chem2/src/DetectorConstruction.cc

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0025 //
0026 /// \file DetectorConstruction.cc
0027 /// \brief Implementation of the DetectorConstruction class
0028
0029 // This example is provided by the Geant4-DNA collaboration
0030 // Any report or published results obtained using the Geant4-DNA software
0031 // shall cite the following Geant4-DNA collaboration publication:
0032 // Med. Phys. 37 (2010) 4692-4708
0033 // J. Comput. Phys. 274 (2014) 841-882
0034 // The Geant4-DNA web site is available at http://geant4-dna.org
0035 //
0036 //
0037
0038 #include "DetectorConstruction.hh"
0039
0040 #include "G4Box.hh"
0041 #include "G4LogicalVolume.hh"
0042 #include "G4Material.hh"
0043 #include "G4NistManager.hh"
0044 #include "G4PVPlacement.hh"
0045 #include "G4ProductionCuts.hh"
0046 #include "G4SystemOfUnits.hh"
0047 #include "G4UserLimits.hh"
0048 #include "G4VPhysicalVolume.hh"
0049 #include "G4VisAttributes.hh"
0050
0051 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0052
0053 DetectorConstruction::DetectorConstruction() : G4VUserDetectorConstruction() {}
0054
0055 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0056
0057 DetectorConstruction::~DetectorConstruction() {}
0058
0059 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0060
0061 G4VPhysicalVolume* DetectorConstruction::Construct()
0062 {
0063   return ConstructDetector();
0064 }
0065
0066 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0067
0068 G4Material* DetectorConstruction::OtherMaterial(G4String materialName)
0069 {
0070   G4Material* material(0);
0071
0072   // Water is defined from NIST material database
0073   G4NistManager* man = G4NistManager::Instance();
0074   material = man->FindOrBuildMaterial(materialName);
0075   // If one wishes to test other density value for water material,
0076   // one should use instead:
0077   // G4Material * H2O = man->BuildMaterialWithNewDensity(
0078   // "G4_WATER_MODIFIED",
0079   // "G4_WATER",1000*g/cm/cm/cm);
0080   // Note: any string for "G4_WATER_MODIFIED" parameter is accepted
0081   // and "G4_WATER" parameter should not be changed
0082   // Both materials are created and can be selected from dna.mac
0083
0084   return material;
0085 }
0086
0087 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0088
0089 G4VPhysicalVolume* DetectorConstruction::ConstructDetector()
0090 {
0091   G4Material* water = OtherMaterial("G4_WATER");
0092
0093   // WORLD VOLUME
0094
0095   double worldSizeX = 2. * micrometer;
0096   double worldSizeY = worldSizeX;
0097   double worldSizeZ = worldSizeX;
0098
0099   G4Box* solidWorld = new G4Box("World",  // its name
0100                                 worldSizeX / 2, worldSizeY / 2, worldSizeZ / 2);  // its size
0101
0102   G4LogicalVolume* logicWorld = new G4LogicalVolume(solidWorld,  // its solid
0103                                                     water,  // its material
0104                                                     "World");  // its name
0105
0106   G4VPhysicalVolume* physiWorld = new G4PVPlacement(0,  // no rotation
0107                                                     G4ThreeVector(),  // at (0,0,0)
0108                                                     "World",  // its name
0109                                                     logicWorld,  // its logical volume
0110                                                     0,  // its mother  volume
0111                                                     false,  // no boolean operation
0112                                                     0);  // copy number
0113
0114   // Visualization attributes
0115   G4VisAttributes* worldVisAtt = new G4VisAttributes(G4Colour(0.0, 0.4, 0.8, 0.5));
0116   worldVisAtt->SetVisibility(true);
0117   logicWorld->SetVisAttributes(worldVisAtt);
0118
0119   return physiWorld;
0120 }