Line broadening analysis of time- and space-resolved spectra from argon-doped implosion cores driven by a z-pinch dynamic-hohlraum

Spectral line broadening analysis of argon K-shell lines from argon-doped implosion cores driven by a Z-Pinch Dynamic-Hohlraum are reported on. The observed argon line spectra include emissions from six lines in the resonance series of H- and He-like Ar ions. The line broadening analysis accounts for opacity and Stark broadening effects to extract electron and areal density values for ground state populations of H- and He-like Ar ions. These results combined with an atomic kinetics calculation of the ratio of H- and He-like ground state populations are used to extract the electron temperature. Analytical results are used to characterize the opacity broadening. Detailed Stark-broadened line shape calculations are employed that include the effects of both plasma ions and electrons. The analysis is applied to time-resolved, space-integrated and space-resolved data in an effort to unfold the time-history of the core's temperature and density and begin to investigate the core's spatial structure.