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

Volume

57

Issue

2

fYear

2010

fDate

4/1/2010 12:00:00 AM

Firstpage

642

Lastpage

649

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;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2009.2035118

Filename

5446484