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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" |
22 | #include "AliLog.h" | |
4ce497c4 | 23 | #include "AliMUON.h" |
92aeef15 | 24 | #include "AliMUONCalibrationData.h" |
92aeef15 | 25 | #include "AliMUONConstants.h" |
92aeef15 | 26 | #include "AliMUONDigit.h" |
ad26d4f6 | 27 | #include "AliMUONLogger.h" |
4ce497c4 | 28 | #include "AliMUONTriggerEfficiencyCells.h" |
4f8a3d8b | 29 | #include "AliMUONTriggerElectronics.h" |
40e382ae | 30 | #include "AliMUONTriggerStoreV1.h" |
05314992 | 31 | #include "AliMUONVCalibParam.h" |
40e382ae | 32 | #include "AliMUONVDigitStore.h" |
33 | #include "AliMpCathodType.h" | |
34 | #include "AliMpConstants.h" | |
4ce497c4 | 35 | #include "AliMpDEIterator.h" |
92aeef15 | 36 | #include "AliMpDEManager.h" |
40e382ae | 37 | #include "AliMpDEManager.h" |
4ce497c4 | 38 | #include "AliMpIntPair.h" |
39 | #include "AliMpPad.h" | |
9265505b | 40 | #include "AliMpSegmentation.h" |
40e382ae | 41 | #include "AliMpStationType.h" |
4ce497c4 | 42 | #include "AliMpVSegmentation.h" |
92aeef15 | 43 | #include "AliRun.h" |
44 | #include "AliRunDigitizer.h" | |
45 | #include "AliRunLoader.h" | |
866c3232 | 46 | #include <Riostream.h> |
47 | #include <TF1.h> | |
40e382ae | 48 | #include <TFile.h> |
866c3232 | 49 | #include <TMath.h> |
50 | #include <TRandom.h> | |
51 | #include <TString.h> | |
40e382ae | 52 | #include <TSystem.h> |
53 | ||
8c0b5e70 | 54 | #include "AliMUONGeometryTransformer.h" //ADDED for trigger noise |
4ce497c4 | 55 | /// |
9265505b | 56 | /// \class AliMUONDigitizerV3 |
4ce497c4 | 57 | /// The digitizer is performing the transformation to go from SDigits (digits |
58 | /// w/o any electronic noise) to Digits (w/ electronic noise, and decalibration) | |
59 | /// | |
60 | /// The decalibration is performed by doing the reverse operation of the | |
61 | /// calibration, that is we do (Signal+pedestal)/gain -> ADC | |
62 | /// | |
63 | /// Note also that the digitizer takes care of merging sdigits that belongs | |
64 | /// to the same pad, either because we're merging several input sdigit files | |
65 | /// or with a single file because the sdigitizer does not merge sdigits itself | |
66 | /// (for performance reason mainly, and because anyway we know we have to do it | |
67 | /// here, at the digitization level). | |
68 | /// | |
c4ee792d | 69 | /// \author Laurent Aphecetche |
4ce497c4 | 70 | |
71 | namespace | |
72 | { | |
73 | AliMUON* muon() | |
74 | { | |
75 | return static_cast<AliMUON*>(gAlice->GetModule("MUON")); | |
76 | } | |
8c0b5e70 | 77 | |
78 | //ADDED for trigger noise | |
79 | const AliMUONGeometryTransformer* GetTransformer() | |
80 | { | |
81 | return muon()->GetGeometryTransformer(); | |
82 | } | |
4ce497c4 | 83 | } |
84 | ||
85 | const Double_t AliMUONDigitizerV3::fgkNSigmas=3; | |
86 | ||
9265505b | 87 | /// \cond CLASSIMP |
92aeef15 | 88 | ClassImp(AliMUONDigitizerV3) |
9265505b | 89 | /// \endcond |
92aeef15 | 90 | |
91 | //_____________________________________________________________________________ | |
92 | AliMUONDigitizerV3::AliMUONDigitizerV3(AliRunDigitizer* manager, | |
8c0b5e70 | 93 | Int_t generateNoisyDigits) |
92aeef15 | 94 | : AliDigitizer(manager), |
92aeef15 | 95 | fIsInitialized(kFALSE), |
92aeef15 | 96 | fCalibrationData(0x0), |
97 | fTriggerProcessor(0x0), | |
4ce497c4 | 98 | fTriggerEfficiency(0x0), |
ccea41d4 | 99 | fGenerateNoisyDigitsTimer(), |
100 | fExecTimer(), | |
4ce497c4 | 101 | fNoiseFunction(0x0), |
8c0b5e70 | 102 | fNoiseFunctionTrig(0x0), |
ad26d4f6 | 103 | fGenerateNoisyDigits(generateNoisyDigits), |
40e382ae | 104 | fLogger(new AliMUONLogger(1000)), |
105 | fTriggerStore(new AliMUONTriggerStoreV1), | |
106 | fDigitStore(0x0), | |
107 | fOutputDigitStore(0x0) | |
92aeef15 | 108 | { |
9265505b | 109 | /// Ctor. |
