Publication
The Scintillating Fibre (SciFi) tracker has been operated in the current LHCb experiment layout since 2022 and will continue to take data until 2030. The high radiation environment damages the detector components and reduces the overall light yield, degrading the hit efficiency. Moreover, LHCb Upgrade II will see the addition of timing information in different sub-detectors, with the need of an adequate amount of detected light to ensure the requested performance. Microlens-enhanced Silicon PhotoMultipliers (SiPMs) allow to improve photon detection efficiency in the SciFi tracker upgrade. Results show an improvement in both Single Photon Time Resolution and SciFi time resolution, when compared to conventional coated SiPMs, due to higher light collection efficiency.