TOF/AliTOFv4.cxx

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   3  *                                                                        *
   4  * Author: The ALICE Off-line Project.                                    *
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  15
  16 /* $Id$ */
  17
  18 ///////////////////////////////////////////////////////////////////////////////
  19 //                                                                           //
  20 //  This class contains the functions for version 4 of the Time Of Flight    //
  21 //  detector.                                                                //
  22 //                                                                           //
  23 //  VERSION WITH 5 MODULES AND TILTED STRIPS                                 //
  24 //                                                                           //
  25 //   FULL COVERAGE VERSION                                                   //
  26 //                                                                           //
  27 //                                                                           //
  28 //   Authors:                                                                //
  29 //                                                                           //
  30 //   Alessio Seganti                                                         //
  31 //   Domenico Vicinanza                                                      //
  32 //                                                                           //
  33 //   University of Salerno - Italy                                           //
  34 //                                                                           //
  35 //   Fabrizio Pierella                                                       //
  36 //   University of Bologna - Italy                                           //
  37 //                                                                           //
  38 //                                                                           //
  39 //Begin_Html                                                                 //
  40 /*                                                                           //
  41 <img src="picts/AliTOFv4Class.gif">                                          //
  42 */                                                                           //
  43 //End_Html                                                                   //
  44 //                                                                           //
  45 ///////////////////////////////////////////////////////////////////////////////
  46
  47 #include <Riostream.h>
  48 #include <stdlib.h>
  49
  50 #include <TBRIK.h>
  51 #include <TGeometry.h>
  52 #include <TLorentzVector.h>
  53 #include <TNode.h>
  54 #include <TObject.h>
  55 #include <TVirtualMC.h>
  56
  57 #include "AliConst.h"
  58 #include "AliRun.h"
  59 #include "AliTOFv4.h"
  60 #include "AliTOFConstants.h" // AdC
  61 #include "AliMC.h"
  62
  63 ClassImp(AliTOFv4)
  64
  65 //_____________________________________________________________________________
  66 AliTOFv4::AliTOFv4()
  67 {
  68   //
  69   // Default constructor
  70   //
  71 }
  72
  73 //_____________________________________________________________________________
  74 AliTOFv4::AliTOFv4(const char *name, const char *title)
  75         : AliTOF(name,title)
  76 {
  77   //
  78   // Standard constructor
  79   //
  80   //
  81   // Check that FRAME is there otherwise we have no place where to
  82   // put TOF
  83   AliModule* frame=gAlice->GetModule("FRAME");
  84   if(!frame) {
  85     Error("Ctor","TOF needs FRAME to be present\n");
  86     exit(1);
  87   } else
  88     if(frame->IsVersion()!=1) {
  89       Error("Ctor","FRAME version 1 needed with this version of TOF\n");
  90       exit(1);
  91     }
  92
  93 }
  94
  95 //_____________________________________________________________________________
  96 void AliTOFv4::CreateGeometry()
  97 {
  98   //
  99   // Create geometry for Time Of Flight version 0
 100   //
 101   //Begin_Html
 102   /*
 103     <img src="picts/AliTOFv4.gif">
 104   */
 105   //End_Html
 106   //
 107   // Creates common geometry
 108   //
 109   AliTOF::CreateGeometry();
 110 }
 111
 112 //_____________________________________________________________________________
 113 void AliTOFv4::TOFpc(Float_t xtof, Float_t ytof, Float_t zlenC,
 114                      Float_t zlenB, Float_t zlenA, Float_t ztof0)
 115 {
 116   //
 117   // Definition of the Time Of Fligh Resistive Plate Chambers
 118   // xFLT, yFLT, zFLT - sizes of TOF modules (large)
 119
 120   Float_t  ycoor, zcoor;
 121   Float_t  par[3];
 122   Int_t    *idtmed = fIdtmed->GetArray()-499;
 123   Int_t    idrotm[100];
 124   Int_t    nrot = 0;
 125   Float_t  hTof = fRmax-fRmin;
 126
 127   Float_t radius = fRmin+2.;//cm
 128
 129   par[0] =  xtof * 0.5;
 130   par[1] =  ytof * 0.5;
 131   par[2] = zlenC * 0.5;
 132   gMC->Gsvolu("FTOC", "BOX ", idtmed[506], par, 3);
 133   par[2] = zlenB * 0.5;
