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f7336fa3 | 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 | ||
88cb7938 | 16 | /* $Id$ */ |
f7336fa3 | 17 | |
18 | /////////////////////////////////////////////////////////////////////////////// | |
19 | // // | |
20 | // Creates and handles digits from TRD hits // | |
abaf1f1d | 21 | // Author: C. Blume (C.Blume@gsi.de) // |
f7336fa3 | 22 | // // |
23 | // The following effects are included: // | |
24 | // - Diffusion // | |
25 | // - ExB effects // | |
26 | // - Gas gain including fluctuations // | |
27 | // - Pad-response (simple Gaussian approximation) // | |
abaf1f1d | 28 | // - Time-response // |
f7336fa3 | 29 | // - Electronics noise // |
30 | // - Electronics gain // | |
31 | // - Digitization // | |
32 | // - ADC threshold // | |
33 | // The corresponding parameter can be adjusted via the various // | |
34 | // Set-functions. If these parameters are not explicitly set, default // | |
35 | // values are used (see Init-function). // | |
abaf1f1d | 36 | // As an example on how to use this class to produce digits from hits // |
37 | // have a look at the macro hits2digits.C // | |
38 | // The production of summable digits is demonstrated in hits2sdigits.C // | |
39 | // and the subsequent conversion of the s-digits into normal digits is // | |
40 | // explained in sdigits2digits.C. // | |
f7336fa3 | 41 | // // |
42 | /////////////////////////////////////////////////////////////////////////////// | |
43 | ||
6798b56e | 44 | #include <stdlib.h> |
45 | ||
f7336fa3 | 46 | #include <TMath.h> |
47 | #include <TVector.h> | |
48 | #include <TRandom.h> | |
94de3818 | 49 | #include <TROOT.h> |
50 | #include <TTree.h> | |
793ff80c | 51 | #include <TFile.h> |
52 | #include <TF1.h> | |
abaf1f1d | 53 | #include <TList.h> |
85cbec76 | 54 | #include <TTask.h> |
793ff80c | 55 | |
56 | #include "AliRun.h" | |
88cb7938 | 57 | #include "AliRunLoader.h" |
58 | #include "AliLoader.h" | |
59 | #include "AliConfig.h" | |
db30bf0f | 60 | #include "AliMagF.h" |
85cbec76 | 61 | #include "AliRunDigitizer.h" |
88cb7938 | 62 | #include "AliRunLoader.h" |
63 | #include "AliLoader.h" | |
f7336fa3 | 64 | |
65 | #include "AliTRD.h" | |
793ff80c | 66 | #include "AliTRDhit.h" |
f7336fa3 | 67 | #include "AliTRDdigitizer.h" |
da581aea | 68 | #include "AliTRDdataArrayI.h" |
69 | #include "AliTRDdataArrayF.h" | |
793ff80c | 70 | #include "AliTRDsegmentArray.h" |
da581aea | 71 | #include "AliTRDdigitsManager.h" |
793ff80c | 72 | #include "AliTRDgeometry.h" |
4487dad0 | 73 | #include "AliTRDparameter.h" |
f7336fa3 | 74 | |
75 | ClassImp(AliTRDdigitizer) | |
76 | ||
77 | //_____________________________________________________________________________ | |
85cbec76 | 78 | AliTRDdigitizer::AliTRDdigitizer() |
f7336fa3 | 79 | { |
80 | // | |
81 | // AliTRDdigitizer default constructor | |
82 | // | |
83 | ||
85a5290f | 84 | fRunLoader = 0; |
4487dad0 | 85 | fDigitsManager = 0; |
4487dad0 | 86 | fSDigitsManager = 0; |
85a5290f | 87 | fSDigitsManagerList = 0; |
4487dad0 | 88 | fTRD = 0; |
89 | fGeo = 0; | |
90 | fPar = 0; | |
abaf1f1d | 91 | fEvent = 0; |
85a5290f | 92 | fMasks = 0; |
abaf1f1d | 93 | fCompress = kTRUE; |
e23fbb27 | 94 | fDebug = 0; |
abaf1f1d | 95 | fSDigits = kFALSE; |
96 | fSDigitsScale = 0.0; | |
4487dad0 | 97 | fMergeSignalOnly = kFALSE; |
0c24ba98 | 98 | fSimpleSim = kFALSE; |
99 | fSimpleDet = 0; | |
100 | ||
f7336fa3 | 101 | } |
102 | ||
103 | //_____________________________________________________________________________ | |
104 | AliTRDdigitizer::AliTRDdigitizer(const Text_t *name, const Text_t *title) | |
85cbec76 | 105 | :AliDigitizer(name,title) |
f7336fa3 | 106 | { |
107 | // | |
85cbec76 | 108 | // AliTRDdigitizer constructor |
109 | // | |
110 | ||
85a5290f | 111 | fRunLoader = 0; |
88cb7938 | 112 | |
113 | //NewIO: These data members probably are not needed anymore | |
4487dad0 | 114 | fDigitsManager = 0; |
4487dad0 | 115 | fSDigitsManager = 0; |
85a5290f | 116 | fSDigitsManagerList = 0; |
4487dad0 | 117 | fTRD = 0; |
118 | fGeo = 0; | |
119 | fPar = 0; | |
88cb7938 | 120 | //End NewIO comment |
85cbec76 | 121 | fEvent = 0; |
85a5290f | 122 | fMasks = 0; |
85cbec76 | 123 | fCompress = kTRUE; |
e23fbb27 | 124 | fDebug = 0; |
85cbec76 | 125 | fSDigits = kFALSE; |
85a5290f | 126 | fSDigitsScale = 100.; // For the summable digits |
4487dad0 | 127 | fMergeSignalOnly = kFALSE; |
0c24ba98 | 128 | fSimpleSim = kFALSE; |
129 | fSimpleDet = 0; | |
130 | ||
85cbec76 | 131 | |
132 | } | |
133 | ||
134 | //_____________________________________________________________________________ | |
135 | AliTRDdigitizer::AliTRDdigitizer(AliRunDigitizer *manager | |
136 | , const Text_t *name, const Text_t *title) | |
137 | :AliDigitizer(manager,name,title) | |
138 | { | |
139 | // | |
140 | // AliTRDdigitizer constructor | |
f7336fa3 | 141 | // |
142 | ||
85a5290f | 143 | fRunLoader = 0; |
4487dad0 | 144 | fDigitsManager = 0; |
4487dad0 | 145 | fSDigitsManager = 0; |
85a5290f | 146 | fSDigitsManagerList = 0; |
4487dad0 | 147 | fTRD = 0; |
148 | fGeo = 0; | |
149 | fPar = 0; | |
bfc40adc | 150 | fEvent = 0; |
85a5290f | 151 | fMasks = 0; |
bfc40adc | 152 | fCompress = kTRUE; |
153 | fDebug = 0; | |
154 | fSDigits = kFALSE; | |
85a5290f | 155 | fSDigitsScale = 100.; // For the summable digits |
4487dad0 | 156 | fMergeSignalOnly = kFALSE; |
0c24ba98 | 157 | fSimpleSim = kFALSE; |
158 | fSimpleDet = 0; | |
159 | ||
bfc40adc | 160 | |
161 | } | |
162 | ||
163 | //_____________________________________________________________________________ | |
164 | AliTRDdigitizer::AliTRDdigitizer(AliRunDigitizer *manager) | |
165 | :AliDigitizer(manager,"AliTRDdigitizer","TRD digitizer") | |
166 | { | |
167 | // | |
168 | // AliTRDdigitizer constructor | |
169 | // | |
170 | ||
88cb7938 | 171 | |
85a5290f | 172 | fRunLoader = 0; |
4487dad0 | 173 | fDigitsManager = 0; |
4487dad0 | 174 | fSDigitsManager = 0; |
85a5290f | 175 | fSDigitsManagerList = 0; |
4487dad0 | 176 | fTRD = 0; |
177 | fGeo = 0; | |
178 | fPar = 0; | |
abaf1f1d | 179 | fEvent = 0; |
85a5290f | 180 | fMasks = 0; |
abaf1f1d | 181 | fCompress = kTRUE; |
e23fbb27 | 182 | fDebug = 0; |
abaf1f1d | 183 | fSDigits = kFALSE; |
85a5290f | 184 | fSDigitsScale = 100.; // For the summable digits |
4487dad0 | 185 | fMergeSignalOnly = kFALSE; |
0c24ba98 | 186 | fSimpleSim = kFALSE; |
187 | fSimpleDet = 0; | |
793ff80c | 188 | |
f7336fa3 | 189 | |
190 | } | |
191 | ||
8230f242 | 192 | //_____________________________________________________________________________ |
73ae7b59 | 193 | AliTRDdigitizer::AliTRDdigitizer(const AliTRDdigitizer &d):AliDigitizer(d) |
8230f242 | 194 | { |
195 | // | |
196 | // AliTRDdigitizer copy constructor | |
197 | // | |
198 | ||
dd9a6ee3 | 199 | ((AliTRDdigitizer &) d).Copy(*this); |
8230f242 | 200 | |
201 | } | |
202 | ||
f7336fa3 | 203 | //_____________________________________________________________________________ |
204 | AliTRDdigitizer::~AliTRDdigitizer() | |
205 | { | |
8230f242 | 206 | // |
207 | // AliTRDdigitizer destructor | |
208 | // | |
f7336fa3 | 209 | |
abaf1f1d | 210 | |
211 | if (fDigitsManager) { | |
212 | delete fDigitsManager; | |
4487dad0 | 213 | fDigitsManager = 0; |
f7336fa3 | 214 | } |
215 | ||
47b5729a | 216 | fSDigitsManager = 0; |
f7336fa3 | 217 | |
abaf1f1d | 218 | if (fSDigitsManagerList) { |
47b5729a | 219 | fSDigitsManagerList->Delete(); |
abaf1f1d | 220 | delete fSDigitsManagerList; |
4487dad0 | 221 | fSDigitsManagerList = 0; |
e23fbb27 | 222 | } |
223 | ||
224 | if (fMasks) { | |
225 | delete [] fMasks; | |
226 | fMasks = 0; | |
227 | } | |
228 | ||
f7336fa3 | 229 | } |
230 | ||
8230f242 | 231 | //_____________________________________________________________________________ |
