Eur. Phys. J. AP 13, 143-145 (2001)
https://doi.org/10.1051/epjap:2001125

Spatial frequency isotropy of an optically pumped ⁴He magnetometer

Centre Interdisciplinaire de Recherche Ions-Lasers, ISMRA (UMR 6637), 6 boulevard Maréchal Juin, 14050 Caen Cedex, France

Corresponding author: gilles@spalp255.ismra.fr

Received: 6 July 2000
Revised: 8 December 2000
Accepted: 8 December 2000
Published online: 15 February 2001

Abstract

Optically pumped magnetometers are scalar magnetometers which are particularly suitable for mobile applications for which it is necessary to use an isotropic sensor. Our group has recently designed a new helium magnetometer with reduced sensor orientation effects. In this paper, we present the results about frequency spatial isotropy and show frequency effects smaller a 240 pT.