Adding two missing getters
[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>
3becff3c 55#include <TGeoManager.h>
793ff80c 56
57#include "AliRun.h"
88cb7938 58#include "AliRunLoader.h"
59#include "AliLoader.h"
60#include "AliConfig.h"
db30bf0f 61#include "AliMagF.h"
85cbec76 62#include "AliRunDigitizer.h"
88cb7938 63#include "AliRunLoader.h"
64#include "AliLoader.h"
f7336fa3 65
66#include "AliTRD.h"
793ff80c 67#include "AliTRDhit.h"
f7336fa3 68#include "AliTRDdigitizer.h"
da581aea 69#include "AliTRDdataArrayI.h"
70#include "AliTRDdataArrayF.h"
793ff80c 71#include "AliTRDsegmentArray.h"
da581aea 72#include "AliTRDdigitsManager.h"
793ff80c 73#include "AliTRDgeometry.h"
4487dad0 74#include "AliTRDparameter.h"
a5cadd36 75#include "AliTRDpadPlane.h"
3551db50 76#include "AliTRDcalibDB.h"
77#include "AliTRDSimParam.h"
78#include "AliTRDCommonParam.h"
f7336fa3 79
80ClassImp(AliTRDdigitizer)
81
82//_____________________________________________________________________________
85cbec76 83AliTRDdigitizer::AliTRDdigitizer()
f7336fa3 84{
85 //
86 // AliTRDdigitizer default constructor
87 //
88
85a5290f 89 fRunLoader = 0;
4487dad0 90 fDigitsManager = 0;
4487dad0 91 fSDigitsManager = 0;
85a5290f 92 fSDigitsManagerList = 0;
4487dad0 93 fTRD = 0;
94 fGeo = 0;
3becff3c 95 fPar = 0;
abaf1f1d 96 fEvent = 0;
85a5290f 97 fMasks = 0;
abaf1f1d 98 fCompress = kTRUE;
e23fbb27 99 fDebug = 0;
abaf1f1d 100 fSDigits = kFALSE;
101 fSDigitsScale = 0.0;
4487dad0 102 fMergeSignalOnly = kFALSE;
3becff3c 103 fFixedGeometry = kFALSE;
0c24ba98 104
3becff3c 105 fTimeStructInfo.fLastVdrift = 0;
106 fTimeStructInfo.fTimeStruct1 = 0;
107 fTimeStructInfo.fTimeStruct2 = 0;
108 fTimeStructInfo.fVDlo = 0;
109 fTimeStructInfo.fVDhi = 0;
3551db50 110
3becff3c 111 fDiffusionInfo.fLastVdrift = 0;
112 fDiffusionInfo.fDiffusionT = 0.0;
113 fDiffusionInfo.fDiffusionL = 0.0;
3551db50 114 fDiffusionInfo.fLorentzFactor = 0.0;
115
116 Init();
3becff3c 117
f7336fa3 118}
119
120//_____________________________________________________________________________
121AliTRDdigitizer::AliTRDdigitizer(const Text_t *name, const Text_t *title)
85cbec76 122 :AliDigitizer(name,title)
f7336fa3 123{
124 //
85cbec76 125 // AliTRDdigitizer constructor
126 //
127
3551db50 128 Init();
3becff3c 129
85cbec76 130}
131
132//_____________________________________________________________________________
133AliTRDdigitizer::AliTRDdigitizer(AliRunDigitizer *manager
134 , const Text_t *name, const Text_t *title)
135 :AliDigitizer(manager,name,title)
136{
137 //
138 // AliTRDdigitizer constructor
f7336fa3 139 //
140
3551db50 141 Init();
3becff3c 142
bfc40adc 143}
144
145//_____________________________________________________________________________
146AliTRDdigitizer::AliTRDdigitizer(AliRunDigitizer *manager)
147 :AliDigitizer(manager,"AliTRDdigitizer","TRD digitizer")
148{
149 //
150 // AliTRDdigitizer constructor
151 //
152
3551db50 153 Init();
3becff3c 154
3551db50 155}
88cb7938 156
3551db50 157//_____________________________________________________________________________
158Bool_t AliTRDdigitizer::Init()
159{
3becff3c 160 //
161 // Initialize the digitizer with default values
162 //
163
85a5290f 164 fRunLoader = 0;
3551db50 165
166 //NewIO: These data members probably are not needed anymore
4487dad0 167 fDigitsManager = 0;
4487dad0 168 fSDigitsManager = 0;
85a5290f 169 fSDigitsManagerList = 0;
4487dad0 170 fTRD = 0;
171 fGeo = 0;
3becff3c 172 fPar = 0;
3551db50 173 //End NewIO comment
3becff3c 174
abaf1f1d 175 fEvent = 0;
85a5290f 176 fMasks = 0;
abaf1f1d 177 fCompress = kTRUE;
e23fbb27 178 fDebug = 0;
abaf1f1d 179 fSDigits = kFALSE;
3551db50 180 fSDigitsScale = 100.; // For the summable digits
4487dad0 181 fMergeSignalOnly = kFALSE;
3becff3c 182 fFixedGeometry = kFALSE;
3551db50 183
3becff3c 184 fTimeStructInfo.fLastVdrift = -1;
185 fTimeStructInfo.fTimeStruct1 = 0;
186 fTimeStructInfo.fTimeStruct2 = 0;
187 fTimeStructInfo.fVDlo = 0;
188 fTimeStructInfo.fVDhi = 0;
3551db50 189
3becff3c 190 fDiffusionInfo.fLastVdrift = -1;
191 fDiffusionInfo.fDiffusionT = 0.0;
192 fDiffusionInfo.fDiffusionL = 0.0;
3551db50 193 fDiffusionInfo.fLorentzFactor = 0.0;
793ff80c 194
3551db50 195 return AliDigitizer::Init();
3becff3c 196
f7336fa3 197}
198
199//_____________________________________________________________________________
73ae7b59 200AliTRDdigitizer::AliTRDdigitizer(const AliTRDdigitizer &d):AliDigitizer(d)
8230f242 201{
202 //
203 // AliTRDdigitizer copy constructor
204 //
205
dd9a6ee3 206 ((AliTRDdigitizer &) d).Copy(*this);
8230f242 207
208}
209
210//_____________________________________________________________________________
f7336fa3 211AliTRDdigitizer::~AliTRDdigitizer()
212{
8230f242 213 //
214 // AliTRDdigitizer destructor
215 //
f7336fa3 216
abaf1f1d 217 if (fDigitsManager) {
218 delete fDigitsManager;
4487dad0 219 fDigitsManager = 0;
f7336fa3 220 }
221
47b5729a 222 fSDigitsManager = 0;
f7336fa3 223
abaf1f1d 224 if (fSDigitsManagerList) {
47b5729a 225 fSDigitsManagerList->Delete();
abaf1f1d 226 delete fSDigitsManagerList;
4487dad0 227 fSDigitsManagerList = 0;
e23fbb27 228 }
229
230 if (fMasks) {
231 delete [] fMasks;
232 fMasks = 0;
233 }
234
3551db50 235 if (fTimeStructInfo.fTimeStruct1)
236 {
237 delete [] fTimeStructInfo.fTimeStruct1;
238 fTimeStructInfo.fTimeStruct1 = 0;
239 }
240
241 if (fTimeStructInfo.fTimeStruct2)
242 {
243 delete [] fTimeStructInfo.fTimeStruct2;
244 fTimeStructInfo.fTimeStruct2 = 0;
245 }
3becff3c 246
f7336fa3 247}
248
249//_____________________________________________________________________________
dd9a6ee3 250AliTRDdigitizer &AliTRDdigitizer::operator=(const AliTRDdigitizer &d)
251{
252 //
253 // Assignment operator
254 //
255
256 if (this != &d) ((AliTRDdigitizer &) d).Copy(*this);
257 return *this;
258
259}
260
261//_____________________________________________________________________________
e0d47c25 262void AliTRDdigitizer::Copy(TObject &d) const
8230f242 263{
264 //
265 // Copy function
266 //
267
85a5290f 268 ((AliTRDdigitizer &) d).fRunLoader = 0;
4487dad0 269 ((AliTRDdigitizer &) d).fDigitsManager = 0;
85a5290f 270 ((AliTRDdigitizer &) d).fSDigitsManager = 0;
271 ((AliTRDdigitizer &) d).fSDigitsManagerList = 0;
4487dad0 272 ((AliTRDdigitizer &) d).fTRD = 0;
273 ((AliTRDdigitizer &) d).fGeo = 0;
4487dad0 274 ((AliTRDdigitizer &) d).fPar = 0;
85a5290f 275 ((AliTRDdigitizer &) d).fEvent = 0;
276 ((AliTRDdigitizer &) d).fMasks = 0;
abaf1f1d 277 ((AliTRDdigitizer &) d).fCompress = fCompress;
e23fbb27 278 ((AliTRDdigitizer &) d).fDebug = fDebug ;
abaf1f1d 279 ((AliTRDdigitizer &) d).fSDigits = fSDigits;
280 ((AliTRDdigitizer &) d).fSDigitsScale = fSDigitsScale;
4487dad0 281 ((AliTRDdigitizer &) d).fMergeSignalOnly = fMergeSignalOnly;
3becff3c 282 ((AliTRDdigitizer &) d).fFixedGeometry = fFixedGeometry;
0c24ba98 283
3551db50 284 AliTRDdigitizer& target = (AliTRDdigitizer &) d;
285
286 target.fDiffusionInfo = fDiffusionInfo;
287
3becff3c 288 // Do not copy timestructs, just invalidate lastvdrift.
289 // Next time they are requested, they get recalculated
3551db50 290 if (target.fTimeStructInfo.fTimeStruct1)
291 {
292 delete[] target.fTimeStructInfo.fTimeStruct1;
293 target.fTimeStructInfo.fTimeStruct1 = 0;
294 }
295 if (target.fTimeStructInfo.fTimeStruct2)
296 {
297 delete[] target.fTimeStructInfo.fTimeStruct2;
298 target.fTimeStructInfo.fTimeStruct2 = 0;
3becff3c 299 }
3551db50 300 target.fTimeStructInfo.fLastVdrift = -1;
3becff3c 301
e23fbb27 302}
303
304//_____________________________________________________________________________
e23fbb27 305void AliTRDdigitizer::Exec(Option_t* option)
306{
307 //
308 // Executes the merging
309 //
310
311 Int_t iInput;
312
313 AliTRDdigitsManager *sdigitsManager;
314
315 TString optionString = option;
316 if (optionString.Contains("deb")) {
317 fDebug = 1;
318 if (optionString.Contains("2")) {
319 fDebug = 2;
320 }
321 printf("<AliTRDdigitizer::Exec> ");
322 printf("Called with debug option %d\n",fDebug);
323 }
324
cec4059b 325 // The AliRoot file is already connected by the manager
88cb7938 326 AliRunLoader* inrl;
327
328 if (gAlice)
329 {
4487dad0 330 if (fDebug > 0) {
331 printf("<AliTRDdigitizer::Exec> ");
332 printf("AliRun object found on file.\n");
333 }
88cb7938 334 }
4487dad0 335 else {
88cb7938 336 inrl = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(0));
337 inrl->LoadgAlice();
338 gAlice = inrl->GetAliRun();
339 if (!gAlice)
340 {
341 printf("<AliTRDdigitizer::Exec> ");
342 printf("Could not find AliRun object.\n");
343 return;
344 }
4487dad0 345 }
cec4059b 346
e23fbb27 347 Int_t nInput = fManager->GetNinputs();
348 fMasks = new Int_t[nInput];
349 for (iInput = 0; iInput < nInput; iInput++) {
350 fMasks[iInput] = fManager->GetMask(iInput);
351 }
e23fbb27 352
353 // Initialization
e23fbb27 354
67c67368 355 AliRunLoader* orl = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName());
356 if (InitDetector()) {
357 AliLoader* ogime = orl->GetLoader("TRDLoader");
358
359 TTree* tree = 0;
360 if (fSDigits)
361 {
362 //if we produce SDigits
363 tree = ogime->TreeS();
364 if (!tree)
365 {
366 ogime->MakeTree("S");
367 tree = ogime->TreeS();
368 }
369 }
370 else
371 {//if we produce Digits
372 tree = ogime->TreeD();
373 if (!tree)
374 {
375 ogime->MakeTree("D");
376 tree = ogime->TreeD();
377 }
378 }
379 MakeBranch(tree);
380 }
381
e23fbb27 382 for (iInput = 0; iInput < nInput; iInput++) {
383
384 if (fDebug > 0) {
385 printf("<AliTRDdigitizer::Exec> ");
386 printf("Add input stream %d\n",iInput);
387 }
388
c57e2264 389 // check if the input tree exists
88cb7938 390 inrl = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(iInput));
391 AliLoader* gime = inrl->GetLoader("TRDLoader");
392
393 TTree * treees = gime->TreeS();
394 if (treees == 0x0)
395 {
396 if (gime->LoadSDigits())
397 {
398 Error("Exec","Error Occured while loading S. Digits for input %d.",iInput);
399 return;
400 }
401 treees = gime->TreeS();
402 }
403
404 if (treees == 0x0) {
c57e2264 405 printf("<AliTRDdigitizer::Exec> ");
406 printf("Input stream %d does not exist\n",iInput);
407 return;
408 }
409
e23fbb27 410 // Read the s-digits via digits manager
411 sdigitsManager = new AliTRDdigitsManager();
412 sdigitsManager->SetDebug(fDebug);
413 sdigitsManager->SetSDigits(kTRUE);
88cb7938 414
415 AliRunLoader* rl = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(iInput));
416 AliLoader* gimme = rl->GetLoader("TRDLoader");
417 if (!gimme->TreeS()) gimme->LoadSDigits();
418 sdigitsManager->ReadDigits(gimme->TreeS());
e23fbb27 419
420 // Add the s-digits to the input list
421 AddSDigitsManager(sdigitsManager);
422
423 }
424
425 // Convert the s-digits to normal digits
426 if (fDebug > 0) {
427 printf("<AliTRDdigitizer::Exec> ");
428 printf("Do the conversion\n");
429 }
430 SDigits2Digits();
431
432 // Store the digits
433 if (fDebug > 0) {
434 printf("<AliTRDdigitizer::Exec> ");
435 printf("Write the digits\n");
436 }
88cb7938 437
e23fbb27 438 fDigitsManager->WriteDigits();
88cb7938 439
67c67368 440 //Write parameters
441 orl->CdGAFile();
bdbb05bb 442 if (!gFile->Get("TRDparameter")) GetParameter()->Write();
67c67368 443
e23fbb27 444 if (fDebug > 0) {
445 printf("<AliTRDdigitizer::Exec> ");
446 printf("Done\n");
447 }
448
b1113c6b 449 DeleteSDigitsManager();
450
e23fbb27 451}
452
453//_____________________________________________________________________________
e23fbb27 454Bool_t AliTRDdigitizer::Open(const Char_t *file, Int_t nEvent)
f7336fa3 455{
456 //
457 // Opens a ROOT-file with TRD-hits and reads in the hit-tree
458 //
f7336fa3 459 // Connect the AliRoot file containing Geometry, Kine, and Hits
3becff3c 460 //
f540341d 461
e191bb57 462 TString evfoldname = AliConfig::GetDefaultEventFolderName();
f540341d 463 fRunLoader = AliRunLoader::GetRunLoader(evfoldname);
464 if (!fRunLoader)
e191bb57 465 fRunLoader = AliRunLoader::Open(file,AliConfig::GetDefaultEventFolderName(),
f540341d 466 "UPDATE");
88cb7938 467
468 if (!fRunLoader)
469 {
470 Error("Open","Can not open session for file %s.",file);
471 return kFALSE;
472 }
473
f540341d 474 if (!fRunLoader->GetAliRun()) fRunLoader->LoadgAlice();
88cb7938 475 gAlice = fRunLoader->GetAliRun();
476
da581aea 477 if (gAlice) {
e23fbb27 478 if (fDebug > 0) {
479 printf("<AliTRDdigitizer::Open> ");
abaf1f1d 480 printf("AliRun object found on file.\n");
481 }
da581aea 482 }
483 else {
e23fbb27 484 printf("<AliTRDdigitizer::Open> ");
da581aea 485 printf("Could not find AliRun object.\n");
486 return kFALSE;
487 }
f7336fa3 488
489 fEvent = nEvent;
490
491 // Import the Trees for the event nEvent in the file
88cb7938 492 fRunLoader->GetEvent(fEvent);
493
494 AliLoader* loader = fRunLoader->GetLoader("TRDLoader");
495 if (!loader)
496 {
497 Error("Open","Can not get TRD loader from Run Loader");
498 return kFALSE;
499 }
500
abaf1f1d 501 if (InitDetector()) {
88cb7938 502 TTree* tree = 0;
503 if (fSDigits)
504 {
505 //if we produce SDigits
506 tree = loader->TreeS();
507 if (!tree)
508 {
509 loader->MakeTree("S");
510 tree = loader->TreeS();
511 }
512 }
513 else
514 {//if we produce Digits
88cb7938 515 if (!tree)
516 {
517 loader->MakeTree("D");
518 tree = loader->TreeD();
519 }
520 }
521 return MakeBranch(tree);
abaf1f1d 522 }
523 else {
524 return kFALSE;
525 }
793ff80c 526
527}
528
529//_____________________________________________________________________________
530Bool_t AliTRDdigitizer::InitDetector()
531{
532 //
533 // Sets the pointer to the TRD detector and the geometry
534 //
535
dd9a6ee3 536 // Get the pointer to the detector class and check for version 1
4487dad0 537 fTRD = (AliTRD *) gAlice->GetDetector("TRD");
cec4059b 538 if (!fTRD) {
539 printf("<AliTRDdigitizer::InitDetector> ");
540 printf("No TRD module found\n");
541 exit(1);
542 }
dd9a6ee3 543 if (fTRD->IsVersion() != 1) {
e23fbb27 544 printf("<AliTRDdigitizer::InitDetector> ");
dd9a6ee3 545 printf("TRD must be version 1 (slow simulator).\n");
546 exit(1);
547 }
548
549 // Get the geometry
550 fGeo = fTRD->GetGeometry();
e23fbb27 551 if (fDebug > 0) {
552 printf("<AliTRDdigitizer::InitDetector> ");
abaf1f1d 553 printf("Geometry version %d\n",fGeo->IsVersion());
554 }
dd9a6ee3 555
abaf1f1d 556 // Create a digits manager
47b5729a 557 delete fDigitsManager;
abaf1f1d 558 fDigitsManager = new AliTRDdigitsManager();
559 fDigitsManager->SetSDigits(fSDigits);
560 fDigitsManager->CreateArrays();
561 fDigitsManager->SetEvent(fEvent);
e23fbb27 562 fDigitsManager->SetDebug(fDebug);
abaf1f1d 563
564 // The list for the input s-digits manager to be merged
47b5729a 565 if (fSDigitsManagerList) {
566 fSDigitsManagerList->Delete();
3becff3c 567 }
568 else {
47b5729a 569 fSDigitsManagerList = new TList();
570 }
abaf1f1d 571
4487dad0 572 return kTRUE;
f7336fa3 573
574}
575
576//_____________________________________________________________________________
88cb7938 577Bool_t AliTRDdigitizer::MakeBranch(TTree* tree) const
6244debe 578{
abaf1f1d 579 //
580 // Create the branches for the digits array
6244debe 581 //
582
88cb7938 583 return fDigitsManager->MakeBranch(tree);
6244debe 584
585}
586
587//_____________________________________________________________________________
f7336fa3 588Bool_t AliTRDdigitizer::MakeDigits()
589{
590 //
872a7aba 591 // Creates digits.
