TOF/AliTOFv2.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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   6  *                                                                        *
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  13  * provided "as is" without express or implied warranty.                  *
  14  **************************************************************************/
  15
  16 /* $Id$ */
  17
  18 ///////////////////////////////////////////////////////////////////////////////
  19 //                                                                           //
  20 //  This class contains the functions for version 2 of the Time Of Flight    //
  21 //  detector.                                                                //
  22 //                                                                           //
  23 //  VERSION WITH 5 MODULES AND TILTED STRIPS                                 //
  24 //                                                                           //
  25 //  HOLES FOR PHOS AND HMPID DETECTOR                                         //
  26 //                                                                           //
  27 //   Authors:                                                                //
  28 //                                                                           //
  29 //   Alessio Seganti                                                         //
  30 //   Domenico Vicinanza                                                      //
  31 //                                                                           //
  32 //   University of Salerno - Italy                                           //
  33 //                                                                           //
  34 //   Fabrizio Pierella                                                       //
  35 //   University of Bologna - Italy                                           //
  36 //                                                                           //
  37 //                                                                           //
  38 //Begin_Html                                                                 //
  39 /*                                                                           //
  40 <img src="picts/AliTOFv2Class.gif">                                          //
  41 */                                                                           //
  42 //End_Html                                                                   //
  43 //                                                                           //
  44 ///////////////////////////////////////////////////////////////////////////////
  45
  46 #include <Riostream.h>
  47 #include <stdlib.h>
  48
  49 #include <TLorentzVector.h>
  50 #include <TObject.h>
  51 #include <TVirtualMC.h>
  52
  53 #include "AliConst.h"
  54 #include "AliMagF.h"
  55 #include "AliRun.h"
  56 #include "AliTOFv2.h"
  57 #include "AliTOFConstants.h" // AdC
  58 #include "AliMC.h"
  59
  60 ClassImp(AliTOFv2)
  61
  62 //_____________________________________________________________________________
  63 AliTOFv2::AliTOFv2()
  64 {
  65   //
  66   // Default constructor
  67   //
  68 }
  69
  70 //_____________________________________________________________________________
  71 AliTOFv2::AliTOFv2(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 AliTOFv2::CreateGeometry()
  94 {
  95   //
  96   // Create geometry for Time Of Flight version 0
  97   //
  98   //Begin_Html
  99   /*
 100     <img src="picts/AliTOFv2.gif">
 101   */
 102   //End_Html
 103   //
 104   // Creates common geometry
 105   //
 106   AliTOF::CreateGeometry();
 107 }
 108
 109 //_____________________________________________________________________________
 110 void AliTOFv2::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
 156   gMC->Gspos("FTOA", 0, "BTO1", 0, zcor3,  0, idrotm[0], "ONLY");
 157
 158   Float_t db = 0.5;//cm
 159   Float_t xFLT, xFST, yFLT, zFLTA, zFLTB, zFLTC;
 160
 161   xFLT = fStripLn;
 162   yFLT = ytof;
 163   zFLTA = zlenA;
 164   zFLTB = zlenB;
 165   zFLTC = zlenC;
 166
 167   xFST = xFLT-fDeadBndX*2;//cm
 168
 169 // Sizes of MRPC pads
 170
 171   Float_t yPad = 0.505;//cm
 172
 173 // Large not sensitive volumes with Insensitive Freon
 174   par[0] = xFLT*0.5;
 175   par[1] = yFLT*0.5;
 176
 177   if(fDebug)
 178     cout <<ClassName()
 179          <<": ************************* TOF geometry **************************"
 180          <<endl;
 181
 182   par[2] = (zFLTA *0.5);
 183   gMC->Gsvolu("FLTA", "BOX ", idtmed[512], par, 3); // Insensitive Freon
 184   gMC->Gspos ("FLTA", 0, "FTOA", 0., 0., 0., 0, "ONLY");
 185
 186   par[2] = (zFLTB * 0.5);
 187   gMC->Gsvolu("FLTB", "BOX ", idtmed[512], par, 3); // Insensitive Freon
 188   gMC->Gspos ("FLTB", 0, "FTOB", 0., 0., 0., 0, "ONLY");
 189
 190   par[2] = (zFLTC * 0.5);
 191   gMC->Gsvolu("FLTC", "BOX ", idtmed[512], par, 3); // Insensitive Freon
 192   gMC->Gspos ("FLTC", 0, "FTOC", 0., 0., 0., 0, "ONLY");
 193
 194   ///// Layers of Aluminum before and after detector /////
