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Heidelberg 2022 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 96: Detector Systems 3

T 96.6: Vortrag

Donnerstag, 24. März 2022, 17:30–17:45, T-H27

Commissioning of the LHCb Scintillating Fibre TrackerSebastian Bachmann, Daniel Berninghoff, Xiaoxue Han, Blake Leverington, Ulrich Uwer, and •Lukas Witola — Universität Heidelberg, Heidelberg, Deutschland

The LHCb detector underwent a major upgrade in the past years. The modifications enable the detector to operate at an increased instantaneous luminosity and to read out data at the LHC bunch crossing rate of 40MHz. The new operating conditions required the replacement of the complete tracking system. The main tracking stations are replaced by the SciFi Tracker, a large high granular scintillating fibre tracker readout by arrays of silicon photomultipliers (SiPMs). A custom ASIC is used to digitise the SiPM signals at 40MHz. Further digital electronics perform clustering and data-compression before the data is sent via optical links to the DAQ system.
The detector modules together with the readout electronics and all services are mounted on so-called C-Frames. The serial assembly and commissioning of frames is in its last stages before the start of the LHC in early 2022. The talk will give an overview of the detector and present experiences from the serial production and the latest commissioning results.

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