APS Logo

Control of Shell Convergence and Deceleration Rayleigh–Taylor Growth in Dynamic Shell Ignition Designs

ORAL

Abstract

The dynamic shell ignition target designs use a homogeneous-density fuel sphere (liquid of solid) inside a wetted-foam shell[1] to create a fuel shell dynamically by appropriately shaping the laser pulse. Compared to the nominal layered targets, the new designs offer greater flexibility in controlling density of the central, lower-density part of the target by changing the strength of the initial shocks launched into the fuel ball. This, in turn, affects the shell convergence ratio (CR) and Rayleigh–Taylor (RT) growth amplification during deceleration. This talk will review design options to control CR and RT growth in dynamic shell designs.

[1] V. N. Goncharov et al., Phys. Rev. Lett. 125, 065001 (2020).

–

Publication: V. N. Goncharov et al., Phys. Rev. Lett. 125, 065001 (2020)

Presenters

  • Valeri N Goncharov

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

Authors

  • Valeri N Goncharov

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

  • Yousef Lawrence

    University of Chicago, University of Chicago; Laboratory for Laser Energetics, U. of Rochester

  • 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

  • Igor V Igumenshchev

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

  • Ka Ming Woo

    Lab for Laser Energetics, Laboratory 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

  • Timothy J Collins

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