Development of Methodology for Probabilistic Safety Assessment of Long Term Radioactive Waste Disposal

This paper discusses a methodology for probabilistic safety assessment for long-term radioactive waste disposal considering both the epistemic and aleatory uncertainties included in the safety assessment. This methodology can be used to demonstrate compliance with dose criteria and be helpful for the optimization of radiation protection in a waste disposal programme. In addition, the applicability of the probabilistic approach is demonstrated by illustrating a safety assessment for a radioactive waste disposal facility in Japan. (author)