Alessandro Giassi
A5100705599- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Computational Physics and Python Applications
- Dark Matter and Cosmic Phenomena
- Cosmology and Gravitation Theories
- Neutrino Physics Research
- Medical Imaging Techniques and Applications
- Astrophysics and Cosmic Phenomena
- Pulsars and Gravitational Waves Research
- Geophysics and Sensor Technology
- Particle Accelerators and Free-Electron Lasers
- Distributed and Parallel Computing Systems
- Black Holes and Theoretical Physics
- Radiation Detection and Scintillator Technologies
- Product Development and Customization
- Gamma-ray bursts and supernovae
- Manufacturing Process and Optimization
- Advanced Multi-Objective Optimization Algorithms
- CCD and CMOS Imaging Sensors
- Radio Astronomy Observations and Technology
- Astronomical Observations and Instrumentation
- International Science and Diplomacy
- Advanced Frequency and Time Standards
Scuola Normale Superiore
1996-2025
University of Pisa
1999-2025
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
2016-2025
University of Siena
2023-2025
European Organization for Nuclear Research
2014
Sirehna
2003-2004
École Centrale de Nantes
2004
Istituto Nazionale di Fisica Nucleare
1995
The Virgo gravitational wave detector is an interferometer with 3 km long arms in construction near Pisa to be commissioned the year 2000. has been designed achieve a strain sensitivity of few times at 200 Hz. A large effort gone into conception mirror suspension system, which expected reduce noise level 10 signals and main sources are briefly discussed; choices made illustrated together present status experiment.
A wideband (dc to 500 Hz) low noise accelerometer has been developed. It makes use of a suspended mass whose displacement relative the supporting structure is sensed by linear variable differential transformer. works both in horizontal and vertical direction. The electronics connected mechanical through 12 m long cables. spectral sensitivity 7×10−10 (m/s2)/√Hz below 6 Hz. will be used perform an inertial damping resonances suspension mirrors VIRGO, interferometric antenna for gravitational...
The CMS silicon strip tracker, providing a sensitive area of approximately 200 m2 and comprising 10 million readout channels, has recently been completed at the tracker integration facility CERN. community is currently working to develop integrate online offline software frameworks, known as XDAQ CMSSW respectively, for purposes data acquisition detector commissioning monitoring. Recent developments have seen many new services tools within system, such event building, distributed analysis,...
In the context of concurrent engineering, this paper presents a quite innovative approach to collaborative optimization process, which couples multi-objective genetic algorithm with an asynchronous communication tool. This method allows and multi-sites design be performed without requiring significant investments or changes in company organization. To illustrate methodology, collaboration three European companies on ship hull is described. The shape automatically optimised distributing...
The data acquisition system for the CMS Silicon Strip Tracker (SST) is based around a custom analogue front-end ASIC, an optical link and off-detector VME board that performs digitization, zero-suppression formatting. A complex procedure required to optimally configure, calibrate synchronize 10 channels of SST readout system. We present overview this procedure, which will be used commission during integration, Start-Up operational phases experiment. Recent experiences from Magnet Test Cosmic...
A complete prototype of the CMS tracker read-out and control system has been built using components as close possible to final design. It is based on an amplifier analogue pipeline memory chip (APV), optical links transmitting at 40Ms/s a VME mounted digitisation data handling board (FED-PMC), supplemented by architecture FECs which set monitor entire system. This successfully operated for first time under LHC like beam conditions in 25ns structured provided SPS CERN. The objective was...
Le travail présenté dans cet article a pour objectif la création d'une procédure d'optimisation à distance appliquée conception de navires. La démarche doit prendre en compte les contraintes industrielles actuelles liées au déploiement l'ingénierie concourante. Cette optimisation être réalisée le cadre collaborative et multi-sites, plus elle opérationnelle sans demander des changements importants l'organisation l'entreprise. Elle coûts calcul expertises nécessaires l'évaluation critères...
In the context of concurrent engineering, this paper presents a quite innovative approach to collaborative optimisation process, which couples multi-objective genetic algorithm with an asynchronous communication tool. To illustrate methodology, three European companies’ collaboration on ship hull is described. Our study demonstrates that when carried out in distributed manner it can provide powerful tool for product design.
The CMS Silicon Strip Tracker at the LHC comprises a sensitive area of approximately 200 m2 and 10 million readout channels. Its data acquisition system is based around custom analogue front-end chip. Both control electronics are performed by off-detector VME boards in counting room, which digitise raw event perform zero-suppression formatting. uses online software framework to configure, monitor hardware components steer acquisition. first analysis within official reconstruction framework,...
The CMS Silicon Tracker comprises a complicated set of hardware and software components that have been thoroughly tested at CERN before final integration the Tracker. A vertical slice full readout chain has operated under near-final conditions. In absence tracker front-end modules, simulated events created within FED (Front End Driver) used to test reliability efficiency DAQ (Data Acquisition). data are sent over S-Link 64 bit links FRL (Fast Readout Link) modules rates in excess 200...
This paper investigates the performance of silicon microstrip detectors after heavy irradiation. Full-size prototype sensors (53 /spl times/ 64 mm/sup 2/) designed for CMS Tracker have been irradiated with protons and extensively studied in laboratory using a beam minimum ionising particles operated at low temperature as foreseen Large Hadron Collider. We present results large statistics measurements collected charge, noise, position resolution, hit finding efficiency these detectors.