A5010588707- Advanced X-ray Imaging Techniques
- X-ray Spectroscopy and Fluorescence Analysis
- Advanced X-ray and CT Imaging
- Nuclear Physics and Applications
- Atomic and Molecular Physics
- Advanced Chemical Physics Studies
- Electron and X-Ray Spectroscopy Techniques
- Astrophysical Phenomena and Observations
- Inorganic Fluorides and Related Compounds
- Medical Imaging Techniques and Applications
- Zeolite Catalysis and Synthesis
- Mesoporous Materials and Catalysis
- Cultural Heritage Materials Analysis
- Lanthanide and Transition Metal Complexes
- Embedded Systems Design Techniques
- Plasmonic and Surface Plasmon Research
- Smart Grid Energy Management
- Spectroscopy and Quantum Chemical Studies
- Neuroethics, Human Enhancement, Biomedical Innovations
- Numerical Methods and Algorithms
- Analytical Chemistry and Chromatography
- Context-Aware Activity Recognition Systems
- IoT and Edge/Fog Computing
- Atmospheric Ozone and Climate
- Particle Detector Development and Performance
Westsächsische Hochschule Zwickau
2014-2023
Fischer (Germany)
2018-2021
Federal Institute For Materials Research and Testing
2010-2019
Leibniz University Hannover
2009-2018
SENTECH Instruments (Germany)
2011-2016
Czech Academy of Sciences, Institute of Scientific Instruments
2015
Institut für angewandte Photonik
2011-2013
Université Libre de Bruxelles
2009-2012
Klinik und Poliklinik für Psychotherapie und Psychosomatik
2011
TU Dresden
2011
For many applications there is a requirement for nondestructive analytical investigation of the elemental distribution in sample. With improvement X-ray optics and spectroscopic imagers, full field fluorescence (FF-XRF) methods are feasible. A new device high-resolution imaging, an energy spatial resolving camera, presented. The basic idea behind this so-called "color camera" (CXC) to combine dispersive array detector X-rays, case pnCCD, with polycapillary optics. Imaging achieved using...
The sulfur electron affinities ${}^{e}A$(S) are measured by photodetachment microscopy for the two isotopes $^{32}\mathrm{S}$ and $^{34}\mathrm{S}$ ($16$ $752.975$ 3(41) $16$ $752.977$ 6(85) cm${}^{\ensuremath{-}1}$, respectively). isotope shift in affinity is found to be more probably positive, ${}^{e}A$($^{34}\mathrm{S}$)$\ensuremath{-} {}^{e}A$($^{32}\mathrm{S}$) $=+0.0023(70)$ but uncertainty allows possibility that it may either ``normal'' [${}^{e}A$($^{34}\mathrm{S}$) $>...
New three-dimensional full-field XRF imaging schemes are demonstrated using biological samples: the pros and cons with respect to traditional scanning techniques given.
A full field-X-ray camera (FF-XRC) was developed for performing the simultaneous mapping of chemical elements with a high lateral resolution. The device is based on conventional CCD detector coupled to straight shaped polycapillary. Samples are illuminated at once broad primary beam that can consist X-rays or charged particles in two different analytical setups. characteristic photons induced samples guided by polycapillary allowing elemental imaging without need scanning. single photon...
Phoenician ivory objects (8(th) century B.C., Syria) from the collections of Badisches Landesmuseum, Karlsruhe, Germany, have been studied with full field X-ray fluorescence microimaging, using synchrotron radiation (SR-FF-microXRF). The innovative Color Camera (CXC), a full-field detection device (SLcam), was used at beamline ANKA facility (ANKA-FLUO, KIT, Germany) to noninvasively study trace metal distributions surface archeological objects. outstanding strength imaging technique CXC is...
Absorption effects in total reflection X-ray fluorescence (TXRF) analysis are important to consider, especially if external calibration is be applied.
The color X-ray camera SLcam(R) is a full-field, single photon detector providing scanning free, energy and spatially resolved imaging. Spatial resolution achieved with the use of polycapillary optics guiding photons from small regions on sample to distinct dispersive pixels CCD. Applying sub-pixel resolution, signals individual capillary channels can be distinguished. Accordingly spatial released pixel size being confined rather diameter channels. In this work new approach algorithm...
We present results of recent development the color X‐ray camera, type SLcam®, allowing detection images with few microns resolution. Such spectral resolution is achieved use high‐quality polycapillary optics combined sub‐pixel Imaging Siemens star test chart reveals that limit SLcam® can go down to nearly 5μm. Several real sample examples measurements carried out at laboratory, synchrotron, and particle‐induced emission beamlines are shown. This first time used as detector. Copyright © 2015...
The measurement of thin slices with a color X-ray camera allows the 3D reconstruction elemental distributions fluorescence.
A new setup for fast spatially resolved measurements of elemental trace amounts under total reflection conditions using a colour X-ray camera is described. Samples prepared on conventional fluorescence (TXRF) reflectors were measured at BESSY II synchrotron. spatial resolution 50 × μm2 was obtained, while the required time investigation 10 mm2 sample 30 seconds. The set-up up to 350 times faster than systems traces. major components are polycapillary optics and pn-CCD chip with an active...
In the quest for finding ideal synchrotron-radiation-induced imaging method investigation of trace element distributions in human bone samples, experiments were performed using both a scanning confocal synchrotron radiation micro X-ray fluorescence (SR-µXRF) (FLUO beamline at ANKA) setup and full-field color camera (BAMline BESSY-II) setup. As zinc is special interest bone, setups optimized its detection. The compared with respect to count rate, required measurement time spatial resolution....
For the element niobium, whose energy level structure was considered to be well known regarding low-lying levels, values of four listed in Moore's tables atomic were found incorrect. The correct positions these levels have been revealed, and, additionally, two new detected using laser-induced fluorescence spectroscopy wavelength region from 470 nm 505 nm.
The color X-ray camera (SLcam®) is a full-field single photon imager. As stand-alone camera, it applicable for energy and space-resolved detection measurements. exchangeable poly-capillary optics in front of beryllium entrance window conducts photons from the probe to distinguished dispersive pixels on pnCCD. dedicated software enables acquisition online processing spectral data all 69696 pixels, leading real-time visualization element distribution sample. No scanning system employed. A...
Formal methods are a promising alternative to simulation-based verification of mixed-signal systems. However, in practice, such fail scale with heterogeneity and complexity today's analog/mixed-signal Furthermore, it is unclear how they can be integrated into existing flows. This paper shows path overcome these obstacles. The idea use hierarchical flow, which components verified by formal or multirun simulation. To transport results across hierarchies, we represent parameters properties...