Matter and Radiation at Extremes (Jan 2016)
First demonstration of improving laser propagation inside the spherical hohlraums by using the cylindrical laser entrance hole
- Wenyi Huo,
- Zhichao Li,
- Dong Yang,
- Ke Lan,
- Jie Liu,
- Guoli Ren,
- Sanwei Li,
- Zhiwen Yang,
- Liang Guo,
- Lifei Hou,
- Xuefei Xie,
- Yukun Li,
- Keli Deng,
- Zheng Yuan,
- Xiayu Zhan,
- Guanghui Yuan,
- Haijun Zhang,
- Baibin Jiang,
- Lizhen Huang,
- Kai Du,
- Runchang Zhao,
- Ping Li,
- Wei Wang,
- Jingqin Su,
- Yongkun Ding,
- Xiantu He,
- Weiyan Zhang
Affiliations
- Wenyi Huo
- Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
- Zhichao Li
- Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Mianyang 621900, China
- Dong Yang
- Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Mianyang 621900, China
- Ke Lan
- Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
- Jie Liu
- Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
- Guoli Ren
- Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
- Sanwei Li
- Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Mianyang 621900, China
- Zhiwen Yang
- Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Mianyang 621900, China
- Liang Guo
- Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Mianyang 621900, China
- Lifei Hou
- Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Mianyang 621900, China
- Xuefei Xie
- Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Mianyang 621900, China
- Yukun Li
- Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Mianyang 621900, China
- Keli Deng
- Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Mianyang 621900, China
- Zheng Yuan
- Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Mianyang 621900, China
- Xiayu Zhan
- Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Mianyang 621900, China
- Guanghui Yuan
- Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Mianyang 621900, China
- Haijun Zhang
- Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Mianyang 621900, China
- Baibin Jiang
- Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Mianyang 621900, China
- Lizhen Huang
- Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Mianyang 621900, China
- Kai Du
- Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Mianyang 621900, China
- Runchang Zhao
- Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Mianyang 621900, China
- Ping Li
- Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Mianyang 621900, China
- Wei Wang
- Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Mianyang 621900, China
- Jingqin Su
- Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Mianyang 621900, China
- Yongkun Ding
- Research Center of Laser Fusion, Chinese Academy of Engineering Physics, Mianyang 621900, China
- Xiantu He
- Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
- Weiyan Zhang
- China Academy of Engineering Physics, Mianyang 621900, China
- DOI
- https://doi.org/10.1016/j.mre.2016.02.001
- Journal volume & issue
-
Vol. 1,
no. 1
pp. 2 – 7
Abstract
The octahedral spherical hohlraums have natural superiority in maintaining high radiation symmetry during the entire capsule implosion process in indirect drive inertial confinement fusion. While, in contrast to the cylindrical hohlraums, the narrow space between the laser beams and the spherical hohlraum wall is usually commented. In this Letter, we address this crucial issue and report our experimental work conducted on the SGIII-prototype laser facility which unambiguously demonstrates that a simple design of cylindrical laser entrance hole (LEH) can dramatically improve the laser propagation inside the spherical hohlraums. In addition, the laser beam deflection in the hohlraum is observed for the first time in the experiments. Our 2-dimensional simulation results also verify qualitatively the advantages of the spherical hohlraums with cylindrical LEHs. Our results imply the prospect of adopting the cylindrical LEHs in future spherical ignition hohlraum design.
