LCOV - code coverage report
Current view: top level - T0/T0base - AliT0Digitizer.cxx (source / functions) Hit Total Coverage
Test: coverage.info Lines: 183 206 88.8 %
Date: 2016-06-14 17:26:59 Functions: 8 10 80.0 %

          Line data    Source code
       1             : 
       2             : /**************************************************************************
       3             :  * Copyright(c) 1998-2000, ALICE Experiment at CERN, All rights reserved. *
       4             :  *                                                                        *
       5             :  * Author: The ALICE Off-line Project.                                    *
       6             :  * Contributors are mentioned in the code where appropriate.              *
       7             :  *                                                                        *
       8             :  * Permission to use, copy, modify and distribute this software and its   *
       9             :  * documentation strictly for non-commercial purposes is hereby granted   *
      10             :  * without fee, provided that the above copyright notice appears in all   *
      11             :  * copies and that both the copyright notice and this permission notice   *
      12             :  * appear in the supporting documentation. The authors make no claims     *
      13             :  * about the suitability of this software for any purpose. It is          *
      14             :  * provided "as is" without express or implied warranty.                  *
      15             :  **************************************************************************/
      16             : 
      17             : /* $Id$ */
      18             : 
      19             : /******************************************************************
      20             :  *    Produde digits from hits
      21             :  *       digits is TObject and includes
      22             :  *      We are writing array if C & A  TDC
      23             :  *      C & A  ADC (will need for slow simulation)
      24             :  *      TOF first particle C & A
      25             :  *      mean time and time difference (vertex position)
      26             :  *
      27             :  *      Alla.Maevskaya@cern.ch 
      28             :  ****************************************************************/
      29             : 
      30             : 
      31             : #include <TArrayI.h>
      32             : #include <TFile.h>
      33             : #include <TGraph.h>
      34             : #include <TH1F.h>
      35             : #include <TMath.h>
      36             : #include <TRandom.h>
      37             : #include <TTree.h> 
      38             : 
      39             : #include "AliLog.h"
      40             : #include "AliT0Digitizer.h"
      41             : #include "AliT0.h"
      42             : #include "AliT0hit.h"
      43             : #include "AliT0digit.h"
      44             : #include "AliDigitizationInput.h"
      45             : #include "AliRun.h"
      46             : #include <AliLoader.h>
      47             : #include <AliRunLoader.h>
      48             : #include <stdlib.h>
      49             : #include "AliT0Parameters.h"
      50             : #include "AliCDBManager.h"
      51             : #include "AliCDBEntry.h"
      52             : #include "AliGRPObject.h"
      53             : 
      54          20 : ClassImp(AliT0Digitizer)
      55             : 
      56             : //___________________________________________
      57           0 :   AliT0Digitizer::AliT0Digitizer()  :AliDigitizer(),
      58           0 :                                      fT0(0),
      59           0 :                                      fHits(0),
      60           0 :                                      fdigits(0),
      61           0 :                                      ftimeCFD(new TArrayI(24)), 
      62           0 :                                      ftimeLED (new TArrayI(24)), 
      63           0 :                                      fADC(new TArrayI(24)), 
      64           0 :                                      fADC0 (new TArrayI(24)),
      65           0 :                                      fSumMult(0),
      66           0 :                                      fAmpLED(0),
      67           0 :                                      fAmpQTC(0),
      68           0 :                                      fParam(0)
      69           0 : {
      70             : // Default ctor - don't use it
      71             :   ;
      72           0 : }
      73             : 
      74             : //___________________________________________
      75             : AliT0Digitizer::AliT0Digitizer(AliDigitizationInput* digInput) 
      76           1 :   :AliDigitizer(digInput),
      77           1 :    fT0(0),
      78           1 :    fHits(0),
      79           1 :    fdigits(0),
      80           3 :    ftimeCFD(new TArrayI(24)), 
      81           3 :    ftimeLED (new TArrayI(24)), 
      82           3 :    fADC(new TArrayI(24)), 
      83           3 :    fADC0 (new TArrayI(24)),
      84           1 :    fSumMult(0),
      85           1 :    fAmpLED(0),
      86           1 :    fAmpQTC(0),
      87           1 :    fParam(0)
      88           5 : {
