-/**************************************************************************
- * 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. *
- **************************************************************************/
-
-//_________________________________________________________________________
-// Geometry class for PHOS version SUBATECH
-//*-- Author : Y. Schutz SUBATECH
-//////////////////////////////////////////////////////////////////////////////
+#ifndef ALIPHOSGEOMETRY_H
+#define ALIPHOSGEOMETRY_H
+/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
+ * See cxx source for full Copyright notice */
+
+////////////////////////////////////////////////
+// Geometry class for PHOS : singleton //
+// Version SUBATECH //
+// Author Y. Schutz SUBATECH //
+// geometry parametrized for any //
+// shape of modules //
+////////////////////////////////////////////////
// --- ROOT system ---
-#include "TVector3.h"
-#include "TRotation.h"
-
-// --- Standard library ---
-
-#include <iostream.h>
-#include "assert.h"
+#include "TNamed.h"
+#include "TString.h"
+#include "TObjArray.h"
+#include "TVector3.h"
// --- AliRoot header files ---
-#include "AliPHOSGeometry.h"
-#include "AliPHOSPpsdRecPoint.h"
-#include "AliConst.h"
-
-ClassImp(AliPHOSGeometry)
-
- AliPHOSGeometry * AliPHOSGeometry::fGeom = 0 ;
-
-//____________________________________________________________________________
-AliPHOSGeometry::~AliPHOSGeometry(void)
-{
- fRotMatrixArray->Delete() ;
- delete fRotMatrixArray ;
-}
-
-//____________________________________________________________________________
-Bool_t AliPHOSGeometry::AbsToRelNumbering(const Int_t AbsId, Int_t * RelId)
-{
- // RelId[0] = PHOS Module number 1:fNModules
- // RelId[1] = 0 if PbW04
- // = PPSD Module number 1:fNumberOfModulesPhi*fNumberOfModulesZ*2 (2->up and bottom level)
- // RelId[2] = Row number inside a PHOS or PPSD module
- // RelId[3] = Column number inside a PHOS or PPSD module
-
- Bool_t rv = kTRUE ;
- Float_t Id = AbsId ;
-
- Int_t PHOSModuleNumber = (Int_t)TMath:: Ceil( Id / ( GetNPhi() * GetNZ() ) ) ;
-
- if ( PHOSModuleNumber > GetNModules() ) { // its a PPSD pad
-
- Id -= GetNPhi() * GetNZ() * GetNModules() ;
- Float_t tempo = 2 * GetNumberOfModulesPhi() * GetNumberOfModulesZ() * GetNumberOfPadsPhi() * GetNumberOfPadsZ() ;
- RelId[0] = (Int_t)TMath::Ceil( Id / tempo ) ;
- Id -= ( RelId[0] - 1 ) * tempo ;
- RelId[1] = (Int_t)TMath::Ceil( Id / ( GetNumberOfPadsPhi() * GetNumberOfPadsZ() ) ) ;
- Id -= ( RelId[1] - 1 ) * GetNumberOfPadsPhi() * GetNumberOfPadsZ() ;
- RelId[2] = (Int_t)TMath::Ceil( Id / GetNumberOfPadsPhi() ) ;
- RelId[3] = (Int_t) ( Id - ( RelId[2] - 1 ) * GetNumberOfPadsPhi() ) ;
- }
- else { // its a PW04 crystal
-
- RelId[0] = PHOSModuleNumber ;
- RelId[1] = 0 ;
- Id -= ( PHOSModuleNumber - 1 ) * GetNPhi() * GetNZ() ;
- RelId[2] = (Int_t)TMath::Ceil( Id / GetNPhi() ) ;
- RelId[3] = (Int_t)( Id - ( RelId[2] - 1 ) * GetNPhi() ) ;
- }
- return rv ;
-}
-
-//____________________________________________________________________________
