-/////////////////////////////////////////////////////////
-// Manager and hits classes for set:PHOS version 1 //
-/////////////////////////////////////////////////////////
-
+/**************************************************************************
+ * 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. *
+ **************************************************************************/
+
+/* $Id$ */
+
+//_________________________________________________________________________
+// Implementation version v1 of PHOS Manager class
+//---
+// Layout EMC + PPSD has name GPS2:
+// Produces cumulated hits
+//---
+// Layout EMC + CPV has name IHEP:
+// Produces hits for CPV, cumulated hits
+//---
+// Layout EMC + CPV + PPSD has name GPS:
+// Produces hits for CPV, cumulated hits
+//---
+//*-- Author: Yves Schutz (SUBATECH)
+
+
// --- ROOT system ---
-#include "TH1.h"
-#include "TRandom.h"
-#include "TFile.h"
-#include "TTree.h"
+
#include "TBRIK.h"
#include "TNode.h"
+#include "TRandom.h"
+#include "TTree.h"
+
+
+// --- Standard library ---
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <strstream.h>
+
+// --- AliRoot header files ---
-// --- galice header files ---
#include "AliPHOSv1.h"
+#include "AliPHOSHit.h"
+#include "AliPHOSDigit.h"
+#include "AliPHOSReconstructioner.h"
#include "AliRun.h"
-#include "TGeant3.h"
+#include "AliConst.h"
+#include "AliMC.h"
ClassImp(AliPHOSv1)
-//______________________________________________________________________________
+//____________________________________________________________________________
+AliPHOSv1::AliPHOSv1()
+{
+ // ctor
+
+ fReconstructioner = 0;
+ fTrackSegmentMaker = 0;
+}
-AliPHOSv1::AliPHOSv1() : AliPHOS()
+//____________________________________________________________________________
+AliPHOSv1::AliPHOSv1(const char *name, const char *title):
+AliPHOSv0(name,title)
{
+ // ctor : title is used to identify the layout
+ // GPS2 = 5 modules (EMC + PPSD)
+ // IHEP = 5 modules (EMC + CPV )
+ // MIXT = 4 modules (EMC + CPV ) and 1 module (EMC + PPSD)
+ //
+ // We store hits :
+ // - fHits (the "normal" one), which retains the hits associated with
+ // the current primary particle being tracked
+ // (this array is reset after each primary has been tracked).
+ //
+
+ fPinElectronicNoise = 0.010 ;
+ fDigitThreshold = 0.01 ; // 1 GeV
+ fDigitizeA= 0. ;
+ fDigitizeB = 10000000. ;
+
+
+ // We do not want to save in TreeH the raw hits
+ // But save the cumulated hits instead (need to create the branch myself)
+ // It is put in the Digit Tree because the TreeH is filled after each primary
+ // and the TreeD at the end of the event (branch is set in FinishEvent() ).
+
+ fHits= new TClonesArray("AliPHOSHit",1000) ;
+
+ fNhits = 0 ;
+
+ fReconstructioner = 0;
+ fTrackSegmentMaker = 0;
+
+ fIshunt = 1 ; // All hits are associated with primary particles
+
}
-
-//______________________________________________________________________________
-AliPHOSv1::AliPHOSv1(const char *name, const char *title)
- : AliPHOS(name, title)
+//____________________________________________________________________________
+AliPHOSv1::AliPHOSv1(AliPHOSReconstructioner * Reconstructioner, const char *name, const char *title):
+ AliPHOSv0(name,title)
{
-}
+ // ctor : title is used to identify the layout
+ // GPS2 = 5 modules (EMC + PPSD)
+
+ fPinElectronicNoise = 0.010 ;
+
+ // We do not want to save in TreeH the raw hits
+
+ fDigits = 0 ;
+ fHits= new TClonesArray("AliPHOSHit",1000) ;
+
+ fNhits = 0 ;
+
+ fIshunt = 1 ; // All hits are associated with primary particles
+
+ // gets an instance of the geometry parameters class
+ fGeom = AliPHOSGeometry::GetInstance(title, "") ;
+
+ if (fGeom->IsInitialized() )
+ cout << "AliPHOS" << Version() << " : PHOS geometry intialized for " << fGeom->GetName() << endl ;
+ else
+ cout << "AliPHOS" << Version() << " : PHOS geometry initialization failed !" << endl ;
+
+ // Defining the PHOS Reconstructioner
-//___________________________________________
-void AliPHOSv1::CreateGeometry()
+ fReconstructioner = Reconstructioner ;
+
+}
+
+//____________________________________________________________________________
+AliPHOSv1::~AliPHOSv1()
{
+ // dtor
- AliMC* pMC = AliMC::GetMC();
+ if ( fHits) {
+ fHits->Delete() ;
+ delete fHits ;
+ fHits = 0 ;
+ }
- AliPHOS *PHOS_tmp = (AliPHOS*)gAlice->GetModule("PHOS");
- if( NULL==PHOS_tmp )
- {
- printf("There isn't PHOS detector!\n");
- return;
+ if ( fSDigits) {
+ fSDigits->Delete() ;
+ delete fSDigits ;
+ fSDigits = 0 ;
}
-// AliPHOS &PHOS = *PHOS_tmp;
-
- //////////////////////////////////////////////////////////////////////////////
-
- Int_t rotation_matrix_number=0;
- Float_t par[11],
- x,y,z;
-
- const float cell_length = GetCrystalLength()+GetAirThickness()+GetWrapThickness()+GetPIN_Length(),
- cell_side_size = GetCrystalSideSize()+2*GetAirThickness()+2*GetWrapThickness(),
-// cell_angle = 180/M_PI * 2 * atan(cell_side_size/2 / GetRadius()), // radians
- cradle_thikness = cell_length + GetCPV_Thickness() + GetCPV_PHOS_Distance(),
- distance_to_CPV = GetRadius() - GetCPV_Thickness() - GetCPV_PHOS_Distance();
-
- //////////////////////////////////////////////////////////////////////////////
- // CELL volume and subvolumes creation
- //////////////////////////////////////////////////////////////////////////////
-
- par[0] = GetCrystalSideSize()/2 + GetWrapThickness();
- par[1] = GetCrystalSideSize()/2 + GetWrapThickness();
- par[2] = GetCrystalLength() /2 + GetWrapThickness()/2;
- pMC->Gsvolu("WRAP","BOX ",GetPHOS_IDTMED_Tyvek(),par,3);
-
- par[0] = GetCrystalSideSize()/2;
- par[1] = GetCrystalSideSize()/2;
- par[2] = GetCrystalLength()/2;
- pMC->Gsvolu("CRST","BOX ",GetPHOS_IDTMED_PbWO4(),par,3);
-
- // PIN
- par[0] = GetPIN_SideSize()/2;
- par[1] = GetPIN_SideSize()/2;
- par[2] = GetPIN_Length()/2;
- pMC->Gsvolu("PIN ","BOX ",GetPHOS_IDTMED_PIN(),par,3);
-
- //////////////////////////////////////////////////////////////////////////////
- // CRADLE,CPV creation.
