Conveners
Trigger and DAQ Systems
- Young-Kee Kim
Trigger and DAQ Systems
- Srini Rajagopalan (BNL)
Trigger and DAQ Systems
- Luciano Ristori (INFN Pisa)
Trigger and DAQ Systems
- Riccardo Paoletti (INFN)
Trigger and DAQ Systems
- Fred Wickens (STFC)
Trigger and DAQ Systems
- Adrian Biland (Eidgenossische Technische Hochschule Zurich/ETH (ETH))
Trigger and DAQ Systems
- Rainer Bartoldus (CERN)
Trigger and DAQ Systems
- Beat Jost (CERN)
Trigger and DAQ Systems
- Frans Meijers (CERN)
Sergio Ballestrero
(U.Johannesburg+CERN/ATLAS)
09/06/2011, 14:00
Trigger and Data Acquisition Systems
Oral Presentation
In 2010 the ATLAS Trigger and Data Acquisition (TDAQ) system has been operated with an overall efficiency of 96%, while meeting evolving and demanding conditions. By the end of the proton run, the LHC instantaneous peak luminosity had increased by 5 orders of magnitudes. Correspondingly the ATLAS first-level trigger rate grew by a factor 100, reaching 40 kHz, roughly half of the design rate....
Beat Jost
(CERN)
09/06/2011, 14:30
Trigger and Data Acquisition Systems
Oral Presentation
After the first year of serious running of the LHCb experiment it's probably appropriate to report on its performance and also retrospect on the design criteria and implementation of the system.
We will also look forward and present first ideas of the system in view of the planned upgrade of the experiment in 2016 or so.
Dr
Filippo Costa
(CERN)
09/06/2011, 15:00
Trigger and Data Acquisition Systems
Oral Presentation
ALICE (A Large Ion Collider Experiment) is the detector system at the LHC (Large Hadron Collider) optimized for the study of heavy-ion collisions. Its main aim is to study the behavior of strongly interacting matter and the quark gluon plasma. Currently all the information sent by the 18 sub-detectors composing ALICE are read out by DATE (ALICE Data Acquisition and Test Environment), the ALICE...
Alberto Valero
(IFIC - University of Valencia)
09/06/2011, 16:00
Trigger and Data Acquisition Systems
Oral Presentation
The Tile Calorimeter (TileCal) for the ATLAS experiment at the CERN Large Hadron Collider (LHC) is currently taking data with proton‐proton collisions. The Tile Calorimeter is a sampling calorimeter with steel as absorber and scintillators as active medium. The scintillators are read out by wavelength shifting fibers coupled to photomultiplier tubes (PMT). The analogue signals from the PMTs...
Martin Wessels
(Heidelberg University, KIP)
09/06/2011, 16:30
Trigger and Data Acquisition Systems
Oral Presentation
The ATLAS Level-1 Calorimeter Trigger is one of the main elements
of the first stage of event selection for the ATLAS experiment at
the LHC. The input stage consists of a mixed analogue/digital
component taking trigger sums from the ATLAS calorimeters. This
stage determines the energies sent to the algorithmic trigger
logic. The complete processing chain is performed in a digital,...
Pamela Renee Klabbers
(University of Wisconsin)
09/06/2011, 17:00
Trigger and Data Acquisition Systems
Oral Presentation
The Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC) has been collecting data at center-of-mass energy 7 TeV since March 2010. CMS detects the products of proton beams colliding at a rate of 40 MHz. The Level-1 trigger reduces this collision rate to an output rate of 100 kHz, which is forwarded to the High-Level trigger, a dedicated computer farm, which reduces that...
Dr
Robert Frazier
(University of Bristol)
09/06/2011, 17:30
Trigger and Data Acquisition Systems
Oral Presentation
This paper describes two aspects of the current R&D programme towards upgrades of the CMS trigger and detector readout systems. We show that the adoption of modern hardware and software components, in non-traditional architectures, can bring improvements in cost, reliability and flexibility.
Firstly, as the CMS experiment moves away from VME-based electronics to telecoms-oriented...
Srini Rajagopalan
(Department of Physics-Brookhaven National Laboratory (BNL))
10/06/2011, 14:00
Trigger and Data Acquisition Systems
Oral Presentation
The ATLAS trigger system has collected proton-proton collisions over 5 orders of magnitude in instantaneous luminosity during the 2010 LHC running. The trigger system is designed to reduce the event rate from 40MHz to 200Hz using a hardware-based Level 1 Trigger (L1) and a software-based High Level Trigger (HLT). The trigger selection is based on identifying object candidates, such as,...
