| 摘要 |
PROBLEM TO BE SOLVED: To provide a superconducting magnet, a leakage-checking method, and a leakage-repairing method, where a leakage check can be carried out easily, and leaking place can be repaired easily and quickly. SOLUTION: A superconducting magnet is equipped with low-temperature pipes, which cool down a shield member that surrounds a superconducting coil in a vacuum vessel. The magnet device is equipped with an upper and a lower pipe open-close mean which open or close the upper and lower side of the feed main pipe and branch pipes of the lower-temperature pipe, a feed connector provided to the low-temperature pipe, so as to enable an outer feed pipe to be connected freely detachably from outside the vacuum vessel, and a discharge connector provided to the low-temperature pipe to enable an outer discharge pipe to be connected in a freely detachable manner from outside the vacuum vessel. |
