Abstract：In this paper we present a detailed analysis of the SESAME software system, which is used to make a diagnosis and forecast of the quantity of radioactive substances released into the environment should an accident occur at a pressurised water reactor. In addition, some modifications are made to the physical models, formulas, functions as well as some constants used in SESAME, so as to establish a special system for source term evaluation at Qinshan Phase II NPP.
2006, Vol. 24 
