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, 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.Note: Research direction:Mathematical modelling in actual problems of science and technic