Advancements in the IFMIF-DONES target system for fusion materials irradiation

• Optimized design updates support practical manufacturability. • Enhanced material testing accuracy under fusion-relevant conditions. • Vacuum and nuclear safety standards integrated into the design. • Modular components support easier maintenance and system upgrades. • Validation strategy ensures operational reliability and compliance. This paper provides an overview of the advancements in the Target System design of the IFMIF-DONES Project which simulates the effects of the extreme neutron irradiation conditions expected in the future fusion power reactors. The system’s role in generating a high-intensity neutron source for testing candidate materials to be used in the reactor is highlighted. The discussion includes design innovations, recent developments, challenges, and future prospects, emphasizing critical aspects and validation needs for the Target System.