dd9a6ee3 | 232 | AliTRDdigitizer &AliTRDdigitizer::operator=(const AliTRDdigitizer &d) |
233 | { | |
234 | // | |
235 | // Assignment operator | |
236 | // | |
237 | ||
238 | if (this != &d) ((AliTRDdigitizer &) d).Copy(*this); | |
239 | return *this; | |
240 | ||
241 | } | |
242 | ||
243 | //_____________________________________________________________________________ | |
e0d47c25 | 244 | void AliTRDdigitizer::Copy(TObject &d) const |
8230f242 | 245 | { |
246 | // | |
247 | // Copy function | |
248 | // | |
249 | ||
85a5290f | 250 | ((AliTRDdigitizer &) d).fRunLoader = 0; |
4487dad0 | 251 | ((AliTRDdigitizer &) d).fDigitsManager = 0; |
85a5290f | 252 | ((AliTRDdigitizer &) d).fSDigitsManager = 0; |
253 | ((AliTRDdigitizer &) d).fSDigitsManagerList = 0; | |
4487dad0 | 254 | ((AliTRDdigitizer &) d).fTRD = 0; |
255 | ((AliTRDdigitizer &) d).fGeo = 0; | |
4487dad0 | 256 | ((AliTRDdigitizer &) d).fPar = 0; |
85a5290f | 257 | ((AliTRDdigitizer &) d).fEvent = 0; |
258 | ((AliTRDdigitizer &) d).fMasks = 0; | |
abaf1f1d | 259 | ((AliTRDdigitizer &) d).fCompress = fCompress; |
e23fbb27 | 260 | ((AliTRDdigitizer &) d).fDebug = fDebug ; |
abaf1f1d | 261 | ((AliTRDdigitizer &) d).fSDigits = fSDigits; |
262 | ((AliTRDdigitizer &) d).fSDigitsScale = fSDigitsScale; | |
4487dad0 | 263 | ((AliTRDdigitizer &) d).fMergeSignalOnly = fMergeSignalOnly; |
0c24ba98 | 264 | ((AliTRDdigitizer &) d).fSimpleSim = fSimpleSim; |
265 | ((AliTRDdigitizer &) d).fSimpleDet = fSimpleDet; | |
266 | ||
e23fbb27 | 267 | } |
268 | ||
e23fbb27 | 269 | //_____________________________________________________________________________ |
270 | void AliTRDdigitizer::Exec(Option_t* option) | |
271 | { | |
272 | // | |
273 | // Executes the merging | |
274 | // | |
275 | ||
276 | Int_t iInput; | |
277 | ||
278 | AliTRDdigitsManager *sdigitsManager; | |
279 | ||
280 | TString optionString = option; | |
281 | if (optionString.Contains("deb")) { | |
282 | fDebug = 1; | |
283 | if (optionString.Contains("2")) { | |
284 | fDebug = 2; | |
285 | } | |
286 | printf("<AliTRDdigitizer::Exec> "); | |
287 | printf("Called with debug option %d\n",fDebug); | |
288 | } | |
289 | ||
cec4059b | 290 | // The AliRoot file is already connected by the manager |
88cb7938 | 291 | AliRunLoader* inrl; |
292 | ||
293 | if (gAlice) | |
294 | { | |
4487dad0 | 295 | if (fDebug > 0) { |
296 | printf("<AliTRDdigitizer::Exec> "); | |
297 | printf("AliRun object found on file.\n"); | |
298 | } | |
88cb7938 | 299 | } |
4487dad0 | 300 | else { |
88cb7938 | 301 | inrl = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(0)); |
302 | inrl->LoadgAlice(); | |
303 | gAlice = inrl->GetAliRun(); | |
304 | if (!gAlice) | |
305 | { | |
306 | printf("<AliTRDdigitizer::Exec> "); | |
307 | printf("Could not find AliRun object.\n"); | |
308 | return; | |
309 | } | |
4487dad0 | 310 | } |
cec4059b | 311 | |
e23fbb27 | 312 | Int_t nInput = fManager->GetNinputs(); |
313 | fMasks = new Int_t[nInput]; | |
314 | for (iInput = 0; iInput < nInput; iInput++) { | |
315 | fMasks[iInput] = fManager->GetMask(iInput); | |
316 | } | |
e23fbb27 | 317 | |
318 | // Initialization | |
e23fbb27 | 319 | |
67c67368 | 320 | AliRunLoader* orl = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName()); |
321 | if (InitDetector()) { | |
322 | AliLoader* ogime = orl->GetLoader("TRDLoader"); | |
323 | ||
324 | TTree* tree = 0; | |
325 | if (fSDigits) | |
326 | { | |
327 | //if we produce SDigits | |
328 | tree = ogime->TreeS(); | |
329 | if (!tree) | |
330 | { | |
331 | ogime->MakeTree("S"); | |
332 | tree = ogime->TreeS(); | |
333 | } | |
334 | } | |
335 | else | |
336 | {//if we produce Digits | |
337 | tree = ogime->TreeD(); | |
338 | if (!tree) | |
339 | { | |
340 | ogime->MakeTree("D"); | |
341 | tree = ogime->TreeD(); | |
342 | } | |
343 | } | |
344 | MakeBranch(tree); | |
345 | } | |
346 | ||
e23fbb27 | 347 | for (iInput = 0; iInput < nInput; iInput++) { |
348 | ||
349 | if (fDebug > 0) { | |
350 | printf("<AliTRDdigitizer::Exec> "); | |
351 | printf("Add input stream %d\n",iInput); | |
352 | } | |
353 | ||
c57e2264 | 354 | // check if the input tree exists |
88cb7938 | 355 | inrl = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(iInput)); |
356 | AliLoader* gime = inrl->GetLoader("TRDLoader"); | |
357 | ||
358 | TTree * treees = gime->TreeS(); | |
359 | if (treees == 0x0) | |
360 | { | |
361 | if (gime->LoadSDigits()) | |
362 | { | |
363 | Error("Exec","Error Occured while loading S. Digits for input %d.",iInput); | |
364 | return; | |
365 | } | |
366 | treees = gime->TreeS(); | |
367 | } | |
368 | ||
369 | if (treees == 0x0) { | |
c57e2264 | 370 | printf("<AliTRDdigitizer::Exec> "); |
371 | printf("Input stream %d does not exist\n",iInput); | |
372 | return; | |
373 | } | |
374 | ||
e23fbb27 | 375 | // Read the s-digits via digits manager |
376 | sdigitsManager = new AliTRDdigitsManager(); | |
377 | sdigitsManager->SetDebug(fDebug); | |
378 | sdigitsManager->SetSDigits(kTRUE); | |
88cb7938 | 379 | |
380 | AliRunLoader* rl = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(iInput)); | |
381 | AliLoader* gimme = rl->GetLoader("TRDLoader"); | |
382 | if (!gimme->TreeS()) gimme->LoadSDigits(); | |
383 | sdigitsManager->ReadDigits(gimme->TreeS()); | |
e23fbb27 | 384 | |
385 | // Add the s-digits to the input list | |
386 | AddSDigitsManager(sdigitsManager); | |
387 | ||
388 | } | |
389 | ||
390 | // Convert the s-digits to normal digits | |
391 | if (fDebug > 0) { | |
392 | printf("<AliTRDdigitizer::Exec> "); | |
393 | printf("Do the conversion\n"); | |
394 | } | |
395 | SDigits2Digits(); | |
396 | ||
397 | // Store the digits | |
398 | if (fDebug > 0) { | |
399 | printf("<AliTRDdigitizer::Exec> "); | |
400 | printf("Write the digits\n"); | |
401 | } | |
88cb7938 | 402 | |
e23fbb27 | 403 | fDigitsManager->WriteDigits(); |
88cb7938 | 404 | |
67c67368 | 405 | //Write parameters |
406 | orl->CdGAFile(); | |
bdbb05bb | 407 | if (!gFile->Get("TRDparameter")) GetParameter()->Write(); |
67c67368 | 408 | |
e23fbb27 | 409 | if (fDebug > 0) { |
410 | printf("<AliTRDdigitizer::Exec> "); | |
411 | printf("Done\n"); | |
412 | } | |
413 | ||
b1113c6b | 414 | DeleteSDigitsManager(); |
415 | ||
e23fbb27 | 416 | } |
417 | ||
f7336fa3 | 418 | //_____________________________________________________________________________ |
e23fbb27 | 419 | Bool_t AliTRDdigitizer::Open(const Char_t *file, Int_t nEvent) |
f7336fa3 | 420 | { |
421 | // | |
422 | // Opens a ROOT-file with TRD-hits and reads in the hit-tree | |
423 | // | |
424 | ||
425 | // Connect the AliRoot file containing Geometry, Kine, and Hits | |
88cb7938 | 426 | |
f540341d | 427 | |
e191bb57 | 428 | TString evfoldname = AliConfig::GetDefaultEventFolderName(); |
f540341d | 429 | fRunLoader = AliRunLoader::GetRunLoader(evfoldname); |
430 | if (!fRunLoader) | |
e191bb57 | 431 | fRunLoader = AliRunLoader::Open(file,AliConfig::GetDefaultEventFolderName(), |
f540341d | 432 | "UPDATE"); |
88cb7938 | 433 | |
434 | if (!fRunLoader) | |
435 | { | |
436 | Error("Open","Can not open session for file %s.",file); | |
437 | return kFALSE; | |
438 | } | |
439 | ||
f540341d | 440 | if (!fRunLoader->GetAliRun()) fRunLoader->LoadgAlice(); |
88cb7938 | 441 | gAlice = fRunLoader->GetAliRun(); |
442 | ||
da581aea | 443 | if (gAlice) { |
e23fbb27 | 444 | if (fDebug > 0) { |
445 | printf("<AliTRDdigitizer::Open> "); | |
abaf1f1d | 446 | printf("AliRun object found on file.\n"); |
447 | } | |
da581aea | 448 | } |
449 | else { | |
e23fbb27 | 450 | printf("<AliTRDdigitizer::Open> "); |
da581aea | 451 | printf("Could not find AliRun object.\n"); |
452 | return kFALSE; | |
453 | } | |
f7336fa3 | 454 | |
455 | fEvent = nEvent; | |
