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27 /// \file optical/LXe/src/LXeMainVolume.cc 27 /// \file optical/LXe/src/LXeMainVolume.cc
28 /// \brief Implementation of the LXeMainVolume 28 /// \brief Implementation of the LXeMainVolume class
29 // 29 //
30 // 30 //
31 #include "LXeMainVolume.hh" 31 #include "LXeMainVolume.hh"
32 32
>> 33 #include "globals.hh"
33 #include "G4Box.hh" 34 #include "G4Box.hh"
34 #include "G4Colour.hh" 35 #include "G4Colour.hh"
35 #include "G4LogicalBorderSurface.hh" <<
36 #include "G4LogicalSkinSurface.hh" 36 #include "G4LogicalSkinSurface.hh"
>> 37 #include "G4LogicalBorderSurface.hh"
37 #include "G4LogicalVolume.hh" 38 #include "G4LogicalVolume.hh"
38 #include "G4Material.hh" 39 #include "G4Material.hh"
39 #include "G4MaterialPropertiesTable.hh" 40 #include "G4MaterialPropertiesTable.hh"
40 #include "G4OpticalSurface.hh" 41 #include "G4OpticalSurface.hh"
41 #include "G4Sphere.hh" 42 #include "G4Sphere.hh"
42 #include "G4SystemOfUnits.hh" 43 #include "G4SystemOfUnits.hh"
43 #include "G4Tubs.hh" 44 #include "G4Tubs.hh"
44 #include "G4VisAttributes.hh" 45 #include "G4VisAttributes.hh"
45 #include "globals.hh" <<
46 46
47 //....oooOO0OOooo........oooOO0OOooo........oo 47 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
48 48
49 LXeMainVolume::LXeMainVolume(G4RotationMatrix* 49 LXeMainVolume::LXeMainVolume(G4RotationMatrix* pRot, const G4ThreeVector& tlate,
50 G4LogicalVolume* << 50 G4LogicalVolume* pMotherLogical, G4bool pMany,
51 LXeDetectorConstr << 51 G4int pCopyNo, LXeDetectorConstruction* c)
52 // Pass info to the G4PVPlacement constructo 52 // Pass info to the G4PVPlacement constructor
53 : G4PVPlacement( << 53 : G4PVPlacement(pRot, tlate,
54 pRot, tlate, << 54 // Temp logical volume must be created here
55 // Temp logical volume must be created h << 55 new G4LogicalVolume(new G4Box("temp", 1, 1, 1),
56 new G4LogicalVolume(new G4Box("temp", 1, << 56 G4Material::GetMaterial("Vacuum"), "temp",
57 "housing", pMotherLogical, pMany, pCopyN << 57 0, 0, 0),
58 fConstructor(c) << 58 "housing", pMotherLogical, pMany, pCopyNo)
>> 59 , fConstructor(c)
59 { 60 {
60 CopyValues(); 61 CopyValues();
61 62
62 G4double housing_x = fScint_x + 2. * fD_mtl; 63 G4double housing_x = fScint_x + 2. * fD_mtl;
63 G4double housing_y = fScint_y + 2. * fD_mtl; 64 G4double housing_y = fScint_y + 2. * fD_mtl;
64 G4double housing_z = fScint_z + 2. * fD_mtl; 65 G4double housing_z = fScint_z + 2. * fD_mtl;
65 66
66 //*************************** housing and sc 67 //*************************** housing and scintillator
67 fScint_box = new G4Box("scint_box", fScint_x << 68 fScint_box =
68 fHousing_box = new G4Box("housing_box", hous << 69 new G4Box("scint_box", fScint_x / 2., fScint_y / 2., fScint_z / 2.);
69 << 70 fHousing_box =
70 fScint_log = new G4LogicalVolume(fScint_box, << 71 new G4Box("housing_box", housing_x / 2., housing_y / 2., housing_z / 2.);
71 fHousing_log = new G4LogicalVolume(fHousing_ << 72
>> 73 fScint_log = new G4LogicalVolume(fScint_box, G4Material::GetMaterial("LXe"),
>> 74 "scint_log", 0, 0, 0);
>> 75 fHousing_log = new G4LogicalVolume(
>> 76 fHousing_box, G4Material::GetMaterial("Al"), "housing_log", 0, 0, 0);
72 77
73 new G4PVPlacement(nullptr, G4ThreeVector(), << 78 new G4PVPlacement(0, G4ThreeVector(), fScint_log, "scintillator",
>> 79 fHousing_log, false, 0);
