TOF/AliTOFv4.cxx

   1 /**************************************************************************
   2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
   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 <TLorentzVector.h>
  51 #include <TObject.h>
  52 #include <TVirtualMC.h>
  53
  54 #include "AliConst.h"
  55 #include "AliRun.h"
  56 #include "AliTOFv4.h"
  57 #include "AliTOFConstants.h" // AdC
  58 #include "AliMC.h"
  59
  60 ClassImp(AliTOFv4)
  61
  62 //_____________________________________________________________________________
  63 AliTOFv4::AliTOFv4()
  64 {
  65   //
  66   // Default constructor
  67   //
  68 }
  69
  70 //_____________________________________________________________________________
  71 AliTOFv4::AliTOFv4(const char *name, const char *title)
  72         : AliTOF(name,title)
  73 {
  74   //
  75   // Standard constructor
  76   //
  77   //
  78   // Check that FRAME is there otherwise we have no place where to
  79   // put TOF
  80   AliModule* frame=gAlice->GetModule("FRAME");
  81   if(!frame) {
  82     Error("Ctor","TOF needs FRAME to be present\n");
  83     exit(1);
  84   } else
  85     if(frame->IsVersion()!=1) {
  86       Error("Ctor","FRAME version 1 needed with this version of TOF\n");
  87       exit(1);
  88     }
  89
  90 }
  91
  92 //_____________________________________________________________________________
  93 void AliTOFv4::CreateGeometry()
  94 {
  95   //
  96   // Create geometry for Time Of Flight version 0
  97   //
  98   //Begin_Html
  99   /*
 100     <img src="picts/AliTOFv4.gif">
 101   */
 102   //End_Html
 103   //
 104   // Creates common geometry
 105   //
 106   AliTOF::CreateGeometry();
 107 }
 108
 109 //_____________________________________________________________________________
 110 void AliTOFv4::TOFpc(Float_t xtof, Float_t ytof, Float_t zlenC,
 111                      Float_t zlenB, Float_t zlenA, Float_t ztof0)
 112 {
 113   //
 114   // Definition of the Time Of Fligh Resistive Plate Chambers
 115   // xFLT, yFLT, zFLT - sizes of TOF modules (large)
 116
 117   Float_t  ycoor, zcoor;
 118   Float_t  par[3];
 119   Int_t    *idtmed = fIdtmed->GetArray()-499;
 120   Int_t    idrotm[100];
 121   Int_t    nrot = 0;
 122   Float_t  hTof = fRmax-fRmin;
 123
 124   Float_t radius = fRmin+2.;//cm
 125
 126   par[0] =  xtof * 0.5;
 127   par[1] =  ytof * 0.5;
 128   par[2] = zlenC * 0.5;
 129   gMC->Gsvolu("FTOC", "BOX ", idtmed[506], par, 3);
 130   par[2] = zlenB * 0.5;
 131   gMC->Gsvolu("FTOB", "BOX ", idtmed[506], par, 3);
 132   par[2] = zlenA * 0.5;
 133   gMC->Gsvolu("FTOA", "BOX ", idtmed[506], par, 3);
 134
 135
 136   // Positioning of modules
 137
 138   Float_t zcor1 = ztof0 - zlenC*0.5;
 139   Float_t zcor2 = ztof0 - zlenC - zlenB*0.5;
 140   Float_t zcor3 = 0.;
 141
 142   AliMatrix(idrotm[0], 90.,  0., 0., 0., 90,-90.);
 143   AliMatrix(idrotm[1], 90.,180., 0., 0., 90, 90.);
 144   gMC->Gspos("FTOC", 1, "BTO1", 0,  zcor1, 0, idrotm[0], "ONLY");
 145   gMC->Gspos("FTOC", 2, "BTO1", 0, -zcor1, 0, idrotm[1], "ONLY");
 146   gMC->Gspos("FTOC", 1, "BTO2", 0,  zcor1, 0, idrotm[0], "ONLY");
 147   gMC->Gspos("FTOC", 2, "BTO2", 0, -zcor1, 0, idrotm[1], "ONLY");
 148   gMC->Gspos("FTOC", 1, "BTO3", 0,  zcor1, 0, idrotm[0], "ONLY");
 149   gMC->Gspos("FTOC", 2, "BTO3", 0, -zcor1, 0, idrotm[1], "ONLY");
 150
 151   gMC->Gspos("FTOB", 1, "BTO1", 0,  zcor2, 0, idrotm[0], "ONLY");
 152   gMC->Gspos("FTOB", 2, "BTO1", 0, -zcor2, 0, idrotm[1], "ONLY");
 153   gMC->Gspos("FTOB", 1, "BTO2", 0,  zcor2, 0, idrotm[0], "ONLY");
 154   gMC->Gspos("FTOB", 2, "BTO2", 0, -zcor2, 0, idrotm[1], "ONLY");
 155   gMC->Gspos("FTOB", 1, "BTO3", 0,  zcor2, 0, idrotm[0], "ONLY");
 156   gMC->Gspos("FTOB", 2, "BTO3", 0, -zcor2, 0, idrotm[1], "ONLY");
 157
 158   gMC->Gspos("FTOA", 0, "BTO1", 0, zcor3,  0, idrotm[0], "ONLY");
 159   gMC->Gspos("FTOA", 0, "BTO2", 0, zcor3,  0, idrotm[0], "ONLY");
 160   gMC->Gspos("FTOA", 0, "BTO3", 0, zcor3,  0, idrotm[0], "ONLY");
 161
 162   Float_t db = 0.5;//cm
 163   Float_t xFLT, xFST, yFLT, zFLTA, zFLTB, zFLTC;
 164
 165   xFLT = fStripLn;
 166   yFLT = ytof;
 167   zFLTA = zlenA;
 168   zFLTB = zlenB;
 169   zFLTC = zlenC;
 170
 171   xFST = xFLT-fDeadBndX*2;//cm
 172
 173   // Sizes of MRPC pads
 174
 175   Float_t yPad = 0.505;//cm
 176
 177   // Large not sensitive volumes with Insensitive Freon
 178   par[0] = xFLT*0.5;
 179   par[1] = yFLT*0.5;
 180
 181   if (fDebug) cout << ClassName() <<
 182                 ": ************************* TOF geometry **************************"<<endl;
 183
 184   par[2] = (zFLTA *0.5);
 185   gMC->Gsvolu("FLTA", "BOX ", idtmed[512], par, 3); // Insensitive Freon
 186   gMC->Gspos ("FLTA", 0, "FTOA", 0., 0., 0., 0, "ONLY");
 187
 188   par[2] = (zFLTB * 0.5);
