A SCHEME FOR A POLARIZED HE-3 ION-SOURCE WITH A RESONANT CHARGE-EXCHANGE PLASMA IONIZER

A scheme for a polarized He-3(2+) ion source based on resonant charge- exchange between polarized He-3 atoms and unpolarized He-4(2+) ions is proposed. Polarized atoms in this scheme are produced by optical pump ing with metastability exchange. The polarized atoms are stored then i n a storage cell. Unpolarized He-4(2+) ions are formed in a separate u npolarized plasma source and are injected into the charge-exchange reg ion in which the polarized He-3(2+) ions are produced by the resonant charge-exchange of the polarized He-3 atoms with the unpolarized He-4( 2+) ions. It is expected that the polarized He-3(2+) ion beam produced in this scheme will have high intensity and polarization.