456 | ||
457 | // Import the Trees for the event nEvent in the file | |
88cb7938 | 458 | fRunLoader->GetEvent(fEvent); |
459 | ||
460 | AliLoader* loader = fRunLoader->GetLoader("TRDLoader"); | |
461 | if (!loader) | |
462 | { | |
463 | Error("Open","Can not get TRD loader from Run Loader"); | |
464 | return kFALSE; | |
465 | } | |
466 | ||
abaf1f1d | 467 | if (InitDetector()) { |
88cb7938 | 468 | TTree* tree = 0; |
469 | if (fSDigits) | |
470 | { | |
471 | //if we produce SDigits | |
472 | tree = loader->TreeS(); | |
473 | if (!tree) | |
474 | { | |
475 | loader->MakeTree("S"); | |
476 | tree = loader->TreeS(); | |
477 | } | |
478 | } | |
479 | else | |
480 | {//if we produce Digits | |
88cb7938 | 481 | if (!tree) |
482 | { | |
483 | loader->MakeTree("D"); | |
484 | tree = loader->TreeD(); | |
485 | } | |
486 | } | |
487 | return MakeBranch(tree); | |
abaf1f1d | 488 | } |
489 | else { | |
490 | return kFALSE; | |
491 | } | |
793ff80c | 492 | |
493 | } | |
494 | ||
495 | //_____________________________________________________________________________ | |
496 | Bool_t AliTRDdigitizer::InitDetector() | |
497 | { | |
498 | // | |
499 | // Sets the pointer to the TRD detector and the geometry | |
500 | // | |
501 | ||
dd9a6ee3 | 502 | // Get the pointer to the detector class and check for version 1 |
4487dad0 | 503 | fTRD = (AliTRD *) gAlice->GetDetector("TRD"); |
cec4059b | 504 | if (!fTRD) { |
505 | printf("<AliTRDdigitizer::InitDetector> "); | |
506 | printf("No TRD module found\n"); | |
507 | exit(1); | |
508 | } | |
dd9a6ee3 | 509 | if (fTRD->IsVersion() != 1) { |
e23fbb27 | 510 | printf("<AliTRDdigitizer::InitDetector> "); |
dd9a6ee3 | 511 | printf("TRD must be version 1 (slow simulator).\n"); |
512 | exit(1); | |
513 | } | |
514 | ||
515 | // Get the geometry | |
516 | fGeo = fTRD->GetGeometry(); | |
e23fbb27 | 517 | if (fDebug > 0) { |
518 | printf("<AliTRDdigitizer::InitDetector> "); | |
abaf1f1d | 519 | printf("Geometry version %d\n",fGeo->IsVersion()); |
520 | } | |
dd9a6ee3 | 521 | |
abaf1f1d | 522 | // Create a digits manager |
47b5729a | 523 | delete fDigitsManager; |
abaf1f1d | 524 | fDigitsManager = new AliTRDdigitsManager(); |
525 | fDigitsManager->SetSDigits(fSDigits); | |
526 | fDigitsManager->CreateArrays(); | |
527 | fDigitsManager->SetEvent(fEvent); | |
e23fbb27 | 528 | fDigitsManager->SetDebug(fDebug); |
abaf1f1d | 529 | |
530 | // The list for the input s-digits manager to be merged | |
47b5729a | 531 | if (fSDigitsManagerList) { |
532 | fSDigitsManagerList->Delete(); | |
533 | } else { | |
534 | fSDigitsManagerList = new TList(); | |
535 | } | |
abaf1f1d | 536 | |
4487dad0 | 537 | return kTRUE; |
f7336fa3 | 538 | |
539 | } | |
540 | ||
6244debe | 541 | //_____________________________________________________________________________ |
88cb7938 | 542 | Bool_t AliTRDdigitizer::MakeBranch(TTree* tree) const |
6244debe | 543 | { |
abaf1f1d | 544 | // |
545 | // Create the branches for the digits array | |
6244debe | 546 | // |
547 | ||
88cb7938 | 548 | return fDigitsManager->MakeBranch(tree); |
6244debe | 549 | |
550 | } | |
551 | ||
f7336fa3 | 552 | //_____________________________________________________________________________ |
553 | Bool_t AliTRDdigitizer::MakeDigits() | |
554 | { | |
555 | // | |
872a7aba | 556 | // Creates digits. |
f7336fa3 | 557 | // |
558 | ||
f7336fa3 | 559 | /////////////////////////////////////////////////////////////// |
560 | // Parameter | |
561 | /////////////////////////////////////////////////////////////// | |
562 | ||
563 | // Converts number of electrons to fC | |
872a7aba | 564 | const Double_t kEl2fC = 1.602E-19 * 1.0E15; |
f7336fa3 | 565 | |
566 | /////////////////////////////////////////////////////////////// | |
567 | ||
793ff80c | 568 | // Number of pads included in the pad response |
569 | const Int_t kNpad = 3; | |
570 | ||
571 | // Number of track dictionary arrays | |
dd56b762 | 572 | const Int_t kNDict = AliTRDdigitsManager::kNDict; |
793ff80c | 573 | |
872a7aba | 574 | // Half the width of the amplification region |
575 | const Float_t kAmWidth = AliTRDgeometry::AmThick() / 2.; | |
ccb4315c | 576 | // Width of the drit region |
577 | const Float_t kDrWidth = AliTRDgeometry::DrThick(); | |
872a7aba | 578 | |
c3a4830f | 579 | Int_t iRow, iCol, iTime, iPad; |
71d9fa7b | 580 | Int_t iDict = 0; |
793ff80c | 581 | Int_t nBytes = 0; |
f7336fa3 | 582 | |
583 | Int_t totalSizeDigits = 0; | |
584 | Int_t totalSizeDict0 = 0; | |
585 | Int_t totalSizeDict1 = 0; | |
586 | Int_t totalSizeDict2 = 0; | |
587 | ||
ccb4315c | 588 | Int_t timeBinTRFend = 1; |
872a7aba | 589 | |
590 | Float_t pos[3]; | |
591 | Float_t rot[3]; | |
592 | Float_t xyz[3]; | |
593 | Float_t padSignal[kNpad]; | |
594 | Float_t signalOld[kNpad]; | |
595 | ||
793ff80c | 596 | AliTRDdataArrayF *signals = 0; |
597 | AliTRDdataArrayI *digits = 0; | |
8230f242 | 598 | AliTRDdataArrayI *dictionary[kNDict]; |
da581aea | 599 | |
4487dad0 | 600 | // Create a default parameter class if none is defined |
601 | if (!fPar) { | |
602 | fPar = new AliTRDparameter("TRDparameter","Standard TRD parameter"); | |
603 | if (fDebug > 0) { | |
604 | printf("<AliTRDdigitizer::MakeDigits> "); | |
605 | printf("Create the default parameter object\n"); | |
606 | } | |
607 | } | |
608 | ||
793ff80c | 609 | // Create a container for the amplitudes |
610 | AliTRDsegmentArray *signalsArray | |
e23fbb27 | 611 | = new AliTRDsegmentArray("AliTRDdataArrayF" |
612 | ,AliTRDgeometry::Ndet()); | |
793ff80c | 613 | |
4487dad0 | 614 | if (fPar->TRFOn()) { |
ccb4315c | 615 | timeBinTRFend = ((Int_t) ( fPar->GetTRFhi() * fPar->GetSamplingFrequency())) - 1; |
e23fbb27 | 616 | if (fDebug > 0) { |
617 | printf("<AliTRDdigitizer::MakeDigits> "); | |
ccb4315c | 618 | printf("Sample the TRF up to bin %d\n",timeBinTRFend); |
abaf1f1d | 619 | } |
da581aea | 620 | } |
621 | ||
4487dad0 | 622 | Float_t elAttachProp = fPar->GetElAttachProp() / 100.; |
793ff80c | 623 | |
872a7aba | 624 | if (!fGeo) { |
e23fbb27 | 625 | printf("<AliTRDdigitizer::MakeDigits> "); |
872a7aba | 626 | printf("No geometry defined\n"); |
627 | return kFALSE; | |
628 | } | |
629 | ||
e23fbb27 | 630 | if (fDebug > 0) { |
631 | printf("<AliTRDdigitizer::MakeDigits> "); | |
abaf1f1d | 632 | printf("Start creating digits.\n"); |
633 | } | |
872a7aba | 634 | |
88cb7938 | 635 | AliLoader* gimme = fRunLoader->GetLoader("TRDLoader"); |
636 | if (!gimme->TreeH()) gimme->LoadHits(); | |
637 | TTree* hitTree = gimme->TreeH(); | |
638 | if (hitTree == 0x0) | |
639 | { | |
640 | Error("MakeDigits","Can not get TreeH"); | |
641 | return kFALSE; | |
642 | } | |
643 | fTRD->SetTreeAddress(); | |
644 | ||
793ff80c | 645 | // Get the number of entries in the hit tree |
646 | // (Number of primary particles creating a hit somewhere) | |
0c24ba98 | 647 | Int_t nTrack = 1; |
648 | if (!fSimpleSim) { | |
649 | nTrack = (Int_t) hitTree->GetEntries(); | |
650 | if (fDebug > 0) { | |
651 | printf("<AliTRDdigitizer::MakeDigits> "); | |
652 | printf("Found %d primary particles\n",nTrack); | |
653 | } | |
654 | } | |
793ff80c | 655 | |
656 | Int_t detectorOld = -1; | |
657 | Int_t countHits = 0; | |
658 | ||
a328fff9 | 659 | if (fDebug > 0) { |
ccb4315c | 660 | fPar->PrintDriftVelocity(); |
661 | printf("<AliTRDdigitizer::MakeDigits> Sampling = %.0fMHz\n", fPar->GetSamplingFrequency()); | |
662 | printf("<AliTRDdigitizer::MakeDigits> Gain = %d\n",(Int_t)fPar->GetGasGain()); | |
663 | printf("<AliTRDdigitizer::MakeDigits> Noise = %d\n",(Int_t)fPar->GetNoise()); | |
a328fff9 | 664 | if (fPar->TimeStructOn()) { |
665 | printf("<AliTRDdigitizer::MakeDigits> "); | |
666 | printf("Time Structure of drift cells implemented.\n"); | |
a328fff9 | 667 | } else { |
