First Indirect Drive Experiment Using a Six-Cylinder-Port Hohlraum

作者：Xin Li, Dong Yunsong, Dongguo Kang, Wei Jiang, Hao Shen, Longyu Kuang, Huasen Zhang, Jiamin Yang, Qiang Wang, Chuansheng Yin, Tianxuan Huang, Wenyong Miao, Zhongjing Chen, Qi Tang, Xiaoshi Peng, Zifeng Song, Xing Zhang, Jianjun Dong, Bo Deng, Keli Deng, Qiangqiang Wang, Yimeng Yang, Xiangming Liu, Longfei Jing, Hang Li, Zhongjie Liu, Bo Yu, Jiwang Yan, Yudong Pu, Shaoyong Tu, Yongteng Yuan, Dong Yang, Feng Wang, Wei Zhou, Xiaoxia Huang, Zhibing He, Haijun Zhang, Yiyang Liu, Shiyang Zou, Baohan Zhang, Yongkun Ding, Shaoping Zhu, Weiyan Zhang · 发表于：Physical Review Letters · 年份：2022 · DOI：10.1103/physrevlett.128.195001 · 被引用次数：8 · 研究领域：Laser-Plasma Interactions and Diagnostics、Laser-Matter Interactions and Applications、High-pressure geophysics and materials

The new hohlraum experimental platform and the quasi-3D simulation model are developed to enable the study of the indirect drive experiment using the six-cylinder-port hohlraum for the first time. It is also the first implosion experiment for the six laser-entrance-hole hohlraum to effectively use all the laser beams of the laser facility that is primarily designed for the cylindrical hohlraum. The experiments performed at the 100 kJ Laser Facility produce a peak hohlraum radiation temperature of ∼222 eV for ∼80 kJ and 2 ns square laser pulse. The inferred x-ray conversion efficiency η∼87% is similar to the cylindrical hohlraum and higher than the octahedral spherical hohlraum at the same laser facility, while the low laser backscatter is similar to the outer cone of the cylindrical hohlraum. The hohlraum radiation temperature and M-band (>1.6 keV) flux can be well reproduced by the quasi-3D simulation. The variations of the yield-over-clean and the hot spot shape can also be semiquantitatively explained by the calculated major radiation asymmetry of the quasi-3D simulation. Our work demonstrates the capability for the study of the indirect drive with the six-cylinder-port hohlraum at the cylindrically configured laser facility, which is essential for numerically assessing the laser energy required by the ignition-scale six-cylinder-port hohlraum.