Heidelberg 2022 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 43: DAQ and Trigger 2

T 43.2: Vortrag

Dienstag, 22. März 2022, 16:30–16:45, T-H28

The MDT Trigger Processor for the ATLAS HL-LHC Upgrade — •Davide Cieri, Markus Fras, Oliver Kortner, and Sandra Kortner — Max-Planck-Institut für Physik, Munich, Germany

The novel MDT Trigger Processor (MDTTP) system 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 improving the muon momentum resolution and thus refining the muon selectivity, 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.

We present here the recently designed prototype of the MDTTP. The prototype adopts a ATCA design, composed by two modules: the Service Module responsible for the powering and the infrastructure; and the Command Module, performing the trigger and DAQ processing and communicating with the other components of the ATLAS muon trigger. The Command Module mounts a state-of-the-art Xilinx Virtex Ultrascale+ FPGA, and employs ten 12-channel bidirectional optical transceiver modules with a link speed of up to 14 Gbps.