Evolution of <scp>MEG</scp> : A first <scp>MEG</scp> ‐feasible fluxgate magnetometer
Nikolay Koshev, Anna Butorina, Ekaterina Skidchenko, A. N. Kuzmichev, Alexei Ossadtchi, Maxim Ostras, Maxim V. Fedorov, П. М. Ветошко
Abstract
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.
Topics & Concepts
MagnetometerMagnetoencephalographyFluxgate compassMagnetic fieldPhysicsComputer scienceNuclear magnetic resonanceMaterials scienceAcousticsElectrical engineeringNeuroscienceBiologyEngineeringElectroencephalographyQuantum mechanicsAtomic and Subatomic Physics ResearchAdvanced MRI Techniques and ApplicationsFunctional Brain Connectivity Studies