Deterministic and Probabilistic Analysis Supporting the Safety Case for a Proposed Deep Geological Repository in Opalinus Clay in Northern Switzerland
The Swiss waste management concept foresees two types of deep geological repositories for the disposal of all radioactive wastes arising in Switzerland: a repository for low and intermediate-level waste and a repository for spent fuel (SF), vitrified high-level waste (HLW) and long-lived intermediate-level waste (ILW). In the course of the last 20 years several safety assessments have been conducted for these repository types and significant experience has been gained with safety analyses. Although in the past the main emphasis was on deterministic analyses, more recently capabilities to conduct probabilistic analyses have also been developed. In the most recent Safety Case [1,2] both deterministic and probabilistic analyses have been used in a complementary manner. It is the purpose of this paper to illustrate this complementary use of the two approaches in making the Safety Case.
KeywordsRadioactive Waste Probabilistic Analysis Spend Fuel Deterministic Analysis Deep Geological Repository
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