source: trunk/examples/extended/eventgenerator/exgps/src/exGPSGeometryConstruction.cc@ 1036

Last change on this file since 1036 was 807, checked in by garnier, 17 years ago

update

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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// %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
27//
28//
29#include "exGPSGeometryConstruction.hh"
30
31#include "G4Material.hh"
32#include "G4Element.hh"
33#include "G4Box.hh"
34#include "G4Sphere.hh"
35#include "G4LogicalVolume.hh"
36#include "G4ThreeVector.hh"
37#include "G4PVPlacement.hh"
38
39#include "G4VisAttributes.hh"
40#include "G4Colour.hh"
41
42
43////////////////////////////////////////////////////////////////////////////////
44//
45exGPSGeometryConstruction::exGPSGeometryConstruction ()
46{;}
47////////////////////////////////////////////////////////////////////////////////
48//
49exGPSGeometryConstruction::~exGPSGeometryConstruction ()
50{;}
51////////////////////////////////////////////////////////////////////////////////
52//
53G4VPhysicalVolume* exGPSGeometryConstruction::Construct ()
54{
55 //
56 //
57 // Define materials.
58 //
59 G4double a, iz, z, density,pressure, temperature;
60 G4String name, symbol;
61
62
63 density = universe_mean_density; //from PhysicalConstants.h
64 pressure = 3.e-18*pascal;
65 temperature = 2.73*kelvin;
66 G4Material* Vacuum = new G4Material("Vacuum",
67 1., 1.01*g/mole, density,
68 kStateGas,temperature,pressure);
69 a = 26.98154*g/mole;
70 density = 2.70*g/cm3;
71 G4Material* Aluminium = new G4Material(name="aluminium", z=13., a, density);
72
73 a = 28.0855*g/mole;
74 G4Element* elSi = new G4Element(name="silicon", symbol="Si", iz=14., a);
75
76 a = 16.00*g/mole;
77 G4Element* elO = new G4Element(name="Oxygen", symbol="O", iz=8., a);
78
79 density = 2.65*g/cm3;
80 G4Material* SiliconDioxide =
81 new G4Material(name="silicon oxide", density, 2);
82 SiliconDioxide->AddElement(elSi, 1);
83 SiliconDioxide->AddElement(elO, 2);
84 //
85 // Define size of experiment hall and volumes which will fill it.
86 //
87 G4double world_r = 150.0*mm;
88
89 G4double box_x = 100.0*mm;
90 G4double box_y = 100.0*mm;
91 G4double box_z = 100.0*mm;
92
93 G4double sphere_r = 50.0*mm;
94
95 // Define bodies, logical volumes and physical volumes.
96 // First define the experimental hall.
97 //
98 G4Sphere * universe_s
99 = new G4Sphere("universe_s",0,world_r,0.*deg,360.*deg,0.*deg,180.*deg);
100 G4LogicalVolume * universe_log
101 = new G4LogicalVolume(universe_s,Vacuum,"universe_L",0,0,0);
102 //
103 universe_phys
104 = new G4PVPlacement(0,G4ThreeVector(),"universe_P",
105 universe_log,0,false,0);
106 //define an aluminium box
107 //
108 G4Box * Al_box
109 = new G4Box("Al_b",box_x,box_y,box_z); //
110 G4LogicalVolume * Al_log
111 = new G4LogicalVolume(Al_box,Aluminium,"Box_log",0,0,0);
112 //
113 Al_phys
114 = new G4PVPlacement(0,G4ThreeVector(0.,0.,0.),"Box_phys",
115 Al_log,universe_phys,false,0);
116 //
117 // Define an inner sphere.
118 //x1
119 G4Sphere * aSphere_sph
120 = new G4Sphere("aSphere",0,sphere_r,0.*deg,360.*deg,0.*deg,180.*deg);
121 G4LogicalVolume * aSphere_log
122 = new G4LogicalVolume(aSphere_sph,SiliconDioxide,"Sphere_log",0,0,0);
123 //
124 aSphere_phys
125 = new G4PVPlacement(0,G4ThreeVector(0.,0.,0.),"Sphere_phys",aSphere_log,
126 Al_phys,false,0);
127
128//--------- Visualization attributes -------------------------------
129 universe_log->SetVisAttributes(G4VisAttributes::Invisible);
130 G4VisAttributes* aVisAtt= new G4VisAttributes(G4Colour(0,1.0,1.0));
131 Al_log->SetVisAttributes(aVisAtt);
132 G4VisAttributes* bVisAtt= new G4VisAttributes(G4Colour(1.0,2.0,.0));
133 aSphere_log->SetVisAttributes(bVisAtt);
134
135 return universe_phys;
136}
137
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