Title of article
Biomagnetic measurements with HTS SQUID magnetometers in moderate shielded environments
Author/Authors
Yang، Hong-Chang نويسنده , , Jeng، Jen-Tzong نويسنده , , Horng، Herng-Er نويسنده , , Hung، Shou-Yen نويسنده , , Liao، Shu-Hsien نويسنده , , S.-C.، Hsu, نويسنده , , Hwang، Ji-Chuu نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2003
Pages
-380
From page
381
To page
0
Abstract
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/Hz/sup 1/2/ above 10 Hz and 100 fT/Hz/sup 1/2/ 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.
Keywords
folate , Cretan Mediterranean diet , homocysteine , Ischaemic heart disease
Journal title
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
Serial Year
2003
Journal title
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
Record number
94047
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