Density measurement of shock compressed foam using two-dimensional x-ray radiography
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/cm3 and thickness of 150 μm, 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 Kα x-ray source at 4.5 keV to radiograph the shocked target. The crystal used gives a high resolution (∼20 μm) monochromatic image of the shock compressed foam.
- Publication:
-
Review of Scientific Instruments
- Pub Date:
- October 2008
- DOI:
- 10.1063/1.2982237
- Bibcode:
- 2008RScI...79j6104L
- Keywords:
-
- 07.85.Fv;
- 62.50.Ef;
- 42.65.Re;
- 61.80.Ba;
- 06.30.Dr;
- X- and gamma-ray sources mirrors gratings and detectors;
- Shock wave effects in solids and liquids;
- Ultrafast processes;
- optical pulse generation and pulse compression;
- Ultraviolet visible and infrared radiation effects;
- Mass and density