VZERO/AliVZEROCalibData.cxx

   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: AliVZEROCalibData.cxx,                                            */
  17
  18 /////////////////////////////////////////////////////////////////////////////
  19 //                                                                         //
  20 // class for VZERO calibration                                             //
  21 //                                                                         //
  22 /////////////////////////////////////////////////////////////////////////////
  23
  24 #include <TMath.h>
  25 #include <TObjString.h>
  26 #include <TMap.h>
  27 #include <TH1F.h>
  28 #include <TH2F.h>
  29
  30 #include "AliDCSValue.h"
  31 #include "AliCDBManager.h"
  32 #include "AliCDBEntry.h"
  33 #include "AliVZEROCalibData.h"
  34 #include "AliVZERODataDCS.h"
  35 #include "AliVZEROConst.h"
  36 #include "AliLog.h"
  37
  38 ClassImp(AliVZEROCalibData)
  39
  40 //________________________________________________________________
  41 AliVZEROCalibData::AliVZEROCalibData():
  42   fLightYields(NULL),
  43   fPMGainsA(NULL),
  44   fPMGainsB(NULL)
  45 {
  46   // default constructor
  47
  48     for(int t=0; t<64; t++) {
  49         fMeanHV[t]      = 100.0;
  50         fWidthHV[t]     = 0.0;
  51         fTimeOffset[t]  = 5.0;
  52         fTimeGain[t]    = 1.0;
  53         fDeadChannel[t]= kFALSE;
  54         fDiscriThr[t]  = 2.5;
  55     }
  56     for(int t=0; t<128; t++) {
  57         fPedestal[t]    = 0.0;
  58         fSigma[t]       = 0.0;
  59         fADCmean[t]     = 0.0;
  60         fADCsigma[t]    = 0.0;
  61     }
  62     for(int i=0; i<kNCIUBoards ;i++) {
  63         fTimeResolution[i]  = 25./256.;     // Default time resolution
  64         fWidthResolution[i] = 25./64.;     // Default time width resolution
  65         fMatchWindow[i] = 4;
  66         fSearchWindow[i] = 16;
  67         fTriggerCountOffset[i] = 3247;
  68         fRollOver[i] = 3563;
  69     }
  70
  71 }
  72
  73 //________________________________________________________________
  74 void AliVZEROCalibData::Reset()
  75 {
  76   // reset
  77 }
  78
  79 //________________________________________________________________
  80 AliVZEROCalibData::AliVZEROCalibData(const char* name):
  81   fLightYields(NULL),
  82   fPMGainsA(NULL),
  83   fPMGainsB(NULL)
  84 {
  85   // Constructor
  86    TString namst = "Calib_";
  87    namst += name;
  88    SetName(namst.Data());
  89    SetTitle(namst.Data());
  90    for(int t=0; t<64; t++) {
  91        fMeanHV[t]      = 100.0;
  92        fWidthHV[t]     = 0.0;
  93        fTimeOffset[t]  = 5.0;
  94        fTimeGain[t]    = 1.0;
  95        fDeadChannel[t]= kFALSE;
  96        fDiscriThr[t]  = 2.5;
  97     }
  98    for(int t=0; t<128; t++) {
  99        fPedestal[t]    = 0.0;
 100        fSigma[t]       = 0.0;
 101        fADCmean[t]     = 0.0;
 102        fADCsigma[t]    = 0.0;
 103    }
 104    for(int i=0; i<kNCIUBoards ;i++) {
 105        fTimeResolution[i]  = 25./256.;    // Default time resolution in ns / channel
 106        fWidthResolution[i] = 25./64.;     // Default time width resolution in ns / channel
 107        fMatchWindow[i] = 4;
 108        fSearchWindow[i] = 16;
 109        fTriggerCountOffset[i] = 3247;
 110        fRollOver[i] = 3563;
 111    }
 112
 113 }
 114
 115 //________________________________________________________________
 116 AliVZEROCalibData::AliVZEROCalibData(const AliVZEROCalibData& calibda) :
 117   TNamed(calibda),
 118   fLightYields(NULL),
 119   fPMGainsA(NULL),
 120   fPMGainsB(NULL)
 121 {
 122 // copy constructor
 123
 124   SetName(calibda.GetName());
 125   SetTitle(calibda.GetName());
 126
