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2f614988 1#ifndef AliRICH_h
2#define AliRICH_h
2e5f0f7b 3
3da30618 4/* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
5 * See cxx source for full Copyright notice */
c11ee6f0 7#include <TObjArray.h>
853634d3 8#include <TClonesArray.h>
d4c94996 9#include <TVector3.h>
10#include <Riostream.h>
c11ee6f0 11#include <AliDetector.h>
853634d3 12#include <AliHit.h>
13#include <AliDigit.h>
3582c1f9 14#include "AliRICHDigitizer.h"
cb8189e7 15#include "AliRICHParam.h"
c021cb15 17//__________________AliRICHhit______________________________________________________________________
853634d3 18class AliRICHhit : public AliHit
e42a7b46 21 AliRICHhit():AliHit(),fChamber(kBad),fEloss(kBad) {fInX3.SetXYZ(0,0,0);fOutX3.SetXYZ(0,0,0);}
d4c94996 22 AliRICHhit(Int_t c,Int_t tid,TVector3 in,TVector3 out,Double_t e):AliHit(0,tid)
23 {fChamber=c;fInX3=in; fOutX3=out;fEloss=e; fX=out.X();fY=out.Y();fZ=out.Z();}
24 virtual ~AliRICHhit() {;}
af3d25a6 25
d4c94996 26 Int_t C() const{return fChamber;} //chamber number
27 Int_t Chamber() const{return fChamber;} //chamber number
28 Float_t Eloss() const{return fEloss;} //energy lost by track inside amplification gap
29 TVector3 InX3() const{return fInX3;} //track position at the faceplane of the gap
30 TVector3 OutX3() const{return fOutX3;} //track position at the backplane of the gap
31 Double_t Length() const{return (fOutX3-fInX3).Mag();} //track length inside the amplification gap
32 void Print(Option_t *option="")const; //virtual
853634d3 33protected:
c021cb15 34 Int_t fChamber; //chamber number
d4c94996 35 Double_t fEloss; //ionisation energy lost in GAP
3582c1f9 36 TVector3 fInX3; //position at the entrance of the GAP
d4c94996 37 TVector3 fOutX3; //position at the exit of the GAP
ed3ceb24 38 ClassDef(AliRICHhit,2) //RICH hit class
853634d3 39};//class AliRICHhit
c021cb15 40
c021cb15 41//__________________AliRICHdigit____________________________________________________________________
853634d3 42class AliRICHdigit :public AliDigit
e42a7b46 45 AliRICHdigit():AliDigit(),fCFM(0),fChamber(0),fPadX(0),fPadY(0),fQdc(kBad){fTracks[0]=fTracks[1]=fTracks[2]=kBad;}
46 AliRICHdigit(Int_t c,TVector pad,Double_t q,Int_t cfm,Int_t tid0,Int_t tid1,Int_t tid2)
47 {fPadX=(Int_t)pad[0];fPadY=(Int_t)pad[1];fQdc=q;fChamber=10*c+AliRICHParam::Pad2Sec(pad);fCFM=cfm;fTracks[0]=tid0;fTracks[1]=tid1;fTracks[2]=tid2;}
853634d3 48 virtual ~AliRICHdigit() {;}
d4c94996 49 Int_t Compare(const TObject *pObj) const
50 {if(Id()==((AliRICHdigit*)pObj)->Id())return 0;else if(Id()>((AliRICHdigit*)pObj)->Id())return 1;else return -1;} //virtual
e42a7b46 51 virtual Bool_t IsSortable() const{return kTRUE;} //sort interface
52 virtual void Print(Option_t *option="") const; //virtual
53 Int_t ChFbMi() const{return fCFM;} //particle mixture for this digit
d4c94996 54 Int_t C() const{return fChamber/10;} //chamber number
55 Int_t S() const{return fChamber-(fChamber/10)*10;} //sector number
56 Int_t X() const{return fPadX;} //x position of the pad
57 Int_t Y() const{return fPadY;} //y postion of the pad
