OBSERVATION OF ION DYNAMICS IN THE HE14026A STARK PROFILE

被引:9
作者
EHRICH, H
HELBIG, V
机构
[1] Institut für Experimentalphysik, Kiel
关键词
D O I
10.1088/0022-3700/12/7/019
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A new experimental method allowing the heavy-particle temperature in an arc plasma to change considerably in otherwise fixed plasma conditions was applied to the study of the Stark broadening of the line He I 4026 AA and its associated forbidden components at an electron density of ne=1015 cm-3. Consistent with an earlier experiment, strong deviations from static ion calculations were found. The whole line shape was found to depend sensitively on variations in the heavy-particle temperature and, by including the earlier experiment as well as using the static ion theory, systematic trends could be observed. Though improving some features of the static profile, a recent calculation including ion dynamics still gives poor agreement with experiment.
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页码:1183 / 1193
页数:11
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