Synthetic time and space resolved spectra including doppler splitting from simulations of stainless steel and argon pinches on Z

Summary form only given. A two-dimensional radiation MHD model that includes a self-consistent calculation for non-local thermodynamic equilibrium kinetics and ray-trace radiation transport¹ is employed to simulate 65 mm diameter stainless steel double wire array Z machine experiments of 5.0 mg - shot Z1859 and 2.5 mg - shot Z1860 as well as 8 cm diameter, 2.5 mg, argon gas-puff experiments, shots Z2259 - Z2261. Temporal and spatial knowledge of the atomic populations, ion temperatures, and velocities obtained from these calculations allows us to then apply (post-process) detailed multifrequency ray-trace radiation transport, including Doppler effects, to construct time- and axially- or radially-resolved synthetic spectra. Calculated spectra, with and without Doppler effects, for He-like iron and H-like argon near the time of peak emission are compared with experimental data in order to better understand and illustrate time dependent Doppler effects influence on observed spectra.