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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 "AliMpIntPair.h" |
39 | #include "AliMpPad.h" | |
40e382ae | 40 | #include "AliMpStationType.h" |
4ce497c4 | 41 | #include "AliMpVSegmentation.h" |
331a617a | 42 | |
43 | #include "AliCDBManager.h" | |
44 | #include "AliCodeTimer.h" | |
45 | #include "AliLog.h" | |
92aeef15 | 46 | #include "AliRun.h" |
47 | #include "AliRunDigitizer.h" | |
48 | #include "AliRunLoader.h" | |
331a617a | 49 | |
866c3232 | 50 | #include <Riostream.h> |
51 | #include <TF1.h> | |
40e382ae | 52 | #include <TFile.h> |
866c3232 | 53 | #include <TMath.h> |
54 | #include <TRandom.h> | |
55 | #include <TString.h> | |
40e382ae | 56 | #include <TSystem.h> |
57 | ||
3d1463c8 | 58 | //----------------------------------------------------------------------------- |
9265505b | 59 | /// \class AliMUONDigitizerV3 |
4ce497c4 | 60 | /// The digitizer is performing the transformation to go from SDigits (digits |
61 | /// w/o any electronic noise) to Digits (w/ electronic noise, and decalibration) | |
62 | /// | |
63 | /// The decalibration is performed by doing the reverse operation of the | |
64 | /// calibration, that is we do (Signal+pedestal)/gain -> ADC | |
65 | /// | |
66 | /// Note also that the digitizer takes care of merging sdigits that belongs | |
67 | /// to the same pad, either because we're merging several input sdigit files | |
68 | /// or with a single file because the sdigitizer does not merge sdigits itself | |
69 | /// (for performance reason mainly, and because anyway we know we have to do it | |
70 | /// here, at the digitization level). | |
71 | /// | |
c4ee792d | 72 | /// \author Laurent Aphecetche |
3d1463c8 | 73 | //----------------------------------------------------------------------------- |
4ce497c4 | 74 | |
75 | namespace | |
76 | { | |
77 | AliMUON* muon() | |
78 | { | |
79 | return static_cast<AliMUON*>(gAlice->GetModule("MUON")); | |
80 | } | |
8c0b5e70 | 81 | |
82 | //ADDED for trigger noise | |
83 | const AliMUONGeometryTransformer* GetTransformer() | |
84 | { | |
85 | return muon()->GetGeometryTransformer(); | |
86 | } | |
4ce497c4 | 87 | } |
88 | ||
89 | const Double_t AliMUONDigitizerV3::fgkNSigmas=3; | |
90 | ||
9265505b | 91 | /// \cond CLASSIMP |
92aeef15 | 92 | ClassImp(AliMUONDigitizerV3) |
9265505b | 93 | /// \endcond |
92aeef15 | 94 | |
95 | //_____________________________________________________________________________ | |
96 | AliMUONDigitizerV3::AliMUONDigitizerV3(AliRunDigitizer* manager, | |
8c0b5e70 | 97 | Int_t generateNoisyDigits) |
92aeef15 | 98 | : AliDigitizer(manager), |
92aeef15 | 99 | fIsInitialized(kFALSE), |
92aeef15 | 100 | fCalibrationData(0x0), |
101 | fTriggerProcessor(0x0), | |
8c0b5e70 | 102 | fNoiseFunctionTrig(0x0), |
ec9acc85 | 103 | fGenerateNoisyDigits(generateNoisyDigits), |
104 | fLogger(new AliMUONLogger(1000)), | |
40e382ae | 105 | fTriggerStore(new AliMUONTriggerStoreV1), |
106 | fDigitStore(0x0), | |
9ec6a948 | 107 | fOutputDigitStore(0x0), |
108 | fInputDigitStore(0x0) | |
92aeef15 | 109 | { |
9265505b | 110 | /// Ctor. |
111 | ||
92aeef15 | 112 | AliDebug(1,Form("AliRunDigitizer=%p",fManager)); |
ec9acc85 | 113 | |
