The Influence of Molecular Gas on the Apokamp Discharge Formation

Kuznetsov, V. S.; Соснин, Э. А.; Панарин, В. А.; Skakun, V. S.; Тарасенко, В. Ф.

doi:10.1134/s0030400x18090175

Cited by 7 publications

(5 citation statements)

References 18 publications

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“…In our experiments, in order to obtain high-quality photographs and radiation spectra, it is necessary to accumulate data for several thousand pulses. Previously, a similar technique was used to study the properties of apocampic discharge in various gases [16,17], as well as streamer discharge in air [18,19].…”

Section: Experimental Setup and Measurement Techniquesmentioning

confidence: 99%

“…Therefore, along with the study of sprites, blue jets and other TLP in natural conditions, attempts are being made to simulate these phenomena in laboratory conditions. Various types of electric gas discharges are used for this, including glow [15] and apocampic [16,17]. In [15], it was reported that a glow discharge with a positive red column was ignited between two electrodes in a transparent tube filled with air at p = 1.2 Torr.…”

Section: Introductionmentioning

confidence: 99%

“…The color of the discharge was determined by the radiation of the bands of the first positive (1+) molecular nitrogen system N 2 in the wavelength range λ = 500−900 nm. Blue jets were simulated in [16,17] (bluejet [6,10]). In the works cited above, two electrodes with a small radius of curvature were placed inside a quartz tube at a distance of 1 cm relative to each other.…”

Section: Introductionmentioning

confidence: 99%

“…1 in [10]) there are no metal electrodes. Thus, the conditions under which the discharges were ignited in [15][16][17] are far from real for TLP. Therefore, in this work, as in recent works [18,19], a barrier pulseperiodic discharge was used to create a plasma initiating a phenomenon similar to atmospheric.…”

Section: Introductionmentioning

confidence: 99%

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Emission spectra of low-pressure air during a diffuse streamer discharge

V.F.

Kh.

Vinogradov

et al. 2022

Optics and Spectroscopy

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Attention to the study of the radiation characteristics of streamer discharges in atmospheric air at pressures of a fraction of a Torr unit is primarily associated with obtaining new data on high-altitude discharges, including red sprites. This paper presents the results of studying the characteristics of the radiation of a streamer discharge in low-pressure air upon initiation of ionization waves (streamers) by a repetitively pulsed barrier discharge. It has been established that at air pressures of Delta p=0.08-3 Torr, the lines of the second positive, first negative, and first positive nitrogen systems have the highest intensities in the wavelength range of Deltaλ=280-900 nm, and their contribution to the spectral radiation energy density depends on the discharge region and pressure. The emission bands of the first positive nitrogen system give the red color of the ionization waves, however, the highest intensities under these conditions are recorded on the lines of the second positive and first negative nitrogen systems. It is shown that when the pressure decreases to 0.04 Torr or less, the spectrum and color of the streamer discharge, while maintaining the amplitude of the voltage pulses, changes significantly. New lines and bands appear in it, including intense lines of atomic hydrogen, which is due to an increase in the reduced electric field strength, respectively, in the electron temperature. This leads to the dissociation of molecular gases that are part of the air, as well as those adsorbed by the chamber walls. Keywords: emission spectra, streamer discharge, air, low pressures.

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Section: Experimental Setup and Measurement Techniquesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Emission spectra of low-pressure air during a diffuse streamer discharge

V.F.

Kh.

Vinogradov

et al. 2022

Optics and Spectroscopy

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“…Apokamp discharges were also experimentally obtained in various gas mixtures other than air (Ar-CO 2 , Kr-N 2 , Xe-Cl 2 , Kr-Cl 2 ) at pressures below atmospheric [3]. The decrease of the molecular gas admixture deprives jet stability and leads to the transition from jet to volume discharge form.…”

mentioning

confidence: 99%

Apokamp-type gas discharge phenomenon: Experimental and theoretical backgrounds

Kozhevnikov

Kozyrev

Kokovin

et al. 2020

EPL

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The apokamp discharge is an atmospheric pressure plasma jet generating from the bending point of the discharge channel between high-voltage and floating potential electrodes. The jet propagates perpendicularly to the interelectrode discharge channel for several centimetres without gas convection. Based on the simplified plasma-chemical model of the discharge, a theoretical explanation of the apokamp phenomenon was obtained for the first time. It is shown that the apokamp is a stable plasma quasi-jet formed by the positive streamer mechanism.

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