MUON/AliMUONSlatGeometryBuilder.cxx

   1 /**************************************************************************
   2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   3  *                                                                        *
   4  * Author: The ALICE Off-line Project.                                    *
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  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 AliMUONSlatGeometryBuilder::~AliMUONSlatGeometryBuilder() {
  72 //
  73 }
  74
  75 //
  76 // public methods
  77 //
  78
  79 //______________________________________________________________________________
  80 void AliMUONSlatGeometryBuilder::CreateGeometry()
  81 {
  82   // CreateGeometry is the method containing all the informations concerning Stations 345 geometry.
  83   // It includes description and placements of support panels and slats.
  84   // The code comes directly from what was written in AliMUONv1.cxx before, with modifications concerning
  85   // the use of Enveloppe method to place the Geant volumes.
  86   // Now, few changes would allow the creation of a Slat methode where slat could be described by few parameters,
  87   // and this builder would then be dedicated only to the
  88   // placements of the slats. Those modifications could shorten the Station 345 geometry by a non-negligeable factor...
  89
  90   Int_t *idtmed = fMUON->GetIdtmed()->GetArray()-1099;
  91
  92   Float_t angle;
  93   Float_t *dum=0;
  94
  95   // define the id of tracking media:
  96   Int_t idAir    = idtmed[1100]; // medium 1
  97   Int_t idGas    = idtmed[1108]; // medium 9 = Ar-CO2 gas (80%+20%)
  98   Int_t idCopper = idtmed[1110];
  99   Int_t idG10    = idtmed[1111];
 100   Int_t idCarbon = idtmed[1112];
 101   Int_t idRoha   = idtmed[1113];
 102   Int_t idNomex  = idtmed[1114]; // honey comb
 103   Int_t idNoryl  = idtmed[1115];
 104   Int_t idNomexB = idtmed[1116]; // bulk material
 105
 106   // sensitive area: 40*40 cm**2
 107   const Float_t kSensLength = 40.;
 108   const Float_t kSensHeight = 40.;
 109   const Float_t kSensWidth  = AliMUONConstants::Pitch()*2;// 0.5 cm, according to TDR fig 2.120
 110   const Int_t kSensMaterial = idGas;
 111   //     const Float_t kYoverlap   = 1.5;
 112
 113   // PCB dimensions in cm; width: 30 mum copper
 114   const Float_t kPcbLength  = kSensLength;
 115   const Float_t kPcbHeight  = 58.; // updated Ch. Finck
 116   const Float_t kPcbWidth   = 0.003;
 117   const Int_t kPcbMaterial  = idCopper;
 118
 119   // Insulating material: 220 mum G10 fiber  glued to pcb
 120   const Float_t kInsuLength = kPcbLength;
 121   const Float_t kInsuHeight = kPcbHeight;
 122   const Float_t kInsuWidth  = 0.022;  // updated Ch. Finck
 123   const Int_t kInsuMaterial = idG10;
 124
 125   // Carbon fiber panels: 200mum carbon/epoxy skin
 126   const Float_t kCarbonWidth  = 0.020;
 127   const Int_t kCarbonMaterial = idCarbon;
 128
 129   // Nomex (honey comb) between the two panel carbon skins
 130   const Float_t kNomexLength = kSensLength;
 131   const Float_t kNomexHeight = kSensHeight;
 132   const Float_t kNomexWidth  = 0.8; // updated Ch. Finck
 133   const Int_t kNomexMaterial = idNomex;
 134
 135   // Bulk Nomex under panel sandwich Ch. Finck
 136   const Float_t kNomexBWidth  = 0.025;
 137   const Int_t kNomexBMaterial = idNomexB;
 138
 139   // Panel sandwich 0.02 carbon*2 + 0.8 nomex
 140   const Float_t kPanelLength = kSensLength;
 141   const Float_t kPanelHeight = kSensHeight;
 142   const Float_t kPanelWidth  = 2 * kCarbonWidth + kNomexWidth;
 143
 144   // Frame along the rounded (spacers) slats
 145   const Float_t kRframeHeight = 2.00;
 146
 147   // spacer around the slat: 2 sticks along length,2 along height
 148   // H: the horizontal ones
 149   const Float_t kHframeLength = kPcbLength;
 150   const Float_t kHframeHeight = 1.95; // updated Ch. Finck
 151   const Float_t kHframeWidth  = kSensWidth;
 152   const Int_t kHframeMaterial = idNoryl;
 153
 154   // V: the vertical ones; vertical spacers
 155   const Float_t kVframeLength = 2.5;
 156   const Float_t kVframeHeight = kSensHeight + kHframeHeight;
 157   const Float_t kVframeWidth  = kSensWidth;
 158   const Int_t kVframeMaterial = idNoryl;
 159
 160   // B: the horizontal border filled with rohacell: ok Ch. Finck
 161   const Float_t kBframeLength = kHframeLength;
 162   const Float_t kBframeHeight = (kPcbHeight - kSensHeight)/2. - kHframeHeight;
 163   const Float_t kBframeWidth  = kHframeWidth;
 164   const Int_t kBframeMaterial = idRoha;
 165
 166   // NULOC: 30 mum copper + 200 mum vetronite (same radiation length as 14mum copper) for electronics
 167   const Float_t kNulocLength   = 2.5;
 168   const Float_t kNulocHeight   = kBframeHeight;
 169   const Float_t kNulocWidth    = 0.0030 + 0.0014; // equivalent copper width of vetronite;
 170   const Int_t   kNulocMaterial = idCopper;
 171
 172   // Slat parameters
 173   const Float_t kSlatHeight = kPcbHeight;
 174   const Float_t kSlatWidth  = kSensWidth + 2.*(kPcbWidth + kInsuWidth + kPanelWidth
 175                                                + kNomexBWidth); //replaced rohacell with Nomex Ch. Finck
 176   // const Int_t   kSlatMaterial = idAir;
 177   const Float_t kDslatLength  = -1.25; // position of the slat respect to the beam plane (half vertical spacer) Ch. Finck
 178   Float_t zSlat               = AliMUONConstants::DzSlat();// implemented Ch. Finck
 179   Float_t dzCh                = AliMUONConstants::DzCh();
 180
 181   Float_t spar[3];
 182   Int_t i, j;
 183   Int_t detElemId;
 184
 185   // the panel volume contains the nomex
 186   Float_t panelpar[3] = { kPanelLength/2., kPanelHeight/2., kPanelWidth/2. };
 187   Float_t nomexpar[3] = { kNomexLength/2., kNomexHeight/2., kNomexWidth/2. };
 188   Float_t twidth =  kPanelWidth +  kNomexBWidth;
 189   Float_t nomexbpar[3] = {kNomexLength/2., kNomexHeight/2.,twidth/2. };// bulk nomex
 190
 191   // insulating material contains PCB-> gas
 192   twidth = 2*(kInsuWidth + kPcbWidth) + kSensWidth ;
 193   Float_t insupar[3] = {kInsuLength/2., kInsuHeight/2., twidth/2. };
 194   twidth -= 2 * kInsuWidth;
 195   Float_t pcbpar[3]  = {kPcbLength/2., kPcbHeight/2., twidth/2. };
 196   Float_t senspar[3] = {kSensLength/2., kSensHeight/2., kSensWidth/2. };
 197   Float_t theight    = 2 * kHframeHeight + kSensHeight;
 198   Float_t hFramepar[3] = {kHframeLength/2., theight/2., kHframeWidth/2.};
 199   Float_t bFramepar[3] = {kBframeLength/2., kBframeHeight/2., kBframeWidth/2.};
 200   Float_t vFramepar[3] = {kVframeLength/2., kVframeHeight/2., kVframeWidth/2.};
 201   Float_t nulocpar[3]  = {kNulocLength/2.,  kNulocHeight/2.,  kNulocWidth/2.};
 202
 203   Float_t xx;
 204   Float_t xxmax = (kBframeLength - kNulocLength)/2.;
 205   Int_t index=0;
 206
 207   AliMUONChamber *iChamber, *iChamber1, *iChamber2;
 208
 209   Int_t* fStations = new Int_t[5];
 210   for (Int_t i=0; i<5; i++) fStations[i] = 1;
 211   fStations[2] = 1;
 212
 213   if (fStations[2])
 214     {
 215       //********************************************************************
 216       //                            Station 3                             **
 217       //********************************************************************
 218       // indices 1 and 2 for first and second chambers in the station
 219       // iChamber (first chamber) kept for other quanties than Z,
 220       // assumed to be the same in both chambers
 221
 222       iChamber = &fMUON->Chamber(4);
 223       iChamber1 = iChamber;
 224       iChamber2 = &fMUON->Chamber(5);
 225
 226       //GetGeometry(4)->SetDebug(kTRUE);
 227       //GetGeometry(5)->SetDebug(kTRUE);
 228
 229       if (!gAlice->GetModule("DIPO")) {
 230         // Mother volume for each chamber in st3 are only defined if Dipole volue is there.
