In this work, we present results from experiments capable of producing and measuring the propagation of multiple successive, copropagating shocks across an unstable planar interface, where the shocks are independently driven and separately controllable, enabling the study of this important phenomenon. Copropagating shocks play a significant role in a wide range of systems involving stratified media subject to a shock, and exhibit different physical characteristics compared to counterpropagating shocks. Existing techniques, however, preclude copropagating shocks, so experiments to date have been limited to the study of counterpropagating shocks. We address this previous limitation and open a physical parameter space for study using a new hohlraum platform on the National Ignition Facility. Initial experimental results are presented together with comparisons from numerical simulations.

中文翻译：

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与不稳定界面相互作用的两种共传播冲击的实验测量

在这项工作中，我们提供了能够产生和测量多次连续，共同传播的冲击在不稳定平面界面上传播的实验结果，这些冲击是独立驱动和分别控制的，从而可以研究这一重要现象。共传播冲击在涉及层状介质的多种系统中都起着重要作用，与分层传播的冲击相比，它们表现出不同的物理特性。但是，现有的技术无法阻止共向冲击，因此迄今为止的实验仅限于对向冲击的研究。我们解决了以前的局限性，并使用国家点火设施上的新型hohlraum平台打开了一个物理参数空间供研究。