skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Influence of a Nitrogen Admixture on the Anomalous Memory Effect in the Breakdown of Low-Pressure Argon in a Long Discharge Tube

Abstract

The memory effect (the dependence of the dynamic breakdown voltage U{sub b} on the time interval τ between voltage pulses) in pulse-periodic discharges in pure argon and the Ar + 1%N{sub 2} mixture was studied experimentally. The discharge was ignited in a 2.8-cm-diameter tube with an interelectrode distance of 75 cm. The measurements were performed at gas pressures of P = 1, 2, and 5 Torr and discharge currents in a steady stage of the discharge of I = 20 and 56 mA. Breakdown was produced by applying positive-polarity voltage pulses, the time interval between pulses being in the range of τ = 0.5–40 ms. In this range of τ values, a local maximum (the anomalous memory effect) was observed in the dependence U{sub b}(τ). It is shown that addition of nitrogen to argon substantially narrows the range of τ values at which this effect takes place. To analyze the measurement results, the plasma parameters in a steady-state discharge (in both pure argon and the Ar + 1%N{sub 2} mixture) and its afterglow were calculated for the given experimental conditions. Analysis of the experimental data shows that the influence of the nitrogen admixture on the shape of the dependence U{submore » b}(τ) is, to a large extent, caused by the change in the decay rate of the argon afterglow plasma in the presence of a nitrogen admixture.« less

Authors:
 [1]; ;  [2];  [1]
  1. Troitsk Institute for Innovation and Fusion Research (Russian Federation)
  2. St. Petersburg State University (Russian Federation)
Publication Date:
OSTI Identifier:
22763290
Resource Type:
Journal Article
Journal Name:
Plasma Physics Reports
Additional Journal Information:
Journal Volume: 44; Journal Issue: 3; Other Information: Copyright (c) 2018 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 1063-780X
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; AFTERGLOW; ARGON; BREAKDOWN; ELECTRIC POTENTIAL; NITROGEN

Citation Formats

Dyatko, N. A., E-mail: dyatko@triniti.ru, Ionikh, Yu. Z., E-mail: y.ionikh@spbu.ru, Meshchanov, A. V., and Napartovich, A. P. Influence of a Nitrogen Admixture on the Anomalous Memory Effect in the Breakdown of Low-Pressure Argon in a Long Discharge Tube. United States: N. p., 2018. Web. doi:10.1134/S1063780X18030017.
Dyatko, N. A., E-mail: dyatko@triniti.ru, Ionikh, Yu. Z., E-mail: y.ionikh@spbu.ru, Meshchanov, A. V., & Napartovich, A. P. Influence of a Nitrogen Admixture on the Anomalous Memory Effect in the Breakdown of Low-Pressure Argon in a Long Discharge Tube. United States. doi:10.1134/S1063780X18030017.
Dyatko, N. A., E-mail: dyatko@triniti.ru, Ionikh, Yu. Z., E-mail: y.ionikh@spbu.ru, Meshchanov, A. V., and Napartovich, A. P. Thu . "Influence of a Nitrogen Admixture on the Anomalous Memory Effect in the Breakdown of Low-Pressure Argon in a Long Discharge Tube". United States. doi:10.1134/S1063780X18030017.
@article{osti_22763290,
title = {Influence of a Nitrogen Admixture on the Anomalous Memory Effect in the Breakdown of Low-Pressure Argon in a Long Discharge Tube},
author = {Dyatko, N. A., E-mail: dyatko@triniti.ru and Ionikh, Yu. Z., E-mail: y.ionikh@spbu.ru and Meshchanov, A. V. and Napartovich, A. P.},
abstractNote = {The memory effect (the dependence of the dynamic breakdown voltage U{sub b} on the time interval τ between voltage pulses) in pulse-periodic discharges in pure argon and the Ar + 1%N{sub 2} mixture was studied experimentally. The discharge was ignited in a 2.8-cm-diameter tube with an interelectrode distance of 75 cm. The measurements were performed at gas pressures of P = 1, 2, and 5 Torr and discharge currents in a steady stage of the discharge of I = 20 and 56 mA. Breakdown was produced by applying positive-polarity voltage pulses, the time interval between pulses being in the range of τ = 0.5–40 ms. In this range of τ values, a local maximum (the anomalous memory effect) was observed in the dependence U{sub b}(τ). It is shown that addition of nitrogen to argon substantially narrows the range of τ values at which this effect takes place. To analyze the measurement results, the plasma parameters in a steady-state discharge (in both pure argon and the Ar + 1%N{sub 2} mixture) and its afterglow were calculated for the given experimental conditions. Analysis of the experimental data shows that the influence of the nitrogen admixture on the shape of the dependence U{sub b}(τ) is, to a large extent, caused by the change in the decay rate of the argon afterglow plasma in the presence of a nitrogen admixture.},
doi = {10.1134/S1063780X18030017},
journal = {Plasma Physics Reports},
issn = {1063-780X},
number = 3,
volume = 44,
place = {United States},
year = {2018},
month = {3}
}