source: trunk/examples/extended/biasing/B01/src/B01DetectorConstruction.cc@ 1036

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26//
27// $Id: B01DetectorConstruction.cc,v 1.20 2007/06/22 13:15:29 ahoward Exp $
28// GEANT4 tag $Name: $
29//
30
31#include "G4Types.hh"
32#include <sstream>
33#include <set>
34#include "globals.hh"
35
36#include "B01DetectorConstruction.hh"
37
38#include "G4Material.hh"
39#include "G4Box.hh"
40#include "G4Tubs.hh"
41#include "G4LogicalVolume.hh"
42#include "G4ThreeVector.hh"
43#include "G4PVPlacement.hh"
44#include "G4VisAttributes.hh"
45#include "G4Colour.hh"
46
47// For Primitive Scorers
48#include "G4SDManager.hh"
49#include "G4MultiFunctionalDetector.hh"
50#include "G4SDParticleFilter.hh"
51#include "G4PSNofCollision.hh"
52#include "G4PSPopulation.hh"
53#include "G4PSTrackCounter.hh"
54#include "G4PSTrackLength.hh"
55
56// for importance biasing
57#include "G4IStore.hh"
58
59// for weight window technique
60#include "G4WeightWindowStore.hh"
61
62B01DetectorConstruction::B01DetectorConstruction() :
63 fPhysicalVolumeVector(),fLogicalVolumeVector()
64{;}
65
66B01DetectorConstruction::~B01DetectorConstruction()
67{;}
68
69G4VPhysicalVolume* B01DetectorConstruction::Construct()
70{
71 G4double pos_x;
72 G4double pos_y;
73 G4double pos_z;
74
75 G4double density, pressure, temperature;
76 G4double A;
77 G4int Z;
78
79 G4String name, symbol;
80 G4double z;
81 G4double fractionmass;
82
83 A = 1.01*g/mole;
84 G4Element* elH = new G4Element(name="Hydrogen",symbol="H" , Z= 1, A);
85
86 A = 12.01*g/mole;
87 G4Element* elC = new G4Element(name="Carbon" ,symbol="C" , Z = 6, A);
88
89 A = 16.00*g/mole;
90 G4Element* elO = new G4Element(name="Oxygen" ,symbol="O" , Z= 8, A);
91
92 A = 22.99*g/mole;
93 G4Element* elNa = new G4Element(name="Natrium" ,symbol="Na" , Z=11 , A);
94
95 A = 200.59*g/mole;
96 G4Element* elHg = new G4Element(name="Hg" ,symbol="Hg" , Z=80, A);
97
98 A = 26.98*g/mole;
99 G4Element* elAl = new G4Element(name="Aluminium" ,symbol="Al" , Z=13, A);
100
101 A = 28.09*g/mole;
102 G4Element* elSi = new G4Element(name="Silicon", symbol="Si", Z=14, A);
103
104 A = 39.1*g/mole;
105 G4Element* elK = new G4Element(name="K" ,symbol="K" , Z=19 , A);
106
107 A = 69.72*g/mole;
108 G4Element* elCa = new G4Element(name="Calzium" ,symbol="Ca" , Z=31 , A);
109
110 A = 55.85*g/mole;
111 G4Element* elFe = new G4Element(name="Iron" ,symbol="Fe", Z=26, A);
112
113 density = universe_mean_density; //from PhysicalConstants.h
114 pressure = 3.e-18*pascal;
115 temperature = 2.73*kelvin;
116 G4Material *Galactic =
117 new G4Material(name="Galactic", z=1., A=1.01*g/mole, density,
118 kStateGas,temperature,pressure);
119
120 density = 2.03*g/cm3;
121 G4Material* Concrete = new G4Material("Concrete", density, 10);
122 Concrete->AddElement(elH , fractionmass= 0.01);
123 Concrete->AddElement(elO , fractionmass= 0.529);
124 Concrete->AddElement(elNa , fractionmass= 0.016);
125 Concrete->AddElement(elHg , fractionmass= 0.002);
126 Concrete->AddElement(elAl , fractionmass= 0.034);
127 Concrete->AddElement(elSi , fractionmass= 0.337);
128 Concrete->AddElement(elK , fractionmass= 0.013);
129 Concrete->AddElement(elCa , fractionmass= 0.044);
130 Concrete->AddElement(elFe , fractionmass= 0.014);
131 Concrete->AddElement(elC , fractionmass= 0.001);
132
133 /////////////////////////////
134 // world cylinder volume
135 ////////////////////////////
