TRD/AliTRDgeometry.cxx

   1 /**************************************************************************
   2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   3  *                                                                        *
   4  * Author: The ALICE Off-line Project.                                    *
   5  * Contributors are mentioned in the code where appropriate.              *
   6  *                                                                        *
   7  * Permission to use, copy, modify and distribute this software and its   *
   8  * documentation strictly for non-commercial purposes is hereby granted   *
   9  * without fee, provided that the above copyright notice appears in all   *
  10  * copies and that both the copyright notice and this permission notice   *
  11  * appear in the supporting documentation. The authors make no claims     *
  12  * about the suitability of this software for any purpose. It is          *
  13  * provided "as is" without express or implied warranty.                  *
  14  **************************************************************************/
  15
  16 /* $Id$ */
  17
  18 ///////////////////////////////////////////////////////////////////////////////
  19 //                                                                           //
  20 //  TRD geometry class                                                       //
  21 //                                                                           //
  22 ///////////////////////////////////////////////////////////////////////////////
  23
  24 #include <TGeoManager.h>
  25 #include <TGeoPhysicalNode.h>
  26 #include <TGeoMatrix.h>
  27
  28 #include "AliLog.h"
  29 #include "AliRunLoader.h"
  30 #include "AliAlignObj.h"
  31 #include "AliAlignObjParams.h"
  32 #include "AliRun.h"
  33
  34 #include "AliTRD.h"
  35 #include "AliTRDcalibDB.h"
  36 #include "AliTRDgeometry.h"
  37 #include "AliTRDpadPlane.h"
  38 #include "AliTRDSimParam.h"
  39
  40 ClassImp(AliTRDgeometry)
  41
  42 //_____________________________________________________________________________
  43
  44   //
  45   // The geometry constants
  46   //
  47   const Int_t    AliTRDgeometry::fgkNsector   = kNsector;
  48   const Int_t    AliTRDgeometry::fgkNlayer    = kNlayer;
  49   const Int_t    AliTRDgeometry::fgkNstack    = kNstack;
  50   const Int_t    AliTRDgeometry::fgkNdet      = kNdet;
  51
  52   //
  53   // Dimensions of the detector
  54   //
  55
  56   // Total length of the TRD mother volume
  57   const Float_t  AliTRDgeometry::fgkTlength   = 751.0;
  58
  59   // Parameter of the super module mother volumes
  60   const Float_t  AliTRDgeometry::fgkSheight   =  77.9;
  61   const Float_t  AliTRDgeometry::fgkSwidth1   =  94.881;
  62   const Float_t  AliTRDgeometry::fgkSwidth2   = 122.353;
  63   const Float_t  AliTRDgeometry::fgkSlength   = 702.0;
  64
  65   // Length of the additional space in front of the supermodule
  66   // used for services
  67   const Float_t  AliTRDgeometry::fgkFlength   = (AliTRDgeometry::fgkTlength
  68                                                - AliTRDgeometry::fgkSlength) / 2.0;
  69
  70   // The super module side plates
  71   const Float_t  AliTRDgeometry::fgkSMpltT    =   0.2;
  72
  73   // Height of different chamber parts
  74   // Radiator
  75   const Float_t  AliTRDgeometry::fgkCraH      =   4.8;
  76   // Drift region
  77   const Float_t  AliTRDgeometry::fgkCdrH      =   3.0;
  78   // Amplification region
  79   const Float_t  AliTRDgeometry::fgkCamH      =   0.7;
  80   // Readout
  81   const Float_t  AliTRDgeometry::fgkCroH      =   2.316;
  82   // Total height
  83   const Float_t  AliTRDgeometry::fgkCH        = AliTRDgeometry::fgkCraH
  84                                               + AliTRDgeometry::fgkCdrH
  85                                               + AliTRDgeometry::fgkCamH
  86                                               + AliTRDgeometry::fgkCroH;
  87
  88   // Vertical spacing of the chambers
  89   const Float_t  AliTRDgeometry::fgkVspace    =   1.784;
  90   // Horizontal spacing of the chambers
  91   const Float_t  AliTRDgeometry::fgkHspace    =   2.0;
  92   // Radial distance of the first ROC to the outer plates of the SM
  93   const Float_t  AliTRDgeometry::fgkVrocsm    =   1.2;
  94
  95   // Thicknesses of different parts of the chamber frame
  96   // Lower aluminum frame
  97   const Float_t  AliTRDgeometry::fgkCalT      =   0.4;
  98   // Lower Wacosit frame sides
  99   const Float_t  AliTRDgeometry::fgkCclsT     =   0.21;
 100   // Lower Wacosit frame front
 101   const Float_t  AliTRDgeometry::fgkCclfT     =   1.0;
 102   // Thickness of glue around radiator
 103   const Float_t  AliTRDgeometry::fgkCglT      =   0.25;
 104   // Upper Wacosit frame
 105   const Float_t  AliTRDgeometry::fgkCcuT      =   0.9;
 106   // Al frame of back panel
 107   const Float_t  AliTRDgeometry::fgkCauT      =   1.5;
 108   // Additional Al of the lower chamber frame
 109   const Float_t  AliTRDgeometry::fgkCalW      =   1.11;
 110
 111   // Additional width of the readout chamber frames
 112   const Float_t  AliTRDgeometry::fgkCroW      =   0.9;
 113
 114   // Difference of outer chamber width and pad plane width
 115   const Float_t  AliTRDgeometry::fgkCpadW     =   0.0;
 116   const Float_t  AliTRDgeometry::fgkRpadW     =   1.0;
 117
 118   //
 119   // Thickness of the the material layers
 120   //
 121   const Float_t  AliTRDgeometry::fgkMyThick   = 0.005;
 122   const Float_t  AliTRDgeometry::fgkRaThick   = 0.3233;
 123   const Float_t  AliTRDgeometry::fgkDrThick   = AliTRDgeometry::fgkCdrH;
 124   const Float_t  AliTRDgeometry::fgkAmThick   = AliTRDgeometry::fgkCamH;
 125   const Float_t  AliTRDgeometry::fgkXeThick   = AliTRDgeometry::fgkDrThick
 126                                               + AliTRDgeometry::fgkAmThick;
 127   const Float_t  AliTRDgeometry::fgkWrThick   = 0.0002;
 128   const Float_t  AliTRDgeometry::fgkCuThick   = 0.0072;
 129   const Float_t  AliTRDgeometry::fgkGlThick   = 0.05;
 130   const Float_t  AliTRDgeometry::fgkSuThick   = 0.0919;
 131   const Float_t  AliTRDgeometry::fgkRcThick   = 0.0058;
 132   const Float_t  AliTRDgeometry::fgkRpThick   = 0.0632;
 133   const Float_t  AliTRDgeometry::fgkRoThick   = 0.0028;
 134
 135   //
 136   // Position of the material layers
 137   //
 138   const Float_t  AliTRDgeometry::fgkRaZpos    =  0.0;
 139   const Float_t  AliTRDgeometry::fgkDrZpos    =  2.4;
 140   const Float_t  AliTRDgeometry::fgkAmZpos    =  0.0;
 141   const Float_t  AliTRDgeometry::fgkWrZpos    =  0.0;
 142   const Float_t  AliTRDgeometry::fgkCuZpos    = -0.9995;
 143   const Float_t  AliTRDgeometry::fgkGlZpos    = -0.5;
 144   const Float_t  AliTRDgeometry::fgkSuZpos    =  0.0;
 145   const Float_t  AliTRDgeometry::fgkRcZpos    =  1.04;
 146   const Float_t  AliTRDgeometry::fgkRpZpos    =  1.0;
 147   const Float_t  AliTRDgeometry::fgkRoZpos    =  1.05;
 148
 149   const Int_t    AliTRDgeometry::fgkMCMmax    = 16;
 150   const Int_t    AliTRDgeometry::fgkMCMrow    = 4;
 151   const Int_t    AliTRDgeometry::fgkROBmaxC0  = 6;
 152   const Int_t    AliTRDgeometry::fgkROBmaxC1  = 8;
 153   const Int_t    AliTRDgeometry::fgkADCmax    = 21;
 154   const Int_t    AliTRDgeometry::fgkTBmax     = 60;
 155   const Int_t    AliTRDgeometry::fgkPadmax    = 18;
 156   const Int_t    AliTRDgeometry::fgkColmax    = 144;
 157   const Int_t    AliTRDgeometry::fgkRowmaxC0  = 12;
 158   const Int_t    AliTRDgeometry::fgkRowmaxC1  = 16;
 159
 160   const Double_t AliTRDgeometry::fgkTime0Base = 300.65;
 161   const Float_t  AliTRDgeometry::fgkTime0[6]  = { fgkTime0Base + 0 * (Cheight() + Cspace())
 162                                                 , fgkTime0Base + 1 * (Cheight() + Cspace())
 163                                                 , fgkTime0Base + 2 * (Cheight() + Cspace())
 164                                                 , fgkTime0Base + 3 * (Cheight() + Cspace())
 165                                                 , fgkTime0Base + 4 * (Cheight() + Cspace())
 166                                                 , fgkTime0Base + 5 * (Cheight() + Cspace())};
 167
 168 //_____________________________________________________________________________
 169 AliTRDgeometry::AliTRDgeometry()
 170   :AliGeometry()
 171   ,fClusterMatrixArray(0)
 172   ,fPadPlaneArray(0)
 173 {
 174   //
 175   // AliTRDgeometry default constructor
 176   //
 177
 178   Init();
 179
 180 }
 181
 182 //_____________________________________________________________________________
 183 AliTRDgeometry::AliTRDgeometry(const AliTRDgeometry &g)
 184   :AliGeometry(g)
 185   ,fClusterMatrixArray(0)
 186   ,fPadPlaneArray(0)
 187 {
 188   //
 189   // AliTRDgeometry copy constructor
 190   //
 191
 192   Init();
 193
 194 }
 195
 196 //_____________________________________________________________________________
 197 AliTRDgeometry::~AliTRDgeometry()
 198 {
 199   //
 200   // AliTRDgeometry destructor
 201   //
 202
 203   if (fClusterMatrixArray) {
 204     fClusterMatrixArray->Delete();
 205     delete fClusterMatrixArray;
 206     fClusterMatrixArray = 0;
 207   }
 208
 209   if (fPadPlaneArray) {
 210     fPadPlaneArray->Delete();
 211     delete fPadPlaneArray;
 212     fPadPlaneArray = 0;
 213   }
 214
 215 }
 216
 217 //_____________________________________________________________________________
 218 AliTRDgeometry &AliTRDgeometry::operator=(const AliTRDgeometry &g)
 219 {
 220   //
 221   // Assignment operator
 222   //
 223
 224   if (this != &g) {
 225     Init();
 226   }
 227
 228   return *this;
 229
 230 }
 231
 232 //_____________________________________________________________________________
 233 void AliTRDgeometry::Init()
 234 {
 235   //
 236   // Initializes the geometry parameter
 237   //
 238
 239   Int_t istack;
 240   Int_t ilayer;
 241   Int_t isector;
 242
 243   // The outer width of the chambers
 244   fCwidth[0] =  90.4;
 245   fCwidth[1] =  94.8;
 246   fCwidth[2] =  99.3;
 247   fCwidth[3] = 103.7;
 248   fCwidth[4] = 108.1;
 249   fCwidth[5] = 112.6;
 250
 251   // The outer lengths of the chambers
 252   // Includes the spacings between the chambers!
 253   Float_t length[kNlayer][kNstack]   = { { 124.0, 124.0, 110.0, 124.0, 124.0 }
 254                                        , { 124.0, 124.0, 110.0, 124.0, 124.0 }
 255                                        , { 131.0, 131.0, 110.0, 131.0, 131.0 }
 256                                        , { 138.0, 138.0, 110.0, 138.0, 138.0 }
 257                                        , { 145.0, 145.0, 110.0, 145.0, 145.0 }
 258                                        , { 147.0, 147.0, 110.0, 147.0, 147.0 } };
 259
 260   for (istack = 0; istack < kNstack; istack++) {
 261     for (ilayer = 0; ilayer < kNlayer; ilayer++) {
 262       fClength[ilayer][istack] = length[ilayer][istack];
 263     }
 264   }
 265
 266   // The rotation matrix elements
 267   Float_t phi = 0.0;
 268   for (isector = 0; isector < fgkNsector; isector++) {
 269     phi = 2.0 * TMath::Pi() /  (Float_t) fgkNsector * ((Float_t) isector + 0.5);
 270     fRotB11[isector] = TMath::Cos(phi);
 271     fRotB12[isector] = TMath::Sin(phi);
 272     fRotB21[isector] = TMath::Sin(phi);
 273     fRotB22[isector] = TMath::Cos(phi);
 274   }
 275
 276   // Initialize the SM status
 277   for (isector = 0; isector < fgkNsector; isector++) {
 278     SetSMstatus(isector,1);
 279   }
 280
 281 }
 282
 283 //_____________________________________________________________________________
 284 void AliTRDgeometry::CreatePadPlaneArray()
 285 {
 286   //
 287   // Creates the array of AliTRDpadPlane objects
 288   //
 289
 290   if (fPadPlaneArray) {
 291     fPadPlaneArray->Delete();
 292     delete fPadPlaneArray;
 293   }
 294
 295   fPadPlaneArray = new TObjArray(fgkNlayer * fgkNstack);
 296   for (Int_t ilayer = 0; ilayer < fgkNlayer; ilayer++) {
 297     for (Int_t istack = 0; istack < fgkNstack; istack++) {
 298       Int_t ipp = GetDetectorSec(ilayer,istack);
 299       fPadPlaneArray->AddAt(CreatePadPlane(ilayer,istack),ipp);
 300     }
 301   }
 302
 303 }
 304
 305 //_____________________________________________________________________________
 306 AliTRDpadPlane *AliTRDgeometry::CreatePadPlane(Int_t ilayer, Int_t istack)
 307 {
 308   //
 309   // Creates an AliTRDpadPlane object
 310   //
 311
 312   AliTRDpadPlane *padPlane = new AliTRDpadPlane();
 313
 314   padPlane->SetLayer(ilayer);
 315   padPlane->SetStack(istack);
 316
 317   padPlane->SetRowSpacing(0.0);
 318   padPlane->SetColSpacing(0.0);
 319
 320   padPlane->SetLengthRim(1.0);
 321   padPlane->SetWidthRim(0.5);
 322
 323   padPlane->SetNcols(144);
 324
 325   //
 326   // The pad plane parameter
 327   //
 328   switch (ilayer) {
 329   case 0:
 330     if (istack == 2) {
 331       // L0C0 type
 332       padPlane->SetNrows(12);
 333       padPlane->SetLength(108.0);
 334       padPlane->SetWidth(92.2);
 335       padPlane->SetLengthOPad(8.0);
 336       padPlane->SetWidthOPad(0.515);
 337       padPlane->SetLengthIPad(9.0);
 338       padPlane->SetWidthIPad(0.635);
 339       padPlane->SetTiltingAngle(2.0);
 340     }
 341     else {
 342       // L0C1 type
 343       padPlane->SetNrows(16);
 344       padPlane->SetLength(122.0);
 345       padPlane->SetWidth(92.2);
 346       padPlane->SetLengthOPad(7.5);
 347       padPlane->SetWidthOPad(0.515);
 348       padPlane->SetLengthIPad(7.5);
 349       padPlane->SetWidthIPad(0.635);
 350       padPlane->SetTiltingAngle(2.0);
 351     }
 352     break;
 353   case 1:
 354     if (istack == 2) {
 355       // L1C0 type
 356       padPlane->SetNrows(12);
 357       padPlane->SetLength(108.0);
 358       padPlane->SetWidth(96.6);
 359       padPlane->SetLengthOPad(8.0);
 360       padPlane->SetWidthOPad(0.585);
 361       padPlane->SetLengthIPad(9.0);
 362       padPlane->SetWidthIPad(0.665);
 363       padPlane->SetTiltingAngle(-2.0);
 364     }
 365     else {
 366       // L1C1 type
 367       padPlane->SetNrows(16);
 368       padPlane->SetLength(122.0);
