Versatile USAXS (Bonse-Hart) Facility for Advanced Materials Research

Published

February 19, 2017

Author(s)

J Ilavsky, P Jemain, Andrew J. Allen, Gabrielle G. Long

Abstract

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 charactrization of nanometer-scale to micrometer-scale microstructures. Receiving photons from an APS Undulator A X-ray source, the instrument delivers approximately equal to} 10¹³ ph s^-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 = 4π/λ sin [theta}, λ is the photon wavelength, and 2 θ is the angle of scatter) from 0.0001 Angstrom}^-1 to 1 Angstrom}^-1, 9 decades of detector intensity range, absolute intensity calibration by primary methods, fluorescence rejection in the scattered beam, excellent energy resolution (Δ}λ / λ) for anomalous USAXS, and a miximum unfocused beam size of 0.4 mm x 2.5 mm, with spatial resolution down to 20 υm. 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.

Proceedings Title

Proceedings of the SRI 2003 Conference

Conference Dates

August 24-29, 2003

Conference Location

Undefined

Conference Title

SRI Conference

Pub Type

Conferences

Keywords

collimator, reflections, SAXS, small-angle x-ray scattering, ultra-small-angle x-ray scattering, USAXS

Citation

Ilavsky, J. , Jemain, P. , Allen, A. and Long, G. (2017), Versatile USAXS (Bonse-Hart) Facility for Advanced Materials Research, Proceedings of the SRI 2003 Conference, Undefined (Accessed December 12, 2024)