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Probabilistic risk assessment of the N Reactor using NUREG-1150 methods

Conference · · Transactions of the American Nuclear Society; (USA)
OSTI ID:6434162

A level-III probabilistic risk assessment (PRA) has been performed for N Reactor, a US Department of Energy (DOE) reactor located on the Hanford site in Washington state. The methods developed for the US Nuclear Regulatory Commission (NRC) by Sandia National Laboratories (SNL) in support of the NUREG-1150 effort were adapted for the analysis. The objectives of the study are to assess the risks to the public (off-site) and to workers at colocated DOE facilities (on-site) posed by the operation of N reactor, compare those risks to proposed DOE safety guidelines and NRC safety goals, and identify changes to the plant for safety enhancement. This summary is based on results from internally initiated events only. Off-site risk resulted from externally initiated events and on-site risk will be reported at a later date. The entire study is based on best-estimate inputs except that a number of areas, such as source term inventory and progression of metal/water reaction, apply conservative assumptions.

OSTI ID:
6434162
Report Number(s):
CONF-891103--
Journal Information:
Transactions of the American Nuclear Society; (USA), Journal Name: Transactions of the American Nuclear Society; (USA) Vol. 60; ISSN TANSA; ISSN 0003-018X
Country of Publication:
United States
Language:
English

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