 231         // Outer excess and inner recess for mother volume radius
 232         // with respect to ROuter and RInner
 233         Float_t dMotherInner = AliMUONConstants::Rmin(2)-kRframeHeight;
 234         Float_t dMotherOutner= AliMUONConstants::Rmax(2)+kVframeLength + 37.0;
 235         // 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
 236         Float_t tpar[3];
 237         Double_t dstation =  ( (-AliMUONConstants::DefaultChamberZ(5)) -
 238                                (-AliMUONConstants::DefaultChamberZ(4)) ) /2.1;
 239         tpar[0] = dMotherInner;
 240         tpar[1] = dMotherOutner;
 241         tpar[2] = dstation;
 242         gMC->Gsvolu("CH05", "TUBE", idAir, tpar, 3);
 243         gMC->Gsvolu("CH06", "TUBE", idAir, tpar, 3);
 244       }
 245       // volumes for slat geometry (xx=5,..,10 chamber id):
 246       // Sxx0 Sxx1 Sxx2 Sxx3  -->   Slat Mother volumes
 247       // SxxG                          -->   Sensitive volume (gas)
 248       // SxxP                          -->   PCB (copper)
 249       // SxxI                          -->   Insulator (G10)
 250       // SxxC                          -->   Carbon panel
 251       // SxxN                          -->   Nomex comb
 252       // SxxX                          -->   Nomex bulk
 253       // SxxH, SxxV                    -->   Horizontal and Vertical frames (Noryl)
 254       // SB5x                          -->   Volumes for the 35 cm long PCB
 255       // slat dimensions: slat is a MOTHER volume!!! made of air
 256
 257       // only for chamber 5: slat 1 has a PCB shorter by 5cm!
 258
 259       Float_t tlength = 35.;
 260       Float_t panelpar2[3]  = { tlength/2., panelpar[1],  panelpar[2]};
 261       Float_t nomexpar2[3]  = { tlength/2., nomexpar[1],  nomexpar[2]};
 262       Float_t nomexbpar2[3] = { tlength/2., nomexbpar[1],  nomexbpar[2]};
 263       Float_t insupar2[3]   = { tlength/2., insupar[1],   insupar[2]};
 264       Float_t pcbpar2[3]    = { tlength/2., pcbpar[1],    pcbpar[2]};
 265       Float_t senspar2[3]   = { tlength/2., senspar[1],   senspar[2]};
 266       Float_t hFramepar2[3] = { tlength/2., hFramepar[1], hFramepar[2]};
 267       Float_t bFramepar2[3] = { tlength/2., bFramepar[1], bFramepar[2]};
 268       Float_t *dum=0;
 269       Float_t pcbDLength3   = (kPcbLength - tlength);
 270
 271       const Int_t   kNslats3         = 5;  // number of slats per quadrant
 272       const Int_t   kNPCB3[kNslats3] = {4, 4, 4, 3, 2}; // n PCB per slat
 273       const Float_t kXpos3[kNslats3] = {0., 0., 0., 0., 0.};//{31., 0., 0., 0., 0.};
 274       const Float_t kYpos3[kNslats3] = {0, 37.8, 37.7, 37.3, 33.7};
 275       Float_t slatLength3[kNslats3];
 276
 277       // create and position the slat (mother) volumes
 278
 279       char idSlatCh5[5];
 280       char idSlatCh6[5];
 281       Float_t xSlat3;
 282       Float_t ySlat3 = 0;
 283       Float_t angle = 0.;
 284       Float_t spar2[3];
 285       for (i = 0; i < kNslats3; i++){
 286
 287         slatLength3[i] = kPcbLength * kNPCB3[i] + 2.* kVframeLength;
 288         xSlat3 = slatLength3[i]/2. +  kDslatLength + kXpos3[i];
 289         ySlat3 += kYpos3[i];
 290
 291         spar[0] = slatLength3[i]/2.;
 292         spar[1] = kSlatHeight/2.;
 293         spar[2] = kSlatWidth/2.;
 294         // take away 5 cm from the first slat in chamber 5
 295         if (i == 0 || i == 1 || i == 2) { // 1 pcb is shortened by 5cm
 296           spar2[0] = spar[0] - pcbDLength3/2.;
 297         } else {
 298           spar2[0] = spar[0];
 299         }
 300         spar2[1] = spar[1];
 301         spar2[2] = spar[2];
 302         Float_t dzCh3 = dzCh;
 303         Float_t zSlat3 = (i%2 ==0)? -zSlat : zSlat; // seems not that zSlat3 = zSlat4 & 5 refering to plan PQ7EN345-6 ?
 304
 305         sprintf(idSlatCh5,"LA%d",i+kNslats3-1);
 306         //gMC->Gsvolu(idSlatCh5,"BOX",kSlatMaterial,spar2,3);
 307         detElemId = 509 - (i + kNslats3-1-4);
 308         GetEnvelopes(4)->AddEnvelope(idSlatCh5, detElemId, true, TGeoTranslation(xSlat3, ySlat3, -zSlat3 + dzCh3),
 309                                      TGeoRotation("rot1",90,angle,90,90+angle,0,0) );
 310
 311         sprintf(idSlatCh5,"LA%d",3*kNslats3-2+i);
 312         //gMC->Gsvolu(idSlatCh5,"BOX",kSlatMaterial,spar2,3);
 313         detElemId = 500 + (i + kNslats3-1-4);
 314         GetEnvelopes(4)->AddEnvelope(idSlatCh5, detElemId, true, TGeoTranslation(-xSlat3, ySlat3, zSlat3 - dzCh3),
 315                                      TGeoRotation("rot2",90,180+angle,90,90+angle,180,0) );
 316
 317         if (i > 0) {
 318           sprintf(idSlatCh5,"LA%d",kNslats3-1-i);
 319           // gMC->Gsvolu(idSlatCh5,"BOX",kSlatMaterial,spar2,3);
 320           detElemId = 509 + (i + kNslats3-1-4);
 321           GetEnvelopes(4)->AddEnvelope(idSlatCh5, detElemId, true, TGeoTranslation(xSlat3, -ySlat3, -zSlat3 + dzCh3),
 322                                        TGeoRotation("rot3",90,angle,90,270+angle,180,0) );
 323
 324           sprintf(idSlatCh5,"LA%d",3*kNslats3-2-i);
 325           // gMC->Gsvolu(idSlatCh5,"BOX",kSlatMaterial,spar2,3);
 326           detElemId = 518 - (i + kNslats3-1-4);
 327           GetEnvelopes(4)->AddEnvelope(idSlatCh5, detElemId, true, TGeoTranslation(-xSlat3, -ySlat3, zSlat3 - dzCh3),
 328                                        TGeoRotation("rot4",90,180+angle,90,270+angle,0,0) );
 329         }
 330
 331         sprintf(idSlatCh6,"LB%d",kNslats3-1+i);
 332         // gMC->Gsvolu(idSlatCh6,"BOX",kSlatMaterial,spar,3);
 333         detElemId = 609 - (i  + kNslats3-1-4);
 334         GetEnvelopes(5)->AddEnvelope(idSlatCh6, detElemId, true, TGeoTranslation(xSlat3, ySlat3, -zSlat3 + dzCh3),
 335                                      TGeoRotation("rot5",90,angle,90,90+angle,0,0) );
 336         sprintf(idSlatCh6,"LB%d",3*kNslats3-2+i);
 337         // gMC->Gsvolu(idSlatCh6,"BOX",kSlatMaterial,spar,3);
 338         detElemId = 600 + (i + kNslats3-1-4);
 339         GetEnvelopes(5)->AddEnvelope(idSlatCh6, detElemId, true, TGeoTranslation(-xSlat3, ySlat3, zSlat3 - dzCh3),
 340                                      TGeoRotation("rot6",90,180+angle,90,90+angle,180,0) );
 341
 342         if (i > 0) {
 343           sprintf(idSlatCh6,"LB%d",kNslats3-1-i);
 344           //gMC->Gsvolu(idSlatCh6,"BOX",kSlatMaterial,spar,3);
 345           detElemId = 609 + (i + kNslats3-1-4);
 346           GetEnvelopes(5)->AddEnvelope(idSlatCh6, detElemId, true, TGeoTranslation(xSlat3, -ySlat3, -zSlat3 + dzCh3),
 347                                        TGeoRotation("rot7",90,angle,90,270+angle,180,0) );
 348
 349           sprintf(idSlatCh6,"LB%d",3*kNslats3-2-i);
 350           //gMC->Gsvolu(idSlatCh6,"BOX",kSlatMaterial,spar,3);
 351           detElemId = 618 - (i + kNslats3-1-4);
 352           GetEnvelopes(5)->AddEnvelope(idSlatCh6, detElemId, true, TGeoTranslation(-xSlat3, -ySlat3, zSlat3 - dzCh3),
 353                                        TGeoRotation("rot8",90,180+angle,90,270+angle,0,0) );
 354         }
 355       }
 356
 357       // create the panel volume
 358
 359       gMC->Gsvolu("S05C","BOX",kCarbonMaterial,panelpar,3);
 360       gMC->Gsvolu("SB5C","BOX",kCarbonMaterial,panelpar2,3);
 361       gMC->Gsvolu("S06C","BOX",kCarbonMaterial,panelpar,3);
