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92aeef15 | 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 | ||
9edefa04 | 18 | |
92aeef15 | 19 | #include "AliMUONDigitizerV3.h" |
20 | ||
40e382ae | 21 | #include "AliCDBManager.h" |
b74ca120 | 22 | #include "AliCodeTimer.h" |
40e382ae | 23 | #include "AliLog.h" |
4ce497c4 | 24 | #include "AliMUON.h" |
92aeef15 | 25 | #include "AliMUONCalibrationData.h" |
92aeef15 | 26 | #include "AliMUONConstants.h" |
92aeef15 | 27 | #include "AliMUONDigit.h" |
ad26d4f6 | 28 | #include "AliMUONLogger.h" |
4ce497c4 | 29 | #include "AliMUONTriggerEfficiencyCells.h" |
4f8a3d8b | 30 | #include "AliMUONTriggerElectronics.h" |
40e382ae | 31 | #include "AliMUONTriggerStoreV1.h" |
05314992 | 32 | #include "AliMUONVCalibParam.h" |
40e382ae | 33 | #include "AliMUONVDigitStore.h" |
88544f7e | 34 | #include "AliMpCDB.h" |
40e382ae | 35 | #include "AliMpCathodType.h" |
36 | #include "AliMpConstants.h" | |
4ce497c4 | 37 | #include "AliMpDEIterator.h" |
92aeef15 | 38 | #include "AliMpDEManager.h" |
4ce497c4 | 39 | #include "AliMpIntPair.h" |
40 | #include "AliMpPad.h" | |
9265505b | 41 | #include "AliMpSegmentation.h" |
40e382ae | 42 | #include "AliMpStationType.h" |
4ce497c4 | 43 | #include "AliMpVSegmentation.h" |
92aeef15 | 44 | #include "AliRun.h" |
45 | #include "AliRunDigitizer.h" | |
46 | #include "AliRunLoader.h" | |
866c3232 | 47 | #include <Riostream.h> |
48 | #include <TF1.h> | |
40e382ae | 49 | #include <TFile.h> |
866c3232 | 50 | #include <TMath.h> |
51 | #include <TRandom.h> | |
52 | #include <TString.h> | |
40e382ae | 53 | #include <TSystem.h> |
54 | ||
8c0b5e70 | 55 | #include "AliMUONGeometryTransformer.h" //ADDED for trigger noise |
3d1463c8 | 56 | |
57 | //----------------------------------------------------------------------------- | |
9265505b | 58 | /// \class AliMUONDigitizerV3 |
4ce497c4 | 59 | /// The digitizer is performing the transformation to go from SDigits (digits |
60 | /// w/o any electronic noise) to Digits (w/ electronic noise, and decalibration) | |
61 | /// | |
62 | /// The decalibration is performed by doing the reverse operation of the | |
63 | /// calibration, that is we do (Signal+pedestal)/gain -> ADC | |
64 | /// | |
65 | /// Note also that the digitizer takes care of merging sdigits that belongs | |
66 | /// to the same pad, either because we're merging several input sdigit files | |
67 | /// or with a single file because the sdigitizer does not merge sdigits itself | |
68 | /// (for performance reason mainly, and because anyway we know we have to do it | |
69 | /// here, at the digitization level). | |
70 | /// | |
c4ee792d | 71 | /// \author Laurent Aphecetche |
3d1463c8 | 72 | //----------------------------------------------------------------------------- |
4ce497c4 | 73 | |
74 | namespace | |
75 | { | |
76 | AliMUON* muon() | |
77 | { | |
78 | return static_cast<AliMUON*>(gAlice->GetModule("MUON")); | |
79 | } | |
8c0b5e70 | 80 | |
81 | //ADDED for trigger noise | |
82 | const AliMUONGeometryTransformer* GetTransformer() | |
83 | { | |
84 | return muon()->GetGeometryTransformer(); | |
85 | } | |
4ce497c4 | 86 | } |
87 | ||
88 | const Double_t AliMUONDigitizerV3::fgkNSigmas=3; | |
89 | ||
9265505b | 90 | /// \cond CLASSIMP |
92aeef15 | 91 | ClassImp(AliMUONDigitizerV3) |
9265505b | 92 | /// \endcond |
92aeef15 | 93 | |
94 | //_____________________________________________________________________________ | |
95 | AliMUONDigitizerV3::AliMUONDigitizerV3(AliRunDigitizer* manager, | |
8c0b5e70 | 96 | Int_t generateNoisyDigits) |
92aeef15 | 97 | : AliDigitizer(manager), |
92aeef15 | 98 | fIsInitialized(kFALSE), |
92aeef15 | 99 | fCalibrationData(0x0), |
100 | fTriggerProcessor(0x0), | |
4ce497c4 | 101 | fTriggerEfficiency(0x0), |
102 | fNoiseFunction(0x0), | |
8c0b5e70 | 103 | fNoiseFunctionTrig(0x0), |
ad26d4f6 | 104 | fGenerateNoisyDigits(generateNoisyDigits), |
40e382ae | 105 | fLogger(new AliMUONLogger(1000)), |
106 | fTriggerStore(new AliMUONTriggerStoreV1), | |
