Research and Development of the SC230 Superconducting Cyclotron for Proton Therapy

Abstract

This paper presents a conceptual design of the compact SC230 superconducting cyclotron that accelerates a beam of protons to 230 MeV and is intended for proton therapy and biomedical research. SC230 is an isochronous four-sector cyclotron based on a shell-type magnet 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 carried out at the fourth harmonic mode of the accelerating high-frequency (HF) system consisting of four resonators located in the cyclotron valleys. The accelerator employs an internal Penning-type hot cathode source. Extraction is carried out using an electrostatic deflector located in the gap between the sectors and two passive magnetic channels.

Particle Accelerators and Gamma-therapeutic Devices - an Effective Tool for Cancer Treatment

“…To date, there are 71 proton therapy centers in the world, 44 ones are under construction, and it is planned to build 21 more centers in the near future [18]. Linear accelerators, cyclotrons, synchrotrons, synchrocyclotron, as well as superconducting synchrocyclotron, synchrotrons, and cyclotrons can be used to obtain beams of protons and ions (see, for example, [19]). However, linear accelerators have not found wide practical application due to their large length.…”