 369       padPlane->SetWidth(96.6);
 370       padPlane->SetLengthOPad(7.5);
 371       padPlane->SetWidthOPad(0.585);
 372       padPlane->SetLengthIPad(7.5);
 373       padPlane->SetWidthIPad(0.665);
 374       padPlane->SetTiltingAngle(-2.0);
 375     }
 376     break;
 377   case 2:
 378     if (istack == 2) {
 379       // L2C0 type
 380       padPlane->SetNrows(12);
 381       padPlane->SetLength(108.0);
 382       padPlane->SetWidth(101.1);
 383       padPlane->SetLengthOPad(8.0);
 384       padPlane->SetWidthOPad(0.705);
 385       padPlane->SetLengthIPad(9.0);
 386       padPlane->SetWidthIPad(0.695);
 387       padPlane->SetTiltingAngle(2.0);
 388     }
 389     else {
 390       // L2C1 type
 391       padPlane->SetNrows(16);
 392       padPlane->SetLength(129.0);
 393       padPlane->SetWidth(101.1);
 394       padPlane->SetLengthOPad(7.5);
 395       padPlane->SetWidthOPad(0.705);
 396       padPlane->SetLengthIPad(8.0);
 397       padPlane->SetWidthIPad(0.695);
 398       padPlane->SetTiltingAngle(2.0);
 399     }
 400     break;
 401   case 3:
 402     if (istack == 2) {
 403       // L3C0 type
 404       padPlane->SetNrows(12);
 405       padPlane->SetLength(108.0);
 406       padPlane->SetWidth(105.5);
 407       padPlane->SetLengthOPad(8.0);
 408       padPlane->SetWidthOPad(0.775);
 409       padPlane->SetLengthIPad(9.0);
 410       padPlane->SetWidthIPad(0.725);
 411       padPlane->SetTiltingAngle(-2.0);
 412     }
 413     else {
 414       // L3C1 type
 415       padPlane->SetNrows(16);
 416       padPlane->SetLength(136.0);
 417       padPlane->SetWidth(105.5);
 418       padPlane->SetLengthOPad(7.5);
 419       padPlane->SetWidthOPad(0.775);
 420       padPlane->SetLengthIPad(8.5);
 421       padPlane->SetWidthIPad(0.725);
 422       padPlane->SetTiltingAngle(-2.0);
 423     }
 424     break;
 425   case 4:
 426     if (istack == 2) {
 427       // L4C0 type
 428       padPlane->SetNrows(12);
 429       padPlane->SetLength(108.0);
 430       padPlane->SetWidth(109.9);
 431       padPlane->SetLengthOPad(8.0);
 432       padPlane->SetWidthOPad(0.845);
 433       padPlane->SetLengthIPad(9.0);
 434       padPlane->SetWidthIPad(0.755);
 435       padPlane->SetTiltingAngle(2.0);
 436     }
 437     else {
 438       // L4C1 type
 439       padPlane->SetNrows(16);
 440       padPlane->SetLength(143.0);
 441       padPlane->SetWidth(109.9);
 442       padPlane->SetLengthOPad(7.5);
 443       padPlane->SetWidthOPad(0.845);
 444       padPlane->SetLengthIPad(9.0);
 445       padPlane->SetWidthIPad(0.755);
 446       padPlane->SetTiltingAngle(2.0);
 447     }
 448     break;
 449   case 5:
 450     if (istack == 2) {
 451       // L5C0 type
 452       padPlane->SetNrows(12);
 453       padPlane->SetLength(108.0);
 454       padPlane->SetWidth(114.4);
 455       padPlane->SetLengthOPad(8.0);
 456       padPlane->SetWidthOPad(0.965);
 457       padPlane->SetLengthIPad(9.0);
 458       padPlane->SetWidthIPad(0.785);
 459       padPlane->SetTiltingAngle(-2.0);
 460     }
 461     else {
 462       // L5C1 type
 463       padPlane->SetNrows(16);
 464       padPlane->SetLength(145.0);
 465       padPlane->SetWidth(114.4);
 466       padPlane->SetLengthOPad(8.5);
 467       padPlane->SetWidthOPad(0.965);
 468       padPlane->SetLengthIPad(9.0);
 469       padPlane->SetWidthIPad(0.785);
 470       padPlane->SetTiltingAngle(-2.0);
 471     }
 472     break;
 473   };
 474
 475   //
 476   // The positions of the borders of the pads
 477   //
 478   // Row direction
 479   //
 480   Double_t row = fClength[ilayer][istack] / 2.0
 481                - fgkRpadW
 482                - padPlane->GetLengthRim();
 483   for (Int_t ir = 0; ir < padPlane->GetNrows(); ir++) {
 484     padPlane->SetPadRow(ir,row);
 485     row -= padPlane->GetRowSpacing();
 486     if (ir == 0) {
 487       row -= padPlane->GetLengthOPad();
 488     }
 489     else {
 490       row -= padPlane->GetLengthIPad();
 491     }
 492   }
 493   //
 494   // Column direction
 495   //
 496   Double_t col = - fCwidth[ilayer] / 2.0
 497                  - fgkCroW
 498                  + padPlane->GetWidthRim();
 499   for (Int_t ic = 0; ic < padPlane->GetNcols(); ic++) {
 500     padPlane->SetPadCol(ic,col);
 501     col += padPlane->GetColSpacing();
 502     if (ic == 0) {
 503       col += padPlane->GetWidthOPad();
 504     }
 505     else {
 506       col += padPlane->GetWidthIPad();
 507     }
 508   }
 509   // Calculate the offset to translate from the local ROC system into
 510   // the local supermodule system, which is used for clusters
 511   Double_t rowTmp = fClength[ilayer][0]
 512                   + fClength[ilayer][1]
 513                   + fClength[ilayer][2] / 2.0;
 514   for (Int_t jstack = 0; jstack < istack; jstack++) {
 515     rowTmp -= fClength[ilayer][jstack];
 516   }
 517   padPlane->SetPadRowSMOffset(rowTmp - fClength[ilayer][istack]/2.0);
 518
 519   return padPlane;
 520
 521 }
 522
 523 //_____________________________________________________________________________
 524 void AliTRDgeometry::CreateGeometry(Int_t *idtmed)
 525 {
 526   //
 527   // Create the TRD geometry without hole
 528   //
 529   //
 530   // Names of the TRD volumina (xx = detector number):
 531   //
 532   //      Volume (Air) wrapping the readout chamber components
 533   //        UTxx    includes: UAxx, UDxx, UFxx, UUxx
 534   //
 535   //      Volume (Air) wrapping the services (fee + cooling)
 536   //        UUxx    the services volume has been reduced by 7.42 mm
 537   //                in order to allow shifts in radial direction
 538   //
 539   //      Lower part of the readout chambers (drift volume + radiator)
 540   //
 541   //        UAxx    Aluminum frames                 (Al)
 542   //        UBxx    Wacosit frames                  (C)
 543   //        UXxx    Glue around radiator            (Epoxy)
 544   //        UCxx    Inner volumes                   (Air)
 545   //        UZxx    Additional aluminum ledges      (Al)
 546   //
 547   //      Upper part of the readout chambers (readout plane + fee)
 548   //
 549   //        UDxx    Wacosit frames of amp. region   (C)
 550   //        UExx    Inner volumes of the frame      (Air)
 551   //        UFxx    Aluminum frame of back panel    (Al)
 552   //        UGxx    Inner volumes of the back panel (Air)
 553   //
 554   //      Inner material layers
 555   //
 556   //        UHxx    Radiator                        (Rohacell)
 557   //        UJxx    Drift volume                    (Xe/CO2)
 558   //        UKxx    Amplification volume            (Xe/CO2)
 559   //        UWxx    Wire plane                      (Cu)
 560   //        ULxx    Pad plane                       (Cu)
 561   //        UYxx    Glue layer                      (Epoxy)
 562   //        UMxx    Support structure               (Rohacell)
 563   //        UNxx    ROB base material               (C)
 564   //        UOxx    ROB copper                      (Cu)
 565   //        UVxx    ROB other materials             (Cu)
 566   //
 567
 568   const Int_t kNparTrd = 4;
 569   const Int_t kNparCha = 3;
 570
 571   Float_t xpos;
 572   Float_t ypos;
 573   Float_t zpos;
 574
 575   Float_t parTrd[kNparTrd];
 576   Float_t parCha[kNparCha];
 577
 578   Char_t  cTagV[6];
 579   Char_t  cTagM[5];
 580
 581   AliTRDSimParam *simParam = AliTRDSimParam::Instance();
 582
 583   // There are three TRD volumes for the supermodules in order to accomodate
 584   // the different arrangements in front of PHOS
 585   // UTR1: Default supermodule
 586   // UTR2: Supermodule in front of PHOS with double carbon cover
 587   // UTR3: As UTR2, but w/o middle stack
 588   //
 589   // The mother volume for one sector (Air), full length in z-direction
 590   // Provides material for side plates of super module
 591   parTrd[0] = fgkSwidth1/2.0;
 592   parTrd[1] = fgkSwidth2/2.0;
 593   parTrd[2] = fgkSlength/2.0;
 594   parTrd[3] = fgkSheight/2.0;
 595   gMC->Gsvolu("UTR1","TRD1",idtmed[1302-1],parTrd,kNparTrd);
 596   gMC->Gsvolu("UTR2","TRD1",idtmed[1302-1],parTrd,kNparTrd);
 597   gMC->Gsvolu("UTR3","TRD1",idtmed[1302-1],parTrd,kNparTrd);
 598   // The outer aluminum plates of the super module (Al)
 599   parTrd[0] = fgkSwidth1/2.0;
 600   parTrd[1] = fgkSwidth2/2.0;
 601   parTrd[2] = fgkSlength/2.0;
 602   parTrd[3] = fgkSheight/2.0;
 603   gMC->Gsvolu("UTS1","TRD1",idtmed[1301-1],parTrd,kNparTrd);
 604   gMC->Gsvolu("UTS2","TRD1",idtmed[1301-1],parTrd,kNparTrd);
 605   gMC->Gsvolu("UTS3","TRD1",idtmed[1301-1],parTrd,kNparTrd);
 606   // The inner part of the TRD mother volume for one sector (Air),
 607   // full length in z-direction
 608   parTrd[0] = fgkSwidth1/2.0 - fgkSMpltT;
 609   parTrd[1] = fgkSwidth2/2.0 - fgkSMpltT;
 610   parTrd[2] = fgkSlength/2.0;
 611   parTrd[3] = fgkSheight/2.0 - fgkSMpltT;
 612   gMC->Gsvolu("UTI1","TRD1",idtmed[1302-1],parTrd,kNparTrd);
 613   gMC->Gsvolu("UTI2","TRD1",idtmed[1302-1],parTrd,kNparTrd);
 614   gMC->Gsvolu("UTI3","TRD1",idtmed[1302-1],parTrd,kNparTrd);
 615
 616   // The inner part of the TRD mother volume for services in front
 617   // of the supermodules  (Air),
 618   parTrd[0] = fgkSwidth1/2.0;
 619   parTrd[1] = fgkSwidth2/2.0;
 620   parTrd[2] = fgkFlength/2.0;
 621   parTrd[3] = fgkSheight/2.0;
 622   gMC->Gsvolu("UTF1","TRD1",idtmed[1302-1],parTrd,kNparTrd);
 623   gMC->Gsvolu("UTF2","TRD1",idtmed[1302-1],parTrd,kNparTrd);
 624
 625   for (Int_t istack = 0; istack < kNstack; istack++) {
 626     for (Int_t ilayer = 0; ilayer < kNlayer; ilayer++) {
 627
 628       Int_t iDet = GetDetectorSec(ilayer,istack);
 629
 630       // The lower part of the readout chambers (drift volume + radiator)
 631       // The aluminum frames
 632       sprintf(cTagV,"UA%02d",iDet);
 633       parCha[0] = fCwidth[ilayer]/2.0;
 634       parCha[1] = fClength[ilayer][istack]/2.0 - fgkHspace/2.0;
 635       parCha[2] = fgkCraH/2.0 + fgkCdrH/2.0;
 636       fChamberUAboxd[iDet][0] = parCha[0];
 637       fChamberUAboxd[iDet][1] = parCha[1];
 638       fChamberUAboxd[iDet][2] = parCha[2];
 639       gMC->Gsvolu(cTagV,"BOX ",idtmed[1301-1],parCha,kNparCha);
 640       // The additional aluminum on the frames
 641       // This part has not the correct postion but is just supposed to
 642       // represent the missing material. The correct form of the L-shaped
 643       // profile would not fit into the alignable volume.
 644       sprintf(cTagV,"UZ%02d",iDet);
 645       parCha[0] = fgkCroW/2.0;
 646       parCha[1] = fClength[ilayer][istack]/2.0 - fgkHspace/2.0;
 647       parCha[2] = fgkCalW/2.0;
 648       fChamberUAboxd[iDet][0] = fChamberUAboxd[iDet][0] + fgkCroW;
 649       gMC->Gsvolu(cTagV,"BOX ",idtmed[1301-1],parCha,kNparCha);
 650       // The Wacosit frames
 651       sprintf(cTagV,"UB%02d",iDet);
 652       parCha[0] = fCwidth[ilayer]/2.0 - fgkCalT;
 653       parCha[1] = -1.0;
 654       parCha[2] = -1.0;
 655       gMC->Gsvolu(cTagV,"BOX ",idtmed[1307-1],parCha,kNparCha);
 656       // The glue around the radiator
 657       sprintf(cTagV,"UX%02d",iDet);
 658       parCha[0] = fCwidth[ilayer]/2.0 - fgkCalT - fgkCclsT;
 659       parCha[1] = fClength[ilayer][istack]/2.0 - fgkHspace/2.0 - fgkCclfT;
 660       parCha[2] = fgkCraH/2.0;
 661       gMC->Gsvolu(cTagV,"BOX ",idtmed[1311-1],parCha,kNparCha);
 662       // The inner part of radiator (air)
 663       sprintf(cTagV,"UC%02d",iDet);
 664       parCha[0] = fCwidth[ilayer]/2.0 - fgkCalT - fgkCclsT - fgkCglT;
 665       parCha[1] = fClength[ilayer][istack]/2.0 - fgkHspace/2.0 - fgkCclfT - fgkCglT;
 666       parCha[2] = -1.0;
 667       gMC->Gsvolu(cTagV,"BOX ",idtmed[1302-1],parCha,kNparCha);
 668
 669       // The upper part of the readout chambers (amplification volume)
 670       // The Wacosit frames
 671       sprintf(cTagV,"UD%02d",iDet);
 672       parCha[0] = fCwidth[ilayer]/2.0 + fgkCroW;
 673       parCha[1] = fClength[ilayer][istack]/2.0 - fgkHspace/2.0;
 674       parCha[2] = fgkCamH/2.0;
 675       fChamberUDboxd[iDet][0] = parCha[0];
 676       fChamberUDboxd[iDet][1] = parCha[1];
 677       fChamberUDboxd[iDet][2] = parCha[2];
 678       gMC->Gsvolu(cTagV,"BOX ",idtmed[1307-1],parCha,kNparCha);
 679       // The inner part of the Wacosit frame (air)
 680       sprintf(cTagV,"UE%02d",iDet);
 681       parCha[0] = fCwidth[ilayer]/2.0 + fgkCroW - fgkCcuT;
 682       parCha[1] = fClength[ilayer][istack]/2.0 - fgkHspace/2.0 - fgkCcuT;
 683       parCha[2] = -1.;
 684       gMC->Gsvolu(cTagV,"BOX ",idtmed[1302-1],parCha,kNparCha);
 685
 686       // The support structure (pad plane, back panel, readout boards)
 687       // The aluminum frames
 688       sprintf(cTagV,"UF%02d",iDet);
 689       parCha[0] = fCwidth[ilayer]/2.0 + fgkCroW;
 690       parCha[1] = fClength[ilayer][istack]/2.0 - fgkHspace/2.0;
 691       parCha[2] = fgkCroH/2.0;
 692       fChamberUFboxd[iDet][0] = parCha[0];
 693       fChamberUFboxd[iDet][1] = parCha[1];
 694       fChamberUFboxd[iDet][2] = parCha[2];
 695       gMC->Gsvolu(cTagV,"BOX ",idtmed[1301-1],parCha,kNparCha);
 696       // The inner part of the aluminum frames
 697       sprintf(cTagV,"UG%02d",iDet);
 698       parCha[0] = fCwidth[ilayer]/2.0 + fgkCroW - fgkCauT;
 699       parCha[1] = fClength[ilayer][istack]/2.0 - fgkHspace/2.0 - fgkCauT;
 700       parCha[2] = -1.0;
 701       gMC->Gsvolu(cTagV,"BOX ",idtmed[1302-1],parCha,kNparCha);
 702
 703       // The material layers inside the chambers
 704       // Rohacell layer (radiator)
 705       parCha[0] = -1.0;
 706       parCha[1] = -1.0;
 707       parCha[2] = fgkRaThick/2.0;
 708       sprintf(cTagV,"UH%02d",iDet);
 709       gMC->Gsvolu(cTagV,"BOX ",idtmed[1315-1],parCha,kNparCha);
 710       // Xe/Isobutane layer (drift volume)
 711       parCha[0] = fCwidth[ilayer]/2.0 - fgkCalT - fgkCclsT;
 712       parCha[1] = fClength[ilayer][istack]/2.0 - fgkHspace/2.0 - fgkCclfT;
 713       parCha[2] = fgkDrThick/2.0;
 714       sprintf(cTagV,"UJ%02d",iDet);
 715       gMC->Gsvolu(cTagV,"BOX ",idtmed[1309-1],parCha,kNparCha);
 716       // Xe/Isobutane layer (amplification volume)
 717       parCha[0] = -1.0;
