AliEMCALGeometry::~AliEMCALGeometry(void){
// dtor
}
-//______________________________________________________________________
-void AliEMCALGeometry::Init(void){
- // Initializes the EMCAL parameters
- fgInit = kFALSE; // Assume failer untill proven otherwise.
+//______________________________________________________________________
+const Bool_t AliEMCALGeometry::AreInSameTower(Int_t id1, Int_t id2) const {
+ Int_t idmax = TMath::Max(id1, id2) ;
+ Int_t idmin = TMath::Min(id1, id2) ;
+ if ( ((idmax - GetNZ() * GetNPhi()) == idmin ) ||
+ ((idmax - 2 * GetNZ() * GetNPhi()) == idmin ) )
+ return kTRUE ;
+ else
+ return kFALSE ;
+}
- TString name(GetName()) ;
+//______________________________________________________________________
+void AliEMCALGeometry::Init(void){
+ // Initializes the EMCAL parameters
+ // naming convention : GUV_L_WX_N_YZ_M gives the composition of a tower
+ // UV inform about the compsition of the pre-shower section:
+ // thickness in mm of Pb radiator (U) and of scintillator (V), and number of scintillator layers (L)
+ // WX inform about the composition of the EM calorimeter section:
+ // thickness in mm of Pb radiator (W) and of scintillator (X), and number of scintillator layers (N)
+ // YZ inform about the composition of the hadron calorimeter section:
+ // thickness in mm of Cu radiator (Y) and of scintillator (Z), and number of scintillator layers (M)
+ // Valid geometries are G56_2_55_19_104_14
+ // G56_2_55_19 or EMCAL_5655_21
+ // G65_2_64_19 or EMCAL_6564_21
+
+ fgInit = kFALSE; // Assume failer untill proven otherwise.
+ TString name(GetName()) ;
+
+ if ( name == "G56_2_55_19_104_14" ) {
+ fPRPbRadThickness = 0.5; // cm, Thickness of the Pb radiators for the preshower section
+ fPRScintThick = 0.6; // cm, Thickness of the sintilator for the preshower section of the tower
+ fNPRLayers = 2; // number of scintillator layers in the preshower section
+
+ fECPbRadThickness = 0.5; // cm, Thickness of the Pb radiators for the EM calorimeter section
+ fECScintThick = 0.5; // cm, Thickness of the sintilator for the EM alorimeter section of the tower
+ fNECLayers = 19; // number of scintillator layers in the EM calorimeter section
+
+ fHCCuRadThickness = 1.0; // cm, Thickness of the Cu radiators.
+ fHCScintThick = 0.4; // cm, Thickness of the sintilator for the hadronic alorimeter section of the tower
+ fNHCLayers = 14; // number of scintillator layers in the hadronic calorimeter section
+
+ fSampling = 12. ;
+ fSummationFraction = 0.8 ;
+
+ fAlFrontThick = 3.0; // cm, Thickness of front Al layer
+ fGap2Active = 1.0; // cm, Gap between Al and 1st Scintillator
+ }
+ else if ( name == "G56_2_55_19" || name == "EMCAL_5655_21" ) {
+ fPRPbRadThickness = 0.5; // cm, Thickness of the Pb radiators for the preshower section
+ fPRScintThick = 0.6; // cm, Thickness of the sintilator for the preshower section of the tower
+ fNPRLayers = 2; // number of scintillator layers in the preshower section
+
+ fECPbRadThickness = 0.5; // cm, Thickness of the Pb radiators for the EM calorimeter section
+ fECScintThick = 0.5; // cm, Thickness of the sintilator for the EM alorimeter section of the tower
+ fNECLayers = 19; // number of scintillator layers in the EM calorimeter section
+
+ fHCCuRadThickness = 0.0; // cm, Thickness of the Cu radiators.
+ fHCScintThick = 0.0; // cm, Thickness of the sintilator for the hadronic alorimeter section of the tower
+ fNHCLayers = 0; // number of scintillator layers in the hadronic calorimeter section
+
+ fSampling = 12. ;
+ fSummationFraction = 0.8 ;
+
+ fAlFrontThick = 3.0; // cm, Thickness of front Al layer
+ fGap2Active = 1.0; // cm, Gap between Al and 1st Scintillator
+ }
+ else if ( name == "G65_2_64_19" || name == "EMCAL_6564_21" ) {
+ fPRPbRadThickness = 0.6; // cm, Thickness of the Pb radiators for the preshower section
+ fPRScintThick = 0.5; // cm, Thickness of the sintilator for the preshower section of the tower
+ fNPRLayers = 2; // number of scintillator layers in the preshower section
+
+ fECPbRadThickness = 0.6; // cm, Thickness of the Pb radiators for the EM calorimeter section
+ fECScintThick = 0.4; // cm, Thickness of the sintilator for the EM alorimeter section of the tower
+ fNECLayers = 19; // number of scintillator layers in the EM calorimeter section
+
+ fHCCuRadThickness = 0.0; // cm, Thickness of the Cu radiators.
