VZERO/AliVZEROTriggerSimulator.cxx

   1 /**************************************************************************\r
   2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *\r
   3  *                                                                        *\r
   4  * Author: The ALICE Off-line Project.                                    *\r
   5  * Contributors are mentioned in the code where appropriate.              *\r
   6  *                                                                        *\r
   7  * Permission to use, copy, modify and distribute this software and its   *\r
   8  * documentation strictly for non-commercial purposes is hereby granted   *\r
   9  * without fee, provided that the above copyright notice appears in all   *\r
  10  * copies and that both the copyright notice and this permission notice   *\r
  11  * appear in the supporting documentation. The authors make no claims     *\r
  12  * about the suitability of this software for any purpose. It is          *\r
  13  * provided "as is" without express or implied warranty.                  *\r
  14  **************************************************************************/\r
  15 // \r
  16 // Class AliVZEROTriggerSimulator\r
  17 // ------------------------------\r
  18 //  Simulate the VZERO Trigger response\r
  19 // Use FEE parameters stored in Database\r
  20 // Can work on real data or in simulation\r
  21 //\r
  22 \r
  23 #include <TTree.h>\r
  24 #include <TClonesArray.h>\r
  25 #include <TParameter.h>\r
  26 \r
  27 #include "AliLog.h"\r
  28 #include "AliCDBManager.h"\r
  29 #include "AliCDBEntry.h"\r
  30 #include "AliCDBStorage.h"\r
  31 #include "AliCDBId.h"\r
  32 #include "AliVZEROTriggerData.h"\r
  33 #include "AliVZEROLogicalSignal.h"\r
  34 #include "AliVZEROTriggerSimulator.h"\r
  35 #include "AliVZEROdigit.h"\r
  36 #include "AliVZEROCalibData.h"\r
  37 #include "AliVZEROConst.h"\r
  38 #include "AliCTPTimeParams.h"\r
  39 \r
  40 ClassImp(AliVZEROTriggerSimulator)\r
  41 \r
  42 //_____________________________________________________________________________\r
  43 AliVZEROTriggerSimulator::AliVZEROTriggerSimulator(TTree * digitsTree, TClonesArray* digits) : \r
  44 TObject(),fTriggerData(NULL),fDigitsTree(digitsTree),fDigits(digits),fTriggerWord(0)\r
  45 {\r
  46         // constructor\r
  47         fTriggerData = LoadTriggerData();\r
  48         LoadClockOffset();\r
  49         \r
  50         for(int i=0;i<64;i++) {\r
  51                 fBBFlags[i] = fBGFlags[i] = kFALSE;\r
  52                 fCharges[i] = 0.;\r
  53         }\r
  54         GenerateBBWindows();\r
  55         GenerateBGWindows();\r
  56         for (int i=0; i<AliVZEROTriggerData::kNCIUBoards; i++) {\r
  57                 fBBLatch[i] = new AliVZEROLogicalSignal(fTriggerData->GetLatchWin1(i),0); \r
  58                 fBGLatch[i] = new AliVZEROLogicalSignal(fTriggerData->GetLatchWin2(i),0); \r
  59                 fBBReset[i] = new AliVZEROLogicalSignal(fTriggerData->GetResetWin1(i),0);\r
  60                 fBGReset[i] = new AliVZEROLogicalSignal(fTriggerData->GetResetWin2(i),0);               \r
  61         }\r
  62 }\r
  63 //_____________________________________________________________________________\r
  64 AliVZEROTriggerSimulator::AliVZEROTriggerSimulator() : \r