107 | fDigitStore(0x0), | |
108 | fOutputDigitStore(0x0) | |
92aeef15 | 109 | { |
9265505b | 110 | /// Ctor. |
111 | ||
92aeef15 | 112 | AliDebug(1,Form("AliRunDigitizer=%p",fManager)); |
113 | } | |
114 | ||
115 | //_____________________________________________________________________________ | |
116 | AliMUONDigitizerV3::~AliMUONDigitizerV3() | |
117 | { | |
9265505b | 118 | /// Dtor. Note we're the owner of some pointers. |
119 | ||
92aeef15 | 120 | AliDebug(1,"dtor"); |
4ce497c4 | 121 | |
92aeef15 | 122 | delete fCalibrationData; |
123 | delete fTriggerProcessor; | |
4ce497c4 | 124 | delete fNoiseFunction; |
8c0b5e70 | 125 | delete fNoiseFunctionTrig; |
40e382ae | 126 | delete fTriggerStore; |
127 | delete fDigitStore; | |
128 | delete fOutputDigitStore; | |
b74ca120 | 129 | |
ad26d4f6 | 130 | AliInfo("Summary of messages"); |
131 | fLogger->Print(); | |
4ce497c4 | 132 | |
ad26d4f6 | 133 | delete fLogger; |
92aeef15 | 134 | } |
135 | ||
136 | //_____________________________________________________________________________ | |
137 | void | |
40e382ae | 138 | AliMUONDigitizerV3::ApplyResponseToTrackerDigit(AliMUONVDigit& digit, Bool_t addNoise) |
92aeef15 | 139 | { |
9265505b | 140 | /// For tracking digits, starting from an ideal digit's charge, we : |
141 | /// | |
cf27231a | 142 | /// - "divide" by a gain (thus decalibrating the digit) |
9265505b | 143 | /// - add a pedestal (thus decalibrating the digit) |
b74ca120 | 144 | /// - add some electronics noise (thus leading to a realistic adc), if requested to do so |
9265505b | 145 | /// - sets the signal to zero if below 3*sigma of the noise |
59b91539 | 146 | |
cf27231a | 147 | Float_t charge = digit.Charge(); |
148 | ||
149 | // We set the charge to 0, as the only relevant piece of information | |
150 | // after Digitization is the ADC value. | |
151 | digit.SetCharge(0); | |
b74ca120 | 152 | |
4ce497c4 | 153 | Int_t detElemId = digit.DetElemId(); |
92aeef15 | 154 | Int_t manuId = digit.ManuId(); |
92aeef15 | 155 | |
4ce497c4 | 156 | AliMUONVCalibParam* pedestal = fCalibrationData->Pedestals(detElemId,manuId); |
92aeef15 | 157 | if (!pedestal) |
ad26d4f6 | 158 | { |
159 | fLogger->Log(Form("%s:%d:Could not get pedestal for DE=%4d manuId=%4d. Disabling.", | |
160 | __FILE__,__LINE__, | |
161 | detElemId,manuId)); | |
ad26d4f6 | 162 | digit.SetADC(0); |
163 | return; | |
164 | } | |
59b91539 | 165 | |
4ce497c4 | 166 | AliMUONVCalibParam* gain = fCalibrationData->Gains(detElemId,manuId); |
92aeef15 | 167 | if (!gain) |
ad26d4f6 | 168 | { |
169 | fLogger->Log(Form("%s:%d:Could not get gain for DE=%4d manuId=%4d. Disabling.", | |
170 | __FILE__,__LINE__, | |
171 | detElemId,manuId)); | |
ad26d4f6 | 172 | digit.SetADC(0); |
173 | return; | |
174 | } | |
cf27231a | 175 | |
b74ca120 | 176 | Int_t manuChannel = digit.ManuChannel(); |
ad26d4f6 | 177 | |
cf27231a | 178 | |
59b91539 | 179 | |
b74ca120 | 180 | Int_t adc = DecalibrateTrackerDigit(*pedestal,*gain,manuChannel,charge,addNoise); |
59b91539 | 181 | |
92aeef15 | 182 | digit.SetADC(adc); |
183 | } | |
184 | ||
4ce497c4 | 185 | //_____________________________________________________________________________ |
186 | void | |
40e382ae | 187 | AliMUONDigitizerV3::ApplyResponseToTriggerDigit(const AliMUONVDigitStore& digitStore, |
188 | AliMUONVDigit& digit) | |
4ce497c4 | 189 | { |
9265505b | 190 | /// \todo add comment |
191 | ||
4ce497c4 | 192 | if ( !fTriggerEfficiency ) return; |
193 | ||
ad26d4f6 | 194 | if (digit.IsEfficiencyApplied()) return; |
4ce497c4 | 195 | |
40e382ae | 196 | AliMUONVDigit* correspondingDigit = FindCorrespondingDigit(digitStore,digit); |
ad26d4f6 | 197 | |
198 | if (!correspondingDigit) return; //reject bad correspondences | |
a0dc51a6 | 199 | |
4ce497c4 | 200 | Int_t detElemId = digit.DetElemId(); |
9265505b | 201 | |
202 | AliMpSegmentation* segmentation = AliMpSegmentation::Instance(); | |
4ce497c4 | 203 | const AliMpVSegmentation* segment[2] = |
204 | { | |
