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61e0abb5 | 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 | //_________________________________________________________________________ | |
ffa6d63b | 19 | // |
61e0abb5 | 20 | ////////////////////////////////////////////////////////////////////////////// |
ab6a174f | 21 | // Class performs digitization of Summable digits from simulated data |
ffa6d63b | 22 | // |
6cc75819 | 23 | // In addition it performs mixing/embedding of summable digits from different events. |
61e0abb5 | 24 | // |
61d80ce0 | 25 | // For each event 3 branches are created in TreeD: |
61e0abb5 | 26 | // "EMCAL" - list of digits |
61d80ce0 | 27 | // "EMCALTRG" - list of trigger digits |
61e0abb5 | 28 | // "AliEMCALDigitizer" - AliEMCALDigitizer with all parameters used in digitization |
29 | // | |
61e0abb5 | 30 | // |
ffa6d63b | 31 | //////////////////////////////////////////////////////////////////////////////////// |
61e0abb5 | 32 | // |
ffa6d63b | 33 | //*-- Author: Sahal Yacoob (LBL) |
814ad4bf | 34 | // based on : AliEMCALDigitizer |
05a92d59 | 35 | // Modif: |
36 | // August 2002 Yves Schutz: clone PHOS as closely as possible and intoduction | |
6cc75819 | 37 | // of new IO (a la PHOS) |
1963b290 | 38 | // November 2003 Aleksei Pavlinov : adopted for Shish-Kebab geometry |
61d80ce0 | 39 | // July 2011 GCB: Digitizer modified to accomodate embedding. |
40 | // Time calibration added. Decalibration possibility of energy and time added | |
1963b290 | 41 | //_________________________________________________________________________________ |
61e0abb5 | 42 | |
43 | // --- ROOT system --- | |
e939a978 | 44 | #include <TROOT.h> |
45 | #include <TTree.h> | |
46 | #include <TSystem.h> | |
47 | #include <TBenchmark.h> | |
e939a978 | 48 | #include <TBrowser.h> |
49 | #include <TObjectTable.h> | |
50 | #include <TRandom.h> | |
916f1e76 | 51 | #include <TF1.h> |
21e7df44 | 52 | #include <cassert> |
61e0abb5 | 53 | |
54 | // --- AliRoot header files --- | |
b42d4197 | 55 | #include "AliLog.h" |
e4dcc484 | 56 | #include "AliRun.h" |
f21fc003 | 57 | #include "AliDigitizationInput.h" |
5dee926e | 58 | #include "AliRunLoader.h" |
53f1c378 | 59 | #include "AliCDBManager.h" |
60 | #include "AliCDBEntry.h" | |
61e0abb5 | 61 | #include "AliEMCALDigit.h" |
05a92d59 | 62 | #include "AliEMCAL.h" |
5dee926e | 63 | #include "AliEMCALLoader.h" |
61e0abb5 | 64 | #include "AliEMCALDigitizer.h" |
65 | #include "AliEMCALSDigitizer.h" | |
66 | #include "AliEMCALGeometry.h" | |
a435f763 | 67 | #include "AliEMCALCalibData.h" |
33a52e55 | 68 | #include "AliEMCALSimParam.h" |
916f1e76 | 69 | #include "AliEMCALRawDigit.h" |
70 | ||
61d80ce0 | 71 | namespace |
72 | { | |
73 | Double_t HeavisideTheta(Double_t x) | |
74 | { | |
75 | Double_t signal = 0.; | |
76 | ||
77 | if (x > 0.) signal = 1.; | |
78 | ||
79 | return signal; | |
80 | } | |
81 | ||
82 | Double_t AnalogFastORFunction(Double_t *x, Double_t *par) | |
83 | { | |
84 | Double_t v0 = par[0]; | |
85 | Double_t t0 = par[1]; | |
86 | Double_t tr = par[2]; | |
87 | ||
88 | Double_t R1 = 1000.; | |
89 | Double_t C1 = 33e-12; | |
90 | Double_t R2 = 1800; | |
91 | Double_t C2 = 22e-12; | |
92 | ||
93 | Double_t t = x[0]; | |
94 | ||
95 | return (((0.8*(-((TMath::Power(C1,2)*C2*TMath::Power(TMath::E(),(-t + t0)/(C1*R1))* | |
96 | TMath::Power(R1,2)*R2)/(C1*R1 - C2*R2)) + | |
97 | C1*C2*R1*R2*(1 - (C2*TMath::Power(TMath::E(),(-t + t0)/(C2*R2))*R2)/(-(C1*R1) + C2*R2)))*v0* | |
98 | HeavisideTheta(t - t0))/tr | |
99 | - (0.8*(C1*C2*R1*R2 - | |
100 | (TMath::Power(C1,2)*C2*TMath::Power(TMath::E(),(-1.*t + t0 + 1.25*tr)/(C1*R1))* | |
101 | TMath::Power(R1,2)*R2)/(C1*R1 - C2*R2) + | |
102 | (C1*TMath::Power(C2,2)*TMath::Power(TMath::E(),(-1.*t + t0 + 1.25*tr)/(C2*R2))* | |
103 | R1*TMath::Power(R2,2))/(C1*R1 - C2*R2))*v0* | |
104 | HeavisideTheta(t - t0 - 1.25*tr))/tr)/(C2*R1)); | |
105 | } | |
106 | } | |
05a92d59 | 107 | |
61e0abb5 | 108 | ClassImp(AliEMCALDigitizer) |
61d80ce0 | 109 | |
110 | ||
61e0abb5 | 111 | //____________________________________________________________________________ |
18a21c7c | 112 | AliEMCALDigitizer::AliEMCALDigitizer() |
113 | : AliDigitizer("",""), | |
114 | fDefaultInit(kTRUE), | |
115 | fDigitsInRun(0), | |
116 | fInit(0), | |
117 | fInput(0), | |
118 | fInputFileNames(0x0), | |
119 | fEventNames(0x0), | |
120 | fDigitThreshold(0), | |
121 | fMeanPhotonElectron(0), | |
5fb45456 | 122 | fGainFluctuations(0), |
18a21c7c | 123 | fPinNoise(0), |
6cc75819 | 124 | fTimeNoise(0), |
f0a6dc6f | 125 | fTimeDelay(0), |
a2f8e711 | 126 | fTimeResolutionPar0(0), |
127 | fTimeResolutionPar1(0), | |
18a21c7c | 128 | fADCchannelEC(0), |
129 | fADCpedestalEC(0), | |
6cc75819 | 130 | fADCchannelECDecal(0), |
131 | fTimeChannel(0), | |
132 | fTimeChannelDecal(0), | |
18a21c7c | 133 | fNADCEC(0), |
134 | fEventFolderName(""), | |
135 | fFirstEvent(0), | |
136 | fLastEvent(0), | |
f21fc003 | 137 | fCalibData(0x0), |
138 | fSDigitizer(0x0) | |
61e0abb5 | 139 | { |
140 | // ctor | |
88cb7938 | 141 | InitParameters() ; |
f21fc003 | 142 | fDigInput = 0 ; // We work in the standalone mode |
839828a6 | 143 | } |
61e0abb5 | 144 | |
839828a6 | 145 | //____________________________________________________________________________ |
18a21c7c | 146 | AliEMCALDigitizer::AliEMCALDigitizer(TString alirunFileName, TString eventFolderName) |
f21fc003 | 147 | : AliDigitizer("EMCALDigitizer", alirunFileName), |
18a21c7c | 148 | fDefaultInit(kFALSE), |
149 | fDigitsInRun(0), | |
150 | fInit(0), | |
151 | fInput(0), | |
152 | fInputFileNames(0), | |
153 | fEventNames(0), | |
154 | fDigitThreshold(0), | |
155 | fMeanPhotonElectron(0), | |
5fb45456 | 156 | fGainFluctuations(0), |
18a21c7c | 157 | fPinNoise(0), |
6cc75819 | 158 | fTimeNoise(0), |
96d5ea0d | 159 | fTimeDelay(0), |
a2f8e711 | 160 | fTimeResolutionPar0(0), |
161 | fTimeResolutionPar1(0), | |
18a21c7c | 162 | fADCchannelEC(0), |
163 | fADCpedestalEC(0), | |
6cc75819 | 164 | fADCchannelECDecal(0), |
165 | fTimeChannel(0), | |
166 | fTimeChannelDecal(0), | |
18a21c7c | 167 | fNADCEC(0), |
168 | fEventFolderName(eventFolderName), | |
169 | fFirstEvent(0), | |
170 | fLastEvent(0), | |
f21fc003 | 171 | fCalibData(0x0), |
172 | fSDigitizer(0x0) | |
839828a6 | 173 | { |
05a92d59 | 174 | // ctor |
a9485c37 | 175 | InitParameters() ; |
88cb7938 | 176 | Init() ; |
f21fc003 | 177 | fDigInput = 0 ; // We work in the standalone mode |
61e0abb5 | 178 | } |
839828a6 | 179 | |
61e0abb5 | 180 | //____________________________________________________________________________ |
