FMD/AliFMDv0.cxx

   1 ///////////////////////////////////////////////////////////////////////////////
   2 //                                                                           //
   3 //  Forward Multiplicity Detector version 0                                  //
   4 //                                                                           //
   5 //Begin_Html
   6 /*
   7 <img src="picts/AliFMDv0Class.gif">
   8 </pre>
   9 <br clear=left>
  10 <font size=+2 color=red>
  11 <p>The responsible person for this module is
  12 <a href="mailto:Valeri.Kondratiev@cern.ch">Valeri Kondratiev</a>.
  13 </font>
  14 <pre>
  15 */
  16 //End_Html
  17 //                                                                           //
  18 ///////////////////////////////////////////////////////////////////////////////
  19
  20 #include "AliRun.h"
  21 #include "AliFMDv0.h"
  22 #include "AliMC.h"
  23
  24 ClassImp(AliFMDv0)
  25
  26 //_____________________________________________________________________________
  27 AliFMDv0::AliFMDv0() : AliFMD()
  28 {
  29   //
  30   // Default constructor for FMD version 0
  31   //
  32 }
  33
  34 //_____________________________________________________________________________
  35 AliFMDv0::AliFMDv0(const char *name, const char *title)
  36   : AliFMD(name,title)
  37 {
  38   //
  39   // Standard constructor for FMD version 0
  40   //
  41 }
  42
  43 //___________________________________________
  44 void AliFMDv0::CreateGeometry()
  45 {
  46   //
  47   // Creation of the geometry of the FMD version 0
  48   //
  49   //Begin_Html
  50   /*
  51     <img src="picts/AliFMDv0Tree.gif">
  52   */
  53   //End_Html
  54   //Begin_Html
  55   /*
  56     <img src="picts/AliFMDv0.gif">
  57   */
  58   //End_Html
  59
  60
  61   Float_t rout, z;
  62   Float_t par[3], rin;
  63
  64   Int_t *idtmed = fIdtmed->GetArray()-899;
  65
  66   // ********************************************************
  67   //       DEFINE RIGHT DISK#3  OF FMD
  68   // ********************************************************
  69
  70   //       Define parameters
  71
  72   rin  = 4.5;
  73   rout = 10.5;
  74   z    = 85.;
  75   //       Ring #1
  76   par[0] = rin;
  77   par[1] = rout;
  78   par[2] = 1.5;
  79   gMC->Gsvolu("R1R3", "TUBE", idtmed[900], par, 3);
  80   gMC->Gspos("R1R3", 1, "ALIC", 0., 0., z + 1.5, 0, "ONLY");
  81   //       Ring #2
  82   par[0] = rout;
  83   par[1] = rout + .65;
  84   par[2] = 1.5;
  85   gMC->Gsvolu("R2R3", "TUBE", idtmed[901], par, 3);
  86   gMC->Gspos("R2R3", 1, "ALIC", 0., 0., z + 1.5, 0, "ONLY");
  87   //       Ring #3
  88   par[0] = rout + .65;
  89   par[1] = rout + 5.65;
  90   par[2] = .025;
  91   gMC->Gsvolu("R3R3", "TUBE", idtmed[902], par, 3);
  92   gMC->Gspos("R3R3", 1, "ALIC", 0., 0., z + 1.525, 0, "ONLY");
  93   // ***********************************************************
  94   //       DEFINE LEFT DISK#3 OF FMD
  95   // ***********************************************************
