发明名称 |
High-frequency coil for nuclear magnetic imaging |
摘要 |
A high-frequency coil of the type of slot resonator in which outer conductors that have wing portions at both ends thereof and that are divided, are formed on the cylindrical surface, and ring-like inner conductors are formed on the inside of the wing portions. The wing portions have a width different from the width of the inner conductors. The self resonance frequency of the coil is adjusted by adjusting the width which is smaller than the other width. Further, the neighboring tips of the wing portions are opposed to each other via an air gap. The self resonance frequency is also adjusted depending upon the position of the dielectric plate inserted in the gap.
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申请公布号 |
US4875013(A) |
申请公布日期 |
1989.10.17 |
申请号 |
US19880162982 |
申请日期 |
1988.03.02 |
申请人 |
HITACHI, LTD. |
发明人 |
MURAKAMI, YOSHIKI;YAMAMOTO, ETSUJI;YABUSAKI, MASAO;KOHNO, HIDEKI |
分类号 |
G01R33/343 |
主分类号 |
G01R33/343 |
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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