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Assessment of the radiological impact of the Windscale reactor fire, October 1957. Addendum to report NRPB R135

Abstract

The assessment described has involved a review of previously unpublished data, in order to establish the quantities of nuclides released from materials undergoing irradiation in the pile at the time of the fire. Of these additional nuclides, only polonium-210 has been shown to make a significant contribution to the estimate of the collective effective dose equivalent to the population from the Windscale fire. The previous estimate of 1.2 x 10/sup 3/ man Sv for the collective effective dose equivalent commitment to the population of the UK and Northern Europe has been increased by 67% to 2.0 x 10/sup 3/ man Sv. This change is within the range of uncertainty of the original estimate. The influence of the addition on the theoretical estimate of the upper limit of possible health effects is discussed in this addendum and its foreword. With the inclusion of the additional nuclides, the inhalation pathway has become the overall largest contributor to this population dose, followed by the milk ingestion pathway; the largest nuclide contribution comes from iodine-131, followed by polonium-210. Some perspective may be provided on the contribution due to polonium-210 by noting that it is approximately one-tenth of that arising annually due to naturally occurring  More>>
Publication Date:
Jan 01, 1983
Product Type:
Book
Report Number:
NRPB-R-135(Add.)
Reference Number:
AIX-15-013431; EDB-84-147519
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; 21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; 63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; 54 ENVIRONMENTAL SCIENCES; HUMAN POPULATIONS; RADIATION DOSES; WINDSCALE PRODUCTION REACTORS; ACCIDENTS; DOSE EQUIVALENTS; ENVIRONMENTAL EXPOSURE PATHWAY; FIRES; IODINE 131; MILK; POLONIUM 210; POPULATIONS; RADIATION HAZARDS; UNITED KINGDOM; AIR COOLED REACTORS; ALPHA DECAY RADIOISOTOPES; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; BIOLOGICAL MATERIALS; BODY FLUIDS; DAYS LIVING RADIOISOTOPES; DOSES; EUROPE; EVEN-EVEN NUCLEI; FOOD; GAS COOLED REACTORS; GRAPHITE MODERATED REACTORS; HAZARDS; HEALTH HAZARDS; HEAVY NUCLEI; INTERMEDIATE MASS NUCLEI; IODINE ISOTOPES; ISOTOPES; MATERIALS; NATURAL URANIUM REACTORS; NUCLEI; ODD-EVEN NUCLEI; PLUTONIUM PRODUCTION REACTORS; POLONIUM ISOTOPES; PRODUCTION REACTORS; RADIOISOTOPES; REACTORS; THERMAL REACTORS; WESTERN EUROPE; 220502* - Nuclear Reactor Technology- Environmental Aspects- Radioactive Effluents; 220700 - Nuclear Reactor Technology- Plutonium & Isotope Production Reactors; 560171 - Radiation Effects- Nuclide Kinetics & Toxicology- Man- (-1987); 560151 - Radiation Effects on Animals- Man; 520302 - Environment, Aquatic- Radioactive Materials Monitoring & Transport- Aquatic Ecosystems & Food Chains- (-1987)
OSTI ID:
6623095
Country of Origin:
United Kingdom
Language:
English
Availability:
HMSO, London, price Pound 3.00.
Submitting Site:
INIS
Size:
Pages: 35
Announcement Date:
May 13, 2001

Citation Formats

Crick, M J, and Linsley, G S. Assessment of the radiological impact of the Windscale reactor fire, October 1957. Addendum to report NRPB R135. United Kingdom: N. p., 1983. Web.
Crick, M J, & Linsley, G S. Assessment of the radiological impact of the Windscale reactor fire, October 1957. Addendum to report NRPB R135. United Kingdom.
Crick, M J, and Linsley, G S. 1983. "Assessment of the radiological impact of the Windscale reactor fire, October 1957. Addendum to report NRPB R135." United Kingdom.
@misc{etde_6623095,
title = {Assessment of the radiological impact of the Windscale reactor fire, October 1957. Addendum to report NRPB R135}
author = {Crick, M J, and Linsley, G S}
abstractNote = {The assessment described has involved a review of previously unpublished data, in order to establish the quantities of nuclides released from materials undergoing irradiation in the pile at the time of the fire. Of these additional nuclides, only polonium-210 has been shown to make a significant contribution to the estimate of the collective effective dose equivalent to the population from the Windscale fire. The previous estimate of 1.2 x 10/sup 3/ man Sv for the collective effective dose equivalent commitment to the population of the UK and Northern Europe has been increased by 67% to 2.0 x 10/sup 3/ man Sv. This change is within the range of uncertainty of the original estimate. The influence of the addition on the theoretical estimate of the upper limit of possible health effects is discussed in this addendum and its foreword. With the inclusion of the additional nuclides, the inhalation pathway has become the overall largest contributor to this population dose, followed by the milk ingestion pathway; the largest nuclide contribution comes from iodine-131, followed by polonium-210. Some perspective may be provided on the contribution due to polonium-210 by noting that it is approximately one-tenth of that arising annually due to naturally occurring polonium-210, and less than one-hundredth of that due annually to the total natural background radiation.}
place = {United Kingdom}
year = {1983}
month = {Jan}
}