Update the TPC quality info after the propagation back (M.Ivanov)
[u/mrichter/AliRoot.git] / TRD / AliTRDdigitizer.cxx
CommitLineData
f7336fa3 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
15
88cb7938 16/* $Id$ */
f7336fa3 17
18///////////////////////////////////////////////////////////////////////////////
19// //
20// Creates and handles digits from TRD hits //
abaf1f1d 21// Author: C. Blume (C.Blume@gsi.de) //
f7336fa3 22// //
23// The following effects are included: //
24// - Diffusion //
25// - ExB effects //
26// - Gas gain including fluctuations //
27// - Pad-response (simple Gaussian approximation) //
abaf1f1d 28// - Time-response //
f7336fa3 29// - Electronics noise //
30// - Electronics gain //
31// - Digitization //
32// - ADC threshold //
33// The corresponding parameter can be adjusted via the various //
34// Set-functions. If these parameters are not explicitly set, default //
35// values are used (see Init-function). //
abaf1f1d 36// As an example on how to use this class to produce digits from hits //
37// have a look at the macro hits2digits.C //
38// The production of summable digits is demonstrated in hits2sdigits.C //
39// and the subsequent conversion of the s-digits into normal digits is //
40// explained in sdigits2digits.C. //
f7336fa3 41// //
42///////////////////////////////////////////////////////////////////////////////
43
6798b56e 44#include <stdlib.h>
45
f7336fa3 46#include <TMath.h>
47#include <TVector.h>
48#include <TRandom.h>
94de3818 49#include <TROOT.h>
50#include <TTree.h>
793ff80c 51#include <TFile.h>
52#include <TF1.h>
abaf1f1d 53#include <TList.h>
85cbec76 54#include <TTask.h>
793ff80c 55
56#include "AliRun.h"
88cb7938 57#include "AliRunLoader.h"
58#include "AliLoader.h"
59#include "AliConfig.h"
db30bf0f 60#include "AliMagF.h"
85cbec76 61#include "AliRunDigitizer.h"
88cb7938 62#include "AliRunLoader.h"
63#include "AliLoader.h"
f7336fa3 64
65#include "AliTRD.h"
793ff80c 66#include "AliTRDhit.h"
f7336fa3 67#include "AliTRDdigitizer.h"
da581aea 68#include "AliTRDdataArrayI.h"
69#include "AliTRDdataArrayF.h"
793ff80c 70#include "AliTRDsegmentArray.h"
da581aea 71#include "AliTRDdigitsManager.h"
793ff80c 72#include "AliTRDgeometry.h"
4487dad0 73#include "AliTRDparameter.h"
a5cadd36 74#include "AliTRDpadPlane.h"
3551db50 75#include "AliTRDcalibDB.h"
76#include "AliTRDSimParam.h"
77#include "AliTRDCommonParam.h"
f7336fa3 78
79ClassImp(AliTRDdigitizer)
80
81//_____________________________________________________________________________
85cbec76 82AliTRDdigitizer::AliTRDdigitizer()
f7336fa3 83{
84 //
85 // AliTRDdigitizer default constructor
86 //
87
85a5290f 88 fRunLoader = 0;
4487dad0 89 fDigitsManager = 0;
4487dad0 90 fSDigitsManager = 0;
85a5290f 91 fSDigitsManagerList = 0;
4487dad0 92 fTRD = 0;
93 fGeo = 0;
3551db50 94 fPar = 0;
abaf1f1d 95 fEvent = 0;
85a5290f 96 fMasks = 0;
abaf1f1d 97 fCompress = kTRUE;
e23fbb27 98 fDebug = 0;
abaf1f1d 99 fSDigits = kFALSE;
100 fSDigitsScale = 0.0;
4487dad0 101 fMergeSignalOnly = kFALSE;
0c24ba98 102 fSimpleSim = kFALSE;
103 fSimpleDet = 0;
104
3551db50 105 fTimeStructInfo.fLastVdrift = 0;
106 fTimeStructInfo.fTimeStruct1 = 0;
107 fTimeStructInfo.fTimeStruct2 = 0;
108 fTimeStructInfo.fVDlo = 0;
109 fTimeStructInfo.fVDhi = 0;
110
111 fDiffusionInfo.fLastVdrift = 0;
112 fDiffusionInfo.fDiffusionT = 0.0;
113 fDiffusionInfo.fDiffusionL = 0.0;
114 fDiffusionInfo.fLorentzFactor = 0.0;
115
116 Init();
f7336fa3 117}
118
119//_____________________________________________________________________________
120AliTRDdigitizer::AliTRDdigitizer(const Text_t *name, const Text_t *title)
85cbec76 121 :AliDigitizer(name,title)
f7336fa3 122{
123 //
85cbec76 124 // AliTRDdigitizer constructor
125 //
126
3551db50 127 Init();
85cbec76 128}
129
130//_____________________________________________________________________________
131AliTRDdigitizer::AliTRDdigitizer(AliRunDigitizer *manager
132 , const Text_t *name, const Text_t *title)
133 :AliDigitizer(manager,name,title)
134{
135 //
136 // AliTRDdigitizer constructor
f7336fa3 137 //
138
3551db50 139 Init();
bfc40adc 140}
141
142//_____________________________________________________________________________
143AliTRDdigitizer::AliTRDdigitizer(AliRunDigitizer *manager)
144 :AliDigitizer(manager,"AliTRDdigitizer","TRD digitizer")
145{
146 //
147 // AliTRDdigitizer constructor
148 //
149
3551db50 150 Init();
151}
88cb7938 152
3551db50 153//_____________________________________________________________________________
154Bool_t AliTRDdigitizer::Init()
155{
85a5290f 156 fRunLoader = 0;
3551db50 157
158 //NewIO: These data members probably are not needed anymore
4487dad0 159 fDigitsManager = 0;
4487dad0 160 fSDigitsManager = 0;
85a5290f 161 fSDigitsManagerList = 0;
4487dad0 162 fTRD = 0;
163 fGeo = 0;
3551db50 164 fPar = 0;
165
166 //End NewIO comment
abaf1f1d 167 fEvent = 0;
85a5290f 168 fMasks = 0;
abaf1f1d 169 fCompress = kTRUE;
e23fbb27 170 fDebug = 0;
abaf1f1d 171 fSDigits = kFALSE;
3551db50 172 fSDigitsScale = 100.; // For the summable digits
4487dad0 173 fMergeSignalOnly = kFALSE;
0c24ba98 174 fSimpleSim = kFALSE;
175 fSimpleDet = 0;
3551db50 176
177 fTimeStructInfo.fLastVdrift = -1;
178 fTimeStructInfo.fTimeStruct1 = 0;
179 fTimeStructInfo.fTimeStruct2 = 0;
180 fTimeStructInfo.fVDlo = 0;
181 fTimeStructInfo.fVDhi = 0;
182
183 fDiffusionInfo.fLastVdrift = -1;
184 fDiffusionInfo.fDiffusionT = 0.0;
185 fDiffusionInfo.fDiffusionL = 0.0;
186 fDiffusionInfo.fLorentzFactor = 0.0;
793ff80c 187
3551db50 188 return AliDigitizer::Init();
f7336fa3 189}
190
191//_____________________________________________________________________________
73ae7b59 192AliTRDdigitizer::AliTRDdigitizer(const AliTRDdigitizer &d):AliDigitizer(d)
8230f242 193{
194 //
195 // AliTRDdigitizer copy constructor
196 //
197
dd9a6ee3 198 ((AliTRDdigitizer &) d).Copy(*this);
8230f242 199
200}
201
202//_____________________________________________________________________________
f7336fa3 203AliTRDdigitizer::~AliTRDdigitizer()
204{
8230f242 205 //
206 // AliTRDdigitizer destructor
207 //
f7336fa3 208
abaf1f1d 209 if (fDigitsManager) {
210 delete fDigitsManager;
4487dad0 211 fDigitsManager = 0;
f7336fa3 212 }
213
47b5729a 214 fSDigitsManager = 0;
f7336fa3 215
abaf1f1d 216 if (fSDigitsManagerList) {
47b5729a 217 fSDigitsManagerList->Delete();
abaf1f1d 218 delete fSDigitsManagerList;
4487dad0 219 fSDigitsManagerList = 0;
e23fbb27 220 }
221
222 if (fMasks) {
223 delete [] fMasks;
224 fMasks = 0;
225 }
226
3551db50 227 if (fTimeStructInfo.fTimeStruct1)
228 {
229 delete [] fTimeStructInfo.fTimeStruct1;
230 fTimeStructInfo.fTimeStruct1 = 0;
231 }
232
233 if (fTimeStructInfo.fTimeStruct2)
234 {
235 delete [] fTimeStructInfo.fTimeStruct2;
236 fTimeStructInfo.fTimeStruct2 = 0;
237 }
f7336fa3 238}
239
240//_____________________________________________________________________________
dd9a6ee3 241AliTRDdigitizer &AliTRDdigitizer::operator=(const AliTRDdigitizer &d)
242{
243 //
244 // Assignment operator
245 //
246
247 if (this != &d) ((AliTRDdigitizer &) d).Copy(*this);
248 return *this;
249
250}
251
252//_____________________________________________________________________________
e0d47c25 253void AliTRDdigitizer::Copy(TObject &d) const
8230f242 254{
255 //
256 // Copy function
257 //
258
85a5290f 259 ((AliTRDdigitizer &) d).fRunLoader = 0;
4487dad0 260 ((AliTRDdigitizer &) d).fDigitsManager = 0;
85a5290f 261 ((AliTRDdigitizer &) d).fSDigitsManager = 0;
262 ((AliTRDdigitizer &) d).fSDigitsManagerList = 0;
4487dad0 263 ((AliTRDdigitizer &) d).fTRD = 0;
264 ((AliTRDdigitizer &) d).fGeo = 0;
4487dad0 265 ((AliTRDdigitizer &) d).fPar = 0;
85a5290f 266 ((AliTRDdigitizer &) d).fEvent = 0;
267 ((AliTRDdigitizer &) d).fMasks = 0;
abaf1f1d 268 ((AliTRDdigitizer &) d).fCompress = fCompress;
e23fbb27 269 ((AliTRDdigitizer &) d).fDebug = fDebug ;
abaf1f1d 270 ((AliTRDdigitizer &) d).fSDigits = fSDigits;
271 ((AliTRDdigitizer &) d).fSDigitsScale = fSDigitsScale;
4487dad0 272 ((AliTRDdigitizer &) d).fMergeSignalOnly = fMergeSignalOnly;
0c24ba98 273 ((AliTRDdigitizer &) d).fSimpleSim = fSimpleSim;
274 ((AliTRDdigitizer &) d).fSimpleDet = fSimpleDet;
275
3551db50 276 AliTRDdigitizer& target = (AliTRDdigitizer &) d;
277
278 target.fDiffusionInfo = fDiffusionInfo;
279
280 // do not copy timestructs, just invalidate lastvdrift. Next time they are requested, they get recalculated
281 if (target.fTimeStructInfo.fTimeStruct1)
282 {
283 delete[] target.fTimeStructInfo.fTimeStruct1;
284 target.fTimeStructInfo.fTimeStruct1 = 0;
285 }
286 if (target.fTimeStructInfo.fTimeStruct2)
287 {
288 delete[] target.fTimeStructInfo.fTimeStruct2;
289 target.fTimeStructInfo.fTimeStruct2 = 0;
290 }
291
292 target.fTimeStructInfo.fLastVdrift = -1;
e23fbb27 293}
294
295//_____________________________________________________________________________
e23fbb27 296void AliTRDdigitizer::Exec(Option_t* option)
297{
298 //
299 // Executes the merging
300 //
301
302 Int_t iInput;
303
304 AliTRDdigitsManager *sdigitsManager;
305
306 TString optionString = option;
307 if (optionString.Contains("deb")) {
308 fDebug = 1;
309 if (optionString.Contains("2")) {
310 fDebug = 2;
311 }
312 printf("<AliTRDdigitizer::Exec> ");
313 printf("Called with debug option %d\n",fDebug);
314 }
315
cec4059b 316 // The AliRoot file is already connected by the manager
88cb7938 317 AliRunLoader* inrl;
318
319 if (gAlice)
320 {
4487dad0 321 if (fDebug > 0) {
322 printf("<AliTRDdigitizer::Exec> ");
323 printf("AliRun object found on file.\n");
324 }
88cb7938 325 }
4487dad0 326 else {
88cb7938 327 inrl = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(0));
328 inrl->LoadgAlice();
329 gAlice = inrl->GetAliRun();
330 if (!gAlice)
331 {
332 printf("<AliTRDdigitizer::Exec> ");
333 printf("Could not find AliRun object.\n");
334 return;
335 }
4487dad0 336 }
cec4059b 337
e23fbb27 338 Int_t nInput = fManager->GetNinputs();
339 fMasks = new Int_t[nInput];
340 for (iInput = 0; iInput < nInput; iInput++) {
341 fMasks[iInput] = fManager->GetMask(iInput);
342 }
e23fbb27 343
344 // Initialization
e23fbb27 345
67c67368 346 AliRunLoader* orl = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName());
347 if (InitDetector()) {
348 AliLoader* ogime = orl->GetLoader("TRDLoader");
349
350 TTree* tree = 0;
351 if (fSDigits)
352 {
353 //if we produce SDigits
354 tree = ogime->TreeS();
355 if (!tree)
356 {
357 ogime->MakeTree("S");
358 tree = ogime->TreeS();
359 }
360 }
361 else
362 {//if we produce Digits
363 tree = ogime->TreeD();
364 if (!tree)
365 {
366 ogime->MakeTree("D");
367 tree = ogime->TreeD();
368 }
369 }
370 MakeBranch(tree);
371 }
372
e23fbb27 373 for (iInput = 0; iInput < nInput; iInput++) {
374
375 if (fDebug > 0) {
376 printf("<AliTRDdigitizer::Exec> ");
377 printf("Add input stream %d\n",iInput);
378 }
379
c57e2264 380 // check if the input tree exists
88cb7938 381 inrl = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(iInput));
382 AliLoader* gime = inrl->GetLoader("TRDLoader");
383
384 TTree * treees = gime->TreeS();
385 if (treees == 0x0)
386 {
387 if (gime->LoadSDigits())
388 {
389 Error("Exec","Error Occured while loading S. Digits for input %d.",iInput);
390 return;
391 }
392 treees = gime->TreeS();
393 }
394
395 if (treees == 0x0) {
c57e2264 396 printf("<AliTRDdigitizer::Exec> ");
397 printf("Input stream %d does not exist\n",iInput);
398 return;
399 }
400
e23fbb27 401 // Read the s-digits via digits manager
402 sdigitsManager = new AliTRDdigitsManager();
403 sdigitsManager->SetDebug(fDebug);
404 sdigitsManager->SetSDigits(kTRUE);
88cb7938 405
406 AliRunLoader* rl = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(iInput));
407 AliLoader* gimme = rl->GetLoader("TRDLoader");
408 if (!gimme->TreeS()) gimme->LoadSDigits();
409 sdigitsManager->ReadDigits(gimme->TreeS());
e23fbb27 410
411 // Add the s-digits to the input list
412 AddSDigitsManager(sdigitsManager);
413
414 }
415
416 // Convert the s-digits to normal digits
417 if (fDebug > 0) {
418 printf("<AliTRDdigitizer::Exec> ");
419 printf("Do the conversion\n");
420 }
421 SDigits2Digits();
422
423 // Store the digits
424 if (fDebug > 0) {
425 printf("<AliTRDdigitizer::Exec> ");
426 printf("Write the digits\n");
427 }
88cb7938 428
e23fbb27 429 fDigitsManager->WriteDigits();
88cb7938 430
67c67368 431 //Write parameters
432 orl->CdGAFile();
bdbb05bb 433 if (!gFile->Get("TRDparameter")) GetParameter()->Write();
67c67368 434
e23fbb27 435 if (fDebug > 0) {
436 printf("<AliTRDdigitizer::Exec> ");
437 printf("Done\n");
438 }
439
b1113c6b 440 DeleteSDigitsManager();
441
e23fbb27 442}
443
444//_____________________________________________________________________________
e23fbb27 445Bool_t AliTRDdigitizer::Open(const Char_t *file, Int_t nEvent)
f7336fa3 446{
447 //
448 // Opens a ROOT-file with TRD-hits and reads in the hit-tree
449 //
450
451 // Connect the AliRoot file containing Geometry, Kine, and Hits
88cb7938 452
f540341d 453
e191bb57 454 TString evfoldname = AliConfig::GetDefaultEventFolderName();
f540341d 455 fRunLoader = AliRunLoader::GetRunLoader(evfoldname);
456 if (!fRunLoader)
e191bb57 457 fRunLoader = AliRunLoader::Open(file,AliConfig::GetDefaultEventFolderName(),
f540341d 458 "UPDATE");
88cb7938 459
460 if (!fRunLoader)
461 {
462 Error("Open","Can not open session for file %s.",file);
463 return kFALSE;
464 }
465
f540341d 466 if (!fRunLoader->GetAliRun()) fRunLoader->LoadgAlice();
88cb7938 467 gAlice = fRunLoader->GetAliRun();
468
da581aea 469 if (gAlice) {
e23fbb27 470 if (fDebug > 0) {
471 printf("<AliTRDdigitizer::Open> ");
abaf1f1d 472 printf("AliRun object found on file.\n");
473 }
da581aea 474 }
475 else {
e23fbb27 476 printf("<AliTRDdigitizer::Open> ");
da581aea 477 printf("Could not find AliRun object.\n");
478 return kFALSE;
479 }
f7336fa3 480
481 fEvent = nEvent;
482
483 // Import the Trees for the event nEvent in the file
88cb7938 484 fRunLoader->GetEvent(fEvent);
485
486 AliLoader* loader = fRunLoader->GetLoader("TRDLoader");
487 if (!loader)
488 {
489 Error("Open","Can not get TRD loader from Run Loader");
490 return kFALSE;
491 }
492
abaf1f1d 493 if (InitDetector()) {
88cb7938 494 TTree* tree = 0;
495 if (fSDigits)
496 {
497 //if we produce SDigits
498 tree = loader->TreeS();
499 if (!tree)
500 {
501 loader->MakeTree("S");
502 tree = loader->TreeS();
503 }
504 }
505 else
506 {//if we produce Digits
88cb7938 507 if (!tree)
508 {
509 loader->MakeTree("D");
510 tree = loader->TreeD();
511 }
512 }
513 return MakeBranch(tree);
abaf1f1d 514 }
515 else {
516 return kFALSE;
517 }
793ff80c 518
519}
520
521//_____________________________________________________________________________
522Bool_t AliTRDdigitizer::InitDetector()
523{
524 //
525 // Sets the pointer to the TRD detector and the geometry
526 //
527
dd9a6ee3 528 // Get the pointer to the detector class and check for version 1
4487dad0 529 fTRD = (AliTRD *) gAlice->GetDetector("TRD");
cec4059b 530 if (!fTRD) {
531 printf("<AliTRDdigitizer::InitDetector> ");
532 printf("No TRD module found\n");
533 exit(1);
534 }
dd9a6ee3 535 if (fTRD->IsVersion() != 1) {
e23fbb27 536 printf("<AliTRDdigitizer::InitDetector> ");
dd9a6ee3 537 printf("TRD must be version 1 (slow simulator).\n");
538 exit(1);
539 }
540
541 // Get the geometry
542 fGeo = fTRD->GetGeometry();
e23fbb27 543 if (fDebug > 0) {
544 printf("<AliTRDdigitizer::InitDetector> ");
abaf1f1d 545 printf("Geometry version %d\n",fGeo->IsVersion());
546 }
dd9a6ee3 547
abaf1f1d 548 // Create a digits manager
47b5729a 549 delete fDigitsManager;
abaf1f1d 550 fDigitsManager = new AliTRDdigitsManager();
551 fDigitsManager->SetSDigits(fSDigits);
552 fDigitsManager->CreateArrays();
553 fDigitsManager->SetEvent(fEvent);
e23fbb27 554 fDigitsManager->SetDebug(fDebug);
abaf1f1d 555
556 // The list for the input s-digits manager to be merged
47b5729a 557 if (fSDigitsManagerList) {
558 fSDigitsManagerList->Delete();
559 } else {
560 fSDigitsManagerList = new TList();
561 }
abaf1f1d 562
4487dad0 563 return kTRUE;
f7336fa3 564
565}
566
567//_____________________________________________________________________________
88cb7938 568Bool_t AliTRDdigitizer::MakeBranch(TTree* tree) const
6244debe 569{
abaf1f1d 570 //
571 // Create the branches for the digits array
6244debe 572 //
573
88cb7938 574 return fDigitsManager->MakeBranch(tree);
6244debe 575
576}
577
578//_____________________________________________________________________________
f7336fa3 579Bool_t AliTRDdigitizer::MakeDigits()
580{
581 //
872a7aba 582 // Creates digits.
