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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 */ | |
5 | ||
6 | /* $Id$ */ | |
7 | ||
8 | #include <TMath.h> | |
9 | #include <TNamed.h> //base class | |
10 | #include <TGeoManager.h> //Instance() | |
11 | #include <TGeoMatrix.h> //Instance() | |
12 | #include <TVector3.h> //Lors2Mars() Mars2Lors() | |
13 | ||
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 | |
17 | ||
18 | class AliHMPIDParam :public TNamed | |
19 | { | |
20 | public: | |
21 | //ctor&dtor | |
22 | virtual ~AliHMPIDParam() {if (fgInstance){for(Int_t i=0;i<7;i++){delete fM[i];fM[i] = 0x0;};fgInstance=0;}} | |
23 | ||
24 | void Print(Option_t *opt="") const; //print current parametrization | |
25 | ||
26 | static inline AliHMPIDParam* Instance(); //pointer to AliHMPIDParam singleton | |
27 | static inline AliHMPIDParam* InstanceNoGeo(); //pointer to AliHMPIDParam singleton without geometry.root for MOOD, displays, ... | |
28 | //geo info | |
29 | enum EChamberData{kMinCh=0,kMaxCh=6,kMinPc=0,kMaxPc=5}; //Segmenation | |
30 | enum EPadxData{kPadPcX=80,kMinPx=0,kMaxPx=79,kMaxPcx=159}; //Segmentation structure along x | |
31 | enum EPadyData{kPadPcY=48,kMinPy=0,kMaxPy=47,kMaxPcy=143}; //Segmentation structure along y | |
32 | //The electronics takes the 32bit int as: first 9 bits for the pedestal and the second 9 bits for threshold - values below should be within range | |
33 | enum EPedestalData{kPadMeanZeroCharge=400,kPadSigmaZeroCharge=20,kPadMeanMasked=401,kPadSigmaMasked=20}; //One can go up to 5 sigma cut, overflow is protected in AliHMPIDCalib | |
34 | ||
35 | ||
36 | static Float_t r2d ( ) {return 57.2957795; } | |
37 | static Float_t SizePadX ( ) {return fgCellX; } //pad size x, [cm] | |
38 | static Float_t SizePadY ( ) {return fgCellY; } //pad size y, [cm] | |
39 | ||
40 | static Float_t SizePcX ( ) {return fgPcX; } // PC size x | |
41 | static Float_t SizePcY ( ) {return fgPcY; } // PC size y | |
42 | static Float_t MaxPcX (Int_t iPc ) {return fgkMaxPcX[iPc]; } // PC limits | |
43 | static Float_t MaxPcY (Int_t iPc ) {return fgkMaxPcY[iPc]; } // PC limits | |
44 | static Float_t MinPcX (Int_t iPc ) {return fgkMinPcX[iPc]; } // PC limits | |
45 | static Float_t MinPcY (Int_t iPc ) {return fgkMinPcY[iPc]; } // PC limits | |
46 | static Int_t Nsig ( ) {return fgSigmas; } //Getter n. sigmas for noise | |
47 | static Float_t SizeAllX ( ) {return fgAllX; } //all PCs size x, [cm] | |
48 | static Float_t SizeAllY ( ) {return fgAllY; } //all PCs size y, [cm] | |
49 | ||
50 | static Float_t LorsX (Int_t pc,Int_t padx ) {return (padx +0.5)*SizePadX()+fgkMinPcX[pc]; } //center of the pad x, [cm] | |
51 | static Float_t LorsY (Int_t pc,Int_t pady ) {return (pady +0.5)*SizePadY()+fgkMinPcY[pc]; } //center of the pad y, [cm] | |
52 | ||
53 | Float_t ChPhiMin (Int_t ch ) {return Lors2Mars(ch,LorsX(ch,kMinPx)-fX,LorsY(ch,kMinPy)-fY).Phi()*r2d();} //PhiMin (degree) of the camber ch | |
54 | Float_t ChThMin (Int_t ch ) {return Lors2Mars(ch,LorsX(ch,kMinPx)-fX,LorsY(ch,kMinPy)-fY).Theta()*r2d();} //ThMin (degree) of the camber ch | |
55 | Float_t ChPhiMax (Int_t ch ) {return Lors2Mars(ch,LorsX(ch,kMaxPcx)-fX,LorsY(ch,kMaxPcy)-fY).Phi()*r2d();} //PhiMax (degree) of the camber ch | |
56 | Float_t ChThMax (Int_t ch ) {return Lors2Mars(ch,LorsX(ch,kMaxPcx)-fX,LorsY(ch,kMaxPcy)-fY).Theta()*r2d();} //ThMax (degree) of the camber ch | |
57 | ||
58 | inline static void Lors2Pad(Float_t x,Float_t y,Int_t &pc,Int_t &px,Int_t &py); //(x,y)->(pc,px,py) | |
59 | ||
60 | 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 | |
61 | static Int_t DDL2C (Int_t ddl ) {return ddl/2; } //ddl -> chamber | |
62 | static Int_t A2C (Int_t pad ) {return pad/100000000; } //abs pad -> chamber | |
63 | static Int_t A2P (Int_t pad ) {return pad%100000000/1000000; } //abs pad -> pc | |
64 | static Int_t A2X (Int_t pad ) {return pad%1000000/1000; } //abs pad -> pad X | |
65 | static Int_t A2Y (Int_t pad ) {return pad%1000; } //abs pad -> pad Y | |
66 | ||
67 | static Bool_t IsOverTh (Float_t q ) {return q >= fgSigmas; } //is digit over threshold? | |
68 | ||
69 | Bool_t GetInstType ( )const{return fgInstanceType; } //return if the instance is from geom or ideal | |
70 | ||
71 | inline static Bool_t IsInDead(Float_t x,Float_t y ); //is the point in dead area? | |
72 | inline static Int_t InHVSector( Float_t y ); //find HV sector | |
73 | static Int_t Radiator( Float_t y ) {if (InHVSector(y)<0) return -1; return InHVSector(y)/2;} | |
74 | 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? | |
75 | ||
76 | //For optical properties | |
77 | static Double_t EPhotMin() {return 5.5;} // | |
78 | static Double_t EPhotMax() {return 8.5;} //Photon energy range,[eV] | |
79 | static Double_t NIdxRad(Double_t eV,Double_t temp) {return TMath::Sqrt(1+0.554*(1239.84/eV)*(1239.84/eV)/((1239.84/eV)*(1239.84/eV)-5769)-0.0005*(temp-20));} | |
80 | static Double_t NIdxWin(Double_t eV) {return TMath::Sqrt(1+46.411/(10.666*10.666-eV*eV)+228.71/(18.125*18.125-eV*eV));} | |
81 | static Double_t NMgF2Idx(Double_t eV) {return 1.7744 - 2.866e-3*(1239.842609/eV) + 5.5564e-6*(1239.842609/eV)*(1239.842609/eV);} // MgF2 idx of trasparency system | |
82 | static Double_t NIdxGap(Double_t eV) {return 1+0.12489e-6/(2.62e-4 - eV*eV/1239.84/1239.84);} | |
83 | static Double_t LAbsRad(Double_t eV) {return (eV<7.8)*(GausPar(eV,3.20491e16,-0.00917890,0.742402)+GausPar(eV,3035.37,4.81171,0.626309))+(eV>=7.8)*0.0001;} | |
84 | static Double_t LAbsWin(Double_t eV) {return (eV<8.2)*(818.8638-301.0436*eV+36.89642*eV*eV-1.507555*eV*eV*eV)+(eV>=8.2)*0.0001;}//fit from DiMauro data 28.10.03 | |
85 | static Double_t LAbsGap(Double_t eV) {return (eV<7.75)*6512.399+(eV>=7.75)*3.90743e-2/(-1.655279e-1+6.307392e-2*eV-8.011441e-3*eV*eV+3.392126e-4*eV*eV*eV);} | |
86 | static Double_t QEffCSI(Double_t eV) {return (eV>6.07267)*0.344811*(1-exp(-1.29730*(eV-6.07267)));}//fit from DiMauro data 28.10.03 | |
87 | static Double_t GausPar(Double_t x,Double_t a1,Double_t a2,Double_t a3) {return a1*TMath::Exp(-0.5*((x-a2)/a3)*((x-a2)/a3));} | |
88 | inline static Double_t FindTemp(Double_t tLow,Double_t tUp,Double_t y); //find the temperature of the C6F14 in a given point with coord. y (in x is uniform) | |
89 | ||
90 | ||
91 | Double_t GetEPhotMean ()const {return fPhotEMean;} | |
92 | Double_t GetRefIdx ()const {return fRefIdx;} //running refractive index | |
93 | ||
