Radiative redistribution modeling for hot and dense plasmas

Details Radiative redistribution modeling for hot and dense plasmas Radiative redistribution modeling for hot and dense plasmas

Apr 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aipc..467...88m&link_type=abstract

The 14th international conference on spectral line shapes. AIP Conference Proceedings, Volume 467, pp. 88-98 (1999).

Statistics

Computation

Fluctuation And Chaos Phenomena, Zeeman And Stark Effects, Line And Band Widths, Shapes, And Shifts

Scientific paper

A model based on an extension of the Frequency Fluctuation Model (FFM) is developed to investigate the two-photon processes and particularly the radiative redistribution functions for complex emitters in a wide range of plasmas conditions. The FFM, originally, designed as a fast and reliable numerical procedure for the calculation of the spectral shape of the Stark broadened lines emitted by multi-electron ions, relies on the hypothesis that the emitter-plasma system can be well represented by a set of ``Stark Dressed Transitions,'' SDT. These transitions connected to each others through a stochastic mixing process accounting for the local microfield random fluctuations, form the basis for the extension of the FFM to computation of non-linear response functions. The formalism of the second order radiative redistribution function is presented and examples are shown.

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