  96
  97   //       Define parameters
  98
  99   rin  = 4.5;
 100   rout = 10.5;
 101   z    = -85.;
 102   //       Ring #1
 103   par[0] = rin;
 104   par[1] = rout;
 105   par[2] = 1.5;
 106   gMC->Gsvolu("R1L3", "TUBE", idtmed[900], par, 3);
 107   gMC->Gspos("R1L3", 1, "ALIC", 0., 0., z - 1.5, 0, "ONLY");
 108   //       Ring #2
 109   par[0] = rout;
 110   par[1] = rout + .65;
 111   par[2] = 1.5;
 112   gMC->Gsvolu("R2L3", "TUBE", idtmed[901], par, 3);
 113   gMC->Gspos("R2L3", 1, "ALIC", 0., 0., z - 1.5, 0, "ONLY");
 114   //       Ring #3
 115   par[0] = rout + .65;
 116   par[1] = rout + 5.65;
 117   par[2] = .025;
 118   gMC->Gsvolu("R3L3", "TUBE", idtmed[902], par, 3);
 119   gMC->Gspos("R3L3", 1, "ALIC", 0., 0., z - 1.525, 0, "ONLY");
 120   // ********************************************************
 121   //       DEFINE RIGHT DISK#2  OF FMD
 122   // ********************************************************
 123
 124   //       Define parameters
 125
 126   rin  = 8.;
 127   rout = 14.;
 128   z    = 69.7;
 129   //       Ring #1
 130   par[0] = rin;
 131   par[1] = rout;
 132   par[2] = 1.5;
 133   gMC->Gsvolu("R1R2", "TUBE", idtmed[900], par, 3);
 134   gMC->Gspos("R1R2", 1, "ALIC", 0., 0., z + 1.5, 0, "ONLY");
 135   //       Ring #2
 136   par[0] = rout;
 137   par[1] = rout + .65;
 138   par[2] = 1.5;
 139   gMC->Gsvolu("R2R2", "TUBE", idtmed[901], par, 3);
 140   gMC->Gspos("R2R2", 1, "ALIC", 0., 0., z + 1.5, 0, "ONLY");
 141   //       Ring #3
 142   par[0] = rout + .65;
 143   par[1] = rout + 5.65;
 144   par[2] = .025;
 145   gMC->Gsvolu("R3R2", "TUBE", idtmed[902], par, 3);
 146   gMC->Gspos("R3R2", 1, "ALIC", 0., 0., z + 1.525, 0, "ONLY");
 147   // ***********************************************************
 148   //       DEFINE LEFT DISK#2 OF FMD
 149   // ***********************************************************
 150
 151   //       Define parameters
 152
 153   rin  = 8.;
 154   rout = 14.;
 155   z    = -69.7;
 156   //       Ring #1
 157   par[0] = rin;
 158   par[1] = rout;
 159   par[2] = 1.5;
 160   gMC->Gsvolu("R1L2", "TUBE", idtmed[900], par, 3);
 161   gMC->Gspos("R1L2", 1, "ALIC", 0., 0., z - 1.5, 0, "ONLY");
 162   //       Ring #2
 163   par[0] = rout;
 164   par[1] = rout + .65;
 165   par[2] = 1.5;
 166   gMC->Gsvolu("R2L2", "TUBE", idtmed[901], par, 3);
 167   gMC->Gspos("R2L2", 1, "ALIC", 0., 0., z - 1.5, 0, "ONLY");
 168   //       Ring #3
 169   par[0] = rout + .65;
 170   par[1] = rout + 5.65;
 171   par[2] = .025;
 172   gMC->Gsvolu("R3L2", "TUBE", idtmed[902], par, 3);
 173   gMC->Gspos("R3L2", 1, "ALIC", 0., 0., z - 1.525, 0, "ONLY");
 174   // ********************************************************
 175   //       DEFINE RIGHT DISK#1  OF FMD
 176   // ********************************************************
 177
 178   //       Define parameters
 179
 180   rin  = 8.;
 181   rout = 17.5;
 182   z    = 42.5;
 183   //       Ring #1
 184   par[0] = rin;
 185   par[1] = rout;
 186   par[2] = 1.5;
