Anode Implosion Radius Effects on Dense Plasma Focus Performance

POSTER

Abstract

Dense plasma focus (DPF) Z-pinches are compact pulsed power driven devices consisting of two coaxial electrodes, separated by an insulator, and filled with a low-density gas. MJOLNIR is a dense plasma focus (DPF) located at LLNL being developed to produce a neutron source for flash neutron radiography and has produced greater than 10^12 neutrons when driven with up to 3.8 MA. Producing a neutron source for radiography requires both a bright neutron pulse as well as the neutrons emanating from a small volume. Simulation and experimental results will be presented on neutron yield, and stagnation characteristics for anodes with a variety of implosion radii, the radius at which the implosion starts for both the 100 kA and 3 MA DPFs at LLNL.

*This work performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory (LLNL) under Contract DE-AC52-07NA27344. Computing support for this work came from the LLNL Institutional Computing Grand Challenge program. LLNL-ABS- 851332

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 National Lab
    • Lawrence Livermore National Laboratory
    • LLNL

  • Justin R Angus

    • Lawrence Livermore National Laboratory
    • LLNL

  • Paul M Campbell

    • Lawrence Livermore National Laboratory
    • LLNL

  • Steven F Chapman

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

  • Christopher Cooper

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

  • Owen B Drury

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

  • Clement S Goyon

    • Lawrence Livermore National Laboratory

  • Drew Higginson

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Laboratory

  • Luis Frausto

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

  • Sheng Jiang

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Laboratory

  • Don Max

    • Nevada National Security Site
    • Mission Support and Test Services

  • Matthew M McMahon

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Laboratory

  • Jaebum Park

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

  • Sophia V Rocco

    • LLNL
    • Lawrence Livermore National Laboratory

  • James K Walters

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

  • Amanda Youmans

    • Lawrence Livermore natl laboratory
    • Lawrence Livermore National Laboratory

  • Andrea Schmidt

    • Lawrence Livermore National Laboratory
    • LLNL