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On formation of subnanosecond electron beams in air under atmospheric pressure

Published online by Cambridge University Press:  01 March 2004

V.F. TARASENKO ,
V.S. SKAKUN ,
I.D. KOSTYRYA ,
S.B. ALEKSEEV  and
V.M. ORLOVSKII
V.F. TARASENKO
Affiliation:
High Current Electronics Institute Siberian Branch of Russian Academy of Sciences, Tomsk, Russia
V.S. SKAKUN
Affiliation:
High Current Electronics Institute Siberian Branch of Russian Academy of Sciences, Tomsk, Russia
I.D. KOSTYRYA
Affiliation:
High Current Electronics Institute Siberian Branch of Russian Academy of Sciences, Tomsk, Russia
S.B. ALEKSEEV
Affiliation:
High Current Electronics Institute Siberian Branch of Russian Academy of Sciences, Tomsk, Russia
V.M. ORLOVSKII
Affiliation:
High Current Electronics Institute Siberian Branch of Russian Academy of Sciences, Tomsk, Russia
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Abstract

This article reports on experimental studies of subnanosecond electron beams formed in air under atmospheric pressure. An electron beam with an amplitude of ∼170 A with a duration at FWHM of ∼0.3 ns has been obtained. Based on beam temporal characteristics and discharge spatial characteristics, the critical fields were supposed to be reached at plasma approach to anode. Simultaneously, the sharp high-energy pulse of e-beam current is generated. Of critical importance is the cathode type and occurrence on the cathode of plasma protrusions. It is shown that to get maximum amplitude of the electron beam in the gas diode, the discharge in the gas diode should be volumetric.

Keywords

Atmospheric pressureRunaway electronsSubnanosecond e-beam in air
Type
Research Article
Information
Laser and Particle Beams , Volume 22 , Issue 1 , March 2004 , pp. 75 - 82
Copyright
2004 Cambridge University Press

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References

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