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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 | // // | |
24 | /////////////////////////////////////////////////////////////////////////////// | |
25 | ||
26 | #include <iostream> | |
27 | #include <TGraphSmooth.h> | |
28 | #include "AliLog.h" | |
29 | #include "AliCDBEntry.h" | |
30 | #include "AliCDBManager.h" | |
31 | #include "AliEMCALSensorTempArray.h" | |
32 | #include "AliCaloCalibSignal.h" | |
33 | #include "AliEMCALBiasAPD.h" | |
34 | #include "AliEMCALCalibMapAPD.h" | |
35 | #include "AliEMCALCalibAbs.h" | |
36 | #include "AliEMCALCalibTimeDepCorrection.h" | |
37 | #include "AliEMCALCalibTimeDep.h" | |
38 | ||
39 | /* first a bunch of constants.. */ | |
40 | const double fkSecToHour = 1.0/3600.0; // conversion factor from seconds to hours | |
41 | ||
42 | // some global variables for APD handling; values from Catania studies, best fit | |
43 | // TempCoeff = p0+p1*M (M=gain), where p0 and and p1 are functions of the dark current | |
44 | const double fkTempCoeffP0Const = -0.903; // | |
45 | const double fkTempCoeffP0Factor = -1.381e7; // | |
46 | const double fkTempCoeffP1Const = -0.023; // | |
47 | const double fkTempCoeffP1Factor = -4.966e5; // | |
48 | ||
49 | const double fkErrorCode = -999; // to indicate that something went wrong | |
50 | ||
51 | using namespace std; | |
52 | ||
53 | ClassImp(AliEMCALCalibTimeDep) | |
54 | ||
55 | //________________________________________________________________ | |
56 | AliEMCALCalibTimeDep::AliEMCALCalibTimeDep() : | |
57 | fRun(0), | |
58 | fStartTime(0), | |
59 | fEndTime(0), | |
60 | fMinTemp(0), | |
61 | fMaxTemp(0), | |
62 | fMinTime(0), | |
63 | fMaxTime(0), | |
64 | fTemperatureResolution(0.1), // 0.1 deg C is default | |
65 | fTimeBinsPerHour(2), // 2 30-min bins per hour is default | |
66 | fTempArray(NULL), | |
67 | fCalibSignal(NULL), | |
68 | fBiasAPD(NULL), | |
69 | fCalibMapAPD(NULL), | |
70 | fCalibAbs(NULL), | |
71 | fCalibTimeDepCorrection(NULL) | |
72 | { | |
73 | // Constructor | |
74 | } | |
75 | ||
76 | //________________________________________________________________ | |
77 | AliEMCALCalibTimeDep::AliEMCALCalibTimeDep(const AliEMCALCalibTimeDep& calibt) : | |
78 | TObject(calibt), | |
79 | fRun(calibt.GetRunNumber()), | |
80 | fStartTime(calibt.GetStartTime()), | |
81 | fEndTime(calibt.GetEndTime()), | |
82 | fMinTemp(calibt.GetMinTemp()), | |
83 | fMaxTemp(calibt.GetMaxTemp()), | |
84 | fMinTime(calibt.GetMinTime()), | |
85 | fMaxTime(calibt.GetMaxTime()), | |
86 | fTemperatureResolution(calibt.GetTemperatureResolution()), | |
87 | fTimeBinsPerHour(calibt.GetTimeBinsPerHour()), | |
88 | fTempArray(calibt.GetTempArray()), | |
89 | fCalibSignal(calibt.GetCalibSignal()), | |
90 | fBiasAPD(calibt.GetBiasAPD()), | |
91 | fCalibMapAPD(calibt.GetCalibMapAPD()), | |
92 | fCalibAbs(calibt.GetCalibAbs()), | |
93 | fCalibTimeDepCorrection(calibt.GetCalibTimeDepCorrection()) | |
94 | { | |
95 | // copy constructor | |
96 | } | |
97 | ||
98 | ||
99 | //________________________________________________________________ | |
100 | AliEMCALCalibTimeDep &AliEMCALCalibTimeDep::operator =(const AliEMCALCalibTimeDep& calibt) | |
101 | { | |
102 | // assignment operator; use copy ctor | |
103 | if (&calibt == this) return *this; | |
104 | ||
105 | new (this) AliEMCALCalibTimeDep(calibt); | |
106 | return *this; | |
107 | } | |
108 | ||
109 | //________________________________________________________________ | |
110 | AliEMCALCalibTimeDep::~AliEMCALCalibTimeDep() | |
111 | { | |
112 | // Destructor | |
113 | } | |
114 | ||
115 | //________________________________________________________________ | |
116 | void AliEMCALCalibTimeDep::Reset() | |
117 | { | |
118 | // clear variables to default | |
119 | fRun = 0; | |
120 | fStartTime = 0; | |
121 | fEndTime = 0; | |
122 | fMinTemp = 0; | |
123 | fMaxTemp = 0; | |
124 | fMinTime = 0; | |
125 | fMaxTime = 0; | |
126 | fTemperatureResolution = 0.1; // 0.1 deg C is default | |
127 | fTimeBinsPerHour = 2; // 2 30-min bins per hour is default | |
128 | fTempArray = NULL; | |
129 | fCalibSignal = NULL; | |
130 | fBiasAPD = NULL; | |
131 | fCalibMapAPD = NULL; | |
132 | fCalibAbs = NULL; | |
133 | fCalibTimeDepCorrection = NULL; | |
134 | return; | |
135 | } | |
136 | ||
137 | //________________________________________________________________ | |
138 | void AliEMCALCalibTimeDep::PrintInfo() const | |
139 | { | |
140 | // print some info | |
141 | cout << endl << " AliEMCALCalibTimeDep::PrintInfo() " << endl; | |
