#include "AliMUONDigitizerV3.h"
#include "AliCDBManager.h"
+#include "AliCodeTimer.h"
#include "AliLog.h"
#include "AliMUON.h"
#include "AliMUONCalibrationData.h"
#include "AliMUONConstants.h"
#include "AliMUONDigit.h"
#include "AliMUONLogger.h"
-#include "AliMUONTriggerEfficiencyCells.h"
#include "AliMUONTriggerElectronics.h"
#include "AliMUONTriggerStoreV1.h"
#include "AliMUONVCalibParam.h"
#include "AliMUONVDigitStore.h"
+#include "AliMpCDB.h"
#include "AliMpCathodType.h"
#include "AliMpConstants.h"
#include "AliMpDEIterator.h"
#include "AliMpDEManager.h"
-#include "AliMpDEManager.h"
#include "AliMpIntPair.h"
#include "AliMpPad.h"
#include "AliMpSegmentation.h"
#include <TString.h>
#include <TSystem.h>
-///
+#include "AliMUONGeometryTransformer.h" //ADDED for trigger noise
+
+//-----------------------------------------------------------------------------
/// \class AliMUONDigitizerV3
/// The digitizer is performing the transformation to go from SDigits (digits
/// w/o any electronic noise) to Digits (w/ electronic noise, and decalibration)
/// here, at the digitization level).
///
/// \author Laurent Aphecetche
+//-----------------------------------------------------------------------------
namespace
{
{
return static_cast<AliMUON*>(gAlice->GetModule("MUON"));
}
+
+ //ADDED for trigger noise
+ const AliMUONGeometryTransformer* GetTransformer()
+ {
+ return muon()->GetGeometryTransformer();
+ }
}
const Double_t AliMUONDigitizerV3::fgkNSigmas=3;
//_____________________________________________________________________________
AliMUONDigitizerV3::AliMUONDigitizerV3(AliRunDigitizer* manager,
- Bool_t generateNoisyDigits)
+ Int_t generateNoisyDigits)
: AliDigitizer(manager),
fIsInitialized(kFALSE),
fCalibrationData(0x0),
fTriggerProcessor(0x0),
-fTriggerEfficiency(0x0),
-fGenerateNoisyDigitsTimer(),
-fExecTimer(),
fNoiseFunction(0x0),
+fNoiseFunctionTrig(0x0),
fGenerateNoisyDigits(generateNoisyDigits),
fLogger(new AliMUONLogger(1000)),
fTriggerStore(new AliMUONTriggerStoreV1),
/// Ctor.
AliDebug(1,Form("AliRunDigitizer=%p",fManager));
- fGenerateNoisyDigitsTimer.Start(kTRUE); fGenerateNoisyDigitsTimer.Stop();
- fExecTimer.Start(kTRUE); fExecTimer.Stop();
}
//_____________________________________________________________________________
delete fCalibrationData;
delete fTriggerProcessor;
delete fNoiseFunction;
+ delete fNoiseFunctionTrig;
delete fTriggerStore;
delete fDigitStore;
delete fOutputDigitStore;
-
- if ( fGenerateNoisyDigits )
- {
- AliDebug(1, Form("Execution time for GenerateNoisyDigits() : R:%.2fs C:%.2fs",
- fGenerateNoisyDigitsTimer.RealTime(),
- fGenerateNoisyDigitsTimer.CpuTime()));
- }
- AliDebug(1, Form("Execution time for Exec() : R:%.2fs C:%.2fs",
- fExecTimer.RealTime(),fExecTimer.CpuTime()));
-
+
AliInfo("Summary of messages");
fLogger->Print();
{
/// For tracking digits, starting from an ideal digit's charge, we :
///
- /// - add some noise (thus leading to a realistic charge), if requested to do so
- /// - divide by a gain (thus decalibrating the digit)
+ /// - "divide" by a gain (thus decalibrating the digit)
/// - add a pedestal (thus decalibrating the digit)
+ /// - add some electronics noise (thus leading to a realistic adc), if requested to do so
/// - sets the signal to zero if below 3*sigma of the noise
- static const Int_t kMaxADC = (1<<12)-1; // We code the charge on a 12 bits ADC.
-
- Float_t signal = digit.Charge();
-
- if ( !addNoise )
- {
- digit.SetADC(TMath::Min(kMaxADC,TMath::Nint(signal)));
- return;
- }
+ Float_t charge = digit.Charge();
+ // We set the charge to 0, as the only relevant piece of information
+ // after Digitization is the ADC value.
