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@article{711653,
author = {Navrátil, Zdeněk and Trunec, David and Hrachová, Věra and Kaňka, Adolf},
article_location = {Bristol, England},
article_number = {4},
keywords = {collisional-radiative model; neon discharge; optical emission spectroscopy},
language = {eng},
issn = {0022-3727},
journal = {Journal of Physics D: Applied Physics},
title = {Collisional radiative model of neon discharge: determination of E/N in the positive column of low pressure discharge},
url = {http://stacks.iop.org/0022-3727/40/1037},
volume = {40},
year = {2007}
}
TY - JOUR
ID - 711653
AU - Navrátil, Zdeněk - Trunec, David - Hrachová, Věra - Kaňka, Adolf
PY - 2007
TI - Collisional radiative model of neon discharge: determination of E/N in the positive column of low pressure discharge
JF - Journal of Physics D: Applied Physics
VL - 40
IS - 4
SP - 1037-1046
EP - 1037-1046
PB - IOP Publishing Ltd.
SN - 00223727
KW - collisional-radiative model
KW - neon discharge
KW - optical emission spectroscopy
UR - http://stacks.iop.org/0022-3727/40/1037
N2 - A method for the determination of the reduced electric field strength (E/N) in a neon discharge from the optical emission spectra was developed. This method is based on a collisional radiative model, which was used to calculate the emission spectra of the neon plasma. In the model, populations of 30 excited levels of the neon atom were studied. Various elementary collision processes were taken into account: electron impact excitation, de excitation and ionization of neon atoms, emission and absorption of radiation, metastable metastable collisions, metastable and radiative dimer production, Penning ionization, etc. To determine the rates of electron collisions, the Boltzmann kinetic equation for the electron distribution function (EDF) was solved for given E/N, and thus the dependence of the emission spectra on E/N could be determined. The EDF was expanded in terms of Legendre polynomials and the first two terms of this approximation were taken into account. The theoretical emission spectra were fitted by the non linear least squares method to the measured spectra with respect to the unknown parameter E/N. The method was applied to the study of low pressure dc glow discharge in neon. In such a discharge the calculated reduced electric field strength could be compared with the independent results of simultaneously performed electric probe measurements of E/N. Generally, close agreement of the calculated values with the experimental data was achieved.
ER -
NAVRÁTIL, Zdeněk, David TRUNEC, Věra HRACHOVÁ and Adolf KAŇKA. Collisional radiative model of neon discharge: determination of E/N in the positive column of low pressure discharge. \textit{Journal of Physics D: Applied Physics}. Bristol, England: IOP Publishing Ltd., 2007, vol.~40, No~4, p.~1037-1046. ISSN~0022-3727.
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