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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 | /* $Id$ */ | |
17 | ||
18 | //_________________________________________________________________________ | |
19 | // | |
20 | ////////////////////////////////////////////////////////////////////////////// | |
21 | // Class performs digitization of Summable digits from simulated data | |
22 | // | |
23 | // In addition it performs mixing/embedding of summable digits from different events. | |
24 | // | |
25 | // For each event 3 branches are created in TreeD: | |
26 | // "EMCAL" - list of digits | |
27 | // "EMCALTRG" - list of trigger digits | |
28 | // "AliEMCALDigitizer" - AliEMCALDigitizer with all parameters used in digitization | |
29 | // | |
30 | // | |
31 | //////////////////////////////////////////////////////////////////////////////////// | |
32 | // | |
33 | //*-- Author: Sahal Yacoob (LBL) | |
34 | // based on : AliEMCALDigitizer | |
35 | // Modif: | |
36 | // August 2002 Yves Schutz: clone PHOS as closely as possible and intoduction | |
37 | // of new IO (a la PHOS) | |
38 | // November 2003 Aleksei Pavlinov : adopted for Shish-Kebab geometry | |
39 | // July 2011 GCB: Digitizer modified to accomodate embedding. | |
40 | // Time calibration added. Decalibration possibility of energy and time added | |
41 | //_________________________________________________________________________________ | |
42 | ||
43 | // --- ROOT system --- | |
44 | #include <TROOT.h> | |
45 | #include <TTree.h> | |
46 | #include <TSystem.h> | |
47 | #include <TBenchmark.h> | |
48 | #include <TBrowser.h> | |
49 | #include <TObjectTable.h> | |
50 | #include <TRandom.h> | |
51 | #include <TF1.h> | |
52 | #include <cassert> | |
53 | ||
54 | // --- AliRoot header files --- | |
55 | #include "AliLog.h" | |
56 | #include "AliRun.h" | |
57 | #include "AliDigitizationInput.h" | |
58 | #include "AliRunLoader.h" | |
59 | #include "AliCDBManager.h" | |
60 | #include "AliCDBEntry.h" | |
61 | #include "AliEMCALDigit.h" | |
62 | #include "AliEMCAL.h" | |
63 | #include "AliEMCALLoader.h" | |
64 | #include "AliEMCALDigitizer.h" | |
65 | #include "AliEMCALSDigitizer.h" | |
66 | #include "AliEMCALGeometry.h" | |
67 | #include "AliEMCALCalibData.h" | |
68 | #include "AliEMCALSimParam.h" | |
69 | #include "AliEMCALRawDigit.h" | |
70 | #include "AliCaloCalibPedestal.h" | |
71 | ||
72 | namespace | |
73 | { | |
74 | Double_t HeavisideTheta(Double_t x) | |
75 | { | |
76 | Double_t signal = 0.; | |
77 | ||
78 | if (x > 0.) signal = 1.; | |
79 | ||
80 | return signal; | |
81 | } | |
82 | ||
83 | Double_t AnalogFastORFunction(Double_t *x, Double_t *par) | |
84 | { | |
85 | Double_t v0 = par[0]; | |
86 | Double_t t0 = par[1]; | |
87 | Double_t tr = par[2]; | |
88 | ||
89 | Double_t R1 = 1000.; | |
90 | Double_t C1 = 33e-12; | |
91 | Double_t R2 = 1800; | |
92 | Double_t C2 = 22e-12; | |
93 | ||
94 | Double_t t = x[0]; | |
95 | ||
96 | return (((0.8*(-((TMath::Power(C1,2)*C2*TMath::Power(TMath::E(),(-t + t0)/(C1*R1))* | |
97 | TMath::Power(R1,2)*R2)/(C1*R1 - C2*R2)) + | |
98 | C1*C2*R1*R2*(1 - (C2*TMath::Power(TMath::E(),(-t + t0)/(C2*R2))*R2)/(-(C1*R1) + C2*R2)))*v0* | |
99 | HeavisideTheta(t - t0))/tr | |
100 | - (0.8*(C1*C2*R1*R2 - | |
101 | (TMath::Power(C1,2)*C2*TMath::Power(TMath::E(),(-1.*t + t0 + 1.25*tr)/(C1*R1))* | |
102 | TMath::Power(R1,2)*R2)/(C1*R1 - C2*R2) + | |
103 | (C1*TMath::Power(C2,2)*TMath::Power(TMath::E(),(-1.*t + t0 + 1.25*tr)/(C2*R2))* | |
104 | R1*TMath::Power(R2,2))/(C1*R1 - C2*R2))*v0* | |
105 | HeavisideTheta(t - t0 - 1.25*tr))/tr)/(C2*R1)); | |
106 | } | |
107 | } | |
108 | ||
109 | ClassImp(AliEMCALDigitizer) | |
110 | ||
111 | ||
112 | //____________________________________________________________________________ | |
113 | AliEMCALDigitizer::AliEMCALDigitizer() | |
114 | : AliDigitizer("",""), | |
115 | fDefaultInit(kTRUE), | |
116 | fDigitsInRun(0), | |
117 | fInit(0), | |
118 | fInput(0), | |
119 | fInputFileNames(0x0), | |
120 | fEventNames(0x0), | |
121 | fDigitThreshold(0), | |
122 | fMeanPhotonElectron(0), | |
123 | fGainFluctuations(0), | |
124 | fPinNoise(0), | |
125 | fTimeNoise(0), | |
126 | fTimeDelay(0), | |
127 | fTimeResolutionPar0(0), | |
128 | fTimeResolutionPar1(0), | |
129 | fADCchannelEC(0), | |
130 | fADCpedestalEC(0), | |
131 | fADCchannelECDecal(0), | |
132 | fTimeChannel(0), | |
133 | fTimeChannelDecal(0), | |
134 | fNADCEC(0), | |
135 | fEventFolderName(""), | |
136 | fFirstEvent(0), | |
137 | fLastEvent(0), | |
138 | fCalibData(0x0), | |
139 | fSDigitizer(0x0) | |
140 | { | |
141 | // ctor | |
142 | InitParameters() ; | |
143 | fDigInput = 0 ; // We work in the standalone mode | |
144 | } | |
145 | ||
146 | //____________________________________________________________________________ | |
147 | AliEMCALDigitizer::AliEMCALDigitizer(TString alirunFileName, TString eventFolderName) | |
148 | : AliDigitizer("EMCALDigitizer", alirunFileName), | |
149 | fDefaultInit(kFALSE), | |
150 | fDigitsInRun(0), | |
151 | fInit(0), | |
152 | fInput(0), | |
153 | fInputFileNames(0), | |
154 | fEventNames(0), | |
155 | fDigitThreshold(0), | |
156 | fMeanPhotonElectron(0), | |
157 | fGainFluctuations(0), | |
158 | fPinNoise(0), | |
159 | fTimeNoise(0), | |
160 | fTimeDelay(0), | |
161 | fTimeResolutionPar0(0), | |
162 | fTimeResolutionPar1(0), | |
163 | fADCchannelEC(0), | |
164 | fADCpedestalEC(0), | |
165 | fADCchannelECDecal(0), | |
166 | fTimeChannel(0), | |
167 | fTimeChannelDecal(0), | |
168 | fNADCEC(0), | |
169 | fEventFolderName(eventFolderName), | |
170 | fFirstEvent(0), | |
171 | fLastEvent(0), | |
172 | fCalibData(0x0), | |
173 | fSDigitizer(0x0) | |
174 | { | |
175 | // ctor | |
176 | InitParameters() ; | |
177 | Init() ; | |
178 | fDigInput = 0 ; // We work in the standalone mode | |
179 | } | |
180 | ||
181 | //____________________________________________________________________________ | |
182 | AliEMCALDigitizer::AliEMCALDigitizer(const AliEMCALDigitizer & d) | |
183 | : AliDigitizer(d.GetName(),d.GetTitle()), | |
184 | fDefaultInit(d.fDefaultInit), | |
185 | fDigitsInRun(d.fDigitsInRun), | |
186 | fInit(d.fInit), | |
187 | fInput(d.fInput), | |
188 | fInputFileNames(d.fInputFileNames), | |
189 | fEventNames(d.fEventNames), | |
190 | fDigitThreshold(d.fDigitThreshold), | |
191 | fMeanPhotonElectron(d.fMeanPhotonElectron), | |
192 | fGainFluctuations(d.fGainFluctuations), | |
193 | fPinNoise(d.fPinNoise), | |
194 | fTimeNoise(d.fTimeNoise), | |
195 | fTimeDelay(d.fTimeDelay), | |
196 | fTimeResolutionPar0(d.fTimeResolutionPar0), | |
197 | fTimeResolutionPar1(d.fTimeResolutionPar1), | |