 362
 363       // create the nomex volume (honey comb)
 364
 365       gMC->Gsvolu("S05N","BOX",kNomexMaterial,nomexpar,3);
 366       gMC->Gsvolu("SB5N","BOX",kNomexMaterial,nomexpar2,3);
 367       gMC->Gsvolu("S06N","BOX",kNomexMaterial,nomexpar,3);
 368
 369       // create the nomex volume (bulk)
 370
 371       gMC->Gsvolu("S05X","BOX",kNomexBMaterial,nomexbpar,3);
 372       gMC->Gsvolu("SB5X","BOX",kNomexBMaterial,nomexbpar2,3);
 373       gMC->Gsvolu("S06X","BOX",kNomexBMaterial,nomexbpar,3);
 374
 375       // create the insulating material volume
 376
 377       gMC->Gsvolu("S05I","BOX",kInsuMaterial,insupar,3);
 378       gMC->Gsvolu("SB5I","BOX",kInsuMaterial,insupar2,3);
 379       gMC->Gsvolu("S06I","BOX",kInsuMaterial,insupar,3);
 380
 381       // create the PCB volume
 382
 383       gMC->Gsvolu("S05P","BOX",kPcbMaterial,pcbpar,3);
 384       gMC->Gsvolu("SB5P","BOX",kPcbMaterial,pcbpar2,3);
 385       gMC->Gsvolu("S06P","BOX",kPcbMaterial,pcbpar,3);
 386
 387       // create the sensitive volumes,
 388
 389       gMC->Gsvolu("S05G","BOX",kSensMaterial,dum,0);
 390       gMC->Gsvolu("S06G","BOX",kSensMaterial,dum,0);
 391
 392       // create the vertical frame volume
 393
 394       gMC->Gsvolu("S05V","BOX",kVframeMaterial,vFramepar,3);
 395       gMC->Gsvolu("S06V","BOX",kVframeMaterial,vFramepar,3);
 396
 397       // create the horizontal frame volume
 398
 399       gMC->Gsvolu("S05H","BOX",kHframeMaterial,hFramepar,3);
 400       gMC->Gsvolu("SB5H","BOX",kHframeMaterial,hFramepar2,3);
 401       gMC->Gsvolu("S06H","BOX",kHframeMaterial,hFramepar,3);
 402
 403       // create the horizontal border volume
 404
 405       gMC->Gsvolu("S05B","BOX",kBframeMaterial,bFramepar,3);
 406       gMC->Gsvolu("SB5B","BOX",kBframeMaterial,bFramepar2,3);
 407       gMC->Gsvolu("S06B","BOX",kBframeMaterial,bFramepar,3);
 408
 409       index = 0;
 410       for (i = 0; i<kNslats3; i++){
 411         for (Int_t quadrant = 1; quadrant <= 4; quadrant++) {
 412
 413           if (i == 0 && quadrant == 2) continue;
 414           if (i == 0 && quadrant == 4) continue;
 415
 416           sprintf(idSlatCh5,"LA%d",ConvertSlatNum(i,quadrant,kNslats3-1));
 417           sprintf(idSlatCh6,"LB%d",ConvertSlatNum(i,quadrant,kNslats3-1));
 418           Float_t xvFrame  = (slatLength3[i] - kVframeLength)/2.;
 419           Float_t xvFrame2  = xvFrame;
 420
 421           if (i == 0 || i == 1 || i == 2) xvFrame2 -= pcbDLength3/2.;
 422
 423           // position the vertical frames
 424           if ( i > 2) {
 425             GetEnvelopes(4)->AddEnvelopeConstituent("S05V", idSlatCh5,
 426                                                     (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 427             GetEnvelopes(4)->AddEnvelopeConstituent("S05V", idSlatCh5,
 428                                                     (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 429             GetEnvelopes(5)->AddEnvelopeConstituent("S06V", idSlatCh6,
 430                                                     (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 431             GetEnvelopes(5)->AddEnvelopeConstituent("S06V", idSlatCh6,
 432                                                     (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 433           }
 434
 435           if (i == 2) {
 436             GetEnvelopes(4)->AddEnvelopeConstituent("S05V", idSlatCh5,
 437                                                     (2*i-1)*10+quadrant,TGeoTranslation(xvFrame2,0.,0.));
 438             GetEnvelopes(4)->AddEnvelopeConstituent("S05V", idSlatCh5,
 439                                                     (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 440             GetEnvelopes(5)->AddEnvelopeConstituent("S06V", idSlatCh6,
 441                                                     (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 442             GetEnvelopes(5)->AddEnvelopeConstituent("S06V", idSlatCh6,
 443                                                     (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 444           }
 445
 446           if (i == 0 || i == 1) { // no rounded spacer for the moment (Ch. Finck)
 447             GetEnvelopes(4)->AddEnvelopeConstituent("S05V", idSlatCh5,
 448                                                     (2*i-1)*10+quadrant,TGeoTranslation(xvFrame2,0.,0.));
 449             GetEnvelopes(5)->AddEnvelopeConstituent("S06V", idSlatCh6,
 450                                                     (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 451           }
 452
 453           // position the panels and the insulating material
 454           for (j = 0; j < kNPCB3[i]; j++){
 455             if (i == 1 && j == 0) continue;
 456             if (i == 0 && j == 0) continue;
 457             index++;
 458             Float_t xx = kSensLength * (-kNPCB3[i]/2. + j + 0.5);
 459             Float_t xx2 = xx - pcbDLength3/2.;
 460
 461             Float_t zPanel = spar[2] - nomexbpar[2];
 462
 463             if ( (i == 0 || i == 1 || i == 2) && j == kNPCB3[i]-1) { // 1 pcb is shortened by 5cm
 464               GetEnvelopes(4)->AddEnvelopeConstituent("SB5X", idSlatCh5, 2*index-1,TGeoTranslation(xx2,0.,zPanel));
 465               GetEnvelopes(4)->AddEnvelopeConstituent("SB5X", idSlatCh5, 2*index,TGeoTranslation(xx2,0.,-zPanel));
 466               GetEnvelopes(4)->AddEnvelopeConstituent("SB5I", idSlatCh5, index,TGeoTranslation(xx2,0.,0.));
 467             } else {
 468               GetEnvelopes(4)->AddEnvelopeConstituent("S05X", idSlatCh5, 2*index-1,TGeoTranslation(xx,0.,zPanel));
 469               GetEnvelopes(4)->AddEnvelopeConstituent("S05X", idSlatCh5, 2*index,TGeoTranslation(xx,0.,-zPanel));
 470               GetEnvelopes(4)->AddEnvelopeConstituent("S05I", idSlatCh5, index,TGeoTranslation(xx,0.,0.));
 471             }
 472             GetEnvelopes(5)->AddEnvelopeConstituent("S06X", idSlatCh6, 2*index-1,TGeoTranslation(xx,0.,zPanel));
 473             GetEnvelopes(5)->AddEnvelopeConstituent("S06X", idSlatCh6, 2*index,TGeoTranslation(xx,0.,-zPanel));
 474             GetEnvelopes(5)->AddEnvelopeConstituent("S06I", idSlatCh6, index,TGeoTranslation(xx,0.,0.));
 475
 476           }
 477         }
 478       }
 479
 480       // position the nomex volume inside the panel volume
 481       gMC->Gspos("S05N",1,"S05C",0.,0.,0.,0,"ONLY");
 482       gMC->Gspos("SB5N",1,"SB5C",0.,0.,0.,0,"ONLY");
 483       gMC->Gspos("S06N",1,"S06C",0.,0.,0.,0,"ONLY");
 484
 485       // position panel volume inside the bulk nomex material volume
 486       gMC->Gspos("S05C",1,"S05X",0.,0.,kNomexBWidth/2.,0,"ONLY");
 487       gMC->Gspos("SB5C",1,"SB5X",0.,0.,kNomexBWidth/2.,0,"ONLY");
 488       gMC->Gspos("S06C",1,"S06X",0.,0.,kNomexBWidth/2.,0,"ONLY");
 489
 490       // position the PCB volume inside the insulating material volume
 491       gMC->Gspos("S05P",1,"S05I",0.,0.,0.,0,"ONLY");
 492       gMC->Gspos("SB5P",1,"SB5I",0.,0.,0.,0,"ONLY");
 493       gMC->Gspos("S06P",1,"S06I",0.,0.,0.,0,"ONLY");
 494
 495       // position the horizontal frame volume inside the PCB volume
 496       gMC->Gspos("S05H",1,"S05P",0.,0.,0.,0,"ONLY");
 497       gMC->Gspos("SB5H",1,"SB5P",0.,0.,0.,0,"ONLY");
 498       gMC->Gspos("S06H",1,"S06P",0.,0.,0.,0,"ONLY");