 189   gMC->Gsvolu("FLTB", "BOX ", idtmed[512], par, 3); // Insensitive Freon
 190   gMC->Gspos ("FLTB", 0, "FTOB", 0., 0., 0., 0, "ONLY");
 191
 192   par[2] = (zFLTC * 0.5);
 193   gMC->Gsvolu("FLTC", "BOX ", idtmed[512], par, 3); // Insensitive Freon
 194   gMC->Gspos ("FLTC", 0, "FTOC", 0., 0., 0., 0, "ONLY");
 195
 196   ///// Layers of Aluminum before and after detector /////
 197   ///// Aluminum Box for Modules (1.8 mm thickness)  /////
 198   ///// lateral walls not simulated for the time being
 199   //const Float_t khAlWall = 0.18;
 200   // fp to be checked
 201   const Float_t khAlWall = 0.11;
 202   par[0] = xFLT*0.5;
 203   par[1] = khAlWall/2.;//cm
 204   ycoor = -yFLT/2 + par[1];
 205   par[2] = (zFLTA *0.5);
 206   gMC->Gsvolu("FALA", "BOX ", idtmed[508], par, 3); // Alluminium
 207   gMC->Gspos ("FALA", 1, "FLTA", 0., ycoor, 0., 0, "ONLY");
 208   gMC->Gspos ("FALA", 2, "FLTA", 0.,-ycoor, 0., 0, "ONLY");
 209   par[2] = (zFLTB *0.5);
 210   gMC->Gsvolu("FALB", "BOX ", idtmed[508], par, 3); // Alluminium
 211   gMC->Gspos ("FALB", 1, "FLTB", 0., ycoor, 0., 0, "ONLY");
 212   gMC->Gspos ("FALB", 2, "FLTB", 0.,-ycoor, 0., 0, "ONLY");
 213   par[2] = (zFLTC *0.5);
 214   gMC->Gsvolu("FALC", "BOX ", idtmed[508], par, 3); // Alluminium
 215   gMC->Gspos ("FALC", 1, "FLTC", 0., ycoor, 0., 0, "ONLY");
 216   gMC->Gspos ("FALC", 2, "FLTC", 0.,-ycoor, 0., 0, "ONLY");
 217
 218   ///////////////// Detector itself //////////////////////
 219
 220   const Float_t  kdeadBound  =  fDeadBndZ; //cm non-sensitive between the pad edge
 221   //and the boundary of the strip
 222   const Int_t    knx    = fNpadX;          // number of pads along x
 223   const Int_t    knz    = fNpadZ;          // number of pads along z
 224   const Float_t  kspace = fSpace;            //cm distance from the front plate of the box
 225
 226   Float_t zSenStrip  = fZpad*fNpadZ;//cm
 227   Float_t stripWidth = zSenStrip + 2*kdeadBound;
 228
 229   par[0] = xFLT*0.5;
 230   par[1] = yPad*0.5;
 231   par[2] = stripWidth*0.5;
 232
 233   // new description for strip volume -double stack strip-
 234   // -- all constants are expressed in cm
 235   // heigth of different layers
 236   const Float_t khhony = 0.8     ;   // heigth of HONY  Layer
 237   const Float_t khpcby = 0.08    ;   // heigth of PCB   Layer
 238   const Float_t khmyly = 0.035   ;   // heigth of MYLAR Layer
 239   const Float_t khgraphy = 0.02  ;   // heigth of GRAPHITE Layer
 240   const Float_t khglasseiy = 0.135;   // 0.6 Ext. Glass + 1.1 i.e. (Int. Glass/2) (mm)
 241   const Float_t khsensmy = 0.11  ;   // heigth of Sensitive Freon Mixture
 242   const Float_t kwsensmz = 2*3.5 ;   // cm
 243   const Float_t klsensmx = 48*2.5;   // cm
 244   const Float_t kwpadz = 3.5;   // cm z dimension of the FPAD volume
 245   const Float_t klpadx = 2.5;   // cm x dimension of the FPAD volume
 246
 247   // heigth of the FSTR Volume (the strip volume)
 248   const Float_t khstripy = 2*khhony+3*khpcby+4*(khmyly+khgraphy+khglasseiy)+2*khsensmy;
 249   // width  of the FSTR Volume (the strip volume)
 250   const Float_t kwstripz = 10.;
 251   // length of the FSTR Volume (the strip volume)
 252   const Float_t klstripx = 122.;
 253
 254   Float_t parfp[3]={klstripx*0.5,khstripy*0.5,kwstripz*0.5};
 255   // coordinates of the strip center in the strip reference frame; used for positioning
 256   // internal strip volumes
 257   Float_t posfp[3]={0.,0.,0.};
 258
 259
 260   // FSTR volume definition and filling this volume with non sensitive Gas Mixture
 261   gMC->Gsvolu("FSTR","BOX",idtmed[512],parfp,3);
 262   //-- HONY Layer definition
 263   //  parfp[0] = -1;
 264   parfp[1] = khhony*0.5;
 265   //  parfp[2] = -1;
 266   gMC->Gsvolu("FHON","BOX",idtmed[503],parfp,3);
 267   // positioning 2 HONY Layers on FSTR volume
 268
 269   posfp[1]=-khstripy*0.5+parfp[1];
 270   gMC->Gspos("FHON",1,"FSTR",0., posfp[1],0.,0,"ONLY");
 271   gMC->Gspos("FHON",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 272
 273   //-- PCB Layer definition
 274   parfp[1] = khpcby*0.5;
 275   gMC->Gsvolu("FPCB","BOX",idtmed[504],parfp,3);
 276   // positioning 2 PCB Layers on FSTR volume
 277   posfp[1]=-khstripy*0.5+khhony+parfp[1];
 278   gMC->Gspos("FPCB",1,"FSTR",0., posfp[1],0.,0,"ONLY");
 279   gMC->Gspos("FPCB",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 280   // positioning the central PCB layer
 281   gMC->Gspos("FPCB",3,"FSTR",0.,0.,0.,0,"ONLY");
 282
 283
 284
 285   //-- MYLAR Layer definition
 286   parfp[1] = khmyly*0.5;
 287   gMC->Gsvolu("FMYL","BOX",idtmed[511],parfp,3);
 288   // positioning 2 MYLAR Layers on FSTR volume
 289   posfp[1] = -khstripy*0.5+khhony+khpcby+parfp[1];
 290   gMC->Gspos("FMYL",1,"FSTR",0., posfp[1],0.,0,"ONLY");
