The LHCb SciFi Tracker: Assembly, Commissioning & Operations

by Dr Lukas Witola (TU Dortmund)

Friday 6 Jun 2025, 14:30 → 15:15 Europe/Zurich

NB2/158 (RUB)

The LHCb detector has undergone a major upgrade for Run 3 of the LHC, enabling it to operate at a five times higher instantaneous luminosity and to be read out at the LHC bunch crossing frequency of 40 MHz. The new operating conditions require the replacement of the complete tracking system. The main tracking stations are replaced by the SciFi Tracker, a large high granular tracking detector based on 250 µm scintillating fibres read out by silicon photomultipliers (SiPMs) arrays. A custom ASIC is used to digitise the SiPM signals at 40 MHz, and further digital electronics perform clustering and data compression before the data is sent via optical links to the data acquisition system. 

 

Assembly and installation of the SciFi Tracker took place from 2019 to 2022 and was accompanied by an extensive commissioning procedure. This talk will give an overview of the detector and present experiences from the assembly, commissioning, and operation during Run 3 of the LHC.