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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  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 <TBRIK.h>
  50 #include <TGeometry.h>
  51 #include <TLorentzVector.h>
  52 #include <TNode.h>
  53 #include <TObject.h>
  54 #include <TVirtualMC.h>
  55
  56 #include "AliConst.h"
  57 #include "AliMagF.h"
  58 #include "AliRun.h"
  59 #include "AliTOFv2.h"
  60 #include "AliTOFConstants.h" // AdC
  61 #include "AliMC.h"
  62
  63 ClassImp(AliTOFv2)
  64
  65 //_____________________________________________________________________________
  66 AliTOFv2::AliTOFv2()
  67 {
  68   //
  69   // Default constructor
  70   //
  71 }
  72
  73 //_____________________________________________________________________________
  74 AliTOFv2::AliTOFv2(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 AliTOFv2::CreateGeometry()
  97 {
  98   //
  99   // Create geometry for Time Of Flight version 0
 100   //
 101   //Begin_Html
 102   /*
 103     <img src="picts/AliTOFv2.gif">
 104   */
 105   //End_Html
 106   //
 107   // Creates common geometry
 108   //
 109   AliTOF::CreateGeometry();
 110 }
 111
 112 //_____________________________________________________________________________
 113 void AliTOFv2::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
 159   gMC->Gspos("FTOA", 0, "BTO1", 0, zcor3,  0, idrotm[0], "ONLY");
 160
 161   Float_t db = 0.5;//cm
 162   Float_t xFLT, xFST, yFLT, zFLTA, zFLTB, zFLTC;
 163
 164   xFLT = fStripLn;
 165   yFLT = ytof;
 166   zFLTA = zlenA;
 167   zFLTB = zlenB;
 168   zFLTC = zlenC;
 169
 170   xFST = xFLT-fDeadBndX*2;//cm
 171
 172 // Sizes of MRPC pads
 173
 174   Float_t yPad = 0.505;//cm
 175
 176 // Large not sensitive volumes with Insensitive Freon
 177   par[0] = xFLT*0.5;
 178   par[1] = yFLT*0.5;
 179
 180   if(fDebug)
 181     cout <<ClassName()
 182          <<": ************************* TOF geometry **************************"
 183          <<endl;
 184
 185   par[2] = (zFLTA *0.5);
 186   gMC->Gsvolu("FLTA", "BOX ", idtmed[512], par, 3); // Insensitive Freon
 187   gMC->Gspos ("FLTA", 0, "FTOA", 0., 0., 0., 0, "ONLY");
 188
 189   par[2] = (zFLTB * 0.5);
 190   gMC->Gsvolu("FLTB", "BOX ", idtmed[512], par, 3); // Insensitive Freon
 191   gMC->Gspos ("FLTB", 0, "FTOB", 0., 0., 0., 0, "ONLY");
 192
 193   par[2] = (zFLTC * 0.5);
 194   gMC->Gsvolu("FLTC", "BOX ", idtmed[512], par, 3); // Insensitive Freon
 195   gMC->Gspos ("FLTC", 0, "FTOC", 0., 0., 0., 0, "ONLY");
 196
 197   ///// Layers of Aluminum before and after detector /////
 198   ///// Aluminum Box for Modules (1.8 mm thickness)  /////
 199   ///// lateral walls not simulated for the time being
 200   //const Float_t khAlWall = 0.18;
 201   // fp to be checked
 202   const Float_t khAlWall = 0.11;
 203   par[0] = xFLT*0.5;
 204   par[1] = khAlWall/2.;//cm
 205   ycoor = -yFLT/2 + par[1];
 206   par[2] = (zFLTA *0.5);
 207   gMC->Gsvolu("FALA", "BOX ", idtmed[508], par, 3); // Alluminium
 208   gMC->Gspos ("FALA", 1, "FLTA", 0., ycoor, 0., 0, "ONLY");
 209   gMC->Gspos ("FALA", 2, "FLTA", 0.,-ycoor, 0., 0, "ONLY");
 210   par[2] = (zFLTB *0.5);
 211   gMC->Gsvolu("FALB", "BOX ", idtmed[508], par, 3); // Alluminium
 212   gMC->Gspos ("FALB", 1, "FLTB", 0., ycoor, 0., 0, "ONLY");
 213   gMC->Gspos ("FALB", 2, "FLTB", 0.,-ycoor, 0., 0, "ONLY");
 214   par[2] = (zFLTC *0.5);
 215   gMC->Gsvolu("FALC", "BOX ", idtmed[508], par, 3); // Alluminium
 216   gMC->Gspos ("FALC", 1, "FLTC", 0., ycoor, 0., 0, "ONLY");
 217   gMC->Gspos ("FALC", 2, "FLTC", 0.,-ycoor, 0., 0, "ONLY");
 218
 219   ///////////////// Detector itself //////////////////////
 220
 221   const Float_t  kdeadBound  =  fDeadBndZ; //cm non-sensitive between the pad edge
 222   //and the boundary of the strip
 223   const Int_t    knx    = fNpadX;          // number of pads along x
 224   const Int_t    knz    = fNpadZ;          // number of pads along z
 225   const Float_t  kspace = fSpace;            //cm distance from the front plate of the box
 226
 227   Float_t zSenStrip  = fZpad*fNpadZ;//cm
 228   Float_t stripWidth = zSenStrip + 2*kdeadBound;
 229
 230   par[0] = xFLT*0.5;
 231   par[1] = yPad*0.5;
 232   par[2] = stripWidth*0.5;
 233
 234   // new description for strip volume -double stack strip-
 235   // -- all constants are expressed in cm
 236   // heigth of different layers
 237   const Float_t khhony = 0.8     ;   // heigth of HONY  Layer
 238   const Float_t khpcby = 0.08    ;   // heigth of PCB   Layer
