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Reflecting laser-driven shocks in Diamond in the Mbar pressure range [Early Posting]

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摘要

In this work we present experimental results on the behavior of diamond at Megabar pressure. The experiment was performed using the PHELIX facility at GSI in Germany to launch a planar shock into solid multi-layered diamond samples. The target design allows to measure shock velocity in diamond and in two metal layers and to measure the free surface velocity after shock breakout. As diagnostics, we used two VISAR systems (velocity interferometry system for any reflector). Our measurements show that for the pressures obtained in diamond (between 9 and 3 Mbar), the propagation of the shock induces a reflecting state of the material. Finally experimental results were compared to hydrodynamical simulations in which we used different equations of state, showing compatibility with dedicated Sesame tables for diamond.

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作者单位:

    University of Bordeaux
    Institute of Plasma Physics and Laser Microfusion
    Donostia International Physics Center
    University of Milan–Bicocca
    Universite de Bordeaux
    Joint Institute for High Temperatures RAS
    University of Rome Tor Vergata Faculty of Engineering
    Institute for Geothermal Researches DSC of Russian Academy of Sciences
    GSI Helmholtzzentrum für Schwerionenforschung GmbH
    GSI Helmholtzzentrum für Schwerionenforschung GmbH
    GSI Helmholtzzentrum für Schwerionenforschung GmbH
    Gesellschaft für Schwerionenforschung

引用该论文

Batani Dimitri,Jakubowska Katarzyna,Mancelli Donaldi,Benocci Roberto,Trelat Jocelain,Martynenko Artem,Verona Claudio,Aliverdiev Abutrab,Borm Bjorn,Neumayer Paul,Rosmej O,Molineri Anais. Reflecting laser-driven shocks in Diamond in the Mbar pressure range[J].High Power Laser Science and Engineering,,():.