Speaker
Dr
Weilun Qin
(Deutsches Elektronen Synchrotron (DESY) and Center for Free Electron Science (CFEL))
Description
DC-SRF gun, a DC and superconducting rf (SRF) combined photocathode electron source, has been developed at Peking University for nearly 20 years. Recently, a low-emittance version of DC-SRF gun, DC-SRF-II, was brought into stable CW operation with a DC voltage of 100 kV and an SRF cavity gradient of 13 MV/m, under which condition the dark current was measured to be lower than 0.001 nA. Normalized RMS emittances (with 95% particles) of about 0.5 mm-mrad, 0.85 mm-mrad, and 1.25 mm-mrad have been achieved at the bunch charge of 20 pC, 100 pC, and 260 pC, respectively, and with an electron energy gain of 2 MeV. In this work we will present the detailed results of our latest experiments.
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Primary author
Senlin Huang
(Peking University)
Co-authors
Mr
Dongming Ouyang
(Peking University)
Dr
Fang Wang
(Peking University)
Dr
Fei Jiao
(Peking University)
Dr
Feng Zhu
(Peking University)
Mr
Gai Wang
(Peking University)
Dr
Hang Xu
(Institute of High Energy Physics, CAS)
Mr
Haoyan Jia
(Peking University)
Dr
Huamu Xie
(Peking University)
Prof.
Jiankui Hao
(Peking University)
Mr
Juntao Liu
(Peking University)
Prof.
Kexin Liu
(Peking University)
Mr
Lin Lin
(Peking University)
Ms
Lina Wang
(Peking University)
Mr
Liwen Feng
(Peking University)
Mr
Manqian Ren
(Peking University)
Mr
Sheng Zhao
(Peking University)
Mr
Shengwen Quan
(Peking University)
Mr
Tao Tan
(Peking University)
Mr
Tianyi Li
(Peking University)
Mr
Tianyi Wang
(Peking University)
Ms
Tong Wu
(Peking University)
Dr
Weilun Qin
(Deutsches Elektronen Synchrotron (DESY) and Center for Free Electron Science (CFEL))
Mr
Xiang Zhang
(Peking University)
Mr
Yonglong Zhao
(Peking University)
Ms
Yue Huang
(Peking University)
Mr
Yunqi Liu
(Peking University)
Mr
Zeqin Yao
(Peking University)
Mr
Zhitao Yang
(Peking University)
Ms
Zhongqi Liu
(Peking University)
Mr
Zhongxiang Xu
(Peking University)
Mr
Ziyu Wang
(Peking University)
