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Description
PSC250 is a superconducting synchrocyclotron used for producting 250MeV protons for cancer therapy. It's the first superconducting synchrocyclotron developped by CIM (Hefei CAS Ion Medical and Technical Devices Co., Ltd.) for its advantages in small size and low cost. A new program named CIMSC has been developped especially for beam dynamics calculation in synchrocyclotrons from ion source to extraction region. Some detailed results have been introduced in this article, such as the central region electrodes configuration with a closed ion source, the ratios of captured and lost protons, good centerring of protons, the profiles of RF frequencies vs time and magnetic field vs radius, and so on. Optimal central region for protons with the largest capture ratio and good centering has been designed which will be shown in below text.
