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A new approach to foam-lined indirect-drive NIF ignition targets

机译:泡沫衬里间接驱动NIF点火目标的新方法

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摘要

Taking full advantage of the unique laboratory environment created by the National Ignition Facility (NIF) will require the availability of foam-lined indirect-drive inertial confinement fusion targets. Here, we report on a new approach that enables fabrication of target structures that consist of a thin-walled (<30μm) ultra-low-density (<30 mg cm~(-3)) hydrocarbon foam film inside a thick-walled, ~2 mm diameter ablator shell. In contrast to previous work on direct-drive targets that started with the fabrication of foam shells, we use a prefabricated ablator as a mold to cast the foam liner within the shell. This work summarizes crucial components of this new approach, including the aerogel chemistry, filling of the ablator shell with the aerogel precursor solution with nanolitre precision, creating uniform polymer gel coatings inside the ablator capsule, supercritical drying and doping.
机译:要充分利用国家点火装置(NIF)创建的独特实验室环境,将需要使用泡沫衬里间接驱动惯性约束聚变靶。在这里,我们报告了一种新方法,该方法能够制造由厚壁内部的薄壁(<30μm)超低密度(<30 mg cm〜(-3))碳氢泡沫膜组成的目标结构,直径约2毫米的消融器外壳。与以前从直接制造泡沫壳开始的直接驱动目标的工作相反,我们使用预制的烧蚀器作为模具在壳内浇铸泡沫衬里。这项工作总结了这种新方法的关键组成部分,包括气凝胶化学,用纳升精度的气凝胶前体溶液填充消融壳,在消融囊内部形成均匀的聚合物凝胶涂层,超临界干燥和掺杂。

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  • 来源
    《Nuclear fusion》 |2012年第6期|p.1.1-1.6|共6页
  • 作者单位

    Nanoscale Synthesis and Characterization Laboratory, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA;

    Nanoscale Synthesis and Characterization Laboratory, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA;

    Nanoscale Synthesis and Characterization Laboratory, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA;

    Nanoscale Synthesis and Characterization Laboratory, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA;

    Nanoscale Synthesis and Characterization Laboratory, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA;

    Nanoscale Synthesis and Characterization Laboratory, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA;

    Nanoscale Synthesis and Characterization Laboratory, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA;

    Nanoscale Synthesis and Characterization Laboratory, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA;

    Nanoscale Synthesis and Characterization Laboratory, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA;

    Nanoscale Synthesis and Characterization Laboratory, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA;

    Nanoscale Synthesis and Characterization Laboratory, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA;

    Nanoscale Synthesis and Characterization Laboratory, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA;

    Nanoscale Synthesis and Characterization Laboratory, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA;

    Nanoscale Synthesis and Characterization Laboratory, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA;

    Nanoscale Synthesis and Characterization Laboratory, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA;

    Nanoscale Synthesis and Characterization Laboratory, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA;

    Nanoscale Synthesis and Characterization Laboratory, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA;

    Nanoscale Synthesis and Characterization Laboratory, Lawrence Livermore National Laboratory, 7000 East Avenue, Livermore, CA 94550, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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