[u/mrichter/AliRoot.git] / EMCAL / AliEMCALv2.cxx

/**************************************************************************
 * Copyright(c) 1998-2004, 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.                  *
 **************************************************************************/

/* $Id$ */

//_________________________________________________________________________
//*-- Implementation version v2 of EMCAL Manager class; SHASHLYK version
//*-- An object of this class does not produce digits
//*-- It is the one to use if you do want to produce outputs in TREEH 
//*--                  
//*-- Author : Alexei Pavlinov (WSU)

// This Class not stores information on all particles prior to EMCAL entry - in order to facilitate analysis.
// This is done by setting fIShunt =2, and flagging all parents of particles entering the EMCAL.

#include <cassert>
// --- ROOT system ---
#include <TBrowser.h>
#include <TClonesArray.h>
#include <TH2.h>
#include <TParticle.h>
#include <TROOT.h>
#include <TVirtualMC.h>

// --- Standard library ---

// --- AliRoot header files ---
#include "AliEMCALv2.h"
#include "AliEMCALHit.h"
#include "AliEMCALGeometry.h"
#include "AliRun.h"
#include "AliHeader.h"
#include "AliMC.h"
#include "AliStack.h"
#include "AliTrackReference.h"
// for TRD1 case only; May 31,2006

ClassImp(AliEMCALv2)

//______________________________________________________________________
AliEMCALv2::AliEMCALv2()
  : AliEMCALv1()
{
  // ctor
}

//______________________________________________________________________
AliEMCALv2::AliEMCALv2(const char *name, const char *title, 
                       const Bool_t checkGeoAndRun)
  : AliEMCALv1(name,title,checkGeoAndRun)
{
    // Standard Creator.

    //fHits= new TClonesArray("AliEMCALHit",1000); //Already done in ctor of v1
    gAlice->GetMCApp()->AddHitList(fHits);

    fNhits    = 0;
    fIshunt   = 2; // All hits are associated with particles entering the calorimeter
    fTimeCut  = 30e-09;
  
    printf("Geo %s, check %d \n", title, checkGeoAndRun );
    fGeometry = GetGeometry(); 
}

//______________________________________________________________________
AliEMCALv2::~AliEMCALv2(){
    // dtor

  //Already done in dtor of v1
//  if ( fHits ) {
//    fHits->Clear();
//    delete fHits;
//    fHits = 0;
//  }
}

//______________________________________________________________________
void AliEMCALv2::AddHit(Int_t shunt, Int_t primary, Int_t tracknumber, Int_t iparent, Float_t ienergy, 
			Int_t id, Float_t * hits,Float_t * p){
    // Add a hit to the hit list.
    // An EMCAL hit is the sum of all hits in a tower section
    //   originating from the same entering particle 
    static Int_t hitCounter;
    static AliEMCALHit *newHit, *curHit;
    static Bool_t deja ;
  
    deja = kFALSE;

    newHit = new AliEMCALHit(shunt, primary, tracknumber, iparent, ienergy, id, hits, p);
    for ( hitCounter = fNhits-1; hitCounter >= 0 && !deja; hitCounter-- ) {
	curHit = (AliEMCALHit*) (*fHits)[hitCounter];
	// We add hits with the same tracknumber, while GEANT treats
	// primaries succesively
	if(curHit->GetPrimary() != primary) 
	  break;
	if( *curHit == *newHit ) {
	    *curHit = *curHit + *newHit;
	    deja = kTRUE;
	    //            break; // 30-aug-04 by PAI 
	} // end if
    } // end for hitCounter
    
    if ( !deja ) {
	new((*fHits)[fNhits]) AliEMCALHit(*newHit);
	fNhits++;
    }
    //    printf(" fNhits %i \n", fNhits); 
    delete newHit;
}

//______________________________________________________________________
void AliEMCALv2::StepManager(void){
  // Accumulates hits as long as the track stays in a tower