      89             : // ctor which should be used
      90             : 
      91           5 :   AliDebug(1,"processed");
      92           4 :   AliCDBEntry* entry = AliCDBManager::Instance()->Get("GRP/GRP/Data");
      93           3 :   AliGRPObject* grpData = dynamic_cast<AliGRPObject*>(entry->GetObject());
      94           1 :   if (!grpData) {printf("Failed to get GRP data for run"); return;}
      95           1 :   TString LHCperiod = grpData->GetLHCPeriod();
      96           2 :   if(LHCperiod.Contains("LHC15")) fRun2=kTRUE;
      97             :   else 
      98           1 :     fRun2=kFALSE;
      99             : 
     100           2 :   fParam = AliT0Parameters::Instance();
     101           1 :   fParam->Init();
     102             : 
     103          50 :   for (Int_t i=0; i<24; i++){
     104          24 :     TGraph* gr = fParam ->GetAmpLED(i);
     105          24 :      if(gr) {
     106          24 :       Int_t np = gr->GetN();
     107          24 :       Double_t *x = gr->GetX();
     108          24 :       Double_t *y = gr->GetY();
     109             :       
     110          48 :       Double_t *x1 = new Double_t[np];
     111          48 :       Double_t *y1 = new Double_t[np];
     112         912 :       for (Int_t ii=0; ii<np; ii++) {
     113         432 :         y1[ii]=y[np-ii-1]; 
     114         432 :         x1[ii]=x[np-ii-1];
     115             :       }
     116          48 :       TGraph *grInverse = new TGraph(np,y1,x1);
     117          24 :       fAmpLED.AddAtAndExpand(grInverse,i);
     118          72 :       if (x1) delete [] x1;
     119          72 :       if (y1) delete [] y1;
     120          24 :     }
     121             :   }
     122          50 :   for (Int_t i=0; i<24; i++){
     123          24 :     TGraph* grq = fParam ->GetQTC(i);
     124          24 :     if(grq){
     125          24 :       Int_t npq = grq->GetN();
     126          24 :       Double_t *xq = grq->GetX();
     127          24 :       Double_t *yq = grq->GetY();
     128          48 :       Double_t *x1q = new Double_t[npq];
     129          48 :       Double_t *y1q = new Double_t[npq];
     130         864 :       for (Int_t ii=1; ii<npq; ii++) {
     131         408 :         y1q[ii]=yq[ii-1]; 
     132         408 :         x1q[ii]=xq[ii-1];
     133             :       }
     134          48 :       TGraph *grInverseQTC = new TGraph(npq,y1q,x1q);
     135          24 :       fAmpQTC.AddAtAndExpand(grInverseQTC,i);
     136             : 
     137          72 :       if (x1q)  delete [] x1q;
     138          72 :       if (y1q)  delete [] y1q;
     139             :       // fAmpQTC.Print();
     140          24 :     }
     141             :   }
     142           3 : }
     143             : 
     144             : 
     145             : //------------------------------------------------------------------------
     146             : AliT0Digitizer::~AliT0Digitizer()
     147           6 : {
     148             : // Destructor
     149             : 
     150           5 :   AliDebug(1,"T0");
     151             : 
     152           2 :   delete ftimeCFD;
     153           2 :   delete fADC;
     154           2 :   delete ftimeLED;
     155           2 :   delete  fADC0;
     156             :   //  delete fAmpLED;
     157           3 : }
     158             : 
     159             : //------------------------------------------------------------------------
     160             : Bool_t AliT0Digitizer::Init()
     161             : {
     162             : // Initialization
     163           4 :   AliDebug(1," Init");
     164           1 :  return kTRUE;
     165             : }
     166             :  
     167             : //---------------------------------------------------------------------
     168             : void AliT0Digitizer::Digitize(Option_t* /*option*/)
     169             : {
     170             : 
     171             :   /*
     172             :     Produde digits from hits
     173             :         digits is TObject and includes
     174             :         We are writing array if C & A  TDC
     175             :         C & A  ADC (will need for slow simulation)
     176             :         TOF first particle C & A
     177             :         mean time and time difference (vertex position)
     178             :         
     179             :   */
     180             : 
     181             :   //output loader 
     182           8 :   AliRunLoader *outRL = AliRunLoader::GetRunLoader(fDigInput->GetOutputFolderName());
     183           4 :   AliLoader * pOutStartLoader = outRL->GetLoader("T0Loader");
     184             : 
     185          12 :   AliDebug(1,"start...");
     186             :   //input loader
     187             :   //
     188             :   // From hits to digits
     189             :   //
     190             :   Int_t hit, nhits;
     191           4 :   Int_t countE[24];
     192             :   Int_t volume, pmt, trCFD, trLED; 
     193             :   Float_t sl=0, qt=0;
     194             :   Int_t  bestATDC=0;
     195             :   Int_t  bestCTDC=0;
     196             :   Float_t qtCh=0;
     197           4 :   Float_t time[24], besttime[24], timeGaus[24] ;
     198             :   //Q->T-> coefficients !!!! should be asked!!!
     199           4 :   Float_t timeDelayCFD[24];
     200             :   Int_t threshold =50; //photoelectrons
     201             :   Float_t zdetA, zdetC;
     202             :   Int_t sumMultCoeff = 100;
     203             :   Int_t refpoint=0;
     204             :    
     205           4 :   Int_t ph2Mip = fParam->GetPh2Mip();     
     206           4 :   Float_t channelWidth = fParam->GetChannelWidth() ;  
     207           4 :   Float_t delayVertex = fParam->GetTimeDelayTVD();
     208             :    
     209             : 
     210           4 :   zdetC = TMath::Abs(fParam->GetZPosition("T0/C/PMT1"));
     211           4 :   zdetA  = TMath::Abs(fParam->GetZPosition("T0/A/PMT15"));
     212             :   
     213             :   //  printf(" !!!!!Z det A = %f C = % f",zdetA,zdetC);
     214             :   AliT0hit  *startHit;
     215             :   TBranch *brHits=0;
     216             :   
     217           4 :   Int_t nFiles=fDigInput->GetNinputs();
     218          20 :   for (Int_t inputFile=0; inputFile<nFiles;  inputFile++) {
     219           4 :     if (inputFile < nFiles-1) {
     220           0 :       AliWarning(Form("ignoring input stream %d", inputFile));
     221           0 :       continue;
     222             :       
     223             :     }
     224             :     Float_t slew = 0;
     225             :     Float_t besttimeC=99999.;
     226             :     Float_t besttimeA=99999.;
     227             :     Int_t pmtBestC=99999;
     228             :     Int_t pmtBestA=99999;
     229             :     Int_t timeDiff=99999, meanTime=99999;
     230           4 :     Int_t sumMult =0;   fSumMult=0;
     231             :     bestATDC = 99999;  bestCTDC = 99999;
     232             :  
     233             : 
     234           4 :     ftimeCFD -> Reset();
     235           4 :     fADC -> Reset();
     236           4 :     fADC0 -> Reset();
     237           4 :     ftimeLED ->Reset();
     238         200 :     for (Int_t i0=0; i0<24; i0++)
     239             :       {
     240          96 :         time[i0]=besttime[i0]=timeGaus[i0]=999999; countE[i0]=0;
     241             :       }
     242           4 :     AliRunLoader * inRL = AliRunLoader::GetRunLoader(fDigInput->GetInputFolderName(inputFile));
     243           4 :     AliLoader * pInStartLoader = inRL->GetLoader("T0Loader");
     244           4 :     if (!inRL->GetAliRun()) inRL->LoadgAlice();
     245           4 :     fT0  = (AliT0*)inRL ->GetAliRun()->GetDetector("T0");
     246             : 
     247             :        //read Hits 
     248           4 :     pInStartLoader->LoadHits("READ");//probably it is necessary to load them before
     249           4 :     fHits = fT0->Hits ();
     250           4 :     TTree *th = pInStartLoader->TreeH();
     251           4 :     brHits = th->GetBranch("T0");
     252           4 :     if (brHits) {
     253           4 :       fT0->SetHitsAddressBranch(brHits);
     254             :     }else{
     255           0 :       AliWarning("Branch T0 hit not found for this event");
     256             :       // fT0->AddDigit(bestATDC,bestCTDC,meanTime,timeDiff,fSumMult, refpoint,
     257             :       //               ftimeCFD,fADC0,ftimeLED,fADC);
     258           0 :       continue;      
     259             :     } 
     260           4 :     Int_t ntracks    = (Int_t) th->GetEntries();
     261             :     
     262           4 :     if (ntracks<=0) return;
