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a42992b7 | 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 | // // | |
0ce5c45d | 22 | // class for EMCAL time-dep calibration |
23 | // - supposed to run in preprocessor | |
24 | // we use input from the following sources: | |
ed3db319 | 25 | // AliEMCALCalibTempCoeff (APD temperature coefficients), |
0ce5c45d | 26 | // AliCaloCalibSignal (LED DA), AliEMCALSensorTempArray (ELMB DCS) |
27 | // AliEMCALCalibReference: LED amplitude and temperature info at reference time | |
28 | // | |
29 | // output/result is in AliEMCALCalibTimeDepCorrection | |
a42992b7 | 30 | // // |
31 | /////////////////////////////////////////////////////////////////////////////// | |
32 | ||
33 | #include <iostream> | |
34 | #include <TGraphSmooth.h> | |
e1a60af4 | 35 | #include <TMath.h> |
a42992b7 | 36 | #include "AliLog.h" |
37 | #include "AliCDBEntry.h" | |
38 | #include "AliCDBManager.h" | |
39 | #include "AliEMCALSensorTempArray.h" | |
d81e6423 | 40 | #include "AliCaloCalibSignal.h" |
ed3db319 | 41 | #include "AliEMCALCalibTempCoeff.h" |
82d90a2f | 42 | #include "AliEMCALCalibReference.h" |
d81e6423 | 43 | #include "AliEMCALCalibTimeDepCorrection.h" |
a42992b7 | 44 | #include "AliEMCALCalibTimeDep.h" |
45 | ||
46 | /* first a bunch of constants.. */ | |
0ce5c45d | 47 | const double kSecToHour = 1.0/3600.0; // conversion factor from seconds to hours |
a42992b7 | 48 | |
d81e6423 | 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 | |
0ce5c45d | 51 | const double kTempCoeffP0Const = -0.903; // |
52 | const double kTempCoeffP0Factor = -1.381e7; // | |
53 | const double kTempCoeffP1Const = -0.023; // | |
54 | const double kTempCoeffP1Factor = -4.966e5; // | |
d81e6423 | 55 | |
1740b16f | 56 | const double kTempMaxDiffMedian = 2; // Temperature values should not be further away from median value within SM when considered in the average calc. |
57 | ||
0ce5c45d | 58 | const double kErrorCode = -999; // to indicate that something went wrong |
621ff010 | 59 | |
a42992b7 | 60 | using namespace std; |
61 | ||
62 | ClassImp(AliEMCALCalibTimeDep) | |
63 | ||
64 | //________________________________________________________________ | |
65 | AliEMCALCalibTimeDep::AliEMCALCalibTimeDep() : | |
66 | fRun(0), | |
67 | fStartTime(0), | |
68 | fEndTime(0), | |
69 | fMinTemp(0), | |
70 | fMaxTemp(0), | |
716fca62 | 71 | fMinTempVariation(0), |
72 | fMaxTempVariation(0), | |
1740b16f | 73 | fMinTempValid(15), |
74 | fMaxTempValid(35), | |
a42992b7 | 75 | fMinTime(0), |
76 | fMaxTime(0), | |
d81e6423 | 77 | fTemperatureResolution(0.1), // 0.1 deg C is default |
ed3db319 | 78 | fMaxTemperatureDiff(5), // 5 deg C is default max diff relative to reference |
d81e6423 | 79 | fTimeBinsPerHour(2), // 2 30-min bins per hour is default |
82d90a2f | 80 | fHighLowGainFactor(16), // factor ~16 between High gain and low gain |
d81e6423 | 81 | fTempArray(NULL), |
82 | fCalibSignal(NULL), | |
ed3db319 | 83 | fCalibTempCoeff(NULL), |
82d90a2f | 84 | fCalibReference(NULL), |
716fca62 | 85 | fCalibTimeDepCorrection(NULL), |
86 | fVerbosity(0) | |
a42992b7 | 87 | { |
88 | // Constructor | |
89 | } | |
90 | ||
91 | //________________________________________________________________ | |
92 | AliEMCALCalibTimeDep::AliEMCALCalibTimeDep(const AliEMCALCalibTimeDep& calibt) : | |
621ff010 | 93 | TObject(calibt), |
a42992b7 | 94 | fRun(calibt.GetRunNumber()), |
95 | fStartTime(calibt.GetStartTime()), | |
96 | fEndTime(calibt.GetEndTime()), | |
97 | fMinTemp(calibt.GetMinTemp()), | |
98 | fMaxTemp(calibt.GetMaxTemp()), | |
716fca62 | 99 | fMinTempVariation(calibt.GetMinTempVariation()), |
100 | fMaxTempVariation(calibt.GetMaxTempVariation()), | |
1740b16f | 101 | fMinTempValid(calibt.GetMinTempValid()), |
102 | fMaxTempValid(calibt.GetMaxTempValid()), | |
a42992b7 | 103 | fMinTime(calibt.GetMinTime()), |
104 | fMaxTime(calibt.GetMaxTime()), | |
d81e6423 | 105 | fTemperatureResolution(calibt.GetTemperatureResolution()), |
ed3db319 | 106 | fMaxTemperatureDiff(calibt.GetMaxTemperatureDiff()), |
d81e6423 | 107 | fTimeBinsPerHour(calibt.GetTimeBinsPerHour()), |
82d90a2f | 108 | fHighLowGainFactor(calibt.GetHighLowGainFactor()), |
d81e6423 | 109 | fTempArray(calibt.GetTempArray()), |
110 | fCalibSignal(calibt.GetCalibSignal()), | |
ed3db319 | 111 | fCalibTempCoeff(calibt.GetCalibTempCoeff()), |
82d90a2f | 112 | fCalibReference(calibt.GetCalibReference()), |
716fca62 | 113 | fCalibTimeDepCorrection(calibt.GetCalibTimeDepCorrection()), |
114 | fVerbosity(calibt.GetVerbosity()) | |
a42992b7 | 115 | { |
116 | // copy constructor | |
117 | } | |
118 | ||
119 | ||
120 | //________________________________________________________________ | |
121 | AliEMCALCalibTimeDep &AliEMCALCalibTimeDep::operator =(const AliEMCALCalibTimeDep& calibt) | |
122 | { | |
123 | // assignment operator; use copy ctor | |
124 | if (&calibt == this) return *this; | |
125 | ||
126 | new (this) AliEMCALCalibTimeDep(calibt); | |
127 | return *this; | |
128 | } | |
129 | ||
130 | //________________________________________________________________ | |
131 | AliEMCALCalibTimeDep::~AliEMCALCalibTimeDep() | |
132 | { | |
133 | // Destructor | |
134 | } | |
135 | ||
136 | //________________________________________________________________ | |
