Corpus ID: 208077035

Conceptual Design of a Polarized 3He Target for the CLAS12 Spectrometer

@article{Maxwell2019ConceptualDO,
  title={Conceptual Design of a Polarized 3He Target for the CLAS12 Spectrometer},
  author={J. Maxwell and R. Milner},
  journal={arXiv: Instrumentation and Detectors},
  year={2019}
}
We present a conceptual design for a polarized $^3$He target for Jefferson Lab's CLAS12 spectrometer in its standard configuration. This two-cell target will take advantage of advancements in optical pumping techniques at high magnetic field to create 60\% longitudinally polarized $^3$He gas in a pumping cell inside the CLAS12 5 T solenoid. By transferring this gas to a 20 cm long, 5 K target cell, a target thickness of $3 \times 10^{21}$ $^3$He/cm$^2$ will be produced, reaching the detector's… Expand
1 Citations
A Concept for Polarized $^3$He Targets for High Luminosity Scattering Experiments in High Magnetic Field Environments
We present the conceptual design of a polarized 3He target to be used for high luminosity scattering experiments within high magnetic field environments. This two-cell target will take advantage ofExpand

References

SHOWING 1-10 OF 14 REFERENCES
A measurement of spin-dependent asymmetries in quasielastic scattering of polarized electrons from polarized helium-3
We report a measurement of the spin-dependent asymmetries AT' and ATL' in 3HIe(e, e') quasielastic scattering at momentum transfer Q2 0.2(GeV/c) 2 and beam energy 370 MeV. The data were acquired atExpand
A bulk superconducting MgB2 cylinder for holding transversely polarized targets
Abstract An innovative solution is being pursued for the challenging magnetic problem of producing an internal transverse field around a polarized target, while shielding out an external longitudinalExpand
A measurement of the spin-dependent asymmetry in quasielastic scattering of polarized electrons from polarized ^3He
The results of a measurement of the spin-dependent asymmetry in inclusive quasielastic scattering of polarized electrons from polarized ^3He are reported. The experiment was run at the MIT-BatesExpand
A Note About Beam Depolarization
Ionizing radiation increases the nuclear spin relaxation in the target chamber. Also known as “beam depolarization,” it is essentially a two step process. First, the beam ionizes an 3He atom whichExpand
Relaxation of gaseous spin-polarized 3He targets due to ionizing radiation.
TLDR
The theory predicts that at low He pressures applying a magnetic field significantly reduces the /sup 3/He depolarization rate due to formation of /sup3/He/sub 2//sup +/ and at high He pressures the relaxation rate decreases with pressure. Expand
Attempts to increase the nuclear relaxation time of a3He gas at low temperatures
In an attempt to increase, at temperatures of a few kelvins, the relaxation time of a dilute3He gas enclosed in spherical Pyrex or pure silica bulbs 3 cm in diameter, we have studied the relaxingExpand
Measurement of the neutron magnetic form factor from inclusive quasielastic scattering of polarized electrons from polarized 3He.
TLDR
This experiment represents the first measurement of the neutron magnetic form factor using spin-dependent electron scattering and the determination of G& at ~ ~ = 0 . Expand
Measurement of the neutron magnetic form factor from inclusive quasielastic scattering of polarized electrons from polarized 3He.
We report a measurement of the asymmetry in spin-dependent quasielastic scattering of longitudinally polarized electrons from a polarized [sup 3]He target. The neutron magnetic form factor [italExpand
Rev
  • Mod. Phys. 89, 045004
  • 2017
Nucl
  • Instr. and Meth. A 274, 56
  • 1989
...
1
2
...