 187   gMC->Gsvolu("R1R1", "TUBE", idtmed[900], par, 3);
 188   gMC->Gspos("R1R1", 1, "ALIC", 0., 0., z + 1.5, 0, "ONLY");
 189   //       Ring #2
 190   par[0] = rout;
 191   par[1] = rout + .65;
 192   par[2] = 1.5;
 193   gMC->Gsvolu("R2R1", "TUBE", idtmed[901], par, 3);
 194   gMC->Gspos("R2R1", 1, "ALIC", 0., 0., z + 1.5, 0, "ONLY");
 195   //       Ring #3
 196   par[0] = rout + .65;
 197   par[1] = rout + 5.65;
 198   par[2] = .025;
 199   gMC->Gsvolu("R3R1", "TUBE", idtmed[902], par, 3);
 200   gMC->Gspos("R3R1", 1, "ALIC", 0., 0., z + 1.525, 0, "ONLY");
 201   // ***********************************************************
 202   //       DEFINE LEFT DISK#1 OF FMD
 203   // ***********************************************************
 204
 205   //       Define parameters
 206
 207   rin  = 8.;
 208   rout = 17.5;
 209   z    = -42.5;
 210   //       Ring #1
 211   par[0] = rin;
 212   par[1] = rout;
 213   par[2] = 1.5;
 214   gMC->Gsvolu("R1L1", "TUBE", idtmed[900], par, 3);
 215   gMC->Gspos("R1L1", 1, "ALIC", 0., 0., z - 1.5, 0, "ONLY");
 216   //       Ring #2
 217   par[0] = rout;
 218   par[1] = rout + .65;
 219   par[2] = 1.5;
 220   gMC->Gsvolu("R2L1", "TUBE", idtmed[901], par, 3);
 221   gMC->Gspos("R2L1", 1, "ALIC", 0., 0., z - 1.5, 0, "ONLY");
 222   //       Ring #3
 223   par[0] = rout + .65;
 224   par[1] = rout + 5.65;
 225   par[2] = .025;
 226   gMC->Gsvolu("R3L1", "TUBE", idtmed[902], par, 3);
 227   gMC->Gspos("R3L1", 1, "ALIC", 0., 0., z - 1.525, 0, "ONLY");
 228   // ***********************************************************
 229   //       DEFINE LEFT DISK#4 OF FMD
 230   // ***********************************************************
 231
 232   //       Define parameters
 233
 234   rin  = 4.2;
 235   rout = 13.;
 236   z    = -229.5;
 237   //       Ring #1
 238   par[0] = rin;
 239   par[1] = rout;
 240   par[2] = 1.5;
 241   gMC->Gsvolu("R1L4", "TUBE", idtmed[900], par, 3);
 242   gMC->Gspos("R1L4", 1, "ALIC", 0., 0., z - 1.5, 0, "ONLY");
 243   //       Ring #2
 244   par[0] = rout;
 245   par[1] = rout + .65;
 246   par[2] = 1.5;
 247   gMC->Gsvolu("R2L4", "TUBE", idtmed[901], par, 3);
 248   gMC->Gspos("R2L4", 1, "ALIC", 0., 0., z - 1.5, 0, "ONLY");
 249   //       Ring #3
 250   par[0] = rout + .65;
 251   par[1] = rout + 5.65;
 252   par[2] = .025;
 253   gMC->Gsvolu("R3L4", "TUBE", idtmed[902], par, 3);
 254   gMC->Gspos("R3L4", 1, "ALIC", 0., 0., z - 1.525, 0, "ONLY");
 255 }
 256
 257 //_____________________________________________________________________________
 258 void AliFMDv0::DrawModule()
 259 {
 260   //
 261   // Draw a shaded view of the FMD version 0
 262   //
 263
 264   // Set everything unseen
 265   gMC->Gsatt("*", "seen", -1);
 266   //
 267   // Set ALIC mother transparent
 268   gMC->Gsatt("ALIC","SEEN",0);
 269   //
 270   // Set the volumes visible
 271   gMC->Gsatt("R1R3","SEEN",1);
 272   gMC->Gsatt("R2R3","SEEN",1);
 273   gMC->Gsatt("R3R3","SEEN",1);
 274   gMC->Gsatt("R1L3","SEEN",1);