 195   ///// Aluminum Box for Modules (1.8 mm thickness)  /////
 196   ///// lateral walls not simulated for the time being
 197   //const Float_t khAlWall = 0.18;
 198   // fp to be checked
 199   const Float_t khAlWall = 0.11;
 200   par[0] = xFLT*0.5;
 201   par[1] = khAlWall/2.;//cm
 202   ycoor = -yFLT/2 + par[1];
 203   par[2] = (zFLTA *0.5);
 204   gMC->Gsvolu("FALA", "BOX ", idtmed[508], par, 3); // Alluminium
 205   gMC->Gspos ("FALA", 1, "FLTA", 0., ycoor, 0., 0, "ONLY");
 206   gMC->Gspos ("FALA", 2, "FLTA", 0.,-ycoor, 0., 0, "ONLY");
 207   par[2] = (zFLTB *0.5);
 208   gMC->Gsvolu("FALB", "BOX ", idtmed[508], par, 3); // Alluminium
 209   gMC->Gspos ("FALB", 1, "FLTB", 0., ycoor, 0., 0, "ONLY");
 210   gMC->Gspos ("FALB", 2, "FLTB", 0.,-ycoor, 0., 0, "ONLY");
 211   par[2] = (zFLTC *0.5);
 212   gMC->Gsvolu("FALC", "BOX ", idtmed[508], par, 3); // Alluminium
 213   gMC->Gspos ("FALC", 1, "FLTC", 0., ycoor, 0., 0, "ONLY");
 214   gMC->Gspos ("FALC", 2, "FLTC", 0.,-ycoor, 0., 0, "ONLY");
 215
 216   ///////////////// Detector itself //////////////////////
 217
 218   const Float_t  kdeadBound  =  fDeadBndZ; //cm non-sensitive between the pad edge
 219   //and the boundary of the strip
 220   const Int_t    knx    = fNpadX;          // number of pads along x
 221   const Int_t    knz    = fNpadZ;          // number of pads along z
 222   const Float_t  kspace = fSpace;            //cm distance from the front plate of the box
 223
 224   Float_t zSenStrip  = fZpad*fNpadZ;//cm
 225   Float_t stripWidth = zSenStrip + 2*kdeadBound;
 226
 227   par[0] = xFLT*0.5;
 228   par[1] = yPad*0.5;
 229   par[2] = stripWidth*0.5;
 230
 231   // new description for strip volume -double stack strip-
 232   // -- all constants are expressed in cm
 233   // heigth of different layers
 234   const Float_t khhony = 0.8     ;   // heigth of HONY  Layer
 235   const Float_t khpcby = 0.08    ;   // heigth of PCB   Layer
 236   const Float_t khmyly = 0.035   ;   // heigth of MYLAR Layer
 237   const Float_t khgraphy = 0.02  ;   // heigth of GRAPHITE Layer
 238   const Float_t khglasseiy = 0.135;   // 0.6 Ext. Glass + 1.1 i.e. (Int. Glass/2) (mm)
 239   const Float_t khsensmy = 0.11  ;   // heigth of Sensitive Freon Mixture
 240   const Float_t kwsensmz = 2*3.5 ;   // cm
 241   const Float_t klsensmx = 48*2.5;   // cm
 242   const Float_t kwpadz = 3.5;   // cm z dimension of the FPAD volume
 243   const Float_t klpadx = 2.5;   // cm x dimension of the FPAD volume
 244
 245   // heigth of the FSTR Volume (the strip volume)
 246   const Float_t khstripy = 2*khhony+3*khpcby+4*(khmyly+khgraphy+khglasseiy)+2*khsensmy;
 247   // width  of the FSTR Volume (the strip volume)
 248   const Float_t kwstripz = 10.;
 249   // length of the FSTR Volume (the strip volume)
 250   const Float_t klstripx = 122.;
 251
 252   Float_t parfp[3]={klstripx*0.5,khstripy*0.5,kwstripz*0.5};
 253   // coordinates of the strip center in the strip reference frame; used for positioning
 254   // internal strip volumes
 255   Float_t posfp[3]={0.,0.,0.};
 256
 257
 258   // FSTR volume definition and filling this volume with non sensitive Gas Mixture
 259   gMC->Gsvolu("FSTR","BOX",idtmed[512],parfp,3);
 260   //-- HONY Layer definition
 261   //  parfp[0] = -1;
 262   parfp[1] = khhony*0.5;
 263   //  parfp[2] = -1;
 264   gMC->Gsvolu("FHON","BOX",idtmed[503],parfp,3);
 265   // positioning 2 HONY Layers on FSTR volume
 266
 267   posfp[1]=-khstripy*0.5+parfp[1];
 268   gMC->Gspos("FHON",1,"FSTR",0., posfp[1],0.,0,"ONLY");
 269   gMC->Gspos("FHON",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 270
 271   //-- PCB Layer definition
 272   parfp[1] = khpcby*0.5;
 273   gMC->Gsvolu("FPCB","BOX",idtmed[504],parfp,3);
 274   // positioning 2 PCB Layers on FSTR volume
 275   posfp[1]=-khstripy*0.5+khhony+parfp[1];
 276   gMC->Gspos("FPCB",1,"FSTR",0., posfp[1],0.,0,"ONLY");
 277   gMC->Gspos("FPCB",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 278   // positioning the central PCB layer
 279   gMC->Gspos("FPCB",3,"FSTR",0.,0.,0.,0,"ONLY");
 280
 281
 282
 283   //-- MYLAR Layer definition
 284   parfp[1] = khmyly*0.5;
 285   gMC->Gsvolu("FMYL","BOX",idtmed[511],parfp,3);
 286   // positioning 2 MYLAR Layers on FSTR volume
 287   posfp[1] = -khstripy*0.5+khhony+khpcby+parfp[1];
 288   gMC->Gspos("FMYL",1,"FSTR",0., posfp[1],0.,0,"ONLY");
 289   gMC->Gspos("FMYL",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 290   // adding further 2 MYLAR Layers on FSTR volume
 291   posfp[1] = khpcby*0.5+parfp[1];
 292   gMC->Gspos("FMYL",3,"FSTR",0., posfp[1],0.,0,"ONLY");
 293   gMC->Gspos("FMYL",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 294
 295
 296   //-- Graphite Layer definition
 297   parfp[1] = khgraphy*0.5;
 298   gMC->Gsvolu("FGRP","BOX",idtmed[502],parfp,3);
 299   // positioning 2 Graphite Layers on FSTR volume
 300   posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+parfp[1];
 301   gMC->Gspos("FGRP",1,"FSTR",0., posfp[1],0.,0,"ONLY");
 302   gMC->Gspos("FGRP",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 303   // adding further 2 Graphite Layers on FSTR volume
 304   posfp[1] = khpcby*0.5+khmyly+parfp[1];
