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 /// \cond CLASSIMP
  50 ClassImp(AliMUONSlatGeometryBuilder)
  51 /// \endcond
  52
  53 //______________________________________________________________________________
  54 AliMUONSlatGeometryBuilder::AliMUONSlatGeometryBuilder(AliMUON* muon)
  55  : AliMUONVGeometryBuilder(4, 5, 6, 7, 8, 9),
  56    fMUON(muon)
  57 {
  58 // Standard constructor
  59
  60 }
  61
  62 //______________________________________________________________________________
  63 AliMUONSlatGeometryBuilder::AliMUONSlatGeometryBuilder()
  64  : AliMUONVGeometryBuilder(),
  65    fMUON(0)
  66 {
  67 // Default constructor
  68 }
  69
  70
  71 //______________________________________________________________________________
  72 AliMUONSlatGeometryBuilder::AliMUONSlatGeometryBuilder(const AliMUONSlatGeometryBuilder& rhs)
  73   : AliMUONVGeometryBuilder(rhs)
  74 {
  75   AliFatal("Copy constructor is not implemented.");
  76 }
  77
  78 //______________________________________________________________________________
  79 AliMUONSlatGeometryBuilder::~AliMUONSlatGeometryBuilder() {
  80 //
  81 }
  82
  83 //______________________________________________________________________________
  84 AliMUONSlatGeometryBuilder&
  85 AliMUONSlatGeometryBuilder::operator = (const AliMUONSlatGeometryBuilder& rhs)
  86 {
  87   // check assignement to self
  88   if (this == &rhs) return *this;
  89
  90   AliFatal("Assignment operator is not implemented.");
  91
  92   return *this;
  93 }
  94
  95 //
  96 // public methods
  97 //
  98
  99 //______________________________________________________________________________
 100 void AliMUONSlatGeometryBuilder::CreateGeometry()
 101 {
 102   // CreateGeometry is the method containing all the informations concerning Stations 345 geometry.
 103   // It includes description and placements of support panels and slats.
 104   // The code comes directly from what was written in AliMUONv1.cxx before, with modifications concerning
 105   // the use of Enveloppe method to place the Geant volumes.
 106   // Now, few changes would allow the creation of a Slat methode where slat could be described by few parameters,
 107   // and this builder would then be dedicated only to the
 108   // placements of the slats. Those modifications could shorten the Station 345 geometry by a non-negligeable factor...
 109
 110   Int_t *idtmed = fMUON->GetIdtmed()->GetArray()-1099;
 111
 112   Float_t angle;
 113   Float_t *dum=0;
 114
 115   // define the id of tracking media:
 116   Int_t idAir    = idtmed[1100]; // medium 1
 117   Int_t idGas    = idtmed[1108]; // medium 9 = Ar-CO2 gas (80%+20%)
 118   Int_t idCopper = idtmed[1110];
 119   Int_t idG10    = idtmed[1111];
 120   Int_t idCarbon = idtmed[1112];
 121   Int_t idRoha   = idtmed[1113];
 122   Int_t idNomex  = idtmed[1114]; // honey comb
 123   Int_t idNoryl  = idtmed[1115];
 124   Int_t idNomexB = idtmed[1116]; // bulk material
 125
 126   // sensitive area: 40*40 cm**2
 127   const Float_t kSensLength = 40.;
 128   const Float_t kSensHeight = 40.;
 129   const Float_t kSensWidth  = AliMUONConstants::Pitch()*2;// 0.5 cm, according to TDR fig 2.120
 130   const Int_t kSensMaterial = idGas;
 131   //     const Float_t kYoverlap   = 1.5;
 132
 133   // PCB dimensions in cm; width: 30 mum copper
 134   const Float_t kPcbLength  = kSensLength;
 135   const Float_t kPcbHeight  = 58.; // updated Ch. Finck
 136   const Float_t kPcbWidth   = 0.003;
 137   const Int_t kPcbMaterial  = idCopper;
 138
 139   // Insulating material: 220 mum G10 fiber  glued to pcb
 140   const Float_t kInsuLength = kPcbLength;
 141   const Float_t kInsuHeight = kPcbHeight;
 142   const Float_t kInsuWidth  = 0.022;  // updated Ch. Finck
 143   const Int_t kInsuMaterial = idG10;
 144
 145   // Carbon fiber panels: 200mum carbon/epoxy skin
 146   const Float_t kCarbonWidth  = 0.020;
 147   const Int_t kCarbonMaterial = idCarbon;
 148
 149   // Nomex (honey comb) between the two panel carbon skins
 150   const Float_t kNomexLength = kSensLength;
 151   const Float_t kNomexHeight = kSensHeight;
 152   const Float_t kNomexWidth  = 0.8; // updated Ch. Finck
 153   const Int_t kNomexMaterial = idNomex;
 154
 155   // Bulk Nomex under panel sandwich Ch. Finck
 156   const Float_t kNomexBWidth  = 0.025;
 157   const Int_t kNomexBMaterial = idNomexB;
 158
 159   // Panel sandwich 0.02 carbon*2 + 0.8 nomex
 160   const Float_t kPanelLength = kSensLength;
 161   const Float_t kPanelHeight = kSensHeight;
 162   const Float_t kPanelWidth  = 2 * kCarbonWidth + kNomexWidth;
 163
 164   // Frame along the rounded (spacers) slats
 165   const Float_t kRframeHeight = 2.00;
 166
 167   // spacer around the slat: 2 sticks along length,2 along height
 168   // H: the horizontal ones
 169   const Float_t kHframeLength = kPcbLength;
 170   const Float_t kHframeHeight = 1.95; // updated Ch. Finck
 171   const Float_t kHframeWidth  = kSensWidth;
 172   const Int_t kHframeMaterial = idNoryl;
 173
 174   // V: the vertical ones; vertical spacers
 175   const Float_t kVframeLength = 2.5;
 176   const Float_t kVframeHeight = kSensHeight + kHframeHeight;
 177   const Float_t kVframeWidth  = kSensWidth;
 178   const Int_t kVframeMaterial = idNoryl;
 179
 180   // B: the horizontal border filled with rohacell: ok Ch. Finck
 181   const Float_t kBframeLength = kHframeLength;
 182   const Float_t kBframeHeight = (kPcbHeight - kSensHeight)/2. - kHframeHeight;
 183   const Float_t kBframeWidth  = kHframeWidth;
 184   const Int_t kBframeMaterial = idRoha;
 185
 186   // NULOC: 30 mum copper + 200 mum vetronite (same radiation length as 14mum copper) for electronics
 187   const Float_t kNulocLength   = 2.5;
 188   const Float_t kNulocHeight   = kBframeHeight;
 189   const Float_t kNulocWidth    = 0.0030 + 0.0014; // equivalent copper width of vetronite;
 190   const Int_t   kNulocMaterial = idCopper;
 191
 192   // Slat parameters
 193   const Float_t kSlatHeight = kPcbHeight;
 194   const Float_t kSlatWidth  = kSensWidth + 2.*(kPcbWidth + kInsuWidth + kPanelWidth
 195                                                + kNomexBWidth); //replaced rohacell with Nomex Ch. Finck
 196   // const Int_t   kSlatMaterial = idAir;
 197   const Float_t kDslatLength  = -1.25; // position of the slat respect to the beam plane (half vertical spacer) Ch. Finck
 198   Float_t zSlat               = AliMUONConstants::DzSlat();// implemented Ch. Finck
 199   Float_t dzCh                = AliMUONConstants::DzCh();
 200
 201   Float_t spar[3];
 202   Int_t i, j;
 203   Int_t detElemId;
 204
 205   // the panel volume contains the nomex
 206   Float_t panelpar[3] = { kPanelLength/2., kPanelHeight/2., kPanelWidth/2. };
 207   Float_t nomexpar[3] = { kNomexLength/2., kNomexHeight/2., kNomexWidth/2. };
 208   Float_t twidth =  kPanelWidth +  kNomexBWidth;
 209   Float_t nomexbpar[3] = {kNomexLength/2., kNomexHeight/2.,twidth/2. };// bulk nomex
 210
 211   // insulating material contains PCB-> gas
 212   twidth = 2*(kInsuWidth + kPcbWidth) + kSensWidth ;
 213   Float_t insupar[3] = {kInsuLength/2., kInsuHeight/2., twidth/2. };
 214   twidth -= 2 * kInsuWidth;
 215   Float_t pcbpar[3]  = {kPcbLength/2., kPcbHeight/2., twidth/2. };
 216   Float_t senspar[3] = {kSensLength/2., kSensHeight/2., kSensWidth/2. };
 217   Float_t theight    = 2 * kHframeHeight + kSensHeight;
 218   Float_t hFramepar[3] = {kHframeLength/2., theight/2., kHframeWidth/2.};
 219   Float_t bFramepar[3] = {kBframeLength/2., kBframeHeight/2., kBframeWidth/2.};
 220   Float_t vFramepar[3] = {kVframeLength/2., kVframeHeight/2., kVframeWidth/2.};
 221   Float_t nulocpar[3]  = {kNulocLength/2.,  kNulocHeight/2.,  kNulocWidth/2.};
 222
 223   Float_t xx;
 224   Float_t xxmax = (kBframeLength - kNulocLength)/2.;
 225   Int_t index=0;
 226
 227   AliMUONChamber *iChamber, *iChamber1, *iChamber2;
 228
 229   Int_t* fStations = new Int_t[5];
 230   for (Int_t i=0; i<5; i++) fStations[i] = 1;
 231   fStations[2] = 1;
 232
 233   if (fStations[2])
 234     {
 235       //********************************************************************
 236       //                            Station 3                             **
 237       //********************************************************************
 238       // indices 1 and 2 for first and second chambers in the station
 239       // iChamber (first chamber) kept for other quanties than Z,
 240       // assumed to be the same in both chambers
 241
 242       iChamber = &fMUON->Chamber(4);
 243       iChamber1 = iChamber;
 244       iChamber2 = &fMUON->Chamber(5);
 245
 246       //GetGeometry(4)->SetDebug(kTRUE);
 247       //GetGeometry(5)->SetDebug(kTRUE);
 248
 249       if (!gAlice->GetModule("DIPO")) {
 250         // Mother volume for each chamber in st3 are only defined if Dipole volue is there.