198 | fADCchannelEC(d.fADCchannelEC), | |
199 | fADCpedestalEC(d.fADCpedestalEC), | |
200 | fADCchannelECDecal(d.fADCchannelECDecal), | |
201 | fTimeChannel(d.fTimeChannel), fTimeChannelDecal(d.fTimeChannelDecal), | |
202 | fNADCEC(d.fNADCEC), | |
203 | fEventFolderName(d.fEventFolderName), | |
204 | fFirstEvent(d.fFirstEvent), | |
205 | fLastEvent(d.fLastEvent), | |
206 | fCalibData(d.fCalibData), | |
207 | fSDigitizer(d.fSDigitizer ? new AliEMCALSDigitizer(*d.fSDigitizer) : 0) | |
208 | { | |
209 | // copyy ctor | |
210 | } | |
211 | ||
212 | //____________________________________________________________________________ | |
213 | AliEMCALDigitizer::AliEMCALDigitizer(AliDigitizationInput * rd) | |
214 | : AliDigitizer(rd,"EMCALDigitizer"), | |
215 | fDefaultInit(kFALSE), | |
216 | fDigitsInRun(0), | |
217 | fInit(0), | |
218 | fInput(0), | |
219 | fInputFileNames(0), | |
220 | fEventNames(0), | |
221 | fDigitThreshold(0), | |
222 | fMeanPhotonElectron(0), | |
223 | fGainFluctuations(0), | |
224 | fPinNoise(0.), | |
225 | fTimeNoise(0.), | |
226 | fTimeDelay(0.), | |
227 | fTimeResolutionPar0(0.), | |
228 | fTimeResolutionPar1(0.), | |
229 | fADCchannelEC(0), | |
230 | fADCpedestalEC(0), | |
231 | fADCchannelECDecal(0), | |
232 | fTimeChannel(0), | |
233 | fTimeChannelDecal(0), | |
234 | fNADCEC(0), | |
235 | fEventFolderName(0), | |
236 | fFirstEvent(0), | |
237 | fLastEvent(0), | |
238 | fCalibData(0x0), | |
239 | fSDigitizer(0x0) | |
240 | { | |
241 | // ctor Init() is called by RunDigitizer | |
242 | fDigInput = rd ; | |
243 | fEventFolderName = fDigInput->GetInputFolderName(0) ; | |
244 | SetTitle(dynamic_cast<AliStream*>(fDigInput->GetInputStream(0))->GetFileName(0)); | |
245 | InitParameters() ; | |
246 | } | |
247 | ||
248 | //____________________________________________________________________________ | |
249 | AliEMCALDigitizer::~AliEMCALDigitizer() | |
250 | { | |
251 | //dtor | |
252 | delete [] fInputFileNames ; | |
253 | delete [] fEventNames ; | |
254 | if (fSDigitizer) delete fSDigitizer; | |
255 | } | |
256 | ||
257 | //____________________________________________________________________________ | |
258 | void AliEMCALDigitizer::Digitize(Int_t event) | |
259 | { | |
260 | // Makes the digitization of the collected summable digits | |
261 | // for this it first creates the array of all EMCAL modules | |
262 | // filled with noise and after that adds contributions from | |
263 | // SDigits. This design helps to avoid scanning over the | |
264 | // list of digits to add contribution of any new SDigit. | |
265 | // | |
266 | // JLK 26-Jun-2008 | |
267 | // Note that SDigit energy info is stored as an amplitude, so we | |
268 | // must call the Calibrate() method of the SDigitizer to convert it | |
269 | // back to an energy in GeV before adding it to the Digit | |
270 | // | |
271 | ||
272 | AliRunLoader *rl = AliRunLoader::Instance(); | |
273 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL")); | |
274 | ||
275 | if(!emcalLoader) | |
276 | { | |
277 | AliFatal("EMCALLoader is NULL!") ; | |
278 | return; // not needed but in case coverity complains ... | |
279 | } | |
280 | ||
281 | Int_t readEvent = event ; | |
282 | if (fDigInput) // fDigInput is data member from AliDigitizer | |
283 | readEvent = dynamic_cast<AliStream*>(fDigInput->GetInputStream(0))->GetCurrentEventNumber() ; | |
284 | AliDebug(1,Form("Adding event %d from input stream 0 %s %s", | |
285 | readEvent, GetTitle(), fEventFolderName.Data())) ; | |
286 | rl->GetEvent(readEvent); | |
287 | ||
288 | TClonesArray * digits = emcalLoader->Digits() ; | |
289 | digits->Delete() ; //correct way to clear array when memory is | |
290 | //allocated by objects stored in array | |
291 | ||
292 | // Load Geometry | |
293 | if (!rl->GetAliRun()) | |
294 | { | |
295 | AliFatal("Could not get AliRun from runLoader"); | |
296 | return; // not needed but in case coverity complains ... | |
297 | } | |
298 | ||
299 | AliEMCAL * emcal = (AliEMCAL*)rl->GetAliRun()->GetDetector("EMCAL"); | |
300 | AliEMCALGeometry *geom = emcal->GetGeometry(); | |
301 | static int nEMC = geom->GetNCells();//max number of digits possible | |
302 | AliDebug(1,Form("nEMC %i (number cells in EMCAL) | %s \n", nEMC, geom->GetName())); | |
303 | ||
304 | digits->Expand(nEMC) ; | |
305 | ||
306 | // RS create a digitizer on the fly | |
307 | if (!fSDigitizer) fSDigitizer = new AliEMCALSDigitizer(rl->GetFileName().Data()); | |
308 | fSDigitizer->SetEventRange(0, -1) ; | |
309 | ||
310 | //------------------------------------------------------- | |
311 | //take all the inputs to add together and load the SDigits | |
312 | TObjArray * sdigArray = new TObjArray(fInput) ; | |
313 | sdigArray->AddAt(emcalLoader->SDigits(), 0) ; | |
314 | ||
315 | Int_t i ; | |
316 | Int_t embed = kFALSE; | |
317 | for(i = 1 ; i < fInput ; i++) | |
318 | { | |
319 | TString tempo(fEventNames[i]) ; | |
320 | tempo += i ; | |
321 | ||
322 | AliRunLoader * rl2 = AliRunLoader::GetRunLoader(tempo) ; | |
323 | ||
324 | if (!rl2) | |
325 | rl2 = AliRunLoader::Open(fInputFileNames[i], tempo) ; | |
326 | ||
327 | if(!rl2) | |
328 | { | |
329 | AliFatal("Run Loader of second event not available!"); | |
330 | return; // not needed but in case coverity complains ... | |
331 | } | |
332 | ||
333 | if (fDigInput) | |
334 | readEvent = dynamic_cast<AliStream*>(fDigInput->GetInputStream(i))->GetCurrentEventNumber() ; | |
335 | ||
336 | Info("Digitize", "Adding event %d from input stream %d %s %s", readEvent, i, fInputFileNames[i].Data(), tempo.Data()) ; | |
337 | ||
338 | rl2->LoadSDigits(); | |
339 | // rl2->LoadDigits(); | |
340 | rl2->GetEvent(readEvent); | |
341 | ||
342 | if(!rl2->GetDetectorLoader("EMCAL")) | |
343 | { | |
344 | AliFatal("Loader of second input not found"); | |
345 | return; // not needed but in case coverity complains ... | |
346 | } | |
347 | ||
348 | AliEMCALLoader *emcalLoader2 = dynamic_cast<AliEMCALLoader*>(rl2->GetDetectorLoader("EMCAL")); | |
349 | ||
350 | if(!emcalLoader2) | |
351 | { | |
352 | AliFatal("EMCAL Loader of second event not available!"); | |
353 | return; // not needed but in case coverity complains ... | |
354 | } | |
355 | ||
356 | //Merge 2 simulated sdigits | |
357 | if(!emcalLoader2->SDigits()) continue; | |
358 | ||
359 | TClonesArray* sdigits2 = emcalLoader2->SDigits(); | |
360 | sdigArray->AddAt(sdigits2, i) ; | |
361 | ||
362 | // Check if first sdigit is of embedded type, if so, handle the sdigits differently: | |
363 | // do not smear energy of embedded, do not add noise to any sdigits | |
