Manujlenko O. Regular and chaotic dynamics of waves and particles in plasma-beam systems

The thesis is devoted to a problem of development of dynamic chaos (DC) in plasmas and beam systems under wave-wave and wave-particle type of interactions. The criterion of DC development at weak nonlinear interaction of waves is obtained. The chaotic dynamics of decay processes in the series of beam-plasmas systems is investigated. It is shown that the modified decay is stochastic unstable. The possibility of control by charged particles distribution function (in conditions of developed DС under wave-particle type of interaction) is shown. The conditions of "unlimited" stochastic acceleration of charged particles by the regular electromagnetic wave in the external magnetic field are found. It is shown, that at autoresonance the stochastic instability does not developed. The excitation of oscillations in the short slow wave resonator by electron beam and stochastization of oscillations in magnetized beam-plasma waveguide under the action of the external monochromatic field are investigated.