// start loop on number of slots for current sdigit
for (Int_t islot = 0; islot < nslot; islot++) {
- Float_t digit[4] = {-1.,-1.,-1.,-1.}; // TOF digit variables
+ Int_t digit[4] = {-1,-1,-1,-1}; // TOF digit variables
Int_t tracknum[AliTOFSDigit::kMAXDIGITS]; // contributing tracks for the current slot
- Float_t tdc=tofsdigit->GetTdc(islot); digit[0]=tdc;
- Float_t adc=tofsdigit->GetAdc(islot); digit[1]=adc;
+ Int_t tdc=tofsdigit->GetTdc(islot); digit[0]=tdc;
+ Int_t adc=tofsdigit->GetAdc(islot); digit[1]=adc;
tracknum[0]=tofsdigit->GetTrack(islot,0);
tracknum[1]=tofsdigit->GetTrack(islot,1);
//_____________________________________________________________________________
void AliTOFDigitizer::InitDecalibration( AliTOFcalib *calib) const {
- // calib->ReadSimParFromCDB("TOF/Calib", 0); // original
calib->ReadSimParFromCDB("TOF/Calib", -1); // use AliCDBManager's number
}
//---------------------------------------------------------------------
AliTOFCal * cal= calib->GetTOFCalSimArray();
AliDebug(2,Form("Size of AliTOFCal = %i",cal->NPads()));
- for (Int_t ipad = 0 ; ipad<cal->NPads(); ipad++){
- AliTOFChannel *calChannel = cal->GetChannel(ipad);
- Float_t par[6];
- for (Int_t j = 0; j<6; j++){
- par[j]=calChannel->GetSlewPar(j);
- }
- }
// Initialize Quantities to Simulate ToT Spectra
-
TH1F * hToT= calib->GetTOFSimToT();
Int_t nbins = hToT->GetNbinsX();
Float_t delta = hToT->GetBinWidth(1);
Float_t minch = hToT->GetBinLowEdge(1);
Float_t max=0,min=0; //maximum and minimum value of the distribution
Int_t maxbin=0,minbin=0; //maximum and minimum bin of the distribution
+
for (Int_t ii=nbins; ii>0; ii--){
if (hToT->GetBinContent(ii)!= 0) {
max = maxch - (nbins-ii-1)*delta;
minbin = j;
break;}
}
+
Float_t maxToT=max;
Float_t minToT=min;
+
Float_t maxToTDistr=hToT->GetMaximum();
-
+ AliDebug (1, Form(" The minimum ToT = %f", minToT));
+ AliDebug (1, Form(" The maximum ToT = %f", maxToT));
+ AliDebug (1, Form(" The maximum peak in ToT = %f", maxToTDistr));
+
// Loop on TOF Digits
- Bool_t dbEntry=kFALSE;
+ Bool_t isToTSimulated=kFALSE;
+ Bool_t misCalibPars=kFALSE;
+ if(hToT->GetEntries()>0)isToTSimulated=kTRUE;
Int_t ndigits = fDigits->GetEntriesFast();
for (Int_t i=0;i<ndigits;i++){
AliTOFdigit * dig = (AliTOFdigit*)fDigits->At(i);
detId[2] = dig->GetStrip();
detId[3] = dig->GetPadz();
detId[4] = dig->GetPadx();
- // For Data with no Miscalibration, set ToT signal == Adc
- dig->SetToT(dig->GetAdc()/AliTOFGeometry::TdcBinWidth());
- if(hToT->GetEntries()>0){
+ dig->SetTdcND(dig->GetTdc()); // save the non decalibrated time
+ if(isToTSimulated){
+
+ //A realistic ToT Spectrum was found in input,
+ //decalibrated TOF Digits likely to be simulated....
+
+ Int_t index = calib->GetIndex(detId); // The channel index
+ AliTOFChannel *calChannel = cal->GetChannel(index); //retrieve the info
+ Float_t timedelay = calChannel->GetDelay(); //The global channel delay
+ Float_t par[6]; // time slewing parameters
+
+ //check whether we actually ask for miscalibration
+
+ if(timedelay!=0)misCalibPars=kTRUE;
+ for (Int_t j = 0; j<6; j++){
+ par[j]=calChannel->GetSlewPar(j);
+ if(par[j]!=0)misCalibPars=kTRUE;
+ }
+ AliDebug(2,Form(" Calib Pars = %f, %f, %f, %f, %f, %f ",par[0],par[1],par[2],par[3],par[4],par[5]));
+ // Now generate Realistic ToT distribution from TestBeam Data.
+ // Tot is in ns, assuming a Matching Window of 10 ns.
