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The electron temperature in the plasma of a DC discharge created in a supersonic airflow

  • Chemical Physics, Physical Kinetics, and Plasma Physics
  • Published:
Moscow University Physics Bulletin Aims and scope

Abstract

The plasma parameters of a pulsating DC discharge created in a supersonic airflow with a Mach number of M = 2 are determined. It is revealed that along with the intense bands of CN and the molecular nitrogen ion, as well as the spectral lines of atomic oxygen, nitrogen, hydrogen and copper, an intense continuous spectrum is observed in the spectrum of the gas-discharge plasma radiation, which is caused by the deceleration of electrons on ions. The dependences of the electron temperature on the discharge current and longitudinal coordinates are determined. It was revealed that the studied plasma is nonequilibrium, with the electron temperature being much higher than the gas temperature.

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Authors and Affiliations

  1. Department of Physics, Moscow State University, Moscow, 119991, Russia

    V. M. Shibkov, L. V. Shibkova & A. A. Logunov

Authors
  1. V. M. Shibkov
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  2. L. V. Shibkova
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  3. A. A. Logunov
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Corresponding author

Correspondence to V. M. Shibkov.

Additional information

Original Russian Text © V.M. Shibkov, L.V. Shibkova, A.A. Logunov, 2017, published in Vestnik Moskovskogo Universiteta, Seriya 3: Fizika, Astronomiya, 2017, No. 3, pp. 76–82.

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Shibkov, V.M., Shibkova, L.V. & Logunov, A.A. The electron temperature in the plasma of a DC discharge created in a supersonic airflow. Moscow Univ. Phys. 72, 294–300 (2017). https://doi.org/10.3103/S0027134917030109

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  • DOI: https://doi.org/10.3103/S0027134917030109

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