 134   gMC->Gsvolu("FTOB", "BOX ", idtmed[506], par, 3);
 135   par[2] = zlenA * 0.5;
 136   gMC->Gsvolu("FTOA", "BOX ", idtmed[506], par, 3);
 137
 138
 139   // Positioning of modules
 140
 141   Float_t zcor1 = ztof0 - zlenC*0.5;
 142   Float_t zcor2 = ztof0 - zlenC - zlenB*0.5;
 143   Float_t zcor3 = 0.;
 144
 145   AliMatrix(idrotm[0], 90.,  0., 0., 0., 90,-90.);
 146   AliMatrix(idrotm[1], 90.,180., 0., 0., 90, 90.);
 147   gMC->Gspos("FTOC", 1, "BTO1", 0,  zcor1, 0, idrotm[0], "ONLY");
 148   gMC->Gspos("FTOC", 2, "BTO1", 0, -zcor1, 0, idrotm[1], "ONLY");
 149   gMC->Gspos("FTOC", 1, "BTO2", 0,  zcor1, 0, idrotm[0], "ONLY");
 150   gMC->Gspos("FTOC", 2, "BTO2", 0, -zcor1, 0, idrotm[1], "ONLY");
 151   gMC->Gspos("FTOC", 1, "BTO3", 0,  zcor1, 0, idrotm[0], "ONLY");
 152   gMC->Gspos("FTOC", 2, "BTO3", 0, -zcor1, 0, idrotm[1], "ONLY");
 153
 154   gMC->Gspos("FTOB", 1, "BTO1", 0,  zcor2, 0, idrotm[0], "ONLY");
 155   gMC->Gspos("FTOB", 2, "BTO1", 0, -zcor2, 0, idrotm[1], "ONLY");
 156   gMC->Gspos("FTOB", 1, "BTO2", 0,  zcor2, 0, idrotm[0], "ONLY");
 157   gMC->Gspos("FTOB", 2, "BTO2", 0, -zcor2, 0, idrotm[1], "ONLY");
 158   gMC->Gspos("FTOB", 1, "BTO3", 0,  zcor2, 0, idrotm[0], "ONLY");
 159   gMC->Gspos("FTOB", 2, "BTO3", 0, -zcor2, 0, idrotm[1], "ONLY");
 160
 161   gMC->Gspos("FTOA", 0, "BTO1", 0, zcor3,  0, idrotm[0], "ONLY");
 162   gMC->Gspos("FTOA", 0, "BTO2", 0, zcor3,  0, idrotm[0], "ONLY");
 163   gMC->Gspos("FTOA", 0, "BTO3", 0, zcor3,  0, idrotm[0], "ONLY");
 164
 165   Float_t db = 0.5;//cm
 166   Float_t xFLT, xFST, yFLT, zFLTA, zFLTB, zFLTC;
 167
 168   xFLT = fStripLn;
 169   yFLT = ytof;
 170   zFLTA = zlenA;
 171   zFLTB = zlenB;
 172   zFLTC = zlenC;
 173
 174   xFST = xFLT-fDeadBndX*2;//cm
 175
 176   // Sizes of MRPC pads
 177
 178   Float_t yPad = 0.505;//cm
 179
 180   // Large not sensitive volumes with Insensitive Freon
 181   par[0] = xFLT*0.5;
 182   par[1] = yFLT*0.5;
 183
 184   if (fDebug) cout << ClassName() <<
 185                 ": ************************* TOF geometry **************************"<<endl;
 186
 187   par[2] = (zFLTA *0.5);
 188   gMC->Gsvolu("FLTA", "BOX ", idtmed[512], par, 3); // Insensitive Freon
 189   gMC->Gspos ("FLTA", 0, "FTOA", 0., 0., 0., 0, "ONLY");
 190
 191   par[2] = (zFLTB * 0.5);
 192   gMC->Gsvolu("FLTB", "BOX ", idtmed[512], par, 3); // Insensitive Freon
 193   gMC->Gspos ("FLTB", 0, "FTOB", 0., 0., 0., 0, "ONLY");
 194
 195   par[2] = (zFLTC * 0.5);
 196   gMC->Gsvolu("FLTC", "BOX ", idtmed[512], par, 3); // Insensitive Freon
 197   gMC->Gspos ("FLTC", 0, "FTOC", 0., 0., 0., 0, "ONLY");
 198
 199   ///// Layers of Aluminum before and after detector /////
 200   ///// Aluminum Box for Modules (1.8 mm thickness)  /////
 201   ///// lateral walls not simulated for the time being
 202   //const Float_t khAlWall = 0.18;
 203   // fp to be checked
 204   const Float_t khAlWall = 0.11;
 205   par[0] = xFLT*0.5;
 206   par[1] = khAlWall/2.;//cm
 207   ycoor = -yFLT/2 + par[1];
 208   par[2] = (zFLTA *0.5);
 209   gMC->Gsvolu("FALA", "BOX ", idtmed[508], par, 3); // Alluminium
 210   gMC->Gspos ("FALA", 1, "FLTA", 0., ycoor, 0., 0, "ONLY");
 211   gMC->Gspos ("FALA", 2, "FLTA", 0.,-ycoor, 0., 0, "ONLY");
 212   par[2] = (zFLTB *0.5);
 213   gMC->Gsvolu("FALB", "BOX ", idtmed[508], par, 3); // Alluminium
 214   gMC->Gspos ("FALB", 1, "FLTB", 0., ycoor, 0., 0, "ONLY");
 215   gMC->Gspos ("FALB", 2, "FLTB", 0.,-ycoor, 0., 0, "ONLY");
 216   par[2] = (zFLTC *0.5);
 217   gMC->Gsvolu("FALC", "BOX ", idtmed[508], par, 3); // Alluminium
 218   gMC->Gspos ("FALC", 1, "FLTC", 0., ycoor, 0., 0, "ONLY");
 219   gMC->Gspos ("FALC", 2, "FLTC", 0.,-ycoor, 0., 0, "ONLY");
 220
 221   ///////////////// Detector itself //////////////////////
 222
 223   const Float_t  kdeadBound  =  fDeadBndZ; //cm non-sensitive between the pad edge
 224   //and the boundary of the strip
 225   const Int_t    knx    = fNpadX;          // number of pads along x
 226   const Int_t    knz    = fNpadZ;          // number of pads along z
 227   const Float_t  kspace = fSpace;            //cm distance from the front plate of the box
 228
 229   Float_t zSenStrip  = fZpad*fNpadZ;//cm
 230   Float_t stripWidth = zSenStrip + 2*kdeadBound;
 231
 232   par[0] = xFLT*0.5;
 233   par[1] = yPad*0.5;
 234   par[2] = stripWidth*0.5;
 235
 236   // new description for strip volume -double stack strip-
 237   // -- all constants are expressed in cm
 238   // heigth of different layers
 239   const Float_t khhony = 0.8     ;   // heigth of HONY  Layer
 240   const Float_t khpcby = 0.08    ;   // heigth of PCB   Layer
 241   const Float_t khmyly = 0.035   ;   // heigth of MYLAR Layer
 242   const Float_t khgraphy = 0.02  ;   // heigth of GRAPHITE Layer
 243   const Float_t khglasseiy = 0.135;   // 0.6 Ext. Glass + 1.1 i.e. (Int. Glass/2) (mm)
 244   const Float_t khsensmy = 0.11  ;   // heigth of Sensitive Freon Mixture
 245   const Float_t kwsensmz = 2*3.5 ;   // cm
 246   const Float_t klsensmx = 48*2.5;   // cm
 247   const Float_t kwpadz = 3.5;   // cm z dimension of the FPAD volume
