Thermal effect on prebunched two-beam free electron laser

A numerical simulation in one-dimension is conducted to study the two-beam free electron laser. The fundamental resonance of the fast electron beam coincides with the fifth harmonic of the slow electron beam in order to generate extreme ultraviolet radiation. Thermal effect in the form of the longit...

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Bibliographic Details
Published in:Physics of plasmas 2013-08, Vol.20 (8)
Main Authors: Mirian, N. S., Maraghechi, B.
Format: Article
Language:English
Subjects:
Beams (radiation)
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
COMPUTERIZED SIMULATION
DISTRIBUTION FUNCTIONS
ELECTRON BEAMS
EXTREME ULTRAVIOLET RADIATION
FREE ELECTRON LASERS
Harmonics
LENGTH
Mathematical models
PHASE SPACE
Plasmas
Saturation
TRAPPED ELECTRONS
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Summary:A numerical simulation in one-dimension is conducted to study the two-beam free electron laser. The fundamental resonance of the fast electron beam coincides with the fifth harmonic of the slow electron beam in order to generate extreme ultraviolet radiation. Thermal effect in the form of the longitudinal velocity spread is included in the analysis. In order to reduce the length of the wiggler, prebunched slow electron beam is considered. The evaluation of the radiation power, bunching parameter, distribution function of energy, and the distribution function of the pondermotive phase is studied. Sensitivity of the power of the fifth harmonic to the jitter in the energy difference between the two beams is also studied. A phase space is presented that shows the trapped electrons at the saturation point.
ISSN:1070-664X
1089-7674
DOI:10.1063/1.4817025