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Title: Two-dimensional simulation of the development of an inhomogeneous volume discharge in a Ne/Xe/HCl gas mixture

Abstract

The kinetic processes accompanying plasma column formation in an inhomogeneous discharge in a Ne/Xe/HCl gas mixture at a pressure of 4 atm were investigated by using a two-dimensional model. Two cathode spots spaced by 0.7 cm were initiated by distorting the cathode surface at local points, which resulted in an increase in the field strength in the cathode region. Three regimes differing in the charging voltage, electric circuit inductance, and electric field strength at the local cathode points were considered. The spatiotemporal distributions of the discharge current; the electron density; and the densities of excited xenon atoms, HCl(v = 0) molecules in the ground state, and HCl(v > 0) molecules in vibrational levels were calculated. The development of the discharge with increasing the electron density from 10{sup 4} to 10{sup 16} cm{sup -3} was analyzed, and three characteristic stages in the evolution of the current distribution were demonstrated. The width of the plasma column was found to depend on the energy deposited in the discharge. The width of the plasma column was found to decrease in inverse proportion to the deposited energy due to spatiotemporal variations in the rates of electron production and loss. The calculated dependences of the cross-sectionalmore » area of the plasma column on the energy deposited in the discharge agree with the experimental results.« less

Authors:
; ;  [1]
  1. Russian Academy of Sciences, Institute of High Current Electronics, Siberian Branch (Russian Federation)
Publication Date:
OSTI Identifier:
22126528
Resource Type:
Journal Article
Resource Relation:
Journal Name: Plasma Physics Reports; Journal Volume: 39; Journal Issue: 5; Other Information: Copyright (c) 2013 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CATHODES; COMPUTERIZED SIMULATION; ELECTRIC DISCHARGES; ELECTRIC FIELDS; ELECTRIC POTENTIAL; ELECTRON DENSITY; GROUND STATES; HYDROCHLORIC ACID; INDUCTANCE; NEON; PLASMA; SPATIAL DISTRIBUTION; TIME DEPENDENCE; TWO-DIMENSIONAL CALCULATIONS; XENON

Citation Formats

Bychkov, Yu. I., E-mail: bych-yu@yandex.ru, Yampolskaya, S. A., and Yastremskii, A. G.. Two-dimensional simulation of the development of an inhomogeneous volume discharge in a Ne/Xe/HCl gas mixture. United States: N. p., 2013. Web. doi:10.1134/S1063780X13050024.
Bychkov, Yu. I., E-mail: bych-yu@yandex.ru, Yampolskaya, S. A., & Yastremskii, A. G.. Two-dimensional simulation of the development of an inhomogeneous volume discharge in a Ne/Xe/HCl gas mixture. United States. doi:10.1134/S1063780X13050024.
Bychkov, Yu. I., E-mail: bych-yu@yandex.ru, Yampolskaya, S. A., and Yastremskii, A. G.. Wed . "Two-dimensional simulation of the development of an inhomogeneous volume discharge in a Ne/Xe/HCl gas mixture". United States. doi:10.1134/S1063780X13050024.
@article{osti_22126528,
title = {Two-dimensional simulation of the development of an inhomogeneous volume discharge in a Ne/Xe/HCl gas mixture},
author = {Bychkov, Yu. I., E-mail: bych-yu@yandex.ru and Yampolskaya, S. A. and Yastremskii, A. G.},
abstractNote = {The kinetic processes accompanying plasma column formation in an inhomogeneous discharge in a Ne/Xe/HCl gas mixture at a pressure of 4 atm were investigated by using a two-dimensional model. Two cathode spots spaced by 0.7 cm were initiated by distorting the cathode surface at local points, which resulted in an increase in the field strength in the cathode region. Three regimes differing in the charging voltage, electric circuit inductance, and electric field strength at the local cathode points were considered. The spatiotemporal distributions of the discharge current; the electron density; and the densities of excited xenon atoms, HCl(v = 0) molecules in the ground state, and HCl(v > 0) molecules in vibrational levels were calculated. The development of the discharge with increasing the electron density from 10{sup 4} to 10{sup 16} cm{sup -3} was analyzed, and three characteristic stages in the evolution of the current distribution were demonstrated. The width of the plasma column was found to depend on the energy deposited in the discharge. The width of the plasma column was found to decrease in inverse proportion to the deposited energy due to spatiotemporal variations in the rates of electron production and loss. The calculated dependences of the cross-sectional area of the plasma column on the energy deposited in the discharge agree with the experimental results.},
doi = {10.1134/S1063780X13050024},
journal = {Plasma Physics Reports},
number = 5,
volume = 39,
place = {United States},
year = {Wed May 15 00:00:00 EDT 2013},
month = {Wed May 15 00:00:00 EDT 2013}
}