HMPID/AliHMPIDPreprocessor.cxx

   1 #include "AliHMPIDPreprocessor.h" //header no includes
   2 #include "AliHMPIDDigit.h"        //ProcPed()
   3 #include "AliHMPIDRawStream.h"    //ProcPed()
   4 #include <Riostream.h>            //ProcPed()
   5 #include <AliLog.h>               //all
   6 #include <AliCDBMetaData.h>       //ProcPed(), ProcDcs()
   7 #include <AliDCSValue.h>          //ProcDcs()
   8 #include <TObjString.h>           //ProcDcs(), ProcPed()
   9 #include <TTimeStamp.h>           //Initialize()
  10 #include <TF1.h>                  //Process()
  11 #include <TF2.h>                  //Process()
  12 #include <TString.h>
  13 #include <TGraph.h>               //Process()
  14 #include <TMatrix.h>              //ProcPed()
  15 #include <TList.h>                //ProcPed()
  16 #include <TSystem.h>              //ProcPed()
  17 //.
  18 // HMPID Preprocessor base class
  19 //.
  20 //.
  21 //.
  22 ClassImp(AliHMPIDPreprocessor)
  23
  24 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  25 void AliHMPIDPreprocessor::Initialize(Int_t run, UInt_t startTime,UInt_t endTime)
  26 {
  27 // Initialize the parameter coming from AliPreprocessor
  28 //  run -> run number
  29 // startTime -> starting time
  30 // endTime   -> ending time
  31   AliPreprocessor::Initialize(run, startTime, endTime);
  32
  33   AliInfo(Form("HMPID started for Run %d \n\tStartTime %s \n\t  EndTime %s", run,TTimeStamp(startTime).AsString(),TTimeStamp(endTime).AsString()));
  34
  35 }
  36 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  37 UInt_t AliHMPIDPreprocessor::Process(TMap* pMap)
  38 {
  39 // Process all information from DCS and DAQ
  40 // Arguments: pMap- map of DCS aliases
  41 // Returns: 0 on success or 1 on error (opposite to Store!)
  42
  43   TString runType = GetRunType();
  44   Log(Form(" AliHMPIDPreprocessor: RunType is %s",runType.Data()));
  45
  46 // start to check event type and procedures
  47
  48   Log("HMPID - Process in Preprocessor started");
  49   if(! pMap) {
  50     Log("HMPID - ERROR - Not map of DCS aliases for HMPID - ");             return kTRUE;   // error in the DCS mapped aliases
  51   }
  52   if (runType == "CALIBRATION"){
  53     if (!ProcPed()){
  54         Log("HMPID - ERROR - Pedestal processing failed!!");                return kTRUE;   // error in pedestal processing
  55     } else {
  56         Log("HMPID - Pedestal processing successful!!");                    return kFALSE;  // ok for pedestals
  57     }
  58   } else if ( runType=="STANDALONE" || runType=="PHYSICS"){
  59   if (!ProcDcs(pMap)){
  60         Log("HMPID - ERROR - DCS processing failed!!");                     return kTRUE;   // error in DCS processing
  61     } else {
  62         Log("HMPID - DCS processing successful!!");                         return kFALSE;  // ok for DCS
  63     }
  64   } else {
  65     Log("HMPID - Nothing to do with preprocessor for HMPID, bye!");         return kFALSE;  // ok - nothing done
  66   }
  67 }//Process()
  68 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
  69 Bool_t AliHMPIDPreprocessor::ProcDcs(TMap* pMap)
  70 {
  71 // Process: 1 (old). inlet and outlet C6F14 temperature, stores TObjArray of 21 TF1, where TF1 is Nmean=f(t), one per radiator
  72 // Process: 1. inlet and outlet C6F14 temperature, stores TObjArray of 42 TF1, where TF1 are Tin and Tout per radiator
  73 //             + one function for the mean energy photon (in total 43).
