[u/mrichter/AliRoot.git] / START / AliSTARTv2.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.                  *
 **************************************************************************/

/* $Id$ */

/////////////////////////////////////////////////////////////////////
//                                                                 //
// START ( T-zero) detector  version 0                        //
//
//Begin Html       
/*
<img src="gif/AliSTARTv2Class.gif">
*/
//End Html
//                                                                  //
//                                                                  //
//////////////////////////////////////////////////////////////////////

#define RIGHT_ARRAY		1
#define LEFT_ARRAY		2

#include <Riostream.h>
#include <stdlib.h>

#include <TGeometry.h>
#include <TLorentzVector.h>
#include <TMath.h>
#include <TNode.h>
#include <TTUBE.h>
#include <TVirtualMC.h>

#include "AliMagF.h"
#include "AliRun.h"
#include "AliSTARThit.h"
#include "AliSTARTv2.h"
#include "AliMC.h"
//#include "AliSTARThitPhoton.h"
//#include "TGeant3.h"

ClassImp(AliSTARTv2)


//////////////////////////////////////////////////////////////////////
// Standart constructor for START Detector version 2
//////////////////////////////////////////////////////////////////////
AliSTARTv2::AliSTARTv2(const char *name, const char *title):
 AliSTART(name,title)
{
  fIdSens1 = 0;
//  setBufferSize(128000);
}


//////////////////////////////////////////////////////////////////////
// Create the geometry of START Detector version 2
//////////////////////////////////////////////////////////////////////
void AliSTARTv2::CreateGeometry()
{
  /*
     <img src="gif/AliSTARTv2.gif">
  */

  Int_t 	*idtmed;
  Int_t 	idrotm[999];
  Int_t 	i, j;
  Float_t 	x, y, z;
  Float_t 	zRight;
  Float_t	zLeft;
  Float_t  	phi[3];
  Float_t 	theta;
  Double_t 	angel;
  
  Float_t 	pstart[3]	= {4.5,  10.7,   5.3};
  Float_t 	pinstart[3]	= {0.,    1.31,  5.25};
  Float_t 	ppmt[3]		= {0.,    1.31,  3.5};
  Float_t 	ptop[3]		= {0.,    1.3,   1.5};
//  Float_t 	preg[3]		= {0.,    1.3,   0.005};
  Float_t 	preg[3]		= {0.,    0.875, 0.005};
  Float_t 	pdes[3]		= {0.875, 1.3,   0.005};


  zRight = 75.;
  zLeft  = 350.;
  theta  = (180 / TMath::Pi()) * TMath::ATan(6.5 / zRight);
  angel  = 2 * TMath::Pi() / 12;
  idtmed = fIdtmed->GetArray();
    

  AliMatrix (idrotm[901], 90., 0., 90., 90., 180., 0.);
    
  gMC->Gsvolu ("0RST", "TUBE", idtmed[3], pstart, 3);
  gMC->Gsvolu ("0LST", "TUBE", idtmed[3], pstart, 3);
  gMC->Gspos ("0RST", 1, "ALIC", 0., 0., -zRight, 0, "ONLY");
  gMC->Gspos ("0LST", 1, "ALIC", 0., 0., zLeft, idrotm[901], "ONLY");

//  12 unit: PMT + divider
  gMC->Gsvolu("0INS", "TUBE", idtmed[3], pinstart, 3);   
  z = 0;
  for (i = 0; i < 12; i++)
  {
     x = 6.5 * TMath::Sin(i * angel);
     y = 6.5 * TMath::Cos(i * angel);
	
     phi[0] = -30 * i;
     phi[1] = 90 - i * 30;
     phi[2] = 90 - i * 30;
     for (j = 0; j < 3; j++)
	if (phi[j] < 0)  phi[j] += 360;
	
     AliMatrix (idrotm[902 + i], 90.,         phi[0],
		                 90. + theta, phi[1],
		                 theta,       phi[2]);  

     gMC->Gspos ("0INS", i + 1, "0RST", x, y, z, idrotm[902 + i], "ONLY");
     gMC->Gspos ("0INS", i + 13, "0LST", x, y, z, 0, "ONLY");
  }

  gMC->Gsvolu ("0PMT", "TUBE", idtmed[1], ppmt, 3);     
  x = y = 0;      
  z = -pinstart[2] + ppmt[2];
  gMC->Gspos ("0PMT", 1, "0INS", x, y, z, 0, "ONLY");
    
