examples/extended/electromagnetic/TestEm8/include/DetectorConstruction.hh

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// $Id: DetectorConstruction.hh 106960 2017-10-31 08:35:19Z gcosmo $
//
//
// TestEm8: Gaseous detector
//
// Created: 31.08.2010 V.Ivanchenko on base of V.Grichine code
//
// Modified:
//
// 

#ifndef DetectorConstruction_h
#define DetectorConstruction_h 1

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

class G4Material;
class G4Region;
class DetectorMessenger;
class TargetSD;
class G4Tubs;
class G4VPhysicalVolume;
class G4LogicalVolume;
class G4ProductionCuts;

class DetectorConstruction : public G4VUserDetectorConstruction
{
public:
  
  DetectorConstruction();
  virtual ~DetectorConstruction();
     
  virtual G4VPhysicalVolume* Construct();
  virtual void ConstructSDandField();

  void SetGasMaterial (const G4String&);     
  void SetContainerMaterial (const G4String&);     
  void SetWorldMaterial(const G4String&);

  void SetGasThickness(G4double);     
  void SetGasRadius(G4double);          
  void SetContainerThickness(G4double);     

  void SetPairEnergy(G4double);

  inline G4VPhysicalVolume* GetWorldPhysVol() const { return fPhysWorld; }
  inline void SetMaxChargedStep(G4double x) { fMaxStep = x; }
  inline G4double GetMaxChargedStep() const { return fMaxStep; }
      
private:

  void DefineMaterials();
  void ChangeGeometry();

  G4Material*        fGasMat;
  G4double           fGasThickness;
  G4double           fGasRadius;
  G4double           fMaxStep;

  G4Material*        fWindowMat;
  G4double           fWindowThick;

  G4Material*        fWorldMaterial;

  G4Tubs*            fSolidWorld;
  G4Tubs*            fSolidContainer;
  G4Tubs*            fSolidDetector;
            
  G4VPhysicalVolume* fPhysWorld;
  G4LogicalVolume*   fLogicWorld;
  G4LogicalVolume*   fLogicContainer;
  G4LogicalVolume*   fLogicDetector;

  DetectorMessenger* fDetectorMessenger;  
  G4ProductionCuts*  fGasDetectorCuts;
  G4Region*          fRegGasDet;

};

#endif