///*-- Author:
///////////////////////////////////////////////////////////////////////////////
// //
-// class for EMCAL time-dep calibration //
+// class for EMCAL time-dep calibration
+// - supposed to run in preprocessor
+// we use input from the following sources:
+// AliEMCALCalibTempCoeff (APD temperature coefficients),
+// AliCaloCalibSignal (LED DA), AliEMCALSensorTempArray (ELMB DCS)
+// AliEMCALCalibReference: LED amplitude and temperature info at reference time
+//
+// output/result is in AliEMCALCalibTimeDepCorrection
// //
///////////////////////////////////////////////////////////////////////////////
#include <iostream>
#include <TGraphSmooth.h>
+#include <TMath.h>
#include "AliLog.h"
#include "AliCDBEntry.h"
#include "AliCDBManager.h"
#include "AliEMCALSensorTempArray.h"
+#include "AliCaloCalibSignal.h"
+#include "AliEMCALCalibTempCoeff.h"
+#include "AliEMCALCalibReference.h"
+#include "AliEMCALCalibTimeDepCorrection.h"
#include "AliEMCALCalibTimeDep.h"
/* first a bunch of constants.. */
-const double fkSecToHour = 1.0/3600.0; // conversion factor from seconds to hours
+const double kSecToHour = 1.0/3600.0; // conversion factor from seconds to hours
-// some global variables for APD handling; assume the same for all, at least to start with
-const double fkTempSlope = 0.017; // 1.7% per deg. C, seems about right for all APDs, from studies at Catania, and by Rachid
-const double fkNormTemp = 20; // let's say that 20 degrees C is normal as default
-
-const double fkErrorCode = -999; // to indicate that something went wrong
+// some global variables for APD handling; values from Catania studies, best fit
+// TempCoeff = p0+p1*M (M=gain), where p0 and and p1 are functions of the dark current
+const double kTempCoeffP0Const = -0.903; //
+const double kTempCoeffP0Factor = -1.381e7; //
+const double kTempCoeffP1Const = -0.023; //
+const double kTempCoeffP1Factor = -4.966e5; //
+
+const double kErrorCode = -999; // to indicate that something went wrong
using namespace std;
fEndTime(0),
fMinTemp(0),
fMaxTemp(0),
+ fMinTempVariation(0),
+ fMaxTempVariation(0),
fMinTime(0),
fMaxTime(0),
- fRefTemp(fkNormTemp),
- fTempArray(NULL)
+ fTemperatureResolution(0.1), // 0.1 deg C is default
+ fMaxTemperatureDiff(5), // 5 deg C is default max diff relative to reference
+ fTimeBinsPerHour(2), // 2 30-min bins per hour is default
+ fHighLowGainFactor(16), // factor ~16 between High gain and low gain
+ fTempArray(NULL),
+ fCalibSignal(NULL),
+ fCalibTempCoeff(NULL),
+ fCalibReference(NULL),
+ fCalibTimeDepCorrection(NULL),
+ fVerbosity(0)
{
// Constructor
}
fEndTime(calibt.GetEndTime()),
fMinTemp(calibt.GetMinTemp()),
fMaxTemp(calibt.GetMaxTemp()),
+ fMinTempVariation(calibt.GetMinTempVariation()),
+ fMaxTempVariation(calibt.GetMaxTempVariation()),
fMinTime(calibt.GetMinTime()),
fMaxTime(calibt.GetMaxTime()),
- fRefTemp(calibt.GetRefTemp()),
- fTempArray(calibt.GetTempArray())
+ fTemperatureResolution(calibt.GetTemperatureResolution()),
+ fMaxTemperatureDiff(calibt.GetMaxTemperatureDiff()),
+ fTimeBinsPerHour(calibt.GetTimeBinsPerHour()),
+ fHighLowGainFactor(calibt.GetHighLowGainFactor()),
+ fTempArray(calibt.GetTempArray()),
+ fCalibSignal(calibt.GetCalibSignal()),
+ fCalibTempCoeff(calibt.GetCalibTempCoeff()),
+ fCalibReference(calibt.GetCalibReference()),
+ fCalibTimeDepCorrection(calibt.GetCalibTimeDepCorrection()),
+ fVerbosity(calibt.GetVerbosity())
{
// copy constructor
}
fEndTime = 0;
fMinTemp = 0;
fMaxTemp = 0;
+ fMinTempVariation = 0;
+ fMaxTempVariation = 0;
fMinTime = 0;
fMaxTime = 0;
- fRefTemp = fkNormTemp;
+ fTemperatureResolution = 0.1; // 0.1 deg C is default
+ fMaxTemperatureDiff = 5; // 5 deg C is default max diff relative to reference
+ fTimeBinsPerHour = 2; // 2 30-min bins per hour is default
fTempArray = NULL;
+ fCalibSignal = NULL;
+ fCalibTempCoeff = NULL;
+ fCalibReference = NULL;
+ fCalibTimeDepCorrection = NULL;
+ fVerbosity = 0;
return;
}
void AliEMCALCalibTimeDep::PrintInfo() const
{
// print some info
- cout << endl << " AliEMCALCalibTimeDep::Print() " << endl;
+ cout << endl << " AliEMCALCalibTimeDep::PrintInfo() " << endl;
