source: trunk/source/geometry/magneticfield/test/field02/src/F02DetectorConstruction.cc @ 1347

Last change on this file since 1347 was 1347, checked in by garnier, 13 years ago

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27// $Id: F02DetectorConstruction.cc,v 1.4 2006/06/29 18:27:49 gunter Exp $
28// GEANT4 tag $Name: geant4-09-04-ref-00 $
29//
30//
31
32#include "F02DetectorConstruction.hh"
33#include "F02DetectorMessenger.hh"
34
35#include "F02CalorimeterSD.hh"
36#include "F02ElectroMagneticField.hh"
37
38#include "G4VClusterModel.hh"
39#include "G4PAIclusterModel.hh"
40
41#include "G4Material.hh"
42#include "G4Tubs.hh"
43#include "G4LogicalVolume.hh"
44#include "G4PVPlacement.hh"
45#include "G4UniformMagField.hh"
46#include "G4FieldManager.hh"
47#include "G4TransportationManager.hh"
48#include "G4SDManager.hh"
49#include "G4RunManager.hh"
50
51#include "G4ios.hh"
52
53/////////////////////////////////////////////////////////////////////////////
54//
55//
56
57F02DetectorConstruction::F02DetectorConstruction()
58:solidWorld(NULL),logicWorld(NULL),physiWorld(NULL),
59 solidAbsorber(NULL),logicAbsorber(NULL),physiAbsorber(NULL),
60 AbsorberMaterial(NULL),WorldMaterial(NULL),fRadiatorMat(NULL),
61 magField(NULL),calorimeterSD(NULL),worldchanged(false),fEmField(NULL)
62{
63  // default parameter values of the calorimeter
64
65  G4double inch = 2.54*cm ;
66  G4double  mil = inch/1000.0 ;
67
68  WorldSizeZ = 200.*cm;
69  WorldSizeR = 1000.*cm;
70
71  AbsorberThickness = 0.01*cm;
72
73  AbsorberRadius   = WorldSizeR - 0.1*cm;
74  //  zAbsorber = 0.5*WorldSizeZ - 50.5*cm ; // - 0.5*AbsorberThickness ;
75  zAbsorber = 99*cm - 0.5*AbsorberThickness ;
76
77  fWindowThick = 51.0*micrometer ;
78  fElectrodeThick = 10.0*micrometer ;
79  fGapThick = 1.0*mm ;
80
81  fRadThickness = 25*micrometer ;   // 0.5*mil ;   
82  fGasGap       = 1500*micrometer  ;    // 30*mil ;   
83  fFoilNumber   = 188 ;
84
85  fDetThickness = 40.0*mm ;
86  fDetLength    = 200.0*cm  ;
87  fDetGap       = 1.0*mm ;
88
89  fStartR       = 40*cm  ;
90  fStartZ       = 10.0*mm  ;
91
92  fModuleNumber = 1      ; 
93
94  // create commands for interactive definition of the calorimeter 
95
96  detectorMessenger = new F02DetectorMessenger(this);
97 
98  //  fEmField = new F02ElectroMagneticField() ;
99}
100
101//////////////////////////////////////////////////////////////////////////
102//
103//
104
105F02DetectorConstruction::~F02DetectorConstruction()
106{ 
107  delete detectorMessenger;
108  if (fEmField) delete fEmField ;
109}
110
111//////////////////////////////////////////////////////////////////////////
112//
113//
114
115G4VPhysicalVolume* F02DetectorConstruction::Construct()
116{
117  DefineMaterials();
118  return ConstructCalorimeter();
119}
120
121//////////////////////////////////////////////////////////////////////////////
122//
123//
124
125void F02DetectorConstruction::DefineMaterials()
126{ 
127 //This function illustrates the possible ways to define materials
128 
129G4String name, symbol ;             //a=mass of a mole;
130G4double a, z, density ;            //z=mean number of protons; 
131G4int iz, n, nel ;                       //iz=number of protons  in an isotope;
132                                   // n=number of nucleons in an isotope;
133
134G4int ncomponents, natoms;
135G4double abundance, fractionmass;
136G4double temperature, pressure;
137
138//
139// define Elements
140//
141
