Results 151 to 160 of about 90,554 (217)

Using optically pumped magnetometers to measure magnetoencephalographic signals in the human cerebellum. [PDF]

J Physiol, 2019
Lin CH, Tierney TM, Holmes N, Boto E, Leggett J, Bestmann S, Bowtell R, Brookes MJ, Barnes GR, Miall RC.   +9 more
europepmc   +1 more source

Optically pumped magnetometers: From quantum origins to multi-channel magnetoencephalography. [PDF]

Neuroimage, 2019
Tierney TM, Holmes N, Mellor S, López JD, Roberts G, Hill RM, Boto E, Leggett J, Shah V, Brookes MJ, Bowtell R, Barnes GR.   +11 more
europepmc   +1 more source

Low-Cost Fetal Magnetocardiography: A Comparison of Superconducting Quantum Interference Device and Optically Pumped Magnetometers. [PDF]

J Am Heart Assoc, 2019
Strand S, Lutter W, Strasburger JF, Shah V, Baffa O, Wakai RT.   +5 more
europepmc   +1 more source

[Movable Array of Magnetoencephalography With Optically Pumped Magnetometers Effectively Captures Primary Auditory-Evoked Response Signals in Healthy Populations at Low Altitudes]. [PDF]

Sichuan Da Xue Xue Bao Yi Xue Ban
Yuan Y, Chen Z, Sun W, Fu S, Jin L, Sheng J, Meng Q, Wu J, Chen L, Xing H.   +9 more
europepmc   +1 more source

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Magnetomyography with optically pumped magnetometers

Quantum Effects and Measurement Techniques in Biology and Biophotonics II
Biomagnetic measurements of muscles have increasingly gained interest in recent years. While before hardly any sensors other than superconducting quantum interference devices (SQUIDs) could be considered for non-invasive biomagnetic measurements, since a
Simon Nordenström, Victor Lebedev, Santiago Rodriguez, Stefan Hartwig, Marlen Kruse, Philip J. Broser, Justus Marquetand, Thomas Middelmann   +7 more
openaire   +2 more sources

Optically Pumped Nuclear Magnetometer

Review of Scientific Instruments, 1963
A continuous recording total earth's field magnetometer has been demonstrated which utilizes optical pumping in He3 and the resultant polarization of the nuclear spins. The device operates as a ``self-oscillator'' at the Larmor frequency of the ground state atoms. The oscillator has a ``Q'' of 104 in a 0.5-G field.
L. D. Schearer, F. D. Colegrove, G. K. Walters   +2 more
openaire   +1 more source

Optically Pumped Magnetometers Recent Advances and Applications in Biomagnetism: A Review

IEEE Sensors Journal, 2023
Alkali metal optically pumped magnetometers (OPMs), with a particular emphasis on spin-exchange relaxation-free (SERF) atomic magnetometers, have garnered considerable attention due to their remarkable sensitivity.
Binbin Zhao, Lin Li, Yaohua Zhang, Junjian Tang, Ying Liu, Y. Zhai   +5 more
semanticscholar   +1 more source

Reducing crosstalk in optically-pumped magnetometer arrays

Physics in Medicine & Biology, 2019
Optically pumped magnetometers (OPMs) operating in the spin-exchange relaxation-free regime are emerging as alternative sensors to superconducting quantum interference devices (SQUIDs) for magnetoencephalography (MEG). As the number of OPMs in a single imaging system increases to rival SQUID MEG systems, cross-talk between nearby sensors limits the ...
N V Nardelli, S P Krzyzewski, S A Knappe
openaire   +2 more sources

Optically Pumped Magnetometers for MEG

2014
Optically-pumped magnetometers (OPMs) have seen rapid progress over the last decade in terms of performance and technology development. As highly sensitive room-temperature magnetometers they present several advantages over superconducting quantum interference device (SQUID) sensors, such as the possibility for conformal geometries and low-maintenance ...
Svenja Knappe, Tilmann Sander, Lutz Trahms   +2 more
openaire   +1 more source

Magnetocardiography using optically pumped magnetometers array to detect acute myocardial infarction and premature ventricular contractions in dogs

Physics in Medicine and Biology, 2023
Objective. Optically pumped magnetometers (OPMs) are recently developed magnetocardiography (MCG) sensors that can detect cardiac diseases. This is of great clinical significance for detecting acute myocardial infarction (AMI) and premature ventricular ...
Xiaole Han, Xiaoyan Xue, Yanfei Yang, Xiaoyu Liang, Yang Gao, Min Xiang, Jinji Sun, Xiao-Jing Ning   +7 more
semanticscholar   +1 more source