// class for EMCAL time-dep calibration
// - supposed to run in preprocessor
// we use input from the following sources:
-// AliEMCALBiasAPD (bias values), AliEMCALCalibMapAPD (APD calibration and location info),
+// AliEMCALCalibTempCoeff (APD temperature coefficients),
// AliCaloCalibSignal (LED DA), AliEMCALSensorTempArray (ELMB DCS)
// AliEMCALCalibReference: LED amplitude and temperature info at reference time
//
#include <iostream>
#include <TGraphSmooth.h>
+#include <TMath.h>
#include "AliLog.h"
#include "AliCDBEntry.h"
#include "AliCDBManager.h"
#include "AliEMCALSensorTempArray.h"
#include "AliCaloCalibSignal.h"
-#include "AliEMCALBiasAPD.h"
-#include "AliEMCALCalibMapAPD.h"
+#include "AliEMCALCalibTempCoeff.h"
#include "AliEMCALCalibReference.h"
#include "AliEMCALCalibTimeDepCorrection.h"
#include "AliEMCALCalibTimeDep.h"
const double kTempCoeffP1Const = -0.023; //
const double kTempCoeffP1Factor = -4.966e5; //
+const double kTempMaxDiffMedian = 2; // Temperature values should not be further away from median value within SM when considered in the average calc.
+
const double kErrorCode = -999; // to indicate that something went wrong
using namespace std;
fEndTime(0),
fMinTemp(0),
fMaxTemp(0),
+ fMinTempVariation(0),
+ fMaxTempVariation(0),
+ fMinTempValid(15),
+ fMaxTempValid(35),
fMinTime(0),
fMaxTime(0),
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),
- fBiasAPD(NULL),
- fCalibMapAPD(NULL),
+ fCalibTempCoeff(NULL),
fCalibReference(NULL),
- fCalibTimeDepCorrection(NULL)
+ fCalibTimeDepCorrection(NULL),
+ fVerbosity(0)
{
// Constructor
}
fEndTime(calibt.GetEndTime()),
fMinTemp(calibt.GetMinTemp()),
fMaxTemp(calibt.GetMaxTemp()),
+ fMinTempVariation(calibt.GetMinTempVariation()),
+ fMaxTempVariation(calibt.GetMaxTempVariation()),
+ fMinTempValid(calibt.GetMinTempValid()),
+ fMaxTempValid(calibt.GetMaxTempValid()),
fMinTime(calibt.GetMinTime()),
fMaxTime(calibt.GetMaxTime()),
fTemperatureResolution(calibt.GetTemperatureResolution()),
+ fMaxTemperatureDiff(calibt.GetMaxTemperatureDiff()),
fTimeBinsPerHour(calibt.GetTimeBinsPerHour()),
fHighLowGainFactor(calibt.GetHighLowGainFactor()),
fTempArray(calibt.GetTempArray()),
fCalibSignal(calibt.GetCalibSignal()),
- fBiasAPD(calibt.GetBiasAPD()),
- fCalibMapAPD(calibt.GetCalibMapAPD()),
+ fCalibTempCoeff(calibt.GetCalibTempCoeff()),
fCalibReference(calibt.GetCalibReference()),
- fCalibTimeDepCorrection(calibt.GetCalibTimeDepCorrection())
+ fCalibTimeDepCorrection(calibt.GetCalibTimeDepCorrection()),
+ fVerbosity(calibt.GetVerbosity())
{
// copy constructor
}
fEndTime = 0;
fMinTemp = 0;
fMaxTemp = 0;
+ fMinTempVariation = 0;
+ fMaxTempVariation = 0;
+ fMinTempValid = 15;
+ fMaxTempValid = 35;
fMinTime = 0;
fMaxTime = 0;
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;
- fBiasAPD = NULL;
- fCalibMapAPD = NULL;
+ fCalibTempCoeff = NULL;
fCalibReference = NULL;
fCalibTimeDepCorrection = NULL;
+ fVerbosity = 0;
return;
}
cout << " VARIABLE DUMP: " << endl
<< " GetStartTime() " << GetStartTime() << endl
<< " GetEndTime() " << GetEndTime() << endl
+ << " GetMinTime() " << GetMinTime() << endl
+ << " GetMaxTime() " << GetMaxTime() << endl
<< " GetMinTemp() " << GetMinTemp() << endl
- << " GetMaxTemp() " << GetMaxTemp() << endl;
+ << " GetMaxTemp() " << GetMaxTemp() << endl
+ << " GetMinTempVariation() " << GetMinTempVariation() << endl
+ << " GetMaxTempVariation() " << GetMaxTempVariation() << endl
+ << " GetTemperatureResolution() " << GetTemperatureResolution() << 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;
return;
}
-//________________________________________________________________
-Double_t AliEMCALCalibTimeDep::GetTemperature(UInt_t timeStamp) const
-{// return estimate for all SuperModules and sensors, that had data
-
- // first convert from seconds to hours..
