Dokument-ID Dokumenttyp Autoren/innen Persönliche Herausgeber/innen Haupttitel Abstract Auflage Verlagsort Verlag Herausgeber (Institution) Erscheinungsjahr Titel des übergeordneten Werkes Jahrgang/Band ISBN Veranstaltung Veranstaltungsort Beginndatum der Veranstaltung Enddatum der Veranstaltung Ausgabe/Heft Erste Seite Letzte Seite URN DOI Lizenz Datum der Freischaltung OPUS4-54983 Zeitschriftenartikel Tengattini, A; Kardjilov, N; Helfen, L; Douissard, P A; Lenoir, N; Markötter, Henning; Hilger, A; Arlt, T; Paulisch, M; Turek, T; Manke, Ingo Compact and versatile neutron imaging detector with sub-4μm spatial resolution based on a single-crystal thin-film scintillator A large and increasing number of scientific domains pushes for high neutron imaging resolution achieved in reasonable times. Here we present the principle, design and performance of a detector based on infinity corrected optics combined with a crystalline Gd3Ga5O12 : Eu scintillator, which provides an isotropic sub-4 μm true resolution. The exposure times are only of a few minutes per image. This is made possible also by the uniquely intense cold neutron flux available at the imaging beamline NeXT-Grenoble. These comparatively rapid acquisitions are compatible with multiple high quality tomographic acquisitions, opening new venues for in-operando testing, as briefly exemplified here. Washington, DC Optica 2022 Optics Express 30 9 14461 14477 urn:nbn:de:kobv:b43-549836 10.1364/oe.448932 https://creativecommons.org/licenses/by/4.0/deed.de 2022-06-09 OPUS4-42955 Zeitschriftenartikel Shashev, Yury; Kupsch, Andreas; Lange, Axel; Evsevleev, Sergei; Müller, Bernd R.; Osenberg, Markus; Manke, Ingo; Hentschel, Manfred P.; Bruno, Giovanni Optimizing the visibility of X-ray phase grating interferometry The performance of grating interferometers coming up now for Imaging interfaces within materials depends on the efficiency (visibility) of their main component, namely the phase grating. Therefore, experiments with monochromatic synchrotron radiation and corresponding simulations are carried out. The visibility of a Phase grating is optimized by different photon energies, varying detector to grating distances and continuous rotation of the phase grating about the grid lines. Such kind of rotation changes the projected grating shapes, and thereby the distribution profiles of phase shifts. This yields higher visibilities than derived from ideal rectangular shapes. By continuous grating rotation and variation of the propagation distance, we achieve 2D visibility maps. Such maps provide the visibility for a certain combination of grating orientation and detector position. Optimum visibilities occur at considerably smaller distances than in the standard setup. Hanser Verlag 2017 Materials Testing 59 11-12 974 980 10.3139/120.111097 2017-11-17