142  a = 1.01*g/mole;
143  G4Element* elH  = new G4Element(name="Hydrogen",symbol="H" , z= 1., a);
144
145  a = 6.01*g/mole;
146  G4Element* elC = new G4Element(name="Carbon", symbol="C", z=6., a);
147
148  a = 14.01*g/mole;
149  G4Element* elN  = new G4Element(name="Nitrogen",symbol="N" , z= 7., a);
150
151  a = 16.00*g/mole;
152  G4Element* elO  = new G4Element(name="Oxygen"  ,symbol="O" , z= 8., a);
153
154  a = 39.948*g/mole;
155  G4Element* elAr = new G4Element(name="Argon", symbol="Ar", z=18., a);
156
157  a = 131.29*g/mole;
158  G4Element* elXe = new G4Element(name="Xenon", symbol="Xe", z=54., a);
159 
160  a = 19.00*g/mole;
161  G4Element* elF  = new G4Element(name="Fluorine", symbol="F", z=9., a);
162
163
164//
165// define simple materials
166//
167
168     /* ******************************************************************
169
170density = 1.848*g/cm3;
171a = 9.01*g/mole;
172G4Material* Be = new G4Material(name="Beryllium", z=4., a, density);
173
174
175density = 1.390*g/cm3;
176a = 39.95*g/mole;
177G4Material* lAr = new G4Material(name="liquidArgon", z=18., a, density);
178
179density = 7.870*g/cm3;
180a = 55.85*g/mole;
181G4Material* Fe = new G4Material(name="Iron"   , z=26., a, density);
182
183density = 8.960*g/cm3;
184a = 63.55*g/mole;
185G4Material* Cu = new G4Material(name="Copper"   , z=29., a, density);
186
187density = 19.32*g/cm3;
188a =196.97*g/mole;
189G4Material* Au = new G4Material(name="Gold"   , z=79., a, density);
190
191density = 11.35*g/cm3;
192a = 207.19*g/mole;
193G4Material* Pb = new G4Material(name="Lead"     , z=82., a, density);
194
195//
196// define a material from elements.   case 1: chemical molecule
197//
198
199density = 1.000*g/cm3;
200G4Material* H2O = new G4Material(name="Water", density, ncomponents=2);
201H2O->AddElement(elH, natoms=2);
202H2O->AddElement(elO, natoms=1);
203
204  // Kapton (polyimide) ??? since = Mylar C5H4O2
205
206  density = 1.39*g/cm3;
207  G4Material* Kapton = new G4Material(name="Kapton", density, nel=3);
208  Kapton->AddElement(elO,2);
209  Kapton->AddElement(elC,5);
210  Kapton->AddElement(elH,4);
211
212  // Silicon as detector material
213
214  density = 2.330*g/cm3;
215  a = 28.09*g/mole;
216  G4Material* Si = new G4Material(name="Silicon", z=14., a, density);
217
218  // Carbon dioxide
219
220  density = 1.977*mg/cm3;
221  G4Material* CO2 = new G4Material(name="CO2", density, nel=2,
222                                       kStateGas,273.15*kelvin,1.*atmosphere);
223  CO2->AddElement(elC,1);
224  CO2->AddElement(elO,2);
225
226
227  // TRT_CH2
228     
229  density = 0.935*g/cm3;
230  G4Material* TRT_CH2 = new G4Material(name="TRT_CH2",density, nel=2);
231  TRT_CH2->AddElement(elC,1);
232  TRT_CH2->AddElement(elH,2);
233
234  // Radiator
235
236  density = 0.059*g/cm3;
237  G4Material* Radiator = new G4Material(name="Radiator",density, nel=2);
238  Radiator->AddElement(elC,1);
239  Radiator->AddElement(elH,2);
240
241  // Carbon Fiber
242
243  density = 0.145*g/cm3;
244  G4Material* CarbonFiber = new G4Material(name="CarbonFiber",density, nel=1);
245  CarbonFiber->AddElement(elC,1);
246
247  density = 1.290*mg/cm3;  // old air from elements
248  G4Material* air = new G4Material(name="air"  , density, ncomponents=2);
249  Air->AddElement(elN, fractionmass=0.7);
250  Air->AddElement(elO, fractionmass=0.3);
251
252
253  density = 1.25053*mg/cm3 ;       // STP
254  a = 14.01*g/mole ;       // get atomic weight !!!
