Long Term Modelling of Spent Fuel Oxidation/Dissolution Under Repository Conditions (original) (raw)

2001

Abstract

<jats:title>Abstract</jats:title> <jats:p>A model to study the stability of the spent fuel under repository conditions has been developed. The fuel-water interface is a dynamic redox system, where oxidising conditions due to the radiolysis of water can lead to the release of the uranium and the radionuclides embedded in the fuel matrix. Both kinetic and thermodynamic processes have been taken into account. Special attention is given to the unit rate of matrix oxidation/dissolution, which has been the subject of a specific radiolytic model. The findings of this work have important implications for the applicability of solubility limits in establishing source term models.</jats:p>

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