1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 /* History of cvs commits:
20 * $Log: AliPHOSDigitizer.cxx,v $
21 * Revision 1.104 2007/12/18 09:08:18 hristov
22 * Splitting of the QA maker into simulation and reconstruction dependent parts (Yves)
24 * Revision 1.103 2007/11/07 11:25:06 schutz
25 * Comment out the QA checking before starting digitization
27 * Revision 1.102 2007/10/19 18:04:29 schutz
28 * The standalone QA data maker is called from AliSimulation and AliReconstruction outside the event loop; i.e. re-reading the data. The QA data making in the event loop has been commented out.
30 * Revision 1.101 2007/10/14 21:08:10 schutz
31 * Introduced the checking of QA results from previous step before entering the event loop
33 * Revision 1.100 2007/10/10 09:05:10 schutz
34 * Changing name QualAss to QA
36 * Revision 1.99 2007/09/30 17:08:20 schutz
37 * Introducing the notion of QA data acquisition cycle (needed by online)
39 * Revision 1.98 2007/09/26 14:22:17 cvetan
40 * Important changes to the reconstructor classes. Complete elimination of the run-loaders, which are now steered only from AliReconstruction. Removal of the corresponding Reconstruct() and FillESD() methods.
42 * Revision 1.97 2007/08/07 14:12:03 kharlov
43 * Quality assurance added (Yves Schutz)
45 * Revision 1.96 2007/04/28 10:43:36 policheh
46 * Dead channels simulation: digit energy sets to 0.
48 * Revision 1.95 2007/04/10 07:20:52 kharlov
49 * Decalibration should use the same CDB as calibration in AliPHOSClusterizerv1
51 * Revision 1.94 2007/02/01 10:34:47 hristov
52 * Removing warnings on Solaris x86
54 * Revision 1.93 2006/10/17 13:17:01 kharlov
55 * Replace AliInfo by AliDebug
57 * Revision 1.92 2006/08/28 10:01:56 kharlov
58 * Effective C++ warnings fixed (Timur Pocheptsov)
60 * Revision 1.91 2006/04/29 20:25:30 hristov
61 * Decalibration is implemented (Yu.Kharlov)
63 * Revision 1.90 2006/04/22 10:30:17 hristov
64 * Add fEnergy to AliPHOSDigit and operate with EMC amplitude in energy units (Yu.Kharlov)
66 * Revision 1.89 2006/04/11 15:22:59 hristov
67 * run number in query set to -1: forces AliCDBManager to use its run number (A.Colla)
69 * Revision 1.88 2006/03/13 14:05:43 kharlov
70 * Calibration objects for EMC and CPV
72 * Revision 1.87 2005/08/24 15:33:49 kharlov
73 * Calibration data for raw digits
75 * Revision 1.86 2005/07/12 20:07:35 hristov
76 * Changes needed to run simulation and reconstrruction in the same AliRoot session
78 * Revision 1.85 2005/05/28 14:19:04 schutz
79 * Compilation warnings fixed by T.P.
83 //_________________________________________________________________________
84 //*-- Author : Dmitri Peressounko (SUBATECH & Kurchatov Institute)
85 //////////////////////////////////////////////////////////////////////////////
86 // This class performs digitization of Summable digits (in the PHOS case it is just
87 // the sum of contributions from all primary particles into a given cell).
88 // In addition it performs mixing of summable digits from different events.
89 // The name of the class is also the title of the branch that will contain
90 // the created SDigits
91 // The title of the class is the name of the file that contains the hits from
92 // which the SDigits are created
94 // For each event two branches are created in TreeD:
95 // "PHOS" - list of digits
96 // "AliPHOSDigitizer" - AliPHOSDigitizer with all parameters used in digitization
98 // Note, that one can set a title for new digits branch, and repeat digitization with
99 // another set of parameters.
102 // root[0] AliPHOSDigitizer * d = new AliPHOSDigitizer() ;
103 // root[1] d->Digitize()
104 // Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
105 // //Digitizes SDigitis in all events found in file galice.root
107 // root[2] AliPHOSDigitizer * d1 = new AliPHOSDigitizer("galice1.root") ;
108 // // Will read sdigits from galice1.root
109 // root[3] d1->MixWith("galice2.root")
110 // Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
111 // // Reads another set of sdigits from galice2.root
112 // root[3] d1->MixWith("galice3.root")
113 // // Reads another set of sdigits from galice3.root
114 // root[4] d->Digitize("deb timing")
115 // // Reads SDigits from files galice1.root, galice2.root ....