364 | if( sdigits2->GetEntriesFast() <= 0 ) continue; | |
365 | ||
366 | //printf("Merged digit type: %d\n",dynamic_cast<AliEMCALDigit*> (sdigits2->At(0))->GetType()); | |
367 | AliEMCALDigit * digit2 = dynamic_cast<AliEMCALDigit*> (sdigits2->At(0)); | |
368 | if( digit2 && digit2->GetType()==AliEMCALDigit::kEmbedded ) embed = kTRUE; | |
369 | ||
370 | }// input loop | |
371 | ||
372 | //-------------------------------- | |
373 | //Find the first tower with signal | |
374 | Int_t nextSig = nEMC + 1 ; | |
375 | TClonesArray * sdigits ; | |
376 | for(i = 0 ; i < fInput ; i++) | |
377 | { | |
378 | if(i > 0 && embed) continue; | |
379 | ||
380 | sdigits = dynamic_cast<TClonesArray *>(sdigArray->At(i)) ; | |
381 | if(!sdigits) | |
382 | { | |
383 | AliDebug(1,"Null sdigit pointer"); | |
384 | continue; | |
385 | } | |
386 | ||
387 | if (sdigits->GetEntriesFast() <= 0 ) | |
388 | { | |
389 | AliDebug(1, "No sdigits entries"); | |
390 | continue; | |
391 | } | |
392 | ||
393 | AliEMCALDigit *sd = dynamic_cast<AliEMCALDigit *>(sdigits->At(0)); | |
394 | if(!sd) | |
395 | { | |
396 | AliDebug(1, "NULL sdigit pointer"); | |
397 | continue; | |
398 | } | |
399 | ||
400 | Int_t curNext = sd->GetId() ; | |
401 | if(curNext < nextSig) | |
402 | nextSig = curNext ; | |
403 | AliDebug(1,Form("input %i : #sdigits %i \n",i, sdigits->GetEntriesFast())); | |
404 | ||
405 | }// input loop | |
406 | ||
407 | AliDebug(1,Form("FIRST tower with signal %i \n", nextSig)); | |
408 | ||
409 | TArrayI index(fInput) ; | |
410 | index.Reset() ; //Set all indexes to zero | |
411 | ||
412 | AliEMCALDigit * digit ; | |
413 | AliEMCALDigit * curSDigit ; | |
414 | ||
415 | //--------------------------------------------- | |
416 | //Put Noise contribution, smear time and energy | |
417 | Float_t timeResolution = 0; | |
418 | Int_t absID = -1 ; | |
419 | for(absID = 0; absID < nEMC; absID++) | |
420 | { // Nov 30, 2006 by PAI; was from 1 to nEMC | |
421 | ||
422 | if (IsDead(absID)) continue; // Don't instantiate dead digits | |
423 | ||
424 | Float_t energy = 0 ; | |
425 | ||
426 | // amplitude set to zero, noise will be added later | |
427 | Float_t noiseTime = 0.; | |
428 | if(!embed) noiseTime = TimeOfNoise(); //No need for embedded events? | |
429 | new((*digits)[absID]) AliEMCALDigit( -1, -1, absID, 0., noiseTime,kFALSE); // absID-1->absID | |
430 | //look if we have to add signal? | |
431 | digit = dynamic_cast<AliEMCALDigit *>(digits->At(absID)); // absID-1->absID | |
432 | ||
433 | if (!digit) | |
434 | { | |
435 | AliDebug(1,"Digit pointer is null"); | |
436 | continue; | |
437 | } | |
438 | ||
439 | if(absID==nextSig) | |
440 | { | |
441 | // Calculate time as time of the largest digit | |
442 | Float_t time = digit->GetTime() ; | |
443 | Float_t aTime= digit->GetAmplitude() ; | |
444 | ||
445 | // loop over input | |
446 | Int_t nInputs = fInput; | |
447 | if(embed) nInputs = 1; // In case of embedding, merge later real digits, do not smear energy and time of data | |
448 | for(i = 0; i< nInputs ; i++) | |
449 | { | |
450 | //loop over (possible) merge sources | |
451 | TClonesArray* sdtclarr = dynamic_cast<TClonesArray *>(sdigArray->At(i)); | |
452 | if(sdtclarr) | |
453 | { | |
454 | Int_t sDigitEntries = sdtclarr->GetEntriesFast(); | |
455 | ||
456 | if(sDigitEntries > index[i] ) curSDigit = dynamic_cast<AliEMCALDigit*>(sdtclarr->At(index[i])) ; | |
457 | else curSDigit = 0 ; | |
458 | ||
459 | //May be several digits will contribute from the same input | |
460 | while(curSDigit && (curSDigit->GetId() == absID)) | |
461 | { | |
462 | //Shift primary to separate primaries belonging different inputs | |
463 | Int_t primaryoffset = i ; | |
464 | if(fDigInput) primaryoffset = fDigInput->GetMask(i) ; | |
465 | curSDigit->ShiftPrimary(primaryoffset) ; | |
466 | ||
467 | if(curSDigit->GetAmplitude()>aTime) | |
468 | { | |
469 | aTime = curSDigit->GetAmplitude(); | |
470 | time = curSDigit->GetTime(); | |
471 | } | |
472 | ||
473 | *digit = *digit + *curSDigit ; //adds amplitudes of each digit | |
474 | ||
475 | index[i]++ ; | |
476 | ||
477 | if( sDigitEntries > index[i] ) curSDigit = dynamic_cast<AliEMCALDigit*>(sdtclarr->At(index[i])) ; | |
478 | else curSDigit = 0 ; | |
479 | }// while | |
480 | }// source exists | |
481 | }// loop over merging sources | |
482 | ||
483 | //Here we convert the summed amplitude to an energy in GeV only for simulation or mixing of simulations | |
484 | energy = fSDigitizer->Calibrate(digit->GetAmplitude()) ; // GeV | |
485 | ||
486 | // add fluctuations for photo-electron creation | |
487 | // corrected fluctuations after comparison with beam test, Paraskevi Ganoti (06/11/2011) | |
488 | Float_t fluct = static_cast<Float_t>((energy*fMeanPhotonElectron)/fGainFluctuations); | |
489 | energy *= static_cast<Float_t>(gRandom->Poisson(fluct)) / fluct ; | |
490 | ||
491 | //calculate and set time | |
492 | digit->SetTime(time) ; | |
493 | ||
494 | //Find next signal module | |
495 | nextSig = nEMC + 1 ; | |
496 | for(i = 0 ; i < nInputs ; i++) | |
497 | { | |
498 | sdigits = dynamic_cast<TClonesArray *>(sdigArray->At(i)) ; | |
499 | ||
500 | if(sdigits) | |
501 | { | |
502 | Int_t curNext = nextSig ; | |
503 | if(sdigits->GetEntriesFast() > index[i]) | |
504 | { | |
505 | AliEMCALDigit * tmpdigit = dynamic_cast<AliEMCALDigit *>(sdigits->At(index[i])); | |
506 | if ( tmpdigit ) curNext = tmpdigit->GetId() ; | |
507 | } | |
508 | ||
509 | if(curNext < nextSig) nextSig = curNext ; | |
510 | }// sdigits exist | |
511 | } // input loop | |
512 | ||
513 | }//absID==nextSig | |
514 | ||
515 | // add the noise now, no need for embedded events with real data | |
516 | if(!embed) | |
517 | energy += gRandom->Gaus(0., fPinNoise) ; | |
518 | ||
519 | // JLK 26-June-2008 | |
520 | //Now digitize the energy according to the fSDigitizer method, | |
521 | //which merely converts the energy to an integer. Later we will | |
522 | //check that the stored value matches our allowed dynamic ranges | |
523 | digit->SetAmplitude(fSDigitizer->Digitize(energy)) ; | |
524 | ||
525 | //Set time resolution with final energy | |
526 | timeResolution = GetTimeResolution(energy); | |
527 | digit->SetTime(gRandom->Gaus(digit->GetTime(),timeResolution) ) ; | |
528 | AliDebug(10,Form(" absID %5i energy %f nextSig %5i\n", | |
529 | absID, energy, nextSig)); | |
530 | //Add delay to time | |
531 | digit->SetTime(digit->GetTime()+fTimeDelay) ; | |
532 | ||
533 | } // for(absID = 0; absID < nEMC; absID++) | |
534 | ||
535 | //--------------------------------------------------------- | |
536 | //Embed simulated amplitude (and time?) to real data digits | |
