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Proceedings Paper

Proposed System For High Speed Materials Testing Of Microtargets Under Dynamic Load Using Flash X-Ray Diffraction (FXD) Analysis
Author(s): Peter Krehl
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Paper Abstract

Flash X-Ray Diffraction (FXD) is a method of high potential to study lattice compression and phase transformations in shock-compressed matter. The technique commonly applied records a back reflection diffraction pattern at the back side of the target, while its front side is struck by a projectile. However, since the experimental time window for recording is very narrow, only low-atomic number materials could be investigated successfully. The extension to materials of higher density would be of substantial practical interest, as well as a simulation of longer lasting loading histories in the microsecond regime. Furthermore, since only a small target volume is necessary for FXD diagnostics, a miniature compression method rather than conventional impact methods would be more adequate, in regard both to tube and film protection, and usable x-ray energy. The present paper discusses a pulsed, linear magnetic pinch technique for micro-target compression and possible applications in a Debye-Scherrer FXD setup.

Paper Details

Date Published: 1 March 1983
PDF: 8 pages
Proc. SPIE 0348, 15th Intl Congress on High Speed Photography and Photonics, (1 March 1983); doi: 10.1117/12.967823
Show Author Affiliations
Peter Krehl, Fraunhofer-Institut fur Kurzzeitdynamik and Ernst-Mach-Institut (Germany)

Published in SPIE Proceedings Vol. 0348:
15th Intl Congress on High Speed Photography and Photonics
Lincoln L. Endelman, Editor(s)

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