Shock-Wave Properties in High-Energy-Density Environments

ORAL

Abstract

Spherical implosions of thin-shell targets at the Omega Laser Facility provide a platform to study materials at gigabar pressures and shock dynamics relevant to supernova remnants. A laser-driven spherical shock is launched in the target, which rebounds upon reaching the center and interacts with the surrounding plasma of ablated shell material, forming an expanding shell of hot, shocked material similar to those found around supernova remnants. Measurements of the x-ray continuum radiation emitted by this shell, along with a simplified model of the shock dynamics inspired by efforts to model the propagation and phases of supernova remnants, are used to constrain the thermodynamic states of the shocked material inside the shell using Bayesian inference.

*This material is based upon work supported by the Department of Energy National Nuclear Security Administration under Award Number DE-NA0003856.

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Presenters

  • Ethan Smith

    • Laboratory for Laser Energetics

Authors

  • Ethan Smith

    • Laboratory for Laser Energetics

  • Ryan Rygg

    • University of Rochester

  • Gilbert W Collins

    • University of Rochester
    • Department of Mechanical Engineering, University of Rochester, Rochester, NY, USA. Laboratory for Laser Energetics, Rochester, NY, USA. Department of Physics and Astronomy,

  • John J Ruby

    • Lawrence Livermore National Lab
    • Lawrence Livermore National Laboratory, CA, USA.
    • Lawrence Livermore National Laboratory