Journal
HIGH ENERGY DENSITY PHYSICS
Volume 3, Issue 1-2, Pages 109-114Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.hedp.2007.02.032
Keywords
Collisional-radiative; Non-LTE; Spectroscopic
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Funding
- U.S. Department of Energy by University of California Lawrence Livermore National Laboratory [W-7405-Eng-48]
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We propose a hybrid approach to treating atomic structure and rates in collisional-radiative models, combining the completeness of highly averaged models with the accuracy of detailed models. The hybrid scheme supplements a small subset of coronally accessible fine structure levels with a complete set of configuration- and superconfiguration-averaged levels and produces spectra composed of transitions among a mix of fine structure and relativistic configuration- averaged levels. Convenient expressions are given for obtaining rates between the fine structure and averaged levels and a technique for propagating configuration interaction from the fine structure calculations to configuration averages is described. We present results from a trial hybrid model of germanium which demonstrate the accuracy of the hybrid model for charge state distributions and spectra. Published by Elsevier Ltd.
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