Simplified magnetically shielded cylinder using flexible magnetic sheets for high-Tc superconducting quantum interference device magnetocardiogram systems

Daisuke Suzuki; Koichi Yokosawa; Tsuyoshi Miyashita; Akihiko Kandori; Keiji Tsukada; Akira Tsukamoto; Shunsuke Arakawa

Simplified magnetically shielded cylinder using flexible magnetic sheets for high-T_c superconducting quantum interference device magnetocardiogram systems

Daisuke Suzuki, Koichi Yokosawa, Tsuyoshi Miyashita, Akihiko Kandori, Keiji Tsukada, Akira Tsukamoto, Shunsuke Arakawa

Research output: Contribution to journal › Article › peer-review

Abstract

A small and simple magnetic-shielding cylinder using a new high-permeability sheet, developed for magnetic shielding, can reduce the amount of effort expended on taking magnetocardiogram (MCG) measurements. This sheet is made of a nanocrystalline soft-magnetic material (an Fe-Cu-Nb-Si-B alloy) and is flexible and easy to handle. Moreover, magnetostriction of the material is nearly zero, unlike that of the materials used in conventional magnetic shielding. The shielding cylinder is made up of three tubes of various diameters (but having the same length), placed one inside the other. The shielding cylinder is 1.0 m in diameter and 2.0 m long, and it has a shielding factor of about 35 dB at 1 Hz. The shielding cylinder was tested by measuring MCGs using a high-T_c superconducting quantum interference device (SQUID) gradiometer.

Original language	English
Pages (from-to)	L1026-L1028
Journal	Japanese Journal of Applied Physics, Part 2: Letters
Volume	40
Issue number	10 A
Publication status	Published - Oct 1 2001
Externally published	Yes

Keywords

MCG
Magnetic shield
Magnetocardiogram
SQUID
Superconductor

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy (miscellaneous)
Physics and Astronomy(all)

Cite this

Simplified magnetically shielded cylinder using flexible magnetic sheets for high-T_c superconducting quantum interference device magnetocardiogram systems. / Suzuki, Daisuke; Yokosawa, Koichi; Miyashita, Tsuyoshi et al.

In: Japanese Journal of Applied Physics, Part 2: Letters, Vol. 40, No. 10 A, 01.10.2001, p. L1026-L1028.

Research output: Contribution to journal › Article › peer-review

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abstract = "A small and simple magnetic-shielding cylinder using a new high-permeability sheet, developed for magnetic shielding, can reduce the amount of effort expended on taking magnetocardiogram (MCG) measurements. This sheet is made of a nanocrystalline soft-magnetic material (an Fe-Cu-Nb-Si-B alloy) and is flexible and easy to handle. Moreover, magnetostriction of the material is nearly zero, unlike that of the materials used in conventional magnetic shielding. The shielding cylinder is made up of three tubes of various diameters (but having the same length), placed one inside the other. The shielding cylinder is 1.0 m in diameter and 2.0 m long, and it has a shielding factor of about 35 dB at 1 Hz. The shielding cylinder was tested by measuring MCGs using a high-Tc superconducting quantum interference device (SQUID) gradiometer.",

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AU - Suzuki, Daisuke

AU - Yokosawa, Koichi

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AU - Kandori, Akihiko

AU - Tsukada, Keiji

AU - Tsukamoto, Akira

AU - Arakawa, Shunsuke

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N2 - A small and simple magnetic-shielding cylinder using a new high-permeability sheet, developed for magnetic shielding, can reduce the amount of effort expended on taking magnetocardiogram (MCG) measurements. This sheet is made of a nanocrystalline soft-magnetic material (an Fe-Cu-Nb-Si-B alloy) and is flexible and easy to handle. Moreover, magnetostriction of the material is nearly zero, unlike that of the materials used in conventional magnetic shielding. The shielding cylinder is made up of three tubes of various diameters (but having the same length), placed one inside the other. The shielding cylinder is 1.0 m in diameter and 2.0 m long, and it has a shielding factor of about 35 dB at 1 Hz. The shielding cylinder was tested by measuring MCGs using a high-Tc superconducting quantum interference device (SQUID) gradiometer.

AB - A small and simple magnetic-shielding cylinder using a new high-permeability sheet, developed for magnetic shielding, can reduce the amount of effort expended on taking magnetocardiogram (MCG) measurements. This sheet is made of a nanocrystalline soft-magnetic material (an Fe-Cu-Nb-Si-B alloy) and is flexible and easy to handle. Moreover, magnetostriction of the material is nearly zero, unlike that of the materials used in conventional magnetic shielding. The shielding cylinder is made up of three tubes of various diameters (but having the same length), placed one inside the other. The shielding cylinder is 1.0 m in diameter and 2.0 m long, and it has a shielding factor of about 35 dB at 1 Hz. The shielding cylinder was tested by measuring MCGs using a high-Tc superconducting quantum interference device (SQUID) gradiometer.

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Simplified magnetically shielded cylinder using flexible magnetic sheets for high-T_c superconducting quantum interference device magnetocardiogram systems

Abstract

Keywords

ASJC Scopus subject areas

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