First Inertial Confinement Fusion Implosion Experiment

被引：21

作者：

Lan, Ke ^{[1
,2
,3
]}

Dong, Yunsong ^{[4
]}

Wu, Junfeng ^{[1
]}

Li, Zhichao ^{[4
]}

Chen, Yaohua ^{[1
]}

Cao, Hui ^{[1
]}

Hao, Liang ^{[1
]}

Li, Shu ^{[1
]}

Ren, Guoli ^{[1
]}

Jiang, Wei ^{[4
]}

Yin, Chuansheng ^{[4
]}

Sun, Chuankui ^{[4
]}

Chen, Zhongjing ^{[4
]}

Huang, Tianxuan ^{[4
]}

Xie, Xufei ^{[4
]}

Li, Sanwei ^{[4
]}

Miao, Wenyong ^{[4
]}

Hu, Xin ^{[4
]}

Tang, Qi ^{[4
]}

Song, Zifeng ^{[4
]}

Chen, Jiabin ^{[4
]}

Xiao, Yunqing ^{[4
]}

Che, Xingsen ^{[4
]}

Deng, Bo ^{[4
]}

Wang, Qiangqiang ^{[4
]}

Deng, Keli ^{[4
]}

Cao, Zhurong ^{[4
]}

Peng, Xiaoshi ^{[4
]}

Liu, Xiangming ^{[4
]}

He, Xiaoan ^{[4
]}

Yan, Ji ^{[4
]}

Pu, Yudong ^{[4
]}

Tu, Shaoyong ^{[4
]}

Yuan, Yongteng ^{[4
]}

Yu, Bo ^{[4
]}

Wang, Feng ^{[4
]}

Yang, Jiamin ^{[4
]}

Jiang, Shaoen ^{[4
]}

Gao, Lin ^{[4
]}

Xie, Jun ^{[4
]}

Zhang, Wei ^{[4
]}

Liu, Yiyang ^{[4
]}

Zhang, Zhanwen ^{[4
]}

Zhang, Haijun ^{[4
]}

He, Zhibing ^{[4
]}

Du, Kai ^{[4
]}

Wang, Liquan ^{[4
]}

Chen, Xu ^{[4
]}

Zhou, Wei ^{[4
]}

Huang, Xiaoxia ^{[4
]}

机构：

[1] Inst Appl Phys & Computat Math, Beijing 100094, Peoples R China

[2] Peking Univ, HEDPS, Ctr Appl Phys & Technol, Beijing 100871, Peoples R China

[3] Peking Univ, Coll Engn, Beijing 100871, Peoples R China

[4] China Acad Engn Phys, Res Ctr Laser Fus, Mianyang 621900, Sichuan, Peoples R China

[5] China Acad Engn Phys, Grad Sch, Beijing 100193, Peoples R China

[6] China Acad Engn Phys, Mianyang 621900, Sichuan, Peoples R China

来源：

PHYSICAL REVIEW LETTERS | 2021年 / 127卷 / 24期

基金：

中国国家自然科学基金;

关键词：

LASER; HOHLRAUMS; IGNITION; REGION; ENERGY; FLUX;

D O I：

10.1103/PhysRevLett.127.245001

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In inertial confinement approaches to fusion, the asymmetry of target implosion is a major obstacle to achieving high gain in the laboratory. A recently proposed octahedral spherical hohlraum makes it possible to naturally create spherical target irradiation without supplementary symmetry control. Before any decision is made to pursue an ignition-scale laser system based on the octahedral hohlraum, one needs to test the concept with the existing facilities. Here, we report a proof-of-concept experiment for the novel octahedral hohlraum geometry on the cylindrically configured SGIII laser facility without a symmetry control. All polar and equatorial self-emission images of the compressed target show a near round shape of convergence ratio 15 under both square and shaped laser pulses. The observed implosion performances agree well with the ideal spherical implosion simulation. It also shows limitations with using the existing facilities and adds further weight to the need to move to a spherical port geometry for future ignition laser facilities.

引用

页数：7

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