Technical Physics Letters

, Volume 41, Issue 1, pp 43–45 | Cite as

The role of the ambipolar field and the local approximation inapplicability in determination of the electron distribution function at high pressures

  • K. D. Kapustin
  • M. B. Krasil’nikov
  • A. A. Kudryavtsev


It is demonstrated that the condition for applicability of the local approximation in solving the kinetic equation for electrons includes not only smallness of the electron kinetic relaxation length as compared with the characteristic plasma volume, but also smallness of the ambipolar filed as compared with the current (heating) field. Therefore, at the discharge periphery, where the ambipolar field exceeds the longitudinal one, the local approximation cannot be used for calculating the electron distribution function even at high gas pressures.


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  1. 1.
    L. D. Tsendin, Plasma Sourse Sci. Technol. 4, 200 (1995).CrossRefADSGoogle Scholar
  2. 2.
    A. A. Kudryavtsev, A. S. Smirnov, and L. D. Tsendin, Physics of Glow Discharge Lan’, St. Petersburg, 2010) [in Russian].Google Scholar
  3. 3.
    Yu. P. Raizer, Physics of Gas Discharge (Intellekt, Moscow, 2009) [in Russian].Google Scholar
  4. 4.
    V. Rozhansky and L. D. Tsendin, Transport Phenomena in Partially Ionized Plasma (Taylor & Francis, New York, London, 2001).Google Scholar
  5. 5.
    A. Chirtsov, K. Kapustin, A. Kudryavtsev, and E. Bogdanov, IEEE Trans. Plasma Sci. 39, 2580 (2011).CrossRefADSGoogle Scholar

Copyright information

© Pleiades Publishing, Ltd. 2015

Authors and Affiliations

  • K. D. Kapustin
    • 2
  • M. B. Krasil’nikov
    • 1
  • A. A. Kudryavtsev
    • 1
  1. 1.St. Petersburg State UniversitySt. PetersburgRussia
  2. 2.St. Petersburg State University of Information Technologies, Mechanics, and OpticsSt. PetersburgRussia

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