- Double_t timeHour = (timeStamp - fStartTime) * kSecToHour;
-
- Double_t 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_t 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 kErrorCode;
- }
-
-}
-
//________________________________________________________________
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_t timeHour = (timeStamp - fStartTime) * kSecToHour;
- Double_t average = 0;
int n = 0;
+ Double_t valArr[8]={0}; // 8 sensors per SM
for (int i=0; i<fTempArray->NumSensors(); i++) {
if (f) { // ok, looks like we have valid data/info
// let's check what the expected value at the time appears to be
Double_t val = f->Eval(timeHour);
- cout << " i " << i << " val " << val << endl;
- average += val;
- n++;
+ if ( fVerbosity > 0 ) {
+ cout << " sensor i " << i << " val " << val << endl;
+ }
+ if (val>fMinTempValid && val<fMaxTempValid && n<8) {
+ valArr[n] = val;
+ n++;
+ }
}
} // time
}
} // loop over fTempArray
if (n>0) { // some valid data was found
- average /= n;
- return average;
+ Double_t median = TMath::Median(n, valArr);
+ Double_t average = 0;
+ Int_t nval = 0;
+ for (int is=0; is<n; is++) {
+ if (TMath::Abs(valArr[is] - median) < kTempMaxDiffMedian) {
+ average += valArr[is];
+ nval++;
+ }
+ }
+ //cout << " n " << n << " nval " << nval << " median " << median << endl;
+ if (nval > 0) {
+ average /= nval;
+ //cout << " average " << average << endl;
+ return average;
+ }
+ else { // this case should not happen, but kept for completeness (coverity etc)
+ return median;
+ }
}
else { // no good data
return kErrorCode;
}
-//________________________________________________________________
-Double_t AliEMCALCalibTimeDep::GetTemperatureSMSensor(int imod, int isens, UInt_t timeStamp) const
-{// return estimate for this one SuperModule and sensor, if it had data
-
- // first convert from seconds to hours..
