Spatial evolution of a complex signal in a beam-plasma system
Abstract
The spatial interaction of an electron beam with several slow waves of different multiple frequencies of a plasma waveguide subjected to a sufficiently strong constant magnetic field acting along the waveguide axis is studied. It is shown that in the range of RF power saturation of fundamental wave, waves of combined frequencies are excited and grow in space. This effect leads to the distortion and widening of the original spectrum mostly toward the region of high frequencies. The velocity distribution curve of the beam electrons during excitation of a wide range of discrete frequencies is shown to be of a multihump nature.
- Publication:
-
Soviet Physics Technical Physics
- Pub Date:
- 1976
- Bibcode:
- 1976SPTP...20.1567R