标题：Analysis of stray field of actively shielded MRI magnet
作者：Liang, Zhenguang ;Wang, Zexiong ;Li, Peiyong
作者机构：[Liang, Zhenguang ;Wang, Zexiong ] School of Electrical Engineering, Shandong University, Jinan, China;[Li, Peiyong ] Weifang Xinli Superconducting Ma 更多
会议名称：5th IEEE International Symposium on Electromagnetic Compatibility, EMC-Beijing 2017
会议日期：October 28, 2017 - October 31, 2017
来源：IEEE International Symposium on Electromagnetic Compatibility
摘要：Stray field outside of magnetic resonance imaging (MRI) magnet must be confined to five gauss in a limited region. It's hard to high field MRI system. In the paper, calculation of magnetic field of MRI magnet is studied Approximate expression of stray field outside of MRI magnet is deduced Influence of shielding coil position on stray field is analyzed and an expression determining shielding coil position is given to cancel stray field of negative five orders.
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