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

We present a conceptual design for a polarized $^3$He target for Jefferson Labs 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 detectors specified maximum luminosity with a beam current of 2.5 $mu A$.