Performance of the upgraded preprocessor of the ATLAS Level-1 calorimeter trigger

0537666 - FZÚ 2021 RIV GB eng J - Journal Article
Aad, G. - Abbott, B. - Abbott, D.C. - Chudoba, Jiří - Hejbal, Jiří - Hladík, Ondřej - Jačka, Petr - Jakoubek, Tomáš - Kepka, Oldřich - Kroll, Jiří - Kupčo, Alexander - Lokajíček, Miloš - Lysák, Roman - Marčišovský, Michal - Mikeštíková, Marcela - Němeček, Stanislav - Penc, Ondřej - Šícho, Petr - Staroba, Pavel - Svatoš, Michal - Taševský, Marek … Total 2897 authors
Performance of the upgraded preprocessor of the ATLAS Level-1 calorimeter trigger.
Journal of Instrumentation. Roč. 15, č. 11 (2020), s. 1-48, č. článku P11016. ISSN 1748-0221. E-ISSN 1748-0221
R&D Projects: GA MŠk(CZ) LM2018104; GA MŠk(CZ) LTT17018
Institutional support: RVO:68378271
Keywords : ATLAS * CERN * LHC * calorimeters * FPGA * trigger
OECD category: Particles and field physics
Impact factor: 1.415, year: 2020
Method of publishing: Open access

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.

Permanent Link: http://hdl.handle.net/11104/0315526