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