// PMT
  // Entry window (glass)
  gMC->Gsvolu ("0TOP", "TUBE", idtmed[6], ptop, 3);
  z = -ppmt[2] + ptop[2];
  gMC->Gspos ("0TOP", 1, "0PMT", 0, 0, z, 0, "ONLY");

  gMC->Gsvolu ("0REG", "TUBE", idtmed[6], preg, 3);
  z = -ppmt[2] + 2 * ptop[2] + preg[2];
  gMC->Gspos ("0REG", 1, "0PMT", 0, 0, z, 0, "ONLY");

  gMC->Gsvolu ("0DES", "TUBE", idtmed[6], pdes, 3);
  z = -ppmt[2] + 2 * ptop[2] + preg[2];
  gMC->Gspos ("0DES", 1, "0PMT", 0, 0, z, 0, "ONLY");
}   
 

//////////////////////////////////////////////////////////////////////
// Definition of avaible START materials
//////////////////////////////////////////////////////////////////////
void AliSTARTv2::CreateMaterials()
{
   Int_t isxfld   = gAlice->Field()->Integ();
   Float_t sxmgmx = gAlice->Field()->Max();
   
   Float_t a, z, d, radl, absl, buf[1];
   Int_t nbuf;

// Scintillator CH
   Float_t 	ascin[2] = {1.01, 12.01};
   Float_t 	zscin[2] = {1.,    6.};
   Float_t 	wscin[2] = {1.,    1.};
   Float_t 	denscin  = 1.03;
   
// PMT glass SiO2
   Float_t 	aglass[2] = {28.0855, 15.9994};
   Float_t 	zglass[2] = {14.,      8.};
   Float_t 	wglass[2] = { 1.,      2.};
   Float_t 	dglass    = 2.65;
   
// Ceramic   97.2% Al2O3 , 2.8% SiO2
   Float_t 	acer[2], zcer[2];
   Float_t 	wcer[2]	   = { 0.972,     0.028};
   Float_t 	aal2o3[2]  = {26.981539, 15.9994 };
   Float_t 	zal2o3[2]  = {13.,        8.};
   Float_t 	wal2o3[2]  = { 2.,        3.};
   Float_t 	denscer    = 3.6;

// Brass 80% Cu, 20% Zn
   Float_t abrass[2] = {63.546, 65.39};
   Float_t zbrass[2] = {29.,    30.};
   Float_t wbrass[2] = { 0.8,    0.2};
   Float_t denbrass  = 8.96;

//Ribber C6H12S
   Float_t aribber[3] = {12.,  1., 32.};
   Float_t zribber[3] = { 6.,  1., 16.};
   Float_t wribber[3] = { 6., 12.,  1.};
   Float_t denribber  = 0.8;
   
// Definition Cherenkov parameters
  const Int_t NUMENTRIES = 32;

  Float_t ppckov[NUMENTRIES] =
            { 2.034E-9, 2.068E-9, 2.103E-9, 2.139E-9,
              2.177E-9, 2.216E-9, 2.256E-9, 2.298E-9,
              2.341E-9, 2.386E-9, 2.433E-9, 2.481E-9,
              2.532E-9, 2.585E-9, 2.640E-9, 2.697E-9,
              2.757E-9, 2.820E-9, 2.885E-9, 2.954E-9,
              3.026E-9, 3.102E-9, 3.181E-9, 3.265E-9,
              3.353E-9, 3.446E-9, 3.545E-9, 3.649E-9,
              3.760E-9, 3.877E-9, 4.002E-9, 4.136E-9 };

  Float_t rindex_qwarz[NUMENTRIES] =
            { 1.458, 1.458, 1.458, 1.458, 1.458, 1.458, 1.458,
              1.458, 1.458, 1.458, 1.458, 1.458, 1.458, 1.458,
              1.458, 1.458, 1.458, 1.458, 1.458, 1.458, 1.458,
              1.458, 1.458, 1.458, 1.458, 1.458, 1.458, 1.458,
              1.458, 1.458, 1.458, 1.458 };

  Float_t rindex_air[NUMENTRIES] =
            { 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.,
              1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.,
              1., 1., 1., 1. };

  Float_t effic_all[NUMENTRIES] =
            { 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.,
              1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.,
              1., 1., 1., 1. };
              
  Float_t absor_qwarz[NUMENTRIES] =
  	    { 2000., 2000., 2000., 2000., 2000., 2000., 2000., 
  	      2000., 2000., 2000., 2000., 2000., 2000., 2000.,
  	      2000., 2000., 2000., 2000., 2000., 2000., 2000.,
  	      2000., 2000., 2000., 2000., 2000., 2000., 2000.,
  	      2000., 2000., 2000., 2000. };

