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Electron beam relaxation in nonuniform plasma of a steady-state beam-plasma discharge at moderately low gas pressures

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Abstract

Electron beam relaxation in plasma under conditions typical of laboratory plasma devices based on a steady-state beam-plasma discharge was investigated. It is shown that the measured dependences of the beam loss factor in a discharge operating at a moderately low gas pressure disagree with theoretical dependences calculated for a longitudinally uniform plasma. Analytic dependences obtained in the framework of quasilinear theory with allowance for longitudinal plasma inhomogeneity agree with experimental data. Some effects caused by the influence of the main discharge parameters on electron beam relaxation are analyzed.

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Authors and Affiliations

  1. Institute of Nuclear Fusion, Russian Research Centre Kurchatov Institute, p. Kurchatova 1, Moscow, 123182, Russia

    A. A. Serov

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  1. A. A. Serov
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Original Russian Text © A.A. Serov, 2009, published in Fizika Plazmy, 2009, Vol. 35, No. 7, pp. 624–635.

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Serov, A.A. Electron beam relaxation in nonuniform plasma of a steady-state beam-plasma discharge at moderately low gas pressures. Plasma Phys. Rep. 35, 572–582 (2009). https://doi.org/10.1134/S1063780X0907006X

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  • DOI: https://doi.org/10.1134/S1063780X0907006X

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