Open AccessMulti‐analyser detector (MAD) for high‐resolution and high‐energy powder X‐ray diffraction
Author(s) -
Schökel Alexander,
Etter Martin,
Berghäuser Andreas,
Horst Alexander,
Lindackers Dirk,
Whittle Thomas A.,
Schmid Siegbert,
Acosta Matias,
Knapp Michael,
Ehrenberg Helmut,
Hinterstein Manuel
Publication year - 2021
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s1600577520013223
Subject(s) - analyser , detector , beamline , materials science , synchrotron , optics , diffraction , desy , advanced photon source , lead zirconate titanate , optoelectronics , physics , beam (structure) , dielectric , ferroelectricity
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.