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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 */ | |
5 | ||
6 | /* $Id$ */ | |
7 | /* History of cvs commits: | |
8 | * | |
9 | * $Log$ | |
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 | |
12 | * | |
13 | * Revision 1.2 2007/09/03 20:55:35 jklay | |
14 | * EMCAL e-by-e reconstruction methods from Cvetan | |
15 | * | |
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. | |
18 | * | |
19 | * | |
20 | */ | |
21 | //_________________________________________________________________________ | |
22 | // Utility Class for handling Raw data | |
23 | // Does all transitions from Digits to Raw and vice versa, | |
24 | // for simu and reconstruction | |
25 | // | |
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. | |
30 | // | |
31 | //*-- Author: Marco van Leeuwen (LBL) | |
32 | // | |
33 | #include "TObject.h" // for ROOT types | |
34 | #include <TString.h> | |
35 | #include "AliCaloRawStream.h" | |
36 | ||
37 | class TGraph; | |
38 | class TF1; | |
39 | class AliRawReader; | |
40 | class AliEMCALGeometry; | |
41 | ||
42 | class AliEMCALRawUtils : public TObject { | |
43 | public: | |
44 | AliEMCALRawUtils(); | |
45 | virtual ~AliEMCALRawUtils(); | |
46 | ||
47 | AliEMCALRawUtils(const AliEMCALRawUtils& rawUtils); //copy ctor | |
48 | AliEMCALRawUtils& operator =(const AliEMCALRawUtils& rawUtils); | |
49 | ||
50 | void Digits2Raw(); | |
51 | void Raw2Digits(AliRawReader *reader,TClonesArray *digitsArr); | |
52 | ||
53 | void AddDigit(TClonesArray *digitsArr, Int_t id, Int_t lowGain, Int_t amp, Float_t time); | |
54 | ||
55 | // Signal shape parameters | |
56 | Double_t GetRawFormatHighLowGainFactor() const { return fHighLowGainFactor ;} | |
57 | Int_t GetRawFormatOrder() const { return fOrder ; } | |
58 | Double_t GetRawFormatTau() const { return fTau ; } | |
59 | Int_t GetNoiseThreshold() const { return fNoiseThreshold; } | |
60 | Int_t GetNPedSamples() const { return fNPedSamples; } | |
61 | ||
62 | void SetRawFormatHighLowGainFactor(Double_t val) {fHighLowGainFactor=val;} | |
63 | void SetRawFormatOrder(Int_t val) {fOrder=val; } | |
64 | void SetRawFormatTau(Double_t val) {fTau=val; } | |
65 | void SetNoiseThreshold(Int_t val) {fNoiseThreshold=val; } | |
66 | void SetNPedSamples(Int_t val) {fNPedSamples=val; } | |
67 | ||
68 | static Int_t GetRawFormatTimeBins() { return fgkTimeBins ; } | |
69 | static Double_t GetRawFormatTimeMax() { return fgkTimeBins*fgTimeBinWidth; } | |
70 | static Double_t GetRawFormatTimeBinWidth() { return fgTimeBinWidth; } | |
71 | static Double_t GetRawFormatTimeBin() | |
72 | { return GetRawFormatTimeMax() / GetRawFormatTimeBins(); } | |
73 | Double_t GetRawFormatTimeTrigger() const { return fgTimeTrigger ; } | |
74 | Int_t GetRawFormatThreshold() const { return fgThreshold ; } | |
75 | Int_t GetRawFormatDDLPerSuperModule() const { return fgDDLPerSuperModule ; } | |
76 | ||
77 | virtual Option_t* GetOption() const { return fOption.Data(); } | |
78 | void SetOption(Option_t* opt) { fOption = opt; } | |
79 | ||
80 | // Signal shape functions | |
81 | void FitRaw(TGraph * gSig, TF1* signalF, Float_t & amp, Float_t & time); | |
82 | static Double_t RawResponseFunction(Double_t *x, Double_t *par); | |
83 | Bool_t RawSampledResponse(Double_t dtime, Double_t damp, Int_t * adcH, Int_t * adcL) const; | |
84 | ||
85 | ||
86 | private: | |
87 | Double_t fHighLowGainFactor ; // high to low gain factor for the raw RO signal | |
88 | Int_t fOrder ; // order of the gamma function for the RO signal | |
89 | Double_t fTau ; // tau parameter of gamma function for the RO signal | |
90 | Int_t fNoiseThreshold; // threshold to consider signal or noise | |
91 | Int_t fNPedSamples; // number of samples to use in pedestal calculation | |
92 | ||
93 | static const Int_t fgkOverflowCut = 950; // cut to discriminate overflowed channels | |
94 | static const Int_t fgkTimeBins = 256 ; // number of sampling bins of the raw RO signal | |
95 | static const Int_t fgkRawSignalOverflow = 0x3FF; // maximum signal (10 bits) | |
96 | ||
97 | static Double_t fgTimeTrigger ; // time of the trigger for the RO signal | |
98 | static Double_t fgTimeBinWidth; // maximum sampled time of the raw RO signal | |
99 | static Int_t fgThreshold; // threshold | |
100 | static Int_t fgDDLPerSuperModule; // number of DDL per SuperModule | |
101 | static Int_t fgPedestalValue; // pedestal value for Digits2Raw | |
102 | static Double_t fgFEENoise; // electronics noise in ADC units | |
103 | ||
104 | AliEMCALGeometry* fGeom; //geometry | |
105 | AliAltroMapping* fMapping[2]; //only two for now | |
106 | ||
107 | TString fOption; //! option passed from Reconstructor | |
108 | ||
109 | ClassDef(AliEMCALRawUtils,3) // utilities for raw signal fitting | |
110 | }; | |
111 | ||
112 | #endif |