Romero, A M; Rodríguez, R; López, J L; Martín, R; Benavente, J F
2016-09-01
In 2008, the CIEMAT Radiation Dosimetry Service decided to implement a quality management system, in accordance with established requirements, in order to achieve ISO/IEC 17025 accreditation. Although the Service comprises the approved individual monitoring services of both external and internal radiation, this paper is specific to the actions taken by the External Dosimetry Service, including personal and environmental dosimetry laboratories, to gain accreditation and the reflections of 3 y of operational experience as an accredited laboratory. © The Author 2015. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.
DeWerd, Larry A; Huq, M Saiful; Das, Indra J; Ibbott, Geoffrey S; Hanson, William F; Slowey, Thomas W; Williamson, Jeffrey F; Coursey, Bert M
2004-03-01
Low dose rate brachytherapy is being used extensively for the treatment of prostate cancer. As of September 2003, there are a total of thirteen 125I and seven 103Pd sources that have calibrations from the National Institute of Standards and Technology (NIST) and the Accredited Dosimetry Calibration Laboratories (ADCLs) of the American Association of Physicists in Medicine (AAPM). The dosimetry standards for these sources are traceable to the NIST wide-angle free-air chamber. Procedures have been developed by the AAPM Calibration Laboratory Accreditation Subcommittee to standardize quality assurance and calibration, and to maintain the dosimetric traceability of these sources to ensure accurate clinical dosimetry. A description of these procedures is provided to the clinical users for traceability purposes as well as to provide guidance to the manufacturers of brachytherapy sources and ADCLs with regard to these procedures.
[Fundamental aspects for accrediting medical equipment calibration laboratories in Colombia].
Llamosa-Rincón, Luis E; López-Isaza, Giovanni A; Villarreal-Castro, Milton F
2010-02-01
Analysing the fundamental methodological aspects which should be considered when drawing up calibration procedure for electro-medical equipment, thereby permitting international standard-based accreditation of electro-medical metrology laboratories in Colombia. NTC-ISO-IEC 17025:2005 and GTC-51-based procedures for calibrating electro-medical equipment were implemented and then used as patterns. The mathematical model for determining the estimated uncertainty value when calibrating electro-medical equipment for accreditation by the Electrical Variable Metrology Laboratory's Electro-medical Equipment Calibration Area accredited in compliance with Superintendence of Industry and Commerce Resolution 25771 May 26th 2009 consists of two equations depending on the case; they are: E = (Ai + sigmaAi) - (Ar + sigmaAr + deltaAr1) and E = (Ai + sigmaAi) - (Ar + sigmaA + deltaAr1). The mathematical modelling implemented for measuring uncertainty in the Universidad Tecnológica de Pereira's Electrical Variable Metrology Laboratory (Electro-medical Equipment Calibration Area) will become a good guide for calibration initiated in other laboratories in Colombia and Latin-America.
Brady, S L; Kaufman, R A
2012-06-01
The use of metal-oxide-semiconductor field-effect transistor (MOSFET) detectors for patient dosimetry has increased by ~25% since 2005. Despite this increase, no standard calibration methodology has been identified nor calibration uncertainty quantified for the use of MOSFET dosimetry in CT. This work compares three MOSFET calibration methodologies proposed in the literature, and additionally investigates questions relating to optimal time for signal equilibration and exposure levels for maximum calibration precision. The calibration methodologies tested were (1) free in-air (FIA) with radiographic x-ray tube, (2) FIA with stationary CT x-ray tube, and (3) within scatter phantom with rotational CT x-ray tube. Each calibration was performed at absorbed dose levels of 10, 23, and 35 mGy. Times of 0 min or 5 min were investigated for signal equilibration before or after signal read out. Calibration precision was measured to be better than 5%-7%, 3%-5%, and 2%-4% for the 10, 23, and 35 mGy respective dose levels, and independent of calibration methodology. No correlation was demonstrated for precision and signal equilibration time when allowing 5 min before or after signal read out. Differences in average calibration coefficients were demonstrated between the FIA with CT calibration methodology 26.7 ± 1.1 mV cGy(-1) versus the CT scatter phantom 29.2 ± 1.0 mV cGy(-1) and FIA with x-ray 29.9 ± 1.1 mV cGy(-1) methodologies. A decrease in MOSFET sensitivity was seen at an average change in read out voltage of ~3000 mV. The best measured calibration precision was obtained by exposing the MOSFET detectors to 23 mGy. No signal equilibration time is necessary to improve calibration precision. A significant difference between calibration outcomes was demonstrated for FIA with CT compared to the other two methodologies. If the FIA with a CT calibration methodology was used to create calibration coefficients for the eventual use for phantom dosimetry, a measurement error ~12
DOE Office of Scientific and Technical Information (OSTI.GOV)
Drzymala, R; Alvarez, P; Bednarz, G
2015-06-15
Petti, Josef Novotny, Gennady Neyman and Steve Goetsch are consultants for Elekta Instrument A/B; Elekta Instrument AB, PTW Freiburg GmbH, Standard Imaging, Inc., and The Phantom Laboratory, Inc. loaned equipment for use in these experiments; The University of Wisconsin Accredited Dosimetry Calibration Laboratory provided calibration services.« less
Calibration facility for environment dosimetry instruments
DOE Office of Scientific and Technical Information (OSTI.GOV)
Bercea, Sorin; Celarel, Aurelia; Cenusa, Constantin
2013-12-16
In the last ten years, the nuclear activities, as well as the major nuclear events (see Fukushima accident) had an increasing impact on the environment, merely by contamination with radioactive materials. The most conferment way to quickly identify the presence of some radioactive elements in the environment, is to measure the dose-equivalent rate H. In this situation, information concerning the values of H due only to the natural radiation background must exist. Usually, the values of H due to the natural radiation background, are very low (∼10{sup −9} - 10{sup −8} Sv/h). A correct measurement of H in this rangemore » involve a performing calibration of the measuring instruments in the measuring range corresponding to the natural radiation background lead to important problems due to the presence of the natural background itself the best way to overlap this difficulty is to set up the calibration stand in an area with very low natural radiation background. In Romania, we identified an area with such special conditions at 200 m dept, in a salt mine. This paper deals with the necessary requirements for such a calibration facility, as well as with the calibration stand itself. The paper includes also, a description of the calibration stand (and images) as well as the radiological and metrological parameters. This calibration facilities for environment dosimetry is one of the few laboratories in this field in Europe.« less
Dosimetry for Small and Nonstandard Fields
NASA Astrophysics Data System (ADS)
Junell, Stephanie L.
The proposed small and non-standard field dosimetry protocol from the joint International Atomic Energy Agency (IAEA) and American Association of Physicist in Medicine working group introduces new reference field conditions for ionization chamber based reference dosimetry. Absorbed dose beam quality conversion factors (kQ factors) corresponding to this formalism were determined for three different models of ionization chambers: a Farmer-type ionization chamber, a thimble ionization chamber, and a small volume ionization chamber. Beam quality correction factor measurements were made in a specially developed cylindrical polymethyl methacrylate (PMMA) phantom and a water phantom using thermoluminescent dosimeters (TLDs) and alanine dosimeters to determine dose to water. The TLD system for absorbed dose to water determination in high energy photon and electron beams was fully characterized as part of this dissertation. The behavior of the beam quality correction factor was observed as it transfers the calibration coefficient from the University of Wisconsin Accredited Dosimetry Calibration Laboratory (UWADCL) 60Co reference beam to the small field calibration conditions of the small field formalism. TLD-determined beam quality correction factors for the calibration conditions investigated ranged from 0.97 to 1.30 and had associated standard deviations from 1% to 3%. The alanine-determined beam quality correction factors ranged from 0.996 to 1.293. Volume averaging effects were observed with the Farmer-type ionization chamber in the small static field conditions. The proposed small and non-standard field dosimetry protocols new composite-field reference condition demonstrated its potential to reduce or remove ionization chamber volume dependancies, but the measured beam quality correction factors were not equal to the standard CoP's kQ, indicating a change in beam quality in the small and non-standard field dosimetry protocols new composite-field reference condition
DOE Office of Scientific and Technical Information (OSTI.GOV)
Drzymala, R. E., E-mail: drzymala@wustl.edu; Alvarez, P. E.; Bednarz, G.
2015-11-15
Purpose: Absorbed dose calibration for gamma stereotactic radiosurgery is challenging due to the unique geometric conditions, dosimetry characteristics, and nonstandard field size of these devices. Members of the American Association of Physicists in Medicine (AAPM) Task Group 178 on Gamma Stereotactic Radiosurgery Dosimetry and Quality Assurance have participated in a round-robin exchange of calibrated measurement instrumentation and phantoms exploring two approved and two proposed calibration protocols or formalisms on ten gamma radiosurgery units. The objectives of this study were to benchmark and compare new formalisms to existing calibration methods, while maintaining traceability to U.S. primary dosimetry calibration laboratory standards. Methods:more » Nine institutions made measurements using ten gamma stereotactic radiosurgery units in three different 160 mm diameter spherical phantoms [acrylonitrile butadiene styrene (ABS) plastic, Solid Water, and liquid water] and in air using a positioning jig. Two calibrated miniature ionization chambers and one calibrated electrometer were circulated for all measurements. Reference dose-rates at the phantom center were determined using the well-established AAPM TG-21 or TG-51 dose calibration protocols and using two proposed dose calibration protocols/formalisms: an in-air protocol and a formalism proposed by the International Atomic Energy Agency (IAEA) working group for small and nonstandard radiation fields. Each institution’s results were normalized to the dose-rate determined at that institution using the TG-21 protocol in the ABS phantom. Results: Percentages of dose-rates within 1.5% of the reference dose-rate (TG-21 + ABS phantom) for the eight chamber-protocol-phantom combinations were the following: 88% for TG-21, 70% for TG-51, 93% for the new IAEA nonstandard-field formalism, and 65% for the new in-air protocol. Averages and standard deviations for dose-rates over all measurements relative to the TG
Federal Register 2010, 2011, 2012, 2013, 2014
2011-07-01
... Laboratory Accreditation for External Dosimetry AGENCY: Office of Health, Safety and Security, Department of... Department) is issuing Technical Standard DOE-STD-1095-2011, Department of Energy Laboratory Accreditation... part, to determine whether to accredit dosimetry programs in accordance with the DOE Laboratory...
HosseiniAliabadi, S J; Hosseini Pooya, S M; Afarideh, H; Mianji, F
2015-06-01
The angular dependency of response for TLD cards may cause deviation from its true value on the results of environmental dosimetry, since TLDs may be exposed to radiation at different angles of incidence from the surrounding area. A 3D setting of TLD cards has been calibrated isotropically in a standard radiation field to evaluate the improvement of the accuracy of measurement for environmental dosimetry. Three personal TLD cards were rectangularly placed in a cylindrical holder, and calibrated using 1D and 3D calibration methods. Then, the dosimeter has been used simultaneously with a reference instrument in a real radiation field measuring the accumulated dose within a time interval. The results show that the accuracy of measurement has been improved by 6.5% using 3D calibration factor in comparison with that of normal 1D calibration method. This system can be utilized in large scale environmental monitoring with a higher accuracy.
HosseiniAliabadi, S. J.; Hosseini Pooya, S. M.; Afarideh, H.; Mianji, F.
2015-01-01
Introduction The angular dependency of response for TLD cards may cause deviation from its true value on the results of environmental dosimetry, since TLDs may be exposed to radiation at different angles of incidence from the surrounding area. Objective A 3D setting of TLD cards has been calibrated isotropically in a standard radiation field to evaluate the improvement of the accuracy of measurement for environmental dosimetry. Method Three personal TLD cards were rectangularly placed in a cylindrical holder, and calibrated using 1D and 3D calibration methods. Then, the dosimeter has been used simultaneously with a reference instrument in a real radiation field measuring the accumulated dose within a time interval. Result The results show that the accuracy of measurement has been improved by 6.5% using 3D calibration factor in comparison with that of normal 1D calibration method. Conclusion This system can be utilized in large scale environmental monitoring with a higher accuracy. PMID:26157729
Fourth conference on radiation protection and dosimetry: Proceedings, program, and abstracts
DOE Office of Scientific and Technical Information (OSTI.GOV)
Casson, W.H.; Thein, C.M.; Bogard, J.S.
This Conference is the fourth in a series of conferences organized by staff members of Oak Ridge National Laboratory in an effort to improve communication in the field of radiation protection and dosimetry. Scientists, regulators, managers, professionals, technologists, and vendors from the United States and countries around the world have taken advantage of this opportunity to meet with their contemporaries and peers in order to exchange information and ideas. The program includes over 100 papers in 9 sessions, plus an additional session for works in progress. Papers are presented in external dosimetry, internal dosimetry, radiation protection programs and assessments, developmentsmore » in instrumentation and materials, environmental and medical applications, and on topics related to standards, accreditation, and calibration. Individual papers are indexed separately on EDB.« less
Ravichandran, Ramamoorthy; Binukumar, Johnson Pichy; Davis, Cheriyathmanjiyil Antony
2013-01-01
The measured dose in water at reference point in phantom is a primary parameter for planning the treatment monitor units (MU); both in conventional and intensity modulated/image guided treatments. Traceability of dose accuracy therefore still depends mainly on the calibration factor of the ion chamber/dosimeter provided by the accredited Secondary Standard Dosimetry Laboratories (SSDLs), under International Atomic Energy Agency (IAEA) network of laboratories. The data related to Nd,water calibrations, thermoluminescent dosimetry (TLD) postal dose validation, inter-comparison of different dosimeter/electrometers, and validity of Nd,water calibrations obtained from different calibration laboratories were analyzed to find out the extent of accuracy achievable. Nd,w factors in Gray/Coulomb calibrated at IBA, GmBH, Germany showed a mean variation of about 0.2% increase per year in three Farmer chambers, in three subsequent calibrations. Another ion chamber calibrated in different accredited laboratory (PTW, Germany) showed consistent Nd,w for 9 years period. The Strontium-90 beta check source response indicated long-term stability of the ion chambers within 1% for three chambers. Results of IAEA postal TL “dose intercomparison” for three photon beams, 6 MV (two) and 15 MV (one), agreed well within our reported doses, with mean deviation of 0.03% (SD 0.87%) (n = 9). All the chamber/electrometer calibrated by a single SSDL realized absorbed doses in water within 0.13% standard deviations. However, about 1-2% differences in absorbed dose estimates observed when dosimeters calibrated from different calibration laboratories are compared in solid phantoms. Our data therefore imply that the dosimetry level maintained for clinical use of linear accelerator photon beams are within recommended levels of accuracy, and uncertainties are within reported values. PMID:24672156
DOE Office of Scientific and Technical Information (OSTI.GOV)
Muir, B. R., E-mail: Bryan.Muir@nrc-cnrc.gc.ca
2015-04-15
Purpose: To analyze absorbed dose calibration coefficients, N{sub D,w}, measured at accredited dosimetry calibration laboratories (ADCLs) for client ionization chambers to study (i) variability among N{sub D,w} coefficients for chambers of the same type calibrated at each ADCL to investigate ion chamber volume fluctuations and chamber manufacturing tolerances; (ii) equivalency of ion chamber calibration coefficients measured at different ADCLs by intercomparing N{sub D,w} coefficients for chambers of the same type; and (iii) the long-term stability of N{sub D,w} coefficients for different chamber types by investigating repeated chamber calibrations. Methods: Large samples of N{sub D,w} coefficients for several chamber types measuredmore » over the time period between 1998 and 2014 were obtained from the three ADCLs operating in the United States. These are analyzed using various graphical and numerical statistical tests for the four chamber types with the largest samples of calibration coefficients to investigate (i) and (ii) above. Ratios of calibration coefficients for the same chamber, typically obtained two years apart, are calculated to investigate (iii) above and chambers with standard deviations of old/new ratios less than 0.3% meet stability requirements for accurate reference dosimetry recommended in dosimetry protocols. Results: It is found that N{sub D,w} coefficients for a given chamber type compared among different ADCLs may arise from differing probability distributions potentially due to slight differences in calibration procedures and/or the transfer of the primary standard. However, average N{sub D,w} coefficients from different ADCLs for given chamber types are very close with percent differences generally less than 0.2% for Farmer-type chambers and are well within reported uncertainties. Conclusions: The close agreement among calibrations performed at different ADCLs reaffirms the Calibration Laboratory Accreditation Subcommittee process of
Calibration of a mosfet detection system for 6-MV in vivo dosimetry.
Scalchi, P; Francescon, P
1998-03-01
Metal oxide semiconductor field-effect transistor (MOSFET) detectors were calibrated to perform in vivo dosimetry during 6-MV treatments, both in normal setup and total body irradiation (TBI) conditions. MOSFET water-equivalent depth, dependence of the calibration factors (CFs) on the field sizes, MOSFET orientation, bias supply, accumulated dose, incidence angle, temperature, and spoiler-skin distance in TBI setup were investigated. MOSFET reproducibility was verified. The correlation between the water-equivalent midplane depth and the ratio of the exit MOSFET readout divided by the entrance MOSFET readout was studied. MOSFET midplane dosimetry in TBI setup was compared with thermoluminescent dosimetry in an anthropomorphic phantom. By using ionization chamber measurements, the TBI midplane dosimetry was also verified in the presence of cork as a lung substitute. The water-equivalent depth of the MOSFET is about 0.8 mm or 1.8 mm, depending on which sensor side faces the beam. The field size also affects this quantity; Monte Carlo simulations allow driving this behavior by changes in the contaminating electron mean energy. The CFs vary linearly as a function of the square field side, for fields ranging from 5 x 5 to 30 x 30 cm2. In TBI setup, varying the spoiler-skin distance between 5 mm and 10 cm affects the CFs within 5%. The MOSFET reproducibility is about 3% (2 SD) for the doses normally delivered to the patients. The effect of the accumulated dose on the sensor response is negligible. For beam incidence ranging from 0 degrees to 90 degrees, the MOSFET response varies within 7%. No monotonic correlation between the sensor response and the temperature is apparent. Good correlation between the water-equivalent midplane depth and the ratio of the exit MOSFET readout divided by the entrance MOSFET readout was found (the correlation coefficient is about 1). The MOSFET midplane dosimetry relevant to the anthropomorphic phantom irradiation is in agreement with TLD
Robinson, Andrew P; Tipping, Jill; Cullen, David M; Hamilton, David; Brown, Richard; Flynn, Alex; Oldfield, Christopher; Page, Emma; Price, Emlyn; Smith, Andrew; Snee, Richard
2016-12-01
Patient-specific absorbed dose calculations for molecular radiotherapy require accurate activity quantification. This is commonly derived from Single-Photon Emission Computed Tomography (SPECT) imaging using a calibration factor relating detected counts to known activity in a phantom insert. A series of phantom inserts, based on the mathematical models underlying many clinical dosimetry calculations, have been produced using 3D printing techniques. SPECT/CT data for the phantom inserts has been used to calculate new organ-specific calibration factors for (99m) Tc and (177)Lu. The measured calibration factors are compared to predicted values from calculations using a Gaussian kernel. Measured SPECT calibration factors for 3D printed organs display a clear dependence on organ shape for (99m) Tc and (177)Lu. The observed variation in calibration factor is reproduced using Gaussian kernel-based calculation over two orders of magnitude change in insert volume for (99m) Tc and (177)Lu. These new organ-specific calibration factors show a 24, 11 and 8 % reduction in absorbed dose for the liver, spleen and kidneys, respectively. Non-spherical calibration factors from 3D printed phantom inserts can significantly improve the accuracy of whole organ activity quantification for molecular radiotherapy, providing a crucial step towards individualised activity quantification and patient-specific dosimetry. 3D printed inserts are found to provide a cost effective and efficient way for clinical centres to access more realistic phantom data.
Lopez, M A; Martin, R; Hernandez, C; Navarro, J F; Navarro, T; Perez, B; Sierra, I
2016-09-01
The accreditation of an Internal Dosimetry Service (IDS) according to ISO/IEC 17025 Standard is a challenge. The aim of this process is to guarantee the technical competence for the monitoring of radionuclides incorporated in the body and for the evaluation of the associated committed effective dose E(50). This publication describes the main accreditation issues addressed by CIEMAT IDS regarding all the procedures involving good practice in internal dosimetry, focussing in the difficulties to ensure the traceability in the whole process, the appropriate calculation of detection limit of measurement techniques, the validation of methods (monitoring and dose assessments), the description of all the uncertainty sources and the interpretation of monitoring data to evaluate the intake and the committed effective dose. © The Author 2015. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.
DOE standard: The Department of Energy Laboratory Accreditation Program for radiobioassay
DOE Office of Scientific and Technical Information (OSTI.GOV)
NONE
1998-12-01
This technical standard describes the US Department of Energy Laboratory Accreditation Program (DOELAP) for Radiobioassay, for use by the US Department of Energy (DOE) and DOE Contractor radiobioassay programs. This standard is intended to be used in conjunction with the general administrative technical standard that describes the overall DOELAP accreditation process--DOE-STD-1111-98, Department of Energy Laboratory Accreditation Program Administration. This technical standard pertains to radiobioassay service laboratories that provide either direct or indirect (in vivo or in vitro) radiobioassay measurements in support of internal dosimetry programs at DOE facilities or for DOE and DOE contractors. Similar technical standards have been developedmore » for other DOELAP dosimetry programs. This program consists of providing an accreditation to DOE radiobioassay programs based on successful completion of a performance-testing process and an on-site evaluation by technical experts. This standard describes the technical requirements and processes specific to the DOELAP Radiobioassay Accreditation Program as required by 10 CFR 835 and as specified generically in DOE-STD-1111-98.« less
On the calibration process of film dosimetry: OLS inverse regression versus WLS inverse prediction.
Crop, F; Van Rompaye, B; Paelinck, L; Vakaet, L; Thierens, H; De Wagter, C
2008-07-21
The purpose of this study was both putting forward a statistically correct model for film calibration and the optimization of this process. A reliable calibration is needed in order to perform accurate reference dosimetry with radiographic (Gafchromic) film. Sometimes, an ordinary least squares simple linear (in the parameters) regression is applied to the dose-optical-density (OD) curve with the dose as a function of OD (inverse regression) or sometimes OD as a function of dose (inverse prediction). The application of a simple linear regression fit is an invalid method because heteroscedasticity of the data is not taken into account. This could lead to erroneous results originating from the calibration process itself and thus to a lower accuracy. In this work, we compare the ordinary least squares (OLS) inverse regression method with the correct weighted least squares (WLS) inverse prediction method to create calibration curves. We found that the OLS inverse regression method could lead to a prediction bias of up to 7.3 cGy at 300 cGy and total prediction errors of 3% or more for Gafchromic EBT film. Application of the WLS inverse prediction method resulted in a maximum prediction bias of 1.4 cGy and total prediction errors below 2% in a 0-400 cGy range. We developed a Monte-Carlo-based process to optimize calibrations, depending on the needs of the experiment. This type of thorough analysis can lead to a higher accuracy for film dosimetry.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Candela-Juan, C., E-mail: ccanjuan@gmail.com; Vijande, J.; García-Martínez, T.
2015-08-15
Purpose: A surface electronic brachytherapy (EBT) device is in fact an x-ray source collimated with specific applicators. Low-energy (<100 kVp) x-ray beam dosimetry faces several challenges that need to be addressed. A number of calibration protocols have been published for x-ray beam dosimetry. The media in which measurements are performed are the fundamental difference between them. The aim of this study was to evaluate the surface dose rate of a low-energy x-ray source with small field applicators using different calibration standards and different small-volume ionization chambers, comparing the values and uncertainties of each methodology. Methods: The surface dose rate ofmore » the EBT unit Esteya (Elekta Brachytherapy, The Netherlands), a 69.5 kVp x-ray source with applicators of 10, 15, 20, 25, and 30 mm diameter, was evaluated using the AAPM TG-61 (based on air kerma) and International Atomic Energy Agency (IAEA) TRS-398 (based on absorbed dose to water) dosimetry protocols for low-energy photon beams. A plane parallel T34013 ionization chamber (PTW Freiburg, Germany) calibrated in terms of both absorbed dose to water and air kerma was used to compare the two dosimetry protocols. Another PTW chamber of the same model was used to evaluate the reproducibility between these chambers. Measurements were also performed with two different Exradin A20 (Standard Imaging, Inc., Middleton, WI) chambers calibrated in terms of air kerma. Results: Differences between surface dose rates measured in air and in water using the T34013 chamber range from 1.6% to 3.3%. No field size dependence has been observed. Differences are below 3.7% when measurements with the A20 and the T34013 chambers calibrated in air are compared. Estimated uncertainty (with coverage factor k = 1) for the T34013 chamber calibrated in water is 2.2%–2.4%, whereas it increases to 2.5% and 2.7% for the A20 and T34013 chambers calibrated in air, respectively. The output factors, measured with the PTW
Jangda, Abdul Qadir; Hussein, Sherali
2012-05-01
In external beam radiation therapy (EBRT), the quality assurance (QA) of the radiation beam is crucial to the accurate delivery of the prescribed dose to the patient. One of the dosimetric parameters that require monitoring is the beam output, specified as the dose rate on the central axis under reference conditions. The aim of this project was to validate dose rate calibration of megavoltage photon beams using the International Atomic Energy Agency (IAEA)/World Health Organisation (WHO) postal audit dosimetry service. Three photon beams were audited: a 6 MV beam from the low-energy linac and 6 and 18 MV beams from a dual high-energy linac. The agreement between our stated doses and the IAEA results was within 1% for the two 6 MV beams and within 2% for the 18 MV beam. The IAEA/WHO postal audit dosimetry service provides an independent verification of dose rate calibration protocol by an international facility.
Clinical laboratory accreditation in India.
Handoo, Anil; Sood, Swaroop Krishan
2012-06-01
Test results from clinical laboratories must ensure accuracy, as these are crucial in several areas of health care. It is necessary that the laboratory implements quality assurance to achieve this goal. The implementation of quality should be audited by independent bodies,referred to as accreditation bodies. Accreditation is a third-party attestation by an authoritative body, which certifies that the applicant laboratory meets quality requirements of accreditation body and has demonstrated its competence to carry out specific tasks. Although in most of the countries,accreditation is mandatory, in India it is voluntary. The quality requirements are described in standards developed by many accreditation organizations. The internationally acceptable standard for clinical laboratories is ISO15189, which is based on ISO/IEC standard 17025. The accreditation body in India is the National Accreditation Board for Testing and Calibration Laboratories, which has signed Mutual Recognition Agreement with the regional cooperation the Asia Pacific Laboratory Accreditation Cooperation and with the apex cooperation the International Laboratory Accreditation Cooperation.
NASA Astrophysics Data System (ADS)
Wiandt, T. J.
2008-06-01
The Hart Scientific Division of the Fluke Corporation operates two accredited standard platinum resistance thermometer (SPRT) calibration facilities, one at the Hart Scientific factory in Utah, USA, and the other at a service facility in Norwich, UK. The US facility is accredited through National Voluntary Laboratory Accreditation Program (NVLAP), and the UK facility is accredited through UKAS. Both provide SPRT calibrations using similar equipment and procedures, and at similar levels of uncertainty. These uncertainties are among the lowest available commercially. To achieve and maintain low uncertainties, it is required that the calibration procedures be thorough and optimized. However, to minimize customer downtime, it is also important that the instruments be calibrated in a timely manner and returned to the customer. Consequently, subjecting the instrument to repeated calibrations or extensive repeated measurements is not a viable approach. Additionally, these laboratories provide SPRT calibration services involving a wide variety of SPRT designs. These designs behave differently, yet predictably, when subjected to calibration measurements. To this end, an evaluation strategy involving both statistical process control and internal consistency measures is utilized to provide confidence in both the instrument calibration and the calibration process. This article describes the calibration facilities, procedure, uncertainty analysis, and internal quality assurance measures employed in the calibration of SPRTs. Data will be reviewed and generalities will be presented. Finally, challenges and considerations for future improvements will be discussed.
Perry Johnson Laboratory Accreditation, Inc. (PJLA)
2011-03-28
Accreditation Body, established in 1999, located in Troy, Michigan • Current Accreditation Programs– ISO / IEC 17025 :2005 and DoD ELAP, EPA NLLAP...Upcoming Accreditation Programs–Field Site Sampling & Measurement Organizations (FSMO)–TNI Volume 1 and 2, Reference Material Producers– ISO Guide...Testing/Calibration – 17025 -Testing–120 – 17025 -Calibration–191 – 17025 & DoD ELAP–14 (5 Pending) – 17025 and EPA NLLAP–1 – Pending
NASA Astrophysics Data System (ADS)
Zafiropoulos, Demetre; Facco, E.; Sarchiapone, Lucia
2016-09-01
In case of a radiation accident, it is well known that in the absence of physical dosimetry biological dosimetry based on cytogenetic methods is a unique tool to estimate individual absorbed dose. Moreover, even when physical dosimetry indicates an overexposure, scoring chromosome aberrations (dicentrics and rings) in human peripheral blood lymphocytes (PBLs) at metaphase is presently the most widely used method to confirm dose assessment. The analysis of dicentrics and rings in PBLs after Giemsa staining of metaphase cells is considered the most valid assay for radiation injury. This work shows that applying the fluorescence in situ hybridization (FISH) technique, using telomeric/centromeric peptide nucleic acid (PNA) probes in metaphase chromosomes for radiation dosimetry, could become a fast scoring, reliable and precise method for biological dosimetry after accidental radiation exposures. In both in vitro methods described above, lymphocyte stimulation is needed, and this limits the application in radiation emergency medicine where speed is considered to be a high priority. Using premature chromosome condensation (PCC), irradiated human PBLs (non-stimulated) were fused with mitotic CHO cells, and the yield of excess PCC fragments in Giemsa stained cells was scored. To score dicentrics and rings under PCC conditions, the necessary centromere and telomere detection of the chromosomes was obtained using FISH and specific PNA probes. Of course, a prerequisite for dose assessment in all cases is a dose-effect calibration curve. This work illustrates the various methods used; dose response calibration curves, with 95% confidence limits used to estimate dose uncertainties, have been constructed for conventional metaphase analysis and FISH. We also compare the dose-response curve constructed after scoring of dicentrics and rings using PCC combined with FISH and PNA probes. Also reported are dose response curves showing scored dicentrics and rings per cell, combining
Accreditation experience of radioisotope metrology laboratory of Argentina.
Iglicki, A; Milá, M I; Furnari, J C; Arenillas, P; Cerutti, G; Carballido, M; Guillén, V; Araya, X; Bianchini, R
2006-01-01
This work presents the experience developed by the Radioisotope Metrology Laboratory (LMR), of the Argentine National Atomic Energy Commission (CNEA), as result of the accreditation process of the Quality System by ISO 17025 Standard. Considering the LMR as a calibration laboratory, services of secondary activity determinations and calibration of activimeters used in Nuclear Medicine were accredited. A peer review of the (alpha/beta)-gamma coincidence system was also carried out. This work shows in detail the structure of the quality system, the results of the accrediting audit and gives the number of non-conformities detected and of observations made which have all been resolved.
Fourie, O L
2004-03-01
This note investigates the calibration of a Scanditronix-Wellhöfer type FC65-G ionisation chamber to be used in clinical photon dosimetry. The current Adaptation by the Australasian College of Physical Scientists and Engineers in Medicine (ACPSEM) of the IAEA TRS 277 dosimetry protocol makes no provision for this type of chamber. The absorbed dose to air calibration coefficient ND was therefore calculated from the air kerma calibration coefficient NK using the formalism of the IAEA TRS 277 protocol and it is shown that the value of the correction factor kmkatt for the FC65-G chamber is identical to that of the NE 2571 chamber. ND was also determined experimentally from a cross calibration against an NE 2571 dosimetry. It was found that there is a good correspondence between the calculated and measured values. To establish to what extent the ACPSEM Adaptation can be used for the FC65-G chamber, values for the ratio of stopping powers in water and air (Sw,air)Q and the perturbation correction factor pQ were calculated using the TRS 277 protocol. From these results it is shown that over the range of beam qualities TPR20,10 = 0.59 to TPR20,10 = 0.78 the Adaptation can be used for the FC65-G chamber.
Calibration of entrance dose measurement for an in vivo dosimetry programme.
Ding, W; Patterson, W; Tremethick, L; Joseph, D
1995-11-01
An increasing number of cancer treatment centres are using in vivo dosimetry as a quality assurance tool for verifying dosimetry as either the entrance or exit surface of the patient undergoing external beam radiotherapy. Equipment is usually limited to either thermoluminescent dosimeters (TLD) or semiconductor detectors such as p-type diodes. The semiconductor detector is more popular than the TLD due to the major advantage of real time analysis of the actual dose delivered. If a discrepancy is observed between the calculated and the measured entrance dose, it is possible to eliminate several likely sources of errors by immediately verifying all treatment parameters. Five Scanditronix EDP-10 p-type diodes were investigated to determine their calibration and relevant correction factors for entrance dose measurements using a Victoreen White Water-RW3 tissue equivalent phantom and a 6 MV photon beam from a Varian Clinac 2100C linear accelerator. Correction factors were determined for individual diodes for the following parameters: source to surface distance (SSD), collimator size, wedge, plate (tray) and temperature. The directional dependence of diode response was also investigated. The SSD correction factor (CSSD) was found to increase by approximately 3% over the range of SSD from 80 to 130 cm. The correction factor for collimator size (Cfield) also varied by approximately 3% between 5 x 5 and 40 x 40 cm2. The wedge correction factor (Cwedge) and plate correction factor (Cplate) were found to be a function of collimator size. Over the range of measurement, these factors varied by a maximum of 1 and 1.5%, respectively. The Cplate variation between the solid and the drilled plates under the same irradiation conditions was a maximum of 2.4%. The diode sensitivity demonstrated an increase with temperature. A maximum of 2.5% variation for the directional dependence of diode response was observed for angle of +/- 60 degrees. In conclusion, in vivo dosimetry is an
DOE Office of Scientific and Technical Information (OSTI.GOV)
Toltz, Allison; Hoesl, Michaela; Schuemann, Jan
Purpose: A method to refine the implementation of an in vivo, adaptive proton therapy range verification methodology was investigated. Simulation experiments and in-phantom measurements were compared to validate the calibration procedure of a time-resolved diode dosimetry technique. Methods: A silicon diode array system has been developed and experimentally tested in phantom for passively scattered proton beam range verification by correlating properties of the detector signal to the water equivalent path length (WEPL). The implementation of this system requires a set of calibration measurements to establish a beam-specific diode response to WEPL fit for the selected ‘scout’ beam in a solidmore » water phantom. This process is both tedious, as it necessitates a separate set of measurements for every ‘scout’ beam that may be appropriate to the clinical case, as well as inconvenient due to limited access to the clinical beamline. The diode response to WEPL relationship for a given ‘scout’ beam may be determined within a simulation environment, facilitating the applicability of this dosimetry technique. Measurements for three ‘scout’ beams were compared against simulated detector response with Monte Carlo methods using the Tool for Particle Simulation (TOPAS). Results: Detector response in water equivalent plastic was successfully validated against simulation for spread out Bragg peaks of range 10 cm, 15 cm, and 21 cm (168 MeV, 177 MeV, and 210 MeV) with adjusted R{sup 2} of 0.998. Conclusion: Feasibility has been shown for performing calibration of detector response for a given ‘scout’ beam through simulation for the time resolved diode dosimetry technique.« less
TLD and OSLD dosimetry systems for remote audits of radiotherapy external beam calibration.
Alvarez, P; Kry, S F; Stingo, F; Followill, D
2017-11-01
The Imaging and Radiation Oncology Core QA Center in Houston (IROC-H) performs remote dosimetry audits of more than 20,000 megavoltage photon and electron beams each year. Both a thermoluminescent dosimeter (TLD-100) and optically stimulated luminescent dosimeter (OSLD; nanoDot) system are commissioned for this task, with the OSLD system being predominant due to the more time-efficient read-out process. The measurement apparatus includes 3 TLD or 2 OSLD in an acrylic mini-phantom, which are irradiated by the institution under reference geometry. Dosimetry systems are calibrated based on the signal-to-dose conversion established with reference dosimeters irradiated in a Co-60 beam, using a reference dose of 300 cGy for TLD and 100 cGy for OSLD. The uncertainty in the dose determination is 1.3% for TLD and 1.6% for OSLD at the one sigma level. This accuracy allows for a tolerance of ±5% to be used.
15 CFR 285.14 - Criteria for accreditation.
Code of Federal Regulations, 2012 CFR
2012-01-01
... INSTITUTE OF STANDARDS AND TECHNOLOGY, DEPARTMENT OF COMMERCE ACCREDITATION AND ASSESSMENT PROGRAMS NATIONAL... for the competence of testing and calibration laboratories, including revisions from time to time. ...
15 CFR 285.14 - Criteria for accreditation.
Code of Federal Regulations, 2011 CFR
2011-01-01
... INSTITUTE OF STANDARDS AND TECHNOLOGY, DEPARTMENT OF COMMERCE ACCREDITATION AND ASSESSMENT PROGRAMS NATIONAL... for the competence of testing and calibration laboratories, including revisions from time to time. ...
15 CFR 285.14 - Criteria for accreditation.
Code of Federal Regulations, 2014 CFR
2014-01-01
... INSTITUTE OF STANDARDS AND TECHNOLOGY, DEPARTMENT OF COMMERCE ACCREDITATION AND ASSESSMENT PROGRAMS NATIONAL... for the competence of testing and calibration laboratories, including revisions from time to time. ...
15 CFR 285.14 - Criteria for accreditation.
Code of Federal Regulations, 2010 CFR
2010-01-01
... INSTITUTE OF STANDARDS AND TECHNOLOGY, DEPARTMENT OF COMMERCE ACCREDITATION AND ASSESSMENT PROGRAMS NATIONAL... for the competence of testing and calibration laboratories, including revisions from time to time. ...
15 CFR 285.14 - Criteria for accreditation.
Code of Federal Regulations, 2013 CFR
2013-01-01
... INSTITUTE OF STANDARDS AND TECHNOLOGY, DEPARTMENT OF COMMERCE ACCREDITATION AND ASSESSMENT PROGRAMS NATIONAL... for the competence of testing and calibration laboratories, including revisions from time to time. ...
NASA Astrophysics Data System (ADS)
Kaus, Rüdiger
This chapter gives the background on the accreditation of testing and calibration laboratories according to ISO/IEC 17025 and sets out the requirements of this international standard. ISO 15189 describes similar requirements especially tailored for medical laboratories. Because of these similarities ISO 15189 is not separately mentioned throughout this lecture.
Specific issues in small animal dosimetry and irradiator calibration
Yoshizumi, Terry; Brady, Samuel L.; Robbins, Mike E.; Bourland, J. Daniel
2013-01-01
Purpose In response to the increased risk of radiological terrorist attack, a network of Centers for Medical Countermeasures against Radiation (CMCR) has been established in the United States, focusing on evaluating animal model responses to uniform, relatively homogenous whole- or partial-body radiation exposures at relatively high dose rates. The success of such studies is dependent not only on robust animal models but on accurate and reproducible dosimetry within and across CMCR. To address this issue, the Education and Training Core of the Duke University School of Medicine CMCR organised a one-day workshop on small animal dosimetry. Topics included accuracy in animal dosimetry accuracy, characteristics and differences of cesium-137 and X-ray irradiators, methods for dose measurement, and design of experimental irradiation geometries for uniform dose distributions. This paper summarises the information presented and discussed. Conclusions Without ensuring accurate and reproducible dosimetry the development and assessment of the efficacy of putative countermeasures will not prove successful. Radiation physics support is needed, but is often the weakest link in the small animal dosimetry chain. We recommend: (i) A user training program for new irradiator users, (ii) subsequent training updates, and (iii) the establishment of a national small animal dosimetry center for all CMCR members. PMID:21961967
Development of a calibration protocol for quantitative imaging for molecular radiotherapy dosimetry
NASA Astrophysics Data System (ADS)
Wevrett, J.; Fenwick, A.; Scuffham, J.; Nisbet, A.
2017-11-01
Within the field of molecular radiotherapy, there is a significant need for standardisation in dosimetry, in both quantitative imaging and dosimetry calculations. Currently, there are a wide range of techniques used by different clinical centres and as a result there is no means to compare patient doses between centres. To help address this need, a 3 year project was funded by the European Metrology Research Programme, and a number of clinical centres were involved in the project. One of the required outcomes of the project was to develop a calibration protocol for three dimensional quantitative imaging of volumes of interest. Two radionuclides were selected as being of particular interest: iodine-131 (131I, used to treat thyroid disorders) and lutetium-177 (177Lu, used to treat neuroendocrine tumours). A small volume of activity within a scatter medium (water), representing a lesion within a patient body, was chosen as the calibration method. To ensure ease of use in clinical centres, an "off-the-shelf" solution was proposed - to avoid the need for in-house manufacturing. The BIODEX elliptical Jaszczak phantom and 16 ml fillable sphere were selected. The protocol was developed for use on SPECT/CT gamma cameras only, where the CT dataset would be used to correct the imaging data for attenuation of the emitted photons within the phantom. The protocol corrects for scatter of emitted photons using the triple energy window correction technique utilised by most clinical systems. A number of clinical systems were tested in the development of this protocol, covering the major manufacturers of gamma camera generally used in Europe. Initial imaging was performed with 131I and 177Lu at a number of clinical centres, but due to time constraints in the project, some acquisitions were performed with 177Lu only. The protocol is relatively simplistic, and does not account for the effects of dead-time in high activity patients, the presence of background activity surrounding
[Laboratory accreditation and proficiency testing].
Kuwa, Katsuhiko
2003-05-01
ISO/TC 212 covering clinical laboratory testing and in vitro diagnostic test systems will issue the international standard for medical laboratory quality and competence requirements, ISO 15189. This standard is based on the ISO/IEC 17025, general requirements for competence of testing and calibration laboratories and ISO 9001, quality management systems-requirements. Clinical laboratory services are essential to patient care and therefore should be available to meet the needs of all patients and clinical personnel responsible for human health care. If a laboratory seeks accreditation, it should select an accreditation body that operates according to this international standard and in a manner which takes into account the particular requirements of clinical laboratories. Proficiency testing should be available to evaluate the calibration laboratories and reference measurement laboratories in clinical medicine. Reference measurement procedures should be of precise and the analytical principle of measurement applied should ensure reliability. We should be prepared to establish a quality management system and proficiency testing in clinical laboratories.
Budzanowski, Maciej; Kopeć, Renata; Obryk, Barbara; Olko, Paweł
2011-03-01
Individual dosimetry service based on thermoluminescence (TLD) detectors has started its activity at the Institute of Nuclear Physics (IFJ) in Krakow in 1965. In 2002, the new Laboratory of Individual and Environment Dosimetry (Polish acronym LADIS) was established and underwent the accreditation according to the EN-PN-ISO/IEC 17025 standard. Nowadays, the service is based on the worldwide known standard thermoluminescent detectors MTS-N (LiF:Mg,Ti) and MCP-N (LiF:Mg,Cu,P), developed at IFJ, processed in automatic thermoluminescent DOSACUS or RE2000 (Rados Oy, Finland) readers. Laboratory provides individual monitoring in terms of personal dose equivalent H(p)(10) and H(p)(0.07) in photon and neutron fields, over the range from 0.1 mSv to 1 Sv, and environmental dosimetry in terms of air kerma K(a) over the range from 30 μGy to 1 Gy and also ambient dose equivalent H*(10) over the range from 30 μSv to 1 Sv. Dosimetric service is currently performed for ca. 3200 institutions from Poland and abroad, monitored on quarterly and monthly basis. The goal of this paper is to identify the main activities leading to the highest radiation exposures in Poland. The paper presents the results of statistical evaluation of ∼ 100,000 quarterly H(p)(10) and K(a) measurements performed between 2002 and 2009. Sixty-five per cent up to 90 % of all individual doses in Poland are on the level of natural radiation background. The dose levels between 0.1 and 5 mSv per quarter are the most frequent in nuclear medicine, veterinary and industrial radiography sectors.
Quality management system in the CIEMAT Radiation Dosimetry Service.
Martín, R; Navarro, T; Romero, A M; López, M A
2011-03-01
This paper describes the activities realised by the CIEMAT Radiation Dosimetry Service (SDR) for the implementation of a quality management system (QMS) in order to achieve compliance with the requirements of ISO/IEC 17025 and to apply for the accreditation for testing measurements of radiation dose. SDR has decided the accreditation of the service as a whole and not for each of its component laboratories. This makes it necessary to design a QMS common to all, thus ensuring alignment and compliance with standard requirements, and simplifying routine works as possible.
Situation analysis of occupational and environmental health laboratory accreditation in Thailand.
Sithisarankul, Pornchai; Santiyanont, Rachana; Wongpinairat, Chongdee; Silva, Panadda; Rojanajirapa, Pinnapa; Wangwongwatana, Supat; Srinetr, Vithet; Sriratanaban, Jiruth; Chuntutanon, Swanya
2002-06-01
The objective of this study was to analyze the current situation of laboratory accreditation (LA) in Thailand, especially on occupational and environmental health. The study integrated both quantitative and qualitative approaches. The response rate of the quantitative questionnaires was 54.5% (226/415). The majority of the responders was environmental laboratories located outside hospital and did not have proficiency testing. The majority used ISO 9000, ISO/IEC 17025 or ISO/ EEC Guide 25, and hospital accreditation (HA) as their quality system. However, only 30 laboratories were currently accredited by one of these systems. Qualitative research revealed that international standard for laboratory accreditation for both testing laboratory and calibration laboratory was ISO/IEC Guide 25, which has been currently revised to be ISO/IEC 17025. The National Accreditation Council (NAC) has authorized 2 organizations as Accreditation Bodies (ABs) for LA: Thai Industrial Standards Institute, Ministry of Industry, and Bureau of Laboratory Quality Standards, Department of Medical Sciences, Ministry of Public Health. Regarding LA in HA, HA considered clinical laboratory as only 1 of 31 items for accreditation. Obtaining HA might satisfy the hospital director and his management team, and hence might actually be one of the obstacles for the hospital to further improve their laboratory quality system and apply for ISO/IEC 17025 which was more technically oriented. On the other hand, HA may be viewed as a good start or even a pre-requisite for laboratories in the hospitals to further improve their quality towards ISO/IEC 17025. Interviewing the director of NAC and some key men in some large laboratories revealed several major problems of Thailand's LA. Both Thai Industrial Standards Institute and Bureau of Laboratory Quality Standards did not yet obtain Mutual Recognition Agreement (MRA) with other international ABs. Several governmental bodies had their own standards and
A new form of the calibration curve in radiochromic dosimetry. Properties and results.
Tamponi, Matteo; Bona, Rossana; Poggiu, Angela; Marini, Piergiorgio
2016-07-01
This work describes a new form of the calibration curve for radiochromic dosimetry that depends on one fit parameter. Some results are reported to show that the new curve performs as well as those previously used and, more importantly, significantly reduces the dependence on the lot of films, the film orientation on the scanner, and the time after exposure. The form of the response curve makes use of the net optical densities ratio against the dose and has been studied by means of the Beer-Lambert law and a simple modeling of the film. The new calibration curve has been applied to EBT3 films exposed at 6 and 15 MV energy beams of linear accelerators and read-out in transmission mode by means of a flatbed color scanner. Its performance has been compared to that of two established forms of the calibration curve, which use the optical density and the net optical density against the dose. Four series of measurements with four lots of EBT3 films were used to evaluate the precision, accuracy, and dependence on the time after exposure, orientation on the scanner and lot of films. The new calibration curve is roughly subject to the same dose uncertainty, about 2% (1 standard deviation), and has the same accuracy, about 1.5% (dose values between 50 and 450 cGy), as the other calibration curves when films of the same lot are used. Moreover, the new calibration curve, albeit obtained from only one lot of film, shows a good agreement with experimental data from all other lots of EBT3 films used, with an accuracy of about 2% and a relative dose precision of 2.4% (1 standard deviation). The agreement also holds for changes of the film orientation and of the time after exposure. The dose accuracy of this new form of the calibration curve is always equal to or better than those obtained from the two types of curves previously used. The use of the net optical densities ratio considerably reduces the dependence on the lot of films, the landscape/portrait orientation, and the time
NASA Astrophysics Data System (ADS)
Hussain, F.; Khairuddin, S.; Othman, H.
2017-01-01
An inter-laboratory comparison in relative humidity measurements among accredited laboratories has been coordinated by the National Metrology Institute of Malaysia. It was carried out to determine the performance of the participating laboratories. The objective of the comparison was to acknowledge the participating laboratories competencies and to verify the level of accuracies declared in their scope of accreditation, in accordance with the MS ISO/IEC 17025 accreditation. The measurement parameter involved was relative humidity for the range of 30-90 %rh at a nominal temperature of 50°C. Eight accredited laboratories participated in the inter-laboratory comparison. Two units of artifacts have been circulated among the participants as the transfer standards.
Monte Carlo study of a 60Co calibration field of the Dosimetry Laboratory Seibersdorf.
Hranitzky, C; Stadtmann, H
2007-01-01
The gamma radiation fields of the reference irradiation facility of the Dosimetry Laboratory Seibersdorf with collimated beam geometry are used for calibrating radiation protection dosemeters. A close-to-reality simulation model of the facility including the complex geometry of a 60Co source was set up using the Monte Carlo code MCNP. The goal of this study is to characterise the radionuclide gamma calibration field and resulting air-kerma distributions inside the measurement hall with a total of 20 m in length. For the whole range of source-detector-distances (SDD) along the central beam axis, simulated and measured relative air-kerma values are within +/-0.6%. Influences on the accuracy of the simulation results are investigated, including e.g., source mass density effects or detector volume dependencies. A constant scatter contribution from the lead ring-collimator of approximately 1% and an increasing scatter contribution from the concrete floor for distances above 7 m are identified, resulting in a total air-kerma scatter contribution below 5%, which is in accordance to the ISO 4037-1 recommendations.
ESR/Alanine gamma-dosimetry in the 10-30 Gy range.
Fainstein, C; Winkler, E; Saravi, M
2000-05-01
We report Alanine Dosimeter preparation, procedures for using the ESR/Dosimetry method, and the resulting calibration curve for gamma-irradiation in the range from 10-30 Gy. We use calibration curve to measure the irradiation dose in gamma-irradiation of human blood, as required in Blood Transfusion Therapy. The ESR/Alanine results are compared against those obtained using the thermoluminescent dosimetry (TLD) method.
Evaluation of Calibration Laboratories Performance
NASA Astrophysics Data System (ADS)
Filipe, Eduarda
2011-12-01
One of the main goals of interlaboratory comparisons (ILCs) is the evaluation of the laboratories performance for the routine calibrations they perform for the clients. In the frame of Accreditation of Laboratories, the national accreditation boards (NABs) in collaboration with the national metrology institutes (NMIs) organize the ILCs needed to comply with the requirements of the international accreditation organizations. In order that an ILC is a reliable tool for a laboratory to validate its best measurement capability (BMC), it is needed that the NMI (reference laboratory) provides a better traveling standard—in terms of accuracy class or uncertainty—than the laboratories BMCs. Although this is the general situation, there are cases where the NABs ask the NMIs to evaluate the performance of the accredited laboratories when calibrating industrial measuring instruments. The aim of this article is to discuss the existing approaches for the evaluation of ILCs and propose a basis for the validation of the laboratories measurement capabilities. An example is drafted with the evaluation of the results of mercury-in-glass thermometers ILC with 12 participant laboratories.
A new form of the calibration curve in radiochromic dosimetry. Properties and results
DOE Office of Scientific and Technical Information (OSTI.GOV)
Tamponi, Matteo, E-mail: mtamponi@aslsassari.it; B
Purpose: This work describes a new form of the calibration curve for radiochromic dosimetry that depends on one fit parameter. Some results are reported to show that the new curve performs as well as those previously used and, more importantly, significantly reduces the dependence on the lot of films, the film orientation on the scanner, and the time after exposure. Methods: The form of the response curve makes use of the net optical densities ratio against the dose and has been studied by means of the Beer–Lambert law and a simple modeling of the film. The new calibration curve hasmore » been applied to EBT3 films exposed at 6 and 15 MV energy beams of linear accelerators and read-out in transmission mode by means of a flatbed color scanner. Its performance has been compared to that of two established forms of the calibration curve, which use the optical density and the net optical density against the dose. Four series of measurements with four lots of EBT3 films were used to evaluate the precision, accuracy, and dependence on the time after exposure, orientation on the scanner and lot of films. Results: The new calibration curve is roughly subject to the same dose uncertainty, about 2% (1 standard deviation), and has the same accuracy, about 1.5% (dose values between 50 and 450 cGy), as the other calibration curves when films of the same lot are used. Moreover, the new calibration curve, albeit obtained from only one lot of film, shows a good agreement with experimental data from all other lots of EBT3 films used, with an accuracy of about 2% and a relative dose precision of 2.4% (1 standard deviation). The agreement also holds for changes of the film orientation and of the time after exposure. Conclusions: The dose accuracy of this new form of the calibration curve is always equal to or better than those obtained from the two types of curves previously used. The use of the net optical densities ratio considerably reduces the dependence on the lot of films
Design and Calibration of a X-Ray Millibeam
2005-12-01
developed for use in Fricke dosimetry , parallel-plate ionization chambers, Lithium Fluoride thermoluminescent dosimetry ( TLD ), and EBT GafChromic...thermoluminescent dosimetry ( TLD ), and EBT GafChromic film to characterize the spatial distribution and accuracy of the doses produced by the Faxitron. A...absorbed dose calibration factors for use in Fricke dosimetry , parallel-plate ionization chambers, Lithium Fluoride (LiF) TLD , and EBT GafChromic film. The
Services of the CDRH X-ray calibration laboratory and their traceability to National Standards
DOE Office of Scientific and Technical Information (OSTI.GOV)
Cerra, F.; Heaton, H.T.