  // position wrt MRS and energy deposited
  static Float_t        xyzte[5]={0.,0.,0.,0.,0.};// position wrt MRS, time and energy deposited
  static Float_t        pmom[4]={0.,0.,0.,0.};
  static TLorentzVector pos;  // Lorentz vector of the track current position.
  static TLorentzVector mom;  // Lorentz vector of the track current momentum.
  static Float_t ienergy = 0; // part->Energy();
  static TString curVolName="";
  static int supModuleNumber=-1, moduleNumber=-1, yNumber=-1, xNumber=-1, absid=-1;
  static int keyGeom=1;  //real TRD1 geometry
  static const char *vn = "SCMX"; // Apr 13, 2006 - only TRD1 case now
  static int nSMOP[7]={1,3,5,7,9,11}; // 30-mar-05
  static int nSMON[7]={2,4,6,8,10,12};
  static Float_t depositedEnergy=0.0; 

  if(keyGeom == 0) {
    keyGeom = 2;
    if(gMC->VolId("PBMO")==0 || gMC->VolId("WSUC")==1) {
      vn      = "SCMX";   // old TRD2(TRD1) or WSUC
      keyGeom = 1;
    }    
    printf("AliEMCALv2::StepManager():  keyGeom %i : Sensetive volume %s \n", 
    keyGeom, vn); 
    if(gMC->VolId("WSUC")==1) printf(" WSUC - cosmic ray stand geometry \n");
  }
  Int_t tracknumber =  gAlice->GetMCApp()->GetCurrentTrackNumber();
  Int_t parent=0;
  TParticle* part=0;

  curVolName = gMC->CurrentVolName();
  if(curVolName.Contains(vn) || curVolName.Contains("SCX")) { // We are in a scintillator layer; SCX for 3X3
    
    if( ((depositedEnergy = gMC->Edep()) > 0.)  && (gMC->TrackTime() < fTimeCut)){// Track is inside a scintillator and deposits some energy
      //       Info("StepManager "," entry %i DE %f",++ientry, depositedEnergy); // for testing
       if (fCurPrimary==-1) 
	fCurPrimary=gAlice->GetMCApp()->GetPrimary(tracknumber);

      if (fCurParent==-1 || tracknumber != fCurTrack) {
	// Check parentage
	parent=tracknumber;

	if (fCurParent != -1) {
	  while (parent != fCurParent && parent != -1) {
	    //TParticle *part=gAlice->GetMCApp()->Particle(parent);
	    part=gAlice->GetMCApp()->Particle(parent);
	    parent=part->GetFirstMother();
	  }
	}
	if (fCurParent==-1 || parent==-1) {
	  //Int_t parent=tracknumber;
	  //TParticle *part=gAlice->GetMCApp()->Particle(parent);
	  parent=tracknumber;
	  part=gAlice->GetMCApp()->Particle(parent);
	  while (parent != -1 && fGeometry->IsInEMCAL(part->Vx(),part->Vy(),part->Vz())) {
	    parent=part->GetFirstMother();
	    if (parent!=-1) 
	      part=gAlice->GetMCApp()->Particle(parent);
	  } 
	  fCurParent=parent;
	  if (fCurParent==-1)
	    Error("StepManager","Cannot find parent");
	  else {
	    //TParticle *part=gAlice->GetMCApp()->Particle(fCurParent);
	    part=gAlice->GetMCApp()->Particle(fCurParent);
	    ienergy = part->Energy(); 

	    //Add reference to parent in TR tree. 	
	    AddTrackReference(tracknumber, AliTrackReference::kEMCAL);

	  }
	  while (parent != -1) {
	    part=gAlice->GetMCApp()->Particle(parent);
	    part->SetBit(kKeepBit);
	    parent=part->GetFirstMother();
	  }
	}
	fCurTrack=tracknumber;
      }    
      gMC->TrackPosition(pos);
      xyzte[0] = pos[0];
      xyzte[1] = pos[1];
      xyzte[2] = pos[2];
      xyzte[3] = gMC->TrackTime() ;       
      
      gMC->TrackMomentum(mom);
      pmom[0] = mom[0];
      pmom[1] = mom[1];
      pmom[2] = mom[2];
      pmom[3] = mom[3];
      
