PicoTesla absolute field readings with a hybrid 3He/87Rb magnetometer
PicoTesla absolute field readings with a hybrid 3He/87Rb magnetometer
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DOI：
10.1140/epjd/e2019-100094-1
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发表时间：
2019-03
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影响因子：
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通讯作者：
C. Abel;G. Bison;W. Griffith;W. Heil;K. Kirch;K. Kirch;H. Koch;B. Lauss;A. Mtchedlishvili;M. Pototschnig;P. Schmidt-Wellenburg;A. Schnabel;D. Pais;J. Voigt
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文献类型：
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作者：
C. Abel;G. Bison;W. Griffith;W. Heil;K. Kirch;K. Kirch;H. Koch;B. Lauss;A. Mtchedlishvili;M. Pototschnig;P. Schmidt-Wellenburg;A. Schnabel;D. Pais;J. Voigt
本文介绍了用混合式~ 3 He/~（87）磁强计测量pT范围内的绝对磁场。测量进行了探测时间依赖3 He磁化using 87 Rb零场磁强计。进行了测量，以证明使用磁力计消除磁屏蔽内的残余磁场。结果表明，绝对场可以减少到10 pT的水平，通过使用从磁力计的场读数。此外，混合磁强计被证明是适用于通过优化有效的3 HeT 2时间的梯度场的减少。该过程代表了一种方便且一致的方式来提供接近零的磁场环境，该磁场环境可以潜在地用作生成用于精密测量的所需磁场配置的基础。图形摘要
AbstractWe demonstrate the use of a hybrid3He/87magnetometer to measure absolute magnetic fields in the pT range. The measurements were undertaken by probing time-dependent3He magnetisation using87Rb zero-field magnetometers. Measurements were taken to demonstrate the use of the magnetometer in cancelling residual fields within a magnetic shield. It was shown that the absolute field could be reduced to the 10 pT level by using field readings from the magnetometer. Furthermore, the hybrid magnetometer was shown to be applicable for the reduction of gradient fields by optimising the effective3HeT2time. This procedure represents a convenient and consistent way to provide a near zero magnetic field environment which can be potentially used as a base for generating desired magnetic field configurations for use in precision measurements.Graphical abstract