537 | if ( embed ) | |
538 | { | |
539 | for(Int_t input = 1; input<fInput; input++) | |
540 | { | |
541 | TClonesArray *realDigits = dynamic_cast<TClonesArray*> (sdigArray->At(input)); | |
542 | if(!realDigits) | |
543 | { | |
544 | AliDebug(1,"No sdigits to merge\n"); | |
545 | continue; | |
546 | } | |
547 | ||
548 | for(Int_t i2 = 0 ; i2 < realDigits->GetEntriesFast() ; i2++) | |
549 | { | |
550 | AliEMCALDigit * digit2 = dynamic_cast<AliEMCALDigit*>( realDigits->At(i2) ) ; | |
551 | if ( !digit2 ) continue; | |
552 | ||
553 | digit = dynamic_cast<AliEMCALDigit*>( digits->At(digit2->GetId()) ) ; | |
554 | if ( !digit ) continue; | |
555 | ||
556 | // Put the embedded cell energy in same units as simulated sdigits -> transform to energy units | |
557 | // and multiply to get a big int. | |
558 | Float_t time2 = digit2->GetTime(); | |
559 | Float_t e2 = digit2->GetAmplitude(); | |
560 | CalibrateADCTime(e2,time2,digit2->GetId()); | |
561 | Float_t amp2 = fSDigitizer->Digitize(e2); | |
562 | ||
563 | Float_t e0 = digit ->GetAmplitude(); | |
564 | if(e0>0.01) | |
565 | AliDebug(1,Form("digit 1: Abs ID %d, amp %f, type %d, time %e; digit2: Abs ID %d, amp %f, type %d, time %e\n", | |
566 | digit ->GetId(),digit ->GetAmplitude(), digit ->GetType(), digit->GetTime(), | |
567 | digit2->GetId(),amp2, digit2->GetType(), time2 )); | |
568 | ||
569 | // Sum amplitudes, change digit amplitude | |
570 | digit->SetAmplitude( digit->GetAmplitude() + amp2); | |
571 | ||
572 | // Rough assumption, assign time of the largest of the 2 digits, | |
573 | // data or signal to the final digit. | |
574 | if(amp2 > digit->GetAmplitude()) digit->SetTime(time2); | |
575 | ||
576 | //Mark the new digit as embedded | |
577 | digit->SetType(AliEMCALDigit::kEmbedded); | |
578 | ||
579 | if(digit2->GetAmplitude()>0.01 && e0> 0.01 ) | |
580 | AliDebug(1,Form("Embedded digit: Abs ID %d, amp %f, type %d\n", | |
581 | digit->GetId(), digit->GetAmplitude(), digit->GetType())); | |
582 | }//loop digit 2 | |
583 | }//input loop | |
584 | }//embed | |
585 | ||
586 | //JLK is it better to call Clear() here? | |
587 | delete sdigArray ; //We should not delete its contents | |
588 | ||
589 | //------------------------------ | |
590 | //remove digits below thresholds | |
591 | // until 10-02-2010 remove digits with energy smaller than fDigitThreshold 3*fPinNoise | |
592 | // now, remove digits with Digitized ADC smaller than fDigitThreshold = 3, | |
593 | // before merge in the same loop real data digits if available | |
594 | Float_t energy = 0; | |
595 | Float_t time = 0; | |
596 | for(i = 0 ; i < nEMC ; i++) | |
597 | { | |
598 | digit = dynamic_cast<AliEMCALDigit*>( digits->At(i) ) ; | |
599 | if ( !digit ) continue; | |
600 | ||
601 | //Then get the energy in GeV units. | |
602 | energy = fSDigitizer->Calibrate(digit->GetAmplitude()) ; | |
603 | ||
604 | //Then digitize using the calibration constants of the ocdb | |
605 | Float_t ampADC = energy; | |
606 | DigitizeEnergyTime(ampADC, time, digit->GetId()) ; | |
607 | ||
608 | if(ampADC < fDigitThreshold) | |
609 | digits->RemoveAt(i) ; | |
610 | ||
611 | } // digit loop | |
612 | ||
613 | digits->Compress() ; | |
614 | ||
615 | Int_t ndigits = digits->GetEntriesFast() ; | |
616 | ||
617 | //--------------------------------------------------------------- | |
618 | //JLK 26-June-2008 | |
619 | //After we have done the summing and digitizing to create the | |
620 | //digits, now we want to calibrate the resulting amplitude to match | |
621 | //the dynamic range of our real data. | |
622 | for (i = 0 ; i < ndigits ; i++) | |
623 | { | |
624 | digit = dynamic_cast<AliEMCALDigit *>( digits->At(i) ) ; | |
625 | if( !digit ) continue ; | |
626 | ||
627 | digit->SetIndexInList(i) ; | |
628 | ||
629 | time = digit->GetTime(); | |
630 | digit->SetTime(time); | |
631 | ||
632 | energy = fSDigitizer->Calibrate(digit->GetAmplitude()) ; | |
633 | ||
634 | Float_t ampADC = energy; | |
635 | DigitizeEnergyTime(ampADC, time, digit->GetId()); | |
636 | ||
637 | digit->SetAmplitude(ampADC) ; | |
638 | // printf("digit amplitude set at end: i %d, amp %f\n",i,digit->GetAmplitude()); | |
639 | }//Digit loop | |
640 | ||
641 | } | |
642 | ||
643 | //_____________________________________________________________________ | |
644 | void AliEMCALDigitizer::DigitizeEnergyTime(Float_t & energy, Float_t & time, const Int_t absId) | |
645 | { | |
646 | // JLK 26-June-2008 | |
647 | // Returns digitized value of the energy in a cell absId | |
648 | // using the calibration constants stored in the OCDB | |
649 | // or default values if no CalibData object is found. | |
650 | // This effectively converts everything to match the dynamic range | |
651 | // of the real data we will collect | |
652 | // | |
653 | // Load Geometry | |
654 | const AliEMCALGeometry * geom = AliEMCALGeometry::GetInstance(); | |
655 | ||
656 | if (geom==0) | |
657 | { | |
658 | AliFatal("Did not get geometry from EMCALLoader"); | |
659 | return; | |
660 | } | |
661 | ||
662 | Int_t iSupMod = -1; | |
663 | Int_t nModule = -1; | |
664 | Int_t nIphi = -1; | |
665 | Int_t nIeta = -1; | |
666 | Int_t iphi = -1; | |
667 | Int_t ieta = -1; | |
668 | Bool_t bCell = geom->GetCellIndex(absId, iSupMod, nModule, nIphi, nIeta) ; | |
669 | if(!bCell) | |
670 | Error("DigitizeEnergyTime","Wrong cell id number : absId %i ", absId) ; | |
671 | geom->GetCellPhiEtaIndexInSModule(iSupMod,nModule,nIphi, nIeta,iphi,ieta); | |
672 | ||
673 | if(fCalibData) | |
674 | { | |
675 | fADCpedestalEC = fCalibData->GetADCpedestal (iSupMod,ieta,iphi); | |
676 | fADCchannelEC = fCalibData->GetADCchannel (iSupMod,ieta,iphi); | |
677 | fADCchannelECDecal = fCalibData->GetADCchannelDecal (iSupMod,ieta,iphi); | |
678 | fTimeChannel = fCalibData->GetTimeChannel (iSupMod,ieta,iphi,0); // Assign bunch crossing number equal to 0 (has simulation different bunch crossings?) | |
679 | fTimeChannelDecal = fCalibData->GetTimeChannelDecal(iSupMod,ieta,iphi); | |
680 | } | |
681 | ||
682 | //Apply calibration to get ADC counts and partial decalibration as especified in OCDB | |
683 | energy = (energy + fADCpedestalEC)/fADCchannelEC/fADCchannelECDecal ; | |
684 | time += fTimeChannel-fTimeChannelDecal; | |
685 | ||
686 | if ( energy > fNADCEC ) energy = fNADCEC ; | |
687 | } | |
688 | ||
689 | //_____________________________________________________________________ | |
690 | void AliEMCALDigitizer::DecalibrateTrigger(AliEMCALDigit *digit) | |
691 | { | |
692 | // Decalibrate, used in Trigger digits | |
693 | ||
694 | if ( !fCalibData ) return ; | |
695 | ||
696 | // Load Geometry | |
