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.

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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