MCPSim: A Geant4-based generic simulation toolkit for electron multipliers represented by Microchannel Plate

TL;DR

MCPSim is a versatile, Geant4-based simulation toolkit for electron multipliers like MCPs, supporting complex geometries and electromagnetic fields, aiding design and optimization in various scientific fields.

Contribution

The paper introduces MCPSim, a novel, flexible simulation toolkit that integrates CAD import and electromagnetic field support for electron multipliers, enhancing existing simulation capabilities.

Findings

Good agreement with experimental measurements

Supports complex geometries and electromagnetic fields

Simulates a wide range of particle processes

Abstract

The simulation of the instruments based on the cascade multiplication of electrons has always been an important and challenging subject in no matter high energy physics, astrophysics, radiography and other fields. In this work, a generic simulation toolkit is developed based on Geant4, ROOT and CADMesh toolkits for the electron multipliers based on the emission process of secondary electrons, especially for Microchannel Plate (MCP). Geometry of instruments can be directly imported by standard CAD files and multiple kinds of electromagnetic fields are supported. MCPSim is capable for simulating the general hadronic, weak and electromagnetic processes together with secondary electron emission, which provides a wider range of applications. Users are able to configure the simulation and define the output information by a simple textfile. By comparing with experimental measurements, good agreement is found. MCPSim is expected to guide the design and optimization of such electron multipliers and will be continuously developed and maintained to better satisfy the present and future requirements.