// basic variables, all 'publicly available' also
cout << " VARIABLE DUMP: " << endl
<< " GetStartTime() " << GetStartTime() << endl
<< " GetEndTime() " << GetEndTime() << endl
+ << " GetMinTime() " << GetMinTime() << endl
+ << " GetMaxTime() " << GetMaxTime() << endl
<< " GetMinTemp() " << GetMinTemp() << endl
<< " GetMaxTemp() " << GetMaxTemp() << endl
- << " GetRefTemp() " << GetRefTemp() << endl;
+ << " GetMinTempVariation() " << GetMinTempVariation() << endl
+ << " GetMaxTempVariation() " << GetMaxTempVariation() << endl;
// run ranges
cout << " RUN INFO: " << endl
+ << " runnumber " << GetRunNumber() << endl
<< " length (in hours) " << GetLengthOfRunInHours() << endl
+ << " length (in bins) " << GetLengthOfRunInBins() << endl
<< " range of temperature measurements (in hours) " << GetRangeOfTempMeasureInHours()
<< " (in deg. C) " << GetRangeOfTempMeasureInDegrees()
<< endl;
- // range in correction values
- double corrAtMinTemp = GetCorrection( fMinTemp );
- double corrAtMaxTemp = GetCorrection( fMaxTemp );
- double corrMaxMinDiff = 100*(corrAtMinTemp - corrAtMaxTemp);
- cout << " CORRECTION INFO : " << endl
- << " corrAtMinTemp " << corrAtMinTemp << endl
- << " corrAtMaxTemp " << corrAtMaxTemp << endl
- << " corrMaxMinDiff (~%) [=(corrAtMin - corrAtMax)*100] "
- << corrMaxMinDiff << endl;
return;
}
+
+//________________________________________________________________
+Double_t AliEMCALCalibTimeDep::GetLengthOfRunInHours() const
+{
+ return (fEndTime - fStartTime)*kSecToHour;
+}
+
//________________________________________________________________
-double AliEMCALCalibTimeDep::GetLengthOfRunInHours() const
+Double_t AliEMCALCalibTimeDep::GetLengthOfRunInBins() const
{
- return (fEndTime - fStartTime)*fkSecToHour;
+ return (fEndTime - fStartTime)*kSecToHour*fTimeBinsPerHour;
}
+
//________________________________________________________________
-double AliEMCALCalibTimeDep::GetRangeOfTempMeasureInHours() const
+Double_t AliEMCALCalibTimeDep::GetRangeOfTempMeasureInHours() const
{
- return (fMaxTime - fMinTime)*fkSecToHour;
+ return (fMaxTime - fMinTime)*kSecToHour;
}
+
//________________________________________________________________
-double AliEMCALCalibTimeDep::GetRangeOfTempMeasureInDegrees() const
+Double_t AliEMCALCalibTimeDep::GetRangeOfTempMeasureInDegrees() const
{
return (fMaxTemp - fMinTemp);
}
//________________________________________________________________
void AliEMCALCalibTimeDep::Initialize(Int_t run,
UInt_t startTime, UInt_t endTime)
-{
+{ // setup, and get temperature info
Reset(); // start fresh
fRun = run;
// collect the needed information
GetTemperatureInfo(); // temperature readings during the run
+ ScanTemperatureInfo(); // see what the boundaries are (Min/Max Time/Temp)
return;
}
//________________________________________________________________
-double AliEMCALCalibTimeDep::GetTemperature(UInt_t timeStamp) const
-{// return estimate for all SuperModules and sensors, that had data
-
- // first convert from seconds to hours..
- double timeHour = (timeStamp - fStartTime) * fkSecToHour;
-
- double average = 0;
- int n = 0;
-
- for (int i=0; i<fTempArray->NumSensors(); i++) {
-
- AliEMCALSensorTemp *st = fTempArray->GetSensor(i);
-
- // check if we had valid data for the time that is being asked for
- if ( timeStamp>=st->GetStartTime() && timeStamp<=st->GetEndTime() ) {
- AliSplineFit *f = st->GetFit();
- if (f) { // ok, looks like we have valid data/info
- // let's check what the expected value at the time appears to be
- double val = f->Eval(timeHour);
- average += val;
- n++;
- }
- } // time
- } // loop over fTempArray
-
- if (n>0) { // some valid data was found
- average /= n;
- return average;
- }
- else { // no good data
- return fkErrorCode;
- }
-
-}
-
-//________________________________________________________________
-double AliEMCALCalibTimeDep::GetTemperatureSM(int imod, UInt_t timeStamp) const
+Double_t AliEMCALCalibTimeDep::GetTemperatureSM(int imod, UInt_t timeStamp) const
{// return estimate for this one SuperModule, if it had data
// first convert from seconds to hours..
