1 #ifndef ALIPHOSGEOMETRY_H
2 #define ALIPHOSGEOMETRY_H
3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
8 //_________________________________________________________________________
9 // Geometry class for PHOS : singleton
10 // The EMC modules are parametrized so that any configuration can be easily implemented
11 // The title is used to identify the type of CPV used. PPSD and CPV are implemented
13 //*-- Author: Yves Schutz (SUBATECH)
17 // --- ROOT system ---
21 #include "TObjArray.h"
24 // --- AliRoot header files ---
26 #include "AliGeometry.h"
27 #include "AliPHOSEMCAGeometry.h"
28 #include "AliPHOSCPVGeometry.h"
29 #include "AliPHOSPPSDGeometry.h"
30 #include "AliPHOSRecPoint.h"
33 class AliPHOSGeometry : public AliGeometry {
39 // must be kept public for root persistency purposes, but should never be called by the outside world
43 AliPHOSGeometry(const AliPHOSGeometry & geom) {
44 // cpy ctor requested by Coding Convention but not yet needed
48 virtual ~AliPHOSGeometry(void) ;
49 static AliPHOSGeometry * GetInstance(const Text_t* name, const Text_t* title="") ;
50 static AliPHOSGeometry * GetInstance() ;
51 virtual void GetGlobal(const AliRecPoint* RecPoint, TVector3 & gpos, TMatrix & gmat) const ;
52 virtual void GetGlobal(const AliRecPoint* RecPoint, TVector3 & gpos) const ;
54 AliPHOSGeometry & operator = (const AliPHOSGeometry & rvalue) const {
55 // assignement operator requested by coding convention but not needed
57 return *(GetInstance()) ;
62 static TString Degre(void) {
63 // a global for degree (deg)
64 return TString("deg") ;
67 static TString Radian(void) {
68 // a global for radian (rad)
69 return TString("rad") ;
72 Bool_t AbsToRelNumbering(const Int_t AbsId, Int_t * RelId) ; // converts the absolute PHOS numbering to a relative
74 void EmcModuleCoverage(const Int_t m, Double_t & tm, Double_t & tM, Double_t & pm, Double_t & pM, Option_t * opt = Radian() );
75 // calculates the angular coverage in theta and phi of a EMC module
76 void EmcXtalCoverage(Double_t & theta, Double_t & phi, Option_t * opt = Radian() ) ;
77 // calculates the angular coverage in theta and phi of a
78 // single crystal in a EMC module
80 void ImpactOnEmc(const Double_t theta, const Double_t phi, Int_t & ModuleNumber, Double_t & x, Double_t & z) ;
81 // calculates the impact coordinates of a neutral particle
82 // emitted in direction theta and phi in ALICE
84 void RelPosInModule(const Int_t * RelId, Float_t & y, Float_t & z) ; // gets the position of element (pad or Xtal) relative to
85 // center of PHOS module
86 void RelPosInAlice(const Int_t AbsId, TVector3 & pos) ; // gets the position of element (pad or Xtal) relative to
88 Bool_t RelToAbsNumbering(const Int_t * RelId, Int_t & AbsId) ; // converts the absolute PHOS numbering to a relative
90 Bool_t IsInitialized(void) const { return fgInit ; }
92 // Return general PHOS parameters
94 Int_t GetNModules(void) const { return fNModules ; }
95 Float_t GetPHOSAngle(Int_t index) const { return fPHOSAngle[index-1] ; }
97 // Return EMCA geometrical parameters
99 Float_t GetOuterBoxSize(Int_t index) const { return fGeometryEMCA->GetOuterBoxSize(index); }
100 Float_t GetAirFilledBoxSize(Int_t index) const { return fGeometryEMCA->GetAirFilledBoxSize(index) ; }
101 Float_t GetCrystalHolderThickness(void) const { return fGeometryEMCA->GetCrystalHolderThickness() ; }
102 Float_t GetCrystalSize(Int_t index) const { return fGeometryEMCA->GetCrystalSize(index) ; }
103 Float_t GetCrystalSupportHeight(void) const { return fGeometryEMCA->GetCrystalSupportHeight() ; }
104 Float_t GetCrystalWrapThickness(void) const { return fGeometryEMCA->GetCrystalWrapThickness() ; }
105 Float_t GetGapBetweenCrystals(void) const { return fGeometryEMCA->GetGapBetweenCrystals() ; }
106 Float_t GetIPtoCrystalSurface(void) const { return fGeometryEMCA->GetIPtoCrystalSurface() ; }
