DocumentCode
2895865
Title
Power tests of a PLD film MG photocathode in a RF gun
Author
Gatti, G. ; Cultrera, L. ; Tazzioli, F. ; Perrone, A. ; Musumeci, P. ; Moody, J.
Author_Institution
INFN/LNF, Frascati
fYear
2007
fDate
25-29 June 2007
Firstpage
995
Lastpage
997
Abstract
Metallic film photo-cathodes are rugged, have a fast response and good emission uniformity. Mg has also a relevant Quantum Efficiency (QE) in the near UV. A cathode suitable for a 1.5 cells S-band RF gun has been produced by depositing an Mg film on Cu by Pulsed Laser Deposition (PLD) technique. After different optimizations, stable good results have been reached in the low field measurement scenario. A sample was deposited on a gun flange and tested in the 1.6 cell injector at UCLA Pegasus facility to prove cathode resistance in a high field environment. The results are described.
Keywords
magnesium; photocathodes; pulsed laser deposition; Mg; Mg film; RF gun; cathode resistance; metallic film photocathodes; pulsed laser deposition technique; Cathodes; Copper; Dark current; Flanges; Optical pulses; Pollution measurement; Pulsed laser deposition; Radio frequency; Substrates; Testing;
fLanguage
English
Publisher
ieee
Conference_Titel
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location
Albuquerque, NM
Print_ISBN
978-1-4244-0916-7
Type
conf
DOI
10.1109/PAC.2007.4440960
Filename
4440960
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