In-Situ Repair Concepts for the ITER First Wall Components

The ITER General Design Requirements call for a design allowing the in-situ repair of protective armours and, if possible, the separate replacement of FW sub-components, in order to minimise intervention time and radioactive waste generation. The technologies necessary to implement this maintenance strategy and the relevant experimental results of the on going ITER R&D program specifically tailored for their development are discussed in this paper.