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首页> 外文期刊>Physical review letters >Observation of a Reflected Shock in an Indirectly Driven Spherical Implosion at the National Ignition Facility
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Observation of a Reflected Shock in an Indirectly Driven Spherical Implosion at the National Ignition Facility

机译：在国家点火设施上间接驱动的球形内爆中的反射冲击的观测

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摘要

A 200 μm radius hot spot at more than 2 keV temperature, 1 g/cm~3 density has been achieved on the National Ignition Facility using a near vacuum hohlraum. The implosion exhibits ideal one-dimensional behavior and 99% laser-to-hohlraum coupling. The low opacity of the remaining shell at bang time allows for a measurement of the x-ray emission of the reflected central shock in a deuterium plasma. Comparison with 1D hydrodynamic simulations puts constraints on electron-ion collisions and heat conduction. Results are consistent with classical (Spitzer-Harm) heat flux.
机译：国家点火装置在接近2keV的温度下使用200微米半径的热点，使用接近真空的真空炉实现了1 g / cm〜3的密度。内爆表现出理想的一维行为和99％的激光到大直径耦合。爆炸时剩余壳的低不透明度允许测量氘等离子体中反射的中心震动的X射线发射。与一维流体动力学模拟的比较对电子离子碰撞和热传导施加了限制。结果与经典（Spitzer-Harm）热通量一致。

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  • 来源
    《Physical review letters》 |2014年第22期|225002.1-225002.5|共5页
  • 作者

    S. Le Pape; L. Divol; L. Berzak Hopkins; A. Mackinnon; N. B. Meezan; D. Casey; J. Frenje; H. Herrmann; J. McNaney; T. Ma; K. Widmann; A. Pak; G. Grimm; J. Knauer; R. Petrasso; A. Zylstra; H. Rinderknecht; M. Rosenberg; M. Gatu-Johnson; J. D. Kilkenny;

  • 作者单位

    Lawrence Livermore National Laboratory, Livermore, California 94550, USA;

    Lawrence Livermore National Laboratory, Livermore, California 94550, USA;

    Lawrence Livermore National Laboratory, Livermore, California 94550, USA;

    Lawrence Livermore National Laboratory, Livermore, California 94550, USA;

    Lawrence Livermore National Laboratory, Livermore, California 94550, USA;

    Lawrence Livermore National Laboratory, Livermore, California 94550, USA;

    Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA;

    Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA;

    Lawrence Livermore National Laboratory, Livermore, California 94550, USA;

    Lawrence Livermore National Laboratory, Livermore, California 94550, USA;

    Lawrence Livermore National Laboratory, Livermore, California 94550, USA;

    Lawrence Livermore National Laboratory, Livermore, California 94550, USA;

    Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA;

    Laboratory for Laser Energetics, University of Rochester, 250 East River Road, Rochester, New York 14623, USA;

    Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA;

    Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA;

    Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA;

    Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA;

    Plasma Science and Fusion Center, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA;

    General Atomics Corporation, La Jolla, California 92121, USA;

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  • 正文语种 eng
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  • 关键词

    implosion symmetry and hydrodynamic instability (rayleigh-taylor, richtmyer-meshkov, imprint, etc.); X-ray and gamma-ray measurements;

    机译：内爆对称性和流体动力不稳定性（瑞利-泰勒;理查德·梅什科夫;印记等）;X射线和γ射线测量;

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