Influence analysis of symmetry on capsule in six-cylinder-port hohlraum
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  • 英文篇名:Influence analysis of symmetry on capsule in six-cylinder-port hohlraum
  • 作者:邹游 ; 郑无敌 ; 李欣
  • 英文作者:You Zou;Wudi Zheng;Xin Li;School of Science,Chongqing University of Technology;Institute of Applied Physics and Computational Mathematics;
  • 英文关键词:inertial confinement fusion(ICF);;six-cylinder-port hohlraum;;flux symmetry;;three-dimensional view factor model
  • 中文刊名:ZGWL
  • 英文刊名:中国物理B
  • 机构:School of Science,Chongqing University of Technology;Institute of Applied Physics and Computational Mathematics;
  • 出版日期:2019-03-15
  • 出版单位:Chinese Physics B
  • 年:2019
  • 期:v.28
  • 基金:supported by the National Natural Science Foundation of China(Grant No.11705010);; China Postdoctoral Science Foundation(Grant No.2017M610821)
  • 语种:英文;
  • 页:ZGWL201903036
  • 页数:6
  • CN:03
  • ISSN:11-5639/O4
  • 分类号:270-275
摘要
We have investigated the flux symmetry on the capsule in a six-cylinder-port hohlraum for improving the design of the hohlraum. The influence factors of drive symmetry on the capsule in the hohlraum are studied, including laser power,laser beams arrangement, hohlraum geometric parameters, plasma condition, capsule convergence, etc. The x-ray radiation flux distribution on the capsule is obtained based on the three-dimensional view factor model. In the six-cylinder-port hohlraum, the main drive asymmetry is the C40 mode asymmetry. When the C40 mode asymmetry approaches zero, the drive symmetry on the capsule is optimal. Our results demonstrate that in order to have a high flux symmetry on the capsule in the laser main-pulse stage, more negative initial C40 modes are needed, which can be realized by adjusting the hohlraum geometry parameters. The hohlraum with column length L_H = 4.81 mm has an optimal symmetry in the laser main-pulse stage.
        We have investigated the flux symmetry on the capsule in a six-cylinder-port hohlraum for improving the design of the hohlraum. The influence factors of drive symmetry on the capsule in the hohlraum are studied, including laser power,laser beams arrangement, hohlraum geometric parameters, plasma condition, capsule convergence, etc. The x-ray radiation flux distribution on the capsule is obtained based on the three-dimensional view factor model. In the six-cylinder-port hohlraum, the main drive asymmetry is the C40 mode asymmetry. When the C40 mode asymmetry approaches zero, the drive symmetry on the capsule is optimal. Our results demonstrate that in order to have a high flux symmetry on the capsule in the laser main-pulse stage, more negative initial C40 modes are needed, which can be realized by adjusting the hohlraum geometry parameters. The hohlraum with column length L_H = 4.81 mm has an optimal symmetry in the laser main-pulse stage.
引文
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