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Title: Spectroscopic study of high energy excited deuterium atoms in a hollow cathode glow discharge

Abstract

The presented results are concerned with the shape of the Balmer alpha line emitted from a low pressure dc glow discharge with stainless steel (SS) and titanium (Ti) hollow cathode (HC) with D{sub 2} or Ar/D{sub 2}/H{sub 2} gas mixture. The analysis indicates that the line profile represents a convolution of three Gaussian profiles resulting from different collision excitation processes. The average energy of excited deuterium atoms determined from the width of the broadest Gaussian is about 86 eV in both HCs. In Ar/D{sub 2}/H{sub 2} gas mixtures, the energies are in the range from 33 eV to 47 eV, but with much larger contribution of this Gaussian to the Balmer alpha profile. In discharges with hydrogen isotopes, the energy derived from the medium-width Gaussian is in the range from 4 eV to 6 eV, while in gas mixtures it is between 1 eV and 2 eV. The width of the narrowest Gaussian slightly exceeds the instrumental broadening and it is always below 0.5 eV.

Authors:
; ;  [1];  [2]
  1. Military Academy, 11105 Belgrade, Generala Pavla Jurisica-Sturma 33 (Serbia)
  2. (Serbia)
Publication Date:
OSTI Identifier:
20974949
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 14; Journal Issue: 4; Other Information: DOI: 10.1063/1.2721077; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ARGON; ATOMS; COLLISIONS; DEUTERIUM; EMISSION; EXCITATION; EXCITED STATES; GLOW DISCHARGES; HOLLOW CATHODES; HYDROGEN; LINE BROADENING; MIXTURES; PLASMA; PLASMA DIAGNOSTICS; STAINLESS STEELS; TITANIUM; WIDTH

Citation Formats

Majstorovic, G. Lj., Sisovic, N. M., Konjevic, N., and Faculty of Physics, University of Belgrade, 11001 Belgrade, P.O. Box 368. Spectroscopic study of high energy excited deuterium atoms in a hollow cathode glow discharge. United States: N. p., 2007. Web. doi:10.1063/1.2721077.
Majstorovic, G. Lj., Sisovic, N. M., Konjevic, N., & Faculty of Physics, University of Belgrade, 11001 Belgrade, P.O. Box 368. Spectroscopic study of high energy excited deuterium atoms in a hollow cathode glow discharge. United States. doi:10.1063/1.2721077.
Majstorovic, G. Lj., Sisovic, N. M., Konjevic, N., and Faculty of Physics, University of Belgrade, 11001 Belgrade, P.O. Box 368. Sun . "Spectroscopic study of high energy excited deuterium atoms in a hollow cathode glow discharge". United States. doi:10.1063/1.2721077.
@article{osti_20974949,
title = {Spectroscopic study of high energy excited deuterium atoms in a hollow cathode glow discharge},
author = {Majstorovic, G. Lj. and Sisovic, N. M. and Konjevic, N. and Faculty of Physics, University of Belgrade, 11001 Belgrade, P.O. Box 368},
abstractNote = {The presented results are concerned with the shape of the Balmer alpha line emitted from a low pressure dc glow discharge with stainless steel (SS) and titanium (Ti) hollow cathode (HC) with D{sub 2} or Ar/D{sub 2}/H{sub 2} gas mixture. The analysis indicates that the line profile represents a convolution of three Gaussian profiles resulting from different collision excitation processes. The average energy of excited deuterium atoms determined from the width of the broadest Gaussian is about 86 eV in both HCs. In Ar/D{sub 2}/H{sub 2} gas mixtures, the energies are in the range from 33 eV to 47 eV, but with much larger contribution of this Gaussian to the Balmer alpha profile. In discharges with hydrogen isotopes, the energy derived from the medium-width Gaussian is in the range from 4 eV to 6 eV, while in gas mixtures it is between 1 eV and 2 eV. The width of the narrowest Gaussian slightly exceeds the instrumental broadening and it is always below 0.5 eV.},
doi = {10.1063/1.2721077},
journal = {Physics of Plasmas},
number = 4,
volume = 14,
place = {United States},
year = {Sun Apr 15 00:00:00 EDT 2007},
month = {Sun Apr 15 00:00:00 EDT 2007}
}
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