 239   const Float_t khmyly = 0.035   ;   // heigth of MYLAR Layer
 240   const Float_t khgraphy = 0.02  ;   // heigth of GRAPHITE Layer
 241   const Float_t khglasseiy = 0.135;   // 0.6 Ext. Glass + 1.1 i.e. (Int. Glass/2) (mm)
 242   const Float_t khsensmy = 0.11  ;   // heigth of Sensitive Freon Mixture
 243   const Float_t kwsensmz = 2*3.5 ;   // cm
 244   const Float_t klsensmx = 48*2.5;   // cm
 245   const Float_t kwpadz = 3.5;   // cm z dimension of the FPAD volume
 246   const Float_t klpadx = 2.5;   // cm x dimension of the FPAD volume
 247
 248   // heigth of the FSTR Volume (the strip volume)
 249   const Float_t khstripy = 2*khhony+3*khpcby+4*(khmyly+khgraphy+khglasseiy)+2*khsensmy;
 250   // width  of the FSTR Volume (the strip volume)
 251   const Float_t kwstripz = 10.;
 252   // length of the FSTR Volume (the strip volume)
 253   const Float_t klstripx = 122.;
 254
 255   Float_t parfp[3]={klstripx*0.5,khstripy*0.5,kwstripz*0.5};
 256   // coordinates of the strip center in the strip reference frame; used for positioning
 257   // internal strip volumes
 258   Float_t posfp[3]={0.,0.,0.};
 259
 260
 261   // FSTR volume definition and filling this volume with non sensitive Gas Mixture
 262   gMC->Gsvolu("FSTR","BOX",idtmed[512],parfp,3);
 263   //-- HONY Layer definition
 264   //  parfp[0] = -1;
 265   parfp[1] = khhony*0.5;
 266   //  parfp[2] = -1;
 267   gMC->Gsvolu("FHON","BOX",idtmed[503],parfp,3);
 268   // positioning 2 HONY Layers on FSTR volume
 269
 270   posfp[1]=-khstripy*0.5+parfp[1];
 271   gMC->Gspos("FHON",1,"FSTR",0., posfp[1],0.,0,"ONLY");
 272   gMC->Gspos("FHON",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 273
 274   //-- PCB Layer definition
 275   parfp[1] = khpcby*0.5;
 276   gMC->Gsvolu("FPCB","BOX",idtmed[504],parfp,3);
 277   // positioning 2 PCB Layers on FSTR volume
 278   posfp[1]=-khstripy*0.5+khhony+parfp[1];
 279   gMC->Gspos("FPCB",1,"FSTR",0., posfp[1],0.,0,"ONLY");
 280   gMC->Gspos("FPCB",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 281   // positioning the central PCB layer
 282   gMC->Gspos("FPCB",3,"FSTR",0.,0.,0.,0,"ONLY");
 283
 284
 285
 286   //-- MYLAR Layer definition
 287   parfp[1] = khmyly*0.5;
 288   gMC->Gsvolu("FMYL","BOX",idtmed[511],parfp,3);
 289   // positioning 2 MYLAR Layers on FSTR volume
 290   posfp[1] = -khstripy*0.5+khhony+khpcby+parfp[1];
 291   gMC->Gspos("FMYL",1,"FSTR",0., posfp[1],0.,0,"ONLY");
 292   gMC->Gspos("FMYL",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 293   // adding further 2 MYLAR Layers on FSTR volume
 294   posfp[1] = khpcby*0.5+parfp[1];
 295   gMC->Gspos("FMYL",3,"FSTR",0., posfp[1],0.,0,"ONLY");
 296   gMC->Gspos("FMYL",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 297
 298
 299   //-- Graphite Layer definition
 300   parfp[1] = khgraphy*0.5;
 301   gMC->Gsvolu("FGRP","BOX",idtmed[502],parfp,3);
 302   // positioning 2 Graphite Layers on FSTR volume
 303   posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+parfp[1];
 304   gMC->Gspos("FGRP",1,"FSTR",0., posfp[1],0.,0,"ONLY");
 305   gMC->Gspos("FGRP",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 306   // adding further 2 Graphite Layers on FSTR volume
 307   posfp[1] = khpcby*0.5+khmyly+parfp[1];
 308   gMC->Gspos("FGRP",3,"FSTR",0., posfp[1],0.,0,"ONLY");
 309   gMC->Gspos("FGRP",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 310
 311
 312   //-- Glass (EXT. +Semi INT.) Layer definition
 313   parfp[1] = khglasseiy*0.5;
 314   gMC->Gsvolu("FGLA","BOX",idtmed[514],parfp,3);
 315   // positioning 2 Glass Layers on FSTR volume
 316   posfp[1] = -khstripy*0.5+khhony+khpcby+khmyly+khgraphy+parfp[1];
 317   gMC->Gspos("FGLA",1,"FSTR",0., posfp[1],0.,0,"ONLY");
 318   gMC->Gspos("FGLA",2,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 319   // adding further 2 Glass Layers on FSTR volume
 320   posfp[1] = khpcby*0.5+khmyly+khgraphy+parfp[1];
 321   gMC->Gspos("FGLA",3,"FSTR",0., posfp[1],0.,0,"ONLY");
 322   gMC->Gspos("FGLA",4,"FSTR",0.,-posfp[1],0.,0,"ONLY");
 323
 324
 325   //-- Sensitive Mixture Layer definition
 326   parfp[0] = klsensmx*0.5;
 327   parfp[1] = khsensmy*0.5;
 328   parfp[2] = kwsensmz*0.5;
 329   gMC->Gsvolu("FSEN","BOX",idtmed[513],parfp,3);
 330   gMC->Gsvolu("FNSE","BOX",idtmed[512],parfp,3);
 331   // positioning 2 gas Layers on FSTR volume
 332   // the upper is insensitive freon
 333   // while the remaining is sensitive
 334   posfp[1] = khpcby*0.5+khmyly+khgraphy+khglasseiy+parfp[1];
 335   gMC->Gspos("FNSE",0,"FSTR", 0., posfp[1],0.,0,"ONLY");
