Experimental Stark parameters for some lines of neutral carbon, oxygen, and sulfur

Details Experimental Stark parameters for some lines of neutral carbon, oxygen, and sulfur Experimental Stark parameters for some lines of neutral carbon, oxygen, and sulfur

Nov 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983jqsrt..30..417g&link_type=abstract

Journal of Quantitative Spectroscopy and Radiative Transfer (ISSN 0022-4073), vol. 30, Nov. 1983, p. 417-431.

Other

11

Fine Structure, Neutral Gases, Plasma Diagnostics, Plasma Spectra, Spectral Line Width, Stark Effect, Carbon, Electron Density Profiles, Oxygen Plasma, Sulfur

Scientific paper

Profile measurements for some multiplets of neutral oxygen, carbon, and sulfur have been carried out in a wall-stabilized arc. A 3.4 m Ebert spectrograph (with a dispersion of 1.1 mm/A), adapted to simultaneous photoelectric scanning of two sources, was used. Different gas mixtures (Ar + CO2, Ar + SF6, Ar + O2), containing a small quantity of hydrogen, were used for production of plasmas. Arc currents between 12 and 102 A yielded electron densities from 0.76 to 7.1 x 10 to the 16th/cu cm and temperatures between 9000 and 12,000 K. Half-widths and shifts of seven multiplets were determined and compared with theoretical and experimental data. Good agreement was generally found except for C(I) (4771 A), where the difference between the present results and those of Nubbemeyer and Wende (1969) is too large. Stark parameters of components for the well resolved multiplet C(I) (6), and other multiplets in the same transition arrays, show the behavior expected for plasma-broadened line parameters.

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