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Influence of elementary processes on form of apokampic discharge

  • Institute of High Current Electronics of the Siberian Branch of the Russian Academy of Sciences

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This is a theoretical study of a new form of high-pressure gas discharge burning as a thin jet of plasma is not limited walls. This discharge is called 'apokamp'. A two-dimensional flat model of the discharge is presented when a high-voltage trapezoidal pulse with amplitude of 15 kV and a base duration of 3\ \mu\mathrm{s} is applied to the electrodes. Results of modeling the discharge in an oxygen medium at atmospheric pressure with various rates of elementary processes, such as dissociation of oxygen molecules by electron impact and electron attachment, are presented. The inclusion of only four elementary processes in the theoretical model is sufficient for the formation of the apokamp. The spatial distributions of plasma number density and mean electron energy during the growth of the apokampic jet are obtained. Reduction of the electron attachment rate leads to increasing of the jet propagation velocity, and a decrease in the rate of direct dissociation greatly increases the diameter of the apokampic jet.

Original languageEnglish
Title of host publicationProceedings - 2020 7th International Congress on Energy Fluxes and Radiation Effects, EFRE 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages377-380
Number of pages4
ISBN (Electronic)9781728126869
DOIs
StatePublished - 14 Sep 2020
Externally publishedYes
Event7th International Congress on Energy Fluxes and Radiation Effects, EFRE 2020 - Virtual, Tomsk, Russian Federation
Duration: 14 Sep 202026 Sep 2020

Publication series

NameProceedings - 2020 7th International Congress on Energy Fluxes and Radiation Effects, EFRE 2020

Conference

Conference7th International Congress on Energy Fluxes and Radiation Effects, EFRE 2020
Country/TerritoryRussian Federation
CityVirtual, Tomsk
Period14/09/2026/09/20

Keywords

  • Apokampic discharge
  • Elementary processes
  • Plasma

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