1 #ifndef ALIEMCALRAWUTILS_H
2 #define ALIEMCALRAWUTILS_H
3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
7 /* History of cvs commits:
10 * Revision 1.3 2007/10/31 17:15:24 mvl
11 * Fixed bug in raw data unpacking; Added pedestal to signal fit; Added logic to deal with high/low gain
13 * Revision 1.2 2007/09/03 20:55:35 jklay
14 * EMCAL e-by-e reconstruction methods from Cvetan
16 * Revision 1.1 2007/03/17 19:56:38 mvl
17 * Moved signal shape routines from AliEMCAL to separate class AliEMCALRawUtils to streamline raw data reconstruction code.
21 //_________________________________________________________________________
22 // Utility Class for handling Raw data
23 // Does all transitions from Digits to Raw and vice versa,
24 // for simu and reconstruction
26 // Note: the current version is still simplified. Only
27 // one raw signal per digit is generated; either high-gain or low-gain
28 // Need to add concurrent high and low-gain info in the future
29 // No pedestal is added to the raw signal.
31 //*-- Author: Marco van Leeuwen (LBL)
33 #include "TObject.h" // for ROOT types
35 #include "AliCaloRawStream.h"
40 class AliEMCALGeometry;
42 class AliEMCALRawUtils : public TObject {
45 AliEMCALRawUtils(AliEMCALGeometry *pGeometry);
46 virtual ~AliEMCALRawUtils();
48 AliEMCALRawUtils(const AliEMCALRawUtils& rawUtils); //copy ctor
49 AliEMCALRawUtils& operator =(const AliEMCALRawUtils& rawUtils);
52 void Raw2Digits(AliRawReader *reader,TClonesArray *digitsArr);
54 void AddDigit(TClonesArray *digitsArr, Int_t id, Int_t lowGain, Int_t amp, Float_t time);
56 // Signal shape parameters
57 Double_t GetRawFormatHighLowGainFactor() const { return fHighLowGainFactor ;}
58 Int_t GetRawFormatOrder() const { return fOrder ; }
59 Double_t GetRawFormatTau() const { return fTau ; }
60 Int_t GetNoiseThreshold() const { return fNoiseThreshold; }
61 Int_t GetNPedSamples() const { return fNPedSamples; }
63 void SetRawFormatHighLowGainFactor(Double_t val) {fHighLowGainFactor=val;}
64 void SetRawFormatOrder(Int_t val) {fOrder=val; }
65 void SetRawFormatTau(Double_t val) {fTau=val; }
66 void SetNoiseThreshold(Int_t val) {fNoiseThreshold=val; }
67 void SetNPedSamples(Int_t val) {fNPedSamples=val; }
69 static Int_t GetRawFormatTimeBins() { return fgkTimeBins ; }
70 static Double_t GetRawFormatTimeMax() { return fgkTimeBins*fgTimeBinWidth; }
71 static Double_t GetRawFormatTimeBinWidth() { return fgTimeBinWidth; }
72 static Double_t GetRawFormatTimeBin()
73 { return GetRawFormatTimeMax() / GetRawFormatTimeBins(); }
74 Double_t GetRawFormatTimeTrigger() const { return fgTimeTrigger ; }
75 Int_t GetRawFormatThreshold() const { return fgThreshold ; }
76 Int_t GetRawFormatDDLPerSuperModule() const { return fgDDLPerSuperModule ; }
78 virtual Option_t* GetOption() const { return fOption.Data(); }
79 void SetOption(Option_t* opt) { fOption = opt; }
81 // Signal shape functions
82 void FitRaw(TGraph * gSig, TF1* signalF, Float_t & amp, Float_t & time);
83 static Double_t RawResponseFunction(Double_t *x, Double_t *par);
84 Bool_t RawSampledResponse(Double_t dtime, Double_t damp, Int_t * adcH, Int_t * adcL) const;
88 Double_t fHighLowGainFactor ; // high to low gain factor for the raw RO signal
89 Int_t fOrder ; // order of the gamma function for the RO signal
90 Double_t fTau ; // tau parameter of gamma function for the RO signal
91 Int_t fNoiseThreshold; // threshold to consider signal or noise
92 Int_t fNPedSamples; // number of samples to use in pedestal calculation
94 static const Int_t fgkOverflowCut = 950; // cut to discriminate overflowed channels
95 static const Int_t fgkTimeBins = 256 ; // number of sampling bins of the raw RO signal
96 static const Int_t fgkRawSignalOverflow = 0x3FF; // maximum signal (10 bits)
98 static Double_t fgTimeTrigger ; // time of the trigger for the RO signal
99 static Double_t fgTimeBinWidth; // maximum sampled time of the raw RO signal
100 static Int_t fgThreshold; // threshold
101 static Int_t fgDDLPerSuperModule; // number of DDL per SuperModule
102 static Int_t fgPedestalValue; // pedestal value for Digits2Raw
103 static Double_t fgFEENoise; // electronics noise in ADC units
105 AliEMCALGeometry* fGeom; //geometry
106 AliAltroMapping* fMapping[2]; //only two for now
108 TString fOption; //! option passed from Reconstructor
110 ClassDef(AliEMCALRawUtils,3) // utilities for raw signal fitting