| 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 // |
| b08ed1cf |
21 | // Authors: C. Blume (blume@ikf.uni-frankfurt.de) // |
| 22 | // C. Lippmann // |
| 23 | // B. Vulpescu // |
| f7336fa3 |
24 | // // |
| 25 | // The following effects are included: // |
| 26 | // - Diffusion // |
| 27 | // - ExB effects // |
| 28 | // - Gas gain including fluctuations // |
| 29 | // - Pad-response (simple Gaussian approximation) // |
| abaf1f1d |
30 | // - Time-response // |
| f7336fa3 |
31 | // - Electronics noise // |
| 32 | // - Electronics gain // |
| 33 | // - Digitization // |
| 34 | // - ADC threshold // |
| 35 | // The corresponding parameter can be adjusted via the various // |
| 36 | // Set-functions. If these parameters are not explicitly set, default // |
| 37 | // values are used (see Init-function). // |
| f7336fa3 |
38 | // // |
| 39 | /////////////////////////////////////////////////////////////////////////////// |
| 40 | |
| 6798b56e |
41 | #include <stdlib.h> |
| 42 | |
| f7336fa3 |
43 | #include <TMath.h> |
| 44 | #include <TVector.h> |
| 45 | #include <TRandom.h> |
| 94de3818 |
46 | #include <TROOT.h> |
| 47 | #include <TTree.h> |
| 793ff80c |
48 | #include <TFile.h> |
| 49 | #include <TF1.h> |
| abaf1f1d |
50 | #include <TList.h> |
| 85cbec76 |
51 | #include <TTask.h> |
| 3becff3c |
52 | #include <TGeoManager.h> |
| 793ff80c |
53 | |
| 54 | #include "AliRun.h" |
| 88cb7938 |
55 | #include "AliRunLoader.h" |
| 56 | #include "AliLoader.h" |
| 57 | #include "AliConfig.h" |
| db30bf0f |
58 | #include "AliMagF.h" |
| 85cbec76 |
59 | #include "AliRunDigitizer.h" |
| 88cb7938 |
60 | #include "AliRunLoader.h" |
| 61 | #include "AliLoader.h" |
| ad2cc20b |
62 | #include "AliLog.h" |
| f7336fa3 |
63 | |
| 64 | #include "AliTRD.h" |
| 793ff80c |
65 | #include "AliTRDhit.h" |
| f7336fa3 |
66 | #include "AliTRDdigitizer.h" |
| da581aea |
67 | #include "AliTRDdataArrayI.h" |
| 68 | #include "AliTRDdataArrayF.h" |
| 793ff80c |
69 | #include "AliTRDsegmentArray.h" |
| da581aea |
70 | #include "AliTRDdigitsManager.h" |
| 793ff80c |
71 | #include "AliTRDgeometry.h" |
| a5cadd36 |
72 | #include "AliTRDpadPlane.h" |
| 3551db50 |
73 | #include "AliTRDcalibDB.h" |
| 74 | #include "AliTRDSimParam.h" |
| 75 | #include "AliTRDCommonParam.h" |
| f7336fa3 |
76 | |
| 4329977a |
77 | #include "Cal/AliTRDCalROC.h" |
| 78 | #include "Cal/AliTRDCalDet.h" |
| 79 | |
| f7336fa3 |
80 | ClassImp(AliTRDdigitizer) |
| 81 | |
| 82 | //_____________________________________________________________________________ |
| 85cbec76 |
83 | AliTRDdigitizer::AliTRDdigitizer() |
| 4d18a639 |
84 | :AliDigitizer() |
| 85 | ,fRunLoader(0) |
| 86 | ,fDigitsManager(0) |
| 87 | ,fSDigitsManager(0) |
| 88 | ,fSDigitsManagerList(0) |
| 89 | ,fTRD(0) |
| 90 | ,fGeo(0) |
| 91 | ,fEvent(0) |
| 92 | ,fMasks(0) |
| 93 | ,fCompress(kTRUE) |
| 94 | ,fSDigits(kFALSE) |
| 95 | ,fSDigitsScale(0.0) |
| 96 | ,fMergeSignalOnly(kFALSE) |
| 97 | ,fDiffLastVdrift(0) |
| 98 | ,fDiffusionT(0.0) |
| 99 | ,fDiffusionL(0.0) |
| 100 | ,fOmegaTau(0.0) |
| 101 | ,fLorentzFactor(0.0) |
| 102 | ,fTimeLastVdrift(0) |
| 103 | ,fTimeStruct1(0) |
| 104 | ,fTimeStruct2(0) |
| 105 | ,fVDlo(0) |
| 106 | ,fVDhi(0) |
| f7336fa3 |
107 | { |
| 108 | // |
| 109 | // AliTRDdigitizer default constructor |
| 110 | // |
| 3551db50 |
111 | |
| 112 | Init(); |
| 3becff3c |
113 | |
| f7336fa3 |
114 | } |
| 115 | |
| 116 | //_____________________________________________________________________________ |
| 4d18a639 |
117 | AliTRDdigitizer::AliTRDdigitizer(const Text_t *name, const Text_t *title) |
| 118 | :AliDigitizer(name,title) |
| 119 | ,fRunLoader(0) |
| 120 | ,fDigitsManager(0) |
| 121 | ,fSDigitsManager(0) |
| 122 | ,fSDigitsManagerList(0) |
| 123 | ,fTRD(0) |
| 124 | ,fGeo(0) |
| 125 | ,fEvent(0) |
| 126 | ,fMasks(0) |
| 127 | ,fCompress(kTRUE) |
| 128 | ,fSDigits(kFALSE) |
| 129 | ,fSDigitsScale(0.0) |
| 130 | ,fMergeSignalOnly(kFALSE) |
| 131 | ,fDiffLastVdrift(0) |
| 132 | ,fDiffusionT(0.0) |
| 133 | ,fDiffusionL(0.0) |
| 134 | ,fOmegaTau(0.0) |
| 135 | ,fLorentzFactor(0.0) |
| 136 | ,fTimeLastVdrift(0) |
| 137 | ,fTimeStruct1(0) |
| 138 | ,fTimeStruct2(0) |
| 139 | ,fVDlo(0) |
| 140 | ,fVDhi(0) |
| f7336fa3 |
141 | { |
| 142 | // |
| 85cbec76 |
143 | // AliTRDdigitizer constructor |
| 144 | // |
| 145 | |
| 3551db50 |
146 | Init(); |
| 3becff3c |
147 | |
| 85cbec76 |
148 | } |
| 149 | |
| 150 | //_____________________________________________________________________________ |
| 151 | AliTRDdigitizer::AliTRDdigitizer(AliRunDigitizer *manager |
| 4d18a639 |
152 | , const Text_t *name, const Text_t *title) |
| 153 | :AliDigitizer(manager,name,title) |
| 154 | ,fRunLoader(0) |
| 155 | ,fDigitsManager(0) |
| 156 | ,fSDigitsManager(0) |
| 157 | ,fSDigitsManagerList(0) |
| 158 | ,fTRD(0) |
| 159 | ,fGeo(0) |
| 160 | ,fEvent(0) |
| 161 | ,fMasks(0) |
| 162 | ,fCompress(kTRUE) |
| 163 | ,fSDigits(kFALSE) |
| 164 | ,fSDigitsScale(0.0) |
| 165 | ,fMergeSignalOnly(kFALSE) |
| 166 | ,fDiffLastVdrift(0) |
| 167 | ,fDiffusionT(0.0) |
| 168 | ,fDiffusionL(0.0) |
| 169 | ,fOmegaTau(0.0) |
| 170 | ,fLorentzFactor(0.0) |
| 171 | ,fTimeLastVdrift(0) |
| 172 | ,fTimeStruct1(0) |
| 173 | ,fTimeStruct2(0) |
| 174 | ,fVDlo(0) |
| 175 | ,fVDhi(0) |
| 85cbec76 |
176 | { |
| 177 | // |
| 178 | // AliTRDdigitizer constructor |
| f7336fa3 |
179 | // |
| 180 | |
| 3551db50 |
181 | Init(); |
| 3becff3c |
182 | |
| bfc40adc |
183 | } |
| 184 | |
| 185 | //_____________________________________________________________________________ |
| 186 | AliTRDdigitizer::AliTRDdigitizer(AliRunDigitizer *manager) |
| 4d18a639 |
187 | :AliDigitizer(manager,"AliTRDdigitizer","TRD digitizer") |
| 188 | ,fRunLoader(0) |
| 189 | ,fDigitsManager(0) |
| 190 | ,fSDigitsManager(0) |
| 191 | ,fSDigitsManagerList(0) |
| 192 | ,fTRD(0) |
| 193 | ,fGeo(0) |
| 194 | ,fEvent(0) |
| 195 | ,fMasks(0) |
| 196 | ,fCompress(kTRUE) |
| 197 | ,fSDigits(kFALSE) |
| 198 | ,fSDigitsScale(0.0) |
| 199 | ,fMergeSignalOnly(kFALSE) |
| 200 | ,fDiffLastVdrift(0) |
| 201 | ,fDiffusionT(0.0) |
| 202 | ,fDiffusionL(0.0) |
| 203 | ,fOmegaTau(0.0) |
| 204 | ,fLorentzFactor(0.0) |
| 205 | ,fTimeLastVdrift(0) |
| 206 | ,fTimeStruct1(0) |
| 207 | ,fTimeStruct2(0) |
| 208 | ,fVDlo(0) |
| 209 | ,fVDhi(0) |
| bfc40adc |
210 | { |
| 211 | // |
| 212 | // AliTRDdigitizer constructor |
| 213 | // |
| 214 | |
| 3551db50 |
215 | Init(); |
| 3becff3c |
216 | |
| 3551db50 |
217 | } |
| 88cb7938 |
218 | |
| 3551db50 |
219 | //_____________________________________________________________________________ |
| 220 | Bool_t AliTRDdigitizer::Init() |
| 221 | { |
| 3becff3c |
222 | // |
| 223 | // Initialize the digitizer with default values |
| 224 | // |
| 225 | |
| 85a5290f |
226 | fRunLoader = 0; |
| 4487dad0 |
227 | fDigitsManager = 0; |
| 4487dad0 |
228 | fSDigitsManager = 0; |
| 85a5290f |
229 | fSDigitsManagerList = 0; |
| 4487dad0 |
230 | fTRD = 0; |
| 231 | fGeo = 0; |
| 3becff3c |
232 | |
| abaf1f1d |
233 | fEvent = 0; |
| 85a5290f |
234 | fMasks = 0; |
| abaf1f1d |
235 | fCompress = kTRUE; |
| abaf1f1d |
236 | fSDigits = kFALSE; |
| 4d18a639 |
237 | fSDigitsScale = 100.0; |
| 4487dad0 |
238 | fMergeSignalOnly = kFALSE; |
| 3551db50 |
239 | |
| 4d18a639 |
240 | fTimeLastVdrift = -1; |
| 241 | fTimeStruct1 = 0; |
| 242 | fTimeStruct2 = 0; |
| 243 | fVDlo = 0; |
| 244 | fVDhi = 0; |
| 3551db50 |
245 | |
| 4d18a639 |
246 | fDiffLastVdrift = -1; |
| 247 | fDiffusionT = 0.0; |
| 248 | fDiffusionL = 0.0; |
| 249 | fLorentzFactor = 0.0; |
| 793ff80c |
250 | |
| 3551db50 |
251 | return AliDigitizer::Init(); |
| 3becff3c |
252 | |
| f7336fa3 |
253 | } |
| 254 | |
| 8230f242 |
255 | //_____________________________________________________________________________ |
| 4d18a639 |
256 | AliTRDdigitizer::AliTRDdigitizer(const AliTRDdigitizer &d) |
| 257 | :AliDigitizer(d) |
| 258 | ,fRunLoader(0) |
| 259 | ,fDigitsManager(0) |
| 260 | ,fSDigitsManager(0) |
| 261 | ,fSDigitsManagerList(0) |
| 262 | ,fTRD(0) |
| 263 | ,fGeo(0) |
| 264 | ,fEvent(0) |
| 265 | ,fMasks(0) |
| 266 | ,fCompress(d.fCompress) |
| 267 | ,fSDigits(d.fSDigits) |
| 268 | ,fSDigitsScale(d.fSDigitsScale) |
| 269 | ,fMergeSignalOnly(d.fMergeSignalOnly) |
| 270 | ,fDiffLastVdrift(-1) |
| 271 | ,fDiffusionT(0.0) |
| 272 | ,fDiffusionL(0.0) |
| 273 | ,fOmegaTau(0.0) |
| 274 | ,fLorentzFactor(0.0) |
| 275 | ,fTimeLastVdrift(-1) |
| 276 | ,fTimeStruct1(0) |
| 277 | ,fTimeStruct2(0) |
| 278 | ,fVDlo(0) |
| 279 | ,fVDhi(0) |
| 8230f242 |
280 | { |
| 281 | // |
| 282 | // AliTRDdigitizer copy constructor |
| 283 | // |
| 284 | |
| 4d18a639 |
285 | // Do not copy timestructs, just invalidate lastvdrift. |
| 286 | // Next time they are requested, they get recalculated |
| 287 | if (((AliTRDdigitizer &) d).fTimeStruct1) { |
| 288 | delete [] ((AliTRDdigitizer &) d).fTimeStruct1; |
| 289 | ((AliTRDdigitizer &) d).fTimeStruct1 = 0; |
| 290 | } |
| 291 | if (((AliTRDdigitizer &) d).fTimeStruct2) { |
| 292 | delete [] ((AliTRDdigitizer &) d).fTimeStruct2; |
| 293 | ((AliTRDdigitizer &) d).fTimeStruct2 = 0; |
| 294 | } |
| 8230f242 |
295 | |
| 296 | } |
| 297 | |
| f7336fa3 |
298 | //_____________________________________________________________________________ |
| 299 | AliTRDdigitizer::~AliTRDdigitizer() |
| 300 | { |
| 8230f242 |
301 | // |
| 302 | // AliTRDdigitizer destructor |
| 303 | // |
| f7336fa3 |
304 | |
| abaf1f1d |
305 | if (fDigitsManager) { |
| 306 | delete fDigitsManager; |
| 4d18a639 |
307 | fDigitsManager = 0; |
| f7336fa3 |
308 | } |
| 309 | |
| 4d18a639 |
310 | if (fDigitsManager) { |
| 311 | delete fSDigitsManager; |
| 312 | fSDigitsManager = 0; |
| 313 | } |
| f7336fa3 |
314 | |
| abaf1f1d |
315 | if (fSDigitsManagerList) { |
| 47b5729a |
316 | fSDigitsManagerList->Delete(); |
| abaf1f1d |
317 | delete fSDigitsManagerList; |
| 4487dad0 |
318 | fSDigitsManagerList = 0; |
| e23fbb27 |
319 | } |
| 320 | |
| 321 | if (fMasks) { |
| 322 | delete [] fMasks; |
| 4329977a |
323 | fMasks = 0; |
| e23fbb27 |
324 | } |
| 325 | |
| 4d18a639 |
326 | if (fTimeStruct1) { |
| 327 | delete [] fTimeStruct1; |
| 328 | fTimeStruct1 = 0; |
| 3551db50 |
329 | } |
| 330 | |
| 4d18a639 |
331 | if (fTimeStruct2) { |
| 332 | delete [] fTimeStruct2; |
| 333 | fTimeStruct2 = 0; |
| 3551db50 |
334 | } |
| 3becff3c |
335 | |
| f7336fa3 |
336 | } |
| 337 | |
| 8230f242 |
338 | //_____________________________________________________________________________ |
| dd9a6ee3 |
339 | AliTRDdigitizer &AliTRDdigitizer::operator=(const AliTRDdigitizer &d) |
| 340 | { |
| 341 | // |
| 342 | // Assignment operator |
| 343 | // |
| 344 | |
| 345 | if (this != &d) ((AliTRDdigitizer &) d).Copy(*this); |
| 4d18a639 |
346 | |
| dd9a6ee3 |
347 | return *this; |
| 348 | |
| 349 | } |
| 350 | |
| 351 | //_____________________________________________________________________________ |
| e0d47c25 |
352 | void AliTRDdigitizer::Copy(TObject &d) const |
| 8230f242 |
353 | { |
| 354 | // |
| 355 | // Copy function |
| 356 | // |
| 357 | |
| 85a5290f |
358 | ((AliTRDdigitizer &) d).fRunLoader = 0; |
| 4487dad0 |
359 | ((AliTRDdigitizer &) d).fDigitsManager = 0; |
| 85a5290f |
360 | ((AliTRDdigitizer &) d).fSDigitsManager = 0; |
| 361 | ((AliTRDdigitizer &) d).fSDigitsManagerList = 0; |
| 4487dad0 |
362 | ((AliTRDdigitizer &) d).fTRD = 0; |
| 363 | ((AliTRDdigitizer &) d).fGeo = 0; |
| 85a5290f |
364 | ((AliTRDdigitizer &) d).fEvent = 0; |
| 365 | ((AliTRDdigitizer &) d).fMasks = 0; |
| abaf1f1d |
366 | ((AliTRDdigitizer &) d).fCompress = fCompress; |
| abaf1f1d |
367 | ((AliTRDdigitizer &) d).fSDigits = fSDigits; |
| 368 | ((AliTRDdigitizer &) d).fSDigitsScale = fSDigitsScale; |
| 4487dad0 |
369 | ((AliTRDdigitizer &) d).fMergeSignalOnly = fMergeSignalOnly; |
| 0c24ba98 |
370 | |
| 3551db50 |
371 | AliTRDdigitizer& target = (AliTRDdigitizer &) d; |
| 372 | |
| 3becff3c |
373 | // Do not copy timestructs, just invalidate lastvdrift. |
| 374 | // Next time they are requested, they get recalculated |
| 4d18a639 |
375 | if (target.fTimeStruct1) { |
| 95867fd1 |
376 | delete [] target.fTimeStruct1; |
| 4d18a639 |
377 | target.fTimeStruct1 = 0; |
| 3551db50 |
378 | } |
| 4d18a639 |
379 | if (target.fTimeStruct2) { |
| 95867fd1 |
380 | delete [] target.fTimeStruct2; |
| 4d18a639 |
381 | target.fTimeStruct2 = 0; |
| 3becff3c |
382 | } |
| 4d18a639 |
383 | target.fTimeLastVdrift = -1; |
| 3becff3c |
384 | |
| e23fbb27 |
385 | } |
| 386 | |
| e23fbb27 |
387 | //_____________________________________________________________________________ |
| 4d18a639 |
388 | void AliTRDdigitizer::Exec(Option_t *option) |
| e23fbb27 |
389 | { |
| 390 | // |
| 391 | // Executes the merging |
| 392 | // |
| 393 | |
| 394 | Int_t iInput; |
| 395 | |
| 396 | AliTRDdigitsManager *sdigitsManager; |
| 397 | |
| 398 | TString optionString = option; |
| 399 | if (optionString.Contains("deb")) { |
| 9afbd7de |
400 | AliLog::SetClassDebugLevel("AliTRDdigitizer",1); |
| 7925de54 |
401 | AliInfo("Called with debug option"); |
| e23fbb27 |
402 | } |
| 403 | |
| cec4059b |
404 | // The AliRoot file is already connected by the manager |
| 4d18a639 |
405 | AliRunLoader *inrl; |
| 88cb7938 |
406 | |
| 9afbd7de |
407 | if (gAlice) { |
| 7925de54 |
408 | AliDebug(1,"AliRun object found on file."); |
| 9afbd7de |
409 | } |
| 4487dad0 |
410 | else { |
| 88cb7938 |
411 | inrl = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(0)); |
| 412 | inrl->LoadgAlice(); |
| 413 | gAlice = inrl->GetAliRun(); |
| 9afbd7de |
414 | if (!gAlice) { |
| 7925de54 |
415 | AliError("Could not find AliRun object.") |
| 9afbd7de |
416 | return; |
| 417 | } |
| 4487dad0 |
418 | } |
| cec4059b |
419 | |
| e23fbb27 |
420 | Int_t nInput = fManager->GetNinputs(); |
| 4d18a639 |
421 | fMasks = new Int_t[nInput]; |
| e23fbb27 |
422 | for (iInput = 0; iInput < nInput; iInput++) { |
| 423 | fMasks[iInput] = fManager->GetMask(iInput); |
| 424 | } |
| e23fbb27 |
425 | |
| 9afbd7de |
426 | // |
| e23fbb27 |
427 | // Initialization |
| 9afbd7de |
428 | // |
| e23fbb27 |
429 | |
| 95867fd1 |
430 | AliRunLoader *orl = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName()); |
| 431 | |
| 67c67368 |
432 | if (InitDetector()) { |
| 9afbd7de |
433 | |
| 95867fd1 |
434 | AliLoader *ogime = orl->GetLoader("TRDLoader"); |
| 67c67368 |
435 | |
| 95867fd1 |
436 | TTree *tree = 0; |
| 9afbd7de |
437 | if (fSDigits) { |
| 438 | // If we produce SDigits |
| 439 | tree = ogime->TreeS(); |
| 440 | if (!tree) { |
| 441 | ogime->MakeTree("S"); |
| 67c67368 |
442 | tree = ogime->TreeS(); |
| 67c67368 |
443 | } |
| 9afbd7de |
444 | } |
| 445 | else { |
| 446 | // If we produce Digits |
| 447 | tree = ogime->TreeD(); |
| 448 | if (!tree) { |
| 449 | ogime->MakeTree("D"); |
| 450 | tree = ogime->TreeD(); |
| 67c67368 |
451 | } |
| 9afbd7de |
452 | } |
| 453 | |
| 67c67368 |
454 | MakeBranch(tree); |
| 9afbd7de |
455 | |
| 67c67368 |
456 | } |
| 457 | |
| e23fbb27 |
458 | for (iInput = 0; iInput < nInput; iInput++) { |
| 459 | |
| 7925de54 |
460 | AliDebug(1,Form("Add input stream %d",iInput)); |
| e23fbb27 |
461 | |
| 9afbd7de |
462 | // Check if the input tree exists |
| 88cb7938 |
463 | inrl = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(iInput)); |
| 4d18a639 |
464 | AliLoader *gime = inrl->GetLoader("TRDLoader"); |
| 88cb7938 |
465 | |
| 4d18a639 |
466 | TTree *treees = gime->TreeS(); |
| 9afbd7de |
467 | if (treees == 0x0) { |
| 468 | if (gime->LoadSDigits()) { |
| 469 | AliError(Form("Error Occured while loading S. Digits for input %d.",iInput)); |
| 470 | return; |
| 471 | } |
| 4d18a639 |
472 | treees = gime->TreeS(); |
| 9afbd7de |
473 | } |
| 88cb7938 |
474 | |
| 475 | if (treees == 0x0) { |
| 7925de54 |
476 | AliError(Form("Input stream %d does not exist",iInput)); |
| c57e2264 |
477 | return; |
| 478 | } |
| 479 | |
| e23fbb27 |
480 | // Read the s-digits via digits manager |
| 481 | sdigitsManager = new AliTRDdigitsManager(); |
| e23fbb27 |
482 | sdigitsManager->SetSDigits(kTRUE); |
| 88cb7938 |
483 | |
| 4d18a639 |
484 | AliRunLoader *rl = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(iInput)); |
| 485 | AliLoader *gimme = rl->GetLoader("TRDLoader"); |
| 486 | if (!gimme->TreeS()) { |
| 487 | gimme->LoadSDigits(); |
| 488 | } |
| 88cb7938 |
489 | sdigitsManager->ReadDigits(gimme->TreeS()); |
| e23fbb27 |
490 | |
| 491 | // Add the s-digits to the input list |
| 492 | AddSDigitsManager(sdigitsManager); |
| 493 | |
| 494 | } |
| 495 | |
| 496 | // Convert the s-digits to normal digits |
| 7925de54 |
497 | AliDebug(1,"Do the conversion"); |
| e23fbb27 |
498 | SDigits2Digits(); |
| 499 | |
| 500 | // Store the digits |
| 7925de54 |
501 | AliDebug(1,"Write the digits"); |
| e23fbb27 |
502 | fDigitsManager->WriteDigits(); |
| 88cb7938 |
503 | |
| 9afbd7de |
504 | // Write parameters |
| 67c67368 |
505 | orl->CdGAFile(); |
| 67c67368 |
506 | |
| 7925de54 |
507 | AliDebug(1,"Done"); |
| e23fbb27 |
508 | |
| b1113c6b |
509 | DeleteSDigitsManager(); |
| 510 | |
| e23fbb27 |
511 | } |
| 512 | |
| f7336fa3 |
513 | //_____________________________________________________________________________ |
| e23fbb27 |
514 | Bool_t AliTRDdigitizer::Open(const Char_t *file, Int_t nEvent) |
| f7336fa3 |
515 | { |
| 516 | // |
| 517 | // Opens a ROOT-file with TRD-hits and reads in the hit-tree |
| 518 | // |
| f7336fa3 |
519 | // Connect the AliRoot file containing Geometry, Kine, and Hits |
| 3becff3c |
520 | // |
| f540341d |
521 | |
| e191bb57 |
522 | TString evfoldname = AliConfig::GetDefaultEventFolderName(); |
| 9afbd7de |
523 | |
| f540341d |
524 | fRunLoader = AliRunLoader::GetRunLoader(evfoldname); |
| 9afbd7de |
525 | if (!fRunLoader) { |
| 526 | fRunLoader = AliRunLoader::Open(file,evfoldname,"UPDATE"); |
| 527 | } |
| 9afbd7de |
528 | if (!fRunLoader) { |
| 95867fd1 |
529 | AliError(Form("Can not open session for file %s.",file)); |
| 530 | return kFALSE; |
| 531 | } |
| 532 | |
| 533 | if (!fRunLoader->GetAliRun()) { |
| 534 | fRunLoader->LoadgAlice(); |
| 535 | } |
| 536 | gAlice = fRunLoader->GetAliRun(); |
| 537 | |
| 538 | if (gAlice) { |
| 7925de54 |
539 | AliDebug(1,"AliRun object found on file."); |
| 95867fd1 |
540 | } |
| 541 | else { |
| 7925de54 |
542 | AliError("Could not find AliRun object."); |
| 95867fd1 |
543 | return kFALSE; |
| 544 | } |
| 545 | |
| 546 | fEvent = nEvent; |
| 547 | |
| 548 | AliLoader *loader = fRunLoader->GetLoader("TRDLoader"); |
| 549 | if (!loader) { |
| 550 | AliError("Can not get TRD loader from Run Loader"); |
| 551 | return kFALSE; |
| 552 | } |
| 553 | |
| 554 | if (InitDetector()) { |
| 555 | TTree *tree = 0; |
| 556 | if (fSDigits) { |
| 557 | // If we produce SDigits |
| 558 | tree = loader->TreeS(); |
| 559 | if (!tree) { |
| 560 | loader->MakeTree("S"); |
| 561 | tree = loader->TreeS(); |
| 562 | } |
| 563 | } |
| 564 | else { |
| 565 | // If we produce Digits |
| 566 | tree = loader->TreeD(); |
| 567 | if (!tree) { |
| 568 | loader->MakeTree("D"); |
| 569 | tree = loader->TreeD(); |
| 570 | } |
| 571 | } |
| 572 | return MakeBranch(tree); |
| 573 | } |
| 574 | else { |
| 575 | return kFALSE; |
| 576 | } |
| 577 | |
| 578 | } |
| 579 | |
| 580 | //_____________________________________________________________________________ |
| 581 | Bool_t AliTRDdigitizer::Open(AliRunLoader *runLoader, Int_t nEvent) |
| 582 | { |
| 583 | // |
| 584 | // Opens a ROOT-file with TRD-hits and reads in the hit-tree |
| 585 | // |
| 586 | // Connect the AliRoot file containing Geometry, Kine, and Hits |
| 587 | // |
| 588 | |
| 589 | fRunLoader = runLoader; |
| 590 | if (!fRunLoader) { |
| 591 | AliError("RunLoader does not exist"); |
| 592 | return kFALSE; |
| 4d18a639 |
593 | } |
| 88cb7938 |
594 | |
| 9afbd7de |
595 | if (!fRunLoader->GetAliRun()) { |
| 596 | fRunLoader->LoadgAlice(); |
| 597 | } |
| 88cb7938 |
598 | gAlice = fRunLoader->GetAliRun(); |
| 599 | |
| da581aea |
600 | if (gAlice) { |
| 7925de54 |
601 | AliDebug(1,"AliRun object found on file."); |
| da581aea |
602 | } |
| 603 | else { |
| 7925de54 |
604 | AliError("Could not find AliRun object."); |
| da581aea |
605 | return kFALSE; |
| 606 | } |
| f7336fa3 |
607 | |
| 608 | fEvent = nEvent; |
| 609 | |
| 4d18a639 |
610 | AliLoader *loader = fRunLoader->GetLoader("TRDLoader"); |
| 9afbd7de |
611 | if (!loader) { |
| 612 | AliError("Can not get TRD loader from Run Loader"); |
| 613 | return kFALSE; |
| 614 | } |
| 88cb7938 |
615 | |
| abaf1f1d |
616 | if (InitDetector()) { |
| 4d18a639 |
617 | TTree *tree = 0; |
| 9afbd7de |
618 | if (fSDigits) { |
| 619 | // If we produce SDigits |
| 620 | tree = loader->TreeS(); |
| 621 | if (!tree) { |
| 622 | loader->MakeTree("S"); |
| 623 | tree = loader->TreeS(); |
| 4d18a639 |
624 | } |
| 9afbd7de |
625 | } |
| 626 | else { |
| 627 | // If we produce Digits |
| 95867fd1 |
628 | tree = loader->TreeD(); |
| 9afbd7de |
629 | if (!tree) { |
| 630 | loader->MakeTree("D"); |
| 631 | tree = loader->TreeD(); |
| 4d18a639 |
632 | } |
| 9afbd7de |
633 | } |
| 88cb7938 |
634 | return MakeBranch(tree); |
| abaf1f1d |
635 | } |
| 636 | else { |
| 637 | return kFALSE; |
| 638 | } |
| 793ff80c |
639 | |
| 640 | } |
| 641 | |
| 642 | //_____________________________________________________________________________ |
| 643 | Bool_t AliTRDdigitizer::InitDetector() |
| 644 | { |
| 645 | // |
| 646 | // Sets the pointer to the TRD detector and the geometry |
| 647 | // |
| 648 | |
| dd9a6ee3 |
649 | // Get the pointer to the detector class and check for version 1 |
| 4487dad0 |
650 | fTRD = (AliTRD *) gAlice->GetDetector("TRD"); |
| cec4059b |
651 | if (!fTRD) { |
| 7925de54 |
652 | AliFatal("No TRD module found"); |
| cec4059b |
653 | exit(1); |
| 654 | } |
| dd9a6ee3 |
655 | if (fTRD->IsVersion() != 1) { |
| 7925de54 |
656 | AliFatal("TRD must be version 1 (slow simulator)"); |
| dd9a6ee3 |
657 | exit(1); |
| 658 | } |
| 659 | |
| 660 | // Get the geometry |
| 661 | fGeo = fTRD->GetGeometry(); |
| 7925de54 |
662 | AliDebug(1,Form("Geometry version %d",fGeo->IsVersion())); |
| dd9a6ee3 |
663 | |
| abaf1f1d |
664 | // Create a digits manager |
| 47b5729a |
665 | delete fDigitsManager; |
| abaf1f1d |
666 | fDigitsManager = new AliTRDdigitsManager(); |
| 667 | fDigitsManager->SetSDigits(fSDigits); |
| 668 | fDigitsManager->CreateArrays(); |
| 669 | fDigitsManager->SetEvent(fEvent); |
| abaf1f1d |
670 | |
| 671 | // The list for the input s-digits manager to be merged |
| 47b5729a |
672 | if (fSDigitsManagerList) { |
| 673 | fSDigitsManagerList->Delete(); |
| 3becff3c |
674 | } |
| 675 | else { |
| 47b5729a |
676 | fSDigitsManagerList = new TList(); |
| 677 | } |
| abaf1f1d |
678 | |
| 4487dad0 |
679 | return kTRUE; |
| f7336fa3 |
680 | |
| 681 | } |
| 682 | |
| 6244debe |
683 | //_____________________________________________________________________________ |
| 95867fd1 |
684 | Bool_t AliTRDdigitizer::MakeBranch(TTree *tree) const |
| 6244debe |
685 | { |
| abaf1f1d |
686 | // |
| 687 | // Create the branches for the digits array |
| 6244debe |
688 | // |
| 689 | |
| 88cb7938 |
690 | return fDigitsManager->MakeBranch(tree); |
| 6244debe |
691 | |
| 692 | } |
| 693 | |
| f7336fa3 |
694 | //_____________________________________________________________________________ |
| 695 | Bool_t AliTRDdigitizer::MakeDigits() |
| 696 | { |
| 697 | // |
| 872a7aba |
698 | // Creates digits. |
| f7336fa3 |
699 | // |
| 700 | |
| f7336fa3 |
701 | /////////////////////////////////////////////////////////////// |
| 702 | // Parameter |
| 703 | /////////////////////////////////////////////////////////////// |
| 704 | |
| 705 | // Converts number of electrons to fC |
| 4d18a639 |
706 | const Double_t kEl2fC = 1.602e-19 * 1.0e15; |
| f7336fa3 |
707 | |
| 708 | /////////////////////////////////////////////////////////////// |
| 709 | |
| 793ff80c |
710 | // Number of pads included in the pad response |
| a5cadd36 |
711 | const Int_t kNpad = 3; |
| 793ff80c |
712 | |
| 713 | // Number of track dictionary arrays |
| a5cadd36 |
714 | const Int_t kNDict = AliTRDdigitsManager::kNDict; |
| 793ff80c |
715 | |
| 4329977a |
716 | // Width of the amplification region |
| 717 | const Float_t kAmWidth = AliTRDgeometry::AmThick(); |
| 3becff3c |
718 | // Width of the drift region |
| ccb4315c |
719 | const Float_t kDrWidth = AliTRDgeometry::DrThick(); |
| 4329977a |
720 | // Drift + amplification region |
| 721 | const Float_t kDrMin = - 0.5 * kAmWidth; |
| 722 | const Float_t kDrMax = kDrWidth + 0.5 * kAmWidth; |
| 3551db50 |
723 | |
| 4d18a639 |
724 | Int_t iRow; |
| 725 | Int_t iCol; |
| 726 | Int_t iTime; |
| 727 | Int_t iPad; |
| a5cadd36 |
728 | Int_t iDict = 0; |
| 729 | Int_t nBytes = 0; |
| f7336fa3 |
730 | |
| a5cadd36 |
731 | Int_t totalSizeDigits = 0; |
| 732 | Int_t totalSizeDict0 = 0; |
| 733 | Int_t totalSizeDict1 = 0; |
| 734 | Int_t totalSizeDict2 = 0; |
| f7336fa3 |
735 | |
| a5cadd36 |
736 | Int_t timeBinTRFend = 1; |
| 872a7aba |
737 | |
| a5cadd36 |
738 | Double_t pos[3]; |
| 4329977a |
739 | Double_t loc[3]; |
| a5cadd36 |
740 | Double_t padSignal[kNpad]; |
| 741 | Double_t signalOld[kNpad]; |
| 872a7aba |
742 | |
| a5cadd36 |
743 | AliTRDdataArrayF *signals = 0; |
| 744 | AliTRDdataArrayI *digits = 0; |
| 8230f242 |
745 | AliTRDdataArrayI *dictionary[kNDict]; |
| da581aea |
746 | |
| a5cadd36 |
747 | AliTRDpadPlane *padPlane = 0; |
| 748 | |
| 4329977a |
749 | AliTRDCalROC *calVdriftROC = 0; |
| 750 | Float_t calVdriftDetValue = 0.0; |
| 751 | AliTRDCalROC *calT0ROC = 0; |
| 752 | Float_t calT0DetValue = 0.0; |
| 753 | AliTRDCalROC *calGainFactorROC = 0; |
| 754 | Float_t calGainFactorDetValue = 0.0; |
| 755 | |
| 9afbd7de |
756 | if (!gGeoManager) { |
| 757 | AliFatal("No geometry manager!"); |
| 758 | } |
| 7754cd1f |
759 | |
| 4329977a |
760 | if (!fGeo) { |
| 761 | AliError("No geometry defined"); |
| 762 | return kFALSE; |
| 763 | } |
| 764 | fGeo->ReadGeoMatrices(); |
| 765 | |
| 9afbd7de |
766 | AliTRDSimParam *simParam = AliTRDSimParam::Instance(); |
| 3becff3c |
767 | if (!simParam) { |
| 4329977a |
768 | AliFatal("Could not get simulation parameters"); |
| 3551db50 |
769 | return kFALSE; |
| 770 | } |
| 771 | |
| 9afbd7de |
772 | AliTRDCommonParam *commonParam = AliTRDCommonParam::Instance(); |
| 3becff3c |
773 | if (!commonParam) { |
| 4329977a |
774 | AliFatal("Could not get common parameterss"); |
| 3551db50 |
775 | return kFALSE; |
| 776 | } |
| 793ff80c |
777 | |
| 4329977a |
778 | AliTRDcalibDB *calibration = AliTRDcalibDB::Instance(); |
| 3becff3c |
779 | if (!calibration) { |
| 4329977a |
780 | AliFatal("Could not get calibration object"); |
| 3551db50 |
781 | return kFALSE; |
| 782 | } |
| 783 | |
| 4329977a |
784 | AliDebug(1,"Start creating digits"); |
| 785 | |
| 786 | // Create a container for the amplitudes |
| 787 | AliTRDsegmentArray *signalsArray = new AliTRDsegmentArray("AliTRDdataArrayF" |
| 788 | ,AliTRDgeometry::Ndet()); |
| 872a7aba |
789 | |
| 4d18a639 |
790 | AliLoader *gimme = fRunLoader->GetLoader("TRDLoader"); |
| 9afbd7de |
791 | if (!gimme->TreeH()) { |
| 792 | gimme->LoadHits(); |
| 793 | } |
| 4d18a639 |
794 | TTree *hitTree = gimme->TreeH(); |
| 3becff3c |
795 | if (hitTree == 0x0) { |
| 9afbd7de |
796 | AliError("Can not get TreeH"); |
| 797 | return kFALSE; |
| 3becff3c |
798 | } |
| 88cb7938 |
799 | fTRD->SetTreeAddress(); |
| 4329977a |
800 | |
| 793ff80c |
801 | // Get the number of entries in the hit tree |
| 802 | // (Number of primary particles creating a hit somewhere) |
| 3becff3c |
803 | Int_t nTrack = (Int_t) hitTree->GetEntries(); |
| 7925de54 |
804 | AliDebug(1,Form("Found %d primary particles",nTrack)); |
| 805 | AliDebug(1,Form("Sampling = %.0fMHz" ,commonParam->GetSamplingFrequency())); |
| 806 | AliDebug(1,Form("Gain = %d" ,((Int_t) simParam->GetGasGain()))); |
| 807 | AliDebug(1,Form("Noise = %d" ,((Int_t) simParam->GetNoise()))); |
| 9afbd7de |
808 | if (simParam->TimeStructOn()) { |
| 7925de54 |
809 | AliDebug(1,"Time Structure of drift cells implemented."); |
| 9afbd7de |
810 | } |
| 811 | else { |
| 7925de54 |
812 | AliDebug(1,"Constant drift velocity in drift cells."); |
| a328fff9 |
813 | } |
| 4329977a |
814 | if (simParam->TRFOn()) { |
| 815 | timeBinTRFend = ((Int_t) (simParam->GetTRFhi() |
| 816 | * commonParam->GetSamplingFrequency())) - 1; |
| 817 | AliDebug(1,Form("Sample the TRF up to bin %d",timeBinTRFend)); |
| 818 | } |
| 819 | |
| 820 | // Get the detector wise calibration objects |
| 821 | const AliTRDCalDet *calVdriftDet = calibration->GetVdriftDet(); |
| 822 | const AliTRDCalDet *calT0Det = calibration->GetT0Det(); |
| 823 | const AliTRDCalDet *calGainFactorDet = calibration->GetGainFactorDet(); |
| 824 | |
| 9afbd7de |
825 | Int_t detectorOld = -1; |
| 826 | Int_t countHits = 0; |
| 827 | |
| 3becff3c |
828 | Int_t nTimeTotal = calibration->GetNumberOfTimeBins(); |
| b43a3e17 |
829 | Float_t samplingRate = commonParam->GetSamplingFrequency(); |
| 4329977a |
830 | Float_t elAttachProp = simParam->GetElAttachProp() / 100.0; |
| a328fff9 |
831 | |
| 793ff80c |
832 | // Loop through all entries in the tree |
| 833 | for (Int_t iTrack = 0; iTrack < nTrack; iTrack++) { |
| 834 | |
| 3becff3c |
835 | gAlice->ResetHits(); |
| 836 | nBytes += hitTree->GetEvent(iTrack); |
| 793ff80c |
837 | |
| e23fbb27 |
838 | // Loop through the TRD hits |
| 839 | Int_t iHit = 0; |
| 840 | AliTRDhit *hit = (AliTRDhit *) fTRD->FirstHit(-1); |
| 841 | while (hit) { |
| 842 | |
| 793ff80c |
843 | countHits++; |
| e23fbb27 |
844 | iHit++; |
| 845 | |
| f881dc35 |
846 | Float_t q = hit->GetCharge(); |
| b08ed1cf |
847 | // Don't analyze test hits |
| f881dc35 |
848 | if (((Int_t) q) == 0) { |
| 849 | hit = (AliTRDhit *) fTRD->NextHit(); |
| 850 | continue; |
| 851 | } |
| e153aaf6 |
852 | |
| f881dc35 |
853 | pos[0] = hit->X(); |
| 854 | pos[1] = hit->Y(); |
| 855 | pos[2] = hit->Z(); |
| 856 | Int_t track = hit->Track(); |
| 857 | Int_t detector = hit->GetDetector(); |
| 2fa01832 |
858 | Float_t hittime = hit->GetTime(); |
| f881dc35 |
859 | Int_t plane = fGeo->GetPlane(detector); |
| 860 | Int_t chamber = fGeo->GetChamber(detector); |
| f881dc35 |
861 | padPlane = commonParam->GetPadPlane(plane,chamber); |
| 4329977a |
862 | Float_t row0 = padPlane->GetRow0ROC(); |
| f881dc35 |
863 | Int_t nRowMax = padPlane->GetNrows(); |
| 864 | Int_t nColMax = padPlane->GetNcols(); |
| 865 | Int_t inDrift = 1; |
| 866 | |
| 867 | // Find the current volume with the geo manager |
| 4329977a |
868 | gGeoManager->SetCurrentPoint(pos); |
| 869 | gGeoManager->FindNode(); |
| 870 | if (strstr(gGeoManager->GetPath(),"/UK")) { |
| 871 | inDrift = 0; |
| 872 | } |
| f881dc35 |
873 | |
| 874 | if (detector != detectorOld) { |
| 875 | |
| 876 | // Compress the old one if enabled |
| 877 | if ((fCompress) && (detectorOld > -1)) { |
| 878 | signals->Compress(1,0); |
| 879 | for (iDict = 0; iDict < kNDict; iDict++) { |
| 880 | dictionary[iDict]->Compress(1,0); |
| 881 | } |
| 882 | } |
| 883 | // Get the new container |
| 884 | signals = (AliTRDdataArrayF *) signalsArray->At(detector); |
| 885 | if (signals->GetNtime() == 0) { |
| 886 | // Allocate a new one if not yet existing |
| 887 | signals->Allocate(nRowMax,nColMax,nTimeTotal); |
| 888 | } |
| 889 | else { |
| 890 | // Expand an existing one |
| 891 | if (fCompress) { |
| 892 | signals->Expand(); |
| 793ff80c |
893 | } |
| f881dc35 |
894 | } |
| 895 | // The same for the dictionary |
| 896 | for (iDict = 0; iDict < kNDict; iDict++) { |
| 897 | dictionary[iDict] = fDigitsManager->GetDictionary(detector,iDict); |
| 898 | if (dictionary[iDict]->GetNtime() == 0) { |
| 899 | dictionary[iDict]->Allocate(nRowMax,nColMax,nTimeTotal); |
| 793ff80c |
900 | } |
| 901 | else { |
| f881dc35 |
902 | if (fCompress) dictionary[iDict]->Expand(); |
| 903 | } |
| 904 | } |
| 4329977a |
905 | |
| 906 | // Get the calibration objects |
| 907 | calVdriftROC = calibration->GetVdriftROC(detector); |
| 908 | calVdriftDetValue = calVdriftDet->GetValue(detector); |
| 909 | calT0ROC = calibration->GetT0ROC(detector); |
| 910 | calT0DetValue = calT0Det->GetValue(detector); |
| 911 | |
| f881dc35 |
912 | detectorOld = detector; |
| 4329977a |
913 | |
| f881dc35 |
914 | } |
| 793ff80c |
915 | |
| 4329977a |
916 | // Go to the local coordinate system: |
| 917 | // loc[0] - col direction in amplification or driftvolume |
| 918 | // loc[1] - row direction in amplification or driftvolume |
| 919 | // loc[2] - time direction in amplification or driftvolume |
| 920 | gGeoManager->MasterToLocal(pos,loc); |
| f881dc35 |
921 | if (inDrift) { |
| 4329977a |
922 | // Relative to middle of amplification region |
| 923 | loc[2] = loc[2] - kDrWidth/2.0 - kAmWidth/2.0; |
| f881dc35 |
924 | } |
| 4329977a |
925 | |
| 926 | // The driftlength [cm] (w/o diffusion yet !). |
| 927 | // It is negative if the hit is between pad plane and anode wires. |
| 928 | Double_t driftlength = -1.0 * loc[2]; |
| 929 | |
| 930 | // Stupid patch to take care of TR photons that are absorbed |
| 931 | // outside the chamber volume. A real fix would actually need |
| 932 | // a more clever implementation of the TR hit generation |
| 933 | if (q < 0.0) { |
| 934 | if ((loc[1] < padPlane->GetRowEndROC()) || |
| 935 | (loc[1] > padPlane->GetRow0ROC())) { |
| 936 | hit = (AliTRDhit *) fTRD->NextHit(); |
| 937 | continue; |
| 938 | } |
| 939 | if ((driftlength < kDrMin) || |
| 940 | (driftlength > kDrMax)) { |
| 941 | hit = (AliTRDhit *) fTRD->NextHit(); |
| 942 | continue; |
| 943 | } |
| 729161c5 |
944 | } |
| 945 | |
| 4329977a |
946 | // Get row and col of unsmeared electron to retrieve drift velocity |
| 947 | // The pad row (z-direction) |
| 948 | Int_t rowE = padPlane->GetPadRowNumberROC(loc[1]); |
| 949 | if (rowE < 0) { |
| 950 | hit = (AliTRDhit *) fTRD->NextHit(); |
| 951 | continue; |
| 952 | } |
| 953 | Double_t rowOffset = padPlane->GetPadRowOffsetROC(rowE,loc[1]); |
| 954 | |
| 955 | // The pad column (rphi-direction) |
| 956 | Double_t offsetTilt = padPlane->GetTiltOffset(rowOffset); |
| 957 | Int_t colE = padPlane->GetPadColNumber(loc[0]+offsetTilt); |
| 958 | if (colE < 0) { |
| 959 | hit = (AliTRDhit *) fTRD->NextHit(); |
| 960 | continue; |
| 961 | } |
| 962 | Double_t colOffset = padPlane->GetPadColOffset(colE,loc[0]+offsetTilt); |
| 963 | |
| 964 | Float_t driftvelocity = calVdriftDetValue * calVdriftROC->GetValue(colE,rowE); |
| 965 | |
| 966 | // Normalized drift length |
| 967 | Double_t absdriftlength = TMath::Abs(driftlength); |
| 968 | if (commonParam->ExBOn()) { |
| 969 | absdriftlength /= TMath::Sqrt(GetLorentzFactor(driftvelocity)); |
| 970 | } |
| f881dc35 |
971 | |
| 972 | // Loop over all electrons of this hit |
| 973 | // TR photons produce hits with negative charge |
| 974 | Int_t nEl = ((Int_t) TMath::Abs(q)); |
| 975 | for (Int_t iEl = 0; iEl < nEl; iEl++) { |
| 976 | |
| 4329977a |
977 | // Now the real local coordinate system of the ROC |
| 978 | // column direction: locC |
| 979 | // row direction: locR |
| 980 | // time direction: locT |
| 981 | // locR and locC are identical to the coordinates of the corresponding |
| 982 | // volumina of the drift or amplification region. |
| 983 | // locT is defined relative to the wire plane (i.e. middle of amplification |
| 984 | // region), meaming locT = 0, and is negative for hits coming from the |
| 985 | // drift region. |
| 986 | Double_t locC = loc[0]; |
| 987 | Double_t locR = loc[1]; |
| 988 | Double_t locT = loc[2]; |
| 3551db50 |
989 | |
| f881dc35 |
990 | // Electron attachment |
| 991 | if (simParam->ElAttachOn()) { |
| 4329977a |
992 | if (gRandom->Rndm() < (absdriftlength * elAttachProp)) { |
| 993 | continue; |
| 994 | } |
| f881dc35 |
995 | } |
| 3551db50 |
996 | |
| f881dc35 |
997 | // Apply the diffusion smearing |
| 998 | if (simParam->DiffusionOn()) { |
| 4329977a |
999 | if (!(Diffusion(driftvelocity,absdriftlength,locR,locC,locT))) { |
| 1000 | continue; |
| 1001 | } |
| f881dc35 |
1002 | } |
| 3551db50 |
1003 | |
| f881dc35 |
1004 | // Apply E x B effects (depends on drift direction) |
| 1005 | if (commonParam->ExBOn()) { |
| 4329977a |
1006 | if (!(ExB(driftvelocity,driftlength,locC))) { |
| 1007 | continue; |
| 1008 | } |
| f881dc35 |
1009 | } |
| 3551db50 |
1010 | |
| f881dc35 |
1011 | // The electron position after diffusion and ExB in pad coordinates. |
| 1012 | // The pad row (z-direction) |
| 4329977a |
1013 | rowE = padPlane->GetPadRowNumberROC(locR); |
| f881dc35 |
1014 | if (rowE < 0) continue; |
| 4329977a |
1015 | rowOffset = padPlane->GetPadRowOffsetROC(rowE,locR); |
| f881dc35 |
1016 | |
| 1017 | // The pad column (rphi-direction) |
| 1018 | offsetTilt = padPlane->GetTiltOffset(rowOffset); |
| 4329977a |
1019 | colE = padPlane->GetPadColNumber(locC+offsetTilt); |
| f881dc35 |
1020 | if (colE < 0) continue; |
| 4329977a |
1021 | colOffset = padPlane->GetPadColOffset(colE,locC+offsetTilt); |
| 3551db50 |
1022 | |
| f881dc35 |
1023 | // Also re-retrieve drift velocity because col and row may have changed |
| 4329977a |
1024 | driftvelocity = calVdriftDetValue * calVdriftROC->GetValue(colE,rowE); |
| 1025 | Float_t t0 = calT0DetValue + calT0ROC->GetValue(colE,rowE); |
| d4c6453d |
1026 | |
| 4329977a |
1027 | // Convert the position to drift time [mus], using either constant drift velocity or |
| f881dc35 |
1028 | // time structure of drift cells (non-isochronity, GARFIELD calculation). |
| 4329977a |
1029 | // Also add absolute time of hits to take pile-up events into account properly |
| f881dc35 |
1030 | Double_t drifttime; |
| 1031 | if (simParam->TimeStructOn()) { |
| 4329977a |
1032 | // Get z-position with respect to anode wire |
| 1033 | Double_t zz = row0 - locR + simParam->GetAnodeWireOffset(); |
| 1034 | zz -= ((Int_t)(2 * zz)) / 2.0; |
| 1035 | if (zz > 0.25) { |
| 1036 | zz = 0.5 - zz; |
| e23fbb27 |
1037 | } |
| f881dc35 |
1038 | // Use drift time map (GARFIELD) |
| 4329977a |
1039 | drifttime = TimeStruct(driftvelocity,0.5*kAmWidth-1.0*locT,zz) |
| 2fa01832 |
1040 | + hittime; |
| f881dc35 |
1041 | } |
| 1042 | else { |
| 1043 | // Use constant drift velocity |
| 4329977a |
1044 | drifttime = -1.0 * locT / driftvelocity |
| 2fa01832 |
1045 | + hittime; |
| f881dc35 |
1046 | } |
| ccb4315c |
1047 | |
| f881dc35 |
1048 | // Apply the gas gain including fluctuations |
| 1049 | Double_t ggRndm = 0.0; |
| 1050 | do { |
| 1051 | ggRndm = gRandom->Rndm(); |
| 1052 | } while (ggRndm <= 0); |
| 1053 | Int_t signal = (Int_t) (-(simParam->GetGasGain()) * TMath::Log(ggRndm)); |
| 1054 | |
| 1055 | // Apply the pad response |
| 1056 | if (simParam->PRFOn()) { |
| 1057 | // The distance of the electron to the center of the pad |
| 1058 | // in units of pad width |
| 1059 | Double_t dist = (colOffset - 0.5*padPlane->GetColSize(colE)) |
| 1060 | / padPlane->GetColSize(colE); |
| 4329977a |
1061 | // This is still the fixed parametrization, i.e. not dependent on |
| 1062 | // calibration values !!!! |
| f881dc35 |
1063 | if (!(calibration->PadResponse(signal,dist,plane,padSignal))) continue; |
| 1064 | } |
| 1065 | else { |
| 1066 | padSignal[0] = 0.0; |
| 1067 | padSignal[1] = signal; |
| 1068 | padSignal[2] = 0.0; |
| 1069 | } |
| e23fbb27 |
1070 | |
| 4329977a |
1071 | // The time bin (always positive), with t0 distortion |
| f881dc35 |
1072 | Double_t timeBinIdeal = drifttime * samplingRate + t0; |
| 1073 | // Protection |
| 1074 | if (TMath::Abs(timeBinIdeal) > 2*nTimeTotal) { |
| 1075 | timeBinIdeal = 2 * nTimeTotal; |
| 1076 | } |
| 1077 | Int_t timeBinTruncated = (Int_t) timeBinIdeal; |
| 1078 | // The distance of the position to the middle of the timebin |
| 1079 | Double_t timeOffset = ((Float_t) timeBinTruncated |
| 1080 | + 0.5 - timeBinIdeal) / samplingRate; |
| 6a739e92 |
1081 | |
| f881dc35 |
1082 | // Sample the time response inside the drift region |
| 1083 | // + additional time bins before and after. |
| 1084 | // The sampling is done always in the middle of the time bin |
| 4329977a |
1085 | for (Int_t iTimeBin = TMath::Max(timeBinTruncated,0) |
| 1086 | ;iTimeBin < TMath::Min(timeBinTruncated+timeBinTRFend,nTimeTotal) |
| 1087 | ;iTimeBin++) { |
| f881dc35 |
1088 | |
| 1089 | // Apply the time response |
| 1090 | Double_t timeResponse = 1.0; |
| 1091 | Double_t crossTalk = 0.0; |
| 1092 | Double_t time = (iTimeBin - timeBinTruncated) / samplingRate + timeOffset; |
| 1093 | if (simParam->TRFOn()) { |
| 1094 | timeResponse = simParam->TimeResponse(time); |
| 1095 | } |
| 1096 | if (simParam->CTOn()) { |
| 1097 | crossTalk = simParam->CrossTalk(time); |
| 1098 | } |
| e23fbb27 |
1099 | |
| f881dc35 |
1100 | signalOld[0] = 0.0; |
| 1101 | signalOld[1] = 0.0; |
| 1102 | signalOld[2] = 0.0; |
| f7336fa3 |
1103 | |
| f881dc35 |
1104 | for (iPad = 0; iPad < kNpad; iPad++) { |
| e23fbb27 |
1105 | |
| f881dc35 |
1106 | Int_t colPos = colE + iPad - 1; |
| 1107 | if (colPos < 0) continue; |
| 1108 | if (colPos >= nColMax) break; |
| e23fbb27 |
1109 | |
| f881dc35 |
1110 | // Add the signals |
| 1111 | Int_t iCurrentTimeBin = iTimeBin; |
| 1112 | signalOld[iPad] = signals->GetDataUnchecked(rowE,colPos,iCurrentTimeBin); |
| 1113 | if (colPos != colE) { |
| 1114 | signalOld[iPad] += padSignal[iPad] * (timeResponse + crossTalk); |
| 1115 | } |
| 1116 | else { |
| 1117 | signalOld[iPad] += padSignal[iPad] * timeResponse; |
| 1118 | } |
| 1119 | signals->SetDataUnchecked(rowE,colPos,iCurrentTimeBin,signalOld[iPad]); |
| 1120 | |
| 1121 | // Store the track index in the dictionary |
| 1122 | // Note: We store index+1 in order to allow the array to be compressed |
| 1123 | if (signalOld[iPad] > 0) { |
| 1124 | for (iDict = 0; iDict < kNDict; iDict++) { |
| 1125 | Int_t oldTrack = dictionary[iDict]->GetDataUnchecked(rowE |
| 1126 | ,colPos |
| 1127 | ,iCurrentTimeBin); |
| 1128 | if (oldTrack == track+1) break; |
| 1129 | if (oldTrack == 0) { |
| 1130 | dictionary[iDict]->SetDataUnchecked(rowE,colPos,iCurrentTimeBin,track+1); |
| 1131 | break; |
| 71d9fa7b |
1132 | } |
| 1133 | } |
| f881dc35 |
1134 | } |
| 872a7aba |
1135 | |
| f881dc35 |
1136 | } // Loop: pads |
| f7336fa3 |
1137 | |
| f881dc35 |
1138 | } // Loop: time bins |
| f7336fa3 |
1139 | |
| f881dc35 |
1140 | } // Loop: electrons of a single hit |
| f7336fa3 |
1141 | |
| e23fbb27 |
1142 | hit = (AliTRDhit *) fTRD->NextHit(); |
| f7336fa3 |
1143 | |
| e23fbb27 |
1144 | } // Loop: hits of one primary track |
| 1145 | |
| 1146 | } // Loop: primary tracks |
| 1147 | |
| 7925de54 |
1148 | AliDebug(1,Form("Finished analyzing %d hits",countHits)); |
| 793ff80c |
1149 | |
| 4329977a |
1150 | //____________________________________________________________________ |
| 1151 | // |
| 1152 | // Create (s)digits |
| 1153 | //____________________________________________________________________ |
| 1154 | // |
| 1155 | |
| 0c24ba98 |
1156 | // The coupling factor |
| 3551db50 |
1157 | Double_t coupling = simParam->GetPadCoupling() |
| 9afbd7de |
1158 | * simParam->GetTimeCoupling(); |
| 0c24ba98 |
1159 | |
| 1160 | // The conversion factor |
| 9afbd7de |
1161 | Double_t convert = kEl2fC |
| 1162 | * simParam->GetChipGain(); |
| 6244debe |
1163 | |
| 793ff80c |
1164 | // Loop through all chambers to finalize the digits |
| 0c24ba98 |
1165 | Int_t iDetBeg = 0; |
| 1166 | Int_t iDetEnd = AliTRDgeometry::Ndet(); |
| 0c24ba98 |
1167 | for (Int_t iDet = iDetBeg; iDet < iDetEnd; iDet++) { |
| 793ff80c |
1168 | |
| 4d18a639 |
1169 | Int_t plane = fGeo->GetPlane(iDet); |
| 1170 | Int_t sector = fGeo->GetSector(iDet); |
| 1171 | Int_t chamber = fGeo->GetChamber(iDet); |
| 1172 | Int_t nRowMax = commonParam->GetRowMax(plane,chamber,sector); |
| 1173 | Int_t nColMax = commonParam->GetColMax(plane); |
| 793ff80c |
1174 | |
| 4d18a639 |
1175 | Double_t *inADC = new Double_t[nTimeTotal]; |
| 1176 | Double_t *outADC = new Double_t[nTimeTotal]; |
| e23fbb27 |
1177 | |
| 793ff80c |
1178 | // Add a container for the digits of this detector |
| abaf1f1d |
1179 | digits = fDigitsManager->GetDigits(iDet); |
| 793ff80c |
1180 | // Allocate memory space for the digits buffer |
| 0c24ba98 |
1181 | if (digits->GetNtime() == 0) { |
| 1182 | digits->Allocate(nRowMax,nColMax,nTimeTotal); |
| 1183 | } |
| 0c24ba98 |
1184 | |
| 793ff80c |
1185 | // Get the signal container |
| 1186 | signals = (AliTRDdataArrayF *) signalsArray->At(iDet); |
| 1187 | if (signals->GetNtime() == 0) { |
| 1188 | // Create missing containers |
| 872a7aba |
1189 | signals->Allocate(nRowMax,nColMax,nTimeTotal); |
| 793ff80c |
1190 | } |
| 1191 | else { |
| 1192 | // Expand the container if neccessary |
| 1193 | if (fCompress) signals->Expand(); |
| 1194 | } |
| 1195 | // Create the missing dictionary containers |
| 3becff3c |
1196 | for (iDict = 0; iDict < kNDict; iDict++) { |
| 1197 | dictionary[iDict] = fDigitsManager->GetDictionary(iDet,iDict); |
| 1198 | if (dictionary[iDict]->GetNtime() == 0) { |
| 1199 | dictionary[iDict]->Allocate(nRowMax,nColMax,nTimeTotal); |
| 0c24ba98 |
1200 | } |
| 793ff80c |
1201 | } |
| f7336fa3 |
1202 | |
| 793ff80c |
1203 | Int_t nDigits = 0; |
| 1204 | |
| 9afbd7de |
1205 | // Don't create noise in detectors that are switched off / not installed, etc. |
| 6bf5f0ce |
1206 | if (( calibration->IsChamberInstalled(iDet)) && |
| 1207 | (!calibration->IsChamberMasked(iDet)) && |
| 1208 | ( fGeo->GetSMstatus(sector))) { |
| 6244debe |
1209 | |
| 4329977a |
1210 | // Get the calibration objects |
| 1211 | calGainFactorROC = calibration->GetGainFactorROC(iDet); |
| 1212 | calGainFactorDetValue = calGainFactorDet->GetValue(iDet); |
| 1213 | |
| 6244debe |
1214 | // Create the digits for this chamber |
| 872a7aba |
1215 | for (iRow = 0; iRow < nRowMax; iRow++ ) { |
| 1216 | for (iCol = 0; iCol < nColMax; iCol++ ) { |
| 6244debe |
1217 | |
| 6bf5f0ce |
1218 | // Check whether pad is masked |
| 1219 | // Bridged pads are not considered yet!!! |
| 4329977a |
1220 | if (calibration->IsPadMasked(iDet,iCol,iRow)) { |
| 1221 | continue; |
| 1222 | } |
| 9afbd7de |
1223 | |
| e23fbb27 |
1224 | // Create summable digits |
| 1225 | if (fSDigits) { |
| 6244debe |
1226 | |
| e23fbb27 |
1227 | for (iTime = 0; iTime < nTimeTotal; iTime++) { |
| 872a7aba |
1228 | Float_t signalAmp = signals->GetDataUnchecked(iRow,iCol,iTime); |
| abaf1f1d |
1229 | signalAmp *= fSDigitsScale; |
| e23fbb27 |
1230 | signalAmp = TMath::Min(signalAmp,(Float_t) 1.0e9); |
| abaf1f1d |
1231 | Int_t adc = (Int_t) signalAmp; |
| 4487dad0 |
1232 | if (adc > 0) nDigits++; |
| 872a7aba |
1233 | digits->SetDataUnchecked(iRow,iCol,iTime,adc); |
| c1e4b257 |
1234 | } |
| 6244debe |
1235 | |
| e23fbb27 |
1236 | } |
| 1237 | // Create normal digits |
| 1238 | else { |
| 6244debe |
1239 | |
| 4329977a |
1240 | Float_t padgain = calGainFactorDetValue |
| 1241 | * calGainFactorROC->GetValue(iCol,iRow); |
| 1242 | if (padgain <= 0) { |
| 1243 | AliError(Form("Not a valid gain %f, %d %d %d",padgain,iDet,iCol,iRow)); |
| 1244 | } |
| 1245 | |
| e23fbb27 |
1246 | for (iTime = 0; iTime < nTimeTotal; iTime++) { |
| 4d18a639 |
1247 | |
| e23fbb27 |
1248 | Float_t signalAmp = signals->GetDataUnchecked(iRow,iCol,iTime); |
| 11dc3a9e |
1249 | |
| 0c24ba98 |
1250 | // Pad and time coupling |
| 1251 | signalAmp *= coupling; |
| 4329977a |
1252 | // Gain factors |
| 7eea788e |
1253 | signalAmp *= padgain; |
| 11dc3a9e |
1254 | |
| 7e582e9f |
1255 | // Add the noise, starting from minus ADC baseline in electrons |
| 4329977a |
1256 | Double_t baselineEl = simParam->GetADCbaseline() |
| 1257 | * (simParam->GetADCinRange() / simParam->GetADCoutRange()) |
| 1258 | / convert; |
| 3551db50 |
1259 | signalAmp = TMath::Max((Double_t) gRandom->Gaus(signalAmp,simParam->GetNoise()) |
| 7e582e9f |
1260 | ,-baselineEl); |
| 6244debe |
1261 | // Convert to mV |
| 1262 | signalAmp *= convert; |
| 7e582e9f |
1263 | // Add ADC baseline in mV |
| 4329977a |
1264 | signalAmp += simParam->GetADCbaseline() |
| 1265 | * (simParam->GetADCinRange() / simParam->GetADCoutRange()); |
| 11dc3a9e |
1266 | // Convert to ADC counts. Set the overflow-bit fADCoutRange if the |
| 6244debe |
1267 | // signal is larger than fADCinRange |
| 1268 | Int_t adc = 0; |
| 3551db50 |
1269 | if (signalAmp >= simParam->GetADCinRange()) { |
| 1270 | adc = ((Int_t) simParam->GetADCoutRange()); |
| 6244debe |
1271 | } |
| 1272 | else { |
| 11dc3a9e |
1273 | adc = TMath::Nint(signalAmp * (simParam->GetADCoutRange() |
| 4d18a639 |
1274 | / simParam->GetADCinRange())); |
| 6244debe |
1275 | } |
| 11dc3a9e |
1276 | |
| e23fbb27 |
1277 | inADC[iTime] = adc; |
| 1278 | outADC[iTime] = adc; |
| 4d18a639 |
1279 | |
| e23fbb27 |
1280 | } |
| 6244debe |
1281 | |
| e23fbb27 |
1282 | for (iTime = 0; iTime < nTimeTotal; iTime++) { |
| 6244debe |
1283 | // Store the amplitude of the digit if above threshold |
| 4329977a |
1284 | if (outADC[iTime] > (simParam->GetADCbaseline() + simParam->GetADCthreshold())) { |
| 6244debe |
1285 | nDigits++; |
| 3583ac1a |
1286 | digits->SetDataUnchecked(iRow,iCol,iTime,((Int_t) outADC[iTime])); |
| 6244debe |
1287 | } |
| 6244debe |
1288 | } |
| 1289 | |
| 1290 | } |
| e23fbb27 |
1291 | |
| 6244debe |
1292 | } |
| 793ff80c |
1293 | } |
| 6244debe |
1294 | |
| 793ff80c |
1295 | } |
| 1296 | |
| 1297 | // Compress the arrays |
| 3becff3c |
1298 | digits->Compress(1,0); |
| 1299 | for (iDict = 0; iDict < kNDict; iDict++) { |
| 1300 | dictionary[iDict]->Compress(1,0); |
| 1301 | } |
| f7336fa3 |
1302 | |
| 3becff3c |
1303 | totalSizeDigits += digits->GetSize(); |
| 1304 | totalSizeDict0 += dictionary[0]->GetSize(); |
| 1305 | totalSizeDict1 += dictionary[1]->GetSize(); |
| 1306 | totalSizeDict2 += dictionary[2]->GetSize(); |
| 0c24ba98 |
1307 | |
| f881dc35 |
1308 | if (nDigits > 0) { |
| 1309 | Float_t nPixel = nRowMax * nColMax * nTimeTotal; |
| 7925de54 |
1310 | AliDebug(1,Form("Found %d digits in detector %d (%3.0f)." |
| f881dc35 |
1311 | ,nDigits,iDet |
| 1312 | ,100.0 * ((Float_t) nDigits) / nPixel)); |
| 1313 | } |
| abaf1f1d |
1314 | |
| 9afbd7de |
1315 | if (fCompress) { |
| 1316 | signals->Compress(1,0); |
| 1317 | } |
| f7336fa3 |
1318 | |
| e23fbb27 |
1319 | delete [] inADC; |
| 1320 | delete [] outADC; |
| 1321 | |
| f7336fa3 |
1322 | } |
| 1323 | |
| 0c24ba98 |
1324 | if (signalsArray) { |
| 1325 | delete signalsArray; |
| 1326 | signalsArray = 0; |
| 1327 | } |
| 1328 | |
| 7925de54 |
1329 | AliDebug(1,Form("Total number of analyzed hits = %d",countHits)); |
| 1330 | AliDebug(1,Form("Total digits data size = %d, %d, %d, %d",totalSizeDigits |
| 4329977a |
1331 | ,totalSizeDict0 |
| 1332 | ,totalSizeDict1 |
| 1333 | ,totalSizeDict2)); |
| abaf1f1d |
1334 | |
| 1335 | return kTRUE; |
| 1336 | |
| 1337 | } |
| 1338 | |
| 1339 | //_____________________________________________________________________________ |
| 1340 | void AliTRDdigitizer::AddSDigitsManager(AliTRDdigitsManager *man) |
| 1341 | { |
| 1342 | // |
| 1343 | // Add a digits manager for s-digits to the input list. |
| 1344 | // |
| 1345 | |
| 1346 | fSDigitsManagerList->Add(man); |
| 1347 | |
| 1348 | } |
| 1349 | |
| b1113c6b |
1350 | //_____________________________________________________________________________ |
| 1351 | void AliTRDdigitizer::DeleteSDigitsManager() |
| 1352 | { |
| 1353 | // |
| 1354 | // Removes digits manager from the input list. |
| 1355 | // |
| 1356 | |
| 1357 | fSDigitsManagerList->Delete(); |
| 1358 | |
| 1359 | } |
| 1360 | |
| abaf1f1d |
1361 | //_____________________________________________________________________________ |
| 1362 | Bool_t AliTRDdigitizer::ConvertSDigits() |
| 1363 | { |
| 1364 | // |
| 1365 | // Converts s-digits to normal digits |
| 1366 | // |
| 1367 | |
| 1368 | // Number of track dictionary arrays |
| 1369 | const Int_t kNDict = AliTRDdigitsManager::kNDict; |
| 1370 | |
| 1371 | // Converts number of electrons to fC |
| 4d18a639 |
1372 | const Double_t kEl2fC = 1.602e-19 * 1.0e15; |
| abaf1f1d |
1373 | |
| 1374 | Int_t iDict = 0; |
| e23fbb27 |
1375 | Int_t iRow; |
| 1376 | Int_t iCol; |
| 1377 | Int_t iTime; |
| abaf1f1d |
1378 | |
| 4329977a |
1379 | AliTRDCalROC *calGainFactorROC = 0; |
| 1380 | Float_t calGainFactorDetValue = 0.0; |
| 1381 | |
| 1382 | AliTRDSimParam *simParam = AliTRDSimParam::Instance(); |
| 9afbd7de |
1383 | if (!simParam) { |
| 4329977a |
1384 | AliFatal("Could not get simulation parameters"); |
| 3551db50 |
1385 | return kFALSE; |
| 1386 | } |
| 1387 | |
| 4d18a639 |
1388 | AliTRDCommonParam *commonParam = AliTRDCommonParam::Instance(); |
| 9afbd7de |
1389 | if (!commonParam) { |
| 4329977a |
1390 | AliFatal("Could not get common parameters"); |
| 3551db50 |
1391 | return kFALSE; |
| 1392 | } |
| 1393 | |
| 4329977a |
1394 | AliTRDcalibDB *calibration = AliTRDcalibDB::Instance(); |
| 9afbd7de |
1395 | if (!calibration) { |
| 4329977a |
1396 | AliFatal("Could not get calibration object"); |
| 3551db50 |
1397 | return kFALSE; |
| 1398 | } |
| 1399 | |
| abaf1f1d |
1400 | Double_t sDigitsScale = 1.0 / GetSDigitsScale(); |
| 3551db50 |
1401 | Double_t noise = simParam->GetNoise(); |
| 1402 | Double_t padCoupling = simParam->GetPadCoupling(); |
| 1403 | Double_t timeCoupling = simParam->GetTimeCoupling(); |
| 1404 | Double_t chipGain = simParam->GetChipGain(); |
| 0c24ba98 |
1405 | Double_t coupling = padCoupling * timeCoupling; |
| 1406 | Double_t convert = kEl2fC * chipGain; |
| 3551db50 |
1407 | Double_t adcInRange = simParam->GetADCinRange(); |
| 1408 | Double_t adcOutRange = simParam->GetADCoutRange(); |
| 1409 | Int_t adcThreshold = simParam->GetADCthreshold(); |
| 1410 | Int_t adcBaseline = simParam->GetADCbaseline(); |
| 9afbd7de |
1411 | Int_t nTimeTotal = calibration->GetNumberOfTimeBins(); |
| 1412 | |
| abaf1f1d |
1413 | AliTRDdataArrayI *digitsIn; |
| 1414 | AliTRDdataArrayI *digitsOut; |
| 1415 | AliTRDdataArrayI *dictionaryIn[kNDict]; |
| 1416 | AliTRDdataArrayI *dictionaryOut[kNDict]; |
| 4329977a |
1417 | |
| 1418 | // Get the detector wise calibration objects |
| 1419 | const AliTRDCalDet *calGainFactorDet = calibration->GetGainFactorDet(); |
| 3551db50 |
1420 | |
| abaf1f1d |
1421 | // Loop through the detectors |
| 1422 | for (Int_t iDet = 0; iDet < AliTRDgeometry::Ndet(); iDet++) { |
| da581aea |
1423 | |
| abaf1f1d |
1424 | Int_t plane = fGeo->GetPlane(iDet); |
| 1425 | Int_t sector = fGeo->GetSector(iDet); |
| 1426 | Int_t chamber = fGeo->GetChamber(iDet); |
| 3551db50 |
1427 | Int_t nRowMax = commonParam->GetRowMax(plane,chamber,sector); |
| 1428 | Int_t nColMax = commonParam->GetColMax(plane); |
| abaf1f1d |
1429 | |
| e23fbb27 |
1430 | Double_t *inADC = new Double_t[nTimeTotal]; |
| 1431 | Double_t *outADC = new Double_t[nTimeTotal]; |
| 1432 | |
| abaf1f1d |
1433 | digitsIn = fSDigitsManager->GetDigits(iDet); |
| 1434 | digitsIn->Expand(); |
| 1435 | digitsOut = fDigitsManager->GetDigits(iDet); |
| 1436 | digitsOut->Allocate(nRowMax,nColMax,nTimeTotal); |
| 1437 | for (iDict = 0; iDict < kNDict; iDict++) { |
| 1438 | dictionaryIn[iDict] = fSDigitsManager->GetDictionary(iDet,iDict); |
| 1439 | dictionaryIn[iDict]->Expand(); |
| 1440 | dictionaryOut[iDict] = fDigitsManager->GetDictionary(iDet,iDict); |
| 1441 | dictionaryOut[iDict]->Allocate(nRowMax,nColMax,nTimeTotal); |
| 1442 | } |
| 1443 | |
| 6bf5f0ce |
1444 | // Don't create noise in detectors that are switched off / not installed, etc. |
| 1445 | if (( calibration->IsChamberInstalled(iDet)) && |
| 1446 | (!calibration->IsChamberMasked(iDet)) && |
| 1447 | ( fGeo->GetSMstatus(sector))) { |
| abaf1f1d |
1448 | |
| 4329977a |
1449 | // Get the calibration objects |
| 1450 | calGainFactorROC = calibration->GetGainFactorROC(iDet); |
| 1451 | calGainFactorDetValue = calGainFactorDet->GetValue(iDet); |
| 1452 | |
| 6bf5f0ce |
1453 | for (iRow = 0; iRow < nRowMax; iRow++ ) { |
| 1454 | for (iCol = 0; iCol < nColMax; iCol++ ) { |
| 9afbd7de |
1455 | |
| 6bf5f0ce |
1456 | // Check whether pad is masked |
| 1457 | // Bridged pads are not considered yet!!! |
| 4329977a |
1458 | if (calibration->IsPadMasked(iDet,iCol,iRow)) { |
| 1459 | continue; |
| 1460 | } |
| 1461 | |
| 1462 | Float_t padgain = calGainFactorDetValue |
| 1463 | * calGainFactorROC->GetValue(iCol,iRow); |
| 1464 | if (padgain <= 0) { |
| 1465 | AliError(Form("Not a valid gain %f, %d %d %d",padgain,iDet,iCol,iRow)); |
| 1466 | } |
| 6bf5f0ce |
1467 | |
| 4329977a |
1468 | for (iTime = 0; iTime < nTimeTotal; iTime++) { |
| 6bf5f0ce |
1469 | |
| 1470 | // Scale s-digits to normal digits |
| 1471 | Double_t signal = (Double_t) digitsIn->GetDataUnchecked(iRow,iCol,iTime); |
| 1472 | signal *= sDigitsScale; |
| 6bf5f0ce |
1473 | // Pad and time coupling |
| 1474 | signal *= coupling; |
| 4329977a |
1475 | // Gain factors |
| 1476 | signal *= padgain; |
| 6bf5f0ce |
1477 | // Add the noise, starting from minus ADC baseline in electrons |
| 1478 | Double_t baselineEl = adcBaseline * (adcInRange / adcOutRange) / convert; |
| 1479 | signal = TMath::Max((Double_t) gRandom->Gaus(signal,noise),-baselineEl); |
| 1480 | // Convert to mV |
| 1481 | signal *= convert; |
| 1482 | // add ADC baseline in mV |
| 1483 | signal += adcBaseline * (adcInRange / adcOutRange); |
| 1484 | // Convert to ADC counts. Set the overflow-bit adcOutRange if the |
| 1485 | // signal is larger than adcInRange |
| 1486 | Int_t adc = 0; |
| 1487 | if (signal >= adcInRange) { |
| 1488 | adc = ((Int_t) adcOutRange); |
| 1489 | } |
| 1490 | else { |
| 1491 | adc = TMath::Nint(signal * (adcOutRange / adcInRange)); |
| 1492 | } |
| 1493 | inADC[iTime] = adc; |
| 1494 | outADC[iTime] = adc; |
| 9afbd7de |
1495 | |
| 6bf5f0ce |
1496 | } |
| e23fbb27 |
1497 | |
| 6bf5f0ce |
1498 | for (iTime = 0; iTime < nTimeTotal; iTime++) { |
| 1499 | // Store the amplitude of the digit if above threshold |
| 7925de54 |
1500 | if (outADC[iTime] > (adcBaseline + adcThreshold)) { |
| 6bf5f0ce |
1501 | digitsOut->SetDataUnchecked(iRow,iCol,iTime,((Int_t) outADC[iTime])); |
| 1502 | // Copy the dictionary |
| 1503 | for (iDict = 0; iDict < kNDict; iDict++) { |
| 1504 | Int_t track = dictionaryIn[iDict]->GetDataUnchecked(iRow,iCol,iTime); |
| 1505 | dictionaryOut[iDict]->SetDataUnchecked(iRow,iCol,iTime,track); |
| 1506 | } |
| e23fbb27 |
1507 | } |
| abaf1f1d |
1508 | } |
| e23fbb27 |
1509 | |
| 6bf5f0ce |
1510 | } |
| abaf1f1d |
1511 | } |
| 6bf5f0ce |
1512 | |
| abaf1f1d |
1513 | } |
| 1514 | |
| 1515 | if (fCompress) { |
| 1516 | digitsIn->Compress(1,0); |
| 1517 | digitsOut->Compress(1,0); |
| 1518 | for (iDict = 0; iDict < kNDict; iDict++) { |
| 1519 | dictionaryIn[iDict]->Compress(1,0); |
| 1520 | dictionaryOut[iDict]->Compress(1,0); |
| 1521 | } |
| 1522 | } |
| 1523 | |
| e23fbb27 |
1524 | delete [] inADC; |
| 1525 | delete [] outADC; |
| 1526 | |
| abaf1f1d |
1527 | } |
| f7336fa3 |
1528 | |
| 1529 | return kTRUE; |
| 1530 | |
| 1531 | } |
| 1532 | |
| 16bf9884 |
1533 | //_____________________________________________________________________________ |
| abaf1f1d |
1534 | Bool_t AliTRDdigitizer::MergeSDigits() |
| 16bf9884 |
1535 | { |
| 1536 | // |
| abaf1f1d |
1537 | // Merges the input s-digits: |
| 1538 | // - The amplitude of the different inputs are summed up. |
| 1539 | // - Of the track IDs from the input dictionaries only one is |
| 1540 | // kept for each input. This works for maximal 3 different merged inputs. |
| 16bf9884 |
1541 | // |
| 1542 | |
| abaf1f1d |
1543 | // Number of track dictionary arrays |
| 1544 | const Int_t kNDict = AliTRDdigitsManager::kNDict; |
| 1545 | |
| 4d18a639 |
1546 | AliTRDSimParam *simParam = AliTRDSimParam::Instance(); |
| 9afbd7de |
1547 | if (!simParam) { |
| 4329977a |
1548 | AliFatal("Could not get simulation parameters"); |
| 3551db50 |
1549 | return kFALSE; |
| 1550 | } |
| 1551 | |
| 4d18a639 |
1552 | AliTRDCommonParam *commonParam = AliTRDCommonParam::Instance(); |
| 9afbd7de |
1553 | if (!commonParam) { |
| 4329977a |
1554 | AliFatal("Could not get common parameters"); |
| 3551db50 |
1555 | return kFALSE; |
| 1556 | } |
| 1557 | |
| 4d18a639 |
1558 | AliTRDcalibDB *calibration = AliTRDcalibDB::Instance(); |
| 9afbd7de |
1559 | if (!calibration) { |
| 4329977a |
1560 | AliFatal("Could not get calibration object"); |
| 3551db50 |
1561 | return kFALSE; |
| 1562 | } |
| 1563 | |
| abaf1f1d |
1564 | Int_t iDict = 0; |
| e23fbb27 |
1565 | Int_t jDict = 0; |
| abaf1f1d |
1566 | |
| 1567 | AliTRDdataArrayI *digitsA; |
| 1568 | AliTRDdataArrayI *digitsB; |
| 1569 | AliTRDdataArrayI *dictionaryA[kNDict]; |
| 1570 | AliTRDdataArrayI *dictionaryB[kNDict]; |
| 1571 | |
| 1572 | // Get the first s-digits |
| 1573 | fSDigitsManager = (AliTRDdigitsManager *) fSDigitsManagerList->First(); |
| 9afbd7de |
1574 | if (!fSDigitsManager) { |
| 7925de54 |
1575 | AliError("No SDigits manager"); |
| 9afbd7de |
1576 | return kFALSE; |
| 1577 | } |
| abaf1f1d |
1578 | |
| 1579 | // Loop through the other sets of s-digits |
| 1580 | AliTRDdigitsManager *mergeSDigitsManager; |
| 4d18a639 |
1581 | mergeSDigitsManager = (AliTRDdigitsManager *) |
| 1582 | fSDigitsManagerList->After(fSDigitsManager); |
| abaf1f1d |
1583 | |
| 9afbd7de |
1584 | if (mergeSDigitsManager) { |
| 7925de54 |
1585 | AliDebug(1,Form("Merge %d input files.",fSDigitsManagerList->GetSize())); |
| 9afbd7de |
1586 | } |
| 1587 | else { |
| 7925de54 |
1588 | AliDebug(1,"Only one input file."); |
| abaf1f1d |
1589 | } |
| 1590 | |
| 3551db50 |
1591 | Int_t nTimeTotal = calibration->GetNumberOfTimeBins(); |
| 1592 | |
| abaf1f1d |
1593 | Int_t iMerge = 0; |
| 1594 | while (mergeSDigitsManager) { |
| 1595 | |
| 1596 | iMerge++; |
| 1597 | |
| 1598 | // Loop through the detectors |
| 1599 | for (Int_t iDet = 0; iDet < AliTRDgeometry::Ndet(); iDet++) { |
| 1600 | |
| 4d18a639 |
1601 | Int_t plane = fGeo->GetPlane(iDet); |
| 1602 | Int_t sector = fGeo->GetSector(iDet); |
| 1603 | Int_t chamber = fGeo->GetChamber(iDet); |
| 1604 | Int_t nRowMax = commonParam->GetRowMax(plane,chamber,sector); |
| 1605 | Int_t nColMax = commonParam->GetColMax(plane); |
| abaf1f1d |
1606 | |
| 1607 | // Loop through the pixels of one detector and add the signals |
| 1608 | digitsA = fSDigitsManager->GetDigits(iDet); |
| 1609 | digitsB = mergeSDigitsManager->GetDigits(iDet); |
| 1610 | digitsA->Expand(); |
| 1611 | digitsB->Expand(); |
| 1612 | for (iDict = 0; iDict < kNDict; iDict++) { |
| 1613 | dictionaryA[iDict] = fSDigitsManager->GetDictionary(iDet,iDict); |
| 1614 | dictionaryB[iDict] = mergeSDigitsManager->GetDictionary(iDet,iDict); |
| 1615 | dictionaryA[iDict]->Expand(); |
| 1616 | dictionaryB[iDict]->Expand(); |
| 1617 | } |
| 1618 | |
| 4487dad0 |
1619 | // Merge only detectors that contain a signal |
| 1620 | Bool_t doMerge = kTRUE; |
| 1621 | if (fMergeSignalOnly) { |
| 1622 | if (digitsA->GetOverThreshold(0) == 0) { |
| 1623 | doMerge = kFALSE; |
| 1624 | } |
| abaf1f1d |
1625 | } |
| 1626 | |
| 4487dad0 |
1627 | if (doMerge) { |
| abaf1f1d |
1628 | |
| 7925de54 |
1629 | AliDebug(1,Form("Merge detector %d of input no.%d",iDet,iMerge+1)); |
| abaf1f1d |
1630 | |
| 4487dad0 |
1631 | for (Int_t iRow = 0; iRow < nRowMax; iRow++ ) { |
| 1632 | for (Int_t iCol = 0; iCol < nColMax; iCol++ ) { |
| 1633 | for (Int_t iTime = 0; iTime < nTimeTotal; iTime++) { |
| 1634 | |
| 1635 | // Add the amplitudes of the summable digits |
| 1636 | Int_t ampA = digitsA->GetDataUnchecked(iRow,iCol,iTime); |
| 1637 | Int_t ampB = digitsB->GetDataUnchecked(iRow,iCol,iTime); |
| 1638 | ampA += ampB; |
| 1639 | digitsA->SetDataUnchecked(iRow,iCol,iTime,ampA); |
| 1640 | |
| 9afbd7de |
1641 | // Add the mask to the track id if defined. |
| 4487dad0 |
1642 | for (iDict = 0; iDict < kNDict; iDict++) { |
| 1643 | Int_t trackB = dictionaryB[iDict]->GetDataUnchecked(iRow,iCol,iTime); |
| 1644 | if ((fMasks) && (trackB > 0)) { |
| 1645 | for (jDict = 0; jDict < kNDict; jDict++) { |
| 1646 | Int_t trackA = dictionaryA[iDict]->GetDataUnchecked(iRow,iCol,iTime); |
| 1647 | if (trackA == 0) { |
| 1648 | trackA = trackB + fMasks[iMerge]; |
| 1649 | dictionaryA[iDict]->SetDataUnchecked(iRow,iCol,iTime,trackA); |
| 1650 | } |
| 1651 | } |
| 1652 | } |
| e23fbb27 |
1653 | } |
| abaf1f1d |
1654 | |
| 4487dad0 |
1655 | } |
| abaf1f1d |
1656 | } |
| 4487dad0 |
1657 | } |
| 1658 | |
| abaf1f1d |
1659 | } |
| 1660 | |
| 1661 | if (fCompress) { |
| 1662 | digitsA->Compress(1,0); |
| 1663 | digitsB->Compress(1,0); |
| 1664 | for (iDict = 0; iDict < kNDict; iDict++) { |
| 1665 | dictionaryA[iDict]->Compress(1,0); |
| 1666 | dictionaryB[iDict]->Compress(1,0); |
| 1667 | } |
| 1668 | } |
| 1669 | |
| 1670 | } |
| 1671 | |
| 1672 | // The next set of s-digits |
| 4d18a639 |
1673 | mergeSDigitsManager = (AliTRDdigitsManager *) |
| 1674 | fSDigitsManagerList->After(mergeSDigitsManager); |
| abaf1f1d |
1675 | |
| 1676 | } |
| 1677 | |
| 16bf9884 |
1678 | return kTRUE; |
| 1679 | |
| 1680 | } |
| 1681 | |
| abaf1f1d |
1682 | //_____________________________________________________________________________ |
| 1683 | Bool_t AliTRDdigitizer::SDigits2Digits() |
| 1684 | { |
| 1685 | // |
| 1686 | // Merges the input s-digits and converts them to normal digits |
| 1687 | // |
| 1688 | |
| 4d18a639 |
1689 | if (!MergeSDigits()) { |
| 1690 | return kFALSE; |
| 1691 | } |
| abaf1f1d |
1692 | |
| 1693 | return ConvertSDigits(); |
| 1694 | |
| 1695 | } |
| 1696 | |
| f7336fa3 |
1697 | //_____________________________________________________________________________ |
| 0a29d0f1 |
1698 | Bool_t AliTRDdigitizer::WriteDigits() const |
| f7336fa3 |
1699 | { |
| 1700 | // |
| 1701 | // Writes out the TRD-digits and the dictionaries |
| 1702 | // |
| 1703 | |
| 4d18a639 |
1704 | // Write parameters |
| bdbb05bb |
1705 | fRunLoader->CdGAFile(); |
| bdbb05bb |
1706 | |
| da581aea |
1707 | // Store the digits and the dictionary in the tree |
| abaf1f1d |
1708 | return fDigitsManager->WriteDigits(); |
| f7336fa3 |
1709 | |
| 1710 | } |
| 793ff80c |
1711 | |
| 8e64dd77 |
1712 | //_____________________________________________________________________________ |
| 88cb7938 |
1713 | void AliTRDdigitizer::InitOutput(Int_t iEvent) |
| 8e64dd77 |
1714 | { |
| 1715 | // |
| 1716 | // Initializes the output branches |
| 1717 | // |
| 1718 | |
| 1719 | fEvent = iEvent; |
| 88cb7938 |
1720 | |
| 9afbd7de |
1721 | if (!fRunLoader) { |
| 1722 | AliError("Run Loader is NULL"); |
| 1723 | return; |
| 1724 | } |
| 1725 | |
| 4329977a |
1726 | AliLoader *loader = fRunLoader->GetLoader("TRDLoader"); |
| 9afbd7de |
1727 | if (!loader) { |
| 1728 | AliError("Can not get TRD loader from Run Loader"); |
| 1729 | return; |
| 1730 | } |
| 88cb7938 |
1731 | |
| 4d18a639 |
1732 | TTree *tree = 0; |
| 88cb7938 |
1733 | |
| 9afbd7de |
1734 | if (fSDigits) { |
| 1735 | // If we produce SDigits |
| 88cb7938 |
1736 | tree = loader->TreeS(); |
| 9afbd7de |
1737 | if (!tree) { |
| 88cb7938 |
1738 | loader->MakeTree("S"); |
| 1739 | tree = loader->TreeS(); |
| 9afbd7de |
1740 | } |
| 1741 | } |
| 1742 | else { |
| 1743 | // If we produce Digits |
| 1744 | tree = loader->TreeD(); |
| 1745 | if (!tree) { |
| 1746 | loader->MakeTree("D"); |
| 1747 | tree = loader->TreeD(); |
| 1748 | } |
| 1749 | } |
| 1750 | |
| 88cb7938 |
1751 | fDigitsManager->SetEvent(iEvent); |
| 1752 | fDigitsManager->MakeBranch(tree); |
| 8e64dd77 |
1753 | |
| 1754 | } |
| 3551db50 |
1755 | |
| 1756 | //_____________________________________________________________________________ |
| 1757 | Double_t AliTRDdigitizer::TimeStruct(Float_t vdrift, Double_t dist, Double_t z) |
| 1758 | { |
| 1759 | // |
| 1760 | // Applies the time structure of the drift cells (by C.Lippmann). |
| 1761 | // The drift time of electrons to the anode wires depends on the |
| 1762 | // distance to the wire (z) and on the position in the drift region. |
| 1763 | // |
| 1764 | // input : |
| 1765 | // dist = radial distance from (cathode) pad plane [cm] |
| 1766 | // z = distance from anode wire (parallel to cathode planes) [cm] |
| 1767 | // |
| 1768 | // output : |
| 1769 | // tdrift = the drift time of an electron at the given position |
| 1770 | // |
| 1771 | // We interpolate between the drift time values at the two drift |
| 1772 | // velocities fVDlo and fVDhi, being smaller and larger than |
| 1773 | // fDriftVelocity. We use the two stored drift time maps fTimeStruct1 |
| 1774 | // and fTimeStruct2, calculated for the two mentioned drift velocities. |
| 1775 | // |
| 1776 | |
| 1777 | SampleTimeStruct(vdrift); |
| 1778 | |
| 4d18a639 |
1779 | // Indices: |
| 1780 | Int_t r1 = (Int_t)(10 * dist); |
| 9afbd7de |
1781 | if (r1 < 0) r1 = 0; |
| 1782 | if (r1 > 37) r1 = 37; |
| 1783 | Int_t r2 = r1 + 1; |
| 1784 | if (r2 < 0) r2 = 0; |
| 1785 | if (r2 > 37) r2 = 37; |
| 1786 | const Int_t kz1 = ((Int_t)(100 * z / 2.5)); |
| 1787 | const Int_t kz2 = kz1 + 1; |
| 1788 | |
| 4d18a639 |
1789 | if ((r1 < 0) || |
| 1790 | (r1 > 37) || |
| 1791 | (kz1 < 0) || |
| 1792 | (kz1 > 10)) { |
| 7925de54 |
1793 | AliWarning(Form("Indices out of range: dist=%.2f, z=%.2f, r1=%d, kz1=%d" |
| 9afbd7de |
1794 | ,dist,z,r1,kz1)); |
| 3551db50 |
1795 | } |
| 1796 | |
| 4d18a639 |
1797 | const Float_t ky111 = fTimeStruct1[r1+38*kz1]; |
| 9afbd7de |
1798 | const Float_t ky221 = ((r2 <= 37) && (kz2 <= 10)) |
| 4d18a639 |
1799 | ? fTimeStruct1[r2+38*kz2] |
| 1800 | : fTimeStruct1[37+38*10]; |
| 9afbd7de |
1801 | const Float_t ky121 = (kz2 <= 10) |
| 4d18a639 |
1802 | ? fTimeStruct1[r1+38*kz2] |
| 1803 | : fTimeStruct1[r1+38*10]; |
| 9afbd7de |
1804 | const Float_t ky211 = (r2 <= 37) |
| 4d18a639 |
1805 | ? fTimeStruct1[r2+38*kz1] |
| 1806 | : fTimeStruct1[37+38*kz1]; |
| 3551db50 |
1807 | |
| 1808 | // 2D Interpolation, lower drift time map |
| 1809 | const Float_t ky11 = (ky211-ky111)*10*dist + ky111 - (ky211-ky111)*r1; |
| 1810 | const Float_t ky21 = (ky221-ky121)*10*dist + ky121 - (ky221-ky121)*r1; |
| 1811 | |
| 4d18a639 |
1812 | const Float_t ky112 = fTimeStruct2[r1+38*kz1]; |
| 9afbd7de |
1813 | const Float_t ky222 = ((r2 <= 37) && (kz2 <= 10)) |
| 4d18a639 |
1814 | ? fTimeStruct2[r2+38*kz2] |
| 1815 | : fTimeStruct2[37+38*10]; |
| 9afbd7de |
1816 | const Float_t ky122 = (kz2 <= 10) |
| 4d18a639 |
1817 | ? fTimeStruct2[r1+38*kz2] |
| 1818 | : fTimeStruct2[r1+38*10]; |
| 9afbd7de |
1819 | const Float_t ky212 = (r2 <= 37) |
| 4d18a639 |
1820 | ? fTimeStruct2[r2+38*kz1] |
| 1821 | : fTimeStruct2[37+38*kz1]; |
| 3551db50 |
1822 | |
| 1823 | // 2D Interpolation, larger drift time map |
| 1824 | const Float_t ky12 = (ky212-ky112)*10*dist + ky112 - (ky212-ky112)*r1; |
| 1825 | const Float_t ky22 = (ky222-ky122)*10*dist + ky122 - (ky222-ky122)*r1; |
| 1826 | |
| 4d18a639 |
1827 | // Dist now is the drift distance to the anode wires (negative if electrons are |
| 3551db50 |
1828 | // between anode wire plane and cathode pad plane) |
| 9afbd7de |
1829 | dist -= AliTRDgeometry::AmThick() / 2.0; |
| 3551db50 |
1830 | |
| 1831 | // Get the drift times for the drift velocities fVDlo and fVDhi |
| 9afbd7de |
1832 | const Float_t ktdrift1 = ((TMath::Abs(dist) > 0.005) || (z > 0.005)) |
| 1833 | ? (ky21 - ky11) * 100 * z / 2.5 + ky11 - (ky21 - ky11) * kz1 |
| 1834 | : 0.0; |
| 1835 | const Float_t ktdrift2 = ((TMath::Abs(dist) > 0.005) || (z > 0.005)) |
| 1836 | ? (ky22 - ky12) * 100 * z / 2.5 + ky12 - (ky22 - ky12) * kz1 |
| 1837 | : 0.0; |
| 3551db50 |
1838 | |
| 1839 | // 1D Interpolation between the values at fVDlo and fVDhi |
| 4d18a639 |
1840 | Float_t a = (ktdrift2 - ktdrift1) |
| 1841 | / (fVDhi - fVDlo); |
| 1842 | Float_t b = ktdrift2 - a * fVDhi; |
| 3551db50 |
1843 | |
| 3551db50 |
1844 | return a * vdrift + b; |
| 1845 | |
| 1846 | } |
| 1847 | |
| 1848 | //_____________________________________________________________________________ |
| 1849 | void AliTRDdigitizer::SampleTimeStruct(Float_t vdrift) |
| 1850 | { |
| 1851 | // |
| 1852 | // Samples the timing structure of a drift cell |
| 1853 | // Drift Time data calculated with Garfield (by C.Lippmann) |
| 1854 | // |
| 1855 | |
| 4329977a |
1856 | // Nothing to do |
| 4d18a639 |
1857 | if (vdrift == fTimeLastVdrift) { |
| 3551db50 |
1858 | return; |
| 9afbd7de |
1859 | } |
| 4d18a639 |
1860 | fTimeLastVdrift = vdrift; |
| 3551db50 |
1861 | |
| 9afbd7de |
1862 | // Drift time maps are saved for some drift velocity values (in drift region): |
| 3551db50 |
1863 | Float_t fVDsmp[8]; |
| 1864 | fVDsmp[0] = 1.032; |
| 1865 | fVDsmp[1] = 1.158; |
| 1866 | fVDsmp[2] = 1.299; |
| 1867 | fVDsmp[3] = 1.450; |
| 1868 | fVDsmp[4] = 1.610; |
| 1869 | fVDsmp[5] = 1.783; |
| 1870 | fVDsmp[6] = 1.959; |
| 1871 | fVDsmp[7] = 2.134; |
| 1872 | |
| 9afbd7de |
1873 | if (vdrift < fVDsmp[0]) { |
| 7925de54 |
1874 | AliWarning(Form("Drift Velocity too small (%.3f<%.3f)",vdrift,fVDsmp[0])); |
| 3551db50 |
1875 | vdrift = fVDsmp[0]; |
| 9afbd7de |
1876 | } |
| 1877 | else if (vdrift > fVDsmp[7]) { |
| 7925de54 |
1878 | AliWarning(Form("Drift Velocity too large (%.3f>%.3f)",vdrift,fVDsmp[6])); |
| 3551db50 |
1879 | vdrift = fVDsmp[7]; |
| 1880 | } |
| 1881 | |
| 1882 | const Int_t ktimebin = 38; |
| 9afbd7de |
1883 | const Int_t kZbin = 11; |
| 3551db50 |
1884 | |
| 1885 | // Garfield simulation at UD = -1500V; vd = 1.032cm/microsec, <driftfield> = 525V/cm |
| 1886 | Float_t time1500[ktimebin][kZbin] = |
| 1887 | {{0.09170, 0.09205, 0.09306, 0.09475, 0.09716, 0.10035, |
| 1888 | 0.10445, 0.10993, 0.11838, 0.13986, 0.37858}, |
| 1889 | {0.06588, 0.06626, 0.06739, 0.06926, 0.07186, 0.07524, |
| 1890 | 0.07951, 0.08515, 0.09381, 0.11601, 0.35673}, |
| 1891 | {0.03946, 0.04003, 0.04171, 0.04435, 0.04780, 0.05193, |
| 1892 | 0.05680, 0.06306, 0.07290, 0.09873, 0.34748}, |
| 1893 | {0.01151, 0.01283, 0.01718, 0.02282, 0.02880, 0.03479, |
| 1894 | 0.04098, 0.04910, 0.06413, 0.10567, 0.36897}, |
| 1895 | {0.01116, 0.01290, 0.01721, 0.02299, 0.02863, 0.03447, |
| 1896 | 0.04074, 0.04984, 0.06839, 0.11625, 0.37277}, |
| 1897 | {0.03919, 0.03974, 0.04131, 0.04380, 0.04703, 0.05102, |
| 1898 | 0.05602, 0.06309, 0.07651, 0.10938, 0.36838}, |
| 1899 | {0.06493, 0.06560, 0.06640, 0.06802, 0.07051, 0.07392, |
| 1900 | 0.07853, 0.08510, 0.09690, 0.12621, 0.38058}, |
| 1901 | {0.09174, 0.09186, 0.09225, 0.09303, 0.09477, 0.00000, |
| 1902 | 0.11205, 0.11952, 0.13461, 0.16984, 0.43017}, |
| 1903 | {0.14356, 0.14494, 0.14959, 0.16002, 0.18328, 0.27981, |
| 1904 | 0.22785, 0.21240, 0.21948, 0.25965, 0.52392}, |
| 1905 | {0.23120, 0.23366, 0.24046, 0.25422, 0.28071, 0.36914, |
| 1906 | 0.32999, 0.31208, 0.31772, 0.35804, 0.62249}, |
| 1907 | {0.32686, 0.32916, 0.33646, 0.35053, 0.37710, 0.46292, |
| 1908 | 0.42773, 0.40948, 0.41497, 0.45527, 0.71955}, |
| 1909 | {0.42353, 0.42583, 0.43317, 0.44727, 0.47380, 0.55884, |
| 1910 | 0.52479, 0.50650, 0.51194, 0.55225, 0.81658}, |
| 1911 | {0.52038, 0.52271, 0.53000, 0.54415, 0.57064, 0.65545, |
| 1912 | 0.62172, 0.60341, 0.60885, 0.64915, 0.91339}, |
| 1913 | {0.61724, 0.61953, 0.62694, 0.64098, 0.66756, 0.75226, |
| 1914 | 0.71862, 0.70030, 0.70575, 0.74604, 1.01035}, |
| 1915 | {0.71460, 0.71678, 0.72376, 0.73786, 0.76447, 0.84913, |
| 1916 | 0.81551, 0.79720, 0.80264, 0.84292, 1.10723}, |
| 1917 | {0.81101, 0.81334, 0.82066, 0.83475, 0.86127, 0.94599, |
| 1918 | 0.91240, 0.89408, 0.89952, 0.93981, 1.20409}, |
| 1919 | {0.90788, 0.91023, 0.91752, 0.93163, 0.95815, 1.04293, |
| 1920 | 1.00929, 0.99096, 0.99640, 1.03669, 1.30106}, |
| 1921 | {1.00477, 1.00707, 1.01449, 1.02852, 1.05504, 1.13976, |
| 1922 | 1.10617, 1.08784, 1.09329, 1.13358, 1.39796}, |
| 1923 | {1.10166, 1.10397, 1.11130, 1.12541, 1.15257, 1.23672, |
| 1924 | 1.20307, 1.18472, 1.19018, 1.23046, 1.49486}, |
| 1925 | {1.19854, 1.20084, 1.20818, 1.22235, 1.24885, 1.33355, |
| 1926 | 1.29992, 1.28156, 1.28707, 1.32735, 1.59177}, |
| 1927 | {1.29544, 1.29780, 1.30507, 1.31917, 1.34575, 1.43073, |
| 1928 | 1.39681, 1.37851, 1.38396, 1.42377, 1.68854}, |
| 1929 | {1.39236, 1.39462, 1.40205, 1.41607, 1.44259, 1.52745, |
| 1930 | 1.49368, 1.47541, 1.48083, 1.52112, 1.78546}, |
| 1931 | {1.49314, 1.49149, 1.49885, 1.51297, 1.53949, 1.62420, |
| 1932 | 1.59016, 1.57231, 1.57772, 1.61800, 1.88048}, |
| 1933 | {1.58610, 1.58839, 1.59572, 1.60983, 1.63635, 1.72109, |
| 1934 | 1.68651, 1.66921, 1.67463, 1.71489, 1.97918}, |
| 1935 | {1.68400, 1.68529, 1.69261, 1.70671, 1.73331, 1.81830, |
| 1936 | 1.78341, 1.76605, 1.77150, 1.81179, 2.07608}, |
| 1937 | {1.77991, 1.78215, 1.78952, 1.80385, 1.83014, 1.91486, |
| 1938 | 1.88128, 1.86215, 1.86837, 1.90865, 2.17304}, |
| 1939 | {1.87674, 1.87904, 1.88647, 1.90052, 1.92712, 2.01173, |
| 1940 | 1.97812, 1.95905, 1.96527, 2.00710, 2.26979}, |
| 1941 | {1.97369, 1.97594, 1.98326, 1.99869, 2.02442, 2.10865, |
| 1942 | 2.07501, 2.05666, 2.06214, 2.10243, 2.36669}, |
| 1943 | {2.07052, 2.07281, 2.08016, 2.09425, 2.12132, 2.20555, |
| 1944 | 2.17182, 2.15341, 2.15904, 2.19933, 2.46363}, |
| 1945 | {2.16742, 2.16971, 2.17707, 2.19114, 2.21766, 2.30240, |
| 1946 | 2.26877, 2.25015, 2.25573, 2.29586, 2.56060}, |
| 1947 | {2.26423, 2.26659, 2.27396, 2.28803, 2.31456, 2.40828, |
| 1948 | 2.36567, 2.34705, 2.35282, 2.39765, 2.65744}, |
| 1949 | {2.36153, 2.36349, 2.37330, 2.38501, 2.41159, 2.49940, |
| 1950 | 2.46257, 2.44420, 2.44843, 2.48987, 2.75431}, |
| 1951 | {2.46558, 2.46035, 2.46822, 2.48181, 2.50849, 2.59630, |
| 1952 | 2.55947, 2.54112, 2.54513, 2.58677, 2.85094}, |
| 1953 | {2.56248, 2.55723, 2.56486, 2.57871, 2.60520, 2.68998, |
| 1954 | 2.65626, 2.63790, 2.64316, 2.68360, 2.94813}, |
| 1955 | {2.65178, 2.65441, 2.66153, 2.67556, 2.70210, 2.78687, |
| 1956 | 2.75319, 2.73463, 2.74032, 2.78060, 3.04503}, |
| 1957 | {2.74868, 2.75131, 2.75870, 2.77245, 2.79385, 2.88700, |
| 1958 | 2.85009, 2.83177, 2.83723, 2.87750, 3.14193}, |
| 1959 | {2.84574, 2.84789, 2.85560, 2.86935, 2.89075, 2.98060, |
| 1960 | 2.94576, 2.92868, 2.93356, 2.97436, 3.23868}, |
| 1961 | {2.94239, 2.94469, 2.95221, 2.96625, 2.99345, 3.07747, |
| 1962 | 3.04266, 3.02545, 3.03051, 3.07118, 3.33555}}; |
| 1963 | |
| 1964 | // Garfield simulation at UD = -1600V; vd = 1.158cm/microsec, <driftfield> = 558V/cm |
| 1965 | Float_t time1600[ktimebin][kZbin] = |
| 1966 | {{0.09169, 0.09203, 0.09305, 0.09473, 0.09714, 0.10032, |
| 1967 | 0.10441, 0.10990, 0.11835, 0.13986, 0.37845}, |
| 1968 | {0.06589, 0.06626, 0.06738, 0.06924, 0.07184, 0.07521, |
| 1969 | 0.07947, 0.08512, 0.09379, 0.11603, 0.35648}, |
| 1970 | {0.03947, 0.04003, 0.04171, 0.04434, 0.04778, 0.05190, |
| 1971 | 0.05678, 0.06304, 0.07292, 0.09876, 0.34759}, |
| 1972 | {0.01111, 0.01281, 0.01718, 0.02281, 0.02879, 0.03477, |
| 1973 | 0.04097, 0.04910, 0.06415, 0.10573, 0.36896}, |
| 1974 | {0.01120, 0.01311, 0.01721, 0.02279, 0.02862, 0.03446, |
| 1975 | 0.04074, 0.04981, 0.06825, 0.11595, 0.37255}, |
| 1976 | {0.03919, 0.03980, 0.04132, 0.04380, 0.04704, 0.05102, |
| 1977 | 0.05602, 0.06302, 0.07633, 0.10896, 0.36743}, |
| 1978 | {0.06531, 0.06528, 0.06631, 0.06805, 0.07053, 0.07392, |
| 1979 | 0.07853, 0.08505, 0.09669, 0.12578, 0.37967}, |
| 1980 | {0.09157, 0.09171, 0.09216, 0.09301, 0.09475, 0.00000, |
| 1981 | 0.11152, 0.11879, 0.13352, 0.16802, 0.42750}, |
| 1982 | {0.13977, 0.14095, 0.14509, 0.15433, 0.17534, 0.26406, |
| 1983 | 0.21660, 0.20345, 0.21113, 0.25067, 0.51434}, |
| 1984 | {0.21816, 0.22041, 0.22631, 0.23850, 0.26208, 0.34340, |
| 1985 | 0.30755, 0.29237, 0.29878, 0.33863, 0.60258}, |
| 1986 | {0.30344, 0.30547, 0.31241, 0.32444, 0.34809, 0.42696, |
| 1987 | 0.39464, 0.37919, 0.38546, 0.42530, 0.68926}, |
| 1988 | {0.38969, 0.39164, 0.39810, 0.41059, 0.43441, 0.51246, |
| 1989 | 0.48112, 0.46562, 0.47191, 0.51172, 0.77558}, |
| 1990 | {0.47592, 0.47799, 0.48442, 0.49689, 0.52061, 0.59855, |
| 1991 | 0.56752, 0.55201, 0.55826, 0.59808, 0.86202}, |
| 1992 | {0.56226, 0.56428, 0.57074, 0.58324, 0.60696, 0.68483, |
| 1993 | 0.65388, 0.63837, 0.64461, 0.68445, 0.94830}, |
| 1994 | {0.64881, 0.65063, 0.65709, 0.66958, 0.69331, 0.77117, |
| 1995 | 0.74023, 0.72472, 0.73098, 0.77079, 1.03486}, |
| 1996 | {0.73506, 0.73698, 0.74344, 0.75596, 0.77964, 0.85751, |
| 1997 | 0.82658, 0.81107, 0.81731, 0.85712, 1.12106}, |
| 1998 | {0.82132, 0.82333, 0.82979, 0.84228, 0.86608, 0.94386, |
| 1999 | 0.91293, 0.89742, 0.90367, 0.94335, 1.20737}, |
| 2000 | {0.90767, 0.90968, 0.91614, 0.92863, 0.95236, 1.03021, |
| 2001 | 0.99928, 0.98377, 0.99001, 1.02984, 1.29371}, |
| 2002 | {0.99410, 0.99602, 1.00257, 1.01498, 1.03869, 1.11720, |
| 2003 | 1.08563, 1.07011, 1.07637, 1.11621, 1.37873}, |
| 2004 | {1.08036, 1.08240, 1.08884, 1.10138, 1.12504, 1.20301, |
| 2005 | 1.17198, 1.15647, 1.16272, 1.20255, 1.46651}, |
| 2006 | {1.16670, 1.16872, 1.17525, 1.18783, 1.21139, 1.28934, |
| 2007 | 1.25833, 1.24281, 1.24909, 1.28889, 1.55275}, |
| 2008 | {1.25307, 1.25510, 1.26153, 1.27404, 1.29773, 1.37584, |
| 2009 | 1.34469, 1.32916, 1.33536, 1.37524, 1.63915}, |
| 2010 | {1.33942, 1.34146, 1.34788, 1.36040, 1.38410, 1.46438, |
| 2011 | 1.43105, 1.41537, 1.42176, 1.46158, 1.72538}, |
| 2012 | {1.42579, 1.42782, 1.43458, 1.44674, 1.47043, 1.55085, |
| 2013 | 1.51675, 1.50168, 1.50810, 1.54793, 1.81174}, |
| 2014 | {1.51207, 1.51454, 1.52060, 1.53307, 1.55684, 1.63478, |
| 2015 | 1.60336, 1.58820, 1.59446, 1.63414, 1.89814}, |
| 2016 | {1.59856, 1.60047, 1.60693, 1.61942, 1.64317, 1.72257, |
| 2017 | 1.69008, 1.67454, 1.68080, 1.72063, 1.98433}, |
| 2018 | {1.68481, 1.68682, 1.69330, 1.70584, 1.72949, 1.80752, |
| 2019 | 1.77643, 1.76089, 1.76716, 1.80692, 2.07069}, |
| 2020 | {1.77117, 1.77319, 1.77969, 1.79260, 1.81583, 1.89376, |
| 2021 | 1.86226, 1.84720, 1.85355, 1.89256, 2.15343}, |
| 2022 | {1.85748, 1.85967, 1.86605, 1.87848, 1.90222, 1.98010, |
| 2023 | 1.94913, 1.93271, 1.93981, 1.97968, 2.24355}, |
| 2024 | {1.94386, 1.94587, 1.95233, 1.96484, 1.98854, 2.06646, |
| 2025 | 2.03542, 2.01755, 2.02617, 2.06604, 2.32993}, |
| 2026 | {2.03022, 2.03230, 2.03868, 2.05134, 2.07488, 2.15367, |
| 2027 | 2.12178, 2.10391, 2.11252, 2.15432, 2.41623}, |
| 2028 | {2.11656, 2.11857, 2.12505, 2.13772, 2.16147, 2.23919, |
| 2029 | 2.20817, 2.19265, 2.20744, 2.23872, 2.49996}, |
| 2030 | {2.20291, 2.20611, 2.21137, 2.22387, 2.24758, 2.32563, |
| 2031 | 2.29450, 2.27901, 2.28525, 2.32507, 2.58897}, |
| 2032 | {2.28922, 2.29172, 2.29774, 2.31345, 2.33400, 2.41287, |
| 2033 | 2.38086, 2.36535, 2.37160, 2.40869, 2.67113}, |
| 2034 | {2.37572, 2.37764, 2.38410, 2.39803, 2.42046, 2.49817, |
| 2035 | 2.46721, 2.45171, 2.45794, 2.49505, 2.76061}, |
| 2036 | {2.46190, 2.46396, 2.47043, 2.48340, 2.50665, 2.58453, |
| 2037 | 2.55357, 2.53728, 2.54430, 2.58407, 2.84816}, |
| 2038 | {2.54833, 2.55032, 2.55679, 2.56976, 2.59312, 2.67103, |
| 2039 | 2.63993, 2.62364, 2.63062, 2.67040, 2.93444}, |
| 2040 | {2.63456, 2.63660, 2.64304, 2.65555, 2.67938, 2.75739, |
| 2041 | 2.72629, 2.71064, 2.71688, 2.75671, 3.01886}}; |
| 2042 | |
| 2043 | // Garfield simulation at UD = -1700V; vd = 1.299cm/microsec, <driftfield> = 590V/cm |
| 2044 | Float_t time1700[ktimebin][kZbin] = |
| 2045 | {{0.09167, 0.09201, 0.09302, 0.09471, 0.09712, 0.10029, |
| 2046 | 0.10438, 0.10986, 0.11832, 0.13986, 0.37824}, |
| 2047 | {0.06591, 0.06626, 0.06736, 0.06923, 0.07183, 0.07519, |
| 2048 | 0.07944, 0.08511, 0.09378, 0.11603, 0.35625}, |
| 2049 | {0.03946, 0.04003, 0.04170, 0.04433, 0.04777, 0.05189, |
| 2050 | 0.05676, 0.06301, 0.07291, 0.09880, 0.34724}, |
| 2051 | {0.01110, 0.01281, 0.01718, 0.02280, 0.02879, 0.03476, |
| 2052 | 0.04096, 0.04910, 0.06417, 0.10582, 0.36861}, |
| 2053 | {0.01115, 0.01294, 0.01721, 0.02276, 0.02862, 0.03447, |
| 2054 | 0.04074, 0.04980, 0.06812, 0.11565, 0.37231}, |
| 2055 | {0.03920, 0.03974, 0.04133, 0.04381, 0.04706, 0.05105, |
| 2056 | 0.05603, 0.06299, 0.07618, 0.10860, 0.36646}, |
| 2057 | {0.06498, 0.06529, 0.06634, 0.06808, 0.07055, 0.07395, |
| 2058 | 0.07852, 0.08500, 0.09650, 0.12532, 0.37850}, |
| 2059 | {0.09143, 0.09159, 0.09207, 0.09297, 0.09473, 0.00000, |
| 2060 | 0.11102, 0.11809, 0.13245, 0.16627, 0.42496}, |
| 2061 | {0.13646, 0.13750, 0.14112, 0.14926, 0.16806, 0.24960, |
| 2062 | 0.20627, 0.19536, 0.20366, 0.24256, 0.50557}, |
| 2063 | {0.20678, 0.20848, 0.21384, 0.22450, 0.24552, 0.32018, |
| 2064 | 0.28740, 0.27477, 0.28196, 0.32128, 0.58475}, |
| 2065 | {0.28287, 0.28461, 0.29020, 0.30108, 0.32224, 0.39467, |
| 2066 | 0.36500, 0.35217, 0.35926, 0.39860, 0.66194}, |
| 2067 | {0.35972, 0.36145, 0.36713, 0.37797, 0.39912, 0.47091, |
| 2068 | 0.44212, 0.42925, 0.43632, 0.47563, 0.73892}, |
| 2069 | {0.43667, 0.43841, 0.44413, 0.45494, 0.47607, 0.54780, |
| 2070 | 0.51912, 0.50627, 0.51334, 0.55254, 0.81595}, |
| 2071 | {0.51365, 0.51540, 0.52101, 0.53193, 0.55305, 0.62463, |
| 2072 | 0.59617, 0.58328, 0.59035, 0.62965, 0.89303}, |
| 2073 | {0.59064, 0.59240, 0.59801, 0.60893, 0.63009, 0.70169, |
| 2074 | 0.67317, 0.66028, 0.66735, 0.70666, 0.96995}, |
| 2075 | {0.66765, 0.66939, 0.67501, 0.68592, 0.70724, 0.77863, |
| 2076 | 0.75016, 0.73728, 0.74435, 0.78366, 1.04696}, |
| 2077 | {0.74464, 0.74636, 0.75200, 0.76293, 0.78405, 0.85561, |
| 2078 | 0.82716, 0.81427, 0.82133, 0.86064, 1.12396}, |
| 2079 | {0.82165, 0.82340, 0.82902, 0.83991, 0.86104, 0.93266, |
| 2080 | 0.90414, 0.89128, 0.89834, 0.93763, 1.20100}, |
| 2081 | {0.89863, 0.90042, 0.90659, 0.91705, 0.93805, 1.00960, |
| 2082 | 0.98115, 0.96825, 0.97533, 1.01462, 1.27801}, |
| 2083 | {0.97563, 0.97740, 0.98310, 0.99391, 1.01504, 1.08659, |
| 2084 | 1.05814, 1.04526, 1.05233, 1.09163, 1.35503}, |
| 2085 | {1.05276, 1.05451, 1.06002, 1.07090, 1.09099, 1.16357, |
| 2086 | 1.13516, 1.12225, 1.12933, 1.16863, 1.43195}, |
| 2087 | {1.12977, 1.13138, 1.13700, 1.14792, 1.16797, 1.24061, |
| 2088 | 1.21212, 1.19926, 1.20626, 1.24554, 1.50900}, |
| 2089 | {1.20664, 1.20839, 1.21400, 1.22490, 1.24606, 1.31772, |
| 2090 | 1.28914, 1.27382, 1.28329, 1.32262, 1.58550}, |
| 2091 | {1.28367, 1.28541, 1.29099, 1.30189, 1.32312, 1.39460, |
| 2092 | 1.36612, 1.34924, 1.36030, 1.39961, 1.66310}, |
| 2093 | {1.36064, 1.36249, 1.36799, 1.37896, 1.40004, 1.48030, |
| 2094 | 1.44314, 1.43032, 1.43731, 1.47659, 1.73442}, |
| 2095 | {1.43762, 1.43937, 1.44497, 1.45618, 1.47704, 1.54932, |
| 2096 | 1.52012, 1.50725, 1.51430, 1.55357, 1.81708}, |
| 2097 | {1.51462, 1.51937, 1.52203, 1.53316, 1.55403, 1.62572, |
| 2098 | 1.59713, 1.58424, 1.59128, 1.63061, 1.89406}, |
| 2099 | {1.59162, 1.59338, 1.59947, 1.60989, 1.63103, 1.70270, |
| 2100 | 1.67411, 1.66124, 1.66799, 1.70759, 1.97103}, |
| 2101 | {1.66874, 1.67037, 1.67597, 1.68687, 1.70814, 1.77969, |
| 2102 | 1.75112, 1.73806, 1.74530, 1.78457, 2.04794}, |
| 2103 | {1.74693, 1.74749, 1.75297, 1.76476, 1.78500, 1.85667, |
| 2104 | 1.82811, 1.81504, 1.82101, 1.86161, 2.12492}, |
| 2105 | {1.82260, 1.82437, 1.82995, 1.84174, 1.86202, 1.93372, |
| 2106 | 1.90509, 1.89202, 1.89930, 1.93859, 2.20189}, |
| 2107 | {1.89964, 1.90135, 1.90693, 1.91789, 1.93952, 2.01080, |
| 2108 | 1.98207, 1.96921, 1.97628, 2.01384, 2.27887}, |
| 2109 | {1.97662, 1.97917, 1.98611, 1.99487, 2.01601, 2.08778, |
| 2110 | 2.05846, 2.04623, 2.05330, 2.09244, 2.35585}, |
| 2111 | {2.05359, 2.05615, 2.06309, 2.07187, 2.09867, 2.16459, |
| 2112 | 2.13610, 2.12322, 2.13029, 2.16942, 2.43199}, |
| 2113 | {2.13063, 2.13233, 2.13795, 2.14886, 2.17008, 2.24199, |
| 2114 | 2.21310, 2.20020, 2.20727, 2.24659, 2.50983}, |
| 2115 | {2.20761, 2.20931, 2.21955, 2.22624, 2.24708, 2.32147, |
| 2116 | 2.29009, 2.27725, 2.28276, 2.32359, 2.58680}, |
| 2117 | {2.28459, 2.29108, 2.29202, 2.30286, 2.32007, 2.39559, |
| 2118 | 2.36683, 2.35422, 2.36119, 2.40058, 2.66081}, |
| 2119 | {2.36153, 2.36806, 2.36889, 2.37985, 2.40092, 2.47828, |
| 2120 | 2.44381, 2.43099, 2.43819, 2.47750, 2.73779}}; |
| 2121 | |
| 2122 | // Garfield simulation at UD = -1800V; vd = 1.450cm/microsec, <driftfield> = 623V/cm |
| 2123 | Float_t time1800[ktimebin][kZbin] = |
| 2124 | {{0.09166, 0.09199, 0.09300, 0.09470, 0.09709, 0.10026, |
| 2125 | 0.10434, 0.10983, 0.11831, 0.13987, 0.37802}, |
| 2126 | {0.06585, 0.06623, 0.06735, 0.06921, 0.07180, 0.07520, |
| 2127 | 0.07941, 0.08507, 0.09376, 0.11604, 0.35624}, |
| 2128 | {0.03945, 0.04004, 0.04169, 0.04432, 0.04776, 0.05187, |
| 2129 | 0.05674, 0.06300, 0.07290, 0.09884, 0.34704}, |
| 2130 | {0.01108, 0.01287, 0.01717, 0.02280, 0.02880, 0.03476, |
| 2131 | 0.04095, 0.04909, 0.06419, 0.10589, 0.36843}, |
| 2132 | {0.01115, 0.01287, 0.01720, 0.02276, 0.02862, 0.03448, |
| 2133 | 0.04073, 0.04973, 0.06799, 0.11535, 0.37224}, |
| 2134 | {0.03918, 0.03975, 0.04134, 0.04382, 0.04707, 0.05105, |
| 2135 | 0.05603, 0.06296, 0.07605, 0.10822, 0.36560}, |
| 2136 | {0.06498, 0.06532, 0.06635, 0.06809, 0.07058, 0.07395, |
| 2137 | 0.07855, 0.08495, 0.09632, 0.12488, 0.37730}, |
| 2138 | {0.09130, 0.09160, 0.09199, 0.09300, 0.09472, 0.00000, |
| 2139 | 0.11059, 0.11747, 0.13146, 0.16462, 0.42233}, |
| 2140 | {0.13364, 0.13449, 0.13767, 0.14481, 0.16147, 0.23635, |
| 2141 | 0.19706, 0.18812, 0.19704, 0.23520, 0.49749}, |
| 2142 | {0.19698, 0.19844, 0.20311, 0.21236, 0.23082, 0.29920, |
| 2143 | 0.26936, 0.25927, 0.26732, 0.30601, 0.56871}, |
| 2144 | {0.26518, 0.26670, 0.27160, 0.28099, 0.29955, 0.36597, |
| 2145 | 0.33885, 0.32858, 0.33653, 0.37524, 0.63801}, |
| 2146 | {0.33441, 0.33553, 0.34040, 0.34987, 0.36841, 0.43428, |
| 2147 | 0.40797, 0.39763, 0.40556, 0.44425, 0.70698}, |
| 2148 | {0.40296, 0.40447, 0.40934, 0.41881, 0.43737, 0.50306, |
| 2149 | 0.47695, 0.46662, 0.47455, 0.51329, 0.77600}, |
| 2150 | {0.47296, 0.47344, 0.47830, 0.48779, 0.50632, 0.57200, |
| 2151 | 0.54593, 0.53559, 0.54351, 0.58222, 0.84489}, |
| 2152 | {0.54089, 0.54264, 0.54727, 0.55673, 0.57529, 0.64094, |
| 2153 | 0.61490, 0.60457, 0.61249, 0.65118, 0.91394}, |
| 2154 | {0.60987, 0.61138, 0.61624, 0.62573, 0.64428, 0.70989, |
| 2155 | 0.68397, 0.67354, 0.68147, 0.72015, 0.98291}, |
| 2156 | {0.67883, 0.68035, 0.68521, 0.69469, 0.71324, 0.77896, |
| 2157 | 0.75287, 0.74251, 0.75043, 0.78912, 1.04458}, |
| 2158 | {0.74780, 0.74932, 0.75421, 0.76367, 0.78221, 0.84785, |
| 2159 | 0.82185, 0.81148, 0.81941, 0.85811, 1.12085}, |
| 2160 | {0.81690, 0.81830, 0.82316, 0.83263, 0.85120, 0.91683, |
| 2161 | 0.89077, 0.88045, 0.88837, 0.92707, 1.18976}, |
| 2162 | {0.88574, 0.88726, 0.89228, 0.90198, 0.92017, 0.98578, |
| 2163 | 0.95974, 0.94947, 0.95734, 0.99604, 1.25873}, |
| 2164 | {0.95493, 0.95624, 0.96110, 0.97058, 0.98913, 1.05481, |
| 2165 | 1.02873, 1.01839, 1.02631, 1.06503, 1.32772}, |
| 2166 | {1.02392, 1.02524, 1.03008, 1.03955, 1.05810, 1.12378, |
| 2167 | 1.09757, 1.08605, 1.09530, 1.13399, 1.39669}, |
| 2168 | {1.09270, 1.09418, 1.09911, 1.10854, 1.12714, 1.19281, |
| 2169 | 1.16502, 1.15633, 1.16427, 1.20271, 1.46574}, |
| 2170 | {1.16168, 1.16323, 1.16801, 1.17772, 1.19604, 1.26190, |
| 2171 | 1.23399, 1.22531, 1.23323, 1.27194, 1.53475}, |
| 2172 | {1.23061, 1.23214, 1.23698, 1.24669, 1.26503, 1.33073, |
| 2173 | 1.30461, 1.29428, 1.30220, 1.34091, 1.60372}, |
| 2174 | {1.29960, 1.30110, 1.30596, 1.31544, 1.33398, 1.39962, |
| 2175 | 1.37228, 1.36323, 1.37121, 1.40988, 1.67273}, |
| 2176 | {1.36851, 1.37007, 1.37512, 1.38441, 1.40297, 1.46865, |
| 2177 | 1.44256, 1.43222, 1.44017, 1.47878, 1.74155}, |
| 2178 | {1.43752, 1.43904, 1.44773, 1.45338, 1.47220, 1.53759, |
| 2179 | 1.51136, 1.50119, 1.50914, 1.54775, 1.81050}, |
| 2180 | {1.50646, 1.50802, 1.51288, 1.52237, 1.54097, 1.60697, |
| 2181 | 1.58049, 1.57018, 1.57811, 1.61678, 1.87947}, |
| 2182 | {1.57545, 1.57720, 1.58185, 1.59134, 1.60996, 1.67787, |
| 2183 | 1.64929, 1.63914, 1.64707, 1.68570, 1.94851}, |
| 2184 | {1.64442, 1.64617, 1.65081, 1.66035, 1.67893, 1.74684, |
| 2185 | 1.71826, 1.70745, 1.71604, 1.75310, 2.01748}, |
| 2186 | {1.71337, 1.71513, 1.71978, 1.72932, 1.74645, 1.81346, |
| 2187 | 1.78739, 1.77642, 1.78501, 1.82151, 2.08644}, |
| 2188 | {1.78238, 1.78410, 1.78876, 1.79824, 1.81678, 1.88332, |
| 2189 | 1.85639, 1.84262, 1.85397, 1.89270, 2.15533}, |
| 2190 | {1.85135, 1.85306, 1.85778, 1.86728, 1.88580, 1.95615, |
| 2191 | 1.92536, 1.91171, 1.92283, 1.96165, 2.22428}, |
| 2192 | {1.92774, 1.92184, 1.92672, 1.93618, 1.95477, 2.02048, |
| 2193 | 1.99427, 1.98068, 1.99192, 2.03062, 2.29338}, |
| 2194 | {1.98929, 1.99081, 1.99567, 2.00515, 2.02373, 2.08987, |
| 2195 | 2.06332, 2.05249, 2.05939, 2.09928, 2.36227}, |
| 2196 | {2.05829, 2.05978, 2.06464, 2.07414, 2.09272, 2.15850, |
| 2197 | 2.12928, 2.12194, 2.12987, 2.16825, 2.43083}, |
| 2198 | {2.12726, 2.12869, 2.13360, 2.14425, 2.16160, 2.22872, |
| 2199 | 2.20118, 2.19078, 2.19876, 2.23416, 2.50007}}; |
| 2200 | |
| 2201 | // Garfield simulation at UD = -1900V; vd = 1.610cm/microsec, <driftfield> = 655V/cm |
| 2202 | Float_t time1900[ktimebin][kZbin] = |
| 2203 | {{0.09166, 0.09198, 0.09298, 0.09467, 0.09707, 0.10023, |
| 2204 | 0.10431, 0.10980, 0.11828, 0.13988, 0.37789}, |
| 2205 | {0.06584, 0.06622, 0.06735, 0.06920, 0.07179, 0.07514, |
| 2206 | 0.07938, 0.08505, 0.09374, 0.11606, 0.35599}, |
| 2207 | {0.03945, 0.04002, 0.04169, 0.04432, 0.04775, 0.05185, |
| 2208 | 0.05672, 0.06298, 0.07290, 0.09888, 0.34695}, |
| 2209 | {0.01109, 0.01281, 0.01717, 0.02279, 0.02878, 0.03476, |
| 2210 | 0.04094, 0.04909, 0.06421, 0.10597, 0.36823}, |
| 2211 | {0.01115, 0.01287, 0.01720, 0.02294, 0.02862, 0.03448, |
| 2212 | 0.04074, 0.04973, 0.06783, 0.11506, 0.37206}, |
| 2213 | {0.03940, 0.03975, 0.04135, 0.04386, 0.04708, 0.05106, |
| 2214 | 0.05604, 0.06293, 0.07592, 0.10787, 0.36484}, |
| 2215 | {0.06500, 0.06534, 0.06638, 0.06811, 0.07060, 0.07413, |
| 2216 | 0.07852, 0.08491, 0.09614, 0.12446, 0.37626}, |
| 2217 | {0.09119, 0.09140, 0.09194, 0.09293, 0.09471, 0.00000, |
| 2218 | 0.11013, 0.11685, 0.13050, 0.16302, 0.41991}, |
| 2219 | {0.13111, 0.13190, 0.13466, 0.14091, 0.15554, 0.22409, |
| 2220 | 0.18846, 0.18167, 0.19113, 0.22854, 0.48995}, |
| 2221 | {0.18849, 0.18975, 0.19380, 0.20185, 0.21797, 0.28050, |
| 2222 | 0.25368, 0.24575, 0.25446, 0.29249, 0.55442}, |
| 2223 | {0.24995, 0.25125, 0.25563, 0.26366, 0.27986, 0.34065, |
| 2224 | 0.31605, 0.30815, 0.31680, 0.35482, 0.61697}, |
| 2225 | {0.31187, 0.31324, 0.31745, 0.32580, 0.34205, 0.40217, |
| 2226 | 0.37825, 0.37031, 0.37897, 0.41696, 0.67890}, |
| 2227 | {0.37401, 0.37531, 0.37955, 0.38777, 0.40395, 0.46408, |
| 2228 | 0.44037, 0.43242, 0.44108, 0.47906, 0.74122}, |
| 2229 | {0.43610, 0.43741, 0.44161, 0.44986, 0.46604, 0.52614, |
| 2230 | 0.50248, 0.49452, 0.50316, 0.54116, 0.80326}, |
| 2231 | {0.49820, 0.49988, 0.50372, 0.51196, 0.52814, 0.58822, |
| 2232 | 0.56459, 0.55661, 0.56527, 0.60326, 0.86526}, |
| 2233 | {0.56032, 0.56161, 0.56582, 0.57408, 0.59024, 0.65032, |
| 2234 | 0.62670, 0.61872, 0.62737, 0.66537, 0.92749}, |
| 2235 | {0.62240, 0.62371, 0.62792, 0.63624, 0.65236, 0.71241, |
| 2236 | 0.68881, 0.68081, 0.68947, 0.72750, 0.98941}, |
| 2237 | {0.68449, 0.68581, 0.69002, 0.69828, 0.71444, 0.77452, |
| 2238 | 0.75089, 0.74295, 0.75157, 0.78957, 1.05157}, |
| 2239 | {0.74660, 0.74790, 0.75212, 0.76036, 0.77654, 0.83748, |
| 2240 | 0.81299, 0.80501, 0.81193, 0.85168, 1.11375}, |
| 2241 | {0.80870, 0.81017, 0.81423, 0.82246, 0.83867, 0.89908, |
| 2242 | 0.87509, 0.86660, 0.87577, 0.91376, 1.17586}, |
| 2243 | {0.87080, 0.87233, 0.87632, 0.88458, 0.90074, 0.96083, |
| 2244 | 0.93718, 0.92922, 0.93787, 0.97588, 1.23794}, |
| 2245 | {0.93291, 0.93422, 0.93844, 0.94667, 0.96293, 1.02295, |
| 2246 | 0.99929, 0.99127, 0.99997, 1.03797, 1.29995}, |
| 2247 | {0.99500, 0.99645, 1.00308, 1.00877, 1.02497, 1.08504, |
| 2248 | 1.06140, 1.05343, 1.06203, 1.10006, 1.36216}, |
| 2249 | {1.05712, 1.05926, 1.06262, 1.07092, 1.08706, 1.14754, |
| 2250 | 1.12350, 1.11550, 1.12417, 1.16218, 1.42427}, |
| 2251 | {1.11921, 1.12059, 1.12473, 1.13297, 1.14916, 1.21140, |
| 2252 | 1.18560, 1.17284, 1.18625, 1.22414, 1.48629}, |
| 2253 | {1.18140, 1.18262, 1.18690, 1.19508, 1.21125, 1.27139, |
| 2254 | 1.24164, 1.23495, 1.24838, 1.28634, 1.54852}, |
| 2255 | {1.24340, 1.24473, 1.24901, 1.25732, 1.27336, 1.33358, |
| 2256 | 1.30793, 1.30179, 1.31047, 1.34848, 1.61066}, |
| 2257 | {1.30551, 1.30684, 1.31104, 1.32056, 1.33553, 1.39609, |
| 2258 | 1.37004, 1.36392, 1.37045, 1.41057, 1.67259}, |
| 2259 | {1.36755, 1.36892, 1.37315, 1.39148, 1.39755, 1.45820, |
| 2260 | 1.43215, 1.42602, 1.43467, 1.47268, 1.73477}, |
| 2261 | {1.42966, 1.43101, 1.43549, 1.45359, 1.45976, 1.52031, |
| 2262 | 1.49601, 1.48811, 1.49677, 1.53477, 1.79691}, |
| 2263 | {1.49180, 1.49321, 1.49760, 1.51570, 1.52175, 1.58185, |
| 2264 | 1.55771, 1.55023, 1.55888, 1.59672, 1.85501}, |
| 2265 | {1.55391, 1.55527, 1.55943, 1.57782, 1.58391, 1.64395, |
| 2266 | 1.62008, 1.61233, 1.62085, 1.65883, 1.92091}, |
| 2267 | {1.61599, 1.61732, 1.62154, 1.63993, 1.64612, 1.70608, |
| 2268 | 1.68237, 1.67108, 1.68301, 1.72110, 1.97931}, |
| 2269 | {1.67808, 1.67948, 1.68364, 1.70204, 1.70823, 1.76858, |
| 2270 | 1.74404, 1.73539, 1.74512, 1.78321, 2.04522}, |
| 2271 | {1.74019, 1.74152, 1.74573, 1.76415, 1.77015, 1.83040, |
| 2272 | 1.80615, 1.79366, 1.80723, 1.84509, 2.10742}, |
| 2273 | {1.80235, 1.80362, 1.80783, 1.82626, 1.83227, 1.89246, |
| 2274 | 1.86795, 1.85405, 1.86938, 1.90720, 2.16953}, |
| 2275 | {1.86442, 1.86572, 1.86994, 1.88837, 1.89438, 1.95445, |
| 2276 | 1.93006, 1.92283, 1.93148, 1.96931, 2.23147}, |
| 2277 | {1.92700, 1.92783, 1.93197, 1.95049, 1.95649, 2.01668, |
| 2278 | 1.99217, 1.98486, 1.99352, 2.03143, 2.29358}}; |
| 2279 | |
| 2280 | // Garfield simulation at UD = -2000V; vd = 1.783cm/microsec, <driftfield> = 688V/cm |
| 2281 | Float_t time2000[ktimebin][kZbin] = |
| 2282 | {{0.09176, 0.09196, 0.09296, 0.09465, 0.09704, 0.10020, |
| 2283 | 0.10427, 0.10977, 0.11825, 0.13988, 0.37774}, |
| 2284 | {0.06583, 0.06620, 0.06735, 0.06918, 0.07177, 0.07513, |
| 2285 | 0.07936, 0.08503, 0.09372, 0.11606, 0.35586}, |
| 2286 | {0.03944, 0.04001, 0.04170, 0.04431, 0.04774, 0.05184, |
| 2287 | 0.05670, 0.06296, 0.07291, 0.09893, 0.34680}, |
| 2288 | {0.01108, 0.01281, 0.01719, 0.02279, 0.02879, 0.03474, |
| 2289 | 0.04093, 0.04908, 0.06422, 0.10605, 0.36800}, |
| 2290 | {0.01114, 0.01287, 0.01720, 0.02276, 0.02863, 0.03449, |
| 2291 | 0.04073, 0.04970, 0.06774, 0.11478, 0.37179}, |
| 2292 | {0.03925, 0.03977, 0.04135, 0.04386, 0.04711, 0.05108, |
| 2293 | 0.05604, 0.06290, 0.07580, 0.10748, 0.36386}, |
| 2294 | {0.06501, 0.06536, 0.06640, 0.06814, 0.07062, 0.07398, |
| 2295 | 0.07852, 0.08487, 0.09598, 0.12405, 0.37519}, |
| 2296 | {0.09109, 0.09127, 0.09188, 0.09292, 0.09472, 0.00000, |
| 2297 | 0.10964, 0.11630, 0.12960, 0.16150, 0.41765}, |
| 2298 | {0.12898, 0.12968, 0.13209, 0.13749, 0.15034, 0.21286, |
| 2299 | 0.18088, 0.17590, 0.18591, 0.22254, 0.48315}, |
| 2300 | {0.18122, 0.18227, 0.18574, 0.19263, 0.20674, 0.26376, |
| 2301 | 0.23960, 0.23375, 0.24316, 0.28047, 0.54179}, |
| 2302 | {0.23674, 0.23784, 0.24142, 0.24847, 0.26264, 0.31810, |
| 2303 | 0.29602, 0.29008, 0.29944, 0.33675, 0.59795}, |
| 2304 | {0.29279, 0.29382, 0.29742, 0.30448, 0.31865, 0.37364, |
| 2305 | 0.35215, 0.34629, 0.35555, 0.39286, 0.65411}, |
| 2306 | {0.34875, 0.34987, 0.35346, 0.36054, 0.37472, 0.42956, |
| 2307 | 0.40825, 0.40229, 0.41167, 0.44894, 0.71033}, |
| 2308 | {0.40484, 0.40594, 0.40954, 0.41660, 0.43077, 0.48560, |
| 2309 | 0.46433, 0.45840, 0.46772, 0.50500, 0.76632}, |
| 2310 | {0.46090, 0.46201, 0.46560, 0.47267, 0.48684, 0.54167, |
| 2311 | 0.52041, 0.51449, 0.52382, 0.56108, 0.82227}, |
| 2312 | {0.51698, 0.51809, 0.52173, 0.52874, 0.54291, 0.59776, |
| 2313 | 0.57646, 0.57052, 0.57986, 0.61717, 0.87836}, |
| 2314 | {0.57306, 0.57418, 0.57782, 0.58513, 0.59899, 0.65380, |
| 2315 | 0.63255, 0.62661, 0.63594, 0.67325, 0.93460}, |
| 2316 | {0.62912, 0.63024, 0.63383, 0.64103, 0.65506, 0.70988, |
| 2317 | 0.68484, 0.68267, 0.69202, 0.72878, 0.99046}, |
| 2318 | {0.68521, 0.68633, 0.68990, 0.69699, 0.71115, 0.76595, |
| 2319 | 0.74468, 0.73872, 0.74814, 0.78538, 1.04674}, |
| 2320 | {0.74127, 0.74239, 0.74605, 0.75303, 0.77022, 0.82204, |
| 2321 | 0.80078, 0.79484, 0.80416, 0.84147, 1.10261}, |
| 2322 | {0.79736, 0.79846, 0.80206, 0.80947, 0.82330, 0.87813, |
| 2323 | 0.85688, 0.85087, 0.86023, 0.89752, 1.15874}, |
| 2324 | {0.85342, 0.85454, 0.85815, 0.86519, 0.87936, 0.93417, |
| 2325 | 0.91293, 0.90428, 0.91631, 0.95360, 1.20760}, |
| 2326 | {0.90949, 0.91061, 0.91423, 0.92128, 0.93544, 0.99026, |
| 2327 | 0.96807, 0.96305, 0.97239, 1.00967, 1.27078}, |
| 2328 | {0.96556, 0.96669, 0.97111, 0.97734, 0.99151, 1.04664, |
| 2329 | 1.02508, 1.01879, 1.02846, 1.06167, 1.32695}, |
| 2330 | {1.02167, 1.02279, 1.02656, 1.03341, 1.04759, 1.10242, |
| 2331 | 1.08115, 1.07003, 1.08453, 1.12184, 1.38304}, |
| 2332 | {1.07776, 1.07883, 1.08242, 1.08950, 1.10384, 1.16422, |
| 2333 | 1.13725, 1.13133, 1.14061, 1.17793, 1.43910}, |
| 2334 | {1.13379, 1.13492, 1.13864, 1.14567, 1.15973, 1.21455, |
| 2335 | 1.19323, 1.18734, 1.19668, 1.23401, 1.49528}, |
| 2336 | {1.18988, 1.19098, 1.19457, 1.20164, 1.21582, 1.27064, |
| 2337 | 1.24937, 1.24044, 1.25275, 1.29004, 1.55137}, |
| 2338 | {1.24592, 1.24706, 1.25087, 1.25773, 1.27188, 1.32670, |
| 2339 | 1.30544, 1.29953, 1.30883, 1.34613, 1.60743}, |
| 2340 | {1.30202, 1.30313, 1.30673, 1.31381, 1.32797, 1.38278, |
| 2341 | 1.36151, 1.35167, 1.36490, 1.40221, 1.66306}, |
| 2342 | {1.35809, 1.35921, 1.36282, 1.36986, 1.38403, 1.43888, |
| 2343 | 1.41760, 1.41174, 1.42083, 1.45830, 1.71915}, |
| 2344 | {1.41419, 1.41528, 1.41890, 1.42595, 1.44011, 1.49496, |
| 2345 | 1.47368, 1.46769, 1.47706, 1.51436, 1.77523}, |
| 2346 | {1.47131, 1.47141, 1.47494, 1.48850, 1.49620, 1.55137, |
| 2347 | 1.52977, 1.51820, 1.53315, 1.57042, 1.83158}, |
| 2348 | {1.52635, 1.52750, 1.53103, 1.53814, 1.55228, 1.60736, |
| 2349 | 1.58503, 1.57986, 1.58920, 1.62649, 1.88767}, |
| 2350 | {1.58418, 1.58355, 1.58711, 1.59526, 1.60833, 1.66316, |
| 2351 | 1.63345, 1.63261, 1.64556, 1.68204, 1.94359}, |
| 2352 | {1.64027, 1.63958, 1.64489, 1.65024, 1.66443, 1.71925, |
| 2353 | 1.69794, 1.69201, 1.70143, 1.73865, 1.99968}, |
| 2354 | {1.69450, 1.69566, 1.69940, 1.70697, 1.71841, 1.77819, |
| 2355 | 1.75396, 1.74814, 1.75743, 1.79083, 2.05427}, |
| 2356 | {1.75054, 1.75221, 1.75527, 1.76306, 1.77662, 1.83428, |
| 2357 | 1.81006, 1.81173, 1.81345, 1.85076, 2.10289}}; |
| 2358 | |
| 2359 | // Garfield simulation at UD = -2100V; vd = 1.959cm/microsec, <driftfield> = 720V/cm |
| 2360 | Float_t time2100[ktimebin][kZbin] = |
| 2361 | {{0.09160, 0.09194, 0.09294, 0.09462, 0.09701, 0.10017, |
| 2362 | 0.10424, 0.10974, 0.11823, 0.13988, 0.37762}, |
| 2363 | {0.06585, 0.06619, 0.06731, 0.06916, 0.07174, 0.07509, |
| 2364 | 0.07933, 0.08500, 0.09370, 0.11609, 0.35565}, |
| 2365 | {0.03960, 0.04001, 0.04171, 0.04430, 0.04774, 0.05182, |
| 2366 | 0.05668, 0.06294, 0.07291, 0.09896, 0.34676}, |
| 2367 | {0.01109, 0.01280, 0.01716, 0.02279, 0.02876, 0.03474, |
| 2368 | 0.04096, 0.04908, 0.06424, 0.10612, 0.36790}, |
| 2369 | {0.01114, 0.01285, 0.01719, 0.02287, 0.02863, 0.03449, |
| 2370 | 0.04073, 0.04964, 0.06759, 0.11446, 0.37162}, |
| 2371 | {0.03922, 0.03977, 0.04146, 0.04386, 0.04711, 0.05109, |
| 2372 | 0.05605, 0.06287, 0.07575, 0.10713, 0.36298}, |
| 2373 | {0.06504, 0.06538, 0.06641, 0.06818, 0.07064, 0.07426, |
| 2374 | 0.07852, 0.08483, 0.09581, 0.12363, 0.37424}, |
| 2375 | {0.09103, 0.09129, 0.09186, 0.09291, 0.09476, 0.00000, |
| 2376 | 0.10923, 0.11578, 0.12873, 0.16005, 0.41525}, |
| 2377 | {0.12723, 0.12777, 0.12988, 0.13458, 0.14579, 0.20264, |
| 2378 | 0.17421, 0.17078, 0.18132, 0.21708, 0.47699}, |
| 2379 | {0.17508, 0.17601, 0.17897, 0.18487, 0.19698, 0.24881, |
| 2380 | 0.22737, 0.22337, 0.23348, 0.27000, 0.53032}, |
| 2381 | {0.22571, 0.22663, 0.22969, 0.23570, 0.24787, 0.29826, |
| 2382 | 0.27871, 0.27462, 0.28471, 0.32122, 0.58166}, |
| 2383 | {0.27664, 0.27759, 0.28067, 0.28669, 0.29891, 0.34898, |
| 2384 | 0.32982, 0.32570, 0.33576, 0.37229, 0.63268}, |
| 2385 | {0.32766, 0.32862, 0.33170, 0.33778, 0.34988, 0.39973, |
| 2386 | 0.38088, 0.37675, 0.38680, 0.42333, 0.68159}, |
| 2387 | {0.37872, 0.37966, 0.38275, 0.38875, 0.40093, 0.45073, |
| 2388 | 0.43192, 0.42780, 0.43786, 0.47438, 0.73480}, |
| 2389 | {0.42974, 0.43070, 0.43378, 0.43982, 0.45196, 0.50177, |
| 2390 | 0.48297, 0.47884, 0.48889, 0.52544, 0.78581}, |
| 2391 | {0.48081, 0.48175, 0.48482, 0.49084, 0.50302, 0.55290, |
| 2392 | 0.53398, 0.52988, 0.53994, 0.57647, 0.83687}, |
| 2393 | {0.53645, 0.53295, 0.53586, 0.54188, 0.55408, 0.60398, |
| 2394 | 0.58504, 0.58092, 0.59100, 0.62768, 0.88773}, |
| 2395 | {0.58345, 0.58409, 0.58690, 0.59292, 0.60510, 0.65562, |
| 2396 | 0.63609, 0.63197, 0.64203, 0.67856, 0.93907}, |
| 2397 | {0.63397, 0.63490, 0.63795, 0.64403, 0.65613, 0.70612, |
| 2398 | 0.68714, 0.68301, 0.69294, 0.72955, 0.99000}, |
| 2399 | {0.68496, 0.68592, 0.68899, 0.69504, 0.70733, 0.75708, |
| 2400 | 0.73818, 0.73405, 0.74412, 0.78064, 1.04100}, |
| 2401 | {0.73600, 0.73696, 0.74003, 0.74624, 0.75828, 0.80805, |
| 2402 | 0.78904, 0.78512, 0.79517, 0.83152, 1.09205}, |
| 2403 | {0.78709, 0.78801, 0.79108, 0.79709, 0.80931, 0.85906, |
| 2404 | 0.84027, 0.83614, 0.84621, 0.88269, 1.14058}, |
| 2405 | {0.83808, 0.83905, 0.84215, 0.84816, 0.86031, 0.91011, |
| 2406 | 0.89139, 0.88718, 0.89725, 0.93377, 1.19413}, |
| 2407 | {0.88916, 0.89010, 0.89320, 0.89920, 0.91136, 0.96117, |
| 2408 | 0.94235, 0.93822, 0.94828, 0.98480, 1.24538}, |
| 2409 | {0.94036, 0.94113, 0.94422, 0.95023, 0.96241, 1.01220, |
| 2410 | 0.99310, 0.98927, 0.99933, 1.03585, 1.29629}, |
| 2411 | {0.99139, 0.99220, 0.99525, 1.00127, 1.01344, 1.06324, |
| 2412 | 1.04451, 1.04033, 1.04836, 1.08690, 1.34727}, |
| 2413 | {1.04261, 1.04325, 1.04628, 1.05232, 1.06448, 1.12090, |
| 2414 | 1.09546, 1.09136, 1.10142, 1.13795, 1.39831}, |
| 2415 | {1.09331, 1.09429, 1.09742, 1.10336, 1.11557, 1.16547, |
| 2416 | 1.14658, 1.13642, 1.15247, 1.18898, 1.44936}, |
| 2417 | {1.14436, 1.14539, 1.14847, 1.15443, 1.16662, 1.21794, |
| 2418 | 1.19763, 1.19329, 1.20349, 1.23956, 1.50043}, |
| 2419 | {1.19533, 1.19651, 1.19943, 1.20548, 1.21666, 1.26753, |
| 2420 | 1.24862, 1.24434, 1.25455, 1.29106, 1.55142}, |
| 2421 | {1.24638, 1.24756, 1.25046, 1.25648, 1.26764, 1.31858, |
| 2422 | 1.29967, 1.29538, 1.30499, 1.34211, 1.60250}, |
| 2423 | {1.29747, 1.29847, 1.30175, 1.30753, 1.31869, 1.36969, |
| 2424 | 1.35069, 1.34656, 1.35663, 1.39316, 1.64644}, |
| 2425 | {1.35537, 1.34952, 1.35255, 1.35869, 1.36973, 1.41387, |
| 2426 | 1.40173, 1.39761, 1.40768, 1.44396, 1.70238}, |
| 2427 | {1.39956, 1.40056, 1.40380, 1.40961, 1.42178, 1.46492, |
| 2428 | 1.45278, 1.45423, 1.45872, 1.49522, 1.75557}, |
| 2429 | {1.45080, 1.45159, 1.45463, 1.46109, 1.47287, 1.52263, |
| 2430 | 1.50382, 1.50050, 1.50977, 1.54502, 1.80670}, |
| 2431 | {1.50165, 1.50264, 1.50570, 1.51214, 1.52233, 1.57370, |
| 2432 | 1.55484, 1.55155, 1.56080, 1.59731, 1.85778}, |
| 2433 | {1.55269, 1.55364, 1.55675, 1.56274, 1.57491, 1.62598, |
| 2434 | 1.60590, 1.60259, 1.61185, 1.64836, 1.90883}, |
| 2435 | {1.60368, 1.60469, 1.60779, 1.61373, 1.62596, 1.67738, |
| 2436 | 1.65651, 1.65249, 1.66290, 1.69936, 1.95959}}; |
| 2437 | |
| 2438 | // Garfield simulation at UD = -2200V; vd = 2.134cm/microsec, <driftfield> = 753V/cm |
| 2439 | Float_t time2200[ktimebin][kZbin] = |
| 2440 | {{0.09162, 0.09194, 0.09292, 0.09460, 0.09702, 0.10014, |
| 2441 | 0.10421, 0.10971, 0.11820, 0.13990, 0.37745}, |
| 2442 | {0.06581, 0.06618, 0.06730, 0.06915, 0.07173, 0.07507, |
| 2443 | 0.07931, 0.08497, 0.09368, 0.11609, 0.35560}, |
| 2444 | {0.03947, 0.04001, 0.04167, 0.04429, 0.04772, 0.05183, |
| 2445 | 0.05667, 0.06293, 0.07292, 0.09900, 0.34673}, |
| 2446 | {0.01111, 0.01280, 0.01716, 0.02279, 0.02876, 0.03473, |
| 2447 | 0.04091, 0.04907, 0.06426, 0.10620, 0.36766}, |
| 2448 | {0.01113, 0.01285, 0.01719, 0.02276, 0.02863, 0.03452, |
| 2449 | 0.04076, 0.04960, 0.06745, 0.11419, 0.37139}, |
| 2450 | {0.03923, 0.03978, 0.04137, 0.04387, 0.04713, 0.05110, |
| 2451 | 0.05605, 0.06284, 0.07551, 0.10677, 0.36210}, |
| 2452 | {0.06505, 0.06540, 0.06644, 0.06820, 0.07069, 0.07401, |
| 2453 | 0.07852, 0.08479, 0.09565, 0.12325, 0.37313}, |
| 2454 | {0.09107, 0.09127, 0.09181, 0.09291, 0.09474, 0.00000, |
| 2455 | 0.10883, 0.11528, 0.12789, 0.15865, 0.41313}, |
| 2456 | {0.12559, 0.12622, 0.12800, 0.13206, 0.14166, 0.19331, |
| 2457 | 0.16832, 0.16632, 0.17724, 0.21218, 0.47098}, |
| 2458 | {0.16992, 0.17070, 0.17325, 0.17831, 0.18871, 0.23557, |
| 2459 | 0.21690, 0.21451, 0.22514, 0.26082, 0.52034}, |
| 2460 | {0.21640, 0.21722, 0.21987, 0.22500, 0.23540, 0.28097, |
| 2461 | 0.26399, 0.26154, 0.27214, 0.30784, 0.56734}, |
| 2462 | {0.26318, 0.26400, 0.26679, 0.27181, 0.28220, 0.32739, |
| 2463 | 0.31090, 0.30842, 0.31902, 0.35474, 0.61415}, |
| 2464 | {0.31001, 0.31085, 0.31348, 0.31866, 0.32903, 0.37412, |
| 2465 | 0.35777, 0.35546, 0.36588, 0.40159, 0.66103}, |
| 2466 | {0.35687, 0.35769, 0.36033, 0.36556, 0.37588, 0.42094, |
| 2467 | 0.40523, 0.40214, 0.41273, 0.44841, 0.70785}, |
| 2468 | {0.40372, 0.40457, 0.40723, 0.41234, 0.42273, 0.46778, |
| 2469 | 0.45148, 0.44903, 0.45961, 0.49526, 0.75486}, |
| 2470 | {0.45062, 0.45139, 0.45404, 0.45966, 0.46958, 0.51470, |
| 2471 | 0.49833, 0.49584, 0.50644, 0.54211, 0.80160}, |
| 2472 | {0.49742, 0.49825, 0.50088, 0.50605, 0.51644, 0.56148, |
| 2473 | 0.54518, 0.54270, 0.55330, 0.58897, 0.84854}, |
| 2474 | {0.54427, 0.54510, 0.54774, 0.55290, 0.56329, 0.60846, |
| 2475 | 0.59203, 0.58955, 0.60014, 0.63578, 0.89528}, |
| 2476 | {0.59119, 0.59199, 0.59471, 0.59975, 0.61014, 0.65533, |
| 2477 | 0.63889, 0.63636, 0.64699, 0.68269, 0.94197}, |
| 2478 | {0.63866, 0.63880, 0.64145, 0.64664, 0.65701, 0.70639, |
| 2479 | 0.68574, 0.68325, 0.69385, 0.72949, 0.98900}, |
| 2480 | {0.68483, 0.68566, 0.68831, 0.69347, 0.70386, 0.74890, |
| 2481 | 0.73260, 0.73010, 0.74069, 0.77638, 1.03320}, |
| 2482 | {0.73168, 0.73255, 0.73515, 0.74031, 0.75072, 0.79576, |
| 2483 | 0.77117, 0.77501, 0.78755, 0.82318, 1.08006}, |
| 2484 | {0.77854, 0.78310, 0.78200, 0.79525, 0.79756, 0.84281, |
| 2485 | 0.81803, 0.82393, 0.83441, 0.87008, 1.12692}, |
| 2486 | {0.82541, 0.82642, 0.82916, 0.83528, 0.84442, 0.89086, |
| 2487 | 0.87315, 0.87079, 0.88125, 0.91694, 1.17648}, |
| 2488 | {0.87226, 0.87308, 0.87602, 0.88086, 0.89128, 0.93772, |
| 2489 | 0.92001, 0.91751, 0.92811, 0.95587, 1.22328}, |
| 2490 | {0.91921, 0.91994, 0.92256, 0.92772, 0.94713, 0.98566, |
| 2491 | 0.96690, 0.96436, 0.97495, 1.01064, 1.26882}, |
| 2492 | {0.96790, 0.96679, 0.96941, 0.97463, 0.99399, 1.03001, |
| 2493 | 1.01376, 1.01112, 1.02181, 1.05749, 1.31568}, |
| 2494 | {1.01278, 1.01390, 1.01674, 1.02147, 1.03182, 1.07820, |
| 2495 | 1.06056, 1.05798, 1.06867, 1.10433, 1.36390}, |
| 2496 | {1.05964, 1.06076, 1.06331, 1.06833, 1.07870, 1.13297, |
| 2497 | 1.10742, 1.10520, 1.11543, 1.15120, 1.41069}, |
| 2498 | {1.10664, 1.10762, 1.10997, 1.11519, 1.12556, 1.17531, |
| 2499 | 1.15427, 1.14620, 1.16229, 1.19805, 1.45758}, |
| 2500 | {1.15352, 1.15421, 1.15683, 1.16218, 1.17242, 1.21910, |
| 2501 | 1.20035, 1.19863, 1.20579, 1.24473, 1.50412}, |
| 2502 | {1.20019, 1.20115, 1.20369, 1.20892, 1.21928, 1.26913, |
| 2503 | 1.24721, 1.24549, 1.25605, 1.29159, 1.54920}, |
| 2504 | {1.24707, 1.24846, 1.25052, 1.25602, 1.26608, 1.31558, |
| 2505 | 1.29448, 1.29232, 1.30293, 1.33675, 1.59798}, |
| 2506 | {1.29391, 1.29475, 1.29738, 1.30255, 1.31294, 1.36244, |
| 2507 | 1.34167, 1.33918, 1.34979, 1.38229, 1.64496}, |
| 2508 | {1.34078, 1.34304, 1.34424, 1.35565, 1.35980, 1.40930, |
| 2509 | 1.38853, 1.38229, 1.39664, 1.42863, 1.69162}, |
| 2510 | {1.38762, 1.38847, 1.39110, 1.39627, 1.40666, 1.45183, |
| 2511 | 1.43539, 1.43289, 1.44348, 1.47549, 1.73876}, |
| 2512 | {1.43524, 1.43533, 1.43796, 1.44310, 1.45371, 1.49305, |
| 2513 | 1.48224, 1.47941, 1.49034, 1.52601, 1.78552}, |
| 2514 | {1.48122, 1.48219, 1.48482, 1.48991, 1.50030, 1.53991, |
| 2515 | 1.52898, 1.52653, 1.53653, 1.57282, 1.82386}}; |
| 2516 | |
| 4d18a639 |
2517 | if (fTimeStruct1) { |
| 2518 | delete [] fTimeStruct1; |
| 2519 | } |
| 2520 | fTimeStruct1 = new Float_t[ktimebin*kZbin]; |
| 2521 | |
| 2522 | if (fTimeStruct2) { |
| 2523 | delete [] fTimeStruct2; |
| 2524 | } |
| 2525 | fTimeStruct2 = new Float_t[ktimebin*kZbin]; |
| 2526 | |
| 2527 | for (Int_t ctrt = 0; ctrt < ktimebin; ctrt++) { |
| 2528 | for (Int_t ctrz = 0; ctrz < kZbin; ctrz++) { |
| 2529 | if (vdrift > fVDsmp[6]) { |
| 2530 | fTimeStruct1[ctrt+ctrz*ktimebin] = time2100[ctrt][ctrz]; |
| 2531 | fTimeStruct2[ctrt+ctrz*ktimebin] = time2200[ctrt][ctrz]; |
| 2532 | fVDlo = fVDsmp[6]; |
| 2533 | fVDhi = fVDsmp[7]; |
| 2534 | } |
| 2535 | else if (vdrift > fVDsmp[5]) { |
| 2536 | fTimeStruct1[ctrt+ctrz*ktimebin] = time2000[ctrt][ctrz]; |
| 2537 | fTimeStruct2[ctrt+ctrz*ktimebin] = time2100[ctrt][ctrz]; |
| 2538 | fVDlo = fVDsmp[5]; |
| 2539 | fVDhi = fVDsmp[6]; |
| 2540 | } |
| 2541 | else if (vdrift > fVDsmp[4]) { |
| 2542 | fTimeStruct1[ctrt+ctrz*ktimebin] = time1900[ctrt][ctrz]; |
| 2543 | fTimeStruct2[ctrt+ctrz*ktimebin] = time2000[ctrt][ctrz]; |
| 2544 | fVDlo = fVDsmp[4]; |
| 2545 | fVDhi = fVDsmp[5]; |
| 2546 | } |
| 2547 | else if (vdrift > fVDsmp[3]) { |
| 2548 | fTimeStruct1[ctrt+ctrz*ktimebin] = time1800[ctrt][ctrz]; |
| 2549 | fTimeStruct2[ctrt+ctrz*ktimebin] = time1900[ctrt][ctrz]; |
| 2550 | fVDlo = fVDsmp[3]; |
| 2551 | fVDhi = fVDsmp[4]; |
| 2552 | } |
| 2553 | else if (vdrift > fVDsmp[2]) { |
| 2554 | fTimeStruct1[ctrt+ctrz*ktimebin] = time1700[ctrt][ctrz]; |
| 2555 | fTimeStruct2[ctrt+ctrz*ktimebin] = time1800[ctrt][ctrz]; |
| 2556 | fVDlo = fVDsmp[2]; |
| 2557 | fVDhi = fVDsmp[3]; |
| 2558 | } |
| 2559 | else if (vdrift > fVDsmp[1]) { |
| 2560 | fTimeStruct1[ctrt+ctrz*ktimebin] = time1600[ctrt][ctrz]; |
| 2561 | fTimeStruct2[ctrt+ctrz*ktimebin] = time1700[ctrt][ctrz]; |
| 2562 | fVDlo = fVDsmp[1]; |
| 2563 | fVDhi = fVDsmp[2]; |
| 2564 | } |
| 2565 | else if (vdrift > (fVDsmp[0] - 1.0e-5)) { |
| 2566 | fTimeStruct1[ctrt+ctrz*ktimebin] = time1500[ctrt][ctrz]; |
| 2567 | fTimeStruct2[ctrt+ctrz*ktimebin] = time1600[ctrt][ctrz]; |
| 2568 | fVDlo = fVDsmp[0]; |
| 2569 | fVDhi = fVDsmp[1]; |
| 3551db50 |
2570 | } |
| 2571 | } |
| 2572 | } |
| 4d18a639 |
2573 | |
| 3551db50 |
2574 | } |
| 2575 | |
| 2576 | //_____________________________________________________________________________ |
| 2577 | void AliTRDdigitizer::RecalcDiffusion(Float_t vdrift) |
| 2578 | { |
| 4d18a639 |
2579 | // |
| 2580 | // Recalculates the diffusion parameters |
| 2581 | // |
| 0dbeb81c |
2582 | // The B=0 case is not really included here. |
| 2583 | // Should be revisited! |
| 2584 | // |
| 4d18a639 |
2585 | |
| 2586 | if (vdrift == fDiffLastVdrift) { |
| 3551db50 |
2587 | return; |
| 4d18a639 |
2588 | } |
| 7754cd1f |
2589 | |
| 4d18a639 |
2590 | AliTRDSimParam *simParam = AliTRDSimParam::Instance(); |
| 9afbd7de |
2591 | if (!simParam) { |
| 4329977a |
2592 | AliFatal("Could not get simulation parameters"); |
| 3551db50 |
2593 | return; |
| 2594 | } |
| 2595 | |
| 4d18a639 |
2596 | AliTRDCommonParam *commonParam = AliTRDCommonParam::Instance(); |
| 9afbd7de |
2597 | if (!commonParam) { |
| 4329977a |
2598 | AliFatal("Could not get common parameters"); |
| 3551db50 |
2599 | return; |
| 2600 | } |
| 2601 | |
| 4d18a639 |
2602 | AliTRDcalibDB *calibration = AliTRDcalibDB::Instance(); |
| 9afbd7de |
2603 | if (!calibration) { |
| 4329977a |
2604 | AliFatal("Could not get calibration object"); |
| 3551db50 |
2605 | return; |
| 2606 | } |
| 2607 | |
| 4e009ce4 |
2608 | // The magnetic field strength |
| 1b95a37b |
2609 | Double_t x[3] = { 0.0, 0.0, 0.0 }; |
| 2610 | Double_t b[3]; |
| 4e009ce4 |
2611 | gAlice->Field(x,b); // b[] is in kilo Gauss |
| 1b95a37b |
2612 | Float_t field = b[2] * 0.1; // Tesla |
| 1b95a37b |
2613 | |
| 4d18a639 |
2614 | fDiffLastVdrift = vdrift; |
| 3551db50 |
2615 | |
| 9afbd7de |
2616 | // DiffusionL |
| 4d18a639 |
2617 | const Int_t kNbL = 5; |
| 2618 | Float_t p0L[kNbL] = { 0.007440, 0.007493, 0.007513, 0.007672, 0.007831 }; |
| 2619 | Float_t p1L[kNbL] = { 0.019252, 0.018912, 0.018636, 0.018012, 0.017343 }; |
| 2620 | Float_t p2L[kNbL] = { -0.005042, -0.004926, -0.004867, -0.004650, -0.004424 }; |
| 2621 | Float_t p3L[kNbL] = { 0.000195, 0.000189, 0.000195, 0.000182, 0.000169 }; |
| 2622 | |
| 2623 | Int_t ibL = ((Int_t) (10 * (field - 0.15))); |
| 2624 | ibL = TMath::Max( 0,ibL); |
| 2625 | ibL = TMath::Min(kNbL,ibL); |
| 2626 | |
| 2627 | fDiffusionL = p0L[ibL] |
| 2628 | + p1L[ibL] * vdrift |
| 2629 | + p2L[ibL] * vdrift*vdrift |
| 2630 | + p3L[ibL] * vdrift*vdrift*vdrift; |
| 3551db50 |
2631 | |
| 9afbd7de |
2632 | // DiffusionT |
| 4d18a639 |
2633 | const Int_t kNbT = 5; |
| 2634 | Float_t p0T[kNbT] = { 0.009550, 0.009599, 0.009674, 0.009757, 0.009850 }; |
| 2635 | Float_t p1T[kNbT] = { 0.006667, 0.006539, 0.006359, 0.006153, 0.005925 }; |
| 2636 | Float_t p2T[kNbT] = { -0.000853, -0.000798, -0.000721, -0.000635, -0.000541 }; |
| 2637 | Float_t p3T[kNbT] = { 0.000131, 0.000122, 0.000111, 0.000098, 0.000085 }; |
| 2638 | |
| 2639 | Int_t ibT= ((Int_t) (10 * (field - 0.15))); |
| 2640 | ibT = TMath::Max( 0,ibT); |
| 2641 | ibT = TMath::Min(kNbT,ibT); |
| 2642 | |
| 2643 | fDiffusionT = p0T[ibT] |
| 2644 | + p1T[ibT] * vdrift |
| 2645 | + p2T[ibT] * vdrift*vdrift |
| 2646 | + p3T[ibT] * vdrift*vdrift*vdrift; |
| 3551db50 |
2647 | |
| 9afbd7de |
2648 | // OmegaTau |
| 4e009ce4 |
2649 | fOmegaTau = calibration->GetOmegaTau(vdrift,field); |
| 1b95a37b |
2650 | |
| 9afbd7de |
2651 | // Lorentzfactor |
| 4d18a639 |
2652 | if (commonParam->ExBOn()) { |
| 2653 | fLorentzFactor = 1.0 / (1.0 + fOmegaTau*fOmegaTau); |
| 2654 | } |
| 2655 | else { |
| 2656 | fLorentzFactor = 1.0; |
| 3551db50 |
2657 | } |
| 9afbd7de |
2658 | |
| 3551db50 |
2659 | } |
| 2660 | |
| 2661 | //_____________________________________________________________________________ |
| 2662 | Float_t AliTRDdigitizer::GetDiffusionL(Float_t vdrift) |
| 2663 | { |
| 2664 | // |
| 2665 | // Returns the longitudinal diffusion coefficient for a given drift |
| 2666 | // velocity <vd> and a B-field <b> for Xe/CO2 (15%). |
| 2667 | // The values are according to a GARFIELD simulation. |
| 2668 | // |
| 2669 | |
| 2670 | RecalcDiffusion(vdrift); |
| 4d18a639 |
2671 | |
| 2672 | return fDiffusionL; |
| 9afbd7de |
2673 | |
| 3551db50 |
2674 | } |
| 2675 | |
| 2676 | //_____________________________________________________________________________ |
| 2677 | Float_t AliTRDdigitizer::GetDiffusionT(Float_t vdrift) |
| 2678 | { |
| 2679 | // |
| 2680 | // Returns the transverse diffusion coefficient for a given drift |
| 2681 | // velocity <vd> and a B-field <b> for Xe/CO2 (15%). |
| 2682 | // The values are according to a GARFIELD simulation. |
| 2683 | // |
| 2684 | |
| 2685 | RecalcDiffusion(vdrift); |
| 4d18a639 |
2686 | |
| 2687 | return fDiffusionT; |
| 9afbd7de |
2688 | |
| 3551db50 |
2689 | } |
| 2690 | |
| 2691 | //_____________________________________________________________________________ |
| 4329977a |
2692 | Int_t AliTRDdigitizer::Diffusion(Float_t vdrift, Double_t absdriftlength |
| 2693 | , Double_t &lRow, Double_t &lCol, Double_t &lTime) |
| 3551db50 |
2694 | { |
| 2695 | // |
| 4329977a |
2696 | // Applies the diffusion smearing to the position of a single electron. |
| 2697 | // Depends on absolute drift length. |
| 3551db50 |
2698 | // |
| 2699 | |
| 2700 | RecalcDiffusion(vdrift); |
| 2701 | |
| 4329977a |
2702 | Float_t driftSqrt = TMath::Sqrt(absdriftlength); |
| 4d18a639 |
2703 | Float_t sigmaT = driftSqrt * fDiffusionT; |
| 2704 | Float_t sigmaL = driftSqrt * fDiffusionL; |
| 4329977a |
2705 | lRow = gRandom->Gaus(lRow ,sigmaT); |
| 2706 | lCol = gRandom->Gaus(lCol ,sigmaT * GetLorentzFactor(vdrift)); |
| 2707 | lTime = gRandom->Gaus(lTime,sigmaL * GetLorentzFactor(vdrift)); |
| 3551db50 |
2708 | |
| 2709 | return 1; |
| 9afbd7de |
2710 | |
| 3551db50 |
2711 | } |
| 2712 | |
| 2713 | //_____________________________________________________________________________ |
| 2714 | Float_t AliTRDdigitizer::GetLorentzFactor(Float_t vd) |
| 2715 | { |
| 9afbd7de |
2716 | // |
| 2717 | // Returns the recalculated Lorentz factor |
| 2718 | // |
| 2719 | |
| 3551db50 |
2720 | RecalcDiffusion(vd); |
| 4d18a639 |
2721 | |
| 2722 | return fLorentzFactor; |
| 9afbd7de |
2723 | |
| 3551db50 |
2724 | } |
| 2725 | |
| 2726 | //_____________________________________________________________________________ |
| 4329977a |
2727 | Int_t AliTRDdigitizer::ExB(Float_t vdrift, Double_t driftlength, Double_t &lCol) |
| 3551db50 |
2728 | { |
| 2729 | // |
| 4329977a |
2730 | // Applies E x B effects to the position of a single electron. |
| 2731 | // Depends on signed drift length. |
| 3551db50 |
2732 | // |
| 2733 | |
| 2734 | RecalcDiffusion(vdrift); |
| 4329977a |
2735 | |
| 2736 | lCol = lCol + fOmegaTau * driftlength; |
| 3551db50 |
2737 | |
| 2738 | return 1; |
| 9afbd7de |
2739 | |
| 3551db50 |
2740 | } |
git://git.uio.no / u / mrichter / AliRoot.git / blame