Detector Algorithm for pedestal runs.

[u/mrichter/AliRoot.git] / ZDC / AliZDCDigitizer.cxx

diff --git a/ZDC/AliZDCDigitizer.cxx b/ZDC/AliZDCDigitizer.cxx
index 3079c56d808fe5f29ea306ba7584531f34454833..6145813a9f9ee974315c373232797f62fa427965 100644 (file)
--- a/ZDC/AliZDCDigitizer.cxx
+++ b/ZDC/AliZDCDigitizer.cxx
@@ -63,7 +63,7 @@ AliZDCDigitizer::AliZDCDigitizer() :
   fTowCalibData(0),
   fSpectators2Track(kFALSE)
 {
-// Default constructor    
+  // Default constructor    
 
 }
 
@@ -80,7 +80,10 @@ AliZDCDigitizer::AliZDCDigitizer(AliRunDigitizer* manager):
 {
   // Get calibration data
   if(fIsCalibration!=0) printf("\n\t AliZDCDigitizer -> Creating calibration data (pedestals)\n");
-
+  for(Int_t i=0; i<6; i++){
+    for(Int_t j=0; j<5; j++)
+       fPMGain[i][j] = 0.;
+  }
 }
 
 //____________________________________________________________________________
@@ -147,17 +150,19 @@ Bool_t AliZDCDigitizer::Init()
     AliError("\t UNKNOWN beam type from GRP obj -> PMT gains not set in ZDC digitizer!!!\n");
     beamEnergy = 0.;
   }
-  
+
   if((beamType.CompareTo("P-P")) == 0){
     //PTM gains rescaled to beam energy for p-p
     if(beamEnergy != 0){
       for(Int_t j = 0; j < 5; j++){
-        fPMGain[0][j] = 661.444/beamEnergy+0.000740671;
-        fPMGain[1][j] = 864.350/beamEnergy+0.002344;
-        fPMGain[3][j] = 1.32312-0.000101515*beamEnergy;
-        fPMGain[4][j] = fPMGain[0][j];
-        fPMGain[5][j] = fPMGain[1][j] ;
+        fPMGain[0][j] = (661.444/beamEnergy+0.000740671)*10000000;
+        fPMGain[1][j] = (864.350/beamEnergy+0.002344)*10000000;
+        fPMGain[2][j] = (1.32312-0.000101515*beamEnergy)*10000000;
+        fPMGain[3][j] = fPMGain[0][j];
+        fPMGain[4][j] = fPMGain[1][j] ;
       }
+      AliInfo(Form("    PMT gains for p-p @ %1.0f+%1.0f: ZN(%1.0f), ZP(%1.0f), ZEM(%1.0f)\n",
+       beamEnergy, beamEnergy, fPMGain[0][0], fPMGain[1][0], fPMGain[2][0]));
     }
   }
   else if((beamType.CompareTo("A-A")) == 0){
@@ -171,9 +176,8 @@ Bool_t AliZDCDigitizer::Init()
       fPMGain[5][j] = 100000.;
     }
   }
-  
-  
-   // ADC Caen V965
+    
+  // ADC Caen V965
   fADCRes[0] = 0.0000008; // ADC Resolution high gain: 200 fC/adcCh
   fADCRes[1] = 0.0000064; // ADC Resolution low gain:  25  fC/adcCh
 
@@ -257,6 +261,7 @@ void AliZDCDigitizer::Exec(Option_t* /*option*/)
          fFracLostSignal = (sdigit.GetTrackTime()-30)*(sdigit.GetTrackTime()-30)/280.;
        }
       }
+      
       Float_t sdSignal = sdigit.GetLightPM();
       if(fIsSignalInADCGate == kFALSE){
         AliDebug(2,Form("\t Signal time %f -> fraction %f of ZDC signal for det.(%d, %d) out of ADC gate\n",
@@ -265,9 +270,10 @@ void AliZDCDigitizer::Exec(Option_t* /*option*/)
       }
       
       pm[(sdigit.GetSector(0))-1][sdigit.GetSector(1)] += sdigit.GetLightPM();
-      /*printf("\n\t Detector %d, Tower %d -> pm[%d][%d] = %.0f \n",
+      //Ch. debug
+      /*printf("\t Detector %d, Tower %d -> pm[%d][%d] = %.0f \n",
          sdigit.GetSector(0), sdigit.GetSector(1),sdigit.GetSector(0)-1,
-         sdigit.GetSector(1), pm[sdigit.GetSector(0)-1][sdigit.GetSector(1)]); // Chiara debugging!
+         sdigit.GetSector(1), pm[sdigit.GetSector(0)-1][sdigit.GetSector(1)]); 
       */
       
     }
@@ -343,12 +349,13 @@ void AliZDCDigitizer::Exec(Option_t* /*option*/)
            digi[res] = Phe2ADCch(sector[0], sector[1], pm[sector[0]-1][sector[1]], res) 
                    + Pedestal(sector[0], sector[1], res);
        }
-       /*printf("\t DIGIT added -> det %d quad %d - digi[0,1] = [%d, %d]\n",
-            sector[0], sector[1], digi[0], digi[1]); // Chiara debugging!
-       */
-       //
        new(pdigit) AliZDCDigit(sector, digi);
         treeD->Fill();
+
+       //Ch. debug
+       //printf("\t DIGIT added -> det %d quad %d - digi[0,1] = [%d, %d]\n",
+       //     sector[0], sector[1], digi[0], digi[1]); // Chiara debugging!
+       
     }
   } // Loop over detector
   // Adding in-time digits for 2 reference PTM signals (after signal ch.)
@@ -365,11 +372,12 @@ void AliZDCDigitizer::Exec(Option_t* /*option*/)
      for(Int_t res=0; res<2; res++){
        sigRef[res] += Pedestal(sectorRef[0], sectorRef[1], res);
      }
-     /*printf("\t RefDigit added -> det = %d, quad = %d - digi[0,1] = [%d, %d]\n",
-         sectorRef[0], sectorRef[1], sigRef[0], sigRef[1]); // Chiara debugging!
-     */
      new(pdigit) AliZDCDigit(sectorRef, sigRef);
      treeD->Fill();     
+     
+     //Ch. debug
+     //printf("\t RefDigit added -> det = %d, quad = %d - digi[0,1] = [%d, %d]\n",
+     //    sectorRef[0], sectorRef[1], sigRef[0], sigRef[1]); // Chiara debugging!     
   }
   //
   // --- Adding digits for out-of-time channels after signal digits
@@ -379,12 +387,12 @@ void AliZDCDigitizer::Exec(Option_t* /*option*/)
         for(Int_t res=0; res<2; res++){
            digioot[res] = Pedestal(sector[0], sector[1], res); // out-of-time ADCs
        }
-       /*printf("\t DIGIToot added -> det = %d, quad = %d - digi[0,1] = [%d, %d]\n",
-            sector[0], sector[1], digioot[0], digioot[1]); // Chiara debugging!
-       */
-       //
        new(pdigit) AliZDCDigit(sector, digioot);
         treeD->Fill();
+
+        //Ch. debug
+       //printf("\t DIGIToot added -> det = %d, quad = %d - digi[0,1] = [%d, %d]\n",
+       //     sector[0], sector[1], digioot[0], digioot[1]); // Chiara debugging!      
     }
   }
   // Adding out-of-time digits for 2 reference PTM signals (after out-of-time ch.)
@@ -394,11 +402,12 @@ void AliZDCDigitizer::Exec(Option_t* /*option*/)
      for(Int_t res=0; res<2; res++){
        sigRefoot[res] = Pedestal(sectorRef[0], sectorRef[1], res);
      }
-     /*printf("\t RefDigitoot added -> det = %d, quad = %d - digi[0,1] = [%d, %d]\n",
-         sectorRef[0], sectorRef[1], sigRefoot[0], sigRefoot[1]); // Chiara debugging!
-     */
      new(pdigit) AliZDCDigit(sectorRef, sigRefoot);
      treeD->Fill();
+     //Ch. debug
+     //printf("\t RefDigitoot added -> det = %d, quad = %d - digi[0,1] = [%d, %d]\n",
+     //    sectorRef[0], sectorRef[1], sigRefoot[0], sigRefoot[1]); // Chiara debugging!
+     
   }
   //printf("\t AliZDCDigitizer -> TreeD has %d entries\n",(Int_t) treeD->GetEntries());
 
@@ -518,7 +527,9 @@ Int_t AliZDCDigitizer::Phe2ADCch(Int_t Det, Int_t Quad, Float_t Light,
 {
   // Evaluation of the ADC channel corresponding to the light yield Light
   Int_t vADCch = (Int_t) (Light * fPMGain[Det-1][Quad] * fADCRes[Res]);
-  //printf("\t Phe2ADCch -> det %d quad %d - phe %.0f  ADC %d\n", Det,Quad,Light,vADCch);
+  // Ch. debug
+  //printf("\t Phe2ADCch -> det %d quad %d - PMGain[%d][%d] %1.0f phe %1.2f  ADC %d\n", 
+  //   Det,Quad,Det-1,Quad,fPMGain[Det-1][Quad],Light,vADCch);
 
   return vADCch;
 }