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 | |
92c23b09 | 123 | // delete fCalibrationData; |
92aeef15 | 124 | delete fTriggerProcessor; |
8c0b5e70 | 125 | delete fNoiseFunctionTrig; |
40e382ae | 126 | delete fTriggerStore; |
127 | delete fDigitStore; | |
128 | delete fOutputDigitStore; | |
9ec6a948 | 129 | delete fInputDigitStore; |
130 | ||
ad26d4f6 | 131 | AliInfo("Summary of messages"); |
132 | fLogger->Print(); | |
4ce497c4 | 133 | |
ad26d4f6 | 134 | delete fLogger; |
92aeef15 | 135 | } |
136 | ||
137 | //_____________________________________________________________________________ | |
138 | void | |
40e382ae | 139 | AliMUONDigitizerV3::ApplyResponseToTrackerDigit(AliMUONVDigit& digit, Bool_t addNoise) |
92aeef15 | 140 | { |
9265505b | 141 | /// For tracking digits, starting from an ideal digit's charge, we : |
142 | /// | |
cf27231a | 143 | /// - "divide" by a gain (thus decalibrating the digit) |
9265505b | 144 | /// - add a pedestal (thus decalibrating the digit) |
b74ca120 | 145 | /// - add some electronics noise (thus leading to a realistic adc), if requested to do so |
9265505b | 146 | /// - sets the signal to zero if below 3*sigma of the noise |
59b91539 | 147 | |
cf27231a | 148 | Float_t charge = digit.Charge(); |
149 | ||
150 | // We set the charge to 0, as the only relevant piece of information | |
151 | // after Digitization is the ADC value. | |
152 | digit.SetCharge(0); | |
b74ca120 | 153 | |
4ce497c4 | 154 | Int_t detElemId = digit.DetElemId(); |
92aeef15 | 155 | Int_t manuId = digit.ManuId(); |
92aeef15 | 156 | |
4ce497c4 | 157 | AliMUONVCalibParam* pedestal = fCalibrationData->Pedestals(detElemId,manuId); |
92aeef15 | 158 | if (!pedestal) |
ad26d4f6 | 159 | { |
160 | fLogger->Log(Form("%s:%d:Could not get pedestal for DE=%4d manuId=%4d. Disabling.", | |
161 | __FILE__,__LINE__, | |
162 | detElemId,manuId)); | |
ad26d4f6 | 163 | digit.SetADC(0); |
164 | return; | |
165 | } | |
59b91539 | 166 | |
627ba19f | 167 | Int_t manuChannel = digit.ManuChannel(); |
168 | ||
169 | if ( pedestal->ValueAsFloat(manuChannel,0) == AliMUONVCalibParam::InvalidFloatValue() || | |
170 | pedestal->ValueAsFloat(manuChannel,1) == AliMUONVCalibParam::InvalidFloatValue() ) | |
171 | { | |
172 | // protection against invalid pedestal value | |
173 | digit.SetADC(0); | |
174 | return; | |
175 | } | |
176 | ||
4ce497c4 | 177 | AliMUONVCalibParam* gain = fCalibrationData->Gains(detElemId,manuId); |
92aeef15 | 178 | if (!gain) |
ad26d4f6 | 179 | { |
180 | fLogger->Log(Form("%s:%d:Could not get gain for DE=%4d manuId=%4d. Disabling.", | |
181 | __FILE__,__LINE__, | |
182 | detElemId,manuId)); | |
ad26d4f6 | 183 | digit.SetADC(0); |
184 | return; | |
185 | } | |
cf27231a | 186 | |
ec9acc85 | 187 | Int_t adc = DecalibrateTrackerDigit(*pedestal,*gain,manuChannel,charge,addNoise, |
188 | digit.IsNoiseOnly()); | |
59b91539 | 189 | |
92aeef15 | 190 | digit.SetADC(adc); |
191 | } | |
192 | ||
193 | //_____________________________________________________________________________ | |
194 | void | |
40e382ae | 195 | AliMUONDigitizerV3::ApplyResponse(const AliMUONVDigitStore& store, |
196 | AliMUONVDigitStore& filteredStore) | |
92aeef15 | 197 | { |