18a21c7c | 181 | AliEMCALDigitizer::AliEMCALDigitizer(const AliEMCALDigitizer & d) |
182 | : AliDigitizer(d.GetName(),d.GetTitle()), | |
183 | fDefaultInit(d.fDefaultInit), | |
184 | fDigitsInRun(d.fDigitsInRun), | |
185 | fInit(d.fInit), | |
186 | fInput(d.fInput), | |
187 | fInputFileNames(d.fInputFileNames), | |
188 | fEventNames(d.fEventNames), | |
189 | fDigitThreshold(d.fDigitThreshold), | |
190 | fMeanPhotonElectron(d.fMeanPhotonElectron), | |
5fb45456 | 191 | fGainFluctuations(d.fGainFluctuations), |
18a21c7c | 192 | fPinNoise(d.fPinNoise), |
6cc75819 | 193 | fTimeNoise(d.fTimeNoise), |
f0a6dc6f | 194 | fTimeDelay(d.fTimeDelay), |
a2f8e711 | 195 | fTimeResolutionPar0(d.fTimeResolutionPar0), |
196 | fTimeResolutionPar1(d.fTimeResolutionPar1), | |
18a21c7c | 197 | fADCchannelEC(d.fADCchannelEC), |
198 | fADCpedestalEC(d.fADCpedestalEC), | |
6cc75819 | 199 | fADCchannelECDecal(d.fADCchannelECDecal), |
200 | fTimeChannel(d.fTimeChannel), fTimeChannelDecal(d.fTimeChannelDecal), | |
18a21c7c | 201 | fNADCEC(d.fNADCEC), |
202 | fEventFolderName(d.fEventFolderName), | |
203 | fFirstEvent(d.fFirstEvent), | |
204 | fLastEvent(d.fLastEvent), | |
f21fc003 | 205 | fCalibData(d.fCalibData), |
206 | fSDigitizer(d.fSDigitizer ? new AliEMCALSDigitizer(*d.fSDigitizer) : 0) | |
88cb7938 | 207 | { |
208 | // copyy ctor | |
96d5ea0d | 209 | } |
88cb7938 | 210 | |
211 | //____________________________________________________________________________ | |
f21fc003 | 212 | AliEMCALDigitizer::AliEMCALDigitizer(AliDigitizationInput * rd) |
213 | : AliDigitizer(rd,"EMCALDigitizer"), | |
18a21c7c | 214 | fDefaultInit(kFALSE), |
215 | fDigitsInRun(0), | |
216 | fInit(0), | |
217 | fInput(0), | |
218 | fInputFileNames(0), | |
219 | fEventNames(0), | |
da509d54 | 220 | fDigitThreshold(0), |
18a21c7c | 221 | fMeanPhotonElectron(0), |
5fb45456 | 222 | fGainFluctuations(0), |
da509d54 | 223 | fPinNoise(0.), |
6cc75819 | 224 | fTimeNoise(0.), |
f0a6dc6f | 225 | fTimeDelay(0.), |
a2f8e711 | 226 | fTimeResolutionPar0(0.), |
227 | fTimeResolutionPar1(0.), | |
18a21c7c | 228 | fADCchannelEC(0), |
229 | fADCpedestalEC(0), | |
6cc75819 | 230 | fADCchannelECDecal(0), |
231 | fTimeChannel(0), | |
232 | fTimeChannelDecal(0), | |
18a21c7c | 233 | fNADCEC(0), |
234 | fEventFolderName(0), | |
235 | fFirstEvent(0), | |
236 | fLastEvent(0), | |
f21fc003 | 237 | fCalibData(0x0), |
238 | fSDigitizer(0x0) | |
61e0abb5 | 239 | { |
45fa49ca | 240 | // ctor Init() is called by RunDigitizer |
f21fc003 | 241 | fDigInput = rd ; |
242 | fEventFolderName = fDigInput->GetInputFolderName(0) ; | |
243 | SetTitle(dynamic_cast<AliStream*>(fDigInput->GetInputStream(0))->GetFileName(0)); | |
05a92d59 | 244 | InitParameters() ; |
839828a6 | 245 | } |
814ad4bf | 246 | |
839828a6 | 247 | //____________________________________________________________________________ |
248 | AliEMCALDigitizer::~AliEMCALDigitizer() | |
249 | { | |
14ce0a6e | 250 | //dtor |
f5f384f4 | 251 | delete [] fInputFileNames ; |
252 | delete [] fEventNames ; | |
f21fc003 | 253 | if (fSDigitizer) delete fSDigitizer; |
61e0abb5 | 254 | } |
255 | ||
256 | //____________________________________________________________________________ | |
09884213 | 257 | void AliEMCALDigitizer::Digitize(Int_t event) |
05a92d59 | 258 | { |
96d5ea0d | 259 | |
61e0abb5 | 260 | // Makes the digitization of the collected summable digits |
261 | // for this it first creates the array of all EMCAL modules | |
ab6a174f | 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 | // | |
1963b290 | 271 | static int nEMC=0; //max number of digits possible |
33c3c91a | 272 | AliRunLoader *rl = AliRunLoader::Instance(); |
5dee926e | 273 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL")); |
7e1d9a9b | 274 | |
275 | if(emcalLoader){ | |
6cc75819 | 276 | Int_t readEvent = event ; |
f21fc003 | 277 | // fDigInput is data member from AliDigitizer |
278 | if (fDigInput) | |
279 | readEvent = dynamic_cast<AliStream*>(fDigInput->GetInputStream(0))->GetCurrentEventNumber() ; | |
6cc75819 | 280 | AliDebug(1,Form("Adding event %d from input stream 0 %s %s", |
281 | readEvent, GetTitle(), fEventFolderName.Data())) ; | |
282 | rl->GetEvent(readEvent); | |
7e1d9a9b | 283 | |
6cc75819 | 284 | TClonesArray * digits = emcalLoader->Digits() ; |
285 | digits->Delete() ; //correct way to clear array when memory is | |
286 | //allocated by objects stored in array | |
88cb7938 | 287 | |
6cc75819 | 288 | // Load Geometry |
289 | AliEMCALGeometry *geom = 0; | |
290 | if (!rl->GetAliRun()) { | |
291 | AliFatal("Could not get AliRun from runLoader"); | |
96d5ea0d | 292 | } |
6cc75819 | 293 | else{ |
294 | AliEMCAL * emcal = (AliEMCAL*)rl->GetAliRun()->GetDetector("EMCAL"); | |
295 | geom = emcal->GetGeometry(); | |
296 | nEMC = geom->GetNCells(); | |
297 | AliDebug(1,Form("nEMC %i (number cells in EMCAL) | %s \n", nEMC, geom->GetName())); | |
298 | } | |
299 | ||
300 | Int_t absID = -1 ; | |
301 | ||
302 | digits->Expand(nEMC) ; | |
96d5ea0d | 303 | |
f21fc003 | 304 | // RS create a digitizer on the fly |
305 | if (!fSDigitizer) fSDigitizer = new AliEMCALSDigitizer(rl->GetFileName().Data()); | |
306 | fSDigitizer->SetEventRange(0, -1) ; | |
307 | // | |
308 | //take all the inputs to add together and load the SDigits | |
309 | TObjArray * sdigArray = new TObjArray(fInput) ; | |
310 | sdigArray->AddAt(emcalLoader->SDigits(), 0) ; | |
311 | Int_t i ; | |
312 | Int_t embed = kFALSE; | |
313 | for(i = 1 ; i < fInput ; i++){ | |
314 | TString tempo(fEventNames[i]) ; | |
315 | tempo += i ; | |
6cc75819 | 316 | |
f21fc003 | 317 | AliRunLoader * rl2 = AliRunLoader::GetRunLoader(tempo) ; |
6cc75819 | 318 | |
f21fc003 | 319 | if (rl2==0) |
320 | rl2 = AliRunLoader::Open(fInputFileNames[i], tempo) ; | |
6cc75819 | 321 | |
f21fc003 | 322 | if (fDigInput) |
323 | readEvent = dynamic_cast<AliStream*>(fDigInput->GetInputStream(i))->GetCurrentEventNumber() ; | |
324 | Info("Digitize", "Adding event %d from input stream %d %s %s", readEvent, i, fInputFileNames[i].Data(), tempo.Data()) ; | |
325 | rl2->LoadSDigits(); | |
326 | // rl2->LoadDigits(); | |
327 | rl2->GetEvent(readEvent); | |
328 | if(rl2->GetDetectorLoader("EMCAL")) | |
6cc75819 | 329 | { |
330 | AliEMCALLoader *emcalLoader2 = dynamic_cast<AliEMCALLoader*>(rl2->GetDetectorLoader("EMCAL")); | |
331 | ||
332 | if(emcalLoader2) { | |
333 | //Merge 2 simulated sdigits | |
334 | if(emcalLoader2->SDigits()){ | |
335 | TClonesArray* sdigits2 = emcalLoader2->SDigits(); | |
