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1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
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 **************************************************************************/
15
16/* $Id: AliEMCALCalibTimeDep.cxx $ */
17
18//_________________________________________________________________________
19///*-- Author:
20///////////////////////////////////////////////////////////////////////////////
21// //
22// class for EMCAL time-dep calibration
23// - supposed to run in preprocessor
24// we use input from the following sources:
25// AliEMCALBiasAPD (bias values), AliEMCALCalibMapAPD (APD calibration and location info),
26// AliCaloCalibSignal (LED DA), AliEMCALSensorTempArray (ELMB DCS)
27// AliEMCALCalibReference: LED amplitude and temperature info at reference time
28//
29// output/result is in AliEMCALCalibTimeDepCorrection
30// //
31///////////////////////////////////////////////////////////////////////////////
32
33#include <iostream>
34#include <TGraphSmooth.h>
35#include "AliLog.h"
36#include "AliCDBEntry.h"
37#include "AliCDBManager.h"
38#include "AliEMCALSensorTempArray.h"
39#include "AliCaloCalibSignal.h"
40#include "AliEMCALBiasAPD.h"
41#include "AliEMCALCalibMapAPD.h"
42#include "AliEMCALCalibReference.h"
43#include "AliEMCALCalibTimeDepCorrection.h"
44#include "AliEMCALCalibTimeDep.h"
45
46/* first a bunch of constants.. */
47const double kSecToHour = 1.0/3600.0; // conversion factor from seconds to hours
48
49// some global variables for APD handling; values from Catania studies, best fit
50// TempCoeff = p0+p1*M (M=gain), where p0 and and p1 are functions of the dark current
51const double kTempCoeffP0Const = -0.903; //
52const double kTempCoeffP0Factor = -1.381e7; //
53const double kTempCoeffP1Const = -0.023; //
54const double kTempCoeffP1Factor = -4.966e5; //
55
56const double kErrorCode = -999; // to indicate that something went wrong
57
58using namespace std;
59
60ClassImp(AliEMCALCalibTimeDep)
61
62//________________________________________________________________
63AliEMCALCalibTimeDep::AliEMCALCalibTimeDep() :
64 fRun(0),
65 fStartTime(0),
66 fEndTime(0),
67 fMinTemp(0),
68 fMaxTemp(0),
69 fMinTime(0),
70 fMaxTime(0),
71 fTemperatureResolution(0.1), // 0.1 deg C is default
72 fTimeBinsPerHour(2), // 2 30-min bins per hour is default
73 fHighLowGainFactor(16), // factor ~16 between High gain and low gain
74 fTempArray(NULL),
75 fCalibSignal(NULL),
76 fBiasAPD(NULL),
77 fCalibMapAPD(NULL),
78 fCalibReference(NULL),
79 fCalibTimeDepCorrection(NULL)
80{
81 // Constructor
82}
83
84//________________________________________________________________
85AliEMCALCalibTimeDep::AliEMCALCalibTimeDep(const AliEMCALCalibTimeDep& calibt) :
86 TObject(calibt),
87 fRun(calibt.GetRunNumber()),
88 fStartTime(calibt.GetStartTime()),
89 fEndTime(calibt.GetEndTime()),
90 fMinTemp(calibt.GetMinTemp()),
91 fMaxTemp(calibt.GetMaxTemp()),
92 fMinTime(calibt.GetMinTime()),
93 fMaxTime(calibt.GetMaxTime()),
94 fTemperatureResolution(calibt.GetTemperatureResolution()),
95 fTimeBinsPerHour(calibt.GetTimeBinsPerHour()),
96 fHighLowGainFactor(calibt.GetHighLowGainFactor()),
97 fTempArray(calibt.GetTempArray()),
98 fCalibSignal(calibt.GetCalibSignal()),
99 fBiasAPD(calibt.GetBiasAPD()),
100 fCalibMapAPD(calibt.GetCalibMapAPD()),
101 fCalibReference(calibt.GetCalibReference()),
102 fCalibTimeDepCorrection(calibt.GetCalibTimeDepCorrection())
103{
104 // copy constructor
105}
106
107
108//________________________________________________________________
109AliEMCALCalibTimeDep &AliEMCALCalibTimeDep::operator =(const AliEMCALCalibTimeDep& calibt)
110{
111 // assignment operator; use copy ctor
112 if (&calibt == this) return *this;
113
114 new (this) AliEMCALCalibTimeDep(calibt);
115 return *this;
116}
117
118//________________________________________________________________
119AliEMCALCalibTimeDep::~AliEMCALCalibTimeDep()
120{
121 // Destructor
122}
123
124//________________________________________________________________
125void AliEMCALCalibTimeDep::Reset()
126{
127 // clear variables to default
128 fRun = 0;
129 fStartTime = 0;
130 fEndTime = 0;
131 fMinTemp = 0;
132 fMaxTemp = 0;
133 fMinTime = 0;
134 fMaxTime = 0;
135 fTemperatureResolution = 0.1; // 0.1 deg C is default
136 fTimeBinsPerHour = 2; // 2 30-min bins per hour is default
137 fTempArray = NULL;
138 fCalibSignal = NULL;
139 fBiasAPD = NULL;
140 fCalibMapAPD = NULL;
141 fCalibReference = NULL;
142 fCalibTimeDepCorrection = NULL;
143 return;
144}
145
146//________________________________________________________________
