A5054632033- Magnetic confinement fusion research
- Particle accelerators and beam dynamics
- Superconducting Materials and Applications
- Plasma Diagnostics and Applications
- Ionosphere and magnetosphere dynamics
- Fusion materials and technologies
- Gyrotron and Vacuum Electronics Research
- Antenna Design and Analysis
- Electromagnetic Scattering and Analysis
- Insect and Arachnid Ecology and Behavior
- Insect and Pesticide Research
- Nuclear reactor physics and engineering
- Underwater Vehicles and Communication Systems
- Advanced Antenna and Metasurface Technologies
- Plant and animal studies
- Electromagnetic Simulation and Numerical Methods
- Energy Harvesting in Wireless Networks
- Electromagnetic Compatibility and Measurements
- Antenna Design and Optimization
- Geophysical Methods and Applications
- Laser-Plasma Interactions and Diagnostics
- Electromagnetic Compatibility and Noise Suppression
- Precipitation Measurement and Analysis
- Telecommunications and Broadcasting Technologies
- Electrostatic Discharge in Electronics
Polytechnic University of Turin
2016-2025
National Agency for New Technologies, Energy and Sustainable Economic Development
2011-2022
University of Padua
2022
Culham Science Centre
2012-2016
Max Planck Society
2015
Max Planck Institute for Plasma Physics
2007-2015
Radiotelevisione Italiana (Italy)
2014
CEA Cadarache
2011-2013
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2011-2013
Royal Military Academy
2011
One of the most popular technologies adopted for indoor localization is ultrawideband impulse radio (IR-UWB). Due to its peculiar characteristics, it able overcome multipath effect that severely reduces capability receivers (sensors) estimate position transmitters (tags) in complex environments. In this article, we introduce a new low-cost real-time locating system (RTLS) does not require time synchronization among sensors and uses one-way communication scheme reduce cost complexity tags....
The European DEMO is a pulsed device with pulse length of 2 hours. functions devoted to the heating and current drive system are: plasma breakdown, ramp-up flat-top where fusion reactions occur, control during phase, finally ramp-down. EU-DEMO project was in Pre-Concept Design Phase 2014-2020, meaning that some cases, design values precise requirements from physics point view were not yet frozen. A total 130 MW considered for all phases plasma: flat top, 30 required neoclassical tearing...
The demand for a predictive tool to help in designing ion-cyclotron radio frequency (ICRF) antenna systems today's fusion experiments has driven the development of codes such as ICANT, RANT3D, and early TOPICA (TOrino Polytechnic Ion Cyclotron Antenna) code. This paper describes substantive evolution formulation implementation that presently allow it handle actual geometry ICRF antennas (with curved, solid straps, general-shape housing, Faraday screen, etc) well an accurate plasma...
The Advanced LOwer Hybrid Antenna (ALOHA) code, has been developed to improve the modelling of coupling lower hybrid (LH) waves from antenna a cold inhomogeneous plasma while keeping fast tool. In contrast previous code Slow Wave ANtenna (SWAN) (that only described interaction slow wave between waveguides and in 1D model), equations are now solved 2D including contribution both waves, with low computational cost. This approach is completed either by full-wave computation that takes into...
A comparison of the ASDEX Upgrade 3-strap ICRF antenna data with linear electromagnetic TOPICA calculations is presented.The substantiates a reduction local electric field at radially protruding plasma-facing elements as relevant approach for minimizing tungsten (W) sputtering in conditions when slow wave strongly evanescent.The measured reaction time-averaged RF current limiters to feeding variations less sensitive than predicted by calculations.This likely have been caused temporal and...
Abstract Over the last 30 years, harmonic radars have been effective only in tracking insects flying at low altitude and over flat terrain. We developed an innovative radar, implementing most advanced radar techniques, which covers a large field of view elevation (with angular aperture about 24°) can track up to range 500 m. show all components this new its first application, Vespa velutina (yellow-legged Asian hornet). This is invasive species which, although indigenous South-East Asia,...
Abstract The yellow‐legged A sian hornet is an invasive species of wasps, indigenous to the S outheast sia but recently spreading in outhern E urope. Because its exponential diffusion and serious threat local honeybee colonies (and humans as well), restraint measures are currently under investigation. We developed tested harmonic radar capable tracking flying trajectory these insects, once equipped with a small transponder, their natural environment. Several hornets were captured close...