-void AliPHOSGeometry::GetGlobal(const AliRecPoint* RecPoint, TVector3 & gpos, TMatrix & gmat)
-{
-
- AliPHOSRecPoint * tmpPHOS = (AliPHOSRecPoint *) RecPoint ;
- TVector3 LocalPosition ;
-
- tmpPHOS->GetLocalPosition(gpos) ;
-
-
- if ( tmpPHOS->IsEmc() ) // it is a EMC crystal
- { gpos.SetY( -(GetIPtoOuterCoverDistance() + GetUpperPlateThickness() +
- GetSecondUpperPlateThickness() + GetUpperCoolingPlateThickness()) ) ;
-
- }
- else
- { // it is a PPSD pad
- AliPHOSPpsdRecPoint * tmpPpsd = (AliPHOSPpsdRecPoint *) RecPoint ;
- if (tmpPpsd->GetUp() ) // it is an upper module
- {
- gpos.SetY(-( GetIPtoOuterCoverDistance() - GetMicromegas2Thickness() -
- GetLeadToMicro2Gap() - GetLeadConverterThickness() -
- GetMicro1ToLeadGap() - GetMicromegas1Thickness() / 2.0 ) ) ;
- }
- else // it is a lower module
- gpos.SetY(-( GetIPtoOuterCoverDistance() - GetMicromegas2Thickness() / 2.0) ) ;
- }
-
- Float_t Phi = GetPHOSAngle( tmpPHOS->GetPHOSMod()) ;
- Double_t const RADDEG = 180.0 / kPI ;
- Float_t rPhi = Phi / RADDEG ;
-
- TRotation Rot ;
- Rot.RotateZ(-rPhi) ; // a rotation around Z by angle
-
- TRotation dummy = Rot.Invert() ; // to transform from original frame to rotate frame
- gpos.Transform(Rot) ; // rotate the baby
-}
-
-//____________________________________________________________________________
-void AliPHOSGeometry::GetGlobal(const AliRecPoint* RecPoint, TVector3 & gpos)
-{
- AliPHOSRecPoint * tmpPHOS = (AliPHOSRecPoint *) RecPoint ;
- TVector3 LocalPosition ;
- tmpPHOS->GetLocalPosition(gpos) ;
-
-
- if ( tmpPHOS->IsEmc() ) // it is a EMC crystal
- { gpos.SetY( -(GetIPtoOuterCoverDistance() + GetUpperPlateThickness() +
- GetSecondUpperPlateThickness() + GetUpperCoolingPlateThickness()) ) ;
- }
- else
- { // it is a PPSD pad
- AliPHOSPpsdRecPoint * tmpPpsd = (AliPHOSPpsdRecPoint *) RecPoint ;
- if (tmpPpsd->GetUp() ) // it is an upper module
- {
- gpos.SetY(-( GetIPtoOuterCoverDistance() - GetMicromegas2Thickness() -
- GetLeadToMicro2Gap() - GetLeadConverterThickness() -
- GetMicro1ToLeadGap() - GetMicromegas1Thickness() / 2.0 ) ) ;
- }
- else // it is a lower module
- gpos.SetY(-( GetIPtoOuterCoverDistance() - GetMicromegas2Thickness() / 2.0) ) ;
- }
-
- Float_t Phi = GetPHOSAngle( tmpPHOS->GetPHOSMod()) ;
- Double_t const RADDEG = 180.0 / kPI ;
- Float_t rPhi = Phi / RADDEG ;
-
- TRotation Rot ;
- Rot.RotateZ(-rPhi) ; // a rotation around Z by angle
-
- TRotation dummy = Rot.Invert() ; // to transform from original frame to rotate frame
- gpos.Transform(Rot) ; // rotate the baby
-}
-
-//____________________________________________________________________________
-void AliPHOSGeometry::Init(void)
-{
- fRotMatrixArray = new TObjArray(fNModules) ;
-
- cout << "PHOS geometry setup: parameters for option " << fName << " " << fTitle << endl ;
- if ( ((strcmp( fName, "default" )) == 0) || ((strcmp( fName, "GPS2" )) == 0) ) {
- fInit = kTRUE ;
- this->InitPHOS() ;
- this->InitPPSD() ;
- this->SetPHOSAngles() ;
- }
- else {
- fInit = kFALSE ;
- cout << "PHOS Geometry setup: option not defined " << fName << endl ;
