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A High-Magnetic-Field Polarized 3He Target for Jefferson Lab’s CLAS12 Spectrometer

Conference ·
 [1]
  1. Thomas Jefferson National Laboratory, Newport News, Virginia, U.S.A.
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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, 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
Country of Publication:
United States
Language:
English

References (10)

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journal April 2020
The CLAS12 Spectrometer at Jefferson Laboratory
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journal April 2020
A polarized 3He target for nuclear physics
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journal January 1989
A concept for polarized 3He targets for high luminosity scattering experiments in high magnetic field environments
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journal October 2021
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