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Numerical study of the advanced target design for FIREX-I

机译：FIREX-I高级目标设计的数值研究

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摘要

In the fast ignition (FI) scheme, at first high density fuel core plasma is assembled by an implosion laser and then heated by a peta watt laser to achieve the fusion burning condition. A typical target for FI is a shell fitted with a reentrant Au cone to keep a path for the heating laser clean. Recently, for the FIREX-I scale size experiment, the CH tip of the guiding cone has advantages from the viewpoint of the generation of hot electrons and hot electron transport. As a result, from the viewpoint of implosion dynamics, cone-guided implosion with the CH tip is studied using the two-dimensional radiation hydrodynamic code. Two Shockwaves caused by the leading shock of implosion and jet from the core determine the breakup time of the tip. With a sophisticated target and laser pulse shape design, CH, CD or other low-Z material tips will be realized without breaking up the cone tip before the maximum compression timing and debasement of the implosion performance.
机译：在快速点火（FI）方案中，首先通过内爆激光组装高密度燃料堆芯等离子体，然后通过pet watt激光加热以达到聚变燃烧条件。 FI的典型目标是装有凹角金锥的外壳，以保持加热激光器清洁的路径。近来，对于FIREX-I标尺尺寸实验，从产生热电子和热电子传输的角度来看，导锥的CH尖端具有优势。结果，从内爆动力学的角度出发，使用二维辐射流体动力学代码研究了带有CH尖端的圆锥导向内爆。由内爆和射流的超前冲击引起的两个冲击波决定了尖端的破裂时间。通过复杂的靶标和激光脉冲形状设计，可以在最大压缩时间和内爆性能降低之前实现CH，CD或其他低Z材料尖端的破碎，而不会破坏锥形尖端。

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  • 来源
    《Nuclear fusion》 |2009年第7期|75028.1-75028.6|共6页
  • 作者

    H. Nagatomo; T. Johzaki; H. Sakagami; Y. Sentoku; A. Sunahara; T. Taguchi; H. Shiraga; H. Azechi; K. Mima;

  • 作者单位

    Institute of Laser Engineering, Osaka University, Suita, Osaka, 565-0871 Japan;

    Institute of Laser Engineering, Osaka University, Suita, Osaka, 565-0871 Japan;

    Department of Simulation Science, National Institute for Fusion Science, Toki, Gifu, 509-5292 Japan;

    Department of Physics, University of NV, Reno, Nevada, USA;

    Institute for Laser Technology, Suita, Osaka, 565-0871 Japan;

    Department of Electrical and Electronic Engineering, Setsunan University, Neyagawa, Osaka, 572-8508 Japan;

    Institute of Laser Engineering, Osaka University, Suita, Osaka, 565-0871 Japan;

    Institute of Laser Engineering, Osaka University, Suita, Osaka, 565-0871 Japan;

    Institute of Laser Engineering, Osaka University, Suita, Osaka, 565-0871 Japan;

  • 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);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    fast ignition of compressed fusion fuels; target design and fabrication (Some figures in this article are in colour only in the electronic version);

    机译：压缩聚变燃料快速点火;目标设计和制造（本文中的某些数字仅在电子版本中为彩色）;

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