APS Logo

Using Optical Thomson Scattering to Determine Transport Properties in a Turbulent Plasma

ORAL

Abstract

Dynamo in astrophysical turbulence is a key process for the amplification of magnetic fields. The advent of high-power laser systems, such as the Laboratory for Laser Energetics' OMEGA and Lawrence Livermore National Laboratory's National Ignition Facility (NIF), has made it possible to recreate these astrophysical conditions in terrestrial laboratories. Presented here are data obtained from an experimental campaign conducted on OMEGA that aimed to demonstrate dynamo amplification. This work focuses on the optical Thomson scattering data collected to investigate the transport properties of the turbulent plasma. By time-resolving the ion-acoustic wave and electron plasma wave scattering, their autocorrelation can be used to extract relevant transport properties, such as diffusion and thermal conductivity. We intend to extend this analysis to the NIF where significant modification of heat transport is expected to occur.

–

Presenters

  • Hannah Poole

    University of Oxford

Authors

  • Hannah Poole

    University of Oxford

  • Charlotte A Palmer

    Queen's University Belfast

  • Archie F Bott

    Princeton University

  • Petros Tzeferacos

    University of Rochester, Univ of Rochester

  • Dustin Froula

    University of Rochester, Laboratory for Laser Energetics, Laboratory for Laser Energetics, U. of Rochester, Laboratory for Laser Energetics, University of Rochester

  • Joseph D Katz

    University of Rochester - Laboratory for Laser Energetics, University of Rochester Laboratory for Laser Energetics, Laboratory for Laser Energetics, University of Rochester, Laboratory for Laser Energetics, University of Rochester

  • Steven S Ross

    Lawrence Livermore Natl Lab, Lawrence Livermore National Laboratory

  • Hye-Sook Park

    Lawrence Livermore Natl Lab, LLNL

  • Yingchao Lu

    University of Rochester

  • Adam Reyes

    University of Rochester

  • George F Swadling

    Lawrence Livermore National Laboratory, Lawrence Livermore Natl Lab

  • Sam Iaquinta

    University of Oxford

  • Jena Meinecke

    University of Oxford

  • Alexander A Schekochihin

    University of Oxford

  • Don Q Lamb

    University of Chicago

  • Sean P Regan

    Laboratory for Laser Energetics, University of Rochester, University of Rochester, Laboratory for Laser Energetics, U. of Rochester

  • Gianluca Gregori

    University of Oxford