The X-ray Calibration Laboratory (XCL) of the Center for Devices and Radiological Health (CDRH) provides calibration services for the Food and Drug Administration (FDA). The instruments calibrated are used by FDA and contract state inspectors to verify compliance with federal x-ray performance standards and for national surveys of x-ray trends. In order to provide traceability of measurements, the CDRH XCL is accredited by the National Voluntary Laboratory Accreditation Program (NVLAP) for reference, diagnostic, and x-ray survey instrument calibrations. In addition to these accredited services, the CDRH XCL also calibrates non-invasive kVp meters in single- and three-phase x-ray beams, and thermoluminescentmore » dosimeter (TLD) chips used to measure CT beam profiles. The poster illustrates these services and shows the traceability links back to the National Standards.« less
Toltz, Allison; Hoesl, Michaela; Schuemann, Jan; Seuntjens, Jan; Lu, Hsiao-Ming; Paganetti, Harald
2017-11-01
Our group previously introduced an in vivo proton range verification methodology in which a silicon diode array system is used to correlate the dose rate profile per range modulation wheel cycle of the detector signal to the water-equivalent path length (WEPL) for passively scattered proton beam delivery. The implementation of this system requires a set of calibration data to establish a beam-specific response to WEPL fit for the selected 'scout' beam (a 1 cm overshoot of the predicted detector depth with a dose of 4 cGy) in water-equivalent plastic. This necessitates a separate set of measurements for every 'scout' beam that may be appropriate to the clinical case. The current study demonstrates the use of Monte Carlo simulations for calibration of the time-resolved diode dosimetry technique. Measurements for three 'scout' beams were compared against simulated detector response with Monte Carlo methods using the Tool for Particle Simulation (TOPAS). The 'scout' beams were then applied in the simulation environment to simulated water-equivalent plastic, a CT of water-equivalent plastic, and a patient CT data set to assess uncertainty. Simulated detector response in water-equivalent plastic was validated against measurements for 'scout' spread out Bragg peaks of range 10 cm, 15 cm, and 21 cm (168 MeV, 177 MeV, and 210 MeV) to within 3.4 mm for all beams, and to within 1 mm in the region where the detector is expected to lie. Feasibility has been shown for performing the calibration of the detector response for three 'scout' beams through simulation for the time-resolved diode dosimetry technique in passive scattered proton delivery. © 2017 The Authors. Journal of Applied Clinical Medical Physics published by Wiley Periodicals, Inc. on behalf of American Association of Physicists in Medicine.
ERIC Educational Resources Information Center
Wixom, Micah Ann
2014-01-01
Accreditation policies vary widely among the states. Since Education Commission of the States last reviewed public school accreditation policies in 1998, a number of states have seen their legislatures take a stronger role in accountability--resulting in a move from state-administered accreditation systems to outcomes-focused state accountability…
NASA Technical Reports Server (NTRS)
Akers, James C.; Cooper, Beth A.
2004-01-01
NASA Glenn Research Center's Acoustical Testing Laboratory (ATL) provides a comprehensive array of acoustical testing services, including sound pressure level, sound intensity level, and sound-power-level testing per International Standards Organization (ISO)1 3744. Since its establishment in September 2000, the ATL has provided acoustic emission testing and noise control services for a variety of customers, particularly microgravity space flight hardware that must meet International Space Station acoustic emission requirements. The ATL consists of a 23- by 27- by 20-ft (height) convertible hemi/anechoic test chamber and a separate sound-attenuating test support enclosure. The ATL employs a personal-computer-based data acquisition system that provides up to 26 channels of simultaneous data acquisition with real-time analysis (ref. 4). Specialized diagnostic tools, including a scanning sound-intensity system, allow the ATL's technical staff to support its clients' aggressive low-noise design efforts to meet the space station's acoustic emission requirement. From its inception, the ATL has pursued the goal of developing a comprehensive ISO 17025-compliant quality program that would incorporate Glenn's existing ISO 9000 quality system policies as well as ATL-specific technical policies and procedures. In March 2003, the ATL quality program was awarded accreditation by the National Voluntary Laboratory Accreditation Program (NVLAP) for sound-power-level testing in accordance with ISO 3744. The NVLAP program is administered by the National Institutes of Standards and Technology (NIST) of the U.S. Department of Commerce and provides third-party accreditation for testing and calibration laboratories. There are currently 24 NVLAP-accredited acoustical testing laboratories in the United States. NVLAP accreditation covering one or more specific testing procedures conducted in accordance with established test standards is awarded upon successful completion of an intensive
López-Isaza, Giovanni A; Llamosa-Rincón, Luis E
2008-01-01
Determining quality features related to tracking biomedical equipment calibration patterns and their electrical safety as implemented by Health Care Institutions in the Risaralda department. This was a descriptive study using non-probabilistic sampling and the criterion of a greater equipment inventory and service demand for Clinics, Aesthetic, Radiology and Dentistry Centres and Hospitals. Census; the instrument was applied to 32 health-care institutions distributed throughout the Risaralda departments 14 municipalities between September 2005 and January 2006. Hospitals was the category having a highest number of electro-medical equipment (56%). Pereira (the capital of Risaralda) had 81% of all electro-medical equipment. All the institutions lacked NTC-ISO-IEC-17025 accreditation regarding standards certified by the Superintendence of Industry and Commerce. None of the institutions externally contracted by the institutions being surveyed was accredited. There is a public health risk in the Risaralda department; all health-care institutions lacked NTC-ISO-IEC-17025 accreditation and external institutions (in turn being hired by them for calibrating their equipment) also lacked accreditation. Based on the information obtained from non-calibrated equipment having international patterns, there is a great danger that determining the quality of biomedical equipment calibration patterns may be erroneous. It also places health-care institutions at a competitive disadvantage when compared to other accredited institutions in Colombia or in other countries.
Federal Register 2010, 2011, 2012, 2013, 2014
2011-08-23
.... APHIS-2006-0093] RIN 0579-AC04 National Veterinary Accreditation Program; Currently Accredited... accredited in the National Veterinary Accreditation Program (NVAP) may continue to perform accredited duties..., 2011. FOR FURTHER INFORMATION CONTACT: Dr. Todd Behre, National Veterinary Accreditation Program, VS...
Calibration of helical tomotherapy machine using EPR/alanine dosimetry.
Perichon, Nicolas; Garcia, Tristan; François, Pascal; Lourenço, Valérie; Lesven, Caroline; Bordy, Jean-Marc
2011-03-01
Current codes of practice for clinical reference dosimetry of high-energy photon beams in conventional radiotherapy recommend using a 10 x 10 cm2 square field, with the detector at a reference depth of 10 cm in water and 100 cm source to surface distance (SSD) (AAPM TG-51) or 100 cm source-to-axis distance (SAD) (IAEA TRS-398). However, the maximum field size of a helical tomotherapy (HT) machine is 40 x 5 cm2 defined at 85 cm SAD. These nonstandard conditions prevent a direct implementation of these protocols. The purpose of this study is twofold: To check the absorbed dose in water and dose rate calibration of a tomotherapy unit as well as the accuracy of the tomotherapy treatment planning system (TPS) calculations for a specific test case. Both topics are based on the use of electron paramagnetic resonance (EPR) using alanine as transfer dosimeter between the Laboratoire National Henri Becquerel (LNHB) 60Co-gamma-ray reference beam and the Institut Curie's HT beam. Irradiations performed in the LNHB reference 60Co-gamma-ray beam allowed setting up the calibration method, which was then implemented and tested at the LNHB 6 MV linac x-ray beam, resulting in a deviation of 1.6% (at a 1% standard uncertainty) relative to the reference value determined with the standard IAEA TRS-398 protocol. HT beam dose rate estimation shows a difference of 2% with the value stated by the manufacturer at a 2% standard uncertainty. A 4% deviation between measured dose and the calculation from the tomotherapy TPS was found. The latter was originated by an inadequate representation of the phantom CT-scan values and, consequently, mass densities within the phantom. This difference has been explained by the mass density values given by the CT-scan and used by the TPS which were not the true ones. Once corrected using Monte Carlo N-Particle simulations to validate the accuracy of this process, the difference between corrected TPS calculations and alanine measured dose values was then
NASA Astrophysics Data System (ADS)
Perini, Ana P.; Neves, Lucio P.; Maia, Ana F.; Caldas, Linda V. E.
2013-12-01
In this work, a new extended-length parallel-plate ionization chamber was tested in the standard radiation qualities for computed tomography established according to the half-value layers defined at the IEC 61267 standard, at the Calibration Laboratory of the Instituto de Pesquisas Energéticas e Nucleares (IPEN). The experimental characterization was made following the IEC 61674 standard recommendations. The experimental results obtained with the ionization chamber studied in this work were compared to those obtained with a commercial pencil ionization chamber, showing a good agreement. With the use of the PENELOPE Monte Carlo code, simulations were undertaken to evaluate the influence of the cables, insulator, PMMA body, collecting electrode, guard ring, screws, as well as different materials and geometrical arrangements, on the energy deposited on the ionization chamber sensitive volume. The maximum influence observed was 13.3% for the collecting electrode, and regarding the use of different materials and design, the substitutions showed that the original project presented the most suitable configuration. The experimental and simulated results obtained in this work show that this ionization chamber has appropriate characteristics to be used at calibration laboratories, for dosimetry in standard computed tomography and diagnostic radiology quality beams.
Federal Register 2010, 2011, 2012, 2013, 2014
2010-09-28
.... APHIS-2006-0093] RIN 0579-AC04 National Veterinary Accreditation Program; Currently Accredited... Veterinary Accreditation Program (NVAP) may continue to perform accredited duties and to elect to continue to..., National Veterinary Accreditation Program, VS, APHIS, 4700 River Road Unit 200, Riverdale, MD 20737; (301...
TH-A-204-00: Key Dosimetry Data - Impact of New ICRU Recommendations
DOE Office of Scientific and Technical Information (OSTI.GOV)
NONE
The ICRU is currently finalizing a report on key data for radiation dosimetry. This multi-year review has resulted in a number of recommendations regarding “fundamental” data that are used in dosimetry related to radiation therapy. This educational session will explain the background for the ICRU committee’s work, the content and conclusions of the report and the impact on outputs, including NIST primary standards, ADCL calibration coefficients and clinical reference dosimetry. Parameters and beam modalities potentially affected by this report include: The mean excitation energy, I, for graphite, air, and water, The average energy required to create an ion pair inmore » dry air (commonly referred to as W/e), The uncertainty in the determination of air kerma in kV xrays The absolute value of Co-60 and Cs-137 primary standards and the dissemination of calibration coefficients, The determination of air kerma strength for Ir-192 HDR brachytherapy sources Ion chamber kQ factors for linac MV beams Ion chamber kQ factors for proton beams. The changes in reference dosimetry that would result from adoption of the ICRU recommendations are of the order of 0.5% to 1%, an effect that will not impact clinical dose delivery but will be detectable in the clinical setting. This session will also outline how worldwide metrology is coordinated through the Convention of the Meter and therefore how the international dosimetry community will proceed with adopting these recommendations so that uniformity from country to country in reference dosimetry is maintained. Timelines and communications methods will also be discussed to ensure that users, such as clinical medical physicists, are not surprised when their chamber’s calibration coefficient apparently changes. Learning Objectives: Understand the background for the ICRU committee’s work on key dosimetry data. Understand the proposed changes to key data and the impacts on reference dosimetry. Understand the methodology and
TH-A-204-01: Part I - Key Data for Ionizing-Radiation Dosimetry
DOE Office of Scientific and Technical Information (OSTI.GOV)
Seltzer, S.
The ICRU is currently finalizing a report on key data for radiation dosimetry. This multi-year review has resulted in a number of recommendations regarding “fundamental” data that are used in dosimetry related to radiation therapy. This educational session will explain the background for the ICRU committee’s work, the content and conclusions of the report and the impact on outputs, including NIST primary standards, ADCL calibration coefficients and clinical reference dosimetry. Parameters and beam modalities potentially affected by this report include: The mean excitation energy, I, for graphite, air, and water, The average energy required to create an ion pair inmore » dry air (commonly referred to as W/e), The uncertainty in the determination of air kerma in kV x-rays The absolute value of Co-60 and Cs-137 primary standards and the dissemination of calibration coefficients, The determination of air kerma strength for Ir-192 HDR brachytherapy sources Ion chamber kQ factors for linac MV beams Ion chamber kQ factors for proton beams. The changes in reference dosimetry that would result from adoption of the ICRU recommendations are of the order of 0.5% to 1%, an effect that will not impact clinical dose delivery but will be detectable in the clinical setting. This session will also outline how worldwide metrology is coordinated through the Convention of the Meter and therefore how the international dosimetry community will proceed with adopting these recommendations so that uniformity from country to country in reference dosimetry is maintained. Timelines and communications methods will also be discussed to ensure that users, such as clinical medical physicists, are not surprised when their chamber’s calibration coefficient apparently changes. Learning Objectives: Understand the background for the ICRU committee’s work on key dosimetry data. Understand the proposed changes to key data and the impacts on reference dosimetry. Understand the methodology and
NASA Astrophysics Data System (ADS)
Beddar, A. S.; Tailor, R. C.
2004-04-01
A new approach to intraoperative radiation therapy led to the development of mobile linear electron accelerators that provide lower electron energy beams than the usual conventional accelerators commonly encountered in radiotherapy. Such mobile electron accelerators produce electron beams that have nominal energies of 4, 6, 9 and 12 MeV. This work compares the absorbed dose output calibrations using both the AAPM TG-51 and TG-21 dose calibration protocols for two types of ion chambers: a plane-parallel (PP) ionization chamber and a cylindrical ionization chamber. Our results indicate that the use of a 'Markus' PP chamber causes 2 3% overestimation in dose output determination if accredited dosimetry-calibration laboratory based chamber factors \\big(N_{{\\rm D},{\\rm w}}^{{}^{60}{\\rm Co}}, N_x\\big) are used. However, if the ionization chamber factors are derived using a cross-comparison at a high-energy electron beam, then a good agreement is obtained (within 1%) with a calibrated cylindrical chamber over the entire energy range down to 4 MeV. Furthermore, even though the TG-51 does not recommend using cylindrical chambers at the low energies, our results show that the cylindrical chamber has a good agreement with the PP chamber not only at 6 MeV but also down to 4 MeV electron beams.
ERIC Educational Resources Information Center
Horrocks, Norman
1984-01-01
Reports on conference convened by Association for Library and Information Science Education for discussion of library school accreditation by 17 library-related associations and agencies. Highlights include accreditation models, accrediting information science, records management, special librarians, certification for archivists, M.L.S. in…
Trattner, Sigal; Prinsen, Peter; Wiegert, Jens; Gerland, Elazar-Lars; Shefer, Efrat; Morton, Tom; Thompson, Carla M; Yagil, Yoad; Cheng, Bin; Jambawalikar, Sachin; Al-Senan, Rani; Amurao, Maxwell; Halliburton, Sandra S; Einstein, Andrew J
2017-12-01
Metal-oxide-semiconductor field-effect transistors (MOSFETs) serve as a helpful tool for organ radiation dosimetry and their use has grown in computed tomography (CT). While different approaches have been used for MOSFET calibration, those using the commonly available 100 mm pencil ionization chamber have not incorporated measurements performed throughout its length, and moreover, no previous work has rigorously evaluated the multiple sources of error involved in MOSFET calibration. In this paper, we propose a new MOSFET calibration approach to translate MOSFET voltage measurements into absorbed dose from CT, based on serial measurements performed throughout the length of a 100-mm ionization chamber, and perform an analysis of the errors of MOSFET voltage measurements and four sources of error in calibration. MOSFET calibration was performed at two sites, to determine single calibration factors for tube potentials of 80, 100, and 120 kVp, using a 100-mm-long pencil ion chamber and a cylindrical computed tomography dose index (CTDI) phantom of 32 cm diameter. The dose profile along the 100-mm ion chamber axis was sampled in 5 mm intervals by nine MOSFETs in the nine holes of the CTDI phantom. Variance of the absorbed dose was modeled as a sum of the MOSFET voltage measurement variance and the calibration factor variance, the latter being comprised of three main subcomponents: ionization chamber reading variance, MOSFET-to-MOSFET variation and a contribution related to the fact that the average calibration factor of a few MOSFETs was used as an estimate for the average value of all MOSFETs. MOSFET voltage measurement error was estimated based on sets of repeated measurements. The calibration factor overall voltage measurement error was calculated from the above analysis. Calibration factors determined were close to those reported in the literature and by the manufacturer (~3 mV/mGy), ranging from 2.87 to 3.13 mV/mGy. The error σ V of a MOSFET voltage
NASA Astrophysics Data System (ADS)
Palmans, Hugo; Nafaa, Laila; de Patoul, Nathalie; Denis, Jean-Marc; Tomsej, Milan; Vynckier, Stefaan
2003-05-01
New codes of practice for reference dosimetry in clinical high-energy photon and electron beams have been published recently, to replace the air kerma based codes of practice that have determined the dosimetry of these beams for the past twenty years. In the present work, we compared dosimetry based on the two most widespread absorbed dose based recommendations (AAPM TG-51 and IAEA TRS-398) with two air kerma based recommendations (NCS report-5 and IAEA TRS-381). Measurements were performed in three clinical electron beam energies using two NE2571-type cylindrical chambers, two Markus-type plane-parallel chambers and two NACP-02-type plane-parallel chambers. Dosimetry based on direct calibrations of all chambers in 60Co was investigated, as well as dosimetry based on cross-calibrations of plane-parallel chambers against a cylindrical chamber in a high-energy electron beam. Furthermore, 60Co perturbation factors for plane-parallel chambers were derived. It is shown that the use of 60Co calibration factors could result in deviations of more than 2% for plane-parallel chambers between the old and new codes of practice, whereas the use of cross-calibration factors, which is the first recommendation in the new codes, reduces the differences to less than 0.8% for all situations investigated here. The results thus show that neither the chamber-to-chamber variations, nor the obtained absolute dose values are significantly altered by changing from air kerma based dosimetry to absorbed dose based dosimetry when using calibration factors obtained from the Laboratory for Standard Dosimetry, Ghent, Belgium. The values of the 60Co perturbation factor for plane-parallel chambers (katt . km for the air kerma based and pwall for the absorbed dose based codes of practice) that are obtained from comparing the results based on 60Co calibrations and cross-calibrations are within the experimental uncertainties in agreement with the results from other investigators.
Electromedical devices test laboratories accreditation
NASA Astrophysics Data System (ADS)
Murad, C.; Rubio, D.; Ponce, S.; Álvarez Abri, A.; Terrón, A.; Vicencio, D.; Fascioli, E.
2007-11-01
In the last years, the technology and equipment at hospitals have been increase in a great way as the risks of their implementation. Safety in medical equipment must be considered an important issue to protect patients and their users. For this reason, test and calibrations laboratories must verify the correct performance of this kind of devices under national and international standards. Is an essential mission for laboratories to develop their measurement activities taking into account a quality management system. In this article, we intend to transmit our experience working to achieve an accredited Test Laboratories for medical devices in National technological University.
New NREL Method Reduces Uncertainty in Photovoltaic Module Calibrations |
calibration traceability to certified test laboratories. This reliable calibration, in turn, determines the of a spire flash simulator, SOMS outdoor test bed, and LACSS continuous simulator. In NREL's Cell and % (k=2 coverage factor). This value is the lowest reported Pmax uncertainty of any accredited test
The Condition of Accreditation: U.S. Accreditation in 2011
ERIC Educational Resources Information Center
Council for Higher Education Accreditation, 2012
2012-01-01
Institutions are accredited by three types of accreditors: national faith-related organizations that accredit religiously affiliated and doctrinally based institutions that are primarily degree-granting and nonprofit; national career-related organizations that accredit mainly for-profit career-based degree-granting and non-degree-granting…
21 CFR 900.13 - Revocation of accreditation and revocation of accreditation body approval.
Code of Federal Regulations, 2011 CFR
2011-04-01
... accreditation body approval. 900.13 Section 900.13 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF... Certification § 900.13 Revocation of accreditation and revocation of accreditation body approval. (a) FDA action following revocation of accreditation. If a facility's accreditation is revoked by an accreditation body...
Dantas, B M; Dantas, A L A; Acar, M E D; Cardoso, J C S; Julião, L M Q C; Lima, M F; Taddei, M H T; Arine, D R; Alonso, T; Ramos, M A P; Fajgelj, A
2011-03-01
In recent years, Brazilian Nuclear Programme has been reviewed and updated by government authorities in face of the demand for energy supply and its associated environmental constraints. The immediate impact of new national programmes and projects in nuclear field is the increase in the number of exposed personnel and the consequent need for reliable dosimetry services in the country. Several Technical Documents related to internal dosimetry have been released by the International Atomic Energy Agency and International Commission on Radiological Protection. However, standard bioassay procedures and methodologies for bioassay data interpretation are still under discussion and, in some cases, both in routine and emergency internal monitoring, procedures can vary from one laboratory to another and responses may differ markedly among Dosimetry Laboratories. Thus, it may be difficult to interpret and use bioassay data generated from different laboratories of a network. The main goal of this work is to implement a National Network of Laboratories aimed to provide reliable internal monitoring services in Brazil. The establishment of harmonised in vivo and in vitro radioanalytical techniques, dose assessment methods and the implementation of the ISO/IEC 17025 requirements will result in the recognition of technical competence of the network.
Development of a quality assurance program for ionizing radiation secondary calibration laboratories
DOE Office of Scientific and Technical Information (OSTI.GOV)
Heaton, H.T. II; Taylor, A.R. Jr.
For calibration laboratories, routine calibrations of instruments meeting stated accuracy goals are important. One method of achieving the accuracy goals is to establish and follow a quality assurance program designed to monitor all aspects of the calibration program and to provide the appropriate feedback mechanism if adjustments are needed. In the United States there are a number of organizations with laboratory accreditation programs. All existing accreditation programs require that the laboratory implement a quality assurance program with essentially the same elements in all of these programs. Collectively, these elements have been designated as a Measurement Quality Assurance (MQA) program. Thismore » paper will briefly discuss the interrelationship of the elements of an MQA program. Using the Center for Devices and Radiological Health (CDRH) X-ray Calibration Laboratory (XCL) as an example, it will focus on setting up a quality control program for the equipment in a Secondary Calibration Laboratory.« less
First Interlaboratory Comparison on Calibration of Temperature-Controlled Enclosures in Turkey
NASA Astrophysics Data System (ADS)
Uytun, A.; Kalemci, M.
2017-11-01
The number of accredited laboratories in the field of calibration of temperature-controlled enclosures has been increasing in Turkey. One of the main criteria demonstrating the competence of a calibration laboratory is successful participation in interlaboratory comparisons. Therefore, TUBITAK UME Temperature Laboratory organized the first interlaboratory comparison on "Calibration of Temperature-Controlled Enclosures" in Turkey as a pilot laboratory between January and November, 2013. Forty accredited laboratories which provide routine calibration services to the industry in this field participated in the comparison. The standards used during the comparison was a climatic chamber for the measurements at -40 {°}C, -20 {°}C, 40 {°}C and 100 {°}C and an oven for the measurements at 200 {°}C. The protocol of the comparison was prepared considering guide EURAMET cg-20 and BS EN/IEC standards 600068-3-5 and 600068-3-11. During the comparison measurements, each participant had the liberty to choose the most convenient calibration points in terms of their accreditation scope among the values mentioned above and carried out on-site measurements at UME. The details and the results of this comparison are given in the paper. Determination of the statistical consistency of the results with the uncertainties given by the participants can be assessed by the method of En value assessment for each laboratory. En values for all measurement results based on the results of pilot and participating laboratories were calculated.
Multichannel film dosimetry with nonuniformity correction.
Micke, Andre; Lewis, David F; Yu, Xiang
2011-05-01
A new method to evaluate radiochromic film dosimetry data scanned in multiple color channels is presented. This work was undertaken to demonstrate that the multichannel method is fundamentally superior to the traditional single channel method. The multichannel method allows for the separation and removal of the nondose-dependent portions of a film image leaving a residual image that is dependent only on absorbed dose. Radiochromic films were exposed to 10 x 10 cm radiation fields (Co-60 and 6 MV) at doses up to about 300 cGy. The films were scanned in red-blue-green (RGB) format on a flatbed color scanner and measured to build calibration tables relating the absorbed dose to the response of the film in each of the color channels. Film images were converted to dose maps using two methods. The first method used the response from a single color channel and the second method used the response from all three color channels. The multichannel method allows for the separation of the scanned signal into one part that is dose-dependent and another part that is dose-independent and enables the correction of a variety of disturbances in the digitized image including nonuniformities in the active coating on the radiochromic film as well as scanner related artifacts. The fundamental mathematics of the two methods is described and the dose maps calculated from film images using the two methods are compared and analyzed. The multichannel dosimetry method was shown to be an effective way to separate out non-dose-dependent abnormalities from radiochromic dosimetry film images. The process was shown to remove disturbances in the scanned images caused by nonhomogeneity of the radiochromic film and artifacts caused by the scanner and to improve the integrity of the dose information. Multichannel dosimetry also reduces random noise in the dose images and mitigates scanner-related artifacts such as lateral position dependence. In providing an ability to calculate dose maps from data in
Palmans, Hugo; Nafaa, Laila; De, Jans Jo; Gillis, Sofie; Hoornaert, Marie-Thérèse; Martens, Chantal; Piessens, Marleen; Thierens, Hubert; Van der Plaetsen, Ann; Vynckier, Stefaan
2002-02-07
In recent years, a change has been proposed from air kerma based reference dosimetry to absorbed dose based reference dosimetry for all radiotherapy beams of ionizing radiation. In this paper, a dosimetry study is presented in which absorbed dose based dosimetry using recently developed formalisms was compared with air kerma based dosimetry using older formalisms. Three ionization chambers of each of three different types were calibrated in terms of absorbed dose to water and air kerma and sent to five hospitals. There, reference dosimetry with all the chambers was performed in a total of eight high-energy clinical photon beams. The selected chamber types were the NE2571, the PTW-30004 and the Wellhöfer-FC65G (previously Wellhöfer-IC70). Having a graphite wall, they exhibit a stable volume and the presence of an aluminium electrode ensures the robustness of these chambers. The data were analysed with the most important recommendations for clinical dosimetry: IAEA TRS-398, AAPM TG-51, IAEA TRS-277, NCS report-2 (presently recommended in Belgium) and AAPM TG-21. The necessary conversion factors were taken from those protocols, or calculated using the data in the different protocols if data for a chamber type are lacking. Polarity corrections were within 0.1% for all chambers in all beams. Recombination corrections were consistent with theoretical predictions, did not vary within a chamber type and only slightly between different chamber types. The maximum chamber-to-chamber variations of the dose obtained with the different formalisms within the same chamber type were between 0.2% and 0.6% for the NE2571, between 0.2% and 0.6% for the PTW-30004 and 0.1% and 0.3% for the Wellhöfer-FC65G for the different beams. The absorbed dose results for the NE2571 and Wellhöfer-FC65G chambers were in good agreement for all beams and all formalisms. The PTW-30004 chambers gave a small but systematically higher result compared to the result for the NE2571 chambers (on the
Statistical analysis on experimental calibration data for flowmeters in pressure pipes
NASA Astrophysics Data System (ADS)
Lazzarin, Alessandro; Orsi, Enrico; Sanfilippo, Umberto
2017-08-01
This paper shows a statistical analysis on experimental calibration data for flowmeters (i.e.: electromagnetic, ultrasonic, turbine flowmeters) in pressure pipes. The experimental calibration data set consists of the whole archive of the calibration tests carried out on 246 flowmeters from January 2001 to October 2015 at Settore Portate of Laboratorio di Idraulica “G. Fantoli” of Politecnico di Milano, that is accredited as LAT 104 for a flow range between 3 l/s and 80 l/s, with a certified Calibration and Measurement Capability (CMC) - formerly known as Best Measurement Capability (BMC) - equal to 0.2%. The data set is split into three subsets, respectively consisting in: 94 electromagnetic, 83 ultrasonic and 69 turbine flowmeters; each subset is analysed separately from the others, but then a final comparison is carried out. In particular, the main focus of the statistical analysis is the correction C, that is the difference between the flow rate Q measured by the calibration facility (through the accredited procedures and the certified reference specimen) minus the flow rate QM contemporarily recorded by the flowmeter under calibration, expressed as a percentage of the same QM .
Radiation dosimetry for quality control of food preservation and disinfestation
NASA Astrophysics Data System (ADS)
McLaughlin, W. L.; Miller, A.; Uribe, R. M.
In the use of x and gamma rays and scanned electron beams to extend the shelf life of food by delay of sprouting and ripening, killing of microbes, and control of insect population, quality assurance is provided by standardized radiation dosimetry. By strategic placement of calibrated dosimeters that are sufficiently stable and reproducible, it is possible to monitor minimum and maximum radiation absorbed dose levels and dose uniformity for a given processed foodstuff. The dosimetry procedure is especially important in the commisioning of a process and in making adjustments of process parameters (e.g. conveyor speed) to meet changes that occur in product and source parameters (e.g. bulk density and radiation spectrum). Routine dosimetry methods and certain corrections of dosimetry data may be selected for the radiations used in typical food processes.
ERIC Educational Resources Information Center
Cole, James S.; Cole, Shu T.
2008-01-01
There has been a great deal of debate regarding the value of program accreditation. Two research questions guided this study: 1) are students enrolled in accredited parks, recreation, and leisure programs more academically engaged than students enrolled in non-accredited programs, and 2) do students enrolled in accredited parks, recreation, and…
ERIC Educational Resources Information Center
National Association of Private, Nontraditional Schools and Colleges, Grand Junction, CO.
Questions and answers concerning accreditation of postsecondary institutions are presented, along with a list of personal/organizational sources and bibliographical sources of information. Information is provided on the following: accreditation and its origin, the Council on Postsecondary Accreditation, the U.S. Department of Education, the…
Duch, M A; Ginjaume, M; Chakkor, H; Ortega, X; Jornet, N; Ribas, M
1998-06-01
In total body irradiation (TBI) treatments in vivo dosimetry is recommended because it makes it possible to ensure the accuracy and quality control of dose delivery. The aim of this work is to set up an in vivo thermoluminescence dosimetry (TLD) system to measure the dose distribution during the TBI technique used prior to bone marrow transplant. Some technical problems due to the presence of lung shielding blocks are discussed. Irradiations were performed in the Hospital de la Santa Creu i Sant Pau by means of a Varian Clinac-1800 linear accelerator with 18 MV X-ray beams. Different TLD calibration experiments were set up to optimize in vivo dose assessment and to analyze the influence on dose measurement of shielding blocks. An algorithm to estimate midplane doses from entrance and exit doses is proposed and the estimated dose in critical organs is compared to internal dose measurements performed in an Alderson anthropomorphic phantom. The predictions of the dose algorithm, even in heterogeneous zones of the body such as the lungs, are in good agreement with the experimental results obtained with and without shielding blocks. The differences between measured and predicted values are in all cases lower than 2%. The TLD system described in this work has been proven to be appropriate for in vivo dosimetry in TBI irradiations. The described calibration experiments point out the difficulty of calibrating an in vivo dosimetry system when lung shielding blocks are used.
Improving the accuracy of ionization chamber dosimetry in small megavoltage x-ray fields
NASA Astrophysics Data System (ADS)
McNiven, Andrea L.
The dosimetry of small x-ray fields is difficult, but important, in many radiation therapy delivery methods. The accuracy of ion chambers for small field applications, however, is limited due to the relatively large size of the chamber with respect to the field size, leading to partial volume effects, lateral electronic disequilibrium and calibration difficulties. The goal of this dissertation was to investigate the use of ionization chambers for the purpose of dosimetry in small megavoltage photon beams with the aim of improving clinical dose measurements in stereotactic radiotherapy and helical tomotherapy. A new method for the direct determination of the sensitive volume of small-volume ion chambers using micro computed tomography (muCT) was investigated using four nominally identical small-volume (0.56 cm3) cylindrical ion chambers. Agreement between their measured relative volume and ionization measurements (within 2%) demonstrated the feasibility of volume determination through muCT. Cavity-gas calibration coefficients were also determined, demonstrating the promise for accurate ion chamber calibration based partially on muCT. The accuracy of relative dose factor measurements in 6MV stereotactic x-ray fields (5 to 40mm diameter) was investigated using a set of prototype plane-parallel ionization chambers (diameters of 2, 4, 10 and 20mm). Chamber and field size specific correction factors ( CSFQ ), that account for perturbation of the secondary electron fluence, were calculated using Monte Carlo simulation methods (BEAM/EGSnrc simulations). These correction factors (e.g. CSFQ = 1.76 (2mm chamber, 5mm field) allow for accurate relative dose factor (RDF) measurement when applied to ionization readings, under conditions of electronic disequilibrium. With respect to the dosimetry of helical tomotherapy, a novel application of the ion chambers was developed to characterize the fan beam size and effective dose rate. Characterization was based on an adaptation of the
Direct megavoltage photon calibration service in Australia
Ramanathan, G.; Oliver, C.; Cole, A.; Lye, J.; Harty, P. D.; Wright, T.; Webb, D. V.; Followill, D. S.
2014-01-01
The Australian Radiation Protection and Nuclear Safety Agency (ARPANSA) maintains the Australian primary standard of absorbed dose. Until recently, the standard was used to calibrate ionisation chambers only in 60Co gamma rays. These chambers are then used by radiotherapy clinics to determine linac output, using a correction factor (kQ) to take into account the different spectra of 60Co and the linac. Over the period 2010–2013, ARPANSA adapted the primary standard to work in megavoltage linac beams, and has developed a calibration service at three photon beams (6, 10 and 18 MV) from an Elekta Synergy linac. We describe the details of the new calibration service, the method validation and the use of the new calibration factors with the International Atomic Energy Agency’s TRS-398 dosimetry Code of Practice. The expected changes in absorbed dose measurements in the clinic when shifting from 60Co to the direct calibration are determined. For a Farmer chamber (model 2571), the measured chamber calibration coefficient is expected to be reduced by 0.4, 1.0 and 1.1 % respectively for these three beams when compared to the factor derived from 60Co. These results are in overall agreement with international absorbed dose standards and calculations by Muir and Rogers in 2010 of kQ factors using Monte Carlo techniques. The reasons for and against moving to the new service are discussed in the light of the requirements of clinical dosimetry. PMID:25146559
Components of laboratory accreditation.
Royal, P D
1995-12-01
Accreditation or certification is a recognition given to an operation or product that has been evaluated against a standard; be it regulatory or voluntary. The purpose of accreditation is to provide the consumer with a level of confidence in the quality of operation (process) and the product of an organization. Environmental Protection Agency/OCM has proposed the development of an accreditation program under National Environmental Laboratory Accreditation Program for Good Laboratory Practice (GLP) laboratories as a supplement to the current program. This proposal was the result of the Inspector General Office reports that identified weaknesses in the current operation. Several accreditation programs can be evaluated and common components identified when proposing a structure for accrediting a GLP system. An understanding of these components is useful in building that structure. Internationally accepted accreditation programs provide a template for building a U.S. GLP accreditation program. This presentation will discuss the traditional structure of accreditation as presented in the Organization of Economic Cooperative Development/GLP program, ISO-9000 Accreditation and ISO/IEC Guide 25 Standard, and the Canadian Association for Environmental Analytical Laboratories, which has a biological component. Most accreditation programs are managed by a recognized third party, either privately or with government oversight. Common components often include a formal review of required credentials to evaluate organizational structure, a site visit to evaluate the facility, and a performance evaluation to assess technical competence. Laboratory performance is measured against written standards and scored. A formal report is then sent to the laboratory indicating accreditation status. Usually, there is a scheduled reevaluation built into the program. Fee structures vary considerably and will need to be examined closely when building a GLP program.
A method to improve the effectiveness of diode in vivo dosimetry.
Alecu, R; Alecu, M; Ochran, T G
1998-05-01
A routine diode in vivo dosimetry program based on a combination of entrance and exit dose measurements was clinically implemented in the radiation oncology department of Grace Hospital, Detroit, in January 1995. The delivered dose has been monitored by taking weekly measurements. The calibration of the diodes and the in vivo dosimetry protocol for this new, more effective type of dose verification is presented. The problems encountered within the program are discussed along with our solutions.
A Threat to Accreditation: Defamation Judgment against an Accreditation Team Member.
ERIC Educational Resources Information Center
Flygare, Thomas J.
1980-01-01
Delaware Law School founder Alfred Avins successfully sued accreditation team member James White for defamation as a result of comments made in 1974 and 1975. An appeals brief claims Avins was a "public figure," that he consented to accreditation, and that the accreditation process deserves court protection against such suits. (PGD)
Comparison of TLD calibration methods for 192Ir dosimetry
Butler, Duncan J.; Wilfert, Lisa; Ebert, Martin A.; Todd, Stephen P.; Hayton, Anna J.M.; Kron, Tomas
2013-01-01
For the purpose of dose measurement using a high‐dose rate 192Ir source, four methods of thermoluminescent dosimeter (TLD) calibration were investigated. Three of the four calibration methods used the 192Ir source. Dwell times were calculated to deliver 1 Gy to the TLDs irradiated either in air or water. Dwell time calculations were confirmed by direct measurement using an ionization chamber. The fourth method of calibration used 6 MV photons from a medical linear accelerator, and an energy correction factor was applied to account for the difference in sensitivity of the TLDs in 192Ir and 6 M V. The results of the four TLD calibration methods are presented in terms of the results of a brachytherapy audit where seven Australian centers irradiated three sets of TLDs in a water phantom. The results were in agreement within estimated uncertainties when the TLDs were calibrated with the 192Ir source. Calibrating TLDs in a phantom similar to that used for the audit proved to be the most practical method and provided the greatest confidence in measured dose. When calibrated using 6 MV photons, the TLD results were consistently higher than the 192Ir−calibrated TLDs, suggesting this method does not fully correct for the response of the TLDs when irradiated in the audit phantom. PACS number: 87 PMID:23318392
Research performance of AACSB accredited institutions in Taiwan: before versus after accreditation.
Ke, Shih-Wen; Lin, Wei-Chao; Tsai, Chih-Fong
2016-01-01
More and more universities are receiving accreditation from the Association to Advance Collegiate Schools of Business (AACSB), which is an international association for promoting quality teaching and learning at business schools. To be accredited, the schools are required to meet a number of standards ensuring that certain levels of teaching quality and students' learning are met. However, there are a variety of points of view espoused in the literature regarding the relationship between research and teaching, some studies have demonstrated that research and teaching these are complementary elements of learning, but others disagree with these findings. Unlike past such studies, we focus on analyzing the research performance of accredited schools during the period prior to and after receiving accreditation. The objective is to answer the question as to whether performance has been improved by comparing the same school's performance before and after accreditation. In this study, four AACSB accredited universities in Taiwan are analyzed, including one teaching oriented and three research oriented universities. Research performance is evaluated by comparing seven citation statistics, the number of papers published, number of citations, average number of citations per paper, average citations per year, h-index (annual), h-index, and g-index. The analysis results show that business schools demonstrated enhanced research performance after AACSB accreditation, but in most accredited schools the proportion of faculty members not actively doing research is larger than active ones. This study shows that the AACSB accreditation has a positive impact on research performance. The findings can be used as a reference for current non-accredited schools whose research goals are to improve their research productivity and quality.
Accreditation's Legal Landscape
ERIC Educational Resources Information Center
Graca, Thomas J.
2009-01-01
Like most issues in higher education, the accreditation paradigm in the United States is defined in large measure by the legal and political climate in which the academy finds itself. In the case of accreditation in particular, the legal substrate is of particular importance given the central role of accreditation in a college's ability to receive…
NAEYC Accreditation: The First Decade of NAEYC Accreditation: Growth and Impact on the Field.
ERIC Educational Resources Information Center
Bredekamp, Sue; Glowacki, Stephanie
1996-01-01
Describes development of NAEYC accreditation and offers a description of the process. Highlights the effects of accreditation and discusses its future. Notes that accreditation provides opportunities and motivation for valuable professional development, and that quality control is the greatest challenge faced by accreditation efforts. Notes…
Surviving Accreditation: A QIAS Ideas Bank. Accreditation and Beyond Series, Volume I.
ERIC Educational Resources Information Center
Ferry, Jan
This publication provides information on the accreditation process for early childhood education and care providers participating in the Quality Improvement and Accreditation System (QIAS), developed by the National Childcare Accreditation Council of Australia. The publication is divided into sections corresponding to steps in the…
Proficiency Testing Activities of Frequency Calibration Laboratories in Taiwan, 2009
2009-11-01
cht.com.tw Abstract In order to meet the requirements of ISO 17025 and the demand of TAF (Taiwan Accreditation Foundation) for calibration inter... IEC 17025 General requirements for the competence of testing and calibration laboratories. The proficiency testing results are then important...on-site evaluation, an assessment team is organized to examine the technical competence of the labs and their compliance with the requirements of ISO
de Paiva, Anderson Paulo
2018-01-01
This research evaluates the influence of the Brazilian accreditation methodology on the sustainability of the organizations. Critical factors for implementing accreditation were also examined, including measuring the relationships established between these factors in the organization sustainability. The present study was developed based on the survey methodology applied in the organizations accredited by ONA (National Accreditation Organization); 288 responses were received from the top level managers. The analysis of quantitative data of the measurement models was made with factorial analysis from principal components. The final model was evaluated from the confirmatory factorial analysis and structural equation modeling techniques. The results from the research are vital for the definition of factors that interfere in the accreditation processes, providing a better understanding for accredited organizations and for Brazilian accreditation. PMID:29599939
ERIC Educational Resources Information Center
Jiaju, Bi
2009-01-01
Among engineering degree programs at the bachelor's level in China, civil engineering was the first one accredited in accordance with a professional programmatic accreditation system comparable to that of international practice. Launched in 1994, the accreditation of civil engineering aimed high and toward international standards and featured the…
Why Become Pharmacy Compounding Accreditation Board Accredited?
Dillon, L Rad
2016-01-01
The Pharmacy Compounding Accreditation Board's goal is to assist pharmacies to obtain formal recognition of their status as a high-quality and fully compliant provider of pharmaceuticals and patient services. This article provides a brief outline of the application process, the survey preparation, points of information about the actual survey, and suggestions on how to remain in compliance with Pharmacy Compounding Accreditation Board's standards. Copyright© by International Journal of Pharmaceutical Compounding, Inc.
Indirect check of the stability of the reference ion chamber used for accelerator output calibration
NASA Astrophysics Data System (ADS)
Kang, Sei-Kwon; Yoon, Jai-Woong; Park, Soah; Hwang, Taejin; Cheong, Kwang-Ho; Han, Tae Jin; Kim, Haeyoung; Lee, Me-Yeon; Kim, Kyoung Ju; Bae, Hoonsik
2014-11-01
A linear accelerator's output is periodically checked by using a reference ion chamber which is also periodically calibrated at the accredited standard dosimetry laboratories. We suggest a simple procedure for checking the chamber's stability between calibrations by comparison with another ion chamber. To identify the long-term stability of chambers, we collected and assessed the dose-to-water conversion factors provided by standard laboratories for three chambers during a period of four years. To develop the chamber constancy check program, we used one Farmer-type reference ion chamber FC65-G, two ion chambers (CC13a and CC13b) and one CC01 ion chamber (IBA). Under the accelerator, each chamber was placed inside the solid phantom and irradiated; the experimental configurations were identical. To check the variation in charge collection of the reference chamber, we monitored the ratios of the FC65-G values over each chamber reading. Based on the error propagation of the two chamber ratios, we estimated the uncertainty of the output calibration from the chamber variation. The calibration factors provided for the three chambers showed 0.04 ˜ 0.12% standard deviations during four years. For procedure development, the reading ratios of FC65-G over CCxx showed very good stability; the ratios of FC65-G over CC13a, CC13b and CC01 varied less than 0.059, 0.087 and 0.248%, respectively, over five measurements. By ascribing possible uncertainties of the ratio to the reference chamber alone, we could conservatively check the stability of the reference chamber for treatment safety. An extension of the chamber calibration period was also evaluated. In conclusion, we designed a stability check procedure for the reference chamber based on a reading ratio of two chambers. This could help the user assess the chamber stability between periodic chamber calibration, and the associated patient treatment could be carried out with enhanced safety.
Evaluation of radiochromic gel dosimetry and polymer gel dosimetry in a clinical dose verification
NASA Astrophysics Data System (ADS)
Vandecasteele, Jan; De Deene, Yves
2013-09-01
A quantitative comparison of two full three-dimensional (3D) gel dosimetry techniques was assessed in a clinical setting: radiochromic gel dosimetry with an in-house developed optical laser CT scanner and polymer gel dosimetry with magnetic resonance imaging (MRI). To benchmark both gel dosimeters, they were exposed to a 6 MV photon beam and the depth dose was compared against a diamond detector measurement that served as golden standard. Both gel dosimeters were found accurate within 4% accuracy. In the 3D dose matrix of the radiochromic gel, hotspot dose deviations up to 8% were observed which are attributed to the fabrication procedure. The polymer gel readout was shown to be sensitive to B0 field and B1 field non-uniformities as well as temperature variations during scanning. The performance of the two gel dosimeters was also evaluated for a brain tumour IMRT treatment. Both gel measured dose distributions were compared against treatment planning system predicted dose maps which were validated independently with ion chamber measurements and portal dosimetry. In the radiochromic gel measurement, two sources of deviations could be identified. Firstly, the dose in a cluster of voxels near the edge of the phantom deviated from the planned dose. Secondly, the presence of dose hotspots in the order of 10% related to inhomogeneities in the gel limit the clinical acceptance of this dosimetry technique. Based on the results of the micelle gel dosimeter prototype presented here, chemical optimization will be subject of future work. Polymer gel dosimetry is capable of measuring the absolute dose in the whole 3D volume within 5% accuracy. A temperature stabilization technique is incorporated to increase the accuracy during short measurements, however keeping the temperature stable during long measurement times in both calibration phantoms and the volumetric phantom is more challenging. The sensitivity of MRI readout to minimal temperature fluctuations is demonstrated which
Is gerontology ready for accreditation?
Haley, William E; Ferraro, Kenneth F; Montgomery, Rhonda J V
2012-01-01
The authors review widely accepted criteria for program accreditation and compare gerontology with well-established accredited fields including clinical psychology and social work. At present gerontology lacks many necessary elements for credible professional accreditation, including defined scope of practice, applied curriculum, faculty with applied professional credentials, and resources necessary to support professional credentialing review. Accreditation with weak requirements will be dismissed as "vanity" accreditation, and strict requirements will be impossible for many resource-poor programs to achieve, putting unaccredited programs at increased risk for elimination. Accreditation may be appropriate in the future, but it should be limited to professional or applied gerontology, perhaps for programs conferring bachelor's or master's degrees. Options other than accreditation to enhance professional skills and employability of gerontology graduates are discussed.
SU-D-BRC-04: Development of Proton Tissue Equivalent Materials for Calibration and Dosimetry Studies
DOE Office of Scientific and Technical Information (OSTI.GOV)
Olguin, E; Flampouri, S; Lipnharski, I
Purpose: To develop new proton tissue equivalent materials (PTEM), urethane and fiberglass based, for proton therapy calibration and dosimetry studies. Existing tissue equivalent plastics are applicable only for x-rays because they focus on matching mass attenuation coefficients. This study aims to create new plastics that match mass stopping powers for proton therapy applications instead. Methods: New PTEMs were constructed using urethane and fiberglass resin materials for soft, fat, bone, and lung tissue. The stoichiometric analysis method was first used to determine the elemental composition of each unknown constituent. New initial formulae were then developed for each of the 4 PTEMsmore » using the new elemental compositions and various additives. Samples of each plastic were then created and exposed to a well defined proton beam at the UF Health Proton Therapy Institute (UFHPTI) to validate its mass stopping power. Results: The stoichiometric analysis method revealed the elemental composition of the 3 components used in creating the PTEMs. These urethane and fiberglass based resins were combined with additives such as calcium carbonate, aluminum hydroxide, and phenolic micro spheres to achieve the desired mass stopping powers and densities. Validation at the UFHPTI revealed adjustments had to be made to the formulae, but the plastics eventually had the desired properties after a few iterations. The mass stopping power, density, and Hounsfield Unit of each of the 4 PTEMs were within acceptable tolerances. Conclusion: Four proton tissue equivalent plastics were developed: soft, fat, bone, and lung tissue. These plastics match each of the corresponding tissue’s mass stopping power, density, and Hounsfield Unit, meaning they are truly tissue equivalent for proton therapy applications. They can now be used to calibrate proton therapy treatment planning systems, improve range uncertainties, validate proton therapy Monte Carlo simulations, and assess in-field and
The ENEA neutron personal dosimetry service.
Morelli, B; Mariotti, F; Fantuzzi, E
2006-01-01
The ENEA Radiation Protection Institute has been operating the only neutron personal dosimetry service in Italy since the 1970s. Since the 1980s the service has been based on PADC (poly allyl diglycol carbonate) for fast neutron dosimetry, while thermal neutron dosimetry has been performed using thermoluminescence (TL) dosemeters. Since the service was started, a number of aspects have undergone evolution. The latest and most important changes are as follows: in 1998 a new PADC material was introduced in routine, since 2001 TL thermal dosimetry has been based on LiF(Mg,Cu,P) [GR-200] and (7)LiF(Mg,Cu,P) [GR-207] detectors and since 2003 a new image analysis reading system for the fast neutron dosemeters has been used. Herein an updated summary of how the service operates and performs today is presented. The approaches to calibration and traceability to estimate the quantity of H(p)(10) are mentioned. Results obtained at the performance test of dosimetric services in the EU member states and Switzerland sponsored by the European Commission and organised by Eurados in 1999 are reported. Last but not least, quality assurance (QA) procedures introduced in the routine operation to track the whole process of dose evaluation (i.e. plastic QA, acceptance test, test etching bath reproducibility and 'dummy customer' (blind test) for each issuing monitoring period) are presented and discussed.
In vivo light dosimetry for pleural PDT
NASA Astrophysics Data System (ADS)
Dimofte, Andreea; Zhu, Timothy C.; Finlay, Jarod C.; Culligan, Melissa; Edmonds, Christine E.; Friedberg, Joseph S.; Cengel, Keith; Hahn, Stephen M.
2009-02-01
In-vivo light Dosimetry for patients undergoing photodynamic therapy (PDT) is one of the important dosimetry quantities critical for predicting PDT outcome. This study examines the light fluence (rate) delivered to patients undergoing pleural PDT as a function of treatment time, treatment volume and surface area, and its accuracy as a function of the calibration accuracies of each isotropic detector and the calibration integrating sphere. The patients studied here were enrolled in Phase II clinical trial of Photofrin-mediated PDT for the treatment of non-small cell lung cancer with pleural effusion. The ages of the patients studied varied from 34 to 69 year old. All patients were administered 2mg per kg body weight Photoprin 24 hours before the surgery. Patients undergoing photodynamic therapy (PDT) are treated with laser light with a light fluence of 60 J/cm^2 at 630nm. Fluence rate (mW/cm^2) and cumulative fluence (J/cm^2) was monitored at 7 different sites during the entire light treatment delivery. Isotropic detectors were used for in-vivo light dosimetry. The anisotropy of each isotropic detector was found to be within 30%. The mean fluence rate delivery varied from 37.84 to 94.05 mW/cm^2 and treatment time varied from 1762 to 5232s. We have established a correlation between the treatment time and the treatment volume. The results are discussed using an integrating sphere theory and the measured tissue optical properties. The result can be used as a clinical guideline for future pleural PDT treatment.
ERIC Educational Resources Information Center
Eaton, Judith S.
2012-01-01
Accreditation, the primary means of assuring and improving academic quality in U.S. higher education, has endured for more than 100 years. While accommodating many changes in higher education and society, accreditation's fundamental values and practices have remained essentially intact, affirming their sturdiness. Accreditation is a form of…
Monteiro, Erinn; Fisher, Jessica Solomon; Daub, Teresa; Zamperetti, Michelle Chuk
2014-01-01
Health departments have various unique needs that must be addressed in preparing for national accreditation. These needs require time and resources, shortages that many health departments face. The Accreditation Support Initiative's goal was to test the assumption that even small amounts of dedicated funding can help health departments make important progress in their readiness to apply for and achieve accreditation. Participating sites' scopes of work were unique to the needs of each site and based on the proposed activities outlined in their applications. Deliverables and various sources of data were collected from sites throughout the project period (December 2011-May 2012). Awardees included 1 tribal and 12 local health departments, as well as 5 organizations supporting the readiness of local and tribal health departments. Sites dedicated their funding toward staff time, accreditation fees, completion of documentation, and other accreditation readiness needs and produced a number of deliverables and example documents. All sites indicated that they made accreditation readiness gains that would not have occurred without this funding. Preliminary evaluation data from the first year of the Accreditation Support Initiative indicate that flexible funding arrangements may be an effective way to increase health departments' accreditation readiness.