  Float_t absor_air[NUMENTRIES] =
  	    { 200., 200., 200., 200., 200., 200., 200., 
  	      200., 200., 200., 200., 200., 200., 200.,
  	      200., 200., 200., 200., 200., 200., 200.,
  	      200., 200., 200., 200., 200., 200., 200.,
  	      200., 200., 200., 200. };
   
  Int_t *idtmed = fIdtmed->GetArray();

    
   AliMaterial (0, "START Steel$", 55.850, 26., 7.87, 1.76, 999);
   AliMaterial (1, "START Vacuum$", 1.e-16, 1.e-16, 1.e-16, 1.e16, 999);
   AliMaterial (2, "START Air$", 14.61, 7.3, .001205, 30423., 999); 
   
   AliMixture (3, "Al2O3   $", aal2o3, zal2o3, denscer, -2, wal2o3);
   AliMixture (4, "PMT glass   $", aglass, zglass, dglass, -2, wglass);
   char namate[21]="";
   gMC->Gfmate ((*fIdmate)[3], namate, a, z, d, radl, absl, buf, nbuf);
   acer[0] = a;
   zcer[0] = z;
   gMC->Gfmate ((*fIdmate)[4], namate, a, z, d, radl, absl, buf, nbuf);
   acer[1] = a;
   zcer[1] = z;
   
   AliMixture (5, "Scintillator$",ascin,zscin,denscin,-2,wscin);
   AliMixture (6, "Brass    $", abrass, zbrass, denbrass, 2, wbrass);
   AliMixture (7, "Ribber $",aribber,zribber,denribber,-3,wribber);
   AliMixture (9, "Ceramic    $", acer, zcer, denscer, 2, wcer);
   
   AliMedium (1, "START Air$", 2, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
   AliMedium (2, "Scintillator$", 5, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003);
   AliMedium (3, "Vacuum$", 1, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
   AliMedium (4, "Ceramic$", 9, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
   AliMedium (6, "Glass$", 4, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
   AliMedium (8, "Steel$", 0, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
   AliMedium (9, "Ribber  $", 7, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
   AliMedium(11, "Brass  $", 6, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);

   gMC->SetCerenkov (idtmed[6], NUMENTRIES, ppckov, absor_qwarz, effic_all, rindex_qwarz);
   gMC->SetCerenkov (idtmed[1], NUMENTRIES, ppckov, absor_air, effic_all, rindex_air);
}


//////////////////////////////////////////////////////////////////////
// Draw a shaded view of the Forward multiplicity detector version 2
//////////////////////////////////////////////////////////////////////
void AliSTARTv2::DrawModule()
{  
  //Set ALIC mother transparent
  gMC->Gsatt ("ALIC", "SEEN", 0);

  //Set volumes visible
  gMC->Gsatt ("0STA", "SEEN", 0);
  gMC->Gsatt ("0PMT", "SEEN", 1);
  gMC->Gsatt ("0DIV", "SEEN", 1);

  gMC->Gdopt ("hide", "on");
  gMC->Gdopt ("shad", "on");
  gMC->SetClipBox (".");
  gMC->SetClipBox ("*", 0, 1000, -1000, 1000, -1000, 1000);
  gMC->DefaultRange();
  gMC->Gdraw ("alic", 40, 30, 0, 12, 9.5, 0.7, 0.7);
  gMC->Gdhead (1111, "T-Zero detector");
  gMC->Gdopt ("hide", "off");
}


//////////////////////////////////////////////////////////////////////
// Initialises version 2 of the Forward Multiplicity Detector
//////////////////////////////////////////////////////////////////////
void AliSTARTv2::Init()
{
//Int_t *idtmed  = gAlice->Idtmed();

  AliSTART::Init();
  fIdSens1 = gMC->VolId ("0REG");

  printf ("*** START version 2 initialized ***\n");
}


//////////////////////////////////////////////////////////////////////
// Called for every step in the START Detector
//////////////////////////////////////////////////////////////////////
void AliSTARTv2::StepManager()
{
  Int_t 			id;
  Int_t				copy;
//  Int_t				copy1;
  Float_t			xyz[3];
  Float_t			XYZ[3];
  Float_t			hitPhoton[6];
  static Float_t 		hits[7];
  static Float_t 		edep;
  static Int_t 			vol[2];
  TLorentzVector 		pos;
  TLorentzVector		mom;
  
  
  if(!gMC->IsTrackAlive()) return; // particle has disappeared

//  TGeant3  *g3 = (TGeant3*) gMC;
//  g3->Gpcxyz();

  TClonesArray 	&lhits = *fHits;


///////////////////////////////////////////////
// If particles is photon then ...