110 | ||
92aeef15 | 111 | AliDebug(1,Form("AliRunDigitizer=%p",fManager)); |
4ce497c4 | 112 | fGenerateNoisyDigitsTimer.Start(kTRUE); fGenerateNoisyDigitsTimer.Stop(); |
113 | fExecTimer.Start(kTRUE); fExecTimer.Stop(); | |
92aeef15 | 114 | } |
115 | ||
116 | //_____________________________________________________________________________ | |
117 | AliMUONDigitizerV3::~AliMUONDigitizerV3() | |
118 | { | |
9265505b | 119 | /// Dtor. Note we're the owner of some pointers. |
120 | ||
92aeef15 | 121 | AliDebug(1,"dtor"); |
4ce497c4 | 122 | |
92aeef15 | 123 | delete fCalibrationData; |
124 | delete fTriggerProcessor; | |
4ce497c4 | 125 | delete fNoiseFunction; |
8c0b5e70 | 126 | delete fNoiseFunctionTrig; |
40e382ae | 127 | delete fTriggerStore; |
128 | delete fDigitStore; | |
129 | delete fOutputDigitStore; | |
4ce497c4 | 130 | |
4ce497c4 | 131 | if ( fGenerateNoisyDigits ) |
132 | { | |
a7b01aa5 | 133 | AliDebug(1, Form("Execution time for GenerateNoisyDigits() : R:%.2fs C:%.2fs", |
4ce497c4 | 134 | fGenerateNoisyDigitsTimer.RealTime(), |
135 | fGenerateNoisyDigitsTimer.CpuTime())); | |
136 | } | |
a7b01aa5 | 137 | AliDebug(1, Form("Execution time for Exec() : R:%.2fs C:%.2fs", |
4ce497c4 | 138 | fExecTimer.RealTime(),fExecTimer.CpuTime())); |
ad26d4f6 | 139 | |
140 | AliInfo("Summary of messages"); | |
141 | fLogger->Print(); | |
4ce497c4 | 142 | |
ad26d4f6 | 143 | delete fLogger; |
92aeef15 | 144 | } |
145 | ||
146 | //_____________________________________________________________________________ | |
147 | void | |
40e382ae | 148 | AliMUONDigitizerV3::ApplyResponseToTrackerDigit(AliMUONVDigit& digit, Bool_t addNoise) |
92aeef15 | 149 | { |
9265505b | 150 | /// For tracking digits, starting from an ideal digit's charge, we : |
151 | /// | |
152 | /// - add some noise (thus leading to a realistic charge), if requested to do so | |
cf27231a | 153 | /// - "divide" by a gain (thus decalibrating the digit) |
9265505b | 154 | /// - add a pedestal (thus decalibrating the digit) |
155 | /// - sets the signal to zero if below 3*sigma of the noise | |
59b91539 | 156 | |
4ce497c4 | 157 | static const Int_t kMaxADC = (1<<12)-1; // We code the charge on a 12 bits ADC. |
ad26d4f6 | 158 | |
cf27231a | 159 | Float_t charge = digit.Charge(); |
160 | ||
161 | // We set the charge to 0, as the only relevant piece of information | |
162 | // after Digitization is the ADC value. | |
163 | digit.SetCharge(0); | |
ad26d4f6 | 164 | |
59b91539 | 165 | if ( !addNoise ) |
ad26d4f6 | 166 | { |
cf27231a | 167 | digit.SetADC(TMath::Min(kMaxADC,TMath::Nint(charge))); |
ad26d4f6 | 168 | return; |
169 | } | |
92aeef15 | 170 | |
4ce497c4 | 171 | Int_t detElemId = digit.DetElemId(); |
92aeef15 | 172 | |
173 | Int_t manuId = digit.ManuId(); | |
174 | Int_t manuChannel = digit.ManuChannel(); | |
175 | ||
4ce497c4 | 176 | AliMUONVCalibParam* pedestal = fCalibrationData->Pedestals(detElemId,manuId); |
92aeef15 | 177 | if (!pedestal) |
ad26d4f6 | 178 | { |
179 | fLogger->Log(Form("%s:%d:Could not get pedestal for DE=%4d manuId=%4d. Disabling.", | |
180 | __FILE__,__LINE__, | |
181 | detElemId,manuId)); | |
ad26d4f6 | 182 | digit.SetADC(0); |
183 | return; | |
184 | } | |
05314992 | 185 | Float_t pedestalMean = pedestal->ValueAsFloat(manuChannel,0); |
186 | Float_t pedestalSigma = pedestal->ValueAsFloat(manuChannel,1); | |
59b91539 | 187 | |
4ce497c4 | 188 | AliMUONVCalibParam* gain = fCalibrationData->Gains(detElemId,manuId); |
92aeef15 | 189 | if (!gain) |
ad26d4f6 | 190 | { |
191 | fLogger->Log(Form("%s:%d:Could not get gain for DE=%4d manuId=%4d. Disabling.", | |
192 | __FILE__,__LINE__, | |
193 | detElemId,manuId)); | |
ad26d4f6 | 194 | digit.SetADC(0); |
195 | return; | |
196 | } | |
cf27231a | 197 | |
198 | Float_t a0 = gain->ValueAsFloat(manuChannel,0); | |
199 | Float_t a1 = gain->ValueAsFloat(manuChannel,1); | |
