| 摘要 |
PROBLEM TO BE SOLVED: To provide a reliable superconductive magnet device and a magnetic resonance imaging device, in which structure is simple, and a persistent current of a superconductive coil can be stably retained for the long term. SOLUTION: A superconductive magnet device 1 includes: a pair of coil containers 4 and 4 which accommodate a circularly-shaped superconductive coil 2 with a cooling medium; a pair of vacuum containers 1A and 1B which accommodate coil containers 4 and 4, respectively; a connecting tube 1C which supports the vacuum containers 1A and 1B, while opposing them to each other in the vertical direction, using a space between the vacuum containers 1A and 1B as a magnetic field space; a superconductive wire 2A which is connected between the superconductive coil 2 and 2 of a pair of the coil containers 1A and 1B through the connecting tube 1C; and a permanent current switch 7 which is connected to the superconductive wire 2A and passes permanent current to the superconductive coil 2. The permanent current switch 7 is arranged in the connecting tube 1C. COPYRIGHT: (C)2009,JPO&INPIT |