  74 //          2. CH4 pressure and HV                 stores TObjArray of 7 TF1 where TF1 is thr=f(t), one per chamber
  75 // Arguments: pDcsMap - map of structure "alias name" - TObjArray of AliDCSValue
  76 // Assume that: HV is the same during the run for a given chamber, different chambers might have different HV
  77 //              P=f(t), different for different chambers
  78 // Returns: kTRUE on success
  79
  80   Bool_t stDcsStore=kFALSE;
  81
  82 // Qthr=f(HV,P) [V,mBar]  logA0=k*HV+b is taken from p. 64 TDR plot 2.59 for PC32
  83 //                           A0=f(P) is taken from DiMauro mail
  84 // Qthr is estimated as 3*A0
  85
  86   TF2 thr("RthrCH4"  ,"3*10^(3.01e-3*x-4.72)+170745848*exp(-y*0.0162012)"             ,2000,3000,900,1200);
  87
  88   TObjArray arNmean(43);       arNmean.SetOwner(kTRUE);     //42 Tin and Tout one per radiator + 1 for ePhotMean
  89   TObjArray arQthre(42);       arQthre.SetOwner(kTRUE);     //42 Qthre=f(time) one per sector
  90
  91   AliDCSValue *pVal; Int_t cnt=0;
  92
  93   Double_t xP,yP;
  94
  95   TF1 **pTin  = new TF1*[21];
  96   TF1 **pTout = new TF1*[21];
  97
  98 // evaluate Environment Pressure
  99
 100   TObjArray *pPenv=(TObjArray*)pMap->GetValue("HMP_DET/HMP_ENV/HMP_ENV_PENV.actual.value");
 101   if(!pPenv) {
 102     AliWarning(" No Data Points from HMP_ENV_PENV.actual.value!");
 103     return kFALSE;
 104   } else {
 105     Log(Form(" Environment Pressure data              ---> %3i entries",pPenv->GetEntries()));
 106     if(pPenv->GetEntries()) {
 107       TIter nextPenv(pPenv);
 108       TGraph *pGrPenv=new TGraph; cnt=0;
 109       while((pVal=(AliDCSValue*)nextPenv())) pGrPenv->SetPoint(cnt++,pVal->GetTimeStamp(),pVal->GetFloat());        //P env
 110       if( cnt==1) {
 111         pGrPenv->GetPoint(0,xP,yP);
 112         new TF1("Penv",Form("%f",yP),fStartTime,fEndTime);
 113       } else {
 114         pGrPenv->Fit(new TF1("Penv","1000+x*[0]",fStartTime,fEndTime),"Q");
 115       }
 116       delete pGrPenv;
 117     } else {AliWarning(" No Data Points from HMP_ENV_PENV.actual.value!");return kFALSE;}
 118   }
 119 // evaluate Pressure
 120
 121   for(Int_t iCh=0;iCh<7;iCh++){
 122     TObjArray *pP =(TObjArray*)pMap->GetValue(Form("HMP_DET/HMP_MP%i/HMP_MP%i_GAS/HMP_MP%i_GAS_PMWPC.actual.value",iCh,iCh,iCh));
 123     if(!pP) {
 124       AliWarning(Form(" No Data Points from HMP_MP%1i_GAS_PMWPC.actual.value!",iCh));
 125       return kFALSE;
 126     } else {
 127         Log(Form(" Pressure for module %i data             ---> %3i entries",iCh,pP->GetEntries()));
 128       if(pP->GetEntries()) {
 129         TIter nextP(pP);
 130         TGraph *pGrP=new TGraph; cnt=0;
 131         while((pVal=(AliDCSValue*)nextP())) pGrP->SetPoint(cnt++,pVal->GetTimeStamp(),pVal->GetFloat());            //P
 132         if( cnt==1) {
 133           pGrP->GetPoint(0,xP,yP);
 134           new TF1(Form("P%i",iCh),Form("%f",yP),fStartTime,fEndTime);
 135         } else {
 136           pGrP->Fit(new TF1(Form("P%i",iCh),"[0] + x*[1]",fStartTime,fEndTime),"Q");
