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- Title
A high-sensitivity laser-pumped M<sub>x</sub> magnetometer.
- Authors
Groeger, S.; Bison, G.; Schenker, J.-L.; Wynands, R.; Weis, A.
- Abstract
We discuss the design and performance of a laser-pumped cesium vapor magnetometer in the Mx configuration. The device will be employed in the control and stabilization of fluctuating magnetic fields and gradients in a new experiment searching for a permanent electric dipole moment of the neutron. We have determined the intrinsic sensitivity of the device to be 15 fT in a 1 Hz bandwidth, limited by technical laser noise. In the shot noise limit the magnetometer can reach a sensitivity of 10 fT in a 1 Hz bandwidth. We have used the device to study the fluctuations of a stable magnetic field in a multi-layer magnetic shield for integration times in the range of 2–100 seconds. The residual fluctuations for times up to a few minutes are traced back to the instability of the power supply used to generate the field.
- Subjects
MAGNETOMETERS; LASERS; CESIUM; MAGNETIC fields; MAGNETIC instruments
- Publication
European Physical Journal D (EPJ D), 2006, Vol 38, Issue 2, p239
- ISSN
1434-6060
- Publication type
Article
- DOI
10.1140/epjd/e2006-00037-y