Some Techniques for Diagnostics of the Cold Plasma Jet Generated on the Base of the Atmospheric-Pressure Microwave Discharge

S. N. Antipov; Антипов С. Н.; V. M. Chepelev; Чепелев В. М.; M. Kh. Gadzhiev; Гаджиев М. Х.; A. G. Abramov; Абрамов А. Г.; A. V. Ugryumov; Угрюмов А. В.

doi:10.31857/S0367292122601382

Some Techniques for Diagnostics of the Cold Plasma Jet Generated on the Base of the Atmospheric-Pressure Microwave Discharge

Authors: Antipov S.N.¹, Chepelev V.M.¹, Gadzhiev M.K.¹, Abramov A.G.², Ugryumov A.V.²
Affiliations:
1. Joint Institute for High Temperatures, Russian Academy of Sciences
2. TVEL
Issue: Vol 49, No 5 (2023)
Pages: 407-411
Section: LOW TEMPERATURE PLASMA
URL: https://journal-vniispk.ru/0367-2921/article/view/139581
DOI: https://doi.org/10.31857/S0367292122601382
EDN: https://elibrary.ru/VDVXPH
ID: 139581

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Abstract

The atmospheric-pressure cold plasma jet that is a flowing afterglow of the interelectrode microwave discharge in Ar was investigated using various diagnostic techniques. Waveguide-type 2.45-GHz-plasmatron with the external 6-rod-electrode plasma torch was used as the cold plasma source. High-speed shadowgraphy was used to obtain spatio-temporal structure of the cold plasma jet. The periodic character of plasma generation was studied using electric probe floating potential measurements with an oscilloscope.

Keywords

microwave plasmatron, cold plasma jet, flowing afterglow, shadowography, electric probe

References

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