 137         }
 138         delete pGrP;
 139       } else {AliWarning(" No Data Points from HMP_MP0-6_GAS_PMWPC.actual.value!");return kFALSE;}
 140     }
 141
 142 // evaluate High Voltage
 143
 144    for(Int_t iSec=0;iSec<6;iSec++){
 145       TObjArray *pHV=(TObjArray*)pMap->GetValue(Form("HMP_DET/HMP_MP%i/HMP_MP%i_PW/HMP_MP%i_SEC%i/HMP_MP%i_SEC%i_HV.actual.vMon",iCh,iCh,iCh,iSec,iCh,iSec));
 146       if(!pHV) {
 147         AliWarning(Form(" No Data Points from HMP_MP%1i_SEC%1i_HV.actual.vMon!",iCh,iSec));
 148         return kFALSE;
 149       } else {
 150         Log(Form(" HV for module %i and secto %i data       ---> %3i entries",iCh,iSec,pHV->GetEntries()));
 151         if(pHV->GetEntries()) {
 152           TIter nextHV(pHV);
 153           TGraph *pGrHV=new TGraph; cnt=0;
 154           while((pVal=(AliDCSValue*)nextHV())) pGrHV->SetPoint(cnt++,pVal->GetTimeStamp(),pVal->GetFloat());            //HV
 155           if( cnt==1) {
 156             pGrHV->GetPoint(0,xP,yP);
 157             new TF1(Form("HV%i_%i",iCh,iSec),Form("%f",yP),fStartTime,fEndTime);
 158           } else {
 159             pGrHV->Fit(new TF1(Form("HV%i_%i",iCh,iSec),"[0]+x*[1]",fStartTime,fEndTime),"Q");
 160           }
 161           delete pGrHV;
 162         } else {AliWarning(" No Data Points from HMP_MP0-6_SEC0-5_HV.actual.vMon!");return kFALSE;}
 163       }
 164 // evaluate Qthre
 165
 166       arQthre.AddAt(new TF1(Form("HMP_QthreC%iS%i",iCh,iSec),
 167           Form("3*10^(3.01e-3*HV%i_%i - 4.72)+170745848*exp(-(P%i+Penv)*0.0162012)",iCh,iSec,iCh),fStartTime,fEndTime),6*iCh+iSec);
 168
 169      //arQthre.AddAt(new TF1(Form("HMP_QthreC%iS%i",iCh,iSec),"100",fStartTime,fEndTime),6*iCh+iSec);
 170     }
 171 // evaluate Temperatures: in and out of the radiators
 172     // T in
 173     for(Int_t iRad=0;iRad<3;iRad++){
 174
 175       pTin[3*iCh+iRad]  = new TF1(Form("Tin%i%i" ,iCh,iRad),"[0]+[1]*x",fStartTime,fEndTime);
 176       pTout[3*iCh+iRad] = new TF1(Form("Tout%i%i",iCh,iRad),"[0]+[1]*x",fStartTime,fEndTime);
 177
 178       //pTin[3*iCh+iRad]  = new TF1(Form("Tin%i%i" ,iCh,iRad),"21",fStartTime,fEndTime);
 179       //pTout[3*iCh+iRad] = new TF1(Form("Tout%i%i",iCh,iRad),"22",fStartTime,fEndTime);
 180
 181     TObjArray *pT1=(TObjArray*)pMap->GetValue(Form("HMP_DET/HMP_MP%i/HMP_MP%i_LIQ_LOOP.actual.sensors.Rad%iIn_Temp",iCh,iCh,iRad));
 182       if(!pT1) {
 183         AliWarning(Form(" No Data Points from HMP_MP%1i_LIQ_LOOP.actual.sensors.Rad%1iIn_Temp!",iCh,iRad));
 184         return kFALSE;
 185       } else {
 186         Log(Form(" Temperatures for module %i inside data  ---> %3i entries",iCh,pT1->GetEntries()));
 187         if(pT1->GetEntries()) {
 188           TIter nextT1(pT1);//Tin
 189           TGraph *pGrT1=new TGraph; cnt=0;  while((pVal=(AliDCSValue*)nextT1())) pGrT1->SetPoint(cnt++,pVal->GetTimeStamp(),pVal->GetFloat()); //T inlet
 190           if(cnt==1) {
 191             pGrT1->GetPoint(0,xP,yP);
 192             pTin[3*iCh+iRad]->SetParameter(0,yP);
 193             pTin[3*iCh+iRad]->SetParameter(1,0);
