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Paper   IPM / Physic / 8065
School of Physics
  Title:   Thermal Effects in the Dissipative Instability of the Electron Beam-Plasma Systems
1.  B. Shokri
2.  S.M. Khorashadizadeh
  Status:   Published
  Journal: Phys. Lett. A
  Vol.:  520-523
  Year:  2006
  Pages:   352
  Supported by:  IPM
The effects of the thermal motion of the charged particles in the dissipative instability of the under and over-limiting currents of a relativistic electron beam in a fully magnetized beam-plasma waveguide is investigated. It is shown that by increasing the temperature of the plasma electrons, the resonant frequency of the waveguide slightly increases and the growth rates of the instability development decreases. In addition, an increase of the temperature of the plasma electron can change the dissipative hydrodynamic instability to the collisionless kinetic instability. Furthermore, the dissipative instability of the overlimiting electron beam is shown to be more sensitive with respect to the electron plasma temperature compared to the underlimiting electron beam case.

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