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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 "globals.hh"
>> 32
31 #include "LXeMainVolume.hh" 33 #include "LXeMainVolume.hh"
32 34
33 #include "G4Box.hh" <<
34 #include "G4Colour.hh" <<
35 #include "G4LogicalBorderSurface.hh" <<
36 #include "G4LogicalSkinSurface.hh" 35 #include "G4LogicalSkinSurface.hh"
37 #include "G4LogicalVolume.hh" << 36 #include "G4LogicalBorderSurface.hh"
38 #include "G4Material.hh" << 37
39 #include "G4MaterialPropertiesTable.hh" <<
40 #include "G4OpticalSurface.hh" <<
41 #include "G4Sphere.hh" <<
42 #include "G4SystemOfUnits.hh" 38 #include "G4SystemOfUnits.hh"
43 #include "G4Tubs.hh" <<
44 #include "G4VisAttributes.hh" <<
45 #include "globals.hh" <<
46 39
47 //....oooOO0OOooo........oooOO0OOooo........oo 40 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
48 41
49 LXeMainVolume::LXeMainVolume(G4RotationMatrix* << 42 LXeMainVolume::LXeMainVolume(G4RotationMatrix *pRot,
50 G4LogicalVolume* << 43 const G4ThreeVector &tlate,
>> 44 G4LogicalVolume *pMotherLogical,
>> 45 G4bool pMany,
>> 46 G4int pCopyNo,
51 LXeDetectorConstr 47 LXeDetectorConstruction* c)
52 // Pass info to the G4PVPlacement constructo << 48 //Pass info to the G4PVPlacement constructor
53 : G4PVPlacement( << 49 :G4PVPlacement(pRot,tlate,
54 pRot, tlate, << 50 //Temp logical volume must be created here
55 // Temp logical volume must be created h << 51 new G4LogicalVolume(new G4Box("temp",1,1,1),
56 new G4LogicalVolume(new G4Box("temp", 1, << 52 G4Material::GetMaterial("Vacuum"),
57 "housing", pMotherLogical, pMany, pCopyN << 53 "temp",0,0,0),
58 fConstructor(c) << 54 "housing",pMotherLogical,pMany,pCopyNo),fConstructor(c)
59 { 55 {
60 CopyValues(); 56 CopyValues();
61 57
62 G4double housing_x = fScint_x + 2. * fD_mtl; << 58 G4double housing_x=fScint_x+2.*fD_mtl;
63 G4double housing_y = fScint_y + 2. * fD_mtl; << 59 G4double housing_y=fScint_y+2.*fD_mtl;
64 G4double housing_z = fScint_z + 2. * fD_mtl; << 60 G4double housing_z=fScint_z+2.*fD_mtl;
65 << 61
66 //*************************** housing and sc 62 //*************************** housing and scintillator
67 fScint_box = new G4Box("scint_box", fScint_x << 63 fScint_box = new G4Box("scint_box",fScint_x/2.,fScint_y/2.,fScint_z/2.);
68 fHousing_box = new G4Box("housing_box", hous << 64 fHousing_box = new G4Box("housing_box",housing_x/2.,housing_y/2.,
69 << 65 housing_z/2.);
70 fScint_log = new G4LogicalVolume(fScint_box, << 66
71 fHousing_log = new G4LogicalVolume(fHousing_ << 67 fScint_log = new G4LogicalVolume(fScint_box,G4Material::GetMaterial("LXe"),
72 << 68 "scint_log",0,0,0);
73 new G4PVPlacement(nullptr, G4ThreeVector(), << 69 fHousing_log = new G4LogicalVolume(fHousing_box,
74 << 70 G4Material::GetMaterial("Al"),
>> 71 "housing_log",0,0,0);
>> 72
>> 73 new G4PVPlacement(0,G4ThreeVector(),fScint_log,"scintillator",
>> 74 fHousing_log,false,0);
>> 75
75 //*************** Miscellaneous sphere to de 76 //*************** Miscellaneous sphere to demonstrate skin surfaces
76 fSphere = new G4Sphere("sphere", 0., 2. * cm << 77 fSphere = new G4Sphere("sphere",0.*mm,2.*cm,0.*deg,360.*deg,0.*deg,360.*deg);
77 fSphere_log = new G4LogicalVolume(fSphere, G << 78 fSphere_log = new G4LogicalVolume(fSphere,G4Material::GetMaterial("Al"),
78 if (fSphereOn) << 79 "sphere_log");
79 new G4PVPlacement(nullptr, G4ThreeVector(5 << 80 if(fSphereOn)
80 fScint_log, false, 0); << 81 new G4PVPlacement(0,G4ThreeVector(5.*cm,5.*cm,5.*cm),
81 << 82 fSphere_log,"sphere",fScint_log,false,0);
>> 83
82 //****************** Build PMTs 84 //****************** Build PMTs
83 G4double innerRadius_pmt = 0.; << 85 G4double innerRadius_pmt = 0.*cm;
84 G4double height_pmt = fD_mtl / 2.; << 86 G4double height_pmt = fD_mtl/2.;
85 G4double startAngle_pmt = 0.; << 87 G4double startAngle_pmt = 0.*deg;
86 G4double spanningAngle_pmt = 360. * deg; << 88 G4double spanningAngle_pmt = 360.*deg;
87 << 89
88 fPmt = new G4Tubs("pmt_tube", innerRadius_pm << 90 fPmt = new G4Tubs("pmt_tube",innerRadius_pmt,fOuterRadius_pmt,
89 spanningAngle_pmt); << 91 height_pmt,startAngle_pmt,spanningAngle_pmt);
90 << 92
91 // the "photocathode" is a metal slab at the << 93 //the "photocathode" is a metal slab at the back of the glass that
92 // is only a very rough approximation of the << 94 //is only a very rough approximation of the real thing since it only
93 // absorbs or detects the photons based on t << 95 //absorbs or detects the photons based on the efficiency set below
94 fPhotocath = new G4Tubs("photocath_tube", in << 96 fPhotocath = new G4Tubs("photocath_tube",innerRadius_pmt,fOuterRadius_pmt,
95 startAngle_pmt, span << 97 height_pmt/2,startAngle_pmt,spanningAngle_pmt);
96 << 98
97 fPmt_log = new G4LogicalVolume(fPmt, G4Mater << 99 fPmt_log = new G4LogicalVolume(fPmt,G4Material::GetMaterial("Glass"),
98 fPhotocath_log = new G4LogicalVolume(fPhotoc << 100 "pmt_log");
99 << 101 fPhotocath_log = new G4LogicalVolume(fPhotocath,
100 new G4PVPlacement(nullptr, G4ThreeVector(0., << 102 G4Material::GetMaterial("Al"),
101 fPmt_log, false, 0); << 103 "photocath_log");
102 << 104
>> 105 new G4PVPlacement(0,G4ThreeVector(0,0,-height_pmt/2),
>> 106 fPhotocath_log,"photocath",
>> 107 fPmt_log,false,0);
>> 108
103 //***********Arrange pmts around the outside 109 //***********Arrange pmts around the outside of housing**********
104 110
105 G4double dx = fScint_x / fNx; << 111 G4double dx = fScint_x/fNx;
106 G4double dy = fScint_y / fNy; << 112 G4double dy = fScint_y/fNy;
107 G4double dz = fScint_z / fNz; << 113 G4double dz = fScint_z/fNz;
108 << 114
109 G4double x, y, z; << 115 G4double x,y,z;
110 G4double xmin = -fScint_x / 2. - dx / 2.; << 116 G4double xmin = -fScint_x/2. - dx/2.;
111 G4double ymin = -fScint_y / 2. - dy / 2.; << 117 G4double ymin = -fScint_y/2. - dy/2.;
112 G4double zmin = -fScint_z / 2. - dz / 2.; << 118 G4double zmin = -fScint_z/2. - dz/2.;
113 G4int k = 0; << 119 G4int k=0;
114 << 120
115 z = -fScint_z / 2. - height_pmt; // front << 121 z = -fScint_z/2. - height_pmt; //front
116 PlacePMTs(fPmt_log, nullptr, x, y, dx, dy, x << 122 PlacePMTs(fPmt_log,0,x,y,dx,dy,xmin,ymin,fNx,fNy,x,y,z,k);
117 << 123
118 auto rm_z = new G4RotationMatrix(); << 124 G4RotationMatrix* rm_z = new G4RotationMatrix();
119 rm_z->rotateY(180. * deg); << 125 rm_z->rotateY(180*deg);
120 z = fScint_z / 2. + height_pmt; // back << 126 z = fScint_z/2. + height_pmt; //back
121 PlacePMTs(fPmt_log, rm_z, x, y, dx, dy, xmin << 127 PlacePMTs(fPmt_log,rm_z,x,y,dx,dy,xmin,ymin,fNx,fNy,x,y,z,k);
122 << 128
123 auto rm_y1 = new G4RotationMatrix(); << 129 G4RotationMatrix* rm_y1 = new G4RotationMatrix();