 251         // Outer excess and inner recess for mother volume radius
 252         // with respect to ROuter and RInner
 253         Float_t dMotherInner = AliMUONConstants::Rmin(2)-kRframeHeight;
 254         Float_t dMotherOutner= AliMUONConstants::Rmax(2)+kVframeLength + 37.0;
 255         // Additional 37 cm gap is needed to wrap the corners of the slats sin Rmax represent the maximum active radius of the chamber with 2pi phi acceptance
 256         Float_t tpar[3];
 257         Double_t dstation =  ( (-AliMUONConstants::DefaultChamberZ(5)) -
 258                                (-AliMUONConstants::DefaultChamberZ(4)) ) /2.1;
 259         tpar[0] = dMotherInner;
 260         tpar[1] = dMotherOutner;
 261         tpar[2] = dstation;
 262         gMC->Gsvolu("CH05", "TUBE", idAir, tpar, 3);
 263         gMC->Gsvolu("CH06", "TUBE", idAir, tpar, 3);
 264       }
 265       // volumes for slat geometry (xx=5,..,10 chamber id):
 266       // Sxx0 Sxx1 Sxx2 Sxx3  -->   Slat Mother volumes
 267       // SxxG                          -->   Sensitive volume (gas)
 268       // SxxP                          -->   PCB (copper)
 269       // SxxI                          -->   Insulator (G10)
 270       // SxxC                          -->   Carbon panel
 271       // SxxN                          -->   Nomex comb
 272       // SxxX                          -->   Nomex bulk
 273       // SxxH, SxxV                    -->   Horizontal and Vertical frames (Noryl)
 274       // SB5x                          -->   Volumes for the 35 cm long PCB
 275       // slat dimensions: slat is a MOTHER volume!!! made of air
 276
 277       // only for chamber 5: slat 1 has a PCB shorter by 5cm!
 278
 279       Float_t tlength = 35.;
 280       Float_t panelpar2[3]  = { tlength/2., panelpar[1],  panelpar[2]};
 281       Float_t nomexpar2[3]  = { tlength/2., nomexpar[1],  nomexpar[2]};
 282       Float_t nomexbpar2[3] = { tlength/2., nomexbpar[1],  nomexbpar[2]};
 283       Float_t insupar2[3]   = { tlength/2., insupar[1],   insupar[2]};
 284       Float_t pcbpar2[3]    = { tlength/2., pcbpar[1],    pcbpar[2]};
 285       Float_t senspar2[3]   = { tlength/2., senspar[1],   senspar[2]};
 286       Float_t hFramepar2[3] = { tlength/2., hFramepar[1], hFramepar[2]};
 287       Float_t bFramepar2[3] = { tlength/2., bFramepar[1], bFramepar[2]};
 288       Float_t *dum=0;
 289       Float_t pcbDLength3   = (kPcbLength - tlength);
 290
 291       const Int_t   kNslats3         = 5;  // number of slats per quadrant
 292       const Int_t   kNPCB3[kNslats3] = {4, 4, 4, 3, 2}; // n PCB per slat
 293       const Float_t kXpos3[kNslats3] = {0., 0., 0., 0., 0.};//{31., 0., 0., 0., 0.};
 294       const Float_t kYpos3[kNslats3] = {0, 37.8, 37.7, 37.3, 33.7};
 295       Float_t slatLength3[kNslats3];
 296
 297       // create and position the slat (mother) volumes
 298
 299       char idSlatCh5[5];
 300       char idSlatCh6[5];
 301       Float_t xSlat3;
 302       Float_t ySlat3 = 0;
 303       Float_t angle = 0.;
 304       Float_t spar2[3];
 305       for (i = 0; i < kNslats3; i++){
 306
 307         slatLength3[i] = kPcbLength * kNPCB3[i] + 2.* kVframeLength;
 308         xSlat3 = slatLength3[i]/2. +  kDslatLength + kXpos3[i];
 309         ySlat3 += kYpos3[i];
 310
 311         spar[0] = slatLength3[i]/2.;
 312         spar[1] = kSlatHeight/2.;
 313         spar[2] = kSlatWidth/2.;
 314         // take away 5 cm from the first slat in chamber 5
 315         if (i == 0 || i == 1 || i == 2) { // 1 pcb is shortened by 5cm
 316           spar2[0] = spar[0] - pcbDLength3/2.;
 317         } else {
 318           spar2[0] = spar[0];
 319         }
 320         spar2[1] = spar[1];
 321         spar2[2] = spar[2];
 322         Float_t dzCh3 = dzCh;
 323         Float_t zSlat3 = (i%2 ==0)? -zSlat : zSlat; // seems not that zSlat3 = zSlat4 & 5 refering to plan PQ7EN345-6 ?
 324
 325         sprintf(idSlatCh5,"LA%d",i+kNslats3-1);
 326         //gMC->Gsvolu(idSlatCh5,"BOX",kSlatMaterial,spar2,3);
 327         detElemId = 509 - (i + kNslats3-1-4);
 328         GetEnvelopes(4)->AddEnvelope(idSlatCh5, detElemId, true, TGeoTranslation(xSlat3, ySlat3, -zSlat3 + dzCh3),
 329                                      TGeoRotation("rot1",90,angle,90,90+angle,0,0) );
 330
 331         sprintf(idSlatCh5,"LA%d",3*kNslats3-2+i);
 332         //gMC->Gsvolu(idSlatCh5,"BOX",kSlatMaterial,spar2,3);
 333         detElemId = 500 + (i + kNslats3-1-4);
 334         GetEnvelopes(4)->AddEnvelope(idSlatCh5, detElemId, true, TGeoTranslation(-xSlat3, ySlat3, zSlat3 - dzCh3),
 335                                      TGeoRotation("rot2",90,180+angle,90,90+angle,180,0) );
 336
 337         if (i > 0) {
 338           sprintf(idSlatCh5,"LA%d",kNslats3-1-i);
 339           // gMC->Gsvolu(idSlatCh5,"BOX",kSlatMaterial,spar2,3);
 340           detElemId = 509 + (i + kNslats3-1-4);
 341           GetEnvelopes(4)->AddEnvelope(idSlatCh5, detElemId, true, TGeoTranslation(xSlat3, -ySlat3, -zSlat3 + dzCh3),
 342                                        TGeoRotation("rot3",90,angle,90,270+angle,180,0) );
 343
 344           sprintf(idSlatCh5,"LA%d",3*kNslats3-2-i);
 345           // gMC->Gsvolu(idSlatCh5,"BOX",kSlatMaterial,spar2,3);
 346           detElemId = 518 - (i + kNslats3-1-4);
 347           GetEnvelopes(4)->AddEnvelope(idSlatCh5, detElemId, true, TGeoTranslation(-xSlat3, -ySlat3, zSlat3 - dzCh3),
 348                                        TGeoRotation("rot4",90,180+angle,90,270+angle,0,0) );
 349         }
 350
 351         sprintf(idSlatCh6,"LB%d",kNslats3-1+i);
 352         // gMC->Gsvolu(idSlatCh6,"BOX",kSlatMaterial,spar,3);
 353         detElemId = 609 - (i  + kNslats3-1-4);
 354         GetEnvelopes(5)->AddEnvelope(idSlatCh6, detElemId, true, TGeoTranslation(xSlat3, ySlat3, -zSlat3 + dzCh3),
 355                                      TGeoRotation("rot5",90,angle,90,90+angle,0,0) );
 356         sprintf(idSlatCh6,"LB%d",3*kNslats3-2+i);
 357         // gMC->Gsvolu(idSlatCh6,"BOX",kSlatMaterial,spar,3);
 358         detElemId = 600 + (i + kNslats3-1-4);
 359         GetEnvelopes(5)->AddEnvelope(idSlatCh6, detElemId, true, TGeoTranslation(-xSlat3, ySlat3, zSlat3 - dzCh3),
 360                                      TGeoRotation("rot6",90,180+angle,90,90+angle,180,0) );
 361
 362         if (i > 0) {
 363           sprintf(idSlatCh6,"LB%d",kNslats3-1-i);
 364           //gMC->Gsvolu(idSlatCh6,"BOX",kSlatMaterial,spar,3);
 365           detElemId = 609 + (i + kNslats3-1-4);
 366           GetEnvelopes(5)->AddEnvelope(idSlatCh6, detElemId, true, TGeoTranslation(xSlat3, -ySlat3, -zSlat3 + dzCh3),
 367                                        TGeoRotation("rot7",90,angle,90,270+angle,180,0) );
 368
 369           sprintf(idSlatCh6,"LB%d",3*kNslats3-2-i);
 370           //gMC->Gsvolu(idSlatCh6,"BOX",kSlatMaterial,spar,3);
 371           detElemId = 618 - (i + kNslats3-1-4);
 372           GetEnvelopes(5)->AddEnvelope(idSlatCh6, detElemId, true, TGeoTranslation(-xSlat3, -ySlat3, zSlat3 - dzCh3),
 373                                        TGeoRotation("rot8",90,180+angle,90,270+angle,0,0) );
 374         }
 375       }
 376
 377       // create the panel volume
 378
 379       gMC->Gsvolu("S05C","BOX",kCarbonMaterial,panelpar,3);
 380       gMC->Gsvolu("SB5C","BOX",kCarbonMaterial,panelpar2,3);
