MRI用開口型磁気シールドのシールド形状による遮蔽性能の検討

カテゴリ: 論文誌(論文単位)

グループ名: 【C】電子・情報・システム部門

発行日: 2020/07/01

タイトル(英語): Examination of the Shielding Performance of the Open-Type Magnetic Shield for MRI by Shielding Shape

著者名: 鎌田　清孝（鹿児島工業高等専門学校 電子制御工学科），岸田　一也（鹿児島工業高等専門学校 電子制御工学科），玉利　陽三（鹿児島工業高等専門学校 情報工学科），後藤　巧志（鹿児島工業高等専門学校 機械・電子システム工学専攻），徳田　拓海（鹿児島工業高等専門学校 機械・電子システム工学専攻），湯ノ口　万友（鹿児島大学）

著者名(英語): Kiyotaka Kamata (National Institute of Technology, Kagoshima College), Kazuya Kishida (National Institute of Technology, Kagoshima College), Yozo Tamari (National Institute of Technology, Kagoshima College), Koshi Goto (National Institute of Technology, Kagoshima College), Takumi Tokuda (National Institute of Technology, Kagoshima College), Kazutomo Yunokuchi (Kagoshima University)

キーワード: 開口型磁気シールド，三次元磁界解析，MRI，シールド形状　　open-type magnetically shielded room，3-D linear magnetic-field analysis，MRI，Shielding shape

要約(英語): MRI diagnoses various diseases by using a very strong magnetic field. In order to prevent electronic equipment malfunction caused by this magnetic field, the International Non-ionizing Radiation Protection Committee regulates access around the MRI laboratory, MSR (Magnetically Shielded Room) is used for shielding the magnetic field. Since the conventional MSR for MRI has a shape that the upper, lower, and side surface are hermetically sealed with shields, it gives closure to patients. Recently, open-type MSRs have been researched which have openings on the side, which can take in outside light and scenery into the MSR and can see the state of examination from the outside. However, open-type MSR has a problem that the volume increases from the shape of the shield at the opening. In this research, in order to propose an open type MSR with a volume equal to or close to that of the conventional model, we analyzed the shield cross sectional area and gap width as a parameter. Three-dimensional static magnetic field analysis using finite element method was used.

本誌: 電気学会論文誌C（電子・情報・システム部門誌） Vol.140 No.7 （2020） 特集：2019年電子・情報・システム部門大会

本誌掲載ページ: 705-710 p

原稿種別: 論文／日本語

電子版へのリンク: https://www.jstage.jst.go.jp/article/ieejeiss/140/7/140_705/_article/-char/ja/