Ultrafast two-dimensional x-ray imager with temporal fiducial pulses for laser-produced plasmas  

作　　者：刘正东 仲佳勇 远晓辉 张雅芃 姚嘉文 马作霖 徐向晏 薛彦华 张喆 袁大伟 张敏睿 李炳均 谷昊琛 戴羽 张成龙 董玉峰 周鹏 马鑫杰 马云峰 白雪洁 刘高扬 田进寿 赵刚 张杰 Zheng-Dong Liu;Jia-Yong Zhong;Xiao-Hui Yuan;Ya-Peng Zhang;Jia-Wen Yao;Zuo-Lin Ma;Xiang-Yan Xu;Yan-Hua Xue;Zhe Zhang;Da-Wei Yuan;Min-Rui Zhang;Bing-Jun Li;Hao-Chen Gu;Yu Dai;Cheng-Long Zhang;Yu-Feng Dong;Peng Zhou;Xin-Jie Ma;Yun-Feng Ma;Xue-Jie Bai;Gao-Yang Liu;Jin-Shou Tian;Gang Zhao;Jie Zhang(Department of Astronomy,Beijing Normal University,Beijing 100875,China;Institute for Frontiers in Astronomy and Astrophysics,Beijing Normal University,Beijing 102206,China;Xi’an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences,Xi’an 710119,China;Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;Key Laboratory for Laser Plasmas(MoE)and School of Physics and Astronomy,Shanghai Jiao Tong University,Shanghai 200240,China;Collaborative Innovation Center of IFSA(CICIFSA),Shanghai Jiao Tong University,Shanghai 200240,China;Key Laboratory of Optical Astronomy,National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100101,China;State Key Laboratory for Geomechanics and Deep Underground Engineering,China University of Mining and Technology,Beijing 100083,China;School of Nuclear Science and Technology,Xi’an Jiaotong University,Xi’an 710049,China;School of Sciences,Harbin Institute of Technology at Weihai,Weihai 264209,China;Songshan Lake Materials Laboratory,Guangdong 523808,China;School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]Department of Astronomy,Beijing Normal University,Beijing 100875,China [2]Institute for Frontiers in Astronomy and Astrophysics,Beijing Normal University,Beijing 102206,China [3]Xi’an Institute of Optics and Precision Mechanics,Chinese Academy of Sciences,Xi’an 710119,China [4]Beijing National Laboratory for Condensed Matter Physics,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China [5]Key Laboratory for Laser Plasmas(MoE)and School of Physics and Astronomy,Shanghai Jiao Tong University,Shanghai 200240,China [6]Collaborative Innovation Center of IFSA(CICIFSA),Shanghai Jiao Tong University,Shanghai 200240,China [7]Key Laboratory of Optical Astronomy,National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100101,China [8]State Key Laboratory for Geomechanics and Deep Underground Engineering,China University of Mining and Technology,Beijing 100083,China [9]School of Nuclear Science and Technology,Xi’an Jiaotong University,Xi’an 710049,China [10]School of Sciences,Harbin Institute of Technology at Weihai,Weihai 264209,China [11]Songshan Lake Materials Laboratory,Guangdong 523808,China [12]School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Chinese Physics B》2023年第11期214-219,共6页中国物理B(英文版)

基　　金：supported by the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant Nos. XDA25030700 and XDA25030500);the National Key R&D Program of China (Grant Nos. 2022YFA1603200 and 2022YFA1603203);the National Natural Science Foundation of China (Grant Nos. 12175018, 12135001, 12075030, and 11903006)。

摘　　要：It is challenging to make an ultrafast diagnosis of the temporal evolution of small and short-lived plasma in two dimensions. To overcome this difficulty, we have developed a well-timed diagnostic utilizing an x-ray streak camera equipped with a row of multi-pinhole arrays. By processing multiple sets of one-dimensional streaked image data acquired from various pinholes, we are capable of reconstructing high-resolution two-dimensional images with a temporal resolution of 38 ps and a spatial resolution of 18 μm. The temporal fiducial pulses accessed from external sources can advance the precise timing and accurately determine the arrival time of the laser. Moreover, it can correct the nonlinear sweeping speed of the streak camera. The effectiveness of this diagnostic has been successfully verified at the Shenguang-II laser facility,providing an indispensable tool for observing complex physical phenomena, such as the implosion process of laser-fusion experiments.

关 键 词：ultrafast diagnosis double-cone ignition x-ray streak camera pinhole array temporal fiducial pulses 

分 类 号：TN249[电子电信—物理电子学] O53[理学—等离子体物理]