Speaker
Description
The mission of the IFMIF-DONES facility is to provide irradiation data for the construction of a DEMO fusion power plant. It is a deuterium-lithium (d+Li) neutron source driven by a deuteron accelerator (40 MeV and 125 mA) striking at the liquid Li target and producing neutrons through stripping reactions. The neutrons provide high damage doses on material samples located in the High Flux Test Module (HFTM) - the only test module with material irradiation capabilities. It aims to provide material irradiation data up to 20 DPA (displacement per atom, Norgett, Robinson and Torrens model) for the DEMO starter blankets within two years, and >50 DPA for the second phase blanket with additional irradiation.
This work presents the irradiation performance of HFTM in terms of neutron fluence, damage doses, gas productions and more. The irradiation volume of the HFTM for the required damage dose rate has been evaluated under different beam footprint dimensions. The enhancement of the irradiation performance by beam profile optimization is achieved through a multi-parameters iterative process. In addition, the potential use of the IFMIF-DONES target back-plate as material samples will be presented. With these results and discussions, the material irradiation performance of the IFMIF-DONES test system will be summarized.