94 | Double_t MeanIdxRad ()const {return NIdxRad(fPhotEMean,fTemp);} | |
95 | Double_t MeanIdxWin ()const {return NIdxWin(fPhotEMean);} | |
96 | // | |
97 | Float_t DistCut ()const {return 1.0;} //<--TEMPORAR--> to be removed in future. Cut for MIP-TRACK residual | |
98 | Float_t QCut ()const {return 100;} //<--TEMPORAR--> to be removed in future. Separation PHOTON-MIP charge | |
99 | Float_t MultCut ()const {return 200;} //<--TEMPORAR--> to be removed in future. Multiplicity cut to activate WEIGHT procedure | |
100 | ||
101 | Double_t RadThick ()const {return 1.5;} //<--TEMPORAR--> to be removed in future. Radiator thickness | |
102 | Double_t WinThick ()const {return 0.5;} //<--TEMPORAR--> to be removed in future. Window thickness | |
103 | Double_t GapThick ()const {return 8.0;} //<--TEMPORAR--> to be removed in future. Proximity gap thickness | |
104 | Double_t WinIdx ()const {return 1.5787;} //<--TEMPORAR--> to be removed in future. Mean refractive index of WIN material (SiO2) | |
105 | Double_t GapIdx ()const {return 1.0005;} //<--TEMPORAR--> to be removed in future. Mean refractive index of GAP material (CH4) | |
106 | ||
107 | static Int_t Stack(Int_t evt=-1,Int_t tid=-1); //Print stack info for event and tid | |
108 | static Int_t StackCount(Int_t pid,Int_t evt); //Counts stack particles of given sort in given event | |
109 | static void IdealPosition(Int_t iCh,TGeoHMatrix *m); //ideal position of given chamber | |
110 | //trasformation methodes | |
111 | 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); } | |
112 | 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 | |
113 | 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 | |
114 | void Mars2LorsVec(Int_t c,Double_t *m,Float_t &th,Float_t &ph )const{Double_t l[3]; fM[c]->MasterToLocalVect(m,l); | |
115 | Float_t pt=TMath::Sqrt(l[0]*l[0]+l[1]*l[1]); | |
116 | th=TMath::ATan(pt/l[2]); | |
117 | ph=TMath::ATan2(l[1],l[0]);} | |
118 | void Lors2MarsVec(Int_t c,Double_t *m,Double_t *l )const{fM[c]->LocalToMasterVect(m,l); }//LRS->MRS | |
119 | TVector3 Norm (Int_t c )const{Double_t n[3]; Norm(c,n); return TVector3(n); }//norm | |
120 | void Norm (Int_t c,Double_t *n )const{Double_t l[3]={0,0,1};fM[c]->LocalToMasterVect(l,n); }//norm | |
121 | void Point (Int_t c,Double_t *p,Int_t plane )const{Lors2Mars(c,0,0,p,plane);} //point of given chamber plane | |
122 | ||
123 | void SetTemp (Double_t temp ) {fTemp = temp;} //set actual temperature of the C6F14 | |
124 | void SetEPhotMean (Double_t ePhotMean ) {fPhotEMean = ePhotMean;} //set mean photon energy | |
125 | ||
126 | void SetRefIdx (Double_t refRadIdx ) {fRefIdx = refRadIdx;} //set running refractive index | |
127 | ||
128 | void SetSigmas (Int_t sigmas ) {fgSigmas = sigmas;} //set sigma cut | |
129 | void SetInstanceType(Bool_t inst ) {fgInstanceType = inst;} //kTRUE if from geomatry kFALSE if from ideal geometry | |
130 | //For PID | |
131 | Double_t SigLoc (Double_t trkTheta,Double_t trkPhi,Double_t ckovTh,Double_t ckovPh,Double_t beta);//error due to cathode segmetation | |
132 | Double_t SigGeom (Double_t trkTheta,Double_t trkPhi,Double_t ckovTh,Double_t ckovPh,Double_t beta);//error due to unknown photon origin | |
