Spectral-line-blending study of highly excited atomic levels in high-density argon plasma
- 28 February 1980
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 13 (4) , 689-696
- https://doi.org/10.1088/0022-3700/13/4/006
Abstract
A computer-based model of the spectrum of an LTE argon plasma has been fitted to the experimental spectrum emitted by a wall-stabilised arc in the electron density range 1*1022 to 2.5*1023 m-3. Correction factors have been determined for the 714.7, 430.01, 641.63 and 560.67 nm lines of Ar I which take account of the influence of spectral-line blending, line-wing loss and self absorption on the experimental determination of their integrated intensity. Transition probabilities determined from the measurements have been shown to be independent of the plasma state and hence demonstrate that there is no evidence of high-density corrections to the Boltzmann distribution of number densities within the experimental range of electron densities.Keywords
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- Spectral-line-blending calculations applied to highly excited atomic levels in high-density argon plasmasJournal of Physics B: Atomic and Molecular Physics, 1977
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