116 // // mixes them and stores produced Digits in file galice1.root
117 // // deb - prints number of produced digits
118 // // deb all - prints list of produced digits
119 // // timing - prints time used for digitization
122 // --- ROOT system ---
125 #include "TBenchmark.h"
129 // --- Standard library ---
131 // --- AliRoot header files ---
132 #include <TGeoManager.h>
134 #include "AliDigitizationInput.h"
135 #include "AliPHOSDigit.h"
136 #include "AliPHOSDigitizer.h"
137 #include "AliPHOSGeometry.h"
138 #include "AliPHOSTick.h"
139 #include "AliPHOSSimParam.h"
140 #include "AliPHOSCalibData.h"
141 #include "AliRunLoader.h"
142 #include "AliPHOSLoader.h"
143 #include "AliPHOSPulseGenerator.h"
145 ClassImp(AliPHOSDigitizer)
148 //____________________________________________________________________________
149 AliPHOSDigitizer::AliPHOSDigitizer() :
155 fInputFileNames(0x0),
158 fEventFolderName(""),
169 fDigInput = 0 ; // We work in the standalong mode
172 //____________________________________________________________________________
173 AliPHOSDigitizer::AliPHOSDigitizer(TString alirunFileName,
174 TString eventFolderName):
175 AliDigitizer("PHOSDigitizer", alirunFileName),
176 fDefaultInit(kFALSE),
180 fInputFileNames(0x0),
183 fEventFolderName(eventFolderName),
195 fDefaultInit = kFALSE ;
196 fDigInput = 0 ; // We work in the standalone mode
197 fcdb = new AliPHOSCalibData(-1);
200 //____________________________________________________________________________
201 AliPHOSDigitizer::AliPHOSDigitizer(const AliPHOSDigitizer & d) :
203 fDefaultInit(d.fDefaultInit),
204 fDigitsInRun(d.fDigitsInRun),
207 fInputFileNames(0x0),//?
209 fEmcCrystals(d.fEmcCrystals),
210 fEventFolderName(d.fEventFolderName),
211 fFirstEvent(d.fFirstEvent),
212 fLastEvent(d.fLastEvent),
220 SetName(d.GetName()) ;
221 SetTitle(d.GetTitle()) ;
222 fcdb = new AliPHOSCalibData(-1);
225 //____________________________________________________________________________
226 AliPHOSDigitizer::AliPHOSDigitizer(AliDigitizationInput * rd) :
227 AliDigitizer(rd,"PHOSDigitizer"),
228 fDefaultInit(kFALSE),
232 fInputFileNames(0x0),
235 fEventFolderName(fDigInput->GetInputFolderName(0)),
245 // ctor Init() is called by RunDigitizer
247 SetTitle(static_cast<AliStream*>(fDigInput->GetInputStream(0))->GetFileName(0));
249 fDefaultInit = kFALSE ;
250 fcdb = new AliPHOSCalibData(-1);
253 //____________________________________________________________________________
254 AliPHOSDigitizer::~AliPHOSDigitizer()
257 delete [] fInputFileNames ;
258 delete [] fEventNames ;
261 delete [] fADCValuesLG;
262 delete [] fADCValuesHG;
264 if(fcdb){ delete fcdb ; fcdb=0;}
268 //____________________________________________________________________________
269 void AliPHOSDigitizer::Digitize(Int_t event)
272 // Makes the digitization of the collected summable digits.
273 // It first creates the array of all PHOS modules
274 // filled with noise (different for EMC, and CPV) and
275 // then adds contributions from SDigits.
276 // This design avoids scanning over the list of digits to add
277 // contribution to new SDigits only.
