1 #ifndef AliHMPIDParam_h
2 #define AliHMPIDParam_h
3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
9 #include <TNamed.h> //base class
10 #include <TGeoManager.h> //Instance()
11 #include <TGeoMatrix.h> //Instance()
12 #include <TVector3.h> //Lors2Mars() Mars2Lors()
14 // Class providing all the needed parametrised information
15 // to construct the geometry, to define segmentation and to provide response model
16 // In future will also provide all the staff needed for alignment and calibration
18 class AliHMPIDParam :public TNamed
22 virtual ~AliHMPIDParam() {for(Int_t i=0;i<7;i++) delete fM[i]; delete fgInstance; fgInstance=0;}
23 void Print(Option_t *opt="") const; //print current parametrization
24 static inline AliHMPIDParam* Instance(); //pointer to AliHMPIDParam singleton
25 static inline AliHMPIDParam* InstanceNoGeo(); //pointer to AliHMPIDParam singleton without geometry.root for MOOD, displays, ...
27 enum EChamberData{kMinCh=0,kMaxCh=6,kMinPc=0,kMaxPc=5}; //Segmenation
28 enum EPadxData{kPadPcX=80,kMinPx=0,kMaxPx=79,kMaxPcx=159}; //Segmentation structure along x
29 enum EPadyData{kPadPcY=48,kMinPy=0,kMaxPy=47,kMaxPcy=143}; //Segmentation structure along y
31 static Float_t SizePadX ( ) {return fgCellX; } //pad size x, [cm]
32 static Float_t SizePadY ( ) {return fgCellY; } //pad size y, [cm]
34 static Float_t SizePcX ( ) {return fgPcX; } // PC size x
35 static Float_t SizePcY ( ) {return fgPcY; } // PC size y
36 static Float_t MaxPcX (Int_t iPc ) {return fgkMaxPcX[iPc]; } // PC limits
37 static Float_t MaxPcY (Int_t iPc ) {return fgkMaxPcY[iPc]; } // PC limits
38 static Float_t MinPcX (Int_t iPc ) {return fgkMinPcX[iPc]; } // PC limits
39 static Float_t MinPcY (Int_t iPc ) {return fgkMinPcY[iPc]; } // PC limits
40 static Int_t Nsig ( ) {return fgSigmas; } //Getter n. sigmas for noise
41 static Float_t SizeAllX ( ) {return fgAllX; } //all PCs size x, [cm]
42 static Float_t SizeAllY ( ) {return fgAllY; } //all PCs size y, [cm]
44 static Float_t LorsX (Int_t pc,Int_t padx ) {return (padx +0.5)*SizePadX()+fgkMinPcX[pc]; } //center of the pad x, [cm]
46 static Float_t LorsY (Int_t pc,Int_t pady ) {return (pady +0.5)*SizePadY()+fgkMinPcY[pc]; } //center of the pad y, [cm]
48 inline static void Lors2Pad(Float_t x,Float_t y,Int_t &pc,Int_t &px,Int_t &py); //(x,y)->(pc,px,py)
50 static Int_t Abs (Int_t ch,Int_t pc,Int_t x,Int_t y) {return ch*100000000+pc*1000000+x*1000+y; } //(ch,pc,padx,pady)-> abs pad
51 static Int_t A2C (Int_t pad ) {return pad/100000000; } //abs pad -> chamber
52 static Int_t A2P (Int_t pad ) {return pad%100000000/1000000; } //abs pad -> pc
53 static Int_t A2X (Int_t pad ) {return pad%1000000/1000; } //abs pad -> pad X
54 static Int_t A2Y (Int_t pad ) {return pad%1000; } //abs pad -> pad Y
56 static Bool_t IsOverTh (Float_t q ) {return q >= fgSigmas; } //is digit over threshold?
58 Double_t GetRefIdx ( ) {return fRadNmean; } //refractive index of freon
59 Bool_t GetInstType ( ) {return fgInstanceType; } //return if the instance is from geom or ideal
61 inline static Bool_t IsInDead(Float_t x,Float_t y ); //is the point in dead area?
62 static Bool_t IsInside (Float_t x,Float_t y,Float_t d=0) {return x>-d&&y>-d&&x<fgkMaxPcX[kMaxPc]+d&&y<fgkMaxPcY[kMaxPc]+d; } //is point inside chamber boundaries?