336 | sdigArray->AddAt(sdigits2, i) ; | |
1c67f0f5 | 337 | // Check if first sdigit is of embedded type, if so, handle the sdigits differently: |
6cc75819 | 338 | // do not smear energy of embedded, do not add noise to any sdigits |
339 | if(sdigits2->GetEntriesFast()>0){ | |
f21fc003 | 340 | //printf("Merged digit type: %d\n",dynamic_cast<AliEMCALDigit*> (sdigits2->At(0))->GetType()); |
341 | AliEMCALDigit * digit2 = dynamic_cast<AliEMCALDigit*> (sdigits2->At(0)); | |
342 | if(digit2 && digit2->GetType()==AliEMCALDigit::kEmbedded){ | |
343 | embed = kTRUE; | |
344 | } | |
6cc75819 | 345 | } |
346 | } | |
96d5ea0d | 347 | |
6cc75819 | 348 | }//loader2 |
349 | else AliFatal("EMCAL Loader of second event not available!"); | |
350 | ||
351 | } | |
f21fc003 | 352 | else Fatal("Digitize", "Loader of second input not found"); |
353 | }// input loop | |
354 | ||
355 | //Find the first tower with signal | |
356 | Int_t nextSig = nEMC + 1 ; | |
357 | TClonesArray * sdigits ; | |
358 | for(i = 0 ; i < fInput ; i++){ | |
359 | if(i > 0 && embed) continue; | |
360 | sdigits = dynamic_cast<TClonesArray *>(sdigArray->At(i)) ; | |
361 | if(sdigits){ | |
362 | if (sdigits->GetEntriesFast() ){ | |
363 | AliEMCALDigit *sd = dynamic_cast<AliEMCALDigit *>(sdigits->At(0)); | |
364 | if(sd){ | |
365 | Int_t curNext = sd->GetId() ; | |
366 | if(curNext < nextSig) | |
367 | nextSig = curNext ; | |
368 | AliDebug(1,Form("input %i : #sdigits %i \n", | |
369 | i, sdigits->GetEntriesFast())); | |
6cc75819 | 370 | |
f21fc003 | 371 | }//First entry is not NULL |
372 | else { | |
373 | Info("Digitize", "NULL sdigit pointer"); | |
374 | continue; | |
375 | } | |
376 | }//There is at least one entry | |
377 | else { | |
378 | Info("Digitize", "NULL sdigits array"); | |
379 | continue; | |
380 | } | |
381 | }// SDigits array exists | |
382 | else { | |
383 | Info("Digitizer","Null sdigit pointer"); | |
384 | continue; | |
385 | } | |
386 | }// input loop | |
387 | AliDebug(1,Form("FIRST tower with signal %i \n", nextSig)); | |
6cc75819 | 388 | |
f21fc003 | 389 | TArrayI index(fInput) ; |
390 | index.Reset() ; //Set all indexes to zero | |
6cc75819 | 391 | |
f21fc003 | 392 | AliEMCALDigit * digit ; |
393 | AliEMCALDigit * curSDigit ; | |
96d5ea0d | 394 | |
f21fc003 | 395 | //Put Noise contribution, smear time and energy |
396 | Float_t timeResolution = 0; | |
397 | for(absID = 0; absID < nEMC; absID++){ // Nov 30, 2006 by PAI; was from 1 to nEMC | |
398 | Float_t energy = 0 ; | |
96d5ea0d | 399 | |
f21fc003 | 400 | // amplitude set to zero, noise will be added later |
401 | Float_t noiseTime = 0.; | |
402 | if(!embed) noiseTime = TimeOfNoise(); //No need for embedded events? | |
403 | new((*digits)[absID]) AliEMCALDigit( -1, -1, absID, 0., noiseTime,kFALSE); // absID-1->absID | |
404 | //look if we have to add signal? | |
405 | digit = dynamic_cast<AliEMCALDigit *>(digits->At(absID)); // absID-1->absID | |
6cc75819 | 406 | |
f21fc003 | 407 | if (digit) { |
96d5ea0d | 408 | |
f21fc003 | 409 | if(absID==nextSig){ |
6cc75819 | 410 | |
f21fc003 | 411 | // Calculate time as time of the largest digit |
412 | Float_t time = digit->GetTime() ; | |
413 | Float_t aTime= digit->GetAmplitude() ; | |
6cc75819 | 414 | |
f21fc003 | 415 | // loop over input |
416 | Int_t nInputs = fInput; | |
417 | if(embed) nInputs = 1; // In case of embedding, merge later real digits, do not smear energy and time of data | |
418 | for(i = 0; i< nInputs ; i++){ //loop over (possible) merge sources | |
419 | TClonesArray* sdtclarr = dynamic_cast<TClonesArray *>(sdigArray->At(i)); | |
420 | if(sdtclarr) { | |
421 | Int_t sDigitEntries = sdtclarr->GetEntriesFast(); | |
6cc75819 | 422 | |
f21fc003 | 423 | if(sDigitEntries > index[i] ) |
424 | curSDigit = dynamic_cast<AliEMCALDigit*>(sdtclarr->At(index[i])) ; | |
425 | else | |
426 | curSDigit = 0 ; | |
6cc75819 | 427 | |
f21fc003 | 428 | //May be several digits will contribute from the same input |
429 | while(curSDigit && (curSDigit->GetId() == absID)){ | |
430 | //Shift primary to separate primaries belonging different inputs | |
431 | Int_t primaryoffset ; | |
432 | if(fDigInput) | |
433 | primaryoffset = fDigInput->GetMask(i) ; | |
434 | else | |
435 | primaryoffset = i ; | |
436 | curSDigit->ShiftPrimary(primaryoffset) ; | |
6cc75819 | 437 | |
f21fc003 | 438 | if(curSDigit->GetAmplitude()>aTime) { |
439 | aTime = curSDigit->GetAmplitude(); | |
440 | time = curSDigit->GetTime(); | |
441 | } | |
6cc75819 | 442 | |
f21fc003 | 443 | *digit = *digit + *curSDigit ; //adds amplitudes of each digit |
6cc75819 | 444 | |
f21fc003 | 445 | index[i]++ ; |
6cc75819 | 446 | |
f21fc003 | 447 | if( sDigitEntries > index[i] ) |
448 | curSDigit = dynamic_cast<AliEMCALDigit*>(sdtclarr->At(index[i])) ; | |
449 | else | |
450 | curSDigit = 0 ; | |
451 | }// while | |
452 | }// source exists | |
453 | }// loop over merging sources | |
6cc75819 | 454 | |
455 | ||
f21fc003 | 456 | //Here we convert the summed amplitude to an energy in GeV only for simulation or mixing of simulations |
457 | energy = fSDigitizer->Calibrate(digit->GetAmplitude()) ; // GeV | |
6cc75819 | 458 | |
f21fc003 | 459 | // add fluctuations for photo-electron creation |
5fb45456 | 460 | // corrected fluctuations after comparison with beam test, Paraskevi Ganoti (06/11/2011) |
461 | Float_t fluct = static_cast<Float_t>((energy*fMeanPhotonElectron)/fGainFluctuations); | |
462 | energy *= static_cast<Float_t>(gRandom->Poisson(fluct)) / fluct ; | |
463 | ||
f21fc003 | 464 | //calculate and set time |
465 | digit->SetTime(time) ; | |
6cc75819 | 466 | |
f21fc003 | 467 | //Find next signal module |
468 | nextSig = nEMC + 1 ; | |
469 | for(i = 0 ; i < nInputs ; i++){ | |
470 | sdigits = dynamic_cast<TClonesArray *>(sdigArray->At(i)) ; | |
6cc75819 | 471 | |
f21fc003 | 472 | if(sdigits){ |
473 | Int_t curNext = nextSig ; | |
474 | if(sdigits->GetEntriesFast() > index[i]) | |
6cc75819 | 475 | { |
476 | AliEMCALDigit * tmpdigit = dynamic_cast<AliEMCALDigit *>(sdigits->At(index[i])); | |
477 | if(tmpdigit) | |
f21fc003 | 478 | { |
479 | curNext = tmpdigit->GetId() ; | |
480 | } | |
6cc75819 | 481 | } |
f21fc003 | 482 | if(curNext < nextSig) nextSig = curNext ; |
483 | }// sdigits exist | |
484 | } // input loop | |
6cc75819 | 485 | |
f21fc003 | 486 | }//absID==nextSig |
96d5ea0d | 487 | |
f21fc003 | 488 | // add the noise now, no need for embedded events with real data |
489 | if(!embed) | |
b6ad0139 | 490 | energy += gRandom->Gaus(0., fPinNoise) ; |
96d5ea0d | 491 | |
