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Severe accident risks: an assessment for five U.S. nuclear power plants. Vol.3. Appendices D and E (NUREG-1150) (1991)

AuthorUS NRC
Date1991
Classification 6.01.3.70/63 (NUCLEAR SAFETY - RISK ANALYSES / RISK PERCEPTION)
Front

From the publication:

ABSTRACT

This report summarizes an assessment of the risks from severe accidents in five 
commercial nuclear power plants in the United States. These risks are measured in 
a number of ways, including: the estimated frequencies of core damage accidents 
from internally initiated accidents and externally initiated accidents for two of the 
plants; the performance of containment structures under severe accident loadings; 
the potential magnitude of radionuclide releases and offsite consequences of such 
accidents; and the overall risk (the product of accident frequencies and consequences). 
Supporting this summary report are a large number of reports written under contract 
to NRC that provide the detailed discussion of the methods used and results obtained 
in these risk studies.

This report was first published in February 1987 as a draft for public comment. 
Extensive peer review and public comment were received. As a result, both the 
underlying technical analyses and the report itself were substantially changed. A 
second version of the report was published in June 1989 as a draft for peer review. 
Two peer reviews of the second version were performed. One was sponsored by 
NRC; its results are published as the NRC report NUREG-1420. A second was 
sponsored by the American Nuclear Society (ANS); its report has also been 
completed and is available from the ANS. The comments by both groups were 
generally positive and recommended that a final version of the report be published 
as soon as practical and without performing any major reanalysis. With this direction, 
the NRC proceeded to generate this final version of the report.

Volume 3 of this report contains two appendices. Appendix D summarizes comments 
received, and staff responses, on the first (February 1987) draft of NUREG-1150. 
Appendix E provides a similar summary of comments and responses, but for the 
second (June 1989) version of the report.

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