- Double_t timeHour = (timeStamp - fStartTime) * kSecToHour;
-
- 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_t 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 kErrorCode;
-
-}
-
//________________________________________________________________
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
- 1: if we have LED info for the tower, use it
- 2. if not 1, we rely on LED info averaged over strip
- 3. if not 2 either, we try to use temperature info + APD bias and calibration info
+ 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(); // round-down (from double to int)
+ 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 > 0) {
+ cout << " nBins " << nBins << " binSize " << binSize << endl;
+ }
+
// 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);
- // 1+2: try with LED corrections
- Int_t nRemaining = CalcLEDCorrection(nSM, nBins);
-
- // 3: try with Temperature, if needed
- if (nRemaining>0) {
- nRemaining = CalcTemperatureCorrection(nSM, nBins);
- }
+ // 2: try with Temperature correction
+ Int_t nRemaining = CalcTemperatureCorrection(nSM, nBins, binSize);
return nRemaining;
}
Double_t dP1 = kTempCoeffP1Const + kTempCoeffP1Factor * IDark;
Double_t dTC = dP0 + dP1*M;
+ // from % numbers to regular ones..:
+ dTC *= 0.01;
- return dTC;
+ return TMath::Abs(dTC); // return the absolute value, to avoid any sign confusion
}
/* Next come the methods that do the work in picking up all the needed info..*/
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;
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
- TGraph *g = st->GetGraph();
- if (g) { // ok, looks like we have valid data/info
- // let's check what the expected value at the time appears to be
- if (fMinTemp > g->GetMinimum()) { fMinTemp = g->GetMinimum(); }
- if (fMaxTemp < g->GetMaximum()) { fMaxTemp = g->GetMaximum(); }
- n++;
+ 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;
+ int nval = 0;
+ for (int ip=0; ip<np; ip++) {
+ if (y0[ip]>fMinTempValid && y0[ip]<fMaxTempValid) {
+ if (min > y0[ip]) { min = y0[ip]; }
+ if (max < y0[ip]) { max = y0[ip]; }
+ nval++;
+ }
+ }
+ if (nval>0) {
+ 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 (fCalibSignal) {
- AliInfo( Form("CalibSignal: NEvents %d NAcceptedEvents %d Entries %d AvgEntries LEDRefEntries %d LEDRefAvgEntries %d",
+ 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->GetTreeLEDAmpVsTime()->GetEntries(),
fCalibSignal->GetTreeLEDAvgAmpVsTime()->GetEntries() ) );
}
else {
}
//________________________________________________________________
-void AliEMCALCalibTimeDep::GetBiasAPDInfo()
-{
- // pick up Preprocessor output, based on fRun (most recent version)
- AliCDBEntry* entry = AliCDBManager::Instance()->Get("EMCAL/Calib/BiasAPD", fRun);
- if (entry) {
- fBiasAPD = (AliEMCALBiasAPD *) entry->GetObject();
- }
-
- if (fBiasAPD) {
- AliInfo( Form("BiasAPD: NSuperModule %d ", fBiasAPD->GetNSuperModule() ) );
- }
- else {
- AliWarning( Form("AliEMCALBiasAPD not found!") );
- }
-
- return;
-}
-
-//________________________________________________________________
-void AliEMCALCalibTimeDep::GetCalibMapAPDInfo()
+void AliEMCALCalibTimeDep::GetCalibTempCoeffInfo()
{
// pick up Preprocessor output, based on fRun (most recent version)
- AliCDBEntry* entry = AliCDBManager::Instance()->Get("EMCAL/Calib/MapAPD", fRun);
+ AliCDBEntry* entry = AliCDBManager::Instance()->Get("EMCAL/Calib/TempCoeff", fRun);
// stored object should be a TTree; read the info
if (entry) {
- fCalibMapAPD = (AliEMCALCalibMapAPD *) entry->GetObject();
+ fCalibTempCoeff = (AliEMCALCalibTempCoeff *) entry->GetObject();
}
- if (fCalibMapAPD) {
- AliInfo( Form("CalibMapAPD: NSuperModule %d ", fCalibMapAPD->GetNSuperModule() ) );
