Demonstrating grating-based phase-contrast imaging of laser-driven shock waves  

作　　者：Leonard Wegert Stephan Schreiner Constantin Rauch Bruno Albertazzi Paulina Bleuel Eric Frojdh Michel Koenig Veronika Ludwig Artem SMartynenko Pascal Meyer Aldo Mozzanica Michael Müller Paul Neumayer Markus Schneider Angelos Triantafyllidis Bernhard Zielbauer Gisela Anton Thilo Michel Stefan Funk 

机构地区：[1]Plasma Physics Department,GSI Helmholtzzentrum fur Schwerionenforschung,PlanckstraBe 1,64291 Darmstadt,Germany [2]Erlangen Centre for Astroparticle Physics(ECAP),Friedrich-Alexander-Universität Erlangen-Nurnberg,Nikolaus-Fiebiger-StraBe 2,91058 Erlangen,Germany [3]LULI-CNRS,CEA,Sorbonne Universités,Ecole Polytechnique,Institut Polytechnique de Paris,F-91120 Palaiseau Cedex,France [4]Paul Scherrer Institut(Psi),Forschungsstrasse 111,5232Villigen,Switzerland [5]Karlsruhe Institute of Technology,Institute of Microstructure Technology,Hermann-von-Helmholtz-Platz 1,76344 Eggenstein-Leopoldshafen,Germany

出　　处：《Matter and Radiation at Extremes》2024年第4期90-97,共8页极端条件下的物质与辐射（英文）

基　　金：funded by the Deutsche Forschungsgemeinschaft(DFG)under Grant No.452935060(“Einzelschuss Rontgen-Phasenkonstrast Abbildung von dichten Plasmen,”https://gepris.dfg.de/gepris/projekt/452935060);supported by Laserlab-Europe with GrantNo.PID20536;supported by the Alexander von Humboldt Foundation.

摘　　要：Single-shot X-ray phase-contrast imaging is used to take high-resolution images of laser-driven strong shock waves.Employing a two-grating Talbot interferometer,we successfully acquire standard absorption,differential phase-contrast,and dark-field images of the shocked target.Good agreement is demonstrated between experimental data and the results of two-dimensional radiation hydrodynamics simulations of the laser-plasma interaction.The main sources of image noise are identified through a thorough assessment of the interferometer’s performance.The acquired images demonstrate that grating-based phase-contrast imaging is a powerful diagnostic tool for high-energy-density science.In addition,we make a novel attempt at using the dark-field image as a signal modality of Talbot interferometry to identify the microstructure of a foam target.

关 键 词：INTERACTION shock PHASE 

分 类 号：O53[理学—等离子体物理]