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SUePDF: a program to obtain quantitative pair distribution functions from electron diffraction data
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
Stockholm University, Faculty of Science, Department of Materials and Environmental Chemistry (MMK).
Number of Authors: 3
2017 (English)In: Journal of applied crystallography, ISSN 0021-8898, E-ISSN 1600-5767, Vol. 50, 304-312 p.Article in journal (Refereed) Published
Abstract [en]

SUePDF is a graphical user interface program written in MATLAB to achieve quantitative pair distribution functions (PDFs) from electron diffraction data. The program facilitates structural studies of amorphous materials and small nanoparticles using electron diffraction data from transmission electron microscopes. It is based on the physics of electron scattering as well as the total scattering methodology. A method of background modeling is introduced to treat the intensity tail of the direct beam, inelastic scattering and incoherent multiple scattering. Kinematical electron scattering intensity is scaled using the electron scattering factors. The PDFs obtained after Fourier transforms are normalized with respect to number density, nanoparticle form factor and the non-negativity of probability density. SUePDF is distributed as free software for academic users.

Place, publisher, year, edition, pages
2017. Vol. 50, 304-312 p.
Keyword [en]
pair distribution functions, electron diffraction, transmission electron microscopy, disorder
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:su:diva-141373DOI: 10.1107/S160057671601863XISI: 000394289400030PubMedID: 28190994OAI: oai:DiVA.org:su-141373DiVA: diva2:1091987
Available from: 2017-04-28 Created: 2017-04-28 Last updated: 2017-04-28Bibliographically approved

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Svensson, GunnarTai, Cheuk-Wai
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