A5105691267- Particle physics theoretical and experimental studies
- Particle Detector Development and Performance
- High-Energy Particle Collisions Research
- Quantum Chromodynamics and Particle Interactions
- Computational Physics and Python Applications
- Distributed and Parallel Computing Systems
- Dark Matter and Cosmic Phenomena
- Advanced Data Storage Technologies
- Radiation Detection and Scintillator Technologies
- Particle Accelerators and Free-Electron Lasers
- Particle accelerators and beam dynamics
- Structural Analysis of Composite Materials
- Parallel Computing and Optimization Techniques
- Astrophysics and Cosmic Phenomena
- Atomic and Subatomic Physics Research
- advanced mathematical theories
- Neutrino Physics Research
- Muon and positron interactions and applications
- Statistical Distribution Estimation and Applications
- Action Observation and Synchronization
- Advanced MEMS and NEMS Technologies
- Digital Radiography and Breast Imaging
- Algorithms and Data Compression
- Scientific Research and Discoveries
- Islamic Studies and History
European Organization for Nuclear Research
2008-2025
École Polytechnique Fédérale de Lausanne
2009
Istituto Nazionale di Fisica Nucleare, Sezione di Pisa
1997-2002
Scuola Normale Superiore
1997
The ATLAS experiment at CERN is planning full deployment of a new unified optical link technology for connecting detector front end electronics on the timescale LHC Run 4 (2025). It estimated that roughly 8000 GBT (GigaBit Transceiver) links, with transfer rates up to 10.24 Gbps, will replace existing links used readout, control and distribution timing trigger information. A class devices be needed interface many rest trigger, data-acquisition systems. In this paper FELIX (Front End LInk...
For new detector and trigger systems to be installed in the ATLAS experiment after LHC Run 2, a approach will followed for Front-End electronics interfacing. The FELIX (Front-End LInk eXchange) system function as gateway connecting: on one side links, well providing timing information; other commodity switched network built using standard technology (either Ethernet or Infiniband). is described this paper, results achieved so far are presented.
The ATLAS readout subsystem is the main interface between ∼ 1600 detector front-end links and higher-level trigger farms. To handle high event rate (up to 100 kHz) bandwidth 160 MB/s per link) PCs are equipped with four ROBIN (readout buffer input) cards. Each attaches three optical links, provides local buffering for approximately 300 ms communicates system data delete requests. According baseline architecture this communication runs via PCI bus of host PC. In addition, each a private...
The ATLAS experiment is located at the European Center for Nuclear Research (CERN) in Switzerland. It designed to observe collisions Large Hadron Collider (LHC): world's largest and highest-energy particle accelerator. Event triggering Data Acquisition one of extraordinary challenges faced by detectors high luminosity LHC collider upgrade. During 2011, reached instantaneous luminosities 4 × 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML"...
In the ATLAS experiment at LHC, ROD Crate DAQ provides a complete software framework to implement data acquisition functionality boundary between detector specific electronics and common part of system. Based on plugin mechanism, it allows selecting using services (like output monitoring channels) developing control acquire from modules providing infrastructure for control, calibration. Including also event building functionality, is intended be main tool first phase commissioning. This...
From the ATLAS Phase-I upgrade and onward, new or upgraded detectors trigger systems will be interfaced to data acquisition, detector control timing (TTC) by Front-End Link eXchange (FELIX). FELIX is core of Trigger/DAQ architecture. Functioning as a router between custom serial links commodity network, implemented server PCs with network interfaces PCIe cards large FPGAs many high speed fiber transceivers. By separating transport from manipulation, latter can done software in servers...
In the ATLAS experiment at LHC, ROD Crate DAQ provides a complete framework to implement data acquisition functionality boundary between detector specific electronics and common part of system. Based on plugin mechanism, it allows selecting using services (like output monitoring channels) developing simple libraries control, monitor, acquire and/or emulate electronics. Providing also event building functionality, is intended be main tool for first phase commissioning. This paper presents...
<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> During 2006 and spring 2007, integration commissioning of trigger data acquisition (TDAQ) equipment in the ATLAS experimental area has progressed. Much work focused on a final prototype setup consisting around eighty computers representing subset full TDAQ system. There have been series technical runs using this setup. Various tests run including those where 6 k Level-1 preselected simulated...
Event data from proton-proton collisions at the LHC will be selected by ATLAS experiment in a three level trigger system, which reduces initial bunch crossing rate of 40 MHz its first two levels (LVL1+LVL2) to ~3 kHz. At this Event-Builder collects all read-out system PCs (ROSs) and provides fully assembled events event-filter (EF), is third trigger, achieve further reduction ~ 200 Hz for permanent storage. The event-builder based on farm O(100) PCs, interconnected via gigabit Ethernet...
The NA48 experiment at the CERN SPS accelerator is making a measurement of direct CP violation parameter /spl epsiv/'//spl epsiv/ by comparing four rates decay K/sub S/ and L/ into 2/spl pi//sup 0/ +//spl -/. To reconstruct decays information from almost 13500 channels quasi-homogeneous liquid krypton electromagnetic calorimeter used. readout electronics has been designed to provide dynamic range few MeV about 50 GeV energy deposition per cell, sustain high rate incident particles. system...
A new type of scintillation detector is being developed with standard microfabrication techniques. It consists a dense array scintillating waveguides obtained by coupling microfluidic channels filled liquid scintillator to photodetectors. Easy manipulation scintillators inside devices allow their flushing, renewal and exchange making the active medium intrinsically radiation hard. The detectors have been fabricated photostructuration hard epoxy resin (SU-8) deposited on silicon wafers...
About 600 custom-built ReadOut Buffer INput (ROBIN) PCI boards are used in the DataCollection system of ATLAS experiment at CERN. They plugged into slots about 150 PCs System (ROS). In standard busbased setup ROS requests and event data passed via interfaces. The performance meets requirements, but may need to be enhanced for more demanding use cases. Modifications software firmware ROBINs have made it possible improve by using onboard Gigabit Ethernet interfaces passing part so called...
The PeakSum Processing System (PSS) is an element of the neutral trigger NA48 experiment at CERN. PSS a pipelined processor based on semi-custom device. It provides information energy pattern released. In electromagnetic calorimeter experiment, used to discriminate K/sub S/ and L/ events.