133 | Double_t SigCrom (Double_t trkTheta,Double_t trkPhi,Double_t ckovTh,Double_t ckovPh,Double_t beta);//error due to unknonw photon energy | |
134 | Double_t Sigma2 (Double_t trkTheta,Double_t trkPhi,Double_t ckovTh,Double_t ckovPh );//photon candidate sigma^2 | |
135 | ||
136 | //Mathieson Getters | |
137 | ||
138 | static Double_t PitchAnodeCathode() {return fgkD;} | |
139 | static Double_t SqrtK3x() {return fgkSqrtK3x;} | |
140 | static Double_t K2x () {return fgkK2x;} | |
141 | static Double_t K1x () {return fgkK1x;} | |
142 | static Double_t K4x () {return fgkK4x;} | |
143 | static Double_t SqrtK3y() {return fgkSqrtK3y;} | |
144 | static Double_t K2y () {return fgkK2y;} | |
145 | static Double_t K1y () {return fgkK1y;} | |
146 | static Double_t K4y () {return fgkK4y;} | |
147 | // | |
148 | enum EPlaneId {kPc,kRad,kAnod}; //3 planes in chamber | |
149 | enum ETrackingFlags {kMipDistCut=-9,kMipQdcCut=-5,kNoPhotAccept=-11}; //flags for Reconstruction | |
150 | ||
151 | protected: | |
152 | static /*const*/ Float_t fgkMinPcX[6]; //limits PC | |
153 | static /*const*/ Float_t fgkMinPcY[6]; //limits PC | |
154 | static /*const*/ Float_t fgkMaxPcX[6]; //limits PC | |
155 | static /*const*/ Float_t fgkMaxPcY[6]; | |
156 | ||
157 | // Mathieson constants | |
158 | // For HMPID --> x direction means parallel to the wires: K3 = 0.66 (NIM A270 (1988) 602-603) fig.1 | |
159 | // For HMPID --> y direction means perpendicular to the wires: K3 = 0.90 (NIM A270 (1988) 602-603) fig.2 | |
160 | // | |
161 | ||
162 | static const Double_t fgkD; // ANODE-CATHODE distance 0.445/2 | |
163 | ||
164 | static const Double_t fgkSqrtK3x,fgkK2x,fgkK1x,fgkK4x; | |
165 | static const Double_t fgkSqrtK3y,fgkK2y,fgkK1y,fgkK4y; | |
166 | // | |
167 | ||
168 | static Int_t fgSigmas; //sigma Cut | |
169 | static Bool_t fgInstanceType; //kTRUE if from geomatry kFALSE if from ideal geometry | |
170 | ||
171 | static Float_t fgCellX, fgCellY, fgPcX, fgPcY, fgAllX, fgAllY; //definition of HMPID geometric parameters | |
172 | AliHMPIDParam(Bool_t noGeo); //default ctor is protected to enforce it to be singleton | |
173 | ||
174 | static AliHMPIDParam *fgInstance; //static pointer to instance of AliHMPIDParam singleton | |
175 | ||
176 | TGeoHMatrix *fM[7]; //pointers to matrices defining HMPID chambers rotations-translations | |
177 | Float_t fX; //x shift of LORS with respect to rotated MARS | |
178 | Float_t fY; //y shift of LORS with respect to rotated MARS | |
179 | Double_t fRefIdx; //running refractive index of C6F14 | |
180 | Double_t fPhotEMean; //mean energy of photon | |
181 | Double_t fTemp; //actual temparature of C6F14 | |
182 | private: | |
183 | AliHMPIDParam(const AliHMPIDParam& r); //dummy copy constructor | |
184 | AliHMPIDParam &operator=(const AliHMPIDParam& r); //dummy assignment operator | |
185 | ||
186 | ClassDef(AliHMPIDParam,1) //HMPID main parameters class | |
187 | }; | |
188 | ||
189 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
190 | AliHMPIDParam* AliHMPIDParam::Instance() | |
191 | { | |
192 | // Return pointer to the AliHMPIDParam singleton. | |
193 | // Arguments: none | |
194 | // Returns: pointer to the instance of AliHMPIDParam or 0 if no geometry | |
195 | if(!fgInstance) new AliHMPIDParam(kFALSE); //default setting for reconstruction, if no geometry.root -> AliFatal | |