697 | const AliEMCALGeometry *geom = AliEMCALGeometry::GetInstance(); | |
698 | ||
699 | if (!geom) | |
700 | { | |
701 | AliFatal("Did not get geometry from EMCALLoader"); | |
702 | return; | |
703 | } | |
704 | ||
705 | // Recover the digit location in row-column-SM | |
706 | Int_t absId = digit->GetId(); | |
707 | Int_t iSupMod = -1; | |
708 | Int_t nModule = -1; | |
709 | Int_t nIphi = -1; | |
710 | Int_t nIeta = -1; | |
711 | Int_t iphi = -1; | |
712 | Int_t ieta = -1; | |
713 | ||
714 | Bool_t bCell = geom->GetCellIndex(absId, iSupMod, nModule, nIphi, nIeta) ; | |
715 | if (!bCell) Error("Decalibrate","Wrong cell id number : absId %i ", absId) ; | |
716 | ||
717 | geom->GetCellPhiEtaIndexInSModule(iSupMod,nModule,nIphi, nIeta,iphi,ieta); | |
718 | ||
719 | // Now decalibrate | |
720 | Float_t adcChannel = fCalibData->GetADCchannel (iSupMod,ieta,iphi); | |
721 | Float_t adcChannelOnline = fCalibData->GetADCchannelOnline(iSupMod,ieta,iphi); | |
722 | //printf("calib param for (SM%d,col%d,row%d): %1.4f - online param: %1.4f \n",iSupMod,ieta,iphi,adcChannel,adcChannelOnline); | |
723 | Float_t factor = 1./(adcChannel/adcChannelOnline); | |
724 | ||
725 | *digit = *digit * factor; | |
726 | ||
727 | } | |
728 | ||
729 | //_____________________________________________________________________ | |
730 | void AliEMCALDigitizer::CalibrateADCTime(Float_t & adc, Float_t & time, const Int_t absId) | |
731 | { | |
732 | // Returns the energy in a cell absId with a given adc value | |
733 | // using the calibration constants stored in the OCDB. Time also corrected from parameter in OCDB | |
734 | // Used in case of embedding, transform ADC counts from real event into energy | |
735 | // so that we can add the energy of the simulated sdigits which are in energy | |
736 | // units. | |
737 | // Same as in AliEMCALClusterizer::Calibrate() but here we do not reject channels being marked as hot | |
738 | // or with time out of window | |
739 | ||
740 | // Load Geometry | |
741 | const AliEMCALGeometry * geom = AliEMCALGeometry::GetInstance(); | |
742 | ||
743 | if (!geom) | |
744 | { | |
745 | AliFatal("Did not get geometry from EMCALLoader"); | |
746 | return; | |
747 | } | |
748 | ||
749 | Int_t iSupMod = -1; | |
750 | Int_t nModule = -1; | |
751 | Int_t nIphi = -1; | |
752 | Int_t nIeta = -1; | |
753 | Int_t iphi = -1; | |
754 | Int_t ieta = -1; | |
755 | Bool_t bCell = geom->GetCellIndex(absId, iSupMod, nModule, nIphi, nIeta) ; | |
756 | if(!bCell) Error("CalibrateADCTime","Wrong cell id number : absId %i ", absId) ; | |
757 | geom->GetCellPhiEtaIndexInSModule(iSupMod,nModule,nIphi, nIeta,iphi,ieta); | |
758 | ||
759 | if(fCalibData) | |
760 | { | |
761 | fADCpedestalEC = fCalibData->GetADCpedestal(iSupMod,ieta,iphi); | |
762 | fADCchannelEC = fCalibData->GetADCchannel (iSupMod,ieta,iphi); | |
763 | fTimeChannel = fCalibData->GetTimeChannel(iSupMod,ieta,iphi,0);// Assign bunch crossing number equal to 0 (has simulation different bunch crossings?) | |
764 | } | |
765 | ||
766 | adc = adc * fADCchannelEC - fADCpedestalEC; | |
767 | time -= fTimeChannel; | |
768 | ||
769 | } | |
770 | ||
771 | ||
772 | //____________________________________________________________________________ | |
773 | void AliEMCALDigitizer::Digitize(Option_t *option) | |
774 | { | |
775 | // Steering method to process digitization for events | |
776 | // in the range from fFirstEvent to fLastEvent. | |
777 | // This range is optionally set by SetEventRange(). | |
778 | // if fLastEvent=-1, then process events until the end. | |
779 | // by default fLastEvent = fFirstEvent (process only one event) | |
780 | ||
781 | if (!fInit) | |
782 | { // to prevent overwrite existing file | |
783 | Error( "Digitize", "Give a version name different from %s", fEventFolderName.Data() ) ; | |
784 | return ; | |
785 | } | |
786 | ||
787 | if (strstr(option,"print")) | |
788 | { | |
789 | Print(); | |
790 | return ; | |
791 | } | |
792 | ||
793 | if(strstr(option,"tim")) | |
794 | gBenchmark->Start("EMCALDigitizer"); | |
795 | ||
796 | AliRunLoader *rl = AliRunLoader::Instance(); | |
797 | ||
798 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL")); | |
799 | if(!emcalLoader) | |
800 | { | |
801 | AliFatal("Did not get the Loader"); | |
802 | return; // coverity | |
803 | } | |
804 | ||
805 | if (fLastEvent == -1) | |
806 | fLastEvent = rl->GetNumberOfEvents() - 1 ; | |
807 | else if (fDigInput) | |
808 | fLastEvent = fFirstEvent ; // what is this ?? | |
809 | ||
810 | Int_t nEvents = fLastEvent - fFirstEvent + 1; | |
811 | Int_t ievent = -1; | |
812 | ||
813 | AliEMCAL * emcal = dynamic_cast<AliEMCAL*>(rl->GetAliRun()->GetDetector("EMCAL")); | |
814 | if(!emcal) | |
815 | { | |
816 | AliFatal("Did not get the AliEMCAL pointer"); | |
817 | return; // coverity | |
818 | } | |
819 | ||
820 | AliEMCALGeometry *geom = emcal->GetGeometry(); | |
821 | if(!geom) | |
822 | { | |
823 | AliFatal("Geometry pointer null"); | |
824 | return; // fix for coverity | |
825 | } | |
826 | ||
827 | const Int_t nTRU = geom->GetNTotalTRU(); | |
828 | TClonesArray* digitsTMP = new TClonesArray("AliEMCALDigit", nTRU*96); | |
829 | TClonesArray* digitsTRG = new TClonesArray("AliEMCALRawDigit", nTRU*96); | |
830 | ||
831 | rl->LoadSDigits("EMCAL"); | |
832 | for (ievent = fFirstEvent; ievent <= fLastEvent; ievent++) | |
833 | { | |
834 | rl->GetEvent(ievent); | |
835 | ||
836 | Digitize(ievent) ; //Add prepared SDigits to digits and add the noise | |
837 | ||
838 | WriteDigits() ; | |
839 | ||
840 | //Trigger Digits | |
841 | //------------------------------------- | |
842 | ||
843 | Digits2FastOR(digitsTMP, digitsTRG); | |
844 | ||
845 | WriteDigits(digitsTRG); | |
846 | ||
847 | (emcalLoader->TreeD())->Fill(); | |
848 | ||
849 | emcalLoader->WriteDigits( "OVERWRITE"); | |
850 | ||
851 | Unload(); | |
852 | ||
853 | digitsTRG ->Delete(); | |
854 | digitsTMP ->Delete(); | |
855 | ||
856 | //------------------------------------- | |
857 | ||
858 | if(strstr(option,"deb")) | |
859 | PrintDigits(option); | |
860 | if(strstr(option,"table")) gObjectTable->Print(); | |
861 | ||
862 | //increment the total number of Digits per run | |
863 | fDigitsInRun += emcalLoader->Digits()->GetEntriesFast() ; | |
864 | }//loop | |
865 | ||
866 | if(strstr(option,"tim")) | |
867 | { | |
868 | gBenchmark->Stop("EMCALDigitizer"); | |
869 | Float_t cputime = gBenchmark->GetCpuTime("EMCALDigitizer"); | |
870 | Float_t avcputime = cputime; | |
871 | if(nEvents==0) avcputime = 0 ; | |
872 | AliInfo(Form("Digitize: took %f seconds for Digitizing %f seconds per event", cputime, avcputime)) ; | |
