[u/mrichter/AliRoot.git] / TOF / AliTOFv0.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 1.14  1999/11/05 22:39:06  fca
New hits structure

Revision 1.13  1999/11/01 20:41:57  fca
Added protections against using the wrong version of FRAME

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 the 
//   SPACE FRAME WITH HOLES
//
//
//   Authors:
//  
//   Alessio Seganti
//   Domenico Vicinanza
//
//   University of Salerno - Italy
//
//
//Begin_Html
/*
<img src="picts/AliTOFv0Class.gif">
*/
//End_Html
//                                                                           //
///////////////////////////////////////////////////////////////////////////////

#include <iostream.h>
#include <stdlib.h>

#include "AliTOFv0.h"
#include "AliRun.h"
#include "AliConst.h"
 
ClassImp(AliTOFv0)
 
//_____________________________________________________________________________
AliTOFv0::AliTOFv0()
{
  //
  // Default constructor
  //
}
 
//_____________________________________________________________________________
AliTOFv0::AliTOFv0(const char *name, const char *title)
       : AliTOF(name,title)
{
  //
  // Standard constructor
  //
  //
  // 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()!=0) {
      Error("Ctor","FRAME version 0 needed with this version of TOF\n");
      exit(1);
    }

}
 
//_____________________________________________________________________________
void AliTOFv0::CreateGeometry()
{
  //
  // Create geometry for Time Of Flight version 0
  //
  //Begin_Html
  /*
    <img src="picts/AliTOFv0.gif">
  */
  //End_Html
  //
  // Creates common geometry
  //
  AliTOF::CreateGeometry();
}
 
//_____________________________________________________________________________
void AliTOFv0::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)
  
  Float_t  ycoor;
  Float_t par[10];
  Int_t idrotm[100];
  Int_t nrot = 0;
  
  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);


// Positioning of modules

   Float_t zcoor;

   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");
   zcoor = (zlen1/2.);
   gMC->Gspos("FTO1", 1, "BTO2", 0,  zcoor, 0, idrotm[0], "ONLY");
   zcoor = 0.;
   gMC->Gspos("FTO1", 1, "BTO3", 0,  zcoor, 0, idrotm[0], "ONLY");
   
   gMC->Gspos("FTO2", 1, "BTO1", 0,  zcor2, 0, idrotm[0], "ONLY");
   gMC->Gspos("FTO2", 2, "BTO1", 0, -zcor2, 0, idrotm[1], "ONLY");
   zcoor = -zlen2/2.;
   gMC->Gspos("FTO2", 0, "BTO2", 0,  zcoor, 0, idrotm[0], "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); 

////  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 = -14.5+ 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: %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: %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 AliTOFv0::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 AliTOFv0::CreateMaterials()
{
  //
  // Define materials for the Time Of Flight
  //
  AliTOF::CreateMaterials();
}
 
//_____________________________________________________________________________
void AliTOFv0::Init()
{
  //
  // Initialise the detector after the geometry has been defined
  //
  printf("**************************************"
	 "  TOF  "
	 "**************************************\n");
  printf("\n     Version 0 of TOF initialing, "
	 "with openings for PHOS and RICH\n\n");

  AliTOF::Init();

  fIdFTO2=gMC->VolId("FTO2");
  fIdFTO3=gMC->VolId("FTO3");
  fIdFLT1=gMC->VolId("FLT1");
  fIdFLT2=gMC->VolId("FLT2");
  fIdFLT3=gMC->VolId("FLT3");

  printf("**************************************"
	 "  TOF  "
	 "**************************************\n");
}
 
//_____________________________________________________________________________
void AliTOFv0::StepManager()
{
  //
  // Procedure called at each step in the Time Of Flight
  //
  TLorentzVector mom, pos;
  Float_t hits[8],rho,phi,phid,z;
  Int_t sector, plate, pad_x, pad_z, strip;
  Int_t copy, pad_z_id, pad_x_id, strip_id, i;
  Int_t *idtmed = fIdtmed->GetArray()-499;
  
  
  if(gMC->GetMedium()==idtmed[513] && 
     gMC->IsTrackEntering() && gMC->TrackCharge()
     && gMC->CurrentVolID(copy)==fIdSens) 
  {
    TClonesArray &lhits = *fHits;
    