  if (gMC->TrackPid() == 50000050)
  {
     id = gMC->CurrentVolID(copy);

     // Check the sensetive volume
     if (id == fIdSens1) 
     {
	if (gMC->IsTrackEntering()) 
	{
	   gMC->CurrentVolOffID(2,copy);
	   if (copy < 13) 
	     {
	       vol[0] = RIGHT_ARRAY;
	       vol[1] = copy;
	     }
	   else 
	     {
	       vol[0] = LEFT_ARRAY;
	       vol[1] = copy - 12;
	     }

	   gMC->TrackPosition(pos);
	   gMC->TrackMomentum(mom);
	   XYZ[0] = pos[0];
	   XYZ[1] = pos[1];
	   XYZ[2] = pos[2];
	   gMC->Gmtod (XYZ, xyz, 1);

	   hitPhoton[0] = sqrt (xyz[0] * xyz[0] + xyz[1] * xyz[1]);
	   hitPhoton[1] = mom[0];
	   hitPhoton[2] = mom[1];
	   hitPhoton[3] = mom[2];
	   hitPhoton[4] = 1e9 * gMC->TrackTime();
	   hitPhoton[5] = 1e9 * gMC->Etot();
	   
	   AddHitPhoton (gAlice->GetMCApp()->GetCurrentTrackNumber(), vol, hitPhoton);
	}
	gMC->StopTrack();
     }
     else  
	if (id == gMC->VolId ("0DES"))  gMC->StopTrack();
  }

// end photon particalary
///////////////////////////////////////////////


///////////////////////////////////////////////
// If particles is charge then ...
 
  // Float_t charge = gMC->TrackCharge();
  //  if(TMath::Abs(charge) <= 0.) return;
  id = gMC->CurrentVolID(copy);

  
  //  printf("gMC->ckine->ipart %d",gMC->ckine->ipart);
  // Check the sensetive volume
  if(id==gMC->VolId("0TOP") ) {
    if(gMC->IsTrackEntering()) {
      gMC->CurrentVolOffID(2,copy);
      if (copy < 13) 
	{
	  vol[0] = RIGHT_ARRAY;
	  vol[1] = copy;
	}
      else 
	{
	  vol[0] = LEFT_ARRAY;
	  vol[1] = copy - 12;
	}
      
      gMC->TrackPosition(pos);
      hits[0] = pos[0];
      hits[1] = pos[1];
      hits[2] = pos[2];
      Float_t etot = gMC->Etot();
      hits[4] = etot;
      Int_t part = gMC->TrackPid();
      hits[5] = part;
      Float_t ttime = gMC->TrackTime();
      hits[6] = ttime*1e9;
      edep = 0;
    }
    if(gMC->IsTrackInside()) 	{
      Float_t de = gMC->Edep(); 
      edep = edep + de;
      //       printf ("E deposition %f\n",edep);
      //    for (i=0; i<=6; i++){
      //    printf(" HITS on START inside %f\n",hits[i]); } 
    }
    if(gMC->IsTrackExiting())	{
      Float_t de = gMC->Edep(); 
      edep = edep + de;
      hits[3] = edep * 1e3;

      //       for (i=0; i<=6; i++){
      //	 printf(" HITS on START Exit %f\n",hits[i]); } 
      //for (i=0; i<=1; i++) { printf("START vol %d\n",vol[i]);}
     
      new(lhits[fNhits++]) AliSTARThit(fIshunt,gAlice->GetMCApp()->GetCurrentTrackNumber(),vol,hits);      
    }
  }

// end charge particles particalary
///////////////////////////////////////////////