142 | // basic variables, all 'publicly available' also | |
143 | cout << " VARIABLE DUMP: " << endl | |
144 | << " GetStartTime() " << GetStartTime() << endl | |
145 | << " GetEndTime() " << GetEndTime() << endl | |
146 | << " GetMinTemp() " << GetMinTemp() << endl | |
147 | << " GetMaxTemp() " << GetMaxTemp() << endl; | |
148 | // run ranges | |
149 | cout << " RUN INFO: " << endl | |
150 | << " length (in hours) " << GetLengthOfRunInHours() << endl | |
151 | << " range of temperature measurements (in hours) " << GetRangeOfTempMeasureInHours() | |
152 | << " (in deg. C) " << GetRangeOfTempMeasureInDegrees() | |
153 | << endl; | |
154 | ||
155 | return; | |
156 | } | |
157 | ||
158 | //________________________________________________________________ | |
159 | Double_t AliEMCALCalibTimeDep::GetLengthOfRunInHours() const | |
160 | { | |
161 | return (fEndTime - fStartTime)*fkSecToHour; | |
162 | } | |
163 | ||
164 | //________________________________________________________________ | |
165 | Double_t AliEMCALCalibTimeDep::GetLengthOfRunInBins() const | |
166 | { | |
167 | return (fEndTime - fStartTime)*fkSecToHour*fTimeBinsPerHour; | |
168 | } | |
169 | ||
170 | //________________________________________________________________ | |
171 | Double_t AliEMCALCalibTimeDep::GetRangeOfTempMeasureInHours() const | |
172 | { | |
173 | return (fMaxTime - fMinTime)*fkSecToHour; | |
174 | } | |
175 | ||
176 | //________________________________________________________________ | |
177 | Double_t AliEMCALCalibTimeDep::GetRangeOfTempMeasureInDegrees() const | |
178 | { | |
179 | return (fMaxTemp - fMinTemp); | |
180 | } | |
181 | ||
182 | //________________________________________________________________ | |
183 | void AliEMCALCalibTimeDep::Initialize(Int_t run, | |
184 | UInt_t startTime, UInt_t endTime) | |
185 | { | |
186 | Reset(); // start fresh | |
187 | ||
188 | fRun = run; | |
189 | fStartTime = startTime; | |
190 | fEndTime = endTime; | |
191 | ||
192 | // collect the needed information | |
193 | GetTemperatureInfo(); // temperature readings during the run | |
194 | ScanTemperatureInfo(); // see what the boundaries are (Min/Max Time/Temp) | |
195 | ||
196 | return; | |
197 | } | |
198 | ||
199 | //________________________________________________________________ | |
200 | Double_t AliEMCALCalibTimeDep::GetTemperature(UInt_t timeStamp) const | |
201 | {// return estimate for all SuperModules and sensors, that had data | |
202 | ||
203 | // first convert from seconds to hours.. | |
204 | Double_t timeHour = (timeStamp - fStartTime) * fkSecToHour; | |
205 | ||
206 | Double_t average = 0; | |
207 | int n = 0; | |
208 | ||
209 | for (int i=0; i<fTempArray->NumSensors(); i++) { | |
210 | ||
211 | AliEMCALSensorTemp *st = fTempArray->GetSensor(i); | |
212 | ||
213 | // check if we had valid data for the time that is being asked for | |
214 | if ( timeStamp>=st->GetStartTime() && timeStamp<=st->GetEndTime() ) { | |
215 | AliSplineFit *f = st->GetFit(); | |
216 | if (f) { // ok, looks like we have valid data/info | |
217 | // let's check what the expected value at the time appears to be | |
218 | Double_t val = f->Eval(timeHour); | |
219 | average += val; | |
220 | n++; | |
221 | } | |
222 | } // time | |
223 | } // loop over fTempArray | |
224 | ||
225 | if (n>0) { // some valid data was found | |
226 | average /= n; | |
227 | return average; | |
228 | } | |
229 | else { // no good data | |
230 | return fkErrorCode; | |
231 | } | |
232 | ||
233 | } | |
234 | ||
235 | //________________________________________________________________ | |
236 | Double_t AliEMCALCalibTimeDep::GetTemperatureSM(int imod, UInt_t timeStamp) const | |
237 | {// return estimate for this one SuperModule, if it had data | |
238 | ||
239 | // first convert from seconds to hours.. | |
240 | Double_t timeHour = (timeStamp - fStartTime) * fkSecToHour; | |
241 | ||
242 | Double_t average = 0; | |
243 | int n = 0; | |
244 | ||
245 | for (int i=0; i<fTempArray->NumSensors(); i++) { | |
246 | ||
247 | AliEMCALSensorTemp *st = fTempArray->GetSensor(i); | |
248 | int module = st->GetSector()*2 + st->GetSide(); | |
249 | if ( module == imod ) { // right module | |
250 | // check if we had valid data for the time that is being asked for | |
251 | if ( timeStamp>=st->GetStartTime() && timeStamp<=st->GetEndTime() ) { | |
252 | AliSplineFit *f = st->GetFit(); | |
253 | if (f) { // ok, looks like we have valid data/info | |
254 | // let's check what the expected value at the time appears to be | |
255 | Double_t val = f->Eval(timeHour); | |
