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in subjects: "Critical Organs"  
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Radiation protection: an analysis of thyroid blocking. [Effectiveness of KI in reducing radioactive uptake following potential reactor accident]

Description: An analysis was performed to provide guidance to policymakers concerning the effectiveness of potassium iodide (KI) as a thyroid blocking agent in potential reactor accident situations, the distance to which (or area within which) it should be distributed, and its relative effectiveness compared to other available protective measures. The analysis was performed using the Reactor Safety Study (WASH-1400) consequence model. Four categories of accidents were addressed: gap activity release acciden… more
Date: January 1, 1980
Creator: Aldrich, D.C. & Blond, R.M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Experimental validation of Monte Carlo calculations for organ dose

Description: The problem of validating estimates of absorbed dose due to photon energy deposition is examined. The computational approaches used for the estimation of the photon energy deposition is examined. The limited data for validation of these approaches is discussed and suggestions made as to how better validation information might be obtained. (ACR)
Date: January 1, 1980
Creator: Yalcintas, M. G.; Eckerman, K. F. & Warner, G. G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Environmental monitoring at Argonne National Laboratory. Annual report for 1978

Description: The results of the environmental monitoring program at Argonne National Laboratory for 1978 are presented and discussed. To evaluate the effect of Argonne operations on the environment, measurements were made for a variety of radionuclides in air, surface water, Argonne effluent water, soil, grass, bottom sediment, and foodstuffs; for a variety of chemical constituents in air, surface water, and Argonne effluent water; and of the environmental penetrating radiation dose. Sample collections and … more
Date: March 1, 1979
Creator: Golchert, N W; Duffy, T L & Sedlet, J
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radiological hazards of alpha-contaminated waste

Description: The radiological hazards of alpha-contaminated wastes are discussed in this overview in terms of two components of hazard: radiobiological hazard, and radioecological hazard. Radiobiological hazard refers to human uptake of alpha-emitters by inhalation and ingestion, and the resultant dose to critical organs of the body. Radioecological hazard refers to the processes of release from buried wastes, transport in the environment, and translocation to man through the food chain. Besides detailing t… more
Date: January 1, 1982
Creator: Rodgers, J.C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Combined methodology for estimating dose rates and health effects from exposure to radioactive pollutants

Description: The work described in the report is basically a synthesis of two previously existing computer codes: INREM II, developed at the Oak Ridge National Laboratory (ORNL); and CAIRD, developed by the Environmental Protection Agency (EPA). The INREM II code uses contemporary dosimetric methods to estimate doses to specified reference organs due to inhalation or ingestion of a radionuclide. The CAIRD code employs actuarial life tables to account for competing risks in estimating numbers of health effec… more
Date: December 1, 1980
Creator: Dunning, D.E. Jr.; Leggett, R.W. & Yalcintas, M.G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Tolerance doses for treatment planning

Description: Data for the tolerance of normal tissues or organs to (low-LET) radiation has been compiled from a number of sources which are referenced at the end of this document. This tolerance dose data are ostensibly for uniform irradiation of all or part of an organ, and are for either 5% (TD/sub 5/) or 50% (TD/sub 50/) complication probability. The ''size'' of the irradiated organ is variously stated in terms of the absolute volume or the fraction of the organ volume irradiated, or the area or the leng… more
Date: October 1, 1985
Creator: Lyman, J.T.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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The present status of polonium tolerance estimation. Biology seminar, February 1, 1949

Description: Despite the fact the adequate data from long-term, chronic experiments on the effects of Po{sup 210} are not available, some sort of a working figure for the maximum permissible body content of polonium is desirable. As described herein, calculations involved in determining the permissible body content of polonium generally fall into three classes. 1. Comparison of X-ray and polonium toxicity and application of an acceptable X-ray tolerance figure. 2. Assumption of a most sensitive organ and co… more
Date: February 16, 1949
Creator: Hackett, P. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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CHORD simulation for insult assessment to the red bone marrow. [Photons, neutrons]

