Validation of Geant4 Simulation and Digitization of a SiPM-on-Tile System

Physics of Atomic Nuclei - The increase of transverse segmentation is a trend in developments of modern calorimeter systems based on different technologies. The scintillator calorimeters assembled...     

Detector Effects on the Response of a Highly Granular Hadron Calorimeter to Single Hadrons

In the detectors currently being developed for experiments on the next-generation lepton colliders, highly granular calorimeters are to be used. In particular, the hadron calorimeter is planned to be assembled from scintillation cells with direct readout of light by silicon photomultipliers. According to the results of experimental measurements of the light collection in a cell developed for the CALICE prototype hadron calorimeter, when detecting minimum ionizing particles, an estimate of the detector effects was obtained. The detector effect on the resolution of the ILD hadron calorimeter was studied by modeling the response of the detector to single neutral kaons. It was shown that the contribution of experimentally measured detector effects to the resolution for single particles is on the order of 0.5–1% in the range of hadron energy of 5–60 GeV.     

Study of the Response Uniformity of Scintillator Tiles for Highly Granular Calorimeters

A modern trend in calorimetry is an increase in calorimeter granularity. A high-granularity hadron calorimeter assembled from scintillator tiles with signal readout by silicon photomultipliers is developed and tested by the CALICE collaboration. The uniformity of the tile response to minimum ionizing particles is studied, and these experimental measurements are compared with simulation based on the Geant4 package.