Published: June 01, 2018
Jan Ilavsky, Fan Zhang, Ross N. Andrews, Ivan Kuzmenko, Pete R. Jemian, Lyle E. Levine, Andrew J. Allen
Following many years of evolutionary development, first at the National Synchrotron Light Source, Brookhaven National Laboratory, and then at the Advanced Photon Source (APS), Argonne National Laboratory, the APS ultra-small-angle X-ray scattering (USAXS) facility has been transformed by several new developments. These comprise a conversion to higher-order crystal optics and higher X-ray energies as the standard operating mode, rapid fly-scan measurements also as a standard operational mode, automated, contiguous pinhole small-angle X-ray scattering (SAXS) measurements at intermediate scattering vectors, and associated rapid wide-angle X-ray scattering (WAXS) measurements for X-ray diffraction without disturbing the sample geometry. With each mode using the USAXS incident beam optics upstream of the sample, USAXS/SAXS/WAXS measurements can now be made within five minutes, allowing in situ and operando measurement capabilities with great flexibility under a wide range of sample conditions. These developments are described, together with examples of their application to investigate materials phenomena of technological importance. Developments of the novel USAXS applications: USAXS-based X-ray Photon Correlation Spectroscopy (USAXS-XPCS) and USAXS imaging, are also briefly reviewed.
Citation: Journal of Applied Crystallography
Pub Type: Journals
small-angle X-ray scattering, microstructure characterization, in situ structure characterization, advanced materials, synchrotron radiation
Created June 01, 2018, Updated November 10, 2018