Microwave Diagnostic Complex for Cold Atmospheric Plasma Jets

A system for microwave diagnostics of low-temperature non-stationary atmospheric plasma jets is proposed, the principle of operation of which is based on the registration of changing in the quality factor of the main mode of the electric type of a cylindrical microwave cavity resonator. The time dep...

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Bibliographic Details
Published in:Optics and spectroscopy 2024-03, Vol.132 (3), p.203-206
Main Authors: Astafiev, A. M., Altmark, A. M., Lesiv, N. A., Chirtsov, A. S.
Format: Article
Language:English
Subjects:
Cavity resonators
Cylindrical plasmas
Electric potential
Lasers
Low temperature
Optical Devices
Optics
Photonics
Physics
Physics and Astronomy
Plasma jets
Voltage
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Summary:A system for microwave diagnostics of low-temperature non-stationary atmospheric plasma jets is proposed, the principle of operation of which is based on the registration of changing in the quality factor of the main mode of the electric type of a cylindrical microwave cavity resonator. The time dependences of the average volumetric conductivity of a plasma jet of a barrier discharge in a helium flow are measured. The discharge was powered from an alternating voltage source with a frequency of 9 kHz. Such a low frequency of the supply voltage made it possible to distinguish individual pulses of breakdowns of the barrier discharge.
ISSN:0030-400X
1562-6911
DOI:10.1134/S0030400X24030019