136
137 // world solid
138
139 G4double innerRadiusCylinder = 0*cm;
140 G4double outerRadiusCylinder = 100*cm;
141 G4double hightCylinder = 100*cm;
142 G4double startAngleCylinder = 0*deg;
143 G4double spanningAngleCylinder = 360*deg;
144
145 G4Tubs *worldCylinder = new G4Tubs("worldCylinder",
146 innerRadiusCylinder,
147 outerRadiusCylinder,
148 hightCylinder,
149 startAngleCylinder,
150 spanningAngleCylinder);
151
152 // logical world
153
154 G4LogicalVolume *worldCylinder_log =
155 new G4LogicalVolume(worldCylinder, Galactic, "worldCylinder_log");
156 fLogicalVolumeVector.push_back(worldCylinder_log);
157
158 name = "shieldWorld";
159 pWorldVolume = new
160 G4PVPlacement(0, G4ThreeVector(0,0,0), worldCylinder_log,
161 name, 0, false, 0);
162
163
164 fPhysicalVolumeVector.push_back(pWorldVolume);
165
166 // creating 18 slabs of 10 cm thick concrete
167
168 G4double innerRadiusShield = 0*cm;
169 G4double outerRadiusShield = 100*cm;
170 G4double hightShield = 5*cm;
171 G4double startAngleShield = 0*deg;
172 G4double spanningAngleShield = 360*deg;
173
174 G4Tubs *aShield = new G4Tubs("aShield",
175 innerRadiusShield,
176 outerRadiusShield,
177 hightShield,
178 startAngleShield,
179 spanningAngleShield);
180
181 // logical shield
182
183 G4LogicalVolume *aShield_log =
184 new G4LogicalVolume(aShield, Concrete, "aShield_log");
185 fLogicalVolumeVector.push_back(aShield_log);
186
187 G4VisAttributes* pShieldVis = new G4VisAttributes(G4Colour(0.0,0.0,1.0));
188 pShieldVis->SetForceSolid(true);
189 aShield_log->SetVisAttributes(pShieldVis);
190
191 // physical shields
192
193 G4int i;
194 G4double startz = -85*cm;
195 for (i=1; i<=18; i++)
196 {
197 name = GetCellName(i);
198 G4double pos_x = 0*cm;
199 G4double pos_y = 0*cm;
200 G4double pos_z = startz + (i-1) * (2*hightShield);
201 G4VPhysicalVolume *pvol =
202 new G4PVPlacement(0,
203 G4ThreeVector(pos_x, pos_y, pos_z),
204 aShield_log,
205 name,
206 worldCylinder_log,
207 false,
208 i);
209 fPhysicalVolumeVector.push_back(pvol);
210 }
211
212 // filling the rest of the world volume behind the concrete with
213 // another slab which should get the same importance value
214 // or lower weight bound as the last slab
215 //
216 innerRadiusShield = 0*cm;
217 outerRadiusShield = 100*cm;
218 hightShield = 5*cm;
219 startAngleShield = 0*deg;
220 spanningAngleShield = 360*deg;
221
222 G4Tubs *aRest = new G4Tubs("Rest",
223 innerRadiusShield,
224 outerRadiusShield,
225 hightShield,
226 startAngleShield,
227 spanningAngleShield);
228
229 G4LogicalVolume *aRest_log =
230 new G4LogicalVolume(aRest, Galactic, "aRest_log");
231 fLogicalVolumeVector.push_back(aRest_log);
232 name = "rest";
233
234 pos_x = 0*cm;
235 pos_y = 0*cm;
236 pos_z = 95*cm;
237 G4VPhysicalVolume *pvol_rest =
238 new G4PVPlacement(0,
239 G4ThreeVector(pos_x, pos_y, pos_z),
240 aRest_log,
241 name,
242 worldCylinder_log,
243 false,
244 19); // i=19
245
246 fPhysicalVolumeVector.push_back(pvol_rest);
247
248 SetSensitive();
249 return pWorldVolume;
250}
251
252
253G4VIStore *B01DetectorConstruction::CreateImportanceStore()
254{
255 if (!fPhysicalVolumeVector.size())
256 {
257 G4Exception("B01-DetectorConstruction: no physical volumes created yet!");
258 }
259
260 pWorldVolume = fPhysicalVolumeVector[0];
261
262 // creating and filling the importance store
263
264 G4IStore *istore = new G4IStore(*pWorldVolume);
265
266 G4int n = 0;
267 G4double imp =1;
268 istore->AddImportanceGeometryCell(1, *pWorldVolume);
269 for (std::vector<G4VPhysicalVolume *>::iterator
270 it = fPhysicalVolumeVector.begin();
271 it != fPhysicalVolumeVector.end() - 1; it++)
272 {
273 if (*it != pWorldVolume)
274 {
275 imp = std::pow(2., n++);
276 G4cout << "Going to assign importance: " << imp << ", to volume: "
277 << (*it)->GetName() << G4endl;
278 istore->AddImportanceGeometryCell(imp, *(*it),n);
279 }
280 }
281
282 // the remaining part pf the geometry (rest) gets the same
283 // importance as the last conrete cell
284 //
285 istore->AddImportanceGeometryCell(imp,
286 *(fPhysicalVolumeVector[fPhysicalVolumeVector.size()-1]),++n);
287
288 return istore;
289}
290
291G4VWeightWindowStore *B01DetectorConstruction::CreateWeightWindowStore()
292{
293 if (!fPhysicalVolumeVector.size())
294 {
295 G4Exception("B01-CreateWeightWindowStore: no physical volumes created yet!");
296 }
297
298 pWorldVolume = fPhysicalVolumeVector[0];
299
300 // creating and filling the weight window store
301
302 G4WeightWindowStore *wwstore = new G4WeightWindowStore(*pWorldVolume);
303
304 // create one energy region covering the energies of the problem
305 //
306 std::set<G4double, std::less<G4double> > enBounds;
307 enBounds.insert(1 * GeV);
308 wwstore->SetGeneralUpperEnergyBounds(enBounds);
309
310 G4int n = 0;
311 G4double lowerWeight =1;
312 std::vector<G4double> lowerWeights;
313
314 lowerWeights.push_back(1);
315 G4GeometryCell gWorldCell(*pWorldVolume,0);
316 wwstore->AddLowerWeights(gWorldCell, lowerWeights);
317
318 for (std::vector<G4VPhysicalVolume *>::iterator
319 it = fPhysicalVolumeVector.begin();
320 it != fPhysicalVolumeVector.end() - 1; it++)
321 {
322 if (*it != pWorldVolume)
323 {
324 lowerWeight = 1./std::pow(2., n++);
325 G4cout << "Going to assign lower weight: " << lowerWeight
326 << ", to volume: "
327 << (*it)->GetName() << G4endl;
328 G4GeometryCell gCell(*(*it),n);
329 lowerWeights.clear();
330 lowerWeights.push_back(lowerWeight);
331 wwstore->AddLowerWeights(gCell, lowerWeights);
332 }
333 }
334
335 // the remaining part pf the geometry (rest) gets the same
336 // lower weight bound as the last conrete cell
337 //
338 G4GeometryCell
339 gRestCell(*(fPhysicalVolumeVector[fPhysicalVolumeVector.size()-1]), ++n);
340 wwstore->AddLowerWeights(gRestCell, lowerWeights);
341
342 return wwstore;
343}
344
345G4String B01DetectorConstruction::GetCellName(G4int i)
346{
347 std::ostringstream os;
348 os << "cell_";
349 if (i<10)
350 {
351 os << "0";
352 }
353 os << i ;
354 G4String name = os.str();
355 return name;
356}
357
358G4VPhysicalVolume *B01DetectorConstruction::GetWorldVolume() {
359 return pWorldVolume;
360}
361
362void B01DetectorConstruction::SetSensitive(){
363
364 // -------------------------------------------------
365 // The collection names of defined Primitives are
366 // 0 ConcreteSD/Collisions
367 // 1 ConcreteSD/CollWeight
368 // 2 ConcreteSD/Population
369 // 3 ConcreteSD/TrackEnter
370 // 4 ConcreteSD/SL
371 // 5 ConcreteSD/SLW
372 // 6 ConcreteSD/SLWE
373 // 7 ConcreteSD/SLW_V
374 // 8 ConcreteSD/SLWE_V
375 // -------------------------------------------------
376
377
378 //================================================
379 // Sensitive detectors : MultiFunctionalDetector
380 //================================================
381 //
382 // Sensitive Detector Manager.
