Monte carlo simulation of MPPC photosensors for the T2K experiment

Abstract

A Monte Carlo model of the MPPC photosensor has been developed by the T2K-ND280 collaboration, forming part of the detector readout chain simulation. This model incorporates all device features, including dark noise, crosstalk, afterpulsing and saturation, and also includes recovery effects specific to the ND280 front-end readout circuit. Simulation parameters have been tuned using the results of characterization measurements made by the collaboration. This talk outlines the framework and physics models used in the simulation. Results from the Monte Carlo are compared to data.