Nanosecond x-ray diffraction from polycrystalline and amorphous materials in a pinhole camera geometry suitable for laser shock compression experiments.

Journal article

Nanosecond pulses of quasimonochromatic x-rays emitted from the K shell of ions within a laser-produced plasma are of sufficient spectral brightness to allow single-shot recording of powder diffraction patterns from thin foils of order millimeter diameter. Strong diffraction signals have been observed in a cylindrical pinhole camera arrangement from both polycrystalline and amorphous foils, and the experimental arrangement and foil dimensions are such that they allow for laser shocking or quasi-isentropic loading of the foil during the diffraction process.

Authors: Hawreliak, J; Lorenzana, H; Remington, B; Lukezic, S; Wark, J

• Publication status: Published
• Journal: Review of scientific instruments
• Volume: 78
• Issue: 8
• Pages: 083908
• Publication date: 2007-08-01
• DOI: 10.1063/1.2772210
• EISSN: 1089-7623
• ISSN: 0034-6748
• Language: English
• Keywords: Refractometry; Lasers; Equipment Failure Analysis; Reproducibility of Results; Computer-Aided Design; Materials Testing; Molecular Conformation; Equipment Design; Metals; Sensitivity and Specificity; Time Factors; X-Ray Diffraction; Membranes, Artificial