 305   gMC->Gspos("FGRP",3,"FSTR",0., posfp[1],0.,0,"ONLY");
 306   gMC->Gspos("FGRP",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 307
 308
 309   //-- Glass (EXT. +Semi INT.) Layer definition
 310   parfp[1] = khglasseiy*0.5;
 311   gMC->Gsvolu("FGLA","BOX",idtmed[514],parfp,3);
 312   // positioning 2 Glass Layers on FSTR volume
 313   posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+khgraphy+parfp[1];
 314   gMC->Gspos("FGLA",1,"FSTR",0., posfp[1],0.,0,"ONLY");
 315   gMC->Gspos("FGLA",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 316   // adding further 2 Glass Layers on FSTR volume
 317   posfp[1] = khpcby*0.5+khmyly+khgraphy+parfp[1];
 318   gMC->Gspos("FGLA",3,"FSTR",0., posfp[1],0.,0,"ONLY");
 319   gMC->Gspos("FGLA",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 320
 321
 322   //-- Sensitive Mixture Layer definition
 323   parfp[0] = klsensmx*0.5;
 324   parfp[1] = khsensmy*0.5;
 325   parfp[2] = kwsensmz*0.5;
 326   gMC->Gsvolu("FSEN","BOX",idtmed[513],parfp,3);
 327   gMC->Gsvolu("FNSE","BOX",idtmed[512],parfp,3);
 328   // positioning 2 gas Layers on FSTR volume
 329   // the upper is insensitive freon
 330   // while the remaining is sensitive
 331   posfp[1] = khpcby*0.5+khmyly+khgraphy+khglasseiy+parfp[1];
 332   gMC->Gspos("FNSE",0,"FSTR", 0., posfp[1],0.,0,"ONLY");
 333   gMC->Gspos("FSEN",0,"FSTR", 0.,-posfp[1],0.,0,"ONLY");
 334
 335   // dividing FSEN along z in knz=2 and along x in knx=48
 336   gMC->Gsdvn("FSEZ","FSEN",knz,3);
 337   gMC->Gsdvn("FSEX","FSEZ",knx,1);
 338
 339   // FPAD volume definition
 340   parfp[0] = klpadx*0.5;
 341   parfp[1] = khsensmy*0.5;
 342   parfp[2] = kwpadz*0.5;
 343   gMC->Gsvolu("FPAD","BOX",idtmed[513],parfp,3);
 344   // positioning the FPAD volumes on previous divisions
 345   gMC->Gspos("FPAD",0,"FSEX",0.,0.,0.,0,"ONLY");
 346
 347   ////  Positioning the Strips  (FSTR) in the FLT volumes  /////
 348
 349   // Plate A (Central)
 350
 351   Float_t t = zFLTC+zFLTB+zFLTA*0.5+ 2*db;//Half Width of Barrel
 352
 353   Float_t gap  = fGapA+0.5; //cm  updated distance between the strip axis
 354   Float_t zpos = 0;
 355   Float_t ang  = 0;
 356   Int_t j=1; // AdC
 357   nrot  = 0;
 358   zcoor = 0;
 359   ycoor = -14.5 + kspace ; //2 cm over front plate
 360
 361   AliMatrix (idrotm[0],  90.,  0.,90.,90.,0., 90.);
 362
 363   Int_t centerLoc= (Int_t)(fNStripA/2.) + 1; // AdC
 364
 365   //gMC->Gspos("FSTR",j,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY");
 366
 367   if(fDebug) {
 368     printf("%s: %f,  St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,j); // AdC
 369     printf("%s: y = %f,  z = %f, zpos = %f \n",ClassName(),ycoor,zcoor,zpos);
 370   }
 371
 372   zcoor -= zSenStrip;
 373   //j++; // AdC
 374   Int_t upDown = -1; // upDown=-1 -> Upper strip
 375                      // upDown=+1 -> Lower strip
 376   do{
 377     ang = atan(zcoor/radius);
 378     ang *= kRaddeg;
 379     AliMatrix (idrotm[nrot],  90.,  0.,90.-ang,90.,-ang, 90.);
 380     AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
 381     ang /= kRaddeg;
 382     ycoor = -14.5+ kspace; //2 cm over front plate
 383     ycoor += (1-(upDown+1)/2)*gap;
 384     //gMC->Gspos("FSTR",j  ,"FLTA",0.,ycoor, zcoor,idrotm[nrot],  "ONLY");
 385     //gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
 386     gMC->Gspos("FSTR",centerLoc-j,"FLTA",0.,ycoor, zcoor,idrotm[nrot],  "ONLY"); // AdC
 387     gMC->Gspos("FSTR",centerLoc+j,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY"); // AdC
 388
 389     if(fDebug>=1) {
 390       printf("%s: %f,  St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,j); // AdC
 391       printf("%s: y = %f,  z = %f, zpos = %f \n",ClassName(),ycoor,zcoor,zpos);
 392     }
 393
 394     j++; //j += 2; // AdC
 395     upDown*= -1; // Alternate strips
 396     zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
 397       upDown*gap*TMath::Tan(ang)-
 398       (zSenStrip/2)/TMath::Cos(ang);
 399   } while (zcoor-(stripWidth/2)*TMath::Cos(ang)>-t+zFLTC+zFLTB+db*2);
 400
 401   zcoor = zcoor+(zSenStrip/2)/TMath::Cos(ang)+
 402     upDown*gap*TMath::Tan(ang)+
 403     (zSenStrip/2)/TMath::Cos(ang);
 404
 405   gap = fGapB;
 406   zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
 407     upDown*gap*TMath::Tan(ang)-
 408     (zSenStrip/2)/TMath::Cos(ang);
 409
 410   ang = atan(zcoor/radius);
 411   ang *= kRaddeg;
 412   AliMatrix (idrotm[nrot],  90.,  0.,90.-ang,90.,-ang, 90.);
 413   AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
 414   ang /= kRaddeg;
 415
 416   ycoor = -14.5+ kspace; //2 cm over front plate
 417   ycoor += (1-(upDown+1)/2)*gap;
 418   //gMC->Gspos("FSTR",j  ,"FLTA",0.,ycoor, zcoor,idrotm[nrot],  "ONLY");
 419   //gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
 420   gMC->Gspos("FSTR",centerLoc-j,"FLTA",0.,ycoor, zcoor,idrotm[nrot],  "ONLY"); // AdC
 421   gMC->Gspos("FSTR",centerLoc+j,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY"); // AdC
 422   if(fDebug>=1) {
 423     printf("%s: %f,  St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,j); // AdC
 424     printf("%s: y = %f,  z = %f, zpos = %f \n",ClassName(),ycoor,zcoor,zpos);