668 | printf("<AliTRDdigitizer::MakeDigits> "); | |
669 | printf("Constant drift velocity in drift cells.\n"); | |
670 | } | |
671 | } | |
672 | ||
793ff80c | 673 | // Loop through all entries in the tree |
674 | for (Int_t iTrack = 0; iTrack < nTrack; iTrack++) { | |
675 | ||
0c24ba98 | 676 | if (!fSimpleSim) { |
677 | gAlice->ResetHits(); | |
678 | nBytes += hitTree->GetEvent(iTrack); | |
679 | } | |
793ff80c | 680 | |
e23fbb27 | 681 | // Loop through the TRD hits |
682 | Int_t iHit = 0; | |
683 | AliTRDhit *hit = (AliTRDhit *) fTRD->FirstHit(-1); | |
684 | while (hit) { | |
685 | ||
793ff80c | 686 | countHits++; |
e23fbb27 | 687 | iHit++; |
688 | ||
ccb4315c | 689 | pos[0] = hit->X(); |
690 | pos[1] = hit->Y(); | |
691 | pos[2] = hit->Z(); | |
692 | Float_t q = hit->GetCharge(); | |
693 | Int_t track = hit->Track(); | |
694 | Int_t detector = hit->GetDetector(); | |
695 | Int_t plane = fGeo->GetPlane(detector); | |
696 | Int_t sector = fGeo->GetSector(detector); | |
697 | Int_t chamber = fGeo->GetChamber(detector); | |
698 | Int_t nRowMax = fPar->GetRowMax(plane,chamber,sector); | |
699 | Int_t nColMax = fPar->GetColMax(plane); | |
700 | Int_t nTimeMax = fPar->GetTimeMax(); | |
701 | Int_t nTimeBefore = fPar->GetTimeBefore(); | |
702 | Int_t nTimeAfter = fPar->GetTimeAfter(); | |
703 | Int_t nTimeTotal = fPar->GetTimeTotal(); | |
704 | Float_t row0 = fPar->GetRow0(plane,chamber,sector); | |
705 | Float_t col0 = fPar->GetCol0(plane); | |
706 | Float_t time0 = fPar->GetTime0(plane); | |
707 | Float_t rowPadSize = fPar->GetRowPadSize(plane,chamber,sector); | |
708 | Float_t colPadSize = fPar->GetColPadSize(plane); | |
709 | Float_t driftvelocity = fPar->GetDriftVelocity(); | |
710 | Float_t samplingRate = fPar->GetSamplingFrequency(); | |
711 | Float_t divideRow = 1.0 / rowPadSize; | |
712 | Float_t divideCol = 1.0 / colPadSize; | |
793ff80c | 713 | |
e23fbb27 | 714 | if (fDebug > 1) { |
793ff80c | 715 | printf("Analyze hit no. %d ",iHit); |
716 | printf("-----------------------------------------------------------\n"); | |
717 | hit->Dump(); | |
718 | printf("plane = %d, sector = %d, chamber = %d\n" | |
719 | ,plane,sector,chamber); | |
720 | printf("nRowMax = %d, nColMax = %d, nTimeMax = %d\n" | |
721 | ,nRowMax,nColMax,nTimeMax); | |
872a7aba | 722 | printf("nTimeBefore = %d, nTimeAfter = %d, nTimeTotal = %d\n" |
723 | ,nTimeBefore,nTimeAfter,nTimeTotal); | |
793ff80c | 724 | printf("row0 = %f, col0 = %f, time0 = %f\n" |
725 | ,row0,col0,time0); | |
ccb4315c | 726 | printf("rowPadSize = %f, colPadSize = %f, SamplingRate = %f\n" |
727 | ,rowPadSize,colPadSize,samplingRate); | |
793ff80c | 728 | } |
729 | ||
e23fbb27 | 730 | // Don't analyze test hits and switched off detectors |
731 | if ((CheckDetector(plane,chamber,sector)) && | |
732 | (((Int_t) q) != 0)) { | |
dd56b762 | 733 | |
e23fbb27 | 734 | if (detector != detectorOld) { |
e153aaf6 | 735 | |
e23fbb27 | 736 | if (fDebug > 1) { |
737 | printf("<AliTRDdigitizer::MakeDigits> "); | |
738 | printf("Get new container. New det = %d, Old det = %d\n" | |
739 | ,detector,detectorOld); | |
dd9a6ee3 | 740 | } |
e23fbb27 | 741 | // Compress the old one if enabled |
742 | if ((fCompress) && (detectorOld > -1)) { | |
743 | if (fDebug > 1) { | |
744 | printf("<AliTRDdigitizer::MakeDigits> "); | |
745 | printf("Compress the old container ..."); | |
746 | } | |
747 | signals->Compress(1,0); | |
748 | for (iDict = 0; iDict < kNDict; iDict++) { | |
749 | dictionary[iDict]->Compress(1,0); | |
c1e4b257 | 750 | } |
e23fbb27 | 751 | if (fDebug > 1) printf("done\n"); |
793ff80c | 752 | } |
e23fbb27 | 753 | // Get the new container |
754 | signals = (AliTRDdataArrayF *) signalsArray->At(detector); | |
755 | if (signals->GetNtime() == 0) { | |
756 | // Allocate a new one if not yet existing | |
757 | if (fDebug > 1) { | |
758 | printf("<AliTRDdigitizer::MakeDigits> "); | |
759 | printf("Allocate a new container ... "); | |
760 | } | |
761 | signals->Allocate(nRowMax,nColMax,nTimeTotal); | |
793ff80c | 762 | } |
0c24ba98 | 763 | else if (fSimpleSim) { |
764 | // Clear an old one for the simple simulation | |
765 | if (fDebug > 1) { | |
766 | printf("<AliTRDdigitizer::MakeDigits> "); | |
767 | printf("Clear a old container ... "); | |
768 | } | |
769 | signals->Clear(); | |
770 | } | |
793ff80c | 771 | else { |
e23fbb27 | 772 | // Expand an existing one |
773 | if (fCompress) { | |
774 | if (fDebug > 1) { | |
775 | printf("<AliTRDdigitizer::MakeDigits> "); | |
776 | printf("Expand an existing container ... "); | |
777 | } | |
778 | signals->Expand(); | |
779 | } | |
793ff80c | 780 | } |
e23fbb27 | 781 | // The same for the dictionary |
0c24ba98 | 782 | if (!fSimpleSim) { |
783 | for (iDict = 0; iDict < kNDict; iDict++) { | |
784 | dictionary[iDict] = fDigitsManager->GetDictionary(detector,iDict); | |
785 | if (dictionary[iDict]->GetNtime() == 0) { | |
786 | dictionary[iDict]->Allocate(nRowMax,nColMax,nTimeTotal); | |
787 | } | |
788 | else { | |
789 | if (fCompress) dictionary[iDict]->Expand(); | |
790 | } | |
e23fbb27 | 791 | } |
792 | } | |
793 | if (fDebug > 1) printf("done\n"); | |
794 | detectorOld = detector; | |
793ff80c | 795 | } |
796 | ||
e23fbb27 | 797 | // Rotate the sectors on top of each other |
0c24ba98 | 798 | if (fSimpleSim) { |
799 | rot[0] = pos[0]; | |
800 | rot[1] = pos[1]; | |
801 | rot[2] = pos[2]; | |
802 | } | |
803 | else { | |
804 | fGeo->Rotate(detector,pos,rot); | |
805 | } | |
e23fbb27 | 806 | |
ccb4315c | 807 | // The driftlength. It is negative if the hit is between pad plane and anode wires. |
e23fbb27 | 808 | Float_t driftlength = time0 - rot[0]; |
809 | ||
ccb4315c | 810 | // Normalised drift length |
811 | Float_t absdriftlength = TMath::Abs(driftlength); | |
812 | if (fPar->ExBOn()) absdriftlength /= TMath::Sqrt(fPar->GetLorentzFactor()); | |
e23fbb27 | 813 | |
814 | // Loop over all electrons of this hit | |
815 | // TR photons produce hits with negative charge | |
816 | Int_t nEl = ((Int_t) TMath::Abs(q)); | |
817 | for (Int_t iEl = 0; iEl < nEl; iEl++) { | |
818 | ||
819 | xyz[0] = rot[0]; | |
820 | xyz[1] = rot[1]; | |
821 | xyz[2] = rot[2]; | |
822 | ||
a328fff9 | 823 | // Stupid patch to take care of TR photons that are absorbed |
824 | // outside the chamber volume. A real fix would actually need | |
825 | // a more clever implementation of the TR hit generation | |
81a6930e | 826 | if (q < 0.0) { |
827 | Float_t zz = xyz[2] - row0; | |
828 | if ((zz < 0.0) || (zz > rowPadSize*nRowMax)) { | |
829 | if (iEl == 0) { | |
830 | printf("<AliTRDdigitizer::MakeDigits> "); | |
831 | printf("Hit outside of sensitive volume, row (Q = %d)\n",((Int_t) q)); | |
832 | //printf("zz=%f, xyz=%f, row0=%f, max=%f\n",zz,xyz[2],row0,rowPadSize*nRowMax); | |
833 | } | |
834 | continue; | |
a328fff9 | 835 | } |
ccb4315c | 836 | Float_t tt = driftlength + kAmWidth; |
837 | if (tt < 0.0 || tt > kDrWidth + 2.*kAmWidth) { | |
81a6930e | 838 | if (iEl == 0) { |
839 | printf("<AliTRDdigitizer::MakeDigits> "); | |
840 | printf("Hit outside of sensitive volume, time (Q = %d)\n",((Int_t) q)); | |
ccb4315c | 841 | /*printf("track %d: tt=%f, xyz=%f, min=%f, max=%f\n", |
842 | iTrack,tt,xyz[0],time0-kDrWidth-kAmWidth,time0+kAmWidth);*/ | |
81a6930e | 843 | } |
844 | continue; | |
a328fff9 | 845 | } |
a328fff9 | 846 | } |
847 | ||
e23fbb27 | 848 | // Electron attachment |
4487dad0 | 849 | if (fPar->ElAttachOn()) { |
ccb4315c | 850 | if (gRandom->Rndm() < (absdriftlength * elAttachProp)) continue; |
81a6930e | 851 | } |
e23fbb27 | 852 | |
853 | // Apply the diffusion smearing | |
4487dad0 | 854 | if (fPar->DiffusionOn()) { |
ccb4315c | 855 | if (!(fPar->Diffusion(absdriftlength,xyz))) continue; |
e23fbb27 | 856 | } |
