Results 31 to 40 of about 654,780 (138)

All-Optical Parametric-Resonance Magnetometer Based on ⁴He Atomic Alignment

Sensors, 2022
Parametric-resonance magnetometer is a high-sensitivity quantum sensor characterized by applying the non-resonant radio-frequency (RF) fields to the atomic ensemble. The RF fields lead to crosstalk in the multi-sensor design, thus disturbing the magnetic-
Bowen Wang, Xiang Peng, Haidong Wang, Wei Xiao, Hong Guo   +4 more
doaj   +1 more source

Three-Axis Atomic Magnetometer Employing Longitudinal Field Modulation

IEEE Photonics Journal, 2017
A three-axis atomic magnetometer employing longitudinal field modulation is demonstrated theoretically and experimentally. The operational condition of this magnetometer is that the longitudinal z-component of the external magnetic field is dominant ...
Zhichao Ding, Jie Yuan, Guangfeng Lu, Yingying Li, Xingwu Long   +4 more
doaj   +1 more source

A τ−1 measurement across three orders of magnitude based on an atomic spin precession magnetometer in self-sustaining mode

AIP Advances, 2019
The absolute measurement of magnetic fields can be realized by monitoring the Larmor precession of atomic spins. Yet, this spin-precession magnetometer can only be put into use in weak magnetic fields and the sensitivity is limited by the coherence time ...
Q. Zhao, B. L. Fan, S. G. Wang, L. J. Wang   +3 more
doaj   +1 more source

A Coil Constant Calibration Method Based on the Phase-Frequency Response of Alkali Atomic Magnetometer

Photonic Sensors, 2019
We propose an in-situ method to calibrate the coil constants of the optical atomic magnetometer. This method is based on measuring the Larmor precession of spin polarized alkali metal atoms and has been demonstrated on a K-Rb hybrid atomic magnetometer ...
Han Yao, Danyue Ma, Junpeng Zhao, Jixi Lu, Ming Ding   +4 more
doaj   +1 more source

Suppression of thermal coupling noise in the SERF atomic co-magnetometer

Results in Physics, 2023
Heating the alkali metal vapor cell to obtain high atomic density is a prerequisite for realizing the high-precision measurement for spin-exchange relaxation-free (SERF) co-magnetometer.
Jiasen Ruan, Lihong Duan, Yang Fu, Lv Yang, Wenfeng Fan, Xinxiu Zhou, Wei Quan   +6 more
doaj   +1 more source

Measurement of longitudinal nuclear spin relaxation time in NMR gyroscope by real-time monitoring

AIP Advances, 2022
In the atomic cell of a nuclear magnetic resonance gyroscope, a transverse bias field is applied to enable the in situ alkali magnetometer to sense the variations in the longitudinal magnetic field.
Yang Zhang, Jintao Zheng, Zaiyang Yu, Zhiqiang Xiong, Zhiguo Wang, Hui Luo   +5 more
doaj   +1 more source

Enhanced material defect imaging with a radio-frequency atomic magnetometer [PDF]

, 2019
Imaging of structural defects in a material can be realized with a radio-frequency atomic magnetometer by monitoring the material’s response to a radio-frequency excitation field.
Bevington, P., Chalupczak, W., Gartman, R.   +2 more
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The polarization and the fundamental sensitivity of 39K (133Cs)-85Rb-4He hybrid optical pumping spin exchange relaxation free atomic magnetometers

Scientific Reports, 2017
The hybrid optical pumping spin exchange relaxation free (SERF) atomic magnetometers can realize ultrahigh sensitivity measurement of magnetic field and inertia.
Jian-Hua Liu, Dong-Yang Jing, Liang-Liang Wang, Yang Li, Wei Quan, Jian-Cheng Fang, Wu-Ming Liu   +6 more
doaj   +1 more source

Dead-zone-free orientation-based pulsed atomic magnetometer

Physical Review Research
The dead zones of atomic magnetometers bring great challenges for the mobile applications in high-sensitivity magnetic field measurement. To solve this fundamental problem, we present a dead-zone-free orientation-based atomic magnetometer employing free ...
Jinghong Xu, Liwei Jiang, Yuntian Zou, Xu Li, Haowen Tian, Wenjing Tian, Chi Fang, Yuanqiang Chen, Jiali Liu   +8 more
doaj   +1 more source

Atomic Power Development Associates Report APDA-108 [PDF]

, 1955
Report that generally describes sodium cooled fast reactors, the features and facilities of such a reactor proposed by Atomic Power Development Associates, and then its safety and siting ...
Atomic Power Development Associates
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