124 rm_y1->rotateY(-90. * deg); << 130 rm_y1->rotateY(-90*deg);
125 x = -fScint_x / 2. - height_pmt; // left << 131 x = -fScint_x/2. - height_pmt; //left
126 PlacePMTs(fPmt_log, rm_y1, y, z, dy, dz, ymi << 132 PlacePMTs(fPmt_log,rm_y1,y,z,dy,dz,ymin,zmin,fNy,fNz,x,y,z,k);
127 << 133
128 auto rm_y2 = new G4RotationMatrix(); << 134 G4RotationMatrix* rm_y2 = new G4RotationMatrix();
129 rm_y2->rotateY(90. * deg); << 135 rm_y2->rotateY(90*deg);
130 x = fScint_x / 2. + height_pmt; // right << 136 x = fScint_x/2. + height_pmt; //right
131 PlacePMTs(fPmt_log, rm_y2, y, z, dy, dz, ymi << 137 PlacePMTs(fPmt_log,rm_y2,y,z,dy,dz,ymin,zmin,fNy,fNz,x,y,z,k);
132 << 138
133 auto rm_x1 = new G4RotationMatrix(); << 139 G4RotationMatrix* rm_x1 = new G4RotationMatrix();
134 rm_x1->rotateX(90. * deg); << 140 rm_x1->rotateX(90*deg);
135 y = -fScint_y / 2. - height_pmt; // bottom << 141 y = -fScint_y/2. - height_pmt; //bottom
136 PlacePMTs(fPmt_log, rm_x1, x, z, dx, dz, xmi << 142 PlacePMTs(fPmt_log,rm_x1,x,z,dx,dz,xmin,zmin,fNx,fNz,x,y,z,k);
137 << 143
138 auto rm_x2 = new G4RotationMatrix(); << 144 G4RotationMatrix* rm_x2 = new G4RotationMatrix();
139 rm_x2->rotateX(-90. * deg); << 145 rm_x2->rotateX(-90*deg);
140 y = fScint_y / 2. + height_pmt; // top << 146 y = fScint_y/2. + height_pmt; //top
141 PlacePMTs(fPmt_log, rm_x2, x, z, dx, dz, xmi << 147 PlacePMTs(fPmt_log,rm_x2,x,z,dx,dz,xmin,zmin,fNx,fNz,x,y,z,k);
142 << 148
143 VisAttributes(); 149 VisAttributes();
144 SurfaceProperties(); 150 SurfaceProperties();
145 151
146 SetLogicalVolume(fHousing_log); 152 SetLogicalVolume(fHousing_log);
147 } 153 }
148 154
149 //....oooOO0OOooo........oooOO0OOooo........oo 155 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
150 156
151 void LXeMainVolume::CopyValues() << 157 void LXeMainVolume::CopyValues(){
152 { << 158 fScint_x=fConstructor->GetScintX();
153 fScint_x = fConstructor->GetScintX(); << 159 fScint_y=fConstructor->GetScintY();
154 fScint_y = fConstructor->GetScintY(); << 160 fScint_z=fConstructor->GetScintZ();
155 fScint_z = fConstructor->GetScintZ(); << 161 fD_mtl=fConstructor->GetHousingThickness();
156 fD_mtl = fConstructor->GetHousingThickness() << 162 fNx=fConstructor->GetNX();
157 fNx = fConstructor->GetNX(); << 163 fNy=fConstructor->GetNY();
158 fNy = fConstructor->GetNY(); << 164 fNz=fConstructor->GetNZ();
159 fNz = fConstructor->GetNZ(); << 165 fOuterRadius_pmt=fConstructor->GetPMTRadius();
160 fOuterRadius_pmt = fConstructor->GetPMTRadiu << 166 fSphereOn=fConstructor->GetSphereOn();
161 fSphereOn = fConstructor->GetSphereOn(); << 167 fRefl=fConstructor->GetHousingReflectivity();
162 fRefl = fConstructor->GetHousingReflectivity <<
163 } 168 }
164 169
165 //....oooOO0OOooo........oooOO0OOooo........oo 170 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
166 171
167 void LXeMainVolume::PlacePMTs(G4LogicalVolume* << 172 void LXeMainVolume::PlacePMTs(G4LogicalVolume* pmt_log,
168 G4double& b, G4d << 173 G4RotationMatrix *rot,
169 G4int na, G4int << 174 G4double &a, G4double &b, G4double da,
170 { << 175 G4double db, G4double amin,
171 /* PlacePMTs : a different way to parameter << 176 G4double bmin, G4int na, G4int nb,
172 * on calculating the position from the copy << 177 G4double &x, G4double &y, G4double &z,
173 * << 178 G4int &k){
