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Interface-sensitive imaging by an image reconstruction aided X-ray reflectivity technique

Jiang, J; Hirano, K; Sakurai, K; (2017) Interface-sensitive imaging by an image reconstruction aided X-ray reflectivity technique. Journal of Applied Crystallography , 50 (3) pp. 712-721. 10.1107/S160057671700509X. Green open access

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Abstract

Recently, the authors have succeeded in realizing X-ray reflectivity imaging of heterogeneous ultrathin films at specific wavevector transfers by applying a wide parallel beam and an area detector. By combining in-plane angle and grazing-incidence angle scans, it is possible to reconstruct a series of interface-sensitive X-ray reflectivity images at different grazing-incidence angles (proportional to wavevector transfers). The physical meaning of a reconstructed X-ray reflectivity image at a specific wavevector transfer is the two-dimensional reflectivity distribution of the sample. In this manner, it is possible to retrieve the micro-X-ray reflectivity (where the pixel size is on the microscale) profiles at different local positions on the sample.

Type: Article
Title: Interface-sensitive imaging by an image reconstruction aided X-ray reflectivity technique
Open access status: An open access version is available from UCL Discovery
DOI: 10.1107/S160057671700509X
Publisher version: https://doi.org/10.1107/S160057671700509X
Language: English
Additional information: © 2017 International Union of Crystallography. This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence (https://creativecommons.org/licenses/by/2.0/uk/legalcode).
Keywords: surfaces and interfaces, micro-imaging, X-ray reflectivity, image reconstruction, visualization
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Med Phys and Biomedical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/10051448
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