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Supershort avalanche electron beam generation in gases

Published online by Cambridge University Press:  12 November 2008

V.F. Tarasenko*
Affiliation:
High Current Electronics Institute SB RAS, Tomsk, Russia
E.H. Baksht
Affiliation:
High Current Electronics Institute SB RAS, Tomsk, Russia
A.G. Burachenko
Affiliation:
High Current Electronics Institute SB RAS, Tomsk, Russia
I.D. Kostyrya
Affiliation:
High Current Electronics Institute SB RAS, Tomsk, Russia
M.I. Lomaev
Affiliation:
High Current Electronics Institute SB RAS, Tomsk, Russia
D.V. Rybka
Affiliation:
High Current Electronics Institute SB RAS, Tomsk, Russia
*
Address correspondence and reprint requests to: V.F. Tarasenko, High Current Electronics Institute, 2/3, Akademichesky Ave., Tomsk 634055, Russia. E-mail: vft@loi.hcei.tsc.ru

Abstract

This paper reports on the properties of a supershort avalanche electron beam generated in the air or other gases under atmospheric pressure and gives the analysis of a generation mechanism of supershort avalanche electron beam, as well as methods of such electron beams registration. It is reported that in the air under the pressure of 1 atm, a supershort (<100 ps) avalanche electron beam is formed in the solid angle more than 2π steradian. The electron beam has been obtained behind a 45 µm thick Al-Be foil in SF6 and Xe under the pressure of 2 atm, and in He, under the pressure of about 15 atm. It is shown that in SF6 under the high pressure (>1 atm) duration (full width at half maximum) of supershort avalanche electron beam pulse is about 150 ps.

Type
Research Article
Copyright
Copyright © Cambridge University Press 2008

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