    //_________getting information about hit volumes_____________
    
    pad_z_id=gMC->CurrentVolOffID(2,copy);
    pad_z=copy;  
    
    pad_x_id=gMC->CurrentVolOffID(1,copy);
    pad_x=copy;  
    
    strip_id=gMC->CurrentVolOffID(5,copy);
    strip=copy;  

    pad_z = (strip-1)*2+pad_z;

    gMC->TrackPosition(pos);
    gMC->TrackMomentum(mom);

    rho = sqrt(pos[0]*pos[0]+pos[1]*pos[1]);
    phi = TMath::ACos(pos[0]/rho);
    Float_t as = TMath::ASin(pos[1]/rho);
    if (as<0) phi = 2*3.141592654-phi;

    z = pos[2];
   
    if (z<=  62. && z>=-62.) plate = 3;
    if (z<= 216. && z>62.)   plate = 4;
    if (z>=-216. && z<-62.)  plate = 2;
    if (z>216.)  plate = 5;
    if (z<-216.) plate = 1;

    phid = phi*kRaddeg;
    sector = Int_t (phid/20.);
    sector++;

    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(),sector, plate, pad_x, pad_z, 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	$Log$
da39da0c	18	Revision 1.14 1999/11/05 22:39:06 fca
	19	New hits structure
	20
826b71ec	21	Revision 1.13 1999/11/01 20:41:57 fca
	22	Added protections against using the wrong version of FRAME
	23
ab76897d	24	Revision 1.12 1999/10/22 08:04:14 fca
	25	Correct improper use of negative parameters
	26
d0a635a0	27	Revision 1.11 1999/10/16 19:30:05 fca
	28	Corrected Rotation Matrix and CVS log
	29
00e5f8d9	30	Revision 1.10 1999/10/15 15:35:20 fca
	31	New version for frame1099 with and without holes
	32
937fe4a4	33	Revision 1.9 1999/09/29 09:24:33 fca
	34	Introduction of the Copyright and cvs Log
	35
4c039060	36	*/
4c039060	37
fe4da5cc	38	///////////////////////////////////////////////////////////////////////////////
fe4da5cc	39	// //
937fe4a4	40	// Time Of Flight: design of C.Williams FCA //
937fe4a4	41	// This class contains the functions for version 1 of the Time Of Flight //
fe4da5cc	42	// detector. //
937fe4a4	43	//
	44	// VERSION WITH 5 MODULES AND TILTED STRIPS
	45	//
	46	// WITH HOLES FOR PHOS AND HMPID inside the
	47	// SPACE FRAME WITH HOLES
	48	//
	49	//
	50	// Authors:
	51	//
	52	// Alessio Seganti
	53	// Domenico Vicinanza
	54	//
	55	// University of Salerno - Italy
	56	//
	57	//
fe4da5cc	58	//Begin_Html
fe4da5cc	59	/*
1439f98e	60	<img src="picts/AliTOFv0Class.gif">
fe4da5cc	61	*/
	62	//End_Html
	63	// //
	64	///////////////////////////////////////////////////////////////////////////////
	65
826b71ec	66	#include <iostream.h>
ab76897d	67	#include <stdlib.h>
ab76897d	68
fe4da5cc	69	#include "AliTOFv0.h"
fe4da5cc	70	#include "AliRun.h"
fe4da5cc	71	#include "AliConst.h"
3fe3a833	72
fe4da5cc	73	ClassImp(AliTOFv0)
	74
	75	//_____________________________________________________________________________
151e057e	76	AliTOFv0::AliTOFv0()
fe4da5cc	77	{
	78	//
	79	// Default constructor
	80	//
	81	}
	82
	83	//_____________________________________________________________________________
	84	AliTOFv0::AliTOFv0(const char name, const char title)