 291   gMC->Gspos("FMYL",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 292   // adding further 2 MYLAR Layers on FSTR volume
 293   posfp[1] = khpcby*0.5+parfp[1];
 294   gMC->Gspos("FMYL",3,"FSTR",0., posfp[1],0.,0,"ONLY");
 295   gMC->Gspos("FMYL",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 296
 297
 298   //-- Graphite Layer definition
 299   parfp[1] = khgraphy*0.5;
 300   gMC->Gsvolu("FGRP","BOX",idtmed[502],parfp,3);
 301   // positioning 2 Graphite Layers on FSTR volume
 302   posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+parfp[1];
 303   gMC->Gspos("FGRP",1,"FSTR",0., posfp[1],0.,0,"ONLY");
 304   gMC->Gspos("FGRP",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 305   // adding further 2 Graphite Layers on FSTR volume
 306   posfp[1] = khpcby*0.5+khmyly+parfp[1];
 307   gMC->Gspos("FGRP",3,"FSTR",0., posfp[1],0.,0,"ONLY");
 308   gMC->Gspos("FGRP",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 309
 310
 311   //-- Glass (EXT. +Semi INT.) Layer definition
 312   parfp[1] = khglasseiy*0.5;
 313   gMC->Gsvolu("FGLA","BOX",idtmed[514],parfp,3);
 314   // positioning 2 Glass Layers on FSTR volume
 315   posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+khgraphy+parfp[1];
 316   gMC->Gspos("FGLA",1,"FSTR",0., posfp[1],0.,0,"ONLY");
 317   gMC->Gspos("FGLA",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 318   // adding further 2 Glass Layers on FSTR volume
 319   posfp[1] = khpcby*0.5+khmyly+khgraphy+parfp[1];
 320   gMC->Gspos("FGLA",3,"FSTR",0., posfp[1],0.,0,"ONLY");
 321   gMC->Gspos("FGLA",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 322
 323
 324   //-- Sensitive Mixture Layer definition
 325   parfp[0] = klsensmx*0.5;
 326   parfp[1] = khsensmy*0.5;
 327   parfp[2] = kwsensmz*0.5;
 328   gMC->Gsvolu("FSEN","BOX",idtmed[513],parfp,3);
 329   gMC->Gsvolu("FNSE","BOX",idtmed[512],parfp,3);
 330   // positioning 2 gas Layers on FSTR volume
 331   // the upper is insensitive freon
 332   // while the remaining is sensitive
 333   posfp[1] = khpcby*0.5+khmyly+khgraphy+khglasseiy+parfp[1];
 334   gMC->Gspos("FNSE",0,"FSTR", 0., posfp[1],0.,0,"ONLY");
 335   gMC->Gspos("FSEN",0,"FSTR", 0.,-posfp[1],0.,0,"ONLY");
 336
 337   // dividing FSEN along z in knz=2 and along x in knx=48
 338   gMC->Gsdvn("FSEZ","FSEN",knz,3);
 339   gMC->Gsdvn("FSEX","FSEZ",knx,1);
 340
 341   // FPAD volume definition
 342   parfp[0] = klpadx*0.5;
 343   parfp[1] = khsensmy*0.5;
 344   parfp[2] = kwpadz*0.5;
 345   gMC->Gsvolu("FPAD","BOX",idtmed[513],parfp,3);
 346   // positioning the FPAD volumes on previous divisions
 347   gMC->Gspos("FPAD",0,"FSEX",0.,0.,0.,0,"ONLY");
 348
 349   ////  Positioning the Strips  (FSTR) in the FLT volumes  /////
 350
 351   // Plate A (Central)
 352
 353   Float_t t = zFLTC+zFLTB+zFLTA*0.5+ 2*db;//Half Width of Barrel
 354
 355   Float_t gap  = fGapA+0.5; //cm  updated distance between the strip axis
 356   Float_t zpos = 0;
 357   Float_t ang  = 0;
 358   Int_t j=1; // AdC
 359   nrot  = 0;
 360   zcoor = 0;
 361   ycoor = -14.5 + kspace ; //2 cm over front plate
 362
 363   AliMatrix (idrotm[0],  90.,  0.,90.,90.,0., 90.);
 364
 365   Int_t centerLoc= (Int_t)(fNStripA/2.) + 1; // AdC
 366
 367   //gMC->Gspos("FSTR",j,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY");
 368   gMC->Gspos("FSTR",centerLoc,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY"); // AdC
 369   if(fDebug>=1) {
 370     printf("%s: %f,  St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,j); // AdC
 371     printf("y = %f,  z = %f, zpos = %f \n",ycoor,zcoor,zpos);
 372   }
 373   zcoor -= zSenStrip;
 374   //j++; // AdC
 375   Int_t upDown = -1; // upDown=-1 -> Upper strip
 376                      // upDown=+1 -> Lower strip
 377   do{
 378      ang = atan(zcoor/radius);
 379      ang *= kRaddeg;
 380      AliMatrix (idrotm[nrot],  90.,  0.,90.-ang,90.,-ang, 90.);
 381      AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
 382      ang /= kRaddeg;
 383      ycoor = -14.5+ kspace; //2 cm over front plate
 384      ycoor += (1-(upDown+1)/2)*gap;
 385      //gMC->Gspos("FSTR",j  ,"FLTA",0.,ycoor, zcoor,idrotm[nrot],  "ONLY");
 386      //gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
 387      gMC->Gspos("FSTR",centerLoc-j,"FLTA",0.,ycoor, zcoor,idrotm[nrot],  "ONLY"); // AdC
 388      gMC->Gspos("FSTR",centerLoc+j,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY"); // AdC
 389      if(fDebug>=1) {
 390        printf("%s: %f,  St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,j); // AdC
 391        printf("y = %f,  z = %f, zpos = %f \n",ycoor,zcoor,zpos);
 392      }
 393      j++; //j += 2; // AdC
 394      upDown*= -1; // Alternate strips
 395      zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
 396              upDown*gap*TMath::Tan(ang)-
