A5053254290- Particle Accelerators and Free-Electron Lasers
- Particle Detector Development and Performance
- Superconducting Materials and Applications
- Advanced MEMS and NEMS Technologies
- Mechanical and Optical Resonators
- Particle accelerators and beam dynamics
- Microfluidic and Bio-sensing Technologies
- Radiation Therapy and Dosimetry
- Particle physics theoretical and experimental studies
- Nuclear Physics and Applications
- Solar Radiation and Photovoltaics
- Laser-Plasma Interactions and Diagnostics
- Photovoltaic System Optimization Techniques
- Radiation Detection and Scintillator Technologies
- Force Microscopy Techniques and Applications
- High-Energy Particle Collisions Research
- High-Velocity Impact and Material Behavior
- Computer Graphics and Visualization Techniques
- Visual Attention and Saliency Detection
- Energy and Environment Impacts
- Graphite, nuclear technology, radiation studies
- Advanced X-ray Imaging Techniques
- Fire Detection and Safety Systems
- International Science and Diplomacy
- Micro and Nano Robotics
University of Malta
2012-2024
European Organization for Nuclear Research
2011-2014
The CERN Large Hadron Collider (LHC) is designed to collide proton beams of unprecedented energy, in order extend the frontiers high-energy particle physics. During first very successful running period 2010--2013, LHC was routinely storing protons at 3.5--4 TeV with a total beam energy up 146 MJ, and even higher stored energies are foreseen future. This puts extraordinary demands on control losses. An un-controlled loss tiny fraction could cause superconducting magnet undergo transition into...
Microgrippers are typical microelectromechanical systems (MEMS) that widely used for micromanipulation and microassembly in both biological micromanufacturing fields. This paper presents the design, modelling, fabrication experimental testing of an electrothermal microgripper based on a 'hot cold arm' actuator design is suitable deformability characterisation human red blood cells (RBCs). The analysis mechanical properties RBCs great interest field medicine as pathological alterations...
Improving the efficiency of silicon-based solar cells is imperative to maximise harnessing power. The current improvements in were attained by better manufacturing techniques and purer materials. There however indirect evidence that so-called agglomerated grown-in defects silicon have a direct impact on cell if this case, could be improved crystal engineering. This study focuses understanding defect generation growth mechanisms commercial crystals their efficiency. Silicon wafers from...
Microelectromechanical systems (MEMS) have established themselves within various fields dominated by high-precision micromanipulation, with the most distinguished sectors being microassembly, micromanufacturing and biomedical ones. This paper presents a horizontal electrothermally actuated 'hot cold arm' microgripper design to be used for deformability study of human red blood cells (RBCs). In this study, width layer composition arm are varied investigate effects dimensional material...
This study aims to quantify the size and intensity of umbra penumbra shadows on photovoltaic (PV) modules assess resulting potential power loss using image analysis techniques. An innovative algorithm, developed from open-source code, was employed analyze shadow characteristics, alongside outdoor experiments measure raw caused by thin objects shading PV module. Spearman correlation revealed a weak negative between object distance, which strengthens with increased thickness. For larger range...
The correct functioning of a collimation system is crucial to safely operate highly energetic particle accelerators, such as the Large Hadron Collider (LHC). requirements handle high intensity beams can be demanding. In this respect, investigating consequences LHC hitting tertiary collimators (TCTs) in experimental regions fundamental issue for machine protection. An test was designed investigate robustness and effects beam accidents on fully assembled collimator, based accident scenarios...
Recent developments in MEMS technologies have made such devices attractive for use applications that involve precision engineering and scalability. In the biomedical industry, gained popularity recent years as single-cell manipulation characterisation tools. A niche application is mechanical of single human red blood cells, which may exhibit certain pathological conditions impart biomarkers quantifiable magnitude are potentially detectable via devices. Such come with stringent thermal...
Microelectromechanical systems (MEMS) are the instruments of choice for high-precision manipulation and sensing processes at microscale. They are, therefore, a subject interest in many leading industrial academic research sectors owing to their superior potential applications requiring extreme precision, as well use scalable device. Certain tend require MEMS device function with low operational temperatures, within fully immersed conditions various media different flow parameters. This study...
The ongoing development of microelectromechanical systems (MEMS) over the past decades has made possible achievement high-precision micromanipulation within micromanufacturing, microassembly and biomedical fields. This paper presents different design variants a horizontal electrothermally actuated MEMS microgripper that are developed as microsystems to micromanipulate study deformability properties human red blood cells (RBCs). presented all based on U-shape ‘hot cold arm’ actuator...
The presence of particles with a small but finite size, suspended in viscous fluids low volumetric concentrations, is observed many applications. present study focuses on the tridimensional and incompressible lid-driven flow Newtonian through application immersed boundary method Euler–Lagrange approach. These methods are used to numerically predict three-dimensional particle motion by considering nearly neutrally buoyant conditions as well all relevant elementary processes (drag lift forces,...
At present, the beam-based alignment of LHC collimators is performed by touching beam halo with both jaws each collimator. This method requires dedicated fills at low intensities that are done infrequently and makes this procedure time consuming. limits operational flexibility, in particular case changes optics orbit configuration experimental regions. The performance collimation system relies on machine reproducibility regular loss maps to validate settings collimator jaws. To overcome...
The impact of shading has been a prominent subject discourse within the realm photovoltaic (PV) energy harvesting and is recognized as significant detriment to system’s overall efficiency. Nevertheless, prevailing investigations, which predominantly focus on hard originating from building structures vegetation, singularly address umbra shadow phenomenon while overlooking complexity properties their varying intensities. In this context, present research aims analyze caused by thin objects,...
The CERN Large Hadron Collider (LHC) is designed to accelerate and bring into collision high-energy protons as well heavy ions. Accidents involving direct beam impacts on collimators can happen in both cases. LHC collimation system handle the demanding requirements of high-intensity proton beams. Although beams have 100 times higher power than nominal lead ion beams, specific problems might arise case losses due different particle-collimator interaction mechanisms when compared protons. This...
The correct functioning of a collimation system is crucial to safely and successfully operate high-energy particle accelerators, such as the Large Hadron Collider (LHC). However, requirements handle high-intensity beams can be demanding, accident scenarios must well studied in order assess if collimator design robust against possible error scenarios. One catastrophic, though not very probable, identified within LHC an asynchronous beam dump. In this case, one (or more) 15 precharged kicker...
The biomechanical feedback of biological tissue is difficult to measure.A spinal segment model can be used obtain fundamental information by means a computer simulation using finite element analysis.