AliRICHChamber(const AliRICHChamber &chamber):TNamed(chamber) {;}
virtual ~AliRICHChamber() {;}
AliRICHChamber& operator=(const AliRICHChamber&) {return *this;}
-
+
+ static Double_t AlphaFeedback(Int_t ) {return 0.02;} //determines number of feedback photons updated to 9/11/04 by Di Mauro
+
TRotMatrix* RotMatrix() const{return fpRotMatrix;}
- TString RotMatrixName() const{return "rot"+fName;}
+ TString RotMatrixName() const{return "rot"+fName;}
TRotation Rot() const{return fRot;}
- Double_t Rho() const{return fCenterV3.Mag();} //gives distance to chamber center in MRS
- Double_t ThetaD() const{return fCenterV3.Theta()*TMath::RadToDeg();} //gives polar angle of chamber center in MRS
- Double_t PhiD() const{return fCenterV3.Phi() *TMath::RadToDeg();} //gives azimuthal angle of chamber center in MRS
- Double_t ThetaXd() const{return fRot.ThetaX() *TMath::RadToDeg();}
- Double_t PhiXd() const{return fRot.PhiX() *TMath::RadToDeg();}
- Double_t ThetaYd() const{return fRot.ThetaY() *TMath::RadToDeg();}
- Double_t PhiYd() const{return fRot.PhiY() *TMath::RadToDeg();}
- Double_t ThetaZd() const{return fRot.ThetaZ() *TMath::RadToDeg();}
- Double_t PhiZd() const{return fRot.PhiZ() *TMath::RadToDeg();}
- void RotateX(Double_t a) {fRot.RotateX(a);fCenterV3.RotateX(a);fPcX3.RotateX(a);} //rotate chamber around X by "a" degrees
- void RotateY(Double_t a) {fRot.RotateY(a);fCenterV3.RotateY(a);fPcX3.RotateY(a);} //rotate chamber around Y by "a" degrees
- void RotateZ(Double_t a) {fRot.RotateZ(a);fCenterV3.RotateZ(a);fPcX3.RotateZ(a);} //rotate chamber around Z by "a" degrees
- Double_t X() const{return fCenterV3.X();}
- Double_t Y() const{return fCenterV3.Y();}
- Double_t Z() const{return fCenterV3.Z();}
- TVector2 Glob2Loc(TVector3 x3)const{x3-=fPcX3;x3.Transform(fRot.Inverse());return TVector2(x3.Z()+0.5*AliRICHParam::PcSizeX(),-x3.X()+0.5*AliRICHParam::PcSizeY());}//Y and Z are misplaced?????
- TVector3 Loc2Glob(TVector2 x2)const{TVector3 x3(-x2.Y()+0.5*AliRICHParam::PcSizeY(),0,x2.X()-0.5*AliRICHParam::PcSizeX());x3.Transform(fRot); x3+=fPcX3;return x3;}
-
- TVector2 Glob2Loc(TLorentzVector x4) const{return Glob2Loc(x4.Vect());}
-
- void Print(Option_t *sOption)const;//virtual
-
-
- inline void SetToZenith();
- TRotMatrix *GetRotMatrix() const{return fpRotMatrix;}
+ Double_t Rho() const{return fCenter.Mag();} //gives distance to chamber center in MRS
+ Double_t ThetaD() const{return fCenter.Theta()*TMath::RadToDeg();} //gives polar angle of chamber center in MRS
+ Double_t PhiD() const{return fCenter.Phi() *TMath::RadToDeg();} //gives azimuthal angle of chamber center in MRS
+ Double_t ThetaXd() const{return fRot.ThetaX() *TMath::RadToDeg();}
+ Double_t PhiXd() const{return fRot.PhiX() *TMath::RadToDeg();}
+ Double_t ThetaYd() const{return fRot.ThetaY() *TMath::RadToDeg();}
+ Double_t PhiYd() const{return fRot.PhiY() *TMath::RadToDeg();}
+ Double_t ThetaZd() const{return fRot.ThetaZ() *TMath::RadToDeg();}
+ Double_t PhiZd() const{return fRot.PhiZ() *TMath::RadToDeg();}
+ void RotX(Double_t a) {a*=TMath::DegToRad();fRot.RotateX(a);fRad.RotateX(a);fCenter.RotateX(a);fAnod.RotateX(a);fPc.RotateX(a);}//degrees around X
+ void RotY(Double_t a) {a*=TMath::DegToRad();fRot.RotateY(a);fRad.RotateY(a);fCenter.RotateY(a);fAnod.RotateY(a);fPc.RotateY(a);}//degrees around Y
