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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  15
  16 // $Id$
  17 //
  18 // Class AliMUONSlatGeometryBuilder
  19 // -------------------------------
  20 // Abstract base class for geometry construction per chamber.
  21 //
  22 // Author: Eric Dumonteil (dumontei@cea.fr)
  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 "AliMUONChamber.h"
  45 #include "AliMUONGeometryModule.h"
  46 #include "AliMUONGeometryEnvelopeStore.h"
  47 #include "AliMUONConstants.h"
  48
  49 ClassImp(AliMUONSlatGeometryBuilder)
  50
  51
  52 //______________________________________________________________________________
  53 AliMUONSlatGeometryBuilder::AliMUONSlatGeometryBuilder(AliMUON* muon)
  54  : AliMUONVGeometryBuilder("slat.dat",
  55                            muon->Chamber(4).GetGeometry(),
  56                            muon->Chamber(5).GetGeometry(),
  57                            muon->Chamber(6).GetGeometry(),
  58                            muon->Chamber(7).GetGeometry(),
  59                            muon->Chamber(8).GetGeometry(),
  60                            muon->Chamber(9).GetGeometry()),
  61    fMUON(muon)
  62 {
  63 // Standard constructor
  64
  65 }
  66
  67 //______________________________________________________________________________
  68 AliMUONSlatGeometryBuilder::AliMUONSlatGeometryBuilder()
  69  : AliMUONVGeometryBuilder(),
  70    fMUON(0)
  71 {
  72 // Default constructor
  73 }
  74
  75
  76 //______________________________________________________________________________
  77 AliMUONSlatGeometryBuilder::AliMUONSlatGeometryBuilder(const AliMUONSlatGeometryBuilder& rhs)
  78   : AliMUONVGeometryBuilder(rhs)
  79 {
  80   AliFatal("Copy constructor is not implemented.");
  81 }
  82
  83 //______________________________________________________________________________
  84 AliMUONSlatGeometryBuilder::~AliMUONSlatGeometryBuilder() {
  85 //
  86 }
  87
  88 //______________________________________________________________________________
  89 AliMUONSlatGeometryBuilder&
  90 AliMUONSlatGeometryBuilder::operator = (const AliMUONSlatGeometryBuilder& rhs)
  91 {
  92   // check assignement to self
  93   if (this == &rhs) return *this;
  94
  95   AliFatal("Assignment operator is not implemented.");
  96
  97   return *this;
  98 }
  99
 100 //
 101 // public methods
 102 //
 103
 104 //______________________________________________________________________________
 105 void AliMUONSlatGeometryBuilder::CreateGeometry()
 106 {
 107   // CreateGeometry is the method containing all the informations concerning Stations 345 geometry.
 108   // It includes description and placements of support panels and slats.
 109   // The code comes directly from what was written in AliMUONv1.cxx before, with modifications concerning
 110   // the use of Enveloppe method to place the Geant volumes.
 111   // Now, few changes would allow the creation of a Slat methode where slat could be described by few parameters,
 112   // and this builder would then be dedicated only to the
 113   // placements of the slats. Those modifications could shorten the Station 345 geometry by a non-negligeable factor...
 114
 115   Int_t *idtmed = fMUON->GetIdtmed()->GetArray()-1099;
 116
 117   Float_t angle;
 118   Float_t *dum=0;
 119
 120   // define the id of tracking media:
 121   Int_t idAir    = idtmed[1100]; // medium 1
 122   Int_t idGas    = idtmed[1108]; // medium 9 = Ar-CO2 gas (80%+20%)
 123   Int_t idCopper = idtmed[1110];
 124   Int_t idG10    = idtmed[1111];
 125   Int_t idCarbon = idtmed[1112];
 126   Int_t idRoha   = idtmed[1113];
 127   Int_t idNomex  = idtmed[1114]; // honey comb
 128   Int_t idNoryl  = idtmed[1115];
 129   Int_t idNomexB = idtmed[1116]; // bulk material
 130
 131   // sensitive area: 40*40 cm**2
 132   const Float_t kSensLength = 40.;
 133   const Float_t kSensHeight = 40.;
 134   const Float_t kSensWidth  = AliMUONConstants::Pitch()*2;// 0.5 cm, according to TDR fig 2.120
 135   const Int_t kSensMaterial = idGas;
 136   //     const Float_t kYoverlap   = 1.5;
 137
 138   // PCB dimensions in cm; width: 30 mum copper
 139   const Float_t kPcbLength  = kSensLength;
 140   const Float_t kPcbHeight  = 58.; // updated Ch. Finck
 141   const Float_t kPcbWidth   = 0.003;
 142   const Int_t kPcbMaterial  = idCopper;
 143
 144   // Insulating material: 220 mum G10 fiber  glued to pcb
 145   const Float_t kInsuLength = kPcbLength;
 146   const Float_t kInsuHeight = kPcbHeight;
 147   const Float_t kInsuWidth  = 0.022;  // updated Ch. Finck
 148   const Int_t kInsuMaterial = idG10;
 149
 150   // Carbon fiber panels: 200mum carbon/epoxy skin
 151   const Float_t kCarbonWidth  = 0.020;
 152   const Int_t kCarbonMaterial = idCarbon;
 153
 154   // Nomex (honey comb) between the two panel carbon skins
 155   const Float_t kNomexLength = kSensLength;
 156   const Float_t kNomexHeight = kSensHeight;
 157   const Float_t kNomexWidth  = 0.8; // updated Ch. Finck
 158   const Int_t kNomexMaterial = idNomex;
 159
 160   // Bulk Nomex under panel sandwich Ch. Finck
 161   const Float_t kNomexBWidth  = 0.025;
 162   const Int_t kNomexBMaterial = idNomexB;
 163
 164   // Panel sandwich 0.02 carbon*2 + 0.8 nomex
 165   const Float_t kPanelLength = kSensLength;
 166   const Float_t kPanelHeight = kSensHeight;
 167   const Float_t kPanelWidth  = 2 * kCarbonWidth + kNomexWidth;
 168
 169   // spacer around the slat: 2 sticks along length,2 along height
 170   // H: the horizontal ones
 171   const Float_t kHframeLength = kPcbLength;
 172   const Float_t kHframeHeight = 1.95; // updated Ch. Finck
 173   const Float_t kHframeWidth  = kSensWidth;
 174   const Int_t kHframeMaterial = idNoryl;
 175
 176   // V: the vertical ones; vertical spacers
 177   const Float_t kVframeLength = 2.5;
 178   const Float_t kVframeHeight = kSensHeight + kHframeHeight;
 179   const Float_t kVframeWidth  = kSensWidth;
 180   const Int_t kVframeMaterial = idNoryl;
 181
 182   // B: the horizontal border filled with rohacell: ok Ch. Finck
 183   const Float_t kBframeLength = kHframeLength;
 184   const Float_t kBframeHeight = (kPcbHeight - kSensHeight)/2. - kHframeHeight;
 185   const Float_t kBframeWidth  = kHframeWidth;
 186   const Int_t kBframeMaterial = idRoha;
 187
 188   // NULOC: 30 mum copper + 200 mum vetronite (same radiation length as 14mum copper) for electronics
 189   const Float_t kNulocLength   = 2.5;
 190   const Float_t kNulocHeight   = kBframeHeight;
 191   const Float_t kNulocWidth    = 0.0030 + 0.0014; // equivalent copper width of vetronite;
 192   const Int_t   kNulocMaterial = idCopper;
 193
 194   // Slat parameters
 195   const Float_t kSlatHeight = kPcbHeight;
 196   const Float_t kSlatWidth  = kSensWidth + 2.*(kPcbWidth + kInsuWidth + kPanelWidth
 197                                                + kNomexBWidth); //replaced rohacell with Nomex Ch. Finck
 198   const Int_t   kSlatMaterial = idAir;
 199   const Float_t kDslatLength  = -1.25; // position of the slat respect to the beam plane (half vertical spacer) Ch. Finck
 200   Float_t zSlat               = AliMUONConstants::DzSlat();// implemented Ch. Finck
 201   Float_t dzCh                = AliMUONConstants::DzCh();
 202
 203   Float_t spar[3];
 204   Int_t i, j;
 205   Int_t detElemId;
 206
 207   // the panel volume contains the nomex
 208   Float_t panelpar[3] = { kPanelLength/2., kPanelHeight/2., kPanelWidth/2. };
 209   Float_t nomexpar[3] = { kNomexLength/2., kNomexHeight/2., kNomexWidth/2. };
 210   Float_t twidth =  kPanelWidth +  kNomexBWidth;
 211   Float_t nomexbpar[3] = {kNomexLength/2., kNomexHeight/2.,twidth/2. };// bulk nomex
 212
 213   // insulating material contains PCB-> gas
 214   twidth = 2*(kInsuWidth + kPcbWidth) + kSensWidth ;
 215   Float_t insupar[3] = {kInsuLength/2., kInsuHeight/2., twidth/2. };
 216   twidth -= 2 * kInsuWidth;
 217   Float_t pcbpar[3]  = {kPcbLength/2., kPcbHeight/2., twidth/2. };
 218   Float_t senspar[3] = {kSensLength/2., kSensHeight/2., kSensWidth/2. };
 219   Float_t theight    = 2 * kHframeHeight + kSensHeight;
 220   Float_t hFramepar[3] = {kHframeLength/2., theight/2., kHframeWidth/2.};
 221   Float_t bFramepar[3] = {kBframeLength/2., kBframeHeight/2., kBframeWidth/2.};
 222   Float_t vFramepar[3] = {kVframeLength/2., kVframeHeight/2., kVframeWidth/2.};
 223   Float_t nulocpar[3]  = {kNulocLength/2.,  kNulocHeight/2.,  kNulocWidth/2.};
 224
 225   Float_t xx;
 226   Float_t xxmax = (kBframeLength - kNulocLength)/2.;
 227   Int_t index=0;
 228
 229   AliMUONChamber *iChamber, *iChamber1, *iChamber2;
 230
 231   Int_t* fStations = new Int_t[5];
 232   for (Int_t i=0; i<5; i++) fStations[i] = 1;
 233   fStations[2] = 1;
 234
 235   if (fStations[2])
 236     {
 237       //********************************************************************
 238       //                            Station 3                             **
 239       //********************************************************************
 240       // indices 1 and 2 for first and second chambers in the station
 241       // iChamber (first chamber) kept for other quanties than Z,
 242       // assumed to be the same in both chambers
 243
 244       iChamber = &fMUON->Chamber(4);
 245       iChamber1 = iChamber;
 246       iChamber2 = &fMUON->Chamber(5);
 247
 248       //iChamber1->GetGeometry()->SetDebug(kTRUE);
 249       //iChamber2->GetGeometry()->SetDebug(kTRUE);
 250
 251       if (gAlice->GetModule("DIPO")) {
 252         // if DIPO is preset, the whole station will be placed in DDIP volume
 253         iChamber1->GetGeometry()->SetMotherVolume("DDIP");
 254         iChamber2->GetGeometry()->SetMotherVolume("DDIP");
 255       }
 256
 257       if (!gAlice->GetModule("DIPO")) {
 258         // Mother volume for each chamber in st3 are only defined if Dipole volue is there.
