SAP2014 - List of Authors (Li, M.)

Paper	Title	Page
WEAMH6	Studies on Factors Affecting the Life-Time of High Average Current GaAs Photocathode	12
	D. Wu, K. Li, M. Li, Q. Pan, H. Wang, D.X. Xiao, R.J. Yang, X. Yang CAEP/IAE, Mianyang, Sichuan, People's Republic of China
	The negative electron affinity (NEA) GaAs photocathode has been demonstrated as an important electron source for high average current accelerators, such as the free electron lasers (FELs) based on energy recovery linacs (ERLs). To increase the life-time of NEA-GaAs, some factors are studied in this paper, such as the vacuum pressure around the cathode, the temperature of the cathode surface and the ion back-bombardment inside DC gun. With these studies, some strategies are applied on the photocathode injector of FEL-THz facility in China Academy of Engineering Physics (CAEP). The cathode working life-time has been improved at least two orders of magnitude.

Paper

Title

Page

Studies on Factors Affecting the Life-Time of High Average Current GaAs Photocathode

12

D. Wu, K. Li, M. Li, Q. Pan, H. Wang, D.X. Xiao, R.J. Yang, X. Yang
CAEP/IAE, Mianyang, Sichuan, People's Republic of China

The negative electron affinity (NEA) GaAs photocathode has been demonstrated as an important electron source for high average current accelerators, such as the free electron lasers (FELs) based on energy recovery linacs (ERLs). To increase the life-time of NEA-GaAs, some factors are studied in this paper, such as the vacuum pressure around the cathode, the temperature of the cathode surface and the ion back-bombardment inside DC gun. With these studies, some strategies are applied on the photocathode injector of FEL-THz facility in China Academy of Engineering Physics (CAEP). The cathode working life-time has been improved at least two orders of magnitude.