RICH/AliRICHParam.h

   1 #ifndef AliRICHParam_h
   2 #define AliRICHParam_h
   3
   4 #include <TObject.h>
   5 #include "AliRICHConst.h"
   6
   7 class AliRICHParam :public TObject
   8 {
   9 public:
  10            AliRICHParam();
  11   virtual ~AliRICHParam()                    {;}
  12
  13   void    Recalc();                                           //Recalculates dependent parameters after changes applied
  14   Int_t   Sector(Float_t &x,Float_t &y)const;                       //Returns sector number for given point (x,y)
  15   Int_t   L2P(Float_t x,Float_t y,Int_t &padx,Int_t &pady)const;//Which pad contains point (x,y), returns sector code
  16   inline  Int_t L2Px(Float_t x,Float_t y)const;                         //Which pad contains point (x,y), returns padx
  17   inline  Int_t L2Py(Float_t x,Float_t y)const;                         //Which pad contains point (x,y), returns padx
  18   inline  Int_t Wire(Float_t x)const;                             //Returns wire number for local point (x,y)
  19   inline  void   SigGenInit(Float_t x,Float_t y);
  20   inline  Bool_t SigGenCond(Float_t x,Float_t y);
  21   Float_t Gain(Float_t y);                                 //Returns total charge induced by single photon
  22   Float_t TotalCharge(Int_t iPID,Float_t eloss,Float_t y); //Returns total charge induced by particle lost eloss GeV
  23   Float_t PadCharge(Int_t /* iPadX */,Int_t /* iPadY */) {return 0;}   //Returns charge for a given pad
  24   void    FirstPad(Float_t x,Float_t y);
  25
  26   void    Segmentation(Int_t Nx,Int_t Ny)    {fNpadsX=Nx;fNpadsY=Ny;Recalc();}
  27   Int_t   NpadsX()                      const{return fNpadsX;}
  28   Int_t   NpadsY()                      const{return fNpadsY;}
  29   void    DeadZone(Float_t a)                {       fDeadZone=a;Recalc();}
  30   Float_t DeadZone()                    const{return fDeadZone;}
  31   void    PadSize(Float_t x,Float_t y)       {       fPadSizeX=x;fPadSizeY=y;Recalc();}
  32   Float_t PadSizeX()                    const{return fPadSizeX;}
  33   Float_t PadSizeY()                    const{return fPadSizeY;}
  34   Float_t SectorSizeX()                 const{return fSectorSizeX;}
  35   Float_t SectorSizeY()                 const{return fSectorSizeY;}
  36   Float_t PcSizeX()                     const{return fPcSizeX;}
  37   Float_t PcSizeY()                     const{return fPcSizeY;}
  38
  39   void    Size(Float_t x,Float_t y,Float_t z){fSizeX=x;fSizeY=y;fSizeZ=z;}
  40   void    GeantSize(Float_t *pArr)      const{pArr[0]=fSizeX/2;pArr[1]=fSizeY/2;pArr[2]=fSizeZ/2;}
  41   Float_t SizeX()                       const{return fSizeX;}
  42   Float_t SizeY()                       const{return fSizeY;}
  43   Float_t SizeZ()                       const{return fSizeZ;}
  44   void    Offset(Float_t offset)             {       fOffset=offset;}
  45   Float_t Offset()                      const{return fOffset;}
  46   void    Angles(Float_t xy,Float_t yz)      {       fAngleXY=xy;fAngleYZ=yz;}
  47   Float_t AngleYZ()                     const{return fAngleYZ*kD2r;}
  48   Float_t AngleXY()                     const{return fAngleXY*kD2r;}
  49   void    AngleRot(Float_t angle)            {       fAngleRot=angle;}
  50   Float_t AngleRot()                    const{return fAngleRot*kD2r;}
  51   void    GapThickness(Float_t a)            {       fGapThickness=a;}
  52   Float_t GapThickness()                const{return fGapThickness;}
  53   void    ProximityGapThickness(Float_t a)   {       fProximityGapThickness=a;}
