JPDR decommissioning program

As approved by the Japan Nuclear Safety Commission, the preparatory work for dismantling the Japan Power Demonstration Reactor of Japan Atomic Energy Research Institute has begun. As decided in the long term nuclear energy development and utilization program in June, 1982, by the Japan Atomic Energy Commission, the dismantling of the JPDR through its entire phase is the model case for the development of the dismantling technology and for the establishment of safety standard in the dismantling of shut-off nuclear power plants and their removal. The schedule of the JPDR dismantling is divided into two phases. In Phase 1, the development of dismantling techniques is made by the end of fiscal 1985, and in Phase 2, the full scale dismantling work is carried out by the end of fiscal 1989. The removal of the related facilities and the rearrangement of the evacuated land also are scheduled to be completed. During the first 10 days of April, 1983, the JPDR will be in the sealed up condition for the purpose of developing the dismantling techniques, and the nuclear fuel has been transferred to the spent fuel pool. The national policy on reactor decommissioning and the program for the technology development are reported. (Kako, I.)