Discharge Nuclear Polarization inHe3Gas

We report the existence of substantial polarization effects, apparently involving the $2{}_{}{}^3{}_{}{}^{}S_1^{}{}_{}{}^{}$ metastable state, produced by maintaining a discharge in a ${\mathrm{He}}^3$ sample which is placed in a magnetic field. A polarization of 0.06%, which corresponds to an enhancement of 2200, has been produced at 1 kG. A partially successful theoretical explanation is discussed.