Stark broadening parameters in singly and doubly ionized fluorine spectra

Details Stark broadening parameters in singly and doubly ionized fluorine spectra Stark broadening parameters in singly and doubly ionized fluorine spectra

Jun 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004a%26a...420..769s&link_type=abstract

Astronomy and Astrophysics, v.420, p.769-774 (2004)

Astronomy and Astrophysics

Astrophysics

1

Lines: Profiles, Atomic Data

Scientific paper

Stark widths (W) and shifts (d) of 5 singly ionized fluorine (F II) spectral lines within the 3s-3p, 3s'-3p' and 3d-4f transitions and 5 doubly ionized fluorine (F III) spectral lines within the 3s- 3p transition have been measured in a linear, low-pressure, pulsed arc discharge created in SF_6 plasma at 30 400-33 600 K electron temperatures and at (2.75-2.80)× 1023 m-3 electron densities. For Stark parameters of two F II and five F III lines there are no other experimental data. The widths and shifts have also been calculated using the semiclassical perturbation formalism (SCPF) (taking into account the impurity of energy levels, i.e. that the atomic energy levels are expressed as a mix of different configurations due to the configuration interaction). Calculations have been performed for temperatures between 5000 K and 100 000 K for the F II spectral lines and between 10 000 K and 300 000 K for the F III spectral lines for electrons, protons and helium ions as perturbers. Our measured and theoretical Stark parameters are compared with existing experimental and theoretical data. Tolerable agreement was found among them.

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