6cc75819 | 492 | |
f21fc003 | 493 | // JLK 26-June-2008 |
494 | //Now digitize the energy according to the fSDigitizer method, | |
495 | //which merely converts the energy to an integer. Later we will | |
496 | //check that the stored value matches our allowed dynamic ranges | |
497 | digit->SetAmplitude(fSDigitizer->Digitize(energy)) ; | |
96d5ea0d | 498 | |
f21fc003 | 499 | //Set time resolution with final energy |
500 | timeResolution = GetTimeResolution(energy); | |
501 | digit->SetTime(gRandom->Gaus(digit->GetTime(),timeResolution) ) ; | |
502 | AliDebug(10,Form(" absID %5i energy %f nextSig %5i\n", | |
503 | absID, energy, nextSig)); | |
504 | //Add delay to time | |
505 | digit->SetTime(digit->GetTime()+fTimeDelay) ; | |
6cc75819 | 506 | |
f21fc003 | 507 | }// Digit pointer exists |
508 | else{ | |
509 | Info("Digitizer","Digit pointer is null"); | |
510 | } | |
511 | } // for(absID = 0; absID < nEMC; absID++) | |
6cc75819 | 512 | |
513 | //ticks->Delete() ; | |
514 | //delete ticks ; | |
515 | ||
516 | //Embed simulated amplitude (and time?) to real data digits | |
f21fc003 | 517 | if(embed){ |
518 | for(Int_t input = 1; input<fInput; input++){ | |
519 | TClonesArray *realDigits = dynamic_cast<TClonesArray*> (sdigArray->At(input)); | |
520 | if(!realDigits){ | |
521 | AliDebug(1,"No sdigits to merge\n"); | |
522 | continue; | |
523 | } | |
524 | for(Int_t i2 = 0 ; i2 < realDigits->GetEntriesFast() ; i2++){ | |
525 | AliEMCALDigit * digit2 = dynamic_cast<AliEMCALDigit*>( realDigits->At(i2) ) ; | |
526 | if(digit2){ | |
527 | digit = dynamic_cast<AliEMCALDigit*>( digits->At(digit2->GetId()) ) ; | |
528 | if(digit){ | |
96d5ea0d | 529 | |
f21fc003 | 530 | // Put the embedded cell energy in same units as simulated sdigits -> transform to energy units |
531 | // and multiply to get a big int. | |
532 | Float_t time2 = digit2->GetTime(); | |
533 | Float_t e2 = digit2->GetAmplitude(); | |
534 | CalibrateADCTime(e2,time2,digit2->GetId()); | |
535 | Float_t amp2 = fSDigitizer->Digitize(e2); | |
96d5ea0d | 536 | |
f21fc003 | 537 | Float_t e0 = digit ->GetAmplitude(); |
538 | if(e0>0.01) | |
539 | 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", | |
540 | digit ->GetId(),digit ->GetAmplitude(), digit ->GetType(), digit->GetTime(), | |
541 | digit2->GetId(),amp2, digit2->GetType(), time2 )); | |
96d5ea0d | 542 | |
f21fc003 | 543 | // Sum amplitudes, change digit amplitude |
544 | digit->SetAmplitude( digit->GetAmplitude() + amp2); | |
545 | // Rough assumption, assign time of the largest of the 2 digits, | |
546 | // data or signal to the final digit. | |
547 | if(amp2 > digit->GetAmplitude()) digit->SetTime(time2); | |
548 | //Mark the new digit as embedded | |
549 | digit->SetType(AliEMCALDigit::kEmbedded); | |
6cc75819 | 550 | |
f21fc003 | 551 | if(digit2->GetAmplitude()>0.01 && e0> 0.01 ) |
552 | AliDebug(1,Form("Embedded digit: Abs ID %d, amp %f, type %d\n", | |
553 | digit->GetId(), digit->GetAmplitude(), digit->GetType())); | |
554 | }//digit2 | |
555 | }//digit2 | |
556 | }//loop digit 2 | |
557 | }//input loop | |
558 | }//embed | |
559 | ||
560 | //JLK is it better to call Clear() here? | |
561 | delete sdigArray ; //We should not delete its contents | |
562 | ||
563 | //remove digits below thresholds | |
564 | // until 10-02-2010 remove digits with energy smaller than fDigitThreshold 3*fPinNoise | |
565 | // now, remove digits with Digitized ADC smaller than fDigitThreshold = 3, | |
566 | // before merge in the same loop real data digits if available | |
567 | Float_t energy = 0; | |
568 | Float_t time = 0; | |
569 | for(i = 0 ; i < nEMC ; i++){ | |
570 | digit = dynamic_cast<AliEMCALDigit*>( digits->At(i) ) ; | |
571 | if(digit){ | |
96d5ea0d | 572 | |
f21fc003 | 573 | //Then get the energy in GeV units. |
574 | energy = fSDigitizer->Calibrate(digit->GetAmplitude()) ; | |
575 | //Then digitize using the calibration constants of the ocdb | |
576 | Float_t ampADC = energy; | |
577 | DigitizeEnergyTime(ampADC, time, digit->GetId()) ; | |
578 | if(ampADC < fDigitThreshold) | |
579 | digits->RemoveAt(i) ; | |
7d525d9d | 580 | |
f21fc003 | 581 | }// digit exists |
582 | } // digit loop | |
583 | ||
584 | digits->Compress() ; | |
585 | ||
586 | Int_t ndigits = digits->GetEntriesFast() ; | |
587 | ||
588 | //JLK 26-June-2008 | |
589 | //After we have done the summing and digitizing to create the | |
590 | //digits, now we want to calibrate the resulting amplitude to match | |
591 | //the dynamic range of our real data. | |
592 | for (i = 0 ; i < ndigits ; i++) { | |
593 | digit = dynamic_cast<AliEMCALDigit *>( digits->At(i) ) ; | |
594 | if(digit){ | |
595 | digit->SetIndexInList(i) ; | |
596 | energy = fSDigitizer->Calibrate(digit->GetAmplitude()) ; | |
597 | time = digit->GetTime(); | |
598 | Float_t ampADC = energy; | |
599 | DigitizeEnergyTime(ampADC, time, digit->GetId()); | |
600 | digit->SetAmplitude(ampADC) ; | |
601 | digit->SetTime(time); | |
602 | // printf("digit amplitude set at end: i %d, amp %f\n",i,digit->GetAmplitude()); | |
603 | }// digit exists | |
604 | }//Digit loop | |
6cc75819 | 605 | |
7e1d9a9b | 606 | } |
607 | else AliFatal("EMCALLoader is NULL!") ; | |
6cc75819 | 608 | |
814ad4bf | 609 | } |
61e0abb5 | 610 | |
6cc75819 | 611 | //_____________________________________________________________________ |
612 | void AliEMCALDigitizer::DigitizeEnergyTime(Float_t & energy, Float_t & time, const Int_t absId) | |
814ad4bf | 613 | { |
ab6a174f | 614 | // JLK 26-June-2008 |
e4dcc484 | 615 | // Returns digitized value of the energy in a cell absId |
ab6a174f | 616 | // using the calibration constants stored in the OCDB |
617 | // or default values if no CalibData object is found. | |
618 | // This effectively converts everything to match the dynamic range | |
619 | // of the real data we will collect | |
620 | // | |
53f1c378 | 621 | // Load Geometry |
622 | const AliEMCALGeometry * geom = AliEMCALGeometry::GetInstance(); | |
d62a891a | 623 | |
96d5ea0d | 624 | if (geom==0){ |
625 | AliFatal("Did not get geometry from EMCALLoader"); | |
6cc75819 | 626 | return; |
e4dcc484 | 627 | } |
5eb74a51 | 628 | |
6cc75819 | 629 | Int_t iSupMod = -1; |
630 | Int_t nModule = -1; | |
631 | Int_t nIphi = -1; | |
632 | Int_t nIeta = -1; | |
633 | Int_t iphi = -1; | |
634 | Int_t ieta = -1; | |
635 | Bool_t bCell = geom->GetCellIndex(absId, iSupMod, nModule, nIphi, nIeta) ; | |
636 | if(!bCell) | |
637 | Error("DigitizeEnergyTime","Wrong cell id number : absId %i ", absId) ; | |