+ fHCScintThick = 0.0; // cm, Thickness of the sintilator for the hadronic alorimeter section of the tower
+ fNHCLayers = 0; // number of scintillator layers in the hadronic calorimeter section
+
+ fSampling = 12. ;
+ fSummationFraction = 0.8 ;
+
+ fAlFrontThick = 3.0; // cm, Thickness of front Al layer
+ fGap2Active = 1.0; // cm, Gap between Al and 1st Scintillator
+ }
+ else
+ Fatal("Init", "%s is an undefined geometry!", name.Data()) ;
- if( name != "EMCALArch1a" &&
- name != "EMCALArch1b" &&
- name != "EMCALArch2a" &&
- name != "EMCALArch2b" &&
- name != "EMCALArch1aN" ){
- Fatal("Init", "%s is not a known geometry (choose among EMCALArch1a, EMCALArch1b, EMCALArch2a and EMCALArch2b, EMCALArch1aN)", name.Data()) ;
- } // end if
- //
- if ( name == "EMCALArch1a" ||
- name == "EMCALArch1b" ||
- name == "EMCALArch1aN") {
- fNZ = 96;
- fNPhi = 144;
- } // end if
- if ( name == "EMCALArch2a" ||
- name == "EMCALArch2b" ) {
- fNZ = 112;
- fNPhi = 168;
- } // end if
- if ( name == "EMCALArch1a" ||
- name == "EMCALArch2a" ) {
- fNPRLayers = 2;
- fNECLayers = 19;
- fNHCLayers = 0;
- } // end if
- if ( name == "EMCALArch1b" ||
- name == "EMCALArch2b" ) {
- fNPRLayers = 2;
- fNECLayers = 23;
- fNHCLayers = 0;
- } // end if
- if ( name == "EMCALArch1aN") {
- fNPRLayers = 2;
- fNECLayers = 19;
- fNHCLayers = 14;
- }
-
- // geometry
- fArm1PhiMin = 60.0; // degrees, Starting EMCAL Phi position
- fArm1PhiMax = 180.0; // degrees, Ending EMCAL Phi position
- fArm1EtaMin = -0.7; // pseudorapidity, Starting EMCAL Eta position
- fArm1EtaMax = +0.7; // pseudorapidity, Ending EMCAL Eta position
-
- fAlFrontThick = 3.18; // cm, Thickness of front Al layer
- fGap2Active = 1.0; // cm, Gap between Al and 1st Scintillator
- fPbRadThickness = 0.5; // cm, Thickness of the Pb radiators.
- fPreShowerSintThick = 0.6; // cm, Thickness of the sintilator for the preshower part of the calorimeter
- fFullShowerSintThick = 0.5; // cm, Thickness of the sintilator for the dull shower part of the calorimeter
- fCuRadThickness = 0.0; // cm, Thickness of the Cu radiators.
-
- if (name == "EMCALArch1aN") {
- fAlFrontThick = 3.0; // cm, Thickness of front Al layer
- fGap2Active = 1.0; // cm, Gap between Al and 1st Scintillator
- fPbRadThickness = 0.6; // cm, Thickness of the Pb radiators.
- fPreShowerSintThick = 0.5; // cm, Thickness of the sintilator for the preshower part of the calorimeter
- fFullShowerSintThick = 0.4; // cm, Thickness of the sintilator for the full shower part of the calorimeter
- fCuRadThickness = 1.0; // cm, Thickness of the Cu radiators.
- }
-
- fIPDistance = 454.0; // cm, Radial distance to inner surface of EMCAL
- fShellThickness = fAlFrontThick + fGap2Active + 2.*(GetPreSintThick() + GetPbRadThick()) + // pre shower
- (fNECLayers-1)*(GetFullSintThick()+ GetPbRadThick()) + // E cal -1 because the last element is a scintillator
- fNHCLayers*(GetFullSintThick()+ GetCuRadThick()) + // H cal
- GetFullSintThick() ; // last scintillator
- fZLength = 2.*ZFromEtaR(fIPDistance+fShellThickness,fArm1EtaMax); // Z coverage
- fEnvelop[0] = fIPDistance; // mother volume inner radius
- fEnvelop[1] = fIPDistance + fShellThickness; // mother volume outer r.
- fEnvelop[2] = 1.00001*fZLength; // add some padding for mother volume.
