Design Studies of the Compact Superconducting Cyclotron for Hadron Therapy

The last years have seen increasing interest in particle therapy based on 12C6+ ions. In order to respond to this market situation, a C400 dedicated Carbon/Proton therapy cyclotron has been designed at IBA (Belgium) in collaboration with the JINR (Dubna) [1]. An overview of the current status of the design of the C400 cyclotron able to deliver ion beams with a charge to mass ratio of 1/2 is given. This cyclotron is based on the design of the current PT (proton therapy) C235 cyclotron and will be used for radiotherapy with proton, helium or carbon ions. 12C6+ and 4He2+ ions will be accelerated to the energy 400 MeV/u and extracted by an electrostatic deflector, H2+ ions will be accelerated to the energy 260MeV and extracted by stripping. Computer modeling results for the axia