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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" |
ea5f3389 | 57 | #include "AliRunDigitizer.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), | |
18a21c7c | 122 | fPinNoise(0), |
6cc75819 | 123 | fTimeNoise(0), |
f0a6dc6f | 124 | fTimeDelay(0), |
a2f8e711 | 125 | fTimeResolutionPar0(0), |
126 | fTimeResolutionPar1(0), | |
18a21c7c | 127 | fADCchannelEC(0), |
128 | fADCpedestalEC(0), | |
6cc75819 | 129 | fADCchannelECDecal(0), |
130 | fTimeChannel(0), | |
131 | fTimeChannelDecal(0), | |
18a21c7c | 132 | fNADCEC(0), |
133 | fEventFolderName(""), | |
134 | fFirstEvent(0), | |
135 | fLastEvent(0), | |
7ea6391b | 136 | fCalibData(0x0) |
61e0abb5 | 137 | { |
138 | // ctor | |
88cb7938 | 139 | InitParameters() ; |
ab6a174f | 140 | fManager = 0 ; // We work in the standalone mode |
839828a6 | 141 | } |
61e0abb5 | 142 | |
839828a6 | 143 | //____________________________________________________________________________ |
18a21c7c | 144 | AliEMCALDigitizer::AliEMCALDigitizer(TString alirunFileName, TString eventFolderName) |
145 | : AliDigitizer("EMCAL"+AliConfig::Instance()->GetDigitizerTaskName(), alirunFileName), | |
146 | fDefaultInit(kFALSE), | |
147 | fDigitsInRun(0), | |
148 | fInit(0), | |
149 | fInput(0), | |
150 | fInputFileNames(0), | |
151 | fEventNames(0), | |
152 | fDigitThreshold(0), | |
153 | fMeanPhotonElectron(0), | |
18a21c7c | 154 | fPinNoise(0), |
6cc75819 | 155 | fTimeNoise(0), |
96d5ea0d | 156 | fTimeDelay(0), |
a2f8e711 | 157 | fTimeResolutionPar0(0), |
158 | fTimeResolutionPar1(0), | |
18a21c7c | 159 | fADCchannelEC(0), |
160 | fADCpedestalEC(0), | |
6cc75819 | 161 | fADCchannelECDecal(0), |
162 | fTimeChannel(0), | |
163 | fTimeChannelDecal(0), | |
18a21c7c | 164 | fNADCEC(0), |
165 | fEventFolderName(eventFolderName), | |
166 | fFirstEvent(0), | |
167 | fLastEvent(0), | |
7ea6391b | 168 | fCalibData(0x0) |
839828a6 | 169 | { |
05a92d59 | 170 | // ctor |
a9485c37 | 171 | InitParameters() ; |
88cb7938 | 172 | Init() ; |
ab6a174f | 173 | fManager = 0 ; // We work in the standalone mode |
61e0abb5 | 174 | } |
839828a6 | 175 | |
61e0abb5 | 176 | //____________________________________________________________________________ |
18a21c7c | 177 | AliEMCALDigitizer::AliEMCALDigitizer(const AliEMCALDigitizer & d) |
178 | : AliDigitizer(d.GetName(),d.GetTitle()), | |
179 | fDefaultInit(d.fDefaultInit), | |
180 | fDigitsInRun(d.fDigitsInRun), | |
181 | fInit(d.fInit), | |
182 | fInput(d.fInput), | |
183 | fInputFileNames(d.fInputFileNames), | |
184 | fEventNames(d.fEventNames), | |
185 | fDigitThreshold(d.fDigitThreshold), | |
186 | fMeanPhotonElectron(d.fMeanPhotonElectron), | |
18a21c7c | 187 | fPinNoise(d.fPinNoise), |
6cc75819 | 188 | fTimeNoise(d.fTimeNoise), |
f0a6dc6f | 189 | fTimeDelay(d.fTimeDelay), |
a2f8e711 | 190 | fTimeResolutionPar0(d.fTimeResolutionPar0), |
191 | fTimeResolutionPar1(d.fTimeResolutionPar1), | |
18a21c7c | 192 | fADCchannelEC(d.fADCchannelEC), |
193 | fADCpedestalEC(d.fADCpedestalEC), | |
6cc75819 | 194 | fADCchannelECDecal(d.fADCchannelECDecal), |
195 | fTimeChannel(d.fTimeChannel), fTimeChannelDecal(d.fTimeChannelDecal), | |
18a21c7c | 196 | fNADCEC(d.fNADCEC), |
197 | fEventFolderName(d.fEventFolderName), | |
198 | fFirstEvent(d.fFirstEvent), | |
199 | fLastEvent(d.fLastEvent), | |
7ea6391b | 200 | fCalibData(d.fCalibData) |
88cb7938 | 201 | { |
202 | // copyy ctor | |
96d5ea0d | 203 | } |
88cb7938 | 204 | |
205 | //____________________________________________________________________________ | |
18a21c7c | 206 | AliEMCALDigitizer::AliEMCALDigitizer(AliRunDigitizer * rd) |
207 | : AliDigitizer(rd,"EMCAL"+AliConfig::Instance()->GetDigitizerTaskName()), | |
208 | fDefaultInit(kFALSE), | |
209 | fDigitsInRun(0), | |
210 | fInit(0), | |
211 | fInput(0), | |
212 | fInputFileNames(0), | |
213 | fEventNames(0), | |
da509d54 | 214 | fDigitThreshold(0), |
18a21c7c | 215 | fMeanPhotonElectron(0), |
da509d54 | 216 | fPinNoise(0.), |
6cc75819 | 217 | fTimeNoise(0.), |
f0a6dc6f | 218 | fTimeDelay(0.), |
a2f8e711 | 219 | fTimeResolutionPar0(0.), |
220 | fTimeResolutionPar1(0.), | |
18a21c7c | 221 | fADCchannelEC(0), |
222 | fADCpedestalEC(0), | |
6cc75819 | 223 | fADCchannelECDecal(0), |
224 | fTimeChannel(0), | |
225 | fTimeChannelDecal(0), | |
18a21c7c | 226 | fNADCEC(0), |
227 | fEventFolderName(0), | |
228 | fFirstEvent(0), | |
229 | fLastEvent(0), | |
7ea6391b | 230 | fCalibData(0x0) |
61e0abb5 | 231 | { |
45fa49ca | 232 | // ctor Init() is called by RunDigitizer |
88cb7938 | 233 | fManager = rd ; |
e0e18b6d | 234 | fEventFolderName = fManager->GetInputFolderName(0) ; |
88cb7938 | 235 | SetTitle(dynamic_cast<AliStream*>(fManager->GetInputStream(0))->GetFileName(0)); |
05a92d59 | 236 | InitParameters() ; |
839828a6 | 237 | } |
814ad4bf | 238 | |
839828a6 | 239 | //____________________________________________________________________________ |
240 | AliEMCALDigitizer::~AliEMCALDigitizer() | |
241 | { | |
14ce0a6e | 242 | //dtor |
33c3c91a | 243 | if (AliRunLoader::Instance()) { |
5dee926e | 244 | AliLoader *emcalLoader=0; |
33c3c91a | 245 | if ((emcalLoader = AliRunLoader::Instance()->GetDetectorLoader("EMCAL"))) |
5dee926e | 246 | emcalLoader->CleanDigitizer(); |
247 | } | |
248 | else | |
249 | AliDebug(1," no runloader present"); | |
96d5ea0d | 250 | |
f5f384f4 | 251 | delete [] fInputFileNames ; |
252 | delete [] fEventNames ; | |
96d5ea0d | 253 | |
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 ; |
277 | // fManager is data member from AliDigitizer | |
