,Design and testing of an internal hot-cathode-type PIG ion source for superconducting cyclotron

• 作 者: Shi-Wen Xu Yun-Tao Song Gen Chen Yu-Qian Chen Liu-Si Sheng Man-Man Xu Oleg Karamyshev Galina Karamysheva Grigori Shirkov
• 机 构: University of Science and Technology of China, No. 443 Huang Shan Road, Hefei 230026, China“,”Instit
• 出 处: 核技术（英文版）
• 发表日期: 2019年6期
• 关键词: Cyclotrons Ion source Test bench Simulation

The superconducting cyclotron SC200 is inten-ded to generate a 200 MeV, 400 nA proton beam for future particle therapy. The inteal hot-cathode-type Penning ionization gauge (PIG) ion source for the SC200 is designed for the generation of hydrogen ions. A brief description of the design of ion source and test bench, which are used in SC200, is given in this paper. The ion source has been verified on the test bench, and the results indicated that the designed ion source meets the expected requirements. The lifetime of the filament exceeded 100 h in the test. In addition, the extraction voltage and the gas flow that influence the extracted ion current intensity have been tested in the experiment.