source: trunk/examples/extended/electromagnetic/TestEm18/src/DetectorConstruction.cc @ 1309

Last change on this file since 1309 was 1230, checked in by garnier, 14 years ago

update to geant4.9.3
File size: 7.0 KB
Line 
1//
2// ********************************************************************
3// * License and Disclaimer                                           *
4// *                                                                  *
5// * The  Geant4 software  is  copyright of the Copyright Holders  of *
6// * the Geant4 Collaboration.  It is provided  under  the terms  and *
7// * conditions of the Geant4 Software License,  included in the file *
8// * LICENSE and available at  http://cern.ch/geant4/license .  These *
9// * include a list of copyright holders.                             *
10// *                                                                  *
11// * Neither the authors of this software system, nor their employing *
12// * institutes,nor the agencies providing financial support for this *
13// * work  make  any representation or  warranty, express or implied, *
14// * regarding  this  software system or assume any liability for its *
15// * use.  Please see the license in the file  LICENSE  and URL above *
16// * for the full disclaimer and the limitation of liability.         *
17// *                                                                  *
18// * This  code  implementation is the result of  the  scientific and *
19// * technical work of the GEANT4 collaboration.                      *
20// * By using,  copying,  modifying or  distributing the software (or *
21// * any work based  on the software)  you  agree  to acknowledge its *
22// * use  in  resulting  scientific  publications,  and indicate your *
23// * acceptance of all terms of the Geant4 Software license.          *
24// ********************************************************************
25//
26// $Id: DetectorConstruction.cc,v 1.3 2009/03/06 18:24:07 maire Exp $
27// GEANT4 tag $Name: geant4-09-03-cand-01 $
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//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
48
49DetectorConstruction::DetectorConstruction()
50:pBox(0), lBox(0), aMaterial(0)
51{
52  BoxSize = 1*cm;
53  DefineMaterials();
54  SetMaterial("Water"); 
55  detectorMessenger = new DetectorMessenger(this);
56}
57
58//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
59
60DetectorConstruction::~DetectorConstruction()
61{ delete detectorMessenger;}
62
63//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
64
65G4VPhysicalVolume* DetectorConstruction::Construct()
66{
67  return ConstructVolumes();
68}
69
70//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
71
72void DetectorConstruction::DefineMaterials()
73{
74  //
75  // define Elements
76  //
77  G4double z,a;
78 
79  G4Element* H  = new G4Element("Hydrogen" ,"H" , z= 1., a=   1.01*g/mole);
80  G4Element* N  = new G4Element("Nitrogen" ,"N" , z= 7., a=  14.01*g/mole);
81  G4Element* O  = new G4Element("Oxygen"   ,"O" , z= 8., a=  16.00*g/mole);
82 
83  //
84  // define materials
85  //
86  G4double density;
87  G4int ncomponents, natoms;
88  G4double fractionmass; 
89 
90  G4Material* Air = 
91  new G4Material("Air", density= 1.290*mg/cm3, ncomponents=2);
92  Air->AddElement(N, fractionmass=70.*perCent);
93  Air->AddElement(O, fractionmass=30.*perCent);
94
95  G4Material* H2O = 
96  new G4Material("Water", density= 1.000*g/cm3, ncomponents=2);
97  H2O->AddElement(H, natoms=2);
98  H2O->AddElement(O, natoms=1);
99  H2O->GetIonisation()->SetMeanExcitationEnergy(75.0*eV);
100 
101  G4Material* vapor = 
102  new G4Material("Water_vapor", density= 1.000*mg/cm3, ncomponents=2);
103  vapor->AddElement(H, natoms=2);
104  vapor->AddElement(O, natoms=1);
105  vapor->GetIonisation()->SetMeanExcitationEnergy(75.0*eV);
106 
107  new G4Material("Carbon"     , z=6.,  a= 12.01*g/mole, density= 2.267*g/cm3);
108  new G4Material("Aluminium"  , z=13., a= 26.98*g/mole, density= 2.700*g/cm3);
109  new G4Material("Silicon"    , z=14., a= 28.09*g/mole, density= 2.330*g/cm3);
110  new G4Material("liquidArgon", z=18., a= 39.95*g/mole, density= 1.390*g/cm3);
111  new G4Material("Iron"       , z=26., a= 55.85*g/mole, density= 7.870*g/cm3); 
112  new G4Material("Germanium"  , z=32., a= 72.61*g/mole, density= 5.323*g/cm3);
113  new G4Material("Tungsten"   , z=74., a=183.85*g/mole, density= 19.30*g/cm3);
114  new G4Material("Lead"       , z=82., a=207.19*g/mole, density= 11.35*g/cm3);
115 
116  new G4Material("ArgonGas"   , z=18., a=39.948*g/mole, density= 1.782*mg/cm3,
117                 kStateGas, 273.15*kelvin, 1*atmosphere);
118                 
119  G4cout << *(G4Material::GetMaterialTable()) << G4endl;
120}
121
122//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
123
124G4VPhysicalVolume* DetectorConstruction::ConstructVolumes()
125{
126  // Cleanup old geometry
127  G4GeometryManager::GetInstance()->OpenGeometry();
128  G4PhysicalVolumeStore::GetInstance()->Clean();
129  G4LogicalVolumeStore::GetInstance()->Clean();
130  G4SolidStore::GetInstance()->Clean();
131
132  G4Box*
133  sBox = new G4Box("Container",                         //its name
134                   BoxSize/2,BoxSize/2,BoxSize/2);      //its dimensions
135
136  lBox = new G4LogicalVolume(sBox,                      //its shape
137                             aMaterial,                 //its material
138                             aMaterial->GetName());     //its name
139
140  pBox = new G4PVPlacement(0,                           //no rotation
141                           G4ThreeVector(),             //at (0,0,0)
142                           lBox,                        //its logical volume                       
143                           aMaterial->GetName(),        //its name
144                           0,                           //its mother  volume
145                           false,                       //no boolean operation
146                           0);                          //copy number
147                           
148  PrintParameters();
149 
150  //always return the root volume
151  //
152  return pBox;
153}
154
155//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
156
157void DetectorConstruction::PrintParameters()
158{
159  G4cout << "\n The Box is " << G4BestUnit(BoxSize,"Length")
160         << " of " << aMaterial->GetName() << G4endl;
161}
162
163//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
164
165void DetectorConstruction::SetMaterial(G4String materialChoice)
166{
167  // search the material by its name
168  G4Material* pttoMaterial = G4Material::GetMaterial(materialChoice);
169  if (pttoMaterial) {
170   aMaterial = pttoMaterial;
171   UpdateGeometry();
172  } else {
173    G4cout << "\n--> warning from DetectorConstruction::SetMaterial : "
174           << materialChoice << " not found" << G4endl; 
175  } 
176}
177
178//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
179
180void DetectorConstruction::SetSize(G4double value)
181{
182  BoxSize = value;
183  UpdateGeometry(); 
184}
185
186//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
187
188#include "G4RunManager.hh"
189
190void DetectorConstruction::UpdateGeometry()
191{
192  if (pBox) 
193  G4RunManager::GetRunManager()->DefineWorldVolume(ConstructVolumes());
194}
195
196//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
Note: See TracBrowser for help on using the repository browser.