The neutron emergency dosimeter system developed on behalf of the National Center for Radiation Protection of the GDR is described. It consists of an emergency badge (Au, Cu, In, and S foils, solid-state track detector, LiF thermoluminescence dosimeter probe), a button hole dosimeter (Cu and S foils), and ...

Apr 21, 2011 ... Included in the badge dosimeters are thermoluminescent dosimeter chips, which are analyzed on Earth. Passive radiation dosimeters are placed ...

Radiation dosimeters and dosimeter badges. The dosimeter badges include first and second parts which are connected to join using a securement to produce a sealed area in which at least one dosimeter is held and protected. The badge parts are separated ...

... Accession Number : ADA259985. Title : A Passive Badge Dosimeter for HCL Detection and Measurement - SBIR 90.I (A90-189). ...

A brief description of the construction and operation of the semiautomatic dosimeter loader for TLD badges now in use at Lawrence Livermore Laboratory is given.

The Los Alamos Scientific Laboratory is in the process of converting from a film to a thermoluminescent dosimeter (TLD) badge. The new badge is made of Cycolac plastic and contains an aluminum card in which are mounted three TLD-700s and one TLD-600 LiF c...

Five commercial badge-type carbon monoxide dosimeters were evaluated. Color changes in the badge reagent indicated the presence of carbon monoxide. Possible effects of ambient conditions on dosimeter response to CO during or after coal mine fires or explo...

A description of a wrist film badge dosimeter which employs Cd and Sn shields is given. Data on the respcnse of the dosimeter to several types and energies of radiation are presented. A dose of 5 mrem of slow neutrons is detectable. (C.J.G.)

Through Small Business Innovative Research (SBIR) contracts with GMD, a two- chemistry badge was developed to monitor personnel exposure to hydrazine (Hz) ...

The requirements for monitors measuring the radiation dose to which persons are exposed are discussed. The characteristics of thermoluminescent dosimeters, photoluminiscent dosimeters, ionographic dosimeters (only for neutrons), pen dosimeters and film-badges are discussed. It is shown that no ...

This patent describes a radiation dosimeter badge having at least a first part and a second part; at least one of the parts including a dosimeter holder for holding at least one luminescent dosimeter; the first and second parts being controllably detachable using a rotatable mechanical connection. It comprises a ...

A semiautomatic film badge system was developed to process dosimeter film faster and more reliably than the previously used manual method. The films are automatically loaded and unloaded from the badges and marked with identifying numbers, manually developed, and automatically read. The resultant information is punched ...

A passive, colorimetric dosimeter badge was manufactured for NASA by GMD Systems. The badge consisted of two indicators: para-dimethylaminobenzaldehyde (PDAB) and vanillin. When exposed to hydrazine or monomethylhydrazine (MMH), the PDAB turns orange and ...

... liquid crystal molecules. These samples were prepared using a blend of polyvinyl alcohol (PVA), water and indicator molecules. ...

A personnel badge and associated radiation detector is described. The badge would contain identity markings, blood type, immunization, and other personal data. The identity can be punched into the radiation dosimeter so that the dosimeter can be separated and read. A permanent or cumulative radiation ...

An intercomparison was made of the performance of two thermoluminescent dosimetry (TLD) systems and conventional film badges in a routine gamma-ray personnel monitoring operation. Quartz fiber pocket dosimeters were worn in some cases also, but were read ...

The relative nmerits and disadvantages of the pocket dosimeter and the film badge for monitoring exposure in medical personnel are discussed, and it is concluded that the film badge is the only practical method for use with the types of ionizing radiation encountered in medical therapy and research. (H.H.D.)

This document reports the results of testing of the Hanford Personnel Nuclear Accident Dosimeter (PNAD) during a criticality accident dosimeter intercomparison exercise at the CEA Valduc Center on October 13, 14, and 15, 2009.

... measured by film badges, glass microdosimeters, cobalt-activated borosilicate glass, calcium fluoride thermoluminescent dosimeters, and formic ...

Apr 21, 2011 ... Extravehicular Activity Radiation Monitoring (EVARM) reader and dosimeter badges . Hardware Type. Measurement Devices, Radiation ...

Apr 21, 2011 ... Radiation data from the Extravehicular Activity Radiation Monitoring (EVARM) dosimeter badges was downloaded to the EVARM reader (shown) ...

effect transistor (MOSFET) dosimeters, a 0.04-in2 silicon chip placed on a ... station significantly affected the dose of radiation each badge received. ...

