Heating, Hydrodynamics, and Radiation From a Laser Heated Non-LTE High-Z Target

POSTER

Abstract

We present 2D R-z simulations that model the hydrodynamics and x-ray output of a laser heated, tamped foil, using the rad-hydro code LASNEX. The foil consists of a thin (2400 A) cylindrical disk of iron/vanadium/gold that is embedded in a thicker Be tamper. The simulations utilize a non-LTE detailed configuration (DCA) model, which generates the emission spectra. Simulated pinhole images are compared with data, finding qualitative agreement with the time-history of the face-on emission profiles, and exhibiting an interesting reduction in emission size over a few ns time period. Furthermore, we find that the simulations recover similar burn through times in both the target and Be tamper as measured by a time-dependent filtered x-ray detector (DANTE). Additional results and characterization of the experimental plasma will be presented. This work performed under the auspices of U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344.

Authors

  • W. Gray

    Lawrence Livermore National Laboratory, Lawrence Livermore Natl Lab

  • M. E. Foord

    Lawrence Livermore National Laboratory, Lawrence Livermore Natl Lab

  • M. B. Schneider

    LLNL, Lawrence Livermore National Laboratory, Lawrence Livermore Natl Lab

  • M. A. Barrios

    Lawrence Livermore National Laboratory, Lawrence Livermore Natl Lab, LLNL

  • G. V. Brow

    Lawrence Livermore National Laboratory, Lawrence Livermore Natl Lab, LLNL

  • R. F. Heeter

    Lawrence Livermore National Laboratory, Lawrence Livermore National Lab, Lawrence Livermore Natl Lab, LLNL

  • L. C. Jarrott

    Lawrence Livermore National Laboratory, Lawrence Livermore Natl Lab

  • D. A. Liedahl

    Lawrence Livermore National Laboratory, Lawrence Livermore Natl Lab, LLNL

  • E. V. Marley

    Lawrence Livermore National Laboratory, Lawrence Livermore Natl Lab

  • C. W. Mauche

    Lawrence Livermore National Laboratory, Lawrence Livermore Natl Lab

  • K. Widmann

    LLNL, Lawrence Livermore National Laboratory, Lawrence Livermore Natl Lab