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 <TVirtualMC.h>
  27 #include <TMath.h>
  28
  29 #include "AliLog.h"
  30 #include "AliAlignObjParams.h"
  31
  32 #include "AliTRDgeometry.h"
  33 #include "AliTRDpadPlane.h"
  34
  35 ClassImp(AliTRDgeometry)
  36
  37 //_____________________________________________________________________________
  38
  39   //
  40   // The geometry constants
  41   //
  42   const Int_t    AliTRDgeometry::fgkNsector   = kNsector;
  43   const Int_t    AliTRDgeometry::fgkNlayer    = kNlayer;
  44   const Int_t    AliTRDgeometry::fgkNstack    = kNstack;
  45   const Int_t    AliTRDgeometry::fgkNdet      = kNdet;
  46
  47   //
  48   // Dimensions of the detector
  49   //
  50
  51   // Total length of the TRD mother volume
  52   const Float_t  AliTRDgeometry::fgkTlength   = 751.0;
  53
  54   // Parameter of the super module mother volumes
  55   const Float_t  AliTRDgeometry::fgkSheight   =  77.9;
  56   const Float_t  AliTRDgeometry::fgkSwidth1   =  94.881;
  57   const Float_t  AliTRDgeometry::fgkSwidth2   = 122.353;
  58   const Float_t  AliTRDgeometry::fgkSlength   = 702.0;
  59
  60   // Length of the additional space in front of the supermodule
  61   // used for services
  62   const Float_t  AliTRDgeometry::fgkFlength   = (AliTRDgeometry::fgkTlength
  63                                                - AliTRDgeometry::fgkSlength) / 2.0;
  64
  65   // The super module side plates
  66   const Float_t  AliTRDgeometry::fgkSMpltT    =   0.2;
  67
  68   // Vertical spacing of the chambers
  69   const Float_t  AliTRDgeometry::fgkVspace    =   1.784;
  70   // Horizontal spacing of the chambers
  71   const Float_t  AliTRDgeometry::fgkHspace    =   2.0;
  72   // Radial distance of the first ROC to the outer plates of the SM
  73   const Float_t  AliTRDgeometry::fgkVrocsm    =   1.2;
  74
  75   // Height of different chamber parts
  76   // Radiator
  77   const Float_t  AliTRDgeometry::fgkCraH      =   4.8;
  78   // Drift region
  79   const Float_t  AliTRDgeometry::fgkCdrH      =   3.0;
  80   // Amplification region
  81   const Float_t  AliTRDgeometry::fgkCamH      =   0.7;
  82   // Readout
  83   const Float_t  AliTRDgeometry::fgkCroH      =   2.316;
  84   // Additional width of the readout chamber frames
  85   const Float_t  AliTRDgeometry::fgkCroW      =   0.9;
  86   // Services on top of ROC
  87   const Float_t  AliTRDgeometry::fgkCsvH      = AliTRDgeometry::fgkVspace
  88                                               -   0.742;
  89   // Total height (w/o services)
  90   const Float_t  AliTRDgeometry::fgkCH        = AliTRDgeometry::fgkCraH
  91                                               + AliTRDgeometry::fgkCdrH
  92                                               + AliTRDgeometry::fgkCamH
  93                                               + AliTRDgeometry::fgkCroH;
  94   // Total height (with services)
  95
  96   const Float_t  AliTRDgeometry::fgkCHsv      = AliTRDgeometry::fgkCH
  97                                               + AliTRDgeometry::fgkCsvH;
  98
  99   // Distance of anode wire plane relative to middle of alignable volume
 100   const Float_t  AliTRDgeometry::fgkAnodePos  = AliTRDgeometry::fgkCraH
 101                                               + AliTRDgeometry::fgkCdrH
 102                                               + AliTRDgeometry::fgkCamH/2.0
 103                                               - AliTRDgeometry::fgkCHsv/2.0;
 104
 105   // Thicknesses of different parts of the chamber frame
 106   // Lower aluminum frame
 107   const Float_t  AliTRDgeometry::fgkCalT      =   0.4;
 108   // Lower Wacosit frame sides
 109   const Float_t  AliTRDgeometry::fgkCclsT     =   0.21;
 110   // Lower Wacosit frame front
 111   const Float_t  AliTRDgeometry::fgkCclfT     =   1.0;
 112   // Thickness of glue around radiator
 113   const Float_t  AliTRDgeometry::fgkCglT      =   0.25;
 114   // Upper Wacosit frame around amplification region
 115   const Float_t  AliTRDgeometry::fgkCcuTa     =   1.0;
 116   const Float_t  AliTRDgeometry::fgkCcuTb     =   0.8;
 117   // Al frame of back panel
 118   const Float_t  AliTRDgeometry::fgkCauT      =   1.5;
 119   // Additional Al ledge at the lower chamber frame
 120   // Actually the dimensions are not realistic, but
 121   // modified in order to allow to mis-alignment.
 122   // The amount of material is, however, correct
 123   const Float_t  AliTRDgeometry::fgkCalW      =   2.5;
 124   const Float_t  AliTRDgeometry::fgkCalH      =   0.4;
 125   const Float_t  AliTRDgeometry::fgkCalWmod   =   0.4;
 126   const Float_t  AliTRDgeometry::fgkCalHmod   =   2.5;
 127   // Additional Wacosit ledge at the lower chamber frame
 128   const Float_t  AliTRDgeometry::fgkCwsW      =   1.2;
 129   const Float_t  AliTRDgeometry::fgkCwsH      =   0.3;
 130
 131   // Difference of outer chamber width and pad plane width
 132   const Float_t  AliTRDgeometry::fgkCpadW     =   0.0;
 133   const Float_t  AliTRDgeometry::fgkRpadW     =   1.0;
 134
 135   //
 136   // Thickness of the the material layers
 137   //
 138   const Float_t  AliTRDgeometry::fgkDrThick   = AliTRDgeometry::fgkCdrH;
 139   const Float_t  AliTRDgeometry::fgkAmThick   = AliTRDgeometry::fgkCamH;
 140   const Float_t  AliTRDgeometry::fgkXeThick   = AliTRDgeometry::fgkDrThick
 141                                               + AliTRDgeometry::fgkAmThick;
 142   const Float_t  AliTRDgeometry::fgkWrThick   = 0.00011;
 143
 144   const Float_t  AliTRDgeometry::fgkRMyThick  = 0.0015;
 145   const Float_t  AliTRDgeometry::fgkRCbThick  = 0.0055;
 146   const Float_t  AliTRDgeometry::fgkRGlThick  = 0.0065;
 147   const Float_t  AliTRDgeometry::fgkRRhThick  = 0.8;
 148   const Float_t  AliTRDgeometry::fgkRFbThick  = fgkCraH - 2.0 * (fgkRMyThick
 149                                                                + fgkRCbThick
 150                                                                + fgkRRhThick);
 151
 152   const Float_t  AliTRDgeometry::fgkPPdThick  = 0.0025;
 153   const Float_t  AliTRDgeometry::fgkPPpThick  = 0.0356;
 154   const Float_t  AliTRDgeometry::fgkPGlThick  = 0.1428;
 155   const Float_t  AliTRDgeometry::fgkPCbThick  = 0.019;
 156   const Float_t  AliTRDgeometry::fgkPPcThick  = 0.0486;
 157   const Float_t  AliTRDgeometry::fgkPRbThick  = 0.0057;
 158   const Float_t  AliTRDgeometry::fgkPElThick  = 0.0029;
 159   const Float_t  AliTRDgeometry::fgkPHcThick  = fgkCroH - fgkPPdThick
 160                                                         - fgkPPpThick
 161                                                         - fgkPGlThick
 162                                                         - fgkPCbThick * 2.0
 163                                                         - fgkPPcThick
 164                                                         - fgkPRbThick
 165                                                         - fgkPElThick;
 166
 167   //
 168   // Position of the material layers
 169   //
 170   const Float_t  AliTRDgeometry::fgkDrZpos    =  2.4;
 171   const Float_t  AliTRDgeometry::fgkAmZpos    =  0.0;
 172   const Float_t  AliTRDgeometry::fgkWrZposA   =  0.0;
 173   const Float_t  AliTRDgeometry::fgkWrZposB   = -fgkAmThick/2.0 + 0.001;
 174   const Float_t  AliTRDgeometry::fgkCalZpos   =  0.3;
 175
 176   const Int_t    AliTRDgeometry::fgkMCMmax    = 16;
 177   const Int_t    AliTRDgeometry::fgkMCMrow    = 4;
 178   const Int_t    AliTRDgeometry::fgkROBmaxC0  = 6;
 179   const Int_t    AliTRDgeometry::fgkROBmaxC1  = 8;
 180   const Int_t    AliTRDgeometry::fgkADCmax    = 21;
 181   const Int_t    AliTRDgeometry::fgkTBmax     = 60;
 182   const Int_t    AliTRDgeometry::fgkPadmax    = 18;
 183   const Int_t    AliTRDgeometry::fgkColmax    = 144;
 184   const Int_t    AliTRDgeometry::fgkRowmaxC0  = 12;
 185   const Int_t    AliTRDgeometry::fgkRowmaxC1  = 16;
 186
 187   const Double_t AliTRDgeometry::fgkTime0Base = 300.65;
 188   const Float_t  AliTRDgeometry::fgkTime0[6]  = { fgkTime0Base + 0 * (Cheight() + Cspace())
 189                                                 , fgkTime0Base + 1 * (Cheight() + Cspace())
 190                                                 , fgkTime0Base + 2 * (Cheight() + Cspace())
 191                                                 , fgkTime0Base + 3 * (Cheight() + Cspace())
 192                                                 , fgkTime0Base + 4 * (Cheight() + Cspace())
 193                                                 , fgkTime0Base + 5 * (Cheight() + Cspace())};
 194
 195   const Double_t AliTRDgeometry::fgkXtrdBeg   = 288.43; // Values depend on position of TRD
 196   const Double_t AliTRDgeometry::fgkXtrdEnd   = 366.33; // mother volume inside space frame !!!
 197
 198   // The outer width of the chambers
 199   const Float_t AliTRDgeometry::fgkCwidth[kNlayer] = {90.4, 94.8, 99.3, 103.7, 108.1, 112.6};
 200
 201   // The outer lengths of the chambers
 202   // Includes the spacings between the chambers!
 203   const Float_t AliTRDgeometry::fgkClength[kNlayer][kNstack] = { { 124.0, 124.0, 110.0, 124.0, 124.0 }
 204                                                               , { 124.0, 124.0, 110.0, 124.0, 124.0 }
 205                                                               , { 131.0, 131.0, 110.0, 131.0, 131.0 }
 206                                                               , { 138.0, 138.0, 110.0, 138.0, 138.0 }
 207                                                               , { 145.0, 145.0, 110.0, 145.0, 145.0 }
 208                                                               , { 147.0, 147.0, 110.0, 147.0, 147.0 } };
 209
 210   TObjArray* AliTRDgeometry::fgClusterMatrixArray = NULL;
 211
 212   TObjArray* AliTRDgeometry::fgPadPlaneArray = NULL;
 213
 214 //_____________________________________________________________________________
 215 AliTRDgeometry::AliTRDgeometry()
 216   :AliGeometry()
 217 {
 218   //
 219   // AliTRDgeometry default constructor
 220   //
 221
 222   Init();
 223
 224 }
 225
 226 //_____________________________________________________________________________
 227 AliTRDgeometry::AliTRDgeometry(const AliTRDgeometry &g)
 228   :AliGeometry(g)
 229 {
 230   //
 231   // AliTRDgeometry copy constructor
 232   //
 233
 234   Init();
 235
 236 }
 237
 238 //_____________________________________________________________________________
 239 AliTRDgeometry::~AliTRDgeometry()
 240 {
 241   //
 242   // AliTRDgeometry destructor
 243   //
 244
 245 }
 246
 247 //_____________________________________________________________________________
 248 AliTRDgeometry &AliTRDgeometry::operator=(const AliTRDgeometry &g)
 249 {
 250   //
 251   // Assignment operator
 252   //
 253
 254   if (this != &g) {
 255     Init();
 256   }
 257
 258   return *this;
 259
 260 }
 261
 262 //_____________________________________________________________________________
 263 void AliTRDgeometry::Init()
 264 {
 265   //
 266   // Initializes the geometry parameter
 267   //
 268
 269   // The rotation matrix elements
 270   Float_t phi = 0.0;
 271   for (Int_t isector = 0; isector < fgkNsector; isector++) {
 272     phi = 2.0 * TMath::Pi() /  (Float_t) fgkNsector * ((Float_t) isector + 0.5);
 273     fRotB11[isector] = TMath::Cos(phi);
 274     fRotB12[isector] = TMath::Sin(phi);
 275     fRotB21[isector] = TMath::Sin(phi);
 276     fRotB22[isector] = TMath::Cos(phi);
 277   }
 278
 279   // SM status
 280   for (Int_t i = 0; i < kNsector; i++) {
 281     fSMstatus[i] = 1;
 282   }
 283
 284 }
 285
 286 //_____________________________________________________________________________
 287 void AliTRDgeometry::CreatePadPlaneArray()
 288 {
 289   //
 290   // Creates the array of AliTRDpadPlane objects
 291   //
 292
 293   if (fgPadPlaneArray)
 294     return;
 295
 296   fgPadPlaneArray = new TObjArray(fgkNlayer * fgkNstack);
 297   for (Int_t ilayer = 0; ilayer < fgkNlayer; ilayer++) {
 298     for (Int_t istack = 0; istack < fgkNstack; istack++) {
 299       Int_t ipp = GetDetectorSec(ilayer,istack);
 300       fgPadPlaneArray->AddAt(CreatePadPlane(ilayer,istack),ipp);
 301     }
 302   }
 303
 304 }
 305
 306 //_____________________________________________________________________________
 307 AliTRDpadPlane *AliTRDgeometry::CreatePadPlane(Int_t ilayer, Int_t istack)
 308 {
 309   //
 310   // Creates an AliTRDpadPlane object
 311   //
 312
 313   AliTRDpadPlane *padPlane = new AliTRDpadPlane();
 314
 315   padPlane->SetLayer(ilayer);
 316   padPlane->SetStack(istack);
 317
 318   padPlane->SetRowSpacing(0.0);
 319   padPlane->SetColSpacing(0.0);
 320
 321   padPlane->SetLengthRim(1.0);
 322   padPlane->SetWidthRim(0.5);
 323
 324   padPlane->SetNcols(144);
 325
 326   padPlane->SetAnodeWireOffset(0.25);
 327
 328   //
 329   // The pad plane parameter
 330   //
 331   const Float_t kTiltAngle = 2.0;
 332   switch (ilayer) {
 333   case 0:
 334     if (istack == 2) {
 335       // L0C0 type
 336       padPlane->SetNrows(12);
 337       padPlane->SetLength(108.0);
 338       padPlane->SetLengthOPad(8.0);
 339       padPlane->SetLengthIPad(9.0);
 340     }
 341     else {
 342       // L0C1 type
 343       padPlane->SetNrows(16);
 344       padPlane->SetLength(122.0);
 345       padPlane->SetLengthOPad(7.5);
 346       padPlane->SetLengthIPad(7.5);
 347     }
 348     padPlane->SetWidth(92.2);
 349     padPlane->SetWidthOPad(0.515);
 350     padPlane->SetWidthIPad(0.635);
 351     padPlane->SetTiltingAngle(-kTiltAngle);
 352     break;
 353   case 1:
 354     if (istack == 2) {
 355       // L1C0 type
 356       padPlane->SetNrows(12);
 357       padPlane->SetLength(108.0);
 358       padPlane->SetLengthOPad(8.0);
 359       padPlane->SetLengthIPad(9.0);
 360     }
 361     else {
 362       // L1C1 type
 363       padPlane->SetNrows(16);
 364       padPlane->SetLength(122.0);
 365       padPlane->SetLengthOPad(7.5);
 366       padPlane->SetLengthIPad(7.5);
 367     }
 368     padPlane->SetWidth(96.6);
 369     padPlane->SetWidthOPad(0.585);
 370     padPlane->SetWidthIPad(0.665);
 371     padPlane->SetTiltingAngle(kTiltAngle);
 372     break;
 373   case 2:
 374     if (istack == 2) {
 375       // L2C0 type
 376       padPlane->SetNrows(12);
 377       padPlane->SetLength(108.0);
 378       padPlane->SetLengthOPad(8.0);
 379       padPlane->SetLengthIPad(9.0);
 380     }
 381     else {
 382       // L2C1 type
 383       padPlane->SetNrows(16);
 384       padPlane->SetLength(129.0);
 385       padPlane->SetLengthOPad(7.5);
 386       padPlane->SetLengthIPad(8.0);
 387     }
 388     padPlane->SetWidth(101.1);
 389     padPlane->SetWidthOPad(0.705);
 390     padPlane->SetWidthIPad(0.695);
 391     padPlane->SetTiltingAngle(-kTiltAngle);
 392     break;
 393   case 3:
 394     if (istack == 2) {
 395       // L3C0 type
 396       padPlane->SetNrows(12);
 397       padPlane->SetLength(108.0);
 398       padPlane->SetLengthOPad(8.0);
 399       padPlane->SetLengthIPad(9.0);
 400     }
 401     else {
 402       // L3C1 type
 403       padPlane->SetNrows(16);
 404       padPlane->SetLength(136.0);
 405       padPlane->SetLengthOPad(7.5);
 406       padPlane->SetLengthIPad(8.5);
 407     }
 408     padPlane->SetWidth(105.5);
 409     padPlane->SetWidthOPad(0.775);
 410     padPlane->SetWidthIPad(0.725);
 411     padPlane->SetTiltingAngle(kTiltAngle);
 412     break;
 413   case 4:
 414     if (istack == 2) {
 415       // L4C0 type
 416       padPlane->SetNrows(12);
 417       padPlane->SetLength(108.0);
 418       padPlane->SetLengthOPad(8.0);
 419     }
 420     else {
 421       // L4C1 type
 422       padPlane->SetNrows(16);
 423       padPlane->SetLength(143.0);
 424       padPlane->SetLengthOPad(7.5);
 425     }
 426     padPlane->SetWidth(109.9);
 427     padPlane->SetWidthOPad(0.845);
 428     padPlane->SetLengthIPad(9.0);
 429     padPlane->SetWidthIPad(0.755);
 430     padPlane->SetTiltingAngle(-kTiltAngle);
 431     break;
 432   case 5:
 433     if (istack == 2) {
 434       // L5C0 type
 435       padPlane->SetNrows(12);
 436       padPlane->SetLength(108.0);
 437       padPlane->SetLengthOPad(8.0);
 438     }
 439     else {
 440       // L5C1 type
 441       padPlane->SetNrows(16);
 442       padPlane->SetLength(145.0);
 443       padPlane->SetLengthOPad(8.5);
 444     }
 445     padPlane->SetWidth(114.4);
 446     padPlane->SetWidthOPad(0.965);
 447     padPlane->SetLengthIPad(9.0);
 448     padPlane->SetWidthIPad(0.785);
 449     padPlane->SetTiltingAngle(kTiltAngle);
 450     break;
 451   };
 452
 453   //
 454   // The positions of the borders of the pads
 455   //
 456   // Row direction
 457   //
 458   Double_t row = fgkClength[ilayer][istack] / 2.0
 459                - fgkRpadW
 460                - padPlane->GetLengthRim();
 461   for (Int_t ir = 0; ir < padPlane->GetNrows(); ir++) {
 462     padPlane->SetPadRow(ir,row);
 463     row -= padPlane->GetRowSpacing();
 464     if (ir == 0) {
 465       row -= padPlane->GetLengthOPad();
 466     }
 467     else {
 468       row -= padPlane->GetLengthIPad();
 469     }
 470   }
 471   //
 472   // Column direction
 473   //
 474   Double_t col = - fgkCwidth[ilayer] / 2.0
 475                  - fgkCroW
 476                  + padPlane->GetWidthRim();
 477   for (Int_t ic = 0; ic < padPlane->GetNcols(); ic++) {
 478     padPlane->SetPadCol(ic,col);
 479     col += padPlane->GetColSpacing();
 480     if (ic == 0) {
 481       col += padPlane->GetWidthOPad();
 482     }
 483     else {
 484       col += padPlane->GetWidthIPad();
 485     }
 486   }
 487   // Calculate the offset to translate from the local ROC system into
 488   // the local supermodule system, which is used for clusters
 489   Double_t rowTmp = fgkClength[ilayer][0]
 490                   + fgkClength[ilayer][1]
 491                   + fgkClength[ilayer][2] / 2.0;
 492   for (Int_t jstack = 0; jstack < istack; jstack++) {
 493     rowTmp -= fgkClength[ilayer][jstack];
 494   }
 495   padPlane->SetPadRowSMOffset(rowTmp - fgkClength[ilayer][istack]/2.0);
 496
 497   return padPlane;
 498
 499 }
 500
 501 //_____________________________________________________________________________
 502 void AliTRDgeometry::CreateGeometry(Int_t *idtmed)
 503 {
 504   //
 505   // Create the TRD geometry
 506   //
 507   //
 508   // Names of the TRD volumina (xx = detector number):
 509   //
 510   //   Volume (Air) wrapping the readout chamber components
 511   //     UTxx    includes: UAxx, UDxx, UFxx, UUxx
 512   //
 513   //   Lower part of the readout chambers (drift volume + radiator)
 514   //     UAxx    Aluminum frames                (Al)
 515   //
 516   //   Upper part of the readout chambers (readout plane + fee)
 517   //     UDxx    Wacosit frames of amp. region  (Wacosit)
 518   //     UFxx    Aluminum frame of back panel   (Al)
 519   //
 520   //   Services on chambers (cooling, cables, MCMs, DCS boards, ...)