}
Commit	Line	Data
2fa82489	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
88cb7938	16	/* $Id$ */
88cb7938	17
2fa82489	18	/////////////////////////////////////////////////////////////////////
	19	// //
	20	// START ( T-zero) detector version 0 //
	21	//
	22	//Begin Html
	23	/*
	24	<img src="gif/AliSTARTv2Class.gif">
	25	*/
	26	//End Html
	27	// //
	28	// //
	29	//////////////////////////////////////////////////////////////////////
	30
	31	#define RIGHT_ARRAY 1
	32	#define LEFT_ARRAY 2
	33
88cb7938	34	#include <Riostream.h>
	35	#include <stdlib.h>
	36
2fa82489	37	#include <TGeometry.h>
2fa82489	38	#include <TLorentzVector.h>
88cb7938	39	#include <TMath.h>
	40	#include <TNode.h>
	41	#include <TTUBE.h>
	42	#include <TVirtualMC.h>
2fa82489	43
2fa82489	44	#include "AliMagF.h"
88cb7938	45	#include "AliRun.h"
2fa82489	46	#include "AliSTARThit.h"
88cb7938	47	#include "AliSTARTv2.h"
5d12ce38	48	#include "AliMC.h"
88cb7938	49	//#include "AliSTARThitPhoton.h"
88cb7938	50	//#include "TGeant3.h"
2fa82489	51
	52	ClassImp(AliSTARTv2)
	53
	54
	55	//////////////////////////////////////////////////////////////////////
	56	// Standart constructor for START Detector version 2
	57	//////////////////////////////////////////////////////////////////////
	58	AliSTARTv2::AliSTARTv2(const char name, const char title):
	59	AliSTART(name,title)
	60	{
	61	fIdSens1 = 0;
	62	// setBufferSize(128000);
	63	}
	64
	65
	66	//////////////////////////////////////////////////////////////////////
	67	// Create the geometry of START Detector version 2
	68	//////////////////////////////////////////////////////////////////////
	69	void AliSTARTv2::CreateGeometry()
	70	{
	71	/*
	72	<img src="gif/AliSTARTv2.gif">
	73	*/
	74
	75	Int_t *idtmed;
	76	Int_t idrotm[999];
	77	Int_t i, j;
	78	Float_t x, y, z;
	79	Float_t zRight;
	80	Float_t zLeft;
	81	Float_t phi[3];
	82	Float_t theta;
	83	Double_t angel;
	84
	85	Float_t pstart[3] = {4.5, 10.7, 5.3};
	86	Float_t pinstart[3] = {0., 1.31, 5.25};
	87	Float_t ppmt[3] = {0., 1.31, 3.5};
	88	Float_t ptop[3] = {0., 1.3, 1.5};
	89	// Float_t preg[3] = {0., 1.3, 0.005};
	90	Float_t preg[3] = {0., 0.875, 0.005};
	91	Float_t pdes[3] = {0.875, 1.3, 0.005};
	92
	93
	94	zRight = 75.;
	95	zLeft = 350.;
	96	theta = (180 / TMath::Pi()) * TMath::ATan(6.5 / zRight);
	97	angel = 2 * TMath::Pi() / 12;
	98	idtmed = fIdtmed->GetArray();
	99
	100
	101	AliMatrix (idrotm[901], 90., 0., 90., 90., 180., 0.);
	102
	103	gMC->Gsvolu ("0RST", "TUBE", idtmed[3], pstart, 3);
	104	gMC->Gsvolu ("0LST", "TUBE", idtmed[3], pstart, 3);
1663993c	105	gMC->Gspos ("0RST", 1, "ALIC", 0., 0., -zRight, 0, "ONLY");
1663993c	106	gMC->Gspos ("0LST", 1, "ALIC", 0., 0., zLeft, idrotm[901], "ONLY");
2fa82489	107
	108	// 12 unit: PMT + divider
	109	gMC->Gsvolu("0INS", "TUBE", idtmed[3], pinstart, 3);
	110	z = 0;
	111	for (i = 0; i < 12; i++)
	112	{
	113	x = 6.5 * TMath::Sin(i * angel);
	114	y = 6.5 * TMath::Cos(i * angel);
	115
	116	phi[0] = -30 * i;
	117	phi[1] = 90 - i * 30;
	118	phi[2] = 90 - i * 30;
	119	for (j = 0; j < 3; j++)
	120	if (phi[j] < 0) phi[j] += 360;
	121
	122	AliMatrix (idrotm[902 + i], 90., phi[0],
	123	90. + theta, phi[1],
	124	theta, phi[2]);
	125
	126	gMC->Gspos ("0INS", i + 1, "0RST", x, y, z, idrotm[902 + i], "ONLY");
	127	gMC->Gspos ("0INS", i + 13, "0LST", x, y, z, 0, "ONLY");
	128	}
	129
	130	gMC->Gsvolu ("0PMT", "TUBE", idtmed[1], ppmt, 3);
