A5028291064- Particle Detector Development and Performance
- Particle physics theoretical and experimental studies
- Radiation Detection and Scintillator Technologies
- High-Energy Particle Collisions Research
- Particle Accelerators and Free-Electron Lasers
- CCD and CMOS Imaging Sensors
- Quantum Chromodynamics and Particle Interactions
- Particle accelerators and beam dynamics
- Radiation Effects in Electronics
- Advanced X-ray Imaging Techniques
- Gyrotron and Vacuum Electronics Research
- Medical Imaging Techniques and Applications
- Superconducting Materials and Applications
- Advanced Data Storage Technologies
- Advancements in PLL and VCO Technologies
- Terahertz technology and applications
- Distributed and Parallel Computing Systems
- Photocathodes and Microchannel Plates
- Photonic and Optical Devices
- Image Processing Techniques and Applications
- Spectroscopy and Laser Applications
- Nuclear Physics and Applications
- Atomic and Subatomic Physics Research
- Advanced X-ray and CT Imaging
- Advancements in Photolithography Techniques
Karlsruhe Institute of Technology
2015-2024
University of Turin
2022
European Organization for Nuclear Research
2009-2019
Max Planck Institute for Nuclear Physics
2017-2019
Helmholtz-Zentrum Berlin für Materialien und Energie
2019
Varian Medical Systems (Germany)
2019
Rutherford Appleton Laboratory
2018
University of Bristol
2018
Brunel University of London
2018
Imperial College London
2018
We study the shape of flux tube in lattice Yang-Mills theories and particular its intrinsic width. In framework Effective String Theory description confining this width has no measurable effects on inter-quark static potential, but it can be precisely detected looking at profile tube. address problem with a set high precision simulations (2+1) dimensional $\mathrm{SU}(2)$ model. find two different behaviours as function temperature. low temperature regime ($T \ll T_c$) we good agreement an...
We study the shape of flux tube in lattice Yang-Mills theories and particular its intrinsic width. In framework Effective String Theory description confining this width has no measurable effects on inter-quark static potential, but it can be precisely detected looking at profile tube. address problem with a set high precision simulations (2+1) dimensional SU(2) model. find two different behaviours as function temperature. low temperature regime ($T \ll T_c$) we good agreement an expression...
Abstract Designed for accelerator beam diagnostics and photon science applications, KALYPSO is a line array camera that stands out its high-speed performance with the ability to operate at rates up 12 Mfps in continuous readout mode while maintaining full occupancy. In this contribution, system sensor based on TI-LGAD presented. The latest version of employed as diagnostic imaging measure radiation profiles particle KIT accelerator, KARA. system's key features will be presented, including...
A new tracking detector is under development for use by the CMS experiment at High-Luminosity LHC (HL-LHC). crucial requirement of this upgrade to provide ability reconstruct all charged particle tracks with transverse momentum above 2–3 GeV within 4 μs so they can be used in Level-1 trigger decision. concept an FPGA-based track finder using a fully time-multiplexed architecture presented, where candidates are reconstructed projective binning algorithm based on Hough Transform, followed...
Abstract The PANDA (antiProton ANnihilation at DArmstadt) experiment will study the strong interaction in annihilation reactions between an antiproton beam and a stationary cluster jet target. detector be composed of several sub-detectors designed for tracking, particle identification calorimetry. Micro-Vertex Detector (MVD) is innermost part tracking system surrounding region, which precise vertex detection. It consists silicon pixel double-sided microstrip detectors. For readout sensors...
Abstract The ToASt ASIC is a 64-channel integrated circuit developed for the readout of Silicon strip detector project designed to be placed in Micro-Vertex Detector PANDA experiment. implemented commercial 110 nm CMOS technology and can provide information on position, time, deposited energy particle passing through detector. Its time resolution given by its 160 MHz master clock. has been framework European FAIRnet project. chip characterized electrically both standalone coupled with...
We developed a direct memory access (DMA) engine compatible with the Xilinx PCI Express (PCIe) core to provide high-performance and low-occupancy alternative commercial solutions. In order maximize PCIe throughput while minimizing FPGA resources utilization, DMA adopts novel strategy where address list is stored inside not in central of host CPU. The design package complemented simple register control by Linux driver. Families 6 7, operates endpoint Generation 1 2 all lane configurations...
In this article we present the quantitative characterization of CCD and CMOS sensors which are used at experiments for microtomography operated by HZG PETRA III DESY in Hamburg, Germany. A standard commercial camera is compared to a based on sensor. This modified grating-based differential phase-contrast tomography. The main goal project quantify optimize statistical parameters system. These key performance such as readout noise, conversion gain full-well capacity define an optimized...