+
+ Float_t simToT = 0;
Float_t trix = 0;
Float_t triy = 0;
- Float_t simToT = 0;
+ Double_t timeCorr;
+ Double_t tToT;
while (simToT <= triy){
trix = gRandom->Rndm(i);
triy = gRandom->Rndm(i);
Int_t binx=hToT->FindBin(trix);
simToT=hToT->GetBinContent(binx);
}
- // Setting realistic ToT signal (only for Miscalibrated Data)
- dig->SetToT(trix/AliTOFGeometry::TdcBinWidth());
+ // the generated ToT (ns)
+ tToT= (Double_t) trix; // to apply slewing we start from ns..
+ // transform TOF signal in ns
+ AliDebug(2,Form(" The Initial Time (counts): %i: ",dig->GetTdc()));
+ AliDebug(2,Form(" Time before miscalibration (ps) %e: ",dig->GetTdc()*AliTOFGeometry::TdcBinWidth()));
+ // add slewing effect
+ timeCorr=par[0] + tToT*(par[1] +tToT*(par[2] +tToT*(par[3] +tToT*(par[4] +tToT*par[5]))));
+ AliDebug(2,Form(" The Time slewing (ns): %f: ",timeCorr));
+ // add global time shift
+ timeCorr = timeCorr + timedelay;
+ AliDebug(2,Form(" The Time Slewing+ delay (ns): %f: ",timeCorr));
+ //convert to ps
+ timeCorr*=1E3;
+ Double_t timeMis = (Double_t)(dig->GetTdc())*AliTOFGeometry::TdcBinWidth();
+ timeMis = timeMis+timeCorr;
+ AliDebug(2,Form(" The Miscalibrated time (ps): %e: ",timeMis));
+
+ // now update the digit info
+
+ Int_t tdcCorr= (Int_t)(timeMis/AliTOFGeometry::TdcBinWidth());
+ AliDebug(2,Form(" Final Time (counts): %i: ",tdcCorr));
+ // Setting Decalibrated Time signal (TDC counts)
+ dig->SetTdc(tdcCorr);
+ // Setting realistic ToT signal (TDC counts)
+ tToT*=1E3; //back to ps
+ Int_t tot=(Int_t)(tToT/AliTOFGeometry::ToTBinWidth());//(factor 1E3 as input ToT is in ns)
+ dig->SetToT(tot);
+ AliDebug(2,Form(" Final Time and ToT (counts): %i: ",dig->GetTdc(),dig->GetToT()));
+ if(tdcCorr<0){
+ AliWarning (Form(" The bad Slewed Time(TDC counts)= %i ", tdcCorr));
+ AliWarning(Form(" The bad ToT (TDC counts)= %i ", tot));
+ }
}
- Int_t index = calib->GetIndex(detId);
- AliTOFChannel *calChannel = cal->GetChannel(index);
- // time slewing parameters
- Float_t par[6];
- for (Int_t j = 0; j<6; j++){
- par[j]=calChannel->GetSlewPar(j);
- if(par[j]!=0)dbEntry=kTRUE;
+ else{
+ // For Data with no Miscalibration, set ToT signal == Adc
+ dig->SetToT((Int_t)(dig->GetAdc()/AliTOFGeometry::ToTBinWidth())); //remove the factor 10^3 just to have a reasonable ToT range for raw data simulation even in the case of non-realistic ToT distribution (n.b. fAdc is practically an arbitrary quantity, and ToT has no impact on the TOF reco for non-miscalibrated digits)
}
- // the global time shift
- Float_t timedelay = calChannel->GetDelay();
- Float_t tToT= dig->GetToT();
- dig->SetTdcND(dig->GetTdc());
- Float_t tdc = ((dig->GetTdc())*AliTOFGeometry::TdcBinWidth()+32)*1.E-3; //tof signal in ns
- // add slewing effect
- Float_t timeoffset=par[0] + tToT*(par[1] +tToT*(par[2] +tToT*(par[3] +tToT*(par[4] +tToT*par[5]))));
- Float_t timeSlewed = tdc+timeoffset;
- // add global time shift
- timeSlewed = timeSlewed + timedelay;
-
- // Setting Decalibrated Time signal
- dig->SetTdc((timeSlewed*1E3-32)/AliTOFGeometry::TdcBinWidth());
}
- if(hToT->GetEntries()<=0 || !dbEntry){
+ if(!isToTSimulated){
AliDebug(1,"Standard Production, no miscalibrated digits");
}else{
- AliDebug(1,"Miscalibrated digits");
+ if(!misCalibPars){
+ AliDebug(1,"Standard Production, no miscalibrated digits");
+ }
+ else {
+ AliDebug(1,"Simulating miscalibrated digits");
+ }
}
-
return;
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff