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Sample records for 3-mv ams facility

  1. He stripping for AMS of 236U and other actinides using a 3 MV tandem accelerator

    NASA Astrophysics Data System (ADS)

    Winkler, Stephan R.; Steier, Peter; Buchriegler, Josef; Lachner, Johannes; Pitters, Johanna; Priller, Alfred; Golser, Robin

    2015-10-01

    Interest in the long-lived radioisotope 236U (t1/2 = 23.4 million years) has significantly increased recently, due to the emergence of environmental and earth science applications. Presently, only a few (AMS) accelerator mass spectrometry instruments are suited for this measurement. One major limitation is the relatively low total detection efficiency (on the order of 10-4), which is partly caused by a low stripping yield of the positive ion charge state selected after the tandem accelerator. It has been shown that high yield can be achieved using helium as stripper gas for uranium ion energies below 0.35 MeV. Here we investigate the potential of He stripping of U at the 3-MV tandem accelerator VERA. Phenomenological charge state distributions for U and Th are presented for terminal voltages from 1.0 to 1.7 MV. These terminal voltages provide better background rejection than possible below 1 MeV, and are suited to the widely used 1-3 MV workhorses of many accelerator mass spectrometry laboratories. The methods can be applied to other actinides also.

  2. A new ion beam facility based on a 3 MV Tandetron™ at IFIN-HH, Romania

    NASA Astrophysics Data System (ADS)

    Burducea, I.; Straticiuc, M.; Ghiță, D. G.; Moșu, D. V.; Călinescu, C. I.; Podaru, N. C.; Mous, D. J. W.; Ursu, I.; Zamfir, N. V.

    2015-09-01

    A 3 MV Tandetron™ accelerator system has been installed and commissioned at the "Horia Hulubei" National Institute for Physics and Nuclear Engineering - IFIN-HH, Măgurele, Romania. The main purpose of this machine is to strengthen applied nuclear physics research ongoing in our institute for more than four decades. The accelerator system was developed by High Voltage Engineering Europa B.V. (HVE) and comprises three high energy beam lines. The first beam line is dedicated to ion beam analysis (IBA) techniques: Rutherford Backscattering Spectrometry - RBS, Nuclear Reaction Analysis - NRA, Particle Induced X-ray and γ-ray Emission - PIXE and PIGE and micro-beam experiments - μ-PIXE. The second beam line is dedicated to high energy ion implantation experiments and the third beam line was designed mainly for nuclear cross-sections measurements used in nuclear astrophysics. A unique feature, the first time in operation at an accelerator facility is the Na charge exchange canal (CEC), which is used to obtain high intensity beams of He- of at least 3 μA. The results of the acceptance tests demonstrate the huge potential of this new facility in various fields, from IBA to radiation hardness studies and from medical or environmental applications to astrophysics. The main features of the accelerator are presented in this paper.

  3. The LLNL AMS facility

    SciTech Connect

    Roberts, M.L.; Bench, G.S.; Brown, T.A.

    1996-05-01

    The AMS facility at Lawrence Livermore National Laboratory (LLNL) routinely measures the isotopes {sup 3}H, {sup 7}Be, {sup 10}Be, {sup 14}C, {sup 26}Al, {sup 36}Cl, {sup 41}Ca, {sup 59,63}Ni, and {sup 129}I. During the past two years, over 30,000 research samples have been measured. Of these samples, approximately 30% were for {sup 14}C bioscience tracer studies, 45% were {sup 14}C samples for archaeology and the geosciences, and the other isotopes constitute the remaining 25%. During the past two years at LLNL, a significant amount of work has gone into the development of the Projectile X-ray AMS (PXAMS) technique. PXAMS uses induced characteristic x-rays to discriminate against competing atomic isobars. PXAMS has been most fully developed for {sup 63}Ni but shows promise for the measurement of several other long lived isotopes. During the past year LLNL has also conducted an {sup 129}I interlaboratory comparison exercise. Recent hardware changes at the LLNL AMS facility include the installation and testing of a new thermal emission ion source, a new multianode gas ionization detector for general AMS use, re-alignment of the vacuum tank of the first of the two magnets that make up the high energy spectrometer, and a new cryo-vacuum system for the AMS ion source. In addition, they have begun design studies and carried out tests for a new high-resolution injector and a new beamline for heavy element AMS.

  4. Status report on the Erlangen AMS facility

    NASA Astrophysics Data System (ADS)

    Scharf, A.; Uhl, T.; Luppold, W.; Rottenbach, A.; Kritzler, K.; Ohneiser, A.; Kretschmer, W.

    2007-06-01

    The Erlangen AMS facility has been in routine operation since 1995. We present the current status of the facility and recent developments in our laboratory. The main focuses of our research are further improvement and automation of the sample preparation, the development of new sample preparation techniques like the dating of iron artefacts, and the development of an efficient automated gas feeding system for a gas ion source for the measurement of microgram samples for, e.g. environmental or future biomedical applications. The current background level and the long term stability of the facility are presented and discussed.

  5. The Naples University 3 MV tandem accelerator

    SciTech Connect

    Campajola, L.; Brondi, A.

    2013-07-18

    The 3 MV tandem accelerator of the Naples University is used for research activities and applications in many fields. At the beginning of operation (1977) the main utilization was in the field of nuclear physics. Later, the realization of new beam lines allowed the development of applied activities as radiocarbon dating, ion beam analysis, biophysics, ion implantation etc. At present, the availability of different ion sources and many improvements on the accelerator allow to run experiments in a wide range of subjects. An overview of the characteristics and major activities of the laboratory is presented.

  6. A new AMS facility in Mexico

    NASA Astrophysics Data System (ADS)

    Solís, C.; Chávez-Lomelí, E.; Ortiz, M. E.; Huerta, A.; Andrade, E.; Barrios, E.

    2014-07-01

    A new Accelerator Mass Spectrometry system has been installed at the Institute of Physics of the National Autonomous University of Mexico (UNAM). A sample preparation chemistry laboratory equipped with computer controlled graphitization equipment (AGEIII) has also been established. Together both facilities constitute the LEMA (Laboratorio de Espectrometría de Masas con Aceleradores) first of its kind in Mexico. High sensitivity characterization of the concentration in a sample of 14C as well as 10Be, 26Al, 129I and Pu are now possible. Since the demand for 14C dating is far more abundant, a data analysis program was developed in the cross-platform programming language Python in order to calculate radiocarbon age. Results from installation, acceptance tests and the first results of 14C analyses of reference materials prepared in our own facility are presented.

  7. Preparing and measuring ultra-small radiocarbon samples with the ARTEMIS AMS facility in Saclay, France

    NASA Astrophysics Data System (ADS)

    Delqué-Količ, E.; Comby-Zerbino, C.; Ferkane, S.; Moreau, C.; Dumoulin, J. P.; Caffy, I.; Souprayen, C.; Quilès, A.; Bavay, D.; Hain, S.; Setti, V.

    2013-01-01

    The ARTEMIS facility in Saclay France measures, on average, 4500 samples a year for French organizations working in an array of fields, including environmental sciences, archeology and hydrology. In response to an increasing demand for the isolation of specific soil compounds and organic water fractions, we were motivated to evaluate our ability to reduce microgram samples using our standard graphitization lines and to measure the graphite thus obtained with our 3MV NEC Pelletron AMS. Our reduction facility consists of two fully automated graphitization lines. Each line has 12 reduction reactors with a reduction volume of 18 ml for the first line and 12 ml for the second. Under routine conditions, we determined that we could reduce the samples down to 10 μg of carbon, even if the graphitization yield is consequently affected by the lower sample mass. Our results when testing different Fe/C ratios suggest that an amount of 1.5 mg of Fe powder was ideal (instead of lower amounts of catalyst) to prevent the sample from deteriorating too quickly under the Cs+ beam, and to facilitate pressing procedures. Several sets of microsamples produced from HOxI standard, international references and backgrounds were measured. When measuring 14C-free wood charcoal and HOxI samples we determined that our modern and dead blanks, due to the various preparation steps, were of 1.1 ± 0.8 and 0.2 ± 0.1 μg, respectively. The results presented here were obtained for IAEA-C1, 14C-free wood, IAEA-C6, IAEA-C2 and FIRI C.

  8. 25 CFR 247.8 - What am I responsible for if I use the facilities?

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 25 Indians 1 2014-04-01 2014-04-01 false What am I responsible for if I use the facilities? 247.8 Section 247.8 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR FISH AND WILDLIFE USE OF COLUMBIA RIVER TREATY FISHING ACCESS SITES § 247.8 What am I responsible for if I use the facilities?...

  9. 25 CFR 247.8 - What am I responsible for if I use the facilities?

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 25 Indians 1 2012-04-01 2011-04-01 true What am I responsible for if I use the facilities? 247.8 Section 247.8 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR FISH AND WILDLIFE USE OF COLUMBIA RIVER TREATY FISHING ACCESS SITES § 247.8 What am I responsible for if I use the facilities?...

  10. 25 CFR 247.8 - What am I responsible for if I use the facilities?

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false What am I responsible for if I use the facilities? 247.8 Section 247.8 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR FISH AND WILDLIFE USE OF COLUMBIA RIVER TREATY FISHING ACCESS SITES § 247.8 What am I responsible for if I use the facilities?...

  11. 25 CFR 247.8 - What am I responsible for if I use the facilities?

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 25 Indians 1 2011-04-01 2011-04-01 false What am I responsible for if I use the facilities? 247.8 Section 247.8 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR FISH AND WILDLIFE USE OF COLUMBIA RIVER TREATY FISHING ACCESS SITES § 247.8 What am I responsible for if I use the facilities?...

  12. The new 6 MV AMS-facility DREAMS at Dresden

    NASA Astrophysics Data System (ADS)

    Akhmadaliev, Shavkat; Heller, René; Hanf, Daniel; Rugel, Georg; Merchel, Silke

    2013-01-01

    A new 6 MV electrostatic tandem accelerator has been put into operation at Helmholtz-Zentrum Dresden-Rossendorf (HZDR). The system is equipped for accelerator mass spectrometry and opens a new research field at HZDR and the Helmholtz Association. It will be also used for ion beam analysis as well as for material modification via high-energy ion implantation. The research activity at the DREsden Accelerator Mass Spectrometry facility (DREAMS) based on a 6 MV Tandetron is primarily dedicated to the long-lived radioisotopes of 10Be, 26Al, 36Cl, 41Ca, and 129I. DREAMS background levels have been found to be at 4.5 × 10-16 for 10Be/9Be, 8 × 10-16 for 26Al/27Al, 3 × 10-15 for 36Cl/35Cl and 8 × 10-15 for 41Ca/40Ca, respectively. The observed background of 2 × 10-13 for 129I/127I originates from intrinsic 129I from AgI produced from commercial KI. The introduction of quality assurance approaches for AMS, such as the use of traceable calibration materials and taking part in interlaboratory comparisons, guarantees high accuracy data for future DREAMS users. During first experiments an energy calibration of the accelerator has been carried out using the nuclear reaction 1H(15N,γα)12C yielding an energy correction factor of 1.019.

  13. Status of the "new" AMS facility in Trondheim

    NASA Astrophysics Data System (ADS)

    Nadeau, Marie-Josée; Vaernes, Einar; Svarva, Helene Løvstrand; Larsen, Eiliv; Gulliksen, Steinar; Klein, Matthias; Mous, Dirk J. W.

    2015-10-01

    The Radiocarbon Laboratory of the Norwegian University of Science and Technology (NTNU) in Trondheim has a long history, dating back to the 1950s. Its relatively new AMS facility is based on a 1 MV Tandetron from High Voltage Engineering Europa B.V. that is equipped with a hybrid solid/gas SO-110 ion source, a low energy spectrometer supporting sequential injection, a high energy analysis system consisting of a magnet and an electrostatic deflector, allowing insertion of an absorber foil for isobar suppression, and a two dimensional gas ionisation detector (E and ΔE). The system is at present capable of measuring 10Be, 14C, and 26Al and can be easily modified to measure isotopes of higher masses. Acceptance tests results for 10Be1+, 14C2+, 26Al1+, and 26Al3+ are presented. The laboratory measures only 14C at present and the routine procedures are described. The system has demonstrated a very low background (70,000 14C years BP or 2·10-16 on Alfa Aesar 40795 graphite powder, -200 mesh, 99.9995%) for 14C when charge state 2+ is measured and the interference of Li ions in the detector is minimal. Some ion optical peculiarities of the system are also discussed.

  14. RICH - A new AMS facility at the Royal Institute for Cultural Heritage, Brussels, Belgium

    NASA Astrophysics Data System (ADS)

    Boudin, Mathieu; Van Strydonck, Mark; van den Brande, Tess; Synal, Hans-Arno; Wacker, Luckas

    2015-10-01

    Since 1989 the radiocarbon dating lab has their own graphitization system for 14C AMS dating but RICH (Royal Institute for Cultural Heritage) did not possess their own AMS and measurements were carried out in collaboration with other AMS facilities. In April 2013 the Micadas (Mini Carbon Dating System) AMS was installed at RICH in Brussels and after 1.5 year operation the high stability and performance of the Micadas can be demonstrated by repeated analyses of primary standard OXA II and secondary standards. Results of unknown samples measured on the RICH-Micadas and on other AMS systems are in good agreement.

  15. 25 CFR 247.9 - What other rules apply while I am using the facilities?

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 25 Indians 1 2011-04-01 2011-04-01 false What other rules apply while I am using the facilities? 247.9 Section 247.9 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR FISH AND WILDLIFE USE OF COLUMBIA RIVER TREATY FISHING ACCESS SITES § 247.9 What other rules apply while I am using...

  16. 25 CFR 247.9 - What other rules apply while I am using the facilities?

    Code of Federal Regulations, 2012 CFR

    2012-04-01

    ... 25 Indians 1 2012-04-01 2011-04-01 true What other rules apply while I am using the facilities? 247.9 Section 247.9 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR FISH AND WILDLIFE USE OF COLUMBIA RIVER TREATY FISHING ACCESS SITES § 247.9 What other rules apply while I am using...

  17. 25 CFR 247.9 - What other rules apply while I am using the facilities?

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... 25 Indians 1 2010-04-01 2010-04-01 false What other rules apply while I am using the facilities? 247.9 Section 247.9 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR FISH AND WILDLIFE USE OF COLUMBIA RIVER TREATY FISHING ACCESS SITES § 247.9 What other rules apply while I am using...

  18. 25 CFR 247.9 - What other rules apply while I am using the facilities?

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... 25 Indians 1 2014-04-01 2014-04-01 false What other rules apply while I am using the facilities? 247.9 Section 247.9 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR FISH AND WILDLIFE USE OF COLUMBIA RIVER TREATY FISHING ACCESS SITES § 247.9 What other rules apply while I am using...

  19. 25 CFR 247.9 - What other rules apply while I am using the facilities?

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 25 Indians 1 2013-04-01 2013-04-01 false What other rules apply while I am using the facilities? 247.9 Section 247.9 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR FISH AND WILDLIFE USE OF COLUMBIA RIVER TREATY FISHING ACCESS SITES § 247.9 What other rules apply while I am using the facilities? (a) You cannot construct,...

  20. 25 CFR 247.8 - What am I responsible for if I use the facilities?

    Code of Federal Regulations, 2013 CFR

    2013-04-01

    ... 25 Indians 1 2013-04-01 2013-04-01 false What am I responsible for if I use the facilities? 247.8 Section 247.8 Indians BUREAU OF INDIAN AFFAIRS, DEPARTMENT OF THE INTERIOR FISH AND WILDLIFE USE OF COLUMBIA RIVER TREATY FISHING ACCESS SITES § 247.8 What am I responsible for if I use the facilities? You are responsible for: (a) Campsites,...

  1. Preliminary AMS measurements of 10Be at the CENTA facility

    NASA Astrophysics Data System (ADS)

    Ješkovský, Miroslav; Steier, Peter; Priller, Alfred; Breier, Robert; Povinec, Pavel P.; Golser, Robin

    2015-10-01

    Very sensitive methods, presently mainly accelerator mass spectrometry (AMS) are necessary for analysis of cosmogenic 10Be in the environment. AMS is mainly limited by the stable isobar 10B, while the requirements for mass separation are the least stringent of all standard isotopes analyzed by AMS. We tested a possibility to measure 10Be using a small switching magnet as an analyzer of accelerated ions, and an ionization chamber with a silicon nitride foil stack used as a passive absorber. A detection limit of 10-12 for the 10Be/9Be isotopic ratio was obtained using this technique, which was mainly determined by scattering of 9Be+2 ions on residual gas inside the switching magnet.

  2. A new AMS facility at Inter University Accelerator Centre, New Delhi

    NASA Astrophysics Data System (ADS)

    Kumar, Pankaj; Chopra, S.; Pattanaik, J. K.; Ojha, S.; Gargari, S.; Joshi, R.; Kanjilal, D.

    2015-10-01

    Inter University Accelerator Centre (IUAC), a national facility of government of India, is having a 15UD Pelletron accelerator for multidisciplinary ion beam based research programs. Recently, a new accelerator mass spectrometry (AMS) facility has been developed after incorporating many changes in the existing 15UD Pelletron accelerator. A clean chemistry laboratory for 10Be and 26Al with all the modern facilities has also been developed for the chemical processing of samples. 10Be measurements on sediment samples, inter laboratory comparison results and 26Al measurements on standard samples are presented in this paper. In addition to the 10Be and 26Al AMS facilities, a new 14C AMS facility based on a dedicated 500 kV tandem ion accelerator with two cesium sputter ion sources, is also being setup at IUAC.

  3. The 3MV Hypervelocity Dust Accelerator at the Colorado Center for Lunar Dust and Atmospheric Studies

    NASA Astrophysics Data System (ADS)

    Shu, A.; Collette, A.; Drake, K.; Horanyi, M.; Kempf, S.; Munsat, T.; Northway, P.; Robertson, S.; Sternovsky, Z.; Thomas, E.; Gruen, E.; Srama, R.

    2011-11-01

    Micrometeorite impacts and dusty plasma phenomena can be found in a wide variety of subjects. In many extraplanetary systems, such as in deep space and on airless bodies such as asteroids or the moon, dusty plasmas play a large role in the basic scientific evolution of the environment. Dust can also be captured and studied in dust astronomy in order to better understand the evolution of our universe, similarly to how photons are used in traditional astronomy. At the Colorado Center for Lunar Dust and Atmospheric Studies, we have developed a 3MV hypervelocity dust accelerator in order to study these and other applications of dust and dusty plasmas. This facility is capable of accelerating micron sized dust particles up to 10's of km/s. In addition to this we have several vacuum chambers used for dusty plasma experiments. The large Lunar Environment Impact Laboratory (LEIL) test chamber will be used to study dust levitation, space weathering, and lunar exosphere evolution. A smaller ultrahigh vacuum chamber will be used to detect neutral species in micrometeorite impact ejecta and detect and analyze impact flashes. In addition to this work, graphite tokamak wall tile material will be placed into the beam path to determine damage characteristics from dust in fusion systems.

  4. 21 CFR 803.30 - If I am a user facility, what reporting requirements apply to me?

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false If I am a user facility, what reporting... HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES MEDICAL DEVICE REPORTING User Facility Reporting Requirements § 803.30 If I am a user facility, what reporting requirements apply to me? (a) You must...

  5. 3 MV hypervelocity dust accelerator at the Colorado Center for Lunar Dust and Atmospheric Studies.

    PubMed

    Shu, Anthony; Collette, Andrew; Drake, Keith; Grün, Eberhard; Horányi, Mihály; Kempf, Sascha; Mocker, Anna; Munsat, Tobin; Northway, Paige; Srama, Ralf; Sternovsky, Zoltán; Thomas, Evan

    2012-07-01

    A hypervelocity dust accelerator for studying micrometeorite impacts has been constructed at the Colorado Center for Lunar Dust and Atmospheric Studies (CCLDAS) at the University of Colorado. Based on the Max-Planck-Institüt für Kernphysik (MPI-K) accelerator, this accelerator is capable of emitting single particles of a specific mass and velocity selected by the user. The accelerator consists of a 3 MV Pelletron generator with a dust source, four image charge pickup detectors, and two interchangeable target chambers: a large high-vacuum test bed and an ultra-high vacuum impact study chamber. The large test bed is a 1.2 m diameter, 1.5 m long cylindrical vacuum chamber capable of pressures as low as 10(-7) torr while the ultra-high vacuum chamber is a 0.75 m diameter, 1.1 m long chamber capable of pressures as low as 10(-10) torr. Using iron dust of up to 2 microns in diameter, final velocities have been measured up to 52 km/s. The spread of the dust particles and the effect of electrostatic focusing have been measured using a long exposure CCD and a quartz target. Furthermore, a new technique of particle selection is being developed using real time digital filtering techniques. Signals are digitized and then cross-correlated with a shaped filter, resulting in a suppressed noise floor. Improvements over the MPI-K design, which include a higher operating voltage and digital filtering for detection, increase the available parameter space of dust emitted by the accelerator. The CCLDAS dust facility is a user facility open to the scientific community to assist with instrument calibrations and experiments. PMID:22852725

  6. 3 MV hypervelocity dust accelerator at the Colorado Center for Lunar Dust and Atmospheric Studies

    SciTech Connect

    Shu, Anthony; Horanyi, Mihaly; Kempf, Sascha; Thomas, Evan; Collette, Andrew; Drake, Keith; Northway, Paige; Gruen, Eberhard; Mocker, Anna; Munsat, Tobin; Srama, Ralf; and others

    2012-07-15

    A hypervelocity dust accelerator for studying micrometeorite impacts has been constructed at the Colorado Center for Lunar Dust and Atmospheric Studies (CCLDAS) at the University of Colorado. Based on the Max-Planck-Instituet fuer Kernphysik (MPI-K) accelerator, this accelerator is capable of emitting single particles of a specific mass and velocity selected by the user. The accelerator consists of a 3 MV Pelletron generator with a dust source, four image charge pickup detectors, and two interchangeable target chambers: a large high-vacuum test bed and an ultra-high vacuum impact study chamber. The large test bed is a 1.2 m diameter, 1.5 m long cylindrical vacuum chamber capable of pressures as low as 10{sup -7} torr while the ultra-high vacuum chamber is a 0.75 m diameter, 1.1 m long chamber capable of pressures as low as 10{sup -10} torr. Using iron dust of up to 2 microns in diameter, final velocities have been measured up to 52 km/s. The spread of the dust particles and the effect of electrostatic focusing have been measured using a long exposure CCD and a quartz target. Furthermore, a new technique of particle selection is being developed using real time digital filtering techniques. Signals are digitized and then cross-correlated with a shaped filter, resulting in a suppressed noise floor. Improvements over the MPI-K design, which include a higher operating voltage and digital filtering for detection, increase the available parameter space of dust emitted by the accelerator. The CCLDAS dust facility is a user facility open to the scientific community to assist with instrument calibrations and experiments.

  7. 14. NAVFAC Drawing 1,174,311(463AM3)(1970), 'Alterations for Laboratory FacilityMechanical' Mare ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    14. NAVFAC Drawing 1,174,311(463A-M-3)(1970), 'Alterations for Laboratory Facility-Mechanical' - Mare Island Naval Shipyard, Battery Test Office & Storage Facility, California Avenue & E Street, Vallejo, Solano County, CA

  8. Upgrading of the AMS facility at the Koffler 14UD Pelletron accelerator

    NASA Astrophysics Data System (ADS)

    Berkovits, D.; Paul, M.; Ben-Dov, Y.; Bordeanu, C.; Ghelberg, S.; Heber, O.; Hass, M.; Shahar, Y.; Verri, G.

    2004-08-01

    The AMS facility based on a 14UD Pelletron tandem accelerator has been upgraded in recent years to support an active and diversified research program. A new dedicated AMS ion source beam line merging at 45° with the existing injection line through a 45° electrostatic deflector is in operation. The multi-sample high-intensity Cs sputter ion source stands on a separate 120 kV platform and is remote-controlled through a hybrid infrared-fiber-optics link operated either manually or by the accelerator-control computer, ensuring safe and reliable operation. Independent current preamplifiers are used in Faraday cup current readings down to the pA range. The accelerator computer-control system was upgraded to LabView 6.1, allowing a PC server to control and read out all hardware components while one or more remote PC clients run the AMS software. Ad hoc sequences of commands, written in a script macro language, are run from a client computer to perform an automated AMS measurement. The present capabilities of the facility in terms of detected radionuclides and their sensitivities are listed.

  9. The compact AMS facility at Guangzhou Institute of Geochemistry, Chinese Academy of Sciences

    NASA Astrophysics Data System (ADS)

    Zhu, Sanyuan; Ding, Ping; Wang, Ning; Shen, Chengde; Jia, Guodong; Zhang, Gan

    2015-10-01

    A compact 14C AMS facility manufactured by the National Electrostatics Corporation (NEC) has been installed at Guangzhou Institute of Geochemistry, Chinese Academy of Sciences (GIGCAS). The system is based on a Model 1.5SDH-1 Pelletron accelerator with a maximum terminal volt 0.6 MV. This paper reports the performance and the operation of this machine in the first several months after installation.

  10. The André E. Lalonde AMS Laboratory - The new accelerator mass spectrometry facility at the University of Ottawa

    NASA Astrophysics Data System (ADS)

    Kieser, W. E.; Zhao, X.-L.; Clark, I. D.; Cornett, R. J.; Litherland, A. E.; Klein, M.; Mous, D. J. W.; Alary, J.-F.

    2015-10-01

    The University of Ottawa, Canada, has installed a multi-element, 3 MV tandem AMS system as the cornerstone of their new Advanced Research Complex and the principal analytical instrument of the André E. Lalonde Accelerator Mass Spectrometry Laboratory. Manufactured by High Voltage Engineering Europa B.V., the Netherlands, it is equipped with a 200 sample ion source, a high resolution, 120° injection magnet, a 90° high energy analysis magnet (mass-energy product 350 MeV-AMU), a 65°, 1.7 m radius electric analyzer and a 2 channel gas ionization detector. It is designed to analyze isotopes ranging from tritium to the actinides and to accommodate the use of fluoride target materials. This system is being extended with a second injection line, consisting of selected components from the IsoTrace Laboratory, University of Toronto. This line will contain a pre-commercial version of the Isobar Separator for Anions, manufactured by Isobarex Corp., Bolton, Ontario, Canada. This instrument uses selective ion-gas reactions in a radio-frequency quadrupole cell to attenuate both atomic and molecular isobars. This paper discusses the specifications of the new AMS equipment, reports on the acceptance test results for 10Be, 14C, 26Al and 127I and presents typical spectra for 10Be and actinide analyses.

  11. A new AMS facility based on a Cockcroft-Walton type 1 MV tandetron at IFIN-HH Magurele, Romania

    NASA Astrophysics Data System (ADS)

    Stan-Sion, C.; Enachescu, M.; Ghita, D. G.; Calinescu, C. I.; Petre, A.; Mosu, D. V.; Klein, M.

    2014-01-01

    A 1 MV AMS machine was recently installed in the National Institute for Physics and Nuclear Engineering IFIN-HH, Bucharest Romania. It is the second AMS facility at IFIN-HH having the goal not only to continue but mainly to enlarge the research area of this highly sensitive analyzing method. The multi-element AMS was developed by HVEE to measure 14C, 10Be, and 26Al, and 129I. The results of an acceptance test are presented and demonstrate that this machine is capable of routine 14C age dating and of measurements of other radioisotopes in terms of accuracy and precision as well as a low background level.

  12. Status report of the 1 MV AMS facility at the Centro Nacional de Aceleradores

    NASA Astrophysics Data System (ADS)

    Calvo, Elena Chamizo; Santos, Francisco Javier; López-Gutiérrez, José María; Padilla, Santiago; García-León, Manuel; Heinemeier, Jan; Schnabel, Christoph; Scognamiglio, Grazia

    2015-10-01

    SARA (Spanish Accelerator for Radionuclides Analysis) was the first multielemental AMS facility installed in Spain in 2005. Since then it has been dedicated to the routine analysis of several radionuclides, such as 10Be, 14C, 26Al, 129I and Pu isotopes. Tests have been carried out with other isotopes, such as 41Ca, 236U and 237Np, and several changes have been made to the original facility to improve performance. First, an upgraded version of the ion source SO-110 has allowed us more stable measurement conditions for volatile elements (i.e. iodine), and a better general performance. Besides, changes in the target geometry have improved the ionization efficiency and long-term stability of the source output. Moreover, different software upgrades have been introduced to meet our routine operational needs. Finally, changing the movable Faraday-cup associated electronics now allows the measurement of smaller currents (in the range of pA), which has been key for the study of 236U/238U atomic ratio in environmental samples. Apart from these modifications it has to be noted that routine radiocarbon measurements have been moved to a Micadas system (200 kV) installed at CNA in 2012. In this paper we will illustrate the evolution of the facility up to now, and our future prospects will be introduced.

  13. Recent developments of the 1 MV AMS facility at the Centro Nacional de Aceleradores

    NASA Astrophysics Data System (ADS)

    Scognamiglio, G.; Chamizo, E.; López-Gutiérrez, J. M.; Müller, A. M.; Padilla, S.; Santos, F. J.; López-Lora, M.; Vivo-Vilches, C.; García-León, M.

    2016-05-01

    The Centro Nacional de Aceleradores (CNA) hosts a 1 MV accelerator mass spectrometry (AMS) apparatus since September 2005. In order to improve its overall performance, several updates have been made on the existing facility during the last 10 years of operation. In this paper, two modifications conducted in 2015 will be described. To increase the transmission of the ions through the accelerator, the stripping gas on the 1 MV CNA machine was changed from Ar to He. The measured maximum transmission for almost every isotope results to be higher, especially for heavy masses: for instance, in the case of uranium in the 3+ charge state, the transmission increased from 11% with Ar gas to about 38% with He gas. The second advance consisted of the substitution of the existing gas ionization chamber with a new one provided by ETH Zurich. The ETH detector features with its miniaturized design and is optimized for low energy AMS (i.e. very low electronic noise and efficient charge collection). As the electronic noise is the most important contribution to the resolution for light ions, the total energy resolution has been reduced by 15% in the case of 10Be, allowing a better discrimination against its isobar, 10B. For the heaviest radionuclides where the quality of the spectra is determined by the charge carrier production in the gas, the resolution for 2.7 MeV uranium ions was improved by 30%, probably due to a more efficient charge collection.

  14. 15. NAVFAC Drawing 1,174,312(463AM4)(1970), 'Alterations for Laboratory FacilityHood VentilationMechanical' ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    15. NAVFAC Drawing 1,174,312(463A-M-4)(1970), 'Alterations for Laboratory Facility-Hood Ventilation-Mechanical' - Mare Island Naval Shipyard, Battery Test Office & Storage Facility, California Avenue & E Street, Vallejo, Solano County, CA

  15. Design And Performance Of A 3 MV Tandetron Accelerator System For High-Current Applications

    SciTech Connect

    Podaru, Nicolae C.; Gottdang, A.; Mous, D. J. W.

    2011-06-01

    The Saha Institute of Nuclear Physics, Kolkata, India will commission in 2011 a 3 MV Tandetron accelerator system. Hi-flux neutron production, nuclear reaction cross-section measurements and time of flight experiments are among the research activities to be performed with this system. Features such as high beam currents, high beam energy stability and low beam energy spread are necessary when conducting these types of experiments. At the same time, the beam energy must be known with high accuracy. This article reports the early results obtained during the in-house testing of the system. H beam currents of 500 {mu}A have been transported through the system. The so-called ''Q-snout'' electrode lens ensures high particle transmission ({approx}70%) through the accelerator even at 7% of the rated terminal voltage (TV). At present, the negative H ion beam current output of the SO120 multicusp ion source, rated at only 2 mA, combined with the Tandetron accelerators (with terminal voltage ranging from 1 to 6 MV) provides H beam powers of up to 10 kW.

  16. A new AMS facility at the JNC Tono Geoscience Center, Japan

    NASA Astrophysics Data System (ADS)

    Xu, Sheng; Ito, Shigeru; Iwatsuki, Teruki; Abe, Masahito; Watanabe, Masato

    2000-10-01

    A new AMS facility (NEC 15SDH-2) based on a 5 MV tandem accelerator has been installed at the Japan Nuclear Cycle Development Institute (JNC) Tono Geoscience Center in March 1997. It has two cesium sputter negative ion sources (for solid and gas samples) which are connected to a fast sequential injection beam line. A number of performance tests have been done on the MC-SNICS solid source for radiocarbon. Precision measurements with modern samples have shown that a precision below 0.5% is feasible on a routine basis. The 14C background of the machine and the chemistry blank are 0.04 and 0.10 pMC respectively, indicating a 14C dating limit of 56,000 yr BP. The normalized JNC 14C values for IAEA standard materials (C-2 to C-8) agree well with the nominal values. Since October 1998, the MC-SNICS solid source is used for routine radiocarbon dating. Preliminary results of performance tests of the MGF-SNICS gas source are reported, too.

  17. Further improvement for 10Be measurement on an upgraded compact AMS radiocarbon facility

    NASA Astrophysics Data System (ADS)

    Fu, Dongpo; Ding, Xingfang; Liu, Kexin; Müller, Arnold Milenko; Suter, Martin; Christl, Marcus; Zhou, Liping; Synal, Hans-Arno

    2015-10-01

    The Peking University 500 kV NEC compact AMS radiocarbon facility (PKU-CAMS) has been modified in order to have additionally the possibility to measure 10Be. In the preliminary experiment a silicon nitride foil was mounted in front of the electrostatic deflector as passive boron degrader, and the original Si detector for radiocarbon detection was replaced by an ETHZ-designed high-resolution ΔE - Eres gas ionization chamber (GIC) for 10Be identification. This simple arrangement has yielded an overall 10Be transmission of 2.2% and a 10Be/9Be background level of 3.5 × 10-14. To further reduce the background and increase the transmission by re-focusing the 10Be ions, an additional 90° bending magnet with 350 mm radius was installed after the electrostatic deflector. The silicon detector was shifted slightly relative to its position of original NEC system setup in opposite direction of beam and can be lifted up manually without breaking vacuum when 10Be measurements are carried out. In this way the system can be easily and fast set up for 10Be without affecting any parameters for radiocarbon measurement. The gas detector for 10Be was mounted at the end of the beam line after the additional magnet. The lay-out of the upgraded spectrometer is very compact and does not require more space than the original instrument. Using this compact setup, the overall transmission for 10Be was doubled to 5-6% and the 10Be/9Be background level was reduced to radios as low as 2.4 × 10-15.

  18. LLNL/UC (Lawrence Livermore National Laboratory)/(University of California) AMS (accelerator mass spectrometry) facility and research program

    SciTech Connect

    Davis, J.C.; Proctor, I.D.; Southon, J.R.; Caffee, M.W.; Heikkinen, D.W.; Roberts, M.L.; Moore, T.L.; Turteltaub, K.W.; Nelson, D.E.; Loyd, D.H.; Vogel, J.S.

    1990-04-18

    The Lawrence Livermore National Laboratory (LLNL) and the University of California (UC) now have in operation a large AMS spectrometer built as part of a new multiuser laboratory centered on an FN tandem. AMS measurements are expected to use half of the beam time of the accelerator. LLNL use of AMS is in research on consequences of energy usage. Examples include global warming, geophysical site characterization, radiation biology and dosimetry, and study of mutagenic and carcinogenic processes. UC research activities are in clinical applications, archaeology and anthropology, oceanography, and geophysical and geochemical research. Access is also possible for researchers outside the UC system. The technological focus of the laboratory is on achieving high rates of sample through-put, unattended operation, and advances in sample preparation methods. Because of the expected growth in the research programs and the other obligations of the present accelerator, we are designing a follow-on dedicated facility for only AMS and microprobe analysis that will contain at least two accelerators with multiple spectrometers. 10 refs., 1 fig.

  19. Development of a fraction collector for coupling gas chromatography with an AMS facility

    NASA Astrophysics Data System (ADS)

    Rottenbach, Andreas; Uhl, T.; Hain, A.; Scharf, A.; Kritzler, K.; Kretschmer, W.

    2008-05-01

    It has been shown that microscale 14C measurements are possible by using a gas handling system and a gas ion source [T. Uhl, W. Kretschmer, W. Luppold, A. Scharf, AMS measurements from microgram to milligram, Nucl. Instr. and Meth. (2005) 474 (240th ed.), T. Uhl, W. Luppold, A. Rottenbach, A. Scharf, K. Kritzler, W. Kretschmer, Development of an automatic gas handling system for microscale AMS (14C) measurements, Nucl. Instr. and Meth. (2007) 303 (259th ed.)]. In Erlangen a gas handling system was especially developed for environmental and biomedical investigations. For the separation of the compound of interest a standard gas chromatograph (GC) is used. To minimize the sample contamination and sample loss we have designed a fraction collector that connects a GC and an elemental analyzer (EA) directly. The selected compound is combusted in the EA and the resulting CO2 is then transferred into the gas handling system for AMS measurements. From the beginning of GC preparation up to the AMS measurement the sample is in a closed line. All operations are fully automated, so no manual operations are necessary. This guarantees high cleanness and maximum sample yield. Preliminary measurements are done using modern and old ethyl alcohol (from fermentation and of petrochemical origin, respectively). The results are consistent with their expected values although cross contamination and background signal increased as the sample mass was decreased.

  20. Some results from the Arizona tams facility: AMS ages of athletic, artistic, and animal artifacts

    NASA Astrophysics Data System (ADS)

    Donahue, D. J.; Jull, A. J. T.; Linick, T. W.; Hatheway, A.; Toolin, L. J.; Gore, B.; Damon, P. E.

    1987-11-01

    In this paper we will describe the operation of the University of Arizona tandem accelerator mass spectrometer facility, present some results that demonstrate the precision with which radiocarbon measurements can be made and describe several experiments that have been completed on a variety of artifacts.

  1. 21 CFR 803.32 - If I am a user facility, what information must I submit in my individual adverse event reports?

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... 21 Food and Drugs 8 2011-04-01 2011-04-01 false If I am a user facility, what information must I submit in my individual adverse event reports? 803.32 Section 803.32 Food and Drugs FOOD AND DRUG... laboratory data; and (7) Description of other relevant history, including preexisting medical conditions....

  2. The first four years of the AMS-facility DREAMS: Status and developments for more accurate radionuclide data

    NASA Astrophysics Data System (ADS)

    Rugel, Georg; Pavetich, Stefan; Akhmadaliev, Shavkat; Enamorado Baez, Santiago Miguel; Scharf, Andreas; Ziegenrücker, René; Merchel, Silke

    2016-03-01

    DREAMS, the DREsden AMS-facility, is performing routine accelerator mass spectrometry of 10Be, 26Al, 36Cl, 41Ca, and 129I for a wide range of applications. All DREAMS-data is normalised directly to primary standards or traceable to those via cross-calibration of secondary standards. Recent technical developments such as a low-memory ion source for 36Cl and 129I and sophisticated tuning strategies for 129I led to improved-accuracy data. Tests of ion source output have been performed with different metal binders, sample-to-binder mixing ratios, and compaction pressures in order to find optimal parameters. The highest and most stable outputs have been obtained for 10Be, 26Al, and 41Ca for the following binders and mixing ratios (by weight): BeO:Nb, 1:4; Al2O3:Ag, 1:1; CaF2:Ag, 1:4. Higher beam currents generally result in reduced statistical uncertainty. Cross-contamination and long-term memory seem to be underestimated problems asking for further tests and improvements such as the development of low-level in-house-standards.

  3. Production of {sup 17}F, {sup 15}O and other radioisotopes for PET using a 3 MV electrostatic tandem accelerator

    SciTech Connect

    Roberts, A. D.; Davidson, R. J.; Nickles, R. J.

    1999-06-10

    Target systems for the production of positron emitting radioisotopes used for medical research with positron emission tomography (PET) are under development for a 3 MV electrostatic tandem accelerator (NEC 9SDH-2). This machine is intended primarily for the continuous production of short lived tracers labeled with {sup 15}O (t{sub 1/2}=122 s) or {sup 17}F (t{sub 1/2}=65 s) for determining regional cerebral blood flow in humans. Simple gas, liquid, and solid target systems are presented for the production of [{sup 15}O]H{sub 2}O (yield at saturation 13 mCi/{mu}A), [{sup 17}F]F{sub 2} (22 mCi/{mu}A), [{sup 17}F] fluoride (aq.) (12 mCi/{mu}A), [{sup 18}F]fluoride (aq.) (21 mCi/{mu}A), [{sup 13}N] in graphite (25 mCi/{mu}A), and [{sup 11}C]CO{sub 2} (2.3 mCi/{mu}A). Current limitations on single window targets for each production are discussed.

  4. 21 CFR 803.30 - If I am a user facility, what reporting requirements apply to me?

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES MEDICAL DEVICE REPORTING User Facility Reporting... information, from any source, that reasonably suggests that a device has or may have caused or contributed to the death of a patient of your facility. You must also submit the report to the device...

  5. Application of 3D Code IBSimu for Designing an H-/D- Extraction System for the Texas A&M Facility Upgrade

    NASA Astrophysics Data System (ADS)

    Kalvas, T.; Tarvainen, O.; Clark, H.; Brinkley, J.; ńrje, J.

    2011-09-01

    A three dimensional ion optical code IBSimu is being developed at the University of Jyväskylä. So far the plasma modelling of the code has been restricted to positive ion extraction systems, but now a negative ion plasma extraction model has been added. The plasma model has been successfully validated with simulations of the Spallation Neutron Source (SNS) ion source extraction both in cylindrical symmetry and in full 3D, also modelling electron beam dumping and ion beam tilt. A filament-driven multicusp ion source has been installed at the Texas A&M University Cyclotron Institute for production of H- and D- beams as a part of the facility upgrade. The light ion beams, produced by the ion source, are accelerated with the K150 cyclotron for production and reacceleration of rare isotopes. The extraction system for the ion source was designed with IBSimu. The extraction features a water-cooled puller electrode with a permanent magnet dipole field for dumping the co-extracted electrons and a decelerating Einzel lens for adjusting the beam focusing for further beam transport. The ion source and the puller electrode are tilted at 4 degree angle with respect to the beam line. The extraction system can handle H- and D- beams with final beam energies from 5 keV to 15 keV using the same geometry, only adjusting the electrode voltages. So far, 24 μA of H- and 15 μA of D- have been extracted from the cyclotron.

  6. AMS 13 - Preface

    NASA Astrophysics Data System (ADS)

    Braucher, Régis; Bourlès, Didier

    2015-10-01

    As a result of significant improvements over the last years of the Accelerator Mass Spectrometry (AMS) technique, not only numerous new dedicated facilities were installed during recent years, but also an increasing number of applications emerged. Among these newly installed accelerators, some are used by private companies mainly for biomedical applications, confirming a trend at work for 30 years of the transfer of this technology from the academic world to the commercial world.

  7. Differential-output B-dot and D-dot monitors for current and voltage measurements on a 20-MA, 3-MV pulsed-power accelerator

    NASA Astrophysics Data System (ADS)

    Wagoner, T. C.; Stygar, W. A.; Ives, H. C.; Gilliland, T. L.; Spielman, R. B.; Johnson, M. F.; Reynolds, P. G.; Moore, J. K.; Mourning, R. L.; Fehl, D. L.; Androlewicz, K. E.; Bailey, J. E.; Broyles, R. S.; Dinwoodie, T. A.; Donovan, G. L.; Dudley, M. E.; Hahn, K. D.; Kim, A. A.; Lee, J. R.; Leeper, R. J.; Leifeste, G. T.; Melville, J. A.; Mills, J. A.; Mix, L. P.; Moore, W. B. S.; Peyton, B. P.; Porter, J. L.; Rochau, G. A.; Rochau, G. E.; Savage, M. E.; Seamen, J. F.; Serrano, J. D.; Sharpe, A. W.; Shoup, R. W.; Slopek, J. S.; Speas, C. S.; Struve, K. W.; van de Valde, D. M.; Woodring, R. M.

    2008-10-01

    We have developed a system of differential-output monitors that diagnose current and voltage in the vacuum section of a 20-MA 3-MV pulsed-power accelerator. The system includes 62 gauges: 3 current and 6 voltage monitors that are fielded on each of the accelerator’s 4 vacuum-insulator stacks, 6 current monitors on each of the accelerator’s 4 outer magnetically insulated transmission lines (MITLs), and 2 current monitors on the accelerator’s inner MITL. The inner-MITL monitors are located 6 cm from the axis of the load. Each of the stack and outer-MITL current monitors comprises two separate B-dot sensors, each of which consists of four 3-mm-diameter wire loops wound in series. The two sensors are separately located within adjacent cavities machined out of a single piece of copper. The high electrical conductivity of copper minimizes penetration of magnetic flux into the cavity walls, which minimizes changes in the sensitivity of the sensors on the 100-ns time scale of the accelerator’s power pulse. A model of flux penetration has been developed and is used to correct (to first order) the B-dot signals for the penetration that does occur. The two sensors are designed to produce signals with opposite polarities; hence, each current monitor may be regarded as a single detector with differential outputs. Common-mode-noise rejection is achieved by combining these signals in a 50-Ω balun. The signal cables that connect the B-dot monitors to the balun are chosen to provide reasonable bandwidth and acceptable levels of Compton drive in the bremsstrahlung field of the accelerator. A single 50-Ω cable transmits the output signal of each balun to a double-wall screen room, where the signals are attenuated, digitized (0.5-ns/sample), numerically compensated for cable losses, and numerically integrated. By contrast, each inner-MITL current monitor contains only a single B-dot sensor. These monitors are fielded in opposite-polarity pairs. The two signals from a pair

  8. Interfacing AM/FM with distribution SCADA

    SciTech Connect

    Horton, M.A. )

    1993-01-01

    This article examines an upgrade to Union Electric's (UE's) distribution SCADA system by interfacing it with UE's automated mapping and facility management (AM/FM) system to give dispatchers a way to relate facility outages geographically with a real-time monitoring system. The topics of the article are the original SCADA system, the AM/FM system, and the new SCADA system, the man-machine and machine-machine interface, and further applications.

  9. 21 CFR 803.33 - If I am a user facility, what must I include when I submit an annual report?

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ..., DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES MEDICAL DEVICE REPORTING User Facility... medical device reports, or the number assigned by us for reporting purposes in accordance with § 803.3; (2...) Date of the annual report and report numbers identifying the range of medical device reports that...

  10. 47 CFR 73.3571 - Processing of AM broadcast station applications.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 47 Telecommunication 4 2011-10-01 2011-10-01 false Processing of AM broadcast station applications... of AM broadcast station applications. (a) Applications for AM broadcast facilities are divided into... facilities of authorized stations. A major change for an AM station authorized under this part is any...

  11. 47 CFR 73.3571 - Processing of AM broadcast station applications.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 47 Telecommunication 4 2014-10-01 2014-10-01 false Processing of AM broadcast station applications... of AM broadcast station applications. (a) Applications for AM broadcast facilities are divided into... facilities of authorized stations. A major change for an AM station authorized under this part is any...

  12. 47 CFR 73.3571 - Processing of AM broadcast station applications.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 47 Telecommunication 4 2013-10-01 2013-10-01 false Processing of AM broadcast station applications... of AM broadcast station applications. (a) Applications for AM broadcast facilities are divided into... facilities of authorized stations. A major change for an AM station authorized under this part is any...

  13. 47 CFR 73.3571 - Processing of AM broadcast station applications.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 47 Telecommunication 4 2012-10-01 2012-10-01 false Processing of AM broadcast station applications... of AM broadcast station applications. (a) Applications for AM broadcast facilities are divided into... facilities of authorized stations. A major change for an AM station authorized under this part is any...

  14. 47 CFR 73.3571 - Processing of AM broadcast station applications.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 47 Telecommunication 4 2010-10-01 2010-10-01 false Processing of AM broadcast station applications... of AM broadcast station applications. (a) Applications for AM broadcast facilities are divided into... facilities of authorized stations. A major change for an AM station authorized under this part is any...

  15. Future of the NOSAMS Tandetron AMS system

    NASA Astrophysics Data System (ADS)

    von Reden, Karl F.

    2010-04-01

    The NOSAMS 3 MV Tandetron AMS system will soon reach its 20th anniversary of operation. A critical review of all aspects of the system is necessary to assess the analytical, economical and operational factors that enter into the consideration of either an upgrade or a replacement of the instrument. Recent in-house experience with the design and construction of a large-acceptance 14C AMS system gives us a benchmark with which to compare the expected outcome of an upgrade. The present ion analysis efficiency of our Tandetron system is roughly 1%, well below the 4% value of our new system. This affects the lower limit of analyzable sample size, speed of analysis, exposure to systematic errors, and the upper limit of achievable single-sample counting statistics. At first glance it may seem obvious that a replacement (even at higher cost) would be preferable to an upgrade. However, it will be shown that there are good reasons to consider the latter. One of the most compelling is the fact that the Tandetron is a state-of-the-art and superior high-current accelerator design with minimal signs of aging and very low-maintenance. Ion beam modeling calculations show that the main transmission limitation of the instrument is caused by the design of our injector, a four-magnet "Recombinator", making it difficult to perform reliable AMS with negative currents exceeding 80 μA. To be acceptable, an upgrade should bring the Tandetron to at least 3% ion efficiency by replacing the injector with a properly matched high-transmission device.

  16. AMS beyond 2000

    SciTech Connect

    Davis, J.C.

    1993-12-28

    The occasion of this conference, the Sixth International Conference on Accelerator Mass Spectrometry, falls sixteen years after the remarkable triple simultaneous discovery of this powerful isotopic measurement. In the interval since the Fifth Conference in Paris in 1991, new facilities of both large and small size have become fully operational, achieving impressive gains in both measurement throughput and precision. The purpose of this short review is to extrapolate from recent gains and experience and to project the status of the field beyond the coming millennial date. AMS achieved instant application in archaeology and the geosciences and its early growth was stimulated by the excitement caused by the early results. The ability to obtain an accurate radiocarbon date with a sample one thousand times smaller than possible with scintillation or gas counting, the ability to trace {sup 14}CO{sub 2} in sea water with a similar thousand fold shrinkage in sample size, and the wide utility of {sup 10}Be, {sup 26}Al, {sup 36}Cl, and {sup 129}I as tracers and chronometers of erosion, hydrology and paleoclimate were sufficient to drive the partial conversion of existing accelerators and the construction of new dedicated ones. These applications remain the core of the present field and continue to justify its growth. The past few years, however, have seen developments in new fields. Biomedicine, chemical kinetics, materials science, forensic dosimetry, and arms control/counter proliferation have been explored. These applications have varying promise and will influence development of AMS programs in new ways in the future.

  17. Juno II (AM-14)

    NASA Technical Reports Server (NTRS)

    1959-01-01

    Juno II (AM-14) on the launch pad just prior to launch, March 3, 1959. The payload of AM-14 was Pioneer IV, America's first successful lunar mission. The Juno II was a modification of Jupiter ballistic missile

  18. Synchronization system for Gamma-4 electrophysical facility

    NASA Astrophysics Data System (ADS)

    Grishin, A. V.; Nazarenko, S. T.; Kozachek, A. V.; Kalashnikov, D. A.; Glushkov, S. L.; Mironychev, B. P.; Martynov, V. M.; Turutin, V. V.; Kul'dyushov, D. A.; Pavlov, V. S.; Demanov, V. A.; Shikhanova, T. F.; Esaeva, Yu. A.

    2015-01-01

    A synchronization system for the Gamma-4 four-module electrophysical facility has been developed. It has been shown that the synchronization system should provide triggering (with precision not worse than ±3 ns) of the high-voltage gas-filled trigatron-type switches of the facility modules (144 spark gaps with an operating voltage of 1 MV), the pre-pulse switches of the modules (24 spark gaps with an operating voltage of 3 MV) and eight Arkad'ev-Marx generators (40 spark gaps with an operating voltage of 100 kV).

  19. AMS Data Analysis Overview

    SciTech Connect

    Malchow, Russell L.

    2015-04-20

    This presentation discusses standard techniques and processes used for radiation mapping (RM) via an AMS, Aerial Measurement System. The advantages and shortcomings of standard AMS-based RM are presented, along with some suggested areas for improvement. Issues touched on include what gets counted, data quality, background correction, data processing, altitude correction, isotope extraction, contouring, and time shift.

  20. SCADA -- AM/FM interface: Platforms, technology

    SciTech Connect

    Gilbert, R.F. )

    1994-05-01

    Efficient utility operations is enhanced by close interoperation between automated mapping/facility management (AM/FM) and supervisory control and data acquisition (SCADA) systems. Important benefits of such integration are improvements in service quality and reduced maintenance costs. Development of an AM/FM -- SCADA interface to provide automatic database and display generation for SCADA through AM/FM functions is continuing by Valmet Automation. To minimize or eliminate vendor-dependence, the AM/FM-SCADA interface is compliant with the Electric Power Research Institute's (EPRI) utility communication architecture (UCA). The utility industry is changing at an unprecedented rate. To remain a leader, or even to keep pace, utilities must be flexible and innovative. Competition forces companies to become more streamlined and efficient. These forces make the requirements for automation go beyond simple SCADA. Among several developing trends in the industry is the emergence of AM/FM. Collectively, these trends indicate the need to increase efficiency in the design, operation and maintenance of the transmission and distribution system. To accomplish its mission, SCADA and AM/FM must be a highly integrated system to provide timely information to its users. Open systems, the client-server paradigm and better information integration tools facilitate meeting these needs. UCA specification provides the technological glue, to achieve application integration between heterogeneous systems.

  1. AMS in Phytonutrition

    SciTech Connect

    Dueker, S R; Buchholz, B A

    2003-08-26

    As public interest in phytonutrition continues to increase, the result will be an augmented demand for extensive phytochemical research. The fact that foods are inherently phytochemically complex dictates a need to apply scientific techniques, which can detect synergistic interaction among the many active principles and adjuvant substances in the plant, and furthermore, modify the activities of these components. As illustrated by the experiments discussed in this presentation, the advantages of AMS are unique and extensive. These advantages are best summarized by Dr. John Vogel, an originator of biological AMS experimentation: ''AMS brings (at least) three advantages to biochemical tracing: high sensitivity for finding low probability events or for use of physiologic-sized doses; small sample sizes for painless biopsies or highly specific biochemical separations; and reduction of overall radioisotope exposures, inventories, and waste streams.'' AMS opens the door to increased phytochemical tracing in humans to obtain biochemical data concerning human health at dietary relevant levels of exposure. AMS, thus, obviates the need for uncertain extrapolations from animal models, which express marginal relevance to human metabolism. The unparalleled capabilities and benefits of AMS will undoubtedly establish this particular MS technique as an important analytical tool in phytochemical research.

  2. Measurement of the {sup 241}Am({gamma},n){sup 240}Am reaction in the giant dipole resonance region

    SciTech Connect

    Tonchev, A. P.; Howell, C. R.; Hutcheson, A.; Kwan, E.; Raut, R.; Rusev, G.; Tornow, W.; Hammond, S. L.; Huibregtse, C.; Kelley, J. H.; Kawano, T.; Vieira, D. J.; Wilhelmy, J. B.

    2010-11-15

    The photodisintegration cross section of the radioactive nucleus {sup 241}Am has been obtained using activation techniques and monoenergetic {gamma}-ray beams from the HI{gamma}S facility. The induced activity of {sup 240}Am produced via the {sup 241}Am({gamma},n) reaction was measured in the energy interval from 9 to 16 MeV utilizing high-resolution {gamma}-ray spectroscopy. The experimental data for the {sup 241}Am({gamma},n) reaction in the giant dipole resonance energy region are compared with statistical nuclear-model calculations.

  3. Progress on multi-nuclide AMS of JAEA-AMS-TONO

    NASA Astrophysics Data System (ADS)

    Saito-Kokubu, Yoko; Matsubara, Akihiro; Miyake, Masayasu; Nishizawa, Akimitsu; Ohwaki, Yoshio; Nishio, Tomohiro; Sanada, Katsuki; Hanaki, Tatsumi

    2015-10-01

    The JAEA-AMS-TONO (Japan Atomic Energy Agency's Accelerator Mass Spectrometer established at the Tono Geoscience Center) facility has been used for the dating of geological samples. The AMS system is versatile, based on a 5 MV tandem Pelletron-type accelerator. Since its establishment in 1997, the AMS system has been used for measurement of carbon-14 (14C) mainly for 14C dating studies in neotectonics and hydrogeology, in support of JAEA's research on geosphere stability applicable to the long-term isolation of high-level radioactive waste. Results of the measurement of 14C in soils and plants has been applied to the dating of fault activity and volcanism. Development of beryllium-10 (10Be) and aluminum-26 (26Al) AMS systems are now underway to enhance the capability of the multi-nuclide AMS in studies of dating by cosmogenic nuclides. The 10Be-AMS system has already been used for routine measurements in applied studies and improvements of the measurement technique have been made. Now we plan to fine tune the system and perform test measurements to develop the 26Al-AMS system.

  4. Elements in biological AMS

    SciTech Connect

    Vogel, J.S.; McAninch, J.; Freeman, S.

    1996-08-01

    AMS (Accelerator Mass Spectrometry) provides high detection sensitivity for isotopes whose half-lives are between 10 years and 100 million years. {sup 14}C is the most developed of such isotopes and is used in tracing natural and anthropogenic organic compounds in the Earth`s biosphere. Thirty-three elements in the main periodic table and 17 lanthanides or actinides have long lived isotopes, providing potential tracers for research in elemental biochemistry. Overlap of biologically interesting heavy elements and possible AMS tracers is discussed.

  5. The Schoolma'am.

    ERIC Educational Resources Information Center

    Donovan, Frances R.

    In the 1930s and reprinted in 1974, approximately 85 percent of the teachers in U.S. public schools were women--"schoolma'ams." This book provides a portrait of women teachers of that era, as well as a comprehensive overview of their lives, their careers, the conditions under which they taught in rural and urban schools, and the educational…

  6. AMS and climate change

    NASA Astrophysics Data System (ADS)

    Kutschera, Walter

    2010-04-01

    This paper attempts to draw a connection between information that can be gained from measurements with accelerator mass spectrometry (AMS) and the study of climate change on earth. The power of AMS to help in this endeavor is demonstrated by many contributions to these proceedings. Just like in archaeology, we are entering a phase of an 'integrated approach' to understand the various components of climate change. Even though some basic understanding emerged, we are still largely in a situation of a phenomenological description of climate change. Collecting more data is therefore of paramount interest. Based on a recent suggestion of 'geo-engineering' to take out CO 2 from the atmosphere, this radical step will also be briefly discussed.

  7. Alpha Magnetic Spectrometer (AMS) Overview

    NASA Video Gallery

    The Alpha Magnetic Spectrometer (AMS) is flying to the station on STS-134. The AMS experiment is a state-of-the-art particle physics detector being operated by an international team composed of 60 ...

  8. Delirium Research: Where Am I?

    MedlinePlus

    ... please turn JavaScript on. Feature: Delirium Research Where Am I? Past Issues / Fall 2015 Table of Contents ... to do. Read More "Delirium Research" Articles Where Am I? / Digging Into the Mysteries of Delirium / The ...

  9. Wideband Power Amplifier Modeling Incorporating Carrier Frequency Dependent AM/AM and AM/PM Characteristics

    NASA Astrophysics Data System (ADS)

    Tkacenko, A.

    2013-05-01

    In this article, we present a complex baseband model for a wideband power amplifier that incorporates carrier frequency dependent amplitude modulation (AM) and phase modulation (PM) (i.e., AM/AM and AM/PM) characteristics in the design process. The structure used to implement the amplifier model is a Wiener system which accounts for memory effects caused by the frequency selective nature of the amplifier, in addition to the nonlinearities caused by gain compression and saturation. By utilizing piecewise polynomial nonlinearities in the structure, it is shown how to construct the Wiener model to exactly accommodate all given AM/AM and AM/PM measurement constraints. Simulation results using data from a 50 W 32-way Ka-band solid-state power amplifier (SSPA) are provided, highlighting the differences in degradation incurred for a wideband input signal as compared with a narrowband input.

  10. 75 FR 31437 - Radio Broadcasting Services; AM or FM Proposals To Change The Community of License

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-03

    ...The following applicants filed AM or FM proposals to change the community of license: CEDAR COVE BROADCASTING, INC., Station KGQD, Facility ID 175363, BMPED-20100510ABP, From FRASER, CO, To SILVERTHORNE, CO; CHURCH PLANTERS OF AMERICA, Station NEW, Facility ID 173562, BMPED-20100426ADA, From DANBURY, NC, To MADISON, NC; ENTERPRISE COPORATION OF THE DELTA, Station NEW, Facility ID 175323,......

  11. 77 FR 4817 - Radio Broadcasting Services; AM or FM Proposals To Change The Community of License

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-01-31

    ...The following applicants filed AM or FM proposals to change the community of license: AMERICAN FAMILY ASSOCIATION, Station KATG, Facility ID 86330, BPED-20120113ACF, From ATHENS, TX, To ELKHART, TX; CALVARY CHAPEL OF KANSAS CITY, Station KYLF, Facility ID 174965, BMPED- 20120117AEC, From FREEMAN, MO, To ADRIAN, MO; COCHISE BROADCASTING LLC, Station KZXQ, Facility ID 78273, BMPH-20111202AFT,......

  12. 75 FR 47596 - Radio Broadcasting Services; AM or FM Proposals To Change the Community of License

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-08-06

    ...The following applicants filed AM or FM proposals to change the community of license: 1TV.COM, INC., Station KBSZ, Facility ID 11217, BP-20100429ADM, From WICKENBURG, AZ, To APACHE JUNCTION, AZ; CEDAR COVE BROADCASTING, INC., Station KADE, Facility ID 173616, BMPED- 20100707GWD, From SALIDA, CO, To SNOWMASS VILLAGE, CO; DELTA MEDIA CORPORATION, Station KLWB-FM, Facility ID 183335,......

  13. 78 FR 69086 - Radio Broadcasting Services; AM or FM Proposals To Change the Community of License

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-18

    ...The following applicants filed AM or FM proposals to change the community of license: CBS RADIO ANNAPOLIS LLC, Station WLZL, Facility ID 20983, BMPH-20131022ALD, From ANNAPOLIS, MD, To COLLEGE PARK, MD; FAMILY LIFE MINISTRIES, INC., Station WCIK, Facility ID 20631, BPH-20130924AJT, From BATH, NY, To AVOCA, NY; PRITCHARD BROADCASTING CORPORATION, Station WQKQ, Facility ID 7635, BPH-......

  14. 75 FR 13761 - Radio Broadcasting Services; AM or FM Proposals To Change the Community of License

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-23

    ...The following applicants filed AM or FM proposals to change the community of license: AMERICAN FAMILY ASSOCIATION, Station WSQH, Facility ID 91176, BMPED-20100205ABG, From MERIDIAN, MS, To DECATUR, MS; BRAHMIN BROADCASTING CORPORATION, Station KPAD, Facility ID 166006, BPH-20100127AAK, From WHEATLAND, WY, To RAWLINS, WY; BRAHMIN BROADCASTING CORPORATION, Station KMJY, Facility ID 164284, BPH-......

  15. 77 FR 66839 - Radio Broadcasting Services; AM or FM Proposals To Change The Community of License

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-11-07

    ...The following applicants filed AM or FM proposals to change the community of license: ALEX MEDIA, INC., Station NEW, Facility ID 189557, BMPH-20121002ACH, From MCCALL, ID, To HUNTINGTON, OR; GATEWAY RADIO WORKS, INC., Station WKYN, Facility ID 23345, BPH-20121002ACW, From OWINGSVILLE, KY, To MOUNT STERLING, KY; GENESIS COMMUNICATIONS OF TAMPA BAY, INC., Station WMGG, Facility ID 67135,......

  16. 77 FR 24954 - Radio Broadcasting Services; AM or FM Proposals to Change the Community of License

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-04-26

    ...The following applicants filed AM or FM proposals to change the community of license: DIVINE WORD COMMUNICATIONS, Station WDLG, Facility ID 86328, BPED-20120313AEE, From THOMASVILLE, AL, To GROVE HILL; FIFE COMMUNICATION COMPANY, L.C., Station KCVM, Facility ID 17227, BPH-20120327ALB, From HUDSON, IA, To EVANSDALE; HOG RADIO, INC., Station KLYR-FM, Facility ID 22057, BPH-20120208ADK, From......

  17. 77 FR 38631 - Radio Broadcasting Services; AM or FM Proposals To Change the Community of License

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-28

    ...The following applicants filed AM or FM proposals to change the community of license: AGNUS DEI COMMUNICATIONS, INC., Station NEW, Facility ID 190433, BNPH-20120529AKN, From MISSION, SD, To MURDO, SD; ALEX MEDIA, INC., Station NEW, Facility ID 190402, BNPH-20120515ABA, From FRANKLIN, LA, To BELLE ROSE, LA; CBS RADIO STATIONS INC., Station WMSF, Facility ID 29567, BPH-20120529AKO, From WEST......

  18. 75 FR 20597 - Radio Broadcasting Services; AM or FM Proposals To Change the Community of License

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-04-20

    ...The following applicants filed AM or FM proposals to change the community of license: COCHISE BROADCASTING LLC, Station KZXQ, Facility ID 78273, BPH-20071025ACM, From RESERVE, NM, To CONCHO, AZ; DAILEY CORPORATION, Station WETZ-FM, Facility ID 18534, BPH- 20100329AFI, From NEW MARTINSVILLE, WV, To VIENNA, WV; LOUT, JAMES M, Station NEW, Facility ID 170971, BMPH-20100301ABS, From PINELAND, TX,......

  19. 77 FR 57086 - Radio Broadcasting Services; AM or FM Proposals To Change The Community of License.

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-09-17

    ...The following applicants filed AM or FM proposals to change the community of license: ALEXANDRA COMMUNICATIONS, INC., Station KRKZ- FM, Facility ID 189499, BPH-20120725AHL, From NETARTS, OR, To CHINOOK, WA; ALEXANDRA COMMUNICATIONS, INC., Station KTIL, Facility ID 50554, BMP-20120725AHO, From TILLAMOOK, OR, To NETARTS, OR; BIRACH BROADCASTING CORPORATION, Station NEW, Facility ID 136069, BMP-......

  20. 75 FR 36393 - Radio Broadcasting Services; AM or FM Proposals To Change the Community of License

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-06-25

    ...The following applicants filed AM or FM proposals to change the community of license: ENTERTAINMENT MEDIA TRUST, DENNIS J. WATKINS, TRUSTEE, Facility ID 5281, BP-20100216AAY, From UNIVERSITY CITY, MO, To FAIRVIEW HEIGHTS, IL; OCEAN SIDE BROADCASTING, INC., Facility ID 177396, BMPED-20100517AAA, From ELK MOUNTAIN, WY, To WEST LARAMIE, WY; RUDEX BROADCASTING LIMITED CORPORATION, Facility ID......

  1. 75 FR 1621 - Radio Broadcasting Services; AM or FM Proposals To Change the Community of License

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-01-12

    ...The following applicants filed AM or FM proposals to change the community of license: COVENANT NETWORK, Station NEW, Facility ID 171236, BMPED-20091118AGS, From ELDON, MO, To ST. THOMAS, MO; COX RADIO, INC., Station WALR-FM, Facility ID 48728, BPH-20091124ABA, From GREENVILLE, GA, To PALMETTO, GA; DARBY ADVERTISING, INC., Station WGRL, Facility ID 170939, BMPH-20091202ACC, From FREDERIC, MI,......

  2. 75 FR 74732 - Radio Broadcasting Services; AM or FM Proposals To Change The Community of License

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-12-01

    ...The following applicants filed AM or FM proposals to change the community of license: Armada Media--McCook, Inc., Station KMTY, Facility ID 27174, BPH-20101021ADL, from Holdrege, NE, to Gibbon, NE; Christian Listening Network, Inc., Station WGQR, Facility ID 60881, BPH-20101108AAZ, from Elizabethtown, NC, to Rennert, NC; Entravision Holdings, LLC, Station WNUE-FM, Facility ID 46969,......

  3. 76 FR 65192 - Radio Broadcasting Services; AM or FM Proposals To Change the Community of License

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-10-20

    ...The following applicants filed AM or FM proposals to change the community of license: Eastern Sierra Broadcasting, Station KCWK, Facility ID 160324, BMP-20111004AED, from North Las Vegas, NV, to Laughlin, NV; Episcopo, Joseph A., Station NEW, Facility ID 189518, BNPH-20110929AGK, from Rotan, TX, to Roscoe, TX; Everglades City Broadcasting Company, Inc., Station WBGY, Facility ID 47386, BPED-......

  4. 75 FR 66098 - Radio Broadcasting Services; AM or FM Proposals To Change the Community of License

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-27

    ...The following applicants filed AM or FM proposals to change the community of license: GRACE PUBLIC RADIO, Station KFKB, Facility ID 174471, BMPED-20100803AAM, From GIRARD, KS, To LA HARPE, KS; LORENZ E. PROIETTI, Station KMQS, Facility ID 166044, BPH-20100104AAK, From WHEATLAND, WY, To THE BUTTES, WY; NETWORK OF GLORY, INC., Station WJGS, Facility ID 172173, BMPED-20101012ACO, From THOMSON,......

  5. 76 FR 72705 - Radio Broadcasting Services; AM or FM Proposals To Change the Community of License

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-11-25

    ...The following applicants filed AM or FM proposals to change the community of license: DOUGLAS BROADCASTING, INC., Station KLNQ, Facility ID161152, BMP-20111107ALX, From CASPER, WY, To EVANSVILLE, WY; HISPANIC TARGET MEDIA INC., Station NEW, Facility ID 183311, BNPH- 20091019ADD, From KERNVILLE, CA, To RIDGECREST, CA; OLIVET NAZARENE UNIVERSITY, Station WTMK, Facility ID 90498,......

  6. 76 FR 55388 - Radio Broadcasting Services; AM or FM Proposals To Change the Community of License.

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-09-07

    ...The following applicants filed AM or FM proposals to change the community of license: CBS Radio East Inc., Station WLZL, Facility ID 72177, BPH-20110812ACL, from Annapolis, MD, to Bowie, MD; Indiana Community Radio Corporation, Station WYER, Facility ID 173401, BPED- 20110705AAO, from Carmi, IL, To Albion, IL; Mount Wilson FM Broadcasters, Inc., Station NEW, Facility ID 183343,......

  7. Why Am I So Sad?

    MedlinePlus

    ... Chloe & Nurb Meet The Brain (Movie) Quiz: Do You Need a Flu Shot? Got Homework? Here's Help White House Lunch Recipes Why Am I So Sad? KidsHealth > For Kids > Why Am I So Sad? ... Do Kids Feel Sad About? Are Sad Feelings Normal? How Can You Deal With Sad Feelings? en español ¿Por qué ...

  8. 40 CFR 63.7881 - Am I subject to this subpart?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... source category that is regulated by another subpart under 40 CFR part 63. This condition applies... 40 Protection of Environment 14 2013-07-01 2013-07-01 false Am I subject to this subpart? 63.7881....7881 Am I subject to this subpart? (a) This subpart applies to you if you own or operate a facility...

  9. 40 CFR 63.7781 - Am I subject to this subpart?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 14 2013-07-01 2013-07-01 false Am I subject to this subpart? 63.7781 Section 63.7781 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS... Facilities What This Subpart Covers § 63.7781 Am I subject to this subpart? You are subject to this...

  10. 40 CFR 63.7781 - Am I subject to this subpart?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 13 2011-07-01 2011-07-01 false Am I subject to this subpart? 63.7781 Section 63.7781 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS... Facilities What This Subpart Covers § 63.7781 Am I subject to this subpart? You are subject to this...

  11. 40 CFR 63.7881 - Am I subject to this subpart?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... source category that is regulated by another subpart under 40 CFR part 63. This condition applies... 40 Protection of Environment 14 2014-07-01 2014-07-01 false Am I subject to this subpart? 63.7881....7881 Am I subject to this subpart? (a) This subpart applies to you if you own or operate a facility...

  12. 40 CFR 63.7781 - Am I subject to this subpart?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 13 2010-07-01 2010-07-01 false Am I subject to this subpart? 63.7781 Section 63.7781 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS... Facilities What This Subpart Covers § 63.7781 Am I subject to this subpart? You are subject to this...

  13. 40 CFR 63.7781 - Am I subject to this subpart?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 14 2012-07-01 2011-07-01 true Am I subject to this subpart? 63.7781 Section 63.7781 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS... Facilities What This Subpart Covers § 63.7781 Am I subject to this subpart? You are subject to this...

  14. 40 CFR 63.7781 - Am I subject to this subpart?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 14 2014-07-01 2014-07-01 false Am I subject to this subpart? 63.7781 Section 63.7781 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) AIR PROGRAMS... Facilities What This Subpart Covers § 63.7781 Am I subject to this subpart? You are subject to this...

  15. 40 CFR 63.7881 - Am I subject to this subpart?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... source category that is regulated by another subpart under 40 CFR part 63. This condition applies... 40 Protection of Environment 13 2011-07-01 2011-07-01 false Am I subject to this subpart? 63.7881....7881 Am I subject to this subpart? (a) This subpart applies to you if you own or operate a facility...

  16. 40 CFR 63.7881 - Am I subject to this subpart?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... source category that is regulated by another subpart under 40 CFR part 63. This condition applies... 40 Protection of Environment 14 2012-07-01 2011-07-01 true Am I subject to this subpart? 63.7881....7881 Am I subject to this subpart? (a) This subpart applies to you if you own or operate a facility...

  17. 'Who am I?'.

    PubMed

    Schellinski, Kristina

    2014-04-01

    The dreams and existential questions of those, who came into being in order to replace a dead person, pivot around a central cry: 'Who am I?' If conceived, born or designated as a replacement child, such an individual may suffer-even as an adult-from a rarely recognized unconscious confusion of identity, compounded by grief and survivors' guilt. From before the child is born, the archetypal forces of death and life are joined in a fateful constellation; the soul of the replacement child bears the shadow of death from the very beginning of life. Hope for the replacement child lies in an emergence of true self as soul recreates original life. Analysis can help the replacement child experience a 'rebirth into true life', not as 'the one who returned', but as a psychologically newborn individual; the path of individuation countering the replacement child's identification with the dead. Jungian analysis offers unique concepts for understanding and healing the replacement child; C.G. Jung himself was born after two stillborn babies and an infant that lived only five days. PMID:24673274

  18. On-line I-/Te- separation for the AMS analysis of 125I

    NASA Astrophysics Data System (ADS)

    Charles, C. R. J.; Cornett, R. J.; Zhao, X.-L.; Litherland, A. E.; Kieser, W. E.

    2015-10-01

    The isobar separator for anions (ISA) was used together with a 3 MV tandem accelerator mass spectrometer (AMS) to demonstrate the real time (on-line) separation of Te- from I-. Following the ion source mass spectrometry and major retardation to tens of eV, the ISA uses a radiofrequency quadrupole (RFQ) ion guide to confine and direct I- and associated Te- isobar anions through a gas-reaction cell, where chemical reactions occur at eV energies with the electronegative gas NO2. Anions are subsequently reaccelerated out of the ISA to near original ion source extraction energies for AMS analysis. At 5 mTorr NO2 in the ISA gas-reaction cell, 125Te- was observed to be attenuated by a factor of ∼107 as compared to 127I- that did not experience significant (<50%) losses. A comparative test using 37Cl- and 32S- (having similar chemical properties to iodine and tellurium) showed a 32S- attenuation of >107 relative to 37Cl- under the same ISA-AMS conditions. The preferential destruction of Te- (and S-) at eV energies in the ISA is likely due to a larger favorable destruction cross-section with NO2. This study is the first demonstration of I-Te anion separation for AMS, and makes possible the use of 125I, free of the contaminant 125Te isobar after suitable sample purification, for future 129I/125I carrier-free analyses of natural samples at ultra-low trace levels.

  19. Improving AMS Detection of the Biomedical Radiotracer 41Ca with Segmented Radio-Frequency Quadrupoles

    NASA Astrophysics Data System (ADS)

    Alary, Jean-Francois; Javahery, Gholamreza; Kieser, William E.; Litherland, Albert E.; Cousins, Lisa M.

    41Ca is an important biomedical radiotracer finding many applications in biological, nutritional and medical studies. The detection of 41Ca by AMS is however limited by an important background signal of 41K originating from biological samples and from contaminated cesium in the source. An approach consisting of using PbF2-assisted in-source fluorination in combination with an Isobar Separator for Anions (ISA), a device incorporating a low energy radio frequency quadrupole (RFQ) gas cell, promises to push down the limit of detection of 41Ca attainable on small (<3 MV) accelerator mass spectrometry (AMS) systems by several orders of magnitude. Such on-line reduction of 41K should also result in a simplification of biological sample preparation and less concern about variable 41K contamination of the cesium beam. The selective collision-induced fragmentation of KF3- versus CaF3-, occurring in the gas cell of an ISA equipped with a double segment RFQ, have been reported earlier1), leading to K being suppressed by a factor of 1e4 over Ca. We present here the future configuration of the ISA, redesigned using multi-segmented RFQ to enhance further this effect and improve transmission through the gas cell. A segmented RFQ is an appropriate tool to finely control ion energy down to the few eV's separating the fragmentation energies of the two fluoride species. This pre-commercial ISA destined to be used at the newly established A. E. Lalonde AMS laboratory at University of Ottawa (Canada) will be presented. Some practicalities of integrating a low energy RFQ-based device in a high energy AMS system will also be discussed.

  20. AMS Weather Studies and AMS Ocean Studies: Dynamic, College-Level Geoscience Courses Emphasizing Current Earth System Data

    NASA Astrophysics Data System (ADS)

    Brey, J. A.; Geer, I. W.; Moran, J. M.; Weinbeck, R. S.; Mills, E. W.; Blair, B. A.; Hopkins, E. J.; Kiley, T. P.; Ruwe, E. E.

    2008-12-01

    at NOAA's National Weather Service Training Center in Kansas City, MO, and plans a workshop in May 2009. From June 2006-2008, similar oceanography workshops were held at University of Washington and National Oceanic and Atmospheric Administration (NOAA) facilities in Seattle, WA. Participants implemented the course following the workshop and were then invited to a follow-up workshop at the AMS Annual Meeting to present their course experiences and learn more about general diversity initiatives within the atmospheric and oceanic sciences. As a result of the Diversity Projects, 145 minority-serving institutions have implemented AMS Weather Studies and 77 have implemented AMS Ocean Studies.

  1. AMS/DOE Graduate Fellowship

    SciTech Connect

    None None

    2011-06-15

    The American Meteorological Society (AMS) Fellowship Program was established in 1991. To date, AMS has awarded over 150 Fellowships. This five year DOE award provided for one Fellowship a year for five years. The objective of this program is to provide enough funding to a student so as to allow the student to focus solely on coursework requirements, thus allowing them to begin their research at an earlier date.

  2. The use of AMS to the biomedical sciences

    SciTech Connect

    Vogel, J.S.

    1991-04-01

    The Center for Accelerator Mass Spectroscopy (AMS) began making AMS measurements in 1989. Biomedical experiments were originally limited by sample preparation techniques, but we expect the number of biomedical samples to increase five-fold. While many of the detailed techniques for making biomedical measurements resemble those used in other fields, biological tracer experiments differ substantially from the observational approaches of earth science investigators. The role of xenobiotius in initiating mutations in cells is of particular interest. One measure of the damage caused to the genetic material is obtained by counting the number of adducts formed by a chemical agent at a given dose. AMS allows direct measurement of the number of adducts through stoichiometric quantification of the {sup 14}C label attached to the DNA after exposure to a labelled carcinogen. Other isotopes of interest include tritium, {sup 36}Cl, {sup 79}SE, {sup 41}Ca, {sup 26}Al and {sup 129}I. Our experiments with low dose environmental carcinogens reflect the protocols which will become a common part of biomedical AMS. In biomedical experiments, the researcher defines the carbon to be analyzed through dissection and/or chemical purification; thus the sample is merely'' combusted and graphitized at the AMS facility. However, since biomedical samples can have a {sup 14}C range of five orders of magnitude, preparation of graphite required construction of a special manifold to prevent cross-contamination. Additionally, a strain of {sup 14}C-depleted C57BL/6 mice is being developed to further reduce background in biomedical experiments. AMS has a bright and diverse future in radioisotope tracing. Such work requires a dedicated amalgamation of AMS scientists and biomedical researchers who will redesign experimental protocols to maximize the AMS technique and minimize the danger of catastrophic contamination. 18 refs., 4 figs., 1 tab.

  3. 9 CFR 149.6 - Slaughter facilities.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... Certification Program Web site on the Internet at http://www.aphis.usda.gov/vs/trichinae. If the slaughter... contacting the AMS Trichinae Analyst and Laboratory Certification Program Manager, USDA, AMS, Science and... Facility Sample Size Determination Table on the Internet at http://www.aphis.usda.gov/vs/trichinae to...

  4. 9 CFR 149.6 - Slaughter facilities.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... Certification Program Web site on the Internet at http://www.aphis.usda.gov/vs/trichinae. If the slaughter... contacting the AMS Trichinae Analyst and Laboratory Certification Program Manager, USDA, AMS, Science and... Facility Sample Size Determination Table on the Internet at http://www.aphis.usda.gov/vs/trichinae to...

  5. 241Am (n,gamma) isomer ratio measurement

    SciTech Connect

    Bond, Evelyn M; Vieira, David J; Moody, Walter A; Slemmons, Alice K

    2011-01-05

    The objective of this project is to improve the accuracy of the {sup 242}Cm/{sup 241}Am radiochemistry ratio. We have performed an activation experiment to measure the {sup 241}Am(n,{gamma}) cross section leading to either the ground state of {sup 242g}Am (t{sub 1/2} = 16 hr) which decays to {sup 242}Cm (t{sub 1/2} = 163 d) or the long-lived isomer {sup 242m}Am (t{sub 1/2} = 141 yr). This experiment will develop a new set of americium cross section evaluations that can be used with a measured {sup 242}Cm/{sup 241}Am radiochemical measurement for nuclear forensic purposes. This measurement is necessary to interpret the {sup 242}Cm/{sup 241}Am ratio because a good measurement of this neutron capture isomer ratio for {sup 241}Am does not exist. The targets were prepared in 2007 from {sup 241}Am purified from LANL stocks. Gold was added to the purified {sup 241}Am as an internal neutron fluence monitor. These targets were placed into a holder, packaged, and shipped to Forschungszentrum Karlsruhe, where they were irradiated at their Van de Graff facility in February 2008. One target was irradiated with {approx}25 keV quasimonoenergetic neutrons produced by the {sup 7}Li(p,n) reaction for 3 days and a second target was also irradiated for 3 days with {approx}500 keV neutrons. Because it will be necessary to separate the {sup 242}Cm from the {sup 241}Am in order to measure the amount of {sup 242}Cm by alpha spectrometry, research into methods for americium/curium separations were conducted concurrently. We found that anion exchange chromatography in methanol/nitric acid solutions produced good separations that could be completed in one day resulting in a sample with no residue. The samples were returned from Germany in July 2009 and were counted by gamma spectrometry. Chemical separations have commenced on the blank sample. Each sample will be spiked with {sup 244}Cm, dissolved and digested in nitric acid solutions. One third of each sample will be processed at a time

  6. Further study on highly sensitive AMS measurement of 53Mn

    NASA Astrophysics Data System (ADS)

    Kejun, Dong; Hao, Hu; Xianggao, Wang; Chaoli, Li; Ming, He; Zhenyu, Li; Shaoyong, Wu; Jiancheng, Liu; Guowen, Zheng; Heng, Li; Zhigang, Chen; Guangshan, Liu; Jian, Yuan; Shan, Jiang

    2012-08-01

    The AMS facility at China Institute of Atomic Energy has been equipped with a ΔE-Q3D detection system for the measurements of 53Mn. While the sample material of MnO2 and the extraction ions of MnO- were used previously in AMS measurement of 53Mn with fairly good results, a method has recently been developed with the extraction of MnF- from ion source using MnF2 and MnO2 + PbF2 as sample materials. As a result, a sensitivity of 10-14 (53Mn/Mn) has been achieved. Compared with the original MnO-/MnO2 approach, the method of MnF- extraction, combined with ΔE-Q3D detection technique, demonstrated an improved sensitivity for AMS measurement of 53Mn.

  7. AMS of the Minor Plutonium Isotopes.

    PubMed

    Steier, P; Hrnecek, E; Priller, A; Quinto, F; Srncik, M; Wallner, A; Wallner, G; Winkler, S

    2013-01-01

    VERA, the Vienna Environmental Research Accelerator, is especially equipped for the measurement of actinides, and performs a growing number of measurements on environmental samples. While AMS is not the optimum method for each particular plutonium isotope, the possibility to measure (239)Pu, (240)Pu, (241)Pu, (242)Pu and (244)Pu on the same AMS sputter target is a great simplification. We have obtained a first result on the global fallout value of (244)Pu/(239)Pu = (5.7 ± 1.0) × 10(-5) based on soil samples from Salzburg prefecture, Austria. Furthermore, we suggest using the (242)Pu/(240)Pu ratio as an estimate of the initial (241)Pu/(239)Pu ratio, which allows dating of the time of irradiation based solely on Pu isotopes. We have checked the validity of this estimate using literature data, simulations, and environmental samples from soil from the Salzburg prefecture (Austria), from the shut down Garigliano Nuclear Power Plant (Sessa Aurunca, Italy) and from the Irish Sea near the Sellafield nuclear facility. The maximum deviation of the estimated dates from the expected ages is 6 years, while relative dating of material from the same source seems to be possible with a precision of less than 2 years. Additional information carried by the minor plutonium isotopes may allow further improvements of the precision of the method. PMID:23565016

  8. AMS of the Minor Plutonium Isotopes

    PubMed Central

    Steier, P.; Hrnecek, E.; Priller, A.; Quinto, F.; Srncik, M.; Wallner, A.; Wallner, G.; Winkler, S.

    2013-01-01

    VERA, the Vienna Environmental Research Accelerator, is especially equipped for the measurement of actinides, and performs a growing number of measurements on environmental samples. While AMS is not the optimum method for each particular plutonium isotope, the possibility to measure 239Pu, 240Pu, 241Pu, 242Pu and 244Pu on the same AMS sputter target is a great simplification. We have obtained a first result on the global fallout value of 244Pu/239Pu = (5.7 ± 1.0) × 10−5 based on soil samples from Salzburg prefecture, Austria. Furthermore, we suggest using the 242Pu/240Pu ratio as an estimate of the initial 241Pu/239Pu ratio, which allows dating of the time of irradiation based solely on Pu isotopes. We have checked the validity of this estimate using literature data, simulations, and environmental samples from soil from the Salzburg prefecture (Austria), from the shut down Garigliano Nuclear Power Plant (Sessa Aurunca, Italy) and from the Irish Sea near the Sellafield nuclear facility. The maximum deviation of the estimated dates from the expected ages is 6 years, while relative dating of material from the same source seems to be possible with a precision of less than 2 years. Additional information carried by the minor plutonium isotopes may allow further improvements of the precision of the method. PMID:23565016

  9. Neutron transmission and capture of 241Am

    NASA Astrophysics Data System (ADS)

    Lampoudis, C.; Kopecky, S.; Plompen, A.; Schillebeeckx, P.; Wynants, R.; Gunsing, F.; Sage, C.; Bouland, O.; Noguere, G.

    2013-03-01

    A set of neutron transmission and capture experiments based on the Time Of Flight (TOF) technique, were performed in order to determine the 241Am capture cross section in the energy range from 0.01 eV to 1 keV. The GELINA facility of the Institute for Reference Materials and Measurements (IRMM) served as the neutron source. A pair of C6D6 liquid scintillators was used to register the prompt gamma rays emerging from the americium sample, while a Li-glass detector was used in the transmission setup. Results from the capture and transmission data acquired are consistent with each other, but appear to be inconsistent with the evaluated data files. Resonance parameters have been derived for the data up to the energy of 100 eV.

  10. Preliminary measurements on the new TOF system installed at the AMS beamline of INFN-LABEC

    NASA Astrophysics Data System (ADS)

    Palla, L.; Castelli, L.; Czelusniak, C.; Fedi, M. E.; Giuntini, L.; Liccioli, L.; Mandò, P. A.; Martini, M.; Mazzinghi, A.; Ruberto, C.; Schiavulli, L.; Sibilia, E.; Taccetti, F.

    2015-10-01

    A high resolution time of flight (TOF) system has been developed at LABEC, the 3 MV Tandem accelerator laboratory in Florence, in order to improve the sensitivity of AMS measurements on carbon samples with ultra-low concentration and also to measure other isotopes, such as 129I. The system can be employed to detect and identify residual interfering particles originated from the break-up of molecular isobars. The set-up has been specifically designed for low energy heavy ions: it consists of two identical time pick-off stations, each made up of a thin conductive foil and a Micro-Channel Plate (MCP) multiplier. The beamline is also equipped with a silicon detector, installed downstream the stop TOF station. In this paper the design of the new system and the implemented readout electronics are presented. The tests performed on the single time pick-off station are reported: they show that the maximum contribution to the timing resolution given by both the intrinsic MCP resolution and the electronics is ⩽500 ps (FWHM). For these tests, single particle pulsed beams of 2-5 MeV protons and 10 MeV 12C3+ ions, to simulate typical AMS conditions, were used. The preliminary TOF and TOF-E (TOF-energy) measurements performed with carbon beams after the installation of the new system on the AMS beam line are also discussed. These measurements were performed using the foil-MCP as the start stage and a silicon detector as the stop stage. The spectra acquired with carbon ions suggest the presence of a small residual background from neighboring masses reaching the end of the beamline with the same energy as the rare isotope.

  11. 76 FR 2382 - Radio Broadcasting Services; AM or FM Proposals To Change the Community of License

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-01-13

    ...The following applicants filed AM or FM proposals to change the community of license: Educational Radio for the Public of the New Millennium, Station WRJI, Facility ID 93884, BPED-20101126AAP, From East Greenwich, RI, to Providence, RI; Franciscan University of Steubenville, Station NEW, Facility ID 171722, BMPED-20101129APH, From Hopedale, OH, To Wintersville, OH; Grace Broadcasting Services,......

  12. 77 FR 33217 - Radio Broadcasting Services; AM or FM Proposals To Change the Community of License

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-06-05

    ...The following applicants filed AM or FM proposals to change the community of license: LOST COAST COMMUNICATIONS, INC., Station KHUM, Facility ID 33653, BPH-20120511AFX, From GARBERVILLE, CA, To CUTTEN, CA; SSR COMMUNICATIONS, INC., Station NEW, Facility ID 190455, BNPH-20120427ABN, From BORDELONVILLE, LA, To WASHINGTON,...

  13. 77 FR 45352 - Radio Broadcasting Services; AM or FM Proposals To Change the Community of License

    Federal Register 2010, 2011, 2012, 2013, 2014

    2012-07-31

    ...The following applicants filed AM or FM proposals to change the community of license: NORTHSTAR BROADCATING CORPORATION, Station WRSV, Facility ID 54823, BPH-20120530AFQ, From ROCKY MOUNT, NC, To ELM CITY, NC; SIERRA RADIO, INC., Station KVXX, Facility ID 31618, BPH- 20101004ACX, From QUINCY, CA, To CONCOW,...

