Title :
Development of a 6-Channel High- TC SQUID Magnetocardiograph System
Author :
Kim, I.S. ; Oh, S.H. ; Kim, K.W. ; Lee, Y.H. ; Lee, S.G. ; Park, Y.K.
Author_Institution :
Korea Res. Inst. of Stand. & Sci., Daejeon
fDate :
6/1/2007 12:00:00 AM
Abstract :
We have developed a new type of magnetocardiograph (MCG) system employing 6 high-TC SQUID magnetometers. We have fabricated high performance YBCO SQUID devices for the system. The lightweight MCG system, requiring liquid nitrogen as a coolant, consists of 6-channel SQUID sensors and an adjustable patient bed with sliding motion. The MCG system showed stable operation in a room with moderate magnetic shielding. In normal operation with a moving subject, we could obtain 36-point and 48-point MCG mappings with high enough signal qualities for clinical trials.
Keywords :
SQUID magnetometers; coolants; magnetic shielding; magnetocardiography; sensors; 6-channel SQUID sensors; 6-channel high-TC SQUID magnetocardiograph system; MCG system; YBCO SQUID devices; coolant; liquid nitrogen; magnetic shielding; magnetometer; signal qualities; sliding motion; Biosensors; Magnetic field measurement; Magnetic films; Magnetic sensors; Magnetic shielding; SQUID magnetometers; Sensor systems; Signal mapping; Superconducting magnets; Yttrium barium copper oxide; High-$T_{rm C}$ SQUID; YBCO; magnetic field map; magnetocardiograph;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
DOI :
10.1109/TASC.2007.898161