 397              (zSenStrip/2)/TMath::Cos(ang);
 398   } while (zcoor-(stripWidth/2)*TMath::Cos(ang)>-t+zFLTC+zFLTB+db*2);
 399
 400   zcoor = zcoor+(zSenStrip/2)/TMath::Cos(ang)+
 401           upDown*gap*TMath::Tan(ang)+
 402           (zSenStrip/2)/TMath::Cos(ang);
 403
 404   gap = fGapB;
 405   zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
 406           upDown*gap*TMath::Tan(ang)-
 407           (zSenStrip/2)/TMath::Cos(ang);
 408
 409   ang = atan(zcoor/radius);
 410   ang *= kRaddeg;
 411   AliMatrix (idrotm[nrot],  90.,  0.,90.-ang,90.,-ang, 90.);
 412   AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
 413   ang /= kRaddeg;
 414
 415   ycoor = -14.5+ kspace; //2 cm over front plate
 416   ycoor += (1-(upDown+1)/2)*gap;
 417   //gMC->Gspos("FSTR",j  ,"FLTA",0.,ycoor, zcoor,idrotm[nrot],  "ONLY");
 418   //gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
 419   gMC->Gspos("FSTR",centerLoc-j,"FLTA",0.,ycoor, zcoor,idrotm[nrot],  "ONLY"); // AdC
 420   gMC->Gspos("FSTR",centerLoc+j,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY"); // AdC
 421   if(fDebug>=1) {
 422     printf("%s: %f,  St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,j); // AdC
 423     printf("y = %f,  z = %f, zpos = %f \n",ycoor,zcoor,zpos);
 424   }
 425   ycoor = -hTof/2.+ kspace;//2 cm over front plate
 426
 427   // Plate  B
 428
 429   nrot = 0;
 430   Int_t i=1; // AdC
 431   upDown = 1;
 432   Float_t deadRegion = 1.0;//cm
 433
 434   zpos = zcoor - (zSenStrip/2)/TMath::Cos(ang)-
 435          upDown*gap*TMath::Tan(ang)-
 436          (zSenStrip/2)/TMath::Cos(ang)-
 437          deadRegion/TMath::Cos(ang);
 438
 439   ang = atan(zpos/radius);
 440   ang *= kRaddeg;
 441   AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
 442   ang /= kRaddeg;
 443   ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
 444   ycoor += (1-(upDown+1)/2)*gap;
 445   zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
 446   gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
 447   if(fDebug>=1) {
 448      printf("%s: %f,  St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
 449      printf("y = %f,  z = %f, zpos = %f \n",ycoor,zcoor,zpos);
 450   }
 451   i++;
 452   upDown*=-1;
 453
 454   do {
 455      zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)-
 456             upDown*gap*TMath::Tan(ang)-
 457             (zSenStrip/2)/TMath::Cos(ang);
 458      ang = atan(zpos/radius);
 459      ang *= kRaddeg;
 460      AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
 461      ang /= kRaddeg;
 462      Float_t deltaSpaceinB=-0.5; // [cm] to avoid overlaps with the end of freon frame
 463      Float_t deltaGapinB=0.5;    // [cm] to avoid overlaps in between initial strips
 464      ycoor = -hTof*0.5+ kspace+deltaSpaceinB ; //2 cm over front plate
 465      ycoor += (1-(upDown+1)/2)*(gap+deltaGapinB);
 466      zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
 467      gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
 468      if(fDebug>=1) {
 469         printf("%s: %f,  St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
 470         printf("y = %f,  z = %f, zpos = %f \n",ycoor,zcoor,zpos);
 471      }
 472      upDown*=-1;
 473      i++;
 474   } while (TMath::Abs(ang*kRaddeg)<22.5);
 475   //till we reach a tilting angle of 22.5 degrees
 476
 477   ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
 478   zpos = zpos - zSenStrip/TMath::Cos(ang);
 479   // this avoid overlaps in between outer strips in plate B
 480   Float_t deltaMovingUp=0.8;    // [cm]
 481   Float_t deltaMovingDown=-0.5; // [cm]
 482
 483   do {
 484      ang = atan(zpos/radius);
 485      ang *= kRaddeg;
 486      AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
 487      ang /= kRaddeg;
 488      zcoor = zpos+(zFLTB/2+zFLTA/2+db);
 489      gMC->Gspos("FSTR",i, "FLTB", 0., ycoor+deltaMovingDown+deltaMovingUp, zcoor,idrotm[nrot], "ONLY");
 490      deltaMovingUp+=0.8; // update delta moving toward the end of the plate
 491      zpos = zpos - zSenStrip/TMath::Cos(ang);
 492      if(fDebug>=1) {
 493        printf("%s: %f,  St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
 494        printf("y = %f,  z = %f, zpos = %f \n",ycoor,zcoor,zpos);
 495      }
 496      i++;
 497
 498   }  while (zpos-stripWidth*0.5/TMath::Cos(ang)>-t+zFLTC+db);
 499
 500   // Plate  C
 501
 502   zpos = zpos + zSenStrip/TMath::Cos(ang);
 503
 504   zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)+
 505          gap*TMath::Tan(ang)-
 506          (zSenStrip/2)/TMath::Cos(ang);
 507
 508   nrot = 0;
 509   i=0;
 510   Float_t deltaGap=-2.5; // [cm] update distance from strip center and plate
 511   ycoor= -hTof*0.5+kspace+gap+deltaGap;
 512
 513   do {
 514      i++;
 515      ang = atan(zpos/radius);
