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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 | ||
4ce497c4 | 21 | #include "AliMUON.h" |
92aeef15 | 22 | #include "AliMUONCalibrationData.h" |
92aeef15 | 23 | #include "AliMUONConstants.h" |
92aeef15 | 24 | #include "AliMUONDigit.h" |
ad26d4f6 | 25 | #include "AliMUONLogger.h" |
4f8a3d8b | 26 | #include "AliMUONTriggerElectronics.h" |
40e382ae | 27 | #include "AliMUONTriggerStoreV1.h" |
05314992 | 28 | #include "AliMUONVCalibParam.h" |
40e382ae | 29 | #include "AliMUONVDigitStore.h" |
331a617a | 30 | #include "AliMUONGeometryTransformer.h" //ADDED for trigger noise |
31 | ||
88544f7e | 32 | #include "AliMpCDB.h" |
331a617a | 33 | #include "AliMpSegmentation.h" |
40e382ae | 34 | #include "AliMpCathodType.h" |
35 | #include "AliMpConstants.h" | |
4ce497c4 | 36 | #include "AliMpDEIterator.h" |
92aeef15 | 37 | #include "AliMpDEManager.h" |
4ce497c4 | 38 | #include "AliMpPad.h" |
40e382ae | 39 | #include "AliMpStationType.h" |
4ce497c4 | 40 | #include "AliMpVSegmentation.h" |
331a617a | 41 | |
42 | #include "AliCDBManager.h" | |
43 | #include "AliCodeTimer.h" | |
44 | #include "AliLog.h" | |
92aeef15 | 45 | #include "AliRun.h" |
46 | #include "AliRunDigitizer.h" | |
47 | #include "AliRunLoader.h" | |
331a617a | 48 | |
866c3232 | 49 | #include <Riostream.h> |
50 | #include <TF1.h> | |
40e382ae | 51 | #include <TFile.h> |
866c3232 | 52 | #include <TMath.h> |
53 | #include <TRandom.h> | |
54 | #include <TString.h> | |
40e382ae | 55 | #include <TSystem.h> |
56 | ||
3d1463c8 | 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 | ||
5c083cba | 88 | Double_t AliMUONDigitizerV3::fgNSigmas = 4.0; |
4ce497c4 | 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), | |
8c0b5e70 | 101 | fNoiseFunctionTrig(0x0), |
ec9acc85 | 102 | fGenerateNoisyDigits(generateNoisyDigits), |
103 | fLogger(new AliMUONLogger(1000)), | |
40e382ae | 104 | fTriggerStore(new AliMUONTriggerStoreV1), |
105 | fDigitStore(0x0), | |
9ec6a948 | 106 | fOutputDigitStore(0x0), |
ca8c8223 | 107 | fInputDigitStores(0x0) |
92aeef15 | 108 | { |
9265505b | 109 | /// Ctor. |
110 | ||
92aeef15 | 111 | AliDebug(1,Form("AliRunDigitizer=%p",fManager)); |
ec9acc85 | 112 | |
92aeef15 | 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 | |
92c23b09 | 122 | // delete fCalibrationData; |
92aeef15 | 123 | delete fTriggerProcessor; |
8c0b5e70 | 124 | delete fNoiseFunctionTrig; |
40e382ae | 125 | delete fTriggerStore; |
126 | delete fDigitStore; | |
127 | delete fOutputDigitStore; | |
ca8c8223 | 128 | delete fInputDigitStores; |
9ec6a948 | 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 | |
5d950f54 | 147 | Float_t charge = digit.IsChargeInFC() ? digit.Charge()*AliMUONConstants::FC2ADC() : digit.Charge(); |
cf27231a | 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 | |
627ba19f | 166 | Int_t manuChannel = digit.ManuChannel(); |
167 | ||
168 | if ( pedestal->ValueAsFloat(manuChannel,0) == AliMUONVCalibParam::InvalidFloatValue() || | |
169 | pedestal->ValueAsFloat(manuChannel,1) == AliMUONVCalibParam::InvalidFloatValue() ) | |
170 | { | |
171 | // protection against invalid pedestal value | |
172 | digit.SetADC(0); | |
173 | return; | |
174 | } | |
175 | ||
4ce497c4 | 176 | AliMUONVCalibParam* gain = fCalibrationData->Gains(detElemId,manuId); |
92aeef15 | 177 | if (!gain) |
ad26d4f6 | 178 | { |
