| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a gradient magnetic field coil device, restricting generation of error magnetic field and eddy current, and improving image quality of a section image. Ž<P>SOLUTION: The gradient magnetic field coil device includes a first coil to produce linear magnetic field distribution in an imaging range of the nuclear magnetic resonance imaging device, and a second coil to restrict a leakage magnetic field to a static magnetic field coil device to produce uniform magnetic field distribution in the imaging range from the first coil. In the second coil yGSC, a transition line part 14 crossing a return line 13 from an spiral coil pattern meanders, or the width of the transition line part 14 crossing the return line 13 from the spiral coil pattern is equal to or more than four times and equal to or less than ten times the width of the return line 13. Otherwise, a section of a coil pattern crossing a feed line 11 to the spiral coil pattern and the return line 13 from the coil pattern goes bypassing. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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