A5065850586- Magnetic confinement fusion research
- Nuclear Physics and Applications
- Superconducting Materials and Applications
- Fusion materials and technologies
- Particle accelerators and beam dynamics
- Advanced Vision and Imaging
- Nuclear reactor physics and engineering
- Optical measurement and interference techniques
- Advanced Image Processing Techniques
- Laser-Plasma Interactions and Diagnostics
- Image and Signal Denoising Methods
- Matrix Theory and Algorithms
- Cellular Automata and Applications
- Advanced Wireless Communication Techniques
- Numerical Methods and Algorithms
- Visual perception and processing mechanisms
- Advancements in PLL and VCO Technologies
- Adaptive optics and wavefront sensing
- Particle Detector Development and Performance
- Advanced Research in Systems and Signal Processing
- Plasma Diagnostics and Applications
- Statistical and numerical algorithms
- Medieval Architecture and Archaeology
- Optical Systems and Laser Technology
- Radiation Detection and Scintillator Technologies
University of Rome Tor Vergata
2024
National Agency for New Technologies, Energy and Sustainable Economic Development
2013-2024
Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati
2017
University of Padua
1976-2003
Abstract The paper presents an overview of the design status Radial Neutron Camera (RNC), that, together with Vertical Camera, will provide, through reconstruction techniques applied to measured line-integrated neutron fluxes, time resolved measurement ITER and α-source profile (i.e. emissivity, neutrons emitted per unit volume). RNC is composed two subsystems, In-Port Ex-Port located, respectively, inside outside Plug Equatorial Port #01. subsystem in a more advanced stage since it has...
Codes whose spectral density and its lower order derivatives vanish at zero frequency are investigated, necessary sufficient conditions for the properties given. In particular, most common balanced alphabets, a complete characterization is furnished class of symbol-by-symbol codes with vanishing spectrum second derivative. The fundamental results extended to block codes, suitable criteria their design Specific examples binary ternary presented; performance in terms low power content...
RAMI (Reliability, Availability, Maintainability and Inspectability) assessments are mandatory part of the design process for all ITER systems to anticipate possible risks in terms reliability availability support growth program. A assessment performed on Radial Neutron Camera (RNC) diagnostic system is presented. The aimed at evaluating RNC capability provide neutron emissivity radial profile measurement with required availability. composed by two collimating structures equipped flux...
This article presents an original algorithm operating in the frequency domain for estimating affine transformation between a pair of images. The matrix is estimated by relationships companion stretched slices Fourier transforms magnitudes two translational vector phase-correlation after compensating contribution matrix. approach "global" sense that it uses whole images information and does not rest upon features extraction matching. It can be efficiently implemented via FFT suited to...
This work presents an original method for estimating planar rotations. The proposed technique operates in the frequency domain through Fourier transform: hence, it uses all information of images and can be efficiently implemented via FFT. estimation rotations lends itself to treated polar coordinates; however, Cartesian coordinates transformation turns out a delicate heavy computational task. bypasses this problem by working directly exploiting hermitian properties transform. Experimental...
A method is proposed for launching and extracting the timing wave in a PAM digital transmission system, which combines simplicity of linear self-timing, economy bandwidth nonlinear high performance added approach. The requires that signal cyclostationary with period an even multiple symbol <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">T</tex> ; simplest solution deriving such from stationary message to apply it periodically time-varying as...
This work presents an original approach for estimating planar rotations between image pairs which resorts to the Fourier transform, in order avoid use of features, and radial projections, reduce 2-D estimation problem into a 1-D problem. Our procedure is coarse-to-fine type consists two passes. A first rough estimate rotational angle computed by means phase correlation algorithm applied projections transforms magnitudes images. then refined computing, at higher resolution, angular shift...
In ENEA Frascati research centre an experimental fusion machine called Tokamak Upgrade (FTU) is in operation since 1990. During the activity, automatic control and synchronization of many plants are required. The FTU system [1] includes sub-systems having different roles [2, 3]. particular, a Fast Sequence Control (FSC) hardware necessary to drive tokamak power detect errors fast sequence during plasma discharge. FSC was designed realized 1980s still operation. Due obsolescence some...
Applies frequency domain motion analysis to the explanation of visual artifacts and aliasing video signals. The authors review some fundamental notions motion. effects velocity acceleration with respect introduction are considered. loss signal information produced by is examined.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
The paper describes the key concepts of In Vessel Viewing System probe in phase design refinement ENEA Frascati laboratories and presents an integrated survey both on activities numerous test that have been performed to characterize system verify compliance its elements with ITER environmental conditions.
Measurements of total radiated power are very important in tokamak plasmas, especially the divertor region where they required for heat flux active control. Bolometric detectors based on metal foils used as sensors. The signal readout is provided by an electronic system which drives processes and acquires signals from resistive bridge-based bolometer. A project a new being carried at ENEA Frascati Laboratories, aimed to develop architecture sufficiently flexible order be applied large fusion...
A method for designing a finite automaton with an output that exhibits given rational power spectral density belonging to particular class is presented. The exploits the properties of circulant matrices, which allow one build stochastic matrix set assigned eigenvalues.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">></ETX>
We present the frequency domain analysis of most general model planar rigid motion, i.e., motion under joint effects translations and rotations with polynomial-type time dependence. show that in contribution object's shape texture is separate from parameters this framework. Special attention devoted to case constant velocity acceleration, which are likely candidates for modeling practical contexts. This work also focuses on distinction between those duration, a necessary clear assessment...
In ENEA Frascati research centre an experimental fusion machine called Tokamak Upgrade (FTU) is in operation since 1990. The plasma discharge phase of FTU driven by the dedicated system FSC-U (Fast Sequence Control upgraded), which has been developed order to send all necessary commands power plants, feeding toroidal and poloidal coils during discharge, meanwhile controlling correct outcome recording events with time resolution 20 microseconds. case incorrect execution sequence able safely...