Corrosion assessment of canister for the disposal of spent nuclear fuel in crystalline rock in Taiwan

Abstract

Taiwan is currently in the process of demonstrating the feasibility and capability of deep geological disposal of the country’s spent nuclear fuel. The current concept is based on the Swedish KBS-3 approach, suitably modified for Taiwanese conditions. A key component of the analysis is an assessment of the long-term corrosion behaviour of the copper canister. Here, the extent of corrosion due to the effects of radiation, the initially trapped oxygen, and sulphide is assessed and the canister lifetime predicted. This paper is part of a supplement on the 6th International Workshop on Long-Term Prediction of Corrosion Damage in Nuclear Waste Systems.