Search

Your search keyword '"Francesco Simeone"' showing total 5 results
Start Over Author "Francesco Simeone" Journal epj web of conferences
5 results on '"Francesco Simeone"'

1. Acoustic detection of UHE neutrinos in the Mediterranean sea: status and perspective

Author

A. Capone and Francesco Simeone

Subjects
Physics, 010308 nuclear & particles physics, Physics::Instrumentation and Detectors, Astrophysics::High Energy Astrophysical Phenomena, QC1-999, Cosmic background radiation, Astrophysics::Instrumentation and Methods for Astrophysics, Astronomy, Cosmic ray, Acoustic wave, Astrophysics, Solar neutrino problem, 01 natural sciences, Physics and Astronomy (all), Neutrino detector, 0103 physical sciences, High Energy Physics::Experiment, Neutrino, Neutrino astronomy, 010306 general physics, Cherenkov radiation
Abstract

In recent years the astro-particle community is involved in the realization of experimental apparatuses for the detection of high energy neutrinos originated in cosmic sources or produced in the interaction of Cosmic Rays with the Cosmic Microwave Background. For neutrino energies in the TeV-PeV range, optical Cherenkov detectors, that have been so far positively exploited by Baikal[1], IceCube[2] and ANTARES[3], are considered optimal. For higher energies, three different experimental techniques are under study: the detection of radio pulses produced by showers induced by a neutrino interaction, the detection of air showers initiated by neutrinos interacting with rocks or deep Earth’s atmosphere and the detection of acoustic waves produced by deposition of energy following the interaction of neutrinos in an acoustically transparent medium. The potential of the acoustic detection technique, first proposed by Askaryan[4], to build very large neutrino detectors is appealing, thanks to the optimal properties of media such as water or ice as sound propagator. Though the studies on this technique are still in an early stage, acoustic positioning systems used to locate the optical modules in underwater Cherenkov neutrino detectors, give the possibility to study the ambient noise and provide important information for the future analysis of acoustic data.