278 | if (fManager) | |
279 | readEvent = dynamic_cast<AliStream*>(fManager->GetInputStream(0))->GetCurrentEventNumber() ; | |
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 | |
6cc75819 | 304 | // get first the sdigitizer from the tasks list (must have same name as the digitizer) |
305 | if ( !emcalLoader->SDigitizer() ) | |
306 | emcalLoader->LoadSDigitizer(); | |
307 | AliEMCALSDigitizer * sDigitizer = dynamic_cast<AliEMCALSDigitizer*>(emcalLoader->SDigitizer()); | |
308 | ||
309 | if (!sDigitizer ) | |
310 | { | |
311 | Fatal("Digitize", "SDigitizer with name %s %s not found", fEventFolderName.Data(), GetTitle() ) ; | |
312 | } | |
313 | else | |
314 | { | |
96d5ea0d | 315 | |
6cc75819 | 316 | //take all the inputs to add together and load the SDigits |
317 | TObjArray * sdigArray = new TObjArray(fInput) ; | |
318 | sdigArray->AddAt(emcalLoader->SDigits(), 0) ; | |
319 | Int_t i ; | |
320 | Int_t embed = kFALSE; | |
321 | for(i = 1 ; i < fInput ; i++){ | |
322 | TString tempo(fEventNames[i]) ; | |
323 | tempo += i ; | |
324 | ||
325 | AliRunLoader * rl2 = AliRunLoader::GetRunLoader(tempo) ; | |
326 | ||
327 | if (rl2==0) | |
328 | rl2 = AliRunLoader::Open(fInputFileNames[i], tempo) ; | |
329 | ||
330 | if (fManager) | |
331 | readEvent = dynamic_cast<AliStream*>(fManager->GetInputStream(i))->GetCurrentEventNumber() ; | |
332 | Info("Digitize", "Adding event %d from input stream %d %s %s", readEvent, i, fInputFileNames[i].Data(), tempo.Data()) ; | |
333 | rl2->LoadSDigits(); | |
334 | // rl2->LoadDigits(); | |
335 | rl2->GetEvent(readEvent); | |
336 | if(rl2->GetDetectorLoader("EMCAL")) | |
337 | { | |
338 | AliEMCALLoader *emcalLoader2 = dynamic_cast<AliEMCALLoader*>(rl2->GetDetectorLoader("EMCAL")); | |
339 | ||
340 | if(emcalLoader2) { | |
341 | //Merge 2 simulated sdigits | |
342 | if(emcalLoader2->SDigits()){ | |
343 | TClonesArray* sdigits2 = emcalLoader2->SDigits(); | |
344 | sdigArray->AddAt(sdigits2, i) ; | |
1c67f0f5 | 345 | // Check if first sdigit is of embedded type, if so, handle the sdigits differently: |
6cc75819 | 346 | // do not smear energy of embedded, do not add noise to any sdigits |
347 | if(sdigits2->GetEntriesFast()>0){ | |
348 | //printf("Merged digit type: %d\n",dynamic_cast<AliEMCALDigit*> (sdigits2->At(0))->GetType()); | |
1c67f0f5 | 349 | AliEMCALDigit * digit2 = dynamic_cast<AliEMCALDigit*> (sdigits2->At(0)); |
350 | if(digit2 && digit2->GetType()==AliEMCALDigit::kEmbedded){ | |
6cc75819 | 351 | embed = kTRUE; |
352 | } | |
353 | } | |
354 | } | |
96d5ea0d | 355 | |
6cc75819 | 356 | }//loader2 |
357 | else AliFatal("EMCAL Loader of second event not available!"); | |
358 | ||
359 | } | |
360 | else Fatal("Digitize", "Loader of second input not found"); | |
361 | }// input loop | |
362 | ||
363 | //Find the first tower with signal | |
364 | Int_t nextSig = nEMC + 1 ; | |
365 | TClonesArray * sdigits ; | |
366 | for(i = 0 ; i < fInput ; i++){ | |
367 | if(i > 0 && embed) continue; | |
368 | sdigits = dynamic_cast<TClonesArray *>(sdigArray->At(i)) ; | |
369 | if(sdigits){ | |
370 | if (sdigits->GetEntriesFast() ){ | |
371 | AliEMCALDigit *sd = dynamic_cast<AliEMCALDigit *>(sdigits->At(0)); | |
372 | if(sd){ | |
373 | Int_t curNext = sd->GetId() ; | |
374 | if(curNext < nextSig) | |
375 | nextSig = curNext ; | |
376 | AliDebug(1,Form("input %i : #sdigits %i \n", | |
377 | i, sdigits->GetEntriesFast())); | |
378 | ||
379 | }//First entry is not NULL | |
380 | else { | |
381 | Info("Digitize", "NULL sdigit pointer"); | |
382 | continue; | |
383 | } | |
384 | }//There is at least one entry | |
96d5ea0d | 385 | else { |
6cc75819 | 386 | Info("Digitize", "NULL sdigits array"); |
96d5ea0d | 387 | continue; |
388 | } | |
6cc75819 | 389 | }// SDigits array exists |
96d5ea0d | 390 | else { |
6cc75819 | 391 | Info("Digitizer","Null sdigit pointer"); |
96d5ea0d | 392 | continue; |
53e430a3 | 393 | } |
6cc75819 | 394 | }// input loop |
395 | AliDebug(1,Form("FIRST tower with signal %i \n", nextSig)); | |
396 | ||
397 | TArrayI index(fInput) ; | |
398 | index.Reset() ; //Set all indexes to zero | |
399 | ||
400 | AliEMCALDigit * digit ; | |
401 | AliEMCALDigit * curSDigit ; | |
96d5ea0d | 402 | |
6cc75819 | 403 | //Put Noise contribution, smear time and energy |
404 | Float_t timeResolution = 0; | |
405 | for(absID = 0; absID < nEMC; absID++){ // Nov 30, 2006 by PAI; was from 1 to nEMC | |
406 | Float_t energy = 0 ; | |
96d5ea0d | 407 | |
6cc75819 | 408 | // amplitude set to zero, noise will be added later |
409 | Float_t noiseTime = 0.; | |
410 | if(!embed) noiseTime = TimeOfNoise(); //No need for embedded events? | |
411 | new((*digits)[absID]) AliEMCALDigit( -1, -1, absID, 0., noiseTime,kFALSE); // absID-1->absID | |
412 | //look if we have to add signal? | |
413 | digit = dynamic_cast<AliEMCALDigit *>(digits->At(absID)); // absID-1->absID | |
414 | ||
415 | if (digit) { | |
96d5ea0d | 416 | |
6cc75819 | 417 | if(absID==nextSig){ |
418 | ||
419 | // Calculate time as time of the largest digit | |
420 | Float_t time = digit->GetTime() ; | |
421 | Float_t aTime= digit->GetAmplitude() ; | |
422 | ||
423 | // loop over input | |
424 | Int_t nInputs = fInput; | |
425 | if(embed) nInputs = 1; // In case of embedding, merge later real digits, do not smear energy and time of data | |
426 | for(i = 0; i< nInputs ; i++){ //loop over (possible) merge sources | |
427 | TClonesArray* sdtclarr = dynamic_cast<TClonesArray *>(sdigArray->At(i)); | |
428 | if(sdtclarr) { | |