  14. AMS-02 fits dark matter

    NASA Astrophysics Data System (ADS)

    Balázs, Csaba; Li, Tong

    2016-05-01

    In this work we perform a comprehensive statistical analysis of the AMS-02 electron, positron fluxes and the antiproton-to-proton ratio in the context of a simplified dark matter model. We include known, standard astrophysical sources and a dark matter component in the cosmic ray injection spectra. To predict the AMS-02 observables we use propagation parameters extracted from observed fluxes of heavier nuclei and the low energy part of the AMS-02 data. We assume that the dark matter particle is a Majorana fermion coupling to third generation fermions via a spin-0 mediator, and annihilating to multiple channels at once. The simultaneous presence of various annihilation channels provides the dark matter model with additional flexibility, and this enables us to simultaneously fit all cosmic ray spectra using a simple particle physics model and coherent astrophysical assumptions. Our results indicate that AMS-02 observations are not only consistent with the dark matter hypothesis within the uncertainties, but adding a dark matter contribution improves the fit to the data. Assuming, however, that dark matter is solely responsible for this improvement of the fit, it is difficult to evade the latest CMB limits in this model.

  15. Astroparticle Physiscs with AMS02

    NASA Astrophysics Data System (ADS)

    Incagli, Marco

    2010-03-01

    AMS02 (Alpha Magnetic Spectrometer) is the second version of a typical particle physics detector which will be installed, starting from summer 2010, on the International Space Station (ISS) to measure the spectrum of charged cosmic rays in the region 1 GeV-1 TeV, with a high capability of identifying and measuring energy and direction of photons. Thanks to the large acceptance, to the long flight duration (at least 3 years) and to the state of the art of the techniques for particle identification, AMS has the possibility of achieving the highest sensitivity in the search of WIMP Dark Matter in this energy domain, through the contemporary measuremnt of the absolute and relative spectra of electrons and positrons, protons and antiprotons, photons and, eventually, antideuterons. The AMS02 experiment is also able to verify the existence of antimatter in the universe through the measurement of the ratio antihelium/helium at the 10-9 level. AMS02 will measure also with high precision the nuclei spectra up to iron, providing relevant informations on the theories of transport and diffusion of cosmic rays.

  16. Texas A&M University

    ERIC Educational Resources Information Center

    Osters, Sandi

    2009-01-01

    Texas A&M University is a research extensive institution located in College Station. More than 45,000 students attend the university (about 20% are graduate or professional students). Academically, the university is known for its engineering, business, and agricultural and veterinary medicine programs, although there are more than 150 programs of…

  17. 78 FR 55075 - Radio Broadcasting Services; AM or FM Proposals To Change the Community of License

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-09-09

    ...The following applicants filed AM or FM proposals to change the community of license: CONNOISSEUR MEDIA OF ERIE, LLC, Station NEW, Facility ID 191524, BNPH-20130724ABK, From ERIE, PA, To MINA, NY; CRAWFORD, CHARLES E, Station NEW, Facility ID 191559, BNPH-20130723AEA, From CROWELL, TX, To LUEDERS, TX; CRAWFORD, CHARLES E, Station NEW, Facility ID 191560, BNPH-20130723AEB, From SONORA, TX, To......

  18. 78 FR 13670 - Radio Broadcasting Services; AM or FM Proposals To Change the Community of License

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-28

    ...The following applicants filed AM or FM proposals to change the community of license: DAIJ MEDIA, LLC, Station KJOZ, Facility ID 20625, BP-20120731AAA, From CONROE, TX, To BAYTOWN, TX; GREAT SOUTH WIRELESS, LLC, Station WZZN, Facility ID 5885, BPH-20130207ABP, From UNION GROVE, AL, To TRIANA, AL; REED BROADCASTING, LLC, Station WRAB, Facility ID 2552, BP-20130207ABK, From ARAB, AL, To UNION......

  19. 75 FR 63475 - Radio Broadcasting Services; AM or FM Proposals To Change The Community of License

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-10-15

    ...The following applicants filed AM or FM proposals to change the community of license: 1TV.COM, INC., Station KIKO, Facility ID 72477, BP-20100824ABA, From MIAMI, AZ, To SUPERIOR, AZ; AIRWAVES FOR JESUS, INC., Station NONE, Facility ID 176879, BMPED-20100831AAQ, From CRAIGSVILLE, WV, To WEBSTER SPRINGS, WV; ENTRAVISION HOLDINGS, LLC, Station KVVA-FM, Facility ID 1331, BPH-20100817ABA, From......

  20. 76 FR 31961 - Radio Broadcasting Services; AM or FM Proposals To Change the Community of License

    Federal Register 2010, 2011, 2012, 2013, 2014

    2011-06-02

    ...The following applicants filed AM or FM proposals to change the community of license: 1TV.COM, INC., Station KIKO, Facility ID 72477, BP-20100824ABA, From MIAMI, AZ, To APACHE JUNCTION, AZ; LA NUEVA CADENA RADIO LUZ, INC., Station KLIT, Facility ID 86722, BPED- 20110502AET, From DEL RIO, TX, To EAGLE PASS, TX; LOUT, JAMES M, Station NEW, Facility ID 170971, BMPH-20100301ABS, From PINELAND, TX,......

  1. AMS radiocarbon dating of medieval textile relics: The frocks and the pillow of St. Francis of Assisi

    NASA Astrophysics Data System (ADS)

    Fedi, M. E.; Cartocci, A.; Taccetti, F.; Mandò, P. A.

    2008-05-01

    Since natural textiles usually originate from short-lived organisms, they can represent a useful material to date samples from historical periods with a good accuracy. In this work, we present a set of radiocarbon measurements on medieval textile relics: two woollen habits and a pillow traditionally associated with St. Francis of Assisi, the saint patron of Italy. The strategy in choosing samples for radiocarbon dating is first discussed and the procedures for measurements - performed at the 3 MV Tandetron accelerator of Laboratorio di Tecniche Nucleari per i Beni Culturali (LABEC), Florence - are described; AMS results for the two frocks showed that only one of them, presently kept in the church of St. Francis in Cortona, is compatible with the Saint's period of life, as is the pillow also kept in Cortona. Another frock attributed to St. Francis appears to date from at least 80 years after his death. However, the goal of these measurements was not a bare authentication/disconfirmation of the relics; they just represent an example of how scientific analysis can integrate with humanistic studies. Indeed, AMS results, combined with a thorough analysis of the textiles typologies, confirmed the historical hypotheses based on documentary studies and on tradition. The overall conclusions contributed to the decisions taken for conservation, and have as a whole enhanced the religious importance of the relics.

  2. Radio emission from AM Herculis

    NASA Technical Reports Server (NTRS)

    Bastian, T. S.; Dulk, G. A.; Chanmugam, G.

    1985-01-01

    Observations of the quiescent microwave emission of the magnetic cataclysmic variable AM Herculis are presented. The emission, which declined from a mean value of 0.58 mJy at 4.9 GHz to about 0.3 mJy, in rough coincidence with the entry of AM Herculis into an optical low state (mid-1983), is explained in terms of optically thick gyrosynchrotron emission. It is noted that the observation of a coherent outburst at 4.9 GHz, interpreted as the result of a cyclotron maser on the red dwarf secondary, indicates that the secondary is magnetized. Possible implications are briefly explored. Comparisons between this system and other stellar continuum radio sources are made.

  3. Report on 241,242Am(n,x) surrogate cross section measurement

    SciTech Connect

    Burke, J T; Ressler, J J; Gostic, J; Henderson, R A; Bernstein, L A; Escher, J E; Bleuel, D; Kritcher, A; Matoon, C; Scielzo, N D; Stoyer, M A

    2011-02-16

    The main goal of this measurement is to determine the {sup 242}Am(n,f) and {sup 241}Am(n,f) cross sections via the surrogate {sup 243}Am. Gamma-ray data was also collected for the purpose of measuring the (n,2n) cross-sections. The experiment was conducted using the STARS/LIBERACE experimental facility located at the 88 Inch Cyclotron at Lawrence Berkeley National Laboratory the first week of February 2011. A description of the experiment and status of the data analysis follow.

  4. CologneAMS, a dedicated center for accelerator mass spectrometry in Germany

    NASA Astrophysics Data System (ADS)

    Dewald, A.; Heinze, S.; Jolie, J.; Zilges, A.; Dunai, T.; Rethemeyer, J.; Melles, M.; Staubwasser, M.; Kuczewski, B.; Richter, J.; Radtke, U.; von Blanckenburg, F.; Klein, M.

    2013-01-01

    CologneAMS is a new centre for accelerator mass spectrometry (AMS) at the University of Cologne. It has been funded by the German Research Foundation (DFG) to improve the experimental conditions especially for those German scientists that apply the AMS technique for their geologic, environmental, nuclear chemical, and nuclear astrophysical research. The new AMS-device has been built by High Voltage Engineering Europe (HVEE) and has been installed in the existing accelerator area of the Institute of Nuclear Physics. The AMS-facility is designed for the spectrometry of 10Be, 14C, 26Al, 36Cl, 41Ca, 129I in and heavy ions up to 236U and 244Pu. The central part of the AMS-facility is a 6 MV Tandetron™ accelerator. Downstream of the high energy mass spectrometer an additional switching magnet is used as a further filter element which supplies also additional ports for future extensions of the detector systems. The current status of CologneAMS and the results of the first test measurements will be presented.

  5. 7 CFR 1280.602 - Administrator, AMS.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Administrator, AMS. 1280.602 Section 1280.602... INFORMATION ORDER Procedures To Request a Referendum Definitions § 1280.602 Administrator, AMS. Administrator, AMS, means the Administrator of the Agricultural Marketing Service, or any officer or employee of...

  6. 7 CFR 1230.602 - Administrator, AMS.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Administrator, AMS. 1230.602 Section 1230.602... CONSUMER INFORMATION Procedures for the Conduct of Referendum Definitions § 1230.602 Administrator, AMS. The term Administrator, AMS, means the Administrator of the Agricultural Marketing Service, or...

  7. 7 CFR 1221.201 - Administrator, AMS.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 7 Agriculture 10 2014-01-01 2014-01-01 false Administrator, AMS. 1221.201 Section 1221.201... INFORMATION ORDER Procedures for the Conduct of Referenda Definitions § 1221.201 Administrator, AMS. Administrator, AMS, means the Administrator of the Agricultural Marketing Service, or any officer or employee...

  8. 7 CFR 1221.201 - Administrator, AMS.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 10 2011-01-01 2011-01-01 false Administrator, AMS. 1221.201 Section 1221.201... INFORMATION ORDER Procedures for the Conduct of Referenda Definitions § 1221.201 Administrator, AMS. Administrator, AMS, means the Administrator of the Agricultural Marketing Service, or any officer or employee...

  9. 7 CFR 1230.602 - Administrator, AMS.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 7 Agriculture 10 2013-01-01 2013-01-01 false Administrator, AMS. 1230.602 Section 1230.602... CONSUMER INFORMATION Procedures for the Conduct of Referendum Definitions § 1230.602 Administrator, AMS. The term Administrator, AMS, means the Administrator of the Agricultural Marketing Service, or...

  10. 7 CFR 1280.602 - Administrator, AMS.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 7 Agriculture 10 2014-01-01 2014-01-01 false Administrator, AMS. 1280.602 Section 1280.602... INFORMATION ORDER Procedures To Request a Referendum Definitions § 1280.602 Administrator, AMS. Administrator, AMS, means the Administrator of the Agricultural Marketing Service, or any officer or employee of...

  11. 7 CFR 1230.602 - Administrator, AMS.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 10 2011-01-01 2011-01-01 false Administrator, AMS. 1230.602 Section 1230.602... CONSUMER INFORMATION Procedures for the Conduct of Referendum Definitions § 1230.602 Administrator, AMS. The term Administrator, AMS, means the Administrator of the Agricultural Marketing Service, or...

  12. 7 CFR 1280.602 - Administrator, AMS.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 10 2011-01-01 2011-01-01 false Administrator, AMS. 1280.602 Section 1280.602... INFORMATION ORDER Procedures To Request a Referendum Definitions § 1280.602 Administrator, AMS. Administrator, AMS, means the Administrator of the Agricultural Marketing Service, or any officer or employee of...

  13. 7 CFR 1230.602 - Administrator, AMS.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 7 Agriculture 10 2014-01-01 2014-01-01 false Administrator, AMS. 1230.602 Section 1230.602... CONSUMER INFORMATION Procedures for the Conduct of Referendum Definitions § 1230.602 Administrator, AMS. The term Administrator, AMS, means the Administrator of the Agricultural Marketing Service, or...

  14. 7 CFR 1230.602 - Administrator, AMS.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 7 Agriculture 10 2012-01-01 2012-01-01 false Administrator, AMS. 1230.602 Section 1230.602... CONSUMER INFORMATION Procedures for the Conduct of Referendum Definitions § 1230.602 Administrator, AMS. The term Administrator, AMS, means the Administrator of the Agricultural Marketing Service, or...

  15. 7 CFR 1280.602 - Administrator, AMS.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 7 Agriculture 10 2012-01-01 2012-01-01 false Administrator, AMS. 1280.602 Section 1280.602... INFORMATION ORDER Procedures To Request a Referendum Definitions § 1280.602 Administrator, AMS. Administrator, AMS, means the Administrator of the Agricultural Marketing Service, or any officer or employee of...

  16. 7 CFR 1221.201 - Administrator, AMS.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 7 Agriculture 10 2012-01-01 2012-01-01 false Administrator, AMS. 1221.201 Section 1221.201... INFORMATION ORDER Procedures for the Conduct of Referenda Definitions § 1221.201 Administrator, AMS. Administrator, AMS, means the Administrator of the Agricultural Marketing Service, or any officer or employee...

  17. 7 CFR 1280.602 - Administrator, AMS.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 7 Agriculture 10 2013-01-01 2013-01-01 false Administrator, AMS. 1280.602 Section 1280.602... INFORMATION ORDER Procedures To Request a Referendum Definitions § 1280.602 Administrator, AMS. Administrator, AMS, means the Administrator of the Agricultural Marketing Service, or any officer or employee of...

  18. 7 CFR 1221.201 - Administrator, AMS.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 7 Agriculture 10 2013-01-01 2013-01-01 false Administrator, AMS. 1221.201 Section 1221.201... INFORMATION ORDER Procedures for the Conduct of Referenda Definitions § 1221.201 Administrator, AMS. Administrator, AMS, means the Administrator of the Agricultural Marketing Service, or any officer or employee...

  19. Content-Based Networking: DTN, AMS, Sharednet

    NASA Technical Reports Server (NTRS)

    Burleigh, Scott

    2006-01-01

    A detailed viewgraph presentation on DTN, AMS, and Sharednet content-based networking is shown. The contents include: 1) DARPA Content-Based Networking Summary of Requirements; 2) Concept; 3) Key Features of AMS; 4) Overview of Sharednet; 5) SharedNet Deployment History; 6) SharedNet AMS DTN; 7) Detailed Structure; and 8) Bottom line.

  20. 47 CFR 1.10004 - What am I allowed to do if I am approved?

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 47 Telecommunication 1 2010-10-01 2010-10-01 false What am I allowed to do if I am approved? 1.10004 Section 1.10004 Telecommunication FEDERAL COMMUNICATIONS COMMISSION GENERAL PRACTICE AND PROCEDURE International Bureau Filing System § 1.10004 What am I allowed to do if I am approved? If you are approved...

  1. 47 CFR 1.10004 - What am I allowed to do if I am approved?

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 47 Telecommunication 1 2011-10-01 2011-10-01 false What am I allowed to do if I am approved? 1.10004 Section 1.10004 Telecommunication FEDERAL COMMUNICATIONS COMMISSION GENERAL PRACTICE AND PROCEDURE International Bureau Filing System § 1.10004 What am I allowed to do if I am approved? If you are approved...

  2. A preliminary study of direct 10Be2+ counting in AMS using the super-halogen anion BeF3-

    NASA Astrophysics Data System (ADS)

    Fu, Yun-Chong; Zhang, Li; Zhou, Wei-Jian; Zhao, Xiao-Lei; Wu, Zhen-Kun; Zhao, Guo-Qing; Liu, Qi; Lu, Xue-Feng; Zhao, Wen-Nian; Huang, Chun-Hai

    2015-10-01

    The key to effective 10Be measurements by AMS is to efficiently suppress the interference of the isobar 10B and at the same time optimize 10Be transmission. In this work, a new approach of measuring 10Be by AMS has been studied. It uses the super-halogen anion of beryllium, BeF3-, which inherently suppresses 10B interference by nearly 5 orders of magnitude because the accompanying BF3- anion is rarely formed. The resulting 10B suppression factor is not as high as that achieved with energy degrader foils, but the 10B and 10Be separation in the final ionization detector was found to result in sufficient total 10B suppression for 10Be2+ to be counted directly at ∼6 MeV energies. Although the stripping yield from 10BeF3- to 10Be2+ is not as large as that from 10BeO-, this inefficiency is compensated by avoiding the reduction in transmission due to charge fraction splitting and optical transmission losses after the degrader foil. This paper summarizes our first observation of the direct 10Be2+ counting approach using the 3 MV multi-element system at the Xi'an AMS.

  3. The Radiolysis of AmVI Solutions

    SciTech Connect

    Bruce J. Mincher

    2013-06-01

    The reduction of bismuthate-produced AmVI by 60Co gamma-rays was measured using post-irradiation UV/Vis spectroscopy. The reduction of AmVI by radiolysis was rapid, producing AmV as the sole product. Relatively low absorbed doses in the ~0.3 kGy range quantitatively reduced a solution of 2.5 x 10-4 M AmVI. The addition of bismuthate to samples during irradiation did not appear to protect AmVI from radiolytic reduction during these experiments. It was also shown here that AmV is very stable toward radiation. The quantitative reduction of the AmVI concentration here corresponds to 1.4 hours of exposure to a process solution, however the actual americium concentrations will be higher and the expected contact times short when using centrifugal contactors. Thus, the reduction rate found in these initial experiments may not be excessive.

  4. Actinide measurements by AMS using fluoride matrices

    NASA Astrophysics Data System (ADS)

    Cornett, R. J.; Kazi, Z. H.; Zhao, X.-L.; Chartrand, M. G.; Charles, R. J.; Kieser, W. E.

    2015-10-01

    Actinides can be measured by alpha spectroscopy (AS), mass spectroscopy or accelerator mass spectrometry (AMS). We tested a simple method to separate Pu and Am isotopes from the sample matrix using a single extraction chromatography column. The actinides in the column eluent were then measured by AS or AMS using a fluoride target matrix. Pu and Am were coprecipitated with NdF3. The strongest AMS beams of Pu and Am were produced when there was a large excess of fluoride donor atoms in the target and the NdF3 precipitates were diluted about 6-8 fold with PbF2. The measured concentrations of 239,240Pu and 241Am agreed with the concentrations in standards of known activity and with two IAEA certified reference materials. Measurements of 239,240Pu and 241Am made at A.E. Lalonde AMS Laboratory agree, within their statistical uncertainty, with independent measurements made using the IsoTrace AMS system. This work demonstrated that fluoride targets can produce reliable beams of actinide anions and that the measurement of actinides using fluorides agree with published values in certified reference materials.

  5. Low energy AMS of americium and curium

    NASA Astrophysics Data System (ADS)

    Christl, Marcus; Dai, Xiongxin; Lachner, Johannes; Kramer-Tremblay, Sheila; Synal, Hans-Arno

    2014-07-01

    Accelerator mass spectrometry (AMS) has evolved over the past years as one of the most sensitive, selective, and robust techniques for actinide analyses. While analyses of U and Pu isotopes have already become routine at the ETH Zurich 0.5 MV AMS system "Tandy", there is an increasing demand for highly sensitive analyses of the higher actinides such as Am and Cm for bioassay applications and beyond. In order to extend the actinide capabilities of the compact ETH Zurich AMS system and to develop new, more sensitive bioassay routines, a pilot study was carried out. The aim was to investigate and document the performance and the potential background of Am and Cm analyses with low energy AMS. Our results show that 241Am and Cm isotopes can be determined relative to a 243Am tracer if samples and AMS standards are prepared identically with regard to the matrix elements, in which the sample is dispersed. In this first test, detection limits for Cm and Am isotopes are all in the sub-femtogram range and even below 100 ag for Cm isotopes. In a systematic background study in the mass range of the Cm isotopes, two formerly unknown metastable triply charged Th molecules were found on amu(244) and amu(248). The presence of such a background is not a principal problem for AMS if the stripper pressure is increased accordingly. Based on our first results, we conclude that ultra-trace analyses of Am and Cm isotopes for bioassay are very well possible with low energy AMS.

  6. AM1* parameters for manganese and iron.

    PubMed

    Kayi, Hakan; Clark, Timothy

    2010-06-01

    We report the parameterization of AM1* for the elements manganese and iron. The basis sets for both metals contain one set each of s-, p- and d-orbitals. AM1* parameters are now available for H, C, N, O and F (which use the original AM1 parameters), Al, Si, P, S, Cl, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Br, Zr, Mo, I and Au. The performance and typical errors of AM1* are discussed for Mn and Fe, and are compared with available NDDO Hamiltonians. PMID:19937261

  7. EOS-AM1 Nickel Hydrogen Cell

    NASA Technical Reports Server (NTRS)

    Bennett, Charles W.; Keys, Denney J.; Rao, Gopalakrishna M.; Wannemacher, Hari E.; Vaidyanathan, Harry

    1997-01-01

    This paper reports the interim results of the Earth Observing System AM-1 project (EOS-AM-1) nickel hydrogen cell life test being conducted under contract to National Aeronautics and Space Administration (NASA) Goddard Space Flight Center (GSFC) at the Lockheed Martin Missile and Space (LMMS) facility in East Windsor, NJ; and at COMSAT Labs., Clarksburg, MD. The purpose of die tests is to verify that the EOS-AM-1 cell design can meet five years of real-time Low Earth Orbit (LEO) cycling. The tests include both real-time LEO and accelerated stress tests. At LMMS, the first real-time LEO simulated 99 minute orbital cycle started on February 7, 1994 and the test has been running continuously since that time, with 18,202 LEO cycles completed as of September 1, 1997. Each cycle consists of a 64 minute charge (VT at 1.507 volts per cell, 1.06 C/D ratio, followed by 0.6 ampere trickle charge) and a 35 minute constant power discharge at 177 watts (22.5% DOD). At COMSAT, the accelerated stress test consists of 90 minute orbital cycles at 60% DOD with a 30 minute discharge at 60 amperes and a 60 minute charge at 40 amperes (VT at 1.54 volts per cell to 1.09 C/D ratio, followed by 0.6 ampere trickle charge). The real-time LEO life test battery consists of seven, 50AH (nameplate rating) Eagle-Picher, Inc. (EPI) Mantech cells manufactured into three, 3-cell pack assemblies (there are two place holder cells that are not part of the life test electrical circuit). The test pack is configured to simulate the conductive thermal design of the spacecraft battery, including: conductive aluminum sleeves, 3-cell pack aluminum baseplate, and honeycomb panel all mounted to a liquid (-5 C) cold plate. The entire assembly is located in a thermal chamber operating at +30 C. The accelerated stress test unit consists of five cells mounted in machined aluminum test sleeves and is operating at +10 C. The real-time LEO life test battery has met all performance requirements through the first 18

  8. 30 CFR 285.601 - When am I required to submit my plans to MMS?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 30 Mineral Resources 2 2010-07-01 2010-07-01 false When am I required to submit my plans to MMS? 285.601 Section 285.601 Mineral Resources MINERALS MANAGEMENT SERVICE, DEPARTMENT OF THE INTERIOR OFFSHORE RENEWABLE ENERGY ALTERNATE USES OF EXISTING FACILITIES ON THE OUTER CONTINENTAL SHELF Plans...

  9. 40 CFR 62.14420 - Am I required to have a trained and qualified operator?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 8 2010-07-01 2010-07-01 false Am I required to have a trained and qualified operator? 62.14420 Section 62.14420 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY... able to be at your facility within 1 hour. The trained and qualified HMIWI operator may operate...

  10. Cosmic-Ray Studies with an Alpha Magnetic Spectrometer (AMS Detector) on the International Space Station

    SciTech Connect

    Plyaskin, V.V.

    2005-01-01

    A brief description of the physics research program implemented with an alpha magnetic spectrometer (AMS detector) by a large-scale international collaboration on board the International Space Station is presented. The features of the experimental facility under construction are given, along with some results obtained during the test flight of the prototype spectrometer on board a space shuttle.

  11. 40 CFR 60.4230 - Am I subject to this subpart?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Ignition Internal Combustion Engines What This Subpart Covers § 60.4230 Am I subject to this subpart? (a... spark ignition (SI) internal combustion engines (ICE) as specified in paragraphs (a)(1) through (6) of... facilities with internal combustion engines that are acting as temporary replacement units and that...

  12. 40 CFR 60.4230 - Am I subject to this subpart?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Ignition Internal Combustion Engines What This Subpart Covers § 60.4230 Am I subject to this subpart? (a... spark ignition (SI) internal combustion engines (ICE) as specified in paragraphs (a)(1) through (6) of... facilities with internal combustion engines that are acting as temporary replacement units and that...

  13. Preliminary evaluation of Am/Cm melter feed preparation process upset recovery flowsheets

    SciTech Connect

    Stone, M.E.

    2000-01-20

    This document summarizes the results from the development of flowsheets to recover from credible processing errors specified in TTR 99-MNSS/SE-006. The proposed flowsheets were developed in laboratory scale equipment and will be utilized with minor modifications for full scale demonstrations in the Am/Cm Pilot Facility.

  14. A&M. Jet engine test building (TAN609). Exterior. Equipment inside rollup ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    A&M. Jet engine test building (TAN-609). Exterior. Equipment inside roll-up door is blowdown test facility, part of loft-semiscale program. Note width of central section serving as blast protection for operator on left side. Photographer: Cahoon. Date: July 22, 1965. INEEL negative no. 65-3703 - Idaho National Engineering Laboratory, Test Area North, Scoville, Butte County, ID

  15. Photometry and dynamics of the minor mergers AM 1228-260 and AM 2058-381

    NASA Astrophysics Data System (ADS)

    Hernandez-Jimenez, J. A.; Pastoriza, M. G.; Bonatto, C.; Rodrigues, I.; Krabbe, A. C.; Winge, Cláudia

    2015-08-01

    We investigate interaction effects on the dynamics and morphology of the galaxy pairs AM 2058-381 and AM 1228-260. This work is based on r' images and long-slit spectra obtained with the Gemini Multi-Object Spectrograph at the Gemini South Telescope. The luminosity ratio between the main (AM 2058A) and secondary (AM 2058B) components of the first pair is a factor of ˜ 5, while for the other pair, the main (AM 1228A) component is 20 times more luminous than the secondary (AM 1228B). The four galaxies have pseudo-bulges, with a Sérsic index n < 2. Their observed radial velocities profiles (RVPs) present several irregularities. The receding side of the RVP of AM 2058A is displaced with respect to the velocity field model, while there is a strong evidence that AM 2058B is a tumbling body, rotating along its major axis. The RVPs for AM 1228A indicate a misalignment between the kinematic and photometric major axes. The RVP for AM 1228B is quite perturbed, very likely due to the interaction with AM 1228A. NFW halo parameters for AM 2058A are similar to those of the Milky Way and M 31. The halo mass of AM 1228A is roughly 10 per cent that of AM 2058A. The mass-to-light (M/L) of AM 2058 agrees with the mean value derived for late-type spirals, while the low M/L for AM 1228A may be due to the intense star formation ongoing in this galaxy.

  16. 47 CFR 1.10004 - What am I allowed to do if I am approved?

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 47 Telecommunication 1 2012-10-01 2012-10-01 false What am I allowed to do if I am approved? 1.10004 Section 1.10004 Telecommunication FEDERAL COMMUNICATIONS COMMISSION GENERAL PRACTICE AND PROCEDURE Grants by Random Selection International Bureau Filing System § 1.10004 What am I allowed to do if I...

  17. 47 CFR 1.10004 - What am I allowed to do if I am approved?

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 47 Telecommunication 1 2014-10-01 2014-10-01 false What am I allowed to do if I am approved? 1.10004 Section 1.10004 Telecommunication FEDERAL COMMUNICATIONS COMMISSION GENERAL PRACTICE AND PROCEDURE Grants by Random Selection International Bureau Filing System § 1.10004 What am I allowed to do if I...

  18. 47 CFR 1.10004 - What am I allowed to do if I am approved?

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 47 Telecommunication 1 2013-10-01 2013-10-01 false What am I allowed to do if I am approved? 1.10004 Section 1.10004 Telecommunication FEDERAL COMMUNICATIONS COMMISSION GENERAL PRACTICE AND PROCEDURE Grants by Random Selection International Bureau Filing System § 1.10004 What am I allowed to do if I...

  19. A&M. Plot plan of administration and A&M areas. Shows relationships ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    A&M. Plot plan of administration and A&M areas. Shows relationships among administration buildings and to A&M building (TAN-607), railroad turntable. Ralph M. Parsons 902-2&3-ANP-U 3. Date: December 1952. INEEL index code no. 032-0100-00-693-106690 - Idaho National Engineering Laboratory, Test Area North, Scoville, Butte County, ID

  20. Results from the first international AM0

    NASA Technical Reports Server (NTRS)

    Mueller, R. L.; Jenkins, P.; Brinker, D.; Scheiman, D.; Anspaugh, B.; Gomez, T.; Lisbona, E. F.; Aoyama, K.; Imaizumi, M.; Pichetto, V.; Yiqiang, Y.; Goodbody, C.

    2003-01-01

    AM0 solar cell calibration laboratories throughout the world are working together to create standard methods for AM0 calibration. In an effort to compare the results of different calibration methods, five different laboratories calibrated GaAs and Si solar cells. The results of this inter-comparison are presented herein.

  1. Beneficial uses of /sup 241/Am

    SciTech Connect

    Mangeng, C.A.; Thayer, G.R.

    1984-05-01

    This report assesses the uses of /sup 241/Am and the associated costs and supply. The study shows that /sup 241/Am-fueled radioisotope thermoelectric generators in the range of 1 to 5 W electrical provide the most promising use of kilogram amounts of this isotope. For medical uses, where purity is essential, irradiation of /sup 241/Am can produce 97% pure /sup 238/Pu at $21,000/g. Using a pyro-metallurgical process, /sup 241/Am could be recovered from molten salt extraction (MSE) residues at an estimated incremental cost of $83/g adjusted to reflect the disposal costs of waste products. This cost of recovery is less than the $300/g cost for disposal of the /sup 241/Am contained in the MSE residues.

  2. Health Facilities

    MedlinePlus

    Health facilities are places that provide health care. They include hospitals, clinics, outpatient care centers, and specialized care centers, ... psychiatric care centers. When you choose a health facility, you might want to consider How close it ...

  3. Automatic Mode Switch (AMS) Causes Less Synchronization

    PubMed Central

    Jorat, Mohammadvahid; Nikoo, Mohammadhossein

    2016-01-01

    Introduction: Cardiac resynchronization devices are part of modern heart failure management. After implantation, we analyze and program devices in an attempt to ensure their success. Biventricular pacing should be 98% or more for the lowest mortality and best symptom improvement. Case Presentation: In this case series, we present a combination of far field sensing and automatic mode switching (AMS) in six patients. It is found that this combination causes ventricular sensing (VS) episodes with wide QRS and no synchronization. We turn off the AMS and alleviate the problem. Conclusions: Switching AMS off may increase biventricular pacing in some patients. PMID:26949695

  4. Computing Strategy of the AMS Experiment

    NASA Astrophysics Data System (ADS)

    Choutko, V.; Egorov, A.; Eline, A.; Shan, B. S.

    2015-12-01

    The Alpha Magnetic Spectrometer (AMS) is a high energy physics experiment operating on board of the International Space Station (ISS). The detector was installed on ISS in May 2011 and is expected to continuously take cosmic rays data through Year 2024 and beyond. The computing strategy of the AMS experiment is discussed in the paper, including software design, data processing, data reconstruction and simulation, detector performance evaluation, and data production overview. In particular, parallelization of reconstruction and simulation of AMS data is discussed in detail.

  5. Determination of plutonium in environmental samples by AMS and alpha spectrometry.

    PubMed

    Hrnecek, E; Steier, P; Wallner, A

    2005-01-01

    Environmental samples from nuclear weapons test sites at the atolls of Mururoa and Fangataufa (French Polynesia, south Pacific) have been analyzed for their content of plutonium isotopes by applying the independent techniques of decay counting (Alpha Spectrometry) and accelerator mass spectrometry (AMS). Here, we propose the combination of both techniques which results in a maximum of information on the isotopic signature of Pu in environmental samples. Plutonium was chemically separated from the bulk material by anion exchange. (242)Pu was used as an internal standard for both AMS and alpha spectrometry. The samples for alpha spectrometry were prepared by micro-precipitation with NdF(3). After alpha spectrometry, the samples were reprocessed for AMS. Pu was co-precipitated with Fe(OH)(3) and finally, solid samples were prepared. At the VERA (Vienna Environmental Research Accelerator) facility, the various Pu isotopes were separated by their isotopic masses and quantified by the AMS technique. A good agreement of the results obtained from the AMS measurements was found with those obtained from Alpha Spectrometry. Overall, the data agree on average within 10% of each other. Isotope ratios for (238)Pu, (239)Pu and (240)Pu can be extracted from our investigations. Alpha spectrometry delivers data for the (238)Pu and the combination of ((239+240))Pu concentrations in those samples. In addition, the AMS technique provides information on the individual concentrations of (240)Pu and (239)Pu. PMID:15982894

  6. Space Station Live: First Findings from the AMS

    NASA Video Gallery

    PAO Officer Kyle Herring interviews Alpha Magnetic Spectrometer (AMS) Project Manager Trent Martin about the first findings from the AMS. A small team from Johnson Space Center collaborates with AM...

  7. A new and compact system at the AMS laboratory in Bucharest

    NASA Astrophysics Data System (ADS)

    Stan-Sion, C.; Enachescu, M.; Petre, A. R.; Simion, C. A.; Calinescu, C. I.; Ghita, D. G.

    2015-10-01

    AMS research started more than 15 years ago at our National Institute for Physics and Nuclear Engineering (IFIN-HH), Bucharest. A first facility was constructed based on our multipurpose 9 MV tandem accelerator and was upgraded several times. In May 2012 a new Cockcroft Walton type 1 MV HVEE tandetron AMS system, was commissioned. Two chemistry laboratories were constructed and are routinely performing the target preparation for carbon dating and for other isotope applications such as for geology, environment physics, medicine and forensic physics. Performance parameters of the new system are shown.

  8. A high output, large acceptance injector for the NOSAMS Tandetron AMS system

    NASA Astrophysics Data System (ADS)

    Longworth, Brett E.; von Reden, Karl F.; Long, Pat; Roberts, Mark L.

    2015-10-01

    We have completed a major upgrade of the National Ocean Sciences AMS Facility (NOSAMS) Tandetron AMS system in two stages. First, the simultaneous (recombinator) injector was replaced with a fast-cycling sequential injector and changes to the low-energy acceleration section. Data after the injector commissioning show an improvement in background, with mean machine background (commercial graphite) of Fm 0.0004 (62 ka). Second, we replaced the original ion source with a high-output 40 sample MCSNICS source. This improved beam currents and raw ratio fractionation, and increased sample to detection efficiency fivefold.

  9. Challenge of COPD: Am I at Risk?

    MedlinePlus

    ... please turn JavaScript on. Feature: The Challenge of COPD Am I at Risk? Past Issues / Fall 2014 ... or the American Lung Association's COPD information section. COPD Learn More Breathe Better ® Program The COPD Learn ...

  10. AMS applied to Hiroshima and Chernobyl dosimetry

    SciTech Connect

    Straume, T.; Marchetti, A.A.; Anspaugh, L.R.

    1995-12-01

    Two projects employing AMS are summarized and updated. One project employs AMS to measure {sup 36}Cl in concrete and other mineral samples from Hiroshima and Nagasaki to help reconstruct neutron fluences received by the atom-bomb survivors. In this project, we have demonstrated a large discrepancy between the neutron activation measured in Hiroshima and predictions based on the current dosimetry system. This discrepancy has practical implications for radiation risk assessment and radiation protection standards. The other project employs AMS to measure {sup 129}I in soil and other environmental samples from Belarus, Ukraine, and Russia. This is a proof-of-principle study to determine if the long lived {sup 129}I isotope (half life, 16 x 10{sup 6} y) measured by AMS can be used to reconstruct deposition of the short lived {sup 131}I isotope from the 1986 Chernobyl reactor accident. This is required because {sup 131}I disappeared before adequate measurements could be made.

  11. Space Station Live: Installing the AMS

    NASA Video Gallery

    PAO Officer Kyle Herring interviews NASA astronaut Mike Fincke about his contribution during STS-134, the shuttle mission that installed the Alpha Magnetic Spectrometer (AMS) in May 2011. As a miss...

  12. 78 FR 48029 - Improving Chemical Facility Safety and Security

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-08-07

    .... [FR Doc. 2013-19220 Filed 8-6-13; 8:45 am] Billing code 3295-F3 ... Documents#0;#0; ] Executive Order 13650 of August 1, 2013 Improving Chemical Facility Safety and Security By... departments and agencies (agencies) with regulatory authority to further improve chemical facility safety...

  13. A&M. Aerial view of turntable and A&M building (TAN607). Pool, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    A&M. Aerial view of turntable and A&M building (TAN-607). Pool, hot shop, cold shop, and machine shop are completed. Track leading to left edge of view goes to the IET. Ancient lake shoreline and berm beyond A&M building. Camera facing east. Administrative buildings beyond berm. Date: November 24, 1954. INEEL negative no. 13205 - Idaho National Engineering Laboratory, Test Area North, Scoville, Butte County, ID

  14. Study of Neutron-Induced Fission Cross Sections of U, Am, and Cm at n{sub T}OF

    SciTech Connect

    Milazzo, P. M.; Abbondanno, U.; Belloni, F.; Fujii, K.; Aerts, G.; Andriamonje, S.; Berthoumieux, E.; Dridi, W.; Ferrant, L.; Gunsing, F.; Pancin, J.; Perrot, L.; Plukis, A.; Stephan, C.; Tassan-Got, L.; Alvarez-Velarde, F.; Cano-Ott, D.

    2010-08-04

    Neutron induced fission cross sections of several isotopes have been measured at the CERN n{sub T}OF spallation neutron facility. Between them some measurements involve isotopes ({sup 233}U, {sup 241}Am, {sup 243}Am, {sup 245}Cm) relevant for applications to nuclear technologies. The n{sub T}OF facility delivers neutrons with high instantaneous flux and in a wide energy range, from thermal up to 250 MeV. The experimental apparatus consists of an ionization chamber that discriminates fission fragments and {alpha} particles coming from natural radioactivity of the samples. All the measurements were performed referring to the standard cross section of {sup 235}U.

  15. An accelerator facility for WDM, HEDP, and HIF investigations in Nazarbayev University

    NASA Astrophysics Data System (ADS)

    Kaikanov, M.; Baigarin, K.; Tikhonov, A.; Urazbayev, A.; Kwan, J. W.; Henestroza, E.; Remnev, G.; Shubin, B.; Stepanov, A.; Shamanin, V.; Waldron, W. L.

    2016-05-01

    Nazarbayev University (NU) in Astana, Kazakhstan, is planning to build a new multi-MV, ∼10 to several hundred GW/cm2 ion accelerator facility which will be used in studies of material properties at extreme conditions relevant to ion-beam-driven inertial fusion energy, and other applications. Two design options have been considered. The first option is a 1.2 MV induction linac similar to the NDCX-II at LBNL, but with modifications, capable of heating a 1 mm spot size thin targets to a few eV temperature. The second option is a 2 - 3 MV, ∼200 kA, single-gap-diode proton accelerator powered by an inductive voltage adder. The high current proton beam can be focused to ∼1 cm spot size to obtain power densities of several hundred GW/cm2, capable of heating thick targets to temperatures of tens of eV. In both cases, a common requirement to achieving high beam intensity on target and pulse length compression is to utilize beam neutralization at the final stage of beam focusing. Initial experiments on pulsed ion beam neutralization have been carried out on a 0.3 MV, 1.5 GW single-gap ion accelerator at Tomsk Polytechnic University with the goal of creating a plasma region in front of a target at densities exceeding ∼1012 cm-3.

  16. Study on migration behaviour of 237Np and 241Am in near-surface environments.

    PubMed

    Tanaka, Tadao; Ya-Anant, Nanthavan

    2011-07-01

    Laboratory-scale experiments were performed to investigate migration behaviour of (237)Np and (241)Am, which were deposited onto the ground surface from spent fuel reprocessing facilities. Migration experiments by column method were conducted for a sandy soil and a reddish soil by varying the volume of eluting solution. There seemed to be two chemical species of (237)Np in the sandy soil column: one is cationic and the other is particulate form. The particulates moved without significant interaction with the sandy soil. The sorption of cationic (237)Np was controlled by both a reversible ion-exchange reaction and irreversible reactions. Most of (241)Am was formed into rather large particulates and trapped in the sandy soil column. The (237)Np and (241)Am loaded into the reddish soil column moved deeper with increasing eluting volume. The sorption was mainly controlled by ion-exchange reaction. The migration behaviour might be evaluated by the distribution coefficient. PMID:21571738

  17. RCRA FACILITIES

    EPA Science Inventory

    Points represent facilities that are regulated by the EPA under the Resource Conservation and Recovery Act (RCRA). Facilities regulated under RCRA generate, dispose of, treate or transport hazardous waste. RCRA is a law enacted by Congress in 1976 and amended in 1984 to include ...

  18. 47 CFR 73.128 - AM stereophonic broadcasting.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 47 Telecommunication 4 2013-10-01 2013-10-01 false AM stereophonic broadcasting. 73.128 Section 73.128 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.128 AM stereophonic broadcasting. (a) An Am broadcast station may, without specific authority from...

  19. 47 CFR 73.128 - AM stereophonic broadcasting.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 47 Telecommunication 4 2012-10-01 2012-10-01 false AM stereophonic broadcasting. 73.128 Section 73.128 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.128 AM stereophonic broadcasting. (a) An Am broadcast station may, without specific authority from...

  20. Determination of the242 m Am nuclear moments

    NASA Astrophysics Data System (ADS)

    Bekk, K.; Göring, S.; Kälber, W.; Meisel, G.; Rebel, H.; Sameh, A. Ali

    1988-09-01

    The hyperfine structure of Am atoms was investigated in an atomic beam by laser spectroscopy. The observed splittings were evaluated with respect to the magnetic dipole and electric quadrupole moments of242 m Am. The results are: μ I (242 m Am)=+0.97(5)nm, Q(242 m Am)=+6.5(2.0)b.

  1. 47 CFR 1.30003 - Installations on an AM antenna.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 47 Telecommunication 1 2014-10-01 2014-10-01 false Installations on an AM antenna. 1.30003 Section... Random Selection Disturbance of AM Broadcast Station Antenna Patterns § 1.30003 Installations on an AM antenna. (a) Installations on a nondirectional AM tower. When antennas are installed on a...

  2. 47 CFR 73.14 - AM broadcast definitions.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 47 Telecommunication 4 2013-10-01 2013-10-01 false AM broadcast definitions. 73.14 Section 73.14 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.14 AM broadcast definitions. AM broadcast band. The band of frequencies extending from 535 to 1705 kHz....

  3. 47 CFR 73.14 - AM broadcast definitions.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 47 Telecommunication 4 2012-10-01 2012-10-01 false AM broadcast definitions. 73.14 Section 73.14 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.14 AM broadcast definitions. AM broadcast band. The band of frequencies extending from 535 to 1705 kHz....

  4. 47 CFR 73.14 - AM broadcast definitions.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 47 Telecommunication 4 2014-10-01 2014-10-01 false AM broadcast definitions. 73.14 Section 73.14 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.14 AM broadcast definitions. AM broadcast band. The band of frequencies extending from 535 to 1705 kHz....

  5. 47 CFR 73.44 - AM transmission system emission limitations.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 47 Telecommunication 4 2012-10-01 2012-10-01 false AM transmission system emission limitations. 73... SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.44 AM transmission system emission limitations... with the ANSI/EIA-549-1988, NRSC-1 AM Preemphasis/Deemphasis and Broadcast Transmission...

  6. 47 CFR 73.44 - AM transmission system emission limitations.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 47 Telecommunication 4 2011-10-01 2011-10-01 false AM transmission system emission limitations. 73... SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.44 AM transmission system emission limitations... with the ANSI/EIA-549-1988, NRSC-1 AM Preemphasis/Deemphasis and Broadcast Transmission...

  7. 47 CFR 73.44 - AM transmission system emission limitations.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 47 Telecommunication 4 2010-10-01 2010-10-01 false AM transmission system emission limitations. 73... SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.44 AM transmission system emission limitations... with the ANSI/EIA-549-1988, NRSC-1 AM Preemphasis/Deemphasis and Broadcast Transmission...

  8. 47 CFR 73.44 - AM transmission system emission limitations.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 47 Telecommunication 4 2013-10-01 2013-10-01 false AM transmission system emission limitations. 73... SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.44 AM transmission system emission limitations... with the ANSI/EIA-549-1988, NRSC-1 AM Preemphasis/Deemphasis and Broadcast Transmission...

  9. 47 CFR 73.44 - AM transmission system emission limitations.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 47 Telecommunication 4 2014-10-01 2014-10-01 false AM transmission system emission limitations. 73... SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.44 AM transmission system emission limitations... with the ANSI/EIA-549-1988, NRSC-1 AM Preemphasis/Deemphasis and Broadcast Transmission...

  10. AMS: Area Message Service for SLC

    SciTech Connect

    Crane, M.; Mackenzie, R.; Millsom, D.; Zelazny, M.

    1993-04-01

    The Area Message Service (AMS) is a TCP/IP based messaging service currently in use at SLAC. A number of projects under development here at SLAC require and application level interface to the 4.3BSD UNIX socket level communications functions using TCP/IP over ethernet. AMS provides connection management, solicited message transfer, unsolicited message transfer, and asynchronous notification of pending messages. AMS is written completely in ANSI `C` and is currently portable over three hardware/operating system/network manager platforms, VAX/VMS/Multinet, PC/MS-DOS/Pathworks, VME 68K/pSOS/pNA. The basic architecture is a client-server connection where either end of the interface may be the server. This allows for connections and data flow to be initiated from either end of the interface. Included in the paper are details concerning the connection management, the handling of the multi-platform code, and the implementation process.

  11. Health Facilities

    MedlinePlus

    Health facilities are places that provide health care. They include hospitals, clinics, outpatient care centers, and specialized care centers, such as birthing centers and psychiatric care centers. When you ...

  12. Facility Planning.

    ERIC Educational Resources Information Center

    Graves, Ben E.

    1984-01-01

    This article reviews recommendations on policies for leasing surplus school space made during the Council of Educational Facility Planners/International conference. A case study presentation of a Seattle district's use of lease agreements is summarized. (MJL)

  13. Detection limits of pollutants in water for PGNAA using Am Be source

    NASA Astrophysics Data System (ADS)

    Khelifi, R.; Amokrane, A.; Bode, P.

    2007-09-01

    A basic PGNAA facility with an Am-Be neutron source is described to analyze the pollutants in water. The properties of neutron flux were determined by MCNP calculations. In order to determine the efficiency curve of a HPGe detector, the prompt-gamma rays from chlorine were used and an exponential curve was fitted. The detection limits for typical water sample are also estimated using the statistical fluctuations of the background level in the areas of recorded the prompt-gamma spectrum.

  14. Production facilities

    SciTech Connect

    Not Available

    1989-01-01

    This book presents a cross section of different solutions to the many unique production problems operators face. Sections address benefit vs. cost options for production facility designs, oil and gas separation processes and equipment, oil treating and desalting systems, and water treating methods and equipment. Papers were selected to give an overall view of factors involved in optimizing the design of cost-effective production facilities.

  15. Subsurface stratigraphy and structure of A/M area at the Savannah River Site, Aiken County, South Carolina. Final report

    SciTech Connect

    Fallaw, W.C.; Sims, W.R.; Haselow, J.S.

    1991-08-01

    This report is a study of the stratigraphy and structure of the A/M Area Hazardous Waste Management Facility Post-Closure Care Permit process on the Savannah River Site. The data from the lithologic and geophysical logs of 93 wells is the basis of this analysis.

  16. Subsurface stratigraphy and structure of A/M area at the Savannah River Site, Aiken County, South Carolina

    SciTech Connect

    Fallaw, W.C.; Sims, W.R.; Haselow, J.S.

    1991-08-01

    This report is a study of the stratigraphy and structure of the A/M Area Hazardous Waste Management Facility Post-Closure Care Permit process on the Savannah River Site. The data from the lithologic and geophysical logs of 93 wells is the basis of this analysis.

  17. 7 CFR 1220.601 - Administrator, AMS.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 10 2010-01-01 2010-01-01 false Administrator, AMS. 1220.601 Section 1220.601 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING AGREEMENTS AND ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE SOYBEAN PROMOTION, RESEARCH,...

  18. 7 CFR 1220.601 - Administrator, AMS.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 7 Agriculture 10 2014-01-01 2014-01-01 false Administrator, AMS. 1220.601 Section 1220.601 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING AGREEMENTS AND ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE SOYBEAN PROMOTION, RESEARCH,...

  19. 7 CFR 1220.601 - Administrator, AMS.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 7 Agriculture 10 2012-01-01 2012-01-01 false Administrator, AMS. 1220.601 Section 1220.601 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING AGREEMENTS AND ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE SOYBEAN PROMOTION, RESEARCH,...

  20. 7 CFR 1220.601 - Administrator, AMS.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 7 Agriculture 10 2013-01-01 2013-01-01 false Administrator, AMS. 1220.601 Section 1220.601 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING AGREEMENTS AND ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE SOYBEAN PROMOTION, RESEARCH,...

  1. 7 CFR 1220.601 - Administrator, AMS.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 10 2011-01-01 2011-01-01 false Administrator, AMS. 1220.601 Section 1220.601 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (MARKETING AGREEMENTS AND ORDERS; MISCELLANEOUS COMMODITIES), DEPARTMENT OF AGRICULTURE SOYBEAN PROMOTION, RESEARCH,...

  2. 7 CFR 65.105 - AMS.

    Code of Federal Regulations, 2014 CFR

    2014-01-01

    ... 7 Agriculture 3 2014-01-01 2014-01-01 false AMS. 65.105 Section 65.105 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing Practices), DEPARTMENT OF AGRICULTURE (CONTINUED) REGULATIONS AND STANDARDS UNDER THE AGRICULTURAL MARKETING ACT OF 1946 AND THE EGG...

  3. 7 CFR 65.105 - AMS.

    Code of Federal Regulations, 2011 CFR

    2011-01-01

    ... 7 Agriculture 3 2011-01-01 2011-01-01 false AMS. 65.105 Section 65.105 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing Practices), DEPARTMENT OF AGRICULTURE (CONTINUED) REGULATIONS AND STANDARDS UNDER THE AGRICULTURAL MARKETING ACT OF 1946 AND THE EGG...

  4. 7 CFR 65.105 - AMS.

    Code of Federal Regulations, 2010 CFR

    2010-01-01

    ... 7 Agriculture 3 2010-01-01 2010-01-01 false AMS. 65.105 Section 65.105 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing Practices), DEPARTMENT OF AGRICULTURE (CONTINUED) REGULATIONS AND STANDARDS UNDER THE AGRICULTURAL MARKETING ACT OF 1946 AND THE EGG...

  5. 7 CFR 65.105 - AMS.

    Code of Federal Regulations, 2012 CFR

    2012-01-01

    ... 7 Agriculture 3 2012-01-01 2012-01-01 false AMS. 65.105 Section 65.105 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing Practices), DEPARTMENT OF AGRICULTURE (CONTINUED) REGULATIONS AND STANDARDS UNDER THE AGRICULTURAL MARKETING ACT OF 1946 AND THE EGG...

  6. 7 CFR 65.105 - AMS.

    Code of Federal Regulations, 2013 CFR

    2013-01-01

    ... 7 Agriculture 3 2013-01-01 2013-01-01 false AMS. 65.105 Section 65.105 Agriculture Regulations of the Department of Agriculture (Continued) AGRICULTURAL MARKETING SERVICE (Standards, Inspections, Marketing Practices), DEPARTMENT OF AGRICULTURE (CONTINUED) REGULATIONS AND STANDARDS UNDER THE AGRICULTURAL MARKETING ACT OF 1946 AND THE EGG...

  7. Alignment and integration of ASSIST: a test bench for VLT adaptive optics facility

    NASA Astrophysics Data System (ADS)

    Deep, Atul; Arsenault, Robin; Boland, Wilfried; Delabre, Bernard; Hubin, Norbert; La Penna, Paolo; Madec, Pierre-Yves; Molster, Frank; Stuik, Remko; Tordo, Sebastien; Wiegers, Emiel

    2010-08-01

    ASSIST, The Adaptive Secondary Setup and Instrument STimulator, is being developed to provide a testing facility for the ESO Adaptive Optics Facility (AOF). It will allow the off-telescope testing of three elements of the VLT AOF; the Deformable Secondary Mirror (DSM) and the AO systems for MUSE and HAWK-I (GALACSI and GRAAL). The core of ASSIST consists of a 2-mirror setup (AM1-AM2) allowing the on-axis test of the DSM in interferometric mode. However, during the initial stages of ASSIST integration, DSM would not be present. This makes the task of aligning AM1-AM2 to within an accuracy of 0.05mm/1 arcmin rather challenging. A novel technique known as Shack-Hartmann method has been developed and tested in the lab for this purpose. A Shack Hartmann wavefront sensor will be used to measure the mis-alignment between AM1-AM2 by recording the coma and astigmatism in the presence of large spherical aberration introduced because of tilt/decenter of AM2 with respect to AM1. Thereafter, 20 optical components including lenses, flat mirrors and beam-splitter cubes divided into five sub-assemblies should be aligned to AM1-AM2- DSM axis which ultimately passes through the mechanical axis of large AMOS rotator.

  8. Investigation of the 241Am(n ,2 n )240Am cross section

    NASA Astrophysics Data System (ADS)

    Kalamara, A.; Vlastou, R.; Kokkoris, M.; Diakaki, M.; Tsinganis, A.; Patronis, N.; Axiotis, M.; Lagoyannis, A.

    2016-01-01

    The 241Am(n ,2 n )240Am reaction cross section has been measured at four energies, 10.0, 10.4, 10.8, and 17.1 MeV, by means of the activation technique, relative to the 27Al(n ,α )24Na reaction reference cross section. Quasi-monoenergetic neutron beams were produced via the 2H(d ,n )3He and the 3H(d ,n )4He reactions at the 5.5 MV Tandem T11/25 accelerator laboratory of NCSR "Demokritos". The high purity 241Am targets were provided by JRC-IRMM, Geel, Belgium. The induced γ -ray activity of 240Am was measured with high-resolution high-purity germanium (HPGe) detectors. Auxiliary Monte Carlo simulations were performed with the mcnp code. The present results are in agreement with data obtained earlier and predictions obtained with the empire code.

  9. A&M. TAN607. Elevation for secondphase expansion of A&M Building. Work ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    A&M. TAN-607. Elevation for second-phase expansion of A&M Building. Work areas south of the Carpentry Shop. High-bay shop, decontamination room at south-most end. Approved by INEEL Classification Office for public release. Ralph M. Parsons 1299-5-ANP/GE-3-607-A 106. Date: August 1956. INEEL index code no. 034-0607-00-693-107166 - Idaho National Engineering Laboratory, Test Area North, Scoville, Butte County, ID

  10. A&M. A&M building (TAN607). Camera facing east. From left to ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    A&M. A&M building (TAN-607). Camera facing east. From left to right, pool section, hot shop, cold shop, and machine shop. Biparting doors to hot shop are in open position behind shroud. Four rail tracks lead to hot shop and cold shop. Date: August 20, 1954. INEEL negative no. 11706 - Idaho National Engineering Laboratory, Test Area North, Scoville, Butte County, ID

  11. Report on 240Am(n,x) surrogate cross section test measurement

    SciTech Connect

    Ressler, J J; Burke, J T; Gostic, J; Bleuel, D; Escher, J E; Henderson, R A; Koglin, J; Reed, T; Scielzo, N D; Stoyer, M A

    2012-02-01

    The main goal of the test measurement was to determine the feasibility of the {sup 243}Am(p,t) reaction as a surrogate for {sup 240}Am(n,f). No data cross section data exists for neutron induced reactions on {sup 240}Am; the half-life of this isotope is only 2.1 days making direct measurements difficult, if not impossible. The 48-hour experiment was conducted using the STARS/LIBERACE experimental facility located at the 88 Inch Cyclotron at Lawrence Berkeley National Laboratory in August 2011. A description of the experiment and results is given. The beam energy was initially chosen to be 39 MeV in order to measure an equivalent neutron energy range from 0 to 20 MeV. However, the proton beam was not stopped in the farady cup and the beam was deposited in the surrounding shielding material. The shielding material was not conductive, and a beam current, needed for proper tuning of the beam as well as experimental monitoring, could not be read. If the {sup 240}Am(n,f) surrogate experiment is to be run at LBNL, simple modifications to the beam collection site will need to be made. The beam energy was reduced to 29 MeV, which was within an energy regime of prior experiments and tuning conditions at STARS/LIBERACE. At this energy, the beam current was successfully tuned and measured. At 29 MeV, data was collected with both the {sup 243}Am and {sup 238}U targets. An example particle identification plot is shown in Fig. 1. The triton-fission coincidence rate for the {sup 243}Am target and {sup 238}U target were measured. Coincidence rates of 0.0233(1) cps and 0.150(6) cps were observed for the {sup 243}Am and {sup 238}U targets, respectively. The difference in count rate is largely attributed to the available target material - the {sup 238}U target contains approximately 7 times more atoms than the {sup 243}Am. A proton beam current of {approx}0.7 nA was used for measurements on both targets. Assuming a full experimental run under similar conditions, an estimate for the

  12. Neutron capture and fission cross section of /sup 243/Am in the energy range from 5 to 250 keV

    SciTech Connect

    Wisshak, K.; Kappeler, F.

    1983-11-01

    The neutron capture and subthreshold fission cross section of /sup 243/Am was measured in the energy range from 5 to 250 keV using /sup 197/Au and /sup 235/U as the respective standards. Neutrons were produced via the /sup 7/Li(p,n) and the T(p,n) reaction with the Karlsruhe 3-MV pulsed Van de Graaff accelerator. Capture events were detected by two Moxon-Rae detectors with graphite and bismuth graphite converters, respectively. Fission events were registered by an Ne-213 liquid scintillator with pulse-shape discriminator equipment. Flight paths as short as 50 to 70 mm were used to obtain an optimum signal-to-background ratio. After correction for the different efficiency of the individual converter materials, the capture cross section could be determined with a total uncertainty of 3 to 6%. The respective values for the fission cross section are 8 to 12%. The results are compared to predictions of recent evaluations, which in some cases are severely discrepant.

  13. Complex formation of Am(III) and Am(IV) with phosphate ions in acetonitrile solutions

    SciTech Connect

    Perevalov, S.A.; Lebedev, I.A.; Myasoedov, B.F.

    1988-05-01

    The first dissociation constant of H/sub 3/PO/sub 4/ in acetonitrile solution (K/sub 1//sup 0/ = 1.75/centered dot/10/sup /minus/13/) and the constant of formation of H(H/sub 2/PO/sub 4/)/sub 2//sup /minus// dimers (K/sub d//sup 0/ = 8/centered dot/10/sup 2/) were determined by the method of pH-potentiometry. The complex formation of Am(III) in acetonitrile solutions containing 0.05-2.0 M H/sub 3/PO/sub 4/ was investigated by a spectrophotometric method; the stability constants of the complexes AmH/sub 2/PO/sub 4//sup 2+/ (/beta//sub 1//sup III/ = 1.0/centered dot/10/sup 12/) and Am(H/sub 2/PO/sub 4/)/sub 2//sup +/ (/beta//sub 2//sup III/ = 4.3/centered dot/10/sup 24/) were determined. The formal potentials of the couple Am/sup (IV)//Am/sup (III)/ in 0.3-1.9 M solutions of H/sub 3/PO/sub 4/ in acetonitrile were measured, and the stability constant of the phosphate complex of tetravalent americium Am(H/sub 2/PO/sub 4/)/sub 3//sup +/ (/beta//sub 3//sup IV/ = 2.5/centered dot/10/sup 46/) was calculated according to the value of the shift of the potential relative to the standard.

  14. Seals Research at Texas A/M University

    NASA Technical Reports Server (NTRS)

    Morrison, Gerald L.

    1991-01-01

    The Turbomachinery Laboratory at Texas A&M has been providing experimental data and computational codes for the design seals for many years. The program began with the development of a Halon based seal test rig. This facility provided information about the effective stiffness and damping in whirling seals. The Halon effectively simulated cryogenic fluids. Another test facility was developed (using air as the working fluid) where the stiffness and damping matrices can be determined. This data was used to develop bulk flow models of the seal's effect upon rotating machinery; in conjunction with this research, a bulk flow model for calculation of performance and rotordynamic coefficients of annular pressure seals of arbitrary non-uniform clearance for barotropic fluids such as LH2, LOX, LN2, and CH4 was developed. This program is very efficient (fast) and converges for very large eccentricities. Currently, work is being performed on a bulk flow analysis of the effects of the impeller-shroud interaction upon the stability of pumps. The data was used along with data from other researchers to develop an empirical leakage prediction code for MSFC. Presently, the flow field inside labyrinth and annular seals are being studied in detail. An advanced 3-D Doppler anemometer system is being used to measure the mean velocity and entire Reynolds stress tensor distribution throughout the seals. Concentric and statically eccentric seals were studied; presently, whirling seals are being studied. The data obtained are providing valuable information about the flow phenomena occurring inside the seals, as well as a data base for comparison with numerical predictions and for turbulence model development. A finite difference computer code was developed for solving the Reynolds averaged Navier Stokes equation inside labyrinth seals. A multi-scale k-epsilon turbulence model is currently being evaluated. A new seal geometry was designed and patented using a computer code. A large scale, 2

  15. Planning Facilities.

    ERIC Educational Resources Information Center

    Flynn, Richard B., Ed.; And Others

    1983-01-01

    Nine articles give information to help make professionals in health, physical education, recreation, dance, and athletics more knowledgeable about planning facilities. Design of natatoriums, physical fitness laboratories, fitness trails, gymnasium lighting, homemade play equipment, indoor soccer arenas, and dance floors is considered. A…

  16. Facilities Management.

    ERIC Educational Resources Information Center

    Bete, Tim, Ed.

    1998-01-01

    Presents responses from Matt McGovern, "School Planning and Management's" Maintenance and Operations columnist, on the issue of school facility maintenance. McGovern does not believe schools will ever likely meet acceptable levels of maintenance, nor use infrared thermography for assessing roofs, outsource all maintenance work, nor find a pressing…

  17. Recent results from the AMS-02 experiment

    NASA Astrophysics Data System (ADS)

    Vecchi, Manuela

    2015-12-01

    The AMS-02 detector is a large acceptance magnetic spectrometer operating onboard the International Space Station since May 2011. The main goals of the detector are the search for antimatter and dark matter in space, as well as the measurement of cosmic ray composition and flux. Precise measurements of cosmic ray positrons and electrons are presented in this document, based on 41×109 events collected during the first 30 months of operations.

  18. Heat capacities and thermal conductivities of AmO 2 and AmO 1.5

    NASA Astrophysics Data System (ADS)

    Nishi, Tsuyoshi; Itoh, Akinori; Ichise, Kenichi; Arai, Yasuo

    2011-07-01

    The thermal diffusivity of AmO 2 was measured from 473 to 773 K and that of AmO 1.5 between 473 and 1373 K using a laser flash method. The enthalpy increment of AmO 2 was measured from 335 to 1081 K and that of AmO 1.5 between 335 and 1086 K using drop calorimetry. The heat capacities of AmO 2 and AmO 1.5 were derived from the enthalpy increment measurements. The thermal conductivity was determined from the measured thermal diffusivity, heat capacity and bulk density. The heat capacities of AmO 2 was found larger than that of AmO 1.5. The thermal conductivities of AmO 2 and AmO 1.5 were found to decrease with increasing temperature in the investigated temperature range. The thermal conductivity of AmO 1.5 with A -type hexagonal structure was smaller than that of AmO 2 with C-type fluorite structure but larger than that of sub-stoichiometric AmO 1.73.

  19. The new LLNL AMS sample changer

    SciTech Connect

    Roberts, M.L.; Norman, P.J.; Garibaldi, J.L.; Hornady, R.S.

    1993-09-07

    The Center for Accelerator Mass Spectrometry at LLNL has installed a new 64 position AMS sample changer on our spectrometer. This new sample changer has the capability of being controlled manually by an operator or automatically by the AMS data acquisition computer. Automatic control of the sample changer by the data acquisition system is a necessary step towards unattended AMS operation in our laboratory. The sample changer uses a fiber optic shaft encoder for rough rotational indexing of the sample wheel and a series of sequenced pneumatic cylinders for final mechanical indexing of the wheel and insertion and retraction of samples. Transit time from sample to sample varies from 4 s to 19 s, depending on distance moved. Final sample location can be set to within 50 microns on the x and y axis and within 100 microns in the z axis. Changing sample wheels on the new sample changer is also easier and faster than was possible on our previous sample changer and does not require the use of any tools.

  20. Bowen fluorescence in AM Herculis stars

    NASA Technical Reports Server (NTRS)

    Schachter, Jonathan; Filippenko, Alexei V.; Kahn, Steven M.; Paerels, Frits B. S.

    1991-01-01

    The study relates the observations of the Bowen fluorescence lines in AM Her and EF Eri, two AM Her systems. The implications of source variability and the checks performed in order to verify the accuracy of the data are reviewed. The line ratios for H I and He II are shown to deviate considerably from those expected; in this light, the H I and He II emission in AM Her is analyzed in detail. This approach makes it possible to put limits on line and continuum optical depths as well as temperatures. These limits along with the observed Bowen emission are used to construct a picture of the emission-line regions in the two sources, producing the values for the size, density, and temperature of a region. The derived value of the size is found to be significantly less than the size of the Roche lobe of the white dwarf, while the large range of densities is attributed to the exponential temperature dependence in the expression used for density.

  1. AMICA, an astro-mapper for AMS

    NASA Astrophysics Data System (ADS)

    Monfardini, Alessandro; Trampus, Paolo; Battiston, Roberto; Gargiulo, Corrado

    2006-07-01

    The alpha magnetic spectrograph (AMS) is a composite particle detector to be accommodated on the International Space Station (ISS). AMS is mainly devoted to galactic, charged cosmic rays studies, antimatter and dark matter searches. Besides the main, classical physics goals, capabilities in the field of GeV and multi-GeV gamma astrophysics have been established and are under investigation by a number of groups. Due to the unsteadiness of the ISS platform, a star-mapper device is required in order to fully exploit the intrinsic arc-min angular resolution provided by the silicon tracker. A star-mapper is conceptually an imaging, optical instrument able to autonomously recognize a stellar field and to calculate its own orientation with respect to an inertial reference frame. AMICA (Astro Mapper for Instruments Check of Attitude) on AMS is responsible for providing real-time information that is going to be used off-line for compensating the large uncertainties in the ISS flight attitude and the structural degrees of freedom. In this paper, we describe in detail the AMICA sub-system, the accommodation/integration issues and the in-flight alignment procedure adopting identified galactic (Pulsars) and extra-galactic (AGNs) sources.

  2. Think Big: Leadership Projects for AMS and Montessori Educators

    ERIC Educational Resources Information Center

    Chattin-McNichols, John

    2014-01-01

    The American Montessori Society's (AMS) 2014 Living Legacy recipient, John Chattin-McNichols, delivered the keynote address at the Annual Conference in Dallas, TX, on March 27, 2014, In his speech, he described three overall highlights of AMS: (1) AMS is now a world-leading organization; (2) It must become a learning organization; and (3)…

  3. 47 CFR 73.45 - AM antenna systems.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 47 Telecommunication 4 2011-10-01 2011-10-01 false AM antenna systems. 73.45 Section 73.45... Broadcast Stations § 73.45 AM antenna systems. (a) All applicants for new, additional, or different AM... existing station must specify an antenna system, the efficiency of which complies with the requirements...

  4. 47 CFR 73.45 - AM antenna systems.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 47 Telecommunication 4 2012-10-01 2012-10-01 false AM antenna systems. 73.45 Section 73.45... Broadcast Stations § 73.45 AM antenna systems. (a) All applicants for new, additional, or different AM... existing station must specify an antenna system, the efficiency of which complies with the requirements...

  5. 47 CFR 73.45 - AM antenna systems.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 47 Telecommunication 4 2014-10-01 2014-10-01 false AM antenna systems. 73.45 Section 73.45... Broadcast Stations § 73.45 AM antenna systems. (a) All applicants for new, additional, or different AM... existing station must specify an antenna system, the efficiency of which complies with the requirements...

  6. 47 CFR 73.45 - AM antenna systems.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 47 Telecommunication 4 2013-10-01 2013-10-01 false AM antenna systems. 73.45 Section 73.45... Broadcast Stations § 73.45 AM antenna systems. (a) All applicants for new, additional, or different AM... existing station must specify an antenna system, the efficiency of which complies with the requirements...

  7. 47 CFR 73.45 - AM antenna systems.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 47 Telecommunication 4 2010-10-01 2010-10-01 false AM antenna systems. 73.45 Section 73.45... Broadcast Stations § 73.45 AM antenna systems. (a) All applicants for new, additional, or different AM... existing station must specify an antenna system, the efficiency of which complies with the requirements...

  8. 47 CFR 73.49 - AM transmission system fencing requirements.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 47 Telecommunication 4 2013-10-01 2013-10-01 false AM transmission system fencing requirements. 73.49 Section 73.49 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.49 AM transmission system fencing...

  9. 47 CFR 73.49 - AM transmission system fencing requirements.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 47 Telecommunication 4 2011-10-01 2011-10-01 false AM transmission system fencing requirements. 73.49 Section 73.49 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.49 AM transmission system fencing...

  10. 47 CFR 73.49 - AM transmission system fencing requirements.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 47 Telecommunication 4 2012-10-01 2012-10-01 false AM transmission system fencing requirements. 73.49 Section 73.49 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.49 AM transmission system fencing...

  11. 47 CFR 73.49 - AM transmission system fencing requirements.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 47 Telecommunication 4 2010-10-01 2010-10-01 false AM transmission system fencing requirements. 73.49 Section 73.49 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.49 AM transmission system fencing...

  12. 47 CFR 73.49 - AM transmission system fencing requirements.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 47 Telecommunication 4 2014-10-01 2014-10-01 false AM transmission system fencing requirements. 73.49 Section 73.49 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.49 AM transmission system fencing...

  13. Qualifying the Sunpower M87N Cryocooler for Operation in the AMS-02 Magnetic Field

    NASA Technical Reports Server (NTRS)

    Mustafi, Shuvo; Banks, Stuart; Shirey, Kim; Breon, Susan

    2003-01-01

    The Alpha Magnetic Spectrometer-02 (AMs-02) experiment uses a superfluid helium dewar to cool a large superconducting magnet. The outer vapor-cooled shields of the dewar are to be held at 80 K by four Sunpower M87N cryocoolers. These cryocoolers have magnetic components that might interact with the external applied field generated by the superconducting magnet, thereby degrading the cryocoolers' performance. Engineering models of the Sunpower M87 have been qualified for operation in a magnetic environment similar to the AMs-02 magnetic environment. Although there was no noticeable performance degradation at field levels that were comparable to AMs-02 field levels, there appears to be a small performance degradation at higher field levels. It was theorized that there were three possible issues related to these performance losses at high magnetic fields: i) induced piston rubbing on the cylinder wall due to forces and torques on the linear motor due to the applied magnetic fields; ii) Magnetic hysteretic and/or eddy current damping of the balancer due to its motion in the applied magnetic fields; iii) Inductance losses in motor due to the applied magnetic field. The experiments conducted at the Massachusetts Institute of Technology (MIT) cyclotron facility in June 2002 were designed to test these. Tests were performed over a range of field levels that were lower, comparable, and higher than the field levels that the cryocoolers will experience in the AMs-02 operating environment. This paper describes the experiments and the inferences derived from them.

  14. Biocorrosion behavior of biodegradable nanocomposite fibers coated layer-by-layer on AM50 magnesium implant.

    PubMed

    Abdal-Hay, Abdalla; Hasan, Anwarul; Kim, Yu-Kyoung; Yu-Kyoung; Lee, Min-Ho; Hamdy, Abdel Salam; Khalil, Khalil Abdelrazek

    2016-01-01

    This article demonstrates the use of hybrid nanofibers to improve the biodegradation rate and biocompatibility of AM50 magnesium alloy. Biodegradable hybrid membrane fiber layers containing nano-hydroxyapatite (nHA) particles and poly(lactide)(PLA) nanofibers were coated layer-by-layer (LbL) on AM50 coupons using a facile single-step air jet spinning (AJS) approach. The corrosion performance of coated and uncoated coupon samples was investigated by means of electrochemical measurements. The results showed that the AJS 3D membrane fiber layers, particularly the hybrid membrane layers containing a small amount of nHA (3 wt.%), induce a higher biocorrosion resistance and effectively decrease the initial degradation rate compared with the neat AM50 coupon samples. The adhesion strength improved highly due to the presence of nHA particles in the AJS layer. Furthermore, the long biodegradation rates of AM50 alloy in Hank's balanced salt solution (HBSS) were significantly controlled by the AJS-coatings. The results showed a higher cytocompatibility for AJS-coatings compared to that for neat Mg alloys. The nanostructured nHA embedded hybrid PLA nanofiber coating can therefore be a suitable coating material for Mg alloy as a potential material for biodegradable metallic orthopedic implants. PMID:26478426

  15. High resolution measurements of the Am241(n,2n) reaction cross section

    NASA Astrophysics Data System (ADS)

    Sage, C.; Semkova, V.; Bouland, O.; Dessagne, P.; Fernandez, A.; Gunsing, F.; Nästren, C.; Noguère, G.; Ottmar, H.; Plompen, A. J. M.; Romain, P.; Rudolf, G.; Somers, J.; Wastin, F.

    2010-06-01

    Measurements of the Am241(n,2n) reaction cross section have been performed at the Joint Research Centre (JRC) Geel in the frame of a collaboration between the European Commission (EC) JRC and French laboratories from CNRS and the Commissariat à L’Energie Atomique (CEA) Cadarache. Raw material coming from the Atalante facility of CEA Marcoule has been transformed by JRC Karlsruhe into suitable Am241O2 samples embedded in Al2O3 matrices specifically designed for these measurements. The irradiations were carried out at the 7-MV Van de Graaff accelerator. The Am241(n,2n) reaction cross section was determined relative to the Al27(n,α)Na24 standard cross section. The measurements were performed in four sessions, using quasi-mono-energetic neutrons with energies ranging from 8 to 21 MeV produced via the H2(d,n)He3 and the H3(d,n)He4 reactions. The induced activity was measured by standard γ-ray spectrometry using a high-purity germanium detector. Below 15 MeV, the present results are in agreement with data obtained earlier. Above 15 MeV, these measurements allowed the experimental investigation of the Am241(n,2n) reaction cross section for the first time. The present data are in good agreement with predictions obtained with the talys code that uses an optical and fission model developed at CEA.

  16. AMS method for depth profiling of trace elements concentration in materials - Construction and applications

    NASA Astrophysics Data System (ADS)

    Stan-Sion, C.; Enachescu, M.

    2015-10-01

    The need to investigate the behavior of solid state materials on the impact/retention/repulsion/contamination/impregnation with special trace elements or radioactive elements has driven us to develop a modified Accelerator Mass Spectrometry (AMS) analyzing method that is able to perform the measurement of the concentration depth profile of an element in a host material. This upgraded method that we call AMS-depth profiling method (AMS-DP) measures continuously the concentration of a trace element in a given sample material as a function of the depth from the surface (e.g., tritium in carbon, deuterium in tungsten, etc.). However, in order to perform depth profiling, common AMS facilities have to undergo several changes: a new replaceable sample target-holder has to be constructed to accept small plates of solid material as samples; their position has to be adjusted in the focus point of the sputter beam; crater rim effects of the produced hole in the sample have to be avoided or removed from the registered events in the detector; suitable reference samples have to be prepared and used for calibration. All procedures are presented in the paper together with several applications.

  17. 21 CFR 822.24 - What are my responsibilities once I am notified that I am required to conduct postmarket...

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... that I am required to conduct postmarket surveillance? 822.24 Section 822.24 Food and Drugs FOOD AND... SURVEILLANCE Responsibilities of Manufacturers § 822.24 What are my responsibilities once I am notified that I am required to conduct postmarket surveillance? You must submit your plan to conduct...

  18. 21 CFR 822.24 - What are my responsibilities once I am notified that I am required to conduct postmarket...

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... that I am required to conduct postmarket surveillance? 822.24 Section 822.24 Food and Drugs FOOD AND... SURVEILLANCE Responsibilities of Manufacturers § 822.24 What are my responsibilities once I am notified that I am required to conduct postmarket surveillance? You must submit your plan to conduct...

  19. 21 CFR 822.24 - What are my responsibilities once I am notified that I am required to conduct postmarket...

    Code of Federal Regulations, 2014 CFR

    2014-04-01

    ... that I am required to conduct postmarket surveillance? 822.24 Section 822.24 Food and Drugs FOOD AND... SURVEILLANCE Responsibilities of Manufacturers § 822.24 What are my responsibilities once I am notified that I am required to conduct postmarket surveillance? You must submit your plan to conduct...

  20. High altitude AM0 testing of PV concentrator lens elements. [Air Mass Zero

    NASA Technical Reports Server (NTRS)

    Piszczor, M. F.; Brinker, D. J.; Boyer, E. O.; Mcknight, R. C.; Ranaudo, R. J.

    1990-01-01

    Recently, the NASA Lewis Research Center modified its Lear High Altitude Test Facility to fly two prototype ENTECH minidome Fresnel lens photovoltaic concentrator elements. The tests were highly successful, and the results verified the ability of the Lear High Altitude Facility to measure the optical performance of individual concentrator lens elements and concentrator/cell combinations at near AM0 insolation conditions. The two concentrator lenses flown achieved optical efficiencies, based on a gallium arsenide concentrator cell response, of 89.8 percent and 90.0 percent. The flights demonstrated the ability of the aircraft to maintain the pointing accuracy required to obtain useful data. With proper alignment of the collimating tube and the pilot's sunsight, this facility could easily maintain a pointing accuracy of + or - 0.5 deg for a sufficiently long time to obtain accurate, reproducible results.

  1. Rolling-element fatigue life of AMS 5900 balls

    NASA Technical Reports Server (NTRS)

    Parker, R. J.

    1983-01-01

    The rolling-element fatigue life of AMS 5900 12.7-mm (1/2-in.) dia was determined in five-ball fatigue testers. The 10% life with the warm headed AMS 5900 balls was equivalent to that of AMS 5749 and over eight times that of AISI M-50. The AMS balls fabricated by cold heading had small surface cracks which initiated fatigue spalls where these cracks were crossed by running tracks. The cold-headed AMS 5900 balls had a 10% fatigue life an order of magnitude less than that of the warm headed balls even when failures on the cold headed balls at visible surface cracks were omitted.

  2. How to convert biological carbon into graphite for AMS

    SciTech Connect

    Getachew, G; Kim, S; Burri, B J; Kelly, P B; Haack, K W; Ognibene, T J; Buchholz, B A; Vogel, J S; Modrow, J; Clifford, A J

    2006-07-27

    Isotope tracer studies, particularly radiocarbon measurements, play a key role in biological, nutritional, and environmental research. Accelerator mass spectrometry (AMS) is now the most sensitive detection method for radiocarbon, but AMS is not widely used in kinetic studies of humans. Part of the reason is the expense, but costs would decrease if AMS were used more widely. One component in the cost is sample preparation for AMS. Biological and environmental samples are commonly reduced to graphite before they are analyzed by AMS. Improvements and mechanization of this multi-step procedure is slowed by a lack of organized educational materials for AMS sample preparation that would allow new investigators to work with the technique without a substantial outlay of time and effort. We present a detailed sample preparation protocol for graphitizing biological samples for AMS and include examples of nutrition studies that have used this procedure.

  3. Development of an AMS method to study oceanic circulation characteristics using cosmogenic 39Ar

    USGS Publications Warehouse

    Collon, P.H.; Bichler, M.; Caggiano, J.; Cecil, L.D.; El, Masri Y.; Golser, R.; Jiang, C.L.; Heinz, A.; Henderson, D.; Kutschera, W.; Lehmann, B.E.; Leleux, P.; Loosli, H.H.; Pardo, R.C.; Paul, M.; Rehm, K.E.; Schlosser, P.; Scott, R.H.; Smethie, W.M., Jr.; Vondrasek, R.

    2004-01-01

    Initial experiments at the ATLAS facility [Nucl. Instr. and Meth. B 92 (1994) 241] resulted in a clear detection of cosmogenic 39Ar signal at the natural level. The present paper summarizes the recent developments of 39Ar AMS measurements at ATLAS: the use of an electron cyclotron resonance (ECR) positive ion source equipped with a special quartz liner to reduce 39K background, the development of a gas handling system for small volume argon samples, the acceleration of 39Ar8+ ions to 232 MeV, and the final separation of 39Ar from 39K in a gas-filled spectrograph. The first successful AMS measurements of 39Ar in ocean water samples from the Southern Atlantic ventilation experiment (SAVE) are reported. Published by Elsevier B.V.

  4. Educational Opportunities in Pro-Am Collaboration

    NASA Astrophysics Data System (ADS)

    Fienberg, R. T.; Stencel, R. E.

    2006-08-01

    While many backyard stargazers take up the hobby just for fun, many others are attracted to it because of their keen interest in learning more about the universe. The best way to learn science is to do science. Happily, the technology available to today's amateur astronomers — including computer-controlled telescopes, CCD cameras, powerful astronomical software, and the Internet — gives them the potential to make real contributions to scientific research and to help support local educational objectives. Meanwhile, professional astronomers are losing access to small telescopes as funding is shifted to larger projects, including survey programs that will soon discover countless interesting objects needing follow-up observations. Clearly the field is ripe with opportunities for amateurs, professionals, and educators to collaborate. Amateurs will benefit from mentoring by expert professionals, pros will benefit from observations and data processing by increasingly knowledgeable amateurs, and educators will benefit from a larger pool of skilled talent to help them carry out astronomy-education initiatives. We will look at some successful pro-am collaborations that have already borne fruit and examine areas where the need and/or potential for new partnerships is especially large. In keeping with the theme of this special session, we will focus on how pro-am collaborations in astronomy can contribute to science education both inside and outside the classroom, not only for students of school age but also for adults who may not have enjoyed particularly good science education when they were younger. Because nighttime observations with sophisticated equipment are not always possible in formal educational settings, we will also mention other types of pro-am partnerships, including those involving remote observing, data mining, and/or distributed computing.

  5. The Orbital Period of AM Canum Venaticorum

    NASA Astrophysics Data System (ADS)

    Harvey, David A.; Skillman, David R.; Kemp, Jonathan; Patterson, Joseph; Vanmunster, Tonny; Fried, Robert E.; Retter, Alon

    1998-02-01

    We report the discovery of a strictly periodic signal at 1028.7325+/-0.0004 s in the light curve of the cataclysmic variable AM Canum Venaticorum. This brings to an end the long search for the true binary period of this important star, which represents the latest known stage of binary star evolution. It provides a more secure and quantitative basis for testing theories of binary evolution. And it provides strong evidence in favor of the ``permanent superhump'' interpretation of this star and other cataclysmic variables of extreme mass ratio.

  6. Biomedical applications of AMS at ANU

    SciTech Connect

    Fifield, L.K.; Cresswell, R.G.; Day, J.P.; King, S.J.

    1995-12-01

    Studies utilising {sup 26}Al have constituted the bulk of the biomedical AMS program at the ANU`s 14UD accelerator. Projects underway or completed include: the dependence on chemical form of aluminum uptake from the gut; the partitioning of Al among the various components of cells and blood; and uptake of Al by Alzheimer`s patients. In addition, capabilities for measuring {sup 32}Si, {sup 41}Ca and plutonium in a biomedical context have been established during the past year. Results of the {sup 26}Al studies and an outline of the methodology for the other isotopes will be presented and discussed.

  7. The AMS experiment: Results and perspectives

    NASA Astrophysics Data System (ADS)

    Bertucci, B.; AMS Collaboration

    2016-07-01

    The Alpha Magnetic Spectrometer (AMS) experiment operates since May 2011 on board of the International Space Station to search for primordial anti-matter, to study the light anti-matter components in the Cosmic Rays (CR) and to perform a precision study of the CR composition and energy spectrum. More than 60 billion events have been collected by the instrument up to now thanks to its large acceptance and the long exposure time. In this contribution we will discuss the most recent results, reviewing the instrument design and performances as well as the data analysis procedures enabling their achievement.

  8. Neutron-induced fission cross section measurement of 233U, 241Am and 243Am in the energy range 0.5 MeV En 20 MeV at nTOF at CERN

    SciTech Connect

    Belloni, F.; Milazzo, P. M.; Calviani, M.; Colonna, N.; Mastinu, P. F.; Abbondanno, U.; Aerts, G.; Alvarez, H.; Alvarez-Velarde, F.; Andriamonje, S.; Andrzejewski, J.; Assimakopoulos, P. A.; Audouin, L.; Barbagallo, M.; Baumann, P.; Becvar, F.; Berthoumieux, E.; Calvino, F.; Cerutti, F.; Cano-Ott, D.; Capote, R.; Carrapico, C.; Carrillo de Albornoz, A.; Cennini, P.; Chepel, V.; Chiaveri, E.; Cortes, G.; Couture, A.; Cox, J.; Dahlfors, M.; David, S.; Dillmann, I.; Dolfini, R.; Domingo-Pardo, C.; Koehler, Paul; The n_TOF Collaboration,

    2012-01-01

    Neutron-induced fission cross section measurements of 233U, 243Am and 241Am relative to 235U have been carried out at the neutron time-of-flight facility n TOF at CERN. A fast ionization chamber has been employed. All samples were located in the same detector; therefore the studied elements and the reference 235U target are subject to the same neutron beam.

  9. ORFEUS and EUVE observations of AM herculis

    SciTech Connect

    Mauche, C.W.; Paerels, F.B.S.; Raymond, J.C.

    1995-04-06

    Far-UV spectra of AM Her in a high optical state were obtained in 1993 September with the University of California, Berkeley (UCB) spectrometer aboard the ORFEUS telescope. The UCB spectrometer has a spectral resolution {lambda}/{Delta}{lambda} 3000 and covers the 390-1170 {Angstrom} bandpass, but interstellar absorption leaves no detectable -flux below the Lyman limit. Spectra of AM Her were acquired during the intervals 04:19:40-04:36:26 UT on September 16 and 08:34:03-09:09:06 UT on September 17 of 1993. The corresponding magnetic phases are 0.75-0.84 and 0.88-1.07 according to the linear polarization ephemeris of S. Tapia. The main spectral features are the 0 VI doublet, C III {lambda}977, and He II {lambda}1085 (Balmer {gamma}). The bright C III {lambda}1176 multiplet, which is detected by IUE, is at the very end of the spectrum. At the full spectral resolution of the instrument, the 0 VI doublet shows broad and narrow components similar to that of the optical emission lines. The intensity ratio of the narrow component of the 0 VI doublet is {approximately} 1.3:1, much closer to the optically thick limit of 1:1 than the optically thin ratio of 2:1.

  10. Internal gastargets in AmPS

    NASA Astrophysics Data System (ADS)

    Kaan, A. P.; Postma, O.; van den Brand, J. F. J.; van Leeuwen, E.; Doets, M.; Kraan, M.

    1997-05-01

    Internal gas targets in AmPS A.P. Kaan, O. Postma, J.F.J. van den Brand, E. van Leeuwen, M. Doets, M. Kra= an National Institute for Nuclear Physics and High Energy Physics; Kruislaan 409; 1098 SJ Amsterdam; Holland In the Amsterdam Puls Stretcher/storage ring AmPS(1 GeV electrons), we designed a set-up in order to accommodate a gas target with a density of 1016 mol/cm2. The storage cell needed for this purpose is a aluminium tube with a length of 40 cm, a diameter of 15 mm and a wall thickness of 25 =B5m. Three sets of conductance limiters on both sides of the target, combined with dry turbopumps are designed to be used as differential pumping stations. These limiters cause discontinuities in the beam path and must therefor be retractable and radio frequency compatible in both positions. Low =B5 materials must be used because of the depolarisation effects of changing magnetic fields. The calculations show that the flow resistance's are sufficient to reduce the load of the getter pumps to a level with which the lifetime of the pump elements remain acceptable. The design of the mechanics and the vacuum system will be explained. Recent results from the measurements after installation in combination with the influence on the lifetime on the beam will be presented

  11. Decay counting in the age of AMS

    NASA Astrophysics Data System (ADS)

    Arnold, James R.

    1987-11-01

    Up to the advent of AMS, all the accomplishments of 14C dating, and the studies of 10Be and other long-lived radionuclides, were made by low-level decay counting, the technique pioneered by W.F. Libby. It will hardly be news to people at this conference that, while much was accomplished in the three decades when counting prevailed, the world has now changed decisively. I will try to give an account of where low-level counting was "before the revolution," and of what its usefulness is today. There are still some remarkable examples of its application, the best being the neutrino experiment of Raymond Davis, and its potential successors. Some cosmogenic nuclides, whose half-lives are less than 10 3 yr, are still best measured by decay; this will continue unless the overall ion yield of AMS systems rises markedly from present levels. One long-lived nuclide, 53Mn, is still best measured by neutron activation as 312-day 54Mn, but this may not continue.

  12. The ionoluminescence apparatus at the LABEC external microbeam facility

    NASA Astrophysics Data System (ADS)

    Calusi, S.; Colombo, E.; Giuntini, L.; Giudice, A. Lo; Manfredotti, C.; Massi, M.; Pratesi, G.; Vittone, E.

    2008-05-01

    In this paper, we describe the main features of the ionoluminescence (IL) apparatus recently installed at the external scanning microbeam facility of the 3 MV Tandetron accelerator of the INFN LABEC Laboratory in Firenze. The peculiarity of this IL set-up resides in the fact that the light produced by the ion irradiation of the specimen is collected by a bifurcated optical fiber, so that photons are shunted both to a CCD spectrometer, working in the 200-900 nm wavelength range, and to a photomultiplier (PMT). The accurate focusing of the optical system allows high photon collection efficiency and this results in rapid acquisition of luminescence spectra with low ion currents on luminescent materials; simultaneously, luminescence maps with a spatial resolution of 10 μm can be acquired through the synchronization of PMT photon detection with the position of the scanning focused ion beam. An optical filter with a narrow passband facing the photomultiplier allows chromatic selectivity of the luminescence centres. The IL apparatus is synergistically integrated into the existing set-up for ion beam analyses (IBA). The upgraded system permits simultaneous IL and PIXE/PIGE/BS measurements. With our integrated system, we have been studying raw lapis lazuli samples of different known origins and precious lapis lazuli artworks of the Collezione Medicea of Museum of Natural History, University of Firenze, aiming at characterising their composition and provenance.

  13. Progress in AMS measurements at the LLNL spectrometer. [Accelerator Mass Spectroscopy (AMS)

    SciTech Connect

    Southon, J.R.; Vogel, J.S.; Trumbore, S.E.; Davis, J.C.; Roberts, M.L.; Caffee, M.; Finkel, R.; Proctor, I.D.; Heikkinen, D.W.; Berno, A.J.; Hornady, R.S.

    1991-06-01

    The AMS measurement program at LLNL began in earnest in late 1989, and has initially concentrated on {sup 14}C measurements for biomedical and geoscience applications. We have now begun measurements on {sup 10}Be and {sup 36}Cl, are presently testing the spectrometer performance for {sup 26}Al and {sup 3}H, and will begin tests on {sup 7}Be, {sup 41}Ca and {sup 129}I within the next few months. Our laboratory has a strong biomedical AMS program of {sup 14}C tracer measurements involving large numbers of samples (sometimes hundreds in a single experiment) at {sup 14}C concentrations which are typically .5--5 times Modern, but are occasionally highly enriched. The sample preparation techniques required for high throughput and low cross-contamination for this work are discussed elsewhere. Similar demands are placed on the AMS measurement system, and in particular on the ion source. Modifications to our GIC 846 ion source, described below, allow us to run biomedical and geoscience or archaeological samples in the same source wheel with no adverse effects. The source has a capacity for 60 samples (about 45 unknown) in a single wheel and provides currents of 30--60{mu}A of C{sup {minus}} from hydrogen-reduced graphite. These currents and sample capacity provide high throughput for both biomedical and other measurements: the AMS system can be started up, tuned, and a wheel of carbon samples measured to 1--1.5% in under a day; and 2 biomedical wheels can be measured per day without difficulty. We report on the present status of the Lawrence Livermore AMS spectrometer, including sample throughput and progress towards routine 1% measurement capability for {sup 14}C, first results on other isotopes, and experience with a multi-sample high intensity ion source. 5 refs.

  14. 47 CFR 73.37 - Applications for broadcast facilities, showing required.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 47 Telecommunication 4 2014-10-01 2014-10-01 false Applications for broadcast facilities, showing required. 73.37 Section 73.37 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.37 Applications for broadcast facilities, showing required. (a) No...

  15. 75 FR 15389 - No Child Left Behind School Facilities and Construction Negotiated Rulemaking Committee Meeting

    Federal Register 2010, 2011, 2012, 2013, 2014

    2010-03-29

    ... Bureau of Indian Affairs 25 CFR CHAPTER VI No Child Left Behind School Facilities and Construction... that the No Child Left Behind School Facilities and Construction Negotiated Rulemaking Committee will... Child Left Behind Act of 2001. DATES: The Committee's second meeting will begin at 8:30 a.m. on April...

  16. Evaluation of Am-Li neutron spectra data for active well type neutron multiplicity measurements of uranium

    NASA Astrophysics Data System (ADS)

    Goddard, Braden; Croft, Stephen; Lousteau, Angela; Peerani, Paolo

    2016-09-01

    Safeguarding nuclear material is an important and challenging task for the international community. One particular safeguards technique commonly used for uranium assay is active neutron correlation counting. This technique involves irradiating unused uranium with (α, n) neutrons from an Am-Li source and recording the resultant neutron pulse signal which includes induced fission neutrons. Although this non-destructive technique is widely employed in safeguards applications, the neutron energy spectra from an Am-Li sources is not well known. Several measurements over the past few decades have been made to characterize this spectrum; however, little work has been done comparing the measured and theoretical spectra of various Am-Li sources to each other. This paper examines fourteen different Am-Li spectra, focusing on how these spectra affect simulated neutron multiplicity results using the code Monte Carlo N-Particle eXtended (MCNPX). Two measurement and simulation campaigns were completed using Active Well Coincidence Counter (AWCC) detectors and uranium standards of varying enrichment. The results of this work indicate that for standard AWCC measurements, the fourteen Am-Li spectra produce similar doubles and triples count rates. The singles count rates varied by as much as 20% between the different spectra, although they are usually not used in quantitative analysis, being dominated by scattering which is highly dependent on item placement.

  17. Recent developments of ion beam induced luminescence at the external scanning microbeam facility of the LABEC laboratory in Florence

    NASA Astrophysics Data System (ADS)

    Colombo, E.; Calusi, S.; Cossio, R.; Giuntini, L.; Giudice, A. Lo; Mandò, P. A.; Manfredotti, C.; Massi, M.; Mirto, F. A.; Vittone, E.

    2008-04-01

    A new ionoluminescence (IL) apparatus has been successfully installed at the external scanning microbeam facility of the 3 MV Tandetron accelerator of the INFN LABEC in Firenze; the apparatus for photon detection has been fully integrated in the existing ion beam analysis (IBA) set-up, for the simultaneous acquisition of IL and PIXE/PIGE/BS spectra and maps. The potential of the new set-up is illustrated in this paper by some results extracted by the analysis of art objects and advanced semiconductor materials. In particular, the adequacy of the new IBA set-up in the field of cultural heritage is pointed out by the coupled PIXE/IL micro-analysis of a lapis lazuli stone; concerning applications in material science, IL spectra from a N doped diamond sample were acquired and compared with CL analyses to evaluate the relevant sensitivities and the effect of ion damage.

  18. Calibration of a new experimental chamber for PIXE analysis at the Accelerator Facilities Division of Atomic Energy Centre Dhaka (AECD)

    NASA Astrophysics Data System (ADS)

    Hassan, Md. Taufique; Shariff, Md. Asad; Hossein, Amzad; Abedin, Md. Joynal; Fazlul Hoque, A. K. M.; Chowdhuri, M. S.

    2015-05-01

    A new experimental chamber has been installed at the 3 MV Van de Graaff Accelerator Facilities Division in the Atomic Energy Centre, Dhaka, to perform different Ion Beam Analysis (IBA) techniques. The calibration of this new setup for Particle Induced X-ray Emission (PIXE) technique has been done using a set of thin MicroMatter standards and GUPIX (PIXE spectrum analysis software), which is explicated in this paper. The effective thicknesses of the beryllium window of the X-ray detector and of the different absorbers used were determined. For standardization, the so called instrumental constant H (product of detector solid angle and the correction factor for the setup) as function of X-ray energy were determined and stored inside the GUPIX library for further PIXE analysis.

  19. Multi-nuclide AMS system at the University of Tsukuba

    SciTech Connect

    Sasa, Kimikazu; Takahashi, Tsutomu

    2010-05-12

    A multi-nuclide AMS system on the 12UD Pelletron tandem accelerator at the University of Tsukuba (Tsukuba AMS system) can measure environmental levels of long-lived radioisotopes of {sup 14}C, {sup 26}Al, {sup 36}Cl and {sup 129}I by employing a molecular pilot beam. AMS is an ultrasensitive technique for the study of long-lived radioisotopes, and stable isotopes at very low abundances. The high terminal voltage has an advantage in the detection of heavy radioisotopes. Much progress has been made in the development of new AMS techniques. For example, a standard deviation of the fluctuation for the {sup 36}Cl/Cl ratio is +- 2%, and the effective detection limit is better than 1x10{sup -15}. In recent years, the main research field of the 12UD Pelletron tandem accelerator has shifted to accelerator mass spectrometry (AMS) research from nuclear physics. This report presents an overview of the Tsukuba AMS system.

  20. SIRIUS - A new 6 MV accelerator system for IBA and AMS at ANSTO

    NASA Astrophysics Data System (ADS)

    Pastuovic, Zeljko; Button, David; Cohen, David; Fink, David; Garton, David; Hotchkis, Michael; Ionescu, Mihail; Long, Shane; Levchenko, Vladimir; Mann, Michael; Siegele, Rainer; Smith, Andrew; Wilcken, Klaus

    2016-03-01

    The Centre for Accelerator Science (CAS) facility at ANSTO has been expanded with a new 6 MV tandem accelerator system supplied by the National Electrostatic Corporation (NEC). The beamlines, end-stations and data acquisition software for the accelerator mass spectrometry (AMS) were custom built by NEC for rare isotope mass spectrometry, while the beamlines with end-stations for the ion beam analysis (IBA) are largely custom designed at ANSTO. An overview of the 6 MV system and its performance during testing and commissioning phase is given with emphasis on the IBA end-stations and their applications for materials modification and characterisation.

  1. AMS-graphite target production methods at the Woods Hole Oceanographic Institution during 1986-1991

    SciTech Connect

    Gagnon, A.R.; Jones, G.A. . Geology and Geophysics Dept.)

    1993-01-01

    In July 1986, an AMS radiocarbon target preparation laboratory was established at the Woods Hole Oceanographic Inst. to produce graphite to be analyzed at the NSF-Accelerator Facility for Radioisotope Analysis at the Univ. of Arizona (Tucson). By June 1991, 923 graphite targets had been prepared and 847 analyzed. The lab procedures during this time included the careful documentation of weights of all starting samples, catalysts and final graphite yields, as well as the volume of CO[sub 2] gas evolved during CaCO[sub 3] hydrolysis or closed-tube organic carbon combustions. From these data, the authors evaluate the methods used in general and in this lab.

  2. Preparation of a multi-isotope plutonium AMS standard and preliminary results of a first inter-lab comparison

    NASA Astrophysics Data System (ADS)

    Dittmann, B.-A.; Dunai, T. J.; Dewald, A.; Heinze, S.; Feuerstein, C.; Strub, E.; Fifield, L. K.; Froehlich, M. B.; Tims, S. G.; Wallner, A.; Christl, M.

    2015-10-01

    The motivation of this work is to establish a new multi-isotope plutonium standard for isotopic ratio measurements with accelerator mass spectrometry (AMS), since stocks of existing solutions are declining. To this end, certified reference materials (CRMs) of each of the individual isotopes 239Pu, 240Pu, 242Pu and 244Pu were obtained from JRC IRMM (Joint Research Center Institute for Reference Materials and Measurements). These certified reference materials (IRMM-081a, IRMM-083, IRMM-043 and IRMM-042a) were diluted with nitric acid and mixed to obtain a stock standard solution with an isotopic ratio of approximately 1.0:1.0:1.0:0.1 (239Pu:240Pu:242Pu:244Pu). From this stock solution, samples were prepared for measurement of the plutonium isotopic composition by AMS. These samples have been measured in a round-robin exercise between the AMS facilities at CologneAMS, at the ANU Canberra and ETH Zurich to verify the isotopic ratio and to demonstrate the reproducibility of the measurements. The results show good agreement both between the different AMS measurements and with the gravimetrically determined nominal ratios.

  3. How are we doing? AMS survey reveals member satisfaction.

    PubMed

    Penn, Casey L

    2008-06-01

    Members expressed overall satisfaction with their AMS membership and agreed that, through their membership, they benefit from a collective voice and a stronger influence where health issues are concerned. How do you rate your Arkansas Medical Society? The Society always wants to hear comments and suggestions from its members. Call AMS at 224-8967 or come by and visit the AMS staff at 10 Corporate Hill Drive in Little Rock. PMID:18564464

  4. Potential of the Bucharest 3 MV Tandetron™ for IBA studies of deer antler mineralization

    NASA Astrophysics Data System (ADS)

    Gomez, S.; Garcia, A.; Landete-Castillejos, T.; Gallego, L.; Pantelica, D.; Pantelica, Ana; Preoteasa, E. A.; Scafes, Adela; Straticiuc, M.

    2016-03-01

    Combined PIXE and PIGE analysis was applied at the new Bucharest Tandetron to investigate biomineralization in two calcified tissues, deer antlers and femur bone. By annual loss and fast re-growth, antlers are a valuable model for bone as a dynamical system. Samples characterized by optical microscopy and histology were analyzed for P, Ca, F, Na, Mg, S, Cl, K, Zn, Sr by 3 MeV proton simultaneous PIXE and PIGE, using a hydroxyapatite standard and other reference materials. Good correlation between methods was found for P, and the concentrations were related to biological data. Antlers showed lower mineralization than femur, with the lowest values in the third antler beam. A power function of mineralization vs. "mineral age" of antlers was found. Thus combined PIXE and PIGE of antlers may bring highly relevant insights in biomineralization research.

  5. The accretion halo in AM Herculis systems

    NASA Technical Reports Server (NTRS)

    Achilleos, N.; Wickramasinghe, D. T.; Wu, Kinwah

    1992-01-01

    Previous phase-resolved spectropolarimetric observations of the AM Herculis systems V834 Centauri (E1405-451) and EF Eridani have shown broad, Zeeman-shifted absorption features during the bright phases. These features are thought to be nonphotospheric in origin, and to arise from a cool 'halo' of unshocked gas surrounding the accretion shock on the surface of the white dwarf primary. Preliminary models for the accretion halo region are presented and these models are used to perform a more detailed analysis of the relevant data for these two systems than has previously been done. To explain the observed halo Zeeman features, geometries which are consistent with the presence of linearly extended cyclotron emission regions are required. Such regions have previously been deduced from different considerations by other investigators. The estimated masses for the accretion halo are comparable to the mass of the cyclotron emission region.

  6. Biological AMS at Uppsala University: Status report

    NASA Astrophysics Data System (ADS)

    Salehpour, Mehran; Forsgard, Niklas; Possnert, Göran

    2010-04-01

    In January 2007 a new research program was initiated at Uppsala University focusing on the biological applications of AMS. We have used a 5 MV Pelletron Tandem accelerator to study biological samples. With Microdosing applications in mind, a variety of measurements have been performed on human blood, plasma and urine that have been labeled with a 14C-labeled pharmaceutical drug covering a concentration range, spanning 3 orders of magnitude. Furthermore, by studying small sample amounts and low concentrations, we have demonstrated sensitivity in the hundred zeptomole range for a small pharmaceutical substance in human blood. Another application of interest, based on the enhanced 14C activity from the cold war bomb-peak, is dating of DNA molecules providing fundamental data for the regenerative medicine and stem cell research community. We show data on a sensitive carrier method for measuring the isotopic ratio of small biological sample in the few μgC range.

  7. French Pro/Am collaborations in exoplanet

    NASA Astrophysics Data System (ADS)

    Santerne, A.; Moutou, C.; Vanhuysse, M.; Bouchy, F.; Buil, C.; Cochard, F.; Thizy, O.; Martinez, P.; Desnoux, V.; Pujol, M.; Colas, F.

    2011-10-01

    Amateur astronomers have access to huge telescope time and can reach photometric precision up to a few mmag as well as radial velocity precision up to ˜ 50m.s-1 on brightest stars. We will first present some results of french amateur astronomers in transit photometry and radial velocity and then, we will present an over-view of all the collaborations which can be done between professional and amateur astronomers in the competitive exoplanet domain, and especially the current collaboration between french Pro & Am astronomers which was used in publication in A&A. Finally, we will present a new internet wiki page which goal is to develop such collaboration in different countries.

  8. Standards and Criteria for AMS School Accreditation.

    ERIC Educational Resources Information Center

    American Montessori Society, New York, NY.

    This pamphlet lists 15 standards, and criteria to be met to reach those standards, used in accrediting American Montessori Society schools. Part 1, dealing with institutional stability, describes standards and criteria for school organization and administration, financial practices and procedures, physical facilities, enrollment policies, child…

  9. Breadboard Facility

    NASA Technical Reports Server (NTRS)

    1977-01-01

    In the sixties, Chrysler was NASA's prime contractor for the Saturn I and IB test launch vehicles. The company installed and operated at Huntsville what was known as the Saturn I/IB Development Breadboard Facility. "Breadboard," means an array of electrical and electronic equipment for performing a variety of development and test functions. This work gave Chrysler a broad capability in computerized testing to assure quality control in development of solid-state electronic systems. Today that division is manufacturing many products not destined for NASA, most of them being associated with the company's automotive line. A major project is production and quality-control testing of the "lean-burn" engine, one that has a built-in Computer to control emission timing, and allow the engine to run on a leaner mixture of fuel and air. Other environment-related products include vehicle emission analyzers. The newest of the line is an accurate, portable solid state instrument for testing auto exhaust gases. The exhaust analyzers, now being produced for company dealers and for service

  10. 241Am and 243Am charge distributions from muonic x-ray spectroscopy and the quadrupole moment of the 240Am fission isomer

    NASA Astrophysics Data System (ADS)

    Johnson, M. W.; Shera, E. B.; Hoehn, M. V.; Naumann, R. A.; Zumbro, J. D.; Bemis, C. E.

    1985-10-01

    The muonic K, L, and M X-ray spectra from 241Am and 243Am have been investigated. Analysis of these spectra yields intrinsic nuclear quadrupole moments [Q0241 = 12.16(15) e b and Q0243 = 12.10(17) e b] and Barrett radii. By combining these results with those from a previous optical isotope-shift study, the intrinsic quadrupole moment for the fission isomer 240fAm is deduced [Q0240f = 29.0(1.3) e b].

  11. Am phases in the matrix of a U–Pu–Zr alloy with Np, Am, and rare-earth elements

    SciTech Connect

    Janney, Dawn E.; Kennedy, J. Rory; Madden, James W.; O’Holleran, Thomas P.

    2015-01-01

    Phases and microstructures in the matrix of an as-cast U-Pu-Zr alloy with 3 wt% Am, 2% Np, and 8% rare-earth elements were characterized by scanning and transmission electron microscopy. The matrix consists primarily of two phases, both of which contain Am: ζ-(U, Np, Pu, Am) (~70 at% U, 5% Np, 14% Pu, 1% Am, and 10% Zr) and δ-(U, Np, Pu, Am)Zr2 (~25% U, 2% Np, 10-15% Pu, 1-2% Am, and 55-60 at% Zr). These phases are similar to those in U-Pu-Zr alloys, although the Zr content in ζ-(U, Np, Pu, Am) is higher than that in ζ-(U, Pu) and the Zr content in δ-(U, Np, Pu, Am)Zr2 is lower than that in δ-UZr2. Nanocrystalline actinide oxides with structures similar to UO2 occurred in some areas, but may have formed by reactions with the atmosphere during sample handling. Planar features consisting of a central zone of ζ-(U, Np, Pu, Am) bracketed by zones of δ-(U, Np, Pu, Am)Zr2 bound irregular polygons ranging in size from a few micrometers to a few tens of micrometers across. The rest of the matrix consists of elongated domains of ζ-(U, Np, Pu, Am) and δ-(U, Np, Pu, Am)Zr2. Each of these domains is a few tens of nanometers across and a few hundred nanometers long. The domains display strong preferred orientations involving areas a few hundred nanometers to a few micrometers across.

  12. Evaluation of the Eberline AMS-3A and AMS-4 Beta continuous air monitors

    SciTech Connect

    Johnson, M.L.; Sisk, D.R.

    1996-03-01

    Eberline AMS-3A-1 and AMS-4 beta continuous air monitors were tested against the criteria set forth in the ANSI Standards N42.18, Specification and Performance of On-site Instrumentation for Continuously Monitoring Radioactivity in Effluents, and ANSI N42.17B, Performance Specification for Health Physics Instrumentation - Occupational Airborne Radioactivity Monitoring Instrumentation. ANSI N42.18 does not, in general, specify testing procedures for demonstrating compliance with the criteria set forth in the standard; therefore, wherever possible, the testing procedures given in ANSI N42.17B were adopted. In all cases, the more restrictive acceptance criteria and/or the more demanding test conditions of the two standards were used.

  13. Design of a synchronization system for the “Gamma-4” electrophysical facility

    NASA Astrophysics Data System (ADS)

    Grishin, A. V.; Glushkov, S. L.; Mironychev, B. P.; Kalashnikov, D. A.; Kozachek, A. V.; Martynov, V. M.; Turutin, V. V.; Sokolov, V. V.; Kul'Dushov, D. A.; Nazarenko, S. T.; Pavlov, V. S.; Shikhanova, T. F.

    2014-08-01

    At RFNC-VNIIEF on the basis of a “Gamma-1” high-current pulsed accelerator there is being developed a four-module “Gamma-4” electrophysical facility. A synchronization system of the "Gamma-4" facility is meant for a simultaneous (with precision not worse than ±3 ns) triggering of high-volt gas-filled trigatron type switches of modules' pulse forming systems (144 items, operating voltage ≤ 1 MV), modules' pre-pulse switches (24 items, ≤ 3 MV) and 8 Marx generators (40 items, ≤ 100 kV). The synchronization system comprises 54 pulse generators, involving 25 generators on the basis of water insulated forming lines with distributed parameters and multi-channel gas-filled switches. On matched cable loads with resistances 0.45 Ohm these generators form voltage pulses with amplitudes 100 kV with durations 25 ns. A jitter of switches of these generators does not exceed ± 2 ns. To raise the amplitude of pulse drivers of pulse forming system switches and pre-pulse switches of modules in the facility synchronization system there are used step-up transformers based on pulsed high-voltage cables.

  14. Pulmonary administration of Am80 regenerates collapsed alveoli.

    PubMed

    Sakai, Hitomi; Horiguchi, Michiko; Ozawa, Chihiro; Akita, Tomomi; Hirota, Keiji; Shudo, Koichi; Terada, Hiroshi; Makino, Kimiko; Kubo, Hiroshi; Yamashita, Chikamasa

    2014-12-28

    Chronic obstructive pulmonary disease (COPD) is an intractable pulmonary disease, which causes widespread and irreversible alveoli collapse. Nevertheless, there is no effective drug therapy that regenerates lung tissue or prevents the progression of COPD and clinical management of patients remains mostly supportive. The aim of this study was to evaluate whether Am80 is useful as a novel pulmonary emphysema therapeutic drug. In this study, we treated the human alveolar epithelial stem cells with Am80 to clarify the differentiation-inducing mechanism and administrated Am80 transpulmonarily into elastase-induced COPD model mice to evaluate the effect of Am80 on pulmonary emphysema. First, we accordingly investigated whether Am80 had a differentiation-inducing effect on human alveolar epithelial stem cells, Am80 induced differentiation of human alveolar epithelial stem cells to alveolar type I and II cells dose dependently, and the proportion of differentiated into type I and type II alveolar epithelial cells as a result of treatment with 10 μM of Am80 for 7 days was approximately 20%. Second, we attempted to identify the major factor involved in the differentiation-inducing effect of human alveolar epithelial stem cells induced by Am80 using microarray analysis. In a microarray analysis, WNT1, lectin, SLIT, chordin, ck12, ck11, and neurexin3 showed the largest variation in the Am80-treated group compared with the controls. In quantitative polymerase-chain-reaction assay, Am80 resulted in significant reduction in the WNT1 expression ratio whereas increase in the neurexin3 expression ratio. We evaluated the repairs effect for collapsed alveoli by Am80 of pulmonary administration. In untreated and Am80-treated mice the average CT value at 2 days was, respectively, -506 and -439 and there was a significant difference. Likewise, the assessment of the distance between alveolar walls, Lm, confirmed that there was a significant difference between control (68.0±3.8 μm) and

  15. 21 CFR 803.40 - If I am an importer, what kinds of individual adverse event reports must I submit, when must I...

    Code of Federal Regulations, 2010 CFR

    2010-04-01

    ... (CONTINUED) MEDICAL DEVICES MEDICAL DEVICE REPORTING Importer Reporting Requirements § 803.40 If I am an... facilities, individuals, or medical or scientific literature, whether published or unpublished, that... that one of your devices has malfunctioned and that this device or a similar device that you...

  16. 21 CFR 803.52 - If I am a manufacturer, what information must I submit in my individual adverse event reports?

    Code of Federal Regulations, 2011 CFR

    2011-04-01

    ... after your verification; (ii) For each event code provided by the user facility under § 803.32(e)(10) or... ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES (CONTINUED) MEDICAL DEVICES MEDICAL DEVICE REPORTING Manufacturer Reporting Requirements § 803.52 If I am a manufacturer, what information must I submit in...

  17. 40 CFR 310.5 - Am I eligible for reimbursement?

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 40 Protection of Environment 29 2013-07-01 2013-07-01 false Am I eligible for reimbursement? 310.5 Section 310.5 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SUPERFUND, EMERGENCY... HAZARDOUS SUBSTANCE RELEASES Provisions Who Can Be Reimbursed? § 310.5 Am I eligible for reimbursement?...

  18. 40 CFR 310.5 - Am I eligible for reimbursement?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 29 2012-07-01 2012-07-01 false Am I eligible for reimbursement? 310.5 Section 310.5 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SUPERFUND, EMERGENCY... HAZARDOUS SUBSTANCE RELEASES Provisions Who Can Be Reimbursed? § 310.5 Am I eligible for reimbursement?...

  19. 40 CFR 310.5 - Am I eligible for reimbursement?

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 40 Protection of Environment 28 2014-07-01 2014-07-01 false Am I eligible for reimbursement? 310.5 Section 310.5 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SUPERFUND, EMERGENCY... HAZARDOUS SUBSTANCE RELEASES Provisions Who Can Be Reimbursed? § 310.5 Am I eligible for reimbursement?...

  20. 40 CFR 310.5 - Am I eligible for reimbursement?

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 40 Protection of Environment 27 2010-07-01 2010-07-01 false Am I eligible for reimbursement? 310.5 Section 310.5 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SUPERFUND, EMERGENCY... HAZARDOUS SUBSTANCE RELEASES Provisions Who Can Be Reimbursed? § 310.5 Am I eligible for reimbursement?...

  1. 40 CFR 310.5 - Am I eligible for reimbursement?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 28 2011-07-01 2011-07-01 false Am I eligible for reimbursement? 310.5 Section 310.5 Protection of Environment ENVIRONMENTAL PROTECTION AGENCY (CONTINUED) SUPERFUND, EMERGENCY... HAZARDOUS SUBSTANCE RELEASES Provisions Who Can Be Reimbursed? § 310.5 Am I eligible for reimbursement?...

  2. 47 CFR 1.571 - Processing AM broadcast station applications.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 47 Telecommunication 1 2010-10-01 2010-10-01 false Processing AM broadcast station applications. 1.571 Section 1.571 Telecommunication FEDERAL COMMUNICATIONS COMMISSION GENERAL PRACTICE AND PROCEDURE Broadcast Applications and Proceedings General Filing Requirements § 1.571 Processing AM broadcast...

  3. Application of TOS/AMS to TDRS E and F

    NASA Technical Reports Server (NTRS)

    1984-01-01

    The development of the Transfer Orbit Stage (TOS) and the study of an Apogee and Maneuvering Stage (AMS) to be used in conjunction with the TOS are presented. A definition of the TOS/AMS configuration is provided along with a detailed design analysis including layout drawings, component definition, performance, sts and spacecraft interface definition, schedules, cost estimates, and specifications documents.

  4. Some Validation Data for the Achievement Motives Scale (AMS).

    ERIC Educational Resources Information Center

    Rand, Per

    1978-01-01

    A Norwegian version of the Achievement Motives Scale (AMS) was administered to Oslo sixth-graders, along with verbal, numeric, test anxiety, and lie/defensiveness tests. Results showed the relationships to academic performance predicted by achievement theory. Even when related to the personality scales, the AMS showed promising qualities.…

  5. 50 CFR 648.201 - AMs and harvest controls.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... Atlantic Herring Fishery § 648.201 AMs and harvest controls. (a) AMs. (1) Management area closure. If NMFS..., transferring, or landing >2,000 lb (907.2 kg) of Atlantic herring per trip in such an area, and from landing herring more than once per calendar day, except as provided in paragraphs (b) and (c) of this...

  6. Beam optics of the AmPS extraction line

    NASA Astrophysics Data System (ADS)

    Hoekstra, R.

    1991-01-01

    The beam optics of the AmPS (Amsterdam Pulse Stretcher) are described. Definitions are outlined, and the beam elements and parameters are given. Developments relating to the electrostatic septum, chicane, beam transformer and bending through 90 degrees are described. The performance of the AmPS and beam diagnostics are discussed.

  7. On-farm Production and Utilization of AM Fungus Inoculum

    Technology Transfer Automated Retrieval System (TEKTRAN)

    On-farm production of arbuscular mycorrhizal [AM] fungus inoculum can make the benefits to crop growth and yield of inoculation with AM fungi available to more farmers by reducing costs. This article details the step by step procedure and management decisions that are needed for the on-farm product...

  8. Plant uptake and transport of /sup 241/Am

    SciTech Connect

    Wallace, A.; Romney, E.M.; Mueller, R.T. Sr.; soufi, S.M.

    1981-07-01

    We conducted several experiments with /sup 241/Am to obtain a more complete understanding of how this transuranium element is absorbed and transported in plants. In a plant species (Tamarix pentandra Pall.) that has salt glands in the leaves excreting NaCl and other ions, /sup 241/Am was not pumped through these glands. Cyanide, which forms complexes with any metals, when applied to a calcareous soil, greatly increased the transport of /sup 241/Am into stems and leaves of bush bean plants. Radioactive cyanide (/sup 14/C) was also transported to leaves and stems. When radish was grown in both calcareous and noncalcareous soils, /sup 241/Am appeared to be fixed on the peel so firmly that it was resistant to removal by HNO/sub 3/ washing. The chelating agent DTPA induced increased transport of /sup 241/Am to leaves and into the fleshy roots of the radish.

  9. Biochemical paths in humans and cells: Frontiers of AMS bioanalysis

    NASA Astrophysics Data System (ADS)

    Vogel, J. S.; Palmblad, N. M.; Ognibene, T.; Kabir, M. M.; Buchholz, B. A.; Bench, G.

    2007-06-01

    The publication rate of 3H and 14C use in biomedical research decreased by a factor of three since 1990 when the first applications of AMS in biomedicine were published. Against this decrease, the high sensitivity of AMS for these isotopes in small isolated samples has made significant contributions. New smaller spectrometers and increased commercial availability of AMS have solved some of the issues surrounding availability and cost, but improved quantitation in non-isotopic methods now compete with some early uses of AMS. We review the strength of AMS for quantifying rare biochemical events and chemical passages through individual people or cells and consider these as the frontiers of quantitation leading to profitable science unavailable to other techniques.

  10. Methods and applications of HPLC-AMS

    NASA Astrophysics Data System (ADS)

    Buchholz, Bruce A.; Dueker, Stephen R.; Lin, Yumei; Clifford, Andrew J.; Vogel, John S.

    2000-10-01

    Pharmacokinetics of physiologic doses of nutrients, pesticides, and herbicides can easily be traced in humans using a 14C-labeled compound. Basic kinetics can be monitored in blood or urine by measuring the elevation in the 14C content above the control predose tissue and converting to equivalents of the parent compound. High performance liquid chromatography (HPLC) is an excellent method for the chemical separation of complex mixtures whose profiles afford estimation of biochemical pathways of metabolism. Compounds elute from the HPLC systems with characteristic retention times and can be collected in fractions that can then be graphitized for AMS measurement. Unknowns are tentatively identified by co-elution with known standards and chemical tests that reveal functional groupings. Metabolites are quantified with the 14C signal. Thoroughly accounting for the carbon inventory in the LC solvents, ion-pairing agents, samples, and carriers adds some complexity to the analysis. In most cases the total carbon inventory is dominated by carrier. Baseline background and stability need to be carefully monitored. Limits of quantitation near 10 amol of 14C per HPLC fraction are typically achieved. Baselines are maintained by limiting injected 14C activity <0.17 Bq (4.5 pCi) on the HPLC column.

  11. Actinides AMS at CIRCE in Caserta (Italy)

    NASA Astrophysics Data System (ADS)

    De Cesare, M.; Gialanella, L.; Rogalla, D.; Petraglia, A.; Guan, Y.; De Cesare, N.; D'Onofrio, A.; Quinto, F.; Roca, V.; Sabbarese, C.; Terrasi, F.

    2010-04-01

    The operation of Nuclear Power Plants and atmospheric tests of nuclear weapons performed in the past, together with production, transport and reprocessing of nuclear fuel, lead to the release into the environment of a wide range of radioactive nuclides, such as uranium, plutonium, fission and activation products. These nuclides are present in the environment at ultra trace levels. Their detection requires sensitive techniques like AMS (Accelerator Mass Spectrometry). In order to perform isotopic ratio measurements of the longer-lived actinides, e.g., of 236U relative to the primary 238U and various Pu isotopes relative to 239Pu, an upgrade of the CIRCE accelerator (Center for Isotopic Research on Cultural and Environmental Heritage) in Caserta, Italy, is underway. In this paper we report on the results of simulations aiming to define the best ion optics and to understand the origin of possible measurement background. The design of a high resolution TOF- E (Time of Flight-Energy) detector system is described, which will be used to identify the rare isotopes among interfering background signals.

  12. R2 REGULATED FACILITIES

    EPA Science Inventory

    The Facility Registry System (FRS) is a centrally managed database that identifies facilities, sites or places subject to environmental regulations or of environmental interest. FRS creates high-quality, accurate, and authoritative facility identification records through rigorous...

  13. A dedicated AMS (accelerator mass spectrometry) facility for sup 3 H and sup 14 C

    SciTech Connect

    Roberts, M.L.; Southon, J.R.; Davis, J.C.; Proctor, I.D.; Nelson, D.E.

    1990-09-01

    Accelerator mass spectrometry is a high sensitivity technique for the detection of numerous long-lived radionuclides at extremely low concentrations. The present use of this measurement tool is primarily in archaeology and the geosciences. However, novel applications and technological advancements that can have a significant impact on both biomedical research and clinical procedures and environmental investigations have been identified. We are studying a small spectrometer for the simultaneous injection and detection of both hydrogen and carbon radioisotopes. 8 refs., 3 figs.

  14. AMS studies in Portuguese variscan granites

    NASA Astrophysics Data System (ADS)

    Sant'Ovaia, Helena; Martins, Helena; Noronha, Fernando

    2014-05-01

    A large volume of Variscan granitic rocks outcrop in Central Iberian Zone which are well documented concerning geological mapping, petrography and geochemistry but whose magnetic characteristics and fabric remain unknown. In this study we summarize the available AMS data from approximately 644 sampling stations (5152 samples) on different massifs of Variscan Portuguese granites. Despite their different geological, petrographic and geochemical characteristics, magnetic susceptibility (K) values obtained for the majority of the studied granites range from 15 to 300 × 10-6 SI. The dominant paramagnetic behaviour of the granite bodies reflects the presence of ilmenite as the main iron oxide. This feature indicates the reduced conditions involved in the granite melt formation during the Variscan orogeny. The two-mica granites show K values ranging between 15 to 70 × 10-6 SI which are lower than values displayed by the biotite-rich facies scattered within the interval of 70 and 300 × 10-6 SI. The magnetite-bearing granites are scarce but represented in Lavadores, Gerês and Manteigas. Even so, only the Lavadores body could be considered as a true magnetite-type granite (K >3.0 × 10-3 SI) in face of its K, comprised between 1550 and 19303 × 10-6 SI. Magnetic anisotropy can be used as a "marker" for the deformation experienced by granite mushes during their crustal emplacement and further cooling. Magnetic anisotropy can thus be correlated with the finite deformation of a rock, as record by mineral fabrics. Post-tectonic granites, such as those from Vila Pouca de Aguiar, Pedras Salgadas, Caria, Vila da Ponte, Chaves and Lamas de Olo, have a magnetic anisotropy <2.5% which corresponds to a deformation hardly visible to the naked eye. Nevertheless, at microscopic scale, these granites display almost ubiquitous magmatic to submagmatic microstructures (rare wavy extinction in quartz, erratic subgrain boundaries in quartz and, eventually, folded or kinked biotites). For

  15. AM(VI) PARTITIONING STUDIES: FY14 FINAL REPORT

    SciTech Connect

    Bruce J Mincher

    2014-10-01

    The use of higher oxidation states of americium in partitioning from the lanthanides is under continued investigation by the sigma team. This is based on the hypothesis that Am(VI) can be produced and remain stable in irradiated first cycle raffinate solution long enough to perform solvent extraction for separations. The stability of Am(VI) to autoreduction was measured using millimolar americium concentrations in a 1-cm cell with a Cary 6000 UV/Vis spectrophotometer for data acquisition. At millimolar americium concentrations, Am(VI) is stable enough against its own autoreduction for separations purposes. A second major accomplishment during FY14 was the hot test. Americium oxidation and extraction was performed using a centrifugal contactor-based test bed consisting of an extraction stage and two stripping stages. Sixty-three percent americium extraction was obtained in one extraction stage, in agreement with batch contacts. Promising electrochemical oxidation results have also been obtained, using terpyridine ligand derivatized electrodes for binding of Am(III). Approximately 50 % of the Am(III) was oxidized to Am(V) over the course of 1 hour. It is believed that this is the first demonstration of the electrolytic oxidation of americium in a non-complexing solution. Finally, an initial investigation of Am(VI) extraction using diethylhexylbutyramide (DEHBA) was performed.

  16. Guide to research facilities

    SciTech Connect

    Not Available

    1993-06-01

    This Guide provides information on facilities at US Department of Energy (DOE) and other government laboratories that focus on research and development of energy efficiency and renewable energy technologies. These laboratories have opened these facilities to outside users within the scientific community to encourage cooperation between the laboratories and the private sector. The Guide features two types of facilities: designated user facilities and other research facilities. Designated user facilities are one-of-a-kind DOE facilities that are staffed by personnel with unparalleled expertise and that contain sophisticated equipment. Other research facilities are facilities at DOE and other government laboratories that provide sophisticated equipment, testing areas, or processes that may not be available at private facilities. Each facility listing includes the name and phone number of someone you can call for more information.

  17. STS-112 Atlantis landing at KSC's shuttle landing facility

    NASA Technical Reports Server (NTRS)

    2002-01-01

    KENNEDY SPACE CENTER, FLA. - Space Shuttle Atlantis approaches the runway at the Shuttle Landing Facility, completing the 4.5-million-mile journey to the International Space Station. Main gear touchdown occurred at 11:43:40 a.m. EDT; nose gear touchdown at 11:43:48 a.m.; and wheel stop at 11:44:35 a.m. Mission elapsed time was 10:19:58:44. Mission STS-112 expanded the size of the Station with the addition of the S1 truss segment. The returning crew of Atlantis are Commander Jeffrey Ashby, Pilot Pamela Melroy, and Mission Specialists David Wolf, Piers Sellers, Sandra Magnus and Fyodor Yurchikhin. This landing is the 60th at KSC in the history of the Shuttle program.

  18. STS-112 Atlantis landing at KSC's shuttle landing facility

    NASA Technical Reports Server (NTRS)

    2002-01-01

    KENNEDY SPACE CENTER, FLA. - Space Shuttle Atlantis drops to the runway at the Shuttle Landing Facility, completing the 4.5-million-mile journey to the International Space Station. Main gear touchdown occurred at 11:43:40 a.m. EDT; nose gear touchdown at 11:43:48 a.m.; and wheel stop at 11:44:35 a.m. Mission elapsed time was 10:19:58:44. Mission STS-112 expanded the size of the Station with the addition of the S1 truss segment. The returning crew of Atlantis are Commander Jeffrey Ashby, Pilot Pamela Melroy, and Mission Specialists David Wolf, Piers Sellers, Sandra Magnus and Fyodor Yurchikhin. This landing is the 60th at KSC in the history of the Shuttle program.

  19. STS-112 Atlantis landing at KSC's shuttle landing facility

    NASA Technical Reports Server (NTRS)

    2002-01-01

    KENNEDY SPACE CENTER, FLA. -- Its drag chute deployed, Space Shuttle Atlantis slows to a stop after touchdown on Runway 33 at the Shuttle Landing Facility, completing the 4.5-million-mile journey to the International Space Station. Main gear touchdown occurred at 11:43:40 a.m. EDT; nose gear touchdown at 11:43:48 a.m.; and wheel stop at 11:44:35 a.m. Mission elapsed time was 10:19:58:44. Mission STS-112 expanded the size of the Station with the addition of the S1 truss segment. The returning crew of Atlantis are Commander Jeffrey Ashby, Pilot Pamela Melroy, and Mission Specialists David Wolf, Piers Sellers, Sandra Magnus and Fyodor Yurchikhin. This landing is the 60th at KSC in the history of the Shuttle program. .

  20. STS-112 Atlantis landing at KSC's shuttle landing facility

    NASA Technical Reports Server (NTRS)

    2002-01-01

    KENNEDY SPACE CENTER, FLA. -- Space Shuttle Atlantis stirs up dust as it touches down on Runway 33 at the Shuttle Landing Facility, completing the 4.5-million-mile journey to the International Space Station. Main gear touchdown occurred at 11:43:40 a.m. EDT; nose gear touchdown at 11:43:48 a.m.; and wheel stop at 11:44:35 a.m. Mission elapsed time was 10:19:58:44. Mission STS-112 expanded the size of the Station with the addition of the S1 truss segment. The returning crew of Atlantis are Commander Jeffrey Ashby, Pilot Pamela Melroy, and Mission Specialists David Wolf, Piers Sellers, Sandra Magnus and Fyodor Yurchikhin. This landing is the 60th at KSC in the history of the Shuttle program. .

  1. STS-112 Atlantis landing at KSC's shuttle landing facility

    NASA Technical Reports Server (NTRS)

    2002-01-01

    KENNEDY SPACE CENTER, FLA. - A fire rescue truck stands by for safety reasons as Space Shuttle Atlantis slows to a stop on Runway 33 at the Shuttle Landing Facility, completing the 4.5-million-mile journey to the International Space Station. Main gear touchdown occurred at 11:43:40 a.m. EDT; nose gear touchdown at 11:43:48 a.m.; and wheel stop at 11:44:35 a.m. Mission elapsed time was 10:19:58:44. Mission STS-112 expanded the size of the Station with the addition of the S1 truss segment. The returning crew of Atlantis are Commander Jeffrey Ashby, Pilot Pamela Melroy, and Mission Specialists David Wolf, Piers Sellers, Sandra Magnus and Fyodor Yurchikhin. This landing is the 60th at KSC in the history of the Shuttle program. .

  2. Aerial Measuring System (AMS) Baseline Surveys for Emergency Planning

    SciTech Connect

    Lyons, C

    2012-06-04

    Originally established in the 1960s to support the Nuclear Test Program, the AMS mission is to provide a rapid and comprehensive worldwide aerial measurement, analysis, and interpretation capability in response to a nuclear/radiological emergency. AMS provides a responsive team of individuals whose processes allow for a mission to be conducted and completed with results available within hours. This presentation slide-show reviews some of the history of the AMS, summarizes present capabilities and methods, and addresses the value of the surveys.

  3. Search for Dark Matter with the AMS experiment

    SciTech Connect

    Palomares, Carmen

    2006-11-28

    The Alpha Magnetic Spectrometer (AMS) is a particle physics detector designed to operate on the International Space Station (ISS). The aim of AMS is the direct detection of charged particles in the rigidity range from 0.5 GV to few TV erform high statistics studies of cosmic rays in space and search for antimatter and dark matter. The most favored candidate to conform the cold dark matter is a non-relativistic interacting, massive particle (WIMP). AMS will be able to detect simultaneously the main signatures of the annihilation of such as particle: {gamma}, e+,p-bar in an energy range never reached before.

  4. AM noise impact on low level phase noise measurements.

    PubMed

    Cibiel, Gilles; Régis, Myrianne; Tournier, Eric; Llopis, Oliver

    2002-06-01

    The influence of the source AM noise in microwave residual phase noise experiments is investigated. The noise floor degradation problem, caused by the parasitic detection of this type of noise by an unperfectly balanced mixer, is solved thanks to a refinement of the quadrature condition. The parasitic noise contribution attributable to the AM to PM (phase modulation) conversion occurring in the device under test is minimized through the development of a dedicated microwave source featuring an AM noise level as low as -170 dBc/Hz at 10 kHz offset from a 3.5 GHz carrier. PMID:12075970

  5. Comparative Convergence Analysis of Nonlinear AMLI-Cycle Multigrid

    SciTech Connect

    Hu, Xiaozhe; Vassilevski, Panayot S.; Xu, Jinchao

    2013-04-30

    The purpose of our paper is to provide a comprehensive convergence analysis of the nonlinear algebraic multilevel iteration (AMLI)-cycle multigrid (MG) method for symmetric positive definite problems. We show that the nonlinear AMLI-cycle MG method is uniformly convergent, based on classical assumptions for approximation and smoothing properties. Furthermore, under only the assumption that the smoother is convergent, we show that the nonlinear AMLI-cycle method is always better (or not worse) than the respective V-cycle MG method. Finally, numerical experiments are presented to illustrate the theoretical results.

  6. Sports Facility Management.

    ERIC Educational Resources Information Center

    Walker, Marcia L., Ed.; Stotlar, David K., Ed.

    The numbers of both sports facility management college courses and sport and exercise facilities are increasing, along with the need for an understanding of the trends and management concepts of these facilities. This book focuses exclusively on managing facilities where sporting events occur and includes examples in physical education, athletics,…

  7. Future Fixed Target Facilities

    SciTech Connect

    Melnitchouk, Wolodymyr

    2009-01-01

    We review plans for future fixed target lepton- and hadron-scattering facilities, including the 12 GeV upgraded CEBAF accelerator at Jefferson Lab, neutrino beam facilities at Fermilab, and the antiproton PANDA facility at FAIR. We also briefly review recent theoretical developments which will aid in the interpretation of the data expected from these facilities.

  8. "DIANA" - A New, Deep-Underground Accelerator Facility for Astrophysics Experiments

    SciTech Connect

    Leitner, M.; Leitner, D.; Lemut, A.; Vetter, P.; Wiescher, M.

    2009-05-28

    The DIANA project (Dakota Ion Accelerators for Nuclear Astrophysics) is a collaboration between the University of Notre Dame, University of North Carolina, Western Michigan University, and Lawrence Berkeley National Laboratory to build a nuclear astrophysics accelerator facility 1.4 km below ground. DIANA is part of the US proposal DUSEL (Deep Underground Science and Engineering Laboratory) to establish a cross-disciplinary underground laboratory in the former gold mine of Homestake in South Dakota, USA. DIANA would consist of two high-current accelerators, a 30 to 400 kV variable, high-voltage platform, and a second, dynamitron accelerator with a voltage range of 350 kV to 3 MV. As a unique feature, both accelerators are planned to be equipped with either high-current microwave ion sources or multi-charged ECR ion sources producing ions from protons to oxygen. Electrostatic quadrupole transport elements will be incorporated in the dynamitron high voltage column. Compared to current astrophysics facilities, DIANA could increase the available beam densities on target by magnitudes: up to 100 mA on the low energy accelerator and several mA on the high energy accelerator. An integral part of the DIANA project is the development of a high-density super-sonic gas-jet target which can handle these anticipated beam powers. The paper will explain the main components of the DIANA accelerators and their beam transport lines and will discuss related technical challenges.

