DocumentCode
1876947
Title
CANDELA photo-injector experimental results with a dispenser photocathode
Author
Travier, C. ; Leblond, B. ; Bernard, M. ; Cayla, J.N. ; Thomas, P. ; Georges, P.
Author_Institution
Lab. de l´´Accel. Lineaire, Orsay, France
Volume
2
fYear
1995
fDate
1-5 May 1995
Firstpage
945
Abstract
The CANDELA photo-injector is a two cell S-band photo-injector. The dispenser photocathode is illuminated by a 500 fs pulse from a frequency-tripled Ti:sapphire laser. In this paper we report charge measurements showing that the dispenser photocathode has a quantum efficiency as high as 10-3. This efficiency decreases with a lifetime of 12 hours, but can be recovered by heating the cathode for 5 minutes
Keywords
accelerator RF systems; electron guns; electron sources; particle beam injection; photocathodes; 12 h; 3 GHz; 5 min; 500 fs; CANDELA photo-injector; S-band photo-injector; Ti:Al2O3; charge measurements; dispenser photocathode; frequency-tripled Ti:sapphire laser; lifetime; quantum efficiency; Barium; Calcium; Cathodes; Copper; Heating; Laser modes; Optical pulses; Radio frequency; Springs; Tungsten;
fLanguage
English
Publisher
ieee
Conference_Titel
Particle Accelerator Conference, 1995., Proceedings of the 1995
Conference_Location
Dallas, TX
Print_ISBN
0-7803-2934-1
Type
conf
DOI
10.1109/PAC.1995.505090
Filename
505090
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