Roel Aaij
(Unknown)
10/06/2011, 14:40
Trigger and Data Acquisition Systems
Oral Presentation
LHCb is a single arm spectrometer covering the pseudo-rapidity range between
1.9 and 4.9, and has been optimised to perform flavour physics measurements at the LHC.
The present two level trigger system is able select charm and beauty decay
products with high efficiency due to the ability to trigger on transverse
momenta below the B-meson invariant mass. The trigger can select both...
Rustem Ospanov
(University of Pennsylvania)
10/06/2011, 15:10
Trigger and Data Acquisition Systems
Oral Presentation
In 2010 the ATLAS experiment has successfully recorded data from LHC collisions with high efficiency and excellent data quality. ATLAS employs a three-level trigger system to select events of interest for physics analyses and detector commissioning. The trigger system consists of a custom-designed hardware trigger at level-1 (L1) and software algorithms executing on commodity servers at the...
Dr
Luciano Ristori
(INFN, Pisa)
10/06/2011, 16:00
Trigger and Data Acquisition Systems
Oral Presentation
The CDF Silicon Vertex Trigger (SVT) at the Fermilab Tevatron is a hardware based fast track finding device designed to detect secondary vertices from heavy flavor decays in real time. The SVT was conceived in 1990, was commissioned in 2001, is still operating as part of the CDF Level 2 trigger and has allowed CDF to collect a very large sample of hadronic decays of Charm and Beauty mesons and...
Dr
Jim Hoff
(Fermilab)
10/06/2011, 16:45
Trigger and Data Acquisition Systems
Oral Presentation
Hardware-based pattern recognition for fast triggering on particle tracks has been successfully used in high-energy physics experiments for some time. The CDF Silicon Vertex Trigger (SVT) at the Fermilab Tevatron is an excellent example. The method used there, developed in the 1990’s, is based on algorithms that use a massively parallel associative memory architecture to identify patterns...
Dr
Francesco Crescioli
(INFN Pisa / Universita` di Pisa)
10/06/2011, 17:05
Trigger and Data Acquisition Systems
Oral Presentation
The FastTracKer (FTK) is a dedicated hardware system able to perform online fast and precise track reconstruction of the full events at the Atlas experiment, within an average latency of few dozens of microseconds. It is made of two pipelined processors: the Associative Memory (AM), finding low precision tracks called "roads", and the Track Fitter (TF), refining the track quality with high...
Dr
Leonard Spiegel
(Fermi National Accelerator Laboratory (FNAL))
10/06/2011, 17:25
Trigger and Data Acquisition Systems
Oral Presentation
Future high luminosity experiments at the energy frontier will face unprecedented challenges. Filtering of information will be increasingly pushed closer to the sensors to reduce the huge data loads and high data transmission power and cooling mass associated with heavily occupied strip or pixel detectors. This talk describes an R&D effort directed toward providing a proof of concept for a...
Dr
Giuseppe Broccolo
(Scuola Normale Superiore & INFN, Pisa)
10/06/2011, 17:45
Trigger and Data Acquisition Systems
Oral Presentation
Experience at high luminosity hadrons collider experiments shows that tracking information enhances the trigger rejection capabilities while retaining high efficiency for interesting physics events. The design of a tracking based trigger for Super LHC (S-LHC), the already envisaged high luminosity upgrade of the LHC collider, is an extremely challenging task, and requires the identification of...
Gianluca Lamanna
(CERN),
Sozzi Marco
(Pisa INFN)
11/06/2011, 09:00
Trigger and Data Acquisition Systems
Oral Presentation
We discuss an approach for using commercial graphic processors (GPUs) at
the earliest trigger stages in high-energy physics experiments, and study its
implementation on a real trigger system in preparation.
In particular we focus on the possibility to reconstruct rings in a
Cherenkov detector as building block of a selective trigger condition for
rare decay search.
Latency and...
Wesley Ketchum
(University of Chicago)
11/06/2011, 09:30
Trigger and Data Acquisition Systems
Oral Presentation
Graphical Processing Units (GPUs) have evolved into highly parallel, multi-threaded, multicore powerful processors with high memory bandwidth, driven by the high demand of 3-D graphics. As such, GPUs are used in a variety of intensive computing applications. The combination of highly parallel architecture and high memory bandwidth makes GPUs a potentially promising technology for effective...
Leonard Apanasevich
(UIC)
11/06/2011, 10:00
Trigger and Data Acquisition Systems
Oral Presentation
The CMS trigger system has been designed to cope with unprecedented luminosities and accelerator bunch-crossing rates of up to 40 MHz at LHC. The High-Level-Trigger (HLT) combines in a novel way the traditional L2 and L3 trigger components which are implemented in a commercial Filter Farm with thousands of CPUs. The flexibility of a contiguous software environment allows the coherent tuning of...
Mr
Alan Prosser
(Fermilab)
11/06/2011, 11:00
Trigger and Data Acquisition Systems
Oral Presentation
Modern particle detectors depend upon optical fiber links to deliver event data to upstream trigger and data processing systems. Future detector systems can benefit from the development of dense arrangements of high speed optical links emerging from the telecommunications and storage area network market segments. These links support data transfers in each direction at rates up to 120 Gbps in...
Dr
David Underwood
(HEP, Argonne National Laboratory (ANL))
11/06/2011, 11:20
Trigger and Data Acquisition Systems
Oral Presentation
We are developing data links in air, utilizing steering by MEMS mirrors, and an optical feedback path for the control loop. The laser, modulator, and lens systems used are described, as well as two different electronic systems for the steering feedback loop.
This system currently operates at 1 Gb/s, but could be upgraded.
This link works over distances of order meters. Other links for long...
Mr
Dehui Sun
(Institute of High Energy Physics, Chinese Academy of sciences)
11/06/2011, 11:40
Trigger and Data Acquisition Systems
Oral Presentation
The Belle II experiment is an upgrade of the KEK B-Factory Belle experiment. Upgrade of the accelerator to SuperKEKB, which will increase its luminosity to 8 x 10^35 cm^-2 s^-1, requires many new detector components: a totally new pixel detector, a significantly larger silicon vertex detector (SVD), replacement central drift chamber (CDC), new particle identification (PID) detector...
Rémi Cornat
(LLR - École polytechnique)
11/06/2011, 12:00
Trigger and Data Acquisition Systems
Oral Presentation
A common DAQ system is being developed within the CALICE collaboration. It provides a flexible and scalable architecture based on giga-ethernet and 8b/10b serial links in order to transmit either slow control data, fast signals or read out data. A detector interface (DIF) is used to connect detectors to the DAQ system based on a single firmware shared among the collaboration but targeted on...
Dr
Alessandro Polini
(INFN - Bologna)
11/06/2011, 14:00
Trigger and Data Acquisition Systems
Oral Presentation
An Insertable B-Layer is planned for the upgrade of the ATLAS detector and will add a fourth and innermost silicon layer to the existing Pixel detector. 12 million pixels attached to new FE-I4 readout ASICs will require new off-detector electronics which is currently realized with two VME-based boards: a Back Of Crate module
implementing optical I/O functionality and a Readout Driver module...
12.
An ATCA-based High Performance Compute Node for Trigger and Data Acquisition in Large Experiment
Dr
hao xu
(IHEP,Beijing)
11/06/2011, 14:20
Trigger and Data Acquisition Systems
Oral Presentation
This paper describes the design of ATCA-based high performance compute Node for high level trigger and data acquisition in large physics experiment like PANDA, BESIII and Belle II. For an experiment like PANDA, the trigger and data acquisition system needs to handle interaction rates of the order of more than 10^7/s and data rates of 200 GB/s and more. The high level trigger and data...
Gregg Thayer
(SLAC National Accelerator Laboratory)
11/06/2011, 14:40
Trigger and Data Acquisition Systems
Oral Presentation
Current generations of HEP Data Acquisition Systems either in production or development are differentiated from DAQ systems used in other disciplines by the significant amounts of data they must both ingest and process, typically at very high rates. In practice this has resulted in the construction of systems that are in fact massively parallel computing systems. They are distinguished from...
Prof.
Christopher White
(IIT)
11/06/2011, 15:00
Trigger and Data Acquisition Systems
Oral Presentation
The Daya Bay Reactor Neutrino Experiment will consist of seventeen separate detector subsystems distributed in three underground experimental halls. There will be eight PMT based anti-neutrino detectors (ADs), six water-Cherenkov detectors, and three RPC detector subsystems. Each will be readout using an independent VME crate with a self-contained trigger. A master trigger module will be...