255  //  a = 28.016*g/mole;
256  G4Material* N2  = new G4Material(name="Nitrogen", z= 7.,a,density) ;
257
258  density = 1.25053*mg/cm3 ;       // STP
259  G4Material* anotherN2 = new G4Material(name="anotherN2", density,ncomponents=2);
260  anotherN2->AddElement(elN, 1);
261  anotherN2->AddElement(elN, 1);
262
263************************ */
264
265  // Al for electrodes
266
267  density = 2.700*g/cm3;
268  a = 26.98*g/mole;
269  G4Material* Al = new G4Material(name="Aluminium", z=13., a, density);
270
271  // Mylar
272
273  density = 1.39*g/cm3;
274  G4Material* Mylar = new G4Material(name="Mylar", density, nel=3);
275  Mylar->AddElement(elO,2);
276  Mylar->AddElement(elC,5);
277  Mylar->AddElement(elH,4);
278
279  // Polypropelene
280
281  G4Material* CH2 = new G4Material ("Polypropelene" , 0.91*g/cm3, 2);
282  CH2->AddElement(elH,2);
283  CH2->AddElement(elC,1);
284
285
286
287  // Krypton as detector gas, STP
288
289  density = 3.700*mg/cm3 ;
290  a = 83.80*g/mole ;
291  G4Material* Kr  = new G4Material(name="Kr",z=36., a, density );
292
293  // Metane, STP
294
295  //  density = 0.7174*mg/cm3 ;
296  //  G4Material* metane = new G4Material(name="CH4",density,nel=2) ;
297  //  metane->AddElement(elC,1) ;
298  //  metane->AddElement(elH,4) ;
299
300
301  // Dry air (average composition)
302
303  density = 1.7836*mg/cm3 ;       // STP
304  G4Material* Argon = new G4Material(name="Argon"  , density, ncomponents=1);
305  Argon->AddElement(elAr, 1);
306
307  density = 1.25053*mg/cm3 ;       // STP
308  G4Material* Nitrogen = new G4Material(name="N2"  , density, ncomponents=1);
309  Nitrogen->AddElement(elN, 2);
310
311  density = 1.4289*mg/cm3 ;       // STP
312  G4Material* Oxygen = new G4Material(name="O2"  , density, ncomponents=1);
313  Oxygen->AddElement(elO, 2);
314
315
316  density = 1.2928*mg/cm3 ;       // STP
317  density *= 10e-8 ;
318  G4Material* Air = new G4Material(name="Air"  , density, ncomponents=3);
319  Air->AddMaterial( Nitrogen, fractionmass = 0.7557 ) ;
320  Air->AddMaterial( Oxygen,   fractionmass = 0.2315 ) ;
321  Air->AddMaterial( Argon,    fractionmass = 0.0128 ) ;
322
323  // 93% Ar + 7% CH4, STP
324
325  //  density = 1.709*mg/cm3 ;     
326  //  G4Material* Ar7CH4 = new G4Material(name="Ar7CH4"  , density,
327  //                                                           ncomponents=2);
328  //  Ar7CH4->AddMaterial( Argon,    fractionmass = 0.971 ) ;
329  //  Ar7CH4->AddMaterial( metane,   fractionmass = 0.029 ) ;
330
331  // 93% Kr + 7% CH4, STP
332
333  //  density = 3.491*mg/cm3 ;     
334  //  G4Material* Kr7CH4 = new G4Material(name="Kr7CH4"  , density,
335  //                                                   ncomponents=2);
336  //  Kr7CH4->AddMaterial( Kr,       fractionmass = 0.986 ) ;
337  //  Kr7CH4->AddMaterial( metane,   fractionmass = 0.014 ) ;
338
339  /* **************
340
341  G4double TRT_Xe_density = 5.485*mg/cm3;
342  G4Material* TRT_Xe = new G4Material(name="TRT_Xe", TRT_Xe_density, nel=1,
343                                      kStateGas,293.15*kelvin,1.*atmosphere);
344  TRT_Xe->AddElement(elXe,1);
345
346  G4double TRT_CO2_density = 1.842*mg/cm3;
347  G4Material* TRT_CO2 = new G4Material(name="TRT_CO2", TRT_CO2_density, nel=2,
348                                       kStateGas,293.15*kelvin,1.*atmosphere);
349  TRT_CO2->AddElement(elC,1);
350  TRT_CO2->AddElement(elO,2);
351
352  G4double TRT_CF4_density = 3.9*mg/cm3;
353  G4Material* TRT_CF4 = new G4Material(name="TRT_CF4", TRT_CF4_density, nel=2,
354                                       kStateGas,293.15*kelvin,1.*atmosphere);
355  TRT_CF4->AddElement(elC,1);
356  TRT_CF4->AddElement(elF,4);
357
358  // ATLAS TRT straw tube gas mixture (20 C, 1 atm)
359
360  G4double XeCO2CF4_density = 4.76*mg/cm3;
361  G4Material* XeCO2CF4 = new G4Material(name="XeCO2CF4", XeCO2CF4_density,