 248   const Float_t klpadx = 2.5;   // cm x dimension of the FPAD volume
 249
 250   // heigth of the FSTR Volume (the strip volume)
 251   const Float_t khstripy = 2*khhony+3*khpcby+4*(khmyly+khgraphy+khglasseiy)+2*khsensmy;
 252   // width  of the FSTR Volume (the strip volume)
 253   const Float_t kwstripz = 10.;
 254   // length of the FSTR Volume (the strip volume)
 255   const Float_t klstripx = 122.;
 256
 257   Float_t parfp[3]={klstripx*0.5,khstripy*0.5,kwstripz*0.5};
 258   // coordinates of the strip center in the strip reference frame; used for positioning
 259   // internal strip volumes
 260   Float_t posfp[3]={0.,0.,0.};
 261
 262
 263   // FSTR volume definition and filling this volume with non sensitive Gas Mixture
 264   gMC->Gsvolu("FSTR","BOX",idtmed[512],parfp,3);
 265   //-- HONY Layer definition
 266   //  parfp[0] = -1;
 267   parfp[1] = khhony*0.5;
 268   //  parfp[2] = -1;
 269   gMC->Gsvolu("FHON","BOX",idtmed[503],parfp,3);
 270   // positioning 2 HONY Layers on FSTR volume
 271
 272   posfp[1]=-khstripy*0.5+parfp[1];
 273   gMC->Gspos("FHON",1,"FSTR",0., posfp[1],0.,0,"ONLY");
 274   gMC->Gspos("FHON",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 275
 276   //-- PCB Layer definition
 277   parfp[1] = khpcby*0.5;
 278   gMC->Gsvolu("FPCB","BOX",idtmed[504],parfp,3);
 279   // positioning 2 PCB Layers on FSTR volume
 280   posfp[1]=-khstripy*0.5+khhony+parfp[1];
 281   gMC->Gspos("FPCB",1,"FSTR",0., posfp[1],0.,0,"ONLY");
 282   gMC->Gspos("FPCB",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 283   // positioning the central PCB layer
 284   gMC->Gspos("FPCB",3,"FSTR",0.,0.,0.,0,"ONLY");
 285
 286
 287
 288   //-- MYLAR Layer definition
 289   parfp[1] = khmyly*0.5;
 290   gMC->Gsvolu("FMYL","BOX",idtmed[511],parfp,3);
 291   // positioning 2 MYLAR Layers on FSTR volume
 292   posfp[1] = -khstripy*0.5+khhony+khpcby+parfp[1];
 293   gMC->Gspos("FMYL",1,"FSTR",0., posfp[1],0.,0,"ONLY");
 294   gMC->Gspos("FMYL",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 295   // adding further 2 MYLAR Layers on FSTR volume
 296   posfp[1] = khpcby*0.5+parfp[1];
 297   gMC->Gspos("FMYL",3,"FSTR",0., posfp[1],0.,0,"ONLY");
 298   gMC->Gspos("FMYL",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 299
 300
 301   //-- Graphite Layer definition
 302   parfp[1] = khgraphy*0.5;
 303   gMC->Gsvolu("FGRP","BOX",idtmed[502],parfp,3);
 304   // positioning 2 Graphite Layers on FSTR volume
 305   posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+parfp[1];
 306   gMC->Gspos("FGRP",1,"FSTR",0., posfp[1],0.,0,"ONLY");
 307   gMC->Gspos("FGRP",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 308   // adding further 2 Graphite Layers on FSTR volume
 309   posfp[1] = khpcby*0.5+khmyly+parfp[1];
 310   gMC->Gspos("FGRP",3,"FSTR",0., posfp[1],0.,0,"ONLY");
 311   gMC->Gspos("FGRP",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 312
 313
 314   //-- Glass (EXT. +Semi INT.) Layer definition
 315   parfp[1] = khglasseiy*0.5;
 316   gMC->Gsvolu("FGLA","BOX",idtmed[514],parfp,3);
 317   // positioning 2 Glass Layers on FSTR volume
 318   posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+khgraphy+parfp[1];
 319   gMC->Gspos("FGLA",1,"FSTR",0., posfp[1],0.,0,"ONLY");
 320   gMC->Gspos("FGLA",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 321   // adding further 2 Glass Layers on FSTR volume
 322   posfp[1] = khpcby*0.5+khmyly+khgraphy+parfp[1];
 323   gMC->Gspos("FGLA",3,"FSTR",0., posfp[1],0.,0,"ONLY");
 324   gMC->Gspos("FGLA",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 325
 326
 327   //-- Sensitive Mixture Layer definition
 328   parfp[0] = klsensmx*0.5;
 329   parfp[1] = khsensmy*0.5;
 330   parfp[2] = kwsensmz*0.5;
 331   gMC->Gsvolu("FSEN","BOX",idtmed[513],parfp,3);
 332   gMC->Gsvolu("FNSE","BOX",idtmed[512],parfp,3);
 333   // positioning 2 gas Layers on FSTR volume
 334   // the upper is insensitive freon
 335   // while the remaining is sensitive
 336   posfp[1] = khpcby*0.5+khmyly+khgraphy+khglasseiy+parfp[1];
 337   gMC->Gspos("FNSE",0,"FSTR", 0., posfp[1],0.,0,"ONLY");
 338   gMC->Gspos("FSEN",0,"FSTR", 0.,-posfp[1],0.,0,"ONLY");
 339
 340   // dividing FSEN along z in knz=2 and along x in knx=48
 341   gMC->Gsdvn("FSEZ","FSEN",knz,3);
 342   gMC->Gsdvn("FSEX","FSEZ",knx,1);
 343
 344   // FPAD volume definition
 345   parfp[0] = klpadx*0.5;
 346   parfp[1] = khsensmy*0.5;
 347   parfp[2] = kwpadz*0.5;
 348   gMC->Gsvolu("FPAD","BOX",idtmed[513],parfp,3);
 349   // positioning the FPAD volumes on previous divisions
 350   gMC->Gspos("FPAD",0,"FSEX",0.,0.,0.,0,"ONLY");
 351
 352   ////  Positioning the Strips  (FSTR) in the FLT volumes  /////
 353
 354   // Plate A (Central)
 355
 356   Float_t t = zFLTC+zFLTB+zFLTA*0.5+ 2*db;//Half Width of Barrel
 357
 358   Float_t gap  = fGapA+0.5; //cm  updated distance between the strip axis
 359   Float_t zpos = 0;
 360   Float_t ang  = 0;
 361   Int_t j=1; // AdC
 362   nrot  = 0;
 363   zcoor = 0;
 364   ycoor = -14.5 + kspace ; //2 cm over front plate
 365
 366   AliMatrix (idrotm[0],  90.,  0.,90.,90.,0., 90.);
 367
 368   Int_t centerLoc= (Int_t)(fNStripA/2.) + 1; // AdC