866c3232 | 205 | segmentation->GetMpSegmentation(detElemId,AliMp::GetCathodType(digit.Cathode())), |
206 | segmentation->GetMpSegmentation(detElemId,AliMp::GetCathodType(correspondingDigit->Cathode())) | |
4ce497c4 | 207 | }; |
208 | ||
209 | AliMpPad pad[2] = | |
210 | { | |
211 | segment[0]->PadByIndices(AliMpIntPair(digit.PadX(),digit.PadY()),kTRUE), | |
212 | segment[1]->PadByIndices(AliMpIntPair(correspondingDigit->PadX(),correspondingDigit->PadY()),kTRUE) | |
213 | }; | |
214 | ||
081d3361 | 215 | Int_t p0(1); |
ad26d4f6 | 216 | if (digit.Cathode()==0) p0=0; |
081d3361 | 217 | |
218 | AliMpIntPair location = pad[p0].GetLocation(0); | |
219 | Int_t nboard = location.GetFirst(); | |
4ce497c4 | 220 | |
4ce497c4 | 221 | Bool_t isTrig[2]; |
081d3361 | 222 | |
8c0b5e70 | 223 | fTriggerEfficiency->IsTriggered(detElemId, nboard, |
4ce497c4 | 224 | isTrig[0], isTrig[1]); |
ad26d4f6 | 225 | digit.EfficiencyApplied(kTRUE); |
226 | correspondingDigit->EfficiencyApplied(kTRUE); | |
081d3361 | 227 | |
4ce497c4 | 228 | if (!isTrig[digit.Cathode()]) |
229 | { | |
40e382ae | 230 | digit.SetCharge(0); |
4ce497c4 | 231 | } |
232 | ||
233 | if ( &digit != correspondingDigit ) | |
234 | { | |
235 | if (!isTrig[correspondingDigit->Cathode()]) | |
236 | { | |
40e382ae | 237 | correspondingDigit->SetCharge(0); |
4ce497c4 | 238 | } |
239 | } | |
240 | } | |
241 | ||
92aeef15 | 242 | //_____________________________________________________________________________ |
243 | void | |
40e382ae | 244 | AliMUONDigitizerV3::ApplyResponse(const AliMUONVDigitStore& store, |
245 | AliMUONVDigitStore& filteredStore) | |
92aeef15 | 246 | { |
9265505b | 247 | /// Loop over all chamber digits, and apply the response to them |
248 | /// Note that this method may remove digits. | |
249 | ||
40e382ae | 250 | filteredStore.Clear(); |
251 | ||
4ce497c4 | 252 | const Bool_t kAddNoise = kTRUE; |
253 | ||
40e382ae | 254 | TIter next(store.CreateIterator()); |
255 | AliMUONVDigit* digit; | |
256 | ||
257 | while ( ( digit = static_cast<AliMUONVDigit*>(next()) ) ) | |
4ce497c4 | 258 | { |
40e382ae | 259 | AliMp::StationType stationType = AliMpDEManager::GetStationType(digit->DetElemId()); |
260 | ||
261 | if ( stationType != AliMp::kStationTrigger ) | |
92aeef15 | 262 | { |
40e382ae | 263 | ApplyResponseToTrackerDigit(*digit,kAddNoise); |
92aeef15 | 264 | } |
40e382ae | 265 | else |
92aeef15 | 266 | { |
40e382ae | 267 | ApplyResponseToTriggerDigit(store,*digit); |
268 | } | |
cf27231a | 269 | if ( digit->ADC() > 0 || digit->Charge() > 0 ) |
40e382ae | 270 | { |
271 | filteredStore.Add(*digit,AliMUONVDigitStore::kIgnore); | |
92aeef15 | 272 | } |
92aeef15 | 273 | } |
40e382ae | 274 | } |
92aeef15 | 275 | |
b74ca120 | 276 | //_____________________________________________________________________________ |
277 | Int_t | |
278 | AliMUONDigitizerV3::DecalibrateTrackerDigit(const AliMUONVCalibParam& pedestals, | |
279 | const AliMUONVCalibParam& gains, | |
280 | Int_t channel, | |
281 | Float_t charge, | |
282 | Bool_t addNoise) | |
283 | { | |
284 | /// Decalibrate (i.e. go from charge to adc) a tracker digit, given its | |
285 | /// pedestal and gain parameters. | |
286 | /// Must insure before calling that channel is valid (i.e. between 0 and | |
287 | /// pedestals or gains->GetSize()-1, but also corresponding to a valid channel | |
288 | /// otherwise results are not predictible...) | |
289 | ||
290 | static const Int_t kMaxADC = (1<<12)-1; // We code the charge on a 12 bits ADC. | |
291 | ||
292 | Float_t pedestalMean = pedestals.ValueAsFloat(channel,0); | |
293 | Float_t pedestalSigma = pedestals.ValueAsFloat(channel,1); | |
294 | ||
295 | Float_t a0 = gains.ValueAsFloat(channel,0); | |
296 | Float_t a1 = gains.ValueAsFloat(channel,1); | |
297 | Int_t thres = gains.ValueAsInt(channel,2); | |
298 | Int_t qual = gains.ValueAsInt(channel,3); | |
299 | if ( qual <= 0 ) return 0; | |
300 | ||
301 | Float_t chargeThres = a0*thres; | |
302 | ||
303 | Float_t padc(0); // (adc - ped) value | |
304 | ||