f7336fa3 583 //
584
f7336fa3 585 ///////////////////////////////////////////////////////////////
586 // Parameter
587 ///////////////////////////////////////////////////////////////
588
589 // Converts number of electrons to fC
872a7aba 590 const Double_t kEl2fC = 1.602E-19 * 1.0E15;
f7336fa3 591
592 ///////////////////////////////////////////////////////////////
593
793ff80c 594 // Number of pads included in the pad response
a5cadd36 595 const Int_t kNpad = 3;
793ff80c 596
597 // Number of track dictionary arrays
a5cadd36 598 const Int_t kNDict = AliTRDdigitsManager::kNDict;
793ff80c 599
872a7aba 600 // Half the width of the amplification region
601 const Float_t kAmWidth = AliTRDgeometry::AmThick() / 2.;
ccb4315c 602 // Width of the drit region
603 const Float_t kDrWidth = AliTRDgeometry::DrThick();
3551db50 604
a5cadd36 605 Int_t iRow, iCol, iTime, iPad;
606 Int_t iDict = 0;
607 Int_t nBytes = 0;
f7336fa3 608
a5cadd36 609 Int_t totalSizeDigits = 0;
610 Int_t totalSizeDict0 = 0;
611 Int_t totalSizeDict1 = 0;
612 Int_t totalSizeDict2 = 0;
f7336fa3 613
a5cadd36 614 Int_t timeBinTRFend = 1;
872a7aba 615
a5cadd36 616 Double_t pos[3];
617 Double_t rot[3];
618 Double_t xyz[3];
619 Double_t padSignal[kNpad];
620 Double_t signalOld[kNpad];
872a7aba 621
a5cadd36 622 AliTRDdataArrayF *signals = 0;
623 AliTRDdataArrayI *digits = 0;
8230f242 624 AliTRDdataArrayI *dictionary[kNDict];
da581aea 625
a5cadd36 626 AliTRDpadPlane *padPlane = 0;
627
4487dad0 628 // Create a default parameter class if none is defined
629 if (!fPar) {
630 fPar = new AliTRDparameter("TRDparameter","Standard TRD parameter");
631 if (fDebug > 0) {
632 printf("<AliTRDdigitizer::MakeDigits> ");
633 printf("Create the default parameter object\n");
634 }
635 }
3551db50 636
637 AliTRDSimParam* simParam = AliTRDSimParam::Instance();
638 if (!simParam)
639 {
640 printf("<AliTRDdigitizer::MakeDigits> ");
641 printf("Could not get simulation params\n");
642 return kFALSE;
643 }
644
645 AliTRDCommonParam* commonParam = AliTRDCommonParam::Instance();
646 if (!commonParam)
647 {
648 printf("<AliTRDdigitizer::MakeDigits> ");
649 printf("Could not get common params\n");
650 return kFALSE;
651 }
652
793ff80c 653 // Create a container for the amplitudes
654 AliTRDsegmentArray *signalsArray
e23fbb27 655 = new AliTRDsegmentArray("AliTRDdataArrayF"
656 ,AliTRDgeometry::Ndet());
793ff80c 657
3551db50 658 AliTRDcalibDB* calibration = AliTRDcalibDB::Instance();
659 if (!calibration)
660 {
661 printf("<AliTRDdigitizer::MakeDigits> ");
662 printf("Could not get calibration object\n");
663 return kFALSE;
664 }
665
666 if (simParam->TRFOn()) {
667 timeBinTRFend = ((Int_t) ( simParam->GetTRFhi() * calibration->GetSamplingFrequency())) - 1;
e23fbb27 668 if (fDebug > 0) {
669 printf("<AliTRDdigitizer::MakeDigits> ");
ccb4315c 670 printf("Sample the TRF up to bin %d\n",timeBinTRFend);
abaf1f1d 671 }
da581aea 672 }
673
3551db50 674 Float_t elAttachProp = simParam->GetElAttachProp() / 100.;
793ff80c 675
872a7aba 676 if (!fGeo) {
e23fbb27 677 printf("<AliTRDdigitizer::MakeDigits> ");
872a7aba 678 printf("No geometry defined\n");
679 return kFALSE;
680 }
681
e23fbb27 682 if (fDebug > 0) {
683 printf("<AliTRDdigitizer::MakeDigits> ");
abaf1f1d 684 printf("Start creating digits.\n");
685 }
872a7aba 686
88cb7938 687 AliLoader* gimme = fRunLoader->GetLoader("TRDLoader");
688 if (!gimme->TreeH()) gimme->LoadHits();
689 TTree* hitTree = gimme->TreeH();
690 if (hitTree == 0x0)
691 {
692 Error("MakeDigits","Can not get TreeH");
693 return kFALSE;
694 }
695 fTRD->SetTreeAddress();
696
793ff80c 697 // Get the number of entries in the hit tree
698 // (Number of primary particles creating a hit somewhere)
0c24ba98 699 Int_t nTrack = 1;
700 if (!fSimpleSim) {
701 nTrack = (Int_t) hitTree->GetEntries();
702 if (fDebug > 0) {
703 printf("<AliTRDdigitizer::MakeDigits> ");
704 printf("Found %d primary particles\n",nTrack);
705 }
706 }
793ff80c 707
708 Int_t detectorOld = -1;
709 Int_t countHits = 0;
710
a328fff9 711 if (fDebug > 0) {
3551db50 712 printf("<AliTRDdigitizer::MakeDigits> Sampling = %.0fMHz\n", calibration->GetSamplingFrequency());
713 printf("<AliTRDdigitizer::MakeDigits> Gain = %d\n",(Int_t)simParam->GetGasGain());
714 printf("<AliTRDdigitizer::MakeDigits> Noise = %d\n",(Int_t)simParam->GetNoise());
715 if (simParam->TimeStructOn()) {
a328fff9 716 printf("<AliTRDdigitizer::MakeDigits> ");
717 printf("Time Structure of drift cells implemented.\n");
a328fff9 718 } else {
719 printf("<AliTRDdigitizer::MakeDigits> ");
720 printf("Constant drift velocity in drift cells.\n");
721 }
722 }
3551db50 723
724 Int_t nTimeTotal = calibration->GetNumberOfTimeBins();
725 Float_t samplingRate = calibration->GetSamplingFrequency();
a328fff9 726
793ff80c 727 // Loop through all entries in the tree
728 for (Int_t iTrack = 0; iTrack < nTrack; iTrack++) {
729
0c24ba98 730 if (!fSimpleSim) {
731 gAlice->ResetHits();
732 nBytes += hitTree->GetEvent(iTrack);
733 }
793ff80c 734
e23fbb27 735 // Loop through the TRD hits
736 Int_t iHit = 0;
737 AliTRDhit *hit = (AliTRDhit *) fTRD->FirstHit(-1);
738 while (hit) {
739
793ff80c 740 countHits++;
e23fbb27 741 iHit++;
742
ccb4315c 743 pos[0] = hit->X();
744 pos[1] = hit->Y();
745 pos[2] = hit->Z();
746 Float_t q = hit->GetCharge();
747 Int_t track = hit->Track();
748 Int_t detector = hit->GetDetector();
749 Int_t plane = fGeo->GetPlane(detector);
750 Int_t sector = fGeo->GetSector(detector);
751 Int_t chamber = fGeo->GetChamber(detector);
3551db50 752 Float_t time0 = AliTRDgeometry::GetTime0(plane);
753
754 padPlane = commonParam->GetPadPlane(plane,chamber);
a5cadd36 755 Float_t row0 = padPlane->GetRow0();
756 Float_t col0 = padPlane->GetCol0();
757 Int_t nRowMax = padPlane->GetNrows();
758 Int_t nColMax = padPlane->GetNcols();
793ff80c 759
e23fbb27 760 if (fDebug > 1) {
793ff80c 761 printf("Analyze hit no. %d ",iHit);
762 printf("-----------------------------------------------------------\n");
763 hit->Dump();
764 printf("plane = %d, sector = %d, chamber = %d\n"
765 ,plane,sector,chamber);
dde59437 766 printf("nRowMax = %d, nColMax = %d\n"
767 ,nRowMax,nColMax);
768 printf("nTimeTotal = %d\n"
769 ,nTimeTotal);
793ff80c 770 printf("row0 = %f, col0 = %f, time0 = %f\n"
771 ,row0,col0,time0);
a5cadd36 772 printf("samplingRate = %f\n"
773 ,samplingRate);
793ff80c 774 }
775
e23fbb27 776 // Don't analyze test hits and switched off detectors
777 if ((CheckDetector(plane,chamber,sector)) &&
778 (((Int_t) q) != 0)) {
dd56b762 779
e23fbb27 780 if (detector != detectorOld) {
e153aaf6 781
e23fbb27 782 if (fDebug > 1) {
783 printf("<AliTRDdigitizer::MakeDigits> ");
784 printf("Get new container. New det = %d, Old det = %d\n"
785 ,detector,detectorOld);
dd9a6ee3 786 }
e23fbb27 787 // Compress the old one if enabled
788 if ((fCompress) && (detectorOld > -1)) {
789 if (fDebug > 1) {
790 printf("<AliTRDdigitizer::MakeDigits> ");
791 printf("Compress the old container ...");
792 }
793 signals->Compress(1,0);
794 for (iDict = 0; iDict < kNDict; iDict++) {
795 dictionary[iDict]->Compress(1,0);
c1e4b257 796 }
e23fbb27 797 if (fDebug > 1) printf("done\n");
793ff80c 798 }
e23fbb27 799 // Get the new container
800 signals = (AliTRDdataArrayF *) signalsArray->At(detector);
801 if (signals->GetNtime() == 0) {
802 // Allocate a new one if not yet existing
803 if (fDebug > 1) {
804 printf("<AliTRDdigitizer::MakeDigits> ");
805 printf("Allocate a new container ... ");
806 }
807 signals->Allocate(nRowMax,nColMax,nTimeTotal);
793ff80c 808 }
0c24ba98 809 else if (fSimpleSim) {
810 // Clear an old one for the simple simulation
811 if (fDebug > 1) {
812 printf("<AliTRDdigitizer::MakeDigits> ");
813 printf("Clear a old container ... ");
814 }
815 signals->Clear();
816 }
793ff80c 817 else {
e23fbb27 818 // Expand an existing one
819 if (fCompress) {
820 if (fDebug > 1) {
821 printf("<AliTRDdigitizer::MakeDigits> ");
822 printf("Expand an existing container ... ");
823 }
824 signals->Expand();
825 }
793ff80c 826 }
e23fbb27 827 // The same for the dictionary
0c24ba98 828 if (!fSimpleSim) {
829 for (iDict = 0; iDict < kNDict; iDict++) {
830 dictionary[iDict] = fDigitsManager->GetDictionary(detector,iDict);
831 if (dictionary[iDict]->GetNtime() == 0) {
832 dictionary[iDict]->Allocate(nRowMax,nColMax,nTimeTotal);
833 }
834 else {
835 if (fCompress) dictionary[iDict]->Expand();
836 }
e23fbb27 837 }
838 }
839 if (fDebug > 1) printf("done\n");
840 detectorOld = detector;
793ff80c 841 }
842
e23fbb27 843 // Rotate the sectors on top of each other
0c24ba98 844 if (fSimpleSim) {
845 rot[0] = pos[0];
846 rot[1] = pos[1];
847 rot[2] = pos[2];
848 }
849 else {
850 fGeo->Rotate(detector,pos,rot);
851 }
e23fbb27 852
ccb4315c 853 // The driftlength. It is negative if the hit is between pad plane and anode wires.
a5cadd36 854 Double_t driftlength = time0 - rot[0];
e23fbb27 855
e23fbb27 856 // Loop over all electrons of this hit
857 // TR photons produce hits with negative charge
858 Int_t nEl = ((Int_t) TMath::Abs(q));
859 for (Int_t iEl = 0; iEl < nEl; iEl++) {
860
861 xyz[0] = rot[0];
862 xyz[1] = rot[1];
863 xyz[2] = rot[2];
864
a328fff9 865 // Stupid patch to take care of TR photons that are absorbed
866 // outside the chamber volume. A real fix would actually need
867 // a more clever implementation of the TR hit generation
81a6930e 868 if (q < 0.0) {
a5cadd36 869 if ((xyz[2] < padPlane->GetRowEnd()) ||
870 (xyz[2] > padPlane->GetRow0())) {
81a6930e 871 if (iEl == 0) {
872 printf("<AliTRDdigitizer::MakeDigits> ");
a5cadd36 873 printf("Hit outside of sensitive volume, row (z=%f, row0=%f, rowE=%f)\n"
874 ,xyz[2],padPlane->GetRow0(),padPlane->GetRowEnd());
81a6930e 875 }
876 continue;
a328fff9 877 }
ccb4315c 878 Float_t tt = driftlength + kAmWidth;
879 if (tt < 0.0 || tt > kDrWidth + 2.*kAmWidth) {
81a6930e 880 if (iEl == 0) {
881 printf("<AliTRDdigitizer::MakeDigits> ");
882 printf("Hit outside of sensitive volume, time (Q = %d)\n",((Int_t) q));
883 }
884 continue;
a328fff9 885 }
a328fff9 886 }
887
3551db50 888 // Get row and col of unsmeared electron to retrieve drift velocity
e23fbb27 889 // The pad row (z-direction)
a5cadd36 890 Int_t rowE = padPlane->GetPadRowNumber(xyz[2]);
891 if (rowE < 0) continue;
892 Double_t rowOffset = padPlane->GetPadRowOffset(rowE,xyz[2]);
e23fbb27 893
894 // The pad column (rphi-direction)
de4b10e5 895 Float_t offsetTilt = padPlane->GetTiltOffset(rowOffset); // MI change
896 Int_t colE = padPlane->GetPadColNumber(xyz[1]+offsetTilt,rowOffset);
897 if (colE < 0) continue;
898 Double_t colOffset = padPlane->GetPadColOffset(colE,xyz[1]+offsetTilt);
ccb4315c 899
3551db50 900 Float_t driftvelocity = calibration->GetVdrift(detector, colE, rowE);
901
902 // Normalised drift length
903 Double_t absdriftlength = TMath::Abs(driftlength);
904 if (commonParam->ExBOn())
905 absdriftlength /= TMath::Sqrt(GetLorentzFactor(driftvelocity));
906
907 // Electron attachment
908 if (simParam->ElAttachOn()) {
909 if (gRandom->Rndm() < (absdriftlength * elAttachProp)) continue;
910 }
911
912 // Apply the diffusion smearing
913 if (simParam->DiffusionOn()) {
914 if (!(Diffusion(driftvelocity, absdriftlength,xyz))) continue;
915 }
916
917 // Apply E x B effects (depends on drift direction)
918 if (commonParam->ExBOn()) {
919 if (!(ExB(driftvelocity, driftlength,xyz))) continue;
920 }
921
922 // The electron position after diffusion and ExB in pad coordinates.
