Modeling Species Transport across a V/CH Interface

ORAL

Abstract

We are developing a platform on Z to measure species transport across a V/CH interface, using an x-ray driven hohlraum to drive the sample to ~150 eV over 5 ns. Preliminary results show a change in the edge profiles over the ~5 ns heating time. Efforts to model this experiment take advantage of recent theoretical developments in multi-species plasma kinetics1,2 that have enabled development of computational tools3 for studying transport at material interfaces in experimentally relevant conditions. Here, we describe the application of this method to V/CH interface experiments conducted at the Z-facility at Sandia National laboratories, highlighting the role played by the development of strong electric fields at material interfaces and the sensitivity of these fields to interface conditions.

1Stanton & Murillo (2016): 10.1103/PhysRevE.93.043203

2Haack et al. (2017a): 10.1007/s10955-017-1824-9

3Haack et al. (2017b): 10.1103/PhysRevE.96.063310

*Sandia National Laboratories is a multimission laboratory managed and operated by National Technology & Engineering Solutions of Sandia, LLC, a wholly owned subsidiary of Honeywell International Inc., for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-NA0003525.

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Presenters

  • Kristian Beckwith

    • Sandia Natl Labs

Authors

  • Kristian Beckwith

    • Sandia Natl Labs

  • Patrick F Knapp

    • Sandia Natl Labs
    • Sandia National Laboratories

  • Michael Sean Murillo

    • Michigan State Univ
    • Michigan State University
    • The Department of Computational Mathematics, Science and Engineering, Michigan State University
    • Computational Mathematics, Science and Engineering, Michigan State University

  • Jeff Haack

    • Los Alamos National Laboratory
    • Los Alamos Natl Lab