  54   Float_t ProximityGapThickness()       const{return fProximityGapThickness;}
  55   void    QuartzLength(Float_t a)            {       fQuartzLength=a;}
  56   Float_t QuartzLength()                const{return fQuartzLength;}
  57   void    QuartzWidth(Float_t a)             {       fQuartzWidth=a;}
  58   Float_t QuartzWidth()                 const{return fQuartzWidth;}
  59   void    QuartzThickness(Float_t a)         {       fQuartzThickness=a;}
  60   Float_t QuartzThickness()             const{return fQuartzThickness;}
  61   void    OuterFreonLength(Float_t a)        {       fOuterFreonLength=a;}
  62   Float_t OuterFreonLength()            const{return fOuterFreonLength;}
  63   void    OuterFreonWidth(Float_t a)         {       fOuterFreonWidth=a;}
  64   Float_t OuterFreonWidth()             const{return fOuterFreonWidth;}
  65   void    InnerFreonLength(Float_t a)        {       fInnerFreonLength=a;}
  66   Float_t InnerFreonLength()            const{return fInnerFreonLength;}
  67   void    InnerFreonWidth(Float_t a)         {       fInnerFreonWidth=a;}
  68   Float_t InnerFreonWidth()             const{return fInnerFreonWidth;}
  69   void    FreonThickness(Float_t a)          {       fFreonThickness=a;}
  70   Float_t FreonThickness()              const{return fFreonThickness;}
  71   void    RadiatorToPads(Float_t a)          {       fRadiatorToPads=a;}
  72   Float_t RadiatorToPads()              const{return fRadiatorToPads;}
  73
  74   void    SigmaIntegration(Float_t a)        {       fSigmaIntegration=a;}
  75   Float_t SigmaIntegration()            const{return fSigmaIntegration;}
  76   void    ChargeSpreadX(Float_t a)           {       fChargeSpreadX=a;}
  77   Float_t ChargeSpreadX()               const{return fChargeSpreadX;}
  78   void    ChargeSpreadY(Float_t a)           {       fChargeSpreadY=a;}
  79   Float_t ChargeSpreadY()               const{return fChargeSpreadY;}
  80   Float_t AreaX()                       const{return fSigmaIntegration*fChargeSpreadX;}
  81   Float_t AreaY()                       const{return fSigmaIntegration*fChargeSpreadY;}
  82   void    ChargeSlope(Float_t a)             {       fChargeSlope=a;}
  83   Float_t ChargeSlope()                      {return fChargeSlope;}
  84   void    MaxAdc(Int_t a)                    {       fMaxAdc=a;}
  85   Int_t   MaxAdc()                      const{return fMaxAdc;}
  86   void    Pitch(Float_t a)                   {       fPitch=a;}
  87   Float_t Pitch()                       const{return fPitch;}
  88   void    AlphaFeedback(Float_t a)           {       fAlphaFeedback=a;}
  89   Float_t AlphaFeedback()               const{return fAlphaFeedback;}
  90   void    EIonisation(Float_t a)             {       fEIonisation=a;}
  91   Float_t EIonisation()                 const{return fEIonisation;}
  92   void    SqrtKx3(Float_t a)                 {       fSqrtKx3=a;};
  93   void    Kx2(Float_t a)                     {       fKx2=a;}
  94   void    Kx4(Float_t a)                     {       fKx4=a;}
  95   void    SqrtKy3(Float_t a)                 {       fSqrtKy3=a;}
  96   void    Ky2(Float_t a)                     {       fKy2=a;}
  97   void    Ky4(Float_t a)                     {       fKy4=a;}
  98   void    WireSag(Int_t a)                   {       fWireSag=a;}
  99   void    Voltage(Int_t a)                   {       fVoltage=a;}
 100   Float_t Voltage()                     const{return fVoltage;}
 101 protected:
 102   Int_t   fNpadsX;        Int_t fNpadsY;                      //number of pads along X-Y in whole chamber (6 sectors)
