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Development of a policy for the use of PRA (Probabilistic Risk Assessment) in the deployment of advanced LWRs and for addressing severe accident considerations

R.R. Stiger, D.E. Leaver, Jacob Herrmann, E.A. Krantz, P.R. Davis, J.S. Fuoto, R.J. Mattson, R.L. Summitt

Abstract

In 1985, the US Department of Energy initiated the Advanced Reactor Severe Accident Program (ARSAP). An overall objective of ARSAP is to resolve severe accident issues as they apply to advanced light water reactor (ALWR) design certification. A portion of ARSAP involves evaluating the use of, and establishing methodology for, the application of Probabilistic Risk Assessment (PRA) to these designs. This paper discusses the results of an effort to identify appropriate applications of PRA to ALWRs including examples.

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Key concepts: Probabilistic risk assessment, Probabilistic logic, Certification, Risk assessment, Risk analysis (engineering), Light-water reactor, Accident (philosophy), Computer science