Author: Liu, J.F.
Paper Title Page
WEPWO036 Conceptual Design of a Superfluid Superconducting Third Harmonic RF System for the SSRF Storage Ring 2381
  • H.T. Hou, J.F. Liu, Z.T. Zhao
    SINAP, Shanghai, People's Republic of China
  • J.F. Liu
    Shanghai KEY Laboratory of Cryogenics & Superconducting RF Technology, Shanghai, People's Republic of China
  Harmonic cavity can improve the beam quality through bunch size lengthening which includes providing Landau damping, suppressing coupled bunch instability and microwave instability, enhancing the beam current per bunch besides the beam lifetime improvement. A passive third harmonic superconducting cavity operating at super fluid liquid helium has been proposed for the SSRF storage ring with compromise on the required harmonic voltage, limited installation space and dissipated cryogenic power. This paper will mainly present the conceptual design of the harmonic rf system including the requirement of SSRF, a brief review on beam dynamics of harmonic rf system and the harmonic cavity choice.