 194           } else {
 195             pGrT1->Fit(pTin[3*iCh+iRad],"Q");
 196           }
 197           delete pGrT1;
 198         } else {AliWarning(" No Data Points from HMP_MP0-6_LIQ_LOOP.actual.sensors.Rad0-2In_Temp!");return kFALSE;}
 199       }
 200     // T out
 201       TObjArray *pT2=(TObjArray*)pMap->GetValue(Form("HMP_DET/HMP_MP%i/HMP_MP%i_LIQ_LOOP.actual.sensors.Rad%iOut_Temp",iCh,iCh,iRad));
 202       if(!pT2) {
 203         AliWarning(Form(" No Data Points from HMP_MP%1i_LIQ_LOOP.actual.sensors.Rad%1iOut_Temp!",iCh,iRad));
 204         return kFALSE;
 205       } else {
 206         Log(Form(" Temperatures for module %i outside data ---> %3i entries",iCh,pT2->GetEntries()));
 207         if(pT2->GetEntries()) {
 208           TIter nextT2(pT2);//Tout
 209           TGraph *pGrT2=new TGraph; cnt=0;  while((pVal=(AliDCSValue*)nextT2())) pGrT2->SetPoint(cnt++,pVal->GetTimeStamp(),pVal->GetFloat()); //T outlet
 210           if(cnt==1) {
 211             pGrT2->GetPoint(0,xP,yP);
 212             pTout[3*iCh+iRad]->SetParameter(0,yP);
 213             pTout[3*iCh+iRad]->SetParameter(1,0);
 214           } else {
 215             pGrT2->Fit(pTout[3*iCh+iRad],"Q");
 216           }
 217           delete pGrT2;
 218         } else {AliWarning(" No Data Points from HMP_MP0-6_LIQ_LOOP.actual.sensors.Rad0-2Out_Temp!");return kFALSE;}
 219       }
 220
 221 // evaluate Mean Refractive Index
 222
 223       arNmean.AddAt(pTin[3*iCh+iRad] ,6*iCh+2*iRad  ); //Tin =f(t)
 224       arNmean.AddAt(pTout[3*iCh+iRad],6*iCh+2*iRad+1); //Tout=f(t)
 225
 226     }//radiators loop
 227   }//chambers loop
 228
 229   Double_t eMean = ProcTrans(pMap);
 230   arNmean.AddAt(new TF1("HMP_PhotEmean",Form("%f",eMean),fStartTime,fEndTime),42); //Photon energy mean
 231
 232   AliCDBMetaData metaData;
 233   metaData.SetBeamPeriod(0);
 234   metaData.SetResponsible("AliHMPIDPreprocessor");
 235   metaData.SetComment("HMPID preprocessor fills TObjArrays.");
 236
 237   stDcsStore =   Store("Calib","Qthre",&arQthre,&metaData,0,kTRUE) &&    // from DCS  0,kTRUE generates the file from Run 0 to Run 99999999
 238                  Store("Calib","Nmean",&arNmean,&metaData,0,kTRUE);      // from DCS
 239 //  stDcsStore =   Store("Calib","Qthre",&arQthre,&metaData) &&    // from DCS
 240 //                 Store("Calib","Nmean",&arNmean,&metaData);      // from DCS
 241   if(!stDcsStore) {
 242     Log("HMPID - failure to store DCS data results in OCDB");
 243   }
 244
 245 //  arNmean.Delete();
 246 //  arQthre.Delete();
 247
 248 //  for(Int_t i=0;i<21;i++) delete pTin[i]; delete []pTin;
 249 //  for(Int_t i=0;i<21;i++) delete pTout[i]; delete []pTout;
 250
 251   return stDcsStore;
 252 }//Process()
 253 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 254 Bool_t AliHMPIDPreprocessor::ProcPed()
 255 {
 256 // Process pedestal files and create 7 M(padx,pady)=sigma, one for each chamber
 257 // Arguments:
 258 // Returns: kTRUE on success
 259
 260   Bool_t stPedStore=kFALSE;
 261   AliHMPIDDigit dig;
 262   AliHMPIDRawStream rs;
