Title :
The ATLAS LAr calorimeter Level 1 trigger signal pre-processing system: Installation, commissioning and calibration results
Author :
Boulahouache, Chaouki
Author_Institution :
Dept. of Phys. & Astron., Univ. of Pittsburgh, Pittsburgh, PA, USA
Abstract :
We describe the ATLAS Liquid Argon calorimeter (LAr) electronics used to prepare signals for the L1 trigger, together with the system used in the commissioning of the LAr-L1 output. This includes calibration data used to extract gains of all LAr calorimeters and timing shifts for different layers of the electromagnetic (EM) calorimeter. Analysis tools have been developed to study the pulse shape, time and amplitude for both the main readout and the L1 signals. Performance studies using beam data is also shown.
Keywords :
calibration; nuclear electronics; particle calorimetry; position sensitive particle detectors; readout electronics; trigger circuits; ATLAS Liquid Argon calorimeter electronics; L1 signals; beam data; calibration data; electromagnetic calorimeter; pulse shape; readout; timing shifts; trigger signal preprocessing system; Argon; Calibration; Chaos; Data acquisition; Hardware; Monitoring; Optical receivers; Poles and towers; Pulse shaping methods; Timing; ATLAS Liquid Argon calorimeter; Calibration; Data Acquisition; Level 1 Trigger;
Conference_Titel :
Real Time Conference, 2009. RT '09. 16th IEEE-NPSS
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-4454-0
DOI :
10.1109/RTC.2009.5321647