 336   gMC->Gspos("FSEN",0,"FSTR", 0.,-posfp[1],0.,0,"ONLY");
 337
 338   // dividing FSEN along z in knz=2 and along x in knx=48
 339   gMC->Gsdvn("FSEZ","FSEN",knz,3);
 340   gMC->Gsdvn("FSEX","FSEZ",knx,1);
 341
 342   // FPAD volume definition
 343   parfp[0] = klpadx*0.5;
 344   parfp[1] = khsensmy*0.5;
 345   parfp[2] = kwpadz*0.5;
 346   gMC->Gsvolu("FPAD","BOX",idtmed[513],parfp,3);
 347   // positioning the FPAD volumes on previous divisions
 348   gMC->Gspos("FPAD",0,"FSEX",0.,0.,0.,0,"ONLY");
 349
 350   ////  Positioning the Strips  (FSTR) in the FLT volumes  /////
 351
 352   // Plate A (Central)
 353
 354   Float_t t = zFLTC+zFLTB+zFLTA*0.5+ 2*db;//Half Width of Barrel
 355
 356   Float_t gap  = fGapA+0.5; //cm  updated distance between the strip axis
 357   Float_t zpos = 0;
 358   Float_t ang  = 0;
 359   Int_t j=1; // AdC
 360   nrot  = 0;
 361   zcoor = 0;
 362   ycoor = -14.5 + kspace ; //2 cm over front plate
 363
 364   AliMatrix (idrotm[0],  90.,  0.,90.,90.,0., 90.);
 365
 366   Int_t centerLoc= (Int_t)(fNStripA/2.) + 1; // AdC
 367
 368   //gMC->Gspos("FSTR",j,"FLTA",0.,ycoor, 0.,idrotm[0],"ONLY");
 369
 370   if(fDebug) {
 371     printf("%s: %f,  St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,j); // AdC
 372     printf("%s: y = %f,  z = %f, zpos = %f \n",ClassName(),ycoor,zcoor,zpos);
 373   }
 374
 375   zcoor -= zSenStrip;
 376   //j++; // AdC
 377   Int_t upDown = -1; // upDown=-1 -> Upper strip
 378                      // upDown=+1 -> Lower strip
 379   do{
 380     ang = atan(zcoor/radius);
 381     ang *= kRaddeg;
 382     AliMatrix (idrotm[nrot],  90.,  0.,90.-ang,90.,-ang, 90.);
 383     AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
 384     ang /= kRaddeg;
 385     ycoor = -14.5+ kspace; //2 cm over front plate
 386     ycoor += (1-(upDown+1)/2)*gap;
 387     //gMC->Gspos("FSTR",j  ,"FLTA",0.,ycoor, zcoor,idrotm[nrot],  "ONLY");
 388     //gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
 389     gMC->Gspos("FSTR",centerLoc-j,"FLTA",0.,ycoor, zcoor,idrotm[nrot],  "ONLY"); // AdC
 390     gMC->Gspos("FSTR",centerLoc+j,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY"); // AdC
 391
 392     if(fDebug>=1) {
 393       printf("%s: %f,  St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,j); // AdC
 394       printf("%s: y = %f,  z = %f, zpos = %f \n",ClassName(),ycoor,zcoor,zpos);
 395     }
 396
 397     j++; //j += 2; // AdC
 398     upDown*= -1; // Alternate strips
 399     zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
 400       upDown*gap*TMath::Tan(ang)-
 401       (zSenStrip/2)/TMath::Cos(ang);
 402   } while (zcoor-(stripWidth/2)*TMath::Cos(ang)>-t+zFLTC+zFLTB+db*2);
 403
 404   zcoor = zcoor+(zSenStrip/2)/TMath::Cos(ang)+
 405     upDown*gap*TMath::Tan(ang)+
 406     (zSenStrip/2)/TMath::Cos(ang);
 407
 408   gap = fGapB;
 409   zcoor = zcoor-(zSenStrip/2)/TMath::Cos(ang)-
 410     upDown*gap*TMath::Tan(ang)-
 411     (zSenStrip/2)/TMath::Cos(ang);
 412
 413   ang = atan(zcoor/radius);
 414   ang *= kRaddeg;
 415   AliMatrix (idrotm[nrot],  90.,  0.,90.-ang,90.,-ang, 90.);
 416   AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90., ang, 90.);
 417   ang /= kRaddeg;
 418
 419   ycoor = -14.5+ kspace; //2 cm over front plate
 420   ycoor += (1-(upDown+1)/2)*gap;
 421   //gMC->Gspos("FSTR",j  ,"FLTA",0.,ycoor, zcoor,idrotm[nrot],  "ONLY");
 422   //gMC->Gspos("FSTR",j+1,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
 423   gMC->Gspos("FSTR",centerLoc-j,"FLTA",0.,ycoor, zcoor,idrotm[nrot],  "ONLY"); // AdC
 424   gMC->Gspos("FSTR",centerLoc+j,"FLTA",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY"); // AdC
 425   if(fDebug>=1) {
 426     printf("%s: %f,  St. %2i, Pl.3 ",ClassName(),ang*kRaddeg,j); // AdC
 427     printf("%s: y = %f,  z = %f, zpos = %f \n",ClassName(),ycoor,zcoor,zpos);
 428   }
 429
 430   ycoor = -hTof/2.+ kspace;//2 cm over front plate
 431
 432   // Plate  B
 433
 434   nrot = 0;
 435   Int_t i=1; // AdC
 436   upDown = 1;
 437   Float_t deadRegion = 1.0;//cm
 438
 439   zpos = zcoor - (zSenStrip/2)/TMath::Cos(ang)-
 440     upDown*gap*TMath::Tan(ang)-
 441     (zSenStrip/2)/TMath::Cos(ang)-
 442     deadRegion/TMath::Cos(ang);
 443
 444   ang = atan(zpos/radius);
 445   ang *= kRaddeg;
 446   AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
 447   ang /= kRaddeg;
 448   ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
 449   ycoor += (1-(upDown+1)/2)*gap;
 450   zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
 451   gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
 452
 453   if(fDebug>=1) {
 454     printf("%s: %f,  St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
 455     printf("%s: y = %f,  z = %f, zpos = %f \n",ClassName(),ycoor,zcoor,zpos);
 456   }
 457
 458   i++;
 459   upDown*=-1;
 460
 461   do {
 462     zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)-
 463       upDown*gap*TMath::Tan(ang)-
 464       (zSenStrip/2)/TMath::Cos(ang);
 465     ang = atan(zpos/radius);
 466     ang *= kRaddeg;
 467     AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
 468     ang /= kRaddeg;
 469     Float_t deltaSpaceinB=-0.5; // [cm] to avoid overlaps with the end of freon frame
 470     Float_t deltaGapinB=0.5;    // [cm] to avoid overlaps in between initial strips
 471     ycoor = -hTof*0.5+ kspace+deltaSpaceinB ; //2 cm over front plate
 472     ycoor += (1-(upDown+1)/2)*(gap+deltaGapinB);
 473     zcoor = zpos+(zFLTA*0.5+zFLTB*0.5+db); // Moves to the system of the modulus FLTB
 474     gMC->Gspos("FSTR",i, "FLTB", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
 475
 476     if(fDebug>=1) {
 477       printf("%s: %f,  St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
 478       printf("%s: y = %f,  z = %f, zpos = %f \n",ClassName(),ycoor,zcoor,zpos);
 479     }
 480
 481     upDown*=-1;
 482     i++;
 483   } while (TMath::Abs(ang*kRaddeg)<22.5);
 484   //till we reach a tilting angle of 22.5 degrees
 485
 486   ycoor = -hTof*0.5+ kspace ; //2 cm over front plate
 487   zpos = zpos - zSenStrip/TMath::Cos(ang);
 488   // this avoid overlaps in between outer strips in plate B
 489   Float_t deltaMovingUp=0.8;    // [cm]
 490   Float_t deltaMovingDown=-0.5; // [cm]
 491
 492   do {
 493     ang = atan(zpos/radius);
 494     ang *= kRaddeg;
 495     AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
 496     ang /= kRaddeg;
 497     zcoor = zpos+(zFLTB/2+zFLTA/2+db);
 498     gMC->Gspos("FSTR",i, "FLTB", 0., ycoor+deltaMovingDown+deltaMovingUp, zcoor,idrotm[nrot], "ONLY");
 499     deltaMovingUp+=0.8; // update delta moving toward the end of the plate
 500     zpos = zpos - zSenStrip/TMath::Cos(ang);
 501     if(fDebug>=1) {
 502       printf("%s: %f,  St. %2i, Pl.4 ",ClassName(),ang*kRaddeg,i);
 503       printf("%s: y = %f,  z = %f, zpos = %f \n",ClassName(),ycoor,zcoor,zpos);
 504     }
 505     i++;
 506
 507   }  while (zpos-stripWidth*0.5/TMath::Cos(ang)>-t+zFLTC+db);
 508
 509   // Plate  C
 510
 511   zpos = zpos + zSenStrip/TMath::Cos(ang);
 512
 513   zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)+
 514     gap*TMath::Tan(ang)-
 515     (zSenStrip/2)/TMath::Cos(ang);
 516
 517   nrot = 0;
 518   i=0;
 519   Float_t deltaGap=-2.5; // [cm] update distance from strip center and plate
 520   ycoor= -hTof*0.5+kspace+gap+deltaGap;
 521
 522   do {
 523     i++;
 524     ang = atan(zpos/radius);
 525     ang *= kRaddeg;
 526     AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
 527     ang /= kRaddeg;
 528     zcoor = zpos+(zFLTC*0.5+zFLTB+zFLTA*0.5+db*2);
 529     gMC->Gspos("FSTR",i, "FLTC", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
 530
 531     if(fDebug>=1) {
 532       printf("%s: %f,  St. %2i, Pl.5 ",ClassName(),ang*kRaddeg,i);
 533       printf("%s: y = %f,  z = %f, zpos = %f \n",ClassName(),ycoor,zcoor,zpos);
 534     }
 535
 536     zpos = zpos - zSenStrip/TMath::Cos(ang);
 537   }  while (zpos-stripWidth*TMath::Cos(ang)*0.5>-t);
 538
 539
 540   ////////// Layers after strips /////////////////
 541   // Al Layer thickness (2.3mm) factor 0.7
 542
 543   Float_t overSpace = fOverSpc;//cm
 544
 545   par[0] = xFLT*0.5;
 546   par[1] = 0.115*0.7; // factor 0.7
 547   par[2] = (zFLTA *0.5);
 548   ycoor = -yFLT/2 + overSpace + par[1];
 549   gMC->Gsvolu("FPEA", "BOX ", idtmed[508], par, 3); // Al
 550   gMC->Gspos ("FPEA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
 551   par[2] = (zFLTB *0.5);
 552   gMC->Gsvolu("FPEB", "BOX ", idtmed[508], par, 3); // Al
 553   gMC->Gspos ("FPEB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
 554   par[2] = (zFLTC *0.5);
 555   gMC->Gsvolu("FPEC", "BOX ", idtmed[508], par, 3); // Al
 556   gMC->Gspos ("FPEC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
 557
 558
 559   // plexiglass thickness: 1.5 mm ; factor 0.3
 560   ycoor += par[1];
 561   par[0] = xFLT*0.5;
 562   par[1] = 0.075*0.3; // factor 0.3
 563   par[2] = (zFLTA *0.5);
 564   ycoor += par[1];
 565   gMC->Gsvolu("FECA", "BOX ", idtmed[505], par, 3); // Plexigl.
