REDISTRIBUTION OF SOLID FUEL LAYER IN LASER FUSION TARGET BY ELECTRODE-LESS DISCHARGE OF MICROWAVE

微波无极放电激光聚变靶中固体燃料层的重新分布

基本信息

  • 批准号:
    06680478
  • 负责人:
  • 金额:
    $ 1.34万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)
  • 财政年份:
    1994
  • 资助国家:
    日本
  • 起止时间:
    1994 至 1995
  • 项目状态:
    已结题

项目摘要

Plasma layring technique to make a cryogenic target for a laser fusion reactor has been developed. A 6-mm-diameter quartz shell housed in a microwave cavity was cooled to 10 K to freeze appropriate amount of deuterium inside. A nonuniform solid deuterium layr in the shell was successfully redistributed into uniform one by initiating a glow discharge in the void.1) The time constant for redistribution was 80 second. This time constant is much less than that driven by heat initiated by tritium decays. This short time constant is beneficial for the future laser-fusion reactor-system since it can reduce the tritium inventory in a pellet factory.2) The time constant for redistribution is primary determined by cooling performance of the shell and the time constant has week dependence on the power of the microwave. Reducing the temperature of the cooling helium is most effective to shorten the time constant.3) Solid deuterium, which was initially opaque due to cracks, turned into transparent by heating with the glow discharge. Cracks in the solid were removed toward the heat source through a sublimation / deposition cycle. This is an important result to obtain a high quality solid fuel layr for the laser fusion target.
研制了一种激光聚变堆低温靶的等离子体沉积技术。将一个直径为6 mm的石英壳置于微波腔中,冷却至10 K,以将适量的氘冷冻在其中。通过在空腔中引发辉光放电,成功地将壳层中不均匀的固体氘层重新分布为均匀的固体氘层。这个时间常数比氚衰变引发的热驱动的时间常数小得多。该时间常数较短,有利于未来激光聚变反应堆系统的发展,因为它可以减少芯块工厂中的氚库存。2)再分布时间常数主要由壳体的冷却性能决定,而时间常数对微波功率的依赖性较弱。降低冷却氦气的温度是缩短时间常数的最有效方法。3)固体氘,最初由于裂纹是不透明的,通过辉光放电加热变成透明的。通过升华/沉积循环,固体中的裂缝被移向热源。这对获得高质量的激光聚变靶固体燃料层具有重要意义。

项目成果

期刊论文数量(8)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
C. M. Chen, T. Norimatsu, Y. Izawa, T. Yamanaka, and S. Nakai: "Heating uniformity of a microwave discharge plasma to redistribute a solid fuel layer inside a cryogenic target for inertial confinement fusion" Journal of Vacuum Science and Technology A. 13
C. M. Chen、T. Norimatsu、Y. Izawa、T. Yamanaka 和 S. Nakai:“微波放电等离子体的加热均匀性,以重新分布惯性约束聚变低温靶内的固体燃料层”真空科学与技术杂志 A
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    0
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C.M.CHEN: "HEATING UNIFORMITY OF A MICROWAVE OF A MICROWAVE DISCHARGE PLASMA TO REDISTRIBUTE A SOLID FUEL LAYER INSIDE A CRYOGENIC TARGET FOR INERTIAL CONFINEMENT FUSION" J.VAC.SCI.TECHNOL.A.
C.M.CHEN:“微波放电等离子体的微波加热均匀性以重新分布低温靶内的固体燃料层以进行惯性约束聚变”J.VAC.SCI.TECHNOL.A。
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    0
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T.Norimatsu: "Cryogenic targets and related technologies at ILE Osaka university" Journal of Vacuum Science and Technology. 12. 1293-1301 (1994)
T.Norimatsu:“大阪大学 ILE 的低温靶材及相关技术”《真空科学与技术杂志》。
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    0
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C.M.Chen: "Heating uniformity of a microwave discharge plasma to redistribute a solid fuel layer inside a cryogenic target for inertial confinement fusion" Journal of Vacuum Science and Technologh A. 13. 2908-2913 (1995)
C.M.Chen:“微波放电等离子体的加热均匀性,以重新分布惯性约束聚变低温靶内的固体燃料层”真空科学与技术期刊 A. 13. 2908-2913 (1995)
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NORIMATSU Takayoshi其他文献

Current status of LFEX laser and Target fabrication for FIREX-I project
LFEX 激光器和 FIREX-I 项目目标制造的现状
  • DOI:
  • 发表时间:
    2007
  • 期刊:
  • 影响因子:
    0
  • 作者:
    NORIMATSU Takayoshi;NAGAI Keiji;YANG Han;YAMANAKA Kentaro;FUJIMURA;Takashi;NEMOTO Nobukatsu;NAKAI Mitsuo;IWAMOTO Akifumi;SHIRAGA Hiroyuki;AZECHI Hiroshi;MIMA Kunioki
  • 通讯作者:
    MIMA Kunioki
Control of Nanostructure and Thickness of Foam Capsule for FIREX-I using Phase-Transfer Catalyst and Tailored Polymers
使用相转移催化剂和定制聚合物控制 FIREX-I 泡沫胶囊的纳米结构和厚度
  • DOI:
  • 发表时间:
    2007
  • 期刊:
  • 影响因子:
    0
  • 作者:
    NAGAI Keiji;YANG Han;YAMANAKA Kentaro;FUJIMURA;Takashi;NEMOTO Nobukatsu;NAKAI Mitsuo;NORIMATSU Takayoshi;IWAMOTO Akifumi;SHIRAGA Hiroyuki;AZECHI Hiroshi;MIMA Kunioki
  • 通讯作者:
    MIMA Kunioki

NORIMATSU Takayoshi的其他文献

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{{ truncateString('NORIMATSU Takayoshi', 18)}}的其他基金

Researches on stagnation of ablated material from liquid wall of laser fusion reactor
激光聚变反应堆液壁烧蚀材料的停滞研究
  • 批准号:
    20560765
  • 财政年份:
    2008
  • 资助金额:
    $ 1.34万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Research of aerosol formation of liquid wall laser fusion reactor by electrical discharge method
放电法液壁激光聚变反应堆气溶胶形成研究
  • 批准号:
    18560792
  • 财政年份:
    2006
  • 资助金额:
    $ 1.34万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Estimation on contamination of final optics with metal vapor in laser fusion reactor with liquid wall
液壁激光聚变反应堆中金属蒸气对最终光学器件的污染估计
  • 批准号:
    16560721
  • 财政年份:
    2004
  • 资助金额:
    $ 1.34万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)
Research on Influence of Metal-Vapor Deposition on Target Injected into a Laser Fusion Reactor
金属气相沉积对激光聚变反应堆注入靶的影响研究
  • 批准号:
    12680491
  • 财政年份:
    2000
  • 资助金额:
    $ 1.34万
  • 项目类别:
    Grant-in-Aid for Scientific Research (C)

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辐照燃料颗粒的数字放射自显影
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