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Probe measurements in a plasma having an anisotropic electron velocity distribution function

  • Plasma Physics
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Soviet Physics Journal Aims and scope

Abstract

In this paper a number of questions connected with the diagnostics of anisotropic electron velocity distribution functions possessing a drift velocity were examined. In an example involving a model distribution function, the possible errors in measurements of the electron energy distribution function (EEDF) using a cylindrical probe oriented parallel to the particle flow are estimated. It is shown that application of a standard method for treating probe volt-ampere characteristics leads to over- and underestimates relative to the true values of the measured temperatures T +e and T −e , found respectively according to the currents i+(V) and i−(V) on a flat probe, oriented along and against a specific direction. A comparison of calculated T +e +/T −e ratios is made with experimental data.

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Authors and Affiliations

  1. N. P. Ogarev Mordovian State University, Saransk, Mordovian SSR

    A. M. Devyatov & M. A. Mal'kov

Authors
  1. A. M. Devyatov
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  2. M. A. Mal'kov
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Additional information

Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 9, pp. 9–13, September, 1990.

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Devyatov, A.M., Mal'kov, M.A. Probe measurements in a plasma having an anisotropic electron velocity distribution function. Soviet Physics Journal 33, 726–730 (1990). https://doi.org/10.1007/BF00894889

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  • DOI: https://doi.org/10.1007/BF00894889

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