Braithwaite, Jeffrey; Westbrook, Johanna; Johnston, Brian; Clark, Stephen; Brandon, Mark; Banks, Margaret; Hughes, Clifford; Greenfield, David; Pawsey, Marjorie; Corbett, Angus; Georgiou, Andrew; Callen, Joanne; Ovretveit, John; Pope, Catherine; Suñol, Rosa; Shaw, Charles; Debono, Deborah; Westbrook, Mary; Hinchcliff, Reece; Moldovan, Max
2011-10-09
Service accreditation is a structured process of recognising and promoting performance and adherence to standards. Typically, accreditation agencies either receive standards from an authorized body or develop new and upgrade existing standards through research and expert views. They then apply standards, criteria and performance indicators, testing their effects, and monitoring compliance with them. The accreditation process has been widely adopted. The international investments in accreditation are considerable. However, reliable evidence of its efficiency or effectiveness in achieving organizational improvements is sparse and the value of accreditation in cost-benefit terms has yet to be demonstrated. Although some evidence suggests that accreditation promotes the improvement and standardization of care, there have been calls to strengthen its research base.In response, the ACCREDIT (Accreditation Collaborative for the Conduct of Research, Evaluation and Designated Investigations through Teamwork) project has been established to evaluate the effectiveness of Australian accreditation in achieving its goals. ACCREDIT is a partnership of key researchers, policymakers and agencies. We present the framework for our studies in accreditation. Four specific aims of the ACCREDIT project, which will direct our findings, are to: (i) evaluate current accreditation processes; (ii) analyse the costs and benefits of accreditation; (iii) improve future accreditation via evidence; and (iv) develop and apply new standards of consumer involvement in accreditation. These will be addressed through 12 interrelated studies designed to examine specific issues identified as a high priority. Novel techniques, a mix of qualitative and quantitative methods, and randomized designs relevant for health-care research have been developed. These methods allow us to circumvent the fragmented and incommensurate findings that can be generated in small-scale, project-based studies. The overall
Pajic, J; Rakic, B; Jovicic, D; Milovanovic, A
2014-10-01
Biological dosimetry using chromosome damage biomarkers is a valuable dose assessment method in cases of radiation overexposure with or without physical dosimetry data. In order to estimate dose by biodosimetry, any biological dosimetry service have to have its own dose response calibration curve. This paper reveals the results obtained after irradiation of blood samples from fourteen healthy male and female volunteers in order to establish biodosimetry in Serbia and produce dose response calibration curves for dicentrics and micronuclei. Taking into account pooled data from all the donors, the resultant fitted curve for dicentrics is: Ydic=0.0009 (±0.0003)+0.0421 (±0.0042)×D+0.0602 (±0.0022)×D(2); and for micronuclei: Ymn=0.0104 (±0.0015)+0.0824 (±0.0050)×D+0.0189 (±0.0017)×D(2). Following establishment of the dose response curve, a validation experiment was carried out with four blood samples. Applied and estimated doses were in good agreement. On this basis, the results reported here give us confidence to apply both calibration curves for future biological dosimetry requirements in Serbia. Copyright © 2014 Elsevier B.V. All rights reserved.
Brown, Scott C; Wang, Kefeng; Dong, Chuanhui; Farrell, Mary Beth; Heller, Gary V; Gornik, Heather L; Hutchisson, Marge; Needleman, Laurence; Benenati, James F; Jaff, Michael R; Meier, George H; Perese, Susana; Bendick, Phillip; Hamburg, Naomi M; Lohr, Joann M; LaPerna, Lucy; Leers, Steven A; Lilly, Michael P; Tegeler, Charles; Katanick, Sandra L; Alexandrov, Andrei V; Siddiqui, Adnan H; Rundek, Tatjana
2016-09-01
Accreditation of cerebrovascular ultrasound laboratories by the Intersocietal Accreditation Commission (IAC) and equivalent organizations is supported by the Joint Commission certification of stroke centers. Limited information exists on the accreditation status and geographic distribution of cerebrovascular testing facilities in the United States. Our study objectives were to identify the proportion of IAC-accredited outpatient cerebrovascular testing facilities used by Medicare beneficiaries, describe their geographic distribution, and identify variations in cerebrovascular testing procedure types and volumes by accreditation status. As part of the VALUE (Vascular Accreditation, Location, and Utilization Evaluation) Study, we examined the proportion of IAC-accredited facilities that conducted cerebrovascular testing in a 5% Centers for Medicare and Medicaid Services random Outpatient Limited Data Set in 2011 and investigated their geographic distribution using geocoding. Among 7327 outpatient facilities billing Medicare for cerebrovascular testing, only 22% (1640) were IAC accredited. The proportion of IAC-accredited cerebrovascular testing facilities varied by region (χ(2)[3] = 177.1; P < .0001), with 29%, 15%, 13%, and 10% located in the Northeast, South, Midwest, and West, respectively. However, of the total number of cerebrovascular outpatient procedures conducted in 2011 (38,555), 40% (15,410) were conducted in IAC-accredited facilities. Most cerebrovascular testing procedures were carotid duplex, with 40% of them conducted in IAC-accredited facilities. The proportion of facilities conducting outpatient cerebrovascular testing accredited by the IAC is low and varies by region. The growing number of certified stroke centers should be accompanied by more accredited outpatient vascular testing facilities, which could potentially improve the quality of stroke care.
... 83702 208-343-2079 Accredited Since June 2013 Tree of Life Birth & Gynecology Deland In-Process 125 ... 32720 386-279-0145 In-Process of Accreditation Tree of Life Birth & Gynecology Orlando In-Process 1010 ...
ISO/IEC 17025 laboratory accreditation of NRC Acoustical Standards Program
NASA Astrophysics Data System (ADS)
Wong, George S. K.; Wu, Lixue; Hanes, Peter; Ohm, Won-Suk
2004-05-01
Experience gained during the external accreditation of the Acoustical Standards Program at the Institute for National Measurement Standards of the National Research Council is discussed. Some highlights include the preparation of documents for calibration procedures, control documents with attention to reducing future paper work and the need to maintain documentation or paper trails to satisfy the external assessors. General recommendations will be given for laboratories that are contemplating an external audit in accordance to the requirements of ISO/IEC 17025.
[Accreditation of medical laboratories].
Horváth, Andrea Rita; Ring, Rózsa; Fehér, Miklós; Mikó, Tivadar
2003-07-27
In Hungary, the National Accreditation Body was established by government in 1995 as an independent, non-profit organization, and has exclusive rights to accredit, amongst others, medical laboratories. The National Accreditation Body has two Specialist Advisory Committees in the health care sector. One is the Health Care Specialist Advisory Committee that accredits certifying bodies, which deal with certification of hospitals. The other Specialist Advisory Committee for Medical Laboratories is directly involved in accrediting medical laboratory services of health care institutions. The Specialist Advisory Committee for Medical Laboratories is a multidisciplinary peer review group of experts from all disciplines of in vitro diagnostics, i.e. laboratory medicine, microbiology, histopathology and blood banking. At present, the only published International Standard applicable to laboratories is ISO/IEC 17025:1999. Work has been in progress on the official approval of the new ISO 15189 standard, specific to medical laboratories. Until the official approval of the International Standard ISO 15189, as accreditation standard, the Hungarian National Accreditation Body has decided to progress with accreditation by formulating explanatory notes to the ISO/IEC 17025:1999 document, using ISO/FDIS 15189:2000, the European EC4 criteria and CPA (UK) Ltd accreditation standards as guidelines. This harmonized guideline provides 'explanations' that facilitate the application of ISO/IEC 17025:1999 to medical laboratories, and can be used as a checklist for the verification of compliance during the onsite assessment of the laboratory. The harmonized guideline adapted the process model of ISO 9001:2000 to rearrange the main clauses of ISO/IEC 17025:1999. This rearrangement does not only make the guideline compliant with ISO 9001:2000 but also improves understanding for those working in medical laboratories, and facilitates the training and education of laboratory staff. With the
Measuring Systems for Thermometer Calibration in Low-Temperature Range
NASA Astrophysics Data System (ADS)
Szmyrka-Grzebyk, A.; Lipiński, L.; Manuszkiewicz, H.; Kowal, A.; Grykałowska, A.; Jancewicz, D.
2011-12-01
The national temperature standard for the low-temperature range between 13.8033 K and 273.16 K has been established in Poland at the Institute of Low Temperature and Structure Research (INTiBS). The standard consists of sealed cells for realization of six fixed points of the International Temperature Scale of 1990 (ITS-90) in the low-temperature range, an adiabatic cryostat and Isotech water and mercury triple-point baths, capsule standard resistance thermometers (CSPRT), and AC and DC bridges with standard resistors for thermometers resistance measurements. INTiBS calibrates CSPRTs at the low-temperature fixed points with uncertainties less than 1 mK. In lower temperature range—between 2.5 K and about 25 K — rhodium-iron (RhFe) resistance thermometers are calibrated by comparison with a standard which participated in the EURAMET.T-K1.1 comparison. INTiBS offers a calibration service for industrial platinum resistance thermometers and for digital thermometers between 77 K and 273 K. These types of thermometers may be calibrated at INTiBS also in a higher temperature range up to 550°C. The Laboratory of Temperature Standard at INTiBS acquired an accreditation from the Polish Centre for Accreditation. A management system according to EN ISO/IEC 17025:2005 was established at the Laboratory and presented on EURAMET QSM Forum.
Accreditation of ambulatory facilities.
Urman, Richard D; Philip, Beverly K
2014-06-01
With the continued growth of ambulatory surgical centers (ASC), the regulation of facilities has evolved to include new standards and requirements on both state and federal levels. Accreditation allows for the assessment of clinical practice, improves accountability, and better ensures quality of care. In some states, ASC may choose to voluntarily apply for accreditation from a recognized organization, but in others it is mandated. Accreditation provides external validation of safe practices, benchmarking performance against other accredited facilities, and demonstrates to patients and payers the facility's commitment to continuous quality improvement. Copyright © 2014 Elsevier Inc. All rights reserved.
ERIC Educational Resources Information Center
Council for Higher Education Accreditation, 2012
2012-01-01
This fact sheet presents data provided to the Council for Higher Education Accreditation (CHEA) by accrediting organizations for accrediting activity during 2010-2011. It includes both Title IV and Non-Title IV institutions. Data are presented in the following categories: (1) Accrediting Organizations; (2) Fourteen Major For-Profit Higher…
Spelleken, E; Crowe, S B; Sutherland, B; Challens, C; Kairn, T
2018-03-01
Gafchromic EBT3 film is widely used for patient specific quality assurance of complex treatment plans. Film dosimetry techniques commonly involve the use of transmission scanning to produce TIFF files, which are analysed using a non-linear calibration relationship between the dose and red channel net optical density (netOD). Numerous film calibration techniques featured in the literature have not been independently verified or evaluated. A range of previously published film dosimetry techniques were re-evaluated, to identify whether these methods produce better results than the commonly-used non-linear, netOD method. EBT3 film was irradiated at calibration doses between 0 and 4000 cGy and 25 pieces of film were irradiated at 200 cGy to evaluate uniformity. The film was scanned using two different scanners: The Epson Perfection V800 and the Epson Expression 10000XL. Calibration curves, uncertainty in the fit of the curve, overall uncertainty and uniformity were calculated following the methods described by the different calibration techniques. It was found that protocols based on a conventional film dosimetry technique produced results that were accurate and uniform to within 1%, while some of the unconventional techniques produced much higher uncertainties (> 25% for some techniques). Some of the uncommon methods produced reliable results when irradiated to the standard treatment doses (< 400 cGy), however none could be recommended as an efficient or accurate replacement for a common film analysis technique which uses transmission scanning, red colour channel analysis, netOD and a non-linear calibration curve for measuring doses up to 4000 cGy when using EBT3 film.
Cabaleiro, Joe
2007-01-01
A key component of qualifying for accreditation with the Pharmacy Compounding Accreditation Board is having a set of comprehensive standard operating procedures that are being used by the pharmacy staff. The three criteria in standard operating procedures for which the Pharmacy Compounding Accreditation Board looks are: (1)written standard operating procedures; (2)standard operating procedures that reflect what the organization actualy does; and (3) whether the written standard operating procedures are implemented. Following specified steps in the preparation of standard operating procedures will result in procedures that meet Pharmacy Compounding Accreditation Board Requirements, thereby placing pharmacies one step closer to qualifying for accreditation.
Air kerma and absorbed dose standards for reference dosimetry in brachytherapy
2014-01-01
This article reviews recent developments in primary standards for the calibration of brachytherapy sources, with an emphasis on the currently most common photon-emitting radionuclides. The introduction discusses the need for reference dosimetry in brachytherapy in general. The following section focuses on the three main quantities, i.e. reference air kerma rate, air kerma strength and absorbed dose rate to water, which are currently used for the specification of brachytherapy photon sources and which can be realized with primary standards from first principles. An overview of different air kerma and absorbed dose standards, which have been independently developed by various national metrology institutes over the past two decades, is given in the next two sections. Other dosimetry techniques for brachytherapy will also be discussed. The review closes with an outlook on a possible transition from air kerma to absorbed dose to water-based calibrations for brachytherapy sources in the future. PMID:24814696
Clinical Psychology Training: Accreditation and Beyond.
Levenson, Robert W
2017-05-08
Beginning with efforts in the late 1940s to ensure that clinical psychologists were adequately trained to meet the mental health needs of the veterans of World War II, the accreditation of clinical psychologists has largely been the province of the Commission on Accreditation of the American Psychological Association. However, in 2008 the Psychological Clinical Science Accreditation System began accrediting doctoral programs that adhere to the clinical science training model. This review discusses the goals of accreditation and the history of the accreditation of graduate programs in clinical psychology, and provides an overview of the evaluation procedures used by these two systems. Accreditation is viewed against the backdrop of the slow rate of progress in reducing the burden of mental illness and the changes in clinical psychology training that might help improve this situation. The review concludes with a set of five recommendations for improving accreditation.
9 CFR 439.53 - Revocation of accreditation.
Code of Federal Regulations, 2010 CFR
2010-01-01
... ACCREDITATION OF NON-FEDERAL CHEMISTRY LABORATORIES § 439.53 Revocation of accreditation. The accreditation of a laboratory will be revoked for the following reasons: (a) An accredited laboratory that is accredited to.... If the accredited laboratory fails to meet any of the criteria set forth in §§ 439.20(d) and 439.20(h...
DOE Office of Scientific and Technical Information (OSTI.GOV)
Brunner, Claudia C.; Stern, Stanley H.; Chakrabarti, Kish
2013-08-15
Purpose: To measure radiation absorbed dose and its distribution in an anthropomorphic head phantom under clinically representative scan conditions in three widely used computed tomography (CT) scanners, and to relate those dose values to metrics such as high-contrast resolution, noise, and contrast-to-noise ratio (CNR) in the American College of Radiology CT accreditation phantom.Methods: By inserting optically stimulated luminescence dosimeters (OSLDs) in the head of an anthropomorphic phantom specially developed for CT dosimetry (University of Florida, Gainesville), we measured dose with three commonly used scanners (GE Discovery CT750 HD, Siemens Definition, Philips Brilliance 64) at two different clinical sites (Walter Reedmore » National Military Medical Center, National Institutes of Health). The scanners were set to operate with the same data-acquisition and image-reconstruction protocols as used clinically for typical head scans, respective of the practices of each facility for each scanner. We also analyzed images of the ACR CT accreditation phantom with the corresponding protocols. While the Siemens Definition and the Philips Brilliance protocols utilized only conventional, filtered back-projection (FBP) image-reconstruction methods, the GE Discovery also employed its particular version of an adaptive statistical iterative reconstruction (ASIR) algorithm that can be blended in desired proportions with the FBP algorithm. We did an objective image-metrics analysis evaluating the modulation transfer function (MTF), noise power spectrum (NPS), and CNR for images reconstructed with FBP. For images reconstructed with ASIR, we only analyzed the CNR, since MTF and NPS results are expected to depend on the object for iterative reconstruction algorithms.Results: The OSLD measurements showed that the Siemens Definition and the Philips Brilliance scanners (located at two different clinical facilities) yield average absorbed doses in tissue of 42.6 and 43.1 m
Handbook of Accreditation. Second Edition.
ERIC Educational Resources Information Center
North Central Association of Colleges and Schools, Chicago, IL. Commission on Institutions of Higher Education.
This handbook contains accreditation information from the North Central Association of Colleges and Schools Commission on Institutions of Higher Education, including general institutional requirements, criteria for accreditation, and policies on educational change. Chapters include: (1) "Introduction to Voluntary Accreditation and the…
Solid state TL detectors for in vivo dosimetry in brachytherapy.
Gambarini, G; Borroni, M; Grisotto, S; Maucione, A; Cerrotta, A; Fallai, C; Carrara, M
2012-12-01
In vivo dosimetry provides information about the actual dose delivered to the patient treated with radiotherapy and can be adopted within a routinary treatment quality assurance protocol. Aim of this study was to evaluate the feasibility of performing in vivo rectal dosimetry by placing thermoluminescence detectors directly on the transrectal ultrasound probe adopted for on-line treatment planning of high dose rate brachytherapy boosts of prostate cancer patients. A suitable protocol for TLD calibration has been set up. In vivo measurements resulted to be in good agreement with the calculated doses, showing that the proposed method is feasible and returns accurate results. Copyright © 2012 Elsevier Ltd. All rights reserved.
Accreditation of Developmental Disabilities Programs.
ERIC Educational Resources Information Center
Hemp, Richard; Braddock, David
1988-01-01
Data gathered from 296 agency accreditation surveys, conducted by the Accreditation Council on Services for People with Developmental Disabilities, were analyzed, focusing on ownership, services provided, size of residential units, critical standards, characteristics of individuals served, and accreditation outcome. Redundancies between private…
The polyGeVero® software for fast and easy computation of 3D radiotherapy dosimetry data
NASA Astrophysics Data System (ADS)
Kozicki, Marek; Maras, Piotr
2015-01-01
The polyGeVero® software package was elaborated for calculations of 3D dosimetry data such as the polymer gel dosimetry. It comprises four workspaces designed for: i) calculating calibrations, ii) storing calibrations in a database, iii) calculating dose distribution 3D cubes, iv) comparing two datasets e.g. a measured one with a 3D dosimetry with a calculated one with the aid of a treatment planning system. To accomplish calculations the software was equipped with a number of tools such as the brachytherapy isotopes database, brachytherapy dose versus distance calculation based on the line approximation approach, automatic spatial alignment of two 3D dose cubes for comparison purposes, 3D gamma index, 3D gamma angle, 3D dose difference, Pearson's coefficient, histograms calculations, isodoses superimposition for two datasets, and profiles calculations in any desired direction. This communication is to briefly present the main functions of the software and report on the speed of calculations performed by polyGeVero®.
Hospital accreditation: staff experiences and perceptions.
Bogh, Søren Bie; Blom, Ane; Raben, Ditte Caroline; Braithwaite, Jeffrey; Thude, Bettina; Hollnagel, Erik; Plessen, Christian von
2018-06-11
Purpose The purpose of this paper is to understand how staff at various levels perceive and understand hospital accreditation generally and in relation to quality improvement (QI) specifically. Design/methodology/approach In a newly accredited Danish hospital, the authors conducted semi-structured interviews to capture broad ranging experiences. Medical doctors, nurses, a quality coordinator and a quality department employee participated. Interviews were audio recorded and subjected to framework analysis. Findings Staff reported that The Danish Healthcare Quality Programme affected management priorities: office time and working on documentation, which reduced time with patients and on improvement activities. Organisational structures were improved during preparation for accreditation. Staff perceived that the hospital was better prepared for new QI initiatives after accreditation; staff found disease specific requirements unnecessary. Other areas benefited from accreditation. Interviewees expected that organisational changes, owing to accreditation, would be sustained and that the QI focus would continue. Practical implications Accreditation is a critical and complete hospital review, including areas that often are neglected. Accreditation dominates hospital agendas during preparation and surveyor visits, potentially reducing patient care and other QI initiatives. Improvements are less likely to occur in areas that other QI initiatives addressed. Yet, accreditation creates organisational foundations for future QI initiatives. Originality/value The authors study contributes new insights into how hospital staff at different organisational levels perceive and understand accreditation.
42 CFR 8.4 - Accreditation body responsibilities.
Code of Federal Regulations, 2010 CFR
2010-10-01
...) Accreditation surveys and for cause inspections. (1) Accreditation bodies shall conduct routine accreditation surveys for initial, renewal, and continued accreditation of each OTP at least every 3 years. (2... survey of the OTP by the accreditation body otherwise demonstrates one or more deficiencies in the OTP...
42 CFR 8.4 - Accreditation body responsibilities.
Code of Federal Regulations, 2011 CFR
2011-10-01
...) Accreditation surveys and for cause inspections. (1) Accreditation bodies shall conduct routine accreditation surveys for initial, renewal, and continued accreditation of each OTP at least every 3 years. (2... survey of the OTP by the accreditation body otherwise demonstrates one or more deficiencies in the OTP...
NASA Astrophysics Data System (ADS)
Esor, J.; Sudchai, W.; Monthonwattana, S.; Pungkun, V.; Intang, A.
2017-06-01
Based on a new occupational dose limit recommended by ICRP (2011), the annual dose limit for the lens of the eye for workers should be reduced from 150 mSv/y to 20 mSv/y averaged over 5 consecutive years in which no single year exceeding 50 mSv. This new dose limit directly affects radiologists and cardiologists whose work involves high radiation exposure over 20 mSv/y. Eye lens dosimetry (Hp(3)) has become increasingly important and should be evaluated directly based on dosimeters that are worn closely to the eye. Normally, Hp(3) dose algorithm was carried out by the combination of Hp(0.07) and Hp(10) values while dosimeters were calibrated on slab PMMA phantom. Recently, there were three reports from European Union that have shown the conversion coefficients from air kerma to Hp(3). These conversion coefficients carried out by ORAMED, PTB and CEA Saclay projects were performed by using a new cylindrical head phantom. In this study, various delivered doses were calculated using those three conversion coefficients while nanoDot, small OSL dosimeters, were used for Hp(3) measurement. These calibrations were performed with a standard X-ray generator at Secondary Standard Dosimetry Laboratory (SSDL). Delivered doses (Hp(3)) using those three conversion coefficients were compared with Hp(3) from nanoDot measurements. The results showed that percentage differences between delivered doses evaluated from the conversion coefficient of each project and Hp(3) doses evaluated from the nanoDots were found to be not exceeding -11.48 %, -8.85 % and -8.85 % for ORAMED, PTB and CEA Saclay project, respectively.
7 CFR 983.1 - Accredited laboratory.
Code of Federal Regulations, 2011 CFR
2011-01-01
... 7 Agriculture 8 2011-01-01 2011-01-01 false Accredited laboratory. 983.1 Section 983.1 Agriculture..., ARIZONA, AND NEW MEXICO Definitions § 983.1 Accredited laboratory. An accredited laboratory is a laboratory that has been approved or accredited by the U.S. Department of Agriculture. [74 FR 56539, Nov. 2...
42 CFR 8.13 - Revocation of accreditation and accreditation body approval.
Code of Federal Regulations, 2010 CFR
2010-10-01
... 42 Public Health 1 2010-10-01 2010-10-01 false Revocation of accreditation and accreditation body approval. 8.13 Section 8.13 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL PROVISIONS CERTIFICATION OF OPIOID TREATMENT PROGRAMS Certification and Treatment Standards § 8.13...
42 CFR 8.13 - Revocation of accreditation and accreditation body approval.
Code of Federal Regulations, 2013 CFR
2013-10-01
... 42 Public Health 1 2013-10-01 2013-10-01 false Revocation of accreditation and accreditation body approval. 8.13 Section 8.13 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL PROVISIONS CERTIFICATION OF OPIOID TREATMENT PROGRAMS Certification and Treatment Standards § 8.13...
42 CFR 8.13 - Revocation of accreditation and accreditation body approval.
Code of Federal Regulations, 2012 CFR
2012-10-01
... 42 Public Health 1 2012-10-01 2012-10-01 false Revocation of accreditation and accreditation body approval. 8.13 Section 8.13 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL PROVISIONS CERTIFICATION OF OPIOID TREATMENT PROGRAMS Certification and Treatment Standards § 8.13...
42 CFR 8.13 - Revocation of accreditation and accreditation body approval.
Code of Federal Regulations, 2011 CFR
2011-10-01
... 42 Public Health 1 2011-10-01 2011-10-01 false Revocation of accreditation and accreditation body approval. 8.13 Section 8.13 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL PROVISIONS CERTIFICATION OF OPIOID TREATMENT PROGRAMS Certification and Treatment Standards § 8.13...
42 CFR 8.13 - Revocation of accreditation and accreditation body approval.
Code of Federal Regulations, 2014 CFR
2014-10-01
... 42 Public Health 1 2014-10-01 2014-10-01 false Revocation of accreditation and accreditation body approval. 8.13 Section 8.13 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL PROVISIONS CERTIFICATION OF OPIOID TREATMENT PROGRAMS Certification and Treatment Standards § 8.13...
Guide to Accreditation, 2011-2012
ERIC Educational Resources Information Center
Teacher Education Accreditation Council, 2011
2011-01-01
The Teacher Education Accreditation Council (TEAC) "Guide to Accreditation" includes a full description of TEAC's principles and standards, the accreditation process and audit, and detailed instruction on writing the "Brief." This revision includes expanded information on (1) preparing an "Inquiry Brief Proposal" and the audit of the "Inquiry…
21 CFR 900.13 - Revocation of accreditation and revocation of accreditation body approval.
Code of Federal Regulations, 2012 CFR
2012-04-01
... agency may take whatever other action or combination of actions will best protect the public health... human health or because the accreditation body fraudulently accredited facilities, that the certificates...
The specifics of dosimetry for food irradiation applications
NASA Astrophysics Data System (ADS)
Kuntz, Florent; Strasser, Alain
2016-12-01
Dose measurement applied to food irradiation is obviously a very important and critical aspect of this process. It is described in many standards and guides. The application of appropriate dosimetry tools is explained. This helps to ensure traceability of this measurement and number of dosimeters available on the market are well studied even though theirs response should be characterized while used in routine processing conditions. When employed in low energy radiation fields, these dosimeters may exhibit specific response compared to the usual Cobalt 60 source irradiation. Traceable calibration or correction factor assessment of this energy dependency is mandatory. It is to mention that the absorbed dose is measured in the dosimeter itself and unfortunately not in/on the food product. However, existing dosimetry systems fulfill all relevant requirements.
Bedwell, Joshua R; Choi, Sukgi; Chan, Kenny; Preciado, Diego
2013-09-01
The American Society of Pediatric Otolaryngology (ASPO) has set a goal of universal accreditation of fellowship programs by the Accreditation Council for Graduate Medical Education (ACGME) by 2014. This study offers data comparing trainee experience at accredited vs nonaccredited programs. To evaluate perceptions of pediatric otolaryngology fellowship training experience and to elucidate differences between those who trained in ACGME-accredited fellowships vs those who did not. Web-based survey sent to all members of ASPO, as well as recent fellowship graduate ASPO-eligible physicians. Responses were obtained in an anonymous fashion. The study population comprised 136 ASPO members who recently graduated from pediatric otolaryngology fellowship programs (36 from ACGME-accredited fellowships and 100 from nonaccredited programs). Difference in perceived fellowship experience between graduates of accredited vs nonaccredited programs, specifically, differences in service vs education perceptions. Overall, a majority (64%) of respondents agreed that standardizing the pediatric fellowship curriculum through ACGME accreditation is a worthwhile goal. Those who attended ACGME-accredited fellowships were more likely to favor accreditation vs non-ACGME graduates (83% vs 58%; P = .006). Graduates of ACGME-accredited programs were also more likely to agree that their fellowship provided adequate preparation for a career in academic medicine (100% vs 89%; P = .04), protected time for research (94% vs 60%; P < .001), vacation and academic time (94% vs 78%; P = .03), and opportunities to formally evaluate their superiors (72% vs 32%; P < .001). Non-ACGME graduates reported higher primary call frequency (0.8 days per week vs 0.2 days per week; P = .01), and attending physician participation in rounds (71% vs 53%; P = .05). Most respondents were in agreement with universal ACGME accreditation. Those having trained in accredited programs cite increased
Perrault, Evan K; Inderstrodt-Stephens, Jill; Hintz, Elizabeth A
2018-06-01
With funding for public health initiatives declining, creating measurable objectives that are focused on tracking and changing population outcomes (i.e., knowledge, attitudes, or behaviors), instead of those that are focused on health agencies' own outputs (e.g., promoting services, developing communication messages) have seen a renewed focus. This study analyzed 4094 objectives from the Community Health Improvement Plans (CHIPs) of 280 local PHAB-accredited and non-accredited public health agencies across the United States. Results revealed that accredited agencies were no more successful at creating outcomes-focused objectives (35% of those coded) compared to non-accredited agencies (33% of those coded; Z = 1.35, p = .18). The majority of objectives were focused on outputs (accredited: 61.2%; non-accredited: 63.3%; Z = 0.72, p = .47). Outcomes-focused objectives primarily sought to change behaviors (accredited: 85.43%; non-accredited: 80.6%), followed by changes in knowledge (accredited: 9.75%; non-accredited: 10.8%) and attitudes (accredited: 1.6%; non-accredited: 5.1%). Non-accredited agencies had more double-barreled objectives (49.9%) compared to accredited agencies (32%; Z = 11.43, p < .001). The authors recommend that accreditation procedures place a renewed focus on ensuring that public health agencies strive to achieve outcomes. It is also advocated that public health agencies work with interdisciplinary teams of Health Communicators who can help them develop procedures to effectively and efficiently measure outcomes of knowledge and attitudes that are influential drivers of behavioral changes.
22 CFR 96.103 - Oversight by accrediting entities.
Code of Federal Regulations, 2011 CFR
2011-04-01
... 22 Foreign Relations 1 2011-04-01 2011-04-01 false Oversight by accrediting entities. 96.103... Relating to Temporary Accreditation § 96.103 Oversight by accrediting entities. (a) The accrediting entity... agency's application for full accreditation when it is filed. The accrediting entity must also...
22 CFR 96.103 - Oversight by accrediting entities.
Code of Federal Regulations, 2010 CFR
2010-04-01
... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Oversight by accrediting entities. 96.103... Relating to Temporary Accreditation § 96.103 Oversight by accrediting entities. (a) The accrediting entity... agency's application for full accreditation when it is filed. The accrediting entity must also...
NCI Central Review Board Receives Accreditation
The Association for the Accreditation of Human Research Protection Programs has awarded the NCI Central Institutional Review Board full accreditation. AAHRPP awards accreditation to organizations demonstrating the highest ethical standards in clinical res
22 CFR 96.21 - Choosing an accrediting entity.
Code of Federal Regulations, 2010 CFR
2010-04-01
... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Choosing an accrediting entity. 96.21 Section... Accreditation and Approval § 96.21 Choosing an accrediting entity. (a) An agency that seeks to become accredited must apply to an accrediting entity that is designated to provide accreditation services and that has...
22 CFR 96.21 - Choosing an accrediting entity.
Code of Federal Regulations, 2011 CFR
2011-04-01
... 22 Foreign Relations 1 2011-04-01 2011-04-01 false Choosing an accrediting entity. 96.21 Section... Accreditation and Approval § 96.21 Choosing an accrediting entity. (a) An agency that seeks to become accredited must apply to an accrediting entity that is designated to provide accreditation services and that has...
ERIC Educational Resources Information Center
Ulmer, Phillip Gregory
2015-01-01
Accreditation is an essential component in the history of education in the United States and is a central catalyst for quality education, continuous improvement, and positive growth in student achievement. Although previous researchers identified teachers as an essential component in meeting accreditation outcomes, additional information was…
Comparison of infusion pumps calibration methods
NASA Astrophysics Data System (ADS)
Batista, Elsa; Godinho, Isabel; do Céu Ferreira, Maria; Furtado, Andreia; Lucas, Peter; Silva, Claudia
2017-12-01
Nowadays, several types of infusion pump are commonly used for drug delivery, such as syringe pumps and peristaltic pumps. These instruments present different measuring features and capacities according to their use and therapeutic application. In order to ensure the metrological traceability of these flow and volume measuring equipment, it is necessary to use suitable calibration methods and standards. Two different calibration methods can be used to determine the flow error of infusion pumps. One is the gravimetric method, considered as a primary method, commonly used by National Metrology Institutes. The other calibration method, a secondary method, relies on an infusion device analyser (IDA) and is typically used by hospital maintenance offices. The suitability of the IDA calibration method was assessed by testing several infusion instruments at different flow rates using the gravimetric method. In addition, a measurement comparison between Portuguese Accredited Laboratories and hospital maintenance offices was performed under the coordination of the Portuguese Institute for Quality, the National Metrology Institute. The obtained results were directly related to the used calibration method and are presented in this paper. This work has been developed in the framework of the EURAMET projects EMRP MeDD and EMPIR 15SIP03.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Chen, Q; Herrick, A; Hoke, S
Purpose: A new readout technology based on pulsed optically stimulating luminescence is introduced (microSTARii, Landauer, Inc, Glenwood, IL60425). This investigation searches for approaches that maximizes the dosimetry accuracy in clinical applications. Methods: The sensitivity of each optically stimulated luminescence dosimeter (OSLD) was initially characterized by exposing it to a given radiation beam. After readout, the luminescence signal stored in the OSLD was erased by exposing its sensing area to a 21W white LED light for 24 hours. A set of OSLDs with consistent sensitivities was selected to calibrate the dose reader. Higher order nonlinear curves were also derived from themore » calibration readings. OSLDs with cumulative doses below 15 Gy were reused. Before an in-vivo dosimetry, the OSLD luminescence signal was erased with the white LED light. Results: For a set of 68 manufacturer-screened OSLDs, the measured sensitivities vary in a range of 17.3%. A sub-set of the OSLDs with sensitivities within ±1% was selected for the reader calibration. Three OSLDs in a group were exposed to a given radiation. Nine groups were exposed to radiation doses ranging from 0 to 13 Gy. Additional verifications demonstrated that the reader uncertainty is about 3%. With an external calibration function derived by fitting the OSLD readings to a 3rd-order polynomial, the dosimetry uncertainty dropped to 0.5%. The dose-luminescence response curves of individual OSLDs were characterized. All curves converge within 1% after the sensitivity correction. With all uncertainties considered, the systematic uncertainty is about 2%. Additional tests emulating in-vivo dosimetry by exposing the OSLDs under different radiation sources confirmed the claim. Conclusion: The sensitivity of individual OSLD should be characterized initially. A 3rd-order polynomial function is a more accurate representation of the dose-luminescence response curve. The dosimetry uncertainty specified by the
Code of Federal Regulations, 2010 CFR
2010-04-01
... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Converting an application for temporary accreditation to an application for full accreditation. 96.99 Section 96.99 Foreign Relations DEPARTMENT OF... INTERCOUNTRY ADOPTION ACT OF 2000 (IAA) Procedures and Standards Relating to Temporary Accreditation § 96.99...
Neutron dosimetry of the Little Boy device
DOE Office of Scientific and Technical Information (OSTI.GOV)
Pederson, R.A.; Plassmann, E.A.
1984-01-01
Neutron dose rates at several angular locations and at distances out to 0.5 mile have been measured during critical operation of the Little Boy replica. We used modified remmetes and thermoluminescent dosimetry techniques for the measurements. The present status of our analysis is presented including estimates of the neutron-dose-relaxation length in air and the variation of the neutron-to-gamma-ray dose ratio with distance from the replica. These results are preliminary and are subject to detector calibration measurements.
7 CFR 205.506 - Granting accreditation.
Code of Federal Regulations, 2010 CFR
2010-01-01
..., Inspections, Marketing Practices), DEPARTMENT OF AGRICULTURE (CONTINUED) ORGANIC FOODS PRODUCTION ACT PROVISIONS NATIONAL ORGANIC PROGRAM Accreditation of Certifying Agents § 205.506 Granting accreditation. (a... accreditation as provided in § 205.510(c), the certifying agent voluntarily ceases its certification activities...
Accreditation versus Certification: Which?
ERIC Educational Resources Information Center
Totten, Herman L.
1989-01-01
Describes and compares the process used for accreditation of postsecondary programs of education for librarianship, and the existing programs and justification for certification of individual librarians. An argument for the advantages of institutional accreditation over individual certification is presented. (13 references) (CLB)
ERIC Educational Resources Information Center
McGraw-Hill Continuing Education Center, Washington, DC.
A study on proposed accreditation standards grew out of a need to (1) stimulate the growth of quality correspondence degree programs; and (2) provide a policy for accreditation of correspondence degree programs so that graduates would be encouraged to pursue advanced degree programs offered elsewhere by educational institutions. The study focused…
Radiochromic film calibration for the RQT9 quality beam
NASA Astrophysics Data System (ADS)
Costa, K. C.; Gomez, A. M. L.; Alonso, T. C.; Mourao, A. P.
2017-11-01
When ionizing radiation interacts with matter it generates energy deposition. Radiation dosimetry is important for medical applications of ionizing radiation due to the increasing demand for diagnostic radiology and radiotherapy. Different dosimetry methods are used and each one has its advantages and disadvantages. The film is a dose measurement method that records the energy deposition by the darkening of its emulsion. Radiochromic films have a little visible light sensitivity and respond better to ionizing radiation exposure. The aim of this study is to obtain the resulting calibration curve by the irradiation of radiochromic film strips, making it possible to relate the darkening of the film with the absorbed dose, in order to measure doses in experiments with X-ray beam of 120 kV, in computed tomography (CT). Film strips of GAFCHROMIC XR-QA2 were exposed according to RQT9 reference radiation, which defines an X-ray beam generated from a voltage of 120 kV. Strips were irradiated in "Laboratório de Calibração de Dosímetros do Centro de Desenvolvimento da Tecnologia Nuclear" (LCD / CDTN) at a dose range of 5-30 mGy, corresponding to the range values commonly used in CT scans. Digital images of the irradiated films were analyzed by using the ImageJ software. The darkening responses on film strips according to the doses were observed and they allowed obtaining the corresponding numeric values to the darkening for each specific dose value. From the numerical values of darkening, a calibration curve was obtained, which correlates the darkening of the film strip with dose values in mGy. The calibration curve equation is a simplified method for obtaining absorbed dose values using digital images of radiochromic films irradiated. With the calibration curve, radiochromic films may be applied on dosimetry in experiments on CT scans using X-ray beam of 120 kV, in order to improve CT acquisition image processes.
Guide to Accreditation, 2012. [December 2011 Revision
ERIC Educational Resources Information Center
Teacher Education Accreditation Council, 2012
2012-01-01
The Teacher Education Accreditation Council's (TEAC's) "Guide to Accreditation" is primarily for the faculty, staff, and administrators of TEAC member programs. It is designed for use in preparing for both initial and continuing accreditation. Program personnel should understand and accept all the components of the TEAC accreditation process…
Evaluation and implementation of triple‐channel radiochromic film dosimetry in brachytherapy
Bradley, David; Nisbet, Andrew
2014-01-01
The measurement of dose distributions in clinical brachytherapy, for the purpose of quality control, commissioning or dosimetric audit, is challenging and requires development. Radiochromic film dosimetry with a commercial flatbed scanner may be suitable, but careful methodologies are required to control various sources of uncertainty. Triple‐channel dosimetry has recently been utilized in external beam radiotherapy to improve the accuracy of film dosimetry, but its use in brachytherapy, with characteristic high maximum doses, steep dose gradients, and small scales, has been less well researched. We investigate the use of advanced film dosimetry techniques for brachytherapy dosimetry, evaluating uncertainties and assessing the mitigation afforded by triple‐channel dosimetry. We present results on postirradiation film darkening, lateral scanner effect, film surface perturbation, film active layer thickness, film curling, and examples of the measurement of clinical brachytherapy dose distributions. The lateral scanner effect in brachytherapy film dosimetry can be very significant, up to 23% dose increase at 14 Gy, at ± 9 cm lateral from the scanner axis for simple single‐channel dosimetry. Triple‐channel dosimetry mitigates the effect, but still limits the useable width of a typical scanner to less than 8 cm at high dose levels to give dose uncertainty to within 1%. Triple‐channel dosimetry separates dose and dose‐independent signal components, and effectively removes disturbances caused by film thickness variation and surface perturbations in the examples considered in this work. The use of reference dose films scanned simultaneously with brachytherapy test films is recommended to account for scanner variations from calibration conditions. Postirradiation darkening, which is a continual logarithmic function with time, must be taken into account between the reference and test films. Finally, films must be flat when scanned to avoid the Callier
9 CFR 439.50 - Refusal of accreditation.
Code of Federal Regulations, 2010 CFR
2010-01-01
... ACCREDITATION OF NON-FEDERAL CHEMISTRY LABORATORIES § 439.50 Refusal of accreditation. Upon a determination by the Administrator, a laboratory will be refused accreditation for the following reasons: (a) A laboratory will be refused accreditation for failure to meet the requirements of § 439.5 or § 439.10 of this...
Distinctions among Accreditation Agencies for Business Programs
ERIC Educational Resources Information Center
Corcoran, Charles P.
2007-01-01
Over the past twenty years, business accreditation has become a growth industry. In 1988, some eleven percent of business programs were accredited by an accrediting body devoted solely to business program accreditation. Today, over forty-two percent boast of such external validation of their programs. Although the three principal accrediting…
42 CFR 414.68 - Imaging accreditation.
Code of Federal Regulations, 2011 CFR
2011-10-01
... of the organization's data management and analysis system for its surveys and accreditation decisions... organizations. (iv) Notify CMS, in writing, at least 30 calendar days in advance of the effective date of any... to designate and approve independent accreditation organizations for purposes of accrediting...
42 CFR 414.68 - Imaging accreditation.
Code of Federal Regulations, 2010 CFR
2010-10-01
... of the organization's data management and analysis system for its surveys and accreditation decisions... organizations. (iv) Notify CMS, in writing, at least 30 calendar days in advance of the effective date of any... to designate and approve independent accreditation organizations for purposes of accrediting...
Assessment of national dosimetry quality audits results for teletherapy machines from 1989 to 2015.
Muhammad, Wazir; Ullah, Asad; Mahmood, Khalid; Matiullah
2016-01-01
The purpose of this study was to ensure accuracy in radiation dose delivery, external dosimetry quality audit has an equal importance with routine dosimetry performed at clinics. To do so, dosimetry quality audit was organized by the Secondary Standard Dosimetry Laboratory (SSDL) of Pakistan Institute of Nuclear Science and Technology (PINSTECH) at the national level to investigate and minimize uncertainties involved in the measurement of absorbed dose, and to improve the accuracy of dose measurement at different radiotherapy hospitals. A total of 181 dosimetry quality audits (i.e., 102 of Co-60 and 79 of linear accelerators) for teletherapy units installed at 22 different sites were performed from 1989 to 2015. The percent deviation between users’ calculated/stated dose and evaluated dose (in the result of on-site dosimetry visits) were calculated and the results were analyzed with respect to the limits of ± 2.5% (ICRU "optimal model") ± 3.0% (IAEA on-site dosimetry visits limit) and ± 5.0% (ICRU minimal or "lowest acceptable" model). The results showed that out of 181 total on-site dosimetry visits, 20.44%, 16.02%, and 4.42% were out of acceptable limits of ± 2.5% ± 3.0%, and ± 5.0%, respectively. The importance of a proper ongoing quality assurance program, recommendations of the followed protocols, and properly calibrated thermometers, pressure gauges, and humidity meters at radiotherapy hospitals are essential in maintaining consistency and uniformity of absorbed dose measurements for precision in dose delivery.
IS 2010 and ABET Accreditation: An Analysis of ABET-Accredited Information Systems Programs
ERIC Educational Resources Information Center
Saulnier, Bruce; White, Bruce
2011-01-01
Many strong forces are converging on information systems academic departments. Among these forces are quality considerations, accreditation, curriculum models, declining/steady student enrollments, and keeping current with respect to emerging technologies and trends. ABET, formerly the Accrediting Board for Engineering and Technology, is at…
Silvestre, Jason; Serletti, Joseph M; Chang, Benjamin
2018-05-01
The purposes of this study were to (1) determine the proportion of plastic surgery residents pursuing subspecialty training relative to other surgical specialties, and (2) analyze trends in Accreditation Council for Graduate Medical Education accreditation of plastic surgery subspecialty fellowship programs. The American Medical Association provided data on career intentions of surgical chief residents graduating from 2014 to 2016. The percentage of residents pursuing fellowship training was compared by specialty. Trends in the proportion of accredited fellowship programs in craniofacial surgery, hand surgery, and microsurgery were analyzed. The percentage of accredited programs was compared between subspecialties with added-certification options (hand surgery) and subspecialties without added-certification options (craniofacial surgery and microsurgery). Most integrated and independent plastic surgery residents pursued fellowship training (61.8 percent versus 49.6 percent; p = 0.014). Differences existed by specialty from a high in orthopedic surgery (90.8 percent) to a low in colon and rectal surgery (3.2 percent). From 2005 to 2015, the percentage of accredited craniofacial fellowship programs increased, but was not significant (from 27.8 percent to 33.3 percent; p = 0.386). For hand surgery, the proportion of accredited programs that were plastic surgery (p = 0.755) and orthopedic surgery (p = 0.253) was stable, whereas general surgery decreased (p = 0.010). Subspecialty areas with added-certification options had more accredited fellowships than those without (100 percent versus 19.2 percent; p < 0.001). There has been slow adoption of accreditation among plastic surgery subspecialty fellowships, but added-certification options appear to be highly correlated.
A systems engineering approach to AIS accreditation
DOE Office of Scientific and Technical Information (OSTI.GOV)
Harris, L.M.; Hunteman, W.J.
1994-04-01
The systems engineering model provides the vehicle for communication between the developer and the customer by presenting system facts and demonstrating the system in an organized form. The same model provides implementors with views of the system`s function and capability. The authors contend that the process of obtaining accreditation for a classified Automated Information System (AIS) adheres to the typical systems engineering model. The accreditation process is modeled as a ``roadmap`` with the customer represented by the Designed Accrediting Authority. The ``roadmap`` model reduces the amount of accreditation knowledge required of an AIS developer and maximizes the effectiveness of participationmore » in the accreditation process by making the understanding of accreditation a natural consequence of applying the model. This paper identifies ten ``destinations`` on the ``road`` to accreditation. The significance of each ``destination`` is explained, as are the potential consequences of its exclusion. The ``roadmap,`` which has been applied to a range of information systems throughout the DOE community, establishes a paradigm for the certification and accreditation of classified AISs.« less
High LET, passive space radiation dosimetry and spectrometry
NASA Technical Reports Server (NTRS)
Benton, E. V.; Frank, A. L.; Benton, E. R.; Keegan, R. P.; Frigo, L. A.; Sanner, D.; Rowe, V.
1995-01-01
The development of high linear energy transfer (LET), passive radiation dosimetry and spectrometry is needed for the purpose of accurate determination of equivalent doses and assessment of health risks to astronauts on long duration missions. Progress in the following research areas is summerized: intercomparisons of cosmic ray equivalent dose and LET spectra measurements between STS missions and between astronauts; increases LET spectra measurement accuracy with ATAS; space radiation measurements for intercomparisons of passive (PNTD, TLD, TRND, Emulsion) and active (TEPC, RME-111) dosimeters; interaction of cosmic ray particles with nuclei in matter; radiation measurements after long duration space exposures; ground based dosimeter calibrations; neutron detector calibrations; radiation measurements on Soviet/Russian spacecraft; space radiation measurements under thin shielding; and space radiation.
38 CFR 21.4253 - Accredited courses.
Code of Federal Regulations, 2013 CFR
2013-07-01
... 38 Pensions, Bonuses, and Veterans' Relief 2 2013-07-01 2013-07-01 false Accredited courses. 21...) VOCATIONAL REHABILITATION AND EDUCATION Administration of Educational Assistance Programs Courses § 21.4253 Accredited courses. (a) General. A course may be approved as an accredited course if it meets one of the...
38 CFR 21.4253 - Accredited courses.
Code of Federal Regulations, 2014 CFR
2014-07-01
... 38 Pensions, Bonuses, and Veterans' Relief 2 2014-07-01 2014-07-01 false Accredited courses. 21...) VOCATIONAL REHABILITATION AND EDUCATION Administration of Educational Assistance Programs Courses § 21.4253 Accredited courses. (a) General. A course may be approved as an accredited course if it meets one of the...
38 CFR 21.4253 - Accredited courses.
Code of Federal Regulations, 2012 CFR
2012-07-01
... 38 Pensions, Bonuses, and Veterans' Relief 2 2012-07-01 2012-07-01 false Accredited courses. 21...) VOCATIONAL REHABILITATION AND EDUCATION Administration of Educational Assistance Programs Courses § 21.4253 Accredited courses. (a) General. A course may be approved as an accredited course if it meets one of the...
Accreditation for Armed Forces Educational Institutions.
ERIC Educational Resources Information Center
Tarquine, Robert Blaine
The report established the need for educational accreditation and consolidates the various means of achieving accreditation that are available to the Armed Forces, into one accessible reference. The scope of each accrediting method is presented in detail, allowing educational officials to evaluate the methods in respect to their individual…
Calibrating page sized Gafchromic EBT3 films
DOE Office of Scientific and Technical Information (OSTI.GOV)
Crijns, W.; Maes, F.; Heide, U. A. van der
2013-01-15
Purpose: The purpose is the development of a novel calibration method for dosimetry with Gafchromic EBT3 films. The method should be applicable for pretreatment verification of volumetric modulated arc, and intensity modulated radiotherapy. Because the exposed area on film can be large for such treatments, lateral scan errors must be taken into account. The correction for the lateral scan effect is obtained from the calibration data itself. Methods: In this work, the film measurements were modeled using their relative scan values (Transmittance, T). Inside the transmittance domain a linear combination and a parabolic lateral scan correction described the observed transmittancemore » values. The linear combination model, combined a monomer transmittance state (T{sub 0}) and a polymer transmittance state (T{sub {infinity}}) of the film. The dose domain was associated with the observed effects in the transmittance domain through a rational calibration function. On the calibration film only simple static fields were applied and page sized films were used for calibration and measurements (treatment verification). Four different calibration setups were considered and compared with respect to dose estimation accuracy. The first (I) used a calibration table from 32 regions of interest (ROIs) spread on 4 calibration films, the second (II) used 16 ROIs spread on 2 calibration films, the third (III), and fourth (IV) used 8 ROIs spread on a single calibration film. The calibration tables of the setups I, II, and IV contained eight dose levels delivered to different positions on the films, while for setup III only four dose levels were applied. Validation was performed by irradiating film strips with known doses at two different time points over the course of a week. Accuracy of the dose response and the lateral effect correction was estimated using the dose difference and the root mean squared error (RMSE), respectively. Results: A calibration based on two films was the
Air core detectors for Cerenkov-free scintillation dosimetry of brachytherapy β-sources.
Eichmann, Marion; Thomann, Benedikt
2017-09-01
Plastic scintillation detectors are used for dosimetry in small radiation fields with high dose gradients, e.g., provided by β-emitting sources like 106 Ru/ 106 Rh eye plaques. A drawback is a background signal caused by Cerenkov radiation generated by electrons passing the optical fibers (light guides) of this dosimetry system. Common approaches to correct for the Cerenkov signal are influenced by uncertainties resulting from detector positioning and calibration procedures. A different approach to avoid any correction procedure is to suppress the Cerenkov signal by replacing the solid core optical fiber with an air core light guide, previously shown for external beam therapy. In this study, the air core concept is modified and applied to the requirements of dosimetry in brachytherapy, proving its usability for measuring water energy doses in small radiation fields. Three air core detectors with different air core lengths are constructed and their performance in dosimetry for brachytherapy β-sources is compared with a standard two-fiber system, which uses a second fiber for Cerenkov correction. The detector systems are calibrated with a 90 Sr/ 90 Y secondary standard and tested for their angular dependence as well as their performance in depth dose measurements of 106 Ru/ 106 Rh sources. The signal loss relative to the standard detector increases with increasing air core length to a maximum value of 58.3%. At the same time, however, the percentage amount of Cerenkov light in the total signal is reduced from at least 12.1% to a value below 1.1%. There is a linear correlation between induced dose and measured signal current. The air core detectors determine the dose rates for 106 Ru/ 106 Rh sources without any form of correction for the Cerenkov signal. The air core detectors show advantages over the standard two-fiber system especially when measuring in radiation fields with high dose gradients. They can be used as simple one-fiber systems and allow for an almost
The Federal Regulation of Accrediting. Draft.