 425   }
 426
 427   ycoor = -hTof/2.+ kspace;//2 cm over front plate
 428
 429   // Plate  B
 430
 431   nrot = 0;
 432   Int_t i=1; // AdC
 433   upDown = 1;
 434   Float_t deadRegion = 1.0;//cm
 435
 436   zpos = zcoor - (zSenStrip/2)/TMath::Cos(ang)-
 437     upDown*gap*TMath::Tan(ang)-
 438     (zSenStrip/2)/TMath::Cos(ang)-
 439     deadRegion/TMath::Cos(ang);
 440
 441   ang = atan(zpos/radius);
 442   ang *= kRaddeg;
 443   AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
 444   ang /= kRaddeg;
 445   ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
 446   ycoor += (1-(upDown+1)/2)*gap;
 447   zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
 448   gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
 449
 450   if(fDebug>=1) {
 451     printf("%s: %f,  St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
 452     printf("%s: y = %f,  z = %f, zpos = %f \n",ClassName(),ycoor,zcoor,zpos);
 453   }
 454
 455   i++;
 456   upDown*=-1;
 457
 458   do {
 459     zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)-
 460       upDown*gap*TMath::Tan(ang)-
 461       (zSenStrip/2)/TMath::Cos(ang);
 462     ang = atan(zpos/radius);
 463     ang *= kRaddeg;
 464     AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
 465     ang /= kRaddeg;
 466     Float_t deltaSpaceinB=-0.5; // [cm] to avoid overlaps with the end of freon frame
 467     Float_t deltaGapinB=0.5;    // [cm] to avoid overlaps in between initial strips
 468     ycoor = -hTof*0.5+ kspace+deltaSpaceinB ; //2 cm over front plate
 469     ycoor += (1-(upDown+1)/2)*(gap+deltaGapinB);
 470     zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
 471     gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
 472
 473     if(fDebug>=1) {
 474       printf("%s: %f,  St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
 475       printf("%s: y = %f,  z = %f, zpos = %f \n",ClassName(),ycoor,zcoor,zpos);
 476     }
 477
 478     upDown*=-1;
 479     i++;
 480   } while (TMath::Abs(ang*kRaddeg)<22.5);
 481   //till we reach a tilting angle of 22.5 degrees
 482
 483   ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
 484   zpos = zpos - zSenStrip/TMath::Cos(ang);
 485   // this avoid overlaps in between outer strips in plate B
 486   Float_t deltaMovingUp=0.8;    // [cm]
 487   Float_t deltaMovingDown=-0.5; // [cm]
 488
 489   do {
 490     ang = atan(zpos/radius);
 491     ang *= kRaddeg;
 492     AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
 493     ang /= kRaddeg;
 494     zcoor = zpos+(zFLTB/2+zFLTA/2+db);
 495     gMC->Gspos("FSTR",i, "FLTB", 0., ycoor+deltaMovingDown+deltaMovingUp, zcoor,idrotm[nrot], "ONLY");
 496     deltaMovingUp+=0.8; // update delta moving toward the end of the plate
 497     zpos = zpos - zSenStrip/TMath::Cos(ang);
 498     if(fDebug>=1) {
 499       printf("%s: %f,  St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
 500       printf("%s: y = %f,  z = %f, zpos = %f \n",ClassName(),ycoor,zcoor,zpos);
 501     }
 502     i++;
 503
 504   }  while (zpos-stripWidth*0.5/TMath::Cos(ang)>-t+zFLTC+db);
 505
 506   // Plate  C
 507
 508   zpos = zpos + zSenStrip/TMath::Cos(ang);
 509
 510   zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)+
 511     gap*TMath::Tan(ang)-
 512     (zSenStrip/2)/TMath::Cos(ang);
 513
 514   nrot = 0;
 515   i=0;
 516   Float_t deltaGap=-2.5; // [cm] update distance from strip center and plate
 517   ycoor= -hTof*0.5+kspace+gap+deltaGap;
 518
 519   do {
 520     i++;
 521     ang = atan(zpos/radius);
 522     ang *= kRaddeg;
 523     AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
 524     ang /= kRaddeg;
 525     zcoor = zpos+(zFLTC*0.5+zFLTB+zFLTA*0.5+db*2);
 526     gMC->Gspos("FSTR",i, "FLTC", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
 527
 528     if(fDebug>=1) {
 529       printf("%s: %f,  St. %2i, Pl.5 ",ClassName(),ang*kRaddeg,i);
 530       printf("%s: y = %f,  z = %f, zpos = %f \n",ClassName(),ycoor,zcoor,zpos);
 531     }
 532
 533     zpos = zpos - zSenStrip/TMath::Cos(ang);
 534   }  while (zpos-stripWidth*TMath::Cos(ang)*0.5>-t);
 535
 536
 537   ////////// Layers after strips /////////////////
 538   // Al Layer thickness (2.3mm) factor 0.7
 539
 540   Float_t overSpace = fOverSpc;//cm
 541
 542   par[0] = xFLT*0.5;
 543   par[1] = 0.115*0.7; // factor 0.7
 544   par[2] = (zFLTA *0.5);
 545   ycoor = -yFLT/2 + overSpace + par[1];
 546   gMC->Gsvolu("FPEA", "BOX ", idtmed[508], par, 3); // Al
 547   gMC->Gspos ("FPEA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
 548   par[2] = (zFLTB *0.5);
 549   gMC->Gsvolu("FPEB", "BOX ", idtmed[508], par, 3); // Al
 550   gMC->Gspos ("FPEB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
 551   par[2] = (zFLTC *0.5);
 552   gMC->Gsvolu("FPEC", "BOX ", idtmed[508], par, 3); // Al
 553   gMC->Gspos ("FPEC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
 554
 555
 556   // plexiglass thickness: 1.5 mm ; factor 0.3
 557   ycoor += par[1];
 558   par[0] = xFLT*0.5;
 559   par[1] = 0.075*0.3; // factor 0.3
 560   par[2] = (zFLTA *0.5);
 561   ycoor += par[1];
 562   gMC->Gsvolu("FECA", "BOX ", idtmed[505], par, 3); // Plexigl.
