Density measurement of shock compressed foam using two-dimensional x-ray radiography - PubMed (original) (raw)

. 2008 Oct;79(10):106104.

doi: 10.1063/1.2982237.

Andrew Macphee, Daniel Hey, Pravesh Patel, Andrew Mackinnon, Mike Key, John Pasley, Mingsheng Wei, Sophia Chen, Tammy Ma, Farhat Beg, N Alexander, Rich Stephens, Dustin Offerman, A Link, Lynn Van-Woerkom, R Freeman

Affiliations

Density measurement of shock compressed foam using two-dimensional x-ray radiography

Sebastien Le Pape et al. Rev Sci Instrum. 2008 Oct.

Abstract

We have used spherically bent quartz crystal to image a laser-generated shock in a foam medium. The foam targets had a density of 0.16 g/cm(3) and thickness of 150 microm, an aluminum/copper pusher drove the shock. The experiment was performed at the Titan facility at Lawrence Livermore National Laboratory using a 2 ns, 250 J laser pulse to compress the foam target, and a short pulse (10 ps, 350 J) to generate a bright Ti K alpha x-ray source at 4.5 keV to radiograph the shocked target. The crystal used gives a high resolution (approximately 20 microm) monochromatic image of the shock compressed foam.

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