	131	x = y = 0;
	132	z = -pinstart[2] + ppmt[2];
	133	gMC->Gspos ("0PMT", 1, "0INS", x, y, z, 0, "ONLY");
	134
	135	// PMT
	136	// Entry window (glass)
	137	gMC->Gsvolu ("0TOP", "TUBE", idtmed[6], ptop, 3);
	138	z = -ppmt[2] + ptop[2];
	139	gMC->Gspos ("0TOP", 1, "0PMT", 0, 0, z, 0, "ONLY");
	140
	141	gMC->Gsvolu ("0REG", "TUBE", idtmed[6], preg, 3);
	142	z = -ppmt[2] + 2 * ptop[2] + preg[2];
	143	gMC->Gspos ("0REG", 1, "0PMT", 0, 0, z, 0, "ONLY");
	144
	145	gMC->Gsvolu ("0DES", "TUBE", idtmed[6], pdes, 3);
	146	z = -ppmt[2] + 2 * ptop[2] + preg[2];
	147	gMC->Gspos ("0DES", 1, "0PMT", 0, 0, z, 0, "ONLY");
	148	}
	149
	150
	151	//////////////////////////////////////////////////////////////////////
	152	// Definition of avaible START materials
	153	//////////////////////////////////////////////////////////////////////
	154	void AliSTARTv2::CreateMaterials()
	155	{
	156	Int_t isxfld = gAlice->Field()->Integ();
	157	Float_t sxmgmx = gAlice->Field()->Max();
	158
	159	Float_t a, z, d, radl, absl, buf[1];
	160	Int_t nbuf;
	161
	162	// Scintillator CH
	163	Float_t ascin[2] = {1.01, 12.01};
	164	Float_t zscin[2] = {1., 6.};
	165	Float_t wscin[2] = {1., 1.};
	166	Float_t denscin = 1.03;
	167
	168	// PMT glass SiO2
	169	Float_t aglass[2] = {28.0855, 15.9994};
	170	Float_t zglass[2] = {14., 8.};
171	Float_t wglass[2] = { 1., 2.};
172	Float_t dglass = 2.65;
173
174	// Ceramic 97.2% Al2O3 , 2.8% SiO2
175	Float_t acer[2], zcer[2];
176	Float_t wcer[2] = { 0.972, 0.028};
177	Float_t aal2o3[2] = {26.981539, 15.9994 };
178	Float_t zal2o3[2] = {13., 8.};
179	Float_t wal2o3[2] = { 2., 3.};
180	Float_t denscer = 3.6;
181
182	// Brass 80% Cu, 20% Zn
183	Float_t abrass[2] = {63.546, 65.39};
184	Float_t zbrass[2] = {29., 30.};
185	Float_t wbrass[2] = { 0.8, 0.2};
186	Float_t denbrass = 8.96;
187
188	//Ribber C6H12S
189	Float_t aribber[3] = {12., 1., 32.};
190	Float_t zribber[3] = { 6., 1., 16.};
191	Float_t wribber[3] = { 6., 12., 1.};
192	Float_t denribber = 0.8;
193
194	// Definition Cherenkov parameters
195	const Int_t NUMENTRIES = 32;
196
197	Float_t ppckov[NUMENTRIES] =
198	{ 2.034E-9, 2.068E-9, 2.103E-9, 2.139E-9,
199	2.177E-9, 2.216E-9, 2.256E-9, 2.298E-9,
200	2.341E-9, 2.386E-9, 2.433E-9, 2.481E-9,
201	2.532E-9, 2.585E-9, 2.640E-9, 2.697E-9,
202	2.757E-9, 2.820E-9, 2.885E-9, 2.954E-9,
203	3.026E-9, 3.102E-9, 3.181E-9, 3.265E-9,
204	3.353E-9, 3.446E-9, 3.545E-9, 3.649E-9,
205	3.760E-9, 3.877E-9, 4.002E-9, 4.136E-9 };
206
207	Float_t rindex_qwarz[NUMENTRIES] =
208	{ 1.458, 1.458, 1.458, 1.458, 1.458, 1.458, 1.458,
209	1.458, 1.458, 1.458, 1.458, 1.458, 1.458, 1.458,
210	1.458, 1.458, 1.458, 1.458, 1.458, 1.458, 1.458,
211	1.458, 1.458, 1.458, 1.458, 1.458, 1.458, 1.458,
212	1.458, 1.458, 1.458, 1.458 };
213
214	Float_t rindex_air[NUMENTRIES] =
215	{ 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.,
216	1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.,
217	1., 1., 1., 1. };
218
219	Float_t effic_all[NUMENTRIES] =
220	{ 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.,
221	1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1., 1.,
222	1., 1., 1., 1. };
223
224	Float_t absor_qwarz[NUMENTRIES] =
225	{ 2000., 2000., 2000., 2000., 2000., 2000., 2000.,
226	2000., 2000., 2000., 2000., 2000., 2000., 2000.,
227	2000., 2000., 2000., 2000., 2000., 2000., 2000.,
228	2000., 2000., 2000., 2000., 2000., 2000., 2000.,
229	2000., 2000., 2000., 2000. };