256 | cout << " i " << i << " val " << val << endl; | |
257 | average += val; | |
258 | n++; | |
259 | } | |
260 | } // time | |
261 | } | |
262 | ||
263 | } // loop over fTempArray | |
264 | ||
265 | if (n>0) { // some valid data was found | |
266 | average /= n; | |
267 | return average; | |
268 | } | |
269 | else { // no good data | |
270 | return fkErrorCode; | |
271 | } | |
272 | ||
273 | } | |
274 | ||
275 | //________________________________________________________________ | |
276 | Double_t AliEMCALCalibTimeDep::GetTemperatureSMSensor(int imod, int isens, UInt_t timeStamp) const | |
277 | {// return estimate for this one SuperModule and sensor, if it had data | |
278 | ||
279 | // first convert from seconds to hours.. | |
280 | Double_t timeHour = (timeStamp - fStartTime) * fkSecToHour; | |
281 | ||
282 | for (int i=0; i<fTempArray->NumSensors(); i++) { | |
283 | ||
284 | AliEMCALSensorTemp *st = fTempArray->GetSensor(i); | |
285 | int module = st->GetSector()*2 + st->GetSide(); | |
286 | if ( module == imod && st->GetNum()==isens ) { // right module, and sensor | |
287 | // check if we had valid data for the time that is being asked for | |
288 | if ( timeStamp>=st->GetStartTime() && timeStamp<=st->GetEndTime() ) { | |
289 | AliSplineFit *f = st->GetFit(); | |
290 | if (f) { // ok, looks like we have valid data/info | |
291 | // let's check what the expected value at the time appears to be | |
292 | Double_t val = f->Eval(timeHour); | |
293 | ||
294 | return val; // no point to move further in for loop, we have found the sensor we were looking for | |
295 | } | |
296 | } // time | |
297 | } | |
298 | ||
299 | } // loop over fTempArray | |
300 | ||
301 | // if we made it all here, it means that we didn't find the sensor we were looking for | |
302 | // i.e. no good data | |
303 | return fkErrorCode; | |
304 | ||
305 | } | |
306 | ||
307 | //________________________________________________________________ | |
308 | Int_t AliEMCALCalibTimeDep::CalcCorrection() | |
309 | { // OK, this is where the real action takes place - the heart of this class.. | |
310 | /* The philosophy is as follows: | |
311 | 0. Init corrections to 1.0 values | |
312 | 1: if we have LED info for the tower, use it | |
313 | 2. if not 1, we rely on LED info averaged over strip | |
314 | 3. if not 2 either, we try to use temperature info + APD bias and calibration info | |
315 | */ | |
316 | ||
317 | // 0: Init | |
318 | // how many SuperModules do we have? | |
319 | Int_t nSM = fCalibAbs->GetNSuperModule(); | |
320 | // how many time-bins should we have for this run? | |
321 | Int_t nBins = (Int_t) GetLengthOfRunInBins(); // round-down (from double to int) | |
322 | Int_t binSize = (Int_t) (3600/fTimeBinsPerHour); // in seconds | |
323 | // set up a reasonable default (correction = 1.0) | |
324 | fCalibTimeDepCorrection->InitCorrection(nSM, nBins, 1.0); | |
325 | fCalibTimeDepCorrection->SetStartTime(fStartTime); | |
326 | fCalibTimeDepCorrection->SetNTimeBins(nBins); | |
327 | fCalibTimeDepCorrection->SetTimeBinSize(binSize); | |
328 | ||
329 | // 1+2: try with LED corrections | |
330 | Int_t nRemaining = CalcLEDCorrection(nSM, nBins); | |
331 | ||
332 | // 3: try with Temperature, if needed | |
333 | if (nRemaining>0) { | |
334 | nRemaining = CalcTemperatureCorrection(nSM, nBins); | |
335 | } | |
336 | ||
337 | return nRemaining; | |
338 | } | |
339 | ||
340 | ||
341 | //________________________________________________________________ | |
342 | Double_t AliEMCALCalibTimeDep::GetTempCoeff(Double_t IDark, Double_t M) const | |
343 | { // estimate the Temperature Coefficient, based on the dark current (IDark) | |
344 | // and the gain (M), based on Catania parameterizations | |
345 | ||
346 | Double_t P0 = fkTempCoeffP0Const + fkTempCoeffP0Factor * IDark; | |
347 | Double_t P1 = fkTempCoeffP1Const + fkTempCoeffP1Factor * IDark; | |
348 | ||
349 | Double_t TC = P0 + P1*M; | |
350 | ||
351 | return TC; | |
352 | } | |
353 | ||
354 | /* Next come the methods that do the work in picking up all the needed info..*/ | |
355 | //________________________________________________________________ | |
356 | void AliEMCALCalibTimeDep::GetTemperatureInfo() | |
357 | { | |
358 | // pick up Preprocessor output, based on fRun (most recent version) | |
359 | AliCDBEntry* entry = AliCDBManager::Instance()->Get("EMCAL/Calib/Temperature", fRun); | |
360 | if (entry) { | |
361 | fTempArray = (AliEMCALSensorTempArray *) entry->GetObject(); | |
362 | } | |
363 | ||
364 | if (fTempArray) { | |