279 Bool_t toMakeNoise = kTRUE ; //Do not create noisy digits if merge with real data
282 AliRunLoader* rl = AliRunLoader::GetRunLoader(fEventFolderName) ;
283 AliPHOSLoader * phosLoader = static_cast<AliPHOSLoader*>(rl->GetLoader("PHOSLoader"));
285 Int_t readEvent = event ;
287 readEvent = static_cast<AliStream*>(fDigInput->GetInputStream(0))->GetCurrentEventNumber() ;
288 AliDebug(1,Form("Adding event %d from input stream 0 %s %s",
289 readEvent, GetTitle(), fEventFolderName.Data())) ;
290 rl->GetEvent(readEvent) ;
291 phosLoader->CleanSDigits() ;
292 phosLoader->LoadSDigits("READ") ;
295 TClonesArray * digits = phosLoader->Digits() ;
297 phosLoader->MakeDigitsArray() ;
298 digits = phosLoader->Digits() ;
304 const AliPHOSGeometry *geom = AliPHOSGeometry::GetInstance() ;
305 //Making digits with noise, first EMC
306 //Check which PHOS modules are present
307 Bool_t isPresent[5] ;
310 for(Int_t i=0; i<5; i++){
311 volpath = "/ALIC_1/PHOS_";
313 if (gGeoManager->CheckPath(volpath.Data())) {
322 Int_t nEMC = nmod*geom->GetNPhi()*geom->GetNZ();
327 //check if CPV exists
328 Bool_t isCPVpresent=0 ;
329 for(Int_t i=1; i<=5 && !isCPVpresent; i++){
330 volpath = "/ALIC_1/PHOS_";
332 volpath += "/PCPV_1";
333 if (gGeoManager->CheckPath(volpath.Data()))
338 nCPV = nEMC + geom->GetNumberOfCPVPadsZ() * geom->GetNumberOfCPVPadsPhi() * nmod ;
344 digits->Expand(nCPV) ;
346 //take all the inputs to add together and load the SDigits
347 TObjArray * sdigArray = new TObjArray(fInput) ;
348 sdigArray->AddAt(phosLoader->SDigits(), 0) ;
350 for(Int_t i = 1 ; i < fInput ; i++){
351 TString tempo(fEventNames[i]) ;
353 AliRunLoader* rl2 = AliRunLoader::GetRunLoader(tempo) ;
355 rl2 = AliRunLoader::Open(fInputFileNames[i], tempo) ;
357 Fatal("AliPHOSDigitizer", "Could not find the Run Loader for %s - %s",fInputFileNames[i].Data(), tempo.Data()) ;
362 AliPHOSLoader * phosLoader2 = static_cast<AliPHOSLoader*>(rl2->GetLoader("PHOSLoader"));
365 readEvent = static_cast<AliStream*>(fDigInput->GetInputStream(i))->GetCurrentEventNumber() ;
367 TClonesArray * digs ;
368 if(AliPHOSSimParam::GetInstance()->IsStreamDigits(i)){ //This is Digits Stream
369 AliInfo(Form("Adding event %d from input stream %d %s %s",
370 readEvent, i, fInputFileNames[i].Data(), tempo.Data())) ;
371 rl2->GetEvent(readEvent) ;
372 phosLoader2->CleanDigits() ;
373 phosLoader2->LoadDigits("READ") ;
374 digs = phosLoader2->Digits() ;
375 toMakeNoise=0 ; //Do not add noise, it is already in stream
378 AliInfo(Form("Adding event %d (SDigits) from input stream %d %s %s",
379 readEvent, i, fInputFileNames[i].Data(), tempo.Data())) ;
380 rl2->GetEvent(readEvent) ;
381 phosLoader2->CleanSDigits() ;
382 phosLoader2->LoadSDigits("READ") ;
383 digs = phosLoader2->SDigits() ;
385 sdigArray->AddAt(digs, i) ;
388 //Find the first crystal with signal
389 Int_t nextSig = 200000 ;
390 TClonesArray * sdigits ;
391 for(Int_t i = 0 ; i < fInput ; i++){
392 sdigits = static_cast<TClonesArray *>(sdigArray->At(i)) ;
393 if ( !sdigits->GetEntriesFast() )
395 Int_t curNext = static_cast<AliPHOSDigit *>(sdigits->At(0))->GetId() ;
396 if(curNext < nextSig)
400 TArrayI index(fInput) ;
401 index.Reset() ; //Set all indexes to zero
403 AliPHOSDigit * digit ;
404 AliPHOSDigit * curSDigit ;
406 // TClonesArray * ticks = new TClonesArray("AliPHOSTick",1000) ;
408 //Put Noise contribution
409 Double_t apdNoise = 0. ;
411 apdNoise = AliPHOSSimParam::GetInstance()->GetAPDNoise() ;
413 Int_t emcpermod=geom->GetNPhi()*geom->GetNZ();
415 for(Int_t imod=0; imod<5; imod++){
418 Int_t firstAbsId=imod*emcpermod+1 ;
419 Int_t lastAbsId =(imod+1)*emcpermod ;
420 for(absID = firstAbsId ; absID <= lastAbsId ; absID++){
421 Float_t noise = gRandom->Gaus(0.,apdNoise) ;
422 new((*digits)[idigit]) AliPHOSDigit( -1, absID, noise, TimeOfNoise() ) ;
423 //look if we have to add signal?
