| 摘要 |
PROBLEM TO BE SOLVED: To prevent the generation of noise by controlling the vibration of a gradient coil and to improve the quality of images. SOLUTION: Dynamic dumpers to buffer the vibration of a gradient coil part in a gradient magnetic field device which forms a magnetic field in a reception room where a subject is placed and a static magnetic field is provided. The gradient coil part comprises an extended region extended projectedly from the reception space, and the dynamic dumpers are placed between the gradient coil and the static magnetic field and arranged at the extended region but at a location different from the reception space. Consequently, the vibration of the gradient coil can be controlled effectively. COPYRIGHT: (C)2007,JPO&INPIT
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