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Browse Journals & Magazines > Applied Superconductivity, IE ...> Volume:21 Issue:3 Help

Development of a Mouse Biomagnetic Measurement System by Using a High- T_{\rm C} SQUID Magnetometer

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4 Author(s)
Kim, In‐Seon ; Korea Res. Inst. of Stand. & Sci., Daejeon, South Korea ; San Ahn ; Chul-Ho Lee ; Lee, Yong-Ho

We have developed a biomagnetic measurement system for mouse by using high-TC SQUID magnetometer. The system consists of a high-TC SQUID magnetometer, a table-top magnetically shielded box, and a nonmagnetic dewar with a warm-to-cool distance of about 4 mm. Mice with weights of about 27 g were anesthetized and fixed in supine position on a plastic xyz-stage inside the shield box. The SQUID readout signal was digitized in 24-bit and recorded with sampling rate of 1280 Hz. We carried out a scanning measurement by changing x- and y-position of the subject inside the shield box. Finally, we could obtain clear mouse MCG waveforms of about 20 pT in peak amplitude with well defined P-, QRS-, and T-wave. We demonstrated the high-TC SQUID magnetometer based biomagnetic measurement system is useful for monitoring mouse MCG signals with sufficient noise-to-signal ratio.

Published in:
Applied Superconductivity, IEEE Transactions on  (Volume:21 ,  Issue: 3 )

Date of Publication: June 2011

Page(s):
493 - 496
ISSN :
1051-8223
INSPEC Accession Number:
12022935
Digital Object Identifier :
10.1109/TASC.2010.2094993
Product Type:
Journals & Magazines
Date of Publication :
23 December 2010
Date of Current Version :
27 May 2011
Issue Date :
June 2011
Sponsored by :
The IEEE Council on Superconductivity

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