Measurement of Stark width of some Ar I transitions in a d.c. argon plasma jet at atmospheric pressure.

Details Measurement of Stark width of some Ar I transitions in a d.c. argon plasma jet at atmospheric pressure. Measurement of Stark width of some Ar I transitions in a d.c. argon plasma jet at atmospheric pressure.

Nov 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jqsrt..42..405b&link_type=abstract

Journal of Quantitative Spectroscopy and Radiative Transfer, vol. 42, issue 5, pp. 405-413

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Stark Broadening: Argon Lines

Scientific paper

The Stark widths of seven Ar I transitions are reported. Axial line shape data from an atmospheric d.c. argon plasma jet were Abel-inverted to obtain radial line shapes. In the electron-density region of ≤6×1022m-3, the experimental Ar I Stark widths are fitted to a linear dependence on the electron density. Values of Stark widths extrapolated to other electron densities are compared with measurements reported in the literature on the 4s-4p array. Experimental values are up to 45% smaller than those predicted by Griem's theory of Stark broadening. The authors report experimental values of the electron-impact parameter W.

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