 516      ang *= kRaddeg;
 517      AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
 518      ang /= kRaddeg;
 519      zcoor = zpos+(zFLTC*0.5+zFLTB+zFLTA*0.5+db*2);
 520      gMC->Gspos("FSTR",i, "FLTC", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
 521      if(fDebug>=1) {
 522        printf("%s: %f,  St. %2i, Pl.5 ",ClassName(),ang*kRaddeg,i);
 523        printf("y = %f,  z = %f, zpos = %f \n",ycoor,zcoor,zpos);
 524      }
 525      zpos = zpos - zSenStrip/TMath::Cos(ang);
 526   }  while (zpos-stripWidth*TMath::Cos(ang)*0.5>-t);
 527
 528
 529   ////////// Layers after strips /////////////////
 530   // Al Layer thickness (2.3mm) factor 0.7
 531
 532   Float_t overSpace = fOverSpc;//cm
 533
 534   par[0] = xFLT*0.5;
 535   par[1] = 0.115*0.7; // factor 0.7
 536   par[2] = (zFLTA *0.5);
 537   ycoor = -yFLT/2 + overSpace + par[1];
 538   gMC->Gsvolu("FPEA", "BOX ", idtmed[508], par, 3); // Al
 539   gMC->Gspos ("FPEA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
 540   par[2] = (zFLTB *0.5);
 541   gMC->Gsvolu("FPEB", "BOX ", idtmed[508], par, 3); // Al
 542   gMC->Gspos ("FPEB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
 543   par[2] = (zFLTC *0.5);
 544   gMC->Gsvolu("FPEC", "BOX ", idtmed[508], par, 3); // Al
 545   gMC->Gspos ("FPEC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
 546
 547
 548   // plexiglass thickness: 1.5 mm ; factor 0.3
 549   ycoor += par[1];
 550   par[0] = xFLT*0.5;
 551   par[1] = 0.075*0.3; // factor 0.3
 552   par[2] = (zFLTA *0.5);
 553   ycoor += par[1];
 554   gMC->Gsvolu("FECA", "BOX ", idtmed[505], par, 3); // Plexigl.
 555   gMC->Gspos ("FECA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
 556   par[2] = (zFLTB *0.5);
 557   gMC->Gsvolu("FECB", "BOX ", idtmed[505], par, 3); // Plexigl.
 558   gMC->Gspos ("FECB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
 559   par[2] = (zFLTC *0.5);
 560   gMC->Gsvolu("FECC", "BOX ", idtmed[505], par, 3); // Plexigl.
 561   gMC->Gspos ("FECC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
 562
 563   // frame of Air
 564   ycoor += par[1];
 565   par[0] = xFLT*0.5;
 566   par[1] = (yFLT/2-ycoor-khAlWall)*0.5; // Aluminum layer considered (0.18 cm)
 567   par[2] = (zFLTA *0.5);
 568   ycoor += par[1];
 569   gMC->Gsvolu("FAIA", "BOX ", idtmed[500], par, 3); // Air
 570   gMC->Gspos ("FAIA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
 571   par[2] = (zFLTB *0.5);
 572   gMC->Gsvolu("FAIB", "BOX ", idtmed[500], par, 3); // Air
 573   gMC->Gspos ("FAIB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
 574   par[2] = (zFLTC *0.5);
 575   gMC->Gsvolu("FAIC", "BOX ", idtmed[500], par, 3); // Air
 576   gMC->Gspos ("FAIC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
 577
 578
 579   // start with cards and cooling tubes
 580   // finally, cards, cooling tubes and layer for thermal dispersion
 581   // 3 volumes
 582   // card volume definition
 583
 584   // see GEOM200 in GEANT manual
 585   AliMatrix(idrotm[98], 90., 0., 90., 90., 0., 0.); // 0 deg
 586
 587   Float_t cardpar[3];
 588   cardpar[0]= 61.;
 589   cardpar[1]= 5.;
 590   cardpar[2]= 0.1;
 591   gMC->Gsvolu("FCAR", "BOX ", idtmed[504], cardpar, 3); // PCB Card
 592   //alu plate volume definition
 593   cardpar[1]= 3.5;
 594   cardpar[2]= 0.05;
 595   gMC->Gsvolu("FALP", "BOX ", idtmed[508], cardpar, 3); // Alu Plate
 596
 597
 598   // central module positioning (FAIA)
 599   Float_t cardpos[3], aplpos2, stepforcardA=6.625;
 600   cardpos[0]= 0.;
 601   cardpos[1]= -0.5;
 602   cardpos[2]= -53.;
 603   Float_t aplpos1 = -2.;
 604   Int_t icard;
 605   for (icard=0; icard<15; ++icard) {
 606     cardpos[2]= cardpos[2]+stepforcardA;
 607     aplpos2 = cardpos[2]+0.15;
 608     gMC->Gspos("FCAR",icard,"FAIA",cardpos[0],cardpos[1],cardpos[2],idrotm[98],"ONLY");
 609     gMC->Gspos("FALP",icard,"FAIA",cardpos[0],aplpos1,aplpos2,idrotm[98],"ONLY");
 610
 611   }
 612
 613
 614   // intermediate module positioning (FAIB)
 615   Float_t stepforcardB= 7.05;
 616   cardpos[2]= -70.5;
 617   for (icard=0; icard<19; ++icard) {
 618     cardpos[2]= cardpos[2]+stepforcardB;
 619     aplpos2 = cardpos[2]+0.15;
 620     gMC->Gspos("FCAR",icard,"FAIB",cardpos[0],cardpos[1],cardpos[2],idrotm[98],"ONLY");
 621     gMC->Gspos("FALP",icard,"FAIB",cardpos[0],aplpos1,aplpos2,idrotm[98],"ONLY");
 622   }
 623
 624
 625   // outer module positioning (FAIC)
 626   Float_t stepforcardC= 8.45238;
 627   cardpos[2]= -88.75;
 628   for (icard=0; icard<20; ++icard) {
 629     cardpos[2]= cardpos[2]+stepforcardC;
 630     aplpos2 = cardpos[2]+0.15;
 631     gMC->Gspos("FCAR",icard,"FAIC",cardpos[0],cardpos[1],cardpos[2],idrotm[98],"ONLY");
 632     gMC->Gspos("FALP",icard,"FAIC",cardpos[0],aplpos1,aplpos2,idrotm[98],"ONLY");
 633   }
 634
