A5067948581- Particle physics theoretical and experimental studies
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Particle Detector Development and Performance
- Advanced Data Storage Technologies
- Distributed and Parallel Computing Systems
- Nuclear reactor physics and engineering
- Dark Matter and Cosmic Phenomena
- Computational Geometry and Mesh Generation
- Electromagnetic Scattering and Analysis
- Nuclear physics research studies
- Synthetic Aperture Radar (SAR) Applications and Techniques
- Scientific Computing and Data Management
- Data Quality and Management
- Pulsars and Gravitational Waves Research
- Research Data Management Practices
- Geophysical Methods and Applications
- Radar Systems and Signal Processing
- Microwave Imaging and Scattering Analysis
- 3D Shape Modeling and Analysis
- Cosmology and Gravitation Theories
- Digital Image Processing Techniques
- Particle Accelerators and Free-Electron Lasers
- Statistical Methods and Bayesian Inference
- Algorithms and Data Compression
European Organization for Nuclear Research
2014-2025
GSI Helmholtz Centre for Heavy Ion Research
2022-2024
A. Alikhanyan National Laboratory
2015-2024
Airbus (Germany)
2016
Gangneung–Wonju National University
2012
Université Clermont Auvergne
2012
Clermont Université
2012
Laboratoire de Physique Corpusculaire
2012
Centre National de la Recherche Scientifique
2012
University of Helsinki
2007
In this paper we describe the design, construction, commissioning and operation of Data Acquisition (DAQ) Experiment Control Systems (ECS) ALICE experiment at CERN Large Hadron Collider (LHC). The DAQ ECS are systems used respectively for acquisition all physics data overall control experiment. They two computing made hundreds PCs storage units interconnected via networks. collection experimental from detectors is performed by several high-speed optical links. We in detail design...
ALICE (A Large Ion Collider Experiment) has undertaken a major upgrade during the LHC Long Shutdown 2. The increase in detector data rates led to hundredfold input raw data, up 3.5 TB/s. To cope with it, new common Online and Offline computing system, called O 2 , been developed put production. /FLP (First Level Processor) successor of DAQ implements critical functions readout, quality control operational services running CR1 centre at experimental site. Data from 15 subdetectors are read...
COMPASS is a fixed target experiment at CERN's SPS. In 2002, first physics run was completed with 260 TB of data recorded, corresponding to 5 billion events. The acquisition architecture based on custom frontends, buffers PCI cards, and server PCs networked via Gigabit Ethernet. A timing trigger distribution system provides unique event identification time synchronization. Results the performance an outlook improvements using online filtering will be given.
ALICE (A Large Ion Collider Experiment) is the detector system at LHC (Large Hadron Collider) that studies behaviour of strongly interacting matter and quark gluon plasma. The information sent by sub-detectors composing are read out DATE (Data Acquisition Test Environment), data acquisition software, using hundreds multi-mode optical links called DDL (Detector Data Link). To cope with higher luminosity LHC, bandwidth will be upgraded in 2015. This paper describe evolution protocol from 2 to 6 Gbit/s.
ALICE (A Large Ion Collider Experiment) is a heavy-ion detector studying the physics of strongly interacting matter and quark-gluon plasma at CERN LHC (Large Hadron Collider). The Data-AcQuisition (DAQ) system handles data flow from sub-detector electronics to permanent storage in computing center. DAQ farm consists about 1000 devices many different types ranging direct accessible machines arrays custom optical links. performance monitoring tool used during run 1 will be replaced by new for...
All major experiments need tools that provide a way to keep record of the events and activities, both during commissioning operations. In ALICE (A Large Ion Collider Experiment) at CERN, this task is performed by Alice Electronic Logbook (eLogbook), custom-made application developed maintained Data-Acquisition group (DAQ). Started as statistics repository, eLogbook has evolved become not only fully functional electronic logbook, but also massive information repository used store conditions...
ALICE (A Large Ion Collider Experiment) is a detector dedicated to the studies with heavy ion collisions exploring physics of strongly interacting nuclear matter and quark-gluon plasma at CERN LHC (Large Hadron Collider). After second long shutdown LHC, Experiment will be upgraded make high precision measurements rare probes low pT, which cannot selected trigger, therefore require very large sample events recorded on tape. The online computing system completely redesigned address major...
