Opacity-on-NIF Backlighter Design

ORAL

Abstract

Stronger backlighters are needed as iron opacity experiments at the National Ignition Facility (NIF) approach higher temperatures and densities. Cassio was used to explore backlighter design, simulate capsule implosions, and calculate signal output. Cassio is an Eularian radiation-hydrodynamics code developed at Los Alamos to study high-energy-density physics. The code was used to determine how variations of the geometries, capsule thicknesses, density gradients, and laser details affect backlighter performance. FESTR, a spectral postprocessor, was also used to obtain detailed, time-dependent spectral output from the Cassio simulations.

*This work was supported by the U.S. Department of Energy through the Los Alamos National Laboratory. Los Alamos National Laboratory is operated by Triad National Security, LLC, for the National Nuclear Security Administration of U.S. Department of Energy (Contract No. 89233218CNA000001).

Presenters

  • Kyzer Gerez

    • Los Alamos National Laboratory

Authors

  • Kyzer Gerez

    • Los Alamos National Laboratory
  • Ethan Smith

    • Los Alamos National Laboratory
  • Natalia Krasheninnikova

    • Los Alamos National Laboratory
    • Los Alamos Natl Lab
  • Todd Urbatsch

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