Abstract:
In this paper, based on the investigation results of domestic and foreign countries for core damage assessment methods, we proposed a suitable core damage assessment method for current nuclear power plants of operation and under-construction in China, namely CDAG and IAEA TECDOC-955 approach, and a detailed top design of the system. It is believed that this design will play a significant role for the final top design of the fast assessment system for nuclear accident emergency core damage.