source: trunk/examples/extended/electromagnetic/TestEm0/src/DetectorConstruction.cc @ 1279

Last change on this file since 1279 was 1230, checked in by garnier, 14 years ago

update to geant4.9.3
File size: 7.7 KB
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28// $Id: DetectorConstruction.cc,v 1.10 2009/11/14 18:04:20 maire Exp $
29// GEANT4 tag $Name: geant4-09-03-cand-01 $
30//
31//
32
33//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
34//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
35
36#include "DetectorConstruction.hh"
37#include "DetectorMessenger.hh"
38
39#include "G4Material.hh"
40#include "G4NistManager.hh"
41#include "G4Box.hh"
42#include "G4LogicalVolume.hh"
43#include "G4PVPlacement.hh"
44
45#include "G4GeometryManager.hh"
46#include "G4PhysicalVolumeStore.hh"
47#include "G4LogicalVolumeStore.hh"
48#include "G4SolidStore.hh"
49
50#include "G4UnitsTable.hh"
51
52//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
53
54DetectorConstruction::DetectorConstruction()
55:pBox(0), aMaterial(0)
56{
57  BoxSize = 1*mm;
58  DefineMaterials();
59  SetMaterial("Germanium"); 
60  detectorMessenger = new DetectorMessenger(this);
61}
62
63//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
64
65DetectorConstruction::~DetectorConstruction()
66{ delete detectorMessenger;}
67
68//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
69
70G4VPhysicalVolume* DetectorConstruction::Construct()
71{
72  return ConstructVolumes();
73}
74
75//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
76
77void DetectorConstruction::DefineMaterials()
78{
79  //
80  // define Elements
81  //
82  G4double z,a;
83 
84  G4Element* H  = new G4Element("Hydrogen" ,"H" , z= 1., a=   1.01*g/mole);
85  G4Element* C  = new G4Element("Carbon"   ,"C" , z= 6., a=  12.01*g/mole); 
86  G4Element* N  = new G4Element("Nitrogen" ,"N" , z= 7., a=  14.01*g/mole);
87  G4Element* O  = new G4Element("Oxygen"   ,"O" , z= 8., a=  16.00*g/mole);
88  G4Element* Ge = new G4Element("Germanium","Ge", z=32., a=  72.59*g/mole);
89  G4Element* Pb = new G4Element("Lead"     ,"Pb", z=82., a= 207.19*g/mole); 
90  G4Element* Bi = new G4Element("Bismuth"  ,"Bi", z=83., a= 208.98*g/mole);
91 
92  //
93  // define materials
94  //
95  G4double density;
96  G4int ncomponents, natoms;
97  G4double fractionmass; 
98 
99  G4Material* Air = 
100  new G4Material("Air", density= 1.290*mg/cm3, ncomponents=2);
101  Air->AddElement(N, fractionmass=70.*perCent);
102  Air->AddElement(O, fractionmass=30.*perCent);
103
104  G4Material* H2l = 
105  new G4Material("H2liquid", density= 70.8*mg/cm3, ncomponents=1);
106  H2l->AddElement(H, fractionmass=1.);
107 
108  G4Material* H2O = 
109  new G4Material("Water", density= 1.000*g/cm3, ncomponents=2);
110  H2O->AddElement(H, natoms=2);
111  H2O->AddElement(O, natoms=1);
112  ///H2O->SetChemicalFormula("H_2O");
113  H2O->GetIonisation()->SetMeanExcitationEnergy(75.0*eV);
114       
115  G4Material* steam = 
116  new G4Material("WaterSteam", density= 1.0*mg/cm3, ncomponents=1);
117  steam->AddMaterial(H2O, fractionmass=1.);
118  steam->GetIonisation()->SetMeanExcitationEnergy(71.6*eV); 
119   
120  G4Material* BGO = 
121  new G4Material("BGO", density= 7.10*g/cm3, ncomponents=3);
122  BGO->AddElement(O , natoms=12);
123  BGO->AddElement(Ge, natoms= 3);
124  BGO->AddElement(Bi, natoms= 4); 
125   
126  new G4Material("Aluminium"  , z=13., a= 26.98*g/mole, density= 2.700*g/cm3);
127  new G4Material("Silicon"    , z=14., a= 28.09*g/mole, density= 2.330*g/cm3);
128  new G4Material("liquidArgon", z=18., a= 39.95*g/mole, density= 1.390*g/cm3); 
129  new G4Material("Iron"       , z=26., a= 55.85*g/mole, density= 7.870*g/cm3);
130  new G4Material("Copper"     , z=29., a= 63.55*g/mole, density= 8.960*g/cm3);
131  new G4Material("Germanium"  , z=32., a= 72.61*g/mole, density= 5.323*g/cm3);   
132  new G4Material("Silver"     , z=47., a=107.87*g/mole, density= 10.50*g/cm3);
133  new G4Material("Tungsten"   , z=74., a=183.85*g/mole, density= 19.30*g/cm3);
134  new G4Material("Lead"       , z=82., a=207.19*g/mole, density= 11.35*g/cm3);
135  new G4Material("Uranium"    , z=92., a=238.03*g/mole, density= 18.95*g/cm3);
136   
137  G4Material* ams = 
138  new G4Material("ams", density= 7.409*g/cm3, ncomponents=3);
139  ams->AddElement(Pb, fractionmass = 94.81*perCent);
140  ams->AddElement(C , fractionmass =  4.79*perCent);
141  ams->AddElement(H , fractionmass =  0.40*perCent);   
142   
143  G4cout << *(G4Material::GetMaterialTable()) << G4endl;
144}
145
146//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
147
148G4VPhysicalVolume* DetectorConstruction::ConstructVolumes()
149{
150  // Cleanup old geometry
151  G4GeometryManager::GetInstance()->OpenGeometry();
152  G4PhysicalVolumeStore::GetInstance()->Clean();
153  G4LogicalVolumeStore::GetInstance()->Clean();
154  G4SolidStore::GetInstance()->Clean();
155
156  G4Box* 
157    sBox = new G4Box("Container",                       //its name
158                     BoxSize/2,BoxSize/2,BoxSize/2);    //its dimensions
159                   
160  G4LogicalVolume*
161    lBox = new G4LogicalVolume(sBox,                    //its shape
162                               aMaterial,               //its material
163                               aMaterial->GetName());   //its name
164
165  pBox = new G4PVPlacement(0,                           //no rotation
166                           G4ThreeVector(),             //at (0,0,0)
167                           lBox,                        //its logical volume
168                           aMaterial->GetName(),        //its name
169                           0,                           //its mother  volume
170                           false,                       //no boolean operation
171                           0);                          //copy number
172                             
173  //always return the root volume
174  //
175  return pBox;
176}
177
178//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
179
180void DetectorConstruction::PrintParameters()
181{
182  G4cout << "\n The Box is " << G4BestUnit(BoxSize,"Length")
183         << " of " << aMaterial->GetName() << G4endl;
184}
185
186//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
187
188#include "G4RunManager.hh"
189
190void DetectorConstruction::SetMaterial(G4String materialChoice)
191{
192  // search the material by its name, or build it from nist data base
193  G4Material* pttoMaterial = 
194     G4NistManager::Instance()->FindOrBuildMaterial(materialChoice);
195
196  if (pttoMaterial) {
197    aMaterial = pttoMaterial;
198    if (pBox) G4RunManager::GetRunManager()
199                             ->DefineWorldVolume(ConstructVolumes());
200  } else {
201    G4cout << "\n--> warning from DetectorConstruction::SetMaterial : "
202           << materialChoice << " not found" << G4endl; 
203  } 
204}
205
206//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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