Recent developments in the SCROLL model.

Details Recent developments in the SCROLL model. Recent developments in the SCROLL model.

May 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000jqsrt..65...43b&link_type=abstract

Journal of Quantitative Spectroscopy and Radiative Transfer, vol. 65, issue 1-3, pp. 43-55

Computer Science

20

Radiative Transfer: Plasma

Scientific paper

The authors present the recent developments in the SCROLL model for simulating non-LTE plasma spectra. The model accounts for the overwhelming multiplicity of excited levels of heavy elements in hot and dense plasmas, treating superconfigurations as effective levels. The detailed configuration accounting results are obtained by an iterative scheme that splits superconfigurations until convergence. The authors present here a binary tree splitting procedure that enables a practical convergence algorithm. With an eye on future non-LTE database production, the authors have extended the model to include radiation fields. Some preliminary attempts to simulate the effects of radiation by using dilute Planckian radiation fields are presented. Comparison between the SCROLL results and an experiment performed recently on gold non-LTE plasma, show good agreement.

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