Heidelberg 2022 – scientific programme

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T: Fachverband Teilchenphysik

T 67: Myon Detectors

T 67.4: Talk

Wednesday, March 23, 2022, 17:10–17:25, T-H26

Quality Control in the Construction of new small-diameter Muon Drift Tube (sMDT) Chambers for the ATLAS Muon Spectrometer at the HL-LHC — •Daniel Buchin, Marian Rendel, Alice Reed, Patrick Rieck, Oliver Kortner, and Hubert Kroha — Max-Planck-Institut für Physik, München

In order to improve the muon trigger efficiency and the rate capability of the ATLAS muon detectors for operation at the high luminosity upgrade of the Large Hadron Collider (HL-LHC), the Monitored Drift Tube (MDT) tracking chambers in the inner barrel layer of the ATLAS Muon Spectrometer will be replaced by small-diameter Muon Drift Tube (sMDT) chambers integrated with new thin-gap RPC trigger chambers. The sMDT chambers fit, together with the RPCs, into the very tight available space and provide an order of magnitude higher background rate capability compared to the current detectors.

The sMDT chambers are in serial production since January 2021. In the talk, the measures implemented to assure the quality of the chambers will be explained, starting from the results of the tests and inspections each individual assembled drift tube is undergoing. The dedicated quality control database and monitoring web interface will also be discussed.