Limitations of traditional tools for beyond design basis external hazard PRA
NUCLEAR ENGINEERING AND DESIGN, 370.
author keywords: Probabilistic risk assessment; Beyond design basis accidents; Common cause failure; Bayesian network; Event tree; Fault tree; Logic tree; PRA
TL;DR:
Two simple and a relatively more complex illustrative examples are used to show the limitation of these assumptions in the numerical quantification of risk for the case of BDB conditions and a Bayesian network based top-down algorithm is proposed as an alternative tool for accurate numerical quantifying of total risk in systems analysis.
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