title: Dynamic Stark broadening as the Dicke narrowing effect.
abstract: A very fast method to account for charged particle dynamics effects in calculations of spectral line shape emitted by plasmas is presented. This method is based on a formulation of the frequency fluctuation model (FFM), which provides an expression of the dynamic line shape as a functional of the static distribution of frequencies. Thus, the main numerical work rests on the calculation of the quasistatic Stark profile. This method for taking into account ion dynamics allows a very fast and accurate calculation of Stark broadening of atomic hydrogen high- n series emission lines. It is not limited to hydrogen spectra. Results on helium- beta and Lyman- alpha lines emitted by argon in microballoon implosion experiment conditions compared with experimental data and simulation results are also presented. The present approach reduces the computer time by more than 2 orders of magnitude as compared with the original FFM with an improvement of the calculation precision, and it opens broad possibilities for its application in spectral line-shape codes.
authors.affiliation: PIIM, UMR6633, Centre Saint Jérôme, Université de Provence-CNRS, Marseille, France. annette.calisti@univ-provence.fr
authors.forename: A
authors.initials: A
authors.lastname: Calisti
authors.forename: C
authors.initials: C
authors.lastname: Mossé
authors.forename: S
authors.initials: S
authors.lastname: Ferri
authors.forename: B
authors.initials: B
authors.lastname: Talin
authors.forename: F
authors.initials: F
authors.lastname: Rosmej
authors.forename: L A
authors.initials: LA
authors.lastname: Bureyeva
authors.forename: V S
authors.initials: VS
authors.lastname: Lisitsa