873 | } | |
874 | } | |
875 | ||
876 | //__________________________________________________________________ | |
877 | Float_t AliEMCALDigitizer::GetTimeResolution(Float_t energy) const | |
878 | { | |
879 | // Assign a smeared time to the digit, from observed distribution in LED system (?). | |
880 | // From F. Blanco | |
881 | Float_t res = -1; | |
882 | if (energy > 0) | |
883 | { | |
884 | res = TMath::Sqrt(fTimeResolutionPar0 + | |
885 | fTimeResolutionPar1/(energy*energy) ); | |
886 | } | |
887 | // parametrization above is for ns. Convert to seconds: | |
888 | return res*1e-9; | |
889 | } | |
890 | ||
891 | //____________________________________________________________________________ | |
892 | void AliEMCALDigitizer::Digits2FastOR(TClonesArray* digitsTMP, TClonesArray* digitsTRG) | |
893 | { | |
894 | // FEE digits afterburner to produce TRG digits | |
895 | // we are only interested in the FEE digit deposited energy | |
896 | // to be converted later into a voltage value | |
897 | ||
898 | // push the FEE digit to its associated FastOR (numbered from 0:95) | |
899 | // TRU is in charge of summing module digits | |
900 | ||
901 | AliRunLoader *runLoader = AliRunLoader::Instance(); | |
902 | ||
903 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(runLoader->GetDetectorLoader("EMCAL")); | |
904 | if (!emcalLoader) AliFatal("Did not get the Loader"); | |
905 | ||
906 | const AliEMCALGeometry* geom = AliEMCALGeometry::GetInstance(); | |
907 | if(!geom) | |
908 | { | |
909 | AliFatal("Geometry pointer null"); | |
910 | return; // fix for coverity | |
911 | } | |
912 | ||
913 | // build FOR from simulated digits | |
914 | // and xfer to the corresponding TRU input (mapping) | |
915 | ||
916 | TClonesArray* sdigits = emcalLoader->SDigits(); | |
917 | ||
918 | TClonesArray *digits = (TClonesArray*)sdigits->Clone(); | |
919 | ||
920 | AliDebug(999,Form("=== %d SDigits to trigger digits ===",digits->GetEntriesFast())); | |
921 | ||
922 | TIter NextDigit(digits); | |
923 | while (AliEMCALDigit* digit = (AliEMCALDigit*)NextDigit()) | |
924 | { | |
925 | if (IsDead(digit)) continue; | |
926 | ||
927 | DecalibrateTrigger(digit); | |
928 | ||
929 | Int_t id = digit->GetId(); | |
930 | ||
931 | Int_t trgid; | |
932 | if (geom->GetFastORIndexFromCellIndex(id , trgid)) | |
933 | { | |
934 | AliDebug(1,Form("trigger digit id: %d from cell id: %d\n",trgid,id)); | |
935 | ||
936 | AliEMCALDigit* d = static_cast<AliEMCALDigit*>(digitsTMP->At(trgid)); | |
937 | ||
938 | if (!d) | |
939 | { | |
940 | new((*digitsTMP)[trgid]) AliEMCALDigit(*digit); | |
941 | d = (AliEMCALDigit*)digitsTMP->At(trgid); | |
942 | d->SetId(trgid); | |
943 | } | |
944 | else | |
945 | { | |
946 | *d = *d + *digit; | |
947 | } | |
948 | } | |
949 | } | |
950 | ||
951 | if (AliDebugLevel()) printf("Number of TRG digits: %d\n",digitsTMP->GetEntriesFast()); | |
952 | ||
953 | Int_t nSamples = geom->GetNTotalTRU(); | |
954 | Int_t *timeSamples = new Int_t[nSamples]; | |
955 | ||
956 | NextDigit = TIter(digitsTMP); | |
957 | while (AliEMCALDigit* digit = (AliEMCALDigit*)NextDigit()) | |
958 | { | |
959 | if (digit) | |
960 | { | |
961 | Int_t id = digit->GetId(); | |
962 | Float_t time = 50.e-9; | |
963 | ||
964 | Double_t depositedEnergy = 0.; | |
965 | for (Int_t j = 1; j <= digit->GetNprimary(); j++) depositedEnergy += digit->GetDEPrimary(j); | |
966 | ||
967 | if (AliDebugLevel()) printf("Deposited Energy: %f\n", depositedEnergy); | |
968 | ||
969 | // FIXME: Check digit time! | |
970 | if (depositedEnergy) { | |
971 | depositedEnergy += gRandom->Gaus(0., .08); | |
972 | DigitalFastOR(time, depositedEnergy, timeSamples, nSamples); | |
973 | ||
974 | for (Int_t j=0;j<nSamples;j++) { | |
975 | if (AliDebugLevel()) printf("timeSamples[%d]: %d\n",j,timeSamples[j]); | |
976 | timeSamples[j] = ((j << 16) | (timeSamples[j] & 0xFFFF)); | |
977 | } | |
978 | ||
979 | new((*digitsTRG)[digitsTRG->GetEntriesFast()]) AliEMCALRawDigit(id, timeSamples, nSamples); | |
980 | ||
981 | if (AliDebugLevel()) ((AliEMCALRawDigit*)digitsTRG->At(digitsTRG->GetEntriesFast() - 1))->Print(""); | |
982 | } | |
983 | } | |
984 | } | |
985 | ||
986 | delete [] timeSamples; | |
987 | ||
988 | if (digits && digits->GetEntriesFast()) digits->Delete(); | |
989 | } | |
990 | ||
991 | //____________________________________________________________________________ | |
992 | void AliEMCALDigitizer::DigitalFastOR( Double_t time, Double_t dE, Int_t timeSamples[], Int_t nSamples ) | |
993 | { | |
994 | // parameters: | |
995 | // id: 0..95 | |
996 | const Int_t reso = 12; // 11-bit resolution ADC | |
997 | const Double_t vFSR = 2.; // Full scale input voltage range 2V (p-p) | |
998 | //const Double_t dNe = 125; // signal of the APD per MeV of energy deposit in a tower: 125 photo-e-/MeV @ M=30 | |
999 | const Double_t dNe = 125/1.3; // F-ALTRO max V. FEE: factor 4 | |
1000 | const Double_t vA = .136e-6; // CSP output range: 0.136uV/e- | |
1001 | const Double_t rise = 50e-9; // rise time (10-90%) of the FastOR signal before shaping | |
1002 | ||
1003 | const Double_t kTimeBinWidth = 25E-9; // sampling frequency (40MHz) | |
1004 | ||
1005 | Double_t vV = 1000. * dE * dNe * vA; // GeV 2 MeV | |
1006 | ||
1007 | TF1 signalF("signal", AnalogFastORFunction, 0, nSamples * kTimeBinWidth, 3); | |
1008 | signalF.SetParameter( 0, vV ); | |
1009 | signalF.SetParameter( 1, time ); // FIXME: when does the signal arrive? Might account for cable lengths | |
1010 | signalF.SetParameter( 2, rise ); | |
1011 | ||
1012 | for (Int_t iTime=0; iTime<nSamples; iTime++) | |
1013 | { | |
1014 | // FIXME: add noise (probably not simply Gaussian) according to DA measurements | |
1015 | // probably plan an access to OCDB | |
1016 | Double_t sig = signalF.Eval(iTime * kTimeBinWidth); | |
1017 | if (TMath::Abs(sig) > vFSR/2.) { | |
1018 | AliError("Signal overflow!"); | |
1019 | timeSamples[iTime] = (1 << reso) - 1; | |
1020 | } else { | |
1021 | AliDebug(999,Form("iTime: %d sig: %f\n",iTime,sig)); | |
1022 | timeSamples[iTime] = ((1 << reso) / vFSR) * sig + 0.5; | |
1023 | } | |
1024 | } | |
1025 | } | |
1026 | ||
1027 | //____________________________________________________________________________ | |
1028 | Bool_t AliEMCALDigitizer::Init() | |
1029 | { | |
1030 | // Makes all memory allocations | |
1031 | fInit = kTRUE ; | |
1032 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL")); | |
1033 | ||
1034 | if ( emcalLoader == 0 ) { | |
1035 | Fatal("Init", "Could not obtain the AliEMCALLoader"); | |
1036 | return kFALSE; | |
1037 | } | |
1038 | ||
1039 | fFirstEvent = 0 ; | |
