著者

山口 孝夫 岩田 英敏

出版者

大同特殊鋼株式会社

雑誌

電気製鋼 (ISSN:00118389)

巻号頁・発行日

vol.75, no.4, pp.297-303, 2004-10-15 (Released:2010-06-02)

参考文献数

9

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In recent years, SQUID (superconducting quantum interference device) technology has been developed for measuring the very low magnetic field generated from a human's physiology activity, and this technology is used for MEG (magnetencephalograph) and MCG (magnetcardiograph). In this way, the MEG and MCG have begun to be installed to the some hospitals as the medical devices. It is necessary to reduce the environmental magnetic field significantly, in order to measure the weak signals with high stability by using these devices. We developed and manufactured the magnetic shielding room for this purpose. In this paper, shielding performance of the magnetic shielding room at the low intensity and low frequency magnetic field is introduced.