Giuseppe Lerner
A5030687440- Particle physics theoretical and experimental studies
- Particle Detector Development and Performance
- High-Energy Particle Collisions Research
- Radiation Detection and Scintillator Technologies
- Nuclear Physics and Applications
- Nuclear reactor physics and engineering
- Computational Physics and Python Applications
- Radiation Therapy and Dosimetry
- Quantum Chromodynamics and Particle Interactions
- Radiation Effects in Electronics
- Nuclear physics research studies
- Atomic and Subatomic Physics Research
- Superconducting Materials and Applications
- Medical Imaging Techniques and Applications
- Muon and positron interactions and applications
- Dark Matter and Cosmic Phenomena
- Structural Analysis of Composite Materials
- Particle accelerators and beam dynamics
- Astrophysics and Cosmic Phenomena
- Particle Accelerators and Free-Electron Lasers
- Statistical Distribution Estimation and Applications
- Graphite, nuclear technology, radiation studies
- Astronomical and nuclear sciences
- Distributed and Parallel Computing Systems
- Astro and Planetary Science
European Organization for Nuclear Research
2020-2025
Instituto de Física Corpuscular
2023-2024
Universitat de València
2023-2024
Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas
2024
Cockcroft Institute
2024
University of Manchester
2024
University of Sussex
2016-2023
The University of Adelaide
2019
Istituto Nazionale di Fisica Nucleare, Sezione di Pavia
2019
Ludwig-Maximilians-Universität München
2018
FLUKA is a general purpose Monte Carlo code able to describe the transport and interaction of any particle nucleus type in complex geometries over an energy range extending from thermal neutrons ultrarelativistic hadron collisions. It has many different applications accelerator design, detector studies, dosimetry, radiation protection, medical physics, space research. In 2019, CERN INFN, as copyright holders, together decided end their formal collaboration framework, allowing them henceforth...
A new parasitic, mixed-field, neutron-dominated irradiation station has been recently commissioned at the European Laboratory for Particle Physics (CERN). The is installed in Neutron Time-Of-Flight (n\_TOF) facility, taking advantage of secondary radiation produced by neutron spallation target. allows damage studies to be performed conditions that are closer ones encountered during operation particle accelerators; tests carried out will complementary standard on materials, usually with gamma...
Abstract This article presents a few selected developments and future ideas related to the measurement of $$(n,\gamma )$$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mo>(</mml:mo> <mml:mi>n</mml:mi> <mml:mo>,</mml:mo> <mml:mi>γ</mml:mi> <mml:mo>)</mml:mo> </mml:mrow> </mml:math> data astrophysical interest at CERN n_TOF. The MC-aided analysis methodology for use low-efficiency radiation detectors in time-of-flight neutron-capture measurements is discussed, with...
The neutron time-of-flight facility n_TOF at CERN is a spallation source dedicated to measurements of neutron-induced reaction cross-sections interest in nuclear technologies, astrophysics, and other applications. Since 2014, Experimental ARea 2 (EAR2) operational delivers fluence ∼4⋅107 neutrons per nominal proton pulse, which ∼50 times higher than the one 1 (EAR1) ∼8⋅105 pulse. high flux EAR2 results counting rates detectors that challenged previously existing capture detection systems....
In addition to high-energy hadrons, which include neutrons, protons, and pions above 20 MeV, thermal neutrons (ThNs) are a major concern in terms of soft error rate (SER) for electronics operating the large hadron collider (LHC) accelerator at European Organization Nuclear Research (CERN).Most electronic devices still contain Boron-10 inside their structure, makes them sensitive ThNs.The LHC radiation environment different tunnel shielded areas is analyzed through measurements FLUKA...
One of the critical aspects for accurate determination neutron capture cross sections when combining time-of-flight and total energy detector techniques is characterization control systematic uncertainties associated to measuring devices. In this work we explore most conspicuous effects harsh count rate conditions: dead-time pile-up effects. Both effects, not properly treated, can lead large bias in sections. majority measurements carried out at CERN n_TOF facility, detectors choice are C6D6...
A benchmark between various radiation monitors employed at CERN for to electronics applications and their simulated values with the FLUKA Monte Carlo is performed CHARM mixed-field irradiation facility. Comparisons are made different operational conditions, using data recorded in 2015–2018 period.
The radiation showers generated by the interaction of high-energy electrons with matter include neutrons an energy distribution peaked at MeV scale, produced via photonuclear reactions, allowing measurements neutron-induced Single-Event Effects in electronic devices. In this work we study a setup where 200-MeV electron beam CLEAR accelerator CERN is directed on aluminum target to produce field large neutron component. resulting environment analyzed measuring Upset (SEU) and Latchup rates...
The Large Hadron Collider (LHC) at the European Organization for Nuclear Research (CERN) is largest accelerator in world, spanning a circumference of 26.7 km. During its operation, small fractions beams are being continuously lost. This leads to mixed-field radiation that might affect electronic equipment through both cumulative and single-event effects. article considers environment during Run 2 (years 2015-2018) LHC arc sectors constitute approximately 70% accelerator, housing huge amount...
We study the neutron field at NEAR station of time flight (n_TOF) facility CERN, through Monte Carlo simulations, well-characterized static random access memories (SRAMs) and radio-photo-luminescence (RPL) dosimeters, with aim providing neutrons for electronics irradiation. Particle fluxes typical quantities relevant testing were simulated several test positions compared to those CERN high energy accelerator mixed-field (CHARM), highlighting similitudes differences. The SRAM detectors, based...
