Non-Proliferation Assessment of the XT-ADS MYRRHA

In the framework of the MYRRHA International Review Team MIRT, an assessment based on multi-attribute value analysis was made of the proliferation risks of the MYRRHA ADS in comparison with the BR2 MTR. In this paper we evaluate not only the reactors, but also some of the associated nuclear fuel cycle facilities. The assessment concludes that MYRRHA is more vulnerable for State-supported diversion of nuclear material, while the BR2 is more vulnerable for diversion by non-State actors. Based on this assessment, guidelines can be developed to improve the safeguards approach of the MYRRHA ADS.