      //      if(ientry%200 > 0) return; // testing
      supModuleNumber = moduleNumber = yNumber = xNumber = absid = 0;
      if(keyGeom >= 1) { // TRD1 case now
        gMC->CurrentVolOffID(4, supModuleNumber);
        gMC->CurrentVolOffID(3, moduleNumber);
        gMC->CurrentVolOffID(1, yNumber);
        gMC->CurrentVolOffID(0, xNumber); // really x number now
        if(strcmp(gMC->CurrentVolOffName(4),"SM10")==0) supModuleNumber += 10; // 13-oct-05
        if(strcmp(gMC->CurrentVolOffName(4),"SM3rd")==0) supModuleNumber += 10; // 1-feb-12
	// Nov 10,2006
        if(strcmp(gMC->CurrentVolOffName(0),vn) != 0) { // 3X3 case
          if     (strcmp(gMC->CurrentVolOffName(0),"SCX1")==0) xNumber=1;
          else if(strcmp(gMC->CurrentVolOffName(0),"SCX2")==0) xNumber=2;
          else if(strcmp(gMC->CurrentVolOffName(0),"SCX3")==0) xNumber=3;
          else Fatal("StepManager()", "Wrong name of sensitive volume in 3X3 case : %s ", gMC->CurrentVolOffName(0));
	}
      } else {
        gMC->CurrentVolOffID(5, supModuleNumber);
        gMC->CurrentVolOffID(4, moduleNumber);
        gMC->CurrentVolOffID(1, yNumber);
        gMC->CurrentVolOffID(0, xNumber);
        if     (strcmp(gMC->CurrentVolOffName(5),"SMOP")==0) supModuleNumber = nSMOP[supModuleNumber-1];
        else if(strcmp(gMC->CurrentVolOffName(5),"SMON")==0) supModuleNumber = nSMON[supModuleNumber-1];
        else   assert(0); // something wrong
      }
		
      // Due to problem with index ordering conventions the calcultation of absid is no more like this:	
      //absid = fGeometry->GetAbsCellId(smNumber, moduleNumber-1, yNumber-1, xNumber-1);
      
      //Swap A side in Phi and C side in Eta due to wrong indexing.
      Int_t iphi = -1;
      Int_t ieta = -1;
      Int_t smNumber = supModuleNumber-1;
      Int_t smType   = 1;
      fGeometry->GetCellPhiEtaIndexInSModule(smNumber,moduleNumber-1,yNumber-1,xNumber-1, iphi, ieta);
      if (smNumber%2 == 0) {
	ieta = ((fGeometry->GetCentersOfCellsEtaDir()).GetSize()-1)-ieta;// 47-ieta, revert the ordering on A side in order to keep convention.
      }
      else {  
	if(smNumber >= 10 && strcmp(gMC->CurrentVolOffName(4),"SM10")==0) smType = 2 ; //half supermodule. previous design/idea
	if(smNumber >= 10 && strcmp(gMC->CurrentVolOffName(4),"SM3rd")==0) smType = 3 ; //one third (installed in 2012) supermodule
	iphi= ((fGeometry->GetCentersOfCellsPhiDir()).GetSize()/smType-1)-iphi;//23-iphi, revert the ordering on C side in order to keep convention.
      }
      
      //Once we know the indexes, calculate the absolute ID
      absid = fGeometry->GetAbsCellIdFromCellIndexes(smNumber, iphi, ieta);
      
      if (absid < 0) {
        printf(" supModuleNumber %i : moduleNumber %i : yNumber %i : xNumber %i \n",
	       supModuleNumber, moduleNumber, yNumber, xNumber); 
	Fatal("StepManager()", "Wrong id : %i ", absid) ; 
      }

