Assessment of EUROFER97, tungsten and CuCrZr alloy transmutation effects under IFMIF-DONES and DEMO conditions

Abstract

IFMIF-DONES (International Fusion Materials Irradiation Facility – DEMO-Oriented Neutron Source) is a specialised neutron irradiation facility designed to generate critical materials data needed for the construction of the DEMO (DEMOnstration) fusion power plant. This study aims to analyse and characterise the transmutation behaviour of materials such as EUROFER97, tungsten, and CuCrZr alloy under the IFMIF-DONES irradiation conditions and comparing them with the typical DEMO radiation field. Nominal IFMIF-DONES beam conditions and different DEMO concepts have been used allowing a comparison of the DEMO and IFMIF-DONES environments. From the results obtained, it can be concluded that the transmutation damage in EUROFER97, obtained in IFMIF-DONES, reproduces to a large extent what will occur in DEMO. However, large discrepancies have been observed in the specific location studied for the W and the CuCrZr alloy.