 635   // tube volume definition
 636   Float_t tubepar[3];
 637   tubepar[0]= 0.;
 638   tubepar[1]= 0.4;
 639   tubepar[2]= 61.;
 640   gMC->Gsvolu("FTUB", "TUBE", idtmed[516], tubepar, 3); // cooling tubes (steel)
 641   tubepar[0]= 0.;
 642   tubepar[1]= 0.35;
 643   tubepar[2]= 61.;
 644   gMC->Gsvolu("FITU", "TUBE", idtmed[515], tubepar, 3); // cooling water
 645   // positioning water tube into the steel one
 646   gMC->Gspos("FITU",1,"FTUB",0.,0.,0.,0,"ONLY");
 647
 648
 649   // rotation matrix
 650   AliMatrix(idrotm[99], 180., 90., 90., 90., 90., 0.);
 651   // central module positioning (FAIA)
 652   Float_t tubepos[3], tdis=0.6;
 653   tubepos[0]= 0.;
 654   tubepos[1]= cardpos[1];
 655   tubepos[2]= -53.+tdis;
 656   //  tub1pos = 5.;
 657   Int_t itub;
 658   for (itub=0; itub<15; ++itub) {
 659     tubepos[2]= tubepos[2]+stepforcardA;
 660     gMC->Gspos("FTUB",itub,"FAIA",tubepos[0],tubepos[1],tubepos[2],idrotm[99],
 661                "ONLY");
 662   }
 663
 664
 665   // intermediate module positioning (FAIB)
 666   tubepos[2]= -70.5+tdis;
 667   for (itub=0; itub<19; ++itub) {
 668     tubepos[2]= tubepos[2]+stepforcardB;
 669     gMC->Gspos("FTUB",itub,"FAIB",tubepos[0],tubepos[1],tubepos[2],idrotm[99],
 670                "ONLY");
 671   }
 672
 673   // outer module positioning (FAIC)
 674   tubepos[2]= -88.75+tdis;
 675   for (itub=0; itub<20; ++itub) {
 676     tubepos[2]= tubepos[2]+stepforcardC;
 677     gMC->Gspos("FTUB",itub,"FAIC",tubepos[0],tubepos[1],tubepos[2],idrotm[99],
 678                "ONLY");
 679   }
 680
 681 }
 682
 683 //_____________________________________________________________________________
 684 void AliTOFv4::DrawModule() const
 685 {
 686   //
 687   // Draw a shaded view of the Time Of Flight version 4
 688   //
 689   // Set everything unseen
 690   gMC->Gsatt("*", "seen", -1);
 691   //
 692   // Set ALIC mother transparent
 693   gMC->Gsatt("ALIC","SEEN",0);
 694   //
 695   // Set the volumes visible
 696   gMC->Gsatt("ALIC","SEEN",0);
 697
 698   gMC->Gsatt("FTOA","SEEN",1);
 699   gMC->Gsatt("FTOB","SEEN",1);
 700   gMC->Gsatt("FTOC","SEEN",1);
 701   gMC->Gsatt("FLTA","SEEN",1);
 702   gMC->Gsatt("FLTB","SEEN",1);
 703   gMC->Gsatt("FLTC","SEEN",1);
 704   gMC->Gsatt("FPLA","SEEN",1);
 705   gMC->Gsatt("FPLB","SEEN",1);
 706   gMC->Gsatt("FPLC","SEEN",1);
 707   gMC->Gsatt("FSTR","SEEN",1);
 708   gMC->Gsatt("FPEA","SEEN",1);
 709   gMC->Gsatt("FPEB","SEEN",1);
 710   gMC->Gsatt("FPEC","SEEN",1);
 711
 712   gMC->Gsatt("FLZ1","SEEN",0);
 713   gMC->Gsatt("FLZ2","SEEN",0);
 714   gMC->Gsatt("FLZ3","SEEN",0);
 715   gMC->Gsatt("FLX1","SEEN",0);
 716   gMC->Gsatt("FLX2","SEEN",0);
 717   gMC->Gsatt("FLX3","SEEN",0);
 718   gMC->Gsatt("FPAD","SEEN",0);
 719
 720   gMC->Gdopt("hide", "on");
 721   gMC->Gdopt("shad", "on");
 722   gMC->Gsatt("*", "fill", 7);
 723   gMC->SetClipBox(".");
 724   gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
 725   gMC->DefaultRange();
 726   gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
 727   gMC->Gdhead(1111, "Time Of Flight");
 728   gMC->Gdman(18, 4, "MAN");
 729   gMC->Gdopt("hide","off");
 730 }
 731 //_____________________________________________________________________________
 732 void AliTOFv4::DrawDetectorModules()
 733 {
 734 //
 735 // Draw a shaded view of the TOF detector version 4
 736 //
 737
 738
 739 //Set ALIC mother transparent
 740  gMC->Gsatt("ALIC","SEEN",0);
 741
 742 //
 743 //Set volumes visible
 744 //
 745 //=====> Level 1
 746   // Level 1 for TOF volumes
 747   gMC->Gsatt("B077","seen",0);
 748
 749
 750 //==========> Level 2
 751   // Level 2
 752   gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
 753   gMC->Gsatt("B071","seen",0);
 754   gMC->Gsatt("B074","seen",0);
 755   gMC->Gsatt("B075","seen",0);
 756   gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
 757
 758
 759   // Level 2 of B071
 760   gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped   -
 761   gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped   -
 762   gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped   -
 763   gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped   -
 764   gMC->Gsatt("B056","seen",0);  // B056 does not has sub-levels  -
 765   gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped   -
 766   gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped   -
 767   gMC->Gsatt("BTR1","seen",0);  // BTR1 do not have sub-levels   -
 768   gMC->Gsatt("BTO1","seen",0);
 769
 770
 771   // Level 2 of B074
 772   gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
 773   gMC->Gsatt("BTO2","seen",0);
 774
 775   // Level 2 of B075
 776   gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
 777   gMC->Gsatt("BTO3","seen",0);
 778
 779 // ==================> Level 3