429 | Int_t sDigitEntries = sdtclarr->GetEntriesFast(); | |
430 | ||
431 | if(sDigitEntries > index[i] ) | |
432 | curSDigit = dynamic_cast<AliEMCALDigit*>(sdtclarr->At(index[i])) ; | |
433 | else | |
434 | curSDigit = 0 ; | |
435 | ||
436 | //May be several digits will contribute from the same input | |
437 | while(curSDigit && (curSDigit->GetId() == absID)){ | |
438 | //Shift primary to separate primaries belonging different inputs | |
439 | Int_t primaryoffset ; | |
440 | if(fManager) | |
441 | primaryoffset = fManager->GetMask(i) ; | |
442 | else | |
443 | primaryoffset = i ; | |
444 | curSDigit->ShiftPrimary(primaryoffset) ; | |
445 | ||
446 | if(curSDigit->GetAmplitude()>aTime) { | |
447 | aTime = curSDigit->GetAmplitude(); | |
448 | time = curSDigit->GetTime(); | |
449 | } | |
450 | ||
451 | *digit = *digit + *curSDigit ; //adds amplitudes of each digit | |
452 | ||
453 | index[i]++ ; | |
454 | ||
455 | if( sDigitEntries > index[i] ) | |
456 | curSDigit = dynamic_cast<AliEMCALDigit*>(sdtclarr->At(index[i])) ; | |
457 | else | |
458 | curSDigit = 0 ; | |
459 | }// while | |
460 | }// source exists | |
461 | }// loop over merging sources | |
462 | ||
463 | ||
464 | //Here we convert the summed amplitude to an energy in GeV only for simulation or mixing of simulations | |
465 | energy = sDigitizer->Calibrate(digit->GetAmplitude()) ; // GeV | |
466 | ||
467 | // add fluctuations for photo-electron creation | |
468 | energy *= static_cast<Float_t>(gRandom->Poisson(fMeanPhotonElectron)) / static_cast<Float_t>(fMeanPhotonElectron) ; | |
469 | ||
470 | //calculate and set time | |
6cc75819 | 471 | digit->SetTime(time) ; |
472 | ||
473 | //Find next signal module | |
474 | nextSig = nEMC + 1 ; | |
475 | for(i = 0 ; i < nInputs ; i++){ | |
476 | sdigits = dynamic_cast<TClonesArray *>(sdigArray->At(i)) ; | |
477 | ||
478 | if(sdigits){ | |
479 | Int_t curNext = nextSig ; | |
480 | if(sdigits->GetEntriesFast() > index[i]) | |
481 | { | |
482 | AliEMCALDigit * tmpdigit = dynamic_cast<AliEMCALDigit *>(sdigits->At(index[i])); | |
483 | if(tmpdigit) | |
484 | { | |
485 | curNext = tmpdigit->GetId() ; | |
486 | } | |
487 | } | |
488 | if(curNext < nextSig) nextSig = curNext ; | |
489 | }// sdigits exist | |
490 | } // input loop | |
491 | ||
492 | }//absID==nextSig | |
96d5ea0d | 493 | |
6cc75819 | 494 | // add the noise now, no need for embedded events with real data |
495 | if(!embed) | |
496 | energy += TMath::Abs(gRandom->Gaus(0., fPinNoise)) ; | |
96d5ea0d | 497 | |
6cc75819 | 498 | |
499 | // JLK 26-June-2008 | |
500 | //Now digitize the energy according to the sDigitizer method, | |
501 | //which merely converts the energy to an integer. Later we will | |
502 | //check that the stored value matches our allowed dynamic ranges | |
503 | digit->SetAmplitude(sDigitizer->Digitize(energy)) ; | |
96d5ea0d | 504 | |
6cc75819 | 505 | //Set time resolution with final energy |
506 | timeResolution = GetTimeResolution(energy); | |
507 | digit->SetTime(gRandom->Gaus(digit->GetTime(),timeResolution) ) ; | |
508 | AliDebug(10,Form(" absID %5i energy %f nextSig %5i\n", | |
509 | absID, energy, nextSig)); | |
510 | //Add delay to time | |
511 | digit->SetTime(digit->GetTime()+fTimeDelay) ; | |
512 | ||
513 | }// Digit pointer exists | |
514 | else{ | |
515 | Info("Digitizer","Digit pointer is null"); | |
516 | } | |
517 | } // for(absID = 0; absID < nEMC; absID++) | |
518 | ||
519 | //ticks->Delete() ; | |
520 | //delete ticks ; | |
521 | ||
522 | //Embed simulated amplitude (and time?) to real data digits | |
523 | if(embed){ | |
524 | for(Int_t input = 1; input<fInput; input++){ | |
525 | TClonesArray *realDigits = dynamic_cast<TClonesArray*> (sdigArray->At(input)); | |
526 | if(!realDigits){ | |
527 | AliDebug(1,"No sdigits to merge\n"); | |
528 | continue; | |
529 | } | |
530 | for(Int_t i2 = 0 ; i2 < realDigits->GetEntriesFast() ; i2++){ | |
531 | AliEMCALDigit * digit2 = dynamic_cast<AliEMCALDigit*>( realDigits->At(i2) ) ; | |
532 | if(digit2){ | |
533 | digit = dynamic_cast<AliEMCALDigit*>( digits->At(digit2->GetId()) ) ; | |
534 | if(digit){ | |
96d5ea0d | 535 | |
6cc75819 | 536 | // Put the embedded cell energy in same units as simulated sdigits -> transform to energy units |
537 | // and multiply to get a big int. | |
538 | Float_t time2 = digit2->GetTime(); | |
539 | Float_t e2 = digit2->GetAmplitude(); | |
540 | CalibrateADCTime(e2,time2,digit2->GetId()); | |
541 | Float_t amp2 = sDigitizer->Digitize(e2); | |
96d5ea0d | 542 | |
6cc75819 | 543 | Float_t e0 = digit ->GetAmplitude(); |
544 | if(e0>0.01) | |
545 | 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", | |
546 | digit ->GetId(),digit ->GetAmplitude(), digit ->GetType(), digit->GetTime(), | |
547 | digit2->GetId(),amp2, digit2->GetType(), time2 )); | |
96d5ea0d | 548 | |
6cc75819 | 549 | // Sum amplitudes, change digit amplitude |
550 | digit->SetAmplitude( digit->GetAmplitude() + amp2); | |
551 | // Rough assumption, assign time of the largest of the 2 digits, | |
552 | // data or signal to the final digit. | |
553 | if(amp2 > digit->GetAmplitude()) digit->SetTime(time2); | |
554 | //Mark the new digit as embedded | |
555 | digit->SetType(AliEMCALDigit::kEmbedded); | |
556 | ||
557 | if(digit2->GetAmplitude()>0.01 && e0> 0.01 ) | |
558 | AliDebug(1,Form("Embedded digit: Abs ID %d, amp %f, type %d\n", | |
559 | digit->GetId(), digit->GetAmplitude(), digit->GetType())); | |
560 | }//digit2 | |
561 | }//digit2 | |
562 | }//loop digit 2 | |
563 | }//input loop | |
564 | }//embed | |
565 | ||
