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