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Outline of Performance Assessment Study on Geological Isolation System in Japan

by S. Masuda, Power Reactor and Nuclear Fuel, Development Corp, Japan,
H. Umeki, Power Reactor and Nuclear Fuel, Development Corp, Japan,
K. Ishiguro, Power Reactor and Nuclear Fuel, Development Corp, Japan,
A. Suzuki, Power Reactor and Nuclear Fuel, Development Corp, Japan,



Document Type: Proceeding Paper

Part of: High Level Radioactive Waste Management 1990

Abstract:

The goals of current R&D activities are to ensure the feasibility of geological isolation of HLW in Japan and then to establish the social acceptance. In order to attain these goals, the strategic plan for overall performance assessment has been introduced. The plan includes scenario development by systematic approach and consequence analysis in which the emphasis of developing simulation models are mainly placed on near-field phenomena. Recent developments in performance assessment have been briefly summarized. In the scenario analysis, influence diagram has been developed to identify dependencies between considered events. Consequence analysis was carried out by using existing codes and data-set in order to calculate potential radiological effects of geological isolation.

Subject Headings: Simulation models | Geology | Radioactive wastes | Mathematical models | Dynamic models | Waste disposal | Recycling | Japan | Asia

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