 259         // Outer excess and inner recess for mother volume radius
 260         // with respect to ROuter and RInner
 261         Float_t dframep_in = 0.006;
 262         Float_t dframep_out= 0.006;
 263         Float_t tpar[3];
 264         Double_t dstation =  ( (-iChamber2->Z()) - (-iChamber1->Z()) ) /2.1;
 265         tpar[0] = iChamber1->RInner()-dframep_in;
 266         tpar[1] = (iChamber1->ROuter()+dframep_out);
 267         tpar[2] = dstation;
 268         gMC->Gsvolu("CH05", "TUBE", idAir, tpar, 3);
 269         gMC->Gsvolu("CH06", "TUBE", idAir, tpar, 3);
 270         iChamber1->GetGeometry()->SetVolume("CH05");
 271         iChamber2->GetGeometry()->SetVolume("CH06");
 272       }
 273       // volumes for slat geometry (xx=5,..,10 chamber id):
 274       // Sxx0 Sxx1 Sxx2 Sxx3  -->   Slat Mother volumes
 275       // SxxG                          -->   Sensitive volume (gas)
 276       // SxxP                          -->   PCB (copper)
 277       // SxxI                          -->   Insulator (G10)
 278       // SxxC                          -->   Carbon panel
 279       // SxxN                          -->   Nomex comb
 280       // SxxX                          -->   Nomex bulk
 281       // SxxH, SxxV                    -->   Horizontal and Vertical frames (Noryl)
 282       // SB5x                          -->   Volumes for the 35 cm long PCB
 283       // slat dimensions: slat is a MOTHER volume!!! made of air
 284
 285       // only for chamber 5: slat 1 has a PCB shorter by 5cm!
 286
 287       Float_t tlength = 35.;
 288       Float_t panelpar2[3]  = { tlength/2., panelpar[1],  panelpar[2]};
 289       Float_t nomexpar2[3]  = { tlength/2., nomexpar[1],  nomexpar[2]};
 290       Float_t nomexbpar2[3] = { tlength/2., nomexbpar[1],  nomexbpar[2]};
 291       Float_t insupar2[3]   = { tlength/2., insupar[1],   insupar[2]};
 292       Float_t pcbpar2[3]    = { tlength/2., pcbpar[1],    pcbpar[2]};
 293       Float_t senspar2[3]   = { tlength/2., senspar[1],   senspar[2]};
 294       Float_t hFramepar2[3] = { tlength/2., hFramepar[1], hFramepar[2]};
 295       Float_t bFramepar2[3] = { tlength/2., bFramepar[1], bFramepar[2]};
 296       Float_t *dum=0;
 297       Float_t pcbDLength3   = (kPcbLength - tlength);
 298
 299       const Int_t   kNslats3         = 5;  // number of slats per quadrant
 300       const Int_t   kNPCB3[kNslats3] = {4, 4, 4, 3, 2}; // n PCB per slat
 301       const Float_t kXpos3[kNslats3] = {0., 0., 0., 0., 0.};//{31., 0., 0., 0., 0.};
 302       const Float_t kYpos3[kNslats3] = {0, 37.8, 37.7, 37.3, 33.7};
 303       Float_t slatLength3[kNslats3];
 304
 305       // create and position the slat (mother) volumes
 306
 307       char idSlatCh5[5];
 308       char idSlatCh6[5];
 309       Float_t xSlat3;
 310       Float_t ySlat3 = 0;
 311       Float_t angle = 0.;
 312       Float_t spar2[3];
 313       for (i = 0; i < kNslats3; i++){
 314
 315         slatLength3[i] = kPcbLength * kNPCB3[i] + 2.* kVframeLength;
 316         xSlat3 = slatLength3[i]/2. +  kDslatLength + kXpos3[i];
 317         ySlat3 += kYpos3[i];
 318
 319         spar[0] = slatLength3[i]/2.;
 320         spar[1] = kSlatHeight/2.;
 321         spar[2] = kSlatWidth/2.;
 322         // take away 5 cm from the first slat in chamber 5
 323         if (i == 0 || i == 1 || i == 2) { // 1 pcb is shortened by 5cm
 324           spar2[0] = spar[0] - pcbDLength3/2.;
 325         } else {
 326           spar2[0] = spar[0];
 327         }
 328         spar2[1] = spar[1];
 329         spar2[2] = spar[2];
 330         Float_t dzCh3 = dzCh;
 331         Float_t zSlat3 = (i%2 ==0)? -zSlat : zSlat; // seems not that zSlat3 = zSlat4 & 5 refering to plan PQ7EN345-6 ?
 332
 333         sprintf(idSlatCh5,"LA%d",kNslats3-1+i);
 334         gMC->Gsvolu(idSlatCh5,"BOX",kSlatMaterial,spar2,3);
 335         detElemId = 500 + i + kNslats3-1;
 336         GetEnvelopes(4)->AddEnvelope(idSlatCh5, detElemId, true, TGeoTranslation(xSlat3, ySlat3, -zSlat3 + dzCh3),
 337                                      TGeoRotation("rot1",90,angle,90,90+angle,0,0) );
 338
 339         sprintf(idSlatCh5,"LA%d",3*kNslats3-2+i);
 340         gMC->Gsvolu(idSlatCh5,"BOX",kSlatMaterial,spar2,3);
 341         detElemId = 550 + i + kNslats3-1;
 342         GetEnvelopes(4)->AddEnvelope(idSlatCh5, detElemId, true, TGeoTranslation(-xSlat3, ySlat3, zSlat3 - dzCh3),
 343                                      TGeoRotation("rot2",90,180+angle,90,90+angle,180,0) );
 344
 345         if (i > 0) {
 346           sprintf(idSlatCh5,"LA%d",kNslats3-1-i);
 347           gMC->Gsvolu(idSlatCh5,"BOX",kSlatMaterial,spar2,3);
 348           detElemId = 500 - i + kNslats3-1;
 349           GetEnvelopes(4)->AddEnvelope(idSlatCh5, detElemId, true, TGeoTranslation(xSlat3, -ySlat3, -zSlat3 + dzCh3),
 350                                        TGeoRotation("rot3",90,angle,90,270+angle,180,0) );
 351
 352           sprintf(idSlatCh5,"LA%d",3*kNslats3-2-i);
 353           gMC->Gsvolu(idSlatCh5,"BOX",kSlatMaterial,spar2,3);
 354           detElemId = 550 - i + kNslats3-1;
 355           GetEnvelopes(4)->AddEnvelope(idSlatCh5, detElemId, true, TGeoTranslation(-xSlat3, -ySlat3, zSlat3 - dzCh3),
 356                                        TGeoRotation("rot4",90,180+angle,90,270+angle,0,0) );
 357         }
 358
 359         sprintf(idSlatCh6,"LB%d",kNslats3-1+i);
 360         gMC->Gsvolu(idSlatCh6,"BOX",kSlatMaterial,spar,3);
 361         detElemId = 600 + i  + kNslats3-1;
 362         GetEnvelopes(5)->AddEnvelope(idSlatCh6, detElemId, true, TGeoTranslation(xSlat3, ySlat3, -zSlat3 + dzCh3),
 363                                      TGeoRotation("rot5",90,angle,90,90+angle,0,0) );
 364         sprintf(idSlatCh6,"LB%d",3*kNslats3-2+i);
 365         gMC->Gsvolu(idSlatCh6,"BOX",kSlatMaterial,spar,3);
 366         detElemId = 650 + i + kNslats3-1;
 367         GetEnvelopes(5)->AddEnvelope(idSlatCh6, detElemId, true, TGeoTranslation(-xSlat3, ySlat3, zSlat3 - dzCh3),
 368                                      TGeoRotation("rot6",90,180+angle,90,90+angle,180,0) );
 369
 370         if (i > 0) {
 371           sprintf(idSlatCh6,"LB%d",kNslats3-1-i);
 372           gMC->Gsvolu(idSlatCh6,"BOX",kSlatMaterial,spar,3);
 373           detElemId = 600 - i + kNslats3-1;
 374           GetEnvelopes(5)->AddEnvelope(idSlatCh6, detElemId, true, TGeoTranslation(xSlat3, -ySlat3, -zSlat3 + dzCh3),
 375                                        TGeoRotation("rot7",90,angle,90,270+angle,180,0) );
 376
 377           sprintf(idSlatCh6,"LB%d",3*kNslats3-2-i);
 378           gMC->Gsvolu(idSlatCh6,"BOX",kSlatMaterial,spar,3);
 379           detElemId = 650 - i + kNslats3-1;
 380           GetEnvelopes(5)->AddEnvelope(idSlatCh6, detElemId, true, TGeoTranslation(-xSlat3, -ySlat3, zSlat3 - dzCh3),
 381                                        TGeoRotation("rot8",90,180+angle,90,270+angle,0,0) );
 382         }
 383       }
 384
 385       // create the panel volume
 386
 387       gMC->Gsvolu("S05C","BOX",kCarbonMaterial,panelpar,3);
 388       gMC->Gsvolu("SB5C","BOX",kCarbonMaterial,panelpar2,3);
 389       gMC->Gsvolu("S06C","BOX",kCarbonMaterial,panelpar,3);
 390
 391       // create the nomex volume (honey comb)
 392
 393       gMC->Gsvolu("S05N","BOX",kNomexMaterial,nomexpar,3);
 394       gMC->Gsvolu("SB5N","BOX",kNomexMaterial,nomexpar2,3);
 395       gMC->Gsvolu("S06N","BOX",kNomexMaterial,nomexpar,3);
 396
 397       // create the nomex volume (bulk)
 398
 399       gMC->Gsvolu("S05X","BOX",kNomexBMaterial,nomexbpar,3);
 400       gMC->Gsvolu("SB5X","BOX",kNomexBMaterial,nomexbpar2,3);
 401       gMC->Gsvolu("S06X","BOX",kNomexBMaterial,nomexbpar,3);
 402
 403       // create the insulating material volume
 404
 405       gMC->Gsvolu("S05I","BOX",kInsuMaterial,insupar,3);
 406       gMC->Gsvolu("SB5I","BOX",kInsuMaterial,insupar2,3);
 407       gMC->Gsvolu("S06I","BOX",kInsuMaterial,insupar,3);
 408
 409       // create the PCB volume
 410
 411       gMC->Gsvolu("S05P","BOX",kPcbMaterial,pcbpar,3);
 412       gMC->Gsvolu("SB5P","BOX",kPcbMaterial,pcbpar2,3);
 413       gMC->Gsvolu("S06P","BOX",kPcbMaterial,pcbpar,3);
 414
 415       // create the sensitive volumes,
 416
 417       gMC->Gsvolu("S05G","BOX",kSensMaterial,dum,0);
 418       gMC->Gsvolu("S06G","BOX",kSensMaterial,dum,0);
 419
 420       // create the vertical frame volume
 421
 422       gMC->Gsvolu("S05V","BOX",kVframeMaterial,vFramepar,3);
 423       gMC->Gsvolu("S06V","BOX",kVframeMaterial,vFramepar,3);
 424
 425       // create the horizontal frame volume
 426
 427       gMC->Gsvolu("S05H","BOX",kHframeMaterial,hFramepar,3);
 428       gMC->Gsvolu("SB5H","BOX",kHframeMaterial,hFramepar2,3);
 429       gMC->Gsvolu("S06H","BOX",kHframeMaterial,hFramepar,3);
 430
 431       // create the horizontal border volume
 432
 433       gMC->Gsvolu("S05B","BOX",kBframeMaterial,bFramepar,3);
 434       gMC->Gsvolu("SB5B","BOX",kBframeMaterial,bFramepar2,3);
 435       gMC->Gsvolu("S06B","BOX",kBframeMaterial,bFramepar,3);
 436
 437       index = 0;
 438       for (i = 0; i<kNslats3; i++){
 439         for (Int_t quadrant = 1; quadrant <= 4; quadrant++) {
 440
 441           if (i == 0 && quadrant == 2) continue;
 442           if (i == 0 && quadrant == 4) continue;
 443
 444           sprintf(idSlatCh5,"LA%d",ConvertSlatNum(i,quadrant,kNslats3-1));
 445           sprintf(idSlatCh6,"LB%d",ConvertSlatNum(i,quadrant,kNslats3-1));
 446           Float_t xvFrame  = (slatLength3[i] - kVframeLength)/2.;
 447           Float_t xvFrame2  = xvFrame;
 448
 449           if (i == 0 || i == 1 || i == 2) xvFrame2 -= pcbDLength3/2.;
 450
 451           // position the vertical frames
 452           if ( i > 2) {
 453             GetEnvelopes(4)->AddEnvelopeConstituent("S05V", idSlatCh5,
 454                                                     (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 455             GetEnvelopes(4)->AddEnvelopeConstituent("S05V", idSlatCh5,
 456                                                     (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 457             GetEnvelopes(5)->AddEnvelopeConstituent("S06V", idSlatCh6,
 458                                                     (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 459             GetEnvelopes(5)->AddEnvelopeConstituent("S06V", idSlatCh6,
 460                                                     (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 461           }
 462
 463           if (i == 2) {
 464             GetEnvelopes(4)->AddEnvelopeConstituent("S05V", idSlatCh5,
 465                                                     (2*i-1)*10+quadrant,TGeoTranslation(xvFrame2,0.,0.));
 466             GetEnvelopes(4)->AddEnvelopeConstituent("S05V", idSlatCh5,
 467                                                     (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 468             GetEnvelopes(5)->AddEnvelopeConstituent("S06V", idSlatCh6,
 469                                                     (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 470             GetEnvelopes(5)->AddEnvelopeConstituent("S06V", idSlatCh6,
 471                                                     (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 472           }
 473
 474           if (i == 0 || i == 1) { // no rounded spacer for the moment (Ch. Finck)
 475             GetEnvelopes(4)->AddEnvelopeConstituent("S05V", idSlatCh5,
 476                                                     (2*i-1)*10+quadrant,TGeoTranslation(xvFrame2,0.,0.));
 477             GetEnvelopes(5)->AddEnvelopeConstituent("S06V", idSlatCh6,
 478                                                     (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 479           }
 480
 481           // position the panels and the insulating material
 482           for (j = 0; j < kNPCB3[i]; j++){
 483             if (i == 1 && j == 0) continue;
 484             if (i == 0 && j == 0) continue;
 485             index++;
 486             Float_t xx = kSensLength * (-kNPCB3[i]/2. + j + 0.5);
 487             Float_t xx2 = xx - pcbDLength3/2.;
 488
 489             Float_t zPanel = spar[2] - nomexbpar[2];
 490
 491             if ( (i == 0 || i == 1 || i == 2) && j == kNPCB3[i]-1) { // 1 pcb is shortened by 5cm
 492               GetEnvelopes(4)->AddEnvelopeConstituent("SB5X", idSlatCh5, 2*index-1,TGeoTranslation(xx2,0.,zPanel));
 493               GetEnvelopes(4)->AddEnvelopeConstituent("SB5X", idSlatCh5, 2*index,TGeoTranslation(xx2,0.,-zPanel));
 494               GetEnvelopes(4)->AddEnvelopeConstituent("SB5I", idSlatCh5, index,TGeoTranslation(xx2,0.,0.));
 495             } else {
 496               GetEnvelopes(4)->AddEnvelopeConstituent("S05X", idSlatCh5, 2*index-1,TGeoTranslation(xx,0.,zPanel));
 497               GetEnvelopes(4)->AddEnvelopeConstituent("S05X", idSlatCh5, 2*index,TGeoTranslation(xx,0.,-zPanel));
 498               GetEnvelopes(4)->AddEnvelopeConstituent("S05I", idSlatCh5, index,TGeoTranslation(xx,0.,0.));
 499             }
 500             GetEnvelopes(5)->AddEnvelopeConstituent("S06X", idSlatCh6, 2*index-1,TGeoTranslation(xx,0.,zPanel));
 501             GetEnvelopes(5)->AddEnvelopeConstituent("S06X", idSlatCh6, 2*index,TGeoTranslation(xx,0.,-zPanel));
 502             GetEnvelopes(5)->AddEnvelopeConstituent("S06I", idSlatCh6, index,TGeoTranslation(xx,0.,0.));
 503
 504           }
 505         }
 506       }
 507
 508       // position the nomex volume inside the panel volume
 509       gMC->Gspos("S05N",1,"S05C",0.,0.,0.,0,"ONLY");
 510       gMC->Gspos("SB5N",1,"SB5C",0.,0.,0.,0,"ONLY");
 511       gMC->Gspos("S06N",1,"S06C",0.,0.,0.,0,"ONLY");
 512
 513       // position panel volume inside the bulk nomex material volume
 514       gMC->Gspos("S05C",1,"S05X",0.,0.,kNomexBWidth/2.,0,"ONLY");
 515       gMC->Gspos("SB5C",1,"SB5X",0.,0.,kNomexBWidth/2.,0,"ONLY");
 516       gMC->Gspos("S06C",1,"S06X",0.,0.,kNomexBWidth/2.,0,"ONLY");
 517
 518       // position the PCB volume inside the insulating material volume
 519       gMC->Gspos("S05P",1,"S05I",0.,0.,0.,0,"ONLY");
 520       gMC->Gspos("SB5P",1,"SB5I",0.,0.,0.,0,"ONLY");
 521       gMC->Gspos("S06P",1,"S06I",0.,0.,0.,0,"ONLY");
 522
 523       // position the horizontal frame volume inside the PCB volume
