Status of the Chalk River Superconducting Heavy-Ion Cyclotron

A K = 520 superconducting cyclotron using the Chalk River 13 MV tandem accelerator as an injector is being designed to accelerate all ions from Li (to 50 MeV/u) to U (to 10 MeV/u). The cyclotron will considerably upgrade the Chalk River accelerator facility. The basic design of the cyclotron remains unchanged but details of trim rods, injection and extraction arrangements have changed and other features have become firm. Full scale modelling of the magnet and radiofrequency accelerating system is proceeding concurrently with the cyclotron design; the status of both is reported.