9265505b | 198 | /// Loop over all chamber digits, and apply the response to them |
199 | /// Note that this method may remove digits. | |
200 | ||
40e382ae | 201 | filteredStore.Clear(); |
202 | ||
4ce497c4 | 203 | const Bool_t kAddNoise = kTRUE; |
204 | ||
40e382ae | 205 | TIter next(store.CreateIterator()); |
206 | AliMUONVDigit* digit; | |
207 | ||
208 | while ( ( digit = static_cast<AliMUONVDigit*>(next()) ) ) | |
4ce497c4 | 209 | { |
40e382ae | 210 | AliMp::StationType stationType = AliMpDEManager::GetStationType(digit->DetElemId()); |
211 | ||
212 | if ( stationType != AliMp::kStationTrigger ) | |
92aeef15 | 213 | { |
40e382ae | 214 | ApplyResponseToTrackerDigit(*digit,kAddNoise); |
92aeef15 | 215 | } |
7d7d22a6 | 216 | |
cf27231a | 217 | if ( digit->ADC() > 0 || digit->Charge() > 0 ) |
40e382ae | 218 | { |
219 | filteredStore.Add(*digit,AliMUONVDigitStore::kIgnore); | |
92aeef15 | 220 | } |
92aeef15 | 221 | } |
40e382ae | 222 | } |
92aeef15 | 223 | |
b74ca120 | 224 | //_____________________________________________________________________________ |
225 | Int_t | |
226 | AliMUONDigitizerV3::DecalibrateTrackerDigit(const AliMUONVCalibParam& pedestals, | |
227 | const AliMUONVCalibParam& gains, | |
228 | Int_t channel, | |
229 | Float_t charge, | |
ec9acc85 | 230 | Bool_t addNoise, |
231 | Bool_t noiseOnly) | |
b74ca120 | 232 | { |
233 | /// Decalibrate (i.e. go from charge to adc) a tracker digit, given its | |
234 | /// pedestal and gain parameters. | |
235 | /// Must insure before calling that channel is valid (i.e. between 0 and | |
236 | /// pedestals or gains->GetSize()-1, but also corresponding to a valid channel | |
237 | /// otherwise results are not predictible...) | |
238 | ||
239 | static const Int_t kMaxADC = (1<<12)-1; // We code the charge on a 12 bits ADC. | |
240 | ||
241 | Float_t pedestalMean = pedestals.ValueAsFloat(channel,0); | |
242 | Float_t pedestalSigma = pedestals.ValueAsFloat(channel,1); | |
243 | ||
ec9acc85 | 244 | AliDebugClass(1,Form("DE %04d MANU %04d CH %02d PEDMEAN %7.2f PEDSIGMA %7.2f", |
245 | pedestals.ID0(),pedestals.ID1(),channel,pedestalMean,pedestalSigma)); | |
246 | ||
b74ca120 | 247 | Float_t a0 = gains.ValueAsFloat(channel,0); |
248 | Float_t a1 = gains.ValueAsFloat(channel,1); | |
249 | Int_t thres = gains.ValueAsInt(channel,2); | |
250 | Int_t qual = gains.ValueAsInt(channel,3); | |
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 | ||
326 | if ( adc < TMath::Nint(pedestalMean + fgkNSigmas*pedestalSigma + 0.5) ) | |
327 | { | |
328 | adc = 0; | |
b74ca120 | 329 | } |
330 | ||
331 | // be sure we stick to 12 bits. | |
332 | if ( adc > kMaxADC ) | |
333 | { | |
334 | adc = kMaxADC; | |
335 | } | |
336 | ||
337 | return adc; | |
338 | } | |
339 | ||
9ec6a948 | 340 | //_____________________________________________________________________________ |
341 | void | |
342 | AliMUONDigitizerV3::CreateInputDigitStore() | |
343 | { | |
344 | /// Create an input digit store, and check that all input files | |
345 | /// actually contains the same type of AliMUONVDigitStore | |
346 | ||
347 | fInputDigitStore = 0x0; | |
348 | ||
349 | for ( Int_t iFile = 0; iFile < fManager->GetNinputs(); ++iFile ) | |
350 | { | |
351 | AliLoader* inputLoader = GetLoader(fManager->GetInputFolderName(iFile)); | |
