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TVT, 1991, Volume 29, Issue 2, Pages 235–243 (Mi tvt3821)  

Plasma Investigations

Interaction of thermionic electrons with an argon cathode plasma

I. P. Nazarenko, I. G. Panevin, M. K. Tibrina

Moscow Aviation Institute

Abstract: Elastic and inelastic interactions of thermionic electrons with the particles in an atmospheric pressure argon cathode plasma are analyzed. It is shown that for an equilibrium plasma the beam of thermionic electrons is attenuated primarily through elastic collisions with atoms, electrons, and ions in the plasma near the cathode. The contribution of inelastic interactions to the attenuation of the beam is small. In a weakly ionized plasma the elastic scattering of thermionic electrons on atoms predominates. At high temperatures, when $n_e \gtrsim n_a$, the thermionic electrons are primarily scattered on charged particles. It is found that in thermochemically nonequilibrium plasmas with $T_e > 14,000$ K, besides scattering on the plasma electrons, elastic scattering on atoms can make a significant contribution to the attenuation of the beam of thermionic electrons.

Full text: PDF file (1460 kB)

English version:
High Temperature, 1991, 29:2, 173–179

Bibliographic databases:
UDC: 537.521
Received: 01.11.1989

Citation: I. P. Nazarenko, I. G. Panevin, M. K. Tibrina, “Interaction of thermionic electrons with an argon cathode plasma”, TVT, 29:2 (1991), 235–243; High Temperature, 29:2 (1991), 173–179

Citation in format AMSBIB
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\by I.~P.~Nazarenko, I.~G.~Panevin, M.~K.~Tibrina
\paper Interaction of thermionic electrons with an argon cathode plasma
\jour TVT
\yr 1991
\vol 29
\issue 2
\pages 235--243
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\transl
\jour High Temperature
\yr 1991
\vol 29
\issue 2
\pages 173--179
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