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arXiv · 1911.06650

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

James Maxwell·Richard Milner
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Abstract

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 specified maximum luminosity with a beam current of 2.5 $\mu A$.

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James Maxwell, Richard Milner. 2019-11-15. Conceptual Design of a Polarized 3He Target for the CLAS12 Spectrometer. https://arxiv.org/abs/1911.06650

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