This article describes complete characterization of the polygonal dislocation half-loops (PDHLs) introduced by scratching and subsequent bending an Si(111) crystal. The study is based on X-ray topo-tomography technique using both a conventional laboratory setup high-resolution image-detecting systems at synchrotron facilities KIT (Germany) ESRF (France). Numerical analysis PDHL images performed Takagi–Taupin equations simultaneous algebraic reconstruction (SART) tomographic algorithm.
Multi-pixel fast silicon detectors represent the enabling technology for next generation of space-borne experiments devoted to high-resolution spectral-timing studies low-flux compact cosmic sources. Several imaging based on frame-integration have been developed as focal plane devices X-ray missions but, when coupled large-area concentrator optics, these are affected by strong pile-up and dead-time effects, thus limiting time energy resolution well overall system sensitivity. The current...
The recording of coherent synchrotron radiation requires data acquisition systems with a temporal resolution tens picosecond. This paper describes new real-time and high-accuracy system suitable for individual ultra-short pulses generated by fast terahertz (THz) detector (e.g. YBCO, NbN, Zero Biased Schottky Diode). consists sampling board combined high throughput readout. first is designed the pulse signals full width half maximum (FWHM) between few to one hundred picoseconds minimum time 3...
X-ray computer tomography is a powerful method for nondestructive investigations in many fields. Three-dimensional images of internal structure are reconstructed from sequence two-dimensional projections. The polychromatic high density photon flux modern synchrotron light sources offer hard imaging with spatio-temporal resolution up to the micrometer and micrometers range. Existing indirect image detection systems can be adapted fast acquisition by high-speed visible-light cameras. In this...
Modern data acquisition and trigger systems require a throughput of several GB/s latencies the order microseconds. To satisfy such requirements, heterogeneous readout system based on FPGA cards GPU-based computing nodes coupled by InfiniBand has been developed. The incoming from back-end electronics is delivered directly into internal memory GPUs through dedicated peer-to-peer PCIe communication. High performance DMA engines have developed for direct communication between FPGAs using...
Dedicated optics with extremely short electron bunches enable synchrotron light sources to generate intense coherent THz radiation. The high degree of spatial compression in this so-called low-alpha entails a complex longitudinal dynamics the bunches, which can be probed studying fluctuations emitted terahertz radiation caused by micro-bunching instability ("bursting"). This article presents "quasi-instantaneous" method for measuring bursting characteristics simultaneously collecting and...
The Silicon Pixel Detector (SPD) is the innermost element of ALICE Inner Tracking System (ITS). SPD consists two barrel layers hybrid silicon pixels surrounding beam pipe with a total ≈ 107 pixel cells. features very low material budget, 99.9% efficient bidimensional digital response, 12 μm spatial precision in bending plane (rϕ) and prompt signal as input to L0 trigger. commissioning experimental area well advanced it includes calibration runs internal pulse cosmic ray runs. In this...
PCI Express (PCIe) is a high-speed serial point-to-point interconnect that delivers high-performance data throughput. KIT has developed Direct Memory Access (DMA) engine compatible with the Xilinx PCIe core to provide smart and low-occupancy alternative logic expensive commercial solutions. In order maximize throughput DMA adopts new strategy, where descriptor list stored inside FPGA not in central memory system. The design package complemented simple register access control by Linux driver....
At KARA, the Karlsruhe Research Accelerator of Institute Technology synchrotron, so-called short-bunch operation mode allows reduction bunch length down to a few picoseconds. The microbunching instability resulting from high degree longitudinal compression leads fluctuations in emitted terahertz radiation, referred as bursting. For extremely compressed bunches at bursting occurs not only one but two different bunch-current ranges that are separated by stable region. This work presents...
Abstract At the visible light diagnostic (VLD) port at Karlsruhe Research Accelerator (KARA), it is possible to study energy spread of electron bunches by measuring horizontal bunch profile incoherent synchrotron radiation. KALYPSO, an MHz-rate line-array detector, has been employed measure profile. Recently, KALYPSO system upgraded a version microstrip sensor based on TI-LGAD. The measurements have shown that system’s overall sensitivity was significant - least factor 20 improved, enabling...
Electron accelerators and synchrotrons can be operated to provide short emission pulses due longitudinally compressed or substructured electron bunches. Above a threshold current, the high charge density leads microbunching instability formation of substructures on bunch shape. These time-varying bunches picoseconds-long duration lead bursts coherent synchrotron radiation in terahertz frequency range. Therefore, spectral information this range contains valuable about length, shape...