  65 TObject(),fTriggerData(NULL),fDigitsTree(NULL),fDigits(NULL),fTriggerWord(0)\r
  66 {\r
  67         // Default constructor\r
  68         fTriggerData = LoadTriggerData();\r
  69         LoadClockOffset();\r
  70 \r
  71         for(int i=0;i<64;i++) {\r
  72                 fBBFlags[i] = fBGFlags[i] = kFALSE;\r
  73                 fCharges[i] = 0;\r
  74         }\r
  75         GenerateBBWindows();\r
  76         GenerateBGWindows();\r
  77         for (int i=0; i<AliVZEROTriggerData::kNCIUBoards; i++) {\r
  78                 fBBLatch[i] = new AliVZEROLogicalSignal(fTriggerData->GetLatchWin1(i),0); \r
  79                 fBGLatch[i] = new AliVZEROLogicalSignal(fTriggerData->GetLatchWin2(i),0); \r
  80                 fBBReset[i] = new AliVZEROLogicalSignal(fTriggerData->GetResetWin1(i),0);\r
  81                 fBGReset[i] = new AliVZEROLogicalSignal(fTriggerData->GetResetWin2(i),0);               \r
  82         }\r
  83 }\r
  84 \r
  85 //_____________________________________________________________________________\r
  86 AliVZEROTriggerSimulator::~AliVZEROTriggerSimulator(){\r
  87 // Destructor\r
  88   for (Int_t i=0; i<AliVZEROTriggerData::kNCIUBoards; i++) {\r
  89     delete fBBGate[i];\r
  90     delete fBGGate[i];\r
  91     delete fBBLatch[i];\r
  92     delete fBBReset[i];\r
  93     delete fBGLatch[i];\r
  94     delete fBGReset[i];\r
  95   }\r
  96 }\r
  97 \r
  98 //_____________________________________________________________________________\r
  99 void AliVZEROTriggerSimulator::GenerateBBWindows() \r
 100 {\r
 101   // Generates the BB observation window\r
 102   // In case gates are open the windows are equal to 25ns\r
 103   if (AreGatesOpen()) {\r
 104         for (int i=0; i<AliVZEROTriggerData::kNCIUBoards; i++) {\r
 105                 fBBGate[i] = new AliVZEROLogicalSignal();\r
 106                 fBBGate[i]->SetStartTime(0.);\r
 107                 fBBGate[i]->SetStopTime(25.0);\r
 108         }    \r
 109   }\r
 110   else {\r
 111         for (int i=0; i<AliVZEROTriggerData::kNCIUBoards; i++) {\r
 112                 AliVZEROLogicalSignal clk1BB(fTriggerData->GetClk1Win1(i),fTriggerData->GetDelayClk1Win1(i));\r
 113                 AliVZEROLogicalSignal clk2BB(fTriggerData->GetClk2Win1(i),fTriggerData->GetDelayClk2Win1(i));\r
 114                 fBBGate[i] = new AliVZEROLogicalSignal(clk1BB & clk2BB);\r
 115         }\r
 116   }\r
 117 }\r
 118 //_____________________________________________________________________________\r
 119 void AliVZEROTriggerSimulator::GenerateBGWindows() \r
 120 {\r
 121   // Generates the BG observation window\r
 122   // In case gates are open the windows are equal to 25ns\r
 123   if (AreGatesOpen()) {\r
 124         for (int i=0; i<AliVZEROTriggerData::kNCIUBoards; i++) {\r
 125                 fBGGate[i] = new AliVZEROLogicalSignal();\r
 126                 fBGGate[i]->SetStartTime(0.);\r
 127                 fBGGate[i]->SetStopTime(25.0);\r
 128         }    \r
 129   }\r
 130   else {\r
 131         for (int i=0; i<AliVZEROTriggerData::kNCIUBoards; i++) {\r
 132                 AliVZEROLogicalSignal clk1BG(fTriggerData->GetClk1Win2(i),fTriggerData->GetDelayClk1Win2(i));\r
 133                 AliVZEROLogicalSignal clk2BG(fTriggerData->GetClk2Win2(i),fTriggerData->GetDelayClk2Win2(i));\r