137 | void AliEMCALCalibTimeDep::Reset() | |
138 | { | |
139 | // clear variables to default | |
140 | fRun = 0; | |
141 | fStartTime = 0; | |
142 | fEndTime = 0; | |
143 | fMinTemp = 0; | |
144 | fMaxTemp = 0; | |
716fca62 | 145 | fMinTempVariation = 0; |
146 | fMaxTempVariation = 0; | |
1740b16f | 147 | fMinTempValid = 15; |
148 | fMaxTempValid = 35; | |
a42992b7 | 149 | fMinTime = 0; |
150 | fMaxTime = 0; | |
d81e6423 | 151 | fTemperatureResolution = 0.1; // 0.1 deg C is default |
ed3db319 | 152 | fMaxTemperatureDiff = 5; // 5 deg C is default max diff relative to reference |
d81e6423 | 153 | fTimeBinsPerHour = 2; // 2 30-min bins per hour is default |
a42992b7 | 154 | fTempArray = NULL; |
d81e6423 | 155 | fCalibSignal = NULL; |
ed3db319 | 156 | fCalibTempCoeff = NULL; |
82d90a2f | 157 | fCalibReference = NULL; |
d81e6423 | 158 | fCalibTimeDepCorrection = NULL; |
716fca62 | 159 | fVerbosity = 0; |
a42992b7 | 160 | return; |
161 | } | |
162 | ||
163 | //________________________________________________________________ | |
621ff010 | 164 | void AliEMCALCalibTimeDep::PrintInfo() const |
a42992b7 | 165 | { |
166 | // print some info | |
d81e6423 | 167 | cout << endl << " AliEMCALCalibTimeDep::PrintInfo() " << endl; |
a42992b7 | 168 | // basic variables, all 'publicly available' also |
169 | cout << " VARIABLE DUMP: " << endl | |
170 | << " GetStartTime() " << GetStartTime() << endl | |
171 | << " GetEndTime() " << GetEndTime() << endl | |
716fca62 | 172 | << " GetMinTime() " << GetMinTime() << endl |
173 | << " GetMaxTime() " << GetMaxTime() << endl | |
a42992b7 | 174 | << " GetMinTemp() " << GetMinTemp() << endl |
716fca62 | 175 | << " GetMaxTemp() " << GetMaxTemp() << endl |
176 | << " GetMinTempVariation() " << GetMinTempVariation() << endl | |
1740b16f | 177 | << " GetMaxTempVariation() " << GetMaxTempVariation() << endl |
178 | << " GetTemperatureResolution() " << GetTemperatureResolution() << endl; | |
a42992b7 | 179 | // run ranges |
180 | cout << " RUN INFO: " << endl | |
716fca62 | 181 | << " runnumber " << GetRunNumber() << endl |
a42992b7 | 182 | << " length (in hours) " << GetLengthOfRunInHours() << endl |
ed3db319 | 183 | << " length (in bins) " << GetLengthOfRunInBins() << endl |
a42992b7 | 184 | << " range of temperature measurements (in hours) " << GetRangeOfTempMeasureInHours() |
185 | << " (in deg. C) " << GetRangeOfTempMeasureInDegrees() | |
186 | << endl; | |
a42992b7 | 187 | |
188 | return; | |
189 | } | |
d81e6423 | 190 | |
a42992b7 | 191 | //________________________________________________________________ |
d81e6423 | 192 | Double_t AliEMCALCalibTimeDep::GetLengthOfRunInHours() const |
a42992b7 | 193 | { |
0ce5c45d | 194 | return (fEndTime - fStartTime)*kSecToHour; |
a42992b7 | 195 | } |
d81e6423 | 196 | |
197 | //________________________________________________________________ | |
198 | Double_t AliEMCALCalibTimeDep::GetLengthOfRunInBins() const | |
199 | { | |
0ce5c45d | 200 | return (fEndTime - fStartTime)*kSecToHour*fTimeBinsPerHour; |
d81e6423 | 201 | } |
202 | ||
a42992b7 | 203 | //________________________________________________________________ |
d81e6423 | 204 | Double_t AliEMCALCalibTimeDep::GetRangeOfTempMeasureInHours() const |
a42992b7 | 205 | { |
0ce5c45d | 206 | return (fMaxTime - fMinTime)*kSecToHour; |
a42992b7 | 207 | } |
d81e6423 | 208 | |
a42992b7 | 209 | //________________________________________________________________ |
d81e6423 | 210 | Double_t AliEMCALCalibTimeDep::GetRangeOfTempMeasureInDegrees() const |
a42992b7 | 211 | { |
212 | return (fMaxTemp - fMinTemp); | |
213 | } | |
214 | ||
215 | //________________________________________________________________ | |
216 | void AliEMCALCalibTimeDep::Initialize(Int_t run, | |
217 | UInt_t startTime, UInt_t endTime) | |
0ce5c45d | 218 | { // setup, and get temperature info |
a42992b7 | 219 | Reset(); // start fresh |
220 | ||
221 | fRun = run; | |
222 | fStartTime = startTime; | |
223 | fEndTime = endTime; | |
224 | ||
225 | // collect the needed information | |
226 | GetTemperatureInfo(); // temperature readings during the run | |
d81e6423 | 227 | ScanTemperatureInfo(); // see what the boundaries are (Min/Max Time/Temp) |
a42992b7 | 228 | |
229 | return; | |
230 | } | |
231 | ||
a42992b7 | 232 | //________________________________________________________________ |
d81e6423 | 233 | Double_t AliEMCALCalibTimeDep::GetTemperatureSM(int imod, UInt_t timeStamp) const |
a42992b7 | 234 | {// return estimate for this one SuperModule, if it had data |
235 | ||
236 | // first convert from seconds to hours.. | |
0ce5c45d | 237 | Double_t timeHour = (timeStamp - fStartTime) * kSecToHour; |
621ff010 | 238 | |
621ff010 | 239 | int n = 0; |
1740b16f | 240 | Double_t valArr[8]={0}; // 8 sensors per SM |
621ff010 | 241 | |
242 | for (int i=0; i<fTempArray->NumSensors(); i++) { | |
243 | ||
244 | AliEMCALSensorTemp *st = fTempArray->GetSensor(i); | |
245 | int module = st->GetSector()*2 + st->GetSide(); | |
246 | if ( module == imod ) { // right module | |
247 | // check if we had valid data for the time that is being asked for | |
248 | if ( timeStamp>=st->GetStartTime() && timeStamp<=st->GetEndTime() ) { | |
249 | AliSplineFit *f = st->GetFit(); | |