- //////////////////////////////////////////////////////////////////////////////
-
- par[0] = cell_side_size/2 * GetNz();
- par[1] = cell_side_size/2 * GetNphi();
- par[2] = cradle_thikness/2;
- pMC->Gsvolu("PHOS","BOX ",GetPHOS_IDTMED_AIR(),par,3);
-
-//par[0] : the same as above
-//par[1] : the same as above
- par[2] = GetCPV_Thickness()/2;
- pMC->Gsvolu("CPV ","BOX ",GetPHOS_IDTMED_CPV(),par,3);
-
- x = 0;
- y = 0;
- z = (cell_length+GetCPV_PHOS_Distance())/2;
- pMC->Gspos("CPV ",1,"PHOS",x,y,z,0,"ONLY");
-
- par[0] = cell_side_size/2 * GetNz();
- par[1] = cell_side_size/2 * GetNphi();
- par[2] = cell_length/2;
- pMC->Gsvolu("CRS0","BOX ",GetPHOS_IDTMED_AIR(),par,3);
-
- x = 0;
- y = 0;
- z = -(cradle_thikness-cell_length)/2;
- pMC->Gspos("CRS0",1,"PHOS",x,y,z,0,"ONLY");
-
- pMC->Gsdvn("CRS1","CRS0",GetNphi(),2);
- pMC->Gsdvn("CELL","CRS1",GetNz() ,1);
-
- //////////////////////////////////////////////////////////////////////////////
- // CELL creation
- //////////////////////////////////////////////////////////////////////////////
-
- x = 0;
- y = 0;
- z = -GetWrapThickness()/2;
- pMC->Gspos("CRST",1,"WRAP",x,y,z,0,"ONLY");
-
- x = 0;
- y = 0;
- z = GetPIN_Length()/2;
- pMC->Gspos("WRAP",1,"CELL",x,y,z,0,"ONLY");
-
- x = 0;
- y = 0;
- z = -GetCrystalLength()/2-GetWrapThickness()/2;
- pMC->Gspos("PIN ",1,"CELL",x,y,z,0,"ONLY");
-
- //////////////////////////////////////////////////////////////////////////////
- // CELL has been created.
- //////////////////////////////////////////////////////////////////////////////
-
-// int n=0;
-// z = -(GetCPV_Thickness()+GetCPV_PHOS_Distance())/2;
-//
-// for( int iy=0; iy<GetNphi(); iy++ )
-// {
-// y = (iy-(GetNphi()-1)/2.)*cell_side_size;
-// for( int ix=0; ix<GetNz(); ix++ )
-// {
-// x = (ix-(GetNz()-1)/2.)*cell_side_size;
-// pMC->Gspos("CELL",++n,"PHOS",x,y,z,0,"ONLY");
-// }
-// }
-
- //////////////////////////////////////////////////////////////////////////////
- // End of CRADLE creation.
- //////////////////////////////////////////////////////////////////////////////
-
-
- //////////////////////////////////////////////////////////////////////////////
- // PHOS creation
- //////////////////////////////////////////////////////////////////////////////
-
- for( int i=0; i<GetCradlesAmount(); i++ )
- {
- float c = distance_to_CPV, // Distance to CPV
- l = cell_side_size*GetNphi()/2, // Cradle half size around beam (for rect. geom.)
- cradle_angle = 360/M_PI*atan(l/c),
- cradle_angle_pos = -90+(i-(GetCradlesAmount()-1)/2.) * (cradle_angle+GetAngleBetweenCradles());
- // Cradles are numerated in clock reversed order. (general way of angle increment)
-
- float r = GetRadius() + cradle_thikness/2;
- x = r*cos(cradle_angle_pos*M_PI/180);
- y = r*sin(cradle_angle_pos*M_PI/180);
- z = 0;
- AliMatrix(rotation_matrix_number, 0,0 , 90,90+cradle_angle_pos , 90,180+cradle_angle_pos);
- pMC->Gspos("PHOS",i+1,"ALIC",x,y,z,rotation_matrix_number,"ONLY");
-
- GetCradleAngle(i) = cradle_angle_pos;
-//
-// int n = PHOS.fCradles->GetEntries();
-// PHOS.fCradles->Add(new AliPHOSCradle( 1, // geometry.
-// GetCrystalSideSize (),
-// GetCrystalLength (),
-// GetWrapThickness (),
-// GetAirThickness (),
-// GetPIN_SideSize (),
-// GetPIN_Length (),
-// GetRadius (),
-// GetCPV_Thickness (),
-// GetCPV_PHOS_Distance (),
-// GetNz (),
-// GetNphi (),
-// cradle_angle_pos ));
-//
-// if( n+1 != PHOS.fCradles->GetEntries() ||
-// NULL == PHOS.fCradles->At(n) )
-// {
-// cout << " Can not create or add AliPHOSCradle.\n";
-// exit(1);
-// }
+
+ if ( fDigits) {
+ fDigits->Delete() ;
+ delete fDigits ;
+ fDigits = 0 ;
}
- AddPHOSCradles();
- //////////////////////////////////////////////////////////////////////////////
- // All is done.
- // Print some information.
