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Super-radiant backward-wave oscillators with enhanced power conversion

2013; American Institute of Physics; Volume: 20; Issue: 2 Linguagem: Inglês

10.1063/1.4769028

1527-2419

В. В. Ростов, А. V. Savilov,

Particle Accelerators and Free-Electron Lasers

We propose a method for a very significant increase of the peak power of a backward-wave electron oscillator operating in the non-stationary regime of the super-radiation of short rf pulses. This method is based on sectioning: a regular self-oscillator section is supported with a section providing amplification of the super-radiant pulse. Profiling of a resonant parameter in the amplifying section is used to avoid the parasitic self-excitation and to increase the efficiency of the electron-wave interaction. In such systems, the conversion factor (the ratio between the rf pulse power and the electron beam power) can achieve a few hundred percent.