静磁場測定器
- 专利权人:
- 株式会社日立メディコ
- 发明人:
- 白川 洋
- 申请号：
- JP2009222445
- 公开号：
- JP5670037B2
- 申请日:
- 2009.09.28
- 申请国别(地区):
- JP
- 年份:
- 2015
- 代理人:
- 摘要：
PROBLEM TO BE SOLVED: To measure static magnetic field homogeneity widely in a space where a subject of a MRI apparatus is mounted at a low price.
SOLUTION: The apparatus includes a static magnetic field generating means for generating the static magnetic field in a space where a subject is mounted, a static magnetic field homogeneity adjusting means for adjusting the static magnetic field in the space uniformly, and a phantom generating MR signal, and an electromagnetic wave is radiated to the phantom and the RF probe receiving the MR signal from the phantom is fixed in the space. A plate having a fixing jig mounted on a plurality of positions where the RF probes are fixed is set, and the RF probe is mounted on the desired fixing jig of the plurality of fixing jigs while the static magnetic field homogeneity in the space is measured by the RF probe mounted on the desired fixing jig. A magnetic piece is mounted on a base plate opposite to the space, and the static magnetic field of the space is uniformly adjusted, based on the static magnetic field homogeneity obtained by the measurement.
COPYRIGHT: (C)2011,JPO&INPIT
- 来源网站：
- 中国工程科技知识中心