 103   Int_t   fNpadsXsector;  Int_t fNpadsYsector;                //number of pads along X-Y in one sector
 104   Float_t fDeadZone;                              //space between PC sectors, cm
 105   Float_t fPadSizeX,fPadSizeY;                    //pad size, cm
 106   Float_t fSectorSizeX,fSectorSizeY;              //photocathod sector size, cm
 107   Float_t fWirePitch;                             //
 108
 109   Int_t   fCurrentPadX,fCurrentPadY;              //???
 110   Int_t   fCurrentWire;                           //???
 111
 112   Float_t fSizeX;  Float_t fSizeY; Float_t fSizeZ;                                //chamber outer size, cm
 113   Float_t fAngleRot;                                                              //azimuthal rotation XY plane, deg
 114   Float_t fAngleYZ;                                                               //angle between chambers YZ plane, deg
 115   Float_t fAngleXY;                                                               //angle between chambers XY plane, deg
 116   Float_t fOffset;                                                                //chambers offset from IP, cm
 117   Float_t fGapThickness;                                                          //gap thickness, cm
 118   Float_t fProximityGapThickness;                                                 //proximity gap thickness, cm
 119   Float_t fQuartzLength;     Float_t fQuartzWidth;     Float_t fQuartzThickness;  //quartz window size, cm
 120   Float_t fOuterFreonLength; Float_t fOuterFreonWidth;                            //freon box outer size, cm
 121   Float_t fInnerFreonLength; Float_t fInnerFreonWidth;                            //freon box inner size, cm
 122   Float_t fFreonThickness;                                                        //freon thickness
 123   Float_t fRadiatorToPads;                                                        //distance from radiator to pads, cm
 124   Float_t fPcSizeX,fPcSizeY;                                                      //photocathod active area size,cm
 125
 126   Float_t fChargeSlope;              //Slope of the charge distribution
 127   Float_t fChargeSpreadX;            //Width of the charge distribution in x
 128   Float_t fChargeSpreadY;            //Width of the charge distribution in y
 129   Float_t fSigmaIntegration;         //Number of sigma's used for charge distribution
 130   Float_t fAlphaFeedback;            //Feedback photons coefficient
 131   Float_t fEIonisation;              //Mean ionisation energy
 132   Int_t   fMaxAdc;                   //Maximum ADC channel
 133   Float_t fSqrtKx3;                  //Mathieson parameters for x
 134   Float_t fKx2;                      //Mathieson parameters for x
 135   Float_t fKx4;                      //Mathieson parameters for x
 136   Float_t fSqrtKy3;                  //Mathieson parameters for y
 137   Float_t fKy2;                      //Mathieson parameters for y
 138   Float_t fKy4;                      //Mathieson parameters for y
 139   Float_t fPitch;                    //Anode-cathode pitch
 140   Int_t   fWireSag;                  //Flag to turn on/off (0/1) wire sag
 141   Int_t   fVoltage;                  //Working voltage (2000, 2050, 2100, 2150)
 142
 143   ClassDef(AliRICHParam,1)    //RICH main parameters
 144 };
 145 //__________________________________________________________________________________________________
 146 Int_t AliRICHParam::Wire(Float_t x)const
 147 {
 148   Int_t iWire=(x>0)?Int_t(x/fWirePitch)+1:Int_t(x/fWirePitch)-1;
 149   return iWire;
 150 }//Int_t AliRICHParam::Wire(Float_t x, Float_t y)
 151 //__________________________________________________________________________________________________
 152 void AliRICHParam::SigGenInit(Float_t x,Float_t y)
 153 {//Initialises pad and wire position during stepping
 154   L2P(x,y,fCurrentPadX,fCurrentPadY);
 155   fCurrentWire= (x>0) ? Int_t(x/fWirePitch)+1 : Int_t(x/fWirePitch)-1 ;
 156 }
 157 //__________________________________________________________________________________________________
 158 Bool_t AliRICHParam::SigGenCond(Float_t x,Float_t y)
 159 {//Signal will be generated if particle crosses pad boundary or boundary between two wires.
 160   Int_t curPadX,curPadY;
 161   L2P(x,y,curPadX,curPadY);
 162   Int_t currentWire=(x>0) ? Int_t(x/fWirePitch)+1 : Int_t(x/fWirePitch)-1;
 163   if((curPadX != fCurrentPadX) || (curPadY != fCurrentPadY) || (currentWire!=fCurrentWire))
 164     return kTRUE;
 165   else
 166     return kFALSE;
 167 }//Bool_t AliRICHParam::SigGenCond(Float_t x,Float_t y)
 168 //__________________________________________________________________________________________________
 169 Int_t AliRICHParam::L2Px(Float_t x,Float_t y)const
 170 {
 171   Int_t padx,pady;
 172   L2P(x,y,padx,pady);
 173   return padx;
 174 }//Int_t AliRICHParam::L2Px(Float_t x,Float_t y)
 175 //__________________________________________________________________________________________________
 176 Int_t AliRICHParam::L2Py(Float_t x,Float_t y)const
 177 {
 178   Int_t padx,pady;
 179   L2P(x,y,padx,pady);
 180   return pady;
 181 }//Int_t AliRICHParam::L2Px(Float_t x,Float_t y)
 182 //__________________________________________________________________________________________________
 183 #endif //AliRICHParam_h