WASTE ANALYSIS GENERATED BY ALTERNATIVE REPROCESSING FUELS FROM PRESSURISED WATER REACTORS

摘要

The final disposal of the spent fuel implies an associated environmental impact. This depends on thc composition of the fuel and on the irradiation conditions. Previously, the insertion in PWR of fuels coming from alternative reprocessing techniques has been proposed and many studies have been developed to evaluate their neutronic viahility. This article tries to analyse the waste gener- ated by these fuels, when submitted to the same irradiation conditions. To reprocess the fuels, alternative techniques were used. Coprocessing and AIROX Multirecycles will be simulated and the effects of the insertion of Thorium in the composition of these reprocessed fuels will be studied. In comparison, the standard fuel used, UO_2, was also simulated. The goal of this study is to verify the radiological risk associated with the simulated fuels, relating the fuel inventory to its radiotoxicity.