FMD/AliFMDv0.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 /*
  17 $Log$
  18 Revision 1.7  1999/09/29 09:24:14  fca
  19 Introduction of the Copyright and cvs Log
  20
  21 */
  22
  23 ///////////////////////////////////////////////////////////////////////////////
  24 //                                                                           //
  25 //  Forward Multiplicity Detector version 0                                  //
  26 //                                                                           //
  27 //Begin_Html
  28 /*
  29 <img src="picts/AliFMDv0Class.gif">
  30 </pre>
  31 <br clear=left>
  32 <font size=+2 color=red>
  33 <p>The responsible person for this module is
  34 <a href="mailto:Valeri.Kondratiev@cern.ch">Valeri Kondratiev</a>.
  35 </font>
  36 <pre>
  37 */
  38 //End_Html
  39 //                                                                           //
  40 ///////////////////////////////////////////////////////////////////////////////
  41
  42 #include "AliRun.h"
  43 #include "AliFMDv0.h"
  44 #include "AliMC.h"
  45 #include "AliMagF.h"
  46
  47 #include "stdlib.h"
  48
  49 ClassImp(AliFMDv0)
  50
  51 //_____________________________________________________________________________
  52 AliFMDv0::AliFMDv0()
  53 {
  54   //
  55   // Default constructor for FMD version 0
  56   //
  57 }
  58
  59 //_____________________________________________________________________________
  60 AliFMDv0::AliFMDv0(const char *name, const char *title)
  61   : AliFMD(name,title)
  62 {
  63   //
  64   // Standard constructor for FMD version 0
  65   //
  66   AliModule *start = gAlice->GetModule("START");
  67   if(start) {
  68     Error("ctor","This version of FMD is incompatible with START\n");
  69     exit(1);
  70   }
  71 }
  72
  73 //___________________________________________
  74 void AliFMDv0::CreateGeometry()
  75 {
  76   //
  77   // Creation of the geometry of the FMD version 0
  78   //
  79   //Begin_Html
  80   /*
  81     <img src="picts/AliFMDv0Tree.gif">
  82   */
  83   //End_Html
  84   //Begin_Html
  85   /*
  86     <img src="picts/AliFMDv0.gif">
  87   */
  88   //End_Html
  89
  90
  91   Float_t rout, z;
  92   Float_t par[3], rin;
  93
  94   Int_t *idtmed = fIdtmed->GetArray()-899;
  95
  96   // ********************************************************
  97   //       DEFINE RIGHT DISK#3  OF FMD
  98   // ********************************************************
  99
 100   //       Define parameters
 101
 102   rin  = 4.5;
 103   rout = 10.5;
 104   z    = 85.;
 105   //       Ring #1
 106   par[0] = rin;
 107   par[1] = rout;
 108   par[2] = 1.5;
 109   gMC->Gsvolu("R1R3", "TUBE", idtmed[900], par, 3);
 110   gMC->Gspos("R1R3", 1, "ALIC", 0., 0., z + 1.5, 0, "ONLY");
 111   //       Ring #2
 112   par[0] = rout;
 113   par[1] = rout + .65;
 114   par[2] = 1.5;
 115   gMC->Gsvolu("R2R3", "TUBE", idtmed[901], par, 3);
 116   gMC->Gspos("R2R3", 1, "ALIC", 0., 0., z + 1.5, 0, "ONLY");
 117   //       Ring #3
 118   par[0] = rout + .65;
 119   par[1] = rout + 5.65;
 120   par[2] = .025;