In a study of selected regions of high background radiation in Brazil, thallium-activated NaI crystals were used as density amplifiers for dosimeter film badges. Calibration experiments were made, and the field results are summarized. (auth)

In January 1987, the dosimetry system at the Nevada Test Site changed from a film badge dosimetry program to the Panasonic Thermoluminescent Dosimeter (TLD) system to monitor external radiation exposure to personnel working at the Nevada Test Site. In ord...

Certain improvements were made in the pocket condenser-chamber dosimeter with the object of increasing its reliability and accuracy, and of allowing the dose received to be read as often as required without affecting the charge on the chamber. It is proposed that the improved dosimeter might be cheaper and more sensitive than a quartz fiber ...

A dosimeter is provided for collecting and detecting vapors and aerosols of organic compounds. The dosimeter comprises a lightweight, passive device that can be conveniently worn by a person as a badge or placed at a stationary location. The dosimeter includes a sample collector comprising a porous web treated with ...

A dosimeter is provided for collecting and detecting vapors and aerosols of organic compounds. The dosimeter comprises a lightweight, passive device that can be conveniently worn by a person as a badge or placed at a stationary location. The dosimeter includes a sample collector comprising a porous web treated with ...

This report is part of the Nuclear Test Personnel Review. It summarizes, for the period 1945-1962, those radiac instruments, pocket dosimeters, and film badges used by participants at atmospheric tests. It also includes the accuracy of each, where documentation can be found, or estimates of accuracy based on similar equipment and ...

An evaluation of the Martin Marietta Energy Systems, Inc., Personnel Nuclear Accident Dosimeters was undertaken to determine if they could meet DOE 5480.11 requirements for photon dose assessment. Dosimeters were irradiated with a (sup 137)Cs source to do...

Army civilian and military personnel are exposed occupationally to various forms of ionizing radiation, and the U.S. Army Ionizing Radiation Dosimetry Center is responsible for monitoring these exposures. There are several accepted methods for monitoring radiation exposure, the oldest being the film badge method. A modern alternative method, which has achieved widespread ...

A common problem in personnel dosimetry is the measurement of radiation dose with personnel dosimeters when several types and energies of radiation may be present concurrently. The new Hanford film badge dosimeter was designed to solve this problem to the best extent possible within the available film dosimetry technology. ...

A complex personal dosimeter is disclosed including a gamma- and beta-ray dosimeter block and a neutron dosimeter block. These two blocks are enclosed in a badge case type package so that a person can secure the dosimeter on his clothing. The gamma- and beta-ray dosimeter ...

, dosimeters, and the dosimeter charger. Discuss the uses and limitations. Provide proper care Florida's background radiation is between 40-50 cpm #12;Dosimeters Those commonly available include: CD V. Dosimeter Difficulties Problem Hairline moves as the dosimeter is removed from the charger. ...

A new passive dosimeter has been developed for monitoring airborne vapors and liquid aerosols of potentially hazardous polynuclear aromatic compounds. The device is a self-contained, badge-size unit that passively collects on filter paper the compounds to be monitored at a diffusion-controlled rate. Collection is followed by in-situ, room temperature ...

... transmit light instead of electricity for next-generation electronic devices . ... On Wednesday, the crew collected background radiation dosimeter badge ...

The A.E.A. epidemiological study depends for its radiation dose data on records of film badge doses which have been stored continuously since 1947. The records were originally kept to assist in the control of radiation hazard to the individual and for tha...

Detailed records since 1959 on the radiation exposure of all workers of the Atomic Energy Establishment of the United Arab Republic are reported. All workers are provided with film badges and pocket dosimeters. (C.H.)

Techniques for calibrating survey meters, pocket chambers, and film badge personnel dosimeters are given. (T.R.H.)

...not limited to, the use of devices to measure employee exposures and the attachment of personal sampling equipment such as dosimeters, pumps, badges and other similar devices to employees in order to monitor their exposures. (c) In taking...

...not limited to, the use of devices to measure employee exposures and the attachment of personal sampling equipment such as dosimeters, pumps, badges and other similar devices to employees in order to monitor their exposures. (c) In taking...

The Los Alamos Scientific Laboratory is converting from a film badge to a badge containing thermoluminescent dosimeters (TLD's). The new dosimeter consists of a plastic badge holding an aluminum card which contains three TLD-700 and one TLD-600 Harshaw LiF chips. In the albedo-neutron ...

