Analysis of a High-Adiabat Cryogenic Implosion on OMEGA

ORAL

Abstract

The performance of high-adiabat implosions $\agt$ 10 is marginally affected by nonuniformities because of the strong ablative stabilization. To test the validity of the one-dimensional (1-D) physics included in existing hydrocodes, a study of high-adiabat cryogenic DT implosions is carried out by comparing the results of 1-D simulations with several measured quantities. It is found that after including nonlocal transport, cross-beam energy transfer, and hot electrons, 1-D simulations reproduce most of the observables with reasonable accuracy. Since the analysis is applied to the only high-adiabat DT implosion fielded on OMEGA, these results do not fully validate the 1-D physics of current hydrocodes. However, this work shows the framework for establishing a validation capability of the 1-D physics of inertial confinement fusion implosions. This material is based upon work supported by the Department of Energy National Nuclear Security Administration under Award Number DE-NA0001944 and the Office of Fusion Energy Sciences Number DE-FG02-04ER54786.

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Authors

  • A.R. Christopherson

    • Fusion Science Center and Laboratory for Laser Energetics, U. of Rochester

  • R. Betti

    • Fusion Science Center and Laboratory for Laser Energetics, U. of Rochester

  • R. Nora

    • Fusion Science Center and Laboratory for Laser Energetics, U. of Rochester

  • R. Epstein

    • Laboratory for Laser Energetics, U. of Rochester

  • F.J. Marshall

    • Laboratory for Laser Energetics, U. of Rochester

  • C.J. Forrest

    • Laboratory for Laser Energetics, U. of Rochester

  • C. Stoeckl

    • Laboratory for Laser Energetics, U. of Rochester

  • J.A. Delettrez

    • Laboratory for Laser Energetics, U. of Rochester

  • P.B. Radha

    • Laboratory for Laser Energetics, U. of Rochester

  • J. Howard

    • Laboratory for Laser Energetics, U. of Rochester