Compression and acceleration processes of spherical shells in gold cones  

作　　者：Huigang Wei Dawei Yuan Shaojun Wang Ye Cui Xiaohu Yang Yanyun Ma Zhe Zhang Xiaohui Yuan Jiayong Zhong Neng Hua Yutong Li Jianqiang Zhu Gang Zhao Jie Zhang 

机构地区：[1]Key Laboratory of Optical Astronomy,National Astronomical Observatories,Chinese Academy of Sciences,Beijing,China [2]Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing,China [3]Department of Nuclear Science and Technology,National University of Defense Technology,Changsha,China [4]Key Laboratory for Laser Plasmas(MOE)and School of Physics and Astronomy,Shanghai Jiao Tong University,Shanghai,China [5]Collaborative Innovation Center of IFSA(CICIFSA),Shanghai Jiao Tong University,Shanghai,China [6]Department of Astronomy,Beijing Normal University,Beijing,China [7]National Laboratory on High Power Laser and Physics,Chinese Academy of Sciences,Shanghai,China [8]School of Physical Sciences,University of Chinese Academy of Sciences,Beijing,China [9]School of Astronomy and Space Science,University of Chinese Academy of Sciences,Beijing,China [10]Institute of Frontiers in Astronomy and Astrophysics of Beijing Normal University,Beijing,China

出　　处：《High Power Laser Science and Engineering》2024年第4期48-55,共8页高功率激光科学与工程（英文版）

基　　金：supported by the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant Nos.XDA25030500 and XDA25050200);the National Natural Science Foundation of China(Grant Nos.11988101,11890694,12173058,and 12175309);the National Key R&D Program of China(Grant Nos.2019YFA0405502 and 2022YFA1603204);the CAS Youth Interdisciplinary Team(Grant No.JCTD2022-05)。

摘　　要：Double-cone ignition[Zhang et al.,Phil.Trans.R.Soc.A 378,20200015(2020)]was proposed recently as a novel path for direct-drive inertial confinement fusion using high-power lasers.In this scheme,plasma jets with both high density and high velocity are required for collisions.Here we report preliminary experimental results obtained at the Shenguang-II upgrade laser facility,employing a CHCl shell in a gold cone irradiated with a two-ramp laser pulse.The CHCl shell was pre-compressed by the first laser ramp to a density of 3.75 g/cm^(3)along the isentropic path.Subsequently,the target was further compressed and accelerated by the second laser ramp in the cone.According to the simulations,the plasma jet reached a density of up to 15 g/cm^(3),while measurements indicated a velocity of 126.8±17.1 km/s.The good agreements between experimental data and simulations are documented.

关 键 词：compression and burn double-cone ignition laser-plasma interaction 

分 类 号：TL632[核科学技术—核技术及应用] TN248[电子电信—物理电子学]