Recent Developments in Fabrication Methods and Measurement Schemes for Optically Pumped Magnetic Gradiometers: A Comprehensive Review [PDF]
Micromachines, 2023 Optically pumped gradiometers have long been utilized in measurement in the International Geomagnetic Reference Field (IGRF). With advancements in technologies such as laser diodes and microfabrication, integrated gradiometers with compact sizes have ...
Haifeng Dong +3 more
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A Benchmark of Integrated Magnetometers and Magnetic Gradiometers
IEEE Access, 2023 This survey paper compiles and benchmarks the performance of integrated magnetic sensors, in terms of their noise and full-scale magnetic field. In total, we collected performance metrics of 31 sensors realized in various technologies.
Gael Close +2 more
exaly +3 more sources
A Single-Cell Optically Pumped Intrinsic Gradiometer [PDF]
SensorsOptically pumped magnetometers (OPMs) provide a non-cryogenic alternative to superconducting quantum interference devices (SQUIDs) for detecting weak biomagnetic fields.
Nicholaus Zilinski +3 more
doaj +2 more sources
Gradient phase and amplitude errors in atomic magnetic gradiometers for biomagnetic imaging systems [PDF]
iScienceSummary: The cross-axis projection error (CAPE) caused by residual magnetic fields has recently attracted widespread attention. In this study, we propose a more specific theoretical model and expand the CAPE in gradient measurements. We first report that
Ziqi Yuan +5 more
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Simultaneous MEG-LFP Recordings to Assess In Vivo Dystonic Neurophysiological Networks: A Feasibility Study [PDF]
Brain SciencesBackground/Objectives: Subcortical local field potentials (LFPs) provide a valuable in vivo window into the neurophysiology of the dystonia network. These signals can be recorded through Deep Brain Stimulation (DBS) devices and combined with whole-head ...
Elisa Visani +11 more
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SensorsThe performance of the capacitive gap-sensing system plays a critical role in a satellite-based gravity gradiometer that is developed using an electrostatic accelerometer.
Detian Li, Li Yunpeng
exaly +3 more sources
Optimal parameters for rapid (invisible) frequency tagging using MEG [PDF]
NeuroImage, 2023 Frequency tagging has been demonstrated to be a useful tool for identifying representational-specific neuronal activity in the auditory and visual domains. However, the slow flicker (
Tamas Minarik +2 more
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Comparing MEG and EEG measurement set-ups for a brain-computer interface based on selective auditory attention. [PDF]
PLoS ONEAuditory attention modulates auditory evoked responses to target vs. non-target sounds in electro- and magnetoencephalographic (EEG/MEG) recordings. Employing whole-scalp MEG recordings and offline classification algorithms has been shown to enable high ...
Dovilė Kurmanavičiūtė +2 more
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Yttrium-Iron Garnet Magnetometer in MEG: Advance towards Multi-Channel Arrays
Sensors, 2023 Recently, a new kind of sensor applicable in magnetoencephalography (MEG) has been presented: a solid-state yttrium-iron garnet magnetometer (YIGM).
Ekaterina Skidchenko +7 more
doaj +1 more source
Brain Sciences, 2023 Optically pumped magnetometers (OPMs) can capture brain activity but are susceptible to magnetic noise. The objective of this study was to evaluate a novel methodology used to reduce magnetic noise in OPM measurements.
Jing Xiang +8 more
doaj +1 more source