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Coherent transition radiation from REB in plasma ripple

Coherent transition radiation from REB in plasma ripple

DAI Zhi-Min
ZHANG Jin-Song
ZHAO Xiao-Feng
Nuclear Science and TechniquesVol.11, No.1pp.45-51Published in print 01 Feb 2000
25200

The coherent transition-radiation emission from an underdense relativistic beam of electrons, travelling through a dense plasma ripple, was studied. The evolution of this radiation field is described by a set of self-consistent pendulum-wave equations. Analytic calculations of the small-signal gain and numerical computations of the nonlinear saturation of this emission are presented. It is shown that such a device may provide a source of tunable coherent radiation ranging from the microwave to the infrared region.

Transition radiationFree electron laserPlasma
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