147void AliEMCALCalibTimeDep::PrintInfo() const
148{
149 // print some info
150 cout << endl << " AliEMCALCalibTimeDep::PrintInfo() " << endl;
151 // basic variables, all 'publicly available' also
152 cout << " VARIABLE DUMP: " << endl
153 << " GetStartTime() " << GetStartTime() << endl
154 << " GetEndTime() " << GetEndTime() << endl
155 << " GetMinTemp() " << GetMinTemp() << endl
156 << " GetMaxTemp() " << GetMaxTemp() << endl;
157 // run ranges
158 cout << " RUN INFO: " << endl
159 << " length (in hours) " << GetLengthOfRunInHours() << endl
160 << " range of temperature measurements (in hours) " << GetRangeOfTempMeasureInHours()
161 << " (in deg. C) " << GetRangeOfTempMeasureInDegrees()
162 << endl;
163
164 return;
165}
166
167//________________________________________________________________
168Double_t AliEMCALCalibTimeDep::GetLengthOfRunInHours() const
169{
170 return (fEndTime - fStartTime)*kSecToHour;
171}
172
173//________________________________________________________________
174Double_t AliEMCALCalibTimeDep::GetLengthOfRunInBins() const
175{
176 return (fEndTime - fStartTime)*kSecToHour*fTimeBinsPerHour;
177}
178
179//________________________________________________________________
180Double_t AliEMCALCalibTimeDep::GetRangeOfTempMeasureInHours() const
181{
182 return (fMaxTime - fMinTime)*kSecToHour;
183}
184
185//________________________________________________________________
186Double_t AliEMCALCalibTimeDep::GetRangeOfTempMeasureInDegrees() const
187{
188 return (fMaxTemp - fMinTemp);
189}
190
191//________________________________________________________________
192void AliEMCALCalibTimeDep::Initialize(Int_t run,
193 UInt_t startTime, UInt_t endTime)
194{ // setup, and get temperature info
195 Reset(); // start fresh
196
197 fRun = run;
198 fStartTime = startTime;
199 fEndTime = endTime;
200
201 // collect the needed information
202 GetTemperatureInfo(); // temperature readings during the run
203 ScanTemperatureInfo(); // see what the boundaries are (Min/Max Time/Temp)
204
205 return;
206}
207
208//________________________________________________________________
209Double_t AliEMCALCalibTimeDep::GetTemperature(UInt_t timeStamp) const
210{// return estimate for all SuperModules and sensors, that had data
211
212 // first convert from seconds to hours..
213 Double_t timeHour = (timeStamp - fStartTime) * kSecToHour;
214
215 Double_t average = 0;
216 int n = 0;
217
218 for (int i=0; i<fTempArray->NumSensors(); i++) {
219
220 AliEMCALSensorTemp *st = fTempArray->GetSensor(i);
221
222 // check if we had valid data for the time that is being asked for
223 if ( timeStamp>=st->GetStartTime() && timeStamp<=st->GetEndTime() ) {
224 AliSplineFit *f = st->GetFit();
225 if (f) { // ok, looks like we have valid data/info
226 // let's check what the expected value at the time appears to be
227 Double_t val = f->Eval(timeHour);
228 average += val;
229 n++;
230 }
231 } // time
232 } // loop over fTempArray
233
234 if (n>0) { // some valid data was found
235 average /= n;
236 return average;
237 }
238 else { // no good data
239 return kErrorCode;
240 }
241
242}
243
244//________________________________________________________________
245Double_t AliEMCALCalibTimeDep::GetTemperatureSM(int imod, UInt_t timeStamp) const
246{// return estimate for this one SuperModule, if it had data
247
248 // first convert from seconds to hours..
249 Double_t timeHour = (timeStamp - fStartTime) * kSecToHour;
250
251 Double_t average = 0;
252 int n = 0;
253
254 for (int i=0; i<fTempArray->NumSensors(); i++) {
255
256 AliEMCALSensorTemp *st = fTempArray->GetSensor(i);
257 int module = st->GetSector()*2 + st->GetSide();
258 if ( module == imod ) { // right module
259 // check if we had valid data for the time that is being asked for
260 if ( timeStamp>=st->GetStartTime() && timeStamp<=st->GetEndTime() ) {
261 AliSplineFit *f = st->GetFit();
262 if (f) { // ok, looks like we have valid data/info
263 // let's check what the expected value at the time appears to be
264 Double_t val = f->Eval(timeHour);
265 cout << " i " << i << " val " << val << endl;
266 average += val;
267 n++;
268 }
269 } // time
270 }
271
272 } // loop over fTempArray
273
274 if (n>0) { // some valid data was found
275 average /= n;
276 return average;
277 }
278 else { // no good data
279 return kErrorCode;
280 }
281
282}
283
284//________________________________________________________________
285Double_t AliEMCALCalibTimeDep::GetTemperatureSMSensor(int imod, int isens, UInt_t timeStamp) const
286{// return estimate for this one SuperModule and sensor, if it had data
287
288 // first convert from seconds to hours..
