LWR spent fuel storage behaviour

KWU and DWK performed a joint program on LWR Spent Fuel Storage Behaviour covering all essential aspects of the fuel behaviour for wet and dry storage both for intact and fuel with operational defects. The program comprises theoretical work, laboratory experiments and performance tests with spent fuel. From the results we can conclude that wet storage is without any practical limitations in time. A suitable decay time in a pond - which may be less than 1 year - will assure also safe and reliable dry storage under inert conditions. (orig.)