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// $Id: DetectorConstruction.hh,v 1.6 2006/06/29 16:54:31 gunter Exp $
// GEANT4 tag $Name:  $
//
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#ifndef DetectorConstruction_h
#define DetectorConstruction_h 1

#include "G4VUserDetectorConstruction.hh"
#include "G4LogicalVolume.hh"
#include "globals.hh"

class G4Box;
class G4VPhysicalVolume;
class G4Material;
class G4MaterialCutsCouple;
class G4UniformMagField;
class DetectorMessenger;

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class DetectorConstruction : public G4VUserDetectorConstruction
{
  public:

    DetectorConstruction();
   ~DetectorConstruction();

  public:

     void SetAbsorberMaterial (G4String);
     void SetAbsorberThickness(G4double);
     void SetAbsorberSizeYZ   (G4double);

     void SetAbsorberXpos(G4double);

     void SetWorldMaterial(G4String);
     void SetWorldSizeX   (G4double);
     void SetWorldSizeYZ  (G4double);

     void SetMagField(G4double);

     G4VPhysicalVolume* Construct();

     void UpdateGeometry();

  public:

     void PrintCalorParameters();

     G4Material* GetAbsorberMaterial()  {return AbsorberMaterial;};	     
     G4double    GetAbsorberThickness() {return AbsorberThickness;};
     G4double    GetAbsorberSizeYZ()    {return AbsorberSizeYZ;};

     G4double    GetAbsorberXpos()      {return XposAbs;};
     G4double    GetxstartAbs()         {return xstartAbs;};
     G4double    GetxendAbs()           {return xendAbs;};

     G4Material* GetWorldMaterial()     {return WorldMaterial;};
     G4double    GetWorldSizeX()        {return WorldSizeX;};
     G4double    GetWorldSizeYZ()       {return WorldSizeYZ;};

     const G4VPhysicalVolume* GetphysiWorld() {return physiWorld;};
     const G4VPhysicalVolume* GetAbsorber()   {return physiAbsorber;};
     const G4MaterialCutsCouple* GetAbsorbMaterialCut()  const
                             {return logicAbsorber->GetMaterialCutsCouple();};
  private:

     G4Material*        AbsorberMaterial;
     G4double           AbsorberThickness;
     G4double           AbsorberSizeYZ;

     G4double           XposAbs;
     G4double           xstartAbs, xendAbs;

     G4Material*        WorldMaterial;
     G4double           WorldSizeX;
     G4double           WorldSizeYZ;

     G4bool             defaultWorld;

     G4Box*             solidWorld;
     G4LogicalVolume*   logicWorld;
     G4VPhysicalVolume* physiWorld;

     G4Box*             solidAbsorber;
     G4LogicalVolume*   logicAbsorber;
     G4VPhysicalVolume* physiAbsorber;

     G4UniformMagField* magField;
     
     DetectorMessenger* detectorMessenger;
      
  private:
    
     void DefineMaterials();
     void ComputeCalorParameters();
     G4VPhysicalVolume* ConstructCalorimeter();     
};

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#endif