f7336fa3 | 857 | |
e23fbb27 | 858 | // Apply E x B effects (depends on drift direction) |
4487dad0 | 859 | if (fPar->ExBOn()) { |
ccb4315c | 860 | if (!(fPar->ExB(driftlength,xyz))) continue; |
a328fff9 | 861 | } |
862 | ||
ccb4315c | 863 | // The electron position after diffusion and ExB in pad coordinates. |
e23fbb27 | 864 | // The pad row (z-direction) |
865 | Float_t rowDist = xyz[2] - row0; | |
866 | Int_t rowE = ((Int_t) (rowDist * divideRow)); | |
81a6930e | 867 | if ((rowE < 0) || (rowE >= nRowMax)) continue; |
e23fbb27 | 868 | Float_t rowOffset = ((((Float_t) rowE) + 0.5) * rowPadSize) - rowDist; |
869 | ||
870 | // The pad column (rphi-direction) | |
4487dad0 | 871 | Float_t col0tilt = fPar->Col0Tilted(col0,rowOffset,plane); |
e23fbb27 | 872 | Float_t colDist = xyz[1] - col0tilt; |
873 | Int_t colE = ((Int_t) (colDist * divideCol)); | |
81a6930e | 874 | if ((colE < 0) || (colE >= nColMax)) continue; |
ccb4315c | 875 | Float_t colOffset = ((((Float_t) colE) + 0.5) * colPadSize) - colDist; |
876 | ||
877 | // Convert the position to drift time, using either constant drift velocity or | |
878 | // time structure of drift cells (non-isochronity, GARFIELD calculation). | |
879 | Float_t drifttime; | |
880 | if (fPar->TimeStructOn()) { | |
881 | // Get z-position with respect to anode wire: | |
882 | Float_t Z = xyz[2] - row0 + fPar->GetAnodeWireOffset(); | |
883 | Z -= ((Int_t)(2*Z))/2.; | |
884 | if (Z>0.25) Z = 0.5-Z; | |
885 | // use drift time map (GARFIELD) | |
886 | drifttime = fPar->TimeStruct(time0 - xyz[0] + kAmWidth, Z); | |
887 | } else { | |
888 | // use constant drift velocity | |
889 | drifttime = TMath::Abs(time0 - xyz[0]) / driftvelocity; | |
e23fbb27 | 890 | } |
ccb4315c | 891 | |
892 | // The time bin (always positive) | |
893 | Int_t timeE = ((Int_t) (drifttime * samplingRate)); | |
894 | // The distance of the position to the middle of the timebin | |
895 | Float_t timeOffset = ((((Float_t) timeE) + 0.5) / samplingRate) - drifttime; | |
872a7aba | 896 | |
e23fbb27 | 897 | // Apply the gas gain including fluctuations |
898 | Float_t ggRndm = 0.0; | |
899 | do { | |
900 | ggRndm = gRandom->Rndm(); | |
901 | } while (ggRndm <= 0); | |
4487dad0 | 902 | Int_t signal = (Int_t) (-fPar->GetGasGain() * TMath::Log(ggRndm)); |
e23fbb27 | 903 | |
904 | // Apply the pad response | |
4487dad0 | 905 | if (fPar->PRFOn()) { |
e23fbb27 | 906 | // The distance of the electron to the center of the pad |
907 | // in units of pad width | |
908 | Float_t dist = - colOffset * divideCol; | |
4487dad0 | 909 | if (!(fPar->PadResponse(signal,dist,plane,padSignal))) continue; |
793ff80c | 910 | } |
e23fbb27 | 911 | else { |
912 | padSignal[0] = 0.0; | |
913 | padSignal[1] = signal; | |
914 | padSignal[2] = 0.0; | |
915 | } | |
916 | ||
917 | // Sample the time response inside the drift region | |
918 | // + additional time bins before and after. | |
919 | // The sampling is done always in the middle of the time bin | |
ccb4315c | 920 | for (Int_t iTimeBin = TMath::Max(timeE,-nTimeBefore) ; |
921 | iTimeBin < TMath::Min(timeE+timeBinTRFend,nTimeMax+nTimeAfter ) ; | |
922 | iTimeBin++ ) { | |
e23fbb27 | 923 | |
924 | // Apply the time response | |
925 | Float_t timeResponse = 1.0; | |
926 | Float_t crossTalk = 0.0; | |
ccb4315c | 927 | Float_t time = (iTimeBin - timeE) / samplingRate + timeOffset; |
4487dad0 | 928 | if (fPar->TRFOn()) { |
929 | timeResponse = fPar->TimeResponse(time); | |
81a6930e | 930 | //printf("iTimeBin = %d, time = %f, timeResponse = %f\n" |
931 | // ,iTimeBin,time,timeResponse); | |
e23fbb27 | 932 | } |
4487dad0 | 933 | if (fPar->CTOn()) { |
934 | crossTalk = fPar->CrossTalk(time); | |
e23fbb27 | 935 | } |
936 | ||
937 | signalOld[0] = 0.0; | |
938 | signalOld[1] = 0.0; | |
939 | signalOld[2] = 0.0; | |
f7336fa3 | 940 | |
e23fbb27 | 941 | for (iPad = 0; iPad < kNpad; iPad++) { |
942 | ||
943 | Int_t colPos = colE + iPad - 1; | |
944 | if (colPos < 0) continue; | |
945 | if (colPos >= nColMax) break; | |
946 | ||
947 | // Add the signals | |
948 | // Note: The time bin number is shifted by nTimeBefore to avoid negative | |
949 | // time bins. This has to be subtracted later. | |
950 | Int_t iCurrentTimeBin = iTimeBin + nTimeBefore; | |
951 | signalOld[iPad] = signals->GetDataUnchecked(rowE,colPos,iCurrentTimeBin); | |
952 | if( colPos != colE ) { | |
953 | signalOld[iPad] += padSignal[iPad] * (timeResponse + crossTalk); | |
954 | } | |
955 | else { | |
956 | signalOld[iPad] += padSignal[iPad] * timeResponse; | |
957 | } | |
958 | signals->SetDataUnchecked(rowE,colPos,iCurrentTimeBin,signalOld[iPad]); | |
959 | ||
960 | // Store the track index in the dictionary | |
961 | // Note: We store index+1 in order to allow the array to be compressed | |
0c24ba98 | 962 | if ((signalOld[iPad] > 0) && (!fSimpleSim)) { |
e23fbb27 | 963 | for (iDict = 0; iDict < kNDict; iDict++) { |
964 | Int_t oldTrack = dictionary[iDict]->GetDataUnchecked(rowE | |
965 | ,colPos | |
966 | ,iCurrentTimeBin); | |
967 | if (oldTrack == track+1) break; | |
968 | if (oldTrack == 0) { | |
969 | dictionary[iDict]->SetDataUnchecked(rowE,colPos,iCurrentTimeBin,track+1); | |
970 | break; | |
971 | } | |
71d9fa7b | 972 | } |
973 | } | |
872a7aba | 974 | |
e23fbb27 | 975 | } // Loop: pads |
f7336fa3 | 976 | |
e23fbb27 | 977 | } // Loop: time bins |
f7336fa3 | 978 | |
e23fbb27 | 979 | } // Loop: electrons of a single hit |
f7336fa3 | 980 | |
e23fbb27 | 981 | } // If: detector and test hit |
f7336fa3 | 982 | |
e23fbb27 | 983 | hit = (AliTRDhit *) fTRD->NextHit(); |
f7336fa3 | 984 | |
e23fbb27 | 985 | } // Loop: hits of one primary track |
986 | ||
987 | } // Loop: primary tracks | |
988 | ||
989 | if (fDebug > 0) { | |
990 | printf("<AliTRDdigitizer::MakeDigits> "); | |
abaf1f1d | 991 | printf("Finished analyzing %d hits\n",countHits); |
992 | } | |
793ff80c | 993 | |
0c24ba98 | 994 | // The coupling factor |
995 | Float_t coupling = fPar->GetPadCoupling() | |
996 | * fPar->GetTimeCoupling(); | |
997 | ||
998 | // The conversion factor | |
999 | Float_t convert = kEl2fC | |
1000 | * fPar->GetChipGain(); | |
6244debe | 1001 | |
793ff80c | 1002 | // Loop through all chambers to finalize the digits |
0c24ba98 | 1003 | Int_t iDetBeg = 0; |
1004 | Int_t iDetEnd = AliTRDgeometry::Ndet(); | |
1005 | if (fSimpleSim) { | |
1006 | iDetBeg = fSimpleDet; | |
1007 | iDetEnd = iDetBeg + 1; | |
1008 | } | |
1009 | for (Int_t iDet = iDetBeg; iDet < iDetEnd; iDet++) { | |
793ff80c | 1010 | |
872a7aba | 1011 | Int_t plane = fGeo->GetPlane(iDet); |
1012 | Int_t sector = fGeo->GetSector(iDet); | |
1013 | Int_t chamber = fGeo->GetChamber(iDet); | |
4487dad0 | 1014 | Int_t nRowMax = fPar->GetRowMax(plane,chamber,sector); |
1015 | Int_t nColMax = fPar->GetColMax(plane); | |
1016 | Int_t nTimeMax = fPar->GetTimeMax(); | |
1017 | Int_t nTimeTotal = fPar->GetTimeTotal(); | |
793ff80c | 1018 | |
e23fbb27 | 1019 | Double_t *inADC = new Double_t[nTimeTotal]; |
1020 | Double_t *outADC = new Double_t[nTimeTotal]; | |
1021 | ||
1022 | if (fDebug > 0) { | |
1023 | printf("<AliTRDdigitizer::MakeDigits> "); | |
793ff80c | 1024 | printf("Digitization for chamber %d\n",iDet); |
1025 | } | |
da581aea | 1026 | |
793ff80c | 1027 | // Add a container for the digits of this detector |
abaf1f1d | 1028 | digits = fDigitsManager->GetDigits(iDet); |
793ff80c | 1029 | // Allocate memory space for the digits buffer |
0c24ba98 | 1030 | if (digits->GetNtime() == 0) { |
1031 | digits->Allocate(nRowMax,nColMax,nTimeTotal); | |
1032 | } | |
1033 | else if (fSimpleSim) { | |
1034 | digits->Clear(); | |
1035 | } | |
1036 | ||
793ff80c | 1037 | // Get the signal container |
1038 | signals = (AliTRDdataArrayF *) signalsArray->At(iDet); | |
