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Title: Tritium: An analysis of key environmental and dosimetric questions

Abstract

This document summarizes new theoretical and experimental data that may affect the assessment of environmental releases of tritium and analyzes the significance of this information in terms of the dose to man. Calculated doses resulting from tritium releases to the environment are linearly dependent upon the quality factor chosen for tritium beta radiation. A reevaluation of the tritium quality factor by the ICRP is needed; a value of 1.7 would seem to be more justifiable than the old 1.0 value. A new exposure model is proposed, based primarily upon the approach recommended by the National Council on Radiation Protection and Measurements. Employing a /open quotes/typical/close quotes/ LMFBR reprocessing facility source term, a /open quotes/base case/close quotes/ dose commitment to total body (for a maximally exposed individual) was calculated to be 4.0 /times/ 10/sup /minus/2/ mSv, with 3.2 /times/ 10/sup /minus// mSv of the dose due to intake of tritium. The study analyzes models which exist for evaluating the buildup of global releases of tritium from man-made sources. Scenarios for the release of man-made tritium to the environment and prediction of collective dose commitment to future generations suggest that the dose from nuclear weapons testing will be less than that frommore » nuclear energy even though the weapons source term is greater than that for any of our energy scenarios.« less

Authors:
; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Oak Ridge National Lab., TN (USA)
OSTI Identifier:
6682455
Alternate Identifier(s):
OSTI ID: 6682455; Legacy ID: DE88003141
Report Number(s):
ORNL/TM-6990
ON: DE88003141; TRN: 88-037536
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; 61 RADIATION PROTECTION AND DOSIMETRY; HUMAN POPULATIONS; RADIATION DOSES; NUCLEAR FACILITIES; TRITIUM; BIOLOGICAL EFFECTS; CALCULATION METHODS; DRINKING WATER; ENVIRONMENTAL TRANSPORT; FUEL REPROCESSING PLANTS; GLOBAL ASPECTS; HUMIDITY; LMFBR TYPE REACTORS; MATHEMATICAL MODELS; NUCLEAR EXPLOSIONS; NUCLEAR FUELS; TERNARY FISSION; UPTAKE; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BREEDER REACTORS; DOSES; ENERGY SOURCES; EPITHERMAL REACTORS; EXPLOSIONS; FAST REACTORS; FBR TYPE REACTORS; FISSION; FUELS; HYDROGEN COMPOUNDS; HYDROGEN ISOTOPES; ISOTOPES; LIGHT NUCLEI; LIQUID METAL COOLED REACTORS; MASS TRANSFER; MATERIALS; NUCLEAR REACTIONS; NUCLEI; ODD-EVEN NUCLEI; OXYGEN COMPOUNDS; POPULATIONS; RADIOISOTOPES; REACTOR MATERIALS; REACTORS; WATER; YEARS LIVING RADIOISOTOPES 520300* -- Environment, Aquatic-- Radioactive Materials Monitoring & Transport-- (1989); 655003 -- Medical Physics-- Dosimetry

Citation Formats

Till, J E, Meyer, H R, Etnier, E L, Bomar, E S, Gentry, R D, Killough, G G, Rohwer, P S, Tennery, V J, and Travis, C C. Tritium: An analysis of key environmental and dosimetric questions. United States: N. p., 1980. Web. doi:10.2172/6682455.
Till, J E, Meyer, H R, Etnier, E L, Bomar, E S, Gentry, R D, Killough, G G, Rohwer, P S, Tennery, V J, & Travis, C C. Tritium: An analysis of key environmental and dosimetric questions. United States. doi:10.2172/6682455.
Till, J E, Meyer, H R, Etnier, E L, Bomar, E S, Gentry, R D, Killough, G G, Rohwer, P S, Tennery, V J, and Travis, C C. Thu . "Tritium: An analysis of key environmental and dosimetric questions". United States. doi:10.2172/6682455. https://www.osti.gov/servlets/purl/6682455.
@article{osti_6682455,
title = {Tritium: An analysis of key environmental and dosimetric questions},
author = {Till, J E and Meyer, H R and Etnier, E L and Bomar, E S and Gentry, R D and Killough, G G and Rohwer, P S and Tennery, V J and Travis, C C},
abstractNote = {This document summarizes new theoretical and experimental data that may affect the assessment of environmental releases of tritium and analyzes the significance of this information in terms of the dose to man. Calculated doses resulting from tritium releases to the environment are linearly dependent upon the quality factor chosen for tritium beta radiation. A reevaluation of the tritium quality factor by the ICRP is needed; a value of 1.7 would seem to be more justifiable than the old 1.0 value. A new exposure model is proposed, based primarily upon the approach recommended by the National Council on Radiation Protection and Measurements. Employing a /open quotes/typical/close quotes/ LMFBR reprocessing facility source term, a /open quotes/base case/close quotes/ dose commitment to total body (for a maximally exposed individual) was calculated to be 4.0 /times/ 10/sup /minus/2/ mSv, with 3.2 /times/ 10/sup /minus// mSv of the dose due to intake of tritium. The study analyzes models which exist for evaluating the buildup of global releases of tritium from man-made sources. Scenarios for the release of man-made tritium to the environment and prediction of collective dose commitment to future generations suggest that the dose from nuclear weapons testing will be less than that from nuclear energy even though the weapons source term is greater than that for any of our energy scenarios.},
doi = {10.2172/6682455},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1980},
month = {5}
}