- fgInit = kTRUE;
+ // if( name != "EMCALArch1a" &&
+// name != "EMCALArch1b" &&
+// name != "EMCALArch2a" &&
+// name != "EMCALArch2b" &&
+// name != "EMCALArch1aN" ){
+// Fatal("Init", "%s is not a known geometry (choose among EMCALArch1a, EMCALArch1b, EMCALArch2a and EMCALArch2b, EMCALArch1aN)", name.Data()) ;
+// } // end if
+// //
+// if ( name == "EMCALArch1a" ||
+// name == "EMCALArch1b" ||
+// name == "EMCALArch1aN") {
+// fNZ = 96;
+// fNPhi = 144;
+// } // end if
+// if ( name == "EMCALArch2a" ||
+// name == "EMCALArch2b" ) {
+// fNZ = 112;
+// fNPhi = 168;
+// } // end if
+// if ( name == "EMCALArch1a" ||
+// name == "EMCALArch2a" ) {
+// fNPRLayers = 2;
+// fNECLayers = 19;
+// fNHCLayers = 0;
+// } // end if
+// if ( name == "EMCALArch1b" ||
+// name == "EMCALArch2b" ) {
+// fNPRLayers = 2;
+// fNECLayers = 23;
+// fNHCLayers = 0;
+// } // end if
+// if ( name == "EMCALArch1aN") {
+// fNPRLayers = 2;
+// fNECLayers = 19;
+// fNHCLayers = 14;
+// }
+
+ // geometry
+ fNZ = 96; // granularity along Z (eta)
+ fNPhi = 144; // granularity in phi (azimuth)
+ fArm1PhiMin = 60.0; // degrees, Starting EMCAL Phi position
+ fArm1PhiMax = 180.0; // degrees, Ending EMCAL Phi position
+ fArm1EtaMin = -0.7; // pseudorapidity, Starting EMCAL Eta position
+ fArm1EtaMax = +0.7; // pseudorapidity, Ending EMCAL Eta position
+
+ fIPDistance = 454.0; // cm, Radial distance to inner surface of EMCAL
+ fShellThickness = fAlFrontThick + fGap2Active + 2.*(GetPRScintThick() + GetPRPbRadThick()) + // pre shower
+ (fNECLayers-1)*(GetECScintThick()+ GetECPbRadThick()) + // E cal -1 because the last element is a scintillator
+ fNHCLayers*(GetHCScintThick()+ GetHCCuRadThick()) + // H cal
+ GetHCScintThick() ; // last scintillator
+ fZLength = 2.*ZFromEtaR(fIPDistance+fShellThickness,fArm1EtaMax); // Z coverage
+ fEnvelop[0] = fIPDistance; // mother volume inner radius
+ fEnvelop[1] = fIPDistance + fShellThickness; // mother volume outer r.
+ fEnvelop[2] = 1.00001*fZLength; // add some padding for mother volume.
+
+ fgInit = kTRUE;
+
+ Info("Init", "geometry of EMCAL named %s is as follows:", name.Data());
+ printf( "Tower geometry pre-shower: %d x (%f mm Pb, %f mm Sc) \n", GetNPRLayers(), GetPRPbRadThick(), GetPRScintThick() ) ;
+ printf( " ECAL : %d x (%f mm Pb, %f mm Sc) \n", GetNECLayers(), GetECPbRadThick(), GetECScintThick() ) ;
+ if ( GetNHCLayers() > 0 )
+ printf( " HCAL : %d x (%f mm Pb, %f mm Sc) \n", GetNHCLayers(), GetHCCuRadThick(), GetHCScintThick() ) ;
+ printf("Granularity: %d in eta and %d in phi\n", GetNZ(), GetNPhi()) ;
+ printf("Layout: phi = (%f, %f), eta = (%f, %f), y = %f\n",
+ GetArm1PhiMin(), GetArm1PhiMax(),GetArm1EtaMin(), GetArm1EtaMax(), GetIPDistance() ) ;
}
//______________________________________________________________________
}
//______________________________________________________________________
-Int_t AliEMCALGeometry::TowerIndex(Int_t ieta,Int_t iphi,Int_t ipre) const {
- // Returns the tower index number from the based on the Z and Phi
- // index numbers. There are 2 times the number of towers to separate
- // out the full towers from the pre-showers.
- // Inputs:
- // Int_t ieta // index allong z axis [1-fNZ]
- // Int_t iphi // index allong phi axis [1-fNPhi]
- // Int_t ipre // 0 = Full tower, 1 = Pre-shower tower only. [0,1]
- // Outputs:
- // none.
- // Returned
- // Int_t the absoulute tower index. [1-2*fNZ*fNPhi]
- Int_t index;
-
- if((ieta<=0 || ieta>GetNEta()) || (iphi<=0 || iphi>GetNPhi()) ||
- (ipre<0 || ipre>1) ){
- TString message ("\n") ;
- message += "inputs out of range ieta= " ;
- message += ieta ;
- message += " [1-" ;
- message += GetNEta() ;
- message += "] iphi= " ;
- message += iphi ;
- message += " [1-" ;
- message += GetNPhi() ;
- message += "] ipre= " ;
- message += ipre ;
- message += "[0,1]. returning -1" ;
- Warning("TowerIndex", message.Data() ) ;
- return -1;
- } // end if
- index = iphi + GetNPhi()*(ieta-1) + ipre*(GetNPhi()*GetNEta());
- return index;
+Int_t AliEMCALGeometry::TowerIndex(Int_t ieta,Int_t iphi) const {
+ // Returns the tower index number from the based on the Z and Phi
+ // index numbers. There are 2 times the number of towers to separate
+ // out the full towers from the pre-showers.
+ // Inputs:
+ // Int_t ieta // index allong z axis [1-fNZ]
+ // Int_t iphi // index allong phi axis [1-fNPhi]
+ // Int_t where // 1 = PRE section, 0 = EC section, 2 = HC section
+ // Outputs:
+ // none.