352 | ||
353 | inputLoader->LoadSDigits("READ"); | |
354 | ||
355 | TTree* iTreeS = inputLoader->TreeS(); | |
356 | if (!iTreeS) | |
357 | { | |
358 | AliFatal(Form("Could not get access to input file #%d",iFile)); | |
359 | } | |
360 | ||
361 | AliMUONVDigitStore* inputStore = AliMUONVDigitStore::Create(*iTreeS); | |
362 | ||
363 | if (!fInputDigitStore) | |
364 | { | |
365 | fInputDigitStore = inputStore; | |
366 | } | |
367 | else | |
368 | { | |
369 | if ( inputStore->IsA() != fInputDigitStore->IsA() ) | |
370 | { | |
371 | AliFatal("Got different types of AliMUONVDigitStore here. Please implement me."); | |
372 | } | |
373 | } | |
374 | } | |
375 | } | |
376 | ||
92aeef15 | 377 | //_____________________________________________________________________________ |
378 | void | |
379 | AliMUONDigitizerV3::Exec(Option_t*) | |
380 | { | |
9265505b | 381 | /// Main method. |
382 | /// We first loop over input files, and merge the sdigits we found there. | |
383 | /// Second, we digitize all the resulting sdigits | |
384 | /// Then we generate noise-only digits (for tracker only) | |
385 | /// And we finally generate the trigger outputs. | |
4ce497c4 | 386 | |
b74ca120 | 387 | AliCodeTimerAuto("") |
388 | ||
92aeef15 | 389 | AliDebug(1, "Running digitizer."); |
390 | ||
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 ) |
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 | |
431 | if (!fInputDigitStore) | |
432 | { | |
433 | CreateInputDigitStore(); | |
434 | } | |
435 | fInputDigitStore->Connect(*iTreeS); | |
40e382ae | 436 | |
437 | iTreeS->GetEvent(0); | |
438 | ||
9ec6a948 | 439 | MergeWithSDigits(fDigitStore,*fInputDigitStore,fManager->GetMask(iFile)); |
05314992 | 440 | |
40e382ae | 441 | inputLoader->UnloadSDigits(); |
05314992 | 442 | |
9ec6a948 | 443 | fInputDigitStore->Clear(); |
92aeef15 | 444 | } |
445 | ||
446 | // At this point, we do have digit arrays (one per chamber) which contains | |
447 | // the merging of all the sdigits of the input file(s). | |
448 | // We now massage them to apply the detector response, i.e. this | |
449 | // is here that we do the "digitization" work. | |
450 | ||
40e382ae | 451 | if (!fOutputDigitStore) |
452 | { | |
453 | fOutputDigitStore = fDigitStore->Create(); | |
454 | } | |
455 | ||
8c0b5e70 | 456 | if ( fGenerateNoisyDigits>=2 ) |
457 | { | |
458 | // Generate noise-only digits for trigger. | |
459 | GenerateNoisyDigitsForTrigger(*fDigitStore); | |
460 | } | |
461 | ||
40e382ae | 462 | ApplyResponse(*fDigitStore,*fOutputDigitStore); |
4ce497c4 | 463 | |
464 | if ( fGenerateNoisyDigits ) | |
465 | { | |
466 | // Generate noise-only digits for tracker. | |
40e382ae | 467 | GenerateNoisyDigits(*fOutputDigitStore); |
4ce497c4 | 468 | } |
469 | ||
92aeef15 | 470 | // We generate the global and local trigger decisions. |
40e382ae | 471 | fTriggerProcessor->Digits2Trigger(*fOutputDigitStore,*fTriggerStore); |
472 | ||
473 | // Prepare output tree | |
474 | Bool_t okD = fOutputDigitStore->Connect(*oTreeD,kFALSE); | |
475 | Bool_t okT = fTriggerStore->Connect(*oTreeD,kFALSE); | |
476 | if (!okD || !okT) | |
477 | { | |
478 | AliError(Form("Could not make branch : Digit %d Trigger %d",okD,okT)); | |