Panasonic thermoluminescent dosimeters (TLDs) are used as the photon dose assessment part of the personal nuclear accident dosimeter (PNAD) and may be used for the same purpose with the fixed nuclear accident dosimeter (FNAD). To demonstrate compliance wi...

The evaluation of the dose that a person received in a criticality accident can be difficult. Most accidents have occurred when the person was not wearing nuclear accident dosimetry and since the NRC no longer requires these dosimeters, future dose evalua...

Maximum permissible levels for occupational exposure are discussed and various aspects of assessment of hazards to exposed workers are considered. The successful control of external radiation requires the choice of suitable techniques, facilities, and monitoring equipment. Discussion is given on: strength of radiation source; closeness of approach to the source; dose rates at working ...

The texts of the principal papers and summaries of discussion on film badge dosimetry are presented. Various systems used for film badges, the photographic action of ionizing radiation, the comparative response of various photographic films, and problems encountered in personnel monitoring are reviewed. The design is described of a film ...

Despite continued advances in x-ray technology, evidence indicates that x-radiation injuries occur today to an excessive degree. These injuries have led to a progressive stiffening of standards of permissible exposure, especially in the past 15 years. Protection from radiation damage is logically based on dosimetry, preferably administered by a centralized service laboratory. The experience of two ...

Work performed since the last Workshop meeting is summarized. The studies have been divided into the following sections: (1) response of albedo neutron dosimeters to low energy neutrons; (2) discussion of dose-equivalent conversion factors; (3) modification of the A-B remmeter; (4) the effect of distance from the body on the response of albedo neutron ...

Uncertainty exists as to expected responses of personnel dosimeters when worn in fields of 16N gamma's. Doses to internal organs are also not well known. Accordingly, the response of the Ontario Hydro (OH) TLD badge in terms of the effective dose equivalent (EDE) concept of ICRP Publication 26 was evaluated. Photons at 6-7 MeV were generated from ...

This study was undertaken to compare the response of three dosimeters to different environments. Comanche Peak Nuclear Power Plant wants to replace the current badge of record. The RaDos DIS-1 direct-ion storage dosimeter (DIS-1) and the Landauer InLight optically stimulated luminescence dosimeter (OSL) are the two ...

In January 1987, the dosimetry system at the Nevada Test Site changed from a film badge dosimetry program to the Panasonic Thermoluminescent Dosimeter (TLD) system to monitor external radiation exposure to personnel working at the Nevada Test Site. In order to implement the Panasonic TLD system, a combination dosimeter and security ...

The Dosimetry Applications Research (DOSAR) group at Oak Ridge National Laboratory has established a national and international program for dosimetry testing and intercomparison. Under this program there have been twenty-two nuclear accident dosimeter int...

The neutron dosimetry system incorporated in the NTS personnel dosimeter and the method of using it for nuclear accident dosimetry (NAD) are described. Details of the calibration procedure are given. Some useful cross sections and other detailed data are tabulated. (auth)

The calibration factor for albedo neutron dosimeters varies greatly depending upon the energy of the neutrons in the exposure. Calibration results obtained over an eight-year period at each Lawrence Livermore National Laboratory facility where neutron exposure may occur were reviewed. A stronger relationship than expected was found between the ratio of the readings of the ...

Neutron energy spectrum measurements performed at the Clinton P. Anderson Meson Physics Facility indicated potential areas for high energy neutron exposure to personnel. The low sensitivity of the Los Alamos thermoluminescent dosimeter (TLD) to high energy neutrons warranted issuing a NTA dosimeter in addition to the TLD badge to ...

This paper reports that three basic challenges are inherent in the design of a thermoluminescent dosimeter for a power reactor beta/gamma spectrum: the dosimeter must meet the current standard for performance in laboratory testing, the dosimeter must properly respond to a power reactor spectrum that is different from that specified in ...

A dosimeter for real-time, colorimetric detection of hydrazine in air has been developed. The passive badge consists of a dosimeter card containing a vanillin solution coated on a thin paper substrate. The active patch consists of a thick cellulose substrate coated with a vanillin solution. When placed in a plastic sample holder ...

Ongoing uncertainties have existed regarding possible effects at low photon energies of two copper filters covering Element 1 of the Harshaw Type-8814 thermoluminescent dosimeter badge casing. To address these, Brookhaven National Laboratory's (BNL) Personnel Monitoring Group conducted a test in which Type-8814 badges with one copper ...

Unusual reported dose equivalents due to high-energy photons for two individuals prompted the investigation of the effects of severe heating conditions expected in closed vehicles during southwestern summer months on commercial film dosimeters. A historical review of dosimetry records revealed several additional reported high-energy photon exposures for individuals using only ...

