Dependence of Low Gain Avalanche Detectors performance on neutron flux

摘要

A set of Low Gain Avalanche Detectors from Hamamatsu Photonics were irradiated with different neutron fluxes to an integrated fluence of 4·10~(14) cm~(-2) neutron equivalent. The range of neutron fluxes covered was from 10~(10) cm~(-2) s~(-1) to around 4.5·10~(15) cm~(-2) s~(-1). The gain layer and bulk depletion voltage as well as charge collection and timing performance were measured after 80 min at 60°C annealing point. The irradiation induced damage was not observed to be dependent on the neutron flux.