74 80
75 //*************** Miscellaneous sphere to de 81 //*************** Miscellaneous sphere to demonstrate skin surfaces
76 fSphere = new G4Sphere("sphere", 0., 2. * cm << 82 fSphere = new G4Sphere("sphere", 0., 2. * cm, 0. * deg, 360. * deg, 0. * deg,
77 fSphere_log = new G4LogicalVolume(fSphere, G << 83 360. * deg);
78 if (fSphereOn) << 84 fSphere_log =
79 new G4PVPlacement(nullptr, G4ThreeVector(5 << 85 new G4LogicalVolume(fSphere, G4Material::GetMaterial("Al"), "sphere_log");
80 fScint_log, false, 0); << 86 if(fSphereOn)
>> 87 new G4PVPlacement(0, G4ThreeVector(5. * cm, 5. * cm, 5. * cm), fSphere_log,
>> 88 "sphere", fScint_log, false, 0);
81 89
82 //****************** Build PMTs 90 //****************** Build PMTs
83 G4double innerRadius_pmt = 0.; << 91 G4double innerRadius_pmt = 0.;
84 G4double height_pmt = fD_mtl / 2.; << 92 G4double height_pmt = fD_mtl / 2.;
85 G4double startAngle_pmt = 0.; << 93 G4double startAngle_pmt = 0.;
86 G4double spanningAngle_pmt = 360. * deg; 94 G4double spanningAngle_pmt = 360. * deg;
87 95
88 fPmt = new G4Tubs("pmt_tube", innerRadius_pm << 96 fPmt = new G4Tubs("pmt_tube", innerRadius_pmt, fOuterRadius_pmt, height_pmt,
89 spanningAngle_pmt); << 97 startAngle_pmt, spanningAngle_pmt);
90 98
91 // the "photocathode" is a metal slab at the 99 // the "photocathode" is a metal slab at the back of the glass that
92 // is only a very rough approximation of the 100 // is only a very rough approximation of the real thing since it only
93 // absorbs or detects the photons based on t 101 // absorbs or detects the photons based on the efficiency set below
94 fPhotocath = new G4Tubs("photocath_tube", in << 102 fPhotocath = new G4Tubs("photocath_tube", innerRadius_pmt, fOuterRadius_pmt,
95 startAngle_pmt, span << 103 height_pmt / 2., startAngle_pmt, spanningAngle_pmt);
96 104
97 fPmt_log = new G4LogicalVolume(fPmt, G4Mater << 105 fPmt_log =
98 fPhotocath_log = new G4LogicalVolume(fPhotoc << 106 new G4LogicalVolume(fPmt, G4Material::GetMaterial("Glass"), "pmt_log");
>> 107 fPhotocath_log = new G4LogicalVolume(
>> 108 fPhotocath, G4Material::GetMaterial("Al"), "photocath_log");
99 109
100 new G4PVPlacement(nullptr, G4ThreeVector(0., << 110 new G4PVPlacement(0, G4ThreeVector(0., 0., -height_pmt / 2.), fPhotocath_log,
101 fPmt_log, false, 0); << 111 "photocath", fPmt_log, false, 0);
102 112
103 //***********Arrange pmts around the outside 113 //***********Arrange pmts around the outside of housing**********
104 114
105 G4double dx = fScint_x / fNx; 115 G4double dx = fScint_x / fNx;
106 G4double dy = fScint_y / fNy; 116 G4double dy = fScint_y / fNy;
107 G4double dz = fScint_z / fNz; 117 G4double dz = fScint_z / fNz;
108 118
109 G4double x, y, z; 119 G4double x, y, z;
110 G4double xmin = -fScint_x / 2. - dx / 2.; 120 G4double xmin = -fScint_x / 2. - dx / 2.;
111 G4double ymin = -fScint_y / 2. - dy / 2.; 121 G4double ymin = -fScint_y / 2. - dy / 2.;
112 G4double zmin = -fScint_z / 2. - dz / 2.; 122 G4double zmin = -fScint_z / 2. - dz / 2.;
113 G4int k = 0; << 123 G4int k = 0;
114 124
115 z = -fScint_z / 2. - height_pmt; // front 125 z = -fScint_z / 2. - height_pmt; // front
116 PlacePMTs(fPmt_log, nullptr, x, y, dx, dy, x 126 PlacePMTs(fPmt_log, nullptr, x, y, dx, dy, xmin, ymin, fNx, fNy, x, y, z, k);
117 127
118 auto rm_z = new G4RotationMatrix(); << 128 G4RotationMatrix* rm_z = new G4RotationMatrix();
