Speaker
Zipeng Liu
(Shanghai Synchrotron Radiation Facility)
Description
RF electron guns can produce higher quality electron beams due to their high accelerating gradients, and semiconductor photocathodes have higher quantum efficiencies. However, the thermionic emission of the material can affect the beam emittance. Therefore, it is necessary to develop cathodes with lower thermionic emission, and to measure the thermionic emission, especially under high power conditions, in order to iteratively optimize the cathode fabrication process. This paper mainly focuses on the study of thermionic emission measurement based on a VHF electron gun.
Authors
Guan Shu
(Institute of High Energy Physics)
Haixiao Deng
(Shanghai Institute of Applied Physics)
Houjun Qian
(Deutsches Elektronen-Synchrotron DESY at Zeuthen)
Xudong Li
(Shanghai Synchrotron Radiation Facility)
Zipeng Liu
(Shanghai Synchrotron Radiation Facility)
Co-author
Zenggong Jiang
(Shanghai Advanced Research Institute)