 524       gMC->Gspos("S05H",1,"S05P",0.,0.,0.,0,"ONLY");
 525       gMC->Gspos("SB5H",1,"SB5P",0.,0.,0.,0,"ONLY");
 526       gMC->Gspos("S06H",1,"S06P",0.,0.,0.,0,"ONLY");
 527
 528       // position the sensitive volume inside the horizontal frame volume
 529       gMC->Gsposp("S05G",1,"S05H",0.,0.,0.,0,"ONLY",senspar,3);
 530       gMC->Gsposp("S05G",1,"SB5H",0.,0.,0.,0,"ONLY",senspar2,3);
 531       gMC->Gsposp("S06G",1,"S06H",0.,0.,0.,0,"ONLY",senspar,3);
 532
 533
 534       // position the border volumes inside the PCB volume
 535       Float_t yborder = ( kPcbHeight - kBframeHeight ) / 2.;
 536       gMC->Gspos("S05B",1,"S05P",0., yborder,0.,0,"ONLY");
 537       gMC->Gspos("S05B",2,"S05P",0.,-yborder,0.,0,"ONLY");
 538       gMC->Gspos("SB5B",1,"SB5P",0., yborder,0.,0,"ONLY");
 539       gMC->Gspos("SB5B",2,"SB5P",0.,-yborder,0.,0,"ONLY");
 540
 541       gMC->Gspos("S06B",1,"S06P",0., yborder,0.,0,"ONLY");
 542       gMC->Gspos("S06B",2,"S06P",0.,-yborder,0.,0,"ONLY");
 543
 544       // create the NULOC volume and position it in the horizontal frame
 545       gMC->Gsvolu("S05E","BOX",kNulocMaterial,nulocpar,3);
 546       gMC->Gsvolu("S06E","BOX",kNulocMaterial,nulocpar,3);
 547       index = 0;
 548       Float_t xxmax2 = xxmax - pcbDLength3/2.;
 549       for (xx = -xxmax; xx <= xxmax; xx += 2*kNulocLength) {
 550         index++;
 551         gMC->Gspos("S05E",2*index-1,"S05B", xx, 0.,-kBframeWidth/2. + kNulocWidth/2, 0, "ONLY");
 552         gMC->Gspos("S05E",2*index  ,"S05B", xx, 0., kBframeWidth/2. - kNulocWidth/2, 0, "ONLY");
 553         gMC->Gspos("S06E",2*index-1,"S06B", xx, 0.,-kBframeWidth/2. + kNulocWidth/2, 0, "ONLY");
 554         gMC->Gspos("S06E",2*index  ,"S06B", xx, 0., kBframeWidth/2.-  kNulocWidth/2, 0, "ONLY");
 555         if (xx > -xxmax2 && xx< xxmax2) {
 556           gMC->Gspos("S05E",2*index-1,"SB5B", xx, 0.,-kBframeWidth/2.+ kNulocWidth/2, 0, "ONLY");
 557           gMC->Gspos("S05E",2*index  ,"SB5B", xx, 0., kBframeWidth/2.- kNulocWidth/2, 0, "ONLY");
 558         }
 559       }
 560
 561       // position the volumes approximating the circular section of the pipe
 562       Float_t epsilon = 0.001;
 563       Int_t ndiv = 6;
 564       Int_t imax = 1;
 565       Double_t divpar[3];
 566       Double_t dydiv = kSensHeight/ndiv;
 567       Double_t ydiv  = (kSensHeight - dydiv)/2.;
 568       Double_t rmin  = 31.5;  // Corrected in sep04 from PQ-LAT-SR2 de CEA-DSM-DAPNIA-SIS/BE ph HARDY 19-Oct-2002 slat
 569       Double_t xdiv  = 0.;
 570       Float_t xvol;
 571       Float_t yvol;
 572
 573       for (Int_t idiv = 0; idiv < ndiv; idiv++){
 574         ydiv += dydiv;
 575         xdiv = 0.;
 576         if (ydiv < rmin) xdiv = rmin * TMath::Sin( TMath::ACos((ydiv-dydiv/2.)/rmin) );
 577         divpar[0] = (kPcbLength - xdiv)/2.;
 578         divpar[1] = dydiv/2. - epsilon;
 579         divpar[2] = kSensWidth/2.;
 580         xvol = (kPcbLength + xdiv)/2.;
 581         yvol = ydiv;
 582
 583         // Volumes close to the beam pipe for slat i=1 so 4 slats per chamber
 584         for (Int_t quadrant = 1; quadrant <= 4; quadrant++) {
 585           sprintf(idSlatCh5,"LA%d",ConvertSlatNum(1,quadrant,kNslats3-1));
 586           sprintf(idSlatCh6,"LB%d",ConvertSlatNum(1,quadrant,kNslats3-1));
 587
 588           GetEnvelopes(4)->AddEnvelopeConstituentParam("S05G", idSlatCh5, quadrant*100+imax+4*idiv+1,
 589                                                        TGeoTranslation(xvol-(kPcbLength * kNPCB3[1]/2.),yvol-kPcbLength,0.),3,divpar);
 590
 591           GetEnvelopes(5)->AddEnvelopeConstituentParam("S06G", idSlatCh6,  quadrant*100+imax+4*idiv+1,
 592                                                        TGeoTranslation(xvol-(kPcbLength * kNPCB3[1]/2.),yvol-kPcbLength,0.),3,divpar);
 593         }
 594       }
 595
 596       // Volumes close to the beam pipe for slat i=0 so 2 slats per chamber (central slat for station 3)
 597       //      Gines Martinez, Subatech sep 04
 598       // 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
 599       // Accordingly to plan PQ-LAT-SR1 of CEA-DSM-DAPNIA-SIS/BE ph HARDY 8-Oct-2002
 600       // Rmin = 31.5 cm
 601       rmin = 31.5; //in cm
 602       ndiv  = 9;
 603       dydiv = kSensHeight/ndiv;           // Vertical size of the box volume approximating the rounded PCB
 604       ydiv  = -kSensHeight/2 + dydiv/2.;   // Initializing vertical position of the volume from bottom
 605       xdiv  = 0.;                         // Initializing horizontal position of the box volumes
 606
 607       for (Int_t idiv = 0; idiv < ndiv; idiv++){
 608         xdiv = TMath::Abs( rmin * TMath::Sin( TMath::ACos(ydiv/rmin) ) );
 609         divpar[0] = (kPcbLength - xdiv)/2.; // Dimension of the box volume
 610         divpar[1] = dydiv/2. - epsilon;
 611         divpar[2] = kSensWidth/2.;
 612         xvol = (kPcbLength + xdiv)/2.; //2D traslition for positionning of box volume
 613         yvol =  ydiv;
 614         Int_t side;
 615         for (side = 1; side <= 2; side++) {
 616           sprintf(idSlatCh5,"LA%d",4);
 617           sprintf(idSlatCh6,"LB%d",4);
 618           if(side == 2) {
 619             sprintf(idSlatCh5,"LA%d",13);
 620             sprintf(idSlatCh6,"LB%d",13);
 621           }
 622           GetEnvelopes(4)->AddEnvelopeConstituentParam("S05G", idSlatCh5,500+side*100+imax+4*idiv+1,
 623                                                        TGeoTranslation(xvol-(kPcbLength * kNPCB3[0]/2.),yvol,0.),3,divpar);
 624
 625           GetEnvelopes(5)->AddEnvelopeConstituentParam("S06G", idSlatCh6,500+side*100+imax+4*idiv+1,
 626                                                        TGeoTranslation(xvol-(kPcbLength * kNPCB3[0]/2.),yvol,0.),3,divpar);
 627         }
 628         ydiv += dydiv; // Going from bottom to top
 629       }
 630       // cout << "Geometry for Station 3...... done" << endl;
 631     }
 632
 633   if (fStations[3]) {
 634
 635
 636     // //********************************************************************
 637     // //                            Station 4                             **
 638     // //********************************************************************
 639     //      // indices 1 and 2 for first and second chambers in the station
 640     //      // iChamber (first chamber) kept for other quanties than Z,
 641     //      // assumed to be the same in both chambers
 642     //      corrected geometry (JP. Cussonneau, Ch. Finck)
 643
 644     iChamber = &fMUON->Chamber(6);
 645     iChamber1 = iChamber;
 646     iChamber2 = &fMUON->Chamber(7);
 647
 648     const Int_t   kNslats4          = 7;  // number of slats per quadrant
 649     const Int_t   kNPCB4[kNslats4]  = {5, 6, 5, 5, 4, 3, 2}; // n PCB per slat
 650     const Float_t kXpos4[kNslats4]  = {38.2, 0., 0., 0., 0., 0., 0.};
 651     const Float_t kYpos41[kNslats4] = {0., 38.2, 34.40, 36.60, 29.3, 37.0, 28.6};
 652     const Float_t kYpos42[kNslats4] = {0., 38.2, 37.85, 37.55, 29.4, 37.0, 28.6};
 653
 654     Float_t slatLength4[kNslats4];
 655
 656
 657     // Mother volume for each chamber
 658     // Outer excess and inner recess for mother volume radius
 659     // with respect to ROuter and RInner
 660     Float_t dframep_in = 0.006;
 661     Float_t dframep_out= 0.006;
 662     Float_t tpar[3];
 663     Double_t dstation =  ( (-iChamber2->Z()) - (-iChamber1->Z()) ) /2.1;
 664     tpar[0] = iChamber1->RInner()-dframep_in;
 665     tpar[1] = (iChamber1->ROuter()+dframep_out);
 666     tpar[2] = dstation;
 667     gMC->Gsvolu("CH07", "TUBE", idAir, tpar, 3);
 668     gMC->Gsvolu("CH08", "TUBE", idAir, tpar, 3);
 669     iChamber1->GetGeometry()->SetVolume("CH07");
 670     iChamber2->GetGeometry()->SetVolume("CH08");
 671
 672     // create and position the slat (mother) volumes
 673
 674     char idSlatCh7[5];
 675     char idSlatCh8[5];
 676     Float_t xSlat4;
 677     Float_t ySlat41 = 0;
 678     Float_t ySlat42 = 0;
 679
 680     angle = 0.;
 681
 682     for (i = 0; i<kNslats4; i++){
 683       slatLength4[i] = kPcbLength * kNPCB4[i] + 2. * kVframeLength;
 684       xSlat4 = slatLength4[i]/2. + kDslatLength + kXpos4[i];
 685       ySlat41 += kYpos41[i];
 686       ySlat42 += kYpos42[i];
 687
 688       spar[0] = slatLength4[i]/2.;
 689       spar[1] = kSlatHeight/2.;
 690       spar[2] = kSlatWidth/2.;
 691       Float_t dzCh4 = dzCh;
 692       Float_t zSlat4 = (i%2 ==0)? -zSlat : zSlat;
 693
 694       sprintf(idSlatCh7,"LC%d",kNslats4-1+i);
 695       gMC->Gsvolu(idSlatCh7,"BOX",kSlatMaterial,spar,3);
 696       detElemId = 700 + i + kNslats4-1;
 697       GetEnvelopes(6)->AddEnvelope(idSlatCh7, detElemId, true, TGeoTranslation(xSlat4, ySlat41, -zSlat4 + dzCh4),
 698                                    TGeoRotation("rot1",90,angle,90,90+angle,0,0) );
 699
 700       sprintf(idSlatCh7,"LC%d",3*kNslats4-2+i);
 701       gMC->Gsvolu(idSlatCh7,"BOX",kSlatMaterial,spar,3);
 702       detElemId = 750 + i + kNslats4-1;
 703       GetEnvelopes(6)->AddEnvelope(idSlatCh7, detElemId, true, TGeoTranslation(-xSlat4, ySlat41, zSlat4 - dzCh4),
 704                                    TGeoRotation("rot2",90,180+angle,90,90+angle,180,0) );
 705
 706       if (i > 0) {
 707         sprintf(idSlatCh7,"LC%d",kNslats4-1-i);
 708         gMC->Gsvolu(idSlatCh7,"BOX",kSlatMaterial,spar,3);
 709         detElemId = 700 - i + kNslats4-1;
 710         GetEnvelopes(6)->AddEnvelope(idSlatCh7, detElemId, true, TGeoTranslation(xSlat4, -ySlat41, -zSlat4 + dzCh4),
 711                                      TGeoRotation("rot3",90,angle,90,270+angle,180,0) );
 712
 713         sprintf(idSlatCh7,"LC%d",3*kNslats4-2-i);
 714         detElemId = 750 - i + kNslats4-1;
 715         gMC->Gsvolu(idSlatCh7,"BOX",kSlatMaterial,spar,3);
 716         GetEnvelopes(6)->AddEnvelope(idSlatCh7, detElemId, true,
 717                                      TGeoTranslation(-xSlat4, -ySlat41, zSlat4 - dzCh4),
 718                                      TGeoRotation("rot4",90,180+angle,90,270+angle,0,0) );
 719       }
 720
 721       sprintf(idSlatCh8,"LD%d",kNslats4-1+i);
 722       gMC->Gsvolu(idSlatCh8,"BOX",kSlatMaterial,spar,3);
 723       detElemId = 800 + i + kNslats4-1;
 724       GetEnvelopes(7)->AddEnvelope(idSlatCh8, detElemId, true, TGeoTranslation(xSlat4, ySlat42, -zSlat4 + dzCh4),
 725                                    TGeoRotation("rot5",90,angle,90,90+angle,0,0) );
 726
 727       sprintf(idSlatCh8,"LD%d",3*kNslats4-2+i);
 728       detElemId = 850 + i + kNslats4-1;
 729       gMC->Gsvolu(idSlatCh8,"BOX",kSlatMaterial,spar,3);
 730       GetEnvelopes(7)->AddEnvelope(idSlatCh8, detElemId, true, TGeoTranslation(-xSlat4, ySlat42, zSlat4 - dzCh4),
 731                                    TGeoRotation("rot6",90,180+angle,90,90+angle,180,0) );
 732       if (i > 0) {
 733         sprintf(idSlatCh8,"LD%d",kNslats4-1-i);
 734         detElemId = 800 - i + kNslats4-1;
 735         gMC->Gsvolu(idSlatCh8,"BOX",kSlatMaterial,spar,3);
 736         GetEnvelopes(7)->AddEnvelope(idSlatCh8, detElemId, true, TGeoTranslation(xSlat4, -ySlat42, -zSlat4 + dzCh4),
 737                                      TGeoRotation("rot7",90,angle,90,270+angle,180,0) );
 738         sprintf(idSlatCh8,"LD%d",3*kNslats4-2-i);
 739         detElemId = 850 - i + kNslats4-1;
 740         gMC->Gsvolu(idSlatCh8,"BOX",kSlatMaterial,spar,3);
 741         GetEnvelopes(7)->AddEnvelope(idSlatCh8, detElemId, true, TGeoTranslation(-xSlat4, -ySlat42, zSlat4 - dzCh4),
 742                                      TGeoRotation("rot8",90,180+angle,90,270+angle,0,0) );
 743       }
 744     }
 745
 746     // create the panel volume
 747
 748     gMC->Gsvolu("S07C","BOX",kCarbonMaterial,panelpar,3);
 749     gMC->Gsvolu("S08C","BOX",kCarbonMaterial,panelpar,3);
 750
 751     // create the nomex volume
 752
 753     gMC->Gsvolu("S07N","BOX",kNomexMaterial,nomexpar,3);
 754     gMC->Gsvolu("S08N","BOX",kNomexMaterial,nomexpar,3);
 755
 756
 757     // create the nomex volume (bulk)
 758
 759     gMC->Gsvolu("S07X","BOX",kNomexBMaterial,nomexbpar,3);
 760     gMC->Gsvolu("S08X","BOX",kNomexBMaterial,nomexbpar,3);
 761
 762     // create the insulating material volume
 763
 764     gMC->Gsvolu("S07I","BOX",kInsuMaterial,insupar,3);
 765     gMC->Gsvolu("S08I","BOX",kInsuMaterial,insupar,3);
 766
 767     // create the PCB volume
 768
 769     gMC->Gsvolu("S07P","BOX",kPcbMaterial,pcbpar,3);
 770     gMC->Gsvolu("S08P","BOX",kPcbMaterial,pcbpar,3);
 771
 772     // create the sensitive volumes,
 773
 774     gMC->Gsvolu("S07G","BOX",kSensMaterial,dum,0);
 775     gMC->Gsvolu("S08G","BOX",kSensMaterial,dum,0);
 776
 777     // create the vertical frame volume
 778
 779     gMC->Gsvolu("S07V","BOX",kVframeMaterial,vFramepar,3);
 780     gMC->Gsvolu("S08V","BOX",kVframeMaterial,vFramepar,3);
 781
 782     // create the horizontal frame volume
 783
 784     gMC->Gsvolu("S07H","BOX",kHframeMaterial,hFramepar,3);
 785     gMC->Gsvolu("S08H","BOX",kHframeMaterial,hFramepar,3);
 786
 787     // create the horizontal border volume
 788
 789     gMC->Gsvolu("S07B","BOX",kBframeMaterial,bFramepar,3);
 790     gMC->Gsvolu("S08B","BOX",kBframeMaterial,bFramepar,3);
 791
 792     index = 0;
 793     for (i = 0; i < kNslats4; i++){
 794       for (Int_t quadrant = 1; quadrant <= 4; quadrant++) {
 795
 796         if (i == 0 && quadrant == 2) continue;
 797         if (i == 0 && quadrant == 4) continue;
 798
 799         sprintf(idSlatCh7,"LC%d",ConvertSlatNum(i,quadrant,kNslats4-1));
 800         sprintf(idSlatCh8,"LD%d",ConvertSlatNum(i,quadrant,kNslats4-1));
 801         Float_t xvFrame  = (slatLength4[i] - kVframeLength)/2.;
 802
 803         // position the vertical frames
 804         if (i != 1) {
 805           GetEnvelopes(6)->AddEnvelopeConstituent("S07V", idSlatCh7, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 806           GetEnvelopes(6)->AddEnvelopeConstituent("S07V", idSlatCh7, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 807           GetEnvelopes(7)->AddEnvelopeConstituent("S08V", idSlatCh8, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 808           GetEnvelopes(7)->AddEnvelopeConstituent("S08V", idSlatCh8, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 809         } else { // no rounded spacer yet
 810           GetEnvelopes(6)->AddEnvelopeConstituent("S07V", idSlatCh7, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 811           // GetEnvelopes(6)->AddEnvelopeConstituent("S07V", idSlatCh7, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 812           GetEnvelopes(7)->AddEnvelopeConstituent("S08V", idSlatCh8, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
 813           // GetEnvelopes(7)->AddEnvelopeConstituent("S08V", idSlatCh8, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
 814         }
 815         // position the panels and the insulating material
 816         for (j = 0; j < kNPCB4[i]; j++){
 817           if (i == 1 && j == 0) continue;
 818           index++;
 819           Float_t xx = kSensLength * (-kNPCB4[i]/2.+j+.5);
 820
 821           Float_t zPanel = spar[2] - nomexbpar[2];
 822           GetEnvelopes(6)->AddEnvelopeConstituent("S07X", idSlatCh7, 2*index-1,TGeoTranslation(xx,0.,zPanel));
 823           GetEnvelopes(6)->AddEnvelopeConstituent("S07X", idSlatCh7, 2*index,TGeoTranslation(xx,0.,-zPanel));
 824           GetEnvelopes(6)->AddEnvelopeConstituent("S07I", idSlatCh7, index,TGeoTranslation(xx,0.,0.));
 825           GetEnvelopes(7)->AddEnvelopeConstituent("S08X", idSlatCh8, 2*index-1,TGeoTranslation(xx,0.,zPanel));
 826           GetEnvelopes(7)->AddEnvelopeConstituent("S08X", idSlatCh8, 2*index,TGeoTranslation(xx,0.,-zPanel));
 827           GetEnvelopes(7)->AddEnvelopeConstituent("S08I", idSlatCh8, index,TGeoTranslation(xx,0.,0.));
 828         }
 829       }
 830     }
 831
 832     // position the nomex volume inside the panel volume
 833     gMC->Gspos("S07N",1,"S07C",0.,0.,0.,0,"ONLY");
 834     gMC->Gspos("S08N",1,"S08C",0.,0.,0.,0,"ONLY");
 835
 836     // position panel volume inside the bulk nomex material volume
 837     gMC->Gspos("S07C",1,"S07X",0.,0.,kNomexBWidth/2.,0,"ONLY");
 838     gMC->Gspos("S08C",1,"S08X",0.,0.,kNomexBWidth/2.,0,"ONLY");
 839
 840     // position the PCB volume inside the insulating material volume
 841     gMC->Gspos("S07P",1,"S07I",0.,0.,0.,0,"ONLY");
 842     gMC->Gspos("S08P",1,"S08I",0.,0.,0.,0,"ONLY");
 843
 844     // position the horizontal frame volume inside the PCB volume
 845     gMC->Gspos("S07H",1,"S07P",0.,0.,0.,0,"ONLY");
 846     gMC->Gspos("S08H",1,"S08P",0.,0.,0.,0,"ONLY");
 847
 848     // position the sensitive volume inside the horizontal frame volume
 849     gMC->Gsposp("S07G",1,"S07H",0.,0.,0.,0,"ONLY",senspar,3);
 850     gMC->Gsposp("S08G",1,"S08H",0.,0.,0.,0,"ONLY",senspar,3);
 851
 852     // position the border volumes inside the PCB volume
 853     Float_t yborder = ( kPcbHeight - kBframeHeight ) / 2.;
 854     gMC->Gspos("S07B",1,"S07P",0., yborder,0.,0,"ONLY");
 855     gMC->Gspos("S07B",2,"S07P",0.,-yborder,0.,0,"ONLY");
 856     gMC->Gspos("S08B",1,"S08P",0., yborder,0.,0,"ONLY");
 857     gMC->Gspos("S08B",2,"S08P",0.,-yborder,0.,0,"ONLY");
 858
 859     // create the NULOC volume and position it in the horizontal frame
 860
 861     gMC->Gsvolu("S07E","BOX",kNulocMaterial,nulocpar,3);
 862     gMC->Gsvolu("S08E","BOX",kNulocMaterial,nulocpar,3);
 863     index = 0;
 864     for (xx = -xxmax; xx <= xxmax; xx += 2*kNulocLength) {
 865       index++;
 866       gMC->Gspos("S07E",2*index-1,"S07B", xx, 0.,-kBframeWidth/2. + kNulocWidth/2, 0, "ONLY");
 867       gMC->Gspos("S07E",2*index  ,"S07B", xx, 0., kBframeWidth/2. - kNulocWidth/2, 0, "ONLY");
 868       gMC->Gspos("S08E",2*index-1,"S08B", xx, 0.,-kBframeWidth/2. + kNulocWidth/2, 0, "ONLY");
 869       gMC->Gspos("S08E",2*index  ,"S08B", xx, 0., kBframeWidth/2. - kNulocWidth/2, 0, "ONLY");
 870     }
 871
 872     // position the volumes approximating the circular section of the pipe
 873
 874     Float_t epsilon = 0.001;
 875     Int_t ndiv = 10;
 876     Int_t imax = 1;
 877     Double_t divpar[3];
 878     Double_t dydiv = kSensHeight/ndiv;
 879     Double_t ydiv  = (kSensHeight - dydiv)/2.;
 880     Float_t rmin   = 39.5;// Corrected in sep04 from PQ-LAT-NR3 de CEA-DSM-DAPNIA-SIS/BE ph HARDY 19-Oct-2002 slat
 881     Float_t xdiv   = 0.;
 882     Float_t xvol;
 883     Float_t yvol;
 884
 885     for (Int_t idiv = 0; idiv < ndiv; idiv++){
 886       ydiv += dydiv;
 887       xdiv = 0.;
 888       if (ydiv < rmin) xdiv = rmin * TMath::Sin( TMath::ACos((ydiv-dydiv/2.)/rmin) );
 889       divpar[0] = (kPcbLength - xdiv)/2.;
 890       divpar[1] = dydiv/2. - epsilon;
 891       divpar[2] = kSensWidth/2.;
 892       xvol = (kPcbLength + xdiv)/2.;
 893       yvol = ydiv ;
 894
 895       for (Int_t quadrant = 1; quadrant <= 4; quadrant++) {
 896         sprintf(idSlatCh7,"LC%d",ConvertSlatNum(1,quadrant,kNslats4-1));
 897         sprintf(idSlatCh8,"LD%d",ConvertSlatNum(1,quadrant,kNslats4-1));
 898
 899         GetEnvelopes(6)->AddEnvelopeConstituentParam("S07G",idSlatCh7, quadrant*100+imax+4*idiv+1,
 900                                                      TGeoTranslation(xvol-kPcbLength * kNPCB4[1]/2.,yvol-kPcbLength,0.),3,divpar);
 901
 902         GetEnvelopes(7)->AddEnvelopeConstituentParam("S08G", idSlatCh8, quadrant*100+imax+4*idiv+1,
 903                                                      TGeoTranslation(xvol-kPcbLength * kNPCB4[1]/2.,yvol-kPcbLength,0.),3,divpar);
 904       }
 905     }
 906     // cout << "Geometry for Station 4...... done" << endl;
 907
 908   }
 909
 910   if (fStations[4]) {
 911
 912
 913     // //********************************************************************
 914     // //                            Station 5                             **
 915     // //********************************************************************
 916     //      // indices 1 and 2 for first and second chambers in the station
 917     //      // iChamber (first chamber) kept for other quanties than Z,
 918     //      // assumed to be the same in both chambers
 919     //      corrected geometry (JP. Cussonneau, Ch. Finck)
 920
 921     iChamber = &fMUON->Chamber(8);
 922     iChamber1 = iChamber;
 923     iChamber2 = &fMUON->Chamber(9);
 924
 925     const Int_t   kNslats5         = 7;  // number of slats per quadrant
 926     const Int_t   kNPCB5[kNslats5] = {5, 6, 6, 6, 5, 4, 3}; // n PCB per slat
 927     const Float_t kXpos5[kNslats5] = {38.2, 0., 0., 0., 0., 0., 0.};
 928     const Float_t kYpos5[kNslats5] = {0., 38.2, 37.9, 37.6, 37.3, 37.05, 36.75};
 929     Float_t slatLength5[kNslats5];
 930
 931     // Mother volume for each chamber
 932     // Outer excess and inner recess for mother volume radius
 933     // with respect to ROuter and RInner
 934     Float_t dframep_in = 0.006;
 935     Float_t dframep_out= 0.006;
 936     Float_t tpar[3];
 937     Double_t dstation =  ( (-iChamber2->Z()) - (-iChamber1->Z()) ) /2.3;
 938     tpar[0] = iChamber1->RInner()-dframep_in;
 939     tpar[1] = (iChamber1->ROuter()+dframep_out);
 940     tpar[2] = dstation;
 941     gMC->Gsvolu("CH09", "TUBE", idAir, tpar, 3);
 942     gMC->Gsvolu("CH10", "TUBE", idAir, tpar, 3);
 943     iChamber1->GetGeometry()->SetVolume("CH09");
 944     iChamber2->GetGeometry()->SetVolume("CH10");
 945
 946     // create and position the slat (mother) volumes
 947
 948     char idSlatCh9[5];
 949     char idSlatCh10[5];
 950     Float_t xSlat5;
 951     Float_t ySlat5 = 0;
 952     angle = 0.;
 953
 954     for (i = 0; i < kNslats5; i++){
 955
 956       slatLength5[i] = kPcbLength * kNPCB5[i] + 2.* kVframeLength;
 957       xSlat5 = slatLength5[i]/2. + kDslatLength + kXpos5[i];
 958       ySlat5 += kYpos5[i];
 959
 960       spar[0] = slatLength5[i]/2.;
 961       spar[1] = kSlatHeight/2.;
 962       spar[2] = kSlatWidth/2.;
 963
 964       Float_t dzCh5  = dzCh;
 965       Float_t zSlat5 = (i%2 ==0)? -zSlat : zSlat;
 966
 967       sprintf(idSlatCh9,"LE%d",kNslats5-1+i);
 968       detElemId = 900 + i + kNslats5-1;
 969       gMC->Gsvolu(idSlatCh9,"BOX",kSlatMaterial,spar,3);
 970       GetEnvelopes(8)->AddEnvelope(idSlatCh9, detElemId, true, TGeoTranslation(xSlat5, ySlat5, -zSlat5 + dzCh5),
 971                                    TGeoRotation("rot1",90,angle,90,90+angle,0,0) );
 972
 973       sprintf(idSlatCh9,"LE%d",3*kNslats5-2+i);
 974       detElemId = 950 + i + kNslats5-1;
 975       gMC->Gsvolu(idSlatCh9,"BOX",kSlatMaterial,spar,3);
 976       GetEnvelopes(8)->AddEnvelope(idSlatCh9, detElemId, true, TGeoTranslation(-xSlat5, ySlat5, zSlat5 - dzCh5),
 977                                    TGeoRotation("rot2",90,180+angle,90,90+angle,180,0) );
 978
 979       if (i > 0) {
 980         sprintf(idSlatCh9,"LE%d",kNslats5-1-i);
 981         detElemId = 900 - i + kNslats5-1;
 982         gMC->Gsvolu(idSlatCh9,"BOX",kSlatMaterial,spar,3);
 983         GetEnvelopes(8)->AddEnvelope(idSlatCh9, detElemId, true, TGeoTranslation(xSlat5, -ySlat5, -zSlat5 + dzCh5),
 984                                      TGeoRotation("rot3",90,angle,90,270+angle,180,0) );
 985
 986         sprintf(idSlatCh9,"LE%d",3*kNslats5-2-i);
 987         detElemId = 950 - i + kNslats5-1;
 988         gMC->Gsvolu(idSlatCh9,"BOX",kSlatMaterial,spar,3);
 989         GetEnvelopes(8)->AddEnvelope(idSlatCh9, detElemId, true, TGeoTranslation(-xSlat5, -ySlat5, zSlat5 - dzCh5),
 990                                      TGeoRotation("rot4",90,180+angle,90,270+angle,0,0)  );
 991       }
 992
 993       sprintf(idSlatCh10,"LF%d",kNslats5-1+i);
 994       detElemId = 1000 + i + kNslats5-1;
 995       gMC->Gsvolu(idSlatCh10,"BOX",kSlatMaterial,spar,3);
 996       GetEnvelopes(9)->AddEnvelope(idSlatCh10, detElemId, true, TGeoTranslation(xSlat5, ySlat5, -zSlat5 + dzCh5),
 997                                    TGeoRotation("rot5",90,angle,90,90+angle,0,0) );
 998
 999       sprintf(idSlatCh10,"LF%d",3*kNslats5-2+i);
1000       detElemId = 1050 + i + kNslats5-1;
1001       gMC->Gsvolu(idSlatCh10,"BOX",kSlatMaterial,spar,3);
1002       GetEnvelopes(9)->AddEnvelope(idSlatCh10, detElemId, true, TGeoTranslation(-xSlat5, ySlat5, zSlat5 - dzCh5),
1003                                    TGeoRotation("rot6",90,180+angle,90,90+angle,180,0) );
1004
1005       if (i > 0) {
1006         sprintf(idSlatCh10,"LF%d",kNslats5-1-i);
1007         detElemId = 1000 - i + kNslats5-1;
1008         gMC->Gsvolu(idSlatCh10,"BOX",kSlatMaterial,spar,3);
1009         GetEnvelopes(9)->AddEnvelope(idSlatCh10, detElemId, true, TGeoTranslation(xSlat5, -ySlat5, -zSlat5 + dzCh5),
1010                                      TGeoRotation("rot7",90,angle,90,270+angle,180,0) );
1011         sprintf(idSlatCh10,"LF%d",3*kNslats5-2-i);
1012         detElemId = 1050 - i + kNslats5-1;
1013         gMC->Gsvolu(idSlatCh10,"BOX",kSlatMaterial,spar,3);
1014         GetEnvelopes(9)->AddEnvelope(idSlatCh10, detElemId, true, TGeoTranslation(-xSlat5, -ySlat5, zSlat5 - dzCh5),
1015                                      TGeoRotation("rot8",90,180+angle,90,270+angle,0,0) );
1016       }
1017     }
1018
1019     // create the panel volume
1020
1021     gMC->Gsvolu("S09C","BOX",kCarbonMaterial,panelpar,3);
1022     gMC->Gsvolu("S10C","BOX",kCarbonMaterial,panelpar,3);
1023
1024     // create the nomex volume
1025
1026     gMC->Gsvolu("S09N","BOX",kNomexMaterial,nomexpar,3);
1027     gMC->Gsvolu("S10N","BOX",kNomexMaterial,nomexpar,3);
1028
1029
1030     // create the nomex volume (bulk)
1031
1032     gMC->Gsvolu("S09X","BOX",kNomexBMaterial,nomexbpar,3);
1033     gMC->Gsvolu("S10X","BOX",kNomexBMaterial,nomexbpar,3);
1034
1035     // create the insulating material volume
1036
1037     gMC->Gsvolu("S09I","BOX",kInsuMaterial,insupar,3);
1038     gMC->Gsvolu("S10I","BOX",kInsuMaterial,insupar,3);
1039
1040     // create the PCB volume
1041
1042     gMC->Gsvolu("S09P","BOX",kPcbMaterial,pcbpar,3);
1043     gMC->Gsvolu("S10P","BOX",kPcbMaterial,pcbpar,3);
1044
1045     // create the sensitive volumes,
1046
1047     gMC->Gsvolu("S09G","BOX",kSensMaterial,dum,0);
1048     gMC->Gsvolu("S10G","BOX",kSensMaterial,dum,0);
1049
1050     // create the vertical frame volume
1051
1052     gMC->Gsvolu("S09V","BOX",kVframeMaterial,vFramepar,3);
1053     gMC->Gsvolu("S10V","BOX",kVframeMaterial,vFramepar,3);
1054
1055     // create the horizontal frame volume
1056
1057     gMC->Gsvolu("S09H","BOX",kHframeMaterial,hFramepar,3);
1058     gMC->Gsvolu("S10H","BOX",kHframeMaterial,hFramepar,3);
1059
1060     // create the horizontal border volume
1061
1062     gMC->Gsvolu("S09B","BOX",kBframeMaterial,bFramepar,3);
1063     gMC->Gsvolu("S10B","BOX",kBframeMaterial,bFramepar,3);
1064
1065     index = 0;
1066     for (i = 0; i < kNslats5; i++){
1067       for (Int_t quadrant = 1; quadrant <= 4; quadrant++) {
1068
1069         if (i == 0 && quadrant == 2) continue;
1070         if (i == 0 && quadrant == 4) continue;
1071
1072         sprintf(idSlatCh9,"LE%d",ConvertSlatNum(i,quadrant,kNslats5-1));
1073         sprintf(idSlatCh10,"LF%d",ConvertSlatNum(i,quadrant,kNslats5-1));
1074         Float_t xvFrame  = (slatLength5[i] - kVframeLength)/2.; // ok
1075
1076         // position the vertical frames (spacers)
1077         if (i != 1) {
1078           GetEnvelopes(8)->AddEnvelopeConstituent("S09V", idSlatCh9, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
1079           GetEnvelopes(8)->AddEnvelopeConstituent("S09V", idSlatCh9, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
1080           GetEnvelopes(9)->AddEnvelopeConstituent("S10V", idSlatCh10, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
1081           GetEnvelopes(9)->AddEnvelopeConstituent("S10V", idSlatCh10, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
1082         } else {  // no rounded spacer yet
1083           GetEnvelopes(8)->AddEnvelopeConstituent("S09V", idSlatCh9, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
1084           //       GetEnvelopes(8)->AddEnvelopeConstituent("S09V", idSlatCh9, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
1085           GetEnvelopes(9)->AddEnvelopeConstituent("S10V", idSlatCh10, (2*i-1)*10+quadrant,TGeoTranslation(xvFrame,0.,0.));
1086           //       GetEnvelopes(9)->AddEnvelopeConstituent("S10V", idSlatCh10, (2*i)*10+quadrant,TGeoTranslation(-xvFrame,0.,0.));
1087         }
1088
1089         // position the panels and the insulating material
1090         for (j = 0; j < kNPCB5[i]; j++){
1091           if (i == 1 && j == 0) continue;
