A5003877348- Fusion materials and technologies
- Metal and Thin Film Mechanics
- Diamond and Carbon-based Materials Research
- Nuclear Materials and Properties
- Ion-surface interactions and analysis
- Laser-induced spectroscopy and plasma
- Aluminum Alloys Composites Properties
- Magnetic confinement fusion research
- Laser-Plasma Interactions and Diagnostics
- Laser-Ablation Synthesis of Nanoparticles
- Advanced materials and composites
- Advanced ceramic materials synthesis
- Semiconductor materials and devices
- High-Temperature Coating Behaviors
- Microstructure and mechanical properties
- Nuclear Physics and Applications
- Boron and Carbon Nanomaterials Research
- Graphene research and applications
- ZnO doping and properties
- Magnesium Alloys: Properties and Applications
- Catalytic Processes in Materials Science
- Copper-based nanomaterials and applications
- Cultural Heritage Materials Analysis
- X-ray Spectroscopy and Fluorescence Analysis
- Particle accelerators and beam dynamics
Politecnico di Milano
2016-2025
Institute for the Science and Technology of Plasmas
2020-2024
Institute of Plasma Physics
2012-2024
National Agency for New Technologies, Energy and Sustainable Economic Development
2012-2019
National Research Council
2016
Italian Institute of Technology
2008
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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...
We report on the development of foam-based double-layer targets (DLTs) for laser-driven ion acceleration. Foam layers with a density few mg cm−3 and controlled thickness in 8–36 μm range were grown μm-thick Al foils by pulsed laser deposition (PLD). The DLTs experimentally investigated varying pulse intensity, polarisation target properties. Comparing simple foils, we observed systematic enhancement maximum average energies number accelerated ions. Maximum up to 30 MeV protons 130 C6+ ions...
An experimental investigation of nanostructured, micrometer-thick, tungsten films deposited by pulsed laser deposition is presented. The are compact and pore-free, with crystal grain sizes ranging from 14 nm to less than 2 nm. It shown how, properly tailoring rate kinetic energy ablated species, it possible achieve a detailed separate control both film morphology structure. role the main process parameters, He background pressure, fluence, energy, elucidated. In contrast W produced other PVD...
The development of novel target concepts is crucial to make laser-driven acceleration ion beams suitable for applications. We tested double-layer targets formed an ultralow density nanostructured carbon layer ($\ensuremath{\sim}7\text{ }\text{ }{\mathrm{mg}/\mathrm{cm}}^{3}$, $8--12\text{ }\ensuremath{\mu}\mathrm{m}$--thick) deposited on a $\ensuremath{\mu}\mathrm{m}$--thick solid Al foil. A systematic increase in the total number accelerated ions (protons and ${\mathrm{C}}^{6+}$) as well...
Abstract The investigation of superintense laser-driven ion sources and their potential applications offers unique opportunities for multidisciplinary research. Plasma physics can be combined with materials nuclear science, radiation detection advanced laser technology, leading to novel research challenges great fundamental applicative interest. In this paper we present interesting comprehensive results on nanostructured low density (near-critical) foam targets TW PW-class lasers, obtained...
A laser-driven particle source is exploited for the elemental and stratigraphic characterization of a nonhomogeneous sample.
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....
This study is focused on the stability of weddellite, dihydrate phase calcium oxalate [CaC(2)O(4)·(2 + x)H(2)O], mainly detected in kidney stones and films found surfaces several ancient monuments. Its occurrence a critical issue since, at environmental conditions, weddellite unstable quickly changes into whewellite, monohydrate (CaC(2)O(4)·H(2)O). New single crystal X-ray diffraction experiments have been carried out, which confirm structural model previously published. Synthesised...
The experimental feasibility of the laser-driven ion acceleration concept with multi-layered, foam-based targets has been investigated. Targets required features have produced and characterized, exploiting potential pulsed laser deposition technique. In intensity range 1016–1017 W cm−2, they allow us to obtain maximum proton energies 2–3 times higher compared bare solid targets, able reach surpass MeV both low ultrahigh contrast pulses. results two-dimensional particle-in-cell simulations,...
In this paper, we report on two fast and non-destructive methods for nanostructured film density evaluation based a combination of energy dispersive x-ray spectroscopy areal measurement scanning electron microscopy (SEM) thickness evaluation. These techniques have been applied to films with ranging from the solid down few , different compositions morphologies. The high resolution an microprobe has exploited characterize non-uniform both at macroscopic scale microscopic scale.
The contamination of implant devices as a result biofilm formation through bacterial infection has instigated major research in this area, particularly to understand the mechanism cell/implant surface interactions and their preventions. In paper, we demonstrate controlled method nanostructured titanium oxide synthesis using supersonic cluster beam depositions. nanoscale characterization atomic force microscopy profilometer display regulated evolution nanomorphology physical properties. X-ray...
Metallic amorphous tungsten-oxygen and tungsten-oxide films, deposited by Pulsed Laser Deposition, are characterized. The correlation is investigated between morphology, composition, structure, measured various techniques, the mechanical properties, characterized Brillouin Spectroscopy substrate curvature method. stiffness of films correlated to oxygen content mass density. elastic moduli decrease as density decreases oxygen-tungsten ratio increases. A plateau region observed around...