B4a/include/DetectorConstruction.hh

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0027 /// \file B4/B4a/include/DetectorConstruction.hh
0028 /// \brief Definition of the B4::DetectorConstruction class
0029
0030 #ifndef B4DetectorConstruction_h
0031 #define B4DetectorConstruction_h 1
0032
0033 #include "G4VUserDetectorConstruction.hh"
0034
0035 #include "G4Threading.hh"
0036 #include "globals.hh"
0037
0038 class G4VPhysicalVolume;
0039 class G4GlobalMagFieldMessenger;
0040
0041 namespace B4
0042 {
0043
0044 /// Detector construction class to define materials and geometry.
0045 /// The calorimeter is a box made of a given number of layers. A layer consists
0046 /// of an absorber plate and of a detection gap. The layer is replicated.
0047 ///
0048 /// Four parameters define the geometry of the calorimeter :
0049 ///
0050 /// - the thickness of an absorber plate,
0051 /// - the thickness of a gap,
0052 /// - the number of layers,
0053 /// - the transverse size of the calorimeter (the input face is a square).
0054 ///
0055 /// In addition a transverse uniform magnetic field is defined
0056 /// via G4GlobalMagFieldMessenger class.
0057
0058 class DetectorConstruction : public G4VUserDetectorConstruction
0059 {
0060   public:
0061     DetectorConstruction() = default;
0062     ~DetectorConstruction() override = default;
0063
0064   public:
0065     G4VPhysicalVolume* Construct() override;
0066     void ConstructSDandField() override;
0067
0068     // get methods
0069     //
0070     const G4VPhysicalVolume* GetAbsorberPV() const;
0071     const G4VPhysicalVolume* GetGapPV() const;
0072
0073   private:
0074     // methods
0075     //
0076     void DefineMaterials();
0077     G4VPhysicalVolume* DefineVolumes();
0078
0079     // data members
0080     //
0081     static G4ThreadLocal G4GlobalMagFieldMessenger* fMagFieldMessenger;
0082     // magnetic field messenger
0083
0084     G4VPhysicalVolume* fAbsorberPV = nullptr;  // the absorber physical volume
0085     G4VPhysicalVolume* fGapPV = nullptr;  // the gap physical volume
0086
0087     G4bool fCheckOverlaps = true;  // option to activate checking of volumes overlaps
0088 };
0089
0090 // inline functions
0091
0092 inline const G4VPhysicalVolume* DetectorConstruction::GetAbsorberPV() const
0093 {
0094   return fAbsorberPV;
0095 }
0096
0097 inline const G4VPhysicalVolume* DetectorConstruction::GetGapPV() const
0098 {
0099   return fGapPV;
0100 }
0101
0102 }  // namespace B4
0103
0104 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0105
0106 #endif