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

V. P. Grigor'ev, T. V. Koval', G. E. Ozur

Research output: Contribution to journalArticle

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.

Original languageEnglish
Pages (from-to)104-110
Number of pages7
JournalTechnical Physics
Volume55
Issue number1
DOIs
Publication statusPublished - Jan 2010

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high current
diodes
electron beams
magnetic fields
energy
beam currents
magnetic flux
density distribution
energy distribution
anodes
cathodes
current density
electric fields
simulation

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Formation and transportation of low-energy high-current electron beams in the plasma-filled diode under the effect of the external magnetic field. / Grigor'ev, V. P.; Koval', T. V.; Ozur, G. E.

In: Technical Physics, Vol. 55, No. 1, 01.2010, p. 104-110.

Research output: Contribution to journalArticle

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