200 | ||
201 | Int_t thres = gain->ValueAsInt(manuChannel,2); | |
202 | Float_t chargeThres = a0*thres; | |
ad26d4f6 | 203 | |
cf27231a | 204 | Float_t padc(0); // (adc - ped) value |
ad26d4f6 | 205 | |
cf27231a | 206 | if ( charge <= chargeThres || TMath::Abs(a1) < 1E-12 ) |
ad26d4f6 | 207 | { |
cf27231a | 208 | // linear part only |
ad26d4f6 | 209 | |
cf27231a | 210 | if ( TMath::Abs(a0) > 1E-12 ) |
59b91539 | 211 | { |
cf27231a | 212 | padc = charge/a0; |
59b91539 | 213 | } |
ad26d4f6 | 214 | } |
cf27231a | 215 | else // charge > chargeThres && a1 not zero |
216 | { | |
217 | // parabolic part | |
218 | padc = TMath::Sqrt((chargeThres-charge)/a1) + thres; | |
219 | } | |
220 | ||
221 | Float_t adcNoise = gRandom->Gaus(0.0,pedestalSigma); | |
222 | Int_t adc(0); | |
223 | ||
224 | if ( padc > 0 ) | |
225 | { | |
226 | adc = TMath::Nint(padc + pedestalMean + adcNoise); | |
227 | } | |
59b91539 | 228 | |
05314992 | 229 | // be sure we stick to 12 bits. |
4ce497c4 | 230 | if ( adc > kMaxADC ) |
ad26d4f6 | 231 | { |
232 | adc = kMaxADC; | |
233 | } | |
59b91539 | 234 | |
cf27231a | 235 | AliDebug(3,Form("DE %4d Manu %4d Ch %2d Charge %e A0 %e A1 %e Thres %d padc %e ADC %4d", |
236 | detElemId,manuId,manuChannel,charge, | |
237 | gain->ValueAsFloat(manuChannel,0), | |
238 | gain->ValueAsFloat(manuChannel,1), | |
239 | gain->ValueAsInt(manuChannel,2), | |
240 | padc, | |
241 | adc)); | |
242 | ||
92aeef15 | 243 | digit.SetADC(adc); |
244 | } | |
245 | ||
4ce497c4 | 246 | //_____________________________________________________________________________ |
247 | void | |
40e382ae | 248 | AliMUONDigitizerV3::ApplyResponseToTriggerDigit(const AliMUONVDigitStore& digitStore, |
249 | AliMUONVDigit& digit) | |
4ce497c4 | 250 | { |
9265505b | 251 | /// \todo add comment |
252 | ||
4ce497c4 | 253 | if ( !fTriggerEfficiency ) return; |
254 | ||
ad26d4f6 | 255 | if (digit.IsEfficiencyApplied()) return; |
4ce497c4 | 256 | |
40e382ae | 257 | AliMUONVDigit* correspondingDigit = FindCorrespondingDigit(digitStore,digit); |
ad26d4f6 | 258 | |
259 | if (!correspondingDigit) return; //reject bad correspondences | |
a0dc51a6 | 260 | |
4ce497c4 | 261 | Int_t detElemId = digit.DetElemId(); |
9265505b | 262 | |
263 | AliMpSegmentation* segmentation = AliMpSegmentation::Instance(); | |
4ce497c4 | 264 | const AliMpVSegmentation* segment[2] = |
265 | { | |
866c3232 | 266 | segmentation->GetMpSegmentation(detElemId,AliMp::GetCathodType(digit.Cathode())), |
267 | segmentation->GetMpSegmentation(detElemId,AliMp::GetCathodType(correspondingDigit->Cathode())) | |
4ce497c4 | 268 | }; |
269 | ||
270 | AliMpPad pad[2] = | |
271 | { | |
272 | segment[0]->PadByIndices(AliMpIntPair(digit.PadX(),digit.PadY()),kTRUE), | |
273 | segment[1]->PadByIndices(AliMpIntPair(correspondingDigit->PadX(),correspondingDigit->PadY()),kTRUE) | |
274 | }; | |
275 | ||
081d3361 | 276 | Int_t p0(1); |
ad26d4f6 | 277 | if (digit.Cathode()==0) p0=0; |
081d3361 | 278 | |
279 | AliMpIntPair location = pad[p0].GetLocation(0); | |
280 | Int_t nboard = location.GetFirst(); | |
4ce497c4 | 281 | |
4ce497c4 | 282 | Bool_t isTrig[2]; |
081d3361 | 283 | |
8c0b5e70 | 284 | fTriggerEfficiency->IsTriggered(detElemId, nboard, |
4ce497c4 | 285 | isTrig[0], isTrig[1]); |
ad26d4f6 | 286 | digit.EfficiencyApplied(kTRUE); |
287 | correspondingDigit->EfficiencyApplied(kTRUE); | |
081d3361 | 288 | |
4ce497c4 | 289 | if (!isTrig[digit.Cathode()]) |
290 | { | |
40e382ae | 291 | digit.SetCharge(0); |
4ce497c4 | 292 | } |
293 | ||
294 | if ( &digit != correspondingDigit ) | |
295 | { | |
296 | if (!isTrig[correspondingDigit->Cathode()]) | |
297 | { | |
40e382ae | 298 | correspondingDigit->SetCharge(0); |
4ce497c4 | 299 | } |
300 | } | |
301 | } | |
302 | ||
92aeef15 | 303 | //_____________________________________________________________________________ |
