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Two-hole bulk high-critical temperature SQUID electronic gradiometer for magnetocardiography in unshielded space.

Author(s) : TAVRIN Y. A., XU Y., BRAGINSKI A. I., HEIDEN C., LINNIK A. S., PAVLIUK V. A., SCHAPOVALENKO V. V.

Type of article: Article

Summary

A first order electronic gradiometer has been developed. The use of two-hole bulk YBCO radio frequency SQUIDs permitted optimization of the characteristic SQUID parameter without compromising the noise performance. A field/flux transformation coefficient, a common mode suppression and a peak-to-peak noise amplitude in an unshielded environment make it possible to record human heart beat signals.

Details

  • Original title: Two-hole bulk high-critical temperature SQUID electronic gradiometer for magnetocardiography in unshielded space.
  • Record ID : 1994-1425
  • Languages: English
  • Source: Cryogenics - vol. 33 - n. 7
  • Publication date: 1993

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