     263             :     // Start loop on tracks in the hits containers
     264         232 :     for (Int_t track=0; track<ntracks;track++) {
     265         112 :       brHits->GetEntry(track);
     266         112 :       nhits = fHits->GetEntriesFast();
     267        5712 :       for (hit=0;hit<nhits;hit++) 
     268             :         {
     269        2744 :           startHit   = (AliT0hit*) fHits->UncheckedAt(hit);
     270        2744 :           if (!startHit) {
     271           0 :             AliError("The unchecked hit doesn't exist");
     272           0 :             break;
     273             :           }
     274        2744 :           pmt=startHit->Pmt();
     275        2744 :           Int_t numpmt=pmt-1;
     276        2744 :           Double_t e=startHit->Etot();
     277        2744 :           volume = startHit->Volume();
     278             :           
     279        2744 :           if(e>0 ) {
     280        2744 :             countE[numpmt]++;
     281        2744 :             besttime[numpmt] = startHit->Time();
     282        2744 :             if(besttime[numpmt]<time[numpmt])
     283             :               {
     284          30 :                 time[numpmt]=besttime[numpmt];
     285          30 :               }
     286             :           } //photoelectron accept 
     287             :         } //hits loop
     288             :     } //track loop
     289             :     
     290             :     //spread time A&C by 25ps   && besttime
     291             :     Float_t c = 0.0299792; // cm/ps
     292             :     
     293           4 :     Float_t koef=(zdetA-zdetC)/c; //correction position difference by cable
     294         104 :     for (Int_t ipmt=0; ipmt<12; ipmt++){
     295          48 :       if(countE[ipmt] > threshold) {
     296           1 :         timeGaus[ipmt]=gRandom->Gaus(time[ipmt],25)+koef;
     297           1 :         if(timeGaus[ipmt]<besttimeC){
     298             :           besttimeC=timeGaus[ipmt]; //timeC
     299           1 :           pmtBestC=ipmt;}
     300             :       }
     301             :     }
     302         104 :     for ( Int_t ipmt=12; ipmt<24; ipmt++){
     303          48 :       if(countE[ipmt] > threshold) {
     304           5 :         timeGaus[ipmt]=gRandom->Gaus(time[ipmt],25); 
     305           5 :         if(timeGaus[ipmt]<besttimeA) {
     306             :           besttimeA=timeGaus[ipmt]; //timeA
     307           3 :           pmtBestA=ipmt;}
     308             :       } 
     309             :     }
     310             : 
     311           4 :     timeDelayCFD[0] = fParam->GetTimeDelayCFD(0);
     312             :  
     313         200 :     for (Int_t i=0; i<24; i++)
     314             :       {
     315          96 :         Float_t  al = countE[i]; 
     316         102 :         if (al>threshold && timeGaus[i]<50000 ) {
     317             :           //fill ADC
     318             :           // QTC procedure:
     319             :           // phe -> mV 0.3; 1MIP ->500phe -> ln (amp (mV)) = 5;
     320             :           // max 200ns, HIJING  mean 50000phe -> 15000mv -> ln = 15 (s zapasom)
     321             :           // channel 25ps
     322           6 :           qt= al/ph2Mip;  // 50mv/Mip amp in mV 
     323             :           // before will we have calibration for high multiplicity 
     324             :           //      if (qt > 115.) qt =115.; //must be fix!!!
     325             :           //  fill TDC
     326           6 :           timeDelayCFD[i] = fParam->GetTimeDelayCFD(i);
     327           6 :           trCFD = Int_t (timeGaus[i]/channelWidth + timeDelayCFD[i]); 
     328             : 
     329           6 :           TGraph* gr = ((TGraph*)fAmpLED.At(i));
     330          12 :           if(gr) sl = gr->Eval(qt);
     331             : 
     332           6 :           TGraph* gr1 = ((TGraph*)fAmpQTC.At(i));
     333          12 :           if(gr1)  qtCh = gr1->Eval(qt);
     334           6 :           fADC0->AddAt(0,i);
     335           6 :           if(qtCh>0) {
     336          12 :             if(fRun2)
     337           6 :             fADC->AddAt(Int_t(1000.*qt),i);
     338             :             else
     339           6 :             fADC->AddAt(Int_t(qtCh),i);
     340             :           }
     341             :           //      sumMult += Int_t ((al*gain[i]/ph2Mip)*50) ;
     342           6 :           sumMult += Int_t (qtCh/sumMultCoeff)  ;
     343             :          
     344             :           // put slewing 
     345           6 :           TGraph *fu=(TGraph*) fParam ->GetWalk(i);
     346          12 :           if(fu)  slew=fu->Eval(Float_t(qtCh));
     347           6 :           if(!fRun2)
     348           6 :             trCFD = trCFD + Int_t(slew); //for the same channel as cosmic
     349           6 :           ftimeCFD->AddAt(Int_t (trCFD),i);
     350           6 :           trLED = Int_t(trCFD  + sl );
     351           6 :           ftimeLED->AddAt(trLED,i); 
     352          18 :           AliDebug(1,Form("  pmt %i : delay %f time in ns %f time in channels %i  LEd %i  ",  i, timeDelayCFD[i], timeGaus[i],trCFD, trLED ));
     353          18 :           AliDebug(1,Form(" qt in MIP %f led-cfd in  %f qt in channels %f   ",qt, sl, qtCh));
     354             : 
     355           6 :         }
     356             :       } //pmt loop
     357             : 
     358             :     //folding with alignmentz position distribution  
     359           4 :     if( besttimeC > 10000. && besttimeC <15000)
     360           2 :       bestCTDC=Int_t ((besttimeC+timeDelayCFD[pmtBestC])
     361           1 :                          /channelWidth);
     362             :  
     363           4 :     if( besttimeA > 10000. && besttimeA <15000)
     364           6 :       bestATDC=Int_t ((besttimeA+timeDelayCFD[pmtBestA])
     365           3 :                         /channelWidth);
     366             : 
     367           4 :     if (bestATDC < 99999 && bestCTDC < 99999)
     368             :       {
     369           2 :         timeDiff=Int_t (((besttimeC-besttimeA)+1000*delayVertex)
     370           1 :                         /channelWidth);
     371           1 :         meanTime=Int_t (((besttimeC+besttimeA)/2. )/channelWidth);
     372           1 :       }
     373             : 
     374           4 :     if (sumMult > threshold){
     375           0 :       fSumMult =  Int_t (1000.* TMath::Log(Double_t(sumMult) / Double_t(sumMultCoeff))
     376           0 :                          /channelWidth);
     377           0 :       AliDebug(10,Form("summult mv %i   mult  in chammens %i in ps %f ", 
     378             :                       sumMult, fSumMult, fSumMult*channelWidth));
     379             :     }
     380             : 
     381           8 :     fT0->AddDigit(bestATDC,bestCTDC,meanTime,timeDiff,fSumMult, refpoint,
     382           4 :                        ftimeCFD,fADC0,ftimeLED,fADC);
     383             :      
     384             :     
     385          12 :       AliDebug(10,Form(" Digits wrote refpoint %i bestATDC %i bestCTDC %i  meanTime %i  timeDiff %i fSumMult %i ",refpoint ,bestATDC,bestCTDC,meanTime,timeDiff,fSumMult ));
     386           4 :     pOutStartLoader->UnloadHits();
     387           4 :   } //input streams loop
     388             :   
     389             :     //load digits    
     390           4 :     pOutStartLoader->LoadDigits("UPDATE");
     391           4 :     TTree *treeD  = pOutStartLoader->TreeD();
     392           4 :     if (treeD == 0x0) {
     393           4 :       pOutStartLoader->MakeTree("D");
     394           4 :       treeD = pOutStartLoader->TreeD();
     395           4 :     }
     396           4 :     treeD->Reset();
     397           4 :     fT0  = (AliT0*)outRL ->GetAliRun()->GetDetector("T0");
     398             :     // Make a branch in the tree 
     399           4 :     fT0->MakeBranch("D");
     400           4 :      treeD->Fill();
     401             :   
     402           4 :      pOutStartLoader->WriteDigits("OVERWRITE");
     403             :      
     404           4 :      fT0->ResetDigits();
     405           4 :      pOutStartLoader->UnloadDigits();
     406             :      
     407           8 : }

Generated by: LCOV version 1.11