Estimation radioactivity of reference spent fuel with time and total radioactivity of all spent fuel at 2035

According to Public Engagement Commission on Spent Nuclear Fuel Management (PECOS) recommendation report, present spent fuel pools of nuclear power plant in Korea will be saturated by the middle of 2020, constructions of independent spent fuel dry storage facilities are expecting. The roadmap was established based on this plan, and the roadmap includes that the Korea government will select the disposal site by 2028, complete the construction of interim storage facilities by 2035, and complete the construction of the permanent disposal facility by 2053. The object of this study was to estimate radioactivity of reference spent fuel with time and total radioactivity of all spent fuel at 2035. In this study radioactivity of reference spent fuel and total radioactivity of all spent fuel at 2035 was estimated using AMORES. Radioactivity of reference spent fuel decreased from 1.10 X 10¹⁷ Bq/MTU to 3.70 X 10¹⁵ Bq/MTU over time and radioactivity of all spent fuel at 2035 was 2.26 X 10¹⁶ Bq/MTU. The results of this study can be used as input for interim storage facility