- //////////////////////////////////////////////////////////////////////////////
+ if ( fEmcRecPoints ) {
+ fEmcRecPoints->Delete() ;
+ delete fEmcRecPoints ;
+ fEmcRecPoints = 0 ;
+ }
+
+ if ( fPpsdRecPoints ) {
+ fPpsdRecPoints->Delete() ;
+ delete fPpsdRecPoints ;
+ fPpsdRecPoints = 0 ;
+ }
+
+ if ( fTrackSegments ) {
+ fTrackSegments->Delete() ;
+ delete fTrackSegments ;
+ fTrackSegments = 0 ;
+ }
+
}
-void AliPHOSv1::StepManager()
+//____________________________________________________________________________
+void AliPHOSv1::AddHit(Int_t shunt, Int_t primary, Int_t tracknumber, Int_t Id, Float_t * hits, Int_t trackpid, TLorentzVector p, Float_t * lpos)
{
- static Bool_t inwold=0; // Status of previous ctrak->inwvol
- AliMC *MC = AliMC::GetMC();
- Int_t copy;
-
-// cout << form("PHOS STEP: %d %d %d %d\n",
-// MC->GetMedium(),cvolu->nlevel,ctrak->inwvol,inwold);
-
- int cradle_number, cell_Z, cell_Phi; // Variables that describe cell position.
-
- if( MC->GetMedium() == GetPHOS_IDTMED_PIN() && (MC->TrackInside() || MC->TrackExiting()==2) && inwold && MC->TrackCharge()!=0 )
- {
- // GEANT particle just have entered into PIN diode.
-
- AliPHOS &PHOS = *(AliPHOS*)gAlice->GetModule("PHOS");
-
- MC->CurrentVolOff(4,0,copy);
- cradle_number = copy-1;
- MC->CurrentVolOff(1,0,copy);
- cell_Z = copy-1;
- MC->CurrentVolOff(2,0,copy);
- cell_Phi = copy-1;
-/*
- cradle_number = cvolu->number[cvolu->nlevel-5]-1;
- cell_Z = cvolu->number[cvolu->nlevel-2]-1;
- cell_Phi = cvolu->number[cvolu->nlevel-3]-1;
-*/
-
- TH2S &h = PHOS.GetCradle(cradle_number).fChargedTracksInPIN;
- h.AddBinContent(h.GetBin(cell_Z,cell_Phi));
+ // Add a hit to the hit list.
+ // A PHOS hit is the sum of all hits in a single crystal
+ // or in a single PPSD gas cell
+
+ Int_t hitCounter ;
+ AliPHOSHit *newHit ;
+ AliPHOSHit *curHit ;
+ Bool_t deja = kFALSE ;
+
+ newHit = new AliPHOSHit(shunt, primary, tracknumber, Id, hits, trackpid, p, lpos) ;
+
+ for ( hitCounter = fNhits-1 ; hitCounter >= 0 && !deja ; hitCounter-- ) {
+ curHit = (AliPHOSHit*) (*fHits)[hitCounter] ;
+ if( *curHit == *newHit ) {
+ *curHit = *curHit + *newHit ;
+ deja = kTRUE ;
+ }
+ }
+
+ if ( !deja ) {
+ new((*fHits)[fNhits]) AliPHOSHit(*newHit) ;
+ fNhits++ ;
+ }
+
+ delete newHit;
+}
+
+//____________________________________________________________________________
+void AliPHOSv1::Hits2SDigits(){
+ //Collects all hits in the same active volume into digit
+
+ Int_t i ;
+ Int_t j ;
+ AliPHOSHit * hit ;
+ AliPHOSDigit * newdigit ;
+ AliPHOSDigit * curdigit ;
+ Bool_t deja = kFALSE ;
+
+
+ Int_t itrack ;
+ for (itrack=0; itrack<gAlice->GetNtrack(); itrack++){
+
+ //=========== Get the Hits Tree for the Primary track itrack
+ gAlice->ResetHits();
+ gAlice->TreeH()->GetEvent(itrack);
+
+
+ for ( i = 0 ; i < fHits->GetEntries() ; i++ ) {
+ hit = (AliPHOSHit*)fHits->At(i) ;
+
+ // Assign primary number only if contribution is significant
+ if( hit->GetEnergy() > fDigitThreshold)
+ newdigit = new AliPHOSDigit( hit->GetPrimary(), hit->GetId(), Digitize( hit->GetEnergy() ) ) ;
+ else
+ newdigit = new AliPHOSDigit( -1 , hit->GetId(), Digitize( hit->GetEnergy() ) ) ;
+ deja =kFALSE ;
+
+ for ( j = 0 ; j < fnSdigits ; j++) {
+ curdigit = (AliPHOSDigit*) fSDigits->At(j) ;
+ if ( *curdigit == *newdigit) {
+ *curdigit = *curdigit + *newdigit ;
+ deja = kTRUE ;
+ }
+ }
+
+ if ( !deja ) {
+ new((*fSDigits)[fnSdigits]) AliPHOSDigit(* newdigit) ;
+ fnSdigits++ ;
+ }
+
+ delete newdigit ;
+ }
+
+ } // loop over tracks
+
+ fSDigits->Sort() ;
+
+ fnSdigits = fSDigits->GetEntries() ;
+ fSDigits->Expand(fnSdigits) ;
+
+ for (i = 0 ; i < fnSdigits ; i++) {
+ AliPHOSDigit * digit = (AliPHOSDigit *) fSDigits->At(i) ;
+ digit->SetIndexInList(i) ;
+ }
+
+ gAlice->TreeS()->Fill() ;
+ gAlice->TreeS()->Write(0,TObject::kOverwrite) ;
+
+
+}
+//____________________________________________________________________________
+void AliPHOSv1::SDigits2Digits(){
+ //Adds noise to the summable digits and removes everething below thresholds
+ //Note, that sDigits should be SORTED in accordance with abs ID.
+
+
+ gAlice->TreeS()->GetEvent(0) ;
+
+ // First calculate noise induced by the PIN diode of the PbWO crystals
+ Int_t iCurSDigit = 0 ;
+
+ //we assume, that there is al least one EMC digit...