923 // The pad row (z-direction)
e02e7d86 924 rowE = padPlane->GetPadRowNumber(xyz[2]);
3551db50 925 if (rowE < 0) continue;
e02e7d86 926 rowOffset = padPlane->GetPadRowOffset(rowE,xyz[2]);
3551db50 927
928 // The pad column (rphi-direction)
e02e7d86 929 offsetTilt = padPlane->GetTiltOffset(rowOffset); // MI change
930 colE = padPlane->GetPadColNumber(xyz[1]+offsetTilt,rowOffset);
3551db50 931 if (colE < 0) continue;
e02e7d86 932 colOffset = padPlane->GetPadColOffset(colE,xyz[1]+offsetTilt);
3551db50 933
e02e7d86 934 // Also re-retrieve drift velocity because col and row may have changed
3551db50 935 driftvelocity = calibration->GetVdrift(detector, colE, rowE);
936 Float_t t0 = calibration->GetT0(detector, colE, rowE);
937
938 // Convert the position to drift time, using either constant drift velocity or
ccb4315c 939 // time structure of drift cells (non-isochronity, GARFIELD calculation).
a5cadd36 940 Double_t drifttime;
3551db50 941 if (simParam->TimeStructOn()) {
ccb4315c 942 // Get z-position with respect to anode wire:
3551db50 943 //Double_t Z = xyz[2] - row0 + simParam->GetAnodeWireOffset();
944 Double_t Z = row0 - xyz[2] + simParam->GetAnodeWireOffset();
ccb4315c 945 Z -= ((Int_t)(2*Z))/2.;
946 if (Z>0.25) Z = 0.5-Z;
947 // use drift time map (GARFIELD)
3551db50 948 drifttime = TimeStruct(driftvelocity, time0 - xyz[0] + kAmWidth, Z);
a5cadd36 949 }
950 else {
ccb4315c 951 // use constant drift velocity
3551db50 952 drifttime = TMath::Abs(time0 - xyz[0]) / driftvelocity;
e23fbb27 953 }
ccb4315c 954
e23fbb27 955 // Apply the gas gain including fluctuations
a5cadd36 956 Double_t ggRndm = 0.0;
e23fbb27 957 do {
958 ggRndm = gRandom->Rndm();
959 } while (ggRndm <= 0);
3551db50 960 Int_t signal = (Int_t) (-(simParam->GetGasGain()) * TMath::Log(ggRndm));
e23fbb27 961
962 // Apply the pad response
cc7cef99 963 if (simParam->PRFOn()) {
e23fbb27 964 // The distance of the electron to the center of the pad
965 // in units of pad width
a5cadd36 966 //Double_t dist = - colOffset / padPlane->GetColSize(colE);
e02e7d86 967 Double_t dist = (colOffset - 0.5*padPlane->GetColSize(colE))
a5cadd36 968 / padPlane->GetColSize(colE);
e02e7d86 969
6a739e92 970 if (!(calibration->PadResponse(signal,dist,plane,padSignal))) continue;
793ff80c 971 }
e23fbb27 972 else {
973 padSignal[0] = 0.0;
974 padSignal[1] = signal;
975 padSignal[2] = 0.0;
976 }
977
6a739e92 978 // The time bin (always positive), with t0 correction
979 Double_t timeBinIdeal = drifttime * samplingRate + t0;
980 Int_t timeBinTruncated = (Int_t) timeBinIdeal;
3551db50 981 // The distance of the position to the middle of the timebin
6a739e92 982 Double_t timeOffset = ((Float_t) timeBinTruncated + 0.5 - timeBinIdeal) / samplingRate;
983
e23fbb27 984 // Sample the time response inside the drift region
985 // + additional time bins before and after.
986 // The sampling is done always in the middle of the time bin
6a739e92 987 for (Int_t iTimeBin = TMath::Max(timeBinTruncated, 0);
988 iTimeBin < TMath::Min(timeBinTruncated+timeBinTRFend,nTimeTotal);
989 iTimeBin++) {
e23fbb27 990
991 // Apply the time response
a5cadd36 992 Double_t timeResponse = 1.0;
993 Double_t crossTalk = 0.0;
6a739e92 994 Double_t time = (iTimeBin - timeBinTruncated) / samplingRate + timeOffset;
3551db50 995 if (simParam->TRFOn()) {
996 timeResponse = simParam->TimeResponse(time);
997 }
998
999 if (simParam->CTOn()) {
1000 crossTalk = simParam->CrossTalk(time);
e23fbb27 1001 }
1002
1003 signalOld[0] = 0.0;
1004 signalOld[1] = 0.0;
1005 signalOld[2] = 0.0;
f7336fa3 1006
e23fbb27 1007 for (iPad = 0; iPad < kNpad; iPad++) {
1008
1009 Int_t colPos = colE + iPad - 1;
1010 if (colPos < 0) continue;
1011 if (colPos >= nColMax) break;
1012
1013 // Add the signals
dde59437 1014 Int_t iCurrentTimeBin = iTimeBin;
e23fbb27 1015 signalOld[iPad] = signals->GetDataUnchecked(rowE,colPos,iCurrentTimeBin);
1016 if( colPos != colE ) {
1017 signalOld[iPad] += padSignal[iPad] * (timeResponse + crossTalk);
1018 }
1019 else {
1020 signalOld[iPad] += padSignal[iPad] * timeResponse;
1021 }
1022 signals->SetDataUnchecked(rowE,colPos,iCurrentTimeBin,signalOld[iPad]);
1023
1024 // Store the track index in the dictionary
1025 // Note: We store index+1 in order to allow the array to be compressed
0c24ba98 1026 if ((signalOld[iPad] > 0) && (!fSimpleSim)) {
e23fbb27 1027 for (iDict = 0; iDict < kNDict; iDict++) {
1028 Int_t oldTrack = dictionary[iDict]->GetDataUnchecked(rowE
1029 ,colPos
1030 ,iCurrentTimeBin);
1031 if (oldTrack == track+1) break;
1032 if (oldTrack == 0) {
1033 dictionary[iDict]->SetDataUnchecked(rowE,colPos,iCurrentTimeBin,track+1);
1034 break;
1035 }
71d9fa7b 1036 }
1037 }
872a7aba 1038
e23fbb27 1039 } // Loop: pads
f7336fa3 1040
e23fbb27 1041 } // Loop: time bins
f7336fa3 1042
e23fbb27 1043 } // Loop: electrons of a single hit
f7336fa3 1044
e23fbb27 1045 } // If: detector and test hit
f7336fa3 1046
e23fbb27 1047 hit = (AliTRDhit *) fTRD->NextHit();
f7336fa3 1048
e23fbb27 1049 } // Loop: hits of one primary track
1050
1051 } // Loop: primary tracks
1052
1053 if (fDebug > 0) {
1054 printf("<AliTRDdigitizer::MakeDigits> ");
abaf1f1d 1055 printf("Finished analyzing %d hits\n",countHits);
1056 }
793ff80c 1057
0c24ba98 1058 // The coupling factor
3551db50 1059 Double_t coupling = simParam->GetPadCoupling()
1060 * simParam->GetTimeCoupling();
0c24ba98 1061
1062 // The conversion factor
a5cadd36 1063 Double_t convert = kEl2fC
3551db50 1064 * simParam->GetChipGain();
6244debe 1065
793ff80c 1066 // Loop through all chambers to finalize the digits
0c24ba98 1067 Int_t iDetBeg = 0;
1068 Int_t iDetEnd = AliTRDgeometry::Ndet();
1069 if (fSimpleSim) {
1070 iDetBeg = fSimpleDet;
1071 iDetEnd = iDetBeg + 1;
1072 }
1073 for (Int_t iDet = iDetBeg; iDet < iDetEnd; iDet++) {
793ff80c 1074
872a7aba 1075 Int_t plane = fGeo->GetPlane(iDet);
1076 Int_t sector = fGeo->GetSector(iDet);
1077 Int_t chamber = fGeo->GetChamber(iDet);
3551db50 1078 Int_t nRowMax = commonParam->GetRowMax(plane,chamber,sector);
1079 Int_t nColMax = commonParam->GetColMax(plane);
793ff80c 1080
e23fbb27 1081 Double_t *inADC = new Double_t[nTimeTotal];
1082 Double_t *outADC = new Double_t[nTimeTotal];
1083
1084 if (fDebug > 0) {
1085 printf("<AliTRDdigitizer::MakeDigits> ");
793ff80c 1086 printf("Digitization for chamber %d\n",iDet);
1087 }
da581aea 1088
793ff80c 1089 // Add a container for the digits of this detector
abaf1f1d 1090 digits = fDigitsManager->GetDigits(iDet);
793ff80c 1091 // Allocate memory space for the digits buffer
0c24ba98 1092 if (digits->GetNtime() == 0) {
1093 digits->Allocate(nRowMax,nColMax,nTimeTotal);
1094 }
1095 else if (fSimpleSim) {
1096 digits->Clear();
1097 }
1098
793ff80c 1099 // Get the signal container
1100 signals = (AliTRDdataArrayF *) signalsArray->At(iDet);
1101 if (signals->GetNtime() == 0) {
1102 // Create missing containers
872a7aba 1103 signals->Allocate(nRowMax,nColMax,nTimeTotal);
793ff80c 1104 }
1105 else {
1106 // Expand the container if neccessary
1107 if (fCompress) signals->Expand();
1108 }
1109 // Create the missing dictionary containers
0c24ba98 1110 if (!fSimpleSim) {
1111 for (iDict = 0; iDict < kNDict; iDict++) {
1112 dictionary[iDict] = fDigitsManager->GetDictionary(iDet,iDict);
1113 if (dictionary[iDict]->GetNtime() == 0) {
1114 dictionary[iDict]->Allocate(nRowMax,nColMax,nTimeTotal);
1115 }
1116 }
793ff80c 1117 }
f7336fa3 1118
793ff80c 1119 Int_t nDigits = 0;
1120
6244debe 1121 // Don't create noise in detectors that are switched off
1122 if (CheckDetector(plane,chamber,sector)) {
1123
1124 // Create the digits for this chamber
872a7aba 1125 for (iRow = 0; iRow < nRowMax; iRow++ ) {
1126 for (iCol = 0; iCol < nColMax; iCol++ ) {
6244debe 1127
e23fbb27 1128 // Create summable digits
1129 if (fSDigits) {
6244debe 1130
e23fbb27 1131 for (iTime = 0; iTime < nTimeTotal; iTime++) {
872a7aba 1132 Float_t signalAmp = signals->GetDataUnchecked(iRow,iCol,iTime);
abaf1f1d 1133 signalAmp *= fSDigitsScale;
e23fbb27 1134 signalAmp = TMath::Min(signalAmp,(Float_t) 1.0e9);
abaf1f1d 1135 Int_t adc = (Int_t) signalAmp;
4487dad0 1136 if (adc > 0) nDigits++;
872a7aba 1137 digits->SetDataUnchecked(iRow,iCol,iTime,adc);
c1e4b257 1138 }
6244debe 1139
e23fbb27 1140 }
1141 // Create normal digits
1142 else {
6244debe 1143
e23fbb27 1144 for (iTime = 0; iTime < nTimeTotal; iTime++) {
1145 Float_t signalAmp = signals->GetDataUnchecked(iRow,iCol,iTime);
0c24ba98 1146 // Pad and time coupling
1147 signalAmp *= coupling;
7e582e9f 1148 // Add the noise, starting from minus ADC baseline in electrons
3551db50 1149 Double_t baselineEl = simParam->GetADCbaseline() * (simParam->GetADCinRange()
1150 / simParam->GetADCoutRange())
7e582e9f 1151 / convert;
3551db50 1152 signalAmp = TMath::Max((Double_t) gRandom->Gaus(signalAmp,simParam->GetNoise())
7e582e9f 1153 ,-baselineEl);
6244debe 1154 // Convert to mV
1155 signalAmp *= convert;
7e582e9f 1156 // Add ADC baseline in mV
3551db50 1157 signalAmp += simParam->GetADCbaseline() * (simParam->GetADCinRange()
1158 / simParam->GetADCoutRange());
7e582e9f 1159 // Convert to ADC counts. Set the overflow-bit fADCoutRange if the
6244debe 1160 // signal is larger than fADCinRange
1161 Int_t adc = 0;
3551db50 1162 if (signalAmp >= simParam->GetADCinRange()) {
1163 adc = ((Int_t) simParam->GetADCoutRange());
6244debe 1164 }
1165 else {
3551db50 1166 adc = ((Int_t) (signalAmp * (simParam->GetADCoutRange()
1167 / simParam->GetADCinRange())));
6244debe 1168 }
e23fbb27 1169 inADC[iTime] = adc;
1170 outADC[iTime] = adc;
1171 }
6244debe 1172
e23fbb27 1173 // Apply the tail cancelation via the digital filter
3551db50 1174 if (simParam->TCOn()) {
1175 DeConvExp(inADC,outADC,nTimeTotal,simParam->GetTCnexp());
e23fbb27 1176 }
1177
1178 for (iTime = 0; iTime < nTimeTotal; iTime++) {
6244debe 1179 // Store the amplitude of the digit if above threshold
3551db50 1180 if (outADC[iTime] > simParam->GetADCthreshold()) {
e23fbb27 1181 if (fDebug > 2) {
1182 printf(" iRow = %d, iCol = %d, iTime = %d, adc = %f\n"
1183 ,iRow,iCol,iTime,outADC[iTime]);
6244debe 1184 }
1185 nDigits++;
3583ac1a 1186 digits->SetDataUnchecked(iRow,iCol,iTime,((Int_t) outADC[iTime]));
6244debe 1187 }
6244debe 1188 }
1189
1190 }
e23fbb27 1191
6244debe 1192 }
793ff80c 1193 }
6244debe 1194
793ff80c 1195 }
1196
1197 // Compress the arrays
0c24ba98 1198 if (!fSimpleSim) {
1199 digits->Compress(1,0);
1200 for (iDict = 0; iDict < kNDict; iDict++) {
1201 dictionary[iDict]->Compress(1,0);
1202 }
f7336fa3 1203
0c24ba98 1204 totalSizeDigits += digits->GetSize();
1205 totalSizeDict0 += dictionary[0]->GetSize();
1206 totalSizeDict1 += dictionary[1]->GetSize();
1207 totalSizeDict2 += dictionary[2]->GetSize();
f7336fa3 1208
3551db50 1209 Float_t nPixel = nRowMax * nColMax * nTimeTotal;
0c24ba98 1210 if (fDebug > 0) {
1211 printf("<AliTRDdigitizer::MakeDigits> ");
1212 printf("Found %d digits in detector %d (%3.0f).\n"
1213 ,nDigits,iDet
1214 ,100.0 * ((Float_t) nDigits) / nPixel);
1215 }
1216
1217 if (fCompress) signals->Compress(1,0);
abaf1f1d 1218
0c24ba98 1219 }
f7336fa3 1220
e23fbb27 1221 delete [] inADC;
1222 delete [] outADC;
1223
f7336fa3 1224 }
1225
0c24ba98 1226 if (signalsArray) {
1227 delete signalsArray;
1228 signalsArray = 0;
1229 }
1230
e23fbb27 1231 if (fDebug > 0) {
1232 printf("<AliTRDdigitizer::MakeDigits> ");
abaf1f1d 1233 printf("Total number of analyzed hits = %d\n",countHits);
0c24ba98 1234 if (!fSimpleSim) {
1235 printf("<AliTRDdigitizer::MakeDigits> ");
1236 printf("Total digits data size = %d, %d, %d, %d\n",totalSizeDigits
1237 ,totalSizeDict0
1238 ,totalSizeDict1
1239 ,totalSizeDict2);
1240 }
abaf1f1d 1241 }
1242
1243 return kTRUE;
1244
1245}
1246
1247//_____________________________________________________________________________
1248void AliTRDdigitizer::AddSDigitsManager(AliTRDdigitsManager *man)
1249{
1250 //
1251 // Add a digits manager for s-digits to the input list.
1252 //
1253
1254 fSDigitsManagerList->Add(man);
1255
1256}
1257
1258//_____________________________________________________________________________
b1113c6b 1259void AliTRDdigitizer::DeleteSDigitsManager()
1260{
1261 //
1262 // Removes digits manager from the input list.
