Progress in line-shape modeling of K-shell transitions in warm dense titanium plasmas

E. Stambulchik, V. Bernshtam, L. Weingarten, E. Kroupp, D. Fisher, Y. Maron, U. Zastrau, I. Uschmann, F. Zamponi, E. Fa¶rster, A. Sengebusch, Heidi Reinholz, G. Ra¶pke, Y. Ralchenko

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    Abstract

    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.
    Original languageEnglish
    Pages (from-to)Article number 214056, 10pp
    JournalJournal of Physics A: Mathematical and Theoretical
    Volume42
    Issue number21
    DOIs
    Publication statusPublished - 2009

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    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