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Gradient Coil Design in Permanent Magnet MRI

机译:永磁MRI中的梯度线圈设计

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摘要

Based on target field method, the article designs gradient coils for a permanent MRI magnet model. By simulating, winding and testing, the result verifies the validity and feasibility of target field method used in gradient coils design of permanent magnet MRI; moreover, shielded coils can restrain eddy current and can be designed based on target field method easily. The simulated results show that the effect of restraining eddy current is notable. So, the permanent magnetic MRI gradient coil can be designed by target field method. Gradient coils generate the linearly gradient field; and shielded coils restrain the eddy current.
机译:基于目标场方法,本文设计了用于永久MRI磁体模型的梯度线圈。通过仿真,绕线和测试,验证了目标场法在永磁体MRI梯度线圈设计中的有效性和可行性。此外,屏蔽线圈可以抑制涡流,并且可以轻松地基于目标场法进行设计。仿真结果表明,涡流抑制效果显着。因此,可以通过目标场方法设计永磁MRI梯度线圈。梯度线圈产生线性梯度场。屏蔽线圈抑制了涡流。

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