 563   gMC->Gspos ("FECA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
 564   par[2] = (zFLTB *0.5);
 565   gMC->Gsvolu("FECB", "BOX ", idtmed[505], par, 3); // Plexigl.
 566   gMC->Gspos ("FECB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
 567   par[2] = (zFLTC *0.5);
 568   gMC->Gsvolu("FECC", "BOX ", idtmed[505], par, 3); // Plexigl.
 569   gMC->Gspos ("FECC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
 570
 571   // frame of Air
 572   ycoor += par[1];
 573   par[0] = xFLT*0.5;
 574   par[1] = (yFLT/2-ycoor-khAlWall)*0.5; // Aluminum layer considered (0.18 cm)
 575   par[2] = (zFLTA *0.5);
 576   ycoor += par[1];
 577   gMC->Gsvolu("FAIA", "BOX ", idtmed[500], par, 3); // Air
 578   gMC->Gspos ("FAIA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
 579   par[2] = (zFLTB *0.5);
 580   gMC->Gsvolu("FAIB", "BOX ", idtmed[500], par, 3); // Air
 581   gMC->Gspos ("FAIB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
 582   par[2] = (zFLTC *0.5);
 583   gMC->Gsvolu("FAIC", "BOX ", idtmed[500], par, 3); // Air
 584   gMC->Gspos ("FAIC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
 585
 586
 587   // start with cards and cooling tubes
 588   // finally, cards, cooling tubes and layer for thermal dispersion
 589   // 3 volumes
 590   // card volume definition
 591
 592   // see GEOM200 in GEANT manual
 593   AliMatrix(idrotm[98], 90., 0., 90., 90., 0., 0.); // 0 deg
 594
 595   Float_t cardpar[3];
 596   cardpar[0]= 61.;
 597   cardpar[1]= 5.;
 598   cardpar[2]= 0.1;
 599   gMC->Gsvolu("FCAR", "BOX ", idtmed[504], cardpar, 3); // PCB Card
 600   //alu plate volume definition
 601   cardpar[1]= 3.5;
 602   cardpar[2]= 0.05;
 603   gMC->Gsvolu("FALP", "BOX ", idtmed[508], cardpar, 3); // Alu Plate
 604
 605
 606   // central module positioning (FAIA)
 607   Float_t cardpos[3], aplpos2, stepforcardA=6.625;
 608   cardpos[0]= 0.;
 609   cardpos[1]= -0.5;
 610   cardpos[2]= -53.;
 611   Float_t aplpos1 = -2.;
 612   Int_t icard;
 613   for (icard=0; icard<15; ++icard) {
 614     cardpos[2]= cardpos[2]+stepforcardA;
 615     aplpos2 = cardpos[2]+0.15;
 616     gMC->Gspos("FCAR",icard,"FAIA",cardpos[0],cardpos[1],cardpos[2],idrotm[98],"ONLY");
 617     gMC->Gspos("FALP",icard,"FAIA",cardpos[0],aplpos1,aplpos2,idrotm[98],"ONLY");
 618
 619   }
 620
 621
 622   // intermediate module positioning (FAIB)
 623   Float_t stepforcardB= 7.05;
 624   cardpos[2]= -70.5;
 625   for (icard=0; icard<19; ++icard) {
 626     cardpos[2]= cardpos[2]+stepforcardB;
 627     aplpos2 = cardpos[2]+0.15;
 628     gMC->Gspos("FCAR",icard,"FAIB",cardpos[0],cardpos[1],cardpos[2],idrotm[98],"ONLY");
 629     gMC->Gspos("FALP",icard,"FAIB",cardpos[0],aplpos1,aplpos2,idrotm[98],"ONLY");
 630   }
 631
 632
 633   // outer module positioning (FAIC)
 634   Float_t stepforcardC= 8.45238;
 635   cardpos[2]= -88.75;
 636   for (icard=0; icard<20; ++icard) {
 637     cardpos[2]= cardpos[2]+stepforcardC;
 638     aplpos2 = cardpos[2]+0.15;
 639     gMC->Gspos("FCAR",icard,"FAIC",cardpos[0],cardpos[1],cardpos[2],idrotm[98],"ONLY");
 640     gMC->Gspos("FALP",icard,"FAIC",cardpos[0],aplpos1,aplpos2,idrotm[98],"ONLY");
 641   }
 642
 643   // tube volume definition
 644   Float_t tubepar[3];
 645   tubepar[0]= 0.;
 646   tubepar[1]= 0.4;
 647   tubepar[2]= 61.;
 648   gMC->Gsvolu("FTUB", "TUBE", idtmed[516], tubepar, 3); // cooling tubes (steel)
 649   tubepar[0]= 0.;
 650   tubepar[1]= 0.35;
 651   tubepar[2]= 61.;
 652   gMC->Gsvolu("FITU", "TUBE", idtmed[515], tubepar, 3); // cooling water
 653   // positioning water tube into the steel one
 654   gMC->Gspos("FITU",1,"FTUB",0.,0.,0.,0,"ONLY");
 655
 656
 657   // rotation matrix
 658   AliMatrix(idrotm[99], 180., 90., 90., 90., 90., 0.);
 659   // central module positioning (FAIA)
 660   Float_t tubepos[3], tdis=0.6;
 661   tubepos[0]= 0.;
 662   tubepos[1]= cardpos[1];
 663   tubepos[2]= -53.+tdis;
 664   //  tub1pos = 5.;
 665   Int_t itub;
 666   for (itub=0; itub<15; ++itub) {
 667     tubepos[2]= tubepos[2]+stepforcardA;
 668     gMC->Gspos("FTUB",itub,"FAIA",tubepos[0],tubepos[1],tubepos[2],idrotm[99],
 669                "ONLY");
 670   }
 671
 672
 673   // intermediate module positioning (FAIB)
 674   tubepos[2]= -70.5+tdis;
 675   for (itub=0; itub<19; ++itub) {
 676     tubepos[2]= tubepos[2]+stepforcardB;
 677     gMC->Gspos("FTUB",itub,"FAIB",tubepos[0],tubepos[1],tubepos[2],idrotm[99],