64 Double_t MeanIdxRad ()const {return 1.29204;} //<--TEMPORAR--> to be removed in future. Mean ref index C6F14
65 Double_t MeanIdxWin ()const {return 1.57819;} //<--TEMPORAR--> to be removed in future. Mean ref index quartz
66 Float_t DistCut ()const {return 1.0;} //<--TEMPORAR--> to be removed in future. Cut for MIP-TRACK residual
67 Float_t QCut ()const {return 100;} //<--TEMPORAR--> to be removed in future. Separation PHOTON-MIP charge
68 Float_t MultCut ()const {return 200;} //<--TEMPORAR--> to be removed in future. Multiplicity cut to activate WEIGHT procedure
70 Double_t RadThick ()const {return 1.5;} //<--TEMPORAR--> to be removed in future. Radiator thickness
71 Double_t WinThick ()const {return 0.5;} //<--TEMPORAR--> to be removed in future. Window thickness
72 Double_t GapThick ()const {return 8.0;} //<--TEMPORAR--> to be removed in future. Proximity gap thickness
73 Double_t WinIdx ()const {return 1.5787;} //<--TEMPORAR--> to be removed in future. Mean refractive index of WIN material (SiO2)
74 Double_t GapIdx ()const {return 1.0005;} //<--TEMPORAR--> to be removed in future. Mean refractive index of GAP material (CH4)
76 static Int_t Stack(Int_t evt=-1,Int_t tid=-1); //Print stack info for event and tid
77 static Int_t StackCount(Int_t pid,Int_t evt); //Counts stack particles of given sort in given event
78 static void IdealPosition(Int_t iCh,TGeoHMatrix *m); //ideal position of given chamber
79 //trasformation methodes
80 void Lors2Mars (Int_t c,Float_t x,Float_t y,Double_t *m,Int_t pl=kPc)const{Double_t z=0; switch(pl){case kPc:z=8.0;break; case kAnod:z=7.806;break; case kRad:z=-1.25; break;} Double_t l[3]={x-fX,y-fY,z}; fM[c]->LocalToMaster(l,m); }
81 TVector3 Lors2Mars (Int_t c,Float_t x,Float_t y, Int_t pl=kPc)const{Double_t m[3];Lors2Mars(c,x,y,m,pl); return TVector3(m); }//MRS->LRS
82 void Mars2Lors (Int_t c,Double_t *m,Float_t &x ,Float_t &y )const{Double_t l[3];fM[c]->MasterToLocal(m,l);x=l[0]+fX;y=l[1]+fY;}//MRS->LRS
83 void Mars2LorsVec(Int_t c,Double_t *m,Float_t &th,Float_t &ph )const{Double_t l[3]; fM[c]->MasterToLocalVect(m,l);
84 Float_t pt=TMath::Sqrt(l[0]*l[0]+l[1]*l[1]);
85 th=TMath::ATan(pt/l[2]);
86 ph=TMath::ATan2(l[1],l[0]);}
87 TVector3 Norm (Int_t c )const{Double_t n[3]; Norm(c,n); return TVector3(n); }//norm
88 void Norm (Int_t c,Double_t *n )const{Double_t l[3]={0,0,1};fM[c]->LocalToMasterVect(l,n); }//norm
89 void Point (Int_t c,Double_t *p,Int_t plane )const{Lors2Mars(c,0,0,p,plane);} //point of given chamber plane
91 void SetRefIdx (Double_t refRadIdx ) {fRadNmean = refRadIdx;} //set refractive index of freon
94 Double_t SigLoc (Double_t trkTheta,Double_t trkPhi,Double_t ckovTh,Double_t ckovPh,Double_t beta);//error due to cathode segmetation
95 Double_t SigGeom (Double_t trkTheta,Double_t trkPhi,Double_t ckovTh,Double_t ckovPh,Double_t beta);//error due to unknown photon origin
96 Double_t SigCrom (Double_t trkTheta,Double_t trkPhi,Double_t ckovTh,Double_t ckovPh,Double_t beta);//error due to unknonw photon energy
97 Double_t Sigma2 (Double_t trkTheta,Double_t trkPhi,Double_t ckovTh,Double_t ckovPh );//photon candidate sigma^2
99 enum EPlaneId {kPc,kRad,kAnod}; //3 planes in chamber
100 enum ETrackingFlags {kMipDistCut=-9,kMipQdcCut=-5,kNoPhotAccept=-11}; //flags for Reconstruction
102 static Int_t fgSigmas; //sigma Cut
103 static Bool_t fgInstanceType; //kTRUE if from geomatry kFALSE if from ideal geometry
106 static /*const*/ Float_t fgkMinPcX[6]; //limits PC
107 static /*const*/ Float_t fgkMinPcY[6]; //limits PC
108 static /*const*/ Float_t fgkMaxPcX[6]; //limits PC
109 static /*const*/ Float_t fgkMaxPcY[6];
111 static Float_t fgCellX, fgCellY, fgPcX, fgPcY, fgAllX, fgAllY;
112 AliHMPIDParam(Bool_t noGeo); //default ctor is protected to enforce it to be singleton
114 static AliHMPIDParam *fgInstance; //static pointer to instance of AliHMPIDParam singleton
116 TGeoHMatrix *fM[7]; //pointers to matrices defining HMPID chambers rotations-translations
117 Float_t fX; //x shift of LORS with respect to rotated MARS
118 Float_t fY; //y shift of LORS with respect to rotated MARS
119 Double_t fRadNmean; //C6F14 mean index as a running parameter
122 AliHMPIDParam(const AliHMPIDParam& r); //dummy copy constructor
123 AliHMPIDParam &operator=(const AliHMPIDParam& r); //dummy assignment operator
125 ClassDef(AliHMPIDParam,0) //HMPID main parameters class
128 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
129 AliHMPIDParam* AliHMPIDParam::Instance()
131 // Return pointer to the AliHMPIDParam singleton.
133 // Returns: pointer to the instance of AliHMPIDParam or 0 if no geometry
134 if(!fgInstance) new AliHMPIDParam(kFALSE); //default setting for reconstruction, if no geometry.root -> AliFatal
137 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
138 AliHMPIDParam* AliHMPIDParam::InstanceNoGeo()
140 // Return pointer to the AliHMPIDParam singleton without the geometry.root.
142 // Returns: pointer to the instance of AliHMPIDParam or 0 if no geometry
143 if(!fgInstance) new AliHMPIDParam(kTRUE); //to avoid AliFatal, for MOOD and displays, use ideal geometry parameters
146 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
147 Bool_t AliHMPIDParam::IsInDead(Float_t x,Float_t y)
149 // Check is the current point is outside of sensitive area or in dead zones
150 // Arguments: x,y -position
151 // Returns: 1 if not in sensitive zone
152 for(Int_t iPc=0;iPc<6;iPc++)
153 if(x>=fgkMinPcX[iPc] && x<=fgkMaxPcX[iPc] && y>=fgkMinPcY[iPc] && y<=fgkMaxPcY [iPc]) return kFALSE; //in current pc
157 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
158 void AliHMPIDParam::Lors2Pad(Float_t x,Float_t y,Int_t &pc,Int_t &px,Int_t &py)
160 // Check the pad of given position
161 // Arguments: x,y- position [cm] in LORS; pc,px,py- pad where to store the result
164 if (x>fgkMinPcX[0] && x<fgkMaxPcX[0]) {pc=0; px=Int_t( x / SizePadX());}//PC 0 or 2 or 4
165 else if(x>fgkMinPcX[1] && x<fgkMaxPcX[1]) {pc=1; px=Int_t((x-fgkMinPcX[1]) / SizePadX());}//PC 1 or 3 or 5
167 if (y>fgkMinPcY[0] && y<fgkMaxPcY[0]) { py=Int_t( y / SizePadY());}//PC 0 or 1
168 else if(y>fgkMinPcY[2] && y<fgkMaxPcY[2]) {pc+=2;py=Int_t((y-fgkMinPcY[2]) / SizePadY());}//PC 2 or 3
169 else if(y>fgkMinPcY[4] && y<fgkMaxPcY[4]) {pc+=4;py=Int_t((y-fgkMinPcY[4]) / SizePadY());}//PC 4 or 5