The TRIUMF high-current DC optically-pumped polarized H/sup -/ ion source

The TRIUMF optically-pumped polarized H/sup -/ ion source (OPPIS) produces in excess of 150 /spl mu/A DC of H/sup -/ ion current at 85% polarization within a normalized emittance of 0.8 pi mm mrad. A 20 /spl mu/A beam was accelerated to 500 MeV through the small acceptance of the injection line and the cyclotron. A feasibility study of higher current production for application to multi-GeV accelerators has been performed. A polarized H ion current of 1.6 mA within a normalized emittance of 2.0 pi mm mrad was obtained after upgrading the ECR primary proton source. The source performance now well exceeds the original design parameters and clearly confirms the potential of the OPPIS technique for other accelerators.