ERIC Educational Resources Information Center
Orlans, Harold
The meaning of accreditation and how it has evolved is discussed, and the relationship between accrediting agencies and the federal government is examined. Accrediting agencies derive from the federal government the power to designate which school shall be eligible for federal student assistance programs and/or a national recognition and stimulus…
Trivializing Teacher Education: The Accreditation Squeeze
ERIC Educational Resources Information Center
Johnson, Dale D.; Johnson, Bonnie; Farenga, Stephen J.; Ness, Daniel
2005-01-01
This book presents a critical analysis of the National Council for Accreditation of Teacher Education (NCATE). This accreditation organization has been in existence for 50 years and claims to accredit approximately 700 teacher education programs that prepare two-thirds of the nation's teachers. There is no convincing research, however, that…
DOE Office of Scientific and Technical Information (OSTI.GOV)
Kim, G; Muir, B; Culberson, W
Purpose: The working group on the review and extension of the TG-51 protocol (WGTG51) collected data from American Association of Physicists in Medicine (AAPM) members with respect to their current TG-51 and associated addendum usage in the interest of considering future protocol addenda and guidance on reference dosimetry best practices. This study reports an overview of this survey on dosimetry of external beams. Methods: Fourteen survey questions were developed by WGTG51 and released in November 2015. The questions collected information on reference dosimetry, beam quality specification, and ancillary calibration equipment. Results: Of the 190 submissions completed worldwide (U.S. 70%), 83%more » were AAPM members. Of the respondents, 33.5% implemented the TG-51 addendum, with the maximum calibration difference for any photon beam, with respect to the original TG-51 protocol, being <1% for 97.4% of responses. One major finding is that 81.8% of respondents used the same cylindrical ionization chamber for photon and electron dosimetry, implying that many clinics are foregoing the use of parallel-plate chambers. Other evidence suggests equivalent dosimetric results can be obtained with both cylindrical and parallel-plate chambers in electron beams. This, combined with users comfort with cylindrical chambers for electrons will likely impact recommendations put forward in an upcoming electron beam addendum to the TG-51 protocol. Data collected on ancillary equipment showed 58.2% (45.0%) of the thermometers (barometers) in use for beam calibration had NIST traceable calibration certificates, but 48.4% (42.7%) were never recalibrated. Conclusion: This survey provides a snapshot of TG-51 external beam reference dosimetry practice in radiotherapy centers. Findings demonstrate the rapid take-up of the TG-51 photon beam addendum and raise issues for the WGTG51 to focus on going forward, including guidelines on ancillary equipment and the choice of chamber for electron
[Accreditation of forensic laboratories].
Sołtyszewski, Ireneusz
2010-01-01
According to the framework decision of the European Union Council, genetic laboratories which perform tests for the benefit of the law enforcement agencies and the administration of justice are required to obtain a certificate of accreditation testifying to compliance with the PN EN ISO/IEC 17025:2005 standard. The certificate is the official confirmation of the competence to perform research, an acknowledgement of credibility, impartiality and professional independence. It is also the proof of establishment, implementation and maintenance of an appropriate management system. The article presents the legal basis for accreditation, the procedure of obtaining the certificate of accreditation and selected elements of the management system.
ERIC Educational Resources Information Center
Teacher Education Accreditation Council, 2010
2010-01-01
The Teacher Education Accreditation Council (TEAC), founded in 1997, is dedicated to improving academic degree and certificate programs for professional educators--those who teach and lead in schools, pre-K through grade 12, and to assuring the public of their quality. TEAC accredits undergraduate and graduate programs, including alternate route…
Accreditation of Distance Learning
ERIC Educational Resources Information Center
Demirel, Ergün
2016-01-01
The higher education institutes aspire to gain reputation of quality having accreditation from internationally recognized awarding bodies. The accreditation leads and provides quality assurance for education. Although distance learning becomes a significant part of the education system in the 21st century, there is still a common opinion that the…
ERIC Educational Resources Information Center
North Central Association of Colleges and Schools, Chicago, IL. Commission on Institutions of Higher Education.
An overview is presented of the accreditation process of the Commission on Institutions of Higher Education, along with a brief history of how that process has evolved. The handbook is divided into the following chapters: (1) introduction (meaning and purposes of accreditation, the evaluation of the Commission's evaluative principles, and the…
21 CFR 900.13 - Revocation of accreditation and revocation of accreditation body approval.
Code of Federal Regulations, 2010 CFR
2010-04-01
... 21 Food and Drugs 8 2010-04-01 2010-04-01 false Revocation of accreditation and revocation of accreditation body approval. 900.13 Section 900.13 Food and Drugs FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MAMMOGRAPHY QUALITY STANDARDS ACT MAMMOGRAPHY Quality Standards and...
Professional Accreditation for International Continuing Education.
ERIC Educational Resources Information Center
Edelson, Paul Jay
It is reasonable to argue that the members of a profession are the only ones who can directly address issues of accreditation. In the context of accreditation for international continuing education, it may be argued that professional organizations in continuing education cannot function as accrediting bodies except in the sense that they determine…
Scoping medical tourism and international hospital accreditation growth.
Woodhead, Anthony
2013-01-01
Uwe Reinhardt stated that medical tourism can do to the US healthcare system what the Japanese automotive industry did to American carmakers after Japanese products developed a value for money and reliability reputation. Unlike cars, however, healthcare can seldom be test-driven. Quality is difficult to assess after an intervention (posteriori), therefore, it is frequently evaluated via accreditation before an intervention (a priori). This article aims to scope the growth in international accreditation and its relationship to medical tourism markets. Using self-reported data from Accreditation Canada, Joint Commission International (JCI) and Australian Council on Healthcare Standards (ACHS), this article examines how quickly international accreditation is increasing, where it is occurring and what providers have been accredited. Since January 2000, over 350 international hospitals have been accredited; the JCI's total nearly tripling between 2007-2011. Joint Commission International staff have conducted most international accreditation (over 90 per cent). Analysing which countries and regions where the most international accreditation has occurred indicates where the most active medical tourism markets are. However, providers will not solely be providing care for medical tourists. Accreditation will not mean that mistakes will never happen, but that accredited providers are more willing to learn from them, to varying degrees. If a provider has been accredited by a large international accreditor then patients should gain some reassurance that the care they receive is likely to be a good standard. The author questions whether commercializing international accreditation will improve quality, arguing that research is necessary to assess the accreditation of these growing markets.
9 CFR 439.53 - Revocation of accreditation.
Code of Federal Regulations, 2014 CFR
2014-01-01
... ACCREDITATION OF NON-FEDERAL CHEMISTRY LABORATORIES § 439.53 Revocation of accreditation. The accreditation of a... has: (1) Altered any official sample or analytical finding; or (2) Substituted any analytical result...
9 CFR 439.53 - Revocation of accreditation.
Code of Federal Regulations, 2012 CFR
2012-01-01
... ACCREDITATION OF NON-FEDERAL CHEMISTRY LABORATORIES § 439.53 Revocation of accreditation. The accreditation of a... has: (1) Altered any official sample or analytical finding; or (2) Substituted any analytical result...
9 CFR 439.53 - Revocation of accreditation.
Code of Federal Regulations, 2013 CFR
2013-01-01
... ACCREDITATION OF NON-FEDERAL CHEMISTRY LABORATORIES § 439.53 Revocation of accreditation. The accreditation of a... has: (1) Altered any official sample or analytical finding; or (2) Substituted any analytical result...
9 CFR 439.53 - Revocation of accreditation.
Code of Federal Regulations, 2011 CFR
2011-01-01
... ACCREDITATION OF NON-FEDERAL CHEMISTRY LABORATORIES § 439.53 Revocation of accreditation. The accreditation of a... has: (1) Altered any official sample or analytical finding; or (2) Substituted any analytical result...
Twenty new ISO standards on dosimetry for radiation processing
NASA Astrophysics Data System (ADS)
Farrar, H., IV
2000-03-01
Twenty standards on essentially all aspects of dosimetry for radiation processing were published as new ISO standards in December 1998. The standards are based on 20 standard practices and guides developed over the past 14 years by Subcommittee E10.01 of the American Society for Testing and Materials (ASTM). The transformation to ISO standards using the 'fast track' process under ISO Technical Committee 85 (ISO/TC85) commenced in 1995 and resulted in some overlap of technical information between three of the new standards and the existing ISO Standard 11137 Sterilization of health care products — Requirements for validation and routine control — Radiation sterilization. Although the technical information in these four standards was consistent, compromise wording in the scopes of the three new ISO standards to establish precedence for use were adopted. Two of the new ISO standards are specifically for food irradiation applications, but the majority apply to all forms of gamma, X-ray, and electron beam radiation processing, including dosimetry for sterilization of health care products and the radiation processing of fruit, vegetables, meats, spices, processed foods, plastics, inks, medical wastes, and paper. Most of the standards provide exact procedures for using individual dosimetry systems or for characterizing various types of irradiation facilities, but one covers the selection and calibration of dosimetry systems, and another covers the treatment of uncertainties using the new ISO Type A and Type B evaluations. Unfortunately, nine of the 20 standards just adopted by the ISO are not the most recent versions of these standards and are therefore already out of date. To help solve this problem, efforts are being made to develop procedures to coordinate the ASTM and ISO development and revision processes for these and future ASTM-originating dosimetry standards. In the meantime, an additional four dosimetry standards have recently been published by the ASTM but
Micrometer-resolved film dosimetry using a microscope in microbeam radiation therapy
DOE Office of Scientific and Technical Information (OSTI.GOV)
Bartzsch, Stefan, E-mail: stefan.bartzsch@icr.ac.uk; Oelfke, Uwe; Lott, Johanna
2015-07-15
Purpose: Microbeam radiation therapy (MRT) is a still preclinical tumor therapy approach that uses arrays of a few tens of micrometer wide parallel beams separated by a few 100 μm. The production, measurement, and planning of such radiation fields are a challenge up to now. Here, the authors investigate the feasibility of radiochromic film dosimetry in combination with a microscopic readout as a tool to validate peak and valley doses in MRT, which is an important requirement for a future clinical application of the therapy. Methods: Gafchromic{sup ®} HD-810 and HD-V2 films are exposed to MRT fields at the biomedicalmore » beamline ID17 of the European Synchrotron Radiation Facility (ESRF) and are afterward scanned with a microscope. The measured dose is compared with Monte Carlo calculations. Image analysis tools and film handling protocols are developed that allow accurate and reproducible dosimetry. The performance of HD-810 and HD-V2 films is compared and a detailed analysis of the resolution, noise, and energy dependence is carried out. Measurement uncertainties are identified and analyzed. Results: The dose was measured with a resolution of 5 × 1000 μm{sup 2} and an accuracy of 5% in the peak and between 10% and 15% in the valley region. As main causes for dosimetry uncertainties, statistical noise, film inhomogeneities, and calibration errors were identified. Calibration errors strongly increase at low doses and exceeded 3% for doses below 50 and 70 Gy for HD-V2 and HD-810 films, respectively. While the grain size of both film types is approximately 2 μm, the statistical noise in HD-V2 is much higher than in HD-810 films. However, HD-810 films show a higher energy dependence at low photon energies. Conclusions: Both film types are appropriate for dosimetry in MRT and the microscope is superior to the microdensitometer used before at the ESRF with respect to resolution and reproducibility. However, a very careful analysis of the image data is required
A College President's Defense of Accreditation
ERIC Educational Resources Information Center
Oden, Robert A.
2009-01-01
Accreditation may be the sole opportunity for all parts of an institution to inquire together and in depth about the totality of their mission. In this chapter, the author seeks to frame the accreditation process well and defend the process with vigor and confidence. Before moving on to discuss a quite different perspective on accreditation, the…
DOE Office of Scientific and Technical Information (OSTI.GOV)
Rodiac, F.; Hudelot, JP.; Lecerf, J.
CABRI is an experimental pulse reactor operated by CEA at the Cadarache research center. Since 1978 the experimental programs have aimed at studying the fuel behavior under Reactivity Initiated Accident (RIA) conditions. Since 2003, it has been refurbished in order to be able to provide RIA and LOCA (Loss Of Coolant Accident) experiments in prototypical PWR conditions (155 bar, 300 deg. C). This project is part of a broader scope including an overall facility refurbishment and a safety review. The global modification is conducted by the CEA project team. It is funded by IRSN, which is conducting the CIP experimentalmore » program, in the framework of the OECD/NEA project CIP. It is financed in the framework of an international collaboration. During the reactor restart, commissioning tests are realized for all equipment, systems and circuits of the reactor. In particular neutronics and power commissioning tests will be performed respectively in 2015 and 2016. This paper focuses on the design of a complete and original dosimetry program that was built in support to the CABRI core characterization and to the power calibration. Each one of the above experimental goals will be fully described, as well as the target uncertainties and the forecasted experimental techniques and data treatment. (authors)« less
Gyani, Girdhar J; Krishnamurthy, B
2014-01-01
Quality in health care is important as it is directly linked with patient safety. Quality as we know is driven either by regulation or by market demand. Regulation in most developing countries has not been effective, as there is shortage of health care providers and governments have to be flexible. In such circumstances, quality has taken a back seat. Accreditation symbolizes the framework for quality governance of a hospital and is based on optimum standards. Not only is India establishing numerous state of the art hospitals, but they are also experiencing an increase in demand for quality as well as medical tourism. India launched its own accreditation system in 2006, conforming to standards accredited by ISQua. This article shows the journey to accreditation in India and describes the problems encountered by hospitals as well as the benefits it has generated for the industry and patients.
Voluntary Industry Distributor Accreditation Program
DOT National Transportation Integrated Search
1996-09-05
This advisory circular (AC) describes a system for the voluntary accreditation of civil aircraft parts distributors on the basis of voluntary industry oversight and provides information that may be used for developing accreditation programs. The Fede...
[Accreditation of clinical laboratories based on ISO standards].
Kawai, Tadashi
2004-11-01
International Organization for Standardization (ISO) have published two international standards (IS) to be used for accreditation of clinical laboratories; ISO/IEC 17025:1999 and ISO 15189:2003. Any laboratory accreditation body must satisfy the requirements stated in ISO/IEC Guide 58. In order to maintain the quality of the laboratory accreditation bodies worldwide, the International Laboratory Accreditation Cooperation (ILAC) has established the mutual recognition arrangement (MRA). In Japan, the International Accreditation Japan (IAJapan) and the Japan Accreditation Board for Conformity Assessment (JAB) are the members of the ILAC/MRA group. In 2003, the Japanese Committee for Clinical Laboratory Standards (JCCLS) and the JAB have established the Development Committee of Clinical Laboratory Accreditation Program (CLAP), in order to establish the CLAP, probably starting in 2005.
Arkaravichien, Wiwat; Wongpratat, Apichaya; Lertsinudom, Sunee
2016-08-01
Background Quality indicators determine the quality of actual practice in reference to standard criteria. The Community Pharmacy Association (Thailand), with technical support from the International Pharmaceutical Federation, developed a tool for quality assessment and quality improvement at community pharmacies. This tool has passed validity and reliability tests, but has not yet had feasibility testing. Objective (1) To test whether this quality tool could be used in routine settings. (2) To compare quality scores between accredited independent and accredited chain pharmacies. Setting Accredited independent pharmacies and accredited chain pharmacies in the north eastern region of Thailand. Methods A cross sectional study was conducted in 34 accredited independent pharmacies and accredited chain pharmacies. Quality scores were assessed by observation and by interviewing the responsible pharmacists. Data were collected and analyzed by independent t-test and Mann-Whitney U test as appropriate. Results were plotted by histogram and spider chart. Main outcome measure Domain's assessable scores, possible maximum scores, mean and median of measured scores. Results Domain's assessable scores were close to domain's possible maximum scores. This meant that most indicators could be assessed in most pharmacies. The spider chart revealed that measured scores in the personnel, drug inventory and stocking, and patient satisfaction and health promotion domains of chain pharmacies were significantly higher than those of independent pharmacies (p < 0.05). There was no statistical difference between independent pharmacies and chain pharmacies in the premise and facility or dispensing and patient care domains. Conclusion Quality indicators developed by the Community Pharmacy Association (Thailand) could be used to assess quality of practice in pharmacies in routine settings. It is revealed that the quality scores of chain pharmacies were higher than those of independent pharmacies.
NASA Astrophysics Data System (ADS)
Williamson, Jeffrey F.
2006-09-01
This paper briefly reviews the evolution of brachytherapy dosimetry from 1900 to the present. Dosimetric practices in brachytherapy fall into three distinct eras: During the era of biological dosimetry (1900-1938), radium pioneers could only specify Ra-226 and Rn-222 implants in terms of the mass of radium encapsulated within the implanted sources. Due to the high energy of its emitted gamma rays and the long range of its secondary electrons in air, free-air chambers could not be used to quantify the output of Ra-226 sources in terms of exposure. Biological dosimetry, most prominently the threshold erythema dose, gained currency as a means of intercomparing radium treatments with exposure-calibrated orthovoltage x-ray units. The classical dosimetry era (1940-1980) began with successful exposure standardization of Ra-226 sources by Bragg-Gray cavity chambers. Classical dose-computation algorithms, based upon 1-D buildup factor measurements and point-source superposition computational algorithms, were able to accommodate artificial radionuclides such as Co-60, Ir-192, and Cs-137. The quantitative dosimetry era (1980- ) arose in response to the increasing utilization of low energy K-capture radionuclides such as I-125 and Pd-103 for which classical approaches could not be expected to estimate accurate correct doses. This led to intensive development of both experimental (largely TLD-100 dosimetry) and Monte Carlo dosimetry techniques along with more accurate air-kerma strength standards. As a result of extensive benchmarking and intercomparison of these different methods, single-seed low-energy radionuclide dose distributions are now known with a total uncertainty of 3%-5%.
Progress with the NCT international dosimetry exchange.
Binns, P J; Riley, K J; Harling, O K; Auterinen, I; Marek, M; Kiger, W S
2004-11-01
The international collaboration that was organized to undertake a dosimetry exchange for purposes of combining clinical data from different facilities conducting neutron capture therapy has continued since its founding at the 9th ISNCT symposium in October 2000. The thrust towards accumulating physical dosimetry data for comparison between different participants has broadened to include facilities in Japan and the determination of spectral descriptions of different beams. Retrospective analysis of patient data from the Brookhaven Medical Research Reactor is also being considered for incorporation into this study to increase the pool of available data. Meanwhile the next essential phase of comparing measurements of visiting dosimetry groups with treatment plan calculations from the host institutes has commenced. Host centers from Petten, Finland and the Czech Republic in Europe and MIT in the USA have applied the regular calculations and clinical calibrations from their current clinical studies, to generate treatment plans in the large standard phantom used for measurements by visiting participants. These data have been exchanged between the participants and scaling factors to relate the separate dose components between the different institutes are being determined. Preliminary normalization of measured and calculated dosimetry for patients is nearing completion to enable the physical radiation doses that comprise a treatment prescription at a host institute to be directly related to the corresponding measured doses of a visiting group. This should serve as an impetus for the direct comparison of patient data although the clinical requirements for achieving this need to be clearly defined. This may necessitate more extensive comparisons of treatment planning calculations through the solution of test problems and clarification regarding the question of dose specification from treatment calculations in general.
COAMFTE accreditation and California MFT licensing exam success.
Caldwell, Benjamin E; Kunker, Shelly A; Brown, Stephen W; Saiki, Dustin Y
2011-10-01
Professional accreditation of graduate programs in marital and family therapy (MFT) is intended to ensure the strength of the education students receive. However, there is great difficulty in assessing the real-world impact of accreditation on students. Only one measure is applied consistently to graduates of all MFT programs, regardless of accreditation status: licensure examinations. Within California, COAMFTE-accredited, regionally (WASC) accredited, and state-approved programs all may offer degrees qualifying for licensure. Exam data from 2004, 2005, and 2006 (n = 5,646 examinees on the Written Clinical Vignette exam and n = 3,408 first-time examinees on the Standard Written Exam) were reviewed to determine the differences in exam success among graduates of programs at varying levels of accreditation. Students from COAMFTE-accredited programs were more successful on both California exams than were students from other WASC-accredited or state-approved universities. There were no significant differences between (non-COAMFTE) WASC-accredited universities and state-approved programs. Differences could be related to selection effects, if COAMFTE programs initially accept students of higher quality. Implications for therapist education and training are discussed. © 2011 American Association for Marriage and Family Therapy.
42 CFR 8.4 - Accreditation body responsibilities.
Code of Federal Regulations, 2014 CFR
2014-10-01
... CERTIFICATION OF OPIOID TREATMENT PROGRAMS Accreditation § 8.4 Accreditation body responsibilities. (a... discovers information that suggests that an OTP is not meeting Federal opioid treatment standards, or if... substantially fails to meet the Federal opioid treatment standards. (ii) Accreditation bodies shall notify...
42 CFR 8.4 - Accreditation body responsibilities.
Code of Federal Regulations, 2012 CFR
2012-10-01
... CERTIFICATION OF OPIOID TREATMENT PROGRAMS Accreditation § 8.4 Accreditation body responsibilities. (a... discovers information that suggests that an OTP is not meeting Federal opioid treatment standards, or if... substantially fails to meet the Federal opioid treatment standards. (ii) Accreditation bodies shall notify...
42 CFR 8.4 - Accreditation body responsibilities.
Code of Federal Regulations, 2013 CFR
2013-10-01
... CERTIFICATION OF OPIOID TREATMENT PROGRAMS Accreditation § 8.4 Accreditation body responsibilities. (a... discovers information that suggests that an OTP is not meeting Federal opioid treatment standards, or if... substantially fails to meet the Federal opioid treatment standards. (ii) Accreditation bodies shall notify...
Accreditation of residency training in the US.
Armbruster, J. S.
1996-01-01
In the US, accreditation and certification of residency training are functions of separate public sector agencies. Accrediting decisions are made directly by 26 Residency Review Committees, which represent the primary medical specialties and function under the authority of the Accreditation Council for Graduate Medical Education. The accrediting bodies may consider only educational issues and are prohibited by the government from controlling physician supply. Only the programme, not the institution in which it is conducted, is accredited. The US residency is a structured educational programme that is expected to provide comparable experience to all enrolled residents. Length of training may vary from two to six years depending on the specialty. Additional training may be obtained in subspecialty programmes, which are subsets of the primary specialty residencies and are also reviewed for accreditation. These have increased in significant number in recent years as subspecialisation has proliferated in the US. PMID:8935597
22 CFR 96.8 - Fees charged by accrediting entities.
Code of Federal Regulations, 2010 CFR
2010-04-01
... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Fees charged by accrediting entities. 96.8... Duties of Accrediting Entities § 96.8 Fees charged by accrediting entities. (a) An accrediting entity may... fees approved by the Secretary. Before approving a schedule of fees proposed by an accrediting entity...
A protocol for EBT3 radiochromic film dosimetry using reflection scanning
DOE Office of Scientific and Technical Information (OSTI.GOV)
Papaconstadopoulos, Pavlos, E-mail: pavpapac@gmail.com; Hegyi, Gyorgy; Seuntjens, Jan
2014-12-15
Purpose: To evaluate the performance of the EBT3 radiochromic film dosimetry system using reflection measurements and to suggest a calibration protocol for precise and accurate reflection film dosimetry. Methods: A set of 14 Gafchromic EBT3 film pieces were irradiated to various doses ranging from 0 to 8 Gy and subsequently scanned using both the reflection and transmission mode. Scanning resolution varied from 50 to 508 dpi (0.5–0.05 mm/pixel). Both the red and green color channels of scanned images were used to relate the film response to the dose. A sensitivity, uncertainty, and accuracy analysis was performed for all scanning modesmore » and color channels. The total uncertainty, along with the fitting and experimental uncertainty components, was identified and analyzed. A microscope resolution target was used to evaluate possible resolution losses under reflection scanning. The calibration range was optimized for reflection scanning in the low (<2 Gy) and high (>2 Gy) dose regions based on the reported results. Results: Reflection scanning using the red channel exhibited the highest sensitivity among all modes, being up to 150% higher than transmission mode in the red channel for the lowest dose level. Furthermore, there was no apparent loss in resolution between the two modes. However, higher uncertainties and reduced accuracy were observed for the red channel under reflection mode, especially at dose levels higher than 2 Gy. These uncertainties were mainly attributed to saturation effects which were translated in poor fitting results. By restricting the calibration to the 0–2 Gy dose range, the situation is reversed and the red reflection mode was superior to the transmission mode. For higher doses, the green channel in reflection mode presented comparable results to the red transmission. Conclusions: A two-color reflection scanning protocol can be suggested for EBT3 radiochromic film dosimetry using the red channel for doses less than 2 Gy and the
The Role of Accreditation in Consumer Protection.
ERIC Educational Resources Information Center
Warner, W. Keith; Andersen, Kay J.
1982-01-01
Upper-level college administrators in the Western accreditation region were surveyed about how well the Western Association of Schools and Colleges (WASC) served its constituency. Questions concerned consumer protection as an objective of accreditation, emphasis on disseminating information about the accreditation process, and potential policy…
[Accreditation of Independent Ethics Committees].
Ramiro Avilés, Miguel A
According to Law 14/2007 and Royal Decree 1090/2015, biomedical research must be assessed by an Research Ethics Committee (REC), which must be accredited as an Research ethics committee for clinical trials involving medicinal products (RECm) if the opinion is issued for a clinical trial involving medicinal products or clinical research with medical devices. The aim of this study is to ascertain how IEC and IECm accreditation is regulated. National and regional legislation governing biomedical research was analysed. No clearly-defined IEC or IECm accreditation procedures exist in the national or regional legislation. Independent Ethics Committees are vital for the development of basic or clinical biomedical research, and they must be accredited by an external body in order to safeguard their independence, multidisciplinary composition and review procedures. Copyright © 2016 SESPAS. Publicado por Elsevier España, S.L.U. All rights reserved.
9 CFR 439.51 - Probation of accreditation.
Code of Federal Regulations, 2010 CFR
2010-01-01
... ACCREDITATION OF NON-FEDERAL CHEMISTRY LABORATORIES § 439.51 Probation of accreditation. Upon a determination by the Administrator, a laboratory will be placed on probation for the following reasons: (a) If the laboratory fails to complete more than one interlaboratory accreditation maintenance check sample analysis as...
Handbook of Accreditation 1994-96.
ERIC Educational Resources Information Center
North Central Association of Colleges and Schools, Chicago, IL. Commission on Institutions of Higher Education.
This comprehensive handbook contains accreditation materials of the North Central Association of Colleges and Schools Commission on Institutions of Higher Education. These include the general institutional requirements, the criteria for accreditation, and new policies on institutional change. The chapters are: (1) "Introduction to Voluntary…
22 CFR 96.63 - Renewal of accreditation or approval.
Code of Federal Regulations, 2010 CFR
2010-04-01
... for renewal in a timely fashion. Before deciding whether to renew the accreditation or approval of an... accrediting entity or the Secretary during its most current accreditation or approval cycle, the accrediting...
Accrediting osteopathic postdoctoral training institutions.
Duffy, Thomas
2011-04-01
All postdoctoral training programs approved by the American Osteopathic Association are required to be part of an Osteopathic Postdoctoral Training Institution (OPTI) consortium. The author reviews recent activities related to OPTI operations, including the transfer the OPTI Annual Report to an electronic database, revisions to the OPTI Accreditation Handbook, training at the 2010 OPTI Workshop, and new requirements of the American Osteopathic Association Commission on Osteopathic College Accreditation. The author also reviews the OPTI accreditation process, cites common commendations and deficiencies for reviews completed from 2008 to 2010, and provides an overview of plans for future improvements.
Medical students' perceptions of international accreditation.
Ibrahim, Halah; Abdel-Razig, Sawsan; Nair, Satish C
2015-10-11
This study aimed to explore the perceptions of medical students in a developing medical education system towards international accreditation. Applicants to an Internal Medicine residency program in an academic medical center in the United Arab Emirates (UAE) accredited by the Accreditation Council for Graduate Medical Education-International (ACGME-I) were surveyed between May and June 2014. The authors analysed responses using inductive qualitative thematic analysis to identify emergent themes. Seventy-eight of 96 applicants (81%) completed the survey. The vast majority of respondents 74 (95%) reported that ACGME-I accreditation was an important factor in selecting a residency program. Five major themes were identified, namely improving the quality of education, increasing opportunities, meeting high international standards, improving program structure, and improving patient care. Seven (10%) of respondents felt they would be in a position to pursue fellowship training or future employment in the United States upon graduation from an ACGME-I program. UAE trainees have an overwhelmingly positive perception of international accreditation, with an emphasis on improving the quality of training provided. Misperceptions, however, exist about potential opportunities available to graduates of ACGME-I programs. As more countries adopt the standards of the ACGME-I or other international accrediting bodies, it is important to recognize and foster trainee "buy-in" of educational reform initiatives.
Perspectives on Accreditation of Postsecondary Occupational Education.
ERIC Educational Resources Information Center
Ward, Charles F., Ed.
The Center for Occupational Education sponsored a National Conference on Accreditation of Public Postsecondary Occupational Education, held in Atlanta, Georgia on June 10-12, 1970. The major papers presented at that conference were: (1) "The Continuing Need for Nongovernmental Accreditation" by Frank G. Dickey, (2) "Specialized Accrediting Agency…
NASA Astrophysics Data System (ADS)
Soares, Christopher
2006-03-01
In 2004 a new work item proposal (NWIP) was accepted by the International Organization for Standardization (ISO) Technical Committee 85 (TC85 -- Nuclear Energy), Subcommittee 2 (Radiation Protection) for the development of a standard for the clinical dosimetry of beta radiation sources used for brachytherapy. To develop this standard, a new Working Group (WG 22 - Ionizing Radiation Dosimetry and Protocols in Medical Applications) was formed. The standard is based on the work of an ad-hoc working group initiated by the Dosimetry task group of the Deutsches Insitiut für Normung (DIN). Initially the work was geared mainly towards the needs of intravascular brachytherapy, but with the decline of this application, more focus has been placed on the challenges of accurate dosimetry for the concave eye plaques used to treat ocular melanoma. Guidance is given for dosimetry formalisms, reference data to be used, calibrations, measurement methods, modeling, uncertainty determinations, treatment planning and reporting, and clinical quality control. The document is currently undergoing review by the ISO member bodies for acceptance as a Committee Draft (CD) with publication of the final standard expected by 2007. There are opportunities for other ISO standards for medical dosimetry within the framework of WG22.
Aligning Assessments for COSMA Accreditation
ERIC Educational Resources Information Center
Laird, Curt; Johnson, Dennis A.; Alderman, Heather
2015-01-01
Many higher education sport management programs are currently in the process of seeking accreditation from the Commission on Sport Management Accreditation (COSMA). This article provides a best-practice method for aligning student learning outcomes with a sport management program's mission and goals. Formative and summative assessment procedures…
NASA Astrophysics Data System (ADS)
Peixoto, J. G. P.; de Almeida, C. E.
2001-09-01
It is recognized by the international guidelines that it is necessary to offer calibration services for mammography beams in order to improve the quality of clinical diagnosis. Major efforts have been made by several laboratories in order to establish an appropriate and traceable calibration infrastructure and to provide the basis for a quality control programme in mammography. The contribution of the radiation metrology network to the users of mammography is reviewed in this work. Also steps required for the implementation of a mammography calibration system using a constant potential x-ray and a clinical mammography x-ray machine are presented. The various qualities of mammography radiation discussed in this work are in accordance with the IEC 61674 and the AAPM recommendations. They are at present available at several primary standard dosimetry laboratories (PSDLs), namely the PTB, NIST and BEV and a few secondary standard dosimetry laboratories (SSDLs) such as at the University of Wisconsin and at the IAEA's SSDL. We discuss the uncertainties involved in all steps of the calibration chain in accord with the ISO recommendations.
The Council on Aviation Accreditation. Part 2; Contemporary Issues
NASA Technical Reports Server (NTRS)
Prather, C. Daniel
2007-01-01
The Council on Aviation Accreditation (CAA) was established in 1988 in response to the need for formal, specialized accreditation of aviation academic programs, as expressed by institutional members of the University Aviation Association (UAA). The first aviation programs were accredited by the CAA in 1992, and today, the CAA lists 60 accredited programs at 21 institutions nationwide. Although the number of accredited programs has steadily grown, there are currently only 20 percent of UAA member institutions with CAA accredited programs. In an effort to further understand this issue, a case study of the CAA was performed, which resulted in a two-part case study report. Part one addressed the historical foundation of the organization and the current environment in which the CAA functions. Part two focuses on the following questions: (a) what are some of the costs to a program seeking CAA accreditation (b) what are some fo the benefits of being CAA accredited; (c) why do programs seek CAA accreditation; (d) why do programs choose no to seek CAA accreditation; (e) what role is the CAA playing in the international aviation academic community; and (f) what are some possible strategies the CAA may adopt to enhance the benefits of CAA accreditation and increase the number of CAA accredited programs. This second part allows for a more thorough understanding of the contemporary issued faced by the organization, as well as alternative strategies for the CAA to consider in an effort to increase the number of CAA accredited programs and more fully fulfill the role of the CAA in the collegiate aviation community.
ERIC Educational Resources Information Center
Blanco Ramírez, Gerardo
2015-01-01
Institutional accreditation in higher education holds universities accountable through external evaluation; at the same time, accreditation constitutes an opportunity for higher education leaders to demonstrate the quality of their institutions. In an increasingly global field of higher education, in which quality practices become diffused across…
9 CFR 439.52 - Suspension of accreditation.
Code of Federal Regulations, 2010 CFR
2010-01-01
... ACCREDITATION OF NON-FEDERAL CHEMISTRY LABORATORIES § 439.52 Suspension of accreditation. The accreditation of a laboratory will be suspended if the laboratory or any individual or entity responsibly connected with the laboratory is indicted or has charges on information brought against them in a Federal or State court for any...
DOE Office of Scientific and Technical Information (OSTI.GOV)
Meghzifene, Ahmed; Czap, Ladislav; Shortt, Ken
2008-08-14
The International Atomic Energy Agency (IAEA) and the World Health Organization (WHO) established a Network of Secondary Standards Dosimetry Laboratories (IAEA/WHO SSDL Network) in 1976. Through SSDLs designated by Member States, the Network provides a direct link of national dosimetry standards to the international measurement system of standards traceable to the Bureau International des Poids et Mesures (BIPM). Within this structure and through the proper calibration of field instruments, the SSDLs disseminate S.I. quantities and units.To ensure that the services provided by SSDL members to end-users follow internationally accepted standards, the IAEA has set up two different comparison programmes. Onemore » programme relies on the IAEA/WHO postal TLD service and the other uses comparisons of calibrated ionization chambers to help the SSDLs verify the integrity of their national standards and the procedures used for the transfer of the standards to the end-users. The IAEA comparisons include {sup 60}Co air kerma (N{sub K}) and absorbed dose to water (N{sub D,W}) coefficients. The results of the comparisons are confidential and are communicated only to the participants. This is to encourage participation of the laboratories and their full cooperation in the reconciliation of any discrepancy.This work describes the results of the IAEA programme comparing calibration coefficients for radiotherapy dosimetry, using ionization chambers. In this programme, ionization chambers that belong to the SSDLs are calibrated sequentially at the SSDL, at the IAEA, and again at the SSDL. As part of its own quality assurance programme, the IAEA has participated in several regional comparisons organized by Regional Metrology Organizations.The results of the IAEA comparison programme show that the majority of SSDLs are capable of providing calibrations that fall inside the acceptance level of 1.5% compared to the IAEA.« less
DOE Office of Scientific and Technical Information (OSTI.GOV)
Nazififard, Mohammad, E-mail: nazifi@kashanu.ac.ir; Mahmoudieh, Afshin; Suh, Kune Y.
Silicon PIN photodiode has recently found broad and exciting applications in the ionizing radiation dosimetry. In this study a compact and novel dosimetry system using a commercially available PIN photodiode (BPW34) has been experimentally tested for diagnostic radiology. The system was evaluated with clinical beams routinely used for diagnostic radiology and calibrated using a secondary reference standard. Measured dose with PIN photodiode (Air Kerma) varied from 10 to 430 μGy for tube voltages from 40 to 100 kVp and tube current from 0.4 to 40 mAs. The minimum detectable organ dose was estimated to be 10 μGy with 20% uncertainty.more » Results showed a linear correlation between the PIN photodiode readout and dose measured with standard dosimeters spanning doses received. The present dosimetry system having advantages of suitable sensitivity with immediate readout of dose values, low cost, and portability could be used as an alternative to passive dosimetry system such as thermoluminescent dosimeter for dose measurements in diagnostic radiology.« less
Teacher Education Accreditation Council Brochure
ERIC Educational Resources Information Center
Teacher Education Accreditation Council, 2009
2009-01-01
The Teacher Education Accreditation Council (TEAC), founded in 1997, is dedicated to improving academic degree programs for professional educators--those who teach and lead in schools, pre-K through grade 12. TEAC accredits undergraduate and graduate programs, including alternate route programs, based on (1) the evidence they have that they…
Medical students’ perceptions of international accreditation
Abdel-Razig, Sawsan; Nair, Satish C
2015-01-01
Objectives This study aimed to explore the perceptions of medical students in a developing medical education system towards international accreditation. Methods Applicants to an Internal Medicine residency program in an academic medical center in the United Arab Emirates (UAE) accredited by the Accreditation Council for Graduate Medical Education-International (ACGME-I) were surveyed between May and June 2014. The authors analysed responses using inductive qualitative thematic analysis to identify emergent themes. Results Seventy-eight of 96 applicants (81%) completed the survey. The vast majority of respondents 74 (95%) reported that ACGME-I accreditation was an important factor in selecting a residency program. Five major themes were identified, namely improving the quality of education, increasing opportunities, meeting high international standards, improving program structure, and improving patient care. Seven (10%) of respondents felt they would be in a position to pursue fellowship training or future employment in the United States upon graduation from an ACGME-I program. Conclusions UAE trainees have an overwhelmingly positive perception of international accreditation, with an emphasis on improving the quality of training provided. Misperceptions, however, exist about potential opportunities available to graduates of ACGME-I programs. As more countries adopt the standards of the ACGME-I or other international accrediting bodies, it is important to recognize and foster trainee “buy-in” of educational reform initiatives. PMID:26454402
Rundek, Tatjana; Brown, Scott C; Wang, Kefeng; Dong, Chuanhui; Farrell, Mary Beth; Heller, Gary V; Gornik, Heather L; Hutchisson, Marge; Needleman, Laurence; Benenati, James F; Jaff, Michael R; Meier, George H; Perese, Susana; Bendick, Phillip; Hamburg, Naomi M; Lohr, Joann M; LaPerna, Lucy; Leers, Steven A; Lilly, Michael P; Tegeler, Charles; Alexandrov, Andrei V; Katanick, Sandra L
2014-10-01
There is limited information on the accreditation status and geographic distribution of vascular testing facilities in the US. The Centers for Medicare & Medicaid Services (CMS) provide reimbursement to facilities regardless of accreditation status. The aims were to: (1) identify the proportion of Intersocietal Accreditation Commission (IAC) accredited vascular testing facilities in a 5% random national sample of Medicare beneficiaries receiving outpatient vascular testing services; (2) describe the geographic distribution of these facilities. The VALUE (Vascular Accreditation, Location & Utilization Evaluation) Study examines the proportion of IAC accredited facilities providing vascular testing procedures nationally, and the geographic distribution and utilization of these facilities. The data set containing all facilities that billed Medicare for outpatient vascular testing services in 2011 (5% CMS Outpatient Limited Data Set (LDS) file) was examined, and locations of outpatient vascular testing facilities were obtained from the 2011 CMS/Medicare Provider of Services (POS) file. Of 13,462 total vascular testing facilities billing Medicare for vascular testing procedures in a 5% random Outpatient LDS for the US in 2011, 13% (n=1730) of facilities were IAC accredited. The percentage of IAC accredited vascular testing facilities in the LDS file varied significantly by US region, p<0.0001: 26%, 12%, 11%, and 7% for the Northeast, South, Midwest, and Western regions, respectively. Findings suggest that the proportion of outpatient vascular testing facilities that are IAC accredited is low and varies by region. Increasing the number of accredited vascular testing facilities to improve test quality is a hypothesis that should be tested in future research. © The Author(s) 2014.
Quality Management and Calibration
NASA Astrophysics Data System (ADS)
Merkus, Henk G.
Good specification of a product’s performance requires adequate characterization of relevant properties. Particulate products are usually characterized by some PSD, shape or porosity parameter(s). For proper characterization, adequate sampling, dispersion, and measurement procedures should be available or developed and skilful personnel should use appropriate, well-calibrated/qualified equipment. The characterization should be executed, in agreement with customers, in a wellorganized laboratory. All related aspects should be laid down in a quality handbook. The laboratory should provide proof for its capability to perform the characterization of stated products and/or reference materials within stated confidence limits. This can be done either by internal validation and audits or by external GLP accreditation.
Teran, Anthony; Ghebremedhin, Abiel; Johnson, Matt; Patyal, Baldev
2015-01-01
Radiographic film dosimetry suffers from its energy dependence in proton dosimetry. This study sought to develop a method of measuring proton beams by the film and to evaluate film response to proton beams for the constancy check of depth dose (DD). It also evaluated the film for profile measurements. To achieve this goal, from DDs measured by film and ion chamber (IC), calibration factors (ratios of dose measured by IC to film responses) as a function of depth in a phantom were obtained. These factors imply variable slopes (with proton energy and depth) of linear characteristic curves that relate film response to dose. We derived a calibration method that enables utilization of the factors for acquisition of dose from film density measured at later dates by adapting to a potentially altered processor condition. To test this model, the characteristic curve was obtained by using EDR2 film and in‐phantom film dosimetry in parallel with a 149.65 MeV proton beam, using the method. An additional validation of the model was performed by concurrent film and IC measurement perpendicular to the beam at various depths. Beam profile measurements by the film were also evaluated at the center of beam modulation. In order to interpret and ascertain the film dosimetry, Monte Carlos simulation of the beam was performed, calculating the proton fluence spectrum along depths and off‐axis distances. By multiplying respective stopping powers to the spectrum, doses to film and water were calculated. The ratio of film dose to water dose was evaluated. Results are as follows. The characteristic curve proved the assumed linearity. The measured DD approached that of IC, but near the end of the spread‐out Bragg peak (SOBP), a spurious peak was observed due to the mismatch of distal edge between the calibration and measurement films. The width of SOBP and the proximal edge were both reproducible within a maximum of 5 mm; the distal edge was reproducible within 1 mm. At 5 cm depth, the
Hinchcliff, Reece; Greenfield, David; Moldovan, Max; Pawsey, Marjorie; Mumford, Virginia; Westbrook, Johanna Irene; Braithwaite, Jeffrey
2012-01-01
Accreditation programmes aim to improve the quality and safety of health services, and have been widely implemented. However, there is conflicting evidence regarding the outcomes of existing programmes. The Accreditation Collaborative for the Conduct of Research, Evaluation and Designated Investigations through Teamwork-Current Accreditation Processes (ACCREDIT-CAP) project is designed to address key gaps in the literature by evaluating the current processes of three accreditation programmes used across Australian acute, primary and aged care services. The project comprises three mixed-method studies involving documentary analyses, surveys, focus groups and individual interviews. Study samples will comprise stakeholders from across the Australian healthcare system: accreditation agencies; federal and state government departments; consumer advocates; professional colleges and associations; and staff of acute, primary and aged care services. Sample sizes have been determined to ensure results allow robust conclusions. Qualitative information will be thematically analysed, supported by the use of textual grouping software. Quantitative data will be subjected to a variety of analytical procedures, including descriptive and comparative statistics. The results are designed to inform health system policy and planning decisions in Australia and internationally. The project has been approved by the University of New South Wales Human Research Ethics Committee (approval number HREC 10274). Results will be reported to partner organisations, healthcare consumers and other stakeholders via peer-reviewed publications, conference and seminar presentations, and a publicly accessible website.
Goodman, Justin R; Chandna, Alka; Borch, Casey
2015-01-01
Accreditation of nonhuman animal research facilities by the Association for Assessment and Accreditation of Laboratory Animal Care International (AAALAC) is widely considered the "gold standard" of commitment to the well being of nonhuman animals used in research. AAALAC-accredited facilities receive preferential treatment from funding agencies and are viewed favorably by the general public. Thus, it bears investigating how well these facilities comply with U.S. animal research regulations. In this study, the incidences of noncompliance with the Animal Welfare Act (AWA) at AAALAC-accredited facilities were evaluated and compared to those at nonaccredited institutions during a period of 2 years. The analysis revealed that AAALAC-accredited facilities were frequently cited for AWA noncompliance items (NCIs). Controlling for the number of animals at each facility, AAALAC-accredited sites had significantly more AWA NCIs on average compared with nonaccredited sites. AAALAC-accredited sites also had more NCIs related to improper veterinary care, personnel qualifications, and animal husbandry. These results demonstrate that AAALAC accreditation does not improve compliance with regulations governing the treatment of animals in laboratories.
Patterns and predictors of local health department accreditation in Missouri
Mayer, Jeffrey; Elliott, Michael; Brownson, Ross C.; Abdulloeva, Safina; Wojciehowski, Kathleen
2016-01-01
Context Accreditation of local health departments has been identified as a crucial strategy for strengthening the public health infrastructure. Rural local health departments face many challenges including lower levels of staffing and funding than LHDs serving metropolitan or urban areas; simultaneously their populations experience health disparities related to risky health behaviors, health outcomes, and access to medical care. Through accreditation, rural local health departments can become better equipped to meet the needs of their communities. Objective To better understand the needs of communities by assessing barriers and incentives to state-level accreditation in Missouri from the rural local health department (RHLD) perspective. Design Qualitative analysis of semi-structured key informant interviews with Missouri LHDs serving rural communities. Participants Eleven administrators of RLHDs, seven from accredited and four from unaccredited departments were interviewed. Population size served ranged from 6,400 to 52,000 for accredited RLHDs and 7,200 to 73,000 for unaccredited RLHDs. Results Unaccredited RLHDs identified more barriers to accreditation than accredited RLHDs. Time was a major barrier to seeking accreditation. Unaccredited RLHDs overall did not see accreditation as a priority for their agency and failed to the see value of accreditation. Accredited RLHDs listed significantly more incentives then their unaccredited counterparts. Unaccredited RLHDs identified accountability, becoming more effective and efficient, staff development, and eventual funding as incentives to accreditation. Conclusions There is a need for better documentation of measurable benefits in order for a RLHD to pursue voluntary accreditation. Those who pursue are likely to see benefits after the fact, but those who do not, do not see the immediate and direct benefits of voluntary accreditation. The findings from this study of state-level accreditation in Missouri provides insight
Library Standards: Evidence of Library Effectiveness and Accreditation.
ERIC Educational Resources Information Center
Ebbinghouse, Carol
1999-01-01
Discusses accreditation standards for libraries based on experiences in an academic law library. Highlights include the accreditation process; the impact of distance education and remote technologies on accreditation; and a list of Internet sources of standards and information. (LRW)
Accreditations as Local Management Tools
ERIC Educational Resources Information Center
Cret, Benoit
2011-01-01
The development of accreditation agencies within the Higher Education sector in order to assess and guarantee the quality of services or product is still a growing phenomenon in Europe. Accreditations are conceived by institutional authors and by authors who directly deal with quality assurance processes as a means of legitimization or a means of…
American Accreditation: Why Do It?
ERIC Educational Resources Information Center
Prince, Deborah
2012-01-01
A review of the history and purpose of accreditation followed by a brief case study of how a small specialist institution outside of the USA went through the process of becoming accredited. The changes needed inside the curriculum and inside the organization in order to make this significant organizational development are reviewed and discussed.…
An Overview of U.S. Accreditation. Revised November 2015
ERIC Educational Resources Information Center
Eaton, Judith S.
2015-01-01
This publication provides a general description of the key features of U.S. accreditation of higher education and recognition of accrediting organizations. Accreditation in the United States is about quality assurance and quality improvement. It is a process to scrutinize higher education institutions and programs. Accreditation is private…
Is the hospital decision to seek accreditation an effective one?
Grepperud, Sverre
2015-01-01
The rapid expansion in the number of accredited hospitals justifies inquiry into the motives of hospitals in seeking accreditation and its social effectiveness. This paper presents a simple decision-theoretic framework where cost reductions and improved quality of care represent the endpoint benefits from accreditation. We argue that hospital accreditation, although acting as a market-signaling device, might be a socially inefficient institution. First, there is at present no convincing evidence for accreditation causing output quality improvements. Second, hospitals could seek accreditation, even though doing so is socially inefficient, because of moral hazard, consumer misperceptions, and nonprofit motivations. Finally, hospitals that seek accreditation need not themselves believe in output quality improvements from accreditation. Consequently, while awaiting additional evidence on accreditation, policy makers and third-party payers should exercise caution in encouraging such programs. Copyright © 2014 John Wiley & Sons, Ltd.
How feasible is remote 3D dosimetry for MR guided Radiation Therapy (MRgRT)?
NASA Astrophysics Data System (ADS)
Mein, S.; Rankine, L.; Miles, D.; Juang, T.; Cai, B.; Curcuru, A.; Mutic, S.; Fenoli, J.; Adamovics, J.; Li, H.; Oldham, M.
2017-05-01
To develop and apply a remote dosimetry protocol with PRESAGE® radiochromic plastic and optical-CT readout in the validation of MRI guided radiation therapy (MRgRT) treatments (MRIdian® by ViewRay®). Through multi-institutional collaboration we performed PRESAGE® dosimetry studies in 4ml cuvettes to investigate dose-response linearity, MR-compatibility, and energy-independence. An open calibration field and symmetrical 3-field plans were delivered to 10cm diameter PRESAGE® to examine percent depth dose and response uniformity under a magnetic field. Evidence of non-linear dose response led to a large volume PRESAGE® study where small corrections were developed for temporally- and spatially-dependent behaviors observed between irradiation and delayed readout. TG-119 plans were created in the MRIdian® TPS and then delivered to 14.5cm 2kg PRESAGE® dosimeters. Through the domestic investigation of an off-site MRgRT system, a refined 3D remote dosimetry protocol is presented capable of validation of advanced MRgRT radiation treatments.
Quality assurance and accreditation.
1997-01-01
In 1996, the Joint Commission International (JCI), which is a partnership between the Joint Commission on Accreditation of Healthcare Organizations and Quality Healthcare Resources, Inc., became one of the contractors of the Quality Assurance Project (QAP). JCI recognizes the link between accreditation and quality, and uses a collaborative approach to help a country develop national quality standards that will improve patient care, satisfy patient-centered objectives, and serve the interest of all affected parties. The implementation of good standards provides support for the good performance of professionals, introduces new ideas for improvement, enhances the quality of patient care, reduces costs, increases efficiency, strengthens public confidence, improves management, and enhances the involvement of the medical staff. Such good standards are objective and measurable; achievable with current resources; adaptable to different institutions and cultures; and demonstrate autonomy, flexibility, and creativity. The QAP offers the opportunity to approach accreditation through research efforts, training programs, and regulatory processes. QAP work in the area of accreditation has been targeted for Zambia, where the goal is to provide equal access to cost-effective, quality health care; Jordan, where a consensus process for the development of standards, guidelines, and policies has been initiated; and Ecuador, where JCI has been asked to help plan an approach to the evaluation and monitoring of the health care delivery system.
Assessment and Accreditation for Languages: The Emerging Consensus?
ERIC Educational Resources Information Center
Hubner, Anke, Ed.; Ibarz, Toni, Ed.; Laviosa, Sara, Ed.
Chapter titles include the following: "Language Teaching, Accreditation and the Social Purpose of Adult Education" (Liam Kane); "Student Attitudes to Learning, Assessment and Accreditation" (Fran Beaton); "Assessment on a Fully Accredited Open Language Programme: Achieving Beneficial Backwash in a Standardised Scheme" (Dounia Bissar); "Introducing…
[Accreditation model for acute hospital care in Catalonia, Spain].
López-Viñas, M Luisa; Costa, Núria; Tirvió, Carmen; Davins, Josep; Manzanera, Rafael; Ribera, Jaume; Constante, Carles; Vallès, Roser
2014-07-01
The implementation of an accreditation model for healthcare centres in Catalonia which was launched for acute care hospitals, leaving open the possibility of implementing it in the rest of lines of service (mental health and addiction, social health, and primary healthcare centres) is described. The model is based on the experience acquired over more tan 31 years of hospital accreditation and quality assessment linked to management. In January 2006 a model with accreditation methodology adapted to the European Foundation for Quality Management (EFQM) model was launched. 83 hospitals are accredited, with an average of 82.6% compliance with the standards required for accreditation. The number of active assessment bodies is 5, and the accreditation period is 3 years. A higher degree of compliance of the so-called "agent" criteria with respect to "outcome" criteria is obtained. Qualitative aspects for implementation to be stressed are: a strong commitment both from managers and staff in the centres, as well as a direct and fluent communication between the accreditation body (Ministry of Health of the Government of Catalonia) and accredited centres. Professionalism of audit bodies and an optimal communication between audit bodies and accredited centres is also added. Copyright © 2014. Published by Elsevier Espana.
What Should Gerontology Learn from Health Education Accreditation?
ERIC Educational Resources Information Center
Bradley, Dana Burr; Fitzgerald, Kelly
2012-01-01
Quality assurance and accreditation are closely tied together. This article documents the work toward a unified and comprehensive national accreditation program in health education. By exploring the accreditation journey of another discipline, the field of gerontology should learn valuable lessons. These include an attention to inclusivity, a…
7 CFR 205.502 - Applying for accreditation.
Code of Federal Regulations, 2010 CFR
2010-01-01
..., Inspections, Marketing Practices), DEPARTMENT OF AGRICULTURE (CONTINUED) ORGANIC FOODS PRODUCTION ACT PROVISIONS NATIONAL ORGANIC PROGRAM Accreditation of Certifying Agents § 205.502 Applying for accreditation...