119 rm_z->rotateY(180. * deg); 129 rm_z->rotateY(180. * deg);
120 z = fScint_z / 2. + height_pmt; // back 130 z = fScint_z / 2. + height_pmt; // back
121 PlacePMTs(fPmt_log, rm_z, x, y, dx, dy, xmin 131 PlacePMTs(fPmt_log, rm_z, x, y, dx, dy, xmin, ymin, fNx, fNy, x, y, z, k);
122 132
123 auto rm_y1 = new G4RotationMatrix(); << 133 G4RotationMatrix* rm_y1 = new G4RotationMatrix();
124 rm_y1->rotateY(-90. * deg); 134 rm_y1->rotateY(-90. * deg);
125 x = -fScint_x / 2. - height_pmt; // left 135 x = -fScint_x / 2. - height_pmt; // left
126 PlacePMTs(fPmt_log, rm_y1, y, z, dy, dz, ymi 136 PlacePMTs(fPmt_log, rm_y1, y, z, dy, dz, ymin, zmin, fNy, fNz, x, y, z, k);
127 137
128 auto rm_y2 = new G4RotationMatrix(); << 138 G4RotationMatrix* rm_y2 = new G4RotationMatrix();
129 rm_y2->rotateY(90. * deg); 139 rm_y2->rotateY(90. * deg);
130 x = fScint_x / 2. + height_pmt; // right 140 x = fScint_x / 2. + height_pmt; // right
131 PlacePMTs(fPmt_log, rm_y2, y, z, dy, dz, ymi 141 PlacePMTs(fPmt_log, rm_y2, y, z, dy, dz, ymin, zmin, fNy, fNz, x, y, z, k);
132 142
133 auto rm_x1 = new G4RotationMatrix(); << 143 G4RotationMatrix* rm_x1 = new G4RotationMatrix();
134 rm_x1->rotateX(90. * deg); 144 rm_x1->rotateX(90. * deg);
135 y = -fScint_y / 2. - height_pmt; // bottom 145 y = -fScint_y / 2. - height_pmt; // bottom
136 PlacePMTs(fPmt_log, rm_x1, x, z, dx, dz, xmi 146 PlacePMTs(fPmt_log, rm_x1, x, z, dx, dz, xmin, zmin, fNx, fNz, x, y, z, k);
137 147
138 auto rm_x2 = new G4RotationMatrix(); << 148 G4RotationMatrix* rm_x2 = new G4RotationMatrix();
139 rm_x2->rotateX(-90. * deg); 149 rm_x2->rotateX(-90. * deg);
140 y = fScint_y / 2. + height_pmt; // top 150 y = fScint_y / 2. + height_pmt; // top
141 PlacePMTs(fPmt_log, rm_x2, x, z, dx, dz, xmi 151 PlacePMTs(fPmt_log, rm_x2, x, z, dx, dz, xmin, zmin, fNx, fNz, x, y, z, k);
142 152
143 VisAttributes(); 153 VisAttributes();
144 SurfaceProperties(); 154 SurfaceProperties();
145 155
146 SetLogicalVolume(fHousing_log); 156 SetLogicalVolume(fHousing_log);
147 } 157 }
148 158
149 //....oooOO0OOooo........oooOO0OOooo........oo 159 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
150 160
151 void LXeMainVolume::CopyValues() 161 void LXeMainVolume::CopyValues()
152 { 162 {
153 fScint_x = fConstructor->GetScintX(); << 163 fScint_x = fConstructor->GetScintX();
154 fScint_y = fConstructor->GetScintY(); << 164 fScint_y = fConstructor->GetScintY();
155 fScint_z = fConstructor->GetScintZ(); << 165 fScint_z = fConstructor->GetScintZ();
156 fD_mtl = fConstructor->GetHousingThickness() << 166 fD_mtl = fConstructor->GetHousingThickness();
157 fNx = fConstructor->GetNX(); << 167 fNx = fConstructor->GetNX();
158 fNy = fConstructor->GetNY(); << 168 fNy = fConstructor->GetNY();
159 fNz = fConstructor->GetNZ(); << 169 fNz = fConstructor->GetNZ();
160 fOuterRadius_pmt = fConstructor->GetPMTRadiu 170 fOuterRadius_pmt = fConstructor->GetPMTRadius();
161 fSphereOn = fConstructor->GetSphereOn(); << 171 fSphereOn = fConstructor->GetSphereOn();
162 fRefl = fConstructor->GetHousingReflectivity << 172 fRefl = fConstructor->GetHousingReflectivity();
163 } 173 }
164 174
165 //....oooOO0OOooo........oooOO0OOooo........oo 175 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
166 176