479 | return; | |
480 | } | |
92aeef15 | 481 | |
482 | // Fill the output treeD | |
40e382ae | 483 | oTreeD->Fill(); |
92aeef15 | 484 | |
485 | // Write to the output tree(D). | |
486 | // Please note that as GlobalTrigger, LocalTrigger and Digits are in the same | |
487 | // tree (=TreeD) in different branches, this WriteDigits in fact writes all of | |
488 | // the 3 branches. | |
40e382ae | 489 | outputLoader->WriteDigits("OVERWRITE"); |
92aeef15 | 490 | |
40e382ae | 491 | outputLoader->UnloadDigits(); |
4ce497c4 | 492 | |
40e382ae | 493 | // Finally, we clean up after ourselves. |
494 | fTriggerStore->Clear(); | |
495 | fDigitStore->Clear(); | |
496 | fOutputDigitStore->Clear(); | |
92aeef15 | 497 | } |
498 | ||
4ce497c4 | 499 | |
4ce497c4 | 500 | //_____________________________________________________________________________ |
501 | void | |
40e382ae | 502 | AliMUONDigitizerV3::GenerateNoisyDigits(AliMUONVDigitStore& digitStore) |
4ce497c4 | 503 | { |
9265505b | 504 | /// According to a given probability, generate digits that |
505 | /// have a signal above the noise cut (ped+n*sigma_ped), i.e. digits | |
506 | /// that are "only noise". | |
4ce497c4 | 507 | |
b74ca120 | 508 | AliCodeTimerAuto("") |
509 | ||
4ce497c4 | 510 | for ( Int_t i = 0; i < AliMUONConstants::NTrackingCh(); ++i ) |
511 | { | |
512 | AliMpDEIterator it; | |
513 | ||
514 | it.First(i); | |
515 | ||
516 | while ( !it.IsDone() ) | |
517 | { | |
518 | for ( Int_t cathode = 0; cathode < 2; ++cathode ) | |
519 | { | |
40e382ae | 520 | GenerateNoisyDigitsForOneCathode(digitStore,it.CurrentDEId(),cathode); |
4ce497c4 | 521 | } |
522 | it.Next(); | |
523 | } | |
524 | } | |
4ce497c4 | 525 | } |
526 | ||
527 | //_____________________________________________________________________________ | |
528 | void | |
40e382ae | 529 | AliMUONDigitizerV3::GenerateNoisyDigitsForOneCathode(AliMUONVDigitStore& digitStore, |
530 | Int_t detElemId, Int_t cathode) | |
4ce497c4 | 531 | { |
9265505b | 532 | /// Generate noise-only digits for one cathode of one detection element. |
533 | /// Called by GenerateNoisyDigits() | |
4ce497c4 | 534 | |
9265505b | 535 | const AliMpVSegmentation* seg |
866c3232 | 536 | = AliMpSegmentation::Instance()->GetMpSegmentation(detElemId,AliMp::GetCathodType(cathode)); |
4ce497c4 | 537 | Int_t nofPads = seg->NofPads(); |
538 | ||
539 | Int_t maxIx = seg->MaxPadIndexX(); | |
540 | Int_t maxIy = seg->MaxPadIndexY(); | |
541 | ||
cdea095e | 542 | static const Double_t kProbToBeOutsideNsigmas = TMath::Erfc(fgkNSigmas/TMath::Sqrt(2.0)) / 2. ; |
4ce497c4 | 543 | |
84aac932 | 544 | Int_t nofNoisyPads = TMath::Nint(kProbToBeOutsideNsigmas*nofPads); |
4ce497c4 | 545 | if ( !nofNoisyPads ) return; |
546 | ||
547 | nofNoisyPads = | |
548 | TMath::Nint(gRandom->Gaus(nofNoisyPads, | |
549 | nofNoisyPads/TMath::Sqrt(nofNoisyPads))); | |
550 | ||
551 | AliDebug(3,Form("DE %d cath %d nofNoisyPads %d",detElemId,cathode,nofNoisyPads)); | |
552 | ||
40e382ae | 553 | for ( Int_t i = 0; i < nofNoisyPads; ++i ) |
4ce497c4 | 554 | { |
555 | Int_t ix(-1); | |
556 | Int_t iy(-1); | |
40e382ae | 557 | AliMpPad pad; |
558 | ||
4ce497c4 | 559 | do { |
560 | ix = gRandom->Integer(maxIx+1); | |
