Pulse length control in an x-ray FEL by using wakefields

Author

Reiche, S. ; Emma, P. ; Pellegrini, C.

Author_Institution

Dept. of Phys. & Astron., California Univ., Los Angeles, CA, USA

Volume

1

fYear

2003

fDate

12-16 May 2003

Firstpage

211

Abstract

For the users of the high-brightness radiation sources of free-electron lasers it is desirable to reduce the FEL pulse length to 10 fs and below for time-resolved pump and probe experiments. Although it can be achieved by conventional compression methods for the electron beam or the chirped FEL pulse, the technical realization is demanding. In this presentation we study the impact of longitudinal wakefields in the undulator and how their properties can be used to reduced the amplifying part of the bunch to the desired length. Methods of actively controlling the wakefields are presented.

Keywords

X-ray lasers; free electron lasers; particle beam bunching; particle beam diagnostics; wakefield accelerators; chirped FEL pulse; electron beam; high-brightness radiation sources; pulse length control; time-resolved pump and probe experiments; undulator; wakefields; x-ray FEL; Chirp; Electron beams; Free electron lasers; Laser excitation; Optical pulses; Probes; Pulse amplifiers; Pulse compression methods; Pump lasers; X-ray lasers;

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.2003.1288881

Filename

1288881