Speaker
Description
Many experiments use Resistive Plate Chambers operated in avalanche mode, as timing or tracking charged-particle detector. Monte-Carlo simulation of physical processes is an important tool for detector development as it allows to predict signal pulse amplitude and timing, time resolution, efficiency and so on. Simulations for RPC-like detector are not widespread, and most of the time they use distributions like the Polya which lacks some physical interpretation or overlook important physics processes. We present a full, fast and multi-threaded Monte-Carlo simulation for Resistive Plate Chambers, using existing and well tested libraries and framework. The procedure is based on the modelisation of the main physics processes occurring during an electronic avalanche initiated by through-going charged particle. We use a one-dimension model for the avalanche development extended by the inclusion of radial diffusion and space charge effects which are of capital importance concerning the simulated charges production and saturation inside a RPC. This "hybrid" model is a compromise between the execution-speed of a 1D simulation and the accuracy of a 2D model. This simulation is well suited for study of single-gap RPC, and can be used for basic study of multi-gap RPC by simply piling up several single-gap geometries. It was also developed to be portable, modifiable and usable on various hardware and can be easily integrated into a global simulation of a detector chain.
