TRD/AliTRDparameter.h

   1 #ifndef ALITRDPARAMETER_H
   2 #define ALITRDPARAMETER_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 ///////////////////////////////////////////////////////////////////////////////
   9 //                                                                           //
  10 //  TRD parameter class                                                      //
  11 //                                                                           //
  12 ///////////////////////////////////////////////////////////////////////////////
  13
  14 #include "TNamed.h"
  15
  16 class AliTRDgeometry;
  17
  18 class AliTRDparameter : public TNamed {
  19
  20  public:
  21
  22   enum { kNplan = 6, kNcham = 5, kNsect = 18, kNdet = 540 };
  23
  24   AliTRDparameter();
  25   AliTRDparameter(const Text_t* name, const Text_t* title);
  26   AliTRDparameter(const AliTRDparameter &p);
  27   virtual ~AliTRDparameter();
  28   AliTRDparameter &operator=(const AliTRDparameter &p);
  29
  30   virtual void     Copy(TObject &p);
  31   virtual void     Init();
  32   virtual void     ReInit();
  33
  34   virtual void     SetNRowPad();
  35   virtual void     SetNRowPad(const Int_t p, const Int_t c, const Int_t npad);
  36   virtual void     SetColPadSize(const Int_t p, const Float_t s);
  37   virtual void     SetNTimeBin(const Int_t nbin);
  38   virtual void     SetExpandTimeBin(const Int_t nbefore, const Int_t nafter)
  39                                                                   { fTimeBefore = nbefore;
  40                                                                     fTimeAfter  = nafter; };
  41
  42   virtual void     SetGasGain(Float_t gasgain)                    { fGasGain        = gasgain;  };
  43   virtual void     SetNoise(Float_t noise)                        { fNoise          = noise;    };
  44   virtual void     SetChipGain(Float_t chipgain)                  { fChipGain       = chipgain; };
  45   virtual void     SetADCoutRange(Float_t range)                  { fADCoutRange    = range;    };
  46   virtual void     SetADCinRange(Float_t range)                   { fADCinRange     = range;    };
  47   virtual void     SetADCthreshold(Int_t thresh)                  { fADCthreshold   = thresh;   };
  48   virtual void     SetDiffusion(Int_t diffOn = 1)                 { fDiffusionOn    = diffOn;   };
  49   virtual void     SetElAttach(Int_t elOn = 1)                    { fElAttachOn     = elOn;     };
  50   virtual void     SetElAttachProp(Float_t prop)                  { fElAttachProp   = prop;     };
  51   virtual void     SetExB(Int_t exbOn = 1)                        { fExBOn          = exbOn;    };
  52   virtual void     SetPadResponse(Int_t prfOn = 1)                { fPRFOn          = prfOn;    };
  53   virtual void     SetTimeResponse(Int_t trfOn = 1)               { fTRFOn          = trfOn;
  54                                                                     ReInit();                   };
  55   virtual void     SetCrossTalk(Int_t ctOn = 1)                   { fCTOn           = ctOn;
  56                                                                     ReInit();                   };
  57   virtual void     SetTailCancelation(Int_t tcOn = 1)             { fTCOn           = tcOn;     };
  58   virtual void     SetNexponential(Int_t nexp)                    { fTCnexp         = nexp;     };
  59   virtual void     SetDriftVelocity(Float_t v)                    { fDriftVelocity  = v;
  60                                                                     ReInit();                   };
  61   virtual void     SetPadCoupling(Float_t v)                      { fPadCoupling    = v;        };
  62   virtual void     SetTimeCoupling(Float_t v)                     { fTimeCoupling   = v;        };
  63   virtual void     SetTiltingAngle(Float_t v);
  64
  65   virtual void     SetLUT(Int_t lutOn = 1)                        { fLUTOn          = lutOn;    };
  66   virtual void     SetClusMaxThresh(Int_t thresh)                 { fClusMaxThresh  = thresh;   };
  67   virtual void     SetClusSigThresh(Int_t thresh)                 { fClusSigThresh  = thresh;   };
  68
  69           Int_t    GetRowMax(const Int_t p, const Int_t c, const Int_t s)
  70                                                             const { return fRowMax[p][c][s]; };
  71           Int_t    GetColMax(const Int_t p)                 const { return fColMax[p];       };
  72           Int_t    GetTimeMax()                             const { return fTimeMax;         };
  73           Int_t    GetTimeBefore()                          const { return fTimeBefore;      };
  74           Int_t    GetTimeAfter()                           const { return fTimeAfter;       };
  75           Int_t    GetTimeTotal()                           const { return fTimeMax
  76                                                                          + fTimeBefore
  77                                                                          + fTimeAfter; };
