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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" |
21 | #include "AliMUONCalibrationData.h" | |
22 | #include "AliMUONConstants.h" | |
23 | #include "AliMUONData.h" | |
24 | #include "AliMUONDigit.h" | |
fe6ed686 | 25 | #include "AliMUONLogger.h" |
d1c20d08 | 26 | #include "AliMUONPadStatusMaker.h" |
27 | #include "AliMUONPadStatusMapMaker.h" | |
28 | #include "AliMUONV2DStore.h" | |
c795d086 | 29 | #include "AliMUONVCalibParam.h" |
d99769c3 | 30 | #include "TClonesArray.h" |
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 |
48 | ||
1171bb0a | 49 | |
7945aae7 | 50 | /// \cond CLASSIMP |
d99769c3 | 51 | ClassImp(AliMUONDigitCalibrator) |
7945aae7 | 52 | /// \endcond |
d99769c3 | 53 | |
54 | //_____________________________________________________________________________ | |
55 | AliMUONDigitCalibrator::AliMUONDigitCalibrator(AliMUONData* muonData, | |
20356e33 | 56 | AliMUONCalibrationData* calib, |
57 | Bool_t createAndUseStatusMap) | |
d1c20d08 | 58 | : TTask("AliMUONDigitCalibrator","Raw digit calibration"), |
d99769c3 | 59 | fData(muonData), |
d1c20d08 | 60 | fCalibrationData(calib), |
fe6ed686 | 61 | fStatusMap(0x0), |
62 | fLogger(new AliMUONLogger(1000)) | |
d99769c3 | 63 | { |
d1c20d08 | 64 | /// ctor. This class needs the muonData to get access to the digit, |
7945aae7 | 65 | /// and the calibrationData to get access to calibration parameters. |
d1c20d08 | 66 | |
fe6ed686 | 67 | if (!calib) { |
68 | AliFatal("No calibration data defined"); | |
69 | } | |
d1c20d08 | 70 | |
20356e33 | 71 | if (createAndUseStatusMap) |
72 | { | |
73 | AliMUONPadStatusMaker maker(*calib); | |
74 | ||
75 | // this is here that we decide on our "goodness" policy, i.e. | |
92c444bc | 76 | // what do we call an invalid pad (a pad maybe bad because its HV |
20356e33 | 77 | // was too low, or its pedestals too high, etc..) |
78 | // | |
79 | maker.SetHVSt12Limits(1300,1600); | |
80 | maker.SetHVSt345Limits(1500,2000); | |
81 | maker.SetPedMeanLimits(50,200); | |
82 | maker.SetPedSigmaLimits(0.1,3); | |
83 | ||
84 | // From this set of limits, compute the status of all tracker pads. | |
fe6ed686 | 85 | AliMUONV2DStore* status = maker.MakeStatus(); |
86 | // we do not check that status is != 0x0, as this is supposed to be | |
87 | // the responsability of the padStatusMaker. | |
20356e33 | 88 | |
92c444bc | 89 | AliMUONPadStatusMapMaker mapMaker(*calib); |
20356e33 | 90 | |
fe6ed686 | 91 | Int_t mask(0x8080); |
92 | //FIXME: kind of fake one for the moment, we consider dead only | |
93 | // if ped and/or hv value missing. | |
94 | //WARNING : getting this mask wrong is a very effective way of getting | |
95 | //no digits at all out of this class ;-) | |
20356e33 | 96 | |
97 | fStatusMap = mapMaker.MakePadStatusMap(*status,mask); | |
98 | ||
99 | delete status; | |
100 | } | |
101 | else | |
102 | { | |
103 | // make a fake (empty) status map | |
104 | fStatusMap = AliMUONPadStatusMapMaker::MakeEmptyPadStatusMap(); | |
105 | } | |
d99769c3 | 106 | } |
107 | ||
108 | //_____________________________________________________________________________ | |
109 | AliMUONDigitCalibrator::~AliMUONDigitCalibrator() | |
110 | { | |
d1c20d08 | 111 | /// dtor. |
112 | delete fStatusMap; | |
