Experimental characterization of the electron source at the Photo Injector Test facility at DESY Zeuthen

Author

Jaeschke, E. ; Kramer, Daniel ; Carneiro, J.-P. ; Flottmann, K. ; Rossbach, J. ; Schreiber, S. ; Bahr, J. ; Bohnet, I. ; Gensch, U. ; Grabosch, H.-J. ; Han, J.H. ; Krasilnikov, M. ; Lipka, D. ; Oppelt, A. ; Stephan, Frank ; Michelato, P. ; Pagani, C. ; Se

Volume

3

fYear

2003

Firstpage

2114

Abstract

The Photo Injector Test facility at DESY Zeuthen (PITZ) was built in order to study the production of high brightness electron beams, which are substantial for the successful operation of free electron lasers (FEL) and linear colliders. The photoinjector at Zeuthen is based on a 1.5-cell L-band rf cavity with coaxial rf coupler equipped with emittance compensating solenoids, a laser capable to generate long pulse trains, an UHV photo cathode exchange system, and various diagnostics tools. The current goal of PITZ is a full characterization of the electron source, which will be installed at the TESLA Test Facility Free Electron Laser (TTF2-FEL) in autumn 2003. In the running periods before the gun is delivered to TTF2-FEL, the rf performance and the beam parameters will be measured in detail. The results presented in this contribution contain the measurements of dark current, driving laser parameters, beam charge, beam size along the facility, transverse emittance, momentum and momentum spread. The electron beam measurements will be presented in comparison with beam dynamics simulations.

Keywords

accelerator RF systems; accelerator cavities; electron beams; electron sources; particle beam diagnostics; particle beam dynamics; particle beam injection; photocathodes; superconducting cavity resonators; DESY Zeuthen; L-band rf cavity; Photo Injector Test facility; UHV photo cathode exchange system; beam charge; beam dynamics simulations; beam parameters; beam size; coaxial rf coupler; dark current; driving laser parameters; electron beam measurements; electron beams; electron source; emittance compensating solenoids; free electron lasers; laser; linear colliders; momentum spread; pulse trains; rf performance; transverse emittance; Brightness; Coaxial components; Electron beams; Electron sources; Free electron lasers; L-band; Laser beams; Optical pulse generation; Production; Test facilities;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the

ISSN

1063-3928

Print_ISBN

0-7803-7738-9

Type

conf

DOI

10.1109/PAC.2003.1288801

Filename

1288801