NDLI: LHCb Silicon Tracker DAQ and ECS Online Systems

Content Provider	IEEE Xplore Digital Library
Author	Esperante, D. Rodriguez, P. Buchler, A. Keune, A. Bay, A. Blanc, F. Bettler, M.O. Conti, G. Fave, V. Frei, R. Gueissaz, N. Haefeli, G. Luisier, J. Muresan, R. Nakada, T. Needham, M. Nicolas, L. Knecht, M. Perrin, A. Potterat, C. Schneider, O. Tran, M. Bauer, C. Britsch, M. Hofmann, W. Maciuc, F. Schmelling, M. Voss, H. Straumann, U. Anderson, J. Chiapolini, N. Hangartner, V. Salzmann, C. Steiner, S. Steinkamp, O. van Tilburg, J. Tobin, M. Vollhardt, A. Adeva, B. Fungueirino Pazos, J. Gallas, A. Pazos Alvarez, A. Perez Trigo, E. Plo Casasus, M. Saborido, J. Vazquez, P. Gong, A. Iakovenko, V. Okhrimenko, O. Pugatch, V.
Copyright Year	1963
Abstract	The LHCb experiment at CERN is designed to perform precision measurements of b quark decays. The Silicon Tracker plays a crucial role in reconstructing particle trajectories and consists of two silicon micro-strip detectors, the Tracker Turicensis and the Inner Tracker. The radiation environment and the magnetic field represent new challenges for the implementation of the Experiment Control System (ECS) and the data acquisition (DAQ). The DAQ has to deal with ~272 000 analog read-out channels and real-time DAQ at a rate of ~ 1.1 MHz with data processing at the Trigger Electronics and L1 (TELL1) board level. The TELL1 real-time algorithms for clustering thresholds and other computations run on dedicated FPGAs. After data processing the total throughput amounts to about 6.4 GB from an input data rate of ~ 337 GB per second. The ECS is based on the hierarchical finite state machine paradigm and allows distributed control access and multi-platform use. The ECS is able to control and monitor the detector hardware infrastructure (power supplies, DAQ electronics ...) as well as monitor the environmental parameters. It can also take automated actions on warnings or alarms. Finally a completely independent, hardware based safety system ensures the detector safe operation.
Sponsorship	IEEE Nuclear and Plasma Sciences Society Computer Applications in Nuclear and Plasma Sciences (CANPS) Lawrence Berkeley Lab. Lawrence Livermore Nat. Lab. APS College of William and Mary Continuous Electron Beam Accelerator Facility NASA Defence Nuclear Agency Sandia National Laboratories Jet Propulsion Laboratory Brookhaven Nat. Lab. Lawrence Livermore Nat. Lab IEEE/NPPS Radiat. Effects Committee Defence Nuclear Agency/DoD Sandia National Laboratories/DOE Jet Propulsion Laboratory/NASA Phillips Lab./DoD
Starting Page	569
Ending Page	576
Page Count	8
File Size	1505009
File Format	PDF
ISSN	00189499
Volume Number	57
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-04-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Silicon Data acquisition Particle tracking Detectors Magnetic field measurement Data processing Condition monitoring Hardware Performance evaluation Trajectory SCADA systems Control system data processing hierarchical finite state machines
Content Type	Text
Resource Type	Article
Subject	Nuclear and High Energy Physics Electrical and Electronic Engineering Nuclear Energy and Engineering

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