Stability of Dynamic Shell Targets Under 2D Low-Mode Perturbations

ORAL

Abstract

A novel inertial confinement fusion target design using liquid deuterium–tritium inside wetted-foam shells was recently proposed by V. N. Goncharov et al.[1] In these targets, a high-density outer shell is formed dynamically via the implosion, recoil, and subsequent deceleration of the capsule. Ignition is then triggered using standard implosion techniques. A high-density shell formed under such a dynamic process will be susceptible to fluid instabilities (both short and long wavelength), which can degrade implosion performance. We present a study that investigated low-mode nonuniformities in the shell using the 2-D radiation-hydrodynamics code DRACO. These simulations are used to evaluate the performance of different target designs and beam configurations.
 
[1] V. N. Goncharov et al., Phys. Rev. Lett. 125, 065001 (2020).

*Funding was provided by the ARPA-E BETHE Grant No. DE-FOA-0002212.

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Presenters

  • 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

Authors

  • 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

  • Mike M Campbell

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

  • Timothy J Collins

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

  • Igor V Igumenshchev

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

  • Nathaniel Shaffer

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