tailieunhanh - Science underpinning the safety case of deep geological repositories challenges in the past and in the future and how to maintain knowledge and competence during operation

Final repositories for spent nuclear fuel are approaching implementation. A prerequisite for these advancements is that it has been shown that the repository can be constructed and operated in practice in such a way that safety can be assured both during operation and over very long time scales. | Science underpinning the safety case of deep geological repositories challenges in the past and in the future and how to maintain knowledge and competence during operation EPJ Nuclear Sci. Technol. 6 24 2020 Nuclear Sciences J. Andersson published by EDP Sciences 2020 amp Technologies https epjn 2019037 Available online at https REVIEW ARTICLE Science underpinning the safety case of deep geological repositories challenges in the past and in the future and how to maintain knowledge and competence during operation Johan Andersson Unit of Nuclear Fuel Repository Swedish Nuclear Fuel and Waste Management Co. SKB Box 3091 169 03 Solna Sweden Received 12 March 2019 Accepted 18 September 2019 Abstract. Final repositories for spent nuclear fuel are approaching implementation. A prerequisite for these advancements is that it has been shown that the repository can be constructed and operated in practice in such a way that safety can be assured both during operation and over very long time scales. The success rests on decades of structured and objective-driven research and development. A key element of the research strategy has been to ensure adequate in-house competence and expertise. Also openness and international cooperation are essential. Workable procedures for data qualification version control as well as internal and external peer review have gained importance. When the programmes now enter a new phase of construction and operation new challenges will arise. Even if the implementing organisations would need to keep a core competence on post closure safety assessment international cooperation will be even more important on developing sharing and managing the knowledge needed. 1 Introduction a KBS-3 repository at the Forsmark site. The matter now rests with the Government. Construction of the repository Final repositories for spent nuclear fuel are approaching may start around 2023 and operation may start early 2030 implementation. In 2011

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• Deep geological repositories
• Adequate in house competence
• Assessment international cooperation
• KBS 3 repository
• Swedish Radiation Safety Authority