During the 2011 experimental campaign, one of three ion cyclotron resonance heating (ICRH) antennas in Tore Supra tokamak was equipped with a new type Faraday screen (FS). The design aimed at minimizing integrated parallel electric field over long lines as well increasing heat exhaust capability actively cooled screen. It proved to be inefficient for attenuating radio-frequency (RF)-sheaths on itself contrary concept that allowed operation despite higher fluxes antenna. In parallel, approach...
This paper summarizes the operational experience of ion cyclotron resonant frequency (ICRF) ITER-like antenna on JET aiming at substantially increasing power density in range requirements for ITER combined with load resiliency. An in-depth description its commissioning, aspects and achieved performances is presented.
Recent achievements in studies of the effects ICRF (Ion Cyclotron Range Frequencies) power on SOL (Scrape-Off Layer) and PWI (Plasma Wall Interactions) ASDEX Upgrade (AUG), Alcator C-Mod, JET-ILW are reviewed. Capabilities to diagnose model effect DC biasing associated impurity production at active antennas magnetic field connections described. The experiments show that near-fields can lead not only E × B convection, but also modifications density, which for C-Mod limited a narrow region...
Abstract The yellow‐legged Asian hornet is an invasive species of wasps, indigenous the South‐East Asia but quickly spreading in Southern Europe. Because its exponential diffusion and serious threat to local honey bee colonies humans as well, restraint measures are under investigation. Among them, harmonic radar described (Ecology Evolution, 6, 2016 2170) already proved be a quite effective way follow hornets their nests; it fact capable tracking flying trajectory these insects, once...
In this paper we validate the finite element code RAPLICASOL, which models radiofrequency wave propagation in edge plasmas near ICRF antennas, against calculations with TOPICA code. We compare output of both codes for ASDEX Upgrade 2-strap antenna, and a 4-strap WEST-like antenna. Although RAPLICASOL requires considerably fewer computational resources than TOPICA, find that predicted quantities experimental interest (including reflection coefficients, coupling resistances, - -matrix entries,...
This paper describes recent upgrades of TOPICA (Torino Politecnico Ion Cyclotron Antennas) formulation and implementation. is a code capable handling both the actual geometry ion cyclotron (IC) antennas an accurate plasma description; it can predict performances IC launchers with unprecedented accuracy numerical efficiency, validated against data measured in operation conditions. In reported upgrade, new multi-cavity approach introduced, producing significant savings terms CPU memory...
A novel method to simulate ion cyclotron wave coupling in the edge of a tokamak plasma with finite element technique is presented. It applied commercial software COMSOL Multiphysics. Its main features include perfectly matched layer (PML) emulate radiating boundary conditions beyond critical cutoff for fast (FW), full-wave propagation across inhomogeneous cold peripheral and detailed description launcher geometry. The PML technique, while widely used numerical simulations propagation, has...
Three identical new WEST Ion Cyclotron Resonance Heating (ICRH) antennas have been designed, assembled then commissioned on plasma from 2013 to 2019.The ICRH system is both load-resilient and compatible with long-pulse operations.The three successfully operated together in 2019 2020.The load resilience capability has demonstrated the antenna feedback controls for phase matching developed.The breakdown detection systems validated protected antennas.The use of combination Lower Hybrid...
Abstract The experimental and theoretical analysis were focused on experiments conducted to assess the effect of plasma isotopes, protium (H), deuterium (D), tritium (T) ion cyclotron resonance heating (ICRH) related wall interactions. Comparison L-mode discharges with N = 1 3 He H minority ICRH scenarios done for different isotopes. For selected pulses, behaviour high-Z, mid-Z low-Z intrinsic impurity radiated power was investigated based data from VUV, visible spectroscopy, bolometry...
Harmonic radars can be generally used to track very small (1.5 cm) and lightweight (15 mg) passive tags; as an example, they have been adopted various insects for almost 30 years now. In most of the cases, their usage was motivated by entomological interest in better knowing habits observed insect; fewer applications, like ours, prevailed need protecting environment from invasive species. However, despite purpose research involving radars, not a lot engineering resources invested during last...
An innovative scanning harmonic radar has been recently developed for tracking insects in complex landscapes. This movable technology tested on an invasive hornet species (Vespa velutina) detecting the position of their nests environment, framework early detection strategy. The new model proved to be effective hornets either open landscapes, hilly environments and areas characterised by presence more obstacles, such as woodlands urban areas. Hornets were effectively tracked landscapes a mean...