ISAC-I and ISAC-II at TRIUMF: Achieved Performance and New Construction

ISAC-I at TRIUMF is now delivering intense beams of both low energy and accelerated radioactive ion beams (RIBs) for experiments. The post-accelerator for ISAC-I includes a room temperature RFQ and DTL operating cw to accelerate ions of A ≤ 30 to a final energy fully variable from 0.153 to 1.53MeV/u. The design concept, machine status and early operating experience of the ISAC-I linear accelerator complex will be summarized. TRIUMF has received funding through to 2005 to proceed with an extension to the ISAC facility, ISAC-II, to permit acceleration of radio-active ion beams above the Coulomb Barrier for masses up to 150. Central to the addition are a ECR charge state booster before the ISAC RFQ and a superconducting heavy ion linac. The accelerator design and present status of the project including superconducting rf developments will be presented.