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Use for PID in ITS the Bethe Bloch from AliExternalTrackParam
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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 <TFile.h>
16 #include "AliITSOnlineSDDCMN.h"
17 #include "AliLog.h"
18 #include <TH2F.h>
19 #include <TMath.h>
20
21
22 ///////////////////////////////////////////////////////////////////
23 //                                                               //
24 // Implementation of the class used for analysis of SDD noise    //
25 // corrected for common mode                                     //
26 // Origin: F.Prino, Torino, prino@to.infn.it                     //
27 //                                                               //
28 ///////////////////////////////////////////////////////////////////
29
30
31 ClassImp(AliITSOnlineSDDCMN)
32 //______________________________________________________________________
33   AliITSOnlineSDDCMN::AliITSOnlineSDDCMN():AliITSOnlineSDD(),fNEvents(0),fLowThreshold(0),fHighThreshold(0),fMinCorrNoise(0.),fMaxCorrNoise(0.),fNSigmaNoise(0.)
34 {
35   // default constructor
36   Reset();
37   SetMinNoise();
38   SetMaxNoise();
39   SetNSigmaNoise();
40 }
41 //______________________________________________________________________
42   AliITSOnlineSDDCMN::AliITSOnlineSDDCMN(Int_t nddl, Int_t ncarlos, Int_t sid):AliITSOnlineSDD(nddl,ncarlos,sid),fNEvents(0),fLowThreshold(0),fHighThreshold(0),fMinCorrNoise(0.),fMaxCorrNoise(0.),fNSigmaNoise(0.)
43 {
44   // default constructor
45   Reset();
46   SetMinNoise();
47   SetMaxNoise();
48   SetNSigmaNoise();
49 }
50 //______________________________________________________________________
51 AliITSOnlineSDDCMN::~AliITSOnlineSDDCMN(){
52   // Destructor
53 }
54 //______________________________________________________________________
55 void AliITSOnlineSDDCMN::Reset(){
56   //
57   fNEvents=0;
58   for(Int_t i=0;i<fgkNAnodes;i++){
59     fGoodAnode[i]=1;
60     fBaseline[i]=0.;
61     fRawNoise[i]=0.;
62     fCMN[i]=0.;
63     fSumCorrNoise[i]=0.;
64   }
65   ReadBaselines();
66 }
67 //______________________________________________________________________
68 void AliITSOnlineSDDCMN::ReadBaselines(){
69   // assume baselines and good anodes are taken from previous run
70   Char_t basfilnam[100];
71   sprintf(basfilnam,"SDDbase_step1_ddl%02dc%02d_sid%d.data",fDDL,fCarlos,fSide);
72   FILE* basf=fopen(basfilnam,"r");
73   if(basf==0){
74     AliWarning(Form("Baseline file not present (ddl %d  carlos %d side %d, Set all baselines to 50\n",fDDL,fCarlos,fSide));
75     for(Int_t ian=0;ian<fgkNAnodes;ian++){ 
76       fBaseline[ian]=50.;
77       fEqBaseline[ian]=50;
78       fOffsetBaseline[ian]=0;
79       fGoodAnode[ian]=1;
80     }
81     return;
82   }
83   fscanf(basf,"%d\n",&fHighThreshold);
84   fscanf(basf,"%d\n",&fLowThreshold);
85   Int_t n,ok,eqbase,offbase;
86   Float_t base,rms,cmn,corrnoi;
87   for(Int_t ian=0;ian<fgkNAnodes;ian++){
88     fscanf(basf,"%d %d %f %d %d %f %f %f\n",&n,&ok,&base,&eqbase,&offbase,&rms,&cmn,&corrnoi);
89     fGoodAnode[ian]=ok;
90     fBaseline[ian]=base;
91     fEqBaseline[ian]=eqbase;
92     fOffsetBaseline[ian]=offbase;
93     fRawNoise[ian]=rms;
94     fCMN[ian]=cmn;
95   }
96   fclose(basf);
97 }
98 //______________________________________________________________________
99 void  AliITSOnlineSDDCMN::ValidateAnodes(){
100   //
101   for(Int_t ian=0;ian<fgkNAnodes;ian++){
102     if(!fGoodAnode[ian]) continue;
103     if(GetAnodeCorrNoise(ian)>fMaxCorrNoise || GetAnodeCorrNoise(ian)<fMinCorrNoise) fGoodAnode[ian]=0;
104     if(GetAnodeCorrNoise(ian)>fNSigmaNoise*CalcMeanNoise()) fGoodAnode[ian]=0;
105   }
106 }
107
108 //______________________________________________________________________
109 TH2F* AliITSOnlineSDDCMN::GetCleanEvent(TH2F* hrawd) const {
110   // 
111   TH2F* hcorrd=new TH2F("hcorrd","",hrawd->GetNbinsX(),hrawd->GetXaxis()->GetXmin(),hrawd->GetXaxis()->GetXmax(),hrawd->GetNbinsY(),hrawd->GetYaxis()->GetXmin(),hrawd->GetYaxis()->GetXmax());
112   for(Int_t itb=fFirstGoodTB;itb<=fLastGoodTB;itb++){
113     Float_t sumEven=0., sumOdd=0.;
114     Int_t countEven=0, countOdd=0;
115     for(Int_t ian=0;ian<fgkNAnodes;ian+=2){
116       if(!fGoodAnode[ian]) continue;
117       sumEven+=hrawd->GetBinContent(itb+1,ian+1)-fBaseline[ian];
118       countEven++;
119     }
120     for(Int_t ian=1;ian<fgkNAnodes;ian+=2){
121       if(!fGoodAnode[ian]) continue;
122       sumOdd+=hrawd->GetBinContent(itb+1,ian+1)-fBaseline[ian];
123       countOdd++;
124     }
125     for(Int_t ian=0;ian<fgkNAnodes;ian++){
126       if(!fGoodAnode[ian]) continue;
127       Float_t meanN;
128       if(ian%2==0) meanN=sumEven/(Float_t)countEven;
129       else meanN=sumOdd/(Float_t)countOdd;
130       Float_t cntCorr=hrawd->GetBinContent(itb+1,ian+1)-fCMN[ian]*meanN;
131       hcorrd->SetBinContent(itb+1,ian+1,cntCorr);
132     }
133   }
134   return hcorrd;
135 }
136 //______________________________________________________________________
137 void AliITSOnlineSDDCMN::AddEvent(TH2F* hrawd){
138   // 
139   fNEvents++;
140   TH2F* hcorrd=GetCleanEvent(hrawd);
141
142   for(Int_t ian=0;ian<fgkNAnodes;ian++){
143     if(!fGoodAnode[ian]) continue;
144     Float_t sumQ=0.;
145     Int_t cnt=0;
146     for(Int_t itb=fFirstGoodTB;itb<=fLastGoodTB;itb++){
147       sumQ+=TMath::Power(hcorrd->GetBinContent(itb+1,ian+1)-fBaseline[ian],2); 
148       cnt++;    
149     }
150     fSumCorrNoise[ian]+=TMath::Sqrt(sumQ/(Float_t)cnt);
151   }
152   delete hcorrd;
153 }
154 //______________________________________________________________________
155 Float_t AliITSOnlineSDDCMN::CalcMeanNoise() const{
156   //
157   Float_t meanns=0.;
158   Int_t cnt=0;
159   for(Int_t ian=0;ian<fgkNAnodes;ian++){
160     if(!fGoodAnode[ian]) continue;  
161     meanns+=GetAnodeCorrNoise(ian);
162     cnt++;
163   }
164   if(cnt>0) meanns/=(Float_t)cnt;
165   return meanns;
166 }
167 //______________________________________________________________________
168 void AliITSOnlineSDDCMN::WriteToASCII(){
169   //
170   Char_t outfilnam[100];
171   sprintf(outfilnam,"SDDbase_step2_ddl%02dc%02d_sid%d.data",fDDL,fCarlos,fSide);
172   FILE* outf=fopen(outfilnam,"w");
173   fprintf(outf,"%d\n",fHighThreshold);
174   fprintf(outf,"%d\n",fLowThreshold);
175   for(Int_t ian=0;ian<fgkNAnodes;ian++){
176     fprintf(outf,"%d %d %8.3f %d %d %8.3f %8.3f %8.3f\n",ian,IsAnodeGood(ian),GetAnodeBaseline(ian),GetAnodeEqualizedBaseline(ian),GetAnodeBaselineOffset(ian),GetAnodeRawNoise(ian),GetAnodeCommonMode(ian),GetAnodeCorrNoise(ian));
177   }
178   fclose(outf);  
179 }
180
181 //______________________________________________________________________
182 TH1F* AliITSOnlineSDDCMN::GetBaselineAnodeHisto() const {
183   //
184   Char_t hisnam[20];  
185   sprintf(hisnam,"hbd%02dc%02ds%d",fDDL,fCarlos,fSide);
186   TH1F* h=new TH1F(hisnam,"",256,-0.5,255.5);
187   for(Int_t ian=0;ian<fgkNAnodes;ian++){
188     h->SetBinContent(ian+1,GetAnodeBaseline(ian));
189   }
190   return h;
191 }
192 //______________________________________________________________________
193 TH1F* AliITSOnlineSDDCMN::GetRawNoiseAnodeHisto() const {
194   //
195   Char_t hisnam[20];  
196   sprintf(hisnam,"hnd%02dc%02ds%d",fDDL,fCarlos,fSide);
197   TH1F* h=new TH1F(hisnam,"",256,-0.5,255.5);
198   for(Int_t ian=0;ian<fgkNAnodes;ian++){
199     h->SetBinContent(ian+1,GetAnodeRawNoise(ian));
200   }
201   return h;
202 }
203 //______________________________________________________________________
204 TH1F* AliITSOnlineSDDCMN::GetCorrNoiseAnodeHisto() const {
205   //
206   Char_t hisnam[20];  
207   sprintf(hisnam,"hcd%02dc%02ds%d",fDDL,fCarlos,fSide);
208   TH1F* h=new TH1F(hisnam,"",256,-0.5,255.5);
209   for(Int_t ian=0;ian<fgkNAnodes;ian++){
210     h->SetBinContent(ian+1,GetAnodeCorrNoise(ian));
211   }
212   return h;
213 }
214 //______________________________________________________________________
215 TH1F* AliITSOnlineSDDCMN::GetBaselineHisto() const {
216   //
217   Char_t hisnam[20];  
218   sprintf(hisnam,"hdbd%02dc%02ds%d",fDDL,fCarlos,fSide);
219   TH1F* h=new TH1F(hisnam,"",100,0.,150.);
220   for(Int_t ian=0;ian<fgkNAnodes;ian++){
221     h->Fill(GetAnodeBaseline(ian));
222   }
223   return h;
224 }
225 //______________________________________________________________________
226 TH1F* AliITSOnlineSDDCMN::GetRawNoiseHisto() const {
227   //
228   Char_t hisnam[20];  
229   sprintf(hisnam,"hdnd%02dc%02ds%d",fDDL,fCarlos,fSide);
230   TH1F* h=new TH1F(hisnam,"",100,0.,8.);
231   for(Int_t ian=0;ian<fgkNAnodes;ian++){
232     h->Fill(GetAnodeRawNoise(ian));
233   }
234   return h;
235 }
236 //______________________________________________________________________
237 TH1F* AliITSOnlineSDDCMN::GetCorrNoiseHisto() const {
238   //
239   Char_t hisnam[20];  
240   sprintf(hisnam,"hdcd%02dc%02ds%d",fDDL,fCarlos,fSide);
241   TH1F* h=new TH1F(hisnam,"",100,0.,8.);
242   for(Int_t ian=0;ian<fgkNAnodes;ian++){
243     h->Fill(GetAnodeCorrNoise(ian));
244   }
245   return h;
246 }
247 //______________________________________________________________________
248 Bool_t AliITSOnlineSDDCMN::WriteToROOT(TFile *fil){
249   //
250   if(fil==0){ 
251     AliWarning("Invalid pointer to ROOT file");
252     return kFALSE;    
253   }
254   Char_t hisnam[20];
255   fil->cd();
256   sprintf(hisnam,"hgood%02dc%02ds%d",fDDL,fCarlos,fSide);
257   TH1F hgood(hisnam,"",256,-0.5,255.5);
258   sprintf(hisnam,"hbase%02dc%02ds%d",fDDL,fCarlos,fSide);
259   TH1F hbase(hisnam,"",256,-0.5,255.5);
260   sprintf(hisnam,"hnois%02dc%02ds%d",fDDL,fCarlos,fSide);
261   TH1F hnois(hisnam,"",256,-0.5,255.5);
262   sprintf(hisnam,"hcmn%02dc%02ds%d",fDDL,fCarlos,fSide);
263   TH1F hcmn(hisnam,"",256,-0.5,255.5);
264   sprintf(hisnam,"hcorn%02dc%02ds%d",fDDL,fCarlos,fSide);
265   TH1F hcorn(hisnam,"",256,-0.5,255.5);
266   for(Int_t ian=0;ian<fgkNAnodes;ian++){
267     hgood.SetBinContent(ian+1,float(IsAnodeGood(ian)));
268     hbase.SetBinContent(ian+1,GetAnodeBaseline(ian));
269     hnois.SetBinContent(ian+1,GetAnodeRawNoise(ian));
270     hcmn.SetBinContent(ian+1,GetAnodeCommonMode(ian));
271     hcorn.SetBinContent(ian+1,GetAnodeCorrNoise(ian));
272   }
273   hgood.Write();
274   hbase.Write();
275   hnois.Write();
276   hcmn.Write();
277   hcorn.Write();
278   return kTRUE;
279 }