First experimental comparisons of laser-plasma interactions between spherical and cylindrical hohlraums at SGIII laser facility

Chen Yaohua; Li Zhichao; Xie Xufei; Zheng Chunyang; Zhai Chuanlei; Hao Liang; Yang Dong; Huo Wenyi; Ren Guoli; Liu Jie; Peng Xiaoshi; Xu Tao; Li Yulong; Li Sanwei; Yang Zhiwen; Guo Liang; Hou Lifei; Liu Yonggang; Wei Huiyue; Liu Xiangming; Cha Weiyi; Li Yukun; Deng Keli; Yuan Zheng; Zhan Xiayu; Zhang Haijun; Jiang Baibin; Zhang Wei; Du Kai; Deng Xuewei; Ding Yongkun; Wei Xiaofeng; Zheng Wanguo; Chen Xiaodong; He Xiantu; Lan Ke

doi:10.1016/j.mre.2017.01.001

Volume 2 Issue 2

Mar. 2017

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Article Navigation > Matter and Radiation at Extremes > 2017 > 2(2):

Chen Yaohua, Li Zhichao, Xie Xufei, Zheng Chunyang, Zhai Chuanlei, Hao Liang, Yang Dong, Huo Wenyi, Ren Guoli, Liu Jie, Peng Xiaoshi, Xu Tao, Li Yulong, Li Sanwei, Yang Zhiwen, Guo Liang, Hou Lifei, Liu Yonggang, Wei Huiyue, Liu Xiangming, Cha Weiyi, Li Yukun, Deng Keli, Yuan Zheng, Zhan Xiayu, Zhang Haijun, Jiang Baibin, Zhang Wei, Du Kai, Deng Xuewei, Ding Yongkun, Wei Xiaofeng, Zheng Wanguo, Chen Xiaodong, He Xiantu, Lan Ke. First experimental comparisons of laser-plasma interactions between spherical and cylindrical hohlraums at SGIII laser facility[J]. Matter and Radiation at Extremes, 2017, 2(2). doi: 10.1016/j.mre.2017.01.001

Citation:

Chen Yaohua, Li Zhichao, Xie Xufei, Zheng Chunyang, Zhai Chuanlei, Hao Liang, Yang Dong, Huo Wenyi, Ren Guoli, Liu Jie, Peng Xiaoshi, Xu Tao, Li Yulong, Li Sanwei, Yang Zhiwen, Guo Liang, Hou Lifei, Liu Yonggang, Wei Huiyue, Liu Xiangming, Cha Weiyi, Li Yukun, Deng Keli, Yuan Zheng, Zhan Xiayu, Zhang Haijun, Jiang Baibin, Zhang Wei, Du Kai, Deng Xuewei, Ding Yongkun, Wei Xiaofeng, Zheng Wanguo, Chen Xiaodong, He Xiantu, Lan Ke. First experimental comparisons of laser-plasma interactions between spherical and cylindrical hohlraums at SGIII laser facility[J]. Matter and Radiation at Extremes, 2017, 2(2). doi: 10.1016/j.mre.2017.01.001

Citation:

Chen Yaohua, Li Zhichao, Xie Xufei, Zheng Chunyang, Zhai Chuanlei, Hao Liang, Yang Dong, Huo Wenyi, Ren Guoli, Liu Jie, Peng Xiaoshi, Xu Tao, Li Yulong, Li Sanwei, Yang Zhiwen, Guo Liang, Hou Lifei, Liu Yonggang, Wei Huiyue, Liu Xiangming, Cha Weiyi, Li Yukun, Deng Keli, Yuan Zheng, Zhan Xiayu, Zhang Haijun, Jiang Baibin, Zhang Wei, Du Kai, Deng Xuewei, Ding Yongkun, Wei Xiaofeng, Zheng Wanguo, Chen Xiaodong, He Xiantu, Lan Ke. First experimental comparisons of laser-plasma interactions between spherical and cylindrical hohlraums at SGIII laser facility[J]. Matter and Radiation at Extremes, 2017, 2(2). doi: 10.1016/j.mre.2017.01.001

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First experimental comparisons of laser-plasma interactions between spherical and cylindrical hohlraums at SGIII laser facility

doi: 10.1016/j.mre.2017.01.001

1.
aInstitute of Applied Physics and Computational Mathematics, Beijing, 100088, China
2.
bResearch Center of Laser Fusion, China Academy of Engineering Physics, Mianyang, 621900, China
3.
cCenter for Applied Physics and Technology, Peking University, Beijing, 100871, China
4.
dCollaborative Innovation Center of IFSA, Shanghai Jiao Tong University, Shanghai, 200240, China

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Corresponding author: *Corresponding author. E-mail address: chen_yaohua@iapcm.ac.cn
Received Date: 2016-12-02
Accepted Date: 2017-01-10

Available Online: 2021-12-07

Publish Date: 2017-03-15

Abstract

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 n_c to 0.1 n_c 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.
- Laser-plasmas interactions,
- Spherical hohlraum,
- Stimulated Raman scattering,
- Stimulated Brillouin scattering

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References(34)

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