Influence of atomic modeling on integrated simulations of laser-produced Au plasmas

Yechiel Frank, Erez Raicher, Yosi Ehrlich, Gilad Hurvitz, Zeev Shpilman, Moshe Fraenkel, Arie Zigler, and Zohar Henis
Phys. Rev. E 92, 053111 – Published 25 November 2015

Abstract

Time-integrated x-ray emission spectra of laser-irradiated Au disks were recorded using transmission grating spectrometry, at laser intensities of 1013 to 1014W/cm2. Radiation-hydrodynamics and atomic physics calculations were used to simulate the emitted spectra. Three major plasma regions can be recognized: the heat wave, the corona, and an intermediate region connecting them. An analysis of the spectral contribution of these three plasma regions to the integrated recorded spectrum is presented. The importance of accurate atomic modeling of the intermediate plasma region, between the corona and the heat wave, is highlighted. The influence of several aspects of the atomic modeling is demonstrated, in particular multiply-excited atomic configurations and departure from local thermal equilibrium.

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  • Received 18 May 2015
  • Revised 5 August 2015

DOI:https://doi.org/10.1103/PhysRevE.92.053111

©2015 American Physical Society

Authors & Affiliations

Yechiel Frank1,2,*, Erez Raicher1,2, Yosi Ehrlich2, Gilad Hurvitz2, Zeev Shpilman2, Moshe Fraenkel2, Arie Zigler1, and Zohar Henis1,2

  • 1Racah Institute of Physics, Hebrew University, Jerusalem 91904, Israel
  • 2Soreq Research Center, Yavne 81800, Israel

  • *yechiel.frank@mail.huji.ac.il

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Vol. 92, Iss. 5 — November 2015

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