A5035525979- Medical Imaging Techniques and Applications
- Advanced X-ray Imaging Techniques
- Advanced X-ray and CT Imaging
- Particle Detector Development and Performance
- Quantum Information and Cryptography
- Radiation Detection and Scintillator Technologies
- Quantum and electron transport phenomena
- Crystallography and Radiation Phenomena
- Photonic and Optical Devices
- Quantum Computing Algorithms and Architecture
- Particle Accelerators and Free-Electron Lasers
- Acoustic Wave Resonator Technologies
- CCD and CMOS Imaging Sensors
- Infrared Thermography in Medicine
- Quantum optics and atomic interactions
- Terahertz technology and applications
- Nuclear Physics and Applications
- Advancements in Photolithography Techniques
- Electron and X-Ray Spectroscopy Techniques
Elettra-Sincrotrone Trieste S.C.p.A.
2015-2019
University of Trieste
2016-2017
University of Siegen
2005-2013
Folkwang University of the Arts
2012-2013
We report on the experimental investigation of an individual pseudomolecule using trapped ions with adjustable magnetically induced J-type coupling between spin states. Resonances spins are well separated and addressed high fidelity. Quantum gates carried out microwave radiation in presence thermal excitation pseudomolecule's vibrations. Demonstrating controlled-NOT non-nearest neighbors serves as a proof-of-principle quantum bus employing chain. Combining advantageous features nuclear...
Dephasing---phase randomization of a quantum superposition state---is major obstacle for the realization high fidelity logic operations. Here, we implement two-qubit controlled-NOT gate using dynamical decoupling (DD), despite time being more than 1 order magnitude longer intrinsic coherence system. For realizing this universal conditional gate, have devised concatenated DD sequence that ensures robustness against imperfections pulses otherwise may destroy information or interfere with...
The PERCIVAL (Pixelated Energy Resolving CMOS Imager, Versatile And Large) soft X-ray 2D imaging detector is based on stitched, wafer-scale sensors possessing a thick epi-layer, which together with back-thinning and back-side illumination yields elevated quantum efficiency in the photon energy range of 125–1000 eV. Main application fields are foreseen science FELs synchrotron radiation. This requires high dynamic up to 105 ph @ 250 eV paired single sensitivity confidence at moderate frame...
The PERCIVAL soft X-ray imager is being developed by DESY, RAL, Elettra, DLS, and PAL to address the challenges at high brilliance Light Sources such as new-generation Synchrotrons Free Electron Lasers. Typical requirements for detector systems these sources are frame rates, large dynamic range, single-photon counting capability with low probability of false positives, quantum efficiency, (multi)-mega-pixel arrangements. a monolithic active pixel sensor, based on CMOS technology. It designed...
With the increased brilliance of state-of-the-art synchrotron radiation sources and advent free-electron lasers (FELs) enabling revolutionary science with EUV to X-ray photons comes an urgent need for suitable photon imaging detectors. Requirements include high frame rates, very large dynamic range, single-photon sensitivity low probability false positives (multi)-megapixels. At DESY, one ongoing development project - in collaboration RAL/STFC, Elettra Sincrotrone Trieste, Diamond, Pohang...
PERCIVAL ("Pixelated Energy Resolving CMOS Imager, Versatile And Large") is a monolithic active pixel sensor (MAPS) based on technology. Is being developed by DESY, RAL/STFC, Elettra, DLS, and PAL to address the various requirements of detectors at synchrotron radiation sources Free Electron Lasers (FELs) in soft X-ray regime. These include high frame rates FELs base-rate compatibility, large dynamic range, single-photon counting capability with low probability false positives, quantum...
In this paper, we are presenting the Percival detector, a monolithic CMOS Imager for detection of soft x-rays in Synchrotron Rings and Free Electron Lasers. The imager consists 2D array many (2M) small (27um pitch) pixels, without dead or blind zones imaging area. achieves low noise high dynamic range by means an adaptive-gain in-pixel circuitry, that has been validated on prototypes. features on-chip Analogue-to-Digital conversion to 12+1 bits, readout speed which is compatible with most...
In this work we present a novel 3D Monte Carlo photon transport program for simulation of multiple refractive scattering based on the properties X-rays in highly media, like lung tissue. Multiple reduces not only quality image, but contains also information internal structure object. This can be exploited utilizing image modalities such as Diffraction Enhanced Imaging (DEI). To study effect was developed that simulates X-ray photons monodisperse PMMA (poly-methyl-methacrylate) microspheres...
X-ray phase contrast imaging arises from changes of the propagation direction radiant wave field when traversing object and it can yield higher for soft tissues than conventional x-ray radiology based on attenuation. Commonly intermediate steps are required to transform front modulations into intensity measurable by detection system. One these techniques is analyzer-based (ABI), which utilizes an analyzer crystal as angular filter with a bandwidth in micro-radian regime placed between sample...
The Percival Collaboration is developing a high-speed,low X-ray energy detector capable of detecting single pho-tons while maintaining large dynamic range sensitivity.The increased brilliance state-of-the-art Synchrotronradiation sources and Free Electron Lasers require imagingdetectors taking advantage these light sourcefacilities. PERCIVAL (Pixelated Energy ResolvingCMOS Imager, Versatile Large) being de-veloped in collaboration between DESY, Elettra SincrotroneTrieste, Diamond Light...
Considerable interest has been manifested for the use of high-brilliance X-ray synchrotron sources and Free-Electron Lasers investigation samples.
Our integrated silica fiber resonator was developed as a very effective way to perform X-Y sex discrimination for spermatozoa bovine semen, but it can also serve general purpose device THz permittivity measurements on small liquid samples or water-dispersed cell material, thus covering wide range of applications from biosensing organic and inorganic fluid characterization. We observed contrast in excess 10% between an air-filled capillary one containing water when probing volume just few...
A Monte Carlo program based on a three dimensional vector approach was developed to model multiple refractive scattering of X-ray photons in objects with fine structure. particular interest paid the investigation lung tissue. Alveoli are low contrast and absorbing structures. Hence, they not visible conventional radiography which is changes absorption arising from density differences variation thickness composition object. Another possibility image structure use phase imaging techniques. As...