X-ray Thomson scattering spectra of shock-compressed Be plasmas

ORAL

Abstract

We have measured x-ray Thomson scattering spectra of shock compressed Be for pressures in the range of 10-35 Mbar. 6 keV x-rays have been produced to perform spectrally resolved measurements of the plasmas employing both non-collective and collective scattering at the Omega laser facility. The scattering spectra from two different regimes show Compton and Plasmon features indicating Fermi-degenerate dense plasmas with a Fermi energy in excess of 30 eV and temperatures of 9-15 eV. These findings indicate compression by a factor of three in good agreement with radiation hydrodynamic modeling. This work was performed under the auspices of the Lawrence Livermore National Security, LLC, (LLNS) under Contract No. DE-AC52-07NA27344.

Authors

  • H.J. Lee

    • Department of Physics, University of California, Berkeley

  • R.W. Falcone

    • Department of Physics, University of California, Berkeley

  • Siegfried Glenzer

    • Lawrence Livermore National Laboratory
    • LLNL

  • P. Neumayer

    • Lawrence Livermore National Laboratory

  • J. Castor

    • Lawrence Livermore National Laboratory

  • O.L. Landen

    • Lawrence Livermore National Laboratory

  • T. D\"oeppner

    • Lawrence Livermore National Laboratory

  • R.W. Lee

    • Lawrence Livermore National Laboratory

  • B.A. Hammel

    • Lawrence Livermore National Laboratory

  • D.H. Munro

    • Lawrence Livermore National Laboratory

  • B.K. Spears

    • Lawrence Livermore National Laboratory

  • S. Weber

    • Lawrence Livermore National Laboratory

  • C. Fortmann

    • Institut f\"ur Physik, Universit\"at Rostock, Germany

  • R. Redmer

    • Institut f\"ur Physik, Universit\"at Rostock, Germany

  • R. Thiele

    • Institut f\"ur Physik, Universit\"at Rostock, Germany

  • A.L. Kritcher

    • Nuclear Engineering Department, University of California, Berkeley

  • D.D. Meyerhofer

    • Laboratory for Laser Energetics

  • S.P. Regan

    • Laboratory for Laser Energetics