Matter and Radiation at Extremes (Mar 2017)
First experimental comparisons of laser-plasma interactions between spherical and cylindrical hohlraums at SGIII laser facility
- Yaohua Chen,
- Zhichao Li,
- Xufei Xie,
- Chunyang Zheng,
- Chuanlei Zhai,
- Liang Hao,
- Dong Yang,
- Wenyi Huo,
- Guoli Ren,
- Jie Liu,
- Xiaoshi Peng,
- Tao Xu,
- Yulong Li,
- Sanwei Li,
- Zhiwen Yang,
- Liang Guo,
- Lifei Hou,
- Yonggang Liu,
- Huiyue Wei,
- Xiangming Liu,
- Weiyi Cha,
- Yukun Li,
- Keli Deng,
- Zheng Yuan,
- Xiayu Zhan,
- Haijun Zhang,
- Baibin Jiang,
- Wei Zhang,
- Kai Du,
- Xuewei Deng,
- Yongkun Ding,
- Xiaofeng Wei,
- Wanguo Zheng,
- Xiaodong Chen,
- Xiantu He,
- Ke Lan
Affiliations
- Yaohua Chen
- Institute of Applied Physics and Computational Mathematics, Beijing, 100088, China
- Zhichao Li
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, China
- Xufei Xie
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, China
- Chunyang Zheng
- Institute of Applied Physics and Computational Mathematics, Beijing, 100088, China
- Chuanlei Zhai
- Institute of Applied Physics and Computational Mathematics, Beijing, 100088, China
- Liang Hao
- Institute of Applied Physics and Computational Mathematics, Beijing, 100088, China
- Dong Yang
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, China
- Wenyi Huo
- Institute of Applied Physics and Computational Mathematics, Beijing, 100088, China
- Guoli Ren
- Institute of Applied Physics and Computational Mathematics, Beijing, 100088, China
- Jie Liu
- Institute of Applied Physics and Computational Mathematics, Beijing, 100088, China
- Xiaoshi Peng
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, China
- Tao Xu
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, China
- Yulong Li
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, China
- Sanwei Li
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, China
- Zhiwen Yang
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, China
- Liang Guo
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, China
- Lifei Hou
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, China
- Yonggang Liu
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, China
- Huiyue Wei
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, China
- Xiangming Liu
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, China
- Weiyi Cha
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, China
- Yukun Li
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, China
- Keli Deng
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, China
- Zheng Yuan
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, China
- Xiayu Zhan
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, China
- Haijun Zhang
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, China
- Baibin Jiang
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, China
- Wei Zhang
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, China
- Kai Du
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, China
- Xuewei Deng
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, China
- Yongkun Ding
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, China
- Xiaofeng Wei
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, China
- Wanguo Zheng
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, China
- Xiaodong Chen
- Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, China
- Xiantu He
- Institute of Applied Physics and Computational Mathematics, Beijing, 100088, China
- Ke Lan
- Institute of Applied Physics and Computational Mathematics, Beijing, 100088, China
- DOI
- https://doi.org/10.1016/j.mre.2017.01.001
- Journal volume & issue
-
Vol. 2,
no. 2
pp. 77 – 86
Abstract
We present our recent laser-plasmas instability (LPI) comparison experiment at the SGIII laser facility between the spherical and cylindrical hohlraums. Three kinds of filling are considered: vacuum, gas-filling with or without a capsule inside. A spherical hohlraum of 3.6 mm in diameter, and a cylindrical hohlraum of 2.4 mm × 4.3 mm are used. The capsule diameter is 0.96 mm. A flat-top laser pulse with 3 ns duration and up to 92.73 kJ energy is used. The experiment has shown that the LPI level in the spherical hohlraum is close to that of the outer beam in the cylindrical hohlraum, while much lower than that of the inner beam. The experiment is further simulated by using our 2-dimensional radiation hydrodynamic code LARED-Integration, and the laser back-scattering fraction and the stimulated Raman scatter (SRS) spectrum are post-processed by the high efficiency code of laser interaction with plasmas HLIP. According to the simulation, the plasma waves are strongly damped and the SRS is mainly developed at the plasma conditions of electron density from 0.08 nc to 0.1 nc and electron temperature from 1.5 keV to 2.0 keV inside the hohlraums. However, obvious differences between the simulation and experiment are found, such as that the SRS back-scattering is underestimated, and the numerical SRS spectrum peaks at a larger wavelength and at a later time than the data. These differences indicate that the development of a 3D radiation hydrodynamic code, with more accurate physics models, is mandatory for spherical hohlraum study.
