Cross-Beam Energy Transfer in Simulations of NIF-Scale Shock-Ignition Experiments

ORAL

Abstract

Recent experiments at the National Ignition Facility (NIF) have characterized the laser energy coupling to the strong shock at shock-ignition--relevant laser intensities. Analysis of these experiments has shown that a significant amount of energy is scattered away from the target due to cross-beam energy transfer (CBET). This effect has generally not been accounted for in previous simulations of shock-ignition implosions. This talk will present results from 2-D DRACO simulations of these experiments using a pump-depletion model of CBET to compare with data from these experiments. Implications for previous shock-ignition designs for the NIF will be discussed. This material is based upon work supported by the Department of Energy National Nuclear Security Administration under Award Number DE-NA0003856.

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Authors

  • K.S. Anderson

    • Lab for Laser Energetics
    • LLE, Univ. of Rochester

  • Wolfgang Theobald

    • University of Rochester
    • Lab for Laser Energetics
    • Laboratory for Laser Energetics
    • LLE
    • LLE, Univ. of Rochester
    • Laboratory for Laser Energetics, U. of Rochester
    • Laboratory for Laser Energetics, University of Rochester

  • J. A. Marozas

    • Lab for Laser Energetics
    • University of Rochester
    • University of Rochester, Laboratory for Laser Energetics
    • LLE, Univ. of Rochester

  • R. Scott

    • STFC Rutherford Appleton Lab
    • CLF, STFC Rutherford Appleton Laboratory, UK
    • Rutherford Appelton Laboratory

  • Kevin Glize

    • STFC Rutherford Appleton Lab