 521   //     UUxx    Volume containing the services (Air)
 522   //
 523   //   Material layers inside sensitive area:
 524   //     Name    Description                     Mat.      Thick.   Dens.    Radl.    X/X_0
 525   //
 526   //     URMYxx  Mylar layers (x2)               Mylar     0.0015   1.39     28.5464  0.005%
 527   //     URCBxx  Carbon layer (x2)               Carbon    0.0055   1.75     24.2824  0.023%
 528   //     URGLxx  Glue on the carbon layers (x2)  Araldite  0.0065   1.12     37.0664  0.018%
 529   //     URRHxx  Rohacell layer (x2)             Rohacell  0.8      0.075    536.005  0.149%
 530   //     URFBxx  Fiber mat layer                 PP        3.186    0.068    649.727  0.490%
 531   //
 532   //     UJxx    Drift region                    Xe/CO2    3.0      0.00495  1792.37  0.167%
 533   //     UKxx    Amplification region            Xe/CO2    0.7      0.00495  1792.37  0.039%
 534   //     UWxx    Wire planes (x2)                Copper    0.00011  8.96     1.43503  0.008%
 535   //
 536   //     UPPDxx  Copper of pad plane             Copper    0.0025   8.96     1.43503  0.174%
 537   //     UPPPxx  PCB of pad plane                G10       0.0356   2.0      14.9013  0.239%
 538   //     UPGLxx  Glue on pad planes              Araldite  0.0923   1.12     37.0664  0.249%
 539   //             + add. glue (ca. 600g)          Araldite  0.0505   1.12     37.0663  0.107%
 540   //     UPCBxx  Carbon fiber mats (x2)          Carbon    0.019    1.75     24.2824  0.078%
 541   //     UPHCxx  Honeycomb structure             Aramide   2.0299   0.032    1198.84  0.169%
 542   //     UPPCxx  PCB of readout board            G10       0.0486   2.0      14.9013  0.326%
 543   //     UPRDxx  Copper of readout board         Copper    0.0057   8.96     1.43503  0.404%
 544   //     UPELxx  Electronics + cables            Copper    0.0029   8.96     1.43503  0.202%
 545   //
 546
 547   const Int_t kNparTrd = 4;
 548   const Int_t kNparCha = 3;
 549
 550   Float_t xpos;
 551   Float_t ypos;
 552   Float_t zpos;
 553
 554   Float_t parTrd[kNparTrd];
 555   Float_t parCha[kNparCha];
 556
 557   Char_t  cTagV[100];
 558   Char_t  cTagM[100];
 559
 560   // There are three TRD volumes for the supermodules in order to accomodate
 561   // the different arrangements in front of PHOS
 562   // UTR1: Default supermodule
 563   // UTR2: Supermodule in front of PHOS with double carbon cover
 564   // UTR3: As UTR2, but w/o middle stack
 565   //
 566   // The mother volume for one sector (Air), full length in z-direction
 567   // Provides material for side plates of super module
 568   parTrd[0] = fgkSwidth1/2.0;
 569   parTrd[1] = fgkSwidth2/2.0;
 570   parTrd[2] = fgkSlength/2.0;
 571   parTrd[3] = fgkSheight/2.0;
 572   gMC->Gsvolu("UTR1","TRD1",idtmed[1302-1],parTrd,kNparTrd);
 573   gMC->Gsvolu("UTR2","TRD1",idtmed[1302-1],parTrd,kNparTrd);
 574   gMC->Gsvolu("UTR3","TRD1",idtmed[1302-1],parTrd,kNparTrd);
 575   // The outer aluminum plates of the super module (Al)
 576   parTrd[0] = fgkSwidth1/2.0;
 577   parTrd[1] = fgkSwidth2/2.0;
 578   parTrd[2] = fgkSlength/2.0;
 579   parTrd[3] = fgkSheight/2.0;
 580   gMC->Gsvolu("UTS1","TRD1",idtmed[1301-1],parTrd,kNparTrd);
 581   gMC->Gsvolu("UTS2","TRD1",idtmed[1301-1],parTrd,kNparTrd);
 582   gMC->Gsvolu("UTS3","TRD1",idtmed[1301-1],parTrd,kNparTrd);
 583   // The inner part of the TRD mother volume for one sector (Air),
 584   // full length in z-direction
 585   parTrd[0] = fgkSwidth1/2.0 - fgkSMpltT;
 586   parTrd[1] = fgkSwidth2/2.0 - fgkSMpltT;
 587   parTrd[2] = fgkSlength/2.0;
 588   parTrd[3] = fgkSheight/2.0 - fgkSMpltT;
 589   gMC->Gsvolu("UTI1","TRD1",idtmed[1302-1],parTrd,kNparTrd);
 590   gMC->Gsvolu("UTI2","TRD1",idtmed[1302-1],parTrd,kNparTrd);
 591   gMC->Gsvolu("UTI3","TRD1",idtmed[1302-1],parTrd,kNparTrd);
 592
 593   // The inner part of the TRD mother volume for services in front
 594   // of the supermodules  (Air),
 595   parTrd[0] = fgkSwidth1/2.0;
 596   parTrd[1] = fgkSwidth2/2.0;
 597   parTrd[2] = fgkFlength/2.0;
 598   parTrd[3] = fgkSheight/2.0;
 599   gMC->Gsvolu("UTF1","TRD1",idtmed[1302-1],parTrd,kNparTrd);
 600   gMC->Gsvolu("UTF2","TRD1",idtmed[1302-1],parTrd,kNparTrd);
 601
 602   for (Int_t istack = 0; istack < kNstack; istack++) {
 603     for (Int_t ilayer = 0; ilayer < kNlayer; ilayer++) {
 604
 605       Int_t iDet = GetDetectorSec(ilayer,istack);
 606
 607       // The lower part of the readout chambers (drift volume + radiator)
 608       // The aluminum frames
 609       sprintf(cTagV,"UA%02d",iDet);
 610       parCha[0] = fgkCwidth[ilayer]/2.0;
 611       parCha[1] = fgkClength[ilayer][istack]/2.0 - fgkHspace/2.0;
 612       parCha[2] = fgkCraH/2.0 + fgkCdrH/2.0;
 613       gMC->Gsvolu(cTagV,"BOX ",idtmed[1301-1],parCha,kNparCha);
 614       // The additional aluminum on the frames
 615       // This part has not the correct shape but is just supposed to
 616       // represent the missing material. The correct form of the L-shaped
 617       // profile would not fit into the alignable volume.
 618       sprintf(cTagV,"UZ%02d",iDet);
 619       parCha[0] = fgkCalWmod/2.0;
 620       parCha[1] = fgkClength[ilayer][istack]/2.0 - fgkHspace/2.0;
 621       parCha[2] = fgkCalHmod/2.0;
 622       gMC->Gsvolu(cTagV,"BOX ",idtmed[1301-1],parCha,kNparCha);
 623       // The additional Wacosit on the frames
 624       sprintf(cTagV,"UP%02d",iDet);
 625       parCha[0] = fgkCwsW/2.0;
 626       parCha[1] = fgkClength[ilayer][istack]/2.0 - fgkHspace/2.0;
 627       parCha[2] = fgkCwsH/2.0;
 628       gMC->Gsvolu(cTagV,"BOX ",idtmed[1307-1],parCha,kNparCha);
 629       // The Wacosit frames
 630       sprintf(cTagV,"UB%02d",iDet);
 631       parCha[0] = fgkCwidth[ilayer]/2.0 - fgkCalT;
 632       parCha[1] = -1.0;
 633       parCha[2] = -1.0;
 634       gMC->Gsvolu(cTagV,"BOX ",idtmed[1307-1],parCha,kNparCha);
 635       // The glue around the radiator
 636       sprintf(cTagV,"UX%02d",iDet);
 637       parCha[0] = fgkCwidth[ilayer]/2.0 - fgkCalT - fgkCclsT;
 638       parCha[1] = fgkClength[ilayer][istack]/2.0 - fgkHspace/2.0 - fgkCclfT;
 639       parCha[2] = fgkCraH/2.0;
 640       gMC->Gsvolu(cTagV,"BOX ",idtmed[1311-1],parCha,kNparCha);
 641       // The inner part of radiator (air)
 642       sprintf(cTagV,"UC%02d",iDet);
 643       parCha[0] = fgkCwidth[ilayer]/2.0 - fgkCalT - fgkCclsT - fgkCglT;
 644       parCha[1] = fgkClength[ilayer][istack]/2.0 - fgkHspace/2.0 - fgkCclfT - fgkCglT;
 645       parCha[2] = -1.0;
 646       gMC->Gsvolu(cTagV,"BOX ",idtmed[1302-1],parCha,kNparCha);
 647
 648       // The upper part of the readout chambers (amplification volume)
 649       // The Wacosit frames
 650       sprintf(cTagV,"UD%02d",iDet);
 651       parCha[0] = fgkCwidth[ilayer]/2.0 + fgkCroW;
 652       parCha[1] = fgkClength[ilayer][istack]/2.0 - fgkHspace/2.0;
 653       parCha[2] = fgkCamH/2.0;
 654       gMC->Gsvolu(cTagV,"BOX ",idtmed[1307-1],parCha,kNparCha);
 655       // The inner part of the Wacosit frame (air)
 656       sprintf(cTagV,"UE%02d",iDet);
 657       parCha[0] = fgkCwidth[ilayer]/2.0 + fgkCroW - fgkCcuTb;
 658       parCha[1] = fgkClength[ilayer][istack]/2.0 - fgkHspace/2.0 - fgkCcuTa;
 659       parCha[2] = -1.;
 660       gMC->Gsvolu(cTagV,"BOX ",idtmed[1302-1],parCha,kNparCha);
 661
 662       // The back panel, including pad plane and readout boards
 663       // The aluminum frames
 664       sprintf(cTagV,"UF%02d",iDet);
 665       parCha[0] = fgkCwidth[ilayer]/2.0 + fgkCroW;
 666       parCha[1] = fgkClength[ilayer][istack]/2.0 - fgkHspace/2.0;
 667       parCha[2] = fgkCroH/2.0;
 668       gMC->Gsvolu(cTagV,"BOX ",idtmed[1301-1],parCha,kNparCha);
 669       // The inner part of the aluminum frames
 670       sprintf(cTagV,"UG%02d",iDet);
 671       parCha[0] = fgkCwidth[ilayer]/2.0 + fgkCroW - fgkCauT;
 672       parCha[1] = fgkClength[ilayer][istack]/2.0 - fgkHspace/2.0 - fgkCauT;
 673       parCha[2] = -1.0;
 674       gMC->Gsvolu(cTagV,"BOX ",idtmed[1302-1],parCha,kNparCha);
 675
 676       //
 677       // The material layers inside the chambers
 678       //
 679
 680       // Mylar layer (radiator)
 681       parCha[0] = -1.0;
 682       parCha[1] = -1.0;
 683       parCha[2] = fgkRMyThick/2.0;
 684       sprintf(cTagV,"URMY%02d",iDet);
 685       gMC->Gsvolu(cTagV,"BOX ",idtmed[1327-1],parCha,kNparCha);
 686       // Carbon layer (radiator)
 687       parCha[0] = -1.0;
 688       parCha[1] = -1.0;
 689       parCha[2] = fgkRCbThick/2.0;
 690       sprintf(cTagV,"URCB%02d",iDet);
 691       gMC->Gsvolu(cTagV,"BOX ",idtmed[1326-1],parCha,kNparCha);
 692       // Araldite layer (radiator)
 693       parCha[0] = -1.0;
 694       parCha[1] = -1.0;
 695       parCha[2] = fgkRGlThick/2.0;
 696       sprintf(cTagV,"URGL%02d",iDet);
 697       gMC->Gsvolu(cTagV,"BOX ",idtmed[1311-1],parCha,kNparCha);
 698       // Rohacell layer (radiator)
 699       parCha[0] = -1.0;
 700       parCha[1] = -1.0;
 701       parCha[2] = fgkRRhThick/2.0;
 702       sprintf(cTagV,"URRH%02d",iDet);
 703       gMC->Gsvolu(cTagV,"BOX ",idtmed[1315-1],parCha,kNparCha);
 704       // Fiber layer (radiator)
 705       parCha[0] = -1.0;
 706       parCha[1] = -1.0;
 707       parCha[2] = fgkRFbThick/2.0;
 708       sprintf(cTagV,"URFB%02d",iDet);
 709       gMC->Gsvolu(cTagV,"BOX ",idtmed[1328-1],parCha,kNparCha);
 710
 711       // Xe/Isobutane layer (drift volume)
 712       parCha[0] = fgkCwidth[ilayer]/2.0 - fgkCalT - fgkCclsT;
 713       parCha[1] = fgkClength[ilayer][istack]/2.0 - fgkHspace/2.0 - fgkCclfT;
 714       parCha[2] = fgkDrThick/2.0;
 715       sprintf(cTagV,"UJ%02d",iDet);
 716       gMC->Gsvolu(cTagV,"BOX ",idtmed[1309-1],parCha,kNparCha);
 717
 718       // Xe/Isobutane layer (amplification volume)
 719       parCha[0] = -1.0;
 720       parCha[1] = -1.0;
 721       parCha[2] = fgkAmThick/2.0;
 722       sprintf(cTagV,"UK%02d",iDet);
 723       gMC->Gsvolu(cTagV,"BOX ",idtmed[1309-1],parCha,kNparCha);
 724       // Cu layer (wire plane)
 725       parCha[0] = -1.0;
 726       parCha[1] = -1.0;
 727       parCha[2] = fgkWrThick/2.0;
 728       sprintf(cTagV,"UW%02d",iDet);
 729       gMC->Gsvolu(cTagV,"BOX ",idtmed[1303-1],parCha,kNparCha);
 730
 731       // Cu layer (pad plane)
 732       parCha[0] = -1.0;
 733       parCha[1] = -1.0;
 734       parCha[2] = fgkPPdThick/2.0;
 735       sprintf(cTagV,"UPPD%02d",iDet);
 736       gMC->Gsvolu(cTagV,"BOX ",idtmed[1305-1],parCha,kNparCha);
 737       // G10 layer (pad plane)
 738       parCha[0] = -1.0;
 739       parCha[1] = -1.0;
 740       parCha[2] = fgkPPpThick/2.0;
 741       sprintf(cTagV,"UPPP%02d",iDet);
 742       gMC->Gsvolu(cTagV,"BOX ",idtmed[1313-1],parCha,kNparCha);
 743       // Araldite layer (glue)
 744       parCha[0] = -1.0;
 745       parCha[1] = -1.0;
 746       parCha[2] = fgkPGlThick/2.0;
 747       sprintf(cTagV,"UPGL%02d",iDet);
 748       gMC->Gsvolu(cTagV,"BOX ",idtmed[1311-1],parCha,kNparCha);
 749       // Carbon layer (carbon fiber mats)
 750       parCha[0] = -1.0;
 751       parCha[1] = -1.0;
 752       parCha[2] = fgkPCbThick/2.0;
 753       sprintf(cTagV,"UPCB%02d",iDet);
 754       gMC->Gsvolu(cTagV,"BOX ",idtmed[1326-1],parCha,kNparCha);
 755       // Aramide layer (honeycomb)
 756       parCha[0] = -1.0;
 757       parCha[1] = -1.0;
 758       parCha[2] = fgkPHcThick/2.0;
 759       sprintf(cTagV,"UPHC%02d",iDet);
 760       gMC->Gsvolu(cTagV,"BOX ",idtmed[1310-1],parCha,kNparCha);
 761       // G10 layer (PCB readout board)
 762       parCha[0] = -1.0;
 763       parCha[1] = -1.0;
 764       parCha[2] = fgkPPcThick/2;
 765       sprintf(cTagV,"UPPC%02d",iDet);
 766       gMC->Gsvolu(cTagV,"BOX ",idtmed[1313-1],parCha,kNparCha);
 767       // Cu layer (traces in readout board)
 768       parCha[0] = -1.0;
 769       parCha[1] = -1.0;
 770       parCha[2] = fgkPRbThick/2.0;
 771       sprintf(cTagV,"UPRB%02d",iDet);
 772       gMC->Gsvolu(cTagV,"BOX ",idtmed[1306-1],parCha,kNparCha);
 773       // Cu layer (other material on in readout board, incl. screws)
 774       parCha[0] = -1.0;
 775       parCha[1] = -1.0;
 776       parCha[2] = fgkPElThick/2.0;
 777       sprintf(cTagV,"UPEL%02d",iDet);
 778       gMC->Gsvolu(cTagV,"BOX ",idtmed[1304-1],parCha,kNparCha);
 779
 780       //
 781       // Position the layers in the chambers
 782       //
 783       xpos = 0.0;
 784       ypos = 0.0;
 785
 786       // Lower part
 787       // Mylar layers (radiator)
 788       zpos =  fgkRMyThick/2.0 - fgkCraH/2.0;
 789       sprintf(cTagV,"URMY%02d",iDet);
 790       sprintf(cTagM,"UC%02d",iDet);
 791       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 792       zpos = -fgkRMyThick/2.0 + fgkCraH/2.0;
 793       sprintf(cTagV,"URMY%02d",iDet);
 794       sprintf(cTagM,"UC%02d",iDet);
 795       gMC->Gspos(cTagV,2,cTagM,xpos,ypos,zpos,0,"ONLY");
 796       // Carbon layers (radiator)
 797       zpos =  fgkRCbThick/2.0 + fgkRMyThick - fgkCraH/2.0;
 798       sprintf(cTagV,"URCB%02d",iDet);
 799       sprintf(cTagM,"UC%02d",iDet);
 800       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 801       zpos = -fgkRCbThick/2.0 - fgkRMyThick + fgkCraH/2.0;
 802       sprintf(cTagV,"URCB%02d",iDet);
 803       sprintf(cTagM,"UC%02d",iDet);
 804       gMC->Gspos(cTagV,2,cTagM,xpos,ypos,zpos,0,"ONLY");
 805       // Carbon layers (radiator)
 806       zpos =  fgkRGlThick/2.0 + fgkRCbThick + fgkRMyThick - fgkCraH/2.0;
 807       sprintf(cTagV,"URGL%02d",iDet);
 808       sprintf(cTagM,"UC%02d",iDet);
 809       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 810       zpos = -fgkRGlThick/2.0 - fgkRCbThick - fgkRMyThick + fgkCraH/2.0;
 811       sprintf(cTagV,"URGL%02d",iDet);
 812       sprintf(cTagM,"UC%02d",iDet);
 813       gMC->Gspos(cTagV,2,cTagM,xpos,ypos,zpos,0,"ONLY");
 814       // Rohacell layers (radiator)
 815       zpos =  fgkRRhThick/2.0 + fgkRGlThick + fgkRCbThick + fgkRMyThick - fgkCraH/2.0;
 816       sprintf(cTagV,"URRH%02d",iDet);
 817       sprintf(cTagM,"UC%02d",iDet);
 818       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 819       zpos = -fgkRRhThick/2.0 - fgkRGlThick - fgkRCbThick - fgkRMyThick + fgkCraH/2.0;
 820       sprintf(cTagV,"URRH%02d",iDet);
 821       sprintf(cTagM,"UC%02d",iDet);
 822       gMC->Gspos(cTagV,2,cTagM,xpos,ypos,zpos,0,"ONLY");
 823       // Fiber layers (radiator)
 824       zpos =  0.0;
 825       sprintf(cTagV,"URFB%02d",iDet);
 826       sprintf(cTagM,"UC%02d",iDet);
 827       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 828
 829       // Xe/Isobutane layer (drift volume)
 830       zpos = fgkDrZpos;
 831       sprintf(cTagV,"UJ%02d",iDet);
 832       sprintf(cTagM,"UB%02d",iDet);
 833       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 834
 835       // Upper part
 836       // Xe/Isobutane layer (amplification volume)
 837       zpos = fgkAmZpos;
 838       sprintf(cTagV,"UK%02d",iDet);
 839       sprintf(cTagM,"UE%02d",iDet);
 840       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 841       // Cu layer (wire planes inside amplification volume)
 842       zpos = fgkWrZposA;
 843       sprintf(cTagV,"UW%02d",iDet);
 844       sprintf(cTagM,"UK%02d",iDet);
