학술논문
Continuous scanning for Bragg coherent X-ray imaging.
Document Type
Article
Author
Li, Ni; Dupraz, Maxime; Wu, Longfei; Leake, Steven J.; Resta, Andrea; Carnis, Jérôme; Labat, Stéphane; Almog, Ehud; Rabkin, Eugen; Favre-Nicolin, Vincent; Picca, Frédéric-Emmanuel; Berenguer, Felisa; van de Poll, Rim; Hofmann, Jan P.; Vlad, Alina; Thomas, Olivier; Garreau, Yves; Coati, Alessandro; Richard, Marie-Ingrid
Source
Subject
*X-ray imaging
*DATA acquisition systems
*ELECTRON density
*LIGHT sources
*DIFFRACTION patterns
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Language
ISSN
2045-2322
Abstract
We explore the use of continuous scanning during data acquisition for Bragg coherent diffraction imaging, i.e., where the sample is in continuous motion. The fidelity of continuous scanning Bragg coherent diffraction imaging is demonstrated on a single Pt nanoparticle in a flow reactor at 400 ∘ C in an Ar-based gas flowed at 50 ml/min. We show a reduction of 30% in total scan time compared to conventional step-by-step scanning. The reconstructed Bragg electron density, phase, displacement and strain fields are in excellent agreement with the results obtained from conventional step-by-step scanning. Continuous scanning will allow to minimise sample instability under the beam and will become increasingly important at diffraction-limited storage ring light sources. [ABSTRACT FROM AUTHOR]