 718       parCha[1] = -1.0;
 719       parCha[2] = fgkAmThick/2.0;
 720       sprintf(cTagV,"UK%02d",iDet);
 721       gMC->Gsvolu(cTagV,"BOX ",idtmed[1309-1],parCha,kNparCha);
 722       // Cu layer (wire plane)
 723       parCha[0] = -1.0;
 724       parCha[1] = -1.0;
 725       parCha[2] = fgkWrThick/2.0;
 726       sprintf(cTagV,"UW%02d",iDet);
 727       gMC->Gsvolu(cTagV,"BOX ",idtmed[1303-1],parCha,kNparCha);
 728       // Cu layer (pad plane)
 729       parCha[0] = -1.0;
 730       parCha[1] = -1.0;
 731       parCha[2] = fgkCuThick/2.0;
 732       sprintf(cTagV,"UL%02d",iDet);
 733       gMC->Gsvolu(cTagV,"BOX ",idtmed[1305-1],parCha,kNparCha);
 734       // Epoxy layer (glue)
 735       parCha[0] = -1.0;
 736       parCha[1] = -1.0;
 737       parCha[2] = fgkGlThick/2.0;
 738       sprintf(cTagV,"UY%02d",iDet);
 739       gMC->Gsvolu(cTagV,"BOX ",idtmed[1311-1],parCha,kNparCha);
 740       // G10 layer (support structure / honeycomb)
 741       parCha[0] = -1.0;
 742       parCha[1] = -1.0;
 743       parCha[2] = fgkSuThick/2.0;
 744       sprintf(cTagV,"UM%02d",iDet);
 745       gMC->Gsvolu(cTagV,"BOX ",idtmed[1310-1],parCha,kNparCha);
 746       // G10 layer (PCB readout board)
 747       parCha[0] = -1.0;
 748       parCha[1] = -1.0;
 749       parCha[2] = fgkRpThick/2;
 750       sprintf(cTagV,"UN%02d",iDet);
 751       gMC->Gsvolu(cTagV,"BOX ",idtmed[1313-1],parCha,kNparCha);
 752       // Cu layer (traces in readout board)
 753       parCha[0] = -1.0;
 754       parCha[1] = -1.0;
 755       parCha[2] = fgkRcThick/2.0;
 756       sprintf(cTagV,"UO%02d",iDet);
 757       gMC->Gsvolu(cTagV,"BOX ",idtmed[1306-1],parCha,kNparCha);
 758       // Cu layer (other material on in readout board)
 759       parCha[0] = -1.0;
 760       parCha[1] = -1.0;
 761       parCha[2] = fgkRoThick/2.0;
 762       sprintf(cTagV,"UV%02d",iDet);
 763       gMC->Gsvolu(cTagV,"BOX ",idtmed[1304-1],parCha,kNparCha);
 764
 765       // Position the layers in the chambers
 766       xpos = 0.0;
 767       ypos = 0.0;
 768       // Lower part
 769       // Rohacell layer (radiator)
 770       zpos = fgkRaZpos;
 771       sprintf(cTagV,"UH%02d",iDet);
 772       sprintf(cTagM,"UC%02d",iDet);
 773       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 774       // Xe/Isobutane layer (drift volume)
 775       zpos = fgkDrZpos;
 776       sprintf(cTagV,"UJ%02d",iDet);
 777       sprintf(cTagM,"UB%02d",iDet);
 778       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 779       // Upper part
 780       // Xe/Isobutane layer (amplification volume)
 781       zpos = fgkAmZpos;
 782       sprintf(cTagV,"UK%02d",iDet);
 783       sprintf(cTagM,"UE%02d",iDet);
 784       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 785       // Cu layer (wire plane inside amplification volume)
 786       zpos = fgkWrZpos;
 787       sprintf(cTagV,"UW%02d",iDet);
 788       sprintf(cTagM,"UK%02d",iDet);
 789       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 790       // Readout part + support plane
 791       // Cu layer (pad plane)
 792       zpos = fgkCuZpos;
 793       sprintf(cTagV,"UL%02d",iDet);
 794       sprintf(cTagM,"UG%02d",iDet);
 795       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 796       // Epoxy layer (glue)
 797       zpos = fgkGlZpos;
 798       sprintf(cTagV,"UY%02d",iDet);
 799       sprintf(cTagM,"UG%02d",iDet);
 800       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 801       // G10 layer (support structure)
 802       zpos = fgkSuZpos;
 803       sprintf(cTagV,"UM%02d",iDet);
 804       sprintf(cTagM,"UG%02d",iDet);
 805       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 806       // G10 layer (PCB readout board)
 807       zpos = fgkRpZpos;
 808       sprintf(cTagV,"UN%02d",iDet);
 809       sprintf(cTagM,"UG%02d",iDet);
 810       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 811       // Cu layer (traces in readout board)
 812       zpos = fgkRcZpos;
 813       sprintf(cTagV,"UO%02d",iDet);
 814       sprintf(cTagM,"UG%02d",iDet);
 815       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 816       // Cu layer (other materials on readout board)
 817       zpos = fgkRoZpos;
 818       sprintf(cTagV,"UV%02d",iDet);
 819       sprintf(cTagM,"UG%02d",iDet);
 820       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 821
 822       // Position the inner volumes of the chambers in the frames
 823       xpos = 0.0;
 824       ypos = 0.0;
 825       // The inner part of the radiator
 826       zpos = 0.0;
 827       sprintf(cTagV,"UC%02d",iDet);
 828       sprintf(cTagM,"UX%02d",iDet);
 829       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 830       // The glue around the radiator
 831       zpos = fgkCraH/2.0 - fgkCdrH/2.0 - fgkCraH/2.0;
 832       sprintf(cTagV,"UX%02d",iDet);
 833       sprintf(cTagM,"UB%02d",iDet);
 834       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 835       // The lower Wacosit frame inside the aluminum frame
 836       zpos = 0.0;
 837       sprintf(cTagV,"UB%02d",iDet);
 838       sprintf(cTagM,"UA%02d",iDet);
 839       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 840       // The inside of the upper Wacosit frame
 841       zpos = 0.0;
 842       sprintf(cTagV,"UE%02d",iDet);
 843       sprintf(cTagM,"UD%02d",iDet);
 844       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 845       // The inside of the upper aluminum frame
 846       zpos = 0.0;
 847       sprintf(cTagV,"UG%02d",iDet);
 848       sprintf(cTagM,"UF%02d",iDet);
 849       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 850
 851       // Position the frames of the chambers in the TRD mother volume
 852       xpos  = 0.0;
 853       ypos  = fClength[ilayer][0] + fClength[ilayer][1] + fClength[ilayer][2]/2.0;
 854       for (Int_t ic = 0; ic < istack; ic++) {
 855         ypos -= fClength[ilayer][ic];
 856       }
 857       ypos -= fClength[ilayer][istack]/2.0;
 858       zpos  = fgkVrocsm + fgkSMpltT + fgkCraH/2.0 + fgkCdrH/2.0 - fgkSheight/2.0
 859             + ilayer * (fgkCH + fgkVspace);
 860       // The lower aluminum frame, radiator + drift region
 861       sprintf(cTagV,"UA%02d",iDet);
 862       fChamberUAorig[iDet][0] = xpos;
 863       fChamberUAorig[iDet][1] = ypos;
 864       fChamberUAorig[iDet][2] = zpos;
 865       // The upper G10 frame, amplification region
 866       sprintf(cTagV,"UD%02d",iDet);
 867       zpos += fgkCamH/2.0 + fgkCraH/2.0 + fgkCdrH/2.0;
 868       fChamberUDorig[iDet][0] = xpos;
 869       fChamberUDorig[iDet][1] = ypos;
 870       fChamberUDorig[iDet][2] = zpos;
 871       // The upper aluminum frame
 872       sprintf(cTagV,"UF%02d",iDet);
 873       zpos += fgkCroH/2.0 + fgkCamH/2.0;
 874       fChamberUForig[iDet][0] = xpos;
 875       fChamberUForig[iDet][1] = ypos;
 876       fChamberUForig[iDet][2] = zpos;
 877
 878     }
 879   }
 880
 881   // Create the volumes of the super module frame
 882   CreateFrame(idtmed);
 883
 884   // Create the volumes of the services
 885   CreateServices(idtmed);
 886
 887   for (Int_t istack = 0; istack < kNstack; istack++) {
 888     for (Int_t ilayer = 0; ilayer < kNlayer; ilayer++) {
 889       GroupChamber(ilayer,istack,idtmed);
 890     }
 891   }
 892
 893   xpos = 0.0;
 894   ypos = 0.0;
 895   zpos = 0.0;
 896   gMC->Gspos("UTI1",1,"UTS1",xpos,ypos,zpos,0,"ONLY");
 897   gMC->Gspos("UTI2",1,"UTS2",xpos,ypos,zpos,0,"ONLY");
 898   gMC->Gspos("UTI3",1,"UTS3",xpos,ypos,zpos,0,"ONLY");
 899
 900   xpos = 0.0;
 901   ypos = 0.0;
 902   zpos = 0.0;
 903   gMC->Gspos("UTS1",1,"UTR1",xpos,ypos,zpos,0,"ONLY");
 904   gMC->Gspos("UTS2",1,"UTR2",xpos,ypos,zpos,0,"ONLY");
 905   gMC->Gspos("UTS3",1,"UTR3",xpos,ypos,zpos,0,"ONLY");
 906
 907   // Put the TRD volumes into the space frame mother volumes
 908   // if enabled via status flag
 909   xpos = 0.0;
 910   ypos = 0.0;
 911   zpos = 0.0;
 912   for (Int_t isector = 0; isector < kNsector; isector++) {
 913     if (fSMstatus[isector]) {
 914       sprintf(cTagV,"BTRD%d",isector);
 915       switch (isector) {
 916       case 13:
 917       case 14:
 918       case 15:
 919         // Double carbon, w/o middle stack
 920         gMC->Gspos("UTR3",1,cTagV,xpos,ypos,zpos,0,"ONLY");
 921         break;
 922       case 11:
 923       case 12:
 924         // Double carbon, all stacks
 925         gMC->Gspos("UTR2",1,cTagV,xpos,ypos,zpos,0,"ONLY");
 926         break;
 927       default:
 928         // Standard supermodule
 929         gMC->Gspos("UTR1",1,cTagV,xpos,ypos,zpos,0,"ONLY");
 930       };
 931     }
 932   }
 933
 934   // Put the TRD volumes into the space frame mother volumes
 935   // if enabled via status flag
 936   xpos = 0.0;
 937   ypos = 0.5*fgkSlength + 0.5*fgkFlength;
 938   zpos = 0.0;
 939   for (Int_t isector = 0; isector < kNsector; isector++) {
 940     if (fSMstatus[isector]) {
 941       sprintf(cTagV,"BTRD%d",isector);
 942       gMC->Gspos("UTF1",1,cTagV,xpos, ypos,zpos,0,"ONLY");
 943       gMC->Gspos("UTF2",1,cTagV,xpos,-ypos,zpos,0,"ONLY");
 944     }
 945   }
 946
 947 }
 948
 949 //_____________________________________________________________________________
 950 void AliTRDgeometry::CreateFrame(Int_t *idtmed)
 951 {
 952   //
 953   // Create the geometry of the frame of the supermodule
 954   //
 955   // Names of the TRD services volumina
 956   //
 957   //        USRL    Support rails for the chambers (Al)
 958   //        USxx    Support cross bars between the chambers (Al)
 959   //        USHx    Horizontal connection between the cross bars (Al)
 960   //        USLx    Long corner ledges (Al)
 961   //
 962
 963   Int_t   ilayer = 0;
 964
 965   Float_t xpos  = 0.0;
 966   Float_t ypos  = 0.0;
 967   Float_t zpos  = 0.0;
 968
 969   Char_t  cTagV[5];
 970   Char_t  cTagM[5];
 971
 972   const Int_t kNparTRD = 4;
 973   Float_t parTRD[kNparTRD];
 974   const Int_t kNparBOX = 3;
 975   Float_t parBOX[kNparBOX];
 976   const Int_t kNparTRP = 11;
 977   Float_t parTRP[kNparTRP];
 978
 979   // The rotation matrices
 980   const Int_t kNmatrix = 6;
 981   Int_t   matrix[kNmatrix];
 982   gMC->Matrix(matrix[0], 100.0,   0.0,  90.0,  90.0,  10.0,   0.0);
 983   gMC->Matrix(matrix[1],  80.0,   0.0,  90.0,  90.0,  10.0, 180.0);
 984   gMC->Matrix(matrix[2],  90.0,   0.0,   0.0,   0.0,  90.0,  90.0);
 985   gMC->Matrix(matrix[3],  90.0, 180.0,   0.0, 180.0,  90.0,  90.0);
 986   gMC->Matrix(matrix[4], 170.0,   0.0,  80.0,   0.0,  90.0,  90.0);
 987   gMC->Matrix(matrix[5], 170.0, 180.0,  80.0, 180.0,  90.0,  90.0);
 988   gMC->Matrix(matrix[6], 180.0, 180.0,  90.0, 180.0,  90.0,  90.0);
 989
 990   //
 991   // The carbon inserts in the top/bottom aluminum plates
 992   //
 993
 994   const Int_t kNparCrb = 3;
 995   Float_t parCrb[kNparCrb];
 996   parCrb[0] = 0.0;
 997   parCrb[1] = 0.0;
 998   parCrb[2] = 0.0;
 999   gMC->Gsvolu("USCR","BOX ",idtmed[1307-1],parCrb,0);
1000   // Bottom 1 (all sectors)
1001   parCrb[0] =  77.49/2.0;
1002   parCrb[1] = 104.60/2.0;
1003   parCrb[2] = fgkSMpltT/2.0;
1004   xpos      =   0.0;
1005   ypos      =   0.0;
1006   zpos      = fgkSMpltT/2.0 - fgkSheight/2.0;
1007   gMC->Gsposp("USCR", 1,"UTS1", xpos, ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1008   gMC->Gsposp("USCR", 2,"UTS2", xpos, ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1009   gMC->Gsposp("USCR", 3,"UTS3", xpos, ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1010   // Bottom 2 (all sectors)
1011   parCrb[0] =  77.49/2.0;
1012   parCrb[1] =  55.80/2.0;
1013   parCrb[2] = fgkSMpltT/2.0;
1014   xpos      =   0.0;
1015   ypos      =  85.6;
1016   zpos      = fgkSMpltT/2.0 - fgkSheight/2.0;
1017   gMC->Gsposp("USCR", 4,"UTS1", xpos, ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1018   gMC->Gsposp("USCR", 5,"UTS2", xpos, ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1019   gMC->Gsposp("USCR", 6,"UTS3", xpos, ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1020   gMC->Gsposp("USCR", 7,"UTS1", xpos,-ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1021   gMC->Gsposp("USCR", 8,"UTS2", xpos,-ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1022   gMC->Gsposp("USCR", 9,"UTS3", xpos,-ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1023   // Bottom 3 (all sectors)
1024   parCrb[0] =  77.49/2.0;
1025   parCrb[1] =  56.00/2.0;
1026   parCrb[2] = fgkSMpltT/2.0;
1027   xpos      =   0.0;
1028   ypos      = 148.5;
1029   zpos      = fgkSMpltT/2.0 - fgkSheight/2.0;
1030   gMC->Gsposp("USCR",10,"UTS1", xpos, ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1031   gMC->Gsposp("USCR",11,"UTS2", xpos, ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1032   gMC->Gsposp("USCR",12,"UTS3", xpos, ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1033   gMC->Gsposp("USCR",13,"UTS1", xpos,-ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1034   gMC->Gsposp("USCR",14,"UTS2", xpos,-ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1035   gMC->Gsposp("USCR",15,"UTS3", xpos,-ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1036   // Bottom 4 (all sectors)
1037   parCrb[0] =  77.49/2.0;
1038   parCrb[1] = 118.00/2.0;
1039   parCrb[2] = fgkSMpltT/2.0;
1040   xpos      =   0.0;
1041   ypos      = 240.5;
1042   zpos      = fgkSMpltT/2.0 - fgkSheight/2.0;
1043   gMC->Gsposp("USCR",16,"UTS1", xpos, ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1044   gMC->Gsposp("USCR",17,"UTS2", xpos, ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1045   gMC->Gsposp("USCR",18,"UTS3", xpos, ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1046   gMC->Gsposp("USCR",19,"UTS1", xpos,-ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1047   gMC->Gsposp("USCR",20,"UTS2", xpos,-ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1048   gMC->Gsposp("USCR",21,"UTS3", xpos,-ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1049   // Top 1 (only in front of PHOS)
1050   parCrb[0] = 111.48/2.0;
1051   parCrb[1] = 105.00/2.0;
1052   parCrb[2] = fgkSMpltT/2.0;
1053   xpos      =   0.0;
1054   ypos      =   0.0;
1055   zpos      = fgkSMpltT/2.0 - fgkSheight/2.0;
1056   gMC->Gsposp("USCR",22,"UTS2", xpos, ypos,-zpos,0,"ONLY",parCrb,kNparCrb);
