A5043480397- Particle Detector Development and Performance
- Advanced X-ray Imaging Techniques
- Medical Imaging Techniques and Applications
- Radiation Detection and Scintillator Technologies
- Advanced X-ray and CT Imaging
- Advancements in Photolithography Techniques
- Luminescence Properties of Advanced Materials
- Advanced Semiconductor Detectors and Materials
- X-ray Spectroscopy and Fluorescence Analysis
- Ionic liquids properties and applications
- Nuclear Physics and Applications
- Silicon and Solar Cell Technologies
- Electron and X-Ray Spectroscopy Techniques
- Radiation Therapy and Dosimetry
- Advancements in Semiconductor Devices and Circuit Design
- CCD and CMOS Imaging Sensors
- Inorganic Fluorides and Related Compounds
- Advanced Electron Microscopy Techniques and Applications
- Silicon Nanostructures and Photoluminescence
- Advanced Radiotherapy Techniques
- Sensor Technology and Measurement Systems
- Particle physics theoretical and experimental studies
- Glass properties and applications
- Electrochemical Analysis and Applications
- Atomic and Subatomic Physics Research
University of Münster
2025
Imperial College London
2021-2024
Carl von Ossietzky Universität Oldenburg
2023
Deutsches Elektronen-Synchrotron DESY
2012-2021
European X-Ray Free-Electron Laser
2018-2021
Universität Hamburg
1999-2020
Center for Free-Electron Laser Science
2014-2020
Imperial Valley College
2019
Cornell University
2014-2018
Vifor Pharma (Switzerland)
2013
A new circuit element and control device, the thermistor, or thermally sensitive resistor, is made of solid semiconducting materials whose resistance decreases about four per cent degree centigrade. The thermistor presents interesting opportunities to designer engineer in many fields technology for accomplishing tasks more simply, economically, better than with available devices. Part I discusses conduction mechanism semiconductors criteria usefulness elements from them. fundamental physical...
<?Pub Dtl=""?> We present the development of DSSC instrument: an ultra-high speed detector system for new European XFEL in Hamburg. The will be able to record X-ray images with a maximum frame rate 4.5 MHz. is based on silicon pixel sensor DEPFET as central amplifier structure and has detection efficiency close 100% X-rays from 0.5 keV up 10 keV. have size approximately 210 <formula formulatype="inline" xmlns:mml="http://www.w3.org/1998/Math/MathML"...
The Adaptive Gain Integrating Pixel Detector (AGIPD) is an X-ray imager, custom designed for the European Free-Electron Laser (XFEL). It a fast, low-noise integrating detector, with adaptive gain amplifier per pixel. This has equivalent noise of less than 1 keV when detecting single photons and, switched into another state, dynamic range more 10 4 12 keV. In burst mode system able to store 352 images while running at up 6.5 MHz, which compatible 4.5 MHz frame rate XFEL. AGIPD was installed...
A new circuit element and control device, the thermistor or thermally sensitive resistor, is made of solid semiconducting materials whose resistance decreases about four per cent centigrade degree. The presents interesting opportunities to designer engineer in many fields technology for accomplishing tasks more simply, economically better than with available devices. Part I discusses conduction mechanism semiconductors criteria usefulness elements from them. fundamental physical properties...
AGIPD—(Adaptive Gain Integrating Pixel Detector) is a hybrid pixel X-ray detector developed by collaboration between Deutsches Elektronen-Synchrotron (DESY), Paul-Scherrer-Institut (PSI), University of Hamburg and the Bonn. The designed to comply with requirements European XFEL. radiation tolerant Application Specific Integrated Circuit (ASIC) following highlights: high dynamic range, spanning from single photon sensitivity up 104 12.5keV photons, achieved use gain switching technique using...
Ionic liquids are attractive liquid materials for many advanced applications. For targeted design, in-depth knowledge about their structure-property-relations is urgently needed. We prepared a set of novel protic ionic (PILs) with guanidinium cation either an ether or alkyl side chain and different anions. While being promising class, the available data insufficient to guide design. measured thermal transport properties, nuclear magnetic resonance (NMR) spectra as well crystalline structures...
Color centers in hexagonal boron nitride (hBN) are promising candidates as quantum light sources for future technologies. In this work, we utilize a scattering-type near-field optical microscope (s-SNOM) to study the photoluminescence (PL) emission characteristics of such emitters metalorganic vapor phase epitaxy grown hBN. On one hand, demonstrate direct excitation and through interaction with nanofocus tip resulting sub-diffraction limited tip-enhanced PL hotspot. other show that indirect...
Synchrotrons can provide very intense and focused X-ray beams, which be used to study the structure of matter down atomic scale. In many experiments, quality results depends strongly on detector performance; in particular, experiments studying dynamics samples require fast, sensitive detectors. "LAMBDA" is a photon-counting hybrid pixel system for at synchrotrons, based Medipix3 readout chip. Its main features are combination comparatively small size (55 μm), high speed up 2000 frames per...
This document presents the technical layout and envisaged performance of Electromagnetic Calorimeter (EMC) for PANDA target spectrometer. The EMC has been designed to meet physics goals experiment, which is being developed Facility Antiproton Ion Research (FAIR) at Darmstadt, Germany. figures are based on extensive prototype tests radiation hardness studies. shows that ready construction up front-end electronics interface.
When radiotherapy with photon energies greater than 10 MV is performed neutrons contaminate the beam. In this paper neutron contamination of 15 mode Siemens Primus accelerator was studied. The Monte Carlo code MCNPX used for description treatment head and room. results were verified by studying depth dose curve beam profiles in a water phantom. After these verifications locations production studied source spectrum strength calculated. response paired Mg/Ar MgB/Ar ionization chamber system...
The Medipix3 photon counting readout chip has a range of features — small pixel size, high rate and inter-pixel communication which make it attractive for X-ray scattering imaging at synchrotrons. DESY have produced prototype large-area detector module that can carry 6 by 2 array chips (1536 512 pixels), be used with single large silicon sensor (85mm 28mm) or two ``hexa'' high-Z sensors. head is designed to tilable compatible low temperatures, will allow speed parallel the chips. It consists...
Pixel Array Detectors (PADs) consist of an x-ray sensor layer bonded pixel-by-pixel to underlying readout chip. This approach allows both the and custom pixel electronics be tailored independently best match imaging requirements. Here we present characterizations CdTe sensors hybridized with two different charge-integrating chips, Keck PAD Mixed-Mode (MM-PAD), developed previously in our laboratory. The architecture each these PADs extends instantaneous counting rate by many orders magnitude...
The curled cation structures of ionic liquids with three ether groups show significantly accelerated dynamics compared to the structural analogues alkyl side chains.