B4b/include/DetectorConstruction.hh

0001 //
0002 // ********************************************************************
0003 // * License and Disclaimer                                           *
0004 // *                                                                  *
0005 // * The  Geant4 software  is  copyright of the Copyright Holders  of *
0006 // * the Geant4 Collaboration.  It is provided  under  the terms  and *
0007 // * conditions of the Geant4 Software License,  included in the file *
0008 // * LICENSE and available at  http://cern.ch/geant4/license .  These *
0009 // * include a list of copyright holders.                             *
0010 // *                                                                  *
0011 // * Neither the authors of this software system, nor their employing *
0012 // * institutes,nor the agencies providing financial support for this *
0013 // * work  make  any representation or  warranty, express or implied, *
0014 // * regarding  this  software system or assume any liability for its *
0015 // * use.  Please see the license in the file  LICENSE  and URL above *
0016 // * for the full disclaimer and the limitation of liability.         *
0017 // *                                                                  *
0018 // * This  code  implementation is the result of  the  scientific and *
0019 // * technical work of the GEANT4 collaboration.                      *
0020 // * By using,  copying,  modifying or  distributing the software (or *
0021 // * any work based  on the software)  you  agree  to acknowledge its *
0022 // * use  in  resulting  scientific  publications,  and indicate your *
0023 // * acceptance of all terms of the Geant4 Software license.          *
0024 // ********************************************************************
0025 //
0026 /// \file DetectorConstruction.hh
0027 /// \brief Definition of the B4::DetectorConstruction class
0028
0029 #ifndef B4DetectorConstruction_h
0030 #define B4DetectorConstruction_h 1
0031
0032 #include "G4VUserDetectorConstruction.hh"
0033
0034 #include "G4Threading.hh"
0035 #include "globals.hh"
0036
0037 class G4VPhysicalVolume;
0038 class G4GlobalMagFieldMessenger;
0039
0040 namespace B4
0041 {
0042
0043 /// Detector construction class to define materials and geometry.
0044 /// The calorimeter is a box made of a given number of layers. A layer consists
0045 /// of an absorber plate and of a detection gap. The layer is replicated.
0046 ///
0047 /// Four parameters define the geometry of the calorimeter :
0048 ///
0049 /// - the thickness of an absorber plate,
0050 /// - the thickness of a gap,
0051 /// - the number of layers,
0052 /// - the transverse size of the calorimeter (the input face is a square).
0053 ///
0054 /// In addition a transverse uniform magnetic field is defined
0055 /// via G4GlobalMagFieldMessenger class.
0056
0057 class DetectorConstruction : public G4VUserDetectorConstruction
0058 {
0059   public:
0060     DetectorConstruction() = default;
0061     ~DetectorConstruction() override = default;
0062
0063   public:
0064     G4VPhysicalVolume* Construct() override;
0065     void ConstructSDandField() override;
0066
0067     // get methods
0068     //
0069     const G4VPhysicalVolume* GetAbsorberPV() const;
0070     const G4VPhysicalVolume* GetGapPV() const;
0071
0072   private:
0073     // methods
0074     //
0075     void DefineMaterials();
0076     G4VPhysicalVolume* DefineVolumes();
0077
0078     // data members
0079     //
0080     static G4ThreadLocal G4GlobalMagFieldMessenger* fMagFieldMessenger;
0081     // magnetic field messenger
0082
0083     G4VPhysicalVolume* fAbsorberPV = nullptr;  // the absorber physical volume
0084     G4VPhysicalVolume* fGapPV = nullptr;  // the gap physical volume
0085
0086     G4bool fCheckOverlaps = true;  // option to activate checking of volumes overlaps
0087 };
0088
0089 // inline functions
0090
0091 inline const G4VPhysicalVolume* DetectorConstruction::GetAbsorberPV() const
0092 {
0093   return fAbsorberPV;
0094 }
0095
0096 inline const G4VPhysicalVolume* DetectorConstruction::GetGapPV() const
0097 {
0098   return fGapPV;
0099 }
0100
0101 }  // namespace B4
0102
0103 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0104
0105 #endif