1057   gMC->Gsposp("USCR",23,"UTS3", xpos, ypos,-zpos,0,"ONLY",parCrb,kNparCrb);
1058   // Top 2 (only in front of PHOS)
1059   parCrb[0] = 111.48/2.0;
1060   parCrb[1] =  56.00/2.0;
1061   parCrb[2] = fgkSMpltT/2.0;
1062   xpos      =   0.0;
1063   ypos      =  85.5;
1064   zpos      = fgkSMpltT/2.0 - fgkSheight/2.0;
1065   gMC->Gsposp("USCR",24,"UTS2", xpos, ypos,-zpos,0,"ONLY",parCrb,kNparCrb);
1066   gMC->Gsposp("USCR",25,"UTS3", xpos, ypos,-zpos,0,"ONLY",parCrb,kNparCrb);
1067   gMC->Gsposp("USCR",26,"UTS2", xpos,-ypos,-zpos,0,"ONLY",parCrb,kNparCrb);
1068   gMC->Gsposp("USCR",27,"UTS3", xpos,-ypos,-zpos,0,"ONLY",parCrb,kNparCrb);
1069
1070   //
1071   // The chamber support rails
1072   //
1073
1074   const Float_t kSRLwid  = 2.00;
1075   const Float_t kSRLhgt  = 2.3;
1076   const Float_t kSRLdst  = 1.0;
1077   const Int_t   kNparSRL = 3;
1078   Float_t parSRL[kNparSRL];
1079   parSRL[0] = kSRLwid   /2.0;
1080   parSRL[1] = fgkSlength/2.0;
1081   parSRL[2] = kSRLhgt   /2.0;
1082   gMC->Gsvolu("USRL","BOX ",idtmed[1301-1],parSRL,kNparSRL);
1083
1084   xpos  = 0.0;
1085   ypos  = 0.0;
1086   zpos  = 0.0;
1087   for (ilayer = 0; ilayer < kNlayer; ilayer++) {
1088     xpos  = fCwidth[ilayer]/2.0 + kSRLwid/2.0 + kSRLdst;
1089     ypos  = 0.0;
1090     zpos  = fgkVrocsm + fgkSMpltT + fgkCraH + fgkCdrH + fgkCamH
1091           - fgkSheight/2.0
1092           + ilayer * (fgkCH + fgkVspace);
1093     gMC->Gspos("USRL",ilayer+1          ,"UTI1", xpos,ypos,zpos,0,"ONLY");
1094     gMC->Gspos("USRL",ilayer+1+  kNlayer,"UTI1",-xpos,ypos,zpos,0,"ONLY");
1095     gMC->Gspos("USRL",ilayer+1+2*kNlayer,"UTI2", xpos,ypos,zpos,0,"ONLY");
1096     gMC->Gspos("USRL",ilayer+1+3*kNlayer,"UTI2",-xpos,ypos,zpos,0,"ONLY");
1097     gMC->Gspos("USRL",ilayer+1+4*kNlayer,"UTI3", xpos,ypos,zpos,0,"ONLY");
1098     gMC->Gspos("USRL",ilayer+1+5*kNlayer,"UTI3",-xpos,ypos,zpos,0,"ONLY");
1099   }
1100
1101   //
1102   // The cross bars between the chambers
1103   //
1104
1105   const Float_t kSCBwid  = 1.0;
1106   const Float_t kSCBthk  = 2.0;
1107   const Float_t kSCHhgt  = 0.3;
1108
1109   const Int_t   kNparSCB = 3;
1110   Float_t parSCB[kNparSCB];
1111   parSCB[1] = kSCBwid/2.0;
1112   parSCB[2] = fgkCH  /2.0 + fgkVspace/2.0 - kSCHhgt;
1113
1114   const Int_t   kNparSCI = 3;
1115   Float_t parSCI[kNparSCI];
1116   parSCI[1] = -1;
1117
1118   xpos  = 0.0;
1119   ypos  = 0.0;
1120   zpos  = 0.0;
1121   for (ilayer = 0; ilayer < kNlayer; ilayer++) {
1122
1123     // The aluminum of the cross bars
1124     parSCB[0] = fCwidth[ilayer]/2.0 + kSRLdst/2.0;
1125     sprintf(cTagV,"USF%01d",ilayer);
1126     gMC->Gsvolu(cTagV,"BOX ",idtmed[1301-1],parSCB,kNparSCB);
1127
1128     // The empty regions in the cross bars
1129     Float_t thkSCB = kSCBthk;
1130     if (ilayer < 2) {
1131       thkSCB *= 1.5;
1132     }
1133     parSCI[2] = parSCB[2] - thkSCB;
1134     parSCI[0] = parSCB[0]/4.0 - kSCBthk;
1135     sprintf(cTagV,"USI%01d",ilayer);
1136     gMC->Gsvolu(cTagV,"BOX ",idtmed[1302-1],parSCI,kNparSCI);
1137
1138     sprintf(cTagV,"USI%01d",ilayer);
1139     sprintf(cTagM,"USF%01d",ilayer);
1140     ypos  = 0.0;
1141     zpos  = 0.0;
1142     xpos  =   parSCI[0] + thkSCB/2.0;
1143     gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
1144     xpos  = - parSCI[0] - thkSCB/2.0;
1145     gMC->Gspos(cTagV,2,cTagM,xpos,ypos,zpos,0,"ONLY");
1146     xpos  =   3.0 * parSCI[0] + 1.5 * thkSCB;
1147     gMC->Gspos(cTagV,3,cTagM,xpos,ypos,zpos,0,"ONLY");
1148     xpos  = - 3.0 * parSCI[0] - 1.5 * thkSCB;
1149     gMC->Gspos(cTagV,4,cTagM,xpos,ypos,zpos,0,"ONLY");
1150
1151     sprintf(cTagV,"USF%01d",ilayer);
1152     xpos  = 0.0;
1153     zpos  = fgkVrocsm + fgkSMpltT + parSCB[2] - fgkSheight/2.0
1154           + ilayer * (fgkCH + fgkVspace);
1155
1156     ypos  =   fClength[ilayer][2]/2.0 + fClength[ilayer][1];
1157     gMC->Gspos(cTagV, 1,"UTI1", xpos,ypos,zpos,0,"ONLY");
1158     gMC->Gspos(cTagV, 3,"UTI2", xpos,ypos,zpos,0,"ONLY");
1159     gMC->Gspos(cTagV, 5,"UTI3", xpos,ypos,zpos,0,"ONLY");
1160
1161     ypos  = - fClength[ilayer][2]/2.0 - fClength[ilayer][1];
1162     gMC->Gspos(cTagV, 2,"UTI1", xpos,ypos,zpos,0,"ONLY");
1163     gMC->Gspos(cTagV, 4,"UTI2", xpos,ypos,zpos,0,"ONLY");
1164     gMC->Gspos(cTagV, 6,"UTI3", xpos,ypos,zpos,0,"ONLY");
1165
1166   }
1167
1168   //
1169   // The horizontal connections between the cross bars
1170   //
1171
1172   const Int_t   kNparSCH = 3;
1173   Float_t parSCH[kNparSCH];
1174
1175   for (ilayer = 1; ilayer < kNlayer-1; ilayer++) {
1176
1177     parSCH[0] = fCwidth[ilayer]/2.0;
1178     parSCH[1] = (fClength[ilayer+1][2]/2.0 + fClength[ilayer+1][1]
1179                - fClength[ilayer  ][2]/2.0 - fClength[ilayer  ][1])/2.0;
1180     parSCH[2] = kSCHhgt/2.0;
1181
1182     sprintf(cTagV,"USH%01d",ilayer);
1183     gMC->Gsvolu(cTagV,"BOX ",idtmed[1301-1],parSCH,kNparSCH);
1184     xpos  = 0.0;
1185     ypos  = fClength[ilayer][2]/2.0 + fClength[ilayer][1] + parSCH[1];
1186     zpos  = fgkVrocsm + fgkSMpltT - kSCHhgt/2.0 - fgkSheight/2.0
1187           + (ilayer+1) * (fgkCH + fgkVspace);
1188     gMC->Gspos(cTagV,1,"UTI1", xpos,ypos,zpos,0,"ONLY");
1189     gMC->Gspos(cTagV,3,"UTI2", xpos,ypos,zpos,0,"ONLY");
1190     gMC->Gspos(cTagV,5,"UTI3", xpos,ypos,zpos,0,"ONLY");
1191     ypos  = -ypos;
1192     gMC->Gspos(cTagV,2,"UTI1", xpos,ypos,zpos,0,"ONLY");
1193     gMC->Gspos(cTagV,4,"UTI2", xpos,ypos,zpos,0,"ONLY");
1194     gMC->Gspos(cTagV,6,"UTI3", xpos,ypos,zpos,0,"ONLY");
1195
1196   }
1197
1198   //
1199   // The aymmetric flat frame in the middle
1200   //
1201
1202   // The envelope volume (aluminum)
1203   parTRD[0]  =  87.60/2.0;
1204   parTRD[1]  = 114.00/2.0;
1205   parTRD[2]  =   1.20/2.0;
1206   parTRD[3]  =  71.30/2.0;
1207   gMC->Gsvolu("USDB","TRD1",idtmed[1301-1],parTRD,kNparTRD);
1208   // Empty spaces (air)
1209   parTRP[ 0] =   1.20/2.0;
1210   parTRP[ 1] =   0.0;
1211   parTRP[ 2] =   0.0;
1212   parTRP[ 3] =  27.00/2.0;
1213   parTRP[ 4] =  50.60/2.0;
1214   parTRP[ 5] =   5.00/2.0;
1215   parTRP[ 6] =   3.5;
1216   parTRP[ 7] =  27.00/2.0;
1217   parTRP[ 8] =  50.60/2.0;
1218   parTRP[ 9] =   5.00/2.0;
1219   parTRP[10] =   3.5;
1220   gMC->Gsvolu("USD1","TRAP",idtmed[1302-1],parTRP,kNparTRP);
1221   xpos       =  18.0;
1222   ypos       =   0.0;
1223   zpos       =   27.00/2.0 - 71.3/2.0;
1224   gMC->Gspos("USD1",1,"USDB", xpos, ypos, zpos,matrix[2],"ONLY");
1225   // Empty spaces (air)
1226   parTRP[ 0] =   1.20/2.0;
1227   parTRP[ 1] =   0.0;
1228   parTRP[ 2] =   0.0;
1229   parTRP[ 3] =  33.00/2.0;
1230   parTRP[ 4] =   5.00/2.0;
1231   parTRP[ 5] =  62.10/2.0;
1232   parTRP[ 6] =   3.5;
1233   parTRP[ 7] =  33.00/2.0;
1234   parTRP[ 8] =   5.00/2.0;
1235   parTRP[ 9] =  62.10/2.0;
1236   parTRP[10] =   3.5;
1237   gMC->Gsvolu("USD2","TRAP",idtmed[1302-1],parTRP,kNparTRP);
1238   xpos       =  21.0;
1239   ypos       =   0.0;
1240   zpos       =  71.3/2.0 - 33.0/2.0;
1241   gMC->Gspos("USD2",1,"USDB", xpos, ypos, zpos,matrix[2],"ONLY");
1242   // Empty spaces (air)
1243   parBOX[ 0] =  22.50/2.0;
1244   parBOX[ 1] =   1.20/2.0;
1245   parBOX[ 2] =  70.50/2.0;
1246   gMC->Gsvolu("USD3","BOX ",idtmed[1302-1],parBOX,kNparBOX);
1247   xpos       = -25.75;
1248   ypos       =   0.0;
1249   zpos       =   0.4;
1250   gMC->Gspos("USD3",1,"USDB", xpos, ypos, zpos,        0,"ONLY");
1251   // Empty spaces (air)
1252   parTRP[ 0] =   1.20/2.0;
1253   parTRP[ 1] =   0.0;
1254   parTRP[ 2] =   0.0;
1255   parTRP[ 3] =  25.50/2.0;
1256   parTRP[ 4] =   5.00/2.0;
1257   parTRP[ 5] =  65.00/2.0;
1258   parTRP[ 6] =  -1.0;
1259   parTRP[ 7] =  25.50/2.0;
1260   parTRP[ 8] =   5.00/2.0;
1261   parTRP[ 9] =  65.00/2.0;
1262   parTRP[10] =  -1.0;
1263   gMC->Gsvolu("USD4","TRAP",idtmed[1302-1],parTRP,kNparTRP);
1264   xpos       =   2.0;
1265   ypos       =   0.0;
1266   zpos       =  -1.6;
1267   gMC->Gspos("USD4",1,"USDB", xpos, ypos, zpos,matrix[6],"ONLY");
1268   // Empty spaces (air)
1269   parTRP[ 0] =   1.20/2.0;
1270   parTRP[ 1] =   0.0;
1271   parTRP[ 2] =   0.0;
1272   parTRP[ 3] =  23.50/2.0;
1273   parTRP[ 4] =  63.50/2.0;
1274   parTRP[ 5] =   5.00/2.0;
1275   parTRP[ 6] =  16.0;
1276   parTRP[ 7] =  23.50/2.0;
1277   parTRP[ 8] =  63.50/2.0;
1278   parTRP[ 9] =   5.00/2.0;
1279   parTRP[10] =  16.0;
1280   gMC->Gsvolu("USD5","TRAP",idtmed[1302-1],parTRP,kNparTRP);
1281   xpos       =  36.5;
1282   ypos       =   0.0;
1283   zpos       =  -1.5;
1284   gMC->Gspos("USD5",1,"USDB", xpos, ypos, zpos,matrix[5],"ONLY");
1285   // Empty spaces (air)
1286   parTRP[ 0] =   1.20/2.0;
1287   parTRP[ 1] =   0.0;
1288   parTRP[ 2] =   0.0;
1289   parTRP[ 3] =  70.50/2.0;
1290   parTRP[ 4] =   4.50/2.0;
1291   parTRP[ 5] =  16.50/2.0;
1292   parTRP[ 6] =  -5.0;
1293   parTRP[ 7] =  70.50/2.0;
1294   parTRP[ 8] =   4.50/2.0;
1295   parTRP[ 9] =  16.50/2.0;
1296   parTRP[10] =  -5.0;
1297   gMC->Gsvolu("USD6","TRAP",idtmed[1302-1],parTRP,kNparTRP);
1298   xpos       = -43.7;
1299   ypos       =   0.0;
1300   zpos       =   0.4;
1301   gMC->Gspos("USD6",1,"USDB", xpos, ypos, zpos,matrix[2],"ONLY");
1302   xpos       =   0.0;
1303   ypos       =   fClength[5][2]/2.0;
1304   zpos       =   0.04;
1305   gMC->Gspos("USDB",1,"UTI1", xpos, ypos, zpos,        0,"ONLY");
1306   gMC->Gspos("USDB",2,"UTI1", xpos,-ypos, zpos,        0,"ONLY");
1307   gMC->Gspos("USDB",3,"UTI2", xpos, ypos, zpos,        0,"ONLY");
1308   gMC->Gspos("USDB",4,"UTI2", xpos,-ypos, zpos,        0,"ONLY");
1309   gMC->Gspos("USDB",5,"UTI3", xpos, ypos, zpos,        0,"ONLY");
1310   gMC->Gspos("USDB",6,"UTI3", xpos,-ypos, zpos,        0,"ONLY");
1311   // Upper bar (aluminum)
1312   parBOX[0] = 95.00/2.0;
1313   parBOX[1] =  1.20/2.0;
1314   parBOX[2] =  3.00/2.0;
1315   gMC->Gsvolu("USD7","BOX ",idtmed[1301-1],parBOX,kNparBOX);
1316   xpos       =   0.0;
1317   ypos       =   fClength[5][2]/2.0;
1318   zpos       =   fgkSheight/2.0 - fgkSMpltT  - 3.00/2.0;
1319   gMC->Gspos("USD7",1,"UTI1", xpos, ypos, zpos,        0,"ONLY");
1320   gMC->Gspos("USD7",2,"UTI1", xpos,-ypos, zpos,        0,"ONLY");
1321   gMC->Gspos("USD7",3,"UTI2", xpos, ypos, zpos,        0,"ONLY");
1322   gMC->Gspos("USD7",4,"UTI2", xpos,-ypos, zpos,        0,"ONLY");
1323   gMC->Gspos("USD7",5,"UTI3", xpos, ypos, zpos,        0,"ONLY");
1324   gMC->Gspos("USD7",6,"UTI3", xpos,-ypos, zpos,        0,"ONLY");
1325   // Lower bar (aluminum)
1326   parBOX[0] = 90.22/2.0;
1327   parBOX[1] =  1.20/2.0;
1328   parBOX[2] =  1.74/2.0;
1329   gMC->Gsvolu("USD8","BOX ",idtmed[1301-1],parBOX,kNparBOX);
1330   xpos       =   0.0;
1331   ypos       =   fClength[5][2]/2.0 - 0.1;
1332   zpos       =  -fgkSheight/2.0 + fgkSMpltT + 2.27;
1333   gMC->Gspos("USD8",1,"UTI1", xpos, ypos, zpos,        0,"ONLY");
1334   gMC->Gspos("USD8",2,"UTI1", xpos,-ypos, zpos,        0,"ONLY");
1335   gMC->Gspos("USD8",3,"UTI2", xpos, ypos, zpos,        0,"ONLY");
1336   gMC->Gspos("USD8",4,"UTI2", xpos,-ypos, zpos,        0,"ONLY");
1337   gMC->Gspos("USD8",5,"UTI3", xpos, ypos, zpos,        0,"ONLY");
1338   gMC->Gspos("USD8",6,"UTI3", xpos,-ypos, zpos,        0,"ONLY");
1339   // Lower bar (aluminum)
1340   parBOX[0] = 82.60/2.0;
1341   parBOX[1] =  1.20/2.0;
1342   parBOX[2] =  1.40/2.0;
1343   gMC->Gsvolu("USD9","BOX ",idtmed[1301-1],parBOX,kNparBOX);
1344   xpos       =   0.0;
1345   ypos       =   fClength[5][2]/2.0;
1346   zpos       =  -fgkSheight/2.0 + fgkSMpltT + 1.40/2.0;
1347   gMC->Gspos("USD9",1,"UTI1", xpos, ypos, zpos,        0,"ONLY");
1348   gMC->Gspos("USD9",2,"UTI1", xpos,-ypos, zpos,        0,"ONLY");
1349   gMC->Gspos("USD9",3,"UTI2", xpos, ypos, zpos,        0,"ONLY");
1350   gMC->Gspos("USD9",4,"UTI2", xpos,-ypos, zpos,        0,"ONLY");
1351   gMC->Gspos("USD9",5,"UTI3", xpos, ypos, zpos,        0,"ONLY");
1352   gMC->Gspos("USD9",6,"UTI3", xpos,-ypos, zpos,        0,"ONLY");
1353   // Front sheet (aluminum)
1354   parTRP[ 0] =   0.10/2.0;
1355   parTRP[ 1] =   0.0;
1356   parTRP[ 2] =   0.0;
1357   parTRP[ 3] =  74.50/2.0;
1358   parTRP[ 4] =  31.70/2.0;
1359   parTRP[ 5] =  44.00/2.0;
1360   parTRP[ 6] =  -5.0;
1361   parTRP[ 7] =  74.50/2.0;
1362   parTRP[ 8] =  31.70/2.0;
1363   parTRP[ 9] =  44.00/2.0;
1364   parTRP[10] =  -5.0;
1365   gMC->Gsvolu("USDF","TRAP",idtmed[1302-1],parTRP,kNparTRP);
1366   xpos       = -32.0;
1367   ypos       =   fClength[5][2]/2.0 + 1.20/2.0 + 0.10/2.0;
1368   zpos       =   0.0;
1369   gMC->Gspos("USDF",1,"UTI1", xpos, ypos, zpos,matrix[2],"ONLY");
1370   gMC->Gspos("USDF",2,"UTI1", xpos,-ypos, zpos,matrix[2],"ONLY");
1371   gMC->Gspos("USDF",3,"UTI2", xpos, ypos, zpos,matrix[2],"ONLY");
1372   gMC->Gspos("USDF",4,"UTI2", xpos,-ypos, zpos,matrix[2],"ONLY");
1373   gMC->Gspos("USDF",5,"UTI3", xpos, ypos, zpos,matrix[2],"ONLY");
1374   gMC->Gspos("USDF",6,"UTI3", xpos,-ypos, zpos,matrix[2],"ONLY");
1375
1376   //
1377   // The flat frame in front of the chambers
1378   //
1379
1380   // The envelope volume (aluminum)
1381   parTRD[0]  =  90.00/2.0;
1382   parTRD[1]  = 114.00/2.0;
1383   parTRD[2]  =   1.50/2.0;
1384   parTRD[3]  =  70.30/2.0;
1385   gMC->Gsvolu("USCB","TRD1",idtmed[1301-1],parTRD,kNparTRD);
1386   // Empty spaces (air)
1387   parTRD[0]  =  87.00/2.0;
1388   parTRD[1]  =  10.00/2.0;
1389   parTRD[2]  =   1.50/2.0;
1390   parTRD[3]  =  26.35/2.0;
1391   gMC->Gsvolu("USC1","TRD1",idtmed[1302-1],parTRD,kNparTRD);
1392   xpos       =  0.0;
1393   ypos       =  0.0;
1394   zpos       = 26.35/2.0 - 70.3/2.0;
1395   gMC->Gspos("USC1",1,"USCB",xpos,ypos,zpos,0,"ONLY");
1396   // Empty spaces (air)
1397   parTRD[0]  =  10.00/2.0;
1398   parTRD[1]  = 111.00/2.0;
1399   parTRD[2]  =   1.50/2.0;
1400   parTRD[3]  =  35.05/2.0;
1401   gMC->Gsvolu("USC2","TRD1",idtmed[1302-1],parTRD,kNparTRD);
1402   xpos       =  0.0;
1403   ypos       =  0.0;
1404   zpos       = 70.3/2.0 - 35.05/2.0;
1405   gMC->Gspos("USC2",1,"USCB",xpos,ypos,zpos,0,"ONLY");
1406   // Empty spaces (air)
1407   parTRP[ 0] =   1.50/2.0;
1408   parTRP[ 1] =   0.0;
1409   parTRP[ 2] =   0.0;
1410   parTRP[ 3] =  37.60/2.0;
1411   parTRP[ 4] =  63.90/2.0;
1412   parTRP[ 5] =   8.86/2.0;
1413   parTRP[ 6] =  16.0;