365 | AliInfo( Form("NumSensors %d - IdDCS: first %d last %d", | |
366 | fTempArray->NumSensors(), | |
367 | fTempArray->GetFirstIdDCS(), fTempArray->GetLastIdDCS() ) ); | |
368 | } | |
369 | else { | |
370 | AliWarning( Form("AliEMCALSensorTempArray not found!") ); | |
371 | } | |
372 | ||
373 | return; | |
374 | } | |
375 | ||
376 | //________________________________________________________________ | |
377 | Int_t AliEMCALCalibTimeDep::ScanTemperatureInfo() | |
378 | {// assign max/min time and temperature values | |
379 | ||
380 | fMinTemp = 999; // init to some large value (999 deg C) | |
381 | fMaxTemp = 0; | |
382 | fMinTime = 2147483647; // init to a large value in the far future (0x7fffffff), year 2038 times.. | |
383 | fMaxTime = 0; | |
384 | ||
385 | Int_t n = 0; // number of valid readings | |
386 | ||
387 | for (int i=0; i<fTempArray->NumSensors(); i++) { | |
388 | ||
389 | AliEMCALSensorTemp *st = fTempArray->GetSensor(i); | |
390 | ||
391 | // check time ranges | |
392 | if (fMinTime > st->GetStartTime()) { fMinTime = st->GetStartTime(); } | |
393 | if (fMaxTime < st->GetEndTime()) { fMaxTime = st->GetEndTime(); } | |
394 | ||
395 | // check temperature ranges | |
396 | TGraph *g = st->GetGraph(); | |
397 | if (g) { // ok, looks like we have valid data/info | |
398 | // let's check what the expected value at the time appears to be | |
399 | if (fMinTemp > g->GetMinimum()) { fMinTemp = g->GetMinimum(); } | |
400 | if (fMaxTemp < g->GetMaximum()) { fMaxTemp = g->GetMaximum(); } | |
401 | n++; | |
402 | } | |
403 | } // loop over fTempArray | |
404 | ||
405 | if (n>0) { // some valid data was found | |
406 | return n; | |
407 | } | |
408 | else { // no good data | |
409 | return (Int_t) fkErrorCode; | |
410 | } | |
411 | ||
412 | } | |
413 | ||
414 | //________________________________________________________________ | |
415 | void AliEMCALCalibTimeDep::GetCalibSignalInfo() | |
416 | { | |
417 | // pick up Preprocessor output, based on fRun (most recent version) | |
418 | AliCDBEntry* entry = AliCDBManager::Instance()->Get("EMCAL/Calib/LED", fRun); | |
419 | if (entry) { | |
420 | fCalibSignal = (AliCaloCalibSignal *) entry->GetObject(); | |
421 | } | |
422 | ||
423 | if (fCalibSignal) { | |
424 | AliInfo( Form("CalibSignal: NEvents %d NAcceptedEvents %d Entries %d AvgEntries LEDRefEntries %d LEDRefAvgEntries %d", | |
425 | fCalibSignal->GetNEvents(), fCalibSignal->GetNAcceptedEvents(), | |
426 | fCalibSignal->GetTreeAmpVsTime()->GetEntries(), | |
427 | fCalibSignal->GetTreeAvgAmpVsTime()->GetEntries(), | |
428 | fCalibSignal->GetTreeLEDAmpVsTime()->GetEntries(), | |
429 | fCalibSignal->GetTreeLEDAvgAmpVsTime()->GetEntries() ) ); | |
430 | } | |
431 | else { | |
432 | AliWarning( Form("AliCaloCalibSignal not found!") ); | |
433 | } | |
434 | ||
435 | return; | |
436 | } | |
437 | ||
438 | //________________________________________________________________ | |
439 | void AliEMCALCalibTimeDep::GetBiasAPDInfo() | |
440 | { | |
441 | // pick up Preprocessor output, based on fRun (most recent version) | |
442 | AliCDBEntry* entry = AliCDBManager::Instance()->Get("EMCAL/Calib/BiasAPD", fRun); | |
443 | if (entry) { | |
444 | fBiasAPD->ReadTreeBiasAPDInfo( (TTree *) entry->GetObject() ); | |
445 | } | |
446 | ||
447 | if (fBiasAPD) { | |
448 | AliInfo( Form("BiasAPD: NSuperModule %d ", fBiasAPD->GetNSuperModule() ) ); | |
449 | } | |
450 | else { | |
451 | AliWarning( Form("AliEMCALBiasAPD not found!") ); | |
452 | } | |
453 | ||
454 | return; | |
455 | } | |
456 | ||
457 | //________________________________________________________________ | |
458 | void AliEMCALCalibTimeDep::GetCalibMapAPDInfo() | |
459 | { | |
460 | // pick up Preprocessor output, based on fRun (most recent version) | |
461 | AliCDBEntry* entry = AliCDBManager::Instance()->Get("EMCAL/Calib/MapAPD", fRun); | |
462 | // stored object should be a TTree; read the info | |
463 | if (entry) { | |
464 | fCalibMapAPD->ReadTreeCalibMapAPDInfo( (TTree *) entry->GetObject() ); | |
465 | } | |
466 | ||
467 | if (fCalibMapAPD) { | |
468 | AliInfo( Form("CalibMapAPD: NSuperModule %d ", fCalibMapAPD->GetNSuperModule() ) ); | |
469 | } | |
470 | else { | |
471 | AliWarning( Form("AliEMCALCalibMapAPD not found!") ); | |
472 | } | |
473 | ||
474 | return; | |
475 | } | |
476 | ||
477 | //________________________________________________________________ | |
478 | void AliEMCALCalibTimeDep::GetCalibAbsInfo() | |
479 | { | |
480 | // pick up Preprocessor output, based on fRun (most recent version) | |