179 | fLogger->Log(Form("%s:%d:Could not get gain for DE=%4d manuId=%4d. Disabling.", | |
180 | __FILE__,__LINE__, | |
181 | detElemId,manuId)); | |
ad26d4f6 | 182 | digit.SetADC(0); |
183 | return; | |
184 | } | |
cf27231a | 185 | |
ec9acc85 | 186 | Int_t adc = DecalibrateTrackerDigit(*pedestal,*gain,manuChannel,charge,addNoise, |
187 | digit.IsNoiseOnly()); | |
59b91539 | 188 | |
92aeef15 | 189 | digit.SetADC(adc); |
190 | } | |
191 | ||
192 | //_____________________________________________________________________________ | |
193 | void | |
40e382ae | 194 | AliMUONDigitizerV3::ApplyResponse(const AliMUONVDigitStore& store, |
195 | AliMUONVDigitStore& filteredStore) | |
92aeef15 | 196 | { |
9265505b | 197 | /// Loop over all chamber digits, and apply the response to them |
198 | /// Note that this method may remove digits. | |
199 | ||
40e382ae | 200 | filteredStore.Clear(); |
201 | ||
4ce497c4 | 202 | const Bool_t kAddNoise = kTRUE; |
203 | ||
40e382ae | 204 | TIter next(store.CreateIterator()); |
205 | AliMUONVDigit* digit; | |
206 | ||
207 | while ( ( digit = static_cast<AliMUONVDigit*>(next()) ) ) | |
4ce497c4 | 208 | { |
40e382ae | 209 | AliMp::StationType stationType = AliMpDEManager::GetStationType(digit->DetElemId()); |
210 | ||
211 | if ( stationType != AliMp::kStationTrigger ) | |
92aeef15 | 212 | { |
40e382ae | 213 | ApplyResponseToTrackerDigit(*digit,kAddNoise); |
92aeef15 | 214 | } |
7d7d22a6 | 215 | |
cf27231a | 216 | if ( digit->ADC() > 0 || digit->Charge() > 0 ) |
40e382ae | 217 | { |
218 | filteredStore.Add(*digit,AliMUONVDigitStore::kIgnore); | |
92aeef15 | 219 | } |
92aeef15 | 220 | } |
40e382ae | 221 | } |
92aeef15 | 222 | |
b74ca120 | 223 | //_____________________________________________________________________________ |
224 | Int_t | |
225 | AliMUONDigitizerV3::DecalibrateTrackerDigit(const AliMUONVCalibParam& pedestals, | |
226 | const AliMUONVCalibParam& gains, | |
227 | Int_t channel, | |
228 | Float_t charge, | |
ec9acc85 | 229 | Bool_t addNoise, |
230 | Bool_t noiseOnly) | |
b74ca120 | 231 | { |
232 | /// Decalibrate (i.e. go from charge to adc) a tracker digit, given its | |
233 | /// pedestal and gain parameters. | |
234 | /// Must insure before calling that channel is valid (i.e. between 0 and | |
235 | /// pedestals or gains->GetSize()-1, but also corresponding to a valid channel | |
236 | /// otherwise results are not predictible...) | |
237 | ||
238 | static const Int_t kMaxADC = (1<<12)-1; // We code the charge on a 12 bits ADC. | |
239 | ||
240 | Float_t pedestalMean = pedestals.ValueAsFloat(channel,0); | |
241 | Float_t pedestalSigma = pedestals.ValueAsFloat(channel,1); | |
242 | ||
ec9acc85 | 243 | AliDebugClass(1,Form("DE %04d MANU %04d CH %02d PEDMEAN %7.2f PEDSIGMA %7.2f", |
5d950f54 | 244 | pedestals.ID0(),pedestals.ID1(),channel,pedestalMean,pedestalSigma)); |
ec9acc85 | 245 | |
b74ca120 | 246 | Float_t a0 = gains.ValueAsFloat(channel,0); |
247 | Float_t a1 = gains.ValueAsFloat(channel,1); | |
248 | Int_t thres = gains.ValueAsInt(channel,2); | |
249 | Int_t qual = gains.ValueAsInt(channel,3); | |
5d950f54 | 250 | |
b74ca120 | 251 | if ( qual <= 0 ) return 0; |
252 | ||
253 | Float_t chargeThres = a0*thres; | |
254 | ||
255 | Float_t padc(0); // (adc - ped) value | |
256 | ||
257 | if ( charge <= chargeThres || TMath::Abs(a1) < 1E-12 ) | |
258 | { | |
259 | // linear part only | |
260 | ||
261 | if ( TMath::Abs(a0) > 1E-12 ) | |