 381       gMC->Gsvolu("S06C","BOX",kCarbonMaterial,panelpar,3);
 382
 383       // create the nomex volume (honey comb)
 384
 385       gMC->Gsvolu("S05N","BOX",kNomexMaterial,nomexpar,3);
 386       gMC->Gsvolu("SB5N","BOX",kNomexMaterial,nomexpar2,3);
 387       gMC->Gsvolu("S06N","BOX",kNomexMaterial,nomexpar,3);
 388
 389       // create the nomex volume (bulk)
 390
 391       gMC->Gsvolu("S05X","BOX",kNomexBMaterial,nomexbpar,3);
 392       gMC->Gsvolu("SB5X","BOX",kNomexBMaterial,nomexbpar2,3);
 393       gMC->Gsvolu("S06X","BOX",kNomexBMaterial,nomexbpar,3);
 394
 395       // create the insulating material volume
 396
 397       gMC->Gsvolu("S05I","BOX",kInsuMaterial,insupar,3);
 398       gMC->Gsvolu("SB5I","BOX",kInsuMaterial,insupar2,3);
 399       gMC->Gsvolu("S06I","BOX",kInsuMaterial,insupar,3);
 400
 401       // create the PCB volume
 402
 403       gMC->Gsvolu("S05P","BOX",kPcbMaterial,pcbpar,3);
 404       gMC->Gsvolu("SB5P","BOX",kPcbMaterial,pcbpar2,3);
 405       gMC->Gsvolu("S06P","BOX",kPcbMaterial,pcbpar,3);
 406
 407       // create the sensitive volumes,
 408
 409       gMC->Gsvolu("S05G","BOX",kSensMaterial,dum,0);
 410       gMC->Gsvolu("S06G","BOX",kSensMaterial,dum,0);
 411
 412       // create the vertical frame volume
 413
 414       gMC->Gsvolu("S05V","BOX",kVframeMaterial,vFramepar,3);
 415       gMC->Gsvolu("S06V","BOX",kVframeMaterial,vFramepar,3);
 416
 417       // create the horizontal frame volume
 418
 419       gMC->Gsvolu("S05H","BOX",kHframeMaterial,hFramepar,3);
 420       gMC->Gsvolu("SB5H","BOX",kHframeMaterial,hFramepar2,3);
 421       gMC->Gsvolu("S06H","BOX",kHframeMaterial,hFramepar,3);
 422
 423       // create the horizontal border volume
 424
 425       gMC->Gsvolu("S05B","BOX",kBframeMaterial,bFramepar,3);
 426       gMC->Gsvolu("SB5B","BOX",kBframeMaterial,bFramepar2,3);
 427       gMC->Gsvolu("S06B","BOX",kBframeMaterial,bFramepar,3);
 428
 429       index = 0;
 430       for (i = 0; i<kNslats3; i++){
 431         for (Int_t quadrant = 1; quadrant <= 4; quadrant++) {
 432
 433           if (i == 0 && quadrant == 2) continue;
 434           if (i == 0 && quadrant == 4) continue;
 435
 436           sprintf(idSlatCh5,"LA%d",ConvertSlatNum(i,quadrant,kNslats3-1));
 437           sprintf(idSlatCh6,"LB%d",ConvertSlatNum(i,quadrant,kNslats3-1));
 438           Float_t xvFrame  = (slatLength3[i] - kVframeLength)/2.;
 439           Float_t xvFrame2  = xvFrame;
 440
 441           if (i == 0 || i == 1 || i == 2) xvFrame2 -= pcbDLength3/2.;
 442
 443           // position the vertical frames
 444           if ( i > 2) {
 445             GetEnvelopes(4)->AddEnvelopeConstituent("S05V", idSlatCh5,
 446                                                     (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 447             GetEnvelopes(4)->AddEnvelopeConstituent("S05V", idSlatCh5,
 448                                                     (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 449             GetEnvelopes(5)->AddEnvelopeConstituent("S06V", idSlatCh6,
 450                                                     (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 451             GetEnvelopes(5)->AddEnvelopeConstituent("S06V", idSlatCh6,
 452                                                     (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 453           }
 454
 455           if (i == 2) {
 456             GetEnvelopes(4)->AddEnvelopeConstituent("S05V", idSlatCh5,
 457                                                     (2*i-1)*10+quadrant,TGeoTranslation(xvFrame2,0.,0.));
 458             GetEnvelopes(4)->AddEnvelopeConstituent("S05V", idSlatCh5,
 459                                                     (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 460             GetEnvelopes(5)->AddEnvelopeConstituent("S06V", idSlatCh6,
 461                                                     (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 462             GetEnvelopes(5)->AddEnvelopeConstituent("S06V", idSlatCh6,
 463                                                     (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 464           }
 465
 466           if (i == 0 || i == 1) { // no rounded spacer for the moment (Ch. Finck)
 467             GetEnvelopes(4)->AddEnvelopeConstituent("S05V", idSlatCh5,
 468                                                     (2*i-1)*10+quadrant,TGeoTranslation(xvFrame2,0.,0.));
 469             GetEnvelopes(5)->AddEnvelopeConstituent("S06V", idSlatCh6,
 470                                                     (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 471           }
 472
 473           // position the panels and the insulating material
 474           for (j = 0; j < kNPCB3[i]; j++){
 475             if (i == 1 && j == 0) continue;
 476             if (i == 0 && j == 0) continue;
 477             index++;
 478             Float_t xx = kSensLength * (-kNPCB3[i]/2. + j + 0.5);
 479             Float_t xx2 = xx - pcbDLength3/2.;
 480
 481             Float_t zPanel = spar[2] - nomexbpar[2];
 482
 483             if ( (i == 0 || i == 1 || i == 2) && j == kNPCB3[i]-1) { // 1 pcb is shortened by 5cm
 484               GetEnvelopes(4)->AddEnvelopeConstituent("SB5X", idSlatCh5, 2*index-1,TGeoTranslation(xx2,0.,zPanel));
 485               GetEnvelopes(4)->AddEnvelopeConstituent("SB5X", idSlatCh5, 2*index,TGeoTranslation(xx2,0.,-zPanel));
 486               GetEnvelopes(4)->AddEnvelopeConstituent("SB5I", idSlatCh5, index,TGeoTranslation(xx2,0.,0.));
 487             } else {
 488               GetEnvelopes(4)->AddEnvelopeConstituent("S05X", idSlatCh5, 2*index-1,TGeoTranslation(xx,0.,zPanel));
 489               GetEnvelopes(4)->AddEnvelopeConstituent("S05X", idSlatCh5, 2*index,TGeoTranslation(xx,0.,-zPanel));
 490               GetEnvelopes(4)->AddEnvelopeConstituent("S05I", idSlatCh5, index,TGeoTranslation(xx,0.,0.));
 491             }
 492             GetEnvelopes(5)->AddEnvelopeConstituent("S06X", idSlatCh6, 2*index-1,TGeoTranslation(xx,0.,zPanel));
 493             GetEnvelopes(5)->AddEnvelopeConstituent("S06X", idSlatCh6, 2*index,TGeoTranslation(xx,0.,-zPanel));
 494             GetEnvelopes(5)->AddEnvelopeConstituent("S06I", idSlatCh6, index,TGeoTranslation(xx,0.,0.));
 495
 496           }
 497         }
 498       }
 499
 500       // position the nomex volume inside the panel volume
 501       gMC->Gspos("S05N",1,"S05C",0.,0.,0.,0,"ONLY");
 502       gMC->Gspos("SB5N",1,"SB5C",0.,0.,0.,0,"ONLY");
 503       gMC->Gspos("S06N",1,"S06C",0.,0.,0.,0,"ONLY");
 504
 505       // position panel volume inside the bulk nomex material volume
 506       gMC->Gspos("S05C",1,"S05X",0.,0.,kNomexBWidth/2.,0,"ONLY");
 507       gMC->Gspos("SB5C",1,"SB5X",0.,0.,kNomexBWidth/2.,0,"ONLY");
 508       gMC->Gspos("S06C",1,"S06X",0.,0.,kNomexBWidth/2.,0,"ONLY");
 509
 510       // position the PCB volume inside the insulating material volume
 511       gMC->Gspos("S05P",1,"S05I",0.,0.,0.,0,"ONLY");
 512       gMC->Gspos("SB5P",1,"SB5I",0.,0.,0.,0,"ONLY");
 513       gMC->Gspos("S06P",1,"S06I",0.,0.,0.,0,"ONLY");
 514
 515       // position the horizontal frame volume inside the PCB volume
 516       gMC->Gspos("S05H",1,"S05P",0.,0.,0.,0,"ONLY");
 517       gMC->Gspos("SB5H",1,"SB5P",0.,0.,0.,0,"ONLY");
