source: trunk/examples/advanced/raredecay_calorimetry/src/PhotInDetectorConstruction.cc@ 1279

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27// $Id: PhotInDetectorConstruction.cc,v 1.5 2006/06/29 16:25:09 gunter Exp $
28// GEANT4 tag $Name: $
29//
30// ***************************************************************************
31
32//#define debug
33
34#include "PhotInDetectorConstruction.hh"
35
36// all BODY variables must be initialized in this constructor
37PhotInDetectorConstruction::PhotInDetectorConstruction(G4double x,G4double y,G4double z):
38 numberOfLayers(PhotInNOfLayers),numberOfSlabs(PhotInNOfSlabs),
39 samplingFraction(PhotInSampFract),xHD(x),yHD(y),zHD(z),serial(false),
40 worldMaterial(0),absorberMaterial(0),gapMaterial(0),layerSolid(0),slabSolid(0)
41{
42#ifdef debug
43 G4cout<<"PhotInDetectorConstruction::Constructor is called"<<G4endl;
44#endif
45 layerParam = new PhotInLayerParameterisation; // should it be deleted in Distructor?MK
46 layerParam->SetNumberOfLayers(numberOfLayers); // 9 by default (can be changed)
47 layerParam->SetHalfTotalThickness(zHD); // transfer totalThickness of theSection
48 G4double hlth=zHD/numberOfLayers; // Calculate thickness of one layer
49 gapParam = new PhotInGapParameterisation; // should it be deleted in Distructor?MK
50 gapParam->SetNumberOfSlabs(numberOfSlabs); // 9 by default (can be changed)
51 gapParam->SetHalfTotalWidth(yHD); // Transfer
52 gapParam->SetHalfTotalLayerThickness(hlth); // Transfer
53 gapParam->SetSamplingFraction(samplingFraction); // Transfer
54 PhotInCalorimeterSD::SetNumberOfLayers(numberOfLayers);// Construction of sensitiveLayers
55 PhotInCalorimeterSD::SetNumberOfSlabs(numberOfSlabs); // Construction of sensitiveSlabs
56 DefineMaterials(); // Material factory
57
58 for(G4int i=0; i<PhotInNumSections ;i++)
59 {
60 calorLogical[i]=0;
61 layerLogical[i]=0;
62 slabLogical[i]=0;
63 calorPhysical[i]=0;
64 layerPhysical[i]=0;
65 slabPhysical[i]=0;
66 }
67}
68
69PhotInDetectorConstruction::~PhotInDetectorConstruction()
70{
71 //delete gapParam; // Try to open later to be sure that it is not delited by G4
72 //delete layerParam; // Try to open later to be sure that it is not delited by G4
73}
74
75void PhotInDetectorConstruction::DefineMaterials() // Material factory (@@ can be in Const)