1039 | if (signals->GetNtime() == 0) { | |
1040 | // Create missing containers | |
872a7aba | 1041 | signals->Allocate(nRowMax,nColMax,nTimeTotal); |
793ff80c | 1042 | } |
1043 | else { | |
1044 | // Expand the container if neccessary | |
1045 | if (fCompress) signals->Expand(); | |
1046 | } | |
1047 | // Create the missing dictionary containers | |
0c24ba98 | 1048 | if (!fSimpleSim) { |
1049 | for (iDict = 0; iDict < kNDict; iDict++) { | |
1050 | dictionary[iDict] = fDigitsManager->GetDictionary(iDet,iDict); | |
1051 | if (dictionary[iDict]->GetNtime() == 0) { | |
1052 | dictionary[iDict]->Allocate(nRowMax,nColMax,nTimeTotal); | |
1053 | } | |
1054 | } | |
793ff80c | 1055 | } |
f7336fa3 | 1056 | |
793ff80c | 1057 | Int_t nDigits = 0; |
1058 | ||
6244debe | 1059 | // Don't create noise in detectors that are switched off |
1060 | if (CheckDetector(plane,chamber,sector)) { | |
1061 | ||
1062 | // Create the digits for this chamber | |
872a7aba | 1063 | for (iRow = 0; iRow < nRowMax; iRow++ ) { |
1064 | for (iCol = 0; iCol < nColMax; iCol++ ) { | |
6244debe | 1065 | |
e23fbb27 | 1066 | // Create summable digits |
1067 | if (fSDigits) { | |
6244debe | 1068 | |
e23fbb27 | 1069 | for (iTime = 0; iTime < nTimeTotal; iTime++) { |
872a7aba | 1070 | Float_t signalAmp = signals->GetDataUnchecked(iRow,iCol,iTime); |
abaf1f1d | 1071 | signalAmp *= fSDigitsScale; |
e23fbb27 | 1072 | signalAmp = TMath::Min(signalAmp,(Float_t) 1.0e9); |
abaf1f1d | 1073 | Int_t adc = (Int_t) signalAmp; |
4487dad0 | 1074 | if (adc > 0) nDigits++; |
872a7aba | 1075 | digits->SetDataUnchecked(iRow,iCol,iTime,adc); |
c1e4b257 | 1076 | } |
6244debe | 1077 | |
e23fbb27 | 1078 | } |
1079 | // Create normal digits | |
1080 | else { | |
6244debe | 1081 | |
e23fbb27 | 1082 | for (iTime = 0; iTime < nTimeTotal; iTime++) { |
1083 | Float_t signalAmp = signals->GetDataUnchecked(iRow,iCol,iTime); | |
0c24ba98 | 1084 | // Pad and time coupling |
1085 | signalAmp *= coupling; | |
7e582e9f | 1086 | // Add the noise, starting from minus ADC baseline in electrons |
1087 | Double_t baselineEl = fPar->GetADCbaseline() * (fPar->GetADCinRange() | |
1088 | / fPar->GetADCoutRange()) | |
1089 | / convert; | |
1090 | signalAmp = TMath::Max((Double_t) gRandom->Gaus(signalAmp,fPar->GetNoise()) | |
1091 | ,-baselineEl); | |
6244debe | 1092 | // Convert to mV |
1093 | signalAmp *= convert; | |
7e582e9f | 1094 | // Add ADC baseline in mV |
1095 | signalAmp += fPar->GetADCbaseline() * (fPar->GetADCinRange() | |
1096 | / fPar->GetADCoutRange()); | |
1097 | // Convert to ADC counts. Set the overflow-bit fADCoutRange if the | |
6244debe | 1098 | // signal is larger than fADCinRange |
1099 | Int_t adc = 0; | |
4487dad0 | 1100 | if (signalAmp >= fPar->GetADCinRange()) { |
1101 | adc = ((Int_t) fPar->GetADCoutRange()); | |
6244debe | 1102 | } |
1103 | else { | |
4487dad0 | 1104 | adc = ((Int_t) (signalAmp * (fPar->GetADCoutRange() |
1105 | / fPar->GetADCinRange()))); | |
6244debe | 1106 | } |
e23fbb27 | 1107 | inADC[iTime] = adc; |
1108 | outADC[iTime] = adc; | |
1109 | } | |
6244debe | 1110 | |
e23fbb27 | 1111 | // Apply the tail cancelation via the digital filter |
4487dad0 | 1112 | if (fPar->TCOn()) { |
1113 | DeConvExp(inADC,outADC,nTimeTotal,fPar->GetTCnexp()); | |
e23fbb27 | 1114 | } |
1115 | ||
1116 | for (iTime = 0; iTime < nTimeTotal; iTime++) { | |
6244debe | 1117 | // Store the amplitude of the digit if above threshold |
4487dad0 | 1118 | if (outADC[iTime] > fPar->GetADCthreshold()) { |
e23fbb27 | 1119 | if (fDebug > 2) { |
1120 | printf(" iRow = %d, iCol = %d, iTime = %d, adc = %f\n" | |
1121 | ,iRow,iCol,iTime,outADC[iTime]); | |
6244debe | 1122 | } |
1123 | nDigits++; | |
3583ac1a | 1124 | digits->SetDataUnchecked(iRow,iCol,iTime,((Int_t) outADC[iTime])); |
6244debe | 1125 | } |
6244debe | 1126 | } |
1127 | ||
1128 | } | |
e23fbb27 | 1129 | |
6244debe | 1130 | } |
793ff80c | 1131 | } |
6244debe | 1132 | |
793ff80c | 1133 | } |
1134 | ||
1135 | // Compress the arrays | |
0c24ba98 | 1136 | if (!fSimpleSim) { |
1137 | digits->Compress(1,0); | |
1138 | for (iDict = 0; iDict < kNDict; iDict++) { | |
1139 | dictionary[iDict]->Compress(1,0); | |
1140 | } | |
f7336fa3 | 1141 | |
0c24ba98 | 1142 | totalSizeDigits += digits->GetSize(); |
1143 | totalSizeDict0 += dictionary[0]->GetSize(); | |
1144 | totalSizeDict1 += dictionary[1]->GetSize(); | |
1145 | totalSizeDict2 += dictionary[2]->GetSize(); | |
f7336fa3 | 1146 | |
0c24ba98 | 1147 | Float_t nPixel = nRowMax * nColMax * nTimeMax; |
1148 | if (fDebug > 0) { | |
1149 | printf("<AliTRDdigitizer::MakeDigits> "); | |
1150 | printf("Found %d digits in detector %d (%3.0f).\n" | |
1151 | ,nDigits,iDet | |
1152 | ,100.0 * ((Float_t) nDigits) / nPixel); | |
1153 | } | |
1154 | ||
1155 | if (fCompress) signals->Compress(1,0); | |
abaf1f1d | 1156 | |
0c24ba98 | 1157 | } |
f7336fa3 | 1158 | |
e23fbb27 | 1159 | delete [] inADC; |
1160 | delete [] outADC; | |
1161 | ||
f7336fa3 | 1162 | } |
1163 | ||
0c24ba98 | 1164 | if (signalsArray) { |
1165 | delete signalsArray; | |
1166 | signalsArray = 0; | |
1167 | } | |
1168 | ||
e23fbb27 | 1169 | if (fDebug > 0) { |
1170 | printf("<AliTRDdigitizer::MakeDigits> "); | |
abaf1f1d | 1171 | printf("Total number of analyzed hits = %d\n",countHits); |
0c24ba98 | 1172 | if (!fSimpleSim) { |
1173 | printf("<AliTRDdigitizer::MakeDigits> "); | |
1174 | printf("Total digits data size = %d, %d, %d, %d\n",totalSizeDigits | |
1175 | ,totalSizeDict0 | |
1176 | ,totalSizeDict1 | |
1177 | ,totalSizeDict2); | |
1178 | } | |
abaf1f1d | 1179 | } |
1180 | ||
1181 | return kTRUE; | |
1182 | ||
1183 | } | |
1184 | ||
1185 | //_____________________________________________________________________________ | |
1186 | void AliTRDdigitizer::AddSDigitsManager(AliTRDdigitsManager *man) | |
1187 | { | |
1188 | // | |
1189 | // Add a digits manager for s-digits to the input list. | |
1190 | // | |
1191 | ||
1192 | fSDigitsManagerList->Add(man); | |
1193 | ||
1194 | } | |
1195 | ||
b1113c6b | 1196 | //_____________________________________________________________________________ |
1197 | void AliTRDdigitizer::DeleteSDigitsManager() | |
1198 | { | |
1199 | // | |
1200 | // Removes digits manager from the input list. | |
1201 | // | |
1202 | ||
1203 | fSDigitsManagerList->Delete(); | |
1204 | ||
1205 | } | |
1206 | ||
abaf1f1d | 1207 | //_____________________________________________________________________________ |
1208 | Bool_t AliTRDdigitizer::ConvertSDigits() | |
1209 | { | |
1210 | // | |
1211 | // Converts s-digits to normal digits | |
1212 | // | |
1213 | ||
1214 | // Number of track dictionary arrays | |
1215 | const Int_t kNDict = AliTRDdigitsManager::kNDict; | |
1216 | ||
1217 | // Converts number of electrons to fC | |
1218 | const Double_t kEl2fC = 1.602E-19 * 1.0E15; | |
1219 | ||
1220 | Int_t iDict = 0; | |
e23fbb27 | 1221 | Int_t iRow; |
1222 | Int_t iCol; | |
1223 | Int_t iTime; | |
abaf1f1d | 1224 | |
4487dad0 | 1225 | if (!fPar) { |
1226 | fPar = new AliTRDparameter("TRDparameter","Standard parameter"); | |
1227 | if (fDebug > 0) { | |
1228 | printf("<AliTRDdigitizer::ConvertSDigits> "); | |
1229 | printf("Create the default parameter object\n"); | |
1230 | } | |
abaf1f1d | 1231 | } |
1232 | ||
1233 | Double_t sDigitsScale = 1.0 / GetSDigitsScale(); | |
4487dad0 | 1234 | Double_t noise = fPar->GetNoise(); |
1235 | Double_t padCoupling = fPar->GetPadCoupling(); | |
1236 | Double_t timeCoupling = fPar->GetTimeCoupling(); | |
1237 | Double_t chipGain = fPar->GetChipGain(); | |
0c24ba98 | 1238 | Double_t coupling = padCoupling * timeCoupling; |
1239 | Double_t convert = kEl2fC * chipGain; | |
4487dad0 | 1240 | Double_t adcInRange = fPar->GetADCinRange(); |