424 digit = static_cast<AliPHOSDigit *>(digits->At(idigit)) ;
428 //Add SDigits from all inputs
430 // Int_t contrib = 0 ;
432 //New Timing model is necessary
433 // Float_t a = digit->GetEnergy() ;
434 // Float_t b = TMath::Abs( a / fTimeSignalLength) ;
435 // //Mark the beginning of the signal
436 // new((*ticks)[contrib++]) AliPHOSTick(digit->GetTime(),0, b);
437 // //Mark the end of the signal
438 // new((*ticks)[contrib++]) AliPHOSTick(digit->GetTime()+fTimeSignalLength, -a, -b);
440 // Calculate time as time of the largest digit
441 Float_t time = digit->GetTime() ;
442 Float_t eTime= digit->GetEnergy() ;
445 for(Int_t i = 0 ; i < fInput ; i++){
446 if( static_cast<TClonesArray *>(sdigArray->At(i))->GetEntriesFast() > index[i] ){
447 curSDigit = static_cast<AliPHOSDigit*>(static_cast<TClonesArray *>(sdigArray->At(i))->At(index[i])) ;
448 if(AliPHOSSimParam::GetInstance()->IsStreamDigits(i)){ //This is Digits Stream
449 curSDigit->SetEnergy(Calibrate(curSDigit->GetEnergy(),curSDigit->GetId())) ;
450 curSDigit->SetTime(CalibrateT(curSDigit->GetTime(),curSDigit->GetId())) ;
455 //May be several digits will contribute from the same input
456 while(curSDigit && curSDigit->GetId() == absID){
457 //Shift primary to separate primaries belonging different inputs
458 Int_t primaryoffset ;
460 primaryoffset = fDigInput->GetMask(i) ;
462 primaryoffset = 10000000*i ;
463 curSDigit->ShiftPrimary(primaryoffset) ;
465 //New Timing model is necessary
466 // a = curSDigit->GetEnergy() ;
467 // b = a /fTimeSignalLength ;
468 // new((*ticks)[contrib++]) AliPHOSTick(curSDigit->GetTime(),0, b);
469 // new((*ticks)[contrib++]) AliPHOSTick(curSDigit->GetTime()+fTimeSignalLength, -a, -b);
470 if(curSDigit->GetEnergy()>eTime){
471 eTime=curSDigit->GetEnergy() ;
472 time=curSDigit->GetTime() ;
474 *digit += *curSDigit ; //add energies
477 if( static_cast<TClonesArray *>(sdigArray->At(i))->GetEntriesFast() > index[i] )
478 curSDigit = static_cast<AliPHOSDigit*>(static_cast<TClonesArray *>(sdigArray->At(i))->At(index[i])) ;
484 //calculate and set time
485 //New Timing model is necessary
486 // Float_t time = FrontEdgeTime(ticks) ;
487 digit->SetTime(time) ;
489 //Find next signal module
491 for(Int_t i = 0 ; i < fInput ; i++){
492 sdigits = static_cast<TClonesArray *>(sdigArray->At(i)) ;
493 Int_t curNext = nextSig ;
494 if(sdigits->GetEntriesFast() > index[i] ){
495 curNext = static_cast<AliPHOSDigit *>(sdigits->At(index[i]))->GetId() ;
497 if(curNext < nextSig) nextSig = curNext ;
504 //Apply non-linearity
505 if(AliPHOSSimParam::GetInstance()->IsCellNonlinearityOn()){ //Apply non-lineairyt on cell level
506 const Double_t aNL = AliPHOSSimParam::GetInstance()->GetCellNonLineairyA() ;
507 const Double_t bNL = AliPHOSSimParam::GetInstance()->GetCellNonLineairyB() ;
508 const Double_t cNL = AliPHOSSimParam::GetInstance()->GetCellNonLineairyC() ;
509 for(Int_t i = 0 ; i < nEMC ; i++){
510 digit = static_cast<AliPHOSDigit*>( digits->At(i) ) ;
511 Double_t e= digit->GetEnergy() ;
512 // version(1) digit->SetEnergy(e*(1+a*TMath::Exp(-e/b))) ;
513 digit->SetEnergy(e*cNL*(1.+aNL*TMath::Exp(-e*e/2./bNL/bNL))) ; //Better agreement with data...
518 //distretize energy if necessary
519 if(AliPHOSSimParam::GetInstance()->IsEDigitizationOn()){
520 Float_t adcW=AliPHOSSimParam::GetInstance()->GetADCchannelW() ;
521 for(Int_t i = 0 ; i < nEMC ; i++){
522 digit = static_cast<AliPHOSDigit*>( digits->At(i) ) ;
523 digit->SetEnergy(adcW*ceil(digit->GetEnergy()/adcW)) ;
527 //Apply decalibration if necessary
528 for(Int_t i = 0 ; i < nEMC ; i++){
529 digit = static_cast<AliPHOSDigit*>( digits->At(i) ) ;
536 //Now CPV digits (different noise and no timing)
537 Int_t cpvpermod = geom->GetNumberOfCPVPadsZ() * geom->GetNumberOfCPVPadsPhi() ;
538 Int_t nEMCtotal=emcpermod*5 ;
539 Float_t cpvNoise = AliPHOSSimParam::GetInstance()->GetCPVNoise() ;
540 if(isCPVpresent){ //CPV is present in current geometry
541 for(Int_t imod=0; imod<5; imod++){ //module is present in current geometry
544 Int_t firstAbsId=nEMCtotal+imod*cpvpermod+1 ;
545 Int_t lastAbsId =nEMCtotal+(imod+1)*cpvpermod ;
546 for(absID = firstAbsId; absID <= lastAbsId; absID++){
547 Float_t noise = gRandom->Gaus(0., cpvNoise) ;
548 new((*digits)[idigit]) AliPHOSDigit( -1,absID,noise, TimeOfNoise() ) ;
550 //look if we have to add signal?
