Atomic magnetic resonance based current source

V. Ya Shifrin; C. G. Kim; P. G. Park

doi:10.1063/1.1146818

Atomic magnetic resonance based current source

V. Ya Shifrin, C. G. Kim, P. G. Park

Department of Physics and Chemistry

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11 Scopus citations

Abstract

A current of 1 A has been stabilized by locking the magnetic resonance frequency of Cs atoms placed at the center of a solenoid. Two auxiliary windings are used to obtain at the center of the solenoid a field uniformity better than 0.5 ppm in a 2 cm radius sphere, in agreement with the calculations. The variations of the external field and the effect of temperature changes are compensated for by two auxiliary feedback systems using a flux gate magnetometer and an adjustment of the locking frequency, respectively. The current fluctuation, including the noise of the current measuring system is 0.1 ppm and the current drift for 6 h is less than 0.2 ppm.

Original language	English
Pages (from-to)	833-836
Number of pages	4
Journal	Review of Scientific Instruments
Volume	67
Issue number	3
DOIs	https://doi.org/10.1063/1.1146818
State	Published - Mar 1996

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title = "Atomic magnetic resonance based current source",

abstract = "A current of 1 A has been stabilized by locking the magnetic resonance frequency of Cs atoms placed at the center of a solenoid. Two auxiliary windings are used to obtain at the center of the solenoid a field uniformity better than 0.5 ppm in a 2 cm radius sphere, in agreement with the calculations. The variations of the external field and the effect of temperature changes are compensated for by two auxiliary feedback systems using a flux gate magnetometer and an adjustment of the locking frequency, respectively. The current fluctuation, including the noise of the current measuring system is 0.1 ppm and the current drift for 6 h is less than 0.2 ppm.",

author = "Shifrin, \{V. Ya\} and Kim, \{C. G.\} and Park, \{P. G.\}",

year = "1996",

month = mar,

doi = "10.1063/1.1146818",

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journal = "Review of Scientific Instruments",

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T1 - Atomic magnetic resonance based current source

AU - Shifrin, V. Ya

AU - Kim, C. G.

AU - Park, P. G.

PY - 1996/3

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N2 - A current of 1 A has been stabilized by locking the magnetic resonance frequency of Cs atoms placed at the center of a solenoid. Two auxiliary windings are used to obtain at the center of the solenoid a field uniformity better than 0.5 ppm in a 2 cm radius sphere, in agreement with the calculations. The variations of the external field and the effect of temperature changes are compensated for by two auxiliary feedback systems using a flux gate magnetometer and an adjustment of the locking frequency, respectively. The current fluctuation, including the noise of the current measuring system is 0.1 ppm and the current drift for 6 h is less than 0.2 ppm.

AB - A current of 1 A has been stabilized by locking the magnetic resonance frequency of Cs atoms placed at the center of a solenoid. Two auxiliary windings are used to obtain at the center of the solenoid a field uniformity better than 0.5 ppm in a 2 cm radius sphere, in agreement with the calculations. The variations of the external field and the effect of temperature changes are compensated for by two auxiliary feedback systems using a flux gate magnetometer and an adjustment of the locking frequency, respectively. The current fluctuation, including the noise of the current measuring system is 0.1 ppm and the current drift for 6 h is less than 0.2 ppm.

UR - https://www.scopus.com/pages/publications/0038690724

U2 - 10.1063/1.1146818

DO - 10.1063/1.1146818

M3 - Article

AN - SCOPUS:0038690724

SN - 0034-6748

VL - 67

SP - 833

EP - 836

JO - Review of Scientific Instruments

JF - Review of Scientific Instruments

IS - 3

ER -

Atomic magnetic resonance based current source

Abstract

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