196 | return fgInstance; | |
197 | }//Instance() | |
198 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
199 | AliHMPIDParam* AliHMPIDParam::InstanceNoGeo() | |
200 | { | |
201 | // Return pointer to the AliHMPIDParam singleton without the geometry.root. | |
202 | // Arguments: none | |
203 | // Returns: pointer to the instance of AliHMPIDParam or 0 if no geometry | |
204 | if(!fgInstance) new AliHMPIDParam(kTRUE); //to avoid AliFatal, for MOOD and displays, use ideal geometry parameters | |
205 | return fgInstance; | |
206 | }//Instance() | |
207 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
208 | Bool_t AliHMPIDParam::IsInDead(Float_t x,Float_t y) | |
209 | { | |
210 | // Check is the current point is outside of sensitive area or in dead zones | |
211 | // Arguments: x,y -position | |
212 | // Returns: 1 if not in sensitive zone | |
213 | for(Int_t iPc=0;iPc<6;iPc++) | |
214 | if(x>=fgkMinPcX[iPc] && x<=fgkMaxPcX[iPc] && y>=fgkMinPcY[iPc] && y<=fgkMaxPcY [iPc]) return kFALSE; //in current pc | |
215 | ||
216 | return kTRUE; | |
217 | } | |
218 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
219 | void AliHMPIDParam::Lors2Pad(Float_t x,Float_t y,Int_t &pc,Int_t &px,Int_t &py) | |
220 | { | |
221 | // Check the pad of given position | |
222 | // Arguments: x,y- position [cm] in LORS; pc,px,py- pad where to store the result | |
223 | // Returns: none | |
224 | pc=px=py=-1; | |
225 | if (x>fgkMinPcX[0] && x<fgkMaxPcX[0]) {pc=0; px=Int_t( x / SizePadX());}//PC 0 or 2 or 4 | |
226 | else if(x>fgkMinPcX[1] && x<fgkMaxPcX[1]) {pc=1; px=Int_t((x-fgkMinPcX[1]) / SizePadX());}//PC 1 or 3 or 5 | |
227 | else return; | |
228 | if (y>fgkMinPcY[0] && y<fgkMaxPcY[0]) { py=Int_t( y / SizePadY());}//PC 0 or 1 | |
229 | else if(y>fgkMinPcY[2] && y<fgkMaxPcY[2]) {pc+=2;py=Int_t((y-fgkMinPcY[2]) / SizePadY());}//PC 2 or 3 | |
230 | else if(y>fgkMinPcY[4] && y<fgkMaxPcY[4]) {pc+=4;py=Int_t((y-fgkMinPcY[4]) / SizePadY());}//PC 4 or 5 | |
231 | else return; | |
232 | } | |
233 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
234 | Int_t AliHMPIDParam::InHVSector(Float_t y) | |
235 | { | |
236 | //Calculate the HV sector corresponding to the cluster position | |
237 | //Arguments: y | |
238 | //Returns the HV sector in the single module | |
239 | ||
240 | Int_t hvsec = -1; | |
241 | Int_t pc,px,py; | |
242 | Lors2Pad(1.,y,pc,px,py); | |
243 | if(py==-1) return hvsec; | |
244 | ||
245 | hvsec = (py+(pc/2)*(kMaxPy+1))/((kMaxPy+1)/2); | |
246 | ||
247 | return hvsec; | |
248 | } | |
249 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
250 | Double_t AliHMPIDParam::FindTemp(Double_t tLow,Double_t tHigh,Double_t y) | |
251 | { | |
252 | // Model for gradient in temperature | |
253 | ||
254 | // Double_t gradT = (t2-t1)/SizePcY(); // linear gradient | |
255 | // return gradT*y+t1; | |
256 | Double_t halfPadSize = 0.5*SizePadY(); | |
257 | Double_t gradT = (TMath::Log(SizePcY()) - TMath::Log(halfPadSize))/(TMath::Log(tHigh)-TMath::Log(tLow)); | |
258 | if(y<0) y = 0; | |
259 | return tLow + TMath::Power(y/halfPadSize,1./gradT); | |
260 | } | |
261 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
262 | #endif |