Observation of "suprathermal" ion kinetic energy in Inertial Confinement Fusion (ICF) implosions at the National Ignition Facility (NIF).

ORAL  · Invited

Abstract

Recent experiments conducted on the NIF have achieved burning plasmas, plasmas for which the dominant energy evolves from fusion itself. Neutron time-of-flight measurements of the plasma flow burn-averaged velocities developed for the ICF program at NIF provide a part per 10,000 measurement precision of the collective plasma motion, as well as a 2 keV precision of the mean neutron kinetic energy. This new diagnostic capability reveals that “high performing” ICF implosions depart from the “hydrodynamic” expectation relating the neutron mean energy to the ion temperature. This departure is a signature of an ion kinetic energy population increase over the Maxwellian behavior of a hydrodynamic plasma. 

*Prepared by LLNL under Contract DE-AC52-07NA27344.LLNL-ABS-824308

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Presenters

  • Edward P Hartouni

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Lab

Authors

  • Edward P Hartouni

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Lab

  • Alastair S Moore

    • Lawrence Livermore Natl Lab

  • Aidan C Crilly

    • Imperial College London
    • CIFS, The Blackett Laboratory, Imperial College London

  • Brian Appelbe

    • Imperial College London
    • Imperial College, London

  • Peter A Amendt

    • Lawrence Livermore Natl Lab

  • Kevin L Baker

    • Lawrence Livermore Natl Lab

  • Daniel T Casey

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Laboratory

  • Daniel S Clark

    • Lawrence Livermore Natl Lab

  • Tilo Doeppner

    • Lawrence Livermore National Laboratory
    • Lawrence Livermore Natl Lab

  • Mark J Eckart

    • Lawrence Livermore Natl Lab

  • John E Field

    • Lawrence Livermore Natl Lab

  • Maria Gatu-Johnson

    • MIT Plasma Science and Fusion Center
    • MIT PSFC
    • MIT
    • Massachusetts Institute of Technology (MIT)
    • Massachusetts Institute of Technology MI

  • Gary P Grim

    • Lawrence Livermore National Laboratory
    • Lawrence Livermore Natl Lab

  • Robert Hatarik

    • Lawrence Livermore Natl Lab

  • Justin Jeet

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Laboratory

  • Shaun M Kerr

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Laboratory

  • Joe Kilkenny

    • GENERAL ATOMICS

  • Annie L Kritcher

    • LLNL
    • Lawrence Livermore National Laboratory
    • Lawrence Livermore Natl Lab
    • University of California, Berkeley

  • Kevin D Meany

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

  • Jose L Milovich

    • Lawrence Livermore Natl Lab

  • David H Munro

    • Lawrence Livermore Natl Lab

  • Ryan C Nora

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Laboratory

  • Arthur E Pak

    • Lawrence Livermore Natl Lab

  • Joseph E Ralph

    • Lawrence Livermore Natl Lab

  • Harry F Robey

    • Lawrence Livermore Natl Lab

  • James S Ross

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

  • David J Schlossberg

    • Lawrence Livermore Natl Lab

  • Scott M Sepke

    • Lawrence Livermore Natl Lab
    • Lawrence Livermore National Laboratory

  • Brian K Spears

    • Lawrence Livermore Natl Lab

  • Chris V Young

    • Lawrence Livermore National Laboratory
    • Lawrence Livermore Natl Lab

  • Alex B Zylstra

    • Lawrence Livermore Natl Lab