DocumentCode
1469674
Title
The ATLAS Trigger System
Author
Padilla, Cristóbal
Author_Institution
Inst. de Fis. d´´Altes Energies (IFAE), UAB, Barcelona, Spain
Volume
57
Issue
2
fYear
2010
fDate
4/1/2010 12:00:00 AM
Firstpage
650
Lastpage
657
Abstract
The ATLAS detector at CERN´s Large Hadron Collider (LHC) 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; nuclear electronics; position sensitive particle detectors; ATLAS detector; ATLAS trigger system; CERN Large Hadron Collider; custom-built electronics; data acquisition; proton-proton collisions; trigger level; Collaboration; Computer architecture; Detectors; Elementary particles; Helium; Large Hadron Collider; Mesons; Particle scattering; Physics; Signal design; Data acquisition; detectors; elementary particles; trigger;
fLanguage
English
Journal_Title
Nuclear Science, IEEE Transactions on
Publisher
ieee
ISSN
0018-9499
Type
jour
DOI
10.1109/TNS.2009.2037623
Filename
5446486
Link To Document