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May 21 – 26, 2017
Beijing International Convention Center
Asia/Shanghai timezone

Characterisation of the Hamamatsu silicon photomultiplier arrays for the LHCb Scintillating Fibre Tracker Upgrade

May 23, 2017, 9:00 AM
Room 307 (Beijing International Convention Center)

Room 307

Beijing International Convention Center

No.8 Beichen Dong Road, Chaoyang District, Beijing P. R. China 100101
oral Photon detectors R4-Photon detectors(2)


Axel Kuonen (Ã)


In the context of the LHCb detector upgrade, during the long shutdown of LHC (2019/2020), the complete tracking system will be replaced to cope with the increased luminosity and trigger less readout scheme. A large area (300m^2) scintillating fibre tracker (SciFi) with more than 500K channels and 250um readout pitch is under construction. The silicon photomultiplier used for the read-out provide high photon detection efficiency, low correlated noise (optical cross-talk and after-pulse), short recovery time and withstand a high neutron fluence. The Hamamatsu photo-detectors selected in November 2016 have been characterised before and after irradiation with neutrons and protons. We will focus in this talk on the study of the performance of these devices in the context of the LHCb SciFi application regarding the single photon detection capability after irradiation.

Primary author

Presentation materials