Probabilistic Safety Assessment

Probabilistic Safety Assessment (PSA) plays a vital role in the enhancement of nuclear safety. Particularly after the Three Mile Island, Chernobyl and Fukushima accidents, it is necessary to develop techniques that can predict and monitor the progression of severe accidents in Nuclear Power Plants (NPP). PSA is an effective and indispensable part of Nuclear Safety that is used within the assessment of reliability. PSA spans across a number of methods that include modeling of event-trees and simulation of accidents scenarios, aimed to quantify risk and ensure safety in NPP. PSA also deals with the prediction of future accidents and calculation of failure probabilities.

This Research Topic aims to cover modelling, simulation and safety analysis of nuclear energy systems. The topic will shelter three main levels of PSA including core damage frequency, radiation measurement and environmental protection in order to contribute to the advancement of nuclear power technology locally and internationally. 

Topics of interest for this Research Topic include:

• Diagnoses of severe accidents by using fault tree and event tree analysis

• Common cause failure analysis by using statistical distributions

• Qualitative and quantitative analysis of reactor safety systems. 

• Reliability parameters, estimation and risk calculations.

• Reactor safety system performance and availability in case of malfunction. 

• Use of Generic Pressurized Water Reactor Simulator to investigate LOCA, SBO, etc for APR-1400.

• Radiation protection and shielding by considering source term calculations.

• Radiation investigation in the water, food and environmental samples by using scintillation counter, alpha/beta counter and gamma spectroscopy.