Geant4 Cross Reference

Cross-Referencing   Geant4
Geant4/examples/extended/field/field02/src/F02DetectorConstruction.cc

Version: [ ReleaseNotes ] [ 1.0 ] [ 1.1 ] [ 2.0 ] [ 3.0 ] [ 3.1 ] [ 3.2 ] [ 4.0 ] [ 4.0.p1 ] [ 4.0.p2 ] [ 4.1 ] [ 4.1.p1 ] [ 5.0 ] [ 5.0.p1 ] [ 5.1 ] [ 5.1.p1 ] [ 5.2 ] [ 5.2.p1 ] [ 5.2.p2 ] [ 6.0 ] [ 6.0.p1 ] [ 6.1 ] [ 6.2 ] [ 6.2.p1 ] [ 6.2.p2 ] [ 7.0 ] [ 7.0.p1 ] [ 7.1 ] [ 7.1.p1 ] [ 8.0 ] [ 8.0.p1 ] [ 8.1 ] [ 8.1.p1 ] [ 8.1.p2 ] [ 8.2 ] [ 8.2.p1 ] [ 8.3 ] [ 8.3.p1 ] [ 8.3.p2 ] [ 9.0 ] [ 9.0.p1 ] [ 9.0.p2 ] [ 9.1 ] [ 9.1.p1 ] [ 9.1.p2 ] [ 9.1.p3 ] [ 9.2 ] [ 9.2.p1 ] [ 9.2.p2 ] [ 9.2.p3 ] [ 9.2.p4 ] [ 9.3 ] [ 9.3.p1 ] [ 9.3.p2 ] [ 9.4 ] [ 9.4.p1 ] [ 9.4.p2 ] [ 9.4.p3 ] [ 9.4.p4 ] [ 9.5 ] [ 9.5.p1 ] [ 9.5.p2 ] [ 9.6 ] [ 9.6.p1 ] [ 9.6.p2 ] [ 9.6.p3 ] [ 9.6.p4 ] [ 10.0 ] [ 10.0.p1 ] [ 10.0.p2 ] [ 10.0.p3 ] [ 10.0.p4 ] [ 10.1 ] [ 10.1.p1 ] [ 10.1.p2 ] [ 10.1.p3 ] [ 10.2 ] [ 10.2.p1 ] [ 10.2.p2 ] [ 10.2.p3 ] [ 10.3 ] [ 10.3.p1 ] [ 10.3.p2 ] [ 10.3.p3 ] [ 10.4 ] [ 10.4.p1 ] [ 10.4.p2 ] [ 10.4.p3 ] [ 10.5 ] [ 10.5.p1 ] [ 10.6 ] [ 10.6.p1 ] [ 10.6.p2 ] [ 10.6.p3 ] [ 10.7 ] [ 10.7.p1 ] [ 10.7.p2 ] [ 10.7.p3 ] [ 10.7.p4 ] [ 11.0 ] [ 11.0.p1 ] [ 11.0.p2 ] [ 11.0.p3, ] [ 11.0.p4 ] [ 11.1 ] [ 11.1.1 ] [ 11.1.2 ] [ 11.1.3 ] [ 11.2 ] [ 11.2.1 ] [ 11.2.2 ] [ 11.3.0 ]

  1 //
  2 // ********************************************************************
  3 // * License and Disclaimer                                           *
  4 // *                                                                  *
  5 // * The  Geant4 software  is  copyright of the Copyright Holders  of *
  6 // * the Geant4 Collaboration.  It is provided  under  the terms  and *
  7 // * conditions of the Geant4 Software License,  included in the file *
  8 // * LICENSE and available at  http://cern.ch/geant4/license .  These *
  9 // * include a list of copyright holders.                             *
 10 // *                                                                  *
 11 // * Neither the authors of this software system, nor their employing *
 12 // * institutes,nor the agencies providing financial support for this *
 13 // * work  make  any representation or  warranty, express or implied, *
 14 // * regarding  this  software system or assume any liability for its *
 15 // * use.  Please see the license in the file  LICENSE  and URL above *
 16 // * for the full disclaimer and the limitation of liability.         *
 17 // *                                                                  *
 18 // * This  code  implementation is the result of  the  scientific and *
 19 // * technical work of the GEANT4 collaboration.                      *
 20 // * By using,  copying,  modifying or  distributing the software (or *
 21 // * any work based  on the software)  you  agree  to acknowledge its *
 22 // * use  in  resulting  scientific  publications,  and indicate your *
 23 // * acceptance of all terms of the Geant4 Software license.          *
 24 // ********************************************************************
 25 //
 26 /// \file field/field02/src/F02DetectorConstruction.cc
 27 /// \brief Implementation of the F02DetectorConstruction class
 28 //
 29 //
 30 //
 31 //
 32 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 33 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 34 