State Health Agencies' Perceptions of the Benefits of Accreditation.
Kittle, Alannah; Liss-Levinson, Rivka
The national voluntary accreditation program serves to encourage health agencies to seek departmental accreditation as a mechanism for continuous quality improvement. This study utilizes data from the 2016 Association of State and Territorial Health Officials Profile Survey to examine the perceived benefits of accreditation among state health agencies. Respondents answered questions on topics such as agency structure, workforce, and quality improvement activities. Frequencies and cross tabulations were conducted using IBM SPSS (version 21) statistical software. Results indicate that among accredited agencies, the most commonly endorsed benefits of accreditation include stimulating quality and performance improvement opportunities (95%), strengthening the culture of quality improvement (90%), and stimulating greater collaboration across departments/units within the agency (90%). Policy and practice implications, such as how these data can be used to promote accreditation within health agencies, as well as how accreditation strengthens governmental public health systems, are also discussed.
ERIC Educational Resources Information Center
Cheng, Nellie S.
2015-01-01
Despite the widespread adoption of accreditation processes and the belief in their effectiveness for improving educational quality, the search for good accreditation practices remains a critical issue. This article recounts one university's experiences when simultaneously undergoing the accreditation processes of both the Middle States Commission…
Botta, Francesca; Ferrari, Mahila; Chiesa, Carlo; Vitali, Sara; Guerriero, Francesco; Nile, Maria Chiara De; Mira, Marta; Lorenzon, Leda; Pacilio, Massimiliano; Cremonesi, Marta
2018-04-01
To investigate the clinical implication of performing pre-treatment dosimetry for 90 Y-microspheres liver radioembolization on 99m Tc-MAA SPECT images reconstructed without attenuation or scatter correction and quantified with the patient relative calibration methodology. Twenty-five patients treated with SIR-Spheres ® at Istituto Europeo di Oncologia and 31 patients treated with TheraSphere ® at Istituto Nazionale Tumori were considered. For each acquired 99m Tc-MAA SPECT, four reconstructions were performed: with attenuation and scatter correction (AC_SC), only attenuation (AC_NoSC), only scatter (NoAC_SC) and without corrections (NoAC_NoSC). Absorbed dose maps were calculated from the activity maps, quantified applying the patient relative calibration to the SPECT images. Whole Liver (WL) and Tumor (T) regions were drawn on CT images. Injected Liver (IL) region was defined including the voxels receiving absorbed dose >3.8 Gy/GBq. Whole Healthy Liver (WHL) and Healthy Injected Liver (HIL) regions were obtained as WHL = WL - T and HIL = IL - T. Average absorbed dose to WHL and HIL were calculated, and the injection activity was derived following each Institute's procedure. The values obtained from AC_NoSC, NoAC_SC and NoAC_NoSC images were compared to the reference value suggested by AC_SC images using Bland-Altman analysis and Wilcoxon paired test (5% significance threshold). Absorbed-dose maps were compared to the reference map (AC_SC) in global terms using the Voxel Normalized Mean Square Error (%VNMSE), and at voxel level by calculating for each voxel the normalized difference with the reference value. The uncertainty affecting absorbed dose at voxel level was accounted for in the comparison; to this purpose, the voxel counts fluctuation due to Poisson and reconstruction noise was estimated from SPECT images of a water phantom acquired and reconstructed as patient images. NoAC_SC images lead to activity prescriptions not significantly different from the
Does hospital accreditation impact bariatric surgery safety?
Morton, John M; Garg, Trit; Nguyen, Ninh
2014-09-01
To evaluate the impact of hospital accreditation upon bariatric surgery outcomes. Since 2004, the American College of Surgeons and the American Society of Metabolic and Bariatric Surgery have accredited bariatric hospitals. Few studies have evaluated the impact of hospital accreditation on all bariatric surgery outcomes. Bariatric surgery hospitalizations were identified using International Classification of Diseases, Ninth Revision (ICD9) codes in the 2010 Nationwide Inpatient Sample (NIS). Hospital names and American Hospital Association (AHA) codes were used to identify accredited bariatric centers. Relevant ICD9 codes were used for identifying demographics, length of stay (LOS), total charges, mortality, complications, and failure to rescue (FTR) events. There were 117,478 weighted bariatric patient discharges corresponding to 235 unique hospitals in the 2010 NIS data set. A total of 72,615 (61.8%) weighted discharges, corresponding to 145 (61.7%) named or AHA-identifiable hospitals were included. Among the 145 hospitals, 66 (45.5%) were unaccredited and 79 (54.5%) accredited. Compared with accredited centers, unaccredited centers had a higher mean LOS (2.25 vs 1.99 days, P < 0.0001), as well as total charges ($51,189 vs $42,212, P < 0.0001). Incidence of any complication was higher at unaccredited centers than at accredited centers (12.3% vs 11.3%, P = 0.001), as was mortality (0.13% vs 0.07%, P = 0.019) and FTR (0.97% vs 0.55%, P = 0.046). Multivariable logistic regression analysis identified unaccredited status as a positive predictor of incidence of complication [odds ratio (OR) = 1.08, P < 0.0001], as well as mortality (OR = 2.13, P = 0.013). Hospital accreditation status is associated with safer outcomes, shorter LOS, and lower total charges after bariatric surgery.
Accreditation standards for undergraduate forensic science programs
NASA Astrophysics Data System (ADS)
Miller, Marilyn Tebbs
Undergraduate forensic science programs are experiencing unprecedented growth in numbers of programs offered and, as a result, student enrollments are increasing. Currently, however, these programs are not subject to professional specialized accreditation. This study sought to identify desirable student outcome measures for undergraduate forensic science programs that should be incorporated into such an accreditation process. To determine desirable student outcomes, three types of data were collected and analyzed. All the existing undergraduate forensic science programs in the United States were examined with regard to the input measures of degree requirements and curriculum content, and for the output measures of mission statements and student competencies. Accreditation procedures and guidelines for three other science-based disciplines, computer science, dietetics, and nursing, were examined to provide guidance on accreditation processes for forensic science education programs. Expert opinion on outcomes for program graduates was solicited from the major stakeholders of undergraduate forensic science programs-forensic science educators, crime laboratory directors, and recent graduates. Opinions were gathered by using a structured Internet-based survey; the total response rate was 48%. Examination of the existing undergraduate forensic science programs revealed that these programs do not use outcome measures. Of the accreditation processes for other science-based programs, nursing education provided the best model for forensic science education, due primarily to the balance between the generality and the specificity of the outcome measures. From the analysis of the questionnaire data, preliminary student outcomes, both general and discipline-specific, suitable for use in the accreditation of undergraduate forensic science programs were determined. The preliminary results were reviewed by a panel of experts and, based on their recommendations, the outcomes
7 CFR 205.507 - Denial of accreditation.
Code of Federal Regulations, 2010 CFR
2010-01-01
..., Inspections, Marketing Practices), DEPARTMENT OF AGRICULTURE (CONTINUED) ORGANIC FOODS PRODUCTION ACT PROVISIONS NATIONAL ORGANIC PROGRAM Accreditation of Certifying Agents § 205.507 Denial of accreditation. (a...
Accreditation Standards: Policies, Procedures, and Criteria. Revised Edition.
ERIC Educational Resources Information Center
Association of Independent Colleges and Schools, Washington, DC.
Statements of policies and procedures and evaluation criteria used by the Accrediting Commission of the Association of Independent Colleges and Schools are presented. The organization and function of the Accrediting Commission, the bases of eligibility for evaluation and accreditation of all types of institutions, and the general classification of…
34 CFR 602.12 - Accrediting experience.
Code of Federal Regulations, 2010 CFR
2010-07-01
... 34 Education 3 2010-07-01 2010-07-01 false Accrediting experience. 602.12 Section 602.12 Education Regulations of the Offices of the Department of Education (Continued) OFFICE OF POSTSECONDARY EDUCATION, DEPARTMENT OF EDUCATION THE SECRETARY'S RECOGNITION OF ACCREDITING AGENCIES The Criteria for Recognition...
42 CFR 414.68 - Imaging accreditation.
Code of Federal Regulations, 2013 CFR
2013-10-01
...) Computed tomography. (iii) Nuclear medicine. (iv) Positron emission tomography. CMS-approved accreditation... if CMS takes an adverse action based on accreditation findings. (vi) Notify CMS, in writing... organization must permit its surveyors to serve as witnesses if CMS takes an adverse action based on...
42 CFR 414.68 - Imaging accreditation.
Code of Federal Regulations, 2014 CFR
2014-10-01
...) Computed tomography. (iii) Nuclear medicine. (iv) Positron emission tomography. CMS-approved accreditation... if CMS takes an adverse action based on accreditation findings. (vi) Notify CMS, in writing... organization must permit its surveyors to serve as witnesses if CMS takes an adverse action based on...
42 CFR 414.68 - Imaging accreditation.
Code of Federal Regulations, 2012 CFR
2012-10-01
...) Computed tomography. (iii) Nuclear medicine. (iv) Positron emission tomography. CMS-approved accreditation... if CMS takes an adverse action based on accreditation findings. (vi) Notify CMS, in writing... organization must permit its surveyors to serve as witnesses if CMS takes an adverse action based on...
15 CFR 285.9 - Granting accreditation.
Code of Federal Regulations, 2010 CFR
2010-01-01
... 15 Commerce and Foreign Trade 1 2010-01-01 2010-01-01 false Granting accreditation. 285.9 Section 285.9 Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY, DEPARTMENT OF COMMERCE ACCREDITATION AND ASSESSMENT PROGRAMS NATIONAL...
42 CFR 422.157 - Accreditation organizations.
Code of Federal Regulations, 2011 CFR
2011-10-01
... 42 Public Health 3 2011-10-01 2011-10-01 false Accreditation organizations. 422.157 Section 422.157 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF HEALTH AND HUMAN SERVICES...-walk reflecting the new requirements; and (iii) An explanation of how the accreditation organization...
42 CFR 423.168 - Accreditation organizations.
Code of Federal Regulations, 2014 CFR
2014-10-01
... any proposed changes in its accreditation standards or requirements or survey process. If the... application and enforcement of those standards to the comparable CMS requirements and processes when— (i) CMS imposes new requirements or changes its survey process; (ii) An accreditation organization proposes to...
42 CFR 423.168 - Accreditation organizations.
Code of Federal Regulations, 2013 CFR
2013-10-01
... any proposed changes in its accreditation standards or requirements or survey process. If the... application and enforcement of those standards to the comparable CMS requirements and processes when— (i) CMS imposes new requirements or changes its survey process; (ii) An accreditation organization proposes to...
42 CFR 423.168 - Accreditation organizations.
Code of Federal Regulations, 2011 CFR
2011-10-01
... any proposed changes in its accreditation standards or requirements or survey process. If the... application and enforcement of those standards to the comparable CMS requirements and processes when— (i) CMS imposes new requirements or changes its survey process; (ii) An accreditation organization proposes to...
42 CFR 423.168 - Accreditation organizations.
Code of Federal Regulations, 2012 CFR
2012-10-01
... any proposed changes in its accreditation standards or requirements or survey process. If the... application and enforcement of those standards to the comparable CMS requirements and processes when— (i) CMS imposes new requirements or changes its survey process; (ii) An accreditation organization proposes to...
The current status of forensic science laboratory accreditation in Europe.
Malkoc, Ekrem; Neuteboom, Wim
2007-04-11
Forensic science is gaining some solid ground in the area of effective crime prevention, especially in the areas where more sophisticated use of available technology is prevalent. All it takes is high-level cooperation among nations that can help them deal with criminality that adopts a cross-border nature more and more. It is apparent that cooperation will not be enough on its own and this development will require a network of qualified forensic laboratories spread over Europe. It is argued in this paper that forensic science laboratories play an important role in the fight against crime. Another, complimentary argument is that forensic science laboratories need to be better involved in the fight against crime. For this to be achieved, a good level of cooperation should be established and maintained. It is also noted that harmonization is required for such cooperation and seeking accreditation according to an internationally acceptable standard, such as ISO/IEC 17025, will eventually bring harmonization as an end result. Because, ISO/IEC 17025 as an international standard, has been a tool that helps forensic science laboratories in the current trend towards accreditation that can be observed not only in Europe, but also in the rest of the world of forensic science. In the introduction part, ISO/IEC 17025 states that "the acceptance of testing and calibration results between countries should be facilitated if laboratories comply with this international standard and if they obtain accreditation from bodies which have entered into mutual recognition agreements with equivalent bodies in other countries using this international standard." Furthermore, it is emphasized that the use of this international standard will assist in the harmonization of standards and procedures. The background of forensic science cooperation in Europe will be explained by using an existing European forensic science network, i.e. ENFSI, in order to understand the current status of forensic
Understanding stakeholders' perspectives and experiences of general practice accreditation.
Debono, Deborah; Greenfield, David; Testa, Luke; Mumford, Virginia; Hogden, Anne; Pawsey, Marjorie; Westbrook, Johanna; Braithwaite, Jeffrey
2017-07-01
To examine general practice accreditation stakeholders' perspectives and experiences to identify program strengths and areas for improvements. Individual (n=2) and group (n=9) interviews were conducted between September 2011-March 2012 with 52 stakeholders involved in accreditation in Australian general practices. Interviews were recorded, transcribed and thematically analysed. Member checking activities in April 2016 assessed the credibility and currency of the findings in light of current reforms. Overall, participants endorsed the accreditation program but identified several areas of concern. Noted strengths of the program included: program ownership, peer review and collaborative learning; access to Practice Incentives Program payments; and, improvements in safety and quality. Noted limitations in these and other aspects of the program offer potential for improvement: evidence for the impact of accreditation; resource demands; clearer outcome measures; and, specific experiences of accreditation. The effectiveness of accreditation as a strategy to improve safety and quality was shaped by the attitudes and experience of stakeholders. Strengths and weaknesses in the accreditation program influence, and are influenced by, stakeholder engagement and disengagement. After several accreditation cycles, the sector has the opportunity to reflect on, review and improve the process. This will be important if the continued or extended engagement of practices is to be realised to assure the continuation and effectiveness of the accreditation program. Copyright © 2017 Elsevier B.V. All rights reserved.
Hosseini Pooya, SM; Orouji, T
2014-01-01
Background: The accurate results of the individual doses in personal dosimety which are reported by the service providers in personal dosimetry are very important. There are national / international criteria for acceptable dosimetry system performance. Objective: In this research, the sources of uncertainties are identified, measured and calculated in a personal dosimetry system by TLD. Method: These sources are included; inhomogeneity of TLDs sensitivity, variability of TLD readings due to limited sensitivity and background, energy dependence, directional dependence, non-linearity of the response, fading, dependent on ambient temperature / humidity and calibration errors, which may affect on the dose responses. Some parameters which influence on the above sources of uncertainty are studied for Harshaw TLD-100 cards dosimeters as well as the hot gas Harshaw 6600 TLD reader system. Results: The individual uncertainties of each sources was measured less than 6.7% in 68% confidence level. The total uncertainty was calculated 17.5% with 95% confidence level. Conclusion: The TLD-100 personal dosimeters as well as the Harshaw TLD-100 reader 6600 system show the total uncertainty value which is less than that of admissible value of 42% for personal dosimetry services. PMID:25505769
Administrative Practices of Accredited Adventure Programs.
ERIC Educational Resources Information Center
Gass, Michael, Ed.
In response to the growth and diversification of adventure programming, the Association for Experiential Education developed an accreditation process that addresses both the fluid nature of adventure programming and the need for specificity in standards. This book describes exemplary administrative practices and policies of accredited adventure…
ERIC Educational Resources Information Center
Abou-Warda, Sherein H.
2014-01-01
Higher education institutions are increasingly concerned about accreditation. Although sustainable market orientation (SMO) bears on academic accreditation, to date, no study has developed a valid scale of SMO or assessed its influence on accreditation. The purpose of this paper is to construct and validate an SMO scale that was developed in…
Accreditation in a public hospital: perceptions of a multidisciplinary team.
Camillo, Nadia Raquel Suzini; Oliveira, João Lucas Campos de; Bellucci Junior, José Aparecido; Cervilheri, Andressa Hirata; Haddad, Maria do Carmo Fernandez Lourenço; Matsuda, Laura Misue
2016-06-01
to analyze the perceptions of the multidisciplinary team on Accreditation in a public hospital. descriptive, exploratory, qualitative research, performed in May 2014, using recorded individual interviews. In total, 28 employees of a public hospital, Accredited with Excellence, answered the guiding question: "Tell me about the Accreditation system used in this hospital". The interviews were transcribed and subjected to content analysis. of the speeches, three categories emerged: Advantages offered by the Accreditation; Accredited public hospital resembling a private hospital; Pride/satisfaction for acting in an accredited public hospital. participants perceived Accreditation as a favorable system for a quality management in the public service because it promotes the development of professional skills and improves cost management, organizational structure, management of assistance and perception of job pride/satisfaction.
Mozambique's journey toward accreditation of the National Tuberculosis Reference Laboratory.
Viegas, Sofia O; Azam, Khalide; Madeira, Carla; Aguiar, Carmen; Dolores, Carolina; Mandlaze, Ana P; Chongo, Patrina; Masamha, Jessina; Cirillo, Daniela M; Jani, Ilesh V; Gudo, Eduardo S
2017-01-01
Internationally-accredited laboratories are recognised for their superior test reliability, operational performance, quality management and competence. In a bid to meet international quality standards, the Mozambique National Institute of Health enrolled the National Tuberculosis Reference Laboratory (NTRL) in a continuous quality improvement process towards ISO 15189 accreditation. Here, we describe the road map taken by the NTRL to achieve international accreditation. The NTRL adopted the Strengthening Laboratory Management Toward Accreditation (SLMTA) programme as a strategy to implement a quality management system. After SLMTA, the Mozambique National Institute of Health committed to accelerate the NTRL's process toward accreditation. An action plan was designed to streamline the process. Quality indicators were defined to benchmark progress. Staff were trained to improve performance. Mentorship from an experienced assessor was provided. Fulfilment of accreditation standards was assessed by the Portuguese Accreditation Board. Of the eight laboratories participating in SLMTA, the NTRL was the best-performing laboratory, achieving a 53.6% improvement over the SLMTA baseline conducted in February 2011 to the Stepwise Laboratory Quality Improvement Process Towards Accreditation (SLIPTA) assessment in June 2013. During the accreditation assessment in September 2014, 25 minor nonconformities were identified and addressed. In March 2015, the NTRL received Portuguese Accreditation Board recognition of technical competency for fluorescence smear microscopy, and solid and liquid culture. The NTRL is the first laboratory in Mozambique to achieve ISO 15189 accreditation. From our experience, accreditation was made possible by institutional commitment, strong laboratory leadership, staff motivation, adequate infrastructure and a comprehensive action plan.
Melhem, N; El Balaa, H; Younes, G; Al Kattar, Z
2017-06-15
The Secondary Standard Dosimetry Laboratory at the Lebanese Atomic Energy Commission has different calibration methods for various types of dosimeters used in industrial, military and medical fields. The calibration is performed using different beams of X-rays (low and medium energy) and Gamma radiation delivered by a Cesium 137 source. The Secondary Standard Dosimetry laboratory in charge of calibration services uses different protocols for the determination of high and low air kerma rate and for narrow and wide series. In order to perform this calibration work, it is very important to identify all the beam characteristics for the different types of sources and qualities of radiation. The following work describes the methods used for the determination of different beam characteristics and calibration coefficients with their uncertainties in order to enhance the radiation protection of workers and patient applications in the fields of medical diagnosis and industrial X-ray. All the characteristics of the X-ray beams are determined for the narrow spectrum series in the 40 and 200 keV range where the inherent filtration, the current intensity, the high voltage, the beam profile and the total uncertainty are the specific characteristics of these X-ray beams. An X-ray software was developed in order to visualize the reference values according to the characteristics of each beam. © The Author 2016. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.
Improving Outcome Assessment in Information Technology Program Accreditation
ERIC Educational Resources Information Center
Goda, Bryan S.; Reynolds, Charles
2010-01-01
As of March 2010, there were fourteen Information Technology programs accredited by the Accreditation Board for Engineering and Technology, known as ABET, Inc (ABET Inc. 2009). ABET Inc. is the only recognized institution for the accreditation of engineering, computing, and technology programs in the U.S. There are currently over 128 U.S. schools…
Redesigning Regional Accreditation: The Impact on Institutional Planning
ERIC Educational Resources Information Center
Jackson, Rudolph S.; Davis, Jimmy H.; Jackson, Francesina R.
2010-01-01
Regional accreditation, the "gold standard" of higher education institutional quality, has been around at least since the 1850s (Ewell 2008). In "U.S. Accreditation and the Future of Quality Assurance," Ewell (2008) describes four distinct periods in the history of accreditation in the United States, which range from defining a college to the…
DOE Office of Scientific and Technical Information (OSTI.GOV)
Schmidt, M; Knutson, N; University of Rhode Island, Kingston, RI
2016-06-15
Purpose: Development of an in-house program facilitates a workflow that allows Electronic Portal Imaging Device (EPID) patient specific quality assurance (QA) measurements to be acquired and analyzed in the Portal Dosimetry Application (Varian Medical Systems, Palo Alto, CA) using a non-Aria Record and Verify (R&V) system (MOSAIQ, Elekta, Crawley, UK) to deliver beams in standard clinical treatment mode. Methods: Initial calibration of an in-house software tool includes characterization of EPID dosimetry parameters by importing DICOM images of varying delivered MUs to determine linear mapping factors in order to convert image pixel values to Varian-defined Calibrated Units (CU). Using this information,more » the Portal Dose Image Prediction (PDIP) algorithm was commissioned by converting images of various field sizes to output factors using the Eclipse Scripting Application Programming Interface (ESAPI) and converting a delivered configuration fluence to absolute dose units. To verify the algorithm configuration, an integrated image was acquired, exported directly from the R&V client, automatically converted to a compatible, calibrated dosimetric image, and compared to a PDIP calculated image using Varian’s Portal Dosimetry Application. Results: For two C-Series and one TrueBeam Varian linear accelerators, gamma comparisons (global 3% / 3mm) of PDIP algorithm predicted dosimetric images and images converted via the inhouse system demonstrated agreement for ≥99% of all pixels, exceeding vendor-recommended commissioning guidelines. Conclusion: Combinations of a programmatic image conversion tool and ESAPI allow for an efficient and accurate method of patient IMRT QA incorporating a 3rd party R&V system.« less
MAGIC-f Gel in Nuclear Medicine Dosimetry: study in an external beam of Iodine-131
NASA Astrophysics Data System (ADS)
Schwarcke, M.; Marques, T.; Garrido, C.; Nicolucci, P.; Baffa, O.
2010-11-01
MAGIC-f gel applicability in Nuclear Medicine dosimetry was investigated by exposure to a 131I source. Calibration was made to provide known absorbed doses in different positions around the source. The absorbed dose in gel was compared with a Monte Carlo Simulation using PENELOPE code and a thermoluminescent dosimetry (TLD). Using MRI analysis for the gel a R2-dose sensitivity of 0.23 s-1Gy-1was obtained. The agreement between dose-distance curves obtained with Monte Carlo simulation and TLD was better than 97% and for MAGIC-f and TLD was better than 98%. The results show the potential of polymer gel for application in nuclear medicine where three dimensional dose distribution is demanded.
[The application of non-annealing thermoluminescent dosimetry (TLD)].
Wu, J M; Chen, C S; Lan, R H
1993-06-01
Conventional use of Thermoluminescence (TL) in radiation dosimetry is very time-consuming. It requires repeating the procedures of preheating and annealing. In an attempt to simplify these procedures, we conducted an experiment of non-annealing TL dosimetry. This article reports the experiment's results. We adopted Lithium Fluoride (LiF) chip (TLD-100) in polystyrene under the exposure of Co-60, and the result was taken by HAR-SHAW-4000 TL reading system. The TL response was analyzed, including linearity, reproducibility and fading test. Because non-annealing TL response was greatly influenced by residual electron, TLD calibration curves were separated into two parts: (1) high dose region (HDR, 50-1500 cGy); (2) low dose region (LDR, 0-50 cGy). When TL dosimeters were exposed to a single high does (about 500 cGy), the HDR could be reproduced within 3% and fit a good linearity. For LDR, we had to give up the tail of glow curve in the high temperature region. We could then get good linearity and reproducibility. Furthermore, fading of non-annealing was apparently larger than annealing. We could control the fading of non-annealing was apparently larger than annealing. We could control the fading influence within 1% by taking the TL reading one hour after exposure. On the other hand, a combination of photon and electron exposure was also performed by non-annealing TL dosimetry. The results were compatible with Co-60 exposure in the same system.
Management changes resulting from hospital accreditation 1
de Oliveira, João Lucas Campos; Gabriel, Carmen Silvia; Fertonani, Hosanna Pattrig; Matsuda, Laura Misue
2017-01-01
ABSTRACT Objective: to analyze managers and professionals' perceptions on the changes in hospital management deriving from accreditation. Method: descriptive study with qualitative approach. The participants were five hospital quality managers and 91 other professionals from a wide range of professional categories, hierarchical levels and activity areas at four hospitals in the South of Brazil certified at different levels in the Brazilian accreditation system. They answered the question "Tell me about the management of this hospital before and after the Accreditation". The data were recorded, fully transcribed and transported to the software ATLAS.ti, version 7.1 for access and management. Then, thematic content analysis was applied within the reference framework of Avedis Donabedian's Evaluation in Health. Results: one large family was apprehended, called "Management Changes Resulting from the Accreditation: perspectives of managers and professionals" and five codes, related to the management changes in the operational, structural, financial and cost; top hospital management and quality management domains. Conclusion: the management changes in the hospital organizations resulting from the Accreditation were broad, multifaceted and in line with the improvements of the service quality. PMID:28301031
ERIC Educational Resources Information Center
Borders, L. DiAnne; Wester, Kelly L.; Fickling, Melissa J.; Adamson, Nicole A.
2014-01-01
Faculty in 38 doctoral counselor education programs accredited by the Council for Accreditation of Counseling and Related Educational Programs identified the quantitative and qualitative designs and other research topics that were covered in required and elective course work, discipline of course instructors, and opportunities for doctoral…
ERIC Educational Resources Information Center
National Home Study Council, Washington, DC. Accrediting Commission.
This collection of 10 essays is the outgrowth of a 1983 Accrediting Commission meeting which examined the implications for accreditation of the "Green Chair Group" report entitled "Predicting Distant Education in the Year 2001," an earlier document containing the predictions of 25 educators and executives concerning…
Comparing Public Quality Ratings for Accredited and Nonaccredited Nursing Homes.
Williams, Scott C; Morton, David J; Braun, Barbara I; Longo, Beth Ann; Baker, David W
2017-01-01
Compare quality ratings of accredited and nonaccredited nursing homes using the publicly available Centers for Medicare and Medicaid Services (CMS) Nursing Home Compare data set. This cross-sectional study compared the performance of 711 Joint Commission-accredited (TJC-accredited) nursing homes (81 of which also had Post-Acute Care Certification) to 14,926 non-Joint Commission-accredited (non-TJC-accredited) facilities using the Nursing Home Compare data set (as downloaded on April 2015). Measures included the overall Five-Star Quality Rating and its 4 components (health inspection, quality measures, staffing, and RN staffing), the 18 Nursing Home Compare quality measures (5 short-stay measures, 13 long-stay measures), as well as inspection deficiencies, fines, and payment denials. t tests were used to assess differences in rates for TJC-accredited nursing homes versus non-TJC-accredited nursing homes for quality measures, ratings, and fine amounts. Analysis of variance models were used to determine differences in rates using Joint Commission accreditation status, nursing home size based on number of beds, and ownership type. An additional model with an interaction term using Joint Commission accreditation status and Joint Commission Post-Acute Care Certification status was used to determine differences in rates for Post-Acute Care Certified nursing homes. Binary variables (eg, deficiency type, fines, and payment denials) were evaluated using a logistic regression model with the same covariates. After controlling for the influences of facility size and ownership type, TJC-accredited nursing homes had significantly higher star ratings than non-TJC-accredited nursing homes on each of the star rating component subscales (P < .05) (but not on the overall star rating), and TJC-accredited nursing homes with Post-Acute Care Certification performed statistically better on the overall star rating, as well as 3 of the 4 subscales (P < .05). TJC-accredited nursing homes
Accredited Internship and Postdoctoral Programs for Training in Psychology: 2008
ERIC Educational Resources Information Center
American Psychologist, 2008
2008-01-01
This article provides an official listing of accredited internship and postdoctoral residency programs. It reflects all Commission on Accreditation decisions through July 20, 2008. The Commission on Accreditation has accredited the predoctoral internship and postdoctoral residency training programs in psychology offered by the agencies listed. The…
Liulin-type spectrometry-dosimetry instruments.
Dachev, Ts; Dimitrov, Pl; Tomov, B; Matviichuk, Yu; Spurny, F; Ploc, O; Brabcova, K; Jadrnickova, I
2011-03-01
The main purpose of Liulin-type spectrometry-dosimetry instruments (LSDIs) is cosmic radiation monitoring at the workplaces. An LSDI functionally is a low mass, low power consumption or battery-operated dosemeter. LSDIs were calibrated in a wide range of radiation fields, including radiation sources, proton and heavy-ion accelerators and CERN-EC high-energy reference field. Since 2000, LSDIs have been used in the scientific programmes of four manned space flights on the American Laboratory and ESA Columbus modules and on the Russian segment of the International Space Station, one Moon spacecraft and three spacecraft around the Earth, one rocket, two balloons and many aircraft flights. In addition to relative low price, LSDIs have proved their ability to qualify the radiation field on the ground and on the above-mentioned carriers.
Calibrating/testing meters in hot water test bench VM7
NASA Astrophysics Data System (ADS)
Kling, E.; Stolt, K.; Lau, P.; Mattiasson, K.
A Hot Water Test Bench, VM7, has been developed and constructed for the calibration and testing of volume and flowmeters, in a project at the National Volume Measurement Laboratory at the Swedish National Testing and Research Institute. The intended area of use includes use as a reference at audit measurements, e.g. for accredited laboratories, calibration of meters for the industry and for the testing of hot water meters. The objective of the project, which was initiated in 1989, was to design equipment with stable flow and with a minimal temperature drop even at very low flow rates. The principle of the design is a closed system with two pressure tanks at different pressures. The water is led from the high pressure tank through the test object and the volume standard, in the form of master meters or a piston prover alternatively, to the low pressure tank. Calibrations/tests are made comparing the indication of the test object to that of master meters covering the current flow rate. These are, in the same test cycle, calibrated to the piston prover. Alternatively, the test object can be calibrated directly to the piston prover.
European guidelines for the accreditation of Sleep Medicine Centres.
Pevernagie, Dirk
2006-06-01
This document describes guidelines for accreditation of Sleep Medicine Centres in Europe. These guidelines are the result of a consensus procedure, in which representatives of the European Sleep Research Society (ESRS) and representatives of different European National Sleep Societies (ENSS) were involved. The information obtained during different rounds of consultation was gathered and processed by the members of the Steering Committee of the ESRS. The scope of the guidelines is to define the characteristics of multidisciplinary Sleep Medicine Centres (SMCs), in terms of requirements regarding staff, operational procedures and logistic facilities. Accreditation of SMCs is proposed to be the responsibility of the individual ENSS. The Accreditation Guidelines may thus be considered an instrument for the national societies to develop new or standardize existing accreditation questionnaires, as well as procedures for visiting the site, drafting the accreditation report, and finally, granting the accreditation. The Accreditation Guidelines are meant to be a line of action, that ideally should be followed as close as possible, but that may be subject to certain exceptions, depending on local customs or regulations.
40 CFR 60.535 - Laboratory accreditation.
Code of Federal Regulations, 2013 CFR
2013-07-01
... Wood Heaters § 60.535 Laboratory accreditation. (a)(1) A laboratory may apply for accreditation by the Administrator to conduct wood heater certification tests pursuant to § 60.533. The application shall be in writing to: Emission Measurement Branch (MD-13), U.S. EPA, Research Triangle Park, NC 27711, Attn: Wood...
40 CFR 60.535 - Laboratory accreditation.
Code of Federal Regulations, 2014 CFR
2014-07-01
... Wood Heaters § 60.535 Laboratory accreditation. (a)(1) A laboratory may apply for accreditation by the Administrator to conduct wood heater certification tests pursuant to § 60.533. The application shall be in writing to: Emission Measurement Branch (MD-13), U.S. EPA, Research Triangle Park, NC 27711, Attn: Wood...
40 CFR 60.535 - Laboratory accreditation.
Code of Federal Regulations, 2012 CFR
2012-07-01
... Wood Heaters § 60.535 Laboratory accreditation. (a)(1) A laboratory may apply for accreditation by the Administrator to conduct wood heater certification tests pursuant to § 60.533. The application shall be in writing to: Emission Measurement Branch (MD-13), U.S. EPA, Research Triangle Park, NC 27711, Attn: Wood...
Regulatory Relief for Accreditation. Position Paper
ERIC Educational Resources Information Center
Council for Higher Education Accreditation, 2017
2017-01-01
The purpose of this Council for Higher Education Accreditation Position Paper is to offer proposals for the reduction of federal regulation as this applies to accreditation, whether in law, regulation or sub-regulatory guidance, acknowledging that the major challenge is at the regulatory/subregulatory levels. This reduction is not intended nor…
40 CFR 60.535 - Laboratory accreditation.
Code of Federal Regulations, 2010 CFR
2010-07-01
... Wood Heaters § 60.535 Laboratory accreditation. (a)(1) A laboratory may apply for accreditation by the Administrator to conduct wood heater certification tests pursuant to § 60.533. The application shall be in writing to: Emission Measurement Branch (MD-13), U.S. EPA, Research Triangle Park, NC 27711, Attn: Wood...
40 CFR 60.535 - Laboratory accreditation.
Code of Federal Regulations, 2011 CFR
2011-07-01
... Wood Heaters § 60.535 Laboratory accreditation. (a)(1) A laboratory may apply for accreditation by the Administrator to conduct wood heater certification tests pursuant to § 60.533. The application shall be in writing to: Emission Measurement Branch (MD-13), U.S. EPA, Research Triangle Park, NC 27711, Attn: Wood...
Practitioner Perceptions of Advertising Education Accreditation.
ERIC Educational Resources Information Center
Vance, Donald
According to a 1981 survey, advertising practitioners place more importance on the accreditation of college advertising programs when it comes to evaluating a graduate of such a program than do the educators who must earn the accreditation. Only directors of advertising education programs in the communication-journalism area that are currently…
ERIC Educational Resources Information Center
Council for Higher Education Accreditation, 2013
2013-01-01
This joint American Association of University Professors-Council for Higher Education advisory statement addresses the role that accreditation plays in sustaining and enhancing academic freedom in the context of review of institutions and programs for quality. It offers five suggestions about the role of accreditation with regard to academic…
Accreditation of Continuing Education: The Critical Elements.
ERIC Educational Resources Information Center
DeSilets, Lynore D.
1998-01-01
Reviews the history of accreditation in nursing continuing education, describes the system and process, and identifies institutional characteristics needed before beginning the process. Uses the American Nurses Center Commission on Accreditation model. (Author/SK)
[Self-audit and tutor accreditation].
Ezquerra Lezcano, Matilde; Tamayo Ojeda, Carmen; Calvet Junoy, Silvia; Avellana Revuelta, Esteve; Vila-Coll, María Antonia; Morera Jordán, Concepción
2010-02-01
To describe the experience of using self-audit (SA) as a means of accrediting family and community medicine tutors, to analyse the knowledge that the tutors have on this self-assessment methodology, and to record their opinions on this method. Retrospective descriptive study and analysis of an opinion questionnaire. Family and community medicine teaching units (TU) in Catalonia. Tutors from family and community medicine TU in Catalonia (July 2001-July 2008). Training of the tutors in SA methodology, creation of a reference group and a correction cycle. Correction by peers of the SAs performed by the tutors according to previously determined criteria and subsequent issue of a report-feedback. Self-administered questionnaire by a group of TU tutors. A total of 673 SA were performed. The most frequent topic selected was diabetes mellitus in 27.9% of cases. The overall evaluation of the SA from a methodological point of view was correct in 44.5% of cases, improvable in 45.3%, and deficient in 10.2%. A total of 300 opinion questionnaires were issued. The response rate was 151/300 (50.03%). On the question about the usefulness of the SA in professional practice, 12% considered it very useful, 56% adequate, and 32% of little use or not useful. As regards whether it was a good means for the re-accreditation or accreditation of tutors, 66% considered that it was not. A high percentage of the SAs analysed are not carried out correctly, which indicates that tutors do not know this self-assessment method very well. They consider that SAs are a useful tool for improving clinical practice, but not a good means for accreditation and re-accreditation.
AAALAC International Standards and Accreditation Process
Gettayacamin, Montip; Retnam, Leslie
2017-01-01
AAALAC International is a private, nonprofit organization that promotes humane treatment of animals in science through a voluntary international accreditation program. AAALAC International accreditation is recognized around the world as a symbol of high quality animal care and use for research, teaching and testing, as well as promoting animal welfare. Animals owned by the institution that are used for research, teaching and testing are included as part of an accredited program. More than 990 animal care and use institutions in 42 countries around the world (more than 170 programs in 13 countries in the Pacific Rim region) have earned AAALAC International accreditation. The AAALAC International Council on Accreditation evaluates overall performance and all aspects of an animal care and use program, involving an in-depth, multilayered, confidential peer-review process. The evaluators (site visitors) consider compliance with applicable local animal legislation of the host country, institutional policies, and employ a customized approach for evaluating overall program performance using a series of primary standards that include the Guide for the Care and Use of Laboratory Animals, the Guide for the Care and Use of Agricultural Animals in Research and Teaching, or the European Convention for the Protection of Vertebrate Animals Used for Experimental and Other Purposes, Council of Europe (ETS 123), and supplemental Reference Resources, as applicable. PMID:28744349
MO-B-BRB-04: 3D Dosimetry in End-To-End Dosimetry QA
DOE Office of Scientific and Technical Information (OSTI.GOV)
Ibbott, G.
Full three-dimensional (3D) dosimetry using volumetric chemical dosimeters probed by 3D imaging systems has long been a promising technique for the radiation therapy clinic, since it provides a unique methodology for dose measurements in the volume irradiated using complex conformal delivery techniques such as IMRT and VMAT. To date true 3D dosimetry is still not widely practiced in the community; it has been confined to centres of specialized expertise especially for quality assurance or commissioning roles where other dosimetry techniques are difficult to implement. The potential for improved clinical applicability has been advanced considerably in the last decade by themore » development of improved 3D dosimeters (e.g., radiochromic plastics, radiochromic gel dosimeters and normoxic polymer gel systems) and by improved readout protocols using optical computed tomography or magnetic resonance imaging. In this session, established users of some current 3D chemical dosimeters will briefly review the current status of 3D dosimetry, describe several dosimeters and their appropriate imaging for dose readout, present workflow procedures required for good dosimetry, and analyze some limitations for applications in select settings. We will review the application of 3D dosimetry to various clinical situations describing how 3D approaches can complement other dose delivery validation approaches already available in the clinic. The applications presented will be selected to inform attendees of the unique features provided by full 3D techniques. Learning Objectives: L. John Schreiner: Background and Motivation Understand recent developments enabling clinically practical 3D dosimetry, Appreciate 3D dosimetry workflow and dosimetry procedures, and Observe select examples from the clinic. Sofie Ceberg: Application to dynamic radiotherapy Observe full dosimetry under dynamic radiotherapy during respiratory motion, and Understand how the measurement of high resolution dose data
Early experiences of accredited clinical informatics fellowships.
Longhurst, Christopher A; Pageler, Natalie M; Palma, Jonathan P; Finnell, John T; Levy, Bruce P; Yackel, Thomas R; Mohan, Vishnu; Hersh, William R
2016-07-01
Since the launch of the clinical informatics subspecialty for physicians in 2013, over 1100 physicians have used the practice and education pathways to become board-certified in clinical informatics. Starting in 2018, only physicians who have completed a 2-year clinical informatics fellowship program accredited by the Accreditation Council on Graduate Medical Education will be eligible to take the board exam. The purpose of this viewpoint piece is to describe the collective experience of the first four programs accredited by the Accreditation Council on Graduate Medical Education and to share lessons learned in developing new fellowship programs in this novel medical subspecialty. © The Author 2016. Published by Oxford University Press on behalf of the American Medical Informatics Association. All rights reserved. For Permissions, please email: journals.permissions@oup.com.
9 CFR 439.5 - Applications for accreditation.
Code of Federal Regulations, 2011 CFR
2011-01-01
... ACCREDITATION OF NON-FEDERAL CHEMISTRY LABORATORIES § 439.5 Applications for accreditation. (a) Application for..., by the owner or manager of a non-Federal analytical laboratory. The forms shall be sent to the ALP or...
9 CFR 439.5 - Applications for accreditation.
Code of Federal Regulations, 2014 CFR
2014-01-01
... ACCREDITATION OF NON-FEDERAL CHEMISTRY LABORATORIES § 439.5 Applications for accreditation. (a) Application for..., by the owner or manager of a non-Federal analytical laboratory. The forms shall be sent to the ALP or...
9 CFR 439.5 - Applications for accreditation.
Code of Federal Regulations, 2012 CFR
2012-01-01
... ACCREDITATION OF NON-FEDERAL CHEMISTRY LABORATORIES § 439.5 Applications for accreditation. (a) Application for..., by the owner or manager of a non-Federal analytical laboratory. The forms shall be sent to the ALP or...
9 CFR 439.5 - Applications for accreditation.
Code of Federal Regulations, 2013 CFR
2013-01-01
... ACCREDITATION OF NON-FEDERAL CHEMISTRY LABORATORIES § 439.5 Applications for accreditation. (a) Application for..., by the owner or manager of a non-Federal analytical laboratory. The forms shall be sent to the ALP or...
Static and (quasi)dynamic calibration of stroboscopic scanning white light interferometer
NASA Astrophysics Data System (ADS)
Seppä, Jeremias; Kassamakov, Ivan; Nolvi, Anton; Heikkinen, Ville; Paulin, Tor; Lassila, Antti; Hao, Ling; Hæggsröm, Edward
2013-04-01
A scanning white light interferometer can characterize out of plane features and motion in M(N)EMS devices. Like any other form and displacement measuring instrument, the scanning interferometer results should be linked to the metre definition to be comparable and unambiguous. Traceability is built up by careful error characterization and calibration of the interferometer. The main challenge in this calibration is to have a reference device producing accurate and reproducible dynamic out-of-plane displacement when submitted to standard loads. We use a flat mirror attached to a piezoelectric transducer for static and (quasi)dynamic calibration of a stroboscopic scanning light interferometer. First we calibrated the piezo-scanned flexure guided transducer stage using a symmetric differential heterodyne laser interferometer developed at the Centre for Metrology and Accreditation (MIKES). The standard uncertainty of the piezo stage motion calibration was 3.0 nm. Then we used the piezo-stage as a transfer standard to calibrate our stroboscopic interferometer whose light source was pulsed at 200 Hz and 400 Hz with 0.5% duty cycle. We measured the static position and (quasi)dynamic motion of the attached mirror relative to a reference surface. This methodology permits calibrating the vertical scale of the stroboscopic scanning white light interferometer.
21 CFR 830.100 - FDA accreditation of an issuing agency.
Code of Federal Regulations, 2014 CFR
2014-04-01
... 21 Food and Drugs 8 2014-04-01 2014-04-01 false FDA accreditation of an issuing agency. 830.100... (CONTINUED) MEDICAL DEVICES UNIQUE DEVICE IDENTIFICATION FDA Accreditation of an Issuing Agency § 830.100 FDA... issuing agency. (b) Accreditation criteria. FDA may accredit an organization as an issuing agency, if the...
School Evaluation and Accreditation: A Bibliography of Research Studies.
ERIC Educational Resources Information Center
Diamond, Joan
1982-01-01
This 97-item bibliography cites research in the following categories: purposes and structures of school accreditation/evaluation; the school evaluation process, involving self-study, team visits, and implementation; evaluation of the accreditation/evaluation process; external factors influencing school accreditation/evaluation; and objectivity in…
Calibration of Photon Sources for Brachytherapy
NASA Astrophysics Data System (ADS)
Rijnders, Alex
Source calibration has to be considered an essential part of the quality assurance program in a brachytherapy department. Not only it will ensure that the source strength value used for dose calculation agrees within some predetermined limits to the value stated on the source certificate, but also it will ensure traceability to international standards. At present calibration is most often still given in terms of reference air kerma rate, although calibration in terms of absorbed dose to water would be closer to the users interest. It can be expected that in a near future several standard laboratories will be able to offer this latter service, and dosimetry protocols will have to be adapted in this way. In-air measurement using ionization chambers (e.g. a Baldwin—Farmer ionization chamber for 192Ir high dose rate HDR or pulsed dose rate PDR sources) is still considered the method of choice for high energy source calibration, but because of their ease of use and reliability well type chambers are becoming more popular and are nowadays often recommended as the standard equipment. For low energy sources well type chambers are in practice the only equipment available for calibration. Care should be taken that the chamber is calibrated at the standard laboratory for the same source type and model as used in the clinic, and using the same measurement conditions and setup. Several standard laboratories have difficulties to provide these calibration facilities, especially for the low energy seed sources (125I and 103Pd). Should a user not be able to obtain properly calibrated equipment to verify the brachytherapy sources used in his department, then at least for sources that are replaced on a regular basis, a consistency check program should be set up to ensure a minimal level of quality control before these sources are used for patient treatment.
EPR/PTFE dosimetry for test reactor environments
DOE Office of Scientific and Technical Information (OSTI.GOV)
Vehar, D.W.; Griffin, P.J.; Quirk, T.J.
2011-07-01
The use of Electron Paramagnetic Resonance (EPR) spectroscopy with materials such as alanine is well established as a technique for measurement of ionizing radiation absorbed dose in photon and electron fields such as Co-60, high-energy bremsstrahlung and electron-beam fields [1]. In fact, EPR/Alanine dosimetry has become a routine transfer standard for national standards bodies such as NIST and NPL. In 1992 the Radiation Metrology Laboratory (RML) at Sandia National Laboratories implemented EPR/Alanine capabilities for use in routine and calibration activities at its Co-60 and pulsed-power facilities. At that time it also investigated the usefulness of the system for measurement ofmore » absorbed dose in the mixed neutron/photon environments of reactors such as the Sandia Pulsed Reactor and the Annular Core Research Reactor used for hardness testing of electronics. The RML concluded that the neutron response of alanine was a sufficiently high fraction of the overall dosimeter response that the resulting uncertainties in the photon dose would be unacceptably large for silicon-device testing. However, it also suggested that non-hydrogenous materials such as polytetrafluoroethylene (PTFE) would exhibit smaller neutron response and might be useful in mixed environments. Preliminary research with PTFE in photon environments indicated considerable promise, but further development was not pursued at that time. Because of renewed interest in absorbed dose measurements that could better define the individual contributions of photon and neutron components to the overall dose delivered to a test object, the RML has re-initiated the development of an EPR/PTFE dosimetry system. This effort consists of three stages: 1) Identification of PTFE materials that may be suitable for dosimetry applications. It was speculated that the inconsistency of EPR signatures in the earlier samples may have been due to variability in PTFE manufacturing processes. 2) Characterization of
9 CFR 77.11 - Modified accredited States or zones.
Code of Federal Regulations, 2013 CFR
2013-01-01
... TUBERCULOSIS Cattle and Bison § 77.11 Modified accredited States or zones. (a) The following are modified... Rules—Bovine Tuberculosis Eradication” (January 22, 1999, edition), which is incorporated by reference... accredited States or zones and its being reclassified as accreditation preparatory. (d) If tuberculosis is...
9 CFR 77.11 - Modified accredited States or zones.
Code of Federal Regulations, 2012 CFR
2012-01-01
... TUBERCULOSIS Cattle and Bison § 77.11 Modified accredited States or zones. (a) The following are modified... Rules—Bovine Tuberculosis Eradication” (January 22, 1999, edition), which is incorporated by reference... accredited States or zones and its being reclassified as accreditation preparatory. (d) If tuberculosis is...
9 CFR 77.11 - Modified accredited States or zones.
Code of Federal Regulations, 2014 CFR
2014-01-01
... TUBERCULOSIS Cattle and Bison § 77.11 Modified accredited States or zones. (a) The following are modified... Rules—Bovine Tuberculosis Eradication” (January 22, 1999, edition), which is incorporated by reference... accredited States or zones and its being reclassified as accreditation preparatory. (d) If tuberculosis is...
9 CFR 77.11 - Modified accredited States or zones.
Code of Federal Regulations, 2011 CFR
2011-01-01
... TUBERCULOSIS Cattle and Bison § 77.11 Modified accredited States or zones. (a) The following are modified... herd test requirements contained in the “Uniform Methods and Rules—Bovine Tuberculosis Eradication... reclassified as accreditation preparatory. (d) If tuberculosis is diagnosed within a modified accredited State...
The Council on Aviation Accreditation: Part One - Historical Foundation
NASA Technical Reports Server (NTRS)
Prather, C. Daniel
2006-01-01
The Council on Aviation Accreditation (CAA) was established in 1988 in response to the need for formal, specialized accreditation of aviation academic programs, as expressed by institutional members of the University Aviation Association (UAA). The first aviation programs were accredited by the CAA in 1992, and today, the CAA lists 60 accredited programs at 21 institutions nationwide. Although the number of accredited programs has steadily grown, there are currently only 20 percent of UAA member institutions with CAA accredited programs. In an effort to further understand this issue, a case study of the CAA was performed, which resulted in a two-part case study report. Part one focuses on the following questions: (a) why was the CAA established and how has it evolved; (b) what is the purpose of the CAA; (c) how does a program become accredited by the CAA; and (d) what is the current environment in which the CAA operates. In answering these questions, various sources of data (such as CAA documents, magazine and journal articles, email inquiries, and an on-line survey) were utilized. Part one of this study resulted in a better understanding of the CAA, including its history, purpose, and the entire accreditation process. Part two will both examine the contemporary issues being faced by the CAA and provide recommendations to enhance the future growth of the organization.
Accreditation status of U.S. military graduate medical education programs.
De Lorenzo, Robert A
2008-07-01
Military graduate medical education (GME) comprises a substantial fraction of U.S. physician training capacity. The wars in Iraq and Afghanistan have placed substantial stress on military medicine, and lay and professional press accounts have raised awareness of the effects on military GME. To date, however, objective data on military GME quality remains sparse. Determine the accreditation status of U.S. military GME programs. Additionally, military GME program data will be compared to national (U.S.) accreditation lengths. Retrospective review of Accreditation Council for Graduate Medical Education (ACGME) data. All military-sponsored core programs in specialties with at least three residencies were included. Military-affiliated but civilian-sponsored programs were excluded. The current and past cycle data were used for the study. For each specialty, the current mean accreditation length and the net change in cycle was calculated. National mean accreditation lengths by specialty for 2005 to 2006 were obtained from the ACGME. Comparison between the overall mean national and military accreditation lengths was performed with a z test. All other comparisons employed descriptive statistics. Ninety-nine military programs in 15 specialties were included in the analysis. During the study period, 1 program was newly accredited, and 6 programs had accreditation withdrawn or were closed. The mean accreditation length of the military programs was 4.0 years. The overall national mean for the same specialties is 3.5 years (p < 0.01). In previous cycles, 68% of programs had accreditation of 4 years or longer, compared to 70% in the current cycle, while 13% had accreditation of 2 years or less in the previous cycle compared to 14% in the current cycle. Ten (68%) of the military specialties had mean accreditation lengths greater than the national average, while 5 (33%) were below it. Ten (68%) specialties had stable or improving cycle lengths when compared to previous cycles
9 CFR 161.3 - Standards for accredited veterinarian duties.
Code of Federal Regulations, 2010 CFR
2010-01-01
... legally able to practice veterinary medicine. An accredited veterinarian shall perform the functions of an... examine such an animal showing abnormalities, in order to determine whether or not there is clinical... accredited work, an accredited veterinarian shall take such measures of sanitation as are necessary to...
42 CFR 8.5 - Periodic evaluation of accreditation bodies.
Code of Federal Regulations, 2011 CFR
2011-10-01
... 42 Public Health 1 2011-10-01 2011-10-01 false Periodic evaluation of accreditation bodies. 8.5 Section 8.5 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL... accreditation bodies. SAMHSA will evaluate periodically the performance of accreditation bodies primarily by...
42 CFR 8.5 - Periodic evaluation of accreditation bodies.
Code of Federal Regulations, 2010 CFR
2010-10-01
... 42 Public Health 1 2010-10-01 2010-10-01 false Periodic evaluation of accreditation bodies. 8.5 Section 8.5 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL... accreditation bodies. SAMHSA will evaluate periodically the performance of accreditation bodies primarily by...