+ if (fCalibTempCoeff) {
+ AliInfo( Form("CalibTempCoeff: NSuperModule %d ", fCalibTempCoeff->GetNSuperModule() ) );
}
else {
- AliWarning( Form("AliEMCALCalibMapAPD not found!") );
+ 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/MapAPD", fRun);
+ AliCDBEntry* entry = AliCDBManager::Instance()->Get("EMCAL/Calib/Reference", fRun);
if (entry) {
fCalibReference = (AliEMCALCalibReference *) entry->GetObject();
}
TTree *treeAvg = fCalibSignal->GetTreeAvgAmpVsTime();
TTree *treeLEDRefAvg = fCalibSignal->GetTreeAvgAmpVsTime();
- int iChannelNum; // for regular towers
- int iRefNum; // for LED
- double dHour;
- double dAvgAmp;
+ 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);
}
//________________________________________________________________
-Int_t AliEMCALCalibTimeDep::CalcTemperatureCorrection(Int_t nSM, Int_t nBins)
+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
Double_t dTempCoeff[AliEMCALGeoParams::fgkEMCALCols][AliEMCALGeoParams::fgkEMCALRows];
memset(dTempCoeff, 0, sizeof(dTempCoeff));
- Float_t gainM = 0;
Double_t correction = 0;
- Double_t secondsPerBin = (3600/fTimeBinsPerHour);
+ Double_t secondsPerBin = (Double_t) binSize;
for (int i = 0; i < nSM; i++) {
- AliEMCALSuperModuleCalibTimeDepCorrection * dataCalibTimeDepCorrection = fCalibTimeDepCorrection->GetSuperModuleCalibTimeDepCorrectionNum(iSM);
+ AliEMCALSuperModuleCalibTimeDepCorrection * dataCalibTimeDepCorrection = fCalibTimeDepCorrection->GetSuperModuleCalibTimeDepCorrectionNum(i);
iSM = dataCalibTimeDepCorrection->GetSuperModuleNum();
AliEMCALSuperModuleCalibReference * dataCalibReference = fCalibReference->GetSuperModuleCalibReferenceNum(iSM);
- AliEMCALSuperModuleCalibMapAPD * dataCalibMapAPD = fCalibMapAPD->GetSuperModuleCalibMapAPDNum(iSM);
- AliEMCALSuperModuleBiasAPD * dataBiasAPD = fBiasAPD->GetSuperModuleBiasAPDNum(iSM);
-
- // first calculate the M=Gain values, and TemperatureCoeff, for all towers in this SuperModule, from BiasAPD and CalibMapAPD info
+ AliEMCALSuperModuleCalibTempCoeff * dataCalibTempCoeff = fCalibTempCoeff->GetSuperModuleCalibTempCoeffNum(iSM);
+
+ // first get CalibTempCoeff info
for (iCol = 0; iCol < AliEMCALGeoParams::fgkEMCALCols; iCol++) {
for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) {
- AliEMCALCalibMapAPDVal * mapAPD = dataCalibMapAPD->GetAPDVal(iCol, iRow);
- gainM = fCalibMapAPD->GetGain(mapAPD->GetPar(0), mapAPD->GetPar(1), mapAPD->GetPar(2),
- dataBiasAPD->GetVoltage(iCol, iRow));
- dTempCoeff[iCol][iRow] = GetTempCoeff(mapAPD->GetDarkCurrent(), gainM);
+
+ dTempCoeff[iCol][iRow] = dataCalibTempCoeff->GetTC(iCol, iRow);
+ if (fVerbosity > 1) {
+ cout << " iSM " << iSM << " iCol " << iCol << " iRow " << iRow
+ << " dTempCoeff " << dTempCoeff[iCol][iRow] << endl;
+ }
}
}
if (nVal>0) {
referenceTemperature /= nVal; // valid values exist, we can look into corrections
+ Double_t dSMTemperature = 0;
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; // old vs new
- // if the new temperature is higher than the old/reference one, then the gain has gone down
- if (fabs(temperatureDiff)>fTemperatureResolution) {
- // significant enough difference that we need to consider it
+ Double_t oldSMTemperature = dSMTemperature;
+ dSMTemperature = GetTemperatureSM(iSM, timeStamp);
+ if (j>0 && (dSMTemperature==kErrorCode)) {
+ // if we have previous values, and retrieval of values failed - use that instead (hopefully good)
+ dSMTemperature = oldSMTemperature;
+ }
+
+ 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++) {
- correction = temperatureDiff * dTempCoeff[iCol][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;
+ }
}
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff