Material Strength Hohlraum Development

ORAL

Abstract

We have demonstrated Omega hohlraums that remain open past 80 ns. These hohlraums deliver a drive that is uniform over a 1 mm$^{2}$ area (1). We also demonstrated hohlraums on Janus, a 2-beam 800 J facility at LLNL, with a uniform area 500 $\mu $m in diameter. These hohlraums drive ICE configurations, in which the hohlraum radiation drive shocks up an ablator, which then unloads across a vacuum gap to quasi-isnetropically drive a metal foil. We have also devised a new technique to measure M-band radiation preheat. These hohlraums will be extended to NIF in 2008. (1) R.F. Smith, S.M. Pollaine, S.J. Moon, H.S. Park, K.T. Lorenz, P.M. Celliers, J.H. Eggert, G.W. Collins, ``High planarity x-ray drive for ultra-fast shockless-compression experiments,'' accepted Physics of Plasmas (2007)

*This work was performed under the auspices of the U.S. Department of Energy by the University of California, Lawrence Livermore National Laboratory under contract No. W-7405-Eng-48.

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Authors

  • Stephen Pollaine

    • Lawrence Livermore National Laboratory

  • Raymond Smith

    • Lawrence Livermore National Laboratory
    • Lawrence Livermore National Laboratory, Livermore

  • Bruce Remington

    • Lawrence Livermore National Laboratory
    • Lawrence Livermore National Laboratory, Livermore

  • David Braun

    • Lawrence Livermore National Laboratory

  • Hye-Sook Park

    • Lawrence Livermore National Laboratory

  • Gilbert W. Collins

    • Lawrence Livermore National Laboratory
    • LLNL