481 | AliCDBEntry* entry = AliCDBManager::Instance()->Get("EMCAL/Calib/MapAPD", fRun); | |
482 | if (entry) { | |
483 | fCalibAbs->ReadTreeCalibAbsInfo( (TTree *) entry->GetObject() ); | |
484 | } | |
485 | ||
486 | if (fCalibAbs) { | |
487 | AliInfo( Form("CalibAbs: NSuperModule %d ", fCalibAbs->GetNSuperModule() ) ); | |
488 | } | |
489 | else { | |
490 | AliWarning( Form("AliEMCALCalibAbs not found!") ); | |
491 | } | |
492 | ||
493 | return; | |
494 | } | |
495 | ||
496 | //________________________________________________________________ | |
497 | Int_t AliEMCALCalibTimeDep::CalcLEDCorrection(Int_t nSM, Int_t nBins) | |
498 | {// Construct normalized ratios R(t)=LED(t)/LEDRef(t), for current time T and calibration time t0 | |
499 | // The correction factor we keep is c(T) = R(t0)/R(T) | |
500 | // T info from fCalibSignal, t0 info from fCalibAbs | |
501 | ||
502 | // NOTE: for now we don't use the RMS info either from fCalibSignal or fCalibAbs | |
503 | // but one could upgrade this in the future | |
504 | Int_t nRemaining = 0; // we count the towers for which we could not get valid data | |
505 | ||
506 | // sanity check; same SuperModule indices for corrections as for regular calibrations | |
507 | AliEMCALSuperModuleCalibAbs * CalibAbsData = fCalibAbs->GetSuperModuleData(); | |
508 | AliEMCALSuperModuleCalibTimeDepCorrection * CalibTimeDepCorrectionData = fCalibTimeDepCorrection->GetSuperModuleData(); | |
509 | ||
510 | for (int i = 0; i < nSM; i++) { | |
511 | int iSMAbs = CalibAbsData[i].fSuperModuleNum; | |
512 | int iSMCorr = CalibTimeDepCorrectionData[i].fSuperModuleNum; | |
513 | if (iSMAbs != iSMCorr) { | |
514 | AliWarning( Form("AliEMCALCalibTimeDep - SuperModule index mismatch: %d != %d", iSMAbs, iSMCorr) ); | |
515 | nRemaining = nSM * AliEMCALGeoParams::fgkEMCALCols * AliEMCALGeoParams::fgkEMCALRows * nBins; | |
516 | return nRemaining; | |
517 | } | |
518 | } | |
519 | ||
520 | int iSM = 0; | |
521 | int iCol = 0; | |
522 | int iRow = 0; | |
523 | int iStrip = 0; | |
524 | int iGain = 0; | |
525 | ||
526 | // The fCalibSignal info is stored in TTrees | |
527 | // Note that the time-bins for the TTree's may not exactly match with our correction time bins | |
528 | int timeDiff = fCalibSignal->GetStartTime() - fStartTime; // in seconds | |
529 | // fCalibSignal time info in seconds: Hour/fkSecToHour | |
530 | // corrected for startTime difference: Hour/fkSecToHour + timeDiff | |
531 | // converted into a time-bin we use: (Hour + timeDiff*fkSecToHour) * fTimeBinsPerHour | |
532 | ||
533 | // values for R(T), size of TArray = nBins | |
534 | // the [2] dimension below is for the low or high gain | |
535 | TArrayF ampT[AliEMCALGeoParams::fgkEMCALModules][AliEMCALGeoParams::fgkEMCALCols][AliEMCALGeoParams::fgkEMCALRows][2]; | |
536 | TArrayF nT[AliEMCALGeoParams::fgkEMCALModules][AliEMCALGeoParams::fgkEMCALCols][AliEMCALGeoParams::fgkEMCALRows][2]; | |
537 | TArrayF ampLEDRefT[AliEMCALGeoParams::fgkEMCALModules][AliEMCALGeoParams::fgkEMCALLEDRefs][2]; | |
538 | TArrayF nLEDRefT[AliEMCALGeoParams::fgkEMCALModules][AliEMCALGeoParams::fgkEMCALLEDRefs][2]; | |
539 | ||
540 | // set up TArray's first | |
541 | for (iSM = 0; iSM < AliEMCALGeoParams::fgkEMCALModules; iSM++) { | |
542 | for (iCol = 0; iCol < AliEMCALGeoParams::fgkEMCALCols; iCol++) { | |
543 | for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) { | |
544 | for (iGain = 0; iGain < 2; iGain++) { | |
545 | // length of arrays | |
546 | ampT[iSM][iCol][iRow][iGain].Set(nBins); | |
547 | nT[iSM][iCol][iRow][iGain].Set(nBins); | |
548 | // content of arrys | |
549 | for (int j = 0; j < nBins; j++) { | |
550 | ampT[iSM][iCol][iRow][iGain].AddAt(0, j); | |
551 | nT[iSM][iCol][iRow][iGain].AddAt(0, j); | |
552 | } | |
553 | } | |
554 | } | |
555 | }//iCol | |
556 | for (iStrip = 0; iStrip < AliEMCALGeoParams::fgkEMCALLEDRefs; iStrip++) { | |
557 | for (iGain = 0; iGain < 2; iGain++) { | |
558 | // length of arrays | |
559 | ampLEDRefT[iSM][iStrip][iGain].Set(nBins); | |
560 | nLEDRefT[iSM][iStrip][iGain].Set(nBins); | |
561 | // content of arrys | |
562 | for (int j = 0; j < nBins; j++) { | |
563 | ampLEDRefT[iSM][iStrip][iGain].AddAt(0, j); | |
564 | nLEDRefT[iSM][iStrip][iGain].AddAt(0, j); | |
565 | } | |
566 | } | |
567 | }//iStrip | |
568 | } | |
569 | ||
570 | // OK, now loop over the TTrees and fill the arrays needed for R(T) | |
571 | TTree *TAvg = fCalibSignal->GetTreeAvgAmpVsTime(); | |
572 | TTree *TLEDRefAvg = fCalibSignal->GetTreeAvgAmpVsTime(); | |
573 | ||
574 | int ChannelNum; // for regular towers | |
