I’m kind of new user of Geant4 and I need to use this tool to simulate processes inside my detector. I understand that the first step would be to build the geometry of my detector which I’ve done so far. But then, there are comes a tones of classes of G4 which I have no idea what role they play. If you please point a finger where I can find the comprehensive but step-by-step materials where explanations are given? But please, don’t tell me to use heavy user guide, for me it’s bit unfortunate.
I’ve created my geometry, then what should I do? How can I retrieve the information? Which classes, methods can be used?