289 Double_t timeHour = (timeStamp - fStartTime) * kSecToHour;
290
291 for (int i=0; i<fTempArray->NumSensors(); i++) {
292
293 AliEMCALSensorTemp *st = fTempArray->GetSensor(i);
294 int module = st->GetSector()*2 + st->GetSide();
295 if ( module == imod && st->GetNum()==isens ) { // right module, and sensor
296 // check if we had valid data for the time that is being asked for
297 if ( timeStamp>=st->GetStartTime() && timeStamp<=st->GetEndTime() ) {
298 AliSplineFit *f = st->GetFit();
299 if (f) { // ok, looks like we have valid data/info
300 // let's check what the expected value at the time appears to be
301 Double_t val = f->Eval(timeHour);
302
303 return val; // no point to move further in for loop, we have found the sensor we were looking for
304 }
305 } // time
306 }
307
308 } // loop over fTempArray
309
310 // if we made it all here, it means that we didn't find the sensor we were looking for
311 // i.e. no good data
312 return kErrorCode;
313
314}
315
316//________________________________________________________________
317Int_t AliEMCALCalibTimeDep::CalcCorrection()
318{ // OK, this is where the real action takes place - the heart of this class..
319 /* The philosophy is as follows:
320 0. Init corrections to 1.0 values
321 1: if we have LED info for the tower, use it
322 2. if not 1, we rely on LED info averaged over strip
323 3. if not 2 either, we try to use temperature info + APD bias and calibration info
324 */
325
326 // 0: Init
327 // how many SuperModules do we have?
328 Int_t nSM = fCalibReference->GetNSuperModule();
329 // how many time-bins should we have for this run?
330 Int_t nBins = (Int_t) GetLengthOfRunInBins(); // round-down (from double to int)
331 Int_t binSize = (Int_t) (3600/fTimeBinsPerHour); // in seconds
332 // set up a reasonable default (correction = 1.0)
333 fCalibTimeDepCorrection->InitCorrection(nSM, nBins, 1.0);
334 fCalibTimeDepCorrection->SetStartTime(fStartTime);
335 fCalibTimeDepCorrection->SetNTimeBins(nBins);
336 fCalibTimeDepCorrection->SetTimeBinSize(binSize);
337
338 // 1+2: try with LED corrections
339 Int_t nRemaining = CalcLEDCorrection(nSM, nBins);
340
341 // 3: try with Temperature, if needed
342 if (nRemaining>0) {
343 nRemaining = CalcTemperatureCorrection(nSM, nBins);
344 }
345
346 return nRemaining;
347}
348
349
350//________________________________________________________________
351Double_t AliEMCALCalibTimeDep::GetTempCoeff(Double_t IDark, Double_t M) const
352{ // estimate the Temperature Coefficient, based on the dark current (IDark)
353 // and the gain (M), based on Catania parameterizations
354
355 Double_t dP0 = kTempCoeffP0Const + kTempCoeffP0Factor * IDark;
356 Double_t dP1 = kTempCoeffP1Const + kTempCoeffP1Factor * IDark;
357
358 Double_t dTC = dP0 + dP1*M;
359
360 return dTC;
361}
362
363/* Next come the methods that do the work in picking up all the needed info..*/
364//________________________________________________________________
365void AliEMCALCalibTimeDep::GetTemperatureInfo()
366{
367 // pick up Preprocessor output, based on fRun (most recent version)
368 AliCDBEntry* entry = AliCDBManager::Instance()->Get("EMCAL/Calib/Temperature", fRun);
369 if (entry) {
370 fTempArray = (AliEMCALSensorTempArray *) entry->GetObject();
371 }
372
373 if (fTempArray) {
374 AliInfo( Form("NumSensors %d - IdDCS: first %d last %d",
375 fTempArray->NumSensors(),
376 fTempArray->GetFirstIdDCS(), fTempArray->GetLastIdDCS() ) );
377 }
378 else {
379 AliWarning( Form("AliEMCALSensorTempArray not found!") );
380 }
381
382 return;
383}
384
385//________________________________________________________________
386Int_t AliEMCALCalibTimeDep::ScanTemperatureInfo()
387{// assign max/min time and temperature values
388
389 fMinTemp = 999; // init to some large value (999 deg C)
390 fMaxTemp = 0;
391 fMinTime = 2147483647; // init to a large value in the far future (0x7fffffff), year 2038 times..