	85	: AliTOF(name,title)
	86	{
	87	//
3fe3a833	88	// Standard constructor
fe4da5cc	89	//
da39da0c	90	//
	91	// Check that FRAME is there otherwise we have no place where to
	92	// put TOF
	93	AliModule* FRAME=gAlice->GetModule("FRAME");
	94	if(!FRAME) {
	95	Error("Ctor","TOF needs FRAME to be present\n");
	96	exit(1);
	97	} else
	98	if(FRAME->IsVersion()!=0) {
	99	Error("Ctor","FRAME version 0 needed with this version of TOF\n");
	100	exit(1);
	101	}
	102
fe4da5cc	103	}
	104
	105	//_____________________________________________________________________________
	106	void AliTOFv0::CreateGeometry()
	107	{
	108	//
3fe3a833	109	// Create geometry for Time Of Flight version 0
3fe3a833	110	//
fe4da5cc	111	//Begin_Html
fe4da5cc	112	/*
1439f98e	113	<img src="picts/AliTOFv0.gif">
fe4da5cc	114	*/
	115	//End_Html
	116	//
937fe4a4	117	// Creates common geometry
fe4da5cc	118	//
3fe3a833	119	AliTOF::CreateGeometry();
fe4da5cc	120	}
	121
	122	//_____________________________________________________________________________
937fe4a4	123	void AliTOFv0::TOFpc(Float_t xtof, Float_t ytof, Float_t zlen1,
937fe4a4	124	Float_t zlen2, Float_t zlen3, Float_t ztof0)
fe4da5cc	125	{
fe4da5cc	126	//
3fe3a833	127	// Definition of the Time Of Fligh Resistive Plate Chambers
937fe4a4	128	// xFLT, yFLT, zFLT - sizes of TOF modules (large)
3fe3a833	129
3fe3a833	130	Float_t ycoor;
3fe3a833	131	Float_t par[10];
937fe4a4	132	Int_t idrotm[100];
937fe4a4	133	Int_t nrot = 0;
3fe3a833	134
3fe3a833	135	Int_t *idtmed = fIdtmed->GetArray()-499;
937fe4a4	136
	137
	138	par[0] = xtof / 2.;
	139	par[1] = ytof / 2.;
	140	par[2] = zlen1 / 2.;
	141	gMC->Gsvolu("FTO1", "BOX ", idtmed[506], par, 3);
	142	par[2] = zlen2 / 2.;
	143	gMC->Gsvolu("FTO2", "BOX ", idtmed[506], par, 3);
	144	par[2] = zlen3 / 2.;
	145	gMC->Gsvolu("FTO3", "BOX ", idtmed[506], par, 3);
	146
	147
	148	// Positioning of modules
	149
	150	Float_t zcoor;
	151
	152	Float_t zcor1 = ztof0 - zlen1/2;
	153	Float_t zcor2 = ztof0 - zlen1 - zlen2/2.;
	154	Float_t zcor3 = 0.;
	155
	156	AliMatrix(idrotm[0], 90., 0., 0., 0., 90, -90.);
	157	AliMatrix(idrotm[1], 90., 180., 0., 0., 90, 90.);
	158	gMC->Gspos("FTO1", 1, "BTO1", 0, zcor1, 0, idrotm[0], "ONLY");
	159	gMC->Gspos("FTO1", 2, "BTO1", 0, -zcor1, 0, idrotm[1], "ONLY");
	160	zcoor = (zlen1/2.);
	161	gMC->Gspos("FTO1", 1, "BTO2", 0, zcoor, 0, idrotm[0], "ONLY");
	162	zcoor = 0.;
	163	gMC->Gspos("FTO1", 1, "BTO3", 0, zcoor, 0, idrotm[0], "ONLY");
	164
	165	gMC->Gspos("FTO2", 1, "BTO1", 0, zcor2, 0, idrotm[0], "ONLY");
	166	gMC->Gspos("FTO2", 2, "BTO1", 0, -zcor2, 0, idrotm[1], "ONLY");
	167	zcoor = -zlen2/2.;
	168	gMC->Gspos("FTO2", 0, "BTO2", 0, zcoor, 0, idrotm[0], "ONLY");
	169
	170	gMC->Gspos("FTO3", 0, "BTO1", 0, zcor3, 0, idrotm[0], "ONLY");
	171
	172	// Subtraction the distance to TOF module boundaries
	173
	174	Float_t db = 7.;
	175	Float_t xFLT, yFLT, zFLT1, zFLT2, zFLT3;
	176
	177	xFLT = xtof -(.5 +.5)*2;
	178	yFLT = ytof;
	179	zFLT1 = zlen1 - db;
	180	zFLT2 = zlen2 - db;
	181	zFLT3 = zlen3 - db;
	182
	183	// Sizes of MRPC pads
	184
	185	Float_t yPad = 0.505;
3fe3a833	186
937fe4a4	187	// Large not sensitive volumes with CO2
	188	par[0] = xFLT/2;
	189	par[1] = yFLT/2;
	190
3fe3a833	191	cout <<"*********************** TOF geometry ************************"<<endl;
937fe4a4	192
937fe4a4	193	par[2] = (zFLT1 / 2.);
3fe3a833	194	gMC->Gsvolu("FLT1", "BOX ", idtmed[506], par, 3); // CO2
937fe4a4	195	gMC->Gspos("FLT1", 0, "FTO1", 0., 0., 0., 0, "ONLY");
	196
	197	par[2] = (zFLT2 / 2.);
3fe3a833	198	gMC->Gsvolu("FLT2", "BOX ", idtmed[506], par, 3); // CO2
937fe4a4	199	gMC->Gspos("FLT2", 0, "FTO2", 0., 0., 0., 0, "ONLY");
	200
	201	par[2] = (zFLT3 / 2.);
3fe3a833	202	gMC->Gsvolu("FLT3", "BOX ", idtmed[506], par, 3); // CO2
937fe4a4	203	gMC->Gspos("FLT3", 0, "FTO3", 0., 0., 0., 0, "ONLY");
937fe4a4	204
3fe3a833	205	////////// Layers before detector ////////////////////
937fe4a4	206
937fe4a4	207	// Alluminium layer in front 1.0 mm thick at the beginning
3fe3a833	208	par[0] = -1;
937fe4a4	209	par[1] = 0.1;
3fe3a833	210	par[2] = -1;
937fe4a4	211	ycoor = -yFLT/2 + par[1];
937fe4a4	212	gMC->Gsvolu("FMY1", "BOX ", idtmed[508], par, 3); // Alluminium
3fe3a833	213	gMC->Gspos("FMY1", 0, "FLT1", 0., ycoor, 0., 0, "ONLY");
937fe4a4	214	gMC->Gsvolu("FMY2", "BOX ", idtmed[508], par, 3); // Alluminium
3fe3a833	215	gMC->Gspos("FMY2", 0, "FLT2", 0., ycoor, 0., 0, "ONLY");
937fe4a4	216	gMC->Gsvolu("FMY3", "BOX ", idtmed[508], par, 3); // Alluminium
3fe3a833	217	gMC->Gspos("FMY3", 0, "FLT3", 0., ycoor, 0., 0, "ONLY");
937fe4a4	218
937fe4a4	219	// Honeycomb layer (1cm of special polyethilene)
3fe3a833	220	ycoor = ycoor + par[1];
3fe3a833	221	par[0] = -1;
937fe4a4	222	par[1] = 0.5;
3fe3a833	223	par[2] = -1;
	224	ycoor = ycoor + par[1];
	225	gMC->Gsvolu("FPL1", "BOX ", idtmed[503], par, 3); // Hony
	226	gMC->Gspos("FPL1", 0, "FLT1", 0., ycoor, 0., 0, "ONLY");
	227	gMC->Gsvolu("FPL2", "BOX ", idtmed[503], par, 3); // Hony
	228	gMC->Gspos("FPL2", 0, "FLT2", 0., ycoor, 0., 0, "ONLY");
	229	gMC->Gsvolu("FPL3", "BOX ", idtmed[503], par, 3); // Hony
	230	gMC->Gspos("FPL3", 0, "FLT3", 0., ycoor, 0., 0, "ONLY");
937fe4a4	231
3fe3a833	232	///////////////// Detector itself //////////////////////
937fe4a4	233
	234	const Float_t StripWidth = 7.81;//cm
	235	const Float_t DeadBound = 1.;//cm non-sensitive between the pad edge and the boundary of the strip
	236	const Int_t nx = 40; // number of pads along x
	237	const Int_t nz = 2; // number of pads along z
	238	const Float_t Gap=4.; //cm distance between the strip axis
	239	const Float_t Space = 5.5; //cm distance from the front plate of the box
	240
	241	Float_t zSenStrip;
	242	zSenStrip = StripWidth-2*DeadBound;//cm
	243
826b71ec	244	par[0] = xFLT/2;
937fe4a4	245	par[1] = yPad/2;
	246	par[2] = StripWidth/2.;
	247
	248	// Glass Layer of detector