 263   Int_t nSigCut,r,d,a,hard;  Float_t mean,sigma;
 264   Int_t  runNumber,ldcId,timeStamp,nEv,nDdlEv,nBadEv;  Char_t tName[10];
 265   Float_t nBadEvPer;
 266
 267   TObjArray aDaqSig(7); aDaqSig.SetOwner(kTRUE); for(Int_t i=0;i<7;i++) aDaqSig.AddAt(new TMatrix(160,144),i); //TObjArray of 7 TMatrixF, m(padx,pady)=sigma
 268
 269   for(Int_t iddl=0;iddl<AliHMPIDRawStream::kNDDL;iddl++)            //retrieve the files from LDCs independently the DDL<->LDC connection
 270   {
 271     TList *pLdc=GetFileSources(kDAQ,Form("HmpidPedDdl%02i.txt",iddl)); //get list of LDC names containing id "pedestals"
 272     if(!pLdc) {Log(Form("ERROR: Retrieval of sources for pedestals: HmpidPedDdl%02i.txt failed!",iddl));continue;}
 273
 274     Log(Form("HMPID - Pedestal files to be read --> %i LDCs for HMPID",pLdc->GetEntries()));
 275     for(Int_t i=0;i<pLdc->GetEntries();i++) {//lists of LDCs -- but in general we have 1 LDC for 1 ped file
 276     TString fileName = GetFile(kDAQ,Form("HmpidPedDdl%02i.txt",iddl),((TObjString*)pLdc->At(i))->GetName());
 277     if(fileName.Length()==0) {Log(Form("ERROR retrieving pedestal file: HmpidPedDdl%02i.txt!",iddl));continue;}
 278
 279     //reading pedestal file
 280     ifstream infile(fileName.Data());
 281
 282     if(!infile.is_open()) {Log("No pedestal file found for HMPID,bye!");continue;}
 283     TMatrix *pM=(TMatrixF*)aDaqSig.At(iddl/2);
 284
 285     infile>>tName>>runNumber;Printf("Xcheck: reading run %i",runNumber);
 286     infile>>tName>>ldcId;
 287     infile>>tName>>timeStamp;
 288     infile>>tName>>nEv;
 289     infile>>tName>>nDdlEv;
 290     infile>>tName>>nBadEv;
 291     infile>>tName>>nBadEvPer;
 292     infile>>tName>>nSigCut; pM->SetUniqueID(nSigCut); //n. of pedestal distribution sigmas used to create zero suppresion table
 293     while(!infile.eof()){
 294       infile>>dec>>r>>d>>a>>mean>>sigma>>hex>>hard;
 295       if(rs.GetPad(iddl,r,d,a)>=0){                     //the GetPad returns meaningful abs pad number
 296       dig.SetPad(rs.GetPad(iddl,r,d,a));
 297       dig.SetQ((Int_t)mean);
 298       (*pM)(dig.PadChX(),dig.PadChY()) = sigma;
 299       }
 300     }
 301     infile.close();
 302     Log(Form("Pedestal file for DDL %i read successfully",iddl));
 303
 304   }//LDCs reading entries
 305
 306  }//DDL
 307
 308   AliCDBMetaData metaData;
 309   metaData.SetBeamPeriod(0);
 310   metaData.SetResponsible("AliHMPIDPreprocessor");
 311   metaData.SetComment("HMPID processor fills TObjArrays.");
 312   stPedStore = Store("Calib","DaqSig",&aDaqSig,&metaData,0,kTRUE);
 313 //  stPedStore = Store("Calib","DaqSig",&aDaqSig,&metaData);
 314   if(!stPedStore) {
 315     Log("HMPID - failure to store PEDESTAL data results in OCDB");
 316   }
 317   return stPedStore;
 318
 319 }//ProcPed()
 320 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 321 Double_t AliHMPIDPreprocessor::ProcTrans(TMap* pMap)
 322 {
 323   //  Process transparency monitoring data and calculates Emean
 324
 325   Double_t sEnergProb=0, sProb=0;
 326