 499
 500       // position the sensitive volume inside the horizontal frame volume
 501       gMC->Gsposp("S05G",1,"S05H",0.,0.,0.,0,"ONLY",senspar,3);
 502       gMC->Gsposp("S05G",1,"SB5H",0.,0.,0.,0,"ONLY",senspar2,3);
 503       gMC->Gsposp("S06G",1,"S06H",0.,0.,0.,0,"ONLY",senspar,3);
 504
 505
 506       // position the border volumes inside the PCB volume
 507       Float_t yborder = ( kPcbHeight - kBframeHeight ) / 2.;
 508       gMC->Gspos("S05B",1,"S05P",0., yborder,0.,0,"ONLY");
 509       gMC->Gspos("S05B",2,"S05P",0.,-yborder,0.,0,"ONLY");
 510       gMC->Gspos("SB5B",1,"SB5P",0., yborder,0.,0,"ONLY");
 511       gMC->Gspos("SB5B",2,"SB5P",0.,-yborder,0.,0,"ONLY");
 512
 513       gMC->Gspos("S06B",1,"S06P",0., yborder,0.,0,"ONLY");
 514       gMC->Gspos("S06B",2,"S06P",0.,-yborder,0.,0,"ONLY");
 515
 516       // create the NULOC volume and position it in the horizontal frame
 517       gMC->Gsvolu("S05E","BOX",kNulocMaterial,nulocpar,3);
 518       gMC->Gsvolu("S06E","BOX",kNulocMaterial,nulocpar,3);
 519       index = 0;
 520       Float_t xxmax2 = xxmax - pcbDLength3/2.;
 521       for (xx = -xxmax; xx <= xxmax; xx += 2*kNulocLength) {
 522         index++;
 523         gMC->Gspos("S05E",2*index-1,"S05B", xx, 0.,-kBframeWidth/2. + kNulocWidth/2, 0, "ONLY");
 524         gMC->Gspos("S05E",2*index  ,"S05B", xx, 0., kBframeWidth/2. - kNulocWidth/2, 0, "ONLY");
 525         gMC->Gspos("S06E",2*index-1,"S06B", xx, 0.,-kBframeWidth/2. + kNulocWidth/2, 0, "ONLY");
 526         gMC->Gspos("S06E",2*index  ,"S06B", xx, 0., kBframeWidth/2.-  kNulocWidth/2, 0, "ONLY");
 527         if (xx > -xxmax2 && xx< xxmax2) {
 528           gMC->Gspos("S05E",2*index-1,"SB5B", xx, 0.,-kBframeWidth/2.+ kNulocWidth/2, 0, "ONLY");
 529           gMC->Gspos("S05E",2*index  ,"SB5B", xx, 0., kBframeWidth/2.- kNulocWidth/2, 0, "ONLY");
 530         }
 531       }
 532
 533       // position the volumes approximating the circular section of the pipe
 534       Float_t epsilon = 0.001;
 535       Int_t ndiv = 6;
 536       Int_t imax = 1;
 537       Double_t divpar[3];
 538       Double_t dydiv = kSensHeight/ndiv;
 539       Double_t ydiv  = (kSensHeight - dydiv)/2.;
 540       Double_t rmin  = AliMUONConstants::Rmin(2);// Same radius for both chamber in St3
 541       Double_t xdiv  = 0.;
 542       Float_t xvol;
 543       Float_t yvol;
 544
 545       for (Int_t idiv = 0; idiv < ndiv; idiv++){
 546         ydiv += dydiv;
 547         xdiv = 0.;
 548         if (ydiv < rmin) xdiv = rmin * TMath::Sin( TMath::ACos((ydiv-dydiv/2.)/rmin) );
 549         divpar[0] = (kPcbLength - xdiv)/2.;
 550         divpar[1] = dydiv/2. - epsilon;
 551         divpar[2] = kSensWidth/2.;
 552         xvol = (kPcbLength + xdiv)/2.;
 553         yvol = ydiv;
 554
 555         // Volumes close to the beam pipe for slat i=1 so 4 slats per chamber
 556         for (Int_t quadrant = 1; quadrant <= 4; quadrant++) {
 557           sprintf(idSlatCh5,"LA%d",ConvertSlatNum(1,quadrant,kNslats3-1));
 558           sprintf(idSlatCh6,"LB%d",ConvertSlatNum(1,quadrant,kNslats3-1));
 559
 560           GetEnvelopes(4)->AddEnvelopeConstituentParam("S05G", idSlatCh5, quadrant*100+imax+4*idiv+1,
 561                                                        TGeoTranslation(xvol-(kPcbLength * kNPCB3[1]/2.),yvol-kPcbLength,0.),3,divpar);
 562
 563           GetEnvelopes(5)->AddEnvelopeConstituentParam("S06G", idSlatCh6,  quadrant*100+imax+4*idiv+1,
 564                                                        TGeoTranslation(xvol-(kPcbLength * kNPCB3[1]/2.),yvol-kPcbLength,0.),3,divpar);
 565         }
 566       }
 567
 568       // Volumes close to the beam pipe for slat i=0 so 2 slats per chamber (central slat for station 3)
 569       //      Gines Martinez, Subatech sep 04
 570       // 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
 571       // Accordingly to plan PQ-LAT-SR1 of CEA-DSM-DAPNIA-SIS/BE ph HARDY 8-Oct-2002
 572       // Rmin = 31.5 cm
 573       rmin = AliMUONConstants::Rmin(2); // Same radius for both chamber in St3
 574       ndiv  = 9;
 575       dydiv = kSensHeight/ndiv;           // Vertical size of the box volume approximating the rounded PCB
 576       ydiv  = -kSensHeight/2 + dydiv/2.;   // Initializing vertical position of the volume from bottom
 577       xdiv  = 0.;                         // Initializing horizontal position of the box volumes
 578
 579       for (Int_t idiv = 0; idiv < ndiv; idiv++){
 580         xdiv = TMath::Abs( rmin * TMath::Sin( TMath::ACos(ydiv/rmin) ) );
 581         divpar[0] = (kPcbLength - xdiv)/2.; // Dimension of the box volume
 582         divpar[1] = dydiv/2. - epsilon;
 583         divpar[2] = kSensWidth/2.;
 584         xvol = (kPcbLength + xdiv)/2.; //2D traslition for positionning of box volume
 585         yvol =  ydiv;
 586         Int_t side;
 587         for (side = 1; side <= 2; side++) {
 588           sprintf(idSlatCh5,"LA%d",4);
 589           sprintf(idSlatCh6,"LB%d",4);
 590           if(side == 2) {
 591             sprintf(idSlatCh5,"LA%d",13);
 592             sprintf(idSlatCh6,"LB%d",13);
 593           }
 594           GetEnvelopes(4)->AddEnvelopeConstituentParam("S05G", idSlatCh5,500+side*100+imax+4*idiv+1,
 595                                                        TGeoTranslation(xvol-(kPcbLength * kNPCB3[0]/2.),yvol,0.),3,divpar);
 596
 597           GetEnvelopes(5)->AddEnvelopeConstituentParam("S06G", idSlatCh6,500+side*100+imax+4*idiv+1,
 598                                                        TGeoTranslation(xvol-(kPcbLength * kNPCB3[0]/2.),yvol,0.),3,divpar);
 599         }
 600         ydiv += dydiv; // Going from bottom to top
 601       }
 602       // cout << "Geometry for Station 3...... done" << endl;
 603     }
 604
 605   if (fStations[3]) {
 606
 607
 608     // //********************************************************************
 609     // //                            Station 4                             **
 610     // //********************************************************************
 611     //      // indices 1 and 2 for first and second chambers in the station
 612     //      // iChamber (first chamber) kept for other quanties than Z,
 613     //      // assumed to be the same in both chambers
 614     //      corrected geometry (JP. Cussonneau, Ch. Finck)
 615
 616     iChamber = &fMUON->Chamber(6);
 617     iChamber1 = iChamber;
 618     iChamber2 = &fMUON->Chamber(7);
 619
 620     const Int_t   kNslats4          = 7;  // number of slats per quadrant
 621     const Int_t   kNPCB4[kNslats4]  = {5, 6, 5, 5, 4, 3, 2}; // n PCB per slat
 622     const Float_t kXpos4[kNslats4]  = {38.2, 0., 0., 0., 0., 0., 0.};
 623     const Float_t kYpos41[kNslats4] = {0., 38.2, 34.40, 36.60, 29.3, 37.0, 28.6};
 624     const Float_t kYpos42[kNslats4] = {0., 38.2, 37.85, 37.55, 29.4, 37.0, 28.6};
 625
 626     Float_t slatLength4[kNslats4];
 627
 628
 629     // Mother volume for each chamber
 630     // Outer excess and inner recess for mother volume radius
 631     // with respect to ROuter and RInner
 632     Float_t dMotherInner =  AliMUONConstants::Rmin(3)-kRframeHeight;
 633     // 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
 634     Float_t dMotherOutner= AliMUONConstants::Rmax(3)+kVframeLength + 40.0;
