Following the current norms established by Rasmussen report WASH-1400, the use of which is becoming increasingly efficient and even necessary for evaluating and demonstrating nuclear site safety.
PSA/Serious Accidents Analysis
Probabilistic Safety Assessment (PSA) for nuclear reactors allows us to evaluate the probability of nuclear core meltdown (PSA level 1) and its environmental and human impacts (PSA level 2).
The serious accidents model allows us to predict all potential accident scenarios, using tools such as Risk Spectrum, KB3, BDMP, MAAP…
References
Probabilistic Safety Assessment of accidents, AQS memos, model N4 VD1-REX
Probabilistic Safety Assessment, spent fuel pools and stress test after the Fukushima Daiichi nuclear disaster
Serious accidents analysis, 900 MWe, N4 and newer models.