TRIUMF optically-pumped polarized H(sup (minus)) ion source

摘要

The TRIUMF dc optically-pumped polarized H(sup (minus)) ion source (OPPIS) produces 200 (micro)A dc H(sup (minus)) current at 85% polarization within a normalized emittance (90%) of 0.8 (pi) mm mrad, for operations at the TRIUMF cyclotron. As a result of development of the ECR primary proton source, 1.6 mA dc polarized H(sup (minus)) current is produced within a normalized emittance of 2 (pi) mm mrad, suitable for high energy accelerators. The OPPIS has also been developed for use in a parity non-conservation experiment which has very severe limits on permissible helicity-correlated changes in beam current and energy.