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- W278600845 abstract "The first stage in the radiation modelling of hot plasmas involve the determination of the atomic data for all the ions immersed into the plasma, which are able to be both in ground configuration and excited configurations. This fact implies to deal with an enormous amount of atomic data. Although there are some computer codes [1-3] based on numerical solution of Schrodinger or Dirac equations for highly ionized atoms currently available to calculate those atomic data by using self-consistent methods, they mean a cons iderable increase in computing time. A possible solution to this problem, in this kind of models, is to limit the number of excited configurations to include per ion. Nevertheless, care must be taken in selecting level structure adequate to describe the main ion abundance in the density regime where the model is to be applied since excited configurations have a large effect on ion abundance in all regimes of densities. An interesting alternative to self-consistent models is based on models including analytical expressions for the effective potential avoiding the iterative procedures. Thus, these models will allow us to include more excited configurations in atomic calculations improving ion abundance calculations. 2. Analytical potential for non isolated ions in excited configurations In this work we present an expression for an analytical potential to model non isolated ions in excited configurations. This potential has been built up from analytical potentials developed by us for both isolated ions in excited configurations [4] and non isolated ions in ground configuration [5] (denoted in the following by EIP and GNIP, respectively) and its general expression, for an ion of nuclear charge Z and N bound electrons, is given by" @default.
- W278600845 created "2016-06-24" @default.
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- W278600845 date "2004-01-01" @default.
- W278600845 modified "2023-09-22" @default.
- W278600845 title "Analytical Potential for Core and Si ngle Excited Configurations Including Plasma Effects to Obtain Atomic Properties for Ions in Dense and Hot Plasmas" @default.
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