f7336fa3 592 //
593
f7336fa3 594 ///////////////////////////////////////////////////////////////
595 // Parameter
596 ///////////////////////////////////////////////////////////////
597
598 // Converts number of electrons to fC
872a7aba 599 const Double_t kEl2fC = 1.602E-19 * 1.0E15;
f7336fa3 600
601 ///////////////////////////////////////////////////////////////
602
793ff80c 603 // Number of pads included in the pad response
a5cadd36 604 const Int_t kNpad = 3;
793ff80c 605
606 // Number of track dictionary arrays
a5cadd36 607 const Int_t kNDict = AliTRDdigitsManager::kNDict;
793ff80c 608
872a7aba 609 // Half the width of the amplification region
610 const Float_t kAmWidth = AliTRDgeometry::AmThick() / 2.;
3becff3c 611 // Width of the drift region
ccb4315c 612 const Float_t kDrWidth = AliTRDgeometry::DrThick();
3551db50 613
a5cadd36 614 Int_t iRow, iCol, iTime, iPad;
615 Int_t iDict = 0;
616 Int_t nBytes = 0;
f7336fa3 617
a5cadd36 618 Int_t totalSizeDigits = 0;
619 Int_t totalSizeDict0 = 0;
620 Int_t totalSizeDict1 = 0;
621 Int_t totalSizeDict2 = 0;
f7336fa3 622
a5cadd36 623 Int_t timeBinTRFend = 1;
872a7aba 624
a5cadd36 625 Double_t pos[3];
626 Double_t rot[3];
627 Double_t xyz[3];
628 Double_t padSignal[kNpad];
629 Double_t signalOld[kNpad];
872a7aba 630
a5cadd36 631 AliTRDdataArrayF *signals = 0;
632 AliTRDdataArrayI *digits = 0;
8230f242 633 AliTRDdataArrayI *dictionary[kNDict];
da581aea 634
a5cadd36 635 AliTRDpadPlane *padPlane = 0;
636
3becff3c 637 TGeoManager::Import("geometry.root");
638
4487dad0 639 // Create a default parameter class if none is defined
640 if (!fPar) {
641 fPar = new AliTRDparameter("TRDparameter","Standard TRD parameter");
642 if (fDebug > 0) {
643 printf("<AliTRDdigitizer::MakeDigits> ");
644 printf("Create the default parameter object\n");
645 }
646 }
3551db50 647
648 AliTRDSimParam* simParam = AliTRDSimParam::Instance();
3becff3c 649 if (!simParam) {
3551db50 650 printf("<AliTRDdigitizer::MakeDigits> ");
651 printf("Could not get simulation params\n");
652 return kFALSE;
653 }
654
655 AliTRDCommonParam* commonParam = AliTRDCommonParam::Instance();
3becff3c 656 if (!commonParam) {
3551db50 657 printf("<AliTRDdigitizer::MakeDigits> ");
658 printf("Could not get common params\n");
659 return kFALSE;
660 }
661
793ff80c 662 // Create a container for the amplitudes
663 AliTRDsegmentArray *signalsArray
e23fbb27 664 = new AliTRDsegmentArray("AliTRDdataArrayF"
665 ,AliTRDgeometry::Ndet());
793ff80c 666
3551db50 667 AliTRDcalibDB* calibration = AliTRDcalibDB::Instance();
3becff3c 668 if (!calibration) {
3551db50 669 printf("<AliTRDdigitizer::MakeDigits> ");
670 printf("Could not get calibration object\n");
671 return kFALSE;
672 }
673
3becff3c 674 if (!gGeoManager) {
675 printf("<AliTRDdigitizer::MakeDigits> ");
676 printf("No TGeoManager available. Switch to fixed geometry.\n");
677 fFixedGeometry = kTRUE;
678 }
679
3551db50 680 if (simParam->TRFOn()) {
681 timeBinTRFend = ((Int_t) ( simParam->GetTRFhi() * calibration->GetSamplingFrequency())) - 1;
e23fbb27 682 if (fDebug > 0) {
683 printf("<AliTRDdigitizer::MakeDigits> ");
ccb4315c 684 printf("Sample the TRF up to bin %d\n",timeBinTRFend);
abaf1f1d 685 }
da581aea 686 }
687
3551db50 688 Float_t elAttachProp = simParam->GetElAttachProp() / 100.;
793ff80c 689
872a7aba 690 if (!fGeo) {
e23fbb27 691 printf("<AliTRDdigitizer::MakeDigits> ");
872a7aba 692 printf("No geometry defined\n");
693 return kFALSE;
694 }
695
e23fbb27 696 if (fDebug > 0) {
697 printf("<AliTRDdigitizer::MakeDigits> ");
abaf1f1d 698 printf("Start creating digits.\n");
699 }
872a7aba 700
88cb7938 701 AliLoader* gimme = fRunLoader->GetLoader("TRDLoader");
702 if (!gimme->TreeH()) gimme->LoadHits();
703 TTree* hitTree = gimme->TreeH();
3becff3c 704 if (hitTree == 0x0) {
88cb7938 705 Error("MakeDigits","Can not get TreeH");
706 return kFALSE;
3becff3c 707 }
88cb7938 708 fTRD->SetTreeAddress();
709
793ff80c 710 // Get the number of entries in the hit tree
711 // (Number of primary particles creating a hit somewhere)
3becff3c 712 Int_t nTrack = (Int_t) hitTree->GetEntries();
713 if (fDebug > 0) {
714 printf("<AliTRDdigitizer::MakeDigits> ");
715 printf("Found %d primary particles\n",nTrack);
0c24ba98 716 }
793ff80c 717
718 Int_t detectorOld = -1;
719 Int_t countHits = 0;
720
a328fff9 721 if (fDebug > 0) {
3551db50 722 printf("<AliTRDdigitizer::MakeDigits> Sampling = %.0fMHz\n", calibration->GetSamplingFrequency());
723 printf("<AliTRDdigitizer::MakeDigits> Gain = %d\n",(Int_t)simParam->GetGasGain());
724 printf("<AliTRDdigitizer::MakeDigits> Noise = %d\n",(Int_t)simParam->GetNoise());
725 if (simParam->TimeStructOn()) {
a328fff9 726 printf("<AliTRDdigitizer::MakeDigits> ");
727 printf("Time Structure of drift cells implemented.\n");
a328fff9 728 } else {
729 printf("<AliTRDdigitizer::MakeDigits> ");
730 printf("Constant drift velocity in drift cells.\n");
731 }
732 }
3551db50 733
3becff3c 734 Int_t nTimeTotal = calibration->GetNumberOfTimeBins();
735 Float_t samplingRate = calibration->GetSamplingFrequency();
a328fff9 736
793ff80c 737 // Loop through all entries in the tree
738 for (Int_t iTrack = 0; iTrack < nTrack; iTrack++) {
739
3becff3c 740 gAlice->ResetHits();
741 nBytes += hitTree->GetEvent(iTrack);
793ff80c 742
e23fbb27 743 // Loop through the TRD hits
744 Int_t iHit = 0;
745 AliTRDhit *hit = (AliTRDhit *) fTRD->FirstHit(-1);
746 while (hit) {
747
793ff80c 748 countHits++;
e23fbb27 749 iHit++;
750
ccb4315c 751 pos[0] = hit->X();
752 pos[1] = hit->Y();
753 pos[2] = hit->Z();
754 Float_t q = hit->GetCharge();
755 Int_t track = hit->Track();
756 Int_t detector = hit->GetDetector();
757 Int_t plane = fGeo->GetPlane(detector);
758 Int_t sector = fGeo->GetSector(detector);
759 Int_t chamber = fGeo->GetChamber(detector);
3551db50 760 Float_t time0 = AliTRDgeometry::GetTime0(plane);
761
762 padPlane = commonParam->GetPadPlane(plane,chamber);
a5cadd36 763 Float_t row0 = padPlane->GetRow0();
764 Float_t col0 = padPlane->GetCol0();
765 Int_t nRowMax = padPlane->GetNrows();
766 Int_t nColMax = padPlane->GetNcols();
793ff80c 767
3becff3c 768 Int_t inDrift = 1;
769 if (!fFixedGeometry) {
770 gGeoManager->SetCurrentPoint(pos);
771 gGeoManager->FindNode();
772 if (strstr(gGeoManager->GetPath(),"/UK")) {
773 inDrift = 0;
774 }
775 }
776
e23fbb27 777 if (fDebug > 1) {
793ff80c 778 printf("Analyze hit no. %d ",iHit);
779 printf("-----------------------------------------------------------\n");
780 hit->Dump();
781 printf("plane = %d, sector = %d, chamber = %d\n"
782 ,plane,sector,chamber);
dde59437 783 printf("nRowMax = %d, nColMax = %d\n"
784 ,nRowMax,nColMax);
785 printf("nTimeTotal = %d\n"
786 ,nTimeTotal);
793ff80c 787 printf("row0 = %f, col0 = %f, time0 = %f\n"
788 ,row0,col0,time0);
a5cadd36 789 printf("samplingRate = %f\n"
790 ,samplingRate);
793ff80c 791 }
792
e23fbb27 793 // Don't analyze test hits and switched off detectors
794 if ((CheckDetector(plane,chamber,sector)) &&
795 (((Int_t) q) != 0)) {
dd56b762 796
e23fbb27 797 if (detector != detectorOld) {
e153aaf6 798
e23fbb27 799 if (fDebug > 1) {
800 printf("<AliTRDdigitizer::MakeDigits> ");
801 printf("Get new container. New det = %d, Old det = %d\n"
802 ,detector,detectorOld);
dd9a6ee3 803 }
e23fbb27 804 // Compress the old one if enabled
805 if ((fCompress) && (detectorOld > -1)) {
806 if (fDebug > 1) {
807 printf("<AliTRDdigitizer::MakeDigits> ");
808 printf("Compress the old container ...");
809 }
810 signals->Compress(1,0);
811 for (iDict = 0; iDict < kNDict; iDict++) {
812 dictionary[iDict]->Compress(1,0);
c1e4b257 813 }
e23fbb27 814 if (fDebug > 1) printf("done\n");
793ff80c 815 }
e23fbb27 816 // Get the new container
817 signals = (AliTRDdataArrayF *) signalsArray->At(detector);
818 if (signals->GetNtime() == 0) {
819 // Allocate a new one if not yet existing
820 if (fDebug > 1) {
821 printf("<AliTRDdigitizer::MakeDigits> ");
822 printf("Allocate a new container ... ");
823 }
824 signals->Allocate(nRowMax,nColMax,nTimeTotal);
793ff80c 825 }
826 else {
e23fbb27 827 // Expand an existing one
828 if (fCompress) {
829 if (fDebug > 1) {
830 printf("<AliTRDdigitizer::MakeDigits> ");
831 printf("Expand an existing container ... ");
832 }
833 signals->Expand();
834 }
793ff80c 835 }
e23fbb27 836 // The same for the dictionary
3becff3c 837 for (iDict = 0; iDict < kNDict; iDict++) {
838 dictionary[iDict] = fDigitsManager->GetDictionary(detector,iDict);
839 if (dictionary[iDict]->GetNtime() == 0) {
840 dictionary[iDict]->Allocate(nRowMax,nColMax,nTimeTotal);
e23fbb27 841 }
3becff3c 842 else {
843 if (fCompress) dictionary[iDict]->Expand();
844 }
e23fbb27 845 }
846 if (fDebug > 1) printf("done\n");
847 detectorOld = detector;
793ff80c 848 }
849
3becff3c 850 if (fFixedGeometry) {
851 // Rotate the sectors on top of each other
0c24ba98 852 fGeo->Rotate(detector,pos,rot);
853 }
3becff3c 854 else {
855 // Use the geoManager
856 Double_t aaa[3];
857 gGeoManager->MasterToLocal(pos,aaa);
858 if (inDrift) {
859 aaa[2] = time0 - (kDrWidth / 2.0 + kAmWidth) + aaa[2];
860 }
861 else {
862 aaa[2] = time0 + aaa[2];
863 }
864 aaa[1] = row0 + padPlane->GetLengthRim() + fGeo->RpadW()
865 - 0.5 * fGeo->GetChamberLength(plane,chamber)
866 + aaa[1];
867 rot[0] = aaa[2];
868 rot[1] = aaa[0];
869 rot[2] = aaa[1];
870 }
e23fbb27 871
ccb4315c 872 // The driftlength. It is negative if the hit is between pad plane and anode wires.
