Line shape study of neutral argon lines in plasma of an atmospheric pressure wall stabilized argon arc

We report results of the measurement of the Stark parameters for several visible neutral argon lines. For this study wall stabilized arc is used as a plasma source. Electron densities of (0.74-2.9) x 10(22) m(-3) are determined from the width of the H-beta line and electron temperatures of (9280-10750) K are deduced from plasma composition data. Precision technique for spectral line shape recordings is applied. The deconvolution procedure for asymmetric line profiles is used to determine the Stark broadening parameters from experimental line shapes. The results are compared with theoretical and other experimental data.