Target gain and sensitivity to low-mode asymmetry at NIF

ORAL

Abstract

The NIF implosion experiment N221204 produced more than 3 MJ of fusion yield and surpassed unity target gain for the first time. The predecessor experiment, N220919, and a subsequent experiment, N230618, had significant low-mode asymmetries (2 and 1 respectively) relative to N221204. While this design has sufficient ignition margin that the degraded experiments still surpassed Lawson's criterion for ignition and produced yields exceeding one MJ, both were degraded by a factor of ~2 in yield and therefore had target gains below unity. The data therefore provide a unique dataset on our sensitivity to low-mode asymmetry in the regime of ignition and burn propagation.

*This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. LLNL-ABS-851264

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Presenters

  • Alex Zylstra

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Laboratory

Authors

  • Alex Zylstra

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Laboratory

  • David Schlossberg

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Laboratory

  • Daniel T Casey

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Laboratory

  • Andrea Kritcher

    • Lawrence Livermore National Laboratory

  • Arthur E Pak

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Laboratory

  • Brian J MacGowan

    • Lawrence Livermore Natl Lab

  • Joseph E Ralph

    • Lawrence Livermore Natl Lab

  • Laurent Divol

    • Lawrence Livermore Natl Lab
    • LLNL
    • Lawrence Livermore National Laboratory

  • Kelli D Humbird

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Laboratory

  • Matthias Hohenberger

    • Lawrence Livermore Natl Lab

  • Eduard L Dewald

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Laboratory

  • Richard M Bionta

    • Lawrence Livermore Natl Lab

  • Kelly Hahn

    • Lawrence Livermore National Laboratory
    • Lawrence Livermore Natl Lab

  • Mike S Rubery

    • LLNL
    • Lawrence Livermore National Laboratory
    • Lawrence Livermore Natl Lab

  • Alastair S Moore

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Laboratory

  • Benjamin Bachmann

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Laboratory

  • Shahab Khan

    • Lawrence Livermore Natl Lab

  • Paul T Springer

    • LLNL
    • Lawrence Livermore Natl Lab

  • Omar Hurricane

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Laboratory

  • Otto L Landen

    • Lawrence Livermore National Laboratory
    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Lab

  • Matthew Freeman

    • Los Alamos National Laboratory
    • Los Alamos National Lab
    • Los Alamos Natl Lab

  • Mora Durocher

    • Los Alamos National Laboratory
    • Los Alamos National Lab

  • Verena Geppert-Kleinrath

    • Los Alamos National Laboratory
    • Los Alamos National Lab

  • Kevin D Meaney

    • LANL
    • Los Alamos National Laboratory

  • Hermann Geppert-Kleinrath

    • Los Alamos National Laboratory