1263 //
1264
1265 fSDigitsManagerList->Delete();
1266
1267}
1268
1269//_____________________________________________________________________________
abaf1f1d 1270Bool_t AliTRDdigitizer::ConvertSDigits()
1271{
1272 //
1273 // Converts s-digits to normal digits
1274 //
1275
1276 // Number of track dictionary arrays
1277 const Int_t kNDict = AliTRDdigitsManager::kNDict;
1278
1279 // Converts number of electrons to fC
1280 const Double_t kEl2fC = 1.602E-19 * 1.0E15;
1281
1282 Int_t iDict = 0;
e23fbb27 1283 Int_t iRow;
1284 Int_t iCol;
1285 Int_t iTime;
abaf1f1d 1286
4487dad0 1287 if (!fPar) {
1288 fPar = new AliTRDparameter("TRDparameter","Standard parameter");
1289 if (fDebug > 0) {
1290 printf("<AliTRDdigitizer::ConvertSDigits> ");
1291 printf("Create the default parameter object\n");
1292 }
abaf1f1d 1293 }
1294
3551db50 1295 AliTRDSimParam* simParam = AliTRDSimParam::Instance();
1296 if (!simParam)
1297 {
1298 printf("<AliTRDdigitizer::ConvertSDigits> ");
1299 printf("Could not get simulation params\n");
1300 return kFALSE;
1301 }
1302
1303 AliTRDCommonParam* commonParam = AliTRDCommonParam::Instance();
1304 if (!commonParam)
1305 {
1306 printf("<AliTRDdigitizer::ConvertSDigits> ");
1307 printf("Could not get common params\n");
1308 return kFALSE;
1309 }
1310
1311
1312 AliTRDcalibDB* calibration = AliTRDcalibDB::Instance();
1313 if (!calibration)
1314 {
1315 printf("<AliTRDdigitizer::ConvertSDigits> ");
1316 printf("Could not get calibration object\n");
1317 return kFALSE;
1318 }
1319
abaf1f1d 1320 Double_t sDigitsScale = 1.0 / GetSDigitsScale();
3551db50 1321 Double_t noise = simParam->GetNoise();
1322 Double_t padCoupling = simParam->GetPadCoupling();
1323 Double_t timeCoupling = simParam->GetTimeCoupling();
1324 Double_t chipGain = simParam->GetChipGain();
0c24ba98 1325 Double_t coupling = padCoupling * timeCoupling;
1326 Double_t convert = kEl2fC * chipGain;
3551db50 1327 Double_t adcInRange = simParam->GetADCinRange();
1328 Double_t adcOutRange = simParam->GetADCoutRange();
1329 Int_t adcThreshold = simParam->GetADCthreshold();
1330 Int_t adcBaseline = simParam->GetADCbaseline();
abaf1f1d 1331
1332 AliTRDdataArrayI *digitsIn;
1333 AliTRDdataArrayI *digitsOut;
1334 AliTRDdataArrayI *dictionaryIn[kNDict];
1335 AliTRDdataArrayI *dictionaryOut[kNDict];
1336
3551db50 1337 Int_t nTimeTotal = calibration->GetNumberOfTimeBins();
1338
abaf1f1d 1339 // Loop through the detectors
1340 for (Int_t iDet = 0; iDet < AliTRDgeometry::Ndet(); iDet++) {
da581aea 1341
e23fbb27 1342 if (fDebug > 0) {
1343 printf("<AliTRDdigitizer::ConvertSDigits> ");
abaf1f1d 1344 printf("Convert detector %d to digits.\n",iDet);
1345 }
1346
1347 Int_t plane = fGeo->GetPlane(iDet);
1348 Int_t sector = fGeo->GetSector(iDet);
1349 Int_t chamber = fGeo->GetChamber(iDet);
3551db50 1350 Int_t nRowMax = commonParam->GetRowMax(plane,chamber,sector);
1351 Int_t nColMax = commonParam->GetColMax(plane);
abaf1f1d 1352
e23fbb27 1353 Double_t *inADC = new Double_t[nTimeTotal];
1354 Double_t *outADC = new Double_t[nTimeTotal];
1355
abaf1f1d 1356 digitsIn = fSDigitsManager->GetDigits(iDet);
1357 digitsIn->Expand();
1358 digitsOut = fDigitsManager->GetDigits(iDet);
1359 digitsOut->Allocate(nRowMax,nColMax,nTimeTotal);
1360 for (iDict = 0; iDict < kNDict; iDict++) {
1361 dictionaryIn[iDict] = fSDigitsManager->GetDictionary(iDet,iDict);
1362 dictionaryIn[iDict]->Expand();
1363 dictionaryOut[iDict] = fDigitsManager->GetDictionary(iDet,iDict);
1364 dictionaryOut[iDict]->Allocate(nRowMax,nColMax,nTimeTotal);
1365 }
1366
e23fbb27 1367 for (iRow = 0; iRow < nRowMax; iRow++ ) {
1368 for (iCol = 0; iCol < nColMax; iCol++ ) {
abaf1f1d 1369
e23fbb27 1370 for (iTime = 0; iTime < nTimeTotal; iTime++) {
abaf1f1d 1371 Double_t signal = (Double_t) digitsIn->GetDataUnchecked(iRow,iCol,iTime);
1372 signal *= sDigitsScale;
0c24ba98 1373 // Pad and time coupling
1374 signal *= coupling;
7e582e9f 1375 // Add the noise, starting from minus ADC baseline in electrons
1376 Double_t baselineEl = adcBaseline * (adcInRange / adcOutRange) / convert;
1377 signal = TMath::Max((Double_t) gRandom->Gaus(signal,noise),-baselineEl);
abaf1f1d 1378 // Convert to mV
1379 signal *= convert;
7e582e9f 1380 // add ADC baseline in mV
1381 signal += adcBaseline * (adcInRange / adcOutRange);
abaf1f1d 1382 // Convert to ADC counts. Set the overflow-bit adcOutRange if the
1383 // signal is larger than adcInRange
1384 Int_t adc = 0;
1385 if (signal >= adcInRange) {
1386 adc = ((Int_t) adcOutRange);
1387 }
1388 else {
1389 adc = ((Int_t) (signal * (adcOutRange / adcInRange)));
1390 }
e23fbb27 1391 inADC[iTime] = adc;
1392 outADC[iTime] = adc;
1393 }
1394
1395 // Apply the tail cancelation via the digital filter
3551db50 1396 if (simParam->TCOn()) {
1397 DeConvExp(inADC,outADC,nTimeTotal,simParam->GetTCnexp());
e23fbb27 1398 }
1399
1400 for (iTime = 0; iTime < nTimeTotal; iTime++) {
abaf1f1d 1401 // Store the amplitude of the digit if above threshold
e23fbb27 1402 if (outADC[iTime] > adcThreshold) {
3583ac1a 1403 digitsOut->SetDataUnchecked(iRow,iCol,iTime,((Int_t) outADC[iTime]));
e23fbb27 1404 // Copy the dictionary
1405 for (iDict = 0; iDict < kNDict; iDict++) {
1406 Int_t track = dictionaryIn[iDict]->GetDataUnchecked(iRow,iCol,iTime);
1407 dictionaryOut[iDict]->SetDataUnchecked(iRow,iCol,iTime,track);
1408 }
abaf1f1d 1409 }
abaf1f1d 1410 }
e23fbb27 1411
abaf1f1d 1412 }
1413 }
1414
1415 if (fCompress) {
1416 digitsIn->Compress(1,0);
1417 digitsOut->Compress(1,0);
1418 for (iDict = 0; iDict < kNDict; iDict++) {
1419 dictionaryIn[iDict]->Compress(1,0);
1420 dictionaryOut[iDict]->Compress(1,0);
1421 }
1422 }
1423
e23fbb27 1424 delete [] inADC;
1425 delete [] outADC;
1426
abaf1f1d 1427 }
f7336fa3 1428
1429 return kTRUE;
1430
1431}
1432
1433//_____________________________________________________________________________
abaf1f1d 1434Bool_t AliTRDdigitizer::MergeSDigits()
16bf9884 1435{
1436 //
abaf1f1d 1437 // Merges the input s-digits:
1438 // - The amplitude of the different inputs are summed up.
1439 // - Of the track IDs from the input dictionaries only one is
1440 // kept for each input. This works for maximal 3 different merged inputs.
16bf9884 1441 //
1442
abaf1f1d 1443 // Number of track dictionary arrays
1444 const Int_t kNDict = AliTRDdigitsManager::kNDict;
1445
4487dad0 1446 if (!fPar) {
1447 fPar = new AliTRDparameter("TRDparameter","Standard parameter");
1448 if (fDebug > 0) {
1449 printf("<AliTRDdigitizer::MergeSDigits> ");
1450 printf("Create the default parameter object\n");
1451 }
1452 }
1453
3551db50 1454 AliTRDSimParam* simParam = AliTRDSimParam::Instance();
1455 if (!simParam)
1456 {
1457 printf("<AliTRDdigitizer::MergeSDigits> ");
1458 printf("Could not get simulation params\n");
1459 return kFALSE;
1460 }
1461
1462 AliTRDCommonParam* commonParam = AliTRDCommonParam::Instance();
1463 if (!commonParam)
1464 {
1465 printf("<AliTRDdigitizer::MergeSDigits> ");
1466 printf("Could not get common params\n");
1467 return kFALSE;
1468 }
1469
1470 AliTRDcalibDB* calibration = AliTRDcalibDB::Instance();
1471 if (!calibration)
1472 {
1473 printf("<AliTRDdigitizer::MergeSDigits> ");
1474 printf("Could not get calibration object\n");
1475 return kFALSE;
1476 }
1477
abaf1f1d 1478 Int_t iDict = 0;
e23fbb27 1479 Int_t jDict = 0;
abaf1f1d 1480
1481 AliTRDdataArrayI *digitsA;
1482 AliTRDdataArrayI *digitsB;
1483 AliTRDdataArrayI *dictionaryA[kNDict];
1484 AliTRDdataArrayI *dictionaryB[kNDict];
1485
1486 // Get the first s-digits
1487 fSDigitsManager = (AliTRDdigitsManager *) fSDigitsManagerList->First();
1488 if (!fSDigitsManager) return kFALSE;
1489
1490 // Loop through the other sets of s-digits
1491 AliTRDdigitsManager *mergeSDigitsManager;
1492 mergeSDigitsManager = (AliTRDdigitsManager *)
1493 fSDigitsManagerList->After(fSDigitsManager);
1494
e23fbb27 1495 if (fDebug > 0) {
abaf1f1d 1496 if (mergeSDigitsManager) {
e23fbb27 1497 printf("<AliTRDdigitizer::MergeSDigits> ");
1498 printf("Merge %d input files.\n",fSDigitsManagerList->GetSize());
abaf1f1d 1499 }
1500 else {
e23fbb27 1501 printf("<AliTRDdigitizer::MergeSDigits> ");
abaf1f1d 1502 printf("Only one input file.\n");
1503 }
1504 }
1505
3551db50 1506 Int_t nTimeTotal = calibration->GetNumberOfTimeBins();
1507
abaf1f1d 1508 Int_t iMerge = 0;
1509 while (mergeSDigitsManager) {
1510
1511 iMerge++;
1512
1513 // Loop through the detectors
1514 for (Int_t iDet = 0; iDet < AliTRDgeometry::Ndet(); iDet++) {
1515
1516 Int_t plane = fGeo->GetPlane(iDet);
1517 Int_t sector = fGeo->GetSector(iDet);
1518 Int_t chamber = fGeo->GetChamber(iDet);
3551db50 1519 Int_t nRowMax = commonParam->GetRowMax(plane,chamber,sector);
1520 Int_t nColMax = commonParam->GetColMax(plane);
abaf1f1d 1521
1522 // Loop through the pixels of one detector and add the signals
1523 digitsA = fSDigitsManager->GetDigits(iDet);
1524 digitsB = mergeSDigitsManager->GetDigits(iDet);
1525 digitsA->Expand();
1526 digitsB->Expand();
1527 for (iDict = 0; iDict < kNDict; iDict++) {
1528 dictionaryA[iDict] = fSDigitsManager->GetDictionary(iDet,iDict);
1529 dictionaryB[iDict] = mergeSDigitsManager->GetDictionary(iDet,iDict);
1530 dictionaryA[iDict]->Expand();
1531 dictionaryB[iDict]->Expand();
1532 }
1533
4487dad0 1534 // Merge only detectors that contain a signal
1535 Bool_t doMerge = kTRUE;
1536 if (fMergeSignalOnly) {
1537 if (digitsA->GetOverThreshold(0) == 0) {
1538 doMerge = kFALSE;
1539 }
abaf1f1d 1540 }
1541
4487dad0 1542 if (doMerge) {
abaf1f1d 1543
4487dad0 1544 if (fDebug > 0) {
1545 printf("<AliTRDdigitizer::MergeSDigits> ");
1546 printf("Merge detector %d of input no.%d\n",iDet,iMerge+1);
1547 }
abaf1f1d 1548
4487dad0 1549 for (Int_t iRow = 0; iRow < nRowMax; iRow++ ) {
1550 for (Int_t iCol = 0; iCol < nColMax; iCol++ ) {
1551 for (Int_t iTime = 0; iTime < nTimeTotal; iTime++) {
1552
1553 // Add the amplitudes of the summable digits
1554 Int_t ampA = digitsA->GetDataUnchecked(iRow,iCol,iTime);
1555 Int_t ampB = digitsB->GetDataUnchecked(iRow,iCol,iTime);
1556 ampA += ampB;
1557 digitsA->SetDataUnchecked(iRow,iCol,iTime,ampA);
1558
1559 // Add the mask to the track id if defined.
1560 for (iDict = 0; iDict < kNDict; iDict++) {
1561 Int_t trackB = dictionaryB[iDict]->GetDataUnchecked(iRow,iCol,iTime);
1562 if ((fMasks) && (trackB > 0)) {
1563 for (jDict = 0; jDict < kNDict; jDict++) {
1564 Int_t trackA = dictionaryA[iDict]->GetDataUnchecked(iRow,iCol,iTime);
1565 if (trackA == 0) {
1566 trackA = trackB + fMasks[iMerge];
1567 dictionaryA[iDict]->SetDataUnchecked(iRow,iCol,iTime,trackA);
1568 }
1569 }
1570 }
e23fbb27 1571 }
abaf1f1d 1572
4487dad0 1573 }
abaf1f1d 1574 }
4487dad0 1575 }
1576
abaf1f1d 1577 }
1578
1579 if (fCompress) {
1580 digitsA->Compress(1,0);
1581 digitsB->Compress(1,0);
1582 for (iDict = 0; iDict < kNDict; iDict++) {
1583 dictionaryA[iDict]->Compress(1,0);
1584 dictionaryB[iDict]->Compress(1,0);
1585 }
1586 }
1587
1588 }
1589
1590 // The next set of s-digits
1591 mergeSDigitsManager = (AliTRDdigitsManager *)
1592 fSDigitsManagerList->After(mergeSDigitsManager);
1593
1594 }
1595
16bf9884 1596 return kTRUE;
1597
1598}
1599
1600//_____________________________________________________________________________
abaf1f1d 1601Bool_t AliTRDdigitizer::SDigits2Digits()
1602{
1603 //
1604 // Merges the input s-digits and converts them to normal digits
1605 //
1606
1607 if (!MergeSDigits()) return kFALSE;
1608
1609 return ConvertSDigits();
1610
1611}
1612
1613//_____________________________________________________________________________
793ff80c 1614Bool_t AliTRDdigitizer::CheckDetector(Int_t plane, Int_t chamber, Int_t sector)
1615{
1616 //
1617 // Checks whether a detector is enabled
1618 //
1619
0c24ba98 1620 if (fSimpleSim) return kTRUE;
1621
793ff80c 1622 if ((fTRD->GetSensChamber() >= 0) &&
1623 (fTRD->GetSensChamber() != chamber)) return kFALSE;
1624 if ((fTRD->GetSensPlane() >= 0) &&
c1e4b257 1625 (fTRD->GetSensPlane() != plane)) return kFALSE;
793ff80c 1626 if ( fTRD->GetSensSector() >= 0) {
1627 Int_t sens1 = fTRD->GetSensSector();
1628 Int_t sens2 = sens1 + fTRD->GetSensSectorRange();
1629 sens2 -= ((Int_t) (sens2 / AliTRDgeometry::Nsect()))
1630 * AliTRDgeometry::Nsect();
1631 if (sens1 < sens2) {
1632 if ((sector < sens1) || (sector >= sens2)) return kFALSE;
1633 }
1634 else {
1635 if ((sector < sens1) && (sector >= sens2)) return kFALSE;
1636 }
1637 }
1638
1639 return kTRUE;
1640
1641}
1642
1643//_____________________________________________________________________________
0a29d0f1 1644Bool_t AliTRDdigitizer::WriteDigits() const
f7336fa3 1645{
1646 //
1647 // Writes out the TRD-digits and the dictionaries
1648 //
1649
bdbb05bb 1650 //Write parameters
1651 fRunLoader->CdGAFile();
1652 if (!gFile->Get("TRDparameter")) GetParameter()->Write();
1653
da581aea 1654 // Store the digits and the dictionary in the tree
abaf1f1d 1655 return fDigitsManager->WriteDigits();
f7336fa3 1656
1657}
793ff80c 1658
1659//_____________________________________________________________________________
e23fbb27 1660void AliTRDdigitizer::DeConvExp(Double_t *source, Double_t *target
1661 , Int_t n, Int_t nexp)
1662{
1663 //
1664 // Does the deconvolution by the digital filter.
1665 //
1666 // Author: Marcus Gutfleisch, KIP Heidelberg
1667 // Optimized for: New TRF from Venelin Angelov, simulated with CADENCE
1668 // Pad-ground capacitance = 25 pF
1669 // Pad-pad cross talk capacitance = 6 pF
1670 // For 10 MHz digitization, corresponding to 20 time bins
1671 // in the drift region
1672 //
1673
1674 Double_t rates[2];
1675 Double_t coefficients[2];
81a6930e 1676 Double_t Dt = 0.100; // time bin width [mus] for 10 MHz sampling frequence
e23fbb27 1677
1678 /* initialize (coefficient = alpha, rates = lambda) */
1679
81a6930e 1680 rates[0] = 0.7680;
1681 rates[1] = 0.0995;
1682
1683 rates[0] = TMath::Exp(-Dt/(rates[0]));
1684 rates[1] = TMath::Exp(-Dt/(rates[1]));
1685
1686 // dummy initialization
1687 coefficients[0] = 0.0000;
1688 coefficients[1] = 0.0000;
1689
e23fbb27 1690 if( nexp == 1 ) {
81a6930e 1691 coefficients[0] = 0.0844;
1692 coefficients[1] = 0.0000;
e23fbb27 1693 }
1694 if( nexp == 2 ) {
81a6930e 1695 coefficients[0] = 0.1445;
1696 coefficients[1] = 0.7524;
e23fbb27 1697 }
1698
1699 Int_t i, k;
1700 Double_t reminder[2];
1701 Double_t correction, result;
1702
1703 /* attention: computation order is important */
1704 correction=0.0;
1705 for ( k = 0; k < nexp; k++ ) reminder[k]=0.0;
1706
1707 for ( i = 0; i < n; i++ ) {
1708 result = ( source[i] - correction ); /* no rescaling */
1709 target[i] = result;
1710
1711 for ( k = 0; k < nexp; k++ ) reminder[k] = rates[k]
1712 * ( reminder[k] + coefficients[k] * result);
1713
1714 correction=0.0;
1715 for ( k = 0; k < nexp; k++ ) correction += reminder[k];
1716 }
1717
1718}
1719
8e64dd77 1720//_____________________________________________________________________________
88cb7938 1721void AliTRDdigitizer::InitOutput(Int_t iEvent)
8e64dd77 1722{
1723 //
1724 // Initializes the output branches
1725 //
1726
1727 fEvent = iEvent;
88cb7938 1728
1729 if (!fRunLoader)
1730 {
1731 Error("InitOutput","Run Loader is NULL");
1732 return;
1733 }
1734 AliLoader* loader = fRunLoader->GetLoader("TRDLoader");
1735 if (!loader)
1736 {
1737 Error("Open","Can not get TRD loader from Run Loader");
1738 return;
1739 }
1740
1741 TTree* tree = 0;
1742
1743 if (fSDigits)
1744 {
1745 //if we produce SDigits
1746 tree = loader->TreeS();
1747 if (!tree)
1748 {
1749 loader->MakeTree("S");
1750 tree = loader->TreeS();
1751 }
1752 }
1753 else
1754 {//if we produce Digits
1755 tree = loader->TreeD();
1756 if (!tree)
1757 {
1758 loader->MakeTree("D");
1759 tree = loader->TreeD();
1760 }
1761 }
1762 fDigitsManager->SetEvent(iEvent);
1763 fDigitsManager->MakeBranch(tree);
8e64dd77 1764
1765}
3551db50 1766
1767//_____________________________________________________________________________
1768Double_t AliTRDdigitizer::TimeStruct(Float_t vdrift, Double_t dist, Double_t z)
1769{
1770 //
1771 // Applies the time structure of the drift cells (by C.Lippmann).