- double timeHour = (timeStamp - fStartTime) * fkSecToHour;
+ Double_t timeHour = (timeStamp - fStartTime) * kSecToHour;
- double average = 0;
+ Double_t average = 0;
int n = 0;
for (int i=0; i<fTempArray->NumSensors(); i++) {
AliSplineFit *f = st->GetFit();
if (f) { // ok, looks like we have valid data/info
// let's check what the expected value at the time appears to be
- double val = f->Eval(timeHour);
- cout << " i " << i << " val " << val << endl;
+ Double_t val = f->Eval(timeHour);
+ if ( fVerbosity > 0 ) {
+ cout << " sensor i " << i << " val " << val << endl;
+ }
average += val;
n++;
}
return average;
}
else { // no good data
- return fkErrorCode;
+ return kErrorCode;
}
}
//________________________________________________________________
-double AliEMCALCalibTimeDep::GetTemperatureSMSensor(int imod, int isens, UInt_t timeStamp) const
-{// return estimate for this one SuperModule and sensor, if it had data
+Int_t AliEMCALCalibTimeDep::CalcCorrection()
+{ // OK, this is where the real action takes place - the heart of this class..
+ /* The philosophy is as follows:
+ 0. Init corrections to 1.0 values, and see how many correction bins we need
+ 1. Check how large temperature variations we have through the run - do we really need all the correction bias (otherwise adjust to single bin)
+ 2. try to use temperature info + APD temperature coefficient info, to estimate correction.
+ For now (from Dec 2009), we do not use LED info.
+ */
+
+ // 0: Init
+ // how many SuperModules do we have?
+ Int_t nSM = fCalibReference->GetNSuperModule();
+ // how many time-bins should we have for this run?
+ Int_t nBins = (Int_t) (GetLengthOfRunInBins() + 1); // round-up (from double to int; always at least 1)
+ Int_t binSize = (Int_t) (3600/fTimeBinsPerHour); // in seconds
+
+ // 1: get info on how much individual sensors might have changed during
+ // the run (compare max-min for each sensor separately)
+ if (fMaxTempVariation < fTemperatureResolution) {
+ nBins = 1; // just one bin needed..
+ }
+ if (nBins == 1) {
+ binSize = fEndTime - fStartTime;
+ }
+ if (fVerbosity > 1) {
+ cout << " nBins " << nBins << " binSize " << binSize << endl;
+ }
- // first convert from seconds to hours..
- double timeHour = (timeStamp - fStartTime) * fkSecToHour;
+ // set up a reasonable default (correction = 1.0)
+ fCalibTimeDepCorrection = new AliEMCALCalibTimeDepCorrection(nSM);
+ fCalibTimeDepCorrection->InitCorrection(nSM, nBins, 1.0);
+ fCalibTimeDepCorrection->SetStartTime(fStartTime);
+ fCalibTimeDepCorrection->SetNTimeBins(nBins);
+ fCalibTimeDepCorrection->SetTimeBinSize(binSize);
- for (int i=0; i<fTempArray->NumSensors(); i++) {
-
- AliEMCALSensorTemp *st = fTempArray->GetSensor(i);
- int module = st->GetSector()*2 + st->GetSide();
- if ( module == imod && st->GetNum()==isens ) { // right module, and sensor
- // check if we had valid data for the time that is being asked for
- if ( timeStamp>=st->GetStartTime() && timeStamp<=st->GetEndTime() ) {
- AliSplineFit *f = st->GetFit();
- if (f) { // ok, looks like we have valid data/info
- // let's check what the expected value at the time appears to be
- double val = f->Eval(timeHour);
-
- return val; // no point to move further in for loop, we have found the sensor we were looking for
- }
- } // time
- }
-
- } // loop over fTempArray
-
- // if we made it all here, it means that we didn't find the sensor we were looking for
- // i.e. no good data
- return fkErrorCode;
+ // 2: try with Temperature correction
+ Int_t nRemaining = CalcTemperatureCorrection(nSM, nBins, binSize);
+ return nRemaining;
}
+
//________________________________________________________________
-double AliEMCALCalibTimeDep::GetCorrection(double temperature) const
-{ // gain decreases with increasing temperature
- double gain = (1.0 - (temperature-fRefTemp)*fkTempSlope);
- // i.e. multiplicative correction to ADC increases with increasing temperature
- return 1.0/gain;
+Double_t AliEMCALCalibTimeDep::GetTempCoeff(Double_t IDark, Double_t M) const
+{ // estimate the Temperature Coefficient, based on the dark current (IDark)
+ // and the gain (M), based on Catania parameterizations
+
+ Double_t dP0 = kTempCoeffP0Const + kTempCoeffP0Factor * IDark;
+ Double_t dP1 = kTempCoeffP1Const + kTempCoeffP1Factor * IDark;
+
+ Double_t dTC = dP0 + dP1*M;
+ // from % numbers to regular ones..:
+ dTC *= 0.01;
+
+ return TMath::Abs(dTC); // return the absolute value, to avoid any sign confusion
}
-/* Next comes the method that does the work in picking up all the needed info..*/
+/* Next come the methods that do the work in picking up all the needed info..*/
//________________________________________________________________
void AliEMCALCalibTimeDep::GetTemperatureInfo()
{
return;
}
+
+//________________________________________________________________
+Int_t AliEMCALCalibTimeDep::ScanTemperatureInfo()
+{// assign max/min time and temperature values
+
+ fMinTemp = 999; // init to some large value (999 deg C)
+ fMaxTemp = 0;
+ fMinTempVariation = 999; // init to some large value (999 deg C)
+ fMaxTempVariation = 0;
+ fMinTime = 2147483647; // init to a large value in the far future (0x7fffffff), year 2038 times..