566 | //JLK is it better to call Clear() here? | |
567 | delete sdigArray ; //We should not delete its contents | |
568 | ||
569 | //remove digits below thresholds | |
570 | // until 10-02-2010 remove digits with energy smaller than fDigitThreshold 3*fPinNoise | |
571 | // now, remove digits with Digitized ADC smaller than fDigitThreshold = 3, | |
572 | // before merge in the same loop real data digits if available | |
573 | Float_t energy = 0; | |
574 | Float_t time = 0; | |
575 | for(i = 0 ; i < nEMC ; i++){ | |
576 | digit = dynamic_cast<AliEMCALDigit*>( digits->At(i) ) ; | |
577 | if(digit){ | |
96d5ea0d | 578 | |
6cc75819 | 579 | //Then get the energy in GeV units. |
580 | energy = sDigitizer->Calibrate(digit->GetAmplitude()) ; | |
581 | //Then digitize using the calibration constants of the ocdb | |
582 | Float_t ampADC = energy; | |
583 | DigitizeEnergyTime(ampADC, time, digit->GetId()) ; | |
584 | if(ampADC < fDigitThreshold) | |
585 | digits->RemoveAt(i) ; | |
7d525d9d | 586 | |
6cc75819 | 587 | }// digit exists |
588 | } // digit loop | |
589 | ||
590 | digits->Compress() ; | |
591 | ||
592 | Int_t ndigits = digits->GetEntriesFast() ; | |
593 | ||
594 | //JLK 26-June-2008 | |
595 | //After we have done the summing and digitizing to create the | |
596 | //digits, now we want to calibrate the resulting amplitude to match | |
597 | //the dynamic range of our real data. | |
598 | for (i = 0 ; i < ndigits ; i++) { | |
599 | digit = dynamic_cast<AliEMCALDigit *>( digits->At(i) ) ; | |
600 | if(digit){ | |
601 | digit->SetIndexInList(i) ; | |
602 | energy = sDigitizer->Calibrate(digit->GetAmplitude()) ; | |
603 | time = digit->GetTime(); | |
604 | Float_t ampADC = energy; | |
605 | DigitizeEnergyTime(ampADC, time, digit->GetId()); | |
606 | digit->SetAmplitude(ampADC) ; | |
607 | digit->SetTime(time); | |
608 | // printf("digit amplitude set at end: i %d, amp %f\n",i,digit->GetAmplitude()); | |
609 | }// digit exists | |
610 | }//Digit loop | |
611 | ||
612 | }//SDigitizer not null | |
7e1d9a9b | 613 | } |
614 | else AliFatal("EMCALLoader is NULL!") ; | |
6cc75819 | 615 | |
814ad4bf | 616 | } |
61e0abb5 | 617 | |
6cc75819 | 618 | //_____________________________________________________________________ |
619 | void AliEMCALDigitizer::DigitizeEnergyTime(Float_t & energy, Float_t & time, const Int_t absId) | |
814ad4bf | 620 | { |
ab6a174f | 621 | // JLK 26-June-2008 |
e4dcc484 | 622 | // Returns digitized value of the energy in a cell absId |
ab6a174f | 623 | // using the calibration constants stored in the OCDB |
624 | // or default values if no CalibData object is found. | |
625 | // This effectively converts everything to match the dynamic range | |
626 | // of the real data we will collect | |
627 | // | |
53f1c378 | 628 | // Load Geometry |
629 | const AliEMCALGeometry * geom = AliEMCALGeometry::GetInstance(); | |
d62a891a | 630 | |
96d5ea0d | 631 | if (geom==0){ |
632 | AliFatal("Did not get geometry from EMCALLoader"); | |
6cc75819 | 633 | return; |
e4dcc484 | 634 | } |
5eb74a51 | 635 | |
6cc75819 | 636 | Int_t iSupMod = -1; |
637 | Int_t nModule = -1; | |
638 | Int_t nIphi = -1; | |
639 | Int_t nIeta = -1; | |
640 | Int_t iphi = -1; | |
641 | Int_t ieta = -1; | |
642 | Bool_t bCell = geom->GetCellIndex(absId, iSupMod, nModule, nIphi, nIeta) ; | |
643 | if(!bCell) | |
644 | Error("DigitizeEnergyTime","Wrong cell id number : absId %i ", absId) ; | |
645 | geom->GetCellPhiEtaIndexInSModule(iSupMod,nModule,nIphi, nIeta,iphi,ieta); | |
96d5ea0d | 646 | |
6cc75819 | 647 | if(fCalibData) { |
648 | fADCpedestalEC = fCalibData->GetADCpedestal (iSupMod,ieta,iphi); | |
649 | fADCchannelEC = fCalibData->GetADCchannel (iSupMod,ieta,iphi); | |
650 | fADCchannelECDecal = fCalibData->GetADCchannelDecal (iSupMod,ieta,iphi); | |
651 | fTimeChannel = fCalibData->GetTimeChannel (iSupMod,ieta,iphi); | |
652 | fTimeChannelDecal = fCalibData->GetTimeChannelDecal(iSupMod,ieta,iphi); | |
653 | } | |
654 | ||
655 | //Apply calibration to get ADC counts and partial decalibration as especified in OCDB | |
656 | energy = (energy + fADCpedestalEC)/fADCchannelEC/fADCchannelECDecal ; | |
657 | time += fTimeChannel-fTimeChannelDecal; | |
658 | ||
659 | if(energy > fNADCEC ) | |
660 | energy = fNADCEC ; | |
661 | } | |
829ba234 | 662 | |
6cc75819 | 663 | //_____________________________________________________________________ |
664 | void AliEMCALDigitizer::CalibrateADCTime(Float_t & adc, Float_t & time, const Int_t absId) | |
665 | { | |
666 | // Returns the energy in a cell absId with a given adc value | |
667 | // using the calibration constants stored in the OCDB. Time also corrected from parameter in OCDB | |
668 | // Used in case of embedding, transform ADC counts from real event into energy | |
669 | // so that we can add the energy of the simulated sdigits which are in energy | |
670 | // units. | |
671 | // Same as in AliEMCALClusterizer::Calibrate() but here we do not reject channels being marked as hot | |
672 | // or with time out of window | |
673 | ||
674 | // Load Geometry | |
675 | const AliEMCALGeometry * geom = AliEMCALGeometry::GetInstance(); | |
676 | ||
677 | if (!geom){ | |
678 | AliFatal("Did not get geometry from EMCALLoader"); | |
679 | return; | |
680 | } | |
681 | ||
682 | Int_t iSupMod = -1; | |
683 | Int_t nModule = -1; | |
684 | Int_t nIphi = -1; | |
685 | Int_t nIeta = -1; | |
686 | Int_t iphi = -1; | |
687 | Int_t ieta = -1; | |
688 | Bool_t bCell = geom->GetCellIndex(absId, iSupMod, nModule, nIphi, nIeta) ; | |
689 | if(!bCell) | |
