R. D’Alessandro
A5108010872- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Dark Matter and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Neutrino Physics Research
- Astrophysics and Cosmic Phenomena
- Computational Physics and Python Applications
- Radiation Detection and Scintillator Technologies
- Black Holes and Theoretical Physics
- Medical Imaging Techniques and Applications
- Radiation Effects in Electronics
- Particle Accelerators and Free-Electron Lasers
- Diamond and Carbon-based Materials Research
- Atomic and Subatomic Physics Research
- Muon and positron interactions and applications
- Radiation Therapy and Dosimetry
- CCD and CMOS Imaging Sensors
- Distributed and Parallel Computing Systems
- Nuclear Physics and Applications
- Superconducting Materials and Applications
- Nuclear reactor physics and engineering
- Gamma-ray bursts and supernovae
- Silicon and Solar Cell Technologies
Istituto Nazionale di Fisica Nucleare
2006-2025
Florence (Netherlands)
2009-2025
Istituto Nazionale di Fisica Nucleare, Sezione di Firenze
2016-2025
University of Florence
2016-2025
Institute of High Energy Physics
2015-2024
University of Antwerp
2024
A. Alikhanyan National Laboratory
2014-2024
New York University Florence
2023-2024
Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
1998-2023
Instituto de Óptica "Daza de Valdés"
2023
The Arcminute Microkelvin Imager is a pair of interferometer arrays operating with six frequency channels spanning 13.9-18.2 GHz, very high sensitivity to angular scales 30''-10'. telescope aimed principally at Sunyaev-Zel'dovich imaging clusters galaxies. We discuss the design and describe explain its electronic mechanical systems.
LHCf is an experiment dedicated to the measurement of neutral particles emitted in very forward region LHC collisions. The physics goal provide data for calibrating hadron interaction models that are used study Extremely High-Energy Cosmic-Rays. This possible since laboratory equivalent collision energy 1017 eV. Two detectors, consisting imaging calorimeters made tungsten plates, plastic scintillator and position sensitive sensors, installed at zero degree angle ±140 m from point (IP)....
Imaging methods based on the absorption or scattering of atmospheric muons, collectively named under neologism "muography", exploit abundant natural flux muons produced from cosmic-ray interactions in atmosphere. Recent years have seen a steep rise development muography variety innovative multidisciplinary approaches to study interior man-made structures, establishing synergies between usually disconnected academic disciplines such as particle physics, geology, and archaeology. Muography...
The differential cross sections for inclusive neutral pions as a function of transverse and longitudinal momentum in the very forward rapidity region have been measured at Large Hadron Collider (LHC) with detector (LHCf) proton-proton collisions $\sqrt{s}=$ 2.76 7 TeV proton-lead nucleon-nucleon center-of-mass energies $\sqrt{s_\text{NN}}=$ 5.02 TeV. Such are compatible hypotheses limiting fragmentation Feynman scaling. Comparing collisions, we find sizable suppression production after...
Abstract We present an innovative charge detector with high resolution and wide dynamic range designed to fulfill the requirements of a monitoring system for energy ion beam. The prototype, constructed using Si photodiodes custom readout electronics, underwent extensive testing during HERD AMS beam tests at CERN SPS facilities. Initial showcased detector's exceptional performance, emphasizing both capable measuring nuclei atomic numbers ranging from 1 80. prototype's compatibility fast,...
In early 2010, the Large Hadron Collider forward (LHCf) experiment measured very neutral particle spectra in LHC proton–proton collisions. From a limited data set taken under best beam conditions (low beam-gas background and low occurrence of pile-up events), single photon at s=7 TeV pseudo-rapidity (η) ranges from 8.81 to 8.99 10.94 infinity were obtained for first time are reported this Letter. The two independent LHCf detectors consistent with one another serve as cross check data. also...
Abstract The muographic imaging of volcanoes relies on the measured transmittance atmospheric muon flux through target. An important bias affecting result comes from background contamination mimicking a higher transmittance. MU‐RAY and TOMUVOL collaborations independently in 2013 transmitted Puy de Dôme volcano using their early prototype detectors, based plastic scintillators Glass Resistive Plate Chambers, respectively. These detectors had three (MU‐RAY) or four (TOMUVOL) detection layers...