 369
 370   //gMC->Gspos("FSTR",j,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY");
 371   gMC->Gspos("FSTR",centerLoc,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY"); // AdC
 372   if(fDebug>=1) {
 373     printf("%s: %f,  St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,j); // AdC
 374     printf("y = %f,  z = %f, zpos = %f \n",ycoor,zcoor,zpos);
 375   }
 376   zcoor -= zSenStrip;
 377   //j++; // AdC
 378   Int_t upDown = -1; // upDown=-1 -> Upper strip
 379                      // upDown=+1 -> Lower strip
 380   do{
 381      ang = atan(zcoor/radius);
 382      ang *= kRaddeg;
 383      AliMatrix (idrotm[nrot],  90.,  0.,90.-ang,90.,-ang, 90.);
 384      AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
 385      ang /= kRaddeg;
 386      ycoor = -14.5+ kspace; //2 cm over front plate
 387      ycoor += (1-(upDown+1)/2)*gap;
 388      //gMC->Gspos("FSTR",j  ,"FLTA",0.,ycoor, zcoor,idrotm[nrot],  "ONLY");
 389      //gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
 390      gMC->Gspos("FSTR",centerLoc-j,"FLTA",0.,ycoor, zcoor,idrotm[nrot],  "ONLY"); // AdC
 391      gMC->Gspos("FSTR",centerLoc+j,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY"); // AdC
 392      if(fDebug>=1) {
 393        printf("%s: %f,  St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,j); // AdC
 394        printf("y = %f,  z = %f, zpos = %f \n",ycoor,zcoor,zpos);
 395      }
 396      j++; //j += 2; // AdC
 397      upDown*= -1; // Alternate strips
 398      zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
 399              upDown*gap*TMath::Tan(ang)-
 400              (zSenStrip/2)/TMath::Cos(ang);
 401   } while (zcoor-(stripWidth/2)*TMath::Cos(ang)>-t+zFLTC+zFLTB+db*2);
 402
 403   zcoor = zcoor+(zSenStrip/2)/TMath::Cos(ang)+
 404           upDown*gap*TMath::Tan(ang)+
 405           (zSenStrip/2)/TMath::Cos(ang);
 406
 407   gap = fGapB;
 408   zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
 409           upDown*gap*TMath::Tan(ang)-
 410           (zSenStrip/2)/TMath::Cos(ang);
 411
 412   ang = atan(zcoor/radius);
 413   ang *= kRaddeg;
 414   AliMatrix (idrotm[nrot],  90.,  0.,90.-ang,90.,-ang, 90.);
 415   AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
 416   ang /= kRaddeg;
 417
 418   ycoor = -14.5+ kspace; //2 cm over front plate
 419   ycoor += (1-(upDown+1)/2)*gap;
 420   //gMC->Gspos("FSTR",j  ,"FLTA",0.,ycoor, zcoor,idrotm[nrot],  "ONLY");
 421   //gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
 422   gMC->Gspos("FSTR",centerLoc-j,"FLTA",0.,ycoor, zcoor,idrotm[nrot],  "ONLY"); // AdC
 423   gMC->Gspos("FSTR",centerLoc+j,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY"); // AdC
 424   if(fDebug>=1) {
 425     printf("%s: %f,  St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,j); // AdC
 426     printf("y = %f,  z = %f, zpos = %f \n",ycoor,zcoor,zpos);
 427   }
 428   ycoor = -hTof/2.+ kspace;//2 cm over front plate
 429
 430   // Plate  B
 431
 432   nrot = 0;
 433   Int_t i=1; // AdC
 434   upDown = 1;
 435   Float_t deadRegion = 1.0;//cm
 436
 437   zpos = zcoor - (zSenStrip/2)/TMath::Cos(ang)-
 438          upDown*gap*TMath::Tan(ang)-
 439          (zSenStrip/2)/TMath::Cos(ang)-
 440          deadRegion/TMath::Cos(ang);
 441
 442   ang = atan(zpos/radius);
 443   ang *= kRaddeg;
 444   AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
 445   ang /= kRaddeg;
 446   ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
 447   ycoor += (1-(upDown+1)/2)*gap;
 448   zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
 449   gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
 450   if(fDebug>=1) {
 451      printf("%s: %f,  St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
 452      printf("y = %f,  z = %f, zpos = %f \n",ycoor,zcoor,zpos);
 453   }
 454   i++;
 455   upDown*=-1;
 456
 457   do {
 458      zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)-
 459             upDown*gap*TMath::Tan(ang)-
 460             (zSenStrip/2)/TMath::Cos(ang);
 461      ang = atan(zpos/radius);
 462      ang *= kRaddeg;
 463      AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
 464      ang /= kRaddeg;
 465      Float_t deltaSpaceinB=-0.5; // [cm] to avoid overlaps with the end of freon frame
 466      Float_t deltaGapinB=0.5;    // [cm] to avoid overlaps in between initial strips
 467      ycoor = -hTof*0.5+ kspace+deltaSpaceinB ; //2 cm over front plate
 468      ycoor += (1-(upDown+1)/2)*(gap+deltaGapinB);
 469      zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
 470      gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
 471      if(fDebug>=1) {
 472         printf("%s: %f,  St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
 473         printf("y = %f,  z = %f, zpos = %f \n",ycoor,zcoor,zpos);
 474      }
 475      upDown*=-1;
 476      i++;
 477   } while (TMath::Abs(ang*kRaddeg)<22.5);
 478   //till we reach a tilting angle of 22.5 degrees
 479
 480   ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
 481   zpos = zpos - zSenStrip/TMath::Cos(ang);
 482   // this avoid overlaps in between outer strips in plate B