+ fMaxTime = 0;
+
+ Int_t n = 0; // number of valid readings
+
+ for (int i=0; i<fTempArray->NumSensors(); i++) {
+
+ AliEMCALSensorTemp *st = fTempArray->GetSensor(i);
+ if ( st->GetStartTime() == 0 ) { // no valid data
+ continue;
+ }
+
+ // check time ranges
+ if (fMinTime > st->GetStartTime()) { fMinTime = st->GetStartTime(); }
+ if (fMaxTime < st->GetEndTime()) { fMaxTime = st->GetEndTime(); }
+
+ // check temperature ranges
+ AliSplineFit *f = st->GetFit();
+
+ if (f) { // ok, looks like we have valid data/info
+ int np = f->GetKnots();
+ Double_t *y0 = f->GetY0();
+ // min and max values within the single sensor
+ Double_t min = 999;
+ Double_t max = 0;
+ for (int ip=0; ip<np; ip++) {
+ if (min > y0[ip]) { min = y0[ip]; }
+ if (max < y0[ip]) { max = y0[ip]; }
+ }
+ if (fMinTemp > min) { fMinTemp = min; }
+ if (fMaxTemp < max) { fMaxTemp = max; }
+ Double_t variation = max - min;
+ if (fMinTempVariation > variation) { fMinTempVariation = variation; }
+ if (fMaxTempVariation < variation) { fMaxTempVariation = variation; }
+
+ n++;
+ }
+ } // loop over fTempArray
+
+ if (n>0) { // some valid data was found
+ return n;
+ }
+ else { // no good data
+ return (Int_t) kErrorCode;
+ }
+
+}
+
+//________________________________________________________________
+void AliEMCALCalibTimeDep::GetCalibSignalInfo()
+{
+ // pick up Preprocessor output, based on fRun (most recent version)
+ AliCDBEntry* entry = AliCDBManager::Instance()->Get("EMCAL/Calib/LED", fRun);
+ if (entry) {
+ fCalibSignal = (AliCaloCalibSignal *) entry->GetObject();
+ }
+
+ if (fCalibSignal) {
+ AliInfo( Form("CalibSignal: NEvents %d NAcceptedEvents %d Entries %lld AvgEntries LEDRefEntries %lld LEDRefEntries %lld, LEDRefAvgEntries %lld",
+ fCalibSignal->GetNEvents(), fCalibSignal->GetNAcceptedEvents(),
+ fCalibSignal->GetTreeAmpVsTime()->GetEntries(),
+ fCalibSignal->GetTreeAvgAmpVsTime()->GetEntries(),
+ fCalibSignal->GetTreeLEDAmpVsTime()->GetEntries(),
+ fCalibSignal->GetTreeLEDAvgAmpVsTime()->GetEntries() ) );
+ }
+ else {
+ AliWarning( Form("AliCaloCalibSignal not found!") );
+ }
+
+ return;
+}
+
+//________________________________________________________________
+void AliEMCALCalibTimeDep::GetCalibTempCoeffInfo()
+{
+ // pick up Preprocessor output, based on fRun (most recent version)
+ AliCDBEntry* entry = AliCDBManager::Instance()->Get("EMCAL/Calib/TempCoeff", fRun);
+ // stored object should be a TTree; read the info
+ if (entry) {
+ fCalibTempCoeff = (AliEMCALCalibTempCoeff *) entry->GetObject();
+ }
+
+ if (fCalibTempCoeff) {
+ AliInfo( Form("CalibTempCoeff: NSuperModule %d ", fCalibTempCoeff->GetNSuperModule() ) );
+ }
+ else {
+ AliWarning( Form("AliEMCALCalibTempCoeff not found!") );
+ }
+
+ return;
+}
+
+//________________________________________________________________
+void AliEMCALCalibTimeDep::GetCalibReferenceInfo()
+{
+ // pick up Preprocessor output, based on fRun (most recent version)
+ AliCDBEntry* entry = AliCDBManager::Instance()->Get("EMCAL/Calib/Reference", fRun);
+ if (entry) {
+ fCalibReference = (AliEMCALCalibReference *) entry->GetObject();
+ }
+
+ if (fCalibReference) {
+ AliInfo( Form("CalibReference: NSuperModule %d ", fCalibReference->GetNSuperModule() ) );
+ }
+ else {
+ AliWarning( Form("AliEMCALCalibReference not found!") );
+ }
+
+ return;
+}
+
+//________________________________________________________________
+Int_t AliEMCALCalibTimeDep::CalcLEDCorrection(Int_t nSM, Int_t nBins)
+{// Construct normalized ratios R(t)=LED(t)/LEDRef(t), for current time T and calibration time t0
+ // The correction factor we keep is c(T) = R(t0)/R(T)
+ // T info from fCalibSignal, t0 info from fCalibReference
+
+ // NOTE: for now we don't use the RMS info either from fCalibSignal or fCalibReference
+ // but one could upgrade this in the future
