Building the feeders, segment by segment
Coil termination boxes are the feeder segments located farthest from the machine core, outside of the bioshield. Cryostat feedthroughs pass through the concrete bioshield and cryostat and into the vacuum environment. And in-cryostat feeders connect directly to the superconducting coils.
Over five years (2019 to 2023) the Chinese Domestic Agency will deliver the fully instrumented segments and equipment required for 31 feeders—approximately 1,600 tonnes of material and 100 large components. The teams at ITER will install and assemble the feeders, and realize 300 magnet feeder joints (more on that tricky operation here).
The latest operations were carried out by the TAC1 assembly contractor CNPE under the careful supervision of Tingzhi Zhou, Chen-Yu Gung, and Giobatta Lanfranco from the In-Cryostat, Cryostat Thermal Shield, Auxiliaries Section. The first activity on feeder joints is planned for this summer after the completion of special process qualification by the contractor.