DocumentCode
2309830
Title
The ATLAS trigger system
Author
Padilla, C.
Author_Institution
Inst. de Fis. d´´Altes Energies (IFAE), UAB, Barcelona, Spain
fYear
2009
fDate
10-15 May 2009
Firstpage
326
Lastpage
333
Abstract
The ATLAS detector at CERN´s Large Hadron Collider will be exposed to proton-proton collisions at a rate of 40 MHz. A three-level trigger system has been designed to select potentially interesting events and reduce the incoming rate to about 200 Hz of storage rate. The first trigger level is implemented in custom-built electronics; the second and third levels are realized in software. In this paper, the trigger system, its design parameters and results from the LHC run in 2008 are described.
Keywords
data acquisition; drift chambers; high energy physics instrumentation computing; nuclear electronics; position sensitive particle detectors; trigger circuits; ATLAS detector; ATLAS trigger system; CERN´s Large Hadron Collider; LHC; custom-built electronics; data acquisition; design parameters; proton-proton collisions; three-level trigger system; Detectors; Large Hadron Collider; Data Acquisition; Detectors; Elementary Particles; Trigger;
fLanguage
English
Publisher
ieee
Conference_Titel
Real Time Conference, 2009. RT '09. 16th IEEE-NPSS
Conference_Location
Beijing
Print_ISBN
978-1-4244-4454-0
Type
conf
DOI
10.1109/RTC.2009.5321724
Filename
5321724
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