383 G4SDManager* SDman = G4SDManager::GetSDMpointer();
384 //
385 // Sensitive Detector Name
386 G4String concreteSDname = "ConcreteSD";
387
388 //------------------------
389 // MultiFunctionalDetector
390 //------------------------
391 //
392 // Define MultiFunctionalDetector with name.
393 G4MultiFunctionalDetector* MFDet = new G4MultiFunctionalDetector(concreteSDname);
394 SDman->AddNewDetector( MFDet ); // Register SD to SDManager
395
396
397 G4String fltName,particleName;
398 G4SDParticleFilter* neutronFilter =
399 new G4SDParticleFilter(fltName="neutronFilter", particleName="neutron");
400
401 MFDet->SetFilter(neutronFilter);
402
403
404 for (std::vector<G4LogicalVolume *>::iterator it = fLogicalVolumeVector.begin();
405 it != fLogicalVolumeVector.end(); it++){
406 (*it)->SetSensitiveDetector(MFDet);
407 }
408
409 G4String psName;
410 G4PSNofCollision* scorer0 = new G4PSNofCollision(psName="Collisions");
411 MFDet->RegisterPrimitive(scorer0);
412
413
414 G4PSNofCollision* scorer1 = new G4PSNofCollision(psName="CollWeight");
415 scorer1->Weighted(true);
416 MFDet->RegisterPrimitive(scorer1);
417
418
419 G4PSPopulation* scorer2 = new G4PSPopulation(psName="Population");
420 MFDet->RegisterPrimitive(scorer2);
421
422 G4PSTrackCounter* scorer3 = new G4PSTrackCounter(psName="TrackEnter",fCurrent_In);
423 MFDet->RegisterPrimitive(scorer3);
424
425 G4PSTrackLength* scorer4 = new G4PSTrackLength(psName="SL");
426 MFDet->RegisterPrimitive(scorer4);
427
428 G4PSTrackLength* scorer5 = new G4PSTrackLength(psName="SLW");
429 scorer5->Weighted(true);
430 MFDet->RegisterPrimitive(scorer5);
431
432 G4PSTrackLength* scorer6 = new G4PSTrackLength(psName="SLWE");
433 scorer6->Weighted(true);
434 scorer6->MultiplyKineticEnergy(true);
435 MFDet->RegisterPrimitive(scorer6);
436
437 G4PSTrackLength* scorer7 = new G4PSTrackLength(psName="SLW_V");
438 scorer7->Weighted(true);
439 scorer7->DivideByVelocity(true);
440 MFDet->RegisterPrimitive(scorer7);
441
442 G4PSTrackLength* scorer8 = new G4PSTrackLength(psName="SLWE_V");
443 scorer8->Weighted(true);
444 scorer8->MultiplyKineticEnergy(true);
445 scorer8->DivideByVelocity(true);
446 MFDet->RegisterPrimitive(scorer8);
447
448}
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