  9. Reliable Facility Location Problem with Facility Protection.

    PubMed

    Tang, Luohao; Zhu, Cheng; Lin, Zaili; Shi, Jianmai; Zhang, Weiming

    2016-01-01

    This paper studies a reliable facility location problem with facility protection that aims to hedge against random facility disruptions by both strategically protecting some facilities and using backup facilities for the demands. An Integer Programming model is proposed for this problem, in which the failure probabilities of facilities are site-specific. A solution approach combining Lagrangian Relaxation and local search is proposed and is demonstrated to be both effective and efficient based on computational experiments on random numerical examples with 49, 88, 150 and 263 nodes in the network. A real case study for a 100-city network in Hunan province, China, is presented, based on which the properties of the model are discussed and some managerial insights are analyzed. PMID:27583542

  10. 33 CFR 334.1290 - In Bering Sea, Shemya Island Area, Alaska; meteorological rocket launching facility, Alaskan Air...

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ..., Alaska; meteorological rocket launching facility, Alaskan Air Command, U.S. Air Force. 334.1290 Section...; meteorological rocket launching facility, Alaskan Air Command, U.S. Air Force. (a) The danger zone. An arc of a...) Rockets will normally be launched one each day Monday through Friday between 9 a.m. and 3 p.m....

  11. 33 CFR 334.1290 - In Bering Sea, Shemya Island Area, Alaska; meteorological rocket launching facility, Alaskan Air...

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ..., Alaska; meteorological rocket launching facility, Alaskan Air Command, U.S. Air Force. 334.1290 Section...; meteorological rocket launching facility, Alaskan Air Command, U.S. Air Force. (a) The danger zone. An arc of a...) Rockets will normally be launched one each day Monday through Friday between 9 a.m. and 3 p.m....

  12. 33 CFR 334.1290 - In Bering Sea, Shemya Island Area, Alaska; meteorological rocket launching facility, Alaskan Air...

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ..., Alaska; meteorological rocket launching facility, Alaskan Air Command, U.S. Air Force. 334.1290 Section...; meteorological rocket launching facility, Alaskan Air Command, U.S. Air Force. (a) The danger zone. An arc of a...) Rockets will normally be launched one each day Monday through Friday between 9 a.m. and 3 p.m....

  13. 33 CFR 334.1290 - In Bering Sea, Shemya Island Area, Alaska; meteorological rocket launching facility, Alaskan Air...

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ..., Alaska; meteorological rocket launching facility, Alaskan Air Command, U.S. Air Force. 334.1290 Section...; meteorological rocket launching facility, Alaskan Air Command, U.S. Air Force. (a) The danger zone. An arc of a...) Rockets will normally be launched one each day Monday through Friday between 9 a.m. and 3 p.m....

  14. 33 CFR 334.1290 - In Bering Sea, Shemya Island Area, Alaska; meteorological rocket launching facility, Alaskan Air...

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ..., Alaska; meteorological rocket launching facility, Alaskan Air Command, U.S. Air Force. 334.1290 Section...; meteorological rocket launching facility, Alaskan Air Command, U.S. Air Force. (a) The danger zone. An arc of a...) Rockets will normally be launched one each day Monday through Friday between 9 a.m. and 3 p.m....

  15. 33 CFR 103.300 - Area Maritime Security (AMS) Committee.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... direction of the COTP and shall assist in the development, review, and update of the AMS Plan for their area of responsibility. For the purposes of this subchapter, Port Security Committees that...

  16. 33 CFR 103.300 - Area Maritime Security (AMS) Committee.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... direction of the COTP and shall assist in the development, review, and update of the AMS Plan for their area of responsibility. For the purposes of this subchapter, Port Security Committees that...

  17. Am I at Risk? | NIH MedlinePlus the Magazine

    MedlinePlus

    ... please turn JavaScript on. Feature: The Challenge of COPD Am I at Risk? Past Issues / Fall 2014 ... or the American Lung Association's COPD information section. COPD Learn More Breathe Better ® Program The COPD Learn ...

  18. Radio emission from AM Herculis-type binaries

    NASA Technical Reports Server (NTRS)

    Chanmugam, G.; Dulk, G. A.

    1982-01-01

    A VLA search for 4.9 GHz radiation from the magnetic cataclysmic variable AM Her, along with the similar EF Eri binary, has led to the discovery of AM Her radio emission having a flux density of 0.67 + or - 0.052 mJy, where 1 mJy is equal to 10 to the -29th W/sq m per Hz. Neither AM Her circular polarization nor EF Eri were detected. The AM Her data are shown to be consistent with a model in which radiation is due to geosynchrotron emission from electrons of energies of a few hundred keV, which are trapped in the magnetosphere of the white dwarf element of the cataclysmic variable.

  19. 78 FR 69629 - Revitalization of the AM Radio Service

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-11-20

    ... addition to the standard general contact information, FCC Form 338 solicits minimal technical data, as well...- friendly features such as real-time data and information displays. The AM band is also subject...

  20. 66. INTERIOR VIEW OF THE COOLING BUILDING, LOOKING AM DAMPERS, ...

    Library of Congress Historic Buildings Survey, Historic Engineering Record, Historic Landscapes Survey

    66. INTERIOR VIEW OF THE COOLING BUILDING, LOOKING AM DAMPERS, HIGH TEMPERATURE AND LOW TEMPERATURE COOLERS. APRIL 11, 1919. - United States Nitrate Plant No. 2, Reservation Road, Muscle Shoals, Muscle Shoals, Colbert County, AL

  1. Synthesis of Am80 (tamibarotene) prodrug candidates, congeners and metabolites.

    PubMed

    Muratake, Hideaki; Amano, Yohei; Toda, Takahiro; Sugiyama, Kiyoshi; Shudo, Koichi

    2013-01-01

    Compound 1 (IT-M-07000) was previously reported as a candidate prodrug of Am80 (Tamibarotene; used to treat acute promyelocytic leukemia), and shown to be efficiently metabolized to Am80 via β-oxidation. Here, we describe in detail the synthesis of 1, together with another tetradeuterated candidate prodrug, IT-YA-00616 (2), as well as two congeners, and several metabolic intermediates of 1 previously detected in mouse plasma. PMID:23902867

  2. Column strength of magnesium alloy AM-57S

    NASA Technical Reports Server (NTRS)

    Holt, M

    1942-01-01

    Tests were made to determine the column strength of extruded magnesium alloy AM-57S. Column specimens were tested with round ends and with flat ends. It was found that the compressive properties should be used in computations for column strengths rather than the tensile properties because the compressive yield strength was approximately one-half the tensile yield strength. A formula for the column strength of magnesium alloy AM-57S is given.

  3. Counting Statistics and Ion Interval Density in AMS

    SciTech Connect

    Vogel, J S; Ognibene, T; Palmblad, M; Reimer, P

    2004-08-03

    Confidence in the precisions of AMS and decay measurements must be comparable for the application of the {sup 14}C calibration to age determinations using both technologies. We confirmed the random nature of the temporal distribution of {sup 14}C ions in an AMS spectrometer for a number of sample counting rates and properties of the sputtering process. The temporal distribution of ion counts was also measured to confirm the applicability of traditional counting statistics.

  4. Chernobyl accident and the problem of {sup 241}Am

    SciTech Connect

    Pazukhin, E.M.; Drozd, I.P.; Tokarevskii, V.V.

    1995-07-01

    The accumulation and decay of {sup 241}Am formed in the reactor of the fourth block of the Chernobyl atomic energy station at the time of the accident of April 26, 1986 are analyzed. Possible pathways for {sup 241}Am uptake in man are examined. The maximum equivalent dose after 70 years is estimated for a critical population living at the edge of the exclusion zone.

  5. 129I AMS at 0.5 MV tandem accelerator

    NASA Astrophysics Data System (ADS)

    Alfimov, Vasily; Synal, Hans-Arno

    2010-04-01

    The 129I measurement program has been established at the 0.5 MV 'Tandy' accelerator of the PSI/ETH Zürich AMS facility. This development was made possible by using a SiN window instead of Mylar one in a gas ionization detector. The setting up of the 129I measurement at Tandy is simple, the acquired performance is stable and reliable, and the quality of results is equal to or better than at our larger EN-tandem. With this setup, high sample throughput, which is required in many 129I studies, can be easily achieved. The measurements are performed in the +3 charge state. At this charge state the major difficulty in the 129I +3 identification is caused by a highly abundant 43 +1 ( m = 43, q = +1) molecule interference. This is a positive molecular ion, because its intensity reduces exponentially with an increase in gas stripper pressure. We conclude that this molecule is 27Al 16O + ( m/ q = 43/1 = 129/3) and comes from the break-up of (Al 2O 3 + Al) - ( m = 129) precursor at the terminal: (Al 2O 3 + Al) - → 27Al 16O +. The expected isobaric interferences 43Ca +1 and 86Sr +2, which also originate from the break-up of molecules in the stripper, were found to be low and do not disturb the 129I +3 measurements. The best repeatable performance with our standard sample material was achieved at 0.14 μg/cm 2 Ar gas stripper pressure with machine blanks showing ˜6 × 10 -14 normalized 129I/I ratio and 9% transmission through the accelerator. However, high 27Al 16O + molecular rates were observed from the user samples, and in order to destroy these molecules we had to increase the stripper pressure to ˜0.22 μg/cm 2. This increase in the stripper pressure degraded the machine blank values to ˜9 × 10 -14 and reduced transmission to 8%. Nevertheless, the achieved measurement conditions are sufficient for measurement of nearly all 129I samples that have been submitted to PSI/ETH over the last few years.

  6. Counting 241Am in the BfS human skull phantom on contact-evaluation in the human monitoring laboratory.

    PubMed

    Li, Chunsheng; Hauck, Barry; Capello, Kevin; Nogueira, Pedro; Lopez, Maria A; Kramer, Gary H

    2015-03-01

    Skull counting can be used to assess the activity of radionuclides internally deposited in the bone. The Human Monitoring Laboratory (HML) at Health Canada conducted the measurement of 241Am in the BfS (Bundesamt für Strahlenschuts) skull phantom on contact with the skull for various positions. By placing the detector in contact, the HML can improve the counting efficiency by over 20% compared to placing the detector 1 cm above the surface of the skull. Among all the positions tested, the forehead position is the preferred counting geometry due to the design of HML's counting facility and the comfort it would provide to the individual being counted, although this counting position did not offer the highest counting efficiency for the gamma rays (either the 59.5 keV or the 26.3 keV) emitted by 241Am. PMID:25627952

  7. Angle Measurement System (AMS) for Establishing Model Pitch and Roll Zero, and Performing Single Axis Angle Comparisons

    NASA Technical Reports Server (NTRS)

    Crawford, Bradley L.

    2007-01-01

    The angle measurement system (AMS) developed at NASA Langley Research Center (LaRC) is a system for many uses. It was originally developed to check taper fits in the wind tunnel model support system. The system was further developed to measure simultaneous pitch and roll angles using 3 orthogonally mounted accelerometers (3-axis). This 3-axis arrangement is used as a transfer standard from the calibration standard to the wind tunnel facility. It is generally used to establish model pitch and roll zero and performs the in-situ calibration on model attitude devices. The AMS originally used a laptop computer running DOS based software but has recently been upgraded to operate in a windows environment. Other improvements have also been made to the software to enhance its accuracy and add features. This paper will discuss the accuracy and calibration methodologies used in this system and some of the features that have contributed to its popularity.

  8. LANDSAT-D data format control book. Volume 6, appendix G: GSFC HDT-AM inventory tape (GHIT-AM)

    NASA Technical Reports Server (NTRS)

    1981-01-01

    The data format specifications of the Goddard HDT inventory tapes (GHITS), which accompany shipments of archival digital multispectral scanner image data (HDT-AM tapes), are defined. The GHIT is a nine-track, 1600-BPI tape which conforms to the ANSI standard and serves as an inventory and description of the image data included in the shipment. The archival MSS tapes (HDT-AMs) contain radiometrically corrected but geometrically uncorrected image data plus certain ancillary data necessary to perform the geometric corrections.

  9. High- and low-Am RE inclusion phases in a U-Np-Pu-Am-Zr alloy

    NASA Astrophysics Data System (ADS)

    Janney, Dawn E.; Madden, James W.; O'Holleran, Thomas P.

    2015-03-01

    Structural, microstructural, and microchemical data were collected from rare-earth inclusions in an as-cast U-Pu-Zr alloy with ∼3 at.% Am, 2% Np, and 9% rare-earth elements (La, Ce, Pr, and Nd). Two RE phases with different concentrations of Am were identified. The composition of high-Am RE inclusions is ∼2-5 at.% La, 15-20% Ce, 5-10% Pr, 25-45% Nd, 1% Np, 5-10% Pu, and 10-20% Am. Some areas also have O, although this does not appear to be an essential part of the high-Am RE phase. The inclusions have a face-centered cubic structure with a lattice parameter a ∼ 0.54 nm. The composition of the only low-Am RE inclusion studied in detail is ∼35-40 at.% O, 40-45% Nd, 1-2% Zr, 4-5% La, 9-10% Ce, and 6-7% Pr. This inclusion is an oxide with a crystal structure similar to the room-temperature structure of Nd2O3. Microstructural features suggest that oxidation occurred during casting, and that early crystallization of high-temperature oxides led to formation of two distinct RE phases.

  10. High- and low-Am RE inclusion phases in a U-Np-Pu-Am-Zr alloy

    SciTech Connect

    Janney, Dawn E.; Madden, James W.; O'Holleran, Thomas P.; Kennedy, J. Rory

    2015-03-01

    Structural, microstructural, and microchemical data were collected from rare-earth inclusions in an as-cast U-Pu-Zr alloy with ~3 at% Am, 2% Np, and 9% rare-earth elements (La, Ce, Pr, and Nd). Two RE phases with different concentrations of Am were identified. The composition of high-Am RE inclusions is ~2-5 at% La, 15-20 % Ce, 5-10% Pr, 25-45% Nd, 1% Np, 5-10% Pu, and 10-20% Am. Some areas also have O, although this does not appear to be an essential part of the high-Am RE phase. The inclusions have a face-centered cubic structure with a lattice parameter a ~ 0.54 nm. The composition of the only low-Am RE inclusion studied in detail is ~~35-40 at% O, 40-45 % Nd, 1-2% Zr, 4-5% La, 9-10% Ce, and 6-7% Pr. This inclusion is an oxide with a crystal structure similar to the room-temperature structure of Nd2O3. Microstructural features suggest that oxidation occurred during casting, and that early crystallization of high-temperature oxides led to formation of two distinct RE phases.

  11. A flowsheet concept for an Am/Ln separation based on Am{sup VI} solvent extraction

    SciTech Connect

    Mincher, B.J.; Law, J.D.

    2013-07-01

    The separation of Am from the lanthanides and curium is a key step in proposed advanced fuel cycle scenarios. The partitioning and transmutation of Am is desirable to minimize the long-term radiotoxicity of material interred in a future high-level waste repository. However, a separation amenable to process scale-up remains elusive. Higher oxidation states of americium have recently been used to demonstrate solvent extraction-based separations using conventional fuel cycle ligands. Here, the successful partitioning of Am{sup VI} from the bulk of lanthanides and curium using diamyl-amyl-phosphonate (DAAP) extraction is reported. Due to the instability of Am{sup VI} in the organic phase it was readily selectively stripped to a new acidic aqueous phase to provide separation from co-extracted Ce{sup IV}. The use of NaBiO{sub 3} as an oxidant to separate Am from the lanthanides and Cm by solvent extraction has been successfully demonstrated on the bench scale. Based on these results, flowsheet concepts can be designed that result in 96 % Am recovery in the presence of a few percent of the remaining Cm and the lanthanides in two extraction contacts. Preliminary results also indicate that the DAAP extractant is robust toward γ- irradiation under realistic conditions of acidity and dissolved oxygen concentration.

  12. Conventional and Explosive Pulsed Power Development at Texas A&m University

    NASA Astrophysics Data System (ADS)

    Freeman, B.; Faleski, T.; Hamilton, I.; Rock, J.; Parish, T.

    2004-11-01

    A new capability for performing conventional and explosive pulsed power programs is being developed at Texas A&M University (TAMU), through the Texas Engineering Experiment Station of the TAMU System. The primary machine being installed in this facility is a low inductance, ~460 kJ, 60 kV capacitor bank. Flexibility to support different loads is being designed into this system, as is the ability to disconnect experiments from the laboratory machine for testing at the explosive pulsed power test site. Initial experiments will be conducted using a plasma focus as the load, with this low inductance, high-current capacitor bank as a driver. We expect to realize peak currents of 3 to 4 MA in the plasma focus. Potential applications include pulsed neutron source studies, intense X-ray production development for possible commercial applications, and high-energy-density plasma science investigations. Other potential loads for this capacitor bank include magnetohydrodynamic plasma accelerators and systems that may be of interest to magnetized fusion energy experiments. The proposed site for the explosive pulsed power facility on the TAMU Riverside Campus has been experimentally qualified. We anticipate that with a fully developed facility that incorporates blast, shrapnel, and acoustic mitigation measures, experiments containing 22.7 kg of explosive will be reasonable. Presently, parts are available to assemble a power source for potential explosive generator development and application shots.

  13. Development of Tritium AMS for Biomedical Sciences Research

    SciTech Connect

    Dingley, K H; Chiarappa-Zucca, M L

    2002-01-01

    Tritium ({sup 3}H) is a radioisotope that is extensively utilized in biological research. Normally in the biological sciences, {sup 3}H is quantified by liquid scintillation counting. For the most sensitive measurements, liquid scintillation counting requires large samples and counting times of several-hours. In contrast, provisional studies at LLNL's Center for Accelerator Mass Spectrometry have demonstrated that Accelerator Mass Spectrometry (AMS) can be-used to quantify {sup 3}H in milligram-sized biological samples with a 100 1000-fold improvement in detection limits when compared to scintillation counting. This increased sensitivity is expected to have great impact in the biological research community. However, before {sup 3}H AMS can be used routinely and successfully, two areas of concern needed to be addressed: (1) sample preparation methods needed to be refined and standardized, and (2) smaller and simpler AMS instrumentation needed to be developed. To address these concerns, the specific aims of this project were to: (1) characterize small dedicated {sup 3}H AMS spectrometer (2) develop routine and robust biological sample preparation methods, and (3) with the aid of our external collaborations, demonstrate the application of {sup 3}H AMS in the biomedical sciences. Towards these goals, the {sup 3}H AMS instrument was installed and optimized to enhance performance. The sample preparation methodology was established for standard materials (water and tributyrin) and biological samples. A number of biological and environmental studies which require {sup 3}H AMS were undertaken with university collaborators and our optimized analysis methods were employed to measure samples from these projects.

  14. Search for New Physics with AMS-02 Transition Radiation Detector

    NASA Astrophysics Data System (ADS)

    Chung, Chanhoon

    Today the universe consists of 4.6% of ordinary matter, 23.3% of dark matter and 72.1% of dark energy. The dark matter is generally assumed be stable, non-relativistic and only weakly interacting. But we do not know what the dark matter is made of and how it is distributed within our Galaxy. In general, the cosmic antiparticles are expected as secondary products of interactions of the primary cosmic-rays (CRs) with the interstellar medium during propagation. While the measurements of CR positrons have become more precise, the results still do not match with the pure secondary origins. AMS-02 is a large acceptance precision particle spectrometer approved for installation on the International Space Station (ISS). A key feature of AMS-02 is precise particle identification for measurements of primary cosmic ray anti-particle spectra with negligible background up to a momentum of 500 GeV/c to allow indirect searches for dark matter. To efficiently separate positrons/electrons from protons/anti-protons, AMS-02 will be equipped with a Transition Radiation Detector (TRD) with 5248 straw tube proportional counters filled with a Xe/CO2 (80/20) mixture. The AMS-02 TRD was fully assembled and integrated into AMS-02 in 2007. In 2008 AMS-02 had recorded cosmic ray particles on ground to demonstrate full functionality of the device. For the AMS-02 TRD it will be shown that the detector response is as expected and the gas tightness will allow operation in space for 20 years with a gas supply of 25 kg.

  15. A simulation study of linear RF ion guides for AMS

    NASA Astrophysics Data System (ADS)

    Zhao, X.-L.; Litherland, A. E.

    2015-02-01

    The use of radiofrequency multipoles and particularly the radiofrequency quadrupole (RFQ) controlled gas cell to facilitate on-line isobar separations for Accelerator Mass Spectrometry (AMS) is being explored experimentally and theoretically in a preliminary way at present. These new methods have the potential to extend greatly the analytical scope of AMS. However, there are many technical challenges to adapt an RF gas cell isobar separating device and still maintain stable and high transmission for routine AMS using the high current Cs+ sputter ion sources developed for nuclear physics and adapted to the detection of rare radioactive isotopes for AMS. An overview of linear RF ion guide properties is therefore needed to assist in the conceptualization of their efficient additions into AMS. In this work the intrinsic properties of linear RF ion guides, which are relevant to the generation of the RF induced ion energy distributions and for the evaluation of the ion transmissions in vacuum, are systematically studied using SIMION 8.1. These properties are compared among radiofrequency quadrupole, hexapole and octupole ion guides, so that their usefulness for AMS applications can be evaluated and compared. By simulation it is found that to prepare a typical RF captured AMS ion beam to within a safe range of ion energies prior to the onset of gas interactions, a higher multipole is more suitable for the first RF field receptor, while a quadrupole operated with q2 ∼ 0.5 is more suited as the final ion guide for concentrating the energy-cooled ions near axis.

  16. Research and test facilities

    NASA Technical Reports Server (NTRS)

    1993-01-01

    A description is given of each of the following Langley research and test facilities: 0.3-Meter Transonic Cryogenic Tunnel, 7-by 10-Foot High Speed Tunnel, 8-Foot Transonic Pressure Tunnel, 13-Inch Magnetic Suspension & Balance System, 14-by 22-Foot Subsonic Tunnel, 16-Foot Transonic Tunnel, 16-by 24-Inch Water Tunnel, 20-Foot Vertical Spin Tunnel, 30-by 60-Foot Wind Tunnel, Advanced Civil Transport Simulator (ACTS), Advanced Technology Research Laboratory, Aerospace Controls Research Laboratory (ACRL), Aerothermal Loads Complex, Aircraft Landing Dynamics Facility (ALDF), Avionics Integration Research Laboratory, Basic Aerodynamics Research Tunnel (BART), Compact Range Test Facility, Differential Maneuvering Simulator (DMS), Enhanced/Synthetic Vision & Spatial Displays Laboratory, Experimental Test Range (ETR) Flight Research Facility, General Aviation Simulator (GAS), High Intensity Radiated Fields Facility, Human Engineering Methods Laboratory, Hypersonic Facilities Complex, Impact Dynamics Research Facility, Jet Noise Laboratory & Anechoic Jet Facility, Light Alloy Laboratory, Low Frequency Antenna Test Facility, Low Turbulence Pressure Tunnel, Mechanics of Metals Laboratory, National Transonic Facility (NTF), NDE Research Laboratory, Polymers & Composites Laboratory, Pyrotechnic Test Facility, Quiet Flow Facility, Robotics Facilities, Scientific Visualization System, Scramjet Test Complex, Space Materials Research Laboratory, Space Simulation & Environmental Test Complex, Structural Dynamics Research Laboratory, Structural Dynamics Test Beds, Structures & Materials Research Laboratory, Supersonic Low Disturbance Pilot Tunnel, Thermal Acoustic Fatigue Apparatus (TAFA), Transonic Dynamics Tunnel (TDT), Transport Systems Research Vehicle, Unitary Plan Wind Tunnel, and the Visual Motion Simulator (VMS).

  17. AMS undergoes a final weight and balance check in the SSPF

    NASA Technical Reports Server (NTRS)

    1998-01-01

    Under the supervision of Boeing technicians, the Alpha Magnetic Spectrometer (AMS), a payload slated to fly on STS-91, is undergoing a final weight and balance check on the Launch Package Integration Stand in the Space Station Processing Facility (SSPF). Next, it will be placed in the Payload Canister and transported to Launch Complex 39A where it will be installed into Space Shuttle Discovery's payload bay. Weighing in at approximately three tons, the AMS is a major particle physics experiment that will look for cosmic antimatter originating from outside our galaxy. The data it gathers could also give clues about the mysterious 'dark matter' that may make up 90 percent or more of the universe. STS-91 is scheduled to be launched on June 2 with a launch window opening around 6:10 p.m. EDT. The mission will also feature the ninth Shuttle docking with the Russian Space Station Mir, the first Mir docking for Discovery, and the conclusion of Phase I of the joint U.S.-Russian International Space Station Program. The STS-91 flight crew includes Commander Charles Precourt; Pilot Dominic Gorie; and Mission Specialists Wendy B. Lawrence; Franklin Chang-Diaz, Ph.D.; Janet Kavandi, Ph.D.; and Valery Ryumin, with the Russian Space Agency. Andrew Thomas, Ph.D., will be returning to Earth with the crew after living more than four months aboard Mir.

  18. Production of Extremely Neutron-Rich Rare Isotopes at Texas A&M

    NASA Astrophysics Data System (ADS)

    Souliotis, G. A.; Veselsky, M.; Yennello, S. J.

    2002-03-01

    The production of extermely neutron-rich isotopes in heavy-ion collisions around and below the Fermi energy ( 30 MeV/ncleon) has been investigated using the MARS recoil separator at the Cyclotron Institute of Texas A&M University. At present, the reactions: 25 MeV/nucleon ^86Kr + ^64Ni and 21 MeV/nucleon ^124Sn+^124Sn have been investigated. The experimental results on cross sections obtained to date will be presented and compared with reaction simulations appropriate for this energy domain. The current calculations involve a deep inelastic transfer code for the primary interaction stage and a modern statistical evaporation code for the deexcitation stage. The results are also compared with higher energy projectile fragmentation data and available parametrizations. In general, we show that such reactions, near or below the Fermi energy, involving substantial nucleon exchange between the projectile and the target, can be a fruitful pathway to approach extremely neutron-rich nuclei towards the neutron drip-line. Apart from in-flight possibilities, the option of utilizing this type of reaction for rare isotope production in ISOL-based facilities will be mentioned. Finally, application of such reactions in current plans of both in-flight and ISOL-type rare beam production at Texas A&M will be discussed.

  19. HAWAII NPDES MAJOR FACILITIES

    EPA Science Inventory

    Point coverage representing locations of NPDES facilities. NPDES (National Pollution Discharge Elimination System) is an EPA permit program that regulates direct discharges from wastewater treatment facilities that discharge into waters of the US. Wastewater treatment facilitie...

  20. SAMOA NPDES MAJOR FACILITIES

    EPA Science Inventory

    Point coverage representing locations of NPDES facilities. NPDES (National Pollution Discharge Elimination System) is an EPA permit program that regulates direct discharges from wastewater treatment facilities that discharge into waters of the US. Wastewater treatment facilitie...

  1. GUAM NPDES MAJOR FACILITIES

    EPA Science Inventory

    Point coverage representing locations of NPDES facilities. NPDES (National Pollution Discharge Elimination System) is an EPA permit program that regulates direct discharges from wastewater treatment facilities that discharge into waters of the US. Wastewater treatment facilitie...

  2. ARIZONA NPDES MAJOR FACILITIES

    EPA Science Inventory

    Point coverage representing locations of NPDES facilities. NPDES (National Pollution Discharge Elimination System) is an EPA permit program that regulates direct discharges from wastewater treatment facilities that discharge into waters of the US. Wastewater treatment facilitie...

  3. NEVADA NPDES MAJOR FACILITIES

    EPA Science Inventory

    Point coverage representing locations of NPDES facilities. NPDES (National Pollution Discharge Elimination System) is an EPA permit program that regulates direct discharges from wastewater treatment facilities that discharge into waters of the US. Wastewater treatment facilitie...

  4. CALIFORNIA NPDES MAJOR FACILITIES

    EPA Science Inventory

    Point coverage representing locations of NPDES facilities. NPDES (National Pollution Discharge Elimination System) is an EPA permit program that regulates direct discharges from wastewater treatment facilities that discharge into waters of the US. Wastewater treatment facilitie...

  5. Facility safety study

    NASA Technical Reports Server (NTRS)

    1979-01-01

    The safety of NASA's in house microelectronics facility is addressed. Industrial health standards, facility emission control requirements, operation and safety checklists, and the disposal of epitaxial vent gas are considered.

  6. Facilities for US Radioastronomy.

    ERIC Educational Resources Information Center

    Thaddeus, Patrick

    1982-01-01

    Discusses major developments in radioastronomy since 1945. Topics include proposed facilities, very-long-baseline interferometric array, millimeter-wave telescope, submillimeter-wave telescope, and funding for radioastronomy facilities and projects. (JN)

  7. The Educational Facilities Charrette

    ERIC Educational Resources Information Center

    Chase, William W.

    1970-01-01

    The deputy director for the Division of Facilities Development of the U.S. Office of Education discusses a technique for studying and resolving educational facilities development problems within the context of total community planning needs." (Author/AA)

  8. Development of forging and heat treating practices for AMS 5737 for use at liquid helium temperatures

    SciTech Connect

    Dalder, E.N.C.; Greenlee, M.

    1981-08-10

    To achieve a combination of high yield-strength (sigma y), plane-strain fracture-toughness (K/sub IC/) and resistance to galling when turned against austenitic stainless steels in highly-loaded threaded turnbuckles in the M.F.T.F.-B (Mirror Fusion Test Facility), AMS 5737 (Fe-15Cr-25Ni-1Mo-V-Ti-Al-B), a heat-treatable Fe-base superalloy that is slightly-ferromagnetic under high magnetic fields at 4K, was chosen for large (approx. 340 kg) forged turn buckles. This report describes the forging and heat-treatment optimization program that resulted in good sigma y and K/sub IC/ over the 4 to 300K range of service-temperatures and the verification tests run on a pre-production forging and actual production parts.

  9. Spectroscopic Measurement of L X-Rays Emitted by 241Am Source by TES Microcalorimeter

    NASA Astrophysics Data System (ADS)

    Maeda, M.; Yamaguchi, K.; Maehata, K.; Iyomoto, N.; Ishibashi, K.; Takasaki, K.; Nakamura, K.; Tanaka, K.; Yamanaka, Y.

    2012-06-01

    Nondestructive plutonium monitoring during reprocessing of spent nuclear fuel and in mixed-oxide-fuel fabrication facilities is expected to require spectroscopic measurements of L X-rays ranging from 10 to 20 keV. To this end, L X-ray emission intensities of transuranium elements will be important parameters in estimating the plutonium isotopic composition from L X-ray spectra. However, owing to fine structure within the L X-ray spectra, significant discrepancies exist among theoretical values, reference and experimental data concerning these emission intensities. To obtain better spectroscopic measurements, we used a TES microcalorimeter to get the energy spectrum of L X-rays emitted by 237Np resulting from α-decay of a 241Am source. Values for the L X-ray emission intensities were estimated by analyzing the spectral data and compared with previous data. We advocate for improvements in evaluation of emission intensities given the enhanced precision afforded by TES microcalorimetry.

  10. CIM5 bubbler: Effect of sparge rate and duration on homogeneity to Am/Cm glass

    SciTech Connect

    Stone, M. E.

    2000-01-20

    The current flowsheet for the Am/Cm program requires that the glass pool be sparged with argon during the soaking period immediately prior to draining the melter. The effect of varying sparge rate and duration on the homogeneity of the final glass product was evaluated using the full scale 5-inch Cylindrical Induction Melter (CIM5) pilot facility. The tests showed that the homogeneity of the glass product is maintained provided the sparge rate is at least 1.5 scfh and the sparge duration is at least 45 minutes or the flowrate is at least 1.0 scfh and the sparge duration is 60 minutes. SRTC recommends that the melt pool be sparged for 75 minutes with an argon flowrate of 1.5 scfh and a sparge dip tube located 1-inch from the melter bottom. In addition, pour flowrate was found to be a reliable indication of glass homogeneity.

  11. Facilities maintenance handbook

    NASA Technical Reports Server (NTRS)

    1991-01-01

    This handbook is a guide for facilities maintenance managers. Its objective is to set minimum facilities maintenance standards. It also provides recommendations on how to meet the standards to ensure that NASA maintains its facilities in a manner that protects and preserves its investment in the facilities in a cost-effective manner while safely and efficiently performing its mission. This handbook implements NMI 8831.1, which states NASA facilities maintenance policy and assigns organizational responsibilities for the management of facilities maintenance activities on all properties under NASA jurisdiction. It is a reference for facilities maintenance managers, not a step-by-step procedural manual. Because of the differences in NASA Field Installation organizations, this handbook does not assume or recommend a typical facilities maintenance organization. Instead, it uses a systems approach to describe the functions that should be included in any facilities maintenance management system, regardless of its organizational structure. For documents referenced in the handbook, the most recent version of the documents is applicable. This handbook is divided into three parts: Part 1 specifies common definitions and facilities maintenance requirements and amplifies the policy requirements contained in NMI 8831. 1; Part 2 provides guidance on how to meet the requirements of Part 1, containing recommendations only; Part 3 contains general facilities maintenance information. One objective of this handbook is to fix commonality of facilities maintenance definitions among the Centers. This will permit the application of uniform measures of facilities conditions, of the relationship between current replacement value and maintenance resources required, and of the backlog of deferred facilities maintenance. The utilization of facilities maintenance system functions will allow the Centers to quantitatively define maintenance objectives in common terms, prepare work plans, and

  12. 241Am INGROWTH AND ITS EFFECT ON INTERNAL DOSE.

    PubMed

    Konzen, Kevin

    2016-07-01

    Generally, plutonium has been manufactured to support commercial and military applications involving heat sources, weapons, and reactor fuel. This work focuses on three typical plutonium mixtures while observing the potential of Am ingrowth and its effect on internal dose. The term "ingrowth" is used to describe Am production due solely to the decay of Pu as part of a plutonium mixture, where it is initially absent or present in a smaller quantity. Dose calculation models do not account for Am ingrowth unless the Pu quantity is specified. This work suggested that Am ingrowth be considered in bioassay analysis when there is a potential of a 10% increase to the individual's committed effective dose. It was determined that plutonium fuel mixtures, initially absent of Am, would likely exceed 10% for typical reactor grade fuel aged less than 30 y; however, heat source grade and aged weapons grade fuel would normally fall below this threshold. Although this work addresses typical plutonium mixtures following separation, it may be extended to irradiated commercial uranium fuel and is expected to be a concern in the recycling of spent fuel. PMID:27218291

  13. Space Flight Qualification Program for the AMS-2 Commercial Cryocoolers

    NASA Technical Reports Server (NTRS)

    Shirey, K. A.; Banks, I. S.; Breon, S. R.; Boyle, R. F.; Krebs, Carolyn A. (Technical Monitor)

    2002-01-01

    The Alpha Magnetic Spectrometer-02 (AMS-02) experiment is a state-of-the-art particle physics detector containing a large superfluid helium-cooled superconducting magnet. Highly sensitive detector plates inside the magnet measure a particle's speed, momentum, charge, and path. The AMS-02 experiment will study the properties and origin of cosmic particles and nuclei including antimatter and dark matter. AMS-02 will be installed on the International Space Station on Utilization Flight-4. The experiment will be run for at least three years. To extend the life of the stored cryogen and minimize temperature gradients around the magnet, four Stirling-cycle Sunpower M87N cryocoolers will be integrated with AMS-02. The cryocooler cold tip will be connected via a flexible strap to the outer vapor cooled shield of the dewar. Initial thermal analysis shows the lifetime of the experiment is increased by a factor of 2.8 with the use of the cryocooler. The AMS-02 project selected the Sunpower M87 cryocoolers and has asked NASA Goddard to qualify the cryocoolers for space flight use. This paper describes the interfaces with the cryocoolers and presents data collected during testing of the two engineering model cryocoolers. Tests include thermal performance characterization and launch vibration testing. Magnetic field compatibility testing will be presented in a separate paper at the conference.

  14. 47 CFR 73.61 - AM directional antenna field strength measurements.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 47 Telecommunication 4 2012-10-01 2012-10-01 false AM directional antenna field strength... RADIO SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.61 AM directional antenna field strength measurements. (a) Each AM station using a directional antenna with monitoring point...

  15. 47 CFR 73.61 - AM directional antenna field strength measurements.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 47 Telecommunication 4 2011-10-01 2011-10-01 false AM directional antenna field strength... RADIO SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.61 AM directional antenna field strength measurements. (a) Each AM station using a directional antenna with monitoring point...

  16. 47 CFR 73.61 - AM directional antenna field strength measurements.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 47 Telecommunication 4 2014-10-01 2014-10-01 false AM directional antenna field strength... RADIO SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.61 AM directional antenna field strength measurements. (a) Each AM station using a directional antenna with monitoring point...

  17. 47 CFR 73.61 - AM directional antenna field strength measurements.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 47 Telecommunication 4 2010-10-01 2010-10-01 false AM directional antenna field strength... RADIO SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.61 AM directional antenna field strength measurements. (a) Each AM station using a directional antenna with monitoring point...

  18. 47 CFR 73.61 - AM directional antenna field strength measurements.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 47 Telecommunication 4 2013-10-01 2013-10-01 false AM directional antenna field strength... RADIO SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.61 AM directional antenna field strength measurements. (a) Each AM station using a directional antenna with monitoring point...

  19. Facilities Engineering in NASA

    NASA Technical Reports Server (NTRS)

    Pagluiso, M. A.

    1970-01-01

    An overview of NASA facilities is given outlining some of the more interesting and unique aspects of engineering and facilities associated with the space program. Outlined are some of the policies under which the Office of Facilities conducts its business. Included are environmental quality control measures.

  20. Aeronautical facilities assessment

    NASA Technical Reports Server (NTRS)

    Penaranda, F. E. (Compiler)

    1985-01-01

    A survey of the free world's aeronautical facilities was undertaken and an evaluation made on where the relative strengths and weaknesses exist. Special emphasis is given to NASA's own capabilities and needs. The types of facilities surveyed are: Wind Tunnels; Airbreathing Propulsion Facilities; and Flight Simulators

  1. Florida Educational Facilities, 1998.

    ERIC Educational Resources Information Center

    Florida State Dept. of Education, Tallahassee. Office of Educational Facilities.

    This document contains information, photographs, and floor plans of many of Florida's new elementary through high school facilities occupied in 1998. Each entry lists the facility's type, building size, student capacity, and general structural information. Also provided is information on the facility's total construction cost; the architects and…

  2. Florida Educational Facilities, 1996.

    ERIC Educational Resources Information Center

    Florida State Dept. of Education, Tallahassee. Office of Educational Facilities.

    This document contains information, photographs, and floor plans of many of Florida's new elementary through high school facilities occupied in 1996. Each entry lists the facility's type, building size, student capacity, and general structural information. Also provided is information on the facility's total construction cost; the architects and…

  3. Florida Educational Facilities, 1997.

    ERIC Educational Resources Information Center

    Florida State Dept. of Education, Tallahassee. Office of Educational Facilities.

    This document contains information, photographs, and floor plans of many of Florida's new elementary through high school facilities occupied in 1997. Each entry lists the facility's type, building size, student capacity, and general structural information. Also provided is information on the facility's total construction cost; the architects and…

  4. Rental of School Facilities.

    ERIC Educational Resources Information Center

    San Antonio Independent School District, TX.

    Regulations governing rental of facilities owned by the San Antonio School District (Texas) are documented as found in Section Eight of the school district's rules code ("Public Use of All School District Facilities"). Eight divisions of the code are as follows: (1) administration; (2) use of school facilities by pupils, employees, and…

  5. Automation in a material processing/storage facility

    SciTech Connect

    Peterson, K.; Gordon, J.

    1997-05-01

    The Savannah River Site (SRS) is currently developing a new facility, the Actinide Packaging and Storage Facility (APSF), to process and store legacy materials from the United States nuclear stockpile. A variety of materials, with a variety of properties, packaging and handling/storage requirements, will be processed and stored at the facility. Since these materials are hazardous and radioactive, automation will be used to minimize worker exposure. Other benefits derived from automation of the facility include increased throughput capacity and enhanced security. The diversity of materials and packaging geometries to be handled poses challenges to the automation of facility processes. In addition, the nature of the materials to be processed underscores the need for safety, reliability and serviceability. The application of automation in this facility must, therefore, be accomplished in a rational and disciplined manner to satisfy the strict operational requirements of the facility. Among the functions to be automated are the transport of containers between process and storage areas via an Automatic Guided Vehicle (AGV), and various processes in the Shipping Package Unpackaging (SPU) area, the Accountability Measurements (AM) area, the Special Isotope Storage (SIS) vault and the Special Nuclear Materials (SNM) vault. Other areas of the facility are also being automated, but are outside the scope of this paper.

  6. Method comparison for 241Am emergency urine bioassay.

    PubMed

    Li, Chunsheng; Sadi, Baki; Benkhedda, Karima; St-Amant, Nadereh; Moodie, Gerry; Ko, Raymond; Dinardo, Anthony; Kramer, Gary

    2010-10-01

    241Am is one of the high-risk radionuclides that might be used in a terrorist attack. 241Am in urine bioassay can identify the contaminated individuals who need immediate medical intervention and decontamination. This paper compares three methods for the measurement of 241Am in urine, namely liquid scintillation counting (LSC), inductively coupled plasma mass spectrometry (ICP-MS) and gamma spectrometry (GS), at two levels, 20 and 2 Bq l(-1). All three methods satisfied the ANSI N13.30 radio-bioassay criteria for accuracy and repeatability. ICP-MS offered the best sensitivity and fastest sample turnaround; however, the ICP-MS system used in this work may not be available in many bioassay laboratories. LSC and GS are more commonly available instruments. GS requires minimal or no sample preparation, which makes it a good candidate method. Moreover, the sample throughput can be significantly improved if the GS and LSC methods are automated. PMID:20573683

  7. The AMS-02 lead-scintillating fibres Electromagnetic Calorimeter

    NASA Astrophysics Data System (ADS)

    Adloff, C.; Basara, L.; Bigongiari, G.; Bosi, F.; Brun, P.; Cadoux, F.; Cervelli, F.; Chambert, V.; Chen, G.; Chen, G. M.; Chen, H. S.; Coignet, G.; Cougoulat, G.; Di Falco, S.; Dubois, J. M.; Elles, S.; Falchini, E.; Fiasson, A.; Fougeron, D.; Fouque, N.; Galeotti, S.; Gallucci, G.; Gherarducci, F.; Girard, L.; Giuseppe, F.; Goy, C.; Hermel, R.; Incagli, M.; Jacquemier, J.; Journet, L.; Kossakowski, R.; Lepareur, V.; Li, Z. H.; Lieunard, B.; Lomtadze, T.; Lu, Y. S.; Maestro, P.; Magazzù, C.; Maire, M.; Orsini, A.; Paniccia, M.; Pedreschi, E.; Peltier, F.; Piendibene, M.; Pilo, F.; Pochon, J.; Rambure, T.; Rosier-Lees, S.; Spinella, F.; Tang, X. W.; Tassan-Viol, J.; Tazzioli, A.; Vannini, C.; Vialle, J. P.; Zhuang, H. L.

    2013-06-01

    The Electromagnetic Calorimeter (ECAL) of the AMS-02 experiment is a fine grained lead-scintillating fibres sampling calorimeter that allows for a precise three-dimensional imaging of the longitudinal and lateral shower development. It provides a high (≥106) electron/hadron discrimination with the other AMS-02 detectors [1] and good energy resolution. The calorimeter also provides a standalone photon trigger capability to AMS-02. The mechanical assembly was realized to ensure minimum weight, still supporting the intrinsically heavy calorimeter during launch. ECAL light collection system and electronics are designed to measure electromagnetic particles over a wide energy range, from GeV up to TeV. A full-scale flight-like model was tested using electrons and proton beams with energies ranging from 6 to 250 GeV.

  8. Quantifying exploratory low dose compounds in humans with AMS

    PubMed Central

    Dueker, Stephen R.; Vuong, Le T.; Lohstroh, Peter N.; Giacomo, Jason A.; Vogel, John S.

    2010-01-01

    Accelerator Mass Spectrometry is an established technology whose essentiality extends beyond simply a better detector for radiolabeled molecules. Attomole sensitivity reduces radioisotope exposures in clinical subjects to the point that no population need be excluded from clinical study. Insights in human physiochemistry are enabled by the quantitative recovery of simplified AMS processes that provide biological concentrations of all labeled metabolites and total compound related material at non-saturating levels. In this paper, we review some of the exploratory applications of AMS 14C in toxicological, nutritional, and pharmacological research. This body of research addresses the human physiochemistry of important compounds in their own right, but also serves as examples of the analytical methods and clinical practices that are available for studying low dose physiochemistry of candidate therapeutic compounds, helping to broaden the knowledge base of AMS application in pharmaceutical research. PMID:21047543

  9. Joint infrared and visual monitoring of AM Herculis

    NASA Technical Reports Server (NTRS)

    Priedhorsky, W.; Matthews, K.; Neugebauer, G.; Werner, M.; Krzeminski, W.

    1978-01-01

    Four cycles of the flux from the 3.1 hour X-ray variable AM Her have been observed simultaneously at four wavelengths in the visible and near-infrared. The data show periodic variations at all wavelengths but show systematic changes with wavelength in the relative depths and widths of the primary and secondary minima. The spectral energy distribution varies with phase, being reddest at primary minimum and bluest at the maximum. At primary minimum it is consistent with the energy distribution of an M2 V star plus a component which is flat with frequency; if an M2 V star is present, a lower limit of 100 pc can be placed on the distance to AM Her. The implications of the data on several models for AM Her are discussed.

