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d99769c3 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | // $Id$ | |
17 | ||
18 | #include "AliMUONDigitCalibrator.h" | |
19 | ||
d99769c3 | 20 | #include "AliLog.h" |
42825ed9 | 21 | #include "AliMpConstants.h" |
d99769c3 | 22 | #include "AliMUONCalibrationData.h" |
42825ed9 | 23 | #include "AliMUONVDigit.h" |
24 | #include "AliMUONVDigitStore.h" | |
fe6ed686 | 25 | #include "AliMUONLogger.h" |
d1c20d08 | 26 | #include "AliMUONPadStatusMaker.h" |
27 | #include "AliMUONPadStatusMapMaker.h" | |
42825ed9 | 28 | #include "AliMUONVStore.h" |
c795d086 | 29 | #include "AliMUONVCalibParam.h" |
d99769c3 | 30 | |
3d1463c8 | 31 | //----------------------------------------------------------------------------- |
7945aae7 | 32 | /// \class AliMUONDigitCalibrator |
1171bb0a | 33 | /// Class used to calibrate digits (either real or simulated ones). |
34 | /// | |
35 | /// The calibration consists of subtracting the pedestal | |
36 | /// and multiplying by a gain, so that | |
37 | /// Signal = (ADC-pedestal)*gain | |
38 | /// | |
39 | /// Please note also that for the moment, if a digit lies on a dead channel | |
40 | /// we remove this digit from the list of digits. | |
41 | /// FIXME: this has to be revisited. By using the AliMUONDigit::fFlags we | |
42 | /// should in principle flag a digit as bad w/o removing it, but this | |
43 | /// then requires some changes in the cluster finder to deal with this extra | |
44 | /// information correctly (e.g. to set a quality for the cluster if it contains | |
45 | /// bad digits). | |
46 | /// | |
7945aae7 | 47 | /// \author Laurent Aphecetche |
3d1463c8 | 48 | //----------------------------------------------------------------------------- |
7945aae7 | 49 | |
1171bb0a | 50 | |
7945aae7 | 51 | /// \cond CLASSIMP |
d99769c3 | 52 | ClassImp(AliMUONDigitCalibrator) |
7945aae7 | 53 | /// \endcond |
d99769c3 | 54 | |
55 | //_____________________________________________________________________________ | |
49e396d9 | 56 | AliMUONDigitCalibrator::AliMUONDigitCalibrator(const AliMUONCalibrationData& calib) |
42825ed9 | 57 | : TObject(), |
49e396d9 | 58 | fLogger(new AliMUONLogger(1000)), |
59 | fStatusMaker(0x0), | |
60 | fStatusMapMaker(0x0), | |
61 | fPedestals(0x0), | |
62 | fGains(0x0) | |
d99769c3 | 63 | { |
42825ed9 | 64 | /// ctor |
49e396d9 | 65 | fStatusMaker = new AliMUONPadStatusMaker(calib); |
66 | ||
67 | // this is here that we decide on our "goodness" policy, i.e. | |
68 | // what do we call an invalid pad (a pad maybe bad because its HV | |
69 | // was too low, or its pedestals too high, etc..) | |
70 | // FIXME: find a way not to hard-code the goodness policy (i.e. the limits) | |
71 | // here... | |
72 | fStatusMaker->SetHVSt12Limits(1300,1600); | |
73 | fStatusMaker->SetHVSt345Limits(1500,2000); | |
74 | fStatusMaker->SetPedMeanLimits(50,200); | |
75 | fStatusMaker->SetPedSigmaLimits(0.1,3); | |
76 | ||
77 | Int_t mask(0x8080); | |
78 | //FIXME: kind of fake one for the moment, we consider dead only | |
79 | // if ped and/or hv value missing. | |
80 | //WARNING : getting this mask wrong is a very effective way of getting | |
81 | //no digits at all out of this class ;-) | |
82 | ||
83 | Bool_t deferredInitialization = kTRUE; | |
84 | ||
85 | fStatusMapMaker = new AliMUONPadStatusMapMaker(*fStatusMaker,mask,deferredInitialization); | |
86 | ||
87 | fPedestals = calib.Pedestals(); | |
88 | fGains = calib.Gains(); | |
d99769c3 | 89 | } |
90 | ||
91 | //_____________________________________________________________________________ | |
92 | AliMUONDigitCalibrator::~AliMUONDigitCalibrator() | |
93 | { | |