Problems are discussed which were involved in dosimetric calculations on three individuals exposed to mixed gamma and neutron irradiation from an accidental critical excursion in a Pu processing plant. Complications connected with evaluation of doses to personnel involved in the accident ranged from the geometric and moderator characteristics of the source to the ...

No known detector or series of detectors in personnel neutron dosimeters have correct dose equivalent energy-dependence. Useful dosimeter performance is assumed by calibrating dosimeters for the exposure spectrum. This method implies that the exposure spectrum will be constant within a given facility or the wearer will not be ...

The 23rd nuclear accident dosimetry intercomparison was held during the week of June 12--16, 1995 at Los Alamos National Laboratory. This report presents the results of this event, referred to as NAD 23, as related to the performance of Sandia National La...

This paper describes a software package that manages dosimeter inventory and exposure data with a personal computer. The computer, connected with the access control system, deals with both records of the film badge (FB) supply to workers and the ordering of new FB for a company, processes exposure data and produces reports. The software not only ensures ...

The energy dependence of film blackening is discussed and shown graphically. The exposure range of films is discussed, and blackening is plotted vs exposure for DuPont No. 502, and for the less sensitive DuPont No. 351. A plan is then described for monitoring radiation exposure to workers by requiring the worker to carry an x-ray film of dental packet size in a badge designed ...

TLD's replaced film badges in the early 1970's for all dose equivalent monitoring, both neutron and photon, and for all locations at SLAC. The photon TLD's, composed of Li-7 loaded teflon discs, are calibrated using conventional gamma-ray sources; i.e., C...

The Nuclear Regulatory Commission (NRC) is considering an amendment to 10 CFR Part 20 that would require their licensees to use only processors of personnel dosimetry devies (e.g., film badges and thermoluminescent dosimeters) that have been certified. Al...

The research conducted during this phase I SBIR project involved a thorough evaluation of the use of dye indicator molecules to provide a colorimetric detection of gas phase HCl molecules. A wise range of acid-base indicators, incorporated into a variety ...

The Health Physics Instrument Manual provides apprentice health physics surveyors and other operating groups not directly concerned with radiation detection instruments a working knowledge of the radiation detection and measuring instruments in use at ORNL. The manual contains a ready reference to the radiation-monitoring instruments and their characteristics, calibration and operation ...

A simple and inexpensive Nuclear Accident Dosimetry (NAD) system for use in criticality accidents is described in this report. It consists of activation detectors of indium, gold, copper and sulfur for neutron dose estimates and thermoluminescent dosimeters (TLD) and radiophotoluminescent (RPL) dosimeters for gamma ...

Electron contamination from a sealed (60)Co radiation source has been investigated comprehensively using a CaSO(4):Dy based TLD badge and LiF crystals. It has been found that due to electron contamination, the thermoluminescence (TL) detectors exhibit over response which can be corrected by applying a magnetic field. It has also been found that for a ...

A five-element thermoluminescent dosimeter for beta particles, photons and neutrons has been developed using LiF blocks. One /sup 7/LiF block is shielded to provide interpretation of the 1 cm tissue depth dose. A second /sup 7/LiF block is unshielded to provide the derma dose interpretation. Two /sup 6/ LiF and one /sup 7/LiF blocks are used for fast and thermal ...

The correlation of x-ray beam quality at typical energies used for dental radiography with dosimeter response was studied. Landauer Luxel �? Optically Stimulated Luminescence (OSL) dosimeters were analyzed for the dose response with respect to the built-in variety of filters in each badge. Trends found in ...

This paper reports that this study involved performance testing of the Teledyne Isotopes calcium sulfate dysprosium (CaSO{sub 4}:Dy) environmental thermoluminescent dosimeter (TLD), and Model PB-2 badge case against specific portions of the American National Standards Institute N545-1975 (ANSI N545) standard for environmental TLD applications. ...

This report describes the results of an inspection performed on the existing stock of SNL Personal Nuclear Accident Dosimeters (PNADs). The current stock is approximately 20 years old, and has not been examined since their initial acceptance. A small random sample of PNADs were opened (a destructive process) and the contents visually examined. Sample ...

Hanford facilities that contain fissionable materials capable of achieving critical mass are monitored with nuclear accident dosimeters (NADS) in compliance with the requirements of DOE Order 5480.11, Chapter XI, Section 4.c. (DOE 1988). The US Department of Energy (DOE) Richland Field Office (RL) has assigned the responsibility for maintaining and ...

