MUON/AliMUONSlatGeometryBuilder.cxx

   1 /**************************************************************************
   2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   3  *                                                                        *
   4  * Author: The ALICE Off-line Project.                                    *
   5  * Contributors are mentioned in the code where appropriate.              *
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  11  * appear in the supporting documentation. The authors make no claims     *
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  13  * provided "as is" without express or implied warranty.                  *
  14  **************************************************************************/
  15
  16 // $Id$
  17 //
  18 // Class AliMUONSlatGeometryBuilder
  19 // -------------------------------
  20 // Abstract base class for geometry construction per chamber.
  21 //
  22
  23
  24
  25 // This Builder is designed according to the enveloppe methode. The basic idea is to be able to allow moves
  26 // of the slats on the support panels.
  27 // Those moves can be described with a simple set of parameters. The next step should be now to describe all
  28 // the slats and their places by a unique
  29 // class, which would make the SlatBuilder far more compact since now only three parameters can define a slat
  30 // and its position, like:
  31 //   * Bool_t rounded_shape_slat
  32 //   * Float_t slat_length
  33 //   * Float_t slat_number or Float_t slat_position
  34
  35 #include <TVirtualMC.h>
  36 #include <TGeoMatrix.h>
  37 #include <Riostream.h>
  38
  39 #include "AliRun.h"
  40 #include "AliLog.h"
  41
  42 #include "AliMUONSlatGeometryBuilder.h"
  43 #include "AliMUON.h"
  44 #include "AliMUONConstants.h"
  45 #include "AliMUONGeometryModule.h"
  46 #include "AliMUONGeometryEnvelopeStore.h"
  47 #include "AliMUONConstants.h"
  48
  49 ClassImp(AliMUONSlatGeometryBuilder)
  50
  51
  52 //______________________________________________________________________________
  53 AliMUONSlatGeometryBuilder::AliMUONSlatGeometryBuilder(AliMUON* muon)
  54  : AliMUONVGeometryBuilder(4, 5, 6, 7, 8, 9),
  55    fMUON(muon)
  56 {
  57 // Standard constructor
  58
  59 }
  60
  61 //______________________________________________________________________________
  62 AliMUONSlatGeometryBuilder::AliMUONSlatGeometryBuilder()
  63  : AliMUONVGeometryBuilder(),
  64    fMUON(0)
  65 {
  66 // Default constructor
  67 }
  68
  69
  70 //______________________________________________________________________________
  71 AliMUONSlatGeometryBuilder::AliMUONSlatGeometryBuilder(const AliMUONSlatGeometryBuilder& rhs)
  72   : AliMUONVGeometryBuilder(rhs)
  73 {
  74   AliFatal("Copy constructor is not implemented.");
  75 }
  76
  77 //______________________________________________________________________________
  78 AliMUONSlatGeometryBuilder::~AliMUONSlatGeometryBuilder() {
  79 //
  80 }
  81
  82 //______________________________________________________________________________
  83 AliMUONSlatGeometryBuilder&
  84 AliMUONSlatGeometryBuilder::operator = (const AliMUONSlatGeometryBuilder& rhs)
  85 {
  86   // check assignement to self
  87   if (this == &rhs) return *this;
  88
  89   AliFatal("Assignment operator is not implemented.");
  90
  91   return *this;
  92 }
  93
  94 //
  95 // public methods
  96 //
  97
  98 //______________________________________________________________________________
  99 void AliMUONSlatGeometryBuilder::CreateGeometry()
 100 {
 101   // CreateGeometry is the method containing all the informations concerning Stations 345 geometry.
 102   // It includes description and placements of support panels and slats.
 103   // The code comes directly from what was written in AliMUONv1.cxx before, with modifications concerning
 104   // the use of Enveloppe method to place the Geant volumes.
 105   // Now, few changes would allow the creation of a Slat methode where slat could be described by few parameters,
 106   // and this builder would then be dedicated only to the
 107   // placements of the slats. Those modifications could shorten the Station 345 geometry by a non-negligeable factor...
 108
 109   Int_t *idtmed = fMUON->GetIdtmed()->GetArray()-1099;
 110
 111   Float_t angle;
 112   Float_t *dum=0;
 113
 114   // define the id of tracking media:
 115   Int_t idAir    = idtmed[1100]; // medium 1
 116   Int_t idGas    = idtmed[1108]; // medium 9 = Ar-CO2 gas (80%+20%)
 117   Int_t idCopper = idtmed[1110];
 118   Int_t idG10    = idtmed[1111];
 119   Int_t idCarbon = idtmed[1112];
 120   Int_t idRoha   = idtmed[1113];
 121   Int_t idNomex  = idtmed[1114]; // honey comb
 122   Int_t idNoryl  = idtmed[1115];
 123   Int_t idNomexB = idtmed[1116]; // bulk material
 124
 125   // sensitive area: 40*40 cm**2
 126   const Float_t kSensLength = 40.;
 127   const Float_t kSensHeight = 40.;
 128   const Float_t kSensWidth  = AliMUONConstants::Pitch()*2;// 0.5 cm, according to TDR fig 2.120
 129   const Int_t kSensMaterial = idGas;
 130   //     const Float_t kYoverlap   = 1.5;
 131
 132   // PCB dimensions in cm; width: 30 mum copper
 133   const Float_t kPcbLength  = kSensLength;
 134   const Float_t kPcbHeight  = 58.; // updated Ch. Finck
 135   const Float_t kPcbWidth   = 0.003;
 136   const Int_t kPcbMaterial  = idCopper;
 137
 138   // Insulating material: 220 mum G10 fiber  glued to pcb
 139   const Float_t kInsuLength = kPcbLength;
 140   const Float_t kInsuHeight = kPcbHeight;
 141   const Float_t kInsuWidth  = 0.022;  // updated Ch. Finck
 142   const Int_t kInsuMaterial = idG10;
 143
 144   // Carbon fiber panels: 200mum carbon/epoxy skin
 145   const Float_t kCarbonWidth  = 0.020;
 146   const Int_t kCarbonMaterial = idCarbon;
 147
 148   // Nomex (honey comb) between the two panel carbon skins
 149   const Float_t kNomexLength = kSensLength;
 150   const Float_t kNomexHeight = kSensHeight;
 151   const Float_t kNomexWidth  = 0.8; // updated Ch. Finck
 152   const Int_t kNomexMaterial = idNomex;
 153
 154   // Bulk Nomex under panel sandwich Ch. Finck
 155   const Float_t kNomexBWidth  = 0.025;
 156   const Int_t kNomexBMaterial = idNomexB;
 157
 158   // Panel sandwich 0.02 carbon*2 + 0.8 nomex
 159   const Float_t kPanelLength = kSensLength;
 160   const Float_t kPanelHeight = kSensHeight;
 161   const Float_t kPanelWidth  = 2 * kCarbonWidth + kNomexWidth;
 162
 163   // Frame along the rounded (spacers) slats
 164   const Float_t kRframeHeight = 2.00;
 165
 166   // spacer around the slat: 2 sticks along length,2 along height
 167   // H: the horizontal ones
 168   const Float_t kHframeLength = kPcbLength;
 169   const Float_t kHframeHeight = 1.95; // updated Ch. Finck
 170   const Float_t kHframeWidth  = kSensWidth;
 171   const Int_t kHframeMaterial = idNoryl;
 172
 173   // V: the vertical ones; vertical spacers
 174   const Float_t kVframeLength = 2.5;
 175   const Float_t kVframeHeight = kSensHeight + kHframeHeight;
 176   const Float_t kVframeWidth  = kSensWidth;
 177   const Int_t kVframeMaterial = idNoryl;
 178
 179   // B: the horizontal border filled with rohacell: ok Ch. Finck
 180   const Float_t kBframeLength = kHframeLength;
 181   const Float_t kBframeHeight = (kPcbHeight - kSensHeight)/2. - kHframeHeight;
 182   const Float_t kBframeWidth  = kHframeWidth;
 183   const Int_t kBframeMaterial = idRoha;
 184
 185   // NULOC: 30 mum copper + 200 mum vetronite (same radiation length as 14mum copper) for electronics
 186   const Float_t kNulocLength   = 2.5;
 187   const Float_t kNulocHeight   = kBframeHeight;
 188   const Float_t kNulocWidth    = 0.0030 + 0.0014; // equivalent copper width of vetronite;
 189   const Int_t   kNulocMaterial = idCopper;
 190
 191   // Slat parameters
 192   const Float_t kSlatHeight = kPcbHeight;
 193   const Float_t kSlatWidth  = kSensWidth + 2.*(kPcbWidth + kInsuWidth + kPanelWidth
 194                                                + kNomexBWidth); //replaced rohacell with Nomex Ch. Finck
 195   const Int_t   kSlatMaterial = idAir;
 196   const Float_t kDslatLength  = -1.25; // position of the slat respect to the beam plane (half vertical spacer) Ch. Finck
 197   Float_t zSlat               = AliMUONConstants::DzSlat();// implemented Ch. Finck
 198   Float_t dzCh                = AliMUONConstants::DzCh();
 199
 200   Float_t spar[3];
 201   Int_t i, j;
 202   Int_t detElemId;
 203
 204   // the panel volume contains the nomex
 205   Float_t panelpar[3] = { kPanelLength/2., kPanelHeight/2., kPanelWidth/2. };
 206   Float_t nomexpar[3] = { kNomexLength/2., kNomexHeight/2., kNomexWidth/2. };
 207   Float_t twidth =  kPanelWidth +  kNomexBWidth;
 208   Float_t nomexbpar[3] = {kNomexLength/2., kNomexHeight/2.,twidth/2. };// bulk nomex
 209
 210   // insulating material contains PCB-> gas
 211   twidth = 2*(kInsuWidth + kPcbWidth) + kSensWidth ;
 212   Float_t insupar[3] = {kInsuLength/2., kInsuHeight/2., twidth/2. };
 213   twidth -= 2 * kInsuWidth;
 214   Float_t pcbpar[3]  = {kPcbLength/2., kPcbHeight/2., twidth/2. };
 215   Float_t senspar[3] = {kSensLength/2., kSensHeight/2., kSensWidth/2. };
 216   Float_t theight    = 2 * kHframeHeight + kSensHeight;
 217   Float_t hFramepar[3] = {kHframeLength/2., theight/2., kHframeWidth/2.};
 218   Float_t bFramepar[3] = {kBframeLength/2., kBframeHeight/2., kBframeWidth/2.};
 219   Float_t vFramepar[3] = {kVframeLength/2., kVframeHeight/2., kVframeWidth/2.};
 220   Float_t nulocpar[3]  = {kNulocLength/2.,  kNulocHeight/2.,  kNulocWidth/2.};
 221
 222   Float_t xx;
 223   Float_t xxmax = (kBframeLength - kNulocLength)/2.;
 224   Int_t index=0;
 225
 226   AliMUONChamber *iChamber, *iChamber1, *iChamber2;
 227
 228   Int_t* fStations = new Int_t[5];
 229   for (Int_t i=0; i<5; i++) fStations[i] = 1;
 230   fStations[2] = 1;
 231
 232   if (fStations[2])
 233     {
 234       //********************************************************************
 235       //                            Station 3                             **
 236       //********************************************************************
 237       // indices 1 and 2 for first and second chambers in the station
 238       // iChamber (first chamber) kept for other quanties than Z,
 239       // assumed to be the same in both chambers
 240
 241       iChamber = &fMUON->Chamber(4);
 242       iChamber1 = iChamber;
 243       iChamber2 = &fMUON->Chamber(5);
 244
 245       //GetGeometry(4)->SetDebug(kTRUE);
 246       //GetGeometry(5)->SetDebug(kTRUE);
 247
 248       if (gAlice->GetModule("DIPO")) {
 249         // if DIPO is preset, the whole station will be placed in DDIP volume
 250         GetGeometry(4)->SetMotherVolume("DDIP");
 251         GetGeometry(5)->SetMotherVolume("DDIP");
 252       }
 253
 254       if (!gAlice->GetModule("DIPO")) {
 255         // Mother volume for each chamber in st3 are only defined if Dipole volue is there.
