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348f80b7 | 1 | /************************************************************************** |
2 | * Copyright(c) 2007-2009, 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 | #include "AliITSOnlineSDDBase.h" | |
16 | #include <TH2F.h> | |
17 | #include <TMath.h> | |
18 | ||
19 | ||
20 | /////////////////////////////////////////////////////////////////// | |
21 | // // | |
22 | // Implementation of the class used for SDD baselines // | |
23 | // and noise analysis // | |
24 | // Origin: F.Prino, Torino, prino@to.infn.it // | |
25 | // // | |
26 | /////////////////////////////////////////////////////////////////// | |
27 | ||
e7610d19 | 28 | /* $Id$ */ |
29 | ||
30 | const Int_t AliITSOnlineSDDBase::fgkMaxCorr=63; // 6 but correction | |
348f80b7 | 31 | |
32 | ClassImp(AliITSOnlineSDDBase) | |
33 | //______________________________________________________________________ | |
e7610d19 | 34 | AliITSOnlineSDDBase::AliITSOnlineSDDBase():AliITSOnlineSDD(),fNEvents(0),fMinBaseline(0.),fMaxBaseline(0.),fMinRawNoise(0.),fMaxRawNoise(0.),fNSigmaNoise(0.),fGoldenBaseline(0.),fLowThrFact(0.),fHighThrFact(0.) |
348f80b7 | 35 | { |
36 | // default constructor | |
37 | Reset(); | |
38 | SetMinBaseline(); | |
39 | SetMaxBaseline(); | |
40 | SetMinRawNoise(); | |
41 | SetMaxRawNoise(); | |
42 | SetNSigmaNoise(); | |
e7610d19 | 43 | SetGoldenBaselineValue(); |
44 | SetZeroSuppThresholds(); | |
348f80b7 | 45 | } |
46 | //______________________________________________________________________ | |
e7610d19 | 47 | AliITSOnlineSDDBase::AliITSOnlineSDDBase(Int_t nddl, Int_t ncarlos, Int_t sid):AliITSOnlineSDD(nddl,ncarlos,sid),fNEvents(0),fMinBaseline(0.),fMaxBaseline(0.),fMinRawNoise(0.),fMaxRawNoise(0.),fNSigmaNoise(0.),fGoldenBaseline(0.),fLowThrFact(0.),fHighThrFact(0.) |
348f80b7 | 48 | { |
49 | // default constructor | |
50 | Reset(); | |
51 | SetMinBaseline(); | |
52 | SetMaxBaseline(); | |
53 | SetMinRawNoise(); | |
54 | SetMaxRawNoise(); | |
55 | SetNSigmaNoise(); | |
e7610d19 | 56 | SetGoldenBaselineValue(); |
57 | SetZeroSuppThresholds(); | |
348f80b7 | 58 | } |
59 | //______________________________________________________________________ | |
60 | AliITSOnlineSDDBase::~AliITSOnlineSDDBase(){ | |
61 | // Destructor | |
62 | } | |
63 | //______________________________________________________________________ | |
64 | void AliITSOnlineSDDBase::Reset(){ | |
776c19a3 | 65 | // reset all counters |
348f80b7 | 66 | fNEvents=0; |
67 | for(Int_t i=0;i<fgkNAnodes;i++){ | |
68 | fGoodAnode[i]=1; | |
69 | fSumBaseline[i]=0.; | |
70 | fSumRawNoise[i]=0.; | |
71 | fSumCMN[i]=0.; | |
72 | } | |
73 | } | |
74 | //______________________________________________________________________ | |
75 | void AliITSOnlineSDDBase::ValidateAnodes(){ | |
776c19a3 | 76 | // tag good/bad channels |
348f80b7 | 77 | for(Int_t ian=0;ian<fgkNAnodes;ian++){ |
78 | fGoodAnode[ian]=1; | |
e236b0eb | 79 | Float_t basel=GetAnodeBaseline(ian); |
80 | Float_t rawn=GetAnodeRawNoise(ian); | |
81 | Float_t ratio=0.; | |
82 | if(rawn>0) ratio=basel/rawn; | |
83 | if(basel>fMaxBaseline || basel<fMinBaseline) fGoodAnode[ian]=0; | |
84 | else if(rawn>fMaxRawNoise || rawn<fMinRawNoise) fGoodAnode[ian]=0; | |
85 | else if(rawn>fNSigmaNoise*CalcMeanRawNoise()) fGoodAnode[ian]=0; | |
86 | else if(ratio<3.) fGoodAnode[ian]=0; | |
348f80b7 | 87 | } |
88 | } | |
89 | ||
90 | //______________________________________________________________________ | |
91 | void AliITSOnlineSDDBase::AddEvent(TH2F* hrawd){ | |
776c19a3 | 92 | // analyzes one event and adds its ontribution to the various counters |
93 | ||
348f80b7 | 94 | fNEvents++; |
0ddb8c41 | 95 | const Int_t kTimeBins=fLastGoodTB+1; |
348f80b7 | 96 | Float_t sum[fgkNAnodes]; |
97 | for(Int_t ian=0;ian<fgkNAnodes;ian++){ | |
98 | Float_t sumQ=0.; | |
99 | sum[ian]=0.; | |
8db9741f | 100 | Int_t cnt=0; |
750296dd | 101 | for(Int_t itb=fFirstGoodTB;itb<=fLastGoodTB;itb++){ |
a8cd2ab2 | 102 | Float_t cbin=hrawd->GetBinContent(itb+1,ian+1); |
103 | sum[ian]+=cbin; | |
104 | sumQ+=cbin*cbin; | |
8db9741f | 105 | cnt++; |
348f80b7 | 106 | } |
8db9741f | 107 | sum[ian]/=(Float_t)cnt; |
108 | sumQ/=(Float_t)cnt; | |
348f80b7 | 109 | fSumBaseline[ian]+=sum[ian]; |
110 | fSumRawNoise[ian]+=sumQ; | |
348f80b7 | 111 | } |
f2c71038 | 112 | if(fNEvents==1) ValidateAnodes(); |
348f80b7 | 113 | |
4ff6aa93 | 114 | Float_t *cmnEven = new Float_t[kTimeBins]; |
115 | Float_t *cmnOdd = new Float_t[kTimeBins]; | |
750296dd | 116 | for(Int_t itb=fFirstGoodTB;itb<=fLastGoodTB;itb++){ |
348f80b7 | 117 | Float_t sumEven=0., sumOdd=0.; |
118 | Int_t countEven=0,countOdd=0; | |
119 | for(Int_t ian=0;ian<fgkNAnodes;ian+=2){ | |
120 | if(!fGoodAnode[ian]) continue; | |
121 | sumEven+=hrawd->GetBinContent(itb+1,ian+1)-sum[ian]; | |
122 | countEven++; | |
123 | } | |
124 | for(Int_t ian=1;ian<fgkNAnodes;ian+=2){ | |
125 | if(!fGoodAnode[ian]) continue; | |
126 | sumOdd+=hrawd->GetBinContent(itb+1,ian+1)-sum[ian]; | |
127 | countOdd++; | |
128 | } | |
750296dd | 129 | if(countEven>0) cmnEven[itb]=sumEven/countEven; |
130 | if(countOdd>0) cmnOdd[itb]=sumOdd/countOdd; | |
348f80b7 | 131 | } |
132 | for(Int_t ian=0;ian<fgkNAnodes;ian++){ | |
133 | Float_t num=0.,den=0.; | |
134 | if(!fGoodAnode[ian]) continue; | |
750296dd | 135 | for(Int_t itb=fFirstGoodTB;itb<=fLastGoodTB;itb++){ |
348f80b7 | 136 | Float_t cmnCoef=cmnOdd[itb]; |
137 | if(ian%2==0) cmnCoef=cmnEven[itb]; | |
138 | num+=(hrawd->GetBinContent(itb+1,ian+1)-sum[ian])*cmnCoef; | |
a8cd2ab2 | 139 | den+=cmnCoef*cmnCoef; |
348f80b7 | 140 | } |
141 | if(den!=0) fSumCMN[ian]+=num/den; | |
142 | } | |
143 | ||
144 | delete [] cmnEven; | |
145 | delete [] cmnOdd; | |
146 | } | |
147 | //______________________________________________________________________ | |
e7610d19 | 148 | void AliITSOnlineSDDBase::GetMinAndMaxBaseline(Float_t &basMin, Float_t &basMax) const { |
149 | // fills mininum and maximum baseline values | |
150 | basMin=1008.; | |
151 | basMax=0.; | |
152 | for(Int_t ian=0;ian<fgkNAnodes;ian++){ | |
