First operation of a thermionic cathode RF gun at NSRRC

Author

Lee, A.P. ; Chang, S.S. ; Hwang, J.Y. ; Lau, W.K. ; Liang, C.C. ; Luo, G.H. ; Yang, T.T.

Author_Institution

NSRRC, Hsinchu

fYear

2007

fDate

25-29 June 2007

Firstpage

1088

Lastpage

1090

Abstract

A high brightness injector is being constructed for light source R&D at NSRRC. This 150 MeV beam injector consists of a 1.5-cell thermionic cathode RF gun with field ratio adjusted to produce a linear energy chirped electron beam for generation of sub-picoseconds electron pulses at GHz repetition rate by using alpha-magnet as low energy bunch compressor. This short bunch beam is planned to drive an experimental pre-bunched THz FEL in the near future. High power microwave processing of the thermionic cathde RF gun up to ~4 MW cavity forward power has been achieved. The first beam from this gun has been obtained.

Keywords

accelerator RF systems; accelerator cavities; electron accelerators; electron beams; electron sources; light sources; linear accelerators; particle beam bunching; particle beam injection; photocathodes; research and development; thermionic cathodes; NSRRC; National Synchrotron Radiation Research Center; R&D; RF gun cavity; alpha-magnet; beam injector; bunch beam; electron beam; electron source; electron volt energy 150 MeV; high power microwave processing; light source; linac; photocathode; thermionic cathode RF gun; Brightness; Cathodes; Current measurement; Electron beams; High power microwave generation; Light sources; Linear particle accelerator; Radio frequency; Research and development; 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.2007.4440991

Filename

4440991