 678                "ONLY");
 679   }
 680
 681   // outer module positioning (FAIC)
 682   tubepos[2]= -88.75+tdis;
 683   for (itub=0; itub<20; ++itub) {
 684     tubepos[2]= tubepos[2]+stepforcardC;
 685     gMC->Gspos("FTUB",itub,"FAIC",tubepos[0],tubepos[1],tubepos[2],idrotm[99],
 686                "ONLY");
 687   }
 688
 689 }
 690
 691 //_____________________________________________________________________________
 692 void AliTOFv2::DrawModule() const
 693 {
 694   //
 695   // Draw a shaded view of the Time Of Flight version 2
 696   //
 697   // Set everything unseen
 698   gMC->Gsatt("*", "seen", -1);
 699   //
 700   // Set ALIC mother transparent
 701   gMC->Gsatt("ALIC","SEEN",0);
 702   //
 703   // Set the volumes visible
 704   gMC->Gsatt("ALIC","SEEN",0);
 705
 706   gMC->Gsatt("FTOA","SEEN",1);
 707   gMC->Gsatt("FTOB","SEEN",1);
 708   gMC->Gsatt("FTOC","SEEN",1);
 709   gMC->Gsatt("FLTA","SEEN",1);
 710   gMC->Gsatt("FLTB","SEEN",1);
 711   gMC->Gsatt("FLTC","SEEN",1);
 712   gMC->Gsatt("FPLA","SEEN",1);
 713   gMC->Gsatt("FPLB","SEEN",1);
 714   gMC->Gsatt("FPLC","SEEN",1);
 715   gMC->Gsatt("FSTR","SEEN",1);
 716   gMC->Gsatt("FPEA","SEEN",1);
 717   gMC->Gsatt("FPEB","SEEN",1);
 718   gMC->Gsatt("FPEC","SEEN",1);
 719
 720   gMC->Gsatt("FLZ1","SEEN",0);
 721   gMC->Gsatt("FLZ2","SEEN",0);
 722   gMC->Gsatt("FLZ3","SEEN",0);
 723   gMC->Gsatt("FLX1","SEEN",0);
 724   gMC->Gsatt("FLX2","SEEN",0);
 725   gMC->Gsatt("FLX3","SEEN",0);
 726   gMC->Gsatt("FPAD","SEEN",0);
 727
 728   gMC->Gdopt("hide", "on");
 729   gMC->Gdopt("shad", "on");
 730   gMC->Gsatt("*", "fill", 7);
 731   gMC->SetClipBox(".");
 732   gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
 733   gMC->DefaultRange();
 734   gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
 735   gMC->Gdhead(1111, "Time Of Flight");
 736   gMC->Gdman(18, 4, "MAN");
 737   gMC->Gdopt("hide","off");
 738 }
 739 //_____________________________________________________________________________
 740 void AliTOFv2::DrawDetectorModules()
 741 {
 742 //
 743 // Draw a shaded view of the TOF detector version 2
 744 //
 745
 746 //Set ALIC mother transparent
 747  gMC->Gsatt("ALIC","SEEN",0);
 748
 749 //
 750 //Set volumes visible
 751 //
 752 //=====> Level 1
 753   // Level 1 for TOF volumes
 754   gMC->Gsatt("B077","seen",0);
 755
 756
 757 //==========> Level 2
 758   // Level 2
 759   gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
 760   gMC->Gsatt("B071","seen",0);
 761   gMC->Gsatt("B074","seen",0);
 762   gMC->Gsatt("B075","seen",0);
 763   gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
 764
 765
 766   // Level 2 of B071
 767   gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped   -
 768   gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped   -
 769   gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped   -
 770   gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped   -
 771   gMC->Gsatt("B056","seen",0);  // B056 does not has sub-levels  -
 772   gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped   -
 773   gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped   -
 774   gMC->Gsatt("BTR1","seen",0);  // BTR1 do not have sub-levels   -
 775   gMC->Gsatt("BTO1","seen",0);
 776
 777
 778   // Level 2 of B074
 779   gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
 780   gMC->Gsatt("BTO2","seen",0);
 781
 782   // Level 2 of B075
 783   gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
 784   gMC->Gsatt("BTO3","seen",0);
 785
 786 // ==================> Level 3
 787   // Level 3 of B071 / Level 2 of BTO1
 788   gMC->Gsatt("FTOC","seen",-2);
 789   gMC->Gsatt("FTOB","seen",-2);
 790   gMC->Gsatt("FTOA","seen",-2);
 791
 792   // Level 3 of B074 / Level 2 of BTO2
 793   // -> cfr previous settings
 794
 795   // Level 3 of B075 / Level 2 of BTO3
 796   // -> cfr previous settings
 797
 798   gMC->Gdopt("hide","on");
 799   gMC->Gdopt("shad","on");
 800   gMC->Gsatt("*", "fill", 5);
 801   gMC->SetClipBox(".");
 802   gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
 803   gMC->DefaultRange();
 804   gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
 805   gMC->Gdhead(1111,"TOF detector V1");
 806   gMC->Gdman(18, 4, "MAN");
 807   gMC->Gdopt("hide","off");
 808 }
 809
 810 //_____________________________________________________________________________
 811 void AliTOFv2::DrawDetectorStrips()
