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Prediction of concentration and model validation

Key issues for the consequence analysis of radioactive waste repositories

Published online by Cambridge University Press:  06 June 2009

J. Barescut,
S. Xu,
B. Dverstorp and
A. Wörman
S. Xu
Affiliation:
Swedish Radiation Protection Authority (SSI)
B. Dverstorp
Affiliation:
Swedish Radiation Protection Authority (SSI)
A. Wörman
Affiliation:
The Royal Institute of Technology (KTH), Stockholm
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Abstract

In this paper we examine some critical aspects concerning the justification of simplified radioecological models used in safety assessments for geological repositories. We propose a modelling approach for regulatory review of dose and risk calculations for a nuclear waste repository. The SSI modelling tools are applied to explore uncertainties in the size of the contaminant area due to leakage of radionuclides from a damaged nuclear waste canister. We demonstrate that an improved representation of geosphere transport processes will also enhance our understanding of radionuclide migration in the biosphere and provide a better basis for evaluating radiological consequences in the safety assessment.

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