250 | if (f) { // ok, looks like we have valid data/info | |
251 | // let's check what the expected value at the time appears to be | |
d81e6423 | 252 | Double_t val = f->Eval(timeHour); |
716fca62 | 253 | if ( fVerbosity > 0 ) { |
254 | cout << " sensor i " << i << " val " << val << endl; | |
255 | } | |
1740b16f | 256 | if (val>fMinTempValid && val<fMaxTempValid && n<8) { |
257 | valArr[n] = val; | |
258 | n++; | |
259 | } | |
621ff010 | 260 | } |
261 | } // time | |
262 | } | |
263 | ||
264 | } // loop over fTempArray | |
265 | ||
266 | if (n>0) { // some valid data was found | |
1740b16f | 267 | Double_t median = TMath::Median(n, valArr); |
268 | Double_t average = 0; | |
269 | Int_t nval = 0; | |
270 | for (int is=0; is<n; is++) { | |
271 | if (TMath::Abs(valArr[is] - median) < kTempMaxDiffMedian) { | |
272 | average += valArr[is]; | |
273 | nval++; | |
274 | } | |
275 | } | |
276 | if (nval > 0) { | |
277 | average /= nval; | |
278 | return average; | |
279 | } | |
280 | else { // this case should not happen, but kept for completeness (coverity etc) | |
281 | return median; | |
282 | } | |
621ff010 | 283 | } |
284 | else { // no good data | |
0ce5c45d | 285 | return kErrorCode; |
621ff010 | 286 | } |
a42992b7 | 287 | |
a42992b7 | 288 | } |
289 | ||
a42992b7 | 290 | //________________________________________________________________ |
d81e6423 | 291 | Int_t AliEMCALCalibTimeDep::CalcCorrection() |
292 | { // OK, this is where the real action takes place - the heart of this class.. | |
293 | /* The philosophy is as follows: | |
716fca62 | 294 | 0. Init corrections to 1.0 values, and see how many correction bins we need |
295 | 1. Check how large temperature variations we have through the run - do we really need all the correction bias (otherwise adjust to single bin) | |
ed3db319 | 296 | 2. try to use temperature info + APD temperature coefficient info, to estimate correction. |
297 | For now (from Dec 2009), we do not use LED info. | |
d81e6423 | 298 | */ |
299 | ||
300 | // 0: Init | |
301 | // how many SuperModules do we have? | |
82d90a2f | 302 | Int_t nSM = fCalibReference->GetNSuperModule(); |
d81e6423 | 303 | // how many time-bins should we have for this run? |
ed3db319 | 304 | Int_t nBins = (Int_t) (GetLengthOfRunInBins() + 1); // round-up (from double to int; always at least 1) |
220ed45a | 305 | Int_t binSize = (Int_t) (3600/fTimeBinsPerHour); // in seconds |
716fca62 | 306 | |
307 | // 1: get info on how much individual sensors might have changed during | |
308 | // the run (compare max-min for each sensor separately) | |
309 | if (fMaxTempVariation < fTemperatureResolution) { | |
310 | nBins = 1; // just one bin needed.. | |
2c62d6a3 | 311 | } |
312 | if (nBins == 1) { | |
716fca62 | 313 | binSize = fEndTime - fStartTime; |
314 | } | |
1740b16f | 315 | if (fVerbosity > 0) { |
2c62d6a3 | 316 | cout << " nBins " << nBins << " binSize " << binSize << endl; |
317 | } | |
716fca62 | 318 | |
d81e6423 | 319 | // set up a reasonable default (correction = 1.0) |
716fca62 | 320 | fCalibTimeDepCorrection = new AliEMCALCalibTimeDepCorrection(nSM); |
d81e6423 | 321 | fCalibTimeDepCorrection->InitCorrection(nSM, nBins, 1.0); |
220ed45a | 322 | fCalibTimeDepCorrection->SetStartTime(fStartTime); |
323 | fCalibTimeDepCorrection->SetNTimeBins(nBins); | |
324 | fCalibTimeDepCorrection->SetTimeBinSize(binSize); | |
d81e6423 | 325 | |
716fca62 | 326 | // 2: try with Temperature correction |
327 | Int_t nRemaining = CalcTemperatureCorrection(nSM, nBins, binSize); | |
d81e6423 | 328 | |
329 | return nRemaining; | |
a42992b7 | 330 | } |
331 | ||
d81e6423 | 332 | |
333 | //________________________________________________________________ | |
334 | Double_t AliEMCALCalibTimeDep::GetTempCoeff(Double_t IDark, Double_t M) const | |
335 | { // estimate the Temperature Coefficient, based on the dark current (IDark) | |
336 | // and the gain (M), based on Catania parameterizations | |
337 | ||
0ce5c45d | 338 | Double_t dP0 = kTempCoeffP0Const + kTempCoeffP0Factor * IDark; |
339 | Double_t dP1 = kTempCoeffP1Const + kTempCoeffP1Factor * IDark; | |
d81e6423 | 340 | |
0ce5c45d | 341 | Double_t dTC = dP0 + dP1*M; |
ed3db319 | 342 | // from % numbers to regular ones..: |
343 | dTC *= 0.01; | |
d81e6423 | 344 | |
e1a60af4 | 345 | return TMath::Abs(dTC); // return the absolute value, to avoid any sign confusion |
d81e6423 | 346 | } |
347 | ||
348 | /* Next come the methods that do the work in picking up all the needed info..*/ | |
a42992b7 | 349 | //________________________________________________________________ |
350 | void AliEMCALCalibTimeDep::GetTemperatureInfo() | |
351 | { | |
352 | // pick up Preprocessor output, based on fRun (most recent version) | |
353 | AliCDBEntry* entry = AliCDBManager::Instance()->Get("EMCAL/Calib/Temperature", fRun); | |
354 | if (entry) { | |
355 | fTempArray = (AliEMCALSensorTempArray *) entry->GetObject(); | |
356 | } | |
357 | ||
621ff010 | 358 | if (fTempArray) { |
a42992b7 | 359 | AliInfo( Form("NumSensors %d - IdDCS: first %d last %d", |
360 | fTempArray->NumSensors(), | |
361 | fTempArray->GetFirstIdDCS(), fTempArray->GetLastIdDCS() ) ); | |
621ff010 | 362 | } |
363 | else { | |
364 | AliWarning( Form("AliEMCALSensorTempArray not found!") ); | |
a42992b7 | 365 | } |