      Float_t lightYield =  depositedEnergy ;
      // Apply Birk's law (copied from G3BIRK)

      if (gMC->TrackCharge()!=0) { // Check
	  Float_t birkC1Mod = 0;
	if (fBirkC0==1){ // Apply correction for higher charge states
	  if (TMath::Abs(gMC->TrackCharge())>=2) birkC1Mod = fBirkC1*7.2/12.6;
	  else                                   birkC1Mod = fBirkC1;
	}

	Float_t dedxcm=0.;
	if (gMC->TrackStep()>0)  dedxcm=1000.*gMC->Edep()/gMC->TrackStep();
	else                     dedxcm=0;
	lightYield=lightYield/(1.+birkC1Mod*dedxcm+fBirkC2*dedxcm*dedxcm);
      } 

      // use sampling fraction to get original energy --HG
      //      xyzte[4] = lightYield * fGeometry->GetSampling();
      xyzte[4] = lightYield; // 15-dec-04
        
      if (gDebug == -2) 
      printf("#sm %2i #m %3i #x %1i #z %1i -> absid %i : xyzte[4] = %f\n",
      supModuleNumber,moduleNumber,yNumber,xNumber,absid, xyzte[4]);

      AddHit(fIshunt, fCurPrimary,tracknumber, fCurParent, ienergy, absid,  xyzte, pmom);
    } // there is deposited energy
  }
}
Commit	Line	Data
	1	/**************************************************************************
	2	* Copyright(c) 1998-2004, 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	/* $Id$ */
	17
	18	//_________________________________________________________________________
	19	//*-- Implementation version v2 of EMCAL Manager class; SHASHLYK version
	20	//*-- An object of this class does not produce digits
	21	//*-- It is the one to use if you do want to produce outputs in TREEH
	22	//*--
	23	//*-- Author : Alexei Pavlinov (WSU)
	24
	25	// This Class not stores information on all particles prior to EMCAL entry - in order to facilitate analysis.
	26	// This is done by setting fIShunt =2, and flagging all parents of particles entering the EMCAL.
	27
	28	#include <cassert>
	29	// --- ROOT system ---
	30	#include <TBrowser.h>
	31	#include <TClonesArray.h>
	32	#include <TH2.h>
	33	#include <TParticle.h>
	34	#include <TROOT.h>
	35	#include <TVirtualMC.h>
	36
	37	// --- Standard library ---
	38
	39	// --- AliRoot header files ---
	40	#include "AliEMCALv2.h"
	41	#include "AliEMCALHit.h"
	42	#include "AliEMCALGeometry.h"
	43	#include "AliRun.h"
	44	#include "AliHeader.h"
	45	#include "AliMC.h"
	46	#include "AliStack.h"
	47	#include "AliTrackReference.h"
	48	// for TRD1 case only; May 31,2006
	49
	50	ClassImp(AliEMCALv2)
	51
	52	//______________________________________________________________________
	53	AliEMCALv2::AliEMCALv2()
	54	: AliEMCALv1()
	55	{
	56	// ctor
	57	}
	58
	59	//______________________________________________________________________
	60	AliEMCALv2::AliEMCALv2(const char name, const char title,
	61	const Bool_t checkGeoAndRun)
	62	: AliEMCALv1(name,title,checkGeoAndRun)
	63	{
	64	// Standard Creator.
	65
	66	//fHits= new TClonesArray("AliEMCALHit",1000); //Already done in ctor of v1
	67	gAlice->GetMCApp()->AddHitList(fHits);
	68
	69	fNhits = 0;
	70	fIshunt = 2; // All hits are associated with particles entering the calorimeter