76{
77 G4String name, symbol; // a = mean_atomic_mass, z = mean_number_of_protons
78 G4double a, z, density; //iz=number of protons in an isotope;
79 G4int iz, in; //in=number of nucleons in an isotope;
80
81 G4int ncomponents, natoms;
82 G4double abundance, fractionmass;
83 G4double temperature, pressure;
84 //
85 // define Elements
86 //
87 G4Element* H = new G4Element(name="Hydrogen",symbol="H" , z= 1., a=1.01*g/mole);
88 G4Element* C = new G4Element(name="Carbon" ,symbol="C" , z= 6., a=12.01*g/mole);
89 G4Element* N = new G4Element(name="Nitrogen",symbol="N" , z= 7., a=14.01*g/mole);
90 G4Element* O = new G4Element(name="Oxygen" ,symbol="O" , z= 8., a=16.00*g/mole);
91 //
92 // define an Element from isotopes, by relative abundance
93 //
94 G4Isotope* U5 = new G4Isotope(name="U235", iz=92, in=235, a=235.01*g/mole); // @@ Corr.
95 G4Isotope* U8 = new G4Isotope(name="U238", iz=92, in=238, a=238.03*g/mole); // @@ Corr.
96
97 G4Element* U = new G4Element(name="enriched Uranium", symbol="U", ncomponents=2);
98 U->AddIsotope(U5, abundance= 90.*perCent);
99 U->AddIsotope(U8, abundance= 10.*perCent);
100 //
101 // define simple materials
102 //
103 G4Material* Al = new G4Material(name="Aluminium",z=13.,a=26.98*g/mole,density=2.7*g/cm3);
104
105 //density = 1.390*g/cm3;
106 //a = 39.95*g/mole;
107 //G4Material* lAr = new G4Material(name="liquidArgon", z=18., a, density);
108
109 //density = 11.35*g/cm3;
110 //a = 207.19*g/mole;
111 //G4Material* Pb = new G4Material(name="Lead" , z=82., a, density);
112 //
113 // define complex materials. case 1: chemical molecule
114 //
115 density = 1.000*g/cm3;
116 G4Material* H2O = new G4Material(name="Water", density, ncomponents=2);
117 H2O->AddElement(H, natoms=2);
118 H2O->AddElement(O, natoms=1);
119
120 density = 1.032*g/cm3;
121 G4Material* Sci = new G4Material(name="Scintillator", density, ncomponents=2);
122 Sci->AddElement(C, natoms=9);
123 Sci->AddElement(H, natoms=10);
124 //
125 // define complex material. case 2: mixture by fractional mass
126 //
127 density = 1.290*mg/cm3;
128 G4Material* Air = new G4Material(name="Air" , density, ncomponents=2);
129 Air->AddElement(N, fractionmass=0.7);
130 Air->AddElement(O, fractionmass=0.3);
131 //
132 // examples of vacuum
133 //
134 density = universe_mean_density;
135 pressure = 3.e-18*pascal;
136 temperature = 2.73*kelvin;
137 a=1.01*g/mole; // Kosmic
138 z=1.; // Hydrogrn
139 G4Material* Vacuum=new G4Material(name="Vac",z,a,density,kStateGas,temperature,pressure);
140
141#ifdef debug
142 G4cout<<"PhotInDetectorConstruction::DefineMaterials:"<<*(G4Material::GetMaterialTable())
143 <<G4endl;
144#endif
145
146 //default materials of the calorimeter
147 worldMaterial = Vacuum;
148 absorberMaterial = Al;
149 gapMaterial = Sci;
150 layerParam->SetAbsorberMaterial(absorberMaterial);
151 gapParam->SetGapMaterial(gapMaterial);
152}
153
154G4VPhysicalVolume* PhotInDetectorConstruction::Construct()
155{
156 // Definition of Logical and Physical volumes
157 G4LogicalVolume* worldLogical; // One logical volume for the World
158 G4VPhysicalVolume* worldPhysical; // One Physical volume for the World
159
160 G4double shiftY=yHD+yHD; // shift perpendicular to slabs
161 G4double shiftZ=zHD+zHD; // shift perpendicular to layers
162 G4double wxHD=xHD+0.5*m; // along slabs
163 G4double wyHD=shiftY+yHD+0.5*m; // perpendicular to slabs
164 G4double wzHD=shiftZ+zHD+0.5*m; // perpendicular to layers
165 //
166 // World volume: Solid=BOX, make Logical, make Physical
167 // ====================================================
168 G4VSolid* worldSolid = new G4Box("World",wxHD,wyHD,wzHD);
169 worldLogical = new G4LogicalVolume(worldSolid,worldMaterial,"World");
170 worldPhysical = new G4PVPlacement(0,G4ThreeVector(),worldLogical,"World",0,false,0);
171 //
172 // Calorimeter Section: Solid=BOX, make 3 Logical and 3 serial/parallel Physical
173 // =============================================================================
