Dense Plasma Focus Simulations at LLNL

POSTER

Abstract

Dense plasma focus (DPF) Z-pinches are compact pulsed power-driven devices with coaxial electrodes. The discharge of a DPF consists of three distinct phases: generation of a plasma sheath, a plasma rail gun phase where the sheath is accelerated down the electrodes, and finally an implosion phase where the plasma stagnates into a z-pinch geometry. During the z-pinch phase, DPFs can produce MeV ion beams, x-rays and neutrons. The MegaJOuLe Neutron Imaging Radiography (MJOLNIR) DPF was brought online at the end of 2018 and was recently upgraded to 2 MJ of stored energy. Kinetic simulations using the code Chicago and results from a reduced physics model will be presented for shots utilizing the new MJOLNIR powerflow upgrade.



This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory (LLNL) under Contract DE-AC52- 07NA27344 and with support from the Computing Grand Challenge program at LLNL. LLNL-ABS-836909

*This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory (LLNL) under Contract DE-AC52- 07NA27344 and with support from the Computing Grand Challenge program at LLNL.

Presenters

  • Anthony J Link

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Laboratory

Authors

  • Anthony J Link

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Laboratory

  • Enrique Anaya

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Laboratory

  • Michael G Anderson

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Laboratory

  • Justin R Angus

    • Lawrence Livermore National Laboratory
    • Lawrence Livermore Natl Lab

  • Paul C Campbell

    • Lawrence Livermore National Laboratory

  • Steven F Chapman

    • Lawrence Livermore National Laboratory
    • Lawrence Livermore National Lab
    • Lawrence Livermore Natl Lab
    • LLNL

  • Christopher M Cooper

    • Lawrence Livermore National Laboratory
    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Lab
    • LLNL

  • Owen B Drury

    • Lawrence Livermore National Laboratory
    • Lawrence Livermore Natl Lab

  • Clement S Goyon

    • Lawrence Livermore National Laboratory
    • Lawrence Livermore Natl Lab

  • Drew P Higginson

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Laboratory

  • Luis Frausto

    • Lawrence Livermore National Laboratory
    • Lawrence Livermore Natl Lab

  • Sheng Jiang

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Laboratory

  • Don Max

    • Mission Support and Test Services

  • Matthew M McMahon

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Laboratory

  • Sophia V Rocco

    • Lawrence Livermore National Laboratory
    • Lawrence Livermore Natl Lab

  • James K Walters

    • Lawrence Livermore National Laboratory
    • Lawrence Livermore Natl Lab

  • Amanda E Youmans

    • Lawrence Livermore natl laboratory
    • Lawrence Livermore Natl Lab

  • Andrea E Schmidt

    • Lawrence Livermore National Laboratory