Performance of the upgraded PreProcessor of the ATLAS Level-1 Calorimeter Trigger



Aad, G, Abbott, B, Abbott, DC, Abud, A Abed, Abeling, K, Abhayasinghe, DK, Abidi, SH, AbouZeid, OS, Abraham, NL, Abramowicz, H
et al (show 2887 more authors) (2020) Performance of the upgraded PreProcessor of the ATLAS Level-1 Calorimeter Trigger. JOURNAL OF INSTRUMENTATION, 15 (11). P11016-.

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Abstract

The PreProcessor of the ATLAS Level-1 Calorimeter Trigger prepares the analogue trigger signals sent from the ATLAS calorimeters by digitising, synchronising, and calibrating them to reconstruct transverse energy deposits, which are then used in further processing to identify event features. During the first long shutdown of the LHC from 2013 to 2014, the central components of the PreProcessor, the Multichip Modules, were replaced by upgraded versions that feature modern ADC and FPGA technology to ensure optimal performance in the high pile-up environment of LHC Run 2. This paper describes the features of the new Multichip Modules along with the improvements to the signal processing achieved.

Item Type: Article
Additional Information: 49 pages in total, author list starting page 33, 19 figures, 1 table, submitted to JINST. All figures including auxiliary figures are available at https://atlas.web.cern.ch/Atlas/GROUPS/PHYSICS/PAPERS/TDAQ-2019-01
Uncontrolled Keywords: Calorimeters, Trigger concepts and systems (hardware and software)
Depositing User: Symplectic Admin
Date Deposited: 14 Dec 2020 10:16
Last Modified: 18 Jan 2023 23:17
DOI: 10.1088/1748-0221/15/11/P11016
Open Access URL: https://iopscience.iop.org/article/10.1088/1748-02...
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/3110219