638 | geom->GetCellPhiEtaIndexInSModule(iSupMod,nModule,nIphi, nIeta,iphi,ieta); | |
96d5ea0d | 639 | |
6cc75819 | 640 | if(fCalibData) { |
641 | fADCpedestalEC = fCalibData->GetADCpedestal (iSupMod,ieta,iphi); | |
642 | fADCchannelEC = fCalibData->GetADCchannel (iSupMod,ieta,iphi); | |
643 | fADCchannelECDecal = fCalibData->GetADCchannelDecal (iSupMod,ieta,iphi); | |
031c3928 | 644 | fTimeChannel = fCalibData->GetTimeChannel (iSupMod,ieta,iphi,0); // Assign bunch crossing number equal to 0 (has simulation different bunch crossings?) |
6cc75819 | 645 | fTimeChannelDecal = fCalibData->GetTimeChannelDecal(iSupMod,ieta,iphi); |
646 | } | |
647 | ||
648 | //Apply calibration to get ADC counts and partial decalibration as especified in OCDB | |
649 | energy = (energy + fADCpedestalEC)/fADCchannelEC/fADCchannelECDecal ; | |
650 | time += fTimeChannel-fTimeChannelDecal; | |
651 | ||
652 | if(energy > fNADCEC ) | |
653 | energy = fNADCEC ; | |
654 | } | |
829ba234 | 655 | |
63c22917 | 656 | //_____________________________________________________________________ |
52e22b66 | 657 | void AliEMCALDigitizer::Decalibrate(AliEMCALDigit *digit) |
63c22917 | 658 | { |
659 | // Load Geometry | |
52e22b66 | 660 | const AliEMCALGeometry *geom = AliEMCALGeometry::GetInstance(); |
63c22917 | 661 | |
52e22b66 | 662 | if (!geom) { |
63c22917 | 663 | AliFatal("Did not get geometry from EMCALLoader"); |
664 | return; | |
665 | } | |
666 | ||
52e22b66 | 667 | Int_t absId = digit->GetId(); |
63c22917 | 668 | Int_t iSupMod = -1; |
669 | Int_t nModule = -1; | |
670 | Int_t nIphi = -1; | |
671 | Int_t nIeta = -1; | |
672 | Int_t iphi = -1; | |
673 | Int_t ieta = -1; | |
52e22b66 | 674 | |
63c22917 | 675 | Bool_t bCell = geom->GetCellIndex(absId, iSupMod, nModule, nIphi, nIeta) ; |
52e22b66 | 676 | |
677 | if (!bCell) Error("DigitizeEnergyTime","Wrong cell id number : absId %i ", absId) ; | |
63c22917 | 678 | geom->GetCellPhiEtaIndexInSModule(iSupMod,nModule,nIphi, nIeta,iphi,ieta); |
679 | ||
52e22b66 | 680 | if (fCalibData) { |
63c22917 | 681 | fADCchannelEC = fCalibData->GetADCchannel(iSupMod,ieta,iphi); |
52e22b66 | 682 | float factor = 1./(fADCchannelEC/0.0162); |
683 | ||
684 | *digit = *digit * factor; | |
63c22917 | 685 | } |
63c22917 | 686 | } |
687 | ||
6cc75819 | 688 | //_____________________________________________________________________ |
689 | void AliEMCALDigitizer::CalibrateADCTime(Float_t & adc, Float_t & time, const Int_t absId) | |
690 | { | |
691 | // Returns the energy in a cell absId with a given adc value | |
692 | // using the calibration constants stored in the OCDB. Time also corrected from parameter in OCDB | |
693 | // Used in case of embedding, transform ADC counts from real event into energy | |
694 | // so that we can add the energy of the simulated sdigits which are in energy | |
695 | // units. | |
696 | // Same as in AliEMCALClusterizer::Calibrate() but here we do not reject channels being marked as hot | |
697 | // or with time out of window | |
698 | ||
699 | // Load Geometry | |
700 | const AliEMCALGeometry * geom = AliEMCALGeometry::GetInstance(); | |
701 | ||
702 | if (!geom){ | |
703 | AliFatal("Did not get geometry from EMCALLoader"); | |
704 | return; | |
705 | } | |
706 | ||
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 | Bool_t bCell = geom->GetCellIndex(absId, iSupMod, nModule, nIphi, nIeta) ; | |
714 | if(!bCell) | |
715 | Error("CalibrateADCTime","Wrong cell id number : absId %i ", absId) ; | |
716 | geom->GetCellPhiEtaIndexInSModule(iSupMod,nModule,nIphi, nIeta,iphi,ieta); | |
717 | ||
718 | if(fCalibData) { | |
719 | fADCpedestalEC = fCalibData->GetADCpedestal(iSupMod,ieta,iphi); | |
720 | fADCchannelEC = fCalibData->GetADCchannel (iSupMod,ieta,iphi); | |
031c3928 | 721 | fTimeChannel = fCalibData->GetTimeChannel(iSupMod,ieta,iphi,0);// Assign bunch crossing number equal to 0 (has simulation different bunch crossings?) |
6cc75819 | 722 | } |
723 | ||
724 | adc = adc * fADCchannelEC - fADCpedestalEC; | |
725 | time -= fTimeChannel; | |
96d5ea0d | 726 | |
d62a891a | 727 | |
61e0abb5 | 728 | } |
729 | ||
6cc75819 | 730 | |
61e0abb5 | 731 | //____________________________________________________________________________ |
f21fc003 | 732 | void AliEMCALDigitizer::Digitize(Option_t *option) |
05a92d59 | 733 | { |
45fa49ca | 734 | // Steering method to process digitization for events |
735 | // in the range from fFirstEvent to fLastEvent. | |
736 | // This range is optionally set by SetEventRange(). | |
737 | // if fLastEvent=-1, then process events until the end. | |
738 | // by default fLastEvent = fFirstEvent (process only one event) | |
05a92d59 | 739 | |
88cb7938 | 740 | if (!fInit) { // to prevent overwrite existing file |
f21fc003 | 741 | Error( "Digitize", "Give a version name different from %s", fEventFolderName.Data() ) ; |
88cb7938 | 742 | return ; |
743 | } | |
744 | ||
814ad4bf | 745 | if (strstr(option,"print")) { |
b42d4197 | 746 | |
88cb7938 | 747 | Print(); |
814ad4bf | 748 | return ; |
749 | } | |
750 | ||
61e0abb5 | 751 | if(strstr(option,"tim")) |
752 | gBenchmark->Start("EMCALDigitizer"); | |
5dee926e | 753 | |
33c3c91a | 754 | AliRunLoader *rl = AliRunLoader::Instance(); |
5dee926e | 755 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL")); |
96d5ea0d | 756 | Int_t nEvents = 0; |
757 | if(!emcalLoader){ | |
758 | AliFatal("Did not get the Loader"); | |
30bc5594 | 759 | } |
96d5ea0d | 760 | else{ |
64942713 | 761 | |
96d5ea0d | 762 | if (fLastEvent == -1) { |
763 | fLastEvent = rl->GetNumberOfEvents() - 1 ; | |
764 | } | |
f21fc003 | 765 | else if (fDigInput) |
96d5ea0d | 766 | fLastEvent = fFirstEvent ; // what is this ?? |
767 | ||
768 | nEvents = fLastEvent - fFirstEvent + 1; | |
769 | Int_t ievent = -1; | |
88cb7938 | 770 | |
96d5ea0d | 771 | TClonesArray* digitsTMP = new TClonesArray("AliEMCALDigit", 32*96); |
772 | TClonesArray* digitsTRG = new TClonesArray("AliEMCALRawDigit", 32*96); | |
88cb7938 | 773 | |
96d5ea0d | 774 | rl->LoadSDigits("EMCAL"); |
775 | for (ievent = fFirstEvent; ievent <= fLastEvent; ievent++) { | |
776 | ||
777 | rl->GetEvent(ievent); | |
778 | ||
779 | Digitize(ievent) ; //Add prepared SDigits to digits and add the noise | |
780 | ||
781 | WriteDigits() ; | |
782 | ||
783 | //Trigger Digits | |
784 | //------------------------------------- | |
785 | ||
88cb7938 | 786 | |
96d5ea0d | 787 | Digits2FastOR(digitsTMP, digitsTRG); |
788 | ||
789 | WriteDigits(digitsTRG); | |
790 | ||
791 | (emcalLoader->TreeD())->Fill(); | |
792 | ||
793 | emcalLoader->WriteDigits( "OVERWRITE"); | |