- }
-}
-
-//____________________________________________________________________________
-void AliPHOSGeometry::InitPHOS(void)
-{
- // PHOS
-
- fNPhi = 64 ;
- fNZ = 64 ;
- fNModules = 5 ;
-
- fPHOSAngle[0] = 0.0 ; // Module position angles are set in CreateGeometry()
- fPHOSAngle[1] = 0.0 ;
- fPHOSAngle[2] = 0.0 ;
- fPHOSAngle[3] = 0.0 ;
-
- fXtlSize[0] = 2.2 ;
- fXtlSize[1] = 18.0 ;
- fXtlSize[2] = 2.2 ;
-
- // all these numbers coming next are subject to changes
-
- fOuterBoxThickness[0] = 2.8 ;
- fOuterBoxThickness[1] = 5.0 ;
- fOuterBoxThickness[2] = 5.0 ;
-
- fUpperPlateThickness = 4.0 ;
-
- fSecondUpperPlateThickness = 5.0 ;
-
- fCrystalSupportHeight = 6.95 ;
- fCrystalWrapThickness = 0.01 ;
- fCrystalHolderThickness = 0.005 ;
- fModuleBoxThickness = 2.0 ;
- fIPtoOuterCoverDistance = 447.0 ;
- fIPtoCrystalSurface = 460.0 ;
-
- fPinDiodeSize[0] = 1.0 ;
- fPinDiodeSize[1] = 0.1 ;
- fPinDiodeSize[2] = 1.0 ;
-
- fUpperCoolingPlateThickness = 0.06 ;
- fSupportPlateThickness = 10.0 ;
- fLowerThermoPlateThickness = 3.0 ;
- fLowerTextolitPlateThickness = 1.0 ;
- fGapBetweenCrystals = 0.03 ;
-
- fTextolitBoxThickness[0] = 1.5 ;
- fTextolitBoxThickness[1] = 0.0 ;
- fTextolitBoxThickness[2] = 3.0 ;
-
- fAirThickness[0] = 1.56 ;
- fAirThickness[1] = 20.5175 ;
- fAirThickness[2] = 2.48 ;
-
- Float_t XtalModulePhiSize = fNPhi * ( fXtlSize[0] + 2 * fGapBetweenCrystals ) ;
- Float_t XtalModuleZSize = fNZ * ( fXtlSize[2] + 2 * fGapBetweenCrystals ) ;
-
- // The next dimensions are calculated from the above parameters
-
- fOuterBoxSize[0] = XtalModulePhiSize + 2 * ( fAirThickness[0] + fModuleBoxThickness
- + fTextolitBoxThickness[0] + fOuterBoxThickness[0] ) ;
- fOuterBoxSize[1] = ( fXtlSize[1] + fCrystalSupportHeight + fCrystalWrapThickness + fCrystalHolderThickness )
- + 2 * (fAirThickness[1] + fModuleBoxThickness + fTextolitBoxThickness[1] + fOuterBoxThickness[1] ) ;
- fOuterBoxSize[2] = XtalModuleZSize + 2 * ( fAirThickness[2] + fModuleBoxThickness
- + fTextolitBoxThickness[2] + fOuterBoxThickness[2] ) ;
-
- fTextolitBoxSize[0] = fOuterBoxSize[0] - 2 * fOuterBoxThickness[0] ;
- fTextolitBoxSize[1] = fOuterBoxSize[1] - fOuterBoxThickness[1] - fUpperPlateThickness ;
- fTextolitBoxSize[2] = fOuterBoxSize[2] - 2 * fOuterBoxThickness[2] ;
-
- fAirFilledBoxSize[0] = fTextolitBoxSize[0] - 2 * fTextolitBoxThickness[0] ;
- fAirFilledBoxSize[1] = fTextolitBoxSize[1] - fSecondUpperPlateThickness ;
- fAirFilledBoxSize[2] = fTextolitBoxSize[2] - 2 * fTextolitBoxThickness[2] ;
-
-}
-
-//____________________________________________________________________________
-void AliPHOSGeometry::InitPPSD(void)
-{
- // PPSD
-
- fAnodeThickness = 0.0009 ;
- fAvalancheGap = 0.01 ;
- fCathodeThickness = 0.0009 ;
- fCompositeThickness = 0.3 ;
- fConversionGap = 0.3 ;
- fLeadConverterThickness = 0.56 ;
- fLeadToMicro2Gap = 0.1 ;
- fLidThickness = 0.2 ;
- fMicro1ToLeadGap = 0.1 ;
- fMicromegasWallThickness = 0.6 ;
- fNumberOfModulesPhi = 4 ;
- fNumberOfModulesZ = 4 ;
- fNumberOfPadsPhi = 24 ;
