A High-Level Waste Repository Performance Assessment Methodologyby Robert A. Shaw, Electric Power Research Inst, Palo Alto, United States,
J. Carl Stepp, Electric Power Research Inst, Palo Alto, United States,
Robert F. Williams, Electric Power Research Inst, Palo Alto, United States,
Robin McGuire, Electric Power Research Inst, Palo Alto, United States,
Abstract: This project was sponsored by the Electric Power Research Institute to examine methods that coordinate information from various disciplines to present an integrated perspective on the potential performance of nuclear waste repository sites. For this project, assessment of a repository site's performance accounts for an understanding that spent fuel or other radioactive waste in a canister is placed in a geologic repository where, through various chemical and mechanical processes, the waste may come in contact with the host medium. The assessment of a site's performance accounts for all such scenarios, evaluating the amounts of radioactivity that might be released, the probabilities of release, and uncertainties caused by uncertainties in natural phenomena, in physical characteristics, and in engineering processes. A key aspect of the methods used in this project is that they incorporate information on uncertainties in models, parameters, and interpretations.
Subject Headings: Radioactive wastes | Waste sites | Nuclear power | Chemical wastes | Uncertainty principles | Electric power | Information management | Site investigation
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