96d5ea0d | 794 | |
795 | Unload(); | |
796 | ||
797 | digitsTRG ->Delete(); | |
798 | digitsTMP ->Delete(); | |
799 | ||
800 | //------------------------------------- | |
801 | ||
802 | if(strstr(option,"deb")) | |
803 | PrintDigits(option); | |
804 | if(strstr(option,"table")) gObjectTable->Print(); | |
805 | ||
806 | //increment the total number of Digits per run | |
807 | fDigitsInRun += emcalLoader->Digits()->GetEntriesFast() ; | |
808 | }//loop | |
f21fc003 | 809 | |
96d5ea0d | 810 | }//loader exists |
64942713 | 811 | |
61e0abb5 | 812 | if(strstr(option,"tim")){ |
813 | gBenchmark->Stop("EMCALDigitizer"); | |
0bd264d5 | 814 | Float_t cputime = gBenchmark->GetCpuTime("EMCALDigitizer"); |
815 | Float_t avcputime = cputime; | |
816 | if(nEvents==0) avcputime = 0 ; | |
817 | AliInfo(Form("Digitize: took %f seconds for Digitizing %f seconds per event", cputime, avcputime)) ; | |
88cb7938 | 818 | } |
61e0abb5 | 819 | } |
820 | ||
a2f8e711 | 821 | //__________________________________________________________________ |
822 | Float_t AliEMCALDigitizer::GetTimeResolution(Float_t energy) const | |
823 | { | |
824 | // From F. Blanco | |
825 | Float_t res = -1; | |
826 | if (energy > 0) { | |
827 | res = TMath::Sqrt(fTimeResolutionPar0 + | |
828 | fTimeResolutionPar1/(energy*energy) ); | |
829 | } | |
b2a891e0 | 830 | // parametrization above is for ns. Convert to seconds: |
831 | return res*1e-9; | |
a2f8e711 | 832 | } |
833 | ||
916f1e76 | 834 | //____________________________________________________________________________ |
835 | void AliEMCALDigitizer::Digits2FastOR(TClonesArray* digitsTMP, TClonesArray* digitsTRG) | |
836 | { | |
de39a0ff | 837 | // FEE digits afterburner to produce TRG digits |
838 | // we are only interested in the FEE digit deposited energy | |
839 | // to be converted later into a voltage value | |
840 | ||
841 | // push the FEE digit to its associated FastOR (numbered from 0:95) | |
842 | // TRU is in charge of summing module digits | |
843 | ||
844 | AliRunLoader *runLoader = AliRunLoader::Instance(); | |
845 | ||
846 | AliRun* run = runLoader->GetAliRun(); | |
847 | ||
848 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(runLoader->GetDetectorLoader("EMCAL")); | |
849 | if(!emcalLoader){ | |
850 | AliFatal("Did not get the Loader"); | |
96d5ea0d | 851 | } |
852 | else { | |
7e1d9a9b | 853 | AliEMCAL* emcal = dynamic_cast<AliEMCAL*>(run->GetDetector("EMCAL")); |
854 | if(emcal){ | |
855 | AliEMCALGeometry* geom = emcal->GetGeometry(); | |
856 | ||
857 | // build FOR from simulated digits | |
858 | // and xfer to the corresponding TRU input (mapping) | |
7d525d9d | 859 | |
52e22b66 | 860 | TClonesArray* sdigits = emcalLoader->SDigits(); |
861 | ||
862 | TClonesArray *digits = (TClonesArray*)sdigits->Clone(); | |
863 | ||
63c22917 | 864 | AliDebug(999,Form("=== %d SDigits to trigger digits ===",digits->GetEntriesFast())); |
865 | ||
7e1d9a9b | 866 | TIter NextDigit(digits); |
867 | while (AliEMCALDigit* digit = (AliEMCALDigit*)NextDigit()) | |
96d5ea0d | 868 | { |
52e22b66 | 869 | Decalibrate(digit); |
870 | ||
7e1d9a9b | 871 | Int_t id = digit->GetId(); |
7d525d9d | 872 | |
7e1d9a9b | 873 | Int_t trgid; |
874 | if (geom && geom->GetFastORIndexFromCellIndex(id , trgid)) | |
875 | { | |
876 | AliDebug(1,Form("trigger digit id: %d from cell id: %d\n",trgid,id)); | |
877 | ||
878 | AliEMCALDigit* d = static_cast<AliEMCALDigit*>(digitsTMP->At(trgid)); | |
879 | ||
880 | if (!d) | |
881 | { | |
882 | new((*digitsTMP)[trgid]) AliEMCALDigit(*digit); | |
883 | d = (AliEMCALDigit*)digitsTMP->At(trgid); | |
884 | d->SetId(trgid); | |
885 | } | |
886 | else | |
887 | { | |
888 | *d = *d + *digit; | |
889 | } | |
890 | } | |
96d5ea0d | 891 | } |
7e1d9a9b | 892 | |
893 | if (AliDebugLevel()) printf("Number of TRG digits: %d\n",digitsTMP->GetEntriesFast()); | |
63c22917 | 894 | |
7e1d9a9b | 895 | Int_t nSamples = 32; |
896 | Int_t *timeSamples = new Int_t[nSamples]; | |
897 | ||
898 | NextDigit = TIter(digitsTMP); | |
899 | while (AliEMCALDigit* digit = (AliEMCALDigit*)NextDigit()) | |
96d5ea0d | 900 | { |
7e1d9a9b | 901 | if (digit) |
902 | { | |
903 | Int_t id = digit->GetId(); | |
804b828a | 904 | Float_t time = 50.e-9; |
7e1d9a9b | 905 | |
906 | Double_t depositedEnergy = 0.; | |
907 | for (Int_t j = 1; j <= digit->GetNprimary(); j++) depositedEnergy += digit->GetDEPrimary(j); | |
7d525d9d | 908 | |
7e1d9a9b | 909 | if (AliDebugLevel()) printf("Deposited Energy: %f\n", depositedEnergy); |
910 | ||
911 | // FIXME: Check digit time! | |
912 | if (depositedEnergy) | |
7d525d9d | 913 | { |
52e22b66 | 914 | depositedEnergy += gRandom->Gaus(0., .08); |
63c22917 | 915 | |
7e1d9a9b | 916 | DigitalFastOR(time, depositedEnergy, timeSamples, nSamples); |
917 | ||
918 | for (Int_t j=0;j<nSamples;j++) | |
919 | { | |
920 | timeSamples[j] = ((j << 12) & 0xFF000) | (timeSamples[j] & 0xFFF); | |
921 | } | |
922 | ||
923 | new((*digitsTRG)[digitsTRG->GetEntriesFast()]) AliEMCALRawDigit(id, timeSamples, nSamples); | |
63c22917 | 924 | |
925 | if (AliDebugLevel()) ((AliEMCALRawDigit*)digitsTRG->At(digitsTRG->GetEntriesFast() - 1))->Print(""); | |
7d525d9d | 926 | } |
7e1d9a9b | 927 | } |
96d5ea0d | 928 | } |
7e1d9a9b | 929 | |
930 | delete [] timeSamples; | |
52e22b66 | 931 | |
932 | if (digits && digits->GetEntriesFast()) digits->Delete(); | |
7e1d9a9b | 933 | }// AliEMCAL exists |
934 | else AliFatal("Could not get AliEMCAL"); | |
96d5ea0d | 935 | }// loader exists |
936 | ||
916f1e76 | 937 | } |
938 | ||
939 | //____________________________________________________________________________ | |
940 | void AliEMCALDigitizer::DigitalFastOR( Double_t time, Double_t dE, Int_t timeSamples[], Int_t nSamples ) | |
941 | { | |
942 | // parameters: | |
943 | // id: 0..95 | |
944 | const Int_t reso = 11; // 11-bit resolution ADC | |
945 | const Double_t vFSR = 1; // Full scale input voltage range | |
63c22917 | 946 | // const Double_t dNe = 125; // signal of the APD per MeV of energy deposit in a tower: 125 photo-e-/MeV @ M=30 |
947 | const Double_t dNe = 125/1.3; // F-ALTRO max V. FEE: factor 4 | |
916f1e76 | 948 | const Double_t vA = .136e-6; // CSP output range: 0.136uV/e- |
63c22917 | 949 | const Double_t rise = 50e-9; // rise time (10-90%) of the FastOR signal before shaping |
916f1e76 | 950 | |
951 | const Double_t kTimeBinWidth = 25E-9; // sampling frequency (40MHz) | |
952 | ||
a2f8e711 | 953 | Double_t vV = 1000. * dE * dNe * vA; // GeV 2 MeV |
63c22917 | 954 | |
