Results 61 to 70 of about 11,275,154 (385)

X-ray beam diagnostics at the MID instrument of the European X-ray Free-Electron Laser Facility

Journal of Synchrotron Radiation
The Materials Imaging and Dynamics (MID) instrument at the European X-ray Free-Electron Laser Facility (EuXFEL) is equipped with a multipurpose diagnostic end-station (DES) at the end of the instrument.
Ulrike Boesenberg, Gabriele Ansaldi, Alexander Bartmann, Lewis Batchelor, Felix Brausse, Jörg Hallmann, Wonhyuk Jo, Chan Kim, Birthe Klein, Iker Lobato, Wei Lu, Johannes Möller, Ilia Petrov, Angel Rodriguez-Fernandez, Andreas Schmidt, Markus Scholz, Roman Shayduk, Konstantin Sukharnikov, Alexey Zozulya, Anders Madsen   +19 more
doaj   +1 more source

Crystallization behavior of ion beam sputtered HfO2 thin films and its effect on the laser-induced damage threshold

Journal of the European Optical Society-Rapid Publications, 2021
In this work, we present our results about the thermal crystallization of ion beam sputtered hafnia on 0001 SiO2 substrates and its effect on the laser-induced damage threshold (LIDT).
Zoltán Balogh-Michels, Igor Stevanovic, Aurelio Borzi, Andreas Bächli, Daniel Schachtler, Thomas Gischkat, Antonia Neels, Alexander Stuck, Roelene Botha   +8 more
doaj   +1 more source

X-ray luminescence computed tomography using a focused X-ray beam

, 2017
Due to the low X-ray photon utilization efficiency and low measurement sensitivity of the electron multiplying charge coupled device (EMCCD) camera setup, the collimator based narrow beam X-ray luminescence computed tomography (XLCT) usually requires a ...
Li, Changqing, Lun, Michael C, Nguyen, Alex Anh-Tu, Zhang, Wei   +3 more
core   +2 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Adversarial robustness improvement for X-ray bone segmentation using synthetic data created from computed tomography scans

Scientific Reports
Deep learning-based image analysis offers great potential in clinical practice. However, it faces mainly two challenges: scarcity of large-scale annotated clinical data for training and susceptibility to adversarial data in inference.
Wai Yan Ryana Fok, Andreas Fieselmann, Christian Huemmer, Ramyar Biniazan, Marcel Beister, Bernhard Geiger, Steffen Kappler, Sylvia Saalfeld   +7 more
doaj   +1 more source

In Situ/Operando Electrocatalyst Characterization by X-ray Absorption Spectroscopy

Chemical Reviews, 2020
During the last decades, X-ray absorption spectroscopy (XAS) has become an indispensable method for probing the structure and composition of heterogeneous catalysts, revealing the nature of the active sites and establishing links between structural ...
J. Timoshenko, B. Roldán Cuenya
semanticscholar   +1 more source

Coronae in the Coronet: A very deep X-ray look into a stellar nursery [PDF]

, 2007
In order to study the X-ray properties of young stellar objects (YSOs), we analyze an exceptionally sensitive Chandra dataset of the Coronet cluster in the CrA star-forming region, achieving a limiting luminosity of LXmin=5E26 erg/sec for lightly ...
Acke, Anderson, André, Bibo, Brandt, Calvet, Casey, Casey, Chauvin, Chen, Choi, Corporon, Damiani, Doppmann, Eisner, Favata, Favata, Feigelson, Feigelson, Fernández, Flaccomio, Forbrich, Forbrich, Freeman, Garmire, Garmire, Gehrels, Getman, Glassgold, Grady, Groppi, Grosso, Grosso, Güdel, Güdel, Günther, Hamaguchi, Hamaguchi, Harju, Imanishi, Imanishi, J. Forbrich, Jardine, Kastner, Kastner, Koyama, Kraft, López Martí, McCabe, Megeath, Montmerle, Neuhäuser, Neuhäuser, Neuhäuser, Neuhäuser, Nisini, Nutter, Olofsson, Palla, Prato, Pravdo, Pravdo, Preibisch, Preibisch, Preibisch, Preibisch, Preibisch, Preibisch, Schmitt, Schmitt, Schmitt, Siess, Skinner, Skinner, Stassun, Stassun, Stelzer, Stelzer, Swartz, T. Preibisch, Teixeira, Telleschi, Telleschi, Tsuboi, Tsujimoto, Turon, Walter, Wang, Weisskopf, White, Wilking, Wilking, Wolk, Zinnecker   +93 more
core   +1 more source

The anti‐CRISPR protein AcrIE8.1 inhibits the type I‐E CRISPR‐Cas system by directly binding to the Cascade subunit Cas11

FEBS Letters, EarlyView.
In this study, we present the structure of AcrIE8.1, a previously uncharacterized anti‐CRISPR protein that inhibits the type I‐E CRISPR‐Cas system. Through a combination of structural and biochemical analyses, we demonstrate that AcrIE8.1 directly binds to the Cas11 subunit of the Cascade complex to inhibit the CRISPR‐Cas system.
Young Woo Kang, Hyun Ho Park
wiley   +1 more source

MHz X-ray photon correlation spectroscopy using an acoustic levitator at the European XFEL

Journal of Synchrotron Radiation
The structural and dynamical properties of soft-matter systems play an important role in crystallization and nucleation theory. Despite their significance, the dynamical properties are still poorly understood because of experimental constraints and the ...
Wonhyuk Jo, Johannes Möller, Jörg Hallmann, James Wrigley, Jan-Etienne Pudell, Ulrike Boesenberg, Felix Brausse, Angel Rodriguez-Fernandez, Alexey Zozulya, Roman Shayduk, Anders Madsen   +10 more
doaj   +1 more source

Adsorption of oleic acid on magnetite facets

Communications Chemistry, 2022
Metal oxide nanoparticles functionalized by organic molecules are important building blocks for nanocomposites. Here, the authors study the adsorption of oleic acid on magnetite (001) and (111) surfaces experimentally by SXRD, LEED, FT-IRRAS and XRR, and
Marcus Creutzburg, Mine Konuk, Steffen Tober, Simon Chung, Björn Arndt, Heshmat Noei, Robert H. Meißner, Andreas Stierle   +7 more
doaj   +1 more source