 812 {
 813 //
 814 // Draw a shaded view of the TOF strips for version 2
 815 //
 816
 817 //Set ALIC mother transparent
 818  gMC->Gsatt("ALIC","SEEN",0);
 819
 820 //
 821 //Set volumes visible
 822 //=====> Level 1
 823   // Level 1 for TOF volumes
 824   gMC->Gsatt("B077","seen",0);
 825
 826 //==========> Level 2
 827   // Level 2
 828   gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
 829   gMC->Gsatt("B071","seen",0);
 830   gMC->Gsatt("B074","seen",0);
 831   gMC->Gsatt("B075","seen",0);
 832   gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
 833
 834   // Level 2 of B071
 835   gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped   -
 836   gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped   -
 837   gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped   -
 838   gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped   -
 839   gMC->Gsatt("B056","seen",0);  // B056 does not has sub-levels  -
 840   gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped   -
 841   gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped   -
 842   gMC->Gsatt("BTR1","seen",0);  // BTR1 do not have sub-levels   -
 843   gMC->Gsatt("BTO1","seen",0);
 844
 845 // ==================> Level 3
 846   // Level 3 of B071 / Level 2 of BTO1
 847   gMC->Gsatt("FTOC","seen",0);
 848   gMC->Gsatt("FTOB","seen",0);
 849   gMC->Gsatt("FTOA","seen",0);
 850
 851   // Level 3 of B074 / Level 2 of BTO2
 852   // -> cfr previous settings
 853
 854   // Level 3 of B075 / Level 2 of BTO3
 855   // -> cfr previous settings
 856
 857
 858 // ==========================> Level 4
 859   // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOC
 860   gMC->Gsatt("FLTC","seen",0);
 861   // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOB
 862   gMC->Gsatt("FLTB","seen",0);
 863   // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOA
 864   gMC->Gsatt("FLTA","seen",0);
 865
 866   // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOC
 867   // -> cfr previous settings
 868   // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOB
 869   // -> cfr previous settings
 870
 871   // Level 4 of B075 / Level 3 of BTO3 / Level 2 of FTOC
 872   // -> cfr previous settings
 873
 874 //======================================> Level 5
 875   // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOC / Level 2 of FLTC
 876   gMC->Gsatt("FALC","seen",0); // no children for FALC
 877   gMC->Gsatt("FSTR","seen",-2);
 878   gMC->Gsatt("FPEC","seen",0); // no children for FPEC
 879   gMC->Gsatt("FECC","seen",0); // no children for FECC
 880   gMC->Gsatt("FWAC","seen",0); // no children for FWAC
 881   gMC->Gsatt("FAIC","seen",0); // no children for FAIC
 882
 883   // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOB / Level 2 of FLTB
 884   gMC->Gsatt("FALB","seen",0); // no children for FALB
 885 //-->  gMC->Gsatt("FSTR","seen",-2);
 886
 887
 888   // -> cfr previous settings
 889   gMC->Gsatt("FPEB","seen",0); // no children for FPEB
 890   gMC->Gsatt("FECB","seen",0); // no children for FECB
 891   gMC->Gsatt("FWAB","seen",0); // no children for FWAB
 892   gMC->Gsatt("FAIB","seen",0); // no children for FAIB
 893
 894   // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOA / Level 2 of FLTA
 895   gMC->Gsatt("FALA","seen",0); // no children for FALB
 896 //-->  gMC->Gsatt("FSTR","seen",-2);
 897   // -> cfr previous settings
 898   gMC->Gsatt("FPEA","seen",0); // no children for FPEA
 899   gMC->Gsatt("FECA","seen",0); // no children for FECA
 900   gMC->Gsatt("FWAA","seen",0); // no children for FWAA
 901   gMC->Gsatt("FAIA","seen",0); // no children for FAIA
 902
 903   // Level 2 of B074
 904   gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
 905   gMC->Gsatt("BTO2","seen",0);
 906
 907   // Level 2 of B075
 908   gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
 909   gMC->Gsatt("BTO3","seen",0);
 910
 911 // for others Level 5, cfr. previous settings
 912
 913   gMC->Gdopt("hide","on");
 914   gMC->Gdopt("shad","on");
 915   gMC->Gsatt("*", "fill", 5);
 916   gMC->SetClipBox(".");
 917   gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
 918   gMC->DefaultRange();
 919   gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
 920   gMC->Gdhead(1111,"TOF Strips V1");
 921   gMC->Gdman(18, 4, "MAN");
 922   gMC->Gdopt("hide","off");
 923 }
 924