 780   // Level 3 of B071 / Level 2 of BTO1
 781   gMC->Gsatt("FTOC","seen",-2);
 782   gMC->Gsatt("FTOB","seen",-2);
 783   gMC->Gsatt("FTOA","seen",-2);
 784
 785   // Level 3 of B074 / Level 2 of BTO2
 786   // -> cfr previous settings
 787
 788   // Level 3 of B075 / Level 2 of BTO3
 789   // -> cfr previous settings
 790
 791   gMC->Gdopt("hide","on");
 792   gMC->Gdopt("shad","on");
 793   gMC->Gsatt("*", "fill", 5);
 794   gMC->SetClipBox(".");
 795   gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
 796   gMC->DefaultRange();
 797   gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
 798   gMC->Gdhead(1111,"TOF detector V1");
 799   gMC->Gdman(18, 4, "MAN");
 800   gMC->Gdopt("hide","off");
 801 }
 802
 803 //_____________________________________________________________________________
 804 void AliTOFv4::DrawDetectorStrips()
 805 {
 806 //
 807 // Draw a shaded view of the TOF strips for version 4
 808 //
 809
 810 //Set ALIC mother transparent
 811  gMC->Gsatt("ALIC","SEEN",0);
 812
 813 //
 814 //Set volumes visible
 815 //=====> Level 1
 816   // Level 1 for TOF volumes
 817   gMC->Gsatt("B077","seen",0);
 818
 819 //==========> Level 2
 820   // Level 2
 821   gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
 822   gMC->Gsatt("B071","seen",0);
 823   gMC->Gsatt("B074","seen",0);
 824   gMC->Gsatt("B075","seen",0);
 825   gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
 826
 827   // Level 2 of B071
 828   gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped   -
 829   gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped   -
 830   gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped   -
 831   gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped   -
 832   gMC->Gsatt("B056","seen",0);  // B056 does not has sub-levels  -
 833   gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped   -
 834   gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped   -
 835   gMC->Gsatt("BTR1","seen",0);  // BTR1 do not have sub-levels   -
 836   gMC->Gsatt("BTO1","seen",0);
 837
 838 // ==================> Level 3
 839   // Level 3 of B071 / Level 2 of BTO1
 840   gMC->Gsatt("FTOC","seen",0);
 841   gMC->Gsatt("FTOB","seen",0);
 842   gMC->Gsatt("FTOA","seen",0);
 843
 844   // Level 3 of B074 / Level 2 of BTO2
 845   // -> cfr previous settings
 846
 847   // Level 3 of B075 / Level 2 of BTO3
 848   // -> cfr previous settings
 849
 850
 851 // ==========================> Level 4
 852   // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOC
 853   gMC->Gsatt("FLTC","seen",0);
 854   // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOB
 855   gMC->Gsatt("FLTB","seen",0);
 856   // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOA
 857   gMC->Gsatt("FLTA","seen",0);
 858
 859   // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOC
 860   // -> cfr previous settings
 861   // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOB
 862   // -> cfr previous settings
 863
 864   // Level 4 of B075 / Level 3 of BTO3 / Level 2 of FTOC
 865   // -> cfr previous settings
 866
 867 //======================================> Level 5
 868   // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOC / Level 2 of FLTC
 869   gMC->Gsatt("FALC","seen",0); // no children for FALC
 870   gMC->Gsatt("FSTR","seen",-2);
 871   gMC->Gsatt("FPEC","seen",0); // no children for FPEC
 872   gMC->Gsatt("FECC","seen",0); // no children for FECC
 873   gMC->Gsatt("FWAC","seen",0); // no children for FWAC
 874   gMC->Gsatt("FAIC","seen",0); // no children for FAIC
 875
 876   // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOB / Level 2 of FLTB
 877   gMC->Gsatt("FALB","seen",0); // no children for FALB
 878 //-->  gMC->Gsatt("FSTR","seen",-2);
 879
 880
 881   // -> cfr previous settings
 882   gMC->Gsatt("FPEB","seen",0); // no children for FPEB
 883   gMC->Gsatt("FECB","seen",0); // no children for FECB
 884   gMC->Gsatt("FWAB","seen",0); // no children for FWAB
 885   gMC->Gsatt("FAIB","seen",0); // no children for FAIB
 886
 887   // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOA / Level 2 of FLTA
 888   gMC->Gsatt("FALA","seen",0); // no children for FALB
 889 //-->  gMC->Gsatt("FSTR","seen",-2);
 890   // -> cfr previous settings
 891   gMC->Gsatt("FPEA","seen",0); // no children for FPEA
 892   gMC->Gsatt("FECA","seen",0); // no children for FECA
 893   gMC->Gsatt("FWAA","seen",0); // no children for FWAA
 894   gMC->Gsatt("FAIA","seen",0); // no children for FAIA
 895
 896   // Level 2 of B074
 897   gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
 898   gMC->Gsatt("BTO2","seen",0);
 899
 900   // Level 2 of B075
 901   gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
 902   gMC->Gsatt("BTO3","seen",0);
 903
 904 // for others Level 5, cfr. previous settings
