1 /**************************************************************************
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14 **************************************************************************/
16 /** @file AliFMDPedestalDA.cxx
17 @author Hans Hjersing Dalsgaard <canute@nbi.dk>
18 @date Mon Mar 10 09:46:05 2008
19 @brief Derived class for the pedestal detector algorithm.
22 // This class implements the virtual functions of the AliFMDBaseDA
23 // class. The most important of these functions, FillChannels(..) and
24 // Analyse(...) collect and analyse the data of each channel. The
25 // resulting pedestal and noise values are written to a comma
26 // separated values (csv) file on the go. The csv files produced in
27 // this way are the basic input to the AliFMDPreprocessor.
30 #include "AliFMDPedestalDA.h"
38 //_____________________________________________________________________
39 ClassImp(AliFMDPedestalDA)
41 //_____________________________________________________________________
42 AliFMDPedestalDA::AliFMDPedestalDA() : AliFMDBaseDA(),
44 fPedSummary("PedestalSummary","pedestals",51200,0,51200),
45 fNoiseSummary("NoiseSummary","noise",51200,0,51200)
47 fOutputFile.open("peds.csv");
51 //_____________________________________________________________________
52 AliFMDPedestalDA::AliFMDPedestalDA(const AliFMDPedestalDA & pedDA) :
55 fPedSummary("PedestalSummary","pedestals",51200,0,51200),
56 fNoiseSummary("NoiseSummary","noise",51200,0,51200)
61 //_____________________________________________________________________
62 AliFMDPedestalDA::~AliFMDPedestalDA()
66 //_____________________________________________________________________
67 void AliFMDPedestalDA::Init()
69 SetRequiredEvents(1000);
72 //_____________________________________________________________________
73 void AliFMDPedestalDA::AddChannelContainer(TObjArray* sectorArray,
80 AliFMDParameters* pars = AliFMDParameters::Instance();
81 Int_t samples = pars->GetSampleRate(det, ring, sec, strip);
82 TObjArray* sampleArray = new TObjArray(samples);
83 for (size_t sample = 0; sample < samples; sample++) {
84 TH1S* hSample = new TH1S(Form("FMD%d%c[%02d,03%d]_%d",
85 det,ring,sec,strip,sample),
86 Form("FMD%d%c[%02d,%03%d]_%d",
89 hSample->SetXTitle("ADC");
90 hSample->SetYTitle("Events");
91 sampleArray->AddAt(hSample, sample);
93 sectorArray->AddAtAndExpand(sampleArray, strip);
95 TH1S* hChannel = new TH1S(Form("hFMD%d%c_%d_%d",det,ring,sec,strip),
96 Form("hFMD%d%c_%d_%d",det,ring,sec,strip),
99 hChannel->SetDirectory(0);
100 sectorArray->AddAtAndExpand(hChannel,strip);
105 //_____________________________________________________________________
106 void AliFMDPedestalDA::FillChannels(AliFMDDigit* digit)
108 UShort_t det = digit->Detector();
109 Char_t ring = digit->Ring();
110 UShort_t sec = digit->Sector();
111 UShort_t strip = digit->Strip();
114 AliFMDParameters* pars = AliFMDParameters::Instance();
115 Int_t samples = pars->GetSampleRate(det, ring, sec, strip);
116 for (size_t sample = 0; sample < samples; sample++) {
117 TH1S* hSample = GetChannel(det, ring, sec, strip, sample);
118 hSample->Fill(digit->Count(sample));
121 TH1S* hChannel = GetChannel(det, ring, sec, strip);
122 hChannel->Fill(digit->Counts());
126 //_____________________________________________________________________
127 void AliFMDPedestalDA::Analyse(UShort_t det,
133 TH1S* hChannel = GetChannel(det, ring, sec, strip);
134 if(hChannel->GetEntries() == 0) {
135 // AliWarning(Form("No entries for FMD%d%c, sector %d, strip %d",
136 // det,ring,sec,strip));
140 AliDebug(50, Form("Fitting FMD%d%c_%d_%d with %d entries",det,ring,sec,strip,
141 hChannel->GetEntries()));
142 TF1 fitFunc("fitFunc","gausn",0,300);
143 fitFunc.SetParameters(100,100,1);
144 hChannel->Fit("fitFunc","Q0+","",10,200);
146 Float_t mean = hChannel->GetMean();
147 Float_t rms = hChannel->GetRMS();
151 hChannel->GetXaxis()->SetRangeUser(mean-5*rms,mean+5*rms);
153 mean = hChannel->GetMean();
154 rms = hChannel->GetRMS();
160 chi2ndf = fitFunc.GetChisquare() / fitFunc.GetNDF();
162 fOutputFile << det << ','
168 << fitFunc.GetParameter(1) << ','
169 << fitFunc.GetParameter(2) << ','
172 if(fSaveHistograms) {
173 gDirectory->cd(GetSectorPath(det, ring, sec, kTRUE));
174 TH1F* sumPed = dynamic_cast<TH1F*>(gDirectory->Get("Pedestals"));
175 TH1F* sumNoise = dynamic_cast<TH1F*>(gDirectory->Get("Noise"));
176 Int_t nStr = (ring == 'I' ? 512 : 256);
178 sumPed = new TH1F("Pedestals",
179 Form("Summary of pedestals in FMD%d%c[%02d]",
182 sumPed->SetXTitle("Strip");
183 sumPed->SetYTitle("Pedestal [ADC]");
184 sumPed->SetDirectory(gDirectory);
187 sumNoise = new TH1F("Noise",
188 Form("Summary of noise in FMD%d%c[%02d]",
191 sumNoise->SetXTitle("Strip");
192 sumNoise->SetYTitle("Noise [ADC]");
194 sumNoise->SetDirectory(gDirectory);
196 sumPed->SetBinContent(strip+1, mean);
197 sumPed->SetBinError(strip+1, rms);
198 sumNoise->SetBinContent(strip+1, rms);
200 if(sumNoise->GetEntries() == nStr)
201 sumNoise->Write(sumNoise->GetName(),TObject::kOverwrite);
202 if(sumPed->GetEntries() == nStr)
203 sumPed->Write(sumPed->GetName(),TObject::kOverwrite);
205 fPedSummary.SetBinContent(fCurrentChannel,mean);
206 fNoiseSummary.SetBinContent(fCurrentChannel,rms);
209 gDirectory->cd(GetStripPath(det, ring, sec, strip, kTRUE));
210 hChannel->GetXaxis()->SetRange(1,1024);
217 //_____________________________________________________________________
218 void AliFMDPedestalDA::Terminate(TFile* diagFile)
223 fNoiseSummary.Write();
227 //_____________________________________________________________________
228 void AliFMDPedestalDA::WriteHeaderToFile()
230 AliFMDParameters* pars = AliFMDParameters::Instance();
231 fOutputFile.write(Form("# %s \n",pars->GetPedestalShuttleID()),13);
232 fOutputFile.write("# Detector, "
243 //_____________________________________________________________________
244 TH1S* AliFMDPedestalDA::GetChannel(UShort_t det,
249 UShort_t iring = (ring == 'O' ? 0 : 1);
250 TObjArray* detArray = static_cast<TObjArray*>(fDetectorArray.At(det));
251 TObjArray* ringArray = static_cast<TObjArray*>(detArray->At(iring));
252 TObjArray* secArray = static_cast<TObjArray*>(ringArray->At(sec));
254 AliFMDParameters* pars = AliFMDParameters::Instance();
255 Int_t samples = pars->GetSampleRate(det, ring, sec, strip);
256 TObjArray* sampleArray = static_cast<TObjArray*>(secArray->At(strip));
257 TH1S* hSample = static_cast<TH1S*>(sampleArray->At(sample));
260 TH1S* hChannel = static_cast<TH1S*>(secArray->At(strip));
265 //_____________________________________________________________________