Advanced Target Design for the FIREX-I Project

DOI Web Site 9 References
  • AZECHI Hiroshi
    Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565-0871, Japan
  • NAKAI Mitsuo
    Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565-0871, Japan
  • HOMMA Hirofumi
    Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565-0871, Japan
  • JOHZAKI Tomoyuki
    Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565-0871, Japan
  • KOGA Mayuko
    Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565-0871, Japan
  • MIMA Kunioki
    Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565-0871, Japan
  • MIYANAGA Noriaki
    Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565-0871, Japan
  • MURAKAMI Masakatsu
    Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565-0871, Japan
  • NAGATOMO Hideo
    Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565-0871, Japan
  • NAGAI Keiji
    Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565-0871, Japan
  • NAKAMURA Tatsufumi
    Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565-0871, Japan
  • NISHIHARA Katsunobu
    Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565-0871, Japan
  • NISHIMURA Hiroaki
    Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565-0871, Japan
  • NORIMATSU Takayoshi
    Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565-0871, Japan
  • SAKAWA Youichi
    Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565-0871, Japan
  • SHIGEMORI Keisuke
    Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565-0871, Japan
  • SHIRAGA Hiroyuki
    Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565-0871, Japan
  • IWAMOTO Akifumi
    National Institute for Fusion Science, Oroshi-cho, Toki, Gifu 509-5292, Japan
  • MITO Toshiyuki
    National Institute for Fusion Science, Oroshi-cho, Toki, Gifu 509-5292, Japan
  • SAKAGAMI Hitoshi
    National Institute for Fusion Science, Oroshi-cho, Toki, Gifu 509-5292, Japan
  • MOTOJIMA Osamu
    National Institute for Fusion Science, Oroshi-cho, Toki, Gifu 509-5292, Japan
  • KODAMA Ryosuke
    Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
  • TANAKA Kazuo A.
    Graduate School of Engineering, Osaka University, 2-1 Yamada-oka, Suita, Osaka 565-0871, Japan
  • SUNAHARA Atsushi
    Institute for Laser Technology, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565-0871, Japan

Abstract

Cryogenically cooled foam shells with deuterium and tritium fuels are expected to be utilized in the fast ignition realization experiment project of ILE, Osaka University, to demonstrate efficient heating of properly compressed fuel plasmas. These targets consist of a foam shell with solid fuel and a conical light guide for additional heating with an ultra-high intensity laser beam, in accordance with previous preliminary experiments [R. Kodama et al., Nature 412, 798 (2001).] Recent theoretical predictions and elemental experiments have suggested some advanced modifications to enhance the coupling efficiency of fast heating and improve implosion performance. The five major points of these improvements are as follows: 1) use of a low-Z foam layer on the inner surface of the cone; 2) use of a double-layered cone as a light guide; 3) use of a low-Z plastic layer on the outer surface of the cone; 4) adding a Br-doped plastic ablator to the fuel capsule; and 5) evacuation of the target center.

Journal

  • Plasma and Fusion Research

    Plasma and Fusion Research 4 S1001-S1001, 2009

    The Japan Society of Plasma Science and Nuclear Fusion Research

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