| TAlphaRad_DetectorConstruction | For compilation reason |
| TAlphaRad_DetectorConstruction_Messenger | |
| TAlphaRad_PhysicsList | For compilation reason |
| TAlphaRad_PhysicsList_Messenger | |
| TDummy_EventAction | |
| TDummy_RunAction | |
| TDummy_SteppingAction | |
| TGPS_PrimaryGeneratorAction | |
| TMyRootEvent | Class must derive from TObject to be put in a tree |
| TStandard_Analysis | For compilation reason |
| TStandard_Analysis_Messenger | |
| TStandard_Hit | |
| TStandard_SD |