The NEAR Station is a new experimental area developed at the n_TOF Facility CERN. activation station of underwent characterization beam following installation Spallation Target. commissioning neutron comprises set simulations made with FLUKA code and verification. determination spectrum was using techniques three separate set-ups. Two set-ups were based on Multi-foil Activation technique (MAM-1 MAM-2), third set-up relied process moderation single material (ANTILoPE). are presented. Also...
Abstract During the second long shutdown period of CERN accelerator complex (LS2, 2019-2021), several upgrade activities took place at n_TOF facility. The most important have been replacement spallation target with a next generation nitrogen-cooled lead target. Additionally, new experimental area, very short distance from assembly (the NEAR Station) was established. In this paper, core commissioning actions installations are described. improvement in infrastructure accompanied by detector...
The Upgrade II of the Large Hadron Collider beauty (LHCb) experiment is proposed to be installed during CERN Long Shutdown 4, aiming operate LHCb at <a:math xmlns:a="http://www.w3.org/1998/Math/MathML" display="inline"><a:mrow><a:mn>1.5</a:mn><a:mo>×</a:mo><a:msup><a:mrow><a:mn>10</a:mn></a:mrow><a:mrow><a:mn>34</a:mn></a:mrow></a:msup><a:mtext> </a:mtext><a:mtext> </a:mtext><a:msup><a:mrow><a:mi>cm</a:mi></a:mrow><a:mrow><a:mo>−</a:mo><a:mn>2</a:mn></a:mrow></a:msup><a:mtext>...
In the atmosphere, it is generally understood that neutrons are main contributor to soft error rate (SER) in electronic devices. These particles indeed able trigger nuclear reactions sensitive regions of devices, leading secondary ions may ionize matter sufficiently upset a memory cell or induce transient signal, known as errors. For reliability purposes, crucial be estimate SER associated with given technology, which typically characterized by its volume and threshold linear energy transfer...
Capture and total cross section measurements for 94,95,96 Mo have been performed at the neutron time-of-flight facilities, n_TOF CERN GELINA JRC-Geel. The were using isotopically enriched samples with an enrichment above 95% each of isotopes. capture C 6 D detectors a new sTED detector. transmission 10 m station Li glass Preliminary results these are presented.
The neutron time-of-flight facility n_TOF is characterised by its high instantaneous intensity, high-resolution and broad energy spectra, specially conceived for neutron-induced reaction cross section measurements. Two Time-Of-Flight (TOF) experimental areas are available at the facility: area 1 (EAR1), located end of 185 m horizontal flight path from spallation target, 2 (EAR2), placed 20 target in vertical direction. fluence EAR2 ˜ 300 times more intense than EAR1 relevant window. was...
We study the radiation environment near terahertz (THz) dump of CERN Linear Electron Accelerator for Research (CLEAR) electron accelerator at CERN, using FLUktuierende KAskade in German (FLUKA) simulations and single-event upset (SEU) measurements taken with 32-Mbit Integrated Silicon Solution Inc. (ISSI) static random access memories (SRAMs). The main focus is on characterization neutron field to evaluate its suitability tests electronics comparison other irradiation facilities. Neutrons...
One of the crucial ingredients for improvement stellar models is accurate knowledge neutron capture cross-sections different isotopes involved in s -, r - and i processes. These measurements can shed light on existing discrepancies between observed predicted isotopic abundances help to constrain physical conditions where these reactions take place along stages evolution. In particular case radioactive 94 Nb, Nb( n , γ ) cross-section could play a role determination -process production Mo AGB...
Neutron capture cross-section measurements are fundamental in the study of astrophysical phenomena, such as slow neutron (s-) process nucleosynthesis operating red-giant and massive stars. However, via time-of-flight (TOF) technique on key $s$-process nuclei often challenging. Difficulties arise from limited mass ($\sim$mg) available high sample-related background case unstable branching points. Measurements magic nuclei, that act bottlenecks, affected by low (n,$\gamma$) cross sections a...
The n_TOF facility hosts CERN’s pulsed neutron source, comprising two beam lines of different flight paths and one activation station. It is based on a proton delivered by the PS accelerator impinging lead spallation target. During Long Shutdown 2 (LS2) at CERN (2019-2021), major upgrade target was carried out in order to optimize performances beam. Therefore, characteristics experimental areas were investigated detail. In this work, focus second area (EAR2), located 20 m above Preliminary...
The n_TOF facility has just undergone in 2021 a major upgrade with the installation of its third generation spallation target that been designed to optimize performance two time-of-flight lines. This contribution describes key features and limitations for capture measurements beam lines prior presents first results (n,$\gamma$) carried out as part commissioning upgraded facility. In particular, energy resolution, factor both increasing signal-to-background ratio obtaining accurate resonance...
This paper investigates an application of the 1000µm-thick silicon solid-state detector for monitoring a mixed-field radiation environment, in particular accelerator environment. The calibrations against both alpha source and high-energy protons are presented. measurements benchmarked FLUKA Monte Carlo simulations. As might be deployed future RadMON version, simulated use case is presented, highlighting enhanced sensitivity (by 3-4 orders magnitude) with respect to SRAM-based solutions, High...