1 #ifndef ALITRDDIGITIZER_H
2 #define ALITRDDIGITIZER_H
3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
10 // Time response function of the preamp
11 Double_t TRFlandau(Double_t *x, Double_t *par);
17 class AliTRDdigitsManager;
20 ///////////////////////////////////////////////////////
21 // Produces digits from the hits information //
22 ///////////////////////////////////////////////////////
24 class AliTRDdigitizer : public TNamed {
29 AliTRDdigitizer(const Text_t* name, const Text_t* title);
30 AliTRDdigitizer(const AliTRDdigitizer &d);
31 virtual ~AliTRDdigitizer();
32 AliTRDdigitizer &operator=(const AliTRDdigitizer &d);
34 virtual void Copy(TObject &d);
36 virtual Bool_t Open(const Char_t *name, Int_t nEvent = 0);
37 virtual Bool_t MakeDigits();
38 virtual void ReInit();
39 virtual Bool_t SumSDigits();
40 virtual Bool_t WriteDigits();
41 virtual Bool_t InitDetector();
43 virtual void SetGasGain(Float_t gasgain) { fGasGain = gasgain; };
44 virtual void SetNoise(Float_t noise) { fNoise = noise; };
45 virtual void SetChipGain(Float_t chipgain) { fChipGain = chipgain; };
46 virtual void SetADCoutRange(Float_t range) { fADCoutRange = range; };
47 virtual void SetADCinRange(Float_t range) { fADCinRange = range; };
48 virtual void SetADCthreshold(Int_t thresh) { fADCthreshold = thresh; };
49 virtual void SetDiffusion(Int_t diffOn = 1) { fDiffusionOn = diffOn; };
50 virtual void SetDiffusionT(Float_t diff) { fDiffusionT = diff; };
51 virtual void SetDiffusionL(Float_t diff) { fDiffusionL = diff; };
52 virtual void SetElAttach(Int_t elOn = 1) { fElAttachOn = elOn; };
53 virtual void SetElAttachProp(Float_t prop) { fElAttachProp = prop; };
54 virtual void SetExB(Int_t exbOn = 1) { fExBOn = exbOn; };
55 virtual void SetOmegaTau(Float_t ot) { fOmegaTau = ot;
57 virtual void SetPadResponse(Int_t prfOn = 1) { fPRFOn = prfOn; };
58 virtual void SetPRF(TF1 *prf);
59 virtual void SetTimeResponse(Int_t trfOn = 1) { fTRFOn = trfOn;
61 virtual void SetTRF(TF1 *trf);
62 virtual void SetDriftVelocity(Float_t v) { fDriftVelocity = v;
64 virtual void SetPadCoupling(Float_t v) { fPadCoupling = v; };
65 virtual void SetTimeCoupling(Float_t v) { fTimeCoupling = v; };
66 virtual void SetCompress(Int_t c = 1) { fCompress = c; };
67 virtual void SetVerbose(Int_t v = 1) { fVerbose = v; };
68 virtual void SetSDigits(Int_t v = 1) { fSDigits = v; };
70 AliTRDdigitsManager *Digits() const { return fDigits; };
72 virtual Float_t GetGasGain() const { return fGasGain; };
73 virtual Float_t GetNoise() const { return fNoise; };
74 virtual Float_t GetChipGain() const { return fChipGain; };
75 virtual Float_t GetADCoutRange() const { return fADCoutRange; };
76 virtual Float_t GetADCinRange() const { return fADCinRange; };
77 virtual Int_t GetADCthreshold() const { return fADCthreshold; };
78 virtual Float_t GetDiffusionT() const { return fDiffusionT; };
79 virtual Float_t GetDiffusionL() const { return fDiffusionL; };
80 virtual Float_t GetElAttachProp() const { return fElAttachProp; };
81 virtual Float_t GetOmegaTau() const { return fOmegaTau; };
82 virtual TF1 *GetPadResponse() const { return fPRF; };