305 | if ( charge <= chargeThres || TMath::Abs(a1) < 1E-12 ) | |
306 | { | |
307 | // linear part only | |
308 | ||
309 | if ( TMath::Abs(a0) > 1E-12 ) | |
310 | { | |
311 | padc = charge/a0; | |
312 | } | |
313 | } | |
314 | else | |
315 | { | |
316 | // linear + parabolic part | |
317 | Double_t qt = chargeThres - charge; | |
318 | Double_t delta = a0*a0-4*a1*qt; | |
319 | if ( delta < 0 ) | |
320 | { | |
321 | AliErrorClass(Form("delta=%e DE %d Manu %d Channel %d " | |
322 | " charge %e a0 %e a1 %e thres %d ped %e pedsig %e", | |
323 | delta,pedestals.ID0(),pedestals.ID1(), | |
324 | channel, charge, a0, a1, thres, pedestalMean, | |
325 | pedestalSigma)); | |
326 | } | |
327 | else | |
328 | { | |
329 | delta = TMath::Sqrt(delta); | |
330 | ||
331 | padc = ( ( -a0 + delta ) > 0 ? ( -a0 + delta ) : ( -a0 - delta ) ); | |
332 | ||
333 | padc /= 2*a1; | |
334 | ||
335 | if ( padc < 0 ) | |
336 | { | |
337 | if ( TMath::Abs(padc) > 1E-3) | |
338 | { | |
339 | // this is more than a precision problem : let's signal it ! | |
340 | AliErrorClass(Form("padc=%e DE %d Manu %d Channel %d " | |
341 | " charge %e a0 %e a1 %e thres %d ped %e pedsig %e delta %e", | |
342 | padc,pedestals.ID0(),pedestals.ID1(), | |
343 | channel, charge, a0, a1, thres, pedestalMean, | |
344 | pedestalSigma,delta)); | |
345 | } | |
346 | ||
347 | // ok. consider we're just at thres, let it be zero. | |
348 | padc = 0; | |
349 | } | |
350 | ||
351 | padc += thres; | |
352 | ||
353 | } | |
354 | } | |
355 | ||
356 | Int_t adc(0); | |
357 | ||
358 | if ( padc > 0 ) | |
359 | { | |
360 | Float_t adcNoise = 0.0; | |
361 | ||
362 | if ( addNoise ) adcNoise = gRandom->Gaus(0.0,pedestalSigma); | |
363 | ||
364 | adc = TMath::Nint(padc + pedestalMean + adcNoise); | |
365 | } | |
366 | ||
367 | // be sure we stick to 12 bits. | |
368 | if ( adc > kMaxADC ) | |
369 | { | |
370 | adc = kMaxADC; | |
371 | } | |
372 | ||
373 | return adc; | |
374 | } | |
375 | ||
92aeef15 | 376 | //_____________________________________________________________________________ |
377 | void | |
378 | AliMUONDigitizerV3::Exec(Option_t*) | |
379 | { | |
9265505b | 380 | /// Main method. |
381 | /// We first loop over input files, and merge the sdigits we found there. | |
382 | /// Second, we digitize all the resulting sdigits | |
383 | /// Then we generate noise-only digits (for tracker only) | |
384 | /// And we finally generate the trigger outputs. | |
4ce497c4 | 385 | |
b74ca120 | 386 | AliCodeTimerAuto("") |
387 | ||
92aeef15 | 388 | AliDebug(1, "Running digitizer."); |
389 | ||
390 | if ( fManager->GetNinputs() == 0 ) | |
391 | { | |
392 | AliWarning("No input set. Nothing to do."); | |
393 | return; | |
394 | } | |
395 | ||
396 | if ( !fIsInitialized ) | |
397 | { | |
398 | AliError("Not initialized. Cannot perform the work. Sorry"); | |
399 | return; | |
400 | } | |
401 | ||
402 | Int_t nInputFiles = fManager->GetNinputs(); | |
403 | ||
40e382ae | 404 | AliLoader* outputLoader = GetLoader(fManager->GetOutputFolderName()); |
405 | ||
406 | outputLoader->MakeDigitsContainer(); | |
407 | ||
408 | TTree* oTreeD = outputLoader->TreeD(); | |
409 | ||
410 | if (!oTreeD) | |
92aeef15 | 411 | { |
40e382ae | 412 | AliFatal("Cannot create output TreeD"); |
92aeef15 | 413 | } |
40e382ae | 414 | |
92aeef15 | 415 | // Loop over all the input files, and merge the sdigits found in those |
416 | // files. | |
40e382ae | 417 | |
92aeef15 | 418 | for ( Int_t iFile = 0; iFile < nInputFiles; ++iFile ) |
419 | { | |
40e382ae | 420 | AliLoader* inputLoader = GetLoader(fManager->GetInputFolderName(iFile)); |
421 | ||
422 | inputLoader->LoadSDigits("READ"); | |
423 | ||
424 | TTree* iTreeS = inputLoader->TreeS(); | |
425 | if (!iTreeS) | |
92aeef15 | 426 | { |
427 | AliFatal(Form("Could not get access to input file #%d",iFile)); | |
428 | } | |
40e382ae | 429 | |
430 | AliMUONVDigitStore* inputStore = AliMUONVDigitStore::Create(*iTreeS); | |
431 | inputStore->Connect(*iTreeS); | |
432 | ||
433 | iTreeS->GetEvent(0); | |
434 | ||
435 | MergeWithSDigits(fDigitStore,*inputStore,fManager->GetMask(iFile)); | |
05314992 | 436 | |
40e382ae | 437 | inputLoader->UnloadSDigits(); |
05314992 | 438 | |
40e382ae | 439 | delete inputStore; |
92aeef15 | 440 | } |
441 | ||
442 | // At this point, we do have digit arrays (one per chamber) which contains | |
443 | // the merging of all the sdigits of the input file(s). | |
444 | // We now massage them to apply the detector response, i.e. this | |
445 | // is here that we do the "digitization" work. | |
446 | ||
40e382ae | 447 | if (!fOutputDigitStore) |
448 | { | |
449 | fOutputDigitStore = fDigitStore->Create(); | |
450 | } | |
451 | ||
8c0b5e70 | 452 | if ( fGenerateNoisyDigits>=2 ) |
453 | { | |
454 | // Generate noise-only digits for trigger. | |
455 | GenerateNoisyDigitsForTrigger(*fDigitStore); | |
456 | } | |
457 | ||
40e382ae | 458 | ApplyResponse(*fDigitStore,*fOutputDigitStore); |
4ce497c4 | 459 | |
460 | if ( fGenerateNoisyDigits ) | |
461 | { | |
462 | // Generate noise-only digits for tracker. | |
40e382ae | 463 | GenerateNoisyDigits(*fOutputDigitStore); |
4ce497c4 | 464 | } |
465 | ||
92aeef15 | 466 | // We generate the global and local trigger decisions. |
40e382ae | 467 | fTriggerProcessor->Digits2Trigger(*fOutputDigitStore,*fTriggerStore); |
468 | ||
469 | // Prepare output tree | |
470 | Bool_t okD = fOutputDigitStore->Connect(*oTreeD,kFALSE); | |
471 | Bool_t okT = fTriggerStore->Connect(*oTreeD,kFALSE); | |
472 | if (!okD || !okT) | |
473 | { | |
474 | AliError(Form("Could not make branch : Digit %d Trigger %d",okD,okT)); | |
475 | return; | |
476 | } | |
92aeef15 | 477 | |
478 | // Fill the output treeD | |
40e382ae | 479 | oTreeD->Fill(); |
92aeef15 | 480 | |
481 | // Write to the output tree(D). | |
482 | // Please note that as GlobalTrigger, LocalTrigger and Digits are in the same | |
483 | // tree (=TreeD) in different branches, this WriteDigits in fact writes all of | |
484 | // the 3 branches. | |
40e382ae | 485 | outputLoader->WriteDigits("OVERWRITE"); |
92aeef15 | 486 | |
40e382ae | 487 | outputLoader->UnloadDigits(); |
4ce497c4 | 488 | |
40e382ae | 489 | // Finally, we clean up after ourselves. |
490 | fTriggerStore->Clear(); | |
491 | fDigitStore->Clear(); | |
492 | fOutputDigitStore->Clear(); | |
92aeef15 | 493 | } |
494 | ||
4ce497c4 | 495 | //_____________________________________________________________________________ |
40e382ae | 496 | AliMUONVDigit* |
497 | AliMUONDigitizerV3::FindCorrespondingDigit(const AliMUONVDigitStore& digitStore, | |
498 | AliMUONVDigit& digit) const | |
4ce497c4 | 499 | { |
ad26d4f6 | 500 | /// Find, if it exists, the digit corresponding to digit.Hit(), in the |
501 | /// other cathode | |
9265505b | 502 | |
b74ca120 | 503 | AliCodeTimerAuto("") |
504 | ||
40e382ae | 505 | TIter next(digitStore.CreateIterator()); |
506 | AliMUONVDigit* d; | |
507 | ||
508 | while ( ( d = static_cast<AliMUONVDigit*>(next()) ) ) | |
4ce497c4 | 509 | { |
40e382ae | 510 | if ( d->DetElemId() == digit.DetElemId() && |
ad26d4f6 | 511 | d->Hit() == digit.Hit() && |
512 | d->Cathode() != digit.Cathode() ) | |
4ce497c4 | 513 | { |
ad26d4f6 | 514 | return d; |
515 | } | |
516 | } | |
4ce497c4 | 517 | return 0x0; |
518 | } | |
519 | ||
520 | ||
4ce497c4 | 521 | //_____________________________________________________________________________ |
522 | void | |
40e382ae | 523 | AliMUONDigitizerV3::GenerateNoisyDigits(AliMUONVDigitStore& digitStore) |
4ce497c4 | 524 | { |
9265505b | 525 | /// According to a given probability, generate digits that |
526 | /// have a signal above the noise cut (ped+n*sigma_ped), i.e. digits | |
527 | /// that are "only noise". | |
4ce497c4 | 528 | |
b74ca120 | 529 | AliCodeTimerAuto("") |
530 | ||
4ce497c4 | 531 | if ( !fNoiseFunction ) |
532 | { | |
533 | fNoiseFunction = new TF1("AliMUONDigitizerV3::fNoiseFunction","gaus", | |
534 | fgkNSigmas,fgkNSigmas*10); | |
535 | ||
536 | fNoiseFunction->SetParameters(1,0,1); | |
537 | } | |
538 | ||
4ce497c4 | 539 | for ( Int_t i = 0; i < AliMUONConstants::NTrackingCh(); ++i ) |