392 fMaxTime = 0;
393
394 Int_t n = 0; // number of valid readings
395
396 for (int i=0; i<fTempArray->NumSensors(); i++) {
397
398 AliEMCALSensorTemp *st = fTempArray->GetSensor(i);
399
400 // check time ranges
401 if (fMinTime > st->GetStartTime()) { fMinTime = st->GetStartTime(); }
402 if (fMaxTime < st->GetEndTime()) { fMaxTime = st->GetEndTime(); }
403
404 // check temperature ranges
405 TGraph *g = st->GetGraph();
406 if (g) { // ok, looks like we have valid data/info
407 // let's check what the expected value at the time appears to be
408 if (fMinTemp > g->GetMinimum()) { fMinTemp = g->GetMinimum(); }
409 if (fMaxTemp < g->GetMaximum()) { fMaxTemp = g->GetMaximum(); }
410 n++;
411 }
412 } // loop over fTempArray
413
414 if (n>0) { // some valid data was found
415 return n;
416 }
417 else { // no good data
418 return (Int_t) kErrorCode;
419 }
420
421}
422
423//________________________________________________________________
424void AliEMCALCalibTimeDep::GetCalibSignalInfo()
425{
426 // pick up Preprocessor output, based on fRun (most recent version)
427 AliCDBEntry* entry = AliCDBManager::Instance()->Get("EMCAL/Calib/LED", fRun);
428 if (entry) {
429 fCalibSignal = (AliCaloCalibSignal *) entry->GetObject();
430 }
431
432 if (fCalibSignal) {
433 AliInfo( Form("CalibSignal: NEvents %d NAcceptedEvents %d Entries %d AvgEntries LEDRefEntries %d LEDRefAvgEntries %d",
434 fCalibSignal->GetNEvents(), fCalibSignal->GetNAcceptedEvents(),
435 fCalibSignal->GetTreeAmpVsTime()->GetEntries(),
436 fCalibSignal->GetTreeAvgAmpVsTime()->GetEntries(),
437 fCalibSignal->GetTreeLEDAmpVsTime()->GetEntries(),
438 fCalibSignal->GetTreeLEDAvgAmpVsTime()->GetEntries() ) );
439 }
440 else {
441 AliWarning( Form("AliCaloCalibSignal not found!") );
442 }
443
444 return;
445}
446
447//________________________________________________________________
448void AliEMCALCalibTimeDep::GetBiasAPDInfo()
449{
450 // pick up Preprocessor output, based on fRun (most recent version)
451 AliCDBEntry* entry = AliCDBManager::Instance()->Get("EMCAL/Calib/BiasAPD", fRun);
452 if (entry) {
453 fBiasAPD = (AliEMCALBiasAPD *) entry->GetObject();
454 }
455
456 if (fBiasAPD) {
457 AliInfo( Form("BiasAPD: NSuperModule %d ", fBiasAPD->GetNSuperModule() ) );
458 }
459 else {
460 AliWarning( Form("AliEMCALBiasAPD not found!") );
461 }
462
463 return;
464}
465
466//________________________________________________________________
467void AliEMCALCalibTimeDep::GetCalibMapAPDInfo()
468{
469 // pick up Preprocessor output, based on fRun (most recent version)
470 AliCDBEntry* entry = AliCDBManager::Instance()->Get("EMCAL/Calib/MapAPD", fRun);
471 // stored object should be a TTree; read the info
472 if (entry) {
473 fCalibMapAPD = (AliEMCALCalibMapAPD *) entry->GetObject();
474 }
475
476 if (fCalibMapAPD) {
477 AliInfo( Form("CalibMapAPD: NSuperModule %d ", fCalibMapAPD->GetNSuperModule() ) );
478 }
479 else {
480 AliWarning( Form("AliEMCALCalibMapAPD not found!") );
481 }
482
483 return;
484}
485
486//________________________________________________________________
487void AliEMCALCalibTimeDep::GetCalibReferenceInfo()
488{
489 // pick up Preprocessor output, based on fRun (most recent version)
490 AliCDBEntry* entry = AliCDBManager::Instance()->Get("EMCAL/Calib/MapAPD", fRun);
491 if (entry) {
492 fCalibReference = (AliEMCALCalibReference *) entry->GetObject();
493 }
494
495 if (fCalibReference) {
496 AliInfo( Form("CalibReference: NSuperModule %d ", fCalibReference->GetNSuperModule() ) );
497 }
498 else {
499 AliWarning( Form("AliEMCALCalibReference not found!") );
500 }
501
502 return;
503}
504
505//________________________________________________________________
506Int_t AliEMCALCalibTimeDep::CalcLEDCorrection(Int_t nSM, Int_t nBins)
507{// Construct normalized ratios R(t)=LED(t)/LEDRef(t), for current time T and calibration time t0
508 // The correction factor we keep is c(T) = R(t0)/R(T)
509 // T info from fCalibSignal, t0 info from fCalibReference
510
511 // NOTE: for now we don't use the RMS info either from fCalibSignal or fCalibReference
512 // but one could upgrade this in the future
513 Int_t nRemaining = 0; // we count the towers for which we could not get valid data
514
515 // sanity check; same SuperModule indices for corrections as for regular calibrations
516 for (int i = 0; i < nSM; i++) {
517 AliEMCALSuperModuleCalibReference * dataCalibReference = fCalibReference->GetSuperModuleCalibReferenceNum(i);
518 AliEMCALSuperModuleCalibTimeDepCorrection * dataCalibTimeDepCorrection = fCalibTimeDepCorrection->GetSuperModuleCalibTimeDepCorrectionNum(i);
519
520 int iSMRef = dataCalibReference->GetSuperModuleNum();
521 int iSMCorr = dataCalibTimeDepCorrection->GetSuperModuleNum();
522 if (iSMRef != iSMCorr) {
523 AliWarning( Form("AliEMCALCalibTimeDep - SuperModule index mismatch: %d != %d", iSMRef, iSMCorr) );
524 nRemaining = nSM * AliEMCALGeoParams::fgkEMCALCols * AliEMCALGeoParams::fgkEMCALRows * nBins;
525 return nRemaining;
526 }
527 }
528
529 int iSM = 0;
530 int iCol = 0;
531 int iRow = 0;
532 int iStrip = 0;
533 int iGain = 0;
534
535 // The fCalibSignal info is stored in TTrees
536 // Note that the time-bins for the TTree's may not exactly match with our correction time bins
537 int timeDiff = fCalibSignal->GetStartTime() - fStartTime; // in seconds
538 // fCalibSignal time info in seconds: Hour/kSecToHour
539 // corrected for startTime difference: Hour/kSecToHour + timeDiff
540 // converted into a time-bin we use: (Hour + timeDiff*kSecToHour) * fTimeBinsPerHour
541
542 // values for R(T), size of TArray = nBins
543 // the [2] dimension below is for the low or high gain
544 TArrayF ampT[AliEMCALGeoParams::fgkEMCALModules][AliEMCALGeoParams::fgkEMCALCols][AliEMCALGeoParams::fgkEMCALRows][2];
545 TArrayF nT[AliEMCALGeoParams::fgkEMCALModules][AliEMCALGeoParams::fgkEMCALCols][AliEMCALGeoParams::fgkEMCALRows][2];
546 TArrayF ampLEDRefT[AliEMCALGeoParams::fgkEMCALModules][AliEMCALGeoParams::fgkEMCALLEDRefs][2];
547 TArrayF nLEDRefT[AliEMCALGeoParams::fgkEMCALModules][AliEMCALGeoParams::fgkEMCALLEDRefs][2];
548
549 // set up TArray's first
550 for (iSM = 0; iSM < AliEMCALGeoParams::fgkEMCALModules; iSM++) {
551 for (iCol = 0; iCol < AliEMCALGeoParams::fgkEMCALCols; iCol++) {
552 for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) {
553 for (iGain = 0; iGain < 2; iGain++) {
554 // length of arrays
555 ampT[iSM][iCol][iRow][iGain].Set(nBins);
556 nT[iSM][iCol][iRow][iGain].Set(nBins);
557 // content of arrys
558 for (int j = 0; j < nBins; j++) {
559 ampT[iSM][iCol][iRow][iGain].AddAt(0, j);
560 nT[iSM][iCol][iRow][iGain].AddAt(0, j);
561 }
562 }
563 }
564 }//iCol
565 for (iStrip = 0; iStrip < AliEMCALGeoParams::fgkEMCALLEDRefs; iStrip++) {
566 for (iGain = 0; iGain < 2; iGain++) {
567 // length of arrays
568 ampLEDRefT[iSM][iStrip][iGain].Set(nBins);
569 nLEDRefT[iSM][iStrip][iGain].Set(nBins);
570 // content of arrys
571 for (int j = 0; j < nBins; j++) {
572 ampLEDRefT[iSM][iStrip][iGain].AddAt(0, j);
573 nLEDRefT[iSM][iStrip][iGain].AddAt(0, j);
574 }
575 }
576 }//iStrip
577 }
578
579 // OK, now loop over the TTrees and fill the arrays needed for R(T)
580 TTree *treeAvg = fCalibSignal->GetTreeAvgAmpVsTime();
581 TTree *treeLEDRefAvg = fCalibSignal->GetTreeAvgAmpVsTime();
582
583 int iChannelNum; // for regular towers
584 int iRefNum; // for LED
585 double dHour;
586 double dAvgAmp;
587
588 treeAvg->SetBranchAddress("fChannelNum", &iChannelNum);
589 treeAvg->SetBranchAddress("fHour", &dHour);
590 treeAvg->SetBranchAddress("fAvgAmp",&dAvgAmp);
591
592 int iBin = 0;
593 // counters for how many values were seen per SuperModule
594 int nCount[AliEMCALGeoParams::fgkEMCALModules] = {0};
595 int nCountLEDRef[AliEMCALGeoParams::fgkEMCALModules] = {0};
596
597 for (int ient=0; ient<treeAvg->GetEntries(); ient++) {
598 treeAvg->GetEntry(ient);
599 // figure out where this info comes from
600 fCalibSignal->DecodeChannelNum(iChannelNum, &iSM, &iCol, &iRow, &iGain);
601 iBin = (int) ( (dHour + timeDiff*kSecToHour) * fTimeBinsPerHour ); // CHECK!!!
