Title :
RF photoinjector in CAEP
Author :
Li Zhenghong ; Hu Kesong ; Li Ming ; Yang Maorong ; Qian Mingquan ; Liu Zhiqiang ; Du Xingshao ; Pan Qing ; Deng Renpei
Author_Institution :
CAEP Inst. of Appl. Electron., Chengdu, China
Abstract :
An RF photoinjector is a type of high-brightness electron beam source. Improved experimental results have been made on the CAEP photoinjector. A 70 A electron beam of 2 MeV energy is made: 10 ps micropulse width of 81.25 MHz repetition and 2.5 /spl mu/s macropulse width of 3 Hz repetition. The system operates stably, and is made up of driving laser, the RF cavity, the vacuum chamber for Cs/sub 2/Te fabrication, high microwave power system, etc. The driving laser is very important in the system: the output of the driving laser can reach 1 /spl mu/J/micropulse at fourth harmonics, and the timing jitter is below 2 ps.
Keywords :
accelerator RF systems; accelerator cavities; electron sources; free electron lasers; optical klystrons; particle beam injection; photocathodes; 2 MeV; 70 A; Faraday cup; RF cavity; RF photoinjector; driving laser; high microwave power system; high-brightness electron beam source; klystron; low timing jitter; macropulse width; micropulse width; vacuum chamber; Electron beams; Laser stability; Masers; Optical device fabrication; Power lasers; Power system harmonics; Radio frequency; Tellurium; Timing jitter; Vacuum systems;
Conference_Titel :
Infrared and Millimeter Waves, 2000. Conference Digest. 2000 25th International Conference on
Conference_Location :
Beijing, China
Print_ISBN :
0-7803-6513-5
DOI :
10.1109/ICIMW.2000.892985
