Modeling of x-ray spectra emitted from a solid-density strongly coupled plasma formed in short-duration, high-power laser–matter interactions represents a highly challenging task due to extreme conditions found in these experiments. In this paper we present recent progress in the modeling and analysis of Kα emission from solid-density laser-produced titanium plasmas. The self-consistent modeling is based on collisional-radiative calculations that comprise many different processes and effects, such as satellite formation and blending, plasma polarization, Stark broadening, solid-density quantum effects and self-absorption. A rather strong dependence of the Kα shape on the bulk electron temperature is observed. Preliminary analysis of recently obtained experimental data shows a great utility of the calculations, allowing for inferring a temperature distribution of the bulk electrons from a single-shot measurement.
|Pages (from-to)||Article number 214056, 10pp|
|Journal||Journal of Physics A: Mathematical and Theoretical|
|Publication status||Published - 2009|
Stambulchik, E., Bernshtam, V., Weingarten, L., Kroupp, E., Fisher, D., Maron, Y., Zastrau, U., Uschmann, I., Zamponi, F., Fa¶rster, E., Sengebusch, A., Reinholz, H., Ra¶pke, G., & Ralchenko, Y. (2009). Progress in line-shape modeling of K-shell transitions in warm dense titanium plasmas. Journal of Physics A: Mathematical and Theoretical, 42(21), Article number 214056, 10pp. https://doi.org/10.1088/1751-8113/42/21/214056