Design, performance and application of a line-imaging velocity interferometer system for any reflector coupled with a streaked optical pyrometer system at the Shenguang-Ⅱ upgrade laser facility

作     者：Dawei Yuan Shaojun Wang Huigang Wei Haochen Gu Yu Dai Jiayong Zhong Yutong Li Gang Zhao Jie Zhang Dawei Yuan;Shaojun Wang;Huigang Wei;Haochen Gu;Yu Dai;Jiayong Zhong;Yutong Li;Gang Zhao;Jie Zhang

作者机构：Key Laboratory of Optical AstronomyNational Astronomical ObservatoriesChinese Academy of SciencesBeijingChina Institute of Frontiers in Astronomy and Astrophysics of Beijing Normal UniversityBeijingChina Beijing National Laboratory for Condensed Matter PhysicsInstitute of PhysicsChinese Academy of SciencesBeijingChina Key Laboratory for Laser Plasmas(MOE)and School of Physics and AstronomyShanghai Jiao Tong UniversityShanghaiChina Department of AstronomyBeijing Normal UniversityBeijingChina Collaborative Innovation Center of IFSAShanghai Jiao Tong UniversityShanghaiChina School of Physical SciencesUniversity of Chinese Academy of SciencesBeijingChina Songshan Lake Materials LaboratoryDongguanChina 

出 版 物：《High Power Laser Science and Engineering》 (高功率激光科学与工程（英文版）)

年 卷 期：2024年第12卷第1期

页      面：52-59页

核心收录：

学科分类：08[工学] 082701[工学-核能科学与工程] 0827[工学-核科学与技术] 

基　　金：supported by the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant Nos.XDA25030500 and XDA25010300) the CAS Youth Interdisciplinary Team(Grant No.JCTD-2022-05) the Youth Innovation Promotion Association of the Chinese Academy of Sciences the National Natural Science Foundation of China(Grant Nos.11873061 and 12073043) the National Key R&D Program of China(Grant Nos.2022YFA1603200 and 2022YFA1603204) 

主　　题：double-cone ignition streaked optical pyrometer velocity interferometer system for any reflector 

摘      要：The velocity interferometer system for any reflector(VISAR) coupled with a streaked optical pyrometer(SOP) system is used as a diagnostic tool in inertial confinement fusion(ICF) experiments involving equations of state and shock *** validate the process of adiabatically compressing the fuel shell through precise tuning of shocks in experimental campaigns for the double-cone ignition(DCI) scheme of ICF, a compact line-imaging VISAR with an SOP system is designed and implemented at the Shenguang-II upgrade laser facility. The temporal and spatial resolutions of the system are better than 30 ps and 7 μm, respectively. An illumination lens is used to adjust the lighting spot size matching with the target size. A polarization beam splitter and λ/4 waveplate are used to increase the transmission efficiency of our system. The VISAR and SOP work at 660 and 450 nm, respectively, to differentiate the signals from the scattered lights of the drive lasers. The VISAR can measure the shock velocity. At the same time, the SOP system can give the shock timing and relative strength. This system has been used in different DCI campaigns, where the generation and propagation processes of multi-shock are carefully diagnosed.