A superconducting quantum interference device magnetometer with a room-temperature pickup coil for measuring impedance magnetocardiograms

Akihiko Kandori; Daisuke Suzuki; Koichi Yokosawa; Akira Tsukamoto; Tsuyoshi Miyashita; Keiji Tsukada; Kazumasa Takagi

doi:10.1143/jjap.41.596

A superconducting quantum interference device magnetometer with a room-temperature pickup coil for measuring impedance magnetocardiograms

Akihiko Kandori, Daisuke Suzuki, Koichi Yokosawa, Akira Tsukamoto, Tsuyoshi Miyashita, Keiji Tsukada, Kazumasa Takagi

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

21 Citations (Scopus)

Abstract

To measure an impedance magnetocardiogram (I-MCG) signal, we have developed a superconducting quantum interference device (SQUID) magnetometer with a room-temperature pickup coil. The pickup coil (30-mm diameter) is set outside the cryostat and is connected to the input coil in the SQUID. The noise level of the magnetometer is 90 fT Hz^-1/2 at 10 kHz. Using the magnetometer, we measured I-MCG signals (below 15 pT) - which were obtained by applying an ac current (10 kHz) with constant amplitude (7 mA, peak-to-peak) to a subject - from the heart.

Original language	English
Pages (from-to)	596-599
Number of pages	4
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	41
Issue number	2 A
DOIs	https://doi.org/10.1143/jjap.41.596
Publication status	Published - Feb 2002
Externally published	Yes

Keywords

Flux transformer
Impedance-magnetocardiogram
Magnetometer
Pickup-coil
SQUID

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

Access to Document

10.1143/jjap.41.596

Cite this

Kandori, A., Suzuki, D., Yokosawa, K., Tsukamoto, A., Miyashita, T., Tsukada, K., & Takagi, K. (2002). A superconducting quantum interference device magnetometer with a room-temperature pickup coil for measuring impedance magnetocardiograms. Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, 41(2 A), 596-599. https://doi.org/10.1143/jjap.41.596

A superconducting quantum interference device magnetometer with a room-temperature pickup coil for measuring impedance magnetocardiograms. / Kandori, Akihiko; Suzuki, Daisuke; Yokosawa, Koichi et al.
In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 41, No. 2 A, 02.2002, p. 596-599.

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

Kandori, A, Suzuki, D, Yokosawa, K, Tsukamoto, A, Miyashita, T, Tsukada, K & Takagi, K 2002, 'A superconducting quantum interference device magnetometer with a room-temperature pickup coil for measuring impedance magnetocardiograms', Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, vol. 41, no. 2 A, pp. 596-599. https://doi.org/10.1143/jjap.41.596

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abstract = "To measure an impedance magnetocardiogram (I-MCG) signal, we have developed a superconducting quantum interference device (SQUID) magnetometer with a room-temperature pickup coil. The pickup coil (30-mm diameter) is set outside the cryostat and is connected to the input coil in the SQUID. The noise level of the magnetometer is 90 fT Hz-1/2 at 10 kHz. Using the magnetometer, we measured I-MCG signals (below 15 pT) - which were obtained by applying an ac current (10 kHz) with constant amplitude (7 mA, peak-to-peak) to a subject - from the heart.",

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AU - Miyashita, Tsuyoshi

AU - Tsukada, Keiji

AU - Takagi, Kazumasa

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A superconducting quantum interference device magnetometer with a room-temperature pickup coil for measuring impedance magnetocardiograms

Abstract

Keywords

ASJC Scopus subject areas

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