超電導磁石装置、およびこれを用いた磁気共鳴イメージング装置、並びに核磁気共鳴装置
- 专利权人:
- 株式会社日立製作所
- 发明人:
- 草加 浩都,阿部 充志,山本 勉
- 申请号：
- JP2008012558
- 公开号：
- JP4928477B2
- 申请日:
- 2008.01.23
- 申请国别(地区):
- JP
- 年份:
- 2012
- 代理人:
- 摘要：
PROBLEM TO BE SOLVED: To control the voltage generated in a leakage magnetic field and a coil at the time of rapid demagnetization within an allowable range and to miniaturize a superconductive magnet device.
SOLUTION: The superconductive magnet device comprises a plurality of pairs of coils which are annularly formed around a center axis Z passing through a magnetic field space and which are disposed to face each other in the direction of the center axis Z, and a plurality of pairs of good conductors. The plurality of pairs of coils comprise superconductive main coils 10A and 10B and a superconductive shield coil 20 disposed with a space on the outside in the radial direction of the superconductive main coils 10A and 10B as seen from the center axis Z. The plurality of pairs of good conductors include a first good conductor 11 and a second good conductor 21. The first good conductor 11 is disposed on the outer side in the radial direction of the superconductive main coil 10A, or between a pair of superconductive main coils 10A in such a state that at least part of the first good conductor overlaps on the superconductive main coil 10A as seen from the center axis Z. The second good conductor 21 is disposed on the inner side in the radial direction of the superconductive shield coil 20.
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- 来源网站：
- 中国工程科技知识中心
