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Proceedings of the Eighth International Conference on Probabilistic Safety Assessment & Management (PSAM)

Editor
Michael G. Stamatelatos
Michael G. Stamatelatos
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Harold S. Blackman
Harold S. Blackman
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ISBN-10:
0791802442
No. of Pages:
2576
Publisher:
ASME Press
Publication date:
2006

SAPHIRE is a fault tree and event tree analysis code the development of which, has been (and continues to be) sponsored by the U. S. Nuclear Regulatory Commission since the mid-1980's. The acronym SAPHIRE stands for “Systems Analysis Programs for Hands-on Integrated Reliability Evaluations,” and it was originally released as IRRAS (Integrated Reliability and Risk Analysis System) Version 1.0 in 1987. Since that time, the code has evolved significantly to the currently available SAPHIRE Version 7.26 (as of January 2006). The capabilities in SAPHIRE have been expanded to accommodate the advances in the state-of-the-art of probabilistic risk assessment (PRA), including the capability to do complex common cause failure modeling, automated (rule based) partitioning (binning) of event tree sequences and cutsets, and external event modeling (including seismic analyses). Improvements to SAPHIRE (to be released as version 8) are currently being funded by the U.S. NRC, NASA, and DOE, and include a total re-working of the user interface and the capability to perform dynamic simulations.

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