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)

摘要

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.

原文英語
頁(從 - 到)381-384
頁數4
期刊IEEE Transactions on Applied Superconductivity
13
發行號2 I
DOIs
出版狀態已發佈 - 2003 六月
事件2002 Applied Superconductivity Conference - Houston, TX, 美国
持續時間: 2002 八月 42002 八月 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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