Title :
The DO central track trigger
Author :
Olsen, Jamieson ; Anderson, John ; Angstadt, Robert ; Babukhadia, Levan ; Bhattacharjee, Mrinmoy ; Blazey, Gerald ; Borcherding, Fred ; Connolly, Brian ; Cooke, Michael ; Desai, Satish ; Evans, David ; Grannis, Paul ; Grünendahl, Stefan ; Hu, Yuan ; Jain,
Author_Institution :
Fermi Nat. Accel. Lab., USA
fDate :
6/1/2004 12:00:00 AM
Abstract :
An overview of the system architecture and algorithms used for the DO Central Track Trigger (CTT) in the Run 2 of the Fermilab Tevatron Proton-Antiproton Collider is presented. This system uses information from the newly commissioned Central Fiber Tracker and Preshower Detectors to generate Level 1 trigger decisions. It also generates lists of seed tracks and preshower clusters that are sent to the Level 1 Muon Trigger, L2 Silicon Track Trigger, and Central and Forward Preshower Level 2 preprocessors. The system consists of modular boards which utilize field-programmable gate arrays (FPGAs) to implement trigger algorithms. The system delivers trigger decisions every 132 ns, based on input data flowing at a maximum sustained rate of 475 gigabits per second. The first results of trigger efficiency studies are presented.
Keywords :
data acquisition; field programmable gate arrays; high energy physics instrumentation computing; parallel processing; particle tracks; proton accelerators; reviews; scintillation counters; silicon radiation detectors; synchrotrons; trigger circuits; D0 Run II central track trigger upgrade; FPGA; L2 silicon track trigger; Tevatron collider; central fiber tracker; data acquisition; field-programmable gate arrays; level 1 muon trigger; level 1 trigger decisions; level 2 preprocessors; modular boards; overview; parallel processing; particle tracking; preshower clusters; preshower detectors; proton-antiproton collider; scintillation detectors; system architecture; trigger algorithms; Acceleration; Clustering algorithms; Electrons; Field programmable gate arrays; Laboratories; Mesons; Particle accelerators; Physics; Proton accelerators; Solid scintillation detectors; Data acquisition; FPGAs; field programmable gate arrays; parallel processing; particle tracking; scintillation detectors; triggering;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2004.828703