552 digit = static_cast<AliPHOSDigit *>(digits->At(idigit-1)) ;
553 //Add SDigits from all inputs
554 for(Int_t i = 0 ; i < fInput ; i++){
555 if( static_cast<TClonesArray *>(sdigArray->At(i))->GetEntriesFast() > index[i] )
556 curSDigit = static_cast<AliPHOSDigit*>( static_cast<TClonesArray *>(sdigArray->At(i))->At(index[i])) ;
560 //May be several digits will contribute from the same input
561 while(curSDigit && curSDigit->GetId() == absID){
562 //Shift primary to separate primaries belonging different inputs
563 Int_t primaryoffset ;
565 primaryoffset = fDigInput->GetMask(i) ;
567 primaryoffset = 10000000*i ;
568 curSDigit->ShiftPrimary(primaryoffset) ;
571 *digit += *curSDigit ;
573 if( static_cast<TClonesArray *>(sdigArray->At(i))->GetEntriesFast() > index[i] )
574 curSDigit = static_cast<AliPHOSDigit*>( static_cast<TClonesArray *>(sdigArray->At(i))->At(index[i]) ) ;
580 //Find next signal module
582 for(Int_t i = 0 ; i < fInput ; i++){
583 sdigits = static_cast<TClonesArray *>(sdigArray->At(i)) ;
584 Int_t curNext = nextSig ;
585 if(sdigits->GetEntriesFast() > index[i] )
586 curNext = static_cast<AliPHOSDigit *>( sdigits->At(index[i]) )->GetId() ;
587 if(curNext < nextSig) nextSig = curNext ;
595 delete sdigArray ; //We should not delete its contents
599 //set amplitudes in bad channels to zero
601 for(Int_t i = 0 ; i <digits->GetEntriesFast(); i++){
602 digit = static_cast<AliPHOSDigit*>( digits->At(i) ) ;
603 geom->AbsToRelNumbering(digit->GetId(),relId);
604 if(relId[1] == 0) // Emc
605 if(fcdb->IsBadChannelEmc(relId[0],relId[3],relId[2])) digit->SetEnergy(0.);
608 //remove digits below thresholds
609 Float_t emcThreshold = AliPHOSSimParam::GetInstance()->GetEmcDigitsThreshold() ;
610 for(Int_t i = 0 ; i < nEMC ; i++){
611 digit = static_cast<AliPHOSDigit*>( digits->At(i) ) ;
613 if(digit->GetEnergy() < emcThreshold){
614 digits->RemoveAt(i) ;
618 geom->AbsToRelNumbering(digit->GetId(),relId);
620 // digit->SetEnergy(TMath::Ceil(digit->GetEnergy())-0.9999) ;
622 Float_t tres = TimeResolution(digit->GetEnergy()) ;
623 digit->SetTime(gRandom->Gaus(digit->GetTime(), tres) ) ;
626 fPulse->SetAmplitude(digit->GetEnergy()/
627 fcdb->GetADCchannelEmc(relId[0],relId[3],relId[2]));
628 fPulse->SetTZero(digit->GetTimeR());
629 fPulse->MakeSamples();
630 fPulse->GetSamples(fADCValuesHG, fADCValuesLG) ;
631 Int_t nSamples = fPulse->GetRawFormatTimeBins();
632 digit->SetALTROSamplesHG(nSamples,fADCValuesHG);
633 digit->SetALTROSamplesLG(nSamples,fADCValuesLG);
636 Float_t cpvDigitThreshold = AliPHOSSimParam::GetInstance()->GetCpvDigitsThreshold() ;
637 for(Int_t i = nEMC; i < nCPV ; i++){
638 if( static_cast<AliPHOSDigit*>(digits->At(i))->GetEnergy() < cpvDigitThreshold )
639 digits->RemoveAt(i) ;
643 Int_t ndigits = digits->GetEntriesFast() ;
645 //Set indexes in list of digits and make true digitization of the energy
646 for (Int_t i = 0 ; i < ndigits ; i++) {
647 digit = static_cast<AliPHOSDigit*>( digits->At(i) ) ;
648 digit->SetIndexInList(i) ;
649 if(digit->GetId() > fEmcCrystals){ //digitize CPV only
