Published June 2008 | Version v1
Journal article Metadata-only

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

Creators

  • 1. Laboratoire pour l'Utilisation de Lasers Intenses, UMR7605, CNRS-CEA-Universite Paris VI -Ecole Polytechnique, 91128 Palaiseau Cedex (France)
  • 2. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
  • 3. School of Mathematics and Physics, Queens University of Belfast, Belfast BT7 INN (United Kingdom)
  • 4. Department of Energetics, University of Rome 'La Sapienza', Via A Scarpa 14-16, I-00161 Rome (Italy)
  • 5. Dipartimento di Fisica G. Occhialini, Universita di Milano-Bicocca, Piazza Della Scienze 3, 20126 Milano (Italy)
  • 6. Laboratory for Laser Energetics, University of Rochester, Rochester, New York 14627 (United States)
  • 7. Departement de conception et realisation des experiences (DECRE), CEA-DIF, BP 12, 91680 Bruyeres-le-Chatel (France)
  • 8. CCLRC, Rutherford Appleton Laboratory, Chilton, Didcot OX11 0QX (United Kingdom)

Description

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

Additional details

Identifiers

DOI
10.1063/1.2928156;

Publishing Information

Journal Title
Physics of Plasmas
Journal Volume
15
Journal Issue
6
Journal Page Range
p. 060701-060701.4
ISSN
1070-664X
CODEN
PHPAEN

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40002934
Subject category
S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
Descriptors DEI
ALUMINIUM; DESIGN; EMISSION; FORECASTING; GEOMETRY; HARD X RADIATION; LASERS; MOLYBDENUM; PULSES; SHOCK WAVES; SIMULATION; SPATIAL RESOLUTION; VELOCITY
Descriptors DEC
ELECTROMAGNETIC RADIATION; ELEMENTS; IONIZING RADIATIONS; MATHEMATICS; METALS; RADIATIONS; REFRACTORY METALS; RESOLUTION; TRANSITION ELEMENTS; X RADIATION

Optional Information

Notes
(c) 2008 American Institute of Physics