ALICE is one of the four experiments installed at CERN Large Hadron Collider (LHC), especially designed for study heavy-ion collisions. The online Data Quality Monitoring (DQM) an important part data acquisition (DAQ) software. It involves gathering, analysis by user-defined algorithms and visualization monitored data. This paper presents final design, as well latest coming features, ALICE's specific DQM software called AMORE (Automatic MonitoRing Environment). describes challenges we faced...
Let C ( G ) denote the number of simple cycles a graph and let n be maximum over all planar graphs with nodes. We present lower bound on ), constructing at least 2.28 cycles. Applying some probabilistic arguments we prove an upper 3.37 . also discuss this question restricted to subclasses grid graphs, bipartite 3-colourable triangulated graphs.
ALICE (A Large Ion Collider Experiment) is the heavy-ion detector designed to study physics of strongly interacting matter and quark-gluon plasma at CERN Hadron (LHC). Some specific calibration tasks are performed regularly for each 18 sub-detectors in order achieve most accurate measurements. These procedures involve events analysis a wide range experimental conditions, implicating various trigger types, data throughputs, electronics settings, algorithms, both during short sub-detector...
The ALICE (A Large Ion Collider Experiment) Data Acquisition (DAQ) system has the unprecedented requirement to ensure a very high volume, sustained data stream between Detector and Permanent Storage (PDS) which is used as main repository for Event processing Offline Computing. key component accomplish this task Transient System (TDS), set of storage elements with its associated hardware software components, supports raw collection, conversion into format suitable subsequent high-level...
ALICE is one of the four experiments installed at CERN Large Hadron Collider (LHC), especially designed for study heavy-ion collisions. The online Data Quality Monitoring (DQM) an important part data acquisition (DAQ) software. It involves gathering, analysis by user-defined algorithms and visualization monitored data. This paper presents final design, as well latest coming features, ALICE's specific DQM software called AMORE (Automatic MonitoRing Environment). describes challenges we faced...
All major experiments need tools that provide a way to keep record of the events and activities, during both commissioning operations. In ALICE (A Large Ion Collider Experiment) at CERN, this task is performed by Electronic Logbook (eLogbook), custom-made application developed maintained Data-Acquisition team (DAQ), group which within collaboration has responsibility for Data Acquisition. Started as statistics repository, eLogbook evolved become not only fully functional electronic logbook,...
ALICE (A Large Ion Collider Experiment) is the detector system at LHC (Large Hadron Collider) optimized for study of heavy-ion collisions interaction rates up to 50 kHz and data beyond 1 TB/s. Its main aim behavior strongly interacting matter quark gluon plasma. preparing a major upgrade starting from 2021, it will collect with several upgraded sub-detectors (TPC, ITS, Muon Tracker Chamber, TRD TOF). The DAQ read-out be as well, new link called GBT (GigaBit Transceiver) max. speed 4.48 Gb/s...
ALICE (A Large Ion Collider Experiment) is the heavy-ion detector designed to study physics of strongly interacting matter and quark-gluon plasma at CERN Hadron (LHC). A flexible, large bandwidth Data Acquisition System (DAQ) has been deployed collect sufficient statistics in short running time foreseen per year for heavy ions accommodate very different requirements originated from 18 sub-detectors. The Test Environment (DATE) software framework handling data electronics up mass storage....
ALICE (A Large Ion Collider Experiment) is the heavy-ion detector designed to study physics of strongly interacting matter and quark-gluon plasma at CERN Hadron (LHC). A large bandwidth flexible Data Acquisition System (DAQ) has been deployed collect sufficient statistics in short running time available per year for heavy ion accommodate very different requirements originated from 18 sub-detectors. This paper will briefly describe components DAQ present scale tests conducted assess...
ALICE (A Large Ion Collider Experiment) is the heavy-ion detector designed to study physics of strongly interacting matter and quark-gluon plasma at CERN Hadron (LHC). The online Data Quality Monitoring (DQM) a key element Acquisition's software chain. It provide shifters with precise complete information quickly identify overcome problems, as consequence ensure acquisition high quality data. DQM typically involves gathering, analysis by user-defined algorithms visualization monitored
ALICE (A Large Ion Collider Experiment) is a heavy-ion experiment studying the physics of strongly interacting matter and quark-gluon plasma at CERN LHC (Large Hadron Collider). The DAQ (Data Acquisition System) based on large farm commodity hardware consisting more than 600 devices (Linux PCs, storage, network switches). reads data transferred from detectors through 500 dedicated optical links an aggregated sustained rate up to 10 Gigabytes per second stores 2.5 second. infoLogger log...