262 | { | |
263 | padc = charge/a0; | |
264 | } | |
265 | } | |
266 | else | |
267 | { | |
268 | // linear + parabolic part | |
269 | Double_t qt = chargeThres - charge; | |
270 | Double_t delta = a0*a0-4*a1*qt; | |
271 | if ( delta < 0 ) | |
272 | { | |
273 | AliErrorClass(Form("delta=%e DE %d Manu %d Channel %d " | |
274 | " charge %e a0 %e a1 %e thres %d ped %e pedsig %e", | |
275 | delta,pedestals.ID0(),pedestals.ID1(), | |
276 | channel, charge, a0, a1, thres, pedestalMean, | |
277 | pedestalSigma)); | |
278 | } | |
279 | else | |
280 | { | |
281 | delta = TMath::Sqrt(delta); | |
282 | ||
283 | padc = ( ( -a0 + delta ) > 0 ? ( -a0 + delta ) : ( -a0 - delta ) ); | |
284 | ||
285 | padc /= 2*a1; | |
286 | ||
287 | if ( padc < 0 ) | |
288 | { | |
289 | if ( TMath::Abs(padc) > 1E-3) | |
290 | { | |
291 | // this is more than a precision problem : let's signal it ! | |
292 | AliErrorClass(Form("padc=%e DE %d Manu %d Channel %d " | |
293 | " charge %e a0 %e a1 %e thres %d ped %e pedsig %e delta %e", | |
294 | padc,pedestals.ID0(),pedestals.ID1(), | |
295 | channel, charge, a0, a1, thres, pedestalMean, | |
296 | pedestalSigma,delta)); | |
297 | } | |
298 | ||
299 | // ok. consider we're just at thres, let it be zero. | |
300 | padc = 0; | |
301 | } | |
302 | ||
303 | padc += thres; | |
304 | ||
305 | } | |
306 | } | |
307 | ||
308 | Int_t adc(0); | |
309 | ||
ec9acc85 | 310 | Float_t adcNoise = 0.0; |
b74ca120 | 311 | |
ec9acc85 | 312 | if ( addNoise ) |
313 | { | |
314 | if ( noiseOnly ) | |
315 | { | |
316 | adcNoise = NoiseFunction()->GetRandom()*pedestalSigma; | |
317 | } | |
318 | else | |
319 | { | |
320 | adcNoise = gRandom->Gaus(0.0,pedestalSigma); | |
321 | } | |
322 | } | |
b74ca120 | 323 | |
ec9acc85 | 324 | adc = TMath::Nint(padc + pedestalMean + adcNoise + 0.5); |
325 | ||
5c083cba | 326 | if ( adc < TMath::Nint(pedestalMean + fgNSigmas*pedestalSigma + 0.5) ) |
ec9acc85 | 327 | { |
5d950f54 | 328 | AliErrorClass(Form(" DE %04d Manu %04d Channel %02d " |
329 | " a0 %7.2f a1 %7.2f thres %04d ped %7.2f pedsig %7.2f adcNoise %7.2f" | |
330 | " charge=%7.2f padc=%7.2f adc=%04d ZS=%04d", | |
331 | pedestals.ID0(),pedestals.ID1(),channel, | |
332 | a0, a1, thres, pedestalMean, pedestalSigma, adcNoise, | |
333 | charge, padc, adc, TMath::Nint(pedestalMean + fgNSigmas*pedestalSigma + 0.5))); | |
334 | ||
ec9acc85 | 335 | adc = 0; |
b74ca120 | 336 | } |
337 | ||
338 | // be sure we stick to 12 bits. | |
339 | if ( adc > kMaxADC ) | |
340 | { | |
341 | adc = kMaxADC; | |
342 | } | |
343 | ||
344 | return adc; | |
345 | } | |
346 | ||
9ec6a948 | 347 | //_____________________________________________________________________________ |
348 | void | |
ca8c8223 | 349 | AliMUONDigitizerV3::CreateInputDigitStores() |
9ec6a948 | 350 | { |
ca8c8223 | 351 | /// Create input digit stores |
352 | /// | |
9ec6a948 | 353 | |
ca8c8223 | 354 | if (fInputDigitStores) |
355 | { | |
356 | AliFatal("Should be called only once !"); | |
357 | } | |
358 | ||
359 | fInputDigitStores = new TObjArray; | |
360 | ||
361 | fInputDigitStores->SetOwner(kTRUE); | |
9ec6a948 | 362 | |
363 | for ( Int_t iFile = 0; iFile < fManager->GetNinputs(); ++iFile ) | |
364 | { | |
365 | AliLoader* inputLoader = GetLoader(fManager->GetInputFolderName(iFile)); | |
366 | ||
367 | inputLoader->LoadSDigits("READ"); | |
368 | ||
369 | TTree* iTreeS = inputLoader->TreeS(); | |