366 | ||
367 | return; | |
368 | } | |
d81e6423 | 369 | |
370 | //________________________________________________________________ | |
371 | Int_t AliEMCALCalibTimeDep::ScanTemperatureInfo() | |
372 | {// assign max/min time and temperature values | |
373 | ||
374 | fMinTemp = 999; // init to some large value (999 deg C) | |
375 | fMaxTemp = 0; | |
716fca62 | 376 | fMinTempVariation = 999; // init to some large value (999 deg C) |
377 | fMaxTempVariation = 0; | |
d81e6423 | 378 | fMinTime = 2147483647; // init to a large value in the far future (0x7fffffff), year 2038 times.. |
379 | fMaxTime = 0; | |
380 | ||
381 | Int_t n = 0; // number of valid readings | |
382 | ||
383 | for (int i=0; i<fTempArray->NumSensors(); i++) { | |
384 | ||
385 | AliEMCALSensorTemp *st = fTempArray->GetSensor(i); | |
716fca62 | 386 | if ( st->GetStartTime() == 0 ) { // no valid data |
387 | continue; | |
388 | } | |
d81e6423 | 389 | |
390 | // check time ranges | |
391 | if (fMinTime > st->GetStartTime()) { fMinTime = st->GetStartTime(); } | |
392 | if (fMaxTime < st->GetEndTime()) { fMaxTime = st->GetEndTime(); } | |
716fca62 | 393 | |
d81e6423 | 394 | // check temperature ranges |
716fca62 | 395 | AliSplineFit *f = st->GetFit(); |
396 | ||
397 | if (f) { // ok, looks like we have valid data/info | |
398 | int np = f->GetKnots(); | |
399 | Double_t *y0 = f->GetY0(); | |
400 | // min and max values within the single sensor | |
401 | Double_t min = 999; | |
402 | Double_t max = 0; | |
1740b16f | 403 | int nval = 0; |
716fca62 | 404 | for (int ip=0; ip<np; ip++) { |
1740b16f | 405 | if (y0[ip]>fMinTempValid && y0[ip]<fMaxTempValid) { |
406 | if (min > y0[ip]) { min = y0[ip]; } | |
407 | if (max < y0[ip]) { max = y0[ip]; } | |
408 | nval++; | |
409 | } | |
410 | } | |
411 | if (nval>0) { | |
412 | if (fMinTemp > min) { fMinTemp = min; } | |
413 | if (fMaxTemp < max) { fMaxTemp = max; } | |
414 | Double_t variation = max - min; | |
415 | if (fMinTempVariation > variation) { fMinTempVariation = variation; } | |
416 | if (fMaxTempVariation < variation) { fMaxTempVariation = variation; } | |
417 | ||
418 | n++; | |
716fca62 | 419 | } |
d81e6423 | 420 | } |
421 | } // loop over fTempArray | |
422 | ||
423 | if (n>0) { // some valid data was found | |
424 | return n; | |
425 | } | |
426 | else { // no good data | |
0ce5c45d | 427 | return (Int_t) kErrorCode; |
d81e6423 | 428 | } |
429 | ||
430 | } | |
431 | ||
432 | //________________________________________________________________ | |
433 | void AliEMCALCalibTimeDep::GetCalibSignalInfo() | |
434 | { | |
435 | // pick up Preprocessor output, based on fRun (most recent version) | |
436 | AliCDBEntry* entry = AliCDBManager::Instance()->Get("EMCAL/Calib/LED", fRun); | |
437 | if (entry) { | |
438 | fCalibSignal = (AliCaloCalibSignal *) entry->GetObject(); | |
439 | } | |
440 | ||
441 | if (fCalibSignal) { | |
29b7e56e | 442 | AliInfo( Form("CalibSignal: NEvents %d NAcceptedEvents %d Entries %lld AvgEntries LEDRefEntries %lld LEDRefEntries %lld, LEDRefAvgEntries %lld", |
d81e6423 | 443 | fCalibSignal->GetNEvents(), fCalibSignal->GetNAcceptedEvents(), |
444 | fCalibSignal->GetTreeAmpVsTime()->GetEntries(), | |
445 | fCalibSignal->GetTreeAvgAmpVsTime()->GetEntries(), | |
29b7e56e | 446 | fCalibSignal->GetTreeLEDAmpVsTime()->GetEntries(), |
d81e6423 | 447 | fCalibSignal->GetTreeLEDAvgAmpVsTime()->GetEntries() ) ); |
448 | } | |
449 | else { | |
450 | AliWarning( Form("AliCaloCalibSignal not found!") ); | |
451 | } | |
452 | ||
453 | return; | |
454 | } | |
455 | ||
456 | //________________________________________________________________ | |
ed3db319 | 457 | void AliEMCALCalibTimeDep::GetCalibTempCoeffInfo() |
d81e6423 | 458 | { |
459 | // pick up Preprocessor output, based on fRun (most recent version) | |
ed3db319 | 460 | AliCDBEntry* entry = AliCDBManager::Instance()->Get("EMCAL/Calib/TempCoeff", fRun); |
61917ab3 | 461 | // stored object should be a TTree; read the info |
d81e6423 | 462 | if (entry) { |
ed3db319 | 463 | fCalibTempCoeff = (AliEMCALCalibTempCoeff *) entry->GetObject(); |
d81e6423 | 464 | } |
465 | ||
ed3db319 | 466 | if (fCalibTempCoeff) { |
467 | AliInfo( Form("CalibTempCoeff: NSuperModule %d ", fCalibTempCoeff->GetNSuperModule() ) ); | |
d81e6423 | 468 | } |
469 | else { | |
ed3db319 | 470 | AliWarning( Form("AliEMCALCalibTempCoeff not found!") ); |
d81e6423 | 471 | } |
472 | ||
473 | return; | |
474 | } | |
475 | ||
476 | //________________________________________________________________ | |
82d90a2f | 477 | void AliEMCALCalibTimeDep::GetCalibReferenceInfo() |
d81e6423 | 478 | { |
479 | // pick up Preprocessor output, based on fRun (most recent version) | |
716fca62 | 480 | AliCDBEntry* entry = AliCDBManager::Instance()->Get("EMCAL/Calib/Reference", fRun); |
d81e6423 | 481 | if (entry) { |
82d90a2f | 482 | fCalibReference = (AliEMCALCalibReference *) entry->GetObject(); |
d81e6423 | 483 | } |
484 | ||
82d90a2f | 485 | if (fCalibReference) { |
486 | AliInfo( Form("CalibReference: NSuperModule %d ", fCalibReference->GetNSuperModule() ) ); | |
d81e6423 | 487 | } |
488 | else { | |
82d90a2f | 489 | AliWarning( Form("AliEMCALCalibReference not found!") ); |
d81e6423 | 490 | } |
491 | ||
492 | return; | |
493 | } | |
494 | ||
