Results 11 to 20 of about 1,763,300 (351)

Magnetic-field measurement and analysis for the Muon g−2 Experiment at Fermilab [PDF]

open access: yesPhysical Review A, 2021
The Fermi National Accelerator Laboratory has measured the anomalous precession frequency $a^{}_\mu = (g^{}_\mu-2)/2$ of the muon to a combined precision of 0.46 parts per million with data collected during its first physics run in 2018.
T. Albahri   +172 more
semanticscholar   +1 more source

Measurement of the Positive Muon Anomalous Magnetic Moment to 0.20 ppm. [PDF]

open access: yesPhysical Review Letters, 2023
We present a new measurement of the positive muon magnetic anomaly, a_{μ}≡(g_{μ}-2)/2, from the Fermilab Muon g-2 Experiment using data collected in 2019 and 2020.
D. Aguillard   +327 more
semanticscholar   +1 more source

High-sensitivity operation of a single-beam atomic magnetometer for three-axis magnetic field measurement.

open access: yesOptics Express, 2021
We demonstrate a single-beam atomic magnetometer (AM) capable of measuring a three-axis magnetic field with high-sensitivity, achieved by applying a small DC offset field and a high frequency modulation field. To satisfy the miniaturization demand of AMs,
Junjian Tang   +8 more
semanticscholar   +1 more source

Measurement of magnetic field and relativistic electrons along a solar flare current sheet [PDF]

open access: yesNature Astronomy, 2020
In the standard model of solar flares, a large-scale reconnection current sheet is postulated to be the central engine for powering the flare energy release1–3 and accelerating particles4–6.
Bin Chen   +10 more
semanticscholar   +1 more source

Measurement of the Positive Muon Anomalous Magnetic Moment to 0.46 ppm. [PDF]

open access: yesPhysical Review Letters, 2021
We present the first results of the Fermilab National Accelerator Laboratory (FNAL) Muon g-2 Experiment for the positive muon magnetic anomaly a_{μ}≡(g_{μ}-2)/2.
B. Abi   +236 more
semanticscholar   +1 more source

On-Chip Mach-Zehnder-Like Interferometer for Atomic Spin Precession Detection

open access: yesIEEE Photonics Journal, 2023
At present, most atomic spin precession detection schemes use discrete optical elements, which lead to bulky detection systems. However, chip-based spin precession detection schemes lack modulation, resulting in lower detection sensitivity. In this paper,
Zhibo Cui   +4 more
doaj   +1 more source

Nonzero-Order Resonances in Single-Beam Spin-Exchange Relaxation-Free Magnetometers

open access: yesPhotonics, 2023
Zero-field optically pumped magnetometers operating in the spin-exchange relaxation-free (SERF) regime have been extensively studied, and usually depend on zeroth-order parametric resonance to measure the magnetic field. However, the studies conducted on
Kun Wang   +5 more
doaj   +1 more source

Magnetic Field Measurements for Fast-Changing Magnetic Fields [PDF]

open access: yesIEEE Transactions on Appiled Superconductivity, 2005
Several recent applications for fast ramped magnets have been found that require rapid measurement of the field quality during the ramp. (In one instance, accelerator dipoles will be ramped at 1 T/sec, with measurements needed to the accuracy typically required for accelerators.) We have built and tested a new type of magnetic field measuring system to
Jain, A.   +6 more
openaire   +2 more sources

OMMR: Co-registration toolbox of OPM-MEG and MRI

open access: yesFrontiers in Neuroscience, 2022
Magnetoencephalography (MEG) based on optically pumped magnetometers (OPM-MEG) has shown better flexibility in sensor configuration compared with the conventional superconducting quantum interference devices-based MEG system while being better suited for
Fuzhi Cao   +19 more
doaj   +1 more source

Optimal design of bi-planar heater with magnetic field self-suppression configuration based on multi-objective optimization

open access: yesResults in Physics, 2023
As a crucial component, the vapor cell serves as the fundamental sensing element in various atomic sensors, and electric heating is typically required to enhance the density of alkali metal atoms.
Huimin Wang   +4 more
doaj   +1 more source

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