+ void RotZ(Double_t a) {a*=TMath::DegToRad();fRot.RotateZ(a);fRad.RotateZ(a);fCenter.RotateZ(a);fAnod.RotateZ(a);fPc.RotateZ(a);}//degrees around Z
+ TVector3 Rad() const{return fRad;} //provides center of radiator position in MRS, cm
+ TVector3 Anod() const{return fAnod;} //provides center of anod wires plane in MRS, cm
+ TVector3 Pc() const{return fPc;} //provides center of photocathode position in MRS, cm
+ TVector3 Center() const{return fCenter;} //provides center of chamber position (exit from quartz window) in MRS, cm
+ void Print(Option_t *sOption)const;
+ TVector3 PMrs2Loc(TVector3 p3)const{TVector3 ploc=Rot().Invert()*p3;ploc.SetXYZ(-ploc.Px(),ploc.Py(),ploc.Pz()); return ploc;} //momentum MARS-local
+//Transformations for radiator plane
+ TVector2 Mrs2Rad(TVector3 x3)const{x3-=fRad;x3.Transform(fRot.Inverse());return TVector2(-x3.X()+0.5*AliRICHParam::PcSizeX(),x3.Y()+0.5*AliRICHParam::PcSizeY());}
+ TVector3 Rad2Mrs(TVector2 x2)const{TVector3 x3(-x2.X()+0.5*AliRICHParam::PcSizeX(),x2.Y()-0.5*AliRICHParam::PcSizeY(),0);x3.Transform(fRot); x3+=fRad;return x3;}
+//Transformations for anod wires plane
+ TVector2 Mrs2Anod(TVector3 x3)const{x3-=fAnod;x3.Transform(fRot.Inverse());return TVector2(-x3.X()+0.5*AliRICHParam::PcSizeX(),x3.Y()+0.5*AliRICHParam::PcSizeY());}
+ TVector3 Anod2Mrs(TVector2 x2)const{TVector3 x3(-x2.X()+0.5*AliRICHParam::PcSizeX(),x2.Y()-0.5*AliRICHParam::PcSizeY(),0);x3.Transform(fRot); x3+=fAnod;return x3;}
+//Transformations for photcathode plane
+ TVector2 Mrs2Pc(TVector3 x3)const{x3-=fPc;x3.Transform(fRot.Inverse());return TVector2(-x3.X()+0.5*AliRICHParam::PcSizeX(),x3.Y()+0.5*AliRICHParam::PcSizeY());}
+ TVector3 Pc2Mrs(TVector2 x2)const{TVector3 x3(-x2.X()+0.5*AliRICHParam::PcSizeX(),x2.Y()-0.5*AliRICHParam::PcSizeY(),0);x3.Transform(fRot); x3+=fPc;return x3;}
+ TVector2 Mrs2Pc(TLorentzVector x4) const{return Mrs2Pc(x4.Vect());}
protected:
- TVector3 fCenterV3; //chamber center position in MRS (cm)
- TVector3 fPcX3; //PC center position in MRS (cm)
+ TVector3 fRad; //radiator entrance center position in MRS (cm)
+ TVector3 fCenter; //chamber center position (quartz window exit) in MRS (cm)
+ TVector3 fAnod; //anod wires plane center position in MRS (cm)
+ TVector3 fPc; //PC center position in MRS (cm)
TRotation fRot; //chamber rotation in MRS
TRotMatrix *fpRotMatrix; //rotation matrix of the chamber with respect to MRS
- ClassDef(AliRICHChamber,6) //single RICH chamber description
+ ClassDef(AliRICHChamber,8) //single RICH chamber description
};//class AliRICHChamber
-//__________________________________________________________________________________________________
-void AliRICHChamber::SetToZenith()
-{
-//Put the chamber to zenith. Position of PC is shifted in X-Z plane since the origin of chamber local system is in
-//left hand down coner.
- fCenterV3.SetXYZ(0,AliRICHParam::Offset()-AliRICHParam::GapThickness()/2 ,0);
- fPcX3.SetXYZ(0,AliRICHParam::Offset()-AliRICHParam::GapThickness()/2+5.276+0.25,0);
-}
-//__________________________________________________________________________________________________
+
#endif //AliRICHChamber_h
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff