Specificity of probe measurements in diffuse plasmas of dense gases in strong electric fields |
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Authors: | Yu. S. Akishev M. A. Medvedev A. P. Napartovich A. V. Petryakov N. I. Trushkin A. G. Shafikov |
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Affiliation: | 1.Troitsk Institute for Innovation and Fusion Research,Troitsk, Moscow,Russia;2.National Research Nuclear University “MEPhI,”,Moscow,Russia |
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Abstract: | The article is devoted to extending the applicability of the probe diagnostics to the range of higher pressures of the plasma-forming gas by taking into account the effect of the probe shadow on the anode. The probe current–voltage characteristic in the diffuse plasma of a dense gas in a strong electric field was measured, and the influence of the probe potential and probe current on the dimensions of the probe shadow on the anode was studied experimentally. The experiments were carried at different currents of a steady-state glow discharge and different velocities of the gas flow through the discharge. The plasma-forming gas was nitrogen at a pressure of P = 100 Torr. |
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