916f1e76 | 955 | TF1 signalF("signal", AnalogFastORFunction, 0, nSamples * kTimeBinWidth, 3); |
956 | signalF.SetParameter( 0, vV ); | |
957 | signalF.SetParameter( 1, time ); // FIXME: when does the signal arrive? Might account for cable lengths | |
958 | signalF.SetParameter( 2, rise ); | |
959 | ||
960 | for (Int_t iTime=0; iTime<nSamples; iTime++) | |
961 | { | |
962 | // FIXME: add noise (probably not simply Gaussian) according to DA measurements | |
963 | // probably plan an access to OCDB | |
964 | ||
965 | timeSamples[iTime] = int((TMath::Power(2, reso) / vFSR) * signalF.Eval(iTime * kTimeBinWidth) + 0.5); | |
966 | } | |
967 | } | |
968 | ||
05a92d59 | 969 | //____________________________________________________________________________ |
970 | Bool_t AliEMCALDigitizer::Init() | |
971 | { | |
972 | // Makes all memory allocations | |
88cb7938 | 973 | fInit = kTRUE ; |
33c3c91a | 974 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL")); |
61d80ce0 | 975 | |
5dee926e | 976 | if ( emcalLoader == 0 ) { |
977 | Fatal("Init", "Could not obtain the AliEMCALLoader"); | |
05a92d59 | 978 | return kFALSE; |
979 | } | |
61d80ce0 | 980 | |
45fa49ca | 981 | fFirstEvent = 0 ; |
982 | fLastEvent = fFirstEvent ; | |
983 | ||
f21fc003 | 984 | if(fDigInput) |
985 | fInput = fDigInput->GetNinputs() ; | |
88cb7938 | 986 | else |
987 | fInput = 1 ; | |
988 | ||
989 | fInputFileNames = new TString[fInput] ; | |
990 | fEventNames = new TString[fInput] ; | |
991 | fInputFileNames[0] = GetTitle() ; | |
992 | fEventNames[0] = fEventFolderName.Data() ; | |
993 | Int_t index ; | |
994 | for (index = 1 ; index < fInput ; index++) { | |
f21fc003 | 995 | fInputFileNames[index] = dynamic_cast<AliStream*>(fDigInput->GetInputStream(index))->GetFileName(0); |
996 | TString tempo = fDigInput->GetInputFolderName(index) ; | |
997 | fEventNames[index] = tempo.Remove(tempo.Length()-1) ; // strip of the stream number added bt fDigInput | |
05a92d59 | 998 | } |
f21fc003 | 999 | |
53f1c378 | 1000 | //Calibration instance |
1001 | fCalibData = emcalLoader->CalibData(); | |
88cb7938 | 1002 | return fInit ; |
05a92d59 | 1003 | } |
1004 | ||
1005 | //____________________________________________________________________________ | |
1006 | void AliEMCALDigitizer::InitParameters() | |
14ce0a6e | 1007 | { |
29b5d492 | 1008 | // Parameter initialization for digitizer |
6569f329 | 1009 | |
1010 | // Get the parameters from the OCDB via the loader | |
1011 | AliRunLoader *rl = AliRunLoader::Instance(); | |
1012 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL")); | |
1013 | AliEMCALSimParam * simParam = 0x0; | |
1014 | if(emcalLoader) simParam = emcalLoader->SimulationParameters(); | |
1015 | ||
1016 | if(!simParam){ | |
61d80ce0 | 1017 | simParam = AliEMCALSimParam::GetInstance(); |
1018 | AliWarning("Simulation Parameters not available in OCDB?"); | |
6569f329 | 1019 | } |
61d80ce0 | 1020 | |
5fb45456 | 1021 | fMeanPhotonElectron = simParam->GetMeanPhotonElectron() ; // 4400; // electrons per GeV |
1022 | fGainFluctuations = simParam->GetGainFluctuations() ; // 15.0; | |
1023 | ||
6569f329 | 1024 | fPinNoise = simParam->GetPinNoise();//0.012; // pin noise in GeV from analysis test beam data |
33a52e55 | 1025 | if (fPinNoise < 0.0001 ) |
88cb7938 | 1026 | Warning("InitParameters", "No noise added\n") ; |
6cc75819 | 1027 | fTimeNoise = simParam->GetTimeNoise(); // 1.28E-5 s |
6569f329 | 1028 | fDigitThreshold = simParam->GetDigitThreshold(); //fPinNoise * 3; // 3 * sigma |
a2f8e711 | 1029 | fTimeResolutionPar0 = simParam->GetTimeResolutionPar0(); |
1030 | fTimeResolutionPar1 = simParam->GetTimeResolutionPar1(); | |
f0a6dc6f | 1031 | fTimeDelay = simParam->GetTimeDelay(); //600e-9 ; // 600 ns |
61d80ce0 | 1032 | |
97075cd8 | 1033 | // These defaults are normally not used. |
1034 | // Values are read from calibration database instead | |
33a52e55 | 1035 | fADCchannelEC = 0.0153; // Update 24 Apr 2007: 250./16/1024 - width of one ADC channel in GeV |
6cc75819 | 1036 | fADCpedestalEC = 0.0 ; // GeV |
1037 | fADCchannelECDecal = 1.0; // No decalibration by default | |
1038 | fTimeChannel = 0.0; // No time calibration by default | |
1039 | fTimeChannelDecal = 0.0; // No time decalibration by default | |
33a52e55 | 1040 | |
6cc75819 | 1041 | fNADCEC = simParam->GetNADCEC();//(Int_t) TMath::Power(2,16) ; // number of channels in Tower ADC - 65536 |
61d80ce0 | 1042 | |
5fb45456 | 1043 | 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", |
1044 | fMeanPhotonElectron, fGainFluctuations, fPinNoise,fTimeNoise, fDigitThreshold,fTimeResolutionPar0,fTimeResolutionPar1,fNADCEC)); | |
1045 | ||
05a92d59 | 1046 | } |
61e0abb5 | 1047 | |
fe93d365 | 1048 | //__________________________________________________________________ |
1963b290 | 1049 | void AliEMCALDigitizer::Print1(Option_t * option) |
6cc75819 | 1050 | { // 19-nov-04 - just for convenience |
1963b290 | 1051 | Print(); |
1052 | PrintDigits(option); | |
1053 | } | |
1054 | ||
61e0abb5 | 1055 | //__________________________________________________________________ |
6cc75819 | 1056 | void AliEMCALDigitizer::Print (Option_t * ) const |
88cb7938 | 1057 | { |
1058 | // Print Digitizer's parameters | |
fdebddeb | 1059 | printf("Print: \n------------------- %s -------------", GetName() ) ; |
88cb7938 | 1060 | if( strcmp(fEventFolderName.Data(), "") != 0 ){ |
1061 | printf(" Writing Digits to branch with title %s\n", fEventFolderName.Data()) ; | |
1062 | ||
1063 | Int_t nStreams ; | |
f21fc003 | 1064 | if (fDigInput) |
88cb7938 | 1065 | nStreams = GetNInputStreams() ; |
1066 | else | |
1067 | nStreams = fInput ; | |
61d80ce0 | 1068 | |
53e430a3 | 1069 | AliRunLoader *rl=0; |
88cb7938 | 1070 | |
1071 | Int_t index = 0 ; | |
1072 | for (index = 0 ; index < nStreams ; index++) { | |
1073 | TString tempo(fEventNames[index]) ; | |
1074 | tempo += index ; | |
5dee926e | 1075 | if ((rl = AliRunLoader::GetRunLoader(tempo)) == 0) |
96d5ea0d | 1076 | rl = AliRunLoader::Open(fInputFileNames[index], tempo) ; |
5dee926e | 1077 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL")); |
96d5ea0d | 1078 | if(emcalLoader){ |
1079 | TString fileName( emcalLoader->GetSDigitsFileName() ) ; | |
1080 | if ( fEventNames[index] != AliConfig::GetDefaultEventFolderName()) // only if not the default folder name | |
1081 | fileName = fileName.ReplaceAll(".root", "") + "_" + fEventNames[index] + ".root" ; | |
1082 | printf ("Adding SDigits from %s %s\n", fInputFileNames[index].Data(), fileName.Data()) ; | |
1083 | }//loader | |
88cb7938 | 1084 | } |
