Speaker
Esteban Curras Rivera
(EPFL - Ecole Polytechnique Federale Lausanne (CH))
Description
The current tracker detector of the LHCb experiment, based on Scintillating Fibres (SciFi) coupled to silicon photomultipliers (SiPMs), will be upgraded for the HL-LHC operations. The SiPMs will be exposed to a radiation environment, mainly dominated by fast neutrons, that will reach 3E12 neq/cm2 at the end of their lifetime. This will degrade their performance and compromise the overall efficiency of the whole experiment. To cope with this problem, cryogenic cooling with liquid Nitrogen is being investigated as a possible solution to mitigate the performance degradation of the SiPMs induced by radiation damage. The effect of the cryogenic operation on key parameters of neutron-irradiated SiPMs is going to be presented.
Primary authors
Esteban Curras Rivera
(EPFL - Ecole Polytechnique Federale Lausanne (CH))
Guido Haefeli
(EPFL - Ecole Polytechnique Federale Lausanne (CH))
