THE FORMATION OF ELECTRONS BEAMS IN GAS UNDER ATMOSPHERIC PRESSURE

V.A. Shklyaevª, K.P. Artyomov, S.Ya. Belomyttsev, A.A. Grishkov, V.V. Ryzhov, I.Yu. Turchanovsky

Institute of High Current Electronics, Siberian Branch of the Russian Academy of Sciences, Tomsk State University, Tomsk, Russia

Abstract

In this work results of numerically researches of the formation of runaway electrons beam in gas under atmospheric pressure presents. It is showed that runaway electrons beam was formed in highly inhomogeneous electric field near the cathode. This beam consists of electrons emitted from cathode and electrons arising as a result of gas ionization. It was showed that duration of the beam of run-away electrons nearby cathode mainly depend on outer electrical field screening by plasma and was equal to 10÷20 ps. Dynamic of acceleration electrons in gas similar to dynamic of acceleration electrons in vacuum.

ª – corresponding author

Paper 

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