370 | if (!iTreeS) | |
371 | { | |
372 | AliFatal(Form("Could not get access to input file #%d",iFile)); | |
373 | } | |
374 | ||
ca8c8223 | 375 | fInputDigitStores->AddAt(AliMUONVDigitStore::Create(*iTreeS),iFile); |
9ec6a948 | 376 | } |
377 | } | |
378 | ||
92aeef15 | 379 | //_____________________________________________________________________________ |
380 | void | |
381 | AliMUONDigitizerV3::Exec(Option_t*) | |
382 | { | |
9265505b | 383 | /// Main method. |
384 | /// We first loop over input files, and merge the sdigits we found there. | |
385 | /// Second, we digitize all the resulting sdigits | |
386 | /// Then we generate noise-only digits (for tracker only) | |
387 | /// And we finally generate the trigger outputs. | |
4ce497c4 | 388 | |
99c136e1 | 389 | AliCodeTimerAuto("",0) |
b74ca120 | 390 | |
92aeef15 | 391 | if ( fManager->GetNinputs() == 0 ) |
392 | { | |
393 | AliWarning("No input set. Nothing to do."); | |
394 | return; | |
395 | } | |
396 | ||
397 | if ( !fIsInitialized ) | |
398 | { | |
399 | AliError("Not initialized. Cannot perform the work. Sorry"); | |
400 | return; | |
401 | } | |
402 | ||
403 | Int_t nInputFiles = fManager->GetNinputs(); | |
404 | ||
40e382ae | 405 | AliLoader* outputLoader = GetLoader(fManager->GetOutputFolderName()); |
406 | ||
407 | outputLoader->MakeDigitsContainer(); | |
408 | ||
409 | TTree* oTreeD = outputLoader->TreeD(); | |
410 | ||
411 | if (!oTreeD) | |
92aeef15 | 412 | { |
40e382ae | 413 | AliFatal("Cannot create output TreeD"); |
92aeef15 | 414 | } |
40e382ae | 415 | |
92aeef15 | 416 | // Loop over all the input files, and merge the sdigits found in those |
417 | // files. | |
40e382ae | 418 | |
92aeef15 | 419 | for ( Int_t iFile = 0; iFile < nInputFiles; ++iFile ) |
5d950f54 | 420 | { |
40e382ae | 421 | AliLoader* inputLoader = GetLoader(fManager->GetInputFolderName(iFile)); |
422 | ||
423 | inputLoader->LoadSDigits("READ"); | |
424 | ||
425 | TTree* iTreeS = inputLoader->TreeS(); | |
426 | if (!iTreeS) | |
92aeef15 | 427 | { |
428 | AliFatal(Form("Could not get access to input file #%d",iFile)); | |
429 | } | |
9ec6a948 | 430 | |
ca8c8223 | 431 | if (!fInputDigitStores) |
9ec6a948 | 432 | { |
ca8c8223 | 433 | CreateInputDigitStores(); |
9ec6a948 | 434 | } |
40e382ae | 435 | |
ca8c8223 | 436 | AliMUONVDigitStore* dstore = static_cast<AliMUONVDigitStore*>(fInputDigitStores->At(iFile)); |
437 | ||
438 | dstore->Connect(*iTreeS); | |
40e382ae | 439 | |
ca8c8223 | 440 | iTreeS->GetEvent(0); |
441 | ||
442 | MergeWithSDigits(fDigitStore,*dstore,fManager->GetMask(iFile)); | |
05314992 | 443 | |
40e382ae | 444 | inputLoader->UnloadSDigits(); |
05314992 | 445 | |
ca8c8223 | 446 | dstore->Clear(); |
92aeef15 | 447 | } |
5d950f54 | 448 | |
92aeef15 | 449 | |
450 | // At this point, we do have digit arrays (one per chamber) which contains | |
451 | // the merging of all the sdigits of the input file(s). | |
452 | // We now massage them to apply the detector response, i.e. this | |
453 | // is here that we do the "digitization" work. | |
454 | ||
40e382ae | 455 | if (!fOutputDigitStore) |
456 | { | |
457 | fOutputDigitStore = fDigitStore->Create(); | |
458 | } | |
459 | ||
8c0b5e70 | 460 | if ( fGenerateNoisyDigits>=2 ) |
461 | { | |
462 | // Generate noise-only digits for trigger. | |
463 | GenerateNoisyDigitsForTrigger(*fDigitStore); | |
464 | } | |
40e382ae | 465 | ApplyResponse(*fDigitStore,*fOutputDigitStore); |