602 // add value in the arrays
603 ampT[iSM][iCol][iRow][iGain].AddAt( ampT[iSM][iCol][iRow][iGain].At(iBin)+dAvgAmp, iBin );
604 nT[iSM][iCol][iRow][iGain].AddAt( nT[iSM][iCol][iRow][iGain].At(iBin)+1, iBin );
605 nCount[iSM]++;
606 }
607
608 treeLEDRefAvg->SetBranchAddress("fRefNum", &iRefNum);
609 treeLEDRefAvg->SetBranchAddress("fHour", &dHour);
610 treeLEDRefAvg->SetBranchAddress("fAvgAmp",&dAvgAmp);
611
612 for (int ient=0; ient<treeLEDRefAvg->GetEntries(); ient++) {
613 treeLEDRefAvg->GetEntry(ient);
614 // figure out where this info comes from
615 fCalibSignal->DecodeRefNum(iRefNum, &iSM, &iStrip, &iGain);
616 iBin = (int) ( (dHour + timeDiff*kSecToHour) * fTimeBinsPerHour ); // CHECK!!!
617 // add value in the arrays
618 ampLEDRefT[iSM][iStrip][iGain].AddAt( ampLEDRefT[iSM][iStrip][iGain].At(iBin)+dAvgAmp, iBin );
619 nLEDRefT[iSM][iStrip][iGain].AddAt( nLEDRefT[iSM][iStrip][iGain].At(iBin)+1, iBin );
620 nCountLEDRef[iSM]++;
621 }
622
623 // Normalize TArray values, and calculate average also
624 Float_t norm = 0; // extra var, for readability
625
626 for (iSM = 0; iSM < AliEMCALGeoParams::fgkEMCALModules; iSM++) {
627 if (nCount[iSM]>0 && nCountLEDRef[iSM]>0) { // avoid SuperModules with no data..
628 for (iCol = 0; iCol < AliEMCALGeoParams::fgkEMCALCols; iCol++) {
629 // iStrip = AliEMCALGeoParams::GetStripModule(iSM, iCol);
630 iStrip = (iSM%2==0) ? iCol/2 : AliEMCALGeoParams::fgkEMCALLEDRefs - 1 - iCol/2; //TMP, FIXME
631 for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) {
632 for (iGain = 0; iGain < 2; iGain++) {
633 // content of arrys
634 for (int j = 0; j < nBins; j++) {
635 if (nT[iSM][iCol][iRow][iGain].At(j) > 0) {
636 norm = ampT[iSM][iCol][iRow][iGain].At(j) / nT[iSM][iCol][iRow][iGain].At(j);
637 ampT[iSM][iCol][iRow][iGain].AddAt(norm, j); // AddAt = SetAt
638 }
639 }
640 }
641 }
642 }//iCol
643 for (iStrip = 0; iStrip < AliEMCALGeoParams::fgkEMCALLEDRefs; iStrip++) {
644 for (iGain = 0; iGain < 2; iGain++) {
645 for (int j = 0; j < nBins; j++) {
646 if (nLEDRefT[iSM][iStrip][iGain].At(j) > 0) {
647 norm = ampLEDRefT[iSM][iStrip][iGain].At(j) / nLEDRefT[iSM][iStrip][iGain].At(j);
648 ampLEDRefT[iSM][iStrip][iGain].AddAt(norm, j); // AddAt = SetAt
649 }
650 }
651 }
652 }//iStrip
653 }
654 } // iSM
655
656
657 // Calculate correction values, and store them
658 // set kErrorCode values for those that could not be set
659
660 Float_t ratiot0 = 0;
661 Float_t ratioT = 0;
662 Float_t correction = 0; // c(T) = R(t0)/R(T)
663 Int_t refGain = 0; // typically use low gain for LED reference amplitude (high gain typically well beyond saturation)
664
665 for (int i = 0; i < nSM; i++) {
666 AliEMCALSuperModuleCalibReference * dataCalibReference = fCalibReference->GetSuperModuleCalibReferenceNum(i);
667 AliEMCALSuperModuleCalibTimeDepCorrection * dataCalibTimeDepCorrection = fCalibTimeDepCorrection->GetSuperModuleCalibTimeDepCorrectionNum(i);
668 iSM = dataCalibReference->GetSuperModuleNum();
669
670 for (iCol = 0; iCol < AliEMCALGeoParams::fgkEMCALCols; iCol++) {
671 // iStrip = AliEMCALGeoParams::GetStripModule(iSM, iCol);
672 iStrip = (iSM%2==0) ? iCol/2 : AliEMCALGeoParams::fgkEMCALLEDRefs - 1 - iCol/2; //TMP, FIXME
673 refGain = dataCalibReference->GetLEDRefHighLow(iStrip); // LED reference gain value used for reference calibration
674
675 for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) {
676
677 // Calc. R(t0):
678 AliEMCALCalibReferenceVal * refVal = dataCalibReference->GetAPDVal(iCol, iRow);
679 iGain = refVal->GetHighLow(); // gain value used for reference calibration
680 // valid amplitude values should be larger than 0
681 if (refVal->GetLEDAmp()>0 && dataCalibReference->GetLEDRefAmp(iStrip)>0) {
682 ratiot0 = refVal->GetLEDAmp() / dataCalibReference->GetLEDRefAmp(iStrip);
683 }
684 else {
685 ratiot0 = kErrorCode;
686 }
687
688 // Calc. R(T)
689 for (int j = 0; j < nBins; j++) {
690
691 // calculate R(T) also; first try with individual tower:
692 // same gain as for reference calibration is the default