153 | if(!fGoodAnode[ian]) continue; | |
154 | Float_t bas=GetAnodeBaseline(ian); | |
155 | if(bas>0 && bas < basMin) basMin=bas; | |
156 | if(bas>0 && bas > basMax) basMax=bas; | |
157 | } | |
158 | } | |
159 | //______________________________________________________________________ | |
d8303ac8 | 160 | Float_t AliITSOnlineSDDBase::GetMinimumBaseline() const { |
3f8beb0b | 161 | // returns anode with minum baseline value in hybrid |
d8303ac8 | 162 | Float_t basMin=1008.; |
163 | for(Int_t ian=0;ian<fgkNAnodes;ian++){ | |
3f8beb0b | 164 | if(!fGoodAnode[ian]) continue; |
d8303ac8 | 165 | Float_t bas=GetAnodeBaseline(ian); |
166 | if(bas>0 && bas < basMin) basMin=bas; | |
167 | } | |
168 | return basMin; | |
169 | } | |
170 | //______________________________________________________________________ | |
beb262b4 | 171 | Float_t AliITSOnlineSDDBase::CalcMeanRawNoise() const{ |
776c19a3 | 172 | // compute mean value of raw noise |
348f80b7 | 173 | Float_t meanns=0.; |
174 | Int_t cnt=0; | |
175 | for(Int_t ian=0;ian<fgkNAnodes;ian++){ | |
176 | if(!fGoodAnode[ian]) continue; | |
177 | meanns+=GetAnodeRawNoise(ian); | |
178 | cnt++; | |
179 | } | |
180 | if(cnt>0) meanns/=(Float_t)cnt; | |
181 | return meanns; | |
182 | } | |
183 | //______________________________________________________________________ | |
e44f571c | 184 | void AliITSOnlineSDDBase::WriteToASCII(){ |
776c19a3 | 185 | // writes parameters of each channel into an ASCII file |
186 | // to be then read in the successive step for common mode noise | |
187 | // correction (AliITSOnlineSDDCMN) | |
188 | ||
2c4e6a6a | 189 | TString outfilnam; |
e7610d19 | 190 | Float_t basMin,basMax; |
191 | GetMinAndMaxBaseline(basMin,basMax); | |
192 | Float_t finalVal=basMin; | |
193 | if(basMin>fGoldenBaseline && basMax<fGoldenBaseline+fgkMaxCorr) finalVal=fGoldenBaseline; | |
194 | if(basMax<basMin+fgkMaxCorr && basMax>fGoldenBaseline+fgkMaxCorr) finalVal=basMax-fgkMaxCorr; | |
116c6c50 | 195 | |
e7610d19 | 196 | Float_t avNoise=CalcMeanRawNoise(); |
197 | Int_t thrL=(Int_t)(finalVal+fLowThrFact*avNoise+0.5); | |
198 | Int_t thrH=(Int_t)(finalVal+fHighThrFact*avNoise+0.5); | |
116c6c50 | 199 | if(CountGoodAnodes()==0) thrH=255; |
e7610d19 | 200 | |
2c4e6a6a | 201 | outfilnam.Form("SDDbase_step1_ddl%02dc%02d_sid%d.data",fDDL,fCarlos,fSide); |
202 | FILE* outf=fopen(outfilnam.Data(),"w"); | |
e7610d19 | 203 | fprintf(outf,"%d\n",thrH); |
204 | fprintf(outf,"%d\n",thrL); | |
348f80b7 | 205 | Float_t corrnoise=2.; |
206 | for(Int_t ian=0;ian<fgkNAnodes;ian++){ | |
d8303ac8 | 207 | Float_t bas=GetAnodeBaseline(ian); |
e7610d19 | 208 | Int_t corr=(Int_t)(bas-finalVal+0.5); |
209 | if(corr>fgkMaxCorr) corr=fgkMaxCorr; // only 6 bits in jtag for correction | |
3f8beb0b | 210 | if(corr<0) corr=0; // avoid negative numbers |
e7610d19 | 211 | fprintf(outf,"%d %d %11.6f %d %d %11.6f %11.6f %11.6f\n",ian,IsAnodeGood(ian),GetAnodeBaseline(ian),(Int_t)finalVal,corr,GetAnodeRawNoise(ian),GetAnodeCommonMode(ian),corrnoise); |
348f80b7 | 212 | } |
213 | fclose(outf); | |
214 | } |