107 Float_t GetIPtoOuterCoverDistance(void) const { return fGeometryEMCA->GetIPtoOuterCoverDistance() ; }
108 Float_t GetLowerThermoPlateThickness(void) const { return fGeometryEMCA->GetLowerThermoPlateThickness() ; }
109 Float_t GetLowerTextolitPlateThickness(void) const { return fGeometryEMCA->GetLowerTextolitPlateThickness() ; }
110 Float_t GetModuleBoxThickness(void) const { return fGeometryEMCA->GetModuleBoxThickness() ; }
111 Int_t GetNPhi(void) const { return fGeometryEMCA->GetNPhi() ; }
112 Int_t GetNZ(void) const { return fGeometryEMCA->GetNZ() ; }
113 Float_t GetOuterBoxThickness(Int_t index) const { return fGeometryEMCA->GetOuterBoxThickness(index) ; }
114 Float_t GetPinDiodeSize(Int_t index) const { return fGeometryEMCA->GetPinDiodeSize(index) ; }
115 Float_t GetSecondUpperPlateThickness(void) const { return fGeometryEMCA->GetSecondUpperPlateThickness() ; }
116 Float_t GetSupportPlateThickness(void) const { return fGeometryEMCA->GetSupportPlateThickness() ; }
117 Float_t GetTextolitBoxSize(Int_t index) const { return fGeometryEMCA->GetTextolitBoxSize(index) ; }
118 Float_t GetTextolitBoxThickness(Int_t index) const { return fGeometryEMCA->GetTextolitBoxThickness(index); }
119 Float_t GetUpperPlateThickness(void) const { return fGeometryEMCA->GetUpperPlateThickness() ; }
120 Float_t GetUpperCoolingPlateThickness(void) const { return fGeometryEMCA->GetUpperCoolingPlateThickness() ; }
122 // Return PPSD geometrical parameters
124 Float_t GetAnodeThickness(void) const { return ((AliPHOSPPSDGeometry*) fGeometryCPV)->GetAnodeThickness(); }
125 Float_t GetAvalancheGap(void) const { return ((AliPHOSPPSDGeometry*) fGeometryCPV)->GetAvalancheGap(); }
126 Float_t GetCathodeThickness(void) const { return ((AliPHOSPPSDGeometry*) fGeometryCPV)->GetCathodeThickness(); }
127 Float_t GetCompositeThickness(void) const { return ((AliPHOSPPSDGeometry*) fGeometryCPV)->GetCompositeThickness(); }
128 Float_t GetConversionGap(void) const { return ((AliPHOSPPSDGeometry*) fGeometryCPV)->GetConversionGap(); }
129 Float_t GetLeadConverterThickness(void) const { return ((AliPHOSPPSDGeometry*) fGeometryCPV)->GetLeadConverterThickness(); }
130 Float_t GetLeadToMicro2Gap(void) const { return ((AliPHOSPPSDGeometry*) fGeometryCPV)->GetLeadToMicro2Gap(); }
131 Float_t GetLidThickness(void) const { return ((AliPHOSPPSDGeometry*) fGeometryCPV)->GetLidThickness(); }
132 Float_t GetMicromegas1Thickness(void) const { return ((AliPHOSPPSDGeometry*) fGeometryCPV)->GetMicromegas1Thickness(); }
133 Float_t GetMicromegas2Thickness(void) const { return ((AliPHOSPPSDGeometry*) fGeometryCPV)->GetMicromegas2Thickness(); }
134 Float_t GetMicromegasWallThickness(void) const { return ((AliPHOSPPSDGeometry*) fGeometryCPV)->GetMicromegasWallThickness();}
135 Float_t GetMicro1ToLeadGap(void) const { return ((AliPHOSPPSDGeometry*) fGeometryCPV)->GetMicro1ToLeadGap(); }
136 Float_t GetPCThickness(void) const { return ((AliPHOSPPSDGeometry*) fGeometryCPV)->GetPCThickness(); }
137 Float_t GetPhiDisplacement(void) const { return ((AliPHOSPPSDGeometry*) fGeometryCPV)->GetPhiDisplacement(); }
138 Float_t GetPPSDModuleSize(Int_t index) const { return ((AliPHOSPPSDGeometry*) fGeometryCPV)->GetPPSDModuleSize(index); }
139 Float_t GetZDisplacement(void) const { return ((AliPHOSPPSDGeometry*) fGeometryCPV)->GetZDisplacement(); }
141 // Return CPV geometrical parameters
143 Bool_t IsLeadConverterExists(void) const { return ((AliPHOSCPVGeometry*) fGeometryCPV)->IsLeadConverterExists(); }
144 Float_t GetCPVActiveSize(Int_t index) const { return ((AliPHOSCPVGeometry*) fGeometryCPV)->GetCPVActiveSize(index); }
145 Int_t GetNumberOfCPVChipsPhi(void) const { return ((AliPHOSCPVGeometry*) fGeometryCPV)->GetNumberOfCPVChipsPhi(); }
146 Int_t GetNumberOfCPVChipsZ(void) const { return ((AliPHOSCPVGeometry*) fGeometryCPV)->GetNumberOfCPVChipsZ(); }
147 Float_t GetGassiplexChipSize(Int_t index) const { return ((AliPHOSCPVGeometry*) fGeometryCPV)->GetGassiplexChipSize(index); }