	71	fTimeCut = 30e-09;
	72
	73	printf("Geo %s, check %d \n", title, checkGeoAndRun );
	74	fGeometry = GetGeometry();
	75	}
	76
	77	//______________________________________________________________________
	78	AliEMCALv2::~AliEMCALv2(){
	79	// dtor
	80
	81	//Already done in dtor of v1
	82	// if ( fHits ) {
	83	// fHits->Clear();
	84	// delete fHits;
	85	// fHits = 0;
	86	// }
	87	}
	88
	89	//______________________________________________________________________
	90	void AliEMCALv2::AddHit(Int_t shunt, Int_t primary, Int_t tracknumber, Int_t iparent, Float_t ienergy,
	91	Int_t id, Float_t * hits,Float_t * p){
	92	// Add a hit to the hit list.
	93	// An EMCAL hit is the sum of all hits in a tower section
	94	// originating from the same entering particle
	95	static Int_t hitCounter;
	96	static AliEMCALHit newHit, curHit;
	97	static Bool_t deja ;
	98
	99	deja = kFALSE;
	100
	101	newHit = new AliEMCALHit(shunt, primary, tracknumber, iparent, ienergy, id, hits, p);
	102	for ( hitCounter = fNhits-1; hitCounter >= 0 && !deja; hitCounter-- ) {
	103	curHit = (AliEMCALHit) (fHits)[hitCounter];
	104	// We add hits with the same tracknumber, while GEANT treats
	105	// primaries succesively
	106	if(curHit->GetPrimary() != primary)
	107	break;
	108	if( curHit == newHit ) {
	109	curHit = curHit + *newHit;
	110	deja = kTRUE;
	111	// break; // 30-aug-04 by PAI
	112	} // end if
	113	} // end for hitCounter
	114
	115	if ( !deja ) {
	116	new((fHits)[fNhits]) AliEMCALHit(newHit);
	117	fNhits++;
	118	}
	119	// printf(" fNhits %i \n", fNhits);
	120	delete newHit;
	121	}
	122
	123	//______________________________________________________________________
	124	void AliEMCALv2::StepManager(void){
	125	// Accumulates hits as long as the track stays in a tower
	126
	127	// position wrt MRS and energy deposited
	128	static Float_t xyzte[5]={0.,0.,0.,0.,0.};// position wrt MRS, time and energy deposited
	129	static Float_t pmom[4]={0.,0.,0.,0.};
	130	static TLorentzVector pos; // Lorentz vector of the track current position.
	131	static TLorentzVector mom; // Lorentz vector of the track current momentum.
	132	static Float_t ienergy = 0; // part->Energy();
	133	static TString curVolName="";
	134	static int supModuleNumber=-1, moduleNumber=-1, yNumber=-1, xNumber=-1, absid=-1;
	135	static int keyGeom=1; //real TRD1 geometry
	136	static const char *vn = "SCMX"; // Apr 13, 2006 - only TRD1 case now
	137	static int nSMOP[7]={1,3,5,7,9,11}; // 30-mar-05
	138	static int nSMON[7]={2,4,6,8,10,12};
	139	static Float_t depositedEnergy=0.0;
	140
	141	if(keyGeom == 0) {
	142	keyGeom = 2;
	143	if(gMC->VolId("PBMO")==0 \|\| gMC->VolId("WSUC")==1) {
	144	vn = "SCMX"; // old TRD2(TRD1) or WSUC
	145	keyGeom = 1;
	146	}
	147	printf("AliEMCALv2::StepManager(): keyGeom %i : Sensetive volume %s \n",
	148	keyGeom, vn);
	149	if(gMC->VolId("WSUC")==1) printf(" WSUC - cosmic ray stand geometry \n");
	150	}
	151	Int_t tracknumber = gAlice->GetMCApp()->GetCurrentTrackNumber();
