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Teplofizika vysokikh temperatur, 2019, Volume 57, Issue 5, paper published in the English version journal
(Mi tvt11199)
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Papers published in the English version of the journal
Plasma Investigations
Hybrid microwave-DC discharge in nitrogen at reduced pressures
Yu. A. Lebedeva, G. V. Krashevskayaab, A. Yu. Titova, I. L. Epshteina a A. V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Moscow
b National Engineering Physics Institute "MEPhI", Moscow
Abstract:
The hybrid nonuniform microwave-DC discharge in nitrogen at pressure $1$–$15$ Torr is studied by the method optical emission spectroscopy with spatial resolution. Discharge is ignited between the microwave powered antenna and grounded disk electrode placed at the distance of $2.5$ cm from antenna. Antenna was positively biased relative to the grounded electrode. The ratio of the intensities of the nitrogen band at $337$ nm and the emission of the ion band at $391$ nm is used to determine the microwave field strength. Second positive system of nitrogen emission prevails over others in near antenna region. Emission of the first negative nitrogen ion system has the highest intensity near flat electrode. The vibrational distributions of nitrogen molecules and their dependence on direct current and position between antenna and grounded electrode are determined.
Received: 28.02.2019 Revised: 28.02.2019 Accepted: 16.05.2019
Citation:
Yu. A. Lebedev, G. V. Krashevskaya, A. Yu. Titov, I. L. Epshtein, “Hybrid microwave-DC discharge in nitrogen at reduced pressures”, High Temperature, 57:5 (2019), 621–627
Linking options:
https://www.mathnet.ru/eng/tvt11199
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Abstract page: | 182 | References: | 28 |
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