An evaluation is presented of the accuracy and sensitivity of three types of TLD's used during the accident at the Three Mile Island Nuclear Station. This evaluation indicated that, due to the method of calibration, all the dosimeters over-responded to 133Xe radiations. The response ranged from slightly above unity to almost two. Exposures of the TLD's ...

The variation of the radiation dose in different positions inside four small shallow-buried reinforced-concrete test structures are determined, and the accelerations inside two of these structures are compared with the accelerations in the adjacent free field. Film badges, chemical dosimeters, and energy- dependent film badges ...

In personnel monitoring, operational quantities recommended by ICRU Publication No. 39 for photon radiation can be realized by calibrating dosimeters on a phantom and considering body backscatter photons by using established conversion factors. Personnel dosimeters used in this study are based on CaSO4:Dy Teflon thermoluminescence ...

In order to gain an in-depth understanding of the neutron physics of a 6LiF TLD when used as an albedo neutron dosimeter, an analytical model was developed to simulate the response of a 6LiF chip. The analytical model was used to examine the sensitivity of the albedo TLD response to incident monoenergetic neutrons and to evaluate a multiple chip TLD neutron ...

Exposure measurements of global solar ultraviolet radiation (UV) with two types of dosimeters are compared in this evaluation: polysulphone badges with plastic film that changes its transmission after UV-exposure, and dosimeters which function by UV-induced DNA-damage to dried bacteria spores. The dosimeters agree ...

An evaluation of the Martin Marietta Energy Systems, Inc., Personnel Nuclear Accident Dosimeters was undertaken to determine if they could meet DOE 5480.11 requirements for photon dose assessment. Dosimeters were irradiated with a {sup 137}Cs source to doses ranging from 0.5 to 10,000 rad and processed using transmission filters to ...

At the Nuclear Fuel Cycle Engineering Laboratories of the Japan Atomic Energy Agency (JAEA), small pieces of indium foil incorporated into personal dosemeters have been used for personnel screening in criticality accidents. Irradiation tests of the badges were performed using the SILENE reactor to verify the calibration of the indium activation that had ...

A persornel dosimeter film badge made of plastic, with provision for a picture of the wearer and an internal slide containing photographic film that is sensitive to various radiations, is described. Four windows made of differing material selectively attenuate alpha, beta, gamma rays, and neutrons so as to distinguish the particular type of ...

An intercomparison of personnel monitoring dosimeters was conducted at Oak Ridge National Laboratory's DOSAR Facility. Ten independent laboratories and companies participated in an intercomparison of neutron and gamma-ray dosimeters used for routine personnel dosimetry. The dosimeters, which were sent through the ...

DOE installations possessing sufficient quantities of fissile material to potentially constitute a critical mass, such that the excessive exposure of personnel to radiation from a nuclear accident is possible, are required to provide nuclear accident dosimetry services. This document describes the personal nuclear accident ...

At 10:59 AM (PST), Saturday, April 7, 1962 a criticality accident occurred in a plutonium waste chemical recovery facility at the Hanford Atomic Products Operation, operated for the Atomic Energy Commission by the General Electric Company. Four men were hospitalized but were released after medical observation and after estimates of the radiation doses received were available. ...

In this study, the overall accuracy of normoxic polyacrylamide gel (nPAG) dosimeters is considered. Different badges of nPAG are fabricated, poured in containers of glass and Barex" and irradiated with a 6MV square photon beam. The polymer gel dosimeters were read out using MRI. The overall reproducibility and accuracy of nPAG gel ...

This project was conducted to measure the initial gamma dose as a function of distance for Shots Star Fish Prime, Blue Gill Triple Prime and King Fish. To accomplish these objectives, the gamma dose was measured by film badges, glass microdosimeters, cobalt-activated borosilicate glass, calcium fluoride thermoluminescent dosimeters, and formic acid ...

This thesis investigates the application of passive charcoal dosimeters to monitor concentrations of methylene chloride vapors. Monitoring the workplace air for methylene chloride vapors requires the collection of air samples in the worker's breathing zone during the work day. The work day exposure usually fluctuates and the air samples must be integrated over periods ...

Occupational radiation exposure was measured using three film badges and one ring thermoluminescent dosimeter. The radiation dose in the hospital but outside the operating room was measured as zero for the 12-month period. The measured trunk dose in the operating room was 5 mrem, and the measured dose to the head and neck region was 227 mrem. For selected ...

