磁気共鳴イメージング装置用アクティブシールド型傾斜磁場コイル
- 专利权人:
- 株式会社日立メディコ
- 发明人:
- 黒目 明,八尾 武,阿部 充志,和田山 芳英
- 申请号：
- JP2006275023
- 公开号：
- JP5028062B2
- 申请日:
- 2006.10.06
- 申请国别(地区):
- JP
- 年份:
- 2012
- 代理人:
- 摘要：
PROBLEM TO BE SOLVED: To provide an active shield type gradient magnetic field coil for a magnetic resonance imaging apparatus preventing the crossover and interference of connection sections for connecting X and Y gradient magnetic field coils to parts of conductors of the respective shield coils.
SOLUTION: The position of a farthest connection conductor terminal Pn viewed from the Y axis out of a plurality of connection conductor terminals P
1 -Pn provided in the respective outer circumferential parts of an X-axis main gradient magnetic field coil and a shield coil and connecting the X-axis main gradient magnetic field coil and a part of a pattern conductor of the X-axis shield coil to each other is provided in a position not exceeding 45°-&gamma/2 measured from the Y axis (&gamma is an angle equivalent to a circumferential insulation distance of the X-axis and Y-axis gradient magnetic field coils), and the position of a farthest connection conductor terminal Pn viewed from the X axis out of a plurality of connection conductor terminals P1 -Pn provided in the respective outer circumferential parts of a Y-axis main gradient magnetic field coil and a shield coil and connecting the Y-axis main gradient magnetic field coil and a part of a pattern conductor of the shield coil to each other is provided in a position not exceeding 45°-&gamma/2 measured from the X axis.COPYRIGHT: (C)2008,JPO&INPIT
- 来源网站：
- 中国工程科技知识中心
