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A Stochastic‐Analytical Framework for Safety Assessment of Waste Repositories: 1. Theory
Author(s) -
Selroos JanOlof
Publication year - 1997
Publication title -
groundwater
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.84
H-Index - 94
eISSN - 1745-6584
pISSN - 0017-467X
DOI - 10.1111/j.1745-6584.1997.tb00107.x
Subject(s) - context (archaeology) , biosphere , radioactive waste , computer science , simple (philosophy) , environmental science , engineering , physics , waste management , geology , paleontology , astronomy , philosophy , epistemology
A model framework for safety assessment of waste repositories is derived on the basis of stochastic‐analytical solution techniques. The approach is computationally simple but maintains a relatively detailed description of processes and uncertainty. The framework consists of separate subunits for the engineered system, the geo sphere, and impact evaluation in the biosphere. The impact in the biosphere is probabilistically assessed using the derived first two statistical moments of the mass flux or cumulative mass flux out from the geo sphere. Various regulatory criteria related to the mass fluxes or contaminant travel times may be used for the impact assessment. The subunits of the framework are presented in the context of a repository for high‐level nuclear waste.