chem4/src/DetectorConstruction.cc

0001 //
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0024 // ********************************************************************
0025 //
0026 // This example is provided by the Geant4-DNA collaboration
0027 // Any report or published results obtained using the Geant4-DNA software
0028 // shall cite the following Geant4-DNA collaboration publication:
0029 // Med. Phys. 37 (2010) 4692-4708
0030 // J. Comput. Phys. 274 (2014) 841-882
0031 // The Geant4-DNA web site is available at http://geant4-dna.org
0032 //
0033 /// \file DetectorConstruction.cc
0034 /// \brief Implementation of the DetectorConstruction class
0035
0036 #include "DetectorConstruction.hh"
0037
0038 #include "PrimaryKiller.hh"
0039 #include "ScoreSpecies.hh"
0040
0041 #include "G4Box.hh"
0042 #include "G4LogicalVolume.hh"
0043 #include "G4MultiFunctionalDetector.hh"
0044 #include "G4NistManager.hh"
0045 #include "G4PSDoseDeposit.hh"
0046 #include "G4PSEnergyDeposit.hh"
0047 #include "G4PVPlacement.hh"
0048 #include "G4PhysicalConstants.hh"
0049 #include "G4SDManager.hh"
0050 #include "G4SystemOfUnits.hh"
0051 #include "G4VPrimitiveScorer.hh"
0052 #include "G4VisAttributes.hh"
0053
0054 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0055
0056 DetectorConstruction::DetectorConstruction() : G4VUserDetectorConstruction() {}
0057
0058 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0059
0060 DetectorConstruction::~DetectorConstruction() {}
0061
0062 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0063
0064 G4VPhysicalVolume* DetectorConstruction::Construct()
0065 {
0066   // Water is defined from NIST material database
0067   G4NistManager* man = G4NistManager::Instance();
0068   G4Material* water = man->FindOrBuildMaterial("G4_WATER");
0069
0070   //
0071   // World
0072   //
0073   double world_sizeXYZ = 1. * kilometer;
0074
0075   G4Box* solidWorld =
0076     new G4Box("World", 0.5 * world_sizeXYZ, 0.5 * world_sizeXYZ, 0.5 * world_sizeXYZ);
0077
0078   G4LogicalVolume* logicWorld = new G4LogicalVolume(solidWorld, water, "World");
0079
0080   G4VPhysicalVolume* physWorld = new G4PVPlacement(0,  // no rotation
0081                                                    G4ThreeVector(),  // its position at (0,0,0)
0082                                                    logicWorld,  // its logical volume
0083                                                    "World",  // its name
0084                                                    0,  // its mother  volume
0085                                                    false,  // no boolean operation
0086                                                    0,  // copy number
0087                                                    true);  // checking overlaps
0088
0089   // Visualization attributes
0090   G4VisAttributes* worldVisAtt = new G4VisAttributes(G4Colour(.5, 1.0, .5));
0091   worldVisAtt->SetVisibility(true);
0092   logicWorld->SetVisAttributes(worldVisAtt);
0093
0094   // always return the physical World
0095   return physWorld;
0096 }
0097
0098 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
0099
0100 void DetectorConstruction::ConstructSDandField()
0101 {
0102   G4SDManager::GetSDMpointer()->SetVerboseLevel(1);
0103
0104   // declare World as a MultiFunctionalDetector scorer
0105   //
0106   G4MultiFunctionalDetector* mfDetector = new G4MultiFunctionalDetector("mfDetector");
0107
0108   //--
0109   // Kill primary track after a chosen energy loss OR under a chosen
0110   // kinetic energy
0111   PrimaryKiller* primaryKiller = new PrimaryKiller("PrimaryKiller");
0112   primaryKiller->SetMinLossEnergyLimit(500. * eV);  // default value
0113   primaryKiller->SetMaxLossEnergyLimit(1. * eV);  // default value
0114   mfDetector->RegisterPrimitive(primaryKiller);
0115
0116   //--
0117   // Record Species scorer:
0118   //  - scores number of species over time
0119   //  - score the total energy deposition
0120   //  - compute the radiochemical yields (G values)
0121   G4VPrimitiveScorer* primitivSpecies = new ScoreSpecies("Species");
0122   mfDetector->RegisterPrimitive(primitivSpecies);
0123   G4SDManager::GetSDMpointer()->AddNewDetector(mfDetector);
0124   SetSensitiveDetector("World", mfDetector);
0125 }