575 | int RefNum; // for LED | |
576 | double Hour; | |
577 | double AvgAmp; | |
578 | ||
579 | TAvg->SetBranchAddress("fChannelNum", &ChannelNum); | |
580 | TAvg->SetBranchAddress("fHour", &Hour); | |
581 | TAvg->SetBranchAddress("fAvgAmp",&AvgAmp); | |
582 | ||
583 | int iBin = 0; | |
584 | // counters for how many values were seen per SuperModule | |
585 | int nCount[AliEMCALGeoParams::fgkEMCALModules] = {0}; | |
586 | int nCountLEDRef[AliEMCALGeoParams::fgkEMCALModules] = {0}; | |
587 | ||
588 | for (int ient=0; ient<TAvg->GetEntries(); ient++) { | |
589 | TAvg->GetEntry(ient); | |
590 | // figure out where this info comes from | |
591 | fCalibSignal->DecodeChannelNum(ChannelNum, &iSM, &iCol, &iRow, &iGain); | |
592 | iBin = (int) ( (Hour + timeDiff*fkSecToHour) * fTimeBinsPerHour ); // CHECK!!! | |
593 | // add value in the arrays | |
594 | ampT[iSM][iCol][iRow][iGain].AddAt( ampT[iSM][iCol][iRow][iGain].At(iBin)+AvgAmp, iBin ); | |
595 | nT[iSM][iCol][iRow][iGain].AddAt( nT[iSM][iCol][iRow][iGain].At(iBin)+1, iBin ); | |
596 | nCount[iSM]++; | |
597 | } | |
598 | ||
599 | TLEDRefAvg->SetBranchAddress("fRefNum", &RefNum); | |
600 | TLEDRefAvg->SetBranchAddress("fHour", &Hour); | |
601 | TLEDRefAvg->SetBranchAddress("fAvgAmp",&AvgAmp); | |
602 | ||
603 | for (int ient=0; ient<TLEDRefAvg->GetEntries(); ient++) { | |
604 | TLEDRefAvg->GetEntry(ient); | |
605 | // figure out where this info comes from | |
606 | fCalibSignal->DecodeRefNum(RefNum, &iSM, &iStrip, &iGain); | |
607 | iBin = (int) ( (Hour + timeDiff*fkSecToHour) * fTimeBinsPerHour ); // CHECK!!! | |
608 | // add value in the arrays | |
609 | ampLEDRefT[iSM][iStrip][iGain].AddAt( ampLEDRefT[iSM][iStrip][iGain].At(iBin)+AvgAmp, iBin ); | |
610 | nLEDRefT[iSM][iStrip][iGain].AddAt( nLEDRefT[iSM][iStrip][iGain].At(iBin)+1, iBin ); | |
611 | nCountLEDRef[iSM]++; | |
612 | } | |
613 | ||
614 | // Normalize TArray values, and calculate average also | |
615 | Float_t norm = 0; // extra var, for readability | |
616 | ||
617 | for (iSM = 0; iSM < AliEMCALGeoParams::fgkEMCALModules; iSM++) { | |
618 | if (nCount[iSM]>0 && nCountLEDRef[iSM]>0) { // avoid SuperModules with no data.. | |
619 | for (iCol = 0; iCol < AliEMCALGeoParams::fgkEMCALCols; iCol++) { | |
620 | // iStrip = AliEMCALGeoParams::GetStripModule(iSM, iCol); | |
621 | iStrip = (iSM%2==0) ? iCol/2 : AliEMCALGeoParams::fgkEMCALLEDRefs - 1 - iCol/2; //TMP, FIXME | |
622 | for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) { | |
623 | for (iGain = 0; iGain < 2; iGain++) { | |
624 | // content of arrys | |
625 | for (int j = 0; j < nBins; j++) { | |
626 | if (nT[iSM][iCol][iRow][iGain].At(j) > 0) { | |
627 | norm = ampT[iSM][iCol][iRow][iGain].At(j) / nT[iSM][iCol][iRow][iGain].At(j); | |
628 | ampT[iSM][iCol][iRow][iGain].AddAt(norm, j); // AddAt = SetAt | |
629 | } | |
630 | } | |
631 | } | |
632 | } | |
633 | }//iCol | |
634 | for (iStrip = 0; iStrip < AliEMCALGeoParams::fgkEMCALLEDRefs; iStrip++) { | |
635 | for (iGain = 0; iGain < 2; iGain++) { | |
636 | for (int j = 0; j < nBins; j++) { | |
637 | if (nLEDRefT[iSM][iStrip][iGain].At(j) > 0) { | |
638 | norm = ampLEDRefT[iSM][iStrip][iGain].At(j) / nLEDRefT[iSM][iStrip][iGain].At(j); | |
639 | ampLEDRefT[iSM][iStrip][iGain].AddAt(norm, j); // AddAt = SetAt | |
640 | } | |
641 | } | |
642 | } | |
643 | }//iStrip | |
644 | } | |
645 | } // iSM | |
646 | ||
647 | ||
648 | // Calculate correction values, and store them | |
649 | // set fkErrorCode values for those that could not be set | |
650 | ||
651 | Float_t Rt0 = 0; | |
652 | Float_t RT = 0; | |
653 | Float_t correction = 0; // c(T) = R(t0)/R(T) | |
654 | Int_t refGain = 0; // typically use low gain for LED reference amplitude (high gain typically well beyond saturation) | |
655 | ||
656 | for (int i = 0; i < nSM; i++) { | |
657 | iSM = CalibAbsData[i].fSuperModuleNum; | |
658 | for (iCol = 0; iCol < AliEMCALGeoParams::fgkEMCALCols; iCol++) { | |
659 | // iStrip = AliEMCALGeoParams::GetStripModule(iSM, iCol); | |
660 | iStrip = (iSM%2==0) ? iCol/2 : AliEMCALGeoParams::fgkEMCALLEDRefs - 1 - iCol/2; //TMP, FIXME | |
661 | for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) { | |
662 | ||
663 | // Calc. R(t0): | |
664 | AliEMCALCalibAbsVal &v = CalibAbsData[i].fAPDVal[iCol][iRow]; | |
665 | iGain = v.fHighLow; // gain value used for abs. calibration | |
666 | refGain = CalibAbsData[i].fLEDRefHighLow[iStrip]; // LED reference gain value used for abs. calibration | |
667 | ||
668 | // valid amplitude values should be larger than 0 | |
