Biomagnetic measurements with HTS SQUID magnetometers in moderate shielded environments

Herng Er Horng*, Shou Yen Hung, Jen Tzong Jeng, Shu Hsien Liao, S. C. Hsu, Ji Chuu Hwang, Hong Chang Yang


研究成果: 雜誌貢獻會議論文同行評審

6 引文 斯高帕斯(Scopus)


An HTS SQUID magnetometer for biomagnetic measurements was implemented in a moderate noise shielded environment. The intrinsic noises of the SQUID magnetometer shielded with a tri-layer magnetic shielding cylinder were 50 fT/Hz1/2 above 10 Hz and 100 fT/Hz1/2 at 0.1 Hz. The moderate shielded environments are constructed of mu-metal layers. With the moderate shielding the magnitude of the QRS complex of a rat specimen was found to be around 10 pT and the signal-to-noise ratio was larger than 10. The requirements for improving biomagnetic measurements in the moderate magnetic shielding are discussed.

頁(從 - 到)381-384
期刊IEEE Transactions on Applied Superconductivity
發行號2 I
出版狀態已發佈 - 2003 6月
事件2002 Applied Superconductivity Conference - Houston, TX, 美国
持續時間: 2002 8月 42002 8月 9

ASJC Scopus subject areas

  • 電子、光磁材料
  • 凝聚態物理學
  • 電氣與電子工程


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