clustering/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 // The Geant4-DNA web site is available at http://geant4-dna.org
0034 //
0035 //
0036
0037 #include "DetectorConstruction.hh"
0038
0039 #include "G4Box.hh"
0040 #include "G4NistManager.hh"
0041 #include "G4PVPlacement.hh"
0042 #include "G4RunManager.hh"
0043 #include "G4SystemOfUnits.hh"
0044 #include "G4VPhysicalVolume.hh"
0045 #include "G4VisAttributes.hh"
0046
0047 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0048
0049 DetectorConstruction::DetectorConstruction() : fpDefaultMaterial(0), fpWaterMaterial(0) {}
0050
0051 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0052
0053 DetectorConstruction::~DetectorConstruction() {}
0054
0055 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0056
0057 G4VPhysicalVolume* DetectorConstruction::Construct()
0058 {
0059   DefineMaterials();
0060   return ConstructVolumes();
0061 }
0062
0063 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0064
0065 void DetectorConstruction::DefineMaterials()
0066 {
0067   G4NistManager* nistManager = G4NistManager::Instance();
0068
0069   nistManager->FindOrBuildMaterial("G4_WATER", false);
0070   fpWaterMaterial = G4Material::GetMaterial("G4_WATER");
0071
0072   nistManager->FindOrBuildMaterial("G4_AIR", false);
0073   fpDefaultMaterial = G4Material::GetMaterial("G4_AIR");
0074 }
0075
0076 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0077
0078 G4VPhysicalVolume* DetectorConstruction::ConstructVolumes()
0079 {
0080   // World
0081   G4double worldSize = 2 * micrometer;
0082
0083   G4Box* solidWorld = new G4Box("World", worldSize / 2., worldSize / 2., worldSize / 2.);
0084   G4LogicalVolume* logicWorld = new G4LogicalVolume(solidWorld, fpDefaultMaterial, "World");
0085   G4VPhysicalVolume* physiWorld =
0086     new G4PVPlacement(0, G4ThreeVector(), "World", logicWorld, 0, false, 0);
0087   // Target Box
0088   // from Francis et al. Comput. Meth. Programs. Biomed. 2011 101(3)
0089   G4double targetSizeXY = 1 * micrometer;
0090   G4double targetSizeZ = 0.5 * micrometer;
0091
0092   G4Box* solidTarget = new G4Box("Target", targetSizeXY / 2., targetSizeXY / 2., targetSizeZ / 2.);
0093   G4LogicalVolume* logicTarget = new G4LogicalVolume(solidTarget, fpWaterMaterial, "Target");
0094   new G4PVPlacement(0, G4ThreeVector(), "Target", logicTarget, physiWorld, false, 0);
0095
0096   // Visualization attributes
0097   G4VisAttributes* worldVisAtt = new G4VisAttributes(G4Colour(1.0, 1.0, 1.0));
0098   worldVisAtt->SetVisibility(true);
0099   logicWorld->SetVisAttributes(worldVisAtt);
0100
0101   G4VisAttributes* targetVisAtt = new G4VisAttributes(G4Colour(0.0, 1.0, 0.0));
0102   targetVisAtt->SetVisibility(true);
0103   targetVisAtt->SetForceAuxEdgeVisible(true);
0104   logicTarget->SetVisAttributes(targetVisAtt);
0105
0106   // always return the world volume
0107   return physiWorld;
0108 }