669 | if (v.fLEDAmp>0 && CalibAbsData[i].fLEDRefAmp[iStrip]>0) { | |
670 | Rt0 = v.fLEDAmp / CalibAbsData[i].fLEDRefAmp[iStrip]; | |
671 | } | |
672 | else { | |
673 | Rt0 = fkErrorCode; | |
674 | } | |
675 | ||
676 | // Cal R(T) | |
677 | for (int j = 0; j < nBins; j++) { | |
678 | ||
679 | // calculate R(T) also; first try with individual tower: | |
680 | // same gain as for abs. calibration is the default | |
681 | if (ampT[iSM][iCol][iRow][iGain].At(j)>0 && ampLEDRefT[iSM][iStrip][refGain].At(j)>0) { | |
682 | // looks like valid data with the right gain combination | |
683 | RT = ampT[iSM][iCol][iRow][iGain].At(j) / ampLEDRefT[iSM][iStrip][refGain].At(j); | |
684 | ||
685 | // if data appears to be saturated, and we are in high gain, then try with low gain instead | |
686 | if ( (ampT[iSM][iCol][iRow][iGain].At(j)>AliEMCALGeoParams::fgkOverflowCut && iGain==1) || | |
687 | (ampLEDRefT[iSM][iStrip][refGain].At(j)>AliEMCALGeoParams::fgkOverflowCut && refGain==1) ) { // presumably the gains should then both be changed.. can look into possibly only changing one in the future | |
688 | RT = ampT[iSM][iCol][iRow][0].At(j) / ampLEDRefT[iSM][iStrip][0].At(j); | |
689 | RT *= v.fHighLowRatio/CalibAbsData[i].fLEDRefHighLowRatio[iStrip]; // compensate for using different gain than in the absolute calibration | |
690 | } | |
691 | } | |
692 | else { | |
693 | RT = fkErrorCode; | |
694 | } | |
695 | ||
696 | // Calc. correction factor | |
697 | if (Rt0>0 && RT>0) { | |
698 | correction = Rt0/RT; | |
699 | } | |
700 | else { | |
701 | correction = fkErrorCode; | |
702 | nRemaining++; | |
703 | } | |
704 | ||
705 | // Store the value | |
706 | CalibTimeDepCorrectionData[i].fCorrection[iCol][iRow].AddAt(correction, j); | |
707 | /* Check that | |
708 | fTimeDepCorrection->SetCorrection(i, iCol, iRow, j, correction); | |
709 | also works OK */ | |
710 | } // nBins | |
711 | } | |
712 | } | |
713 | } | |
714 | ||
715 | nRemaining = CalcLEDCorrectionStripBasis(nSM, nBins); | |
716 | return nRemaining; | |
717 | } | |
718 | ||
719 | //________________________________________________________________ | |
720 | Int_t AliEMCALCalibTimeDep::CalcLEDCorrectionStripBasis(Int_t nSM, Int_t nBins) | |
721 | { // use averages for each strip if no good values exist for some single tower | |
722 | ||
723 | // go over fTimeDepCorrection info | |
724 | Int_t nRemaining = 0; // we count the towers for which we could not get valid data | |
725 | ||
726 | AliEMCALSuperModuleCalibTimeDepCorrection * CalibTimeDepCorrectionData = fCalibTimeDepCorrection->GetSuperModuleData(); | |
727 | ||
728 | // for calculating StripAverage info | |
729 | int nValidTower = 0; | |
730 | Float_t StripAverage = 0; | |
731 | Float_t val = 0; | |
732 | ||
733 | int iSM = 0; | |
734 | int iCol = 0; | |
735 | int iRow = 0; | |
736 | int iStrip = 0; | |
737 | int firstCol = 0; | |
738 | int lastCol = 0; | |
739 | ||
740 | for (int i = 0; i < nSM; i++) { | |
741 | iSM = CalibTimeDepCorrectionData[i].fSuperModuleNum; | |
742 | for (int j = 0; j < nBins; j++) { | |
743 | ||
744 | nValidTower = 0; | |
745 | StripAverage = 0; | |
746 | ||
747 | for (iStrip = 0; iStrip < AliEMCALGeoParams::fgkEMCALLEDRefs; iStrip++) { | |
748 | firstCol = iStrip*2; | |
749 | if ((iSM%2)==1) { // C side | |
750 | firstCol = (AliEMCALGeoParams::fgkEMCALLEDRefs-1 - iStrip)*2; | |
751 | } | |
752 | lastCol = firstCol+1; | |
753 | ||
754 | for (iCol = firstCol; iCol <= lastCol; iCol++) { | |
755 | for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) { | |
756 | val = CalibTimeDepCorrectionData[i].fCorrection[iCol][iRow].At(j); | |
757 | if (val>0) { // valid value; error code is negative | |
758 | StripAverage += val; | |
759 | nValidTower++; | |
760 | } | |
761 | } | |
762 | } | |
763 | ||
764 | // calc average over strip | |
765 | if (nValidTower>0) { | |
766 | StripAverage /= nValidTower; | |
767 | for (iCol = firstCol; iCol <= lastCol; iCol++) { | |
768 | for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) { | |
769 | val = CalibTimeDepCorrectionData[i].fCorrection[iCol][iRow].At(j); | |
770 | if (val<0) { // invalid value; error code is negative | |
771 | CalibTimeDepCorrectionData[i].fCorrection[iCol][iRow].AddAt(val, j); | |
772 | } | |
773 | } | |
774 | } | |
775 | } | |
776 | else { // could not fill in unvalid entries | |
777 | nRemaining += 2*AliEMCALGeoParams::fgkEMCALRows; | |
778 | } | |
779 | ||
780 | } // iStrip | |
781 | } // j, bins | |
782 | } // iSM | |
783 | ||
784 | return nRemaining; | |
785 | } | |
786 | ||