e42a7b46 58 TVector Pad() const{Float_t v[2]={fPadX,fPadY}; return TVector(2,v);}
d4c94996 59 Int_t Id() const{return fChamber*10000000+fPadX*1000+fPadY;} //absolute id of this pad
60 Double_t Q() const{return fQdc;} //charge in terms of ADC channels
89924db8 61 void AddTidOffset(Int_t offset)
62 {for (Int_t i=0; i<3; i++) if (fTracks[i]>0) fTracks[i]+=offset;};
853634d3 63protected:
e42a7b46 64 Int_t fCFM; //1000000*Ncerenkovs+1000*Nfeedbacks+Nmips
ed3ceb24 65 Int_t fChamber; //10*chamber number+ sector number
c1863e3c 66 Int_t fPadX; //pad number along X
67 Int_t fPadY; //pad number along Y
ed3ceb24 68 Double_t fQdc; //QDC value, fractions are permitted for summable procedure
d4c94996 69 ClassDef(AliRICHdigit,3) //RICH digit class
853634d3 70};//class AliRICHdigit
cbaf35fb 71
ed3ceb24 72//__________________AliRICHcluster__________________________________________________________________
c1863e3c 73class AliRICHcluster :public TObject
e42a7b46 76 enum ClusterStatus {kEdge,kShape,kSize,kRaw,kResolved,kEmpty=kBad};
77 AliRICHcluster():TObject(),fCFM(0),fSize(0),fShape(0),fQdc(0),fChamber(0),fX(0),fY(0),fStatus(kEmpty),fDigits(0) {}
78 virtual ~AliRICHcluster() {Reset();}
79 void Reset() {DeleteDigits();fCFM=fSize=fShape=fQdc=fChamber=0;fX=fY=0;fStatus=kEmpty;} //cleans the cluster
80 void DeleteDigits() {if(fDigits) delete fDigits; fDigits=0;} //deletes the list of digits
81 AliRICHcluster& operator=(const AliRICHcluster&) {return *this;}
82 Int_t Nlocals() const{return fSize-10000*(fSize/10000);} //number of local maximums
83 Int_t Size() const{return fSize/10000;} //number of digits in cluster
84 Int_t Fsize() const{return fSize;} //
85 Int_t Shape() const{return fShape;} //cluster shape rectangulare
86 Int_t C() const{return fChamber/10;} //chamber number
87 Int_t S() const{return fChamber-(fChamber/10)*10;} //sector number
88 Int_t Fchamber() const{return fChamber;} //
89 Int_t Q() const{return fQdc;} //cluster charge in QDC channels
90 Double_t X() const{return fX;} //cluster x position in LRS
91 Double_t Y() const{return fY;} //cluster y position in LRS
92 Int_t Status() const{return fStatus;} //
93 void SetStatus(Int_t status) {fStatus=status;} //
94 Int_t Nmips() const{return fCFM-1000000*Ncerenkovs()-1000*Nfeedbacks();} //
95 Int_t Ncerenkovs() const{return fCFM/1000000;} //
96 Int_t Nfeedbacks() const{return (fCFM-1000000*Ncerenkovs())/1000;} //
97 Bool_t IsPureMip() const{return fCFM<1000;} //
98 Bool_t IsPureCerenkov() const{return Nmips()==0&&Nfeedbacks()==0;} //
99 Bool_t IsPureFeedback() const{return Nmips()==0&&Ncerenkovs()==0;} //
100 Bool_t IsSingleMip() const{return Nmips()==1&&Ncerenkovs()==0&&Nfeedbacks()==0;} //
101 Bool_t IsSingleCerenkov() const{return Nmips()==0&&Ncerenkovs()==1&&Nfeedbacks()==0;} //
102 Bool_t IsSingleFeedback() const{return Nmips()==0&&Ncerenkovs()==0&&Nfeedbacks()==1;} //
103 Bool_t IsMip() const{return Nmips()!=0;} //
104 Bool_t IsCerenkov() const{return Ncerenkovs()!=0;} //
105 Bool_t IsFeedback() const{return Nfeedbacks()!=0;} //
106 Int_t CombiPid() const{return fCFM;} //
107 void CFM(Int_t c,Int_t f,Int_t m) {fCFM=1000000*c+1000*f+m;} //cluster contributors
