Stark broadening and shift of singly and doubly ionized sulfur spectral lines

Abstract

Stark width and shift measurements of eight S II and one S III spectral line {of4s-4p, 4s'-4p', and 4p-4d transition arrays) have been performed for the electron density range 6.70X 10 -2.08 X 10 ' m ' and for an electron temperature range 27000-40000 K. Stark parameters of all these spectral lines, belonging mostly to higher multiplets, were measured in a linear low-pressure pulsed arc operating in SO2. The obtained Stark width data were compared with the values calculated on the basis of various theoretical approaches and good agreement has been found. The existence of Stark width dependence on the upper-level ionization potential, for S II spectral lines belonging to the 4p-4d transition array, has also been proved. 422379

Temperature dependence of Stark width of the 463.054 nm N II spectral line

“…The modified version of the linear low pressure pulsed arc (Djeniže et al 1990;Milosavljević & Djeniže 1998) has been used as a plasma source. A pulsed discharge driven in a quartz discharge tube of various inner diameters (Φ): 5 mm and 25 mm with an effective plasma length (H) from 6.2 cm to 14 cm.…”

“…A number of experimental papers deal with Stark FWHM (full-width at half intensity maximum, w) of singly ionized nitrogen spectral lines from multiplet 3 P 0 − 3 P (No. 5) belonging to 3s − 3p transition (Day & Griem 1965;Berg et al 1967;Jalufka & Craig 1970;Konjević et al 1970;Popović et al 1975;Purcell & Barnard 1984;Purić et al 1987;Djeniže et al 1990;Perez et al 1997;Milosavljević & Djeniže 1998). The 463.054 nm spectral line, that belong to this multiplet, is the most investigated spectral line in the N II spectrum.…”

Stark broadening parameters in the S III spectrum

“…•, our experimental data; , Platiša et al (1979); , Djeniže et al (1990). < λ > is the mean wavelength in the multiplet.…”

“…Three of them are the first measured data. Our measured and calculated W and d values are compared to available experimental S III Stark parameters (Platiša et al 1979;Djeniže et al 1990). …”