Ng, G K B; Leung, G K K; Johnston, J M; Cowling, B J
2013-10-01
The objectives of this review were to identify factors that influence implementation of hospital accreditation programmes and to assess the impact of the accreditation process on quality improvement in public hospitals. Two electronic databases, Medline (OvidSP) and PubMed, were systematically searched. "Public hospital", "hospital accreditation", and "quality improvement" were used as the search terms. A total of 348 citations were initially identified. After critical appraisal and study selection, 26 articles were included in the review. The data were extracted and analysed using a SWOT (strengths, weaknesses, opportunities, threats) analysis. Increased staff engagement and communication, multidisciplinary team building, positive changes in organisational culture, and enhanced leadership and staff awareness of continuous quality improvement were identified as strengths. Weaknesses included organisational resistance to change, increased staff workload, lack of awareness about continuous quality improvement, insufficient staff training and support for continuous quality improvement, lack of applicable accreditation standards for local use, and lack of performance outcome measures. Opportunities included identification of improvement areas, enhanced patient safety, additional funding, public recognition, and market advantage. Threats included opportunistic behaviours, funding cuts, lack of incentives for participation, and a regulatory approach to mandatory participation. By relating the findings to the operational issues of accreditation, this review discussed the implications for successful implementation and how accreditation may drive quality improvement. These findings have implications for various stakeholders (government, the public, patients and health care providers), when it comes to embarking on accreditation exercises.
NASA Astrophysics Data System (ADS)
Gustafsson, Johan; Brolin, Gustav; Cox, Maurice; Ljungberg, Michael; Johansson, Lena; Sjögreen Gleisner, Katarina
2015-11-01
A computer model of a patient-specific clinical 177Lu-DOTATATE therapy dosimetry system is constructed and used for investigating the variability of renal absorbed dose and biologically effective dose (BED) estimates. As patient models, three anthropomorphic computer phantoms coupled to a pharmacokinetic model of 177Lu-DOTATATE are used. Aspects included in the dosimetry-process model are the gamma-camera calibration via measurement of the system sensitivity, selection of imaging time points, generation of mass-density maps from CT, SPECT imaging, volume-of-interest delineation, calculation of absorbed-dose rate via a combination of local energy deposition for electrons and Monte Carlo simulations of photons, curve fitting and integration to absorbed dose and BED. By introducing variabilities in these steps the combined uncertainty in the output quantity is determined. The importance of different sources of uncertainty is assessed by observing the decrease in standard deviation when removing a particular source. The obtained absorbed dose and BED standard deviations are approximately 6% and slightly higher if considering the root mean square error. The most important sources of variability are the compensation for partial volume effects via a recovery coefficient and the gamma-camera calibration via the system sensitivity.
Progress in high-dose radiation dosimetry. Final report
DOE Office of Scientific and Technical Information (OSTI.GOV)
Ettinger, K.V.; Nam, J.W.; McLaughlin, W.L.
1981-01-01
The last decade has witnessed a deluge of new high-dose dosimetry techniques and expended applications of methods developed earlier. Many of the principal systems are calibrated by means of calorimetry, although production of heat is not always the final radiation effect of interest. Requirements for a stable and reliable transfer dose meters have led to further developments of several important high-dose systems: thermoluminescent materials, radiochromic dyes, ceric-cerous solutions analyzed by high-frequency oscillometry. A number of other prospective dosimeters are also treated in this review. In addition, an IAEA program of high-dose intercomparison and standardization for industrial radiation processing is described.
Progress in high-dose radiation dosimetry. Final report
DOE Office of Scientific and Technical Information (OSTI.GOV)
Ettinger, K.V.; Nam, J.W.; McLaughlin, W.L.
1981-01-01
The last decade has witnessed a deluge of new high-dose dosimetry techniques and expended applications of methods developed earlier. Many of the principal systems are calibrated by means of calorimetry, although production of heat is not always the final radiation effect of interest. Requirements for a stable and reliable transfer dose meters have led to further developments of several important high-dose systems: thermoluminescent materials, radiochromic dyes, ceric-cerous solutions analyzed by high-frequency oscillometry. A number of other prospective dosimeters also treated in this review. In addition, an IAEA programme of high-dose intercomparison and standardization for industrial radiation processing is described.
The advantages of absorbed-dose calibration factors.
Rogers, D W
1992-01-01
A formalism for clinical external beam dosimetry based on use of ion chamber absorbed-dose calibration factors is outlined in the context and notation of the AAPM TG-21 protocol. It is shown that basing clinical dosimetry on absorbed-dose calibration factors ND leads to considerable simplification and reduced uncertainty in dose measurement. In keeping with a protocol which is used in Germany, a quantity kQ is defined which relates an absorbed-dose calibration factor in a beam of quality Q0 to that in a beam of quality Q. For 38 cylindrical ion chambers, two sets of values are presented for ND/NX and Ngas/ND and for kQ for photon beams with beam quality specified by the TPR20(10) ratio. One set is based on TG-21's protocol to allow the new formalism to be used while maintaining equivalence to the TG-21 protocol. To demonstrate the magnitude of the overall error in the TG-21 protocol, the other set uses corrected versions of the TG-21 equations and the more consistent physical data of the IAEA Code of Practice. Comparisons are made to procedures based on air-kerma or exposure calibration factors and it is shown that accuracy and simplicity are gained by avoiding the determination of Ngas from NX. It is also shown that the kQ approach simplifies the use of plastic phantoms in photon beams since kQ values change by less than 0.6% compared to those in water although an overall correction factor of 0.973 is needed to go from absorbed dose in water calibration factors to those in PMMA or polystyrene. Values of kQ calculated using the IAEA Code of Practice are presented but are shown to be anomalous because of the way the effective point of measurement changes for 60Co beams. In photon beams the major difference between the IAEA Code of Practice and the corrected AAPM TG-21 protocol is shown to be the Prepl correction factor. Calculated kQ curves and three parameter equations for them are presented for each wall material and are shown to represent accurately the kQ curve
45 CFR 2400.51 - Summer Institute accreditation.
Code of Federal Regulations, 2010 CFR
2010-10-01
... 45 Public Welfare 4 2010-10-01 2010-10-01 false Summer Institute accreditation. 2400.51 Section 2400.51 Public Welfare Regulations Relating to Public Welfare (Continued) JAMES MADISON MEMORIAL FELLOWSHIP FOUNDATION FELLOWSHIP PROGRAM REQUIREMENTS Graduate Study § 2400.51 Summer Institute accreditation...
45 CFR 2400.51 - Summer Institute accreditation.
Code of Federal Regulations, 2011 CFR
2011-10-01
... 45 Public Welfare 4 2011-10-01 2011-10-01 false Summer Institute accreditation. 2400.51 Section 2400.51 Public Welfare Regulations Relating to Public Welfare (Continued) JAMES MADISON MEMORIAL FELLOWSHIP FOUNDATION FELLOWSHIP PROGRAM REQUIREMENTS Graduate Study § 2400.51 Summer Institute accreditation...
Advanced radiochromic film methodologies for quantitative dosimetry of small and nonstandard fields
NASA Astrophysics Data System (ADS)
Rosen, Benjamin S.
Radiotherapy treatments with small and nonstandard fields are increasing in use as collimation and targeting become more advanced, which spare normal tissues while increasing tumor dose. However, dosimetry of small and nonstandard fields is more difficult than that of conventional fields due to loss of lateral charged-particle equilibrium, tight measurement setup requirements, source occlusion, and the volume-averaging effect of conventional dosimeters. This work aims to create new small and nonstandard field dosimetry protocols using radiochromic film (RCF) in conjunction with novel readout and analysis methodologies. It also is the intent of this work to develop an improved understanding of RCF structure and mechanics for its quantitative use in general applications. Conventional digitization techniques employ white-light, flatbed document scanners or scanning-laser densitometers which are not optimized for RCF dosimetry. A point-by-point precision laser densitometry system (LDS) was developed for this work to overcome the film-scanning artifacts associated with the use of conventional digitizers, such as positional scan dependence, off-axis light scatter, glass bed interference, and low signal-to-noise ratios. The LDS was shown to be optically traceable to national standards and to provide highly reproducible density measurements. Use of the LDS resulted in increased agreement between RCF dose measurements and the single-hit detector model of film response, facilitating traceable RCF calibrations based on calibrated physical quantities. GafchromicRTM EBT3 energy response to a variety of reference x-ray and gamma-ray beam qualities was also investigated. Conventional Monte Carlo methods are not capable of predicting film intrinsic energy response to arbitrary particle spectra. Therefore, a microdosimetric model was developed to simulate the underlying physics of the radiochromic mechanism and was shown to correctly predict the intrinsic response relative to a
The effect of dual accreditation on family medicine residency programs.
Mims, Lisa D; Bressler, Lindsey C; Wannamaker, Louise R; Carek, Peter J
2015-04-01
In 1985, the American Osteopathic Association (AOA) Board of Trustees agreed to allow residency programs to become dually accredited by the AOA and Accreditation Council for Graduate Medical Education (ACGME). Despite the increase in such programs, there has been minimal research comparing these programs to exclusively ACGME-accredited residencies. This study examines the association between dual accreditation and suggested markers of quality. Standard characteristics such as regional location, program structure (community or university based), postgraduate year one (PGY-1) positions offered, and salary (PGY-1) were obtained for each residency program. In addition, the faculty to resident ratio in the family medicine clinic and the number of half days residents spent in the clinic each week were recorded. Initial Match rates and pass rates of new graduates on the ABFM examination from 2009 to 2013 were also obtained. Variables were analyzed using chi-square and Student's t test. Logistic regression models were then created to predict a program's 5-year aggregate initial Match rate and Board pass rate in the top tertile as compared to the lowest tertile. Dual accreditation was obtained by 117 (27.0%) of programs. Initial analyses revealed associations between dually accredited programs and mean year of initial ACGME program accreditation, regional location, program structure, tracks, and alternative medicine curriculum. When evaluated in logistic regression, dual accreditation status was not associated with Match rates or ABFM pass rates. By examining suggested markers of program quality for dually accredited programs in comparison to ACGME-only accredited programs, this study successfully established both differences and similarities among the two types.
Mozambique’s journey toward accreditation of the National Tuberculosis Reference Laboratory
Madeira, Carla; Aguiar, Carmen; Dolores, Carolina; Mandlaze, Ana P.; Chongo, Patrina; Masamha, Jessina
2017-01-01
Background Internationally-accredited laboratories are recognised for their superior test reliability, operational performance, quality management and competence. In a bid to meet international quality standards, the Mozambique National Institute of Health enrolled the National Tuberculosis Reference Laboratory (NTRL) in a continuous quality improvement process towards ISO 15189 accreditation. Here, we describe the road map taken by the NTRL to achieve international accreditation. Methods The NTRL adopted the Strengthening Laboratory Management Toward Accreditation (SLMTA) programme as a strategy to implement a quality management system. After SLMTA, the Mozambique National Institute of Health committed to accelerate the NTRL’s process toward accreditation. An action plan was designed to streamline the process. Quality indicators were defined to benchmark progress. Staff were trained to improve performance. Mentorship from an experienced assessor was provided. Fulfilment of accreditation standards was assessed by the Portuguese Accreditation Board. Results Of the eight laboratories participating in SLMTA, the NTRL was the best-performing laboratory, achieving a 53.6% improvement over the SLMTA baseline conducted in February 2011 to the Stepwise Laboratory Quality Improvement Process Towards Accreditation (SLIPTA) assessment in June 2013. During the accreditation assessment in September 2014, 25 minor nonconformities were identified and addressed. In March 2015, the NTRL received Portuguese Accreditation Board recognition of technical competency for fluorescence smear microscopy, and solid and liquid culture. The NTRL is the first laboratory in Mozambique to achieve ISO 15189 accreditation. Conclusions From our experience, accreditation was made possible by institutional commitment, strong laboratory leadership, staff motivation, adequate infrastructure and a comprehensive action plan. PMID:28879162
International accreditation of ambulatory surgical centers and medical tourism.
McGuire, Michael F
2013-07-01
The two forces that have driven the increase in accreditation of outpatient ambulatory surgery centers (ASC's) in the United States are reimbursement of facility fees by Medicare and commercial insurance companies, which requires either accreditation, Medicare certification, or state licensure, and state laws which mandate one of these three options. Accreditation of ASC's internationally has been driven by national requirements and by the competitive forces of "medical tourism." The three American accrediting organizations have all developed international programs to meet this increasing demand outside of the United States. Copyright © 2013. Published by Elsevier Inc.
Accredited Institutions of Postsecondary Education, Programs, Candidates, 2001-2002.
ERIC Educational Resources Information Center
Von Alt, Kenneth A., Ed.
A comprehensive guide to institutions of higher learning that are accredited by national and regional accrediting agencies, this annual volume has been published since 1964. Data in each entry have been provided by the accrediting bodies. Admissions officers, counselors, and employers rely upon the accurate and up-to-date information in this…
Accredited Institutions of Postsecondary Education: Programs/Candidates.
ERIC Educational Resources Information Center
Harris, Sherry S., Ed.
The annual directory lists institutions and programs evaluated by recognized accreditors and determined by their peers to meet acceptable levels of educational quality. Those institutions designated as candidates for accreditation have achieved initial recognition from their respective accrediting associations or commissions, and are progressing…
15 CFR 285.3 - Referencing NVLAP accreditation.
Code of Federal Regulations, 2014 CFR
2014-01-01
... INSTITUTE OF STANDARDS AND TECHNOLOGY, DEPARTMENT OF COMMERCE ACCREDITATION AND ASSESSMENT PROGRAMS NATIONAL... Standards and Technology and the federal government, who retain exclusive rights to control the use thereof... of announcing their accredited status, and for use on reports that describe only testing and...
15 CFR 285.3 - Referencing NVLAP accreditation.
Code of Federal Regulations, 2010 CFR
2010-01-01
... INSTITUTE OF STANDARDS AND TECHNOLOGY, DEPARTMENT OF COMMERCE ACCREDITATION AND ASSESSMENT PROGRAMS NATIONAL... Standards and Technology and the federal government, who retain exclusive rights to control the use thereof... of announcing their accredited status, and for use on reports that describe only testing and...
15 CFR 285.3 - Referencing NVLAP accreditation.
Code of Federal Regulations, 2012 CFR
2012-01-01
... INSTITUTE OF STANDARDS AND TECHNOLOGY, DEPARTMENT OF COMMERCE ACCREDITATION AND ASSESSMENT PROGRAMS NATIONAL... Standards and Technology and the federal government, who retain exclusive rights to control the use thereof... of announcing their accredited status, and for use on reports that describe only testing and...
15 CFR 285.3 - Referencing NVLAP accreditation.
Code of Federal Regulations, 2013 CFR
2013-01-01
... INSTITUTE OF STANDARDS AND TECHNOLOGY, DEPARTMENT OF COMMERCE ACCREDITATION AND ASSESSMENT PROGRAMS NATIONAL... Standards and Technology and the federal government, who retain exclusive rights to control the use thereof... of announcing their accredited status, and for use on reports that describe only testing and...
15 CFR 285.3 - Referencing NVLAP accreditation.
Code of Federal Regulations, 2011 CFR
2011-01-01
... INSTITUTE OF STANDARDS AND TECHNOLOGY, DEPARTMENT OF COMMERCE ACCREDITATION AND ASSESSMENT PROGRAMS NATIONAL... Standards and Technology and the federal government, who retain exclusive rights to control the use thereof... of announcing their accredited status, and for use on reports that describe only testing and...
Social Partnership in Accrediting Lithuanian VET Qualifications
ERIC Educational Resources Information Center
Tutlys, Vidmantas; Kaminskiene, Lina
2008-01-01
This article examines social partnership in accrediting qualifications in Lithuania. It defines the factors influencing social partnership and surveys future development perspectives, referring to the creation and implementation of the national qualifications system in Lithuania. Social partnership in qualifications accreditation is regarded as a…
Regulatory issues in accreditation of toxicology laboratories.
Bissell, Michael G
2012-09-01
Clinical toxicology laboratories and forensic toxicology laboratories operate in a highly regulated environment. This article outlines major US legal/regulatory issues and requirements relevant to accreditation of toxicology laboratories (state and local regulations are not covered in any depth). The most fundamental regulatory distinction involves the purposes for which the laboratory operates: clinical versus nonclinical. The applicable regulations and the requirements and options for operations depend most basically on this consideration, with clinical toxicology laboratories being directly subject to federal law including mandated options for accreditation and forensic toxicology laboratories being subject to degrees of voluntary or state government–required accreditation.
21 CFR 830.120 - Responsibilities of an FDA-accredited issuing agency.
Code of Federal Regulations, 2014 CFR
2014-04-01
... 21 Food and Drugs 8 2014-04-01 2014-04-01 false Responsibilities of an FDA-accredited issuing... HUMAN SERVICES (CONTINUED) MEDICAL DEVICES UNIQUE DEVICE IDENTIFICATION FDA Accreditation of an Issuing Agency § 830.120 Responsibilities of an FDA-accredited issuing agency. To maintain its accreditation, an...
DOE Office of Scientific and Technical Information (OSTI.GOV)
Alsanea, F; Kudchadker, R; Usama, M
Purpose: To evaluate the accuracy and usefulness of plastic scintillation detectors used for skin dosimetry of patients undergoing passive scatter proton therapy. Methods: Following an IRB approved protocol, six patients undergoing passively scattered proton beam therapy for prostate cancer were selected for in vivo skin dosimetry using the Exradin W1 plastic scintillator. The detector was calibrated on a Cobalt-60 unit, and phantom measurements in the proton beam with the W1 and a calibrated parallel plate ion chamber were used to account for the under-response due to high LET at energies used for treatment. Measurements made in a heated water tankmore » were used to account for temperature dependence. For in vivo measurements, the W1 is fixed to the patient’s skin with medical tape in the center of each of two laterally opposed treatment fields. Measurements will be performed once per week for each patient for the duration of treatment, for a total of thirty six measurements. The measured dose will be compared to the expected dose, extracted from the Eclipse treatment planning system. The average difference over all measurements and per-patient will be computed, as well as standard deviations. Results: The calibrated detector exhibited a 7% under-response in 225 and 250 MeV beams, and a 4% under-response when used at 37 °C (relative to the response at the calibration temperature of 20 °C). Patient measurements are ongoing. Conclusion: The Exradin W1 plastic scintillator detector is a strong candidate for in vivo skin dosimetry in passively scattered proton beams as PSDs are water equivalent and very small (2mm in diameter), permitting accurate measurements that do not perturb the delivered dose. This project was supported in part by award number CA182450 from the National Cancer Institute.« less
45 CFR 156.275 - Accreditation of QHP issuers.
Code of Federal Regulations, 2012 CFR
2012-10-01
... QHP issuers codified in § 156.230(a)(2) and (a)(3). (3) Methodological and scoring criteria for accreditation. Recognized accrediting entities must use transparent and rigorous methodological and scoring...
Calibration factors for the SNOOPY NP-100 neutron dosimeter
NASA Astrophysics Data System (ADS)
Moscu, D. F.; McNeill, F. E.; Chase, J.
2007-10-01
Within CANDU nuclear power facilities, only a small fraction of workers are exposed to neutron radiation. For these individuals, roughly 4.5% of the total radiation equivalent dose is the result of exposure to neutrons. When this figure is considered across all workers receiving external exposure of any kind, only 0.25% of the total radiation equivalent dose is the result of exposure to neutrons. At many facilities, the NP-100 neutron dosimeter, manufactured by Canberra Industries Incorporated, is employed in both direct and indirect dosimetry methods. Also known as "SNOOPY", these detectors undergo calibration, which results in a calibration factor relating the neutron count rate to the ambient dose equivalent rate, using a standard Am-Be neutron source. Using measurements presented in a technical note, readings from the dosimeter for six different neutron fields in six source-detector orientations were used, to determine a calibration factor for each of these sources. The calibration factor depends on the neutron energy spectrum and the radiation weighting factor to link neutron fluence to equivalent dose. Although the neutron energy spectra measured in the CANDU workplace are quite different than that of the Am-Be calibration source, the calibration factor remains constant - within acceptable limits - regardless of the neutron source used in the calibration; for the specified calibration orientation and current radiation weighting factors. However, changing the value of the radiation weighting factors would result in changes to the calibration factor. In the event of changes to the radiation weighting factors, it will be necessary to assess whether a change to the calibration process or resulting calibration factor is warranted.
10 CFR 430.25 - Laboratory Accreditation Program.
Code of Federal Regulations, 2011 CFR
2011-01-01
... Procedures § 430.25 Laboratory Accreditation Program. The testing for general service fluorescent lamps... Appendix R to this subpart. The testing for medium base compact fluorescent lamps shall be performed in accordance with Appendix W of this subpart. This testing shall be conducted by test laboratories accredited...
10 CFR 430.25 - Laboratory Accreditation Program.
Code of Federal Regulations, 2010 CFR
2010-01-01
... Procedures § 430.25 Laboratory Accreditation Program. The testing for general service fluorescent lamps... Appendix R to this subpart. The testing for medium base compact fluorescent lamps shall be performed in accordance with Appendix W of this subpart. This testing shall be conducted by test laboratories accredited...
15 CFR 285.10 - Renewal of accreditation.
Code of Federal Regulations, 2010 CFR
2010-01-01
... 15 Commerce and Foreign Trade 1 2010-01-01 2010-01-01 false Renewal of accreditation. 285.10 Section 285.10 Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY, DEPARTMENT OF COMMERCE ACCREDITATION AND ASSESSMENT PROGRAMS NATIONAL...
15 CFR 285.10 - Renewal of accreditation.
Code of Federal Regulations, 2011 CFR
2011-01-01
... 15 Commerce and Foreign Trade 1 2011-01-01 2011-01-01 false Renewal of accreditation. 285.10 Section 285.10 Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY, DEPARTMENT OF COMMERCE ACCREDITATION AND ASSESSMENT PROGRAMS NATIONAL...
15 CFR 285.10 - Renewal of accreditation.
Code of Federal Regulations, 2012 CFR
2012-01-01
... 15 Commerce and Foreign Trade 1 2012-01-01 2012-01-01 false Renewal of accreditation. 285.10 Section 285.10 Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY, DEPARTMENT OF COMMERCE ACCREDITATION AND ASSESSMENT PROGRAMS NATIONAL...
15 CFR 285.10 - Renewal of accreditation.
Code of Federal Regulations, 2014 CFR
2014-01-01
... 15 Commerce and Foreign Trade 1 2014-01-01 2014-01-01 false Renewal of accreditation. 285.10 Section 285.10 Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY, DEPARTMENT OF COMMERCE ACCREDITATION AND ASSESSMENT PROGRAMS NATIONAL...
15 CFR 285.10 - Renewal of accreditation.
Code of Federal Regulations, 2013 CFR
2013-01-01
... 15 Commerce and Foreign Trade 1 2013-01-01 2013-01-01 false Renewal of accreditation. 285.10 Section 285.10 Commerce and Foreign Trade Regulations Relating to Commerce and Foreign Trade NATIONAL INSTITUTE OF STANDARDS AND TECHNOLOGY, DEPARTMENT OF COMMERCE ACCREDITATION AND ASSESSMENT PROGRAMS NATIONAL...
Accreditation at a crossroads: are we on the right track?
Touati, Nassera; Pomey, Marie-Pascale
2009-05-01
By comparing Canada, where accreditation is optional, to France, where it is required, this study evaluates the extent to which the accreditation process acts as a tool for bureaucratic coercion as opposed to a tool for learning. Our study consists of a qualitative meta-analysis of studies of French and Canadian accreditation experiences between 1996 and 2006. Using the conceptual framework of Adler and Borys [Adler P, Borys B. Two types of bureaucracy: enabling and coercitive. Administration Science Quarterly 1996;41:61-89], we assess the characteristics of accreditation in the French and the Canadian environments and distinguish between coercive and enabling modi operandi. Results show that accreditation has positive impacts in the two countries but is more coercion-oriented in France than in Canada. This is because in France: (1) the fact that accreditation is compulsory and certain standards are required by law limits participant's opportunities to influence the process; (2) standards are not adapted to various clinical programs and as a result, participants contest their legitimacy; (3) ambiguity about the use of accreditation visit results has sullied global transparency. Despite differences between the French and Canadian systems, however, both systems are converging towards a mixed model that includes elements of both philosophies, with the Canadian model becoming more coercive and the French model becoming more flexible and learning-oriented. Comparison of the two cases shows that current trends in the evolution of accreditation threaten the very purpose of the accreditation process.
Alecu, R; Loomis, T; Alecu, J; Ochran, T
1999-01-01
Semiconductor diodes offer many advantages for clinical dosimetry: high sensitivity, real-time readout, simple instrumentation, robustness and air pressure independence. The feasibility and usefulness of in vivo dosimetry with diodes has been shown by numerous publications, but very few, if any, refer to the utilization of diodes in electron beam dosimetry. The purpose of this paper is to present our methods for implementing an effective IVD program for external beam therapy with photons and electrons and to evaluate a new type of diodes. Methods of deciding on reasonable action levels along with calibration procedures, established according to the type of measurements intended to be performed and the action limits, are discussed. Correction factors to account for nonreference clinical conditions for new types of diodes (designed for photon and electron beams) are presented and compared with those required by older models commercially available. The possibilities and limitations of each type of diode are presented, emphasizing the importance of using the appropriate diode for each task and energy range.
45 CFR 156.275 - Accreditation of QHP issuers.
Code of Federal Regulations, 2013 CFR
2013-10-01
... issuers codified in § 156.230(a)(2) and (a)(3). (3) Methodological and scoring criteria for accreditation. Recognized accrediting entities must use transparent and rigorous methodological and scoring criteria. (4...
45 CFR 156.275 - Accreditation of QHP issuers.
Code of Federal Regulations, 2014 CFR
2014-10-01
... issuers codified in § 156.230(a)(2) and (a)(3). (3) Methodological and scoring criteria for accreditation. Recognized accrediting entities must use transparent and rigorous methodological and scoring criteria. (4...
Advantages and Disadvantages of Health Care Accreditation Mod-els.
Tabrizi, Jafar S; Gharibi, Farid; Wilson, Andrew J
2011-01-01
This systematic review seeks to define the general advantages and disadvan-tages of accreditation programs to assist in choosing the most appropriate approach. Systematic search of SID, Ovid Medline & PubMed databases was conducted by the keywords of accreditation, hospital, medical practice, clinic, accreditation models, health care and Persian meanings. From 2379 initial articles, 83 articles met the full inclusion criteria. From initial analysis, 23 attributes were identified which appeared to define advantages and disadvantages of different accreditation approaches and the available systems were compared on these. Six systems were identified in the international literature including the JCAHO from USA, the Canadian program of CCHSA, and the accreditation programs of UK, Australia, New Zealand and France. The main distinguishing attributes among them were: quality improve-ment, patient and staff safety, improving health services integration, public's confi-dence, effectiveness and efficiency of health services, innovation, influence global standards, information management, breadth of activity, history, effective relationship with stakeholders, agreement with AGIL attributes and independence from government. Based on 23 attributes of comprehensive accreditation systems we have defined from a systematic review, the JCAHO accreditation program of USA and then CCHSA of Can-ada offered the most comprehensive systems with the least disadvantages. Other programs such as the ACHS of Australia, ANAES of France, QHNZ of New Zealand and UK accredita-tion programs were fairly comparable according to these criteria. However the decision for any country or health system should be based on an assessment weighing up their specific objec-tives and needs.
ERIC Educational Resources Information Center
Murphy, William P.
2016-01-01
Quality assurance of academic programs that lead to licensure or certification in a profession traditionally has been through the industry-recognized accreditation body. There have been a limited number of studies on whether accreditation is associated with better program quality and outcomes; the purpose of this study was to add to that body of…
Accredited Internship and Postdoctoral Programs for Training in Psychology: 2006
ERIC Educational Resources Information Center
American Psychologist, 2006
2006-01-01
Presents the official listing of accredited internship and postdoctoral residency programs. It reflects all committee decisions through July 16, 2006. The Committee on Accreditation has accredited the doctoral internship and postdoctoral residency training programs in psychology offered by the agencies listed.
The pathology milestones and the next accreditation system.
Naritoku, Wesley Y; Alexander, C Bruce; Bennett, Betsy D; Black-Schaffer, W Stephen; Brissette, Mark D; Grimes, Margaret M; Hoffman, Robert D; Hunt, Jennifer L; Iezzoni, Julia C; Johnson, Rebecca; Kozel, Jessica; Mendoza, Ricardo M; Post, Miriam D; Powell, Suzanne Z; Procop, Gary W; Steinberg, Jacob J; Thorsen, Linda M; Nestler, Steven P
2014-03-01
In the late 1990s, the Accreditation Council for Graduate Medical Education developed the Outcomes Project and the 6 general competencies with the intent to improve the outcome of graduate medical education in the United States. The competencies were used as the basis for developing learning goals and objectives and tools to evaluate residents' performance. By the mid-2000s the stakeholders in resident education and the general public felt that the Outcomes Project had fallen short of expectations. To develop a new evaluation method to track trainee progress throughout residency using benchmarks called milestones. A change in leadership at the Accreditation Council for Graduate Medical Education brought a new vision for the accreditation of training programs and a radically different approach to the evaluation of residents. The Pathology Milestones Working Group reviewed examples of developing milestones in other specialties, the literature, and the Accreditation Council for Graduate Medical Education program requirements for pathology to develop pathology milestones. The pathology milestones are a set of objective descriptors for measuring progress in the development of competency in patient care, procedural skill sets, medical knowledge, practice-based learning and improvement, interpersonal and communication skills, professionalism, and systems-based practice. The milestones provide a national standard for evaluation that will be used for the assessment of all residents in Accreditation Council for Graduate Medical Education-accredited pathology training programs.
[Staff accreditation in parenteral nutrition production in hospital pharmacy].
Vrignaud, S; Le Pêcheur, V; Jouan, G; Valy, S; Clerc, M-A
2016-09-01
This work aims to provide staff accreditation methodology to harmonize and secure practices for parenteral nutrition bags preparation. The methodology used in the present study is inspired from project management and quality approach. Existing training supports were used to produce accreditation procedure and evaluation supports. We first defined abilities levels, from level 1, corresponding to accredited learning agent to level 3, corresponding to expert accredited agent. Elements assessed for accreditation are: clothing assessment either by practices audit or by microbiologic test, test bags preparation and handling assessment, bag production to assess aseptic filling for both manual or automatized method, practices audit, number of days of production, and non-conformity following. At Angers Hospital, in 2014, production staff is composed of 12 agents. Staff accreditation reveals that 2 agents achieve level 3, 8 agents achieve level 2 and 2 agents are level 1. We noted that non-conformity decreased as accreditation took place from 81 in 2009 to 0 in 2014. To date, there is no incident due to parenteral bag produced by Angers hospital for neonatal resuscitation children. Such a consistent study is essential to insure a secured nutrition parenteral production. This also provides a satisfying quality care for patients. Copyright © 2016 Académie Nationale de Pharmacie. Published by Elsevier Masson SAS. All rights reserved.
Dosimetry investigation of MOSFET for clinical IMRT dose verification.
Deshpande, Sudesh; Kumar, Rajesh; Ghadi, Yogesh; Neharu, R M; Kannan, V
2013-06-01
In IMRT, patient-specific dose verification is followed regularly at each centre. Simple and efficient dosimetry techniques play a very important role in routine clinical dosimetry QA. The MOSFET dosimeter offers several advantages over the conventional dosimeters such as its small detector size, immediate readout, immediate reuse, multiple point dose measurements. To use the MOSFET as routine clinical dosimetry system for pre-treatment dose verification in IMRT, a comprehensive set of experiments has been conducted, to investigate its linearity, reproducibility, dose rate effect and angular dependence for 6 MV x-ray beam. The MOSFETs shows a linear response with linearity coefficient of 0.992 for a dose range of 35 cGy to 427 cGy. The reproducibility of the MOSFET was measured by irradiating the MOSFET for ten consecutive irradiations in the dose range of 35 cGy to 427 cGy. The measured reproducibility of MOSFET was found to be within 4% up to 70 cGy and within 1.4% above 70 cGy. The dose rate effect on the MOSFET was investigated in the dose rate range 100 MU/min to 600 MU/min. The response of the MOSFET varies from -1.7% to 2.1%. The angular responses of the MOSFETs were measured at 10 degrees intervals from 90 to 270 degrees in an anticlockwise direction and normalized at gantry angle zero and it was found to be in the range of 0.98 ± 0.014 to 1.01 ± 0.014. The MOSFETs were calibrated in a phantom which was later used for IMRT verification. The measured calibration coefficients were found to be 1 mV/cGy and 2.995 mV/cGy in standard and high sensitivity mode respectively. The MOSFETs were used for pre-treatment dose verification in IMRT. Nine dosimeters were used for each patient to measure the dose in different plane. The average variation between calculated and measured dose at any location was within 3%. Dose verification using MOSFET and IMRT phantom was found to quick and efficient and well suited for a busy radiotherapy
A National Perspective on Exploring Correlates of Accreditation in Children's Mental Health Care.
Lee, Madeline Y
2017-07-01
This study is the first to explore national accreditation rates and the relationship between accreditation status and organizational characteristics and quality indicators in children's mental health. Data from the Substance Abuse and Mental Health Services Administration's (SAMHSA's) National Survey of Mental Health Treatment Facilities (NSMHTF) were used from 8,247 facilities that serve children and/or adolescents. Nearly 60% (n=4,925) of the facilities were accredited by the Council on Accreditation (COA), the Commission on Accreditation of Rehabilitation Facilities (CARF), or The Joint Commission (TJC). Chi-square analyses were conducted to explore relationships. Compared to non-accredited facilities, more accredited facilities reported greater number of admissions, acceptance of government funding and client funds, and implementation of several quality indicators. Policies with incentives for accreditation could influence accreditation rates, and accreditation could influence quality indicators. These results set the foundation for future research about the drivers of the accreditation phenomenon and its impact on children's mental health outcomes.
A new paradigm in personal dosimetry using LiF:Mg,Cu,P.
Cassata, J R; Moscovitch, M; Rotunda, J E; Velbeck, K J
2002-01-01
The United States Navy has been monitoring personnel for occupational exposure to ionising radiation since 1947. Film was exclusively used until 1973 when thermoluminescence dosemeters were introduced and used to the present time. In 1994, a joint research project between the Naval Dosimetry Center, Georgetown University, and Saint Gobain Crystals and Detectors (formerly Bicron RMP formerly Harshaw TLD) began to develop a state of the art thermoluminescent dosimetry system. The study was conducted from a large-scale dosimetry processor point of view with emphasis on a systems approach. Significant improvements were achieved by replacing the LiF:Mg,Ti with LiF:Mg,Cu,P TL elements due to the significant sensitivity increase, linearity, and negligible hiding. Dosemeter filters were optimised for gamma and X ray energy discrimination using Monte Carlo modelling (MCNP) resulting in significant improvement in accuracy and precision. Further improvements were achieved through the use of neural-network based dose calculation algorithms. Both back propagation and functional link methods were implemented and the data compared with essentially the same results. Several operational aspects of the system are discussed, including (1) background subtraction using control dosemeters, (2) selection criteria for control dosemeters, (3) optimisation of the TLD readers, (4) calibration methodology, and (5) the optimisation of the heating profile.
SU-F-T-562: Validation of EPID-Based Dosimetry for FSRS Commissioning
DOE Office of Scientific and Technical Information (OSTI.GOV)
Song, Y; Saleh, Z; Obcemea, C
Purpose: The prevailing approach to frameless SRS (fSRS) small field dosimetry is Gafchromic film. Though providing continuous information, its intrinsic uncertainties in fabrication, response, scan, and calibration often make film dosimetry subject to different interpretations. In this study, we explored the feasibility of using EPID portal dosimetry as a viable alternative to film for small field dosimetry. Methods: Plans prescribed a dose of 21 Gy were created on a flat solid water phantom with Eclipse V11 and iPlan for small static square fields (1.0 to 3.0 cm). In addition, two clinical test plans were computed by employing iPlan on amore » CIRS Kesler head phantom for target dimensions of 1.2cm and 2.0cm. Corresponding portal dosimetry plans were computed using the Eclipse TPS and delivered on a Varian TrueBeam machine. EBT-XD film dosimetry was performed as a reference. The isocenter doses were measured using EPID, OSLD, stereotactic diode, and CC01 ion chamber. Results: EPID doses at the center of the square field were higher than Eclipse TPS predicted portal doses, with the mean difference being 2.42±0.65%. Doses measured by EBT-XD film, OSLD, stereotactic diode, and CC01 ion chamber revealed smaller differences (except OSLDs), with mean differences being 0.36±3.11%, 4.12±4.13%, 1.7±2.76%, 1.45±2.37% for Eclipse and −1.36±0.85%, 2.38±4.2%, −0.03±0.50%, −0.27±0.78% for iPlan. The profiles measured by EPID and EBT-XD film resembled TPS (Eclipse and iPlan) predicted ones within 3.0%. For the two clinical test plans, the EPID mean doses at the center of field were 2.66±0.68% and 2.33±0.32% higher than TPS predicted doses. Conclusion: We found that results obtained with EPID portal dosimetry were slightly higher (∼2%) than those obtained with EBT-XD film, diode, and CC01 ion chamber with the exception of OSLDs, but well within IROC tolerance (5.0%). Therefore, EPID has the potential to become a viable real-time alternative method to film
Accreditation Bends Before the Winds of Change.
ERIC Educational Resources Information Center
Zoffer, H. J.
1987-01-01
The accreditation process benefits institutions through self-knowledge, accountability, the establishment of a legal standard, and the competition it creates. However, accreditation needs to address (1) the value of student gains in knowledge and skills and (2) the measurement of quality rather than quantity. Efforts of the American Assembly of…
An Overview of U.S. Accreditation--Revised
ERIC Educational Resources Information Center
Eaton, Judith S.
2012-01-01
Accreditation in the United States is about quality assurance and quality improvement. It is a process to scrutinize higher education institutions and programs. Accreditation is private (nongovernmental) and nonprofit--an outgrowth of the higher education community and not of government. It is funded primarily by the institutions and programs that…
NASA Astrophysics Data System (ADS)
Szumska, Agnieszka; Budzanowski, M.; Kopeć, R.
2014-11-01
We report results of measurements of Hp(10) from whole body dosimeters (about 53 thousand readouts), of Hp(0.07) from finger ring dosimeters (23 thousand readouts) and of Hp(3) from eye lens dosimeters (100 readouts), issued in the years 2010-12 to over 150 medical departments in Poland which apply X-rays in radiology, interventional radiology (haemodynamic, angiology, cardiac surgery), urology, orthopaedics, electrophysiology or electro-cardiology. In all measurements thermoluminescence detectors (TLD) were used: the well-known standard MTS-N (LiF:Mg, Ti) for whole body and extremity dosimetry, and the high-sensitivity MCP-N (LiF:Mg, Cu, P) for eye lens dosimetry and environmental monitoring. We analysed the data base of the accredited Laboratory of Individual and Environmental Dosimetry (LADIS) at the Institute of Nuclear Physics PAN which offers its dosimetry service to these departments on a regular basis. We found that in the population of radiation workers that studied over the years 2010-2012 in 84%, 87%, and 34% of Hp(10), Hp(0.07) and Hp(3) measurements, respectively, the level of 0.1 mSv/quarter did not exceed, indicating lack of their occupational exposure. In the remaining 16%, 13% and 66% of individual cases, the 0.1 mSv/quarter exceeded, occasionally reaching several hundreds of mSv/quarter.
9 CFR 77.9 - Modified accredited advanced States or zones.
Code of Federal Regulations, 2012 CFR
2012-01-01
... TUBERCULOSIS Cattle and Bison § 77.9 Modified accredited advanced States or zones. (a) The following are... herd test requirements contained in the “Uniform Methods and Rules—Bovine Tuberculosis Eradication... reclassified as modified accredited. (d) If tuberculosis is diagnosed within a modified accredited advanced...
The Effects of AACSB Accreditation on Faculty Salaries and Productivity
ERIC Educational Resources Information Center
Hedrick, David W.; Henson, Steven E.; Krieg, John M.; Wassell, Charles S.
2010-01-01
The authors explored differences between salaries and productivity of business faculty in Association to Advance Collegiate Schools of Business (AACSB)-accredited business programs and those without AACSB accreditation. Empirical evidence is scarce regarding these differences, yet understanding the impact of AACSB accreditation on salaries and…
9 CFR 391.5 - Laboratory accreditation fees.
Code of Federal Regulations, 2012 CFR
2012-01-01
... 9 Animals and Animal Products 2 2012-01-01 2012-01-01 false Laboratory accreditation fees. 391.5 Section 391.5 Animals and Animal Products FOOD SAFETY AND INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE FOOD SAFETY AND INSPECTION SERVICE ADMINISTRATIVE PROVISIONS FEES AND CHARGES FOR INSPECTION SERVICES AND LABORATORY ACCREDITATION § 391.5...
9 CFR 391.5 - Laboratory accreditation fees.
Code of Federal Regulations, 2011 CFR
2011-01-01
... 9 Animals and Animal Products 2 2011-01-01 2011-01-01 false Laboratory accreditation fees. 391.5 Section 391.5 Animals and Animal Products FOOD SAFETY AND INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE FOOD SAFETY AND INSPECTION SERVICE ADMINISTRATIVE PROVISIONS FEES AND CHARGES FOR INSPECTION SERVICES AND LABORATORY ACCREDITATION § 391.5...
9 CFR 391.5 - Laboratory accreditation fees.
Code of Federal Regulations, 2014 CFR
2014-01-01
... 9 Animals and Animal Products 2 2014-01-01 2014-01-01 false Laboratory accreditation fees. 391.5 Section 391.5 Animals and Animal Products FOOD SAFETY AND INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE FOOD SAFETY AND INSPECTION SERVICE ADMINISTRATIVE PROVISIONS FEES AND CHARGES FOR INSPECTION SERVICES AND LABORATORY ACCREDITATION § 391.5...
9 CFR 391.5 - Laboratory accreditation fees.
Code of Federal Regulations, 2013 CFR
2013-01-01
... 9 Animals and Animal Products 2 2013-01-01 2013-01-01 false Laboratory accreditation fees. 391.5 Section 391.5 Animals and Animal Products FOOD SAFETY AND INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE FOOD SAFETY AND INSPECTION SERVICE ADMINISTRATIVE PROVISIONS FEES AND CHARGES FOR INSPECTION SERVICES AND LABORATORY ACCREDITATION § 391.5...
ERIC Educational Resources Information Center
Winterbottom, Christian; Piasta, Shayne B.
2015-01-01
Accreditation is a widely accepted indicator of quality in early education and includes many of the components cited in broad conceptualizations of quality. The purpose of this study was to examine whether kindergarten readiness rates differed between Florida child care facilities that were and were not accredited by any relevant national…
9 CFR 77.24 - Modified accredited advanced States or zones.
Code of Federal Regulations, 2010 CFR
2010-01-01
... TUBERCULOSIS Captive Cervids § 77.24 Modified accredited advanced States or zones. (a) The following are... contained in the “Uniform Methods and Rules—Bovine Tuberculosis Eradication” (January 22, 1999 edition... modified accredited. (d) If tuberculosis is diagnosed within a modified accredited advanced State or zone...
Accreditation of Health Educational Programs. Part II: Staff Working Papers.
ERIC Educational Resources Information Center
Study of Accreditation of Selected Health Educational Programs, Washington, DC.
This publication contains a second set of working papers concerned with procedures of the accrediting agencies in the health fields, the accountability and social responsibility of accreditation, and the relationship of accreditation to certification, licensure, and registration. Texts of these papers are included: (1) "Dilemmas of Accreditation…
9 CFR 77.24 - Modified accredited advanced States or zones.
Code of Federal Regulations, 2012 CFR
2012-01-01
... TUBERCULOSIS Captive Cervids § 77.24 Modified accredited advanced States or zones. (a) The following are... contained in the “Uniform Methods and Rules—Bovine Tuberculosis Eradication” (January 22, 1999 edition... modified accredited. (d) If tuberculosis is diagnosed within a modified accredited advanced State or zone...
9 CFR 77.24 - Modified accredited advanced States or zones.
Code of Federal Regulations, 2013 CFR
2013-01-01
... TUBERCULOSIS Captive Cervids § 77.24 Modified accredited advanced States or zones. (a) The following are... contained in the “Uniform Methods and Rules—Bovine Tuberculosis Eradication” (January 22, 1999 edition... modified accredited. (d) If tuberculosis is diagnosed within a modified accredited advanced State or zone...
9 CFR 77.9 - Modified accredited advanced States or zones.
Code of Federal Regulations, 2013 CFR
2013-01-01
... TUBERCULOSIS Cattle and Bison § 77.9 Modified accredited advanced States or zones. (a) The following are... apply the herd test requirements contained in the “Uniform Methods and Rules—Bovine Tuberculosis... being reclassified as modified accredited. (d) If tuberculosis is diagnosed within a modified accredited...
9 CFR 77.9 - Modified accredited advanced States or zones.
Code of Federal Regulations, 2014 CFR
2014-01-01
... TUBERCULOSIS Cattle and Bison § 77.9 Modified accredited advanced States or zones. (a) The following are... apply the herd test requirements contained in the “Uniform Methods and Rules—Bovine Tuberculosis... being reclassified as modified accredited. (d) If tuberculosis is diagnosed within a modified accredited...
9 CFR 77.24 - Modified accredited advanced States or zones.
Code of Federal Regulations, 2014 CFR
2014-01-01
... TUBERCULOSIS Captive Cervids § 77.24 Modified accredited advanced States or zones. (a) The following are... contained in the “Uniform Methods and Rules—Bovine Tuberculosis Eradication” (January 22, 1999 edition... modified accredited. (d) If tuberculosis is diagnosed within a modified accredited advanced State or zone...
9 CFR 77.24 - Modified accredited advanced States or zones.
Code of Federal Regulations, 2011 CFR
2011-01-01
... TUBERCULOSIS Captive Cervids § 77.24 Modified accredited advanced States or zones. (a) The following are... contained in the “Uniform Methods and Rules—Bovine Tuberculosis Eradication” (January 22, 1999 edition... modified accredited. (d) If tuberculosis is diagnosed within a modified accredited advanced State or zone...
9 CFR 77.9 - Modified accredited advanced States or zones.
Code of Federal Regulations, 2011 CFR
2011-01-01
... TUBERCULOSIS Cattle and Bison § 77.9 Modified accredited advanced States or zones. (a) The following are... requirements contained in the “Uniform Methods and Rules—Bovine Tuberculosis Eradication” (January 22, 1999... modified accredited. (d) If tuberculosis is diagnosed within a modified accredited advanced State or zone...
Accreditation in the Professions: Implications for Educational Leadership Preparation Programs
ERIC Educational Resources Information Center
Pavlakis, Alexandra; Kelley, Carolyn
2016-01-01
Program accreditation is a process based on a set of professional expectations and standards meant to signal competency and credibility. Although accreditation has played an important role in shaping educational leadership preparation programs, recent revisions to accreditation processes and standards have highlighted attention to the purposes,…
Berg, A; Pernkopf, M; Waldhäusl, C; Schmidt, W; Moser, E
2004-09-07
Precise methods of modem radiation therapy such as intensity modulated radiotherapy (IMRT), brachytherapy (BT) and high LET irradiation allow for high dose localization in volumes of a few mm3. However, most dosimetry methods-ionization chambers, TLD arrangements or silicon detectors, for example-are not capable of detecting sub-mm dose variations or do not allow for simple dose imaging. Magnetic resonance based polymer dosimetry (MRPD) appears to be well suited to three-dimensional high resolution relative dosimetry but the spatial resolution based on a systematic modulation transfer function (MTF) approach has not yet been investigated. We offer a theoretical construct for addressing the spatial resolution in different dose imaging systems, i.e. the dose modulation transfer function (DMTF) approach, an experimental realization of this concept with a phantom and quantitative comparisons between two dosimetric systems: polymer gel and film dosimetry. Polymer gel samples were irradiated by Co-60 photons through an absorber grid which is characterized by periodic structures of different spatial period (a), the smallest one at width of a/2 = 280 microm. The modulation in dose under the grid is visualized via calibrated, high resolution, parameter-selective (T2) and dose images based on multi-echo MR imaging. The DMTF is obtained from the modulation depth of the spin-spin relaxation time (T2) after calibration. Voxel sizes below 0.04 mm3 could be achieved, which are significantly smaller than those reported in MR based dose imaging on polymer gels elsewhere, using a powerful gradient system and a highly sensitive small birdcage resonator on a whole-body 3T MR scanner. Dose modulations at 22% of maximum dose amplitude could be observed at about 2 line pairs per mm. The polymer DMTF results are compared to those of a typical clinical film-scanner system. This study demonstrates that MR based gel dosimetry at 200 microm pixel resolution might even be superior, with
Moran, Paul R.
1976-01-01
The present invention provides a method for tritium dosimetry. A dosimeter comprising a thin film of a material having relatively sensitive RITAC-RITAP dosimetry properties is exposed to radiation from tritium, and after the dosimeter has been removed from the source of the radiation, the low energy electron dose deposited in the thin film is determined by radiation-induced, thermally-activated polarization dosimetry techniques.
Guide for the Evaluation and Accreditation of Institutions in Oklahoma Higher Education.
ERIC Educational Resources Information Center
Oklahoma State Regents for Higher Education, Oklahoma City.
Policies and procedures for accreditation, evaluation, and establishment of new institutions are presented. Part 1 outlines the policies and procedures for state accreditation as required by state law. These cover accreditation standards, expenses, consultants, institution's request for accreditation, institutional self-study, statistical…
SU-E-T-749: Thorough Calibration of MOSFET Dosimeters
DOE Office of Scientific and Technical Information (OSTI.GOV)
Plenkovich, D; Thomas, J
Purpose: To improve the accuracy of the MOSFET calibration procedure by performing the measurement several times and calculating the average value of the calibration factor for various photon and electron energies. Methods: The output of three photon and six electron beams of Varian Trilogy linear accelerator SN 5878 was calibrated. Five reinforced standard sensitivity MOSFET dosimeters were placed in the calibration jig and connected to the Reader Module. As the backscatter material was used 7 cm of Virtual Water. The MOSFET dosimeters were covered with 1.5 cm thick bolus for the regular and SRS 6 MV beams, 3 cm bolusmore » for 15 MV beam, 1.5 cm bolus for 6 MeV electron beam, and 2 cm bolus for the electron energies of 9, 12, 15, 18, and 22 MeV. The dosimeters were exposed to 100 MU, and the calibration factor was determined using the mobileMOSFET software. To improve the accuracy of calibration, this procedure was repeated ten times and the calibration factors were averaged. Results: As the number of calibrations was increasing the variability of calibration factors of different dosimeters was decreasing. After ten calibrations, the calibration factors for all five dosimeters were within 1% of one another for all energies, except 6 MV SRS photons and 6 MeV electrons, for which the variability was 2%. Conclusions: The described process results in calibration factors which are almost independent of modality or energy. Once calibrated, the dosimeters may be used for in-vivo dosimetry or for daily verification of the beam output. Measurement of the radiation dose under bolus and scatter to the eye are examples of frequent use of calibrated MOSFET dosimeters. The calibration factor determined for full build-up is used under these circumstances. To the best of our knowledge, such thorough procedure for calibrating MOSFET dosimeters has not been reported previously. Best Medical Canada provided MOSFET dosimeters for this project.« less
9 CFR 77.9 - Modified accredited advanced States or zones.
Code of Federal Regulations, 2010 CFR
2010-01-01
... TUBERCULOSIS Cattle and Bison § 77.9 Modified accredited advanced States or zones. (a) The following are... “Uniform Methods and Rules—Bovine Tuberculosis Eradication” (January 22, 1999), which is incorporated by... accredited advanced States or zones and its being reclassified as modified accredited. (d) If tuberculosis is...
A study of incentives to support and promote public health accreditation.
Thielen, Lee; Leff, Marilyn; Corso, Liza; Monteiro, Erinn; Fisher, Jessica Solomon; Pearsol, Jim
2014-01-01
Accreditation of public health agencies through the Public Health Accreditation Board is voluntary. Incentives that encourage agencies to apply for accreditation have been suggested as important factors in facilitating participation by state and local agencies. The project describes both current and potential incentives that are available at the federal, state, and local levels. Thirty-nine key informants from local, state, tribal, federal, and academic settings were interviewed from March through May 2012. Through open-ended interviews, respondents were asked about incentives that were currently in use in their settings and incentives they thought would help encourage participation in Public Health Accreditation Board accreditation. Incentives currently in use by public health agencies based on interviews include (1) financial support, (2) legal mandates, (3) technical assistance, (4) peer support workgroups, and (5) state agencies serving as role models by seeking accreditation themselves. Key informants noted that state agencies are playing valuable and diverse roles in providing incentives for accreditation within their own states. Key informants also identified the Centers for Disease Control and Prevention and other players, such as private foundations, public health institutes, national and state associations, and academia as providing both technical and financial assistance to support accreditation efforts. State, tribal, local, and federal agencies, as well as related organizations can play an important role by providing incentives to move agencies toward accreditation.
Family medicine's search for manpower: the American Osteopathic Association accreditation option.
