PicoTesla absolute field readings with a hybrid 3He/87Rb magnetometer

Abel, Christopher, Bison, Georg, Griffith, W Clark, Heil, Werner, Kirch, Klaus, Koch, Hans-Christian, Lauss, Bernhard, Mtchedlishvili, Alexander, Pototschnig, Martin, Schmidt-Wellenburg, Philipp, Schnabel, Allard, Pais, Duarte Vicente and Voigt, Jens (2019) PicoTesla absolute field readings with a hybrid 3He/87Rb magnetometer. EPJ direct. ISSN 1435-3725 (Accepted)

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Abstract

We demonstrate the use of a hybrid 3He/87Rb magnetometer to measure absolute magnetic fields in the pT range. The measurements were undertaken by probing time-dependent 3He magnetisation using 87Rb 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 3He T2 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.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Research Centres and Groups: Experimental Particle Physics Research Group
Subjects: Q Science
Q Science > QC Physics
Depositing User: Alice Jackson
Date Deposited: 13 Jun 2019 13:51
Last Modified: 01 Jul 2019 12:45
URI: http://sro.sussex.ac.uk/id/eprint/84230

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Project NameSussex Project NumberFunderFunder Ref
Sussex Experimental Particle Physics 2015 Consolidated GrantG1763STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCILST/N000307/1
STFC - SCIENCE AND TECHNOLOGGY FACILITIES COUNCILUnsetUnsetST/M503836/1