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Work package 1: Treatment of gas in performance assessment

For more information, please contact Simon Norris, (WP1) leader.

  • Describe the current treatment of gas issues in long-term safety assessments for waste and spent nuclear fuel.
  • Identify the merits and shortcomings of the current treatment of gas issues in long-term safety assessments.
  • Analyse the limitation of previous studies and the different types of uncertainties related to gas transport in the host rock and engineered barriers.
  • Discuss the needs for additional studies of gas migration issues and how they can support future assessments.
  • Integrate the information produced by the other WPs throughout the duration of the project, considering the implications for the current state-of-the-art.
  • Examine the extent to which other WPs' findings provide satisfactory answers to the needs identified at the outset of the project.
  • Define 'scenarios' related to gas issues. Discuss the uncertainties related to the scenarios. Identify the need of models and data for the treatment.
  • Make recommendations for, and propose an updated treatment of, gas issues in relation to long-term safety assessments, based on the integrated findings from the project. This will consider, for example, issues to be dealt in a safety case and future needs, and a set of recommendations related to the design of the repository in relation to gas issues.
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