Abstract:
The characteristics of initial events(IEs) for nuclear fuel cycle facilities were analyzed.According to the model of IEs and failure mechanism of IEs for hardware of nuclear fuel cycle facilities,the method for nuclear fuel cycle IEs quantification was developed.For IEs caused by complex factors,a fictitious model with the same process characteristics was analyzed as an example.The frequency of some IEs,such as static spark,pipe plugs leakage,leakage caused by corrosion,solvent detector failure,were calculated through PSA analysis software.