 845       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 846       zpos = fgkWrZposB;
 847       sprintf(cTagV,"UW%02d",iDet);
 848       sprintf(cTagM,"UK%02d",iDet);
 849       gMC->Gspos(cTagV,2,cTagM,xpos,ypos,zpos,0,"ONLY");
 850
 851       // Back panel + pad plane + readout part
 852       // Cu layer (pad plane)
 853       zpos =  fgkPPdThick/2.0 - fgkCroH/2.0;
 854       sprintf(cTagV,"UPPD%02d",iDet);
 855       sprintf(cTagM,"UG%02d",iDet);
 856       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 857       // G10  layer (pad plane)
 858       zpos =  fgkPPpThick/2.0 + fgkPPdThick - fgkCroH/2.0;
 859       sprintf(cTagV,"UPPP%02d",iDet);
 860       sprintf(cTagM,"UG%02d",iDet);
 861       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 862       // Araldite layer (glue)
 863       zpos =  fgkPGlThick/2.0 + fgkPPpThick + fgkPPdThick - fgkCroH/2.0;
 864       sprintf(cTagV,"UPGL%02d",iDet);
 865       sprintf(cTagM,"UG%02d",iDet);
 866       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 867       // Carbon layers (carbon fiber mats)
 868       zpos =  fgkPCbThick/2.0 + fgkPGlThick + fgkPPpThick + fgkPPdThick - fgkCroH/2.0;
 869       sprintf(cTagV,"UPCB%02d",iDet);
 870       sprintf(cTagM,"UG%02d",iDet);
 871       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 872       zpos = -fgkPCbThick/2.0 - fgkPPcThick - fgkPRbThick - fgkPElThick + fgkCroH/2.0;
 873       sprintf(cTagV,"UPCB%02d",iDet);
 874       sprintf(cTagM,"UG%02d",iDet);
 875       gMC->Gspos(cTagV,2,cTagM,xpos,ypos,zpos,0,"ONLY");
 876       // Aramide layer (honeycomb)
 877       zpos =  fgkPHcThick/2.0 + fgkPCbThick + fgkPGlThick + fgkPPpThick + fgkPPdThick - fgkCroH/2.0;
 878       sprintf(cTagV,"UPHC%02d",iDet);
 879       sprintf(cTagM,"UG%02d",iDet);
 880       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 881       // G10 layer (PCB readout board)
 882       zpos = -fgkPPcThick/2.0 - fgkPRbThick - fgkPElThick + fgkCroH/2.0;
 883       sprintf(cTagV,"UPPC%02d",iDet);
 884       sprintf(cTagM,"UG%02d",iDet);
 885       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 886       // Cu layer (traces in readout board)
 887       zpos = -fgkPRbThick/2.0 - fgkPElThick + fgkCroH/2.0;
 888       sprintf(cTagV,"UPRB%02d",iDet);
 889       sprintf(cTagM,"UG%02d",iDet);
 890       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 891       // Cu layer (other materials on readout board, incl. screws)
 892       zpos = -fgkPElThick/2.0 + fgkCroH/2.0;
 893       sprintf(cTagV,"UPEL%02d",iDet);
 894       sprintf(cTagM,"UG%02d",iDet);
 895       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 896
 897       // Position the inner volumes of the chambers in the frames
 898       xpos = 0.0;
 899       ypos = 0.0;
 900
 901       // The inner part of the radiator (air)
 902       zpos = 0.0;
 903       sprintf(cTagV,"UC%02d",iDet);
 904       sprintf(cTagM,"UX%02d",iDet);
 905       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 906       // The glue around the radiator
 907       zpos = fgkCraH/2.0 - fgkCdrH/2.0 - fgkCraH/2.0;
 908       sprintf(cTagV,"UX%02d",iDet);
 909       sprintf(cTagM,"UB%02d",iDet);
 910       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 911       // The lower Wacosit frame inside the aluminum frame
 912       zpos = 0.0;
 913       sprintf(cTagV,"UB%02d",iDet);
 914       sprintf(cTagM,"UA%02d",iDet);
 915       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 916
 917       // The inside of the upper Wacosit frame
 918       zpos = 0.0;
 919       sprintf(cTagV,"UE%02d",iDet);
 920       sprintf(cTagM,"UD%02d",iDet);
 921       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 922
 923       // The inside of the upper aluminum frame
 924       zpos = 0.0;
 925       sprintf(cTagV,"UG%02d",iDet);
 926       sprintf(cTagM,"UF%02d",iDet);
 927       gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
 928
 929     }
 930   }
 931
 932   // Create the volumes of the super module frame
 933   CreateFrame(idtmed);
 934
 935   // Create the volumes of the services
 936   CreateServices(idtmed);
 937
 938   for (Int_t istack = 0; istack < kNstack; istack++) {
 939     for (Int_t ilayer = 0; ilayer < kNlayer; ilayer++) {
 940       AssembleChamber(ilayer,istack);
 941     }
 942   }
 943
 944   xpos = 0.0;
 945   ypos = 0.0;
 946   zpos = 0.0;
 947   gMC->Gspos("UTI1",1,"UTS1",xpos,ypos,zpos,0,"ONLY");
 948   gMC->Gspos("UTI2",1,"UTS2",xpos,ypos,zpos,0,"ONLY");
 949   gMC->Gspos("UTI3",1,"UTS3",xpos,ypos,zpos,0,"ONLY");
 950
 951   xpos = 0.0;
 952   ypos = 0.0;
 953   zpos = 0.0;
 954   gMC->Gspos("UTS1",1,"UTR1",xpos,ypos,zpos,0,"ONLY");
 955   gMC->Gspos("UTS2",1,"UTR2",xpos,ypos,zpos,0,"ONLY");
 956   gMC->Gspos("UTS3",1,"UTR3",xpos,ypos,zpos,0,"ONLY");
 957
 958   // Put the TRD volumes into the space frame mother volumes
 959   // if enabled via status flag
 960   xpos = 0.0;
 961   ypos = 0.0;
 962   zpos = 0.0;
 963   for (Int_t isector = 0; isector < kNsector; isector++) {
 964     if (GetSMstatus(isector)) {
 965       sprintf(cTagV,"BTRD%d",isector);
 966       switch (isector) {
 967       case 13:
 968       case 14:
 969       case 15:
 970         // Double carbon, w/o middle stack
 971         gMC->Gspos("UTR3",1,cTagV,xpos,ypos,zpos,0,"ONLY");
 972         break;
 973       case 11:
 974       case 12:
 975         // Double carbon, all stacks
 976         gMC->Gspos("UTR2",1,cTagV,xpos,ypos,zpos,0,"ONLY");
 977         break;
 978       default:
 979         // Standard supermodule
 980         gMC->Gspos("UTR1",1,cTagV,xpos,ypos,zpos,0,"ONLY");
 981       };
 982     }
 983   }
 984
 985   // Put the TRD volumes into the space frame mother volumes
 986   // if enabled via status flag
 987   xpos = 0.0;
 988   ypos = 0.5*fgkSlength + 0.5*fgkFlength;
 989   zpos = 0.0;
 990   for (Int_t isector = 0; isector < kNsector; isector++) {
 991     if (GetSMstatus(isector)) {
 992       sprintf(cTagV,"BTRD%d",isector);
 993       gMC->Gspos("UTF1",1,cTagV,xpos, ypos,zpos,0,"ONLY");
 994       gMC->Gspos("UTF2",1,cTagV,xpos,-ypos,zpos,0,"ONLY");
 995     }
 996   }
 997
 998 }
 999
1000 //_____________________________________________________________________________
1001 void AliTRDgeometry::CreateFrame(Int_t *idtmed)
1002 {
1003   //
1004   // Create the geometry of the frame of the supermodule
1005   //
1006   // Names of the TRD services volumina
1007   //
1008   //        USRL    Support rails for the chambers (Al)
1009   //        USxx    Support cross bars between the chambers (Al)
1010   //        USHx    Horizontal connection between the cross bars (Al)
1011   //        USLx    Long corner ledges (Al)
1012   //
1013
1014   Int_t   ilayer = 0;
1015
1016   Float_t xpos  = 0.0;
1017   Float_t ypos  = 0.0;
1018   Float_t zpos  = 0.0;
1019
1020   Char_t  cTagV[100];
1021   Char_t  cTagM[100];
1022
1023   const Int_t kNparTRD = 4;
1024   Float_t parTRD[kNparTRD];
1025   const Int_t kNparBOX = 3;
1026   Float_t parBOX[kNparBOX];
1027   const Int_t kNparTRP = 11;
1028   Float_t parTRP[kNparTRP];
1029
1030   // The rotation matrices
1031   const Int_t kNmatrix = 7;
1032   Int_t   matrix[kNmatrix];
1033   gMC->Matrix(matrix[0], 100.0,   0.0,  90.0,  90.0,  10.0,   0.0);
1034   gMC->Matrix(matrix[1],  80.0,   0.0,  90.0,  90.0,  10.0, 180.0);
1035   gMC->Matrix(matrix[2],  90.0,   0.0,   0.0,   0.0,  90.0,  90.0);
1036   gMC->Matrix(matrix[3],  90.0, 180.0,   0.0, 180.0,  90.0,  90.0);
1037   gMC->Matrix(matrix[4], 170.0,   0.0,  80.0,   0.0,  90.0,  90.0);
1038   gMC->Matrix(matrix[5], 170.0, 180.0,  80.0, 180.0,  90.0,  90.0);
1039   gMC->Matrix(matrix[6], 180.0, 180.0,  90.0, 180.0,  90.0,  90.0);
1040
1041   //
1042   // The carbon inserts in the top/bottom aluminum plates
1043   //
1044
1045   const Int_t kNparCrb = 3;
1046   Float_t parCrb[kNparCrb];
1047   parCrb[0] = 0.0;
1048   parCrb[1] = 0.0;
1049   parCrb[2] = 0.0;
1050   gMC->Gsvolu("USCR","BOX ",idtmed[1326-1],parCrb,0);
1051   // Bottom 1 (all sectors)
1052   parCrb[0] =  77.49/2.0;
1053   parCrb[1] = 104.60/2.0;
1054   parCrb[2] = fgkSMpltT/2.0;
1055   xpos      =   0.0;
1056   ypos      =   0.0;
1057   zpos      = fgkSMpltT/2.0 - fgkSheight/2.0;
1058   gMC->Gsposp("USCR", 1,"UTS1", xpos, ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1059   gMC->Gsposp("USCR", 2,"UTS2", xpos, ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1060   gMC->Gsposp("USCR", 3,"UTS3", xpos, ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1061   // Bottom 2 (all sectors)
1062   parCrb[0] =  77.49/2.0;
1063   parCrb[1] =  55.80/2.0;
1064   parCrb[2] = fgkSMpltT/2.0;
1065   xpos      =   0.0;
1066   ypos      =  85.6;
1067   zpos      = fgkSMpltT/2.0 - fgkSheight/2.0;
1068   gMC->Gsposp("USCR", 4,"UTS1", xpos, ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1069   gMC->Gsposp("USCR", 5,"UTS2", xpos, ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1070   gMC->Gsposp("USCR", 6,"UTS3", xpos, ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1071   gMC->Gsposp("USCR", 7,"UTS1", xpos,-ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1072   gMC->Gsposp("USCR", 8,"UTS2", xpos,-ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1073   gMC->Gsposp("USCR", 9,"UTS3", xpos,-ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1074   // Bottom 3 (all sectors)
1075   parCrb[0] =  77.49/2.0;
1076   parCrb[1] =  56.00/2.0;
1077   parCrb[2] = fgkSMpltT/2.0;
1078   xpos      =   0.0;
1079   ypos      = 148.5;
1080   zpos      = fgkSMpltT/2.0 - fgkSheight/2.0;
1081   gMC->Gsposp("USCR",10,"UTS1", xpos, ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1082   gMC->Gsposp("USCR",11,"UTS2", xpos, ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1083   gMC->Gsposp("USCR",12,"UTS3", xpos, ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1084   gMC->Gsposp("USCR",13,"UTS1", xpos,-ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1085   gMC->Gsposp("USCR",14,"UTS2", xpos,-ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1086   gMC->Gsposp("USCR",15,"UTS3", xpos,-ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1087   // Bottom 4 (all sectors)
1088   parCrb[0] =  77.49/2.0;
1089   parCrb[1] = 118.00/2.0;
1090   parCrb[2] = fgkSMpltT/2.0;
1091   xpos      =   0.0;
1092   ypos      = 240.5;
1093   zpos      = fgkSMpltT/2.0 - fgkSheight/2.0;
1094   gMC->Gsposp("USCR",16,"UTS1", xpos, ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1095   gMC->Gsposp("USCR",17,"UTS2", xpos, ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1096   gMC->Gsposp("USCR",18,"UTS3", xpos, ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1097   gMC->Gsposp("USCR",19,"UTS1", xpos,-ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1098   gMC->Gsposp("USCR",20,"UTS2", xpos,-ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1099   gMC->Gsposp("USCR",21,"UTS3", xpos,-ypos, zpos,0,"ONLY",parCrb,kNparCrb);
1100   // Top 1 (only in front of PHOS)
1101   parCrb[0] = 111.48/2.0;
1102   parCrb[1] = 105.00/2.0;
1103   parCrb[2] = fgkSMpltT/2.0;
1104   xpos      =   0.0;
1105   ypos      =   0.0;
1106   zpos      = fgkSMpltT/2.0 - fgkSheight/2.0;
1107   gMC->Gsposp("USCR",22,"UTS2", xpos, ypos,-zpos,0,"ONLY",parCrb,kNparCrb);
1108   gMC->Gsposp("USCR",23,"UTS3", xpos, ypos,-zpos,0,"ONLY",parCrb,kNparCrb);
1109   // Top 2 (only in front of PHOS)
1110   parCrb[0] = 111.48/2.0;
1111   parCrb[1] =  56.00/2.0;
1112   parCrb[2] = fgkSMpltT/2.0;
1113   xpos      =   0.0;
1114   ypos      =  85.5;
1115   zpos      = fgkSMpltT/2.0 - fgkSheight/2.0;
1116   gMC->Gsposp("USCR",24,"UTS2", xpos, ypos,-zpos,0,"ONLY",parCrb,kNparCrb);
1117   gMC->Gsposp("USCR",25,"UTS3", xpos, ypos,-zpos,0,"ONLY",parCrb,kNparCrb);
1118   gMC->Gsposp("USCR",26,"UTS2", xpos,-ypos,-zpos,0,"ONLY",parCrb,kNparCrb);
1119   gMC->Gsposp("USCR",27,"UTS3", xpos,-ypos,-zpos,0,"ONLY",parCrb,kNparCrb);
1120
1121   //
1122   // The chamber support rails
1123   //
1124
1125   const Float_t kSRLhgt  = 2.00;
1126   const Float_t kSRLwidA = 2.3;
1127   const Float_t kSRLwidB = 1.947;
1128   const Float_t kSRLdst  = 1.135;
1129   const Int_t   kNparSRL = 11;
1130   Float_t parSRL[kNparSRL];
1131   // Trapezoidal shape
1132   parSRL[ 0] = fgkSlength/2.0;
1133   parSRL[ 1] = 0.0;
1134   parSRL[ 2] = 0.0;
1135   parSRL[ 3] = kSRLhgt  /2.0;
1136   parSRL[ 4] = kSRLwidB /2.0;
1137   parSRL[ 5] = kSRLwidA /2.0;
1138   parSRL[ 6] = 5.0;
1139   parSRL[ 7] = kSRLhgt  /2.0;
1140   parSRL[ 8] = kSRLwidB /2.0;
1141   parSRL[ 9] = kSRLwidA /2.0;
1142   parSRL[10] = 5.0;
1143   gMC->Gsvolu("USRL","TRAP",idtmed[1301-1],parSRL,kNparSRL);
1144
1145   xpos  = 0.0;
1146   ypos  = 0.0;
1147   zpos  = 0.0;
1148   for (ilayer = 1; ilayer < kNlayer; ilayer++) {
1149     xpos  = fgkCwidth[ilayer]/2.0 + kSRLwidA/2.0 + kSRLdst;
1150     ypos  = 0.0;
1151     zpos  = fgkVrocsm + fgkSMpltT - fgkCalZpos - fgkSheight/2.0
1152           + fgkCraH + fgkCdrH - fgkCalH - kSRLhgt/2.0
1153           + ilayer * (fgkCH + fgkVspace);
1154     gMC->Gspos("USRL",ilayer+1          ,"UTI1", xpos,ypos,zpos,matrix[2],"ONLY");
1155     gMC->Gspos("USRL",ilayer+1+  kNlayer,"UTI1",-xpos,ypos,zpos,matrix[3],"ONLY");
1156     gMC->Gspos("USRL",ilayer+1+2*kNlayer,"UTI2", xpos,ypos,zpos,matrix[2],"ONLY");
1157     gMC->Gspos("USRL",ilayer+1+3*kNlayer,"UTI2",-xpos,ypos,zpos,matrix[3],"ONLY");
1158     gMC->Gspos("USRL",ilayer+1+4*kNlayer,"UTI3", xpos,ypos,zpos,matrix[2],"ONLY");
1159     gMC->Gspos("USRL",ilayer+1+5*kNlayer,"UTI3",-xpos,ypos,zpos,matrix[3],"ONLY");
1160   }
1161
1162   //
1163   // The cross bars between the chambers
1164   //
1165
1166   const Float_t kSCBwid  = 1.0;
1167   const Float_t kSCBthk  = 2.0;
1168   const Float_t kSCHhgt  = 0.3;
1169
1170   const Int_t   kNparSCB = 3;
1171   Float_t parSCB[kNparSCB];
1172   parSCB[1] = kSCBwid/2.0;
1173   parSCB[2] = fgkCH  /2.0 + fgkVspace/2.0 - kSCHhgt;
1174
1175   const Int_t   kNparSCI = 3;
1176   Float_t parSCI[kNparSCI];
1177   parSCI[1] = -1;
1178
1179   xpos  = 0.0;
1180   ypos  = 0.0;
1181   zpos  = 0.0;
1182   for (ilayer = 0; ilayer < kNlayer; ilayer++) {
1183
1184     // The aluminum of the cross bars
1185     parSCB[0] = fgkCwidth[ilayer]/2.0 + kSRLdst/2.0;
1186     sprintf(cTagV,"USF%01d",ilayer);
1187     gMC->Gsvolu(cTagV,"BOX ",idtmed[1301-1],parSCB,kNparSCB);
1188
1189     // The empty regions in the cross bars
1190     Float_t thkSCB = kSCBthk;
1191     if (ilayer < 2) {
1192       thkSCB *= 1.5;
1193     }
1194     parSCI[2] = parSCB[2] - thkSCB;
1195     parSCI[0] = parSCB[0]/4.0 - kSCBthk;
1196     sprintf(cTagV,"USI%01d",ilayer);
1197     gMC->Gsvolu(cTagV,"BOX ",idtmed[1302-1],parSCI,kNparSCI);
1198
1199     sprintf(cTagV,"USI%01d",ilayer);
1200     sprintf(cTagM,"USF%01d",ilayer);
1201     ypos  = 0.0;
1202     zpos  = 0.0;
1203     xpos  =   parSCI[0] + thkSCB/2.0;
1204     gMC->Gspos(cTagV,1,cTagM,xpos,ypos,zpos,0,"ONLY");
1205     xpos  = - parSCI[0] - thkSCB/2.0;
1206     gMC->Gspos(cTagV,2,cTagM,xpos,ypos,zpos,0,"ONLY");
1207     xpos  =   3.0 * parSCI[0] + 1.5 * thkSCB;
1208     gMC->Gspos(cTagV,3,cTagM,xpos,ypos,zpos,0,"ONLY");
1209     xpos  = - 3.0 * parSCI[0] - 1.5 * thkSCB;
1210     gMC->Gspos(cTagV,4,cTagM,xpos,ypos,zpos,0,"ONLY");
1211
1212     sprintf(cTagV,"USF%01d",ilayer);
1213     xpos  = 0.0;