+ // Returned
+ // Int_t index // Tower index number
+
+ if ( (ieta <= 0 || ieta>GetNEta()) ||
+ (iphi <= 0 || iphi>GetNPhi()))
+ Fatal("TowerIndex", "Unexpected parameters eta = %d phi = %d!", ieta, iphi) ;
+
+ return ( (iphi - 1)*GetNEta() + ieta );
}
//______________________________________________________________________
void AliEMCALGeometry::TowerIndexes(Int_t index,Int_t &ieta,Int_t &iphi,
Int_t &ipre) const {
- // given the tower index number it returns the based on the Z and Phi
- // index numbers and if it is for the full tower or the pre-tower number.
- // There are 2 times the number of towers to separate
- // out the full towsers from the pre-towsers.
- // Inputs:
- // Int_t index // Tower index number [1-2*fNZ*fNPhi]
- // Outputs:
- // Int_t ieta // index allong z axis [1-fNZ]
- // Int_t iphi // index allong phi axis [1-fNPhi]
- // Int_t ipre // 0 = Full tower, 1 = Pre-shower tower only. [0,1]
- // Returned
- // none.
- Int_t itowers;
-
- itowers = GetNEta()*GetNPhi();
- if(index<1 || index>2*itowers){
- TString message("\n") ;
- message += "index= " ;
- message += index ;
- message += " is out of range [1-" ;
- message += 2*itowers ;
- message += "], returning -1 for all." ;
- Warning("TowerIndex", message.Data() ) ;
- ieta = -1; iphi = -1; ipre = -1;
- return ;
- } // end if
- ipre = 0;
- if(index>itowers){ // pre shower indexs
- ipre = 1;
- index = index - itowers;
- } // end if
- ieta = 1+ (Int_t)((index-1)/GetNPhi());
- iphi = index - GetNPhi()*(ieta-1);
- return;
+ // Inputs:
+ // Int_t index // Tower index number [1-i*fNZ*fNPhi] PRE(i=1)/ECAL(i=2)/HCAL(i=3)
+ // Outputs:
+ // Int_t ieta // index allong z axis [1-fNZ]
+ // Int_t iphi // index allong phi axis [1-fNPhi]
+ // Int_t ipre // 0 = ECAL section, 1 = Pre-shower section, 2 = HCAL section
+ // Returned
+ // none.
+
+
+ Int_t nindex = 0, itowers = GetNEta() * GetNPhi();
+
+ if ( IsInPRE(index) ) { // PRE index
+ nindex = index - itowers;
+ ipre = 1 ;
+ }
+ else if ( IsInECAL(index) ) { // ECAL index
+ nindex = index ;
+ ipre = 0 ;
+ }
+ else if ( IsInHCAL(index) ) { // HCAL index
+ nindex = index - 2*itowers;
+ ipre = 2 ;
+ }
+ else
+ Fatal("TowerIndexes", "Unexpected Id number!") ;
+
+ if (nindex%GetNZ())
+ iphi = nindex / GetNZ() + 1 ;
+ else
+ iphi = nindex / GetNZ() ;
+ ieta = nindex - (iphi - 1) * GetNZ() ;
+
+ if (gDebug==2)
+ Info("TowerIndexes", "index=%d,%d, ieta=%d, iphi = %d", index, nindex,ieta, iphi) ;
+ return;
+
}
//______________________________________________________________________
// given the tower index number it returns the based on the eta and phi
// of the tower.
// Inputs:
- // Int_t index // Tower index number [1-2*fNZ*fNPhi]
+ // Int_t index // Tower index number [1-i*fNZ*fNPhi] PRE(i=1)/ECAL(i=2)/HCAL(i=3)
// Outputs:
// Float_t eta // eta of center of tower in pseudorapidity
// Float_t phi // phi of center of tower in degrees
// Returned
// none.
- Int_t ieta,iphi,ipre;
- Double_t deta,dphi,phid;
+ Int_t ieta, iphi, ipre ;
+ Float_t deta, dphi ;
TowerIndexes(index,ieta,iphi,ipre);
- deta = (GetArm1EtaMax()-GetArm1EtaMin())/((Float_t)GetNEta());
- eta = GetArm1EtaMin() + (((Float_t)ieta)-0.5)*deta;
- dphi = (GetArm1PhiMax() - GetArm1PhiMin())/((Float_t)GetNPhi()); // in degrees.
- phid = GetArm1PhiMin() + dphi*((Float_t)iphi -0.5);//iphi range [1-fNphi].
- phi = phid;
+
+ if (gDebug == 2)
+ Info("EtaPhiFromIndex","index = %d, ieta = %d, iphi = %d", index, ieta, iphi) ;
+
+ deta = (GetArm1EtaMax()-GetArm1EtaMin())/(static_cast<Float_t>(GetNEta()));
+ eta = GetArm1EtaMin() + ((static_cast<Float_t>(ieta) - 0.5 ))*deta;
+
+ dphi = (GetArm1PhiMax() - GetArm1PhiMin())/(static_cast<Float_t>(GetNPhi())); // in degrees.
+ phi = GetArm1PhiMin() + dphi*(static_cast<Float_t>(iphi) - 0.5);//iphi range [1-fNphi].
}
//______________________________________________________________________
// none.
// Returned
// Int_t index // Tower index number [1-fNZ*fNPhi]
+
Int_t ieta,iphi;
- ieta = 1 + (Int_t)(((Float_t)GetNEta())*(eta-GetArm1EtaMin())/
- (GetArm1EtaMax() - GetArm1EtaMin()));
- if(ieta<=0 || ieta>GetNEta()){
- TString message("\n") ;
- message += "ieta = " ;
- message += ieta ;
- message += " eta=" ;
- message += eta ;
- message += " is outside of EMCAL. etamin=" ;
- message += GetArm1EtaMin() ;
- message += " to etamax=" ;
- message += GetArm1EtaMax();
- message += " returning -1";
- Warning("TowerIndexFromEtaPhi", message.Data() ) ;
- return -1;
- } // end if
- iphi = 1 + (Int_t)(((Float_t)GetNPhi())*(phi-GetArm1PhiMin())/
- ((Float_t)(GetArm1PhiMax() - GetArm1PhiMin())));
- if(iphi<=0 || iphi>GetNPhi()){
- TString message("\n") ;
- message += "iphi=" ;
- message += iphi ;
- message += "phi= " ;
- message += phi ;
- message += " is outside of EMCAL." ;
- message += " Phimin=" ;
- message += GetArm1PhiMin() ;
- message += " PhiMax=" ;
- message += GetArm1PhiMax() ;
- message += " returning -1" ;
- Warning("TowerIndexFromEtaPhi", message.Data() ) ;
- return -1;
- } // end if
- return TowerIndex(ieta,iphi,0);
+ ieta = static_cast<Int_t> ( 1 + (static_cast<Float_t>(GetNEta()) * (eta - GetArm1EtaMin()) / (GetArm1EtaMax() - GetArm1EtaMin())) ) ;
+
+ if( ieta <= 0 || ieta > GetNEta() ) {
+ Error("TowerIndexFromEtaPhi", "Unexpected (eta, phi) = (%f, %f) value, outside of EMCAL!", eta, phi) ;
+ return -1 ;
+ }
+
+ iphi = static_cast<Int_t> ( 1 + (static_cast<Float_t>(GetNPhi()) * (phi - GetArm1PhiMin()) / (GetArm1PhiMax() - GetArm1PhiMin())) ) ;
+
+ if( iphi <= 0 || iphi > GetNPhi() ) {
+ Error("TowerIndexFromEtaPhi", "Unexpected (eta, phi) = (%f, %f) value, outside of EMCAL!", eta, phi) ;
+ return -1 ;
+ }
+
+ return TowerIndex(ieta,iphi);
}
//______________________________________________________________________
Bool_t AliEMCALGeometry::AbsToRelNumbering(Int_t AbsId, Int_t *relid) const {
// Converts the absolute numbering into the following array/
// relid[0] = EMCAL Arm number 1:1
- // relid[1] = 0 Not in Pre Shower layers
- // = -1 In Pre Shower
+ // relid[1] = 0 ECAL section ; = 1 PRE section; = 2 HCA section
// relid[2] = Row number inside EMCAL
// relid[3] = Column number inside EMCAL
// Input:
TowerIndexes(index,ieta,iphi,ipre);
relid[0] = 1;
- relid[1] = 0;
- if(ipre==1)
- relid[1] = -1;
+ relid[1] = ipre;
relid[2] = ieta;
relid[3] = iphi;
}
//______________________________________________________________________
-void AliEMCALGeometry::PosInAlice(const Int_t *relid,Float_t &theta,
- Float_t &phi) const {
- // Converts the relative numbering into the local EMCAL-module (x, z)
- // coordinates
- Int_t ieta = relid[2]; // offset along x axis
- Int_t iphi = relid[3]; // offset along z axis
- Int_t ipre = relid[1]; // indicates -1 preshower, or 0 full tower.
