This paper describes the central issues of the safety case concerned with assessment of pre and postclosure safety The NUMO Safety Case has been extended in key areas including assessing extreme geological events during longterm repository evolution widening discussion of both operational a ID: 796448
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The NUMO Safety Case has been developed to provide a basic structure for subsequent safety cases that could be applied to any selected site, emphasising the practical approaches and methodology, which will be applicable for the conditions/constraints during an actual siting process. This paper describes the central issues of the safety case concerned with assessment of pre- and post-closure safety.
The NUMO Safety Case has been extended in key areas, including assessing extreme geological events during long-term repository evolution, widening discussion of both operational and post-closure safety, scenario development based on a risk-informed approach, etc.
Assessment of pre- and post-closure safety in the NUMO safety case for a geological repository
S. Suzuki1, K. Fujisaki1, S. Kurosawa1, K. Yamashina1, A. Deguchi1, H. Umeki1 1Nuclear Waste Management Organization of Japan (NUMO), Tokyo, Japan E-mail contact of main author: ssuzuki@numo.or.jp