Simulation of wall collision relaxation in alkali metal cells for SERF magnetometer
2023 2nd International Conference on Optical Imaging and Measurement (ICOIM)(2023)
Abstract
The measurement of wall collision relaxation in alkali metal cells is of significant for a SERF magnetometer. In this paper, the polarization distribution in the alkali vapor cell and the theoretical values of wall collision relaxation are determined through a combined method on the basis of two distinct simulations. The relaxation in the alkali vapor cell is measured by scanning the magnetic resonance linewidth that provides a comparison between the measured and simulated values of wall collision relaxation. The result shows that the relative error between the actual measurement and simulation is within 10% and a reasonable explanation is derived. This research provides a valuable method for the theoretical calculations of wall collision relaxation.
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Key words
atomic magnetometers,alkali vapor cell,polarization distribution,wall collision relaxation,finite element analysis
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