Gamos: A framework to do Geant4 simulations in different physics fields with an user-friendly interface

Abstract G amos is a software system for G eant 4-based simulation. It comprises a framework, a set of components providing functionality to simulation applications on top of the G eant 4 toolkit, and a collection of ready-made applications. It allows to perform G eant 4-based simulations using a scripting language, without requiring the writing of C++ code. Moreover, G amos design allows the extension of the existing functionality through user-supplied C++ classes. The main characteristics of G amos and its embedded functionality are described.