d1c20d08 | 94 | /// dtor. |
49e396d9 | 95 | delete fStatusMaker; |
96 | delete fStatusMapMaker; | |
fe6ed686 | 97 | |
98 | AliInfo("Summary of messages:"); | |
99 | fLogger->Print(); | |
100 | ||
101 | delete fLogger; | |
d99769c3 | 102 | } |
103 | ||
104 | //_____________________________________________________________________________ | |
105 | void | |
42825ed9 | 106 | AliMUONDigitCalibrator::Calibrate(AliMUONVDigitStore& digitStore) |
d99769c3 | 107 | { |
42825ed9 | 108 | /// Calibrate the digits contained in digitStore |
109 | TIter next(digitStore.CreateTrackerIterator()); | |
110 | AliMUONVDigit* digit; | |
c795d086 | 111 | |
42825ed9 | 112 | while ( ( digit = static_cast<AliMUONVDigit*>(next() ) ) ) |
d99769c3 | 113 | { |
42825ed9 | 114 | CalibrateDigit(*digit); |
115 | } | |
116 | } | |
117 | ||
118 | //_____________________________________________________________________________ | |
119 | void | |
120 | AliMUONDigitCalibrator::CalibrateDigit(AliMUONVDigit& digit) | |
121 | { | |
122 | /// Calibrate one digit | |
123 | ||
cf27231a | 124 | if ( digit.IsCalibrated() ) |
125 | { | |
126 | fLogger->Log("ERROR : trying to calibrate a digit twice"); | |
127 | return; | |
128 | } | |
129 | ||
49e396d9 | 130 | Int_t statusMap = fStatusMapMaker->StatusMap(digit.DetElemId(), |
131 | digit.ManuId(), | |
132 | digit.ManuChannel()); | |
133 | ||
42825ed9 | 134 | digit.SetStatusMap(statusMap); |
135 | digit.Calibrated(kTRUE); | |
49e396d9 | 136 | |
42825ed9 | 137 | if ( ( statusMap & AliMUONPadStatusMapMaker::SelfDeadMask() ) != 0 ) |
138 | { | |
139 | // pad itself is bad (not testing its neighbours at this stage) | |
140 | digit.SetCharge(0); | |
141 | fLogger->Log(Form("%s:%d:Channel detElemId %d manuId %d " | |
142 | "manuChannel %d is bad %x",__FILE__,__LINE__, | |
143 | digit.DetElemId(),digit.ManuId(), | |
144 | digit.ManuChannel(),digit.StatusMap())); | |
145 | } | |
146 | else | |
147 | { | |
148 | // If the channel is good, go on with the calibration itself. | |
149 | ||
150 | AliMUONVCalibParam* pedestal = static_cast<AliMUONVCalibParam*> | |
49e396d9 | 151 | (fPedestals->FindObject(digit.DetElemId(),digit.ManuId())); |
42825ed9 | 152 | |
153 | AliMUONVCalibParam* gain = static_cast<AliMUONVCalibParam*> | |
49e396d9 | 154 | (fGains->FindObject(digit.DetElemId(),digit.ManuId())); |
42825ed9 | 155 | |
156 | if (!pedestal) | |
d99769c3 | 157 | { |
42825ed9 | 158 | AliFatal(Form("Got a null ped object for DE,manu=%d,%d", |
159 | digit.DetElemId(),digit.ManuId())); | |
c795d086 | 160 | |
42825ed9 | 161 | } |
162 | if (!gain) | |
163 | { | |
164 | AliFatal(Form("Got a null gain object for DE,manu=%d,%d", | |
165 | digit.DetElemId(),digit.ManuId())); | |
166 | } | |
167 | ||
168 | Int_t manuChannel = digit.ManuChannel(); | |
169 | Float_t adc = digit.ADC(); | |
170 | Float_t padc = adc-pedestal->ValueAsFloat(manuChannel,0); | |
cf27231a | 171 | Float_t charge(0); |
172 | if ( padc > 3.0*pedestal->ValueAsFloat(manuChannel,1) ) | |
42825ed9 | 173 | { |
cf27231a | 174 | Float_t a0 = gain->ValueAsFloat(manuChannel,0); |
175 | Float_t a1 = gain->ValueAsFloat(manuChannel,1); | |
176 | Int_t thres = gain->ValueAsInt(manuChannel,2); | |
177 | if ( padc < thres ) | |
178 | { | |
179 | charge = a0*padc; | |
180 | } | |
181 | else | |
182 | { | |
b7e22562 | 183 | charge = a0*thres + a0*(padc-thres) + a1*(padc-thres)*(padc-thres); |
cf27231a | 184 | } |
42825ed9 | 185 | } |
42825ed9 | 186 | digit.SetCharge(charge); |
cf27231a | 187 | Int_t saturation = gain->ValueAsInt(manuChannel,4); |
42825ed9 | 188 | if ( charge >= saturation ) |
189 | { | |
190 | digit.Saturated(kTRUE); | |
d99769c3 | 191 | } |
192 | } | |
193 | } |