Dr
Susan Kasahara
(University of Minnesota)
11/06/2011, 16:00
Trigger and Data Acquisition Systems
Oral Presentation
The NOvA (NuMI Off-Axis nue Appearance) experiment is a long baseline neutrino experiment using the NuMI main injector neutrino beam at Fermilab and is designed to search for numu→nue oscillations. The experiment will consist of two detectors; both positioned 14 mrad off the beam axis: a 222 ton Near detector to be located in an underground cavern at Fermilab and a 15 kton Far detector to be...
Monica Tecchio
(University of Michigan)
11/06/2011, 16:30
Trigger and Data Acquisition Systems
Oral Presentation
The goal of K0TO experiment at J-Parc is to discover and measure the rate of the rare decay of the neutral KL into a neutral pion, a neutrino and an antineutrino, for which the Standard Model predicts a branching ratio of (2.8+/-0.4)x10E-11.
The experiment is a follow-up to E391 at KEK with a completely redesigned beamline, a new Cesium Iodide calorimeter with increased granularity and...
Dr
Hao Xu
(IHEP,Beijing)
11/06/2011, 17:00
Trigger and Data Acquisition Systems
Oral Presentation
PANDA is a general purpose hadron spectrum to be installed in the high energy storage ring of the Future Anti-proton and Ion Research facility-FAIR, in Germany. It employs the high quality cooled anti-proton beam to hit fixed target to do research on strong interaction, weak interaction, exotic states of matter, hadron structure and so on. Due to the rich physics studies with different event...
Frans Meijers
(CERN)
11/06/2011, 17:30
Trigger and Data Acquisition Systems
Oral Presentation
The data-acquisition (DAQ) system of the CMS experiment at the LHC performs the read-out and assembly of events accepted by the first level hardware trigger. Assembled events are made available to the high-level trigger (HLT) which selects interesting events for offline storage and analysis. The system is designed to handle a maximum input rate of 100 kHz and an aggregated throughput of 100...
Dr
Roberto Cardarelli
(INFN Roma "Tor Vergata")
13/06/2011, 14:00
Trigger and Data Acquisition Systems
Oral Presentation
Muon triggering at the s-LHC luminosity imposes very strict requirements on the trigger detectors concerning not only the rate capability but also to the tracking accuracy. Indeed an accurate 3D tracking allows both to define a sharp threshold in the muon transverse momentum and to efficiently reject the low energy uncorrelated background.
Moreover in order to be used for the first trigger...
Dr
Emanuel Pollacco
(CEA Saclay)
13/06/2011, 14:20
Trigger and Data Acquisition Systems
Oral Presentation
In experiments with radioactive beams from heavy ions facilities it is shown that active targets and TPCs experimental methods are versatile and effective means to study nuclear spectroscopy (ref. 1). The principle advantages are good resolution, versatility and high luminosity for the detection for low energy recoils. To address the needs of the nuclear physics community (ACTAR (GANIL),...
Sebastian Schopferer
(Physikalisches Institut der Universität Freiburg)
13/06/2011, 14:40
Trigger and Data Acquisition Systems
Oral Presentation
The GANDALF 6U-VME64x/VXS module [1,2] has been designed to cope with a variety of readout tasks in high energy and nuclear physics experiments. The exchangeable mezzanine cards allow an employment of the system in very different applications such as analog-to-digital or time-to-digital conversions, coincidence matrix formation, fast pattern recognition or fast trigger generation.
Based on...
Dr
Zongru Wan
(Kansas State)
13/06/2011, 15:00
Trigger and Data Acquisition Systems
Oral Presentation
For large international High Energy Physics experiments, modern web
technologies make the online monitoring of detector status, data acquisition
status, trigger rates, luminosity, etc., accessible for the collaborators
anywhere and anytime. This helps the collaborating experts monitor the status
of the experiment, identify the problems, and improve data-taking efficiency.
We present the...
Mr
Daniele Dequal
(Università degli studi di Padova)
13/06/2011, 15:20
Trigger and Data Acquisition Systems
Oral Presentation
The ICARUS-T600 detector at LNGS laboratory is the largest Liquid Argon TPC (LAr-TPC) operating in an underground laboratory. Its calorimetric resolution and topology reconstruction capabilities permit a wide physics program, which goes from nucleon decay to the study of the oscillation on CNGS neutrino beam. Atmospheric as well as solar neutrinos are also a case of study. The events...