+ digit.SetCharge(0);
+
Int_t detElemId = digit.DetElemId();
-
Int_t manuId = digit.ManuId();
- Int_t manuChannel = digit.ManuChannel();
AliMUONVCalibParam* pedestal = fCalibrationData->Pedestals(detElemId,manuId);
if (!pedestal)
fLogger->Log(Form("%s:%d:Could not get pedestal for DE=%4d manuId=%4d. Disabling.",
__FILE__,__LINE__,
detElemId,manuId));
- digit.SetCharge(0);
digit.SetADC(0);
return;
}
- Float_t pedestalMean = pedestal->ValueAsFloat(manuChannel,0);
- Float_t pedestalSigma = pedestal->ValueAsFloat(manuChannel,1);
AliMUONVCalibParam* gain = fCalibrationData->Gains(detElemId,manuId);
if (!gain)
fLogger->Log(Form("%s:%d:Could not get gain for DE=%4d manuId=%4d. Disabling.",
__FILE__,__LINE__,
detElemId,manuId));
- digit.SetCharge(0);
digit.SetADC(0);
return;
}
- Float_t gainMean = gain->ValueAsFloat(manuChannel,0);
-
- Float_t adcNoise = gRandom->Gaus(0.0,pedestalSigma);
-
- Int_t adc;
+
+ Int_t manuChannel = digit.ManuChannel();
- if ( gainMean < 1E-6 )
- {
- AliError(Form("Got a too small gain %e for DE=%d manuId=%d manuChannel=%d. "
- "Setting signal to 0.",
- gainMean,detElemId,manuId,manuChannel));
- adc = 0;
- }
- else
- {
- adc = TMath::Nint( signal / gainMean + pedestalMean + adcNoise);///
-
- if ( adc <= pedestalMean + fgkNSigmas*pedestalSigma )
- {
- adc = 0;
- }
- }
+
- // be sure we stick to 12 bits.
- if ( adc > kMaxADC )
- {
- adc = kMaxADC;
- }
+ Int_t adc = DecalibrateTrackerDigit(*pedestal,*gain,manuChannel,charge,addNoise);
- digit.SetCharge(adc);
digit.SetADC(adc);
}
-//_____________________________________________________________________________
-void
-AliMUONDigitizerV3::ApplyResponseToTriggerDigit(const AliMUONVDigitStore& digitStore,
- AliMUONVDigit& digit)
-{
- /// \todo add comment
-
- if ( !fTriggerEfficiency ) return;
-
- if (digit.IsEfficiencyApplied()) return;
-
- AliMUONVDigit* correspondingDigit = FindCorrespondingDigit(digitStore,digit);
-
- if (!correspondingDigit) return; //reject bad correspondences
-
- Int_t detElemId = digit.DetElemId();
-
- AliMpSegmentation* segmentation = AliMpSegmentation::Instance();
- const AliMpVSegmentation* segment[2] =
- {
- segmentation->GetMpSegmentation(detElemId,AliMp::GetCathodType(digit.Cathode())),
- segmentation->GetMpSegmentation(detElemId,AliMp::GetCathodType(correspondingDigit->Cathode()))
- };
-
- AliMpPad pad[2] =
- {
- segment[0]->PadByIndices(AliMpIntPair(digit.PadX(),digit.PadY()),kTRUE),
- segment[1]->PadByIndices(AliMpIntPair(correspondingDigit->PadX(),correspondingDigit->PadY()),kTRUE)
- };
-
- Int_t p0(1);
- if (digit.Cathode()==0) p0=0;
-
- AliMpIntPair location = pad[p0].GetLocation(0);
- Int_t nboard = location.GetFirst();
-
- Bool_t isTrig[2];
-
- fTriggerEfficiency->IsTriggered(detElemId, nboard-1,
- isTrig[0], isTrig[1]);
- digit.EfficiencyApplied(kTRUE);
- correspondingDigit->EfficiencyApplied(kTRUE);
-
- if (!isTrig[digit.Cathode()])
- {
- digit.SetCharge(0);
- }
-
- if ( &digit != correspondingDigit )
- {
- if (!isTrig[correspondingDigit->Cathode()])
- {
- correspondingDigit->SetCharge(0);
- }
- }
-}
-
//_____________________________________________________________________________
void
AliMUONDigitizerV3::ApplyResponse(const AliMUONVDigitStore& store,
{
ApplyResponseToTrackerDigit(*digit,kAddNoise);
}
- else
- {
- ApplyResponseToTriggerDigit(store,*digit);
- }
- if ( digit->Charge() > 0 )
+
+ if ( digit->ADC() > 0 || digit->Charge() > 0 )
{
filteredStore.Add(*digit,AliMUONVDigitStore::kIgnore);
}
}
}
+//_____________________________________________________________________________
+Int_t
+AliMUONDigitizerV3::DecalibrateTrackerDigit(const AliMUONVCalibParam& pedestals,
+ const AliMUONVCalibParam& gains,
+ Int_t channel,
+ Float_t charge,
+ Bool_t addNoise)
+{
+ /// Decalibrate (i.e. go from charge to adc) a tracker digit, given its
+ /// pedestal and gain parameters.
