Control of SASE power and enhancement of FEL coherence by plasma wave dilation

Author

Gover, Avraham

Author_Institution

Sch. of Electr. Eng., Dept. of Phys. Electron., Tel-Aviv Univ., Tel Aviv

fYear

2008

fDate

15-19 June 2008

Firstpage

1

Lastpage

1

Abstract

A single transverse mode linear plasma response formulation of a free electron laser (FEL), including space-charge wave interaction, is used to describe the beam and radiation waves dynamics in radiating and non-radiating beam transport sections. This is employed to derive conditions for coherent operation of seeded high gain FELs. It is shown that the level of incoherent self-amplified spontaneous emission (SASE) radiation power can be controlled by adjusting the plasma oscillation phase in non-radiating sections, and that at X-UV wavelengths the theoretical FEL coherence will be ultimately limited only by quantum noise.

Keywords

X-ray lasers; free electron lasers; plasma waves; quantum noise; space charge waves; FEL; SASE power; X-UV free electron lasers; beam dynamics; nonradiating beam transport; plasma wave dilation; quantum noise; radiating beam transport; radiation waves dynamics; self-amplified spontaneous emission; single transverse mode linear plasma response; space-charge wave interaction; Coherence; Electron beams; Free electron lasers; Laser beams; Laser modes; Particle beams; Plasma transport processes; Plasma waves; Quantum mechanics; Spontaneous emission;

fLanguage

English

Publisher

ieee

Conference_Titel

Plasma Science, 2008. ICOPS 2008. IEEE 35th International Conference on

Conference_Location

Karlsruhe

ISSN

0730-9244

Print_ISBN

978-1-4244-1929-6

Electronic_ISBN

0730-9244

Type

conf

DOI

10.1109/PLASMA.2008.4590804

Filename

4590804