clustering/src/DetectorConstruction.cc

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0029 // Med. Phys. 37 (2010) 4692-4708
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0032 //
0033 /// \file DetectorConstruction.cc
0034 /// \brief Implementation of the DetectorConstruction class
0035
0036 #include "DetectorConstruction.hh"
0037
0038 #include "G4Box.hh"
0039 #include "G4NistManager.hh"
0040 #include "G4PVPlacement.hh"
0041 #include "G4RunManager.hh"
0042 #include "G4SystemOfUnits.hh"
0043 #include "G4VPhysicalVolume.hh"
0044 #include "G4VisAttributes.hh"
0045
0046 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0047
0048 DetectorConstruction::DetectorConstruction() : fpDefaultMaterial(0), fpWaterMaterial(0) {}
0049
0050 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0051
0052 DetectorConstruction::~DetectorConstruction() {}
0053
0054 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0055
0056 G4VPhysicalVolume* DetectorConstruction::Construct()
0057 {
0058   DefineMaterials();
0059   return ConstructVolumes();
0060 }
0061
0062 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0063
0064 void DetectorConstruction::DefineMaterials()
0065 {
0066   G4NistManager* nistManager = G4NistManager::Instance();
0067
0068   nistManager->FindOrBuildMaterial("G4_WATER", false);
0069   fpWaterMaterial = G4Material::GetMaterial("G4_WATER");
0070
0071   nistManager->FindOrBuildMaterial("G4_AIR", false);
0072   fpDefaultMaterial = G4Material::GetMaterial("G4_AIR");
0073 }
0074
0075 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0076
0077 G4VPhysicalVolume* DetectorConstruction::ConstructVolumes()
0078 {
0079   // World
0080   G4double worldSize = 2 * micrometer;
0081
0082   G4Box* solidWorld = new G4Box("World", worldSize / 2., worldSize / 2., worldSize / 2.);
0083   G4LogicalVolume* logicWorld = new G4LogicalVolume(solidWorld, fpDefaultMaterial, "World");
0084   G4VPhysicalVolume* physiWorld =
0085     new G4PVPlacement(0, G4ThreeVector(), "World", logicWorld, 0, false, 0);
0086   // Target Box
0087   // from Francis et al. Comput. Meth. Programs. Biomed. 2011 101(3)
0088   G4double targetSizeXY = 1 * micrometer;
0089   G4double targetSizeZ = 0.5 * micrometer;
0090
0091   G4Box* solidTarget = new G4Box("Target", targetSizeXY / 2., targetSizeXY / 2., targetSizeZ / 2.);
0092   G4LogicalVolume* logicTarget = new G4LogicalVolume(solidTarget, fpWaterMaterial, "Target");
0093   new G4PVPlacement(0, G4ThreeVector(), "Target", logicTarget, physiWorld, false, 0);
0094
0095   // Visualization attributes
0096   G4VisAttributes* worldVisAtt = new G4VisAttributes(G4Colour(1.0, 1.0, 1.0));
0097   worldVisAtt->SetVisibility(true);
0098   logicWorld->SetVisAttributes(worldVisAtt);
0099
0100   G4VisAttributes* targetVisAtt = new G4VisAttributes(G4Colour(0.0, 1.0, 0.0));
0101   targetVisAtt->SetVisibility(true);
0102   targetVisAtt->SetForceAuxEdgeVisible(true);
0103   logicTarget->SetVisAttributes(targetVisAtt);
0104
0105   // always return the world volume
0106   return physiWorld;
0107 }