Multi-analyser detector (MAD) for high-resolution and high-energy powder X-ray diffraction.

Autor: Schökel A; Institute for Applied Materials, Karlsruhe Institute of Technology (KIT), PO Box 3640, 76021 Karlsruhe, Germany., Etter M; Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg, Germany., Berghäuser A; Helmholtz-Zentrum Dresden Rossendorf, FWKX@XFEL, Holzkoppel 4, 22869 Schenefeld, Germany., Horst A; Research Technology, IFW Dresden, PO Box 27 10 16, 01171 Dresden, Germany., Lindackers D; Research Technology, IFW Dresden, PO Box 27 10 16, 01171 Dresden, Germany., Whittle TA; School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia., Schmid S; School of Chemistry, The University of Sydney, Sydney, NSW 2006, Australia., Acosta M; Institute of Materials Science, Technische Universität Darmstadt, Alarich-Weiss-Straße 2, 64287 Darmstadt, Germany., Knapp M; Institute for Applied Materials, Karlsruhe Institute of Technology (KIT), PO Box 3640, 76021 Karlsruhe, Germany., Ehrenberg H; Institute for Applied Materials, Karlsruhe Institute of Technology (KIT), PO Box 3640, 76021 Karlsruhe, Germany., Hinterstein M; Institute for Applied Materials, Karlsruhe Institute of Technology (KIT), PO Box 3640, 76021 Karlsruhe, Germany.
Jazyk: angličtina
Zdroj: Journal of synchrotron radiation [J Synchrotron Radiat] 2021 Jan 01; Vol. 28 (Pt 1), pp. 146-157. Date of Electronic Publication: 2021 Jan 01.
DOI: 10.1107/S1600577520013223
Abstrakt: For high-resolution powder diffraction in material science, high photon energies are necessary, especially for in situ and in operando experiments. For this purpose, a multi-analyser detector (MAD) was developed for the high-energy beamline P02.1 at PETRA III of the Deutsches Elektronen-Synchrotron (DESY). In order to be able to adjust the detector for the high photon energies of 60 keV, an individually adjustable analyser-crystal setup was designed. The adjustment is performed via piezo stepper motors for each of the ten channels. The detector shows a low and flat background as well as a high signal-to-noise ratio. A range of standard materials were measured for characterizing the performance. Two exemplary experiments were performed to demonstrate the potential for sophisticated structural analysis with the MAD: (i) the structure of a complex material based on strontium niobate titanate and strontium niobate zirconate was determined and (ii) an in situ stroboscopy experiment with an applied electric field on a highly absorbing piezoceramic was performed. These experiments demonstrate the capabilities of the new MAD, which advances the frontiers of the structural characterization of materials.
(open access.)
Databáze: MEDLINE
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