Analysis of the beam bunching produced by a free electron laser

Journal Article · Fri Nov 01 04:00:00 EST 1996 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.871552· OSTI ID:434730

Gardelle, J; Labrouche, J; Marchese, G; Rullier, J L; Villate, D ^[1]; Donohue, J T ^[2]

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1. CEA/Centre d`Etudes Scientifiques et Techniques d`Aquitaine, BP 2, 33114 Le Barp (France)
2. Centre d`Etudes Nucleaires de Bordeaux-Gradignan, BP 120 33175 Gradignan (France)

A high-power microwave Free Electron Laser (FEL) experiment has been performed to study the inherent electron beam bunching that occurs in the FEL interaction. An induction linac delivered a 1 kA, 2.2 MeV electron beam to a FEL amplifier. In the process of amplifying the input signal of frequency 35 GHz to power levels of the order of 10 MW, the electron beam was bunched by the ponderomotive force. In this paper we describe the FEL experiment and the optical technique that was used to observe the bunches. Their properties as functions of the basic FEL parameters are discussed. {copyright} {ital 1996 American Institute of Physics.}

• OSTI ID: 434730
• Journal Information: Physics of Plasmas, Journal Name: Physics of Plasmas Journal Issue: 11 Vol. 3; ISSN PHPAEN; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
66 PHYSICS
BEAM BUNCHING
ELECTRON BEAMS
FREE ELECTRON LASERS
LINEAR ACCELERATORS
PONDEROMOTIVE FORCE
RELATIVISTIC RANGE
WIGGLER MAGNETS