Development of a HTS SQUID module for use with an external pickup coil

A. Tsukamoto, S. Adachi, Y. Oshikubo, K. Tanabe, K. Enpuku

研究成果: ジャーナルへの寄稿学術誌査読

24 被引用数 (Scopus)

抄録

We have developed HTS SQUID modules applicable to various systems, such as nondestructive evaluation and low-field NMR/MRI systems. The SQUID module consists of a directly coupled HTS planar gradiometer and a HTS multi-turn input coil, which are fabricated on separate substrates and stacked with a flip-chip configuration. Two types of input coils, 26-turns and 59-turns, are fabricated. The SQUID module is mounted on a printed circuit board with large electrodes for soldering to the external pickup coil. The mutual inductances between the input coil and SQUID varied from 0.5 to 2.3nH, depending on the number of turns of the input coil and the inductance of the SQUID. The SQUID modules with an external pickup coil made of normal metal showed a lower cut-off frequency of 45Hz and a field noise as low as 35fTHz-1/2 (>4kHz).

本文言語英語
論文番号015013
ジャーナルSuperconductor Science and Technology
26
1
DOI
出版ステータス出版済み - 1月 2013

!!!All Science Journal Classification (ASJC) codes

  • セラミックおよび複合材料
  • 凝縮系物理学
  • 金属および合金
  • 電子工学および電気工学
  • 材料化学

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