  10. Pinpointing cosmic ray propagation with the AMS-02 experiment

    SciTech Connect

    Pato, Miguel; Hooper, Dan; Simet, Melanie E-mail: dhooper@fnal.gov

    2010-06-01

    The Alpha Magnetic Spectrometer (AMS-02), which is scheduled to be deployed onboard the International Space Station later this year, will be capable of measuring the composition and spectra of GeV-TeV cosmic rays with unprecedented precision. In this paper, we study how the projected measurements from AMS-02 of stable secondary-to-primary and unstable ratios (such as boron-to-carbon and beryllium-10-to-beryllium-9) can constrain the models used to describe the propagation of cosmic rays throughout the Milky Way. We find that within the context of fairly simple propagation models, all of the model parameters can be determined with high precision from the projected AMS-02 data. Such measurements are less constraining in more complex scenarios, however, which allow for departures from a power-law form for the diffusion coefficient, for example, or for inhomogeneity or stochasticity in the distribution and chemical abundances of cosmic ray sources.

  11. Estimating Am-241 activity in the body: comparison of direct measurements and radiochemical analyses

    SciTech Connect

    Lynch, Timothy P.; Tolmachev, Sergei Y.; James, Anthony C.

    2009-06-01

    The assessment of dose and ultimately the health risk from intakes of radioactive materials begins with estimating the amount actually taken into the body. An accurate estimate provides the basis to best assess the distribution in the body, the resulting dose, and ultimately the health risk. This study continues the time-honored practice of evaluating the accuracy of results obtained using in vivo measurement methods and techniques. Results from the radiochemical analyses of the 241Am activity content of tissues and organs from four donors to the United States Transuranium and Uranium Registries were compared to the results from direct measurements of radioactive material in the body performed in vivo and post mortem. Two were whole body donations and two were partial body donations The skeleton was the organ with the highest deposition of 241Am activity in all four cases. The activities ranged from 30 Bq to 300 Bq. The skeletal estimates obtained from measurements over the forehead were within 20% of the radiochemistry results in three cases and differed by 78% in one case. The 241Am lung activity estimates ranged from 1 Bq to 30 Bq in the four cases. The results from the direct measurements were within 40% of the radiochemistry results in 3 cases and within a factor of 3 for the other case. The direct measurement estimates of liver activity ranged from 2 Bq to 60 Bq and were generally lower than the radiochemistry results. The results from this study suggest that the measurement methods and calibration techniques used at the In Vivo Radiobioassay and Research Facility to quantify the activity in the lungs, skeleton and liver are reasonable under the most challenging conditions where there is 241Am activity in multiple organs. These methods and techniques are comparable to those used at other Department of Energy sites. This suggests that the current in vivo methods and calibration techniques provide reasonable estimates of radioactive material in the body. Not

  12. Small scale shear zone in calcite: AMS and microstructure

    NASA Astrophysics Data System (ADS)

    Roxerová, Zuzana; Machek, Matěj; Kusbach, Vladimír; Racek, Martin; Silva, Pedro F.

    2016-04-01

    Two structural profiles across thin shear zone in calcite from quarry in Estremoz (Portugal) were studied to find a relationship between AMS and strain in natural rocks. The mesoscopic fabric is characterized by the change from the subhorizontal coarse-grained foliation towards the ~2cm-wide shear zone center with subvertical fine-grained foliation. In microstructure, the shear zone records dynamic recrystallization of calcite aggregate which resulted in development of porphyroclastic microstructure with increasing proportion of fine-grained recrystallized matrix towards the shear zone center. Two distinct crystallographic preferred orientations of calcite were recorded. One related with porphyroclasts, characterized by subvertical orientation of calcite axes and another associated with recrystallized matrix showing subhorizontal calcite axes orientation. The magnetic susceptibility ranges from -8e-6SI to 9e-6SI, with the average -4e-6SI. The majority of the rock mass is diamagnetic, corresponding well with the thermomagnetic curves, with local paramagnetic accumulations in form of thin bands. The AMS of the both profiles exhibits stable subvertical foliation bearing vertical lineation which is locally alternated by the medium-angle foliation. We interpret the AMS fabric pattern which is perpendicular to the mineral one as a type of inverse AMS fabric, due to high iron content in major part of calcite grains The magnetic and microstructural description of the shear zone is accompanied by numerical modeling of AMS based on CPO and different proportion of porphyroclasts, matrix and mica for purposes of deciphering the influence of present microstructural features on AMS.

  13. AMS Climate Studies: Improving climate literacy through undergraduate education

    NASA Astrophysics Data System (ADS)

    Brey, J. A.; Geer, I. W.; Moran, J. M.; Weinbeck, R. S.; Mills, E. W.; Blair, B. A.; Hopkins, E. J.; Kiley, T. P., Jr.; Ruwe, E. E.

    2009-12-01

    In working to promote scientific literacy among the public, the American Meteorological Society (AMS) has produced a suite of introductory college-level courses that engage students by investigating relevant topics in Earth science, and utilizing the most current, real-world environmental data. The newest of these courses, AMS Climate Studies, is a turnkey package which will be licensed by individual colleges for local offering in online, blended, or traditional lecture/lab settings. The course will place students in a dynamic learning environment where they will investigate Earth’s climate system using real-world data. This will allow the course to keep a strong focus on the science, while still addressing many of the societal impacts that draw the attention of today’s students. In this way, the course will serve as a great primer in preparing students to become responsible, scientifically-literate participants in discussions of climate science and climate change. Developed with major support from NASA, AMS Climate Studies will encourage students to investigate the atmosphere and world ocean as components of a larger Earth system. More than 500 colleges and universities throughout the United States have already offered AMS Weather Studies and AMS Ocean Studies, after which AMS Climate Studies will be modeled. The learning system will consist of a fully-integrated set of printed and online learning materials focused around a brand new, hardcover 15-chapter textbook, Climate Studies: Introduction to Climate Science and an Investigations Manual with 30 lab-style activities that will emphasize the use of authentic science data. The package will also include a course website providing weekly Current Climate Studies activities along with access to environmental data streams, including an impressive suite of NASA and NOAA images and products. The development and testing of AMS Climate Studies is currently nearing completion. A number of college and university

  14. The Basis for Developing Samarium AMS for Fuel Cycle Analysis

    SciTech Connect

    Buchholz, B A; Biegalski, S R; Whitney, S M; Tumey, S J; Weaver, C J

    2008-10-13

    Modeling of nuclear reactor fuel burnup indicates that the production of samarium isotopes can vary significantly with reactor type and fuel cycle. The isotopic concentrations of {sup 146}Sm, {sup 149}Sm, and {sup 151}Sm are potential signatures of fuel reprocessing, if analytical techniques can overcome the inherent challenges of lanthanide chemistry, isobaric interferences, and mass/charge interferences. We review the current limitations in measurement of the target samarium isotopes and describe potential approaches for developing Sm-AMS. AMS sample form and preparation chemistry will be discussed as well as possible spectrometer operating conditions.

  15. New Light Curves and Orbital Solution for AM Leonis

    NASA Astrophysics Data System (ADS)

    Hiller, Mary E.; Osborn, Wayne; Terrell, Dirk

    2004-04-01

    New UBVRI photometry has been obtained for the W UMa eclipsing system AM Leonis. The data have been used to derive nine times of minimum and to construct light curves. The minimum timings show that the system recently had a significant period increase. Modeling of the light curves shows AM Leo to be an overcontact system with a mass ratio of 2.51. Both Rucinski & Duerbeck's absolute magnitude calibration for W UMa stars applied to our photometry and the radial velocity curve combined with our derived parameters indicate a distance near 125 pc, larger than the 77 pc from the Hipparcos parallax.

  16. The potential of He stripping in heavy ion AMS

    NASA Astrophysics Data System (ADS)

    Vockenhuber, C.; Alfimov, V.; Christl, M.; Lachner, J.; Schulze-König, T.; Suter, M.; Synal, H.-A.

    2013-01-01

    The use of helium as a stripper gas for Accelerator Mass Spectrometry (AMS) measurements of heavy ions is presented. At ion stripping energies of about 500 keV and below we observe a significant increase of the mean charge state when using helium instead of other gases. Moreover, scattering losses are reduced with helium because of its lower mass compared to other commonly used stripper gases. Thus, highly efficient AMS measurements for 41Ca, 129I and 236U with transmissions through the accelerator in the range of 40-50% are now possible.

  17. Measurement of 239Pu in urine samples at ultra-trace levels using a 1 MV compact AMS system

    NASA Astrophysics Data System (ADS)

    Hernández-Mendoza, H.; Chamizo, E.; Yllera, A.; García-León, M.; Delgado, A.

    2010-04-01

    Routine bioassay monitoring of Pu intake in exposed workers of research and nuclear industry is usually performed by alpha spectrometry. This technique involves large sample volumes of urine and time-consuming preparative and counting protocols. Compact accelerator mass spectrometry (AMS) facilities make feasible the determination of ultra low-level Pu activity concentrations and Pu isotopic ratios in biological samples (blood, urine and feces), being a rapid and cost-effective measurement technique. The plutonium results in urine samples presented here have been obtained on the 1 MV compact AMS system sited at the Centro Nacional de Aceleradores (CNA), in Seville, Spain. In this work, a different methodological approach has been developed alternative to the "classical" preparation of urine samples for alpha spectrometry. The procedure avoids the Pu precipitation step, and involves acid sample evaporation and acid digestion in a microwave oven. Finally, purification of plutonium was achieved by using chromatography columns filled up with BioRad AG1X2 anion exchange resin (Bio-Rad Laboratories Inc.). The total time needed for analysis is about 10 h, unlike the "classical" methods based on alpha spectrometry which need about 1 week. At present, it has been demonstrated that this method allows quantifying 239Pu activity concentrations in urine of, at least, 30 μBq (13 fg 239Pu). We can conclude that the procedure would be suitable to perform in vitro routine bioassay measurements. Moreover, the innovative application of AMS opens new and interesting analytical alternatives in this field.

  18. Applications of AMS {sup 14}C on Climate and Archaeology

    SciTech Connect

    Gomes, P. R. S.

    2007-10-26

    We describe the Accelerator Mass Spectrometry (AMS) technique and two distinct applications of its use with {sup 14}C to study environmental problems in Brazil, such as forest fires and climate changes in the Amazon region and archaeological studies on the early settlements in the Southeast Brazilian coast.

  19. Why Am I Learning Evolution? Pointers towards Enacted Scientific Literacy

    ERIC Educational Resources Information Center

    Olander, Clas

    2013-01-01

    This paper explores affordances in teaching evolution, especially those in which evolution is made relevant to and argued for in a grade 9 biology classroom, thus giving potential answers to the pupils' legitimate question,"'why am I learning evolution?" The aim of the paper is methodological in the sense that it explores…

  20. 50 CFR 648.163 - Bluefish Accountability Measures (AMs).

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 50 Wildlife and Fisheries 12 2012-10-01 2012-10-01 false Bluefish Accountability Measures (AMs). 648.163 Section 648.163 Wildlife and Fisheries FISHERY CONSERVATION AND MANAGEMENT, NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE FISHERIES OF THE NORTHEASTERN UNITED STATES Management Measures for the Atlantic...

  1. Producing In-House Indexes at Texas A&M.

    ERIC Educational Resources Information Center

    Kinyon, William R.; And Others

    1990-01-01

    Describes three in-house indexes produced at the Texas A&M University Library to facilitate access to energy-related materials, curriculum guides and other educational materials, and reference materials. Production, as well as time and cost factors, are discussed. Recommendations for producing in-house indexes are offered. (10 references) (MES)

  2. Calculation of the compounded uncertainty of 14C AMS measurements

    NASA Astrophysics Data System (ADS)

    Nadeau, Marie-Josée; Grootes, Pieter M.

    2013-01-01

    The correct method to calculate conventional 14C ages from the carbon isotopic ratios was summarised 35 years ago by Stuiver and Polach (1977) and is now accepted as the only method to calculate 14C ages. There is, however, no consensus regarding the treatment of AMS data, mainly of the uncertainty of the final result. The estimation and treatment of machine background, process blank, and/or in situ contamination is not uniform between laboratories, leading to differences in 14C results, mainly for older ages. As Donahue (1987) and Currie (1994), among others, mentioned, some laboratories find it important to use the scatter of several measurements as uncertainty while others prefer to use Poisson statistics. The contribution of the scatter of the standards, machine background, process blank, and in situ contamination to the uncertainty of the final 14C result is also treated in different ways. In the early years of AMS, several laboratories found it important to describe their calculation process in details. In recent years, this practise has declined. We present an overview of the calculation process for 14C AMS measurements looking at calculation practises published from the beginning of AMS until present.

  3. International coordination of A+M data efforts

    NASA Astrophysics Data System (ADS)

    Janev, Ratko; Becker, Kurt; Clark, Robert; Lister, Graeme; Niemax, Kay

    1998-07-01

    A summary of the discussions at the ICAMDATA panel on international coordination of atomic and molecular (A+M) data efforts is presented. The status of databases and the needs for coordination of data generation, compilation and assessment efforts in the areas of spectrochemistry, low-temperature plasma applications, plasma processing of materials, lighting industry and fusion energy research are specifically addressed.

  4. Long-term photometric behaviour of outbursting AM CVn systems

    NASA Astrophysics Data System (ADS)

    Levitan, David; Groot, Paul J.; Prince, Thomas A.; Kulkarni, Shrinivas R.; Laher, Russ; Ofek, Eran O.; Sesar, Branimir; Surace, Jason

    2015-01-01

    The AM CVn systems are a class of He-rich, post-period minimum, semidetached, ultracompact binaries. Their long-term light curves have been poorly understood due to the few systems known and the long (hundreds of days) recurrence times between outbursts. We present combined photometric light curves from the Lincoln Near Earth Asteroid Research, Catalina Real-Time Transient Survey, and Palomar Transient Factory synoptic surveys to study the photometric variability of these systems over an almost 10 yr period. These light curves provide a much clearer picture of the outburst phenomena that these systems undergo. We characterize the photometric behaviour of most known outbursting AM CVn systems and establish a relation between their outburst properties and the systems' orbital periods. We also explore why some systems have only shown a single outburst so far and expand the previously accepted phenomenological states of AM CVn systems. We conclude that the outbursts of these systems show evolution with respect to the orbital period, which can likely be attributed to the decreasing mass transfer rate with increasing period. Finally, we consider the number of AM CVn systems that should be present in modelled synoptic surveys.

  5. 50 CFR 648.233 - Spiny dogfish Accountability Measures (AMs).

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 50 Wildlife and Fisheries 10 2011-10-01 2011-10-01 false Spiny dogfish Accountability Measures... Management Measures for the Spiny Dogfish Fishery § 648.233 Spiny dogfish Accountability Measures (AMs). (a... dogfish on that date for the remainder of that semi-annual period by publishing notification in...

  6. 50 CFR 648.233 - Spiny dogfish Accountability Measures (AMs).

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 50 Wildlife and Fisheries 12 2014-10-01 2014-10-01 false Spiny dogfish Accountability Measures... Management Measures for the Spiny Dogfish Fishery § 648.233 Spiny dogfish Accountability Measures (AMs). (a... quota described in § 648.232 will be harvested and shall close the EEZ to fishing for spiny dogfish...

  7. 50 CFR 648.233 - Spiny dogfish Accountability Measures (AMs).

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 50 Wildlife and Fisheries 12 2013-10-01 2013-10-01 false Spiny dogfish Accountability Measures... Management Measures for the Spiny Dogfish Fishery § 648.233 Spiny dogfish Accountability Measures (AMs). (a... dogfish on that date for the remainder of that semi-annual period by publishing notification in...

  8. Interpretation of AMS-02 electrons and positrons data

    SciTech Connect

    Mauro, M. Di; Donato, F.; Fornengo, N.; Vittino, A.; Lineros, R. E-mail: donato@to.infn.it E-mail: rlineros@ific.uv.es

    2014-04-01

    We perform a combined analysis of the recent AMS-02 data on electrons, positrons, electrons plus positrons and positron fraction, in a self-consistent framework where we realize a theoretical modeling of all the astrophysical components that can contribute to the observed fluxes in the whole energy range. The primary electron contribution is modeled through the sum of an average flux from distant sources and the fluxes from the local supernova remnants in the Green catalog. The secondary electron and positron fluxes originate from interactions on the interstellar medium of primary cosmic rays, for which we derive a novel determination by using AMS-02 proton and helium data. Primary positrons and electrons from pulsar wind nebulae in the ATNF catalog are included and studied in terms of their most significant (while loosely known) properties and under different assumptions (average contribution from the whole catalog, single dominant pulsar, a few dominant pulsars). We obtain a remarkable agreement between our various modeling and the AMS-02 data for all types of analysis, demonstrating that the whole AMS-02 leptonic data admit a self-consistent interpretation in terms of astrophysical contributions.

  9. Accurate and fast DFT calculations with the AM05 functional

    NASA Astrophysics Data System (ADS)

    Mattsson, Ann E.

    2008-03-01

    The AM05 functional [1] has the same excellent performance for solids as the hybrid density functionals tested in Paier et. al. (J. Chem. Phys 124, 154709 (2006); ibid 125, 249901 (2006)). This confirms the original finding that AM05 performs exceptionally well for solids and surfaces. While hybrid functionals are computationally expensive, preveting them from being used in large systems and/or long molecular dynamics simulations, the AM05 functional is on a regular semi-local GGA form with corresponding computational cost. The performance of AM05 is even superior to an `informed choice' between LDA and PBE. By comparing data from different electronic-structure codes we have determined that the numerical errors in this study are equal to or smaller than corresponding experimental uncertainties. Results for other systems will also be presented. Sandia is a multiprogram laboratory operated by Sandia Corporation, a Lockheed Martin Company, for the United States Department of Energy's National Nuclear Security Administration under contract DE-AC04-94AL85000. [1] R. Armiento and A. E. Mattsson, Phys. Rev. B 72, 085108 (2005).

  10. Tagging fast neutrons from an (241)Am/(9)Be source.

    PubMed

    Scherzinger, J; Annand, J R M; Davatz, G; Fissum, K G; Gendotti, U; Hall-Wilton, R; Håkansson, E; Jebali, R; Kanaki, K; Lundin, M; Nilsson, B; Rosborge, A; Svensson, H

    2015-04-01

    Shielding, coincidence, and time-of-flight measurement techniques are employed to tag fast neutrons emitted from an (241)Am/(9)Be source resulting in a continuous polychromatic energy-tagged beam of neutrons with energies up to 7MeV. The measured energy structure of the beam agrees qualitatively with both previous measurements and theoretical calculations. PMID:25644080

  11. Location of vehicles using AM station broadcasting signals

    NASA Technical Reports Server (NTRS)

    Hansen, G. R., Jr.

    1975-01-01

    Imaginary hyperbolic grid patterns formed by three local AM broadcasting stations were utilized in study. Each hyperbola is defined by constant phase difference between arbitrary signals integrally related to those coming from two stations. When three stations are used, grid is formed covering area with intersecting hyperbolas.

  12. Identification of genes controlling development of arbuscules in AM symbiosis

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Most vascular flowering plants have the capacity to form mutualistic symbioses with arbuscular mycorrhizal (AM) fungi. These associations develop in the roots where the fungus delivers phosphate to the root cortical cells and receives carbon from its plant host. During the symbiosis, the fungus prol...

  13. 50 CFR 648.201 - AMs and harvest controls.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... Atlantic Herring Fishery § 648.201 AMs and harvest controls. (a) AMs—(1) Herring sub-ACLs and ACL—(i..., possessing, catching, transferring, or landing more than 2,000 lb (907.2 kg) of Atlantic herring per trip in the applicable area, and from landing herring more than once per calendar day, except as provided...

  14. 50 CFR 648.201 - AMs and harvest controls.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... Atlantic Herring Fishery § 648.201 AMs and harvest controls. (a) AMs—(1) Herring sub-ACLs and ACL—(i..., possessing, catching, transferring, or landing more than 2,000 lb (907.2 kg) of Atlantic herring per trip in the applicable area, and from landing herring more than once per calendar day, except as provided...

  15. Electronic and magnetic properties of Am and Cm

    SciTech Connect

    Edelstein, N.

    1985-02-01

    A review of the present status of the analyses of the optical spectra of Am and Cm in various oxidation states is given. From these analyses, the magnetic properties of the ground states of these ions can be determined. These predicted values are compared with the various magnetic measurements available.

  16. Facility records change control

    SciTech Connect

    Freed, B.L.

    1985-01-01

    This paper describes a control system that provides instructions and defines responsibilities for the systematic review, impact assessment, approval, release, and dissemination of facility record changes resulting from both major and minor modifications. This change control system was specifically developed and implemented on the Loss of Fluid Test (LOFT) integral test facility at the Idaho National Engineering Laboratory (INEL). The same type of control system is now used by all EG and G Idaho, Inc. reactor facilities at the INEL.

  17. A Microwave Driven Ion Source for Continuous-Flow AMS (Abstract)

    SciTech Connect

    Wills, J.; Schneider, R.J.; Reden, K.F. von; Hayes, J.M.; Roberts, M.L.; Benthien, A.

    2005-03-15

    A microwave-driven, gas-fed ion source originally developed as a high-current positive ion injector for a Tandem accelerator at Chalk River has been the subject of a three-year development program at the Woods Hole Oceanographic Institution NOSAMS facility. Off-line tests have demonstrated positive carbon currents of 1 mA and negative carbon currents of 80 {mu}A from CO2 gas feed. This source and a magnesium charge-exchange canal were coupled to the recombinator of the NOSAMS Tandetron for on-line tests, with the source fed with reference gasses and a combustion device.The promising results obtained have prompted the redesign of the microwave source for use as an on-line, continuous-flow injector for a new AMS facility under construction at NOSAMS. The new design is optimized for best transmission of the extracted positive-ion beam through the charge-exchange canal and for reliable operation at 40 kV extraction voltage. Other goals of the re-design include improved lifetime of the microwave window and the elimination of dead volumes in the plasma generator that increase sample hold-up time.This talk will include a summary of results obtained to date at NOSAMS with the Chalk River source and a detailed description of the new design.

  18. MIST facility densitometer comparisons

    SciTech Connect

    Childerson, M.T.

    1987-01-01

    Photon attenuation techniques were used in the Multi-Loop Integral Systems Test (MIST) facility to make void fraction and fluid density measurements. The MIST facility was a scaled physical model of a Babcock and Wilcox lowered loop, nuclear steam supply system. The facility was tested at typical pressurized water reactor fluid conditions. The MIST facility was designed for observing integral system response during a small-break loss-of-coolant accident. The data from the MIST tests are used for improving confidence in safety codes. Dual-beam gamma densitometers provided an indication of the void fraction or mixture density of the fluid at the hot- and cold-leg nozzles.

  19. On-farm AM fungus inoculum production: a complete how-to on-farm am fungus inoculum production

    Technology Transfer Automated Retrieval System (TEKTRAN)

    Arbuscular mycorrhizal (AM) fungi are beneficial soil fungi that form a symbiosis with the majority of crop plants. The benefits to the plant include increased nutrient uptake and disease and drought resistance. This makes utilization of the symbiosis a potentially important part in ensuring the s...

  20. Am stars and the influence of binarity on infall

    NASA Astrophysics Data System (ADS)

    Cowley, Charles R.

    2016-01-01

    We explore an old idea for the origin of Am star anomalies, possibly related to observations of pollution in white dwarfs (Jura & Young, ARAA, 42, 45, 2014; Gansicke, et al., Arxiv:1505.03142). It must be noted that infall of an earthlike body can explain some, but not all of the abundance anomalies of Am stars.The ingestion of earthlike material by an a star should have observable effects that are larger than for solar-type stars. We follow dynamical arguments discussed, e.g. by Debes, et al. ApJ., 747, 148, 2012), and postulate that gravitational interactions will produce an infalling stream of low angularmomentum bodies.Note that most if not all Am stars are binary. Here we investigate only whether there is an increased frequency of collisions with a close binary relative to a single star.We make quantitative estimates, using analytical 2-body solutions and restricted 3-body calculations with parameters similar to those of the eclipsing Am pair Beta Aur,or WW Aur. We use initial values for the binary similar to those which would lead to a certain collision on a (4M_sun) single star for a parabolic trajectory. All calculations begin with a distance from the center of mass along the axis of a paraboloid of revolution at 3 or 5 AU and such that a marginal collision occurs with a single star. The perpendicular area of this figure is a cross section for a collision. We sample trajectories starting within and near this cross section, for double starsystems. Based on many trials we find it about equally likely-- relative to a single star--that an incoming body will be ejected from the system than that it will collide with one of the stars. Although we have sampled only a fraction of possible parameter space, we find no basis to expect that the binarity of the Am systems makes them more likely to have ingested planetary material.Infall should probably still be considered, along with the generally accepted diffusion scenario, but it does not appear that the binarity of

  1. Shaping Campus Facilities.

    ERIC Educational Resources Information Center

    Calcara, James R.

    1999-01-01

    Explains how colleges and universities, faced with emerging trends and increased competition, can utilize their facilities as strategic resources. Examines technology changes in the classroom and the effects on user needs, the trend toward real-world learning environments, and facility design planning that responds to social interaction and…

  2. Head Start Facilities Manual.

    ERIC Educational Resources Information Center

    Research Assessment Management, Inc., Silver Spring, MD.

    A quality Head Start facility should provide a physical environment responsive both to the needs of the children and families served and to the needs of staff, volunteers, and community agencies that share space with Head Start. This manual is a tool for Head Start grantees and delegate agencies for assessing existing facilities, making…

  3. School Facilities. Appendix A.

    ERIC Educational Resources Information Center

    Howell, Penny; Miller, Barbara; Krantzler, Nora

    1997-01-01

    This appendix to the theme issue summarizes the challenges of providing and maintaining educational facilities, discussing the maintenance of existing buildings and the need for new ones. Possible sources of needed funds are considered, and the equity problems related to school facilities are reviewed, emphasizing the problems of urban schools.…

  4. BIBLIOGRAPHY OF FACILITIES INFORMATION.

    ERIC Educational Resources Information Center

    American Association of Junior Colleges, Washington, DC.

    PERSONNEL OF THE FACILITIES INFORMATION SERVICE OF THE AMERICAN ASSOCIATION OF JUNIOR COLLEGES COMPILED THIS LISTING OF BOOKS, ARTICLES, MONOGRAPHS, AND OTHER PRINTED MATERIALS RELEVANT TO JUNIOR COLLEGE FACILITIES PLANNING, DESIGN, AND CONSTRUCTION. IN ADDITION TO A "GENERAL" CATEGORY, REFERENCES ARE GROUPED UNDER HEADINGS OF AUDITORIUMS, COLLEGE…

  5. Electrostatic Levitator (ESL) Facility

    NASA Technical Reports Server (NTRS)

    1998-01-01

    The Electrostatic Levitator (ESL) Facility established at Marshall Space Flight Center (MSFC) supports NASA's Microgravity Materials Science Research Program. NASA materials science investigations include ground-based, flight definition and flight projects. Flight definition projects, with demanding science concept review schedules, receive highest priority for scheduling experiment time in the Electrostatic Levitator (ESL) Facility.

  6. Florida Educational Facilities, 1999.

    ERIC Educational Resources Information Center

    Florida State Dept. of Education, Tallahassee. Office of Educational Facilities.

    This publication describes Florida school and community college facilities completed in 1999, including photographs and floor plans. The facilities profiled are: Buchholz High School (Alachua County); Gator Run Elementary School (Broward); Corkscrew Elementary School (Collier); The 500 Role Models Academy of Excellence (Miami-Dade); Caribbean…

  7. INCINERATION RESEARCH FACILITY

    EPA Science Inventory

    The Cincinnati-based Risk Reduction Engineering Laboratory, ORD, U.S. EPA operates the Incineration Research Facility *IRF) in Jefferson, Arkansas. This facility's pilot-scale experimental incineration systems include a Rotary Kiln System and a Liquid Injection System. Each syste...

  8. FACILITY POLLUTION PREVENTION GUIDE

    EPA Science Inventory

    The U.S. Environmental Protection Agency (U.S. EPA) has developed the Facility Pollution Prevention Guide for those who are interested in and responsible for pollution prevention in industrial or service facilities. t summarizes the benefits of a company-wide pollution prevention...

  9. FACILITIES FOR PHYSICAL FITNESS.

    ERIC Educational Resources Information Center

    MUSIAL, STAN

    THIS ARTICLE CITES THE LOW PRIORITY THAT PHYSICAL EDUCATION GENERALLY HAS IN CURRICULUM AND SCHOOL FACILITY PLANNING. IT ALSO CITES THE REASONS FOR DEVELOPING MORE ADEQUATE PHYSICAL EDUCATION FACILITIES--(1) OUR WAY OF LIFE NO LONGER PROVIDES VIGOROUS PHYSICAL ACTIVITY NECESSARY FOR HEALTHY DEVELOPMENT, (2) A DIRECT RELATIONSHIP EXISTS BETWEEN…

  10. Science Facilities Bibliography.

    ERIC Educational Resources Information Center

    National Science Foundation, Washington, DC.

    A bibliographic collection on science buildings and facilities is cited with many different reference sources for those concerned with the design, planning, and layout of science facilities. References are given covering a broad scope of information on--(1) physical plant planning, (2) management and safety, (3) building type studies, (4) design…

  11. THE INCINERATION RESEARCH FACILITY

    EPA Science Inventory

    The Cincinnati-based Risk Reduction Engineering Laboratory, Office of Research and Development, U.S. EPA operates the Incineration Research Facility (IRF) in Jefferson, Arkansas. his facility's pilot-scale experimental incineration systems include a Rotary Kiln System and a Liqui...

  12. Florida Educational Facilities, 2000.

    ERIC Educational Resources Information Center

    Florida State Dept. of Education, Tallahassee. Office of Educational Facilities.

    This publication describes Florida school and community college facilities completed in 2000, including photographs and floor plans. The facilities profiled are:J. R. Arnold High School (Bay County); Falcon Cove Middle School (Broward); Floranada Elementary School (Broward); Lyons Creek Middle School (Broward); Parkside Elementary School…

  13. Kauai Test Facility

    SciTech Connect

    Hay, R.G.

    1982-01-01

    The Kauai Test Facility (KTF) is a Department of Energy rocket launch facility operated by Sandia National Laboratories. Originally it was constructed in support of the high altitude atmospheric nuclear test phase of operation Dominic in the early 1960's. Later, the facility went through extensive improvement and modernization to become an integral part of the Safeguard C readiness to resume nuclear testing program. Since its inception and build up, in the decade of the sixties and the subsequent upgrades of the seventies, range test activities have shifted from full scale test to emphasis on research and development of materials and components, and to making high altitude scientific measurements. Primarily, the facility is intended to be utilized in support of development programs at the DOE weapons laboratories, however, other organizations may make use of the facility on a non-interface basis. The physical components at KTF and their operation are described.

  14. Reinvesting in Geosciences at Texas A&M University in the 21st Century

    NASA Astrophysics Data System (ADS)

    Cifuentes, L. A.; Bednarz, S. W.; Miller, K. C.

    2009-12-01

    The College of Geosciences at Texas A&M University is implementing a three-prong strategy to build a strong college: 1) reinvesting in signature areas, 2) emphasizing environmental programs, and 3) nurturing a strong multi-disciplinary approach to course, program and research development. The college is home to one of the most comprehensive concentrations of geosciences students (837), faculty (107) and research scientists (32) in the country. Its departments include Atmospheric Sciences, Geography, Geology & Geophysics, and Oceanography. The college is also home to three major research centers: the Integrated Ocean Drilling Program, the Geochemical and Environmental Research Group, and the Texas Sea Grant College Program. During the 1990’s the college experienced a 20 percent loss in faculty when allocation of university funds was based primarily on student credit hour production while research expenditures were deemphasized. As part of Texas A&M University President Robert Gates’ Faculty Reinvestment and the college’s Ocean Drilling and Sustainable Earth Sciences hiring programs, 31 faculty members were hired in the college from 2004 through 2009, representing a significant investment-2.2 million in salaries and 4.6 million in start-up. Concurrent improvements to infrastructure and services important to signature programs included $3.0 million for radiogenic isotope and core imaging facilities and the hiring of a new Director of Student Recruitment. In contrast to faculty hiring in previous decades, the expectation of involvement in multi-disciplinary teaching, learning and research was emphasized during this hiring initiative. Returns on investments to date consist of growth in our environmental programs including new multidisciplinary course offerings, generation of a new research center and significant increases in student enrollment, research expenditures, and output of research and scholarly works. Challenges ahead include providing adequate staff

  15. Coupled AGC-Costas loops with AM/PM conversion

    NASA Astrophysics Data System (ADS)

    Gagliardi, R. M.

    1980-01-01

    Costas loops are invariably designed in conjunction with an automatic gain control (AGC) loop for stabilizing performance. In such systems an inherent coupling between the AGC and Costas loops develops, complicating the standard phase referencing analysis. This coupling is further emphasized if the gain control amplifier introduces an AM/PM conversion, which causes power variations to enter the Costas loop as phase variations. In this paper the coupling effect between AGC and Costas loops is developed, leading to a pair of joint, interconnected dynamical tracking loops. Some degree of solution is attainable by assuming a first order AGC loop, and resorting to quasi-stationary analysis for evaluating the phase referencing generation. Results with and without AM/PM are presented, and illustrate how an improper AGC may in fact degrade the phase referencing from the expected performance.

  16. Development of AMS procedure for measurement of 93Zr

    NASA Astrophysics Data System (ADS)

    Lu, Wenting; Collon, Philippe; Kashiv, Yoav; Bowers, Matthew; Robertson, Daniel; Schmitt, Christopher

    2011-10-01

    The procedure for measuring 93Zr (t1/2 = 1.5 Ma) by AMS is currently being developed at the Nuclear Science Lab at the University of Notre Dame and we report on first experiments performed in this direction. AMS detection of 93Zr can potentially be applied to address astrophysical and environmental issues: (1) the measurement of the 92Zr(n,γ)93Zr reaction cross-section at nucleosynthesis s-process relevant temperatures, (2) the search for potential live 93Zr from a supernova in deep sea sediments, (3) hydrological and radioactive waste tracing. The measurement of 93Zr requires adequate separation from its stable isobar 93Nb. We are currently working on optimizing this separation by using the GasFilled Magnet technique with additional multiple dE measurements in a focal plane ionization chamber.

  17. OSO-8 X-ray observations of AM Herculis

    NASA Technical Reports Server (NTRS)

    Swank, J. H.; Lampton, M.; Boldt, E.; Holt, S. S.; Serlemitsos, P. J.

    1977-01-01

    Hard X-ray observations of the binary system AM Her were coincident with soft X-ray and ground-based optical measurements. In the 2-60 KeV band, variability was detected with an eclipse during phases 0.5 to 0.7 with respect to the 0. d 12892 period optical minima, synchronous with the known soft X-ray eclipse. The 2-60 KeV uneclipsed flux was 9.5 x 10 to the minus 10th power erg sq cm/sec, of which 86% lies above 10 keV. Thus AM Her contains a hard source located near the similarly eclipsed soft X-ray source. The X-ray data are interpreted in terms of thermal bremsstrahlung from accretion onto a white dwarf.

  18. The PACA Project : Pro-Am Collaborative Astronomy

    NASA Astrophysics Data System (ADS)

    Yanamandra-Fisher, P. A.

    2014-04-01

    The Pro-Am Collaborative Astronomy (PACA) project is the next stage of evolution of the paradigm developed for the observational campaign of C/2012 S1 or C/ISON. Four different phases of collaboration are identified, and illustrate the integration of scientific investigations with amateur astronomer community via observations, and models; and the rapid dissemination of the results via a multitude of social media for rapid global access. The success of the paradigm shift in scientific research is now implemented in other comet observing campaigns. Both communities (scientific and amateur astronomers) benefit from these collective, collaborative partnerships; while outreach is the instantaneous deliverable that provides both a framework for future data analyses and the dissemination of the results. While PACA identifies a collaborative approach to pro-am collaborations, given the volume of data generated for each campaign, new ways of rapid data analysis, mining access and storage are needed.

  19. Correlated photometric and polarimetric phenomena in AM Herculis

    NASA Technical Reports Server (NTRS)

    Priedhorsky, W. C.; Krzeminski, W.; Tapia, S.

    1978-01-01

    Via simultaneous multicolor photometry and polarimetry of AM Herculis, we find correlations among polarization, flux, and color in the V and I bands in periodic and nonperiodic (i.e., flickering) activity. The primary minimum observed in both bands is accompanied by a blueward shift of the (B - R) color and a decrease in the absolute value of the percent circular polarization in the V band. Outside primary minimum, peaks of flickering activity tend to be associated with an increase in the absolute value of the circular polarization and the concurrent reddening of the (B - R) and (R - I) colors. The visual light curve of AM Her can be explained by a flickering, circularly polarized light source which is obscured at primary minimum, and is redder than the total system color in the URVRI bands.

  20. The Earth Observing System AM Spacecraft - Thermal Control Subsystem

    NASA Technical Reports Server (NTRS)

    Chalmers, D.; Fredley, J.; Scott, C.

    1993-01-01

    Mission requirements for the EOS-AM Spacecraft intended to monitor global changes of the entire earth system are considered. The spacecraft is based on an instrument set containing the Advanced Spaceborne Thermal Emission and Reflection radiometer (ASTER), Clouds and Earth's Radiant Energy System (CERES), Multiangle Imaging Spectro-Radiometer (MISR), Moderate-Resolution Imaging Spectrometer (MODIS), and Measurements of Pollution in the Troposphere (MOPITT). Emphasis is placed on the design, analysis, development, and verification plans for the unique EOS-AM Thermal Control Subsystem (TCS) aimed at providing the required environments for all the onboard equipment in a densely packed layout. The TCS design maximizes the use of proven thermal design techniques and materials, in conjunction with a capillary pumped two-phase heat transport system for instrument thermal control.

  1. Reprocessing of 10B-contaminated 10Be AMS targets

    NASA Astrophysics Data System (ADS)

    Simon, K. J.; Pedro, J. B.; Smith, A. M.; Child, D. P.; Fink, D.

    2013-01-01

    10Be accelerator mass spectrometry (AMS) is an increasingly important tool in studies ranging from exposure age dating and palaeo-geomagnetism to the impact of solar variability on the Earth’s climate. High levels of boron in BeO AMS targets can adversely impact the quality of 10Be measurements through interference from the isobar 10B. Numerous methods in chemical sample preparation and AMS measurement have been employed in order to reduce the impact of excessive boron rates. We present details of a method developed to chemically reprocess a set of forty boron-contaminated BeO targets derived from modern Antarctic ice. Previously, the excessive boron levels in these samples, as measured in an argon-filled absorber cell preceding the ionisation detector, had precluded routine AMS measurement. The procedure involved removing the BeO + Nb mixture from the target holders and dissolving the BeO in hot concentrated H2SO4. The solution was then heated with HF to remove the boron as volatile BF3 before re-precipitating as Be(OH)2 and calcining to BeO. This was again mixed with niobium and pressed into fresh target holders. Following reprocessing, the samples gave boron rates reduced by 10-100×, which were sufficiently low and similar to previous successful batches of ice core, snow and associated blank samples, thus allowing a successful 10Be measurement in the absence of any boron correction. Overall recovery of the BeO for this process averaged 40%. Extensive testing of relevant processing equipment and reagents failed to determine the source of the boron. As a precautionary measure, a similar H2SO4 + HF step has been subsequently added to the standard ice processing method.

  2. Complete Genome Assembly of Staphylococcus epidermidis AmMS 205.

    PubMed

    Davenport, K W; Daligault, H E; Minogue, T D; Bishop-Lilly, K A; Broomall, S M; Bruce, D C; Chain, P S; Coyne, S R; Frey, K G; Gibbons, H S; Jaissle, J; Redden, C L; Rosenzweig, C N; Scholz, M B; Teshima, H; Johnson, S L

    2014-01-01

    Staphylococcus epidermidis causes a large number of catheter-related sepsis infections annually in the United States. We present the 2.54-Mbp complete genome assembly of reference strain S. epidermidis AmMS 205, including a single 37.7-kbp plasmid. The annotated assembly is available in GenBank under accession numbers CP009046 and CP009047. PMID:25377697

  3. Complete Genome Assembly of Staphylococcus epidermidis AmMS 205

    PubMed Central

    Davenport, K. W.; Daligault, H. E.; Minogue, T. D.; Bishop-Lilly, K. A.; Broomall, S. M.; Bruce, D. C.; Chain, P. S.; Coyne, S. R.; Frey, K. G.; Gibbons, H. S.; Jaissle, J.; Redden, C. L.; Rosenzweig, C. N.; Scholz, M. B.; Teshima, H.

    2014-01-01

    Staphylococcus epidermidis causes a large number of catheter-related sepsis infections annually in the United States. We present the 2.54-Mbp complete genome assembly of reference strain S. epidermidis AmMS 205, including a single 37.7-kbp plasmid. The annotated assembly is available in GenBank under accession numbers CP009046 and CP009047. PMID:25377697

  4. Accretion Studies in AM Herculis Stars - The RAP Version

    NASA Astrophysics Data System (ADS)

    Howell, Steven B.

    We propose to obtain RAP observations of AM Her stars in order to study the accretion process as a function of time (both orbit-to-orbit and longer timescale), system inclination, binary orbital period, component masses, and magnetic field strength. Some of the systems we propose to observe have already been observed with EUVE, so we have a time base started in the archives. Others are new and will provide critical information about accretion processes for different system parameters.

  5. Positron fraction, electron and positron spectra measured by AMS-02

    NASA Astrophysics Data System (ADS)

    Pizzolotto, Cecilia

    2016-07-01

    A precise measurement by AMS-02 of the electron spectrum up to 700 GeV and of the positron spectrum and positron fraction in primary cosmic rays up 500 GeV are presented. The combined measurement of the cosmic-ray electron and positron energy spectra and fraction provide a unique tool to improve our understanding of the production, acceleration and propagation mechanism of cosmic rays.

  6. Power distribution for an Am/Cm bushing melter

    SciTech Connect

    Gong, C.; Hardy, B.J.

    1996-12-31

    Decades of nuclear material production at the Savannah River Site (SRS) has resulted in the generation of large quantities of the isotopes Am{sup 243} and Cm{sup 244}. Currently, the Am and Cm isotopes are stored as a nitric acid solution in a tank. The Am and Cm isotopes have great commercial value but must be transferred to ORNL for processing. The nitric acid solution contains other isotopes and is intensely radioactive, which makes storage a problem and precludes shipment in the liquid form. In order to stabilize the material for onsite storage and to permit transport the material from SRS to ORNL, it has been proposed that the Am and Cm be separated from other isotopes in the solution and vitrified. Vitrification will be effected by depositing a liquid feed stream containing the isotopes in solution, together with a stream of glass frit, onto the top of a molten glass pool in a melter. The glass is non-conducting and the melter is a Platinum/Rhodium alloy vessel which is heated by passing an electric current through it. Because most of the power is required to evaporate the liquid feed at the top of the glass pool, power demands differ for the upper and lower parts of the melter. In addition, the melter is batch fed so that the local power requirements vary with time. In order to design a unique split power supply, which ensures adequate local power delivery, an analysis of the melter power distribution was performed with the ABAQUS finite element code. ABAQUS was used to calculate the electric potential and current density distributions in the melter for a variety of current and potential boundary conditions. The results of the calculation were compared with test data and will be used to compute power densities for input to a computational fluid dynamics model for the melter.

  7. EOS-AM1 Nickel Hydrogen Cell Interim Life Test Report

    NASA Technical Reports Server (NTRS)

    Bennett, C. W.; Keys, D. J.; Rao, G. M.; Wannemacher, H. E.; Vaidyanathan, H.

    1997-01-01

    This paper reports the interim results of the Earth Observing System AM-1 project (EOS-AM-1) nickel hydrogen cell life test being conducted under contract to National Aeronautics and Space Administration (NASA) Goddard Space Flight Center (GSFC) at the Lockheed Martin Missiles and Space (LMMS) facility in East Windsor, NJ; and at COMSAT Labs., Clarksburg, MD. The purpose of the tests is to verify that the EOS-AM-l cell design can meet five years of real-time Low Earth Orbit (LEO) cycling. The tests include both real-time LEO and accelerated stress tests. At LMMS, the first real-time LEO simulated 99 minute orbital cycle started on February 7, 1994 and the test has been running continuously since that time, with 13000 LEO cycles completed as of September 2, 1996. Each cycle consists of a 64 minute charge (VT at 1.507 volts per cell, 1.06 C/D ratio, followed by 0.6 ampere trickle charge) and a 35 minute constant power discharge at 177 watts (22.5% DOD). At COMSAT, the accelerated stress test consists of 90 minute orbital cycles at 60% DOD with a 30 minute discharge at 60 amperes and a 60 minute charge at 40 ampercs (VT at 1.54 volts per cell to 1.09 C/D ratio, followed by 0.6 ampere trickle charge). The real-time LEO life test battery consists of seven, 50AH (nameplate rating) Eagle-Picher, Inc. (EPI) Mantech cells manufactured into three, 3-cell pack assemblies (there are two place holder cells that are not part of the life test electrical circuit). The test pack is configured to simulate the conductive thermal design of the spacecraft battely, including: conductive aluminum sleeves, 3-cell pack aluminum baseplate, and honeycomb panel all mounted to a liquid (-5 C) cold plate. The entire assembly is located in a thermal chamber operating at +3 C. The accelerated stress test unit consists of five cells mounted in machined aluminum test sleeves and is operating at +10 C. The real-time LEO life test battery has met all performance requirements through the first 13

  8. EOS--AM1 Nickel Hydrogen Cell Interim Life Test Report

    NASA Technical Reports Server (NTRS)

    Bennett, C. W.; Keys, D. J.; Rao, G. M.; Wannemacher, H. E.; Vaidyanathan H.

