发明名称 |
GRADIENT COIL DEVICE AND MAGNETIC RESONANCE IMAGING DEVICE |
摘要 |
A gradient coil device includes a major axis gradient coil, having an ellipse in a cross section generating a gradient magnetic field inclined in a major axis direction of the ellipse at a magnetic field space; and a minor axis gradient coil, having an ellipse in a cross section generating a gradient magnetic field inclined in a minor axis direction of the ellipse at the magnetic field space. A length of the minor axis field coil in the center axis direction is shorter than a length of the major axis gradient coil in the center axis direction. A maximum value of a residual magnetic field generated by the minor axis gradient coil at a space outside the magnetic field space is equal to or smaller than a maximum value of a residual magnetic field generated by the major axis gradient coil at a space outside the magnetic field space. |
申请公布号 |
US2013335088(A1) |
申请公布日期 |
2013.12.19 |
申请号 |
US201213979542 |
申请日期 |
2012.01.13 |
申请人 |
TERADA MASANAO;ABE MITSUSHI;IMAMURA YUKINOBU;TAKEUCHI HIROYUKI;KUROME AKIRA;HITACHI MEDICAL CORPORATION |
发明人 |
TERADA MASANAO;ABE MITSUSHI;IMAMURA YUKINOBU;TAKEUCHI HIROYUKI;KUROME AKIRA |
分类号 |
G01R33/385 |
主分类号 |
G01R33/385 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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