1772 // The drift time of electrons to the anode wires depends on the
1773 // distance to the wire (z) and on the position in the drift region.
1774 //
1775 // input :
1776 // dist = radial distance from (cathode) pad plane [cm]
1777 // z = distance from anode wire (parallel to cathode planes) [cm]
1778 //
1779 // output :
1780 // tdrift = the drift time of an electron at the given position
1781 //
1782 // We interpolate between the drift time values at the two drift
1783 // velocities fVDlo and fVDhi, being smaller and larger than
1784 // fDriftVelocity. We use the two stored drift time maps fTimeStruct1
1785 // and fTimeStruct2, calculated for the two mentioned drift velocities.
1786 //
1787
1788 SampleTimeStruct(vdrift);
1789
1790 // indices:
1791 Int_t r1 = (Int_t)(10*dist);
1792 Int_t r2 = r1+1;
1793 if (r1<0) r1 = 0;
1794 if (r1>37) r1 = 37;
1795 const Int_t kz1 = (Int_t)(100*z/2.5);
1796 const Int_t kz2 = kz1+1;
1797
1798 if (r1<0 || r1>37 || kz1<0 || kz1>10) {
1799 printf("<AliTRDparameter::TimeStruct> Warning. Indices out of range: ");
1800 printf("dist=%.2f, z=%.2f, r1=%d, kz1=%d\n",dist,z,r1,kz1);
1801 }
1802
1803 const Float_t ky111 = fTimeStructInfo.fTimeStruct1[r1+38*kz1];
1804 const Float_t ky221 = (r2 <= 37 && kz2 <= 10) ? fTimeStructInfo.fTimeStruct1[r2+38*kz2] : fTimeStructInfo.fTimeStruct1[37+38*10];
1805 const Float_t ky121 = (kz2 <= 10) ? fTimeStructInfo.fTimeStruct1[r1+38*kz2] : fTimeStructInfo.fTimeStruct1[r1+38*10];
1806 const Float_t ky211 = (r2 <= 37) ? fTimeStructInfo.fTimeStruct1[r2+38*kz1] : fTimeStructInfo.fTimeStruct1[37+38*kz1];
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
1812 const Float_t ky112 = fTimeStructInfo.fTimeStruct2[r1+38*kz1];
1813 const Float_t ky222 = (r2 <= 37 && kz2 <= 10) ? fTimeStructInfo.fTimeStruct2[r2+38*kz2] : fTimeStructInfo.fTimeStruct2[37+38*10];
1814 const Float_t ky122 = (kz2 <= 10) ? fTimeStructInfo.fTimeStruct2[r1+38*kz2] : fTimeStructInfo.fTimeStruct2[r1+38*10];
1815 const Float_t ky212 = (r2 <= 37) ? fTimeStructInfo.fTimeStruct2[r2+38*kz1] : fTimeStructInfo.fTimeStruct2[37+38*kz1];
1816
1817 // 2D Interpolation, larger drift time map
1818 const Float_t ky12 = (ky212-ky112)*10*dist + ky112 - (ky212-ky112)*r1;
1819 const Float_t ky22 = (ky222-ky122)*10*dist + ky122 - (ky222-ky122)*r1;
1820
1821 // dist now is the drift distance to the anode wires (negative if electrons are
1822 // between anode wire plane and cathode pad plane)
1823 dist -= AliTRDgeometry::AmThick()/2.0;
1824
1825 // Get the drift times for the drift velocities fVDlo and fVDhi
1826 const Float_t ktdrift1 =
1827 ( TMath::Abs(dist)>0.005 || z>0.005 ) ? (ky21-ky11)*100*z/2.5+ky11-(ky21-ky11)*kz1 : 0.0;
1828 const Float_t ktdrift2 =
1829 ( TMath::Abs(dist)>0.005 || z>0.005 ) ? (ky22-ky12)*100*z/2.5+ky12-(ky22-ky12)*kz1 : 0.0;
1830
1831 // 1D Interpolation between the values at fVDlo and fVDhi
1832 Float_t a = (ktdrift2 - ktdrift1) / (fTimeStructInfo.fVDhi - fTimeStructInfo.fVDlo);
1833 Float_t b = ktdrift2 - a * fTimeStructInfo.fVDhi;
1834
1835
1836 //printf("(%.2f, %.2f): %f, %f -> %f\n",
1837 // dist+AliTRDgeometry::AmThick()/2.0, z, ktdrift1, ktdrift2, a*fDriftVelocity+b);
1838
1839 return a * vdrift + b;
1840
1841}
1842
1843//_____________________________________________________________________________
1844void AliTRDdigitizer::SampleTimeStruct(Float_t vdrift)
1845{
1846 //
1847 // Samples the timing structure of a drift cell
1848 // Drift Time data calculated with Garfield (by C.Lippmann)
1849 //
1850
1851 //TODO make caching proper, if same timing structure is selected: do not update timestructs!
1852
1853 if (vdrift == fTimeStructInfo.fLastVdrift)
1854 return;
1855
1856 fTimeStructInfo.fLastVdrift = vdrift;
1857
1858 // drift time maps are saved for some drift velocity values (in drift region):
1859 Float_t fVDsmp[8];
1860 fVDsmp[0] = 1.032;
1861 fVDsmp[1] = 1.158;
1862 fVDsmp[2] = 1.299;
1863 fVDsmp[3] = 1.450;
1864 fVDsmp[4] = 1.610;
1865 fVDsmp[5] = 1.783;
1866 fVDsmp[6] = 1.959;
1867 fVDsmp[7] = 2.134;
1868
1869 if ( vdrift < fVDsmp[0] ) {
1870 printf("<AliTRDparameter::SampleTimeStruct> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n");
1871 printf("<AliTRDparameter::SampleTimeStruct> Drift Velocity too small (%.3f<%.3f)\n"
1872 , vdrift, fVDsmp[0]);
1873 printf("<AliTRDparameter::SampleTimeStruct> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n");
1874 vdrift = fVDsmp[0];
1875 } else if ( vdrift > fVDsmp[7] ) {
1876 printf("<AliTRDparameter::SampleTimeStruct> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n");
1877 printf("<AliTRDparameter::SampleTimeStruct> Drift Velocity too large (%.3f>%.3f)\n"
1878 , vdrift,fVDsmp[6]);
1879 printf("<AliTRDparameter::SampleTimeStruct> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n");
1880 vdrift = fVDsmp[7];
1881 }
1882
1883 const Int_t ktimebin = 38;
1884 const Int_t kZbin = 11;
1885
1886 // Garfield simulation at UD = -1500V; vd = 1.032cm/microsec, <driftfield> = 525V/cm
1887 Float_t time1500[ktimebin][kZbin] =
1888 {{0.09170, 0.09205, 0.09306, 0.09475, 0.09716, 0.10035,
1889 0.10445, 0.10993, 0.11838, 0.13986, 0.37858},
1890 {0.06588, 0.06626, 0.06739, 0.06926, 0.07186, 0.07524,
1891 0.07951, 0.08515, 0.09381, 0.11601, 0.35673},
1892 {0.03946, 0.04003, 0.04171, 0.04435, 0.04780, 0.05193,
1893 0.05680, 0.06306, 0.07290, 0.09873, 0.34748},
1894 {0.01151, 0.01283, 0.01718, 0.02282, 0.02880, 0.03479,
1895 0.04098, 0.04910, 0.06413, 0.10567, 0.36897},
1896 {0.01116, 0.01290, 0.01721, 0.02299, 0.02863, 0.03447,
1897 0.04074, 0.04984, 0.06839, 0.11625, 0.37277},
1898 {0.03919, 0.03974, 0.04131, 0.04380, 0.04703, 0.05102,
1899 0.05602, 0.06309, 0.07651, 0.10938, 0.36838},
1900 {0.06493, 0.06560, 0.06640, 0.06802, 0.07051, 0.07392,
1901 0.07853, 0.08510, 0.09690, 0.12621, 0.38058},
1902 {0.09174, 0.09186, 0.09225, 0.09303, 0.09477, 0.00000,
1903 0.11205, 0.11952, 0.13461, 0.16984, 0.43017},
1904 {0.14356, 0.14494, 0.14959, 0.16002, 0.18328, 0.27981,
1905 0.22785, 0.21240, 0.21948, 0.25965, 0.52392},
1906 {0.23120, 0.23366, 0.24046, 0.25422, 0.28071, 0.36914,
1907 0.32999, 0.31208, 0.31772, 0.35804, 0.62249},
1908 {0.32686, 0.32916, 0.33646, 0.35053, 0.37710, 0.46292,
1909 0.42773, 0.40948, 0.41497, 0.45527, 0.71955},
1910 {0.42353, 0.42583, 0.43317, 0.44727, 0.47380, 0.55884,
1911 0.52479, 0.50650, 0.51194, 0.55225, 0.81658},
1912 {0.52038, 0.52271, 0.53000, 0.54415, 0.57064, 0.65545,
1913 0.62172, 0.60341, 0.60885, 0.64915, 0.91339},
1914 {0.61724, 0.61953, 0.62694, 0.64098, 0.66756, 0.75226,
1915 0.71862, 0.70030, 0.70575, 0.74604, 1.01035},
1916 {0.71460, 0.71678, 0.72376, 0.73786, 0.76447, 0.84913,
1917 0.81551, 0.79720, 0.80264, 0.84292, 1.10723},
1918 {0.81101, 0.81334, 0.82066, 0.83475, 0.86127, 0.94599,
1919 0.91240, 0.89408, 0.89952, 0.93981, 1.20409},
1920 {0.90788, 0.91023, 0.91752, 0.93163, 0.95815, 1.04293,
1921 1.00929, 0.99096, 0.99640, 1.03669, 1.30106},
1922 {1.00477, 1.00707, 1.01449, 1.02852, 1.05504, 1.13976,
1923 1.10617, 1.08784, 1.09329, 1.13358, 1.39796},
1924 {1.10166, 1.10397, 1.11130, 1.12541, 1.15257, 1.23672,
1925 1.20307, 1.18472, 1.19018, 1.23046, 1.49486},
1926 {1.19854, 1.20084, 1.20818, 1.22235, 1.24885, 1.33355,
1927 1.29992, 1.28156, 1.28707, 1.32735, 1.59177},
1928 {1.29544, 1.29780, 1.30507, 1.31917, 1.34575, 1.43073,
1929 1.39681, 1.37851, 1.38396, 1.42377, 1.68854},
1930 {1.39236, 1.39462, 1.40205, 1.41607, 1.44259, 1.52745,
1931 1.49368, 1.47541, 1.48083, 1.52112, 1.78546},
1932 {1.49314, 1.49149, 1.49885, 1.51297, 1.53949, 1.62420,
1933 1.59016, 1.57231, 1.57772, 1.61800, 1.88048},
1934 {1.58610, 1.58839, 1.59572, 1.60983, 1.63635, 1.72109,
1935 1.68651, 1.66921, 1.67463, 1.71489, 1.97918},
1936 {1.68400, 1.68529, 1.69261, 1.70671, 1.73331, 1.81830,
1937 1.78341, 1.76605, 1.77150, 1.81179, 2.07608},
1938 {1.77991, 1.78215, 1.78952, 1.80385, 1.83014, 1.91486,
1939 1.88128, 1.86215, 1.86837, 1.90865, 2.17304},
1940 {1.87674, 1.87904, 1.88647, 1.90052, 1.92712, 2.01173,
1941 1.97812, 1.95905, 1.96527, 2.00710, 2.26979},
1942 {1.97369, 1.97594, 1.98326, 1.99869, 2.02442, 2.10865,
1943 2.07501, 2.05666, 2.06214, 2.10243, 2.36669},
1944 {2.07052, 2.07281, 2.08016, 2.09425, 2.12132, 2.20555,
1945 2.17182, 2.15341, 2.15904, 2.19933, 2.46363},
1946 {2.16742, 2.16971, 2.17707, 2.19114, 2.21766, 2.30240,
1947 2.26877, 2.25015, 2.25573, 2.29586, 2.56060},
1948 {2.26423, 2.26659, 2.27396, 2.28803, 2.31456, 2.40828,
1949 2.36567, 2.34705, 2.35282, 2.39765, 2.65744},
1950 {2.36153, 2.36349, 2.37330, 2.38501, 2.41159, 2.49940,
1951 2.46257, 2.44420, 2.44843, 2.48987, 2.75431},
1952 {2.46558, 2.46035, 2.46822, 2.48181, 2.50849, 2.59630,
1953 2.55947, 2.54112, 2.54513, 2.58677, 2.85094},
1954 {2.56248, 2.55723, 2.56486, 2.57871, 2.60520, 2.68998,
1955 2.65626, 2.63790, 2.64316, 2.68360, 2.94813},
1956 {2.65178, 2.65441, 2.66153, 2.67556, 2.70210, 2.78687,
1957 2.75319, 2.73463, 2.74032, 2.78060, 3.04503},
1958 {2.74868, 2.75131, 2.75870, 2.77245, 2.79385, 2.88700,
1959 2.85009, 2.83177, 2.83723, 2.87750, 3.14193},
1960 {2.84574, 2.84789, 2.85560, 2.86935, 2.89075, 2.98060,
1961 2.94576, 2.92868, 2.93356, 2.97436, 3.23868},
1962 {2.94239, 2.94469, 2.95221, 2.96625, 2.99345, 3.07747,
1963 3.04266, 3.02545, 3.03051, 3.07118, 3.33555}};
1964
1965 // Garfield simulation at UD = -1600V; vd = 1.158cm/microsec, <driftfield> = 558V/cm
1966 Float_t time1600[ktimebin][kZbin] =
1967 {{0.09169, 0.09203, 0.09305, 0.09473, 0.09714, 0.10032,
1968 0.10441, 0.10990, 0.11835, 0.13986, 0.37845},
1969 {0.06589, 0.06626, 0.06738, 0.06924, 0.07184, 0.07521,
1970 0.07947, 0.08512, 0.09379, 0.11603, 0.35648},
1971 {0.03947, 0.04003, 0.04171, 0.04434, 0.04778, 0.05190,
1972 0.05678, 0.06304, 0.07292, 0.09876, 0.34759},
1973 {0.01111, 0.01281, 0.01718, 0.02281, 0.02879, 0.03477,
1974 0.04097, 0.04910, 0.06415, 0.10573, 0.36896},
1975 {0.01120, 0.01311, 0.01721, 0.02279, 0.02862, 0.03446,
1976 0.04074, 0.04981, 0.06825, 0.11595, 0.37255},
1977 {0.03919, 0.03980, 0.04132, 0.04380, 0.04704, 0.05102,
1978 0.05602, 0.06302, 0.07633, 0.10896, 0.36743},
1979 {0.06531, 0.06528, 0.06631, 0.06805, 0.07053, 0.07392,
1980 0.07853, 0.08505, 0.09669, 0.12578, 0.37967},
1981 {0.09157, 0.09171, 0.09216, 0.09301, 0.09475, 0.00000,
1982 0.11152, 0.11879, 0.13352, 0.16802, 0.42750},
1983 {0.13977, 0.14095, 0.14509, 0.15433, 0.17534, 0.26406,
1984 0.21660, 0.20345, 0.21113, 0.25067, 0.51434},
1985 {0.21816, 0.22041, 0.22631, 0.23850, 0.26208, 0.34340,
1986 0.30755, 0.29237, 0.29878, 0.33863, 0.60258},
1987 {0.30344, 0.30547, 0.31241, 0.32444, 0.34809, 0.42696,
1988 0.39464, 0.37919, 0.38546, 0.42530, 0.68926},
1989 {0.38969, 0.39164, 0.39810, 0.41059, 0.43441, 0.51246,
1990 0.48112, 0.46562, 0.47191, 0.51172, 0.77558},
1991 {0.47592, 0.47799, 0.48442, 0.49689, 0.52061, 0.59855,
1992 0.56752, 0.55201, 0.55826, 0.59808, 0.86202},
1993 {0.56226, 0.56428, 0.57074, 0.58324, 0.60696, 0.68483,
1994 0.65388, 0.63837, 0.64461, 0.68445, 0.94830},
1995 {0.64881, 0.65063, 0.65709, 0.66958, 0.69331, 0.77117,
1996 0.74023, 0.72472, 0.73098, 0.77079, 1.03486},
1997 {0.73506, 0.73698, 0.74344, 0.75596, 0.77964, 0.85751,
1998 0.82658, 0.81107, 0.81731, 0.85712, 1.12106},
1999 {0.82132, 0.82333, 0.82979, 0.84228, 0.86608, 0.94386,
2000 0.91293, 0.89742, 0.90367, 0.94335, 1.20737},
2001 {0.90767, 0.90968, 0.91614, 0.92863, 0.95236, 1.03021,
2002 0.99928, 0.98377, 0.99001, 1.02984, 1.29371},
2003 {0.99410, 0.99602, 1.00257, 1.01498, 1.03869, 1.11720,
2004 1.08563, 1.07011, 1.07637, 1.11621, 1.37873},
2005 {1.08036, 1.08240, 1.08884, 1.10138, 1.12504, 1.20301,
2006 1.17198, 1.15647, 1.16272, 1.20255, 1.46651},
2007 {1.16670, 1.16872, 1.17525, 1.18783, 1.21139, 1.28934,
2008 1.25833, 1.24281, 1.24909, 1.28889, 1.55275},
2009 {1.25307, 1.25510, 1.26153, 1.27404, 1.29773, 1.37584,