362                                        ncomponents=3,
363                                        kStateGas,293.15*kelvin,1.*atmosphere);
364  XeCO2CF4->AddMaterial(TRT_Xe,0.807);
365  XeCO2CF4->AddMaterial(TRT_CO2,0.039);
366  XeCO2CF4->AddMaterial(TRT_CF4,0.154);
367
368  *********** */
369
370  // Xenon as detector gas, STP
371
372  density = 5.858*mg/cm3 ;
373  a = 131.29*g/mole ;
374  G4Material* Xe  = new G4Material(name="Xenon",z=54., a, density );
375
376  // Carbon dioxide, STP
377
378  density = 1.977*mg/cm3;
379  G4Material* CarbonDioxide = new G4Material(name="CO2", density, nel=2);
380  CarbonDioxide->AddElement(elC,1);
381  CarbonDioxide->AddElement(elO,2);
382
383  // 80% Ar + 20% CO2, STP
384
385//  density = 1.8223*mg/cm3 ;     
386//  G4Material* Ar_80CO2_20 = new G4Material(name="ArCO2"  , density,
387//                                    ncomponents=2);
388//  Ar_80CO2_20->AddMaterial( Argon,           fractionmass = 0.783 ) ;
389//  Ar_80CO2_20->AddMaterial( CarbonDioxide,   fractionmass = 0.217 ) ;
390
391  // 80% Xe + 20% CO2, STP
392
393  density = 5.0818*mg/cm3 ;     
394  G4Material* Xe20CO2 = new G4Material(name="Xe20CO2"  , density, ncomponents=2);
395  Xe20CO2->AddMaterial( Xe,              fractionmass = 0.922 ) ;
396  Xe20CO2->AddMaterial( CarbonDioxide,   fractionmass = 0.078 ) ;
397
398  // 80% Kr + 20% CO2, STP
399
400  density = 3.601*mg/cm3 ;     
401  G4Material* Kr20CO2 = new G4Material(name="Kr20CO2"  , density, 
402                                                             ncomponents=2);
403  Kr20CO2->AddMaterial( Kr,              fractionmass = 0.89 ) ;
404  Kr20CO2->AddMaterial( CarbonDioxide,   fractionmass = 0.11 ) ;
405
406
407  G4cout << *(G4Material::GetMaterialTable()) << G4endl;
408
409  //default materials of the calorimeter and TR radiator
410
411  fRadiatorMat =  Mylar ; // CH2 ;   // Mylar ;
412 
413  fWindowMat = Mylar ;
414  fElectrodeMat = Al ;
415
416  AbsorberMaterial = Air ;  // Kr20CO2 ;   // XeCO2CF4  ;
417  fGapMat          = Air ;  //  Kr20CO2 ;
418
419  WorldMaterial    = Air ;
420}
421
422/////////////////////////////////////////////////////////////////////////
423//
424//
425 
426G4VPhysicalVolume* F02DetectorConstruction::ConstructCalorimeter()
427{
428  G4int i, j ; 
429  G4double zModule, zRadiator, rModule, rRadiator ; 
430
431  // complete the Calor parameters definition and Print
432
433  ComputeCalorParameters();
434  PrintCalorParameters();
435     
436  // World
437 
438  if(solidWorld) delete solidWorld ;
439  if(logicWorld) delete logicWorld ;
440  if(physiWorld) delete physiWorld ;
441
442  solidWorld = new G4Tubs("World",                              //its name
443                   0.,WorldSizeR,WorldSizeZ/2.,0.,twopi)       ;//its size
444                         
445  logicWorld = new G4LogicalVolume(solidWorld,          //its solid
446                                   WorldMaterial,       //its material
447                                   "World");            //its name
448                                   
449  physiWorld = new G4PVPlacement(0,                     //no rotation
450                                 G4ThreeVector(),       //at (0,0,0)
451                                 "World",               //its name
452                                 logicWorld,            //its logical volume
453                                 NULL,                  //its mother  volume
454                                 false,                 //no boolean operation
455                                 0);                    //copy number
456
457  /**************************
458
459  G4Tubs* solidElectrode = new G4Tubs("Electrode",0.,AbsorberRadius,
460                                       fElectrodeThick/2.,0.,twopi);
461                         
462  G4LogicalVolume* logicElectrode = new G4LogicalVolume(solidElectrode,
463                                        fElectrodeMat, "Electrode");
464
465  G4double zElectrode = zAbsorber - AbsorberThickness/2. -
466                        fElectrodeThick/2. - 0.01*mm;   
467                                         
468  G4VPhysicalVolume*    physiElectrode = new G4PVPlacement(0,             
469                                       G4ThreeVector(0.,0.,zElectrode),       
470                                        "Electrode",logicElectrode,
471                                         physiWorld,false,0);   
472 
473
474
475  G4Tubs* solidGap = new G4Tubs("Gap",0.,AbsorberRadius,fGapThick/2.,0.,twopi);
476                         
477  G4LogicalVolume* logicGap = new G4LogicalVolume(solidGap,fGapMat, "Gap");
478
479  G4double zGap = zElectrode - fElectrodeThick/2. - fGapThick/2. - 0.01*mm ;   
480                                         
481  G4VPhysicalVolume*    physiGap = new G4PVPlacement(0,           
482                                       G4ThreeVector(0.,0.,zGap),       
483                                        "Gap",logicGap,physiWorld,false,0);
484
485  G4Tubs* solidWindow = new G4Tubs("Window",0.,AbsorberRadius,
486                                    fWindowThick/2.,0.,twopi);
487                         
488  G4LogicalVolume* logicWindow = new G4LogicalVolume(solidWindow,
489                                     fWindowMat, "Window");
490
491  G4double zWindow = zGap - fGapThick/2. - fWindowThick/2. - 0.01*mm ;   
492                                         
493  G4VPhysicalVolume*    physiWindow = new G4PVPlacement(0,                 
494                                       G4ThreeVector(0.,0.,zWindow),       
495                                        "Window",logicWindow,physiWorld,false,0);
496
497  ************ */
498                             
499  // Absorber
500
501  if (AbsorberThickness > 0.) 
502  { 
503      if(solidAbsorber) delete solidAbsorber ;
504      if(logicAbsorber) delete logicAbsorber ;
505      if(physiAbsorber) delete physiAbsorber ;
506
507      solidAbsorber = new G4Tubs("Absorber",           
508                          0.,AbsorberRadius,AbsorberThickness/2.,0.,twopi); 
509                         
510      logicAbsorber = new G4LogicalVolume(solidAbsorber,   
511                                          AbsorberMaterial, 
512                                          "Absorber");     
513                                         
514      physiAbsorber = new G4PVPlacement(0,                 
515                    G4ThreeVector(0.,0.,zAbsorber),       
516                                        "Absorber",       
517                                        logicAbsorber,     
518                                        physiWorld,       
519                                        false,             
520                                        0);               
521                                       
522  }
523                                 
524  // Sensitive Detectors: Absorber
525 
526  G4SDManager* SDman = G4SDManager::GetSDMpointer();
527
528  if(!calorimeterSD)
529  {
530    calorimeterSD = new F02CalorimeterSD("CalorSD",this);
531    SDman->AddNewDetector( calorimeterSD );
532  }
533  if (logicAbsorber)  logicAbsorber->SetSensitiveDetector(calorimeterSD);
534
535  return physiWorld;
536}
537
538////////////////////////////////////////////////////////////////////////////
539//
540//
541
542void F02DetectorConstruction::PrintCalorParameters()
543{
544  G4cout << "\n The  WORLD   is made of " 
545       << WorldSizeZ/mm << "mm of " << WorldMaterial->GetName() ;
546  G4cout << ", the transverse size (R) of the world is " << WorldSizeR/mm << " mm. " << G4endl;
547  G4cout << " The ABSORBER is made of " 
548       << AbsorberThickness/mm << "mm of " << AbsorberMaterial->GetName() ;
549  G4cout << ", the transverse size (R) is " << AbsorberRadius/mm << " mm. " << G4endl;
550  G4cout << " Z position of the (middle of the) absorber " << zAbsorber/mm << "  mm." << G4endl;
551  G4cout << G4endl;
552}
553
554///////////////////////////////////////////////////////////////////////////
555//
556//
557
558void F02DetectorConstruction::SetAbsorberMaterial(G4String materialChoice)
559{
560  // search the material by its name
561  G4Material* pttoMaterial = G4Material::GetMaterial(materialChoice);     
562  if (pttoMaterial)
563  {
564    AbsorberMaterial = pttoMaterial;
565    logicAbsorber->SetMaterial(pttoMaterial); 
566    PrintCalorParameters();
567  }   
568}
569
570////////////////////////////////////////////////////////////////////////////
571//
572//
573
574void F02DetectorConstruction::SetWorldMaterial(G4String materialChoice)
575{
576 // search the material by its name
577  G4Material* pttoMaterial = G4Material::GetMaterial(materialChoice);     
578  if (pttoMaterial)
579  {
580    WorldMaterial = pttoMaterial;
581    logicWorld->SetMaterial(pttoMaterial); 
582    PrintCalorParameters();     
583  }
584}
585
586///////////////////////////////////////////////////////////////////////////
587//
588//
589
590void F02DetectorConstruction::SetAbsorberThickness(G4double val)
591{
592  // change Absorber thickness and recompute the calorimeter parameters
593  AbsorberThickness = val;
594  ComputeCalorParameters();
595} 
596
597/////////////////////////////////////////////////////////////////////////////
598//
599//
600
601void F02DetectorConstruction::SetAbsorberRadius(G4double val)
602{
603  // change the transverse size and recompute the calorimeter parameters
604  AbsorberRadius = val;
605  ComputeCalorParameters();
606} 
607
608////////////////////////////////////////////////////////////////////////////
609//
610//
611
612void F02DetectorConstruction::SetWorldSizeZ(G4double val)
613{
614  worldchanged=true;
615  WorldSizeZ = val;
616  ComputeCalorParameters();
617} 
618
619///////////////////////////////////////////////////////////////////////////
620//
621//
622
623void F02DetectorConstruction::SetWorldSizeR(G4double val)
624{
625  worldchanged=true;
626  WorldSizeR = val;
627  ComputeCalorParameters();
628} 
629
630//////////////////////////////////////////////////////////////////////////////
631//
632//
633
634void F02DetectorConstruction::SetAbsorberZpos(G4double val)
635{
636  zAbsorber  = val;
637  ComputeCalorParameters();
638} 
639
640//////////////////////////////////////////////////////////////////////////////
641//
642//
643
644void F02DetectorConstruction::SetMagField(G4double fieldValue)
645{
646  //apply a global uniform magnetic field along X axis
647
648  /* *********************************************************
649
650  G4FieldManager* fieldMgr
651   = G4TransportationManager::GetTransportationManager()->GetFieldManager();
652   
653  if(magField) delete magField;         //delete the existing magn field
654 
655  if(fieldValue!=0.)                    // create a new one if non nul
656  {
657    magField = new G4UniformMagField(G4ThreeVector(fieldValue,0.,0.));       
658    fieldMgr->SetDetectorField(magField);
659    fieldMgr->CreateChordFinder(magField);
660  }
661  else
662  {
663    magField = NULL;
664    fieldMgr->SetDetectorField(magField);
665  }
666
667  *************************************************************** */
668
669}
670
671///////////////////////////////////////////////////////////////////////////////
672//
673//
674 
675void F02DetectorConstruction::UpdateGeometry()
676{
677  G4RunManager::GetRunManager()->DefineWorldVolume(ConstructCalorimeter());
678}
679
680//
681//
682////////////////////////////////////////////////////////////////////////////
683
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