 134                 fBGGate[i] = new AliVZEROLogicalSignal(clk1BG & clk2BG);\r
 135                 // In VZERO-A we have a shift by -25ns which is controlled by\r
 136                 // 'Delay Win2' = 7 instead of default 6.\r
 137                 // The flag is not stored in OCDB so we have manually shift the\r
 138                 // trigger windows\r
 139                 if (i < 4) {\r
 140                   fBGGate[i]->SetStartTime(fBGGate[i]->GetStartTime()-25.0);\r
 141                   fBGGate[i]->SetStopTime(fBGGate[i]->GetStopTime()-25.0);\r
 142                 }\r
 143         }\r
 144   }\r
 145 }\r
 146 \r
 147 //_____________________________________________________________________________\r
 148 AliVZEROTriggerData * AliVZEROTriggerSimulator::LoadTriggerData() const \r
 149 {\r
 150         // Gets Trigger object for VZERO set\r
 151         AliDebug(1,"Loading Trigger parameters");\r
 152         AliCDBManager *man = AliCDBManager::Instance();\r
 153         \r
 154         \r
 155         AliCDBEntry *entry=0;\r
 156         \r
 157         entry = man->Get("VZERO/Trigger/Data");\r
 158         if(!entry){\r
 159                 AliFatal("Load of trigger calibration data from default storage failed!");\r
 160                 return NULL;\r
 161         }\r
 162         \r
 163         // Retrieval of data in directory VZERO/Calib/Trigger:\r
 164         \r
 165         AliVZEROTriggerData *triggerData = NULL;\r
 166         \r
 167         if (entry) triggerData = (AliVZEROTriggerData*) entry->GetObject();\r
 168         if (!triggerData)  AliError("No Trigger data from database !");\r
 169         \r
 170         return triggerData;\r
 171 }\r
 172 \r
 173 \r
 174 //_____________________________________________________________________________\r
 175 void AliVZEROTriggerSimulator::LoadClockOffset()\r
 176 {\r
 177   // This method is used in order to\r
 178   // retrieve the TDC clock offset including\r
 179   // roll-over, trig count and CTP L0->L1 delay\r
 180 \r
 181   AliCDBEntry *entry0 = AliCDBManager::Instance()->Get("VZERO/Calib/Data");\r
 182   if (!entry0) {\r
 183     AliFatal("V0 Calib object is not found in OCDB !");\r
 184     return;\r
 185   }\r
 186   AliVZEROCalibData *calibdata = (AliVZEROCalibData*) entry0->GetObject();\r
 187 \r
 188   AliCDBEntry *entry = AliCDBManager::Instance()->Get("GRP/CTP/CTPtiming");\r
 189   if (!entry) {\r
 190     AliFatal("CTP timing parameters are not found in OCDB !");\r
 191     return;\r
 192   }\r
 193   AliCTPTimeParams *ctpParams = (AliCTPTimeParams*)entry->GetObject();\r
 194   Float_t l1Delay = (Float_t)ctpParams->GetDelayL1L0()*25.0;\r
 195 \r
 196   AliCDBEntry *entry1 = AliCDBManager::Instance()->Get("GRP/CTP/TimeAlign");\r
 197   if (!entry1) {\r
 198     AliFatal("CTP time-alignment is not found in OCDB !");\r
 199     return;\r
 200   }\r
 201   AliCTPTimeParams *ctpTimeAlign = (AliCTPTimeParams*)entry1->GetObject();\r
 202   l1Delay += ((Float_t)ctpTimeAlign->GetDelayL1L0()*25.0);\r
 203 \r
 204   for(Int_t board = 0; board < AliVZEROTriggerData::kNCIUBoards; ++board) {\r
 205     fClockOffset[board] = (((Float_t)calibdata->GetRollOver(board)-\r
 206                             (Float_t)calibdata->GetTriggerCountOffset(board))*25.0-\r
 207                            l1Delay+\r
