Results 41 to 50 of about 2,930 (181)
NeuroImage, 2021 Here we propose that much of the magnetic interference observed when using optically pumped magnetometers for MEG experiments can be modeled as a spatially homogeneous magnetic field.
Tim M. Tierney +7 more
doaj +1 more source
Magnetoencephalography with optically pumped magnetometers (OPM-MEG): the next generation of functional neuroimaging. [PDF]
Trends Neurosci, 2022 Brookes MJ +6 more
europepmc +2 more sources
High Sensitivity Optically Pumped Quantum Magnetometer [PDF]
The Scientific World Journal, 2013 Quantum magnetometers based on optical pumping can achieve sensitivity as high as what SQUID‐based devices can attain. In this paper, we discuss the principle of operation and the optimal design of an optically pumped quantum magnetometer. The ultimate intrinsic sensitivity is calculated showing that optimal performance of the magnetometer is attained ...
Tiporlini, Valentina, Alameh, Kamal
openaire +4 more sources
Optically pumped magnetometers reveal fasciculations non-invasively
Clinical Neurophysiology, 2021 This proof-of-principle-study evaluated the extent to which spontaneous activity (SA) of the muscle can be detected via non-invasive magnetomyography (MMG) with optically pumped magnetometers (OPM).Five patients, who together exhibited all forms of SA (fibrillations, positive sharp waves, fasciculations, myotonic discharges, complex-repetitive ...
Justus Marquetand +11 more
openaire +3 more sources
Software program development of a high-precision magnetometer system for human-occupied vehicles [PDF]
Geoscientific Instrumentation, Methods and Data SystemsCesium optically pumped magnetometers are widely used in geophysical exploration, environmental monitoring, and scientific research for magnetic field measurements.
Q. Zhang +6 more
doaj +1 more source
VCSEL frequency stabilization for optically pumped magnetometers [PDF]
Chinese Optics Letters, 2021 Optically pumped magnetometers (OPMs) have developed rapidly in the bio-magnetic measurement field, which requires lasers with stable frequency and intensity for high sensitivity. Herein we stabilize a vertical-cavity surface-emitting laser (VCSEL) without any additional setup except for the parts of an OPM.
Yeguang Yan +5 more
openaire +1 more source
A sound card based multi-channel frequency measurement system [PDF]
, 2005 For physical processes which express themselves as a frequency, for example magnetic field measurements using optically-pumped alkali-vapor magnetometers, the precise extraction of the frequency from the noisy signal is a classical problem.
Bison, G. +3 more
core +2 more sources
Rapid Online Solid-State Battery Diagnostics with Optically Pumped Magnetometers
Applied Sciences, 2020 Solid-state battery technology is motivated by the desire to deliver flexible power storage in a safe and efficient manner. The increasingly widespread use of batteries from mass production facilities highlights the need for a rapid and sensitive ...
Yinan Hu +9 more
doaj +1 more source
Light shift averaging in paraffin-coated alkali vapor cells [PDF]
, 2015 Light shifts are an important source of noise and systematics in optically pumped magnetometers. We demonstrate that the long spin coherence time in paraffin-coated cells leads to spatial averaging of the light shifts over the entire cell volume.
Budker, Dmitry +5 more
core +3 more sources
Optimizing NV magnetometry for Magnetoneurography and Magnetomyography applications
Frontiers in Neuroscience, 2023 Magnetometers based on color centers in diamond are setting new frontiers for sensing capabilities due to their combined extraordinary performances in sensitivity, bandwidth, dynamic range, and spatial resolution, with stable operability in a wide range ...
Chen Zhang +12 more
doaj +1 more source