 483   Float_t deltaMovingUp=0.8;    // [cm]
 484   Float_t deltaMovingDown=-0.5; // [cm]
 485
 486   do {
 487      ang = atan(zpos/radius);
 488      ang *= kRaddeg;
 489      AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
 490      ang /= kRaddeg;
 491      zcoor = zpos+(zFLTB/2+zFLTA/2+db);
 492      gMC->Gspos("FSTR",i, "FLTB", 0., ycoor+deltaMovingDown+deltaMovingUp, zcoor,idrotm[nrot], "ONLY");
 493      deltaMovingUp+=0.8; // update delta moving toward the end of the plate
 494      zpos = zpos - zSenStrip/TMath::Cos(ang);
 495      if(fDebug>=1) {
 496        printf("%s: %f,  St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
 497        printf("y = %f,  z = %f, zpos = %f \n",ycoor,zcoor,zpos);
 498      }
 499      i++;
 500
 501   }  while (zpos-stripWidth*0.5/TMath::Cos(ang)>-t+zFLTC+db);
 502
 503   // Plate  C
 504
 505   zpos = zpos + zSenStrip/TMath::Cos(ang);
 506
 507   zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)+
 508          gap*TMath::Tan(ang)-
 509          (zSenStrip/2)/TMath::Cos(ang);
 510
 511   nrot = 0;
 512   i=0;
 513   Float_t deltaGap=-2.5; // [cm] update distance from strip center and plate
 514   ycoor= -hTof*0.5+kspace+gap+deltaGap;
 515
 516   do {
 517      i++;
 518      ang = atan(zpos/radius);
 519      ang *= kRaddeg;
 520      AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
 521      ang /= kRaddeg;
 522      zcoor = zpos+(zFLTC*0.5+zFLTB+zFLTA*0.5+db*2);
 523      gMC->Gspos("FSTR",i, "FLTC", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
 524      if(fDebug>=1) {
 525        printf("%s: %f,  St. %2i, Pl.5 ",ClassName(),ang*kRaddeg,i);
 526        printf("y = %f,  z = %f, zpos = %f \n",ycoor,zcoor,zpos);
 527      }
 528      zpos = zpos - zSenStrip/TMath::Cos(ang);
 529   }  while (zpos-stripWidth*TMath::Cos(ang)*0.5>-t);
 530
 531
 532   ////////// Layers after strips /////////////////
 533   // Al Layer thickness (2.3mm) factor 0.7
 534
 535   Float_t overSpace = fOverSpc;//cm
 536
 537   par[0] = xFLT*0.5;
 538   par[1] = 0.115*0.7; // factor 0.7
 539   par[2] = (zFLTA *0.5);
 540   ycoor = -yFLT/2 + overSpace + par[1];
 541   gMC->Gsvolu("FPEA", "BOX ", idtmed[508], par, 3); // Al
 542   gMC->Gspos ("FPEA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
 543   par[2] = (zFLTB *0.5);
 544   gMC->Gsvolu("FPEB", "BOX ", idtmed[508], par, 3); // Al
 545   gMC->Gspos ("FPEB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
 546   par[2] = (zFLTC *0.5);
 547   gMC->Gsvolu("FPEC", "BOX ", idtmed[508], par, 3); // Al
 548   gMC->Gspos ("FPEC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
 549
 550
 551   // plexiglass thickness: 1.5 mm ; factor 0.3
 552   ycoor += par[1];
 553   par[0] = xFLT*0.5;
 554   par[1] = 0.075*0.3; // factor 0.3
 555   par[2] = (zFLTA *0.5);
 556   ycoor += par[1];
 557   gMC->Gsvolu("FECA", "BOX ", idtmed[505], par, 3); // Plexigl.
 558   gMC->Gspos ("FECA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
 559   par[2] = (zFLTB *0.5);
 560   gMC->Gsvolu("FECB", "BOX ", idtmed[505], par, 3); // Plexigl.
 561   gMC->Gspos ("FECB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
 562   par[2] = (zFLTC *0.5);
 563   gMC->Gsvolu("FECC", "BOX ", idtmed[505], par, 3); // Plexigl.
 564   gMC->Gspos ("FECC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
 565
 566   // frame of Air
 567   ycoor += par[1];
 568   par[0] = xFLT*0.5;
 569   par[1] = (yFLT/2-ycoor-khAlWall)*0.5; // Aluminum layer considered (0.18 cm)
 570   par[2] = (zFLTA *0.5);
 571   ycoor += par[1];
 572   gMC->Gsvolu("FAIA", "BOX ", idtmed[500], par, 3); // Air
 573   gMC->Gspos ("FAIA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
 574   par[2] = (zFLTB *0.5);
 575   gMC->Gsvolu("FAIB", "BOX ", idtmed[500], par, 3); // Air
 576   gMC->Gspos ("FAIB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
 577   par[2] = (zFLTC *0.5);
 578   gMC->Gsvolu("FAIC", "BOX ", idtmed[500], par, 3); // Air
 579   gMC->Gspos ("FAIC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
 580
 581
 582   // start with cards and cooling tubes
 583   // finally, cards, cooling tubes and layer for thermal dispersion
 584   // 3 volumes
 585   // card volume definition
 586
 587   // see GEOM200 in GEANT manual
 588   AliMatrix(idrotm[98], 90., 0., 90., 90., 0., 0.); // 0 deg
 589
 590   Float_t cardpar[3];
 591   cardpar[0]= 61.;
 592   cardpar[1]= 5.;
 593   cardpar[2]= 0.1;
 594   gMC->Gsvolu("FCAR", "BOX ", idtmed[504], cardpar, 3); // PCB Card
 595   //alu plate volume definition
 596   cardpar[1]= 3.5;
 597   cardpar[2]= 0.05;
 598   gMC->Gsvolu("FALP", "BOX ", idtmed[508], cardpar, 3); // Alu Plate
 599
 600
 601   // central module positioning (FAIA)
 602   Float_t cardpos[3], aplpos2, stepforcardA=6.625;
 603   cardpos[0]= 0.;
 604   cardpos[1]= -0.5;
 605   cardpos[2]= -53.;
 606   Float_t aplpos1 = -2.;
 607   Int_t icard;
 608   for (icard=0; icard<15; ++icard) {
 609     cardpos[2]= cardpos[2]+stepforcardA;
 610     aplpos2 = cardpos[2]+0.15;
 611     gMC->Gspos("FCAR",icard,"FAIA",cardpos[0],cardpos[1],cardpos[2],idrotm[98],"ONLY");
