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Formation and transportation of low-energy high-current electron beams in the plasma-filled diode under the effect of the external magnetic field

  • Electron and Ion Beams, Accelerators
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Abstract

The mechanisms behind limitation of current of nonrelativistic high-current electron beams in the plasma-filled diode immersed in the external guiding magnetic field whose intensity is comparable with that of the beam self magnetic field are studied. It is shown that the beam current is limited by transmission capacity of the double layer between the cathode and anode plasma on the one hand and, on the other hand, by charge neutralization of the beam and by the decrease of the longitudinal velocity of the beam electrons under the action of the induced electric field and of the beam self magnetic field. The effect of the beam self fields on its cross-sectional current density and energy distributions is studied. Results of the numerical simulations are in good agreement with the experimental data.

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Authors and Affiliations

  1. Tomsk Polytechnical Institute, Tomsk, 634034, Russia

    V. P. Grigor’ev & T. V. Koval’

  2. High Current Electronics Institute, Siberian Division, Russian Academy of Sciences, Tomsk, 634055, Russia

    G. E. Ozur

Authors
  1. V. P. Grigor’ev
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  2. T. V. Koval’
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  3. G. E. Ozur
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Correspondence to V. P. Grigor’ev.

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Original Russian Text © V.P. Grigor’ev, T.V. Koval’, G.E. Ozur, 2010, published in Zhurnal Tekhnicheskoĭ Fiziki, 2010, Vol. 80, No. 1, pp. 103–109.

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Grigor’ev, V.P., Koval’, T.V. & Ozur, G.E. Formation and transportation of low-energy high-current electron beams in the plasma-filled diode under the effect of the external magnetic field. Tech. Phys. 55, 104–110 (2010). https://doi.org/10.1134/S1063784210010172

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  • DOI: https://doi.org/10.1134/S1063784210010172

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