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New probing techniques of radiative shocks |
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| Authors: | Chantal Stehlé Michaela Kozlová Jean Larour Jaroslav Nejdl Norbert Champion Patrice Barroso Francisco Suzuki-Vidal Ouali Acef Pierre-Alexandre Delattre Jan Dostál Miroslav Krus Jean-Pierre Chièze |
| Institution: | 1. Department of Chemistry, Ferdowsi University of Mashhad, International Campus, Mashhad 91775-1436, Iran;2. Department of Chemistry, Ferdowsi University of Mashhad, Mashhad 91775-1436, Iran;3. Department of Chemistry, Shiraz University of Technology, Shiraz 71555-313, Iran;1. State Key Laboratory of Multiphase Flow in Power Engineering, Xi''an Jiaotong University, Xi''an 710049, China;2. Graduate School of Advanced Technology and Science, The University of Tokushima, Tokushima 770-8501, Japan;3. Moe Key Laboratory of Thermo-Fluid Science and Engineering, Xi''an Jiaotong University, Xi''an 710049, China |
| Abstract: | Radiative shock waves propagating in xenon at a low pressure have been produced using 60 joules of iodine laser (λ = 1.315 μm) at PALS center. The shocks have been probed by XUV imaging using a Zn X-raylaser (λ = 21 nm) generated with a 20-ns delay after the shock creating pulse. Auxiliary high-speed silicon diodes allowed performing space- and time-resolved measurement of plasma self-emission in the visible and XUV. The results show the generation of a shock wave propagating at 60 km/s preceded by a radiative precursor. This demonstrates the feasibility of radiative shock generation using high power infrared lasers and the use of XRL backlighting as a suitable diagnostic for shock imaging. |
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