Shift and broadening of sodium nS-3P and mD-3P transitions in high pressure NaCd and NaHg discharges

Mioković, Željka and Balković, Darko and Veža, Damir (2005) Shift and broadening of sodium nS-3P and mD-3P transitions in high pressure NaCd and NaHg discharges. Fizika A, 14 (2). pp. 135-152. ISSN 1330-0008

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Abstract

We report measurements of the Stark shift and Stark width of sodium spectral lines corresponding to n^2S_1/2-3^2P_3/2,1/2 (n=5,6,7) and m^2D_5/2,3/2-3^2P_3/2,1/2 (m=5,6) transitions. Measurements have been made on AC-driven high-pressure Na-Hg-Xe and Na-Cd-Xe discharges. Electron density has been determined from the measurements of the Stark shift of sodium 7^2S_1/2-3^2P_1/2,3/2 spectral line. The electron temperature and the density of neutral particles have been determined analyzing the shape of the measured sodium atomic lines, by comparison of the calculated and the observed line profiles. Electron density and temperature range from 6 ×10^21 to 1 ×10^22 m^-3 and from 3800 to 4100 K, respectively. Dependence of measured Stark shifts and Stark widths on electron density and temperature have been investigated. The final results have been compared with available theoretical and experimental data.

Item Type: Article
Keywords: Stark shift and width, Na spectral lines, Na-Hg-Xe and Na-Cd-Xe discharges
Date: 2005
Subjects: NATURAL SCIENCES > Physics
Divisions: Faculty of Science > Department of Physics
Publisher: Hrvatsko fizikalno društvo
Depositing User: Gordana Stubičan Ladešić
Date Deposited: 15 Apr 2014 17:31
Last Modified: 15 Apr 2014 17:31
URI: http://digre.pmf.unizg.hr/id/eprint/855

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