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Proceedings Paper

Ultrafast high strain rate acoustic wave measurements at high static pressure in a diamond anvil cell
Author(s): Michael R. Armstrong; Jonathan C. Crowhurst; Evan J. Reed; Joseph M. Zaug
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Paper Abstract

We describe experiments demonstrating the generation of ultrafast, high strain rate acoustic waves in a precompressed transparent medium at static pressure up to 24 GPa. We also observe shock waves in precompressed aluminum with transient pressures above 40 GPa under precompression. Using ultrafast interferometry, we determine parameters such as the shock pressure and acoustic wave velocity using multiple and single shot methods. These methods form the basis for material experiments under extreme conditions which are challenging to access using other techniques.

Paper Details

Date Published: 6 February 2009
PDF: 8 pages
Proc. SPIE 7214, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII, 721407 (6 February 2009); doi: 10.1117/12.809363
Show Author Affiliations
Michael R. Armstrong, Lawrence Livermore National Lab. (United States)
Jonathan C. Crowhurst, Lawrence Livermore National Lab. (United States)
Evan J. Reed, Lawrence Livermore National Lab. (United States)
Joseph M. Zaug, Lawrence Livermore National Lab. (United States)


Published in SPIE Proceedings Vol. 7214:
Ultrafast Phenomena in Semiconductors and Nanostructure Materials XIII
Kong-Thon Tsen; Jin-Joo Song; Markus Betz; Abdulhakem Y. Elezzabi, Editor(s)

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