The Effects of Relativistic Warm Plasma Waveguide and High Frequency Electrical Field on Beam-Plasma Interaction

• Authors: Kh. El-Shorbagy
• Languages of publication: EN

Abstracts

EN

The paper is concerned with investigation of the influence of an intense high frequency electric field and relativistic warm plasma waveguide on electrostatic oscillations of nonuniform bounded plasma. The stabilizing effect of a strong high frequency (pump) electrical field on beam-plasma interaction in a cylindrical relativistic warm plasma waveguide is discussed. A new mathematical technique "separation method" was applied to the two-fluid plasma model to separate the equations, which describe the system, into two parts, time and space parts. Plasma electrons are considered to have a relativistic, thermal velocity. It is shown that a high frequency electric field has no essential influence on dispersion characteristics of unstable surface waves excited in a relativistic warm plasma waveguide by a low-density electron beam. The region of instability is only slightly narrowing and the growth rate decreases by a small parameter and this result was reduced comparing to cold, nonrelativistic plasma. Also, it is found that the plasma electrons did not affect the solution of the space part of the problem.

Keywords

EN

52.27.Ny; 52.35.-g; 94.20.wf

Discipline

• 52.35.-g: Waves, oscillations, and instabilities in plasmas and intense beams(see also 94.20.wf Plasma waves and instabilities in physics of the ionosphere; 94.30.cq MHD waves, plasma waves, and instabilities in physics of the magnetosphere; 96.50.Tf MHD waves, plasma waves, turbulence in interplanetary physics)
• 52.27.Ny: Relativistic plasmas
• 94.20.wf: Plasma waves and instabilities

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2007
• Volume: 112
• Issue: 1
• Pages: 41-48

Dates

published

2007-07

received

2007-04-10

(unknown)

2007-05-05

(unknown)

2007-05-15

Contributors

author

Kh. El-Shorbagy

• Plasma Physics and Nuclear Fusion Dept., Nuclear Research Center, Atomic Energy Authority, Cairo, Egypt

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Identifiers

DOI

10.12693/APhysPolA.112.41