 612     gMC->Gspos("FALP",icard,"FAIA",cardpos[0],aplpos1,aplpos2,idrotm[98],"ONLY");
 613
 614   }
 615
 616
 617   // intermediate module positioning (FAIB)
 618   Float_t stepforcardB= 7.05;
 619   cardpos[2]= -70.5;
 620   for (icard=0; icard<19; ++icard) {
 621     cardpos[2]= cardpos[2]+stepforcardB;
 622     aplpos2 = cardpos[2]+0.15;
 623     gMC->Gspos("FCAR",icard,"FAIB",cardpos[0],cardpos[1],cardpos[2],idrotm[98],"ONLY");
 624     gMC->Gspos("FALP",icard,"FAIB",cardpos[0],aplpos1,aplpos2,idrotm[98],"ONLY");
 625   }
 626
 627
 628   // outer module positioning (FAIC)
 629   Float_t stepforcardC= 8.45238;
 630   cardpos[2]= -88.75;
 631   for (icard=0; icard<20; ++icard) {
 632     cardpos[2]= cardpos[2]+stepforcardC;
 633     aplpos2 = cardpos[2]+0.15;
 634     gMC->Gspos("FCAR",icard,"FAIC",cardpos[0],cardpos[1],cardpos[2],idrotm[98],"ONLY");
 635     gMC->Gspos("FALP",icard,"FAIC",cardpos[0],aplpos1,aplpos2,idrotm[98],"ONLY");
 636   }
 637
 638   // tube volume definition
 639   Float_t tubepar[3];
 640   tubepar[0]= 0.;
 641   tubepar[1]= 0.4;
 642   tubepar[2]= 61.;
 643   gMC->Gsvolu("FTUB", "TUBE", idtmed[516], tubepar, 3); // cooling tubes (steel)
 644   tubepar[0]= 0.;
 645   tubepar[1]= 0.35;
 646   tubepar[2]= 61.;
 647   gMC->Gsvolu("FITU", "TUBE", idtmed[515], tubepar, 3); // cooling water
 648   // positioning water tube into the steel one
 649   gMC->Gspos("FITU",1,"FTUB",0.,0.,0.,0,"ONLY");
 650
 651
 652   // rotation matrix
 653   AliMatrix(idrotm[99], 180., 90., 90., 90., 90., 0.);
 654   // central module positioning (FAIA)
 655   Float_t tubepos[3], tdis=0.6;
 656   tubepos[0]= 0.;
 657   tubepos[1]= cardpos[1];
 658   tubepos[2]= -53.+tdis;
 659   //  tub1pos = 5.;
 660   Int_t itub;
 661   for (itub=0; itub<15; ++itub) {
 662     tubepos[2]= tubepos[2]+stepforcardA;
 663     gMC->Gspos("FTUB",itub,"FAIA",tubepos[0],tubepos[1],tubepos[2],idrotm[99],
 664                "ONLY");
 665   }
 666
 667
 668   // intermediate module positioning (FAIB)
 669   tubepos[2]= -70.5+tdis;
 670   for (itub=0; itub<19; ++itub) {
 671     tubepos[2]= tubepos[2]+stepforcardB;
 672     gMC->Gspos("FTUB",itub,"FAIB",tubepos[0],tubepos[1],tubepos[2],idrotm[99],
 673                "ONLY");
 674   }
 675
 676   // outer module positioning (FAIC)
 677   tubepos[2]= -88.75+tdis;
 678   for (itub=0; itub<20; ++itub) {
 679     tubepos[2]= tubepos[2]+stepforcardC;
 680     gMC->Gspos("FTUB",itub,"FAIC",tubepos[0],tubepos[1],tubepos[2],idrotm[99],
 681                "ONLY");
 682   }
 683
 684 }
 685
 686 //_____________________________________________________________________________
 687 void AliTOFv4::DrawModule() const
 688 {
 689   //
 690   // Draw a shaded view of the Time Of Flight version 4
 691   //
 692   // Set everything unseen
 693   gMC->Gsatt("*", "seen", -1);
 694   //
 695   // Set ALIC mother transparent
 696   gMC->Gsatt("ALIC","SEEN",0);
 697   //
 698   // Set the volumes visible
 699   gMC->Gsatt("ALIC","SEEN",0);
 700
 701   gMC->Gsatt("FTOA","SEEN",1);
 702   gMC->Gsatt("FTOB","SEEN",1);
 703   gMC->Gsatt("FTOC","SEEN",1);
 704   gMC->Gsatt("FLTA","SEEN",1);
 705   gMC->Gsatt("FLTB","SEEN",1);
 706   gMC->Gsatt("FLTC","SEEN",1);
 707   gMC->Gsatt("FPLA","SEEN",1);
 708   gMC->Gsatt("FPLB","SEEN",1);
 709   gMC->Gsatt("FPLC","SEEN",1);
 710   gMC->Gsatt("FSTR","SEEN",1);
 711   gMC->Gsatt("FPEA","SEEN",1);
 712   gMC->Gsatt("FPEB","SEEN",1);
 713   gMC->Gsatt("FPEC","SEEN",1);
 714
 715   gMC->Gsatt("FLZ1","SEEN",0);
 716   gMC->Gsatt("FLZ2","SEEN",0);
 717   gMC->Gsatt("FLZ3","SEEN",0);
 718   gMC->Gsatt("FLX1","SEEN",0);
 719   gMC->Gsatt("FLX2","SEEN",0);
 720   gMC->Gsatt("FLX3","SEEN",0);
 721   gMC->Gsatt("FPAD","SEEN",0);
 722
 723   gMC->Gdopt("hide", "on");
 724   gMC->Gdopt("shad", "on");
 725   gMC->Gsatt("*", "fill", 7);
 726   gMC->SetClipBox(".");
 727   gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
 728   gMC->DefaultRange();
 729   gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
 730   gMC->Gdhead(1111, "Time Of Flight");
 731   gMC->Gdman(18, 4, "MAN");
 732   gMC->Gdopt("hide","off");
 733 }
 734 //_____________________________________________________________________________
 735 void AliTOFv4::DrawDetectorModules()
 736 {
 737 //
 738 // Draw a shaded view of the TOF detector version 4
 739 //
 740
 741
 742 //Set ALIC mother transparent
 743  gMC->Gsatt("ALIC","SEEN",0);
 744
 745 //
 746 //Set volumes visible
 747 //
 748 //=====> Level 1
 749   // Level 1 for TOF volumes
 750   gMC->Gsatt("B077","seen",0);
 751
 752
 753 //==========> Level 2
 754   // Level 2
 755   gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
 756   gMC->Gsatt("B071","seen",0);
 757   gMC->Gsatt("B074","seen",0);
 758   gMC->Gsatt("B075","seen",0);
 759   gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
 760
 761
 762   // Level 2 of B071
 763   gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped   -
 764   gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped   -
 765   gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped   -