167 void LXeMainVolume::PlacePMTs(G4LogicalVolume* << 177 void LXeMainVolume::PlacePMTs(G4LogicalVolume* pmt_log, G4RotationMatrix* rot,
168 G4double& b, G4d << 178 G4double& a, G4double& b, G4double da,
169 G4int na, G4int << 179 G4double db, G4double amin, G4double bmin,
>> 180 G4int na, G4int nb, G4double& x, G4double& y,
>> 181 G4double& z, G4int& k)
170 { 182 {
171 /* PlacePMTs : a different way to parameter 183 /* PlacePMTs : a different way to parameterize placement that does not depend
172 * on calculating the position from the copy 184 * on calculating the position from the copy number
173 * 185 *
174 * pmt_log = logical volume for pmts to be 186 * pmt_log = logical volume for pmts to be placed
175 * rot = rotation matrix to apply 187 * rot = rotation matrix to apply
176 * a,b = coordinates to vary(ie. if varying 188 * a,b = coordinates to vary(ie. if varying in the xy plane then pass x,y)
177 * da,db = value to increment a,b by 189 * da,db = value to increment a,b by
178 * amin,bmin = start values for a,b 190 * amin,bmin = start values for a,b
179 * na,nb = number of repitions in a and b 191 * na,nb = number of repitions in a and b
180 * x,y,z = just pass x,y, and z by referenc 192 * x,y,z = just pass x,y, and z by reference (the same ones passed for a,b)
181 * k = copy number to start with 193 * k = copy number to start with
182 * sd = sensitive detector for pmts 194 * sd = sensitive detector for pmts
183 */ 195 */
184 a = amin; 196 a = amin;
185 for (G4int j = 1; j <= na; ++j) { << 197 for(G4int j = 1; j <= na; ++j)
>> 198 {
186 a += da; 199 a += da;
187 b = bmin; 200 b = bmin;
188 for (G4int i = 1; i <= nb; ++i) { << 201 for(G4int i = 1; i <= nb; ++i)
>> 202 {
189 b += db; 203 b += db;
190 new G4PVPlacement(rot, G4ThreeVector(x, << 204 new G4PVPlacement(rot, G4ThreeVector(x, y, z), pmt_log, "pmt",
>> 205 fHousing_log, false, k);
191 fPmtPositions.push_back(G4ThreeVector(x, 206 fPmtPositions.push_back(G4ThreeVector(x, y, z));
192 ++k; 207 ++k;
193 } 208 }
194 } 209 }
195 } 210 }
196 211
197 //....oooOO0OOooo........oooOO0OOooo........oo 212 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
198 213
199 void LXeMainVolume::VisAttributes() 214 void LXeMainVolume::VisAttributes()
200 { 215 {
201 auto housing_va = new G4VisAttributes(G4Colo << 216 G4VisAttributes* housing_va = new G4VisAttributes(G4Colour(0.8, 0.8, 0.8));
202 fHousing_log->SetVisAttributes(housing_va); 217 fHousing_log->SetVisAttributes(housing_va);
203 218
204 auto sphere_va = new G4VisAttributes(); << 219 G4VisAttributes* sphere_va = new G4VisAttributes();
205 sphere_va->SetForceSolid(true); 220 sphere_va->SetForceSolid(true);
206 fSphere_log->SetVisAttributes(sphere_va); 221 fSphere_log->SetVisAttributes(sphere_va);
207 } 222 }
208 223
209 //....oooOO0OOooo........oooOO0OOooo........oo 224 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
210 225
211 void LXeMainVolume::SurfaceProperties() 226 void LXeMainVolume::SurfaceProperties()
212 { 227 {
213 std::vector<G4double> ephoton = {7.0 * eV, 7 << 228 std::vector<G4double> ephoton = { 7.0 * eV, 7.14 * eV };
214 229
215 //**Scintillator housing properties 230 //**Scintillator housing properties
216 std::vector<G4double> reflectivity = {fRefl, << 231 std::vector<G4double> reflectivity = { fRefl, fRefl };
217 std::vector<G4double> efficiency = {0.0, 0.0 << 232 std::vector<G4double> efficiency = { 0.0, 0.0 };