+ if(fSDigits->GetEntries() == 0) {
+ cout << "PHOS::SDigits2Digits> No SDigits !!! Do not produce Digits " << endl ;
+ return ;
}
- //////////////////////////////////////////////////////////////////////////////
-
- if( MC->GetMedium() == GetPHOS_IDTMED_PbWO4() ) //&& gckine_.CHARGE )
- {
- // GEANT particle into crystal.
-
- AliPHOS &PHOS = *(AliPHOS*)gAlice->GetModule("PHOS");
-
- MC->CurrentVolOff(5,0,copy);
- cradle_number = copy-1;
- MC->CurrentVolOff(2,0,copy);
- cell_Z = copy-1;
- MC->CurrentVolOff(3,0,copy);
- cell_Phi = copy-1;
-/*
- cradle_number = cvolu->number[cvolu->nlevel-6]-1;
- cell_Z = cvolu->number[cvolu->nlevel-3]-1;
- cell_Phi = cvolu->number[cvolu->nlevel-4]-1;
-*/
- TH2F &h = PHOS.GetCradle(cradle_number).fCellEnergy;
- h.AddBinContent(h.GetBin(cell_Z,cell_Phi),MC->Edep());
+ Int_t idCurSDigit = ((AliPHOSDigit *)fSDigits->At(0))->GetId() ;
+
+ Int_t absID ;
+ for(absID = 1; absID < fGeom->GetNModules()*fGeom->GetNPhi()*fGeom->GetNZ(); absID++){
+ Float_t noise = gRandom->Gaus(0., fPinElectronicNoise) ;
+ if(absID < idCurSDigit ){
+ if(noise >fDigitThreshold ){
+ new((*fDigits)[fNdigits]) AliPHOSDigit( -1,absID,Digitize(noise) ) ;
+ fNdigits++ ;
+ }
+ }
+ else{ //add noise and may be remove the true hit
+ Float_t signal = noise + Calibrate(((AliPHOSDigit *)fSDigits->At(iCurSDigit))->GetAmp()) ;
+ if( signal >fDigitThreshold ){
+ AliPHOSDigit * digit = (AliPHOSDigit*) fSDigits->At(iCurSDigit) ;
+ new((*fDigits)[fNdigits]) AliPHOSDigit( *digit ) ;
+ ((AliPHOSDigit *)fDigits->At(fNdigits))->SetAmp(Digitize(signal));
+ fNdigits++ ;
+ }
+
+ if(iCurSDigit < fSDigits->GetEntries()-1){
+ iCurSDigit++ ;
+ idCurSDigit = ((AliPHOSDigit*)fSDigits->At(iCurSDigit))->GetId() ;
+ }
+ else
+ idCurSDigit = 10000000; //no real hits left
+ }
+
+ }
+
+ //remove PPSD/CPV digits below thresholds
+ Int_t idigit ;
+ for(idigit = iCurSDigit; idigit < fSDigits->GetEntries() ; idigit++){ //loop over CPV/PPSD digits
+
+ AliPHOSDigit * digit = (AliPHOSDigit *) fSDigits->At(idigit) ;
+ Float_t ene = Calibrate(digit->GetAmp()) ;
+
+ Int_t relid[4] ;
+ fGeom->AbsToRelNumbering(digit->GetId(), relid) ;
+ if ( relid[0] > fGeom->GetNCPVModules() ){ //ppsd
+ if ( ( (relid[1] > 0) && (ene > fPpsdEnergyThreshold)) || //PPSD digit
+ ( (relid[1] < 0) && (ene > fCpvEnergyThreshold ) ) ) //CPV digit
+ new((*fDigits)[fNdigits]) AliPHOSDigit( *digit ) ;
+ fNdigits++ ;
+ }
+ }
+
+ fDigits->Compress() ;
+
+ fNdigits = fDigits->GetEntries() ;
+ fDigits->Expand(fNdigits) ;
+
+ Int_t i ;
+ for (i = 0 ; i < fNdigits ; i++) {
+ AliPHOSDigit * digit = (AliPHOSDigit *) fDigits->At(i) ;
+ digit->SetIndexInList(i) ;
}
- //////////////////////////////////////////////////////////////////////////////
+ gAlice->TreeD()->Fill() ;
+
+ gAlice->TreeD()->Write(0,TObject::kOverwrite) ;
+
+}
+
+//___________________________________________________________________________
+void AliPHOSv1::MakeBranch(Option_t* opt, char *file)
+{
+
- if( MC->GetMedium()==GetPHOS_IDTMED_CPV() && (MC->TrackInside() || MC->TrackExiting()) && inwold )
- {
- // GEANT particle just have entered into CPV detector.
+ char *cH ;
+ // Create new branche in the current Root Tree in the digit Tree
+ AliDetector::MakeBranch(opt) ;
- AliPHOS &PHOS = *(AliPHOS*)gAlice->GetModule("PHOS");
- MC->CurrentVolOff(1,0,cradle_number);
- cradle_number--;
-// cradle_number = cvolu->number[cvolu->nlevel-2]-1;
+ cH = strstr(opt,"S");
+ //Create a branch for SDigits
+ if( cH ){
+ char branchname[20];
+ sprintf(branchname,"%s",GetName());
+ if(fSDigits)
+ fSDigits->Clear();
+ else
+ fSDigits = new TClonesArray("AliPHOSDigit",1000);
- // Save CPV x,y hits position of charged particles.
