“School of Particles And Accelerator”
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Paper IPM / Particles And Accelerator / 12926  


Abstract:  
A numerical simulation in onedimension is conducted to study the twobeam 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.
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