平面型自己シールド傾斜磁界コイルの設計

竹内 敏惠, 依田 潔

doi:10.1541/ieejfms1990.118.3_287

平面型自己シールド傾斜磁界コイルの設計

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竹内敏惠

三菱電機
依田潔

三菱電機

書誌事項

タイトル別名

Design of Planar Self-shielded Gradient Coils
ヘイメンガタジコシールドケイシャジカイコイルノセッケイ

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抄録

Planar self-shielded gradient coils have been designed using a Hankel-Bessel expansion of magnetic fields and the minimum inductance formulation. We found that linear gradient fields in high accuracy can be obtained by positioning field-setting-points on the imaging spherical surface. The obtained gradient field linearity of the shielded gradient coils is within 2% at the imaging spherical region and the residual external fields are less than 1% of the fields generated by non-shielded coils.