	249	gMC->Gsvolu("FSTR","BOX",idtmed[514],par,3);
	250
	251	// Freon for non-sesitive boundaries
826b71ec	252	par[0] = xFLT/2;
937fe4a4	253	par[1] = 0.110/2;
3fe3a833	254	par[2] = -1;
937fe4a4	255	gMC->Gsvolu("FNSF","BOX",idtmed[512],par,3);
	256	gMC->Gspos("FNSF",0,"FSTR",0.,0.,0.,0,"ONLY");
	257	// Mylar for non-sesitive boundaries
	258	par[1] = 0.025;
	259	gMC->Gsvolu("FMYI","BOX",idtmed[510],par,3);
	260	gMC->Gspos("FMYI",0,"FNSF",0.,0.,0.,0,"ONLY");
	261
	262	// Mylar for outer layers
	263	par[1] = 0.035/2;
	264	ycoor = -yPad/2.+par[1];
	265	gMC->Gsvolu("FMYX","BOX",idtmed[510],par,3);
	266	gMC->Gspos("FMYX",1,"FSTR",0.,ycoor,0.,0,"ONLY");
	267	gMC->Gspos("FMYX",2,"FSTR",0.,-ycoor,0.,0,"ONLY");
	268	ycoor += par[1];
	269
	270	// Graphyte layers
	271	par[1] = 0.003/2;
	272	ycoor += par[1];
	273	gMC->Gsvolu("FGRL","BOX",idtmed[502],par,3);
	274	gMC->Gspos("FGRL",1,"FSTR",0.,ycoor,0.,0,"ONLY");
	275	gMC->Gspos("FGRL",2,"FSTR",0.,-ycoor,0.,0,"ONLY");
	276
	277	// Freon sensitive layer
826b71ec	278	par[0] = -1;
937fe4a4	279	par[1] = 0.110/2.;
	280	par[2] = zSenStrip/2.;
	281	gMC->Gsvolu("FCFC","BOX",idtmed[513],par,3);
	282	gMC->Gspos("FCFC",0,"FNSF",0.,0.,0.,0,"ONLY");
	283
	284	// Pad definition x & z
	285	gMC->Gsdvn("FLZ","FCFC", nz, 3);
	286	gMC->Gsdvn("FLX","FLZ" , nx, 1);
	287
937fe4a4	288	//// Positioning the Strips (FSTR) in the FLT volumes /////
937fe4a4	289
826b71ec	290
937fe4a4	291	// 3 (Central) Plate
	292	Float_t t = zFLT1+zFLT2+zFLT3/2.+7.*2.5;//Half Width of Barrel
	293	Float_t zpos = 0;
	294	Float_t ang;
	295	Float_t Offset;
	296	Float_t last;
	297	nrot = 0;
	298	Int_t i=1,j=1;
	299	zcoor=0;
	300	Int_t UpDown=-1; // UpDown=-1 -> Upper strip, UpDown=+1 -> Lower strip
	301
	302	do{
	303	ang = atan(zcoor/t);
826b71ec	304	ang = ang * kRaddeg;
	305	AliMatrix (idrotm[nrot], 90., 0.,90.-ang,90.,-ang, 90.);
	306	AliMatrix (idrotm[nrot+1],90.,180.,90.+ang,90.,ang, 90.);
937fe4a4	307	ycoor = -14.5+ Space; //2 cm over front plate
	308	ycoor += (1-(UpDown+1)/2)*Gap;
	309	gMC->Gspos("FSTR",j ,"FLT3",0.,ycoor, zcoor,idrotm[nrot], "ONLY");
	310	gMC->Gspos("FSTR",j+1,"FLT3",0.,ycoor,-zcoor,idrotm[nrot+1],"ONLY");
826b71ec	311	ang = ang / kRaddeg;
937fe4a4	312
	313	zcoor=zcoor-(zSenStrip/2)/TMath::Cos(ang)+UpDownGapTMath::Tan(ang)-(zSenStrip/2)/TMath::Cos(ang);
	314	UpDown*= -1; // Alternate strips
	315	i++;
	316	j+=2;
	317	} while (zcoor-(StripWidth/2)TMath::Cos(ang)>-t+zFLT1+zFLT2+72.5);
	318
	319	ycoor = -29./2.+ Space; //2 cm over front plate
	320
	321	// Plate 2
	322	zpos = -zFLT3/2-7.;
	323	ang = atan(zpos/sqrt(2tt-zpos*zpos));
	324	Offset = StripWidth*TMath::Cos(ang)/2;
	325	zpos -= Offset;
	326	nrot = 0;
	327	i=1;
	328	// UpDown has not to be reinitialized, so that the arrangement of the strips can continue coherently
	329
	330	do {
	331	ang = atan(zpos/sqrt(2tt-zpos*zpos));
826b71ec	332	ang = ang * kRaddeg;
826b71ec	333	AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
