Part 218—guidance for the De- Termination and Reporting of Nuclear Radiation Dose for Dod Participants in the Atmospheric Nuclear Test Program (1945–1962)
ثبت نشده
چکیده
(a) Upon request by the Veterans Administration in connection with a claim for compensation, or by a veteran or his or her representative, available information shall be provided by the applicable Military Service which shall include all material aspects of the radiation environment to which the veteran was exposed and shall include inhaled, ingested and neutron doses. In determining the veteran’s dose, initial neutron, initial gamma, residual gamma, and internal (inhaled and ingested) alpha, beta, and gamma shall be considered. However, doses will be reported as gamma dose, neutron dose, and internal dose. The minimum standards for reporting dose estimates are set forth in § 218.4. (b) The basic means by which to measure dose from exposure to ionizing radiation is the film badge. Of the estimated 220,000 Department of Defense participants in atmospheric nuclear weapons tests, about 145,000 have film badge dose data available. The information contained in the records has been reproduced in a standard format and is being provided to each military service, which can use the film badge dose data to obtain a radiation dose for a particular individual from that service. This is done upon request from the individual, the individual’s representative, the Veterans Administration, or others as authorized by the Privacy Act. Upon request, the participant or his or her authorized representative will be informed of the specific methodologies and assumptions employed in estimating his or her dose. The participant can use this information to obtain independent options regarding exposure. (c) From 1945 through 1954, the DoD and Atomic Energy Commission (AEC) policy was to issue badges only to a portion of the personnel in a homogeneous unit such as a platoon of a battalion combat team, Naval ship or aircraft crew. Either one person was badged in a group performing the same function, or only personnel expected to be exposed to radiation were badged. After 1954, the policy was to badge all personnel. But, some badges were unreadable and some records were lost or destroyed, as in the fire at the Federal Records Center in St. Louis. For these reasons the Nuclear Test Personnel Review (NTPR) Program has focused on determining the radiation dose for those personnel (about 75,000) who were not issued film badges or for whom film badge records are not available. (d) In order to determine the radiation dose to individuals for whom film badge data are not available, alternative approaches are used as circumstances warrant. All approaches require investigation of individual or group activities and their relationship to the radiological environment. First, if it is apparent that personnel were not present in the radiological environment and had no other potential for exposure, then their dose is zero. Second, if some members of a group had film badge readings and others did not—and if all members had a common relationship with the radiological enviroment—then doses for unbadged personnel can be calculated. Third, where sufficient badge readings or a common relationship to the radiological environment does not exist, dose reconstruction is performed. This
منابع مشابه
A three-year survey of film badge service performance in Iran
An extensive study was undertaken to Investigate on the overall film badge service performance with which occupational radiation, exposures are reported In Iran, The study involved the analysis of film badges exposed to x-and gamma rays and beta particles. For test exposures, x-rays between 60 and 140 KVPCo-60 gamma radiation and Sr-90 beta particles were used. The actual delivered dose equival...
متن کاملAssessment and evaluation of patient doses in adult common CT examinations towards establishing national diagnostic reference levels
Background: Patient radiation doses from computed tomography (CT) are increasing due to the number of CT examinations performed every day. The aim of this study was assess and evaluate patient radiation doses for adult’s common CT examinations to derive local diagnostic guidance levels for common CT examinations. Materials and Methods: Volume and weighted computed tomography dose index (C...
متن کاملStaff and patient absorbed doses due to diagnostic nuclear medicine procedures
Background: Annual patient effective dose equivalent can be considered as a quantitative physical parameter describing the activities performed in each nuclear medicine department. Annual staff dose equivalent could be also considered as a parameter describing the amount of radiation risk for performing the activities. We calculated the staff to patient dose equivalent ratio to be used as a phy...
متن کاملبررسی آثار رادیوبیولوژیکی و راهکارهای مراقبتهای پزشکی بعد از انفجار هسته ای
Introduction: Individual exposure after a nuclear detonation (atomic bomb) delivers abundant doses with high dose rates to the people who were located near the nuclear detonation location or within the fallout zone. Effects of the radiation to the humans and animal models will be studied and a fundamental ground work of medical services and managing systems for such accidents wo...
متن کاملAwareness of Radiological Accidents and How to Deal with It: A Study of Nurses and Nursing Faculties of Isfahan University of Medical Sciences
Introduction: Along with peaceful uses of ionizing radiation, its destructive applications have always threatened human life. One of the most important actions in calamities and disasters especially radiological and nuclear catastrophes is immediate assistance and medical care for victims. Therefore, knowing how to cope with nuclear and radiological disasters has become a part of modern care ed...
متن کامل