Journal
OPTIK
Volume 176, Issue -, Pages 636-649Publisher
ELSEVIER GMBH
DOI: 10.1016/j.ijleo.2018.09.056
Keywords
Stark broadening; Plasma jet; Optical emission spectroscopy; Plasma diagnostic
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In this work, contribution of all the broadenings in the emission line broadening in atmospheric pressure plasma jets (APPJs) have been determined for the cases of 667 nm and 728 nm lines. By fitting the experimental data with Voigt function, the experimental broadening have been obtained. By calculating Instrumental, Doppler, Resonance and Van Der Waals broadenings, and using experimental broadening, Stark broadening have been obtained. Finally, by using Griem's formula, the electron density and temperature have been determined and the effect of supply power parameters, voltage amplitude, frequency and pulse width, on the lines intensities and Stark broadening and the electron density and temperature have been investigated.
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