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

Schökel, Alexander; Etter, M.; Berghäuser, A.; Horst, A.; Lindackers, D.; Whittle, T. A.; Schmid, S.; Acosta, M.; Knapp, Michael; Ehrenberg, Helmut; Hinterstein, Manuel

Abstract:
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.

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Verlagsausgabe §
DOI: 10.5445/IR/1000129555
Veröffentlicht am 12.02.2021
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Materialien - Energiespeichersysteme (IAM-ESS)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 0909-0495, 1600-5775
KITopen-ID: 1000129555
Erschienen in Journal of synchrotron radiation
Verlag International Union of Crystallography
Band 28
Seiten 146-157
Schlagwörter powder X-ray diffraction; high-resolution detectors; multi-analyser detectors; high-energy diffraction; strontium niobate titanate; strontium niobate zirconate; BZT–xBCT
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