- Int_t index;
- Float_t eta;
-
- if(ipre==-1) ipre = 1;
- index = TowerIndex(ieta,iphi,ipre);
- EtaPhiFromIndex(index,eta,phi);
- theta = 180.*(2.0*TMath::ATan(TMath::Exp(-eta)))/TMath::Pi();
+void AliEMCALGeometry::PosInAlice(const Int_t *relid, Float_t &theta, Float_t &phi) const
+{
+ // Converts the relative numbering into the local EMCAL-module (x, z)
+ // coordinates
+ Int_t sect = relid[1]; // PRE/ECAL/HCAL section 1/0/2
+ Int_t ieta = relid[2]; // offset along x axis
+ Int_t iphi = relid[3]; // offset along z axis
+ Int_t index;
+ Float_t eta;
+
+ index = TowerIndex(ieta,iphi);
+ EtaPhiFromIndex(index,eta,phi);
+ theta = 180.*(2.0*TMath::ATan(TMath::Exp(-eta)))/TMath::Pi();
+
+ // correct for distance to IP different in PRE/ECAL/HCAL
+ Float_t d = 0. ;
+ if (sect == 1)
+ d = GetIP2PRESection() - GetIPDistance() ;
+ else if (sect == 0)
+ d = GetIP2ECALSection() - GetIPDistance() ;
+ else if (sect == 2)
+ d = GetIP2HCALSection() - GetIPDistance() ;
+ else
+ Fatal("PosInAlice", "Unexpected tower section!") ;
+
+ Float_t correction = 1 + d/GetIPDistance() ;
+ Float_t tantheta = TMath::Tan(theta) * correction ;
+ theta = TMath::ATan(tantheta) * TMath::RadToDeg() ;
+ if (theta < 0 )
+ theta += 180. ;
+
+ return;
+}
- return;
+//______________________________________________________________________
+void AliEMCALGeometry::PosInAlice(const Int_t absid, Float_t &theta, Float_t &phi) const
+{
+ // Converts the relative numbering into the local EMCAL-module (x, z)
+ // coordinates
+
+ Int_t relid[4] ;
+ AbsToRelNumbering(absid, relid) ;
+ Int_t ieta = relid[2]; // offset along x axis
+ Int_t iphi = relid[3]; // offset along z axis
+ Int_t index;
+ Float_t eta;
+
+ index = TowerIndex(ieta,iphi);
+ EtaPhiFromIndex(index,eta,phi);
+ theta = 2.0*TMath::ATan(TMath::Exp(-eta)) ;
+
+ // correct for distance to IP different in PRE/ECAL/HCAL
+ Float_t d = 0. ;
+ if (IsInPRE(absid))
+ d = GetIP2PRESection() - GetIPDistance() ;
+ else if (IsInECAL(absid))
+ d = GetIP2ECALSection() - GetIPDistance() ;
+ else if (IsInHCAL(absid))
+ d = GetIP2HCALSection() - GetIPDistance() ;
+ else
+ Fatal("PosInAlice", "Unexpected id # %d!", absid) ;
+
+ Float_t correction = 1 + d/GetIPDistance() ;
+ Float_t tantheta = TMath::Tan(theta) * correction ;
+ theta = TMath::ATan(tantheta) * TMath::RadToDeg() ;
+ if (theta < 0 )
+ theta += 180. ;
+
+ return;
}
//______________________________________________________________________
// Returned
// none.
- Float_t eta,theta, phi,cyl_radius,kDeg2Rad;
+ Float_t eta,theta, phi,cyl_radius=0. ;
Int_t ieta = relid[2]; // offset along x axis
Int_t iphi = relid[3]; // offset along z axis
- Int_t ipre = relid[1]; // indicates -1 preshower, or 0 full tower.
+ Int_t ipre = relid[1]; // indicates 0 ECAL section, 1 PRE section, 2 HCAL section.
Int_t index;
-
- if(ipre==-1) ipre = 1;
- index = TowerIndex(ieta,iphi,ipre);
+ index = TowerIndex(ieta,iphi);
EtaPhiFromIndex(index,eta,phi);
theta = 180.*(2.0*TMath::ATan(TMath::Exp(-eta)))/TMath::Pi();
- kDeg2Rad = TMath::Pi() / static_cast<Double_t>(180) ;
- if ( ipre == -1 )
- cyl_radius = GetIP2PreShower() ;
+ if ( ipre == 0 )
+ cyl_radius = GetIP2ECALSection() ;
+ else if ( ipre == 1 )
+ cyl_radius = GetIP2PRESection() ;
+ else if ( ipre == 2 )
+ cyl_radius = GetIP2HCALSection() ;
else
- cyl_radius = GetIP2Tower() ;
+ Fatal("XYZFromIndex", "Unexpected Tower section # %d", ipre) ;
+ Double_t kDeg2Rad = TMath::DegToRad() ;
x = cyl_radius * TMath::Cos(phi * kDeg2Rad ) ;
y = cyl_radius * TMath::Sin(phi * kDeg2Rad ) ;
z = cyl_radius / TMath::Tan(theta * kDeg2Rad ) ;
return;
}
+//______________________________________________________________________
+void AliEMCALGeometry::XYZFromIndex(const Int_t absid, TVector3 &v) const {
+ // given the tower relative number it returns the X, Y and Z
+ // of the tower.
+
+ // Outputs:
+ // Float_t x // x of center of tower in cm
+ // Float_t y // y of center of tower in cm
+ // Float_t z // z of centre of tower in cm
+ // Returned
+ // none.
+
+ Float_t theta, phi,cyl_radius=0. ;
+
+ PosInAlice(absid, theta, phi) ;
+
+ if ( IsInECAL(absid) )
+ cyl_radius = GetIP2ECALSection() ;
+ else if ( IsInPRE(absid) )
+ cyl_radius = GetIP2PRESection() ;
+ else if ( IsInHCAL(absid) )
+ cyl_radius = GetIP2HCALSection() ;
+ else
+ Fatal("XYZFromIndex", "Unexpected Tower section") ;
+
+ Double_t kDeg2Rad = TMath::DegToRad() ;
+ v.SetX(cyl_radius * TMath::Cos(phi * kDeg2Rad ) );
+ v.SetY(cyl_radius * TMath::Sin(phi * kDeg2Rad ) );
+ v.SetZ(cyl_radius / TMath::Tan(theta * kDeg2Rad ) ) ;
+
+ return;
+}
+
//______________________________________________________________________
/*
Boot_t AliEMCALGeometry::AreNeighbours(Int_t index1,Int_t index2) const {
#include <assert.h>
// --- ROOT system ---
-#include "TString.h"
-#include "TObjArray.h"
-#include "TVector3.h"
+ class TString ;
+class TObjArray ;
+class TVector3 ;
class TParticle ;
// --- AliRoot header files ---
assert(0==1) ;
return *(GetInstance()) ;
};
+
+ const Bool_t AreInSameTower(Int_t id1, Int_t id2) const ;
virtual void GetGlobal(const AliRecPoint *, TVector3 &, TMatrix &) const {}
virtual void GetGlobal(const AliRecPoint *, TVector3 &) const {}
virtual Bool_t Impact(const TParticle * particle) const {return kTRUE;}
const Float_t GetArm1EtaMin() const { return fArm1EtaMin;}
const Float_t GetArm1EtaMax() const { return fArm1EtaMax;}
const Float_t GetIPDistance() const { return fIPDistance ; }
- const Float_t GetIP2PreShower() const { return (GetIPDistance() + GetAlFrontThickness() + GetGap2Active() ) ;}
- const Float_t GetIP2Tower() const { return ( GetIP2PreShower() + 2 * ( GetPreSintThick() + GetPbRadThick() ) ) ; }
+ const Float_t GetIP2PRESection() const { return (GetIPDistance() + GetAlFrontThickness() + GetGap2Active() ) ;}
+ const Float_t GetIP2ECALSection() const { return ( GetIP2PRESection() + GetNPRLayers() * ( GetPRScintThick() + GetPRPbRadThick() ) ) ; }
+ const Float_t GetIP2HCALSection() const { return ( GetIP2ECALSection() + GetNECLayers() * ( GetECScintThick() + GetECPbRadThick() ) ) ; }
const Float_t GetEnvelop(Int_t index) const { return fEnvelop[index] ; }
const Float_t GetShellThickness() const { return fShellThickness ; }
const Float_t GetZLength() const { return fZLength ; }
const Int_t GetNEta() const {return fNZ ;}
const Int_t GetNPhi() const {return fNPhi ;}
const Int_t GetNTowers() const {return fNPhi * fNZ ;}
- const Float_t GetPbRadThick()const {return fPbRadThickness;}
- const Float_t GetCuRadThick()const {return fCuRadThickness;}
- const Float_t GetFullSintThick() const { // returns Full tower sintilator
- // thickness in cm.
- return fFullShowerSintThick;
- }
- const Float_t GetPreSintThick() const { // returns PreShower tower sintilator
- // thickness in cm.
- return fPreShowerSintThick;
- }
+ const Float_t GetPRPbRadThick()const {return fPRPbRadThickness;}
+ const Float_t GetECPbRadThick()const {return fECPbRadThickness;}
+ const Float_t GetHCCuRadThick()const {return fHCCuRadThickness;}
+ const Float_t GetPRScintThick() const {return fPRScintThick;}
+ const Float_t GetECScintThick() const {return fECScintThick;}
+ const Float_t GetHCScintThick() const {return fECScintThick;}
+ const Float_t GetSampling() const {return fSampling ; }
+ const Float_t GetSummationFraction() const {return fSummationFraction ; }
+
+ const Bool_t IsInPRE(Int_t index) const { if ( (index > (GetNZ() * GetNPhi()) && (index <= 2 * (GetNZ() * GetNPhi())))) return kTRUE; else return kFALSE ;}
+ const Bool_t IsInECAL(Int_t index) const { if ( (index > 0 && (index <= GetNZ() * GetNPhi()))) return kTRUE; else return kFALSE ;}
+ const Bool_t IsInHCAL(Int_t index) const { if ( (index > 2*(GetNZ() * GetNPhi()) && (index <= 3 * (GetNZ() * GetNPhi())))) return kTRUE; else return kFALSE ;} ;
+
Float_t AngleFromEta(Float_t eta){ // returns angle in radians for a given
// pseudorapidity.
return 2.0*TMath::ATan(TMath::Exp(-eta));
// pseudorapidity and r=sqrt(x*x+y*y).
return r/TMath::Tan(AngleFromEta(eta));
}
- Int_t TowerIndex(Int_t iz,Int_t iphi,Int_t ipre) const; // returns tower index
+ Int_t TowerIndex(Int_t iz,Int_t iphi) const; // returns tower index
// returns tower indexs iz, iphi.
void TowerIndexes(Int_t index,Int_t &iz,Int_t &iphi,Int_t &ipre) const;
// for a given tower index it returns eta and phi of center of that tower.
void EtaPhiFromIndex(Int_t index,Float_t &eta,Float_t &phi) const;
// returns x, y, and z (cm) on the inner surface of a given EMCAL Cell specified by relid.
void XYZFromIndex(const Int_t *relid,Float_t &x,Float_t &y, Float_t &z) const;
+ void XYZFromIndex(const Int_t absid, TVector3 &v) const;
// for a given eta and phi in the EMCAL it returns the tower index.
Int_t TowerIndexFromEtaPhi(Float_t eta,Float_t phi) const;
// for a given eta and phi in the EMCAL it returns the pretower index.
Int_t PreTowerIndexFromEtaPhi(Float_t eta,Float_t phi) const;
- // Returns theta and phi (degree) for a given EMCAL cell indecated by relid
- void PosInAlice(const Int_t *relid,Float_t &theta,Float_t &phi) const ;
- // Returns an array indicating the Tower/preshower, iz, and iphi for a
- // specific EMCAL indes.
+ // Returns theta and phi (degree) for a given EMCAL cell indicated by relid or absid
+ void PosInAlice(const Int_t *relid, Float_t &theta, Float_t &phi) const ;
+ void PosInAlice(const Int_t absid, Float_t &theta, Float_t &phi) const ;
Bool_t AbsToRelNumbering(Int_t AbsId, Int_t *relid) const;
/*
// Returns kTRUE if the two indexs are neighboring towers or preshowers.
void SetNZ(Int_t nz) { fNZ= nz ; Info("SetNZ", "Number of modules in Z set to %d", fNZ) ; }
void SetNPhi(Int_t nphi) { fNPhi= nphi ; Info("SetNPhi", "Number of modules in Phi set to %d", fNPhi) ; }
-
+ void SetSampling(Float_t samp) { fSampling = samp; Info("SetSampling", "Sampling factor set to %f", fSampling) ; }
+
protected:
AliEMCALGeometry(const Text_t* name, const Text_t* title="") :
AliGeometry(name, title) {// ctor only for internal usage (singleton)
// of the singleton
static Bool_t fgInit;// Tells if geometry has been succesfully set up.
Float_t fAlFrontThick; // Thickness of the front Al face of the support box
- Float_t fPreShowerSintThick; // Thickness of the sintilator for the
- // preshower part of the calorimeter
- Float_t fFullShowerSintThick;// Thickness of the sintilaor for the full
- // shower part of the calorimeter
- Float_t fPbRadThickness; // Thickness of Pb radiators cm.
- Float_t fCuRadThickness; // Thickness of Cu radiators cm.
+
+ Float_t fPRPbRadThickness ; // cm, Thickness of the Pb radiators for the preshower section
+ Float_t fPRScintThick ; // cm, Thickness of the sintilator for the preshower section of the tower
+ Int_t fNPRLayers ; // number of scintillator layers in the preshower section
+
+ Float_t fECPbRadThickness ; // cm, Thickness of the Pb radiators for the EM calorimeter section
+ Float_t fECScintThick ; // cm, Thickness of the sintilator for the EM alorimeter section of the tower
+ Int_t fNECLayers ; // number of scintillator layers in the EM calorimeter section
+
+ Float_t fHCCuRadThickness ; // cm, Thickness of the Cu radiators.
+ Float_t fHCScintThick ; // cm, Thickness of the sintilator for the hadronic alorimeter section of the tower
+ Int_t fNHCLayers ; // number of scintillator layers in the hadronic calorimeter section
+
Float_t fArm1PhiMin; // Minimum angular position of EMCAL in Phi (degrees)
Float_t fArm1PhiMax; // Maximum angular position of EMCAL in Phi (degrees)
Float_t fArm1EtaMin; // Minimum pseudorapidity position of EMCAL in Eta
Float_t fArm1EtaMax; // Maximum pseudorapidity position of EMCAL in Eta
// It is assumed that Arm1 and Arm2 have the same following parameters
- Float_t fEnvelop[3]; // the GEANT TUB for the detector
- Float_t fIPDistance; // Radial Distance of the inner surface of the EMCAL
- Float_t fShellThickness; // Total thickness in (x,y) direction
- Float_t fZLength; // Total length in z direction
- Float_t fGap2Active; // Gap between the envelop and the active material
- Int_t fNECLayers; // Number of layers of material in the R direction for the electromagnetic calorimeter
- Int_t fNPRLayers; // Number of layers of material in the R direction for the preshower
- Int_t fNHCLayers; // Number of layers of material in the R direction for the hadron calorimeter
+ Float_t fEnvelop[3]; // the GEANT TUB for the detector
+ Float_t fIPDistance; // Radial Distance of the inner surface of the EMCAL
+ Float_t fShellThickness; // Total thickness in (x,y) direction
+ Float_t fZLength; // Total length in z direction
+ Float_t fGap2Active; // Gap between the envelop and the active material
Int_t fNZ; // Number of Towers in the Z direction
Int_t fNPhi; // Number of Towers in the Phi Direction
+ Float_t fSampling; // Sampling factor
+ Float_t fSummationFraction; // Fraction of the energy collected in the PRE section to be added to the EC section
ClassDef(AliEMCALGeometry,5) // EMCAL geometry class
git://git.uio.no / u / mrichter / AliRoot.git / commitdiff