Poloidal coil arrangement for a nuclear fusion apparatus

摘要

A poloidal coil arrangement for a nuclear fushion apparatus comprises at least two poloidal coil sections each including a plurality of conductor turns, and a plurality of bridging joining members for electrically and metallurgically joining the turn ends of the conductor turns to form a plurality of complete turns. The joining members have end surfaces shaped such that the joining members can be supported by the end surfaces of the conductor turns. The length in the circumferential direction of the top side of each joining member is nearly equal to or shorter than the length in the circumferential direction of the opposing lower side of the upper joining member located above that joining member.