+ fnSdigits = 0 ;
+ gAlice->MakeBranchInTree(gAlice->TreeS(),branchname,&fSDigits,fBufferSize,file);
+ }
+
+ cH = strstr(opt,"D");
+ //Create a branch for Digits
+ if( cH ){
+ char branchname[20];
+ sprintf(branchname,"%s",GetName());
+
+ if(fDigits)
+ fDigits->Clear();
+ else
+ fDigits = new TClonesArray("AliPHOSDigit",1000);
+ fNdigits = 0 ;
+
+ gAlice->MakeBranchInTree(gAlice->TreeD(),branchname,&fDigits,fBufferSize,file);
+ }
- AliPHOSCradle &cradle = PHOS.GetCradle(cradle_number);
+ cH = strstr(opt,"R");
+ //Create a branch for Reconstruction
+ if( cH ){
+ char branchname[20];
+
+ Int_t splitlevel = 0 ;
+
+ if(fEmcRecPoints)
+ fEmcRecPoints->Delete() ;
+ else
+ fEmcRecPoints = new TObjArray(100) ;
+
+ if ( fEmcRecPoints && gAlice->TreeR() ) {
+ sprintf(branchname,"%sEmcRP",GetName()) ;
+ gAlice->TreeR()->Branch(branchname, "TObjArray", &fEmcRecPoints, fBufferSize, splitlevel) ;
+ }
+
+ if(fPpsdRecPoints)
+ fPpsdRecPoints->Delete() ;
+ else
+ fPpsdRecPoints = new TObjArray(100) ;
+
+ if ( fPpsdRecPoints && gAlice->TreeR() ) {
+ sprintf(branchname,"%sPpsdRP",GetName()) ;
+ gAlice->TreeR()->Branch(branchname, "TObjArray", &fPpsdRecPoints, fBufferSize, splitlevel) ;
+ }
+
+ if(fTrackSegments)
+ fTrackSegments->Delete() ;
+ else
+ fTrackSegments = new TClonesArray("AliPHOSTrackSegment",100) ;
+
+ if ( fTrackSegments && gAlice->TreeR() ) {
+ sprintf(branchname,"%sTS",GetName()) ;
+ gAlice->TreeR()->Branch(branchname, &fTrackSegments, fBufferSize) ;
+ }
+
+ if(fRecParticles)
+ fRecParticles->Delete() ;
+ else
+ fRecParticles = new TClonesArray("AliPHOSRecParticle",100) ;
+
+ if ( fRecParticles && gAlice->TreeR() ) {
+ sprintf(branchname,"%sRP",GetName()) ;
+ gAlice->TreeR()->Branch(branchname, &fRecParticles, fBufferSize) ;
+ }
+
+ }
- Float_t xyz[3];
- MC->TrackPosition(xyz);
- Hep3Vector p(xyz[0],xyz[1],xyz[2]),v;
+}
- float x,y,l;
- float R = cradle.GetRadius() - cradle.GetCPV_PHOS_Distance() - cradle.GetCPV_Thikness();
- cradle.GetXY(p,v,R,x,y,l);
- if( PHOS.fDebugLevel>0 )
- if( l<0 )
- printf("PHOS_STEP: warning: negative distance to CPV!! %f\n", l);
+//_____________________________________________________________________________
+void AliPHOSv1::Reconstruction(AliPHOSReconstructioner * Reconstructioner)
+{
+ // 1. Reinitializes the existing RecPoint, TrackSegment, and RecParticles Lists and
+ // 2. Creates TreeR with a branch for each list
+ // 3. Steers the reconstruction processes
+ // 4. Saves the 3 lists in TreeR
+ // 5. Write the Tree to File
+
+ fReconstructioner = Reconstructioner ;
+
+ // 1.
+
+ // gAlice->MakeTree("R") ;
+
+ MakeBranch("R") ;
+
+ // 3.
+
+ fReconstructioner->Make(fDigits, fEmcRecPoints, fPpsdRecPoints, fTrackSegments, fRecParticles);
+
+ printf("Reconstruction: %d %d %d %d\n",
+ fEmcRecPoints->GetEntries(),fPpsdRecPoints->GetEntries(),
+ fTrackSegments->GetEntries(),fRecParticles->GetEntries());
+
+ // 4. Expand or Shrink the arrays to the proper size
+
+ Int_t size ;
+
+ size = fEmcRecPoints->GetEntries() ;
+ fEmcRecPoints->Expand(size) ;
+
+ size = fPpsdRecPoints->GetEntries() ;
+ fPpsdRecPoints->Expand(size) ;
+
+ size = fTrackSegments->GetEntries() ;
+ fTrackSegments->Expand(size) ;
+
+ size = fRecParticles->GetEntries() ;
+ fRecParticles->Expand(size) ;
+
+ gAlice->TreeR()->Fill() ;
+ // 5.
+
+ gAlice->TreeR()->Write(0,TObject::kOverwrite) ;
+
+ // Deleting reconstructed objects
+ ResetReconstruction();
+
+}
- // Store current particle in the list of Cradle particles.
- Float_t pmom[4];
- MC->TrackMomentum(pmom);
- float Px = pmom[0] * pmom[3],
- Py = pmom[1] * pmom[3],
- Pz = pmom[2] * pmom[3];
+//____________________________________________________________________________
+void AliPHOSv1::ResetReconstruction()
+{
+ // Deleting reconstructed objects
-// TClonesArray &P=cradle.GetParticles();
-// new( P[P.GetEntries()] ) AliPHOSgamma(x,0,y,0,ctrak->getot,0,Px,Py,Pz);
- cradle.GetParticles().Add(new AliPHOSgamma(x,0,y,0,MC->Etot(),0,Px,Py,Pz));
+ if ( fEmcRecPoints ) fEmcRecPoints ->Delete();
+ if ( fPpsdRecPoints ) fPpsdRecPoints->Delete();
+ if ( fTrackSegments ) fTrackSegments->Delete();
+ if ( fRecParticles ) fRecParticles ->Delete();
+
+}
+
+//____________________________________________________________________________
+
+void AliPHOSv1::StepManager(void)
+{
+ // Accumulates hits as long as the track stays in a single crystal or PPSD gas Cell
+
+ Int_t relid[4] ; // (box, layer, row, column) indices
+ Int_t absid ; // absolute cell ID number
+ Float_t xyze[4]={0,0,0,0} ; // position wrt MRS and energy deposited
+ TLorentzVector pos ; // Lorentz vector of the track current position
+ TLorentzVector pmom ; //momentum of the particle initiated hit
+ Float_t xyd[3]={0,0,0} ; //local posiiton of the entering
+ Bool_t entered = kFALSE ;
+ Int_t copy ;
+
+ Int_t tracknumber = gAlice->CurrentTrack() ;
+ Int_t primary = gAlice->GetPrimary( gAlice->CurrentTrack() );
+ TString name = fGeom->GetName() ;
+ Int_t trackpid = 0 ;
+
+ if( gMC->IsTrackEntering() ){ // create hit with position and momentum of new particle,
+ // but may be without energy deposition
+
+ // Current position of the hit in the local ref. system
+ gMC -> TrackPosition(pos);
+ Float_t xyzm[3], xyzd[3] ;
+ Int_t i;
+ for (i=0; i<3; i++) xyzm[i] = pos[i];
+ gMC -> Gmtod (xyzm, xyzd, 1); // transform coordinate from master to daughter system
+ xyd[0] = xyzd[0];
+ xyd[1] =-xyzd[1];
+ xyd[2] =-xyzd[2];
+
+
+ // Current momentum of the hit's track in the local ref. system
+ gMC -> TrackMomentum(pmom);
+ Float_t pm[3], pd[3];
+ for (i=0; i<3; i++) pm[i] = pmom[i];
+ gMC -> Gmtod (pm, pd, 2); // transform 3-momentum from master to daughter system
+ pmom[0] = pd[0];
+ pmom[1] =-pd[1];
+ pmom[2] =-pd[2];
+
+ trackpid = gMC->TrackPid();
+ entered = kTRUE ; // Mark to create hit even withou energy deposition
- if( MC->TrackCharge()!=0 )
- cradle.AddCPVHit(x,y);
}
- inwold=MC->TrackEntering(); // Save current status of GEANT variable.
