Speaker
Mr
Hans-Christian Koch
(University of Mainz / University of Fribourg)
Description
Many experiments in fundamental science, such as the search for the neutron electric dipole moment (nEDM) at PSI, Switzerland, demand an accurate measurement and control of an applied magnetic field. Here, we describe a combined 3He-Cs magnetometer for the absolute measurement of a µT magnetic field with a precision of better than 10^-6. The magnetometer detects the weak oscillating magnetic field produced by the precession of nuclear spin-polarized 3He atoms with phase-feedback driven Cs magnetometers. We will report on measurements in the magnetically shielded room of PTB, Berlin, investigating the performance and intrinsic sensitivity of the combined device.
Primary author
Mr
Hans-Christian Koch
(University of Mainz / University of Fribourg)
Co-authors
Prof.
Antoine Weis
(University of Fribourg)
Prof.
Werner Heil
(Institute of Physics)