495 | //________________________________________________________________ | |
496 | Int_t AliEMCALCalibTimeDep::CalcLEDCorrection(Int_t nSM, Int_t nBins) | |
497 | {// Construct normalized ratios R(t)=LED(t)/LEDRef(t), for current time T and calibration time t0 | |
498 | // The correction factor we keep is c(T) = R(t0)/R(T) | |
82d90a2f | 499 | // T info from fCalibSignal, t0 info from fCalibReference |
d81e6423 | 500 | |
82d90a2f | 501 | // NOTE: for now we don't use the RMS info either from fCalibSignal or fCalibReference |
d81e6423 | 502 | // but one could upgrade this in the future |
503 | Int_t nRemaining = 0; // we count the towers for which we could not get valid data | |
504 | ||
505 | // sanity check; same SuperModule indices for corrections as for regular calibrations | |
d81e6423 | 506 | for (int i = 0; i < nSM; i++) { |
0ce5c45d | 507 | AliEMCALSuperModuleCalibReference * dataCalibReference = fCalibReference->GetSuperModuleCalibReferenceNum(i); |
508 | AliEMCALSuperModuleCalibTimeDepCorrection * dataCalibTimeDepCorrection = fCalibTimeDepCorrection->GetSuperModuleCalibTimeDepCorrectionNum(i); | |
2f17a269 | 509 | |
0ce5c45d | 510 | int iSMRef = dataCalibReference->GetSuperModuleNum(); |
511 | int iSMCorr = dataCalibTimeDepCorrection->GetSuperModuleNum(); | |
82d90a2f | 512 | if (iSMRef != iSMCorr) { |
513 | AliWarning( Form("AliEMCALCalibTimeDep - SuperModule index mismatch: %d != %d", iSMRef, iSMCorr) ); | |
d81e6423 | 514 | nRemaining = nSM * AliEMCALGeoParams::fgkEMCALCols * AliEMCALGeoParams::fgkEMCALRows * nBins; |
515 | return nRemaining; | |
516 | } | |
517 | } | |
518 | ||
519 | int iSM = 0; | |
520 | int iCol = 0; | |
521 | int iRow = 0; | |
522 | int iStrip = 0; | |
523 | int iGain = 0; | |
524 | ||
525 | // The fCalibSignal info is stored in TTrees | |
526 | // Note that the time-bins for the TTree's may not exactly match with our correction time bins | |
527 | int timeDiff = fCalibSignal->GetStartTime() - fStartTime; // in seconds | |
0ce5c45d | 528 | // fCalibSignal time info in seconds: Hour/kSecToHour |
529 | // corrected for startTime difference: Hour/kSecToHour + timeDiff | |
530 | // converted into a time-bin we use: (Hour + timeDiff*kSecToHour) * fTimeBinsPerHour | |
d81e6423 | 531 | |
532 | // values for R(T), size of TArray = nBins | |
533 | // the [2] dimension below is for the low or high gain | |
534 | TArrayF ampT[AliEMCALGeoParams::fgkEMCALModules][AliEMCALGeoParams::fgkEMCALCols][AliEMCALGeoParams::fgkEMCALRows][2]; | |
535 | TArrayF nT[AliEMCALGeoParams::fgkEMCALModules][AliEMCALGeoParams::fgkEMCALCols][AliEMCALGeoParams::fgkEMCALRows][2]; | |
536 | TArrayF ampLEDRefT[AliEMCALGeoParams::fgkEMCALModules][AliEMCALGeoParams::fgkEMCALLEDRefs][2]; | |
537 | TArrayF nLEDRefT[AliEMCALGeoParams::fgkEMCALModules][AliEMCALGeoParams::fgkEMCALLEDRefs][2]; | |
538 | ||
539 | // set up TArray's first | |
540 | for (iSM = 0; iSM < AliEMCALGeoParams::fgkEMCALModules; iSM++) { | |
541 | for (iCol = 0; iCol < AliEMCALGeoParams::fgkEMCALCols; iCol++) { | |
542 | for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) { | |
543 | for (iGain = 0; iGain < 2; iGain++) { | |
544 | // length of arrays | |
545 | ampT[iSM][iCol][iRow][iGain].Set(nBins); | |
546 | nT[iSM][iCol][iRow][iGain].Set(nBins); | |
547 | // content of arrys | |
548 | for (int j = 0; j < nBins; j++) { | |
549 | ampT[iSM][iCol][iRow][iGain].AddAt(0, j); | |
550 | nT[iSM][iCol][iRow][iGain].AddAt(0, j); | |
551 | } | |
552 | } | |
553 | } | |
554 | }//iCol | |
555 | for (iStrip = 0; iStrip < AliEMCALGeoParams::fgkEMCALLEDRefs; iStrip++) { | |
556 | for (iGain = 0; iGain < 2; iGain++) { | |
557 | // length of arrays | |
558 | ampLEDRefT[iSM][iStrip][iGain].Set(nBins); | |
559 | nLEDRefT[iSM][iStrip][iGain].Set(nBins); | |
560 | // content of arrys | |
561 | for (int j = 0; j < nBins; j++) { | |
562 | ampLEDRefT[iSM][iStrip][iGain].AddAt(0, j); | |
563 | nLEDRefT[iSM][iStrip][iGain].AddAt(0, j); | |
564 | } | |
565 | } | |
566 | }//iStrip | |
567 | } | |
568 | ||
569 | // OK, now loop over the TTrees and fill the arrays needed for R(T) | |
0ce5c45d | 570 | TTree *treeAvg = fCalibSignal->GetTreeAvgAmpVsTime(); |
571 | TTree *treeLEDRefAvg = fCalibSignal->GetTreeAvgAmpVsTime(); | |
d81e6423 | 572 | |
18831b6c | 573 | int iChannelNum = 0; // for regular towers |
574 | int iRefNum = 0; // for LED | |
575 | double dHour = 0; | |
576 | double dAvgAmp = 0; | |
d81e6423 | 577 | |
0ce5c45d | 578 | treeAvg->SetBranchAddress("fChannelNum", &iChannelNum); |
579 | treeAvg->SetBranchAddress("fHour", &dHour); | |
580 | treeAvg->SetBranchAddress("fAvgAmp",&dAvgAmp); | |
d81e6423 | 581 | |
582 | int iBin = 0; | |
583 | // counters for how many values were seen per SuperModule | |
584 | int nCount[AliEMCALGeoParams::fgkEMCALModules] = {0}; | |
585 | int nCountLEDRef[AliEMCALGeoParams::fgkEMCALModules] = {0}; | |
586 | ||
0ce5c45d | 587 | for (int ient=0; ient<treeAvg->GetEntries(); ient++) { |
588 | treeAvg->GetEntry(ient); | |
d81e6423 | 589 | // figure out where this info comes from |
0ce5c45d | 590 | fCalibSignal->DecodeChannelNum(iChannelNum, &iSM, &iCol, &iRow, &iGain); |
591 | iBin = (int) ( (dHour + timeDiff*kSecToHour) * fTimeBinsPerHour ); // CHECK!!! | |
d81e6423 | 592 | // add value in the arrays |
