#ifndef AliRICHParam_h #define AliRICHParam_h #include #include "AliRICHConst.h" class AliRICHParam :public TObject { public: AliRICHParam(); virtual ~AliRICHParam() {;} inline Int_t Neighbours(Int_t iPadX,Int_t iPadY,Int_t aListX[4],Int_t aListY[4])const; //pad->neibours inline void SigGenInit(Float_t x,Float_t y); inline Bool_t SigGenCond(Float_t x,Float_t y); static Int_t Local2Pad(Float_t x,Float_t y,Int_t &padx,Int_t &pady); //(x,y)->(padx,pady), returns sector code static Int_t Local2PadX(Float_t x,Float_t y) {Int_t padx,pady;Local2Pad(x,y,padx,pady);return padx;}//(x,y)->padx static Int_t Local2PadY(Float_t x,Float_t y) {Int_t padx,pady;Local2Pad(x,y,padx,pady);return pady;}//(x,y)->pady static void Pad2Local(Int_t padx,Int_t pady,Float_t &x,Float_t &y); //(padx,pady)->(x,y) static Int_t LocalX2Wire(Float_t x) {return Int_t((x+PcSizeX()/2)/WirePitch())+1;} //x->wire number static Float_t Wire2LocalX(Int_t iWireN) {return iWireN*WirePitch()-PcSizeX()/2;} //wire number->x Float_t Gain(Float_t y); //Returns total charge induced by single photon Float_t TotalCharge(Int_t iPID,Float_t eloss,Float_t y); //Returns total charge induced by particle lost eloss GeV static Float_t AssignChargeToPad(Float_t hx,Float_t hy, Int_t px, Int_t py); //Returns charge assigned to given pad for a given hit void FirstPad(Float_t x,Float_t y); static Float_t AnodeCathodeGap() {return 0.2;} static Int_t NpadsX() {return 144;} static Int_t NpadsY() {return 160;} static Int_t NpadsXsec() {return NpadsX()/3;} static Int_t NpadsYsec() {return NpadsY()/2;} static Float_t DeadZone() {return 2.6;} static Float_t PadSizeX() {return 0.84;} static Float_t PadSizeY() {return 0.8;} static Float_t SectorSizeX() {return NpadsX()*PadSizeX()/3;} static Float_t SectorSizeY() {return NpadsY()*PadSizeY()/2;} static Float_t PcSizeX() {return NpadsX()*PadSizeX()+2*DeadZone();} static Float_t PcSizeY() {return NpadsY()*PadSizeY()+DeadZone();} static Float_t WirePitch() {return PadSizeX()/2;} void Size(Float_t x,Float_t y,Float_t z){fSizeX=x;fSizeY=y;fSizeZ=z;} void GeantSize(Float_t *pArr) const{pArr[0]=fSizeX/2;pArr[1]=fSizeY/2;pArr[2]=fSizeZ/2;} Float_t SizeX() const{return fSizeX;} Float_t SizeY() const{return fSizeY;} Float_t SizeZ() const{return fSizeZ;} void Offset(Float_t offset) { fOffset=offset;} Float_t Offset() const{return fOffset;} void Angles(Float_t xy,Float_t yz) { fAngleXY=xy;fAngleYZ=yz;} Float_t AngleYZ() const{return fAngleYZ*kD2r;} Float_t AngleXY() const{return fAngleXY*kD2r;} void AngleRot(Float_t angle) { fAngleRot=angle;} Float_t AngleRot() const{return fAngleRot*kD2r;} static Float_t GapThickness() {return 8.0;} void ProximityGapThickness(Float_t a) { fProximityGapThickness=a;} Float_t ProximityGapThickness() const{return fProximityGapThickness;} void QuartzLength(Float_t a) { fQuartzLength=a;} Float_t QuartzLength() const{return fQuartzLength;} void QuartzWidth(Float_t a) { fQuartzWidth=a;} Float_t QuartzWidth() const{return fQuartzWidth;} static Float_t QuartzThickness() {return 0.5;} void OuterFreonLength(Float_t a) { fOuterFreonLength=a;} Float_t OuterFreonLength() const{return fOuterFreonLength;} void OuterFreonWidth(Float_t a) { fOuterFreonWidth=a;} Float_t OuterFreonWidth() const{return fOuterFreonWidth;} void InnerFreonLength(Float_t a) { fInnerFreonLength=a;} Float_t InnerFreonLength() const{return fInnerFreonLength;} void InnerFreonWidth(Float_t a) { fInnerFreonWidth=a;} Float_t InnerFreonWidth() const{return fInnerFreonWidth;} static Float_t FreonThickness() {return 1.5;} static Float_t RadiatorToPads() {return FreonThickness()+QuartzThickness()+GapThickness();} void SigmaIntegration(Float_t a) { fSigmaIntegration=a;} Float_t SigmaIntegration() const{return fSigmaIntegration;} void