540 | { | |
541 | AliMpDEIterator it; | |
542 | ||
543 | it.First(i); | |
544 | ||
545 | while ( !it.IsDone() ) | |
546 | { | |
547 | for ( Int_t cathode = 0; cathode < 2; ++cathode ) | |
548 | { | |
40e382ae | 549 | GenerateNoisyDigitsForOneCathode(digitStore,it.CurrentDEId(),cathode); |
4ce497c4 | 550 | } |
551 | it.Next(); | |
552 | } | |
553 | } | |
4ce497c4 | 554 | } |
555 | ||
556 | //_____________________________________________________________________________ | |
557 | void | |
40e382ae | 558 | AliMUONDigitizerV3::GenerateNoisyDigitsForOneCathode(AliMUONVDigitStore& digitStore, |
559 | Int_t detElemId, Int_t cathode) | |
4ce497c4 | 560 | { |
9265505b | 561 | /// Generate noise-only digits for one cathode of one detection element. |
562 | /// Called by GenerateNoisyDigits() | |
4ce497c4 | 563 | |
9265505b | 564 | const AliMpVSegmentation* seg |
866c3232 | 565 | = AliMpSegmentation::Instance()->GetMpSegmentation(detElemId,AliMp::GetCathodType(cathode)); |
4ce497c4 | 566 | Int_t nofPads = seg->NofPads(); |
567 | ||
568 | Int_t maxIx = seg->MaxPadIndexX(); | |
569 | Int_t maxIy = seg->MaxPadIndexY(); | |
570 | ||
cdea095e | 571 | static const Double_t kProbToBeOutsideNsigmas = TMath::Erfc(fgkNSigmas/TMath::Sqrt(2.0)) / 2. ; |
4ce497c4 | 572 | |
84aac932 | 573 | Int_t nofNoisyPads = TMath::Nint(kProbToBeOutsideNsigmas*nofPads); |
4ce497c4 | 574 | if ( !nofNoisyPads ) return; |
575 | ||
576 | nofNoisyPads = | |
577 | TMath::Nint(gRandom->Gaus(nofNoisyPads, | |
578 | nofNoisyPads/TMath::Sqrt(nofNoisyPads))); | |
579 | ||
580 | AliDebug(3,Form("DE %d cath %d nofNoisyPads %d",detElemId,cathode,nofNoisyPads)); | |
581 | ||
40e382ae | 582 | for ( Int_t i = 0; i < nofNoisyPads; ++i ) |
4ce497c4 | 583 | { |
584 | Int_t ix(-1); | |
585 | Int_t iy(-1); | |
40e382ae | 586 | AliMpPad pad; |
587 | ||
4ce497c4 | 588 | do { |
589 | ix = gRandom->Integer(maxIx+1); | |
590 | iy = gRandom->Integer(maxIy+1); | |
40e382ae | 591 | pad = seg->PadByIndices(AliMpIntPair(ix,iy),kFALSE); |
592 | } while ( !pad.IsValid() ); | |
593 | ||
4ce497c4 | 594 | Int_t manuId = pad.GetLocation().GetFirst(); |
40e382ae | 595 | Int_t manuChannel = pad.GetLocation().GetSecond(); |
596 | ||
4ce497c4 | 597 | AliMUONVCalibParam* pedestals = fCalibrationData->Pedestals(detElemId,manuId); |
598 | ||
ad26d4f6 | 599 | if (!pedestals) |
600 | { | |
601 | // no pedestal available for this channel, simply give up | |
40e382ae | 602 | continue; |
ad26d4f6 | 603 | } |
604 | ||
40e382ae | 605 | AliMUONVDigit* d = digitStore.CreateDigit(detElemId,manuId,manuChannel,cathode); |
606 | ||
607 | d->SetPadXY(ix,iy); | |
608 | ||
4ce497c4 | 609 | Float_t pedestalMean = pedestals->ValueAsFloat(manuChannel,0); |
610 | Float_t pedestalSigma = pedestals->ValueAsFloat(manuChannel,1); | |
611 | ||
612 | Double_t ped = fNoiseFunction->GetRandom()*pedestalSigma; | |
59b91539 | 613 | |
40e382ae | 614 | d->SetCharge(TMath::Nint(ped+pedestalMean+0.5)); |
615 | d->NoiseOnly(kTRUE); | |
616 | ApplyResponseToTrackerDigit(*d,kFALSE); | |
cf27231a | 617 | if ( d->ADC() > 0 ) |
4ce497c4 | 618 | { |
40e382ae | 619 | Bool_t ok = digitStore.Add(*d,AliMUONVDigitStore::kDeny); |
620 | // this can happen (that we randomly chose a digit that is | |
621 | // already there). We simply ignore this, but log the occurence | |
622 | // to cross-check that it's not too frequent. | |
623 | if (!ok) | |
624 | { | |
625 | fLogger->Log("Collision while adding noiseOnly digit"); | |
626 | } | |
627 | else | |
628 | { | |
629 | fLogger->Log("Added noiseOnly digit"); | |
630 | } | |
4ce497c4 | 631 | } |
632 | else | |
633 | { | |
634 | AliError("Pure noise below threshold. This should not happen. Not adding " | |
635 | "this digit."); | |
636 | } | |
40e382ae | 637 | delete d; |
4ce497c4 | 638 | } |
639 | } | |
640 | ||
8c0b5e70 | 641 | |
642 | //_____________________________________________________________________________ | |
643 | void | |
644 | AliMUONDigitizerV3::GenerateNoisyDigitsForTrigger(AliMUONVDigitStore& digitStore) | |
