A5050873136- Radiation Detection and Scintillator Technologies
- Nuclear Physics and Applications
- Particle Detector Development and Performance
- Neutrino Physics Research
- Semiconductor materials and devices
- Fusion materials and technologies
- Electron and X-Ray Spectroscopy Techniques
- Nuclear Materials and Properties
- Electronic and Structural Properties of Oxides
- Semiconductor materials and interfaces
- Astrophysics and Cosmic Phenomena
- Boron and Carbon Nanomaterials Research
- Nuclear materials and radiation effects
- Rare-earth and actinide compounds
- Advanced X-ray and CT Imaging
- Silicon and Solar Cell Technologies
- X-ray Diffraction in Crystallography
- Advanced ceramic materials synthesis
- Superconducting Materials and Applications
- Magnetic and transport properties of perovskites and related materials
- ZnO doping and properties
- Physics of Superconductivity and Magnetism
- Radioactivity and Radon Measurements
- Ferroelectric and Piezoelectric Materials
- Muon and positron interactions and applications
University of Antwerp
2017-2019
Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear
2005-2015
Instituto Nacional de Higiene, Epidemiología y Microbiología
2009
The next generation of very-short-baseline reactor experiments will require compact detectors operating at surface level and close to a nuclear reactor. This paper presents new detector concept based on composite solid scintillator technology. target uses cubes polyvinyltoluene interleaved with 6LiF:ZnS(Ag) phosphor screens detect the products inverse beta decay reaction. A multi-tonne system built from these individual cells can provide precise localisation scintillation signals, making...
Abstract The calculation results of the atom displacement distribution induced by gamma radiation in superconducting material YBa 2 Cu 3 O 7– x are presented. Firstly, a direct procedure for inside given is introduced, starting from application energy flux values secondary electrons, formerly calculated using Monte Carlo method based code system MCNP‐4C. Finally, distribution, regarding occupied oxygen crystalline sites, presented different incident energies, where an threshold value 20 eV...
The SoLid experiment aims to measure neutrino oscillation at a baseline of 6.4 m from the BR2 nuclear reactor in Belgium. Anti-neutrinos interact via inverse beta decay (IBD), resulting positron and neutron signal that are correlated time space. detector operates surface building, with modest shielding, relies on extremely efficient online rejection backgrounds order identify these interactions. A novel design has been developed using 12800 5 cm cubes for high segmentation. Each cube is...
This paper presents a comprehensive optimisation study to maximise the light collection efficiency of scintillating cube elements used in SoLid detector. Very short baseline reactor experiments, like SoLid, look for active sterile neutrino oscillation signatures anti-neutrino energy spectrum as function distance core and energy. Performing precise search requires high yield uniformity response detector volume. The experiment uses an innovative hybrid technology with two different...
The SoLid experiment has been designed to search for an oscillation pattern induced by a light sterile neutrino state, utilising the BR2 reactor of SCK⋅CEN, in Belgium. detector leverages new hybrid technology, two distinct scintillators cubic array, creating highly segmented volume. A combination 5 cm polyvinyltoluene cells, with 6LiF:ZnS(Ag) sheets on faces each cube, facilitate reconstruction signals. Whilst high granularity provides powerful toolset discriminate backgrounds; itself...
In the present work extended Monte Carlo assisted Classical Method (MCCM) is presented. The method consists on a calculation procedure for determination of displacements per atom (dpa) distribution in solid materials, which allows studying gamma irradiation damage different materials. same one based electrons elastic scattering classic theories and makes use simulation physical processes involved radiation interactions with substance. Recently, contribution from positrons to dpa...
Present contribution deals with Monte Carlo simulation of atom displacements rates resulting in solids based on a calculation algorithm supporting the description conditions favouring occurrence single fast electron elastic scattering solids, leading to displacement atoms from their crystalline sites. Firstly, McKinley-Feshbach differential cross-section renormalization is introduced by considering events angles only within interval [θ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML"...
Present contribution deals with the theoretical description of conditions favoring occurrence single fast electron elastic scattering in solids, leading to displacement atoms from their crystalline sites.
The aim of the present work is to study radiation damage induced in LYSO and LuYAP crystals by gamma secondary electrons/positrons generated. displacements per atom (dpa) distributions inside each material were calculated following Monte Carlo assisted Classical Method (MCCM) introduced authors. As sources used Sc-44, Na-22 V-48. Also energy gammas from annihilation processes (511 keV) was included study. This procedure allowed studying in-depth dpa crystal for all four sources. It also...
The Monte Carlo simulation of small animal conventional positron emission tomography (PET) is an important tool for geometry parameters optimization, image reconstruction algorithm tests, performance different radioisotopic sources and some others. present work deals with the study a cylindrical PET system in framework GEANT4 code. Two accepted ring width values spherical 18F 44Sc isotopes were considered. Then, improvement detection efficiency spatial resolution was analyzed all cases.
The present work reports the results of a first study elemental composition in airborne particulate matter (fine and coarse) collected at Municipality Centro Habana, Havana City, Cuba, using PIXE technique. At present, there is not any information available about element contents from this region. A five months sampling campaign was carried out, collecting samples under an air flux 20 l/min with Gent SFU Sampler equipped system which allows aerosol collection both size fractions...
The present paper synthesizes the results obtained in evaluation of a 64 microstrips crystalline silicon detector coupled to RX64 ASIC, designed for high‐energy physics experiments, as useful X‐ray advanced medical radiography, specifically digital mammography. Research includes acquisition two‐dimensional radiography mammography phantom using scanning method, and comparison experimental profile with mathematically simulated one. also shows images three biological samples taken from breast...
The radiation damage created in silicon materials by <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">57</sup> Mn→ Fe ion implantation has been studied and characterized Mössbauer spectroscopy showing four main lines, assigned to: substitutional, interstitial damaged configuration sites of the implanted ions. Nevertheless, spectrum this remains with some ambiguous identification regarding configurations before after annealing, specially its...
During the earliest tests of a free‐air ionization chamber poor response to X‐rays emitted by several sources was observed. Then, Monte Carlo simulation transport in matter employed order evaluate behavior as detector. The photons energy deposition dependence with depth and its integral value all active volume were calculated. obtained results reveal that designed device geometry is feasible be optimized.