230
231	Float_t absor_air[NUMENTRIES] =
232	{ 200., 200., 200., 200., 200., 200., 200.,
233	200., 200., 200., 200., 200., 200., 200.,
234	200., 200., 200., 200., 200., 200., 200.,
235	200., 200., 200., 200., 200., 200., 200.,
236	200., 200., 200., 200. };
237
238	Int_t *idtmed = fIdtmed->GetArray();
239
240
241	AliMaterial (0, "START Steel$", 55.850, 26., 7.87, 1.76, 999);
242	AliMaterial (1, "START Vacuum$", 1.e-16, 1.e-16, 1.e-16, 1.e16, 999);
243	AliMaterial (2, "START Air$", 14.61, 7.3, .001205, 30423., 999);
244
245	AliMixture (3, "Al2O3 $", aal2o3, zal2o3, denscer, -2, wal2o3);
246	AliMixture (4, "PMT glass $", aglass, zglass, dglass, -2, wglass);
00d6d986	247	char namate[21]="";
2fa82489	248	gMC->Gfmate ((*fIdmate)[3], namate, a, z, d, radl, absl, buf, nbuf);
	249	acer[0] = a;
	250	zcer[0] = z;
	251	gMC->Gfmate ((*fIdmate)[4], namate, a, z, d, radl, absl, buf, nbuf);
	252	acer[1] = a;
	253	zcer[1] = z;
	254
	255	AliMixture (5, "Scintillator$",ascin,zscin,denscin,-2,wscin);
	256	AliMixture (6, "Brass $", abrass, zbrass, denbrass, 2, wbrass);
	257	AliMixture (7, "Ribber $",aribber,zribber,denribber,-3,wribber);
	258	AliMixture (9, "Ceramic $", acer, zcer, denscer, 2, wcer);
	259
	260	AliMedium (1, "START Air$", 2, 0, isxfld, sxmgmx, 10., .1, 1., .003, .003);
	261	AliMedium (2, "Scintillator$", 5, 1, isxfld, sxmgmx, 10., .01, 1., .003, .003);
	262	AliMedium (3, "Vacuum$", 1, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
	263	AliMedium (4, "Ceramic$", 9, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
	264	AliMedium (6, "Glass$", 4, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
	265	AliMedium (8, "Steel$", 0, 0, isxfld, sxmgmx, 1., .001, 1., .001, .001);
	266	AliMedium (9, "Ribber $", 7, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
	267	AliMedium(11, "Brass $", 6, 0, isxfld, sxmgmx, 10., .01, .1, .003, .003);
	268
	269	gMC->SetCerenkov (idtmed[6], NUMENTRIES, ppckov, absor_qwarz, effic_all, rindex_qwarz);
	270	gMC->SetCerenkov (idtmed[1], NUMENTRIES, ppckov, absor_air, effic_all, rindex_air);
	271	}
	272
	273
	274	//////////////////////////////////////////////////////////////////////
	275	// Draw a shaded view of the Forward multiplicity detector version 2
	276	//////////////////////////////////////////////////////////////////////
	277	void AliSTARTv2::DrawModule()
	278	{
	279	//Set ALIC mother transparent
	280	gMC->Gsatt ("ALIC", "SEEN", 0);
	281
	282	//Set volumes visible
	283	gMC->Gsatt ("0STA", "SEEN", 0);
	284	gMC->Gsatt ("0PMT", "SEEN", 1);
	285	gMC->Gsatt ("0DIV", "SEEN", 1);
	286
	287	gMC->Gdopt ("hide", "on");
	288	gMC->Gdopt ("shad", "on");
	289	gMC->SetClipBox (".");
	290	gMC->SetClipBox ("*", 0, 1000, -1000, 1000, -1000, 1000);
	291	gMC->DefaultRange();
	292	gMC->Gdraw ("alic", 40, 30, 0, 12, 9.5, 0.7, 0.7);
	293	gMC->Gdhead (1111, "T-Zero detector");
	294	gMC->Gdopt ("hide", "off");
	295	}
	296
	297
	298	//////////////////////////////////////////////////////////////////////
	299	// Initialises version 2 of the Forward Multiplicity Detector
	300	//////////////////////////////////////////////////////////////////////
	301	void AliSTARTv2::Init()
	302	{
	303	//Int_t *idtmed = gAlice->Idtmed();
	304
	305	AliSTART::Init();
	306	fIdSens1 = gMC->VolId ("0REG");
	307
	308	printf ("* START version 2 initialized *\n");
	309	}
	310
	311
312	//////////////////////////////////////////////////////////////////////