1414   parTRP[ 7] =  37.60/2.0;
1415   parTRP[ 8] =  63.90/2.0;
1416   parTRP[ 9] =   8.86/2.0;
1417   parTRP[10] =  16.0;
1418   gMC->Gsvolu("USC3","TRAP",idtmed[1302-1],parTRP,kNparTRP);
1419   xpos       = -30.5;
1420   ypos       =   0.0;
1421   zpos       =  -2.0;
1422   gMC->Gspos("USC3",1,"USCB", xpos, ypos, zpos,matrix[4],"ONLY");
1423   gMC->Gspos("USC3",2,"USCB",-xpos, ypos, zpos,matrix[5],"ONLY");
1424   xpos       =   0.0;
1425   ypos       =   fClength[5][2]/2.0 + fClength[5][1] + fClength[5][0];
1426   zpos       =   0.0;
1427   gMC->Gspos("USCB",1,"UTI1", xpos, ypos, zpos,        0,"ONLY");
1428   gMC->Gspos("USCB",2,"UTI1", xpos,-ypos, zpos,        0,"ONLY");
1429   gMC->Gspos("USCB",3,"UTI2", xpos, ypos, zpos,        0,"ONLY");
1430   gMC->Gspos("USCB",4,"UTI2", xpos,-ypos, zpos,        0,"ONLY");
1431   gMC->Gspos("USCB",5,"UTI3", xpos, ypos, zpos,        0,"ONLY");
1432   gMC->Gspos("USCB",6,"UTI3", xpos,-ypos, zpos,        0,"ONLY");
1433   // Upper bar (aluminum)
1434   parBOX[0] = 95.00/2.0;
1435   parBOX[1] =  1.50/2.0;
1436   parBOX[2] =  3.00/2.0;
1437   gMC->Gsvolu("USC4","BOX ",idtmed[1301-1],parBOX,kNparBOX);
1438   xpos       =   0.0;
1439   ypos       =   fClength[5][2]/2.0 + fClength[5][1] + fClength[5][0];
1440   zpos       =   fgkSheight/2.0 - fgkSMpltT - 3.00/2.0;
1441   gMC->Gspos("USC4",1,"UTI1", xpos, ypos, zpos,        0,"ONLY");
1442   gMC->Gspos("USC4",2,"UTI1", xpos,-ypos, zpos,        0,"ONLY");
1443   gMC->Gspos("USC4",3,"UTI2", xpos, ypos, zpos,        0,"ONLY");
1444   gMC->Gspos("USC4",4,"UTI2", xpos,-ypos, zpos,        0,"ONLY");
1445   gMC->Gspos("USC4",5,"UTI3", xpos, ypos, zpos,        0,"ONLY");
1446   gMC->Gspos("USC4",6,"UTI3", xpos,-ypos, zpos,        0,"ONLY");
1447   // Lower bar (aluminum)
1448   parBOX[0] = 90.22/2.0;
1449   parBOX[1] =  1.50/2.0;
1450   parBOX[2] =  2.00/2.0;
1451   gMC->Gsvolu("USC5","BOX ",idtmed[1301-1],parBOX,kNparBOX);
1452   xpos       =   0.0;
1453   ypos       =   fClength[5][2]/2.0 + fClength[5][1] + fClength[5][0];
1454   zpos       =  -fgkSheight/2.0 + fgkSMpltT + 2.60;
1455   gMC->Gspos("USC5",1,"UTI1", xpos, ypos, zpos,        0,"ONLY");
1456   gMC->Gspos("USC5",2,"UTI1", xpos,-ypos, zpos,        0,"ONLY");
1457   gMC->Gspos("USC5",3,"UTI2", xpos, ypos, zpos,        0,"ONLY");
1458   gMC->Gspos("USC5",4,"UTI2", xpos,-ypos, zpos,        0,"ONLY");
1459   gMC->Gspos("USC5",5,"UTI3", xpos, ypos, zpos,        0,"ONLY");
1460   gMC->Gspos("USC5",6,"UTI3", xpos,-ypos, zpos,        0,"ONLY");
1461   // Lower bar (aluminum)
1462   parBOX[0] = 82.60/2.0;
1463   parBOX[1] =  1.50/2.0;
1464   parBOX[2] =  1.60/2.0;
1465   gMC->Gsvolu("USC6","BOX ",idtmed[1301-1],parBOX,kNparBOX);
1466   xpos       =   0.0;
1467   ypos       =   fClength[5][2]/2.0 + fClength[5][1] + fClength[5][0];
1468   zpos       =  -fgkSheight/2.0 + fgkSMpltT + 1.60/2.0;
1469   gMC->Gspos("USC6",1,"UTI1", xpos, ypos, zpos,        0,"ONLY");
1470   gMC->Gspos("USC6",2,"UTI1", xpos,-ypos, zpos,        0,"ONLY");
1471   gMC->Gspos("USC6",3,"UTI2", xpos, ypos, zpos,        0,"ONLY");
1472   gMC->Gspos("USC6",4,"UTI2", xpos,-ypos, zpos,        0,"ONLY");
1473   gMC->Gspos("USC6",5,"UTI3", xpos, ypos, zpos,        0,"ONLY");
1474   gMC->Gspos("USC6",6,"UTI3", xpos,-ypos, zpos,        0,"ONLY");
1475
1476   //
1477   // The long corner ledges
1478   //
1479
1480   const Int_t   kNparSCL  =  3;
1481   Float_t parSCL[kNparSCL];
1482   const Int_t   kNparSCLb = 11;
1483   Float_t parSCLb[kNparSCLb];
1484
1485   // Upper ledges
1486   // Thickness of the corner ledges
1487   const Float_t kSCLthkUa  =  0.6;
1488   const Float_t kSCLthkUb  =  0.6;
1489   // Width of the corner ledges
1490   const Float_t kSCLwidUa  =  3.2;
1491   const Float_t kSCLwidUb  =  4.8;
1492   // Position of the corner ledges
1493   const Float_t kSCLposxUa = 0.7;
1494   const Float_t kSCLposxUb = 3.3;
1495   const Float_t kSCLposzUa = 1.65;
1496   const Float_t kSCLposzUb = 0.3;
1497   // Vertical
1498   parSCL[0]  = kSCLthkUa /2.0;
1499   parSCL[1]  = fgkSlength/2.0;
1500   parSCL[2]  = kSCLwidUa /2.0;
1501   gMC->Gsvolu("USL1","BOX ",idtmed[1301-1],parSCL,kNparSCL);
1502   xpos  =   fgkSwidth2/2.0 - fgkSMpltT - kSCLposxUa;
1503   ypos  =   0.0;
1504   zpos  =   fgkSheight/2.0 - fgkSMpltT - kSCLposzUa;
1505   gMC->Gspos("USL1",1,"UTI1", xpos,ypos,zpos,matrix[0],"ONLY");
1506   xpos  = -xpos;
1507   gMC->Gspos("USL1",2,"UTI1", xpos,ypos,zpos,matrix[1],"ONLY");
1508   // Horizontal
1509   parSCL[0]  = kSCLwidUb /2.0;
1510   parSCL[1]  = fgkSlength/2.0;
1511   parSCL[2]  = kSCLthkUb /2.0;
1512   gMC->Gsvolu("USL2","BOX ",idtmed[1301-1],parSCL,kNparSCL);
1513   xpos  =   fgkSwidth2/2.0 - fgkSMpltT - kSCLposxUb;
1514   ypos  =   0.0;
1515   zpos  =   fgkSheight/2.0 - fgkSMpltT - kSCLposzUb;
1516   gMC->Gspos("USL2",1,"UTI1", xpos,ypos,zpos,        0,"ONLY");
1517   gMC->Gspos("USL2",3,"UTI2", xpos,ypos,zpos,        0,"ONLY");
1518   gMC->Gspos("USL2",5,"UTI3", xpos,ypos,zpos,        0,"ONLY");
1519   xpos  = -xpos;
1520   gMC->Gspos("USL2",2,"UTI1", xpos,ypos,zpos,        0,"ONLY");
1521   gMC->Gspos("USL2",4,"UTI2", xpos,ypos,zpos,        0,"ONLY");
1522   gMC->Gspos("USL2",6,"UTI3", xpos,ypos,zpos,        0,"ONLY");
1523
1524   // Lower ledges
1525   // Thickness of the corner ledges
1526   const Float_t kSCLthkLa  =  2.464;
1527   const Float_t kSCLthkLb  =  1.0;
1528   // Width of the corner ledges
1529   const Float_t kSCLwidLa  =  8.5;
1530   const Float_t kSCLwidLb  =  3.3;
1531   // Position of the corner ledges
1532   const Float_t kSCLposxLa =  0.15;
1533   const Float_t kSCLposxLb =  2.7;
1534   const Float_t kSCLposzLa = -4.25;
1535   const Float_t kSCLposzLb = -0.5;
1536   // Vertical
1537   // Trapezoidal shape
1538   parSCLb[ 0] = fgkSlength/2.0;
1539   parSCLb[ 1] = 0.0;
1540   parSCLb[ 2] = 0.0;
1541   parSCLb[ 3] = kSCLwidLa /2.0;
1542   parSCLb[ 4] = kSCLthkLb /2.0;
1543   parSCLb[ 5] = kSCLthkLa /2.0;
1544   parSCLb[ 6] = 5.0;
1545   parSCLb[ 7] = kSCLwidLa /2.0;
1546   parSCLb[ 8] = kSCLthkLb /2.0;
1547   parSCLb[ 9] = kSCLthkLa /2.0;
1548   parSCLb[10] = 5.0;
1549   gMC->Gsvolu("USL3","TRAP",idtmed[1301-1],parSCLb,kNparSCLb);
1550   xpos  =   fgkSwidth1/2.0 - fgkSMpltT - kSCLposxLa;
1551   ypos  =   0.0;
1552   zpos  = - fgkSheight/2.0 + fgkSMpltT - kSCLposzLa;
1553   gMC->Gspos("USL3",1,"UTI1", xpos,ypos,zpos,matrix[2],"ONLY");
1554   gMC->Gspos("USL3",3,"UTI2", xpos,ypos,zpos,matrix[2],"ONLY");
1555   gMC->Gspos("USL3",5,"UTI3", xpos,ypos,zpos,matrix[2],"ONLY");
1556   xpos  = -xpos;
1557   gMC->Gspos("USL3",2,"UTI1", xpos,ypos,zpos,matrix[3],"ONLY");
1558   gMC->Gspos("USL3",4,"UTI2", xpos,ypos,zpos,matrix[3],"ONLY");
1559   gMC->Gspos("USL3",6,"UTI3", xpos,ypos,zpos,matrix[3],"ONLY");
1560   // Horizontal
1561   parSCL[0]  = kSCLwidLb /2.0;
1562   parSCL[1]  = fgkSlength/2.0;
1563   parSCL[2]  = kSCLthkLb /2.0;
1564   gMC->Gsvolu("USL4","BOX ",idtmed[1301-1],parSCL,kNparSCL);
1565   xpos  =   fgkSwidth1/2.0 - fgkSMpltT - kSCLposxLb;
1566   ypos  =   0.0;
1567   zpos  = - fgkSheight/2.0 + fgkSMpltT - kSCLposzLb;
1568   gMC->Gspos("USL4",1,"UTI1", xpos,ypos,zpos,        0,"ONLY");
1569   gMC->Gspos("USL4",3,"UTI2", xpos,ypos,zpos,        0,"ONLY");
1570   gMC->Gspos("USL4",5,"UTI3", xpos,ypos,zpos,        0,"ONLY");
1571   xpos  = -xpos;
1572   gMC->Gspos("USL4",2,"UTI1", xpos,ypos,zpos,        0,"ONLY");
1573   gMC->Gspos("USL4",4,"UTI2", xpos,ypos,zpos,        0,"ONLY");
1574   gMC->Gspos("USL4",6,"UTI3", xpos,ypos,zpos,        0,"ONLY");
1575
1576   //
1577   // Aluminum plates in the front part of the super modules
1578   //
1579
1580   const Int_t kNparTrd = 4;
1581   Float_t parTrd[kNparTrd];
1582   parTrd[0] = fgkSwidth1/2.0 - 2.5;
1583   parTrd[1] = fgkSwidth2/2.0 - 2.5;
1584   parTrd[2] = fgkSMpltT /2.0;
1585   parTrd[3] = fgkSheight/2.0 - 1.0;
1586   gMC->Gsvolu("UTA1","TRD1",idtmed[1301-1],parTrd,kNparTrd);
1587   xpos      =  0.0;
1588   ypos      =  fgkSMpltT/2.0 - fgkFlength/2.0;
1589   zpos      = -0.5;
1590   gMC->Gspos("UTA1",1,"UTF1",xpos, ypos,zpos,        0,"ONLY");
1591   gMC->Gspos("UTA1",2,"UTF2",xpos,-ypos,zpos,        0,"ONLY");
1592
1593   const Int_t kNparPlt = 3;
1594   Float_t parPlt[kNparPlt];
1595   parPlt[0] =  0.0;
1596   parPlt[1] =  0.0;
1597   parPlt[2] =  0.0;
1598   gMC->Gsvolu("UTA2","BOX ",idtmed[1301-1],parPlt,0);
1599   xpos      =  0.0;
1600   ypos      =  0.0;
1601   zpos      =  fgkSheight/2.0 - fgkSMpltT/2.0;
1602   parPlt[0] = fgkSwidth2/2.0 - 0.2;
1603   parPlt[1] = fgkFlength/2.0;
1604   parPlt[2] = fgkSMpltT /2.0;
1605   gMC->Gsposp("UTA2",1,"UTF2",xpos,ypos,zpos
1606                     ,        0,"ONLY",parPlt,kNparPlt);
1607   xpos      = (fgkSwidth1 + fgkSwidth2)/4.0 - fgkSMpltT/2.0 - 0.0016;
1608   ypos      =  0.0;
1609   zpos      =  0.0;
1610   parPlt[0] = fgkSMpltT /2.0;
1611   parPlt[1] = fgkFlength/2.0;
1612   parPlt[2] = fgkSheight/2.0;
1613   gMC->Gsposp("UTA2",2,"UTF2", xpos,ypos,zpos
1614                     ,matrix[0],"ONLY",parPlt,kNparPlt);
1615   gMC->Gsposp("UTA2",3,"UTF2",-xpos,ypos,zpos
1616                     ,matrix[1],"ONLY",parPlt,kNparPlt);
1617
1618   // Additional aluminum bar
1619   parBOX[0] = 80.0/2.0;
1620   parBOX[1] =  1.0/2.0;
1621   parBOX[2] = 10.0/2.0;
1622   gMC->Gsvolu("UTA3","BOX ",idtmed[1301-1],parBOX,kNparBOX);
1623   xpos      =  0.0;
1624   ypos      =  1.0/2.0 + fgkSMpltT - fgkFlength/2.0;
1625   zpos      =  fgkSheight/2.0 - 1.5 - 10.0/2.0;
1626   gMC->Gspos("UTA3",1,"UTF1", xpos, ypos, zpos,        0,"ONLY");
1627   gMC->Gspos("UTA3",2,"UTF2", xpos,-ypos, zpos,        0,"ONLY");
1628
1629 }
1630
1631 //_____________________________________________________________________________
1632 void AliTRDgeometry::CreateServices(Int_t *idtmed)
1633 {
1634   //
1635   // Create the geometry of the services
1636   //
1637   // Names of the TRD services volumina
1638   //
1639   //        UTC1    Cooling arterias (Al)
1640   //        UTC2    Cooling arterias (Water)
1641   //        UUxx    Volumes for the services at the chambers (Air)
1642   //        UTP1    Power bars       (Cu)
1643   //        UTCP    Cooling pipes    (Fe)
1644   //        UTCH    Cooling pipes    (Water)
1645   //        UTPL    Power lines      (Cu)
1646   //        UMCM    Readout MCMs     (G10/Cu/Si)
1647   //        UTGD    Gas distribution box (V2A)
1648   //
1649
1650   Int_t   ilayer = 0;
1651   Int_t   istack = 0;
1652
1653   Float_t xpos  = 0.0;
1654   Float_t ypos  = 0.0;
1655   Float_t zpos  = 0.0;
1656
1657   Char_t  cTagV[5];
1658
1659   const Int_t kNparBox  = 3;
1660   Float_t parBox[kNparBox];
1661
1662   const Int_t kNparTube = 3;
1663   Float_t parTube[kNparTube];
1664
1665   // Services inside the baby frame
1666   const Float_t kBBMdz = 223.0;
1667   const Float_t kBBSdz =   8.5;
1668
1669   // Services inside the back frame
1670   const Float_t kBFMdz = 118.0;
1671   const Float_t kBFSdz =   8.5;
1672
1673   // The rotation matrices
1674   const Int_t kNmatrix = 10;
1675   Int_t   matrix[kNmatrix];
1676   gMC->Matrix(matrix[0], 100.0,   0.0,  90.0,  90.0,  10.0,   0.0); // rotation around y-axis
1677   gMC->Matrix(matrix[1],  80.0,   0.0,  90.0,  90.0,  10.0, 180.0); // rotation around y-axis
1678   gMC->Matrix(matrix[2],   0.0,   0.0,  90.0,  90.0,  90.0,   0.0);
1679   gMC->Matrix(matrix[3], 180.0,   0.0,  90.0,  90.0,  90.0, 180.0);
1680   gMC->Matrix(matrix[4],  90.0,   0.0,   0.0,   0.0,  90.0,  90.0);
1681   gMC->Matrix(matrix[5], 100.0,   0.0,  90.0, 270.0,  10.0,   0.0);
1682   gMC->Matrix(matrix[6],  80.0,   0.0,  90.0, 270.0,  10.0, 180.0);
1683   gMC->Matrix(matrix[7],  90.0,  10.0,  90.0, 100.0,   0.0,   0.0); // rotation around z-axis
1684   gMC->Matrix(matrix[8],  90.0, 350.0,  90.0,  80.0,   0.0,   0.0); // rotation around z-axis
1685   gMC->Matrix(matrix[9],  90.0,  90.0,  90.0, 180.0,   0.0,   0.0); // rotation around z-axis
1686
1687   //
1688   // The cooling arterias
1689   //
1690
1691   // Width of the cooling arterias
1692   const Float_t kCOLwid  =  0.8;
1693   // Height of the cooling arterias
1694   const Float_t kCOLhgt  =  6.5;
1695   // Positioning of the cooling
1696   const Float_t kCOLposx =  1.8;
1697   const Float_t kCOLposz = -0.1;
1698   // Thickness of the walls of the cooling arterias
1699   const Float_t kCOLthk  =  0.1;
1700   const Int_t   kNparCOL =  3;
1701   Float_t parCOL[kNparCOL];
1702   parCOL[0] = 0.0;
1703   parCOL[1] = 0.0;
1704   parCOL[2] = 0.0;
1705   gMC->Gsvolu("UTC1","BOX ",idtmed[1308-1],parCOL,0);
1706   gMC->Gsvolu("UTC3","BOX ",idtmed[1308-1],parCOL,0);
1707   parCOL[0] =  kCOLwid/2.0 - kCOLthk;
1708   parCOL[1] = -1.0;
1709   parCOL[2] =  kCOLhgt/2.0 - kCOLthk;
1710   gMC->Gsvolu("UTC2","BOX ",idtmed[1314-1],parCOL,kNparCOL);
1711   gMC->Gsvolu("UTC4","BOX ",idtmed[1314-1],parCOL,kNparCOL);
1712
1713   xpos  = 0.0;
1714   ypos  = 0.0;
1715   zpos  = 0.0;
1716   gMC->Gspos("UTC2",1,"UTC1", xpos,ypos,zpos,0,"ONLY");
1717   gMC->Gspos("UTC4",1,"UTC3", xpos,ypos,zpos,0,"ONLY");
1718
1719   for (ilayer = 1; ilayer < kNlayer; ilayer++) {
1720
1721     // Along the chambers
1722     xpos      = fCwidth[ilayer]/2.0 + kCOLwid/2.0 + kCOLposx;
1723     ypos      = 0.0;
1724     zpos      = fgkVrocsm + fgkSMpltT + kCOLhgt/2.0 - fgkSheight/2.0 + kCOLposz
1725               + ilayer * (fgkCH + fgkVspace);
1726     parCOL[0] = kCOLwid   /2.0;
1727     parCOL[1] = fgkSlength/2.0;
1728     parCOL[2] = kCOLhgt   /2.0;
1729     gMC->Gsposp("UTC1",ilayer          ,"UTI1", xpos,ypos,zpos
1730                       ,matrix[0],"ONLY",parCOL,kNparCOL);
1731     gMC->Gsposp("UTC1",ilayer+  kNlayer,"UTI1",-xpos,ypos,zpos
1732                       ,matrix[1],"ONLY",parCOL,kNparCOL);
1733     gMC->Gsposp("UTC1",ilayer+6*kNlayer,"UTI2", xpos,ypos,zpos
1734                       ,matrix[0],"ONLY",parCOL,kNparCOL);
1735     gMC->Gsposp("UTC1",ilayer+7*kNlayer,"UTI2",-xpos,ypos,zpos
1736                       ,matrix[1],"ONLY",parCOL,kNparCOL);
1737     gMC->Gsposp("UTC1",ilayer+8*kNlayer ,"UTI3", xpos,ypos,zpos
1738                       ,matrix[0],"ONLY",parCOL,kNparCOL);
1739     gMC->Gsposp("UTC1",ilayer+9*kNlayer,"UTI3",-xpos,ypos,zpos
1740                       ,matrix[1],"ONLY",parCOL,kNparCOL);
1741
1742     // Front of supermodules
1743     xpos      = fCwidth[ilayer]/2.0 + kCOLwid/2.0 + kCOLposx;
1744     ypos      = 0.0;
1745     zpos      = fgkVrocsm + fgkSMpltT + kCOLhgt/2.0 - fgkSheight/2.0 + kCOLposz
1746               + ilayer * (fgkCH + fgkVspace);
1747     parCOL[0] = kCOLwid   /2.0;
1748     parCOL[1] = fgkFlength/2.0;
1749     parCOL[2] = kCOLhgt   /2.0;
1750     gMC->Gsposp("UTC3",ilayer+2*kNlayer,"UTF1", xpos,ypos,zpos
1751                       ,matrix[0],"ONLY",parCOL,kNparCOL);
1752     gMC->Gsposp("UTC3",ilayer+3*kNlayer,"UTF1",-xpos,ypos,zpos
1753                       ,matrix[1],"ONLY",parCOL,kNparCOL);
1754     gMC->Gsposp("UTC3",ilayer+4*kNlayer,"UTF2", xpos,ypos,zpos
1755                       ,matrix[0],"ONLY",parCOL,kNparCOL);
1756     gMC->Gsposp("UTC3",ilayer+5*kNlayer,"UTF2",-xpos,ypos,zpos
1757                       ,matrix[1],"ONLY",parCOL,kNparCOL);
1758
1759   }
1760
1761   for (ilayer = 1; ilayer < kNlayer; ilayer++) {
1762
1763     // In baby frame
1764     xpos      = fCwidth[ilayer]/2.0 + kCOLwid/2.0 - 1.04;
1765     ypos      = kBBSdz/2.0 - kBBMdz/2.0;
1766     zpos      = fgkVrocsm + fgkSMpltT + kCOLhgt/2.0 - fgkSheight/2.0 + kCOLposz
1767               + ilayer * (fgkCH + fgkVspace);
1768     parCOL[0] = kCOLwid/2.0;
1769     parCOL[1] = kBBSdz /2.0;
1770     parCOL[2] = kCOLhgt/2.0;
1771     gMC->Gsposp("UTC3",ilayer+6*kNlayer,"BBTRD", xpos, ypos, zpos
1772                       ,matrix[0],"ONLY",parCOL,kNparCOL);
1773     gMC->Gsposp("UTC3",ilayer+7*kNlayer,"BBTRD",-xpos, ypos, zpos
1774                       ,matrix[1],"ONLY",parCOL,kNparCOL);
1775
1776   }
1777
1778   for (ilayer = 1; ilayer < kNlayer; ilayer++) {
1779
1780     // In back frame
1781     xpos      = fCwidth[ilayer]/2.0 + kCOLwid/2.0 + kCOLposx;
1782     ypos      = -kBFSdz/2.0 + kBFMdz/2.0;
1783     zpos      = fgkVrocsm + fgkSMpltT + kCOLhgt/2.0 - fgkSheight/2.0 + kCOLposz
1784               + ilayer * (fgkCH + fgkVspace);
1785     parCOL[0] = kCOLwid/2.0;
1786     parCOL[1] = kBFSdz /2.0;
1787     parCOL[2] = kCOLhgt/2.0;
1788     gMC->Gsposp("UTC3",ilayer+6*kNlayer,"BFTRD", xpos,ypos,zpos
1789                       ,matrix[0],"ONLY",parCOL,kNparCOL);
1790     gMC->Gsposp("UTC3",ilayer+7*kNlayer,"BFTRD",-xpos,ypos,zpos
1791                       ,matrix[1],"ONLY",parCOL,kNparCOL);
1792
1793   }
1794
1795   // The upper most layer (reaching into TOF acceptance)
1796   // Along the chambers
1797   xpos      = fCwidth[5]/2.0 - kCOLhgt/2.0 - 1.3;
1798   ypos      = 0.0;
1799   zpos      = fgkSheight/2.0 - fgkSMpltT - 0.4 - kCOLwid/2.0;
1800   parCOL[0] = kCOLwid   /2.0;
1801   parCOL[1] = fgkSlength/2.0;
1802   parCOL[2] = kCOLhgt   /2.0;
1803   gMC->Gsposp("UTC1",6          ,"UTI1", xpos,ypos,zpos
1804                     ,matrix[3],"ONLY",parCOL,kNparCOL);
1805   gMC->Gsposp("UTC1",6+  kNlayer,"UTI1",-xpos,ypos,zpos
1806                     ,matrix[3],"ONLY",parCOL,kNparCOL);
1807   gMC->Gsposp("UTC1",6+6*kNlayer,"UTI2", xpos,ypos,zpos
1808                     ,matrix[3],"ONLY",parCOL,kNparCOL);
1809   gMC->Gsposp("UTC1",6+7*kNlayer,"UTI2",-xpos,ypos,zpos
1810                     ,matrix[3],"ONLY",parCOL,kNparCOL);
1811   gMC->Gsposp("UTC1",6+8*kNlayer,"UTI3", xpos,ypos,zpos
1812                     ,matrix[3],"ONLY",parCOL,kNparCOL);
1813   gMC->Gsposp("UTC1",6+9*kNlayer,"UTI3",-xpos,ypos,zpos
1814                     ,matrix[3],"ONLY",parCOL,kNparCOL);
1815   // Front of supermodules
1816   xpos      = fCwidth[5]/2.0 - kCOLhgt/2.0 - 1.3;
1817   ypos      = 0.0;
1818   zpos      = fgkSheight/2.0 - fgkSMpltT - 0.4 - kCOLwid/2.0;
1819   parCOL[0] = kCOLwid   /2.0;
1820   parCOL[1] = fgkFlength/2.0;
1821   parCOL[2] = kCOLhgt   /2.0;
1822   gMC->Gsposp("UTC3",6+2*kNlayer,"UTF1", xpos,ypos,zpos
1823                     ,matrix[3],"ONLY",parCOL,kNparCOL);
1824   gMC->Gsposp("UTC3",6+3*kNlayer,"UTF1",-xpos,ypos,zpos
1825                     ,matrix[3],"ONLY",parCOL,kNparCOL);
1826   gMC->Gsposp("UTC3",6+4*kNlayer,"UTF2", xpos,ypos,zpos
1827                     ,matrix[3],"ONLY",parCOL,kNparCOL);
1828   gMC->Gsposp("UTC3",6+5*kNlayer,"UTF2",-xpos,ypos,zpos
1829                     ,matrix[3],"ONLY",parCOL,kNparCOL);
1830   // In baby frame
1831   xpos      = fCwidth[5]/2.0 - kCOLhgt/2.0 - 3.1;
1832   ypos      = kBBSdz/2.0 - kBBMdz/2.0;
1833   zpos      = fgkSheight/2.0 - fgkSMpltT - 0.4 - kCOLwid/2.0;
1834   parCOL[0] = kCOLwid/2.0;
1835   parCOL[1] = kBBSdz /2.0;
1836   parCOL[2] = kCOLhgt/2.0;
1837   gMC->Gsposp("UTC3",6+6*kNlayer,"BBTRD", xpos, ypos, zpos
1838                     ,matrix[3],"ONLY",parCOL,kNparCOL);
1839   gMC->Gsposp("UTC3",6+7*kNlayer,"BBTRD",-xpos, ypos, zpos
1840                     ,matrix[3],"ONLY",parCOL,kNparCOL);
1841   // In back frame
1842   xpos      = fCwidth[5]/2.0 - kCOLhgt/2.0 - 1.3;
1843   ypos      = -kBFSdz/2.0 + kBFMdz/2.0;
1844   zpos      = fgkSheight/2.0 - fgkSMpltT - 0.4 - kCOLwid/2.0;
1845   parCOL[0] = kCOLwid/2.0;
1846   parCOL[1] = kBFSdz /2.0;
1847   parCOL[2] = kCOLhgt/2.0;
1848   gMC->Gsposp("UTC3",6+6*kNlayer,"BFTRD", xpos,ypos,zpos
1849                     ,matrix[3],"ONLY",parCOL,kNparCOL);
1850   gMC->Gsposp("UTC3",6+7*kNlayer,"BFTRD",-xpos,ypos,zpos
1851                     ,matrix[3],"ONLY",parCOL,kNparCOL);
1852
1853   //
1854   // The power bars
1855   //
1856
1857   const Float_t kPWRwid  =  0.6;
1858   const Float_t kPWRhgt  =  5.0;
1859   const Float_t kPWRposx =  1.4;
1860   const Float_t kPWRposz =  1.9;
1861   const Int_t   kNparPWR =  3;
1862   Float_t parPWR[kNparPWR];
1863   parPWR[0] = 0.0;
1864   parPWR[1] = 0.0;
1865   parPWR[2] = 0.0;
1866   gMC->Gsvolu("UTP1","BOX ",idtmed[1325-1],parPWR,0);
1867   gMC->Gsvolu("UTP3","BOX ",idtmed[1325-1],parPWR,0);
1868
1869   for (ilayer = 1; ilayer < kNlayer; ilayer++) {
1870
1871     // Along the chambers
1872     xpos      = fCwidth[ilayer]/2.0 + kPWRwid/2.0 + kPWRposx;
1873     ypos      = 0.0;
1874     zpos      = fgkVrocsm + fgkSMpltT + kPWRhgt/2.0 - fgkSheight/2.0 + kPWRposz
1875               + ilayer * (fgkCH + fgkVspace);
1876     parPWR[0] = kPWRwid   /2.0;
1877     parPWR[1] = fgkSlength/2.0;
1878     parPWR[2] = kPWRhgt   /2.0;
1879     gMC->Gsposp("UTP1",ilayer          ,"UTI1", xpos,ypos,zpos
1880                       ,matrix[0],"ONLY",parPWR,kNparPWR);
1881     gMC->Gsposp("UTP1",ilayer+  kNlayer,"UTI1",-xpos,ypos,zpos
1882                       ,matrix[1],"ONLY",parPWR,kNparPWR);
1883     gMC->Gsposp("UTP1",ilayer+6*kNlayer,"UTI2", xpos,ypos,zpos
1884                       ,matrix[0],"ONLY",parPWR,kNparPWR);
1885     gMC->Gsposp("UTP1",ilayer+7*kNlayer,"UTI2",-xpos,ypos,zpos
1886                       ,matrix[1],"ONLY",parPWR,kNparPWR);
1887     gMC->Gsposp("UTP1",ilayer+8*kNlayer,"UTI3", xpos,ypos,zpos
1888                       ,matrix[0],"ONLY",parPWR,kNparPWR);
1889     gMC->Gsposp("UTP1",ilayer+9*kNlayer,"UTI3",-xpos,ypos,zpos
1890                       ,matrix[1],"ONLY",parPWR,kNparPWR);
1891
1892     // Front of supermodule
1893     xpos      = fCwidth[ilayer]/2.0 + kPWRwid/2.0 + kPWRposx;
1894     ypos      = 0.0;
1895     zpos      = fgkVrocsm + fgkSMpltT + kPWRhgt/2.0 - fgkSheight/2.0 + kPWRposz
1896               + ilayer * (fgkCH + fgkVspace);
1897     parPWR[0] = kPWRwid   /2.0;
1898     parPWR[1] = fgkFlength/2.0;
1899     parPWR[2] = kPWRhgt   /2.0;
1900     gMC->Gsposp("UTP3",ilayer+2*kNlayer,"UTF1", xpos,ypos,zpos
1901                       ,matrix[0],"ONLY",parPWR,kNparPWR);
1902     gMC->Gsposp("UTP3",ilayer+3*kNlayer,"UTF1",-xpos,ypos,zpos
1903                       ,matrix[1],"ONLY",parPWR,kNparPWR);
1904     gMC->Gsposp("UTP3",ilayer+4*kNlayer,"UTF2", xpos,ypos,zpos
1905                       ,matrix[0],"ONLY",parPWR,kNparPWR);
1906     gMC->Gsposp("UTP3",ilayer+5*kNlayer,"UTF2",-xpos,ypos,zpos
1907                       ,matrix[1],"ONLY",parPWR,kNparPWR);
1908
1909   }
1910
1911   for (ilayer = 1; ilayer < kNlayer; ilayer++) {
1912
1913     // In baby frame
1914     xpos      = fCwidth[ilayer]/2.0 + kPWRwid/2.0;
1915     ypos      = kBBSdz/2.0 - kBBMdz/2.0;
1916     zpos      = fgkVrocsm + fgkSMpltT + kPWRhgt/2.0 - fgkSheight/2.0 + kPWRposz
1917               + ilayer * (fgkCH + fgkVspace);
1918     parPWR[0] = kPWRwid/2.0;
1919     parPWR[1] = kBBSdz /2.0;
1920     parPWR[2] = kPWRhgt/2.0;
1921     gMC->Gsposp("UTP3",ilayer+6*kNlayer,"BBTRD", xpos, ypos, zpos
1922                       ,matrix[0],"ONLY",parPWR,kNparPWR);
1923     gMC->Gsposp("UTP3",ilayer+7*kNlayer,"BBTRD",-xpos, ypos, zpos
1924                       ,matrix[1],"ONLY",parPWR,kNparPWR);
1925
1926   }
1927
1928   for (ilayer = 1; ilayer < kNlayer; ilayer++) {
1929
1930     // In back frame
1931     xpos      = fCwidth[ilayer]/2.0 + kPWRwid/2.0 + kPWRposx;
1932     ypos      = -kBFSdz/2.0 + kBFMdz/2.0;
1933     zpos      = fgkVrocsm + fgkSMpltT + kPWRhgt/2.0 - fgkSheight/2.0 + kPWRposz
1934               + ilayer * (fgkCH + fgkVspace);
1935     parPWR[0] = kPWRwid/2.0;
1936     parPWR[1] = kBFSdz /2.0;
1937     parPWR[2] = kPWRhgt/2.0;
1938     gMC->Gsposp("UTP3",ilayer+8*kNlayer,"BFTRD", xpos,ypos,zpos
1939                       ,matrix[0],"ONLY",parPWR,kNparPWR);
1940     gMC->Gsposp("UTP3",ilayer+9*kNlayer,"BFTRD",-xpos,ypos,zpos
1941                       ,matrix[1],"ONLY",parPWR,kNparPWR);
1942
1943   }
1944
1945   // The upper most layer
1946   // Along the chambers
1947   xpos      = fCwidth[5]/2.0 + kPWRhgt/2.0 - 1.3;
1948   ypos      = 0.0;
1949   zpos      = fgkSheight/2.0 - fgkSMpltT - 0.6 - kPWRwid/2.0;
1950   parPWR[0] = kPWRwid   /2.0;
1951   parPWR[1] = fgkSlength/2.0;
1952   parPWR[2] = kPWRhgt   /2.0;
1953   gMC->Gsposp("UTP1",6          ,"UTI1", xpos,ypos,zpos
1954                     ,matrix[3],"ONLY",parPWR,kNparPWR);
1955   gMC->Gsposp("UTP1",6+  kNlayer,"UTI1",-xpos,ypos,zpos
1956                     ,matrix[3],"ONLY",parPWR,kNparPWR);
1957   gMC->Gsposp("UTP1",6+6*kNlayer,"UTI2", xpos,ypos,zpos
1958                     ,matrix[3],"ONLY",parPWR,kNparPWR);
1959   gMC->Gsposp("UTP1",6+7*kNlayer,"UTI2",-xpos,ypos,zpos
1960                     ,matrix[3],"ONLY",parPWR,kNparPWR);
1961   gMC->Gsposp("UTP1",6+8*kNlayer,"UTI3", xpos,ypos,zpos
1962                     ,matrix[3],"ONLY",parPWR,kNparPWR);
1963   gMC->Gsposp("UTP1",6+9*kNlayer,"UTI3",-xpos,ypos,zpos
1964                     ,matrix[3],"ONLY",parPWR,kNparPWR);
1965   // Front of supermodules
1966   xpos      = fCwidth[5]/2.0 + kPWRhgt/2.0 - 1.3;
1967   ypos      = 0.0;
1968   zpos      = fgkSheight/2.0 - fgkSMpltT - 0.6 - kPWRwid/2.0;
1969   parPWR[0] = kPWRwid   /2.0;
1970   parPWR[1] = fgkFlength/2.0;
1971   parPWR[2] = kPWRhgt   /2.0;
1972   gMC->Gsposp("UTP3",6+2*kNlayer,"UTF1", xpos,ypos,zpos
1973                     ,matrix[3],"ONLY",parPWR,kNparPWR);
1974   gMC->Gsposp("UTP3",6+3*kNlayer,"UTF1",-xpos,ypos,zpos
1975                     ,matrix[3],"ONLY",parPWR,kNparPWR);
1976   gMC->Gsposp("UTP3",6+4*kNlayer,"UTF2", xpos,ypos,zpos
1977                     ,matrix[3],"ONLY",parPWR,kNparPWR);
1978   gMC->Gsposp("UTP3",6+5*kNlayer,"UTF2",-xpos,ypos,zpos
1979                     ,matrix[3],"ONLY",parPWR,kNparPWR);
1980   // In baby frame
1981   xpos      = fCwidth[5]/2.0 + kPWRhgt/2.0 - 3.0;
1982   ypos      = kBBSdz/2.0 - kBBMdz/2.0;
1983   zpos      = fgkSheight/2.0 - fgkSMpltT - 0.6 - kPWRwid/2.0;
1984   parPWR[0] = kPWRwid/2.0;
1985   parPWR[1] = kBBSdz /2.0;
1986   parPWR[2] = kPWRhgt/2.0;
1987   gMC->Gsposp("UTP3",6+6*kNlayer,"BBTRD", xpos, ypos, zpos
1988                     ,matrix[3],"ONLY",parPWR,kNparPWR);
1989   gMC->Gsposp("UTP3",6+7*kNlayer,"BBTRD",-xpos, ypos, zpos
1990                     ,matrix[3],"ONLY",parPWR,kNparPWR);
1991   // In back frame
1992   xpos      = fCwidth[5]/2.0 + kPWRhgt/2.0 - 1.3;
1993   ypos      = -kBFSdz/2.0 + kBFMdz/2.0;
1994   zpos      = fgkSheight/2.0 - fgkSMpltT - 0.6 - kPWRwid/2.0;
1995   parPWR[0] = kPWRwid/2.0;
1996   parPWR[1] = kBFSdz /2.0;
1997   parPWR[2] = kPWRhgt/2.0;
1998   gMC->Gsposp("UTP3",6+8*kNlayer,"BFTRD", xpos,ypos,zpos
1999                     ,matrix[3],"ONLY",parPWR,kNparPWR);
2000   gMC->Gsposp("UTP3",6+9*kNlayer,"BFTRD",-xpos,ypos,zpos
2001                     ,matrix[3],"ONLY",parPWR,kNparPWR);
2002
2003   //
2004   // The gas tubes connecting the chambers in the super modules with holes
2005   // Material: Stainless steel
2006   //
2007
2008   parTube[0] = 0.0;
2009   parTube[1] = 2.2/2.0;
2010   parTube[2] = fClength[5][2]/2.0 - fgkHspace/2.0;
2011   gMC->Gsvolu("UTG1","TUBE",idtmed[1308-1],parTube,kNparTube);
2012   parTube[0] = 0.0;
2013   parTube[1] = 2.1/2.0;
2014   parTube[2] = fClength[5][2]/2.0 - fgkHspace/2.0;
2015   gMC->Gsvolu("UTG2","TUBE",idtmed[1309-1],parTube,kNparTube);
2016   xpos  = 0.0;
2017   ypos  = 0.0;
2018   zpos  = 0.0;
2019   gMC->Gspos("UTG2",1,"UTG1",xpos,ypos,zpos,0,"ONLY");
2020   for (ilayer = 0; ilayer < kNlayer; ilayer++) {
2021     xpos      = fCwidth[ilayer]/2.0 + kCOLwid/2.0 - 1.5;
2022     ypos      = 0.0;
2023     zpos      = fgkVrocsm + fgkSMpltT + kCOLhgt/2.0 - fgkSheight/2.0 + 5.0
2024               + ilayer * (fgkCH + fgkVspace);
2025     gMC->Gspos("UTG1",1+ilayer,"UTI3", xpos, ypos, zpos,matrix[4],"ONLY");
2026     gMC->Gspos("UTG1",7+ilayer,"UTI3",-xpos, ypos, zpos,matrix[4],"ONLY");
2027   }
2028
2029   //
2030   // The volumes for the services at the chambers
2031   //
2032
2033   const Int_t kNparServ = 3;
2034   Float_t parServ[kNparServ];
2035
2036   for (istack = 0; istack < kNstack; istack++) {
2037     for (ilayer = 0; ilayer < kNlayer; ilayer++) {
2038
2039       Int_t iDet = GetDetectorSec(ilayer,istack);
2040
2041       sprintf(cTagV,"UU%02d",iDet);
2042       parServ[0] = fCwidth[ilayer]         /2.0;
2043       parServ[1] = fClength[ilayer][istack]/2.0 - fgkHspace/2.0;
2044       parServ[2] = fgkVspace               /2.0 - 0.742/2.0;
2045       fChamberUUboxd[iDet][0] = parServ[0];
2046       fChamberUUboxd[iDet][1] = parServ[1];
2047       fChamberUUboxd[iDet][2] = parServ[2];
2048       gMC->Gsvolu(cTagV,"BOX",idtmed[1302-1],parServ,kNparServ);
2049
2050       xpos  = 0.0;
2051       ypos  = fClength[ilayer][0] + fClength[ilayer][1] + fClength[ilayer][2]/2.0;
2052       for (Int_t ic = 0; ic < istack; ic++) {
2053         ypos -= fClength[ilayer][ic];
2054       }
2055       ypos -= fClength[ilayer][istack]/2.0;
2056       zpos  = fgkVrocsm + fgkSMpltT + fgkCH + fgkVspace/2.0 - fgkSheight/2.0
2057             + ilayer * (fgkCH + fgkVspace);
2058       zpos -= 0.742/2.0;
2059       fChamberUUorig[iDet][0] = xpos;
2060       fChamberUUorig[iDet][1] = ypos;
2061       fChamberUUorig[iDet][2] = zpos;
2062
2063     }
2064   }
2065
2066   //
2067   // The cooling pipes inside the service volumes
2068   //
2069
2070   // The cooling pipes
2071   parTube[0] =  0.0;
2072   parTube[1] =  0.0;
2073   parTube[2] =  0.0;
2074   gMC->Gsvolu("UTCP","TUBE",idtmed[1324-1],parTube,0);
2075   // The cooling water
2076   parTube[0] =  0.0;
2077   parTube[1] =  0.2/2.0;
2078   parTube[2] = -1.0;
2079   gMC->Gsvolu("UTCH","TUBE",idtmed[1314-1],parTube,kNparTube);
2080   // Water inside the cooling pipe
2081   xpos = 0.0;
2082   ypos = 0.0;
2083   zpos = 0.0;
2084   gMC->Gspos("UTCH",1,"UTCP",xpos,ypos,zpos,0,"ONLY");
2085
2086   // Position the cooling pipes in the mother volume
2087   for (istack = 0; istack < kNstack; istack++) {
2088     for (ilayer = 0; ilayer < kNlayer; ilayer++) {
2089       Int_t   iDet    = GetDetectorSec(ilayer,istack);
2090       Int_t   iCopy   = GetDetector(ilayer,istack,0) * 100;
2091       Int_t   nMCMrow = GetRowMax(ilayer,istack,0);
2092       Float_t ySize   = (GetChamberLength(ilayer,istack) - 2.0*fgkRpadW)
2093                       / ((Float_t) nMCMrow);
2094       sprintf(cTagV,"UU%02d",iDet);
2095       for (Int_t iMCMrow = 0; iMCMrow < nMCMrow; iMCMrow++) {
2096         xpos   = 0.0;
2097         ypos   = (0.5 + iMCMrow) * ySize - 1.9
2098                - fClength[ilayer][istack]/2.0 + fgkHspace/2.0;
2099         zpos   = 0.0 + 0.742/2.0;
2100         // The cooling pipes
2101         parTube[0] = 0.0;
2102         parTube[1] = 0.3/2.0; // Thickness of the cooling pipes
2103         parTube[2] = fCwidth[ilayer]/2.0;
2104         gMC->Gsposp("UTCP",iCopy+iMCMrow,cTagV,xpos,ypos,zpos
2105                           ,matrix[2],"ONLY",parTube,kNparTube);
2106       }
2107     }
2108   }
2109
2110   //
2111   // The power lines
2112   //
2113
2114   // The copper power lines
2115   parTube[0] = 0.0;
2116   parTube[1] = 0.0;
2117   parTube[2] = 0.0;
2118   gMC->Gsvolu("UTPL","TUBE",idtmed[1305-1],parTube,0);
2119
2120   // Position the power lines in the mother volume
2121   for (istack = 0; istack < kNstack; istack++) {
2122     for (ilayer = 0; ilayer < kNlayer; ilayer++) {
2123       Int_t   iDet    = GetDetectorSec(ilayer,istack);
2124       Int_t   iCopy   = GetDetector(ilayer,istack,0) * 100;
2125       Int_t   nMCMrow = GetRowMax(ilayer,istack,0);
2126       Float_t ySize   = (GetChamberLength(ilayer,istack) - 2.0*fgkRpadW)
2127                       / ((Float_t) nMCMrow);
2128       sprintf(cTagV,"UU%02d",iDet);
2129       for (Int_t iMCMrow = 0; iMCMrow < nMCMrow; iMCMrow++) {
2130         xpos       = 0.0;
2131         ypos       = (0.5 + iMCMrow) * ySize - 1.0
2132                    - fClength[ilayer][istack]/2.0 + fgkHspace/2.0;
2133         zpos       = -0.4 + 0.742/2.0;
2134         parTube[0] = 0.0;
2135         parTube[1] = 0.2/2.0; // Thickness of the power lines
2136         parTube[2] = fCwidth[ilayer]/2.0;
2137         gMC->Gsposp("UTPL",iCopy+iMCMrow,cTagV,xpos,ypos,zpos
2138                           ,matrix[2],"ONLY",parTube,kNparTube);
2139       }
2140     }
2141   }
2142
2143   //
2144   // The MCMs
2145   //
2146
2147   const Float_t kMCMx    = 3.0;
2148   const Float_t kMCMy    = 3.0;
2149   const Float_t kMCMz    = 0.3;
2150
2151   const Float_t kMCMpcTh = 0.1;
2152   const Float_t kMCMcuTh = 0.0025;
2153   const Float_t kMCMsiTh = 0.03;
2154   const Float_t kMCMcoTh = 0.04;
2155
2156   // The mother volume for the MCMs (air)
2157   const Int_t kNparMCM = 3;
2158   Float_t parMCM[kNparMCM];
2159   parMCM[0] = kMCMx   /2.0;
2160   parMCM[1] = kMCMy   /2.0;
2161   parMCM[2] = kMCMz   /2.0;
2162   gMC->Gsvolu("UMCM","BOX",idtmed[1302-1],parMCM,kNparMCM);
2163
2164   // The MCM carrier G10 layer
2165   parMCM[0] = kMCMx   /2.0;
2166   parMCM[1] = kMCMy   /2.0;
2167   parMCM[2] = kMCMpcTh/2.0;
2168   gMC->Gsvolu("UMC1","BOX",idtmed[1319-1],parMCM,kNparMCM);
2169   // The MCM carrier Cu layer
2170   parMCM[0] = kMCMx   /2.0;
2171   parMCM[1] = kMCMy   /2.0;
2172   parMCM[2] = kMCMcuTh/2.0;
2173   gMC->Gsvolu("UMC2","BOX",idtmed[1318-1],parMCM,kNparMCM);
2174   // The silicon of the chips
2175   parMCM[0] = kMCMx   /2.0;
2176   parMCM[1] = kMCMy   /2.0;
2177   parMCM[2] = kMCMsiTh/2.0;
2178   gMC->Gsvolu("UMC3","BOX",idtmed[1320-1],parMCM,kNparMCM);
2179   // The aluminum of the cooling plates
2180   parMCM[0] = kMCMx   /2.0;
2181   parMCM[1] = kMCMy   /2.0;
2182   parMCM[2] = kMCMcoTh/2.0;
2183   gMC->Gsvolu("UMC4","BOX",idtmed[1324-1],parMCM,kNparMCM);
2184
2185   // Put the MCM material inside the MCM mother volume
2186   xpos  =  0.0;
2187   ypos  =  0.0;
2188   zpos  = -kMCMz   /2.0 + kMCMpcTh/2.0;
2189   gMC->Gspos("UMC1",1,"UMCM",xpos,ypos,zpos,0,"ONLY");
2190   zpos +=  kMCMpcTh/2.0 + kMCMcuTh/2.0;
2191   gMC->Gspos("UMC2",1,"UMCM",xpos,ypos,zpos,0,"ONLY");
2192   zpos +=  kMCMcuTh/2.0 + kMCMsiTh/2.0;
2193   gMC->Gspos("UMC3",1,"UMCM",xpos,ypos,zpos,0,"ONLY");
2194   zpos +=  kMCMsiTh/2.0 + kMCMcoTh/2.0;
2195   gMC->Gspos("UMC4",1,"UMCM",xpos,ypos,zpos,0,"ONLY");
2196
2197   // Position the MCMs in the mother volume
2198   for (istack = 0; istack < kNstack; istack++) {
2199     for (ilayer = 0; ilayer < kNlayer; ilayer++) {
2200       Int_t   iDet    = GetDetectorSec(ilayer,istack);
2201       Int_t   iCopy   = GetDetector(ilayer,istack,0) * 1000;
2202       Int_t   nMCMrow = GetRowMax(ilayer,istack,0);
2203       Float_t ySize   = (GetChamberLength(ilayer,istack) - 2.0*fgkRpadW)
2204                       / ((Float_t) nMCMrow);
2205       Int_t   nMCMcol = 8;
2206       Float_t xSize   = (GetChamberWidth(ilayer)         - 2.0*fgkCpadW)
2207                       / ((Float_t) nMCMcol + 6);             // Introduce 6 gaps
2208       Int_t   iMCM[8] = {  1,  2,  3,  5,  8,  9, 10, 12 };  // 0..7 MCM + 6 gap structure
2209       sprintf(cTagV,"UU%02d",iDet);
2210       for (Int_t iMCMrow = 0; iMCMrow < nMCMrow; iMCMrow++) {
2211         for (Int_t iMCMcol = 0; iMCMcol < nMCMcol; iMCMcol++) {
2212           xpos      = (0.5 + iMCM[iMCMcol]) * xSize + 1.0
2213                     - fCwidth[ilayer]/2.0;
2214           ypos      = (0.5 + iMCMrow) * ySize + 1.0
2215                     - fClength[ilayer][istack]/2.0 + fgkHspace/2.0;
2216           zpos      = -0.4 + 0.742/2.0;
2217           gMC->Gspos("UMCM",iCopy+iMCMrow*10+iMCMcol,cTagV
2218                            ,xpos,ypos,zpos,0,"ONLY");
2219         }
2220       }
2221
2222     }
2223   }
2224
2225   //
2226   // Services in front of the super module
2227   //
2228
2229   // Gas in-/outlet pipes (INOX)
2230   parTube[0] = 0.0;
2231   parTube[1] = 0.0;
2232   parTube[2] = 0.0;
2233   gMC->Gsvolu("UTG3","TUBE",idtmed[1308-1],parTube,0);
2234   // The gas inside the in-/outlet pipes (Xe)
2235   parTube[0] =  0.0;
2236   parTube[1] =  1.2/2.0;
2237   parTube[2] = -1.0;
2238   gMC->Gsvolu("UTG4","TUBE",idtmed[1309-1],parTube,kNparTube);
2239   xpos = 0.0;
2240   ypos = 0.0;
2241   zpos = 0.0;
2242   gMC->Gspos("UTG4",1,"UTG3",xpos,ypos,zpos,0,"ONLY");
2243   for (ilayer = 0; ilayer < kNlayer-1; ilayer++) {
2244     xpos       = 0.0;
2245     ypos       = fClength[ilayer][2]/2.0
2246                + fClength[ilayer][1]
2247                + fClength[ilayer][0];
2248     zpos       = 9.0 - fgkSheight/2.0
2249                + ilayer * (fgkCH + fgkVspace);
2250     parTube[0] = 0.0;
2251     parTube[1] = 1.5/2.0;
2252     parTube[2] = fCwidth[ilayer]/2.0 - 2.5;
2253     gMC->Gsposp("UTG3",ilayer+1          ,"UTI1", xpos, ypos, zpos
2254                       ,matrix[2],"ONLY",parTube,kNparTube);
2255     gMC->Gsposp("UTG3",ilayer+1+1*kNlayer,"UTI1", xpos,-ypos, zpos
2256                       ,matrix[2],"ONLY",parTube,kNparTube);
2257     gMC->Gsposp("UTG3",ilayer+1+2*kNlayer,"UTI2", xpos, ypos, zpos
2258                       ,matrix[2],"ONLY",parTube,kNparTube);
2259     gMC->Gsposp("UTG3",ilayer+1+3*kNlayer,"UTI2", xpos,-ypos, zpos
2260                       ,matrix[2],"ONLY",parTube,kNparTube);
2261     gMC->Gsposp("UTG3",ilayer+1+4*kNlayer,"UTI3", xpos, ypos, zpos
2262                       ,matrix[2],"ONLY",parTube,kNparTube);
2263     gMC->Gsposp("UTG3",ilayer+1+5*kNlayer,"UTI3", xpos,-ypos, zpos
2264                       ,matrix[2],"ONLY",parTube,kNparTube);
2265   }
2266
2267   // Gas distribution box
2268   parBox[0] = 14.50/2.0;
2269   parBox[1] =  4.52/2.0;
2270   parBox[2] =  5.00/2.0;
2271   gMC->Gsvolu("UTGD","BOX ",idtmed[1308-1],parBox,kNparBox);
2272   parBox[0] = 14.50/2.0;
2273   parBox[1] =  4.00/2.0;
2274   parBox[2] =  4.40/2.0;
2275   gMC->Gsvolu("UTGI","BOX ",idtmed[1309-1],parBox,kNparBox);
2276   parTube[0] = 0.0;
2277   parTube[1] = 4.0/2.0;
2278   parTube[2] = 8.0/2.0;
2279   gMC->Gsvolu("UTGT","TUBE",idtmed[1308-1],parTube,kNparTube);
2280   parTube[0] = 0.0;
2281   parTube[1] = 3.4/2.0;
2282   parTube[2] = 8.0/2.0;
2283   gMC->Gsvolu("UTGG","TUBE",idtmed[1309-1],parTube,kNparTube);
2284   xpos = 0.0;
2285   ypos = 0.0;
2286   zpos = 0.0;
2287   gMC->Gspos("UTGI",1,"UTGD",xpos,ypos,zpos,        0,"ONLY");
2288   gMC->Gspos("UTGG",1,"UTGT",xpos,ypos,zpos,        0,"ONLY");
2289   xpos = 0.0;
2290   ypos = 0.0;
2291   zpos = 0.0;
2292   gMC->Gspos("UTGD",1,"UTF1",xpos,ypos,zpos,        0,"ONLY");
2293   xpos =  -3.0;
2294   ypos =   0.0;
2295   zpos =   6.5;
2296   gMC->Gspos("UTGT",1,"UTF1",xpos,ypos,zpos,        0,"ONLY");
2297   xpos = -11.25;
2298   ypos =   0.0;
2299   zpos =   0.5;
2300   gMC->Gspos("UTGT",3,"UTF1",xpos,ypos,zpos,matrix[2],"ONLY");
2301   xpos =  11.25;
2302   ypos =   0.0;
2303   zpos =   0.5;
2304   gMC->Gspos("UTGT",5,"UTF1",xpos,ypos,zpos,matrix[2],"ONLY");
2305
2306   // Cooling manifolds
2307   parBox[0]  =  5.0/2.0;
2308   parBox[1]  = 23.0/2.0;
2309   parBox[2]  = 70.0/2.0;
2310   gMC->Gsvolu("UTCM","BOX ",idtmed[1302-1],parBox,kNparBox);
2311   parBox[0]  =  5.0/2.0;
2312   parBox[1]  =  5.0/2.0;
2313   parBox[2]  = 70.0/2.0;
2314   gMC->Gsvolu("UTCA","BOX ",idtmed[1308-1],parBox,kNparBox);
2315   parBox[0]  =  5.0/2.0 - 0.3;
2316   parBox[1]  =  5.0/2.0 - 0.3;
2317   parBox[2]  = 70.0/2.0 - 0.3;
2318   gMC->Gsvolu("UTCW","BOX ",idtmed[1314-1],parBox,kNparBox);
2319   xpos       =  0.0;
2320   ypos       =  0.0;
2321   zpos       =  0.0;
2322   gMC->Gspos("UTCW",1,"UTCA", xpos, ypos, zpos,        0,"ONLY");
2323   xpos       =  0.0;
2324   ypos       =  5.0/2.0 - 23.0/2.0;
2325   zpos       =  0.0;
2326   gMC->Gspos("UTCA",1,"UTCM", xpos, ypos, zpos,        0,"ONLY");
2327   parTube[0] =  0.0;
2328   parTube[1] =  3.0/2.0;
2329   parTube[2] = 18.0/2.0;
2330   gMC->Gsvolu("UTCO","TUBE",idtmed[1308-1],parTube,kNparTube);
2331   parTube[0] =  0.0;
2332   parTube[1] =  3.0/2.0 - 0.3;
2333   parTube[2] = 18.0/2.0;
2334   gMC->Gsvolu("UTCL","TUBE",idtmed[1314-1],parTube,kNparTube);
2335   xpos       =  0.0;
2336   ypos       =  0.0;
2337   zpos       =  0.0;
2338   gMC->Gspos("UTCL",1,"UTCO", xpos, ypos, zpos,        0,"ONLY");
2339   xpos       =  0.0;
2340   ypos       =  2.5;
2341   zpos       = -70.0/2.0 + 7.0;
2342   gMC->Gspos("UTCO",1,"UTCM", xpos, ypos, zpos,matrix[4],"ONLY");
2343   zpos      +=  7.0;
2344   gMC->Gspos("UTCO",2,"UTCM", xpos, ypos, zpos,matrix[4],"ONLY");
2345   zpos      +=  7.0;
2346   gMC->Gspos("UTCO",3,"UTCM", xpos, ypos, zpos,matrix[4],"ONLY");
2347   zpos      +=  7.0;
2348   gMC->Gspos("UTCO",4,"UTCM", xpos, ypos, zpos,matrix[4],"ONLY");
2349   zpos      +=  7.0;
2350   gMC->Gspos("UTCO",5,"UTCM", xpos, ypos, zpos,matrix[4],"ONLY");
2351   zpos      +=  7.0;
2352   gMC->Gspos("UTCO",6,"UTCM", xpos, ypos, zpos,matrix[4],"ONLY");
2353   zpos      +=  7.0;
2354   gMC->Gspos("UTCO",7,"UTCM", xpos, ypos, zpos,matrix[4],"ONLY");
2355   zpos      +=  7.0;
2356   gMC->Gspos("UTCO",8,"UTCM", xpos, ypos, zpos,matrix[4],"ONLY");
2357
2358   xpos = 40.0;
2359   ypos =  fgkFlength/2.0 - 23.0/2.0;
2360   zpos =  0.0;
2361   gMC->Gspos("UTCM",1,"UTF1", xpos, ypos, zpos,matrix[0],"ONLY");
2362   gMC->Gspos("UTCM",2,"UTF1",-xpos, ypos, zpos,matrix[1],"ONLY");
2363   gMC->Gspos("UTCM",3,"UTF2", xpos,-ypos, zpos,matrix[5],"ONLY");
2364   gMC->Gspos("UTCM",4,"UTF2",-xpos,-ypos, zpos,matrix[6],"ONLY");
2365
2366   // Power connection boards (Cu)
2367   parBox[0] =  0.5/2.0;
2368   parBox[1] = 15.0/2.0;
2369   parBox[2] =  7.0/2.0;
2370   gMC->Gsvolu("UTPC","BOX ",idtmed[1325-1],parBox,kNparBox);
2371   for (ilayer = 0; ilayer < kNlayer-1; ilayer++) {
2372     xpos      = fCwidth[ilayer]/2.0 + kPWRwid/2.0;
2373     ypos      = 0.0;
2374     zpos      = fgkVrocsm + fgkSMpltT + kPWRhgt/2.0 - fgkSheight/2.0 + kPWRposz
2375               + (ilayer+1) * (fgkCH + fgkVspace);
2376     gMC->Gspos("UTPC",ilayer        ,"UTF1", xpos,ypos,zpos,matrix[0],"ONLY");
2377     gMC->Gspos("UTPC",ilayer+kNlayer,"UTF1",-xpos,ypos,zpos,matrix[1],"ONLY");
2378   }
2379   xpos      = fCwidth[5]/2.0 + kPWRhgt/2.0 - 2.0;
2380   ypos      = 0.0;
2381   zpos      = fgkSheight/2.0 - fgkSMpltT - 2.0;
2382   gMC->Gspos("UTPC",5        ,"UTF1", xpos,ypos,zpos,matrix[3],"ONLY");
2383   gMC->Gspos("UTPC",5+kNlayer,"UTF1",-xpos,ypos,zpos,matrix[3],"ONLY");
2384
2385   // Power connection panel (Al)
2386   parBox[0] = 60.0/2.0;
2387   parBox[1] = 10.0/2.0;
2388   parBox[2] =  3.0/2.0;
2389   gMC->Gsvolu("UTPP","BOX ",idtmed[1301-1],parBox,kNparBox);
2390   xpos      =  0.0;
2391   ypos      =  0.0;
2392   zpos      = 18.0;
2393   gMC->Gspos("UTPP",1,"UTF1", xpos,ypos,zpos,0,"ONLY");
2394
2395   //
2396   // Electronics boxes
2397   //
2398
2399   // Casing (INOX)
2400   parBox[0] = 60.0/2.0;
2401   parBox[1] = 10.0/2.0;
2402   parBox[2] =  6.0/2.0;
2403   gMC->Gsvolu("UTE1","BOX ",idtmed[1308-1],parBox,kNparBox);
2404   // Interior (air)
2405   parBox[0] = parBox[0] - 0.5;
