Nonlinear Phenomena and Self-Organization Structures in Plasmas

In the examined system the plasma wave is synchronous with the beam. The plasma wave is parametrically coupled with the fast electromagnetic wave (EMW) propagating in the vacuum gap between the plasma boundary and the conductive jacket. The coupling is stimulated by the plasma density periodic inhomogeneity. The second part of this report presents the results of 2.5-dimensional numerical simulation of both the modulation of long relativistic electron bunch (REB) in a plasma and the excitation of wake fields by these bunches. (author)