发明名称 |
MAGNETIC-RESONANCE APPARATUS HAVING A GRADIENT COIL AND AN ELECTRICALLY CONDUCTIVE STRUCTURE |
摘要 |
Instrument has a gradient coil (21) for producing a gradient field that partially surrounds an electrically conducting structure. When the current is changed in the gradient coil an eddy current field is generated in the conducting body with the eddy current field acting to at least partially compensate a non-linear part of the gradient field in the imaging volume. Additionally a compensation coil (25) is arranged between the gradient coil and the conducting body and connected in series with the gradient coil. It generates a magnetic field that does not have a linear component and acts solely to compensate the non-linear gradient field components. |
申请公布号 |
GB2400180(B) |
申请公布日期 |
2006.02.15 |
申请号 |
GB20040002107 |
申请日期 |
2004.01.30 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT;SIEMENS AKTIENGESELLSCHAFT |
发明人 |
OLIVER HEID |
分类号 |
G01R33/385;G01R33/421 |
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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