[u/mrichter/AliRoot.git] / TOF / AliTOFv2.cxx

/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/

/*
$Log$
Revision 1.12  1999/10/22 08:04:14  fca
Correct improper use of negative parameters

Revision 1.11  1999/10/16 19:30:05  fca
Corrected Rotation Matrix and CVS log

Revision 1.10  1999/10/15 15:35:20  fca
New version for frame1099 with and without holes

Revision 1.9  1999/09/29 09:24:33  fca
Introduction of the Copyright and cvs Log

*/

///////////////////////////////////////////////////////////////////////////////
//                                                                           //
//  Time Of Flight: design of C.Williams                FCA                  //
//  This class contains the functions for version 1 of the Time Of Flight    //
//  detector.                                                                //
//
//  VERSION WITH 5 MODULES AND TILTED STRIPS 
//  
//   WITH HOLES FOR PHOS AND HMPID 
//   INSIDE A FULL COVERAGE SPACE FRAME
//
//
//   Authors: 
//
//   Alessio Seganti
//   Domenico Vicinanza
//
//   University of Salerno - Italy
//
//
//
//Begin_Html
/*
<img src="picts/AliTOFv2Class.gif">
*/
//End_Html
//                                                                           //
///////////////////////////////////////////////////////////////////////////////

#include <stdlib.h>

#include "AliTOFv2.h"
#include "AliRun.h"
#include "AliConst.h"
 
ClassImp(AliTOFv2)
 
//_____________________________________________________________________________
AliTOFv2::AliTOFv2()
{
  //
  // Default constructor
  //
}
 
//_____________________________________________________________________________
AliTOFv2::AliTOFv2(const char *name, const char *title)
       : AliTOF(name,title)
{
  //
  // Standard constructor
  //
}
 
//_____________________________________________________________________________
void AliTOFv2::CreateGeometry()
{
  //
  // Create geometry for Time Of Flight version 0
  //
  //Begin_Html
  /*
    <img src="picts/AliTOFv2.gif">
  */
  //End_Html
  //
  // Creates common geometry
  //
  AliTOF::CreateGeometry();
}
 
//_____________________________________________________________________________
void AliTOFv2::TOFpc(Float_t xtof, Float_t ytof, Float_t zlen1,
		     Float_t zlen2, Float_t zlen3, Float_t ztof0)
{
  //
  // Definition of the Time Of Fligh Resistive Plate Chambers
  // xFLT, yFLT, zFLT - sizes of TOF modules (large)
  
  Int_t idrotm[100];
  Int_t nrot = 0;
  Float_t  ycoor, zcoor;
  Float_t par[10];
  
  Int_t *idtmed = fIdtmed->GetArray()-499;


  par[0] =  xtof / 2.;
  par[1] =  ytof / 2.;
  par[2] = zlen1 / 2.;
  gMC->Gsvolu("FTO1", "BOX ", idtmed[506], par, 3);
  par[2] = zlen2 / 2.;
  gMC->Gsvolu("FTO2", "BOX ", idtmed[506], par, 3);
  par[2] = zlen3 / 2.;
  gMC->Gsvolu("FTO3", "BOX ", idtmed[506], par, 3);


// Position of modules
  Float_t zcor1 = ztof0 - zlen1/2;
  Float_t zcor2 = ztof0 - zlen1 - zlen2/2.;
  Float_t zcor3 = 0.;

   AliMatrix(idrotm[0], 90., 0., 0., 0., 90, -90.);
   AliMatrix(idrotm[1], 90., 180., 0., 0., 90, 90.);
   gMC->Gspos("FTO1", 1, "BTO1", 0,  zcor1, 0, idrotm[0], "ONLY");
   gMC->Gspos("FTO1", 2, "BTO1", 0, -zcor1, 0, idrotm[1], "ONLY");
   gMC->Gspos("FTO1", 1, "BTO2", 0,  zcor1, 0, idrotm[0], "ONLY");
   gMC->Gspos("FTO1", 2, "BTO2", 0, -zcor1, 0, idrotm[1], "ONLY");
   gMC->Gspos("FTO1", 1, "BTO3", 0,  zcor1, 0, idrotm[0], "ONLY");
   gMC->Gspos("FTO1", 2, "BTO3", 0, -zcor1, 0, idrotm[1], "ONLY");

   gMC->Gspos("FTO2", 1, "BTO1", 0,  zcor2, 0, idrotm[0], "ONLY");
   gMC->Gspos("FTO2", 2, "BTO1", 0, -zcor2, 0, idrotm[1], "ONLY");
   gMC->Gspos("FTO2", 1, "BTO2", 0,  zcor2, 0, idrotm[0], "ONLY");
   gMC->Gspos("FTO2", 2, "BTO2", 0, -zcor2, 0, idrotm[1], "ONLY");

   gMC->Gspos("FTO3", 0, "BTO1", 0, zcor3,  0, idrotm[0], "ONLY");

// Subtraction the distance to TOF module boundaries 

  Float_t db = 7.;
  Float_t xFLT, yFLT, zFLT1, zFLT2, zFLT3; 

  xFLT = xtof -(.5 +.5)*2;
  yFLT = ytof;
  zFLT1 = zlen1 - db;
  zFLT2 = zlen2 - db;
  zFLT3 = zlen3 - db;

  
// Sizes of MRPC pads

  Float_t yPad = 0.505; 
  
// Large not sensitive volumes with CO2 
  par[0] = xFLT/2;
  par[1] = yFLT/2;

  cout <<"************************* TOF geometry **************************"<<endl;

  par[2] = (zFLT1 / 2.);
  gMC->Gsvolu("FLT1", "BOX ", idtmed[506], par, 3); // CO2
  gMC->Gspos("FLT1", 0, "FTO1", 0., 0., 0., 0, "ONLY");

  par[2] = (zFLT2 / 2.);
  gMC->Gsvolu("FLT2", "BOX ", idtmed[506], par, 3); // CO2
  gMC->Gspos("FLT2", 0, "FTO2", 0., 0., 0., 0, "ONLY");

  par[2] = (zFLT3 / 2.); 
  gMC->Gsvolu("FLT3", "BOX ", idtmed[506], par, 3); // CO2
  gMC->Gspos("FLT3", 0, "FTO3", 0., 0., 0., 0, "ONLY");

////////// Layers before detector ////////////////////

// Alluminium layer in front 1.0 mm thick at the beginning
  par[0] = -1;
  par[1] = 0.1;
  par[2] = -1;
  ycoor = -yFLT/2 + par[1];
  gMC->Gsvolu("FMY1", "BOX ", idtmed[508], par, 3); // Alluminium
  gMC->Gspos("FMY1", 0, "FLT1", 0., ycoor, 0., 0, "ONLY");
  gMC->Gsvolu("FMY2", "BOX ", idtmed[508], par, 3); // Alluminium
  gMC->Gspos("FMY2", 0, "FLT2", 0., ycoor, 0., 0, "ONLY");
  gMC->Gsvolu("FMY3", "BOX ", idtmed[508], par, 3); // Alluminium 
  gMC->Gspos("FMY3", 0, "FLT3", 0., ycoor, 0., 0, "ONLY");

// Honeycomb layer (1cm of special polyethilene)
  ycoor = ycoor + par[1];
  par[0] = -1;
  par[1] = 0.5;
  par[2] = -1;
  ycoor = ycoor + par[1];
  gMC->Gsvolu("FPL1", "BOX ", idtmed[503], par, 3); // Hony
  gMC->Gspos("FPL1", 0, "FLT1", 0., ycoor, 0., 0, "ONLY");
  gMC->Gsvolu("FPL2", "BOX ", idtmed[503], par, 3); // Hony
  gMC->Gspos("FPL2", 0, "FLT2", 0., ycoor, 0., 0, "ONLY");
  gMC->Gsvolu("FPL3", "BOX ", idtmed[503], par, 3); // Hony
  gMC->Gspos("FPL3", 0, "FLT3", 0., ycoor, 0., 0, "ONLY");

///////////////// Detector itself //////////////////////

  const Float_t StripWidth = 7.81;//cm
  const Float_t DeadBound = 1.;//cm non-sensitive between the pad edge and the boundary of the strip
  const Int_t nx = 40; // number of pads along x
  const Int_t nz = 2;  // number of pads along z
  const Float_t Gap=4.; //cm  distance between the strip axis
  const Float_t Space = 5.5; //cm distance from the front plate of the box

  Float_t zSenStrip;
  zSenStrip = StripWidth-2*DeadBound;//cm

  par[0] = xFLT/2;
  par[1] = yPad/2; 
  par[2] = StripWidth/2.;
  
  // Glass Layer of detector
  gMC->Gsvolu("FSTR","BOX",idtmed[514],par,3);

  // Freon for non-sesitive boundaries
  par[0] = xFLT/2;
  par[1] = 0.110/2;
  par[2] = -1;
  gMC->Gsvolu("FNSF","BOX",idtmed[512],par,3);
  gMC->Gspos("FNSF",0,"FSTR",0.,0.,0.,0,"ONLY");
  // Mylar for non-sesitive boundaries
  par[1] = 0.025;
  gMC->Gsvolu("FMYI","BOX",idtmed[510],par,3); 
  gMC->Gspos("FMYI",0,"FNSF",0.,0.,0.,0,"ONLY");

  // Mylar for outer layers
  par[1] = 0.035/2;
  ycoor = -yPad/2.+par[1];
  gMC->Gsvolu("FMYX","BOX",idtmed[510],par,3);
  gMC->Gspos("FMYX",1,"FSTR",0.,ycoor,0.,0,"ONLY");
  gMC->Gspos("FMYX",2,"FSTR",0.,-ycoor,0.,0,"ONLY");
  ycoor += par[1];
 
  // Graphyte layers
  par[1] = 0.003/2;
  ycoor += par[1];
  gMC->Gsvolu("FGRL","BOX",idtmed[502],par,3);
  gMC->Gspos("FGRL",1,"FSTR",0.,ycoor,0.,0,"ONLY");
  gMC->Gspos("FGRL",2,"FSTR",0.,-ycoor,0.,0,"ONLY");

  // Freon sensitive layer
  par[0] = -1;
  par[1] = 0.110/2.;
  par[2] = zSenStrip/2.;
  gMC->Gsvolu("FCFC","BOX",idtmed[513],par,3);
  gMC->Gspos("FCFC",0,"FNSF",0.,0.,0.,0,"ONLY");
  
  // Pad definition x & z
  gMC->Gsdvn("FLZ","FCFC", nz, 3); 
  gMC->Gsdvn("FLX","FLZ" , nx, 1); 

  // MRPC pixel itself 
  par[0] = -1;
  par[1] = -1; 
  par[2] = -1;
  gMC->Gsvolu("FPAD", "BOX ", idtmed[513], par, 3);
  gMC->Gspos("FPAD", 0, "FLX", 0., 0., 0., 0, "ONLY");


////  Positioning the Strips  (FSTR) in the FLT volumes  /////

 
  // 3 (Central) Plate 
  Float_t t = zFLT1+zFLT2+zFLT3/2.+7.*2.5;//Half Width of Barrel
  Float_t zpos = 0;
  Float_t ang;
  Float_t Offset;  
  Float_t last;
  nrot = 0;
  Int_t i=1,j=1;
  zcoor=0;
  Int_t UpDown=-1; // UpDown=-1 -> Upper strip, UpDown=+1 -> Lower strip
 
  do{
     ang = atan(zcoor/t);
     ang = ang*kRaddeg;
     AliMatrix (idrotm[nrot]  ,90.,  0.,90.-ang,90.,-ang,90.);
     AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90.,ang,90.);
     ycoor = -29./2.+ Space; //2 cm over front plate
     ycoor += (1-(UpDown+1)/2)*Gap;
     gMC->Gspos("FSTR",j,"FLT3",0.,ycoor,zcoor,idrotm[nrot],"ONLY");
     gMC->Gspos("FSTR",j+1,"FLT3",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
     ang  = ang/kRaddeg;
     
     zcoor=zcoor-(zSenStrip/2)/TMath::Cos(ang)+UpDown*Gap*TMath::Tan(ang)-(zSenStrip/2)/TMath::Cos(ang);
     UpDown*= -1; // Alternate strips 
     i++;
     j+=2;
  } while (zcoor-(StripWidth/2)*TMath::Cos(ang)>-t+zFLT1+zFLT2+7*2.5);
  
  ycoor = -29./2.+ Space; //2 cm over front plate

  // Plate  2
  zpos = -zFLT3/2-7;
  ang = atan(zpos/sqrt(2*t*t-zpos*zpos));
  Offset = StripWidth*TMath::Cos(ang)/2;
  zpos -= Offset;
  nrot = 0;
  i=1;
  // UpDown has not to be reinitialized, so that the arrangement of the strips can continue coherently

  do {
     ang = atan(zpos/sqrt(2*t*t-zpos*zpos));
     ang = ang*kRaddeg;
     AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
     ycoor = -29./2.+ Space ; //2 cm over front plate
     ycoor += (1-(UpDown+1)/2)*Gap;
     zcoor = zpos+(zFLT3/2.+7+zFLT2/2); // Moves to the system of the centre of the modulus FLT2
     gMC->Gspos("FSTR",i, "FLT2", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
     ang  = ang/kRaddeg;
     zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)+UpDown*Gap*TMath::Tan(ang)-(zSenStrip/2)/TMath::Cos(ang);
     last = StripWidth*TMath::Cos(ang)/2;
     UpDown*=-1;
     i++; 
  } while (zpos-(StripWidth/2)*TMath::Cos(ang)>-t+zFLT1+7);

  // Plate  1
  zpos = -t+zFLT1+3.5;
  ang = atan(zpos/sqrt(2*t*t-zpos*zpos));
  Offset = StripWidth*TMath::Cos(ang)/2.;
  zpos -= Offset;
  nrot = 0;
  i=0;
  ycoor= -29./2.+Space+Gap/2;

 do {
     ang = atan(zpos/sqrt(2*t*t-zpos*zpos));
     ang = ang*kRaddeg;
     AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
     i++;
     zcoor = zpos+(zFLT1/2+zFLT2+zFLT3/2+7.*2.);
     gMC->Gspos("FSTR",i, "FLT1", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
     ang  = ang /kRaddeg;
     zpos = zpos - zSenStrip/TMath::Cos(ang);
     last = StripWidth*TMath::Cos(ang)/2.;
  }  while (zpos>-t+7.+last);

printf("#######################################################\n");
printf("     Distance from the bound of the FLT3: zFLT3- %f cm \n", t+zpos-(zSenStrip/2)/TMath::Cos(ang));
     ang = atan(zpos/sqrt(2*t*t-zpos*zpos));
     zpos = zpos - zSenStrip/TMath::Cos(ang);
printf("NEXT Distance from the bound of the FLT3: zFLT3- %f cm \n", t+zpos-(zSenStrip/2)/TMath::Cos(ang));
printf("#######################################################\n");

////////// Layers after detector /////////////////

// Honeycomb layer after (3cm)

  Float_t OverSpace = Space + 7.3;
///  StripWidth*TMath::Sin(ang) + 1.3;

  par[0] = -1;
  par[1] = 0.6;
  par[2] = -1;
  ycoor = -yFLT/2 + OverSpace + par[1];
  gMC->Gsvolu("FPE1", "BOX ", idtmed[503], par, 3); // Hony
  gMC->Gspos("FPE1", 0, "FLT1", 0., ycoor, 0., 0, "ONLY");
  gMC->Gsvolu("FPE2", "BOX ", idtmed[503], par, 3); // Hony
  gMC->Gspos("FPE2", 0, "FLT2", 0., ycoor, 0., 0, "ONLY");
  gMC->Gsvolu("FPE3", "BOX ", idtmed[503], par, 3); // Hony
  gMC->Gspos("FPE3", 0, "FLT3", 0., ycoor, 0., 0, "ONLY");

// Electronics (Cu) after
  ycoor += par[1];
  par[0] = -1;
  par[1] = 1.43*0.05 / 2.; // 5% of X0
  par[2] = -1;
  ycoor += par[1];
  gMC->Gsvolu("FEC1", "BOX ", idtmed[501], par, 3); // Cu
  gMC->Gspos("FEC1", 0, "FLT1", 0., ycoor, 0., 0, "ONLY");
  gMC->Gsvolu("FEC2", "BOX ", idtmed[501], par, 3); // Cu
  gMC->Gspos("FEC2", 0, "FLT2", 0., ycoor, 0., 0, "ONLY");
  gMC->Gsvolu("FEC3", "BOX ", idtmed[501], par, 3); // Cu
  gMC->Gspos("FEC3", 0, "FLT3", 0., ycoor, 0., 0, "ONLY");

// Cooling water after
  ycoor += par[1];
  par[0] = -1;
  par[1] = 36.1*0.02 / 2.; // 2% of X0
  par[2] = -1;
  ycoor += par[1];
  gMC->Gsvolu("FWA1", "BOX ", idtmed[515], par, 3); // Water
  gMC->Gspos("FWA1", 0, "FLT1", 0., ycoor, 0., 0, "ONLY");
  gMC->Gsvolu("FWA2", "BOX ", idtmed[515], par, 3); // Water
  gMC->Gspos("FWA2", 0, "FLT2", 0., ycoor, 0., 0, "ONLY");
  gMC->Gsvolu("FWA3", "BOX ", idtmed[515], par, 3); // Water
  gMC->Gspos("FWA3", 0, "FLT3", 0., ycoor, 0., 0, "ONLY");

//back plate honycomb (2cm)
  par[0] = -1;
  par[1] = 2 / 2.;
  par[2] = -1;
  ycoor = yFLT/2 - par[1];
  gMC->Gsvolu("FEG1", "BOX ", idtmed[503], par, 3); // Hony
  gMC->Gspos("FEG1", 0, "FLT1", 0., ycoor, 0., 0, "ONLY");
  gMC->Gsvolu("FEG2", "BOX ", idtmed[503], par, 3); // Hony
  gMC->Gspos("FEG2", 0, "FLT2", 0., ycoor, 0., 0, "ONLY");
  gMC->Gsvolu("FEG3", "BOX ", idtmed[503], par, 3); // Hony
  gMC->Gspos("FEG3", 0, "FLT3", 0., ycoor, 0., 0, "ONLY");
}

//_____________________________________________________________________________
void AliTOFv2::DrawModule()
{
  //
  // Draw a shaded view of the Time Of Flight version 1
  //
  // Set everything unseen
  gMC->Gsatt("*", "seen", -1);
  // 
  // Set ALIC mother transparent
  gMC->Gsatt("ALIC","SEEN",0);
  //
  // Set the volumes visible
  gMC->Gsatt("ALIC","SEEN",0);
  gMC->Gsatt("FBAR","SEEN",1);
  gMC->Gsatt("FTO1","SEEN",1);
  gMC->Gsatt("FTO2","SEEN",1);
  gMC->Gsatt("FTO3","SEEN",1);
  gMC->Gsatt("FBT1","SEEN",1);
  gMC->Gsatt("FBT2","SEEN",1);
  gMC->Gsatt("FBT3","SEEN",1);
  gMC->Gsatt("FDT1","SEEN",1);
  gMC->Gsatt("FDT2","SEEN",1);
  gMC->Gsatt("FDT3","SEEN",1);
  gMC->Gsatt("FLT1","SEEN",1);
  gMC->Gsatt("FLT2","SEEN",1);
  gMC->Gsatt("FLT3","SEEN",1);
  gMC->Gsatt("FPL1","SEEN",1);
  gMC->Gsatt("FPL2","SEEN",1);
  gMC->Gsatt("FPL3","SEEN",1);
  gMC->Gsatt("FLD1","SEEN",1);
  gMC->Gsatt("FLD2","SEEN",1);
  gMC->Gsatt("FLD3","SEEN",1);
  gMC->Gsatt("FLZ1","SEEN",1);
  gMC->Gsatt("FLZ2","SEEN",1);
  gMC->Gsatt("FLZ3","SEEN",1);
  gMC->Gsatt("FLX1","SEEN",1);
  gMC->Gsatt("FLX2","SEEN",1);
  gMC->Gsatt("FLX3","SEEN",1);
  gMC->Gsatt("FPA0","SEEN",1);
  //
  gMC->Gdopt("hide", "on");
  gMC->Gdopt("shad", "on");
  gMC->Gsatt("*", "fill", 7);
  gMC->SetClipBox(".");
  gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
  gMC->DefaultRange();
  gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
  gMC->Gdhead(1111, "Time Of Flight");
  gMC->Gdman(18, 4, "MAN");
  gMC->Gdopt("hide","off");
}

//_____________________________________________________________________________
void AliTOFv2::CreateMaterials()
{
  //
  // Define materials for the Time Of Flight
  //
  AliTOF::CreateMaterials();
}
 
//_____________________________________________________________________________
void AliTOFv2::Init()
{
  //
  // Initialise the detector after the geometry has been defined
  //
  printf("**************************************"
	 "  TOF  "
	 "**************************************\n");
  printf("\n     Version 2 of TOF initialing, "
	 "with openings for PHOS and RICH in symmetric frame\n\n");

  AliTOF::Init();

  //
  // Check that FRAME is there otherwise we have no place where to
  // put TOF
  AliModule* FRAME=gAlice->GetModule("FRAME");
  if(!FRAME) {
    Error("Ctor","TOF needs FRAME to be present\n");
    exit(1);
  } else 
    if(FRAME->IsVersion()!=1) {
      Error("Ctor","FRAME version 1 needed with this version of TOF\n");
      exit(1);
    }

  fIdFTO2=gMC->VolId("FTO2");
  fIdFTO3=gMC->VolId("FTO3");
  fIdFLT1=gMC->VolId("FLT1");
  fIdFLT2=gMC->VolId("FLT2");
  fIdFLT3=gMC->VolId("FLT3");
  printf("**************************************"
	 "  TOF  "
	 "**************************************\n");
}
 
//_____________________________________________________________________________
void AliTOFv2::StepManager()
{
  //
  // Procedure called at each step in the Time Of Flight
  //
  TLorentzVector mom, pos;
  Float_t hits[8];
  Int_t vol[3];
  Int_t copy, id, i;
  Int_t *idtmed = fIdtmed->GetArray()-499;
  if(gMC->GetMedium()==idtmed[514-1] && 
     gMC->IsTrackEntering() && gMC->TrackCharge()
     && gMC->CurrentVolID(copy)==fIdSens) {
    TClonesArray &lhits = *fHits;
    //
    // Record only charged tracks at entrance
    gMC->CurrentVolOffID(1,copy);
    vol[2]=copy;
    gMC->CurrentVolOffID(3,copy);
    vol[1]=copy;
    id=gMC->CurrentVolOffID(8,copy);
    vol[0]=copy;
    if(id==fIdFTO3) {
      vol[0]+=22;
      id=gMC->CurrentVolOffID(5,copy);
      if(id==fIdFLT3) vol[1]+=6;
    } else if (id==fIdFTO2) {
      vol[0]+=20;
      id=gMC->CurrentVolOffID(5,copy);
      if(id==fIdFLT2) vol[1]+=8;
    } else {
      id=gMC->CurrentVolOffID(5,copy);
      if(id==fIdFLT1) vol[1]+=14;
    }
    gMC->TrackPosition(pos);
    gMC->TrackMomentum(mom);
    //
    Double_t ptot=mom.Rho();
    Double_t norm=1/ptot;
    for(i=0;i<3;++i) {
      hits[i]=pos[i];
      hits[i+3]=mom[i]*norm;
    }
    hits[6]=ptot;
    hits[7]=pos[3];
    new(lhits[fNhits++]) AliTOFhit(fIshunt,gAlice->CurrentTrack(),vol,hits);
  }
}
Commit	Line	Data
4c039060	1	/**************************************************************************
	2	* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	3	* *
	4	* Author: The ALICE Off-line Project. *
	5	* Contributors are mentioned in the code where appropriate. *
	6	* *
	7	* Permission to use, copy, modify and distribute this software and its *
	8	* documentation strictly for non-commercial purposes is hereby granted *
	9	* without fee, provided that the above copyright notice appears in all *
	10	* copies and that both the copyright notice and this permission notice *
	11	* appear in the supporting documentation. The authors make no claims *
	12	* about the suitability of this software for any purpose. It is *
	13	* provided "as is" without express or implied warranty. *
	14	**************************************************************************/
	15
	16	/*
	17	$Log$
ab76897d	18	Revision 1.12 1999/10/22 08:04:14 fca
	19	Correct improper use of negative parameters
	20
d0a635a0	21	Revision 1.11 1999/10/16 19:30:05 fca
	22	Corrected Rotation Matrix and CVS log
	23
00e5f8d9	24	Revision 1.10 1999/10/15 15:35:20 fca
	25	New version for frame1099 with and without holes
	26
937fe4a4	27	Revision 1.9 1999/09/29 09:24:33 fca
	28	Introduction of the Copyright and cvs Log
	29
4c039060	30	*/
4c039060	31
fe4da5cc	32	///////////////////////////////////////////////////////////////////////////////
fe4da5cc	33	// //
937fe4a4	34	// Time Of Flight: design of C.Williams FCA //
937fe4a4	35	// This class contains the functions for version 1 of the Time Of Flight //
fe4da5cc	36	// detector. //
937fe4a4	37	//
	38	// VERSION WITH 5 MODULES AND TILTED STRIPS
	39	//
	40	// WITH HOLES FOR PHOS AND HMPID
	41	// INSIDE A FULL COVERAGE SPACE FRAME
	42	//
	43	//
	44	// Authors:
	45	//
	46	// Alessio Seganti
	47	// Domenico Vicinanza
	48	//
	49	// University of Salerno - Italy
	50	//
	51	//
	52	//
fe4da5cc	53	//Begin_Html
fe4da5cc	54	/*
3fe3a833	55	<img src="picts/AliTOFv2Class.gif">
fe4da5cc	56	*/
	57	//End_Html
	58	// //
	59	///////////////////////////////////////////////////////////////////////////////
	60
ab76897d	61	#include <stdlib.h>
ab76897d	62
fe4da5cc	63	#include "AliTOFv2.h"
fe4da5cc	64	#include "AliRun.h"
fe4da5cc	65	#include "AliConst.h"
	66
	67	ClassImp(AliTOFv2)
	68
	69	//_____________________________________________________________________________
151e057e	70	AliTOFv2::AliTOFv2()
fe4da5cc	71	{
	72	//
	73	// Default constructor
	74	//
	75	}
	76
	77	//_____________________________________________________________________________
	78	AliTOFv2::AliTOFv2(const char name, const char title)
	79	: AliTOF(name,title)
	80	{
	81	//
	82	// Standard constructor
	83	//
	84	}
	85
	86	//_____________________________________________________________________________
	87	void AliTOFv2::CreateGeometry()
	88	{
	89	//
3fe3a833	90	// Create geometry for Time Of Flight version 0
fe4da5cc	91	//
	92	//Begin_Html
	93	/*
3fe3a833	94	<img src="picts/AliTOFv2.gif">
fe4da5cc	95	*/
	96	//End_Html
	97	//
937fe4a4	98	// Creates common geometry
fe4da5cc	99	//
	100	AliTOF::CreateGeometry();
	101	}
	102
	103	//_____________________________________________________________________________
937fe4a4	104	void AliTOFv2::TOFpc(Float_t xtof, Float_t ytof, Float_t zlen1,
937fe4a4	105	Float_t zlen2, Float_t zlen3, Float_t ztof0)
fe4da5cc	106	{
	107	//
	108	// Definition of the Time Of Fligh Resistive Plate Chambers
937fe4a4	109	// xFLT, yFLT, zFLT - sizes of TOF modules (large)
3fe3a833	110
937fe4a4	111	Int_t idrotm[100];
	112	Int_t nrot = 0;
	113	Float_t ycoor, zcoor;
fe4da5cc	114	Float_t par[10];
fe4da5cc	115
ad51aeb0	116	Int_t *idtmed = fIdtmed->GetArray()-499;
937fe4a4	117
	118
	119	par[0] = xtof / 2.;
	120	par[1] = ytof / 2.;
	121	par[2] = zlen1 / 2.;
	122	gMC->Gsvolu("FTO1", "BOX ", idtmed[506], par, 3);
	123	par[2] = zlen2 / 2.;
	124	gMC->Gsvolu("FTO2", "BOX ", idtmed[506], par, 3);
	125	par[2] = zlen3 / 2.;
	126	gMC->Gsvolu("FTO3", "BOX ", idtmed[506], par, 3);
	127
	128
	129	// Position of modules
	130	Float_t zcor1 = ztof0 - zlen1/2;
	131	Float_t zcor2 = ztof0 - zlen1 - zlen2/2.;
	132	Float_t zcor3 = 0.;
	133
	134	AliMatrix(idrotm[0], 90., 0., 0., 0., 90, -90.);
	135	AliMatrix(idrotm[1], 90., 180., 0., 0., 90, 90.);
	136	gMC->Gspos("FTO1", 1, "BTO1", 0, zcor1, 0, idrotm[0], "ONLY");
	137	gMC->Gspos("FTO1", 2, "BTO1", 0, -zcor1, 0, idrotm[1], "ONLY");
	138	gMC->Gspos("FTO1", 1, "BTO2", 0, zcor1, 0, idrotm[0], "ONLY");
	139	gMC->Gspos("FTO1", 2, "BTO2", 0, -zcor1, 0, idrotm[1], "ONLY");
	140	gMC->Gspos("FTO1", 1, "BTO3", 0, zcor1, 0, idrotm[0], "ONLY");
	141	gMC->Gspos("FTO1", 2, "BTO3", 0, -zcor1, 0, idrotm[1], "ONLY");
	142
	143	gMC->Gspos("FTO2", 1, "BTO1", 0, zcor2, 0, idrotm[0], "ONLY");
	144	gMC->Gspos("FTO2", 2, "BTO1", 0, -zcor2, 0, idrotm[1], "ONLY");
	145	gMC->Gspos("FTO2", 1, "BTO2", 0, zcor2, 0, idrotm[0], "ONLY");
	146	gMC->Gspos("FTO2", 2, "BTO2", 0, -zcor2, 0, idrotm[1], "ONLY");
	147
	148	gMC->Gspos("FTO3", 0, "BTO1", 0, zcor3, 0, idrotm[0], "ONLY");
	149
	150	// Subtraction the distance to TOF module boundaries
	151
	152	Float_t db = 7.;
	153	Float_t xFLT, yFLT, zFLT1, zFLT2, zFLT3;
	154
	155	xFLT = xtof -(.5 +.5)*2;
	156	yFLT = ytof;
	157	zFLT1 = zlen1 - db;
	158	zFLT2 = zlen2 - db;
	159	zFLT3 = zlen3 - db;
	160
	161
	162	// Sizes of MRPC pads
	163
	164	Float_t yPad = 0.505;
fe4da5cc	165
937fe4a4	166	// Large not sensitive volumes with CO2
	167	par[0] = xFLT/2;
	168	par[1] = yFLT/2;
	169
	170	cout <<"*********************** TOF geometry ************************"<<endl;
	171
	172	par[2] = (zFLT1 / 2.);
	173	gMC->Gsvolu("FLT1", "BOX ", idtmed[506], par, 3); // CO2
	174	gMC->Gspos("FLT1", 0, "FTO1", 0., 0., 0., 0, "ONLY");
	175
	176	par[2] = (zFLT2 / 2.);
	177	gMC->Gsvolu("FLT2", "BOX ", idtmed[506], par, 3); // CO2
	178	gMC->Gspos("FLT2", 0, "FTO2", 0., 0., 0., 0, "ONLY");
	179
	180	par[2] = (zFLT3 / 2.);
	181	gMC->Gsvolu("FLT3", "BOX ", idtmed[506], par, 3); // CO2
	182	gMC->Gspos("FLT3", 0, "FTO3", 0., 0., 0., 0, "ONLY");
	183
	184	////////// Layers before detector ////////////////////
	185
	186	// Alluminium layer in front 1.0 mm thick at the beginning
	187	par[0] = -1;
	188	par[1] = 0.1;
	189	par[2] = -1;
	190	ycoor = -yFLT/2 + par[1];
	191	gMC->Gsvolu("FMY1", "BOX ", idtmed[508], par, 3); // Alluminium
	192	gMC->Gspos("FMY1", 0, "FLT1", 0., ycoor, 0., 0, "ONLY");
	193	gMC->Gsvolu("FMY2", "BOX ", idtmed[508], par, 3); // Alluminium
	194	gMC->Gspos("FMY2", 0, "FLT2", 0., ycoor, 0., 0, "ONLY");
	195	gMC->Gsvolu("FMY3", "BOX ", idtmed[508], par, 3); // Alluminium
	196	gMC->Gspos("FMY3", 0, "FLT3", 0., ycoor, 0., 0, "ONLY");
	197
	198	// Honeycomb layer (1cm of special polyethilene)
	199	ycoor = ycoor + par[1];
	200	par[0] = -1;
	201	par[1] = 0.5;
	202	par[2] = -1;
	203	ycoor = ycoor + par[1];
	204	gMC->Gsvolu("FPL1", "BOX ", idtmed[503], par, 3); // Hony
	205	gMC->Gspos("FPL1", 0, "FLT1", 0., ycoor, 0., 0, "ONLY");
	206	gMC->Gsvolu("FPL2", "BOX ", idtmed[503], par, 3); // Hony
	207	gMC->Gspos("FPL2", 0, "FLT2", 0., ycoor, 0., 0, "ONLY");
	208	gMC->Gsvolu("FPL3", "BOX ", idtmed[503], par, 3); // Hony
	209	gMC->Gspos("FPL3", 0, "FLT3", 0., ycoor, 0., 0, "ONLY");
	210
	211	///////////////// Detector itself //////////////////////
	212
	213	const Float_t StripWidth = 7.81;//cm
	214	const Float_t DeadBound = 1.;//cm non-sensitive between the pad edge and the boundary of the strip
	215	const Int_t nx = 40; // number of pads along x
	216	const Int_t nz = 2; // number of pads along z
	217	const Float_t Gap=4.; //cm distance between the strip axis
	218	const Float_t Space = 5.5; //cm distance from the front plate of the box
	219
	220	Float_t zSenStrip;
	221	zSenStrip = StripWidth-2*DeadBound;//cm
	222
d0a635a0	223	par[0] = xFLT/2;
937fe4a4	224	par[1] = yPad/2;
	225	par[2] = StripWidth/2.;
	226
	227	// Glass Layer of detector
	228	gMC->Gsvolu("FSTR","BOX",idtmed[514],par,3);
	229
	230	// Freon for non-sesitive boundaries
d0a635a0	231	par[0] = xFLT/2;
937fe4a4	232	par[1] = 0.110/2;
	233	par[2] = -1;
	234	gMC->Gsvolu("FNSF","BOX",idtmed[512],par,3);
	235	gMC->Gspos("FNSF",0,"FSTR",0.,0.,0.,0,"ONLY");
	236	// Mylar for non-sesitive boundaries
	237	par[1] = 0.025;
	238	gMC->Gsvolu("FMYI","BOX",idtmed[510],par,3);
	239	gMC->Gspos("FMYI",0,"FNSF",0.,0.,0.,0,"ONLY");
	240
	241	// Mylar for outer layers
	242	par[1] = 0.035/2;
	243	ycoor = -yPad/2.+par[1];
	244	gMC->Gsvolu("FMYX","BOX",idtmed[510],par,3);
	245	gMC->Gspos("FMYX",1,"FSTR",0.,ycoor,0.,0,"ONLY");
	246	gMC->Gspos("FMYX",2,"FSTR",0.,-ycoor,0.,0,"ONLY");
	247	ycoor += par[1];
	248
	249	// Graphyte layers
	250	par[1] = 0.003/2;
	251	ycoor += par[1];
	252	gMC->Gsvolu("FGRL","BOX",idtmed[502],par,3);
	253	gMC->Gspos("FGRL",1,"FSTR",0.,ycoor,0.,0,"ONLY");
	254	gMC->Gspos("FGRL",2,"FSTR",0.,-ycoor,0.,0,"ONLY");
	255
	256	// Freon sensitive layer
	257	par[0] = -1;
	258	par[1] = 0.110/2.;
	259	par[2] = zSenStrip/2.;
	260	gMC->Gsvolu("FCFC","BOX",idtmed[513],par,3);
	261	gMC->Gspos("FCFC",0,"FNSF",0.,0.,0.,0,"ONLY");
	262
	263	// Pad definition x & z
	264	gMC->Gsdvn("FLZ","FCFC", nz, 3);
	265	gMC->Gsdvn("FLX","FLZ" , nx, 1);
	266
	267	// MRPC pixel itself
	268	par[0] = -1;
	269	par[1] = -1;
	270	par[2] = -1;
	271	gMC->Gsvolu("FPAD", "BOX ", idtmed[513], par, 3);
	272	gMC->Gspos("FPAD", 0, "FLX", 0., 0., 0., 0, "ONLY");
	273
	274
	275	//// Positioning the Strips (FSTR) in the FLT volumes /////
	276
	277
	278	// 3 (Central) Plate
	279	Float_t t = zFLT1+zFLT2+zFLT3/2.+7.*2.5;//Half Width of Barrel
	280	Float_t zpos = 0;
	281	Float_t ang;
	282	Float_t Offset;
	283	Float_t last;
	284	nrot = 0;
	285	Int_t i=1,j=1;
	286	zcoor=0;
	287	Int_t UpDown=-1; // UpDown=-1 -> Upper strip, UpDown=+1 -> Lower strip
	288
	289	do{
	290	ang = atan(zcoor/t);
00e5f8d9	291	ang = ang*kRaddeg;
	292	AliMatrix (idrotm[nrot] ,90., 0.,90.-ang,90.,-ang,90.);
	293	AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90.,ang,90.);
937fe4a4	294	ycoor = -29./2.+ Space; //2 cm over front plate
	295	ycoor += (1-(UpDown+1)/2)*Gap;
	296	gMC->Gspos("FSTR",j,"FLT3",0.,ycoor,zcoor,idrotm[nrot],"ONLY");
	297	gMC->Gspos("FSTR",j+1,"FLT3",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
00e5f8d9	298	ang = ang/kRaddeg;
937fe4a4	299
	300	zcoor=zcoor-(zSenStrip/2)/TMath::Cos(ang)+UpDownGapTMath::Tan(ang)-(zSenStrip/2)/TMath::Cos(ang);
	301	UpDown*= -1; // Alternate strips
	302	i++;
	303	j+=2;
	304	} while (zcoor-(StripWidth/2)TMath::Cos(ang)>-t+zFLT1+zFLT2+72.5);
	305
	306	ycoor = -29./2.+ Space; //2 cm over front plate
	307
	308	// Plate 2
	309	zpos = -zFLT3/2-7;
	310	ang = atan(zpos/sqrt(2tt-zpos*zpos));
	311	Offset = StripWidth*TMath::Cos(ang)/2;
	312	zpos -= Offset;
	313	nrot = 0;
	314	i=1;
	315	// UpDown has not to be reinitialized, so that the arrangement of the strips can continue coherently
	316
	317	do {
	318	ang = atan(zpos/sqrt(2tt-zpos*zpos));
00e5f8d9	319	ang = ang*kRaddeg;
00e5f8d9	320	AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
937fe4a4	321	ycoor = -29./2.+ Space ; //2 cm over front plate
	322	ycoor += (1-(UpDown+1)/2)*Gap;
	323	zcoor = zpos+(zFLT3/2.+7+zFLT2/2); // Moves to the system of the centre of the modulus FLT2
	324	gMC->Gspos("FSTR",i, "FLT2", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
00e5f8d9	325	ang = ang/kRaddeg;
937fe4a4	326	zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)+UpDownGapTMath::Tan(ang)-(zSenStrip/2)/TMath::Cos(ang);
	327	last = StripWidth*TMath::Cos(ang)/2;
	328	UpDown*=-1;
	329	i++;
	330	} while (zpos-(StripWidth/2)*TMath::Cos(ang)>-t+zFLT1+7);
	331
	332	// Plate 1
	333	zpos = -t+zFLT1+3.5;
	334	ang = atan(zpos/sqrt(2tt-zpos*zpos));
	335	Offset = StripWidth*TMath::Cos(ang)/2.;
	336	zpos -= Offset;
	337	nrot = 0;
	338	i=0;
	339	ycoor= -29./2.+Space+Gap/2;
	340
	341	do {
	342	ang = atan(zpos/sqrt(2tt-zpos*zpos));
00e5f8d9	343	ang = ang*kRaddeg;
00e5f8d9	344	AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
937fe4a4	345	i++;
	346	zcoor = zpos+(zFLT1/2+zFLT2+zFLT3/2+7.*2.);
	347	gMC->Gspos("FSTR",i, "FLT1", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
00e5f8d9	348	ang = ang /kRaddeg;
937fe4a4	349	zpos = zpos - zSenStrip/TMath::Cos(ang);
	350	last = StripWidth*TMath::Cos(ang)/2.;
	351	} while (zpos>-t+7.+last);
	352
	353	printf("#######################################################\n");
00e5f8d9	354	printf(" Distance from the bound of the FLT3: zFLT3- %f cm \n", t+zpos-(zSenStrip/2)/TMath::Cos(ang));
937fe4a4	355	ang = atan(zpos/sqrt(2tt-zpos*zpos));
937fe4a4	356	zpos = zpos - zSenStrip/TMath::Cos(ang);
00e5f8d9	357	printf("NEXT Distance from the bound of the FLT3: zFLT3- %f cm \n", t+zpos-(zSenStrip/2)/TMath::Cos(ang));
937fe4a4	358	printf("#######################################################\n");
	359
	360	////////// Layers after detector /////////////////
	361
	362	// Honeycomb layer after (3cm)
	363
	364	Float_t OverSpace = Space + 7.3;
	365	/// StripWidth*TMath::Sin(ang) + 1.3;
	366
	367	par[0] = -1;
	368	par[1] = 0.6;
	369	par[2] = -1;
	370	ycoor = -yFLT/2 + OverSpace + par[1];
	371	gMC->Gsvolu("FPE1", "BOX ", idtmed[503], par, 3); // Hony
	372	gMC->Gspos("FPE1", 0, "FLT1", 0., ycoor, 0., 0, "ONLY");
	373	gMC->Gsvolu("FPE2", "BOX ", idtmed[503], par, 3); // Hony
	374	gMC->Gspos("FPE2", 0, "FLT2", 0., ycoor, 0., 0, "ONLY");
	375	gMC->Gsvolu("FPE3", "BOX ", idtmed[503], par, 3); // Hony
	376	gMC->Gspos("FPE3", 0, "FLT3", 0., ycoor, 0., 0, "ONLY");
	377
	378	// Electronics (Cu) after
	379	ycoor += par[1];
	380	par[0] = -1;
	381	par[1] = 1.43*0.05 / 2.; // 5% of X0
	382	par[2] = -1;
	383	ycoor += par[1];
3fe3a833	384	gMC->Gsvolu("FEC1", "BOX ", idtmed[501], par, 3); // Cu
937fe4a4	385	gMC->Gspos("FEC1", 0, "FLT1", 0., ycoor, 0., 0, "ONLY");
3fe3a833	386	gMC->Gsvolu("FEC2", "BOX ", idtmed[501], par, 3); // Cu
937fe4a4	387	gMC->Gspos("FEC2", 0, "FLT2", 0., ycoor, 0., 0, "ONLY");
3fe3a833	388	gMC->Gsvolu("FEC3", "BOX ", idtmed[501], par, 3); // Cu
937fe4a4	389	gMC->Gspos("FEC3", 0, "FLT3", 0., ycoor, 0., 0, "ONLY");
	390
	391	// Cooling water after
	392	ycoor += par[1];
	393	par[0] = -1;
	394	par[1] = 36.1*0.02 / 2.; // 2% of X0
	395	par[2] = -1;
	396	ycoor += par[1];
	397	gMC->Gsvolu("FWA1", "BOX ", idtmed[515], par, 3); // Water
	398	gMC->Gspos("FWA1", 0, "FLT1", 0., ycoor, 0., 0, "ONLY");
	399	gMC->Gsvolu("FWA2", "BOX ", idtmed[515], par, 3); // Water
	400	gMC->Gspos("FWA2", 0, "FLT2", 0., ycoor, 0., 0, "ONLY");
	401	gMC->Gsvolu("FWA3", "BOX ", idtmed[515], par, 3); // Water
	402	gMC->Gspos("FWA3", 0, "FLT3", 0., ycoor, 0., 0, "ONLY");
	403
	404	//back plate honycomb (2cm)
	405	par[0] = -1;
	406	par[1] = 2 / 2.;
	407	par[2] = -1;
	408	ycoor = yFLT/2 - par[1];
	409	gMC->Gsvolu("FEG1", "BOX ", idtmed[503], par, 3); // Hony
	410	gMC->Gspos("FEG1", 0, "FLT1", 0., ycoor, 0., 0, "ONLY");
	411	gMC->Gsvolu("FEG2", "BOX ", idtmed[503], par, 3); // Hony
	412	gMC->Gspos("FEG2", 0, "FLT2", 0., ycoor, 0., 0, "ONLY");
	413	gMC->Gsvolu("FEG3", "BOX ", idtmed[503], par, 3); // Hony
	414	gMC->Gspos("FEG3", 0, "FLT3", 0., ycoor, 0., 0, "ONLY");
fe4da5cc	415	}
	416
	417	//_____________________________________________________________________________
8f72dc0c	418	void AliTOFv2::DrawModule()
fe4da5cc	419	{
fe4da5cc	420	//
937fe4a4	421	// Draw a shaded view of the Time Of Flight version 1
fe4da5cc	422	//
fe4da5cc	423	// Set everything unseen
cfce8870	424	gMC->Gsatt("*", "seen", -1);
fe4da5cc	425	//
fe4da5cc	426	// Set ALIC mother transparent
cfce8870	427	gMC->Gsatt("ALIC","SEEN",0);
fe4da5cc	428	//
fe4da5cc	429	// Set the volumes visible
cfce8870	430	gMC->Gsatt("ALIC","SEEN",0);
937fe4a4	431	gMC->Gsatt("FBAR","SEEN",1);
	432	gMC->Gsatt("FTO1","SEEN",1);
	433	gMC->Gsatt("FTO2","SEEN",1);
	434	gMC->Gsatt("FTO3","SEEN",1);
	435	gMC->Gsatt("FBT1","SEEN",1);
	436	gMC->Gsatt("FBT2","SEEN",1);
	437	gMC->Gsatt("FBT3","SEEN",1);
	438	gMC->Gsatt("FDT1","SEEN",1);
	439	gMC->Gsatt("FDT2","SEEN",1);
	440	gMC->Gsatt("FDT3","SEEN",1);
	441	gMC->Gsatt("FLT1","SEEN",1);
	442	gMC->Gsatt("FLT2","SEEN",1);
	443	gMC->Gsatt("FLT3","SEEN",1);
	444	gMC->Gsatt("FPL1","SEEN",1);
	445	gMC->Gsatt("FPL2","SEEN",1);
	446	gMC->Gsatt("FPL3","SEEN",1);
	447	gMC->Gsatt("FLD1","SEEN",1);
	448	gMC->Gsatt("FLD2","SEEN",1);
	449	gMC->Gsatt("FLD3","SEEN",1);
	450	gMC->Gsatt("FLZ1","SEEN",1);
	451	gMC->Gsatt("FLZ2","SEEN",1);
	452	gMC->Gsatt("FLZ3","SEEN",1);
	453	gMC->Gsatt("FLX1","SEEN",1);
	454	gMC->Gsatt("FLX2","SEEN",1);
	455	gMC->Gsatt("FLX3","SEEN",1);
	456	gMC->Gsatt("FPA0","SEEN",1);
fe4da5cc	457	//
cfce8870	458	gMC->Gdopt("hide", "on");
	459	gMC->Gdopt("shad", "on");
	460	gMC->Gsatt("*", "fill", 7);
	461	gMC->SetClipBox(".");
	462	gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
	463	gMC->DefaultRange();
	464	gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
	465	gMC->Gdhead(1111, "Time Of Flight");
	466	gMC->Gdman(18, 4, "MAN");
	467	gMC->Gdopt("hide","off");
fe4da5cc	468	}
	469
	470	//_____________________________________________________________________________
	471	void AliTOFv2::CreateMaterials()
	472	{
	473	//
	474	// Define materials for the Time Of Flight
	475	//
	476	AliTOF::CreateMaterials();
	477	}
	478
	479	//_____________________________________________________________________________
	480	void AliTOFv2::Init()
	481	{
	482	//
	483	// Initialise the detector after the geometry has been defined
	484	//
ab76897d	485	printf("**************************************"
	486	" TOF "
	487	"**************************************\n");
	488	printf("\n Version 2 of TOF initialing, "
	489	"with openings for PHOS and RICH in symmetric frame\n\n");
	490
fe4da5cc	491	AliTOF::Init();
ab76897d	492
	493	//
	494	// Check that FRAME is there otherwise we have no place where to
	495	// put TOF
	496	AliModule* FRAME=gAlice->GetModule("FRAME");
	497	if(!FRAME) {
	498	Error("Ctor","TOF needs FRAME to be present\n");
	499	exit(1);
	500	} else
	501	if(FRAME->IsVersion()!=1) {
	502	Error("Ctor","FRAME version 1 needed with this version of TOF\n");
	503	exit(1);
	504	}
	505
cfce8870	506	fIdFTO2=gMC->VolId("FTO2");
	507	fIdFTO3=gMC->VolId("FTO3");
	508	fIdFLT1=gMC->VolId("FLT1");
	509	fIdFLT2=gMC->VolId("FLT2");
	510	fIdFLT3=gMC->VolId("FLT3");
ab76897d	511	printf("**************************************"
	512	" TOF "
	513	"**************************************\n");
fe4da5cc	514	}
	515
	516	//_____________________________________________________________________________
	517	void AliTOFv2::StepManager()
	518	{
	519	//
	520	// Procedure called at each step in the Time Of Flight
	521	//
3fe3a833	522	TLorentzVector mom, pos;
fe4da5cc	523	Float_t hits[8];
fe4da5cc	524	Int_t vol[3];
0a6d8768	525	Int_t copy, id, i;
ad51aeb0	526	Int_t *idtmed = fIdtmed->GetArray()-499;
3fe3a833	527	if(gMC->GetMedium()==idtmed[514-1] &&
0a6d8768	528	gMC->IsTrackEntering() && gMC->TrackCharge()
0a6d8768	529	&& gMC->CurrentVolID(copy)==fIdSens) {
fe4da5cc	530	TClonesArray &lhits = *fHits;
	531	//
	532	// Record only charged tracks at entrance
0a6d8768	533	gMC->CurrentVolOffID(1,copy);
fe4da5cc	534	vol[2]=copy;
0a6d8768	535	gMC->CurrentVolOffID(3,copy);
fe4da5cc	536	vol[1]=copy;
937fe4a4	537	id=gMC->CurrentVolOffID(8,copy);
fe4da5cc	538	vol[0]=copy;
	539	if(id==fIdFTO3) {
	540	vol[0]+=22;
937fe4a4	541	id=gMC->CurrentVolOffID(5,copy);
937fe4a4	542	if(id==fIdFLT3) vol[1]+=6;
fe4da5cc	543	} else if (id==fIdFTO2) {
fe4da5cc	544	vol[0]+=20;
937fe4a4	545	id=gMC->CurrentVolOffID(5,copy);
fe4da5cc	546	if(id==fIdFLT2) vol[1]+=8;
fe4da5cc	547	} else {
937fe4a4	548	id=gMC->CurrentVolOffID(5,copy);
fe4da5cc	549	if(id==fIdFLT1) vol[1]+=14;
fe4da5cc	550	}
0a6d8768	551	gMC->TrackPosition(pos);
0a6d8768	552	gMC->TrackMomentum(mom);
3fe3a833	553	//
0a6d8768	554	Double_t ptot=mom.Rho();
	555	Double_t norm=1/ptot;
	556	for(i=0;i<3;++i) {
	557	hits[i]=pos[i];
	558	hits[i+3]=mom[i]*norm;
	559	}
	560	hits[6]=ptot;
	561	hits[7]=pos[3];
fe4da5cc	562	new(lhits[fNhits++]) AliTOFhit(fIshunt,gAlice->CurrentTrack(),vol,hits);
	563	}
	564	}
937fe4a4	565