title: Nanosecond x-ray diffraction from polycrystalline and amorphous materials in a pinhole camera geometry suitable for laser shock compression experiments.
abstract: 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.affiliation: Lawrence Livermore National Laboratory, Livermore, CA 94550, USA. hawreliak1@llnl.gov
authors.forename: J
authors.initials: J
authors.lastname: Hawreliak
authors.forename: H E
authors.initials: HE
authors.lastname: Lorenzana
authors.forename: B A
authors.initials: BA
authors.lastname: Remington
authors.forename: S
authors.initials: S
authors.lastname: Lukezic
authors.forename: J S
authors.initials: JS
authors.lastname: Wark
mesh_terms: D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D008422:Materials Testing / Q000295:instrumentation* / Q000379:methods; D008567:Membranes, Artificial; D008670:Metals / Q000737:chemistry*; D008968:Molecular Conformation; D012031:Refractometry / Q000295:instrumentation* / Q000379:methods; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013997:Time Factors; D014961:X-Ray Diffraction / Q000295:instrumentation*
chemical_list: D008567:Membranes, Artificial; D008670:Metals