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This article is cited in 8 scientific papers (total in 8 papers)
Plasma Investigations
Highly ionized helium arc plasma. Determination of the temperature in nonequilibrium conditions and the effect of plasma microfields
O. V. Korshunov, V. F. Chinnov, D. I. Kavyrshin Joint Institute for High Temperatures, Russian Academy of Sciences, Moscow
Abstract:
Methods are proposed for the spectral measurement of electron temperature $T_e$ in a highly ionized nonequilibrium He plasma at atmospheric pressure based on a comparison of the intensities of atomic and ionic lines with a whole complex of experimental data (primarily, $n_e$). The large energy gap between the emitting $\rm HeI$ and $\rm HeII$ excited levels (of more than $50$ eV) and allowance for the nonequilibrium manifested in the overpopulation of the atomic levels with respect to the ionic levels make it possible to make reliable and simple $T_e$ estimates, especially if the ionization energies of the emitting levels of the atom and the ion are close. For practical use, three pairs of $\rm HeI$ and $\rm HeII$ lines observed in the spectral range of $200$–$1100$ nm are recommended. The radial and temporal (upon the quasistationary pulsed heating of the electric arc plasma) dependences of $T_e$ are obtained in the range of axial values of $3.2$–$4.7$ eV.
Received: 22.05.2018 Revised: 22.05.2018 Accepted: 10.10.2018
Citation:
O. V. Korshunov, V. F. Chinnov, D. I. Kavyrshin, “Highly ionized helium arc plasma. Determination of the temperature in nonequilibrium conditions and the effect of plasma microfields”, TVT, 57:3 (2019), 338–346; High Temperature, 57:3 (2019), 308–315
Linking options:
https://www.mathnet.ru/eng/tvt11054 https://www.mathnet.ru/eng/tvt/v57/i3/p338
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Abstract page: | 246 | Full-text PDF : | 85 | References: | 33 |
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