Tokamak, fusion reactor device: Welding and joining for plasma facing components

Nuclear fusion might be an unlimited, everywhere available source of energy for electrical production. Among the various machines designed and prototyped to demonstrate electricity production from nuclear fusion the tokamak is certainly the most promising. Tokamaks are complex devices, consisting of various components, which in turn are composed of many parts. This contribution reports on the joining and welding techniques used and specifically developed for the elements of a tokamak, with a focus on plasma facing components as the divertor targets.