+ Int_t nRemaining = 0; // we count the towers for which we could not get valid data
+
+ // sanity check; same SuperModule indices for corrections as for regular calibrations
+ for (int i = 0; i < nSM; i++) {
+ AliEMCALSuperModuleCalibReference * dataCalibReference = fCalibReference->GetSuperModuleCalibReferenceNum(i);
+ AliEMCALSuperModuleCalibTimeDepCorrection * dataCalibTimeDepCorrection = fCalibTimeDepCorrection->GetSuperModuleCalibTimeDepCorrectionNum(i);
+
+ int iSMRef = dataCalibReference->GetSuperModuleNum();
+ int iSMCorr = dataCalibTimeDepCorrection->GetSuperModuleNum();
+ if (iSMRef != iSMCorr) {
+ AliWarning( Form("AliEMCALCalibTimeDep - SuperModule index mismatch: %d != %d", iSMRef, iSMCorr) );
+ nRemaining = nSM * AliEMCALGeoParams::fgkEMCALCols * AliEMCALGeoParams::fgkEMCALRows * nBins;
+ return nRemaining;
+ }
+ }
+
+ int iSM = 0;
+ int iCol = 0;
+ int iRow = 0;
+ int iStrip = 0;
+ int iGain = 0;
+
+ // The fCalibSignal info is stored in TTrees
+ // Note that the time-bins for the TTree's may not exactly match with our correction time bins
+ int timeDiff = fCalibSignal->GetStartTime() - fStartTime; // in seconds
+ // fCalibSignal time info in seconds: Hour/kSecToHour
+ // corrected for startTime difference: Hour/kSecToHour + timeDiff
+ // converted into a time-bin we use: (Hour + timeDiff*kSecToHour) * fTimeBinsPerHour
+
+ // values for R(T), size of TArray = nBins
+ // the [2] dimension below is for the low or high gain
+ TArrayF ampT[AliEMCALGeoParams::fgkEMCALModules][AliEMCALGeoParams::fgkEMCALCols][AliEMCALGeoParams::fgkEMCALRows][2];
+ TArrayF nT[AliEMCALGeoParams::fgkEMCALModules][AliEMCALGeoParams::fgkEMCALCols][AliEMCALGeoParams::fgkEMCALRows][2];
+ TArrayF ampLEDRefT[AliEMCALGeoParams::fgkEMCALModules][AliEMCALGeoParams::fgkEMCALLEDRefs][2];
+ TArrayF nLEDRefT[AliEMCALGeoParams::fgkEMCALModules][AliEMCALGeoParams::fgkEMCALLEDRefs][2];
+
+ // set up TArray's first
+ for (iSM = 0; iSM < AliEMCALGeoParams::fgkEMCALModules; iSM++) {
+ for (iCol = 0; iCol < AliEMCALGeoParams::fgkEMCALCols; iCol++) {
+ for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) {
+ for (iGain = 0; iGain < 2; iGain++) {
+ // length of arrays
+ ampT[iSM][iCol][iRow][iGain].Set(nBins);
+ nT[iSM][iCol][iRow][iGain].Set(nBins);
+ // content of arrys
+ for (int j = 0; j < nBins; j++) {
+ ampT[iSM][iCol][iRow][iGain].AddAt(0, j);
+ nT[iSM][iCol][iRow][iGain].AddAt(0, j);
+ }
+ }
+ }
+ }//iCol
+ for (iStrip = 0; iStrip < AliEMCALGeoParams::fgkEMCALLEDRefs; iStrip++) {
+ for (iGain = 0; iGain < 2; iGain++) {
+ // length of arrays
+ ampLEDRefT[iSM][iStrip][iGain].Set(nBins);
+ nLEDRefT[iSM][iStrip][iGain].Set(nBins);
+ // content of arrys
+ for (int j = 0; j < nBins; j++) {
+ ampLEDRefT[iSM][iStrip][iGain].AddAt(0, j);
+ nLEDRefT[iSM][iStrip][iGain].AddAt(0, j);
+ }
+ }
+ }//iStrip
+ }
+
+ // OK, now loop over the TTrees and fill the arrays needed for R(T)
+ TTree *treeAvg = fCalibSignal->GetTreeAvgAmpVsTime();
+ TTree *treeLEDRefAvg = fCalibSignal->GetTreeAvgAmpVsTime();
+
+ int iChannelNum = 0; // for regular towers
+ int iRefNum = 0; // for LED
+ double dHour = 0;
+ double dAvgAmp = 0;
+
+ treeAvg->SetBranchAddress("fChannelNum", &iChannelNum);
+ treeAvg->SetBranchAddress("fHour", &dHour);
+ treeAvg->SetBranchAddress("fAvgAmp",&dAvgAmp);
+
+ int iBin = 0;
+ // counters for how many values were seen per SuperModule
+ int nCount[AliEMCALGeoParams::fgkEMCALModules] = {0};
+ int nCountLEDRef[AliEMCALGeoParams::fgkEMCALModules] = {0};
+
+ for (int ient=0; ient<treeAvg->GetEntries(); ient++) {
+ treeAvg->GetEntry(ient);
+ // figure out where this info comes from
+ fCalibSignal->DecodeChannelNum(iChannelNum, &iSM, &iCol, &iRow, &iGain);
+ iBin = (int) ( (dHour + timeDiff*kSecToHour) * fTimeBinsPerHour ); // CHECK!!!