2010 1.34469, 1.32916, 1.33536, 1.37524, 1.63915},
2011 {1.33942, 1.34146, 1.34788, 1.36040, 1.38410, 1.46438,
2012 1.43105, 1.41537, 1.42176, 1.46158, 1.72538},
2013 {1.42579, 1.42782, 1.43458, 1.44674, 1.47043, 1.55085,
2014 1.51675, 1.50168, 1.50810, 1.54793, 1.81174},
2015 {1.51207, 1.51454, 1.52060, 1.53307, 1.55684, 1.63478,
2016 1.60336, 1.58820, 1.59446, 1.63414, 1.89814},
2017 {1.59856, 1.60047, 1.60693, 1.61942, 1.64317, 1.72257,
2018 1.69008, 1.67454, 1.68080, 1.72063, 1.98433},
2019 {1.68481, 1.68682, 1.69330, 1.70584, 1.72949, 1.80752,
2020 1.77643, 1.76089, 1.76716, 1.80692, 2.07069},
2021 {1.77117, 1.77319, 1.77969, 1.79260, 1.81583, 1.89376,
2022 1.86226, 1.84720, 1.85355, 1.89256, 2.15343},
2023 {1.85748, 1.85967, 1.86605, 1.87848, 1.90222, 1.98010,
2024 1.94913, 1.93271, 1.93981, 1.97968, 2.24355},
2025 {1.94386, 1.94587, 1.95233, 1.96484, 1.98854, 2.06646,
2026 2.03542, 2.01755, 2.02617, 2.06604, 2.32993},
2027 {2.03022, 2.03230, 2.03868, 2.05134, 2.07488, 2.15367,
2028 2.12178, 2.10391, 2.11252, 2.15432, 2.41623},
2029 {2.11656, 2.11857, 2.12505, 2.13772, 2.16147, 2.23919,
2030 2.20817, 2.19265, 2.20744, 2.23872, 2.49996},
2031 {2.20291, 2.20611, 2.21137, 2.22387, 2.24758, 2.32563,
2032 2.29450, 2.27901, 2.28525, 2.32507, 2.58897},
2033 {2.28922, 2.29172, 2.29774, 2.31345, 2.33400, 2.41287,
2034 2.38086, 2.36535, 2.37160, 2.40869, 2.67113},
2035 {2.37572, 2.37764, 2.38410, 2.39803, 2.42046, 2.49817,
2036 2.46721, 2.45171, 2.45794, 2.49505, 2.76061},
2037 {2.46190, 2.46396, 2.47043, 2.48340, 2.50665, 2.58453,
2038 2.55357, 2.53728, 2.54430, 2.58407, 2.84816},
2039 {2.54833, 2.55032, 2.55679, 2.56976, 2.59312, 2.67103,
2040 2.63993, 2.62364, 2.63062, 2.67040, 2.93444},
2041 {2.63456, 2.63660, 2.64304, 2.65555, 2.67938, 2.75739,
2042 2.72629, 2.71064, 2.71688, 2.75671, 3.01886}};
2043
2044 // Garfield simulation at UD = -1700V; vd = 1.299cm/microsec, <driftfield> = 590V/cm
2045 Float_t time1700[ktimebin][kZbin] =
2046 {{0.09167, 0.09201, 0.09302, 0.09471, 0.09712, 0.10029,
2047 0.10438, 0.10986, 0.11832, 0.13986, 0.37824},
2048 {0.06591, 0.06626, 0.06736, 0.06923, 0.07183, 0.07519,
2049 0.07944, 0.08511, 0.09378, 0.11603, 0.35625},
2050 {0.03946, 0.04003, 0.04170, 0.04433, 0.04777, 0.05189,
2051 0.05676, 0.06301, 0.07291, 0.09880, 0.34724},
2052 {0.01110, 0.01281, 0.01718, 0.02280, 0.02879, 0.03476,
2053 0.04096, 0.04910, 0.06417, 0.10582, 0.36861},
2054 {0.01115, 0.01294, 0.01721, 0.02276, 0.02862, 0.03447,
2055 0.04074, 0.04980, 0.06812, 0.11565, 0.37231},
2056 {0.03920, 0.03974, 0.04133, 0.04381, 0.04706, 0.05105,
2057 0.05603, 0.06299, 0.07618, 0.10860, 0.36646},
2058 {0.06498, 0.06529, 0.06634, 0.06808, 0.07055, 0.07395,
2059 0.07852, 0.08500, 0.09650, 0.12532, 0.37850},
2060 {0.09143, 0.09159, 0.09207, 0.09297, 0.09473, 0.00000,
2061 0.11102, 0.11809, 0.13245, 0.16627, 0.42496},
2062 {0.13646, 0.13750, 0.14112, 0.14926, 0.16806, 0.24960,
2063 0.20627, 0.19536, 0.20366, 0.24256, 0.50557},
2064 {0.20678, 0.20848, 0.21384, 0.22450, 0.24552, 0.32018,
2065 0.28740, 0.27477, 0.28196, 0.32128, 0.58475},
2066 {0.28287, 0.28461, 0.29020, 0.30108, 0.32224, 0.39467,
2067 0.36500, 0.35217, 0.35926, 0.39860, 0.66194},
2068 {0.35972, 0.36145, 0.36713, 0.37797, 0.39912, 0.47091,
2069 0.44212, 0.42925, 0.43632, 0.47563, 0.73892},
2070 {0.43667, 0.43841, 0.44413, 0.45494, 0.47607, 0.54780,
2071 0.51912, 0.50627, 0.51334, 0.55254, 0.81595},
2072 {0.51365, 0.51540, 0.52101, 0.53193, 0.55305, 0.62463,
2073 0.59617, 0.58328, 0.59035, 0.62965, 0.89303},
2074 {0.59064, 0.59240, 0.59801, 0.60893, 0.63009, 0.70169,
2075 0.67317, 0.66028, 0.66735, 0.70666, 0.96995},
2076 {0.66765, 0.66939, 0.67501, 0.68592, 0.70724, 0.77863,
2077 0.75016, 0.73728, 0.74435, 0.78366, 1.04696},
2078 {0.74464, 0.74636, 0.75200, 0.76293, 0.78405, 0.85561,
2079 0.82716, 0.81427, 0.82133, 0.86064, 1.12396},
2080 {0.82165, 0.82340, 0.82902, 0.83991, 0.86104, 0.93266,
2081 0.90414, 0.89128, 0.89834, 0.93763, 1.20100},
2082 {0.89863, 0.90042, 0.90659, 0.91705, 0.93805, 1.00960,
2083 0.98115, 0.96825, 0.97533, 1.01462, 1.27801},
2084 {0.97563, 0.97740, 0.98310, 0.99391, 1.01504, 1.08659,
2085 1.05814, 1.04526, 1.05233, 1.09163, 1.35503},
2086 {1.05276, 1.05451, 1.06002, 1.07090, 1.09099, 1.16357,
2087 1.13516, 1.12225, 1.12933, 1.16863, 1.43195},
2088 {1.12977, 1.13138, 1.13700, 1.14792, 1.16797, 1.24061,
2089 1.21212, 1.19926, 1.20626, 1.24554, 1.50900},
2090 {1.20664, 1.20839, 1.21400, 1.22490, 1.24606, 1.31772,
2091 1.28914, 1.27382, 1.28329, 1.32262, 1.58550},
2092 {1.28367, 1.28541, 1.29099, 1.30189, 1.32312, 1.39460,
2093 1.36612, 1.34924, 1.36030, 1.39961, 1.66310},
2094 {1.36064, 1.36249, 1.36799, 1.37896, 1.40004, 1.48030,
2095 1.44314, 1.43032, 1.43731, 1.47659, 1.73442},
2096 {1.43762, 1.43937, 1.44497, 1.45618, 1.47704, 1.54932,
2097 1.52012, 1.50725, 1.51430, 1.55357, 1.81708},
2098 {1.51462, 1.51937, 1.52203, 1.53316, 1.55403, 1.62572,
2099 1.59713, 1.58424, 1.59128, 1.63061, 1.89406},
2100 {1.59162, 1.59338, 1.59947, 1.60989, 1.63103, 1.70270,
2101 1.67411, 1.66124, 1.66799, 1.70759, 1.97103},
2102 {1.66874, 1.67037, 1.67597, 1.68687, 1.70814, 1.77969,
2103 1.75112, 1.73806, 1.74530, 1.78457, 2.04794},
2104 {1.74693, 1.74749, 1.75297, 1.76476, 1.78500, 1.85667,
2105 1.82811, 1.81504, 1.82101, 1.86161, 2.12492},
2106 {1.82260, 1.82437, 1.82995, 1.84174, 1.86202, 1.93372,
2107 1.90509, 1.89202, 1.89930, 1.93859, 2.20189},
2108 {1.89964, 1.90135, 1.90693, 1.91789, 1.93952, 2.01080,
2109 1.98207, 1.96921, 1.97628, 2.01384, 2.27887},
2110 {1.97662, 1.97917, 1.98611, 1.99487, 2.01601, 2.08778,
2111 2.05846, 2.04623, 2.05330, 2.09244, 2.35585},
2112 {2.05359, 2.05615, 2.06309, 2.07187, 2.09867, 2.16459,
2113 2.13610, 2.12322, 2.13029, 2.16942, 2.43199},
2114 {2.13063, 2.13233, 2.13795, 2.14886, 2.17008, 2.24199,
2115 2.21310, 2.20020, 2.20727, 2.24659, 2.50983},
2116 {2.20761, 2.20931, 2.21955, 2.22624, 2.24708, 2.32147,
2117 2.29009, 2.27725, 2.28276, 2.32359, 2.58680},
2118 {2.28459, 2.29108, 2.29202, 2.30286, 2.32007, 2.39559,
2119 2.36683, 2.35422, 2.36119, 2.40058, 2.66081},
2120 {2.36153, 2.36806, 2.36889, 2.37985, 2.40092, 2.47828,
2121 2.44381, 2.43099, 2.43819, 2.47750, 2.73779}};
2122
2123 // Garfield simulation at UD = -1800V; vd = 1.450cm/microsec, <driftfield> = 623V/cm
2124 Float_t time1800[ktimebin][kZbin] =
2125 {{0.09166, 0.09199, 0.09300, 0.09470, 0.09709, 0.10026,
2126 0.10434, 0.10983, 0.11831, 0.13987, 0.37802},
2127 {0.06585, 0.06623, 0.06735, 0.06921, 0.07180, 0.07520,
2128 0.07941, 0.08507, 0.09376, 0.11604, 0.35624},
2129 {0.03945, 0.04004, 0.04169, 0.04432, 0.04776, 0.05187,
2130 0.05674, 0.06300, 0.07290, 0.09884, 0.34704},
2131 {0.01108, 0.01287, 0.01717, 0.02280, 0.02880, 0.03476,
2132 0.04095, 0.04909, 0.06419, 0.10589, 0.36843},
2133 {0.01115, 0.01287, 0.01720, 0.02276, 0.02862, 0.03448,
2134 0.04073, 0.04973, 0.06799, 0.11535, 0.37224},
2135 {0.03918, 0.03975, 0.04134, 0.04382, 0.04707, 0.05105,
2136 0.05603, 0.06296, 0.07605, 0.10822, 0.36560},
2137 {0.06498, 0.06532, 0.06635, 0.06809, 0.07058, 0.07395,
2138 0.07855, 0.08495, 0.09632, 0.12488, 0.37730},
2139 {0.09130, 0.09160, 0.09199, 0.09300, 0.09472, 0.00000,
2140 0.11059, 0.11747, 0.13146, 0.16462, 0.42233},
2141 {0.13364, 0.13449, 0.13767, 0.14481, 0.16147, 0.23635,
2142 0.19706, 0.18812, 0.19704, 0.23520, 0.49749},
2143 {0.19698, 0.19844, 0.20311, 0.21236, 0.23082, 0.29920,
2144 0.26936, 0.25927, 0.26732, 0.30601, 0.56871},
2145 {0.26518, 0.26670, 0.27160, 0.28099, 0.29955, 0.36597,
2146 0.33885, 0.32858, 0.33653, 0.37524, 0.63801},
2147 {0.33441, 0.33553, 0.34040, 0.34987, 0.36841, 0.43428,
2148 0.40797, 0.39763, 0.40556, 0.44425, 0.70698},
2149 {0.40296, 0.40447, 0.40934, 0.41881, 0.43737, 0.50306,
2150 0.47695, 0.46662, 0.47455, 0.51329, 0.77600},
2151 {0.47296, 0.47344, 0.47830, 0.48779, 0.50632, 0.57200,
2152 0.54593, 0.53559, 0.54351, 0.58222, 0.84489},
2153 {0.54089, 0.54264, 0.54727, 0.55673, 0.57529, 0.64094,
2154 0.61490, 0.60457, 0.61249, 0.65118, 0.91394},
2155 {0.60987, 0.61138, 0.61624, 0.62573, 0.64428, 0.70989,
2156 0.68397, 0.67354, 0.68147, 0.72015, 0.98291},
2157 {0.67883, 0.68035, 0.68521, 0.69469, 0.71324, 0.77896,
2158 0.75287, 0.74251, 0.75043, 0.78912, 1.04458},
2159 {0.74780, 0.74932, 0.75421, 0.76367, 0.78221, 0.84785,
2160 0.82185, 0.81148, 0.81941, 0.85811, 1.12085},
2161 {0.81690, 0.81830, 0.82316, 0.83263, 0.85120, 0.91683,
2162 0.89077, 0.88045, 0.88837, 0.92707, 1.18976},
2163 {0.88574, 0.88726, 0.89228, 0.90198, 0.92017, 0.98578,
2164 0.95974, 0.94947, 0.95734, 0.99604, 1.25873},
2165 {0.95493, 0.95624, 0.96110, 0.97058, 0.98913, 1.05481,
2166 1.02873, 1.01839, 1.02631, 1.06503, 1.32772},
2167 {1.02392, 1.02524, 1.03008, 1.03955, 1.05810, 1.12378,
2168 1.09757, 1.08605, 1.09530, 1.13399, 1.39669},
2169 {1.09270, 1.09418, 1.09911, 1.10854, 1.12714, 1.19281,
2170 1.16502, 1.15633, 1.16427, 1.20271, 1.46574},
2171 {1.16168, 1.16323, 1.16801, 1.17772, 1.19604, 1.26190,
2172 1.23399, 1.22531, 1.23323, 1.27194, 1.53475},
2173 {1.23061, 1.23214, 1.23698, 1.24669, 1.26503, 1.33073,
2174 1.30461, 1.29428, 1.30220, 1.34091, 1.60372},
2175 {1.29960, 1.30110, 1.30596, 1.31544, 1.33398, 1.39962,
2176 1.37228, 1.36323, 1.37121, 1.40988, 1.67273},
2177 {1.36851, 1.37007, 1.37512, 1.38441, 1.40297, 1.46865,
2178 1.44256, 1.43222, 1.44017, 1.47878, 1.74155},
2179 {1.43752, 1.43904, 1.44773, 1.45338, 1.47220, 1.53759,
2180 1.51136, 1.50119, 1.50914, 1.54775, 1.81050},
2181 {1.50646, 1.50802, 1.51288, 1.52237, 1.54097, 1.60697,
2182 1.58049, 1.57018, 1.57811, 1.61678, 1.87947},
2183 {1.57545, 1.57720, 1.58185, 1.59134, 1.60996, 1.67787,
2184 1.64929, 1.63914, 1.64707, 1.68570, 1.94851},
2185 {1.64442, 1.64617, 1.65081, 1.66035, 1.67893, 1.74684,
2186 1.71826, 1.70745, 1.71604, 1.75310, 2.01748},
2187 {1.71337, 1.71513, 1.71978, 1.72932, 1.74645, 1.81346,
2188 1.78739, 1.77642, 1.78501, 1.82151, 2.08644},
2189 {1.78238, 1.78410, 1.78876, 1.79824, 1.81678, 1.88332,
2190 1.85639, 1.84262, 1.85397, 1.89270, 2.15533},
2191 {1.85135, 1.85306, 1.85778, 1.86728, 1.88580, 1.95615,
2192 1.92536, 1.91171, 1.92283, 1.96165, 2.22428},
2193 {1.92774, 1.92184, 1.92672, 1.93618, 1.95477, 2.02048,
2194 1.99427, 1.98068, 1.99192, 2.03062, 2.29338},
2195 {1.98929, 1.99081, 1.99567, 2.00515, 2.02373, 2.08987,
2196 2.06332, 2.05249, 2.05939, 2.09928, 2.36227},
2197 {2.05829, 2.05978, 2.06464, 2.07414, 2.09272, 2.15850,
2198 2.12928, 2.12194, 2.12987, 2.16825, 2.43083},
2199 {2.12726, 2.12869, 2.13360, 2.14425, 2.16160, 2.22872,
2200 2.20118, 2.19078, 2.19876, 2.23416, 2.50007}};
2201
2202 // Garfield simulation at UD = -1900V; vd = 1.610cm/microsec, <driftfield> = 655V/cm
2203 Float_t time1900[ktimebin][kZbin] =
2204 {{0.09166, 0.09198, 0.09298, 0.09467, 0.09707, 0.10023,
2205 0.10431, 0.10980, 0.11828, 0.13988, 0.37789},
2206 {0.06584, 0.06622, 0.06735, 0.06920, 0.07179, 0.07514,
2207 0.07938, 0.08505, 0.09374, 0.11606, 0.35599},
2208 {0.03945, 0.04002, 0.04169, 0.04432, 0.04775, 0.05185,
2209 0.05672, 0.06298, 0.07290, 0.09888, 0.34695},
2210 {0.01109, 0.01281, 0.01717, 0.02279, 0.02878, 0.03476,
2211 0.04094, 0.04909, 0.06421, 0.10597, 0.36823},
2212 {0.01115, 0.01287, 0.01720, 0.02294, 0.02862, 0.03448,
2213 0.04074, 0.04973, 0.06783, 0.11506, 0.37206},
2214 {0.03940, 0.03975, 0.04135, 0.04386, 0.04708, 0.05106,
2215 0.05604, 0.06293, 0.07592, 0.10787, 0.36484},
2216 {0.06500, 0.06534, 0.06638, 0.06811, 0.07060, 0.07413,
2217 0.07852, 0.08491, 0.09614, 0.12446, 0.37626},
2218 {0.09119, 0.09140, 0.09194, 0.09293, 0.09471, 0.00000,
2219 0.11013, 0.11685, 0.13050, 0.16302, 0.41991},
2220 {0.13111, 0.13190, 0.13466, 0.14091, 0.15554, 0.22409,
2221 0.18846, 0.18167, 0.19113, 0.22854, 0.48995},
2222 {0.18849, 0.18975, 0.19380, 0.20185, 0.21797, 0.28050,
2223 0.25368, 0.24575, 0.25446, 0.29249, 0.55442},
2224 {0.24995, 0.25125, 0.25563, 0.26366, 0.27986, 0.34065,
2225 0.31605, 0.30815, 0.31680, 0.35482, 0.61697},
2226 {0.31187, 0.31324, 0.31745, 0.32580, 0.34205, 0.40217,
2227 0.37825, 0.37031, 0.37897, 0.41696, 0.67890},
2228 {0.37401, 0.37531, 0.37955, 0.38777, 0.40395, 0.46408,
2229 0.44037, 0.43242, 0.44108, 0.47906, 0.74122},
2230 {0.43610, 0.43741, 0.44161, 0.44986, 0.46604, 0.52614,
2231 0.50248, 0.49452, 0.50316, 0.54116, 0.80326},
2232 {0.49820, 0.49988, 0.50372, 0.51196, 0.52814, 0.58822,
2233 0.56459, 0.55661, 0.56527, 0.60326, 0.86526},
2234 {0.56032, 0.56161, 0.56582, 0.57408, 0.59024, 0.65032,
2235 0.62670, 0.61872, 0.62737, 0.66537, 0.92749},
2236 {0.62240, 0.62371, 0.62792, 0.63624, 0.65236, 0.71241,
2237 0.68881, 0.68081, 0.68947, 0.72750, 0.98941},
2238 {0.68449, 0.68581, 0.69002, 0.69828, 0.71444, 0.77452,
2239 0.75089, 0.74295, 0.75157, 0.78957, 1.05157},
2240 {0.74660, 0.74790, 0.75212, 0.76036, 0.77654, 0.83748,
2241 0.81299, 0.80501, 0.81193, 0.85168, 1.11375},
2242 {0.80870, 0.81017, 0.81423, 0.82246, 0.83867, 0.89908,
2243 0.87509, 0.86660, 0.87577, 0.91376, 1.17586},
2244 {0.87080, 0.87233, 0.87632, 0.88458, 0.90074, 0.96083,
2245 0.93718, 0.92922, 0.93787, 0.97588, 1.23794},
2246 {0.93291, 0.93422, 0.93844, 0.94667, 0.96293, 1.02295,
2247 0.99929, 0.99127, 0.99997, 1.03797, 1.29995},
2248 {0.99500, 0.99645, 1.00308, 1.00877, 1.02497, 1.08504,
2249 1.06140, 1.05343, 1.06203, 1.10006, 1.36216},
2250 {1.05712, 1.05926, 1.06262, 1.07092, 1.08706, 1.14754,
2251 1.12350, 1.11550, 1.12417, 1.16218, 1.42427},
2252 {1.11921, 1.12059, 1.12473, 1.13297, 1.14916, 1.21140,
2253 1.18560, 1.17284, 1.18625, 1.22414, 1.48629},
2254 {1.18140, 1.18262, 1.18690, 1.19508, 1.21125, 1.27139,
2255 1.24164, 1.23495, 1.24838, 1.28634, 1.54852},
2256 {1.24340, 1.24473, 1.24901, 1.25732, 1.27336, 1.33358,
2257 1.30793, 1.30179, 1.31047, 1.34848, 1.61066},
2258 {1.30551, 1.30684, 1.31104, 1.32056, 1.33553, 1.39609,
2259 1.37004, 1.36392, 1.37045, 1.41057, 1.67259},
2260 {1.36755, 1.36892, 1.37315, 1.39148, 1.39755, 1.45820,
2261 1.43215, 1.42602, 1.43467, 1.47268, 1.73477},
2262 {1.42966, 1.43101, 1.43549, 1.45359, 1.45976, 1.52031,
2263 1.49601, 1.48811, 1.49677, 1.53477, 1.79691},
2264 {1.49180, 1.49321, 1.49760, 1.51570, 1.52175, 1.58185,
2265 1.55771, 1.55023, 1.55888, 1.59672, 1.85501},
2266 {1.55391, 1.55527, 1.55943, 1.57782, 1.58391, 1.64395,
2267 1.62008, 1.61233, 1.62085, 1.65883, 1.92091},
2268 {1.61599, 1.61732, 1.62154, 1.63993, 1.64612, 1.70608,
2269 1.68237, 1.67108, 1.68301, 1.72110, 1.97931},
2270 {1.67808, 1.67948, 1.68364, 1.70204, 1.70823, 1.76858,
2271 1.74404, 1.73539, 1.74512, 1.78321, 2.04522},
2272 {1.74019, 1.74152, 1.74573, 1.76415, 1.77015, 1.83040,
2273 1.80615, 1.79366, 1.80723, 1.84509, 2.10742},
2274 {1.80235, 1.80362, 1.80783, 1.82626, 1.83227, 1.89246,
2275 1.86795, 1.85405, 1.86938, 1.90720, 2.16953},
2276 {1.86442, 1.86572, 1.86994, 1.88837, 1.89438, 1.95445,
2277 1.93006, 1.92283, 1.93148, 1.96931, 2.23147},
2278 {1.92700, 1.92783, 1.93197, 1.95049, 1.95649, 2.01668,
2279 1.99217, 1.98486, 1.99352, 2.03143, 2.29358}};
2280
2281 // Garfield simulation at UD = -2000V; vd = 1.783cm/microsec, <driftfield> = 688V/cm
2282 Float_t time2000[ktimebin][kZbin] =
2283 {{0.09176, 0.09196, 0.09296, 0.09465, 0.09704, 0.10020,
2284 0.10427, 0.10977, 0.11825, 0.13988, 0.37774},
2285 {0.06583, 0.06620, 0.06735, 0.06918, 0.07177, 0.07513,
2286 0.07936, 0.08503, 0.09372, 0.11606, 0.35586},
2287 {0.03944, 0.04001, 0.04170, 0.04431, 0.04774, 0.05184,
2288 0.05670, 0.06296, 0.07291, 0.09893, 0.34680},
2289 {0.01108, 0.01281, 0.01719, 0.02279, 0.02879, 0.03474,
2290 0.04093, 0.04908, 0.06422, 0.10605, 0.36800},
2291 {0.01114, 0.01287, 0.01720, 0.02276, 0.02863, 0.03449,
2292 0.04073, 0.04970, 0.06774, 0.11478, 0.37179},
2293 {0.03925, 0.03977, 0.04135, 0.04386, 0.04711, 0.05108,
2294 0.05604, 0.06290, 0.07580, 0.10748, 0.36386},
2295 {0.06501, 0.06536, 0.06640, 0.06814, 0.07062, 0.07398,
2296 0.07852, 0.08487, 0.09598, 0.12405, 0.37519},
2297 {0.09109, 0.09127, 0.09188, 0.09292, 0.09472, 0.00000,
2298 0.10964, 0.11630, 0.12960, 0.16150, 0.41765},
2299 {0.12898, 0.12968, 0.13209, 0.13749, 0.15034, 0.21286,
2300 0.18088, 0.17590, 0.18591, 0.22254, 0.48315},
2301 {0.18122, 0.18227, 0.18574, 0.19263, 0.20674, 0.26376,
2302 0.23960, 0.23375, 0.24316, 0.28047, 0.54179},
2303 {0.23674, 0.23784, 0.24142, 0.24847, 0.26264, 0.31810,
2304 0.29602, 0.29008, 0.29944, 0.33675, 0.59795},
2305 {0.29279, 0.29382, 0.29742, 0.30448, 0.31865, 0.37364,
2306 0.35215, 0.34629, 0.35555, 0.39286, 0.65411},
2307 {0.34875, 0.34987, 0.35346, 0.36054, 0.37472, 0.42956,
2308 0.40825, 0.40229, 0.41167, 0.44894, 0.71033},
2309 {0.40484, 0.40594, 0.40954, 0.41660, 0.43077, 0.48560,
2310 0.46433, 0.45840, 0.46772, 0.50500, 0.76632},
2311 {0.46090, 0.46201, 0.46560, 0.47267, 0.48684, 0.54167,
2312 0.52041, 0.51449, 0.52382, 0.56108, 0.82227},
2313 {0.51698, 0.51809, 0.52173, 0.52874, 0.54291, 0.59776,
2314 0.57646, 0.57052, 0.57986, 0.61717, 0.87836},
2315 {0.57306, 0.57418, 0.57782, 0.58513, 0.59899, 0.65380,
2316 0.63255, 0.62661, 0.63594, 0.67325, 0.93460},
2317 {0.62912, 0.63024, 0.63383, 0.64103, 0.65506, 0.70988,
2318 0.68484, 0.68267, 0.69202, 0.72878, 0.99046},
2319 {0.68521, 0.68633, 0.68990, 0.69699, 0.71115, 0.76595,
2320 0.74468, 0.73872, 0.74814, 0.78538, 1.04674},
2321 {0.74127, 0.74239, 0.74605, 0.75303, 0.77022, 0.82204,
2322 0.80078, 0.79484, 0.80416, 0.84147, 1.10261},
2323 {0.79736, 0.79846, 0.80206, 0.80947, 0.82330, 0.87813,
2324 0.85688, 0.85087, 0.86023, 0.89752, 1.15874},
2325 {0.85342, 0.85454, 0.85815, 0.86519, 0.87936, 0.93417,
2326 0.91293, 0.90428, 0.91631, 0.95360, 1.20760},
2327 {0.90949, 0.91061, 0.91423, 0.92128, 0.93544, 0.99026,
2328 0.96807, 0.96305, 0.97239, 1.00967, 1.27078},
2329 {0.96556, 0.96669, 0.97111, 0.97734, 0.99151, 1.04664,
2330 1.02508, 1.01879, 1.02846, 1.06167, 1.32695},
2331 {1.02167, 1.02279, 1.02656, 1.03341, 1.04759, 1.10242,
2332 1.08115, 1.07003, 1.08453, 1.12184, 1.38304},
2333 {1.07776, 1.07883, 1.08242, 1.08950, 1.10384, 1.16422,
2334 1.13725, 1.13133, 1.14061, 1.17793, 1.43910},
2335 {1.13379, 1.13492, 1.13864, 1.14567, 1.15973, 1.21455,
2336 1.19323, 1.18734, 1.19668, 1.23401, 1.49528},
2337 {1.18988, 1.19098, 1.19457, 1.20164, 1.21582, 1.27064,
2338 1.24937, 1.24044, 1.25275, 1.29004, 1.55137},
2339 {1.24592, 1.24706, 1.25087, 1.25773, 1.27188, 1.32670,
2340 1.30544, 1.29953, 1.30883, 1.34613, 1.60743},
2341 {1.30202, 1.30313, 1.30673, 1.31381, 1.32797, 1.38278,
2342 1.36151, 1.35167, 1.36490, 1.40221, 1.66306},
2343 {1.35809, 1.35921, 1.36282, 1.36986, 1.38403, 1.43888,
2344 1.41760, 1.41174, 1.42083, 1.45830, 1.71915},
2345 {1.41419, 1.41528, 1.41890, 1.42595, 1.44011, 1.49496,
2346 1.47368, 1.46769, 1.47706, 1.51436, 1.77523},
2347 {1.47131, 1.47141, 1.47494, 1.48850, 1.49620, 1.55137,
2348 1.52977, 1.51820, 1.53315, 1.57042, 1.83158},
2349 {1.52635, 1.52750, 1.53103, 1.53814, 1.55228, 1.60736,
2350 1.58503, 1.57986, 1.58920, 1.62649, 1.88767},
2351 {1.58418, 1.58355, 1.58711, 1.59526, 1.60833, 1.66316,
2352 1.63345, 1.63261, 1.64556, 1.68204, 1.94359},
2353 {1.64027, 1.63958, 1.64489, 1.65024, 1.66443, 1.71925,
2354 1.69794, 1.69201, 1.70143, 1.73865, 1.99968},
2355 {1.69450, 1.69566, 1.69940, 1.70697, 1.71841, 1.77819,
2356 1.75396, 1.74814, 1.75743, 1.79083, 2.05427},
2357 {1.75054, 1.75221, 1.75527, 1.76306, 1.77662, 1.83428,
2358 1.81006, 1.81173, 1.81345, 1.85076, 2.10289}};
2359
2360 // Garfield simulation at UD = -2100V; vd = 1.959cm/microsec, <driftfield> = 720V/cm
2361 Float_t time2100[ktimebin][kZbin] =
2362 {{0.09160, 0.09194, 0.09294, 0.09462, 0.09701, 0.10017,
2363 0.10424, 0.10974, 0.11823, 0.13988, 0.37762},
2364 {0.06585, 0.06619, 0.06731, 0.06916, 0.07174, 0.07509,
2365 0.07933, 0.08500, 0.09370, 0.11609, 0.35565},
2366 {0.03960, 0.04001, 0.04171, 0.04430, 0.04774, 0.05182,
2367 0.05668, 0.06294, 0.07291, 0.09896, 0.34676},
2368 {0.01109, 0.01280, 0.01716, 0.02279, 0.02876, 0.03474,
2369 0.04096, 0.04908, 0.06424, 0.10612, 0.36790},
2370 {0.01114, 0.01285, 0.01719, 0.02287, 0.02863, 0.03449,
2371 0.04073, 0.04964, 0.06759, 0.11446, 0.37162},
2372 {0.03922, 0.03977, 0.04146, 0.04386, 0.04711, 0.05109,
2373 0.05605, 0.06287, 0.07575, 0.10713, 0.36298},
2374 {0.06504, 0.06538, 0.06641, 0.06818, 0.07064, 0.07426,
2375 0.07852, 0.08483, 0.09581, 0.12363, 0.37424},
2376 {0.09103, 0.09129, 0.09186, 0.09291, 0.09476, 0.00000,
2377 0.10923, 0.11578, 0.12873, 0.16005, 0.41525},
2378 {0.12723, 0.12777, 0.12988, 0.13458, 0.14579, 0.20264,
2379 0.17421, 0.17078, 0.18132, 0.21708, 0.47699},
2380 {0.17508, 0.17601, 0.17897, 0.18487, 0.19698, 0.24881,
2381 0.22737, 0.22337, 0.23348, 0.27000, 0.53032},
2382 {0.22571, 0.22663, 0.22969, 0.23570, 0.24787, 0.29826,
2383 0.27871, 0.27462, 0.28471, 0.32122, 0.58166},
2384 {0.27664, 0.27759, 0.28067, 0.28669, 0.29891, 0.34898,
2385 0.32982, 0.32570, 0.33576, 0.37229, 0.63268},
2386 {0.32766, 0.32862, 0.33170, 0.33778, 0.34988, 0.39973,
2387 0.38088, 0.37675, 0.38680, 0.42333, 0.68159},
2388 {0.37872, 0.37966, 0.38275, 0.38875, 0.40093, 0.45073,
2389 0.43192, 0.42780, 0.43786, 0.47438, 0.73480},
2390 {0.42974, 0.43070, 0.43378, 0.43982, 0.45196, 0.50177,
2391 0.48297, 0.47884, 0.48889, 0.52544, 0.78581},
2392 {0.48081, 0.48175, 0.48482, 0.49084, 0.50302, 0.55290,
2393 0.53398, 0.52988, 0.53994, 0.57647, 0.83687},
2394 {0.53645, 0.53295, 0.53586, 0.54188, 0.55408, 0.60398,
2395 0.58504, 0.58092, 0.59100, 0.62768, 0.88773},
2396 {0.58345, 0.58409, 0.58690, 0.59292, 0.60510, 0.65562,
2397 0.63609, 0.63197, 0.64203, 0.67856, 0.93907},
2398 {0.63397, 0.63490, 0.63795, 0.64403, 0.65613, 0.70612,
2399 0.68714, 0.68301, 0.69294, 0.72955, 0.99000},
2400 {0.68496, 0.68592, 0.68899, 0.69504, 0.70733, 0.75708,
2401 0.73818, 0.73405, 0.74412, 0.78064, 1.04100},
2402 {0.73600, 0.73696, 0.74003, 0.74624, 0.75828, 0.80805,
2403 0.78904, 0.78512, 0.79517, 0.83152, 1.09205},
2404 {0.78709, 0.78801, 0.79108, 0.79709, 0.80931, 0.85906,
2405 0.84027, 0.83614, 0.84621, 0.88269, 1.14058},
2406 {0.83808, 0.83905, 0.84215, 0.84816, 0.86031, 0.91011,
2407 0.89139, 0.88718, 0.89725, 0.93377, 1.19413},
2408 {0.88916, 0.89010, 0.89320, 0.89920, 0.91136, 0.96117,
2409 0.94235, 0.93822, 0.94828, 0.98480, 1.24538},
2410 {0.94036, 0.94113, 0.94422, 0.95023, 0.96241, 1.01220,
2411 0.99310, 0.98927, 0.99933, 1.03585, 1.29629},
2412 {0.99139, 0.99220, 0.99525, 1.00127, 1.01344, 1.06324,
2413 1.04451, 1.04033, 1.04836, 1.08690, 1.34727},
2414 {1.04261, 1.04325, 1.04628, 1.05232, 1.06448, 1.12090,
2415 1.09546, 1.09136, 1.10142, 1.13795, 1.39831},
2416 {1.09331, 1.09429, 1.09742, 1.10336, 1.11557, 1.16547,
2417 1.14658, 1.13642, 1.15247, 1.18898, 1.44936},
2418 {1.14436, 1.14539, 1.14847, 1.15443, 1.16662, 1.21794,
2419 1.19763, 1.19329, 1.20349, 1.23956, 1.50043},
2420 {1.19533, 1.19651, 1.19943, 1.20548, 1.21666, 1.26753,
2421 1.24862, 1.24434, 1.25455, 1.29106, 1.55142},
2422 {1.24638, 1.24756, 1.25046, 1.25648, 1.26764, 1.31858,
2423 1.29967, 1.29538, 1.30499, 1.34211, 1.60250},
2424 {1.29747, 1.29847, 1.30175, 1.30753, 1.31869, 1.36969,
2425 1.35069, 1.34656, 1.35663, 1.39316, 1.64644},
2426 {1.35537, 1.34952, 1.35255, 1.35869, 1.36973, 1.41387,
2427 1.40173, 1.39761, 1.40768, 1.44396, 1.70238},
2428 {1.39956, 1.40056, 1.40380, 1.40961, 1.42178, 1.46492,
2429 1.45278, 1.45423, 1.45872, 1.49522, 1.75557},
2430 {1.45080, 1.45159, 1.45463, 1.46109, 1.47287, 1.52263,
2431 1.50382, 1.50050, 1.50977, 1.54502, 1.80670},
2432 {1.50165, 1.50264, 1.50570, 1.51214, 1.52233, 1.57370,
2433 1.55484, 1.55155, 1.56080, 1.59731, 1.85778},
2434 {1.55269, 1.55364, 1.55675, 1.56274, 1.57491, 1.62598,
2435 1.60590, 1.60259, 1.61185, 1.64836, 1.90883},
2436 {1.60368, 1.60469, 1.60779, 1.61373, 1.62596, 1.67738,
2437 1.65651, 1.65249, 1.66290, 1.69936, 1.95959}};
