A device for the precision measurement of an inhomogenous magnetic field

1957 ◽  
Vol 1 (5) ◽  
pp. 253-258 ◽  
Author(s):  
Gunnar Bäckström
Keyword(s):  
Magnetic Field ◽  
Precision Measurement

The L3 experiment

1991 ◽  
Vol 336 (1642) ◽  
pp. 223-236 ◽  
Keyword(s):  
Magnetic Field ◽  
Precision Measurement ◽  
And Performance

The L3 experiment has completed the first two years of data-taking at the LEP e + e - collider at CERN. The detectors are contained in a very large solenoidal magnetic field volume, with the emphasis on precision measurement of electrons, photons and muons. The physics goals, design and performance of the detector are reviewed, with highlights from the results that have been obtained during LEP running at the Z 0 resonance.

Precision measurement of laser RF double resonance spectra with an effective compensation of residual magnetic field

2013 ◽  
Vol 227 (1-3) ◽  
pp. 147-156 ◽  
Author(s):  
X. F Yang ◽  
◽  
T. Furukawa ◽  
T. Fujita ◽  
K. Imamura ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Precision Measurement ◽  
Double Resonance ◽  
Residual Magnetic Field

scholarly journals Optimization Design on a High-performance Magnetic Shielding Barrel for Atomic Magnetometer Measurement Application

2022 ◽  
Vol 2160 (1) ◽  
pp. 012033
Author(s):  
Xiaoxuan Xie ◽  
Xiangyang Zhou
Keyword(s):  
Magnetic Field ◽  
Precision Measurement ◽  
High Performance ◽  
Optimization Design ◽  
Magnetic Shielding ◽  
High Precision Measurement ◽  
Number Of Layers ◽  
Optimal Distance ◽  
Shielding Factor ◽  
Residual Magnetic Field

Abstract The ultra-high-precision measurement of the atomic magnetometer is largely restricted by the size of its working magnetic field. In order to reduce the residual magnetic field as much as possible, this article carried out the research on the methods to improve the shielding performance. Firstly, the axial shielding factor that limits the shielding performance of the magnetic shielding barrel was derived with various parameters including the radius, length, thickness, number of layers, distance between adjacent layers, etc. of the magnetic shielding barrel. Secondly, simulation was carried out to verify the correctness of the formula. Simulation shows that the shielding performance of the magnetic shielding barrel decreases with the size of magnetic shielding barrel increase. Besides, with the increase of the distance between two adjacent spacing layers, the shielding performance first increases rapidly and then gradually decreases, indicating that the optimal distance between adjacent layers is 9mm. Especially, the performance of the magnetic shielding barrel improves significantly as the layer thickness and number of layers increase. Experimental results show that the internal remanence of the three-layer magnetic shielding barrel is less than 1nT, and the available axial length of homogeneity range is greater than 200mm.

scholarly journals Precision measurement of the quantized anomalous Hall resistance at zero magnetic field

2018 ◽  
Vol 112 (7) ◽  
pp. 072102 ◽  
Author(s):  
Martin Götz ◽  
Kajetan M. Fijalkowski ◽  
Eckart Pesel ◽  
Matthias Hartl ◽  
Steffen Schreyeck ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Precision Measurement ◽  
Zero Magnetic Field ◽  
Hall Resistance

Muonium. III. Precision Measurement of the Muonium Hyperfine-Structure Interval at Strong Magnetic Field

1972 ◽  
Vol 5 (6) ◽  
pp. 2338-2356 ◽  
Author(s):  
W. E. Cleland ◽  
J. M. Bailey ◽  
M. Eckhause ◽  
V. W. Hughes ◽  
R. Prepost ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Hyperfine Structure ◽  
Strong Magnetic Field ◽  
Precision Measurement ◽  
Muonium Hyperfine

Precision Measurement of the Electron Orbital Gyromagnetic Factor: Relativistic Contributions from Zitterbewegung

2021 ◽  
Author(s):  
A.M. Awobode
Keyword(s):  
Magnetic Field ◽  
Landau Level ◽  
High Precision ◽  
Precision Measurement ◽  
Reasonable Agreement ◽  
Spectroscopic Techniques ◽  
Massless Particles ◽  
G Factor ◽  
Electron Orbital ◽  
Order Of Magnitude

The contribution, by zitterbewegung, to a probable correction to the electron orbital g-factor is calculated. For an electron in a magnetic field, the orbital g-factor g<sub>L</sub> is not equal to 1 exactly, and the calculated anomaly, compared with the experimentally observed values, are in reasonable agreement, both in sign and order of magnitude. The contribution of zitterbewegung to the linewidth or broadening of a Landau level is calculated. An expression for the lifetime of a state is derived, showing that the electron is placed, due to zitterbewegung, in a state with a finite lifetime, with the probable emission/absorption of massless particles. The expected anomaly in the electron orbital g-factor may be measured using high-precision spectroscopic techniques.

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