1214     zpos  = fgkVrocsm + fgkSMpltT + parSCB[2] - fgkSheight/2.0
1215           + ilayer * (fgkCH + fgkVspace);
1216
1217     ypos  =   fgkClength[ilayer][2]/2.0 + fgkClength[ilayer][1];
1218     gMC->Gspos(cTagV, 1,"UTI1", xpos,ypos,zpos,0,"ONLY");
1219     gMC->Gspos(cTagV, 3,"UTI2", xpos,ypos,zpos,0,"ONLY");
1220     gMC->Gspos(cTagV, 5,"UTI3", xpos,ypos,zpos,0,"ONLY");
1221
1222     ypos  = - fgkClength[ilayer][2]/2.0 - fgkClength[ilayer][1];
1223     gMC->Gspos(cTagV, 2,"UTI1", xpos,ypos,zpos,0,"ONLY");
1224     gMC->Gspos(cTagV, 4,"UTI2", xpos,ypos,zpos,0,"ONLY");
1225     gMC->Gspos(cTagV, 6,"UTI3", xpos,ypos,zpos,0,"ONLY");
1226
1227   }
1228
1229   //
1230   // The horizontal connections between the cross bars
1231   //
1232
1233   const Int_t   kNparSCH = 3;
1234   Float_t parSCH[kNparSCH];
1235
1236   for (ilayer = 1; ilayer < kNlayer-1; ilayer++) {
1237
1238     parSCH[0] = fgkCwidth[ilayer]/2.0;
1239     parSCH[1] = (fgkClength[ilayer+1][2]/2.0 + fgkClength[ilayer+1][1]
1240                - fgkClength[ilayer  ][2]/2.0 - fgkClength[ilayer  ][1])/2.0;
1241     parSCH[2] = kSCHhgt/2.0;
1242
1243     sprintf(cTagV,"USH%01d",ilayer);
1244     gMC->Gsvolu(cTagV,"BOX ",idtmed[1301-1],parSCH,kNparSCH);
1245     xpos  = 0.0;
1246     ypos  = fgkClength[ilayer][2]/2.0 + fgkClength[ilayer][1] + parSCH[1];
1247     zpos  = fgkVrocsm + fgkSMpltT - kSCHhgt/2.0 - fgkSheight/2.0
1248           + (ilayer+1) * (fgkCH + fgkVspace);
1249     gMC->Gspos(cTagV,1,"UTI1", xpos,ypos,zpos,0,"ONLY");
1250     gMC->Gspos(cTagV,3,"UTI2", xpos,ypos,zpos,0,"ONLY");
1251     gMC->Gspos(cTagV,5,"UTI3", xpos,ypos,zpos,0,"ONLY");
1252     ypos  = -ypos;
1253     gMC->Gspos(cTagV,2,"UTI1", xpos,ypos,zpos,0,"ONLY");
1254     gMC->Gspos(cTagV,4,"UTI2", xpos,ypos,zpos,0,"ONLY");
1255     gMC->Gspos(cTagV,6,"UTI3", xpos,ypos,zpos,0,"ONLY");
1256
1257   }
1258
1259   //
1260   // The aymmetric flat frame in the middle
1261   //
1262
1263   // The envelope volume (aluminum)
1264   parTRD[0]  =  87.60/2.0;
1265   parTRD[1]  = 114.00/2.0;
1266   parTRD[2]  =   1.20/2.0;
1267   parTRD[3]  =  71.30/2.0;
1268   gMC->Gsvolu("USDB","TRD1",idtmed[1301-1],parTRD,kNparTRD);
1269   // Empty spaces (air)
1270   parTRP[ 0] =   1.20/2.0;
1271   parTRP[ 1] =   0.0;
1272   parTRP[ 2] =   0.0;
1273   parTRP[ 3] =  27.00/2.0;
1274   parTRP[ 4] =  50.60/2.0;
1275   parTRP[ 5] =   5.00/2.0;
1276   parTRP[ 6] =   3.5;
1277   parTRP[ 7] =  27.00/2.0;
1278   parTRP[ 8] =  50.60/2.0;
1279   parTRP[ 9] =   5.00/2.0;
1280   parTRP[10] =   3.5;
1281   gMC->Gsvolu("USD1","TRAP",idtmed[1302-1],parTRP,kNparTRP);
1282   xpos       =  18.0;
1283   ypos       =   0.0;
1284   zpos       =   27.00/2.0 - 71.3/2.0;
1285   gMC->Gspos("USD1",1,"USDB", xpos, ypos, zpos,matrix[2],"ONLY");
1286   // Empty spaces (air)
1287   parTRP[ 0] =   1.20/2.0;
1288   parTRP[ 1] =   0.0;
1289   parTRP[ 2] =   0.0;
1290   parTRP[ 3] =  33.00/2.0;
1291   parTRP[ 4] =   5.00/2.0;
1292   parTRP[ 5] =  62.10/2.0;
1293   parTRP[ 6] =   3.5;
1294   parTRP[ 7] =  33.00/2.0;
1295   parTRP[ 8] =   5.00/2.0;
1296   parTRP[ 9] =  62.10/2.0;
1297   parTRP[10] =   3.5;
1298   gMC->Gsvolu("USD2","TRAP",idtmed[1302-1],parTRP,kNparTRP);
1299   xpos       =  21.0;
1300   ypos       =   0.0;
1301   zpos       =  71.3/2.0 - 33.0/2.0;
1302   gMC->Gspos("USD2",1,"USDB", xpos, ypos, zpos,matrix[2],"ONLY");
1303   // Empty spaces (air)
1304   parBOX[ 0] =  22.50/2.0;
1305   parBOX[ 1] =   1.20/2.0;
1306   parBOX[ 2] =  70.50/2.0;
1307   gMC->Gsvolu("USD3","BOX ",idtmed[1302-1],parBOX,kNparBOX);
1308   xpos       = -25.75;
1309   ypos       =   0.0;
1310   zpos       =   0.4;
1311   gMC->Gspos("USD3",1,"USDB", xpos, ypos, zpos,        0,"ONLY");
1312   // Empty spaces (air)
1313   parTRP[ 0] =   1.20/2.0;
1314   parTRP[ 1] =   0.0;
1315   parTRP[ 2] =   0.0;
1316   parTRP[ 3] =  25.50/2.0;
1317   parTRP[ 4] =   5.00/2.0;
1318   parTRP[ 5] =  65.00/2.0;
1319   parTRP[ 6] =  -1.0;
1320   parTRP[ 7] =  25.50/2.0;
1321   parTRP[ 8] =   5.00/2.0;
1322   parTRP[ 9] =  65.00/2.0;
1323   parTRP[10] =  -1.0;
1324   gMC->Gsvolu("USD4","TRAP",idtmed[1302-1],parTRP,kNparTRP);
1325   xpos       =   2.0;
1326   ypos       =   0.0;
1327   zpos       =  -1.6;
1328   gMC->Gspos("USD4",1,"USDB", xpos, ypos, zpos,matrix[6],"ONLY");
1329   // Empty spaces (air)
1330   parTRP[ 0] =   1.20/2.0;
1331   parTRP[ 1] =   0.0;
1332   parTRP[ 2] =   0.0;
1333   parTRP[ 3] =  23.50/2.0;
1334   parTRP[ 4] =  63.50/2.0;
1335   parTRP[ 5] =   5.00/2.0;
1336   parTRP[ 6] =  16.0;
1337   parTRP[ 7] =  23.50/2.0;
1338   parTRP[ 8] =  63.50/2.0;
1339   parTRP[ 9] =   5.00/2.0;
1340   parTRP[10] =  16.0;
1341   gMC->Gsvolu("USD5","TRAP",idtmed[1302-1],parTRP,kNparTRP);
1342   xpos       =  36.5;
1343   ypos       =   0.0;
1344   zpos       =  -1.5;
1345   gMC->Gspos("USD5",1,"USDB", xpos, ypos, zpos,matrix[5],"ONLY");
1346   // Empty spaces (air)
1347   parTRP[ 0] =   1.20/2.0;
1348   parTRP[ 1] =   0.0;
1349   parTRP[ 2] =   0.0;
1350   parTRP[ 3] =  70.50/2.0;
1351   parTRP[ 4] =   4.50/2.0;
1352   parTRP[ 5] =  16.50/2.0;
1353   parTRP[ 6] =  -5.0;
1354   parTRP[ 7] =  70.50/2.0;
1355   parTRP[ 8] =   4.50/2.0;
1356   parTRP[ 9] =  16.50/2.0;
1357   parTRP[10] =  -5.0;
1358   gMC->Gsvolu("USD6","TRAP",idtmed[1302-1],parTRP,kNparTRP);
1359   xpos       = -43.7;
1360   ypos       =   0.0;
1361   zpos       =   0.4;
1362   gMC->Gspos("USD6",1,"USDB", xpos, ypos, zpos,matrix[2],"ONLY");
1363   xpos       =   0.0;
1364   ypos       =   fgkClength[5][2]/2.0;
1365   zpos       =   0.04;
1366   gMC->Gspos("USDB",1,"UTI1", xpos, ypos, zpos,        0,"ONLY");
1367   gMC->Gspos("USDB",2,"UTI1", xpos,-ypos, zpos,        0,"ONLY");
1368   gMC->Gspos("USDB",3,"UTI2", xpos, ypos, zpos,        0,"ONLY");
1369   gMC->Gspos("USDB",4,"UTI2", xpos,-ypos, zpos,        0,"ONLY");
1370   gMC->Gspos("USDB",5,"UTI3", xpos, ypos, zpos,        0,"ONLY");
1371   gMC->Gspos("USDB",6,"UTI3", xpos,-ypos, zpos,        0,"ONLY");
1372   // Upper bar (aluminum)
1373   parBOX[0] = 95.00/2.0;
1374   parBOX[1] =  1.20/2.0;
1375   parBOX[2] =  3.00/2.0;
1376   gMC->Gsvolu("USD7","BOX ",idtmed[1301-1],parBOX,kNparBOX);
1377   xpos       =   0.0;
1378   ypos       =   fgkClength[5][2]/2.0;
1379   zpos       =   fgkSheight/2.0 - fgkSMpltT  - 3.00/2.0;
1380   gMC->Gspos("USD7",1,"UTI1", xpos, ypos, zpos,        0,"ONLY");
1381   gMC->Gspos("USD7",2,"UTI1", xpos,-ypos, zpos,        0,"ONLY");
1382   gMC->Gspos("USD7",3,"UTI2", xpos, ypos, zpos,        0,"ONLY");
1383   gMC->Gspos("USD7",4,"UTI2", xpos,-ypos, zpos,        0,"ONLY");
1384   gMC->Gspos("USD7",5,"UTI3", xpos, ypos, zpos,        0,"ONLY");
1385   gMC->Gspos("USD7",6,"UTI3", xpos,-ypos, zpos,        0,"ONLY");
1386   // Lower bar (aluminum)
1387   parBOX[0] = 90.22/2.0;
1388   parBOX[1] =  1.20/2.0;
1389   parBOX[2] =  1.74/2.0;
1390   gMC->Gsvolu("USD8","BOX ",idtmed[1301-1],parBOX,kNparBOX);
1391   xpos       =   0.0;
1392   ypos       =   fgkClength[5][2]/2.0 - 0.1;
1393   zpos       =  -fgkSheight/2.0 + fgkSMpltT + 2.27;
1394   gMC->Gspos("USD8",1,"UTI1", xpos, ypos, zpos,        0,"ONLY");
1395   gMC->Gspos("USD8",2,"UTI1", xpos,-ypos, zpos,        0,"ONLY");
1396   gMC->Gspos("USD8",3,"UTI2", xpos, ypos, zpos,        0,"ONLY");
1397   gMC->Gspos("USD8",4,"UTI2", xpos,-ypos, zpos,        0,"ONLY");
1398   gMC->Gspos("USD8",5,"UTI3", xpos, ypos, zpos,        0,"ONLY");
1399   gMC->Gspos("USD8",6,"UTI3", xpos,-ypos, zpos,        0,"ONLY");
1400   // Lower bar (aluminum)
1401   parBOX[0] = 82.60/2.0;
1402   parBOX[1] =  1.20/2.0;
1403   parBOX[2] =  1.40/2.0;
1404   gMC->Gsvolu("USD9","BOX ",idtmed[1301-1],parBOX,kNparBOX);
1405   xpos       =   0.0;
1406   ypos       =   fgkClength[5][2]/2.0;
1407   zpos       =  -fgkSheight/2.0 + fgkSMpltT + 1.40/2.0;
1408   gMC->Gspos("USD9",1,"UTI1", xpos, ypos, zpos,        0,"ONLY");
1409   gMC->Gspos("USD9",2,"UTI1", xpos,-ypos, zpos,        0,"ONLY");
1410   gMC->Gspos("USD9",3,"UTI2", xpos, ypos, zpos,        0,"ONLY");
1411   gMC->Gspos("USD9",4,"UTI2", xpos,-ypos, zpos,        0,"ONLY");
1412   gMC->Gspos("USD9",5,"UTI3", xpos, ypos, zpos,        0,"ONLY");
1413   gMC->Gspos("USD9",6,"UTI3", xpos,-ypos, zpos,        0,"ONLY");
1414   // Front sheet (aluminum)
1415   parTRP[ 0] =   0.10/2.0;
1416   parTRP[ 1] =   0.0;
1417   parTRP[ 2] =   0.0;
1418   parTRP[ 3] =  74.50/2.0;
1419   parTRP[ 4] =  31.70/2.0;
1420   parTRP[ 5] =  44.00/2.0;
1421   parTRP[ 6] =  -5.0;
1422   parTRP[ 7] =  74.50/2.0;
1423   parTRP[ 8] =  31.70/2.0;
1424   parTRP[ 9] =  44.00/2.0;
1425   parTRP[10] =  -5.0;
1426   gMC->Gsvolu("USDF","TRAP",idtmed[1302-1],parTRP,kNparTRP);
1427   xpos       = -32.0;
1428   ypos       =   fgkClength[5][2]/2.0 + 1.20/2.0 + 0.10/2.0;
1429   zpos       =   0.0;
1430   gMC->Gspos("USDF",1,"UTI1", xpos, ypos, zpos,matrix[2],"ONLY");
1431   gMC->Gspos("USDF",2,"UTI1", xpos,-ypos, zpos,matrix[2],"ONLY");
1432   gMC->Gspos("USDF",3,"UTI2", xpos, ypos, zpos,matrix[2],"ONLY");
1433   gMC->Gspos("USDF",4,"UTI2", xpos,-ypos, zpos,matrix[2],"ONLY");
1434   gMC->Gspos("USDF",5,"UTI3", xpos, ypos, zpos,matrix[2],"ONLY");
1435   gMC->Gspos("USDF",6,"UTI3", xpos,-ypos, zpos,matrix[2],"ONLY");
1436
1437   //
1438   // The flat frame in front of the chambers
1439   //
1440
1441   // The envelope volume (aluminum)
1442   parTRD[0]  =  90.00/2.0 - 0.1;
1443   parTRD[1]  = 114.00/2.0 - 0.1;
1444   parTRD[2]  =   1.50/2.0;
1445   parTRD[3]  =  70.30/2.0;
1446   gMC->Gsvolu("USCB","TRD1",idtmed[1301-1],parTRD,kNparTRD);
1447   // Empty spaces (air)
1448   parTRD[0]  =  87.00/2.0;
1449   parTRD[1]  =  10.00/2.0;
1450   parTRD[2]  =   1.50/2.0;
1451   parTRD[3]  =  26.35/2.0;
1452   gMC->Gsvolu("USC1","TRD1",idtmed[1302-1],parTRD,kNparTRD);
1453   xpos       =  0.0;
1454   ypos       =  0.0;
1455   zpos       = 26.35/2.0 - 70.3/2.0;
1456   gMC->Gspos("USC1",1,"USCB",xpos,ypos,zpos,0,"ONLY");
1457   // Empty spaces (air)
1458   parTRD[0]  =  10.00/2.0;
1459   parTRD[1]  = 111.00/2.0;
1460   parTRD[2]  =   1.50/2.0;
1461   parTRD[3]  =  35.05/2.0;
1462   gMC->Gsvolu("USC2","TRD1",idtmed[1302-1],parTRD,kNparTRD);
1463   xpos       =  0.0;
1464   ypos       =  0.0;
1465   zpos       = 70.3/2.0 - 35.05/2.0;
1466   gMC->Gspos("USC2",1,"USCB",xpos,ypos,zpos,0,"ONLY");
1467   // Empty spaces (air)
1468   parTRP[ 0] =   1.50/2.0;
1469   parTRP[ 1] =   0.0;
1470   parTRP[ 2] =   0.0;
1471   parTRP[ 3] =  37.60/2.0;
1472   parTRP[ 4] =  63.90/2.0;
1473   parTRP[ 5] =   8.86/2.0;
1474   parTRP[ 6] =  16.0;
1475   parTRP[ 7] =  37.60/2.0;
1476   parTRP[ 8] =  63.90/2.0;
1477   parTRP[ 9] =   8.86/2.0;
1478   parTRP[10] =  16.0;
1479   gMC->Gsvolu("USC3","TRAP",idtmed[1302-1],parTRP,kNparTRP);
1480   xpos       = -30.5;
1481   ypos       =   0.0;
1482   zpos       =  -2.0;
1483   gMC->Gspos("USC3",1,"USCB", xpos, ypos, zpos,matrix[4],"ONLY");
1484   gMC->Gspos("USC3",2,"USCB",-xpos, ypos, zpos,matrix[5],"ONLY");
1485   xpos       =   0.0;
1486   ypos       =   fgkClength[5][2]/2.0 + fgkClength[5][1] + fgkClength[5][0];
1487   zpos       =   0.0;
1488   gMC->Gspos("USCB",1,"UTI1", xpos, ypos, zpos,        0,"ONLY");
1489   gMC->Gspos("USCB",2,"UTI1", xpos,-ypos, zpos,        0,"ONLY");
1490   gMC->Gspos("USCB",3,"UTI2", xpos, ypos, zpos,        0,"ONLY");
1491   gMC->Gspos("USCB",4,"UTI2", xpos,-ypos, zpos,        0,"ONLY");
1492   gMC->Gspos("USCB",5,"UTI3", xpos, ypos, zpos,        0,"ONLY");
1493   gMC->Gspos("USCB",6,"UTI3", xpos,-ypos, zpos,        0,"ONLY");
1494   // Upper bar (aluminum)
1495   parBOX[0] = 95.00/2.0;
1496   parBOX[1] =  1.50/2.0;
1497   parBOX[2] =  3.00/2.0;
1498   gMC->Gsvolu("USC4","BOX ",idtmed[1301-1],parBOX,kNparBOX);
1499   xpos       =   0.0;
1500   ypos       =   fgkClength[5][2]/2.0 + fgkClength[5][1] + fgkClength[5][0];
1501   zpos       =   fgkSheight/2.0 - fgkSMpltT - 3.00/2.0;
1502   gMC->Gspos("USC4",1,"UTI1", xpos, ypos, zpos,        0,"ONLY");
1503   gMC->Gspos("USC4",2,"UTI1", xpos,-ypos, zpos,        0,"ONLY");
1504   gMC->Gspos("USC4",3,"UTI2", xpos, ypos, zpos,        0,"ONLY");
1505   gMC->Gspos("USC4",4,"UTI2", xpos,-ypos, zpos,        0,"ONLY");
1506   gMC->Gspos("USC4",5,"UTI3", xpos, ypos, zpos,        0,"ONLY");
1507   gMC->Gspos("USC4",6,"UTI3", xpos,-ypos, zpos,        0,"ONLY");
1508   // Lower bar (aluminum)
1509   parBOX[0] = 90.22/2.0;
1510   parBOX[1] =  1.50/2.0;
1511   parBOX[2] =  2.00/2.0;
1512   gMC->Gsvolu("USC5","BOX ",idtmed[1301-1],parBOX,kNparBOX);
1513   xpos       =   0.0;
1514   ypos       =   fgkClength[5][2]/2.0 + fgkClength[5][1] + fgkClength[5][0];
1515   zpos       =  -fgkSheight/2.0 + fgkSMpltT + 2.60;
1516   gMC->Gspos("USC5",1,"UTI1", xpos, ypos, zpos,        0,"ONLY");
1517   gMC->Gspos("USC5",2,"UTI1", xpos,-ypos, zpos,        0,"ONLY");
1518   gMC->Gspos("USC5",3,"UTI2", xpos, ypos, zpos,        0,"ONLY");
1519   gMC->Gspos("USC5",4,"UTI2", xpos,-ypos, zpos,        0,"ONLY");
1520   gMC->Gspos("USC5",5,"UTI3", xpos, ypos, zpos,        0,"ONLY");
1521   gMC->Gspos("USC5",6,"UTI3", xpos,-ypos, zpos,        0,"ONLY");
1522   // Lower bar (aluminum)
1523   parBOX[0] = 82.60/2.0;
1524   parBOX[1] =  1.50/2.0;
1525   parBOX[2] =  1.60/2.0;
1526   gMC->Gsvolu("USC6","BOX ",idtmed[1301-1],parBOX,kNparBOX);
1527   xpos       =   0.0;
1528   ypos       =   fgkClength[5][2]/2.0 + fgkClength[5][1] + fgkClength[5][0];
1529   zpos       =  -fgkSheight/2.0 + fgkSMpltT + 1.60/2.0;
1530   gMC->Gspos("USC6",1,"UTI1", xpos, ypos, zpos,        0,"ONLY");
1531   gMC->Gspos("USC6",2,"UTI1", xpos,-ypos, zpos,        0,"ONLY");
1532   gMC->Gspos("USC6",3,"UTI2", xpos, ypos, zpos,        0,"ONLY");
1533   gMC->Gspos("USC6",4,"UTI2", xpos,-ypos, zpos,        0,"ONLY");
1534   gMC->Gspos("USC6",5,"UTI3", xpos, ypos, zpos,        0,"ONLY");
1535   gMC->Gspos("USC6",6,"UTI3", xpos,-ypos, zpos,        0,"ONLY");
1536
1537   //
1538   // The long corner ledges
1539   //
1540
1541   const Int_t   kNparSCL  =  3;
1542   Float_t parSCL[kNparSCL];
1543   const Int_t   kNparSCLb = 11;
1544   Float_t parSCLb[kNparSCLb];
1545
1546   // Upper ledges
1547   // Thickness of the corner ledges
1548   const Float_t kSCLthkUa  =  0.6;
1549   const Float_t kSCLthkUb  =  0.6;
1550   // Width of the corner ledges
1551   const Float_t kSCLwidUa  =  3.2;
1552   const Float_t kSCLwidUb  =  4.8;
1553   // Position of the corner ledges
1554   const Float_t kSCLposxUa = 0.7;
1555   const Float_t kSCLposxUb = 3.3;
1556   const Float_t kSCLposzUa = 1.65;
1557   const Float_t kSCLposzUb = 0.3;
1558   // Vertical
1559   parSCL[0]  = kSCLthkUa /2.0;
1560   parSCL[1]  = fgkSlength/2.0;
1561   parSCL[2]  = kSCLwidUa /2.0;
1562   gMC->Gsvolu("USL1","BOX ",idtmed[1301-1],parSCL,kNparSCL);
1563   xpos  =   fgkSwidth2/2.0 - fgkSMpltT - kSCLposxUa;
1564   ypos  =   0.0;
1565   zpos  =   fgkSheight/2.0 - fgkSMpltT - kSCLposzUa;
1566   gMC->Gspos("USL1",1,"UTI1", xpos,ypos,zpos,matrix[0],"ONLY");
1567   xpos  = -xpos;
1568   gMC->Gspos("USL1",2,"UTI1", xpos,ypos,zpos,matrix[1],"ONLY");
1569   // Horizontal
1570   parSCL[0]  = kSCLwidUb /2.0;
1571   parSCL[1]  = fgkSlength/2.0;
1572   parSCL[2]  = kSCLthkUb /2.0;
1573   gMC->Gsvolu("USL2","BOX ",idtmed[1301-1],parSCL,kNparSCL);
1574   xpos  =   fgkSwidth2/2.0 - fgkSMpltT - kSCLposxUb;
1575   ypos  =   0.0;