937fe4a4	334	ycoor = -29./2.+ Space ; //2 cm over front plate
	335	ycoor += (1-(UpDown+1)/2)*Gap;
	336	zcoor = zpos+(zFLT3/2.+7+zFLT2/2); // Moves to the system of the centre of the modulus FLT2
	337	gMC->Gspos("FSTR",i, "FLT2", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
826b71ec	338	ang = ang / kRaddeg;
937fe4a4	339	zpos = zpos - (zSenStrip/2)/TMath::Cos(ang)+UpDownGapTMath::Tan(ang)-(zSenStrip/2)/TMath::Cos(ang);
	340	last = StripWidth*TMath::Cos(ang)/2;
	341	UpDown*=-1;
	342	i++;
	343	} while (zpos-(StripWidth/2)*TMath::Cos(ang)>-t+zFLT1+7);
	344
	345	// Plate 1
	346	zpos = -t+zFLT1+3.5;
	347	ang = atan(zpos/sqrt(2tt-zpos*zpos));
	348	Offset = StripWidth*TMath::Cos(ang)/2.;
	349	zpos -= Offset;
	350	nrot = 0;
	351	i=0;
	352	ycoor= -29./2.+Space+Gap/2;
	353
	354	do {
	355	ang = atan(zpos/sqrt(2tt-zpos*zpos));
826b71ec	356	ang = ang * kRaddeg;
826b71ec	357	AliMatrix (idrotm[nrot], 90., 0., 90.-ang,90.,ang, 270.);
937fe4a4	358	i++;
	359	zcoor = zpos+(zFLT1/2+zFLT2+zFLT3/2+7.*2.);
	360	gMC->Gspos("FSTR",i, "FLT1", 0., ycoor, zcoor,idrotm[nrot], "ONLY");
826b71ec	361	ang = ang / kRaddeg;
937fe4a4	362	zpos = zpos - zSenStrip/TMath::Cos(ang);
	363	last = StripWidth*TMath::Cos(ang)/2.;
	364	} while (zpos>-t+7.+last);
	365
	366	printf("#######################################################\n");
d0a635a0	367	printf(" Distance from the bound of the FLT3: %f cm \n", t+zpos-(zSenStrip/2)/TMath::Cos(ang));
937fe4a4	368	ang = atan(zpos/sqrt(2tt-zpos*zpos));
937fe4a4	369	zpos = zpos - zSenStrip/TMath::Cos(ang);
d0a635a0	370	printf("NEXT Distance from the bound of the FLT3: %f cm \n", t+zpos-(zSenStrip/2)/TMath::Cos(ang));
937fe4a4	371	printf("#######################################################\n");
	372
	373	////////// Layers after detector /////////////////
	374
	375	// Honeycomb layer after (3cm)
	376
	377	Float_t OverSpace = Space + 7.3;
	378	/// StripWidth*TMath::Sin(ang) + 1.3;
	379
	380	par[0] = -1;
	381	par[1] = 0.6;
3fe3a833	382	par[2] = -1;
937fe4a4	383	ycoor = -yFLT/2 + OverSpace + par[1];
3fe3a833	384	gMC->Gsvolu("FPE1", "BOX ", idtmed[503], par, 3); // Hony
	385	gMC->Gspos("FPE1", 0, "FLT1", 0., ycoor, 0., 0, "ONLY");
	386	gMC->Gsvolu("FPE2", "BOX ", idtmed[503], par, 3); // Hony
	387	gMC->Gspos("FPE2", 0, "FLT2", 0., ycoor, 0., 0, "ONLY");
	388	gMC->Gsvolu("FPE3", "BOX ", idtmed[503], par, 3); // Hony
	389	gMC->Gspos("FPE3", 0, "FLT3", 0., ycoor, 0., 0, "ONLY");
937fe4a4	390
	391	// Electronics (Cu) after
	392	ycoor += par[1];
3fe3a833	393	par[0] = -1;
	394	par[1] = 1.43*0.05 / 2.; // 5% of X0
	395	par[2] = -1;
937fe4a4	396	ycoor += par[1];
3fe3a833	397	gMC->Gsvolu("FEC1", "BOX ", idtmed[501], par, 3); // Cu
	398	gMC->Gspos("FEC1", 0, "FLT1", 0., ycoor, 0., 0, "ONLY");
	399	gMC->Gsvolu("FEC2", "BOX ", idtmed[501], par, 3); // Cu
	400	gMC->Gspos("FEC2", 0, "FLT2", 0., ycoor, 0., 0, "ONLY");
	401	gMC->Gsvolu("FEC3", "BOX ", idtmed[501], par, 3); // Cu
	402	gMC->Gspos("FEC3", 0, "FLT3", 0., ycoor, 0., 0, "ONLY");
937fe4a4	403
	404	// Cooling water after
	405	ycoor += par[1];
3fe3a833	406	par[0] = -1;
	407	par[1] = 36.1*0.02 / 2.; // 2% of X0
	408	par[2] = -1;
937fe4a4	409	ycoor += par[1];
3fe3a833	410	gMC->Gsvolu("FWA1", "BOX ", idtmed[515], par, 3); // Water
	411	gMC->Gspos("FWA1", 0, "FLT1", 0., ycoor, 0., 0, "ONLY");
	412	gMC->Gsvolu("FWA2", "BOX ", idtmed[515], par, 3); // Water
	413	gMC->Gspos("FWA2", 0, "FLT2", 0., ycoor, 0., 0, "ONLY");
	414	gMC->Gsvolu("FWA3", "BOX ", idtmed[515], par, 3); // Water
	415	gMC->Gspos("FWA3", 0, "FLT3", 0., ycoor, 0., 0, "ONLY");
937fe4a4	416
937fe4a4	417	//back plate honycomb (2cm)
3fe3a833	418	par[0] = -1;
	419	par[1] = 2 / 2.;
	420	par[2] = -1;
937fe4a4	421	ycoor = yFLT/2 - par[1];
3fe3a833	422	gMC->Gsvolu("FEG1", "BOX ", idtmed[503], par, 3); // Hony
	423	gMC->Gspos("FEG1", 0, "FLT1", 0., ycoor, 0., 0, "ONLY");
	424	gMC->Gsvolu("FEG2", "BOX ", idtmed[503], par, 3); // Hony
	425	gMC->Gspos("FEG2", 0, "FLT2", 0., ycoor, 0., 0, "ONLY");
	426	gMC->Gsvolu("FEG3", "BOX ", idtmed[503], par, 3); // Hony
	427	gMC->Gspos("FEG3", 0, "FLT3", 0., ycoor, 0., 0, "ONLY");
	428	}
fe4da5cc	429
3fe3a833	430	//_____________________________________________________________________________
	431	void AliTOFv0::DrawModule()
	432	{
	433	//
937fe4a4	434	// Draw a shaded view of the Time Of Flight version 1
3fe3a833	435	//
fe4da5cc	436	// Set everything unseen
cfce8870	437	gMC->Gsatt("*", "seen", -1);
fe4da5cc	438	//
fe4da5cc	439	// Set ALIC mother transparent
cfce8870	440	gMC->Gsatt("ALIC","SEEN",0);
fe4da5cc	441	//
fe4da5cc	442	// Set the volumes visible
3fe3a833	443	gMC->Gsatt("ALIC","SEEN",0);
	444	gMC->Gsatt("FBAR","SEEN",1);
	445	gMC->Gsatt("FTO1","SEEN",1);
	446	gMC->Gsatt("FTO2","SEEN",1);
	447	gMC->Gsatt("FTO3","SEEN",1);
cfce8870	448	gMC->Gsatt("FBT1","SEEN",1);
	449	gMC->Gsatt("FBT2","SEEN",1);
	450	gMC->Gsatt("FBT3","SEEN",1);
3fe3a833	451	gMC->Gsatt("FDT1","SEEN",1);
	452	gMC->Gsatt("FDT2","SEEN",1);
	453	gMC->Gsatt("FDT3","SEEN",1);
	454	gMC->Gsatt("FLT1","SEEN",1);
	455	gMC->Gsatt("FLT2","SEEN",1);
	456	gMC->Gsatt("FLT3","SEEN",1);
937fe4a4	457	gMC->Gsatt("FPL1","SEEN",1);
	458	gMC->Gsatt("FPL2","SEEN",1);
	459	gMC->Gsatt("FPL3","SEEN",1);
	460	gMC->Gsatt("FLD1","SEEN",1);
	461	gMC->Gsatt("FLD2","SEEN",1);
	462	gMC->Gsatt("FLD3","SEEN",1);
	463	gMC->Gsatt("FLZ1","SEEN",1);
	464	gMC->Gsatt("FLZ2","SEEN",1);
	465	gMC->Gsatt("FLZ3","SEEN",1);
	466	gMC->Gsatt("FLX1","SEEN",1);
	467	gMC->Gsatt("FLX2","SEEN",1);
	468	gMC->Gsatt("FLX3","SEEN",1);
	469	gMC->Gsatt("FPA0","SEEN",1);
cfce8870	470	//
	471	gMC->Gdopt("hide", "on");
	472	gMC->Gdopt("shad", "on");
	473	gMC->Gsatt("*", "fill", 7);
cfce8870	474	gMC->SetClipBox(".");
	475	gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
	476	gMC->DefaultRange();
	477	gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