83 virtual TF1 *GetTimeResponse() const { return fTRF; };
84 virtual Float_t GetDriftVelocity() const { return fDriftVelocity; };
85 virtual Float_t GetPadCoupling() const { return fPadCoupling; };
86 virtual Float_t GetTimeCoupling() const { return fTimeCoupling; };
87 virtual Bool_t GetCompress() const { return fCompress; };
88 virtual Bool_t GetSDigits() const { return fSDigits; };
89 virtual Float_t GetTimeBinWidth() const { return fTimeBinWidth; };
93 TFile *fInputFile; //! ALIROOT-filename
94 AliTRDdigitsManager *fDigits; //! TRD digits manager
95 AliTRD *fTRD; //! TRD detector class
96 AliTRDgeometry *fGeo; //! TRD geometry
98 Int_t fEvent; //! Event number
100 Float_t fGasGain; // Gas gain
101 Float_t fNoise; // Electronics noise
102 Float_t fChipGain; // Electronics gain
103 Float_t fADCoutRange; // ADC output range (number of channels)
104 Float_t fADCinRange; // ADC input range (input charge)
105 Float_t fSinRange; // Input range for summable digits
106 Float_t fSoutRange; // Output range for summable digits
107 Int_t fADCthreshold; // ADC threshold in ADC channel
108 Int_t fDiffusionOn; // Switch for the diffusion
109 Float_t fDiffusionT; // Diffusion in transverse direction
110 Float_t fDiffusionL; // Diffusion in longitudinal direction
111 Int_t fElAttachOn; // Switch for the electron attachment
112 Float_t fElAttachProp; // Propability for electron attachment (for 1m)
113 Int_t fExBOn; // Switch for the ExB effects
114 Float_t fOmegaTau; // Tangens of the Lorentz angle
115 Float_t fLorentzFactor; // Factor due to Lorentz force
116 Int_t fPRFOn; // Switch for the pad response
117 TF1 *fPRF; // Pad response function
118 Float_t *fPRFsmp; //!Sampled pad response
119 Int_t fPRFbin; // Number of bins for the PRF
120 Float_t fPRFlo; // Lower boundary of the PRF
121 Float_t fPRFhi; // Higher boundary of the PRF
122 Float_t fPRFwid; // Bin width of the sampled PRF
123 Int_t fPRFpad; // Distance to next pad in PRF
124 Int_t fTRFOn; // Switch for the time response
125 TF1 *fTRF; // Time response function of the shaper
126 Float_t *fTRFint; //!Integrated time response
127 Int_t fTRFbin; // Number of bins for the TRF
128 Float_t fTRFlo; // Lower boundary of the TRF
129 Float_t fTRFhi; // Higher boundary of the TRF
130 Float_t fTRFwid; // Bin width of the integrated TRF
131 Float_t fDriftVelocity; // Drift velocity (cm / mus)
132 Float_t fTimeBinWidth; // Time bin width in ns
133 Float_t fPadCoupling; // Pad coupling factor
134 Float_t fTimeCoupling; // Time coupling factor (image charge of moving ions)
135 Bool_t fCompress; // Switch to keep only compressed data in memory
136 Int_t fVerbose; // Sets the verbose level
137 Bool_t fSDigits; // Switch for the summable digits
141 virtual Int_t Diffusion(Float_t driftlength, Float_t *xyz);
142 virtual Int_t ExB(Float_t driftlength, Float_t *xyz);
143 virtual Int_t PadResponse(Float_t signal, Float_t dist, Float_t *pad);
144 virtual Float_t TimeResponse(Float_t time);
145 virtual Bool_t CheckDetector(Int_t plane, Int_t chamber, Int_t sector);
146 virtual void SamplePRF();
147 virtual void SampleTRF();
149 ClassDef(AliTRDdigitizer,3) // Produces TRD-Digits