A High-Magnetic-Field Polarized 3He Target for Jefferson Lab’s CLAS12 Spectrometer
- Thomas Jefferson National Laboratory, Newport News, Virginia, U.S.A.
We are developing a polarized 3He target concept for use in high luminosity electron scattering experiments in the high magnetic field environment of Jefferson Lab's CLAS12 spectrometer. By combining recent advancements in metastability exchange optical pumping of 3He with cryogenic, double-cell target methods such as those used for the MIT-Bates 88-02 experiment, a target with polarization and gas density comparable to traditional, low-field polarized 3He targets can be reached within high magnetic fields. We have established a new 3He pumping system at JLab, and are preparing for our first tests exploring polarization performance versus magnetic field and gas pressure in a single cell before we move to the construction of a full, cryogenic, double-cell prototype target.
- Research Organization:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Nuclear Physics (NP)
- DOE Contract Number:
- AC05-06OR23177
- OSTI ID:
- 1972453
- Report Number(s):
- JLAB-PHY-22-3567; DOE/OR/23177-5434
- Resource Relation:
- Conference: Proceedings of the 24th International Spin Symposium (SPIN2021)
- Country of Publication:
- United States
- Language:
- English
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A High-Magnetic-Field Polarized 3He Target for JLab's CLAS12 Spectrometer