A5082521399- Plasma Diagnostics and Applications
- Diamond and Carbon-based Materials Research
- Magnetic confinement fusion research
- Fusion materials and technologies
- Metal and Thin Film Mechanics
- Surface Modification and Superhydrophobicity
- Nuclear Materials and Properties
- Particle accelerators and beam dynamics
- Gas Sensing Nanomaterials and Sensors
- Catalytic Processes in Materials Science
- Boron and Carbon Nanomaterials Research
- Radiation Detection and Scintillator Technologies
- Plasma Applications and Diagnostics
- Nuclear Physics and Applications
- ZnO doping and properties
- Ion-surface interactions and analysis
- Advanced Surface Polishing Techniques
- Advanced materials and composites
- Thin-Film Transistor Technologies
- Dust and Plasma Wave Phenomena
- Ionosphere and magnetosphere dynamics
- Electronic and Structural Properties of Oxides
- Semiconductor materials and devices
- Luminescence Properties of Advanced Materials
- Glass properties and applications
National Research Council
2008-2025
Institute for the Science and Technology of Plasmas
2022-2025
Institute of Plasma Physics
2008-2018
National Agency for New Technologies, Energy and Sustainable Economic Development
2012
Fondazione Audiologica Varese
2011
Istituto di Matematica Applicata e Tecnologie Informatiche
2010
Istituto Nazionale di Fisica Nucleare, Sezione di Pavia
2002-2003
University of Pavia
2002-2003
The provision of a particle and power exhaust solution which is compatible with first-wall components edge-plasma conditions key area present-day fusion research mandatory for successful operation ITER DEMO. work package plasma-facing (WP PFC) within the European programme complements laboratory experiments, i.e. in linear plasma devices, electron ion beam loading facilities, studies performed toroidally confined magnetic such as JET, ASDEX Upgrade, WEST etc. connection both groups done via...
A capacitively coupled radio-frequency argon plasma, used for tungsten sputtering deposition, is characterized using Langmuir probe measurements. Druyvesteyn’s method to evaluate plasma parameters through the integral of Electron Energy Distribution Function (EEDF). In pressure range analyzed (0.6–10 Pa), obtained distributions are not Maxwellian, which suggests some depletion electrons with higher energies. The compared those derived from graphical method. electron temperature via always...
Abstract This work investigates the role of surface topography in sputtering process tungsten (W) exposed to helium plasma using GyM linear device. Surfaces with varying roughness, from sub-nanometer ≅1 μm, and different textures, including random-like regular configurations, were studied. The samples at energies 30 350 eV, fluence ≅4.3e24 He + m -2 temperatures well below bulk W fuzz formation threshold ≅700 °C. interpretation experimental results was supported by simulations ERO2.0 code....
Gamma-ray spectroscopy measurements at MHz counting rates have been carried out, for the first time, with a compact spectrometer based on LaBr3 scintillator and silicon photomultipliers. The instrument, which is also insensitive to magnetic fields, has developed in view of upgrade gamma-ray camera diagnostic α particle deuterium-tritium plasmas Joint European Torus. Spectra were measured up 2.9 projected energy resolution 3%-4% 3-5 MeV range, interest fast ion physics studies fusion plasmas....
GyM is a linear plasma device operating at Istituto per la Scienza e Tecnologia dei Plasmi, Consiglio Nazionale delle Ricerche, Milan, with the original aim of studying basic physics, such as turbulent processes. Since 2014, experimental program has been mainly focused on issue plasma-material interaction (PMI) for magnetic confinement nuclear fusion applications. consists stainless steel vacuum chamber (radius and length 0.125 m 2.11 m), pumping system, gas injection 10 field coils two...
Photoconductivity (PC), thermally stimulated conductivity (TSC), photoluminescence (PL), thermoluminescence (TL), and electron spin resonance (ESR) measurements have been made on single crystals of potassium tantalate over the temperature range 4.2–290 K. We revealed two sorts O− shallow hole centers which are responsible for regions PL PC enhancement: T<70 K 100–150 Both were identified by their ESR spectra. While at low temperatures a rather intrinsic origin, i.e., they do not...
Abstract Fluorocarbon films using a monomer, 1H, 2H‐perfluoro–1‐dodecene were deposited in continuous radio frequency (RF) glow discharge, the process was carried out parallel‐plate RF discharge onto stainless steel reactor order to produce coating with water‐and oil–repellent surface. Fourier‐Transform Infrared spectroscopy (FT‐IR) and X‐ray Photoelectron Spectroscopy (XPS) revealed that obtained contain mainly perfluoromethylene (CF 2 ) species. Film wettability tested water hydrocarbon...
The research of reliable substitutes 3He detectors is an important task for the affordability new neutron scattering instrumentation future spallation sources like European Spallation Source. GEM (Gas Electron Multiplier)-based represent a valid alternative since they can combine high-rate capability, coverage up to area and good intrinsic spatial resolution (for this detector class it be better than 0.5 mm). first diffraction measurements performed using borated are reported. has active...
Amorphous siliconlike thin films (Si:Ox:Cy:Hz), deposited by plasma-enhanced chemical-vapor deposition using hexamethyldisiloxane as monomer and Ar feed gas, have been investigated for their optical structural properties a function of the power, in range 100–400 W. The analyzed Fourier transform infrared spectroscopy (FTIRS), UV-VIS-NIR spectrophotometry, atomic force Microscopy (AFM). From analysis FTIR spectra it results that assume marked inorganic character power increases. Indeed, at...
The use of tin (Sn) as a liquid metal for plasma facing components has been recently proposed solution to the high heat load issue on divertor target plates in nuclear fusion reactors. Due its low vapor pressure, reactivity with hydrogen and good resilience neutron impact, is candidate component. However atomic number poses concerns about contamination. In this paper two fundamental aspects have investigated: deuterium retention erosion fluxes from Sn surface towards plasma. samples were...
It is shown that the measurements of density fluctuation spectra in dusty plasmas can constitute a basis for situ diagnostic invisible submicron dust. The self-consistent kinetic theory includes charging processes and natural fluctuations dust particles predicts modifications due to presence A laboratory experiment was carried out where produced gas phase diagnosed by surface analysis samples its influence on plasma spectra. Quantitative comparison latter with yields information density,...
Atmospheric pressure plasmas have achieved great scientific and technological advances for a wide range of applications including the field antimicrobial treatment. In this paper, home-made atmospheric plasma jet device was built effects air treatments on inactivation pure bacterial culture (Escherichia coli ATCC 8739) deposited onto surface agar plates were investigated. Plasmas generated using high voltage discharge 30, 60 90 s. The number viable microorganisms determined plate count...
Iron-tungsten (Fe-W) mixed films were exposed to the low flux deuterium plasma of GyM in order study behavior sputtering yield with ion fluence and temperature samples. From literature, it is known that an increase former lowers Fe-W layers' as a consequence preferential Fe leading enrichment W outermost layers. An opposite trend was instead found for latter probably due inter-diffusion (effective from 200 °C) resulting suppression enrichment. Moreover, 500 °C, also segregation surface...
Nitrogen used to reduce the power load onto divertor in tokamak fusion devices (JET, AUG) has drawback of ammonia formation. Non-negligible quantity tritiated could be a serious concern for ITER, since it cannot reduced through presently designed fuel cycle loop. In this paper we report study production ND3 as function electron temperature (Te) and neutral pressure N2/D2 plasma mixture linear machine GyM. The nitrogenized compounds were monitored by Optical Emission Spectroscopy (OES) Mass...