Recent measurements of iron opacity on the National Ignition Facility (NIF)

ORAL

Abstract

Radiation transport in high energy density experiments is highly dependent on the x-ray opacity of the material. An experimental platform on the National Ignition Facility has been developed to measure the opacity of materials at densities and temperatures that are comparable to those found in the interior of the sun. The platform consists of a hohlraum to heat the material, a source of x-rays to backlight the sample, and a spectrometer to measure the spectrally resolved transmission of the sample. Experiments in the past year have focused on making measurements at different temperatures and densities. The results of these experiments on iron will be presented and compared to past results and to theoretical calculations.

*This work was performed under the DOE LANL contract 89233218CNA000001, LLNL Contract No. DE-AC52-07NA27344, Sandia Contract No. DE-NA0003525, and NNSS Contract No. DE-AC52-06NA25946.

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Authors

  • TS Perry

    • Los Alamos Natl Laboratory
    • LANL
    • Los Alamos Natl Lab
    • Los Alamos Natl. Lab

  • H.M. Johns

    • Los Alamos National Laboratory
    • Los Alamos Natl Lab
    • LANL

  • ES Dodd

    • LANL
    • Los Alamos Natl Lab

  • N.S. Vinyard

    • LANL
    • Los Alamos Natl Lab

  • C.J. Fontes

    • Los Alamos National Laboratory
    • Los Alamos Natl Lab

  • J.P. Colgan

    • Los Alamos Natl Lab

  • Kirk Flippo

    • Los Alamos National Laboratory
    • Los Alamos Natl Lab
    • Los Alamos Natl Laboratory

  • T. Cardenas

    • Los Alamos Natl Lab
    • Los Alamos National Laboratory

  • T. H. Day

    • Los Alamos Natl Lab
    • Los Alamos National Laboratory

  • L. Kot

    • Los Alamos Natl Lab

  • TJ Urbatsch

    • Los Alamos National Laboratory
    • Los Alamos Natl Lab
    • Los Alamos Natl Laboratory
    • LANL
    • Los Alamos Natl. Lab

  • M. R. Douglas

    • Los Alamos Natl Lab
    • Los Alamos National Laboratory

  • M.E. Sherrill

    • Los Alamos Natl Lab

  • RF Heeter

    • Lawrence Livermore National Laboratory
    • LLNL
    • Lawrence Livermore Natl Laboratory
    • Lawrence Livermore Natl Lab
    • Lawrence Livermore Natl. Lab

  • Kathy Opachich

    • LLNL
    • Lawrence Livermore Natl Lab

  • Rich London

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Laboratory

  • B.G. Wilson

    • Lawrence Livermore Natl Lab

  • C.A. Iglesias

    • Lawrence Livermore Natl Lab

  • M.B. Schneider

    • Lawrence Livermore Natl Lab
    • LLNL

  • JM Heinmiller

    • Nevada National Security Site
    • Nevada Natl Security Site
    • Nevada Natl. Security Site

  • MS Wallace

    • Nevada National Security Site
    • Nevada Natl Security Site
    • Nevada Natl. Security Site

  • EC Dutra

    • Nevada National Security Site
    • Nevada Natl Security Site
    • Nevada Natl. Security Site

  • James Bailey

    • Sandia National Laboratory
    • Sandia Natl Lab
    • Sandia National Laboratories