650 digit->SetAmp(DigitizeCPV(digit->GetEnergy(),digit->GetId()) ) ;
655 //____________________________________________________________________________
656 Float_t AliPHOSDigitizer::Calibrate(Float_t amp,Int_t absId){
658 const AliPHOSGeometry *geom = AliPHOSGeometry::GetInstance() ;
660 //Determine rel.position of the cell absolute ID
662 geom->AbsToRelNumbering(absId,relId);
663 Int_t module=relId[0];
665 Int_t column=relId[3];
666 if(relId[1]==0){ //This Is EMC
667 Float_t calibration = fcdb->GetADCchannelEmc(module,column,row);
668 return amp*calibration ;
672 //____________________________________________________________________________
673 void AliPHOSDigitizer::Decalibrate(AliPHOSDigit *digit)
675 // Decalibrate EMC digit, i.e. change its energy by a factor read from CDB
677 const AliPHOSGeometry *geom = AliPHOSGeometry::GetInstance() ;
679 //Determine rel.position of the cell absolute ID
681 geom->AbsToRelNumbering(digit->GetId(),relId);
682 Int_t module=relId[0];
684 Int_t column=relId[3];
685 if(relId[1]==0){ //This Is EMC
686 Float_t decalib = fcdb->GetADCchannelEmcDecalib(module,column,row); // O(1)
687 Float_t calibration = fcdb->GetADCchannelEmc(module,column,row)*decalib;
688 Float_t energy = digit->GetEnergy()/calibration;
689 digit->SetEnergy(energy); //Now digit measures E in ADC counts
690 Float_t time = digit->GetTime() ;
691 time-=fcdb->GetTimeShiftEmc(module,column,row);
692 digit->SetTime(time) ;
695 //____________________________________________________________________________
696 Float_t AliPHOSDigitizer::CalibrateT(Float_t time,Int_t absId){
697 //Apply time calibration
698 const AliPHOSGeometry *geom = AliPHOSGeometry::GetInstance() ;
700 //Determine rel.position of the cell absolute ID
702 geom->AbsToRelNumbering(absId,relId);
703 Int_t module=relId[0];
705 Int_t column=relId[3];
706 time += fcdb->GetTimeShiftEmc(module,column,row);
709 //____________________________________________________________________________
710 Int_t AliPHOSDigitizer::DigitizeCPV(Float_t charge, Int_t absId)
712 // Returns digitized value of the CPV charge in a pad absId
714 const AliPHOSGeometry *geom = AliPHOSGeometry::GetInstance() ;
716 //Determine rel.position of the cell absId
718 geom->AbsToRelNumbering(absId,relId);
719 Int_t module=relId[0];
721 Int_t column=relId[3];
725 if(absId > fEmcCrystals){ //digitize CPV only
727 //reading calibration data for cell absId.
728 Float_t adcPedestalCpv = fcdb->GetADCpedestalCpv(module,column,row);
729 Float_t adcChanelCpv = fcdb->GetADCchannelCpv( module,column,row);
731 channel = (Int_t) TMath::Ceil((charge - adcPedestalCpv)/adcChanelCpv) ;
732 Int_t nMax = AliPHOSSimParam::GetInstance()->GetNADCcpv() ;
733 if(channel > nMax ) channel = nMax ;
738 //____________________________________________________________________________
739 void AliPHOSDigitizer::Digitize(Option_t *option)
741 // Steering method to process digitization for events
742 // in the range from fFirstEvent to fLastEvent.
743 // This range is optionally set by SetEventRange().
744 // if fLastEvent=-1, then process events until the end.
