Nonlinear Landau Electron Heating by Electrostatic Waves in an Electron Beam-Plasma System
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Electron heating due to nonlinear Landau damping of electrostatic waves in an elec-iron beam-plasma system is studied theoretically. The fast and slow space chargewaves of an electron beam and the Trivelpiece-Got.uld modes interact nonlinearly withplasma or beam electrons and cause an effective electron heating and a beam relaxa-lion which leads to a saturation of electron heating. For nonlinear interaction withplasma electrons, the virtual (beat) wave produced by the two electrostatic waves canheat plasma electrons by its electron cyclotron damping. On the other hand, fornonlinear interaction with beam electrons, the Trivelpiece-Gould mode enhanced bynonlinear Landau damping can heat plasma electrons by its electron Landau damp-ing. For both cases, the conservation of total energy flux and the existence of theenergy transport are proved quantitatively.lelectron heating, nonlinear Landau damping, electron beam, virtual wave, lj energy transport, theoryl
- 社団法人日本物理学会の論文
- 1989-05-15
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