BASIC STUDIES REGARDING LINE BROADENING.
Abstract
The ratio of halfwidth to critical value for the transition between quasi-static and impact domain of electron contributions to linear Stark broadening (according to Unsold) is expected to vary approximately with n to the 4th power, where n is the upper principle quantum number of the line considered. Low density plasmas generated by a radio frequency arrangement permit the observation of many non-overlapping Balmer lines and thus a drastic variation of the ratio; for identical plasma parameters access deep into the quasi-static as well as impact regime of electron broadening is realized to a degree not achieved previously. As recently suggested, the observed broadening can be approximated in terms of an effective quasi-static perturber density, which is a universal function of the displacement from the line center expressed in units of the above mentioned critical transition value. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1968
- Accession Number
- AD0683353
Entities
People
- Hans Schluter
Organizations
- University of Texas at Austin