Metastability exchange optical pumping of He at low pressure and high magnetic field
arXiv:2307.04801 · doi:10.1016/j.nima.2023.168792
Abstract
Systematic studies on metastability exchange optical pumping of He nuclei have been performed at Jefferson Lab using a 1-torr sealed cell at magnetic fields from 2 to 4 T. The effects of the discharge intensity, pump laser power, and pumping transition schemes on achievable nuclear polarization and pumping rate have been investigated. A maximum steady-state nuclear polarization of about 75% has been obtained. This work provides a baseline for the development of the novel polarized He target for CLAS12 at Jefferson Lab.
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