5d950f54 | 466 | |
4ce497c4 | 467 | if ( fGenerateNoisyDigits ) |
468 | { | |
469 | // Generate noise-only digits for tracker. | |
40e382ae | 470 | GenerateNoisyDigits(*fOutputDigitStore); |
4ce497c4 | 471 | } |
472 | ||
92aeef15 | 473 | // We generate the global and local trigger decisions. |
40e382ae | 474 | fTriggerProcessor->Digits2Trigger(*fOutputDigitStore,*fTriggerStore); |
475 | ||
476 | // Prepare output tree | |
477 | Bool_t okD = fOutputDigitStore->Connect(*oTreeD,kFALSE); | |
478 | Bool_t okT = fTriggerStore->Connect(*oTreeD,kFALSE); | |
479 | if (!okD || !okT) | |
480 | { | |
481 | AliError(Form("Could not make branch : Digit %d Trigger %d",okD,okT)); | |
482 | return; | |
483 | } | |
92aeef15 | 484 | |
485 | // Fill the output treeD | |
40e382ae | 486 | oTreeD->Fill(); |
92aeef15 | 487 | |
488 | // Write to the output tree(D). | |
489 | // Please note that as GlobalTrigger, LocalTrigger and Digits are in the same | |
490 | // tree (=TreeD) in different branches, this WriteDigits in fact writes all of | |
491 | // the 3 branches. | |
40e382ae | 492 | outputLoader->WriteDigits("OVERWRITE"); |
92aeef15 | 493 | |
40e382ae | 494 | outputLoader->UnloadDigits(); |
4ce497c4 | 495 | |
40e382ae | 496 | // Finally, we clean up after ourselves. |
497 | fTriggerStore->Clear(); | |
498 | fDigitStore->Clear(); | |
499 | fOutputDigitStore->Clear(); | |
92aeef15 | 500 | } |
501 | ||
4ce497c4 | 502 | |
4ce497c4 | 503 | //_____________________________________________________________________________ |
504 | void | |
40e382ae | 505 | AliMUONDigitizerV3::GenerateNoisyDigits(AliMUONVDigitStore& digitStore) |
4ce497c4 | 506 | { |
9265505b | 507 | /// According to a given probability, generate digits that |
508 | /// have a signal above the noise cut (ped+n*sigma_ped), i.e. digits | |
509 | /// that are "only noise". | |
4ce497c4 | 510 | |
99c136e1 | 511 | AliCodeTimerAuto("",0) |
b74ca120 | 512 | |
4ce497c4 | 513 | for ( Int_t i = 0; i < AliMUONConstants::NTrackingCh(); ++i ) |
514 | { | |
515 | AliMpDEIterator it; | |
516 | ||
517 | it.First(i); | |
518 | ||
519 | while ( !it.IsDone() ) | |
520 | { | |
521 | for ( Int_t cathode = 0; cathode < 2; ++cathode ) | |
522 | { | |
40e382ae | 523 | GenerateNoisyDigitsForOneCathode(digitStore,it.CurrentDEId(),cathode); |
4ce497c4 | 524 | } |
525 | it.Next(); | |
526 | } | |
527 | } | |
4ce497c4 | 528 | } |
529 | ||
530 | //_____________________________________________________________________________ | |
531 | void | |
40e382ae | 532 | AliMUONDigitizerV3::GenerateNoisyDigitsForOneCathode(AliMUONVDigitStore& digitStore, |
533 | Int_t detElemId, Int_t cathode) | |
4ce497c4 | 534 | { |
9265505b | 535 | /// Generate noise-only digits for one cathode of one detection element. |
536 | /// Called by GenerateNoisyDigits() | |
4ce497c4 | 537 | |
9265505b | 538 | const AliMpVSegmentation* seg |
866c3232 | 539 | = AliMpSegmentation::Instance()->GetMpSegmentation(detElemId,AliMp::GetCathodType(cathode)); |
4ce497c4 | 540 | Int_t nofPads = seg->NofPads(); |
541 | ||
542 | Int_t maxIx = seg->MaxPadIndexX(); | |
543 | Int_t maxIy = seg->MaxPadIndexY(); | |
544 | ||
5c083cba | 545 | static const Double_t kProbToBeOutsideNsigmas = TMath::Erfc(fgNSigmas/TMath::Sqrt(2.0)) / 2. ; |
4ce497c4 | 546 | |
84aac932 | 547 | Int_t nofNoisyPads = TMath::Nint(kProbToBeOutsideNsigmas*nofPads); |