690 | Error("CalibrateADCTime","Wrong cell id number : absId %i ", absId) ; | |
691 | geom->GetCellPhiEtaIndexInSModule(iSupMod,nModule,nIphi, nIeta,iphi,ieta); | |
692 | ||
693 | if(fCalibData) { | |
694 | fADCpedestalEC = fCalibData->GetADCpedestal(iSupMod,ieta,iphi); | |
695 | fADCchannelEC = fCalibData->GetADCchannel (iSupMod,ieta,iphi); | |
696 | fTimeChannel = fCalibData->GetTimeChannel(iSupMod,ieta,iphi); | |
697 | } | |
698 | ||
699 | adc = adc * fADCchannelEC - fADCpedestalEC; | |
700 | time -= fTimeChannel; | |
96d5ea0d | 701 | |
d62a891a | 702 | |
61e0abb5 | 703 | } |
704 | ||
6cc75819 | 705 | |
61e0abb5 | 706 | //____________________________________________________________________________ |
05a92d59 | 707 | void AliEMCALDigitizer::Exec(Option_t *option) |
708 | { | |
45fa49ca | 709 | // Steering method to process digitization for events |
710 | // in the range from fFirstEvent to fLastEvent. | |
711 | // This range is optionally set by SetEventRange(). | |
712 | // if fLastEvent=-1, then process events until the end. | |
713 | // by default fLastEvent = fFirstEvent (process only one event) | |
05a92d59 | 714 | |
88cb7938 | 715 | if (!fInit) { // to prevent overwrite existing file |
716 | Error( "Exec", "Give a version name different from %s", fEventFolderName.Data() ) ; | |
717 | return ; | |
718 | } | |
719 | ||
814ad4bf | 720 | if (strstr(option,"print")) { |
b42d4197 | 721 | |
88cb7938 | 722 | Print(); |
814ad4bf | 723 | return ; |
724 | } | |
725 | ||
61e0abb5 | 726 | if(strstr(option,"tim")) |
727 | gBenchmark->Start("EMCALDigitizer"); | |
5dee926e | 728 | |
33c3c91a | 729 | AliRunLoader *rl = AliRunLoader::Instance(); |
5dee926e | 730 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL")); |
96d5ea0d | 731 | Int_t nEvents = 0; |
732 | if(!emcalLoader){ | |
733 | AliFatal("Did not get the Loader"); | |
30bc5594 | 734 | } |
96d5ea0d | 735 | else{ |
736 | // Post Digitizer to the white board | |
737 | emcalLoader->PostDigitizer(this) ; | |
64942713 | 738 | |
96d5ea0d | 739 | if (fLastEvent == -1) { |
740 | fLastEvent = rl->GetNumberOfEvents() - 1 ; | |
741 | } | |
742 | else if (fManager) | |
743 | fLastEvent = fFirstEvent ; // what is this ?? | |
744 | ||
745 | nEvents = fLastEvent - fFirstEvent + 1; | |
746 | Int_t ievent = -1; | |
88cb7938 | 747 | |
96d5ea0d | 748 | TClonesArray* digitsTMP = new TClonesArray("AliEMCALDigit", 32*96); |
749 | TClonesArray* digitsTRG = new TClonesArray("AliEMCALRawDigit", 32*96); | |
88cb7938 | 750 | |
96d5ea0d | 751 | rl->LoadSDigits("EMCAL"); |
752 | for (ievent = fFirstEvent; ievent <= fLastEvent; ievent++) { | |
753 | ||
754 | rl->GetEvent(ievent); | |
755 | ||
756 | Digitize(ievent) ; //Add prepared SDigits to digits and add the noise | |
757 | ||
758 | WriteDigits() ; | |
759 | ||
760 | //Trigger Digits | |
761 | //------------------------------------- | |
762 | ||
88cb7938 | 763 | |
96d5ea0d | 764 | Digits2FastOR(digitsTMP, digitsTRG); |
765 | ||
766 | WriteDigits(digitsTRG); | |
767 | ||
768 | (emcalLoader->TreeD())->Fill(); | |
769 | ||
770 | emcalLoader->WriteDigits( "OVERWRITE"); | |
771 | emcalLoader->WriteDigitizer("OVERWRITE"); | |
772 | ||
773 | Unload(); | |
774 | ||
775 | digitsTRG ->Delete(); | |
776 | digitsTMP ->Delete(); | |
777 | ||
778 | //------------------------------------- | |
779 | ||
780 | if(strstr(option,"deb")) | |
781 | PrintDigits(option); | |
782 | if(strstr(option,"table")) gObjectTable->Print(); | |
783 | ||
784 | //increment the total number of Digits per run | |
785 | fDigitsInRun += emcalLoader->Digits()->GetEntriesFast() ; | |
786 | }//loop | |
787 | ||
96d5ea0d | 788 | emcalLoader->CleanDigitizer() ; |
789 | ||
790 | }//loader exists | |
64942713 | 791 | |
61e0abb5 | 792 | if(strstr(option,"tim")){ |
793 | gBenchmark->Stop("EMCALDigitizer"); | |
b42d4197 | 794 | AliInfo(Form("Exec: took %f seconds for Digitizing %f seconds per event", |
795 | gBenchmark->GetCpuTime("EMCALDigitizer"), gBenchmark->GetCpuTime("EMCALDigitizer")/nEvents )) ; | |
88cb7938 | 796 | } |
61e0abb5 | 797 | } |
798 | ||
a2f8e711 | 799 | //__________________________________________________________________ |
800 | Float_t AliEMCALDigitizer::GetTimeResolution(Float_t energy) const | |
801 | { | |
802 | // From F. Blanco | |
803 | Float_t res = -1; | |
804 | if (energy > 0) { | |
805 | res = TMath::Sqrt(fTimeResolutionPar0 + | |
806 | fTimeResolutionPar1/(energy*energy) ); | |
807 | } | |
b2a891e0 | 808 | // parametrization above is for ns. Convert to seconds: |
809 | return res*1e-9; | |
a2f8e711 | 810 | } |
811 | ||
916f1e76 | 812 | //____________________________________________________________________________ |
813 | void AliEMCALDigitizer::Digits2FastOR(TClonesArray* digitsTMP, TClonesArray* digitsTRG) | |
814 | { | |
de39a0ff | 815 | // FEE digits afterburner to produce TRG digits |
816 | // we are only interested in the FEE digit deposited energy | |
817 | // to be converted later into a voltage value | |
818 | ||
819 | // push the FEE digit to its associated FastOR (numbered from 0:95) | |
820 | // TRU is in charge of summing module digits | |
821 | ||
822 | AliRunLoader *runLoader = AliRunLoader::Instance(); | |
823 | ||
824 | AliRun* run = runLoader->GetAliRun(); | |
825 | ||
826 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(runLoader->GetDetectorLoader("EMCAL")); | |
827 | if(!emcalLoader){ | |
828 | AliFatal("Did not get the Loader"); | |
96d5ea0d | 829 | } |
830 | else { | |
7e1d9a9b | 831 | AliEMCAL* emcal = dynamic_cast<AliEMCAL*>(run->GetDetector("EMCAL")); |