+
+ if ( name == "GPS2" || name == "MIXT" ) { // ======> CPV is a GPS' PPSD
+
+ if( gMC->CurrentVolID(copy) == gMC->VolId("GCEL") ) // We are inside a gas cell
+ {
+ gMC->TrackPosition(pos) ;
+ xyze[0] = pos[0] ;
+ xyze[1] = pos[1] ;
+ xyze[2] = pos[2] ;
+ xyze[3] = gMC->Edep() ;
+
+ if ( (xyze[3] != 0) || entered ) { // there is deposited energy or new particle entering PPSD
+ gMC->CurrentVolOffID(5, relid[0]) ; // get the PHOS Module number
+ if ( name == "MIXT" && strcmp(gMC->CurrentVolOffName(5),"PHO1") == 0 ){
+ relid[0] += fGeom->GetNModules() - fGeom->GetNPPSDModules();
+ }
+ gMC->CurrentVolOffID(3, relid[1]) ; // get the Micromegas Module number
+ // 1-> fGeom->GetNumberOfModulesPhi() * fGeom->GetNumberOfModulesZ() upper
+ // > fGeom->GetNumberOfModulesPhi() * fGeom->GetNumberOfModulesZ() lower
+ gMC->CurrentVolOffID(1, relid[2]) ; // get the row number of the cell
+ gMC->CurrentVolID(relid[3]) ; // get the column number
+
+ // get the absolute Id number
+
+ fGeom->RelToAbsNumbering(relid, absid) ;
+
+ // add current hit to the hit list
+ AddHit(fIshunt, primary, tracknumber, absid, xyze, trackpid, pmom, xyd);
+
+
+ } // there is deposited energy
+ } // We are inside the gas of the CPV
+ } // GPS2 configuration
+
+ if ( name == "IHEP" || name == "MIXT" ) { // ======> CPV is a IHEP's one
+
+ // Yuri Kharlov, 28 September 2000
+
+ if( gMC->CurrentVolID(copy) == gMC->VolId("CPVQ") &&
+ entered &&
+ gMC->TrackCharge() != 0) {
+
+ // Digitize the current CPV hit:
+
+ // 1. find pad response and
+
+ Int_t moduleNumber;
+ gMC->CurrentVolOffID(3,moduleNumber);
+ moduleNumber--;
+
+
+ TClonesArray *cpvDigits = new TClonesArray("AliPHOSCPVDigit",0); // array of digits for current hit
+ CPVDigitize(pmom,xyd,moduleNumber,cpvDigits);
+
+ Float_t xmean = 0;
+ Float_t zmean = 0;
+ Float_t qsum = 0;
+ Int_t idigit,ndigits;
+
+ // 2. go through the current digit list and sum digits in pads
+
+ ndigits = cpvDigits->GetEntriesFast();
+ for (idigit=0; idigit<ndigits-1; idigit++) {
+ AliPHOSCPVDigit *cpvDigit1 = (AliPHOSCPVDigit*) cpvDigits->UncheckedAt(idigit);
+ Float_t x1 = cpvDigit1->GetXpad() ;
+ Float_t z1 = cpvDigit1->GetYpad() ;
+ for (Int_t jdigit=idigit+1; jdigit<ndigits; jdigit++) {
+ AliPHOSCPVDigit *cpvDigit2 = (AliPHOSCPVDigit*) cpvDigits->UncheckedAt(jdigit);
+ Float_t x2 = cpvDigit2->GetXpad() ;
+ Float_t z2 = cpvDigit2->GetYpad() ;
+ if (x1==x2 && z1==z2) {
+ Float_t qsum = cpvDigit1->GetQpad() + cpvDigit2->GetQpad() ;
+ cpvDigit2->SetQpad(qsum) ;
+ cpvDigits->RemoveAt(idigit) ;
+ }
+ }
+ }
+ cpvDigits->Compress() ;
+
+ // 3. add digits to temporary hit list fTmpHits
+
+ ndigits = cpvDigits->GetEntriesFast();
+ for (idigit=0; idigit<ndigits; idigit++) {
+ AliPHOSCPVDigit *cpvDigit = (AliPHOSCPVDigit*) cpvDigits->UncheckedAt(idigit);
+ relid[0] = moduleNumber + 1 ; // CPV (or PHOS) module number
+ relid[1] =-1 ; // means CPV
+ relid[2] = cpvDigit->GetXpad() ; // column number of a pad
+ relid[3] = cpvDigit->GetYpad() ; // row number of a pad
+
+ // get the absolute Id number
+ fGeom->RelToAbsNumbering(relid, absid) ;
+
+ // add current digit to the temporary hit list
+ xyze[0] = 0. ;
+ xyze[1] = 0. ;
+ xyze[2] = 0. ;
+ xyze[3] = cpvDigit->GetQpad() ; // amplitude in a pad
+ primary = -1; // No need in primary for CPV
+ AddHit(fIshunt, primary, tracknumber, absid, xyze, trackpid, pmom, xyd);
+
+ if (cpvDigit->GetQpad() > 0.02) {
+ xmean += cpvDigit->GetQpad() * (cpvDigit->GetXpad() + 0.5);
+ zmean += cpvDigit->GetQpad() * (cpvDigit->GetYpad() + 0.5);
+ qsum += cpvDigit->GetQpad();
+ }
+ }
+ delete cpvDigits;
+ }
+ } // end of IHEP configuration
+
+
+ if(gMC->CurrentVolID(copy) == gMC->VolId("PXTL") ) { // We are inside a PBWO crystal
+ gMC->TrackPosition(pos) ;
+ xyze[0] = pos[0] ;
+ xyze[1] = pos[1] ;
+ xyze[2] = pos[2] ;
+ xyze[3] = gMC->Edep() ;
+
+
+ if ( (xyze[3] != 0) || entered ) { // Track is inside the crystal and deposits some energy or just entered
+