174 * pmt_log = logical volume for pmts to be << 179 /*PlacePMTs : a different way to parameterize placement that does not depend on
175 * rot = rotation matrix to apply << 180 calculating the position from the copy number
176 * a,b = coordinates to vary(ie. if varying << 181
177 * da,db = value to increment a,b by << 182 pmt_log = logical volume for pmts to be placed
178 * amin,bmin = start values for a,b << 183 rot = rotation matrix to apply
179 * na,nb = number of repitions in a and b << 184 a,b = coordinates to vary(ie. if varying in the xy plane then pass x,y)
180 * x,y,z = just pass x,y, and z by referenc << 185 da,db = value to increment a,b by
181 * k = copy number to start with << 186 amin,bmin = start values for a,b
182 * sd = sensitive detector for pmts << 187 na,nb = number of repitions in a and b
183 */ << 188 x,y,z = just pass x,y, and z by reference (the same ones passed for a,b)
184 a = amin; << 189 k = copy number to start with
185 for (G4int j = 1; j <= na; ++j) { << 190 sd = sensitive detector for pmts
186 a += da; << 191 */
187 b = bmin; << 192 a=amin;
188 for (G4int i = 1; i <= nb; ++i) { << 193 for(G4int j=1;j<=na;j++){
189 b += db; << 194 a+=da;
190 new G4PVPlacement(rot, G4ThreeVector(x, << 195 b=bmin;
191 fPmtPositions.push_back(G4ThreeVector(x, << 196 for(G4int i=1;i<=nb;i++){
192 ++k; << 197 b+=db;
>> 198 new G4PVPlacement(rot,G4ThreeVector(x,y,z),pmt_log,"pmt",
>> 199 fHousing_log,false,k);
>> 200 fPmtPositions.push_back(G4ThreeVector(x,y,z));
>> 201 k++;
193 } 202 }
194 } 203 }
195 } 204 }
196 205
197 //....oooOO0OOooo........oooOO0OOooo........oo 206 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
198 207
199 void LXeMainVolume::VisAttributes() << 208 void LXeMainVolume::VisAttributes(){
200 { << 209 G4VisAttributes* housing_va = new G4VisAttributes(G4Colour(0.8,0.8,0.8));
201 auto housing_va = new G4VisAttributes(G4Colo <<
202 fHousing_log->SetVisAttributes(housing_va); 210 fHousing_log->SetVisAttributes(housing_va);
203 211
204 auto sphere_va = new G4VisAttributes(); << 212 G4VisAttributes* sphere_va = new G4VisAttributes();
205 sphere_va->SetForceSolid(true); 213 sphere_va->SetForceSolid(true);
206 fSphere_log->SetVisAttributes(sphere_va); 214 fSphere_log->SetVisAttributes(sphere_va);
207 } 215 }
208 216
209 //....oooOO0OOooo........oooOO0OOooo........oo 217 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
210 218
211 void LXeMainVolume::SurfaceProperties() << 219 void LXeMainVolume::SurfaceProperties(){
212 { << 220 G4double ephoton[] = {7.0*eV, 7.14*eV};
213 std::vector<G4double> ephoton = {7.0 * eV, 7 << 221 const G4int num = sizeof(ephoton)/sizeof(G4double);
214 222
215 //**Scintillator housing properties 223 //**Scintillator housing properties
216 std::vector<G4double> reflectivity = {fRefl, << 224 G4double reflectivity[] = {fRefl, fRefl};
217 std::vector<G4double> efficiency = {0.0, 0.0 << 225 assert(sizeof(reflectivity) == sizeof(ephoton));
218 auto scintHsngPT = new G4MaterialPropertiesT << 226 G4double efficiency[] = {0.0, 0.0};
219 scintHsngPT->AddProperty("REFLECTIVITY", eph << 227 assert(sizeof(efficiency) == sizeof(ephoton));
220 scintHsngPT->AddProperty("EFFICIENCY", ephot << 228 G4MaterialPropertiesTable* scintHsngPT = new G4MaterialPropertiesTable();
221 auto OpScintHousingSurface = << 229 scintHsngPT->AddProperty("REFLECTIVITY", ephoton, reflectivity, num);