+ // add value in the arrays
+ ampT[iSM][iCol][iRow][iGain].AddAt( ampT[iSM][iCol][iRow][iGain].At(iBin)+dAvgAmp, iBin );
+ nT[iSM][iCol][iRow][iGain].AddAt( nT[iSM][iCol][iRow][iGain].At(iBin)+1, iBin );
+ nCount[iSM]++;
+ }
+
+ treeLEDRefAvg->SetBranchAddress("fRefNum", &iRefNum);
+ treeLEDRefAvg->SetBranchAddress("fHour", &dHour);
+ treeLEDRefAvg->SetBranchAddress("fAvgAmp",&dAvgAmp);
+
+ for (int ient=0; ient<treeLEDRefAvg->GetEntries(); ient++) {
+ treeLEDRefAvg->GetEntry(ient);
+ // figure out where this info comes from
+ fCalibSignal->DecodeRefNum(iRefNum, &iSM, &iStrip, &iGain);
+ iBin = (int) ( (dHour + timeDiff*kSecToHour) * fTimeBinsPerHour ); // CHECK!!!
+ // add value in the arrays
+ ampLEDRefT[iSM][iStrip][iGain].AddAt( ampLEDRefT[iSM][iStrip][iGain].At(iBin)+dAvgAmp, iBin );
+ nLEDRefT[iSM][iStrip][iGain].AddAt( nLEDRefT[iSM][iStrip][iGain].At(iBin)+1, iBin );
+ nCountLEDRef[iSM]++;
+ }
+
+ // Normalize TArray values, and calculate average also
+ Float_t norm = 0; // extra var, for readability
+
+ for (iSM = 0; iSM < AliEMCALGeoParams::fgkEMCALModules; iSM++) {
+ if (nCount[iSM]>0 && nCountLEDRef[iSM]>0) { // avoid SuperModules with no data..
+ for (iCol = 0; iCol < AliEMCALGeoParams::fgkEMCALCols; iCol++) {
+ // iStrip = AliEMCALGeoParams::GetStripModule(iSM, iCol);
+ iStrip = (iSM%2==0) ? iCol/2 : AliEMCALGeoParams::fgkEMCALLEDRefs - 1 - iCol/2; //TMP, FIXME
+ for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) {
+ for (iGain = 0; iGain < 2; iGain++) {
+ // content of arrys
+ for (int j = 0; j < nBins; j++) {
+ if (nT[iSM][iCol][iRow][iGain].At(j) > 0) {
+ norm = ampT[iSM][iCol][iRow][iGain].At(j) / nT[iSM][iCol][iRow][iGain].At(j);
+ ampT[iSM][iCol][iRow][iGain].AddAt(norm, j); // AddAt = SetAt
+ }
+ }
+ }
+ }
+ }//iCol
+ for (iStrip = 0; iStrip < AliEMCALGeoParams::fgkEMCALLEDRefs; iStrip++) {
+ for (iGain = 0; iGain < 2; iGain++) {
+ for (int j = 0; j < nBins; j++) {
+ if (nLEDRefT[iSM][iStrip][iGain].At(j) > 0) {
+ norm = ampLEDRefT[iSM][iStrip][iGain].At(j) / nLEDRefT[iSM][iStrip][iGain].At(j);
+ ampLEDRefT[iSM][iStrip][iGain].AddAt(norm, j); // AddAt = SetAt
+ }
+ }
+ }
+ }//iStrip
+ }
+ } // iSM
+
+
+ // Calculate correction values, and store them
+ // set kErrorCode values for those that could not be set
+
+ Float_t ratiot0 = 0;
+ Float_t ratioT = 0;
+ Float_t correction = 0; // c(T) = R(t0)/R(T)
+ Int_t refGain = 0; // typically use low gain for LED reference amplitude (high gain typically well beyond saturation)
+
+ for (int i = 0; i < nSM; i++) {
+ AliEMCALSuperModuleCalibReference * dataCalibReference = fCalibReference->GetSuperModuleCalibReferenceNum(i);
+ AliEMCALSuperModuleCalibTimeDepCorrection * dataCalibTimeDepCorrection = fCalibTimeDepCorrection->GetSuperModuleCalibTimeDepCorrectionNum(i);
+ iSM = dataCalibReference->GetSuperModuleNum();
+
+ for (iCol = 0; iCol < AliEMCALGeoParams::fgkEMCALCols; iCol++) {
+ // iStrip = AliEMCALGeoParams::GetStripModule(iSM, iCol);
+ iStrip = (iSM%2==0) ? iCol/2 : AliEMCALGeoParams::fgkEMCALLEDRefs - 1 - iCol/2; //TMP, FIXME
+ refGain = dataCalibReference->GetLEDRefHighLow(iStrip); // LED reference gain value used for reference calibration
+
+ for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) {
+
+ // Calc. R(t0):
+ AliEMCALCalibReferenceVal * refVal = dataCalibReference->GetAPDVal(iCol, iRow);
+ iGain = refVal->GetHighLow(); // gain value used for reference calibration
+ // valid amplitude values should be larger than 0
+ if (refVal->GetLEDAmp()>0 && dataCalibReference->GetLEDRefAmp(iStrip)>0) {
+ ratiot0 = refVal->GetLEDAmp() / dataCalibReference->GetLEDRefAmp(iStrip);
+ }
+ else {
+ ratiot0 = kErrorCode;
+ }
+
+ // Calc. R(T)
+ for (int j = 0; j < nBins; j++) {
+
+ // calculate R(T) also; first try with individual tower:
+ // same gain as for reference calibration is the default
+ if (ampT[iSM][iCol][iRow][iGain].At(j)>0 && ampLEDRefT[iSM][iStrip][refGain].At(j)>0) {
+ // looks like valid data with the right gain combination
+ ratioT = ampT[iSM][iCol][iRow][iGain].At(j) / ampLEDRefT[iSM][iStrip][refGain].At(j);
+
+ // if data appears to be saturated, and we are in high gain, then try with low gain instead
+ int newGain = iGain;
+ int newRefGain = refGain;
+ if ( ampT[iSM][iCol][iRow][iGain].At(j)>AliEMCALGeoParams::fgkOverflowCut && iGain==1 ) {
+ newGain = 0;
+ }
+ if ( ampLEDRefT[iSM][iStrip][refGain].At(j)>AliEMCALGeoParams::fgkOverflowCut && refGain==1 ) {
+ newRefGain = 0;
+ }
+
+ if (newGain!=iGain || newRefGain!=refGain) {
+ // compensate for using different gain than in the reference calibration
+ // we may need to have a custom H/L ratio value for each tower
+ // later, but for now just use a common value, as the rest of the code does..
