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25 //
26 /// \file polarisation/Pol01/src/DetectorConstruction.cc
27 /// \brief Implementation of the DetectorConstruction class
28 //
29 //
30 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
31 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
32
33 #include "DetectorConstruction.hh"
34
35 #include "DetectorMessenger.hh"
36
37 #include "G4Box.hh"
38 #include "G4GeometryManager.hh"
39 #include "G4LogicalVolume.hh"
40 #include "G4LogicalVolumeStore.hh"
41 #include "G4Material.hh"
42 #include "G4NistManager.hh"
43 #include "G4PVPlacement.hh"
44 #include "G4PhysicalVolumeStore.hh"
45 #include "G4PolarizationManager.hh"
46 #include "G4RunManager.hh"
47 #include "G4SolidStore.hh"
48 #include "G4SystemOfUnits.hh"
49 #include "G4UnitsTable.hh"
50
51 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
52
53 DetectorConstruction::DetectorConstruction()
54 : G4VUserDetectorConstruction(), fWorld(0), fBox(0), fTargetMaterial(0), fWorldMaterial(0)
55 {
56 fBoxSizeXY = 50 * mm;
57 fBoxSizeZ = 5 * mm;
58 fWorldSize = 1. * m;
59 ConstructMaterials();
60 fMessenger = new DetectorMessenger(this);
61 }
62
63 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
64
65 DetectorConstruction::~DetectorConstruction()
66 {
67 delete fMessenger;
68 }
69 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
70
71 void DetectorConstruction::ConstructMaterials()
72 {
73 auto nistManager = G4NistManager::Instance();
74
75 fTargetMaterial = nistManager->FindOrBuildMaterial("G4_Fe");
76 if (fTargetMaterial == nullptr) {
77 G4cerr << "### ERROR - Material: <"
78 << "G4_Fe"
79 << "> not found" << G4endl;
80 }
81
82 fWorldMaterial = nistManager->FindOrBuildMaterial("G4_Galactic");
83 if (fWorldMaterial == nullptr) {
84 G4cerr << "### ERROR - Material: <"
85 << "G4_Galactic"
86 << "> not found" << G4endl;
87 }
88 }
89
90 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
91
92 G4LogicalVolume* lBox;
93
94 G4VPhysicalVolume* DetectorConstruction::Construct()
95 {
96 // G4PolarizationManager::GetInstance()->Clean();
97
98 // World
99 //
100 G4Box* sWorld = new G4Box("World", // name
101 fWorldSize / 2, fWorldSize / 2, fWorldSize / 2); // dimensions
102
103 G4LogicalVolume* lWorld = new G4LogicalVolume(sWorld, // shape
104 fWorldMaterial, // material
105 "World"); // name
106
107 fWorld = new G4PVPlacement(0, // no rotation
108 G4ThreeVector(), // at (0,0,0)
109 lWorld, // logical volume
110 "World", // name
111 0, // mother volume
112 false, // no boolean operation
113 0); // copy number
114
115 // Box
116 //
117 G4Box* sBox = new G4Box("Container", // its name
118 fBoxSizeXY / 2., fBoxSizeXY / 2., fBoxSizeZ / 2.); // its dimensions
119
120 // G4LogicalVolume*
121 lBox = new G4LogicalVolume(sBox, // its shape
122 fTargetMaterial, // its material
123 "theBox"); // its name
124
125 fBox = new G4PVPlacement(0, // no rotation
126 G4ThreeVector(), // at (0,0,0)
127 lBox, // its logical volume
128 fTargetMaterial->GetName(), // its name
129 lWorld, // its mother volume
130 false, // no boolean operation
131 0); // copy number
132
133 PrintParameters();
134
135 // always return the root volume
136 //
137 return fWorld;
138 }
139
140 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
141
142 void DetectorConstruction::ConstructSDandField()
143 {
144 // register logical Volume in PolarizationManager with zero polarization
145 G4PolarizationManager* polMgr = G4PolarizationManager::GetInstance();
146 polMgr->SetVolumePolarization(lBox, G4ThreeVector(0., 0., 0.));
147 }
148
149 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
150
151 void DetectorConstruction::PrintParameters()
152 {
153 G4cout << "\n The Box is " << G4BestUnit(fBoxSizeXY, "Length") << " x "
154 << G4BestUnit(fBoxSizeXY, "Length") << " x " << G4BestUnit(fBoxSizeZ, "Length") << " of "
155 << fTargetMaterial->GetName() << G4endl;
156 }
157
158 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
159
160 void DetectorConstruction::SetTargetMaterial(G4String materialChoice)
161 {
162 // search the material by its name
163 G4Material* mat = G4NistManager::Instance()->FindOrBuildMaterial(materialChoice);
164 if (mat != fTargetMaterial) {
165 if (mat) {
166 fTargetMaterial = mat;
167 G4RunManager::GetRunManager()->PhysicsHasBeenModified();
168 UpdateGeometry();
169 }
170 else {
171 G4cout << "### Warning! Target material: <" << materialChoice << "> not found" << G4endl;
172 }
173 }
174 }
175
176 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
177
178 void DetectorConstruction::SetWorldMaterial(G4String materialChoice)
179 {
180 // search the material by its name
181 G4Material* mat = G4NistManager::Instance()->FindOrBuildMaterial(materialChoice);
182 if (mat != fWorldMaterial) {
183 if (mat) {
184 fWorldMaterial = mat;
185 G4RunManager::GetRunManager()->PhysicsHasBeenModified();
186 UpdateGeometry();
187 }
188 else {
189 G4cout << "### Warning! World material: <" << materialChoice << "> not found" << G4endl;
190 }
191 }
192 }
193
194 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
195
196 void DetectorConstruction::SetSizeXY(G4double value)
197 {
198 fBoxSizeXY = value;
199 if (fWorldSize < fBoxSizeXY) fWorldSize = 1.2 * fBoxSizeXY;
200 UpdateGeometry();
201 }
202
203 void DetectorConstruction::SetSizeZ(G4double value)
204 {
205 fBoxSizeZ = value;
206 if (fWorldSize < fBoxSizeZ) fWorldSize = 1.2 * fBoxSizeZ;
207 UpdateGeometry();
208 }
209
210 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
211
212 #include "G4RunManager.hh"
213
214 void DetectorConstruction::UpdateGeometry()
215 {
216 // if (fWorld)
217 // G4RunManager::GetRunManager()->DefineWorldVolume(Construct());
218 G4RunManager::GetRunManager()->GeometryHasBeenModified();
219 }
220
221 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
222