/* 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 //
-////////////////////////////////////////////////
+/* $Id$ */
+
+//_________________________________________________________________________
+// Geometry class for PHOS : singleton
+// PHOS consists of the electromagnetic calorimeter (EMCA)
+// and a charged particle veto either in the Subatech's version (PPSD)
+// or in the IHEP's one (CPV).
+// The EMCA/PPSD/CPV modules are parametrized so that any configuration
+// can be easily implemented
+// The title is used to identify the version of CPV used.
+//
+//*-- Author: Yves Schutz (SUBATECH)
// --- ROOT system ---
-#include "TNamed.h"
-#include "TString.h"
-#include "TObjArray.h"
-#include "TVector3.h"
-
// --- AliRoot header files ---
#include "AliGeometry.h"
-#include "AliPHOSRecPoint.h"
+#include "AliPHOSEMCAGeometry.h"
+#include "AliPHOSCPVGeometry.h"
+#include "AliPHOSSupportGeometry.h"
-static const TString kDegre("deg") ;
-static const TString kRadian("rad") ;
+class AliPHOSRecPoint;
+class TVector3;
class AliPHOSGeometry : public AliGeometry {
public:
- AliPHOSGeometry() {} ; // must be kept public for root persistency purposes
+ AliPHOSGeometry() ;
+ AliPHOSGeometry(const AliPHOSGeometry & geom) ;
+
virtual ~AliPHOSGeometry(void) ;
- static AliPHOSGeometry * GetInstance(const Text_t* name, const Text_t* title) ;
+ 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:
-
+ virtual void GetGlobal(const AliRecPoint* RecPoint, TVector3 & gpos, TMatrixF & /* gmat */) const
+ {GetGlobal(RecPoint,gpos); }
+ virtual void GetGlobal(const AliRecPoint* RecPoint, TVector3 & gpos) const ;
+ virtual void GetGlobalPHOS(const AliPHOSRecPoint* RecPoint, TVector3 & gpos) const ;
+ virtual void GetGlobalPHOS(const AliPHOSRecPoint* RecPoint, TVector3 & gpos, TMatrixF & /* gmat */) const
+ {GetGlobalPHOS(RecPoint,gpos); }
+ virtual Bool_t Impact(const TParticle * particle) const ;
+
+ AliPHOSGeometry & operator = (const AliPHOSGeometry & /*rvalue*/) {
+ Fatal("operator =", "not implemented") ;
+ return *this ;
+ }
+
// General
- Bool_t AbsToRelNumbering(const Int_t AbsId, Int_t * RelId) ; // converts the absolute PHOS numbering to a relative
- void EmcModuleCoverage(const Int_t m, Double_t & tm, Double_t & tM, Double_t & pm, Double_t & pM, Option_t * opt = kRadian);
- // calculates the angular coverage in theta and phi of a EMC module
- void EmcXtalCoverage(Double_t & theta, Double_t & phi, Option_t * opt = kRadian) ;
- // calculates the angular coverage in theta and phi of a
- // single crystal in a EMC module
- void ImpactOnEmc(const Double_t theta, const Double_t phi, Int_t & ModuleNumber, Double_t & x, Double_t & z) ;
- // calculates the impact coordinates of a neutral particle
- // emitted in direction theta and phi in ALICE
- 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 ; }
+ static TString Degre(void) { return TString("deg") ; } // a global for degree (deg)
+
+ static TString Radian(void){ return TString("rad") ; } // a global for radian (rad)
+
+ Bool_t AbsToRelNumbering(Int_t AbsId, Int_t * RelId) const ;
+ // converts the absolute PHOS numbering to a relative
+
+// void EmcModuleCoverage(Int_t m, Double_t & tm, Double_t & tM, Double_t & pm,
+// Double_t & pM, Option_t * opt = Radian() ) const ;
+// // calculates the angular coverage in theta and phi of a EMC module
+// void EmcXtalCoverage(Double_t & theta, Double_t & phi, Option_t * opt = Radian() ) const ;
+// // calculates the angular coverage in theta and phi of a
+// // single crystal in a EMC module
+
+ void ImpactOnEmc(Double_t * vtx, Double_t theta, Double_t phi,
+ Int_t & ModuleNumber, Double_t & z, Double_t & x) const ;
+// void ImpactOnEmc(const TVector3& vec, Int_t & ModuleNumber,
+// Double_t & z, Double_t & x) const ;
+// void ImpactOnEmc(const TParticle& p, Int_t & ModuleNumber,
+// Double_t & z, Double_t & x) const ;
+// // calculates the impact coordinates of a neutral particle
+// // emitted in direction theta and phi in ALICE
+ Bool_t IsInEMC(Int_t id) const { if (id > GetNModules() * GetNCristalsInModule() ) return kFALSE; return kTRUE; }
+ void RelPosInModule(const Int_t * RelId, Float_t & y, Float_t & z) const ;
+ // gets the position of element (pad or Xtal) relative to
+ // center of PHOS module
+ void RelPosInAlice(Int_t AbsId, TVector3 & pos) const ;
+ // gets the position of element (pad or Xtal) relative to Alice
+ Bool_t RelToAbsNumbering(const Int_t * RelId, Int_t & AbsId) const ;
+ // converts the absolute PHOS numbering to a relative
+ void RelPosToAbsId(Int_t module, Double_t x, Double_t z, Int_t & AbsId) const;
+ // converts local PHOS-module (x, z) coordinates to absId
+ void GetIncidentVector(const TVector3 &vtx, Int_t module, Float_t x, Float_t z, TVector3& vInc) const ;
+ //calculates vector from vertex to current point in module local frame
+ void Local2Global(Int_t module, Float_t x, Float_t z, TVector3 &globaPos) const ;
+
+ Bool_t IsInitialized(void) const { return fgInit ; }
+
+ // Return general PHOS parameters
+ Int_t GetNModules(void) const { return fNModules ; }
+ Float_t GetPHOSAngle(Int_t index) const { return fPHOSAngle[index-1] ; }
+ Float_t* GetPHOSParams(void) { return fPHOSParams;} //Half-sizes of PHOS trapecoid
+ Float_t GetIPtoUpperCPVsurface(void) const { return fIPtoUpperCPVsurface ; }
+ Float_t GetOuterBoxSize(Int_t index) const { return 2.*fPHOSParams[index]; }
+ Float_t GetCrystalSize(Int_t index) const { return fGeometryEMCA->GetCrystalSize(index) ; }
+ Float_t GetCellStep(void) const { return 2.*fGeometryEMCA->GetAirCellHalfSize()[0];}
+
+ Float_t GetModuleCenter(Int_t module, Int_t axis) const {
+ return fModuleCenter[module][axis];}
+ Float_t GetModuleAngle(Int_t module, Int_t axis, Int_t angle) const {
+ return fModuleAngle[module][axis][angle];}
+
-private:
+ // Return ideal EMCA geometry parameters
+
+ AliPHOSEMCAGeometry * GetEMCAGeometry() const {return fGeometryEMCA ;}
+ Float_t GetIPtoCrystalSurface(void) const { return fGeometryEMCA->GetIPtoCrystalSurface() ; }
+ Float_t GetIPtoOuterCoverDistance(void) const { return fGeometryEMCA->GetIPtoOuterCoverDistance() ; }
+ Int_t GetNPhi(void) const { return fGeometryEMCA->GetNPhi() ; }
+ Int_t GetNZ(void) const { return fGeometryEMCA->GetNZ() ; }
+ Int_t GetNCristalsInModule(void) const { return fGeometryEMCA->GetNPhi() * fGeometryEMCA->GetNZ() ; }
+
+ // Return ideal CPV geometry parameters
+ Int_t GetNumberOfCPVLayers(void) const { return fGeometryCPV ->GetNumberOfCPVLayers(); }
+ Float_t GetCPVActiveSize(Int_t index) const { return fGeometryCPV->GetCPVActiveSize(index); }
+ Int_t GetNumberOfCPVChipsPhi(void) const { return fGeometryCPV->GetNumberOfCPVChipsPhi(); }
+ Int_t GetNumberOfCPVChipsZ(void) const { return fGeometryCPV->GetNumberOfCPVChipsZ(); }
+ Int_t GetNumberOfCPVPadsPhi(void) const { return fGeometryCPV->GetNumberOfCPVPadsPhi(); }
+ Int_t GetNumberOfCPVPadsZ(void) const { return fGeometryCPV->GetNumberOfCPVPadsZ(); }
+ Float_t GetPadSizePhi(void) const { return fGeometryCPV->GetCPVPadSizePhi(); }
+ Float_t GetPadSizeZ(void) const { return fGeometryCPV->GetCPVPadSizeZ(); }
+ Float_t GetGassiplexChipSize(Int_t index) const { return fGeometryCPV->GetGassiplexChipSize(index); }