  78
  79           Float_t  GetRow0(const Int_t p, const Int_t c, const Int_t s)
  80                                                             const { return fRow0[p][c][s]; };
  81           Float_t  GetCol0(const Int_t p)                   const { return fCol0[p];       };
  82           Float_t  GetTime0(const Int_t p)                  const { return fTime0[p];      };
  83
  84           Float_t  GetRowPadSize(const Int_t p, const Int_t c, const Int_t s)
  85                                                             const { return fRowPadSize[p][c][s]; };
  86           Float_t  GetColPadSize(const Int_t p)             const { return fColPadSize[p];       };
  87           Float_t  GetTimeBinSize()                         const { return fTimeBinSize;         };
  88
  89           Float_t  GetGasGain()                             const { return fGasGain;       };
  90           Float_t  GetNoise()                               const { return fNoise;         };
  91           Float_t  GetChipGain()                            const { return fChipGain;      };
  92           Float_t  GetADCoutRange()                         const { return fADCoutRange;   };
  93           Float_t  GetADCinRange()                          const { return fADCinRange;    };
  94           Int_t    GetADCthreshold()                        const { return fADCthreshold;  };
  95           Float_t  GetDiffusionT()                          const { return fDiffusionT;    };
  96           Float_t  GetDiffusionL()                          const { return fDiffusionL;    };
  97           Float_t  GetElAttachProp()                        const { return fElAttachProp;  };
  98           Float_t  GetOmegaTau()                            const { return fOmegaTau;      };
  99           Float_t  GetDriftVelocity()                       const { return fDriftVelocity; };
 100           Float_t  GetPadCoupling()                         const { return fPadCoupling;   };
 101           Float_t  GetTimeCoupling()                        const { return fTimeCoupling;  };
 102           Float_t  GetTimeBinWidth()                        const { return fTimeBinWidth;  };
 103           Float_t  GetTRFlo()                               const { return fTRFlo;         };
 104           Float_t  GetTRFhi()                               const { return fTRFhi;         };
 105           Float_t  GetLorentzFactor()                       const { return fLorentzFactor; };
 106           Float_t  GetTCnexp()                              const { return fTCnexp;        };
 107           Float_t  GetTiltingAngle() const;
 108   virtual Float_t  GetDiffusionL(Float_t vd, Float_t b);
 109   virtual Float_t  GetDiffusionT(Float_t vd, Float_t b);
 110   virtual Float_t  GetOmegaTau(Float_t vd, Float_t b);
 111
 112   virtual Int_t    GetClusMaxThresh()                       const { return fClusMaxThresh; };
 113   virtual Int_t    GetClusSigThresh()                       const { return fClusSigThresh; };
 114
 115           Int_t    ExBOn()                                  const { return fExBOn;         };
 116           Int_t    PRFOn()                                  const { return fPRFOn;         };
 117           Int_t    TRFOn()                                  const { return fTRFOn;         };
 118           Int_t    ElAttachOn()                             const { return fElAttachOn;    };
 119           Int_t    DiffusionOn()                            const { return fDiffusionOn;   };
 120           Int_t    CTOn()                                   const { return fCTOn;          };
 121           Int_t    TCOn()                                   const { return fTCOn;          };
 122           Int_t    LUTOn()                                  const { return fLUTOn;         };
 123
 124   virtual Int_t    Diffusion(Float_t driftlength, Float_t *xyz);
 125   virtual Int_t    ExB(Float_t driftlength, Float_t *xyz) const;
 126   virtual Float_t  Col0Tilted(Float_t col0, Float_t rowOffset, Int_t plane);
 127   virtual Int_t    PadResponse(Float_t signal, Float_t dist, Int_t plane, Float_t *pad) const;
 128   virtual Float_t  CrossTalk(Float_t time) const;
 129   virtual Float_t  TimeResponse(Float_t time) const;
 130   virtual Double_t LUTposition(Int_t iplane, Double_t ampL, Double_t ampC, Double_t ampR) const;
 131
 132  protected:
 133
 134   AliTRDgeometry      *fGeo;                                //! TRD geometry
 135
 136   // Pad plane geometry
 137   Int_t                fRowMax[kNplan][kNcham][kNsect];     //  Number of pad-rows
 138   Int_t                fColMax[kNplan];                     //  Number of pad-columns
 139   Int_t                fTimeMax;                            //  Number of timebins in the drift region
 140   Int_t                fTimeBefore;                         //  Number of timebins before the drift region
 141   Int_t                fTimeAfter;                          //  Number of timebins after the drift region
 142
 143   Float_t              fRow0[kNplan][kNcham][kNsect];       //  Row-position of pad 0
 144   Float_t              fCol0[kNplan];                       //  Column-position of pad 0
 145   Float_t              fTime0[kNplan];                      //  Time-position of pad 0
 146
 147   Float_t              fRowPadSize[kNplan][kNcham][kNsect]; //  Pad size in z-direction
 148   Float_t              fColPadSize[kNplan];                 //  Pad size in rphi-direction
 149   Float_t              fTimeBinSize;                        //  Size of the time buckets
 150
 151   // Digitization parameter
 152   Float_t              fField;                              //  Magnetic field
 153   Float_t              fGasGain;                            //  Gas gain
 154   Float_t              fNoise;                              //  Electronics noise
 155   Float_t              fChipGain;                           //  Electronics gain
 156   Float_t              fADCoutRange;                        //  ADC output range (number of channels)
 157   Float_t              fADCinRange;                         //  ADC input range (input charge)
 158   Int_t                fADCthreshold;                       //  ADC threshold in ADC channel
 159   Int_t                fDiffusionOn;                        //  Switch for the diffusion
 160   Float_t              fDiffusionT;                         //  Diffusion in transverse direction
 161   Float_t              fDiffusionL;                         //  Diffusion in longitudinal direction
 162   Int_t                fElAttachOn;                         //  Switch for the electron attachment
 163   Float_t              fElAttachProp;                       //  Propability for electron attachment (for 1m)
 164   Int_t                fExBOn;                              //  Switch for the ExB effects
 165   Float_t              fOmegaTau;                           //  Tangens of the Lorentz angle
 166   Float_t              fLorentzFactor;                      //  Factor due to Lorentz force
 167   Int_t                fPRFOn;                              //  Switch for the pad response
 168   Float_t             *fPRFsmp;                             //! Sampled pad response
 169   Int_t                fPRFbin;                             //  Number of bins for the PRF
 170   Float_t              fPRFlo;                              //  Lower boundary of the PRF
 171   Float_t              fPRFhi;                              //  Higher boundary of the PRF
 172   Float_t              fPRFwid;                             //  Bin width of the sampled PRF
 173   Int_t                fPRFpad;                             //  Distance to next pad in PRF
 174   Int_t                fTRFOn;                              //  Switch for the time response
 175   Float_t             *fTRFsmp;                             //! Integrated time response
 176   Int_t                fTRFbin;                             //  Number of bins for the TRF
 177   Float_t              fTRFlo;                              //  Lower boundary of the TRF
 178   Float_t              fTRFhi;                              //  Higher boundary of the TRF
 179   Float_t              fTRFwid;                             //  Bin width of the integrated TRF
 180   Int_t                fCTOn;                               //  Switch for cross talk
 181   Float_t             *fCTsmp;                              //! Integrated cross talk
 182   Int_t                fTCOn;                               //  Switch for the tail cancelation
 183   Int_t                fTCnexp;                             //  Number of exponential of the digital filter
 184   Float_t              fDriftVelocity;                      //  Drift velocity (cm / mus)
 185   Float_t              fTimeBinWidth;                       //  Time bin width in ns
 186   Float_t              fPadCoupling;                        //  Pad coupling factor
 187   Float_t              fTimeCoupling;                       //  Time coupling factor (image charge of moving ions)
 188   Float_t              fTiltingAngle;                       //  Tilting angle of the readout pads
 189
 190   // Clusterization parameter
 191   Int_t                fClusMaxThresh;                      //  Threshold value for cluster maximum
 192   Int_t                fClusSigThresh;                      //  Threshold value for cluster signal
 193   Int_t                fLUTOn;                              //  Switch for the lookup table method
 194   Int_t                fLUTbin;                             //  Number of bins of the LUT
 195   Float_t             *fLUT;                                //! The lookup table
 196
 197  private:
 198
 199   virtual void         SamplePRF();
 200   virtual void         SampleTRF();
 201   virtual void         FillLUT();
 202
 203   ClassDef(AliTRDparameter,2)                               //  TRD parameter class
 204
 205 };
 206
 207 #endif