832 | if(emcal){ | |
833 | AliEMCALGeometry* geom = emcal->GetGeometry(); | |
834 | ||
835 | // build FOR from simulated digits | |
836 | // and xfer to the corresponding TRU input (mapping) | |
7d525d9d | 837 | |
7e1d9a9b | 838 | TClonesArray* digits = emcalLoader->Digits(); |
839 | ||
840 | TIter NextDigit(digits); | |
841 | while (AliEMCALDigit* digit = (AliEMCALDigit*)NextDigit()) | |
96d5ea0d | 842 | { |
7e1d9a9b | 843 | Int_t id = digit->GetId(); |
7d525d9d | 844 | |
7e1d9a9b | 845 | Int_t trgid; |
846 | if (geom && geom->GetFastORIndexFromCellIndex(id , trgid)) | |
847 | { | |
848 | AliDebug(1,Form("trigger digit id: %d from cell id: %d\n",trgid,id)); | |
849 | ||
850 | AliEMCALDigit* d = static_cast<AliEMCALDigit*>(digitsTMP->At(trgid)); | |
851 | ||
852 | if (!d) | |
853 | { | |
854 | new((*digitsTMP)[trgid]) AliEMCALDigit(*digit); | |
855 | d = (AliEMCALDigit*)digitsTMP->At(trgid); | |
856 | d->SetId(trgid); | |
857 | } | |
858 | else | |
859 | { | |
860 | *d = *d + *digit; | |
861 | } | |
862 | } | |
96d5ea0d | 863 | } |
7e1d9a9b | 864 | |
865 | if (AliDebugLevel()) printf("Number of TRG digits: %d\n",digitsTMP->GetEntriesFast()); | |
866 | ||
867 | Int_t nSamples = 32; | |
868 | Int_t *timeSamples = new Int_t[nSamples]; | |
869 | ||
870 | NextDigit = TIter(digitsTMP); | |
871 | while (AliEMCALDigit* digit = (AliEMCALDigit*)NextDigit()) | |
96d5ea0d | 872 | { |
7e1d9a9b | 873 | if (digit) |
874 | { | |
875 | Int_t id = digit->GetId(); | |
876 | Float_t time = digit->GetTime(); | |
877 | ||
878 | Double_t depositedEnergy = 0.; | |
879 | for (Int_t j = 1; j <= digit->GetNprimary(); j++) depositedEnergy += digit->GetDEPrimary(j); | |
7d525d9d | 880 | |
7e1d9a9b | 881 | if (AliDebugLevel()) printf("Deposited Energy: %f\n", depositedEnergy); |
882 | ||
883 | // FIXME: Check digit time! | |
884 | if (depositedEnergy) | |
7d525d9d | 885 | { |
7e1d9a9b | 886 | DigitalFastOR(time, depositedEnergy, timeSamples, nSamples); |
887 | ||
888 | for (Int_t j=0;j<nSamples;j++) | |
889 | { | |
890 | timeSamples[j] = ((j << 12) & 0xFF000) | (timeSamples[j] & 0xFFF); | |
891 | } | |
892 | ||
893 | new((*digitsTRG)[digitsTRG->GetEntriesFast()]) AliEMCALRawDigit(id, timeSamples, nSamples); | |
7d525d9d | 894 | } |
7e1d9a9b | 895 | } |
96d5ea0d | 896 | } |
7e1d9a9b | 897 | |
898 | delete [] timeSamples; | |
899 | }// AliEMCAL exists | |
900 | else AliFatal("Could not get AliEMCAL"); | |
96d5ea0d | 901 | }// loader exists |
902 | ||
916f1e76 | 903 | } |
904 | ||
905 | //____________________________________________________________________________ | |
906 | void AliEMCALDigitizer::DigitalFastOR( Double_t time, Double_t dE, Int_t timeSamples[], Int_t nSamples ) | |
907 | { | |
908 | // parameters: | |
909 | // id: 0..95 | |
910 | const Int_t reso = 11; // 11-bit resolution ADC | |
911 | const Double_t vFSR = 1; // Full scale input voltage range | |
a2f8e711 | 912 | const Double_t dNe = 125; // signal of the APD per MeV of energy deposit in a tower: 125 photo-e-/MeV @ M=30 |
916f1e76 | 913 | const Double_t vA = .136e-6; // CSP output range: 0.136uV/e- |
914 | const Double_t rise = 40e-9; // rise time (10-90%) of the FastOR signal before shaping | |
915 | ||
916 | const Double_t kTimeBinWidth = 25E-9; // sampling frequency (40MHz) | |
917 | ||
a2f8e711 | 918 | Double_t vV = 1000. * dE * dNe * vA; // GeV 2 MeV |
916f1e76 | 919 | |
920 | TF1 signalF("signal", AnalogFastORFunction, 0, nSamples * kTimeBinWidth, 3); | |
921 | signalF.SetParameter( 0, vV ); | |
922 | signalF.SetParameter( 1, time ); // FIXME: when does the signal arrive? Might account for cable lengths | |
923 | signalF.SetParameter( 2, rise ); | |
924 | ||
925 | for (Int_t iTime=0; iTime<nSamples; iTime++) | |
926 | { | |
927 | // FIXME: add noise (probably not simply Gaussian) according to DA measurements | |
928 | // probably plan an access to OCDB | |
929 | ||
930 | timeSamples[iTime] = int((TMath::Power(2, reso) / vFSR) * signalF.Eval(iTime * kTimeBinWidth) + 0.5); | |
931 | } | |
932 | } | |
933 | ||
05a92d59 | 934 | //____________________________________________________________________________ |
935 | Bool_t AliEMCALDigitizer::Init() | |
936 | { | |
937 | // Makes all memory allocations | |
88cb7938 | 938 | fInit = kTRUE ; |
33c3c91a | 939 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL")); |
61d80ce0 | 940 | |
5dee926e | 941 | if ( emcalLoader == 0 ) { |
942 | Fatal("Init", "Could not obtain the AliEMCALLoader"); | |
05a92d59 | 943 | return kFALSE; |
944 | } | |
61d80ce0 | 945 | |
45fa49ca | 946 | fFirstEvent = 0 ; |
947 | fLastEvent = fFirstEvent ; | |
948 | ||
88cb7938 | 949 | if(fManager) |
950 | fInput = fManager->GetNinputs() ; | |
951 | else | |
952 | fInput = 1 ; | |
953 | ||
954 | fInputFileNames = new TString[fInput] ; | |
955 | fEventNames = new TString[fInput] ; | |
956 | fInputFileNames[0] = GetTitle() ; | |
957 | fEventNames[0] = fEventFolderName.Data() ; | |
958 | Int_t index ; | |
959 | for (index = 1 ; index < fInput ; index++) { | |
960 | fInputFileNames[index] = dynamic_cast<AliStream*>(fManager->GetInputStream(index))->GetFileName(0); | |
961 | TString tempo = fManager->GetInputFolderName(index) ; | |
962 | fEventNames[index] = tempo.Remove(tempo.Length()-1) ; // strip of the stream number added bt fManager | |
05a92d59 | 963 | } |
964 | ||
88cb7938 | 965 | //to prevent cleaning of this object while GetEvent is called |
5dee926e | 966 | emcalLoader->GetDigitsDataLoader()->GetBaseTaskLoader()->SetDoNotReload(kTRUE); |
61d80ce0 | 967 | |
53f1c378 | 968 | //Calibration instance |
969 | fCalibData = emcalLoader->CalibData(); | |
88cb7938 | 970 | return fInit ; |
05a92d59 | 971 | } |
972 | ||
973 | //____________________________________________________________________________ | |
974 | void AliEMCALDigitizer::InitParameters() | |
14ce0a6e | 975 | { |
29b5d492 | 976 | // Parameter initialization for digitizer |
6569f329 | 977 | |
978 | // Get the parameters from the OCDB via the loader | |
979 | AliRunLoader *rl = AliRunLoader::Instance(); | |
980 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL")); | |
981 | AliEMCALSimParam * simParam = 0x0; | |
982 | if(emcalLoader) simParam = emcalLoader->SimulationParameters(); | |
983 | ||
984 | if(!simParam){ | |
61d80ce0 | 985 | simParam = AliEMCALSimParam::GetInstance(); |
986 | AliWarning("Simulation Parameters not available in OCDB?"); | |
6569f329 | 987 | } |
61d80ce0 | 988 | |
6569f329 | 989 | fMeanPhotonElectron = simParam->GetMeanPhotonElectron();//4400; // electrons per GeV |
990 | fPinNoise = simParam->GetPinNoise();//0.012; // pin noise in GeV from analysis test beam data | |
33a52e55 | 991 | if (fPinNoise < 0.0001 ) |
88cb7938 | 992 | Warning("InitParameters", "No noise added\n") ; |
6cc75819 | 993 | fTimeNoise = simParam->GetTimeNoise(); // 1.28E-5 s |
6569f329 | 994 | fDigitThreshold = simParam->GetDigitThreshold(); //fPinNoise * 3; // 3 * sigma |
a2f8e711 | 995 | fTimeResolutionPar0 = simParam->GetTimeResolutionPar0(); |
996 | fTimeResolutionPar1 = simParam->GetTimeResolutionPar1(); | |
f0a6dc6f | 997 | fTimeDelay = simParam->GetTimeDelay(); //600e-9 ; // 600 ns |
61d80ce0 | 998 | |
97075cd8 | 999 | // These defaults are normally not used. |
1000 | // Values are read from calibration database instead | |
33a52e55 | 1001 | fADCchannelEC = 0.0153; // Update 24 Apr 2007: 250./16/1024 - width of one ADC channel in GeV |
6cc75819 | 1002 | fADCpedestalEC = 0.0 ; // GeV |
1003 | fADCchannelECDecal = 1.0; // No decalibration by default | |
1004 | fTimeChannel = 0.0; // No time calibration by default | |
1005 | fTimeChannelDecal = 0.0; // No time decalibration by default | |
33a52e55 | 1006 | |
6cc75819 | 1007 | fNADCEC = simParam->GetNADCEC();//(Int_t) TMath::Power(2,16) ; // number of channels in Tower ADC - 65536 |
61d80ce0 | 1008 | |
6cc75819 | 1009 | AliDebug(2,Form("Mean Photon Electron %d, Noise: APD %f, Time %f; Digit Threshold %d,Time Resolution Par0 %g Par1 %g,NADCEC %d", |
61d80ce0 | 1010 | fMeanPhotonElectron,fPinNoise,fTimeNoise, fDigitThreshold,fTimeResolutionPar0,fTimeResolutionPar1,fNADCEC)); |
1011 | ||
05a92d59 | 1012 | } |
61e0abb5 | 1013 | |
fe93d365 | 1014 | //__________________________________________________________________ |
1963b290 | 1015 | void AliEMCALDigitizer::Print1(Option_t * option) |
6cc75819 | 1016 | { // 19-nov-04 - just for convenience |
1963b290 | 1017 | Print(); |
1018 | PrintDigits(option); | |
1019 | } | |
1020 | ||
61e0abb5 | 1021 | //__________________________________________________________________ |
6cc75819 | 1022 | void AliEMCALDigitizer::Print (Option_t * ) const |
88cb7938 | 1023 | { |
1024 | // Print Digitizer's parameters | |
fdebddeb | 1025 | printf("Print: \n------------------- %s -------------", GetName() ) ; |
88cb7938 | 1026 | if( strcmp(fEventFolderName.Data(), "") != 0 ){ |
1027 | printf(" Writing Digits to branch with title %s\n", fEventFolderName.Data()) ; | |
1028 | ||
1029 | Int_t nStreams ; | |
1030 | if (fManager) | |
1031 | nStreams = GetNInputStreams() ; | |
1032 | else | |
1033 | nStreams = fInput ; | |
61d80ce0 | 1034 | |
53e430a3 | 1035 | AliRunLoader *rl=0; |
88cb7938 | 1036 | |
1037 | Int_t index = 0 ; | |
1038 | for (index = 0 ; index < nStreams ; index++) { | |
1039 | TString tempo(fEventNames[index]) ; | |
1040 | tempo += index ; | |
5dee926e | 1041 | if ((rl = AliRunLoader::GetRunLoader(tempo)) == 0) |
96d5ea0d | 1042 | rl = AliRunLoader::Open(fInputFileNames[index], tempo) ; |
5dee926e | 1043 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL")); |
96d5ea0d | 1044 | if(emcalLoader){ |
1045 | TString fileName( emcalLoader->GetSDigitsFileName() ) ; | |
1046 | if ( fEventNames[index] != AliConfig::GetDefaultEventFolderName()) // only if not the default folder name | |
1047 | fileName = fileName.ReplaceAll(".root", "") + "_" + fEventNames[index] + ".root" ; | |
1048 | printf ("Adding SDigits from %s %s\n", fInputFileNames[index].Data(), fileName.Data()) ; | |
1049 | }//loader | |
88cb7938 | 1050 | } |
61d80ce0 | 1051 | |
33c3c91a | 1052 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL")); |
61d80ce0 | 1053 | |
96d5ea0d | 1054 | if(emcalLoader) printf("\nWriting digits to %s", emcalLoader->GetDigitsFileName().Data()) ; |
1055 | else printf("\nNULL LOADER"); | |
61d80ce0 | 1056 | |
88cb7938 | 1057 | printf("\nWith following parameters:\n") ; |
6cc75819 | 1058 | printf(" Electronics noise in EMC, APD (fPinNoise) = %f, Time = %f \n", fPinNoise, fTimeNoise) ; |
4354827d | 1059 | printf(" Threshold in Tower (fDigitThreshold) = %d\n", fDigitThreshold) ; |
88cb7938 | 1060 | printf("---------------------------------------------------\n") ; |
ea5f3389 | 1061 | } |
1062 | else | |
fdebddeb | 1063 | printf("Print: AliEMCALDigitizer not initialized") ; |
61e0abb5 | 1064 | } |
814ad4bf | 1065 | |
e41b8233 | 1066 | //__________________________________________________________________ |
14ce0a6e | 1067 | void AliEMCALDigitizer::PrintDigits(Option_t * option) |
1068 | { | |
1069 | //utility method for printing digit information | |
61d80ce0 | 1070 | |