 635     Float_t tpar[3];
 636     Double_t dstation =  ( (-AliMUONConstants::DefaultChamberZ(7)) -
 637                            (-AliMUONConstants::DefaultChamberZ(6)) ) /2.2;
 638     tpar[0] = dMotherInner;
 639     tpar[1] = dMotherOutner;
 640     tpar[2] = dstation;
 641     gMC->Gsvolu("CH07", "TUBE", idAir, tpar, 3);
 642     gMC->Gsvolu("CH08", "TUBE", idAir, tpar, 3);
 643
 644     // create and position the slat (mother) volumes
 645
 646     char idSlatCh7[5];
 647     char idSlatCh8[5];
 648     Float_t xSlat4;
 649     Float_t ySlat41 = 0;
 650     Float_t ySlat42 = 0;
 651
 652     angle = 0.;
 653
 654     for (i = 0; i<kNslats4; i++){
 655       slatLength4[i] = kPcbLength * kNPCB4[i] + 2. * kVframeLength;
 656       xSlat4 = slatLength4[i]/2. + kDslatLength + kXpos4[i];
 657       ySlat41 += kYpos41[i];
 658       ySlat42 += kYpos42[i];
 659
 660       spar[0] = slatLength4[i]/2.;
 661       spar[1] = kSlatHeight/2.;
 662       spar[2] = kSlatWidth/2.;
 663       Float_t dzCh4 = dzCh;
 664       Float_t zSlat4 = (i%2 ==0)? -zSlat : zSlat;
 665
 666       sprintf(idSlatCh7,"LC%d",kNslats4-1+i);
 667       //gMC->Gsvolu(idSlatCh7,"BOX",kSlatMaterial,spar,3);
 668       detElemId = 713 - (i + kNslats4-1-6);
 669       GetEnvelopes(6)->AddEnvelope(idSlatCh7, detElemId, true, TGeoTranslation(xSlat4, ySlat41, -zSlat4 + dzCh4),
 670                                    TGeoRotation("rot1",90,angle,90,90+angle,0,0) );
 671
 672       sprintf(idSlatCh7,"LC%d",3*kNslats4-2+i);
 673       //gMC->Gsvolu(idSlatCh7,"BOX",kSlatMaterial,spar,3);
 674       detElemId = 700 + (i + kNslats4-1-6);
 675       GetEnvelopes(6)->AddEnvelope(idSlatCh7, detElemId, true, TGeoTranslation(-xSlat4, ySlat41, zSlat4 - dzCh4),
 676                                    TGeoRotation("rot2",90,180+angle,90,90+angle,180,0) );
 677
 678       if (i > 0) {
 679         sprintf(idSlatCh7,"LC%d",kNslats4-1-i);
 680         //gMC->Gsvolu(idSlatCh7,"BOX",kSlatMaterial,spar,3);
 681         detElemId = 713 + (i + kNslats4-1-6);
 682         GetEnvelopes(6)->AddEnvelope(idSlatCh7, detElemId, true, TGeoTranslation(xSlat4, -ySlat41, -zSlat4 + dzCh4),
 683                                      TGeoRotation("rot3",90,angle,90,270+angle,180,0) );
 684
 685         sprintf(idSlatCh7,"LC%d",3*kNslats4-2-i);
 686         detElemId = 726 - (i + kNslats4-1-6);
 687         //gMC->Gsvolu(idSlatCh7,"BOX",kSlatMaterial,spar,3);
 688         GetEnvelopes(6)->AddEnvelope(idSlatCh7, detElemId, true,
 689                                      TGeoTranslation(-xSlat4, -ySlat41, zSlat4 - dzCh4),
 690                                      TGeoRotation("rot4",90,180+angle,90,270+angle,0,0) );
 691       }
 692
 693       sprintf(idSlatCh8,"LD%d",kNslats4-1+i);
 694       //gMC->Gsvolu(idSlatCh8,"BOX",kSlatMaterial,spar,3);
 695       detElemId = 813 - (i + kNslats4-1-6);
 696       GetEnvelopes(7)->AddEnvelope(idSlatCh8, detElemId, true, TGeoTranslation(xSlat4, ySlat42, -zSlat4 + dzCh4),
 697                                    TGeoRotation("rot5",90,angle,90,90+angle,0,0) );
 698
 699       sprintf(idSlatCh8,"LD%d",3*kNslats4-2+i);
 700       detElemId = 800 + (i + kNslats4-1-6);
 701       //gMC->Gsvolu(idSlatCh8,"BOX",kSlatMaterial,spar,3);
 702       GetEnvelopes(7)->AddEnvelope(idSlatCh8, detElemId, true, TGeoTranslation(-xSlat4, ySlat42, zSlat4 - dzCh4),
 703                                    TGeoRotation("rot6",90,180+angle,90,90+angle,180,0) );
 704       if (i > 0) {
 705         sprintf(idSlatCh8,"LD%d",kNslats4-1-i);
 706         detElemId = 813 + (i + kNslats4-1-6);
 707         //gMC->Gsvolu(idSlatCh8,"BOX",kSlatMaterial,spar,3);
 708         GetEnvelopes(7)->AddEnvelope(idSlatCh8, detElemId, true, TGeoTranslation(xSlat4, -ySlat42, -zSlat4 + dzCh4),
 709                                      TGeoRotation("rot7",90,angle,90,270+angle,180,0) );
 710         sprintf(idSlatCh8,"LD%d",3*kNslats4-2-i);
 711         detElemId = 826 - (i + kNslats4-1-6);
 712         //gMC->Gsvolu(idSlatCh8,"BOX",kSlatMaterial,spar,3);
 713         GetEnvelopes(7)->AddEnvelope(idSlatCh8, detElemId, true, TGeoTranslation(-xSlat4, -ySlat42, zSlat4 - dzCh4),
 714                                      TGeoRotation("rot8",90,180+angle,90,270+angle,0,0) );
 715       }
 716     }
 717
 718     // create the panel volume
 719
 720     gMC->Gsvolu("S07C","BOX",kCarbonMaterial,panelpar,3);
 721     gMC->Gsvolu("S08C","BOX",kCarbonMaterial,panelpar,3);
 722
 723     // create the nomex volume
 724
 725     gMC->Gsvolu("S07N","BOX",kNomexMaterial,nomexpar,3);
 726     gMC->Gsvolu("S08N","BOX",kNomexMaterial,nomexpar,3);
 727
 728
 729     // create the nomex volume (bulk)
 730
 731     gMC->Gsvolu("S07X","BOX",kNomexBMaterial,nomexbpar,3);
 732     gMC->Gsvolu("S08X","BOX",kNomexBMaterial,nomexbpar,3);
 733
 734     // create the insulating material volume
 735
 736     gMC->Gsvolu("S07I","BOX",kInsuMaterial,insupar,3);
 737     gMC->Gsvolu("S08I","BOX",kInsuMaterial,insupar,3);
 738
 739     // create the PCB volume
 740
 741     gMC->Gsvolu("S07P","BOX",kPcbMaterial,pcbpar,3);
 742     gMC->Gsvolu("S08P","BOX",kPcbMaterial,pcbpar,3);
 743
 744     // create the sensitive volumes,
 745
 746     gMC->Gsvolu("S07G","BOX",kSensMaterial,dum,0);
 747     gMC->Gsvolu("S08G","BOX",kSensMaterial,dum,0);
 748
 749     // create the vertical frame volume
 750
 751     gMC->Gsvolu("S07V","BOX",kVframeMaterial,vFramepar,3);
 752     gMC->Gsvolu("S08V","BOX",kVframeMaterial,vFramepar,3);
 753
 754     // create the horizontal frame volume
 755
 756     gMC->Gsvolu("S07H","BOX",kHframeMaterial,hFramepar,3);
 757     gMC->Gsvolu("S08H","BOX",kHframeMaterial,hFramepar,3);
 758
 759     // create the horizontal border volume
 760
 761     gMC->Gsvolu("S07B","BOX",kBframeMaterial,bFramepar,3);
 762     gMC->Gsvolu("S08B","BOX",kBframeMaterial,bFramepar,3);
 763
 764     index = 0;
 765     for (i = 0; i < kNslats4; i++){
 766       for (Int_t quadrant = 1; quadrant <= 4; quadrant++) {
 767
 768         if (i == 0 && quadrant == 2) continue;
 769         if (i == 0 && quadrant == 4) continue;
 770
 771         sprintf(idSlatCh7,"LC%d",ConvertSlatNum(i,quadrant,kNslats4-1));
 772         sprintf(idSlatCh8,"LD%d",ConvertSlatNum(i,quadrant,kNslats4-1));
 773         Float_t xvFrame  = (slatLength4[i] - kVframeLength)/2.;
 774
 775         // position the vertical frames
 776         if (i != 1) {
 777           GetEnvelopes(6)->AddEnvelopeConstituent("S07V", idSlatCh7, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 778           GetEnvelopes(6)->AddEnvelopeConstituent("S07V", idSlatCh7, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 779           GetEnvelopes(7)->AddEnvelopeConstituent("S08V", idSlatCh8, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 780           GetEnvelopes(7)->AddEnvelopeConstituent("S08V", idSlatCh8, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 781         } else { // no rounded spacer yet
 782           GetEnvelopes(6)->AddEnvelopeConstituent("S07V", idSlatCh7, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 783           // GetEnvelopes(6)->AddEnvelopeConstituent("S07V", idSlatCh7, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 784           GetEnvelopes(7)->AddEnvelopeConstituent("S08V", idSlatCh8, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 785           // GetEnvelopes(7)->AddEnvelopeConstituent("S08V", idSlatCh8, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 786         }
 787         // position the panels and the insulating material
 788         for (j = 0; j < kNPCB4[i]; j++){
 789           if (i == 1 && j == 0) continue;
 790           index++;
 791           Float_t xx = kSensLength * (-kNPCB4[i]/2.+j+.5);
 792
 793           Float_t zPanel = spar[2] - nomexbpar[2];
 794           GetEnvelopes(6)->AddEnvelopeConstituent("S07X", idSlatCh7, 2*index-1,TGeoTranslation(xx,0.,zPanel));
 795           GetEnvelopes(6)->AddEnvelopeConstituent("S07X", idSlatCh7, 2*index,TGeoTranslation(xx,0.,-zPanel));
 796           GetEnvelopes(6)->AddEnvelopeConstituent("S07I", idSlatCh7, index,TGeoTranslation(xx,0.,0.));
 797           GetEnvelopes(7)->AddEnvelopeConstituent("S08X", idSlatCh8, 2*index-1,TGeoTranslation(xx,0.,zPanel));
 798           GetEnvelopes(7)->AddEnvelopeConstituent("S08X", idSlatCh8, 2*index,TGeoTranslation(xx,0.,-zPanel));
 799           GetEnvelopes(7)->AddEnvelopeConstituent("S08I", idSlatCh8, index,TGeoTranslation(xx,0.,0.));
 800         }
 801       }
 802     }
 803
 804     // position the nomex volume inside the panel volume
 805     gMC->Gspos("S07N",1,"S07C",0.,0.,0.,0,"ONLY");
 806     gMC->Gspos("S08N",1,"S08C",0.,0.,0.,0,"ONLY");
 807
 808     // position panel volume inside the bulk nomex material volume
 809     gMC->Gspos("S07C",1,"S07X",0.,0.,kNomexBWidth/2.,0,"ONLY");
 810     gMC->Gspos("S08C",1,"S08X",0.,0.,kNomexBWidth/2.,0,"ONLY");
 811
 812     // position the PCB volume inside the insulating material volume
 813     gMC->Gspos("S07P",1,"S07I",0.,0.,0.,0,"ONLY");
 814     gMC->Gspos("S08P",1,"S08I",0.,0.,0.,0,"ONLY");
 815
 816     // position the horizontal frame volume inside the PCB volume
 817     gMC->Gspos("S07H",1,"S07P",0.,0.,0.,0,"ONLY");
 818     gMC->Gspos("S08H",1,"S08P",0.,0.,0.,0,"ONLY");
 819
 820     // position the sensitive volume inside the horizontal frame volume
 821     gMC->Gsposp("S07G",1,"S07H",0.,0.,0.,0,"ONLY",senspar,3);
 822     gMC->Gsposp("S08G",1,"S08H",0.,0.,0.,0,"ONLY",senspar,3);
 823
 824     // position the border volumes inside the PCB volume
 825     Float_t yborder = ( kPcbHeight - kBframeHeight ) / 2.;
 826     gMC->Gspos("S07B",1,"S07P",0., yborder,0.,0,"ONLY");
 827     gMC->Gspos("S07B",2,"S07P",0.,-yborder,0.,0,"ONLY");
 828     gMC->Gspos("S08B",1,"S08P",0., yborder,0.,0,"ONLY");
 829     gMC->Gspos("S08B",2,"S08P",0.,-yborder,0.,0,"ONLY");
 830
 831     // create the NULOC volume and position it in the horizontal frame
 832
 833     gMC->Gsvolu("S07E","BOX",kNulocMaterial,nulocpar,3);
 834     gMC->Gsvolu("S08E","BOX",kNulocMaterial,nulocpar,3);
 835     index = 0;
 836     for (xx = -xxmax; xx <= xxmax; xx += 2*kNulocLength) {
 837       index++;
 838       gMC->Gspos("S07E",2*index-1,"S07B", xx, 0.,-kBframeWidth/2. + kNulocWidth/2, 0, "ONLY");
 839       gMC->Gspos("S07E",2*index  ,"S07B", xx, 0., kBframeWidth/2. - kNulocWidth/2, 0, "ONLY");
 840       gMC->Gspos("S08E",2*index-1,"S08B", xx, 0.,-kBframeWidth/2. + kNulocWidth/2, 0, "ONLY");
 841       gMC->Gspos("S08E",2*index  ,"S08B", xx, 0., kBframeWidth/2. - kNulocWidth/2, 0, "ONLY");
 842     }
 843
 844     // position the volumes approximating the circular section of the pipe
 845
 846     Float_t epsilon = 0.001;
 847     Int_t ndiv = 10;
 848     Int_t imax = 1;
 849     Double_t divpar[3];
 850     Double_t dydiv = kSensHeight/ndiv;
 851     Double_t ydiv  = (kSensHeight - dydiv)/2.;
 852     Float_t rmin   = AliMUONConstants::Rmin(3); // Same radius for both chamber of St4
 853     Float_t xdiv   = 0.;
 854     Float_t xvol;
 855     Float_t yvol;
 856
 857     for (Int_t idiv = 0; idiv < ndiv; idiv++){
 858       ydiv += dydiv;
 859       xdiv = 0.;
 860       if (ydiv < rmin) xdiv = rmin * TMath::Sin( TMath::ACos((ydiv-dydiv/2.)/rmin) );
 861       divpar[0] = (kPcbLength - xdiv)/2.;
 862       divpar[1] = dydiv/2. - epsilon;
 863       divpar[2] = kSensWidth/2.;
 864       xvol = (kPcbLength + xdiv)/2.;
 865       yvol = ydiv ;
 866
 867       for (Int_t quadrant = 1; quadrant <= 4; quadrant++) {
 868         sprintf(idSlatCh7,"LC%d",ConvertSlatNum(1,quadrant,kNslats4-1));
 869         sprintf(idSlatCh8,"LD%d",ConvertSlatNum(1,quadrant,kNslats4-1));
 870
 871         GetEnvelopes(6)->AddEnvelopeConstituentParam("S07G",idSlatCh7, quadrant*100+imax+4*idiv+1,
 872                                                      TGeoTranslation(xvol-kPcbLength * kNPCB4[1]/2.,yvol-kPcbLength,0.),3,divpar);
 873
 874         GetEnvelopes(7)->AddEnvelopeConstituentParam("S08G", idSlatCh8, quadrant*100+imax+4*idiv+1,
 875                                                      TGeoTranslation(xvol-kPcbLength * kNPCB4[1]/2.,yvol-kPcbLength,0.),3,divpar);
 876       }
 877     }
 878     // cout << "Geometry for Station 4...... done" << endl;
 879
 880   }
 881
 882   if (fStations[4]) {
 883
 884
 885     // //********************************************************************
 886     // //                            Station 5                             **
 887     // //********************************************************************
 888     //      // indices 1 and 2 for first and second chambers in the station
 889     //      // iChamber (first chamber) kept for other quanties than Z,
 890     //      // assumed to be the same in both chambers
 891     //      corrected geometry (JP. Cussonneau, Ch. Finck)
 892
 893     iChamber = &fMUON->Chamber(8);
 894     iChamber1 = iChamber;
 895     iChamber2 = &fMUON->Chamber(9);
 896
 897     const Int_t   kNslats5         = 7;  // number of slats per quadrant
 898     const Int_t   kNPCB5[kNslats5] = {5, 6, 6, 6, 5, 4, 3}; // n PCB per slat
 899     const Float_t kXpos5[kNslats5] = {38.2, 0., 0., 0., 0., 0., 0.};
 900     const Float_t kYpos5[kNslats5] = {0., 38.2, 37.9, 37.6, 37.3, 37.05, 36.75};
 901     Float_t slatLength5[kNslats5];
 902
 903     // Mother volume for each chamber
 904     // Outer excess and inner recess for mother volume radius
 905     // with respect to ROuter and RInner
 906     Float_t dMotherInner =  AliMUONConstants::Rmin(4)-kRframeHeight;
 907     // 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
 908     Float_t dMotherOutner= AliMUONConstants::Rmax(4)+kVframeLength + 40.0;
 909     Float_t tpar[3];
 910     Double_t dstation =  ( (-AliMUONConstants::DefaultChamberZ(9)) -
 911                            (-AliMUONConstants::DefaultChamberZ(8)) ) /2.3;
 912     tpar[0] = dMotherInner;
 913     tpar[1] = dMotherOutner;
 914     tpar[2] = dstation;
 915     gMC->Gsvolu("CH09", "TUBE", idAir, tpar, 3);
 916     gMC->Gsvolu("CH10", "TUBE", idAir, tpar, 3);
 917
 918     // create and position the slat (mother) volumes
 919
 920     char idSlatCh9[5];
 921     char idSlatCh10[5];
 922     Float_t xSlat5;
 923     Float_t ySlat5 = 0;
 924     angle = 0.;
 925
 926     for (i = 0; i < kNslats5; i++){
 927
 928       slatLength5[i] = kPcbLength * kNPCB5[i] + 2.* kVframeLength;
 929       xSlat5 = slatLength5[i]/2. + kDslatLength + kXpos5[i];
 930       ySlat5 += kYpos5[i];
 931
 932       spar[0] = slatLength5[i]/2.;
