DetectorConstruction.hh

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// This example is provided by the Geant4-DNA collaboration
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// Med. Phys. 37 (2010) 4692-4708
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#ifndef DetectorConstruction_h
#define DetectorConstruction_h 1

#include "G4VUserDetectorConstruction.hh"
#include "G4Box.hh"
#include "G4NistManager.hh"
#include "G4PVPlacement.hh"
#include "G4VisAttributes.hh"

class G4Region;
class DetectorMessenger;

class DetectorConstruction : public G4VUserDetectorConstruction
{
  public:

    DetectorConstruction();

    ~DetectorConstruction();

    G4VPhysicalVolume* Construct();
  
    void SetMaterial (G4String);            
    void UpdateGeometry();
                         
  private:
   
    G4double           fWorldSizeX;
    G4double           fWorldSizeY;
    G4double           fWorldSizeZ;

    G4VPhysicalVolume* fPhysiWorld;
    G4LogicalVolume*   fLogicWorld;  
    G4Box*             fSolidWorld;

    G4Material*        fWaterMaterial;

    void DefineMaterials();

    G4VPhysicalVolume* ConstructDetector();     
    DetectorMessenger* fDetectorMessenger;

};
#endif