发明名称 |
Superconducting magnet apparatus and magnetic resonance imaging apparatus |
摘要 |
A superconducting magnet apparatus obtains high magnetic field uniformity without increasing the volume of a magnetic material even against disturbances. The superconducting magnet apparatus has a circular superconducting coil which generates a magnetic field; a coil vessel which contains the superconducting coil 11 together with refrigerant; a thermal shield arranged so as to surround the coil vessel; a vacuum vessel with inside kept vacuum which surrounds the thermal-shield; and magnetic materials and for correcting the magnetic field, the magnetic materials being arranged in the vacuum vessel; wherein the magnetic materials and are supported by a heat-insulation support medium fixed to the coil vessel.
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申请公布号 |
US7961067(B2) |
申请公布日期 |
2011.06.14 |
申请号 |
US20070780068 |
申请日期 |
2007.07.19 |
申请人 |
HITACHI, LTD.;HITACHI ENGINEERING & SERVICES CO., LTD. |
发明人 |
CHIBA TOMOO;WATANABE HIROYUKI;TAKAYAMA KUNIHIRO;KAWAMURA JUN;ABE MITSUSHI;NAKAYAMA TAKESHI;HAMADATE YOSHIO |
分类号 |
H01F1/00;G01V3/00;H01F6/00 |
主分类号 |
H01F1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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