chem4/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 #include "DetectorConstruction.hh"
0038
0039 #include "PrimaryKiller.hh"
0040 #include "ScoreSpecies.hh"
0041
0042 #include "G4Box.hh"
0043 #include "G4LogicalVolume.hh"
0044 #include "G4MultiFunctionalDetector.hh"
0045 #include "G4NistManager.hh"
0046 #include "G4PSDoseDeposit.hh"
0047 #include "G4PSEnergyDeposit.hh"
0048 #include "G4PVPlacement.hh"
0049 #include "G4PhysicalConstants.hh"
0050 #include "G4SDManager.hh"
0051 #include "G4SystemOfUnits.hh"
0052 #include "G4VPrimitiveScorer.hh"
0053 #include "G4VisAttributes.hh"
0054
0055 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0056
0057 DetectorConstruction::DetectorConstruction() : G4VUserDetectorConstruction() {}
0058
0059 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0060
0061 DetectorConstruction::~DetectorConstruction() {}
0062
0063 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0064
0065 G4VPhysicalVolume* DetectorConstruction::Construct()
0066 {
0067   // Water is defined from NIST material database
0068   G4NistManager* man = G4NistManager::Instance();
0069   G4Material* water = man->FindOrBuildMaterial("G4_WATER");
0070
0071   //
0072   // World
0073   //
0074   double world_sizeXYZ = 1. * kilometer;
0075
0076   G4Box* solidWorld =
0077     new G4Box("World", 0.5 * world_sizeXYZ, 0.5 * world_sizeXYZ, 0.5 * world_sizeXYZ);
0078
0079   G4LogicalVolume* logicWorld = new G4LogicalVolume(solidWorld, water, "World");
0080
0081   G4VPhysicalVolume* physWorld = new G4PVPlacement(0,  // no rotation
0082                                                    G4ThreeVector(),  // its position at (0,0,0)
0083                                                    logicWorld,  // its logical volume
0084                                                    "World",  // its name
0085                                                    0,  // its mother  volume
0086                                                    false,  // no boolean operation
0087                                                    0,  // copy number
0088                                                    true);  // checking overlaps
0089
0090   // Visualization attributes
0091   G4VisAttributes* worldVisAtt = new G4VisAttributes(G4Colour(.5, 1.0, .5));
0092   worldVisAtt->SetVisibility(true);
0093   logicWorld->SetVisAttributes(worldVisAtt);
0094
0095   // always return the physical World
0096   return physWorld;
0097 }
0098
0099 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0100
0101 void DetectorConstruction::ConstructSDandField()
0102 {
0103   G4SDManager::GetSDMpointer()->SetVerboseLevel(1);
0104
0105   // declare World as a MultiFunctionalDetector scorer
0106   //
0107   G4MultiFunctionalDetector* mfDetector = new G4MultiFunctionalDetector("mfDetector");
0108
0109   //--
0110   // Kill primary track after a chosen energy loss OR under a chosen
0111   // kinetic energy
0112   PrimaryKiller* primaryKiller = new PrimaryKiller("PrimaryKiller");
0113   primaryKiller->SetMinLossEnergyLimit(500. * eV);  // default value
0114   primaryKiller->SetMaxLossEnergyLimit(1. * eV);  // default value
0115   mfDetector->RegisterPrimitive(primaryKiller);
0116
0117   //--
0118   // Record Species scorer:
0119   //  - scores number of species over time
0120   //  - score the total energy deposition
0121   //  - compute the radiochemical yields (G values)
0122   G4VPrimitiveScorer* primitivSpecies = new ScoreSpecies("Species");
0123   mfDetector->RegisterPrimitive(primitivSpecies);
0124   G4SDManager::GetSDMpointer()->AddNewDetector(mfDetector);
0125   SetSensitiveDetector("World", mfDetector);
0126 }