Fast ignition and related plasma physics issues with high-intensity lasers
Fast ignition and related plasma physics issues with high-intensity lasers
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高强度激光的快速点火和相关等离子体物理问题
DOI：
10.1088/0741-3335/39/5a/015
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发表时间：
1997
影响因子：
2.2
通讯作者：
K. Mima
中科院分区：
文献类型：
--
作者：
Y. Kato;Y. Kitagawa;K. Tanaka;R. Kodama;H. Fujita;T. Kanabe;T. Jitsuno;H. Shiraga;H. Takabe;M. Murakami;K. Nishihara;K. Mima
基于二维流体动力学模拟，对偏心点火等容内爆的点火条件和聚变增益进行了研究。我们表明，点火能量可以减少通过增加压缩燃料密度，虽然它是伴随着减少的融合增益。给出了在过密等离子体中形成通道的实验结果。结果表明，激光束在一个通道中传播超过200？m的距离在过密等离子体和沉积其能量接近原来的目标表面。为了研究快速点火，超短脉冲高能激光器由ILE的GEKKO MII和GEKKO XII建造。
The ignition condition and fusion gain for isochoric implosion with off-centre ignition are evaluated based on 2D hydrodynamic simulations. We show that the ignition energy can be reduced by increasing the compressed fuel density, although it is accompanied by a reduction in the fusion gain. Experimental results on channel formation in an overdense plasma are presented. It is shown that the laser beam propagates in a channel over a 200 ?m distance in an overdense plasma and deposits its energy close to the original target surface. For the study of fast ignition, ultrashort-pulse high-energy lasers are constructed with GEKKO MII and GEKKO XII at ILE.