Electron Heating by Nonlinear Landau Damping of Electrostatic Waves in an Electron Beam-Plasma System

The large axial inhomogeneity of electron temperature due to nonlinear Landau damping of electrostatic waves (space chargewave and Trivelpiece-Gould mode) in an electron beam-plasma system is occurred. At the same time, inhomogeneity of the space potential is also observed. We evaluate and compare the forces to the plasma electrons from the pressure gradient and the inhomogeneity of the space potential. This suggests that the two forces are balanced and the space potential plays an important role on maintaining the inhomogeneity. Keywords: nonlinear Landau damping, space chargewave, Trivelpiece-Gould mod