1. Hard x-ray radiography for density measurement in shock compressed matter
- Author
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Alessandra Ravasio, Angelo Schiavi, R. J. Clarke, Berenice Loupias, S. Le Pape, A. J. Mackinnon, C. A. Cecchetti, Alessandra Benuzzi-Mounaix, E. A. Henry, M. Koenig, S. Bandyopadhyay, Marco Borghesi, M. M. Notley, Tommaso Vinci, H. S. Park, T. R. Boehly, R. Dezulian, Dimitri Batani, P. K. Patel, and Norimasa Ozaki
- Subjects
Physics ,X ray radiography ,Opacity ,business.industry ,Radiography ,Short pulse laser ,chemistry.chemical_element ,Condensed Matter Physics ,Shock (mechanics) ,Optics ,chemistry ,Aluminium ,High spatial resolution ,business - Abstract
In this letter we report on the direct density measurement in a shock compressed aluminum target using hard x-ray radiography. Experimental data employing a molybdenum Kα source at 17.5keV, generated with a short pulse laser are presented. High spatial resolution was obtained thanks to a new design for the backlighter geometry. Density values deduced from radiography are compared to predictions from hydrodynamic simulations, which have been calibrated in order to reproduce shock velocities measured from a rear-side self-emission diagnostic. Our results reveal the great potential of this technique as a diagnostic tool for direct density measurements in dense high-Z opaque materials.
- Published
- 2008