174 G4VSolid* calorSolid = new G4Box("CalorSect",xHD,yHD,zHD);
175 G4int i; // If i is used many times it is btter to define it as external var. for LOOPs
176 for(i=0; i<PhotInNumSections; i++)
177 {
178 calorLogical[i] = new G4LogicalVolume(calorSolid,absorberMaterial,PhotInCalName[i]);
179 if(serial) // if true = one section after another (serial)
180 calorPhysical[i] = new G4PVPlacement(0, G4ThreeVector(0.,0.,(i-1)*shiftZ),
181 calorLogical[i],PhotInCalName[i],worldLogical,false,i);
182 else // *DEFAULT* false = side by side (parallel)
183 calorPhysical[i] = new G4PVPlacement(0, G4ThreeVector(0.,G4double(i-1)*shiftY,0.),
184 calorLogical[i],PhotInCalName[i],worldLogical,false,i);
185 }
186 //
187 // Layers & Slabs: Solid=BOX. First Active (samplFract thick div in slabs), then Absorber
188 //
189 G4double layerZ=zHD/numberOfLayers; // Half thickness of one layer
190 G4double slabY=yHD/numberOfSlabs; // Half width of one active slab
191 layerSolid = new G4Box("Layer",xHD,yHD,layerZ);
192 slabSolid = new G4Box("Gap",xHD,slabY,layerZ*samplingFraction);
193 for(i=0; i<PhotInNumSections; i++) // Construct layers for all sections
194 {
195 layerLogical[i] = new G4LogicalVolume(layerSolid,absorberMaterial,"Layer");
196 layerPhysical[i] = new G4PVParameterised("Layer", layerLogical[i], calorLogical[i],
197 kZAxis, numberOfLayers, layerParam);
198 slabLogical[i] = new G4LogicalVolume(slabSolid,gapMaterial,"Slab");
199 slabPhysical[i] = new G4PVParameterised("Slab", slabLogical[i], layerLogical[i],
200 kYAxis, numberOfSlabs, gapParam);
201 }
202 //
203 // Regions
204 //
205 for(i=0; i<PhotInNumSections; i++)
206 {
207 G4Region* aRegion = new G4Region(PhotInRegName[i]);
208 calorLogical[i]->SetRegion(aRegion); // Mutual
209 aRegion->AddRootLogicalVolume(calorLogical[i]); // definition
210 }
211 //
212 // Sensitive Detectors: Absorber and Gap
213 //
214 G4SDManager* SDman = G4SDManager::GetSDMpointer(); // Manager of sensitive detectors
215 for(i=0; i<PhotInNumSections ;i++)
216 {
217 G4VSensitiveDetector* calorSD = new PhotInCalorimeterSD(PhotInDetName[i]); // Sections
218 SDman->AddNewDetector(calorSD); // all section is a sensitive detector
219 layerLogical[i]->SetSensitiveDetector(calorSD);// Make layers to be sensitive detectors
220 slabLogical[i]->SetSensitiveDetector(calorSD); // Make slabs to be sensitive detectors
221 }
222 //
223 // Visualization attributes
224 //
225 worldLogical->SetVisAttributes(G4VisAttributes::Invisible);
226 G4VisAttributes* simpleBoxVisAtt= new G4VisAttributes(G4Colour(1.,1.,1.));
227 simpleBoxVisAtt->SetVisibility(true);
228 for(i=0;i<PhotInNumSections;i++)
229 {
230 calorLogical[i]->SetVisAttributes(simpleBoxVisAtt);
231 layerLogical[i]->SetVisAttributes(simpleBoxVisAtt);
232 slabLogical[i]->SetVisAttributes(simpleBoxVisAtt);
233 }
234#ifdef debug
235 G4cout<<"PhotInDetectorConstruction::Construct:"<<G4endl;
236 PrintCalorParameters();
237#endif
238 return worldPhysical;
239}
240
241void PhotInDetectorConstruction::PrintCalorParameters() const
242{
243 G4cout << "----PhotInDetectorConstruction::PrintCalorParameters()-----" << G4endl;
244 if(serial) G4cout << " Calorimeters are placed in serial." << G4endl;
245 else G4cout << " Calorimeters are placed in parallel." << G4endl;
246 G4cout << " Absorber is made of " << absorberMaterial->GetName() << G4endl;
247 G4cout << " Gap is made of " << gapMaterial->GetName() << G4endl;
248 G4cout << "--------------------------------------------------------" << G4endl;
249}
250
251void PhotInDetectorConstruction::SetAbsorberMaterial(G4String materialChoice)
252{
253#ifdef debug
254 G4cout<<"PhotInDetectorConstruction::SetAbsorberMaterial: "<<materialChoice<<G4endl;
255#endif
256 // search the material by its name
257 G4Material* pttoMaterial = G4Material::GetMaterial(materialChoice);
258 if(pttoMaterial)
259 {
260 absorberMaterial = pttoMaterial;
261 layerParam->SetAbsorberMaterial(pttoMaterial);
262 for(G4int i=0; i<PhotInNumSections; i++)
263 {