222 new G4OpticalSurface("HousingSurface", uni << 230 scintHsngPT->AddProperty("EFFICIENCY", ephoton, efficiency, num);
>> 231 G4OpticalSurface* OpScintHousingSurface =
>> 232 new G4OpticalSurface("HousingSurface",unified,polished,dielectric_metal);
223 OpScintHousingSurface->SetMaterialProperties 233 OpScintHousingSurface->SetMaterialPropertiesTable(scintHsngPT);
224 << 234
225 //**Sphere surface properties 235 //**Sphere surface properties
226 std::vector<G4double> sphereReflectivity = { << 236 G4double sphereReflectivity[] = {1.0, 1.0};
227 std::vector<G4double> sphereEfficiency = {0. << 237 assert(sizeof(sphereReflectivity) == sizeof(ephoton));
228 auto spherePT = new G4MaterialPropertiesTabl << 238 G4double sphereEfficiency[] = {0.0, 0.0};
229 spherePT->AddProperty("REFLECTIVITY", ephoto << 239 assert(sizeof(sphereEfficiency) == sizeof(ephoton));
230 spherePT->AddProperty("EFFICIENCY", ephoton, << 240 G4MaterialPropertiesTable* spherePT = new G4MaterialPropertiesTable();
231 auto OpSphereSurface = new G4OpticalSurface( << 241 spherePT->AddProperty("REFLECTIVITY", ephoton, sphereReflectivity, num);
>> 242 spherePT->AddProperty("EFFICIENCY", ephoton, sphereEfficiency, num);
>> 243 G4OpticalSurface* OpSphereSurface =
>> 244 new G4OpticalSurface("SphereSurface",unified,polished,dielectric_metal);
232 OpSphereSurface->SetMaterialPropertiesTable( 245 OpSphereSurface->SetMaterialPropertiesTable(spherePT);
233 << 246
234 //**Photocathode surface properties 247 //**Photocathode surface properties
235 std::vector<G4double> photocath_EFF = {1., 1 << 248 G4double photocath_EFF[]={1.,1.}; //Enables 'detection' of photons
236 std::vector<G4double> photocath_ReR = {1.92, << 249 assert(sizeof(photocath_EFF) == sizeof(ephoton));
237 std::vector<G4double> photocath_ImR = {1.69, << 250 G4double photocath_ReR[]={1.92,1.92};
238 auto photocath_mt = new G4MaterialProperties << 251 assert(sizeof(photocath_ReR) == sizeof(ephoton));
239 photocath_mt->AddProperty("EFFICIENCY", epho << 252 G4double photocath_ImR[]={1.69,1.69};
240 photocath_mt->AddProperty("REALRINDEX", epho << 253 assert(sizeof(photocath_ImR) == sizeof(ephoton));
241 photocath_mt->AddProperty("IMAGINARYRINDEX", << 254 G4MaterialPropertiesTable* photocath_mt = new G4MaterialPropertiesTable();
242 auto photocath_opsurf = << 255 photocath_mt->AddProperty("EFFICIENCY",ephoton,photocath_EFF,num);
243 new G4OpticalSurface("photocath_opsurf", g << 256 photocath_mt->AddProperty("REALRINDEX",ephoton,photocath_ReR,num);
>> 257 photocath_mt->AddProperty("IMAGINARYRINDEX",ephoton,photocath_ImR,num);
>> 258 G4OpticalSurface* photocath_opsurf=
>> 259 new G4OpticalSurface("photocath_opsurf",glisur,polished,
>> 260 dielectric_metal);
244 photocath_opsurf->SetMaterialPropertiesTable 261 photocath_opsurf->SetMaterialPropertiesTable(photocath_mt);
245 262
246 //**Create logical skin surfaces 263 //**Create logical skin surfaces
247 new G4LogicalSkinSurface("photocath_surf", f << 264 new G4LogicalSkinSurface("photocath_surf",fHousing_log,
248 new G4LogicalSkinSurface("sphere_surface", f << 265 OpScintHousingSurface);
249 new G4LogicalSkinSurface("photocath_surf", f << 266 new G4LogicalSkinSurface("sphere_surface",fSphere_log,OpSphereSurface);
>> 267 new G4LogicalSkinSurface("photocath_surf",fPhotocath_log,photocath_opsurf);
250 } 268 }
251 269