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

IF 4.8 1区物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY

Matter and Radiation at Extremes Pub Date : 2024-06-20 DOI:10.1063/5.0200440

Leonard Wegert, Stephan Schreiner, Constantin Rauch, Bruno Albertazzi, Paulina Bleuel, Eric Fröjdh, Michel Koenig, Veronika Ludwig, Artem S. Martynenko, Pascal Meyer, Aldo Mozzanica, Michael Müller, Paul Neumayer, Markus Schneider, Angelos Triantafyllidis, Bernhard Zielbauer, Gisela Anton, Thilo Michel, Stefan Funk

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引用次数: 0

Abstract

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.

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基于光栅的激光驱动冲击波相位对比成像演示

单次 X 射线相位对比成像用于拍摄激光驱动的强冲击波的高分辨率图像。利用双光栅塔尔博特干涉仪，我们成功地获取了冲击目标的标准吸收、差分相位对比和暗场图像。实验数据与激光-等离子体相互作用的二维辐射流体力学模拟结果之间呈现出良好的一致性。通过对干涉仪性能的全面评估，确定了图像噪声的主要来源。获得的图像表明，基于光栅的相位对比成像是高能量密度科学的强大诊断工具。此外，我们还进行了一次新的尝试，利用暗场图像作为塔尔博特干涉仪的信号模式来识别泡沫目标的微观结构。

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来源期刊

Matter and Radiation at Extremes Physics and Astronomy-Atomic and Molecular Physics, and Optics

CiteScore

8.60

自引率

9.80%

发文量

160

审稿时长

15 weeks

期刊介绍： Matter and Radiation at Extremes (MRE), is committed to the publication of original and impactful research and review papers that address extreme states of matter and radiation, and the associated science and technology that are employed to produce and diagnose these conditions in the laboratory. Drivers, targets and diagnostics are included along with related numerical simulation and computational methods. It aims to provide a peer-reviewed platform for the international physics community and promote worldwide dissemination of the latest and impactful research in related fields.