 905
 906   gMC->Gdopt("hide","on");
 907   gMC->Gdopt("shad","on");
 908   gMC->Gsatt("*", "fill", 5);
 909   gMC->SetClipBox(".");
 910   gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
 911   gMC->DefaultRange();
 912   gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
 913   gMC->Gdhead(1111,"TOF Strips V1");
 914   gMC->Gdman(18, 4, "MAN");
 915   gMC->Gdopt("hide","off");
 916 }
 917
 918 //_____________________________________________________________________________
 919 void AliTOFv4::CreateMaterials()
 920 {
 921   //
 922   // Define materials for the Time Of Flight
 923   //
 924   AliTOF::CreateMaterials();
 925 }
 926
 927 //_____________________________________________________________________________
 928 void AliTOFv4::Init()
 929 {
 930   //
 931   // Initialise the detector after the geometry has been defined
 932   //
 933   if(fDebug) {
 934     printf("%s: **************************************"
 935            "  TOF  "
 936            "**************************************\n",ClassName());
 937     printf("\n%s:   Version 4 of TOF initialing, "
 938                 "symmetric TOF - Full Coverage version\n",ClassName());
 939   }
 940
 941   AliTOF::Init();
 942
 943   fIdFTOA = gMC->VolId("FTOA");
 944   fIdFTOB = gMC->VolId("FTOB");
 945   fIdFTOC = gMC->VolId("FTOC");
 946   fIdFLTA = gMC->VolId("FLTA");
 947   fIdFLTB = gMC->VolId("FLTB");
 948   fIdFLTC = gMC->VolId("FLTC");
 949
 950   if(fDebug) {
 951     printf("%s: **************************************"
 952            "  TOF  "
 953            "**************************************\n",ClassName());
 954   }
 955 }
 956
 957 //_____________________________________________________________________________
 958 void AliTOFv4::StepManager()
 959 {
 960   //
 961   // Procedure called at each step in the Time Of Flight
 962   //
 963   TLorentzVector mom, pos;
 964   Float_t xm[3],pm[3],xpad[3],ppad[3];
 965   Float_t hits[13],phi,phid,z;
 966   Int_t   vol[5];
 967   Int_t   sector, plate, padx, padz, strip;
 968   Int_t   copy, padzid, padxid, stripid, i;
 969   Int_t   *idtmed = fIdtmed->GetArray()-499;
 970   Float_t incidenceAngle;
 971
 972   if(gMC->CurrentMedium()==idtmed[513] &&
 973      gMC->IsTrackEntering() && gMC->TrackCharge()
 974      && gMC->CurrentVolID(copy)==fIdSens)
 975   {
 976     // getting information about hit volumes
 977
 978     padzid=gMC->CurrentVolOffID(2,copy);
 979     padz=copy;
 980
 981     padxid=gMC->CurrentVolOffID(1,copy);
 982     padx=copy;
 983
 984     stripid=gMC->CurrentVolOffID(4,copy);
 985     strip=copy;
 986
 987     gMC->TrackPosition(pos);
 988     gMC->TrackMomentum(mom);
 989
 990 //    Double_t NormPos=1./pos.Rho();
 991     Double_t normMom=1./mom.Rho();
 992
 993 //  getting the cohordinates in pad ref system
 994     xm[0] = (Float_t)pos.X();
 995     xm[1] = (Float_t)pos.Y();
 996     xm[2] = (Float_t)pos.Z();
 997
 998     pm[0] = (Float_t)mom.X()*normMom;
 999     pm[1] = (Float_t)mom.Y()*normMom;
1000     pm[2] = (Float_t)mom.Z()*normMom;
1001
1002     gMC->Gmtod(xm,xpad,1);
1003     gMC->Gmtod(pm,ppad,2);
1004
1005     incidenceAngle = TMath::ACos(ppad[1])*kRaddeg;
1006
1007     z = pos[2];
1008
1009     plate = 0;
1010     if (TMath::Abs(z) <=  fZlenA*0.5)  plate = 2; //3; // AdC
1011     if (z < (fZlenA*0.5+fZlenB) &&
1012         z >  fZlenA*0.5)               plate = 1; //4; // AdC
1013     if (z >-(fZlenA*0.5+fZlenB) &&
1014         z < -fZlenA*0.5)               plate = 3; //2; // AdC
1015     if (z > (fZlenA*0.5+fZlenB))       plate = 0; //5; // AdC
1016     if (z <-(fZlenA*0.5+fZlenB))       plate = 4; //1; // AdC
1017
1018     if (plate==0) strip=AliTOFConstants::fgkNStripC-strip; // AdC
1019     else if (plate==1) strip=AliTOFConstants::fgkNStripB-strip; // AdC
1020     else strip--; // AdC
1021
1022     if (z<=0.) padx=AliTOFConstants::fgkNpadX-padx; // AdC
1023     else padx--; // AdC
1024
1025     if (plate==3 || plate==4) padz=AliTOFConstants::fgkNpadZ-padz; // AdC
1026     else padz--; // AdC
1027
1028     phi = pos.Phi();
1029     if (phi>=0.) phid = phi*kRaddeg; //+180.; // AdC
1030     else phid = phi*kRaddeg + 360.; // AdC
1031     sector = Int_t (phid/20.); // AdC
1032     //sector++; // AdC
1033
1034     for(i=0;i<3;++i) {
1035       hits[i]   = pos[i];
1036       hits[i+3] = pm[i];
1037     }
1038
1039     hits[6] = mom.Rho();
1040     hits[7] = pos[3];
1041     hits[8] = xpad[0];
1042     hits[9] = xpad[1];
1043     hits[10]= xpad[2];
1044     hits[11]= incidenceAngle;
1045     hits[12]= gMC->Edep();
1046
1047     vol[0]= sector;
1048     vol[1]= plate;
1049     vol[2]= strip;
1050     vol[3]= padx;
1051     vol[4]= padz;
1052
1053     AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(),vol, hits);
1054   }
1055 }