DocumentCode :
1060844
Title :
Mobile High- 
SQUID System for
Author :
Oyama, Daisuke ; Kobayashi, Koichiro ; Yoshizawa, Masahito ; Uchikawa, Yoshinori
Author_Institution :
Iwate Univ., Morioka, Japan
Volume :
19
Issue :
3
fYear :
2009
fDate :
6/1/2009 12:00:00 AM
Firstpage :
871
Lastpage :
873
Abstract :
We developed a mobile high critical temperature (high-T c) superconducting quantum interference device (SQUID) system for a magnetocardiogram (MCG) measurement. The device is composed of a small cryostat, a high-T c SQUID magnetometer, and digital flux-locked loop (FLL) electronics. A small commercially obtained vacuum bottle enables the device to be hand-held. Large dynamic range was achieved through the digital FLL processing. We also proved the feasibility of this mobile high-T c SQUID system using simple construction. MCG measurements while holding a cryostat and also in unshielded conditions were successfully demonstrated.
Keywords :
SQUID magnetometers; cryostats; magnetocardiography; MCG measurement; SQUID magnetometers; cryostat; digital flux-locked loop electronics; high critical temperature superconducting quantum interference device; magnetocardiogram measurement; mobile high-Tc SQUID system; unshielded conditions; vacuum bottle; Flux-locked loop (FLL); SQUID magnetometers; magnetocardiogram; mobile;
fLanguage :
English
Journal_Title :
Applied Superconductivity, IEEE Transactions on
Publisher :
ieee
ISSN :
1051-8223
Type :
jour
DOI :
10.1109/TASC.2009.2019200
Filename :
5067197
Link To Document :
