We offer to your attention a new preprint «Research and Development of the Superconducting Cyclotron SC230 for Proton Therapy» P9-2020-17 published by the JINR Publishing Department. The authors are Karamyshev O. V. et al.

The conceptual design of a compact superconducting cyclotron accelerating the beam of protons to 230 MeV dedicated for proton therapy and medico-biological research is presented.

SC230 is an isochronous four-sector compact cyclotron with a magnetic field in the center of 1.7 T. Superconducting coils will be enclosed in a cryostat, all other parts of the cyclotron are «warm». Acceleration is performed at the fourth harmonic mode of the accelerating radio-frequency system consisting of four resonators located in the cyclotron valleys. The accelerator will use an internal Penning type source with a hot cathode. Extraction is carried out by an electrostatic deflector located in the gap between sectors and two passive magnetic channels.

The investigation has been performed at the Dzhelepov Laboratory of Nuclear Problems

Read the full version (in Russian)

3D model of the cyclotron (magnet and accelerating system)