Development of high-temperature superconducting SQUID system for magnetocardiography

Akira Tsukamoto, Daisuke Suzuki, Koichi Yokosawa, Akihiko Kandori, Yusuke Seki, Kuniomi Ogata, Tsuyoshi Miyashita, Kazuo Saitoh, Keiji Tsukada

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


As a new clinical examination apparatus for cardiac diseases, attention is focused on the magnetocardiograph, which can represent electrophysiological phenomena of the heart noninvasively as graphical information. We have been developing a compact and portable high-temperature superconducting magnetocardiograph based on our technology for magnetocardiographs using low-temperature superconductors. Since a high-temperature superconducting magnetocardiograph can work with liquid nitrogen cooling, it allows miniaturization and lower running costs. Hence, it is expected to help popularize magnetocardiographs by its use in smaller hospitals and in group medical examinations in the field. In this paper, we introduce the prototype high-temperature superconducting magnetocardiographs we have made, and report the fabrication technology for a highly sensitive high-temperature SQUID and the technology for external noise shielding and compensation.

Original languageEnglish
Pages (from-to)46-55
Number of pages10
JournalElectronics and Communications in Japan, Part II: Electronics (English translation of Denshi Tsushin Gakkai Ronbunshi)
Issue number4
Publication statusPublished - Apr 1 2007


  • High-temperature superconductivity
  • Magnetic shield
  • Magnetocardiograph
  • YBaCuOy

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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