source: trunk/examples/extended/polarisation/Pol01/src/DetectorConstruction.cc@ 1143

Last change on this file since 1143 was 807, checked in by garnier, 17 years ago

update
File size: 6.9 KB
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1//
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14// * regarding this software system or assume any liability for its *
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19// * technical work of the GEANT4 collaboration. *
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24// ********************************************************************
25//
26// $Id: DetectorConstruction.cc,v 1.2 2006/10/02 16:25:55 vnivanch Exp $
27// GEANT4 tag $Name: $
28//
29//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
30//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
31
32#include "DetectorConstruction.hh"
33#include "DetectorMessenger.hh"
34
35#include "G4Material.hh"
36#include "G4Box.hh"
37#include "G4LogicalVolume.hh"
38#include "G4PVPlacement.hh"
39
40#include "G4GeometryManager.hh"
41#include "G4PhysicalVolumeStore.hh"
42#include "G4LogicalVolumeStore.hh"
43#include "G4SolidStore.hh"
44
45#include "G4UnitsTable.hh"
46
47#include "G4PolarizationManager.hh"
48#include "G4NistManager.hh"
49
50//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
51
52DetectorConstruction::DetectorConstruction()
53:pWorld(0), pBox(0), aMaterial(0)
54{
55 boxSizeXY = 50*mm;
56 boxSizeZ = 5*mm;
57 worldSize = 1.*m;
58 aMaterial = 0;
59 wMaterial = 0;
60 SetTargetMaterial("G4_Fe");
61 SetWorldMaterial("G4_Galactic");
62 detectorMessenger = new DetectorMessenger(this);
63}
64
65//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
66
67DetectorConstruction::~DetectorConstruction()
68{
69 delete detectorMessenger;
70}
71
72//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
73
74G4VPhysicalVolume* DetectorConstruction::Construct()
75{
76 // Cleanup old geometry
77 G4GeometryManager::GetInstance()->OpenGeometry();
78 G4PhysicalVolumeStore::GetInstance()->Clean();
79 G4LogicalVolumeStore::GetInstance()->Clean();
80 G4SolidStore::GetInstance()->Clean();
81
82 G4PolarizationManager::GetInstance()->Clean();
83
84 // World
85 //
86 G4Box*
87 sWorld = new G4Box("World", //name
88 worldSize/2,worldSize/2,worldSize/2); //dimensions
89
90 G4LogicalVolume*
91 lWorld = new G4LogicalVolume(sWorld, //shape
92 wMaterial, //material
93 "World"); //name
94
95 pWorld = new G4PVPlacement(0, //no rotation
96 G4ThreeVector(), //at (0,0,0)
97 lWorld, //logical volume
98 "World", //name
99 0, //mother volume
100 false, //no boolean operation
101 0); //copy number
102
103 // Box
104 //
105 G4Box*
106 sBox = new G4Box("Container", //its name
107 boxSizeXY/2.,boxSizeXY/2.,boxSizeZ/2.); //its dimensions
108
109 G4LogicalVolume*
110 lBox = new G4LogicalVolume(sBox, //its shape
111 aMaterial, //its material
112 "theBox"); //its name
113
114 pBox = new G4PVPlacement(0, //no rotation
115 G4ThreeVector(), //at (0,0,0)
116 lBox, //its logical volume
117 aMaterial->GetName(), //its name
118 lWorld, //its mother volume
119 false, //no boolean operation
120 0); //copy number
121
122 // register logical Volume in PolarizationManager with zero polarization
123 G4PolarizationManager * polMgr = G4PolarizationManager::GetInstance();
124 polMgr->SetVolumePolarization(lBox,G4ThreeVector(0.,0.,0.));
125
126 PrintParameters();
127
128 //always return the root volume
129 //
130 return pWorld;
131}
132
133//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
134
135void DetectorConstruction::PrintParameters()
136{
137 G4cout << "\n The Box is " << G4BestUnit(boxSizeXY,"Length")
138 << " x " << G4BestUnit(boxSizeXY,"Length")
139 << " x " << G4BestUnit(boxSizeZ,"Length")
140 << " of " << aMaterial->GetName() << G4endl;
141}
142
143//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
144
145void DetectorConstruction::SetTargetMaterial(G4String materialChoice)
146{
147 // search the material by its name
148 G4Material* mat =
149 G4NistManager::Instance()->FindOrBuildMaterial(materialChoice);
150 if (mat != aMaterial) {
151 if(mat) {
152 aMaterial = mat;
153 UpdateGeometry();
154 } else {
155 G4cout << "### Warning! Target material: <"
156 << materialChoice << "> not found" << G4endl;
157 }
158 }
159}
160
161//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
162
163void DetectorConstruction::SetWorldMaterial(G4String materialChoice)
164{
165 // search the material by its name
166 G4Material* mat =
167 G4NistManager::Instance()->FindOrBuildMaterial(materialChoice);
168 if (mat != wMaterial) {
169 if(mat) {
170 wMaterial = mat;
171 UpdateGeometry();
172 } else {
173 G4cout << "### Warning! World material: <"
174 << materialChoice << "> not found" << G4endl;
175 }
176 }
177}
178
179//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
180
181void DetectorConstruction::SetSizeXY(G4double value)
182{
183 boxSizeXY = value;
184 if (worldSize<boxSizeXY) worldSize = 1.2*boxSizeXY;
185 UpdateGeometry();
186}
187
188void DetectorConstruction::SetSizeZ(G4double value)
189{
190 boxSizeZ = value;
191 if (worldSize<boxSizeZ) worldSize = 1.2*boxSizeZ;
192 UpdateGeometry();
193}
194
195//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
196
197#include "G4RunManager.hh"
198
199void DetectorConstruction::UpdateGeometry()
200{
201 if (pWorld)
202 G4RunManager::GetRunManager()->DefineWorldVolume(Construct());
203}
204
205//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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