Postclosure Safety Assessment of Radioactive Waste Disposal Systems: Current State of Understanding and International Consensus

by Daniel A. Galson, OECD Nuclear Energy Agency, France,
Jean-Pierre Olivier, OECD Nuclear Energy Agency, France,
Claes Thegerström, OECD Nuclear Energy Agency, France,

Document Type: Proceeding Paper

Part of: High Level Radioactive Waste Management 1990


Approximately ten years have passed since the first comprehensive safety assessments of radioactive waste disposal systems appeared. Through intensive efforts in practically all countries with nuclear energy programmes, as well as internationally, a wide consensus has emerged concerning the general procedures for developing scenarios and models, obtaining data, and performing and reviewing integrated assessments. Although refinements to methodologies are still being made, particularly in view of site-specific information, reliable safety assessment methodologies do exist to illustrate with sufficient accuracy the radiological impacts that a proposed radioactive waste disposal system would have on man and his environment, even in the very far future.

Subject Headings: Safety | Radioactive wastes | Waste disposal | Sensitivity analysis | Computer software | Nuclear power | System reliability | Radioactive materials

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