Results 41 to 50 of about 498 (139)

Retrieval of 3D information in X-ray dark-field imaging with a large field of view

Scientific Reports, 2021
X-ray dark-field imaging is a widely researched imaging technique, with many studies on samples of very different dimensions and at very different resolutions.
Jana Andrejewski, Fabio De Marco, Konstantin Willer, Wolfgang Noichl, Theresa Urban, Manuela Frank, Alex Gustschin, Pascal Meyer, Thomas Koehler, Franz Pfeiffer, Julia Herzen   +10 more
doaj   +1 more source

Tunable X-ray dark-field imaging for sub-resolution feature size quantification in porous media

Scientific Reports, 2021
X-ray computed micro-tomography typically involves a trade-off between sample size and resolution, complicating the study at a micrometer scale of representative volumes of materials with broad feature size distributions (e.g. natural stones). X-ray dark-
Benjamin K. Blykers, Caori Organista, Matthieu N. Boone, Matias Kagias, Federica Marone, Marco Stampanoni, Tom Bultreys, Veerle Cnudde, Jan Aelterman   +8 more
doaj   +1 more source

Fabrication and Characterization of a Plasmonic Ellipsoidal Nanohole Array With Chiral Response

Advanced Photonics Research, Volume 7, Issue 2, February 2026.
An intrinsically chiral plasmonic platform is realized using ellipsoidal nanohole arrays where mirror symmetry is broken by a precise 18° structural rotation through a scalable displacement Talbot lithography approach. This architecture yields a significant circular dichroism signal of 20%–30% at normal incidence, offering a robust and high‐performance
Franco Marabelli, Margherita Angelini, Luca Zagaglia, Paola Pellacani, Konstantins Jefimovs, Dimitrios Kazazis, Francesco Floris   +6 more
wiley   +1 more source

X-ray phase-contrast tomography of renal ischemia-reperfusion damage. [PDF]

PLoS ONE, 2014
The aim of the study was to investigate microstructural changes occurring in unilateral renal ischemia-reperfusion injury in a murine animal model using synchrotron radiation.The effects of renal ischemia-reperfusion were investigated in a murine animal ...
Astrid Velroyen, Martin Bech, Irene Zanette, Jolanda Schwarz, Alexander Rack, Christiane Tympner, Tanja Herrler, Claudia Staab-Weijnitz, Margarita Braunagel, Maximilian Reiser, Fabian Bamberg, Franz Pfeiffer, Mike Notohamiprodjo   +12 more
doaj   +1 more source

Modeling Vibrations of a Tiled Talbot-Lau Interferometer on a Clinical CT

IEEE Transactions on Medical Imaging, 2023
X-ray computed tomography (CT) is an invaluable imaging technique for non-invasive medical diagnosis. However, for soft tissue in the human body the difference in attenuation is inherently small. Grating-based X-ray phase-contrast is a relatively novel imaging method which detects additional interaction mechanisms between photons and matter, namely ...
Clemens Schmid, Manuel Viermetz, Nikolai Gustschin, Wolfgang Noichl, Jakob Haeusele, Tobias Lasser, Thomas Koehler, Franz Pfeiffer   +7 more
openaire   +2 more sources

Outdoor Stability of 518 cm2 Active Area Screen‐Printed Mesoscopic Carbon‐Based Perovskite Solar Modules Over 12 Months

Advanced Materials Technologies, Volume 11, Issue 2, 22 January 2026.
Mesoscopic carbon‐based perovskite solar cells (C‐PSCs) offer a pathway to stable, scalable, low‐cost photovoltaics via commercially mature fabrication methods. While their potential lifespan has been demonstrated under standardized conditions, few studies examine the behavior of large‐area modules exposed to real‐world environments. Here, 12 months of
Sarah‐Jane Potts, Rebecca Bolton, Carys Worsley, Tom Griffiths, Luke Ardolino, Kathryn Lacey, Ershad Parvazian, Eifion Jewell, Trystan Watson   +8 more
wiley   +1 more source

Deformable image registration of dark‐field chest radiographs for functional lung assessment

Medical Physics, Volume 52, Issue 8, August 2025.
Abstract Background Dark‐field radiography of the human chest has been demonstrated to have promising potential for the analysis of the lung microstructure and the diagnosis of respiratory diseases. However, most previous studies of dark‐field chest radiographs evaluated the lung signal only in the inspiratory breathing state.
Fabian Drexel, Vasiliki Sideri‐Lampretsa, Henriette Bast, Alexander W. Marka, Thomas Koehler, Florian T. Gassert, Daniela Pfeiffer, Daniel Rueckert, Franz Pfeiffer   +8 more
wiley   +1 more source

Optimization Based Evaluation of Grating Interferometric Phase Stepping Series and Analysis of Mechanical Setup Instabilities

Journal of Imaging, 2018
The diffraction contrast modalities accessible by X-ray grating interferometers are not imaged directly but have to be inferred from sine-like signal variations occurring in a series of images acquired at varying relative positions of the interferometer ...
Jonas Dittmann, Andreas Balles, Simon Zabler   +2 more
doaj   +1 more source

Temporal and spatiotemporal soliton molecules in ultrafast fibre lasers

Nanophotonics, Volume 14, Issue 6, Page 677-706, April 2025.
Abstract Ultrafast fibre lasers, characterized by ultrashort pulse duration and broad spectral bandwidth, have drawn significant attention due to their vast potential across a wide range of applications, from fundamental scientific to industrial processing and beyond.
Ding Mao, Zichuan Yuan, Ke Dai, Yue Chen, Huihui Ma, Qiang Ling, Jiancheng Zheng, Yusheng Zhang, Daru Chen, Yudong Cui, Zhipei Sun, Boris A. Malomed   +11 more
wiley   +1 more source

Demonstrating grating-based phase-contrast imaging of laser-driven shock waves

Matter and Radiation at Extremes
Single-shot X-ray phase-contrast imaging is used to take high-resolution images of laser-driven strong shock waves. Employing a two-grating Talbot interferometer, we successfully acquire standard absorption, differential phase-contrast, and dark-field ...
Leonard Wegert, Stephan Schreiner, Constantin Rauch, Bruno Albertazzi, Paulina Bleuel, Eric Fröjdh, Michel Koenig, Veronika Ludwig, Artem S. Martynenko, Pascal Meyer, Aldo Mozzanica, Michael Müller, Paul Neumayer, Markus Schneider, Angelos Triantafyllidis, Bernhard Zielbauer, Gisela Anton, Thilo Michel, Stefan Funk   +18 more
doaj   +1 more source