787 | //________________________________________________________________ | |
788 | Int_t AliEMCALCalibTimeDep::CalcTemperatureCorrection(Int_t nSM, Int_t nBins) | |
789 | { // OK, so we didn't have valid LED data that allowed us to do the correction only | |
790 | // with that info. | |
791 | // So, instead we'll rely on the temperature info and try to do the correction | |
792 | // based on that instead. | |
793 | // For this, we'll need the info from 3 classes (+temperature array), and output the values in a 4th class | |
794 | Int_t nRemaining = 0; | |
795 | ||
796 | // info containers | |
797 | AliEMCALSuperModuleBiasAPD * BiasAPDData = fBiasAPD->GetSuperModuleData(); | |
798 | AliEMCALSuperModuleCalibMapAPD * CalibMapAPDData = fCalibMapAPD->GetSuperModuleData(); | |
799 | AliEMCALSuperModuleCalibAbs * CalibAbsData = fCalibAbs->GetSuperModuleData(); | |
800 | // correction container | |
801 | AliEMCALSuperModuleCalibTimeDepCorrection * CalibTimeDepCorrectionData = fCalibTimeDepCorrection->GetSuperModuleData(); | |
802 | ||
803 | int iSM = 0; | |
804 | int iCol = 0; | |
805 | int iRow = 0; | |
806 | ||
807 | Double_t TempCoeff[AliEMCALGeoParams::fgkEMCALCols][AliEMCALGeoParams::fgkEMCALRows]; | |
808 | memset(TempCoeff, 0, sizeof(TempCoeff)); | |
809 | Float_t MGain = 0; | |
810 | Double_t correction = 0; | |
811 | Double_t secondsPerBin = (3600/fTimeBinsPerHour); | |
812 | ||
813 | for (int i = 0; i < nSM; i++) { | |
814 | iSM = CalibTimeDepCorrectionData[i].fSuperModuleNum; | |
815 | ||
816 | // first calculate the M=Gain values, and TemperatureCoeff, for all towers in this SuperModule, from BiasAPD and CalibMapAPD info | |
817 | for (iCol = 0; iCol < AliEMCALGeoParams::fgkEMCALCols; iCol++) { | |
818 | for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) { | |
819 | AliEMCALCalibMapAPDVal &mapAPD = CalibMapAPDData[i].fAPDVal[iCol][iRow]; | |
820 | MGain = fCalibMapAPD->GetGain(mapAPD.fPar[0], mapAPD.fPar[1], mapAPD.fPar[2], | |
821 | BiasAPDData[i].fVoltage[iCol][iRow]); | |
822 | TempCoeff[iCol][iRow] = GetTempCoeff(mapAPD.fDarkCurrent, MGain); | |
823 | } | |
824 | } | |
825 | ||
826 | // figure out what the reference temperature is, from fCalibAbs | |
827 | Double_t ReferenceTemperature = 0; | |
828 | int nVal = 0; | |
829 | for (int iSensor = 0; iSensor<AliEMCALGeoParams::fgkEMCALTempSensors ; iSensor++) { | |
830 | if (CalibAbsData[i].fTemperature[iSensor]>0) { // hopefully OK value | |
831 | ReferenceTemperature += CalibAbsData[i].fTemperature[iSensor]; | |
832 | nVal++; | |
833 | } | |
834 | } | |
835 | ||
836 | if (nVal>0) { | |
837 | ReferenceTemperature /= nVal; // valid values exist, we can look into corrections | |
838 | ||
839 | for (int j = 0; j < nBins; j++) { | |
840 | ||
841 | // what is the timestamp in the middle of this bin? (0.5 is for middle of bin) | |
842 | UInt_t timeStamp = fStartTime + (UInt_t)((j+0.5)*secondsPerBin); | |
843 | // 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) | |
844 | Double_t SMTemperature = GetTemperatureSM(iSM, timeStamp); | |
845 | ||
846 | Double_t TemperatureDiff = ReferenceTemperature - SMTemperature; // old vs new | |
847 | // if the new temperature is higher than the old/reference one, then the gain has gone down | |
848 | if (fabs(TemperatureDiff)>fTemperatureResolution) { | |
849 | // significant enough difference that we need to consider it | |
850 | ||
851 | // loop over all towers; effect of temperature change will depend on gain for this tower | |
852 | for (iCol = 0; iCol < AliEMCALGeoParams::fgkEMCALCols; iCol++) { | |
853 | for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) { | |
854 | ||
855 | correction = TemperatureDiff * TempCoeff[iCol][iRow]; | |
856 | CalibTimeDepCorrectionData[i].fCorrection[iCol][iRow].AddAt(correction, j); | |
857 | } | |
858 | } | |
859 | ||
860 | } // if noteworthy temperature change | |
861 | else { // just set correction values to 1.0 | |
862 | correction = 1; | |
863 | for (iCol = 0; iCol < AliEMCALGeoParams::fgkEMCALCols; iCol++) { | |
864 | for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) { | |
865 | CalibTimeDepCorrectionData[i].fCorrection[iCol][iRow].AddAt(correction, j); | |
866 | } | |
867 | } | |
868 | } // else | |
869 | } // j, Bins | |
870 | ||
871 | } // if reference temperature exist | |
872 | else { // could not do the needed check.. signal that in the return code | |
873 | nRemaining += AliEMCALGeoParams::fgkEMCALCols * AliEMCALGeoParams::fgkEMCALRows * nBins; | |
874 | } | |
875 | } // iSM | |
876 | ||
877 | return nRemaining; | |
878 | } | |
879 |