IBA-JINR 400 MEV/U SUPERCONDUCTING CYCLOTRON FOR HADRON THERAPY

Abstract

The compact superconducting isochronous cyclotron C400 [[1, 2, 3, 4] has been designed by the IBA-JINR collaboration. It will be the first cyclotron in the world capable of delivering protons, carbon and α ions for cancer treatment. The cyclotron construction will start probably this year within the framework of the ARCHADE project [5] (Caen, France). 12C6+ and 4He2+ ions will be accelerated to 400 MeV/u and extracted by the electrostatic deflector. H2 + ions will be accelerated to the energy of 265MeV/u and extracted by stripping. The magnet yoke has a diameter of 6.6 m; the total weight of the magnet is about 700 t. The designed magnetic fields are 4.5 T and 2.45 T respectively in the hills and in the valleys. Superconducting coils will be enclosed in a cryostat. All other parts and subsystems of the cyclotron will be warm. Three external ion sources will be mounted on the switching magnet on the axial injection line located below the cyclotron. The main parameters of the cyclotron, its design, the current status of the development work on the cyclotron systems are presented.IMP;Chinese Academy of Science