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Title: Stark Widths of Hydrogen Spectral Lines in Plasmas: a Highly-Advanced Non-Simulative Semiclassical Theory and Tables

Plasma spectroscopy had served as a fertile field for applications of the formalism of Dressed Atomic States in Plasmas (DASP). The theory named in the title of this paper is based primarily on a generalization of the formalism of DASP. In its contemporary composition, this theory brings together: A) non-impact description of the indirect coupling of the electron and ion microfields; B) non-binary description of the direct coupling of the electron and ion microfields; C) non-binary non-impact description of the ion-dynamical broadening. The latter produces, in particular, a new counter-intuitive result for the dependence of the Ion-Dynamical Stark Width (IDSW) on the temperature T: it predicts that in distinction to the high-T limit, for which it was known that IDSW {approx} 1/T1/2, in the low-T limit the temperature dependence changes to IDSW {approx} T1/4. In other words, as the temperature decreases from the high-T limit, the IDSW first increases {approx} 1/T1/2, then reaches a maximum, and then decreases {approx} T1/4 (this being a non-binary result). A non-binary result on the density dependence of the IDSW is also presented. The theory composed of the above items A), B), C), is used for creating extensive Tables of Stark widths of hydrogen linesmore » in plasmas. By comparison with benchmark experiments, it is shown that these Tables are more accurate than the corresponding tables published previously by other authors.« less
Authors:
 [1]
  1. Physics Department, 206 Allison Lab., Auburn University, Auburn, AL 36849 (United States)
Publication Date:
OSTI Identifier:
20895168
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 874; Journal Issue: 1; Conference: 18. international conference on spectral line shapes, Auburn, AL (United States), 4-9 Jun 2006; Other Information: DOI: 10.1063/1.2402748; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ELECTRON COLLISIONS; ELECTRONS; HYDROGEN; ION COLLISIONS; IONS; LINE BROADENING; PLASMA; SEMICLASSICAL APPROXIMATION; SPECTROSCOPY; TEMPERATURE DEPENDENCE