313	// Called for every step in the START Detector
314	//////////////////////////////////////////////////////////////////////
315	void AliSTARTv2::StepManager()
316	{
317	Int_t id;
318	Int_t copy;
319	// Int_t copy1;
320	Float_t xyz[3];
321	Float_t XYZ[3];
322	Float_t hitPhoton[6];
323	static Float_t hits[7];
324	static Float_t edep;
325	static Int_t vol[2];
326	TLorentzVector pos;
327	TLorentzVector mom;
328
329
330	if(!gMC->IsTrackAlive()) return; // particle has disappeared
331
332	// TGeant3 g3 = (TGeant3) gMC;
333	// g3->Gpcxyz();
334
335	TClonesArray &lhits = *fHits;
336
337
338	///////////////////////////////////////////////
339	// If particles is photon then ...
340
341	if (gMC->TrackPid() == 50000050)
342	{
343	id = gMC->CurrentVolID(copy);
344
345	// Check the sensetive volume
346	if (id == fIdSens1)
347	{
348	if (gMC->IsTrackEntering())
349	{
350	gMC->CurrentVolOffID(2,copy);
351	if (copy < 13)
352	{
353	vol[0] = RIGHT_ARRAY;
354	vol[1] = copy;
355	}
356	else
357	{
358	vol[0] = LEFT_ARRAY;
359	vol[1] = copy - 12;
360	}
361
362	gMC->TrackPosition(pos);
363	gMC->TrackMomentum(mom);
364	XYZ[0] = pos[0];
365	XYZ[1] = pos[1];
366	XYZ[2] = pos[2];
367	gMC->Gmtod (XYZ, xyz, 1);
368
369	hitPhoton[0] = sqrt (xyz[0] * xyz[0] + xyz[1] * xyz[1]);
370	hitPhoton[1] = mom[0];
371	hitPhoton[2] = mom[1];
372	hitPhoton[3] = mom[2];
373	hitPhoton[4] = 1e9 * gMC->TrackTime();
374	hitPhoton[5] = 1e9 * gMC->Etot();
375
5d12ce38	376	AddHitPhoton (gAlice->GetMCApp()->GetCurrentTrackNumber(), vol, hitPhoton);
2fa82489	377	}
	378	gMC->StopTrack();
	379	}
	380	else
	381	if (id == gMC->VolId ("0DES")) gMC->StopTrack();
	382	}
	383
	384	// end photon particalary
	385	///////////////////////////////////////////////
	386
	387
	388	///////////////////////////////////////////////
	389	// If particles is charge then ...
	390
	391	// Float_t charge = gMC->TrackCharge();
	392	// if(TMath::Abs(charge) <= 0.) return;
	393	id = gMC->CurrentVolID(copy);
	394
	395
	396	// printf("gMC->ckine->ipart %d",gMC->ckine->ipart);
	397	// Check the sensetive volume
	398	if(id==gMC->VolId("0TOP") ) {
	399	if(gMC->IsTrackEntering()) {
	400	gMC->CurrentVolOffID(2,copy);
	401	if (copy < 13)
	402	{
	403	vol[0] = RIGHT_ARRAY;
	404	vol[1] = copy;
	405	}
	406	else
	407	{
	408	vol[0] = LEFT_ARRAY;
	409	vol[1] = copy - 12;
	410	}
	411
	412	gMC->TrackPosition(pos);
	413	hits[0] = pos[0];
	414	hits[1] = pos[1];
	415	hits[2] = pos[2];
	416	Float_t etot = gMC->Etot();
	417	hits[4] = etot;
	418	Int_t part = gMC->TrackPid();
	419	hits[5] = part;
	420	Float_t ttime = gMC->TrackTime();
	421	hits[6] = ttime*1e9;
	422	edep = 0;
	423	}
	424	if(gMC->IsTrackInside()) {
	425	Float_t de = gMC->Edep();
	426	edep = edep + de;
	427	// printf ("E deposition %f\n",edep);
	428	// for (i=0; i<=6; i++){
	429	// printf(" HITS on START inside %f\n",hits[i]); }
	430	}
	431	if(gMC->IsTrackExiting()) {
	432	Float_t de = gMC->Edep();
	433	edep = edep + de;
	434	hits[3] = edep * 1e3;
	435
	436	// for (i=0; i<=6; i++){
	437	// printf(" HITS on START Exit %f\n",hits[i]); }
	438	//for (i=0; i<=1; i++) { printf("START vol %d\n",vol[i]);}
	439
5d12ce38	440	new(lhits[fNhits++]) AliSTARThit(fIshunt,gAlice->GetMCApp()->GetCurrentTrackNumber(),vol,hits);
2fa82489	441	}
	442	}
	443
	444	// end charge particles particalary
	445	///////////////////////////////////////////////
	446
	447	}