DocumentCode
3565738
Title
The second level trigger of the ATLAS experiment at CERN´s LHC
Author
Abolins, M. ; Armstrong, S. ; Baines, J.T. ; Barisonzi, M. ; Beck, H.P. ; Bee, C.P. ; Beretta, M. ; Biglietti, M. ; Blair, R. ; Bogaerts, A. ; Boisvert, V. ; Bosman, M. ; Boterenbrood, H. ; Botterill, D. ; Brandt, S. ; Caron, B. ; Casado, P. ; Cataldi, G.
Author_Institution
COPPE, Univ. Fed. do Rio de Janeiro, Brazil
Volume
2
fYear
2003
Firstpage
1309
Abstract
The ATLAS trigger reduces the rate of interesting events to be recorded for off-line analysis in three successive levels from 40 MHz to about 100 kHz, about 2 kHz and about 200 Hz. The High Level Triggers and Data Acquisition System are designed to profit from commodity computing and networking components to achieve the required performance. We discuss Data Flow aspects of the design of the Second Level Trigger (LVL2) and present results of performance measurements.
Keywords
Buffer storage; Computer networks; Data acquisition; Detectors; Energy measurement; Large Hadron Collider; Magnetic field measurement; Mesons; Particle measurements; Performance analysis;
fLanguage
English
Publisher
ieee
Conference_Titel
Nuclear Science Symposium Conference Record, 2003 IEEE
ISSN
1082-3654
Print_ISBN
0-7803-8257-9
Type
conf
DOI
10.1109/NSSMIC.2003.1351935
Filename
1351935
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