 35 #include "F02DetectorConstruction.hh"
 36 
 37 #include "F02CalorimeterSD.hh"
 38 #include "F02DetectorMessenger.hh"
 39 
 40 #include "G4AutoDelete.hh"
 41 #include "G4GeometryManager.hh"
 42 #include "G4FieldBuilder.hh"
 43 #include "G4LogicalVolume.hh"
 44 #include "G4LogicalVolumeStore.hh"
 45 #include "G4Material.hh"
 46 #include "G4PVPlacement.hh"
 47 #include "G4PhysicalConstants.hh"
 48 #include "G4PhysicalVolumeStore.hh"
 49 #include "G4RunManager.hh"
 50 #include "G4SDManager.hh"
 51 #include "G4SolidStore.hh"
 52 #include "G4SystemOfUnits.hh"
 53 #include "G4Tubs.hh"
 54 #include "G4UniformElectricField.hh"
 55 
 56 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 57 
 58 F02DetectorConstruction::F02DetectorConstruction()
 59 {
 60   // create commands for interactive definition of the calorimeter
 61 
 62   fDetectorMessenger = new F02DetectorMessenger(this);
 63 
 64   // create field builder
 65   // this will create commands for field configuration
 66   G4FieldBuilder::Instance();
 67   // G4FieldBuilder::Instance()->SetVerboseLevel(2);
 68  
 69   // create materials
 70   DefineMaterials();
 71 }
 72 
 73 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 74 
 75 F02DetectorConstruction::~F02DetectorConstruction()
 76 {
 77   delete fDetectorMessenger;
 78 }
 79 
 80 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 81 
 82 G4VPhysicalVolume* F02DetectorConstruction::Construct()
 83 {
 84   return ConstructCalorimeter();
 85 }
 86 
 87 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
 88 
 89 void F02DetectorConstruction::DefineMaterials()
 90 {
 91   // This function illustrates the possible ways to define materials
 92 
 93   G4String name, symbol;  // a=mass of a mole;
 94   G4double a, z, density;  // z=mean number of protons;
 95   G4int nel;
 96   G4int ncomponents;
 97   G4double fractionmass, pressure, temperature;
 98 
 99   //
100   // define Elements
101   //
102 
103   a = 1.01 * g / mole;
104   auto elH = new G4Element(name = "Hydrogen", symbol = "H", z = 1., a);
105 
106   a = 12.01 * g / mole;
107   auto elC = new G4Element(name = "Carbon", symbol = "C", z = 6., a);
108 
109   a = 14.01 * g / mole;
110   auto elN = new G4Element(name = "Nitrogen", symbol = "N", z = 7., a);
111 
112   a = 16.00 * g / mole;
113   auto elO = new G4Element(name = "Oxygen", symbol = "O", z = 8., a);
114 
115   a = 39.948 * g / mole;
116   auto elAr = new G4Element(name = "Argon", symbol = "Ar", z = 18., a);
117 
118   //
119   // define simple materials
120   //
121 
122   // Mylar
123 
124   density = 1.39 * g / cm3;
125   auto mylar = new G4Material(name = "Mylar", density, nel = 3);
126   mylar->AddElement(elO, 2);
127   mylar->AddElement(elC, 5);
128   mylar->AddElement(elH, 4);
129 
130   // Polypropelene
131 
132   auto CH2 = new G4Material("Polypropelene", 0.91 * g / cm3, 2);
133   CH2->AddElement(elH, 2);
134   CH2->AddElement(elC, 1);
135 
136   // Krypton as detector gas, STP
137 
138   density = 3.700 * mg / cm3;
139   a = 83.80 * g / mole;
140   auto Kr = new G4Material(name = "Kr", z = 36., a, density);
141 
142   // Dry air (average composition)
143 
144   density = 1.7836 * mg / cm3;  // STP
145   auto argon = new G4Material(name = "Argon", density, ncomponents = 1);