1576   zpos  =   fgkSheight/2.0 - fgkSMpltT - kSCLposzUb;
1577   gMC->Gspos("USL2",1,"UTI1", xpos,ypos,zpos,        0,"ONLY");
1578   gMC->Gspos("USL2",3,"UTI2", xpos,ypos,zpos,        0,"ONLY");
1579   gMC->Gspos("USL2",5,"UTI3", xpos,ypos,zpos,        0,"ONLY");
1580   xpos  = -xpos;
1581   gMC->Gspos("USL2",2,"UTI1", xpos,ypos,zpos,        0,"ONLY");
1582   gMC->Gspos("USL2",4,"UTI2", xpos,ypos,zpos,        0,"ONLY");
1583   gMC->Gspos("USL2",6,"UTI3", xpos,ypos,zpos,        0,"ONLY");
1584
1585   // Lower ledges
1586   // Thickness of the corner ledges
1587   const Float_t kSCLthkLa  =  2.464;
1588   const Float_t kSCLthkLb  =  1.0;
1589   // Width of the corner ledges
1590   const Float_t kSCLwidLa  =  8.3;
1591   const Float_t kSCLwidLb  =  4.0;
1592   // Position of the corner ledges
1593   const Float_t kSCLposxLa = (3.0 * kSCLthkLb - kSCLthkLa) / 4.0 + 0.05;
1594   const Float_t kSCLposxLb = kSCLthkLb + kSCLwidLb/2.0 + 0.05;
1595   const Float_t kSCLposzLa = kSCLwidLa/2.0;
1596   const Float_t kSCLposzLb = kSCLthkLb/2.0;
1597   // Vertical
1598   // Trapezoidal shape
1599   parSCLb[ 0] = fgkSlength/2.0;
1600   parSCLb[ 1] = 0.0;
1601   parSCLb[ 2] = 0.0;
1602   parSCLb[ 3] = kSCLwidLa /2.0;
1603   parSCLb[ 4] = kSCLthkLb /2.0;
1604   parSCLb[ 5] = kSCLthkLa /2.0;
1605   parSCLb[ 6] = 5.0;
1606   parSCLb[ 7] = kSCLwidLa /2.0;
1607   parSCLb[ 8] = kSCLthkLb /2.0;
1608   parSCLb[ 9] = kSCLthkLa /2.0;
1609   parSCLb[10] = 5.0;
1610   gMC->Gsvolu("USL3","TRAP",idtmed[1301-1],parSCLb,kNparSCLb);
1611   xpos  =   fgkSwidth1/2.0 - fgkSMpltT - kSCLposxLa;
1612   ypos  =   0.0;
1613   zpos  = - fgkSheight/2.0 + fgkSMpltT + kSCLposzLa;
1614   gMC->Gspos("USL3",1,"UTI1", xpos,ypos,zpos,matrix[2],"ONLY");
1615   gMC->Gspos("USL3",3,"UTI2", xpos,ypos,zpos,matrix[2],"ONLY");
1616   gMC->Gspos("USL3",5,"UTI3", xpos,ypos,zpos,matrix[2],"ONLY");
1617   xpos  = -xpos;
1618   gMC->Gspos("USL3",2,"UTI1", xpos,ypos,zpos,matrix[3],"ONLY");
1619   gMC->Gspos("USL3",4,"UTI2", xpos,ypos,zpos,matrix[3],"ONLY");
1620   gMC->Gspos("USL3",6,"UTI3", xpos,ypos,zpos,matrix[3],"ONLY");
1621   // Horizontal part
1622   parSCL[0]  = kSCLwidLb /2.0;
1623   parSCL[1]  = fgkSlength/2.0;
1624   parSCL[2]  = kSCLthkLb /2.0;
1625   gMC->Gsvolu("USL4","BOX ",idtmed[1301-1],parSCL,kNparSCL);
1626   xpos  =   fgkSwidth1/2.0 - fgkSMpltT - kSCLposxLb;
1627   ypos  =   0.0;
1628   zpos  = - fgkSheight/2.0 + fgkSMpltT + kSCLposzLb;
1629   gMC->Gspos("USL4",1,"UTI1", xpos,ypos,zpos,        0,"ONLY");
1630   gMC->Gspos("USL4",3,"UTI2", xpos,ypos,zpos,        0,"ONLY");
1631   gMC->Gspos("USL4",5,"UTI3", xpos,ypos,zpos,        0,"ONLY");
1632   xpos  = -xpos;
1633   gMC->Gspos("USL4",2,"UTI1", xpos,ypos,zpos,        0,"ONLY");
1634   gMC->Gspos("USL4",4,"UTI2", xpos,ypos,zpos,        0,"ONLY");
1635   gMC->Gspos("USL4",6,"UTI3", xpos,ypos,zpos,        0,"ONLY");
1636
1637   //
1638   // Aluminum plates in the front part of the super modules
1639   //
1640
1641   const Int_t kNparTrd = 4;
1642   Float_t parTrd[kNparTrd];
1643   parTrd[0] = fgkSwidth1/2.0 - 2.5;
1644   parTrd[1] = fgkSwidth2/2.0 - 2.5;
1645   parTrd[2] = fgkSMpltT /2.0;
1646   parTrd[3] = fgkSheight/2.0 - 1.0;
1647   gMC->Gsvolu("UTA1","TRD1",idtmed[1301-1],parTrd,kNparTrd);
1648   xpos      =  0.0;
1649   ypos      =  fgkSMpltT/2.0 - fgkFlength/2.0;
1650   zpos      = -0.5;
1651   gMC->Gspos("UTA1",1,"UTF1",xpos, ypos,zpos,        0,"ONLY");
1652   gMC->Gspos("UTA1",2,"UTF2",xpos,-ypos,zpos,        0,"ONLY");
1653
1654   const Int_t kNparPlt = 3;
1655   Float_t parPlt[kNparPlt];
1656   parPlt[0] =  0.0;
1657   parPlt[1] =  0.0;
1658   parPlt[2] =  0.0;
1659   gMC->Gsvolu("UTA2","BOX ",idtmed[1301-1],parPlt,0);
1660   xpos      =  0.0;
1661   ypos      =  0.0;
1662   zpos      =  fgkSheight/2.0 - fgkSMpltT/2.0;
1663   parPlt[0] = fgkSwidth2/2.0 - 0.2;
1664   parPlt[1] = fgkFlength/2.0;
1665   parPlt[2] = fgkSMpltT /2.0;
1666   gMC->Gsposp("UTA2",1,"UTF2",xpos,ypos,zpos
1667                     ,        0,"ONLY",parPlt,kNparPlt);
1668   xpos      = (fgkSwidth1 + fgkSwidth2)/4.0 - fgkSMpltT/2.0 - 0.0016;
1669   ypos      =  0.0;
1670   zpos      =  0.0;
1671   parPlt[0] = fgkSMpltT /2.0;
1672   parPlt[1] = fgkFlength/2.0;
1673   parPlt[2] = fgkSheight/2.0;
1674   gMC->Gsposp("UTA2",2,"UTF2", xpos,ypos,zpos
1675                     ,matrix[0],"ONLY",parPlt,kNparPlt);
1676   gMC->Gsposp("UTA2",3,"UTF2",-xpos,ypos,zpos
1677                     ,matrix[1],"ONLY",parPlt,kNparPlt);
1678
1679   // Additional aluminum bar
1680   parBOX[0] = 80.0/2.0;
1681   parBOX[1] =  1.0/2.0;
1682   parBOX[2] = 10.0/2.0;
1683   gMC->Gsvolu("UTA3","BOX ",idtmed[1301-1],parBOX,kNparBOX);
1684   xpos      =  0.0;
1685   ypos      =  1.0/2.0 + fgkSMpltT - fgkFlength/2.0;
1686   zpos      =  fgkSheight/2.0 - 1.5 - 10.0/2.0;
1687   gMC->Gspos("UTA3",1,"UTF1", xpos, ypos, zpos,        0,"ONLY");
1688   gMC->Gspos("UTA3",2,"UTF2", xpos,-ypos, zpos,        0,"ONLY");
1689
1690 }
1691
1692 //_____________________________________________________________________________
1693 void AliTRDgeometry::CreateServices(Int_t *idtmed)
1694 {
1695   //
1696   // Create the geometry of the services
1697   //
1698   // Names of the TRD services volumina
1699   //
1700   //        UTC1    Cooling arterias (Al)
1701   //        UTC2    Cooling arterias (Water)
1702   //        UUxx    Volumes for the services at the chambers (Air)
1703   //        UMCM    Readout MCMs     (G10/Cu/Si)
1704   //        UDCS    DCSs boards      (G10/Cu)
1705   //        UTP1    Power bars       (Cu)
1706   //        UTCP    Cooling pipes    (Fe)
1707   //        UTCH    Cooling pipes    (Water)
1708   //        UTPL    Power lines      (Cu)
1709   //        UTGD    Gas distribution box (V2A)
1710   //
1711
1712   Int_t   ilayer = 0;
1713   Int_t   istack = 0;
1714
1715   Float_t xpos  = 0.0;
1716   Float_t ypos  = 0.0;
1717   Float_t zpos  = 0.0;
1718
1719   Char_t  cTagV[100];
1720
1721   const Int_t kNparBox  = 3;
1722   Float_t parBox[kNparBox];
1723
1724   const Int_t kNparTube = 3;
1725   Float_t parTube[kNparTube];
1726
1727   // Services inside the baby frame
1728   const Float_t kBBMdz = 223.0;
1729   const Float_t kBBSdz =   8.5;
1730
1731   // Services inside the back frame
1732   const Float_t kBFMdz = 118.0;
1733   const Float_t kBFSdz =   8.5;
1734
1735   // The rotation matrices
1736   const Int_t kNmatrix = 10;
1737   Int_t   matrix[kNmatrix];
1738   gMC->Matrix(matrix[0], 100.0,   0.0,  90.0,  90.0,  10.0,   0.0); // rotation around y-axis
1739   gMC->Matrix(matrix[1],  80.0,   0.0,  90.0,  90.0,  10.0, 180.0); // rotation around y-axis
1740   gMC->Matrix(matrix[2],   0.0,   0.0,  90.0,  90.0,  90.0,   0.0);
1741   gMC->Matrix(matrix[3], 180.0,   0.0,  90.0,  90.0,  90.0, 180.0);
1742   gMC->Matrix(matrix[4],  90.0,   0.0,   0.0,   0.0,  90.0,  90.0);
1743   gMC->Matrix(matrix[5], 100.0,   0.0,  90.0, 270.0,  10.0,   0.0);
1744   gMC->Matrix(matrix[6],  80.0,   0.0,  90.0, 270.0,  10.0, 180.0);
1745   gMC->Matrix(matrix[7],  90.0,  10.0,  90.0, 100.0,   0.0,   0.0); // rotation around z-axis
1746   gMC->Matrix(matrix[8],  90.0, 350.0,  90.0,  80.0,   0.0,   0.0); // rotation around z-axis
1747   gMC->Matrix(matrix[9],  90.0,  90.0,  90.0, 180.0,   0.0,   0.0); // rotation around z-axis
1748
1749   //
1750   // The cooling arterias
1751   //
1752
1753   // Width of the cooling arterias
1754   const Float_t kCOLwid  =  0.8;
1755   // Height of the cooling arterias
1756   const Float_t kCOLhgt  =  6.5;
1757   // Positioning of the cooling
1758   const Float_t kCOLposx =  1.0;
1759   const Float_t kCOLposz = -1.2;
1760   // Thickness of the walls of the cooling arterias
1761   const Float_t kCOLthk  =  0.1;
1762   const Int_t   kNparCOL =  3;
1763   Float_t parCOL[kNparCOL];
1764   parCOL[0] = 0.0;
1765   parCOL[1] = 0.0;
1766   parCOL[2] = 0.0;
1767   gMC->Gsvolu("UTC1","BOX ",idtmed[1308-1],parCOL,0);
1768   gMC->Gsvolu("UTC3","BOX ",idtmed[1308-1],parCOL,0);
1769   parCOL[0] =  kCOLwid/2.0 - kCOLthk;
1770   parCOL[1] = -1.0;
1771   parCOL[2] =  kCOLhgt/2.0 - kCOLthk;
1772   gMC->Gsvolu("UTC2","BOX ",idtmed[1314-1],parCOL,kNparCOL);
1773   gMC->Gsvolu("UTC4","BOX ",idtmed[1314-1],parCOL,kNparCOL);
1774
1775   xpos  = 0.0;
1776   ypos  = 0.0;
1777   zpos  = 0.0;
1778   gMC->Gspos("UTC2",1,"UTC1", xpos,ypos,zpos,0,"ONLY");
1779   gMC->Gspos("UTC4",1,"UTC3", xpos,ypos,zpos,0,"ONLY");
1780
1781   for (ilayer = 1; ilayer < kNlayer; ilayer++) {
1782
1783     // Along the chambers
1784     xpos      = fgkCwidth[ilayer]/2.0 + kCOLwid/2.0 + kCOLposx;
1785     ypos      = 0.0;
1786     zpos      = fgkVrocsm + fgkSMpltT - fgkCalZpos
1787               + kCOLhgt/2.0 - fgkSheight/2.0 + kCOLposz
1788               + ilayer * (fgkCH + fgkVspace);
1789     parCOL[0] = kCOLwid   /2.0;
1790     parCOL[1] = fgkSlength/2.0;
1791     parCOL[2] = kCOLhgt   /2.0;
1792     gMC->Gsposp("UTC1",ilayer          ,"UTI1", xpos,ypos,zpos
1793                       ,matrix[0],"ONLY",parCOL,kNparCOL);
1794     gMC->Gsposp("UTC1",ilayer+  kNlayer,"UTI1",-xpos,ypos,zpos
1795                       ,matrix[1],"ONLY",parCOL,kNparCOL);
1796     gMC->Gsposp("UTC1",ilayer+6*kNlayer,"UTI2", xpos,ypos,zpos
1797                       ,matrix[0],"ONLY",parCOL,kNparCOL);
1798     gMC->Gsposp("UTC1",ilayer+7*kNlayer,"UTI2",-xpos,ypos,zpos
1799                       ,matrix[1],"ONLY",parCOL,kNparCOL);
1800     gMC->Gsposp("UTC1",ilayer+8*kNlayer ,"UTI3", xpos,ypos,zpos
1801                       ,matrix[0],"ONLY",parCOL,kNparCOL);
1802     gMC->Gsposp("UTC1",ilayer+9*kNlayer,"UTI3",-xpos,ypos,zpos
1803                       ,matrix[1],"ONLY",parCOL,kNparCOL);
1804
1805     // Front of supermodules
1806     xpos      = fgkCwidth[ilayer]/2.0 + kCOLwid/2.0 + kCOLposx;
1807     ypos      = 0.0;
1808     zpos      = fgkVrocsm + fgkSMpltT - fgkCalZpos
1809               + kCOLhgt/2.0 - fgkSheight/2.0 + kCOLposz
1810               + ilayer * (fgkCH + fgkVspace);
1811     parCOL[0] = kCOLwid   /2.0;
1812     parCOL[1] = fgkFlength/2.0;
1813     parCOL[2] = kCOLhgt   /2.0;
1814     gMC->Gsposp("UTC3",ilayer+2*kNlayer,"UTF1", xpos,ypos,zpos
1815                       ,matrix[0],"ONLY",parCOL,kNparCOL);
1816     gMC->Gsposp("UTC3",ilayer+3*kNlayer,"UTF1",-xpos,ypos,zpos
1817                       ,matrix[1],"ONLY",parCOL,kNparCOL);
1818     gMC->Gsposp("UTC3",ilayer+4*kNlayer,"UTF2", xpos,ypos,zpos
1819                       ,matrix[0],"ONLY",parCOL,kNparCOL);
1820     gMC->Gsposp("UTC3",ilayer+5*kNlayer,"UTF2",-xpos,ypos,zpos
1821                       ,matrix[1],"ONLY",parCOL,kNparCOL);
1822
1823   }
1824
1825   for (ilayer = 1; ilayer < kNlayer; ilayer++) {
1826
1827     // In baby frame
1828     xpos      = fgkCwidth[ilayer]/2.0 + kCOLwid/2.0 + kCOLposx - 2.5;
1829     ypos      = kBBSdz/2.0 - kBBMdz/2.0;
1830     zpos      = fgkVrocsm + fgkSMpltT - fgkCalZpos
1831               + kCOLhgt/2.0 - fgkSheight/2.0 + kCOLposz
1832               + ilayer * (fgkCH + fgkVspace);
1833     parCOL[0] = kCOLwid/2.0;
1834     parCOL[1] = kBBSdz /2.0;
1835     parCOL[2] = kCOLhgt/2.0;
1836     gMC->Gsposp("UTC3",ilayer+6*kNlayer,"BBTRD", xpos, ypos, zpos
1837                       ,matrix[0],"ONLY",parCOL,kNparCOL);
1838     gMC->Gsposp("UTC3",ilayer+7*kNlayer,"BBTRD",-xpos, ypos, zpos
1839                       ,matrix[1],"ONLY",parCOL,kNparCOL);
1840
1841   }
1842
1843   for (ilayer = 1; ilayer < kNlayer; ilayer++) {
1844
1845     // In back frame
1846     xpos      = fgkCwidth[ilayer]/2.0 + kCOLwid/2.0 + kCOLposx - 0.3;
1847     ypos      = -kBFSdz/2.0 + kBFMdz/2.0;
1848     zpos      = fgkVrocsm + fgkSMpltT - fgkCalZpos
1849               + kCOLhgt/2.0 - fgkSheight/2.0 + kCOLposz
1850               + ilayer * (fgkCH + fgkVspace);
1851     parCOL[0] = kCOLwid/2.0;
1852     parCOL[1] = kBFSdz /2.0;
1853     parCOL[2] = kCOLhgt/2.0;
1854     gMC->Gsposp("UTC3",ilayer+6*kNlayer,"BFTRD", xpos,ypos,zpos
1855                       ,matrix[0],"ONLY",parCOL,kNparCOL);
1856     gMC->Gsposp("UTC3",ilayer+7*kNlayer,"BFTRD",-xpos,ypos,zpos
1857                       ,matrix[1],"ONLY",parCOL,kNparCOL);
1858
1859   }
1860
1861   // The upper most layer
1862   // Along the chambers
1863   xpos      = fgkCwidth[5]/2.0 - kCOLhgt/2.0 - 1.3;
1864   ypos      = 0.0;
1865   zpos      = fgkSheight/2.0 - fgkSMpltT - 0.4 - kCOLwid/2.0;
1866   parCOL[0] = kCOLwid   /2.0;
1867   parCOL[1] = fgkSlength/2.0;
1868   parCOL[2] = kCOLhgt   /2.0;
1869   gMC->Gsposp("UTC1",6          ,"UTI1", xpos,ypos,zpos
1870                     ,matrix[3],"ONLY",parCOL,kNparCOL);
1871   gMC->Gsposp("UTC1",6+  kNlayer,"UTI1",-xpos,ypos,zpos
1872                     ,matrix[3],"ONLY",parCOL,kNparCOL);
1873   gMC->Gsposp("UTC1",6+6*kNlayer,"UTI2", xpos,ypos,zpos
1874                     ,matrix[3],"ONLY",parCOL,kNparCOL);
1875   gMC->Gsposp("UTC1",6+7*kNlayer,"UTI2",-xpos,ypos,zpos
1876                     ,matrix[3],"ONLY",parCOL,kNparCOL);
1877   gMC->Gsposp("UTC1",6+8*kNlayer,"UTI3", xpos,ypos,zpos
1878                     ,matrix[3],"ONLY",parCOL,kNparCOL);
1879   gMC->Gsposp("UTC1",6+9*kNlayer,"UTI3",-xpos,ypos,zpos
1880                     ,matrix[3],"ONLY",parCOL,kNparCOL);
1881   // Front of supermodules
1882   xpos      = fgkCwidth[5]/2.0 - kCOLhgt/2.0 - 1.3;
1883   ypos      = 0.0;
1884   zpos      = fgkSheight/2.0 - fgkSMpltT - 0.4 - kCOLwid/2.0;
1885   parCOL[0] = kCOLwid   /2.0;
1886   parCOL[1] = fgkFlength/2.0;
1887   parCOL[2] = kCOLhgt   /2.0;
1888   gMC->Gsposp("UTC3",6+2*kNlayer,"UTF1", xpos,ypos,zpos
1889                     ,matrix[3],"ONLY",parCOL,kNparCOL);
1890   gMC->Gsposp("UTC3",6+3*kNlayer,"UTF1",-xpos,ypos,zpos
1891                     ,matrix[3],"ONLY",parCOL,kNparCOL);
1892   gMC->Gsposp("UTC3",6+4*kNlayer,"UTF2", xpos,ypos,zpos
1893                     ,matrix[3],"ONLY",parCOL,kNparCOL);
1894   gMC->Gsposp("UTC3",6+5*kNlayer,"UTF2",-xpos,ypos,zpos
1895                     ,matrix[3],"ONLY",parCOL,kNparCOL);
1896   // In baby frame
1897   xpos      = fgkCwidth[5]/2.0 - kCOLhgt/2.0 - 3.1;
1898   ypos      = kBBSdz/2.0 - kBBMdz/2.0;
1899   zpos      = fgkSheight/2.0 - fgkSMpltT - 0.4 - kCOLwid/2.0;
1900   parCOL[0] = kCOLwid/2.0;
1901   parCOL[1] = kBBSdz /2.0;
1902   parCOL[2] = kCOLhgt/2.0;
1903   gMC->Gsposp("UTC3",6+6*kNlayer,"BBTRD", xpos, ypos, zpos
1904                     ,matrix[3],"ONLY",parCOL,kNparCOL);
1905   gMC->Gsposp("UTC3",6+7*kNlayer,"BBTRD",-xpos, ypos, zpos
1906                     ,matrix[3],"ONLY",parCOL,kNparCOL);
1907   // In back frame
1908   xpos      = fgkCwidth[5]/2.0 - kCOLhgt/2.0 - 1.3;
1909   ypos      = -kBFSdz/2.0 + kBFMdz/2.0;
1910   zpos      = fgkSheight/2.0 - fgkSMpltT - 0.4 - kCOLwid/2.0;
1911   parCOL[0] = kCOLwid/2.0;
1912   parCOL[1] = kBFSdz /2.0;
1913   parCOL[2] = kCOLhgt/2.0;
1914   gMC->Gsposp("UTC3",6+6*kNlayer,"BFTRD", xpos,ypos,zpos
1915                     ,matrix[3],"ONLY",parCOL,kNparCOL);
1916   gMC->Gsposp("UTC3",6+7*kNlayer,"BFTRD",-xpos,ypos,zpos
1917                     ,matrix[3],"ONLY",parCOL,kNparCOL);
1918
1919   //
1920   // The power bus bars
1921   //
1922
1923   const Float_t kPWRwid  =  0.6;
1924   // Increase the height of the power bus bars to take into
1925   // account the material of additional cables, etc.