 566   gMC->Gspos ("FECA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
 567   par[2] = (zFLTB *0.5);
 568   gMC->Gsvolu("FECB", "BOX ", idtmed[505], par, 3); // Plexigl.
 569   gMC->Gspos ("FECB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
 570   par[2] = (zFLTC *0.5);
 571   gMC->Gsvolu("FECC", "BOX ", idtmed[505], par, 3); // Plexigl.
 572   gMC->Gspos ("FECC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
 573
 574   // frame of Air
 575   ycoor += par[1];
 576   par[0] = xFLT*0.5;
 577   par[1] = (yFLT/2-ycoor-khAlWall)*0.5; // Aluminum layer considered (0.18 cm)
 578   par[2] = (zFLTA *0.5);
 579   ycoor += par[1];
 580   gMC->Gsvolu("FAIA", "BOX ", idtmed[500], par, 3); // Air
 581   gMC->Gspos ("FAIA", 0, "FLTA", 0., ycoor, 0., 0, "ONLY");
 582   par[2] = (zFLTB *0.5);
 583   gMC->Gsvolu("FAIB", "BOX ", idtmed[500], par, 3); // Air
 584   gMC->Gspos ("FAIB", 0, "FLTB", 0., ycoor, 0., 0, "ONLY");
 585   par[2] = (zFLTC *0.5);
 586   gMC->Gsvolu("FAIC", "BOX ", idtmed[500], par, 3); // Air
 587   gMC->Gspos ("FAIC", 0, "FLTC", 0., ycoor, 0., 0, "ONLY");
 588
 589
 590   // start with cards and cooling tubes
 591   // finally, cards, cooling tubes and layer for thermal dispersion
 592   // 3 volumes
 593   // card volume definition
 594
 595   // see GEOM200 in GEANT manual
 596   AliMatrix(idrotm[98], 90., 0., 90., 90., 0., 0.); // 0 deg
 597
 598   Float_t cardpar[3];
 599   cardpar[0]= 61.;
 600   cardpar[1]= 5.;
 601   cardpar[2]= 0.1;
 602   gMC->Gsvolu("FCAR", "BOX ", idtmed[504], cardpar, 3); // PCB Card
 603   //alu plate volume definition
 604   cardpar[1]= 3.5;
 605   cardpar[2]= 0.05;
 606   gMC->Gsvolu("FALP", "BOX ", idtmed[508], cardpar, 3); // Alu Plate
 607
 608
 609   // central module positioning (FAIA)
 610   Float_t cardpos[3], aplpos2, stepforcardA=6.625;
 611   cardpos[0]= 0.;
 612   cardpos[1]= -0.5;
 613   cardpos[2]= -53.;
 614   Float_t aplpos1 = -2.;
 615   Int_t icard;
 616   for (icard=0; icard<15; ++icard) {
 617     cardpos[2]= cardpos[2]+stepforcardA;
 618     aplpos2 = cardpos[2]+0.15;
 619     gMC->Gspos("FCAR",icard,"FAIA",cardpos[0],cardpos[1],cardpos[2],idrotm[98],"ONLY");
 620     gMC->Gspos("FALP",icard,"FAIA",cardpos[0],aplpos1,aplpos2,idrotm[98],"ONLY");
 621
 622   }
 623
 624
 625   // intermediate module positioning (FAIB)
 626   Float_t stepforcardB= 7.05;
 627   cardpos[2]= -70.5;
 628   for (icard=0; icard<19; ++icard) {
 629     cardpos[2]= cardpos[2]+stepforcardB;
 630     aplpos2 = cardpos[2]+0.15;
 631     gMC->Gspos("FCAR",icard,"FAIB",cardpos[0],cardpos[1],cardpos[2],idrotm[98],"ONLY");
 632     gMC->Gspos("FALP",icard,"FAIB",cardpos[0],aplpos1,aplpos2,idrotm[98],"ONLY");
 633   }
 634
 635
 636   // outer module positioning (FAIC)
 637   Float_t stepforcardC= 8.45238;
 638   cardpos[2]= -88.75;
 639   for (icard=0; icard<20; ++icard) {
 640     cardpos[2]= cardpos[2]+stepforcardC;
 641     aplpos2 = cardpos[2]+0.15;
 642     gMC->Gspos("FCAR",icard,"FAIC",cardpos[0],cardpos[1],cardpos[2],idrotm[98],"ONLY");
 643     gMC->Gspos("FALP",icard,"FAIC",cardpos[0],aplpos1,aplpos2,idrotm[98],"ONLY");
 644   }
 645
 646   // tube volume definition
 647   Float_t tubepar[3];
 648   tubepar[0]= 0.;
 649   tubepar[1]= 0.4;
 650   tubepar[2]= 61.;
 651   gMC->Gsvolu("FTUB", "TUBE", idtmed[516], tubepar, 3); // cooling tubes (steel)
 652   tubepar[0]= 0.;
 653   tubepar[1]= 0.35;
 654   tubepar[2]= 61.;
 655   gMC->Gsvolu("FITU", "TUBE", idtmed[515], tubepar, 3); // cooling water
 656   // positioning water tube into the steel one
 657   gMC->Gspos("FITU",1,"FTUB",0.,0.,0.,0,"ONLY");
 658
 659
 660   // rotation matrix
 661   AliMatrix(idrotm[99], 180., 90., 90., 90., 90., 0.);
 662   // central module positioning (FAIA)
 663   Float_t tubepos[3], tdis=0.6;
 664   tubepos[0]= 0.;
 665   tubepos[1]= cardpos[1];
 666   tubepos[2]= -53.+tdis;
 667   //  tub1pos = 5.;
 668   Int_t itub;
 669   for (itub=0; itub<15; ++itub) {
 670     tubepos[2]= tubepos[2]+stepforcardA;
 671     gMC->Gspos("FTUB",itub,"FAIA",tubepos[0],tubepos[1],tubepos[2],idrotm[99],
 672                "ONLY");
 673   }
 674
 675
 676   // intermediate module positioning (FAIB)
 677   tubepos[2]= -70.5+tdis;
 678   for (itub=0; itub<19; ++itub) {
 679     tubepos[2]= tubepos[2]+stepforcardB;
 680     gMC->Gspos("FTUB",itub,"FAIB",tubepos[0],tubepos[1],tubepos[2],idrotm[99],
 681                "ONLY");
