| 摘要 |
PURPOSE:To enable execution of stable electrification by making it possible to reduce sharply the amount of invasion of heat into a first thermal source for cooling down the body of a superconducting apparatus and also to reduce invasion of heat into an intermediate cooling part at the time of nonelectrification and by preventing a sharp change of the internal pressure of a low-temperature vessel. CONSTITUTION:A body 4 of a superconducting apparatus is kept cooled by a first thermal source 3, an intermediate cooling part 7 is cooled by a second thermal source 8, a high-temperature superconductor 9 is provided between the body 4 of the superconducting apparatus and the intermediate cooling part 7, a part on the high-temperature side from the intermediate cooling part 7 is constructed of a metal member 10, and the high-temperature superconductor 9 and the metal member 10 are constructed removably. |
