8–13 Jun 2025
America/Winnipeg timezone
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Advancing X-Ray Pair Distribution Function and Diffraction Capabilities at the Canadian Light Source

11 Jun 2025, 10:30
30m
Invited Speaker / Conférencier(ère) invité(e) Symposia Day (DCMMP - DPMCM) - Synchrotron Physics / Physique des synchotrons (DCMMP) W1-8 Frontiers of Synchrotron Based Materials Physics | Frontières de la physique des matériaux basée sur le rayonnement synchrotron (DPMCM)

Speaker

Stefan Kycia (University of Guelph)

Description

A series of significant advances in our acquisition and analysis of total scattering measurements at the Brockhouse X-Ray Diffraction and Scattering Sector (BXDS) of the Canadian Light Source has enabled atomic pair distribution functions (PDF) of unprecedented quality and sensitivity along with simultaneous high-resolution powder diffraction for Rietveld analysis. We have also managed to successfully produce excellent 3D-PDFs and conducted insitu studies. An overview of the new methods and capabilities will be presented. The PDF, Rietveld and 3D-PDF methods have been applied for the structure study of polycrystalline, nanomaterials, amorphous systems, and molecules in solution. This serves as an excellent analytical tool for structure determination and phase identification for exsitu, insitu and in-operando studies.
The performance of the current BXDS beamline will be compared with estimates based on potential CLS source upgrades as well as several fourth-generation high energy x-ray sources. Options for increasing capacity and performance will be presented. This will provide a better understanding of the comparison of 3rd generation synchrotrons and 4th generation synchrotrons as sources for PDF and high energy diffraction beamlines.

Keyword-1 Synchrotron Instrumentation
Keyword-2 Pair Distribution Function
Keyword-3 X-Ray Diffraction

Author

Stefan Kycia (University of Guelph)

Co-authors

Beatriz Moreno (Canadian Light Source) Drew Bertwistle (Advanced Light Source) Nicholas Burns (University of Guelph)

Presentation materials

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