+ gMC->CurrentVolOffID(10, relid[0]) ; // get the PHOS module number ;
+
+ if ( name == "MIXT" && strcmp(gMC->CurrentVolOffName(10),"PHO1") == 0 )
+ relid[0] += fGeom->GetNModules() - fGeom->GetNPPSDModules();
+
+ relid[1] = 0 ; // means PBW04
+ gMC->CurrentVolOffID(4, relid[2]) ; // get the row number inside the module
+ gMC->CurrentVolOffID(3, relid[3]) ; // get the cell number inside the module
+
+ // get the absolute Id number
+ fGeom->RelToAbsNumbering(relid, absid) ;
+
+ // add current hit to the hit list
+ AddHit(fIshunt, primary,tracknumber, absid, xyze, trackpid,pmom, xyd);
+
+
+ } // there is deposited energy
+ } // we are inside a PHOS Xtal
+
+
+}
+
+//____________________________________________________________________________
+void AliPHOSv1::CPVDigitize (TLorentzVector p, Float_t *zxhit, Int_t moduleNumber, TClonesArray *cpvDigits)
+{
+ // ------------------------------------------------------------------------
+ // Digitize one CPV hit:
+ // On input take exact 4-momentum p and position zxhit of the hit,
+ // find the pad response around this hit and
+ // put the amplitudes in the pads into array digits
+ //
+ // Author: Yuri Kharlov (after Serguei Sadovsky)
+ // 2 October 2000
+ // ------------------------------------------------------------------------
+
+ const Float_t kCelWr = fGeom->GetPadSizePhi()/2; // Distance between wires (2 wires above 1 pad)
+ const Float_t kDetR = 0.1; // Relative energy fluctuation in track for 100 e-
+ const Float_t kdEdx = 4.0; // Average energy loss in CPV;
+ const Int_t kNgamz = 5; // Ionization size in Z
+ const Int_t kNgamx = 9; // Ionization size in Phi
+ const Float_t kNoise = 0.03; // charge noise in one pad
+
+ Float_t rnor1,rnor2;
+
+ // Just a reminder on axes notation in the CPV module:
+ // axis Z goes along the beam
+ // axis X goes across the beam in the module plane
+ // axis Y is a normal to the module plane showing from the IP
+
+ Float_t hitX = zxhit[0];
+ Float_t hitZ =-zxhit[1];
+ Float_t pX = p.Px();
+ Float_t pZ =-p.Pz();
+ Float_t pNorm = p.Py();
+ Float_t eloss = kdEdx;
+
+// cout << "CPVDigitize: YVK : "<<hitX<<" "<<hitZ<<" | "<<pX<<" "<<pZ<<" "<<pNorm<<endl;
+
+ Float_t dZY = pZ/pNorm * fGeom->GetCPVGasThickness();
+ Float_t dXY = pX/pNorm * fGeom->GetCPVGasThickness();
+ gRandom->Rannor(rnor1,rnor2);
+ eloss *= (1 + kDetR*rnor1) *
+ TMath::Sqrt((1 + ( pow(dZY,2) + pow(dXY,2) ) / pow(fGeom->GetCPVGasThickness(),2)));
+ Float_t zhit1 = hitZ + fGeom->GetCPVActiveSize(1)/2 - dZY/2;
+ Float_t xhit1 = hitX + fGeom->GetCPVActiveSize(0)/2 - dXY/2;
+ Float_t zhit2 = zhit1 + dZY;
+ Float_t xhit2 = xhit1 + dXY;
+
+ Int_t iwht1 = (Int_t) (xhit1 / kCelWr); // wire (x) coordinate "in"
+ Int_t iwht2 = (Int_t) (xhit2 / kCelWr); // wire (x) coordinate "out"
+
+ Int_t nIter;
+ Float_t zxe[3][5];
+ if (iwht1==iwht2) { // incline 1-wire hit
+ nIter = 2;
+ zxe[0][0] = (zhit1 + zhit2 - dZY*0.57735) / 2;
+ zxe[1][0] = (iwht1 + 0.5) * kCelWr;
+ zxe[2][0] = eloss/2;
+ zxe[0][1] = (zhit1 + zhit2 + dZY*0.57735) / 2;
+ zxe[1][1] = (iwht1 + 0.5) * kCelWr;
+ zxe[2][1] = eloss/2;
+ }
+ else if (TMath::Abs(iwht1-iwht2) != 1) { // incline 3-wire hit
+ nIter = 3;
+ Int_t iwht3 = (iwht1 + iwht2) / 2;
+ Float_t xwht1 = (iwht1 + 0.5) * kCelWr; // wire 1
+ Float_t xwht2 = (iwht2 + 0.5) * kCelWr; // wire 2
+ Float_t xwht3 = (iwht3 + 0.5) * kCelWr; // wire 3
+ Float_t xwr13 = (xwht1 + xwht3) / 2; // center 13
+ Float_t xwr23 = (xwht2 + xwht3) / 2; // center 23
+ Float_t dxw1 = xhit1 - xwr13;
+ Float_t dxw2 = xhit2 - xwr23;
+ Float_t egm1 = TMath::Abs(dxw1) / ( TMath::Abs(dxw1) + TMath::Abs(dxw2) + kCelWr );
+ Float_t egm2 = TMath::Abs(dxw2) / ( TMath::Abs(dxw1) + TMath::Abs(dxw2) + kCelWr );
+ Float_t egm3 = kCelWr / ( TMath::Abs(dxw1) + TMath::Abs(dxw2) + kCelWr );
+ zxe[0][0] = (dXY*(xwr13-xwht1)/dXY + zhit1 + zhit1) / 2;
+ zxe[1][0] = xwht1;
+ zxe[2][0] = eloss * egm1;
+ zxe[0][1] = (dXY*(xwr23-xwht1)/dXY + zhit1 + zhit2) / 2;