0ce5c45d | 593 | ampT[iSM][iCol][iRow][iGain].AddAt( ampT[iSM][iCol][iRow][iGain].At(iBin)+dAvgAmp, iBin ); |
d81e6423 | 594 | nT[iSM][iCol][iRow][iGain].AddAt( nT[iSM][iCol][iRow][iGain].At(iBin)+1, iBin ); |
595 | nCount[iSM]++; | |
596 | } | |
597 | ||
0ce5c45d | 598 | treeLEDRefAvg->SetBranchAddress("fRefNum", &iRefNum); |
599 | treeLEDRefAvg->SetBranchAddress("fHour", &dHour); | |
600 | treeLEDRefAvg->SetBranchAddress("fAvgAmp",&dAvgAmp); | |
d81e6423 | 601 | |
0ce5c45d | 602 | for (int ient=0; ient<treeLEDRefAvg->GetEntries(); ient++) { |
603 | treeLEDRefAvg->GetEntry(ient); | |
d81e6423 | 604 | // figure out where this info comes from |
0ce5c45d | 605 | fCalibSignal->DecodeRefNum(iRefNum, &iSM, &iStrip, &iGain); |
606 | iBin = (int) ( (dHour + timeDiff*kSecToHour) * fTimeBinsPerHour ); // CHECK!!! | |
d81e6423 | 607 | // add value in the arrays |
0ce5c45d | 608 | ampLEDRefT[iSM][iStrip][iGain].AddAt( ampLEDRefT[iSM][iStrip][iGain].At(iBin)+dAvgAmp, iBin ); |
d81e6423 | 609 | nLEDRefT[iSM][iStrip][iGain].AddAt( nLEDRefT[iSM][iStrip][iGain].At(iBin)+1, iBin ); |
610 | nCountLEDRef[iSM]++; | |
611 | } | |
612 | ||
613 | // Normalize TArray values, and calculate average also | |
614 | Float_t norm = 0; // extra var, for readability | |
615 | ||
616 | for (iSM = 0; iSM < AliEMCALGeoParams::fgkEMCALModules; iSM++) { | |
617 | if (nCount[iSM]>0 && nCountLEDRef[iSM]>0) { // avoid SuperModules with no data.. | |
618 | for (iCol = 0; iCol < AliEMCALGeoParams::fgkEMCALCols; iCol++) { | |
619 | // iStrip = AliEMCALGeoParams::GetStripModule(iSM, iCol); | |
620 | iStrip = (iSM%2==0) ? iCol/2 : AliEMCALGeoParams::fgkEMCALLEDRefs - 1 - iCol/2; //TMP, FIXME | |
621 | for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) { | |
622 | for (iGain = 0; iGain < 2; iGain++) { | |
623 | // content of arrys | |
624 | for (int j = 0; j < nBins; j++) { | |
625 | if (nT[iSM][iCol][iRow][iGain].At(j) > 0) { | |
626 | norm = ampT[iSM][iCol][iRow][iGain].At(j) / nT[iSM][iCol][iRow][iGain].At(j); | |
627 | ampT[iSM][iCol][iRow][iGain].AddAt(norm, j); // AddAt = SetAt | |
628 | } | |
629 | } | |
630 | } | |
631 | } | |
632 | }//iCol | |
633 | for (iStrip = 0; iStrip < AliEMCALGeoParams::fgkEMCALLEDRefs; iStrip++) { | |
634 | for (iGain = 0; iGain < 2; iGain++) { | |
635 | for (int j = 0; j < nBins; j++) { | |
636 | if (nLEDRefT[iSM][iStrip][iGain].At(j) > 0) { | |
637 | norm = ampLEDRefT[iSM][iStrip][iGain].At(j) / nLEDRefT[iSM][iStrip][iGain].At(j); | |
638 | ampLEDRefT[iSM][iStrip][iGain].AddAt(norm, j); // AddAt = SetAt | |
639 | } | |
640 | } | |
641 | } | |
642 | }//iStrip | |
643 | } | |
644 | } // iSM | |
645 | ||
646 | ||
647 | // Calculate correction values, and store them | |
0ce5c45d | 648 | // set kErrorCode values for those that could not be set |
d81e6423 | 649 | |
0ce5c45d | 650 | Float_t ratiot0 = 0; |
651 | Float_t ratioT = 0; | |
d81e6423 | 652 | Float_t correction = 0; // c(T) = R(t0)/R(T) |
653 | Int_t refGain = 0; // typically use low gain for LED reference amplitude (high gain typically well beyond saturation) | |
654 | ||
655 | for (int i = 0; i < nSM; i++) { | |
0ce5c45d | 656 | AliEMCALSuperModuleCalibReference * dataCalibReference = fCalibReference->GetSuperModuleCalibReferenceNum(i); |
657 | AliEMCALSuperModuleCalibTimeDepCorrection * dataCalibTimeDepCorrection = fCalibTimeDepCorrection->GetSuperModuleCalibTimeDepCorrectionNum(i); | |
658 | iSM = dataCalibReference->GetSuperModuleNum(); | |
2f17a269 | 659 | |
d81e6423 | 660 | for (iCol = 0; iCol < AliEMCALGeoParams::fgkEMCALCols; iCol++) { |
661 | // iStrip = AliEMCALGeoParams::GetStripModule(iSM, iCol); | |
662 | iStrip = (iSM%2==0) ? iCol/2 : AliEMCALGeoParams::fgkEMCALLEDRefs - 1 - iCol/2; //TMP, FIXME | |
0ce5c45d | 663 | refGain = dataCalibReference->GetLEDRefHighLow(iStrip); // LED reference gain value used for reference calibration |
82d90a2f | 664 | |
d81e6423 | 665 | for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) { |
666 | ||
667 | // Calc. R(t0): | |
0ce5c45d | 668 | AliEMCALCalibReferenceVal * refVal = dataCalibReference->GetAPDVal(iCol, iRow); |
82d90a2f | 669 | iGain = refVal->GetHighLow(); // gain value used for reference calibration |
d81e6423 | 670 | // valid amplitude values should be larger than 0 |
0ce5c45d | 671 | if (refVal->GetLEDAmp()>0 && dataCalibReference->GetLEDRefAmp(iStrip)>0) { |
672 | ratiot0 = refVal->GetLEDAmp() / dataCalibReference->GetLEDRefAmp(iStrip); | |
d81e6423 | 673 | } |
674 | else { | |
0ce5c45d | 675 | ratiot0 = kErrorCode; |
d81e6423 | 676 | } |
677 | ||
82d90a2f | 678 | // Calc. R(T) |
d81e6423 | 679 | for (int j = 0; j < nBins; j++) { |
680 | ||
681 | // calculate R(T) also; first try with individual tower: | |
82d90a2f | 682 | // same gain as for reference calibration is the default |
d81e6423 | 683 | if (ampT[iSM][iCol][iRow][iGain].At(j)>0 && ampLEDRefT[iSM][iStrip][refGain].At(j)>0) { |
684 | // looks like valid data with the right gain combination | |
0ce5c45d | 685 | ratioT = ampT[iSM][iCol][iRow][iGain].At(j) / ampLEDRefT[iSM][iStrip][refGain].At(j); |
d81e6423 | 686 | |
687 | // if data appears to be saturated, and we are in high gain, then try with low gain instead | |
82d90a2f | 688 | int newGain = iGain; |
689 | int newRefGain = refGain; | |