 256         // Outer excess and inner recess for mother volume radius
 257         // with respect to ROuter and RInner
 258         Float_t dframepIn = kRframeHeight;
 259         Float_t dframepOut= kVframeLength + 37.0; // Additional 37 cm gap is needed to wrap the corners of the slats
 260         Float_t tpar[3];
 261         Double_t dstation =  ( (-AliMUONConstants::DefaultChamberZ(5)) -
 262                                (-AliMUONConstants::DefaultChamberZ(4)) ) /2.1;
 263         tpar[0] = AliMUONConstants::Rmin(2)-dframepIn;
 264         tpar[1] = AliMUONConstants::Rmax(2)+dframepOut;
 265         tpar[2] = dstation;
 266         gMC->Gsvolu("CH05", "TUBE", idAir, tpar, 3);
 267         gMC->Gsvolu("CH06", "TUBE", idAir, tpar, 3);
 268         GetGeometry(4)->SetVolume("CH05");
 269         GetGeometry(5)->SetVolume("CH06");
 270       }
 271       // volumes for slat geometry (xx=5,..,10 chamber id):
 272       // Sxx0 Sxx1 Sxx2 Sxx3  -->   Slat Mother volumes
 273       // SxxG                          -->   Sensitive volume (gas)
 274       // SxxP                          -->   PCB (copper)
 275       // SxxI                          -->   Insulator (G10)
 276       // SxxC                          -->   Carbon panel
 277       // SxxN                          -->   Nomex comb
 278       // SxxX                          -->   Nomex bulk
 279       // SxxH, SxxV                    -->   Horizontal and Vertical frames (Noryl)
 280       // SB5x                          -->   Volumes for the 35 cm long PCB
 281       // slat dimensions: slat is a MOTHER volume!!! made of air
 282
 283       // only for chamber 5: slat 1 has a PCB shorter by 5cm!
 284
 285       Float_t tlength = 35.;
 286       Float_t panelpar2[3]  = { tlength/2., panelpar[1],  panelpar[2]};
 287       Float_t nomexpar2[3]  = { tlength/2., nomexpar[1],  nomexpar[2]};
 288       Float_t nomexbpar2[3] = { tlength/2., nomexbpar[1],  nomexbpar[2]};
 289       Float_t insupar2[3]   = { tlength/2., insupar[1],   insupar[2]};
 290       Float_t pcbpar2[3]    = { tlength/2., pcbpar[1],    pcbpar[2]};
 291       Float_t senspar2[3]   = { tlength/2., senspar[1],   senspar[2]};
 292       Float_t hFramepar2[3] = { tlength/2., hFramepar[1], hFramepar[2]};
 293       Float_t bFramepar2[3] = { tlength/2., bFramepar[1], bFramepar[2]};
 294       Float_t *dum=0;
 295       Float_t pcbDLength3   = (kPcbLength - tlength);
 296
 297       const Int_t   kNslats3         = 5;  // number of slats per quadrant
 298       const Int_t   kNPCB3[kNslats3] = {4, 4, 4, 3, 2}; // n PCB per slat
 299       const Float_t kXpos3[kNslats3] = {0., 0., 0., 0., 0.};//{31., 0., 0., 0., 0.};
 300       const Float_t kYpos3[kNslats3] = {0, 37.8, 37.7, 37.3, 33.7};
 301       Float_t slatLength3[kNslats3];
 302
 303       // create and position the slat (mother) volumes
 304
 305       char idSlatCh5[5];
 306       char idSlatCh6[5];
 307       Float_t xSlat3;
 308       Float_t ySlat3 = 0;
 309       Float_t angle = 0.;
 310       Float_t spar2[3];
 311       for (i = 0; i < kNslats3; i++){
 312
 313         slatLength3[i] = kPcbLength * kNPCB3[i] + 2.* kVframeLength;
 314         xSlat3 = slatLength3[i]/2. +  kDslatLength + kXpos3[i];
 315         ySlat3 += kYpos3[i];
 316
 317         spar[0] = slatLength3[i]/2.;
 318         spar[1] = kSlatHeight/2.;
 319         spar[2] = kSlatWidth/2.;
 320         // take away 5 cm from the first slat in chamber 5
 321         if (i == 0 || i == 1 || i == 2) { // 1 pcb is shortened by 5cm
 322           spar2[0] = spar[0] - pcbDLength3/2.;
 323         } else {
 324           spar2[0] = spar[0];
 325         }
 326         spar2[1] = spar[1];
 327         spar2[2] = spar[2];
 328         Float_t dzCh3 = dzCh;
 329         Float_t zSlat3 = (i%2 ==0)? -zSlat : zSlat; // seems not that zSlat3 = zSlat4 & 5 refering to plan PQ7EN345-6 ?
 330
 331         sprintf(idSlatCh5,"LA%d",i+kNslats3-1);
 332         gMC->Gsvolu(idSlatCh5,"BOX",kSlatMaterial,spar2,3);
 333         detElemId = 509 - (i + kNslats3-1-4);
 334         GetEnvelopes(4)->AddEnvelope(idSlatCh5, detElemId, true, TGeoTranslation(xSlat3, ySlat3, -zSlat3 + dzCh3),
 335                                      TGeoRotation("rot1",90,angle,90,90+angle,0,0) );
 336
 337         sprintf(idSlatCh5,"LA%d",3*kNslats3-2+i);
 338         gMC->Gsvolu(idSlatCh5,"BOX",kSlatMaterial,spar2,3);
 339         detElemId = 500 + (i + kNslats3-1-4);
 340         GetEnvelopes(4)->AddEnvelope(idSlatCh5, detElemId, true, TGeoTranslation(-xSlat3, ySlat3, zSlat3 - dzCh3),
 341                                      TGeoRotation("rot2",90,180+angle,90,90+angle,180,0) );
 342
 343         if (i > 0) {
 344           sprintf(idSlatCh5,"LA%d",kNslats3-1-i);
 345           gMC->Gsvolu(idSlatCh5,"BOX",kSlatMaterial,spar2,3);
 346           detElemId = 509 + (i + kNslats3-1-4);
 347           GetEnvelopes(4)->AddEnvelope(idSlatCh5, detElemId, true, TGeoTranslation(xSlat3, -ySlat3, -zSlat3 + dzCh3),
 348                                        TGeoRotation("rot3",90,angle,90,270+angle,180,0) );
 349
 350           sprintf(idSlatCh5,"LA%d",3*kNslats3-2-i);
 351           gMC->Gsvolu(idSlatCh5,"BOX",kSlatMaterial,spar2,3);
 352           detElemId = 518 - (i + kNslats3-1-4);
 353           GetEnvelopes(4)->AddEnvelope(idSlatCh5, detElemId, true, TGeoTranslation(-xSlat3, -ySlat3, zSlat3 - dzCh3),
 354                                        TGeoRotation("rot4",90,180+angle,90,270+angle,0,0) );
 355         }
 356
 357         sprintf(idSlatCh6,"LB%d",kNslats3-1+i);
 358         gMC->Gsvolu(idSlatCh6,"BOX",kSlatMaterial,spar,3);
 359         detElemId = 609 - (i  + kNslats3-1-4);
 360         GetEnvelopes(5)->AddEnvelope(idSlatCh6, detElemId, true, TGeoTranslation(xSlat3, ySlat3, -zSlat3 + dzCh3),
 361                                      TGeoRotation("rot5",90,angle,90,90+angle,0,0) );
 362         sprintf(idSlatCh6,"LB%d",3*kNslats3-2+i);
 363         gMC->Gsvolu(idSlatCh6,"BOX",kSlatMaterial,spar,3);
 364         detElemId = 600 + (i + kNslats3-1-4);
 365         GetEnvelopes(5)->AddEnvelope(idSlatCh6, detElemId, true, TGeoTranslation(-xSlat3, ySlat3, zSlat3 - dzCh3),
 366                                      TGeoRotation("rot6",90,180+angle,90,90+angle,180,0) );
 367
 368         if (i > 0) {
 369           sprintf(idSlatCh6,"LB%d",kNslats3-1-i);
 370           gMC->Gsvolu(idSlatCh6,"BOX",kSlatMaterial,spar,3);
 371           detElemId = 609 + (i + kNslats3-1-4);
 372           GetEnvelopes(5)->AddEnvelope(idSlatCh6, detElemId, true, TGeoTranslation(xSlat3, -ySlat3, -zSlat3 + dzCh3),
 373                                        TGeoRotation("rot7",90,angle,90,270+angle,180,0) );
 374
 375           sprintf(idSlatCh6,"LB%d",3*kNslats3-2-i);
 376           gMC->Gsvolu(idSlatCh6,"BOX",kSlatMaterial,spar,3);
 377           detElemId = 618 - (i + kNslats3-1-4);
 378           GetEnvelopes(5)->AddEnvelope(idSlatCh6, detElemId, true, TGeoTranslation(-xSlat3, -ySlat3, zSlat3 - dzCh3),
 379                                        TGeoRotation("rot8",90,180+angle,90,270+angle,0,0) );
 380         }
 381       }
 382
 383       // create the panel volume
 384
 385       gMC->Gsvolu("S05C","BOX",kCarbonMaterial,panelpar,3);
 386       gMC->Gsvolu("SB5C","BOX",kCarbonMaterial,panelpar2,3);
 387       gMC->Gsvolu("S06C","BOX",kCarbonMaterial,panelpar,3);
 388
 389       // create the nomex volume (honey comb)
 390
 391       gMC->Gsvolu("S05N","BOX",kNomexMaterial,nomexpar,3);
 392       gMC->Gsvolu("SB5N","BOX",kNomexMaterial,nomexpar2,3);
 393       gMC->Gsvolu("S06N","BOX",kNomexMaterial,nomexpar,3);
 394
 395       // create the nomex volume (bulk)
 396
 397       gMC->Gsvolu("S05X","BOX",kNomexBMaterial,nomexbpar,3);
 398       gMC->Gsvolu("SB5X","BOX",kNomexBMaterial,nomexbpar2,3);
 399       gMC->Gsvolu("S06X","BOX",kNomexBMaterial,nomexbpar,3);
 400
 401       // create the insulating material volume
 402
 403       gMC->Gsvolu("S05I","BOX",kInsuMaterial,insupar,3);
 404       gMC->Gsvolu("SB5I","BOX",kInsuMaterial,insupar2,3);
 405       gMC->Gsvolu("S06I","BOX",kInsuMaterial,insupar,3);
 406
 407       // create the PCB volume
 408
 409       gMC->Gsvolu("S05P","BOX",kPcbMaterial,pcbpar,3);
 410       gMC->Gsvolu("SB5P","BOX",kPcbMaterial,pcbpar2,3);
 411       gMC->Gsvolu("S06P","BOX",kPcbMaterial,pcbpar,3);
 412
 413       // create the sensitive volumes,
 414
 415       gMC->Gsvolu("S05G","BOX",kSensMaterial,dum,0);
 416       gMC->Gsvolu("S06G","BOX",kSensMaterial,dum,0);
 417
 418       // create the vertical frame volume
 419
 420       gMC->Gsvolu("S05V","BOX",kVframeMaterial,vFramepar,3);
 421       gMC->Gsvolu("S06V","BOX",kVframeMaterial,vFramepar,3);
 422
 423       // create the horizontal frame volume
 424
 425       gMC->Gsvolu("S05H","BOX",kHframeMaterial,hFramepar,3);
 426       gMC->Gsvolu("SB5H","BOX",kHframeMaterial,hFramepar2,3);
 427       gMC->Gsvolu("S06H","BOX",kHframeMaterial,hFramepar,3);
 428
 429       // create the horizontal border volume
 430
 431       gMC->Gsvolu("S05B","BOX",kBframeMaterial,bFramepar,3);
 432       gMC->Gsvolu("SB5B","BOX",kBframeMaterial,bFramepar2,3);
 433       gMC->Gsvolu("S06B","BOX",kBframeMaterial,bFramepar,3);
 434
 435       index = 0;
 436       for (i = 0; i<kNslats3; i++){
 437         for (Int_t quadrant = 1; quadrant <= 4; quadrant++) {
 438
 439           if (i == 0 && quadrant == 2) continue;
 440           if (i == 0 && quadrant == 4) continue;
 441
 442           sprintf(idSlatCh5,"LA%d",ConvertSlatNum(i,quadrant,kNslats3-1));
 443           sprintf(idSlatCh6,"LB%d",ConvertSlatNum(i,quadrant,kNslats3-1));
 444           Float_t xvFrame  = (slatLength3[i] - kVframeLength)/2.;
 445           Float_t xvFrame2  = xvFrame;
 446
 447           if (i == 0 || i == 1 || i == 2) xvFrame2 -= pcbDLength3/2.;
 448
 449           // position the vertical frames
 450           if ( i > 2) {
 451             GetEnvelopes(4)->AddEnvelopeConstituent("S05V", idSlatCh5,
 452                                                     (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 453             GetEnvelopes(4)->AddEnvelopeConstituent("S05V", idSlatCh5,
 454                                                     (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 455             GetEnvelopes(5)->AddEnvelopeConstituent("S06V", idSlatCh6,
 456                                                     (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 457             GetEnvelopes(5)->AddEnvelopeConstituent("S06V", idSlatCh6,
 458                                                     (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 459           }
 460
 461           if (i == 2) {
 462             GetEnvelopes(4)->AddEnvelopeConstituent("S05V", idSlatCh5,
 463                                                     (2*i-1)*10+quadrant,TGeoTranslation(xvFrame2,0.,0.));
 464             GetEnvelopes(4)->AddEnvelopeConstituent("S05V", idSlatCh5,
 465                                                     (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 466             GetEnvelopes(5)->AddEnvelopeConstituent("S06V", idSlatCh6,
 467                                                     (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 468             GetEnvelopes(5)->AddEnvelopeConstituent("S06V", idSlatCh6,
 469                                                     (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 470           }
 471
 472           if (i == 0 || i == 1) { // no rounded spacer for the moment (Ch. Finck)
 473             GetEnvelopes(4)->AddEnvelopeConstituent("S05V", idSlatCh5,
 474                                                     (2*i-1)*10+quadrant,TGeoTranslation(xvFrame2,0.,0.));
 475             GetEnvelopes(5)->AddEnvelopeConstituent("S06V", idSlatCh6,
 476                                                     (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 477           }
 478
 479           // position the panels and the insulating material
 480           for (j = 0; j < kNPCB3[i]; j++){
 481             if (i == 1 && j == 0) continue;
 482             if (i == 0 && j == 0) continue;
 483             index++;
 484             Float_t xx = kSensLength * (-kNPCB3[i]/2. + j + 0.5);
 485             Float_t xx2 = xx - pcbDLength3/2.;
 486
 487             Float_t zPanel = spar[2] - nomexbpar[2];
 488
 489             if ( (i == 0 || i == 1 || i == 2) && j == kNPCB3[i]-1) { // 1 pcb is shortened by 5cm
 490               GetEnvelopes(4)->AddEnvelopeConstituent("SB5X", idSlatCh5, 2*index-1,TGeoTranslation(xx2,0.,zPanel));
 491               GetEnvelopes(4)->AddEnvelopeConstituent("SB5X", idSlatCh5, 2*index,TGeoTranslation(xx2,0.,-zPanel));
 492               GetEnvelopes(4)->AddEnvelopeConstituent("SB5I", idSlatCh5, index,TGeoTranslation(xx2,0.,0.));
 493             } else {
 494               GetEnvelopes(4)->AddEnvelopeConstituent("S05X", idSlatCh5, 2*index-1,TGeoTranslation(xx,0.,zPanel));
 495               GetEnvelopes(4)->AddEnvelopeConstituent("S05X", idSlatCh5, 2*index,TGeoTranslation(xx,0.,-zPanel));
 496               GetEnvelopes(4)->AddEnvelopeConstituent("S05I", idSlatCh5, index,TGeoTranslation(xx,0.,0.));
 497             }
 498             GetEnvelopes(5)->AddEnvelopeConstituent("S06X", idSlatCh6, 2*index-1,TGeoTranslation(xx,0.,zPanel));
 499             GetEnvelopes(5)->AddEnvelopeConstituent("S06X", idSlatCh6, 2*index,TGeoTranslation(xx,0.,-zPanel));
 500             GetEnvelopes(5)->AddEnvelopeConstituent("S06I", idSlatCh6, index,TGeoTranslation(xx,0.,0.));
 501
 502           }
 503         }
 504       }
 505
 506       // position the nomex volume inside the panel volume
 507       gMC->Gspos("S05N",1,"S05C",0.,0.,0.,0,"ONLY");
 508       gMC->Gspos("SB5N",1,"SB5C",0.,0.,0.,0,"ONLY");
 509       gMC->Gspos("S06N",1,"S06C",0.,0.,0.,0,"ONLY");
 510
 511       // position panel volume inside the bulk nomex material volume
 512       gMC->Gspos("S05C",1,"S05X",0.,0.,kNomexBWidth/2.,0,"ONLY");
 513       gMC->Gspos("SB5C",1,"SB5X",0.,0.,kNomexBWidth/2.,0,"ONLY");
 514       gMC->Gspos("S06C",1,"S06X",0.,0.,kNomexBWidth/2.,0,"ONLY");
 515
 516       // position the PCB volume inside the insulating material volume
 517       gMC->Gspos("S05P",1,"S05I",0.,0.,0.,0,"ONLY");
 518       gMC->Gspos("SB5P",1,"SB5I",0.,0.,0.,0,"ONLY");
 519       gMC->Gspos("S06P",1,"S06I",0.,0.,0.,0,"ONLY");
 520
 521       // position the horizontal frame volume inside the PCB volume
 522       gMC->Gspos("S05H",1,"S05P",0.,0.,0.,0,"ONLY");
 523       gMC->Gspos("SB5H",1,"SB5P",0.,0.,0.,0,"ONLY");
 524       gMC->Gspos("S06H",1,"S06P",0.,0.,0.,0,"ONLY");
 525
 526       // position the sensitive volume inside the horizontal frame volume
 527       gMC->Gsposp("S05G",1,"S05H",0.,0.,0.,0,"ONLY",senspar,3);
 528       gMC->Gsposp("S05G",1,"SB5H",0.,0.,0.,0,"ONLY",senspar2,3);
 529       gMC->Gsposp("S06G",1,"S06H",0.,0.,0.,0,"ONLY",senspar,3);
 530
 531
 532       // position the border volumes inside the PCB volume
 533       Float_t yborder = ( kPcbHeight - kBframeHeight ) / 2.;
 534       gMC->Gspos("S05B",1,"S05P",0., yborder,0.,0,"ONLY");
 535       gMC->Gspos("S05B",2,"S05P",0.,-yborder,0.,0,"ONLY");
 536       gMC->Gspos("SB5B",1,"SB5P",0., yborder,0.,0,"ONLY");
 537       gMC->Gspos("SB5B",2,"SB5P",0.,-yborder,0.,0,"ONLY");
 538
 539       gMC->Gspos("S06B",1,"S06P",0., yborder,0.,0,"ONLY");
 540       gMC->Gspos("S06B",2,"S06P",0.,-yborder,0.,0,"ONLY");
 541
 542       // create the NULOC volume and position it in the horizontal frame
 543       gMC->Gsvolu("S05E","BOX",kNulocMaterial,nulocpar,3);
 544       gMC->Gsvolu("S06E","BOX",kNulocMaterial,nulocpar,3);
 545       index = 0;
 546       Float_t xxmax2 = xxmax - pcbDLength3/2.;
 547       for (xx = -xxmax; xx <= xxmax; xx += 2*kNulocLength) {
 548         index++;
 549         gMC->Gspos("S05E",2*index-1,"S05B", xx, 0.,-kBframeWidth/2. + kNulocWidth/2, 0, "ONLY");
 550         gMC->Gspos("S05E",2*index  ,"S05B", xx, 0., kBframeWidth/2. - kNulocWidth/2, 0, "ONLY");
 551         gMC->Gspos("S06E",2*index-1,"S06B", xx, 0.,-kBframeWidth/2. + kNulocWidth/2, 0, "ONLY");
 552         gMC->Gspos("S06E",2*index  ,"S06B", xx, 0., kBframeWidth/2.-  kNulocWidth/2, 0, "ONLY");
 553         if (xx > -xxmax2 && xx< xxmax2) {
 554           gMC->Gspos("S05E",2*index-1,"SB5B", xx, 0.,-kBframeWidth/2.+ kNulocWidth/2, 0, "ONLY");
 555           gMC->Gspos("S05E",2*index  ,"SB5B", xx, 0., kBframeWidth/2.- kNulocWidth/2, 0, "ONLY");
 556         }
 557       }
 558
 559       // position the volumes approximating the circular section of the pipe
 560       Float_t epsilon = 0.001;
 561       Int_t ndiv = 6;
 562       Int_t imax = 1;
 563       Double_t divpar[3];
 564       Double_t dydiv = kSensHeight/ndiv;
 565       Double_t ydiv  = (kSensHeight - dydiv)/2.;
 566       Double_t rmin  = AliMUONConstants::Rmin(2);// Same radius for both chamber in St3
 567       Double_t xdiv  = 0.;
 568       Float_t xvol;
 569       Float_t yvol;
 570
 571       for (Int_t idiv = 0; idiv < ndiv; idiv++){
 572         ydiv += dydiv;
 573         xdiv = 0.;
 574         if (ydiv < rmin) xdiv = rmin * TMath::Sin( TMath::ACos((ydiv-dydiv/2.)/rmin) );
 575         divpar[0] = (kPcbLength - xdiv)/2.;
 576         divpar[1] = dydiv/2. - epsilon;
 577         divpar[2] = kSensWidth/2.;
 578         xvol = (kPcbLength + xdiv)/2.;
 579         yvol = ydiv;
 580
 581         // Volumes close to the beam pipe for slat i=1 so 4 slats per chamber
 582         for (Int_t quadrant = 1; quadrant <= 4; quadrant++) {
 583           sprintf(idSlatCh5,"LA%d",ConvertSlatNum(1,quadrant,kNslats3-1));
 584           sprintf(idSlatCh6,"LB%d",ConvertSlatNum(1,quadrant,kNslats3-1));
 585
 586           GetEnvelopes(4)->AddEnvelopeConstituentParam("S05G", idSlatCh5, quadrant*100+imax+4*idiv+1,
 587                                                        TGeoTranslation(xvol-(kPcbLength * kNPCB3[1]/2.),yvol-kPcbLength,0.),3,divpar);
 588
 589           GetEnvelopes(5)->AddEnvelopeConstituentParam("S06G", idSlatCh6,  quadrant*100+imax+4*idiv+1,
 590                                                        TGeoTranslation(xvol-(kPcbLength * kNPCB3[1]/2.),yvol-kPcbLength,0.),3,divpar);
 591         }
 592       }
 593
 594       // Volumes close to the beam pipe for slat i=0 so 2 slats per chamber (central slat for station 3)
 595       //      Gines Martinez, Subatech sep 04
 596       // 9 box volumes are used to define the PCB closed to the beam pipe of the slat 122000SR1 of chamber 5 and 6 of St3
 597       // Accordingly to plan PQ-LAT-SR1 of CEA-DSM-DAPNIA-SIS/BE ph HARDY 8-Oct-2002
 598       // Rmin = 31.5 cm
 599       rmin = AliMUONConstants::Rmin(2); // Same radius for both chamber in St3
 600       ndiv  = 9;
 601       dydiv = kSensHeight/ndiv;           // Vertical size of the box volume approximating the rounded PCB
 602       ydiv  = -kSensHeight/2 + dydiv/2.;   // Initializing vertical position of the volume from bottom
 603       xdiv  = 0.;                         // Initializing horizontal position of the box volumes
 604
 605       for (Int_t idiv = 0; idiv < ndiv; idiv++){
 606         xdiv = TMath::Abs( rmin * TMath::Sin( TMath::ACos(ydiv/rmin) ) );
 607         divpar[0] = (kPcbLength - xdiv)/2.; // Dimension of the box volume
 608         divpar[1] = dydiv/2. - epsilon;
 609         divpar[2] = kSensWidth/2.;
 610         xvol = (kPcbLength + xdiv)/2.; //2D traslition for positionning of box volume
 611         yvol =  ydiv;
 612         Int_t side;
 613         for (side = 1; side <= 2; side++) {
 614           sprintf(idSlatCh5,"LA%d",4);
 615           sprintf(idSlatCh6,"LB%d",4);
 616           if(side == 2) {
 617             sprintf(idSlatCh5,"LA%d",13);
 618             sprintf(idSlatCh6,"LB%d",13);
 619           }
 620           GetEnvelopes(4)->AddEnvelopeConstituentParam("S05G", idSlatCh5,500+side*100+imax+4*idiv+1,
 621                                                        TGeoTranslation(xvol-(kPcbLength * kNPCB3[0]/2.),yvol,0.),3,divpar);
 622
 623           GetEnvelopes(5)->AddEnvelopeConstituentParam("S06G", idSlatCh6,500+side*100+imax+4*idiv+1,
 624                                                        TGeoTranslation(xvol-(kPcbLength * kNPCB3[0]/2.),yvol,0.),3,divpar);
 625         }
 626         ydiv += dydiv; // Going from bottom to top
 627       }
 628       // cout << "Geometry for Station 3...... done" << endl;
 629     }
 630
 631   if (fStations[3]) {
 632
 633
 634     // //********************************************************************
 635     // //                            Station 4                             **
 636     // //********************************************************************
 637     //      // indices 1 and 2 for first and second chambers in the station
 638     //      // iChamber (first chamber) kept for other quanties than Z,
 639     //      // assumed to be the same in both chambers
 640     //      corrected geometry (JP. Cussonneau, Ch. Finck)
 641
 642     iChamber = &fMUON->Chamber(6);
 643     iChamber1 = iChamber;
 644     iChamber2 = &fMUON->Chamber(7);
 645
 646     const Int_t   kNslats4          = 7;  // number of slats per quadrant
 647     const Int_t   kNPCB4[kNslats4]  = {5, 6, 5, 5, 4, 3, 2}; // n PCB per slat
 648     const Float_t kXpos4[kNslats4]  = {38.2, 0., 0., 0., 0., 0., 0.};
 649     const Float_t kYpos41[kNslats4] = {0., 38.2, 34.40, 36.60, 29.3, 37.0, 28.6};
 650     const Float_t kYpos42[kNslats4] = {0., 38.2, 37.85, 37.55, 29.4, 37.0, 28.6};
 651
 652     Float_t slatLength4[kNslats4];
 653
 654
 655     // Mother volume for each chamber
 656     // Outer excess and inner recess for mother volume radius
 657     // with respect to ROuter and RInner
 658     Float_t dframepIn = kRframeHeight;
 659     Float_t dframepOut= kVframeLength + 40.0; // Additional 30 cm gap is needed to wrap the corners of the slats
 660     Float_t tpar[3];
 661     Double_t dstation =  ( (-AliMUONConstants::DefaultChamberZ(7)) -
 662                            (-AliMUONConstants::DefaultChamberZ(6)) ) /2.1;
 663     tpar[0] = AliMUONConstants::Rmin(3)-dframepIn;
 664     tpar[1] = AliMUONConstants::Rmax(3)+dframepOut;
 665     tpar[2] = dstation;
 666     gMC->Gsvolu("CH07", "TUBE", idAir, tpar, 3);
 667     gMC->Gsvolu("CH08", "TUBE", idAir, tpar, 3);
 668     GetGeometry(6)->SetVolume("CH07");
 669     GetGeometry(7)->SetVolume("CH08");
 670
 671     // create and position the slat (mother) volumes
 672
 673     char idSlatCh7[5];
 674     char idSlatCh8[5];
 675     Float_t xSlat4;
 676     Float_t ySlat41 = 0;
 677     Float_t ySlat42 = 0;
 678
 679     angle = 0.;
 680
 681     for (i = 0; i<kNslats4; i++){
 682       slatLength4[i] = kPcbLength * kNPCB4[i] + 2. * kVframeLength;
 683       xSlat4 = slatLength4[i]/2. + kDslatLength + kXpos4[i];
 684       ySlat41 += kYpos41[i];
 685       ySlat42 += kYpos42[i];
 686
 687       spar[0] = slatLength4[i]/2.;
 688       spar[1] = kSlatHeight/2.;
 689       spar[2] = kSlatWidth/2.;
 690       Float_t dzCh4 = dzCh;
 691       Float_t zSlat4 = (i%2 ==0)? -zSlat : zSlat;
 692
 693       sprintf(idSlatCh7,"LC%d",kNslats4-1+i);
 694       gMC->Gsvolu(idSlatCh7,"BOX",kSlatMaterial,spar,3);
 695       detElemId = 713 - (i + kNslats4-1-6);
 696       GetEnvelopes(6)->AddEnvelope(idSlatCh7, detElemId, true, TGeoTranslation(xSlat4, ySlat41, -zSlat4 + dzCh4),
 697                                    TGeoRotation("rot1",90,angle,90,90+angle,0,0) );
 698
 699       sprintf(idSlatCh7,"LC%d",3*kNslats4-2+i);
 700       gMC->Gsvolu(idSlatCh7,"BOX",kSlatMaterial,spar,3);
 701       detElemId = 700 + (i + kNslats4-1-6);
 702       GetEnvelopes(6)->AddEnvelope(idSlatCh7, detElemId, true, TGeoTranslation(-xSlat4, ySlat41, zSlat4 - dzCh4),
 703                                    TGeoRotation("rot2",90,180+angle,90,90+angle,180,0) );
 704
 705       if (i > 0) {
 706         sprintf(idSlatCh7,"LC%d",kNslats4-1-i);
 707         gMC->Gsvolu(idSlatCh7,"BOX",kSlatMaterial,spar,3);
 708         detElemId = 713 + (i + kNslats4-1-6);
 709         GetEnvelopes(6)->AddEnvelope(idSlatCh7, detElemId, true, TGeoTranslation(xSlat4, -ySlat41, -zSlat4 + dzCh4),
 710                                      TGeoRotation("rot3",90,angle,90,270+angle,180,0) );
 711
 712         sprintf(idSlatCh7,"LC%d",3*kNslats4-2-i);
 713         detElemId = 726 - (i + kNslats4-1-6);
 714         gMC->Gsvolu(idSlatCh7,"BOX",kSlatMaterial,spar,3);
 715         GetEnvelopes(6)->AddEnvelope(idSlatCh7, detElemId, true,
 716                                      TGeoTranslation(-xSlat4, -ySlat41, zSlat4 - dzCh4),
 717                                      TGeoRotation("rot4",90,180+angle,90,270+angle,0,0) );
 718       }
 719
 720       sprintf(idSlatCh8,"LD%d",kNslats4-1+i);
 721       gMC->Gsvolu(idSlatCh8,"BOX",kSlatMaterial,spar,3);
 722       detElemId = 813 - (i + kNslats4-1-6);
 723       GetEnvelopes(7)->AddEnvelope(idSlatCh8, detElemId, true, TGeoTranslation(xSlat4, ySlat42, -zSlat4 + dzCh4),
 724                                    TGeoRotation("rot5",90,angle,90,90+angle,0,0) );
 725
 726       sprintf(idSlatCh8,"LD%d",3*kNslats4-2+i);
 727       detElemId = 800 + (i + kNslats4-1-6);
 728       gMC->Gsvolu(idSlatCh8,"BOX",kSlatMaterial,spar,3);
 729       GetEnvelopes(7)->AddEnvelope(idSlatCh8, detElemId, true, TGeoTranslation(-xSlat4, ySlat42, zSlat4 - dzCh4),
 730                                    TGeoRotation("rot6",90,180+angle,90,90+angle,180,0) );
 731       if (i > 0) {
 732         sprintf(idSlatCh8,"LD%d",kNslats4-1-i);
 733         detElemId = 813 + (i + kNslats4-1-6);
 734         gMC->Gsvolu(idSlatCh8,"BOX",kSlatMaterial,spar,3);
 735         GetEnvelopes(7)->AddEnvelope(idSlatCh8, detElemId, true, TGeoTranslation(xSlat4, -ySlat42, -zSlat4 + dzCh4),
 736                                      TGeoRotation("rot7",90,angle,90,270+angle,180,0) );
 737         sprintf(idSlatCh8,"LD%d",3*kNslats4-2-i);
 738         detElemId = 826 - (i + kNslats4-1-6);
 739         gMC->Gsvolu(idSlatCh8,"BOX",kSlatMaterial,spar,3);
 740         GetEnvelopes(7)->AddEnvelope(idSlatCh8, detElemId, true, TGeoTranslation(-xSlat4, -ySlat42, zSlat4 - dzCh4),
 741                                      TGeoRotation("rot8",90,180+angle,90,270+angle,0,0) );
 742       }
 743     }
 744
 745     // create the panel volume
 746
 747     gMC->Gsvolu("S07C","BOX",kCarbonMaterial,panelpar,3);
 748     gMC->Gsvolu("S08C","BOX",kCarbonMaterial,panelpar,3);
 749
 750     // create the nomex volume
 751
 752     gMC->Gsvolu("S07N","BOX",kNomexMaterial,nomexpar,3);
 753     gMC->Gsvolu("S08N","BOX",kNomexMaterial,nomexpar,3);
 754
 755
 756     // create the nomex volume (bulk)
 757
 758     gMC->Gsvolu("S07X","BOX",kNomexBMaterial,nomexbpar,3);
 759     gMC->Gsvolu("S08X","BOX",kNomexBMaterial,nomexbpar,3);
 760
 761     // create the insulating material volume
 762
 763     gMC->Gsvolu("S07I","BOX",kInsuMaterial,insupar,3);
 764     gMC->Gsvolu("S08I","BOX",kInsuMaterial,insupar,3);
 765
 766     // create the PCB volume
 767
 768     gMC->Gsvolu("S07P","BOX",kPcbMaterial,pcbpar,3);
 769     gMC->Gsvolu("S08P","BOX",kPcbMaterial,pcbpar,3);
 770
 771     // create the sensitive volumes,
 772
 773     gMC->Gsvolu("S07G","BOX",kSensMaterial,dum,0);
 774     gMC->Gsvolu("S08G","BOX",kSensMaterial,dum,0);
 775
 776     // create the vertical frame volume
 777
 778     gMC->Gsvolu("S07V","BOX",kVframeMaterial,vFramepar,3);
 779     gMC->Gsvolu("S08V","BOX",kVframeMaterial,vFramepar,3);
 780
 781     // create the horizontal frame volume
 782
 783     gMC->Gsvolu("S07H","BOX",kHframeMaterial,hFramepar,3);
 784     gMC->Gsvolu("S08H","BOX",kHframeMaterial,hFramepar,3);
 785
 786     // create the horizontal border volume
 787
 788     gMC->Gsvolu("S07B","BOX",kBframeMaterial,bFramepar,3);
 789     gMC->Gsvolu("S08B","BOX",kBframeMaterial,bFramepar,3);
 790
 791     index = 0;
 792     for (i = 0; i < kNslats4; i++){
 793       for (Int_t quadrant = 1; quadrant <= 4; quadrant++) {
 794
 795         if (i == 0 && quadrant == 2) continue;
 796         if (i == 0 && quadrant == 4) continue;
 797
 798         sprintf(idSlatCh7,"LC%d",ConvertSlatNum(i,quadrant,kNslats4-1));
 799         sprintf(idSlatCh8,"LD%d",ConvertSlatNum(i,quadrant,kNslats4-1));
 800         Float_t xvFrame  = (slatLength4[i] - kVframeLength)/2.;
 801
 802         // position the vertical frames
 803         if (i != 1) {
 804           GetEnvelopes(6)->AddEnvelopeConstituent("S07V", idSlatCh7, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 805           GetEnvelopes(6)->AddEnvelopeConstituent("S07V", idSlatCh7, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 806           GetEnvelopes(7)->AddEnvelopeConstituent("S08V", idSlatCh8, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 807           GetEnvelopes(7)->AddEnvelopeConstituent("S08V", idSlatCh8, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 808         } else { // no rounded spacer yet
 809           GetEnvelopes(6)->AddEnvelopeConstituent("S07V", idSlatCh7, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 810           // GetEnvelopes(6)->AddEnvelopeConstituent("S07V", idSlatCh7, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 811           GetEnvelopes(7)->AddEnvelopeConstituent("S08V", idSlatCh8, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 812           // GetEnvelopes(7)->AddEnvelopeConstituent("S08V", idSlatCh8, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 813         }
 814         // position the panels and the insulating material
 815         for (j = 0; j < kNPCB4[i]; j++){
 816           if (i == 1 && j == 0) continue;
 817           index++;
 818           Float_t xx = kSensLength * (-kNPCB4[i]/2.+j+.5);
 819
 820           Float_t zPanel = spar[2] - nomexbpar[2];
 821           GetEnvelopes(6)->AddEnvelopeConstituent("S07X", idSlatCh7, 2*index-1,TGeoTranslation(xx,0.,zPanel));
 822           GetEnvelopes(6)->AddEnvelopeConstituent("S07X", idSlatCh7, 2*index,TGeoTranslation(xx,0.,-zPanel));
 823           GetEnvelopes(6)->AddEnvelopeConstituent("S07I", idSlatCh7, index,TGeoTranslation(xx,0.,0.));
 824           GetEnvelopes(7)->AddEnvelopeConstituent("S08X", idSlatCh8, 2*index-1,TGeoTranslation(xx,0.,zPanel));
 825           GetEnvelopes(7)->AddEnvelopeConstituent("S08X", idSlatCh8, 2*index,TGeoTranslation(xx,0.,-zPanel));
 826           GetEnvelopes(7)->AddEnvelopeConstituent("S08I", idSlatCh8, index,TGeoTranslation(xx,0.,0.));
 827         }
 828       }
 829     }
 830
 831     // position the nomex volume inside the panel volume
 832     gMC->Gspos("S07N",1,"S07C",0.,0.,0.,0,"ONLY");
 833     gMC->Gspos("S08N",1,"S08C",0.,0.,0.,0,"ONLY");
 834
 835     // position panel volume inside the bulk nomex material volume
 836     gMC->Gspos("S07C",1,"S07X",0.,0.,kNomexBWidth/2.,0,"ONLY");
 837     gMC->Gspos("S08C",1,"S08X",0.,0.,kNomexBWidth/2.,0,"ONLY");
 838
 839     // position the PCB volume inside the insulating material volume
 840     gMC->Gspos("S07P",1,"S07I",0.,0.,0.,0,"ONLY");
 841     gMC->Gspos("S08P",1,"S08I",0.,0.,0.,0,"ONLY");
 842
 843     // position the horizontal frame volume inside the PCB volume
 844     gMC->Gspos("S07H",1,"S07P",0.,0.,0.,0,"ONLY");
 845     gMC->Gspos("S08H",1,"S08P",0.,0.,0.,0,"ONLY");
 846
 847     // position the sensitive volume inside the horizontal frame volume
 848     gMC->Gsposp("S07G",1,"S07H",0.,0.,0.,0,"ONLY",senspar,3);
 849     gMC->Gsposp("S08G",1,"S08H",0.,0.,0.,0,"ONLY",senspar,3);
 850
 851     // position the border volumes inside the PCB volume
 852     Float_t yborder = ( kPcbHeight - kBframeHeight ) / 2.;
 853     gMC->Gspos("S07B",1,"S07P",0., yborder,0.,0,"ONLY");
 854     gMC->Gspos("S07B",2,"S07P",0.,-yborder,0.,0,"ONLY");
 855     gMC->Gspos("S08B",1,"S08P",0., yborder,0.,0,"ONLY");
 856     gMC->Gspos("S08B",2,"S08P",0.,-yborder,0.,0,"ONLY");
 857
 858     // create the NULOC volume and position it in the horizontal frame
 859
 860     gMC->Gsvolu("S07E","BOX",kNulocMaterial,nulocpar,3);
 861     gMC->Gsvolu("S08E","BOX",kNulocMaterial,nulocpar,3);
 862     index = 0;
 863     for (xx = -xxmax; xx <= xxmax; xx += 2*kNulocLength) {
 864       index++;
 865       gMC->Gspos("S07E",2*index-1,"S07B", xx, 0.,-kBframeWidth/2. + kNulocWidth/2, 0, "ONLY");
 866       gMC->Gspos("S07E",2*index  ,"S07B", xx, 0., kBframeWidth/2. - kNulocWidth/2, 0, "ONLY");
 867       gMC->Gspos("S08E",2*index-1,"S08B", xx, 0.,-kBframeWidth/2. + kNulocWidth/2, 0, "ONLY");
 868       gMC->Gspos("S08E",2*index  ,"S08B", xx, 0., kBframeWidth/2. - kNulocWidth/2, 0, "ONLY");
 869     }
 870
 871     // position the volumes approximating the circular section of the pipe
 872
 873     Float_t epsilon = 0.001;
 874     Int_t ndiv = 10;
 875     Int_t imax = 1;
 876     Double_t divpar[3];
 877     Double_t dydiv = kSensHeight/ndiv;
 878     Double_t ydiv  = (kSensHeight - dydiv)/2.;
 879     Float_t rmin   = AliMUONConstants::Rmin(3); // Same radius for both chamber of St4
 880     Float_t xdiv   = 0.;
 881     Float_t xvol;
 882     Float_t yvol;
 883
 884     for (Int_t idiv = 0; idiv < ndiv; idiv++){
 885       ydiv += dydiv;
 886       xdiv = 0.;
 887       if (ydiv < rmin) xdiv = rmin * TMath::Sin( TMath::ACos((ydiv-dydiv/2.)/rmin) );
 888       divpar[0] = (kPcbLength - xdiv)/2.;
 889       divpar[1] = dydiv/2. - epsilon;
 890       divpar[2] = kSensWidth/2.;
 891       xvol = (kPcbLength + xdiv)/2.;
 892       yvol = ydiv ;
 893
 894       for (Int_t quadrant = 1; quadrant <= 4; quadrant++) {
 895         sprintf(idSlatCh7,"LC%d",ConvertSlatNum(1,quadrant,kNslats4-1));
 896         sprintf(idSlatCh8,"LD%d",ConvertSlatNum(1,quadrant,kNslats4-1));
 897
 898         GetEnvelopes(6)->AddEnvelopeConstituentParam("S07G",idSlatCh7, quadrant*100+imax+4*idiv+1,
 899                                                      TGeoTranslation(xvol-kPcbLength * kNPCB4[1]/2.,yvol-kPcbLength,0.),3,divpar);
 900
 901         GetEnvelopes(7)->AddEnvelopeConstituentParam("S08G", idSlatCh8, quadrant*100+imax+4*idiv+1,
 902                                                      TGeoTranslation(xvol-kPcbLength * kNPCB4[1]/2.,yvol-kPcbLength,0.),3,divpar);
 903       }
 904     }
 905     // cout << "Geometry for Station 4...... done" << endl;
 906
 907   }
 908
 909   if (fStations[4]) {
 910
 911
 912     // //********************************************************************
 913     // //                            Station 5                             **
 914     // //********************************************************************
 915     //      // indices 1 and 2 for first and second chambers in the station
 916     //      // iChamber (first chamber) kept for other quanties than Z,
 917     //      // assumed to be the same in both chambers
 918     //      corrected geometry (JP. Cussonneau, Ch. Finck)
 919
 920     iChamber = &fMUON->Chamber(8);
 921     iChamber1 = iChamber;
 922     iChamber2 = &fMUON->Chamber(9);
 923
 924     const Int_t   kNslats5         = 7;  // number of slats per quadrant
 925     const Int_t   kNPCB5[kNslats5] = {5, 6, 6, 6, 5, 4, 3}; // n PCB per slat
 926     const Float_t kXpos5[kNslats5] = {38.2, 0., 0., 0., 0., 0., 0.};
 927     const Float_t kYpos5[kNslats5] = {0., 38.2, 37.9, 37.6, 37.3, 37.05, 36.75};
 928     Float_t slatLength5[kNslats5];
 929
 930     // Mother volume for each chamber
 931     // Outer excess and inner recess for mother volume radius
 932     // with respect to ROuter and RInner
 933     Float_t dframepIn = kRframeHeight;
 934     Float_t dframepOut= kVframeLength + 40.0; // Additional 40 cm gap is needed to wrap the corners of the slats
 935     Float_t tpar[3];
 936     Double_t dstation =  ( (-AliMUONConstants::DefaultChamberZ(9)) -
 937                            (-AliMUONConstants::DefaultChamberZ(8)) ) /2.3;
 938     tpar[0] = AliMUONConstants::Rmin(4)-dframepIn;
 939     tpar[1] = AliMUONConstants::Rmax(4)+dframepOut;
 940     tpar[2] = dstation;
 941     gMC->Gsvolu("CH09", "TUBE", idAir, tpar, 3);
 942     gMC->Gsvolu("CH10", "TUBE", idAir, tpar, 3);
 943     GetGeometry(8)->SetVolume("CH09");
 944     GetGeometry(9)->SetVolume("CH10");
 945
 946     // create and position the slat (mother) volumes
 947
 948     char idSlatCh9[5];
 949     char idSlatCh10[5];
 950     Float_t xSlat5;
 951     Float_t ySlat5 = 0;
 952     angle = 0.;
 953
 954     for (i = 0; i < kNslats5; i++){
 955
 956       slatLength5[i] = kPcbLength * kNPCB5[i] + 2.* kVframeLength;
 957       xSlat5 = slatLength5[i]/2. + kDslatLength + kXpos5[i];
 958       ySlat5 += kYpos5[i];
 959
 960       spar[0] = slatLength5[i]/2.;
 961       spar[1] = kSlatHeight/2.;
 962       spar[2] = kSlatWidth/2.;
 963
 964       Float_t dzCh5  = dzCh;
 965       Float_t zSlat5 = (i%2 ==0)? -zSlat : zSlat;
 966
 967       sprintf(idSlatCh9,"LE%d",kNslats5-1+i);
 968       detElemId = 913 - (i + kNslats5-1-6);
 969       gMC->Gsvolu(idSlatCh9,"BOX",kSlatMaterial,spar,3);
 970       GetEnvelopes(8)->AddEnvelope(idSlatCh9, detElemId, true, TGeoTranslation(xSlat5, ySlat5, -zSlat5 + dzCh5),
 971                                    TGeoRotation("rot1",90,angle,90,90+angle,0,0) );
 972
 973       sprintf(idSlatCh9,"LE%d",3*kNslats5-2+i);
 974       detElemId = 900 + (i + kNslats5-1-6);
 975       gMC->Gsvolu(idSlatCh9,"BOX",kSlatMaterial,spar,3);
 976       GetEnvelopes(8)->AddEnvelope(idSlatCh9, detElemId, true, TGeoTranslation(-xSlat5, ySlat5, zSlat5 - dzCh5),
 977                                    TGeoRotation("rot2",90,180+angle,90,90+angle,180,0) );
 978
 979       if (i > 0) {
 980         sprintf(idSlatCh9,"LE%d",kNslats5-1-i);
 981         detElemId = 913 + (i + kNslats5-1-6);
 982         gMC->Gsvolu(idSlatCh9,"BOX",kSlatMaterial,spar,3);
 983         GetEnvelopes(8)->AddEnvelope(idSlatCh9, detElemId, true, TGeoTranslation(xSlat5, -ySlat5, -zSlat5 + dzCh5),
 984                                      TGeoRotation("rot3",90,angle,90,270+angle,180,0) );
 985
 986         sprintf(idSlatCh9,"LE%d",3*kNslats5-2-i);
 987         detElemId = 926 - (i + kNslats5-1-6);
 988         gMC->Gsvolu(idSlatCh9,"BOX",kSlatMaterial,spar,3);
 989         GetEnvelopes(8)->AddEnvelope(idSlatCh9, detElemId, true, TGeoTranslation(-xSlat5, -ySlat5, zSlat5 - dzCh5),
 990                                      TGeoRotation("rot4",90,180+angle,90,270+angle,0,0)  );
 991       }
 992
 993       sprintf(idSlatCh10,"LF%d",kNslats5-1+i);
 994       detElemId = 1013 - (i + kNslats5-1-6);
 995       gMC->Gsvolu(idSlatCh10,"BOX",kSlatMaterial,spar,3);
 996       GetEnvelopes(9)->AddEnvelope(idSlatCh10, detElemId, true, TGeoTranslation(xSlat5, ySlat5, -zSlat5 + dzCh5),
 997                                    TGeoRotation("rot5",90,angle,90,90+angle,0,0) );
 998
 999       sprintf(idSlatCh10,"LF%d",3*kNslats5-2+i);
1000       detElemId = 1000 + (i + kNslats5-1-6);
1001       gMC->Gsvolu(idSlatCh10,"BOX",kSlatMaterial,spar,3);
1002       GetEnvelopes(9)->AddEnvelope(idSlatCh10, detElemId, true, TGeoTranslation(-xSlat5, ySlat5, zSlat5 - dzCh5),
1003                                    TGeoRotation("rot6",90,180+angle,90,90+angle,180,0) );
1004
1005       if (i > 0) {
1006         sprintf(idSlatCh10,"LF%d",kNslats5-1-i);
1007         detElemId = 1013 + (i + kNslats5-1-6);
1008         gMC->Gsvolu(idSlatCh10,"BOX",kSlatMaterial,spar,3);
1009         GetEnvelopes(9)->AddEnvelope(idSlatCh10, detElemId, true, TGeoTranslation(xSlat5, -ySlat5, -zSlat5 + dzCh5),
1010                                      TGeoRotation("rot7",90,angle,90,270+angle,180,0) );
1011         sprintf(idSlatCh10,"LF%d",3*kNslats5-2-i);
1012         detElemId = 1026 - (i + kNslats5-1-6);
1013         gMC->Gsvolu(idSlatCh10,"BOX",kSlatMaterial,spar,3);
1014         GetEnvelopes(9)->AddEnvelope(idSlatCh10, detElemId, true, TGeoTranslation(-xSlat5, -ySlat5, zSlat5 - dzCh5),
1015                                      TGeoRotation("rot8",90,180+angle,90,270+angle,0,0) );
1016       }
1017     }
1018
1019     // create the panel volume
1020
1021     gMC->Gsvolu("S09C","BOX",kCarbonMaterial,panelpar,3);
1022     gMC->Gsvolu("S10C","BOX",kCarbonMaterial,panelpar,3);
1023
1024     // create the nomex volume
1025
1026     gMC->Gsvolu("S09N","BOX",kNomexMaterial,nomexpar,3);
1027     gMC->Gsvolu("S10N","BOX",kNomexMaterial,nomexpar,3);
1028
1029
1030     // create the nomex volume (bulk)
1031
1032     gMC->Gsvolu("S09X","BOX",kNomexBMaterial,nomexbpar,3);
1033     gMC->Gsvolu("S10X","BOX",kNomexBMaterial,nomexbpar,3);
1034
1035     // create the insulating material volume
1036
1037     gMC->Gsvolu("S09I","BOX",kInsuMaterial,insupar,3);
1038     gMC->Gsvolu("S10I","BOX",kInsuMaterial,insupar,3);
1039
1040     // create the PCB volume
1041
1042     gMC->Gsvolu("S09P","BOX",kPcbMaterial,pcbpar,3);
1043     gMC->Gsvolu("S10P","BOX",kPcbMaterial,pcbpar,3);
1044
1045     // create the sensitive volumes,
1046
1047     gMC->Gsvolu("S09G","BOX",kSensMaterial,dum,0);
1048     gMC->Gsvolu("S10G","BOX",kSensMaterial,dum,0);
1049
1050     // create the vertical frame volume
1051
1052     gMC->Gsvolu("S09V","BOX",kVframeMaterial,vFramepar,3);
1053     gMC->Gsvolu("S10V","BOX",kVframeMaterial,vFramepar,3);
1054
1055     // create the horizontal frame volume
1056
1057     gMC->Gsvolu("S09H","BOX",kHframeMaterial,hFramepar,3);
1058     gMC->Gsvolu("S10H","BOX",kHframeMaterial,hFramepar,3);
1059
1060     // create the horizontal border volume
1061
1062     gMC->Gsvolu("S09B","BOX",kBframeMaterial,bFramepar,3);
1063     gMC->Gsvolu("S10B","BOX",kBframeMaterial,bFramepar,3);
1064
1065     index = 0;
1066     for (i = 0; i < kNslats5; i++){
1067       for (Int_t quadrant = 1; quadrant <= 4; quadrant++) {
1068
1069         if (i == 0 && quadrant == 2) continue;
1070         if (i == 0 && quadrant == 4) continue;
1071
1072         sprintf(idSlatCh9,"LE%d",ConvertSlatNum(i,quadrant,kNslats5-1));
1073         sprintf(idSlatCh10,"LF%d",ConvertSlatNum(i,quadrant,kNslats5-1));
1074         Float_t xvFrame  = (slatLength5[i] - kVframeLength)/2.; // ok
1075
1076         // position the vertical frames (spacers)
1077         if (i != 1) {
1078           GetEnvelopes(8)->AddEnvelopeConstituent("S09V", idSlatCh9, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
1079           GetEnvelopes(8)->AddEnvelopeConstituent("S09V", idSlatCh9, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
1080           GetEnvelopes(9)->AddEnvelopeConstituent("S10V", idSlatCh10, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
1081           GetEnvelopes(9)->AddEnvelopeConstituent("S10V", idSlatCh10, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
1082         } else {  // no rounded spacer yet
1083           GetEnvelopes(8)->AddEnvelopeConstituent("S09V", idSlatCh9, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
1084           //       GetEnvelopes(8)->AddEnvelopeConstituent("S09V", idSlatCh9, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
1085           GetEnvelopes(9)->AddEnvelopeConstituent("S10V", idSlatCh10, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
1086           //       GetEnvelopes(9)->AddEnvelopeConstituent("S10V", idSlatCh10, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
1087         }
1088
1089         // position the panels and the insulating material
1090         for (j = 0; j < kNPCB5[i]; j++){
1091           if (i == 1 && j == 0) continue;
1092           index++;
1093           Float_t xx = kSensLength * (-kNPCB5[i]/2.+j+.5);
1094
1095           Float_t zPanel = spar[2] - nomexbpar[2];
1096           GetEnvelopes(8)->AddEnvelopeConstituent("S09X", idSlatCh9, 2*index-1,TGeoTranslation(xx,0.,zPanel));
1097           GetEnvelopes(8)->AddEnvelopeConstituent("S09X", idSlatCh9, 2*index,TGeoTranslation(xx,0.,-zPanel));
1098           GetEnvelopes(8)->AddEnvelopeConstituent("S09I", idSlatCh9, index,TGeoTranslation(xx,0.,0.));
1099
1100           GetEnvelopes(9)->AddEnvelopeConstituent("S10X", idSlatCh10, 2*index-1,TGeoTranslation(xx,0.,zPanel));
1101           GetEnvelopes(9)->AddEnvelopeConstituent("S10X", idSlatCh10, 2*index,TGeoTranslation(xx,0.,-zPanel));
1102           GetEnvelopes(9)->AddEnvelopeConstituent("S10I", idSlatCh10, index,TGeoTranslation(xx,0.,0.));
1103         }
1104       }
1105     }
1106
1107     // position the nomex volume inside the panel volume
1108     gMC->Gspos("S09N",1,"S09C",0.,0.,0.,0,"ONLY");
1109     gMC->Gspos("S10N",1,"S10C",0.,0.,0.,0,"ONLY");
1110
1111     // position panel  volume inside the bulk nomex material volume
1112     gMC->Gspos("S09C",1,"S09X",0.,0.,kNomexBWidth/2.,0,"ONLY");
1113     gMC->Gspos("S10C",1,"S10X",0.,0.,kNomexBWidth/2.,0,"ONLY");
1114
1115     // position the PCB volume inside the insulating material volume
1116     gMC->Gspos("S09P",1,"S09I",0.,0.,0.,0,"ONLY");
1117     gMC->Gspos("S10P",1,"S10I",0.,0.,0.,0,"ONLY");
1118
1119     // position the horizontal frame volume inside the PCB volume
1120     gMC->Gspos("S09H",1,"S09P",0.,0.,0.,0,"ONLY");
1121     gMC->Gspos("S10H",1,"S10P",0.,0.,0.,0,"ONLY");
1122
1123     // position the sensitive volume inside the horizontal frame volume
1124     gMC->Gsposp("S09G",1,"S09H",0.,0.,0.,0,"ONLY",senspar,3);
1125     gMC->Gsposp("S10G",1,"S10H",0.,0.,0.,0,"ONLY",senspar,3);
1126
1127     // position the border volumes inside the PCB volume
1128     Float_t yborder = ( kPcbHeight - kBframeHeight ) / 2.;
1129     gMC->Gspos("S09B",1,"S09P",0., yborder,0.,0,"ONLY");
1130     gMC->Gspos("S09B",2,"S09P",0.,-yborder,0.,0,"ONLY");
1131     gMC->Gspos("S10B",1,"S10P",0., yborder,0.,0,"ONLY");
1132     gMC->Gspos("S10B",2,"S10P",0.,-yborder,0.,0,"ONLY");
1133
1134     //      // create the NULOC volume and position it in the horizontal frame
1135
1136     gMC->Gsvolu("S09E","BOX",kNulocMaterial,nulocpar,3);
1137     gMC->Gsvolu("S10E","BOX",kNulocMaterial,nulocpar,3);
1138     index = 0;
1139     for (xx = -xxmax; xx <= xxmax; xx += 2*kNulocLength) {
1140       index++;
1141       gMC->Gspos("S09E",2*index-1,"S09B", xx, 0.,-kBframeWidth/2. + kNulocWidth/2, 0, "ONLY");
1142       gMC->Gspos("S09E",2*index  ,"S09B", xx, 0., kBframeWidth/2. - kNulocWidth/2, 0, "ONLY");
1143       gMC->Gspos("S10E",2*index-1,"S10B", xx, 0.,-kBframeWidth/2. + kNulocWidth/2, 0, "ONLY");
1144       gMC->Gspos("S10E",2*index  ,"S10B", xx, 0., kBframeWidth/2. - kNulocWidth/2, 0, "ONLY");
1145     }
1146
1147
1148     // position the volumes approximating the circular section of the pipe
1149     Float_t epsilon = 0.001;
1150     Int_t ndiv = 10;
1151     Int_t imax = 1;
1152     Double_t divpar[3];
1153     Double_t dydiv = kSensHeight/ndiv;
1154     Double_t ydiv  = (kSensHeight - dydiv)/2.;
1155     Float_t rmin   = AliMUONConstants::Rmin(4);
1156     Float_t xdiv   = 0.;
1157     Float_t xvol;
1158     Float_t yvol;
1159
1160     for (Int_t idiv = 0; idiv < ndiv; idiv++){
1161       ydiv += dydiv;
1162       xdiv = 0.;
1163       if (ydiv < rmin) xdiv = rmin * TMath::Sin( TMath::ACos((ydiv-dydiv/2.)/rmin) );
1164       divpar[0] = (kPcbLength - xdiv)/2.;
1165       divpar[1] = dydiv/2. - epsilon;
1166       divpar[2] = kSensWidth/2.;
1167       xvol = (kPcbLength + xdiv)/2.;
1168       yvol = ydiv;
1169
1170       for (Int_t quadrant = 1; quadrant <= 4; quadrant++) {
1171         sprintf(idSlatCh9,"LE%d",ConvertSlatNum(1,quadrant,kNslats5-1));
1172         sprintf(idSlatCh10,"LF%d",ConvertSlatNum(1,quadrant,kNslats5-1));
1173
1174         GetEnvelopes(8)->AddEnvelopeConstituentParam("S09G", idSlatCh9, quadrant*100+imax+4*idiv+1,
1175                                                      TGeoTranslation(xvol-kPcbLength * kNPCB5[1]/2.,yvol-kPcbLength,0.),3,divpar);
1176         GetEnvelopes(9)->AddEnvelopeConstituentParam("S10G", idSlatCh10,  quadrant*100+imax+4*idiv+1,
1177                                                      TGeoTranslation(xvol-kPcbLength * kNPCB5[1]/2.,yvol-kPcbLength,0.),3,divpar);
1178       }
1179     }
1180     // cout << "Geometry for Station 5...... done" << endl;
1181
1182   }
1183 }
1184
1185
1186 //______________________________________________________________________________
1187 void AliMUONSlatGeometryBuilder::SetTransformations()
1188 {
1189 // Defines the transformations for the station2 chambers.
1190 // ---
1191
1192   Double_t zpos1= - AliMUONConstants::DefaultChamberZ(4);
1193   SetTranslation(4, TGeoTranslation(0., 0., zpos1));
1194
1195   zpos1= - AliMUONConstants::DefaultChamberZ(5);
1196   SetTranslation(5, TGeoTranslation(0., 0., zpos1));
1197
1198   zpos1 = - AliMUONConstants::DefaultChamberZ(6);
1199   SetTranslation(6, TGeoTranslation(0., 0., zpos1));
1200
1201   zpos1 = - AliMUONConstants::DefaultChamberZ(7);
1202   SetTranslation(7, TGeoTranslation(0., 0., zpos1));
1203
1204   zpos1 = - AliMUONConstants::DefaultChamberZ(8);
1205   SetTranslation(8, TGeoTranslation(0., 0., zpos1));
1206
1207   zpos1 = - AliMUONConstants::DefaultChamberZ(9);
1208   SetTranslation(9, TGeoTranslation(0., 0., zpos1));
1209
1210 }
1211
1212 //______________________________________________________________________________
1213 void AliMUONSlatGeometryBuilder::SetSensitiveVolumes()
1214 {
1215 // Defines the sensitive volumes for slat stations chambers.
1216 // ---
1217
1218   GetGeometry(4)->SetSensitiveVolume("S05G");
1219   GetGeometry(5)->SetSensitiveVolume("S06G");
1220   GetGeometry(6)->SetSensitiveVolume("S07G");
1221   GetGeometry(7)->SetSensitiveVolume("S08G");
1222   GetGeometry(8)->SetSensitiveVolume("S09G");
1223   GetGeometry(9)->SetSensitiveVolume("S10G");
1224 }
1225
1226 //______________________________________________________________________________
1227 Int_t  AliMUONSlatGeometryBuilder::ConvertSlatNum(Int_t numslat, Int_t quadnum, Int_t fspq) const
1228 {
1229 // On-line function establishing the correspondance between numslat (the slat number on a particular quadrant (numslat->0....4 for St3))
1230 // and slatnum (the slat number on the whole panel (slatnum->1...18 for St3)
1231   numslat += 1;
1232   if (quadnum==2 || quadnum==3)
1233     numslat += fspq;
1234   else
1235     numslat = fspq + 2-numslat;
1236   numslat -= 1;
1237
1238   if (quadnum==3 || quadnum==4) numslat += 2*fspq+1;
1239
1240   return numslat;
1241 }