 766   gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped   -
 767   gMC->Gsatt("B056","seen",0);  // B056 does not has sub-levels  -
 768   gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped   -
 769   gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped   -
 770   gMC->Gsatt("BTR1","seen",0);  // BTR1 do not have sub-levels   -
 771   gMC->Gsatt("BTO1","seen",0);
 772
 773
 774   // Level 2 of B074
 775   gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
 776   gMC->Gsatt("BTO2","seen",0);
 777
 778   // Level 2 of B075
 779   gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
 780   gMC->Gsatt("BTO3","seen",0);
 781
 782 // ==================> Level 3
 783   // Level 3 of B071 / Level 2 of BTO1
 784   gMC->Gsatt("FTOC","seen",-2);
 785   gMC->Gsatt("FTOB","seen",-2);
 786   gMC->Gsatt("FTOA","seen",-2);
 787
 788   // Level 3 of B074 / Level 2 of BTO2
 789   // -> cfr previous settings
 790
 791   // Level 3 of B075 / Level 2 of BTO3
 792   // -> cfr previous settings
 793
 794   gMC->Gdopt("hide","on");
 795   gMC->Gdopt("shad","on");
 796   gMC->Gsatt("*", "fill", 5);
 797   gMC->SetClipBox(".");
 798   gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
 799   gMC->DefaultRange();
 800   gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
 801   gMC->Gdhead(1111,"TOF detector V1");
 802   gMC->Gdman(18, 4, "MAN");
 803   gMC->Gdopt("hide","off");
 804 }
 805
 806 //_____________________________________________________________________________
 807 void AliTOFv4::DrawDetectorStrips()
 808 {
 809 //
 810 // Draw a shaded view of the TOF strips for version 4
 811 //
 812
 813 //Set ALIC mother transparent
 814  gMC->Gsatt("ALIC","SEEN",0);
 815
 816 //
 817 //Set volumes visible
 818 //=====> Level 1
 819   // Level 1 for TOF volumes
 820   gMC->Gsatt("B077","seen",0);
 821
 822 //==========> Level 2
 823   // Level 2
 824   gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
 825   gMC->Gsatt("B071","seen",0);
 826   gMC->Gsatt("B074","seen",0);
 827   gMC->Gsatt("B075","seen",0);
 828   gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
 829
 830   // Level 2 of B071
 831   gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped   -
 832   gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped   -
 833   gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped   -
 834   gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped   -
 835   gMC->Gsatt("B056","seen",0);  // B056 does not has sub-levels  -
 836   gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped   -
 837   gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped   -
 838   gMC->Gsatt("BTR1","seen",0);  // BTR1 do not have sub-levels   -
 839   gMC->Gsatt("BTO1","seen",0);
 840
 841 // ==================> Level 3
 842   // Level 3 of B071 / Level 2 of BTO1
 843   gMC->Gsatt("FTOC","seen",0);
 844   gMC->Gsatt("FTOB","seen",0);
 845   gMC->Gsatt("FTOA","seen",0);
 846
 847   // Level 3 of B074 / Level 2 of BTO2
 848   // -> cfr previous settings
 849
 850   // Level 3 of B075 / Level 2 of BTO3
 851   // -> cfr previous settings
 852
 853
 854 // ==========================> Level 4
 855   // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOC
 856   gMC->Gsatt("FLTC","seen",0);
 857   // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOB
 858   gMC->Gsatt("FLTB","seen",0);
 859   // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOA
 860   gMC->Gsatt("FLTA","seen",0);
 861
 862   // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOC
 863   // -> cfr previous settings
 864   // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOB
 865   // -> cfr previous settings
 866
 867   // Level 4 of B075 / Level 3 of BTO3 / Level 2 of FTOC
 868   // -> cfr previous settings
 869
 870 //======================================> Level 5
 871   // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOC / Level 2 of FLTC
 872   gMC->Gsatt("FALC","seen",0); // no children for FALC
 873   gMC->Gsatt("FSTR","seen",-2);
 874   gMC->Gsatt("FPEC","seen",0); // no children for FPEC
 875   gMC->Gsatt("FECC","seen",0); // no children for FECC
 876   gMC->Gsatt("FWAC","seen",0); // no children for FWAC
 877   gMC->Gsatt("FAIC","seen",0); // no children for FAIC
 878
 879   // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOB / Level 2 of FLTB
 880   gMC->Gsatt("FALB","seen",0); // no children for FALB
 881 //-->  gMC->Gsatt("FSTR","seen",-2);
 882
 883
 884   // -> cfr previous settings
 885   gMC->Gsatt("FPEB","seen",0); // no children for FPEB
 886   gMC->Gsatt("FECB","seen",0); // no children for FECB
 887   gMC->Gsatt("FWAB","seen",0); // no children for FWAB
 888   gMC->Gsatt("FAIB","seen",0); // no children for FAIB
 889
 890   // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOA / Level 2 of FLTA
 891   gMC->Gsatt("FALA","seen",0); // no children for FALB
 892 //-->  gMC->Gsatt("FSTR","seen",-2);
 893   // -> cfr previous settings
 894   gMC->Gsatt("FPEA","seen",0); // no children for FPEA
 895   gMC->Gsatt("FECA","seen",0); // no children for FECA
 896   gMC->Gsatt("FWAA","seen",0); // no children for FWAA
 897   gMC->Gsatt("FAIA","seen",0); // no children for FAIA