1241 | Double_t adcOutRange = fPar->GetADCoutRange(); | |
1242 | Int_t adcThreshold = fPar->GetADCthreshold(); | |
7e582e9f | 1243 | Int_t adcBaseline = fPar->GetADCbaseline(); |
abaf1f1d | 1244 | |
1245 | AliTRDdataArrayI *digitsIn; | |
1246 | AliTRDdataArrayI *digitsOut; | |
1247 | AliTRDdataArrayI *dictionaryIn[kNDict]; | |
1248 | AliTRDdataArrayI *dictionaryOut[kNDict]; | |
1249 | ||
1250 | // Loop through the detectors | |
1251 | for (Int_t iDet = 0; iDet < AliTRDgeometry::Ndet(); iDet++) { | |
da581aea | 1252 | |
e23fbb27 | 1253 | if (fDebug > 0) { |
1254 | printf("<AliTRDdigitizer::ConvertSDigits> "); | |
abaf1f1d | 1255 | printf("Convert detector %d to digits.\n",iDet); |
1256 | } | |
1257 | ||
1258 | Int_t plane = fGeo->GetPlane(iDet); | |
1259 | Int_t sector = fGeo->GetSector(iDet); | |
1260 | Int_t chamber = fGeo->GetChamber(iDet); | |
4487dad0 | 1261 | Int_t nRowMax = fPar->GetRowMax(plane,chamber,sector); |
1262 | Int_t nColMax = fPar->GetColMax(plane); | |
1263 | Int_t nTimeTotal = fPar->GetTimeTotal(); | |
abaf1f1d | 1264 | |
e23fbb27 | 1265 | Double_t *inADC = new Double_t[nTimeTotal]; |
1266 | Double_t *outADC = new Double_t[nTimeTotal]; | |
1267 | ||
abaf1f1d | 1268 | digitsIn = fSDigitsManager->GetDigits(iDet); |
1269 | digitsIn->Expand(); | |
1270 | digitsOut = fDigitsManager->GetDigits(iDet); | |
1271 | digitsOut->Allocate(nRowMax,nColMax,nTimeTotal); | |
1272 | for (iDict = 0; iDict < kNDict; iDict++) { | |
1273 | dictionaryIn[iDict] = fSDigitsManager->GetDictionary(iDet,iDict); | |
1274 | dictionaryIn[iDict]->Expand(); | |
1275 | dictionaryOut[iDict] = fDigitsManager->GetDictionary(iDet,iDict); | |
1276 | dictionaryOut[iDict]->Allocate(nRowMax,nColMax,nTimeTotal); | |
1277 | } | |
1278 | ||
e23fbb27 | 1279 | for (iRow = 0; iRow < nRowMax; iRow++ ) { |
1280 | for (iCol = 0; iCol < nColMax; iCol++ ) { | |
abaf1f1d | 1281 | |
e23fbb27 | 1282 | for (iTime = 0; iTime < nTimeTotal; iTime++) { |
abaf1f1d | 1283 | Double_t signal = (Double_t) digitsIn->GetDataUnchecked(iRow,iCol,iTime); |
1284 | signal *= sDigitsScale; | |
0c24ba98 | 1285 | // Pad and time coupling |
1286 | signal *= coupling; | |
7e582e9f | 1287 | // Add the noise, starting from minus ADC baseline in electrons |
1288 | Double_t baselineEl = adcBaseline * (adcInRange / adcOutRange) / convert; | |
1289 | signal = TMath::Max((Double_t) gRandom->Gaus(signal,noise),-baselineEl); | |
abaf1f1d | 1290 | // Convert to mV |
1291 | signal *= convert; | |
7e582e9f | 1292 | // add ADC baseline in mV |
1293 | signal += adcBaseline * (adcInRange / adcOutRange); | |
abaf1f1d | 1294 | // Convert to ADC counts. Set the overflow-bit adcOutRange if the |
1295 | // signal is larger than adcInRange | |
1296 | Int_t adc = 0; | |
1297 | if (signal >= adcInRange) { | |
1298 | adc = ((Int_t) adcOutRange); | |
1299 | } | |
1300 | else { | |
1301 | adc = ((Int_t) (signal * (adcOutRange / adcInRange))); | |
1302 | } | |
e23fbb27 | 1303 | inADC[iTime] = adc; |
1304 | outADC[iTime] = adc; | |
1305 | } | |
1306 | ||
1307 | // Apply the tail cancelation via the digital filter | |
4487dad0 | 1308 | if (fPar->TCOn()) { |
1309 | DeConvExp(inADC,outADC,nTimeTotal,fPar->GetTCnexp()); | |
e23fbb27 | 1310 | } |
1311 | ||
1312 | for (iTime = 0; iTime < nTimeTotal; iTime++) { | |
abaf1f1d | 1313 | // Store the amplitude of the digit if above threshold |
e23fbb27 | 1314 | if (outADC[iTime] > adcThreshold) { |
3583ac1a | 1315 | digitsOut->SetDataUnchecked(iRow,iCol,iTime,((Int_t) outADC[iTime])); |
e23fbb27 | 1316 | // Copy the dictionary |
1317 | for (iDict = 0; iDict < kNDict; iDict++) { | |
1318 | Int_t track = dictionaryIn[iDict]->GetDataUnchecked(iRow,iCol,iTime); | |
1319 | dictionaryOut[iDict]->SetDataUnchecked(iRow,iCol,iTime,track); | |
1320 | } | |
abaf1f1d | 1321 | } |
abaf1f1d | 1322 | } |
e23fbb27 | 1323 | |
abaf1f1d | 1324 | } |
1325 | } | |
1326 | ||
1327 | if (fCompress) { | |
1328 | digitsIn->Compress(1,0); | |
1329 | digitsOut->Compress(1,0); | |
1330 | for (iDict = 0; iDict < kNDict; iDict++) { | |
1331 | dictionaryIn[iDict]->Compress(1,0); | |
1332 | dictionaryOut[iDict]->Compress(1,0); | |
1333 | } | |
1334 | } | |
1335 | ||
e23fbb27 | 1336 | delete [] inADC; |
1337 | delete [] outADC; | |
1338 | ||
abaf1f1d | 1339 | } |
f7336fa3 | 1340 | |
1341 | return kTRUE; | |
1342 | ||
1343 | } | |
1344 | ||
16bf9884 | 1345 | //_____________________________________________________________________________ |
abaf1f1d | 1346 | Bool_t AliTRDdigitizer::MergeSDigits() |
16bf9884 | 1347 | { |
1348 | // | |
abaf1f1d | 1349 | // Merges the input s-digits: |
1350 | // - The amplitude of the different inputs are summed up. | |
1351 | // - Of the track IDs from the input dictionaries only one is | |
1352 | // kept for each input. This works for maximal 3 different merged inputs. | |
16bf9884 | 1353 | // |
1354 | ||
abaf1f1d | 1355 | // Number of track dictionary arrays |
1356 | const Int_t kNDict = AliTRDdigitsManager::kNDict; | |
1357 | ||
4487dad0 | 1358 | if (!fPar) { |
1359 | fPar = new AliTRDparameter("TRDparameter","Standard parameter"); | |
1360 | if (fDebug > 0) { | |
1361 | printf("<AliTRDdigitizer::MergeSDigits> "); | |
1362 | printf("Create the default parameter object\n"); | |
1363 | } | |
1364 | } | |
1365 | ||
abaf1f1d | 1366 | Int_t iDict = 0; |
e23fbb27 | 1367 | Int_t jDict = 0; |
abaf1f1d | 1368 | |
1369 | AliTRDdataArrayI *digitsA; | |
1370 | AliTRDdataArrayI *digitsB; | |
1371 | AliTRDdataArrayI *dictionaryA[kNDict]; | |
1372 | AliTRDdataArrayI *dictionaryB[kNDict]; | |
1373 | ||
1374 | // Get the first s-digits | |
1375 | fSDigitsManager = (AliTRDdigitsManager *) fSDigitsManagerList->First(); | |
1376 | if (!fSDigitsManager) return kFALSE; | |
1377 | ||
1378 | // Loop through the other sets of s-digits | |
1379 | AliTRDdigitsManager *mergeSDigitsManager; | |
1380 | mergeSDigitsManager = (AliTRDdigitsManager *) | |
1381 | fSDigitsManagerList->After(fSDigitsManager); | |
1382 | ||
e23fbb27 | 1383 | if (fDebug > 0) { |
abaf1f1d | 1384 | if (mergeSDigitsManager) { |
e23fbb27 | 1385 | printf("<AliTRDdigitizer::MergeSDigits> "); |
1386 | printf("Merge %d input files.\n",fSDigitsManagerList->GetSize()); | |
abaf1f1d | 1387 | } |
1388 | else { | |
e23fbb27 | 1389 | printf("<AliTRDdigitizer::MergeSDigits> "); |
abaf1f1d | 1390 | printf("Only one input file.\n"); |
1391 | } | |
1392 | } | |
1393 | ||
1394 | Int_t iMerge = 0; | |
1395 | while (mergeSDigitsManager) { | |
1396 | ||
1397 | iMerge++; | |
1398 | ||
1399 | // Loop through the detectors | |
1400 | for (Int_t iDet = 0; iDet < AliTRDgeometry::Ndet(); iDet++) { | |
1401 | ||
1402 | Int_t plane = fGeo->GetPlane(iDet); | |
1403 | Int_t sector = fGeo->GetSector(iDet); | |
1404 | Int_t chamber = fGeo->GetChamber(iDet); | |
4487dad0 | 1405 | Int_t nRowMax = fPar->GetRowMax(plane,chamber,sector); |
1406 | Int_t nColMax = fPar->GetColMax(plane); | |
1407 | Int_t nTimeTotal = fPar->GetTimeTotal(); | |
abaf1f1d | 1408 | |
1409 | // Loop through the pixels of one detector and add the signals | |
1410 | digitsA = fSDigitsManager->GetDigits(iDet); | |
1411 | digitsB = mergeSDigitsManager->GetDigits(iDet); | |
1412 | digitsA->Expand(); | |
1413 | digitsB->Expand(); | |
1414 | for (iDict = 0; iDict < kNDict; iDict++) { | |
1415 | dictionaryA[iDict] = fSDigitsManager->GetDictionary(iDet,iDict); | |
1416 | dictionaryB[iDict] = mergeSDigitsManager->GetDictionary(iDet,iDict); | |
1417 | dictionaryA[iDict]->Expand(); | |
1418 | dictionaryB[iDict]->Expand(); | |
1419 | } | |
1420 | ||
4487dad0 | 1421 | // Merge only detectors that contain a signal |
1422 | Bool_t doMerge = kTRUE; | |
1423 | if (fMergeSignalOnly) { | |
1424 | if (digitsA->GetOverThreshold(0) == 0) { | |
1425 | doMerge = kFALSE; | |