108 TObjArray* Digits() const{return fDigits;} //
109 virtual void Print(Option_t *option="")const; //
110 inline void AddDigit(AliRICHdigit *pDig); //
111 inline void CoG(Int_t nLocals); //calculates center of gravity
112 void Fill(AliRICHcluster *pRaw,Double_t x,Double_t y,Double_t q,Int_t cfm) //form new resolved cluster from raw one
113 {fCFM=cfm;fChamber=pRaw->Fchamber();fSize=pRaw->Fsize();fQdc=(Int_t)(q*pRaw->Q());fX=x;fY=y;fStatus=kResolved;} //
c1863e3c 114protected:
e42a7b46 115 Int_t fCFM; //1000000*Ncerenkovs+1000*Nfeedbacks+Nmips
6865fb8d 116 Int_t fSize; //10000*(how many digits belong to this cluster) + nLocalMaxima
e42a7b46 117 Int_t fShape; //100*xdim+ydim box containing the cluster
c1863e3c 118 Int_t fQdc; //QDC value
119 Int_t fChamber; //10*module number+sector number
120 Double_t fX; //local x postion
121 Double_t fY; //local y postion
122 Int_t fStatus; //flag to mark the quality of the cluster
123 TObjArray *fDigits; //! list of digits forming this cluster
ed3ceb24 124 ClassDef(AliRICHcluster,2) //RICH cluster class
c1863e3c 125};//class AliRICHcluster
127void AliRICHcluster::AddDigit(AliRICHdigit *pDig)
e42a7b46 128{
129// Adds a given digit to the list of digits belonging to this cluster
130 if(!fDigits) {fQdc=fSize=fCFM=0;fDigits = new TObjArray;}
cbaf35fb 131 fQdc+=(Int_t)pDig->Q(); fDigits->Add(pDig);
cb8189e7 132 fChamber=10*pDig->C()+pDig->S();
6865fb8d 133 fSize+=10000;
e42a7b46 134 fStatus=kRaw;
cbaf35fb 135}
6865fb8d 137void AliRICHcluster::CoG(Int_t nLocals)
e42a7b46 138{
139// Calculates naive cluster position as a center of gravity of its digits.
140 Float_t xmin=999,ymin=999,xmax=0,ymax=0;
cb8189e7 141 fX=fY=0;
142 for(Int_t iDig=0;iDig<Size();iDig++) {
143 AliRICHdigit *pDig=(AliRICHdigit*)fDigits->At(iDig);
e42a7b46 144 TVector pad=pDig->Pad(); Double_t q=pDig->Q();
145 TVector2 x2=AliRICHParam::Pad2Loc(pad);
3582c1f9 146 fX += x2.X()*q;fY +=x2.Y()*q;
e42a7b46 147 if(pad[0]<xmin)xmin=pad[0];if(pad[0]>xmax)xmax=pad[0];if(pad[1]<ymin)ymin=pad[1];if(pad[1]>ymax)ymax=pad[1];
cbaf35fb 148 }
cb8189e7 149 fX/=fQdc;fY/=fQdc;//Center of Gravity
e42a7b46 150 fShape=Int_t(100*(xmax-xmin+1)+ymax-ymin+1);//find box containing cluster
6865fb8d 151 fSize+=nLocals;
cb8189e7 152 fStatus=kRaw;
d4c94996 154
c021cb15 155//__________________AliRICH_________________________________________________________________________
e42a7b46 156class AliESD;
3ea9cb08 157
2f614988 158class AliRICH : public AliDetector
2f614988 160public:
853634d3 161 AliRICH();
af3d25a6 162 AliRICH(const char *name, const char *title);
d4c94996 163 AliRICH(const AliRICH& RICH):AliDetector(RICH) {;} //copy ctor
853634d3 164 virtual ~AliRICH();
dfb4e77d 165
942194a4 166 AliRICH& operator=(const AliRICH&) {return *this;}
d4c94996 167//framework part
e42a7b46 168 virtual Int_t IsVersion() const =0; //interface from
169 virtual void StepManager() =0; //interface from AliMC
170 virtual void Hits2SDigits(); //interface from AliSimulation
171 virtual AliDigitizer* CreateDigitizer(AliRunDigitizer* man) const {return new AliRICHDigitizer(man);} //interface from AliSimulation
172 virtual void Reconstruct() const; //interface from AliReconstruction