 898
 899   // Level 2 of B074
 900   gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
 901   gMC->Gsatt("BTO2","seen",0);
 902
 903   // Level 2 of B075
 904   gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
 905   gMC->Gsatt("BTO3","seen",0);
 906
 907 // for others Level 5, cfr. previous settings
 908
 909   gMC->Gdopt("hide","on");
 910   gMC->Gdopt("shad","on");
 911   gMC->Gsatt("*", "fill", 5);
 912   gMC->SetClipBox(".");
 913   gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
 914   gMC->DefaultRange();
 915   gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
 916   gMC->Gdhead(1111,"TOF Strips V1");
 917   gMC->Gdman(18, 4, "MAN");
 918   gMC->Gdopt("hide","off");
 919 }
 920
 921 //_____________________________________________________________________________
 922 void AliTOFv4::CreateMaterials()
 923 {
 924   //
 925   // Define materials for the Time Of Flight
 926   //
 927   AliTOF::CreateMaterials();
 928 }
 929
 930 //_____________________________________________________________________________
 931 void AliTOFv4::Init()
 932 {
 933   //
 934   // Initialise the detector after the geometry has been defined
 935   //
 936   if(fDebug) {
 937     printf("%s: **************************************"
 938            "  TOF  "
 939            "**************************************\n",ClassName());
 940     printf("\n%s:   Version 4 of TOF initialing, "
 941                 "symmetric TOF - Full Coverage version\n",ClassName());
 942   }
 943
 944   AliTOF::Init();
 945
 946   fIdFTOA = gMC->VolId("FTOA");
 947   fIdFTOB = gMC->VolId("FTOB");
 948   fIdFTOC = gMC->VolId("FTOC");
 949   fIdFLTA = gMC->VolId("FLTA");
 950   fIdFLTB = gMC->VolId("FLTB");
 951   fIdFLTC = gMC->VolId("FLTC");
 952
 953   if(fDebug) {
 954     printf("%s: **************************************"
 955            "  TOF  "
 956            "**************************************\n",ClassName());
 957   }
 958 }
 959
 960 //_____________________________________________________________________________
 961 void AliTOFv4::StepManager()
 962 {
 963   //
 964   // Procedure called at each step in the Time Of Flight
 965   //
 966   TLorentzVector mom, pos;
 967   Float_t xm[3],pm[3],xpad[3],ppad[3];
 968   Float_t hits[13],phi,phid,z;
 969   Int_t   vol[5];
 970   Int_t   sector, plate, padx, padz, strip;
 971   Int_t   copy, padzid, padxid, stripid, i;
 972   Int_t   *idtmed = fIdtmed->GetArray()-499;
 973   Float_t incidenceAngle;
 974
 975   if(gMC->CurrentMedium()==idtmed[513] &&
 976      gMC->IsTrackEntering() && gMC->TrackCharge()
 977      && gMC->CurrentVolID(copy)==fIdSens)
 978   {
 979     // getting information about hit volumes
 980
 981     padzid=gMC->CurrentVolOffID(2,copy);
 982     padz=copy;
 983
 984     padxid=gMC->CurrentVolOffID(1,copy);
 985     padx=copy;
 986
 987     stripid=gMC->CurrentVolOffID(4,copy);
 988     strip=copy;
 989
 990     gMC->TrackPosition(pos);
 991     gMC->TrackMomentum(mom);
 992
 993 //    Double_t NormPos=1./pos.Rho();
 994     Double_t normMom=1./mom.Rho();
 995
 996 //  getting the cohordinates in pad ref system
 997     xm[0] = (Float_t)pos.X();
 998     xm[1] = (Float_t)pos.Y();
 999     xm[2] = (Float_t)pos.Z();
1000
1001     pm[0] = (Float_t)mom.X()*normMom;
1002     pm[1] = (Float_t)mom.Y()*normMom;
1003     pm[2] = (Float_t)mom.Z()*normMom;
1004
1005     gMC->Gmtod(xm,xpad,1);
1006     gMC->Gmtod(pm,ppad,2);
1007
1008     incidenceAngle = TMath::ACos(ppad[1])*kRaddeg;
1009
1010     z = pos[2];
1011
1012     plate = 0;
1013     if (TMath::Abs(z) <=  fZlenA*0.5)  plate = 2; //3; // AdC
1014     if (z < (fZlenA*0.5+fZlenB) &&
1015         z >  fZlenA*0.5)               plate = 1; //4; // AdC
1016     if (z >-(fZlenA*0.5+fZlenB) &&
1017         z < -fZlenA*0.5)               plate = 3; //2; // AdC
1018     if (z > (fZlenA*0.5+fZlenB))       plate = 0; //5; // AdC
1019     if (z <-(fZlenA*0.5+fZlenB))       plate = 4; //1; // AdC
1020
1021     if (plate==0) strip=AliTOFConstants::fgkNStripC-strip; // AdC
1022     else if (plate==1) strip=AliTOFConstants::fgkNStripB-strip; // AdC
1023     else strip--; // AdC
1024
1025     if (z<=0.) padx=AliTOFConstants::fgkNpadX-padx; // AdC
1026     else padx--; // AdC
1027
1028     if (plate==3 || plate==4) padz=AliTOFConstants::fgkNpadZ-padz; // AdC
1029     else padz--; // AdC
1030
1031     phi = pos.Phi();
1032     if (phi>=0.) phid = phi*kRaddeg; //+180.; // AdC
1033     else phid = phi*kRaddeg + 360.; // AdC
1034     sector = Int_t (phid/20.); // AdC
1035     //sector++; // AdC
1036
1037     for(i=0;i<3;++i) {
1038       hits[i]   = pos[i];
1039       hits[i+3] = pm[i];
1040     }
1041
1042     hits[6] = mom.Rho();
1043     hits[7] = pos[3];
1044     hits[8] = xpad[0];
1045     hits[9] = xpad[1];
1046     hits[10]= xpad[2];
1047     hits[11]= incidenceAngle;
1048     hits[12]= gMC->Edep();
1049
1050     vol[0]= sector;
1051     vol[1]= plate;
1052     vol[2]= strip;
1053     vol[3]= padx;
1054     vol[4]= padz;
1055
1056     AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(),vol, hits);
1057   }
1058 }