Non-LTE modeling and simulations for spectroscopic analysis of stainless-steel Z-pinch plasma

We have developed a collisional-radiative spectroscopic model that combines the accuracy of detailed accounting for all important excited states coupling with the completeness of a highly averaged Rydberg state model. The model was used to investigate the implosion dynamics of nested Stainless-Steel (SS) wire arrays and generate K- and L-shell spectra using a 1-D non-LTE radiation hydrodynamics model self-consistently coupled to a transmission line description of the device. We compare our SS spectra with experimental data of shot Z581 and Z1860 on the Z and the refurbished Z accelerators respectively, at Sandia National Laboratories. The simulations self-consistently include the effects of radiation transport and line broadening. We include level-specific dielectronic recombination data in order to investigate the \textit{Ly}$_{\_{\rm g}}$satellite lines that are useful for diagnosing line broadening in a Z-pinch plasma at stagnation.