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Dortmund 2021 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 66: DAQ, trigger and electronics III

T 66.4: Vortrag

Mittwoch, 17. März 2021, 16:45–17:00, Tp

Tile Rear Extension (TREX) Modul — •Damir Rassloff and Tigran Mkrtchyan — Kirchhoff-Institut für Physik, Heidelberg

During the phase-I upgrade of the ATLAS experiment, the Level-1 Calorimeter (L1Calo) trigger system is also undergoing a series of improvements. For the identification of isolated particles and jets the upgraded L1Calo trigger system is using new subsystems so called feature extractors (FEXes). The FEXes directly receive digitized data from the LAr Calorimeter. The Tile Calorimeter, on the other hand still send analog data to the L1Calo PreProcessor subsystem. In order to provide digitized hadronic transverse energy results at the LHC clock frequency from the Tile Calorimeter to the FEXes, the PreProcessor is being extended with new Tile Rear Extension (TREX) modules. The modules send the data to the FEX processors via optical fibers operating at 11.2 Gbps, while also maintaining the data path to the legacy L1Calo processors via electrical cables. This talk discusses the design, the different data paths and the monitoring of the TREX modules.

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