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The reduced detailed configuration accounting (RDCA) model for NLTE plasma spectral calculations |
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| Authors: | Joseph Abdallah Jr. M.E. Sherrill D.P. Kilcrease C.J. Fontes H.L. Zhang J. Oelgoetz |
| Affiliation: | aTheoretical Division, T-1, Los Alamos National Laboratory, Los Alamos, NM 87545, USA;bApplied Physics Division, X-1-NAD, Los Alamos National Laboratory, USA;cDepartment of Physics and Astronomy, Austin Peay State University, P.O. Box 4608, Clarksville, TN 37044, USA |
| Abstract: | The purpose of this work is to continue development of a model to provide a fast and accurate in-line NLTE capability for calculating plasma spectral properties in large-scale radiation-transport hydrodynamic simulations. A method has recently been developed to transform the large detailed atomic models into very small models that can be used for fast in-line calculations. The reduced model is more accurate than the average-atom models conventionally used in such simulations. In the present work, spectra calculated with the reduced model are compared to the original detailed model and the average-atom model. The spectra of iron and gold plasmas under various plasma conditions are compared. |
| Keywords: | NLTE population kinetics Detailed configuration accounting Spectrum synthesis |
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