Published
2017

2. Measurement of the atmospheric muon flux at 3500 m depth with the NEMO Phase-2 detector

Author

V. Giordano, Mario Musumeci, N. Randazzo, G. Terreni, A. D'Amico, F. Di Capua, V. Flaminio, F. C. T. Barbato, P. Fermani, Vladimir Kulikovskiy, S.F. Biagi, G. C. Barbarino, A. Orselli, Valeria Sipala, L. Trasatti, P. Litrico, M. Calamai, M. Circella, G. Cacopardo, Carmelo Pellegrino, F. Garufi, A. Rovelli, Paolo Musico, Sebastiano Aiello, C. Perrina, M. Taiuti, R. Coniglione, Carlos Maximiliano Mollo, V. De Luca, C. D'Amato, G. De Rosa, A. Spitaleri, V. Sciacca, F. Speziale, C. Hugon, G. Grella, Maurizio Spurio, Fabio Longhitano, C. Pugliatti, Annarita Margiotta, Carlo Alessandro Nicolau, E. Barbarito, Fortunato Caruso, Sara Pulvirenti, Rosaria Grasso, A. Trovato, Alessia Capone, M. Mongelli, Giuseppina Larosa, Cristiano Bozza, Tommaso Chiarusi, B. Bouhadef, K. P. Leismueller, Luigi Antonio Fusco, Agnese Martini, Francesco Simeone, M. J. Costa, I. Sgura, A. Miraglia, Angelo Orlando, D. Lo Presti, Matteo Sanguineti, Rosanna Cocimano, C. Calì, N. Deniskina, M. Imbesi, G. De Bonis, G. Riccobene, Simona Maria Stellacci, M. Anghinolfi, Nicolo' Beverini, And D. Vivolo, C. Distefano, Cynthia Ventura, D. Lattuada, P. Migliozzi, Salvatore Viola, Enrico Maccioni, E. Migneco, M. Spina, A. Gmerk, R. Masullo, M. Morganti, A. Ceres, Giacomo Cuttone, F. Raffaelli, P. Piattelli, Riccardo Papaleo, Piero Vicini, Fabrizio Ameli, Alessandro Lonardo, Paolo Sapienza, M. G. Pellegriti, Emanuele Leonora, Piattelli, P., Distefano, C., Aiello, S., Ameli, F., Anghinolfi, M., Barbarino, G., Barbarito, E., Barbato, F., Beverini, N., Biagi, S., Bouhadef, B., Bozza, C., Cacopardo, G., Calamai, M., Calì, C., Capone, A., Caruso, F., Ceres, A., Chiarusi, T., Circella, M., Cocimano, R., Coniglione, R., Costa, M., Cuttone, G., D'Amato, C., D'Amico, A., Bonis, G. De, Luca, V. De, Deniskina, N., Rosa, G. De, Capua, F. Di, Fermani, P., Flaminio, V., Fusco, L.A., Garufi, F., Giordano, V., Gmerk, A., Grasso, R., Grella, G., Hugon, C., Imbesi, M., Kulikovskiy, V., Larosa, G., Lattuada, D., Leismueller, K.P., Leonora, E., Litrico, P., Lonardo, A., Longhitano, F., Presti, D. Lo, Maccioni, E., Margiotta, A., Martini, A., Masullo, R., Migliozzi, P., Migneco, E., Miraglia, A., Mollo, C.M., Mongelli, M., Morganti, M., Musico, P., Musumeci, M., Nicolau, C.A., Orlando, A., Papaleo, R., Pellegrino, C., Pellegriti, M.G., Perrina, C., Pugliatti, C., Pulvirenti, S., Orselli, A., Raffaelli, F., Randazzo, N., Riccobene, G., Rovelli, A., Sanguineti, M., Sapienza, P., Sciacca, V., Sgura, I., Simeone, F., Sipala, V., Speziale, F., Spina, M., Spitaleri, A., Spurio, M., Stellacci, S.M., Taiuti, M., Terreni, G., Trasatti, L., Trovato, A., Ventura, C., Vicini, P., Viola, S., Vivolo, And D., De Rosa, Gianfranca, Di Capua, F., Fusco, L. A., Leismueller, K. P., Mollo, C. M., Nicolau, C. A., Pellegriti, M. G., Stellacci, S. M., Distefano, C, Aiello, S, Ameli, F, Anghinolfi, M, Barbarino, G, Barbarito, E, Barbato, F, Beverini, N, Biagi, S, Bouhadef, B, Bozza, C, Cacopardo, G, Calamai, M, Cali, C, Capone, A, Caruso, F, Ceres, A, Chiarusi, T, Circella, M, Cocimano, R, Coniglione, R, Costa, M, Cuttone, G, D'Amato, C, D'Amico, A, De Bonis, G, De Luca, V, Deniskina, N, De Rosa, G, Di Capua, F, Fermani, P, Flaminio, V, Fusco, La, Garufi, F, Giordano, V, Gmerk, A, Grasso, R, Grella, G, Hugon, C, Imbesi, M, Kulikovskiy, V, Larosa, G, Lattuada, D, Leismueller, Kp, Leonora, E, Litrico, P, Lonardo, A, Longhitano, F, Lo Presti, D, Maccioni, E, Margiotta, A, Martini, A, Masullo, R, Migliozzi, P, Migneco, E, Miraglia, A, Mollo, Cm, Mongelli, M, Morganti, M, Musico, P, Musumeci, M, Nicolau, Ca, Orlando, A, Papaleo, R, Pellegrino, C, Pellegriti, Mg, Perrina, C, Piattelli, P, Pugliatti, C, Pulvirenti, S, Orselli, A, Raffaelli, F, Randazzo, N, Riccobene, G, Rovelli, A, Sanguineti, M, Sapienza, P, Sciacca, V, Sgura, I, Simeone, F, Sipala, V, Speziale, F, Spina, M, Spitaleri, A, Spurio, M, Stellacci, Sm, Taiuti, M, Terreni, G, Trasatti, L, Trovato, A, Ventura, C, Vicini, P, Viola, S, Vivolo, D, EDP Sciences, Cali, C., Bonis, G. D., Luca, V. D., Rosa, G. D., Capua, F. D., Presti, D. L., and Vivolo, D.

Subjects
Cherenkov underwater neutrino telescope, Physics, atmospheric muons, Muon, Meteorology, QC1-999, Monte Carlo method, Detector, Phase (waves), astrophysical neutrino sources, astrophysical neutrino sources, Cherenkov underwater neutrino telescope, atmospheric muons, Atmospheric sciences, Physics and Astronomy (all), Muon flux, Tower, Intensity (heat transfer)
Abstract

In March 2013, the Nemo Phase-2 tower was successfully deployed at 80 km off-shore Capo Passero (Italy) at 3500 m depth. The tower operated continuously until August 2014. We present the results of the atmospheric muon analysis from the data collected in 411 days of live time. The zenith-angle distribution of atmospheric muons was measured and results compared with Monte Carlo simulations. The associated depth intensity relation was then measured and compared with previous measurements and theoretical predictions.

