Spectroscopic and MHD modeling of magnetized cylindrical implosions using a laser-produced seed B-field

POSTER

Abstract

We present a comprehensive simulation study of magnetized cylindrical implosions at OMEGA using laser-driven capacitor-coil targets to produce a seed, pre-compressed B field. Ar-doped, D2-filled cylindrical targets will be symmetrically imploded using a 15 kJ, 1.5 ns laser drive. The plasma dynamics are numerically investigated in 2-D with the MHD code GORGON, which predicts a B-field exceeding 10 kT over the entire compressed core and significantly higher temperatures compared to the unmagnetized case. Synthetic X-ray emission spectra computed with the NLTE atomic kinetics code ABAKO and detailed Stark-Zeeman broadening codes (MERL, PPP-B, DinMol) show distinctive spectral features for a magnetized implosion and the case without seed B-field. These results suggest the use of Argon K-shell spectroscopy to extract plasma conditions throughout the implosion and bring information about changes in the hydrodynamic behaviour due to the impact of the B-field.

Authors

  • R. Florido

    ULPGC, Spain

  • C.A. Walsh

    Lawrence Livermore National Laboratory, LLNL, USA, Lawrence Livermore Natl Lab

  • Mathieu Bailly-Grandvaux

    UCSD CER, UCSD, CER, UCSD, USA, University of California, San Diego

  • F. N. Beg

    University of California San Diego, University of California, San Diego, UCSD, CER, UCSD, USA

  • Christopher McGuffey

    UCSD CER, UCSD, UCSSD, CER, UCSD, USA, University of California, San Diego

  • A. Calisti

    Univ. Aix-Marseille, CNRS, PIIM, France

  • S. Ferri

    Univ. Aix-Marseille, CNRS, PIIM, France

  • M.A. Gigosos

    Univ. Valladolid, Spain

  • R.C. Mancini

    University of Nevada, Reno, Univ of Nevada - Reno, University of Nevada Reno, Dept. Physics, UNR, USA, UNR, USA

  • T. Nagayama

    Sandia National Laboratory, SNL, USA, Sandia National Laboratories

  • J.J. Honrubia

    ETSIAE, UPM, Spain

  • J.R. Davies

    Laboratory for Laser Energetics, U. Rochester, Laboratory for Laser Energetics, U. of Rochester, LLE, LLE, Univ. Rochester, USA, University of Rochester, U. of Rochester, NY, LLE, UR, USA

  • F. Suzuki-Vidal

    Imperial College London, UK, Imperial College London

  • V. T. Tikhonchuk

    Univ. Bordeaux, CNRS, CEA, CELIA

  • J. J. Santos

    CELIA, Univ. Bordeaux, CNRS, CEA, CELIA