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25 //
26 /// \file exoticphysics/phonon/src/XDetectorConstruction.cc
27 /// \brief Implementation of the XDetectorConstruction class
28 //
29 //
30 // 20141006 For MT compatibility, move SD handling to ConstructSDandField()
31
32 #include "XDetectorConstruction.hh"
33
34 #include "XAluminumElectrodeSensitivity.hh"
35
36 #include "G4Box.hh"
37 #include "G4Colour.hh"
38 #include "G4LatticeLogical.hh"
39 #include "G4LatticeManager.hh"
40 #include "G4LatticePhysical.hh"
41 #include "G4LogicalVolume.hh"
42 #include "G4Material.hh"
43 #include "G4NistManager.hh"
44 #include "G4PVPlacement.hh"
45 #include "G4SDManager.hh"
46 #include "G4Sphere.hh"
47 #include "G4SystemOfUnits.hh"
48 #include "G4Tubs.hh"
49 #include "G4UserLimits.hh"
50 #include "G4VisAttributes.hh"
51 #include "G4ios.hh"
52
53 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
54
55 XDetectorConstruction::XDetectorConstruction() : fConstructed(false), fIfField(false)
56 {
57 fLiquidHelium = NULL;
58 fGermanium = NULL;
59 fAluminum = NULL;
60 fTungsten = NULL;
61 fWorldPhys = NULL;
62 }
63
64 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
65
66 XDetectorConstruction::~XDetectorConstruction()
67 {
68 ;
69 }
70
71 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
72
73 G4VPhysicalVolume* XDetectorConstruction::Construct()
74 {
75 if (!fConstructed) {
76 fConstructed = true;
77 DefineMaterials();
78 SetupGeometry();
79 }
80 return fWorldPhys;
81 }
82
83 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
84
85 void XDetectorConstruction::DefineMaterials()
86 {
87 G4NistManager* nistManager = G4NistManager::Instance();
88
89 fLiquidHelium = nistManager->FindOrBuildMaterial("G4_AIR"); // to be corrected
90 fGermanium = nistManager->FindOrBuildMaterial("G4_Ge");
91 fAluminum = nistManager->FindOrBuildMaterial("G4_Al");
92 fTungsten = nistManager->FindOrBuildMaterial("G4_W");
93 }
94
95 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
96
97 void XDetectorConstruction::SetupGeometry()
98 {
99 //
100 // World
101 //
102 G4VSolid* worldSolid = new G4Box("World", 16. * cm, 16. * cm, 16. * cm);
103 G4LogicalVolume* worldLogical = new G4LogicalVolume(worldSolid, fLiquidHelium, "World");
104 worldLogical->SetUserLimits(new G4UserLimits(10 * mm, DBL_MAX, DBL_MAX, 0, 0));
105 fWorldPhys = new G4PVPlacement(0, G4ThreeVector(), worldLogical, "World", 0, false, 0);
106
107 //
108 // Germanium cylinder - this is the volume in which we will propagate phonons
109 //
110 G4VSolid* fGermaniumSolid =
111 new G4Tubs("fGermaniumSolid", 0. * cm, 3.81 * cm, 1.27 * cm, 0. * deg, 360. * deg);
112 G4LogicalVolume* fGermaniumLogical =
113 new G4LogicalVolume(fGermaniumSolid, fGermanium, "fGermaniumLogical");
114 G4VPhysicalVolume* GePhys = new G4PVPlacement(0, G4ThreeVector(), fGermaniumLogical,
115 "fGermaniumPhysical", worldLogical, false, 0);
116
117 //
118 // Germanium lattice information
119 //
120
121 // G4LatticeManager gives physics processes access to lattices by volume
122 G4LatticeManager* LM = G4LatticeManager::GetLatticeManager();
123 G4LatticeLogical* GeLogical = LM->LoadLattice(fGermanium, "Ge");
124
125 // G4LatticePhysical assigns G4LatticeLogical a physical orientation
126 G4LatticePhysical* GePhysical = new G4LatticePhysical(GeLogical, GePhys->GetFrameRotation());
127 LM->RegisterLattice(GePhys, GePhysical);
128
129 // NOTE: Above registration can also be done in single step:
130 // G4LatticlePhysical* GePhysical = LM->LoadLattice(GePhys, "Ge");
131
132 //
133 // Aluminum - crystal end caps. This is where phonon hits are registered
134 //
135 G4VSolid* fAluminumSolid =
136 new G4Tubs("aluminiumSolid", 0. * cm, 3.81 * cm, 0.01 * cm, 0. * deg, 360. * deg);
137
138 G4LogicalVolume* fAluminumLogical =
139 new G4LogicalVolume(fAluminumSolid, fAluminum, "fAluminumLogical");
140 new G4PVPlacement(0, G4ThreeVector(0., 0., 1.28 * cm), fAluminumLogical, "fAluminumPhysical",
141 worldLogical, false, 0);
142 new G4PVPlacement(0, G4ThreeVector(0., 0., -1.28 * cm), fAluminumLogical, "fAluminumPhysical",
143 worldLogical, false, 1);
144
145 //
146 // Visualization attributes
147 //
148 worldLogical->SetVisAttributes(G4VisAttributes::GetInvisible());
149 G4VisAttributes* simpleBoxVisAtt = new G4VisAttributes(G4Colour(1.0, 1.0, 1.0));
150 simpleBoxVisAtt->SetVisibility(true);
151 fGermaniumLogical->SetVisAttributes(simpleBoxVisAtt);
152 fAluminumLogical->SetVisAttributes(simpleBoxVisAtt);
153 }
154
155 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
156
157 void XDetectorConstruction::ConstructSDandField()
158 {
159 //
160 // detector -- Note : Aluminum electrode sensitivity is attached to Germanium
161 //
162 XAluminumElectrodeSensitivity* electrodeSensitivity =
163 new XAluminumElectrodeSensitivity("XAluminumElectrode");
164 G4SDManager::GetSDMpointer()->AddNewDetector(electrodeSensitivity);
165 SetSensitiveDetector("fGermaniumLogical", electrodeSensitivity);
166 }
167
168 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
169