NDLI: Overview of the ATLAS data acquisition system operating at the TeV scale

Content Provider	IEEE Xplore Digital Library
Author	Borer, C.
Copyright Year	2010
Description	Author affiliation: Albert Einstein Center for Fundamental Physics, Laboratory for High Energy Physics, University of Bern, Switzerland (Borer, C.)
Abstract	This paper focuses on the operation of the ATLAS data acquisition system during the first months of 2010. ATLAS is one of the two multipurpose detectors at the Large Hadron Collider (LHC), which provides proton-proton collisions at the unprecedented centre-of-mass energy of 7 TeV. The ATLAS data acquisition system is based on O(2k) processing nodes, interconnected by a multi-layer Gigabit Ethernet network. About 20k applications will provide the needed capabilities in terms of run control, event selection, data flow, local storage and data monitoring. The whole data acquisition system has been successfully commissioned during the last two years with cosmic ray and calibration data and it turned out to be robust and reliable. Nevertheless, the continuous operation with beams, the concurrent trigger commissioning, and the understanding of detector and physics performance will pose new challenges. The flexibility of the data acquisition infrastructure will be probed and exploited, in order to comply with the consequent unpredictable working conditions in terms of data-flow, monitoring and configuration requirements. Concerning the latter in particular, the data acquisition efficiency will have to be kept under control, profiting by the special tools and techniques especially put in place. The goal is to minimise both downtime and dead-time, allowing for runtime reconfiguration of the data acquisition and sub-detectors systems as well as for automatic error handling and recovery.
Starting Page	1
Ending Page	4
File Size	1646216
Page Count	4
File Format	PDF
ISBN	9781424471089
e-ISBN	9781424471102
DOI	10.1109/RTC.2010.5750347
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-05-24
Publisher Place	Portugal
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Detectors Data acquisition Large Hadron Collider Physics Bandwidth Software Calibration
Content Type	Text
Resource Type	Article

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