Dynamic Shell Stability to Low-Mode Perturbations

ORAL

Abstract

A novel design concept in direct drive inertial confinement fusion utilizes a shell, which is developed from a spherical pellet of liquid DT and then imploded to produce conventional central hot-spot ignition [see Goncharov et al., Phys. Rev. Lett. 125, 065001 (2020)]. The stability of such a dynamic shell to short- and long-wavelength perturbations is of a great interest and importance since these perturbations can result in degradation of implosion performance. We investigate the evolution long-wavelength asymmetries (with spherical modes L < 50) in dynamic shell designs using the 3-D hydrodynamic code ASTER. Simulations help to identify the dependency of implosion performance on assumed mode perturbations. Results of these simulations will guide designs of proof-of-principal experiments on dynamic shell formation on OMEGA and NIF. This material is based upon work supported by the Department of Energy National Nuclear Security Administration under Award Number DE-NA0003856 and ARPA-E BETHE Grant No. DE-FOA-0002212.

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Presenters

  • Igor V Igumenshchev

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

Authors

  • Igor V Igumenshchev

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

  • Valeri N Goncharov

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

  • Edward M Campbell

    • University of Rochester

  • Timothy J Collins

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

  • Michael J Rosenberg

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

  • Nathaniel Shaffer

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

  • Wolfgang R Theobald

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

  • William T Trickey

    • York Plasma Institute, Department of Physics, University of York
    • University of York
    • University of Rochester
    • Laboratory for Laser Energetics, University of Rochester
    • Laboratory for Laser Energetics, U. of Rochester
    • Laboratory for Laser Energetics

  • Rahul C Shah

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

  • Alexander Shvydky

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

  • Arnaud Colaïtis

    • CELIA
    • Centre Lasers Intenses et Applications
    • University of Bordeaux

  • Stefano Atzeni

    • Univ of Rome La Sapienza

  • Lorenso Savino

    • Univ of Roma La Sapienza