2438
2439 // Garfield simulation at UD = -2200V; vd = 2.134cm/microsec, <driftfield> = 753V/cm
2440 Float_t time2200[ktimebin][kZbin] =
2441 {{0.09162, 0.09194, 0.09292, 0.09460, 0.09702, 0.10014,
2442 0.10421, 0.10971, 0.11820, 0.13990, 0.37745},
2443 {0.06581, 0.06618, 0.06730, 0.06915, 0.07173, 0.07507,
2444 0.07931, 0.08497, 0.09368, 0.11609, 0.35560},
2445 {0.03947, 0.04001, 0.04167, 0.04429, 0.04772, 0.05183,
2446 0.05667, 0.06293, 0.07292, 0.09900, 0.34673},
2447 {0.01111, 0.01280, 0.01716, 0.02279, 0.02876, 0.03473,
2448 0.04091, 0.04907, 0.06426, 0.10620, 0.36766},
2449 {0.01113, 0.01285, 0.01719, 0.02276, 0.02863, 0.03452,
2450 0.04076, 0.04960, 0.06745, 0.11419, 0.37139},
2451 {0.03923, 0.03978, 0.04137, 0.04387, 0.04713, 0.05110,
2452 0.05605, 0.06284, 0.07551, 0.10677, 0.36210},
2453 {0.06505, 0.06540, 0.06644, 0.06820, 0.07069, 0.07401,
2454 0.07852, 0.08479, 0.09565, 0.12325, 0.37313},
2455 {0.09107, 0.09127, 0.09181, 0.09291, 0.09474, 0.00000,
2456 0.10883, 0.11528, 0.12789, 0.15865, 0.41313},
2457 {0.12559, 0.12622, 0.12800, 0.13206, 0.14166, 0.19331,
2458 0.16832, 0.16632, 0.17724, 0.21218, 0.47098},
2459 {0.16992, 0.17070, 0.17325, 0.17831, 0.18871, 0.23557,
2460 0.21690, 0.21451, 0.22514, 0.26082, 0.52034},
2461 {0.21640, 0.21722, 0.21987, 0.22500, 0.23540, 0.28097,
2462 0.26399, 0.26154, 0.27214, 0.30784, 0.56734},
2463 {0.26318, 0.26400, 0.26679, 0.27181, 0.28220, 0.32739,
2464 0.31090, 0.30842, 0.31902, 0.35474, 0.61415},
2465 {0.31001, 0.31085, 0.31348, 0.31866, 0.32903, 0.37412,
2466 0.35777, 0.35546, 0.36588, 0.40159, 0.66103},
2467 {0.35687, 0.35769, 0.36033, 0.36556, 0.37588, 0.42094,
2468 0.40523, 0.40214, 0.41273, 0.44841, 0.70785},
2469 {0.40372, 0.40457, 0.40723, 0.41234, 0.42273, 0.46778,
2470 0.45148, 0.44903, 0.45961, 0.49526, 0.75486},
2471 {0.45062, 0.45139, 0.45404, 0.45966, 0.46958, 0.51470,
2472 0.49833, 0.49584, 0.50644, 0.54211, 0.80160},
2473 {0.49742, 0.49825, 0.50088, 0.50605, 0.51644, 0.56148,
2474 0.54518, 0.54270, 0.55330, 0.58897, 0.84854},
2475 {0.54427, 0.54510, 0.54774, 0.55290, 0.56329, 0.60846,
2476 0.59203, 0.58955, 0.60014, 0.63578, 0.89528},
2477 {0.59119, 0.59199, 0.59471, 0.59975, 0.61014, 0.65533,
2478 0.63889, 0.63636, 0.64699, 0.68269, 0.94197},
2479 {0.63866, 0.63880, 0.64145, 0.64664, 0.65701, 0.70639,
2480 0.68574, 0.68325, 0.69385, 0.72949, 0.98900},
2481 {0.68483, 0.68566, 0.68831, 0.69347, 0.70386, 0.74890,
2482 0.73260, 0.73010, 0.74069, 0.77638, 1.03320},
2483 {0.73168, 0.73255, 0.73515, 0.74031, 0.75072, 0.79576,
2484 0.77117, 0.77501, 0.78755, 0.82318, 1.08006},
2485 {0.77854, 0.78310, 0.78200, 0.79525, 0.79756, 0.84281,
2486 0.81803, 0.82393, 0.83441, 0.87008, 1.12692},
2487 {0.82541, 0.82642, 0.82916, 0.83528, 0.84442, 0.89086,
2488 0.87315, 0.87079, 0.88125, 0.91694, 1.17648},
2489 {0.87226, 0.87308, 0.87602, 0.88086, 0.89128, 0.93772,
2490 0.92001, 0.91751, 0.92811, 0.95587, 1.22328},
2491 {0.91921, 0.91994, 0.92256, 0.92772, 0.94713, 0.98566,
2492 0.96690, 0.96436, 0.97495, 1.01064, 1.26882},
2493 {0.96790, 0.96679, 0.96941, 0.97463, 0.99399, 1.03001,
2494 1.01376, 1.01112, 1.02181, 1.05749, 1.31568},
2495 {1.01278, 1.01390, 1.01674, 1.02147, 1.03182, 1.07820,
2496 1.06056, 1.05798, 1.06867, 1.10433, 1.36390},
2497 {1.05964, 1.06076, 1.06331, 1.06833, 1.07870, 1.13297,
2498 1.10742, 1.10520, 1.11543, 1.15120, 1.41069},
2499 {1.10664, 1.10762, 1.10997, 1.11519, 1.12556, 1.17531,
2500 1.15427, 1.14620, 1.16229, 1.19805, 1.45758},
2501 {1.15352, 1.15421, 1.15683, 1.16218, 1.17242, 1.21910,
2502 1.20035, 1.19863, 1.20579, 1.24473, 1.50412},
2503 {1.20019, 1.20115, 1.20369, 1.20892, 1.21928, 1.26913,
2504 1.24721, 1.24549, 1.25605, 1.29159, 1.54920},
2505 {1.24707, 1.24846, 1.25052, 1.25602, 1.26608, 1.31558,
2506 1.29448, 1.29232, 1.30293, 1.33675, 1.59798},
2507 {1.29391, 1.29475, 1.29738, 1.30255, 1.31294, 1.36244,
2508 1.34167, 1.33918, 1.34979, 1.38229, 1.64496},
2509 {1.34078, 1.34304, 1.34424, 1.35565, 1.35980, 1.40930,
2510 1.38853, 1.38229, 1.39664, 1.42863, 1.69162},
2511 {1.38762, 1.38847, 1.39110, 1.39627, 1.40666, 1.45183,
2512 1.43539, 1.43289, 1.44348, 1.47549, 1.73876},
2513 {1.43524, 1.43533, 1.43796, 1.44310, 1.45371, 1.49305,
2514 1.48224, 1.47941, 1.49034, 1.52601, 1.78552},
2515 {1.48122, 1.48219, 1.48482, 1.48991, 1.50030, 1.53991,
2516 1.52898, 1.52653, 1.53653, 1.57282, 1.82386}};
2517
2518 if (fTimeStructInfo.fTimeStruct1) delete [] fTimeStructInfo.fTimeStruct1;
2519 fTimeStructInfo.fTimeStruct1 = new Float_t[ktimebin*kZbin];
2520
2521 if (fTimeStructInfo.fTimeStruct2) delete [] fTimeStructInfo.fTimeStruct2;
2522 fTimeStructInfo.fTimeStruct2 = new Float_t[ktimebin*kZbin];
2523
2524 for (Int_t ctrt = 0; ctrt<ktimebin; ctrt++) {
2525 for (Int_t ctrz = 0; ctrz<kZbin; ctrz++) {
2526 if ( vdrift > fVDsmp[6] ) {
2527 fTimeStructInfo.fTimeStruct1[ctrt+ctrz*ktimebin] = time2100[ctrt][ctrz];
2528 fTimeStructInfo.fTimeStruct2[ctrt+ctrz*ktimebin] = time2200[ctrt][ctrz];
2529 fTimeStructInfo.fVDlo = fVDsmp[6];
2530 fTimeStructInfo.fVDhi = fVDsmp[7];
2531 } else if ( vdrift > fVDsmp[5] ) {
2532 fTimeStructInfo.fTimeStruct1[ctrt+ctrz*ktimebin] = time2000[ctrt][ctrz];
2533 fTimeStructInfo.fTimeStruct2[ctrt+ctrz*ktimebin] = time2100[ctrt][ctrz];
2534 fTimeStructInfo.fVDlo = fVDsmp[5];
2535 fTimeStructInfo.fVDhi = fVDsmp[6];
2536 } else if ( vdrift > fVDsmp[4] ) {
2537 fTimeStructInfo.fTimeStruct1[ctrt+ctrz*ktimebin] = time1900[ctrt][ctrz];
2538 fTimeStructInfo.fTimeStruct2[ctrt+ctrz*ktimebin] = time2000[ctrt][ctrz];
2539 fTimeStructInfo.fVDlo = fVDsmp[4];
2540 fTimeStructInfo.fVDhi = fVDsmp[5];
2541 } else if ( vdrift > fVDsmp[3] ) {
2542 fTimeStructInfo.fTimeStruct1[ctrt+ctrz*ktimebin] = time1800[ctrt][ctrz];
2543 fTimeStructInfo.fTimeStruct2[ctrt+ctrz*ktimebin] = time1900[ctrt][ctrz];
2544 fTimeStructInfo.fVDlo = fVDsmp[3];
2545 fTimeStructInfo.fVDhi = fVDsmp[4];
2546 } else if ( vdrift > fVDsmp[2] ) {
2547 fTimeStructInfo.fTimeStruct1[ctrt+ctrz*ktimebin] = time1700[ctrt][ctrz];
2548 fTimeStructInfo.fTimeStruct2[ctrt+ctrz*ktimebin] = time1800[ctrt][ctrz];
2549 fTimeStructInfo.fVDlo = fVDsmp[2];
2550 fTimeStructInfo.fVDhi = fVDsmp[3];
2551 } else if ( vdrift > fVDsmp[1] ) {
2552 fTimeStructInfo.fTimeStruct1[ctrt+ctrz*ktimebin] = time1600[ctrt][ctrz];
2553 fTimeStructInfo.fTimeStruct2[ctrt+ctrz*ktimebin] = time1700[ctrt][ctrz];
2554 fTimeStructInfo.fVDlo = fVDsmp[1];
2555 fTimeStructInfo.fVDhi = fVDsmp[2];
2556 } else if ( vdrift > (fVDsmp[0] - 1.e-5) ) {
2557 fTimeStructInfo.fTimeStruct1[ctrt+ctrz*ktimebin] = time1500[ctrt][ctrz];
2558 fTimeStructInfo.fTimeStruct2[ctrt+ctrz*ktimebin] = time1600[ctrt][ctrz];
2559 fTimeStructInfo.fVDlo = fVDsmp[0];
2560 fTimeStructInfo.fVDhi = fVDsmp[1];
2561 }
2562 }
2563 }
2564}
2565
2566//_____________________________________________________________________________
2567void AliTRDdigitizer::RecalcDiffusion(Float_t vdrift)
2568{
2569 if (vdrift == fDiffusionInfo.fLastVdrift)
2570 return;
2571
2572 if (!fPar) {
2573 fPar = new AliTRDparameter("TRDparameter","Standard TRD parameter");
2574 if (fDebug > 0) {
2575 printf("<AliTRDdigitizer::RecalcDiffusion> ");
2576 printf("Create the default parameter object\n");
2577 }
2578 }
2579
2580 AliTRDSimParam* simParam = AliTRDSimParam::Instance();
2581 if (!simParam)
2582 {
2583 printf("<AliTRDdigitizer::RecalcDiffusion> ");
2584 printf("Could not get simulation params\n");
2585 return;
2586 }
2587
2588 AliTRDCommonParam* commonParam = AliTRDCommonParam::Instance();
2589 if (!commonParam)
2590 {
2591 printf("<AliTRDdigitizer::RecalcDiffusion> ");
2592 printf("Could not get common params\n");
2593 return;
2594 }
2595
2596 AliTRDcalibDB* calibration = AliTRDcalibDB::Instance();
2597 if (!calibration)
2598 {
2599 printf("<AliTRDdigitizer::RecalcDiffusion> ");
2600 printf("Could not get calibration object\n");
2601 return;
2602 }
2603
2604 Float_t field = commonParam->GetField();
2605 fDiffusionInfo.fLastVdrift = vdrift;
2606
2607 //DiffusionL
2608 {
2609 const Int_t kNb = 5;
2610 Float_t p0[kNb] = { 0.007440, 0.007493, 0.007513, 0.007672, 0.007831 };
2611 Float_t p1[kNb] = { 0.019252, 0.018912, 0.018636, 0.018012, 0.017343 };
2612 Float_t p2[kNb] = { -0.005042, -0.004926, -0.004867, -0.004650, -0.004424 };
2613 Float_t p3[kNb] = { 0.000195, 0.000189, 0.000195, 0.000182, 0.000169 };
2614
2615 Int_t ib = ((Int_t) (10 * (field - 0.15)));
2616 ib = TMath::Max( 0,ib);
2617 ib = TMath::Min(kNb,ib);
2618
2619 fDiffusionInfo.fDiffusionL = p0[ib]
2620 + p1[ib] * vdrift
2621 + p2[ib] * vdrift*vdrift
2622 + p3[ib] * vdrift*vdrift*vdrift;
2623 }
2624
2625 //DiffusionT
2626 {
2627 const Int_t kNb = 5;
2628 Float_t p0[kNb] = { 0.009550, 0.009599, 0.009674, 0.009757, 0.009850 };
2629 Float_t p1[kNb] = { 0.006667, 0.006539, 0.006359, 0.006153, 0.005925 };
2630 Float_t p2[kNb] = { -0.000853, -0.000798, -0.000721, -0.000635, -0.000541 };
2631 Float_t p3[kNb] = { 0.000131, 0.000122, 0.000111, 0.000098, 0.000085 };
2632
2633 Int_t ib = ((Int_t) (10 * (field - 0.15)));
2634 ib = TMath::Max( 0,ib);
2635 ib = TMath::Min(kNb,ib);
2636
2637 fDiffusionInfo.fDiffusionT = p0[ib]
2638 + p1[ib] * vdrift
2639 + p2[ib] * vdrift*vdrift
2640 + p3[ib] * vdrift*vdrift*vdrift;
2641 }
2642
2643 //OmegaTau
2644 fDiffusionInfo.fOmegaTau = calibration->GetOmegaTau(vdrift);
2645
2646 //Lorentzfactor
2647 {
2648 if (commonParam->ExBOn()) {
2649 fDiffusionInfo.fLorentzFactor = 1.0 / (1.0 + fDiffusionInfo.fOmegaTau*fDiffusionInfo.fOmegaTau);
2650 }
2651 else {
2652 fDiffusionInfo.fLorentzFactor = 1.0;
2653 }
2654 }
2655}
2656
2657//_____________________________________________________________________________
2658Float_t AliTRDdigitizer::GetDiffusionL(Float_t vdrift)
2659{
2660 //
2661 // Returns the longitudinal diffusion coefficient for a given drift
2662 // velocity <vd> and a B-field <b> for Xe/CO2 (15%).
2663 // The values are according to a GARFIELD simulation.
2664 //
2665
2666 RecalcDiffusion(vdrift);
2667 return fDiffusionInfo.fDiffusionL;
2668}
2669
2670//_____________________________________________________________________________
2671Float_t AliTRDdigitizer::GetDiffusionT(Float_t vdrift)
2672{
2673 //
2674 // Returns the transverse diffusion coefficient for a given drift
2675 // velocity <vd> and a B-field <b> for Xe/CO2 (15%).
2676 // The values are according to a GARFIELD simulation.
2677 //
2678
2679 RecalcDiffusion(vdrift);
2680 return fDiffusionInfo.fDiffusionT;
2681}
2682
2683//_____________________________________________________________________________
2684Int_t AliTRDdigitizer::Diffusion(Float_t vdrift, Double_t driftlength, Double_t *xyz)
2685{
2686 //
2687 // Applies the diffusion smearing to the position of a single electron
2688 //
2689
2690 RecalcDiffusion(vdrift);
2691
2692 Float_t driftSqrt = TMath::Sqrt(driftlength);
2693 Float_t sigmaT = driftSqrt * fDiffusionInfo.fDiffusionT;
2694 Float_t sigmaL = driftSqrt * fDiffusionInfo.fDiffusionL;
2695 xyz[0] = gRandom->Gaus(xyz[0], sigmaL * GetLorentzFactor(vdrift));
2696 xyz[1] = gRandom->Gaus(xyz[1], sigmaT * GetLorentzFactor(vdrift));
2697 xyz[2] = gRandom->Gaus(xyz[2], sigmaT);
2698
2699 return 1;
2700}
2701
2702//_____________________________________________________________________________
2703Float_t AliTRDdigitizer::GetLorentzFactor(Float_t vd)
2704{
2705 RecalcDiffusion(vd);
2706 return fDiffusionInfo.fLorentzFactor;
2707}
2708
2709//_____________________________________________________________________________
2710Int_t AliTRDdigitizer::ExB(Float_t vdrift, Double_t driftlength, Double_t *xyz)
2711{
2712 //
2713 // Applies E x B effects to the position of a single electron
2714 //
2715
2716 RecalcDiffusion(vdrift);
2717
2718 xyz[0] = xyz[0];
2719 xyz[1] = xyz[1] + fDiffusionInfo.fOmegaTau * driftlength;
2720 xyz[2] = xyz[2];
2721
2722 return 1;
2723}