Speaker
Xiaowei Wu
(Zhangjiang Laboratory)
Description
1.3 GHz 3-cell superconducting cavities were proposed for the injector of the high-brightness free electron laser based on energy recovery linac scheme. The average beam current is 10 mA and injector energy is 10 MeV. The beam tube of the cavity is enlarged to damp higher-order modes (HOMs) and to keep beam stability. Three cavities have been fabricated. An intrinsic quality factor of 2.0 × 10¹⁰ at 12.0 MV/m and a maximum accelerating gradient of 26.0 MV/m were achieved in the vertical test of the first bare cavity. Design, fabrication, surface treatment, and rf test results will be presented in this paper.
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Author
Xiaowei Wu
(Zhangjiang Laboratory)
Co-authors
Dong Wang
(Shanghai Advanced Research Institute)
Haixiao Deng
(Shanghai Advanced Research Institute)
Jinfang Chen
(Shanghai Advanced Research Institute)
Meng Zhang
(Shanghai Advanced Research Institute)
ShenJie Zhao
(Shanghai Advanced Research Institute)
Xuan Huang
(Shanghai Institute of Applied Physics)
Yue Zong
(Shanghai Advanced Research Institute)
Zheng Wang
(Shanghai Institute of Applied Physics)
