PicoTesla absolute field readings with a hybrid 3He/87Rb magnetometer
Abstract
We demonstrate the use of a hybrid He / Rb magnetometer to measure absolute magnetic fields in the pT range. The measurements were undertaken by probing time-dependent He magnetisation using Rb 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 effective He time. 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.
Keywords
Cite
@article{arxiv.1903.01492,
title = {PicoTesla absolute field readings with a hybrid 3He/87Rb magnetometer},
author = {Christopher Abel and Georg Bison and W. Clark Griffith and Werner Heil and Klaus Kirch and Hans-Christian Koch and Bernhard Lauss and Alexander Mtchedlishvili and Martin Pototschnig and Philipp Schmidt-Wellenburg and Allard Schnabel and Duarte Vicente Pais and Jens Voigt},
journal= {arXiv preprint arXiv:1903.01492},
year = {2019}
}