 327   Double_t tRefCR5 = 19. ;                                      // mean temperature of CR5 where the system is in place
 328
 329   Double_t eMean = 0;
 330
 331   AliDCSValue *pVal;
 332
 333   for(Int_t i=0; i<30; i++){
 334
 335     // evaluate wavelenght
 336     TObjArray *pWaveLenght = (TObjArray*)pMap->GetValue(Form("HMP_DET/HMP_INFR/HMP_INFR_TRANPLANT/HMP_INFR_TRANPLANT_MEASURE.mesure%i.waveLenght",i));
 337     if(!pWaveLenght){
 338         AliWarning(Form("No Data Point values for HMP_DET/HMP_INFR/HMP_INFR_TRANPLANT/HMP_INFR_TRANPLANT_MEASURE.mesure%i.waveLenght  -----> Default E mean used!!!!!",i));
 339         return DefaultEMean(); // to be checked
 340       }
 341
 342     pVal=(AliDCSValue*)pWaveLenght->At(0);
 343     Double_t lambda = pVal->GetFloat();
 344
 345     if(lambda<150. || lambda>230.){
 346         AliWarning(Form("Wrong value for HMP_DET/HMP_INFR/HMP_INFR_TRANPLANT/HMP_INFR_TRANPLANT_MEASURE.mesure%i.waveLenght  -----> Default E mean used!!!!!",i));
 347         return DefaultEMean(); // to be checked
 348       }
 349
 350     Double_t photEn = 1239.842609/lambda;     // 1239.842609 from nm to eV
 351
 352     if(photEn<AliHMPIDParam::EPhotMin() || photEn>AliHMPIDParam::EPhotMax()) continue;
 353
 354     // evaluate phototube current for argon reference
 355     TObjArray *pArgonRef  = (TObjArray*)pMap->GetValue(Form("HMP_DET/HMP_INFR/HMP_INFR_TRANPLANT/HMP_INFR_TRANPLANT_MEASURE.mesure%i.argonReference",i));
 356     if(!pArgonRef){
 357         AliWarning(Form("No Data Point values for HMP_DET/HMP_INFR/HMP_INFR_TRANPLANT/HMP_INFR_TRANPLANT_MEASURE.mesure%i.argonReference  -----> Default E mean used!!!!!",i));
 358         return DefaultEMean(); // to be checked
 359       }
 360
 361     pVal=(AliDCSValue*)pArgonRef->At(0);
 362     Double_t aRefArgon = pVal->GetFloat();
 363
 364     // evaluate phototube current for argon cell
 365     TObjArray *pArgonCell = (TObjArray*)pMap->GetValue(Form("HMP_DET/HMP_INFR/HMP_INFR_TRANPLANT/HMP_INFR_TRANPLANT_MEASURE.mesure%i.argonCell",i));
 366     if(!pArgonCell){
 367         AliWarning(Form("No Data Point values for HMP_DET/HMP_INFR/HMP_INFR_TRANPLANT/HMP_INFR_TRANPLANT_MEASURE.mesure%i.argonCell  -----> Default E mean used!!!!!",i));
 368         return DefaultEMean(); // to be checked
 369       }
 370
 371     pVal=(AliDCSValue*)pArgonRef->At(0);
 372     Double_t aCellArgon = pVal->GetFloat();
 373
 374     //evaluate phototube current for freon reference
 375     TObjArray *pFreonRef  = (TObjArray*)pMap->GetValue(Form("HMP_DET/HMP_INFR/HMP_INFR_TRANPLANT/HMP_INFR_TRANPLANT_MEASURE.mesure%i.c6f14Reference",i));
 376     if(!pFreonRef){
 377         AliWarning(Form("No Data Point values for HMP_DET/HMP_INFR/HMP_INFR_TRANPLANT/HMP_INFR_TRANPLANT_MEASURE.mesure%i.c6f14Reference  -----> Default E mean used!!!!!",i));
 378         return DefaultEMean(); // to be checked
 379       }
 380
 381     pVal=(AliDCSValue*)pFreonRef->At(0);
 382     Double_t aRefFreon = pVal->GetFloat();
 383
 384     //evaluate phototube current for freon cell