1426 | } | |
abaf1f1d | 1427 | } |
1428 | ||
4487dad0 | 1429 | if (doMerge) { |
abaf1f1d | 1430 | |
4487dad0 | 1431 | if (fDebug > 0) { |
1432 | printf("<AliTRDdigitizer::MergeSDigits> "); | |
1433 | printf("Merge detector %d of input no.%d\n",iDet,iMerge+1); | |
1434 | } | |
abaf1f1d | 1435 | |
4487dad0 | 1436 | for (Int_t iRow = 0; iRow < nRowMax; iRow++ ) { |
1437 | for (Int_t iCol = 0; iCol < nColMax; iCol++ ) { | |
1438 | for (Int_t iTime = 0; iTime < nTimeTotal; iTime++) { | |
1439 | ||
1440 | // Add the amplitudes of the summable digits | |
1441 | Int_t ampA = digitsA->GetDataUnchecked(iRow,iCol,iTime); | |
1442 | Int_t ampB = digitsB->GetDataUnchecked(iRow,iCol,iTime); | |
1443 | ampA += ampB; | |
1444 | digitsA->SetDataUnchecked(iRow,iCol,iTime,ampA); | |
1445 | ||
1446 | // Add the mask to the track id if defined. | |
1447 | for (iDict = 0; iDict < kNDict; iDict++) { | |
1448 | Int_t trackB = dictionaryB[iDict]->GetDataUnchecked(iRow,iCol,iTime); | |
1449 | if ((fMasks) && (trackB > 0)) { | |
1450 | for (jDict = 0; jDict < kNDict; jDict++) { | |
1451 | Int_t trackA = dictionaryA[iDict]->GetDataUnchecked(iRow,iCol,iTime); | |
1452 | if (trackA == 0) { | |
1453 | trackA = trackB + fMasks[iMerge]; | |
1454 | dictionaryA[iDict]->SetDataUnchecked(iRow,iCol,iTime,trackA); | |
1455 | } | |
1456 | } | |
1457 | } | |
e23fbb27 | 1458 | } |
abaf1f1d | 1459 | |
4487dad0 | 1460 | } |
abaf1f1d | 1461 | } |
4487dad0 | 1462 | } |
1463 | ||
abaf1f1d | 1464 | } |
1465 | ||
1466 | if (fCompress) { | |
1467 | digitsA->Compress(1,0); | |
1468 | digitsB->Compress(1,0); | |
1469 | for (iDict = 0; iDict < kNDict; iDict++) { | |
1470 | dictionaryA[iDict]->Compress(1,0); | |
1471 | dictionaryB[iDict]->Compress(1,0); | |
1472 | } | |
1473 | } | |
1474 | ||
1475 | } | |
1476 | ||
1477 | // The next set of s-digits | |
1478 | mergeSDigitsManager = (AliTRDdigitsManager *) | |
1479 | fSDigitsManagerList->After(mergeSDigitsManager); | |
1480 | ||
1481 | } | |
1482 | ||
16bf9884 | 1483 | return kTRUE; |
1484 | ||
1485 | } | |
1486 | ||
abaf1f1d | 1487 | //_____________________________________________________________________________ |
1488 | Bool_t AliTRDdigitizer::SDigits2Digits() | |
1489 | { | |
1490 | // | |
1491 | // Merges the input s-digits and converts them to normal digits | |
1492 | // | |
1493 | ||
1494 | if (!MergeSDigits()) return kFALSE; | |
1495 | ||
1496 | return ConvertSDigits(); | |
1497 | ||
1498 | } | |
1499 | ||
793ff80c | 1500 | //_____________________________________________________________________________ |
1501 | Bool_t AliTRDdigitizer::CheckDetector(Int_t plane, Int_t chamber, Int_t sector) | |
1502 | { | |
1503 | // | |
1504 | // Checks whether a detector is enabled | |
1505 | // | |
1506 | ||
0c24ba98 | 1507 | if (fSimpleSim) return kTRUE; |
1508 | ||
793ff80c | 1509 | if ((fTRD->GetSensChamber() >= 0) && |
1510 | (fTRD->GetSensChamber() != chamber)) return kFALSE; | |
1511 | if ((fTRD->GetSensPlane() >= 0) && | |
c1e4b257 | 1512 | (fTRD->GetSensPlane() != plane)) return kFALSE; |
793ff80c | 1513 | if ( fTRD->GetSensSector() >= 0) { |
1514 | Int_t sens1 = fTRD->GetSensSector(); | |
1515 | Int_t sens2 = sens1 + fTRD->GetSensSectorRange(); | |
1516 | sens2 -= ((Int_t) (sens2 / AliTRDgeometry::Nsect())) | |
1517 | * AliTRDgeometry::Nsect(); | |
1518 | if (sens1 < sens2) { | |
1519 | if ((sector < sens1) || (sector >= sens2)) return kFALSE; | |
1520 | } | |
1521 | else { | |
1522 | if ((sector < sens1) && (sector >= sens2)) return kFALSE; | |
1523 | } | |
1524 | } | |
1525 | ||
1526 | return kTRUE; | |
1527 | ||
1528 | } | |
1529 | ||
f7336fa3 | 1530 | //_____________________________________________________________________________ |
0a29d0f1 | 1531 | Bool_t AliTRDdigitizer::WriteDigits() const |
f7336fa3 | 1532 | { |
1533 | // | |
1534 | // Writes out the TRD-digits and the dictionaries | |
1535 | // | |
1536 | ||
bdbb05bb | 1537 | //Write parameters |
1538 | fRunLoader->CdGAFile(); | |
1539 | if (!gFile->Get("TRDparameter")) GetParameter()->Write(); | |
1540 | ||
da581aea | 1541 | // Store the digits and the dictionary in the tree |
abaf1f1d | 1542 | return fDigitsManager->WriteDigits(); |
f7336fa3 | 1543 | |
1544 | } | |
793ff80c | 1545 | |
e23fbb27 | 1546 | //_____________________________________________________________________________ |
1547 | void AliTRDdigitizer::DeConvExp(Double_t *source, Double_t *target | |
1548 | , Int_t n, Int_t nexp) | |
1549 | { | |
1550 | // | |
1551 | // Does the deconvolution by the digital filter. | |
1552 | // | |
1553 | // Author: Marcus Gutfleisch, KIP Heidelberg | |
1554 | // Optimized for: New TRF from Venelin Angelov, simulated with CADENCE | |
1555 | // Pad-ground capacitance = 25 pF | |
1556 | // Pad-pad cross talk capacitance = 6 pF | |
1557 | // For 10 MHz digitization, corresponding to 20 time bins | |
1558 | // in the drift region | |
1559 | // | |
1560 | ||
1561 | Double_t rates[2]; | |
1562 | Double_t coefficients[2]; | |
81a6930e | 1563 | Double_t Dt = 0.100; // time bin width [mus] for 10 MHz sampling frequence |
e23fbb27 | 1564 | |
1565 | /* initialize (coefficient = alpha, rates = lambda) */ | |
1566 | ||
81a6930e | 1567 | rates[0] = 0.7680; |
1568 | rates[1] = 0.0995; | |
1569 | ||
1570 | rates[0] = TMath::Exp(-Dt/(rates[0])); | |
1571 | rates[1] = TMath::Exp(-Dt/(rates[1])); | |
1572 | ||
1573 | // dummy initialization | |
1574 | coefficients[0] = 0.0000; | |
1575 | coefficients[1] = 0.0000; | |
1576 | ||
e23fbb27 | 1577 | if( nexp == 1 ) { |
81a6930e | 1578 | coefficients[0] = 0.0844; |
1579 | coefficients[1] = 0.0000; | |
e23fbb27 | 1580 | } |
1581 | if( nexp == 2 ) { | |
81a6930e | 1582 | coefficients[0] = 0.1445; |
1583 | coefficients[1] = 0.7524; | |
e23fbb27 | 1584 | } |
1585 | ||
1586 | Int_t i, k; | |
1587 | Double_t reminder[2]; | |
1588 | Double_t correction, result; | |
1589 | ||
1590 | /* attention: computation order is important */ | |
1591 | correction=0.0; | |
1592 | for ( k = 0; k < nexp; k++ ) reminder[k]=0.0; | |
1593 | ||
1594 | for ( i = 0; i < n; i++ ) { | |
1595 | result = ( source[i] - correction ); /* no rescaling */ | |
1596 | target[i] = result; | |
1597 | ||
1598 | for ( k = 0; k < nexp; k++ ) reminder[k] = rates[k] | |
1599 | * ( reminder[k] + coefficients[k] * result); | |
1600 | ||
1601 | correction=0.0; | |
1602 | for ( k = 0; k < nexp; k++ ) correction += reminder[k]; | |
1603 | } | |
1604 | ||
1605 | } | |
1606 | ||
8e64dd77 | 1607 | //_____________________________________________________________________________ |
88cb7938 | 1608 | void AliTRDdigitizer::InitOutput(Int_t iEvent) |
8e64dd77 | 1609 | { |
1610 | // | |
1611 | // Initializes the output branches | |
1612 | // | |
1613 | ||
1614 | fEvent = iEvent; | |
88cb7938 | 1615 | |
1616 | if (!fRunLoader) | |
1617 | { | |
1618 | Error("InitOutput","Run Loader is NULL"); | |
1619 | return; | |
1620 | } | |
1621 | AliLoader* loader = fRunLoader->GetLoader("TRDLoader"); | |
1622 | if (!loader) | |
1623 | { | |
1624 | Error("Open","Can not get TRD loader from Run Loader"); | |
1625 | return; | |
1626 | } | |
1627 | ||
1628 | TTree* tree = 0; | |
1629 | ||
1630 | if (fSDigits) | |
1631 | { | |
1632 | //if we produce SDigits | |
1633 | tree = loader->TreeS(); | |
1634 | if (!tree) | |
1635 | { | |
1636 | loader->MakeTree("S"); | |
1637 | tree = loader->TreeS(); | |
1638 | } | |
1639 | } | |
1640 | else | |
1641 | {//if we produce Digits | |
1642 | tree = loader->TreeD(); | |
1643 | if (!tree) | |
1644 | { | |
1645 | loader->MakeTree("D"); | |
1646 | tree = loader->TreeD(); | |
1647 | } | |
1648 | } | |
1649 | fDigitsManager->SetEvent(iEvent); | |
1650 | fDigitsManager->MakeBranch(tree); | |
8e64dd77 | 1651 | |
1652 | } |