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T: Fachverband Teilchenphysik

T 96: DAQ, Trigger and Electronics IV

T 96.5: Vortrag

Donnerstag, 18. März 2021, 17:00–17:15, Tu

Ongoing upgrade activities for the CMS DT system — •Dmitry Eliseev, Thomas Hebbeker, and Markus Merschmeyer — III. Physics Institute A, RWTH Aachen University

The Drift Tube (DT) system is a muon detection system located in the barrel region of the Compact Muon Solenoid (CMS) experiment. The DT system is a combination of numerous gas detector cells (DT cells) grouped within bigger units (DT chambers). In preparation for the LHC's High-Luminosity phase a number of upgrades are taking place for the DT system. Although the core hardware of the DT chambers will remain the same for the High-Luminosity phase, numerous improvements are provided for the DT signal acquisition chain. The upgrade involves replacing particular components in the data acquisition chain, as well as an essential change to the structure of this chain. These improvements result in a higher acquisition rate and a more advanced triggering.

This talk covers particular upgrade activities for the DT system: new structure of the DT acquisition chain, design and operation of the involved components. Special focus is given to the design of the On-Board DT (OBDT) electronics, located in a dedicated compartment of each DT chamber. The OBDT acquires multiple parallel signals from front-end circuits of every DT cell of the chamber. The OBDTs are then sending the data containing the full information of the muon hits from the DT chambers to the trigger and DAQ systems.

Current status of the upgrade activities, functional tests, hard- and software verification tests are covered in the talk as well.