 208                            kV0Offset);\r
 209     AliDebug(1,Form("Board %d Offset %f",board,fClockOffset[board]));\r
 210   }\r
 211 }\r
 212 \r
 213 //_____________________________________________________________________________\r
 214 void AliVZEROTriggerSimulator::Run() {\r
 215         //AliInfo("Generating VZERO Triggers");\r
 216         \r
 217         // Loop over VZERO entries\r
 218         Int_t nEntries = (Int_t)fDigitsTree->GetEntries();\r
 219         for (Int_t ievt=0; ievt<nEntries; ievt++) {\r
 220                 fDigitsTree->GetEvent(ievt);\r
 221                 \r
 222                 Int_t nDigits = fDigits->GetEntriesFast();\r
 223                 \r
 224                 for (Int_t iDigit=0; iDigit<nDigits; iDigit++) {\r
 225                         AliVZEROdigit* digit = (AliVZEROdigit*)fDigits->At(iDigit);\r
 226                         \r
 227                         Int_t integrator = digit->Integrator();\r
 228                         Int_t pmNumber   = digit->PMNumber();\r
 229                         Int_t board   = AliVZEROCalibData::GetBoardNumber(pmNumber);\r
 230                         Int_t channel = AliVZEROCalibData::GetFEEChannelNumber(pmNumber);\r
 231                         if (board < 0 || channel < 0) continue;\r
 232                         \r
 233                         if(fTriggerData->GetEnableCharge(board,channel)) {\r
 234                                 fCharges[pmNumber] = digit->ChargeADC(AliVZEROdigit::kNClocks/2);\r
 235                                 if(fTriggerData->GetPedestalSubtraction(board)) {\r
 236                                         if(fCharges[pmNumber]>=(Float_t) fTriggerData->GetPedestalCut(integrator,board,channel)){ \r
 237                                                 fCharges[pmNumber] -= (Float_t) fTriggerData->GetPedestal(integrator,board,channel);\r
 238                                         } else {\r
 239                                                 fCharges[pmNumber] = 0.;\r
 240                                         }\r
 241                                 }\r
 242                         } else {\r
 243                                 fCharges[pmNumber] = 0.;\r
 244                         }\r
 245                         \r
 246                         Float_t time = digit->Time();\r
 247                         time -= fClockOffset[board];\r
 248 \r
 249                         AliDebug(10,Form(" Digit: %f %d %d %d %d %d %d %d %d",digit->Time(),\r
 250                                          digit->ChargeADC(8),digit->ChargeADC(9),digit->ChargeADC(10),\r
 251                                          digit->ChargeADC(11),digit->ChargeADC(12),digit->ChargeADC(13),\r
 252                                          digit->ChargeADC(14),digit->ChargeADC(15)));\r
 253                         AliDebug(10,Form(" PM nb : %d ; TDC= %f(%f)  Enable Time %d charge %d inCoin %d charge %f",\r
 254                                          pmNumber,time,digit->Time(),\r
 255                                          fTriggerData->GetEnableTiming(board,channel),fTriggerData->GetEnableCharge(board,channel),\r
 256                                          fBBGate[board]->IsInCoincidence(time),fCharges[pmNumber]));\r
 257                         fBBFlags[pmNumber] = fTriggerData->GetEnableTiming(board,channel) && fBBGate[board]->IsInCoincidence(time);\r