 518       gMC->Gspos("S06H",1,"S06P",0.,0.,0.,0,"ONLY");
 519
 520       // position the sensitive volume inside the horizontal frame volume
 521       gMC->Gsposp("S05G",1,"S05H",0.,0.,0.,0,"ONLY",senspar,3);
 522       gMC->Gsposp("S05G",1,"SB5H",0.,0.,0.,0,"ONLY",senspar2,3);
 523       gMC->Gsposp("S06G",1,"S06H",0.,0.,0.,0,"ONLY",senspar,3);
 524
 525
 526       // position the border volumes inside the PCB volume
 527       Float_t yborder = ( kPcbHeight - kBframeHeight ) / 2.;
 528       gMC->Gspos("S05B",1,"S05P",0., yborder,0.,0,"ONLY");
 529       gMC->Gspos("S05B",2,"S05P",0.,-yborder,0.,0,"ONLY");
 530       gMC->Gspos("SB5B",1,"SB5P",0., yborder,0.,0,"ONLY");
 531       gMC->Gspos("SB5B",2,"SB5P",0.,-yborder,0.,0,"ONLY");
 532
 533       gMC->Gspos("S06B",1,"S06P",0., yborder,0.,0,"ONLY");
 534       gMC->Gspos("S06B",2,"S06P",0.,-yborder,0.,0,"ONLY");
 535
 536       // create the NULOC volume and position it in the horizontal frame
 537       gMC->Gsvolu("S05E","BOX",kNulocMaterial,nulocpar,3);
 538       gMC->Gsvolu("S06E","BOX",kNulocMaterial,nulocpar,3);
 539       index = 0;
 540       Float_t xxmax2 = xxmax - pcbDLength3/2.;
 541       for (xx = -xxmax; xx <= xxmax; xx += 2*kNulocLength) {
 542         index++;
 543         gMC->Gspos("S05E",2*index-1,"S05B", xx, 0.,-kBframeWidth/2. + kNulocWidth/2, 0, "ONLY");
 544         gMC->Gspos("S05E",2*index  ,"S05B", xx, 0., kBframeWidth/2. - kNulocWidth/2, 0, "ONLY");
 545         gMC->Gspos("S06E",2*index-1,"S06B", xx, 0.,-kBframeWidth/2. + kNulocWidth/2, 0, "ONLY");
 546         gMC->Gspos("S06E",2*index  ,"S06B", xx, 0., kBframeWidth/2.-  kNulocWidth/2, 0, "ONLY");
 547         if (xx > -xxmax2 && xx< xxmax2) {
 548           gMC->Gspos("S05E",2*index-1,"SB5B", xx, 0.,-kBframeWidth/2.+ kNulocWidth/2, 0, "ONLY");
 549           gMC->Gspos("S05E",2*index  ,"SB5B", xx, 0., kBframeWidth/2.- kNulocWidth/2, 0, "ONLY");
 550         }
 551       }
 552
 553       // position the volumes approximating the circular section of the pipe
 554       Float_t epsilon = 0.001;
 555       Int_t ndiv = 6;
 556       Int_t imax = 1;
 557       Double_t divpar[3];
 558       Double_t dydiv = kSensHeight/ndiv;
 559       Double_t ydiv  = (kSensHeight - dydiv)/2.;
 560       Double_t rmin  = AliMUONConstants::Rmin(2);// Same radius for both chamber in St3
 561       Double_t xdiv  = 0.;
 562       Float_t xvol;
 563       Float_t yvol;
 564
 565       for (Int_t idiv = 0; idiv < ndiv; idiv++){
 566         ydiv += dydiv;
 567         xdiv = 0.;
 568         if (ydiv < rmin) xdiv = rmin * TMath::Sin( TMath::ACos((ydiv-dydiv/2.)/rmin) );
 569         divpar[0] = (kPcbLength - xdiv)/2.;
 570         divpar[1] = dydiv/2. - epsilon;
 571         divpar[2] = kSensWidth/2.;
 572         xvol = (kPcbLength + xdiv)/2.;
 573         yvol = ydiv;
 574
 575         // Volumes close to the beam pipe for slat i=1 so 4 slats per chamber
 576         for (Int_t quadrant = 1; quadrant <= 4; quadrant++) {
 577           sprintf(idSlatCh5,"LA%d",ConvertSlatNum(1,quadrant,kNslats3-1));
 578           sprintf(idSlatCh6,"LB%d",ConvertSlatNum(1,quadrant,kNslats3-1));
 579
 580           GetEnvelopes(4)->AddEnvelopeConstituentParam("S05G", idSlatCh5, quadrant*100+imax+4*idiv+1,
 581                                                        TGeoTranslation(xvol-(kPcbLength * kNPCB3[1]/2.),yvol-kPcbLength,0.),3,divpar);
 582
 583           GetEnvelopes(5)->AddEnvelopeConstituentParam("S06G", idSlatCh6,  quadrant*100+imax+4*idiv+1,
 584                                                        TGeoTranslation(xvol-(kPcbLength * kNPCB3[1]/2.),yvol-kPcbLength,0.),3,divpar);
 585         }
 586       }
 587
 588       // Volumes close to the beam pipe for slat i=0 so 2 slats per chamber (central slat for station 3)
 589       //      Gines Martinez, Subatech sep 04
 590       // 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
 591       // Accordingly to plan PQ-LAT-SR1 of CEA-DSM-DAPNIA-SIS/BE ph HARDY 8-Oct-2002
 592       // Rmin = 31.5 cm
 593       rmin = AliMUONConstants::Rmin(2); // Same radius for both chamber in St3
 594       ndiv  = 9;
 595       dydiv = kSensHeight/ndiv;           // Vertical size of the box volume approximating the rounded PCB
 596       ydiv  = -kSensHeight/2 + dydiv/2.;   // Initializing vertical position of the volume from bottom
 597       xdiv  = 0.;                         // Initializing horizontal position of the box volumes
 598
 599       for (Int_t idiv = 0; idiv < ndiv; idiv++){
 600         xdiv = TMath::Abs( rmin * TMath::Sin( TMath::ACos(ydiv/rmin) ) );
 601         divpar[0] = (kPcbLength - xdiv)/2.; // Dimension of the box volume
 602         divpar[1] = dydiv/2. - epsilon;
 603         divpar[2] = kSensWidth/2.;
 604         xvol = (kPcbLength + xdiv)/2.; //2D traslition for positionning of box volume
 605         yvol =  ydiv;
 606         Int_t side;
 607         for (side = 1; side <= 2; side++) {
 608           sprintf(idSlatCh5,"LA%d",4);
 609           sprintf(idSlatCh6,"LB%d",4);
 610           if(side == 2) {
 611             sprintf(idSlatCh5,"LA%d",13);
 612             sprintf(idSlatCh6,"LB%d",13);
 613           }
 614           GetEnvelopes(4)->AddEnvelopeConstituentParam("S05G", idSlatCh5,500+side*100+imax+4*idiv+1,
 615                                                        TGeoTranslation(xvol-(kPcbLength * kNPCB3[0]/2.),yvol,0.),3,divpar);
 616
 617           GetEnvelopes(5)->AddEnvelopeConstituentParam("S06G", idSlatCh6,500+side*100+imax+4*idiv+1,
 618                                                        TGeoTranslation(xvol-(kPcbLength * kNPCB3[0]/2.),yvol,0.),3,divpar);
 619         }
 620         ydiv += dydiv; // Going from bottom to top
 621       }
 622       // cout << "Geometry for Station 3...... done" << endl;
 623     }
 624
 625   if (fStations[3]) {
 626
 627
 628     // //********************************************************************
 629     // //                            Station 4                             **
 630     // //********************************************************************
 631     //      // indices 1 and 2 for first and second chambers in the station
 632     //      // iChamber (first chamber) kept for other quanties than Z,
 633     //      // assumed to be the same in both chambers
 634     //      corrected geometry (JP. Cussonneau, Ch. Finck)
 635
 636     iChamber = &fMUON->Chamber(6);
 637     iChamber1 = iChamber;
 638     iChamber2 = &fMUON->Chamber(7);
 639
 640     const Int_t   kNslats4          = 7;  // number of slats per quadrant
 641     const Int_t   kNPCB4[kNslats4]  = {5, 6, 5, 5, 4, 3, 2}; // n PCB per slat
 642     const Float_t kXpos4[kNslats4]  = {38.2, 0., 0., 0., 0., 0., 0.};
 643     const Float_t kYpos41[kNslats4] = {0., 38.2, 34.40, 36.60, 29.3, 37.0, 28.6};
 644     const Float_t kYpos42[kNslats4] = {0., 38.2, 37.85, 37.55, 29.4, 37.0, 28.6};
 645
 646     Float_t slatLength4[kNslats4];
 647
 648
 649     // Mother volume for each chamber
 650     // Outer excess and inner recess for mother volume radius
 651     // with respect to ROuter and RInner
 652     Float_t dMotherInner =  AliMUONConstants::Rmin(3)-kRframeHeight;
 653     // Additional 40 cm gap is needed to wrap the corners of the slats since Rmax represent the maximum active radius of the chamber with 2pi phi acceptance
 654     Float_t dMotherOutner= AliMUONConstants::Rmax(3)+kVframeLength + 40.0;
 655     Float_t tpar[3];
 656     Double_t dstation =  ( (-AliMUONConstants::DefaultChamberZ(7)) -
 657                            (-AliMUONConstants::DefaultChamberZ(6)) ) /2.2;
 658     tpar[0] = dMotherInner;
 659     tpar[1] = dMotherOutner;
 660     tpar[2] = dstation;
 661     gMC->Gsvolu("CH07", "TUBE", idAir, tpar, 3);
 662     gMC->Gsvolu("CH08", "TUBE", idAir, tpar, 3);
 663
 664     // create and position the slat (mother) volumes
 665
 666     char idSlatCh7[5];
 667     char idSlatCh8[5];
 668     Float_t xSlat4;
 669     Float_t ySlat41 = 0;
 670     Float_t ySlat42 = 0;
 671
 672     angle = 0.;
 673
 674     for (i = 0; i<kNslats4; i++){
 675       slatLength4[i] = kPcbLength * kNPCB4[i] + 2. * kVframeLength;
 676       xSlat4 = slatLength4[i]/2. + kDslatLength + kXpos4[i];
 677       ySlat41 += kYpos41[i];
 678       ySlat42 += kYpos42[i];
 679
 680       spar[0] = slatLength4[i]/2.;
 681       spar[1] = kSlatHeight/2.;
 682       spar[2] = kSlatWidth/2.;
 683       Float_t dzCh4 = dzCh;
 684       Float_t zSlat4 = (i%2 ==0)? -zSlat : zSlat;
 685
 686       sprintf(idSlatCh7,"LC%d",kNslats4-1+i);
 687       //gMC->Gsvolu(idSlatCh7,"BOX",kSlatMaterial,spar,3);
 688       detElemId = 713 - (i + kNslats4-1-6);
 689       GetEnvelopes(6)->AddEnvelope(idSlatCh7, detElemId, true, TGeoTranslation(xSlat4, ySlat41, -zSlat4 + dzCh4),
 690                                    TGeoRotation("rot1",90,angle,90,90+angle,0,0) );
 691
 692       sprintf(idSlatCh7,"LC%d",3*kNslats4-2+i);
 693       //gMC->Gsvolu(idSlatCh7,"BOX",kSlatMaterial,spar,3);
 694       detElemId = 700 + (i + kNslats4-1-6);
 695       GetEnvelopes(6)->AddEnvelope(idSlatCh7, detElemId, true, TGeoTranslation(-xSlat4, ySlat41, zSlat4 - dzCh4),
 696                                    TGeoRotation("rot2",90,180+angle,90,90+angle,180,0) );
 697
 698       if (i > 0) {
 699         sprintf(idSlatCh7,"LC%d",kNslats4-1-i);
 700         //gMC->Gsvolu(idSlatCh7,"BOX",kSlatMaterial,spar,3);
 701         detElemId = 713 + (i + kNslats4-1-6);
 702         GetEnvelopes(6)->AddEnvelope(idSlatCh7, detElemId, true, TGeoTranslation(xSlat4, -ySlat41, -zSlat4 + dzCh4),
 703                                      TGeoRotation("rot3",90,angle,90,270+angle,180,0) );
 704
 705         sprintf(idSlatCh7,"LC%d",3*kNslats4-2-i);
 706         detElemId = 726 - (i + kNslats4-1-6);
 707         //gMC->Gsvolu(idSlatCh7,"BOX",kSlatMaterial,spar,3);
 708         GetEnvelopes(6)->AddEnvelope(idSlatCh7, detElemId, true,
 709                                      TGeoTranslation(-xSlat4, -ySlat41, zSlat4 - dzCh4),
 710                                      TGeoRotation("rot4",90,180+angle,90,270+angle,0,0) );
 711       }
 712
 713       sprintf(idSlatCh8,"LD%d",kNslats4-1+i);
 714       //gMC->Gsvolu(idSlatCh8,"BOX",kSlatMaterial,spar,3);
 715       detElemId = 813 - (i + kNslats4-1-6);
 716       GetEnvelopes(7)->AddEnvelope(idSlatCh8, detElemId, true, TGeoTranslation(xSlat4, ySlat42, -zSlat4 + dzCh4),
 717                                    TGeoRotation("rot5",90,angle,90,90+angle,0,0) );
 718
 719       sprintf(idSlatCh8,"LD%d",3*kNslats4-2+i);
 720       detElemId = 800 + (i + kNslats4-1-6);
 721       //gMC->Gsvolu(idSlatCh8,"BOX",kSlatMaterial,spar,3);
 722       GetEnvelopes(7)->AddEnvelope(idSlatCh8, detElemId, true, TGeoTranslation(-xSlat4, ySlat42, zSlat4 - dzCh4),
 723                                    TGeoRotation("rot6",90,180+angle,90,90+angle,180,0) );
 724       if (i > 0) {
 725         sprintf(idSlatCh8,"LD%d",kNslats4-1-i);
 726         detElemId = 813 + (i + kNslats4-1-6);
 727         //gMC->Gsvolu(idSlatCh8,"BOX",kSlatMaterial,spar,3);
 728         GetEnvelopes(7)->AddEnvelope(idSlatCh8, detElemId, true, TGeoTranslation(xSlat4, -ySlat42, -zSlat4 + dzCh4),
 729                                      TGeoRotation("rot7",90,angle,90,270+angle,180,0) );
 730         sprintf(idSlatCh8,"LD%d",3*kNslats4-2-i);
 731         detElemId = 826 - (i + kNslats4-1-6);
 732         //gMC->Gsvolu(idSlatCh8,"BOX",kSlatMaterial,spar,3);
 733         GetEnvelopes(7)->AddEnvelope(idSlatCh8, detElemId, true, TGeoTranslation(-xSlat4, -ySlat42, zSlat4 - dzCh4),
 734                                      TGeoRotation("rot8",90,180+angle,90,270+angle,0,0) );
 735       }
 736     }
 737
 738     // create the panel volume
 739
 740     gMC->Gsvolu("S07C","BOX",kCarbonMaterial,panelpar,3);
 741     gMC->Gsvolu("S08C","BOX",kCarbonMaterial,panelpar,3);
 742
 743     // create the nomex volume
 744
 745     gMC->Gsvolu("S07N","BOX",kNomexMaterial,nomexpar,3);
 746     gMC->Gsvolu("S08N","BOX",kNomexMaterial,nomexpar,3);
 747
 748
 749     // create the nomex volume (bulk)
 750
 751     gMC->Gsvolu("S07X","BOX",kNomexBMaterial,nomexbpar,3);
 752     gMC->Gsvolu("S08X","BOX",kNomexBMaterial,nomexbpar,3);
 753
 754     // create the insulating material volume
 755
 756     gMC->Gsvolu("S07I","BOX",kInsuMaterial,insupar,3);
 757     gMC->Gsvolu("S08I","BOX",kInsuMaterial,insupar,3);
 758
 759     // create the PCB volume
 760
 761     gMC->Gsvolu("S07P","BOX",kPcbMaterial,pcbpar,3);
 762     gMC->Gsvolu("S08P","BOX",kPcbMaterial,pcbpar,3);
 763
 764     // create the sensitive volumes,
 765
 766     gMC->Gsvolu("S07G","BOX",kSensMaterial,dum,0);
 767     gMC->Gsvolu("S08G","BOX",kSensMaterial,dum,0);
 768
 769     // create the vertical frame volume
 770
 771     gMC->Gsvolu("S07V","BOX",kVframeMaterial,vFramepar,3);
 772     gMC->Gsvolu("S08V","BOX",kVframeMaterial,vFramepar,3);
 773
 774     // create the horizontal frame volume
 775
 776     gMC->Gsvolu("S07H","BOX",kHframeMaterial,hFramepar,3);
 777     gMC->Gsvolu("S08H","BOX",kHframeMaterial,hFramepar,3);
 778
 779     // create the horizontal border volume
 780
 781     gMC->Gsvolu("S07B","BOX",kBframeMaterial,bFramepar,3);
 782     gMC->Gsvolu("S08B","BOX",kBframeMaterial,bFramepar,3);
 783
 784     index = 0;
 785     for (i = 0; i < kNslats4; i++){
 786       for (Int_t quadrant = 1; quadrant <= 4; quadrant++) {
 787
 788         if (i == 0 && quadrant == 2) continue;
 789         if (i == 0 && quadrant == 4) continue;
 790
 791         sprintf(idSlatCh7,"LC%d",ConvertSlatNum(i,quadrant,kNslats4-1));
 792         sprintf(idSlatCh8,"LD%d",ConvertSlatNum(i,quadrant,kNslats4-1));
 793         Float_t xvFrame  = (slatLength4[i] - kVframeLength)/2.;
 794
 795         // position the vertical frames
 796         if (i != 1) {
 797           GetEnvelopes(6)->AddEnvelopeConstituent("S07V", idSlatCh7, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 798           GetEnvelopes(6)->AddEnvelopeConstituent("S07V", idSlatCh7, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 799           GetEnvelopes(7)->AddEnvelopeConstituent("S08V", idSlatCh8, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 800           GetEnvelopes(7)->AddEnvelopeConstituent("S08V", idSlatCh8, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 801         } else { // no rounded spacer yet
 802           GetEnvelopes(6)->AddEnvelopeConstituent("S07V", idSlatCh7, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 803           // GetEnvelopes(6)->AddEnvelopeConstituent("S07V", idSlatCh7, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 804           GetEnvelopes(7)->AddEnvelopeConstituent("S08V", idSlatCh8, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 805           // GetEnvelopes(7)->AddEnvelopeConstituent("S08V", idSlatCh8, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 806         }
 807         // position the panels and the insulating material
 808         for (j = 0; j < kNPCB4[i]; j++){
 809           if (i == 1 && j == 0) continue;
 810           index++;
 811           Float_t xx = kSensLength * (-kNPCB4[i]/2.+j+.5);
 812
 813           Float_t zPanel = spar[2] - nomexbpar[2];
 814           GetEnvelopes(6)->AddEnvelopeConstituent("S07X", idSlatCh7, 2*index-1,TGeoTranslation(xx,0.,zPanel));
 815           GetEnvelopes(6)->AddEnvelopeConstituent("S07X", idSlatCh7, 2*index,TGeoTranslation(xx,0.,-zPanel));
 816           GetEnvelopes(6)->AddEnvelopeConstituent("S07I", idSlatCh7, index,TGeoTranslation(xx,0.,0.));
 817           GetEnvelopes(7)->AddEnvelopeConstituent("S08X", idSlatCh8, 2*index-1,TGeoTranslation(xx,0.,zPanel));
 818           GetEnvelopes(7)->AddEnvelopeConstituent("S08X", idSlatCh8, 2*index,TGeoTranslation(xx,0.,-zPanel));
 819           GetEnvelopes(7)->AddEnvelopeConstituent("S08I", idSlatCh8, index,TGeoTranslation(xx,0.,0.));
 820         }
 821       }
 822     }
 823
 824     // position the nomex volume inside the panel volume
 825     gMC->Gspos("S07N",1,"S07C",0.,0.,0.,0,"ONLY");
 826     gMC->Gspos("S08N",1,"S08C",0.,0.,0.,0,"ONLY");
 827
 828     // position panel volume inside the bulk nomex material volume
 829     gMC->Gspos("S07C",1,"S07X",0.,0.,kNomexBWidth/2.,0,"ONLY");
 830     gMC->Gspos("S08C",1,"S08X",0.,0.,kNomexBWidth/2.,0,"ONLY");
 831
 832     // position the PCB volume inside the insulating material volume
 833     gMC->Gspos("S07P",1,"S07I",0.,0.,0.,0,"ONLY");
 834     gMC->Gspos("S08P",1,"S08I",0.,0.,0.,0,"ONLY");
 835
 836     // position the horizontal frame volume inside the PCB volume
 837     gMC->Gspos("S07H",1,"S07P",0.,0.,0.,0,"ONLY");
 838     gMC->Gspos("S08H",1,"S08P",0.,0.,0.,0,"ONLY");
 839
 840     // position the sensitive volume inside the horizontal frame volume
 841     gMC->Gsposp("S07G",1,"S07H",0.,0.,0.,0,"ONLY",senspar,3);
 842     gMC->Gsposp("S08G",1,"S08H",0.,0.,0.,0,"ONLY",senspar,3);
 843
 844     // position the border volumes inside the PCB volume
 845     Float_t yborder = ( kPcbHeight - kBframeHeight ) / 2.;
 846     gMC->Gspos("S07B",1,"S07P",0., yborder,0.,0,"ONLY");
 847     gMC->Gspos("S07B",2,"S07P",0.,-yborder,0.,0,"ONLY");
 848     gMC->Gspos("S08B",1,"S08P",0., yborder,0.,0,"ONLY");
 849     gMC->Gspos("S08B",2,"S08P",0.,-yborder,0.,0,"ONLY");
 850
 851     // create the NULOC volume and position it in the horizontal frame
 852
 853     gMC->Gsvolu("S07E","BOX",kNulocMaterial,nulocpar,3);
 854     gMC->Gsvolu("S08E","BOX",kNulocMaterial,nulocpar,3);
 855     index = 0;
 856     for (xx = -xxmax; xx <= xxmax; xx += 2*kNulocLength) {
 857       index++;
 858       gMC->Gspos("S07E",2*index-1,"S07B", xx, 0.,-kBframeWidth/2. + kNulocWidth/2, 0, "ONLY");
 859       gMC->Gspos("S07E",2*index  ,"S07B", xx, 0., kBframeWidth/2. - kNulocWidth/2, 0, "ONLY");
 860       gMC->Gspos("S08E",2*index-1,"S08B", xx, 0.,-kBframeWidth/2. + kNulocWidth/2, 0, "ONLY");
 861       gMC->Gspos("S08E",2*index  ,"S08B", xx, 0., kBframeWidth/2. - kNulocWidth/2, 0, "ONLY");
 862     }
 863
 864     // position the volumes approximating the circular section of the pipe
 865
 866     Float_t epsilon = 0.001;
 867     Int_t ndiv = 10;
 868     Int_t imax = 1;
 869     Double_t divpar[3];
 870     Double_t dydiv = kSensHeight/ndiv;
 871     Double_t ydiv  = (kSensHeight - dydiv)/2.;
 872     Float_t rmin   = AliMUONConstants::Rmin(3); // Same radius for both chamber of St4
 873     Float_t xdiv   = 0.;
 874     Float_t xvol;
 875     Float_t yvol;
 876
 877     for (Int_t idiv = 0; idiv < ndiv; idiv++){
 878       ydiv += dydiv;
 879       xdiv = 0.;
 880       if (ydiv < rmin) xdiv = rmin * TMath::Sin( TMath::ACos((ydiv-dydiv/2.)/rmin) );
 881       divpar[0] = (kPcbLength - xdiv)/2.;
 882       divpar[1] = dydiv/2. - epsilon;
 883       divpar[2] = kSensWidth/2.;
 884       xvol = (kPcbLength + xdiv)/2.;
 885       yvol = ydiv ;
 886
 887       for (Int_t quadrant = 1; quadrant <= 4; quadrant++) {
 888         sprintf(idSlatCh7,"LC%d",ConvertSlatNum(1,quadrant,kNslats4-1));
 889         sprintf(idSlatCh8,"LD%d",ConvertSlatNum(1,quadrant,kNslats4-1));
 890
 891         GetEnvelopes(6)->AddEnvelopeConstituentParam("S07G",idSlatCh7, quadrant*100+imax+4*idiv+1,
 892                                                      TGeoTranslation(xvol-kPcbLength * kNPCB4[1]/2.,yvol-kPcbLength,0.),3,divpar);
 893
 894         GetEnvelopes(7)->AddEnvelopeConstituentParam("S08G", idSlatCh8, quadrant*100+imax+4*idiv+1,
 895                                                      TGeoTranslation(xvol-kPcbLength * kNPCB4[1]/2.,yvol-kPcbLength,0.),3,divpar);
 896       }
 897     }
 898     // cout << "Geometry for Station 4...... done" << endl;
 899
 900   }
 901
 902   if (fStations[4]) {
 903
 904
 905     // //********************************************************************
 906     // //                            Station 5                             **
 907     // //********************************************************************
 908     //      // indices 1 and 2 for first and second chambers in the station
 909     //      // iChamber (first chamber) kept for other quanties than Z,
 910     //      // assumed to be the same in both chambers
 911     //      corrected geometry (JP. Cussonneau, Ch. Finck)
 912
 913     iChamber = &fMUON->Chamber(8);
 914     iChamber1 = iChamber;
 915     iChamber2 = &fMUON->Chamber(9);
 916
 917     const Int_t   kNslats5         = 7;  // number of slats per quadrant
 918     const Int_t   kNPCB5[kNslats5] = {5, 6, 6, 6, 5, 4, 3}; // n PCB per slat
 919     const Float_t kXpos5[kNslats5] = {38.2, 0., 0., 0., 0., 0., 0.};
 920     const Float_t kYpos5[kNslats5] = {0., 38.2, 37.9, 37.6, 37.3, 37.05, 36.75};
 921     Float_t slatLength5[kNslats5];
 922
 923     // Mother volume for each chamber
 924     // Outer excess and inner recess for mother volume radius
 925     // with respect to ROuter and RInner
 926     Float_t dMotherInner =  AliMUONConstants::Rmin(4)-kRframeHeight;
 927     // Additional 40 cm gap is needed to wrap the corners of the slats since Rmax represent the maximum active radius of the chamber with 2pi phi acceptance
 928     Float_t dMotherOutner= AliMUONConstants::Rmax(4)+kVframeLength + 40.0;
 929     Float_t tpar[3];
 930     Double_t dstation =  ( (-AliMUONConstants::DefaultChamberZ(9)) -
 931                            (-AliMUONConstants::DefaultChamberZ(8)) ) /2.3;
 932     tpar[0] = dMotherInner;
 933     tpar[1] = dMotherOutner;
 934     tpar[2] = dstation;
 935     gMC->Gsvolu("CH09", "TUBE", idAir, tpar, 3);
 936     gMC->Gsvolu("CH10", "TUBE", idAir, tpar, 3);
 937
 938     // create and position the slat (mother) volumes
 939
 940     char idSlatCh9[5];
 941     char idSlatCh10[5];
 942     Float_t xSlat5;
 943     Float_t ySlat5 = 0;
 944     angle = 0.;
 945
 946     for (i = 0; i < kNslats5; i++){
 947
 948       slatLength5[i] = kPcbLength * kNPCB5[i] + 2.* kVframeLength;
 949       xSlat5 = slatLength5[i]/2. + kDslatLength + kXpos5[i];
