Measurement of electron temperature in a non-equilibrium discharge of atmospheric pressure supported by focused microwave radiation from a 24 GHz gyrotron | Zendy

S. V. Sintsov | Zendy; A. V. Vodopyanov | Zendy; D. A. Mansfeld | Zendy

Open Access

Measurement of electron temperature in a non-equilibrium discharge of atmospheric pressure supported by focused microwave radiation from a 24 GHz gyrotron

Author(s) -

S. V. Sintsov,

A. V. Vodopyanov,

D. A. Mansfeld

Publication year - 2019

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.5115326

Subject(s) - electron temperature , atmospheric pressure , microwave , gyrotron , plasma , argon , atomic physics , plasma torch , plasma diagnostics , electron , langmuir probe , temperature measurement , atmospheric pressure plasma , plasma parameters , materials science , physics , thermodynamics , meteorology , quantum mechanics

A microwave discharge of atmospheric pressure, maintained by focused CW radiation of a 24-GHz gyrotron in an argon flow in an external air atmosphere, was investigated. The electron temperature was determined by the current-voltage curve of a dual Langmuir probe placed in a plasma torch. The electron temperature was also estimated from plasma emission spectra within the framework of a coronal plasma model. The obtained values of the electron temperature coincide within the measurement accuracy. Also, the electron temperature is many times higher than the gas temperature. This fact allows us to stand of a significantly non-equilibrium atmospheric pressure plasma.

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