Cummings, Mark; Kunkle, Judith L; Doane, Cheryl
2006-03-01
In recent years, family medicine has encountered problems recruiting and filling its Accreditation Council for Graduate Medical Education (ACGME)-accredited residencies. In addressing these reverses, one increasingly popular strategy has been to acquire American Osteopathic Association (AOA) accreditation as a way to tap into the growing number of osteopathic graduates. This stratagem is founded on assumptions that parallel-accredited postdoctoral programs are attractive to doctor of osteopathy (DO) graduates, that collaboration with sponsoring colleges of osteopathic medicine (COMs) provides direct access to osteopathic students, and that DOs can play an important role in replacing the increasing scarcity of United States medical graduates who are selecting specialty residencies. Within the past 5 years, nearly 10% of all ACGME family medicine residency programs have voluntarily obtained a second level of accreditation to also qualify as AOA-accredited family medicine residency programs. This strategy has produced mixed outcomes, as noted from the results of the osteopathic matching program. The flood of osteopathic graduates into these parallel-accredited programs has not occurred. In addition, recent AOA policy changes now require ACGME-accredited programs to make a deeper educational commitment to osteopathic postdoctoral education. The most successful ACGME/AOA-accredited programs have been those that are closely affiliated with and in near proximity of a COM and also train osteopathic students in required clerkship rotations.
Current status of accreditation for drug testing in hair.
Cooper, Gail; Moeller, Manfred; Kronstrand, Robert
2008-03-21
At the annual meeting of the Society of Hair Testing in Vadstena, Sweden in 2006, a committee was appointed to address the issue of guidelines for hair testing and to assess the current status of accreditation amongst laboratories offering drug testing in hair. A short questionnaire was circulated amongst the membership and interested parties. Fifty-two responses were received from hair testing laboratories providing details on the amount and type of hair tests they offered and the status of accreditation within their facilities. Although the vast majority of laboratories follow current guidelines (83%), only nine laboratories were accredited to ISO/IEC 17025 for hair testing. A significant number of laboratories reporting that they were in the process of developing quality systems with a view to accrediting their methods within 2-3 years. This study provides an insight into the status of accreditation in hair testing laboratories and supports the need for guidelines to encourage best practice.
Sense and nonsense in the process of accreditation of a pathology laboratory.
Long-Mira, Elodie; Washetine, Kevin; Hofman, Paul
2016-01-01
The aim of accreditation of a pathology laboratory is to control and optimize, in a permanent manner, good professional practice in clinical and molecular pathology, as defined by internationally established standards. Accreditation of a pathology laboratory is a key element in fine in increasing recognition of the quality of the analyses performed by a laboratory and in improving the care it provides to patients. One of the accreditation standards applied to clinical chemistry and pathology laboratories in the European Union is the ISO 15189 norm. Continued functioning of a pathology laboratory might in time be determined by whether or not it has succeeded the accreditation process. Necessary requirements for accreditation, according to the ISO 15189 norm, include an operational quality management system and continuous control of the methods used for diagnostic purposes. Given these goals, one would expect that all pathologists would agree on the positive effects of accreditation. Yet, some of the requirements stipulated in the accreditation standards, coming from the bodies that accredit pathology laboratories, and certain normative issues are perceived as arduous and sometimes not adapted to or even useless in daily pathology practice. The aim of this review is to elaborate why it is necessary to obtain accreditation but also why certain requirements for accreditation might be experienced as inappropriate.
9 CFR 161.7 - Activities performed by non-accredited veterinarians.
Code of Federal Regulations, 2010 CFR
2010-01-01
... 9 Animals and Animal Products 1 2010-01-01 2010-01-01 false Activities performed by non-accredited veterinarians. 161.7 Section 161.7 Animals and Animal Products ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE ACCREDITATION OF VETERINARIANS AND SUSPENSION OR REVOCATION OF SUCH ACCREDITATION REQUIREMENTS AND STANDARDS FOR...
42 CFR 8.6 - Withdrawal of approval of accreditation bodies.
Code of Federal Regulations, 2010 CFR
2010-10-01
... 42 Public Health 1 2010-10-01 2010-10-01 false Withdrawal of approval of accreditation bodies. 8.6 Section 8.6 Public Health PUBLIC HEALTH SERVICE, DEPARTMENT OF HEALTH AND HUMAN SERVICES GENERAL... accreditation bodies. If SAMHSA determines that an accreditation body is not in substantial compliance with this...
Community mental health accreditation: a pilot study.
Dorgan, R E; Gerhard, R J; Kennard, E D
1977-01-01
The Balanced Services System is the conceptual framework for the newly initiated community mental health accreditation program sponsored by the Joint Commission on Accreditation of Hospitals (JCAH). The program design and performance of CMH systems are reviewed and judged according to a series of evaluation criteria that prescribe the desired operating state for each functional area in the center.
ERIC Educational Resources Information Center
Moreland, Ernest F.; Linthicum, Dorothy S.
The Baltimore College of Dental Surgery (University of Maryland) measured direct and indirect costs of the school's 1981 accreditation visit. The four objectives of the cost study were these: (1) to determine the direct (wages and operating expenditures) and indirect (effect on school goals and morale) cost of accreditation to the Dental School;…
Hsu, Shu-Hui; Kulasekere, Ravi; Roberson, Peter L
2010-08-05
Film calibration is time-consuming work when dose accuracy is essential while working in a range of photon scatter environments. This study uses the single-target single-hit model of film response to fit the calibration curves as a function of calibration method, processor condition, field size and depth. Kodak XV film was irradiated perpendicular to the beam axis in a solid water phantom. Standard calibration films (one dose point per film) were irradiated at 90 cm source-to-surface distance (SSD) for various doses (16-128 cGy), depths (0.2, 0.5, 1.5, 5, 10 cm) and field sizes (5 × 5, 10 × 10 and 20 × 20 cm²). The 8-field calibration method (eight dose points per film) was used as a reference for each experiment, taken at 95 cm SSD and 5 cm depth. The delivered doses were measured using an Attix parallel plate chamber for improved accuracy of dose estimation in the buildup region. Three fitting methods with one to three dose points per calibration curve were investigated for the field sizes of 5 × 5, 10 × 10 and 20 × 20 cm². The inter-day variation of model parameters (background, saturation and slope) were 1.8%, 5.7%, and 7.7% (1 σ) using the 8-field method. The saturation parameter ratio of standard to 8-field curves was 1.083 ± 0.005. The slope parameter ratio of standard to 8-field curves ranged from 0.99 to 1.05, depending on field size and depth. The slope parameter ratio decreases with increasing depth below 0.5 cm for the three field sizes. It increases with increasing depths above 0.5 cm. A calibration curve with one to three dose points fitted with the model is possible with 2% accuracy in film dosimetry for various irradiation conditions. The proposed fitting methods may reduce workload while providing energy dependence correction in radiographic film dosimetry. This study is limited to radiographic XV film with a Lumisys scanner.
Inmetro acts in the accreditation of Conformity Assessment Bodies - CAB. Acreditação de Laboratórios Acreditação de Organismos de Certificação Acreditação de Organismos de Inspeção See the lectures
Public Health Agency Accreditation Among Rural Local Health Departments: Influencers and Barriers.
Beatty, Kate E; Erwin, Paul Campbell; Brownson, Ross C; Meit, Michael; Fey, James
Health department accreditation is a crucial strategy for strengthening public health infrastructure. The purpose of this study was to investigate local health department (LHD) characteristics that are associated with accreditation-seeking behavior. This study sought to ascertain the effects of rurality on the likelihood of seeking accreditation through the Public Health Accreditation Board (PHAB). Cross-sectional study using secondary data from the 2013 National Association of County & City Health Officials (NACCHO) National Profile of Local Health Departments Study (Profile Study). United States. LHDs (n = 490) that responded to the 2013 NACCHO Profile Survey. LHDs decision to seek PHAB accreditation. Significantly more accreditation-seeking LHDs were located in urban areas (87.0%) than in micropolition (8.9%) or rural areas (4.1%) (P < .001). LHDs residing in urban communities were 16.6 times (95% confidence interval [CI], 5.3-52.3) and micropolitan LHDs were 3.4 times (95% CI, 1.1-11.3) more likely to seek PHAB accreditation than rural LHDs (RLHDs). LHDs that had completed an agency-wide strategic plan were 8.5 times (95% CI, 4.0-17.9), LHDs with a local board of health were 3.3 times (95% CI, 1.5-7.0), and LHDs governed by their state health department were 12.9 times (95% CI, 3.3-50.0) more likely to seek accreditation. The most commonly cited barrier was time and effort required for accreditation application exceeded benefits (73.5%). The strongest predictor for seeking PHAB accreditation was serving an urban jurisdiction. Micropolitan LHDs were more likely to seek accreditation than smaller RLHDs, which are typically understaffed and underfunded. Major barriers identified by the RLHDs included fees being too high and the time and effort needed for accreditation exceeded their perceived benefits. RLHDs will need additional financial and technical support to achieve accreditation. Even with additional funds, clear messaging of the benefits of accreditation
DOE Office of Scientific and Technical Information (OSTI.GOV)
Mehdizadeh, S; Sina, S; Karimipourfard, M
Purpose: The purpose of this study is the design and fabrication of a multipurpose anthropomorphic neck and thyroid phantom for use in medical applications (i.e. quality control of images in nuclear medicine, and dosimetry). Methods: The designed neck phantom is composed of seven elliptic cylindrical slices with semi-major axis of 14 and semi-minor axis of 12.5 cm, each having the thickness of 2cm. Thyroid gland, bony part of the neck, and the wind pipe were also built inside the neck phantom. Results: The phantom contains some removable plugs,inside and at its surface to accommodate the TLD chips with different shapesmore » and dimensions, (i.e. rod, cylindrical and cubical TLD chips)for the purpose of medical dosimetry (i.e. in radiology, radiotherapy, and nuclear medicine). For the purpose of quality control of images in nuclear medicine, the removable thyroid gland was built to accommodate the radioactive iodine. The female and male thyroid glands were built in two sizes separately. Conclusion: The designed phantom is a multi-functional phantom which is applicable for dosimetry in diagnostic radiology, radiotherapy, and quality control of images in nuclear medicine.« less
SU-E-T-87: A TG-100 Approach for Quality Improvement of Associated Dosimetry Equipment
DOE Office of Scientific and Technical Information (OSTI.GOV)
Manger, R; Pawlicki, T; Kim, G
2015-06-15
Purpose: Dosimetry protocols devote so much time to the discussion of ionization chamber choice, use and performance that is easy to forget about the importance of the associated dosimetry equipment (ADE) in radiation dosimetry - barometer, thermometer, electrometer, phantoms, triaxial cables, etc. Improper use and inaccuracy of these devices may significantly affect the accuracy of radiation dosimetry. The purpose of this study is to evaluate the risk factors in the monthly output dosimetry procedure and recommend corrective actions using a TG-100 approach. Methods: A failure mode and effects analysis (FMEA) of the monthly linac output check procedure was performed tomore » determine which steps and failure modes carried the greatest risk. In addition, a fault tree analysis (FTA) was performed to expand the initial list of failure modes making sure that none were overlooked. After determining the failure modes with the highest risk priority numbers (RPNs), 11 physicists were asked to score corrective actions based on their ease of implementation and potential impact. The results were aggregated into an impact map to determine the implementable corrective actions. Results: Three of the top five failure modes were related to the thermometer and barometer. The two highest RPN-ranked failure modes were related to barometric pressure inaccuracy due to their high lack-of-detectability scores. Six corrective actions were proposed to address barometric pressure inaccuracy, and the survey results found the following two corrective actions to be implementable: 1) send the barometer for recalibration at a calibration laboratory and 2) check the barometer accuracy against the local airport and correct for elevation. Conclusion: An FMEA on monthly output measurements displayed the importance of ADE for accurate radiation dosimetry. When brainstorming for corrective actions, an impact map is helpful for visualizing the overall impact versus the ease of implementation.« less
Topical Review: Polymer gel dosimetry
Baldock, C; De Deene, Y; Doran, S; Ibbott, G; Jirasek, A; Lepage, M; McAuley, K B; Oldham, M; Schreiner, L J
2010-01-01
Polymer gel dosimeters are fabricated from radiation sensitive chemicals which, upon irradiation, polymerize as a function of the absorbed radiation dose. These gel dosimeters, with the capacity to uniquely record the radiation dose distribution in three-dimensions (3D), have specific advantages when compared to one-dimensional dosimeters, such as ion chambers, and two-dimensional dosimeters, such as film. These advantages are particularly significant in dosimetry situations where steep dose gradients exist such as in intensity-modulated radiation therapy (IMRT) and stereotactic radiosurgery. Polymer gel dosimeters also have specific advantages for brachytherapy dosimetry. Potential dosimetry applications include those for low-energy x-rays, high-linear energy transfer (LET) and proton therapy, radionuclide and boron capture neutron therapy dosimetries. These 3D dosimeters are radiologically soft-tissue equivalent with properties that may be modified depending on the application. The 3D radiation dose distribution in polymer gel dosimeters may be imaged using magnetic resonance imaging (MRI), optical-computerized tomography (optical-CT), x-ray CT or ultrasound. The fundamental science underpinning polymer gel dosimetry is reviewed along with the various evaluation techniques. Clinical dosimetry applications of polymer gel dosimetry are also presented. PMID:20150687
Regional Accreditation Standards and Contingent and Part-Time Faculty
ERIC Educational Resources Information Center
Pham, Nhung; Osland Paton, Valerie
2017-01-01
Accreditation demonstrates an institution's commitment to quality academic experiences for their students and consistent institutional development. This chapter discusses the role of contingent faculty in the accreditation process.
SU-D-213-06: Dosimetry of Modulated Electron Radiation Therapy Using Fricke Gel Dosimeter
DOE Office of Scientific and Technical Information (OSTI.GOV)
Gawad, M Abdel; Elgohary, M; Hassaan, M
Purpose: Modulated electron radiation therapy (MERT) has been proposed as an effective modality for treatment of superficial targets. MERT utilizes multiple beams of different energies which are intensity modulated to deliver optimized dose distribution. Energy independent dosimeters are thus needed for quantitative evaluations of MERT dose distributions and measurements of absolute doses delivered to patients. Thus in the current work we study the feasibility of Fricke gel dosimeters in MERT dosimetry. Methods: Batches of radiation sensitive Fricke gel is fabricated and poured into polymethyl methacrylate cuvettes. The samples were irradiated in solid water phantom and a thick layer of bolusmore » was used as a buildup. A spectrophotometer system was used for measuring the color changes (the absorbance) before and after irradiation and then we calculate net absorbance. We constructed calibration curves to relate the measured absorbance in terms of absorbed dose for all available electron energies. Dosimetric measurements were performed for mixed electron beam delivery and we also performed measurement for segmented field delivery with the dosimeter placed at the junction of two adjacent electron beams of different energies. Dose measured by our gel dosimetry is compared to that calculation from our precise treatment planning system. We also initiated a Monte Carlo study to evaluate the water equivalence of our dosimeters. MCBEAM and MCSIM codes were used for treatment head simulation and phantom dose calculation. PDDs and profiles were calculated for electron beams incident on a phantom designed with 1cm slab of Fricke gel. Results: The calibration curves showed no observed energy dependence with all studied electron beam energies. Good agreement was obtained between dose calculated and that obtained by gel dosimetry. Monte Carlo results illustrated the tissue equivalency of our Gel dosimeters. Conclusion: Fricke Gel dosimeters represent a good option for the
Introduction of a deformable x-ray CT polymer gel dosimetry system
NASA Astrophysics Data System (ADS)
Maynard, E.; Heath, E.; Hilts, M.; Jirasek, A.
2018-04-01
This study introduces the first 3D deformable dosimetry system based on x-ray computed tomography (CT) polymer gel dosimetry and establishes the setup reproducibility, deformation characteristics and dose response of the system. A N-isopropylacrylamide (NIPAM)-based gel formulation optimized for x-ray CT gel dosimetry was used, with a latex balloon serving as the deformable container and low-density polyethylene and polyvinyl alcohol providing additional oxygen barrier. Deformable gels were irradiated with a 6 MV calibration pattern to determine dosimetric response and a dosimetrically uniform plan to determine the spatial uniformity of the response. Wax beads were added to each gel as fiducial markers to track the deformation and setup of the gel dosimeters. From positions of the beads on CT images the setup reproducibility and the limits and reproducibility of gel deformation were determined. Comparison of gel measurements with Monte Carlo dose calculations found excellent dosimetric accuracy, comparable to that of an established non-deformable dosimetry system, with a mean dose discrepancy of 1.5% in the low-dose gradient region and a gamma pass rate of 97.9% using a 3%/3 mm criterion. The deformable dosimeter also showed good overall spatial dose uniformity throughout the dosimeter with some discrepancies within 20 mm of the edge of the container. Tracking of the beads within the dosimeter found that sub-millimetre setup accuracy is achievable with this system. The dosimeter was able to deform and relax when externally compressed by up to 30 mm without sustaining any permanent damage. Internal deformations in 3D produced average marker movements of up to 12 mm along the direction of compression. These deformations were also shown to be reproducible over 100 consecutive deformations. This work has established several important characteristics of a new deformable dosimetry system which shows promise for future clinical applications, including the
Reactor Dosimetry State of the Art 2008
NASA Astrophysics Data System (ADS)
Voorbraak, Wim; Debarberis, Luigi; D'Hondt, Pierre; Wagemans, Jan
2009-08-01
from the first-generation nuclear-powered submarines by gamma scanning / A. F. Usatyi. L. A. Serdyukova and B. S. Stepennov -- Oral session 3: Power plant surveillance. Upgraded neutron dosimetry procedure for VVER-440 surveillance specimens / V. Kochkin ... [et al.]. Neutron dosimetry on the full-core first generation VVER-440 aimed to reactor support structure load evaluation / P. Borodkin ... [et al.]. Ex-vessel neutron dosimetry programs for PWRs in Korea / C. S. Yoo. B. C. Kim and C. C. Kim. Comparison of irradiation conditions of VVER-1000 reactor pressure vessel and surveillance specimens for various core loadings / V. N. Bukanov ... [et al.]. Re-evaluation of dosimetry in the new surveillance program for the Loviisa 1 VVER-440 reactor / T. Serén -- Oral session 4: Benchmarks, intercomparisons and adjustment methods. Determination of the neutron parameter's uncertainties using the stochastic methods of uncertainty propagation and analysis / G. Grégoire ... [et al.].Covariance matrices for calculated neutron spectra and measured dosimeter responses / J. G. Williams ... [et al.]. The role of dosimetry at the high flux reactor / S. C. van der Marek ... [et al.]. Calibration of a manganese bath relative to Cf-252 nu-bar / D. M. Gilliam, A. T. Yue and M. Scott Dewey. Major upgrade of the reactor dosimetry interpretation methodology used at the CEA: general principle / C. Destouches ... [et al.] -- Oral session 5: power plant surveillance. The role of ex-vessel neutron dosimetry in reactor vessel surveillance in South Korea / B.-C. Kim ... [et al.]. Spanish RPV surveillance programmes: lessons learned and current activities / A. Ballesteros and X. Jardí. Atucha I nuclear power plant extended dosimetry and assessment / H. Blaumann ... [et al.]. Monitoring of radiation load of pressure vessels of Russian VVER in compliance with license amendments / G. Borodkin ... [et al.] -- Poster session 2: Test reactors, accelerators and advanced systems; cross sections, nuclear
Benefits and Perceptions of Public Health Accreditation Among Health Departments Not Yet Applying.
Heffernan, Megan; Kennedy, Mallory; Siegfried, Alexa; Meit, Michael
To identify the benefits and perceptions among health departments not yet participating in the public health accreditation program implemented by the Public Health Accreditation Board (PHAB). Quantitative and qualitative data were gathered via Web-based surveys of health departments that had not yet applied for PHAB accreditation (nonapplicants) and health departments that had been accredited for 1 year. Respondents from 150 nonapplicant health departments and 57 health departments that had been accredited for 1 year. The majority of nonapplicant health departments are reportedly conducting a community health assessment (CHA), community health improvement plan (CHIP), and health department strategic plan-3 documents that are required to be in place before applying for PHAB accreditation. To develop these documents, most nonapplicants are reportedly referencing PHAB requirements. The most commonly reported perceived benefits of accreditation among health departments that planned to or were undecided about applying for accreditation were as follows: increased awareness of strengths and weaknesses, stimulated quality improvement (QI) and performance improvement activities, and increased awareness of/focus on QI. Nonapplicants that planned to apply reported a higher level of these perceived benefits. Compared with health departments that had been accredited for 1 year, nonapplicants were more likely to report that their staff had no or limited QI knowledge or familiarity. The PHAB accreditation program has influenced the broader public health field-not solely health departments that have undergone accreditation. Regardless of their intent to apply for accreditation, nonapplicant health departments are reportedly referencing PHAB guidelines for developing the CHA, CHIP, and health department strategic plan. Health departments may experience benefits associated with accreditation prior to their formal involvement in the PHAB accreditation process. The most common
NAEYC Accreditation: A Decade of Learning and the Years Ahead.
ERIC Educational Resources Information Center
Bredekamp, Sue, Ed.; Willer, Barbara A., Ed.
The year 1995-96 marks the 10th anniversary of NAEYC accreditation. This collection brings together essays that examine what educators have learned from the past decade along with future directions for accreditation. The chapters focus on three broad themes: (1) effects of NAEYC accreditation on program quality and outcomes for children; (2)…
42 CFR 8.5 - Periodic evaluation of accreditation bodies.
Code of Federal Regulations, 2012 CFR
2012-10-01
... PROVISIONS CERTIFICATION OF OPIOID TREATMENT PROGRAMS Accreditation § 8.5 Periodic evaluation of... accreditation body are in compliance with the Federal opioid treatment standards. The evaluation will include a...
42 CFR 8.5 - Periodic evaluation of accreditation bodies.
Code of Federal Regulations, 2014 CFR
2014-10-01
... PROVISIONS CERTIFICATION OF OPIOID TREATMENT PROGRAMS Accreditation § 8.5 Periodic evaluation of... accreditation body are in compliance with the Federal opioid treatment standards. The evaluation will include a...
42 CFR 8.5 - Periodic evaluation of accreditation bodies.
Code of Federal Regulations, 2013 CFR
2013-10-01
... PROVISIONS CERTIFICATION OF OPIOID TREATMENT PROGRAMS Accreditation § 8.5 Periodic evaluation of... accreditation body are in compliance with the Federal opioid treatment standards. The evaluation will include a...
9 CFR 161.4 - Standards for accredited veterinarian duties.
Code of Federal Regulations, 2012 CFR
2012-01-01
... legally able to practice veterinary medicine. An accredited veterinarian shall perform the functions of an... eradication programs, including emergency programs. (i) An accredited veterinarian shall not use or dispense...
9 CFR 161.4 - Standards for accredited veterinarian duties.
Code of Federal Regulations, 2013 CFR
2013-01-01
... legally able to practice veterinary medicine. An accredited veterinarian shall perform the functions of an... eradication programs, including emergency programs. (i) An accredited veterinarian shall not use or dispense...
9 CFR 161.4 - Standards for accredited veterinarian duties.
Code of Federal Regulations, 2014 CFR
2014-01-01
... legally able to practice veterinary medicine. An accredited veterinarian shall perform the functions of an... eradication programs, including emergency programs. (i) An accredited veterinarian shall not use or dispense...
75 FR 34148 - Voluntary Private Sector Accreditation and Certification Preparedness Program
Federal Register 2010, 2011, 2012, 2013, 2014
2010-06-16
...] Voluntary Private Sector Accreditation and Certification Preparedness Program AGENCY: Federal Emergency...) announces its adoption of three standards for the Voluntary Private Sector Accreditation and Certification... DHS to develop and implement a Voluntary Private Sector Preparedness Accreditation and Certification...
DOE Office of Scientific and Technical Information (OSTI.GOV)
Niedbala, M; Save, C; Cygler, J
Purpose: To evaluate the feasibility of using optically stimulated luminescence dosimeters (OSLDs) for in-vivo dosimetry of patients undergoing Total Body and Total Marrow Irradiations (TBI and TMI). Methods: TBI treatments of 12 Gy were delivered in 6 BID fractions with the patient on a moving couch under a static 10 MV beam (Synergy, Elekta). TMI treatments of 18 Gy in 9 BID fractions were planned and delivered using a 6 MV TomoTherapy unit (Accuray). To provide a uniform dose to the entire patient length, the treatment was split into 2 adjacent fields junctioned in the thigh region. Our standard clinicalmore » practice involves in vivo dosimetry with MOSFETs for each TBI fraction and TLDs for at least one fraction of the TMI treatment for dose verification. In this study we also used OSLDs. Individual calibration coefficients were obtained for the OSLDs based on irradiations in a solid water phantom to the dose of 50 cGy from Elekta Synergy 10 MV (TBI) and 6 MV (TMI) beams. Calibration coefficients were calculated based on the OSLDs readings taken 2 hrs post-irradiation. For in vivo dosimetry OSLDs were placed alongside MOSFETs for TBI patients and in approximately the same locations as the TLDs for TMI patients. OSLDs were read 2 hours post treatment and compared to the MOSFET and TLD results. Results: OSLD measured doses agreed within 5% with MOSFET and TLD results, with the exception of the junction region in the TMI patient due to very high dose gradient and difficulty of precise and reproducible detector placement. Conclusion: OSLDs are useful for in vivo dosimetry of TBI and TMI patients. The quick post-treatment readout is an advantage over TLDs, allowing the results to be obtained between BID fractions, while wireless detectors are advantageous over MOSFETs for treatments involving a moving couch.« less
Thermoluminescent dosimetry in veterinary diagnostic radiology.
Hernández-Ruiz, L; Jimenez-Flores, Y; Rivera-Montalvo, T; Arias-Cisneros, L; Méndez-Aguilar, R E; Uribe-Izquierdo, P
2012-12-01
This paper presents the results of Environmental and Personnel Dosimetry made in a radiology area of a veterinary hospital. Dosimetry was realized using thermoluminescent (TL) materials. Environmental Dosimetry results show that areas closer to the X-ray equipment are safe. Personnel Dosimetry shows important measurements of daily workday in some persons near to the limit established by ICRP. TL results of radiation measurement suggest TLDs are good candidates as a dosimeter to radiation dosimetry in veterinary radiology. Copyright © 2012 Elsevier Ltd. All rights reserved.
Accreditation system for technical education programmes in India: A critical review
NASA Astrophysics Data System (ADS)
Prasad, G.; Bhar, C.
2010-05-01
This paper gives an overview of the Indian technical education system with regard to both its quantitative and qualitative scenario and upholds the value of accreditation in quality improvement and quality assurance of educational programmes. The paper presents a comparison of accreditation systems being followed in some important countries, including India, that are signatories or provisional members of Washington Accord. It also looks into the reasons of the sparse level of accreditation work completed by the National Board of Accreditation (NBA) since its inception. While mentioning strengths of the NBA accreditation system, the paper points out some shortcomings in the policy, self-assessment questionnaire, criteria, weightage assigned to criteria and rating scheme followed by NBA. Some important recommendations have also been made to render the accreditation system more effective and acceptable to various stakeholders of the technical education sector in India.
Developing of an automation for therapy dosimetry systems by using labview software
NASA Astrophysics Data System (ADS)
Aydin, Selim; Kam, Erol
2018-06-01
Traceability, accuracy and consistency of radiation measurements are essential in radiation dosimetry, particularly in radiotherapy, where the outcome of treatments is highly dependent on the radiation dose delivered to patients. Therefore it is very important to provide reliable, accurate and fast calibration services for therapy dosimeters since the radiation dose delivered to a radiotherapy patient is directly related to accuracy and reliability of these devices. In this study, we report the performance of in-house developed computer controlled data acquisition and monitoring software for the commercially available radiation therapy electrometers. LabVIEW® software suite is used to provide reliable, fast and accurate calibration services. The software also collects environmental data such as temperature, pressure and humidity in order to use to use these them in correction factor calculations. By using this software tool, a better control over the calibration process is achieved and the need for human intervention is reduced. This is the first software that can control frequently used dosimeter systems, in radiation thereapy field at hospitals, such as Unidos Webline, Unidos E, Dose-1 and PC Electrometers.
Ethics Education in CACREP-Accredited Counselor Education Programs
ERIC Educational Resources Information Center
Urofsky, Robert; Sowa, Claudia
2004-01-01
The authors present the results of a survey investigating ethics education practices in counselor education programs accredited by the Council for Accreditation of Counseling and Related Educational Programs and counselor educators' beliefs regarding ethics education. Survey responses describe current curricular approaches to ethics education,…
Due Process in the Accreditation Context: A Reply.
ERIC Educational Resources Information Center
Pelesh, Mark L.
1995-01-01
A previous analysis (Prairie and Chamberlain, 1994) of college and university due process rights when accreditation is threatened, which argues that accrediting agencies are quasigovernmental bodies and should be subject to constitutional due process constraints, is criticized. Recent trends in litigation concerning due process, recent…
ERIC Educational Resources Information Center
McKitrick, Sean A.
2005-01-01
The National Council for Accreditation of Teacher Education (NCATE) accredits more than half of the colleges of education in the United States. Several of its standards require teacher preparation programs to emphasize diversity in their curricula and to demonstrate that they are developing a professional environment wherein acceptance of varying…
75 FR 60773 - Voluntary Private Sector Accreditation and Certification Preparedness Program
Federal Register 2010, 2011, 2012, 2013, 2014
2010-10-01
...] Voluntary Private Sector Accreditation and Certification Preparedness Program AGENCY: Federal Emergency... concerns in the Voluntary Private Sector Accreditation and Certification Preparedness Program (PS-Prep...-53 (the 9/11 Act) mandated DHS to establish a voluntary private sector preparedness accreditation and...
Quantitative imaging for clinical dosimetry
NASA Astrophysics Data System (ADS)
Bardiès, Manuel; Flux, Glenn; Lassmann, Michael; Monsieurs, Myriam; Savolainen, Sauli; Strand, Sven-Erik
2006-12-01
Patient-specific dosimetry in nuclear medicine is now a legal requirement in many countries throughout the EU for targeted radionuclide therapy (TRT) applications. In order to achieve that goal, an increased level of accuracy in dosimetry procedures is needed. Current research in nuclear medicine dosimetry should not only aim at developing new methods to assess the delivered radiation absorbed dose at the patient level, but also to ensure that the proposed methods can be put into practice in a sufficient number of institutions. A unified dosimetry methodology is required for making clinical outcome comparisons possible.
22 CFR 41.23 - Accredited officials in transit.
Code of Federal Regulations, 2010 CFR
2010-04-01
... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Accredited officials in transit. 41.23 Section 41.23 Foreign Relations DEPARTMENT OF STATE VISAS VISAS: DOCUMENTATION OF NONIMMIGRANTS UNDER THE IMMIGRATION AND NATIONALITY ACT, AS AMENDED Foreign Government Officials § 41.23 Accredited officials in...
22 CFR 41.23 - Accredited officials in transit.
Code of Federal Regulations, 2012 CFR
2012-04-01
... 22 Foreign Relations 1 2012-04-01 2012-04-01 false Accredited officials in transit. 41.23 Section 41.23 Foreign Relations DEPARTMENT OF STATE VISAS VISAS: DOCUMENTATION OF NONIMMIGRANTS UNDER THE IMMIGRATION AND NATIONALITY ACT, AS AMENDED Foreign Government Officials § 41.23 Accredited officials in...
22 CFR 41.23 - Accredited officials in transit.
Code of Federal Regulations, 2011 CFR
2011-04-01
... 22 Foreign Relations 1 2011-04-01 2011-04-01 false Accredited officials in transit. 41.23 Section 41.23 Foreign Relations DEPARTMENT OF STATE VISAS VISAS: DOCUMENTATION OF NONIMMIGRANTS UNDER THE IMMIGRATION AND NATIONALITY ACT, AS AMENDED Foreign Government Officials § 41.23 Accredited officials in...
22 CFR 41.23 - Accredited officials in transit.
Code of Federal Regulations, 2014 CFR
2014-04-01
... 22 Foreign Relations 1 2014-04-01 2014-04-01 false Accredited officials in transit. 41.23 Section 41.23 Foreign Relations DEPARTMENT OF STATE VISAS VISAS: DOCUMENTATION OF NONIMMIGRANTS UNDER THE IMMIGRATION AND NATIONALITY ACT, AS AMENDED Foreign Government Officials § 41.23 Accredited officials in...
22 CFR 41.23 - Accredited officials in transit.
Code of Federal Regulations, 2013 CFR
2013-04-01
... 22 Foreign Relations 1 2013-04-01 2013-04-01 false Accredited officials in transit. 41.23 Section 41.23 Foreign Relations DEPARTMENT OF STATE VISAS VISAS: DOCUMENTATION OF NONIMMIGRANTS UNDER THE IMMIGRATION AND NATIONALITY ACT, AS AMENDED Foreign Government Officials § 41.23 Accredited officials in...
Increasing Institutional Effectiveness: A Continuous Effort after Accreditation.
ERIC Educational Resources Information Center
Chen, HongYu
West Virginia University at Parkersburg (WVUP) is a separately accredited campus of the University offering 2 baccalaureate, 10 associate, and 2 certificate programs. In response to concerns raised in a recent accreditation report, WVUP conducted a study examining student attitudes toward facilities, course scheduling, student advising,…
34 CFR 602.16 - Accreditation and preaccreditation standards.
Code of Federal Regulations, 2010 CFR
2010-07-01
... regarding the quality of the education or training provided by the institutions or programs it accredits... education or correspondence education, the agency's standards must effectively address the quality of an... 34 Education 3 2010-07-01 2010-07-01 false Accreditation and preaccreditation standards. 602.16...
Reference dosimetry of proton pencil beams based on dose-area product: a proof of concept.
Gomà, Carles; Safai, Sairos; Vörös, Sándor
2017-06-21
This paper describes a novel approach to the reference dosimetry of proton pencil beams based on dose-area product ([Formula: see text]). It depicts the calibration of a large-diameter plane-parallel ionization chamber in terms of dose-area product in a 60 Co beam, the Monte Carlo calculation of beam quality correction factors-in terms of dose-area product-in proton beams, the Monte Carlo calculation of nuclear halo correction factors, and the experimental determination of [Formula: see text] of a single proton pencil beam. This new approach to reference dosimetry proves to be feasible, as it yields [Formula: see text] values in agreement with the standard and well-established approach of determining the absorbed dose to water at the centre of a broad homogeneous field generated by the superposition of regularly-spaced proton pencil beams.
Essers, M; van Battum, L; Heijmen, B J
2001-11-01
In vivo dosimetry using thermoluminiscence detectors (TLD) is routinely performed in our institution to determine dose inhomogeneities in the match line region during chest wall irradiation. However, TLDs have some drawbacks: online in vivo dosimetry cannot be performed; generally, doses delivered by the contributing fields are not measured separately; measurement analysis is time consuming. To overcome these problems, the Joined Field Detector (JFD-5), a detector for match line in vivo dosimetry based on diodes, has been developed. This detector and its characteristics are presented. The JFD-5 is a linear array of 5 p-type diodes. The middle three diodes, used to measure the dose in the match line region, are positioned at 5-mm intervals. The outer two diodes, positioned at 3-cm distance from the central diode, are used to measure the dose in the two contributing fields. For three JFD-5 detectors, calibration factors for different energies, and sensitivity correction factors for non-standard field sizes, patient skin temperature, and oblique incidence have been determined. The accuracy of penumbra and match line dose measurements has been determined in phantom studies and in vivo. Calibration factors differ significantly between diodes and between photon and electron beams. However, conversion factors between energies can be applied. The correction factor for temperature is 0.35%/ degrees C, and for oblique incidence 2% at maximum. The penumbra measured with the JFD-5 agrees well with film and linear diode array measurements. JFD-5 in vivo match line dosimetry reproducibility was 2.0% (1 SD) while the agreement with TLD was 0.999+/-0.023 (1 SD). The JFD-5 can be used for accurate, reproducible, and fast on-line match line in vivo dosimetry.
A reusable OSL-film for 2D radiotherapy dosimetry
NASA Astrophysics Data System (ADS)
Wouter, Crijns; Dirk, Vandenbroucke; Paul, Leblans; Tom, Depuydt
2017-11-01
Optical stimulated luminescence (OSL) combines reusability, sub-mm resolution, and a linear dose response in a single radiation detection technology. Such a combination is currently lacking in radiotherapy dosimetry. But OSL-films have a strong energy dependent response to keV photons due to a relative high effective atomic number (Z eff). The current work studied the applicability of a 2D OSL-film with a reduced Z eff as (IMRT/VMAT) dosimeter. Based on their commercial OSL-film experience, Agfa Healthcare N.V. produced a new experimental OSL-film for RT dosimetry. This film had a lower effective atomic number compared to the films used in radiology. Typical 2D dosimeter requirements such as uniformity, dose response, signal stability with time, and angular dependence were evaluated. Additionally, the impact of a possible residual energy dependence was assessed for the infield as well as the out-of-field region of both static beams and standard intensity modulated patterns (chair and pyramid). The OSL-film’s reusable nature allowed for a film specific absolute and linear calibration including a flood-field uniformity correction. The OSL-film was scanned with a CR-15X engine based reader using a strict timing (i.e. 4 min after ‘beam on’ or as soon as possible) to account for spontaneous recombination. The OSL-film had good basic response properties: non-uniformities ⩽2.6%, a linear dose response (0-32 Gy), a linear signal decay (0.5% min-1) over the 20 min measured, and limited angular dependence ⩽2.6%. Due to variations of the energy spectrum, larger dose differences were noted outside the central region of the homogenous phantom and outside both static and IMRT fields. However, the OSL-film’s measured dose differences of the IMRT patterns were lower than those of Gafchromic EBT measurements ([-1.6%, 2.1%] versus [-2.9%, 3.6%]). The current OSL-film could be used as a reusable high resolution dosimeter with read-out immediately after
A reusable OSL-film for 2D radiotherapy dosimetry.
Wouter, Crijns; Dirk, Vandenbroucke; Paul, Leblans; Tom, Depuydt
2017-10-19
Optical stimulated luminescence (OSL) combines reusability, sub-mm resolution, and a linear dose response in a single radiation detection technology. Such a combination is currently lacking in radiotherapy dosimetry. But OSL-films have a strong energy dependent response to keV photons due to a relative high effective atomic number (Z eff ). The current work studied the applicability of a 2D OSL-film with a reduced Z eff as (IMRT/VMAT) dosimeter. Based on their commercial OSL-film experience, Agfa Healthcare N.V. produced a new experimental OSL-film for RT dosimetry. This film had a lower effective atomic number compared to the films used in radiology. Typical 2D dosimeter requirements such as uniformity, dose response, signal stability with time, and angular dependence were evaluated. Additionally, the impact of a possible residual energy dependence was assessed for the infield as well as the out-of-field region of both static beams and standard intensity modulated patterns (chair and pyramid). The OSL-film's reusable nature allowed for a film specific absolute and linear calibration including a flood-field uniformity correction. The OSL-film was scanned with a CR-15X engine based reader using a strict timing (i.e. 4 min after 'beam on' or as soon as possible) to account for spontaneous recombination. The OSL-film had good basic response properties: non-uniformities ⩽2.6%, a linear dose response (0-32 Gy), a linear signal decay (0.5% min -1 ) over the 20 min measured, and limited angular dependence ⩽2.6%. Due to variations of the energy spectrum, larger dose differences were noted outside the central region of the homogenous phantom and outside both static and IMRT fields. However, the OSL-film's measured dose differences of the IMRT patterns were lower than those of Gafchromic EBT measurements ([-1.6%, 2.1%] versus [-2.9%, 3.6%]). The current OSL-film could be used as a reusable high resolution dosimeter with read-out immediately after irradiation
Mrčela, I; Bokulić, T; Izewska, J; Budanec, M; Fröbe, A; Kusić, Z
2011-09-21
A commercial optically stimulated luminescence (OSL) dosimetry system was investigated for in vivo dosimetry in radiation therapy. Dosimetric characteristics of InLight dot dosimeters and a microStar reader (Landauer Inc.) were tested in (60)Co beams. The reading uncertainty of a single dosimeter was 0.6%. The reproducibility of a set of dosimeters after a single irradiation was 1.6%, while in repeated irradiations of the same dosimeters it was found to be 3.5%. When OSL dosimeters were optically bleached between exposures, the reproducibility of repeated measurements improved to 1.0%. Dosimeters were calibrated for the entrance dose measurements and a full set of correction factors was determined. A pilot patient study that followed phantom validation testing included more than 100 measured fields with a mean relative difference of the measured entrance dose from the expected dose of 0.8% and the standard deviation of 2.5%. In conclusion, these results demonstrate that OSL dot dosimeters represent a valid alternative to already established in vivo dosimetry systems.
NASA Astrophysics Data System (ADS)
Mrčela, I.; Bokulić, T.; Izewska, J.; Budanec, M.; Fröbe, A.; Kusić, Z.
2011-09-01
A commercial optically stimulated luminescence (OSL) dosimetry system was investigated for in vivo dosimetry in radiation therapy. Dosimetric characteristics of InLight dot dosimeters and a microStar reader (Landauer Inc.) were tested in 60Co beams. The reading uncertainty of a single dosimeter was 0.6%. The reproducibility of a set of dosimeters after a single irradiation was 1.6%, while in repeated irradiations of the same dosimeters it was found to be 3.5%. When OSL dosimeters were optically bleached between exposures, the reproducibility of repeated measurements improved to 1.0%. Dosimeters were calibrated for the entrance dose measurements and a full set of correction factors was determined. A pilot patient study that followed phantom validation testing included more than 100 measured fields with a mean relative difference of the measured entrance dose from the expected dose of 0.8% and the standard deviation of 2.5%. In conclusion, these results demonstrate that OSL dot dosimeters represent a valid alternative to already established in vivo dosimetry systems.
Zink, F E; McCollough, C H
1994-08-01
The unique geometry of electron-beam CT (EBCT) scanners produces radiation dose profiles with widths which can be considerably different from the corresponding nominal scan width. Additionally, EBCT scanners produce both complex (multiple-slice) and narrow (3 mm) radiation profiles. This work describes the measurement of the axial dose distribution from EBCT within a scattering phantom using film dosimetry methods, which offer increased convenience and spatial resolution compared to thermoluminescent dosimetry (TLD) techniques. Therapy localization film was cut into 8 x 220 mm strips and placed within specially constructed light-tight holders for placement within the cavities of a CT Dose Index (CTDI) phantom. The film was calibrated using a conventional overhead x-ray tube with spectral characteristics matched to the EBCT scanner (130 kVp, 10 mm A1 HVL). The films were digitized at five samples per mm and calibrated dose profiles plotted as a function of z-axis position. Errors due to angle-of-incidence and beam hardening were estimated to be less than 5% and 10%, respectively. The integral exposure under film dose profiles agreed with ion-chamber measurements to within 15%. Exposures measured along the radiation profile differed from TLD measurements by an average of 5%. The film technique provided acceptable accuracy and convenience in comparison to conventional TLD methods, and allowed high spatial-resolution measurement of EBCT radiation dose profiles.
What motivates professionals to engage in the accreditation of healthcare organizations?
Greenfield, David; Pawsey, Marjorie; Braithwaite, Jeffrey
2011-02-01
Motivated staff are needed to improve quality and safety in healthcare organizations. Stimulating and engaging staff to participate in accreditation processes is a considerable challenge. The purpose of this study was to explore the experiences of health executives, managers and frontline clinicians who participated in organizational accreditation processes: what motivated them to engage, and what benefits accrued? The setting was a large public teaching hospital undergoing a planned review of its accreditation status. A research protocol was employed to conduct semi-structured interviews with a purposive sample of 30 staff with varied organizational roles, from different professions, to discuss their involvement in accreditation. Thematic analysis of the data was undertaken. The analysis identified three categories, each with sub-themes: accreditation response (reactions to accreditation and the value of surveys); survey issues (participation in the survey, learning through interactions and constraints) and documentation issues (self-assessment report, survey report and recommendations). Participants' occupational role focuses their attention to prioritize aspects of the accreditation process. Their motivations to participate and the benefits that accrue to them can be positively self-reinforcing. Participants have a desire to engage collaboratively with colleagues to learn and validate their efforts to improve. Participation in the accreditation process promoted a quality and safety culture that crossed organizational boundaries. The insights into worker motivation can be applied to engage staff to promote learning, overcome organizational boundaries and improve services. The findings can be applied to enhance involvement with accreditation and, more broadly, to other quality and safety activities.
The use of the dicentric assay for biological dosimetry for radiation accidents in Bulgaria.
Hadjidekova, Valeria; Hristova, Rositsa; Ainsbury, Elizabeth A; Atanasova, Petya; Popova, Ljubomira; Staynova, Albena
2010-02-01
This paper details the construction of a 137Cs gamma calibration curve that has been established for dicentric assay and the testing and validation of the curve through biological dosimetry in three situations of suspected workplace overexposure that arose accidentally or through negligence or lack of appropriate safety measures. The three situations were: (1) suspected 137Cs contamination in a factory air supply; (2) suspected exposure to an industrial 192Ir source; and (3) accidental exposure of construction workers to radiation from a 60Co radiotherapy source in a hospital medical physics department. From a total of 24 potentially-exposed subjects, only one worker was found to have a statistically significant dose (0.16 Gy, 95% confidence intervals 0.02-0.43 Gy). In all other cases, the main function of the biological dosimetry was to reassure the subjects that any dose received was low.
21 CFR 900.4 - Standards for accreditation bodies.
Code of Federal Regulations, 2014 CFR
2014-04-01
... image quality, or upon request by FDA, the accreditation body shall review a facility's clinical images... review by the accreditation body demonstrates that a problem does exist with respect to image quality or... program shall: (i) Include requirements for clinical image review and phantom image review; (ii) Ensure...
21 CFR 900.4 - Standards for accreditation bodies.
Code of Federal Regulations, 2011 CFR
2011-04-01
... image quality, or upon request by FDA, the accreditation body shall review a facility's clinical images... review by the accreditation body demonstrates that a problem does exist with respect to image quality or... program shall: (i) Include requirements for clinical image review and phantom image review; (ii) Ensure...
21 CFR 900.4 - Standards for accreditation bodies.
Code of Federal Regulations, 2012 CFR
2012-04-01
... image quality, or upon request by FDA, the accreditation body shall review a facility's clinical images... review by the accreditation body demonstrates that a problem does exist with respect to image quality or... program shall: (i) Include requirements for clinical image review and phantom image review; (ii) Ensure...
21 CFR 900.4 - Standards for accreditation bodies.
Code of Federal Regulations, 2013 CFR
2013-04-01
... image quality, or upon request by FDA, the accreditation body shall review a facility's clinical images... review by the accreditation body demonstrates that a problem does exist with respect to image quality or... program shall: (i) Include requirements for clinical image review and phantom image review; (ii) Ensure...
The CPA Exam as a Postcurriculum Accreditation Assessment
ERIC Educational Resources Information Center
Barilla, Anthony G.; Jackson, Robert E.; Mooney, J. Lowell
2008-01-01
Business schools often attain accreditation to demonstrate program efficacy. J. A. Marts, J. D. Baker, and J. M. Garris (1988) hypothesized that candidates from Association to Advance Collegiate Schools of Business International (AACSB)-accredited accounting programs perform better on the CPA exam than do candidates from non-AACSB-accredited…
Palmer, Antony L; Bradley, David A; Nisbet, Andrew
2015-03-08
This work considers a previously overlooked uncertainty present in film dosimetry which results from moderate curvature of films during the scanning process. Small film samples are particularly susceptible to film curling which may be undetected or deemed insignificant. In this study, we consider test cases with controlled induced curvature of film and with film raised horizontally above the scanner plate. We also evaluate the difference in scans of a film irradiated with a typical brachytherapy dose distribution with the film naturally curved and with the film held flat on the scanner. Typical naturally occurring curvature of film at scanning, giving rise to a maximum height 1 to 2 mm above the scan plane, may introduce dose errors of 1% to 4%, and considerably reduce gamma evaluation passing rates when comparing film-measured doses with treatment planning system-calculated dose distributions, a common application of film dosimetry in radiotherapy. The use of a triple-channel dosimetry algorithm appeared to mitigate the error due to film curvature compared to conventional single-channel film dosimetry. The change in pixel value and calibrated reported dose with film curling or height above the scanner plate may be due to variations in illumination characteristics, optical disturbances, or a Callier-type effect. There is a clear requirement for physically flat films at scanning to avoid the introduction of a substantial error source in film dosimetry. Particularly for small film samples, a compression glass plate above the film is recommended to ensure flat-film scanning. This effect has been overlooked to date in the literature.
Australasian brachytherapy audit: results of the 'end-to-end' dosimetry pilot study.
Haworth, Annette; Wilfert, Lisa; Butler, Duncan; Ebert, Martin A; Todd, Stephen; Bucci, Joseph; Duchesne, Gillian M; Joseph, David; Kron, Tomas
2013-08-01
We present the results of a pilot study to test the feasibility of a brachytherapy dosimetry audit. The feasibility study was conducted at seven sites from four Australian states in both public and private centres. A purpose-built cylindrical water phantom was imaged using the local imaging protocol and a treatment plan was generated to deliver 1 Gy to the central (1 of 3) thermoluminescent dosimeter (TLD) from six dwell positions. All centres completed the audit, consisting of three consecutive irradiations, within a 2-h time period, with the exception of one centre that uses a pulsed dose rate brachytherapy unit. All TLD results were within 4.5% of the predicted value, with the exception of one subset where the dwell position step size was incorrectly applied. While the limited data collected in the study demonstrated considerable heterogeneity in clinical practice, the study proved a brachytherapy dosimetry audit to be feasible. Future studies should include verification of source strength using a Standard Dosimetry Laboratory calibrated chamber, a phantom that more closely mimics the clinical situation, a more comprehensive review of safety and quality assurance (QA) procedures including source dwell time and position accuracy, and a review of patient treatment QA procedures such as applicator position verification. © 2013 The Authors. Journal of Medical Imaging and Radiation Oncology © 2013 The Royal Australian and New Zealand College of Radiologists.
Siegfried, Alexa; Heffernan, Megan; Kennedy, Mallory; Meit, Michael
To identify the quality improvement (QI) and performance management benefits reported by public health departments as a result of participating in the national, voluntary program for public health accreditation implemented by the Public Health Accreditation Board (PHAB). We gathered quantitative data via Web-based surveys of all applicant and accredited public health departments when they completed 3 different milestones in the PHAB accreditation process. Leadership from 324 unique state, local, and tribal public health departments in the United States. Public health departments that have achieved PHAB accreditation reported the following QI and performance management benefits: improved awareness and focus on QI efforts; increased QI training among staff; perceived increases in QI knowledge among staff; implemented new QI strategies; implemented strategies to evaluate effectiveness and quality; used information from QI processes to inform decision making; and perceived achievement of a QI culture. The reported implementation of QI strategies and use of information from QI processes to inform decision making was greater among recently accredited health departments than among health departments that had registered their intent to apply but not yet undergone the PHAB accreditation process. Respondents from health departments that had been accredited for 1 year reported higher levels of staff QI training and perceived increases in QI knowledge than those that were recently accredited. PHAB accreditation has stimulated QI and performance management activities within public health departments. Health departments that pursue PHAB accreditation are likely to report immediate increases in QI and performance management activities as a result of undergoing the PHAB accreditation process, and these benefits are likely to be reported at a higher level, even 1 year after the accreditation decision.
Quality improvement and accreditation readiness in state public health agencies.
Madamala, Kusuma; Sellers, Katie; Beitsch, Leslie M; Pearsol, Jim; Jarris, Paul
2012-01-01
There were 3 specific objectives of this study. The first objective was to examine the progress of state/territorial health assessment, health improvement planning, performance management, and quality improvement (QI) activities at state/territorial health agencies and compare findings to the 2007 findings when available. A second objective was to examine respondent interest and readiness for national voluntary accreditation. A final objective was to explore organizational factors (eg, leadership and capacity) that may influence QI or accreditation readiness. Cross-sectional study. State and Territorial Public Health Agencies. Survey respondents were organizational leaders at State and Territorial Public Health Agencies. Sixty-seven percent of respondents reported having a formal performance management process in place. Approximately 77% of respondents reported a QI process in place. Seventy-three percent of respondents agreed or strongly agreed that they would seek accreditation and 36% agreed or strongly agreed that they would seek accreditation in the first 2 years of the program. In terms of accreditation prerequisites, a strategic plan was most frequently developed, followed by a state/territorial health assessment and health improvement plan, respectively. Advancements in the practice and applied research of QI in state public health agencies are necessary steps for improving performance. In particular, strengthening the measurement of the QI construct is essential for meaningfully assessing current practice patterns and informing future programming and policy decisions. Continued QI training and technical assistance to agency staff and leadership is also critical. Accreditation may be the pivotal factor to strengthen both QI practice and research. Respondent interest in seeking accreditation may indicate the perceived value of accreditation to the agency.
77 FR 70163 - Recognition of Entities for the Accreditation of Qualified Health Plans
Federal Register 2010, 2011, 2012, 2013, 2014
2012-11-23
... DEPARTMENT OF HEALTH AND HUMAN SERVICES [CMS-9961-N] Recognition of Entities for the Accreditation... as recognized accrediting entities for the purposes of fulfilling the accreditation requirement as... a recognized accrediting entity on a uniform timeline established by the applicable Exchange. On...
TEAC's Accreditation Process at a Glance, 2009-2011
ERIC Educational Resources Information Center
Teacher Education Accreditation Council, 2011
2011-01-01
The Teacher Education Accreditation Council (TEAC), founded in 1997, is dedicated to improving academic degree programs for professional educators--those who teach and lead in schools, pre-K through grade 12. TEAC accredits undergraduate and graduate programs, including alternate route programs, based on (1) the evidence they have that they…
Lessons from Ten Years of TEAC's Accrediting Activity
ERIC Educational Resources Information Center
Murray, Frank B.
