DetectorConstruction.hh

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#ifndef DetectorConstruction_h
#define DetectorConstruction_h 1

#include "G4VUserDetectorConstruction.hh"
#include "G4LogicalVolume.hh"
#include "globals.hh"
#include "G4Cache.hh"

class G4Box;
class G4VPhysicalVolume;
class G4Material;
class G4MaterialCutsCouple;
class G4UniformMagField;
class DetectorMessenger;
class G4GlobalMagFieldMessenger;

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class DetectorConstruction : public G4VUserDetectorConstruction
{
public:

  DetectorConstruction();
  ~DetectorConstruction();

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

  void SetAbsorberXpos(G4double);

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

  void SetMagField(G4double);

  virtual G4VPhysicalVolume* Construct();
  virtual void ConstructSDandField();

  void PrintGeomParameters();

  const G4Material* GetAbsorberMaterial() const {return fAbsorberMaterial;};
  G4double GetAbsorberThickness() const         {return fAbsorberThickness;};
  G4double GetAbsorberSizeYZ() const            {return fAbsorberSizeYZ;};

  G4double GetAbsorberXpos() const              {return fXposAbs;};
  G4double GetxstartAbs() const                 {return fXstartAbs;};
  G4double GetxendAbs() const                   {return fXendAbs;};

  const G4Material* GetWorldMaterial() const    {return fWorldMaterial;};
  G4double GetWorldSizeX() const                {return fWorldSizeX;};

  const G4VPhysicalVolume* GetAbsorber() const  {return fPhysiAbsorber;};

private:

  void DefineMaterials();
  void ComputeGeomParameters();
  void ChangeGeometry();

  G4Material*        fAbsorberMaterial;
  G4double           fAbsorberThickness;
  G4double           fAbsorberSizeYZ;

  G4double           fXposAbs;
  G4double           fXstartAbs, fXendAbs;

  G4Material*        fWorldMaterial;
  G4double           fWorldSizeX;
  G4double           fWorldSizeYZ;

  G4bool             fDefaultWorld;

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

  G4Box*             fSolidAbsorber;
  G4LogicalVolume*   fLogicAbsorber;
  G4VPhysicalVolume* fPhysiAbsorber;
     
  DetectorMessenger* fDetectorMessenger;
  G4Cache<G4GlobalMagFieldMessenger*> fFieldMessenger;
};

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#endif