 258                         fBGFlags[pmNumber] = fTriggerData->GetEnableTiming(board,channel) && fBGGate[board]->IsInCoincidence(time);\r
 259                         \r
 260                 } // end of loop over digits\r
 261         } // end of loop over events in digits tree\r
 262         \r
 263         Int_t nBBflagsV0A = 0;\r
 264         Int_t nBBflagsV0C = 0;\r
 265         Int_t nBGflagsV0A = 0;\r
 266         Int_t nBGflagsV0C = 0;\r
 267         Float_t chargeV0A   = 0.;\r
 268         Float_t chargeV0C   = 0.;\r
 269         Int_t aBBflagsV0A = 0;\r
 270         Int_t aBBflagsV0C = 0;\r
 271         Int_t aBGflagsV0A = 0;\r
 272         Int_t aBGflagsV0C = 0;\r
 273 \r
 274         for(int i=0;i<64;i++) {\r
 275                 if(i<32) {\r
 276                         nBBflagsV0C += fBBFlags[i]; \r
 277                         nBGflagsV0C += fBGFlags[i];\r
 278                         chargeV0C += fCharges[i];\r
 279                         if (fBBFlags[i]) aBBflagsV0C |= (1 << i);\r
 280                         if (fBGFlags[i]) aBGflagsV0C |= (1 << i);\r
 281                 } else {\r
 282                         nBBflagsV0A += fBBFlags[i]; \r
 283                         nBGflagsV0A += fBGFlags[i];\r
 284                         chargeV0A += fCharges[i];\r
 285                         if (fBBFlags[i]) aBBflagsV0A |= (1 << (i-32));\r
 286                         if (fBGFlags[i]) aBGflagsV0A |= (1 << (i-32));\r
 287                 }\r
 288                 //AliInfo(Form("Ch %d BB=%d BG=%d",i,fBBFlags[i],fBGFlags[i] )); \r
 289         }\r
 290 \r
 291         // Store the BB and BG flags in the digits tree (user info)\r
 292         fDigitsTree->GetUserInfo()->Add(new TParameter<int>("BBflagsV0A",aBBflagsV0A));\r
 293         fDigitsTree->GetUserInfo()->Add(new TParameter<int>("BBflagsV0C",aBBflagsV0C));\r
 294         fDigitsTree->GetUserInfo()->Add(new TParameter<int>("BGflagsV0A",aBGflagsV0A));\r
 295         fDigitsTree->GetUserInfo()->Add(new TParameter<int>("BGflagsV0C",aBGflagsV0C));\r
 296         \r
 297         // BBA\r
 298         if(nBBflagsV0A>=fTriggerData->GetBBAThreshold())  SetBBA();\r
 299         \r
 300         // BBC\r
 301         if(nBBflagsV0C>=fTriggerData->GetBBCThreshold())  SetBBC();\r
 302 \r
 303         // BBA_AND_BBC\r
 304         if(GetBBA() && GetBBC())  SetBBAandBBC();\r
 305         \r
 306         // BBA_OR_BBC\r
 307         if(GetBBA() || GetBBC()) SetBBAorBBC();\r
 308 \r
 309         // BGA\r
 310         if(nBGflagsV0A>=fTriggerData->GetBGAThreshold()) SetBGA();\r
 311 \r
 312         // BGC\r
 313         if(nBGflagsV0C>=fTriggerData->GetBGCThreshold()) SetBGC();\r
 314         \r
 315         // BGA_AND_BBC (Beam Gas from RB24 side)\r
 316         if(nBBflagsV0C>=fTriggerData->GetBBCForBGThreshold() && GetBGA()) SetBGAandBBC();\r
 317         \r
 318         // BGC_AND_BBA (Beam Gas from RB26 side)\r
 319         if(nBBflagsV0A>=fTriggerData->GetBBAForBGThreshold() && GetBGC()) SetBGCandBBA();\r
 320 \r
 321         // CTA1_AND_CTC1 (Centrality trigger 1)\r
 322         if(chargeV0A>=fTriggerData->GetCentralityV0AThrLow() && chargeV0C>=fTriggerData->GetCentralityV0CThrLow()) SetCTA1andCTC1();\r
 323 \r
 324         // CTA1_OR_CTC1 (Centrality trigger 1)\r