33c3c91a | 1071 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL")); |
96d5ea0d | 1072 | if(emcalLoader){ |
1073 | TClonesArray * digits = emcalLoader->Digits() ; | |
1074 | TClonesArray * sdigits = emcalLoader->SDigits() ; | |
1075 | ||
1076 | printf("\n #Digits: %d : sdigits %d ", digits->GetEntriesFast(), sdigits->GetEntriesFast()) ; | |
1077 | printf("\n event %d", emcalLoader->GetRunLoader()->GetEventNumber()); | |
1078 | ||
1079 | if(strstr(option,"all")){ | |
1080 | //loop over digits | |
1081 | AliEMCALDigit * digit; | |
1082 | printf("\nEMC digits (with primaries):\n") ; | |
1083 | printf("\n Id Amplitude Time Index Nprim: Primaries list \n") ; | |
1084 | Int_t index ; | |
1085 | for (index = 0 ; index < digits->GetEntries() ; index++) { | |
1086 | digit = dynamic_cast<AliEMCALDigit *>(digits->At(index)) ; | |
1087 | if(digit){ | |
1088 | printf("\n%6d %8f %6.5e %4d %2d : ", | |
1089 | digit->GetId(), digit->GetAmplitude(), digit->GetTime(), digit->GetIndexInList(), digit->GetNprimary()) ; | |
1090 | Int_t iprimary; | |
1091 | for (iprimary=0; iprimary<digit->GetNprimary(); iprimary++) { | |
1092 | printf("%d ",digit->GetPrimary(iprimary+1) ) ; | |
1093 | } | |
1094 | }// digit exists | |
1095 | }// loop | |
1096 | } | |
1097 | printf("\n"); | |
1098 | }// loader exists | |
1099 | else printf("NULL LOADER, cannot print\n"); | |
61e0abb5 | 1100 | } |
05a92d59 | 1101 | |
1102 | //__________________________________________________________________ | |
1103 | Float_t AliEMCALDigitizer::TimeOfNoise(void) | |
04f0bda3 | 1104 | { |
1105 | // Calculates the time signal generated by noise | |
6cc75819 | 1106 | //printf("Time noise %e\n",fTimeNoise); |
1107 | return gRandom->Rndm() * fTimeNoise; | |
05a92d59 | 1108 | } |
1109 | ||
88cb7938 | 1110 | //__________________________________________________________________ |
1111 | void AliEMCALDigitizer::Unload() | |
1112 | { | |
fdebddeb | 1113 | // Unloads the SDigits and Digits |
5dee926e | 1114 | AliRunLoader *rl=0; |
1115 | ||
88cb7938 | 1116 | Int_t i ; |
1117 | for(i = 1 ; i < fInput ; i++){ | |
1118 | TString tempo(fEventNames[i]) ; | |
5dee926e | 1119 | tempo += i; |
1120 | if ((rl = AliRunLoader::GetRunLoader(tempo))) | |
1121 | rl->GetDetectorLoader("EMCAL")->UnloadSDigits() ; | |
88cb7938 | 1122 | } |
33c3c91a | 1123 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL")); |
96d5ea0d | 1124 | if(emcalLoader)emcalLoader->UnloadDigits() ; |
1125 | else AliFatal("Did not get the loader"); | |
88cb7938 | 1126 | } |
1127 | ||
814ad4bf | 1128 | //_________________________________________________________________________________________ |
9e5d2067 | 1129 | void AliEMCALDigitizer::WriteDigits() |
a2f8e711 | 1130 | { // Makes TreeD in the output file. |
814ad4bf | 1131 | // Check if branch already exists: |
1132 | // if yes, exit without writing: ROOT TTree does not support overwriting/updating of | |
1133 | // already existing branches. | |
1134 | // else creates branch with Digits, named "EMCAL", title "...", | |
1135 | // and branch "AliEMCALDigitizer", with the same title to keep all the parameters | |
1136 | // and names of files, from which digits are made. | |
96d5ea0d | 1137 | |
33c3c91a | 1138 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL")); |
96d5ea0d | 1139 | |
1140 | if(emcalLoader){ | |
1141 | const TClonesArray * digits = emcalLoader->Digits() ; | |
1142 | TTree * treeD = emcalLoader->TreeD(); | |
1143 | if ( !treeD ) { | |
1144 | emcalLoader->MakeDigitsContainer(); | |
1145 | treeD = emcalLoader->TreeD(); | |
1146 | } | |
1147 | ||
1148 | // -- create Digits branch | |
1149 | Int_t bufferSize = 32000 ; | |
1150 | TBranch * digitsBranch = 0; | |
1151 | if ((digitsBranch = treeD->GetBranch("EMCAL"))) { | |
1152 | digitsBranch->SetAddress(&digits); | |
1153 | AliWarning("Digits Branch already exists. Not all digits will be visible"); | |
1154 | } | |
1155 | else | |
1156 | treeD->Branch("EMCAL","TClonesArray",&digits,bufferSize); | |
1157 | //digitsBranch->SetTitle(fEventFolderName); | |
1158 | ||
1159 | // treeD->Fill() ; | |
1160 | /* | |
1161 | emcalLoader->WriteDigits("OVERWRITE"); | |
1162 | emcalLoader->WriteDigitizer("OVERWRITE"); | |
1163 | ||
1164 | Unload() ; | |
1165 | */ | |
1166 | ||
1167 | }// loader exists | |
1168 | else AliFatal("Loader not available"); | |
916f1e76 | 1169 | } |
88cb7938 | 1170 | |
916f1e76 | 1171 | //__________________________________________________________________ |
1172 | void AliEMCALDigitizer::WriteDigits(TClonesArray* digits, const char* branchName) | |
a2f8e711 | 1173 | { // overloaded method |
61d80ce0 | 1174 | AliEMCALLoader *emcalLoader = dynamic_cast<AliEMCALLoader*>(AliRunLoader::Instance()->GetDetectorLoader("EMCAL")); |
1175 | if(emcalLoader){ | |
96d5ea0d | 1176 | |
1177 | TTree* treeD = emcalLoader->TreeD(); | |
1178 | if (!treeD) | |
61d80ce0 | 1179 | { |
1180 | emcalLoader->MakeDigitsContainer(); | |
1181 | treeD = emcalLoader->TreeD(); | |
1182 | } | |
96d5ea0d | 1183 | |
1184 | // -- create Digits branch | |
1185 | Int_t bufferSize = 32000; | |
1186 | ||
1187 | if (TBranch* triggerBranch = treeD->GetBranch(branchName)) | |
61d80ce0 | 1188 | { |
1189 | triggerBranch->SetAddress(&digits); | |
1190 | } | |
96d5ea0d | 1191 | else |
61d80ce0 | 1192 | { |
1193 | treeD->Branch(branchName,"TClonesArray",&digits,bufferSize); | |
1194 | } | |
96d5ea0d | 1195 | |
1196 | // treeD->Fill(); | |
1197 | }// loader exists | |
1198 | else AliFatal("Loader not available"); | |
814ad4bf | 1199 | } |
61e0abb5 | 1200 |