+ ratioT = ampT[iSM][iCol][iRow][newGain].At(j) / ampLEDRefT[iSM][iStrip][newRefGain].At(j);
+
+ if (newGain<iGain) {
+ ratioT *= fHighLowGainFactor;
+ }
+ else if (newRefGain<refGain) {
+ ratioT /= fHighLowGainFactor;
+ }
+ }
+ }
+ else {
+ ratioT = kErrorCode;
+ }
+
+ // Calc. correction factor
+ if (ratiot0>0 && ratioT>0) {
+ correction = ratiot0/ratioT;
+ }
+ else {
+ correction = kErrorCode;
+ nRemaining++;
+ }
+
+ // Store the value
+ dataCalibTimeDepCorrection->GetCorrection(iCol,iRow)->AddAt(correction, j);
+ /* Check that
+ fTimeDepCorrection->SetCorrection(i, iCol, iRow, j, correction);
+ also works OK */
+ } // nBins
+ }
+ }
+ }
+
+ nRemaining = CalcLEDCorrectionStripBasis(nSM, nBins);
+ return nRemaining;
+}
+
+//________________________________________________________________
+Int_t AliEMCALCalibTimeDep::CalcLEDCorrectionStripBasis(Int_t nSM, Int_t nBins)
+{ // use averages for each strip if no good values exist for some single tower
+
+ // go over fTimeDepCorrection info
+ Int_t nRemaining = 0; // we count the towers for which we could not get valid data
+
+ // for calculating StripAverage info
+ int nValidTower = 0;
+ Float_t stripAverage = 0;
+ Float_t val = 0;
+
+ int iSM = 0;
+ int iCol = 0;
+ int iRow = 0;
+ int iStrip = 0;
+ int firstCol = 0;
+ int lastCol = 0;
+
+ for (int i = 0; i < nSM; i++) {
+ AliEMCALSuperModuleCalibTimeDepCorrection * dataCalibTimeDepCorrection = fCalibTimeDepCorrection->GetSuperModuleCalibTimeDepCorrectionNum(i);
+ iSM = dataCalibTimeDepCorrection->GetSuperModuleNum();
+
+ for (int j = 0; j < nBins; j++) {
+
+ nValidTower = 0;
+ stripAverage = 0;
+
+ for (iStrip = 0; iStrip < AliEMCALGeoParams::fgkEMCALLEDRefs; iStrip++) {
+ firstCol = iStrip*2;
+ if ((iSM%2)==1) { // C side
+ firstCol = (AliEMCALGeoParams::fgkEMCALLEDRefs-1 - iStrip)*2;
+ }
+ lastCol = firstCol+1;
+
+ for (iCol = firstCol; iCol <= lastCol; iCol++) {
+ for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) {
+ val = dataCalibTimeDepCorrection->GetCorrection(iCol,iRow)->At(j);
+ if (val>0) { // valid value; error code is negative
+ stripAverage += val;
+ nValidTower++;
+ }
+ }
+ }
+
+ // calc average over strip
+ if (nValidTower>0) {
+ stripAverage /= nValidTower;
+ for (iCol = firstCol; iCol <= lastCol; iCol++) {
+ for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) {
+ val = dataCalibTimeDepCorrection->GetCorrection(iCol,iRow)->At(j);
+ if (val<0) { // invalid value; error code is negative
+ dataCalibTimeDepCorrection->GetCorrection(iCol,iRow)->AddAt(val, j);
+ }
+ }
+ }
+ }
+ else { // could not fill in unvalid entries
+ nRemaining += 2*AliEMCALGeoParams::fgkEMCALRows;
+ }
+
+ } // iStrip
+ } // j, bins
+ } // iSM
+
+ return nRemaining;
+}
+
+//________________________________________________________________
+Int_t AliEMCALCalibTimeDep::CalcTemperatureCorrection(Int_t nSM, Int_t nBins, Int_t binSize)
+{ // OK, so we didn't have valid LED data that allowed us to do the correction only
+ // with that info.
+ // So, instead we'll rely on the temperature info and try to do the correction
+ // based on that instead.