 950       ySlat5 += kYpos5[i];
 951
 952       spar[0] = slatLength5[i]/2.;
 953       spar[1] = kSlatHeight/2.;
 954       spar[2] = kSlatWidth/2.;
 955
 956       Float_t dzCh5  = dzCh;
 957       Float_t zSlat5 = (i%2 ==0)? -zSlat : zSlat;
 958
 959       sprintf(idSlatCh9,"LE%d",kNslats5-1+i);
 960       detElemId = 913 - (i + kNslats5-1-6);
 961       //gMC->Gsvolu(idSlatCh9,"BOX",kSlatMaterial,spar,3);
 962       GetEnvelopes(8)->AddEnvelope(idSlatCh9, detElemId, true, TGeoTranslation(xSlat5, ySlat5, -zSlat5 + dzCh5),
 963                                    TGeoRotation("rot1",90,angle,90,90+angle,0,0) );
 964
 965       sprintf(idSlatCh9,"LE%d",3*kNslats5-2+i);
 966       detElemId = 900 + (i + kNslats5-1-6);
 967       //gMC->Gsvolu(idSlatCh9,"BOX",kSlatMaterial,spar,3);
 968       GetEnvelopes(8)->AddEnvelope(idSlatCh9, detElemId, true, TGeoTranslation(-xSlat5, ySlat5, zSlat5 - dzCh5),
 969                                    TGeoRotation("rot2",90,180+angle,90,90+angle,180,0) );
 970
 971       if (i > 0) {
 972         sprintf(idSlatCh9,"LE%d",kNslats5-1-i);
 973         detElemId = 913 + (i + kNslats5-1-6);
 974         //gMC->Gsvolu(idSlatCh9,"BOX",kSlatMaterial,spar,3);
 975         GetEnvelopes(8)->AddEnvelope(idSlatCh9, detElemId, true, TGeoTranslation(xSlat5, -ySlat5, -zSlat5 + dzCh5),
 976                                      TGeoRotation("rot3",90,angle,90,270+angle,180,0) );
 977
 978         sprintf(idSlatCh9,"LE%d",3*kNslats5-2-i);
 979         detElemId = 926 - (i + kNslats5-1-6);
 980         //gMC->Gsvolu(idSlatCh9,"BOX",kSlatMaterial,spar,3);
 981         GetEnvelopes(8)->AddEnvelope(idSlatCh9, detElemId, true, TGeoTranslation(-xSlat5, -ySlat5, zSlat5 - dzCh5),
 982                                      TGeoRotation("rot4",90,180+angle,90,270+angle,0,0)  );
 983       }
 984
 985       sprintf(idSlatCh10,"LF%d",kNslats5-1+i);
 986       detElemId = 1013 - (i + kNslats5-1-6);
 987       //gMC->Gsvolu(idSlatCh10,"BOX",kSlatMaterial,spar,3);
 988       GetEnvelopes(9)->AddEnvelope(idSlatCh10, detElemId, true, TGeoTranslation(xSlat5, ySlat5, -zSlat5 + dzCh5),
 989                                    TGeoRotation("rot5",90,angle,90,90+angle,0,0) );
 990
 991       sprintf(idSlatCh10,"LF%d",3*kNslats5-2+i);
 992       detElemId = 1000 + (i + kNslats5-1-6);
 993       //gMC->Gsvolu(idSlatCh10,"BOX",kSlatMaterial,spar,3);
 994       GetEnvelopes(9)->AddEnvelope(idSlatCh10, detElemId, true, TGeoTranslation(-xSlat5, ySlat5, zSlat5 - dzCh5),
 995                                    TGeoRotation("rot6",90,180+angle,90,90+angle,180,0) );
 996
 997       if (i > 0) {
 998         sprintf(idSlatCh10,"LF%d",kNslats5-1-i);
 999         detElemId = 1013 + (i + kNslats5-1-6);
1000         //gMC->Gsvolu(idSlatCh10,"BOX",kSlatMaterial,spar,3);
1001         GetEnvelopes(9)->AddEnvelope(idSlatCh10, detElemId, true, TGeoTranslation(xSlat5, -ySlat5, -zSlat5 + dzCh5),
1002                                      TGeoRotation("rot7",90,angle,90,270+angle,180,0) );
1003         sprintf(idSlatCh10,"LF%d",3*kNslats5-2-i);
1004         detElemId = 1026 - (i + kNslats5-1-6);
1005         //gMC->Gsvolu(idSlatCh10,"BOX",kSlatMaterial,spar,3);
1006         GetEnvelopes(9)->AddEnvelope(idSlatCh10, detElemId, true, TGeoTranslation(-xSlat5, -ySlat5, zSlat5 - dzCh5),
1007                                      TGeoRotation("rot8",90,180+angle,90,270+angle,0,0) );
1008       }
1009     }
1010
1011     // create the panel volume
1012
1013     gMC->Gsvolu("S09C","BOX",kCarbonMaterial,panelpar,3);
1014     gMC->Gsvolu("S10C","BOX",kCarbonMaterial,panelpar,3);
1015
1016     // create the nomex volume
1017
1018     gMC->Gsvolu("S09N","BOX",kNomexMaterial,nomexpar,3);
1019     gMC->Gsvolu("S10N","BOX",kNomexMaterial,nomexpar,3);
1020
1021
1022     // create the nomex volume (bulk)
1023
1024     gMC->Gsvolu("S09X","BOX",kNomexBMaterial,nomexbpar,3);
1025     gMC->Gsvolu("S10X","BOX",kNomexBMaterial,nomexbpar,3);
1026
1027     // create the insulating material volume
1028
1029     gMC->Gsvolu("S09I","BOX",kInsuMaterial,insupar,3);
1030     gMC->Gsvolu("S10I","BOX",kInsuMaterial,insupar,3);
1031
1032     // create the PCB volume
1033
1034     gMC->Gsvolu("S09P","BOX",kPcbMaterial,pcbpar,3);
1035     gMC->Gsvolu("S10P","BOX",kPcbMaterial,pcbpar,3);
1036
1037     // create the sensitive volumes,
1038
1039     gMC->Gsvolu("S09G","BOX",kSensMaterial,dum,0);
1040     gMC->Gsvolu("S10G","BOX",kSensMaterial,dum,0);
1041
1042     // create the vertical frame volume
1043
1044     gMC->Gsvolu("S09V","BOX",kVframeMaterial,vFramepar,3);
1045     gMC->Gsvolu("S10V","BOX",kVframeMaterial,vFramepar,3);
1046
1047     // create the horizontal frame volume
1048
1049     gMC->Gsvolu("S09H","BOX",kHframeMaterial,hFramepar,3);
1050     gMC->Gsvolu("S10H","BOX",kHframeMaterial,hFramepar,3);
1051
1052     // create the horizontal border volume
1053
1054     gMC->Gsvolu("S09B","BOX",kBframeMaterial,bFramepar,3);
1055     gMC->Gsvolu("S10B","BOX",kBframeMaterial,bFramepar,3);
1056
1057     index = 0;
1058     for (i = 0; i < kNslats5; i++){
1059       for (Int_t quadrant = 1; quadrant <= 4; quadrant++) {
1060
1061         if (i == 0 && quadrant == 2) continue;
1062         if (i == 0 && quadrant == 4) continue;
1063
1064         sprintf(idSlatCh9,"LE%d",ConvertSlatNum(i,quadrant,kNslats5-1));
1065         sprintf(idSlatCh10,"LF%d",ConvertSlatNum(i,quadrant,kNslats5-1));
1066         Float_t xvFrame  = (slatLength5[i] - kVframeLength)/2.; // ok
1067
1068         // position the vertical frames (spacers)
1069         if (i != 1) {
1070           GetEnvelopes(8)->AddEnvelopeConstituent("S09V", idSlatCh9, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
1071           GetEnvelopes(8)->AddEnvelopeConstituent("S09V", idSlatCh9, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
1072           GetEnvelopes(9)->AddEnvelopeConstituent("S10V", idSlatCh10, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
1073           GetEnvelopes(9)->AddEnvelopeConstituent("S10V", idSlatCh10, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
1074         } else {  // no rounded spacer yet
1075           GetEnvelopes(8)->AddEnvelopeConstituent("S09V", idSlatCh9, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
1076           //       GetEnvelopes(8)->AddEnvelopeConstituent("S09V", idSlatCh9, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
1077           GetEnvelopes(9)->AddEnvelopeConstituent("S10V", idSlatCh10, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
1078           //       GetEnvelopes(9)->AddEnvelopeConstituent("S10V", idSlatCh10, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
1079         }
1080
1081         // position the panels and the insulating material
1082         for (j = 0; j < kNPCB5[i]; j++){
1083           if (i == 1 && j == 0) continue;
1084           index++;
1085           Float_t xx = kSensLength * (-kNPCB5[i]/2.+j+.5);
1086
1087           Float_t zPanel = spar[2] - nomexbpar[2];
1088           GetEnvelopes(8)->AddEnvelopeConstituent("S09X", idSlatCh9, 2*index-1,TGeoTranslation(xx,0.,zPanel));
1089           GetEnvelopes(8)->AddEnvelopeConstituent("S09X", idSlatCh9, 2*index,TGeoTranslation(xx,0.,-zPanel));
1090           GetEnvelopes(8)->AddEnvelopeConstituent("S09I", idSlatCh9, index,TGeoTranslation(xx,0.,0.));
1091
1092           GetEnvelopes(9)->AddEnvelopeConstituent("S10X", idSlatCh10, 2*index-1,TGeoTranslation(xx,0.,zPanel));
1093           GetEnvelopes(9)->AddEnvelopeConstituent("S10X", idSlatCh10, 2*index,TGeoTranslation(xx,0.,-zPanel));
1094           GetEnvelopes(9)->AddEnvelopeConstituent("S10I", idSlatCh10, index,TGeoTranslation(xx,0.,0.));
1095         }
1096       }
1097     }
1098
1099     // position the nomex volume inside the panel volume
1100     gMC->Gspos("S09N",1,"S09C",0.,0.,0.,0,"ONLY");
1101     gMC->Gspos("S10N",1,"S10C",0.,0.,0.,0,"ONLY");
1102
1103     // position panel  volume inside the bulk nomex material volume
1104     gMC->Gspos("S09C",1,"S09X",0.,0.,kNomexBWidth/2.,0,"ONLY");
1105     gMC->Gspos("S10C",1,"S10X",0.,0.,kNomexBWidth/2.,0,"ONLY");
1106
1107     // position the PCB volume inside the insulating material volume
1108     gMC->Gspos("S09P",1,"S09I",0.,0.,0.,0,"ONLY");
1109     gMC->Gspos("S10P",1,"S10I",0.,0.,0.,0,"ONLY");
1110
1111     // position the horizontal frame volume inside the PCB volume
1112     gMC->Gspos("S09H",1,"S09P",0.,0.,0.,0,"ONLY");
1113     gMC->Gspos("S10H",1,"S10P",0.,0.,0.,0,"ONLY");
1114
1115     // position the sensitive volume inside the horizontal frame volume
1116     gMC->Gsposp("S09G",1,"S09H",0.,0.,0.,0,"ONLY",senspar,3);
1117     gMC->Gsposp("S10G",1,"S10H",0.,0.,0.,0,"ONLY",senspar,3);
1118
1119     // position the border volumes inside the PCB volume
1120     Float_t yborder = ( kPcbHeight - kBframeHeight ) / 2.;
1121     gMC->Gspos("S09B",1,"S09P",0., yborder,0.,0,"ONLY");
1122     gMC->Gspos("S09B",2,"S09P",0.,-yborder,0.,0,"ONLY");
1123     gMC->Gspos("S10B",1,"S10P",0., yborder,0.,0,"ONLY");
1124     gMC->Gspos("S10B",2,"S10P",0.,-yborder,0.,0,"ONLY");
1125
1126     //      // create the NULOC volume and position it in the horizontal frame
1127
1128     gMC->Gsvolu("S09E","BOX",kNulocMaterial,nulocpar,3);
1129     gMC->Gsvolu("S10E","BOX",kNulocMaterial,nulocpar,3);
1130     index = 0;
1131     for (xx = -xxmax; xx <= xxmax; xx += 2*kNulocLength) {
1132       index++;
1133       gMC->Gspos("S09E",2*index-1,"S09B", xx, 0.,-kBframeWidth/2. + kNulocWidth/2, 0, "ONLY");
1134       gMC->Gspos("S09E",2*index  ,"S09B", xx, 0., kBframeWidth/2. - kNulocWidth/2, 0, "ONLY");
1135       gMC->Gspos("S10E",2*index-1,"S10B", xx, 0.,-kBframeWidth/2. + kNulocWidth/2, 0, "ONLY");
1136       gMC->Gspos("S10E",2*index  ,"S10B", xx, 0., kBframeWidth/2. - kNulocWidth/2, 0, "ONLY");
1137     }
1138
1139
1140     // position the volumes approximating the circular section of the pipe
1141     Float_t epsilon = 0.001;
1142     Int_t ndiv = 10;
1143     Int_t imax = 1;
1144     Double_t divpar[3];
1145     Double_t dydiv = kSensHeight/ndiv;
1146     Double_t ydiv  = (kSensHeight - dydiv)/2.;
1147     Float_t rmin   = AliMUONConstants::Rmin(4);
1148     Float_t xdiv   = 0.;
1149     Float_t xvol;
1150     Float_t yvol;
1151
1152     for (Int_t idiv = 0; idiv < ndiv; idiv++){
1153       ydiv += dydiv;
1154       xdiv = 0.;
1155       if (ydiv < rmin) xdiv = rmin * TMath::Sin( TMath::ACos((ydiv-dydiv/2.)/rmin) );
1156       divpar[0] = (kPcbLength - xdiv)/2.;
1157       divpar[1] = dydiv/2. - epsilon;
1158       divpar[2] = kSensWidth/2.;
1159       xvol = (kPcbLength + xdiv)/2.;
1160       yvol = ydiv;
1161
1162       for (Int_t quadrant = 1; quadrant <= 4; quadrant++) {
1163         sprintf(idSlatCh9,"LE%d",ConvertSlatNum(1,quadrant,kNslats5-1));
1164         sprintf(idSlatCh10,"LF%d",ConvertSlatNum(1,quadrant,kNslats5-1));
1165
1166         GetEnvelopes(8)->AddEnvelopeConstituentParam("S09G", idSlatCh9, quadrant*100+imax+4*idiv+1,
1167                                                      TGeoTranslation(xvol-kPcbLength * kNPCB5[1]/2.,yvol-kPcbLength,0.),3,divpar);
1168         GetEnvelopes(9)->AddEnvelopeConstituentParam("S10G", idSlatCh10,  quadrant*100+imax+4*idiv+1,
1169                                                      TGeoTranslation(xvol-kPcbLength * kNPCB5[1]/2.,yvol-kPcbLength,0.),3,divpar);
1170       }
1171     }
1172     // cout << "Geometry for Station 5...... done" << endl;
1173
1174   }
1175 }
1176
1177
1178 //______________________________________________________________________________
1179 void AliMUONSlatGeometryBuilder::SetTransformations()
1180 {
1181 // Defines the transformations for the station345 chambers.
1182 // ---
1183
1184   if (gAlice->GetModule("DIPO")) {
1185     // if DIPO is preset, the whole station will be placed in DDIP volume
1186     SetMotherVolume(4, "DDIP");
1187     SetMotherVolume(5, "DDIP");
1188     SetVolume(4, "CH05", true);
1189     SetVolume(5, "CH06", true);
1190   }
1191   else {
1192     SetVolume(4, "CH05");
1193     SetVolume(5, "CH06");
1194   }
1195
1196   if (gAlice->GetModule("SHIL")) {
1197     SetMotherVolume(6, "YOUT2");
1198     SetMotherVolume(7, "YOUT2");
1199     SetMotherVolume(8, "YOUT2");
1200     SetMotherVolume(9, "YOUT2");
1201   }
1202
1203   SetVolume(6, "CH07");
1204   SetVolume(7, "CH08");
1205   SetVolume(8, "CH09");
1206   SetVolume(9, "CH10");
1207
1208 // Stations 345 are not perpendicular to the beam axis
1209 // See AliMUONConstants class
1210   TGeoRotation st345inclination("rot99");
1211   st345inclination.RotateX(AliMUONConstants::St345Inclination());
1212
1213   Double_t zpos1= - AliMUONConstants::DefaultChamberZ(4);
1214   SetTransformation(4, TGeoTranslation(0., 0., zpos1), st345inclination);
1215
1216   zpos1= - AliMUONConstants::DefaultChamberZ(5);
1217   SetTransformation(5, TGeoTranslation(0., 0., zpos1), st345inclination);
1218
1219   zpos1 = - AliMUONConstants::DefaultChamberZ(6);
1220   SetTransformation(6, TGeoTranslation(0., 0., zpos1), st345inclination);
1221
1222   zpos1 = - AliMUONConstants::DefaultChamberZ(7);
1223   SetTransformation(7, TGeoTranslation(0., 0., zpos1), st345inclination );
1224
1225   zpos1 = - AliMUONConstants::DefaultChamberZ(8);
1226   SetTransformation(8, TGeoTranslation(0., 0., zpos1), st345inclination);
1227
1228   zpos1 = - AliMUONConstants::DefaultChamberZ(9);
1229   SetTransformation(9, TGeoTranslation(0., 0., zpos1), st345inclination);
1230
1231 }
1232
1233 //______________________________________________________________________________
1234 void AliMUONSlatGeometryBuilder::SetSensitiveVolumes()
1235 {
1236 // Defines the sensitive volumes for slat stations chambers.
1237 // ---
1238
1239   GetGeometry(4)->SetSensitiveVolume("S05G");
1240   GetGeometry(5)->SetSensitiveVolume("S06G");
1241   GetGeometry(6)->SetSensitiveVolume("S07G");
1242   GetGeometry(7)->SetSensitiveVolume("S08G");
1243   GetGeometry(8)->SetSensitiveVolume("S09G");
1244   GetGeometry(9)->SetSensitiveVolume("S10G");
1245 }
1246
1247 //______________________________________________________________________________
1248 Int_t  AliMUONSlatGeometryBuilder::ConvertSlatNum(Int_t numslat, Int_t quadnum, Int_t fspq) const
1249 {
1250 // On-line function establishing the correspondance between numslat (the slat number on a particular quadrant (numslat->0....4 for St3))
1251 // and slatnum (the slat number on the whole panel (slatnum->1...18 for St3)
1252   numslat += 1;
1253   if (quadnum==2 || quadnum==3)
1254     numslat += fspq;
1255   else
1256     numslat = fspq + 2-numslat;
1257   numslat -= 1;
1258
1259   if (quadnum==3 || quadnum==4) numslat += 2*fspq+1;
1260
1261   return numslat;
1262 }