High energy accelerators quite often emit muons. These particles behave in matter as would heavy electrons and are thus difficult to attenuate with shielding in many situations. Hence, these muons can be a source of radiation exposure to personnel and suitable methods of measuring the absorbed dose received to these people is obviously required. In practical situations, such muon radiation fields ...

One of the most important aspects of a TLD dosimetry system is the dose algorithm used to convert the signals from the badge reader to an estimate of a worker`s dose. It is now more important then ever to have an accurate algorithm to estimate dose well below regulatory limits. Dosimetry systems for DOE laboratories must meet minimum performance standards based on DOELAP ...

The personnel neutron exposure potential at the Lawrence Livermore National Laboratory is more diverse than at many other facilities, due to the wide range of neutron producing activities. Albedo energy response problems in the face of the diversity of sources, and a concern about possible photon interferences with the neutron albedo response, have prompted development of some additional dosimetry ...

This manual describes the data storage and retrieval system designed by Environmental Monitoring Systems Laboratory Las Vegas (EMSL-LV) for radiation exposure data recorded in offsite areas during and after nuclear weapons tests conducted at the Nevada Test Site in the 1950's and early 1960's. Referred to hereinafter as the EMSL-LV system, this system contains two distinct ...

The External Dosimetry Badge System was developed to support the radiation protection program at Los Alamos National Laboratory. The radiation protection program is responsible for monitoring external radiation exposures to approximately 7,500 Laboratory employees, visitors and contractors each month. External radiation exposure is measured using thermoluminescent ...

A dosimetry intercomparison was held among the five agencies in Canada that are recognized by the Atomic Energy Control Board as competent to perform external dosimetry. Exposures of thermoluminescent dosimeter badges were made under operational conditions to radiation fields in Candu nuclear generating stations. Details of the method are described ...

A dosimetry intercomparison was held among the five agencies in Canada that are recognized by the Atomic Energy Control Board as competent to perform external dosimetry. Exposures of thermoluminescent dosimeter badges were made under operational conditions to radiation fields in Candu nuclear generating stations. Details of the method are described ...

Measurements of exposure rates using thermoluminescent dosimeters placed within residences in the Oak Ridge/Knoxville area are presented. The objective of this investigation was to determine the radiation component acquired by Oak Ridge National Laboratory employee personnel dosimeter-security badges during residential ...

Photochemical reactions induced by ionizing radiations can produce color centers in alkali halide crystals and fluorescent centers in silver-bearing phosphate glasses. These reactions are being investigated as a basis for casualty-badge radiation dosimeters. Potassium bromide and potassium chloride crystals were satisfactorily sensitized by heating in a ...

This document describes the Hanford External Dosimetry Program as it is administered by Pacific Northwest Laboratory (PNL) in support of the US Department of Energy (DOE) and its Hanford contractors. Program services include administrating the Hanford personnel dosimeter processing program and ensuring that the related dosimeter data accurately reflect ...

Thermoluminescence dosimeters are extensively used for quantitative dose measurements in various irradiation fields. They are also important for environmental monitoring after nuclear accident and weapon tests. In this work, the principles of TLD dosimeter and characteristics of several TLD materials are presented. Besides, taken into ...

Thermoluminescence dosimeters are extensively used for quantitative dose measurements in various irradiation fields. They are also important for environmental monitoring after nuclear accident and weapon tests. In this work, the principles of TLD dosimeter and characteristics of several TLD materials are presented. Besides, taken into ...

The purpose of this manual is to provide apprentice health physics surveyors and other operating groups not directly concerned with radiation detection instruments a working knowledge of the radiation detection and measuring instruments in use at the Laboratory. The characteristics and applications of the instruments are given. Portable instruments, stationary instruments, personnel monitoring ...

A specialized laser amplifier for use with velocity-measuring systems is described which makes possible detailed measurements of explosion-driven targets extending over long times. The experimental and diagnostic facilities of the Bunker 801 project enables sensitive and thorough hydrodynamics tests on the high-explosive components of nuclear devices. An improved spectrometry system has been ...

Fissionable materials are handled and processed at the Los Alamos National Laboratory. Although the probability of a nuclear criticality accident is very remote, it must be considered. Los Alamos maintains a broad spectrum of dose assessment capabilities....

In order to obtain information on radiation doses to the intestine, doses were determined in dogs for beta-emitters that might be delivered to critical cells in the bowel in the event of an accident. Thermoluminescent dosimeters were implanted beneath the...