A 61-channel SQUID system for MEG measurement cooled by a GM/JT cryocooler

Authors :: Sata, K.
Fujimoto, S.
Fukui, N.
Haraguchi, E.
Kido, T.
Nishiguchi, K.
Kang, Y.M.
Source :: IEEE Transactions on Applied Superconductivity. June, 1997, Vol. 7 Issue 2, p2526, 4 p.
Publication Year :: 1997
Abstract: A 61-channel superconducting quantum interference device-based MEG measurement system cooled by a hybrid Gifford-McMahon/Joule-Thomson cryocooler has been fabricated. The system is capable of conforming to a human head due to the 61-channels of axial gradiometers arranged on a spherical surface. The system was demonstrated by applying it for faint biomagnetic field measurements of the human brain.