Polarized 3He2+ ion source based on spin-exchange collisions between 3He+ ion and polarized Rb atoms

A proposal is presented on the polarized 3He ion source based on the spin-exchange collisions of the low-energy 3He+ ion with polarized alkali-metal atoms (Rb) which are optically pumped under the strong magnetic field. To transfer the electron polarization of 3He+ ion to the 3He nucleus, we offer to use the Sona transition based on a non-adiabatic transition method. For efficiently ionizing 3He+ ion to form 3He2+ ion, 3He+ ion is stripped with a gas/foil stripper after accelerating 3He+. As a compact ionizer for polarized 3He+ ions, an EBIS (Electron Beam Ion Source) ionizer operated with a high magnetic field is also proposed.