2010-01-01
Founded in 1997, the Teacher Education Accreditation Council (TEAC) designed a system that balances three sources of evidence in a single accreditation system: (1) that the program's graduates are qualified, competent, and caring beginning teachers; (2) that the program faculty investigates the factors that improve program quality; and (3) that…
DOE Office of Scientific and Technical Information (OSTI.GOV)
Souri, S; Qian, X; Gill, G
Purpose: To investigate energy dependent effects of different dosimetry systems which can be used as in vivo dosimetry monitoring for intraoperative radiotherapy in therapeutic soft x-ray energy range. Methods: Three dosimetry systems were evaluated in therapeutic soft x-ray energy range: optically stimulated luminescent dosimeter (OSLD) nanoDots, radiochromic EBT2 and EBT3 films. The x-ray photons were produced by a Zeiss Intrabeam 50 kV x-ray radiotherapy system. Solid water and bolus slabs with different thicknesses were used in the process of irradiation. An aluminum filter set was used to measure HVLs of X-rays. Calibration curves were made at different depth of boluses.more » Results: Half Value Layers at depths of 0, 3, 10, and 20 mm of solid water were measured to represent the energy change versus depth, yielding 0.306, 0.482, 0.865 and 0.901 respectively and indicating nearly unchanged HVL beyond 1 cm depth. The responses of each system at different depths were normalized to the response at 2 cm depth. In film dosimetry, the response is calculated as optical density (OD). The results show that there is nearly the same energy dependence for EBT2 and EBT3. At a HVL of 0.482 mm Al, the relative responses of nanoDots and EBT3 are 0.85 ± 0.04 and 0.89 ± 0.03 compared to those at 0.901 mm Al HVL, respectively, indicating no obvious difference between those two systems within the measurement uncertainty. Conclusion: It was observed that the studied dosimeter response increases about 13% from the x-ray energy of 0.48 mm Al to 0.90 mm Al. Therefore, caution should be exercised in using an appropriate calibration curve, and x-ray beam hardening effect has to be taken into account.« less
The Schwarzschild effect of the dosimetry film Kodak EDR 2.
Djouguela, A; Kollhoff, R; Rubach, A; Harder, D; Poppe, B
2005-11-07
The magnitude of the Schwarzschild effect or failure of the reciprocity law has been experimentally investigated for the dosimetry film EDR 2 from Kodak. When the dose rate applied to achieve a given dose was reduced by a factor of 12, the net optical density was reduced by up to 5%. The clinical importance of this effect is negligible as long as the films are calibrated at a value of the dose rate approximately representative of the dose rates occurring in the target volume, but in target regions of strongly reduced dose rate the Schwarzschild effect should be allowed for by a correction of the net optical density.
A Survey of Clinical Faculty Calibration in Dental Hygiene Programs.
Dicke, Nichole L; Hodges, Kathleen O; Rogo, Ellen J; Hewett, Beverly J
2015-08-01
This study investigated the calibration efforts of entry-level dental hygiene programs in the U.S. Four aspects were explored, including attitudes, characteristics, quality and satisfaction, to evaluate current calibration practices. A descriptive comparative survey design was used. Directors of accredited dental hygiene programs (n=345) were asked to forward an electronic survey invitation to clinical faculty. Eighty-five directors forwarded the survey to 847 faculty; 45.3% (n=384) participated. The 37-item survey contained multiple-choice and Likert scale questions and was available for 3 weeks. Descriptive statistics were used to analyze demographic data and research questions. The Kruskal-Wallis, Spearman Correlation Coefficient and Mann-Whitney U tests were employed to analyze hypotheses (p=0.05). The demographic profile for participants revealed that most worked for institutions awarding associate entry-level degrees, had 1 to 10 years' experience, taught clinically and didactically, and held a master's degree. Clinical instructors valued calibration, believed it reduced variation and wanted more calibration. Some were not offered quality calibration. There was a difference between the entry-level degree awarded and the program's evaluation of clinical skill faculty reliability, as analyzed using the Kruskal-Wallis test (p=0.008). Additionally, full-time versus part-time educators reported more observed student frustration with faculty variance, as evaluated using the Mann-Whitney U test (p=0.001, bfp=0.004). Faculty members value calibration's potential benefits and want enhanced calibration efforts. Calibration efforts need to be improved to include standards for measuring intra- and inter-rater reliability and plans for resolving inconsistencies. More research is needed to determine effective calibration methods and their impact on student learning. Copyright © 2015 The American Dental Hygienists’ Association.
Federal Register 2010, 2011, 2012, 2013, 2014
2011-03-22
... Accreditation Program (NVLAP) is considering establishing an accreditation program for laboratories that test... the general accreditation criteria referenced in Sections 4 and 5 of the NIST handbook 150 to the test... accreditation, test and measurement equipment, personnel requirements, validation of test methods, and reporting...
An Analysis of Hospital Accreditation Policy in Iran
YOUSEFINEZHADI, Taraneh; MOSADEGHRAD, Ali Mohammad; ARAB, Mohammad; RAMEZANI, Mozhdeh; SARI, Ali AKBARI
2017-01-01
Background: Public policymaking is complex and lacks research evidences, particularly in the Eastern Mediterranean Region (EMR). This policy analysis aims to generate insights about the process of hospital accreditation policy making in Iran, to identify factors influencing policymaking and to evaluate utilization of evidence in policy making process. Methods: The study examined the policymaking process using Walt and Gilson framework. A qualitative research design was employed. Thirty key informant interviews with policymakers and stakeholders were conducted. In addition hundred and five related documents were reviewed. Data was analyzed using framework analysis. Results: The accreditation program was a decision made at Ministry of Health and Medical Education in Iran. Many healthcare stakeholders were involved and evidence from leading countries was used to guide policy development. Poor hospital managers’ commitment, lack of physicians’ involvement and inadequate resources were the main barriers in policy implementation. Furthermore, there were too many accreditations standards and criteria, surveyors were not well-trained, had little motivation for their work and there was low consistency among them. Conclusion: This study highlighted the complex nature of policymaking cycle and highlighted various factors influencing policy development, implementation and evaluation. An effective accreditation program requires a robust well-governed accreditation body, various stakeholders’ involvement, sufficient resources and sustainable funds, enough human resources, hospital managers’ commitment, and technical assistance to hospitals. PMID:29308378
Changes in deviation of absorbed dose to water among users by chamber calibration shift.
Katayose, Tetsurou; Saitoh, Hidetoshi; Igari, Mitsunobu; Chang, Weishan; Hashimoto, Shimpei; Morioka, Mie
2017-07-01
The JSMP01 dosimetry protocol had adopted the provisional 60 Co calibration coefficient [Formula: see text], namely, the product of exposure calibration coefficient N C and conversion coefficient k D,X . After that, the absorbed dose to water D w standard was established, and the JSMP12 protocol adopted the [Formula: see text] calibration. In this study, the influence of the calibration shift on the measurement of D w among users was analyzed. The intercomparison of the D w using an ionization chamber was annually performed by visiting related hospitals. Intercomparison results before and after the calibration shift were analyzed, the deviation of D w among users was re-evaluated, and the cause of deviation was estimated. As a result, the stability of LINAC, calibration of the thermometer and barometer, and collection method of ion recombination were confirmed. The statistical significance of standard deviation of D w was not observed, but that of difference of D w among users was observed between N C and [Formula: see text] calibration. Uncertainty due to chamber-to-chamber variation was reduced by the calibration shift, consequently reducing the uncertainty among users regarding D w . The result also pointed out uncertainty might be reduced by accurate and detailed instructions on the setup of an ionization chamber.
75 FR 70934 - Accreditation of SEA, Ltd., as a Commercial Laboratory
Federal Register 2010, 2011, 2012, 2013, 2014
2010-11-19
... DEPARTMENT OF HOMELAND SECURITY Customs and Border Protection Accreditation of SEA, Ltd., as a...: Notice of accreditation of SEA, Ltd., as a commercial laboratory. SUMMARY: Notice is hereby given that, pursuant to 19 CFR 151.12, SEA, Ltd., 7349 Worthington-Galena Road, Columbus, OH 43085, has been accredited...
History and Status of School Psychology Accreditation in the United States.
ERIC Educational Resources Information Center
Fagan, Thomas K.; Wells, Perri Dawn
2000-01-01
A history of school psychology accreditation and a chronology of program decisions are developed from perspectives on accreditation by the American Psychological Association (APA), the National Council for Accreditation in Teacher Education (NCATE), the National Association of School Psychologists (NASP), and the efforts of the APA/NASP Joint Task…
22 CFR 96.4 - Designation of accrediting entities by the Secretary.
Code of Federal Regulations, 2010 CFR
2010-04-01
... 22 Foreign Relations 1 2010-04-01 2010-04-01 false Designation of accrediting entities by the Secretary. 96.4 Section 96.4 Foreign Relations DEPARTMENT OF STATE LEGAL AND RELATED SERVICES ACCREDITATION... approval functions. Each accrediting entity's designation will be set forth in an agreement between the...
DOE Office of Scientific and Technical Information (OSTI.GOV)
Daci, Lulzime, E-mail: lulzime.daci@nodlandssykehuset.no; Malkaj, Partizan, E-mail: malkaj-p@hotmail.com
2016-03-25
In this study we analyzed and compared the dose distribution of different IMRT and VMAT plans with the intent to provide pre-treatment quality assurance using two different tools. Materials/Methods: We have used the electronic portal imaging device EPID after calibration to dose and correction for the background offset signal and also the Delta4 phantom after en evaluation of angular sensitivity. The Delta4 phantom has a two-dimensional array with ionization chambers. We analyzed three plans for each anatomical site calculated by Eclipse treatment planning system. The measurements were analyzed using γ-evaluation method with passing criteria 3% absolute dose and 3 mm distancemore » to agreement (DTA). For all the plans the range of score has been from 97% to 99% for gantry fixed at 0° while for rotational planes there was a slightly decreased pass rates and above 95%. Point measurement with a ionization chamber were done in additional to see the accuracy of portal dosimetry and to evaluate the Delta4 device to various dose rates. Conclusions: Both Delt4 and Portal dosimetry shows good results between the measured and calculated doses. While Delta4 is more accurate in measurements EPID is more time efficient. We have decided to use both methods in the first steps of IMRT and VMAT implementation and later on to decide which of the tools to use depending on the complexity of plans, how much accurate we want to be and the time we have on the machine.« less
The American College of Nurse-Midwives' dream becomes reality: The Division of Accreditation.
Carrington, Betty Watts; Burst, Helen Varney
2005-01-01
Recognized continuously by the US Department of Education since 1982 as a specialized accrediting agency, the American College of Nurse-Midwives' Division of Accreditation (DOA) accredits not only nurse-midwifery education programs at the postbaccalaureate or higher academic level as certificate and graduate programs for registered nurses (RNs), but also precertification programs for professional midwives from other countries who are licensed as RNs in the United States. The DOA also accredits midwifery education programs for non-nurses at the postbaccalaureate or higher academic level as certificate and graduate programs, and precertification programs for professional midwives from other countries. The accreditation process is a voluntary activity involving both nurse-midwifery and/or midwifery education programs and the DOA. Present plans include another expansion of recognition: to become an institutional accreditation agency for independent and proprietary schools and to continue as a programmatic accrediting agency. Since its inception, the accreditation process has been viewed as a positive development in nurse-midwifery education.
Certification, Accreditation, and Credentialing for 503A Compounding Pharmacies.
Pritchett, Jon; McCrory, Gary; Kraemer, Cheri; Jensen, Brenda; Allen, Loyd V
2018-01-01
The terms certification, accreditation, and credentialing are often used interchangeably when they apply to compounding-pharmacy qualifications, but they are not synonymous. The reasons for obtaining each, the requirements for each, and the benefits of each differ. Achieving such distinctions can negatively or positively affect the status of a pharmacy among peers and prescribers as well as a pharmacy's relationships with third-party payors. Changes in the third-party payor industry evolve constantly and, we suggest, will continue to do so. Compounding pharmacists must be aware of those changes to help ensure success in a highly competitive marketplace. To our knowledge at the time of this writing, there is no certification program for compounding pharmacists, although pharmacy technicians can achieve certification and may be required to do so by the state in which they practice (a topic beyond the scope of this article). For that reason, we primarily address accreditation and credentialing for 503A compounding pharmacies. In this article, the evolution of the third-party payment system for compounds is reviewed; the definitions of certification, accreditation, and credentialing are examined; and the benefits and recognition of obtaining accredited or credentialed status are discussed. Suggestions for selecting an appropriate agency that offers accreditation or credentialing, preparing for and undergoing an onsite survey, responding to findings, and maintaining a pharmacy practice that enables a successful survey outcome are presented. The personal experience of author CK during accreditation and credentialing is discussed, as is the role of a consultant (author BJ) in helping compounders prepare for the survey process. A list of agencies that offer accreditation and credentialing for compounding pharmacies is included for easy reference. Copyright© by International Journal of Pharmaceutical Compounding, Inc.
ERIC Educational Resources Information Center
Dickmeyer, Nathan
2002-01-01
Offers cautionary tales depicting how an "Enron mentality" infiltrated three universities and jeopardized their accreditation status. The schools were guilty, respectively, of bad bookkeeping, lack of strategy and stable leadership, and loss of academic integrity by selling degrees. (EV)
22 CFR 96.78 - Accrediting entity procedures to terminate adverse action.
Code of Federal Regulations, 2010 CFR
2010-04-01
... agency or person must request and obtain permission to make a new application from the accrediting entity... permission to reapply, the agency or person may file an application with that accrediting entity in... jurisdiction over its application. (d) If the accrediting entity cancels or refuses to renew an agency's or...
21 CFR 830.110 - Application for accreditation as an issuing agency.
Code of Federal Regulations, 2014 CFR
2014-04-01
... SERVICES (CONTINUED) MEDICAL DEVICES UNIQUE DEVICE IDENTIFICATION FDA Accreditation of an Issuing Agency.... (1) An applicant seeking initial FDA accreditation as an issuing agency shall notify FDA of its desire to be accredited by sending a notification by email to [email protected]fda.hhs.gov, or by correspondence to...
Quality assurance and accreditation of engineering education in Jordan
NASA Astrophysics Data System (ADS)
Aqlan, Faisal; Al-Araidah, Omar; Al-Hawari, Tarek
2010-06-01
This paper provides a study of the quality assurance and accreditation in the Jordanian higher education sector and focuses mainly on engineering education. It presents engineering education, accreditation and quality assurance in Jordan and considers the Jordan University of Science and Technology (JUST) for a case study. The study highlights the efforts undertaken by the faculty of engineering at JUST concerning quality assurance and accreditation. Three engineering departments were accorded substantial equivalency status by the Accreditation Board of Engineering and Technology in 2009. Various measures of quality improvement, including curricula development, laboratories improvement, computer facilities, e-learning, and other supporting services are also discussed. Further assessment of the current situation is made through two surveys, targeting engineering instructors and students. Finally, the paper draws conclusions and proposes recommendations to enhance the quality of engineering education at JUST and other Jordanian educational institutions.
Characterising an aluminium oxide dosimetry system.
Conheady, Clement F; Gagliardi, Frank M; Ackerly, Trevor
2015-09-01
In vivo dosimetry is recommended as a defence-in-depth strategy in radiotherapy treatments and is currently employed by clinics around the world. The characteristics of a new optically stimulated luminescence dosimetry system were investigated for the purpose of replacing an aging thermoluminescence dosimetry system for in vivo dosimetry. The stability of the system was not sufficient to satisfy commissioning requirements and therefore it has not been released into clinical service at this time.
Indoor calibration of Sky Quality Meters: Linearity, spectral responsivity and uncertainty analysis
NASA Astrophysics Data System (ADS)
Pravettoni, M.; Strepparava, D.; Cereghetti, N.; Klett, S.; Andretta, M.; Steiger, M.
2016-09-01
The indoor calibration of brightness sensors requires extremely low values of irradiance in the most accurate and reproducible way. In this work the testing equipment of an ISO 17025 accredited laboratory for electrical testing, qualification and type approval of solar photovoltaic modules was modified in order to test the linearity of the instruments from few mW/cm2 down to fractions of nW/cm2, corresponding to levels of simulated brightness from 6 to 19 mag/arcsec2. Sixteen Sky Quality Meter (SQM) produced by Unihedron, a Canadian manufacturer, were tested, also assessing the impact of the ageing of their protective glasses on the calibration coefficients and the drift of the instruments. The instruments are in operation on measurement points and observatories at different sites and altitudes in Southern Switzerland, within the framework of OASI, the Environmental Observatory of Southern Switzerland. The authors present the results of the calibration campaign: linearity; brightness calibration, with and without protective glasses; transmittance measurement of the glasses; and spectral responsivity of the devices. A detailed uncertainty analysis is also provided, according to the ISO 17025 standard.
Bruza, Petr; Gollub, Sarah L; Andreozzi, Jacqueline M; Tendler, Irwin I; Williams, Benjamin B; Jarvis, Lesley A; Gladstone, David J; Pogue, Brian W
2018-05-02
The purpose of this study was to measure surface dose by remote time-gated imaging of plastic scintillators. A novel technique for time-gated, intensified camera imaging of scintillator emission was demonstrated, and key parameters influencing the signal were analyzed, including distance, angle and thickness. A set of scintillator samples was calibrated by using thermo-luminescence detector response as reference. Examples of use in total skin electron therapy are described. The data showed excellent room light rejection (signal-to-noise ratio of scintillation SNR ≈ 470), ideal scintillation dose response linearity, and 2% dose rate error. Individual sample scintillation response varied by 7% due to sample preparation. Inverse square distance dependence correction and lens throughput error (8% per meter) correction were needed. At scintillator-to-source angle and observation angle <50°, the radiant energy fluence error was smaller than 1%. The achieved standard error of the scintillator cumulative dose measurement compared to the TLD dose was 5%. The results from this proof-of-concept study documented the first use of small scintillator targets for remote surface dosimetry in ambient room lighting. The measured dose accuracy renders our method to be comparable to thermo-luminescent detector dosimetry, with the ultimate realization of accuracy likely to be better than shown here. Once optimized, this approach to remote dosimetry may substantially reduce the time and effort required for surface dosimetry.
NASA Astrophysics Data System (ADS)
Bruza, Petr; Gollub, Sarah L.; Andreozzi, Jacqueline M.; Tendler, Irwin I.; Williams, Benjamin B.; Jarvis, Lesley A.; Gladstone, David J.; Pogue, Brian W.
2018-05-01
The purpose of this study was to measure surface dose by remote time-gated imaging of plastic scintillators. A novel technique for time-gated, intensified camera imaging of scintillator emission was demonstrated, and key parameters influencing the signal were analyzed, including distance, angle and thickness. A set of scintillator samples was calibrated by using thermo-luminescence detector response as reference. Examples of use in total skin electron therapy are described. The data showed excellent room light rejection (signal-to-noise ratio of scintillation SNR ≈ 470), ideal scintillation dose response linearity, and 2% dose rate error. Individual sample scintillation response varied by 7% due to sample preparation. Inverse square distance dependence correction and lens throughput error (8% per meter) correction were needed. At scintillator-to-source angle and observation angle <50°, the radiant energy fluence error was smaller than 1%. The achieved standard error of the scintillator cumulative dose measurement compared to the TLD dose was 5%. The results from this proof-of-concept study documented the first use of small scintillator targets for remote surface dosimetry in ambient room lighting. The measured dose accuracy renders our method to be comparable to thermo-luminescent detector dosimetry, with the ultimate realization of accuracy likely to be better than shown here. Once optimized, this approach to remote dosimetry may substantially reduce the time and effort required for surface dosimetry.
Chang, Hoo-Sun
2012-01-01
On July 23rd, 2010 a revised medical law (Article 58) was passed to change existing evaluation system of medical institutions to an accreditation system. The new healthcare accreditation system was introduced to encourage medical institutions to work voluntarily and continuously to improve patient safety and medical service quality. Changes regarding the healthcare accreditation system included the establishment of an accreditation agency, the voluntary participation of medical institutions, accreditation standards centering on the treatment process and patient safety, tracing methodology, and the announcement of comprehensive results concerning accreditation. Despite varying views on the healthcare accreditation system, including some that are critical, it is meaningful that the voluntary nature of the system acknowledges that the medical institutions must be active agents in improving medical service quality. Healthcare quality is not improved instantaneously, but instead gradually through continuous communication within the clinical field. For this accreditation system to be successful, followings are essential: the accreditation agency becomes financially independent and is managed efficiently, the autonomy and regulation surrounding the system are balanced, the professionalism of the system is ensured, and the medical field plays an active role in the operation of the system. PMID:22661873
Accreditation in Kinesiology: The Process, Criticism and Controversy, and the Future
ERIC Educational Resources Information Center
Templin, Thomas J.; Blankenship, Bonnie Tjeerdsma
2007-01-01
The question of accreditation has been quite controversial in higher education. Some consider accreditation as a necessary "evil" while others reject it outright. It is a process designed to promote quality assurance and improvement in institutions and programs, yet one mired in various issues. While accreditation is controversial in a number of…
Regional Accrediting Faces New Challenges
ERIC Educational Resources Information Center
Robb, Felix C.
1972-01-01
As institutions responsive to public demand, community colleges can play an important role in strengthening public understanding of and appreciation for voluntary, non-governmental regional accreditation. (NF)
Rizk, C; Vanhavere, F
2016-09-01
The personal dosimetry service at the Lebanese Atomic Energy Commission uses Harshaw 8814 cards with LiF:Mg,Ti detectors. The dosemeters are read in a Harshaw 6600 TLD reader. In the process of accreditation for the ISO 17025 standard((1)), different influence factors are investigated and the uncertainty has been determined. The Individual Monitoring Service Laboratory-LAEC reads the dosemeters once it receives them from the customer, and new cards are immediately given for the next wearing period. The wearing period is 2 months. The dosemeter results are reported to the customers without background subtraction. Both Hp(10) and Hp(0.07) are reported. For this paper, only the uncertainty on Hp(10) will be focussed. The following factors are taken into account for the uncertainty: calibration factor, dosemeter homogeneity and repeatability, energy and angular dependence, non-linearity, temperature dependence, etc. Also the detection limit was determined. One of the important factors is the correction for fading. This fading correction depends on the procedure used such as storage temperatures, the time-temperature profile of the read-out, pre-heat and annealing conditions. Pre- and post-irradiation fading curves were measured for a storage period up to 182 d at room temperature (15-25°C). The resulting final combined standard uncertainty on the reported doses is of the order of 24 % for doses of ∼1 mSv. © The Author 2015. Published by Oxford University Press. All rights reserved. For Permissions, please email: journals.permissions@oup.com.
Overview of Computer Security Certification and Accreditation. Final Report.
ERIC Educational Resources Information Center
Ruthberg, Zella G.; Neugent, William
Primarily intended to familiarize ADP (automatic data processing) policy and information resource managers with the approach to computer security certification and accreditation found in "Guideline to Computer Security Certification and Accreditation," Federal Information Processing Standards Publications (FIPS-PUB) 102, this overview…
[Effects of the ISO 15189 accreditation on Nagoya University Hospital].
Yoshiko, Kenichi
2012-07-01
The Department of Clinical Laboratory, Nagoya University Hospital acquired ISO 15189 accreditation in November, 2009. The operation of our Quality Management System (QMS) was first surveyed in October, 2010. In this paper, we reported the activity for the preparation and operation of our QMS and the effects of ISO 15189 accreditation. We investigated the changes in the number and content on nonconformities, incident reports and complaints before and after accreditation as indicators to evaluate the effect of ISO 15189 accreditation. Post accreditation, the number of nonconformities and incident reports decreased, seeming to show an improvement of quality of the laboratory activity; however, the number of complaints increased. We identified the increase of complaints at the phlebotomy station. There had been some problems with blood sampling in the past, but it seemed that staff had a high level of concern regarding these problems at the phlebotomy station and took appropriate measures to resolve the complaints. We confirmed that the ISO 15189 accreditation was instrumental in the improvements of the safety and efficiency on laboratory works. However there was a problem that increase of overtime works to operate the QMS. We deal with development of a laboratory management system using IT recourses to solve the problem.
DOE Office of Scientific and Technical Information (OSTI.GOV)
Becker, S; Mossahebi, S; Yi, B
Purpose: A dedicated stereotactic breast radiotherapy device, GammaPod, was developed to treat early stage breast cancer. The first clinical unit was installed and commissioned at University of Maryland. We report our methodology of absolute dosimetry in multiple calibration conditions and dosimetric verifications of treatment plans produced by the system. Methods: GammaPod unit is comprised of a rotating hemi-spherical source carrier containing 36 Co-60 sources and a concentric tungsten collimator providing beams of 15 and 25 mm. Absolute dose calibration formalism was developed with modifications to AAPM protocols for unique geometry and different calibration medium (acrylic, polyethylene or liquid water). Breastmore » cup-size specific and collimator output factors were measured and verified with respect to Monte-Carlo simulations for single isocenter plans. Multiple isocenter plans were generated for various target size, location and cup-sizes in phantoms and 20 breast cancer patients images. Stereotactic mini-farmer chamber, OSL and TLD detectors as well as radio-chromic films were used for dosimetric measurements. Results: At the time of calibration (1/14/2016), absolute dose rate of the GammaPod was established to be 2.10 Gy/min in acrylic for 25 mm for sources installed in March 2011. Output factor for 15 mm collimator was measured to be 0.950. Absolute dose calibration was independently verified by IROC-Houston with a TLD/Institution ratio of 0.99. Cup size specific output measurements in liquid water for single isocenter were found to be within 3.0% of MC simulations. Point-dose measurements of multiple isocenter treatment plans were found to be within −1.0 ± 1.2 % of treatment planning system while 2-dimensional gamma analysis yielded a pass rate of 97.9 ± 2.2 % using gamma criteria of 3% and 2mm. Conclusion: The first GammaPod treatment unit for breast stereotactic radiotherapy was successfully installed, calibrated and commissioned for patient
The use of new GAFCHROMIC EBT film for 125I seed dosimetry in Solid Water phantom.
Chiu-Tsao, Sou-Tung; Medich, David; Munro, John
2008-08-01
Radiochromic film dosimetry has been extensively used for intravascular brachytherapy applications for near field within 1 cm from the sources. With the recent introduction of new model of radiochromic films, GAFCHROMIC EBT, with higher sensitivity than earlier models, it is promising to extend the distances out to 5 cm for low dose rate (LDR) source dosimetry. In this study, the use of new model GAFCHROMIC EBT film for 125I seed dosimetry in Solid Water was evaluated for radial distances from 0.06 cm out to 5 cm. A multiple film technique was employed for four 125I seeds (Implant Sciences model 3500) with NIST traceable air kerma strengths. Each experimental film was positioned in contact with a 125I seed in a Solid Water phantom. The products of the air kerma strength and exposure time ranged from 8 to 3158 U-h, with the initial air kerma strength of 6 U in a series of 25 experiments. A set of 25 calibration films each was sequentially exposed to one 125I seed at about 0.58 cm distance for doses from 0.1 to 33 Gy. A CCD camera based microdensitometer, with interchangeable green (520 nm) and red (665 nm) light boxes, was used to scan all the films with 0.2 mm pixel resolution. The dose to each 125I calibration film center was calculated using the air kerma strength of the seed (incorporating decay), exposure time, distance from seed center to film center, and TG43U1S1 recommended dosimetric parameters. Based on the established calibration curve, dose conversion from net optical density was achieved for each light source. The dose rate constant was determined as 0.991 cGy U(-1)h(-1) (+/-6.9%) and 1.014 cGy U(-1)h(-1) (+/-6.8%) from films scanned using green and red light sources, respectively. The difference between these two values was within the uncertainty of the measurement. Radial dose function and 2D anisotropy function were also determined. The results obtained using the two light sources corroborated each other. We found good agreement with the TG43U1S1
Accredited Internship and Postdoctoral Programs for Training in Psychology: 2012
ERIC Educational Resources Information Center
American Psychologist, 2012
2012-01-01
This is the official listing of accredited internship and postdoctoral residency programs in psychology. It reflects all Commission on Accreditation decisions through July 22, 2012. (Contains 15 footnotes.)
Accreditation of Individualized Quality Control Plans by the College of American Pathologists.
Hoeltge, Gerald A
2017-03-01
The Laboratory Accreditation Program of the College of American Pathologists (CAP) began in 2015 to allow accredited laboratories to devise their own strategies for quality control of laboratory testing. Participants now have the option to implement individualized quality control plans (IQCPs). Only nonwaived testing that features an internal control (built-in, electronic, or procedural) is eligible for IQCP accreditation. The accreditation checklists that detail the requirements have been peer-reviewed by content experts on CAP's scientific resource committees and by a panel of accreditation participants. Training and communication have been key to the successful introduction of the new IQCP requirements. Copyright © 2016 Elsevier Inc. All rights reserved.
Federal Register 2010, 2011, 2012, 2013, 2014
2013-11-05
...] Medicare & Medicaid Programs: Application From the Accreditation Commission for Health Care for Continued... Accreditation Commission for Health Care (ACHC) for continued recognition as a national accrediting organization...) announcing Accreditation Commission for Health Care's request for approval of its hospice accreditation...
Thermoluminescent dosimetry in rotary-dual technique of the total skin electron irradiation.
Piotrowski, T; Fundowicz, D; Pawlaczyk, M; Malicki, J
2003-01-01
The aim of the study was to discuss the results of thermoluminescent dosimetry (TLD) in rotary-dual technique of the total skin electron irradiation (TSEI RD), to confirm beam calibration and monitor unit calculations and to provide data for making clinical decisions. Between May 2001 and April 2002, in 3 cases of mycosis fungoides, 736 dosimetric checks were performed in 34 points at the skin. CaF2:MnTLD-400 cubes (1/8"x1/8"x0.015") were used for in vivo dosimetry. Doses were computed and analyzed for all locations. Percent of described dose and SD for the following localizations from 34 points were: anterior abdomen (reference point) 100+/-6%, upper back 100+/-8%, right calf 98+/-10%, left foot (mid dorsum) 97+/-8%, posterior neck 93+/-6%, right hand (mid dorsum) 78+/-10%, hand fingers 57+/-10%, top of right shoulder 56+/-14%, left groin 35+/-20%, perineum 22+/-17%. The correlations between patient's height and measured doses were sufficient for the following localizations: scalp (top rear), occiput, elbows, hand fingers and hands (mid dorsum). The correlations between obesity index and measured doses were sufficient for the following localizations: shoulders and lateral neck, groins, and perineum. Dosimetric checks at the reference point confirm that our beam calibration technique and monitor unit calculation are accurate. TLD shows that for some parts of the skin such as shoulder, hands and perineum boost fields were required. The correlations with obesity index and height for several sites suggest that boost fields must be customized for each patient.
NASA Astrophysics Data System (ADS)
Druzhyna, S.; Datz, H.; Horowitz, Y. S.; Oster, L.; Orion, I.
2016-06-01
Following a nuclear accident or terror attack involving the dispersal of radioactive substances, radiation dose assessment to first responders and the members of the public is essential. The need for a retrospective assessment of the radiation dose to those possibly affected is, therefore, obligatory. The present study examines the potential use of Israeli household salt as a retrospective dosimeter (RD). The experiments were carried out on Israeli salt samples (NaCl) following a Nielsen market track survey based on scanning data representing the barcoded market, including organized and independent retail chains and a sample of private minimarkets and supermarkets. The technique used was thermoluminescence (TL) dosimetry. Salt samples were exposed to levels of dose from 0.5 mGy to 300 Gy at the Israeli Secondary Standard Dosimetry Laboratory of the Soreq Nuclear Research Center using a calibrated 137Cs source. Our emphasis has been on a detailed investigation of the basic dosimetric characteristics of the salts including: (i) glow curve analysis (ii) individual glow peak dose response (iii) reproducibility (iv) estimation of minimal measurable dose (v) effect of nitrogen readout, (vi) influence of humidity during pre-irradiation storage and (vii) light induced fading. The results are sufficiently favorable to lead to the conclusion that the Israeli household salts can serve as a pragmatic potential candidate for RD under certain restricted conditions. Occasional pre-calibration of the major salt brands in a dedicated laboratory may be essential depending on the required accuracy in the estimation of dose and consequent clinical evaluation.
7 CFR 205.500 - Areas and duration of accreditation.
Code of Federal Regulations, 2010 CFR
2010-01-01
... SERVICE (Standards, Inspections, Marketing Practices), DEPARTMENT OF AGRICULTURE (CONTINUED) ORGANIC FOODS PRODUCTION ACT PROVISIONS NATIONAL ORGANIC PROGRAM Accreditation of Certifying Agents § 205.500 Areas and... accreditation to certify organic production or handling operations if: (1) USDA determines, upon the request of...
Accreditation's Role in Bolstering Resilience in the Face of the Zika Virus Outbreak.
Philip, Celeste; Wells, Kelli T; Eggert, Russell; Elmore, Jennifer; Jean, Reynald; Johnson, Jennifer; Lane, Jeanne; Lopez, Ximena; Rivera, Lillian; Samir, Elmir; Strokin, Natasha; Villalta, Yesenia; Ynestroza, Rene
The Florida Department of Health (Department) received accreditation status as an integrated public health system from the Public Health Accreditation Board (PHAB) in 2 phases: the State Health Office received accreditation in June 2014 and the 67 county health departments received accreditation in March 2016. Six weeks after PHAB awarded accreditation to the Department as an integrated public health system in March 2016, the World Health Organization declared the Zika outbreak in the Americas a Public Health Emergency of International Concern. Even in that short time, integrated public health accreditation, along with the other components of the Department's performance management system, allowed the Department to address this public health emergency, especially in Miami-Dade County, where the impact of Zika was significant. This case report describes the local response in Miami-Dade County and supporting statewide efforts. Public health departments should consider how public health accreditation could strengthen their ability to fulfill their public health mission. This article provides rationale for state and local health departments to seek accreditation.
International Education and Institutional Accreditation.
ERIC Educational Resources Information Center
Crow, Steven D.
1988-01-01
Questions whether voluntary self-regulation as practiced through institutional accreditation can adequately regulate expanding international education activities. Points to challenges related to legality, international linkages, curricula, and regionalism. (DMM)
The Accreditation Process in Mississippi from the Perspective of Community College Administrators
ERIC Educational Resources Information Center
Hollingsworth, Stacey Smith
2010-01-01
Research studies show that potential barriers may hinder a successful accreditation process. This research study examined perceptions of Mississippi's community/junior college administrators relating to the accreditation process in general, their communication with the regional accrediting agency, and their institution's facilitation of the…
78 FR 45917 - National Committee on Foreign Medical Education and Accreditation Meeting
Federal Register 2010, 2011, 2012, 2013, 2014
2013-07-30
... United States medical schools. Comparability of the applicable accreditation standards is an eligibility... comparable to the standards of accreditation applied to medical schools in the United States and/or reports... DEPARTMENT OF EDUCATION National Committee on Foreign Medical Education and Accreditation Meeting...
The Optometric Residency Accreditation Process--Planning for the Future.
ERIC Educational Resources Information Center
Suchoff, Irwin B.; And Others
1995-01-01
The American Optometric Association's current review of procedures for accrediting optometric residencies is discussed. Reasons for the review (projected growth of programs and revised standards) are discussed, procedures currently in place for accrediting programs in osteopathy, dentistry, pharmacy, podiatry, and optometry are summarized; and…
Accreditation and Continuous Quality Improvement in Athletic Training Education.
ERIC Educational Resources Information Center
Peer, Kimberly S.; Rakich, Jonathon S.
2000-01-01
Describes the application of the continuous quality improvement model, commonly associated with the business sector, to entry-level athletic training education programs accredited by the Commission on the Accreditation of Allied Health Education Programs. After discussing historical perspectives on athletic training education programs, the paper…
34 CFR 602.11 - Geographic scope of accrediting activities.
Code of Federal Regulations, 2010 CFR
2010-07-01
... 34 Education 3 2010-07-01 2010-07-01 false Geographic scope of accrediting activities. 602.11 Section 602.11 Education Regulations of the Offices of the Department of Education (Continued) OFFICE OF POSTSECONDARY EDUCATION, DEPARTMENT OF EDUCATION THE SECRETARY'S RECOGNITION OF ACCREDITING AGENCIES The...
9 CFR 77.28 - Accreditation preparatory States or zones.
Code of Federal Regulations, 2010 CFR
2010-01-01
... TUBERCULOSIS Captive Cervids § 77.28 Accreditation preparatory States or zones. (a) The following are... the “Uniform Methods and Rules—Bovine Tuberculosis Eradication” (January 22, 1999, edition), which is... tuberculosis is diagnosed within an accreditation preparatory State or zone in an animal not specifically...
42 CFR 410.143 - Requirements for approved accreditation organizations.
Code of Federal Regulations, 2014 CFR
2014-10-01
... 42 Public Health 2 2014-10-01 2014-10-01 false Requirements for approved accreditation organizations. 410.143 Section 410.143 Public Health CENTERS FOR MEDICARE & MEDICAID SERVICES, DEPARTMENT OF... decisions and any accreditation-related information that CMS may require (including corrective action plans...
9 CFR 77.28 - Accreditation preparatory States or zones.
Code of Federal Regulations, 2013 CFR
2013-01-01
... TUBERCULOSIS Captive Cervids § 77.28 Accreditation preparatory States or zones. (a) The following are... the “Uniform Methods and Rules—Bovine Tuberculosis Eradication” (January 22, 1999, edition), which is... tuberculosis is diagnosed within an accreditation preparatory State or zone in an animal not specifically...
9 CFR 77.28 - Accreditation preparatory States or zones.
Code of Federal Regulations, 2014 CFR
2014-01-01
... TUBERCULOSIS Captive Cervids § 77.28 Accreditation preparatory States or zones. (a) The following are... the “Uniform Methods and Rules—Bovine Tuberculosis Eradication” (January 22, 1999, edition), which is... tuberculosis is diagnosed within an accreditation preparatory State or zone in an animal not specifically...
9 CFR 77.28 - Accreditation preparatory States or zones.
Code of Federal Regulations, 2012 CFR
2012-01-01
... TUBERCULOSIS Captive Cervids § 77.28 Accreditation preparatory States or zones. (a) The following are... the “Uniform Methods and Rules—Bovine Tuberculosis Eradication” (January 22, 1999, edition), which is... tuberculosis is diagnosed within an accreditation preparatory State or zone in an animal not specifically...
9 CFR 77.28 - Accreditation preparatory States or zones.
Code of Federal Regulations, 2011 CFR
2011-01-01
... TUBERCULOSIS Captive Cervids § 77.28 Accreditation preparatory States or zones. (a) The following are... the “Uniform Methods and Rules—Bovine Tuberculosis Eradication” (January 22, 1999, edition), which is... tuberculosis is diagnosed within an accreditation preparatory State or zone in an animal not specifically...
7 CFR 353.8 - Accreditation of non-government facilities.
Code of Federal Regulations, 2011 CFR
2011-01-01
... relationship to a larger corporate entity; and (iv) A description of the specific laboratory testing or... the facility is seeking accreditation must be identified and must possess the training, education, or... inspection services for which the facility seeks accreditation, and that training, education, or experience...
Ulkowski, Piotr; Bulski, Wojciech; Chełmiński, Krzysztof
2015-10-01
Unidos 10001, Unidos E (10008/10009) and Dose 1 electrometers from 14 radiotherapy centres were calibrated 3-4 times over a long period of time, together with Farmer type (PTW 30001, 30013, Nuclear Enterprises 2571 and Scanditronix-Wellhofer FC65G) cylindrical ionization chambers and plane-parallel type chambers (PTW Markus 23343 and Scanditronix-Wellhofer PPC05). On the basis of the long period of repetitive establishing of calibration coefficients for the same electrometers and ionization chambers, the accuracy of electrometers and the long-term stability of ionization chambers were examined. All measurements were carried out at the same laboratory, by the same staff, according to the same IAEA recommendations. A good accuracy and long-term stability of the dosimeters used in Polish radiotherapy centres was observed. These values were within 0.1% for electrometers and 0.2% for the chambers with electrometers. Furthermore, these values were not observed to vary over time. The observations confirm the opinion that the requirement of calibration of the dosimeters more often than every 2 years is not justified. Copyright © 2015 Elsevier Ltd. All rights reserved.
Bradley, David A.; Nisbet, Andrew
2015-01-01
This work considers a previously overlooked uncertainty present in film dosimetry which results from moderate curvature of films during the scanning process. Small film samples are particularly susceptible to film curling which may be undetected or deemed insignificant. In this study, we consider test cases with controlled induced curvature of film and with film raised horizontally above the scanner plate. We also evaluate the difference in scans of a film irradiated with a typical brachytherapy dose distribution with the film naturally curved and with the film held flat on the scanner. Typical naturally occurring curvature of film at scanning, giving rise to a maximum height 1 to 2 mm above the scan plane, may introduce dose errors of 1% to 4%, and considerably reduce gamma evaluation passing rates when comparing film‐measured doses with treatment planning system‐calculated dose distributions, a common application of film dosimetry in radiotherapy. The use of a triple‐channel dosimetry algorithm appeared to mitigate the error due to film curvature compared to conventional single‐channel film dosimetry. The change in pixel value and calibrated reported dose with film curling or height above the scanner plate may be due to variations in illumination characteristics, optical disturbances, or a Callier‐type effect. There is a clear requirement for physically flat films at scanning to avoid the introduction of a substantial error source in film dosimetry. Particularly for small film samples, a compression glass plate above the film is recommended to ensure flat‐film scanning. This effect has been overlooked to date in the literature. PACS numbers: 87.55.Qr, 87.56.bg, 87.55.km PMID:26103181
Perceptions of Leaders and Clinician Educators on the Impact of International Accreditation.
Archuleta, Sophia; Ibrahim, Halah; Stadler, Dora J; Shah, Nina G; Chew, Nicholas W; Cofrancesco, Joseph
2015-11-01
Graduate medical education (GME) is responding to calls for reform by adopting competency-based frameworks and, in some countries, by rapidly implementing external accreditation systems. The Accreditation Council for Graduate Medical Education International (ACGME-I) began accrediting institutions in 2009. This study aimed to describe ACGME-I-accredited institutions and explore perceptions of their leaders and clinician educators (CEs) regarding preparedness, challenges, and initial impact of accreditation. Cross-sectional surveys of all ACGME-I-accredited institutions' leaders and CEs were conducted from June 2013 to June 2014. Eligible participants were identified through institution Web sites and GME offices. Combinations of Web- and paper-based surveys were employed. Completed surveys were received from 24 (70.6%) of 34 institutional leaders and 274 (76.3%) of 359 CEs, representing 3 countries, 8 academic medical centers, 2 affiliated teaching hospitals, and 47 residency programs. Leaders and CEs felt prepared in the domains of knowledge and implementation of the competencies. Top challenges were excessive "demands on faculty time" and "bureaucratic procedures." The majority of both groups perceived a positive impact of accreditation on all learner, faculty, institution, and patient outcomes; most perceived no impact on patient satisfaction. Overall, 79.2% of leaders and 75.8% of CEs agreed or strongly agreed that seeking ACGME-I accreditation was worthwhile. This study indicates that despite the challenges identified, initial perceptions of the impact of ACGME-I accreditation are positive. Findings from this study may be useful to institutions and countries considering similar GME reform, though long-term outcome data are needed.
WE-AB-206-02: ACR Ultrasound Accreditation: Requirements and Pitfalls
DOE Office of Scientific and Technical Information (OSTI.GOV)
Walter, J.
The involvement of medical physicists in diagnostic ultrasound imaging service is increasing due to QC and accreditation requirements. The goal of this ultrasound hands-on workshop is to demonstrate quality control (QC) testing in diagnostic ultrasound and to provide updates in ACR ultrasound accreditation requirements. The first half of this workshop will include two presentations reviewing diagnostic ultrasound QA/QC and ACR ultrasound accreditation requirements. The second half of the workshop will include live demonstrations of basic QC tests. An array of ultrasound testing phantoms and ultrasound scanners will be available for attendees to learn diagnostic ultrasound QC in a hands-on environmentmore » with live demonstrations and on-site instructors. The targeted attendees are medical physicists in diagnostic imaging. Learning Objectives: Gain familiarity with common elements of a QA/QC program for diagnostic ultrasound imaging dentify QC tools available for testing diagnostic ultrasound systems and learn how to use these tools Learn ACR ultrasound accreditation requirements Jennifer Walter is an employee of American College of Radiology on Ultrasound Accreditation.« less
76 FR 78015 - Revised Analysis and Mapping Procedures for Non-Accredited Levees
Federal Register 2010, 2011, 2012, 2013, 2014
2011-12-15
...] Revised Analysis and Mapping Procedures for Non-Accredited Levees AGENCY: Federal Emergency Management... comments on the proposed solution for Revised Analysis and Mapping Procedures for Non-Accredited Levees. This document proposes a revised procedure for the analysis and mapping of non-accredited levees on...
ERIC Educational Resources Information Center
Rodriguez, Severo A.
2016-01-01
Paramedic program accreditation and individual performance on the national paramedic certification examination were analyzed in this study. In 2008, the National Registry of Emergency Medical Technicians mandated paramedic program accreditation by January 1, 2013. Contemporary literature has not addressed the impact of program accreditation on…
Evaluation of a single-scan protocol for radiochromic film dosimetry.
Shimohigashi, Yoshinobu; Araki, Fujio; Maruyama, Masato; Nakaguchi, Yuji; Kuwahara, Satoshi; Nagasue, Nozomu; Kai, Yudai
2015-03-08
The purpose of this study was to evaluate a single-scan protocol using Gafchromic EBT3 film (EBT3) by comparing it with the commonly used 24-hr measurement protocol for radiochromic film dosimetry. Radiochromic film is generally scanned 24 hr after film exposure (24-hr protocol). The single-scan protocol enables measurement results within a short time using only the verification film, one calibration film, and unirradiated film. The single-scan protocol was scanned 30 min after film irradiation. The EBT3 calibration curves were obtained with the multichannel film dosimetry method. The dose verifications for each protocol were performed with the step pattern, pyramid pattern, and clinical treatment plans for intensity-modulated radiation therapy (IMRT). The absolute dose distributions for each protocol were compared with those calculated by the treatment planning system (TPS) using gamma evaluation at 3% and 3 mm. The dose distribution for the single-scan protocol was within 2% of the 24-hr protocol dose distribution. For the step pattern, the absolute dose discrepancies between the TPS for the single-scan and 24-hr protocols were 2.0 ± 1.8 cGy and 1.4 ± 1.2 cGy at the dose plateau, respectively. The pass rates were 96.0% for the single-scan protocol and 95.9% for the 24-hr protocol. Similarly, the dose discrepancies for the pyramid pattern were 3.6 ± 3.5cGy and 2.9 ± 3.3 cGy, respectively, while the pass rates for the pyramid pattern were 95.3% and 96.4%, respectively. The average pass rates for the four IMRT plans were 96.7% ± 1.8% for the single-scan protocol and 97.3% ± 1.4% for the 24-hr protocol. Thus, the single-scan protocol measurement is useful for dose verification of IMRT, based on its accuracy and efficiency.
42 CFR 424.58 - Accreditation.
Code of Federal Regulations, 2010 CFR
2010-10-01
... enforcing the DMEPOS quality standards for suppliers of DMEPOS and other items or services. Section 1847(b... disparity, there are widespread or systemic problems in an organization's accreditation process such that...
AACSB Accreditation and Possible Unintended Consequences: A Deming View
ERIC Educational Resources Information Center
Stepanovich, Paul; Mueller, James; Benson, Dan
2014-01-01
The AACSB accreditation process reflects basic quality principles, providing standards and a process for feedback for continuous improvement. However, implementation can lead to unintended negative consequences. The literature shows that while institutionalism and critical theory have been used as a theoretical base for evaluating accreditation,…
7 CFR 353.8 - Accreditation of non-government facilities.
Code of Federal Regulations, 2012 CFR
2012-01-01
... 7 Agriculture 5 2012-01-01 2012-01-01 false Accreditation of non-government facilities. 353.8 Section 353.8 Agriculture Regulations of the Department of Agriculture (Continued) ANIMAL AND PLANT HEALTH INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE EXPORT CERTIFICATION § 353.8 Accreditation of non-government...
9 CFR 77.13 - Accreditation preparatory States or zones.
Code of Federal Regulations, 2010 CFR
2010-01-01
... TUBERCULOSIS Cattle and Bison § 77.13 Accreditation preparatory States or zones. (a) The following are... the “Uniform Methods and Rules—Bovine Tuberculosis Eradication” (January 22, 1999 edition), which is... tuberculosis is diagnosed within an accreditation preparatory State or zone in an animal not specifically...
NADE Accreditation: The Right Decision for the Current Time
ERIC Educational Resources Information Center
NADE Digest, 2018
2018-01-01
The National Association for Developmental Education (NADE) Accreditation process is more relevant and important than ever to the discussion of students' success and completion of meaningful credentials. In the current politically-charged climate, NADE Accreditation helps programs demonstrate not only to themselves and their administrations, but…
9 CFR 77.13 - Accreditation preparatory States or zones.
Code of Federal Regulations, 2014 CFR
2014-01-01
... TUBERCULOSIS Cattle and Bison § 77.13 Accreditation preparatory States or zones. (a) The following are... the “Uniform Methods and Rules—Bovine Tuberculosis Eradication” (January 22, 1999 edition), which is... tuberculosis is diagnosed within an accreditation preparatory State or zone in an animal not specifically...
9 CFR 77.13 - Accreditation preparatory States or zones.
Code of Federal Regulations, 2012 CFR
2012-01-01
... TUBERCULOSIS Cattle and Bison § 77.13 Accreditation preparatory States or zones. (a) The following are... the “Uniform Methods and Rules—Bovine Tuberculosis Eradication” (January 22, 1999 edition), which is... tuberculosis is diagnosed within an accreditation preparatory State or zone in an animal not specifically...
9 CFR 77.13 - Accreditation preparatory States or zones.
Code of Federal Regulations, 2011 CFR
2011-01-01
... TUBERCULOSIS Cattle and Bison § 77.13 Accreditation preparatory States or zones. (a) The following are... the “Uniform Methods and Rules—Bovine Tuberculosis Eradication” (January 22, 1999 edition), which is... tuberculosis is diagnosed within an accreditation preparatory State or zone in an animal not specifically...
9 CFR 77.35 - Interstate movement from accredited herds.
Code of Federal Regulations, 2014 CFR
2014-01-01
... TUBERCULOSIS Captive Cervids § 77.35 Interstate movement from accredited herds. (a) Qualifications. To be... § 77.33(f) must have tested negative to at least two consecutive official tuberculosis tests, conducted... accredited herd may be moved interstate without further tuberculosis testing only if it is officially...
9 CFR 77.13 - Accreditation preparatory States or zones.
Code of Federal Regulations, 2013 CFR
2013-01-01
... TUBERCULOSIS Cattle and Bison § 77.13 Accreditation preparatory States or zones. (a) The following are... the “Uniform Methods and Rules—Bovine Tuberculosis Eradication” (January 22, 1999 edition), which is... tuberculosis is diagnosed within an accreditation preparatory State or zone in an animal not specifically...
75 FR 57658 - National Veterinary Accreditation Program; Correcting Amendment
Federal Register 2010, 2011, 2012, 2013, 2014
2010-09-22
... [Docket No. APHIS-2006-0093] RIN 0579-AC04 National Veterinary Accreditation Program; Correcting Amendment..., Docket No. APHIS-2006-0093), and effective on February 1, 2010, we amended the National Veterinary... Veterinary Accreditation Program, VS, APHIS, 4700 River Road Unit 200, Riverdale, MD 20737; (301) 851-3401...
Advantages and Disadvantages of Health Care Accreditation Models
Tabrizi, Jafar S.; Gharibi, Farid; Wilson, Andrew J.
2011-01-01
Background: This systematic review seeks to define the general advantages and disadvantages of accreditation programs to assist in choosing the most appropriate approach. Method: Systematic search of SID, Ovid Medline & PubMed databases was conducted by the keywords of accreditation, hospital, medical practice, clinic, accreditation models, health care and Persian meanings. From 2379 initial articles, 83 articles met the full inclusion criteria. From initial analysis, 23 attributes were identified which appeared to define advantages and disadvantages of different accreditation approaches and the available systems were compared on these. Results: Six systems were identified in the international literature including the JCAHO from USA, the Canadian program of CCHSA, and the accreditation programs of UK, Australia, New Zealand and France. The main distinguishing attributes among them were: quality improvement, patient and staff safety, improving health services integration, public’s confidence, effectiveness and efficiency of health services, innovation, influence global standards, information management, breadth of activity, history, effective relationship with stakeholders, agreement with AGIL attributes and independence from government. Conclusion: Based on 23 attributes of comprehensive accreditation systems we have defined from a systematic review, the JCAHO accreditation program of USA and then CCHSA of Canada offered the most comprehensive systems with the least disadvantages. Other programs such as the ACHS of Australia, ANAES of France, QHNZ of New Zealand and UK accreditation programs were fairly comparable according to these criteria. However the decision for any country or health system should be based on an assessment weighing up their specific objectives and needs. PMID:24688896