690 | if ( ampT[iSM][iCol][iRow][iGain].At(j)>AliEMCALGeoParams::fgkOverflowCut && iGain==1 ) { | |
691 | newGain = 0; | |
692 | } | |
693 | if ( ampLEDRefT[iSM][iStrip][refGain].At(j)>AliEMCALGeoParams::fgkOverflowCut && refGain==1 ) { | |
694 | newRefGain = 0; | |
695 | } | |
696 | ||
697 | if (newGain!=iGain || newRefGain!=refGain) { | |
698 | // compensate for using different gain than in the reference calibration | |
699 | // we may need to have a custom H/L ratio value for each tower | |
700 | // later, but for now just use a common value, as the rest of the code does.. | |
0ce5c45d | 701 | ratioT = ampT[iSM][iCol][iRow][newGain].At(j) / ampLEDRefT[iSM][iStrip][newRefGain].At(j); |
82d90a2f | 702 | |
703 | if (newGain<iGain) { | |
0ce5c45d | 704 | ratioT *= fHighLowGainFactor; |
82d90a2f | 705 | } |
706 | else if (newRefGain<refGain) { | |
0ce5c45d | 707 | ratioT /= fHighLowGainFactor; |
82d90a2f | 708 | } |
d81e6423 | 709 | } |
710 | } | |
711 | else { | |
0ce5c45d | 712 | ratioT = kErrorCode; |
d81e6423 | 713 | } |
714 | ||
715 | // Calc. correction factor | |
0ce5c45d | 716 | if (ratiot0>0 && ratioT>0) { |
717 | correction = ratiot0/ratioT; | |
d81e6423 | 718 | } |
719 | else { | |
0ce5c45d | 720 | correction = kErrorCode; |
d81e6423 | 721 | nRemaining++; |
722 | } | |
723 | ||
724 | // Store the value | |
0ce5c45d | 725 | dataCalibTimeDepCorrection->GetCorrection(iCol,iRow)->AddAt(correction, j); |
d81e6423 | 726 | /* Check that |
727 | fTimeDepCorrection->SetCorrection(i, iCol, iRow, j, correction); | |
728 | also works OK */ | |
729 | } // nBins | |
730 | } | |
731 | } | |
732 | } | |
733 | ||
734 | nRemaining = CalcLEDCorrectionStripBasis(nSM, nBins); | |
735 | return nRemaining; | |
736 | } | |
737 | ||
738 | //________________________________________________________________ | |
739 | Int_t AliEMCALCalibTimeDep::CalcLEDCorrectionStripBasis(Int_t nSM, Int_t nBins) | |
740 | { // use averages for each strip if no good values exist for some single tower | |
741 | ||
742 | // go over fTimeDepCorrection info | |
743 | Int_t nRemaining = 0; // we count the towers for which we could not get valid data | |
744 | ||
d81e6423 | 745 | // for calculating StripAverage info |
746 | int nValidTower = 0; | |
0ce5c45d | 747 | Float_t stripAverage = 0; |
d81e6423 | 748 | Float_t val = 0; |
749 | ||
750 | int iSM = 0; | |
751 | int iCol = 0; | |
752 | int iRow = 0; | |
753 | int iStrip = 0; | |
754 | int firstCol = 0; | |
755 | int lastCol = 0; | |
756 | ||
757 | for (int i = 0; i < nSM; i++) { | |
0ce5c45d | 758 | AliEMCALSuperModuleCalibTimeDepCorrection * dataCalibTimeDepCorrection = fCalibTimeDepCorrection->GetSuperModuleCalibTimeDepCorrectionNum(i); |
759 | iSM = dataCalibTimeDepCorrection->GetSuperModuleNum(); | |
2f17a269 | 760 | |
d81e6423 | 761 | for (int j = 0; j < nBins; j++) { |
762 | ||
763 | nValidTower = 0; | |
0ce5c45d | 764 | stripAverage = 0; |
d81e6423 | 765 | |
766 | for (iStrip = 0; iStrip < AliEMCALGeoParams::fgkEMCALLEDRefs; iStrip++) { | |
767 | firstCol = iStrip*2; | |
768 | if ((iSM%2)==1) { // C side | |
769 | firstCol = (AliEMCALGeoParams::fgkEMCALLEDRefs-1 - iStrip)*2; | |
770 | } | |
771 | lastCol = firstCol+1; | |
772 | ||
773 | for (iCol = firstCol; iCol <= lastCol; iCol++) { | |
774 | for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) { | |
0ce5c45d | 775 | val = dataCalibTimeDepCorrection->GetCorrection(iCol,iRow)->At(j); |
d81e6423 | 776 | if (val>0) { // valid value; error code is negative |
0ce5c45d | 777 | stripAverage += val; |
d81e6423 | 778 | nValidTower++; |
779 | } | |
780 | } | |
781 | } | |
782 | ||
783 | // calc average over strip | |
784 | if (nValidTower>0) { | |
0ce5c45d | 785 | stripAverage /= nValidTower; |
d81e6423 | 786 | for (iCol = firstCol; iCol <= lastCol; iCol++) { |
787 | for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) { | |
0ce5c45d | 788 | val = dataCalibTimeDepCorrection->GetCorrection(iCol,iRow)->At(j); |
d81e6423 | 789 | if (val<0) { // invalid value; error code is negative |
0ce5c45d | 790 | dataCalibTimeDepCorrection->GetCorrection(iCol,iRow)->AddAt(val, j); |
d81e6423 | 791 | } |
792 | } | |
793 | } | |
794 | } | |
795 | else { // could not fill in unvalid entries | |
796 | nRemaining += 2*AliEMCALGeoParams::fgkEMCALRows; | |
797 | } | |
798 | ||
799 | } // iStrip | |
800 | } // j, bins | |
801 | } // iSM | |
802 | ||
803 | return nRemaining; | |
804 | } | |
805 | ||
806 | //________________________________________________________________ | |
716fca62 | 807 | Int_t AliEMCALCalibTimeDep::CalcTemperatureCorrection(Int_t nSM, Int_t nBins, Int_t binSize) |
d81e6423 | 808 | { // OK, so we didn't have valid LED data that allowed us to do the correction only |
809 | // with that info. | |
810 | // So, instead we'll rely on the temperature info and try to do the correction | |
811 | // based on that instead. | |
812 | // For this, we'll need the info from 3 classes (+temperature array), and output the values in a 4th class | |
813 | Int_t nRemaining = 0; | |
814 | ||
d81e6423 | 815 | int iSM = 0; |
816 | int iCol = 0; | |
817 | int iRow = 0; | |
818 | ||
0ce5c45d | 819 | Double_t dTempCoeff[AliEMCALGeoParams::fgkEMCALCols][AliEMCALGeoParams::fgkEMCALRows]; |
820 | memset(dTempCoeff, 0, sizeof(dTempCoeff)); | |
