Versatile USAXS (Bonse-Hart) facility for advanced materials research
The USAXS facility at UNICAT Sector 33 at the Advanced Photon Source (APS) is a world-class resource for advanced materials research emphasizing full-range characterization of nanometer-scale to micrometer-scale microstructures. Receiving photons from an APS Undulator A X-ray source, the instrument delivers {approx} 10{sup 13} ph s{sup -1} incident in a 0.4 mm x 2.5 mm area at the sample position for 10 keV photons, has an incident photon energy range from 7 keV to 19 keV, a single-scan Q range (where Q = 4{pi}/{lambda} sin {theta}, {lambda} is the photon wavelength, and 2{theta} is the angle of scatter) from 0.00012 {angstrom}{sup -1} to 1 {angstrom}{sup -1}, over 10 decades of detector intensity range, absolute intensity calibration by primary methods, fluorescence rejection in the scattered beam, excellent energy resolution ({Delta}{lambda}/{lambda}) for anomalous USAXS, and a maximum unfocused beam size of 0.4 mm x 2.5 mm, with useful beams as small as 20 {micro}m x 20 {micro}m. The facility offers semi-automated data reduction, rapid and rigorous data analysis using state-of-the-art structure factors and models, and radiographic and USAXS-imaging. Both 1-D collimated (slit-smeared configuration) and 2-D collimated configurations are routinely available. Ongoing development of this facility continues in an active partnership between the instrument scientists and the user community.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 1008943
- Resource Relation:
- Conference: Synchrotron Radiation Instrumentation: Eighth International Conference;;
- Country of Publication:
- United States
- Language:
- ENGLISH
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