 121   gMC->Gsvolu("R3R3", "TUBE", idtmed[902], par, 3);
 122   gMC->Gspos("R3R3", 1, "ALIC", 0., 0., z + 1.525, 0, "ONLY");
 123   // ***********************************************************
 124   //       DEFINE LEFT DISK#3 OF FMD
 125   // ***********************************************************
 126
 127   //       Define parameters
 128
 129   rin  = 4.5;
 130   rout = 10.5;
 131   z    = -85.;
 132   //       Ring #1
 133   par[0] = rin;
 134   par[1] = rout;
 135   par[2] = 1.5;
 136   gMC->Gsvolu("R1L3", "TUBE", idtmed[900], par, 3);
 137   gMC->Gspos("R1L3", 1, "ALIC", 0., 0., z - 1.5, 0, "ONLY");
 138   //       Ring #2
 139   par[0] = rout;
 140   par[1] = rout + .65;
 141   par[2] = 1.5;
 142   gMC->Gsvolu("R2L3", "TUBE", idtmed[901], par, 3);
 143   gMC->Gspos("R2L3", 1, "ALIC", 0., 0., z - 1.5, 0, "ONLY");
 144   //       Ring #3
 145   par[0] = rout + .65;
 146   par[1] = rout + 5.65;
 147   par[2] = .025;
 148   gMC->Gsvolu("R3L3", "TUBE", idtmed[902], par, 3);
 149   gMC->Gspos("R3L3", 1, "ALIC", 0., 0., z - 1.525, 0, "ONLY");
 150   // ********************************************************
 151   //       DEFINE RIGHT DISK#2  OF FMD
 152   // ********************************************************
 153
 154   //       Define parameters
 155
 156   rin  = 8.;
 157   rout = 14.;
 158   z    = 69.7;
 159   //       Ring #1
 160   par[0] = rin;
 161   par[1] = rout;
 162   par[2] = 1.5;
 163   gMC->Gsvolu("R1R2", "TUBE", idtmed[900], par, 3);
 164   gMC->Gspos("R1R2", 1, "ALIC", 0., 0., z + 1.5, 0, "ONLY");
 165   //       Ring #2
 166   par[0] = rout;
 167   par[1] = rout + .65;
 168   par[2] = 1.5;
 169   gMC->Gsvolu("R2R2", "TUBE", idtmed[901], par, 3);
 170   gMC->Gspos("R2R2", 1, "ALIC", 0., 0., z + 1.5, 0, "ONLY");
 171   //       Ring #3
 172   par[0] = rout + .65;
 173   par[1] = rout + 5.65;
 174   par[2] = .025;
 175   gMC->Gsvolu("R3R2", "TUBE", idtmed[902], par, 3);
 176   gMC->Gspos("R3R2", 1, "ALIC", 0., 0., z + 1.525, 0, "ONLY");
 177   // ***********************************************************
 178   //       DEFINE LEFT DISK#2 OF FMD
 179   // ***********************************************************
 180
 181   //       Define parameters
 182
 183   rin  = 8.;
 184   rout = 14.;
 185   z    = -69.7;
 186   //       Ring #1
 187   par[0] = rin;
 188   par[1] = rout;
 189   par[2] = 1.5;
 190   gMC->Gsvolu("R1L2", "TUBE", idtmed[900], par, 3);
 191   gMC->Gspos("R1L2", 1, "ALIC", 0., 0., z - 1.5, 0, "ONLY");
 192   //       Ring #2
 193   par[0] = rout;
 194   par[1] = rout + .65;
 195   par[2] = 1.5;
 196   gMC->Gsvolu("R2L2", "TUBE", idtmed[901], par, 3);
 197   gMC->Gspos("R2L2", 1, "ALIC", 0., 0., z - 1.5, 0, "ONLY");
 198   //       Ring #3
 199   par[0] = rout + .65;
 200   par[1] = rout + 5.65;
 201   par[2] = .025;
 202   gMC->Gsvolu("R3L2", "TUBE", idtmed[902], par, 3);
 203   gMC->Gspos("R3L2", 1, "ALIC", 0., 0., z - 1.525, 0, "ONLY");
 204   // ********************************************************
 205   //       DEFINE RIGHT DISK#1  OF FMD
 206   // ********************************************************
 207