264 calorLogical[i]->SetMaterial(absorberMaterial);
265 layerLogical[i]->SetMaterial(absorberMaterial);
266 }
267 }
268 else G4cerr<<"PhotInDetectorConst::SetAbsM:"<<materialChoice<<" is not defined."<<G4endl;
269}
270
271void PhotInDetectorConstruction::SetGapMaterial(G4String materialChoice)
272{
273#ifdef debug
274 G4cout<<"PhotInDetectorConstruction::SetGapMaterial: "<<materialChoice<<G4endl;
275#endif
276 // search the material by its name
277 G4Material* pttoMaterial = G4Material::GetMaterial(materialChoice);
278 if(pttoMaterial)
279 {
280 gapMaterial = pttoMaterial;
281 gapParam->SetGapMaterial(pttoMaterial);
282 }
283 else G4cerr<<"PhotInDetectorConst::SetGapM:"<<materialChoice<<" is not defined."<<G4endl;
284}
285
286void PhotInDetectorConstruction::SetSerialGeometry(G4bool ser)
287{
288#ifdef debug
289 G4cout<<"PhotInDetectorConstruction::SetSerialGeometry: "<<ser<<G4endl;
290#endif
291 if(serial==ser) return; // Do nothing if serialization is the same
292 serial=ser;
293 G4double shiftZ=zHD+zHD; // shift perpendicular to layers
294 G4double shiftY=yHD+yHD; // shift perpendicular to slabs
295 for(G4int i=0; i<PhotInNumSections; i++)
296 {
297 if(serial) calorPhysical[i]->SetTranslation(G4ThreeVector(0.,0.,(i-1)*shiftZ));
298 else calorPhysical[i]->SetTranslation(G4ThreeVector(0.,(i-1)*shiftY,0.));
299 }
300 G4RunManager::GetRunManager()->GeometryHasBeenModified();
301}
302
303void PhotInDetectorConstruction::SetNumberOfLayers(G4int nl)
304{
305#ifdef debug
306 G4cout<<"PhotInDetectorConstruction::SetNumberOfLayers: "<<nl<<G4endl;
307#endif
308 numberOfLayers = nl;
309 layerSolid->SetZHalfLength(zHD/numberOfLayers);
310 layerParam->SetNumberOfLayers(nl);
311 for(G4int i=0; i<PhotInNumSections; i++)
312 {
313 if(layerPhysical[i])
314 {
315 if(slabPhysical[i])
316 {
317 layerLogical[i]->RemoveDaughter(slabPhysical[i]);
318 delete slabPhysical[i];
319 }
320 calorLogical[i]->RemoveDaughter(layerPhysical[i]);
321 delete layerPhysical[i];
322 }
323 layerPhysical[i] = new G4PVParameterised("Layer", layerLogical[i], calorLogical[i],
324 kZAxis , numberOfLayers , layerParam);
325 slabPhysical[i] = new G4PVParameterised("Slab", slabLogical[i], layerLogical[i],
326 kYAxis , numberOfSlabs , gapParam);
327 }
328 PhotInCalorimeterSD::SetNumberOfLayers(nl);
329 G4RunManager::GetRunManager()->GeometryHasBeenModified();
330}
331
332void PhotInDetectorConstruction::SetNumberOfSlabs(G4int sn)
333{
334#ifdef debug
335 G4cout<<"PhotInDetectorConstruction::SetNumberOfSlabs: "<<sn<<G4endl;
336#endif
337 numberOfSlabs = sn;
338 slabSolid->SetZHalfLength(yHD/sn);
339 gapParam->SetNumberOfSlabs(sn);
340 for(G4int i=0; i<PhotInNumSections; i++)
341 {
342 if(slabPhysical[i])
343 {
344 layerLogical[i]->RemoveDaughter(slabPhysical[i]);
345 delete slabPhysical[i];
346 }
347 slabPhysical[i] = new G4PVParameterised("Slab", slabLogical[i], layerLogical[i],
348 kYAxis , numberOfSlabs , gapParam);
349 }
350 PhotInCalorimeterSD::SetNumberOfSlabs(sn);
351 G4RunManager::GetRunManager()->GeometryHasBeenModified();
352}
353
354void PhotInDetectorConstruction::CreateMaterial(G4String materialChoice)
355{
356#ifdef debug
357 G4cout<<"PhotInDetectorConstruction::CreateMaterial: "<<materialChoice<<G4endl;
358#endif
359 if(G4Material::GetMaterial(materialChoice) != 0) return;
360
361 G4double a, z, density;
362 // List of possible new materials (Material Factory)
363 if (materialChoice == "Silicon")
364 new G4Material("Silicon", z=14., a= 28.09*g/mole, density= 2.33*g/cm3);
365 else if (materialChoice =="Iron")
366 new G4Material("Iron", z=26., a=55.85*g/mole, density=7.87*g/cm3);
367 else if (materialChoice =="ArgonGas")
368 new G4Material("ArgonGas",z=18., a= 39.95*g/mole, density=1.782*mg/cm3);
369 else if (materialChoice =="He")
370 new G4Material("He", z=2., a=4.0*g/mole, density=0.1786e-03*g/cm3);
371 else G4cerr<<"**PhotInDetectorConstruction::CreateMaterial: No "<<materialChoice<<G4endl;
372}
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