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TY - CONF AU - Chen, G. AU - Calabretta, L. AU - Caruso, A.C. AU - Chao, C. AU - Karamyshev, O. AU - Karamysheva, G.A. AU - Liu, G. AU - Long, X.Y. AU - Peng, Z. AU - Shirkov, G. AU - Yu, C.S. AU - Zhang, X. AU - Zhao, Y. ED - Boland, Mark ED - Tanaka, Hitoshi ED - Button, David ED - Dowd, Rohan ED - Schaa, Volker RW ED - Tan, Eugene TI - Commissioning of RF System of the 200 MeV Proton Cyclotron J2 - Proc. of IPAC2019, Melbourne, Australia, 19-24 May 2019 CY - Melbourne, Australia T2 - International Particle Accelerator Conference T3 - 10 LA - english AB - The SC200 superconducting accelerator which is designed for proton therapy is currently under con-struction. The RF (Radio Frequency) system has been designed and constructed as a subsystem of the SC200. To verify the stability of the RF system, a high-power feeding test was performed for the cavity. This paper mainly reports on the overview of RF systems and the prelimary high-power commissioning, as well as the problems found and improvements made during the commissioning process. The results show that the RF system has initially achieved the designed goal, and each loop (amplitude, tuning, phase) can work effec-tively. The cavity can operate in a ~50 kW continuous wave state. Next, the formal RF conditioning will be carried out after the complete assembly of cyclotron, so as to confirm the cavity can run smoothly under 80 kW, which is part of the whole commissioning process. PB - JACoW Publishing CP - Geneva, Switzerland SP - 2877 EP - 2879 KW - cavity KW - cyclotron KW - multipactoring KW - MMI KW - coupling DA - 2019/06 PY - 2019 SN - 978-3-95450-208-0 DO - DOI: 10.18429/JACoW-IPAC2019-WEPRB030 UR - http://jacow.org/ipac2019/papers/weprb030.pdf ER -