	152	Int_t parent=0;
	153	TParticle* part=0;
	154
	155	curVolName = gMC->CurrentVolName();
	156	if(curVolName.Contains(vn) \|\| curVolName.Contains("SCX")) { // We are in a scintillator layer; SCX for 3X3
	157
	158	if( ((depositedEnergy = gMC->Edep()) > 0.) && (gMC->TrackTime() < fTimeCut)){// Track is inside a scintillator and deposits some energy
	159	// Info("StepManager "," entry %i DE %f",++ientry, depositedEnergy); // for testing
	160	if (fCurPrimary==-1)
	161	fCurPrimary=gAlice->GetMCApp()->GetPrimary(tracknumber);
	162
	163	if (fCurParent==-1 \|\| tracknumber != fCurTrack) {
	164	// Check parentage
	165	parent=tracknumber;
	166
	167	if (fCurParent != -1) {
	168	while (parent != fCurParent && parent != -1) {
	169	//TParticle *part=gAlice->GetMCApp()->Particle(parent);
	170	part=gAlice->GetMCApp()->Particle(parent);
	171	parent=part->GetFirstMother();
	172	}
	173	}
	174	if (fCurParent==-1 \|\| parent==-1) {
	175	//Int_t parent=tracknumber;
	176	//TParticle *part=gAlice->GetMCApp()->Particle(parent);
	177	parent=tracknumber;
	178	part=gAlice->GetMCApp()->Particle(parent);
	179	while (parent != -1 && fGeometry->IsInEMCAL(part->Vx(),part->Vy(),part->Vz())) {
	180	parent=part->GetFirstMother();
	181	if (parent!=-1)
	182	part=gAlice->GetMCApp()->Particle(parent);
	183	}
	184	fCurParent=parent;
	185	if (fCurParent==-1)
	186	Error("StepManager","Cannot find parent");
	187	else {
	188	//TParticle *part=gAlice->GetMCApp()->Particle(fCurParent);
	189	part=gAlice->GetMCApp()->Particle(fCurParent);
	190	ienergy = part->Energy();
	191
	192	//Add reference to parent in TR tree.
	193	AddTrackReference(tracknumber, AliTrackReference::kEMCAL);
	194
	195	}
	196	while (parent != -1) {
	197	part=gAlice->GetMCApp()->Particle(parent);
	198	part->SetBit(kKeepBit);
	199	parent=part->GetFirstMother();
	200	}
	201	}
	202	fCurTrack=tracknumber;
	203	}
	204	gMC->TrackPosition(pos);
	205	xyzte[0] = pos[0];
	206	xyzte[1] = pos[1];
	207	xyzte[2] = pos[2];
	208	xyzte[3] = gMC->TrackTime() ;
	209
	210	gMC->TrackMomentum(mom);
	211	pmom[0] = mom[0];
	212	pmom[1] = mom[1];
	213	pmom[2] = mom[2];
	214	pmom[3] = mom[3];
	215
	216	// if(ientry%200 > 0) return; // testing
	217	supModuleNumber = moduleNumber = yNumber = xNumber = absid = 0;
	218	if(keyGeom >= 1) { // TRD1 case now
	219	gMC->CurrentVolOffID(4, supModuleNumber);
	220	gMC->CurrentVolOffID(3, moduleNumber);
	221	gMC->CurrentVolOffID(1, yNumber);
	222	gMC->CurrentVolOffID(0, xNumber); // really x number now
	223	if(strcmp(gMC->CurrentVolOffName(4),"SM10")==0) supModuleNumber += 10; // 13-oct-05
	224	if(strcmp(gMC->CurrentVolOffName(4),"SM3rd")==0) supModuleNumber += 10; // 1-feb-12
	225	// Nov 10,2006
	226	if(strcmp(gMC->CurrentVolOffName(0),vn) != 0) { // 3X3 case
	227	if (strcmp(gMC->CurrentVolOffName(0),"SCX1")==0) xNumber=1;
	228	else if(strcmp(gMC->CurrentVolOffName(0),"SCX2")==0) xNumber=2;
	229	else if(strcmp(gMC->CurrentVolOffName(0),"SCX3")==0) xNumber=3;
