Open AccessEvolution of MEG : A first MEG ‐feasible fluxgate magnetometer
Author(s) -
Koshev Nikolay,
Butorina Anna,
Skidchenko Ekaterina,
Kuzmichev Alexey,
Ossadtchi Alexei,
Ostras Maxim,
Fedorov Maxim,
Vetoshko Petr
Publication year - 2021
Publication title -
human brain mapping
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.005
H-Index - 191
eISSN - 1097-0193
pISSN - 1065-9471
DOI - 10.1002/hbm.25582
Subject(s) - magnetometer , magnetoencephalography , fluxgate compass , magnetic field , computer science , physics , squid , materials science , acoustics , nuclear magnetic resonance , electrical engineering , engineering , neuroscience , psychology , biology , electroencephalography , quantum mechanics , ecology
In the current article, we present the first solid‐state sensor feasible for magnetoencephalography (MEG) that works at room temperature. The sensor is a fluxgate magnetometer based on yttrium‐iron garnet films (YIGM). In this feasibility study, we prove the concept of usage of the YIGM in terms of MEG by registering a simple brain induced field—the human alpha rhythm. All the experiments and results are validated with usage of another kind of high‐sensitive magnetometers—optically pumped magnetometer, which currently appears to be well‐established in terms of MEG.