645 | { | |
646 | /// Generate noise-only digits for one cathode of one detection element. | |
647 | /// Called by GenerateNoisyDigits() | |
648 | ||
649 | if ( !fNoiseFunctionTrig ) | |
650 | { | |
651 | fNoiseFunctionTrig = new TF1("AliMUONDigitizerV3::fNoiseFunctionTrig","landau", | |
652 | 50.,270.); | |
653 | ||
654 | fNoiseFunctionTrig->SetParameters(3.91070e+02, 9.85026, 9.35881e-02); | |
655 | } | |
656 | ||
657 | AliMpPad pad[2]; | |
658 | AliMUONVDigit *d[2]={0x0}; | |
659 | ||
660 | for ( Int_t chamberId = AliMUONConstants::NTrackingCh(); chamberId < AliMUONConstants::NCh(); ++chamberId ) | |
661 | { | |
662 | ||
663 | Int_t nofNoisyPads = 50; | |
664 | ||
665 | Float_t r=-1, fi = 0., gx, gy, x, y, z, xg01, yg01, zg, xg02, yg02; | |
666 | AliMpDEIterator it; | |
667 | ||
668 | AliDebug(3,Form("Chamber %d nofNoisyPads %d",chamberId,nofNoisyPads)); | |
669 | ||
670 | for ( Int_t i = 0; i < nofNoisyPads; ++i ) | |
671 | { | |
672 | //printf("Generating noise %i\n",i); | |
673 | Int_t ix(-1); | |
674 | Int_t iy(-1); | |
675 | Bool_t isOk = kFALSE; | |
676 | Int_t detElemId = -1; | |
677 | do { | |
678 | //r = gRandom->Landau(9.85026, 9.35881e-02); | |
679 | r = fNoiseFunctionTrig->GetRandom(); | |
680 | fi = 2. * TMath::Pi() * gRandom->Rndm(); | |
681 | //printf("r = %f\tfi = %f\n", r, fi); | |
682 | gx = r * TMath::Cos(fi); | |
683 | gy = r * TMath::Sin(fi); | |
684 | ||
685 | for ( it.First(chamberId); ! it.IsDone(); it.Next() ){ | |
686 | Int_t currDetElemId = it.CurrentDEId(); | |
687 | const AliMpVSegmentation* seg | |
688 | = AliMpSegmentation::Instance()->GetMpSegmentation(currDetElemId,AliMp::GetCathodType(0)); | |
689 | if (!seg) continue; | |
690 | Float_t deltax = seg->Dimensions().X(); | |
691 | Float_t deltay = seg->Dimensions().Y(); | |
692 | GetTransformer()->Local2Global(currDetElemId, -deltax, -deltay, 0, xg01, yg01, zg); | |
693 | GetTransformer()->Local2Global(currDetElemId, deltax, deltay, 0, xg02, yg02, zg); | |
694 | Float_t xg1 = xg01, xg2 = xg02, yg1 = yg01, yg2 = yg02; | |
695 | if(xg01>xg02){ | |
696 | xg1 = xg02; | |
697 | xg2 = xg01; | |
698 | } | |
699 | if(yg01>yg02){ | |
700 | yg1 = yg02; | |
701 | yg2 = yg01; | |
702 | } | |
703 | if(gx>=xg1 && gx<=xg2 && gy>=yg1 && gy<=yg2){ | |
704 | detElemId = currDetElemId; | |
705 | GetTransformer()->Global2Local(detElemId, gx, gy, 0, x, y, z); | |
706 | pad[0] = seg->PadByPosition(TVector2(x,y),kFALSE); | |
707 | if(!pad[0].IsValid()) continue; | |
708 | isOk = kTRUE; | |
709 | break; | |
710 | } | |
711 | } // loop on slats | |
712 | } while ( !isOk ); | |
713 | ||
714 | const AliMpVSegmentation* seg1 | |
715 | = AliMpSegmentation::Instance()->GetMpSegmentation(detElemId,AliMp::GetCathodType(1)); | |
716 | pad[1] = seg1->PadByPosition(TVector2(x,y),kFALSE); | |
717 | ||
718 | for ( Int_t cathode = 0; cathode < 2; ++cathode ){ | |
719 | Int_t manuId = pad[cathode].GetLocation(0).GetFirst(); | |
720 | Int_t manuChannel = pad[cathode].GetLocation(0).GetSecond(); | |
721 | d[cathode] = digitStore.CreateDigit(detElemId,manuId,manuChannel,cathode); | |
722 | ix = pad[cathode].GetIndices().GetFirst(); | |
723 | iy = pad[cathode].GetIndices().GetSecond(); | |
724 | d[cathode]->SetPadXY(ix,iy); | |
725 | //d[cathode].SetSignal(1); | |
726 | //d[cathode].SetPhysicsSignal(0); | |
727 | d[cathode]->SetCharge(1); | |
728 | d[cathode]->NoiseOnly(kTRUE); | |
729 | AliDebug(3,Form("Adding a pure noise digit :")); | |
730 | ||
731 | Bool_t ok = digitStore.Add(*d[cathode],AliMUONVDigitStore::kDeny); | |
732 | if (!ok) | |
733 | { | |
734 | fLogger->Log("Collision while adding TriggerNoise digit"); | |
735 | } | |
736 | else | |
737 | { | |
738 | fLogger->Log("Added triggerNoise digit"); | |
739 | } | |
740 | } //loop on cathodes | |
741 | } // loop on noisy pads | |
742 | } // loop on chambers | |
743 | } | |
744 | ||
745 | ||
92aeef15 | 746 | //_____________________________________________________________________________ |
40e382ae | 747 | AliLoader* |
748 | AliMUONDigitizerV3::GetLoader(const TString& folderName) | |
92aeef15 | 749 | { |
40e382ae | 750 | /// Get a MUON loader |
9265505b | 751 | |
ad26d4f6 | 752 | AliDebug(2,Form("Getting access to folder %s",folderName.Data())); |
40e382ae | 753 | AliLoader* loader = AliRunLoader::GetDetectorLoader("MUON",folderName.Data()); |
92aeef15 | 754 | if (!loader) |
755 | { | |
756 | AliError(Form("Could not get MuonLoader from folder %s",folderName.Data())); | |
757 | return 0x0; | |
758 | } | |
40e382ae | 759 | return loader; |
92aeef15 | 760 | } |
761 | ||
762 | //_____________________________________________________________________________ | |
763 | Bool_t | |
764 | AliMUONDigitizerV3::Init() | |
765 | { | |
9265505b | 766 | /// Initialization of the TTask : |
40e382ae | 767 | /// a) create the calibrationData, according to run number |
768 | /// b) create the trigger processing task | |
9265505b | 769 | |
ad26d4f6 | 770 | AliDebug(2,""); |
92aeef15 | 771 | |
772 | if ( fIsInitialized ) | |
773 | { | |
774 | AliError("Object already initialized."); | |
775 | return kFALSE; | |
776 | } | |
777 | ||
778 | if (!fManager) | |
779 | { | |
780 | AliError("fManager is null !"); | |
781 | return kFALSE; | |
782 | } | |
783 | ||
ad26d4f6 | 784 | Int_t runnumber = AliCDBManager::Instance()->GetRun(); |
92aeef15 | 785 | |
88544f7e | 786 | if ( ! AliMpCDB::LoadMpSegmentation() ) |
787 | { | |
788 | AliFatal("Could not access mapping from OCDB !"); | |
789 | } | |
790 | ||
791 | if ( ! AliMpCDB::LoadDDLStore() ) | |
792 | { | |
793 | AliFatal("Could not access DDL Store from OCDB !"); | |
794 | } | |
795 | ||
92aeef15 | 796 | fCalibrationData = new AliMUONCalibrationData(runnumber); |
ad26d4f6 | 797 | if ( !fCalibrationData->Pedestals() ) |
798 | { | |
799 | AliFatal("Could not access pedestals from OCDB !"); | |
800 | } | |
801 | if ( !fCalibrationData->Gains() ) | |
802 | { | |
803 | AliFatal("Could not access gains from OCDB !"); | |
804 | } | |
40e382ae | 805 | fTriggerProcessor = new AliMUONTriggerElectronics(fCalibrationData); |
4ce497c4 | 806 | |
afb3ccf0 | 807 | if ( muon()->GetTriggerEffCells() ) |
4ce497c4 | 808 | { |
809 | fTriggerEfficiency = fCalibrationData->TriggerEfficiency(); | |
810 | if ( fTriggerEfficiency ) | |
811 | { | |
a7b01aa5 | 812 | AliDebug(1, "Will apply trigger efficiency"); |
4ce497c4 | 813 | } |
814 | else | |
815 | { | |
ad26d4f6 | 816 | AliFatal("I was requested to apply trigger efficiency, but I could " |
4ce497c4 | 817 | "not get it !"); |
818 | } | |
819 | } | |
820 | ||
ad26d4f6 | 821 | AliDebug(1, Form("Will %s generate noise-only digits for tracker", |
822 | (fGenerateNoisyDigits ? "":"NOT"))); | |
823 | ||
92aeef15 | 824 | fIsInitialized = kTRUE; |
825 | return kTRUE; | |
826 | } | |
827 | ||
92aeef15 | 828 | //_____________________________________________________________________________ |
829 | void | |
40e382ae | 830 | AliMUONDigitizerV3::MergeWithSDigits(AliMUONVDigitStore*& outputStore, |
831 | const AliMUONVDigitStore& input, | |
832 | Int_t mask) | |
92aeef15 | 833 | { |
9265505b | 834 | /// Merge the sdigits in inputData with the digits already present in outputData |
92aeef15 | 835 | |
40e382ae | 836 | if ( !outputStore ) outputStore = input.Create(); |
837 | ||
838 | TIter next(input.CreateIterator()); | |
839 | AliMUONVDigit* sdigit; | |
840 | ||
841 | while ( ( sdigit = static_cast<AliMUONVDigit*>(next()) ) ) | |
842 | { | |
843 | // Update the track references using the mask. | |
844 | // FIXME: this is dirty, for backward compatibility only. | |
845 | // Should re-design all this way of keeping track of MC information... | |
846 | if ( mask ) sdigit->PatchTracks(mask); | |
847 | // Then add or update the digit to the output. | |
848 | AliMUONVDigit* added = outputStore->Add(*sdigit,AliMUONVDigitStore::kMerge); | |
849 | if (!added) | |
92aeef15 | 850 | { |
40e382ae | 851 | AliError("Could not add digit in merge mode"); |
92aeef15 | 852 | } |
92aeef15 | 853 | } |
854 | } |