	478	gMC->Gdhead(1111, "Time Of Flight");
	479	gMC->Gdman(18, 4, "MAN");
	480	gMC->Gdopt("hide","off");
fe4da5cc	481	}
	482
	483	//_____________________________________________________________________________
	484	void AliTOFv0::CreateMaterials()
	485	{
	486	//
	487	// Define materials for the Time Of Flight
	488	//
	489	AliTOF::CreateMaterials();
	490	}
	491
	492	//_____________________________________________________________________________
	493	void AliTOFv0::Init()
	494	{
	495	//
3fe3a833	496	// Initialise the detector after the geometry has been defined
fe4da5cc	497	//
ab76897d	498	printf("**************************************"
	499	" TOF "
	500	"**************************************\n");
	501	printf("\n Version 0 of TOF initialing, "
	502	"with openings for PHOS and RICH\n\n");
	503
fe4da5cc	504	AliTOF::Init();
ab76897d	505
3fe3a833	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
	512	printf("**************************************"
	513	" TOF "
	514	"**************************************\n");
fe4da5cc	515	}
	516
	517	//_____________________________________________________________________________
	518	void AliTOFv0::StepManager()
	519	{
	520	//
	521	// Procedure called at each step in the Time Of Flight
3fe3a833	522	//
3fe3a833	523	TLorentzVector mom, pos;
826b71ec	524	Float_t hits[8],rho,phi,phid,z;
	525	Int_t sector, plate, pad_x, pad_z, strip;
	526	Int_t copy, pad_z_id, pad_x_id, strip_id, i;
ad51aeb0	527	Int_t *idtmed = fIdtmed->GetArray()-499;
826b71ec	528
	529
	530	if(gMC->GetMedium()==idtmed[513] &&
0a6d8768	531	gMC->IsTrackEntering() && gMC->TrackCharge()
826b71ec	532	&& gMC->CurrentVolID(copy)==fIdSens)
826b71ec	533	{
fe4da5cc	534	TClonesArray &lhits = *fHits;
826b71ec	535
	536	//_________getting information about hit volumes_____________
	537
	538	pad_z_id=gMC->CurrentVolOffID(2,copy);
	539	pad_z=copy;
	540
	541	pad_x_id=gMC->CurrentVolOffID(1,copy);
	542	pad_x=copy;
	543
	544	strip_id=gMC->CurrentVolOffID(5,copy);
	545	strip=copy;
	546
	547	pad_z = (strip-1)*2+pad_z;
	548
0a6d8768	549	gMC->TrackPosition(pos);
0a6d8768	550	gMC->TrackMomentum(mom);
826b71ec	551
	552	rho = sqrt(pos[0]pos[0]+pos[1]pos[1]);
	553	phi = TMath::ACos(pos[0]/rho);
	554	Float_t as = TMath::ASin(pos[1]/rho);
	555	if (as<0) phi = 2*3.141592654-phi;
	556
	557	z = pos[2];
	558
	559	if (z<= 62. && z>=-62.) plate = 3;
	560	if (z<= 216. && z>62.) plate = 4;
	561	if (z>=-216. && z<-62.) plate = 2;
	562	if (z>216.) plate = 5;
	563	if (z<-216.) plate = 1;
	564
	565	phid = phi*kRaddeg;
	566	sector = Int_t (phid/20.);
	567	sector++;
	568
0a6d8768	569	Double_t ptot=mom.Rho();
	570	Double_t norm=1/ptot;
	571	for(i=0;i<3;++i) {
	572	hits[i]=pos[i];
	573	hits[i+3]=mom[i]*norm;
	574	}
	575	hits[6]=ptot;
	576	hits[7]=pos[3];
826b71ec	577	new(lhits[fNhits++]) AliTOFhit(fIshunt,gAlice->CurrentTrack(),sector, plate, pad_x, pad_z, hits);
fe4da5cc	578	}
fe4da5cc	579	}
937fe4a4	580
826b71ec	581