 925 //_____________________________________________________________________________
 926 void AliTOFv2::CreateMaterials()
 927 {
 928   //
 929   // Define materials for the Time Of Flight
 930   //
 931   AliTOF::CreateMaterials();
 932 }
 933
 934 //_____________________________________________________________________________
 935 void AliTOFv2::Init()
 936 {
 937   //
 938   // Initialise the detector after the geometry has been defined
 939   //
 940   if(fDebug) {
 941     printf("%s: **************************************"
 942            "  TOF  "
 943            "**************************************\n",ClassName());
 944     printf("\n%s:   Version 2 of TOF initialing, "
 945            "TOF with holes for PHOS and HMPID \n",ClassName());
 946   }
 947
 948   AliTOF::Init();
 949
 950   fIdFTOA = gMC->VolId("FTOA");
 951   fIdFTOB = gMC->VolId("FTOB");
 952   fIdFTOC = gMC->VolId("FTOC");
 953   fIdFLTA = gMC->VolId("FLTA");
 954   fIdFLTB = gMC->VolId("FLTB");
 955   fIdFLTC = gMC->VolId("FLTC");
 956
 957   if(fDebug) {
 958     printf("%s: **************************************"
 959            "  TOF  "
 960            "**************************************\n",ClassName());
 961   }
 962 }
 963
 964 //_____________________________________________________________________________
 965 void AliTOFv2::StepManager()
 966 {
 967   //
 968   // Procedure called at each step in the Time Of Flight
 969   //
 970   TLorentzVector mom, pos;
 971   Float_t xm[3],pm[3],xpad[3],ppad[3];
 972   Float_t hits[13],phi,phid,z;
 973   Int_t   vol[5];
 974   Int_t   sector, plate, padx, padz, strip;
 975   Int_t   copy, padzid, padxid, stripid, i;
 976   Int_t   *idtmed = fIdtmed->GetArray()-499;
 977   Float_t incidenceAngle;
 978
 979   if(gMC->CurrentMedium()==idtmed[513] &&
 980      gMC->IsTrackEntering() && gMC->TrackCharge()
 981      && gMC->CurrentVolID(copy)==fIdSens)
 982   {
 983     // getting information about hit volumes
 984
 985     padzid=gMC->CurrentVolOffID(2,copy);
 986     padz=copy;
 987
 988     padxid=gMC->CurrentVolOffID(1,copy);
 989     padx=copy;
 990
 991     stripid=gMC->CurrentVolOffID(4,copy);
 992     strip=copy;
 993
 994     gMC->TrackPosition(pos);
 995     gMC->TrackMomentum(mom);
 996
 997 //    Double_t NormPos=1./pos.Rho();
 998     Double_t normMom=1./mom.Rho();
 999
1000 //  getting the cohordinates in pad ref system
1001     xm[0] = (Float_t)pos.X();
1002     xm[1] = (Float_t)pos.Y();
1003     xm[2] = (Float_t)pos.Z();
1004
1005     pm[0] = (Float_t)mom.X()*normMom;
1006     pm[1] = (Float_t)mom.Y()*normMom;
1007     pm[2] = (Float_t)mom.Z()*normMom;
1008
1009     gMC->Gmtod(xm,xpad,1);
1010     gMC->Gmtod(pm,ppad,2);
1011
1012     if (ppad[1] > 1.) ppad[1]=1;
1013     if (ppad[1] < -1.) ppad[1]=-1;
1014     incidenceAngle = TMath::ACos(ppad[1])*kRaddeg;
1015
1016     z = pos[2];
1017
1018     plate = 0;
1019     if (TMath::Abs(z) <=  fZlenA*0.5)  plate = 2; //3; // AdC
1020     if (z < (fZlenA*0.5+fZlenB) &&
1021         z >  fZlenA*0.5)               plate = 1; //4; // AdC
1022     if (z >-(fZlenA*0.5+fZlenB) &&
1023         z < -fZlenA*0.5)               plate = 3; //2; // AdC
1024     if (z > (fZlenA*0.5+fZlenB))       plate = 0; //5;
1025     if (z <-(fZlenA*0.5+fZlenB))       plate = 4; //1; // AdC
1026
1027     if (plate==0) strip=AliTOFConstants::fgkNStripC-strip; // AdC
1028     else if (plate==1) strip=AliTOFConstants::fgkNStripB-strip; // AdC
1029     else strip--; // AdC
1030
1031     if (z<=0.) padx=AliTOFConstants::fgkNpadX-padx; // AdC
1032     else padx--; // AdC
1033
1034     if (plate==3 || plate==4) padz=AliTOFConstants::fgkNpadZ-padz; // AdC
1035     else padz--; // AdC
1036
1037     phi = pos.Phi();
1038     if (phi>=0.) phid = phi*kRaddeg; //+180.; // AdC
1039     else phid = phi*kRaddeg + 360.; //+180.; // AdC
1040     sector = Int_t (phid/20.);
1041     //sector++; // AdC
1042
1043     for(i=0;i<3;++i) {
1044       hits[i]   = pos[i];
1045       hits[i+3] = pm[i];
1046     }
1047
1048     hits[6] = mom.Rho();
1049     hits[7] = pos[3];
1050     hits[8] = xpad[0];
1051     hits[9] = xpad[1];
1052     hits[10]= xpad[2];
1053     hits[11]= incidenceAngle;
1054     hits[12]= gMC->Edep();
1055
1056     vol[0]= sector;
1057     vol[1]= plate;
1058     vol[2]= strip;
1059     vol[3]= padx;
1060     vol[4]= padz;
1061
1062     AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(),vol, hits);
1063   }
1064 }