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Scientific article
English

ATLAS liquid argon calorimeter back end electronics

ContributorsLiquid Argon Back End Electronics Collaboration
Published inJournal of instrumentation, vol. 2
Publication date2007
Abstract

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.

Keywords
  • LHC, ATLAS, Liquid Argon calorimeter, Back end electronics
Citation (ISO format)
Liquid Argon Back End Electronics Collaboration. ATLAS liquid argon calorimeter back end electronics. In: Journal of instrumentation, 2007, vol. 2. doi: 10.1088/1748-0221/2/06/P06002
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Article (Accepted version)
accessLevelRestricted
Identifiers
ISSN of the journal1748-0221
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