Determining the quality of probabilistic safety assessment (PSA) for applications in nuclear power plants

Probabilistic safety assessment (PSA) of nuclear power plants (NPPs) complements
the traditional deterministic

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Probabilistic safety assessment (PSA) of nuclear power plants (NPPs) complements
the traditional deterministic analysis and is widely recognized as a comprehensive, structured
approach to identifying accident scenarios and deriving numerical estimates of risks dealing
with NPP operation and associated plant vulnerabilities. Increasingly, during the last years,
PSA has been broadly applied to support numerous applications and risk-informed decisions
on various operational and regulatory matters. The expanded use of PSA in the risk-informed
decision making process requires that PSA possess certain features to ensure its technical
consistency and quality.
This publication is aimed to further promote the use and application of PSA
techniques in Member States. The publication provides a comprehensive list of PSA
applications and describes what technical features (termed ‘attributes’) of a PSA should be
satisfied to reliably support the PSA applications of interest. A consideration has been also
given to the basic set of attributes characterizing a ‘base case PSA’ that is performed with the
purpose of assessing the overall plant safety.
This publication can support PSA practitioners in appropriate planning of a PSA
project taking into account possible uses of the PSA in the future. The publication can be also
used by reviewers as an aid in assessing the quality of PSAs and judging the adequacy of a
PSA for particular applications. In addition, it is also foreseen to use the publication to
support the independent peer reviews conducted by the IAEA in the framework of the
International Probabilistic Safety Assessment Review Team (IPSART) safety service. "determining-quality-probabilistic-safety-assessment-psa-applications-nuclear-power-plants-iaea". "determining-quality-probabilistic-safety-assessment-psa-applications-nuclear-power-plants-iaea" Size: "1.06 MB"

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