 208   //       Define parameters
 209
 210   rin  = 8.;
 211   rout = 17.5;
 212   z    = 42.5;
 213   //       Ring #1
 214   par[0] = rin;
 215   par[1] = rout;
 216   par[2] = 1.5;
 217   gMC->Gsvolu("R1R1", "TUBE", idtmed[900], par, 3);
 218   gMC->Gspos("R1R1", 1, "ALIC", 0., 0., z + 1.5, 0, "ONLY");
 219   //       Ring #2
 220   par[0] = rout;
 221   par[1] = rout + .65;
 222   par[2] = 1.5;
 223   gMC->Gsvolu("R2R1", "TUBE", idtmed[901], par, 3);
 224   gMC->Gspos("R2R1", 1, "ALIC", 0., 0., z + 1.5, 0, "ONLY");
 225   //       Ring #3
 226   par[0] = rout + .65;
 227   par[1] = rout + 5.65;
 228   par[2] = .025;
 229   gMC->Gsvolu("R3R1", "TUBE", idtmed[902], par, 3);
 230   gMC->Gspos("R3R1", 1, "ALIC", 0., 0., z + 1.525, 0, "ONLY");
 231   // ***********************************************************
 232   //       DEFINE LEFT DISK#1 OF FMD
 233   // ***********************************************************
 234
 235   //       Define parameters
 236
 237   rin  = 8.;
 238   rout = 17.5;
 239   z    = -42.5;
 240   //       Ring #1
 241   par[0] = rin;
 242   par[1] = rout;
 243   par[2] = 1.5;
 244   gMC->Gsvolu("R1L1", "TUBE", idtmed[900], par, 3);
 245   gMC->Gspos("R1L1", 1, "ALIC", 0., 0., z - 1.5, 0, "ONLY");
 246   //       Ring #2
 247   par[0] = rout;
 248   par[1] = rout + .65;
 249   par[2] = 1.5;
 250   gMC->Gsvolu("R2L1", "TUBE", idtmed[901], par, 3);
 251   gMC->Gspos("R2L1", 1, "ALIC", 0., 0., z - 1.5, 0, "ONLY");
 252   //       Ring #3
 253   par[0] = rout + .65;
 254   par[1] = rout + 5.65;
 255   par[2] = .025;
 256   gMC->Gsvolu("R3L1", "TUBE", idtmed[902], par, 3);
 257   gMC->Gspos("R3L1", 1, "ALIC", 0., 0., z - 1.525, 0, "ONLY");
 258   // ***********************************************************
 259   //       DEFINE LEFT DISK#4 OF FMD
 260   // ***********************************************************
 261
 262   //       Define parameters
 263
 264   rin  = 4.2;
 265   rout = 13.;
 266   z    = -229.5;
 267   //       Ring #1
 268   par[0] = rin;
 269   par[1] = rout;
 270   par[2] = 1.5;
 271   gMC->Gsvolu("R1L4", "TUBE", idtmed[900], par, 3);
 272   gMC->Gspos("R1L4", 1, "ALIC", 0., 0., z - 1.5, 0, "ONLY");
 273   //       Ring #2
 274   par[0] = rout;
 275   par[1] = rout + .65;
 276   par[2] = 1.5;
 277   gMC->Gsvolu("R2L4", "TUBE", idtmed[901], par, 3);
 278   gMC->Gspos("R2L4", 1, "ALIC", 0., 0., z - 1.5, 0, "ONLY");
 279   //       Ring #3
 280   par[0] = rout + .65;
 281   par[1] = rout + 5.65;
 282   par[2] = .025;
 283   gMC->Gsvolu("R3L4", "TUBE", idtmed[902], par, 3);
 284   gMC->Gspos("R3L4", 1, "ALIC", 0., 0., z - 1.525, 0, "ONLY");
 285 }
 286
 287 //_____________________________________________________________________________
 288 void AliFMDv0::DrawModule()
 289 {
 290   //
 291   // Draw a shaded view of the FMD version 0
 292   //
 293
 294   // Set everything unseen
 295   gMC->Gsatt("*", "seen", -1);
 296   //
 297   // Set ALIC mother transparent
 298   gMC->Gsatt("ALIC","SEEN",0);
 299   //
 300   // Set the volumes visible
 301   gMC->Gsatt("R1R3","SEEN",1);
 302   gMC->Gsatt("R2R3","SEEN",1);
 303   gMC->Gsatt("R3R3","SEEN",1);
 304   gMC->Gsatt("R1L3","SEEN",1);
 305   gMC->Gsatt("R2L3","SEEN",1);
 306   gMC->Gsatt("R3L3","SEEN",1);
 307   gMC->Gsatt("R1R2","SEEN",1);
 308   gMC->Gsatt("R2R2","SEEN",1);
 309   gMC->Gsatt("R3R2","SEEN",1);
 310   gMC->Gsatt("R1L2","SEEN",1);
 311   gMC->Gsatt("R2L2","SEEN",1);
 312   gMC->Gsatt("R3L2","SEEN",1);
 313   gMC->Gsatt("R1R1","SEEN",1);
 314   gMC->Gsatt("R2R1","SEEN",1);
 315   gMC->Gsatt("R3R1","SEEN",1);
 316   gMC->Gsatt("R1L1","SEEN",1);
 317   gMC->Gsatt("R2L1","SEEN",1);
 318   gMC->Gsatt("R3L1","SEEN",1);
 319   gMC->Gsatt("R1L4","SEEN",1);
 320   gMC->Gsatt("R2L4","SEEN",1);
 321   gMC->Gsatt("R3L4","SEEN",1);
 322   //
 323   gMC->Gdopt("hide", "on");
 324   gMC->Gdopt("shad", "on");
 325   gMC->Gsatt("*", "fill", 7);
 326   gMC->SetClipBox(".");
 327   gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
 328   gMC->DefaultRange();
 329   gMC->Gdraw("alic", 40, 30, 0, 6, 9, .08, .08);
 330   gMC->Gdhead(1111, "Forward Multiplicity Detector version 0");
 331   gMC->Gdman(13, 9, "MAN");
 332 }
 333
 334 //_____________________________________________________________________________
 335 void AliFMDv0::CreateMaterials()
 336 {
 337   //
 338   // Create Materials for version 0 of FMD
 339   //
 340
 341   //     Material for ring #1
 342   Float_t ar1[8] = { 55.8,58.7,52.,47.9,16.,28.,207.2,27. };
 343   Float_t zr1[8] = { 26.,28.,24.,22.,8.,14.,82.,13. };
 344   Float_t wr1[8] = { .27,.081,.054,.045,.18,.25,.06,.06 };
 345   //     Material for ring #2
 346   Float_t ar2[3] = { 55.8,27.,16. };
 347   Float_t zr2[3] = { 26.,13.,8. };
 348   Float_t wr2[3] = { .35,.34,.31 };
 349   //     Material for ring #3
 350   Float_t ar3[3] = { 28.,27.,16. };
 351   Float_t zr3[3] = { 14.,13.,8. };
 352   Float_t wr3[3] = { .37,.33,.3 };
 353
 354   Float_t epsil, stmin, deemax, tmaxfd, stemax;
 355
 356   Int_t   ISXFLD = gAlice->Field()->Integ();
 357   Float_t SXMGMX = gAlice->Field()->Max();
 358
 359   //     Ring #1
 360
 361   AliMixture(1, "FMD_R1$", ar1, zr1, 2.69, 8, wr1);
 362
 363   //     Ring #2
 364
 365   AliMixture(2, "FMD_R2$", ar2, zr2, 2.63, 3, wr2);
 366
 367   //     Ring #3
 368
 369   AliMixture(3, "FMD_R3$", ar3, zr3, 3.15, 3, wr3);
 370   // *******************************************************
 371   //     Defines tracking media parameters.
 372   // *******************************************************
 373   epsil  = .001; // Tracking precision, DLS
 374   stemax = -1.;  // Maximum displacement for multiple scattering
 375   tmaxfd = -20.; // Maximum angle due to field deflection
 376   deemax = -.3;  // Maximum fractional energy loss, DLS
 377   stmin  = -.8;
 378   // ********************************************************
 379   AliMedium(1, "FMD_R1_L3        ", 1, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
 380   AliMedium(2, "FMD_R2_L3        ", 2, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
 381   AliMedium(3, "FMD_R3_L3        ", 3, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
 382 }
 383
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