+ Float_t GetCPVGasThickness(void) const { return fGeometryCPV->GetCPVGasThickness(); }
+ Float_t GetCPVTextoliteThickness(void) const { return fGeometryCPV->GetCPVTextoliteThickness(); }
+ Float_t GetCPVCuNiFoilThickness(void) const { return fGeometryCPV->GetCPVCuNiFoilThickness(); }
+ Float_t GetFTPosition(Int_t index) const { return fGeometryCPV->GetFTPosition(index); }
+ Float_t GetCPVFrameSize(Int_t index) const { return fGeometryCPV->GetCPVFrameSize(index); }
+ Float_t GetCPVBoxSize(Int_t index) const { return fGeometryCPV ->GetCPVBoxSize(index); }
+ Float_t GetIPtoCPVDistance(void) const { return GetIPtoOuterCoverDistance() -
+ GetCPVBoxSize(1) - 1.0; }
+
+
+ // Return real CPV geometry parameters
+ void GetModuleCenter(TVector3& center, const char *det, Int_t module) const;
+ void Global2Local(TVector3& localPosition,
+ const TVector3& globalPosition,
+ Int_t module) const;
+
+ // Return PHOS' support geometry parameters
+
+ Float_t GetRailOuterSize(Int_t index) const { return fGeometrySUPP->GetRailOuterSize(index); }
+ Float_t GetRailPart1 (Int_t index) const { return fGeometrySUPP->GetRailPart1 (index); }
+ Float_t GetRailPart2 (Int_t index) const { return fGeometrySUPP->GetRailPart2 (index); }
+ Float_t GetRailPart3 (Int_t index) const { return fGeometrySUPP->GetRailPart3 (index); }
+ Float_t GetRailPos (Int_t index) const { return fGeometrySUPP->GetRailPos (index); }
+ Float_t GetRailLength (void) const { return fGeometrySUPP->GetRailLength (); }
+ Float_t GetDistanceBetwRails(void) const { return fGeometrySUPP->GetDistanceBetwRails(); }
+ Float_t GetRailsDistanceFromIP(void) const { return fGeometrySUPP->GetRailsDistanceFromIP();}
+ Float_t GetRailRoadSize (Int_t index) const { return fGeometrySUPP->GetRailRoadSize (index); }
+ Float_t GetCradleWallThickness(void) const { return fGeometrySUPP->GetCradleWallThickness();}
+ Float_t GetCradleWall (Int_t index) const { return fGeometrySUPP->GetCradleWall (index); }
+ Float_t GetCradleWheel (Int_t index) const { return fGeometrySUPP->GetCradleWheel (index); }
+ void Init(void) ; // steering method for PHOS and PPSD/CPV
- void SetPHOSAngles() ; // calculates the PHOS modules PHI angle
-public:
-
- ///////////// 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 ; }
+protected:
+ AliPHOSGeometry(const Text_t* name, const Text_t* title="") ;
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
+
+ Int_t fNModules ; // Number of modules constituing PHOS
+ Float_t fAngle ; // Position angles between modules
+ Float_t *fPHOSAngle ; //[fNModules] Position angles of modules
+ Float_t fPHOSParams[4] ; // Half-sizes of PHOS trapecoid
+ Float_t fIPtoUpperCPVsurface; // Minimal distance from IP to PHOS
+ Float_t fCrystalShift ; //Distance from crystal center to front surface
+ Float_t fCryCellShift ; //Distance from crystal center to front surface
+ TObjArray *fRotMatrixArray ; // Liste of rotation matrices (one per phos module)
+ AliPHOSEMCAGeometry *fGeometryEMCA ; // Geometry object for Electromagnetic calorimeter
+ AliPHOSCPVGeometry *fGeometryCPV ; // Geometry object for CPV (IHEP)
+ AliPHOSSupportGeometry *fGeometrySUPP ; // Geometry object for PHOS support
+ Float_t fModuleCenter[5][3]; // xyz-position of the module center
+ Float_t fModuleAngle[5][3][2]; // polar and azymuth angles for 3 axes of modules
+
+ void SetPHOSAngles(); // calculates the PHOS modules PHI angle
+
+ static AliPHOSGeometry * fgGeom ; // pointer to the unique instance of the singleton
+ static Bool_t fgInit ; // Tells if geometry has been succesfully set up
+
+ ClassDef(AliPHOSGeometry,2) // PHOS geometry class
} ;
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