• J.F. Liu, M. Chen, Z.Q. Feng, Z.C. Fu, H.T. Hou, C. Luo, G.M. Ma, D.Q. Mao, Zh.G. Zhang, S.J. Zhao, Y.B. Zhao
  SINAP, Shanghai
• Z.Y. Ma, H. Yu
  SSRF, Shanghai

RF system for SSRF (Shanghai Synchrotron Radiation Facility) Storage Ring consists of three RF stations, each of which has a klystron, one superconducting RF module and its low level RF feedback control. A 300kW klystron will feed the RF power to the superconducting cavity via a circulator and waveguides. Three CESR type 499.654MHz superconducting modules with tuning range ±150kHz are now in operation. A digitalized I/Q technology based on FPGA is adopted in its low level control. The commissioning and the performance of whole RF system will be described in details in this paper.