fe6ed686 | 113 | |
114 | AliInfo("Summary of messages:"); | |
115 | fLogger->Print(); | |
116 | ||
117 | delete fLogger; | |
d99769c3 | 118 | } |
119 | ||
120 | //_____________________________________________________________________________ | |
121 | void | |
122 | AliMUONDigitCalibrator::Exec(Option_t*) | |
123 | { | |
7945aae7 | 124 | /// Main method. |
125 | /// We loop on tracking chambers (i.e. we do nothing for trigger) | |
126 | /// and for each digit in that chamber, we calibrate it : | |
d1c20d08 | 127 | /// a) we set its status map and if status is bad, set the signal to zero |
7945aae7 | 128 | /// b) we then apply pedestal and gain corrections. |
c795d086 | 129 | |
d99769c3 | 130 | for ( Int_t ch = 0; ch < AliMUONConstants::NTrackingCh(); ++ch ) |
131 | { | |
132 | TClonesArray* digitArray = fData->Digits(ch); | |
133 | Int_t nDigits = digitArray->GetEntriesFast(); | |
134 | for ( Int_t d = 0; d < nDigits; ++d ) | |
135 | { | |
136 | AliMUONDigit* digit = | |
137 | static_cast<AliMUONDigit*>(digitArray->UncheckedAt(d)); | |
138 | ||
d1c20d08 | 139 | AliMUONVCalibParam* deadmap = static_cast<AliMUONVCalibParam*> |
140 | (fStatusMap->Get(digit->DetElemId(),digit->ManuId())); | |
141 | Int_t statusMap = deadmap->ValueAsInt(digit->ManuChannel()); | |
142 | digit->SetStatusMap(statusMap); | |
143 | if ( ( statusMap & AliMUONPadStatusMapMaker::SelfDeadMask() ) != 0 ) // pad itself is bad (not testing its neighbours at this stage) | |
c795d086 | 144 | { |
c795d086 | 145 | digit->SetSignal(0); |
fe6ed686 | 146 | fLogger->Log(Form("%s:%d:Channel detElemId %d manuId %d " |
147 | "manuChannel %d is bad %x",__FILE__,__LINE__, | |
148 | digit->DetElemId(),digit->ManuId(), | |
d1c20d08 | 149 | digit->ManuChannel(),digit->StatusMap())); |
c795d086 | 150 | continue; |
151 | } | |
152 | ||
153 | // If the channel is good, go on with the calibration itself. | |
154 | ||
155 | AliMUONVCalibParam* pedestal = static_cast<AliMUONVCalibParam*> | |
1171bb0a | 156 | (fCalibrationData->Pedestals(digit->DetElemId(),digit->ManuId())); |
c795d086 | 157 | |
158 | AliMUONVCalibParam* gain = static_cast<AliMUONVCalibParam*> | |
1171bb0a | 159 | (fCalibrationData->Gains(digit->DetElemId(),digit->ManuId())); |
d99769c3 | 160 | |
d99769c3 | 161 | if (!pedestal) |
162 | { | |
c795d086 | 163 | AliFatal(Form("Got a null ped object for DE,manu=%d,%d", |
164 | digit->DetElemId(),digit->ManuId())); | |
d99769c3 | 165 | |
166 | } | |
167 | if (!gain) | |
168 | { | |
c795d086 | 169 | AliFatal(Form("Got a null gain object for DE,manu=%d,%d", |
170 | digit->DetElemId(),digit->ManuId())); | |
d99769c3 | 171 | } |
172 | ||
c795d086 | 173 | Int_t manuChannel = digit->ManuChannel(); |
45dd3605 | 174 | Float_t adc = digit->Signal(); |
c795d086 | 175 | Float_t padc = adc-pedestal->ValueAsFloat(manuChannel,0); |
176 | if ( padc < 3.0*pedestal->ValueAsFloat(manuChannel,1) ) | |
d99769c3 | 177 | { |
178 | padc = 0.0; | |
179 | } | |
c795d086 | 180 | Float_t charge = padc*gain->ValueAsFloat(manuChannel,0); |
45dd3605 | 181 | digit->SetSignal(charge); |
c795d086 | 182 | Int_t saturation = gain->ValueAsInt(manuChannel,1); |
45dd3605 | 183 | if ( charge >= saturation ) |
c795d086 | 184 | { |
185 | digit->Saturated(kTRUE); | |
186 | } | |
d99769c3 | 187 | } |
188 | } | |
189 | } |