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Published on: October 28, 2018
Density measurement of low- Z shocked material from monochromatic x-ray two-dimensional images
A Benuzzi-Mounaix1, B Loupias, M Koenig
1Laboratoire pour l'Utilisation des Lasers Intenses, UMR7605, CNRS-CEA, Université Paris VI, Ecole Polytechnique, 91128 Palaiseau Cedex, France.
Abstract:
An experiment on LULI 2000 laser devoted to density determination of shocked plastic from a two-dimensional monochromatic x-ray radiography is presented. A spherical quartz crystal was set to select the He-alpha line of vanadium at 2.382 A and perform the image of the main target. Rear side diagnostics were implemented to validate the new diagnostic. The density experimental results given by radiography are in good agreement with rear side diagnostics data and hydrodynamical simulations. The pressure regime into the plastic is 2-3 Mbar, corresponding to a compression between 2.7-2.9.
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