693 if (ampT[iSM][iCol][iRow][iGain].At(j)>0 && ampLEDRefT[iSM][iStrip][refGain].At(j)>0) {
694 // looks like valid data with the right gain combination
695 ratioT = ampT[iSM][iCol][iRow][iGain].At(j) / ampLEDRefT[iSM][iStrip][refGain].At(j);
696
697 // if data appears to be saturated, and we are in high gain, then try with low gain instead
698 int newGain = iGain;
699 int newRefGain = refGain;
700 if ( ampT[iSM][iCol][iRow][iGain].At(j)>AliEMCALGeoParams::fgkOverflowCut && iGain==1 ) {
701 newGain = 0;
702 }
703 if ( ampLEDRefT[iSM][iStrip][refGain].At(j)>AliEMCALGeoParams::fgkOverflowCut && refGain==1 ) {
704 newRefGain = 0;
705 }
706
707 if (newGain!=iGain || newRefGain!=refGain) {
708 // compensate for using different gain than in the reference calibration
709 // we may need to have a custom H/L ratio value for each tower
710 // later, but for now just use a common value, as the rest of the code does..
711 ratioT = ampT[iSM][iCol][iRow][newGain].At(j) / ampLEDRefT[iSM][iStrip][newRefGain].At(j);
712
713 if (newGain<iGain) {
714 ratioT *= fHighLowGainFactor;
715 }
716 else if (newRefGain<refGain) {
717 ratioT /= fHighLowGainFactor;
718 }
719 }
720 }
721 else {
722 ratioT = kErrorCode;
723 }
724
725 // Calc. correction factor
726 if (ratiot0>0 && ratioT>0) {
727 correction = ratiot0/ratioT;
728 }
729 else {
730 correction = kErrorCode;
731 nRemaining++;
732 }
733
734 // Store the value
735 dataCalibTimeDepCorrection->GetCorrection(iCol,iRow)->AddAt(correction, j);
736 /* Check that
737 fTimeDepCorrection->SetCorrection(i, iCol, iRow, j, correction);
738 also works OK */
739 } // nBins
740 }
741 }
742 }
743
744 nRemaining = CalcLEDCorrectionStripBasis(nSM, nBins);
745 return nRemaining;
746}
747
748//________________________________________________________________
749Int_t AliEMCALCalibTimeDep::CalcLEDCorrectionStripBasis(Int_t nSM, Int_t nBins)
750{ // use averages for each strip if no good values exist for some single tower
751
752 // go over fTimeDepCorrection info
753 Int_t nRemaining = 0; // we count the towers for which we could not get valid data
754
755 // for calculating StripAverage info
756 int nValidTower = 0;
757 Float_t stripAverage = 0;
758 Float_t val = 0;
759
760 int iSM = 0;
761 int iCol = 0;
762 int iRow = 0;
763 int iStrip = 0;
764 int firstCol = 0;
765 int lastCol = 0;
766
767 for (int i = 0; i < nSM; i++) {
768 AliEMCALSuperModuleCalibTimeDepCorrection * dataCalibTimeDepCorrection = fCalibTimeDepCorrection->GetSuperModuleCalibTimeDepCorrectionNum(i);
769 iSM = dataCalibTimeDepCorrection->GetSuperModuleNum();
770
771 for (int j = 0; j < nBins; j++) {
772
773 nValidTower = 0;
774 stripAverage = 0;
775
776 for (iStrip = 0; iStrip < AliEMCALGeoParams::fgkEMCALLEDRefs; iStrip++) {
777 firstCol = iStrip*2;
778 if ((iSM%2)==1) { // C side
779 firstCol = (AliEMCALGeoParams::fgkEMCALLEDRefs-1 - iStrip)*2;
780 }
781 lastCol = firstCol+1;
782
783 for (iCol = firstCol; iCol <= lastCol; iCol++) {
784 for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) {
785 val = dataCalibTimeDepCorrection->GetCorrection(iCol,iRow)->At(j);
786 if (val>0) { // valid value; error code is negative
787 stripAverage += val;
788 nValidTower++;
789 }
790 }
791 }
792
793 // calc average over strip
794 if (nValidTower>0) {
795 stripAverage /= nValidTower;
796 for (iCol = firstCol; iCol <= lastCol; iCol++) {
797 for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) {
798 val = dataCalibTimeDepCorrection->GetCorrection(iCol,iRow)->At(j);
799 if (val<0) { // invalid value; error code is negative
800 dataCalibTimeDepCorrection->GetCorrection(iCol,iRow)->AddAt(val, j);
801 }
802 }
803 }
804 }
805 else { // could not fill in unvalid entries
806 nRemaining += 2*AliEMCALGeoParams::fgkEMCALRows;
807 }
808
809 } // iStrip
810 } // j, bins
811 } // iSM
812
813 return nRemaining;
814}
815
816//________________________________________________________________
817Int_t AliEMCALCalibTimeDep::CalcTemperatureCorrection(Int_t nSM, Int_t nBins)
818{ // OK, so we didn't have valid LED data that allowed us to do the correction only
819 // with that info.
