The Colliding Planar Shocks platform to study warm dense matter at the National Ignition Facility

ORAL

Abstract

We have developed an experimental platform to study warm dense matter at the National Ignition Facility that using colliding planar shocks to produce uniform plasma conditions and enable high-precision equation of state measurements [1]. The Colliding Planar Shocks (CPS) platform uses simultaneous x-ray Thomson scattering and x-ray radiography to measure the density, electron temperature, and ionization state at pressures approaching 100 Mbar. The CPS platform is designed to create a large volume of uniform plasma in the x-ray scattering volume, significantly improving the precision of the measurements necessary to test models for the equation of state and ionization potential depression in the warm dense matter regime. Here, we present the design of the CPS platform and compare hydrodynamic simulations to x-ray radiography and x-ray scattering data from initial experiments studying hydrocarbons.



[1] M. J. MacDonald et al., Phys. Plasmas 30, 062701 (2023).

*This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract No. DE-AC52-07NA27344 and supported by Laboratory Directed Research and Development (LDRD) Grant No. 18-ERD-033.

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Presenters

  • Mike J MacDonald

    • Lawrence Livermore Natl Lab

Authors

  • Mike J MacDonald

    • Lawrence Livermore Natl Lab

  • Carlos A Di Stefano

    • Los Alamos National Laboratory

  • Tilo Doeppner

    • Lawrence Livermore National Laboratory

  • Luke Fletcher

    • SLAC - Natl Accelerator Lab

  • Kirk A Flippo

    • Los Alamos Natl Lab

  • Daniel H Kalantar

    • Lawrence Livermore Natl Lab

  • Elizabeth C Merritt

    • Los Alamos National Laboratory

  • Suzanne J Ali

    • Lawrence Livermore Natl Lab

  • Peter M Celliers

    • Lawrence Livermore Natl Lab

  • Rick Heredia

    • Lawrence Livermore National Laboratory

  • Scott Vonhoff

    • General Atomics

  • Gilbert W Collins

    • University of Rochester

  • Jim A Gaffney

    • Lawrence Livermore National Laboratory

  • Dirk Gericke

    • University of Warwick

  • Siegfried H Glenzer

    • SLAC National Accelerator Laboratory
    • Lawrence Livermore Natl Lab

  • Dominik Kraus

    • University of Rostock

  • Alison Saunders

    • Lawrence Livermore Natl Lab

  • Derek Schmidt

    • Los Alamos National Laboratory

  • Christopher T Wilson

    • Los Alamos National Laboratory
    • Los Alamos National Laboraroy

  • Rich Zacharias

    • Lawrence Livermore National Laboratory

  • Roger Falcone

    • University of California, Berkeley