Results 71 to 80 of about 1,646,093 (289)

Photon-counting CT: image quality evaluation in patients with tibial plateau fracture treated with metallic osteosynthesis material

European Radiology Experimental
Objective The aim was to compare the image quality of photon-counting detector CT (PCD-CT) and energy-integrating detector CT (EID-CT) in patients with tibial plateau fractures treated with metallic osteosynthesis material, and to identify optimal ...
Ann-Sofi Björkman, Alexandr Malusek, Anders Persson, Håkan Gauffin, Seppo K. Koskinen   +4 more
doaj   +1 more source

Potential of photon-counting detector CT technology for contrast medium reduction in portal venous phase thoracoabdominal CT

European Radiology
To compare image quality and iodine attenuation intra-individually in portal venous phase photon-counting detector CT (PCD-CT) scans using protocols with different contrast medium (CM) volume.
Daniel Popp, Martin Siedlecki, Lena Friedrich, M. Haerting, C. Scheurig-Muenkler, Florian Schwarz, T. Kroencke, Stefanie Bette, J. Decker   +8 more
semanticscholar   +1 more source

Energetic Offset in Organic Solar Cells‐ Importance, Confusion and Outlook

Advanced Materials, EarlyView.
Energetic offsets in organic solar cells (OSCs) remain a subject of debate due to measurement‐ and lab‐dependent discrepancies. This Perspective clarifies the physical origins of these variations and identifies temperature‐dependent electro‐optical methods as a reliable approach to obtain consistent offset values.
Nakul Jain, Xian'e Li, Mats Fahlman, Olle Inganäs, Koen Vandewal, Feng Gao   +5 more
wiley   +1 more source

When Poor Exciton Dissociation Limits Photocurrents in Organic Solar Cells: Why Low Offset Non‐Fullerene Acceptor Blends Can't Be Efficient

Advanced Materials, EarlyView.
The energetic offset between the donor and the acceptor components in organic photoactive layers is central to the tradeoff between photovoltage and photocurrent losses. This Perspective covers the most important issues surrounding this topic in non‐fullerene acceptor blends, from the difficulty of accurately determining state energies and driving ...
Dieter Neher, Manasi Pranav
wiley   +1 more source

Modelling Polarization Effects in a CdZnTe Sensor at Low Bias

Sensors, 2023
Semi-insulating CdTe and CdZnTe crystals fabricated into pixelated sensors and integrated into radiation detection modules have demonstrated a remarkable ability to operate under rapidly changing X-ray irradiation environments.
Jindřich Pipek, Roman Grill, Marián Betušiak, Kris Iniewski   +3 more
doaj   +1 more source

Reducing contrast media and radiation dose in CT angiography at low tube voltage: animal study with photon-counting detector CT

European Radiology Experimental
Reducing radiation and contrast media (CM) doses in computed tomography angiography (CTA) is especially relevant for potentially vulnerable populations.
K. Klambauer, Thomas Flohr, L. Moser, V. Mergen, M. Eberhard, Andreas Prokein, H. Alkadhi, H. Pietsch, G. Jost   +8 more
semanticscholar   +1 more source

Spatial Control of Light‐Responsive Proteins and Optogenetics Within Hydrogels via Volumetric Bioprinting

Advanced Materials, EarlyView.
Spatiotemporal control over cell behavior within bioprinted constructs remains a key challenge in biofabrication. Volumetric bioprinting using multi‐wavelength light sources permits to activate light‐sensitive intracellular proteins as well as optogenetic gene and protein expression circuits in bioprinted cells, in addition to enabling fast printing of
Davide Ribezzi, Pere Català, Gabriel Größbacher, Paulina Nuñez Bernal, Olaf Nijssen, Sammy Florczak, Wilco Nijenhuis, Nuria Crusellas‐Villorbina, Bram Nijhoff, Paul Delrot, Jos Malda, Andreas Hierholzer, Martin Fussenegger, Lukas C. Kapitein, Riccardo Levato   +14 more
wiley   +1 more source

Advances in Computed Tomography for Whole-body Fine Bone Structure Imaging

CT Lilun yu yingyong yanjiu
Advances in computed tomography (CT) have accelerated scanning speeds and improved the spatial resolution of images. These improvements allow clearer visualization of whole-body fine bone structures, gradually enhancing the understanding of diseases and ...
Li YANG, Ruowei TANG, Pengfei ZHAO, Lisha WANG, Zhenchang WANG   +4 more
doaj   +1 more source

Material Decomposition in Low-Energy Micro-CT Using a Dual-Threshold Photon Counting X-Ray Detector

Frontiers in Physics, 2021
Material decomposition in computed tomography is a method for differentiation and quantification of materials in a sample and it utilizes the energy dependence of the linear attenuation coefficient.
Rasmus Solem, Till Dreier, Till Dreier, Isabel Goncalves, Isabel Goncalves, Martin Bech   +5 more
doaj   +1 more source

Defect‐Driven Charge Separation in Ba‐Doped SrTiO3: Correlating Photoelectrochemical Performance With Dye‐Selective Photocatalysis

Advanced Materials Interfaces, EarlyView.
Ba‐doped SrTiO3 perovskites establish a direct correlation between photoelectrochemical activity and photocatalytic performance. Optimized Ba0.5Sr0.5TiO3 exhibits enhanced charge separation, photocurrent generation, and visible‐light‐driven dye degradation through defect‐induced oxygen vacancies and lattice distortion.
Sagar A. Nikam, Somnath Ladhane, Vikas P. Mhaske, Gotan H. Jain, Sandesh R. Jadkar, Shashikant P. Patole, Ganesh E. Patil   +6 more
wiley   +1 more source