 275   gMC->Gsatt("R2L3","SEEN",1);
 276   gMC->Gsatt("R3L3","SEEN",1);
 277   gMC->Gsatt("R1R2","SEEN",1);
 278   gMC->Gsatt("R2R2","SEEN",1);
 279   gMC->Gsatt("R3R2","SEEN",1);
 280   gMC->Gsatt("R1L2","SEEN",1);
 281   gMC->Gsatt("R2L2","SEEN",1);
 282   gMC->Gsatt("R3L2","SEEN",1);
 283   gMC->Gsatt("R1R1","SEEN",1);
 284   gMC->Gsatt("R2R1","SEEN",1);
 285   gMC->Gsatt("R3R1","SEEN",1);
 286   gMC->Gsatt("R1L1","SEEN",1);
 287   gMC->Gsatt("R2L1","SEEN",1);
 288   gMC->Gsatt("R3L1","SEEN",1);
 289   gMC->Gsatt("R1L4","SEEN",1);
 290   gMC->Gsatt("R2L4","SEEN",1);
 291   gMC->Gsatt("R3L4","SEEN",1);
 292   //
 293   gMC->Gdopt("hide", "on");
 294   gMC->Gdopt("shad", "on");
 295   gMC->Gsatt("*", "fill", 7);
 296   gMC->SetClipBox(".");
 297   gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
 298   gMC->DefaultRange();
 299   gMC->Gdraw("alic", 40, 30, 0, 6, 9, .08, .08);
 300   gMC->Gdhead(1111, "Forward Multiplicity Detector version 0");
 301   gMC->Gdman(13, 9, "MAN");
 302 }
 303
 304 //_____________________________________________________________________________
 305 void AliFMDv0::CreateMaterials()
 306 {
 307   //
 308   // Create Materials for version 0 of FMD
 309   //
 310
 311   //     Material for ring #1
 312   Float_t ar1[8] = { 55.8,58.7,52.,47.9,16.,28.,207.2,27. };
 313   Float_t zr1[8] = { 26.,28.,24.,22.,8.,14.,82.,13. };
 314   Float_t wr1[8] = { .27,.081,.054,.045,.18,.25,.06,.06 };
 315   //     Material for ring #2
 316   Float_t ar2[3] = { 55.8,27.,16. };
 317   Float_t zr2[3] = { 26.,13.,8. };
 318   Float_t wr2[3] = { .35,.34,.31 };
 319   //     Material for ring #3
 320   Float_t ar3[3] = { 28.,27.,16. };
 321   Float_t zr3[3] = { 14.,13.,8. };
 322   Float_t wr3[3] = { .37,.33,.3 };
 323
 324   Float_t epsil, stmin, deemax, tmaxfd, stemax;
 325
 326   Int_t   ISXFLD = gAlice->Field()->Integ();
 327   Float_t SXMGMX = gAlice->Field()->Max();
 328
 329   //     Ring #1
 330
 331   AliMixture(1, "FMD_R1$", ar1, zr1, 2.69, 8, wr1);
 332
 333   //     Ring #2
 334
 335   AliMixture(2, "FMD_R2$", ar2, zr2, 2.63, 3, wr2);
 336
 337   //     Ring #3
 338
 339   AliMixture(3, "FMD_R3$", ar3, zr3, 3.15, 3, wr3);
 340   // *******************************************************
 341   //     Defines tracking media parameters.
 342   // *******************************************************
 343   epsil  = .001; // Tracking precision, DLS
 344   stemax = -1.;  // Maximum displacement for multiple scattering
 345   tmaxfd = -20.; // Maximum angle due to field deflection
 346   deemax = -.3;  // Maximum fractional energy loss, DLS
 347   stmin  = -.8;
 348   // ********************************************************
 349   AliMedium(1, "FMD_R1_L3        ", 1, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
 350   AliMedium(2, "FMD_R2_L3        ", 2, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
 351   AliMedium(3, "FMD_R3_L3        ", 3, 0, ISXFLD, SXMGMX, tmaxfd, stemax, deemax, epsil, stmin);
 352 }
 353
 354
 355