 933       spar[1] = kSlatHeight/2.;
 934       spar[2] = kSlatWidth/2.;
 935
 936       Float_t dzCh5  = dzCh;
 937       Float_t zSlat5 = (i%2 ==0)? -zSlat : zSlat;
 938
 939       sprintf(idSlatCh9,"LE%d",kNslats5-1+i);
 940       detElemId = 913 - (i + kNslats5-1-6);
 941       //gMC->Gsvolu(idSlatCh9,"BOX",kSlatMaterial,spar,3);
 942       GetEnvelopes(8)->AddEnvelope(idSlatCh9, detElemId, true, TGeoTranslation(xSlat5, ySlat5, -zSlat5 + dzCh5),
 943                                    TGeoRotation("rot1",90,angle,90,90+angle,0,0) );
 944
 945       sprintf(idSlatCh9,"LE%d",3*kNslats5-2+i);
 946       detElemId = 900 + (i + kNslats5-1-6);
 947       //gMC->Gsvolu(idSlatCh9,"BOX",kSlatMaterial,spar,3);
 948       GetEnvelopes(8)->AddEnvelope(idSlatCh9, detElemId, true, TGeoTranslation(-xSlat5, ySlat5, zSlat5 - dzCh5),
 949                                    TGeoRotation("rot2",90,180+angle,90,90+angle,180,0) );
 950
 951       if (i > 0) {
 952         sprintf(idSlatCh9,"LE%d",kNslats5-1-i);
 953         detElemId = 913 + (i + kNslats5-1-6);
 954         //gMC->Gsvolu(idSlatCh9,"BOX",kSlatMaterial,spar,3);
 955         GetEnvelopes(8)->AddEnvelope(idSlatCh9, detElemId, true, TGeoTranslation(xSlat5, -ySlat5, -zSlat5 + dzCh5),
 956                                      TGeoRotation("rot3",90,angle,90,270+angle,180,0) );
 957
 958         sprintf(idSlatCh9,"LE%d",3*kNslats5-2-i);
 959         detElemId = 926 - (i + kNslats5-1-6);
 960         //gMC->Gsvolu(idSlatCh9,"BOX",kSlatMaterial,spar,3);
 961         GetEnvelopes(8)->AddEnvelope(idSlatCh9, detElemId, true, TGeoTranslation(-xSlat5, -ySlat5, zSlat5 - dzCh5),
 962                                      TGeoRotation("rot4",90,180+angle,90,270+angle,0,0)  );
 963       }
 964
 965       sprintf(idSlatCh10,"LF%d",kNslats5-1+i);
 966       detElemId = 1013 - (i + kNslats5-1-6);
 967       //gMC->Gsvolu(idSlatCh10,"BOX",kSlatMaterial,spar,3);
 968       GetEnvelopes(9)->AddEnvelope(idSlatCh10, detElemId, true, TGeoTranslation(xSlat5, ySlat5, -zSlat5 + dzCh5),
 969                                    TGeoRotation("rot5",90,angle,90,90+angle,0,0) );
 970
 971       sprintf(idSlatCh10,"LF%d",3*kNslats5-2+i);
 972       detElemId = 1000 + (i + kNslats5-1-6);
 973       //gMC->Gsvolu(idSlatCh10,"BOX",kSlatMaterial,spar,3);
 974       GetEnvelopes(9)->AddEnvelope(idSlatCh10, detElemId, true, TGeoTranslation(-xSlat5, ySlat5, zSlat5 - dzCh5),
 975                                    TGeoRotation("rot6",90,180+angle,90,90+angle,180,0) );
 976
 977       if (i > 0) {
 978         sprintf(idSlatCh10,"LF%d",kNslats5-1-i);
 979         detElemId = 1013 + (i + kNslats5-1-6);
 980         //gMC->Gsvolu(idSlatCh10,"BOX",kSlatMaterial,spar,3);
 981         GetEnvelopes(9)->AddEnvelope(idSlatCh10, detElemId, true, TGeoTranslation(xSlat5, -ySlat5, -zSlat5 + dzCh5),
 982                                      TGeoRotation("rot7",90,angle,90,270+angle,180,0) );
 983         sprintf(idSlatCh10,"LF%d",3*kNslats5-2-i);
 984         detElemId = 1026 - (i + kNslats5-1-6);
 985         //gMC->Gsvolu(idSlatCh10,"BOX",kSlatMaterial,spar,3);
 986         GetEnvelopes(9)->AddEnvelope(idSlatCh10, detElemId, true, TGeoTranslation(-xSlat5, -ySlat5, zSlat5 - dzCh5),
 987                                      TGeoRotation("rot8",90,180+angle,90,270+angle,0,0) );
 988       }
 989     }
 990
 991     // create the panel volume
 992
 993     gMC->Gsvolu("S09C","BOX",kCarbonMaterial,panelpar,3);
 994     gMC->Gsvolu("S10C","BOX",kCarbonMaterial,panelpar,3);
 995
 996     // create the nomex volume
 997
 998     gMC->Gsvolu("S09N","BOX",kNomexMaterial,nomexpar,3);
 999     gMC->Gsvolu("S10N","BOX",kNomexMaterial,nomexpar,3);
1000
1001
1002     // create the nomex volume (bulk)
1003
1004     gMC->Gsvolu("S09X","BOX",kNomexBMaterial,nomexbpar,3);
1005     gMC->Gsvolu("S10X","BOX",kNomexBMaterial,nomexbpar,3);
1006
1007     // create the insulating material volume
1008
1009     gMC->Gsvolu("S09I","BOX",kInsuMaterial,insupar,3);
1010     gMC->Gsvolu("S10I","BOX",kInsuMaterial,insupar,3);
1011
1012     // create the PCB volume
1013
1014     gMC->Gsvolu("S09P","BOX",kPcbMaterial,pcbpar,3);
1015     gMC->Gsvolu("S10P","BOX",kPcbMaterial,pcbpar,3);
1016
1017     // create the sensitive volumes,
1018
1019     gMC->Gsvolu("S09G","BOX",kSensMaterial,dum,0);
1020     gMC->Gsvolu("S10G","BOX",kSensMaterial,dum,0);
1021
1022     // create the vertical frame volume
1023
1024     gMC->Gsvolu("S09V","BOX",kVframeMaterial,vFramepar,3);
1025     gMC->Gsvolu("S10V","BOX",kVframeMaterial,vFramepar,3);
1026
1027     // create the horizontal frame volume
1028
1029     gMC->Gsvolu("S09H","BOX",kHframeMaterial,hFramepar,3);
1030     gMC->Gsvolu("S10H","BOX",kHframeMaterial,hFramepar,3);
1031
1032     // create the horizontal border volume
1033
1034     gMC->Gsvolu("S09B","BOX",kBframeMaterial,bFramepar,3);
1035     gMC->Gsvolu("S10B","BOX",kBframeMaterial,bFramepar,3);
1036
1037     index = 0;
1038     for (i = 0; i < kNslats5; i++){
1039       for (Int_t quadrant = 1; quadrant <= 4; quadrant++) {
1040
1041         if (i == 0 && quadrant == 2) continue;
1042         if (i == 0 && quadrant == 4) continue;
1043
1044         sprintf(idSlatCh9,"LE%d",ConvertSlatNum(i,quadrant,kNslats5-1));
1045         sprintf(idSlatCh10,"LF%d",ConvertSlatNum(i,quadrant,kNslats5-1));
1046         Float_t xvFrame  = (slatLength5[i] - kVframeLength)/2.; // ok
1047
1048         // position the vertical frames (spacers)
1049         if (i != 1) {
1050           GetEnvelopes(8)->AddEnvelopeConstituent("S09V", idSlatCh9, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
1051           GetEnvelopes(8)->AddEnvelopeConstituent("S09V", idSlatCh9, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
1052           GetEnvelopes(9)->AddEnvelopeConstituent("S10V", idSlatCh10, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
1053           GetEnvelopes(9)->AddEnvelopeConstituent("S10V", idSlatCh10, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
1054         } else {  // no rounded spacer yet
1055           GetEnvelopes(8)->AddEnvelopeConstituent("S09V", idSlatCh9, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
1056           //       GetEnvelopes(8)->AddEnvelopeConstituent("S09V", idSlatCh9, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
1057           GetEnvelopes(9)->AddEnvelopeConstituent("S10V", idSlatCh10, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
1058           //       GetEnvelopes(9)->AddEnvelopeConstituent("S10V", idSlatCh10, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
1059         }
1060
1061         // position the panels and the insulating material
1062         for (j = 0; j < kNPCB5[i]; j++){
1063           if (i == 1 && j == 0) continue;
1064           index++;
1065           Float_t xx = kSensLength * (-kNPCB5[i]/2.+j+.5);
1066
1067           Float_t zPanel = spar[2] - nomexbpar[2];
1068           GetEnvelopes(8)->AddEnvelopeConstituent("S09X", idSlatCh9, 2*index-1,TGeoTranslation(xx,0.,zPanel));
1069           GetEnvelopes(8)->AddEnvelopeConstituent("S09X", idSlatCh9, 2*index,TGeoTranslation(xx,0.,-zPanel));
1070           GetEnvelopes(8)->AddEnvelopeConstituent("S09I", idSlatCh9, index,TGeoTranslation(xx,0.,0.));
1071
