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DetectorConstruction.cc
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24 // ********************************************************************
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 publication:
29 // Med. Phys. 37 (2010) 4692-4708
30 // J. Comput. Phys. 274 (2014) 841-882
31 // The Geant4-DNA web site is available at http://geant4-dna.org
32 //
33 //
36 
37 #include "DetectorConstruction.hh"
38 #include "G4SystemOfUnits.hh"
39 #include "G4ProductionCuts.hh"
40 #include "G4VPhysicalVolume.hh"
41 #include "G4LogicalVolume.hh"
42 #include "G4Box.hh"
43 #include "G4Material.hh"
44 #include "G4NistManager.hh"
45 #include "G4PVPlacement.hh"
46 #include "G4UserLimits.hh"
47 #include "G4VisAttributes.hh"
48 
49 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
50 
51 DetectorConstruction::DetectorConstruction() :
52  G4VUserDetectorConstruction()
53 {
54 }
55 
56 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
57 
58 DetectorConstruction::~DetectorConstruction()
59 {
60 }
61 
62 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
63 
64 G4VPhysicalVolume* DetectorConstruction::Construct()
65 {
66  return ConstructDetector();
67 }
68 
69 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
70 
71 G4Material*
72 DetectorConstruction::OtherMaterial(G4String materialName)
73 {
74  G4Material * material(0);
75 
76  // Water is defined from NIST material database
77  G4NistManager * man = G4NistManager::Instance();
78  material = man->FindOrBuildMaterial(materialName);
79  /*
80  If one wishes to test other density value for water material,
81  one should use instead:
82  G4Material * H2O = man->BuildMaterialWithNewDensity(
83  "G4_WATER_MODIFIED",
84  "G4_WATER",1000*g/cm/cm/cm);
85  Note: any string for "G4_WATER_MODIFIED" parameter is accepted
86  and "G4_WATER" parameter should not be changed
87  Both materials are created and can be selected from dna.mac
88  */
89 
90  return material;
91 }
92 
93 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
94 
95 G4VPhysicalVolume* DetectorConstruction::ConstructDetector()
96 {
97  G4Material* water = OtherMaterial("G4_WATER");
98 
99  // WORLD VOLUME
100  double worldSizeX = 10. * micrometer;
101  double worldSizeY = worldSizeX;
102  double worldSizeZ = worldSizeX;
103 
104  G4Box* solidWorld = new G4Box("World", //its name
105  worldSizeX / 2, worldSizeY / 2, worldSizeZ / 2); //its size
106 
107  G4LogicalVolume* logicWorld = new G4LogicalVolume(solidWorld, //its solid
108  water, //its material
109  "World"); //its name
110 
111  G4VPhysicalVolume* physiWorld = new G4PVPlacement(0, //no rotation
112  G4ThreeVector(), //at (0,0,0)
113  "World", //its name
114  logicWorld, //its logical volume
115  0, //its mother volume
116  false, //no boolean operation
117  0); //copy number
118 
119  // Visualization attributes
120  G4VisAttributes* worldVisAtt = new
121  G4VisAttributes(G4Colour(1.0, 1.0, 1.0)); //White
122  worldVisAtt->SetVisibility(true);
123  logicWorld->SetVisAttributes(worldVisAtt);
124 
125  return physiWorld;
126 }