148 Float_t GetCPVGasThickness(void) const { return ((AliPHOSCPVGeometry*) fGeometryCPV)->GetCPVGasThickness(); }
149 Float_t GetCPVTextoliteThickness(void) const { return ((AliPHOSCPVGeometry*) fGeometryCPV)->GetCPVTextoliteThickness(); }
150 Float_t GetCPVCuNiFoilThickness(void) const { return ((AliPHOSCPVGeometry*) fGeometryCPV)->GetCPVCuNiFoilThickness(); }
151 Float_t GetFTPosition(Int_t index) const { return ((AliPHOSCPVGeometry*) fGeometryCPV)->GetFTPosition(index); }
152 Float_t GetCPVFrameSize(Int_t index) const { return ((AliPHOSCPVGeometry*) fGeometryCPV)->GetCPVFrameSize(index); }
154 // Common PPSD and CPV parameters
156 Int_t GetNumberOfCPVLayers(void) const {
157 if (strcmp(fName,"GPS2")==0) return 2;
158 else if (strcmp(fName,"IHEP")==0) return ((AliPHOSCPVGeometry*) fGeometryCPV)->GetNumberOfCPVLayers();
162 Float_t GetCPVBoxSize(Int_t index) const {
163 if (strcmp(fName,"GPS2")==0) return ((AliPHOSPPSDGeometry*) fGeometryCPV)->GetCPVBoxSize(index);
164 else if (strcmp(fName,"IHEP")==0) return ((AliPHOSCPVGeometry* ) fGeometryCPV)->GetCPVBoxSize(index);
168 Int_t GetNumberOfModulesPhi(void) const {
169 if (strcmp(fName,"GPS2")==0) return ((AliPHOSPPSDGeometry*) fGeometryCPV)->GetNumberOfModulesPhi();
170 else if (strcmp(fName,"IHEP")==0) return 1;
174 Int_t GetNumberOfModulesZ(void) const {
175 if (strcmp(fName,"GPS2")==0) return ((AliPHOSPPSDGeometry*) fGeometryCPV)->GetNumberOfModulesZ();
176 else if (strcmp(fName,"IHEP")==0) return 1;
180 Int_t GetNumberOfPadsPhi(void) const {
181 if (strcmp(fName,"GPS2")==0) return ((AliPHOSPPSDGeometry*) fGeometryCPV)->GetNumberOfPadsPhi();
182 else if (strcmp(fName,"IHEP")==0) return ((AliPHOSCPVGeometry* ) fGeometryCPV)->GetNumberOfCPVPadsPhi();
186 Int_t GetNumberOfPadsZ(void) const {
187 if (strcmp(fName,"GPS2")==0) return ((AliPHOSPPSDGeometry*) fGeometryCPV)->GetNumberOfPadsZ();
188 else if (strcmp(fName,"IHEP")==0) return ((AliPHOSCPVGeometry* ) fGeometryCPV)->GetNumberOfCPVPadsZ();
192 Float_t GetPadSizePhi(void) const {
193 if (strcmp(fName,"GPS2")==0) return GetPPSDModuleSize(0) / GetNumberOfPadsPhi();
194 else if (strcmp(fName,"IHEP")==0) return ((AliPHOSCPVGeometry*) fGeometryCPV)->GetCPVPadSizePhi();
198 Float_t GetPadSizeZ(void) const {
199 if (strcmp(fName,"GPS2")==0) return GetPPSDModuleSize(2) / GetNumberOfPadsZ();
200 else if (strcmp(fName,"IHEP")==0) return ((AliPHOSCPVGeometry*) fGeometryCPV)->GetCPVPadSizeZ();
204 // Mixed EMCA and PPSD parameters
206 Float_t GetIPtoPpsdUp(void) const {
207 return (GetIPtoOuterCoverDistance() - GetCPVBoxSize(1) + GetPPSDModuleSize(1)/2 ); }
208 Float_t GetIPtoTopLidDistance(void) const {
209 return GetIPtoOuterCoverDistance() - GetCPVBoxSize(1) - 1. ; }
210 Float_t GetIPtoPpsdLow(void) const {
211 return (GetIPtoOuterCoverDistance() - GetPPSDModuleSize(1)/2 ); }
213 // Mixed EMCA and CPV parameters
215 Float_t GetIPtoCPVDistance(void) const {
216 return GetIPtoOuterCoverDistance() - GetCPVBoxSize(1) - 1.0; }
221 AliPHOSGeometry(const Text_t* name, const Text_t* title="") : AliGeometry(name, title) {
222 // ctor only for internal usage (singleton)
225 void Init(void) ; // steering method for PHOS and PPSD/CPV
229 Int_t fNModules ; // Number of modules constituing PHOS
230 Float_t *fPHOSAngle ; //[fNModules] Position angles of modules
231 TObjArray *fRotMatrixArray ; // Liste of rotation matrices (one per phos module)
232 AliPHOSEMCAGeometry *fGeometryEMCA ; // Geometry object for Electromagnetic calorimeter
233 AliPHOSCPVBaseGeometry *fGeometryCPV ; // Geometry object for CPV (either GPS2 or IHEP)
235 void SetPHOSAngles(); // calculates the PHOS modules PHI angle
237 static AliPHOSGeometry * fgGeom ; // pointer to the unique instance of the singleton
238 static Bool_t fgInit ; // Tells if geometry has been succesfully set up
240 ClassDef(AliPHOSGeometry,1) // PHOS geometry class
244 #endif // AliPHOSGEOMETRY_H