173 virtual void FillESD(AliESD *pESD) const; //interface from AliReconstruction
174 virtual void Print(Option_t *option) const; //prints current RICH status
175 virtual void SetTreeAddress(); //interface from AliLoader
176 virtual void MakeBranch(Option_t *opt=" "); //interface from AliLoader
177 virtual void CreateMaterials(); //interface from AliMC
178 virtual void CreateGeometry(); //interface from AliMC
179 virtual void BuildGeometry(); //interface
d4c94996 180//private part
181 Float_t AbsoCH4(Float_t x)const; //calculates absorption length for methane
182 Float_t Fresnel(Float_t ene,Float_t pdoti, Bool_t pola)const; //deals with Fresnel absorption
d4c94996 183 inline void CreateHits(); //create hits container as a simple list
184 inline void CreateSDigits(); //create sdigits container as a simple list
185 inline void CreateDigits(); //create digits container as 7 lists, one per chamber
186 inline void CreateClusters(); //create clusters container as 7 lists, one per chamber
d4c94996 187// void ResetHits() {AliDetector::ResetHits();} //virtual
188 void ResetSDigits() {fNsdigits=0; if(fSdigits) fSdigits ->Clear();}
e42a7b46 189 void ResetDigits() {if(fDigitsNew)for(int i=0;i<kNchambers;i++){fDigitsNew->At(i)->Clear();fNdigitsNew[i]=0;}} //virtual
190 void ResetClusters() {if(fClusters) for(int i=0;i<kNchambers;i++){fClusters ->At(i)->Clear();fNclusters[i]=0;}}
c1863e3c 191 TClonesArray* SDigits() const{return fSdigits;}
543d5224 192 TClonesArray* Digits(Int_t iC) const{if(fDigitsNew) return (TClonesArray *)fDigitsNew->At(iC-1);else return 0;}
c60862bf 193 TClonesArray* Clusters(Int_t iC) const{if(fClusters) return (TClonesArray *)fClusters->At(iC-1);else return 0;}
e42a7b46 194 AliRICHChamber* C(Int_t iC) const{return fpParam->C(iC);} //provides pointer to a given chamber
195 AliRICHParam* P() const{return fpParam;} //provides pointer to a RICH params
196 AliRICH* R() {return this;} //provides pointer to RICH main object
197 TVector Counters() const{return fCounters;} //provides a set of counters
198 void ControlPlots(); //utility
199 void PrintHits (Int_t iEvent=0); //utility
200 void PrintSDigits (Int_t iEvent=0); //utility
201 void PrintDigits (Int_t iEvent=0); //utility
202 void PrintClusters(Int_t iEvent=0); //utility
c60862bf 203
e42a7b46 204 void AddHit(Int_t c,Int_t tid,TVector3 i3,TVector3 o3,Double_t eloss=0){TClonesArray &tmp=*fHits;new(tmp[fNhits++])AliRICHhit(c,tid,i3,o3,eloss);}
205 inline void AddSDigit(Int_t c,TVector pad,Double_t q,Int_t pid,Int_t tid);
206 void AddDigit(int c,TVector pad,int q,int cfm,int *tid)//Add simulated digit
207 {TClonesArray &tmp=*((TClonesArray*)fDigitsNew->At(c-1));new(tmp[fNdigitsNew[c-1]++])AliRICHdigit(c,pad,q,cfm,tid[0],tid[1],tid[2]);}
208 void AddDigit(Int_t c,TVector pad,Int_t q)//for real data digits
209 {TClonesArray &tmp=*((TClonesArray*)fDigitsNew->At(0));new(tmp[fNdigitsNew[0]++])AliRICHdigit(c,pad,q,0,-1,-1,-1);}
d4c94996 210 void AddCluster(AliRICHcluster &cl)
e42a7b46 211 {Int_t c=cl.C()-1;TClonesArray &tmp=*((TClonesArray*)fClusters->At(c));new(tmp[fNclusters[c]++])AliRICHcluster(cl);}