745 // by default fLastEvent = fFirstEvent (process only one event)
747 if (!fInit) { // to prevent overwrite existing file
748 AliError(Form("Give a version name different from %s",
749 fEventFolderName.Data() )) ;
753 if (strstr(option,"print")) {
758 if(strstr(option,"tim"))
759 gBenchmark->Start("PHOSDigitizer");
761 AliRunLoader* rl = AliRunLoader::GetRunLoader(fEventFolderName) ;
762 AliPHOSLoader * phosLoader = static_cast<AliPHOSLoader*>(rl->GetLoader("PHOSLoader"));
764 if (fLastEvent == -1)
765 fLastEvent = rl->GetNumberOfEvents() - 1 ;
767 fLastEvent = fFirstEvent ;
769 Int_t nEvents = fLastEvent - fFirstEvent + 1;
773 for (ievent = fFirstEvent; ievent <= fLastEvent; ievent++) {
776 Digitize(ievent) ; //Add prepared SDigits to digits and add the noise
780 if(strstr(option,"deb"))
783 //increment the total number of Digits per run
784 fDigitsInRun += phosLoader->Digits()->GetEntriesFast() ;
787 if(strstr(option,"tim")){
788 gBenchmark->Stop("PHOSDigitizer");
790 message = " took %f seconds for Digitizing %f seconds per event\n" ;
791 AliInfo(Form( message.Data(),
792 gBenchmark->GetCpuTime("PHOSDigitizer"),
793 gBenchmark->GetCpuTime("PHOSDigitizer")/nEvents ));
796 //____________________________________________________________________________
797 Float_t AliPHOSDigitizer::TimeResolution(Float_t e){
798 //calculate TOF resolution using beam-test resutls
799 Float_t a=AliPHOSSimParam::GetInstance()->GetTOFa() ;
800 Float_t b=AliPHOSSimParam::GetInstance()->GetTOFb() ;
801 return TMath::Sqrt(a*a+b*b/e) ;
804 ////____________________________________________________________________________
805 //Float_t AliPHOSDigitizer::FrontEdgeTime(TClonesArray * ticks) const
807 // // Returns the shortest time among all time ticks
809 // ticks->Sort() ; //Sort in accordance with times of ticks
811 // AliPHOSTick * ctick = (AliPHOSTick *) it.Next() ;
812 // Float_t time = ctick->CrossingTime(fTimeThreshold) ;
815 // while((t=(AliPHOSTick*) it.Next())){
816 // if(t->GetTime() < time) //This tick starts before crossing
821 // time = ctick->CrossingTime(fTimeThreshold) ;
826 //____________________________________________________________________________
827 Bool_t AliPHOSDigitizer::Init()
829 // Makes all memory allocations
832 AliPHOSGeometry *geom;
833 if (!(geom = AliPHOSGeometry::GetInstance()))
834 geom = AliPHOSGeometry::GetInstance("IHEP","");
835 // const AliPHOSGeometry *geom = AliPHOSGeometry::GetInstance() ;
837 fEmcCrystals = geom->GetNModules() * geom->GetNCristalsInModule() ;
840 fLastEvent = fFirstEvent ;
842 fInput = fDigInput->GetNinputs() ;
846 fInputFileNames = new TString[fInput] ;
847 fEventNames = new TString[fInput] ;
848 fInputFileNames[0] = GetTitle() ;
849 fEventNames[0] = fEventFolderName.Data() ;
851 for (index = 1 ; index < fInput ; index++) {
852 fInputFileNames[index] = static_cast<AliStream*>(fDigInput->GetInputStream(index))->GetFileName(0);
853 TString tempo = fDigInput->GetInputFolderName(index) ;
854 fEventNames[index] = tempo.Remove(tempo.Length()-1) ; // strip of the stream number added by fDigInput
857 //to prevent cleaning of this object while GetEvent is called
858 AliRunLoader* rl = AliRunLoader::GetRunLoader(fEventFolderName) ;
860 rl = AliRunLoader::Open(GetTitle(), fEventFolderName) ;
865 //____________________________________________________________________________
866 void AliPHOSDigitizer::InitParameters()
868 // Set initial parameters Digitizer
871 SetEventRange(0,-1) ;
872 fPulse = new AliPHOSPulseGenerator();
873 fADCValuesLG = new Int_t[fPulse->GetRawFormatTimeBins()];
874 fADCValuesHG = new Int_t[fPulse->GetRawFormatTimeBins()];
878 //__________________________________________________________________
879 void AliPHOSDigitizer::Print(const Option_t *)const
881 // Print Digitizer's parameters
882 AliInfo(Form("\n------------------- %s -------------", GetName() )) ;
883 if( strcmp(fEventFolderName.Data(), "") != 0 ){
884 printf(" Writing Digits to branch with title %s\n", fEventFolderName.Data()) ;
888 nStreams = GetNInputStreams() ;
893 for (index = 0 ; index < nStreams ; index++) {
894 TString tempo(fEventNames[index]) ;
896 printf ("Adding SDigits from %s \n", fInputFileNames[index].Data()) ;
899 // printf("\nWith following parameters:\n") ;
900 // printf(" Electronics noise in EMC (fPinNoise) = %f GeV\n", fPinNoise ) ;
901 // printf(" Threshold in EMC (fEMCDigitThreshold) = %f GeV\n", fEMCDigitThreshold ) ;