 127   for(int t=0; t<128; t++) {
 128       fPedestal[t] = calibda.GetPedestal(t);
 129       fSigma[t]    = calibda.GetSigma(t);
 130       fADCmean[t]  = calibda.GetADCmean(t);
 131       fADCsigma[t] = calibda.GetADCsigma(t); }
 132
 133   for(int t=0; t<64; t++) {
 134       fMeanHV[t]       = calibda.GetMeanHV(t);
 135       fWidthHV[t]      = calibda.GetWidthHV(t);
 136       fTimeOffset[t]   = calibda.GetTimeOffset(t);
 137       fTimeGain[t]     = calibda.GetTimeGain(t);
 138       fDeadChannel[t]  = calibda.IsChannelDead(t);
 139       fDiscriThr[t]    = calibda.GetDiscriThr(t);
 140   }
 141
 142   for(int i=0; i<kNCIUBoards ;i++) {
 143       fTimeResolution[i]  = calibda.GetTimeResolution(i);
 144       fWidthResolution[i] = calibda.GetWidthResolution(i);
 145       fMatchWindow[i] = calibda.GetMatchWindow(i);
 146       fSearchWindow[i] = calibda.GetSearchWindow(i);
 147       fTriggerCountOffset[i] = calibda.GetTriggerCountOffset(i);
 148       fRollOver[i] = calibda.GetRollOver(i);
 149   }
 150
 151 }
 152
 153 //________________________________________________________________
 154 AliVZEROCalibData &AliVZEROCalibData::operator =(const AliVZEROCalibData& calibda)
 155 {
 156 // assignment operator
 157
 158   SetName(calibda.GetName());
 159   SetTitle(calibda.GetName());
 160
 161   for(int t=0; t<128; t++) {
 162       fPedestal[t] = calibda.GetPedestal(t);
 163       fSigma[t]    = calibda.GetSigma(t);
 164       fADCmean[t]  = calibda.GetADCmean(t);
 165       fADCsigma[t] = calibda.GetADCsigma(t); }
 166
 167   for(int t=0; t<64; t++) {
 168       fMeanHV[t]       = calibda.GetMeanHV(t);
 169       fWidthHV[t]      = calibda.GetWidthHV(t);
 170       fTimeOffset[t]   = calibda.GetTimeOffset(t);
 171       fTimeGain[t]     = calibda.GetTimeGain(t);
 172       fDeadChannel[t]  = calibda.IsChannelDead(t);
 173       fDiscriThr[t]    = calibda.GetDiscriThr(t);
 174   }
 175   for(int i=0; i<kNCIUBoards ;i++) {
 176       fTimeResolution[i]  = calibda.GetTimeResolution(i);
 177       fWidthResolution[i] = calibda.GetWidthResolution(i);
 178       fMatchWindow[i] = calibda.GetMatchWindow(i);
 179       fSearchWindow[i] = calibda.GetSearchWindow(i);
 180       fTriggerCountOffset[i] = calibda.GetTriggerCountOffset(i);
 181       fRollOver[i] = calibda.GetRollOver(i);
 182   }
 183
 184   return *this;
 185
 186 }
 187
 188 //________________________________________________________________
 189 AliVZEROCalibData::~AliVZEROCalibData()
 190 {
 191   // destructor
 192   if (fLightYields)
 193     delete [] fLightYields;
 194   if (fPMGainsA)
 195     delete [] fPMGainsA;
 196   if (fPMGainsB)
 197     delete [] fPMGainsB;
 198 }
 199 //_____________________________________________________________________________
 200 void AliVZEROCalibData::FillDCSData(AliVZERODataDCS * data){
 201         // Set all parameters from the data get by the shuttle
 202         TMap * params = data->GetFEEParameters();
 203         TIter iter(params);
 204         TObjString* aliasName;
 205
 206         while ((  aliasName = (TObjString*) iter.Next() ))  {
 207                 AliDCSValue* aValue = (AliDCSValue*) params->GetValue(aliasName);
 208                 Int_t val;
 209                 if(aValue) {
 210                         val = aValue->GetUInt();
 211                         AliInfo(Form("%s : %d",aliasName->String().Data(), val));
 212                         SetParameter(aliasName->String(),val);
 213                 }
 214         }
 215
 216         SetMeanHV(data->GetMeanHV());
 217         SetWidthHV(data->GetWidthHV());
 218         SetDeadMap(data->GetDeadMap());
 219
 220 }
 221 //_____________________________________________________________________________
 222 void AliVZEROCalibData::SetParameter(TString name, Int_t val){
 223         // Set given parameter
 224
 225         Int_t iBoard = -1;
 226         Int_t iChannel = -1;
 227
 228         TSeqCollection* nameSplit = name.Tokenize("/");
 229         TObjString * boardName = (TObjString *)nameSplit->At(2);
 230         sscanf(boardName->String().Data(),"CIU%d",&iBoard);
 231
 232         TString paramName = ((TObjString *)nameSplit->At(3))->String();
 233         Char_t channel[2] ; channel[1] = '\0';
 234         channel[0] = paramName[paramName.Sizeof()-2];
 235         sscanf(channel,"%d",&iChannel);
 236
 237         if(name.Contains("TimeResolution")) SetTimeResolution((UShort_t) val,iBoard);
 238         else if(name.Contains("WidthResolution")) SetWidthResolution((UShort_t) val,iBoard);
 239         else if(name.Contains("MatchWindow")) SetMatchWindow((UInt_t) val,iBoard);
 240         else if(name.Contains("SearchWindow")) SetSearchWindow((UInt_t) val,iBoard);
 241         else if(name.Contains("TriggerCountOffset")) SetTriggerCountOffset((UInt_t) val,iBoard);
 242         else if(name.Contains("RollOver")) SetRollOver((UInt_t) val,iBoard);
 243         else if(name.Contains("DelayHit")) SetTimeOffset(0.01*(Float_t)val,iBoard,(iChannel-1));
 244         else if(name.Contains("DiscriThr")) SetDiscriThr(((Float_t)val-2040.)/112.,iBoard,(iChannel-1));
 245         else AliError(Form("No Setter found for FEE parameter : %s",name.Data()));
 246 }
 247
 248 //________________________________________________________________
 249 void AliVZEROCalibData::SetPedestal(const Float_t* Pedestal)
 250 {
 251   if(Pedestal) for(int t=0; t<128; t++) fPedestal[t] = Pedestal[t];
 252   else for(int t=0; t<128; t++) fPedestal[t] = 0.0;
 253 }
 254
 255 //________________________________________________________________
 256 void AliVZEROCalibData::SetSigma(const Float_t* Sigma)
 257 {
 258   if(Sigma) for(int t=0; t<128; t++) fSigma[t] = Sigma[t];
 259   else for(int t=0; t<128; t++) fSigma[t] = 0.0;
 260 }
 261
 262 //________________________________________________________________
 263 void AliVZEROCalibData::SetADCmean(const Float_t* ADCmean)
 264 {
 265   if(ADCmean) for(int t=0; t<128; t++) fADCmean[t] = ADCmean[t];
 266   else for(int t=0; t<128; t++) fADCmean[t] = 0.0;
 267 }
 268
 269 //________________________________________________________________
 270 void AliVZEROCalibData::SetADCsigma(const Float_t* ADCsigma)
 271 {
 272   if(ADCsigma) for(int t=0; t<128; t++) fADCsigma[t] = ADCsigma[t];
 273   else for(int t=0; t<128; t++) fADCsigma[t] = 0.0;
 274 }
 275
 276 //________________________________________________________________
 277 void AliVZEROCalibData::SetMeanHV(const Float_t* MeanHV)
 278 {
 279   if(MeanHV) for(int t=0; t<64; t++) fMeanHV[t] = MeanHV[t];
 280   else for(int t=0; t<64; t++) fMeanHV[t] = 0.0;
 281 }
 282
 283 //________________________________________________________________
 284 void AliVZEROCalibData::SetWidthHV(const Float_t* WidthHV)
 285 {
 286   if(WidthHV) for(int t=0; t<64; t++) fWidthHV[t] = WidthHV[t];
 287   else for(int t=0; t<64; t++) fWidthHV[t] = 0.0;
 288 }
 289
 290 //________________________________________________________________
 291 void AliVZEROCalibData::SetDeadMap(const Bool_t* deadMap)
 292 {
 293   if(deadMap) for(int t=0; t<64; t++) fDeadChannel[t] = deadMap[t];
 294   else for(int t=0; t<64; t++) fDeadChannel[t] = kFALSE;
 295 }
 296
 297 //________________________________________________________________
 298 void AliVZEROCalibData::SetTimeOffset(Float_t val, Int_t board, Int_t channel)
 299 {
 300   Int_t ch = AliVZEROCalibData::GetOfflineChannelNumber(board,channel);
 301   if(ch >= 0){
 302     fTimeOffset[ch]=val;
 303     AliInfo(Form("Time offset for channel %d set to %f",ch,fTimeOffset[ch]));
 304   }
 305   else
 306     AliError("Board/Channel numbers are not valid");
 307 }
 308
 309 //________________________________________________________________
 310 void AliVZEROCalibData::SetTimeOffset(const Float_t* TimeOffset)
 311 {
 312   if(TimeOffset) for(int t=0; t<64; t++) fTimeOffset[t] = TimeOffset[t];
 313   else for(int t=0; t<64; t++) fTimeOffset[t] = 5.0;
 314 }
 315
 316 //________________________________________________________________
 317 void AliVZEROCalibData::SetTimeGain(const Float_t* TimeGain)
 318 {
 319   if(TimeGain) for(int t=0; t<64; t++) fTimeGain[t] = TimeGain[t];
 320   else for(int t=0; t<64; t++) fTimeGain[t] = 0.0;
 321 }
 322
 323 //_____________________________________________________________________________
 324 Float_t AliVZEROCalibData::GetMIPperADC(Int_t channel) {
 325
 326         // Computes the MIP conversion factor - MIP per ADC channel -
 327         // Argument passed is the PM number (aliroot numbering)
 328
 329   Float_t nPhPerMIP = (channel < 32) ? 6950 : 33690;
 330   return 1./(nPhPerMIP*GetLightYields(channel)*0.18*TMath::Qe()*GetGain(channel)/kChargePerADC);
 331
 332 }
 333
 334 //________________________________________________________________
 335 Float_t AliVZEROCalibData::GetGain(Int_t channel)
 336 {
 337   // Computes the PM gains
 338   // Argument passed is the PM number (aliroot numbering)
 339   if (!fPMGainsA) InitPMGains();
 340
 341   // High Voltage retrieval from Calibration Data Base:
 342   Float_t hv = fMeanHV[channel];
 343   Float_t gain = 0;
 344   if (hv>0)
 345     gain = TMath::Exp(fPMGainsA[channel]+fPMGainsB[channel]*TMath::Log(hv));
 346   return gain;
 347 }
 348
 349 //________________________________________________________________
 350 void AliVZEROCalibData::SetTimeResolution(UShort_t *resols){
 351         // Set Time Resolution of the TDC
 352         if(resols)  for(int t=0; t<kNCIUBoards; t++) SetTimeResolution(resols[t],t);
 353         else AliError("Time Resolution not defined.");
 354
 355 }
 356 //________________________________________________________________
 357 void AliVZEROCalibData::SetTimeResolution(UShort_t resol, Int_t board)
 358 {
 359         // Set Time Resolution of the TDC
 360         if((board>=0) && (board<kNCIUBoards)) {
 361                 switch(resol){
 362                         case 0:
 363                                 fTimeResolution[board] = 25./256.;
 364                                 break;
 365                         case 1:
 366                                 fTimeResolution[board] = 25./128.;
 367                                 break;
 368                         case 2:
 369                                 fTimeResolution[board] = 25./64.;
 370                                 break;
 371                         case 3:
 372                                 fTimeResolution[board] = 25./32.;
 373                                 break;
 374                         case 4:
 375                                 fTimeResolution[board] = 25./16.;
 376                                 break;
 377                         case 5:
 378                                 fTimeResolution[board] = 25./8.;
 379                                 break;
 380                         case 6:
 381                                 fTimeResolution[board] = 6.25;
 382                                 break;
 383                         case 7:
 384                                 fTimeResolution[board] = 12.5;
 385                                 break;
 386                 }
 387                 AliInfo(Form("Time Resolution of board %d set to %f",board,fTimeResolution[board]));
 388         } else AliError(Form("Board %d is not valid",board));
 389 }
 390 //________________________________________________________________
 391 void AliVZEROCalibData::SetWidthResolution(UShort_t *resols){
 392         // Set Time Width Resolution of the TDC
 393         if(resols)  for(int t=0; t<kNCIUBoards; t++) SetWidthResolution(resols[t],t);
 394         else AliError("Width Resolution not defined.");
 395
 396 }
 397 //________________________________________________________________
 398 void AliVZEROCalibData::SetWidthResolution(UShort_t resol, Int_t board)
 399 {
 400         // Set Time Width Resolution of the TDC
 401         if((board>=0) && (board<kNCIUBoards)){
 402                 switch(resol){
 403                         case 0:
 404                                 fWidthResolution[board] = 25./256.;
 405                                 break;
 406                         case 1:
 407                                 fWidthResolution[board] = 25./128.;
 408                                 break;
 409                         case 2:
 410                                 fWidthResolution[board] = 25./64.;
 411                                 break;
 412                         case 3:
 413                                 fWidthResolution[board] = 25./32.;
 414                                 break;
 415                         case 4:
 416                                 fWidthResolution[board] = 25./16.;
 417                                 break;
 418                         case 5:
 419                                 fWidthResolution[board] = 25./8.;
 420                                 break;
 421                         case 6:
 422                                 fWidthResolution[board] = 6.25;
 423                                 break;
 424                         case 7:
 425                                 fWidthResolution[board] = 12.5;
 426                                 break;
 427                         case 8:
 428                                 fWidthResolution[board] = 25.;
 429                                 break;
 430                         case 9:
 431                                 fWidthResolution[board] = 50.;
 432                                 break;
 433                         case 10:
 434                                 fWidthResolution[board] = 100.;
 435                                 break;
 436                         case 11:
 437                                 fWidthResolution[board] = 200.;
 438                                 break;
 439                         case 12:
 440                                 fWidthResolution[board] = 400.;
 441                                 break;
 442                         case 13:
 443                                 fWidthResolution[board] = 800.;
 444                                 break;
 445
 446                 }
 447                 AliInfo(Form("Width Resolution of board %d set to %f",board,fWidthResolution[board]));
 448         }else AliError(Form("Board %d is not valid",board));
 449 }
 450
 451 //________________________________________________________________
 452 void AliVZEROCalibData::SetMatchWindow(UInt_t *windows)
 453 {
 454   // Set Match window of the HPTDC
 455   // The units are 25ns
 456   if(windows)  for(Int_t b=0; b<kNCIUBoards; b++) SetMatchWindow(windows[b],b);
 457   else AliError("Match windows not defined.");
 458 }
 459
 460 //________________________________________________________________
 461 void AliVZEROCalibData::SetMatchWindow(UInt_t window, Int_t board)
 462 {
 463   // Set Match window of the HPTDC
 464   // The units are 25ns
 465   if((board>=0) && (board<kNCIUBoards)){
 466     fMatchWindow[board] = window;
 467     AliInfo(Form("Match window of board %d set to %d",board,fMatchWindow[board]));
 468   }
 469   else
 470     AliError(Form("Board %d is not valid",board));
 471 }
 472
 473 //________________________________________________________________
 474 void AliVZEROCalibData::SetSearchWindow(UInt_t *windows)
 475 {
 476   // Set Search window of the HPTDC
 477   // The units are 25ns
 478   if(windows)  for(Int_t b=0; b<kNCIUBoards; b++) SetSearchWindow(windows[b],b);
 479   else AliError("Search windows not defined.");
 480 }
 481
 482 //________________________________________________________________
 483 void  AliVZEROCalibData::SetSearchWindow(UInt_t window, Int_t board)
 484 {
 485   // Set Search window of the HPTDC
 486   // The units are 25ns
 487   if((board>=0) && (board<kNCIUBoards)){
 488     fSearchWindow[board] = window;
 489     AliInfo(Form("Search window of board %d set to %d",board,fSearchWindow[board]));
 490   }
 491   else
 492     AliError(Form("Board %d is not valid",board));
 493 }
 494
 495 //________________________________________________________________
 496 void AliVZEROCalibData::SetTriggerCountOffset(UInt_t *offsets)
 497 {
 498   // Set trigger-count offset of the HPTDC
 499   // The units are 25ns
 500   if(offsets)  for(Int_t b=0; b<kNCIUBoards; b++) SetTriggerCountOffset(offsets[b],b);
 501   else AliError("Trigger count offsets not defined.");
 502 }
 503
 504 //________________________________________________________________
 505 void AliVZEROCalibData::SetTriggerCountOffset(UInt_t offset, Int_t board)
 506 {
 507   // Set trigger-count offsets of the HPTDC
 508   // The units are 25ns
 509   if((board>=0) && (board<kNCIUBoards)){
 510     fTriggerCountOffset[board] = offset;
 511     AliInfo(Form("Trigger-count offset of board %d set to %d",board,fTriggerCountOffset[board]));
 512   }
 513   else
 514     AliError(Form("Board %d is not valid",board));
 515 }
 516
 517 //________________________________________________________________
 518 void AliVZEROCalibData::SetRollOver(UInt_t *offsets)
 519 {
 520   // Set Roll-over of the HPTDC
 521   // The units are 25ns
 522   if(offsets)  for(Int_t b=0; b<kNCIUBoards; b++) SetRollOver(offsets[b],b);
 523   else AliError("Roll-over offsets not defined.");
 524 }
 525
 526 //________________________________________________________________
 527 void AliVZEROCalibData::SetRollOver(UInt_t offset, Int_t board)
 528 {
 529   // Set Roll-over of the HPTDC
 530   // The units are 25ns
 531   if((board>=0) && (board<kNCIUBoards)){
 532     fRollOver[board] = offset;
 533     AliInfo(Form("Roll-over offset of board %d set to %d",board,fRollOver[board]));
 534   }
 535   else
 536     AliError(Form("Board %d is not valid",board));
 537 }
 538
 539 //________________________________________________________________
 540 void AliVZEROCalibData::SetDiscriThr(Float_t thr, Int_t board, Int_t channel)
 541 {
 542   // Set the TDC discriminator
 543   // threshold values expressed in units of ADC
 544   Int_t ch = AliVZEROCalibData::GetOfflineChannelNumber(board,channel);
 545   if(ch >= 0){
 546     if (thr > 0) {
 547       fDiscriThr[ch]=thr;
 548       AliInfo(Form("Discriminator threshold for channel %d set to %f",ch,fDiscriThr[ch]));
 549     }
 550     else {
 551       AliWarning(Form("Ignore wrong threshold value (%f) for channel %d !",thr,ch));
 552     }
 553   }
 554   else
 555     AliError("Board/Channel numbers are not valid");
 556 }
 557
 558 //________________________________________________________________
 559 void AliVZEROCalibData::SetDiscriThr(const Float_t* thresholds)
 560 {
 561   // Set the TDC discriminator
 562   // threshold values expressed in units of ADC
