TY  - JOUR
AU  - Dammers, Jürgen
AU  - Chocholacs, Harald
AU  - Eich, Eberhard
AU  - Boers, Frank
AU  - Faley, Michael
AU  - Dunin-Borkowski, Rafal
AU  - Shah, N. J.
TI  - Source localization of brain activity using helium free interferometer
JO  - Applied physics letters
VL  - 104
SN  - 1077-3118
CY  - Melville, NY
PB  - American Institute of Physics
M1  - FZJ-2014-03439
SP  - 213705
PY  - 2014
AB  - To detect extremely small magnetic fields generated by the human brain, currently all commercial magnetoencephalography (MEG) systems are equipped with low-temperature (low-Tc) superconducting quantum interference device (SQUID) sensors that use liquid helium for cooling. The limited and increasingly expensive supply of helium, which has seen dramatic price increases recently, has become a real problem for such systems and the situation shows no signs of abating. MEG research in the long run is now endangered. In this study, we report a MEG source localization utilizing a single, highly sensitive SQUID cooled with liquid nitrogen only. Our findings confirm that localization of neuromagnetic activity is indeed possible using high-Tc SQUIDs. We believe that our findings secure the future of this exquisitely sensitive technique and have major implications for brain research and the developments of cost-effective multi-channel, high-Tc SQUID-based MEG systems.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000337143000063
DO  - DOI:10.1063/1.4880097
UR  - https://juser.fz-juelich.de/record/154014
ER  -