1040 | fLastEvent = fFirstEvent ; | |
1041 | ||
1042 | if(fDigInput) | |
1043 | fInput = fDigInput->GetNinputs() ; | |
1044 | else | |
1045 | fInput = 1 ; | |
1046 | ||
1047 | fInputFileNames = new TString[fInput] ; | |
1048 | fEventNames = new TString[fInput] ; | |
1049 | fInputFileNames[0] = GetTitle() ; | |
1050 | fEventNames[0] = fEventFolderName.Data() ; | |
1051 | Int_t index ; | |
1052 | for (index = 1 ; index < fInput ; index++) { | |
1053 | fInputFileNames[index] = dynamic_cast<AliStream*>(fDigInput->GetInputStream(index))->GetFileName(0); | |
1054 | TString tempo = fDigInput->GetInputFolderName(index) ; | |
1055 | fEventNames[index] = tempo.Remove(tempo.Length()-1) ; // strip of the stream number added bt fDigInput | |
1056 | } | |
1057 | ||
1058 | //Calibration instance | |
1059 | fCalibData = emcalLoader->CalibData(); | |
1060 | return fInit ; | |
1061 | } | |
1062 | ||
1063 | //____________________________________________________________________________ | |
1064 | void AliEMCALDigitizer::InitParameters() | |
1065 | { | |
1066 | // Parameter initialization for digitizer | |
1067 | ||
1068 | // Get the parameters from the OCDB via the loader | |
1069 | AliRunLoader *rl = AliRunLoader::Instance(); | |
1070 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL")); | |
1071 | AliEMCALSimParam * simParam = 0x0; | |
1072 | if(emcalLoader) simParam = emcalLoader->SimulationParameters(); | |
1073 | ||
1074 | if(!simParam){ | |
1075 | simParam = AliEMCALSimParam::GetInstance(); | |
1076 | AliWarning("Simulation Parameters not available in OCDB?"); | |
1077 | } | |
1078 | ||
1079 | fMeanPhotonElectron = simParam->GetMeanPhotonElectron() ; // 4400; // electrons per GeV | |
1080 | fGainFluctuations = simParam->GetGainFluctuations() ; // 15.0; | |
1081 | ||
1082 | fPinNoise = simParam->GetPinNoise();//0.012; // pin noise in GeV from analysis test beam data | |
1083 | if (fPinNoise < 0.0001 ) | |
1084 | Warning("InitParameters", "No noise added\n") ; | |
1085 | fTimeNoise = simParam->GetTimeNoise(); // 1.28E-5 s | |
1086 | fDigitThreshold = simParam->GetDigitThreshold(); //fPinNoise * 3; // 3 * sigma | |
1087 | fTimeResolutionPar0 = simParam->GetTimeResolutionPar0(); | |
1088 | fTimeResolutionPar1 = simParam->GetTimeResolutionPar1(); | |
1089 | fTimeDelay = simParam->GetTimeDelay(); //600e-9 ; // 600 ns | |
1090 | ||
1091 | // These defaults are normally not used. | |
1092 | // Values are read from calibration database instead | |
1093 | fADCchannelEC = 0.0162; // Nominal value set online for most of the channels, MIP peak sitting at ~266./16/1024 | |
1094 | fADCpedestalEC = 0.0 ; // GeV | |
1095 | fADCchannelECDecal = 1.0; // No decalibration by default | |
1096 | fTimeChannel = 0.0; // No time calibration by default | |
1097 | fTimeChannelDecal = 0.0; // No time decalibration by default | |
1098 | ||
1099 | fNADCEC = simParam->GetNADCEC();//(Int_t) TMath::Power(2,16) ; // number of channels in Tower ADC - 65536 | |
1100 | ||
1101 | AliDebug(2,Form("Mean Photon Electron %d, Gain Fluct. %2.1f; Noise: APD %f, Time %f; Digit Threshold %d,Time Resolution Par0 %g Par1 %g,NADCEC %d", | |
1102 | fMeanPhotonElectron, fGainFluctuations, fPinNoise,fTimeNoise, fDigitThreshold,fTimeResolutionPar0,fTimeResolutionPar1,fNADCEC)); | |
1103 | ||
1104 | } | |
1105 | ||
1106 | //__________________________________________________________________ | |
1107 | void AliEMCALDigitizer::Print1(Option_t * option) | |
1108 | { // 19-nov-04 - just for convenience | |
1109 | Print(); | |
1110 | PrintDigits(option); | |
1111 | } | |
1112 | ||
1113 | //__________________________________________________________________ | |
1114 | void AliEMCALDigitizer::Print (Option_t * ) const | |
1115 | { | |
1116 | // Print Digitizer's parameters | |
1117 | printf("Print: \n------------------- %s -------------", GetName() ) ; | |
1118 | if( strcmp(fEventFolderName.Data(), "") != 0 ){ | |
1119 | printf(" Writing Digits to branch with title %s\n", fEventFolderName.Data()) ; | |
1120 | ||
1121 | Int_t nStreams ; | |
1122 | if (fDigInput) | |
1123 | nStreams = GetNInputStreams() ; | |
1124 | else | |
1125 | nStreams = fInput ; | |
1126 | ||
1127 | AliRunLoader *rl=0; | |
1128 | ||
1129 | Int_t index = 0 ; | |
1130 | for (index = 0 ; index < nStreams ; index++) { | |
1131 | TString tempo(fEventNames[index]) ; | |
1132 | tempo += index ; | |
1133 | if ((rl = AliRunLoader::GetRunLoader(tempo)) == 0) | |
1134 | rl = AliRunLoader::Open(fInputFileNames[index], tempo) ; | |
1135 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL")); | |
1136 | if(emcalLoader){ | |
1137 | TString fileName( emcalLoader->GetSDigitsFileName() ) ; | |
1138 | if ( fEventNames[index] != AliConfig::GetDefaultEventFolderName()) // only if not the default folder name | |
1139 | fileName = fileName.ReplaceAll(".root", "") + "_" + fEventNames[index] + ".root" ; | |
1140 | printf ("Adding SDigits from %s %s\n", fInputFileNames[index].Data(), fileName.Data()) ; | |
1141 | }//loader | |
1142 | } | |
1143 | ||
1144 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL")); | |
1145 | ||
1146 | if(emcalLoader) printf("\nWriting digits to %s", emcalLoader->GetDigitsFileName().Data()) ; | |
1147 | else printf("\nNULL LOADER"); | |
1148 | ||
1149 | printf("\nWith following parameters:\n") ; | |
1150 | printf(" Electronics noise in EMC, APD (fPinNoise) = %f, Time = %f \n", fPinNoise, fTimeNoise) ; | |
1151 | printf(" Threshold in Tower (fDigitThreshold) = %d\n", fDigitThreshold) ; | |
1152 | printf("---------------------------------------------------\n") ; | |
1153 | } | |
1154 | else | |
1155 | printf("Print: AliEMCALDigitizer not initialized") ; | |
1156 | } | |
1157 | ||
1158 | //__________________________________________________________________ | |
1159 | void AliEMCALDigitizer::PrintDigits(Option_t * option) | |
1160 | { | |
1161 | //utility method for printing digit information | |
1162 | ||
1163 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL")); | |
1164 | if(emcalLoader){ | |
1165 | TClonesArray * digits = emcalLoader->Digits() ; | |
1166 | TClonesArray * sdigits = emcalLoader->SDigits() ; | |
1167 | ||
1168 | printf("\n #Digits: %d : sdigits %d ", digits->GetEntriesFast(), sdigits->GetEntriesFast()) ; | |
1169 | printf("\n event %d", emcalLoader->GetRunLoader()->GetEventNumber()); | |
1170 | ||
1171 | if(strstr(option,"all")){ | |
1172 | //loop over digits | |
1173 | AliEMCALDigit * digit; | |
1174 | printf("\nEMC digits (with primaries):\n") ; | |
1175 | printf("\n Id Amplitude Time Index Nprim: Primaries list \n") ; | |
1176 | Int_t index ; | |
