Direct imaging of shock wave splitting in diamond at Mbar pressure
作者机构：Joint Institute for High Temperatures of Russian Academy of Sciences13/2 Izhorskaya St.125412 MoscowRussia Institute for Open and Transdisciplinary Research InitiativeOsaka UniversitySuitaOsaka 565-0871Japan Graduate School of EngineeringOsaka UniversitySuitaOsaka 565-0817Japan Institute of Laser EngineeringOsaka UniversitySuitaOsaka 565-0871Japan Landau Institute for Theoretical Physics of Russian Academy of Sciences1-A Akademika Semenova Ave.ChernogolovkaMoscow Region 142432Russia LULICNRSCEAEcole PolytechniqueUPMCUniversite Paris 06:Sorbonne UniversitesInstitut Polytechnique de ParisF-91128 Palaiseau CedexFrance Graduate School of ScienceNagoya UniversityChikusa KuNagoyaAichi 4648602Japan Department of PhysicsExperimental Biophysics and Space SciencesFreie Universitat BerlinArnimallee 1414195 BerlinGermany SLAC National Accelerator Laboratory2575 Sand Hill RoadMenlo ParkCalifornia 94025USA Japan Synchrotron Radiation Research InstituteSayoHyogo 679-5198Japan RIKEN SPring-8 CenterSayoHyogo 679-5148Japan Institute for Integrated Radiation and Nuclear ScienceKyoto UniversityYoshida-honmachiSakyo-kuKyoto 606-8501Japan
出 版 物：《Matter and Radiation at Extremes》 (极端条件下的物质与辐射（英文）)
年 卷 期：2023年第8卷第6期
页 面：90-100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：We thank the technical staff of SACLA for their support during the experiment.The experiment was performed at BL3 of SACLA with the approval of the Japan Synchrotron Radiation Research Institute(Proposal Nos.2021A8004 and 2021B8002).The high-power drive laser installed in SACLA EH5 was developed with the cooperation of Hamamatsu Photonics.The installation of diffractive optical elements to improve the smoothness of the drive laser-pattern was supported by the SACLA Basic Development Program The work was carried out with the financial support of the Russian Federation represented by the Ministry of Science and Higher Education of the Russian Federation(Grant No.075-15-2021-1352) This work was supported by KAKENHI(Grant Nos.17K05729 and 21K03499)from the Japan Society for the Promotion of Science(JSPS)
摘 要：Understanding the behavior of matter at extreme pressures of the order of a megabar(Mbar)is essential to gain insight into various physical phenomena at macroscales—the formation of planets,young stars,and the cores of super-Earths,and at microscales—damage to ceramic materials and high-pressure plastic transformation and phase transitions in *** dynamic compression of solids up to Mbar pressures,even a solid with high strength exhibits plastic properties,causing the induced shock wave to split in two:an elastic precursor and a plastic shock *** phenomenon is described by theoretical models based on indirect measurements of material *** advent of x-ray free-electron lasers(XFELs)has made it possible to use their ultrashort pulses for direct observations of the propagation of shock waves in solid materials by the method of phase-contrast ***,there is still a lack of comprehensive data for verification of theoretical models of different ***,we present the results of an experiment in which the evolution of the coupled elastic-plastic wave structure in diamond was directly observed and studied with submicrometer spatial resolution,using the unique capabilities of the x-ray free-electron laser(XFEL).The direct measurements allowed,for the first time,the fitting and validation of the 2D failure model for diamond in the range of several *** experimental approach opens new possibilities for the direct verification and construction of equations of state of matter in the ultra-high-stress range,which are relevant to solving a variety of problems in high-energy-density physics.
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