	230	else Fatal("StepManager()", "Wrong name of sensitive volume in 3X3 case : %s ", gMC->CurrentVolOffName(0));
	231	}
	232	} else {
	233	gMC->CurrentVolOffID(5, supModuleNumber);
	234	gMC->CurrentVolOffID(4, moduleNumber);
	235	gMC->CurrentVolOffID(1, yNumber);
	236	gMC->CurrentVolOffID(0, xNumber);
	237	if (strcmp(gMC->CurrentVolOffName(5),"SMOP")==0) supModuleNumber = nSMOP[supModuleNumber-1];
	238	else if(strcmp(gMC->CurrentVolOffName(5),"SMON")==0) supModuleNumber = nSMON[supModuleNumber-1];
	239	else assert(0); // something wrong
	240	}
	241
	242	// Due to problem with index ordering conventions the calcultation of absid is no more like this:
	243	//absid = fGeometry->GetAbsCellId(smNumber, moduleNumber-1, yNumber-1, xNumber-1);
	244
	245	//Swap A side in Phi and C side in Eta due to wrong indexing.
	246	Int_t iphi = -1;
	247	Int_t ieta = -1;
	248	Int_t smNumber = supModuleNumber-1;
	249	Int_t smType = 1;
	250	fGeometry->GetCellPhiEtaIndexInSModule(smNumber,moduleNumber-1,yNumber-1,xNumber-1, iphi, ieta);
	251	if (smNumber%2 == 0) {
	252	ieta = ((fGeometry->GetCentersOfCellsEtaDir()).GetSize()-1)-ieta;// 47-ieta, revert the ordering on A side in order to keep convention.
	253	}
	254	else {
	255	if(smNumber >= 10 && strcmp(gMC->CurrentVolOffName(4),"SM10")==0) smType = 2 ; //half supermodule. previous design/idea
	256	if(smNumber >= 10 && strcmp(gMC->CurrentVolOffName(4),"SM3rd")==0) smType = 3 ; //one third (installed in 2012) supermodule
	257	iphi= ((fGeometry->GetCentersOfCellsPhiDir()).GetSize()/smType-1)-iphi;//23-iphi, revert the ordering on C side in order to keep convention.
	258	}
	259
	260	//Once we know the indexes, calculate the absolute ID
	261	absid = fGeometry->GetAbsCellIdFromCellIndexes(smNumber, iphi, ieta);
	262
	263	if (absid < 0) {
	264	printf(" supModuleNumber %i : moduleNumber %i : yNumber %i : xNumber %i \n",
	265	supModuleNumber, moduleNumber, yNumber, xNumber);
	266	Fatal("StepManager()", "Wrong id : %i ", absid) ;
	267	}
	268
	269	Float_t lightYield = depositedEnergy ;
	270	// Apply Birk's law (copied from G3BIRK)
	271
	272	if (gMC->TrackCharge()!=0) { // Check
	273	Float_t birkC1Mod = 0;
	274	if (fBirkC0==1){ // Apply correction for higher charge states
	275	if (TMath::Abs(gMC->TrackCharge())>=2) birkC1Mod = fBirkC1*7.2/12.6;
	276	else birkC1Mod = fBirkC1;
	277	}
	278
	279	Float_t dedxcm=0.;
	280	if (gMC->TrackStep()>0) dedxcm=1000.*gMC->Edep()/gMC->TrackStep();
	281	else dedxcm=0;
	282	lightYield=lightYield/(1.+birkC1Moddedxcm+fBirkC2dedxcm*dedxcm);
	283	}
	284
	285	// use sampling fraction to get original energy --HG
	286	// xyzte[4] = lightYield * fGeometry->GetSampling();
	287	xyzte[4] = lightYield; // 15-dec-04
	288
	289	if (gDebug == -2)
	290	printf("#sm %2i #m %3i #x %1i #z %1i -> absid %i : xyzte[4] = %f\n",
	291	supModuleNumber,moduleNumber,yNumber,xNumber,absid, xyzte[4]);
	292
	293	AddHit(fIshunt, fCurPrimary,tracknumber, fCurParent, ienergy, absid, xyzte, pmom);
	294	} // there is deposited energy
	295	}
	296	}