Experimental studies of Stark broadening for He II 304, 1215 and 1640 AA
- 28 June 1978
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 11 (12) , 2087-2099
- https://doi.org/10.1088/0022-3700/11/12/010
Abstract
Experimental Stark profiles are presented for the helium II 304 AA resonance line, and for two members of the He II Balmer series in a plasma in which conditions of density and temperature, including spatial variations throughout the plasma, are accurately known from Thomson scattering measurements. The profiles were observed from a spatial region of the plasma limited by use of optical aperturing techniques and known to be entirely homogeneous from the Thomson scattering measurements; the ionisation balance in the plasma was separately measured spectroscopically.Keywords
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