4ce497c4 | 548 | if ( !nofNoisyPads ) return; |
549 | ||
550 | nofNoisyPads = | |
551 | TMath::Nint(gRandom->Gaus(nofNoisyPads, | |
552 | nofNoisyPads/TMath::Sqrt(nofNoisyPads))); | |
553 | ||
554 | AliDebug(3,Form("DE %d cath %d nofNoisyPads %d",detElemId,cathode,nofNoisyPads)); | |
555 | ||
40e382ae | 556 | for ( Int_t i = 0; i < nofNoisyPads; ++i ) |
4ce497c4 | 557 | { |
558 | Int_t ix(-1); | |
559 | Int_t iy(-1); | |
40e382ae | 560 | AliMpPad pad; |
561 | ||
4ce497c4 | 562 | do { |
563 | ix = gRandom->Integer(maxIx+1); | |
564 | iy = gRandom->Integer(maxIy+1); | |
168e9c4d | 565 | pad = seg->PadByIndices(ix,iy,kFALSE); |
40e382ae | 566 | } while ( !pad.IsValid() ); |
567 | ||
168e9c4d | 568 | Int_t manuId = pad.GetManuId(); |
569 | Int_t manuChannel = pad.GetManuChannel(); | |
40e382ae | 570 | |
4ce497c4 | 571 | AliMUONVCalibParam* pedestals = fCalibrationData->Pedestals(detElemId,manuId); |
572 | ||
ad26d4f6 | 573 | if (!pedestals) |
574 | { | |
575 | // no pedestal available for this channel, simply give up | |
40e382ae | 576 | continue; |
ad26d4f6 | 577 | } |
578 | ||
40e382ae | 579 | AliMUONVDigit* d = digitStore.CreateDigit(detElemId,manuId,manuChannel,cathode); |
580 | ||
581 | d->SetPadXY(ix,iy); | |
582 | ||
ec9acc85 | 583 | d->SetCharge(0.0); // charge is zero, the ApplyResponseToTrackerDigit will add the noise |
40e382ae | 584 | d->NoiseOnly(kTRUE); |
ec9acc85 | 585 | ApplyResponseToTrackerDigit(*d,kTRUE); |
cf27231a | 586 | if ( d->ADC() > 0 ) |
4ce497c4 | 587 | { |
40e382ae | 588 | Bool_t ok = digitStore.Add(*d,AliMUONVDigitStore::kDeny); |
589 | // this can happen (that we randomly chose a digit that is | |
590 | // already there). We simply ignore this, but log the occurence | |
591 | // to cross-check that it's not too frequent. | |
592 | if (!ok) | |
593 | { | |
594 | fLogger->Log("Collision while adding noiseOnly digit"); | |
595 | } | |
596 | else | |
597 | { | |
598 | fLogger->Log("Added noiseOnly digit"); | |
599 | } | |
4ce497c4 | 600 | } |
40e382ae | 601 | delete d; |
4ce497c4 | 602 | } |
603 | } | |
604 | ||
8c0b5e70 | 605 | |
606 | //_____________________________________________________________________________ | |
607 | void | |
608 | AliMUONDigitizerV3::GenerateNoisyDigitsForTrigger(AliMUONVDigitStore& digitStore) | |
609 | { | |
610 | /// Generate noise-only digits for one cathode of one detection element. | |
611 | /// Called by GenerateNoisyDigits() | |
612 | ||
613 | if ( !fNoiseFunctionTrig ) | |
614 | { | |
615 | fNoiseFunctionTrig = new TF1("AliMUONDigitizerV3::fNoiseFunctionTrig","landau", | |
616 | 50.,270.); | |
617 | ||
618 | fNoiseFunctionTrig->SetParameters(3.91070e+02, 9.85026, 9.35881e-02); | |
619 | } | |
620 | ||
621 | AliMpPad pad[2]; | |
622 | AliMUONVDigit *d[2]={0x0}; | |
623 | ||
624 | for ( Int_t chamberId = AliMUONConstants::NTrackingCh(); chamberId < AliMUONConstants::NCh(); ++chamberId ) | |
625 | { | |
626 | ||
627 | Int_t nofNoisyPads = 50; | |
628 | ||
629 | Float_t r=-1, fi = 0., gx, gy, x, y, z, xg01, yg01, zg, xg02, yg02; | |
630 | AliMpDEIterator it; | |
631 | ||
632 | AliDebug(3,Form("Chamber %d nofNoisyPads %d",chamberId,nofNoisyPads)); | |
633 | ||
634 | for ( Int_t i = 0; i < nofNoisyPads; ++i ) | |
635 | { | |
636 | //printf("Generating noise %i\n",i); | |
637 | Int_t ix(-1); | |
638 | Int_t iy(-1); | |
639 | Bool_t isOk = kFALSE; | |
640 | Int_t detElemId = -1; | |
641 | do { | |
642 | //r = gRandom->Landau(9.85026, 9.35881e-02); | |
643 | r = fNoiseFunctionTrig->GetRandom(); | |
644 | fi = 2. * TMath::Pi() * gRandom->Rndm(); | |
645 | //printf("r = %f\tfi = %f\n", r, fi); | |
646 | gx = r * TMath::Cos(fi); | |
647 | gy = r * TMath::Sin(fi); | |
648 | ||
649 | for ( it.First(chamberId); ! it.IsDone(); it.Next() ){ | |
650 | Int_t currDetElemId = it.CurrentDEId(); | |
651 | const AliMpVSegmentation* seg | |
652 | = AliMpSegmentation::Instance()->GetMpSegmentation(currDetElemId,AliMp::GetCathodType(0)); | |
653 | if (!seg) continue; | |
6e97fbb8 | 654 | Float_t deltax = seg->GetDimensionX(); |
655 | Float_t deltay = seg->GetDimensionY(); | |
8c0b5e70 | 656 | GetTransformer()->Local2Global(currDetElemId, -deltax, -deltay, 0, xg01, yg01, zg); |
657 | GetTransformer()->Local2Global(currDetElemId, deltax, deltay, 0, xg02, yg02, zg); | |
658 | Float_t xg1 = xg01, xg2 = xg02, yg1 = yg01, yg2 = yg02; | |
659 | if(xg01>xg02){ | |
660 | xg1 = xg02; | |
661 | xg2 = xg01; | |
662 | } | |
663 | if(yg01>yg02){ | |
664 | yg1 = yg02; | |
665 | yg2 = yg01; | |
666 | } | |
667 | if(gx>=xg1 && gx<=xg2 && gy>=yg1 && gy<=yg2){ | |
668 | detElemId = currDetElemId; | |
669 | GetTransformer()->Global2Local(detElemId, gx, gy, 0, x, y, z); | |
6e97fbb8 | 670 | pad[0] = seg->PadByPosition(x,y,kFALSE); |
8c0b5e70 | 671 | if(!pad[0].IsValid()) continue; |
672 | isOk = kTRUE; | |
673 | break; | |
674 | } | |
675 | } // loop on slats | |
676 | } while ( !isOk ); | |
677 | ||
678 | const AliMpVSegmentation* seg1 | |
679 | = AliMpSegmentation::Instance()->GetMpSegmentation(detElemId,AliMp::GetCathodType(1)); | |
6e97fbb8 | 680 | pad[1] = seg1->PadByPosition(x,y,kFALSE); |
8c0b5e70 | 681 | |
682 | for ( Int_t cathode = 0; cathode < 2; ++cathode ){ | |
168e9c4d | 683 | Int_t manuId = pad[cathode].GetLocalBoardId(0); |
684 | Int_t manuChannel = pad[cathode].GetLocalBoardChannel(0); | |
8c0b5e70 | 685 | d[cathode] = digitStore.CreateDigit(detElemId,manuId,manuChannel,cathode); |
168e9c4d | 686 | ix = pad[cathode].GetIx(); |
687 | iy = pad[cathode].GetIy(); | |
8c0b5e70 | 688 | d[cathode]->SetPadXY(ix,iy); |
689 | //d[cathode].SetSignal(1); | |
690 | //d[cathode].SetPhysicsSignal(0); | |
691 | d[cathode]->SetCharge(1); | |
692 | d[cathode]->NoiseOnly(kTRUE); | |
693 | AliDebug(3,Form("Adding a pure noise digit :")); | |
694 | ||
695 | Bool_t ok = digitStore.Add(*d[cathode],AliMUONVDigitStore::kDeny); | |
696 | if (!ok) | |
697 | { | |
698 | fLogger->Log("Collision while adding TriggerNoise digit"); | |
699 | } | |
700 | else | |
701 | { | |
702 | fLogger->Log("Added triggerNoise digit"); | |
703 | } | |
704 | } //loop on cathodes | |
705 | } // loop on noisy pads | |
706 | } // loop on chambers | |
707 | } | |
708 | ||
709 | ||
92aeef15 | 710 | //_____________________________________________________________________________ |
40e382ae | 711 | AliLoader* |
712 | AliMUONDigitizerV3::GetLoader(const TString& folderName) | |
92aeef15 | 713 | { |
40e382ae | 714 | /// Get a MUON loader |
9265505b | 715 | |
ad26d4f6 | 716 | AliDebug(2,Form("Getting access to folder %s",folderName.Data())); |
40e382ae | 717 | AliLoader* loader = AliRunLoader::GetDetectorLoader("MUON",folderName.Data()); |
92aeef15 | 718 | if (!loader) |
719 | { | |
720 | AliError(Form("Could not get MuonLoader from folder %s",folderName.Data())); | |
721 | return 0x0; | |
722 | } | |
40e382ae | 723 | return loader; |
92aeef15 | 724 | } |
725 | ||
726 | //_____________________________________________________________________________ | |
727 | Bool_t | |
728 | AliMUONDigitizerV3::Init() | |
729 | { | |
9265505b | 730 | /// Initialization of the TTask : |
40e382ae | 731 | /// a) create the calibrationData, according to run number |
732 | /// b) create the trigger processing task | |
9265505b | 733 | |
ad26d4f6 | 734 | AliDebug(2,""); |
92aeef15 | 735 | |
736 | if ( fIsInitialized ) | |
737 | { | |
738 | AliError("Object already initialized."); | |
739 | return kFALSE; | |
740 | } | |
741 | ||
742 | if (!fManager) | |
743 | { | |
744 | AliError("fManager is null !"); | |
745 | return kFALSE; | |
746 | } | |
747 | ||
331a617a | 748 | // Load mapping |
749 | if ( ! AliMpCDB::LoadDDLStore() ) { | |
88544f7e | 750 | AliFatal("Could not access mapping from OCDB !"); |
751 | } | |
752 | ||
92c23b09 | 753 | if (!fCalibrationData) |
754 | AliFatal("Calibration data object not defined"); | |
755 | ||
ad26d4f6 | 756 | if ( !fCalibrationData->Pedestals() ) |
757 | { | |
758 | AliFatal("Could not access pedestals from OCDB !"); | |
759 | } | |
760 | if ( !fCalibrationData->Gains() ) | |
761 | { | |
762 | AliFatal("Could not access gains from OCDB !"); | |
763 | } | |
92c23b09 | 764 | |
765 | ||
766 | AliInfo("Using trigger configuration from CDB"); | |
767 | ||
40e382ae | 768 | fTriggerProcessor = new AliMUONTriggerElectronics(fCalibrationData); |
4ce497c4 | 769 | |
ad26d4f6 | 770 | AliDebug(1, Form("Will %s generate noise-only digits for tracker", |
771 | (fGenerateNoisyDigits ? "":"NOT"))); | |
772 | ||
92aeef15 | 773 | fIsInitialized = kTRUE; |
774 | return kTRUE; | |
775 | } | |
776 | ||
92aeef15 | 777 | //_____________________________________________________________________________ |
778 | void | |
40e382ae | 779 | AliMUONDigitizerV3::MergeWithSDigits(AliMUONVDigitStore*& outputStore, |
780 | const AliMUONVDigitStore& input, | |
781 | Int_t mask) | |
92aeef15 | 782 | { |
9265505b | 783 | /// Merge the sdigits in inputData with the digits already present in outputData |
92aeef15 | 784 | |
40e382ae | 785 | if ( !outputStore ) outputStore = input.Create(); |
786 | ||
787 | TIter next(input.CreateIterator()); | |
788 | AliMUONVDigit* sdigit; | |
789 | ||
790 | while ( ( sdigit = static_cast<AliMUONVDigit*>(next()) ) ) | |
791 | { | |
792 | // Update the track references using the mask. | |
793 | // FIXME: this is dirty, for backward compatibility only. | |
794 | // Should re-design all this way of keeping track of MC information... | |
795 | if ( mask ) sdigit->PatchTracks(mask); | |
796 | // Then add or update the digit to the output. | |
797 | AliMUONVDigit* added = outputStore->Add(*sdigit,AliMUONVDigitStore::kMerge); | |
798 | if (!added) | |
92aeef15 | 799 | { |
40e382ae | 800 | AliError("Could not add digit in merge mode"); |
92aeef15 | 801 | } |
92aeef15 | 802 | } |
803 | } | |
ec9acc85 | 804 | |
805 | //_____________________________________________________________________________ | |
806 | TF1* | |
807 | AliMUONDigitizerV3::NoiseFunction() | |
808 | { | |
809 | /// Return noise function | |
810 | static TF1* f = 0x0; | |
811 | if (!f) | |
812 | { | |
5c083cba | 813 | f = new TF1("AliMUONDigitizerV3::NoiseFunction","gaus",fgNSigmas,fgNSigmas*10); |
ec9acc85 | 814 | f->SetParameters(1,0,1); |
815 | } | |
816 | return f; | |
817 | } | |
818 |