| 摘要 |
PROBLEM TO BE SOLVED: To reduce the bearing load of a heat shield of a magnetic resonance imaging apparatus (hereafter, an MRI apparatus). SOLUTION: The MRI apparatus is comprised of coil containers 21 and 22 which accommodate annular superconducting coils 11 and 12 to generate a static magnetic field together with refrigerants, the heat shields 31 and 32 which are disposed to surround the coil containers, vacuum containers 41 and 42 which are disposed to surround the heat shield and keep the insides vacuum, connection pipes 61 and 62 which support the vacuum containers to be vertically opposed to each other with a space and connect the vacuum containers to each other, and magnetic field adjustors 83 and 84 which are disposed in the upper and lower vacuum containers, wherein the bearing loads of the heat shields are reduced by directly supporting the magnetic adjustors on upper walls or lower walls of the individual vacuum containers through supporting members 81 and 82. COPYRIGHT: (C)2007,JPO&INPIT
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