The High Energy cosmic-Radiation Detection (HERD) facility is one of several space astronomy payloads the cosmic lighthouse program onboard China's Space Station, which planned for operation starting around 2020 about 10 years. main scientific objectives HERD are indirect dark matter search, precise ray spectrum and composition measurements up to knee energy, high energy gamma-ray monitoring survey. composed a 3-D cubic calorimeter (CALO) surrounded by microstrip silicon trackers (STKs) from...
Muography (or muon radiography) is a technique that exploits the penetration capability of muons, elementary particles similar to electrons but with mass about 200 times larger. High energy muons are naturally produced in interactions cosmic rays Earth atmosphere. The measurement their absorption matter allows imaging inner structure large bodies. technological developments detection have opened way its application various fields, such as archaeology, studies geological structures, civil...
Muon Radiography allows to map the density of a volcanic cone. It is based on measurement attenuation flux muons present in cosmic radiation ground. The MU-RAY project has developed an innovative detector designed for muon radiography. main features are low electric power consumption, robustness and transportability, good spatial resolution time flight measurement. A 1 m2 prototype been constructed. collected data at Mt. Vesuvius approximately month spring 2013. second campaign performed Puy...
The Large Hadron Collider forward (LHCf) experiment is designed to use the LHC verify hadronic-interaction models used in cosmic-ray physics. Forward baryon production one of crucial points understand development showers. We report neutron-energy spectra for s=7 TeV proton–proton collisions with pseudo-rapidity η ranging from 8.81 8.99, 8.99 9.22, and 10.76 infinity. measured energy obtained two independent calorimeters Arm1 Arm2 show same characteristic feature before unfolding detector...
Transmission muography is an imaging technique that allows us to obtain two-dimensional and three-dimensional average-target density images by measuring the transmission of atmospheric muons. Through this technique, it possible observe anomalies inside a target volume locate them three-dimensionally. In work, potential will be illustrated through description results two measurements carried out in tourist path Temperino mine (Livorno, Italy) area where higher concentration Radon gas...
Abstract The measurement of cosmic rays at energies exceeding 100 TeV per nucleon is crucial for enhancing the understanding high-energy particle propagation and acceleration models in Galaxy. HERD a space-borne calorimetric experiment that aims to extend current direct measurements unexplored energies, such as protons one PeV. payload scheduled be installed on Chinese Space Station 2027. primary peculiarity instrument its capability measure particles coming from all directions, with main...
The inclusive production rate of neutral pions in the rapidity range greater than y=8.9 has been measured by Large Hadron Collider forward (LHCf) experiment during s=7 TeV proton-proton collision operation early 2010. This paper presents transverse momentum spectra pions. from two independent LHCf detectors are consistent with each other and serve as a cross-check data. also compared predictions several hadronic interaction models that often used for high-energy particle physics modeling...
Beam test results of the radiation tolerance study chemical vapour deposition (CVD) diamond against different particle species and energies is presented. We also present beam on independence signal size incident rate in charged detectors based un-irradiated irradiated poly-crystalline CVD over a range fluxes from 2 kHz/cm2 to 10 MHz/cm2. The pulse height sensors was measured with readout electronics peaking time 6 ns. In addition functionality 3D devices demonstrated tests are shown be...
The Muon Imaging for Mining and Archaeology (MIMA) project aims at the development of a non-invasive technique imaging dense structures or cavities, hidden in underground anyway surrounded by huge volumes matter, based on Absorption Radiography. Given its natural multidisciplinary, final purpose is validation this methodology applications different fields, like Archaeology, Geology, mining, Civil Engineering Protection, close cooperation with team these fields. In paper we report design,...
Abstract Transmission-based muography (TM) is an innovative imaging technique based on the measurement and analysis of cosmic ray muons flux attenuation within target under investigation. This allows inner-body density differences has successfully been applied in a wide range research fields: geology, archaeology, engineering geology civil engineering. The aim this study to show reliability TM as innovative, noninvasive geophysical method for ore body prospecting other mining related...