2406   parBox[1] = parBox[1] - 0.5;
2407   parBox[2] = parBox[2] - 0.5;
2408   gMC->Gsvolu("UTE2","BOX ",idtmed[1302-1],parBox,kNparBox);
2409   xpos      = 0.0;
2410   ypos      = 0.0;
2411   zpos      = 0.0;
2412   gMC->Gspos("UTE2",1,"UTE1",xpos,ypos,zpos,0,"ONLY");
2413   xpos      = 0.0;
2414   ypos      =  fgkSlength/2.0 - 10.0/2.0 - 3.0;
2415   zpos      = -fgkSheight/2.0 +  6.0/2.0 + 1.0;
2416   gMC->Gspos("UTE1",1,"UTI1", xpos,ypos,zpos,0,"ONLY");
2417   gMC->Gspos("UTE1",2,"UTI2", xpos,ypos,zpos,0,"ONLY");
2418   gMC->Gspos("UTE1",3,"UTI3", xpos,ypos,zpos,0,"ONLY");
2419
2420   // Casing (INOX)
2421   parBox[0] = 50.0/2.0;
2422   parBox[1] = 15.0/2.0;
2423   parBox[2] = 20.0/2.0;
2424   gMC->Gsvolu("UTE3","BOX ",idtmed[1308-1],parBox,kNparBox);
2425   // Interior (air)
2426   parBox[0] = parBox[0] - 0.5;
2427   parBox[1] = parBox[1] - 0.5;
2428   parBox[2] = parBox[2] - 0.5;
2429   gMC->Gsvolu("UTE4","BOX ",idtmed[1302-1],parBox,kNparBox);
2430   xpos      = 0.0;
2431   ypos      = 0.0;
2432   zpos      = 0.0;
2433   gMC->Gspos("UTE4",1,"UTE3",xpos,ypos,zpos,0,"ONLY");
2434   xpos      = 0.0;
2435   ypos      = -fgkSlength/2.0 + 15.0/2.0 + 3.0;
2436   zpos      = -fgkSheight/2.0 + 20.0/2.0 + 1.0;
2437   gMC->Gspos("UTE3",1,"UTI1", xpos,ypos,zpos,0,"ONLY");
2438   gMC->Gspos("UTE3",2,"UTI2", xpos,ypos,zpos,0,"ONLY");
2439   gMC->Gspos("UTE3",3,"UTI3", xpos,ypos,zpos,0,"ONLY");
2440
2441   // Casing (INOX)
2442   parBox[0] = 20.0/2.0;
2443   parBox[1] =  7.0/2.0;
2444   parBox[2] = 20.0/2.0;
2445   gMC->Gsvolu("UTE5","BOX ",idtmed[1308-1],parBox,kNparBox);
2446   // Interior (air)
2447   parBox[0] = parBox[0] - 0.5;
2448   parBox[1] = parBox[1] - 0.5;
2449   parBox[2] = parBox[2] - 0.5;
2450   gMC->Gsvolu("UTE6","BOX ",idtmed[1302-1],parBox,kNparBox);
2451   xpos      = 0.0;
2452   ypos      = 0.0;
2453   zpos      = 0.0;
2454   gMC->Gspos("UTE6",1,"UTE5",xpos,ypos,zpos,0,"ONLY");
2455   xpos      = 20.0;
2456   ypos      = -fgkSlength/2.0 +  7.0/2.0 + 3.0;
2457   zpos      = 0.0;
2458   gMC->Gspos("UTE5",1,"UTI1", xpos,ypos,zpos,0,"ONLY");
2459   gMC->Gspos("UTE5",2,"UTI2", xpos,ypos,zpos,0,"ONLY");
2460   gMC->Gspos("UTE5",3,"UTI3", xpos,ypos,zpos,0,"ONLY");
2461   xpos      = -xpos;
2462   gMC->Gspos("UTE5",4,"UTI1", xpos,ypos,zpos,0,"ONLY");
2463   gMC->Gspos("UTE5",5,"UTI2", xpos,ypos,zpos,0,"ONLY");
2464   gMC->Gspos("UTE5",6,"UTI3", xpos,ypos,zpos,0,"ONLY");
2465
2466 }
2467
2468 //_____________________________________________________________________________
2469 void AliTRDgeometry::GroupChamber(Int_t ilayer, Int_t istack, Int_t *idtmed)
2470 {
2471   //
2472   // Group volumes UA, UD, UF, UU in a single chamber (Air)
2473   // UA, UD, UF, UU are boxes
2474   // UT will be a box
2475   //
2476
2477   const Int_t kNparCha = 3;
2478
2479   Int_t iDet = GetDetectorSec(ilayer,istack);
2480
2481   Float_t xyzMin[3];
2482   Float_t xyzMax[3];
2483   Float_t xyzOrig[3];
2484   Float_t xyzBoxd[3];
2485
2486   Char_t  cTagV[5];
2487   Char_t  cTagM[5];
2488
2489   for (Int_t i = 0; i < 3; i++) {
2490     xyzMin[i] = +9999.0;
2491     xyzMax[i] = -9999.0;
2492   }
2493
2494   for (Int_t i = 0; i < 3; i++) {
2495
2496     xyzMin[i] = TMath::Min(xyzMin[i],fChamberUAorig[iDet][i]-fChamberUAboxd[iDet][i]);
2497     xyzMax[i] = TMath::Max(xyzMax[i],fChamberUAorig[iDet][i]+fChamberUAboxd[iDet][i]);
2498
2499     xyzMin[i] = TMath::Min(xyzMin[i],fChamberUDorig[iDet][i]-fChamberUDboxd[iDet][i]);
2500     xyzMax[i] = TMath::Max(xyzMax[i],fChamberUDorig[iDet][i]+fChamberUDboxd[iDet][i]);
2501
2502     xyzMin[i] = TMath::Min(xyzMin[i],fChamberUForig[iDet][i]-fChamberUFboxd[iDet][i]);
2503     xyzMax[i] = TMath::Max(xyzMax[i],fChamberUForig[iDet][i]+fChamberUFboxd[iDet][i]);
2504
2505     xyzMin[i] = TMath::Min(xyzMin[i],fChamberUUorig[iDet][i]-fChamberUUboxd[iDet][i]);
2506     xyzMax[i] = TMath::Max(xyzMax[i],fChamberUUorig[iDet][i]+fChamberUUboxd[iDet][i]);
2507
2508     xyzOrig[i] = 0.5*(xyzMax[i]+xyzMin[i]);
2509     xyzBoxd[i] = 0.5*(xyzMax[i]-xyzMin[i]);
2510
2511   }
2512
2513   sprintf(cTagM,"UT%02d",iDet);
2514   gMC->Gsvolu(cTagM,"BOX ",idtmed[1302-1],xyzBoxd,kNparCha);
2515
2516   sprintf(cTagV,"UA%02d",iDet);
2517   gMC->Gspos(cTagV,1,cTagM
2518             ,fChamberUAorig[iDet][0]-xyzOrig[0]
2519             ,fChamberUAorig[iDet][1]-xyzOrig[1]
2520             ,fChamberUAorig[iDet][2]-xyzOrig[2]
2521             ,0,"ONLY");
2522
2523   sprintf(cTagV,"UZ%02d",iDet);
2524   gMC->Gspos(cTagV,1,cTagM
2525             ,fChamberUAorig[iDet][0]-xyzOrig[0] + fChamberUAboxd[iDet][0] - fgkCroW/2.0
2526             ,fChamberUAorig[iDet][1]-xyzOrig[1]
2527             ,fChamberUAorig[iDet][2]-xyzOrig[2] + fgkCraH/2.0 + fgkCdrH/2.0 - fgkCalW/2.0
2528             ,0,"ONLY");
2529   gMC->Gspos(cTagV,2,cTagM
2530             ,fChamberUAorig[iDet][0]-xyzOrig[0] - fChamberUAboxd[iDet][0] + fgkCroW/2.0
2531             ,fChamberUAorig[iDet][1]-xyzOrig[1]
2532             ,fChamberUAorig[iDet][2]-xyzOrig[2] + fgkCraH/2.0 + fgkCdrH/2.0 - fgkCalW/2.0
2533             ,0,"ONLY");
2534
2535   sprintf(cTagV,"UD%02d",iDet);
2536   gMC->Gspos(cTagV,1,cTagM
2537             ,fChamberUDorig[iDet][0]-xyzOrig[0]
2538             ,fChamberUDorig[iDet][1]-xyzOrig[1]
2539             ,fChamberUDorig[iDet][2]-xyzOrig[2]
2540             ,0,"ONLY");
2541
2542   sprintf(cTagV,"UF%02d",iDet);
2543   gMC->Gspos(cTagV,1,cTagM
2544             ,fChamberUForig[iDet][0]-xyzOrig[0]
2545             ,fChamberUForig[iDet][1]-xyzOrig[1]
2546             ,fChamberUForig[iDet][2]-xyzOrig[2]
2547             ,0,"ONLY");
2548
2549   sprintf(cTagV,"UU%02d",iDet);
2550   gMC->Gspos(cTagV,1,cTagM
2551             ,fChamberUUorig[iDet][0]-xyzOrig[0]
2552             ,fChamberUUorig[iDet][1]-xyzOrig[1]
2553             ,fChamberUUorig[iDet][2]-xyzOrig[2]
2554             ,0,"ONLY");
2555
2556   sprintf(cTagV,"UT%02d",iDet);
2557   gMC->Gspos(cTagV,1,"UTI1"
2558             ,xyzOrig[0]
2559             ,xyzOrig[1]
2560             ,xyzOrig[2]
2561             ,0,"ONLY");
2562   gMC->Gspos(cTagV,1,"UTI2"
2563             ,xyzOrig[0]
2564             ,xyzOrig[1]
2565             ,xyzOrig[2]
2566             ,0,"ONLY");
2567   if (istack != 2) {
2568     // W/o middle stack
2569     gMC->Gspos(cTagV,1,"UTI3"
2570               ,xyzOrig[0]
2571               ,xyzOrig[1]
2572               ,xyzOrig[2]
2573               ,0,"ONLY");
2574   }
2575
2576 }
2577
2578 //_____________________________________________________________________________
2579 Bool_t AliTRDgeometry::RotateBack(Int_t det, Double_t *loc, Double_t *glb) const
2580 {
2581   //
2582   // Rotates a chambers to transform the corresponding local frame
2583   // coordinates <loc> into the coordinates of the ALICE restframe <glb>.
2584   //
2585
2586   Int_t sector = GetSector(det);
2587
2588   glb[0] = loc[0] * fRotB11[sector] - loc[1] * fRotB12[sector];
2589   glb[1] = loc[0] * fRotB21[sector] + loc[1] * fRotB22[sector];
2590   glb[2] = loc[2];
2591
2592   return kTRUE;
2593
2594 }
2595
2596 //_____________________________________________________________________________
2597 Int_t AliTRDgeometry::GetDetectorSec(Int_t layer, Int_t stack)
2598 {
2599   //
2600   // Convert plane / stack into detector number for one single sector
2601   //
2602
2603   return (layer + stack * fgkNlayer);
2604
2605 }
2606
2607 //_____________________________________________________________________________
2608 Int_t AliTRDgeometry::GetDetector(Int_t layer, Int_t stack, Int_t sector)
2609 {
2610   //
2611   // Convert layer / stack / sector into detector number
2612   //
2613
2614   return (layer + stack * fgkNlayer + sector * fgkNlayer * fgkNstack);
2615
2616 }
2617
2618 //_____________________________________________________________________________
2619 Int_t AliTRDgeometry::GetLayer(Int_t det)
2620 {
2621   //
2622   // Reconstruct the layer number from the detector number
2623   //
2624
2625   return ((Int_t) (det % fgkNlayer));
2626
2627 }
2628
2629 //_____________________________________________________________________________
2630 Int_t AliTRDgeometry::GetStack(Int_t det) const
2631 {
2632   //
2633   // Reconstruct the stack number from the detector number
2634   //
2635
2636   return ((Int_t) (det % (fgkNlayer * fgkNstack)) / fgkNlayer);
2637
2638 }
2639
2640 //_____________________________________________________________________________
2641 Int_t AliTRDgeometry::GetStack(Double_t z, Int_t layer)
2642 {
2643   //
2644   // Reconstruct the chamber number from the z position and layer number
2645   //
2646   // The return function has to be protected for positiveness !!
2647   //
2648
2649   if ((layer <          0) ||
2650       (layer >= fgkNlayer)) return -1;
2651
2652   Int_t    istck = fgkNstack;
2653   Double_t zmin;
2654   Double_t zmax;
2655
2656   do {
2657     istck--;
2658     if (istck < 0) break;
2659     AliTRDpadPlane *pp = GetPadPlane(layer,istck);
2660     zmax  = pp->GetRow0();
2661     Int_t nrows = pp->GetNrows();
2662     zmin = zmax -         2 * pp->GetLengthOPad()
2663                 - (nrows-2) * pp->GetLengthIPad()
2664                 - (nrows-1) * pp->GetRowSpacing();
2665   } while((z < zmin) || (z > zmax));
2666
2667   return istck;
2668
2669 }
2670
2671 //_____________________________________________________________________________
2672 Int_t AliTRDgeometry::GetSector(Int_t det) const
2673 {
2674   //
2675   // Reconstruct the sector number from the detector number
2676   //
2677
2678   return ((Int_t) (det / (fgkNlayer * fgkNstack)));
2679
2680 }
2681
2682 //_____________________________________________________________________________
2683 AliTRDpadPlane *AliTRDgeometry::GetPadPlane(Int_t layer, Int_t stack)
2684 {
2685   //
2686   // Returns the pad plane for a given plane <pl> and stack <st> number
2687   //
2688
2689   if (!fPadPlaneArray) {
2690     CreatePadPlaneArray();
2691   }
2692
2693   Int_t ipp = GetDetectorSec(layer,stack);
2694   return ((AliTRDpadPlane *) fPadPlaneArray->At(ipp));
2695
2696 }
2697
2698 //_____________________________________________________________________________
2699 Int_t AliTRDgeometry::GetRowMax(Int_t layer, Int_t stack, Int_t /*sector*/)
2700 {
2701   //
2702   // Returns the number of rows on the pad plane
2703   //
2704
2705   return GetPadPlane(layer,stack)->GetNrows();
2706
2707 }
2708
2709 //_____________________________________________________________________________
2710 Int_t AliTRDgeometry::GetColMax(Int_t layer)
2711 {
2712   //
2713   // Returns the number of rows on the pad plane
2714   //
2715
2716   return GetPadPlane(layer,0)->GetNcols();
2717
2718 }
2719
2720 //_____________________________________________________________________________
2721 Double_t AliTRDgeometry::GetRow0(Int_t layer, Int_t stack, Int_t /*sector*/)
2722 {
2723   //
2724   // Returns the position of the border of the first pad in a row
2725   //
2726
2727   return GetPadPlane(layer,stack)->GetRow0();
2728
2729 }
2730
2731 //_____________________________________________________________________________
2732 Double_t AliTRDgeometry::GetCol0(Int_t layer)
2733 {
2734   //
2735   // Returns the position of the border of the first pad in a column
2736   //
2737
2738   return GetPadPlane(layer,0)->GetCol0();
2739
2740 }
2741
2742 //_____________________________________________________________________________
2743 Bool_t AliTRDgeometry::CreateClusterMatrixArray()
2744 {
2745   //
2746   // Create the matrices to transform cluster coordinates from the
2747   // local chamber system to the tracking coordinate system
2748   //
2749
2750   if (!gGeoManager) {
2751     return kFALSE;
2752   }
2753
2754   fClusterMatrixArray = new TObjArray(kNdet);
2755   AliAlignObjParams o;
2756
2757   for (Int_t iLayer = AliGeomManager::kTRD1; iLayer <= AliGeomManager::kTRD6; iLayer++) {
2758     for (Int_t iModule = 0; iModule < AliGeomManager::LayerSize(iLayer); iModule++) {
2759
2760       Int_t        isector   = iModule/Nstack();
2761       Int_t        istack    = iModule%Nstack();
2762       Int_t        iLayerTRD = iLayer - AliGeomManager::kTRD1;
2763       Int_t        lid       = GetDetector(iLayerTRD,istack,isector);
2764
2765       // Taking holes into account
2766       if (((isector == 13) || (isector == 14) || (isector == 15)) &&
2767           (istack == 2)) continue;
2768
2769       UShort_t     volid   = AliGeomManager::LayerToVolUID(iLayer,iModule);
2770       const char  *symname = AliGeomManager::SymName(volid);
2771       TGeoPNEntry *pne     = gGeoManager->GetAlignableEntry(symname);
2772       const char  *path    = symname;
2773       if (pne) {
2774         path = pne->GetTitle();
2775       }
2776       else {
2777         continue;
2778       }
2779       if (!strstr(path,"ALIC")) {
2780         AliDebug(1,Form("Not a valid path: %s\n",path));
2781         continue;
2782       }
2783       if (!gGeoManager->cd(path)) {
2784         AliError(Form("Cannot go to path: %s\n",path));
2785         continue;
2786       }
2787       TGeoHMatrix *m         = gGeoManager->GetCurrentMatrix();
2788
2789       TGeoRotation mchange;
2790       mchange.RotateY(90);
2791       mchange.RotateX(90);
2792
2793       //
2794       // Cluster transformation matrix
2795       //
2796       TGeoHMatrix  rotMatrix(mchange.Inverse());
2797       rotMatrix.MultiplyLeft(m);
2798       Double_t sectorAngle = 20.0 * (isector % 18) + 10.0;
2799       TGeoHMatrix  rotSector;
2800       rotSector.RotateZ(sectorAngle);
2801       rotMatrix.MultiplyLeft(&rotSector.Inverse());
2802
2803       fClusterMatrixArray->AddAt(new TGeoHMatrix(rotMatrix),lid);
2804
2805     }
2806   }
2807
2808   return kTRUE;
2809
2810 }
2811
2812 //_____________________________________________________________________________
2813 Bool_t AliTRDgeometry::ChamberInGeometry(Int_t det)
2814 {
2815   //
2816   // Checks whether the given detector is part of the current geometry
2817   //
2818
2819   if (!fClusterMatrixArray) {
2820     CreateClusterMatrixArray();
2821   }
2822
2823   if (!GetClusterMatrix(det)) {
2824     return kFALSE;
2825   }
2826   else {
2827     return kTRUE;
2828   }
2829
2830 }