    1999-01-01

    This paper reports the interim results of the Earth Observing System AM-1 project (EOS-AM-1) nickel hydrogen cell life test being conducted under contract to National Aeronautics and Space Administration (NASA) Goddard Space Flight Center (GSFC) at the Lockheed Martin Missiles and Space (LMMS) facility in East Windsor, NJ; and at COMSAT Labs., Clarksburg, MD. The purpose of the tests is to verify that the EOS-AM-1 cell design can meet five years of real-time Low Earth Orbit (LEO) cycling. The tests include both real-time LEO and accelerated stress tests. At LMMS, the first real-time LEO simulated 99 minute orbital cycle started on February 7, 1994 and the test has been running continuously since that time, with 18202 LEO cycles completed as of September 1, 1997. Each cycle consists of a 64 minute charge (VT at 1.507 volts per cell. 1.06 C/D ratio, followed by 0.6 ampere trickle charge) and a 35 minute constant power discharge at 177 watts (22.5% DOD). At COMSAT, the accelerated stress test consists of 90 minute orbital cycles at 60% DOD with a 30 minute discharge at 60 amperes and a 60 minute charge at 40 amperes (VT at 1.54 volts per cell to 1.09 C/D ratio, followed by 0.6 ampere trickle charge). The real-time LEO life test battery consists of seven, 50AH (nameplate rating) Eagle-Picher, Inc. (EPI) Mantech cells manufactured into three. 3-cell pack assemblies (there are two place holder cells that are not part of the life test electrical circuit). The test pack is configured to simulate the conductive thermal design of the spacecraft battery, including: conductive aluminum sleeves, 3-cell pack aluminum baseplate, and honeycomb panel all mounted to a liquid (-5 C) cold plate. The entire assembly is located in a thermal chamber operatina at +30 C. The accelerated stress test unit consists of five cells mounted in machined aluminum test sleeves and is operating at +10 C. The real-time LEO life test battery has met all performance requirements throuch the first 18

  9. A/M Area Vadose Zone Monitoring Plan

    SciTech Connect

    Kupar, J.; Jarosch, T.R.; Jackson, D.G. Jr.; Looney, B.B.; Jerome, K.M.; Riha, B.D.; Rossabi, J.; Van Pelt, R.S.

    1998-03-01

    Characterization and monitoring data from implementation and the first two and one half years of vadose zone remediation operations indicate that this activity has substantially improved the performance of the A/M Area Groundwater Corrective Action Program. During this period, vadose zone remediation removed approximately 225, 000 lbs (100,000 Kg) of chlorinated solvents (CVOCs) from the subsurface. Further, vadose zone remediation system operation increased the overall CVOC removal rate of the A/M Area Groundwater Corrective Action by 300% to 500% during this period versus the groundwater pump and treat system along. Various support activities have been performed to support operation and documentation of performance of the vadose zone remediation system. These activities address performance of existing systems (contaminant distributions, zone of influence, and process monitoring data), evaluation of suspect sources, evaluation of alternative/enhancement technologies, and initial development of remediation goals. In particular, the most recent A/M vadose zone remediation support activities (described in WSRC-RP-97-109) were completed and the results provide key documentation about system performance.

  10. Massive double white dwarfs and the AM CVn birthrate

    NASA Astrophysics Data System (ADS)

    Kilic, Mukremin; Brown, Warren R.; Heinke, Craig O.; Gianninas, A.; Benni, P.; Agüeros, M. A.

    2016-08-01

    We present Chandra and Swift X-ray observations of four extremely low-mass (ELM) white dwarfs with massive companions. We place stringent limits on X-ray emission from all four systems, indicating that neutron star companions are extremely unlikely and that the companions are almost certainly white dwarfs. Given the observed orbital periods and radial velocity amplitudes, the total masses of these binaries are greater than 1.02-1.39 M⊙. The extreme mass ratios between the two components make it unlikely that these binary white dwarfs will merge and explode as Type Ia or underluminous supernovae. Instead, they will likely go through stable mass transfer through an accretion disc and turn into interacting AM CVn. Along with three previously known systems, we identify two of our targets, J0811 and J2132, as systems that will definitely undergo stable mass transfer. In addition, we use the binary white dwarf sample from the ELM Survey to constrain the inspiral rate of systems with extreme mass ratios. This rate, 1.7 × 10-4 yr-1, is consistent with the AM CVn space density estimated from the Sloan Digital Sky Survey. Hence, stable mass transfer double white dwarf progenitors can account for the entire AM CVn population in the Galaxy.

  11. Direct coupling of a laser ablation cell to an AMS

    NASA Astrophysics Data System (ADS)

    Wacker, L.; Münsterer, C.; Hattendorf, B.; Christl, M.; Günther, D.; Synal, H.-A.

    2013-01-01

    In rare cases, cleaned samples can be directly inserted into a negative ion source of an AMS and still meet the requirements for long-term and stable measurements. We present the coupling of a laser ablation system to the gas ion source of an AMS system (MICADAS, ETH Zurich) for direct and continuous CO2 introduction. Solid carbonate samples like stalagmites or corals are suitable sample materials, which can be ablated and decomposed continuously using a pulsed laser focused onto the surface of a solid sample, which is placed in an airtight ablation cell. CO2 formed during the ablation of a CaCO3 sample is continually flushed with He into the gas ion source. The production rate of CO2 can be adjusted via the laser pulse repetition rate (1-20 Hz), the crater diameter (1-150 μm) and the energy density applied (0.2-3 mJ/pulse) of the laser (frequency quintupled Nd:YAG at 213 nm with 5 ns pulse duration). In our first test, measurements of one sample with known age were replicated within one sigma. Blanks showed 5% contamination of modern carbon of yet unknown origin. In order to develop LA-AMS into a routine sampling tool the ablation cell geometry and settings of the gas ion source have to be further optimized.

  12. Multiscale AM-FM Methods for Diabetic Retinopathy Lesion Detection

    PubMed Central

    Murray, Victor; Barriga, Eduardo; Murillo, Sergio; Pattichis, Marios; Davis, Herbert; Russell, Stephen; Abràmoff, Michael; Soliz, Peter

    2010-01-01

    We propose the use of multiscale amplitude-modulation frequency-modulation (AM-FM) methods for discriminating between normal and pathological retinal images. The method presented in this paper is tested using standard images from the Early Treatment Diabetic Retinopathy Study (ETDRS). We use 120 regions of 40×40 pixels containing 4 types of lesions commonly associated with diabetic retinopathy (DR) and two types of normal retinal regions that were manually selected by a trained analyst. The region types included: microaneurysms, exudates, neovascularization on the retina, hemorrhages, normal retinal background, and normal vessels patterns. The cumulative distribution functions of the instantaneous amplitude, the instantaneous frequency magnitude, and the relative instantaneous frequency angle from multiple scales are used as texture features vectors. We use distance metrics between the extracted feature vectors to measure interstructure similarity. Our results demonstrate a statistical differentiation of normal retinal structures and pathological lesions based on AM-FM features. We further demonstrate our AM-FM methodology by applying it to classification of retinal images from the MESSIDOR database. Overall, the proposed methodology shows significant capability for use in automatic DR screening. PMID:20129850

  13. I Am the Cat Who Walks by Himself

    NASA Astrophysics Data System (ADS)

    Peres, Asher

    2006-01-01

    The city of lions. Beaulieu-sur-Dordogne. The war starts. Drôle de guerre. Going to work. Going to school. Fleeing from village to village. Playing cat and mouse. The second landing. Return to Beaulieu. Return to Paris. Joining the boyscouts. Learning languages. Israel becomes independent. Arrival in Haifa. Kalay high school. Military training. The Hebrew Technion in Haifa. Relativity. Asher Peres. Metallurgy. Return to France. Escape from jail. Aviva. I am the cat who walks by himself, and all places are alike to me. Rudyard Kipling I am grateful to all those who contributed to this Festschrift which celebrates my 70th birthday and therefore the beginning of my eighth decade. In the Jewish religion, there is a prayer, “she-hehhyanu” to thank the Lord for having kept us alive and let us reach this day. I am an atheist and I have no Lord to thank, but I wish to thank many other people who are no longer alive and who helped me reach this point.

  14. Interpretation of AMS-02 results: correlations among dark matter signals

    SciTech Connect

    Simone, Andrea De; Riotto, Antonio; Xue, Wei E-mail: antonio.riotto@unige.ch

    2013-05-01

    The AMS-02 collaboration has recently released data on the positron fraction e{sup +}/(e{sup −}+e{sup +}) up to energies of about 350 GeV. If one insists on interpreting the observed excess as a dark matter signal, then we find it is best described by a TeV-scale dark matter annihilating into τ{sup +}τ{sup −}, although this situation is already severely constrained by gamma-ray measurements.The annihilation into μ{sup +}μ{sup −} is allowed by gamma-rays more than τ{sup +}τ{sup −}, but it gives a poorer fit to AMS-02 data. Moreover, since electroweak corrections induce correlations among the fluxes of stable particles from dark matter annihilations, the recent AMS-02 data imply a well-defined prediction for the correlated flux of antiprotons. Under the assumption that their future measurements will not show any antiproton excess above the background, the dark matter interpretation of the positron rise will possibly be ruled out by only making use of data from a single experiment. This work is the first of a program where we emphasize the role of correlations among dark matter signals.

  15. Biotechnology Facility: An ISS Microgravity Research Facility

    NASA Technical Reports Server (NTRS)

    Gonda, Steve R.; Tsao, Yow-Min

    2000-01-01

    The International Space Station (ISS) will support several facilities dedicated to scientific research. One such facility, the Biotechnology Facility (BTF), is sponsored by the Microgravity Sciences and Applications Division (MSAD) and developed at NASA's Johnson Space Center. The BTF is scheduled for delivery to the ISS via Space Shuttle in April 2005. The purpose of the BTF is to provide: (1) the support structure and integration capabilities for the individual modules in which biotechnology experiments will be performed, (2) the capability for human-tended, repetitive, long-duration biotechnology experiments, and (3) opportunities to perform repetitive experiments in a short period by allowing continuous access to microgravity. The MSAD has identified cell culture and tissue engineering, protein crystal growth, and fundamentals of biotechnology as areas that contain promising opportunities for significant advancements through low-gravity experiments. The focus of this coordinated ground- and space-based research program is the use of the low-gravity environment of space to conduct fundamental investigations leading to major advances in the understanding of basic and applied biotechnology. Results from planned investigations can be used in applications ranging from rational drug design and testing, cancer diagnosis and treatments and tissue engineering leading to replacement tissues.

  16. 47 CFR 73.154 - AM directional antenna partial proof of performance measurements.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... measurements are to be made within 3 to 15 kilometers from the center of the antenna array. When a monitoring... 47 Telecommunication 4 2010-10-01 2010-10-01 false AM directional antenna partial proof of...) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.154 AM directional...

  17. 47 CFR 73.21 - Classes of AM broadcast channels and stations.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 47 Telecommunication 4 2012-10-01 2012-10-01 false Classes of AM broadcast channels and stations. 73.21 Section 73.21 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.21 Classes of AM broadcast channels...

  18. 47 CFR 73.21 - Classes of AM broadcast channels and stations.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 47 Telecommunication 4 2013-10-01 2013-10-01 false Classes of AM broadcast channels and stations. 73.21 Section 73.21 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.21 Classes of AM broadcast channels...

  19. 40 CFR 60.2505 - Am I affected by this subpart?

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 40 Protection of Environment 6 2011-07-01 2011-07-01 false Am I affected by this subpart? 60.2505..., 1999 Introduction § 60.2505 Am I affected by this subpart? (a) If you are the Administrator of an air... indefinitely. For the convenience of the user, the revised text is set forth as follows: § 60.2505 Am...

  20. 47 CFR 73.21 - Classes of AM broadcast channels and stations.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 47 Telecommunication 4 2010-10-01 2010-10-01 false Classes of AM broadcast channels and stations. 73.21 Section 73.21 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.21 Classes of AM broadcast channels...

  1. 40 CFR 60.2505 - Am I affected by this subpart?

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 40 Protection of Environment 7 2012-07-01 2012-07-01 false Am I affected by this subpart? 60.2505... Commercial and Industrial Solid Waste Incineration Units Introduction § 60.2505 Am I affected by this subpart... revised text is set forth as follows: § 60.2505 Am I affected by this subpart? (a) If you are...

  2. 47 CFR 1.30002 - Tower construction or modification near AM stations.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 47 Telecommunication 1 2014-10-01 2014-10-01 false Tower construction or modification near AM... PROCEDURE Grants by Random Selection Disturbance of AM Broadcast Station Antenna Patterns § 1.30002 Tower construction or modification near AM stations. (a) Proponents of construction or significant modification of...

  3. 47 CFR 73.21 - Classes of AM broadcast channels and stations.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 47 Telecommunication 4 2014-10-01 2014-10-01 false Classes of AM broadcast channels and stations. 73.21 Section 73.21 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.21 Classes of AM broadcast channels...

  4. 47 CFR 73.21 - Classes of AM broadcast channels and stations.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 47 Telecommunication 4 2011-10-01 2011-10-01 false Classes of AM broadcast channels and stations. 73.21 Section 73.21 Telecommunication FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.21 Classes of AM broadcast channels...

  5. 78 FR 31627 - Thirteenth Meeting: RTCA Special Committee 222, Inmarsat AMS(R)S.

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-05-24

    ... Federal Aviation Administration Thirteenth Meeting: RTCA Special Committee 222, Inmarsat AMS(R)S. AGENCY... RTCA Special Committee 222, Inmarsat AMS(R)S. SUMMARY: The FAA is issuing this notice to advise the public of the thirteenth meeting of the RTCA Special Committee 222, Inmarsat AMS(R)S DATES: The...

  6. 78 FR 8684 - Twelfth Meeting: RTCA Special Committee 222, Inmarsat AMS(R)S

    Federal Register 2010, 2011, 2012, 2013, 2014

    2013-02-06

    ... Federal Aviation Administration Twelfth Meeting: RTCA Special Committee 222, Inmarsat AMS(R)S AGENCY... RTCA Special Committee 222, Inmarsat AMS(R)S. SUMMARY: The FAA is issuing this notice to advise the public of the twelfth meeting of the RTCA Special Committee 222, Inmarsat AMS(R)S. DATES: The...

  7. 47 CFR 1.30004 - Notice of tower construction or modification near AM stations.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... near AM stations. 1.30004 Section 1.30004 Telecommunication FEDERAL COMMUNICATIONS COMMISSION GENERAL....30004 Notice of tower construction or modification near AM stations. (a) Proponents of proposed tower construction or significant modification to an existing tower near an AM station that are subject to...

  8. 33 CFR 103.410 - Persons involved in the Area Maritime Security (AMS) Assessment.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... Maritime Security (AMS) Assessment. 103.410 Section 103.410 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY MARITIME SECURITY MARITIME SECURITY: AREA MARITIME SECURITY Area Maritime Security (AMS) Assessment § 103.410 Persons involved in the Area Maritime Security (AMS) Assessment....

  9. 33 CFR 103.410 - Persons involved in the Area Maritime Security (AMS) Assessment.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... Maritime Security (AMS) Assessment. 103.410 Section 103.410 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY MARITIME SECURITY MARITIME SECURITY: AREA MARITIME SECURITY Area Maritime Security (AMS) Assessment § 103.410 Persons involved in the Area Maritime Security (AMS) Assessment....

  10. 33 CFR 103.410 - Persons involved in the Area Maritime Security (AMS) Assessment.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... Maritime Security (AMS) Assessment. 103.410 Section 103.410 Navigation and Navigable Waters COAST GUARD, DEPARTMENT OF HOMELAND SECURITY MARITIME SECURITY MARITIME SECURITY: AREA MARITIME SECURITY Area Maritime Security (AMS) Assessment § 103.410 Persons involved in the Area Maritime Security (AMS) Assessment....

  11. 47 CFR 73.154 - AM directional antenna partial proof of performance measurements.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 47 Telecommunication 4 2013-10-01 2013-10-01 false AM directional antenna partial proof of...) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.154 AM directional antenna... measurements are to be made within 3 to 15 kilometers from the center of the antenna array. When a...

  12. 47 CFR 27.63 - Disturbance of AM broadcast station antenna patterns.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 47 Telecommunication 2 2010-10-01 2010-10-01 false Disturbance of AM broadcast station antenna... AM broadcast station antenna patterns. AWS and WCS licensees that construct or modify towers in the... the AM station antenna pattern which causes operation outside of the radiation parameters specified...

  13. 47 CFR 73.154 - AM directional antenna partial proof of performance measurements.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 47 Telecommunication 4 2012-10-01 2012-10-01 false AM directional antenna partial proof of...) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.154 AM directional antenna... measurements are to be made within 3 to 15 kilometers from the center of the antenna array. When a...

  14. 47 CFR 22.371 - Disturbance of AM broadcast station antenna patterns.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 47 Telecommunication 2 2012-10-01 2012-10-01 false Disturbance of AM broadcast station antenna....371 Disturbance of AM broadcast station antenna patterns. Public Mobile Service licensees that... necessary to correct disturbance of the AM station antenna pattern which causes operation outside of...

  15. 47 CFR 73.154 - AM directional antenna partial proof of performance measurements.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 47 Telecommunication 4 2011-10-01 2011-10-01 false AM directional antenna partial proof of...) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.154 AM directional antenna... measurements are to be made within 3 to 15 kilometers from the center of the antenna array. When a...

  16. 47 CFR 22.371 - Disturbance of AM broadcast station antenna patterns.

    Code of Federal Regulations, 2010 CFR

    2010-10-01

    ... 47 Telecommunication 2 2010-10-01 2010-10-01 false Disturbance of AM broadcast station antenna....371 Disturbance of AM broadcast station antenna patterns. Public Mobile Service licensees that... necessary to correct disturbance of the AM station antenna pattern which causes operation outside of...

  17. 47 CFR 73.154 - AM directional antenna partial proof of performance measurements.

    Code of Federal Regulations, 2014 CFR

    2014-10-01

    ... 47 Telecommunication 4 2014-10-01 2014-10-01 false AM directional antenna partial proof of...) BROADCAST RADIO SERVICES RADIO BROADCAST SERVICES AM Broadcast Stations § 73.154 AM directional antenna... measurements are to be made within 3 to 15 kilometers from the center of the antenna array. When a...

  18. 47 CFR 27.63 - Disturbance of AM broadcast station antenna patterns.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 47 Telecommunication 2 2013-10-01 2013-10-01 false Disturbance of AM broadcast station antenna... AM broadcast station antenna patterns. AWS and WCS licensees that construct or modify towers in the... the AM station antenna pattern which causes operation outside of the radiation parameters specified...

  19. 47 CFR 22.371 - Disturbance of AM broadcast station antenna patterns.

    Code of Federal Regulations, 2013 CFR

    2013-10-01

    ... 47 Telecommunication 2 2013-10-01 2013-10-01 false Disturbance of AM broadcast station antenna....371 Disturbance of AM broadcast station antenna patterns. Public Mobile Service licensees that... necessary to correct disturbance of the AM station antenna pattern which causes operation outside of...

  20. 47 CFR 27.63 - Disturbance of AM broadcast station antenna patterns.

    Code of Federal Regulations, 2012 CFR

    2012-10-01

    ... 47 Telecommunication 2 2012-10-01 2012-10-01 false Disturbance of AM broadcast station antenna... AM broadcast station antenna patterns. AWS and WCS licensees that construct or modify towers in the... the AM station antenna pattern which causes operation outside of the radiation parameters specified...

  1. 47 CFR 27.63 - Disturbance of AM broadcast station antenna patterns.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 47 Telecommunication 2 2011-10-01 2011-10-01 false Disturbance of AM broadcast station antenna... AM broadcast station antenna patterns. AWS and WCS licensees that construct or modify towers in the... the AM station antenna pattern which causes operation outside of the radiation parameters specified...

  2. 47 CFR 22.371 - Disturbance of AM broadcast station antenna patterns.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... 47 Telecommunication 2 2011-10-01 2011-10-01 false Disturbance of AM broadcast station antenna....371 Disturbance of AM broadcast station antenna patterns. Public Mobile Service licensees that... necessary to correct disturbance of the AM station antenna pattern which causes operation outside of...

  3. 47 CFR 73.1692 - Broadcast station construction near or installation on an AM broadcast tower.

    Code of Federal Regulations, 2011 CFR

    2011-10-01

    ... radiation pattern of the AM station. Both prior to construction of the tower modifications and upon... radials, shall be made to establish that the AM radiation pattern is essentially omnidirectional. Prior or... radiation pattern of the AM station. Both prior to the commencement of construction and upon completion...

  4. Finding of Correction Factor and Dimensional Error in Bio-AM Model by FDM Technique

    NASA Astrophysics Data System (ADS)

    Manmadhachary, Aiamunoori; Ravi Kumar, Yennam; Krishnanand, Lanka

    2016-06-01

    Additive Manufacturing (AM) is the swift manufacturing process, in which input data can be provided from various sources like 3-Dimensional (3D) Computer Aided Design (CAD), Computed Tomography (CT), Magnetic Resonance Imaging (MRI) and 3D scanner data. From the CT/MRI data can be manufacture Biomedical Additive Manufacturing (Bio-AM) models. The Bio-AM model gives a better lead on preplanning of oral and maxillofacial surgery. However manufacturing of the accurate Bio-AM model is one of the unsolved problems. The current paper demonstrates error between the Standard Triangle Language (STL) model to Bio-AM model of dry mandible and found correction factor in Bio-AM model with Fused Deposition Modelling (FDM) technique. In the present work dry mandible CT images are acquired by CT scanner and supplied into a 3D CAD model in the form of STL model. Further the data is sent to FDM machine for fabrication of Bio-AM model. The difference between Bio-AM to STL model dimensions is considered as dimensional error and the ratio of STL to Bio-AM model dimensions considered as a correction factor. This correction factor helps to fabricate the AM model with accurate dimensions of the patient anatomy. These true dimensional Bio-AM models increasing the safety and accuracy in pre-planning of oral and maxillofacial surgery. The correction factor for Dimension SST 768 FDM AM machine is 1.003 and dimensional error is limited to 0.3 %.

  5. 33 CFR 103.305 - Composition of an Area Maritime Security (AMS) Committee.

    Code of Federal Regulations, 2011 CFR

    2011-07-01

    ... 33 Navigation and Navigable Waters 1 2011-07-01 2011-07-01 false Composition of an Area Maritime Security (AMS) Committee. 103.305 Section 103.305 Navigation and Navigable Waters COAST GUARD, DEPARTMENT... Security (AMS) Committee § 103.305 Composition of an Area Maritime Security (AMS) Committee. (a) An...

  6. 33 CFR 103.305 - Composition of an Area Maritime Security (AMS) Committee.

    Code of Federal Regulations, 2014 CFR

    2014-07-01

    ... 33 Navigation and Navigable Waters 1 2014-07-01 2014-07-01 false Composition of an Area Maritime Security (AMS) Committee. 103.305 Section 103.305 Navigation and Navigable Waters COAST GUARD, DEPARTMENT... Security (AMS) Committee § 103.305 Composition of an Area Maritime Security (AMS) Committee. (a) An...

  7. 33 CFR 103.305 - Composition of an Area Maritime Security (AMS) Committee.

    Code of Federal Regulations, 2013 CFR

    2013-07-01

    ... 33 Navigation and Navigable Waters 1 2013-07-01 2013-07-01 false Composition of an Area Maritime Security (AMS) Committee. 103.305 Section 103.305 Navigation and Navigable Waters COAST GUARD, DEPARTMENT... Security (AMS) Committee § 103.305 Composition of an Area Maritime Security (AMS) Committee. (a) An...

  8. 33 CFR 103.305 - Composition of an Area Maritime Security (AMS) Committee.

    Code of Federal Regulations, 2012 CFR

    2012-07-01

    ... 33 Navigation and Navigable Waters 1 2012-07-01 2012-07-01 false Composition of an Area Maritime Security (AMS) Committee. 103.305 Section 103.305 Navigation and Navigable Waters COAST GUARD, DEPARTMENT... Security (AMS) Committee § 103.305 Composition of an Area Maritime Security (AMS) Committee. (a) An...

  9. 33 CFR 103.305 - Composition of an Area Maritime Security (AMS) Committee.

    Code of Federal Regulations, 2010 CFR

    2010-07-01

    ... 33 Navigation and Navigable Waters 1 2010-07-01 2010-07-01 false Composition of an Area Maritime Security (AMS) Committee. 103.305 Section 103.305 Navigation and Navigable Waters COAST GUARD, DEPARTMENT... Security (AMS) Committee § 103.305 Composition of an Area Maritime Security (AMS) Committee. (a) An...

  10. Metal-smelting facility

    SciTech Connect

    Kellogg, D.R.; Mack, J.E.; Thompson, W.T.; Williams, L.C.

    1982-01-01

    Currently there are 90,000 tons of contaminated ferrous and nonferrous scrap metal stored in aboveground scrap yards at the Department of Energy's Uranium Enrichment Facilities in Tennessee, Kentucky, and Ohio. This scrap is primarily contaminated with 100 to 500 ppM uranium at an average enrichment of 1 to 1.5% /sup 235/U. A study was performed that evaluated smelting of the ORGDP metal in a reference facility located at Oak Ridge. The study defined the process systems and baseline requirements, evaluated alternatives to smelting, and provided capital and operating costs for the reference facility. A review of the results and recommendations of this study are presented.

  11. GRC Ground Support Facilities

    NASA Technical Reports Server (NTRS)

    SaintOnge, Thomas H.

    2010-01-01

    The ISS Program is conducting an "ISS Research Academy' at JSC the first week of August 2010. This Academy will be a tutorial for new Users of the International Space Station, focused primarily on the new ISS National Laboratory and its members including Non-Profit Organizations, other government agencies and commercial users. Presentations on the on-orbit research facilities accommodations and capabilities will be made, as well as ground based hardware development, integration and test facilities and capabilities. This presentation describes the GRC Hardware development, test and laboratory facilities.

  12. National Facilities study

    NASA Technical Reports Server (NTRS)

    1994-01-01

    This study provides a set of recommendations for improving the effectiveness of our nation's aeronautics and space facilities. The study plan considers current and future government and commercial needs as well as DOD and NASA mission requirements through the year 2023. It addresses shortfalls in existing capabilities, new facility requirements, upgrades, consolidations, and phase-out of existing facilities. If the recommendations are implemented, they will provide world-class capability where it is vital to our country's needs and make us more efficient in meeting future needs.

  13. Subcellular distribution of sup 241 Am in beagle lungs following inhalation of sup 241 Am(NO sub 3 ) sub 3 aerosols

    SciTech Connect

    Taya, A.; Mewhinney, J.A.; Guilmette, R.A.

    1991-01-01

    The aim of this study was to characterize the binding nature of a small fraction of Am retained for a long time in the beagle lung. Three dogs were exposed to Am nitrate aerosols (1.3--1.6 {mu}m activity median aerodynamic diameter; {sigma}{sub g} 1.8--1.9) to give initial lung burdens of 109--131 kBq. At 21 d after exposure, lung lobes were processed by homogenization/fractionation methods and autoradiography techniques. The results suggest that after the dissolution of Am nitrate particles, most of the Am retained in the lungs becomes associated with the connective tissue. The treatment of connective tissue samples with DTPA and HCl, which released various amounts of Am depending on the treatment periods, further suggests that Am is bound to different binding sites within the connective tissue, such that Am is eventually from the majority of these sites, leaving only a small fraction of the initially deposited Am bound for a long time. It is suggested that this fraction is the basis of the transformed compartment'' described in the Mewhinney and Griffith biokinetic model for Am. 5 refs., 3 tabs.

  14. Wear Mechanism Maps for Magnesium Alloy AM60 and Composite AM60-9% (Al2O3)f

    NASA Astrophysics Data System (ADS)

    Ullah Khan, Muhammad Zafar

    The purpose of this work was to study the tribological behaviour of squeeze cast Mg alloy AM60 and its composite AM60-9% (Al2O3) f. Dry sliding wear tests were performed on specimens of these materials using a block-on-ring tribometer which was equipped with a COF and temperature measurement system. Wear, COF and temperature maps were constructed to illustrate the effect of temperature and COF on the wear behaviour of the Mg alloy and it's composite. Four wear regimes namely low, mild, transient and severe wear were identified. The transition from mild to severe wear regime was found to be dependent on the bulk temperature of the specimen. Oxidational wear prevailed in low and mild wear whereas plastic deformation induced wear and melt wear controlled the wear rates in transient and severe wear regimes, respectively. This study shows that the incorporation of Al2O3 fibres in AM60 alloy improved the wear resistance of the resulting composite by delaying the transition from mild to severe wear.

  15. A cryogenic test facility

    NASA Astrophysics Data System (ADS)

    Veenendaal, Ian

    The next generation, space-borne instruments for far infrared spectroscopy will utilize large diameter, cryogenically cooled telescopes in order to achieve unprecedented sensitivities. Low background, ground-based cryogenic facilities are required for the cryogenic testing of materials, components and subsystems. The Test Facility Cryostat (TFC) at the University of Lethbridge is a large volume, closed cycle, 4K cryogenic facility, developed for this purpose. This thesis discusses the design and performance of the facility and associated external instrumentation. An apparatus for measuring the thermal properties of materials is presented, and measurements of the thermal expansion and conductivity of carbon fibre reinforced polymers (CFRPs) at cryogenic temperatures are reported. Finally, I discuss the progress towards the design and fabrication of a demonstrator cryogenic, far infrared Fourier transform spectrometer.

  16. Shuttle Landing Facility

    NASA Video Gallery

    The Shuttle Landing Facility at NASA's Kennedy Space Center in Florida marked the finish line for space shuttle missions since 1984. It is also staffed by a group of air traffic controllers who wor...

  17. Facility Modernization Report

    SciTech Connect

    Robinson, D; Ackley, R

    2007-05-10

    Modern and technologically up-to-date facilities and systems infrastructure are necessary to accommodate today's research environment. In response, Lawrence Livermore National Laboratory (LLNL) has a continuing commitment to develop and apply effective management models and processes to maintain, modernize, and upgrade its facilities to meet the science and technology mission. The Facility Modernization Pilot Study identifies major subsystems of facilities that are either technically or functionally obsolete, lack adequate capacity and/or capability, or need to be modernized or upgraded to sustain current operations and program mission. This study highlights areas that need improvement, system interdependencies, and how these systems/subsystems operate and function as a total productive unit. Although buildings are 'grandfathered' in and are not required to meet current codes unless there are major upgrades, this study also evaluates compliance with 'current' building, electrical, and other codes. This study also provides an evaluation of the condition and overall general appearance of the structure.

  18. FDA Certified Mammography Facilities

    MedlinePlus

    ... Products Radiation-Emitting Products Home Radiation-Emitting Products Mammography Quality Standards Act and Program Consumer Information (MQSA) ... it Email Print This list of FDA Certified Mammography Facilities is updated weekly. If you click on ...

  19. College/University Facilities.

    ERIC Educational Resources Information Center

    Athletic Business, 2002

    2002-01-01

    Describes the building designs of 117 state-of-the-art of college athletic and recreational facilities, including the educational contexts and design goals. Includes information on architects and designers, construction cost, size, and occupancy date. Also provides photographs. (EV)

  20. Special Feature: Facilities.

    ERIC Educational Resources Information Center

    Storm, George; And Others

    1993-01-01

    Includes "Planning Laboratory Design" (Storm); "Perkins Money for Automotive Programs" (Cash); "Stretching a Budget" (Warren); "Video Teleconferencing--Powerful Communication for Occupational Educators" (Major); "Danger: Hazardous Materials" (Brown); and "Keeping Facilities Safe--Electrical Safety and Maintenance" (Kirk). (JOW)

  1. Photovoltaic systems test facility

    NASA Technical Reports Server (NTRS)

    1979-01-01

    Facility provides broad and flexible capability for evaluating photovoltaic systems and design concepts. As 'breadboard' system, it can be used to check out complete systems, subsystems, and components before installation in actual service.

  2. Ames Hybrid Combustion Facility

    NASA Technical Reports Server (NTRS)

    Zilliac, Greg; Karabeyoglu, Mustafa A.; Cantwell, Brian; Hunt, Rusty; DeZilwa, Shane; Shoffstall, Mike; Soderman, Paul T.; Bencze, Daniel P. (Technical Monitor)

    2003-01-01

    The report summarizes the design, fabrication, safety features, environmental impact, and operation of the Ames Hybrid-Fuel Combustion Facility (HCF). The facility is used in conducting research into the scalability and combustion processes of advanced paraffin-based hybrid fuels for the purpose of assessing their applicability to practical rocket systems. The facility was designed to deliver gaseous oxygen at rates between 0.5 and 16.0 kg/sec to a combustion chamber operating at pressures ranging from 300 to 900. The required run times were of the order of 10 to 20 sec. The facility proved to be robust and reliable and has been used to generate a database of regression-rate measurements of paraffin at oxygen mass flux levels comparable to those of moderate-sized hybrid rocket motors.

  3. NETL - Fuel Reforming Facilities

    SciTech Connect

    2013-06-12

    Research using NETL's Fuel Reforming Facilities explores catalytic issues inherent in fossil-energy related applications, including catalyst synthesis and characterization, reaction kinetics, catalyst activity and selectivity, catalyst deactivation, and stability.

  4. Launch facilities as infrastructure

    NASA Astrophysics Data System (ADS)

    Trial, Mike

    The idea is put forth that launch facilities in the U.S. impose inefficiencies on launch service providers due to the way they have been constructed. Rather than constructing facilities for a specific program, then discarding them when the program is complete, a better use of the facilities investment would be in constructing facilities flexible enough for use by multiple vehicle types over the course of a 25-year design lifetime. The planned National Launch System (NLS) program offers one possible avenue for the federal government to provide a nucleus of launch infrastructure which can improve launch efficiencies. The NLS goals are to develop a new space launch system to meet civil and national needs. The new system will be jointly funded by DOD and NASA but will actively consider commercial space needs. The NLS will improve reliability, responsiveness, and mission performance, and reduce operating costs. The specifics of the infrastructure concept are discussed.

  5. NETL - Fuel Reforming Facilities

    ScienceCinema

    None

    2014-06-27

    Research using NETL's Fuel Reforming Facilities explores catalytic issues inherent in fossil-energy related applications, including catalyst synthesis and characterization, reaction kinetics, catalyst activity and selectivity, catalyst deactivation, and stability.

  6. Skilled nursing or rehabilitation facilities

    MedlinePlus

    ... page: //medlineplus.gov/ency/patientinstructions/000435.htm Skilled nursing or rehabilitation facilities To use the sharing features ... facility. Who Needs to go to a Skilled Nursing or Rehabilitation Facility? Your health care provider may ...

  7. Substance Abuse Treatment Facility Locator

    MedlinePlus

    ... Health Services Locator Buprenorphine Physician Locator Find a Facility in Your State To locate the drug and ... Service . Privacy Policy . Home | About the Locator | Find Facilities Near You | Find Facilities by City, County, State ...

  8. Calibration Facilities for NIF

    SciTech Connect

    Perry, T.S.

    2000-06-15

    The calibration facilities will be dynamic and will change to meet the needs of experiments. Small sources, such as the Manson Source should be available to everyone at any time. Carrying out experiments at Omega is providing ample opportunity for practice in pre-shot preparation. Hopefully, the needs that are demonstrated in these experiments will assure the development of (or keep in service) facilities at each of the laboratories that will be essential for in-house preparation for experiments at NIF.

  9. Auditing radiation sterilization facilities

    NASA Astrophysics Data System (ADS)

    Beck, Jeffrey A.

    The diversity of radiation sterilization systems available today places renewed emphasis on the need for thorough Quality Assurance audits of these facilities. Evaluating compliance with Good Manufacturing Practices is an obvious requirement, but an effective audit must also evaluate installation and performance qualification programs (validation_, and process control and monitoring procedures in detail. The present paper describes general standards that radiation sterilization operations should meet in each of these key areas, and provides basic guidance for conducting QA audits of these facilities.

  10. Mound facility physical characterization

    SciTech Connect

    Tonne, W.R.; Alexander, B.M.; Cage, M.R.; Hase, E.H.; Schmidt, M.J.; Schneider, J.E.; Slusher, W.; Todd, J.E.

    1993-12-01

    The purpose of this report is to provide a baseline physical characterization of Mound`s facilities as of September 1993. The baseline characterizations are to be used in the development of long-term future use strategy development for the Mound site. This document describes the current missions and alternative future use scenarios for each building. Current mission descriptions cover facility capabilities, physical resources required to support operations, current safety envelope and current status of facilities. Future use scenarios identify potential alternative future uses, facility modifications required for likely use, facility modifications of other uses, changes to safety envelope for the likely use, cleanup criteria for each future use scenario, and disposition of surplus equipment. This Introductory Chapter includes an Executive Summary that contains narrative on the Functional Unit Material Condition, Current Facility Status, Listing of Buildings, Space Plans, Summary of Maintenance Program and Repair Backlog, Environmental Restoration, and Decontamination and Decommissioning Programs. Under Section B, Site Description, is a brief listing of the Site PS Development, as well as Current Utility Sources. Section C contains Site Assumptions. A Maintenance Program Overview, as well as Current Deficiencies, is contained within the Maintenance Program Chapter.

  11. Engineering directorate technical facilities catalog

    NASA Technical Reports Server (NTRS)

    Maloy, Joseph E.

    1993-01-01

    The Engineering Directorate Technical Facilities Catalog is designed to provide an overview of the technical facilities available within the Engineering Directorate at the National Aeronautics and Space Administration (NASA), Lyndon B. Johnson Space Center (JSC) in Houston, Texas. The combined capabilities of these engineering facilities are essential elements of overall JSC capabilities required to manage and perform major NASA engineering programs. The facilities are grouped in the text by chapter according to the JSC division responsible for operation of the facility. This catalog updates the facility descriptions for the JSC Engineering Directorate Technical Facilities Catalog, JSC 19295 (August 1989), and supersedes the Engineering Directorate, Principle test and Development Facilities, JSC, 19962 (November 1984).

  12. Electrochemical oxidation of 243Am(III) in nitric acid by a terpyridyl-derivatized electrode

    SciTech Connect

    Dares, C. J.; Lapides, A. M.; Mincher, B. J.; Meyer, T. J.

    2015-11-05

    A high surface area, tin-doped indium oxide electrode surface-derivatized with a terpyridine ligand has been applied to the oxidation of trivalent americium to Am(V) and Am(VI) in nitric acid. Potentials as low as 1.8 V vs. the saturated calomel electrode are used, 0.7 V lower than the 2.6 V potential for one-electron oxidation of Am(III) to Am(IV) in 1 M acid. This simple electrochemical procedure provides, for the first time, a method for accessing the higher oxidation states of Am in non-complexing media for developing the coordination chemistries of Am(V) and Am(VI) and, more importantly, for separation of americium from nuclear waste streams.

  13. Radiocarbon signal of a low and intermediate level radioactive waste disposal facility in nearby trees.

    PubMed

    Janovics, R; Kelemen, D I; Kern, Z; Kapitány, S; Veres, M; Jull, A J T; Molnár, M

    2016-03-01

    Tree ring series were collected from the vicinity of a Hungarian radioactive waste treatment and disposal facility and from a distant control background site, which is not influenced by the radiocarbon discharge of the disposal facility but it represents the natural regional (14)C level. The (14)C concentration of the cellulose content of tree rings was measured by AMS. Data of the tree ring series from the disposal facility was compared to the control site for each year. The results were also compared to the (14)C data of the atmospheric (14)C monitoring stations at the disposal facility and to international background measurements. On the basis of the results, the excess radiocarbon of the disposal facility can unambiguously be detected in the tree from the repository site. PMID:26704325

  14. Facility Environmental Vulnerability Assessment

    SciTech Connect

    Van Hoesen, S.D.

    2001-07-09

    From mid-April through the end of June 2001, a Facility Environmental Vulnerability Assessment (FEVA) was performed at Oak Ridge National Laboratory (ORNL). The primary goal of this FEVA was to establish an environmental vulnerability baseline at ORNL that could be used to support the Laboratory planning process and place environmental vulnerabilities in perspective. The information developed during the FEVA was intended to provide the basis for management to initiate immediate, near-term, and long-term actions to respond to the identified vulnerabilities. It was expected that further evaluation of the vulnerabilities identified during the FEVA could be carried out to support a more quantitative characterization of the sources, evaluation of contaminant pathways, and definition of risks. The FEVA was modeled after the Battelle-supported response to the problems identified at the High Flux Beam Reactor at Brookhaven National Laboratory. This FEVA report satisfies Corrective Action 3A1 contained in the Corrective Action Plan in Response to Independent Review of the High Flux Isotope Reactor Tritium Leak at the Oak Ridge National Laboratory, submitted to the Department of Energy (DOE) ORNL Site Office Manager on April 16, 2001. This assessment successfully achieved its primary goal as defined by Laboratory management. The assessment team was able to develop information about sources and pathway analyses although the following factors impacted the team's ability to provide additional quantitative information: the complexity and scope of the facilities, infrastructure, and programs; the significantly degraded physical condition of the facilities and infrastructure; the large number of known environmental vulnerabilities; the scope of legacy contamination issues [not currently addressed in the Environmental Management (EM) Program]; the lack of facility process and environmental pathway analysis performed by the accountable line management or facility owner; and poor

  15. Technological developments for strontium-90 determination using AMS

    NASA Astrophysics Data System (ADS)

    Satou, Yukihiko; Sueki, Keisuke; Sasa, Kimikazu; Matsunaka, Tetsuya; Takahashi, Tsutomu; Shibayama, Nao; Izumi, Daiki; Kinoshita, Norikazu; Matsuzaki, Hiroyuki

    2015-10-01

    Accelerator mass spectrometry (AMS) is one of method used for 90Sr determination. It would enable rapid 90Sr measurements from environmental samples such as water, soil, and milk. However, routine analysis of 90Sr using AMS has not yet been achieved because of difficulties associated with isobaric separation and production of intense negative ion beams characterized by currents from hundreds of nanoamperes to several microamperes. We have developed a rapid procedure for preparing samples with optimum compositions for use with AMS, which enables production of intense Sr beam currents from an ion source. Samples of SrF2 were prepared from a standard Sr solution and agricultural soil. The time required to prepare a SrF2 sample from a soil sample was 10 h. Negative 88SrF3- ions were successfully extracted at 500 nA from mixed samples of SrF2 and PbF2. In the present work, negative ions of 90Zr, included as an impurity, were accelerated with a tandem accelerator operated at a terminal voltage of 5 MV. Ions characterized by a charge state of 6+ were channeled into a gas counter. An atomic ratio of 90Zr/88Sr of 3 × 10-8 was estimated for the soil sample. No signal was detected from the assay of PbF2, which was pressed in an aluminum cathode, for a mass number of 90. PbF2 revealed good performance in the production of negative SrF3- molecular ion beams and detection of 90Sr with a gas counter.

  16. Photovoltaic Engineering Testbed: A Facility for Space Calibration and Measurement of Solar Cells on the International Space Station

    NASA Technical Reports Server (NTRS)

    Landis, Geoffrey A.; Bailey, Sheila G.; Jenkins, Phillip; Sexton, J. Andrew; Scheiman, David; Christie, Robert; Charpie, James; Gerber, Scott S.; Johnson, D. Bruce

    2001-01-01

    The Photovoltaic Engineering Testbed ("PET") is a facility to be flown on the International Space Station to perform calibration, measurement, and qualification of solar cells in the space environment and then returning the cells to Earth for laboratory use. PET will allow rapid turnaround testing of new photovoltaic technology under AM0 conditions.

  17. Electronic structure of polycrystalline Cd metal using 241Am radioisotope

    NASA Astrophysics Data System (ADS)

    Dhaka, M. S.; Sharma, G.; Mishra, M. C.; Sharma, B. K.

    2014-04-01

    Electronic structure study of the polycrystalline cadmium metal is reported. The experimental measurement is undertaken on a polycrystalline sheet sample using 59.54 keV radioisotope of 241Am. These results are compared with the ab initio calculations. The theoretical calculations are performed using linear combination of atomic orbitals (LCAO) method employing the density functional theories (DFT) and Hartree-Fock (HF) and augmented plane wave (APW) methods. The spherically averaged APW and LCAO based theoretical Compton profiles are in good agreement with the experimental measurement however the APW based theoretical calculations show best agreement.

  18. A+M Collisional Databases in ALADDIN Format

    DOE Data Explorer

    ALADDIN (A Labelled Atomic Data Interface) is a database system developed in order to provide a standard and flexible format and interface for the exchange and management of atomic, molecular and plasma-material interaction data of interest to fusion research. As part of the Atomic and Molecular Data Information System (AMDIS), introduced by the IAEA Atomic and Molecular Data Unit, the ALADDIN interface is available on-line. Twelve databases from DOE and IAEA sources are available from the CFADC website under the heading A+M Collisional Databases.

  19. Fission dynamics study in 243Am and 254Fm

    NASA Astrophysics Data System (ADS)

    Banerjee, K.; Ghosh, T. K.; Roy, P.; Bhattacharya, S.; Chaudhuri, A.; Bhattacharya, C.; Pandey, R.; Kundu, S.; Mukherjee, G.; Rana, T. K.; Meena, J. K.; Mohanto, G.; Dubey, R.; Saneesh, N.; Sugathan, P.; Guin, R.; Das, S.; Bhattacharya, P.

    2016-06-01

    Fission fragment mass distributions in the reactions 11B + 232Th and 11B + 243Am were measured in an energy range around the barrier. No sudden change in the width of the mass distribution as a function of center-of-mass energy was observed at near-barrier energies, indicating no quasifission transition in the near-barrier energies. Interestingly, the previous measurements of fission fragment angular anisotropies for the same systems showed significant departure from the statistical saddle-point model predictions at near-barrier energies, indicating the presence of nonequilibrium fission processes.

  20. Determination of the (241)Am activity in real contaminated slag.

    PubMed

    Burda, O; Arnold, D; Wershofen, H

    2016-03-01

    One of the main tasks of the EMRP IND04 MetroMetal project "Ionising Radiation Metrology for the Metallurgical Industry" was to develop sets of reference sources in various matrices such as cast steel, slag and fume dust for the calibration of the gamma spectrometric detector prototypes developed in the frame of the project. This work is focused on the characterisation of real contaminated slag material with (241)Am using the transmission measurements in combination with Monte-Carlo simulations. The method and the results are presented and discussed. PMID:26688357