A He-3(+) beam with nuclear polarization was produced by passing a fast He-3(+)-ion beam through a thick polarized Rb vapor target in a strong magnetic field. Observed polarization transfer coefficients as a function of the Rb vapor thickness are qualitatively explained by an electron pumping model based on multiple processes of electron capture and stripping. The experimentally obtained polarization and beam current for the He-3(+) beam were, respectively, 0.07 and 2 mu A for a Rb polarization of 0.2. [S1050-2947(99)51111-6]. [References: 6]
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