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Supershort electron beam from air filled diode at atmospheric pressure

Published online by Cambridge University Press:  05 December 2005

High Current Electronics Institute Siberian Branch of Russian Academy of Sciences, Tomsk, Russia
Institute of Electrophysics the Ural Department of Russian Academy of Sciences, Ekaterinburg, Russia
Institute of Electrophysics the Ural Department of Russian Academy of Sciences, Ekaterinburg, Russia
High Current Electronics Institute Siberian Branch of Russian Academy of Sciences, Tomsk, Russia


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.

Research Article
© 2005 Cambridge University Press

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