Description: Critical Human Organ Radiation Dosimetry (CHORD) probability density functions for A-P, P-A, bilateral, rotational, and isotropic incidence, plus simple depth-dose data, permit the rapid estimation of the radiation insult to the active red bone marrow system of the ICRP Reference Man. The CHORD concept follows the variations in the microscopic processes of absorption, attenuation, and scattering on a macroscopic level so that it is not necessary to attempt detailed calculations for each and eve… more
Date: September 1, 1976
Creator: Jones, T. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Radiation insult to the active bone marrow as predicted by a method of CHORDS. [Photons, neutrons]

Description: Critical Human Organ Radiation Dosimetry (CHORD) probability density functions for A-P, P-A, bilateral, rotational, and isotropic incidence, plus simple depth-dose data, permit the rapid estimation of the radiation insult to the active red bone marrow system of the ICRP Reference Man. The CHORD concept follows the variations in the microscopic processes of absorption, attenuation, and scattering on a macroscopic level so that it is not necessary to attempt detailed calculations for each and eve… more
Date: March 1, 1976
Creator: Jones, T. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Radiation tests of the EMU spacesuit for the International SpaceStation using energetic protons

Description: Measurements using silicon detectors to characterize theradiation transmitted through the EMU spacesuit and a human phantom havebeen performed using 155 and 250 MeV proton beams at the Loma LindaUniversity Medical Center (LLUMC). The beams simulate radiationencountered in space, where trapped protons having kinetic energies onthe order of 100 MeV are copious. Protons with 100 MeV kinetic energy andabove can penetrate many centimeters of water of other light materials,so that astronauts exposed … more
Date: June 4, 2001
Creator: Zeitlin, C.; Heilbronn, L.; Miller, J. & Shavers, M.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Relative hazard of the various radioactive materials

Description: An equation is given for the relative hazard, H, of various radionuclides under uniform working conditions. H is defined as the ratio of the average muC/cc inhaled in the working area to the maximum permissible concentration, MPC, of the radionuclide for occupational exposure. The variation of H is discussed in relation to such parameters as radioactive and biological half lives of the radionuclides, fractional retention, dilution factors, specific activity, energy, RBE, relative damage factor,… more
Date: January 1, 1963
Creator: Morgan, K.Z.; Synder, W.S. & Ford, M.R.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Internal dose conversion factors for calculation of dose to the public

Description: This publication contains 50-year committed dose equivalent factors, in tabular form. The document is intended to be used as the primary reference by the US Department of Energy (DOE) and its contractors for calculating radiation dose equivalents for members of the public, resulting from ingestion or inhalation of radioactive materials. Its application is intended specifically for such materials released to the environment during routine DOE operations, except in those instances where complianc… more
Date: July 1, 1988
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Measurement and instrumentation techniques for monitoring plutonium and uranium particulates released from nuclear facilities

Description: The purpose of this work has been an analysis and evaluation of the state-of-the-art of measurement and instrumentation techniques for monitoring plutonium and uranium particulates released from nuclear facilities. The occurrence of plutonium and uranium in the nuclear fuel cycle, the corresponding potential for releases, associated radiological protection standards and monitoring objectives are discussed. Techniques for monitoring via decay radiation from plutonium and uranium isotopes are pre… more
Date: August 1, 1976
Creator: Nero, A. V. Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Considerations in the assessment of the consequences of effluents from mixed oxide fuel fabrication plants

Description: The purpose of this study was to provide information and identify parameters relevant to assessing the consequences to man and his environment of large scale mixed plutonium-uranium oxide fuel fabrication plants which will be needed in the next 10 to 15 years. The report identifies the pertinent parameters, values, factors and methods which may be used in evaluating the environmental consequences of routine plant operation as well as postulated accidents. This study provides a base for the deve… more
Date: June 1, 1975
Creator: Selby, J.M.; Watson, E.C. & Corley, J.P.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Experimental Verification of Internal Dosimetry Calculations. Annual Progress Report

Description: During the past year a dosimetry research program has been established in the School of Nuclear Engineering at the Georgia Institute of Technology. The major objective of this program has been to provide research results upon which a useful internal dosimetry system could be based. The important application of this dosimetry system will be the experimental verification of internal dosimetry calculations such as those published by the MIRD Committee.
Date: May 1, 1980
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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