Metastability exchange optical pumping of 3He at low pressure and high magnetic field

Systematic studies on metastability exchange optical pumping of 3He nuclei have been performed at Jefferson Lab using a 1-torr sealed cell at magnetic fields from 2 to 4T. The effects of the discharge intensity, pump laser power and pumping transition schemes on achievable nuclear polarization and p...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2023-12, Vol.1057, p.168792, Article 168792
Main Authors: Li, X., Maxwell, J.D., Nguyen, D., Brock, J., Keith, C.D., Milner, R.G., Wei, X.
Format: Article
Language:English
Subjects:
High magnetic field
Metastability exchange optical pumping
OTHER INSTRUMENTATION
Polarized helium-3
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Summary:Systematic studies on metastability exchange optical pumping of 3He nuclei have been performed at Jefferson Lab using a 1-torr sealed cell at magnetic fields from 2 to 4T. 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 3He target for CLAS12 at Jefferson Lab.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2023.168792