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Energy Transport and Thermodynamics in Compressive Laser-Driven Implosion Experiments

ORAL

Abstract

In implosions of thick, gas-filled shells, such as those used in inertial confinement fusion experiments, the emitted radiation is determined by the thermodynamic states and energy transport properties of both the compressed gas and dense shell. Consequently, these implosions provide a platform for the study of these material properties at gigabar pressures through detailed measurement and integrated analysis of the emitted radiation. We present the results of laser-driven spherical implosions at the OMEGA Laser Facility of 860 µm outer-diameter, 20-35 µm thick plastic shells with 20-atm warm deuterium fill. A suite of measurements of x-ray self-emission and D-D neutron production, along with a parameterized reduced-physics model are used to constrain the thermodynamic states and energy transport in the implosion.

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Presenters

  • Ethan Smith

    University of Rochester

Authors

  • Ethan Smith

    University of Rochester

  • D. A Chin

    University of Rochester, Laboratory for Laser Energetics, University of Rochester

  • David T Bishel

    University of Rochester

  • Connor A Williams

    University of Rochester

  • Neel V Kabadi

    University of Rochester, LLE, MIT, Laboratory of Laser Energetics

  • Chad J Forrest

    Lab for Laser Energetics, University of Rochester

  • Vladimir Y Glebov

    Lab for Laser Energetics, University of Rochester, Laboratory for Laser Energetics, University of Rochester

  • Gilbert W Collins

    University of Rochester Laboratory for Laser Energetics, University of Rochester, University of Rochester, Laboratory for Laser Energetics, Laboratory for Laser Energetics, University of Rochester

  • J. Ryan Rygg

    University of Rochester, Laboratory for Laser Energetics, University of Rochester

  • John J Ruby

    Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory