38 #ifndef DetectorConstruction_h
39 #define DetectorConstruction_h 1
G4VPhysicalVolume * Construct()
G4Material * fpWaterMaterial
G4VPhysicalVolume * fpPhysiWorld
G4LogicalVolume * fpLogicWorld
G4VPhysicalVolume * ConstructDetector()
G4Material * fpTHFMaterial
Simple detector construction with a box volume placed in a world.