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25 //
26 // This example is provided by the Geant4-DNA collaboration
27 // Any report or published results obtained using the Geant4-DNA software
28 // shall cite the following Geant4-DNA collaboration publications:
29 // Med. Phys. 45 (2018) e722-e739
30 // Phys. Med. 31 (2015) 861-874
31 // Med. Phys. 37 (2010) 4692-4708
32 // Int. J. Model. Simul. Sci. Comput. 1 (2010) 157–178
33 //
34 // The Geant4-DNA web site is available at http://geant4-dna.org
35 //
36 /// \file medical/dna/slowing/src/DetectorConstruction.cc
37 /// \brief Implementation of the DetectorConstruction class
38
39 #include "DetectorConstruction.hh"
40
41 #include "DetectorMessenger.hh"
42
43 #include "G4NistManager.hh"
44 #include "G4RunManager.hh"
45 #include "G4SystemOfUnits.hh"
46 #include "G4UnitsTable.hh"
47 #include "G4UserLimits.hh"
48
49 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
50
51 DetectorConstruction::DetectorConstruction() : G4VUserDetectorConstruction(), fWaterMaterial(0)
52 {
53 // Create commands for interactive definition of the detector
54 fDetectorMessenger = new DetectorMessenger(this);
55
56 // Default tracking cut
57 fTrackingCut = 7.4 * eV;
58 }
59
60 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
61
62 DetectorConstruction::~DetectorConstruction()
63 {
64 delete fDetectorMessenger;
65 }
66
67 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
68
69 G4VPhysicalVolume* DetectorConstruction::Construct()
70 {
71 DefineMaterials();
72 return ConstructDetector();
73 }
74
75 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
76
77 void DetectorConstruction::DefineMaterials()
78 {
79 // Water is defined from NIST material database
80 G4NistManager* man = G4NistManager::Instance();
81
82 G4Material* H2O = man->FindOrBuildMaterial("G4_WATER");
83
84 fWaterMaterial = H2O;
85
86 G4cout << *(G4Material::GetMaterialTable()) << G4endl;
87 }
88
89 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
90
91 G4VPhysicalVolume* DetectorConstruction::ConstructDetector()
92 {
93 // WORLD VOLUME
94
95 G4double worldSizeX = 1 * m;
96 G4double worldSizeY = worldSizeX;
97 G4double worldSizeZ = worldSizeX;
98
99 G4Box* solidWorld = new G4Box("World", // its name
100 worldSizeX / 2, worldSizeY / 2, worldSizeZ / 2); // its size
101
102 fLogicWorld = new G4LogicalVolume(solidWorld, // its solid
103 fWaterMaterial, // its material
104 "World"); // its name
105
106 G4PVPlacement* physiWorld = new G4PVPlacement(0, // no rotation
107 G4ThreeVector(), // at (0,0,0)
108 fLogicWorld,
109 "World", // its name
110 0, // its mother volume
111 false, // no boolean operation
112 0); // copy number
113
114 // Visualization attributes
115 G4VisAttributes* worldVisAtt = new G4VisAttributes(G4Colour(1.0, 1.0, 1.0));
116 worldVisAtt->SetVisibility(true);
117 fLogicWorld->SetVisAttributes(worldVisAtt);
118
119 G4VisAttributes* worldVisAtt1 = new G4VisAttributes(G4Colour(1.0, 0.0, 0.0));
120 worldVisAtt1->SetVisibility(true);
121
122 // Tracking cut
123 fLogicWorld->SetUserLimits(new G4UserLimits(DBL_MAX, DBL_MAX, DBL_MAX, fTrackingCut));
124
125 PrintParameters();
126
127 return physiWorld;
128 }
129
130 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
131
132 void DetectorConstruction::SetMaterial(G4String materialChoice)
133 {
134 // Search the material by its name
135 G4Material* pttoMaterial = G4Material::GetMaterial(materialChoice);
136 if (pttoMaterial) fWaterMaterial = pttoMaterial;
137 G4RunManager::GetRunManager()->PhysicsHasBeenModified();
138 }
139
140 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
141
142 void DetectorConstruction::SetTrackingCut(G4double value)
143 {
144 fTrackingCut = value;
145 G4RunManager::GetRunManager()->ReinitializeGeometry();
146 }
147
148 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
149
150 void DetectorConstruction::PrintParameters() const
151 {
152 G4cout << "\n---------------------------------------------------------\n";
153 G4cout << "---> The tracking cut is set to " << G4BestUnit(fTrackingCut, "Energy") << G4endl;
154 G4cout << "\n---------------------------------------------------------\n";
155 }
156