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This article is cited in 9 scientific papers (total in 9 papers)
PLASMA, HYDRO- AND GAS DYNAMICS
Discharge in the atmosphere in a Gaussian beam of subthreshold millimeter waves
K. V. Artem'eva, G. M. Batanova, N. K. Berezhetskayaa, V. D. Borzosekovab, L. V. Kolika, E. M. Konchekovab, I. A. Kossyia, D. V. Malakhovabc, A. E. Petrovab, K. A. Sarksyana, V. D. Stepakhinab, N. K. Kharcheva a Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow, Russia
b Pirogov Russian National Research Medical University, Moscow, Russia
c Moscow Technological University (MIREA), Moscow, Russia
Abstract:
The propagation velocities of a subthreshold discharge excited in air at atmospheric pressure by a pulsed microwave beam with a Gaussian field distribution, a wavelength of $4$ mm, and an intensity up to $30$ kW/cm$^2$ have been measured by means of optical and microwave diagnostics. It has been shown that the motion of a discharge front along the path of the beam toward the region of an increasing microwave field is accompanied by an increase in the velocity from subsonic (${\sim}\,10^4\,$ cm/s) to supersonic (${\sim}\,(6{-}8)\times 10^4\,$ cm/s). At the same time, motion toward the decreasing field region is accompanied by a decrease in the velocity from supersonic to subsonic. It has been found that the maximum temperature of the gas in the discharge at velocities of $\sim 10^4$ cm/s reaches $\sim 5.3$ kK.
Received: 04.12.2017 Revised: 12.12.2017
Citation:
K. V. Artem'ev, G. M. Batanov, N. K. Berezhetskaya, V. D. Borzosekov, L. V. Kolik, E. M. Konchekov, I. A. Kossyi, D. V. Malakhov, A. E. Petrov, K. A. Sarksyan, V. D. Stepakhin, N. K. Kharchev, “Discharge in the atmosphere in a Gaussian beam of subthreshold millimeter waves”, Pis'ma v Zh. Èksper. Teoret. Fiz., 107:4 (2018), 223–226; JETP Letters, 107:4 (2018), 219–222
Linking options:
https://www.mathnet.ru/eng/jetpl5498 https://www.mathnet.ru/eng/jetpl/v107/i4/p223
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Abstract page: | 187 | Full-text PDF : | 31 | References: | 25 | First page: | 9 |
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