+ zxe[1][1] = xwht2;
+ zxe[2][1] = eloss * egm2;
+ zxe[0][2] = dXY*(xwht3-xwht1)/dXY + zhit1;
+ zxe[1][2] = xwht3;
+ zxe[2][2] = eloss * egm3;
+ }
+ else { // incline 2-wire hit
+ nIter = 2;
+ Float_t xwht1 = (iwht1 + 0.5) * kCelWr;
+ Float_t xwht2 = (iwht2 + 0.5) * kCelWr;
+ Float_t xwr12 = (xwht1 + xwht2) / 2;
+ Float_t dxw1 = xhit1 - xwr12;
+ Float_t dxw2 = xhit2 - xwr12;
+ Float_t egm1 = TMath::Abs(dxw1) / ( TMath::Abs(dxw1) + TMath::Abs(dxw2) );
+ Float_t egm2 = TMath::Abs(dxw2) / ( TMath::Abs(dxw1) + TMath::Abs(dxw2) );
+ zxe[0][0] = (zhit1 + zhit2 - dZY*egm1) / 2;
+ zxe[1][0] = xwht1;
+ zxe[2][0] = eloss * egm1;
+ zxe[0][1] = (zhit1 + zhit2 + dZY*egm2) / 2;
+ zxe[1][1] = xwht2;
+ zxe[2][1] = eloss * egm2;
+ }
+
+ // Finite size of ionization region
+
+ Int_t nCellZ = fGeom->GetNumberOfCPVPadsZ();
+ Int_t nCellX = fGeom->GetNumberOfCPVPadsPhi();
+ Int_t nz3 = (kNgamz+1)/2;
+ Int_t nx3 = (kNgamx+1)/2;
+ cpvDigits->Expand(nIter*kNgamx*kNgamz);
+ TClonesArray &ldigits = *(TClonesArray *)cpvDigits;
+
+ for (Int_t iter=0; iter<nIter; iter++) {
+
+ Float_t zhit = zxe[0][iter];
+ Float_t xhit = zxe[1][iter];
+ Float_t qhit = zxe[2][iter];
+ Float_t zcell = zhit / fGeom->GetPadSizeZ();
+ Float_t xcell = xhit / fGeom->GetPadSizePhi();
+ if ( zcell<=0 || xcell<=0 ||
+ zcell>=nCellZ || xcell>=nCellX) return;
+ Int_t izcell = (Int_t) zcell;
+ Int_t ixcell = (Int_t) xcell;
+ Float_t zc = zcell - izcell - 0.5;
+ Float_t xc = xcell - ixcell - 0.5;
+ for (Int_t iz=1; iz<=kNgamz; iz++) {
+ Int_t kzg = izcell + iz - nz3;
+ if (kzg<=0 || kzg>nCellZ) continue;
+ Float_t zg = (Float_t)(iz-nz3) - zc;
+ for (Int_t ix=1; ix<=kNgamx; ix++) {
+ Int_t kxg = ixcell + ix - nx3;
+ if (kxg<=0 || kxg>nCellX) continue;
+ Float_t xg = (Float_t)(ix-nx3) - xc;
+
+ // Now calculate pad response
+ Float_t qpad = CPVPadResponseFunction(qhit,zg,xg);
+ qpad += kNoise*rnor2;
+ if (qpad<0) continue;
+
+ // Fill the array with pad response ID and amplitude
+ new(ldigits[cpvDigits->GetEntriesFast()]) AliPHOSCPVDigit(kxg,kzg,qpad);
+ }
+ }
+ }
+}
+
+//____________________________________________________________________________
+Float_t AliPHOSv1::CPVPadResponseFunction(Float_t qhit, Float_t zhit, Float_t xhit) {
+ // ------------------------------------------------------------------------
+ // Calculate the amplitude in one CPV pad using the
+ // cumulative pad response function
+ // Author: Yuri Kharlov (after Serguei Sadovski)
+ // 3 October 2000
+ // ------------------------------------------------------------------------
+
+ Double_t dz = fGeom->GetPadSizeZ() / 2;
+ Double_t dx = fGeom->GetPadSizePhi() / 2;
+ Double_t z = zhit * fGeom->GetPadSizeZ();
+ Double_t x = xhit * fGeom->GetPadSizePhi();
+ Double_t amplitude = qhit *
+ (CPVCumulPadResponse(z+dz,x+dx) - CPVCumulPadResponse(z+dz,x-dx) -
+ CPVCumulPadResponse(z-dz,x+dx) + CPVCumulPadResponse(z-dz,x-dx));
+ return (Float_t)amplitude;
+}
+
+//____________________________________________________________________________
+Double_t AliPHOSv1::CPVCumulPadResponse(Double_t x, Double_t y) {
+ // ------------------------------------------------------------------------
+ // Cumulative pad response function
+ // It includes several terms from the CF decomposition in electrostatics
+ // Note: this cumulative function is wrong since omits some terms
+ // but the cell amplitude obtained with it is correct because
+ // these omitting terms cancel
+ // Author: Yuri Kharlov (after Serguei Sadovski)
+ // 3 October 2000
+ // ------------------------------------------------------------------------
+
+ const Double_t kA=1.0;
+ const Double_t kB=0.7;
+
+ Double_t r2 = x*x + y*y;
+ Double_t xy = x*y;
+ Double_t cumulPRF = 0;
+ for (Int_t i=0; i<=4; i++) {
+ Double_t b1 = (2*i + 1) * kB;
+ cumulPRF += TMath::Power(-1,i) * TMath::ATan( xy / (b1*TMath::Sqrt(b1*b1 + r2)) );
+ }
+ cumulPRF *= kA/(2*TMath::Pi());
+ return cumulPRF;
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff