First radiative shock experiments on the SG-Ⅱ laser

作     者：Francisco Suzuki-Vidal Thomas Clayson Chantal Stehlé Uddhab Chaulagain Jack W.D.Halliday Mingying Sun Lei Ren Ning Kang Huiya Liu Baoqiang Zhu Jianqiang Zhu Carolina De Almeida Rossi Teodora Mihailescu Pedro Velarde Manuel Cotelo John M.Foster Colin N.Danson Christopher Spindloe Jeremy P.Chittenden Carolyn Kuranz 

作者机构：Blackett Laboratory Imperial College London First Light Fusion Ltd  3. Magdrive Ltd LERMA Sorbonne-Université ELI Beamlines Center Institute of Physics Czech Academy of Sciences Shanghai Institute of Optics and Fine Mechanics Chinese Academy of Sciences Instituto de Fusión Nuclear Guillermo Velarde Universidad Politécnica de Madrid AWE plc.Aldermaston Science and Technology Facilities Council Rutherford Appleton LaboratoryHarwell Campus University of Michigan 

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：2021年第9卷第2期

页      面：198-205页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

基　　金：supported by the Royal Society (UK) through a University Research Fellowship (URF-R-180032) a Research Fellows Enhancement Award (RGF-EA-180240) an International Exchanges grant (IES-R3-170140) a Research Grant (RG2017-R2) support from the French INSU-PNPS programme support by the project Advanced Research (CZ.02.1.01/0.0/0.0/16_019/0000789) from European Regional Development Fund (ADONIS) 

摘      要：We report on the design and first results from experiments looking at the formation of radiative shocks on the Shenguang-Ⅱ(SG-Ⅱ) laser at the Shanghai Institute of Optics and Fine Mechanics in ***-heating of a two-layer CH/CH-Br foil drives a～40 km/s shock inside a gas cell filled with argon at an initial pressure of 1 *** use of gas-cell targets with large(several millimetres) lateral and axial extent allows the shock to propagate freely without any wall interactions,and permits a large field of view to image single and colliding counter-propagating shocks with time-resolved,pointprojection X-ray backlighting(～20 μm source size,4.3 keV photon energy).Single shocks were imaged up to 100 ns after the onset of the laser drive,allowing to probe the growth of spatial nonuniformities in the shock *** results are compared with experiments looking at counter-propagating shocks,showing a symmetric drive that leads to a collision and stagnation from～40 ns *** present a preliminary comparison with numerical simulations with the radiation hydrodynamics code ARWEN,which provides expected plasma parameters for the design of future experiments in this facility.