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Geant4/examples/extended/biasing/GB02/src/GB02DetectorConstruction.cc

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  1 //
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 25 //
 26 /// \file GB02/src/GB02DetectorConstruction.cc
 27 /// \brief Implementation of the GB02DetectorConstruction class
 28 //
 29 #include "GB02DetectorConstruction.hh"
 30 
 31 #include "GB02BOptrMultiParticleForceCollision.hh"
 32 
 33 #include "G4Box.hh"
 34 #include "G4LogicalVolume.hh"
 35 #include "G4LogicalVolumeStore.hh"
 36 #include "G4Material.hh"
 37 #include "G4NistManager.hh"
 38 #include "G4PVPlacement.hh"
 39 #include "G4SystemOfUnits.hh"
 40 
 41 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 42 
 43 GB02DetectorConstruction::GB02DetectorConstruction() {}
 44 
 45 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 46 
 47 GB02DetectorConstruction::~GB02DetectorConstruction() {}
 48 
 49 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 50 
 51 G4VPhysicalVolume* GB02DetectorConstruction::Construct()
 52 {
 53   G4Material* worldMaterial = G4NistManager::Instance()->FindOrBuildMaterial("G4_Galactic");
 54   G4Material* defaultMaterial = G4NistManager::Instance()->FindOrBuildMaterial("G4_lN2");
 55 
 56   G4VSolid* solidWorld = new G4Box("World", 10 * m, 10 * m, 10 * m);
 57 
 58   G4LogicalVolume* logicWorld = new G4LogicalVolume(solidWorld,  // its solid
 59                                                     worldMaterial,  // its material
 60                                                     "World");  // its name
 61 
 62   G4PVPlacement* physiWorld = new G4PVPlacement(0,  // no rotation
 63                                                 G4ThreeVector(),  // at (0,0,0)
 64                                                 logicWorld,  // its logical volume
 65                                                 "World",  // its name
 66                                                 0,  // its mother  volume
 67                                                 false,  // no boolean operation
 68                                                 0);  // copy number
 69 
 70   // -----------------------------------
 71   // -- volume where biasing is applied:
 72   // -----------------------------------
 73   G4double halfZ = 10 * cm;
 74   G4VSolid* solidTest = new G4Box("test.solid", 1 * m, 1 * m, halfZ);
 75 
 76   G4LogicalVolume* logicTest = new G4LogicalVolume(solidTest,  // its solid
 77                                                    defaultMaterial,  // its material
 78                                                    "test.logical");  // its name
 79 
 80   new G4PVPlacement(0,  // no rotation
 81                     G4ThreeVector(0, 0, halfZ),  // volume entrance at (0,0,0)
 82                     logicTest,  // its logical volume
 83                     "test.phys",  // its name
 84                     logicWorld,  // its mother  volume
 85                     false,  // no boolean operation
 86                     0);  // copy number
 87 
 88   return physiWorld;
 89 }
 90 
 91 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 92 
 93 void GB02DetectorConstruction::ConstructSDandField()
 94 {
 95   // -- Fetch volume for biasing:
 96   G4LogicalVolume* logicTest = G4LogicalVolumeStore::GetInstance()->GetVolume("test.logical");
 97 
 98   // ----------------------------------------------
 99   // -- operator creation and attachment to volume:
100   // ----------------------------------------------
101   GB02BOptrMultiParticleForceCollision* testMany = new GB02BOptrMultiParticleForceCollision();
102   testMany->AddParticle("gamma");
103   testMany->AddParticle("neutron");
104   testMany->AttachTo(logicTest);
105   G4cout << " Attaching biasing operator " << testMany->GetName() << " to logical volume "
106          << logicTest->GetName() << G4endl;
107 }
108 
109 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
110