This activity has as purpose to arrive at the end of the design life with a safe operation. The SECs that are not in the pilot plan, they are includes because at the end of the design life they will be replaced, they are the pressure tubes, calandria tubes, feeders. Secondary side piping is not included also. For these components we must assume future degradation behaviour, for this reason an especial inspection and maintenance to be implemented to achieve the design life.

A. V.2.1.1. Pressure tubes

• Deuterium pick-up in the body of the pressure tubes: we carry out scrape sampling programme to provide deuterium data so that the station-specific deuterium ingress model can be updated. It will also be used to give indications of changes in the deuterium uptake rate.