X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=PHOS%2FAliPHOSv1.cxx;h=f4e066f5acd98ceb61622f4961dfcc934683e740;hb=5c617c3138e7ca821933a89825670c598cfca4ca;hp=0a62f67f180c5b7347ea590ff67d13b5f8a90f63;hpb=6435828cba22bf29a06d1d2f6a33d10aa30c6b04;p=u%2Fmrichter%2FAliRoot.git diff --git a/PHOS/AliPHOSv1.cxx b/PHOS/AliPHOSv1.cxx index 0a62f67f180..f4e066f5acd 100644 --- a/PHOS/AliPHOSv1.cxx +++ b/PHOS/AliPHOSv1.cxx @@ -1,304 +1,887 @@ -///////////////////////////////////////////////////////// -// 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 +#include +#include +#include + +// --- 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; iyGspos("CELL",++n,"PHOS",x,y,z,0,"ONLY"); -// } -// } - - ////////////////////////////////////////////////////////////////////////////// - // End of CRADLE creation. - ////////////////////////////////////////////////////////////////////////////// - - - ////////////////////////////////////////////////////////////////////////////// - // PHOS creation - ////////////////////////////////////////////////////////////////////////////// - - for( int i=0; iGspos("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; itrackGetNtrack(); 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; idigitUncheckedAt(idigit); + Float_t x1 = cpvDigit1->GetXpad() ; + Float_t z1 = cpvDigit1->GetYpad() ; + for (Int_t jdigit=idigit+1; jdigitUncheckedAt(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; idigitUncheckedAt(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 : "<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; iterGetPadSizeZ(); + 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; }