 563   if(thresholds) for(int t=0; t<64; t++) fDiscriThr[t] = thresholds[t];
 564   else for(int t=0; t<64; t++) fDiscriThr[t] = 2.5;
 565 }
 566
 567 Int_t AliVZEROCalibData::GetOfflineChannelNumber(Int_t board, Int_t channel)
 568 {
 569   // Get the offline channel number from
 570   // the FEE board and channel indexes
 571
 572   if (board < 0 || board >= 8) {
 573     AliErrorClass(Form("Wrong FEE board number: %d",board));
 574     return -1;
 575   }
 576   if (channel < 0 || channel >= 8) {
 577     AliErrorClass(Form("Wrong FEE channel number: %d",channel));
 578     return -1;
 579   }
 580
 581   Int_t offCh = (board < 4) ? (8 * board + 32) : (8 * board -32);
 582   offCh += (7 - channel);
 583
 584   return offCh;
 585 }
 586
 587 Int_t AliVZEROCalibData::GetBoardNumber(Int_t channel)
 588 {
 589   // Get FEE board number
 590   // from offline channel index
 591   if (channel >= 0 && channel < 32) return (channel / 8 + 4);
 592   if (channel >=32 && channel < 64) return (channel / 8 - 4);
 593
 594   AliErrorClass(Form("Wrong channel index: %d",channel));
 595   return -1;
 596 }
 597
 598 Int_t AliVZEROCalibData::GetFEEChannelNumber(Int_t channel)
 599 {
 600   // Get FEE channel number
 601   // from offline channel index
 602   if (channel >= 0 && channel < 64) return (7 - (channel % 8));
 603
 604   AliErrorClass(Form("Wrong channel index: %d",channel));
 605   return -1;
 606 }
 607
 608 Float_t AliVZEROCalibData::GetLightYields(Int_t channel)
 609 {
 610   // Get the light yield efficiency
 611   // for a given channel
 612   if (!fLightYields) InitLightYields();
 613
 614   if (channel >= 0 && channel < 64) {
 615     return fLightYields[channel];
 616   }
 617
 618   AliError(Form("Wrong channel index: %d",channel));
 619   return 0;
 620 }
 621
 622 void  AliVZEROCalibData::InitLightYields()
 623 {
 624   // Initialize the light yield factors
 625   // Read from a separate OCDB entry
 626   if (fLightYields) return;
 627
 628   AliCDBEntry *entry = AliCDBManager::Instance()->Get("VZERO/Calib/LightYields");
 629   if (!entry) AliFatal("VZERO light yields are not found in OCDB !");
 630   TH1F *yields = (TH1F*)entry->GetObject();
 631
 632   fLightYields = new Float_t[64];
 633   for(Int_t i = 0 ; i < 64; ++i) {
 634     fLightYields[i] = yields->GetBinContent(i+1);
 635   }
 636 }
 637
 638 void  AliVZEROCalibData::InitPMGains()
 639 {
 640   // Initialize the PM gain factors
 641   // Read from a separate OCDB entry
 642   if (fPMGainsA) return;
 643
 644   AliCDBEntry *entry = AliCDBManager::Instance()->Get("VZERO/Calib/PMGains");
 645   if (!entry) AliFatal("VZERO PM gains are not found in OCDB !");
 646   TH2F *gains = (TH2F*)entry->GetObject();
 647
 648   fPMGainsA = new Float_t[64];
 649   fPMGainsB = new Float_t[64];
 650   for(Int_t i = 0 ; i < 64; ++i) {
 651     fPMGainsA[i] = gains->GetBinContent(i+1,1);
 652     fPMGainsB[i] = gains->GetBinContent(i+1,2);
 653   }
 654 }
 655
 656 Float_t AliVZEROCalibData::GetCalibDiscriThr(Int_t channel, Bool_t scaled)
 657 {
 658   // The method returns actual TDC discri threshold
 659   // extracted from the data.
 660   //
 661   // In case scaled flag is set the threshold is scaled
 662   // so that to get 4.0 for a FEE threshold of 4.0.
 663   // In this way we avoid a change in the slewing correction
 664   // for the entire 2010 p-p data.
 665   //
 666   // The method is to be moved to OCDB object.
 667
 668   Float_t thr = GetDiscriThr(channel);
 669
 670   Float_t calThr = 0;
 671   if (thr <= 1.)
 672     calThr = 3.1;
 673   else if (thr >= 2.)
 674     calThr = (3.1+1.15*thr-1.7);
 675   else
 676     calThr = (3.1-0.3*thr+0.3*thr*thr);
 677
 678   if (scaled) calThr *= 4./(3.1+1.15*4.-1.7);
 679
 680   return calThr;
 681 }