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bioRxiv · 10.1101/2021.03.22.435762

Evolution of MEG: a first MEG-feasible fluxgate magnetometer

Koshev, N.·Butorina, A.·Skidchenko, E.·Kuzmichev, A.·Ossadtchi, A.·Ostras, M.·Fedorov, M.·Vetoshko, P.
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Abstract

In the current article we present a first solid-state sensor feasible for magnetoencephalography (MEG), and working 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 the YIGM in terms of MEG by registering a simple brain induced field: the human alpha rhythm 1. All the experiments and results are validated with usage of another kind of high-sensitive magnetometers - optically pumped magnetometer (OPM), which currently appears to be well-established in terms of MEG.

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Koshev, N., Butorina, A., Skidchenko, E., Kuzmichev, A., Ossadtchi, A., Ostras, M., Fedorov, M., Vetoshko, P.. 2021-03-22. Evolution of MEG: a first MEG-feasible fluxgate magnetometer. https://doi.org/10.1101/2021.03.22.435762

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