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Extending synchrotron SAXS instrument ranges through addition of a portable, inexpensive USAXS module with vertical rotation axes

DOI: 10.1107/S1600577521003313 DOI Help

Authors: Brian R. Pauw (Bundesanstalt für Materialforschung und -prüfung (BAM)) , Andrew Smith (Diamond Light Source) , Tim Snow (Diamond Light Source) , Olga Shebanova (Diamond Light Source) , John P. Sutter (Diamond Light Source) , Jan Ilavsky (Advanced Photon Source (APS)) , Daniel Hermida-Merino (Netherlands Organization for Scientific Research (NWO)) , Glen J. Smales (Bundesanstalt für Materialforschung und -prüfung (BAM)) , Nicholas J. Terrill (Diamond Light Source) , Andreas F. Thünemann (Bundesanstalt für Materialforschung und -prüfung (BAM)) , Wim Bras (Oak Ridge National Laboratory)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Journal Of Synchrotron Radiation , VOL 28

State: Published (Approved)
Published: May 2021

Open Access Open Access

Abstract: Ultra-SAXS can enhance the capabilities of existing synchrotron SAXS/WAXS beamlines. A compact ultra-SAXS module has been developed, which extends the measurable q-range with 0.0015 ≤ q (nm−1) ≤ 0.2, allowing structural dimensions in the range 30 ≤ D (nm) ≤ 4000 to be probed in addition to the range covered by a high-end SAXS/WAXS instrument. By shifting the module components in and out on their respective motor stages, SAXS/WAXS measurements can be easily and rapidly interleaved with USAXS measurements. The use of vertical crystal rotation axes (horizontal diffraction) greatly simplifies the construction, at minimal cost to efficiency. In this paper, the design considerations, realization and synchrotron findings are presented. Measurements of silica spheres, an alumina membrane, and a porous carbon catalyst are provided as application examples.

Journal Keywords: ultra-SAXS; USAXS; X-ray scattering; instrumentation; module

Subject Areas: Technique Development

Instruments: I22-Small angle scattering & Diffraction

Added On: 26/04/2021 09:50


Discipline Tags:

Physics Technique Development - Physics

Technical Tags:

Scattering Small Angle X-ray Scattering (SAXS)