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Realization of two‐dimensional anomalous small‐angle scattering of Al alloys at the K absorption edge of Al
Author(s) -
Okuda Hiroshi,
Sakohata Rei,
Kitajima Yoshinori,
Tamenori Yusuke
Publication year - 2016
Publication title -
journal of applied crystallography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.429
H-Index - 162
ISSN - 1600-5767
DOI - 10.1107/s1600576716010669
Subject(s) - absorption edge , small angle x ray scattering , scattering , absorption (acoustics) , materials science , enhanced data rates for gsm evolution , optics , dispersion (optics) , detector , range (aeronautics) , alloy , anomalous scattering , k edge , molecular physics , physics , absorption spectroscopy , optoelectronics , telecommunications , band gap , computer science , composite material
Two‐dimensional anomalous small‐angle X‐ray scattering (ASAXS) measurements at the K absorption edge of Al have been successfully performed. Contrast change below the absorption edge was detected with the use of a CCD detector. The change of ASAXS intensities near the edge for alumina nanopowder and that for Guinier–Preston zones in an Al–Zn alloy were explained by the anomalous dispersion of Al. The present results showed that two‐dimensional SAXS measurements with a dynamic range extended to show Porod's law have been achieved for photon energies of about 1.5 keV with the use of a CCD detector optically coupled with a P43 phosphor plate.