902 // printf(" Noise in CPV (fCPVNoise) = %f aux units\n", fCPVNoise ) ;
903 // printf(" Threshold in CPV (fCPVDigitThreshold) = %f aux units\n",fCPVDigitThreshold ) ;
904 printf(" ---------------------------------------------------\n") ;
907 AliInfo(Form("AliPHOSDigitizer not initialized" )) ;
911 //__________________________________________________________________
912 void AliPHOSDigitizer::PrintDigits(Option_t * option)
914 // Print a table of digits
917 AliRunLoader* rl = AliRunLoader::GetRunLoader(fEventFolderName) ;
918 AliPHOSLoader * phosLoader = static_cast<AliPHOSLoader*>(rl->GetLoader("PHOSLoader"));
919 TClonesArray * digits = phosLoader->Digits() ;
920 const AliPHOSGeometry *geom = AliPHOSGeometry::GetInstance() ;
922 AliInfo(Form("%d", digits->GetEntriesFast())) ;
923 printf("\nevent %d", gAlice->GetEvNumber()) ;
924 printf("\n Number of entries in Digits list %d", digits->GetEntriesFast() ) ;
927 if(strstr(option,"all")||strstr(option,"EMC")){
929 AliPHOSDigit * digit;
930 printf("\nEMC digits (with primaries):\n") ;
931 printf("\n Id Amplitude Time Index Nprim: Primaries list \n") ;
932 Int_t maxEmc = geom->GetNModules()*geom->GetNCristalsInModule() ;
934 for (index = 0 ; (index < digits->GetEntriesFast()) &&
935 (static_cast<AliPHOSDigit *>(digits->At(index))->GetId() <= maxEmc) ; index++) {
936 digit = (AliPHOSDigit * ) digits->At(index) ;
937 if(digit->GetNprimary() == 0)
939 // printf("%6d %8d %6.5e %4d %2d :",
940 // digit->GetId(), digit->GetAmp(), digit->GetTime(), digit->GetIndexInList(), digit->GetNprimary()) ; // YVK
941 printf("%6d %.4f %6.5e %4d %2d :",
942 digit->GetId(), digit->GetEnergy(), digit->GetTime(), digit->GetIndexInList(), digit->GetNprimary()) ;
944 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) {
945 printf("%d ",digit->GetPrimary(iprimary+1) ) ;
951 if(strstr(option,"all")||strstr(option,"CPV")){
953 //loop over CPV digits
954 AliPHOSDigit * digit;
955 printf("\nCPV digits (with primaries):\n") ;
956 printf("\n Id Amplitude Time Index Nprim: Primaries list \n") ;
957 Int_t maxEmc = geom->GetNModules()*geom->GetNCristalsInModule() ;
959 for (index = 0 ; index < digits->GetEntriesFast(); index++) {
960 digit = (AliPHOSDigit * ) digits->At(index) ;
961 if(digit->GetId() > maxEmc){
962 printf("%6d %8d %4d %2d :",
963 digit->GetId(), digit->GetAmp(), digit->GetIndexInList(), digit->GetNprimary()) ;
965 for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) {
966 printf("%d ",digit->GetPrimary(iprimary+1) ) ;
975 //__________________________________________________________________
976 Float_t AliPHOSDigitizer::TimeOfNoise(void) const
977 { // Calculates the time signal generated by noise
978 //PH Info("TimeOfNoise", "Change me") ;
979 return gRandom->Rndm() * 1.28E-5;
982 //__________________________________________________________________
983 void AliPHOSDigitizer::Unload()
987 for(i = 1 ; i < fInput ; i++){
988 TString tempo(fEventNames[i]) ;
990 AliRunLoader* rl = AliRunLoader::GetRunLoader(tempo) ;
991 AliPHOSLoader * phosLoader = static_cast<AliPHOSLoader*>(rl->GetLoader("PHOSLoader"));
992 phosLoader->UnloadSDigits() ;
995 AliRunLoader* rl = AliRunLoader::GetRunLoader(fEventFolderName) ;
996 AliPHOSLoader * phosLoader = static_cast<AliPHOSLoader*>(rl->GetLoader("PHOSLoader"));
997 phosLoader->UnloadDigits() ;
1000 //____________________________________________________________________________
1001 void AliPHOSDigitizer::WriteDigits()
1004 // Makes TreeD in the output file.
1005 // Check if branch already exists:
1006 // if yes, exit without writing: ROOT TTree does not support overwriting/updating of
1007 // already existing branches.
1008 // else creates branch with Digits, named "PHOS", title "...",
1009 // and branch "AliPHOSDigitizer", with the same title to keep all the parameters
1010 // and names of files, from which digits are made.
1012 AliRunLoader* rl = AliRunLoader::GetRunLoader(fEventFolderName) ;
1013 AliPHOSLoader * phosLoader = static_cast<AliPHOSLoader*>(rl->GetLoader("PHOSLoader"));
1015 const TClonesArray * digits = phosLoader->Digits() ;
1016 TTree * treeD = phosLoader->TreeD();
1018 phosLoader->MakeTree("D");
1019 treeD = phosLoader->TreeD();
1022 // -- create Digits branch
1023 Int_t bufferSize = 32000 ;
1024 TBranch * digitsBranch = treeD->Branch("PHOS","TClonesArray",&digits,bufferSize);
1025 digitsBranch->SetTitle(fEventFolderName);
1026 digitsBranch->Fill() ;
1028 phosLoader->WriteDigits("OVERWRITE");