146   argon->AddElement(elAr, 1);
147 
148   density = 1.25053 * mg / cm3;  // STP
149   auto nitrogen = new G4Material(name = "N2", density, ncomponents = 1);
150   nitrogen->AddElement(elN, 2);
151 
152   density = 1.4289 * mg / cm3;  // STP
153   auto oxygen = new G4Material(name = "O2", density, ncomponents = 1);
154   oxygen->AddElement(elO, 2);
155 
156   density = 1.2928 * mg / cm3;  // STP
157 
158   temperature = STP_Temperature;
159   pressure = 1.0e-0 * STP_Pressure;
160 
161   auto air =
162     new G4Material(name = "Air", density, ncomponents = 3, kStateGas, temperature, pressure);
163   air->AddMaterial(nitrogen, fractionmass = 0.7557);
164   air->AddMaterial(oxygen, fractionmass = 0.2315);
165   air->AddMaterial(argon, fractionmass = 0.0128);
166 
167   // Xenon as detector gas, STP
168 
169   density = 5.858 * mg / cm3;
170   a = 131.29 * g / mole;
171   auto Xe = new G4Material(name = "Xenon", z = 54., a, density);
172 
173   // Carbon dioxide, STP
174 
175   density = 1.842 * mg / cm3;
176   auto CarbonDioxide = new G4Material(name = "CO2", density, nel = 2);
177   CarbonDioxide->AddElement(elC, 1);
178   CarbonDioxide->AddElement(elO, 2);
179 
180   // 80% Xe + 20% CO2, STP
181 
182   density = 5.0818 * mg / cm3;
183   auto Xe20CO2 = new G4Material(name = "Xe20CO2", density, ncomponents = 2);
184   Xe20CO2->AddMaterial(Xe, fractionmass = 0.922);
185   Xe20CO2->AddMaterial(CarbonDioxide, fractionmass = 0.078);
186 
187   // 80% Kr + 20% CO2, STP
188 
189   density = 3.601 * mg / cm3;
190   auto Kr20CO2 = new G4Material(name = "Kr20CO2", density, ncomponents = 2);
191   Kr20CO2->AddMaterial(Kr, fractionmass = 0.89);
192   Kr20CO2->AddMaterial(CarbonDioxide, fractionmass = 0.11);
193 
194   G4cout << *(G4Material::GetMaterialTable()) << G4endl;
195 
196   // default materials of the calorimeter
197 
198   fAbsorberMaterial = Kr20CO2;  // XeCO2CF4;
199 
200   fWorldMaterial = air;
201 }
202 
203 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
204 
205 G4VPhysicalVolume* F02DetectorConstruction::ConstructCalorimeter()
206 {
207   // Cleanup old geometry
208 
209   if (fPhysiWorld) {
210     G4GeometryManager::GetInstance()->OpenGeometry();
211     G4PhysicalVolumeStore::GetInstance()->Clean();
212     G4LogicalVolumeStore::GetInstance()->Clean();
213     G4SolidStore::GetInstance()->Clean();
214   }
215 
216   // complete the Calor parameters definition and Print
217 
218   ComputeCalorParameters();
219   PrintCalorParameters();
220 
221   // World
222 
223   fSolidWorld = new G4Tubs("World",  // its name
224                            0., fWorldSizeR, fWorldSizeZ / 2., 0., twopi);  // its size
225 
226   fLogicWorld = new G4LogicalVolume(fSolidWorld,  // its solid
227                                     fWorldMaterial,  // its material
228                                     "World");  // its name
229 
230   fPhysiWorld = new G4PVPlacement(nullptr,  // no rotation
231                                   G4ThreeVector(),  // at (0,0,0)
232                                   "World",  // its name
233                                   fLogicWorld,  // its logical volume
234                                   nullptr,  // its mother  volume
235                                   false,  // no boolean op.