820 // So, instead we'll rely on the temperature info and try to do the correction
821 // based on that instead.
822 // For this, we'll need the info from 3 classes (+temperature array), and output the values in a 4th class
823 Int_t nRemaining = 0;
824
825 int iSM = 0;
826 int iCol = 0;
827 int iRow = 0;
828
829 Double_t dTempCoeff[AliEMCALGeoParams::fgkEMCALCols][AliEMCALGeoParams::fgkEMCALRows];
830 memset(dTempCoeff, 0, sizeof(dTempCoeff));
831 Float_t gainM = 0;
832 Double_t correction = 0;
833 Double_t secondsPerBin = (3600/fTimeBinsPerHour);
834
835 for (int i = 0; i < nSM; i++) {
836 AliEMCALSuperModuleCalibTimeDepCorrection * dataCalibTimeDepCorrection = fCalibTimeDepCorrection->GetSuperModuleCalibTimeDepCorrectionNum(iSM);
837 iSM = dataCalibTimeDepCorrection->GetSuperModuleNum();
838
839 AliEMCALSuperModuleCalibReference * dataCalibReference = fCalibReference->GetSuperModuleCalibReferenceNum(iSM);
840 AliEMCALSuperModuleCalibMapAPD * dataCalibMapAPD = fCalibMapAPD->GetSuperModuleCalibMapAPDNum(iSM);
841 AliEMCALSuperModuleBiasAPD * dataBiasAPD = fBiasAPD->GetSuperModuleBiasAPDNum(iSM);
842
843 // first calculate the M=Gain values, and TemperatureCoeff, for all towers in this SuperModule, from BiasAPD and CalibMapAPD info
844 for (iCol = 0; iCol < AliEMCALGeoParams::fgkEMCALCols; iCol++) {
845 for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) {
846 AliEMCALCalibMapAPDVal * mapAPD = dataCalibMapAPD->GetAPDVal(iCol, iRow);
847 gainM = fCalibMapAPD->GetGain(mapAPD->GetPar(0), mapAPD->GetPar(1), mapAPD->GetPar(2),
848 dataBiasAPD->GetVoltage(iCol, iRow));
849 dTempCoeff[iCol][iRow] = GetTempCoeff(mapAPD->GetDarkCurrent(), gainM);
850 }
851 }
852
853 // figure out what the reference temperature is, from fCalibReference
854 Double_t referenceTemperature = 0;
855 int nVal = 0;
856 for (int iSensor = 0; iSensor<AliEMCALGeoParams::fgkEMCALTempSensors ; iSensor++) {
857 if (dataCalibReference->GetTemperature(iSensor)>0) { // hopefully OK value
858 referenceTemperature += dataCalibReference->GetTemperature(iSensor);
859 nVal++;
860 }
861 }
862
863 if (nVal>0) {
864 referenceTemperature /= nVal; // valid values exist, we can look into corrections
865
866 for (int j = 0; j < nBins; j++) {
867
868 // what is the timestamp in the middle of this bin? (0.5 is for middle of bin)
869 UInt_t timeStamp = fStartTime + (UInt_t)((j+0.5)*secondsPerBin);
870 // 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)
871 Double_t dSMTemperature = GetTemperatureSM(iSM, timeStamp);
872
873 Double_t temperatureDiff = referenceTemperature - dSMTemperature; // old vs new
874 // if the new temperature is higher than the old/reference one, then the gain has gone down
875 if (fabs(temperatureDiff)>fTemperatureResolution) {
876 // significant enough difference that we need to consider it
877
878 // loop over all towers; effect of temperature change will depend on gain for this tower
879 for (iCol = 0; iCol < AliEMCALGeoParams::fgkEMCALCols; iCol++) {
880 for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) {
881
882 correction = temperatureDiff * dTempCoeff[iCol][iRow];
883 dataCalibTimeDepCorrection->GetCorrection(iCol,iRow)->AddAt(correction, j);
884 }
885 }
886
887 } // if noteworthy temperature change
888 else { // just set correction values to 1.0
889 correction = 1;
890 for (iCol = 0; iCol < AliEMCALGeoParams::fgkEMCALCols; iCol++) {
891 for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) {
892 dataCalibTimeDepCorrection->GetCorrection(iCol,iRow)->AddAt(correction, j);
893 }
894 }
895 } // else
896 } // j, Bins
897
898 } // if reference temperature exist
899 else { // could not do the needed check.. signal that in the return code
900 nRemaining += AliEMCALGeoParams::fgkEMCALCols * AliEMCALGeoParams::fgkEMCALRows * nBins;
901 }
902 } // iSM
903
904 return nRemaining;
905}
906