+ // For this, we'll need the info from 3 classes (+temperature array), and output the values in a 4th class
+ Int_t nRemaining = 0;
+
+ int iSM = 0;
+ int iCol = 0;
+ int iRow = 0;
+
+ Double_t dTempCoeff[AliEMCALGeoParams::fgkEMCALCols][AliEMCALGeoParams::fgkEMCALRows];
+ memset(dTempCoeff, 0, sizeof(dTempCoeff));
+ Double_t correction = 0;
+ Double_t secondsPerBin = (Double_t) binSize;
+
+ for (int i = 0; i < nSM; i++) {
+ AliEMCALSuperModuleCalibTimeDepCorrection * dataCalibTimeDepCorrection = fCalibTimeDepCorrection->GetSuperModuleCalibTimeDepCorrectionNum(i);
+ iSM = dataCalibTimeDepCorrection->GetSuperModuleNum();
+
+ AliEMCALSuperModuleCalibReference * dataCalibReference = fCalibReference->GetSuperModuleCalibReferenceNum(iSM);
+ AliEMCALSuperModuleCalibTempCoeff * dataCalibTempCoeff = fCalibTempCoeff->GetSuperModuleCalibTempCoeffNum(iSM);
+
+ // first get CalibTempCoeff info
+ for (iCol = 0; iCol < AliEMCALGeoParams::fgkEMCALCols; iCol++) {
+ for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) {
+
+ dTempCoeff[iCol][iRow] = dataCalibTempCoeff->GetTC(iCol, iRow);
+ if (fVerbosity > 1) {
+ cout << " iSM " << iSM << " iCol " << iCol << " iRow " << iRow
+ << " dTempCoeff " << dTempCoeff[iCol][iRow] << endl;
+ }
+ }
+ }
+
+ // figure out what the reference temperature is, from fCalibReference
+ Double_t referenceTemperature = 0;
+ int nVal = 0;
+ for (int iSensor = 0; iSensor<AliEMCALGeoParams::fgkEMCALTempSensors ; iSensor++) {
+ if (dataCalibReference->GetTemperature(iSensor)>0) { // hopefully OK value
+ referenceTemperature += dataCalibReference->GetTemperature(iSensor);
+ nVal++;
+ }
+ }
+
+ if (nVal>0) {
+ referenceTemperature /= nVal; // valid values exist, we can look into corrections
+
+ for (int j = 0; j < nBins; j++) {
+ // what is the timestamp in the middle of this bin? (0.5 is for middle of bin)
+ UInt_t timeStamp = fStartTime + (UInt_t)((j+0.5)*secondsPerBin);
+ // get the temperature at this time; use average over whole SM for now (TO BE CHECKED LATER - if we can do better with finer grained info)
+ Double_t dSMTemperature = GetTemperatureSM(iSM, timeStamp);
+
+ Double_t temperatureDiff = referenceTemperature - dSMTemperature; // ref - new
+ if (fVerbosity > 0) {
+ cout << " referenceTemperature " << referenceTemperature
+ << " dSMTemperature " << dSMTemperature
+ << " temperatureDiff " << temperatureDiff
+ << endl;
+ }
+ // if the new temperature is higher than the old/reference one (diff<0), then the gain has gone down
+ // if the new temperature is lower than the old/reference one (diff>0), then the gain has gone up
+ // dTempCoeff is a (unsigned) factor describing how many % the gain
+ // changes with a degree change.
+ // i.e. the product temperatureDiff * dTempCoeff increase when the gain goes up
+ // The correction we want to keep is what we should multiply our ADC value with as a function
+ // of time, i.e. the inverse of the gain change..
+ if ( (TMath::Abs(temperatureDiff)>fTemperatureResolution)
+ && (TMath::Abs(temperatureDiff)<fMaxTemperatureDiff) ) {
+ // significant enough difference that we need to consider it, and also not unreasonably large
+
+ // loop over all towers; effect of temperature change will depend on gain for this tower
+ for (iCol = 0; iCol < AliEMCALGeoParams::fgkEMCALCols; iCol++) {
+ for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) {
+
+ // the correction should be inverse of modification in gain: (see discussion above)
+ // modification in gain: 1.0 + (temperatureDiff * dTempCoeff[iCol][iRow])*0.01;
+ // 1/(1+x) ~= 1 - x for small x, i.e. we arrive at:
+ correction = 1.0 - (temperatureDiff * dTempCoeff[iCol][iRow]);
+ dataCalibTimeDepCorrection->GetCorrection(iCol,iRow)->AddAt(correction, j);
+ if (fVerbosity > 1) {
+ cout << " iSM " << iSM
+ << " iCol " << iCol
+ << " iRow " << iRow
+ << " j " << j
+ << " correction " << correction
+ << endl;
+ }
+ }
+ }
+
+ } // if noteworthy temperature change
+ else { // just set correction values to 1.0
+ correction = 1;
+ for (iCol = 0; iCol < AliEMCALGeoParams::fgkEMCALCols; iCol++) {
+ for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) {
+ dataCalibTimeDepCorrection->GetCorrection(iCol,iRow)->AddAt(correction, j);
+ }
+ }
+ } // else
+ } // j, Bins
+
+ } // if reference temperature exist
+ else { // could not do the needed check.. signal that in the return code
+ nRemaining += AliEMCALGeoParams::fgkEMCALCols * AliEMCALGeoParams::fgkEMCALRows * nBins;
+ }
+ } // iSM
+
+ return nRemaining;
+}
+
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