3D Calculation Analysis of Activation and Shutdown Dose Rate for a PWR Nuclear Power Plant

Based on 3D Monte Carlo method,the rigorous 2-step（R2S） method has been used for the design analysis of a pressurized-water reactor（PWR） for the first time.The work preliminary validated the FISPACT-2007 application feasibility in a PWR.3D model of a minitype PWR was built.Residual radioactivity and shutdown dose rates were performed after the PWR operating 40 years using the R2S method.The results indicated that the R2S method can be used in the parts activation analysis and decommissioning strategy establishment of the PWR nuclear power plant.