A5064847502- Advanced X-ray and CT Imaging
- Medical Imaging Techniques and Applications
- Advanced X-ray Imaging Techniques
- Advanced Electron Microscopy Techniques and Applications
- Nuclear Physics and Applications
- Electron and X-Ray Spectroscopy Techniques
- Integrated Circuits and Semiconductor Failure Analysis
- Particle Detector Development and Performance
- X-ray Spectroscopy and Fluorescence Analysis
- Radiation Dose and Imaging
- Medical Image Segmentation Techniques
- Optical measurement and interference techniques
- Advancements in Photolithography Techniques
- 3D Shape Modeling and Analysis
- Digital Holography and Microscopy
- 3D IC and TSV technologies
- Industrial Vision Systems and Defect Detection
- Digital Radiography and Breast Imaging
- Advanced Measurement and Metrology Techniques
- Radiation Shielding Materials Analysis
- Non-Destructive Testing Techniques
- Radiation Detection and Scintillator Technologies
- Image and Object Detection Techniques
- Pickering emulsions and particle stabilization
- Single-cell and spatial transcriptomics
University of Würzburg
2013-2023
Fraunhofer Institute for Nondestructive Testing
2010-2021
Walter de Gruyter (Germany)
2020-2021
Fraunhofer Institute for Integrated Circuits
2009-2020
Schott (Germany)
2017
Friedrich Schiller University Jena
2017
Fraunhofer Society
1993-2013
Friedrich-Alexander-Universität Erlangen-Nürnberg
2012
Fraunhofer Institute for Technological Trend Analysis
2011
Sprint (United States)
2003
Abstract Magnetic Particle Imaging (MPI) is a promising new tomographic modality for fast as well three-dimensional visualization of magnetic material. For anatomical or structural information an additional imaging such computed tomography (CT) required. In this paper, the first hybrid MPI-CT scanner multimodal providing simultaneous data acquisition presented.
Determining fiber length distribution in reinforced polymer components is a crucial step quality assurance, since has strong influence on overall strength, stiffness, and stability of the material. The approximate usually determined early development process, as conventional methods require destruction sample component. In this paper, novel, automatic, nondestructive approach for determination polymers presented. For purpose, high-resolution computed tomography used imaging method together...
In a comprehensive study, we demonstrate the performance and typical application scenarios for laboratory-based nano-computed tomography in materials research on various samples. Specifically, focus projection magnification system with nano source. The imaging resolution is quantified common 2D test structures validated 3D applications by means of Fourier Shell Correlation. As representative examples from nowadays material research, show metallization processes multilayer integrated...
Synchrotron real-time radioscopy and in situ microtomography are the only techniques providing direct visible information on a micrometre scale of local deformation implant–abutment connection (IAC) during after cyclic loading. The microgap formation at IAC has been subject to number studies as it proposed be associated with long-term implant success. next step this scientific development is focus fatigue procedure two-component dental implants. Therefore, an apparatus developed which...
The application of industrial CT covers many orders magnitude object sizes, ranging from freight containers (few meters) down to liquid foams (i.e. for food industry) or even parts insects which are only several hundreds micrometers in size. Similarly, the specifications acquisition speed extend over some magnitude, hours sub-second CT. We present current technology terms X-ray sources and detectors, along with numerous applications industry materials research: e.g. high-speed car pistons,...
X-ray imaging is an established tool for materials characterization even though it usually has the drawback of not being a quantitative method. This can be overcome by energy-sensitive methods such as basis material decomposition method presented in this paper, which provide results characterization.
With increasing miniaturization in industry and medical technology, non-destructive testing techniques are an area of ever-increasing importance. In this framework, X-ray microscopy offers efficient tool for the analysis, understanding, quality assurance microscopic samples, particular as it allows reconstructing three-dimensional data sets whole sample’s volume via computed tomography (CT). The following article describes a compact microscope hard regime around 9 keV, based on highly...
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Abstract The self‐assembly of block copolymers has captured the interest scientists for many decades because it can induce ordered structures and help to imitate complex found in nature. In contrast proteins, nature's most functional hierarchical structures, conventional polymers are disperse their length distribution. Here, we synthesized hydrophilic hydrophobic polypeptoids via solid‐phase synthesis (uniform) ring‐opening polymerization (disperse). Differential scanning calorimetry...
Abstract After an incremental development which took place over four decades, X-ray imaging has become important tool for non-destructive testing and evaluation. Computed Tomography (CT) in particular beholds the power of determining location flaws inclusions (e. g. castings composites) three-dimensional object coordinates. Therefore, thanks to a speed-up measurement, CT is now routinely considered in-line inspection electronics, composites. When precision not speed important, Micro-CT ( μ...
Abstract Graded distributions of copper particles in ultrafine‐grained aluminium sheets are produced by accumulative roll bonding and particle reinforcement. The metallic sprayed on the sheet surfaces under variation spray distance and/or relative velocity gun to sheet. Therewith, content could be varied a factor three. After solutionizing, successful gradation is clearly proven tensile tests showing steady monotonous gradient along rolling direction. By systematic analysis spraying process,...
We derive a propagator based formalism for optimizing phase contrast imaging in laboratory setups as well synchrotron setups. confirm on five different the known existence of an optimum position sample terms by measuring two types fibers and evaluating fringe contrast. Furthermore, we demonstrate these correlation our formula Hence, estimate this is given which only depends source size, detector blurring, total distance between detector.
In this paper we describe the optimization of transmission X-ray targets by Monte-Carlo simulation for a laboratory microscopy setup. We identified two optimal target layer thicknesses (0.1 μm and 0.7 μm) high-resolution high-flux target. Measurements show decrease in focal spot size one third or an increase flux factor three compared to those standard micro-focus Focal sizes down 154 nm 260 are achievable with optimized targets. Simulation results match well experimental results, whereas...
Experimental and theoretical results obtained in the MULTIPHAS-project (ESA-European Space Agency DLR-German Aerospace Center) are critically discussed regarding solidification kinetics of congruently melting glass forming Cu50Zr50 alloy samples. The samples investigated during using a containerless technique Electromagnetic Levitation Facility [1]. Applying elaborated methodologies for ground-based microgravity experimental investigations [2], primary dendritic is quantitatively evaluated....