 682   }
 683
 684   // outer module positioning (FAIC)
 685   tubepos[2]= -88.75+tdis;
 686   for (itub=0; itub<20; ++itub) {
 687     tubepos[2]= tubepos[2]+stepforcardC;
 688     gMC->Gspos("FTUB",itub,"FAIC",tubepos[0],tubepos[1],tubepos[2],idrotm[99],
 689                "ONLY");
 690   }
 691
 692 }
 693
 694 //_____________________________________________________________________________
 695 void AliTOFv2::DrawModule() const
 696 {
 697   //
 698   // Draw a shaded view of the Time Of Flight version 2
 699   //
 700   // Set everything unseen
 701   gMC->Gsatt("*", "seen", -1);
 702   //
 703   // Set ALIC mother transparent
 704   gMC->Gsatt("ALIC","SEEN",0);
 705   //
 706   // Set the volumes visible
 707   gMC->Gsatt("ALIC","SEEN",0);
 708
 709   gMC->Gsatt("FTOA","SEEN",1);
 710   gMC->Gsatt("FTOB","SEEN",1);
 711   gMC->Gsatt("FTOC","SEEN",1);
 712   gMC->Gsatt("FLTA","SEEN",1);
 713   gMC->Gsatt("FLTB","SEEN",1);
 714   gMC->Gsatt("FLTC","SEEN",1);
 715   gMC->Gsatt("FPLA","SEEN",1);
 716   gMC->Gsatt("FPLB","SEEN",1);
 717   gMC->Gsatt("FPLC","SEEN",1);
 718   gMC->Gsatt("FSTR","SEEN",1);
 719   gMC->Gsatt("FPEA","SEEN",1);
 720   gMC->Gsatt("FPEB","SEEN",1);
 721   gMC->Gsatt("FPEC","SEEN",1);
 722
 723   gMC->Gsatt("FLZ1","SEEN",0);
 724   gMC->Gsatt("FLZ2","SEEN",0);
 725   gMC->Gsatt("FLZ3","SEEN",0);
 726   gMC->Gsatt("FLX1","SEEN",0);
 727   gMC->Gsatt("FLX2","SEEN",0);
 728   gMC->Gsatt("FLX3","SEEN",0);
 729   gMC->Gsatt("FPAD","SEEN",0);
 730
 731   gMC->Gdopt("hide", "on");
 732   gMC->Gdopt("shad", "on");
 733   gMC->Gsatt("*", "fill", 7);
 734   gMC->SetClipBox(".");
 735   gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
 736   gMC->DefaultRange();
 737   gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
 738   gMC->Gdhead(1111, "Time Of Flight");
 739   gMC->Gdman(18, 4, "MAN");
 740   gMC->Gdopt("hide","off");
 741 }
 742 //_____________________________________________________________________________
 743 void AliTOFv2::DrawDetectorModules()
 744 {
 745 //
 746 // Draw a shaded view of the TOF detector version 2
 747 //
 748
 749 //Set ALIC mother transparent
 750  gMC->Gsatt("ALIC","SEEN",0);
 751
 752 //
 753 //Set volumes visible
 754 //
 755 //=====> Level 1
 756   // Level 1 for TOF volumes
 757   gMC->Gsatt("B077","seen",0);
 758
 759
 760 //==========> Level 2
 761   // Level 2
 762   gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
 763   gMC->Gsatt("B071","seen",0);
 764   gMC->Gsatt("B074","seen",0);
 765   gMC->Gsatt("B075","seen",0);
 766   gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
 767
 768
 769   // Level 2 of B071
 770   gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped   -
 771   gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped   -
 772   gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped   -
 773   gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped   -
 774   gMC->Gsatt("B056","seen",0);  // B056 does not has sub-levels  -
 775   gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped   -
 776   gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped   -
 777   gMC->Gsatt("BTR1","seen",0);  // BTR1 do not have sub-levels   -
 778   gMC->Gsatt("BTO1","seen",0);
 779
 780
 781   // Level 2 of B074
 782   gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
 783   gMC->Gsatt("BTO2","seen",0);
 784
 785   // Level 2 of B075
 786   gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
 787   gMC->Gsatt("BTO3","seen",0);
 788
 789 // ==================> Level 3
 790   // Level 3 of B071 / Level 2 of BTO1
 791   gMC->Gsatt("FTOC","seen",-2);
 792   gMC->Gsatt("FTOB","seen",-2);
 793   gMC->Gsatt("FTOA","seen",-2);
 794
 795   // Level 3 of B074 / Level 2 of BTO2
 796   // -> cfr previous settings
 797
 798   // Level 3 of B075 / Level 2 of BTO3
 799   // -> cfr previous settings
 800
 801   gMC->Gdopt("hide","on");
 802   gMC->Gdopt("shad","on");
 803   gMC->Gsatt("*", "fill", 5);
 804   gMC->SetClipBox(".");
 805   gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
 806   gMC->DefaultRange();
 807   gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
 808   gMC->Gdhead(1111,"TOF detector V1");
 809   gMC->Gdman(18, 4, "MAN");
 810   gMC->Gdopt("hide","off");
 811 }
 812
 813 //_____________________________________________________________________________
 814 void AliTOFv2::DrawDetectorStrips()
 815 {
 816 //
 817 // Draw a shaded view of the TOF strips for version 2
 818 //
 819
 820 //Set ALIC mother transparent
 821  gMC->Gsatt("ALIC","SEEN",0);
 822
 823 //
 824 //Set volumes visible
 825 //=====> Level 1
 826   // Level 1 for TOF volumes
 827   gMC->Gsatt("B077","seen",0);
 828
 829 //==========> Level 2
 830   // Level 2
 831   gMC->Gsatt("B076","seen",-1); // all B076 sub-levels skipped -
 832   gMC->Gsatt("B071","seen",0);
 833   gMC->Gsatt("B074","seen",0);
 834   gMC->Gsatt("B075","seen",0);
 835   gMC->Gsatt("B080","seen",0); // B080 does not has sub-level
 836
 837   // Level 2 of B071
 838   gMC->Gsatt("B063","seen",-1); // all B063 sub-levels skipped   -
 839   gMC->Gsatt("B065","seen",-1); // all B065 sub-levels skipped   -
 840   gMC->Gsatt("B067","seen",-1); // all B067 sub-levels skipped   -
 841   gMC->Gsatt("B069","seen",-1); // all B069 sub-levels skipped   -
 842   gMC->Gsatt("B056","seen",0);  // B056 does not has sub-levels  -
 843   gMC->Gsatt("B059","seen",-1); // all B059 sub-levels skipped   -
 844   gMC->Gsatt("B072","seen",-1); // all B072 sub-levels skipped   -
 845   gMC->Gsatt("BTR1","seen",0);  // BTR1 do not have sub-levels   -
 846   gMC->Gsatt("BTO1","seen",0);
 847
 848 // ==================> Level 3
 849   // Level 3 of B071 / Level 2 of BTO1
 850   gMC->Gsatt("FTOC","seen",0);
 851   gMC->Gsatt("FTOB","seen",0);
 852   gMC->Gsatt("FTOA","seen",0);
 853
 854   // Level 3 of B074 / Level 2 of BTO2
 855   // -> cfr previous settings
 856
 857   // Level 3 of B075 / Level 2 of BTO3
 858   // -> cfr previous settings
 859
 860
 861 // ==========================> Level 4
 862   // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOC
 863   gMC->Gsatt("FLTC","seen",0);
 864   // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOB
 865   gMC->Gsatt("FLTB","seen",0);
 866   // Level 4 of B071 / Level 3 of BTO1 / Level 2 of FTOA
 867   gMC->Gsatt("FLTA","seen",0);
 868
 869   // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOC
 870   // -> cfr previous settings
 871   // Level 4 of B074 / Level 3 of BTO2 / Level 2 of FTOB
 872   // -> cfr previous settings
 873
 874   // Level 4 of B075 / Level 3 of BTO3 / Level 2 of FTOC
 875   // -> cfr previous settings
 876
 877 //======================================> Level 5
 878   // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOC / Level 2 of FLTC
 879   gMC->Gsatt("FALC","seen",0); // no children for FALC
 880   gMC->Gsatt("FSTR","seen",-2);
 881   gMC->Gsatt("FPEC","seen",0); // no children for FPEC
 882   gMC->Gsatt("FECC","seen",0); // no children for FECC
 883   gMC->Gsatt("FWAC","seen",0); // no children for FWAC
 884   gMC->Gsatt("FAIC","seen",0); // no children for FAIC
 885
 886   // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOB / Level 2 of FLTB
 887   gMC->Gsatt("FALB","seen",0); // no children for FALB
 888 //-->  gMC->Gsatt("FSTR","seen",-2);
 889
 890
 891   // -> cfr previous settings
 892   gMC->Gsatt("FPEB","seen",0); // no children for FPEB
 893   gMC->Gsatt("FECB","seen",0); // no children for FECB
 894   gMC->Gsatt("FWAB","seen",0); // no children for FWAB
 895   gMC->Gsatt("FAIB","seen",0); // no children for FAIB
 896
 897   // Level 5 of B071 / Level 4 of BTO1 / Level 3 of FTOA / Level 2 of FLTA
 898   gMC->Gsatt("FALA","seen",0); // no children for FALB
 899 //-->  gMC->Gsatt("FSTR","seen",-2);
 900   // -> cfr previous settings
 901   gMC->Gsatt("FPEA","seen",0); // no children for FPEA
 902   gMC->Gsatt("FECA","seen",0); // no children for FECA
 903   gMC->Gsatt("FWAA","seen",0); // no children for FWAA
 904   gMC->Gsatt("FAIA","seen",0); // no children for FAIA
 905
 906   // Level 2 of B074
 907   gMC->Gsatt("BTR2","seen",0); // BTR2 does not has sub-levels -
 908   gMC->Gsatt("BTO2","seen",0);
 909
 910   // Level 2 of B075
 911   gMC->Gsatt("BTR3","seen",0); // BTR3 do not have sub-levels -
 912   gMC->Gsatt("BTO3","seen",0);
 913
 914 // for others Level 5, cfr. previous settings
 915
 916   gMC->Gdopt("hide","on");
 917   gMC->Gdopt("shad","on");
 918   gMC->Gsatt("*", "fill", 5);
 919   gMC->SetClipBox(".");
 920   gMC->SetClipBox("*", 0, 1000, 0, 1000, 0, 1000);
 921   gMC->DefaultRange();
 922   gMC->Gdraw("alic", 45, 40, 0, 10, 10, .015, .015);
 923   gMC->Gdhead(1111,"TOF Strips V1");
 924   gMC->Gdman(18, 4, "MAN");
 925   gMC->Gdopt("hide","off");
 926 }
 927
 928 //_____________________________________________________________________________
 929 void AliTOFv2::CreateMaterials()
 930 {
 931   //
 932   // Define materials for the Time Of Flight
 933   //
 934   AliTOF::CreateMaterials();
 935 }
 936
 937 //_____________________________________________________________________________
 938 void AliTOFv2::Init()
 939 {
 940   //
 941   // Initialise the detector after the geometry has been defined
 942   //
 943   if(fDebug) {
 944     printf("%s: **************************************"
 945            "  TOF  "
 946            "**************************************\n",ClassName());
 947     printf("\n%s:   Version 2 of TOF initialing, "
 948            "TOF with holes for PHOS and HMPID \n",ClassName());
 949   }
 950
 951   AliTOF::Init();
 952
 953   fIdFTOA = gMC->VolId("FTOA");
 954   fIdFTOB = gMC->VolId("FTOB");
 955   fIdFTOC = gMC->VolId("FTOC");
 956   fIdFLTA = gMC->VolId("FLTA");
 957   fIdFLTB = gMC->VolId("FLTB");
 958   fIdFLTC = gMC->VolId("FLTC");
 959
 960   if(fDebug) {
 961     printf("%s: **************************************"
 962            "  TOF  "
 963            "**************************************\n",ClassName());
 964   }
 965 }
 966
 967 //_____________________________________________________________________________
 968 void AliTOFv2::StepManager()
 969 {
 970   //
 971   // Procedure called at each step in the Time Of Flight
 972   //
 973   TLorentzVector mom, pos;
 974   Float_t xm[3],pm[3],xpad[3],ppad[3];
 975   Float_t hits[13],phi,phid,z;
 976   Int_t   vol[5];
 977   Int_t   sector, plate, padx, padz, strip;
 978   Int_t   copy, padzid, padxid, stripid, i;
 979   Int_t   *idtmed = fIdtmed->GetArray()-499;
 980   Float_t incidenceAngle;
 981
 982   if(gMC->CurrentMedium()==idtmed[513] &&
 983      gMC->IsTrackEntering() && gMC->TrackCharge()
 984      && gMC->CurrentVolID(copy)==fIdSens)
 985   {
 986     // getting information about hit volumes
 987
 988     padzid=gMC->CurrentVolOffID(2,copy);
 989     padz=copy;
 990
 991     padxid=gMC->CurrentVolOffID(1,copy);
 992     padx=copy;
 993
 994     stripid=gMC->CurrentVolOffID(4,copy);
 995     strip=copy;
 996
 997     gMC->TrackPosition(pos);
 998     gMC->TrackMomentum(mom);
 999
1000 //    Double_t NormPos=1./pos.Rho();
1001     Double_t normMom=1./mom.Rho();
1002
1003 //  getting the cohordinates in pad ref system
1004     xm[0] = (Float_t)pos.X();
1005     xm[1] = (Float_t)pos.Y();
1006     xm[2] = (Float_t)pos.Z();
1007
1008     pm[0] = (Float_t)mom.X()*normMom;
1009     pm[1] = (Float_t)mom.Y()*normMom;
1010     pm[2] = (Float_t)mom.Z()*normMom;
1011
1012     gMC->Gmtod(xm,xpad,1);
1013     gMC->Gmtod(pm,ppad,2);
1014
1015     if (ppad[1] > 1.) ppad[1]=1;
1016     if (ppad[1] < -1.) ppad[1]=-1;
1017     incidenceAngle = TMath::ACos(ppad[1])*kRaddeg;
1018
1019     z = pos[2];
1020
1021     plate = 0;
1022     if (TMath::Abs(z) <=  fZlenA*0.5)  plate = 2; //3; // AdC
1023     if (z < (fZlenA*0.5+fZlenB) &&
1024         z >  fZlenA*0.5)               plate = 1; //4; // AdC
1025     if (z >-(fZlenA*0.5+fZlenB) &&
1026         z < -fZlenA*0.5)               plate = 3; //2; // AdC
1027     if (z > (fZlenA*0.5+fZlenB))       plate = 0; //5;
1028     if (z <-(fZlenA*0.5+fZlenB))       plate = 4; //1; // AdC
1029
1030     if (plate==0) strip=AliTOFConstants::fgkNStripC-strip; // AdC
1031     else if (plate==1) strip=AliTOFConstants::fgkNStripB-strip; // AdC
1032     else strip--; // AdC
1033
1034     if (z<=0.) padx=AliTOFConstants::fgkNpadX-padx; // AdC
1035     else padx--; // AdC
1036
1037     if (plate==3 || plate==4) padz=AliTOFConstants::fgkNpadZ-padz; // AdC
1038     else padz--; // AdC
1039
1040     phi = pos.Phi();
1041     if (phi>=0.) phid = phi*kRaddeg; //+180.; // AdC
1042     else phid = phi*kRaddeg + 360.; //+180.; // AdC
1043     sector = Int_t (phid/20.);
1044     //sector++; // AdC
1045
1046     for(i=0;i<3;++i) {
1047       hits[i]   = pos[i];
1048       hits[i+3] = pm[i];
1049     }
1050
1051     hits[6] = mom.Rho();
1052     hits[7] = pos[3];
1053     hits[8] = xpad[0];
1054     hits[9] = xpad[1];
1055     hits[10]= xpad[2];
1056     hits[11]= incidenceAngle;
1057     hits[12]= gMC->Edep();
1058
1059     vol[0]= sector;
1060     vol[1]= plate;
1061     vol[2]= strip;
1062     vol[3]= padx;
1063     vol[4]= padz;
1064
1065     AddHit(gAlice->GetMCApp()->GetCurrentTrackNumber(),vol, hits);
1066   }
1067 }