Speaker
Description
The High Energy cosmic-Radiation Detection (HERD) facility onboard China’s Space Station is planned for operation starting around 2025 for about 10 years. The application of the scintillating fiber tracker with silicon photomultiplier(SiPM) read-out as HERD tracker subsystem is proposed by the UniGE group. Different fiber tracker modules were developed and tested with the CERN SPS beam. An optical simulation of a single fiber mat has also been developed based on the Geant4 toolkit. It takes into account the characteristics of fibers, SiPMs, and electronics, in particular, light yield, SiPM’s photon detection efficiency, thermal noise, cross-talk and the clustering. The simulation was compared to the results of the prototype beamtest, and cross-checks in cluster charge and hit efficiency have been conducted.