1092           index++;
1093           Float_t xx = kSensLength * (-kNPCB5[i]/2.+j+.5);
1094
1095           Float_t zPanel = spar[2] - nomexbpar[2];
1096           GetEnvelopes(8)->AddEnvelopeConstituent("S09X", idSlatCh9, 2*index-1,TGeoTranslation(xx,0.,zPanel));
1097           GetEnvelopes(8)->AddEnvelopeConstituent("S09X", idSlatCh9, 2*index,TGeoTranslation(xx,0.,-zPanel));
1098           GetEnvelopes(8)->AddEnvelopeConstituent("S09I", idSlatCh9, index,TGeoTranslation(xx,0.,0.));
1099
1100           GetEnvelopes(9)->AddEnvelopeConstituent("S10X", idSlatCh10, 2*index-1,TGeoTranslation(xx,0.,zPanel));
1101           GetEnvelopes(9)->AddEnvelopeConstituent("S10X", idSlatCh10, 2*index,TGeoTranslation(xx,0.,-zPanel));
1102           GetEnvelopes(9)->AddEnvelopeConstituent("S10I", idSlatCh10, index,TGeoTranslation(xx,0.,0.));
1103         }
1104       }
1105     }
1106
1107     // position the nomex volume inside the panel volume
1108     gMC->Gspos("S09N",1,"S09C",0.,0.,0.,0,"ONLY");
1109     gMC->Gspos("S10N",1,"S10C",0.,0.,0.,0,"ONLY");
1110
1111     // position panel  volume inside the bulk nomex material volume
1112     gMC->Gspos("S09C",1,"S09X",0.,0.,kNomexBWidth/2.,0,"ONLY");
1113     gMC->Gspos("S10C",1,"S10X",0.,0.,kNomexBWidth/2.,0,"ONLY");
1114
1115     // position the PCB volume inside the insulating material volume
1116     gMC->Gspos("S09P",1,"S09I",0.,0.,0.,0,"ONLY");
1117     gMC->Gspos("S10P",1,"S10I",0.,0.,0.,0,"ONLY");
1118
1119     // position the horizontal frame volume inside the PCB volume
1120     gMC->Gspos("S09H",1,"S09P",0.,0.,0.,0,"ONLY");
1121     gMC->Gspos("S10H",1,"S10P",0.,0.,0.,0,"ONLY");
1122
1123     // position the sensitive volume inside the horizontal frame volume
1124     gMC->Gsposp("S09G",1,"S09H",0.,0.,0.,0,"ONLY",senspar,3);
1125     gMC->Gsposp("S10G",1,"S10H",0.,0.,0.,0,"ONLY",senspar,3);
1126
1127     // position the border volumes inside the PCB volume
1128     Float_t yborder = ( kPcbHeight - kBframeHeight ) / 2.;
1129     gMC->Gspos("S09B",1,"S09P",0., yborder,0.,0,"ONLY");
1130     gMC->Gspos("S09B",2,"S09P",0.,-yborder,0.,0,"ONLY");
1131     gMC->Gspos("S10B",1,"S10P",0., yborder,0.,0,"ONLY");
1132     gMC->Gspos("S10B",2,"S10P",0.,-yborder,0.,0,"ONLY");
1133
1134     //      // create the NULOC volume and position it in the horizontal frame
1135
1136     gMC->Gsvolu("S09E","BOX",kNulocMaterial,nulocpar,3);
1137     gMC->Gsvolu("S10E","BOX",kNulocMaterial,nulocpar,3);
1138     index = 0;
1139     for (xx = -xxmax; xx <= xxmax; xx += 2*kNulocLength) {
1140       index++;
1141       gMC->Gspos("S09E",2*index-1,"S09B", xx, 0.,-kBframeWidth/2. + kNulocWidth/2, 0, "ONLY");
1142       gMC->Gspos("S09E",2*index  ,"S09B", xx, 0., kBframeWidth/2. - kNulocWidth/2, 0, "ONLY");
1143       gMC->Gspos("S10E",2*index-1,"S10B", xx, 0.,-kBframeWidth/2. + kNulocWidth/2, 0, "ONLY");
1144       gMC->Gspos("S10E",2*index  ,"S10B", xx, 0., kBframeWidth/2. - kNulocWidth/2, 0, "ONLY");
1145     }
1146
1147
1148     // position the volumes approximating the circular section of the pipe
1149     Float_t epsilon = 0.001;
1150     Int_t ndiv = 10;
1151     Int_t imax = 1;
1152     Double_t divpar[3];
1153     Double_t dydiv = kSensHeight/ndiv;
1154     Double_t ydiv  = (kSensHeight - dydiv)/2.;
1155     Float_t rmin   = 39.5;
1156     Float_t xdiv   = 0.;
1157     Float_t xvol;
1158     Float_t yvol;
1159
1160     for (Int_t idiv = 0; idiv < ndiv; idiv++){
1161       ydiv += dydiv;
1162       xdiv = 0.;
1163       if (ydiv < rmin) xdiv = rmin * TMath::Sin( TMath::ACos((ydiv-dydiv/2.)/rmin) );
1164       divpar[0] = (kPcbLength - xdiv)/2.;
1165       divpar[1] = dydiv/2. - epsilon;
1166       divpar[2] = kSensWidth/2.;
1167       xvol = (kPcbLength + xdiv)/2.;
1168       yvol = ydiv;
1169
1170       for (Int_t quadrant = 1; quadrant <= 4; quadrant++) {
1171         sprintf(idSlatCh9,"LE%d",ConvertSlatNum(1,quadrant,kNslats5-1));
1172         sprintf(idSlatCh10,"LF%d",ConvertSlatNum(1,quadrant,kNslats5-1));
1173
1174         GetEnvelopes(8)->AddEnvelopeConstituentParam("S09G", idSlatCh9, quadrant*100+imax+4*idiv+1,
1175                                                      TGeoTranslation(xvol-kPcbLength * kNPCB5[1]/2.,yvol-kPcbLength,0.),3,divpar);
1176         GetEnvelopes(9)->AddEnvelopeConstituentParam("S10G", idSlatCh10,  quadrant*100+imax+4*idiv+1,
1177                                                      TGeoTranslation(xvol-kPcbLength * kNPCB5[1]/2.,yvol-kPcbLength,0.),3,divpar);
1178       }
1179     }
1180     // cout << "Geometry for Station 5...... done" << endl;
1181
1182   }
1183 }
1184
1185
1186 //______________________________________________________________________________
1187 void AliMUONSlatGeometryBuilder::SetTransformations()
1188 {
1189 // Defines the transformations for the station2 chambers.
1190 // ---
1191
1192   AliMUONChamber* iChamber1 = &fMUON->Chamber(4);
1193   Double_t zpos1 = - iChamber1->Z();
1194   iChamber1->GetGeometry()
1195     ->SetTranslation(TGeoTranslation(0., 0., zpos1));
1196
1197   AliMUONChamber* iChamber2 = &fMUON->Chamber(5);
1198   Double_t zpos2 = - iChamber2->Z();
1199   iChamber2->GetGeometry()
1200     ->SetTranslation(TGeoTranslation(0., 0., zpos2));
1201
1202  iChamber1 = &fMUON->Chamber(6);
1203   zpos1 = - iChamber1->Z();
1204   iChamber1->GetGeometry()
1205     ->SetTranslation(TGeoTranslation(0., 0., zpos1));
1206
1207   iChamber2 = &fMUON->Chamber(7);
1208   zpos2 = - iChamber2->Z();
1209   iChamber2->GetGeometry()
1210     ->SetTranslation(TGeoTranslation(0., 0., zpos2));
1211
1212  iChamber1 = &fMUON->Chamber(8);
1213   zpos1 = - iChamber1->Z();
1214   iChamber1->GetGeometry()
1215     ->SetTranslation(TGeoTranslation(0., 0., zpos1));
1216
1217   iChamber2 = &fMUON->Chamber(9);
1218   zpos2 = - iChamber2->Z();
1219   iChamber2->GetGeometry()
1220     ->SetTranslation(TGeoTranslation(0., 0., zpos2));
1221
1222 }
1223
1224 //______________________________________________________________________________
1225 void AliMUONSlatGeometryBuilder::SetSensitiveVolumes()
1226 {
1227 // Defines the sensitive volumes for slat stations chambers.
1228 // ---
1229
1230   GetGeometry(4)->SetSensitiveVolume("S05G");
1231   GetGeometry(5)->SetSensitiveVolume("S06G");
1232   GetGeometry(6)->SetSensitiveVolume("S07G");
1233   GetGeometry(7)->SetSensitiveVolume("S08G");
1234   GetGeometry(8)->SetSensitiveVolume("S09G");
1235   GetGeometry(9)->SetSensitiveVolume("S10G");
1236 }
1237
1238 //______________________________________________________________________________
1239 Int_t  AliMUONSlatGeometryBuilder::ConvertSlatNum(Int_t numslat, Int_t quadnum, Int_t fspq) const
1240 {
1241 // On-line function establishing the correspondance between numslat (the slat number on a particular quadrant (numslat->0....4 for St3))
1242 // and slatnum (the slat number on the whole panel (slatnum->1...18 for St3)
1243   numslat += 1;
1244   if (quadnum==2 || quadnum==3)
1245     numslat += fspq;
1246   else
1247     numslat = fspq + 2-numslat;
1248   numslat -= 1;
1249
1250   if (quadnum==3 || quadnum==4) numslat += 2*fspq+1;
1251
1252   return numslat;
1253 }