FMD/AliFMDGainDA.cxx

   1 /**************************************************************************
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   3  *                                                                        *
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  15
  16 /** @file    AliFMDGainDA.cxx
  17     @author  Hans Hjersing Dalsgaard <canute@nbi.dk>
  18     @date    Mon Mar 13 13:46:05 2008
  19     @brief   Derived class for the pulse gain detector algorithm.
  20 */
  21 //____________________________________________________________________
  22 //
  23 // This class contains the implementation of the gain detector
  24 // algorithms (DA) for the FMD.  The data is collected in histograms
  25 // that are reset for each pulse length after the mean and standard
  26 // deviation are put into a TGraphErrors object. After a certain
  27 // number of pulses (usually 8) the graph is fitted to a straight
  28 // line. The gain is then slope of this line as it combines the known
  29 // pulse and the response of the detector.
  30 //
  31 #include "AliFMDGainDA.h"
  32 #include "iostream"
  33 #include "fstream"
  34 #include "AliLog.h"
  35 #include "TF1.h"
  36 #include "TH1.h"
  37 #include "TMath.h"
  38 #include "TGraphErrors.h"
  39 #include "AliFMDParameters.h"
  40
  41 //_____________________________________________________________________
  42 ClassImp(AliFMDGainDA)
  43 #if 0 // Do not delete - here to let Emacs indent properly
  44 ;
  45 #endif
  46
  47 //_____________________________________________________________________
  48 AliFMDGainDA::AliFMDGainDA()
  49   : AliFMDBaseDA(),
  50     fGainArray(),
  51     //fPulseSize(32),
  52     fHighPulse(256),
  53     //fPulseLength(100),
  54     fEventsPerChannel(16),
  55     fCurrentPulse(16),
  56     fCurrentChannel(16),
  57     fNumberOfStripsPerChip(128)
  58 {
  59   fCurrentPulse.Reset(0);
  60   fCurrentChannel.Reset(0);
  61   fOutputFile.open("gains.csv");
  62   fGainArray.SetOwner();
  63 }
  64
  65 //_____________________________________________________________________
  66 AliFMDGainDA::AliFMDGainDA(const AliFMDGainDA & gainDA)
  67   :  AliFMDBaseDA(gainDA),
  68      fGainArray(gainDA.fGainArray),
  69      //fPulseSize(gainDA.fPulseSize),
  70      fHighPulse(gainDA.fHighPulse),
  71      //fPulseLength(gainDA.fPulseLength),
  72      fEventsPerChannel(gainDA.fEventsPerChannel),
  73      fCurrentPulse(gainDA.fCurrentPulse),
  74      fCurrentChannel(gainDA.fCurrentChannel),
  75      fNumberOfStripsPerChip(gainDA.fNumberOfStripsPerChip)
  76 {
  77   fCurrentPulse.Reset(0);
  78   fCurrentChannel.Reset(0);
  79 }
  80
  81 //_____________________________________________________________________
  82 AliFMDGainDA::~AliFMDGainDA()
  83 {
  84 }
  85
  86 //_____________________________________________________________________
  87 void AliFMDGainDA::Init()
  88 {
  89
  90
  91   Int_t nEventsRequired = 0;
  92   for(Int_t i=0;i<fEventsPerChannel.GetSize();i++)
  93     {
  94       Int_t nEvents = (fPulseLength.At(i)*fHighPulse) / fPulseSize.At(i);
  95       fEventsPerChannel.AddAt(nEvents,i);
  96       if(nEvents>nEventsRequired) nEventsRequired = nEvents * fNumberOfStripsPerChip;
  97
  98     }
  99
 100   std::cout<<nEventsRequired<<std::endl;
 101   //8 pulser values * 128 strips * 100 samples
 102
 103
 104   SetRequiredEvents(nEventsRequired);
 105   TObjArray* detArray;
 106   TObjArray* ringArray;
 107   TObjArray* sectorArray;
 108
 109   for(UShort_t det=1;det<=3;det++) {
 110     detArray = new TObjArray();
 111     detArray->SetOwner();
 112     fGainArray.AddAtAndExpand(detArray,det);
 113     for (UShort_t ir = 0; ir < 2; ir++) {
 114       Char_t   ring = (ir == 0 ? 'O' : 'I');
 115       UShort_t nsec = (ir == 0 ? 40  : 20);
 116       UShort_t nstr = (ir == 0 ? 2 : 4);
 117       ringArray = new TObjArray();
 118       ringArray->SetOwner();
 119       detArray->AddAtAndExpand(ringArray,ir);
 120       for(UShort_t sec =0; sec < nsec;  sec++)  {
 121         sectorArray = new TObjArray();
 122         sectorArray->SetOwner();
 123         ringArray->AddAtAndExpand(sectorArray,sec);
 124         for(UShort_t strip = 0; strip < nstr; strip++) {
 125           TH1S* hChannel = new TH1S(Form("hFMD%d%c_%d_%d",det,ring,sec,strip),
 126                                     Form("hFMD%d%c_%d_%d",det,ring,sec,strip),
 127                                     1024,0,1023);
 128           hChannel->SetDirectory(0);
 129           sectorArray->AddAtAndExpand(hChannel,strip);
 130         }
 131       }
 132     }
 133   }
 134 }
 135
 136 //_____________________________________________________________________
 137 void AliFMDGainDA::AddChannelContainer(TObjArray* sectorArray,
 138                                        UShort_t det  ,
 139                                        Char_t   ring,
 140                                        UShort_t sec,
 141                                        UShort_t strip)
 142 {
 143   TGraphErrors* hChannel  = new TGraphErrors();
 144   hChannel->SetName(Form("FMD%d%c[%02d,%03d]", det, ring, sec, strip));
 145   hChannel->SetTitle(Form("FMD%d%c[%02d,%03d] ADC vs DAC",
 146                           det, ring, sec, strip));
 147   sectorArray->AddAtAndExpand(hChannel,strip);
 148 }
 149
 150 //_____________________________________________________________________
 151 void AliFMDGainDA::FillChannels(AliFMDDigit* digit) {
 152
 153   UShort_t det   = digit->Detector();
 154   Char_t   ring  = digit->Ring();
 155   UShort_t sec   = digit->Sector();
 156   UShort_t strip = digit->Strip();
 157
 158
 159   if(strip % fNumberOfStripsPerChip) return;
 160   Int_t vaChip   = strip / fNumberOfStripsPerChip;
 161   TH1S* hChannel = GetChannelHistogram(det, ring, sec, vaChip);
 162   hChannel->Fill(digit->Counts());
 163   UpdatePulseAndADC(det,ring,sec,strip);
 164 }
 165
 166 //_____________________________________________________________________
 167 void AliFMDGainDA::Analyse(UShort_t det,
 168                            Char_t   ring,
 169                            UShort_t sec,
 170                            UShort_t strip) {
 171   TGraphErrors* grChannel = GetChannel(det,ring,sec,strip);
 172   if(!grChannel->GetN()) {
 173     // AliWarning(Form("No entries for FMD%d%c, sector %d, strip %d",
 174     //                 det, ring , sec, strip));
 175     return;
 176   }
 177   TF1 fitFunc("fitFunc","pol1",-10,280);
 178   fitFunc.SetParameters(100,3);
 179   grChannel->Fit("fitFunc","Q0+","",0,fHighPulse);
 180
 181   Float_t chi2ndf = 0;
 182   if(fitFunc.GetNDF())
 183     chi2ndf = fitFunc.GetChisquare() / fitFunc.GetNDF();
 184
 185   fOutputFile << det                         << ','
 186               << ring                        << ','
 187               << sec                         << ','
 188               << strip                       << ','
 189               << fitFunc.GetParameter(1)     << ','
 190               << fitFunc.GetParError(1)      << ','
 191               << chi2ndf                     <<"\n";
 192
 193
 194   if(fSaveHistograms) {
 195     gDirectory->cd(GetSectorPath(det,ring, sec, kTRUE));
 196
 197     TH1F* summary = dynamic_cast<TH1F*>(gDirectory->Get("Summary"));
 198     if (!summary) {
 199       Int_t nStr = (ring == 'I' ? 512 : 256);
 200       summary = new TH1F("Summary", Form("Summary of gains in FMD%d%c[%02d]",
 201                                          det, ring, sec),
 202                          nStr, -.5, nStr-.5);
 203       summary->SetXTitle("Strip");
 204       summary->SetYTitle("Gain [ADC/DAC]");
 205       summary->SetDirectory(gDirectory);
 206     }
 207     summary->SetBinContent(strip+1, fitFunc.GetParameter(1));
 208     summary->SetBinError(strip+1, fitFunc.GetParError(1));
 209
 210     gDirectory->cd(GetStripPath(det,ring,sec,strip, kTRUE));
 211     grChannel->SetName(Form("FMD%d%c[%02d,%03d]",det,ring,sec,strip));
 212     // grChannel->SetDirectory(gDirectory);
 213     grChannel->Write();
 214     // grChannel->Write(Form("grFMD%d%c_%d_%d",det,ring,sec,strip));
 215   }
 216 }
 217
 218 //_____________________________________________________________________
 219 void AliFMDGainDA::WriteHeaderToFile()
 220 {
 221   AliFMDParameters* pars       = AliFMDParameters::Instance();
 222   fOutputFile.write(Form("# %s \n",pars->GetGainShuttleID()),9);
 223   fOutputFile.write("# Detector, "
 224                     "Ring, "
 225                     "Sector, "
 226                     "Strip, "
 227                     "Gain, "
 228                     "Error, "
 229                     "Chi2/NDF \n",56);
 230
 231 }
 232
 233 //_____________________________________________________________________
 234 TH1S* AliFMDGainDA::GetChannelHistogram(UShort_t det,
 235                                         Char_t   ring,
 236                                         UShort_t sec,
 237                                         UShort_t strip)
 238 {
 239
 240   UShort_t  Ring = 1;
 241   if(ring == 'O')
 242     Ring = 0;
 243
 244
 245   TObjArray* detArray  = static_cast<TObjArray*>(fGainArray.At(det));
 246   TObjArray* ringArray = static_cast<TObjArray*>(detArray->At(Ring));
 247   TObjArray* secArray  = static_cast<TObjArray*>(ringArray->At(sec));
 248   TH1S* hChannel       = static_cast<TH1S*>(secArray->At(strip));
 249
 250   return hChannel;
 251 }
 252
 253 //_____________________________________________________________________
 254 TGraphErrors* AliFMDGainDA::GetChannel(UShort_t det,
 255                                        Char_t   ring,
 256                                        UShort_t sec,
 257                                        UShort_t strip)
 258 {
 259   UShort_t      iring     = (ring == 'O' ? 0 : 1);
 260   TObjArray*    detArray  = static_cast<TObjArray*>(fDetectorArray.At(det));
 261   TObjArray*    ringArray = static_cast<TObjArray*>(detArray->At(iring));
 262   TObjArray*    secArray  = static_cast<TObjArray*>(ringArray->At(sec));
 263   TGraphErrors* hChannel  = static_cast<TGraphErrors*>(secArray->At(strip));
 264
 265   return hChannel;
 266 }
 267
 268 //_____________________________________________________________________
 269 void AliFMDGainDA::UpdatePulseAndADC(UShort_t det,
 270                                      Char_t ring,
 271                                      UShort_t sec,
 272                                      UShort_t strip)
 273 {
 274
 275   AliFMDParameters* pars = AliFMDParameters::Instance();
 276   UInt_t ddl, board,chip,ch;
 277   pars->Detector2Hardware(det,ring,sec,strip,ddl,board,chip,ch);
 278   Int_t halfring = GetHalfringIndex(det,ring,board%16);
 279   if(GetCurrentEvent()> (fNumberOfStripsPerChip*fEventsPerChannel.At(halfring)))
 280     return
 281   if(strip % fNumberOfStripsPerChip) return;
 282   if(((GetCurrentEvent()) % fPulseLength.At(halfring)) && GetCurrentEvent() > 0) return;
 283
 284   Int_t vaChip = strip/fNumberOfStripsPerChip;
 285   TH1S* hChannel = GetChannelHistogram(det,ring,sec,vaChip);
 286
 287   if(!hChannel->GetEntries()) {
 288     AliWarning(Form("No entries for FMD%d%c, sector %d, strip %d",
 289                     det, ring , sec, strip));
 290     return;
 291   }
 292   Double_t mean      = hChannel->GetMean();
 293   Double_t rms       = hChannel->GetRMS();
 294   Double_t pulse     = Double_t(fCurrentPulse.At(halfring)) * fPulseSize.At(halfring);
 295   Int_t    firstBin  = hChannel->GetXaxis()->GetFirst();
 296   Int_t    lastBin   = hChannel->GetXaxis()->GetLast();
 297   hChannel->GetXaxis()->SetRangeUser(mean-4*rms,mean+4*rms);
 298
 299   mean               = hChannel->GetMean();
 300   rms                = hChannel->GetRMS();
 301
 302   hChannel->GetXaxis()->SetRange(firstBin,lastBin);
 303
 304   Int_t channelNumber = strip + (GetCurrentEvent()-1)/((fPulseLength.At(halfring)*fHighPulse)/fPulseSize.At(halfring));
 305
 306   TGraphErrors* channel = GetChannel(det,ring,sec,channelNumber);
 307
 308   channel->SetPoint(fCurrentPulse.At(halfring),pulse,mean);
 309   channel->SetPointError(fCurrentPulse.At(halfring),0,rms);
 310
 311   if(fSaveHistograms) {
 312     gDirectory->cd(GetStripPath(det,ring,sec,channelNumber));
 313     hChannel->Write(Form("%s_pulse_%03d",hChannel->GetName(),(Int_t)pulse));
 314
 315   }
 316
 317
 318
 319
 320   hChannel->Reset();
 321
 322 }
 323
 324 //_____________________________________________________________________
 325 void AliFMDGainDA::ResetPulseAndUpdateChannel()
 326 {
 327   //for(Int_t i=0; i<fCurrentPulse.GetSize();i++)
 328   fCurrentPulse.Reset(0);
 329 }
 330
 331 //_____________________________________________________________________
 332 void AliFMDGainDA::FinishEvent()
 333 {
 334   for(Int_t i = 0; i<fPulseLength.GetSize();i++) {
 335     if(GetCurrentEvent()>0 && (GetCurrentEvent() % fPulseLength.At(i) == 0))
 336       fCurrentPulse.AddAt(fCurrentPulse.At(i)+1,i);
 337
 338     if(GetCurrentEvent()>0 && (GetCurrentEvent()) % fEventsPerChannel.At(i) == 0)
 339       fCurrentPulse.AddAt(0,i);
 340   }
 341 }
 342 //_____________________________________________________________________
 343 //
 344 //EOF
 345 //