Reaktor Fusi
The ITER Divertor
The Divertor is one of the key components of the ITER machine. Situated along the bottom of the Vacuum Vessel, its function is to extract heat and Helium ash — both products of the fusion reaction — and other impurities from the plasma, in effect acting like a giant exhaust system. It will comprise two main parts: a supporting structure made primarily from stainless steel, and the plasma-facing components, weighing about 700 tons. The plasma-facing components will be made of Tungsten, a high-refractory material. |
The three plasma-facing components of the ITER Divertor: the inner and the outer vertical targets, and the dome.
ITER will begin operations with a Carbon fibre-reinforced Carbon composite (CFC) Divertor target. This material presents the advantage of high thermal conductivity and it enables an easier learning process for the first years of ITER operation. A second Divertor set will be made of Tungsten which has the advantage of a lower rate of erosion and thus a longer lifetime.
