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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).

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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