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Reconstruction of experimental core conditions of OMEGA high performance implosions

ORAL

Abstract

OMEGA cryogenic shot 96806 produced a yield of 1.55 10^14 and areal density of about 160 mg/cm^2. To better understand the implosion performance, 2 dimensional simulations are used to reproduce experimental observables for this shot such as yield, areal density, hot-spot size, neutron-averaged ion temperature, emission averaged electron temperature, burn-width and bang-time. This was done by extracting hydrodynamic profiles at peak velocity from a 1-D LILAC simulation and by simulating the deceleration phase in DEC2D with imposed low mode and mid-mode of selected amplitude to match the aforementioned observables. The initial profiles are modified to mimic small yield degradation arising from laser imprinting and Helium build up in gas. Then the extrapolation to 2.0 MJ of symmetric illumination is carried out by assuming hydrodynamic scaling. In addition, the performance of scaled implosions is projected with corrected (removed) individual modes.

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Presenters

  • Dhrumir P Patel

    University of Rochester

Authors

  • Dhrumir P Patel

    University of Rochester

  • Riccardo Betti

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

  • Ka Ming M Woo

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

  • Varchas Gopalaswamy

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

  • Rahul C Shah

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

  • Duc Cao

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