ChargeSpreadX(Float_t a) { fChargeSpreadX=a;} Float_t ChargeSpreadX() const{return fChargeSpreadX;} void ChargeSpreadY(Float_t a) { fChargeSpreadY=a;} Float_t ChargeSpreadY() const{return fChargeSpreadY;} Float_t AreaX() const{return fSigmaIntegration*fChargeSpreadX;} Float_t AreaY() const{return fSigmaIntegration*fChargeSpreadY;} void ChargeSlope(Float_t a) { fChargeSlope=a;} Float_t ChargeSlope() {return fChargeSlope;} void MaxAdc(Int_t a) { fMaxAdc=a;} Int_t MaxAdc() const{return fMaxAdc;} void AlphaFeedback(Float_t a) { fAlphaFeedback=a;} Float_t AlphaFeedback() const{return fAlphaFeedback;} void EIonisation(Float_t a) { fEIonisation=a;} Float_t EIonisation() const{return fEIonisation;} static Float_t SqrtKx3() {return 0.77459667;} static Float_t Kx2() {return 0.962;} static Float_t Kx4() {return 0.379;} static Float_t SqrtKy3() {return 0.77459667;} static Float_t Ky2() {return 0.962;} static Float_t Ky4() {return 0.379;} void WireSag(Int_t a) { fWireSag=a;} void Voltage(Int_t a) { fVoltage=a;} Float_t Voltage() const{return fVoltage;} protected: static Int_t Local2Sector(Float_t &x,Float_t &y); //(x,y)->sector static Int_t Pad2Sector(Int_t &padx,Int_t &pady); //(padx,pady)->sector Int_t fCurrentPadX,fCurrentPadY; //??? Int_t fCurrentWire; //??? Float_t fSizeX; Float_t fSizeY; Float_t fSizeZ; //chamber outer size, cm Float_t fAngleRot; //azimuthal rotation XY plane, deg Float_t fAngleYZ; //angle between chambers YZ plane, deg Float_t fAngleXY; //angle between chambers XY plane, deg Float_t fOffset; //chambers offset from IP, cm Float_t fProximityGapThickness; //proximity gap thickness, cm Float_t fQuartzLength; Float_t fQuartzWidth; //quartz window size, cm Float_t fOuterFreonLength; Float_t fOuterFreonWidth; //freon box outer size, cm Float_t fInnerFreonLength; Float_t fInnerFreonWidth; //freon box inner size, cm Float_t fChargeSlope; //Slope of the charge distribution Float_t fChargeSpreadX; //Width of the charge distribution in x Float_t fChargeSpreadY; //Width of the charge distribution in y Float_t fSigmaIntegration; //Number of sigma's used for charge distribution Float_t fAlphaFeedback; //Feedback photons coefficient Float_t fEIonisation; //Mean ionisation energy Int_t fMaxAdc; //Maximum ADC channel Int_t fWireSag; //Flag to turn on/off (0/1) wire sag Int_t fVoltage; //Working voltage (2000, 2050, 2100, 2150) ClassDef(AliRICHParam,2) //RICH main parameters }; //__________________________________________________________________________________________________ void AliRICHParam::SigGenInit(Float_t x,Float_t y) {//Initialises pad and wire position during stepping Local2Pad(x,y,fCurrentPadX,fCurrentPadY); fCurrentWire= (x>0) ? Int_t(x/WirePitch())+1 : Int_t(x/WirePitch())-1 ; } //__________________________________________________________________________________________________ Bool_t AliRICHParam::SigGenCond(Float_t x,Float_t y) {//Signal will be generated if particle crosses pad boundary or boundary between two wires. Int_t curPadX,curPadY; Local2Pad(x,y,curPadX,curPadY); Int_t currentWire=(x>0) ? Int_t(x/WirePitch())+1 : Int_t(x/WirePitch())-1; if((curPadX != fCurrentPadX) || (curPadY != fCurrentPadY) || (currentWire!=fCurrentWire)) return kTRUE; else return kFALSE; }//Bool_t AliRICHParam::SigGenCond(Float_t x,Float_t y) //__________________________________________________________________________________________________ Int_t AliRICHParam::Neighbours(Int_t iPadX,Int_t iPadY,Int_t listX[4],Int_t listY[4])const { listX[0]=iPadX; listY[0]=iPadY-1; listX[1]=iPadX+1; listY[1]=iPadY; listX[2]=iPadX; listY[2]=iPadY+1; listX[3]=iPadX-1; listY[3]=iPadY; return 4; } //__________________________________________________________________________________________________ #endif //AliRICHParam_h