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ATLAS liquid argon calorimeter back end electronics
Univ Savoie, LAPP, CNTS IN2P3, Annecy Le Vieux, France.
2007 (English)In: Journal of Instrumentation, ISSN 1748-0221, E-ISSN 1748-0221, Vol. 2Article in journal (Refereed) Published
Abstract [en]

The liquid argon calorimeters play a central role in the ATLAS (A Toroidal LHC Apparatus) experiment. The environment at the Large Hadron Collider (LHC) imposes strong constraints on the detectors readout systems. In order to achieve very high precision measurements, the detector signals are processed at various stages before reaching the Data Acquisition system (DAQ). Signals from the calorimeter cells are received by on-detector Front End Boards (FEB), which sample the incoming pulse every 25 ns and digitize it at a trigger rate of up to 75 kHz. Off-detector Read Out Driver ( ROD) boards further process the data and send reconstructed quantities to the DAQ while also monitoring the data quality. In this paper, the ATLAS Liquid Argon electronics chain is described first, followed by a detailed description of the off-detector readout system. Finally, the tests performed on the system are summarized.

Place, publisher, year, edition, pages
2007. Vol. 2
Keyword [en]
electronic detector readout concepts (gas liquid), digital signal processing
National Category
Subatomic Physics
Identifiers
URN: urn:nbn:se:kth:diva-85311DOI: 10.1088/1748-0221/2/06/P06002ISI: 000253651600004OAI: oai:DiVA.org:kth-85311DiVA: diva2:499749
Note
QC 20120306Available from: 2012-02-13 Created: 2012-02-13 Last updated: 2017-12-07Bibliographically approved

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