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
fDate :
4/1/2010 12:00:00 AM
Abstract :
We describe the ATLAS Liquid Argon calorimeter (LAr) electronics used to prepare signals for the L1 trigger, studied with a standalone data acquisition system built for the commissioning of the LAr-L1 electronics. 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, timing, and amplitude, which are employed for the readout of signals from both the main detector and the L1 branch. Performance studies using beam data is also shown.
Keywords :
calibration; particle calorimetry; readout electronics; ATLAS liquid argon calorimeter electronics; L1 trigger; LAr-L1 electronics; calibration data; data acquisition system; electromagnetic calorimeter; pulse shape; readout electronics; signal pre-processing system; Argon; Calibration; Chaos; Data acquisition; Detectors; Large Hadron Collider; Poles and towers; Pulse shaping methods; Signal processing; Timing; ATLAS liquid argon calorimeter; calibration; data acquisition; level 1 trigger;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2009.2035118
