Gbar-range Hugoniot equation of state of Boron

ORAL

Abstract

Using convergent drive geometries and large-scale laser facilities, it is now possible to experimentally access high-pressure, high-temperature regimes of phase space where the thermal excitation of bound electrons has a measurable effect on plasma compressibility.~ These states are important for modeling extreme astrophysical phenomena and fusion-energy experiments.~~ Equation of state models have high uncertainty in this regime because of the lack of benchmarking experimental data.~ We will present new data on elemental boron spanning pressures of 10's of Mbar to near 1 Gbar, using planar and spherically-convergent drive platforms on the NIF laser facility, to test a range of equation of state models.~

*This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344

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Authors

  • Amy Lazicki

    • Lawrence Livermore Natl Lab

  • Damian Swift

    • Lawrence Livermore Natl Lab

  • Heather Whitley

    • Lawrence Livermore Natl Lab

  • Tilo Doeppner

    • Lawrence Livermore Natl Lab

  • Madison Martin

    • Lawrence Livermore Natl Lab

  • Michelle Marshall

    • Lawrence Livermore Natl Lab

  • David Erskine

    • Lawrence Livermore Natl Lab

  • Richard London

    • Lawrence Livermore Natl Lab

  • Dayne Fratanduono

    • Lawrence Livermore Natl Lab

  • Peter Celliers

    • Lawrence Livermore Natl Lab

  • Jon Eggert

    • Lawrence Livermore Natl Lab

  • Natalie Kostinski

    • Lawrence Livermore Natl Lab

  • Brian Maddox

    • Lawrence Livermore Natl Lab

  • Shuai Zhang

    • Lawrence Livermore Natl Lab

  • Brian Wilson

    • Lawrence Livermore Natl Lab

  • Walter Johnson

    • University of Notre Dame

  • Joseph Nilsen

    • Lawrence Livermore Natl Lab