+ /// Must insure before calling that channel is valid (i.e. between 0 and
+ /// pedestals or gains->GetSize()-1, but also corresponding to a valid channel
+ /// otherwise results are not predictible...)
+
+ static const Int_t kMaxADC = (1<<12)-1; // We code the charge on a 12 bits ADC.
+
+ Float_t pedestalMean = pedestals.ValueAsFloat(channel,0);
+ Float_t pedestalSigma = pedestals.ValueAsFloat(channel,1);
+
+ Float_t a0 = gains.ValueAsFloat(channel,0);
+ Float_t a1 = gains.ValueAsFloat(channel,1);
+ Int_t thres = gains.ValueAsInt(channel,2);
+ Int_t qual = gains.ValueAsInt(channel,3);
+ if ( qual <= 0 ) return 0;
+
+ Float_t chargeThres = a0*thres;
+
+ Float_t padc(0); // (adc - ped) value
+
+ if ( charge <= chargeThres || TMath::Abs(a1) < 1E-12 )
+ {
+ // linear part only
+
+ if ( TMath::Abs(a0) > 1E-12 )
+ {
+ padc = charge/a0;
+ }
+ }
+ else
+ {
+ // linear + parabolic part
+ Double_t qt = chargeThres - charge;
+ Double_t delta = a0*a0-4*a1*qt;
+ if ( delta < 0 )
+ {
+ AliErrorClass(Form("delta=%e DE %d Manu %d Channel %d "
+ " charge %e a0 %e a1 %e thres %d ped %e pedsig %e",
+ delta,pedestals.ID0(),pedestals.ID1(),
+ channel, charge, a0, a1, thres, pedestalMean,
+ pedestalSigma));
+ }
+ else
+ {
+ delta = TMath::Sqrt(delta);
+
+ padc = ( ( -a0 + delta ) > 0 ? ( -a0 + delta ) : ( -a0 - delta ) );
+
+ padc /= 2*a1;
+
+ if ( padc < 0 )
+ {
+ if ( TMath::Abs(padc) > 1E-3)
+ {
+ // this is more than a precision problem : let's signal it !
+ AliErrorClass(Form("padc=%e DE %d Manu %d Channel %d "
+ " charge %e a0 %e a1 %e thres %d ped %e pedsig %e delta %e",
+ padc,pedestals.ID0(),pedestals.ID1(),
+ channel, charge, a0, a1, thres, pedestalMean,
+ pedestalSigma,delta));
+ }
+
+ // ok. consider we're just at thres, let it be zero.
+ padc = 0;
+ }
+
+ padc += thres;
+
+ }
+ }
+
+ Int_t adc(0);
+
+ if ( padc > 0 )
+ {
+ Float_t adcNoise = 0.0;
+
+ if ( addNoise ) adcNoise = gRandom->Gaus(0.0,pedestalSigma);
+
+ adc = TMath::Nint(padc + pedestalMean + adcNoise);
+ }
+
+ // be sure we stick to 12 bits.
+ if ( adc > kMaxADC )
+ {
+ adc = kMaxADC;
+ }
+
+ return adc;
+}
+
//_____________________________________________________________________________
void
AliMUONDigitizerV3::Exec(Option_t*)
/// Then we generate noise-only digits (for tracker only)
/// And we finally generate the trigger outputs.
+ AliCodeTimerAuto("")
+
AliDebug(1, "Running digitizer.");
if ( fManager->GetNinputs() == 0 )
return;
}
- fExecTimer.Start(kFALSE);
-
Int_t nInputFiles = fManager->GetNinputs();
AliLoader* outputLoader = GetLoader(fManager->GetOutputFolderName());
fOutputDigitStore = fDigitStore->Create();
}
+ if ( fGenerateNoisyDigits>=2 )
+ {
+ // Generate noise-only digits for trigger.
+ GenerateNoisyDigitsForTrigger(*fDigitStore);
+ }
+
ApplyResponse(*fDigitStore,*fOutputDigitStore);
if ( fGenerateNoisyDigits )
fTriggerStore->Clear();
fDigitStore->Clear();
fOutputDigitStore->Clear();
- fExecTimer.Stop();
-}
-
-//_____________________________________________________________________________
-AliMUONVDigit*
-AliMUONDigitizerV3::FindCorrespondingDigit(const AliMUONVDigitStore& digitStore,
- AliMUONVDigit& digit) const
-{
- /// Find, if it exists, the digit corresponding to digit.Hit(), in the
- /// other cathode
-
- TIter next(digitStore.CreateIterator());
- AliMUONVDigit* d;
-
- while ( ( d = static_cast<AliMUONVDigit*>(next()) ) )
- {
- if ( d->DetElemId() == digit.DetElemId() &&
- d->Hit() == digit.Hit() &&
- d->Cathode() != digit.Cathode() )
- {
- return d;
- }
- }
- return 0x0;
}
/// have a signal above the noise cut (ped+n*sigma_ped), i.e. digits
/// that are "only noise".
+ AliCodeTimerAuto("")
+
if ( !fNoiseFunction )
{
fNoiseFunction = new TF1("AliMUONDigitizerV3::fNoiseFunction","gaus",
fNoiseFunction->SetParameters(1,0,1);
}
- fGenerateNoisyDigitsTimer.Start(kFALSE);
-
for ( Int_t i = 0; i < AliMUONConstants::NTrackingCh(); ++i )
{
AliMpDEIterator it;
it.Next();
}
}
-
- fGenerateNoisyDigitsTimer.Stop();
}
//_____________________________________________________________________________
d->SetCharge(TMath::Nint(ped+pedestalMean+0.5));
d->NoiseOnly(kTRUE);
ApplyResponseToTrackerDigit(*d,kFALSE);
- if ( d->Charge() > 0 )
+ if ( d->ADC() > 0 )
{
Bool_t ok = digitStore.Add(*d,AliMUONVDigitStore::kDeny);
// this can happen (that we randomly chose a digit that is
}
}
+
+//_____________________________________________________________________________
+void
+AliMUONDigitizerV3::GenerateNoisyDigitsForTrigger(AliMUONVDigitStore& digitStore)
+{
+ /// Generate noise-only digits for one cathode of one detection element.
+ /// Called by GenerateNoisyDigits()
+
+ if ( !fNoiseFunctionTrig )
+ {
+ fNoiseFunctionTrig = new TF1("AliMUONDigitizerV3::fNoiseFunctionTrig","landau",
+ 50.,270.);
+
+ fNoiseFunctionTrig->SetParameters(3.91070e+02, 9.85026, 9.35881e-02);
+ }
+
+ AliMpPad pad[2];
+ AliMUONVDigit *d[2]={0x0};
+
+ for ( Int_t chamberId = AliMUONConstants::NTrackingCh(); chamberId < AliMUONConstants::NCh(); ++chamberId )
+ {
+
+ Int_t nofNoisyPads = 50;
+
+ Float_t r=-1, fi = 0., gx, gy, x, y, z, xg01, yg01, zg, xg02, yg02;
+ AliMpDEIterator it;
+
+ AliDebug(3,Form("Chamber %d nofNoisyPads %d",chamberId,nofNoisyPads));
+
+ for ( Int_t i = 0; i < nofNoisyPads; ++i )
+ {
+ //printf("Generating noise %i\n",i);
+ Int_t ix(-1);
+ Int_t iy(-1);
+ Bool_t isOk = kFALSE;
+ Int_t detElemId = -1;
+ do {
+ //r = gRandom->Landau(9.85026, 9.35881e-02);
+ r = fNoiseFunctionTrig->GetRandom();
+ fi = 2. * TMath::Pi() * gRandom->Rndm();
+ //printf("r = %f\tfi = %f\n", r, fi);
+ gx = r * TMath::Cos(fi);
+ gy = r * TMath::Sin(fi);
+
+ for ( it.First(chamberId); ! it.IsDone(); it.Next() ){
+ Int_t currDetElemId = it.CurrentDEId();
+ const AliMpVSegmentation* seg
+ = AliMpSegmentation::Instance()->GetMpSegmentation(currDetElemId,AliMp::GetCathodType(0));
+ if (!seg) continue;
+ Float_t deltax = seg->Dimensions().X();
+ Float_t deltay = seg->Dimensions().Y();
+ GetTransformer()->Local2Global(currDetElemId, -deltax, -deltay, 0, xg01, yg01, zg);
+ GetTransformer()->Local2Global(currDetElemId, deltax, deltay, 0, xg02, yg02, zg);
+ Float_t xg1 = xg01, xg2 = xg02, yg1 = yg01, yg2 = yg02;
+ if(xg01>xg02){
+ xg1 = xg02;
+ xg2 = xg01;
+ }
+ if(yg01>yg02){
+ yg1 = yg02;
+ yg2 = yg01;
+ }
+ if(gx>=xg1 && gx<=xg2 && gy>=yg1 && gy<=yg2){
+ detElemId = currDetElemId;
+ GetTransformer()->Global2Local(detElemId, gx, gy, 0, x, y, z);
+ pad[0] = seg->PadByPosition(TVector2(x,y),kFALSE);
+ if(!pad[0].IsValid()) continue;
+ isOk = kTRUE;
+ break;
+ }
+ } // loop on slats
+ } while ( !isOk );
+
+ const AliMpVSegmentation* seg1
+ = AliMpSegmentation::Instance()->GetMpSegmentation(detElemId,AliMp::GetCathodType(1));
+ pad[1] = seg1->PadByPosition(TVector2(x,y),kFALSE);
+
+ for ( Int_t cathode = 0; cathode < 2; ++cathode ){
+ Int_t manuId = pad[cathode].GetLocation(0).GetFirst();
+ Int_t manuChannel = pad[cathode].GetLocation(0).GetSecond();
+ d[cathode] = digitStore.CreateDigit(detElemId,manuId,manuChannel,cathode);
+ ix = pad[cathode].GetIndices().GetFirst();
+ iy = pad[cathode].GetIndices().GetSecond();
+ d[cathode]->SetPadXY(ix,iy);
+ //d[cathode].SetSignal(1);
+ //d[cathode].SetPhysicsSignal(0);
+ d[cathode]->SetCharge(1);
+ d[cathode]->NoiseOnly(kTRUE);
+ AliDebug(3,Form("Adding a pure noise digit :"));
+
+ Bool_t ok = digitStore.Add(*d[cathode],AliMUONVDigitStore::kDeny);
+ if (!ok)
+ {
+ fLogger->Log("Collision while adding TriggerNoise digit");
+ }
+ else
+ {
+ fLogger->Log("Added triggerNoise digit");
+ }
+ } //loop on cathodes
+ } // loop on noisy pads
+ } // loop on chambers
+}
+
+
//_____________________________________________________________________________
AliLoader*
AliMUONDigitizerV3::GetLoader(const TString& folderName)
Int_t runnumber = AliCDBManager::Instance()->GetRun();
+ if ( ! AliMpCDB::LoadMpSegmentation() )
+ {
+ AliFatal("Could not access mapping from OCDB !");
+ }
+
+ if ( ! AliMpCDB::LoadDDLStore() )
+ {
+ AliFatal("Could not access DDL Store from OCDB !");
+ }
+
fCalibrationData = new AliMUONCalibrationData(runnumber);
if ( !fCalibrationData->Pedestals() )
{
}
fTriggerProcessor = new AliMUONTriggerElectronics(fCalibrationData);
- if ( muon()->GetTriggerEffCells() )
- {
- fTriggerEfficiency = fCalibrationData->TriggerEfficiency();
- if ( fTriggerEfficiency )
- {
- AliDebug(1, "Will apply trigger efficiency");
- }
- else
- {
- AliFatal("I was requested to apply trigger efficiency, but I could "
- "not get it !");
- }
- }
-
AliDebug(1, Form("Will %s generate noise-only digits for tracker",
(fGenerateNoisyDigits ? "":"NOT")));
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff