Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8166230 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2018 | 17 Pages |
Abstract
We report on a laser based 199Hg co-magnetometer deployed in an experiment searching for a permanent electric dipole moment of the neutron. We demonstrate a more than five times increased signal to-noise-ratio in a direct comparison measurement with its 204Hg discharge bulb-based predecessor. An improved data model for the extraction of important system parameters such as the degrees of absorption and polarization is derived. Laser- and lamp-based data-sets can be consistently described by the improved model which permits to compare measurements using the two different light sources and to explain the increase in magnetometer performance. The laser-based magnetometer satisfies the magnetic field sensitivity requirements for the next generation nEDM experiments.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
G. Ban, G. Bison, K. Bodek, M. Daum, M. Fertl, B. Franke, Z.D. GrujiÄ, W. Heil, M. Horras, M. Kasprzak, Y. Kermaidic, K. Kirch, H.-C. Koch, S. Komposch, A. Kozela, J. Krempel, B. Lauss, T. Lefort, G. Zsigmond,