 385     TObjArray *pFreonCell = (TObjArray*)pMap->GetValue(Form("HMP_DET/HMP_INFR/HMP_INFR_TRANPLANT/HMP_INFR_TRANPLANT_MEASURE.mesure%i.c6f14Cell",i));
 386     if(!pFreonCell){
 387         AliWarning(Form("No Data Point values for HMP_DET/HMP_INFR/HMP_INFR_TRANPLANT/HMP_INFR_TRANPLANT_MEASURE.mesure%i.c6f14Cell  -----> Default E mean used!!!!!",i));
 388         return DefaultEMean(); // to be checked
 389       }
 390
 391     pVal=(AliDCSValue*)pFreonCell->At(0);
 392     Double_t aCellFreon = pVal->GetFloat();
 393
 394    //evaluate correction factor to calculate trasparency (Ref. NIMA 486 (2002) 590-609)
 395
 396     Double_t aN1 = AliHMPIDParam::NIdxRad(photEn,tRefCR5);
 397     Double_t aN2 = AliHMPIDParam::NMgF2Idx(photEn);
 398     Double_t aN3 = 1;                              // Argon Idx
 399
 400     Double_t aR1               = ((aN1 - aN2)*(aN1 - aN2))/((aN1 + aN2)*(aN1 + aN2));
 401     Double_t aR2               = ((aN2 - aN3)*(aN2 - aN3))/((aN2 + aN3)*(aN2 + aN3));
 402     Double_t aT1               = (1 - aR1);
 403     Double_t aT2               = (1 - aR2);
 404     Double_t aCorrFactor       = (aT1*aT1)/(aT2*aT2);
 405
 406     // evaluate 15 mm of thickness C6F14 Trans
 407     Double_t aTransRad;
 408
 409     if(aRefFreon*aRefArgon>0) {
 410       aTransRad  = TMath::Power((aCellFreon/aRefFreon)/(aCellArgon/aRefArgon)*aCorrFactor,1.5);
 411     } else {
 412       return DefaultEMean();
 413     }
 414
 415     // evaluate 0.5 mm of thickness SiO2 Trans
 416     Double_t aTransSiO2 = TMath::Exp(-0.5/AliHMPIDParam::LAbsWin(photEn));
 417
 418     // evaluate 80 cm of thickness Gap (low density CH4) transparency
 419     Double_t aTransGap  = TMath::Exp(-80./AliHMPIDParam::LAbsGap(photEn));
 420
 421     // evaluate CsI quantum efficiency
 422     Double_t aCsIQE            = AliHMPIDParam::QEffCSI(photEn);
 423
 424     // evaluate total convolution of all material optical properties
 425     Double_t aTotConvolution   = aTransRad*aTransSiO2*aTransGap*aCsIQE;
 426
 427     sEnergProb+=aTotConvolution*photEn;
 428
 429     sProb+=aTotConvolution;
 430 }
 431   if(sProb>0) {
 432     eMean = sEnergProb/sProb;
 433   } else {
 434     return DefaultEMean();
 435   }
 436   Log(Form(" Mean energy photon calculated ---> %f eV ",eMean));
 437
 438   if(eMean<AliHMPIDParam::EPhotMin() || eMean>AliHMPIDParam::EPhotMax()) return DefaultEMean();
 439
 440   return eMean;
 441 }
 442 //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 443 Double_t AliHMPIDPreprocessor::DefaultEMean()
 444 {
 445     Double_t eMean = 6.675;      //just set a refractive index for C6F14 at ephot=6.675 eV @ T=25 C
 446     AliWarning(Form("Mean energy for photons out of range [%f,%f] in Preprocessor. Default value Eph=%f eV taken.",AliHMPIDParam::EPhotMin(),
 447                                                                                                                    AliHMPIDParam::EPhotMax(),
 448                                                                                                                    eMean));
 449     return eMean;
 450 }