Dortmund 2021 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 96: DAQ, Trigger and Electronics IV

T 96.3: Vortrag

Donnerstag, 18. März 2021, 16:30–16:45, Tu

Hardware Demonstrator of the MDT Trigger Processor for the ATLAS HL-LHC Upgrade — •Davide Cieri, Markus Fras, Oliver Kortner, Sandra Kortner, Hubert Kroha, and Robert Richter — Max-Planck-Institut für Physik, Munich, Germany

The novel MDT Trigger Processor (MDTTP) is a fundamental part of the upgrade of the first-level (L0) muon trigger of the ATLAS experiment at the HL-LHC. The new system will be responsible for refining the muon track candidate measurements using for the first time at L0 the precision tracking information from Monitored Drift Tube (MDT) chambers in addition to the trigger chamber information. The system will also transmit the MDT hit data to the data acquisition (DAQ) system in the event of a trigger accept. A total of 64 MDTTP boards will be installed in ATLAS, one for each MDT trigger sector. The design of the MDTTP is highly challenging, requiring a high number of optical links and high-performance processing units.

In this talk, the recently designed and assembled hardware demonstrator of MDTTP will be presented. The demonstrator consists of modular ATCA blade, composed by two modules: the Service Module responsible for the powering and the infrastructure; and the Command Module, which performs the trigger and DAQ processing. The Command Module mounts two powerful FPGA devices, which run the trigger and DAQ algorithms. In addition, the system employs eight 12-channel bidirectional optical tranciever modules with a link speed up to 25 Gbps, which are fundamental to provide communication with other components of the muon trigger system.