DocumentCode
3198934
Title
Dark Current and Multipacting in the Photocathode RF Guns at PITZ
Author
Han, J.H. ; Bahr, J. ; Grabosch, H.-J. ; Krasilnikov, M. ; Miltchev, V. ; Oppelt, A. ; Petrosyan, B. ; Riemann, S. ; Staykov, L. ; Stephan, F. ; Hartrott, M.v. ; Flottmann, K. ; Schreiber, S. ; Ronsch, J. ; Michelato, P. ; Monaco, L. ; Sertore, D.
Author_Institution
DESY, D-15738 Zeuthen, Germany, jang.hui.han@desy.de
fYear
2005
fDate
16-20 May 2005
Firstpage
895
Lastpage
897
Abstract
For photocathode rf guns, the amount of dark current depends on the cavity surface as well as on the photocathodes. Smooth conditioning reduces the amount of dark current. Multipacting in the gun cavity changes the surface status of the cathodes and sometimes obstructs the gun operation because of vacuum interlocks. In this paper, dark current and multipacting features of an rf gun are presented including experimental and simulation studies.
Keywords
Cathodes; Contracts; Current measurement; Dark current; Electron beams; Guns; Prototypes; Pulse measurements; RF signals; Radio frequency;
fLanguage
English
Publisher
ieee
Conference_Titel
Particle Accelerator Conference, 2005. PAC 2005. Proceedings of the
Print_ISBN
0-7803-8859-3
Type
conf
DOI
10.1109/PAC.2005.1590602
Filename
1590602
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