OPSimTool: A custom tool for optical photon simulation in Geant4

This paper introduces OPSimTool, a set of additions to the Geant4 toolkit that simplify the development of optical photon applications and enhance the flexibility and maintainability of developed applications. The tool also provides interfaces for creating reusable and portable material build code. This tool has been developed according to users' needs and perspectives, considering frequently asked questions, most encountered challenges, and evolving needs over time in the optical category of the Geant4 official forum page.本文介绍了OPSimTool，一款针对Geant4工具包的扩展组件集，可简化光学光子类应用的开发流程，并提升已开发应用的灵活性与可维护性。该工具还提供了用于构建可复用、可移植的材料构建代码的接口。本工具的开发基于用户的实际需求与使用视角，充分考量了Geant4官方论坛光学板块中常见的咨询问题、高发难题，以及该板块随时间推移而不断演化的新需求。