1072           GetEnvelopes(9)->AddEnvelopeConstituent("S10X", idSlatCh10, 2*index-1,TGeoTranslation(xx,0.,zPanel));
1073           GetEnvelopes(9)->AddEnvelopeConstituent("S10X", idSlatCh10, 2*index,TGeoTranslation(xx,0.,-zPanel));
1074           GetEnvelopes(9)->AddEnvelopeConstituent("S10I", idSlatCh10, index,TGeoTranslation(xx,0.,0.));
1075         }
1076       }
1077     }
1078
1079     // position the nomex volume inside the panel volume
1080     gMC->Gspos("S09N",1,"S09C",0.,0.,0.,0,"ONLY");
1081     gMC->Gspos("S10N",1,"S10C",0.,0.,0.,0,"ONLY");
1082
1083     // position panel  volume inside the bulk nomex material volume
1084     gMC->Gspos("S09C",1,"S09X",0.,0.,kNomexBWidth/2.,0,"ONLY");
1085     gMC->Gspos("S10C",1,"S10X",0.,0.,kNomexBWidth/2.,0,"ONLY");
1086
1087     // position the PCB volume inside the insulating material volume
1088     gMC->Gspos("S09P",1,"S09I",0.,0.,0.,0,"ONLY");
1089     gMC->Gspos("S10P",1,"S10I",0.,0.,0.,0,"ONLY");
1090
1091     // position the horizontal frame volume inside the PCB volume
1092     gMC->Gspos("S09H",1,"S09P",0.,0.,0.,0,"ONLY");
1093     gMC->Gspos("S10H",1,"S10P",0.,0.,0.,0,"ONLY");
1094
1095     // position the sensitive volume inside the horizontal frame volume
1096     gMC->Gsposp("S09G",1,"S09H",0.,0.,0.,0,"ONLY",senspar,3);
1097     gMC->Gsposp("S10G",1,"S10H",0.,0.,0.,0,"ONLY",senspar,3);
1098
1099     // position the border volumes inside the PCB volume
1100     Float_t yborder = ( kPcbHeight - kBframeHeight ) / 2.;
1101     gMC->Gspos("S09B",1,"S09P",0., yborder,0.,0,"ONLY");
1102     gMC->Gspos("S09B",2,"S09P",0.,-yborder,0.,0,"ONLY");
1103     gMC->Gspos("S10B",1,"S10P",0., yborder,0.,0,"ONLY");
1104     gMC->Gspos("S10B",2,"S10P",0.,-yborder,0.,0,"ONLY");
1105
1106     //      // create the NULOC volume and position it in the horizontal frame
1107
1108     gMC->Gsvolu("S09E","BOX",kNulocMaterial,nulocpar,3);
1109     gMC->Gsvolu("S10E","BOX",kNulocMaterial,nulocpar,3);
1110     index = 0;
1111     for (xx = -xxmax; xx <= xxmax; xx += 2*kNulocLength) {
1112       index++;
1113       gMC->Gspos("S09E",2*index-1,"S09B", xx, 0.,-kBframeWidth/2. + kNulocWidth/2, 0, "ONLY");
1114       gMC->Gspos("S09E",2*index  ,"S09B", xx, 0., kBframeWidth/2. - kNulocWidth/2, 0, "ONLY");
1115       gMC->Gspos("S10E",2*index-1,"S10B", xx, 0.,-kBframeWidth/2. + kNulocWidth/2, 0, "ONLY");
1116       gMC->Gspos("S10E",2*index  ,"S10B", xx, 0., kBframeWidth/2. - kNulocWidth/2, 0, "ONLY");
1117     }
1118
1119
1120     // position the volumes approximating the circular section of the pipe
1121     Float_t epsilon = 0.001;
1122     Int_t ndiv = 10;
1123     Int_t imax = 1;
1124     Double_t divpar[3];
1125     Double_t dydiv = kSensHeight/ndiv;
1126     Double_t ydiv  = (kSensHeight - dydiv)/2.;
1127     Float_t rmin   = AliMUONConstants::Rmin(4);
1128     Float_t xdiv   = 0.;
1129     Float_t xvol;
1130     Float_t yvol;
1131
1132     for (Int_t idiv = 0; idiv < ndiv; idiv++){
1133       ydiv += dydiv;
1134       xdiv = 0.;
1135       if (ydiv < rmin) xdiv = rmin * TMath::Sin( TMath::ACos((ydiv-dydiv/2.)/rmin) );
1136       divpar[0] = (kPcbLength - xdiv)/2.;
1137       divpar[1] = dydiv/2. - epsilon;
1138       divpar[2] = kSensWidth/2.;
1139       xvol = (kPcbLength + xdiv)/2.;
1140       yvol = ydiv;
1141
1142       for (Int_t quadrant = 1; quadrant <= 4; quadrant++) {
1143         sprintf(idSlatCh9,"LE%d",ConvertSlatNum(1,quadrant,kNslats5-1));
1144         sprintf(idSlatCh10,"LF%d",ConvertSlatNum(1,quadrant,kNslats5-1));
1145
1146         GetEnvelopes(8)->AddEnvelopeConstituentParam("S09G", idSlatCh9, quadrant*100+imax+4*idiv+1,
1147                                                      TGeoTranslation(xvol-kPcbLength * kNPCB5[1]/2.,yvol-kPcbLength,0.),3,divpar);
1148         GetEnvelopes(9)->AddEnvelopeConstituentParam("S10G", idSlatCh10,  quadrant*100+imax+4*idiv+1,
1149                                                      TGeoTranslation(xvol-kPcbLength * kNPCB5[1]/2.,yvol-kPcbLength,0.),3,divpar);
1150       }
1151     }
1152     // cout << "Geometry for Station 5...... done" << endl;
1153
1154   }
1155 }
1156
1157
1158 //______________________________________________________________________________
1159 void AliMUONSlatGeometryBuilder::SetTransformations()
1160 {
1161 // Defines the transformations for the station345 chambers.
1162 // ---
1163
1164   if (gAlice->GetModule("DIPO")) {
1165     // if DIPO is preset, the whole station will be placed in DDIP volume
1166     SetMotherVolume(4, "DDIP");
1167     SetMotherVolume(5, "DDIP");
1168     SetVolume(4, "CH05", true);
1169     SetVolume(5, "CH06", true);
1170   }
1171   else {
1172     SetVolume(4, "CH05");
1173     SetVolume(5, "CH06");
1174   }
1175
1176   if (gAlice->GetModule("SHIL")) {
1177     SetMotherVolume(6, "YOUT2");
1178     SetMotherVolume(7, "YOUT2");
1179     SetMotherVolume(8, "YOUT2");
1180     SetMotherVolume(9, "YOUT2");
1181   }
1182
1183   SetVolume(6, "CH07");
1184   SetVolume(7, "CH08");
1185   SetVolume(8, "CH09");
1186   SetVolume(9, "CH10");
1187
1188 // Stations 345 are not perpendicular to the beam axis
1189 // See AliMUONConstants class
1190   TGeoRotation st345inclination("rot99");
1191   st345inclination.RotateX(AliMUONConstants::St345Inclination());
1192
1193   Double_t zpos1= - AliMUONConstants::DefaultChamberZ(4);
1194   SetTransformation(4, TGeoTranslation(0., 0., zpos1), st345inclination);
1195
1196   zpos1= - AliMUONConstants::DefaultChamberZ(5);
1197   SetTransformation(5, TGeoTranslation(0., 0., zpos1), st345inclination);
1198
1199   zpos1 = - AliMUONConstants::DefaultChamberZ(6);
1200   SetTransformation(6, TGeoTranslation(0., 0., zpos1), st345inclination);
1201
1202   zpos1 = - AliMUONConstants::DefaultChamberZ(7);
1203   SetTransformation(7, TGeoTranslation(0., 0., zpos1), st345inclination );
1204
1205   zpos1 = - AliMUONConstants::DefaultChamberZ(8);
1206   SetTransformation(8, TGeoTranslation(0., 0., zpos1), st345inclination);
1207
1208   zpos1 = - AliMUONConstants::DefaultChamberZ(9);
1209   SetTransformation(9, TGeoTranslation(0., 0., zpos1), st345inclination);
1210
1211 }
1212
1213 //______________________________________________________________________________
1214 void AliMUONSlatGeometryBuilder::SetSensitiveVolumes()
1215 {
1216 // Defines the sensitive volumes for slat stations chambers.
1217 // ---
1218
1219   GetGeometry(4)->SetSensitiveVolume("S05G");
1220   GetGeometry(5)->SetSensitiveVolume("S06G");
1221   GetGeometry(6)->SetSensitiveVolume("S07G");
1222   GetGeometry(7)->SetSensitiveVolume("S08G");
1223   GetGeometry(8)->SetSensitiveVolume("S09G");
1224   GetGeometry(9)->SetSensitiveVolume("S10G");
1225 }
1226
1227 //______________________________________________________________________________
1228 Int_t  AliMUONSlatGeometryBuilder::ConvertSlatNum(Int_t numslat, Int_t quadnum, Int_t fspq) const
1229 {
1230 // On-line function establishing the correspondance between numslat (the slat number on a particular quadrant (numslat->0....4 for St3))
1231 // and slatnum (the slat number on the whole panel (slatnum->1...18 for St3)
1232   numslat += 1;
1233   if (quadnum==2 || quadnum==3)
1234     numslat += fspq;
1235   else
1236     numslat = fspq + 2-numslat;
1237   numslat -= 1;
1238
1239   if (quadnum==3 || quadnum==4) numslat += 2*fspq+1;
1240
1241   return numslat;
1242 }