Published
2016

3. Characterisation and testing of the KM3NeT acoustic positioning system

Author

M. Saldaña, Salvatore Viola, and Francesco Simeone

Subjects
Physics, Positioning system, 010308 nuclear & particles physics, business.industry, Acoustics, QC1-999, Electrical engineering, Astrophysics::Instrumentation and Methods for Astrophysics, 01 natural sciences, KM3NeT, 0103 physical sciences, Underwater, 010306 general physics, business, Cherenkov radiation
Abstract

In underwater neutrino telescopes, the search of point-like sources through the Cherenkov detection technique requires a precise knowledge of the positions of thousands of optical sensors, spread in a volume of a few cubic kilometres. In KM3NeT the optical sensors are hosted in 700 m high semi-rigid structures, called detection units, which move under the effects of underwater currents. These movements are continuously monitored through an underwater positioning system based on acoustic emitters and receivers. In this work, the tests performed on the key elements of the positioning system are presented.

Published
2016

4. The LED Beacon prototype system for the on-shore time calibration of the KM3NeT-IT Towers

Author

Carlo Alessandro Nicolau, Fabrizio Ameli, Francesco Simeone, and Giulia De Bonis

Subjects
Shore, Engineering, geography, geography.geographical_feature_category, business.industry, Physics, QC1-999, Detector, Real-time computing, Set (abstract data type), KM3NeT, Software deployment, Test set, Calibration, business, Tower, Simulation
Abstract

The first implementation of the KM3NeT-IT neutrino telescope consists in the installation of 24 Strings and 8 Towers. Focusing on the Towers, the idea behind this work is to exploit the LED sources mounted in the OMs to develop a complementary system, on shore and before the deployment, for the determination of time delays, aiming at the characterizations of the time response of the different elements of the detector. During the assembling of the first tower, a set of measurements has been carried out; the test set-up and the measurement procedure are described, together with preliminary results of the calibration system. Lesson learnt is quite encouraging: uncertainties of the order of 400 ps are reached with very few cautions taken during the short calibration session, and with large room for improvement, making this system feasible and effective for the KM3NeT-IT experiment.

Published
2016
Full Text
View/download PDF

5. NaNet3: The on-shore readout and slow-control board for the KM3NeT-Italia underwater neutrino telescope

Author

Carlo Alessandro Nicolau, Alessandro Lonardo, Pierluigi Paolucci, Laura Tosoratto, Michele Martinelli, Andrea Biagioni, Piero Vicini, F. Lo Cicero, Fabrizio Ameli, Elena Pastorelli, F. Simula, Luca Pontisso, Roberto Ammendola, Ottorino Frezza, and Francesco Simeone

Subjects
Engineering, 010308 nuclear & particles physics, business.industry, Physics, QC1-999, Interface (computing), Electrical engineering, Latency (audio), Change control board, 01 natural sciences, KM3NeT, Time-division multiplexing, 0103 physical sciences, Stratix, 010306 general physics, Field-programmable gate array, business, Throughput (business), Computer hardware
Abstract

The KM3NeT-Italia underwater neutrino detection unit, the tower, consists of 14 floors. Each floor supports 6 Optical Modules containing front-end electronics needed to digitize the PMT signal, format and transmit the data and 2 hydrophones that reconstruct in real-time the position of Optical Modules, for a maximum tower throughput of more than 600 MB/s. All floor data are collected by the Floor Control Module (FCM) board and transmitted by optical bidirectional virtual point-to-point connections to the on-shore laboratory, each FCM needing an on-shore counterpart as communication endpoint. In this contribution we present NaNet3 , an on-shore readout board based on Altera Stratix V GX FPGA able to manage multiple FCM data channels with a capability of 800 Mbps each. The design is a NaNet customization for the KM3NeT-Italia experiment, adding support in its I/O interface for a synchronous link protocol with deterministic latency at physical level and for a Time Division Multiplexing protocol at data level.

Published
2016
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results