- fNumberOfPadsZ = 24 ;
- fPCThickness = 0.1 ;
- fPhiDisplacement = 0.8 ;
- fZDisplacement = 0.8 ;
-
- fMicromegas1Thickness = fLidThickness + 2 * fCompositeThickness + fCathodeThickness + fPCThickness
- + fAnodeThickness + fConversionGap + fAvalancheGap ;
- fMicromegas2Thickness = fMicromegas1Thickness ;
-
-
- fPPSDModuleSize[0] = 38.0 ;
- fPPSDModuleSize[1] = fMicromegas1Thickness ;
- fPPSDModuleSize[2] = 38.0 ;
+#include "AliGeometry.h"
+#include "AliPHOSRecPoint.h"
+
+class AliPHOSGeometry : public AliGeometry {
+
+public:
+
+ AliPHOSGeometry() {} ; // must be kept public for root persistency purposes
+ virtual ~AliPHOSGeometry(void) ;
+ static AliPHOSGeometry * GetInstance(const Text_t* name, const Text_t* title) ;
+ static AliPHOSGeometry * GetInstance() ;
+ virtual void GetGlobal(const AliRecPoint* RecPoint, TVector3 & gpos, TMatrix & gmat) ;
+ virtual void GetGlobal(const AliRecPoint* RecPoint, TVector3 & gpos) ;
+
+protected:
+
+ AliPHOSGeometry(const Text_t* name, const Text_t* title) : AliGeometry(name, title) { Init() ; }
+ void Init(void) ; // steering method for PHOS and CPV
+ void InitPHOS(void) ; // defines the various PHOS geometry parameters
+ void InitPPSD(void) ; // defines the various PPSD geometry parameters
+
+public:
+
+ // General
+
+ Bool_t AbsToRelNumbering(const Int_t AbsId, Int_t * RelId) ; // converts the absolute PHOS numbering to a relative
+ void RelPosInModule(const Int_t * RelId, Float_t & y, Float_t & z) ; // gets the position of element (pad or Xtal) relative to
+ // center of PHOS module
+ void RelPosInAlice(const Int_t AbsId, TVector3 & pos) ; // gets the position of element (pad or Xtal) relative to
+ // Alice
+ Bool_t RelToAbsNumbering(const Int_t * RelId, Int_t & AbsId) ; // converts the absolute PHOS numbering to a relative
+ // inlines
+
+ ///////////// PHOS related parameters
+
+ Bool_t IsInitialized(void) const { return fInit ; }
+ Float_t GetAirFilledBoxSize(Int_t index) const { return fAirFilledBoxSize[index] ;}
+ Float_t GetCrystalHolderThickness(void) const { return fCrystalHolderThickness ; }
+ Float_t GetCrystalSize(Int_t index) const { return fXtlSize[index] ; }
+ Float_t GetCrystalSupportHeight(void) const { return fCrystalSupportHeight ; }
+ Float_t GetCrystalWrapThickness(void) const { return fCrystalWrapThickness;}
+ Float_t GetGapBetweenCrystals(void) const { return fGapBetweenCrystals ; }
+ Float_t GetIPtoCrystalSurface(void) const { return fIPtoCrystalSurface ; }
+ Float_t GetIPtoOuterCoverDistance(void) const { return fIPtoOuterCoverDistance ; }
+ Float_t GetIPtoTopLidDistance(void) const { return fIPtoTopLidDistance ; }
+ Float_t GetLowerThermoPlateThickness(void) const { return fLowerThermoPlateThickness ; }
+ Float_t GetLowerTextolitPlateThickness(void) const { return fLowerTextolitPlateThickness ; }
+ Float_t GetModuleBoxThickness(void) const { return fModuleBoxThickness ; }
+ Int_t GetNPhi(void) const { return fNPhi ; }
+ Int_t GetNZ(void) const { return fNZ ; }
+ Int_t GetNModules(void) const { return fNModules ; }
+ Float_t GetOuterBoxSize(Int_t index) const { return fOuterBoxSize[index] ; }
+ Float_t GetOuterBoxThickness(Int_t index) const { return fOuterBoxThickness[index] ; }
+ Float_t GetPHOSAngle(Int_t index) const { return fPHOSAngle[index-1] ; }
+ Float_t GetPinDiodeSize(Int_t index) const { return fPinDiodeSize[index] ; }
+ Float_t GetSecondUpperPlateThickness(void) const { return fSecondUpperPlateThickness ; }
+ Float_t GetSupportPlateThickness(void) const { return fSupportPlateThickness ; }
+ Float_t GetTextolitBoxSize(Int_t index) const { return fTextolitBoxSize[index] ; }
+ Float_t GetTextolitBoxThickness(Int_t index) const { return fTextolitBoxThickness[index]; }
+ Float_t GetUpperPlateThickness(void) const { return fUpperPlateThickness ; }
+ Float_t GetUpperCoolingPlateThickness(void) const { return fUpperCoolingPlateThickness ; }
+
+private:
+
+ void SetPHOSAngles() ; // calculates the PHOS modules PHI angle
+
+public:
- fPPSDBoxSize[0] = fNumberOfModulesPhi * fPPSDModuleSize[0] + 2 * fPhiDisplacement ;
- fPPSDBoxSize[1] = fMicromegas2Thickness + fMicromegas2Thickness + fLeadConverterThickness + fMicro1ToLeadGap + fLeadToMicro2Gap ;
- fPPSDBoxSize[2] = fNumberOfModulesZ * fPPSDModuleSize[2] + 2 * fZDisplacement ;
-
- fIPtoTopLidDistance = fIPtoOuterCoverDistance - fPPSDBoxSize[1] - 1. ;
-
-}
-
-//____________________________________________________________________________
-AliPHOSGeometry * AliPHOSGeometry::GetInstance()
-{
- assert(fGeom!=0) ;
- return (AliPHOSGeometry *) fGeom ;
-}
-
-//____________________________________________________________________________
-AliPHOSGeometry * AliPHOSGeometry::GetInstance(const Text_t* name, const Text_t* title)
-{
- AliPHOSGeometry * rv = 0 ;
- if ( fGeom == 0 ) {
- fGeom = new AliPHOSGeometry(name, title) ;
- rv = (AliPHOSGeometry * ) fGeom ;
- }
- else {
- if ( strcmp(fGeom->GetName(), name) != 0 ) {
- cout << "AliPHOSGeometry <E> : current geometry is " << fGeom->GetName() << endl
- << " you cannot call " << name << endl ;
- }
- else
- rv = (AliPHOSGeometry *) fGeom ;
- }
- return rv ;
-}
-
-//____________________________________________________________________________
-Bool_t AliPHOSGeometry::RelToAbsNumbering(const Int_t * RelId, Int_t & AbsId)
-{
-
- // AbsId = 1:fNModules * fNPhi * fNZ -> PbWO4
- // AbsId = 1:fNModules * 2 * (fNumberOfModulesPhi * fNumberOfModulesZ) * fNumberOfPadsPhi * fNumberOfPadsZ -> PPSD
-
- Bool_t rv = kTRUE ;
-
- if ( RelId[1] > 0 ) { // its a PPSD pad
-
- AbsId = GetNPhi() * GetNZ() * GetNModules() // the offset to separate emcal crystals from PPSD pads
- + ( RelId[0] - 1 ) * GetNumberOfModulesPhi() * GetNumberOfModulesZ() // the pads offset of PHOS modules
- * GetNumberOfPadsPhi() * GetNumberOfPadsZ() * 2
- + ( RelId[1] - 1 ) * GetNumberOfPadsPhi() * GetNumberOfPadsZ() // the pads offset of PPSD modules
- + ( RelId[2] - 1 ) * GetNumberOfPadsPhi() // the pads offset of a PPSD row
- + RelId[3] ; // the column number
- }
- else {
- if ( RelId[1] == 0 ) { // its a Phos crystal
- AbsId = ( RelId[0] - 1 ) * GetNPhi() * GetNZ() // the offset of PHOS modules
- + ( RelId[2] - 1 ) * GetNPhi() // the offset of a xtal row
- + RelId[3] ; // the column number
- }
- }
-
- return rv ;
-}
-
-//____________________________________________________________________________
-
-void AliPHOSGeometry::RelPosInAlice(const Int_t Id, TVector3 & pos )
-{
- if (Id > 0) {
-
- Int_t RelId[4] ;
-
- AbsToRelNumbering(Id , RelId) ;
-
- Int_t PHOSModule = RelId[0] ;
-
-
- if ( RelId[1] == 0 ) // it is a PbW04 crystal
- { pos.SetY( -(GetIPtoOuterCoverDistance() + GetUpperPlateThickness()
- + GetSecondUpperPlateThickness() + GetUpperCoolingPlateThickness()) ) ;
- }
- if ( RelId[1] > 0 ) { // its a PPSD pad
- if ( RelId[1] > GetNumberOfModulesPhi() * GetNumberOfModulesZ() ) // its an bottom module
- {
- pos.SetY(-( GetIPtoOuterCoverDistance() - GetMicromegas2Thickness() / 2.0) ) ;
- }
- else // its an upper module
- pos.SetY(-( GetIPtoOuterCoverDistance() - GetMicromegas2Thickness() - GetLeadToMicro2Gap()
- - GetLeadConverterThickness() - GetMicro1ToLeadGap() - GetMicromegas1Thickness() / 2.0) ) ;
- }
-
- Float_t x, z ;
- RelPosInModule(RelId, x, z) ;
-
- pos.SetX(x);
- pos.SetZ(z);
-
-
- Float_t Phi = GetPHOSAngle( PHOSModule) ;
- Double_t const RADDEG = 180.0 / kPI ;
- Float_t rPhi = Phi / RADDEG ;
-
- TRotation Rot ;
- Rot.RotateZ(-rPhi) ; // a rotation around Z by angle
-
- TRotation dummy = Rot.Invert() ; // to transform from original frame to rotate frame
-
- pos.Transform(Rot) ; // rotate the baby
- }
- else {
- pos.SetX(0.);
- pos.SetY(0.);
- pos.SetZ(0.);
- }
-}
-
-//____________________________________________________________________________
-void AliPHOSGeometry::RelPosInModule(const Int_t * RelId, Float_t & x, Float_t & z)
-{
- Int_t PPSDModule ;
- Int_t Row = RelId[2] ; //offset along z axiz
- Int_t Column = RelId[3] ; //offset along x axiz
-
- Float_t PadSizeZ = GetPPSDModuleSize(2)/ GetNumberOfPadsZ();
- Float_t PadSizeX = GetPPSDModuleSize(0)/ GetNumberOfPadsPhi();
-
- if ( RelId[1] == 0 ) { // its a PbW04 crystal
- x = -( GetNPhi()/2. - Row + 0.5 ) * GetCrystalSize(0) ; // position ox Xtal with respect
- z = -( GetNZ() /2. - Column + 0.5 ) * GetCrystalSize(2) ; // of center of PHOS module
- }
- else {
- if ( RelId[1] > GetNumberOfModulesPhi() * GetNumberOfModulesZ() )
- PPSDModule = RelId[1]-GetNumberOfModulesPhi() * GetNumberOfModulesZ();
- else PPSDModule = RelId[1] ;
- Int_t ModRow = 1+(Int_t)TMath::Ceil( (Float_t)PPSDModule / GetNumberOfModulesPhi()-1. ) ;
- Int_t ModCol = PPSDModule - ( ModRow-1 ) * GetNumberOfModulesPhi() ;
- Float_t x0 = ( GetNumberOfModulesPhi() / 2. - ModRow + 0.5 ) * GetPPSDModuleSize(0) ;
- Float_t z0 = ( GetNumberOfModulesZ() / 2. - ModCol + 0.5 ) * GetPPSDModuleSize(2) ;
- x = - ( GetNumberOfPadsPhi()/2. - Row - 0.5 ) * PadSizeX + x0 ; // position of pad with respect
- z = - ( GetNumberOfPadsZ()/2. - Column - 0.5 ) * PadSizeZ + z0 ; // of center of PHOS module
- }
-}
-
-//____________________________________________________________________________
-void AliPHOSGeometry:: SetPHOSAngles()
-{
- Double_t const RADDEG = 180.0 / kPI ;
- Float_t PPHI = TMath::ATan( fOuterBoxSize[0] / ( 2.0 * fIPtoOuterCoverDistance ) ) ;
- PPHI *= RADDEG ;
-
- for( Int_t i = 1; i <= fNModules ; i++ ) {
- Float_t angle = PPHI * 2 * ( i - fNModules / 2.0 - 0.5 ) ;
- fPHOSAngle[i-1] = - angle ;
- }
-}
-
+ ///////////// PPSD (PHOS PRE SHOWER DETECTOR) related parameters
+
+
+ Float_t GetAnodeThickness(void) const { return fAnodeThickness ; }
+ Float_t GetAvalancheGap(void) const { return fAvalancheGap ; }
+ Float_t GetCathodeThickness(void) const { return fCathodeThickness ; }
+ Float_t GetCompositeThickness(void) const { return fCompositeThickness ; }
+ Float_t GetConversionGap(void) const { return fConversionGap ; }
+ Float_t GetLeadConverterThickness(void) const { return fLeadConverterThickness ; }
+ Float_t GetLeadToMicro2Gap(void) const { return fLeadToMicro2Gap ; }
+ Float_t GetLidThickness(void) const { return fLidThickness ; }
+ Float_t GetMicromegas1Thickness(void) const { return fMicromegas1Thickness ; }
+ Float_t GetMicromegas2Thickness(void) const { return fMicromegas2Thickness ; }
+ Float_t GetMicromegasWallThickness(void) const { return fMicromegasWallThickness ; }
+ Float_t GetMicro1ToLeadGap(void) const { return fMicro1ToLeadGap ; }
+ Int_t GetNumberOfPadsPhi(void) const { return fNumberOfPadsPhi ; }
+ Int_t GetNumberOfPadsZ(void) const { return fNumberOfPadsZ ; }
+ Int_t GetNumberOfModulesPhi(void) const { return fNumberOfModulesPhi ; }
+ Int_t GetNumberOfModulesZ(void) const { return fNumberOfModulesZ ; }
+ Float_t GetPCThickness(void) const { return fPCThickness ; }
+ Float_t GetPhiDisplacement(void) const { return fPhiDisplacement ; }
+ Float_t GetPPSDBoxSize(Int_t index) const { return fPPSDBoxSize[index] ; }
+ Float_t GetPPSDModuleSize(Int_t index) const { return fPPSDModuleSize[index] ; }
+ Float_t GetZDisplacement(void) const { return fZDisplacement ; }
+
+private:
+
+ ///////////// PHOS related parameters
+
+ Float_t fAirFilledBoxSize[3] ; // Air filled box containing one module
+ Float_t fAirThickness[3] ; // Space filled with air between the module box and the Textolit box
+ Float_t fCrystalSupportHeight ; // Height of the support of the crystal
+ Float_t fCrystalWrapThickness ; // Thickness of Tyvek wrapping the crystal
+ Float_t fCrystalHolderThickness ; // Titanium holder of the crystal
+ Float_t fGapBetweenCrystals ; // Total Gap between two adjacent crystals
+ Bool_t fInit ; // Tells if geometry has been succesfully set up
+ Float_t fIPtoOuterCoverDistance ; // Distances from interaction point to outer cover
+ Float_t fIPtoCrystalSurface ; // Distances from interaction point to Xtal surface
+ Float_t fModuleBoxThickness ; // Thickness of the thermo insulating box containing one crystals module
+ Float_t fLowerTextolitPlateThickness ; // Thickness of lower textolit plate
+ Float_t fLowerThermoPlateThickness ; // Thickness of lower thermo insulating plate
+ Int_t fNModules ; // Number of modules constituing PHOS