212 AliRICHhit* Hit(Int_t tid); //returns pointer ot RICH hit for a given tid
c60862bf 213protected:
e42a7b46 214 enum {kAir=1,kCSI=6,kGAP=9,kAl=10,kCH4=5,kSteel=15,kPerpex=16,kSr90=17};
c021cb15 215 AliRICHParam *fpParam; //main RICH parametrization
d4c94996 216 //fHits and fDigits belong to AliDetector
e42a7b46 217 TClonesArray *fSdigits; //! list of sdigits
218 Int_t fNsdigits; //! current number of sdigits
84365c70 219
e42a7b46 220 TObjArray *fDigitsNew; //! each chamber holds it's one lists of digits
221 Int_t fNdigitsNew[kNchambers]; //! array of current numbers of digits
84365c70 222
e42a7b46 223 TObjArray *fClusters; //! each chamber holds it's one lists of clusters
224 Int_t fNclusters[kNchambers]; //! array of current numbers of raw clusters
84365c70 225
e42a7b46 226 TVector fCounters; //Photon history conters, explanation in StepManager()
227 ClassDef(AliRICH,7) //Main RICH class
c60862bf 228};//class AliRICH
ed3ceb24 229
c1863e3c 230//__________________________________________________________________________________________________
c60862bf 231void AliRICH::CreateHits()
233 if(fHits) return;
234 if(GetDebug())Info("CreateHits","creating hits container.");
235 fHits=new TClonesArray("AliRICHhit",10000); fNhits=0;
543d5224 236}
c60862bf 237//__________________________________________________________________________________________________
c1863e3c 238void AliRICH::CreateSDigits()
c60862bf 239{
240 if(fSdigits) return;
c1863e3c 241 if(GetDebug())Info("CreateSDigits","creating sdigits container.");
c60862bf 242 fSdigits=new TClonesArray("AliRICHdigit",10000); fNsdigits=0;
543d5224 243}
c60862bf 244//__________________________________________________________________________________________________
245void AliRICH::CreateDigits()
247 if(fDigitsNew) return;
248 if(GetDebug())Info("CreateDigits","creating digits containers.");
e42a7b46 249 fDigitsNew = new TObjArray(kNchambers);
250 for(Int_t i=0;i<kNchambers;i++) {fDigitsNew->AddAt(new TClonesArray("AliRICHdigit",10000), i); fNdigitsNew[i]=0;}
543d5224 251}
c60862bf 252//__________________________________________________________________________________________________
253void AliRICH::CreateClusters()
255 if(fClusters) return;
256 if(GetDebug())Info("CreateClusters","creating clusters containers.");
e42a7b46 257 fClusters = new TObjArray(kNchambers);
258 for(Int_t i=0;i<kNchambers;i++) {fClusters->AddAt(new TClonesArray("AliRICHcluster",10000), i); fNclusters[i]=0;}
543d5224 259}
ed3ceb24 260//__________________________________________________________________________________________________
e42a7b46 261void AliRICH::AddSDigit(Int_t c,TVector pad,Double_t q,Int_t pid,Int_t tid)
263 Int_t cfm;
ed3ceb24 264 switch(pid){
e42a7b46 265 case 50000050: cfm=1000000;break;//cerenkov
266 case 50000051: cfm=1000; break;//feedback
267 default: cfm=1; break;//mip
ed3ceb24 268 }
e42a7b46 269 TClonesArray &tmp=*fSdigits; new(tmp[fNsdigits++])AliRICHdigit(c,pad,q,cfm,tid,kBad,kBad);
d4c94996 271//__________________________________________________________________________________________________
c60862bf 272#endif//#ifndef AliRICH_h