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TVT, 2013, Volume 51, Issue 2, Pages 163–169 (Mi tvt69)  

This article is cited in 2 scientific papers (total in 2 papers)

Plasma Investigations

Nonequilibrium state of highly ionized helium plasma at atmospheric pressure

E. Kh. Isakaev, V. F. Chinnov, M. A. Sargsyan, D. I. Kavyrshin

Joint Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya ul. 13-2, Moscow, 127412, Russia

Abstract: A spectral study of arc helium plasma of atmospheric pressure with the electron density $n_e\leqslant10^{17} cm^{-3}$ and the ionization degree of $\sim0.25$ is performed. The character of the population of $\mathrm{HeI}$ levels with the excitation energy of $20.96$$24.04$ eV, which indicates infeasibility of the Boltzmann law with the electron temperature $T_e$ for describing the relative population of excited $\mathrm{HeI}$ states, is experimentally determined. Due to the experimentally revealed unfitness of the local thermodynamic equilibrium (LTE) model for estimating $T_e$, mixed contours of the $\mathrm{HeI}$ $1083$ line were divided into the Lorentz and Gaussian components. As a result, both the Stark effect constant that is poorly studied for this line and the temperature of heavy particles $T_g$ in the plasma were estimated based on the Doppler component of its Gaussian half-width. As the arc current varied from $200$ to $400$ A, $T_g$ increased from $20000$ to $25 500$ K, while the increase in the ionization temperature was, in this case, negligible (from $20000$ to $21000$ K).

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English version:
High Temperature, 2013, 51:2, 141–146

Bibliographic databases:

UDC: 535.343
Received: 29.06.2012

Citation: E. Kh. Isakaev, V. F. Chinnov, M. A. Sargsyan, D. I. Kavyrshin, “Nonequilibrium state of highly ionized helium plasma at atmospheric pressure”, TVT, 51:2 (2013), 163–169; High Temperature, 51:2 (2013), 141–146

Citation in format AMSBIB
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\by E.~Kh.~Isakaev, V.~F.~Chinnov, M.~A.~Sargsyan, D.~I.~Kavyrshin
\paper Nonequilibrium state of highly ionized helium plasma at atmospheric pressure
\jour TVT
\yr 2013
\vol 51
\issue 2
\pages 163--169
\mathnet{http://mi.mathnet.ru/tvt69}
\elib{http://elibrary.ru/item.asp?id=18822178}
\transl
\jour High Temperature
\yr 2013
\vol 51
\issue 2
\pages 141--146
\crossref{https://doi.org/10.1134/S0018151X13020090}
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\elib{http://elibrary.ru/item.asp?id=20445690}
\scopus{http://www.scopus.com/record/display.url?origin=inward&eid=2-s2.0-84880662315}


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    Citing articles on Google Scholar: Russian citations, English citations
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    This publication is cited in the following articles:
    1. L. G. D'yachkov, D. I. Kavyrshin, O. V. Korshunov, V. F. Chinnov, “Specific features of the distribution of atomic-level occupancies in highly ionized helium arc plasma”, High Temperature, 56:4 (2018), 605–608  mathnet  crossref  crossref  isi  elib  elib
    2. V. A. Sreckovic, M. S. Dimitrijevic, L. M. Ignjatovic, N. N. Bezuglov, A. N. Klyucharev, “The collisional atomic processes of rydberg hydrogen and helium atoms: astrophysical relevance”, Galaxies, 6:3 (2018), 72  crossref  isi  scopus
  • Teplofizika vysokikh temperatur Teplofizika vysokikh temperatur
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