DetectorConstruction0.hh

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#ifndef DetectorConstruction0_h
#define DetectorConstruction0_h 1

#include "G4VUserDetectorConstruction.hh"
#include "G4ThreeVector.hh"
#include "CLHEP/Units/SystemOfUnits.h"

class G4LogicalVolume;
class G4Material;
class G4GenericMessenger;


class DetectorConstruction0 : public G4VUserDetectorConstruction
{
  public:
    DetectorConstruction0(
       const G4String& materialName = "G4_AIR",
       G4double hx = 50*CLHEP::cm, 
       G4double hy = 50*CLHEP::cm, 
       G4double hz = 50*CLHEP::cm);
    ~DetectorConstruction0();

  public:
    // methods from base class 
    virtual G4VPhysicalVolume* Construct();

    // set methods
    void  SetMaterial(const G4String& materialName);
    void  SetDimensions(G4ThreeVector dimensions);
                       
  private:
    void DefineCommands();

    G4GenericMessenger*  fMessenger; 
    G4String             fMaterialName;
    G4ThreeVector        fDimensions;
    G4LogicalVolume*     fWorldVolume;  
};

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#endif