GEANT4 simulation and spectrum restoration of a scintillator detector excited by ultraviolet light-emitting diodes pixelated X-ray detector

Abstract

We perform a detailed simulation of a pixelated CdTe detector using the GEANT4 toolkit completed with a custom code emulating the detector’s electronic response. We demonstrate that a measured tungsten X-ray spectrum can be majorly restored back to the original incident spectrum using the developed model, without requiring the dedicated hardware charge sharing correction.