236                                   0);  // copy number
237   // Absorber
238 
239   fSolidAbsorber = new G4Tubs("Absorber", 0., fAbsorberRadius, fAbsorberThickness / 2., 0.0, twopi);
240 
241   fLogicAbsorber = new G4LogicalVolume(fSolidAbsorber, fAbsorberMaterial, "Absorber");
242 
243   fPhysiAbsorber = new G4PVPlacement(nullptr, G4ThreeVector(0., 0., fZAbsorber), "Absorber",
244                                      fLogicAbsorber, fPhysiWorld, false, 0);
245 
246   return fPhysiWorld;
247 }
248 
249 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
250 
251 void F02DetectorConstruction::PrintCalorParameters()
252 {
253   G4cout << "\n The  WORLD   is made of " << fWorldSizeZ / mm << "mm of "
254          << fWorldMaterial->GetName();
255   G4cout << ", the transverse size (R) of the world is " << fWorldSizeR / mm << " mm. " << G4endl;
256   G4cout << " The ABSORBER is made of " << fAbsorberThickness / mm << "mm of "
257          << fAbsorberMaterial->GetName();
258   G4cout << ", the transverse size (R) is " << fAbsorberRadius / mm << " mm. " << G4endl;
259   G4cout << " Z position of the (middle of the) absorber " << fZAbsorber / mm << "  mm." << G4endl;
260   G4cout << G4endl;
261 }
262 
263 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
264 
265 void F02DetectorConstruction::SetAbsorberMaterial(G4String materialChoice)
266 {
267   // get the pointer to the material table
268   const G4MaterialTable* theMaterialTable = G4Material::GetMaterialTable();
269 
270   // search the material by its name
271   G4Material* material;
272   for (size_t j = 0; j < theMaterialTable->size(); j++) {
273     material = (*theMaterialTable)[j];
274     if (material->GetName() == materialChoice) {
275       fAbsorberMaterial = material;
276       fLogicAbsorber->SetMaterial(material);
277       G4RunManager::GetRunManager()->PhysicsHasBeenModified();
278     }
279   }
280 }
281 
282 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
283 
284 void F02DetectorConstruction::SetWorldMaterial(G4String materialChoice)
285 {
286   // get the pointer to the material table
287   const G4MaterialTable* theMaterialTable = G4Material::GetMaterialTable();
288 
289   // search the material by its name
290   G4Material* material;
291   for (size_t j = 0; j < theMaterialTable->size(); j++) {
292     material = (*theMaterialTable)[j];
293     if (material->GetName() == materialChoice) {
294       fWorldMaterial = material;
295       fLogicWorld->SetMaterial(material);
296       G4RunManager::GetRunManager()->PhysicsHasBeenModified();
297     }
298   }
299 }
300 
301 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
302 
303 void F02DetectorConstruction::SetAbsorberThickness(G4double val)
304 {
305   // change Absorber thickness and recompute the calorimeter parameters
306   fAbsorberThickness = val;
307   ComputeCalorParameters();
308   G4RunManager::GetRunManager()->GeometryHasBeenModified();
309 }
310 
311 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
312 
313 void F02DetectorConstruction::SetAbsorberRadius(G4double val)
314 {
315   // change the transverse size and recompute the calorimeter parameters
316   fAbsorberRadius = val;
317   ComputeCalorParameters();
318   G4RunManager::GetRunManager()->GeometryHasBeenModified();
319 }
320 
321 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
322 
323 void F02DetectorConstruction::SetWorldSizeZ(G4double val)
324 {
325   fWorldChanged = true;
326   fWorldSizeZ = val;
327   ComputeCalorParameters();
328   G4RunManager::GetRunManager()->GeometryHasBeenModified();
329 }
330 
331 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
332 
333 void F02DetectorConstruction::SetWorldSizeR(G4double val)
334 {
335   fWorldChanged = true;
336   fWorldSizeR = val;
337   ComputeCalorParameters();
338   G4RunManager::GetRunManager()->GeometryHasBeenModified();
339 }
340 
341 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
342 
343 void F02DetectorConstruction::SetAbsorberZpos(G4double val)
344 {
345   fZAbsorber = val;
346   ComputeCalorParameters();
347   G4RunManager::GetRunManager()->GeometryHasBeenModified();
348 }
349 
350 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
351 
352 void F02DetectorConstruction::SetFieldValue(G4ThreeVector value)
353 {  
354   fFieldVector = value;
355 
356   G4UniformElectricField* elField = nullptr;
357   if (fFieldVector != G4ThreeVector(0.,0.,0.)) {
358     elField = new G4UniformElectricField(fFieldVector);
359   }
360 
361   // Set field to the field builder
362   auto fieldBuilder = G4FieldBuilder::Instance();
363   fieldBuilder->SetGlobalField(elField);
364 }
365 
366 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
367 
368 void F02DetectorConstruction::ConstructSDandField()
369 {
370   // Sensitive Detectors: Absorber
371 
372   if (!fCalorimeterSD.Get()) {
373     auto calorimeterSD = new F02CalorimeterSD("CalorSD", this);
374     fCalorimeterSD.Put(calorimeterSD);
375   }
376   G4SDManager::GetSDMpointer()->AddNewDetector(fCalorimeterSD.Get());
377   SetSensitiveDetector(fLogicAbsorber, fCalorimeterSD.Get());
378 
379   // Create detector field
380   SetFieldValue(fFieldVector);
381 
382   // Construct all Geant4 field objects
383   auto fieldBuilder = G4FieldBuilder::Instance();
384   fieldBuilder->SetFieldType(kElectroMagnetic);
385   fieldBuilder->ConstructFieldSetup();
386 }
387 
388 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
389