 325         if(chargeV0A>=fTriggerData->GetCentralityV0AThrLow() || chargeV0C>=fTriggerData->GetCentralityV0CThrLow()) SetCTA1orCTC1();\r
 326         \r
 327         // CTA2_AND_CTC2 (Centrality trigger 2)\r
 328         if(chargeV0A>=fTriggerData->GetCentralityV0AThrHigh() && chargeV0C>=fTriggerData->GetCentralityV0CThrHigh()) SetCTA2andCTC2();\r
 329         \r
 330         // CTA2_OR_CTC2 (Centrality trigger 2)\r
 331         if(chargeV0A>=fTriggerData->GetCentralityV0AThrHigh() || chargeV0C>=fTriggerData->GetCentralityV0CThrHigh()) SetCTA2orCTC2();\r
 332         \r
 333         // MTA_AND_MTC (Multiplicity Trigger)\r
 334         if((nBBflagsV0A<=fTriggerData->GetMultV0AThrHigh() && nBBflagsV0A>=fTriggerData->GetMultV0AThrLow())\r
 335            && (nBBflagsV0C<=fTriggerData->GetMultV0CThrHigh() && nBBflagsV0C>=fTriggerData->GetMultV0CThrLow()) ) \r
 336                 SetMTAandMTC();\r
 337         \r
 338         // MTA_OR_MTC (Multiplicity Trigger)\r
 339         if((nBBflagsV0A<=fTriggerData->GetMultV0AThrHigh() && nBBflagsV0A>=fTriggerData->GetMultV0AThrLow())\r
 340            || (nBBflagsV0C<=fTriggerData->GetMultV0CThrHigh() && nBBflagsV0C>=fTriggerData->GetMultV0CThrLow()) ) \r
 341                 SetMTAorMTC();\r
 342         \r
 343         // BGA_OR_BGC\r
 344         if(GetBGA() || GetBGC()) SetBGAorBGC();\r
 345         \r
 346         // (BGA and BBC) or (BGC and BBA) (Beam Gas from one of the two sides)\r
 347         if(GetBGAandBBC() || GetBGCandBBA()) SetBeamGas();\r
 348 \r
 349 //      AliInfo(Form("BB Flags : V0A = %d  V0C = %d ",nBBflagsV0A, nBBflagsV0C )); \r
 350 //      AliInfo(Form("BG Flags : V0A = %d  V0C = %d ",nBGflagsV0A, nBGflagsV0C )); \r
 351 //      AliInfo(Form("Charges  : V0A = %d  V0C = %d ",chargeV0A, chargeV0C )); \r
 352         \r
 353 }\r
 354 \r
 355 //_____________________________________________________________________________\r
 356 Bool_t AliVZEROTriggerSimulator::AreGatesOpen() const {\r
 357   // The method check if the gates are suppossed to be open\r
 358   // (corresponding to 'Test Window' flag in DCS).\r
 359   // Since the flag is not stored in OCDB, we just check if\r
 360   // all the clock delays are 0 or not.\r
 361   // This rules should be followed when setting up the detector\r
 362   // at the level of DCS\r
 363 \r
 364   for (int i=0; i<AliVZEROTriggerData::kNCIUBoards; i++) {\r
 365     if (fTriggerData->GetDelayClk1Win1(i)!=0 ||\r
 366         fTriggerData->GetDelayClk2Win1(i)!=0 ||\r
 367         fTriggerData->GetDelayClk1Win2(i)!=0 ||\r
 368         fTriggerData->GetDelayClk2Win2(i)!=0)\r
 369       return kFALSE;\r
 370   }\r
 371   return kTRUE;\r
 372 }\r
 373 \r
 374 //_____________________________________________________________________________\r
 375 void AliVZEROTriggerSimulator::Print(Option_t* /* opt */) const\r
 376 {\r
 377   // Prints the trigger windows as\r
 378   // initialized from the OCDB\r
 379   for (int i=0; i<AliVZEROTriggerData::kNCIUBoards; i++) {\r
 380     std::cout << "Board=" << i << "   BB (" << fBBGate[i]->GetStartTime() << " -> " << fBBGate[i]->GetStopTime() << ")   BG (" << fBGGate[i]->GetStartTime() << " -> " << fBGGate[i]->GetStopTime() << ")" << std::endl;\r
 381   }\r
 382   std::cout << std::endl;\r
 383 }\r
 384 \r
 385 \r