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Hard x-ray radiography for density measurement in shock compressed matter

  • A. Ravasio
  • , M. Koenig
  • , S. Le Pape
  • , A. Benuzzi-Mounaix
  • , H. S. Park
  • , C. Cecchetti
  • , P. Patel
  • , A. Schiavi
  • , N. Ozaki
  • , A. MacKinnon
  • , B. Loupias
  • , D. Batani
  • , T. Boehly
  • , M. Borghesi
  • , R. Dezulian
  • , E. Henry
  • , M. Notley
  • , S. Bandyopadhyay
  • , R. Clarke
  • , T. Vinci
  • Lawrence Livermore National Laboratory
  • School of Mathematics and Physics
  • Queen's University of Belfast
  • Dipartimento di Energetica
  • University of Rome
  • University of Milano-Bicocca
  • Laboratory for Laser Energetics
  • University of Rochester Laboratory for Laser Energetics
  • CEA-DIF
  • CCLRC Rutherford Appleton Laboratory

Résultats de recherche: Contribution à un journalArticleRevue par des pairs

47 Citations (Scopus)

Résumé

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 17.5 keV, 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.

langue originaleAnglais
Numéro d'article060701
journalPhysics of Plasmas
Volume15
Numéro de publication6
Les DOIs
étatPublié - 9 juil. 2008

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