1926   const Float_t kPWRhgtA =  5.0 + 0.2;
1927   const Float_t kPWRhgtB =  5.0;
1928   const Float_t kPWRposx =  2.0;
1929   const Float_t kPWRposz =  0.1;
1930   const Int_t   kNparPWR =  3;
1931   Float_t parPWR[kNparPWR];
1932   parPWR[0] = 0.0;
1933   parPWR[1] = 0.0;
1934   parPWR[2] = 0.0;
1935   gMC->Gsvolu("UTP1","BOX ",idtmed[1325-1],parPWR,0);
1936   gMC->Gsvolu("UTP3","BOX ",idtmed[1325-1],parPWR,0);
1937
1938   for (ilayer = 1; ilayer < kNlayer; ilayer++) {
1939
1940     // Along the chambers
1941     xpos      = fgkCwidth[ilayer]/2.0 + kPWRwid/2.0 + kPWRposx;
1942     ypos      = 0.0;
1943     zpos      = fgkVrocsm + fgkSMpltT - fgkCalZpos
1944               + kPWRhgtA/2.0 - fgkSheight/2.0 + kPWRposz
1945               + ilayer * (fgkCH + fgkVspace);
1946     parPWR[0] = kPWRwid   /2.0;
1947     parPWR[1] = fgkSlength/2.0;
1948     parPWR[2] = kPWRhgtA  /2.0;
1949     gMC->Gsposp("UTP1",ilayer          ,"UTI1", xpos,ypos,zpos
1950                       ,matrix[0],"ONLY",parPWR,kNparPWR);
1951     gMC->Gsposp("UTP1",ilayer+  kNlayer,"UTI1",-xpos,ypos,zpos
1952                       ,matrix[1],"ONLY",parPWR,kNparPWR);
1953     gMC->Gsposp("UTP1",ilayer+6*kNlayer,"UTI2", xpos,ypos,zpos
1954                       ,matrix[0],"ONLY",parPWR,kNparPWR);
1955     gMC->Gsposp("UTP1",ilayer+7*kNlayer,"UTI2",-xpos,ypos,zpos
1956                       ,matrix[1],"ONLY",parPWR,kNparPWR);
1957     gMC->Gsposp("UTP1",ilayer+8*kNlayer,"UTI3", xpos,ypos,zpos
1958                       ,matrix[0],"ONLY",parPWR,kNparPWR);
1959     gMC->Gsposp("UTP1",ilayer+9*kNlayer,"UTI3",-xpos,ypos,zpos
1960                       ,matrix[1],"ONLY",parPWR,kNparPWR);
1961
1962     // Front of supermodule
1963     xpos      = fgkCwidth[ilayer]/2.0 + kPWRwid/2.0 + kPWRposx;
1964     ypos      = 0.0;
1965     zpos      = fgkVrocsm + fgkSMpltT - fgkCalZpos
1966               + kPWRhgtA/2.0 - fgkSheight/2.0 + kPWRposz
1967               + ilayer * (fgkCH + fgkVspace);
1968     parPWR[0] = kPWRwid   /2.0;
1969     parPWR[1] = fgkFlength/2.0;
1970     parPWR[2] = kPWRhgtA  /2.0;
1971     gMC->Gsposp("UTP3",ilayer+2*kNlayer,"UTF1", xpos,ypos,zpos
1972                       ,matrix[0],"ONLY",parPWR,kNparPWR);
1973     gMC->Gsposp("UTP3",ilayer+3*kNlayer,"UTF1",-xpos,ypos,zpos
1974                       ,matrix[1],"ONLY",parPWR,kNparPWR);
1975     gMC->Gsposp("UTP3",ilayer+4*kNlayer,"UTF2", xpos,ypos,zpos
1976                       ,matrix[0],"ONLY",parPWR,kNparPWR);
1977     gMC->Gsposp("UTP3",ilayer+5*kNlayer,"UTF2",-xpos,ypos,zpos
1978                       ,matrix[1],"ONLY",parPWR,kNparPWR);
1979
1980   }
1981
1982   for (ilayer = 1; ilayer < kNlayer; ilayer++) {
1983
1984     // In baby frame
1985     xpos      = fgkCwidth[ilayer]/2.0 + kPWRwid/2.0 + kPWRposx - 2.5;
1986     ypos      = kBBSdz/2.0 - kBBMdz/2.0;
1987     zpos      = fgkVrocsm + fgkSMpltT - fgkCalZpos
1988               + kPWRhgtB/2.0 - fgkSheight/2.0 + kPWRposz
1989               + ilayer * (fgkCH + fgkVspace);
1990     parPWR[0] = kPWRwid /2.0;
1991     parPWR[1] = kBBSdz  /2.0;
1992     parPWR[2] = kPWRhgtB/2.0;
1993     gMC->Gsposp("UTP3",ilayer+6*kNlayer,"BBTRD", xpos, ypos, zpos
1994                       ,matrix[0],"ONLY",parPWR,kNparPWR);
1995     gMC->Gsposp("UTP3",ilayer+7*kNlayer,"BBTRD",-xpos, ypos, zpos
1996                       ,matrix[1],"ONLY",parPWR,kNparPWR);
1997
1998   }
1999
2000   for (ilayer = 1; ilayer < kNlayer; ilayer++) {
2001
2002     // In back frame
2003     xpos      = fgkCwidth[ilayer]/2.0 + kPWRwid/2.0 + kPWRposx - 0.3;
2004     ypos      = -kBFSdz/2.0 + kBFMdz/2.0;
2005     zpos      = fgkVrocsm + fgkSMpltT - fgkCalZpos
2006               + kPWRhgtB/2.0 - fgkSheight/2.0 + kPWRposz
2007               + ilayer * (fgkCH + fgkVspace);
2008     parPWR[0] = kPWRwid /2.0;
2009     parPWR[1] = kBFSdz  /2.0;
2010     parPWR[2] = kPWRhgtB/2.0;
2011     gMC->Gsposp("UTP3",ilayer+8*kNlayer,"BFTRD", xpos,ypos,zpos
2012                       ,matrix[0],"ONLY",parPWR,kNparPWR);
2013     gMC->Gsposp("UTP3",ilayer+9*kNlayer,"BFTRD",-xpos,ypos,zpos
2014                       ,matrix[1],"ONLY",parPWR,kNparPWR);
2015
2016   }
2017
2018   // The upper most layer
2019   // Along the chambers
2020   xpos      = fgkCwidth[5]/2.0 + kPWRhgtB/2.0 - 1.3;
2021   ypos      = 0.0;
2022   zpos      = fgkSheight/2.0 - fgkSMpltT - 0.6 - kPWRwid/2.0;
2023   parPWR[0] = kPWRwid   /2.0;
2024   parPWR[1] = fgkSlength/2.0;
2025   parPWR[2] = kPWRhgtB  /2.0 ;
2026   gMC->Gsposp("UTP1",6          ,"UTI1", xpos,ypos,zpos
2027                     ,matrix[3],"ONLY",parPWR,kNparPWR);
2028   gMC->Gsposp("UTP1",6+  kNlayer,"UTI1",-xpos,ypos,zpos
2029                     ,matrix[3],"ONLY",parPWR,kNparPWR);
2030   gMC->Gsposp("UTP1",6+6*kNlayer,"UTI2", xpos,ypos,zpos
2031                     ,matrix[3],"ONLY",parPWR,kNparPWR);
2032   gMC->Gsposp("UTP1",6+7*kNlayer,"UTI2",-xpos,ypos,zpos
2033                     ,matrix[3],"ONLY",parPWR,kNparPWR);
2034   gMC->Gsposp("UTP1",6+8*kNlayer,"UTI3", xpos,ypos,zpos
2035                     ,matrix[3],"ONLY",parPWR,kNparPWR);
2036   gMC->Gsposp("UTP1",6+9*kNlayer,"UTI3",-xpos,ypos,zpos
2037                     ,matrix[3],"ONLY",parPWR,kNparPWR);
2038   // Front of supermodules
2039   xpos      = fgkCwidth[5]/2.0 + kPWRhgtB/2.0 - 1.3;
2040   ypos      = 0.0;
2041   zpos      = fgkSheight/2.0 - fgkSMpltT - 0.6 - kPWRwid/2.0;
2042   parPWR[0] = kPWRwid   /2.0;
2043   parPWR[1] = fgkFlength/2.0;
2044   parPWR[2] = kPWRhgtB  /2.0;
2045   gMC->Gsposp("UTP3",6+2*kNlayer,"UTF1", xpos,ypos,zpos
2046                     ,matrix[3],"ONLY",parPWR,kNparPWR);
2047   gMC->Gsposp("UTP3",6+3*kNlayer,"UTF1",-xpos,ypos,zpos
2048                     ,matrix[3],"ONLY",parPWR,kNparPWR);
2049   gMC->Gsposp("UTP3",6+4*kNlayer,"UTF2", xpos,ypos,zpos
2050                     ,matrix[3],"ONLY",parPWR,kNparPWR);
2051   gMC->Gsposp("UTP3",6+5*kNlayer,"UTF2",-xpos,ypos,zpos
2052                     ,matrix[3],"ONLY",parPWR,kNparPWR);
2053   // In baby frame
2054   xpos      = fgkCwidth[5]/2.0 + kPWRhgtB/2.0 - 3.0;
2055   ypos      = kBBSdz/2.0 - kBBMdz/2.0;
2056   zpos      = fgkSheight/2.0 - fgkSMpltT - 0.6 - kPWRwid/2.0;
2057   parPWR[0] = kPWRwid /2.0;
2058   parPWR[1] = kBBSdz  /2.0;
2059   parPWR[2] = kPWRhgtB/2.0;
2060   gMC->Gsposp("UTP3",6+6*kNlayer,"BBTRD", xpos, ypos, zpos
2061                     ,matrix[3],"ONLY",parPWR,kNparPWR);
2062   gMC->Gsposp("UTP3",6+7*kNlayer,"BBTRD",-xpos, ypos, zpos
2063                     ,matrix[3],"ONLY",parPWR,kNparPWR);
2064   // In back frame
2065   xpos      = fgkCwidth[5]/2.0 + kPWRhgtB/2.0 - 1.3;
2066   ypos      = -kBFSdz/2.0 + kBFMdz/2.0;
2067   zpos      = fgkSheight/2.0 - fgkSMpltT - 0.6 - kPWRwid/2.0;
2068   parPWR[0] = kPWRwid /2.0;
2069   parPWR[1] = kBFSdz  /2.0;
2070   parPWR[2] = kPWRhgtB/2.0;
2071   gMC->Gsposp("UTP3",6+8*kNlayer,"BFTRD", xpos,ypos,zpos
2072                     ,matrix[3],"ONLY",parPWR,kNparPWR);
2073   gMC->Gsposp("UTP3",6+9*kNlayer,"BFTRD",-xpos,ypos,zpos
2074                     ,matrix[3],"ONLY",parPWR,kNparPWR);
2075
2076   //
2077   // The gas tubes connecting the chambers in the super modules with holes
2078   // Material: Stainless steel
2079   //
2080
2081   parTube[0] = 0.0;
2082   parTube[1] = 2.2/2.0;
2083   parTube[2] = fgkClength[5][2]/2.0 - fgkHspace/2.0;
2084   gMC->Gsvolu("UTG1","TUBE",idtmed[1308-1],parTube,kNparTube);
2085   parTube[0] = 0.0;
2086   parTube[1] = 2.1/2.0;
2087   parTube[2] = fgkClength[5][2]/2.0 - fgkHspace/2.0;
2088   gMC->Gsvolu("UTG2","TUBE",idtmed[1309-1],parTube,kNparTube);
2089   xpos  = 0.0;
2090   ypos  = 0.0;
2091   zpos  = 0.0;
2092   gMC->Gspos("UTG2",1,"UTG1",xpos,ypos,zpos,0,"ONLY");
2093   for (ilayer = 0; ilayer < kNlayer; ilayer++) {
2094     xpos      = fgkCwidth[ilayer]/2.0 + kCOLwid/2.0 - 1.5;
2095     ypos      = 0.0;
2096     zpos      = fgkVrocsm + fgkSMpltT + kCOLhgt/2.0 - fgkSheight/2.0 + 5.0
2097               + ilayer * (fgkCH + fgkVspace);
2098     gMC->Gspos("UTG1",1+ilayer,"UTI3", xpos, ypos, zpos,matrix[4],"ONLY");
2099     gMC->Gspos("UTG1",7+ilayer,"UTI3",-xpos, ypos, zpos,matrix[4],"ONLY");
2100   }
2101
2102   //
2103   // The volumes for the services at the chambers
2104   //
2105
2106   const Int_t kNparServ = 3;
2107   Float_t parServ[kNparServ];
2108
2109   for (istack = 0; istack < kNstack; istack++) {
2110     for (ilayer = 0; ilayer < kNlayer; ilayer++) {
2111
2112       Int_t iDet = GetDetectorSec(ilayer,istack);
2113
2114       sprintf(cTagV,"UU%02d",iDet);
2115       parServ[0] = fgkCwidth[ilayer]         /2.0;
2116       parServ[1] = fgkClength[ilayer][istack]/2.0 - fgkHspace/2.0;
2117       parServ[2] = fgkCsvH                 /2.0;
2118       gMC->Gsvolu(cTagV,"BOX",idtmed[1302-1],parServ,kNparServ);
2119
2120     }
2121   }
2122
2123   //
2124   // The cooling pipes inside the service volumes
2125   //
2126
2127   // The cooling pipes
2128   parTube[0] =  0.0;
2129   parTube[1] =  0.0;
2130   parTube[2] =  0.0;
2131   gMC->Gsvolu("UTCP","TUBE",idtmed[1324-1],parTube,0);
2132   // The cooling water
2133   parTube[0] =  0.0;
2134   parTube[1] =  0.2/2.0;
2135   parTube[2] = -1.0;
2136   gMC->Gsvolu("UTCH","TUBE",idtmed[1314-1],parTube,kNparTube);
2137   // Water inside the cooling pipe
2138   xpos = 0.0;
2139   ypos = 0.0;
2140   zpos = 0.0;
2141   gMC->Gspos("UTCH",1,"UTCP",xpos,ypos,zpos,0,"ONLY");
2142
2143   // Position the cooling pipes in the mother volume
2144   for (istack = 0; istack < kNstack; istack++) {
2145     for (ilayer = 0; ilayer < kNlayer; ilayer++) {
2146       Int_t   iDet    = GetDetectorSec(ilayer,istack);
2147       Int_t   iCopy   = GetDetector(ilayer,istack,0) * 100;
2148       Int_t   nMCMrow = GetRowMax(ilayer,istack,0);
2149       Float_t ySize   = (GetChamberLength(ilayer,istack) - 2.0*fgkRpadW)
2150                       / ((Float_t) nMCMrow);
2151       sprintf(cTagV,"UU%02d",iDet);
2152       for (Int_t iMCMrow = 0; iMCMrow < nMCMrow; iMCMrow++) {
2153         xpos   = 0.0;
2154         ypos   = (0.5 + iMCMrow) * ySize
2155                - fgkClength[ilayer][istack]/2.0 + fgkHspace/2.0;
2156         zpos   = 0.0 + 0.742/2.0;
2157         // The cooling pipes
2158         parTube[0] = 0.0;
2159         parTube[1] = 0.3/2.0; // Thickness of the cooling pipes
2160         parTube[2] = fgkCwidth[ilayer]/2.0;
2161         gMC->Gsposp("UTCP",iCopy+iMCMrow,cTagV,xpos,ypos,zpos
2162                           ,matrix[2],"ONLY",parTube,kNparTube);
2163       }
2164     }
2165   }
2166
2167   //
2168   // The power lines
2169   //
2170
2171   // The copper power lines
2172   parTube[0] = 0.0;
2173   parTube[1] = 0.0;
2174   parTube[2] = 0.0;
2175   gMC->Gsvolu("UTPL","TUBE",idtmed[1305-1],parTube,0);
2176
2177   // Position the power lines in the mother volume
2178   for (istack = 0; istack < kNstack; istack++) {
2179     for (ilayer = 0; ilayer < kNlayer; ilayer++) {
2180       Int_t   iDet    = GetDetectorSec(ilayer,istack);
2181       Int_t   iCopy   = GetDetector(ilayer,istack,0) * 100;
2182       Int_t   nMCMrow = GetRowMax(ilayer,istack,0);
2183       Float_t ySize   = (GetChamberLength(ilayer,istack) - 2.0*fgkRpadW)
2184                       / ((Float_t) nMCMrow);
2185       sprintf(cTagV,"UU%02d",iDet);
2186       for (Int_t iMCMrow = 0; iMCMrow < nMCMrow; iMCMrow++) {
2187         xpos       = 0.0;
2188         ypos       = (0.5 + iMCMrow) * ySize - 1.0
2189                    - fgkClength[ilayer][istack]/2.0 + fgkHspace/2.0;
2190         zpos       = -0.4 + 0.742/2.0;
2191         parTube[0] = 0.0;
2192         parTube[1] = 0.2/2.0; // Thickness of the power lines
2193         parTube[2] = fgkCwidth[ilayer]/2.0;
2194         gMC->Gsposp("UTPL",iCopy+iMCMrow,cTagV,xpos,ypos,zpos
2195                           ,matrix[2],"ONLY",parTube,kNparTube);
2196       }
2197     }
2198   }
2199
2200   //
2201   // The MCMs
2202   //
2203
2204   const Float_t kMCMx    = 3.0;
2205   const Float_t kMCMy    = 3.0;
2206   const Float_t kMCMz    = 0.3;
2207
2208   const Float_t kMCMpcTh = 0.1;
2209   const Float_t kMCMcuTh = 0.0025;
2210   const Float_t kMCMsiTh = 0.03;
2211   const Float_t kMCMcoTh = 0.04;
2212
2213   // The mother volume for the MCMs (air)
2214   const Int_t kNparMCM = 3;
2215   Float_t parMCM[kNparMCM];
2216   parMCM[0] = kMCMx   /2.0;
2217   parMCM[1] = kMCMy   /2.0;
2218   parMCM[2] = kMCMz   /2.0;
2219   gMC->Gsvolu("UMCM","BOX",idtmed[1302-1],parMCM,kNparMCM);
2220
2221   // The MCM carrier G10 layer
2222   parMCM[0] = kMCMx   /2.0;
2223   parMCM[1] = kMCMy   /2.0;
2224   parMCM[2] = kMCMpcTh/2.0;
2225   gMC->Gsvolu("UMC1","BOX",idtmed[1319-1],parMCM,kNparMCM);
2226   // The MCM carrier Cu layer
2227   parMCM[0] = kMCMx   /2.0;
2228   parMCM[1] = kMCMy   /2.0;
2229   parMCM[2] = kMCMcuTh/2.0;
2230   gMC->Gsvolu("UMC2","BOX",idtmed[1318-1],parMCM,kNparMCM);
2231   // The silicon of the chips
2232   parMCM[0] = kMCMx   /2.0;
2233   parMCM[1] = kMCMy   /2.0;
2234   parMCM[2] = kMCMsiTh/2.0;
2235   gMC->Gsvolu("UMC3","BOX",idtmed[1320-1],parMCM,kNparMCM);
2236   // The aluminum of the cooling plates
2237   parMCM[0] = kMCMx   /2.0;
2238   parMCM[1] = kMCMy   /2.0;
2239   parMCM[2] = kMCMcoTh/2.0;
2240   gMC->Gsvolu("UMC4","BOX",idtmed[1324-1],parMCM,kNparMCM);
2241
2242   // Put the MCM material inside the MCM mother volume
2243   xpos  =  0.0;
2244   ypos  =  0.0;
2245   zpos  = -kMCMz   /2.0 + kMCMpcTh/2.0;
2246   gMC->Gspos("UMC1",1,"UMCM",xpos,ypos,zpos,0,"ONLY");
2247   zpos +=  kMCMpcTh/2.0 + kMCMcuTh/2.0;
2248   gMC->Gspos("UMC2",1,"UMCM",xpos,ypos,zpos,0,"ONLY");
2249   zpos +=  kMCMcuTh/2.0 + kMCMsiTh/2.0;
2250   gMC->Gspos("UMC3",1,"UMCM",xpos,ypos,zpos,0,"ONLY");
2251   zpos +=  kMCMsiTh/2.0 + kMCMcoTh/2.0;
2252   gMC->Gspos("UMC4",1,"UMCM",xpos,ypos,zpos,0,"ONLY");
2253
2254   // Position the MCMs in the mother volume
2255   for (istack = 0; istack < kNstack; istack++) {
2256     for (ilayer = 0; ilayer < kNlayer; ilayer++) {
2257       Int_t   iDet    = GetDetectorSec(ilayer,istack);
2258       Int_t   iCopy   = GetDetector(ilayer,istack,0) * 1000;
2259       Int_t   nMCMrow = GetRowMax(ilayer,istack,0);
2260       Float_t ySize   = (GetChamberLength(ilayer,istack) - 2.0*fgkRpadW)
2261                       / ((Float_t) nMCMrow);
2262       Int_t   nMCMcol = 8;
2263       Float_t xSize   = (GetChamberWidth(ilayer)         - 2.0*fgkCpadW)
2264                       / ((Float_t) nMCMcol + 6);             // Introduce 6 gaps
2265       Int_t   iMCM[8] = {  1,  2,  3,  5,  8,  9, 10, 12 };  // 0..7 MCM + 6 gap structure
2266       sprintf(cTagV,"UU%02d",iDet);
2267       for (Int_t iMCMrow = 0; iMCMrow < nMCMrow; iMCMrow++) {
2268         for (Int_t iMCMcol = 0; iMCMcol < nMCMcol; iMCMcol++) {
2269           xpos      = (0.5 + iMCM[iMCMcol]) * xSize + 1.0
2270                     - fgkCwidth[ilayer]/2.0;
2271           ypos      = (0.5 + iMCMrow) * ySize + 1.0
2272                     - fgkClength[ilayer][istack]/2.0 + fgkHspace/2.0;
2273           zpos      = -0.4 + 0.742/2.0;
2274           gMC->Gspos("UMCM",iCopy+iMCMrow*10+iMCMcol,cTagV
2275                            ,xpos,ypos,zpos,0,"ONLY");
2276           // Add two additional smaller cooling pipes on top of the MCMs
