Gatling gun approach to long duration x-ray drives for laboratory astrophysics studies

ORAL

Abstract

Laboratory astrophysics studies investigating the pillar structures in the Eagle Nebula, or photoionization studies require a steady light source of sufficient duration to recreate relevant physics. To address these experimental requirements we successfully developed a 30ns, 90eV x-ray radiation drive using a foam-filled multi-barrel (``Gatling Gun'') hohlraum driven with three 10ns pulse UV beams on the Omega EP laser system located at LLE. The multi-barrel hohlraum consisted of three adjacent Cu cavities, heated in succession to generate long duration x-ray source. The Gatling gun approach mitigated the issues of LEH closure from a single hohlraum heated for extended durations. Characterization of the Gatling gun hohlraum, using uDMX and VISAR diagnostics, will be presented.

*This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344. LLNL-ABS-640737

–

Authors

  • David Martinez

    • Lawrence Livermore National Laboratory, Livermore, CA 94550, USA
    • Lawrence Livermore National Laboratory

  • J.O. Kane

    • Lawrence Livermore National Laboratory, Livermore, CA 94550, USA

  • R.F. Heeter

    • Lawrence Livermore National Laboratory, Livermore, CA 94550, USA

  • A. Casner

    • CEA, DAM, DIF, F-91297 Arpajon, France

  • B. Villette

    • CEA, DAM, DIF, F-91297 Arpajon, France

  • R.C. Mancini

    • University of Nevada, Reno, NV, 89557, USA

  • B.A. Remington

    • Lawrence Livermore National Laboratory, Livermore, CA 94550, USA