Abstract
Stark profiles of 21 Ne II lines from 10 multiplets were measured in a low-pressure, pulsed arc. An electron density of 1.4 × 1023 m-3 was determined by laser interferometry and an electron temperature of 28000 K was measured using relative intensities of 0 II impurity lines. These experimental data are compared with a previous experiment, with semiclassical theoretical results, and with semiempirical calculations. They agree well, within experimental uncertainties, with both the experimental and the semiclassical results. However, systematic discrepancies exist when compared with the semiempirical results and these exceed the uncertainties of both the calculation and experiments. Also, the experimental Ne II Stark widths show good agreement with a recent study of regularities in plasma-broadened spectral line widths.
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