B4DetectorConstruction.hh

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// $Id$
// 

#ifndef B4DetectorConstruction_h
#define B4DetectorConstruction_h 1

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

class G4Box;
class G4VPhysicalVolume;
class G4UniformMagField;
class G4GenericMessenger;



class B4DetectorConstruction : public G4VUserDetectorConstruction
{
  public:
    B4DetectorConstruction();
    virtual ~B4DetectorConstruction();

  public:
    virtual G4VPhysicalVolume* Construct();

    // set methods
    //
    void SetMagField(G4double fieldValue);
    
    // get methods
    //
    const G4VPhysicalVolume* GetAbsorberPV() const;
    const G4VPhysicalVolume* GetGapPV() const;
     
  private:
    // methods
    //
    void DefineMaterials();
    G4VPhysicalVolume* DefineVolumes();
  
    // data members
    //
    G4GenericMessenger*  fMessenger; // messenger 
    G4UniformMagField*   fMagField;  // magnetic field
    
    G4VPhysicalVolume* fAbsorberPV; // the absorber physical volume
    G4VPhysicalVolume* fGapPV;      // the gap physical volume
    
    G4bool  fCheckOverlaps; // option to activate checking of volumes overlaps
};

// inline functions

inline const G4VPhysicalVolume* B4DetectorConstruction::GetAbsorberPV() const { 
  return fAbsorberPV; 
}

inline const G4VPhysicalVolume* B4DetectorConstruction::GetGapPV() const  { 
  return fGapPV; 
}
     

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#endif