+ Int_t fNPhi ; // Number of crystal units in X (phi) direction
+ Int_t fNZ ; // Number of crystal units in Z direction
+ Float_t fOuterBoxSize[3] ; // Size of the outer thermo insulating foam box
+ Float_t fOuterBoxThickness[3] ; // Thickness of the outer thermo insulating foam box
+ Float_t fPHOSAngle[4] ; // Position angles of modules
+ Float_t fPinDiodeSize[3] ; // Size of the PIN Diode
+ TObjArray * fRotMatrixArray ; // Liste of rotation matrices (one per phos module)
+ Float_t fSecondUpperPlateThickness ; // Thickness of upper polystyrene foam plate
+ Float_t fSupportPlateThickness ; // Thickness of the Aluminium support plate
+ Float_t fUpperCoolingPlateThickness ; // Thickness of the upper cooling plate
+ Float_t fUpperPlateThickness ; // Thickness of the uper thermo insulating foam plate
+ Float_t fTextolitBoxSize[3] ; // Size of the Textolit box inside the insulating foam box
+ Float_t fTextolitBoxThickness[3] ; // Thicknesses of th Textolit box
+ Float_t fXtlSize[3] ; // PWO4 crystal dimensions
+
+
+ ///////////// PPSD (PHOS PRE SHOWER DETECTOR) related parameters
+
+ Float_t fAnodeThickness ; // Thickness of the copper layer which makes the anode
+ Float_t fAvalancheGap ; // Thickness of the gas in the avalanche stage
+ Float_t fCathodeThickness ; // Thickeness of composite material ensuring rigidity of cathode
+ Float_t fCompositeThickness ; // Thickeness of composite material ensuring rigidity of anode
+ Float_t fConversionGap ; // Thickness of the gas in the conversion stage
+ Float_t fIPtoTopLidDistance ; // Distance from interaction point to top lid of PPSD
+ Float_t fLeadConverterThickness ; // Thickness of the Lead converter
+ Float_t fLeadToMicro2Gap ; // Thickness of the air gap between the Lead and Micromegas 2
+ Float_t fLidThickness ; // Thickness of top lid
+ Float_t fMicromegas1Thickness ; // Thickness of the first downstream Micromegas
+ Float_t fMicromegas2Thickness ; // Thickness of the second downstream Micromegas
+ Float_t fMicromegasWallThickness ; // Thickness of the Micromegas leak tight box
+ Float_t fMicro1ToLeadGap ; // Thickness of the air gap between Micromegas 1 and the Lead
+ Int_t fNumberOfPadsPhi ; // Number of pads on a micromegas module ;
+ Int_t fNumberOfPadsZ ; // Number of pads on a micromegas module ;
+ Int_t fNumberOfModulesPhi ; // Number of micromegas modules in phi
+ Int_t fNumberOfModulesZ ; // Number of micromegas modules in z
+ Float_t fPCThickness ; // Thickness of the printed circuit board of the anode
+ Float_t fPhiDisplacement ; // Phi displacement of micromegas1 with respect to micromegas2
+ Float_t fPPSDBoxSize[3] ; // Size of large box which contains PPSD; matches PHOS module size
+ Float_t fPPSDModuleSize[3] ; // Size of an individual micromegas module
+ Float_t fZDisplacement ; // Z displacement of micromegas1 with respect to micromegas2
+
+ static AliPHOSGeometry * fGeom ; // pointer to the unique instance of the singleton
+
+ ClassDef(AliPHOSGeometry,1) // PHOS geometry class , version subatech
+
+} ;
+
+#endif // AliPHOSGEOMETRY_H