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Scaling the SQ-n implosion platform to full energy on the National Ignition Facility

ORAL

Abstract



High compression and high areal density are essential to reaching high gain in inertial confinement fusion implosions. However, increasing compression in implosion designs using high density carbon (HDC) ablators at the National Ignition Facility has proven challenging, likely due to increased hydrodynamic instability growth with increased compression. The SQ-n implosion platform was developed to address this limitation by carefully controlling stability through all phases of the implosion. Initial sub-scale experiments using 1.3–1.5 MJ of laser drive energy have been successful in increasing measured compressions by 20–35% compared to other sub-scale designs using HDC ablators. In the coming year, a full- scale version of SQ-n driven by 1.9 MJ of laser energy will be tested to assess the impact of improved compression in the burning plasma regime. This talk will review the state of this design and plans for the coming full-scale campaign.


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Presenters

  • Daniel S Clark

    Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory

Authors

  • Daniel S Clark

    Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory

  • Kevin Baker

    Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory

  • Daniel T Casey

    Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory

  • Laurent Divol

    Lawrence Livermore National Laboratory

  • Eduard L Dewald

    Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory

  • Alexandre Do

    Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory, LLNL

  • Tina Ebert

    Lawrence Livermore National Laboratory, Lawrence Livermore Natl Lab

  • Gareth Hall

    Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory

  • Andrea Kritcher

    Lawrence Livermore National Laboratory

  • Otto L Landen

    Lawrence Livermore National Laboratory, Lawrence Livermore Natl Lab, Lawrence Livermore National Lab

  • Derek Mariscal

    Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory

  • Edward V Marley

    Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory

  • Marius Millot

    LLNL, Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory

  • Jose Milovich

    Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory

  • Arthur E Pak

    Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory

  • Sonja Rogers

    Lawrence Livermore National Laboratory

  • Vladimir A Smalyuk

    Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory

  • David J Strozzi

    Lawrence Livermore Natl Lab, LLNL, Lawrence Livermore National Laboratory

  • Riccardo Tommasini

    Lawrence Livermore National Laboratory

  • Christopher R Weber

    Lawrence Livermore National Laboratory, Lawrence Livermore Natl Lab, Lawrence Livermore National Lab

  • Brandon Woodworth

    Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory, LLNL