Line shape modeling of multielectron ions in plasmas

A density-matrix theoretical model to calculate spectral line profiles of g eneral multielectron ions in plasmas is described. The line-profile calcula tion involves electron collisional and radiative relaxation of ionic states , the emitter's motion (Doppler effect) and its interaction with a quasi-st atic ion microfield. Using the LineDM computer package implementing this mo del, line-profile calculations of the K- and L-shell transitions in Al XII, Ar XVII, Ar XVI, Cu XX, and Xe XLV ions have been performed in the context of plasma diagnostic issues of recent laboratory experiments. Comparisons of the calculated line profiles with experimental and other theoretical dat a show the applicability of the model and package for the detailed computat ional analysis of line radiation spectra from multielectron emitters in hot dense plasmas.