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- Title
Discharge in the Atmosphere in a Gaussian Beam of Subthreshold Millimeter Waves.
- Authors
Artem’ev, K. V.; Batanov, G. M.; Berezhetskaya, N. K.; Borzosekov, V. D.; Kolik, L. V.; Konchekov, E. M.; Kossyi, I. A.; Malakhov, D. V.; Petrov, A. E.; Sarksyan, K. A.; Stepakhin, V. D.; Kharchev, N. K.
- 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/cm2 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 (~10-4 cm/s) to supersonic (~(6-8) × 104 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 ~104 cm/s reaches ~5.3 kK.
- Subjects
GAUSSIAN beams; MILLIMETER waves; ATMOSPHERIC pressure; LASER beams; GLOW discharges
- Publication
JETP Letters, 2018, Vol 107, Issue 4, p219
- ISSN
0021-3640
- Publication type
Article
- DOI
10.1134/S0021364018040045