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Supershort electron beam from air filled diode at atmospheric pressure

Published online by Cambridge University Press:  05 December 2005

V.F. TARASENKO ,
S.A. SHUNAILOV ,
V.G. SHPAK  and
I.D. KOSTYRYA
V.F. TARASENKO
Affiliation:
High Current Electronics Institute Siberian Branch of Russian Academy of Sciences, Tomsk, Russia
S.A. SHUNAILOV
Affiliation:
Institute of Electrophysics the Ural Department of Russian Academy of Sciences, Ekaterinburg, Russia
V.G. SHPAK
Affiliation:
Institute of Electrophysics the Ural Department of Russian Academy of Sciences, Ekaterinburg, Russia
I.D. KOSTYRYA
Affiliation:
High Current Electronics Institute Siberian Branch of Russian Academy of Sciences, Tomsk, Russia
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Abstract

The properties of an electron beam (e-beam) formed in air under atmospheric pressure are reported. The nanosecond generators RADAN-303 (two devices) and RADAN-220, producing nanosecond voltage pulses with amplitude of up to 400 kV and subnanosecond rise time were used in the experiments. It was shown for the first time that the duration of e-beam current of gas diode behind the foil does not exceed 0.1 ns. The maximum amplitude of current of a supershort avalanche electron beam (SAEB) behind the foil was ∼400 A. The data on the influence of various parameters on e-beam current amplitude measured behind the foil were obtained. An electron beam with energy less than 60 keV and powerful X-ray radiation were formed in discharge gap simultaneously with SAEB.

Keywords

Fast electronsRunaway electronsSAEBSubnanosecond e-beam in air
Type
Research Article
Information
Laser and Particle Beams , Volume 23 , Issue 4 , October 2005 , pp. 545 - 551
Copyright
© 2005 Cambridge University Press

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