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FIZIKA A 14 (2005) 2, 135 - 152
 
SHIFT AND BROADENING OF SODIUM nS-3P AND mD-3P TRANSITIONS IN HIGH
PRESSURE NaCd AND NaHg DISCHARGES
ŽELJKA MIOKOVIĆ a,b, DARKO BALKOVIĆ a
and DAMIR VEŽAa,1
aPhysics Department, Faculty of Science, University of
Zagreb, Bijenička 32
HR-10 002 Zagreb, Croatia
bFaculty of Electrical Engineering, University of Osijek, K. Trpimira 2B
31 000 Osijek, Croatia
1E-mail address: veza@phy.hr
Received 1 February 2005; revised manuscript received 3 June 2005
Accepted 13 June 2005 Online 4 December 2005
We report measurements of the Stark shift and Stark width of sodium spectral lines
corresponding to n2S1/2-32P3/2,1/2 (n=5,6,7)
and m2D5/2,3/2-32P3/2,1/2 (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 72S1/2-32P1/2,3/2
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
×1021 to 1 ×1022 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.
PACS numbers: 52.70.Kz, 52.80.Mg, 52.25.Os
UDC 537.228.5
Keywords: Stark shift and width, Na spectral lines, Na-Hg-Xe and Na-Cd-Xe discharges
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