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KIAM Preprint № 21, Moscow, 2005
Authors: Nikiforov A.F., Novikov V. G., Fimin N. N.
The Influence of Stark Effect on Spectral Characteristics of Hot Dense Plasma
Abstract:
The effect of spectral line broadening under influence of ion microfield (Stark effect) may be important in opacity calculations for hot dense plasma. The method of Stark-effect accounting in quasi-static approximation is based on the diagonalization of multilevel Hamiltonian in one-electron approach. The distribution of ion microfield is obtained by using the perturbed independent particles model. Method is suitable both for low- and high-Z elements. The consideration is based on the relativistic Hartree-Fock-Slater model. Calculations are carried out with using the code THERMOS, developed at the Keldysh Institute of Applied Mathematics. A comparison of line profiles, spectral opacities and Rosseland free paths with the well-known H.Griem's and other results, obtained with the help of different codes, were made.
Publication language: russian
Research direction:
Mathematical modelling in actual problems of science and technics
Russian source text:
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