1177 | for (index = 0 ; index < digits->GetEntries() ; index++) { | |
1178 | digit = dynamic_cast<AliEMCALDigit *>(digits->At(index)) ; | |
1179 | if(digit){ | |
1180 | printf("\n%6d %8f %6.5e %4d %2d : ", | |
1181 | digit->GetId(), digit->GetAmplitude(), digit->GetTime(), digit->GetIndexInList(), digit->GetNprimary()) ; | |
1182 | Int_t iprimary; | |
1183 | for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) { | |
1184 | printf("%d ",digit->GetPrimary(iprimary+1) ) ; | |
1185 | } | |
1186 | }// digit exists | |
1187 | }// loop | |
1188 | } | |
1189 | printf("\n"); | |
1190 | }// loader exists | |
1191 | else printf("NULL LOADER, cannot print\n"); | |
1192 | } | |
1193 | ||
1194 | //__________________________________________________________________ | |
1195 | Float_t AliEMCALDigitizer::TimeOfNoise(void) | |
1196 | { | |
1197 | // Calculates the time signal generated by noise | |
1198 | //printf("Time noise %e\n",fTimeNoise); | |
1199 | return gRandom->Rndm() * fTimeNoise; | |
1200 | } | |
1201 | ||
1202 | //__________________________________________________________________ | |
1203 | void AliEMCALDigitizer::Unload() | |
1204 | { | |
1205 | // Unloads the SDigits and Digits | |
1206 | AliRunLoader *rl=0; | |
1207 | ||
1208 | Int_t i ; | |
1209 | for(i = 1 ; i < fInput ; i++){ | |
1210 | TString tempo(fEventNames[i]) ; | |
1211 | tempo += i; | |
1212 | if ((rl = AliRunLoader::GetRunLoader(tempo))) | |
1213 | rl->GetDetectorLoader("EMCAL")->UnloadSDigits() ; | |
1214 | } | |
1215 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL")); | |
1216 | if(emcalLoader)emcalLoader->UnloadDigits() ; | |
1217 | else AliFatal("Did not get the loader"); | |
1218 | } | |
1219 | ||
1220 | //_________________________________________________________________________________________ | |
1221 | void AliEMCALDigitizer::WriteDigits() | |
1222 | { // Makes TreeD in the output file. | |
1223 | // Check if branch already exists: | |
1224 | // if yes, exit without writing: ROOT TTree does not support overwriting/updating of | |
1225 | // already existing branches. | |
1226 | // else creates branch with Digits, named "EMCAL", title "...", | |
1227 | // and branch "AliEMCALDigitizer", with the same title to keep all the parameters | |
1228 | // and names of files, from which digits are made. | |
1229 | ||
1230 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL")); | |
1231 | ||
1232 | if(emcalLoader){ | |
1233 | const TClonesArray * digits = emcalLoader->Digits() ; | |
1234 | TTree * treeD = emcalLoader->TreeD(); | |
1235 | if ( !treeD ) { | |
1236 | emcalLoader->MakeDigitsContainer(); | |
1237 | treeD = emcalLoader->TreeD(); | |
1238 | } | |
1239 | ||
1240 | // -- create Digits branch | |
1241 | Int_t bufferSize = 32000 ; | |
1242 | TBranch * digitsBranch = 0; | |
1243 | if ((digitsBranch = treeD->GetBranch("EMCAL"))) { | |
1244 | digitsBranch->SetAddress(&digits); | |
1245 | AliWarning("Digits Branch already exists. Not all digits will be visible"); | |
1246 | } | |
1247 | else | |
1248 | treeD->Branch("EMCAL","TClonesArray",&digits,bufferSize); | |
1249 | //digitsBranch->SetTitle(fEventFolderName); | |
1250 | ||
1251 | // treeD->Fill() ; | |
1252 | /* | |
1253 | emcalLoader->WriteDigits("OVERWRITE"); | |
1254 | emcalLoader->WriteDigitizer("OVERWRITE"); | |
1255 | ||
1256 | Unload() ; | |
1257 | */ | |
1258 | ||
1259 | }// loader exists | |
1260 | else AliFatal("Loader not available"); | |
1261 | } | |
1262 | ||
1263 | //__________________________________________________________________ | |
1264 | void AliEMCALDigitizer::WriteDigits(TClonesArray* digits, const char* branchName) | |
1265 | { | |
1266 | // overloaded method | |
1267 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL")); | |
1268 | if(emcalLoader){ | |
1269 | ||
1270 | TTree* treeD = emcalLoader->TreeD(); | |
1271 | if (!treeD) | |
1272 | { | |
1273 | emcalLoader->MakeDigitsContainer(); | |
1274 | treeD = emcalLoader->TreeD(); | |
1275 | } | |
1276 | ||
1277 | // -- create Digits branch | |
1278 | Int_t bufferSize = 32000; | |
1279 | ||
1280 | if (TBranch* triggerBranch = treeD->GetBranch(branchName)) | |
1281 | { | |
1282 | triggerBranch->SetAddress(&digits); | |
1283 | } | |
1284 | else | |
1285 | { | |
1286 | treeD->Branch(branchName,"TClonesArray",&digits,bufferSize); | |
1287 | } | |
1288 | ||
1289 | // treeD->Fill(); | |
1290 | }// loader exists | |
1291 | else AliFatal("Loader not available"); | |
1292 | } | |
1293 | ||
1294 | //__________________________________________________________________ | |
1295 | Bool_t AliEMCALDigitizer::IsDead(AliEMCALDigit *digit) | |
1296 | { | |
1297 | // Check if cell is defined as dead, so that it is not included | |
1298 | // input is digit | |
1299 | Int_t absId = digit->GetId(); | |
1300 | ||
1301 | return IsDead(absId); | |
1302 | ||
1303 | } | |
1304 | ||
1305 | ||
1306 | //__________________________________________________________________ | |
1307 | Bool_t AliEMCALDigitizer::IsDead(Int_t absId) | |
1308 | { | |
1309 | // Check if cell absID is defined as dead, so that it is not included | |
1310 | ||
1311 | AliRunLoader *runLoader = AliRunLoader::Instance(); | |
1312 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(runLoader->GetDetectorLoader("EMCAL")); | |
1313 | if (!emcalLoader) | |
1314 | { | |
1315 | AliFatal("Did not get the Loader"); | |
1316 | return kTRUE; | |
1317 | } | |
1318 | ||
1319 | AliCaloCalibPedestal *caloPed = emcalLoader->PedestalData(); | |
1320 | if (!caloPed) | |
1321 | { | |
1322 | AliWarning("Could not access pedestal data! No dead channel removal applied"); | |
1323 | return kFALSE; | |
1324 | } | |
1325 | ||
1326 | // Load Geometry | |
1327 | const AliEMCALGeometry *geom = AliEMCALGeometry::GetInstance(); | |
1328 | if (!geom) | |
1329 | { | |
1330 | AliFatal("Did not get geometry from EMCALLoader"); | |
1331 | return kTRUE; //coverity | |
1332 | } | |
1333 | ||
1334 | Int_t iSupMod = -1; | |
1335 | Int_t nModule = -1; | |
1336 | Int_t nIphi = -1; | |
1337 | Int_t nIeta = -1; | |
1338 | Int_t iphi = -1; | |
1339 | Int_t ieta = -1; | |
1340 | ||
1341 | Bool_t bCell = geom->GetCellIndex(absId, iSupMod, nModule, nIphi, nIeta) ; | |
1342 | ||
1343 | if (!bCell) Error("IsDead","Wrong cell id number : absId %i ", absId) ; | |
1344 | geom->GetCellPhiEtaIndexInSModule(iSupMod,nModule,nIphi, nIeta,iphi,ieta); | |
1345 | ||
1346 | Int_t channelStatus = (Int_t)(caloPed->GetDeadMap(iSupMod))->GetBinContent(ieta,iphi); | |
1347 | ||
1348 | if (channelStatus == AliCaloCalibPedestal::kDead) | |
1349 | return kTRUE; | |
1350 | else | |
1351 | return kFALSE; | |
1352 | } | |
1353 |