| 摘要 |
PURPOSE:To elevate the performance by constituting an inner vessel and a shield plate out of high electric resistance metal, and attaching dummy coils consisting of superconductors integrally to the innermost layer and the outermost layer and the side of a superconductive coil, and besides, a close loop comprising these dummy coil and a superconductive switch. CONSTITUTION:In a superconductive coil device, which is composed of a superconductive coil 11, which is made by winding a superconductive line material, an inner vessel 10, which surrounds the superconductive coil 11, a shield plate 12, which prevents the radiant heat and the magnetic disturbance from outside, and outer container for storing each facility and maintaining vacuum, and others, the inner vessel 109 and the shield plate 12 are constituted of high-resistance metal. And, dummy coils 13 and 14 are attached to the innermost layer, the outermost layer and the sides of the coil 11 integrally, and the dummy coils 13 and 14 form a closed loop through a superconductive switch 15. Hereby, eddy currents are reduced, and also the heat conduction to the superconductive coil is prevented, whereby high performance and high reliability becomes possible. |
