Preliminary concept for safeguarding spent fuel encapsulation plant in Olkiluoto, Finland. Phase III report on Task FIN A 1184 of the Finnish support program to IAEA Safeguards

The Encapsulation Plant, a part of the final disposal facility for spent fuel, will be located at Olkiluoto, at location close to the Nuclear Power Station. The company engaged in the final disposal in Finland has by now prepared a working report that describes the design of the Encapsulation Plant with the level of details that makes possible the development of a preliminary safeguards concept. The concept developed under this task is aimed atenabling the IAEA to implement a cost-effective safeguards approach for this new type of facility. Significant effort was invested by an informal team to understand the nature ofthe IAEA integrated safeguards and, particularly, the role of Additional Protocol measures in safeguarding the encapsulation process as part of the final disposal. A brief assessment was made regarding the technical feasibility of the proposed safeguards concept. Also consideration was given as to the further work required to for its application.