Characterizing counter-streaming interpenetrating plasmas relevant to astrophysical collisionless shocks

DOI PDF 被引用文献23件 参考文献14件
  • J. S. Ross
    Lawrence Livermore National Laboratory 1 , P.O. Box 808, Livermore, California 94551, USA
  • S. H. Glenzer
    Lawrence Livermore National Laboratory 1 , P.O. Box 808, Livermore, California 94551, USA
  • P. Amendt
    Lawrence Livermore National Laboratory 1 , P.O. Box 808, Livermore, California 94551, USA
  • R. Berger
    Lawrence Livermore National Laboratory 1 , P.O. Box 808, Livermore, California 94551, USA
  • L. Divol
    Lawrence Livermore National Laboratory 1 , P.O. Box 808, Livermore, California 94551, USA
  • N. L. Kugland
    Lawrence Livermore National Laboratory 1 , P.O. Box 808, Livermore, California 94551, USA
  • O. L. Landen
    Lawrence Livermore National Laboratory 1 , P.O. Box 808, Livermore, California 94551, USA
  • C. Plechaty
    Lawrence Livermore National Laboratory 1 , P.O. Box 808, Livermore, California 94551, USA
  • B. Remington
    Lawrence Livermore National Laboratory 1 , P.O. Box 808, Livermore, California 94551, USA
  • D. Ryutov
    Lawrence Livermore National Laboratory 1 , P.O. Box 808, Livermore, California 94551, USA
  • W. Rozmus
    Lawrence Livermore National Laboratory 1 , P.O. Box 808, Livermore, California 94551, USA
  • D. H. Froula
    Laboratory for Laser Energetics 3 , 250 E. River Road, Rochester, New York 14623, USA
  • G. Fiksel
    Laboratory for Laser Energetics 3 , 250 E. River Road, Rochester, New York 14623, USA
  • C. Sorce
    Laboratory for Laser Energetics 3 , 250 E. River Road, Rochester, New York 14623, USA
  • Y. Kuramitsu
    Osaka University 4 , 1-1 Yamadaoka, Suita, Osaka 565-0871, Japan
  • T. Morita
    Osaka University 4 , 1-1 Yamadaoka, Suita, Osaka 565-0871, Japan
  • Y. Sakawa
    Osaka University 4 , 1-1 Yamadaoka, Suita, Osaka 565-0871, Japan
  • H. Takabe
    Osaka University 4 , 1-1 Yamadaoka, Suita, Osaka 565-0871, Japan
  • R. P. Drake
    University of Michigan 5 , Ann Arbor, Michigan 48109, USA
  • M. Grosskopf
    University of Michigan 5 , Ann Arbor, Michigan 48109, USA
  • C. Kuranz
    University of Michigan 5 , Ann Arbor, Michigan 48109, USA
  • G. Gregori
    University of Oxford 6 Department of Physics, , Parks Road, Oxford OX1 3PU, United Kingdom
  • J. Meinecke
    University of Oxford 6 Department of Physics, , Parks Road, Oxford OX1 3PU, United Kingdom
  • C. D. Murphy
    University of Oxford 6 Department of Physics, , Parks Road, Oxford OX1 3PU, United Kingdom
  • M. Koenig
    CNRS, Universit Paris 6 7 LULI, Ecole Polytechnique, , 91128 Palaiseau, France
  • A. Pelka
    CNRS, Universit Paris 6 7 LULI, Ecole Polytechnique, , 91128 Palaiseau, France
  • A. Ravasio
    CNRS, Universit Paris 6 7 LULI, Ecole Polytechnique, , 91128 Palaiseau, France
  • T. Vinci
    CNRS, Universit Paris 6 7 LULI, Ecole Polytechnique, , 91128 Palaiseau, France
  • E. Liang
    Rice University 8 , P. O. Box 1892, Houston, Texas 77251-1892, USA
  • R. Presura
    University of Nevada 9 , Reno, 1664 N. Virginia Street, Reno, New York 89557-0208, USA
  • A. Spitkovsky
    Princeton University 10 , Princeton, New Jersey 08544, USA
  • F. Miniati
    Physics Department 11 , Wolfgang-Pauli-Strasse 27, ETH-Zrich, CH-8093 Zrich, Switzerland
  • H.-S. Park
    Lawrence Livermore National Laboratory 1 , P.O. Box 808, Livermore, California 94551, USA

抄録

<jats:p>A series of Omega experiments have produced and characterized high velocity counter-streaming plasma flows relevant for the creation of collisionless shocks. Single and double CH2 foils have been irradiated with a laser intensity of ∼ 1016 W/cm2. The laser ablated plasma was characterized 4 mm from the foil surface using Thomson scattering. A peak plasma flow velocity of 2000 km/s, an electron temperature of ∼ 110 eV, an ion temperature of ∼ 30 eV, and a density of ∼ 1018 cm−3 were measured in the single foil configuration. Significant increases in electron and ion temperatures were seen in the double foil geometry. The measured single foil plasma conditions were used to calculate the ion skin depth, c/ωpi∼0.16 mm, the interaction length, ℓint, of ∼ 8 mm, and the Coulomb mean free path, λmfp∼27mm. With c/ωpi≪ℓint≪λmfp, we are in a regime where collisionless shock formation is possible.</jats:p>

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