ATLAS liquid argon calorimeter back end electronics

A. Bazan, F. Bellachia, J. Colas, G. Ionescu, R. Lafaye, S. Laplace, G. Perrot, L. Poggioli, J. Prast, H. Przysiezniak, I. Wingerter-Seez, B. Dinkespiler, Y. He, T. Liu, R. Stroynowski, A. Xiang, J. Yang, J. Ye, H. Wilkens, A. BlondelA. Clark, M. Diaz Gomez, I. Efthymiopoulos, D. La Marra, A. Léger, L. Moneta, S. Pernecker, I. Riu, L. Rosselet, A. Straessner, J. Ban, S. Boettcher, A. Gara, J. A. Parsons, S. Simion, W. Sippach, F. Henry-Couannier, E. Monnier, B. Repetti, S. Tisserant, A. Karev, L. Kurchaninov, H. Oberlack, Lo Fayard, P. Matricon, G. Unal, M. Escalier, F. Hubaut, B. Laforge, O. Le Dortz, D. Martin, P. Schwemling, M. L. Chu, S. C. Lee, D. S. Su, P. K. Teng

    Research output: Contribution to journalArticleResearchpeer-review

    25 Citations (Scopus)

    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. © 2007 IOP Publishing Ltd and SISSA.
    Original languageEnglish
    Article numberA32
    JournalJournal of Instrumentation
    Volume2
    Publication statusPublished - 13 Jun 2007

    Keywords

    • Digital signal processing
    • Electronic detector readout concepts (gas, liquid)

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  • Cite this

    Bazan, A., Bellachia, F., Colas, J., Ionescu, G., Lafaye, R., Laplace, S., Perrot, G., Poggioli, L., Prast, J., Przysiezniak, H., Wingerter-Seez, I., Dinkespiler, B., He, Y., Liu, T., Stroynowski, R., Xiang, A., Yang, J., Ye, J., Wilkens, H., ... Teng, P. K. (2007). ATLAS liquid argon calorimeter back end electronics. Journal of Instrumentation, 2, [A32].