218 auto scintHsngPT = new G4MaterialPropertiesT << 233 G4MaterialPropertiesTable* scintHsngPT = new G4MaterialPropertiesTable();
219 scintHsngPT->AddProperty("REFLECTIVITY", eph 234 scintHsngPT->AddProperty("REFLECTIVITY", ephoton, reflectivity);
220 scintHsngPT->AddProperty("EFFICIENCY", ephot 235 scintHsngPT->AddProperty("EFFICIENCY", ephoton, efficiency);
221 auto OpScintHousingSurface = << 236 G4OpticalSurface* OpScintHousingSurface =
222 new G4OpticalSurface("HousingSurface", uni 237 new G4OpticalSurface("HousingSurface", unified, polished, dielectric_metal);
223 OpScintHousingSurface->SetMaterialProperties 238 OpScintHousingSurface->SetMaterialPropertiesTable(scintHsngPT);
224 239
225 //**Sphere surface properties 240 //**Sphere surface properties
226 std::vector<G4double> sphereReflectivity = { << 241 std::vector<G4double> sphereReflectivity = { 1.0, 1.0 };
227 std::vector<G4double> sphereEfficiency = {0. << 242 std::vector<G4double> sphereEfficiency = { 0.0, 0.0 };
228 auto spherePT = new G4MaterialPropertiesTabl << 243 G4MaterialPropertiesTable* spherePT = new G4MaterialPropertiesTable();
229 spherePT->AddProperty("REFLECTIVITY", ephoto 244 spherePT->AddProperty("REFLECTIVITY", ephoton, sphereReflectivity);
230 spherePT->AddProperty("EFFICIENCY", ephoton, 245 spherePT->AddProperty("EFFICIENCY", ephoton, sphereEfficiency);
231 auto OpSphereSurface = new G4OpticalSurface( << 246 G4OpticalSurface* OpSphereSurface =
>> 247 new G4OpticalSurface("SphereSurface", unified, polished, dielectric_metal);
232 OpSphereSurface->SetMaterialPropertiesTable( 248 OpSphereSurface->SetMaterialPropertiesTable(spherePT);
233 249
234 //**Photocathode surface properties 250 //**Photocathode surface properties
235 std::vector<G4double> photocath_EFF = {1., 1 << 251 std::vector<G4double> photocath_EFF = { 1., 1. };
236 std::vector<G4double> photocath_ReR = {1.92, << 252 std::vector<G4double> photocath_ReR = { 1.92, 1.92 };
237 std::vector<G4double> photocath_ImR = {1.69, << 253 std::vector<G4double> photocath_ImR = { 1.69, 1.69 };
238 auto photocath_mt = new G4MaterialProperties << 254 G4MaterialPropertiesTable* photocath_mt = new G4MaterialPropertiesTable();
239 photocath_mt->AddProperty("EFFICIENCY", epho 255 photocath_mt->AddProperty("EFFICIENCY", ephoton, photocath_EFF);
240 photocath_mt->AddProperty("REALRINDEX", epho 256 photocath_mt->AddProperty("REALRINDEX", ephoton, photocath_ReR);
241 photocath_mt->AddProperty("IMAGINARYRINDEX", 257 photocath_mt->AddProperty("IMAGINARYRINDEX", ephoton, photocath_ImR);
242 auto photocath_opsurf = << 258 G4OpticalSurface* photocath_opsurf = new G4OpticalSurface(
243 new G4OpticalSurface("photocath_opsurf", g << 259 "photocath_opsurf", glisur, polished, dielectric_metal);
244 photocath_opsurf->SetMaterialPropertiesTable 260 photocath_opsurf->SetMaterialPropertiesTable(photocath_mt);
245 261
246 //**Create logical skin surfaces 262 //**Create logical skin surfaces
247 new G4LogicalSkinSurface("photocath_surf", f << 263 new G4LogicalSkinSurface("photocath_surf", fHousing_log,
>> 264 OpScintHousingSurface);
248 new G4LogicalSkinSurface("sphere_surface", f 265 new G4LogicalSkinSurface("sphere_surface", fSphere_log, OpSphereSurface);
249 new G4LogicalSkinSurface("photocath_surf", f 266 new G4LogicalSkinSurface("photocath_surf", fPhotocath_log, photocath_opsurf);
250 } 267 }
251 268