304 | void | |
40e382ae | 305 | AliMUONDigitizerV3::ApplyResponse(const AliMUONVDigitStore& store, |
306 | AliMUONVDigitStore& filteredStore) | |
92aeef15 | 307 | { |
9265505b | 308 | /// Loop over all chamber digits, and apply the response to them |
309 | /// Note that this method may remove digits. | |
310 | ||
40e382ae | 311 | filteredStore.Clear(); |
312 | ||
4ce497c4 | 313 | const Bool_t kAddNoise = kTRUE; |
314 | ||
40e382ae | 315 | TIter next(store.CreateIterator()); |
316 | AliMUONVDigit* digit; | |
317 | ||
318 | while ( ( digit = static_cast<AliMUONVDigit*>(next()) ) ) | |
4ce497c4 | 319 | { |
40e382ae | 320 | AliMp::StationType stationType = AliMpDEManager::GetStationType(digit->DetElemId()); |
321 | ||
322 | if ( stationType != AliMp::kStationTrigger ) | |
92aeef15 | 323 | { |
40e382ae | 324 | ApplyResponseToTrackerDigit(*digit,kAddNoise); |
92aeef15 | 325 | } |
40e382ae | 326 | else |
92aeef15 | 327 | { |
40e382ae | 328 | ApplyResponseToTriggerDigit(store,*digit); |
329 | } | |
cf27231a | 330 | if ( digit->ADC() > 0 || digit->Charge() > 0 ) |
40e382ae | 331 | { |
332 | filteredStore.Add(*digit,AliMUONVDigitStore::kIgnore); | |
92aeef15 | 333 | } |
92aeef15 | 334 | } |
40e382ae | 335 | } |
92aeef15 | 336 | |
337 | //_____________________________________________________________________________ | |
338 | void | |
339 | AliMUONDigitizerV3::Exec(Option_t*) | |
340 | { | |
9265505b | 341 | /// Main method. |
342 | /// We first loop over input files, and merge the sdigits we found there. | |
343 | /// Second, we digitize all the resulting sdigits | |
344 | /// Then we generate noise-only digits (for tracker only) | |
345 | /// And we finally generate the trigger outputs. | |
4ce497c4 | 346 | |
92aeef15 | 347 | AliDebug(1, "Running digitizer."); |
348 | ||
349 | if ( fManager->GetNinputs() == 0 ) | |
350 | { | |
351 | AliWarning("No input set. Nothing to do."); | |
352 | return; | |
353 | } | |
354 | ||
355 | if ( !fIsInitialized ) | |
356 | { | |
357 | AliError("Not initialized. Cannot perform the work. Sorry"); | |
358 | return; | |
359 | } | |
360 | ||
4ce497c4 | 361 | fExecTimer.Start(kFALSE); |
362 | ||
92aeef15 | 363 | Int_t nInputFiles = fManager->GetNinputs(); |
364 | ||
40e382ae | 365 | AliLoader* outputLoader = GetLoader(fManager->GetOutputFolderName()); |
366 | ||
367 | outputLoader->MakeDigitsContainer(); | |
368 | ||
369 | TTree* oTreeD = outputLoader->TreeD(); | |
370 | ||
371 | if (!oTreeD) | |
92aeef15 | 372 | { |
40e382ae | 373 | AliFatal("Cannot create output TreeD"); |
92aeef15 | 374 | } |
40e382ae | 375 | |
92aeef15 | 376 | // Loop over all the input files, and merge the sdigits found in those |
377 | // files. | |
40e382ae | 378 | |
92aeef15 | 379 | for ( Int_t iFile = 0; iFile < nInputFiles; ++iFile ) |
380 | { | |
40e382ae | 381 | AliLoader* inputLoader = GetLoader(fManager->GetInputFolderName(iFile)); |
382 | ||
383 | inputLoader->LoadSDigits("READ"); | |
384 | ||
385 | TTree* iTreeS = inputLoader->TreeS(); | |
386 | if (!iTreeS) | |
92aeef15 | 387 | { |
388 | AliFatal(Form("Could not get access to input file #%d",iFile)); | |
389 | } | |
40e382ae | 390 | |
391 | AliMUONVDigitStore* inputStore = AliMUONVDigitStore::Create(*iTreeS); | |
392 | inputStore->Connect(*iTreeS); | |
393 | ||
394 | iTreeS->GetEvent(0); | |
395 | ||
396 | MergeWithSDigits(fDigitStore,*inputStore,fManager->GetMask(iFile)); | |
05314992 | 397 | |
40e382ae | 398 | inputLoader->UnloadSDigits(); |
05314992 | 399 | |
40e382ae | 400 | delete inputStore; |
92aeef15 | 401 | } |
402 | ||
403 | // At this point, we do have digit arrays (one per chamber) which contains | |
404 | // the merging of all the sdigits of the input file(s). | |
405 | // We now massage them to apply the detector response, i.e. this | |
406 | // is here that we do the "digitization" work. | |
407 | ||
40e382ae | 408 | if (!fOutputDigitStore) |
409 | { | |
410 | fOutputDigitStore = fDigitStore->Create(); | |
411 | } | |
412 | ||
8c0b5e70 | 413 | if ( fGenerateNoisyDigits>=2 ) |
414 | { | |
415 | // Generate noise-only digits for trigger. | |
416 | GenerateNoisyDigitsForTrigger(*fDigitStore); | |
417 | } | |
418 | ||
40e382ae | 419 | ApplyResponse(*fDigitStore,*fOutputDigitStore); |
4ce497c4 | 420 | |
421 | if ( fGenerateNoisyDigits ) | |
422 | { | |
423 | // Generate noise-only digits for tracker. | |
40e382ae | 424 | GenerateNoisyDigits(*fOutputDigitStore); |
4ce497c4 | 425 | } |
426 | ||
92aeef15 | 427 | // We generate the global and local trigger decisions. |
40e382ae | 428 | fTriggerProcessor->Digits2Trigger(*fOutputDigitStore,*fTriggerStore); |
429 | ||
430 | // Prepare output tree | |
431 | Bool_t okD = fOutputDigitStore->Connect(*oTreeD,kFALSE); | |
432 | Bool_t okT = fTriggerStore->Connect(*oTreeD,kFALSE); | |
433 | if (!okD || !okT) | |
434 | { | |
435 | AliError(Form("Could not make branch : Digit %d Trigger %d",okD,okT)); | |
436 | return; | |
437 | } | |
92aeef15 | 438 | |
439 | // Fill the output treeD | |
40e382ae | 440 | oTreeD->Fill(); |
92aeef15 | 441 | |
442 | // Write to the output tree(D). | |
443 | // Please note that as GlobalTrigger, LocalTrigger and Digits are in the same | |
444 | // tree (=TreeD) in different branches, this WriteDigits in fact writes all of | |
445 | // the 3 branches. | |
40e382ae | 446 | outputLoader->WriteDigits("OVERWRITE"); |
92aeef15 | 447 | |
40e382ae | 448 | outputLoader->UnloadDigits(); |
4ce497c4 | 449 | |
40e382ae | 450 | // Finally, we clean up after ourselves. |
451 | fTriggerStore->Clear(); | |
452 | fDigitStore->Clear(); | |
453 | fOutputDigitStore->Clear(); | |
4ce497c4 | 454 | fExecTimer.Stop(); |
92aeef15 | 455 | } |
456 | ||
4ce497c4 | 457 | //_____________________________________________________________________________ |
40e382ae | 458 | AliMUONVDigit* |
459 | AliMUONDigitizerV3::FindCorrespondingDigit(const AliMUONVDigitStore& digitStore, | |
460 | AliMUONVDigit& digit) const | |
4ce497c4 | 461 | { |
ad26d4f6 | 462 | /// Find, if it exists, the digit corresponding to digit.Hit(), in the |
463 | /// other cathode | |
9265505b | 464 | |
40e382ae | 465 | TIter next(digitStore.CreateIterator()); |
466 | AliMUONVDigit* d; | |
467 | ||
468 | while ( ( d = static_cast<AliMUONVDigit*>(next()) ) ) | |
4ce497c4 | 469 | { |
40e382ae | 470 | if ( d->DetElemId() == digit.DetElemId() && |
ad26d4f6 | 471 | d->Hit() == digit.Hit() && |
472 | d->Cathode() != digit.Cathode() ) | |
4ce497c4 | 473 | { |
ad26d4f6 | 474 | return d; |
475 | } | |
476 | } | |
4ce497c4 | 477 | return 0x0; |
478 | } | |
479 | ||
480 | ||
4ce497c4 | 481 | //_____________________________________________________________________________ |
482 | void | |
40e382ae | 483 | AliMUONDigitizerV3::GenerateNoisyDigits(AliMUONVDigitStore& digitStore) |
4ce497c4 | 484 | { |
9265505b | 485 | /// According to a given probability, generate digits that |
486 | /// have a signal above the noise cut (ped+n*sigma_ped), i.e. digits | |
487 | /// that are "only noise". | |
4ce497c4 | 488 | |
489 | if ( !fNoiseFunction ) | |
490 | { | |
491 | fNoiseFunction = new TF1("AliMUONDigitizerV3::fNoiseFunction","gaus", | |
492 | fgkNSigmas,fgkNSigmas*10); | |
493 | ||
494 | fNoiseFunction->SetParameters(1,0,1); | |
495 | } | |
496 | ||
497 | fGenerateNoisyDigitsTimer.Start(kFALSE); | |
498 | ||
499 | for ( Int_t i = 0; i < AliMUONConstants::NTrackingCh(); ++i ) | |
500 | { | |
501 | AliMpDEIterator it; | |
502 | ||
503 | it.First(i); | |
504 | ||
505 | while ( !it.IsDone() ) | |
506 | { | |
507 | for ( Int_t cathode = 0; cathode < 2; ++cathode ) | |
508 | { | |
40e382ae | 509 | GenerateNoisyDigitsForOneCathode(digitStore,it.CurrentDEId(),cathode); |
4ce497c4 | 510 | } |
511 | it.Next(); | |
512 | } | |
513 | } | |
514 | ||
515 | fGenerateNoisyDigitsTimer.Stop(); | |
516 | } | |
517 | ||
518 | //_____________________________________________________________________________ | |
519 | void | |
40e382ae | 520 | AliMUONDigitizerV3::GenerateNoisyDigitsForOneCathode(AliMUONVDigitStore& digitStore, |
521 | Int_t detElemId, Int_t cathode) | |
4ce497c4 | 522 | { |
9265505b | 523 | /// Generate noise-only digits for one cathode of one detection element. |
524 | /// Called by GenerateNoisyDigits() | |
4ce497c4 | 525 | |
9265505b | 526 | const AliMpVSegmentation* seg |
866c3232 | 527 | = AliMpSegmentation::Instance()->GetMpSegmentation(detElemId,AliMp::GetCathodType(cathode)); |
4ce497c4 | 528 | Int_t nofPads = seg->NofPads(); |
529 | ||
530 | Int_t maxIx = seg->MaxPadIndexX(); | |
531 | Int_t maxIy = seg->MaxPadIndexY(); | |
532 | ||
cdea095e | 533 | static const Double_t kProbToBeOutsideNsigmas = TMath::Erfc(fgkNSigmas/TMath::Sqrt(2.0)) / 2. ; |
4ce497c4 | 534 | |
84aac932 | 535 | Int_t nofNoisyPads = TMath::Nint(kProbToBeOutsideNsigmas*nofPads); |
4ce497c4 | 536 | if ( !nofNoisyPads ) return; |
537 | ||
538 | nofNoisyPads = | |
539 | TMath::Nint(gRandom->Gaus(nofNoisyPads, | |
540 | nofNoisyPads/TMath::Sqrt(nofNoisyPads))); | |
541 | ||
542 | AliDebug(3,Form("DE %d cath %d nofNoisyPads %d",detElemId,cathode,nofNoisyPads)); | |
543 | ||
40e382ae | 544 | for ( Int_t i = 0; i < nofNoisyPads; ++i ) |
4ce497c4 | 545 | { |
546 | Int_t ix(-1); | |
547 | Int_t iy(-1); | |
40e382ae | 548 | AliMpPad pad; |
549 | ||
4ce497c4 | 550 | do { |
551 | ix = gRandom->Integer(maxIx+1); | |
552 | iy = gRandom->Integer(maxIy+1); | |
40e382ae | 553 | pad = seg->PadByIndices(AliMpIntPair(ix,iy),kFALSE); |
554 | } while ( !pad.IsValid() ); | |
555 | ||
4ce497c4 | 556 | Int_t manuId = pad.GetLocation().GetFirst(); |
40e382ae | 557 | Int_t manuChannel = pad.GetLocation().GetSecond(); |
558 | ||
4ce497c4 | 559 | AliMUONVCalibParam* pedestals = fCalibrationData->Pedestals(detElemId,manuId); |
560 | ||
ad26d4f6 | 561 | if (!pedestals) |
562 | { | |
563 | // no pedestal available for this channel, simply give up | |
40e382ae | 564 | continue; |
ad26d4f6 | 565 | } |
566 | ||
40e382ae | 567 | AliMUONVDigit* d = digitStore.CreateDigit(detElemId,manuId,manuChannel,cathode); |
568 | ||
569 | d->SetPadXY(ix,iy); | |
570 | ||
4ce497c4 | 571 | Float_t pedestalMean = pedestals->ValueAsFloat(manuChannel,0); |
572 | Float_t pedestalSigma = pedestals->ValueAsFloat(manuChannel,1); | |
573 | ||
574 | Double_t ped = fNoiseFunction->GetRandom()*pedestalSigma; | |
59b91539 | 575 | |
40e382ae | 576 | d->SetCharge(TMath::Nint(ped+pedestalMean+0.5)); |
577 | d->NoiseOnly(kTRUE); | |
578 | ApplyResponseToTrackerDigit(*d,kFALSE); | |
cf27231a | 579 | if ( d->ADC() > 0 ) |
4ce497c4 | 580 | { |
40e382ae | 581 | Bool_t ok = digitStore.Add(*d,AliMUONVDigitStore::kDeny); |
582 | // this can happen (that we randomly chose a digit that is | |
583 | // already there). We simply ignore this, but log the occurence | |
584 | // to cross-check that it's not too frequent. | |
585 | if (!ok) | |
586 | { | |
587 | fLogger->Log("Collision while adding noiseOnly digit"); | |
588 | } | |
589 | else | |
590 | { | |
591 | fLogger->Log("Added noiseOnly digit"); | |
592 | } | |
4ce497c4 | 593 | } |
594 | else | |
595 | { | |
596 | AliError("Pure noise below threshold. This should not happen. Not adding " | |
597 | "this digit."); | |
598 | } | |
40e382ae | 599 | delete d; |
4ce497c4 | 600 | } |
601 | } | |
602 | ||
8c0b5e70 | 603 | |
604 | //_____________________________________________________________________________ | |
605 | void | |
606 | AliMUONDigitizerV3::GenerateNoisyDigitsForTrigger(AliMUONVDigitStore& digitStore) | |
607 | { | |
608 | /// Generate noise-only digits for one cathode of one detection element. | |
609 | /// Called by GenerateNoisyDigits() | |
610 | ||
611 | if ( !fNoiseFunctionTrig ) | |
612 | { | |
613 | fNoiseFunctionTrig = new TF1("AliMUONDigitizerV3::fNoiseFunctionTrig","landau", | |
614 | 50.,270.); | |
615 | ||
616 | fNoiseFunctionTrig->SetParameters(3.91070e+02, 9.85026, 9.35881e-02); | |
617 | } | |
618 | ||
619 | AliMpPad pad[2]; | |
620 | AliMUONVDigit *d[2]={0x0}; | |
621 | ||
622 | for ( Int_t chamberId = AliMUONConstants::NTrackingCh(); chamberId < AliMUONConstants::NCh(); ++chamberId ) | |
623 | { | |
624 | ||
625 | Int_t nofNoisyPads = 50; | |
626 | ||
627 | Float_t r=-1, fi = 0., gx, gy, x, y, z, xg01, yg01, zg, xg02, yg02; | |
628 | AliMpDEIterator it; | |
629 | ||
630 | AliDebug(3,Form("Chamber %d nofNoisyPads %d",chamberId,nofNoisyPads)); | |
631 | ||
632 | for ( Int_t i = 0; i < nofNoisyPads; ++i ) | |
633 | { | |
634 | //printf("Generating noise %i\n",i); | |
635 | Int_t ix(-1); | |
636 | Int_t iy(-1); | |
637 | Bool_t isOk = kFALSE; | |
638 | Int_t detElemId = -1; | |
639 | do { | |
640 | //r = gRandom->Landau(9.85026, 9.35881e-02); | |
641 | r = fNoiseFunctionTrig->GetRandom(); | |
642 | fi = 2. * TMath::Pi() * gRandom->Rndm(); | |
643 | //printf("r = %f\tfi = %f\n", r, fi); | |
644 | gx = r * TMath::Cos(fi); | |
645 | gy = r * TMath::Sin(fi); | |
646 | ||
647 | for ( it.First(chamberId); ! it.IsDone(); it.Next() ){ | |
648 | Int_t currDetElemId = it.CurrentDEId(); | |
649 | const AliMpVSegmentation* seg | |
650 | = AliMpSegmentation::Instance()->GetMpSegmentation(currDetElemId,AliMp::GetCathodType(0)); | |
651 | if (!seg) continue; | |
652 | Float_t deltax = seg->Dimensions().X(); | |
653 | Float_t deltay = seg->Dimensions().Y(); | |
654 | GetTransformer()->Local2Global(currDetElemId, -deltax, -deltay, 0, xg01, yg01, zg); | |
655 | GetTransformer()->Local2Global(currDetElemId, deltax, deltay, 0, xg02, yg02, zg); | |
656 | Float_t xg1 = xg01, xg2 = xg02, yg1 = yg01, yg2 = yg02; | |
657 | if(xg01>xg02){ | |
658 | xg1 = xg02; | |
659 | xg2 = xg01; | |
660 | } | |
661 | if(yg01>yg02){ | |
662 | yg1 = yg02; | |
663 | yg2 = yg01; | |
664 | } | |
665 | if(gx>=xg1 && gx<=xg2 && gy>=yg1 && gy<=yg2){ | |
666 | detElemId = currDetElemId; | |
667 | GetTransformer()->Global2Local(detElemId, gx, gy, 0, x, y, z); | |
668 | pad[0] = seg->PadByPosition(TVector2(x,y),kFALSE); | |
669 | if(!pad[0].IsValid()) continue; | |
670 | isOk = kTRUE; | |
671 | break; | |
672 | } | |
673 | } // loop on slats | |
674 | } while ( !isOk ); | |
675 | ||
676 | const AliMpVSegmentation* seg1 | |
677 | = AliMpSegmentation::Instance()->GetMpSegmentation(detElemId,AliMp::GetCathodType(1)); | |
678 | pad[1] = seg1->PadByPosition(TVector2(x,y),kFALSE); | |
679 | ||
680 | for ( Int_t cathode = 0; cathode < 2; ++cathode ){ | |
681 | Int_t manuId = pad[cathode].GetLocation(0).GetFirst(); | |
682 | Int_t manuChannel = pad[cathode].GetLocation(0).GetSecond(); | |
683 | d[cathode] = digitStore.CreateDigit(detElemId,manuId,manuChannel,cathode); | |
684 | ix = pad[cathode].GetIndices().GetFirst(); | |
685 | iy = pad[cathode].GetIndices().GetSecond(); | |
686 | d[cathode]->SetPadXY(ix,iy); | |
687 | //d[cathode].SetSignal(1); | |
688 | //d[cathode].SetPhysicsSignal(0); | |
689 | d[cathode]->SetCharge(1); | |
690 | d[cathode]->NoiseOnly(kTRUE); | |
691 | AliDebug(3,Form("Adding a pure noise digit :")); | |
692 | ||
693 | Bool_t ok = digitStore.Add(*d[cathode],AliMUONVDigitStore::kDeny); | |
694 | if (!ok) | |
695 | { | |
696 | fLogger->Log("Collision while adding TriggerNoise digit"); | |
697 | } | |
698 | else | |
699 | { | |
700 | fLogger->Log("Added triggerNoise digit"); | |
701 | } | |
702 | } //loop on cathodes | |
703 | } // loop on noisy pads | |
704 | } // loop on chambers | |
705 | } | |
706 | ||
707 | ||
92aeef15 | 708 | //_____________________________________________________________________________ |
40e382ae | 709 | AliLoader* |
710 | AliMUONDigitizerV3::GetLoader(const TString& folderName) | |
92aeef15 | 711 | { |
40e382ae | 712 | /// Get a MUON loader |
9265505b | 713 | |
ad26d4f6 | 714 | AliDebug(2,Form("Getting access to folder %s",folderName.Data())); |
40e382ae | 715 | AliLoader* loader = AliRunLoader::GetDetectorLoader("MUON",folderName.Data()); |
92aeef15 | 716 | if (!loader) |
717 | { | |
718 | AliError(Form("Could not get MuonLoader from folder %s",folderName.Data())); | |
719 | return 0x0; | |
720 | } | |
40e382ae | 721 | return loader; |
92aeef15 | 722 | } |
723 | ||
724 | //_____________________________________________________________________________ | |
725 | Bool_t | |
726 | AliMUONDigitizerV3::Init() | |
727 | { | |
9265505b | 728 | /// Initialization of the TTask : |
40e382ae | 729 | /// a) create the calibrationData, according to run number |
730 | /// b) create the trigger processing task | |
9265505b | 731 | |
ad26d4f6 | 732 | AliDebug(2,""); |
92aeef15 | 733 | |
734 | if ( fIsInitialized ) | |
735 | { | |
736 | AliError("Object already initialized."); | |
737 | return kFALSE; | |
738 | } | |
739 | ||
740 | if (!fManager) | |
741 | { | |
742 | AliError("fManager is null !"); | |
743 | return kFALSE; | |
744 | } | |
745 | ||
ad26d4f6 | 746 | Int_t runnumber = AliCDBManager::Instance()->GetRun(); |
92aeef15 | 747 | |
748 | fCalibrationData = new AliMUONCalibrationData(runnumber); | |
ad26d4f6 | 749 | if ( !fCalibrationData->Pedestals() ) |
750 | { | |
751 | AliFatal("Could not access pedestals from OCDB !"); | |
752 | } | |
753 | if ( !fCalibrationData->Gains() ) | |
754 | { | |
755 | AliFatal("Could not access gains from OCDB !"); | |
756 | } | |
40e382ae | 757 | fTriggerProcessor = new AliMUONTriggerElectronics(fCalibrationData); |
4ce497c4 | 758 | |
afb3ccf0 | 759 | if ( muon()->GetTriggerEffCells() ) |
4ce497c4 | 760 | { |
761 | fTriggerEfficiency = fCalibrationData->TriggerEfficiency(); | |
762 | if ( fTriggerEfficiency ) | |
763 | { | |
a7b01aa5 | 764 | AliDebug(1, "Will apply trigger efficiency"); |
4ce497c4 | 765 | } |
766 | else | |
767 | { | |
ad26d4f6 | 768 | AliFatal("I was requested to apply trigger efficiency, but I could " |
4ce497c4 | 769 | "not get it !"); |
770 | } | |
771 | } | |
772 | ||
ad26d4f6 | 773 | AliDebug(1, Form("Will %s generate noise-only digits for tracker", |
774 | (fGenerateNoisyDigits ? "":"NOT"))); | |
775 | ||
92aeef15 | 776 | fIsInitialized = kTRUE; |
777 | return kTRUE; | |
778 | } | |
779 | ||
92aeef15 | 780 | //_____________________________________________________________________________ |
781 | void | |
40e382ae | 782 | AliMUONDigitizerV3::MergeWithSDigits(AliMUONVDigitStore*& outputStore, |
783 | const AliMUONVDigitStore& input, | |
784 | Int_t mask) | |
92aeef15 | 785 | { |
9265505b | 786 | /// Merge the sdigits in inputData with the digits already present in outputData |
92aeef15 | 787 | |
40e382ae | 788 | if ( !outputStore ) outputStore = input.Create(); |
789 | ||
790 | TIter next(input.CreateIterator()); | |
791 | AliMUONVDigit* sdigit; | |
792 | ||
793 | while ( ( sdigit = static_cast<AliMUONVDigit*>(next()) ) ) | |
794 | { | |
795 | // Update the track references using the mask. | |
796 | // FIXME: this is dirty, for backward compatibility only. | |
797 | // Should re-design all this way of keeping track of MC information... | |
798 | if ( mask ) sdigit->PatchTracks(mask); | |
799 | // Then add or update the digit to the output. | |
800 | AliMUONVDigit* added = outputStore->Add(*sdigit,AliMUONVDigitStore::kMerge); | |
801 | if (!added) | |
92aeef15 | 802 | { |
40e382ae | 803 | AliError("Could not add digit in merge mode"); |
92aeef15 | 804 | } |
92aeef15 | 805 | } |
806 | } |