A Feasibility Study of Using X-ray Thomson Scattering to Diagnose the Stagnated Plasma Conditions of Laser-Direct-Drive, DT Cryogenic Implosions

ORAL

Abstract

The design of inertial confinement fusion (ICF) ignition targets requires radiation-hydrodynamics simulations with accurate models of the fundamental material properties (i.e., equation of state, opacity, and conductivity). A feasibility study of using spatially-integrated, spectrally-resolved, X-ray Thomson scattering (XRTS) measurements to diagnose the temperature, density, and ionization of the compressed DT shell and hot spot of a laser-direct-drive implosion at stagnation was conducted. Synthetic scattering spectra were generated using 1-D implosion simulations from the LILAC code that were post processed with the X-ray Scattering (XRS) code. The optimal configuration for simultaneous collective and non-collective scattering measurements to diagnose the different regions of the stagnated plasma will be presented.

*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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Authors

  • Hannah Poole

    • Department of Physics, University of Oxford

  • Gianluca Gregori

    • University of Oxford
    • Department of Physics, Clarendon Laboratory, Parks Road, University of Oxford, OX1 3PU, UK
    • Department of Physics, University of Oxford

  • D. Cao

    • Laboratory for Laser Energetics, U. of Rochester
    • University of Rochester
    • Lab for Laser Energetics
    • Laboratory for Laser Energetics, University of Rochester

  • Ryan Rygg

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

  • Suxing Hu

    • Laboratory for Laser Energetics, Univ. of Rochester
    • Laboratory for Laser Energetics, University of Rochester
    • Laboratory for Laser Energetics, U. of Rochester
    • LLE
    • University of Rochester
    • Laboratory for Laser Energetics
    • Laboratory for Laser Energetics, Uni. of Rochester

  • Igor Golovkin

    • Prism Computational Sciences

  • Tim Walton

    • Prism Computational Sciences

  • Reuben Epstein

    • Laboratory for Laser Energetics, University of Rochester
    • LLE, University of Rochester
    • Laboratory for Laser Energetics, U. of Rochester
    • Laboratory for Laser Energetics

  • Muhammad Kasim

    • University of Oxford, UK
    • University of Oxford
    • Department of Physics, University of Oxford

  • Sam Vinko

    • University of Oxford, UK
    • University of Oxford
    • Department of Physics, University of Oxford

  • Sean Regan

    • University of Rochester
    • Laboratory for Laser Energetics - University of Rochester
    • Laboratory for Laser Energetics, U. of Rochester
    • Laboratory for Laser Energetics
    • LLE-UR
    • LLE, Univ. of Rochester
    • Laboratory for Laser Energetics, University of Rochester
    • Lab for Laser Energetics