561 | iy = gRandom->Integer(maxIy+1); | |
40e382ae | 562 | pad = seg->PadByIndices(AliMpIntPair(ix,iy),kFALSE); |
563 | } while ( !pad.IsValid() ); | |
564 | ||
4ce497c4 | 565 | Int_t manuId = pad.GetLocation().GetFirst(); |
40e382ae | 566 | Int_t manuChannel = pad.GetLocation().GetSecond(); |
567 | ||
4ce497c4 | 568 | AliMUONVCalibParam* pedestals = fCalibrationData->Pedestals(detElemId,manuId); |
569 | ||
ad26d4f6 | 570 | if (!pedestals) |
571 | { | |
572 | // no pedestal available for this channel, simply give up | |
40e382ae | 573 | continue; |
ad26d4f6 | 574 | } |
575 | ||
40e382ae | 576 | AliMUONVDigit* d = digitStore.CreateDigit(detElemId,manuId,manuChannel,cathode); |
577 | ||
578 | d->SetPadXY(ix,iy); | |
579 | ||
ec9acc85 | 580 | d->SetCharge(0.0); // charge is zero, the ApplyResponseToTrackerDigit will add the noise |
40e382ae | 581 | d->NoiseOnly(kTRUE); |
ec9acc85 | 582 | ApplyResponseToTrackerDigit(*d,kTRUE); |
cf27231a | 583 | if ( d->ADC() > 0 ) |
4ce497c4 | 584 | { |
40e382ae | 585 | Bool_t ok = digitStore.Add(*d,AliMUONVDigitStore::kDeny); |
586 | // this can happen (that we randomly chose a digit that is | |
587 | // already there). We simply ignore this, but log the occurence | |
588 | // to cross-check that it's not too frequent. | |
589 | if (!ok) | |
590 | { | |
591 | fLogger->Log("Collision while adding noiseOnly digit"); | |
592 | } | |
593 | else | |
594 | { | |
595 | fLogger->Log("Added noiseOnly digit"); | |
596 | } | |
4ce497c4 | 597 | } |
40e382ae | 598 | delete d; |
4ce497c4 | 599 | } |
600 | } | |
601 | ||
8c0b5e70 | 602 | |
603 | //_____________________________________________________________________________ | |
604 | void | |
605 | AliMUONDigitizerV3::GenerateNoisyDigitsForTrigger(AliMUONVDigitStore& digitStore) | |
606 | { | |
607 | /// Generate noise-only digits for one cathode of one detection element. | |
608 | /// Called by GenerateNoisyDigits() | |
609 | ||
610 | if ( !fNoiseFunctionTrig ) | |
611 | { | |
612 | fNoiseFunctionTrig = new TF1("AliMUONDigitizerV3::fNoiseFunctionTrig","landau", | |
613 | 50.,270.); | |
614 | ||
615 | fNoiseFunctionTrig->SetParameters(3.91070e+02, 9.85026, 9.35881e-02); | |
616 | } | |
617 | ||
618 | AliMpPad pad[2]; | |
619 | AliMUONVDigit *d[2]={0x0}; | |
620 | ||
621 | for ( Int_t chamberId = AliMUONConstants::NTrackingCh(); chamberId < AliMUONConstants::NCh(); ++chamberId ) | |
622 | { | |
623 | ||
624 | Int_t nofNoisyPads = 50; | |
625 | ||
626 | Float_t r=-1, fi = 0., gx, gy, x, y, z, xg01, yg01, zg, xg02, yg02; | |
627 | AliMpDEIterator it; | |
628 | ||
629 | AliDebug(3,Form("Chamber %d nofNoisyPads %d",chamberId,nofNoisyPads)); | |
630 | ||
631 | for ( Int_t i = 0; i < nofNoisyPads; ++i ) | |
632 | { | |
633 | //printf("Generating noise %i\n",i); | |
634 | Int_t ix(-1); | |
635 | Int_t iy(-1); | |
636 | Bool_t isOk = kFALSE; | |
637 | Int_t detElemId = -1; | |
638 | do { | |
639 | //r = gRandom->Landau(9.85026, 9.35881e-02); | |
640 | r = fNoiseFunctionTrig->GetRandom(); | |
641 | fi = 2. * TMath::Pi() * gRandom->Rndm(); | |
642 | //printf("r = %f\tfi = %f\n", r, fi); | |
643 | gx = r * TMath::Cos(fi); | |
644 | gy = r * TMath::Sin(fi); | |
645 | ||
646 | for ( it.First(chamberId); ! it.IsDone(); it.Next() ){ | |
647 | Int_t currDetElemId = it.CurrentDEId(); | |
648 | const AliMpVSegmentation* seg | |
649 | = AliMpSegmentation::Instance()->GetMpSegmentation(currDetElemId,AliMp::GetCathodType(0)); | |
650 | if (!seg) continue; | |
651 | Float_t deltax = seg->Dimensions().X(); | |
652 | Float_t deltay = seg->Dimensions().Y(); | |
653 | GetTransformer()->Local2Global(currDetElemId, -deltax, -deltay, 0, xg01, yg01, zg); | |
654 | GetTransformer()->Local2Global(currDetElemId, deltax, deltay, 0, xg02, yg02, zg); | |
655 | Float_t xg1 = xg01, xg2 = xg02, yg1 = yg01, yg2 = yg02; | |
656 | if(xg01>xg02){ | |
657 | xg1 = xg02; | |
658 | xg2 = xg01; | |
659 | } | |
660 | if(yg01>yg02){ | |
661 | yg1 = yg02; | |
662 | yg2 = yg01; | |
663 | } | |
664 | if(gx>=xg1 && gx<=xg2 && gy>=yg1 && gy<=yg2){ | |
665 | detElemId = currDetElemId; | |
666 | GetTransformer()->Global2Local(detElemId, gx, gy, 0, x, y, z); | |
667 | pad[0] = seg->PadByPosition(TVector2(x,y),kFALSE); | |
668 | if(!pad[0].IsValid()) continue; | |
669 | isOk = kTRUE; | |
670 | break; | |
671 | } | |
672 | } // loop on slats | |
673 | } while ( !isOk ); | |
674 | ||
675 | const AliMpVSegmentation* seg1 | |
676 | = AliMpSegmentation::Instance()->GetMpSegmentation(detElemId,AliMp::GetCathodType(1)); | |
677 | pad[1] = seg1->PadByPosition(TVector2(x,y),kFALSE); | |
678 | ||
679 | for ( Int_t cathode = 0; cathode < 2; ++cathode ){ | |
680 | Int_t manuId = pad[cathode].GetLocation(0).GetFirst(); | |
681 | Int_t manuChannel = pad[cathode].GetLocation(0).GetSecond(); | |
682 | d[cathode] = digitStore.CreateDigit(detElemId,manuId,manuChannel,cathode); | |
683 | ix = pad[cathode].GetIndices().GetFirst(); | |
684 | iy = pad[cathode].GetIndices().GetSecond(); | |
685 | d[cathode]->SetPadXY(ix,iy); | |
686 | //d[cathode].SetSignal(1); | |
687 | //d[cathode].SetPhysicsSignal(0); | |
688 | d[cathode]->SetCharge(1); | |
689 | d[cathode]->NoiseOnly(kTRUE); | |
690 | AliDebug(3,Form("Adding a pure noise digit :")); | |
691 | ||
692 | Bool_t ok = digitStore.Add(*d[cathode],AliMUONVDigitStore::kDeny); | |
693 | if (!ok) | |
694 | { | |
695 | fLogger->Log("Collision while adding TriggerNoise digit"); | |
696 | } | |
697 | else | |
698 | { | |
699 | fLogger->Log("Added triggerNoise digit"); | |
700 | } | |
701 | } //loop on cathodes | |
702 | } // loop on noisy pads | |
703 | } // loop on chambers | |
704 | } | |
705 | ||
706 | ||
92aeef15 | 707 | //_____________________________________________________________________________ |
40e382ae | 708 | AliLoader* |
709 | AliMUONDigitizerV3::GetLoader(const TString& folderName) | |
92aeef15 | 710 | { |
40e382ae | 711 | /// Get a MUON loader |
9265505b | 712 | |
ad26d4f6 | 713 | AliDebug(2,Form("Getting access to folder %s",folderName.Data())); |
40e382ae | 714 | AliLoader* loader = AliRunLoader::GetDetectorLoader("MUON",folderName.Data()); |
92aeef15 | 715 | if (!loader) |
716 | { | |
717 | AliError(Form("Could not get MuonLoader from folder %s",folderName.Data())); | |
718 | return 0x0; | |
719 | } | |
40e382ae | 720 | return loader; |
92aeef15 | 721 | } |
722 | ||
723 | //_____________________________________________________________________________ | |
724 | Bool_t | |
725 | AliMUONDigitizerV3::Init() | |
726 | { | |
9265505b | 727 | /// Initialization of the TTask : |
40e382ae | 728 | /// a) create the calibrationData, according to run number |
729 | /// b) create the trigger processing task | |
9265505b | 730 | |
ad26d4f6 | 731 | AliDebug(2,""); |
92aeef15 | 732 | |
733 | if ( fIsInitialized ) | |
734 | { | |
735 | AliError("Object already initialized."); | |
736 | return kFALSE; | |
737 | } | |
738 | ||
739 | if (!fManager) | |
740 | { | |
741 | AliError("fManager is null !"); | |
742 | return kFALSE; | |
743 | } | |
744 | ||
331a617a | 745 | // Load mapping |
746 | if ( ! AliMpCDB::LoadDDLStore() ) { | |
88544f7e | 747 | AliFatal("Could not access mapping from OCDB !"); |
748 | } | |
749 | ||
92c23b09 | 750 | if (!fCalibrationData) |
751 | AliFatal("Calibration data object not defined"); | |
752 | ||
ad26d4f6 | 753 | if ( !fCalibrationData->Pedestals() ) |
754 | { | |
755 | AliFatal("Could not access pedestals from OCDB !"); | |
756 | } | |
757 | if ( !fCalibrationData->Gains() ) | |
758 | { | |
759 | AliFatal("Could not access gains from OCDB !"); | |
760 | } | |
92c23b09 | 761 | |
762 | ||
763 | AliInfo("Using trigger configuration from CDB"); | |
764 | ||
40e382ae | 765 | fTriggerProcessor = new AliMUONTriggerElectronics(fCalibrationData); |
4ce497c4 | 766 | |
ad26d4f6 | 767 | AliDebug(1, Form("Will %s generate noise-only digits for tracker", |
768 | (fGenerateNoisyDigits ? "":"NOT"))); | |
769 | ||
92aeef15 | 770 | fIsInitialized = kTRUE; |
771 | return kTRUE; | |
772 | } | |
773 | ||
92aeef15 | 774 | //_____________________________________________________________________________ |
775 | void | |
40e382ae | 776 | AliMUONDigitizerV3::MergeWithSDigits(AliMUONVDigitStore*& outputStore, |
777 | const AliMUONVDigitStore& input, | |
778 | Int_t mask) | |
92aeef15 | 779 | { |
9265505b | 780 | /// Merge the sdigits in inputData with the digits already present in outputData |
92aeef15 | 781 | |
40e382ae | 782 | if ( !outputStore ) outputStore = input.Create(); |
783 | ||
784 | TIter next(input.CreateIterator()); | |
785 | AliMUONVDigit* sdigit; | |
786 | ||
787 | while ( ( sdigit = static_cast<AliMUONVDigit*>(next()) ) ) | |
788 | { | |
789 | // Update the track references using the mask. | |
790 | // FIXME: this is dirty, for backward compatibility only. | |
791 | // Should re-design all this way of keeping track of MC information... | |
792 | if ( mask ) sdigit->PatchTracks(mask); | |
793 | // Then add or update the digit to the output. | |
794 | AliMUONVDigit* added = outputStore->Add(*sdigit,AliMUONVDigitStore::kMerge); | |
795 | if (!added) | |
92aeef15 | 796 | { |
40e382ae | 797 | AliError("Could not add digit in merge mode"); |
92aeef15 | 798 | } |
92aeef15 | 799 | } |
800 | } | |
ec9acc85 | 801 | |
802 | //_____________________________________________________________________________ | |
803 | TF1* | |
804 | AliMUONDigitizerV3::NoiseFunction() | |
805 | { | |
806 | /// Return noise function | |
807 | static TF1* f = 0x0; | |
808 | if (!f) | |
809 | { | |
810 | f = new TF1("AliMUONDigitizerV3::NoiseFunction","gaus",fgkNSigmas,fgkNSigmas*10); | |
811 | f->SetParameters(1,0,1); | |
812 | } | |
813 | return f; | |
814 | } | |
815 |