61d80ce0 | 1085 | |
33c3c91a | 1086 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL")); |
61d80ce0 | 1087 | |
96d5ea0d | 1088 | if(emcalLoader) printf("\nWriting digits to %s", emcalLoader->GetDigitsFileName().Data()) ; |
1089 | else printf("\nNULL LOADER"); | |
61d80ce0 | 1090 | |
88cb7938 | 1091 | printf("\nWith following parameters:\n") ; |
6cc75819 | 1092 | printf(" Electronics noise in EMC, APD (fPinNoise) = %f, Time = %f \n", fPinNoise, fTimeNoise) ; |
4354827d | 1093 | printf(" Threshold in Tower (fDigitThreshold) = %d\n", fDigitThreshold) ; |
88cb7938 | 1094 | printf("---------------------------------------------------\n") ; |
ea5f3389 | 1095 | } |
1096 | else | |
fdebddeb | 1097 | printf("Print: AliEMCALDigitizer not initialized") ; |
61e0abb5 | 1098 | } |
814ad4bf | 1099 | |
e41b8233 | 1100 | //__________________________________________________________________ |
14ce0a6e | 1101 | void AliEMCALDigitizer::PrintDigits(Option_t * option) |
1102 | { | |
1103 | //utility method for printing digit information | |
61d80ce0 | 1104 | |
33c3c91a | 1105 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL")); |
96d5ea0d | 1106 | if(emcalLoader){ |
1107 | TClonesArray * digits = emcalLoader->Digits() ; | |
1108 | TClonesArray * sdigits = emcalLoader->SDigits() ; | |
1109 | ||
1110 | printf("\n #Digits: %d : sdigits %d ", digits->GetEntriesFast(), sdigits->GetEntriesFast()) ; | |
1111 | printf("\n event %d", emcalLoader->GetRunLoader()->GetEventNumber()); | |
1112 | ||
1113 | if(strstr(option,"all")){ | |
1114 | //loop over digits | |
1115 | AliEMCALDigit * digit; | |
1116 | printf("\nEMC digits (with primaries):\n") ; | |
1117 | printf("\n Id Amplitude Time Index Nprim: Primaries list \n") ; | |
1118 | Int_t index ; | |
1119 | for (index = 0 ; index < digits->GetEntries() ; index++) { | |
1120 | digit = dynamic_cast<AliEMCALDigit *>(digits->At(index)) ; | |
1121 | if(digit){ | |
1122 | printf("\n%6d %8f %6.5e %4d %2d : ", | |
1123 | digit->GetId(), digit->GetAmplitude(), digit->GetTime(), digit->GetIndexInList(), digit->GetNprimary()) ; | |
1124 | Int_t iprimary; | |
1125 | for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) { | |
1126 | printf("%d ",digit->GetPrimary(iprimary+1) ) ; | |
1127 | } | |
1128 | }// digit exists | |
1129 | }// loop | |
1130 | } | |
1131 | printf("\n"); | |
1132 | }// loader exists | |
1133 | else printf("NULL LOADER, cannot print\n"); | |
61e0abb5 | 1134 | } |
05a92d59 | 1135 | |
1136 | //__________________________________________________________________ | |
1137 | Float_t AliEMCALDigitizer::TimeOfNoise(void) | |
04f0bda3 | 1138 | { |
1139 | // Calculates the time signal generated by noise | |
6cc75819 | 1140 | //printf("Time noise %e\n",fTimeNoise); |
1141 | return gRandom->Rndm() * fTimeNoise; | |
05a92d59 | 1142 | } |
1143 | ||
88cb7938 | 1144 | //__________________________________________________________________ |
1145 | void AliEMCALDigitizer::Unload() | |
1146 | { | |
fdebddeb | 1147 | // Unloads the SDigits and Digits |
5dee926e | 1148 | AliRunLoader *rl=0; |
1149 | ||
88cb7938 | 1150 | Int_t i ; |
1151 | for(i = 1 ; i < fInput ; i++){ | |
1152 | TString tempo(fEventNames[i]) ; | |
5dee926e | 1153 | tempo += i; |
1154 | if ((rl = AliRunLoader::GetRunLoader(tempo))) | |
1155 | rl->GetDetectorLoader("EMCAL")->UnloadSDigits() ; | |
88cb7938 | 1156 | } |
33c3c91a | 1157 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL")); |
96d5ea0d | 1158 | if(emcalLoader)emcalLoader->UnloadDigits() ; |
1159 | else AliFatal("Did not get the loader"); | |
88cb7938 | 1160 | } |
1161 | ||
814ad4bf | 1162 | //_________________________________________________________________________________________ |
9e5d2067 | 1163 | void AliEMCALDigitizer::WriteDigits() |
a2f8e711 | 1164 | { // Makes TreeD in the output file. |
814ad4bf | 1165 | // Check if branch already exists: |
1166 | // if yes, exit without writing: ROOT TTree does not support overwriting/updating of | |
1167 | // already existing branches. | |
1168 | // else creates branch with Digits, named "EMCAL", title "...", | |
1169 | // and branch "AliEMCALDigitizer", with the same title to keep all the parameters | |
1170 | // and names of files, from which digits are made. | |
96d5ea0d | 1171 | |
33c3c91a | 1172 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL")); |
96d5ea0d | 1173 | |
1174 | if(emcalLoader){ | |
1175 | const TClonesArray * digits = emcalLoader->Digits() ; | |
1176 | TTree * treeD = emcalLoader->TreeD(); | |
1177 | if ( !treeD ) { | |
1178 | emcalLoader->MakeDigitsContainer(); | |
1179 | treeD = emcalLoader->TreeD(); | |
1180 | } | |
1181 | ||
1182 | // -- create Digits branch | |
1183 | Int_t bufferSize = 32000 ; | |
1184 | TBranch * digitsBranch = 0; | |
1185 | if ((digitsBranch = treeD->GetBranch("EMCAL"))) { | |
1186 | digitsBranch->SetAddress(&digits); | |
1187 | AliWarning("Digits Branch already exists. Not all digits will be visible"); | |
1188 | } | |
1189 | else | |
1190 | treeD->Branch("EMCAL","TClonesArray",&digits,bufferSize); | |
1191 | //digitsBranch->SetTitle(fEventFolderName); | |
1192 | ||
1193 | // treeD->Fill() ; | |
1194 | /* | |
1195 | emcalLoader->WriteDigits("OVERWRITE"); | |
1196 | emcalLoader->WriteDigitizer("OVERWRITE"); | |
1197 | ||
1198 | Unload() ; | |
1199 | */ | |
1200 | ||
1201 | }// loader exists | |
1202 | else AliFatal("Loader not available"); | |
916f1e76 | 1203 | } |
88cb7938 | 1204 | |
916f1e76 | 1205 | //__________________________________________________________________ |
1206 | void AliEMCALDigitizer::WriteDigits(TClonesArray* digits, const char* branchName) | |
a2f8e711 | 1207 | { // overloaded method |
61d80ce0 | 1208 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL")); |
1209 | if(emcalLoader){ | |
96d5ea0d | 1210 | |
1211 | TTree* treeD = emcalLoader->TreeD(); | |
1212 | if (!treeD) | |
61d80ce0 | 1213 | { |
1214 | emcalLoader->MakeDigitsContainer(); | |
1215 | treeD = emcalLoader->TreeD(); | |
1216 | } | |
96d5ea0d | 1217 | |
1218 | // -- create Digits branch | |
1219 | Int_t bufferSize = 32000; | |
1220 | ||
1221 | if (TBranch* triggerBranch = treeD->GetBranch(branchName)) | |
61d80ce0 | 1222 | { |
1223 | triggerBranch->SetAddress(&digits); | |
1224 | } | |
96d5ea0d | 1225 | else |
61d80ce0 | 1226 | { |
1227 | treeD->Branch(branchName,"TClonesArray",&digits,bufferSize); | |
1228 | } | |
96d5ea0d | 1229 | |
1230 | // treeD->Fill(); | |
1231 | }// loader exists | |
1232 | else AliFatal("Loader not available"); | |
814ad4bf | 1233 | } |
61e0abb5 | 1234 |