2277           // to mimic the meandering structure
2278           xpos      = (0.5 + iMCM[iMCMcol]) * xSize + 1.0
2279                     - fgkCwidth[ilayer]/2.0;
2280           ypos      = (0.5 + iMCMrow) * ySize
2281                     - fgkClength[ilayer][istack]/2.0 + fgkHspace/2.0;
2282           zpos      = 0.0 + 0.742/2.0;
2283           parTube[0] = 0.0;
2284           parTube[1] = 0.3/2.0; // Thickness of the cooling pipes
2285           parTube[2] = kMCMx/2.0;
2286           gMC->Gsposp("UTCP",iCopy+iMCMrow*10+iMCMcol+ 50,cTagV
2287                             ,xpos,ypos+1.0,zpos
2288                             ,matrix[2],"ONLY",parTube,kNparTube);
2289           gMC->Gsposp("UTCP",iCopy+iMCMrow*10+iMCMcol+500,cTagV
2290                             ,xpos,ypos+2.0,zpos
2291                             ,matrix[2],"ONLY",parTube,kNparTube);
2292
2293         }
2294       }
2295
2296     }
2297   }
2298
2299   //
2300   // The DCS boards
2301   //
2302
2303   const Float_t kDCSx    =  9.0;
2304   const Float_t kDCSy    = 14.5;
2305   const Float_t kDCSz    =  0.3;
2306
2307   const Float_t kDCSpcTh =  0.15;
2308   const Float_t kDCScuTh =  0.01;
2309   const Float_t kDCScoTh =  0.04;
2310
2311   // The mother volume for the DCSs (air)
2312   const Int_t kNparDCS = 3;
2313   Float_t parDCS[kNparDCS];
2314   parDCS[0] = kDCSx   /2.0;
2315   parDCS[1] = kDCSy   /2.0;
2316   parDCS[2] = kDCSz   /2.0;
2317   gMC->Gsvolu("UDCS","BOX",idtmed[1302-1],parDCS,kNparDCS);
2318
2319   // The DCS carrier G10 layer
2320   parDCS[0] = kDCSx   /2.0;
2321   parDCS[1] = kDCSy   /2.0;
2322   parDCS[2] = kDCSpcTh/2.0;
2323   gMC->Gsvolu("UDC1","BOX",idtmed[1319-1],parDCS,kNparDCS);
2324   // The DCS carrier Cu layer
2325   parDCS[0] = kDCSx   /2.0;
2326   parDCS[1] = kDCSy   /2.0;
2327   parDCS[2] = kDCScuTh/2.0;
2328   gMC->Gsvolu("UDC2","BOX",idtmed[1318-1],parDCS,kNparDCS);
2329   // The aluminum of the cooling plates
2330   parDCS[0] = 5.0     /2.0;
2331   parDCS[1] = 5.0     /2.0;
2332   parDCS[2] = kDCScoTh/2.0;
2333   gMC->Gsvolu("UDC3","BOX",idtmed[1324-1],parDCS,kNparDCS);
2334
2335   // Put the DCS material inside the DCS mother volume
2336   xpos  =  0.0;
2337   ypos  =  0.0;
2338   zpos  = -kDCSz   /2.0 + kDCSpcTh/2.0;
2339   gMC->Gspos("UDC1",1,"UDCS",xpos,ypos,zpos,0,"ONLY");
2340   zpos +=  kDCSpcTh/2.0 + kDCScuTh/2.0;
2341   gMC->Gspos("UDC2",1,"UDCS",xpos,ypos,zpos,0,"ONLY");
2342   zpos +=  kDCScuTh/2.0 + kDCScoTh/2.0;
2343   gMC->Gspos("UDC3",1,"UDCS",xpos,ypos,zpos,0,"ONLY");
2344
2345   // Put the DCS board in the chamber services mother volume
2346   for (istack = 0; istack < kNstack; istack++) {
2347     for (ilayer = 0; ilayer < kNlayer; ilayer++) {
2348       Int_t   iDet    = GetDetectorSec(ilayer,istack);
2349       Int_t   iCopy   = iDet + 1;
2350       xpos =  fgkCwidth[ilayer]/2.0 - 1.9 * (GetChamberLength(ilayer,istack) - 2.0*fgkRpadW)
2351                                         / ((Float_t) GetRowMax(ilayer,istack,0));
2352       ypos =  0.05 * fgkClength[ilayer][istack];
2353       zpos =  kDCSz/2.0 - fgkCsvH/2.0;
2354       sprintf(cTagV,"UU%02d",iDet);
2355       gMC->Gspos("UDCS",iCopy,cTagV,xpos,ypos,zpos,0,"ONLY");
2356     }
2357   }
2358
2359   //
2360   // The ORI boards
2361   //
2362
2363   const Float_t kORIx    =  4.2;
2364   const Float_t kORIy    = 13.5;
2365   const Float_t kORIz    =  0.3;
2366
2367   const Float_t kORIpcTh =  0.15;
2368   const Float_t kORIcuTh =  0.01;
2369   const Float_t kORIcoTh =  0.04;
2370
2371   // The mother volume for the ORIs (air)
2372   const Int_t kNparORI = 3;
2373   Float_t parORI[kNparORI];
2374   parORI[0] = kORIx   /2.0;
2375   parORI[1] = kORIy   /2.0;
2376   parORI[2] = kORIz   /2.0;
2377   gMC->Gsvolu("UORI","BOX",idtmed[1302-1],parORI,kNparORI);
2378
2379   // The ORI carrier G10 layer
2380   parORI[0] = kORIx   /2.0;
2381   parORI[1] = kORIy   /2.0;
2382   parORI[2] = kORIpcTh/2.0;
2383   gMC->Gsvolu("UOR1","BOX",idtmed[1319-1],parORI,kNparORI);
2384   // The ORI carrier Cu layer
2385   parORI[0] = kORIx   /2.0;
2386   parORI[1] = kORIy   /2.0;
2387   parORI[2] = kORIcuTh/2.0;
2388   gMC->Gsvolu("UOR2","BOX",idtmed[1318-1],parORI,kNparORI);
2389   // The aluminum of the cooling plates
2390   parORI[0] = kORIx   /2.0;
2391   parORI[1] = kORIy   /2.0;
2392   parORI[2] = kORIcoTh/2.0;
2393   gMC->Gsvolu("UOR3","BOX",idtmed[1324-1],parORI,kNparORI);
2394
2395   // Put the ORI material inside the ORI mother volume
2396   xpos  =  0.0;
2397   ypos  =  0.0;
2398   zpos  = -kORIz   /2.0 + kORIpcTh/2.0;
2399   gMC->Gspos("UOR1",1,"UORI",xpos,ypos,zpos,0,"ONLY");
2400   zpos +=  kORIpcTh/2.0 + kORIcuTh/2.0;
2401   gMC->Gspos("UOR2",1,"UORI",xpos,ypos,zpos,0,"ONLY");
2402   zpos +=  kORIcuTh/2.0 + kORIcoTh/2.0;
2403   gMC->Gspos("UOR3",1,"UORI",xpos,ypos,zpos,0,"ONLY");
2404
2405   // Put the ORI board in the chamber services mother volume
2406   for (istack = 0; istack < kNstack; istack++) {
2407     for (ilayer = 0; ilayer < kNlayer; ilayer++) {
2408       Int_t   iDet    = GetDetectorSec(ilayer,istack);
2409       Int_t   iCopy   = iDet + 1;
2410       xpos =  fgkCwidth[ilayer]/2.0 - 1.92 * (GetChamberLength(ilayer,istack) - 2.0*fgkRpadW)
2411                                         / ((Float_t) GetRowMax(ilayer,istack,0));
2412       ypos = -16.0;
2413       zpos =  kORIz/2.0 - fgkCsvH/2.0;
2414       sprintf(cTagV,"UU%02d",iDet);
2415       gMC->Gspos("UORI",iCopy      ,cTagV,xpos,ypos,zpos,0,"ONLY");
2416       xpos = -fgkCwidth[ilayer]/2.0 + 3.8 * (GetChamberLength(ilayer,istack) - 2.0*fgkRpadW)
2417                                         / ((Float_t) GetRowMax(ilayer,istack,0));
2418       ypos = -16.0;
2419       zpos =  kORIz/2.0 - fgkCsvH/2.0;
2420       sprintf(cTagV,"UU%02d",iDet);
2421       gMC->Gspos("UORI",iCopy+kNdet,cTagV,xpos,ypos,zpos,0,"ONLY");
2422     }
2423   }
2424
2425   //
2426   // Services in front of the super module
2427   //
2428
2429   // Gas in-/outlet pipes (INOX)
2430   parTube[0] = 0.0;
2431   parTube[1] = 0.0;
2432   parTube[2] = 0.0;
2433   gMC->Gsvolu("UTG3","TUBE",idtmed[1308-1],parTube,0);
2434   // The gas inside the in-/outlet pipes (Xe)
2435   parTube[0] =  0.0;
2436   parTube[1] =  1.2/2.0;
2437   parTube[2] = -1.0;
2438   gMC->Gsvolu("UTG4","TUBE",idtmed[1309-1],parTube,kNparTube);
2439   xpos = 0.0;
2440   ypos = 0.0;
2441   zpos = 0.0;
2442   gMC->Gspos("UTG4",1,"UTG3",xpos,ypos,zpos,0,"ONLY");
2443   for (ilayer = 0; ilayer < kNlayer-1; ilayer++) {
2444     xpos       = 0.0;
2445     ypos       = fgkClength[ilayer][2]/2.0
2446                + fgkClength[ilayer][1]
2447                + fgkClength[ilayer][0];
2448     zpos       = 9.0 - fgkSheight/2.0
2449                + ilayer * (fgkCH + fgkVspace);
2450     parTube[0] = 0.0;
2451     parTube[1] = 1.5/2.0;
2452     parTube[2] = fgkCwidth[ilayer]/2.0 - 2.5;
2453     gMC->Gsposp("UTG3",ilayer+1          ,"UTI1", xpos, ypos, zpos
2454                       ,matrix[2],"ONLY",parTube,kNparTube);
2455     gMC->Gsposp("UTG3",ilayer+1+1*kNlayer,"UTI1", xpos,-ypos, zpos
2456                       ,matrix[2],"ONLY",parTube,kNparTube);
2457     gMC->Gsposp("UTG3",ilayer+1+2*kNlayer,"UTI2", xpos, ypos, zpos
2458                       ,matrix[2],"ONLY",parTube,kNparTube);
2459     gMC->Gsposp("UTG3",ilayer+1+3*kNlayer,"UTI2", xpos,-ypos, zpos
2460                       ,matrix[2],"ONLY",parTube,kNparTube);
2461     gMC->Gsposp("UTG3",ilayer+1+4*kNlayer,"UTI3", xpos, ypos, zpos
2462                       ,matrix[2],"ONLY",parTube,kNparTube);
2463     gMC->Gsposp("UTG3",ilayer+1+5*kNlayer,"UTI3", xpos,-ypos, zpos
2464                       ,matrix[2],"ONLY",parTube,kNparTube);
2465   }
2466
2467   // Gas distribution box
2468   parBox[0] = 14.50/2.0;
2469   parBox[1] =  4.52/2.0;
2470   parBox[2] =  5.00/2.0;
2471   gMC->Gsvolu("UTGD","BOX ",idtmed[1308-1],parBox,kNparBox);
2472   parBox[0] = 14.50/2.0;
2473   parBox[1] =  4.00/2.0;
2474   parBox[2] =  4.40/2.0;
2475   gMC->Gsvolu("UTGI","BOX ",idtmed[1309-1],parBox,kNparBox);
2476   parTube[0] = 0.0;
2477   parTube[1] = 4.0/2.0;
2478   parTube[2] = 8.0/2.0;
2479   gMC->Gsvolu("UTGT","TUBE",idtmed[1308-1],parTube,kNparTube);
2480   parTube[0] = 0.0;
2481   parTube[1] = 3.4/2.0;
2482   parTube[2] = 8.0/2.0;
2483   gMC->Gsvolu("UTGG","TUBE",idtmed[1309-1],parTube,kNparTube);
2484   xpos = 0.0;
2485   ypos = 0.0;
2486   zpos = 0.0;
2487   gMC->Gspos("UTGI",1,"UTGD",xpos,ypos,zpos,        0,"ONLY");
2488   gMC->Gspos("UTGG",1,"UTGT",xpos,ypos,zpos,        0,"ONLY");
2489   xpos = 0.0;
2490   ypos = 0.0;
2491   zpos = 0.0;
2492   gMC->Gspos("UTGD",1,"UTF1",xpos,ypos,zpos,        0,"ONLY");
2493   xpos =  -3.0;
2494   ypos =   0.0;
2495   zpos =   6.5;
2496   gMC->Gspos("UTGT",1,"UTF1",xpos,ypos,zpos,        0,"ONLY");
2497   xpos = -11.25;
2498   ypos =   0.0;
2499   zpos =   0.5;
2500   gMC->Gspos("UTGT",3,"UTF1",xpos,ypos,zpos,matrix[2],"ONLY");
2501   xpos =  11.25;
2502   ypos =   0.0;
2503   zpos =   0.5;
2504   gMC->Gspos("UTGT",5,"UTF1",xpos,ypos,zpos,matrix[2],"ONLY");
2505
2506   // Cooling manifolds
2507   parBox[0]  =  5.0/2.0;
2508   parBox[1]  = 23.0/2.0;
2509   parBox[2]  = 70.0/2.0;
2510   gMC->Gsvolu("UTCM","BOX ",idtmed[1302-1],parBox,kNparBox);
2511   parBox[0]  =  5.0/2.0;
2512   parBox[1]  =  5.0/2.0;
2513   parBox[2]  = 70.0/2.0;
2514   gMC->Gsvolu("UTCA","BOX ",idtmed[1308-1],parBox,kNparBox);
2515   parBox[0]  =  5.0/2.0 - 0.3;
2516   parBox[1]  =  5.0/2.0 - 0.3;
2517   parBox[2]  = 70.0/2.0 - 0.3;
2518   gMC->Gsvolu("UTCW","BOX ",idtmed[1314-1],parBox,kNparBox);
2519   xpos       =  0.0;
2520   ypos       =  0.0;
2521   zpos       =  0.0;
2522   gMC->Gspos("UTCW",1,"UTCA", xpos, ypos, zpos,        0,"ONLY");
2523   xpos       =  0.0;
2524   ypos       =  5.0/2.0 - 23.0/2.0;
2525   zpos       =  0.0;
2526   gMC->Gspos("UTCA",1,"UTCM", xpos, ypos, zpos,        0,"ONLY");
2527   parTube[0] =  0.0;
2528   parTube[1] =  3.0/2.0;
2529   parTube[2] = 18.0/2.0;
2530   gMC->Gsvolu("UTCO","TUBE",idtmed[1308-1],parTube,kNparTube);
2531   parTube[0] =  0.0;
2532   parTube[1] =  3.0/2.0 - 0.3;
2533   parTube[2] = 18.0/2.0;
2534   gMC->Gsvolu("UTCL","TUBE",idtmed[1314-1],parTube,kNparTube);
2535   xpos       =  0.0;
2536   ypos       =  0.0;
2537   zpos       =  0.0;
2538   gMC->Gspos("UTCL",1,"UTCO", xpos, ypos, zpos,        0,"ONLY");
2539   xpos       =  0.0;
2540   ypos       =  2.5;
2541   zpos       = -70.0/2.0 + 7.0;
2542   gMC->Gspos("UTCO",1,"UTCM", xpos, ypos, zpos,matrix[4],"ONLY");
2543   zpos      +=  7.0;
2544   gMC->Gspos("UTCO",2,"UTCM", xpos, ypos, zpos,matrix[4],"ONLY");
2545   zpos      +=  7.0;
2546   gMC->Gspos("UTCO",3,"UTCM", xpos, ypos, zpos,matrix[4],"ONLY");
2547   zpos      +=  7.0;
2548   gMC->Gspos("UTCO",4,"UTCM", xpos, ypos, zpos,matrix[4],"ONLY");
2549   zpos      +=  7.0;
2550   gMC->Gspos("UTCO",5,"UTCM", xpos, ypos, zpos,matrix[4],"ONLY");
2551   zpos      +=  7.0;
2552   gMC->Gspos("UTCO",6,"UTCM", xpos, ypos, zpos,matrix[4],"ONLY");
2553   zpos      +=  7.0;
2554   gMC->Gspos("UTCO",7,"UTCM", xpos, ypos, zpos,matrix[4],"ONLY");
2555   zpos      +=  7.0;
2556   gMC->Gspos("UTCO",8,"UTCM", xpos, ypos, zpos,matrix[4],"ONLY");
2557
2558   xpos = 40.0;
2559   ypos =  fgkFlength/2.0 - 23.0/2.0;
2560   zpos =  0.0;
2561   gMC->Gspos("UTCM",1,"UTF1", xpos, ypos, zpos,matrix[0],"ONLY");
2562   gMC->Gspos("UTCM",2,"UTF1",-xpos, ypos, zpos,matrix[1],"ONLY");
2563   gMC->Gspos("UTCM",3,"UTF2", xpos,-ypos, zpos,matrix[5],"ONLY");
2564   gMC->Gspos("UTCM",4,"UTF2",-xpos,-ypos, zpos,matrix[6],"ONLY");
2565
2566   // Power connection boards (Cu)
2567   parBox[0] =  0.5/2.0;
2568   parBox[1] = 15.0/2.0;
2569   parBox[2] =  7.0/2.0;
2570   gMC->Gsvolu("UTPC","BOX ",idtmed[1325-1],parBox,kNparBox);
2571   for (ilayer = 0; ilayer < kNlayer-1; ilayer++) {
2572     xpos      = fgkCwidth[ilayer]/2.0 + kPWRwid/2.0;
2573     ypos      = 0.0;
2574     zpos      = fgkVrocsm + fgkSMpltT + kPWRhgtA/2.0 - fgkSheight/2.0 + kPWRposz
2575               + (ilayer+1) * (fgkCH + fgkVspace);
2576     gMC->Gspos("UTPC",ilayer        ,"UTF1", xpos,ypos,zpos,matrix[0],"ONLY");
2577     gMC->Gspos("UTPC",ilayer+kNlayer,"UTF1",-xpos,ypos,zpos,matrix[1],"ONLY");
2578   }
2579   xpos      = fgkCwidth[5]/2.0 + kPWRhgtA/2.0 - 2.0;
2580   ypos      = 0.0;
2581   zpos      = fgkSheight/2.0 - fgkSMpltT - 2.0;
2582   gMC->Gspos("UTPC",5        ,"UTF1", xpos,ypos,zpos,matrix[3],"ONLY");
2583   gMC->Gspos("UTPC",5+kNlayer,"UTF1",-xpos,ypos,zpos,matrix[3],"ONLY");
2584
2585   // Power connection panel (Al)
2586   parBox[0] = 60.0/2.0;
2587   parBox[1] = 10.0/2.0;
2588   parBox[2] =  3.0/2.0;
2589   gMC->Gsvolu("UTPP","BOX ",idtmed[1301-1],parBox,kNparBox);
2590   xpos      =  0.0;
2591   ypos      =  0.0;
2592   zpos      = 18.0;
2593   gMC->Gspos("UTPP",1,"UTF1", xpos,ypos,zpos,0,"ONLY");
2594
2595   //
2596   // Electronics boxes
2597   //
2598
2599   // Casing (INOX)
2600   parBox[0] = 60.0/2.0;
2601   parBox[1] = 10.0/2.0;
2602   parBox[2] =  6.0/2.0;
2603   gMC->Gsvolu("UTE1","BOX ",idtmed[1308-1],parBox,kNparBox);
2604   // Interior (air)
2605   parBox[0] = parBox[0] - 0.5;
2606   parBox[1] = parBox[1] - 0.5;
2607   parBox[2] = parBox[2] - 0.5;
2608   gMC->Gsvolu("UTE2","BOX ",idtmed[1302-1],parBox,kNparBox);
2609   xpos      = 0.0;
2610   ypos      = 0.0;
2611   zpos      = 0.0;
2612   gMC->Gspos("UTE2",1,"UTE1",xpos,ypos,zpos,0,"ONLY");
2613   xpos      = 0.0;
2614   ypos      =  fgkSlength/2.0 - 10.0/2.0 - 3.0;
2615   zpos      = -fgkSheight/2.0 +  6.0/2.0 + 1.0;
2616   gMC->Gspos("UTE1",1,"UTI1", xpos,ypos,zpos,0,"ONLY");
2617   gMC->Gspos("UTE1",2,"UTI2", xpos,ypos,zpos,0,"ONLY");
2618   gMC->Gspos("UTE1",3,"UTI3", xpos,ypos,zpos,0,"ONLY");
2619
2620   // Casing (INOX)
2621   parBox[0] = 50.0/2.0;
2622   parBox[1] = 15.0/2.0;
2623   parBox[2] = 20.0/2.0;
2624   gMC->Gsvolu("UTE3","BOX ",idtmed[1308-1],parBox,kNparBox);
2625   // Interior (air)
2626   parBox[0] = parBox[0] - 0.5;
2627   parBox[1] = parBox[1] - 0.5;
2628   parBox[2] = parBox[2] - 0.5;
2629   gMC->Gsvolu("UTE4","BOX ",idtmed[1302-1],parBox,kNparBox);
2630   xpos      = 0.0;
2631   ypos      = 0.0;
2632   zpos      = 0.0;
2633   gMC->Gspos("UTE4",1,"UTE3",xpos,ypos,zpos,0,"ONLY");
2634   xpos      = 0.0;
2635   ypos      = -fgkSlength/2.0 + 15.0/2.0 + 3.0;
2636   zpos      = -fgkSheight/2.0 + 20.0/2.0 + 1.0;
2637   gMC->Gspos("UTE3",1,"UTI1", xpos,ypos,zpos,0,"ONLY");
2638   gMC->Gspos("UTE3",2,"UTI2", xpos,ypos,zpos,0,"ONLY");
2639   gMC->Gspos("UTE3",3,"UTI3", xpos,ypos,zpos,0,"ONLY");
2640
2641   // Casing (INOX)
2642   parBox[0] = 20.0/2.0;
2643   parBox[1] =  7.0/2.0;
2644   parBox[2] = 20.0/2.0;
2645   gMC->Gsvolu("UTE5","BOX ",idtmed[1308-1],parBox,kNparBox);
2646   // Interior (air)
2647   parBox[0] = parBox[0] - 0.5;
2648   parBox[1] = parBox[1] - 0.5;
2649   parBox[2] = parBox[2] - 0.5;
2650   gMC->Gsvolu("UTE6","BOX ",idtmed[1302-1],parBox,kNparBox);
2651   xpos      = 0.0;
2652   ypos      = 0.0;
2653   zpos      = 0.0;
2654   gMC->Gspos("UTE6",1,"UTE5",xpos,ypos,zpos,0,"ONLY");
2655   xpos      = 20.0;
2656   ypos      = -fgkSlength/2.0 +  7.0/2.0 + 3.0;
2657   zpos      = 0.0;
2658   gMC->Gspos("UTE5",1,"UTI1", xpos,ypos,zpos,0,"ONLY");
2659   gMC->Gspos("UTE5",2,"UTI2", xpos,ypos,zpos,0,"ONLY");
