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Start Over Author "Torrisi, L" Journal journal of instrumentation
30 results on '"Torrisi, L"'

26. A new Thomson Spectrometer for high energy laser-driven beams diagnostic

Author

Cirrone, G A P, primary, Tramontana, A, additional, Candiano, G, additional, Carpinelli, M, additional, Cavallaro, S, additional, Cutroneo, M, additional, Cuttone, G, additional, Martinis, C De, additional, Giove, D, additional, Krása, J, additional, Korn, G, additional, Maggiore, M, additional, Margarone, D, additional, Pisciotta, P, additional, Prokůpek, J, additional, Romano, F, additional, Schillaci, F, additional, Scuderi, V, additional, Torrisi, L, additional, and Velyhan, A, additional

Published
2014
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27. Medical research and multidisciplinary applications with laser-accelerated beams: the ELIMED netwotk at ELI-Beamlines

Author

Tramontana, A, primary, Anzalone, A, additional, Candiano, G, additional, Carpinelli, M, additional, Cirrone, G A P, additional, Cuttone, G, additional, Korn, G, additional, Licciardello, T, additional, Maggiore, M, additional, Manti, L, additional, Margarone, D, additional, Musumarra, A, additional, Perozziello, F, additional, Pisciotta, P, additional, Raffaele, L, additional, Romano, F, additional, Romano, F P, additional, Stancampiano, C, additional, Schillaci, F, additional, Scuderi, V, additional, Torrisi, L, additional, and Tudisco, S, additional

Published
2014
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28. SiC, Si and diamond detectors for comparison of laser-generated plasma in TNSA regime

Author

Marcin Rosinski, A. Zaras-Szydlowska, Lorenzo Torrisi, Alfio Torrisi, Torrisi, L., Rosinski, M., Zaras-Szydlowska, A., and Torrisi, A.

Subjects
Materials science, business.industry, Nuclear instruments and methods for hot plasma diagnostic, Plasma, Laser, law.invention, Nuclear instruments and methods for hot plasma diagnostics, Plasma diagnostics - charged-particle spectroscopy, Plasma generation (laser-produced, RF, x ray-produced), law, Optoelectronics, business, Instrumentation, Mathematical Physics, Diamond detector
Abstract

Monocrystalline SiC, Si and Diamond detectors have been used to monitor the radiations emitted from TNSA laser-generated plasma using a high-intensity fs laser. The comparison of their spectra was performed monitoring in time-of-flight the forward emitted TNSA plasma radiation. Carbon, aluminum, copper and gold targets were irradiated with an intensity of the order of 1019 W/cm2. SiC detector, with 80 microns depth active region, gave the best response to detect fast UV and X-rays, relativistic and cold electrons, and energetic protons and light accelerated ions. The experiments demonstrate the advantages to use semiconductor detectors to characterize the plasma enhancing the importance of the thickness of the target with respect to its electronic density.

Published
2021

29. Target normal sheath ion acceleration by fs laser irradiating metal/reduced graphene oxide targets

Author

Alfio Torrisi, J. Badziak, P. Parys, M. Cutroneo, Marcin Rosinski, A. Zaras-Szydlowska, Lorenzo Torrisi, Torrisi, L., Rosinski, M., Cutroneo, M., Torrisi, A., Badziak, J., Zaras-Szydlowska, A., and Parys, P.

Subjects
Materials science, Graphene, business.industry, Oxide, x ray-produced), Ion acceleration, Laser, Plasma diagnostics - charged-particle spectroscopy, Plasma diagnostics-probes, Plasma generation (laser-produced, RF, law.invention, Metal, chemistry.chemical_compound, chemistry, law, visual_art, visual_art.visual_art_medium, Optoelectronics, business, Instrumentation, Plasma diagnostics-probe, Mathematical Physics
Abstract

Target normal sheath ion acceleration is applied with a high contrast fs laser irradiating advanced targets based on thin metallic films (Al, Cu, Ag and Au) covering micrometric foils of reduced graphene oxide (rGO). The laser intensity is of about 1018 W/cm2 and the laser focal position with respect to the target surface is optimized to have the maximum proton acceleration. Plasma diagnostics are investigated using time-of-flight technique employing SiC detectors, ion collectors, and gaf-chromic films. Micrometric aluminum absorbers were employed to separate the faster proton detection by other accelerated ions. At the optimized laser focal position, the maximum proton acceleration of 2.5 MeV and 3.0 MeV energy was obtained using Ag(200 nm) and Au(200 nm) covering rGO(7 μm) targets, respectively. The high proton energy is due to the high electrical and thermal conductivity and high mechanical resistance of the used rGO foils and to the high plasma electron density of the target.

Published
2020

30. Hybrid graphene-based material promising target in laser matter interaction

Author

J. Badziak, Alfio Torrisi, M. Fazio, Marcin Rosinski, Lorenzo Torrisi, Roman Böttger, Shavkat Akhmadaliev, M. Cutroneo, Zdeněk Sofer, Cutroneo, M., Torrisi, L., Badziak, J., Rosinski, M., Torrisi, A., Fazio, M., Sofer, Z., Bottger, R., and Akhmadaliev, S.

Subjects
Materials science, Physics::Instrumentation and Detectors, Graphene, Lasers, Data analysis, Physics::Optics, Nanotechnology, Data analysi, Laser, law.invention, Physics::Plasma Physics, law, Physics::Accelerator Physics, Instrumentation, Mathematical Physics
Abstract

Graphene oxide foils implanted with copper ions at low energy and high dose, have been proposed as hybrid graphene-based materials suitable to be laser irradiated in vacuum to produce hot plasmas. The special lattice structure of the graphene oxide foil can improve the propagation of the laser accelerated electrons inside the foil and to enhance the electron density emerging from the rear foil surface. In such conditions the electric field developed in the non-equilibrium plasma increases and consequently in the forward ion acceleration. The foils have been optimized in thickness and they were irradiated with optimized laser parameters in order to produce high energy and quasi-monoenergetic proton beams by the femtosecond laser at the Institute of Plasma Physics and Laser Microfusion in Warsaw, Poland. Gaf chromic film and silicon carbide detectors were used to monitor the plasma properties and to measure the velocity of the emitted protons and carbon ions from plasma.

Published
2020

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