d81e6423 | 821 | Double_t correction = 0; |
716fca62 | 822 | Double_t secondsPerBin = (Double_t) binSize; |
d81e6423 | 823 | |
824 | for (int i = 0; i < nSM; i++) { | |
716fca62 | 825 | AliEMCALSuperModuleCalibTimeDepCorrection * dataCalibTimeDepCorrection = fCalibTimeDepCorrection->GetSuperModuleCalibTimeDepCorrectionNum(i); |
0ce5c45d | 826 | iSM = dataCalibTimeDepCorrection->GetSuperModuleNum(); |
2f17a269 | 827 | |
0ce5c45d | 828 | AliEMCALSuperModuleCalibReference * dataCalibReference = fCalibReference->GetSuperModuleCalibReferenceNum(iSM); |
ed3db319 | 829 | AliEMCALSuperModuleCalibTempCoeff * dataCalibTempCoeff = fCalibTempCoeff->GetSuperModuleCalibTempCoeffNum(iSM); |
716fca62 | 830 | |
ed3db319 | 831 | // first get CalibTempCoeff info |
d81e6423 | 832 | for (iCol = 0; iCol < AliEMCALGeoParams::fgkEMCALCols; iCol++) { |
833 | for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) { | |
ed3db319 | 834 | |
835 | dTempCoeff[iCol][iRow] = dataCalibTempCoeff->GetTC(iCol, iRow); | |
716fca62 | 836 | if (fVerbosity > 1) { |
837 | cout << " iSM " << iSM << " iCol " << iCol << " iRow " << iRow | |
ed3db319 | 838 | << " dTempCoeff " << dTempCoeff[iCol][iRow] << endl; |
716fca62 | 839 | } |
d81e6423 | 840 | } |
841 | } | |
842 | ||
82d90a2f | 843 | // figure out what the reference temperature is, from fCalibReference |
0ce5c45d | 844 | Double_t referenceTemperature = 0; |
d81e6423 | 845 | int nVal = 0; |
846 | for (int iSensor = 0; iSensor<AliEMCALGeoParams::fgkEMCALTempSensors ; iSensor++) { | |
0ce5c45d | 847 | if (dataCalibReference->GetTemperature(iSensor)>0) { // hopefully OK value |
848 | referenceTemperature += dataCalibReference->GetTemperature(iSensor); | |
d81e6423 | 849 | nVal++; |
850 | } | |
851 | } | |
852 | ||
853 | if (nVal>0) { | |
0ce5c45d | 854 | referenceTemperature /= nVal; // valid values exist, we can look into corrections |
d81e6423 | 855 | |
856 | for (int j = 0; j < nBins; j++) { | |
d81e6423 | 857 | // what is the timestamp in the middle of this bin? (0.5 is for middle of bin) |
858 | UInt_t timeStamp = fStartTime + (UInt_t)((j+0.5)*secondsPerBin); | |
859 | // 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) | |
0ce5c45d | 860 | Double_t dSMTemperature = GetTemperatureSM(iSM, timeStamp); |
d81e6423 | 861 | |
ed3db319 | 862 | Double_t temperatureDiff = referenceTemperature - dSMTemperature; // ref - new |
716fca62 | 863 | if (fVerbosity > 0) { |
864 | cout << " referenceTemperature " << referenceTemperature | |
865 | << " dSMTemperature " << dSMTemperature | |
866 | << " temperatureDiff " << temperatureDiff | |
867 | << endl; | |
868 | } | |
ed3db319 | 869 | // if the new temperature is higher than the old/reference one (diff<0), then the gain has gone down |
870 | // if the new temperature is lower than the old/reference one (diff>0), then the gain has gone up | |
871 | // dTempCoeff is a (unsigned) factor describing how many % the gain | |
872 | // changes with a degree change. | |
716fca62 | 873 | // i.e. the product temperatureDiff * dTempCoeff increase when the gain goes up |
874 | // The correction we want to keep is what we should multiply our ADC value with as a function | |
875 | // of time, i.e. the inverse of the gain change.. | |
e1a60af4 | 876 | if ( (TMath::Abs(temperatureDiff)>fTemperatureResolution) |
877 | && (TMath::Abs(temperatureDiff)<fMaxTemperatureDiff) ) { | |
ed3db319 | 878 | // significant enough difference that we need to consider it, and also not unreasonably large |
d81e6423 | 879 | |
880 | // loop over all towers; effect of temperature change will depend on gain for this tower | |
881 | for (iCol = 0; iCol < AliEMCALGeoParams::fgkEMCALCols; iCol++) { | |
882 | for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) { | |
883 | ||
716fca62 | 884 | // the correction should be inverse of modification in gain: (see discussion above) |
885 | // modification in gain: 1.0 + (temperatureDiff * dTempCoeff[iCol][iRow])*0.01; | |
886 | // 1/(1+x) ~= 1 - x for small x, i.e. we arrive at: | |
ed3db319 | 887 | correction = 1.0 - (temperatureDiff * dTempCoeff[iCol][iRow]); |
0ce5c45d | 888 | dataCalibTimeDepCorrection->GetCorrection(iCol,iRow)->AddAt(correction, j); |
716fca62 | 889 | if (fVerbosity > 1) { |
890 | cout << " iSM " << iSM | |
891 | << " iCol " << iCol | |
892 | << " iRow " << iRow | |
893 | << " j " << j | |
894 | << " correction " << correction | |
895 | << endl; | |
896 | } | |
d81e6423 | 897 | } |
898 | } | |
899 | ||
900 | } // if noteworthy temperature change | |
901 | else { // just set correction values to 1.0 | |
902 | correction = 1; | |
903 | for (iCol = 0; iCol < AliEMCALGeoParams::fgkEMCALCols; iCol++) { | |
904 | for (iRow = 0; iRow < AliEMCALGeoParams::fgkEMCALRows; iRow++) { | |
0ce5c45d | 905 | dataCalibTimeDepCorrection->GetCorrection(iCol,iRow)->AddAt(correction, j); |
d81e6423 | 906 | } |
907 | } | |
908 | } // else | |
909 | } // j, Bins | |
910 | ||
911 | } // if reference temperature exist | |
912 | else { // could not do the needed check.. signal that in the return code | |
913 | nRemaining += AliEMCALGeoParams::fgkEMCALCols * AliEMCALGeoParams::fgkEMCALRows * nBins; | |
914 | } | |
915 | } // iSM | |
916 | ||
917 | return nRemaining; | |
918 | } | |
919 |