2660   gMC->Gspos("UTE5",3,"UTI3", xpos,ypos,zpos,0,"ONLY");
2661   xpos      = -xpos;
2662   gMC->Gspos("UTE5",4,"UTI1", xpos,ypos,zpos,0,"ONLY");
2663   gMC->Gspos("UTE5",5,"UTI2", xpos,ypos,zpos,0,"ONLY");
2664   gMC->Gspos("UTE5",6,"UTI3", xpos,ypos,zpos,0,"ONLY");
2665
2666 }
2667
2668 //_____________________________________________________________________________
2669 void AliTRDgeometry::AssembleChamber(Int_t ilayer, Int_t istack)
2670 {
2671   //
2672   // Group volumes UA, UD, UF, UU into an assembly that defines the
2673   // alignable volume of a single readout chamber
2674   //
2675
2676   Char_t  cTagM[100];
2677   Char_t  cTagV[100];
2678
2679   Double_t xpos = 0.0;
2680   Double_t ypos = 0.0;
2681   Double_t zpos = 0.0;
2682
2683   Int_t idet = GetDetectorSec(ilayer,istack);
2684
2685   // Create the assembly for a given ROC
2686   sprintf(cTagM,"UT%02d",idet);
2687   TGeoVolume *roc = new TGeoVolumeAssembly(cTagM);
2688
2689   // Add the lower part of the chamber (aluminum frame),
2690   // including radiator and drift region
2691   xpos = 0.0;
2692   ypos = 0.0;
2693   zpos = fgkCraH/2.0 + fgkCdrH/2.0 - fgkCHsv/2.0;
2694   sprintf(cTagV,"UA%02d",idet);
2695   TGeoVolume *rocA = gGeoManager->GetVolume(cTagV);
2696   roc->AddNode(rocA,1,new TGeoTranslation(xpos,ypos,zpos));
2697
2698   // Add the additional aluminum ledges
2699   xpos = fgkCwidth[ilayer]/2.0 + fgkCalWmod/2.0;
2700   ypos = 0.0;
2701   zpos = fgkCraH + fgkCdrH - fgkCalZpos - fgkCalHmod/2.0 - fgkCHsv/2.0;
2702   sprintf(cTagV,"UZ%02d",idet);
2703   TGeoVolume *rocZ = gGeoManager->GetVolume(cTagV);
2704   roc->AddNode(rocZ,1,new TGeoTranslation( xpos,ypos,zpos));
2705   roc->AddNode(rocZ,2,new TGeoTranslation(-xpos,ypos,zpos));
2706
2707   // Add the additional wacosit ledges
2708   xpos = fgkCwidth[ilayer]/2.0 + fgkCwsW/2.0;
2709   ypos = 0.0;
2710   zpos = fgkCraH + fgkCdrH - fgkCwsH/2.0 - fgkCHsv/2.0;
2711   sprintf(cTagV,"UP%02d",idet);
2712   TGeoVolume *rocP = gGeoManager->GetVolume(cTagV);
2713   roc->AddNode(rocP,1,new TGeoTranslation( xpos,ypos,zpos));
2714   roc->AddNode(rocP,2,new TGeoTranslation(-xpos,ypos,zpos));
2715
2716   // Add the middle part of the chamber (G10 frame),
2717   // including amplification region
2718   xpos = 0.0;
2719   ypos = 0.0;
2720   zpos = fgkCamH/2.0 + fgkCraH + fgkCdrH - fgkCHsv/2.0;
2721   sprintf(cTagV,"UD%02d",idet);
2722   TGeoVolume *rocD = gGeoManager->GetVolume(cTagV);
2723   roc->AddNode(rocD,1,new TGeoTranslation(xpos,ypos,zpos));
2724
2725   // Add the upper part of the chamber (aluminum frame),
2726   // including back panel and FEE
2727   xpos = 0.0;
2728   ypos = 0.0;
2729   zpos = fgkCroH/2.0 + fgkCamH + fgkCraH + fgkCdrH - fgkCHsv/2.0;
2730   sprintf(cTagV,"UF%02d",idet);
2731   TGeoVolume *rocF = gGeoManager->GetVolume(cTagV);
2732   roc->AddNode(rocF,1,new TGeoTranslation(xpos,ypos,zpos));
2733
2734   // Add the volume with services on top of the back panel
2735   xpos = 0.0;
2736   ypos = 0.0;
2737   zpos = fgkCsvH/2.0 + fgkCroH + fgkCamH + fgkCraH + fgkCdrH - fgkCHsv/2.0;
2738   sprintf(cTagV,"UU%02d",idet);
2739   TGeoVolume *rocU = gGeoManager->GetVolume(cTagV);
2740   roc->AddNode(rocU,1,new TGeoTranslation(xpos,ypos,zpos));
2741
2742   // Place the ROC assembly into the super modules
2743   xpos = 0.0;
2744   ypos = 0.0;
2745   ypos  = fgkClength[ilayer][0] + fgkClength[ilayer][1] + fgkClength[ilayer][2]/2.0;
2746   for (Int_t ic = 0; ic < istack; ic++) {
2747     ypos -= fgkClength[ilayer][ic];
2748   }
2749   ypos -= fgkClength[ilayer][istack]/2.0;
2750   zpos  = fgkVrocsm + fgkSMpltT + fgkCHsv/2.0 - fgkSheight/2.0
2751         + ilayer * (fgkCH + fgkVspace);
2752   TGeoVolume *sm1 = gGeoManager->GetVolume("UTI1");
2753   TGeoVolume *sm2 = gGeoManager->GetVolume("UTI2");
2754   TGeoVolume *sm3 = gGeoManager->GetVolume("UTI3");
2755   sm1->AddNode(roc,1,new TGeoTranslation(xpos,ypos,zpos));
2756   sm2->AddNode(roc,1,new TGeoTranslation(xpos,ypos,zpos));
2757   if (istack != 2) {
2758     // w/o middle stack
2759     sm3->AddNode(roc,1,new TGeoTranslation(xpos,ypos,zpos));
2760   }
2761
2762 }
2763
2764 //_____________________________________________________________________________
2765 Bool_t AliTRDgeometry::RotateBack(Int_t det
2766                                 , const Double_t * const loc
2767                                 , Double_t *glb) const
2768 {
2769   //
2770   // Rotates a chambers to transform the corresponding local frame
2771   // coordinates <loc> into the coordinates of the ALICE restframe <glb>.
2772   //
2773
2774   Int_t sector = GetSector(det);
2775
2776   glb[0] = loc[0] * fRotB11[sector] - loc[1] * fRotB12[sector];
2777   glb[1] = loc[0] * fRotB21[sector] + loc[1] * fRotB22[sector];
2778   glb[2] = loc[2];
2779
2780   return kTRUE;
2781
2782 }
2783
2784 //_____________________________________________________________________________
2785 Int_t AliTRDgeometry::GetDetectorSec(Int_t layer, Int_t stack)
2786 {
2787   //
2788   // Convert plane / stack into detector number for one single sector
2789   //
2790
2791   return (layer + stack * fgkNlayer);
2792
2793 }
2794
2795 //_____________________________________________________________________________
2796 Int_t AliTRDgeometry::GetDetector(Int_t layer, Int_t stack, Int_t sector)
2797 {
2798   //
2799   // Convert layer / stack / sector into detector number
2800   //
2801
2802   return (layer + stack * fgkNlayer + sector * fgkNlayer * fgkNstack);
2803
2804 }
2805
2806 //_____________________________________________________________________________
2807 Int_t AliTRDgeometry::GetLayer(Int_t det)
2808 {
2809   //
2810   // Reconstruct the layer number from the detector number
2811   //
2812
2813   return ((Int_t) (det % fgkNlayer));
2814
2815 }
2816
2817 //_____________________________________________________________________________
2818 Int_t AliTRDgeometry::GetStack(Int_t det)
2819 {
2820   //
2821   // Reconstruct the stack number from the detector number
2822   //
2823
2824   return ((Int_t) (det % (fgkNlayer * fgkNstack)) / fgkNlayer);
2825
2826 }
2827
2828 //_____________________________________________________________________________
2829 Int_t AliTRDgeometry::GetStack(Double_t z, Int_t layer)
2830 {
2831   //
2832   // Reconstruct the chamber number from the z position and layer number
2833   //
2834   // The return function has to be protected for positiveness !!
2835   //
2836
2837   if ((layer <          0) ||
2838       (layer >= fgkNlayer)) return -1;
2839
2840   Int_t    istck = fgkNstack;
2841   Double_t zmin;
2842   Double_t zmax;
2843
2844   do {
2845     istck--;
2846     if (istck < 0) break;
2847     AliTRDpadPlane *pp = GetPadPlane(layer,istck);
2848     zmax  = pp->GetRow0();
2849     Int_t nrows = pp->GetNrows();
2850     zmin = zmax -         2 * pp->GetLengthOPad()
2851                 - (nrows-2) * pp->GetLengthIPad()
2852                 - (nrows-1) * pp->GetRowSpacing();
2853   } while((z < zmin) || (z > zmax));
2854
2855   return istck;
2856
2857 }
2858
2859 //_____________________________________________________________________________
2860 Int_t AliTRDgeometry::GetSector(Int_t det)
2861 {
2862   //
2863   // Reconstruct the sector number from the detector number
2864   //
2865
2866   return ((Int_t) (det / (fgkNlayer * fgkNstack)));
2867
2868 }
2869
2870 //_____________________________________________________________________________
2871 AliTRDpadPlane *AliTRDgeometry::GetPadPlane(Int_t layer, Int_t stack)
2872 {
2873   //
2874   // Returns the pad plane for a given plane <pl> and stack <st> number
2875   //
2876
2877   if (!fgPadPlaneArray) {
2878     CreatePadPlaneArray();
2879   }
2880
2881   Int_t ipp = GetDetectorSec(layer,stack);
2882   return ((AliTRDpadPlane *) fgPadPlaneArray->At(ipp));
2883
2884 }
2885
2886 //_____________________________________________________________________________
2887 Int_t AliTRDgeometry::GetRowMax(Int_t layer, Int_t stack, Int_t /*sector*/)
2888 {
2889   //
2890   // Returns the number of rows on the pad plane
2891   //
2892
2893   return GetPadPlane(layer,stack)->GetNrows();
2894
2895 }
2896
2897 //_____________________________________________________________________________
2898 Int_t AliTRDgeometry::GetColMax(Int_t layer)
2899 {
2900   //
2901   // Returns the number of rows on the pad plane
2902   //
2903
2904   return GetPadPlane(layer,0)->GetNcols();
2905
2906 }
2907
2908 //_____________________________________________________________________________
2909 Double_t AliTRDgeometry::GetRow0(Int_t layer, Int_t stack, Int_t /*sector*/)
2910 {
2911   //
2912   // Returns the position of the border of the first pad in a row
2913   //
2914
2915   return GetPadPlane(layer,stack)->GetRow0();
2916
2917 }
2918
2919 //_____________________________________________________________________________
2920 Double_t AliTRDgeometry::GetCol0(Int_t layer)
2921 {
2922   //
2923   // Returns the position of the border of the first pad in a column
2924   //
2925
2926   return GetPadPlane(layer,0)->GetCol0();
2927
2928 }
2929
2930 //_____________________________________________________________________________
2931 Bool_t AliTRDgeometry::CreateClusterMatrixArray()
2932 {
2933   //
2934   // Create the matrices to transform cluster coordinates from the
2935   // local chamber system to the tracking coordinate system
2936   //
2937
2938   if (!gGeoManager) {
2939     return kFALSE;
2940   }
2941
2942   if(fgClusterMatrixArray)
2943     return kTRUE;
2944
2945   TString volPath;
2946   TString vpStr   = "ALIC_1/B077_1/BSEGMO";
2947   TString vpApp1  = "_1/BTRD";
2948   TString vpApp2  = "_1";
2949   TString vpApp3a = "/UTR1_1/UTS1_1/UTI1_1";
2950   TString vpApp3b = "/UTR2_1/UTS2_1/UTI2_1";
2951   TString vpApp3c = "/UTR3_1/UTS3_1/UTI3_1";
2952
2953   fgClusterMatrixArray = new TObjArray(kNdet);
2954   AliAlignObjParams o;
2955
2956   for (Int_t iLayer = AliGeomManager::kTRD1; iLayer <= AliGeomManager::kTRD6; iLayer++) {
2957     for (Int_t iModule = 0; iModule < AliGeomManager::LayerSize(iLayer); iModule++) {
2958
2959       Int_t        isector   = iModule/Nstack();
2960       Int_t        istack    = iModule%Nstack();
2961       Int_t        iLayerTRD = iLayer - AliGeomManager::kTRD1;
2962       Int_t        lid       = GetDetector(iLayerTRD,istack,isector);
2963
2964       // Check for disabled supermodules
2965       volPath  = vpStr;
2966       volPath += isector;
2967       volPath += vpApp1;
2968       volPath += isector;
2969       volPath += vpApp2;
2970       switch (isector) {
2971       case 13:
2972       case 14:
2973       case 15:
2974         if (istack == 2) {
2975           continue;
2976         }
2977         volPath += vpApp3c;
2978         break;
2979       case 11:
2980       case 12:
2981         volPath += vpApp3b;
2982         break;
2983       default:
2984         volPath += vpApp3a;
2985       };
2986       if (!gGeoManager->CheckPath(volPath)) {
2987         continue;
2988       }
2989
2990       // Check for holes in from of PHOS
2991       if (((isector == 13) || (isector == 14) || (isector == 15)) &&
2992           (istack == 2)) {
2993         continue;
2994       }
2995
2996       UShort_t     volid   = AliGeomManager::LayerToVolUID(iLayer,iModule);
2997       const char  *symname = AliGeomManager::SymName(volid);
2998       TGeoPNEntry *pne     = gGeoManager->GetAlignableEntry(symname);
2999       const char  *path    = symname;
3000       if (pne) {
3001         path = pne->GetTitle();
3002       }
3003       else {
3004         continue;
3005       }
3006       if (!strstr(path,"ALIC")) {
3007         AliDebugClass(1,Form("Not a valid path: %s\n",path));
3008         continue;
3009       }
3010       if (!gGeoManager->cd(path)) {
3011         AliErrorClass(Form("Cannot go to path: %s\n",path));
3012         continue;
3013       }
3014       TGeoHMatrix *m         = gGeoManager->GetCurrentMatrix();
3015
3016       TGeoRotation mchange;
3017       mchange.RotateY(90);
3018       mchange.RotateX(90);
3019
3020       //
3021       // Cluster transformation matrix
3022       //
3023       TGeoHMatrix  rotMatrix(mchange.Inverse());
3024       rotMatrix.MultiplyLeft(m);
3025       Double_t sectorAngle = 20.0 * (isector % 18) + 10.0;
3026       TGeoHMatrix  rotSector;
3027       rotSector.RotateZ(sectorAngle);
3028       rotMatrix.MultiplyLeft(&rotSector.Inverse());
3029
3030       fgClusterMatrixArray->AddAt(new TGeoHMatrix(rotMatrix),lid);
3031
3032     }
3033   }
3034
3035   return kTRUE;
3036
3037 }
3038
3039 //_____________________________________________________________________________
3040 TGeoHMatrix *AliTRDgeometry::GetClusterMatrix(Int_t det)
3041 {
3042   //
3043   // Returns the cluster transformation matrix for a given detector
3044   //
3045
3046   if (!fgClusterMatrixArray) {
3047     if (!CreateClusterMatrixArray()) {
3048       return NULL;
3049     }
3050   }
3051   return (TGeoHMatrix *) fgClusterMatrixArray->At(det);
3052
3053 }
3054
3055 //_____________________________________________________________________________
3056 Bool_t AliTRDgeometry::ChamberInGeometry(Int_t det)
3057 {
3058   //
3059   // Checks whether the given detector is part of the current geometry
3060   //
3061
3062   if (!GetClusterMatrix(det)) {
3063     return kFALSE;
3064   }
3065   else {
3066     return kTRUE;
3067   }
3068
3069 }
3070
3071 //_____________________________________________________________________________
3072 Bool_t AliTRDgeometry::IsHole(Int_t /*la*/, Int_t st, Int_t se) const
3073 {
3074   //
3075   // Checks for holes in front of PHOS
3076   //
3077
3078   if (((se == 13) || (se == 14) || (se == 15)) &&
3079       (st == 2)) {
3080     return kTRUE;
3081   }
3082
3083   return kFALSE;
3084
3085 }
3086
3087 //_____________________________________________________________________________
3088 Bool_t AliTRDgeometry::IsOnBoundary(Int_t det, Float_t y, Float_t z, Float_t eps) const
3089 {
3090   //
3091   // Checks whether position is at the boundary of the sensitive volume
3092   //
3093
3094   Int_t ly = GetLayer(det);
3095   if ((ly <          0) ||
3096       (ly >= fgkNlayer)) return kTRUE;
3097
3098   Int_t stk = GetStack(det);
3099   if ((stk <          0) ||
3100       (stk >= fgkNstack)) return kTRUE;
3101
3102   AliTRDpadPlane *pp = (AliTRDpadPlane*) fgPadPlaneArray->At(GetDetectorSec(ly, stk));
3103   if(!pp) return kTRUE;
3104
3105   Double_t max  = pp->GetRow0();
3106   Int_t n = pp->GetNrows();
3107   Double_t min = max - 2 * pp->GetLengthOPad()
3108                  - (n-2) * pp->GetLengthIPad()
3109                  - (n-1) * pp->GetRowSpacing();
3110   if(z < min+eps || z > max-eps){
3111     //printf("z : min[%7.2f (%7.2f)] %7.2f max[(%7.2f) %7.2f]\n", min, min+eps, z, max-eps, max);
3112     return kTRUE;
3113   }
3114   min  = pp->GetCol0();
3115   n = pp->GetNcols();
3116   max = min +2 * pp->GetWidthOPad()
3117        + (n-2) * pp->GetWidthIPad()
3118        + (n-1) * pp->GetColSpacing();
3119   if(y < min+eps || y > max-eps){
3120     //printf("y : min[%7.2f (%7.2f)] %7.2f max[(%7.2f) %7.2f]\n", min, min+eps, y, max-eps, max);
3121     return kTRUE;
3122   }
3123
3124   return kFALSE;
3125
3126 }