a5cadd36 873 Double_t driftlength = time0 - rot[0];
e23fbb27 874
e23fbb27 875 // Loop over all electrons of this hit
876 // TR photons produce hits with negative charge
877 Int_t nEl = ((Int_t) TMath::Abs(q));
878 for (Int_t iEl = 0; iEl < nEl; iEl++) {
879
880 xyz[0] = rot[0];
881 xyz[1] = rot[1];
882 xyz[2] = rot[2];
883
a328fff9 884 // Stupid patch to take care of TR photons that are absorbed
885 // outside the chamber volume. A real fix would actually need
886 // a more clever implementation of the TR hit generation
81a6930e 887 if (q < 0.0) {
a5cadd36 888 if ((xyz[2] < padPlane->GetRowEnd()) ||
889 (xyz[2] > padPlane->GetRow0())) {
81a6930e 890 if (iEl == 0) {
891 printf("<AliTRDdigitizer::MakeDigits> ");
a5cadd36 892 printf("Hit outside of sensitive volume, row (z=%f, row0=%f, rowE=%f)\n"
893 ,xyz[2],padPlane->GetRow0(),padPlane->GetRowEnd());
81a6930e 894 }
895 continue;
a328fff9 896 }
ccb4315c 897 Float_t tt = driftlength + kAmWidth;
898 if (tt < 0.0 || tt > kDrWidth + 2.*kAmWidth) {
81a6930e 899 if (iEl == 0) {
900 printf("<AliTRDdigitizer::MakeDigits> ");
901 printf("Hit outside of sensitive volume, time (Q = %d)\n",((Int_t) q));
902 }
903 continue;
a328fff9 904 }
a328fff9 905 }
906
3551db50 907 // Get row and col of unsmeared electron to retrieve drift velocity
e23fbb27 908 // The pad row (z-direction)
a5cadd36 909 Int_t rowE = padPlane->GetPadRowNumber(xyz[2]);
910 if (rowE < 0) continue;
911 Double_t rowOffset = padPlane->GetPadRowOffset(rowE,xyz[2]);
e23fbb27 912
913 // The pad column (rphi-direction)
de4b10e5 914 Float_t offsetTilt = padPlane->GetTiltOffset(rowOffset); // MI change
915 Int_t colE = padPlane->GetPadColNumber(xyz[1]+offsetTilt,rowOffset);
916 if (colE < 0) continue;
917 Double_t colOffset = padPlane->GetPadColOffset(colE,xyz[1]+offsetTilt);
ccb4315c 918
3551db50 919 Float_t driftvelocity = calibration->GetVdrift(detector, colE, rowE);
920
921 // Normalised drift length
922 Double_t absdriftlength = TMath::Abs(driftlength);
923 if (commonParam->ExBOn())
924 absdriftlength /= TMath::Sqrt(GetLorentzFactor(driftvelocity));
925
926 // Electron attachment
927 if (simParam->ElAttachOn()) {
928 if (gRandom->Rndm() < (absdriftlength * elAttachProp)) continue;
929 }
930
931 // Apply the diffusion smearing
932 if (simParam->DiffusionOn()) {
933 if (!(Diffusion(driftvelocity, absdriftlength,xyz))) continue;
934 }
935
936 // Apply E x B effects (depends on drift direction)
937 if (commonParam->ExBOn()) {
938 if (!(ExB(driftvelocity, driftlength,xyz))) continue;
939 }
940
941 // The electron position after diffusion and ExB in pad coordinates.
942 // The pad row (z-direction)
e02e7d86 943 rowE = padPlane->GetPadRowNumber(xyz[2]);
3551db50 944 if (rowE < 0) continue;
e02e7d86 945 rowOffset = padPlane->GetPadRowOffset(rowE,xyz[2]);
3551db50 946
947 // The pad column (rphi-direction)
e02e7d86 948 offsetTilt = padPlane->GetTiltOffset(rowOffset); // MI change
949 colE = padPlane->GetPadColNumber(xyz[1]+offsetTilt,rowOffset);
3551db50 950 if (colE < 0) continue;
e02e7d86 951 colOffset = padPlane->GetPadColOffset(colE,xyz[1]+offsetTilt);
3551db50 952
e02e7d86 953 // Also re-retrieve drift velocity because col and row may have changed
3551db50 954 driftvelocity = calibration->GetVdrift(detector, colE, rowE);
955 Float_t t0 = calibration->GetT0(detector, colE, rowE);
956
957 // Convert the position to drift time, using either constant drift velocity or
ccb4315c 958 // time structure of drift cells (non-isochronity, GARFIELD calculation).
a5cadd36 959 Double_t drifttime;
3551db50 960 if (simParam->TimeStructOn()) {
ccb4315c 961 // Get z-position with respect to anode wire:
3551db50 962 //Double_t Z = xyz[2] - row0 + simParam->GetAnodeWireOffset();
963 Double_t Z = row0 - xyz[2] + simParam->GetAnodeWireOffset();
ccb4315c 964 Z -= ((Int_t)(2*Z))/2.;
965 if (Z>0.25) Z = 0.5-Z;
966 // use drift time map (GARFIELD)
3551db50 967 drifttime = TimeStruct(driftvelocity, time0 - xyz[0] + kAmWidth, Z);
a5cadd36 968 }
969 else {
ccb4315c 970 // use constant drift velocity
3551db50 971 drifttime = TMath::Abs(time0 - xyz[0]) / driftvelocity;
e23fbb27 972 }
ccb4315c 973
e23fbb27 974 // Apply the gas gain including fluctuations
a5cadd36 975 Double_t ggRndm = 0.0;
e23fbb27 976 do {
977 ggRndm = gRandom->Rndm();
978 } while (ggRndm <= 0);
3551db50 979 Int_t signal = (Int_t) (-(simParam->GetGasGain()) * TMath::Log(ggRndm));
e23fbb27 980
981 // Apply the pad response
cc7cef99 982 if (simParam->PRFOn()) {
e23fbb27 983 // The distance of the electron to the center of the pad
984 // in units of pad width
a5cadd36 985 //Double_t dist = - colOffset / padPlane->GetColSize(colE);
e02e7d86 986 Double_t dist = (colOffset - 0.5*padPlane->GetColSize(colE))
a5cadd36 987 / padPlane->GetColSize(colE);
e02e7d86 988
6a739e92 989 if (!(calibration->PadResponse(signal,dist,plane,padSignal))) continue;
793ff80c 990 }
e23fbb27 991 else {
992 padSignal[0] = 0.0;
993 padSignal[1] = signal;
994 padSignal[2] = 0.0;
995 }
996
6a739e92 997 // The time bin (always positive), with t0 correction
998 Double_t timeBinIdeal = drifttime * samplingRate + t0;
a305677e 999 // Protection according to MI
1000 if (TMath::Abs(timeBinIdeal) > 2*nTimeTotal) {
1001 timeBinIdeal = 2 * nTimeTotal;
1002 }
6a739e92 1003 Int_t timeBinTruncated = (Int_t) timeBinIdeal;
3551db50 1004 // The distance of the position to the middle of the timebin
6a739e92 1005 Double_t timeOffset = ((Float_t) timeBinTruncated + 0.5 - timeBinIdeal) / samplingRate;
1006
e23fbb27 1007 // Sample the time response inside the drift region
1008 // + additional time bins before and after.
1009 // The sampling is done always in the middle of the time bin
6a739e92 1010 for (Int_t iTimeBin = TMath::Max(timeBinTruncated, 0);
1011 iTimeBin < TMath::Min(timeBinTruncated+timeBinTRFend,nTimeTotal);
1012 iTimeBin++) {
e23fbb27 1013
1014 // Apply the time response
a5cadd36 1015 Double_t timeResponse = 1.0;
1016 Double_t crossTalk = 0.0;
6a739e92 1017 Double_t time = (iTimeBin - timeBinTruncated) / samplingRate + timeOffset;
3551db50 1018 if (simParam->TRFOn()) {
1019 timeResponse = simParam->TimeResponse(time);
1020 }
1021
1022 if (simParam->CTOn()) {
1023 crossTalk = simParam->CrossTalk(time);
e23fbb27 1024 }
1025
1026 signalOld[0] = 0.0;
1027 signalOld[1] = 0.0;
1028 signalOld[2] = 0.0;
f7336fa3 1029
e23fbb27 1030 for (iPad = 0; iPad < kNpad; iPad++) {
1031
1032 Int_t colPos = colE + iPad - 1;
1033 if (colPos < 0) continue;
1034 if (colPos >= nColMax) break;
1035
1036 // Add the signals
dde59437 1037 Int_t iCurrentTimeBin = iTimeBin;
e23fbb27 1038 signalOld[iPad] = signals->GetDataUnchecked(rowE,colPos,iCurrentTimeBin);
1039 if( colPos != colE ) {
1040 signalOld[iPad] += padSignal[iPad] * (timeResponse + crossTalk);
1041 }
1042 else {
1043 signalOld[iPad] += padSignal[iPad] * timeResponse;
1044 }
1045 signals->SetDataUnchecked(rowE,colPos,iCurrentTimeBin,signalOld[iPad]);
1046
1047 // Store the track index in the dictionary
1048 // Note: We store index+1 in order to allow the array to be compressed
3becff3c 1049 if (signalOld[iPad] > 0) {
e23fbb27 1050 for (iDict = 0; iDict < kNDict; iDict++) {
1051 Int_t oldTrack = dictionary[iDict]->GetDataUnchecked(rowE
1052 ,colPos
1053 ,iCurrentTimeBin);
1054 if (oldTrack == track+1) break;
1055 if (oldTrack == 0) {
1056 dictionary[iDict]->SetDataUnchecked(rowE,colPos,iCurrentTimeBin,track+1);
1057 break;
1058 }
71d9fa7b 1059 }
1060 }
872a7aba 1061
e23fbb27 1062 } // Loop: pads
f7336fa3 1063
e23fbb27 1064 } // Loop: time bins
f7336fa3 1065
e23fbb27 1066 } // Loop: electrons of a single hit
f7336fa3 1067
e23fbb27 1068 } // If: detector and test hit
f7336fa3 1069
e23fbb27 1070 hit = (AliTRDhit *) fTRD->NextHit();
f7336fa3 1071
e23fbb27 1072 } // Loop: hits of one primary track
1073
1074 } // Loop: primary tracks
1075
1076 if (fDebug > 0) {
1077 printf("<AliTRDdigitizer::MakeDigits> ");
abaf1f1d 1078 printf("Finished analyzing %d hits\n",countHits);
1079 }
793ff80c 1080
0c24ba98 1081 // The coupling factor
3551db50 1082 Double_t coupling = simParam->GetPadCoupling()
1083 * simParam->GetTimeCoupling();
0c24ba98 1084
1085 // The conversion factor
a5cadd36 1086 Double_t convert = kEl2fC
3551db50 1087 * simParam->GetChipGain();
6244debe 1088
793ff80c 1089 // Loop through all chambers to finalize the digits
0c24ba98 1090 Int_t iDetBeg = 0;
1091 Int_t iDetEnd = AliTRDgeometry::Ndet();
0c24ba98 1092 for (Int_t iDet = iDetBeg; iDet < iDetEnd; iDet++) {
793ff80c 1093
872a7aba 1094 Int_t plane = fGeo->GetPlane(iDet);
1095 Int_t sector = fGeo->GetSector(iDet);
1096 Int_t chamber = fGeo->GetChamber(iDet);
3551db50 1097 Int_t nRowMax = commonParam->GetRowMax(plane,chamber,sector);
1098 Int_t nColMax = commonParam->GetColMax(plane);
793ff80c 1099
e23fbb27 1100 Double_t *inADC = new Double_t[nTimeTotal];
1101 Double_t *outADC = new Double_t[nTimeTotal];
1102
1103 if (fDebug > 0) {
1104 printf("<AliTRDdigitizer::MakeDigits> ");
793ff80c 1105 printf("Digitization for chamber %d\n",iDet);
1106 }
da581aea 1107
793ff80c 1108 // Add a container for the digits of this detector
abaf1f1d 1109 digits = fDigitsManager->GetDigits(iDet);
793ff80c 1110 // Allocate memory space for the digits buffer
0c24ba98 1111 if (digits->GetNtime() == 0) {
1112 digits->Allocate(nRowMax,nColMax,nTimeTotal);
1113 }
0c24ba98 1114
793ff80c 1115 // Get the signal container
1116 signals = (AliTRDdataArrayF *) signalsArray->At(iDet);
1117 if (signals->GetNtime() == 0) {
1118 // Create missing containers
872a7aba 1119 signals->Allocate(nRowMax,nColMax,nTimeTotal);
793ff80c 1120 }
1121 else {
1122 // Expand the container if neccessary
1123 if (fCompress) signals->Expand();
1124 }
1125 // Create the missing dictionary containers
3becff3c 1126 for (iDict = 0; iDict < kNDict; iDict++) {
1127 dictionary[iDict] = fDigitsManager->GetDictionary(iDet,iDict);
1128 if (dictionary[iDict]->GetNtime() == 0) {
1129 dictionary[iDict]->Allocate(nRowMax,nColMax,nTimeTotal);
0c24ba98 1130 }
793ff80c 1131 }
f7336fa3 1132
793ff80c 1133 Int_t nDigits = 0;
1134
6244debe 1135 // Don't create noise in detectors that are switched off
1136 if (CheckDetector(plane,chamber,sector)) {
1137
1138 // Create the digits for this chamber
872a7aba 1139 for (iRow = 0; iRow < nRowMax; iRow++ ) {
1140 for (iCol = 0; iCol < nColMax; iCol++ ) {
6244debe 1141
e23fbb27 1142 // Create summable digits
1143 if (fSDigits) {
6244debe 1144
e23fbb27 1145 for (iTime = 0; iTime < nTimeTotal; iTime++) {
872a7aba 1146 Float_t signalAmp = signals->GetDataUnchecked(iRow,iCol,iTime);
abaf1f1d 1147 signalAmp *= fSDigitsScale;
e23fbb27 1148 signalAmp = TMath::Min(signalAmp,(Float_t) 1.0e9);
abaf1f1d 1149 Int_t adc = (Int_t) signalAmp;
4487dad0 1150 if (adc > 0) nDigits++;
872a7aba 1151 digits->SetDataUnchecked(iRow,iCol,iTime,adc);
c1e4b257 1152 }
6244debe 1153
e23fbb27 1154 }
1155 // Create normal digits
1156 else {
6244debe 1157
e23fbb27 1158 for (iTime = 0; iTime < nTimeTotal; iTime++) {
1159 Float_t signalAmp = signals->GetDataUnchecked(iRow,iCol,iTime);
0c24ba98 1160 // Pad and time coupling
1161 signalAmp *= coupling;
7eea788e 1162 Float_t padgain = calibration->GetGainFactor(iDet, iCol, iRow);
1163 signalAmp *= padgain;
7e582e9f 1164 // Add the noise, starting from minus ADC baseline in electrons
3551db50 1165 Double_t baselineEl = simParam->GetADCbaseline() * (simParam->GetADCinRange()
1166 / simParam->GetADCoutRange())
7e582e9f 1167 / convert;
3551db50 1168 signalAmp = TMath::Max((Double_t) gRandom->Gaus(signalAmp,simParam->GetNoise())
7e582e9f 1169 ,-baselineEl);
6244debe 1170 // Convert to mV
1171 signalAmp *= convert;
7e582e9f 1172 // Add ADC baseline in mV
3551db50 1173 signalAmp += simParam->GetADCbaseline() * (simParam->GetADCinRange()
1174 / simParam->GetADCoutRange());
7e582e9f 1175 // Convert to ADC counts. Set the overflow-bit fADCoutRange if the
6244debe 1176 // signal is larger than fADCinRange
1177 Int_t adc = 0;
3551db50 1178 if (signalAmp >= simParam->GetADCinRange()) {
1179 adc = ((Int_t) simParam->GetADCoutRange());
6244debe 1180 }
1181 else {
3551db50 1182 adc = ((Int_t) (signalAmp * (simParam->GetADCoutRange()
1183 / simParam->GetADCinRange())));
6244debe 1184 }
e23fbb27 1185 inADC[iTime] = adc;
1186 outADC[iTime] = adc;
1187 }
6244debe 1188
e23fbb27 1189 for (iTime = 0; iTime < nTimeTotal; iTime++) {
6244debe 1190 // Store the amplitude of the digit if above threshold
3551db50 1191 if (outADC[iTime] > simParam->GetADCthreshold()) {
e23fbb27 1192 if (fDebug > 2) {
1193 printf(" iRow = %d, iCol = %d, iTime = %d, adc = %f\n"
1194 ,iRow,iCol,iTime,outADC[iTime]);
6244debe 1195 }
1196 nDigits++;
3583ac1a 1197 digits->SetDataUnchecked(iRow,iCol,iTime,((Int_t) outADC[iTime]));
6244debe 1198 }
6244debe 1199 }
1200
1201 }
e23fbb27 1202
6244debe 1203 }
793ff80c 1204 }
6244debe 1205
793ff80c 1206 }
1207
1208 // Compress the arrays
3becff3c 1209 digits->Compress(1,0);
1210 for (iDict = 0; iDict < kNDict; iDict++) {
1211 dictionary[iDict]->Compress(1,0);
1212 }
f7336fa3 1213
3becff3c 1214 totalSizeDigits += digits->GetSize();
1215 totalSizeDict0 += dictionary[0]->GetSize();
1216 totalSizeDict1 += dictionary[1]->GetSize();
1217 totalSizeDict2 += dictionary[2]->GetSize();
0c24ba98 1218
3becff3c 1219 Float_t nPixel = nRowMax * nColMax * nTimeTotal;
1220 if (fDebug > 0) {
1221 printf("<AliTRDdigitizer::MakeDigits> ");
1222 printf("Found %d digits in detector %d (%3.0f).\n"
1223 ,nDigits,iDet
1224 ,100.0 * ((Float_t) nDigits) / nPixel);
1225 }
abaf1f1d 1226
3becff3c 1227 if (fCompress) signals->Compress(1,0);
f7336fa3 1228
e23fbb27 1229 delete [] inADC;
1230 delete [] outADC;
1231
f7336fa3 1232 }
1233
0c24ba98 1234 if (signalsArray) {
1235 delete signalsArray;
1236 signalsArray = 0;
1237 }
1238
e23fbb27 1239 if (fDebug > 0) {
1240 printf("<AliTRDdigitizer::MakeDigits> ");
abaf1f1d 1241 printf("Total number of analyzed hits = %d\n",countHits);
3becff3c 1242 printf("<AliTRDdigitizer::MakeDigits> ");
1243 printf("Total digits data size = %d, %d, %d, %d\n",totalSizeDigits
1244 ,totalSizeDict0
1245 ,totalSizeDict1
1246 ,totalSizeDict2);
abaf1f1d 1247 }
1248
1249 return kTRUE;
1250
1251}
1252
1253//_____________________________________________________________________________
1254void AliTRDdigitizer::AddSDigitsManager(AliTRDdigitsManager *man)
1255{
1256 //
1257 // Add a digits manager for s-digits to the input list.
1258 //
1259
1260 fSDigitsManagerList->Add(man);
1261
1262}
1263
1264//_____________________________________________________________________________
b1113c6b 1265void AliTRDdigitizer::DeleteSDigitsManager()
1266{
1267 //
1268 // Removes digits manager from the input list.
1269 //
1270
1271 fSDigitsManagerList->Delete();
1272
1273}
1274
1275//_____________________________________________________________________________
abaf1f1d 1276Bool_t AliTRDdigitizer::ConvertSDigits()
1277{
1278 //
1279 // Converts s-digits to normal digits
1280 //
1281
1282 // Number of track dictionary arrays
1283 const Int_t kNDict = AliTRDdigitsManager::kNDict;
1284
1285 // Converts number of electrons to fC
1286 const Double_t kEl2fC = 1.602E-19 * 1.0E15;
1287
1288 Int_t iDict = 0;
e23fbb27 1289 Int_t iRow;
1290 Int_t iCol;
1291 Int_t iTime;
abaf1f1d 1292
4487dad0 1293 if (!fPar) {
1294 fPar = new AliTRDparameter("TRDparameter","Standard parameter");
1295 if (fDebug > 0) {
1296 printf("<AliTRDdigitizer::ConvertSDigits> ");
1297 printf("Create the default parameter object\n");
1298 }
abaf1f1d 1299 }
1300
3551db50 1301 AliTRDSimParam* simParam = AliTRDSimParam::Instance();
1302 if (!simParam)
1303 {
1304 printf("<AliTRDdigitizer::ConvertSDigits> ");
1305 printf("Could not get simulation params\n");
1306 return kFALSE;
1307 }
1308
1309 AliTRDCommonParam* commonParam = AliTRDCommonParam::Instance();
1310 if (!commonParam)
1311 {
1312 printf("<AliTRDdigitizer::ConvertSDigits> ");
1313 printf("Could not get common params\n");
1314 return kFALSE;
1315 }
1316
1317
1318 AliTRDcalibDB* calibration = AliTRDcalibDB::Instance();
1319 if (!calibration)
1320 {
1321 printf("<AliTRDdigitizer::ConvertSDigits> ");
1322 printf("Could not get calibration object\n");
1323 return kFALSE;
1324 }
1325
abaf1f1d 1326 Double_t sDigitsScale = 1.0 / GetSDigitsScale();
3551db50 1327 Double_t noise = simParam->GetNoise();
1328 Double_t padCoupling = simParam->GetPadCoupling();
1329 Double_t timeCoupling = simParam->GetTimeCoupling();
1330 Double_t chipGain = simParam->GetChipGain();
0c24ba98 1331 Double_t coupling = padCoupling * timeCoupling;
1332 Double_t convert = kEl2fC * chipGain;
3551db50 1333 Double_t adcInRange = simParam->GetADCinRange();
1334 Double_t adcOutRange = simParam->GetADCoutRange();
1335 Int_t adcThreshold = simParam->GetADCthreshold();
1336 Int_t adcBaseline = simParam->GetADCbaseline();
abaf1f1d 1337
1338 AliTRDdataArrayI *digitsIn;
1339 AliTRDdataArrayI *digitsOut;
1340 AliTRDdataArrayI *dictionaryIn[kNDict];
1341 AliTRDdataArrayI *dictionaryOut[kNDict];
1342
3551db50 1343 Int_t nTimeTotal = calibration->GetNumberOfTimeBins();
1344
abaf1f1d 1345 // Loop through the detectors
1346 for (Int_t iDet = 0; iDet < AliTRDgeometry::Ndet(); iDet++) {
da581aea 1347
e23fbb27 1348 if (fDebug > 0) {
1349 printf("<AliTRDdigitizer::ConvertSDigits> ");
abaf1f1d 1350 printf("Convert detector %d to digits.\n",iDet);
1351 }
1352
1353 Int_t plane = fGeo->GetPlane(iDet);
1354 Int_t sector = fGeo->GetSector(iDet);
1355 Int_t chamber = fGeo->GetChamber(iDet);
3551db50 1356 Int_t nRowMax = commonParam->GetRowMax(plane,chamber,sector);
1357 Int_t nColMax = commonParam->GetColMax(plane);
abaf1f1d 1358
e23fbb27 1359 Double_t *inADC = new Double_t[nTimeTotal];
1360 Double_t *outADC = new Double_t[nTimeTotal];
1361
abaf1f1d 1362 digitsIn = fSDigitsManager->GetDigits(iDet);
1363 digitsIn->Expand();
1364 digitsOut = fDigitsManager->GetDigits(iDet);
1365 digitsOut->Allocate(nRowMax,nColMax,nTimeTotal);
1366 for (iDict = 0; iDict < kNDict; iDict++) {
1367 dictionaryIn[iDict] = fSDigitsManager->GetDictionary(iDet,iDict);
1368 dictionaryIn[iDict]->Expand();
1369 dictionaryOut[iDict] = fDigitsManager->GetDictionary(iDet,iDict);
1370 dictionaryOut[iDict]->Allocate(nRowMax,nColMax,nTimeTotal);
1371 }
1372
e23fbb27 1373 for (iRow = 0; iRow < nRowMax; iRow++ ) {
1374 for (iCol = 0; iCol < nColMax; iCol++ ) {
abaf1f1d 1375
e23fbb27 1376 for (iTime = 0; iTime < nTimeTotal; iTime++) {
abaf1f1d 1377 Double_t signal = (Double_t) digitsIn->GetDataUnchecked(iRow,iCol,iTime);
1378 signal *= sDigitsScale;
0c24ba98 1379 // Pad and time coupling
1380 signal *= coupling;
7e582e9f 1381 // Add the noise, starting from minus ADC baseline in electrons
1382 Double_t baselineEl = adcBaseline * (adcInRange / adcOutRange) / convert;
1383 signal = TMath::Max((Double_t) gRandom->Gaus(signal,noise),-baselineEl);
abaf1f1d 1384 // Convert to mV
1385 signal *= convert;
7e582e9f 1386 // add ADC baseline in mV
1387 signal += adcBaseline * (adcInRange / adcOutRange);
abaf1f1d 1388 // Convert to ADC counts. Set the overflow-bit adcOutRange if the
1389 // signal is larger than adcInRange
1390 Int_t adc = 0;
1391 if (signal >= adcInRange) {
1392 adc = ((Int_t) adcOutRange);
1393 }
1394 else {
1395 adc = ((Int_t) (signal * (adcOutRange / adcInRange)));
1396 }
e23fbb27 1397 inADC[iTime] = adc;
1398 outADC[iTime] = adc;
1399 }
1400
e23fbb27 1401 for (iTime = 0; iTime < nTimeTotal; iTime++) {
abaf1f1d 1402 // Store the amplitude of the digit if above threshold
e23fbb27 1403 if (outADC[iTime] > adcThreshold) {
3583ac1a 1404 digitsOut->SetDataUnchecked(iRow,iCol,iTime,((Int_t) outADC[iTime]));
e23fbb27 1405 // Copy the dictionary
1406 for (iDict = 0; iDict < kNDict; iDict++) {
1407 Int_t track = dictionaryIn[iDict]->GetDataUnchecked(iRow,iCol,iTime);
1408 dictionaryOut[iDict]->SetDataUnchecked(iRow,iCol,iTime,track);
1409 }
abaf1f1d 1410 }
abaf1f1d 1411 }
e23fbb27 1412
abaf1f1d 1413 }
1414 }
1415
1416 if (fCompress) {
1417 digitsIn->Compress(1,0);
1418 digitsOut->Compress(1,0);
1419 for (iDict = 0; iDict < kNDict; iDict++) {
1420 dictionaryIn[iDict]->Compress(1,0);
1421 dictionaryOut[iDict]->Compress(1,0);
1422 }
1423 }
1424
e23fbb27 1425 delete [] inADC;
1426 delete [] outADC;
1427
abaf1f1d 1428 }
f7336fa3 1429
1430 return kTRUE;
1431
1432}
1433
1434//_____________________________________________________________________________
abaf1f1d 1435Bool_t AliTRDdigitizer::MergeSDigits()
16bf9884 1436{
1437 //
abaf1f1d 1438 // Merges the input s-digits:
1439 // - The amplitude of the different inputs are summed up.
1440 // - Of the track IDs from the input dictionaries only one is
1441 // kept for each input. This works for maximal 3 different merged inputs.
16bf9884 1442 //
1443
abaf1f1d 1444 // Number of track dictionary arrays
1445 const Int_t kNDict = AliTRDdigitsManager::kNDict;
1446
4487dad0 1447 if (!fPar) {
1448 fPar = new AliTRDparameter("TRDparameter","Standard parameter");
1449 if (fDebug > 0) {
1450 printf("<AliTRDdigitizer::MergeSDigits> ");
1451 printf("Create the default parameter object\n");
1452 }
1453 }
1454
3551db50 1455 AliTRDSimParam* simParam = AliTRDSimParam::Instance();
1456 if (!simParam)
1457 {
1458 printf("<AliTRDdigitizer::MergeSDigits> ");
1459 printf("Could not get simulation params\n");
1460 return kFALSE;
1461 }
1462
1463 AliTRDCommonParam* commonParam = AliTRDCommonParam::Instance();
1464 if (!commonParam)
1465 {
1466 printf("<AliTRDdigitizer::MergeSDigits> ");
1467 printf("Could not get common params\n");
1468 return kFALSE;
1469 }
1470
1471 AliTRDcalibDB* calibration = AliTRDcalibDB::Instance();
1472 if (!calibration)
1473 {
1474 printf("<AliTRDdigitizer::MergeSDigits> ");
1475 printf("Could not get calibration object\n");
1476 return kFALSE;
1477 }
1478
abaf1f1d 1479 Int_t iDict = 0;
e23fbb27 1480 Int_t jDict = 0;
abaf1f1d 1481
1482 AliTRDdataArrayI *digitsA;
1483 AliTRDdataArrayI *digitsB;
1484 AliTRDdataArrayI *dictionaryA[kNDict];
1485 AliTRDdataArrayI *dictionaryB[kNDict];
1486
1487 // Get the first s-digits
1488 fSDigitsManager = (AliTRDdigitsManager *) fSDigitsManagerList->First();
1489 if (!fSDigitsManager) return kFALSE;
1490
1491 // Loop through the other sets of s-digits
1492 AliTRDdigitsManager *mergeSDigitsManager;
1493 mergeSDigitsManager = (AliTRDdigitsManager *)
1494 fSDigitsManagerList->After(fSDigitsManager);
1495
e23fbb27 1496 if (fDebug > 0) {
abaf1f1d 1497 if (mergeSDigitsManager) {
e23fbb27 1498 printf("<AliTRDdigitizer::MergeSDigits> ");
1499 printf("Merge %d input files.\n",fSDigitsManagerList->GetSize());
abaf1f1d 1500 }
1501 else {
e23fbb27 1502 printf("<AliTRDdigitizer::MergeSDigits> ");
abaf1f1d 1503 printf("Only one input file.\n");
1504 }
1505 }
1506
3551db50 1507 Int_t nTimeTotal = calibration->GetNumberOfTimeBins();
1508
abaf1f1d 1509 Int_t iMerge = 0;
1510 while (mergeSDigitsManager) {
1511
1512 iMerge++;
1513
1514 // Loop through the detectors
1515 for (Int_t iDet = 0; iDet < AliTRDgeometry::Ndet(); iDet++) {
1516
1517 Int_t plane = fGeo->GetPlane(iDet);
1518 Int_t sector = fGeo->GetSector(iDet);
1519 Int_t chamber = fGeo->GetChamber(iDet);
3551db50 1520 Int_t nRowMax = commonParam->GetRowMax(plane,chamber,sector);
1521 Int_t nColMax = commonParam->GetColMax(plane);
abaf1f1d 1522
1523 // Loop through the pixels of one detector and add the signals
1524 digitsA = fSDigitsManager->GetDigits(iDet);
1525 digitsB = mergeSDigitsManager->GetDigits(iDet);
1526 digitsA->Expand();
1527 digitsB->Expand();
1528 for (iDict = 0; iDict < kNDict; iDict++) {
1529 dictionaryA[iDict] = fSDigitsManager->GetDictionary(iDet,iDict);
1530 dictionaryB[iDict] = mergeSDigitsManager->GetDictionary(iDet,iDict);
1531 dictionaryA[iDict]->Expand();
1532 dictionaryB[iDict]->Expand();
1533 }
1534
4487dad0 1535 // Merge only detectors that contain a signal
1536 Bool_t doMerge = kTRUE;
1537 if (fMergeSignalOnly) {
1538 if (digitsA->GetOverThreshold(0) == 0) {
1539 doMerge = kFALSE;
1540 }
abaf1f1d 1541 }
1542
4487dad0 1543 if (doMerge) {
abaf1f1d 1544
4487dad0 1545 if (fDebug > 0) {
1546 printf("<AliTRDdigitizer::MergeSDigits> ");
1547 printf("Merge detector %d of input no.%d\n",iDet,iMerge+1);
1548 }
abaf1f1d 1549
4487dad0 1550 for (Int_t iRow = 0; iRow < nRowMax; iRow++ ) {
1551 for (Int_t iCol = 0; iCol < nColMax; iCol++ ) {
1552 for (Int_t iTime = 0; iTime < nTimeTotal; iTime++) {
1553
1554 // Add the amplitudes of the summable digits
1555 Int_t ampA = digitsA->GetDataUnchecked(iRow,iCol,iTime);
1556 Int_t ampB = digitsB->GetDataUnchecked(iRow,iCol,iTime);
1557 ampA += ampB;
1558 digitsA->SetDataUnchecked(iRow,iCol,iTime,ampA);
1559
1560 // Add the mask to the track id if defined.
1561 for (iDict = 0; iDict < kNDict; iDict++) {
1562 Int_t trackB = dictionaryB[iDict]->GetDataUnchecked(iRow,iCol,iTime);
1563 if ((fMasks) && (trackB > 0)) {
1564 for (jDict = 0; jDict < kNDict; jDict++) {
1565 Int_t trackA = dictionaryA[iDict]->GetDataUnchecked(iRow,iCol,iTime);
1566 if (trackA == 0) {
1567 trackA = trackB + fMasks[iMerge];
1568 dictionaryA[iDict]->SetDataUnchecked(iRow,iCol,iTime,trackA);
1569 }
1570 }
1571 }
e23fbb27 1572 }
abaf1f1d 1573
4487dad0 1574 }
abaf1f1d 1575 }
4487dad0 1576 }
1577
abaf1f1d 1578 }
1579
1580 if (fCompress) {
1581 digitsA->Compress(1,0);
1582 digitsB->Compress(1,0);
1583 for (iDict = 0; iDict < kNDict; iDict++) {
1584 dictionaryA[iDict]->Compress(1,0);
1585 dictionaryB[iDict]->Compress(1,0);
1586 }
1587 }
1588
1589 }
1590
1591 // The next set of s-digits
1592 mergeSDigitsManager = (AliTRDdigitsManager *)
1593 fSDigitsManagerList->After(mergeSDigitsManager);
1594
1595 }
1596
16bf9884 1597 return kTRUE;
1598
1599}
1600
1601//_____________________________________________________________________________
abaf1f1d 1602Bool_t AliTRDdigitizer::SDigits2Digits()
1603{
1604 //
1605 // Merges the input s-digits and converts them to normal digits
1606 //
1607
1608 if (!MergeSDigits()) return kFALSE;
1609
1610 return ConvertSDigits();
1611
1612}
1613
1614//_____________________________________________________________________________
793ff80c 1615Bool_t AliTRDdigitizer::CheckDetector(Int_t plane, Int_t chamber, Int_t sector)
1616{
1617 //
1618 // Checks whether a detector is enabled
1619 //
1620
1621 if ((fTRD->GetSensChamber() >= 0) &&
1622 (fTRD->GetSensChamber() != chamber)) return kFALSE;
1623 if ((fTRD->GetSensPlane() >= 0) &&
c1e4b257 1624 (fTRD->GetSensPlane() != plane)) return kFALSE;
793ff80c 1625 if ( fTRD->GetSensSector() >= 0) {
1626 Int_t sens1 = fTRD->GetSensSector();
1627 Int_t sens2 = sens1 + fTRD->GetSensSectorRange();
1628 sens2 -= ((Int_t) (sens2 / AliTRDgeometry::Nsect()))
1629 * AliTRDgeometry::Nsect();
1630 if (sens1 < sens2) {
1631 if ((sector < sens1) || (sector >= sens2)) return kFALSE;
1632 }
1633 else {
1634 if ((sector < sens1) && (sector >= sens2)) return kFALSE;
1635 }
1636 }
1637
1638 return kTRUE;
1639
1640}
1641
1642//_____________________________________________________________________________
0a29d0f1 1643Bool_t AliTRDdigitizer::WriteDigits() const
f7336fa3 1644{
1645 //
1646 // Writes out the TRD-digits and the dictionaries
1647 //
1648
bdbb05bb 1649 //Write parameters
1650 fRunLoader->CdGAFile();
1651 if (!gFile->Get("TRDparameter")) GetParameter()->Write();
1652
da581aea 1653 // Store the digits and the dictionary in the tree
abaf1f1d 1654 return fDigitsManager->WriteDigits();
f7336fa3 1655
1656}
793ff80c 1657
1658//_____________________________________________________________________________
88cb7938 1659void AliTRDdigitizer::InitOutput(Int_t iEvent)
8e64dd77 1660{
1661 //
1662 // Initializes the output branches
1663 //
1664
1665 fEvent = iEvent;
88cb7938 1666
1667 if (!fRunLoader)
1668 {
1669 Error("InitOutput","Run Loader is NULL");
1670 return;
1671 }
1672 AliLoader* loader = fRunLoader->GetLoader("TRDLoader");
1673 if (!loader)
1674 {
1675 Error("Open","Can not get TRD loader from Run Loader");
1676 return;
1677 }
1678
1679 TTree* tree = 0;
1680
1681 if (fSDigits)
1682 {
1683 //if we produce SDigits
1684 tree = loader->TreeS();
1685 if (!tree)
1686 {
1687 loader->MakeTree("S");
1688 tree = loader->TreeS();
1689 }
1690 }
1691 else
1692 {//if we produce Digits
1693 tree = loader->TreeD();
1694 if (!tree)
1695 {
1696 loader->MakeTree("D");
1697 tree = loader->TreeD();
1698 }
1699 }
1700 fDigitsManager->SetEvent(iEvent);
1701 fDigitsManager->MakeBranch(tree);
8e64dd77 1702
1703}
3551db50 1704
1705//_____________________________________________________________________________
1706Double_t AliTRDdigitizer::TimeStruct(Float_t vdrift, Double_t dist, Double_t z)
1707{
1708 //
1709 // Applies the time structure of the drift cells (by C.Lippmann).
1710 // The drift time of electrons to the anode wires depends on the
1711 // distance to the wire (z) and on the position in the drift region.
1712 //
1713 // input :
1714 // dist = radial distance from (cathode) pad plane [cm]
1715 // z = distance from anode wire (parallel to cathode planes) [cm]
1716 //
1717 // output :
1718 // tdrift = the drift time of an electron at the given position
1719 //
1720 // We interpolate between the drift time values at the two drift
1721 // velocities fVDlo and fVDhi, being smaller and larger than
1722 // fDriftVelocity. We use the two stored drift time maps fTimeStruct1
1723 // and fTimeStruct2, calculated for the two mentioned drift velocities.
1724 //
1725
1726 SampleTimeStruct(vdrift);
1727
1728 // indices:
1729 Int_t r1 = (Int_t)(10*dist);
1730 Int_t r2 = r1+1;
1731 if (r1<0) r1 = 0;
1732 if (r1>37) r1 = 37;
1733 const Int_t kz1 = (Int_t)(100*z/2.5);
1734 const Int_t kz2 = kz1+1;
1735
1736 if (r1<0 || r1>37 || kz1<0 || kz1>10) {
1737 printf("<AliTRDparameter::TimeStruct> Warning. Indices out of range: ");
1738 printf("dist=%.2f, z=%.2f, r1=%d, kz1=%d\n",dist,z,r1,kz1);
1739 }
1740
1741 const Float_t ky111 = fTimeStructInfo.fTimeStruct1[r1+38*kz1];
1742 const Float_t ky221 = (r2 <= 37 && kz2 <= 10) ? fTimeStructInfo.fTimeStruct1[r2+38*kz2] : fTimeStructInfo.fTimeStruct1[37+38*10];
1743 const Float_t ky121 = (kz2 <= 10) ? fTimeStructInfo.fTimeStruct1[r1+38*kz2] : fTimeStructInfo.fTimeStruct1[r1+38*10];
1744 const Float_t ky211 = (r2 <= 37) ? fTimeStructInfo.fTimeStruct1[r2+38*kz1] : fTimeStructInfo.fTimeStruct1[37+38*kz1];
1745
1746 // 2D Interpolation, lower drift time map
1747 const Float_t ky11 = (ky211-ky111)*10*dist + ky111 - (ky211-ky111)*r1;
1748 const Float_t ky21 = (ky221-ky121)*10*dist + ky121 - (ky221-ky121)*r1;
1749
1750 const Float_t ky112 = fTimeStructInfo.fTimeStruct2[r1+38*kz1];
1751 const Float_t ky222 = (r2 <= 37 && kz2 <= 10) ? fTimeStructInfo.fTimeStruct2[r2+38*kz2] : fTimeStructInfo.fTimeStruct2[37+38*10];
1752 const Float_t ky122 = (kz2 <= 10) ? fTimeStructInfo.fTimeStruct2[r1+38*kz2] : fTimeStructInfo.fTimeStruct2[r1+38*10];
1753 const Float_t ky212 = (r2 <= 37) ? fTimeStructInfo.fTimeStruct2[r2+38*kz1] : fTimeStructInfo.fTimeStruct2[37+38*kz1];
1754
1755 // 2D Interpolation, larger drift time map
1756 const Float_t ky12 = (ky212-ky112)*10*dist + ky112 - (ky212-ky112)*r1;
1757 const Float_t ky22 = (ky222-ky122)*10*dist + ky122 - (ky222-ky122)*r1;
1758
1759 // dist now is the drift distance to the anode wires (negative if electrons are
1760 // between anode wire plane and cathode pad plane)
1761 dist -= AliTRDgeometry::AmThick()/2.0;
1762
1763 // Get the drift times for the drift velocities fVDlo and fVDhi
1764 const Float_t ktdrift1 =
1765 ( TMath::Abs(dist)>0.005 || z>0.005 ) ? (ky21-ky11)*100*z/2.5+ky11-(ky21-ky11)*kz1 : 0.0;
1766 const Float_t ktdrift2 =
1767 ( TMath::Abs(dist)>0.005 || z>0.005 ) ? (ky22-ky12)*100*z/2.5+ky12-(ky22-ky12)*kz1 : 0.0;
1768
1769 // 1D Interpolation between the values at fVDlo and fVDhi
1770 Float_t a = (ktdrift2 - ktdrift1) / (fTimeStructInfo.fVDhi - fTimeStructInfo.fVDlo);
1771 Float_t b = ktdrift2 - a * fTimeStructInfo.fVDhi;
1772
1773
1774 //printf("(%.2f, %.2f): %f, %f -> %f\n",
1775 // dist+AliTRDgeometry::AmThick()/2.0, z, ktdrift1, ktdrift2, a*fDriftVelocity+b);
1776
1777 return a * vdrift + b;
1778
1779}
1780
1781//_____________________________________________________________________________
1782void AliTRDdigitizer::SampleTimeStruct(Float_t vdrift)
1783{
1784 //
1785 // Samples the timing structure of a drift cell
1786 // Drift Time data calculated with Garfield (by C.Lippmann)
1787 //
1788
1789 //TODO make caching proper, if same timing structure is selected: do not update timestructs!
1790
1791 if (vdrift == fTimeStructInfo.fLastVdrift)
1792 return;
1793
1794 fTimeStructInfo.fLastVdrift = vdrift;
1795
1796 // drift time maps are saved for some drift velocity values (in drift region):
1797 Float_t fVDsmp[8];
1798 fVDsmp[0] = 1.032;
1799 fVDsmp[1] = 1.158;
1800 fVDsmp[2] = 1.299;
1801 fVDsmp[3] = 1.450;
1802 fVDsmp[4] = 1.610;
1803 fVDsmp[5] = 1.783;
1804 fVDsmp[6] = 1.959;
1805 fVDsmp[7] = 2.134;
1806
1807 if ( vdrift < fVDsmp[0] ) {
1808 printf("<AliTRDparameter::SampleTimeStruct> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n");
1809 printf("<AliTRDparameter::SampleTimeStruct> Drift Velocity too small (%.3f<%.3f)\n"
1810 , vdrift, fVDsmp[0]);
1811 printf("<AliTRDparameter::SampleTimeStruct> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n");
1812 vdrift = fVDsmp[0];
1813 } else if ( vdrift > fVDsmp[7] ) {
1814 printf("<AliTRDparameter::SampleTimeStruct> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n");
1815 printf("<AliTRDparameter::SampleTimeStruct> Drift Velocity too large (%.3f>%.3f)\n"
1816 , vdrift,fVDsmp[6]);
1817 printf("<AliTRDparameter::SampleTimeStruct> !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n");
1818 vdrift = fVDsmp[7];
1819 }
1820
1821 const Int_t ktimebin = 38;
1822 const Int_t kZbin = 11;
1823
1824 // Garfield simulation at UD = -1500V; vd = 1.032cm/microsec, <driftfield> = 525V/cm
1825 Float_t time1500[ktimebin][kZbin] =
1826 {{0.09170, 0.09205, 0.09306, 0.09475, 0.09716, 0.10035,
1827 0.10445, 0.10993, 0.11838, 0.13986, 0.37858},
1828 {0.06588, 0.06626, 0.06739, 0.06926, 0.07186, 0.07524,
1829 0.07951, 0.08515, 0.09381, 0.11601, 0.35673},
1830 {0.03946, 0.04003, 0.04171, 0.04435, 0.04780, 0.05193,
1831 0.05680, 0.06306, 0.07290, 0.09873, 0.34748},
1832 {0.01151, 0.01283, 0.01718, 0.02282, 0.02880, 0.03479,
1833 0.04098, 0.04910, 0.06413, 0.10567, 0.36897},
1834 {0.01116, 0.01290, 0.01721, 0.02299, 0.02863, 0.03447,
1835 0.04074, 0.04984, 0.06839, 0.11625, 0.37277},
1836 {0.03919, 0.03974, 0.04131, 0.04380, 0.04703, 0.05102,
1837 0.05602, 0.06309, 0.07651, 0.10938, 0.36838},
1838 {0.06493, 0.06560, 0.06640, 0.06802, 0.07051, 0.07392,
1839 0.07853, 0.08510, 0.09690, 0.12621, 0.38058},
1840 {0.09174, 0.09186, 0.09225, 0.09303, 0.09477, 0.00000,
1841 0.11205, 0.11952, 0.13461, 0.16984, 0.43017},
1842 {0.14356, 0.14494, 0.14959, 0.16002, 0.18328, 0.27981,
1843 0.22785, 0.21240, 0.21948, 0.25965, 0.52392},
1844 {0.23120, 0.23366, 0.24046, 0.25422, 0.28071, 0.36914,
1845 0.32999, 0.31208, 0.31772, 0.35804, 0.62249},
1846 {0.32686, 0.32916, 0.33646, 0.35053, 0.37710, 0.46292,
1847 0.42773, 0.40948, 0.41497, 0.45527, 0.71955},
1848 {0.42353, 0.42583, 0.43317, 0.44727, 0.47380, 0.55884,
1849 0.52479, 0.50650, 0.51194, 0.55225, 0.81658},
1850 {0.52038, 0.52271, 0.53000, 0.54415, 0.57064, 0.65545,
1851 0.62172, 0.60341, 0.60885, 0.64915, 0.91339},
1852 {0.61724, 0.61953, 0.62694, 0.64098, 0.66756, 0.75226,
1853 0.71862, 0.70030, 0.70575, 0.74604, 1.01035},
1854 {0.71460, 0.71678, 0.72376, 0.73786, 0.76447, 0.84913,
1855 0.81551, 0.79720, 0.80264, 0.84292, 1.10723},
1856 {0.81101, 0.81334, 0.82066, 0.83475, 0.86127, 0.94599,
1857 0.91240, 0.89408, 0.89952, 0.93981, 1.20409},
1858 {0.90788, 0.91023, 0.91752, 0.93163, 0.95815, 1.04293,
1859 1.00929, 0.99096, 0.99640, 1.03669, 1.30106},
1860 {1.00477, 1.00707, 1.01449, 1.02852, 1.05504, 1.13976,
1861 1.10617, 1.08784, 1.09329, 1.13358, 1.39796},
1862 {1.10166, 1.10397, 1.11130, 1.12541, 1.15257, 1.23672,
1863 1.20307, 1.18472, 1.19018, 1.23046, 1.49486},
1864 {1.19854, 1.20084, 1.20818, 1.22235, 1.24885, 1.33355,
1865 1.29992, 1.28156, 1.28707, 1.32735, 1.59177},
1866 {1.29544, 1.29780, 1.30507, 1.31917, 1.34575, 1.43073,
1867 1.39681, 1.37851, 1.38396, 1.42377, 1.68854},
1868 {1.39236, 1.39462, 1.40205, 1.41607, 1.44259, 1.52745,
1869 1.49368, 1.47541, 1.48083, 1.52112, 1.78546},
1870 {1.49314, 1.49149, 1.49885, 1.51297, 1.53949, 1.62420,
1871 1.59016, 1.57231, 1.57772, 1.61800, 1.88048},
1872 {1.58610, 1.58839, 1.59572, 1.60983, 1.63635, 1.72109,
1873 1.68651, 1.66921, 1.67463, 1.71489, 1.97918},
1874 {1.68400, 1.68529, 1.69261, 1.70671, 1.73331, 1.81830,
1875 1.78341, 1.76605, 1.77150, 1.81179, 2.07608},
1876 {1.77991, 1.78215, 1.78952, 1.80385, 1.83014, 1.91486,
1877 1.88128, 1.86215, 1.86837, 1.90865, 2.17304},
1878 {1.87674, 1.87904, 1.88647, 1.90052, 1.92712, 2.01173,
1879 1.97812, 1.95905, 1.96527, 2.00710, 2.26979},
1880 {1.97369, 1.97594, 1.98326, 1.99869, 2.02442, 2.10865,
1881 2.07501, 2.05666, 2.06214, 2.10243, 2.36669},
1882 {2.07052, 2.07281, 2.08016, 2.09425, 2.12132, 2.20555,
1883 2.17182, 2.15341, 2.15904, 2.19933, 2.46363},
1884 {2.16742, 2.16971, 2.17707, 2.19114, 2.21766, 2.30240,
1885 2.26877, 2.25015, 2.25573, 2.29586, 2.56060},
1886 {2.26423, 2.26659, 2.27396, 2.28803, 2.31456, 2.40828,
1887 2.36567, 2.34705, 2.35282, 2.39765, 2.65744},
1888 {2.36153, 2.36349, 2.37330, 2.38501, 2.41159, 2.49940,
1889 2.46257, 2.44420, 2.44843, 2.48987, 2.75431},
1890 {2.46558, 2.46035, 2.46822, 2.48181, 2.50849, 2.59630,
1891 2.55947, 2.54112, 2.54513, 2.58677, 2.85094},
1892 {2.56248, 2.55723, 2.56486, 2.57871, 2.60520, 2.68998,
1893 2.65626, 2.63790, 2.64316, 2.68360, 2.94813},
1894 {2.65178, 2.65441, 2.66153, 2.67556, 2.70210, 2.78687,
1895 2.75319, 2.73463, 2.74032, 2.78060, 3.04503},
1896 {2.74868, 2.75131, 2.75870, 2.77245, 2.79385, 2.88700,
1897 2.85009, 2.83177, 2.83723, 2.87750, 3.14193},
1898 {2.84574, 2.84789, 2.85560, 2.86935, 2.89075, 2.98060,
1899 2.94576, 2.92868, 2.93356, 2.97436, 3.23868},
1900 {2.94239, 2.94469, 2.95221, 2.96625, 2.99345, 3.07747,
1901 3.04266, 3.02545, 3.03051, 3.07118, 3.33555}};
1902
1903 // Garfield simulation at UD = -1600V; vd = 1.158cm/microsec, <driftfield> = 558V/cm
1904 Float_t time1600[ktimebin][kZbin] =
1905 {{0.09169, 0.09203, 0.09305, 0.09473, 0.09714, 0.10032,
1906 0.10441, 0.10990, 0.11835, 0.13986, 0.37845},
1907 {0.06589, 0.06626, 0.06738, 0.06924, 0.07184, 0.07521,
1908 0.07947, 0.08512, 0.09379, 0.11603, 0.35648},
1909 {0.03947, 0.04003, 0.04171, 0.04434, 0.04778, 0.05190,
1910 0.05678, 0.06304, 0.07292, 0.09876, 0.34759},
1911 {0.01111, 0.01281, 0.01718, 0.02281, 0.02879, 0.03477,
1912 0.04097, 0.04910, 0.06415, 0.10573, 0.36896},
1913 {0.01120, 0.01311, 0.01721, 0.02279, 0.02862, 0.03446,
1914 0.04074, 0.04981, 0.06825, 0.11595, 0.37255},
1915 {0.03919, 0.03980, 0.04132, 0.04380, 0.04704, 0.05102,
1916 0.05602, 0.06302, 0.07633, 0.10896, 0.36743},
1917 {0.06531, 0.06528, 0.06631, 0.06805, 0.07053, 0.07392,
1918 0.07853, 0.08505, 0.09669, 0.12578, 0.37967},
1919 {0.09157, 0.09171, 0.09216, 0.09301, 0.09475, 0.00000,
1920 0.11152, 0.11879, 0.13352, 0.16802, 0.42750},
1921 {0.13977, 0.14095, 0.14509, 0.15433, 0.17534, 0.26406,
1922 0.21660, 0.20345, 0.21113, 0.25067, 0.51434},
1923 {0.21816, 0.22041, 0.22631, 0.23850, 0.26208, 0.34340,
1924 0.30755, 0.29237, 0.29878, 0.33863, 0.60258},
1925 {0.30344, 0.30547, 0.31241, 0.32444, 0.34809, 0.42696,
1926 0.39464, 0.37919, 0.38546, 0.42530, 0.68926},
1927 {0.38969, 0.39164, 0.39810, 0.41059, 0.43441, 0.51246,
1928 0.48112, 0.46562, 0.47191, 0.51172, 0.77558},
1929 {0.47592, 0.47799, 0.48442, 0.49689, 0.52061, 0.59855,
1930 0.56752, 0.55201, 0.55826, 0.59808, 0.86202},
1931 {0.56226, 0.56428, 0.57074, 0.58324, 0.60696, 0.68483,
1932 0.65388, 0.63837, 0.64461, 0.68445, 0.94830},
1933 {0.64881, 0.65063, 0.65709, 0.66958, 0.69331, 0.77117,
1934 0.74023, 0.72472, 0.73098, 0.77079, 1.03486},
1935 {0.73506, 0.73698, 0.74344, 0.75596, 0.77964, 0.85751,
1936 0.82658, 0.81107, 0.81731, 0.85712, 1.12106},
1937 {0.82132, 0.82333, 0.82979, 0.84228, 0.86608, 0.94386,
1938 0.91293, 0.89742, 0.90367, 0.94335, 1.20737},
1939 {0.90767, 0.90968, 0.91614, 0.92863, 0.95236, 1.03021,
1940 0.99928, 0.98377, 0.99001, 1.02984, 1.29371},
1941 {0.99410, 0.99602, 1.00257, 1.01498, 1.03869, 1.11720,
1942 1.08563, 1.07011, 1.07637, 1.11621, 1.37873},
1943 {1.08036, 1.08240, 1.08884, 1.10138, 1.12504, 1.20301,
1944 1.17198, 1.15647, 1.16272, 1.20255, 1.46651},
1945 {1.16670, 1.16872, 1.17525, 1.18783, 1.21139, 1.28934,
1946 1.25833, 1.24281, 1.24909, 1.28889, 1.55275},
1947 {1.25307, 1.25510, 1.26153, 1.27404, 1.29773, 1.37584,
1948 1.34469, 1.32916, 1.33536, 1.37524, 1.63915},
1949 {1.33942, 1.34146, 1.34788, 1.36040, 1.38410, 1.46438,
1950 1.43105, 1.41537, 1.42176, 1.46158, 1.72538},
1951 {1.42579, 1.42782, 1.43458, 1.44674, 1.47043, 1.55085,
1952 1.51675, 1.50168, 1.50810, 1.54793, 1.81174},
1953 {1.51207, 1.51454, 1.52060, 1.53307, 1.55684, 1.63478,
1954 1.60336, 1.58820, 1.59446, 1.63414, 1.89814},
1955 {1.59856, 1.60047, 1.60693, 1.61942, 1.64317, 1.72257,
1956 1.69008, 1.67454, 1.68080, 1.72063, 1.98433},
1957 {1.68481, 1.68682, 1.69330, 1.70584, 1.72949, 1.80752,
1958 1.77643, 1.76089, 1.76716, 1.80692, 2.07069},
1959 {1.77117, 1.77319, 1.77969, 1.79260, 1.81583, 1.89376,
1960 1.86226, 1.84720, 1.85355, 1.89256, 2.15343},
1961 {1.85748, 1.85967, 1.86605, 1.87848, 1.90222, 1.98010,
1962 1.94913, 1.93271, 1.93981, 1.97968, 2.24355},
1963 {1.94386, 1.94587, 1.95233, 1.96484, 1.98854, 2.06646,
1964 2.03542, 2.01755, 2.02617, 2.06604, 2.32993},
1965 {2.03022, 2.03230, 2.03868, 2.05134, 2.07488, 2.15367,
1966 2.12178, 2.10391, 2.11252, 2.15432, 2.41623},
1967 {2.11656, 2.11857, 2.12505, 2.13772, 2.16147, 2.23919,
1968 2.20817, 2.19265, 2.20744, 2.23872, 2.49996},
1969 {2.20291, 2.20611, 2.21137, 2.22387, 2.24758, 2.32563,
1970 2.29450, 2.27901, 2.28525, 2.32507, 2.58897},
1971 {2.28922, 2.29172, 2.29774, 2.31345, 2.33400, 2.41287,
1972 2.38086, 2.36535, 2.37160, 2.40869, 2.67113},
1973 {2.37572, 2.37764, 2.38410, 2.39803, 2.42046, 2.49817,
1974 2.46721, 2.45171, 2.45794, 2.49505, 2.76061},
1975 {2.46190, 2.46396, 2.47043, 2.48340, 2.50665, 2.58453,
1976 2.55357, 2.53728, 2.54430, 2.58407, 2.84816},
1977 {2.54833, 2.55032, 2.55679, 2.56976, 2.59312, 2.67103,
1978 2.63993, 2.62364, 2.63062, 2.67040, 2.93444},
1979 {2.63456, 2.63660, 2.64304, 2.65555, 2.67938, 2.75739,
1980 2.72629, 2.71064, 2.71688, 2.75671, 3.01886}};
1981
1982 // Garfield simulation at UD = -1700V; vd = 1.299cm/microsec, <driftfield> = 590V/cm
1983 Float_t time1700[ktimebin][kZbin] =
1984 {{0.09167, 0.09201, 0.09302, 0.09471, 0.09712, 0.10029,
1985 0.10438, 0.10986, 0.11832, 0.13986, 0.37824},
1986 {0.06591, 0.06626, 0.06736, 0.06923, 0.07183, 0.07519,
1987 0.07944, 0.08511, 0.09378, 0.11603, 0.35625},
1988 {0.03946, 0.04003, 0.04170, 0.04433, 0.04777, 0.05189,
1989 0.05676, 0.06301, 0.07291, 0.09880, 0.34724},
1990 {0.01110, 0.01281, 0.01718, 0.02280, 0.02879, 0.03476,
1991 0.04096, 0.04910, 0.06417, 0.10582, 0.36861},
1992 {0.01115, 0.01294, 0.01721, 0.02276, 0.02862, 0.03447,
1993 0.04074, 0.04980, 0.06812, 0.11565, 0.37231},
1994 {0.03920, 0.03974, 0.04133, 0.04381, 0.04706, 0.05105,
1995 0.05603, 0.06299, 0.07618, 0.10860, 0.36646},
1996 {0.06498, 0.06529, 0.06634, 0.06808, 0.07055, 0.07395,
1997 0.07852, 0.08500, 0.09650, 0.12532, 0.37850},
1998 {0.09143, 0.09159, 0.09207, 0.09297, 0.09473, 0.00000,
1999 0.11102, 0.11809, 0.13245, 0.16627, 0.42496},
2000 {0.13646, 0.13750, 0.14112, 0.14926, 0.16806, 0.24960,
2001 0.20627, 0.19536, 0.20366, 0.24256, 0.50557},
2002 {0.20678, 0.20848, 0.21384, 0.22450, 0.24552, 0.32018,
2003 0.28740, 0.27477, 0.28196, 0.32128, 0.58475},
2004 {0.28287, 0.28461, 0.29020, 0.30108, 0.32224, 0.39467,
2005 0.36500, 0.35217, 0.35926, 0.39860, 0.66194},
2006 {0.35972, 0.36145, 0.36713, 0.37797, 0.39912, 0.47091,
2007 0.44212, 0.42925, 0.43632, 0.47563, 0.73892},
2008 {0.43667, 0.43841, 0.44413, 0.45494, 0.47607, 0.54780,
2009 0.51912, 0.50627, 0.51334, 0.55254, 0.81595},
2010 {0.51365, 0.51540, 0.52101, 0.53193, 0.55305, 0.62463,
2011 0.59617, 0.58328, 0.59035, 0.62965, 0.89303},
2012 {0.59064, 0.59240, 0.59801, 0.60893, 0.63009, 0.70169,
2013 0.67317, 0.66028, 0.66735, 0.70666, 0.96995},
2014 {0.66765, 0.66939, 0.67501, 0.68592, 0.70724, 0.77863,
2015 0.75016, 0.73728, 0.74435, 0.78366, 1.04696},
2016 {0.74464, 0.74636, 0.75200, 0.76293, 0.78405, 0.85561,
2017 0.82716, 0.81427, 0.82133, 0.86064, 1.12396},
2018 {0.82165, 0.82340, 0.82902, 0.83991, 0.86104, 0.93266,
2019 0.90414, 0.89128, 0.89834, 0.93763, 1.20100},
2020 {0.89863, 0.90042, 0.90659, 0.91705, 0.93805, 1.00960,
2021 0.98115, 0.96825, 0.97533, 1.01462, 1.27801},
2022 {0.97563, 0.97740, 0.98310, 0.99391, 1.01504, 1.08659,
2023 1.05814, 1.04526, 1.05233, 1.09163, 1.35503},
2024 {1.05276, 1.05451, 1.06002, 1.07090, 1.09099, 1.16357,
2025 1.13516, 1.12225, 1.12933, 1.16863, 1.43195},
2026 {1.12977, 1.13138, 1.13700, 1.14792, 1.16797, 1.24061,
2027 1.21212, 1.19926, 1.20626, 1.24554, 1.50900},
2028 {1.20664, 1.20839, 1.21400, 1.22490, 1.24606, 1.31772,
2029 1.28914, 1.27382, 1.28329, 1.32262, 1.58550},
2030 {1.28367, 1.28541, 1.29099, 1.30189, 1.32312, 1.39460,
2031 1.36612, 1.34924, 1.36030, 1.39961, 1.66310},
2032 {1.36064, 1.36249, 1.36799, 1.37896, 1.40004, 1.48030,
2033 1.44314, 1.43032, 1.43731, 1.47659, 1.73442},
2034 {1.43762, 1.43937, 1.44497, 1.45618, 1.47704, 1.54932,
2035 1.52012, 1.50725, 1.51430, 1.55357, 1.81708},
2036 {1.51462, 1.51937, 1.52203, 1.53316, 1.55403, 1.62572,
2037 1.59713, 1.58424, 1.59128, 1.63061, 1.89406},
2038 {1.59162, 1.59338, 1.59947, 1.60989, 1.63103, 1.70270,
2039 1.67411, 1.66124, 1.66799, 1.70759, 1.97103},
2040 {1.66874, 1.67037, 1.67597, 1.68687, 1.70814, 1.77969,
2041 1.75112, 1.73806, 1.74530, 1.78457, 2.04794},
2042 {1.74693, 1.74749, 1.75297, 1.76476, 1.78500, 1.85667,
2043 1.82811, 1.81504, 1.82101, 1.86161, 2.12492},
2044 {1.82260, 1.82437, 1.82995, 1.84174, 1.86202, 1.93372,
2045 1.90509, 1.89202, 1.89930, 1.93859, 2.20189},
2046 {1.89964, 1.90135, 1.90693, 1.91789, 1.93952, 2.01080,
2047 1.98207, 1.96921, 1.97628, 2.01384, 2.27887},
2048 {1.97662, 1.97917, 1.98611, 1.99487, 2.01601, 2.08778,
2049 2.05846, 2.04623, 2.05330, 2.09244, 2.35585},
2050 {2.05359, 2.05615, 2.06309, 2.07187, 2.09867, 2.16459,
2051 2.13610, 2.12322, 2.13029, 2.16942, 2.43199},
2052 {2.13063, 2.13233, 2.13795, 2.14886, 2.17008, 2.24199,
2053 2.21310, 2.20020, 2.20727, 2.24659, 2.50983},
2054 {2.20761, 2.20931, 2.21955, 2.22624, 2.24708, 2.32147,
2055 2.29009, 2.27725, 2.28276, 2.32359, 2.58680},
2056 {2.28459, 2.29108, 2.29202, 2.30286, 2.32007, 2.39559,
2057 2.36683, 2.35422, 2.36119, 2.40058, 2.66081},
2058 {2.36153, 2.36806, 2.36889, 2.37985, 2.40092, 2.47828,
2059 2.44381, 2.43099, 2.43819, 2.47750, 2.73779}};
2060
2061 // Garfield simulation at UD = -1800V; vd = 1.450cm/microsec, <driftfield> = 623V/cm
2062 Float_t time1800[ktimebin][kZbin] =
2063 {{0.09166, 0.09199, 0.09300, 0.09470, 0.09709, 0.10026,
2064 0.10434, 0.10983, 0.11831, 0.13987, 0.37802},
2065 {0.06585, 0.06623, 0.06735, 0.06921, 0.07180, 0.07520,
2066 0.07941, 0.08507, 0.09376, 0.11604, 0.35624},
2067 {0.03945, 0.04004, 0.04169, 0.04432, 0.04776, 0.05187,
2068 0.05674, 0.06300, 0.07290, 0.09884, 0.34704},
2069 {0.01108, 0.01287, 0.01717, 0.02280, 0.02880, 0.03476,
2070 0.04095, 0.04909, 0.06419, 0.10589, 0.36843},
2071 {0.01115, 0.01287, 0.01720, 0.02276, 0.02862, 0.03448,
2072 0.04073, 0.04973, 0.06799, 0.11535, 0.37224},
2073 {0.03918, 0.03975, 0.04134, 0.04382, 0.04707, 0.05105,
2074 0.05603, 0.06296, 0.07605, 0.10822, 0.36560},
2075 {0.06498, 0.06532, 0.06635, 0.06809, 0.07058, 0.07395,
2076 0.07855, 0.08495, 0.09632, 0.12488, 0.37730},
2077 {0.09130, 0.09160, 0.09199, 0.09300, 0.09472, 0.00000,
2078 0.11059, 0.11747, 0.13146, 0.16462, 0.42233},
2079 {0.13364, 0.13449, 0.13767, 0.14481, 0.16147, 0.23635,
2080 0.19706, 0.18812, 0.19704, 0.23520, 0.49749},
2081 {0.19698, 0.19844, 0.20311, 0.21236, 0.23082, 0.29920,
2082 0.26936, 0.25927, 0.26732, 0.30601, 0.56871},
2083 {0.26518, 0.26670, 0.27160, 0.28099, 0.29955, 0.36597,
2084 0.33885, 0.32858, 0.33653, 0.37524, 0.63801},
2085 {0.33441, 0.33553, 0.34040, 0.34987, 0.36841, 0.43428,
2086 0.40797, 0.39763, 0.40556, 0.44425, 0.70698},
2087 {0.40296, 0.40447, 0.40934, 0.41881, 0.43737, 0.50306,
2088 0.47695, 0.46662, 0.47455, 0.51329, 0.77600},
2089 {0.47296, 0.47344, 0.47830, 0.48779, 0.50632, 0.57200,
2090 0.54593, 0.53559, 0.54351, 0.58222, 0.84489},
2091 {0.54089, 0.54264, 0.54727, 0.55673, 0.57529, 0.64094,
2092 0.61490, 0.60457, 0.61249, 0.65118, 0.91394},
2093 {0.60987, 0.61138, 0.61624, 0.62573, 0.64428, 0.70989,
2094 0.68397, 0.67354, 0.68147, 0.72015, 0.98291},
2095 {0.67883, 0.68035, 0.68521, 0.69469, 0.71324, 0.77896,
2096 0.75287, 0.74251, 0.75043, 0.78912, 1.04458},
2097 {0.74780, 0.74932, 0.75421, 0.76367, 0.78221, 0.84785,
2098 0.82185, 0.81148, 0.81941, 0.85811, 1.12085},
2099 {0.81690, 0.81830, 0.82316, 0.83263, 0.85120, 0.91683,
2100 0.89077, 0.88045, 0.88837, 0.92707, 1.18976},
2101 {0.88574, 0.88726, 0.89228, 0.90198, 0.92017, 0.98578,
2102 0.95974, 0.94947, 0.95734, 0.99604, 1.25873},
2103 {0.95493, 0.95624, 0.96110, 0.97058, 0.98913, 1.05481,
2104 1.02873, 1.01839, 1.02631, 1.06503, 1.32772},
2105 {1.02392, 1.02524, 1.03008, 1.03955, 1.05810, 1.12378,
2106 1.09757, 1.08605, 1.09530, 1.13399, 1.39669},
2107 {1.09270, 1.09418, 1.09911, 1.10854, 1.12714, 1.19281,
2108 1.16502, 1.15633, 1.16427, 1.20271, 1.46574},
2109 {1.16168, 1.16323, 1.16801, 1.17772, 1.19604, 1.26190,
2110 1.23399, 1.22531, 1.23323, 1.27194, 1.53475},
2111 {1.23061, 1.23214, 1.23698, 1.24669, 1.26503, 1.33073,
2112 1.30461, 1.29428, 1.30220, 1.34091, 1.60372},
2113 {1.29960, 1.30110, 1.30596, 1.31544, 1.33398, 1.39962,
2114 1.37228, 1.36323, 1.37121, 1.40988, 1.67273},
2115 {1.36851, 1.37007, 1.37512, 1.38441, 1.40297, 1.46865,
2116 1.44256, 1.43222, 1.44017, 1.47878, 1.74155},
2117 {1.43752, 1.43904, 1.44773, 1.45338, 1.47220, 1.53759,
2118 1.51136, 1.50119, 1.50914, 1.54775, 1.81050},
2119 {1.50646, 1.50802, 1.51288, 1.52237, 1.54097, 1.60697,
2120 1.58049, 1.57018, 1.57811, 1.61678, 1.87947},
2121 {1.57545, 1.57720, 1.58185, 1.59134, 1.60996, 1.67787,
2122 1.64929, 1.63914, 1.64707, 1.68570, 1.94851},
2123 {1.64442, 1.64617, 1.65081, 1.66035, 1.67893, 1.74684,
2124 1.71826, 1.70745, 1.71604, 1.75310, 2.01748},
2125 {1.71337, 1.71513, 1.71978, 1.72932, 1.74645, 1.81346,
2126 1.78739, 1.77642, 1.78501, 1.82151, 2.08644},
2127 {1.78238, 1.78410, 1.78876, 1.79824, 1.81678, 1.88332,
2128 1.85639, 1.84262, 1.85397, 1.89270, 2.15533},
2129 {1.85135, 1.85306, 1.85778, 1.86728, 1.88580, 1.95615,
2130 1.92536, 1.91171, 1.92283, 1.96165, 2.22428},
2131 {1.92774, 1.92184, 1.92672, 1.93618, 1.95477, 2.02048,
2132 1.99427, 1.98068, 1.99192, 2.03062, 2.29338},
2133 {1.98929, 1.99081, 1.99567, 2.00515, 2.02373, 2.08987,
2134 2.06332, 2.05249, 2.05939, 2.09928, 2.36227},
2135 {2.05829, 2.05978, 2.06464, 2.07414, 2.09272, 2.15850,
2136 2.12928, 2.12194, 2.12987, 2.16825, 2.43083},
2137 {2.12726, 2.12869, 2.13360, 2.14425, 2.16160, 2.22872,
2138 2.20118, 2.19078, 2.19876, 2.23416, 2.50007}};
2139
2140 // Garfield simulation at UD = -1900V; vd = 1.610cm/microsec, <driftfield> = 655V/cm
2141 Float_t time1900[ktimebin][kZbin] =
2142 {{0.09166, 0.09198, 0.09298, 0.09467, 0.09707, 0.10023,
2143 0.10431, 0.10980, 0.11828, 0.13988, 0.37789},
2144 {0.06584, 0.06622, 0.06735, 0.06920, 0.07179, 0.07514,
2145 0.07938, 0.08505, 0.09374, 0.11606, 0.35599},
2146 {0.03945, 0.04002, 0.04169, 0.04432, 0.04775, 0.05185,
2147 0.05672, 0.06298, 0.07290, 0.09888, 0.34695},
2148 {0.01109, 0.01281, 0.01717, 0.02279, 0.02878, 0.03476,
2149 0.04094, 0.04909, 0.06421, 0.10597, 0.36823},
2150 {0.01115, 0.01287, 0.01720, 0.02294, 0.02862, 0.03448,
2151 0.04074, 0.04973, 0.06783, 0.11506, 0.37206},
2152 {0.03940, 0.03975, 0.04135, 0.04386, 0.04708, 0.05106,
2153 0.05604, 0.06293, 0.07592, 0.10787, 0.36484},
2154 {0.06500, 0.06534, 0.06638, 0.06811, 0.07060, 0.07413,
2155 0.07852, 0.08491, 0.09614, 0.12446, 0.37626},
2156 {0.09119, 0.09140, 0.09194, 0.09293, 0.09471, 0.00000,
2157 0.11013, 0.11685, 0.13050, 0.16302, 0.41991},
2158 {0.13111, 0.13190, 0.13466, 0.14091, 0.15554, 0.22409,
2159 0.18846, 0.18167, 0.19113, 0.22854, 0.48995},
2160 {0.18849, 0.18975, 0.19380, 0.20185, 0.21797, 0.28050,
2161 0.25368, 0.24575, 0.25446, 0.29249, 0.55442},
2162 {0.24995, 0.25125, 0.25563, 0.26366, 0.27986, 0.34065,
2163 0.31605, 0.30815, 0.31680, 0.35482, 0.61697},
2164 {0.31187, 0.31324, 0.31745, 0.32580, 0.34205, 0.40217,
2165 0.37825, 0.37031, 0.37897, 0.41696, 0.67890},
2166 {0.37401, 0.37531, 0.37955, 0.38777, 0.40395, 0.46408,
2167 0.44037, 0.43242, 0.44108, 0.47906, 0.74122},
2168 {0.43610, 0.43741, 0.44161, 0.44986, 0.46604, 0.52614,
2169 0.50248, 0.49452, 0.50316, 0.54116, 0.80326},
2170 {0.49820, 0.49988, 0.50372, 0.51196, 0.52814, 0.58822,
2171 0.56459, 0.55661, 0.56527, 0.60326, 0.86526},
2172 {0.56032, 0.56161, 0.56582, 0.57408, 0.59024, 0.65032,
2173 0.62670, 0.61872, 0.62737, 0.66537, 0.92749},
2174 {0.62240, 0.62371, 0.62792, 0.63624, 0.65236, 0.71241,
2175 0.68881, 0.68081, 0.68947, 0.72750, 0.98941},
2176 {0.68449, 0.68581, 0.69002, 0.69828, 0.71444, 0.77452,
2177 0.75089, 0.74295, 0.75157, 0.78957, 1.05157},
2178 {0.74660, 0.74790, 0.75212, 0.76036, 0.77654, 0.83748,
2179 0.81299, 0.80501, 0.81193, 0.85168, 1.11375},
2180 {0.80870, 0.81017, 0.81423, 0.82246, 0.83867, 0.89908,
2181 0.87509, 0.86660, 0.87577, 0.91376, 1.17586},
2182 {0.87080, 0.87233, 0.87632, 0.88458, 0.90074, 0.96083,
2183 0.93718, 0.92922, 0.93787, 0.97588, 1.23794},
2184 {0.93291, 0.93422, 0.93844, 0.94667, 0.96293, 1.02295,
2185 0.99929, 0.99127, 0.99997, 1.03797, 1.29995},
2186 {0.99500, 0.99645, 1.00308, 1.00877, 1.02497, 1.08504,
2187 1.06140, 1.05343, 1.06203, 1.10006, 1.36216},
2188 {1.05712, 1.05926, 1.06262, 1.07092, 1.08706, 1.14754,
2189 1.12350, 1.11550, 1.12417, 1.16218, 1.42427},
2190 {1.11921, 1.12059, 1.12473, 1.13297, 1.14916, 1.21140,
2191 1.18560, 1.17284, 1.18625, 1.22414, 1.48629},
2192 {1.18140, 1.18262, 1.18690, 1.19508, 1.21125, 1.27139,
2193 1.24164, 1.23495, 1.24838, 1.28634, 1.54852},
2194 {1.24340, 1.24473, 1.24901, 1.25732, 1.27336, 1.33358,
2195 1.30793, 1.30179, 1.31047, 1.34848, 1.61066},
2196 {1.30551, 1.30684, 1.31104, 1.32056, 1.33553, 1.39609,
2197 1.37004, 1.36392, 1.37045, 1.41057, 1.67259},
2198 {1.36755, 1.36892, 1.37315, 1.39148, 1.39755, 1.45820,
2199 1.43215, 1.42602, 1.43467, 1.47268, 1.73477},
2200 {1.42966, 1.43101, 1.43549, 1.45359, 1.45976, 1.52031,
2201 1.49601, 1.48811, 1.49677, 1.53477, 1.79691},
2202 {1.49180, 1.49321, 1.49760, 1.51570, 1.52175, 1.58185,
2203 1.55771, 1.55023, 1.55888, 1.59672, 1.85501},
2204 {1.55391, 1.55527, 1.55943, 1.57782, 1.58391, 1.64395,
2205 1.62008, 1.61233, 1.62085, 1.65883, 1.92091},
2206 {1.61599, 1.61732, 1.62154, 1.63993, 1.64612, 1.70608,
2207 1.68237, 1.67108, 1.68301, 1.72110, 1.97931},
2208 {1.67808, 1.67948, 1.68364, 1.70204, 1.70823, 1.76858,
2209 1.74404, 1.73539, 1.74512, 1.78321, 2.04522},
2210 {1.74019, 1.74152, 1.74573, 1.76415, 1.77015, 1.83040,
2211 1.80615, 1.79366, 1.80723, 1.84509, 2.10742},
2212 {1.80235, 1.80362, 1.80783, 1.82626, 1.83227, 1.89246,
2213 1.86795, 1.85405, 1.86938, 1.90720, 2.16953},
2214 {1.86442, 1.86572, 1.86994, 1.88837, 1.89438, 1.95445,
2215 1.93006, 1.92283, 1.93148, 1.96931, 2.23147},
2216 {1.92700, 1.92783, 1.93197, 1.95049, 1.95649, 2.01668,
2217 1.99217, 1.98486, 1.99352, 2.03143, 2.29358}};
2218
2219 // Garfield simulation at UD = -2000V; vd = 1.783cm/microsec, <driftfield> = 688V/cm
2220 Float_t time2000[ktimebin][kZbin] =
2221 {{0.09176, 0.09196, 0.09296, 0.09465, 0.09704, 0.10020,
2222 0.10427, 0.10977, 0.11825, 0.13988, 0.37774},
2223 {0.06583, 0.06620, 0.06735, 0.06918, 0.07177, 0.07513,
2224 0.07936, 0.08503, 0.09372, 0.11606, 0.35586},
2225 {0.03944, 0.04001, 0.04170, 0.04431, 0.04774, 0.05184,
2226 0.05670, 0.06296, 0.07291, 0.09893, 0.34680},
2227 {0.01108, 0.01281, 0.01719, 0.02279, 0.02879, 0.03474,
2228 0.04093, 0.04908, 0.06422, 0.10605, 0.36800},
2229 {0.01114, 0.01287, 0.01720, 0.02276, 0.02863, 0.03449,
2230 0.04073, 0.04970, 0.06774, 0.11478, 0.37179},
2231 {0.03925, 0.03977, 0.04135, 0.04386, 0.04711, 0.05108,
2232 0.05604, 0.06290, 0.07580, 0.10748, 0.36386},
2233 {0.06501, 0.06536, 0.06640, 0.06814, 0.07062, 0.07398,
2234 0.07852, 0.08487, 0.09598, 0.12405, 0.37519},
2235 {0.09109, 0.09127, 0.09188, 0.09292, 0.09472, 0.00000,
2236 0.10964, 0.11630, 0.12960, 0.16150, 0.41765},
2237 {0.12898, 0.12968, 0.13209, 0.13749, 0.15034, 0.21286,
2238 0.18088, 0.17590, 0.18591, 0.22254, 0.48315},
2239 {0.18122, 0.18227, 0.18574, 0.19263, 0.20674, 0.26376,
2240 0.23960, 0.23375, 0.24316, 0.28047, 0.54179},
2241 {0.23674, 0.23784, 0.24142, 0.24847, 0.26264, 0.31810,
2242 0.29602, 0.29008, 0.29944, 0.33675, 0.59795},
2243 {0.29279, 0.29382, 0.29742, 0.30448, 0.31865, 0.37364,
2244 0.35215, 0.34629, 0.35555, 0.39286, 0.65411},
2245 {0.34875, 0.34987, 0.35346, 0.36054, 0.37472, 0.42956,
2246 0.40825, 0.40229, 0.41167, 0.44894, 0.71033},
2247 {0.40484, 0.40594, 0.40954, 0.41660, 0.43077, 0.48560,
2248 0.46433, 0.45840, 0.46772, 0.50500, 0.76632},
2249 {0.46090, 0.46201, 0.46560, 0.47267, 0.48684, 0.54167,
2250 0.52041, 0.51449, 0.52382, 0.56108, 0.82227},
2251 {0.51698, 0.51809, 0.52173, 0.52874, 0.54291, 0.59776,
2252 0.57646, 0.57052, 0.57986, 0.61717, 0.87836},
2253 {0.57306, 0.57418, 0.57782, 0.58513, 0.59899, 0.65380,
2254 0.63255, 0.62661, 0.63594, 0.67325, 0.93460},
2255 {0.62912, 0.63024, 0.63383, 0.64103, 0.65506, 0.70988,
2256 0.68484, 0.68267, 0.69202, 0.72878, 0.99046},
2257 {0.68521, 0.68633, 0.68990, 0.69699, 0.71115, 0.76595,
2258 0.74468, 0.73872, 0.74814, 0.78538, 1.04674},
2259 {0.74127, 0.74239, 0.74605, 0.75303, 0.77022, 0.82204,
2260 0.80078, 0.79484, 0.80416, 0.84147, 1.10261},
2261 {0.79736, 0.79846, 0.80206, 0.80947, 0.82330, 0.87813,
2262 0.85688, 0.85087, 0.86023, 0.89752, 1.15874},
2263 {0.85342, 0.85454, 0.85815, 0.86519, 0.87936, 0.93417,
2264 0.91293, 0.90428, 0.91631, 0.95360, 1.20760},
2265 {0.90949, 0.91061, 0.91423, 0.92128, 0.93544, 0.99026,
2266 0.96807, 0.96305, 0.97239, 1.00967, 1.27078},
2267 {0.96556, 0.96669, 0.97111, 0.97734, 0.99151, 1.04664,
2268 1.02508, 1.01879, 1.02846, 1.06167, 1.32695},
2269 {1.02167, 1.02279, 1.02656, 1.03341, 1.04759, 1.10242,
2270 1.08115, 1.07003, 1.08453, 1.12184, 1.38304},
2271 {1.07776, 1.07883, 1.08242, 1.08950, 1.10384, 1.16422,
2272 1.13725, 1.13133, 1.14061, 1.17793, 1.43910},
2273 {1.13379, 1.13492, 1.13864, 1.14567, 1.15973, 1.21455,
2274 1.19323, 1.18734, 1.19668, 1.23401, 1.49528},
2275 {1.18988, 1.19098, 1.19457, 1.20164, 1.21582, 1.27064,
2276 1.24937, 1.24044, 1.25275, 1.29004, 1.55137},
2277 {1.24592, 1.24706, 1.25087, 1.25773, 1.27188, 1.32670,
2278 1.30544, 1.29953, 1.30883, 1.34613, 1.60743},
2279 {1.30202, 1.30313, 1.30673, 1.31381, 1.32797, 1.38278,
2280 1.36151, 1.35167, 1.36490, 1.40221, 1.66306},
2281 {1.35809, 1.35921, 1.36282, 1.36986, 1.38403, 1.43888,
2282 1.41760, 1.41174, 1.42083, 1.45830, 1.71915},
2283 {1.41419, 1.41528, 1.41890, 1.42595, 1.44011, 1.49496,
2284 1.47368, 1.46769, 1.47706, 1.51436, 1.77523},
2285 {1.47131, 1.47141, 1.47494, 1.48850, 1.49620, 1.55137,
2286 1.52977, 1.51820, 1.53315, 1.57042, 1.83158},
2287 {1.52635, 1.52750, 1.53103, 1.53814, 1.55228, 1.60736,
2288 1.58503, 1.57986, 1.58920, 1.62649, 1.88767},
2289 {1.58418, 1.58355, 1.58711, 1.59526, 1.60833, 1.66316,
2290 1.63345, 1.63261, 1.64556, 1.68204, 1.94359},
2291 {1.64027, 1.63958, 1.64489, 1.65024, 1.66443, 1.71925,
2292 1.69794, 1.69201, 1.70143, 1.73865, 1.99968},
2293 {1.69450, 1.69566, 1.69940, 1.70697, 1.71841, 1.77819,
2294 1.75396, 1.74814, 1.75743, 1.79083, 2.05427},
2295 {1.75054, 1.75221, 1.75527, 1.76306, 1.77662, 1.83428,
2296 1.81006, 1.81173, 1.81345, 1.85076, 2.10289}};
2297
2298 // Garfield simulation at UD = -2100V; vd = 1.959cm/microsec, <driftfield> = 720V/cm
2299 Float_t time2100[ktimebin][kZbin] =
2300 {{0.09160, 0.09194, 0.09294, 0.09462, 0.09701, 0.10017,
2301 0.10424, 0.10974, 0.11823, 0.13988, 0.37762},
2302 {0.06585, 0.06619, 0.06731, 0.06916, 0.07174, 0.07509,
2303 0.07933, 0.08500, 0.09370, 0.11609, 0.35565},
2304 {0.03960, 0.04001, 0.04171, 0.04430, 0.04774, 0.05182,
2305 0.05668, 0.06294, 0.07291, 0.09896, 0.34676},
2306 {0.01109, 0.01280, 0.01716, 0.02279, 0.02876, 0.03474,
2307 0.04096, 0.04908, 0.06424, 0.10612, 0.36790},
2308 {0.01114, 0.01285, 0.01719, 0.02287, 0.02863, 0.03449,
2309 0.04073, 0.04964, 0.06759, 0.11446, 0.37162},
2310 {0.03922, 0.03977, 0.04146, 0.04386, 0.04711, 0.05109,
2311 0.05605, 0.06287, 0.07575, 0.10713, 0.36298},
2312 {0.06504, 0.06538, 0.06641, 0.06818, 0.07064, 0.07426,
2313 0.07852, 0.08483, 0.09581, 0.12363, 0.37424},
2314 {0.09103, 0.09129, 0.09186, 0.09291, 0.09476, 0.00000,
2315 0.10923, 0.11578, 0.12873, 0.16005, 0.41525},
2316 {0.12723, 0.12777, 0.12988, 0.13458, 0.14579, 0.20264,
2317 0.17421, 0.17078, 0.18132, 0.21708, 0.47699},
2318 {0.17508, 0.17601, 0.17897, 0.18487, 0.19698, 0.24881,
2319 0.22737, 0.22337, 0.23348, 0.27000, 0.53032},
2320 {0.22571, 0.22663, 0.22969, 0.23570, 0.24787, 0.29826,
2321 0.27871, 0.27462, 0.28471, 0.32122, 0.58166},
2322 {0.27664, 0.27759, 0.28067, 0.28669, 0.29891, 0.34898,
2323 0.32982, 0.32570, 0.33576, 0.37229, 0.63268},
2324 {0.32766, 0.32862, 0.33170, 0.33778, 0.34988, 0.39973,
2325 0.38088, 0.37675, 0.38680, 0.42333, 0.68159},
2326 {0.37872, 0.37966, 0.38275, 0.38875, 0.40093, 0.45073,
2327 0.43192, 0.42780, 0.43786, 0.47438, 0.73480},
2328 {0.42974, 0.43070, 0.43378, 0.43982, 0.45196, 0.50177,
2329 0.48297, 0.47884, 0.48889, 0.52544, 0.78581},
2330 {0.48081, 0.48175, 0.48482, 0.49084, 0.50302, 0.55290,
2331 0.53398, 0.52988, 0.53994, 0.57647, 0.83687},
2332 {0.53645, 0.53295, 0.53586, 0.54188, 0.55408, 0.60398,
2333 0.58504, 0.58092, 0.59100, 0.62768, 0.88773},
2334 {0.58345, 0.58409, 0.58690, 0.59292, 0.60510, 0.65562,
2335 0.63609, 0.63197, 0.64203, 0.67856, 0.93907},
2336 {0.63397, 0.63490, 0.63795, 0.64403, 0.65613, 0.70612,
2337 0.68714, 0.68301, 0.69294, 0.72955, 0.99000},
2338 {0.68496, 0.68592, 0.68899, 0.69504, 0.70733, 0.75708,
2339 0.73818, 0.73405, 0.74412, 0.78064, 1.04100},
2340 {0.73600, 0.73696, 0.74003, 0.74624, 0.75828, 0.80805,
2341 0.78904, 0.78512, 0.79517, 0.83152, 1.09205},
2342 {0.78709, 0.78801, 0.79108, 0.79709, 0.80931, 0.85906,
2343 0.84027, 0.83614, 0.84621, 0.88269, 1.14058},
2344 {0.83808, 0.83905, 0.84215, 0.84816, 0.86031, 0.91011,
2345 0.89139, 0.88718, 0.89725, 0.93377, 1.19413},
2346 {0.88916, 0.89010, 0.89320, 0.89920, 0.91136, 0.96117,
2347 0.94235, 0.93822, 0.94828, 0.98480, 1.24538},
2348 {0.94036, 0.94113, 0.94422, 0.95023, 0.96241, 1.01220,
2349 0.99310, 0.98927, 0.99933, 1.03585, 1.29629},
2350 {0.99139, 0.99220, 0.99525, 1.00127, 1.01344, 1.06324,
2351 1.04451, 1.04033, 1.04836, 1.08690, 1.34727},
2352 {1.04261, 1.04325, 1.04628, 1.05232, 1.06448, 1.12090,
2353 1.09546, 1.09136, 1.10142, 1.13795, 1.39831},
2354 {1.09331, 1.09429, 1.09742, 1.10336, 1.11557, 1.16547,
2355 1.14658, 1.13642, 1.15247, 1.18898, 1.44936},
2356 {1.14436, 1.14539, 1.14847, 1.15443, 1.16662, 1.21794,
2357 1.19763, 1.19329, 1.20349, 1.23956, 1.50043},
2358 {1.19533, 1.19651, 1.19943, 1.20548, 1.21666, 1.26753,
2359 1.24862, 1.24434, 1.25455, 1.29106, 1.55142},
2360 {1.24638, 1.24756, 1.25046, 1.25648, 1.26764, 1.31858,
2361 1.29967, 1.29538, 1.30499, 1.34211, 1.60250},
2362 {1.29747, 1.29847, 1.30175, 1.30753, 1.31869, 1.36969,
2363 1.35069, 1.34656, 1.35663, 1.39316, 1.64644},
2364 {1.35537, 1.34952, 1.35255, 1.35869, 1.36973, 1.41387,
2365 1.40173, 1.39761, 1.40768, 1.44396, 1.70238},
2366 {1.39956, 1.40056, 1.40380, 1.40961, 1.42178, 1.46492,
2367 1.45278, 1.45423, 1.45872, 1.49522, 1.75557},
2368 {1.45080, 1.45159, 1.45463, 1.46109, 1.47287, 1.52263,
2369 1.50382, 1.50050, 1.50977, 1.54502, 1.80670},
2370 {1.50165, 1.50264, 1.50570, 1.51214, 1.52233, 1.57370,
2371 1.55484, 1.55155, 1.56080, 1.59731, 1.85778},
2372 {1.55269, 1.55364, 1.55675, 1.56274, 1.57491, 1.62598,
2373 1.60590, 1.60259, 1.61185, 1.64836, 1.90883},
2374 {1.60368, 1.60469, 1.60779, 1.61373, 1.62596, 1.67738,
2375 1.65651, 1.65249, 1.66290, 1.69936, 1.95959}};
2376
2377 // Garfield simulation at UD = -2200V; vd = 2.134cm/microsec, <driftfield> = 753V/cm
2378 Float_t time2200[ktimebin][kZbin] =
2379 {{0.09162, 0.09194, 0.09292, 0.09460, 0.09702, 0.10014,
2380 0.10421, 0.10971, 0.11820, 0.13990, 0.37745},
2381 {0.06581, 0.06618, 0.06730, 0.06915, 0.07173, 0.07507,
2382 0.07931, 0.08497, 0.09368, 0.11609, 0.35560},
2383 {0.03947, 0.04001, 0.04167, 0.04429, 0.04772, 0.05183,
2384 0.05667, 0.06293, 0.07292, 0.09900, 0.34673},
2385 {0.01111, 0.01280, 0.01716, 0.02279, 0.02876, 0.03473,
2386 0.04091, 0.04907, 0.06426, 0.10620, 0.36766},
2387 {0.01113, 0.01285, 0.01719, 0.02276, 0.02863, 0.03452,
2388 0.04076, 0.04960, 0.06745, 0.11419, 0.37139},
2389 {0.03923, 0.03978, 0.04137, 0.04387, 0.04713, 0.05110,
2390 0.05605, 0.06284, 0.07551, 0.10677, 0.36210},
2391 {0.06505, 0.06540, 0.06644, 0.06820, 0.07069, 0.07401,
2392 0.07852, 0.08479, 0.09565, 0.12325, 0.37313},
2393 {0.09107, 0.09127, 0.09181, 0.09291, 0.09474, 0.00000,
2394 0.10883, 0.11528, 0.12789, 0.15865, 0.41313},
2395 {0.12559, 0.12622, 0.12800, 0.13206, 0.14166, 0.19331,
2396 0.16832, 0.16632, 0.17724, 0.21218, 0.47098},
2397 {0.16992, 0.17070, 0.17325, 0.17831, 0.18871, 0.23557,
2398 0.21690, 0.21451, 0.22514, 0.26082, 0.52034},
2399 {0.21640, 0.21722, 0.21987, 0.22500, 0.23540, 0.28097,
2400 0.26399, 0.26154, 0.27214, 0.30784, 0.56734},
2401 {0.26318, 0.26400, 0.26679, 0.27181, 0.28220, 0.32739,
2402 0.31090, 0.30842, 0.31902, 0.35474, 0.61415},
2403 {0.31001, 0.31085, 0.31348, 0.31866, 0.32903, 0.37412,
2404 0.35777, 0.35546, 0.36588, 0.40159, 0.66103},
2405 {0.35687, 0.35769, 0.36033, 0.36556, 0.37588, 0.42094,
2406 0.40523, 0.40214, 0.41273, 0.44841, 0.70785},
2407 {0.40372, 0.40457, 0.40723, 0.41234, 0.42273, 0.46778,
2408 0.45148, 0.44903, 0.45961, 0.49526, 0.75486},
2409 {0.45062, 0.45139, 0.45404, 0.45966, 0.46958, 0.51470,
2410 0.49833, 0.49584, 0.50644, 0.54211, 0.80160},
2411 {0.49742, 0.49825, 0.50088, 0.50605, 0.51644, 0.56148,
2412 0.54518, 0.54270, 0.55330, 0.58897, 0.84854},
2413 {0.54427, 0.54510, 0.54774, 0.55290, 0.56329, 0.60846,
2414 0.59203, 0.58955, 0.60014, 0.63578, 0.89528},
2415 {0.59119, 0.59199, 0.59471, 0.59975, 0.61014, 0.65533,
2416 0.63889, 0.63636, 0.64699, 0.68269, 0.94197},
2417 {0.63866, 0.63880, 0.64145, 0.64664, 0.65701, 0.70639,
2418 0.68574, 0.68325, 0.69385, 0.72949, 0.98900},
2419 {0.68483, 0.68566, 0.68831, 0.69347, 0.70386, 0.74890,
2420 0.73260, 0.73010, 0.74069, 0.77638, 1.03320},
2421 {0.73168, 0.73255, 0.73515, 0.74031, 0.75072, 0.79576,
2422 0.77117, 0.77501, 0.78755, 0.82318, 1.08006},
2423 {0.77854, 0.78310, 0.78200, 0.79525, 0.79756, 0.84281,
2424 0.81803, 0.82393, 0.83441, 0.87008, 1.12692},
2425 {0.82541, 0.82642, 0.82916, 0.83528, 0.84442, 0.89086,
2426 0.87315, 0.87079, 0.88125, 0.91694, 1.17648},
2427 {0.87226, 0.87308, 0.87602, 0.88086, 0.89128, 0.93772,
2428 0.92001, 0.91751, 0.92811, 0.95587, 1.22328},
2429 {0.91921, 0.91994, 0.92256, 0.92772, 0.94713, 0.98566,
2430 0.96690, 0.96436, 0.97495, 1.01064, 1.26882},
2431 {0.96790, 0.96679, 0.96941, 0.97463, 0.99399, 1.03001,
2432 1.01376, 1.01112, 1.02181, 1.05749, 1.31568},
2433 {1.01278, 1.01390, 1.01674, 1.02147, 1.03182, 1.07820,
2434 1.06056, 1.05798, 1.06867, 1.10433, 1.36390},
2435 {1.05964, 1.06076, 1.06331, 1.06833, 1.07870, 1.13297,
2436 1.10742, 1.10520, 1.11543, 1.15120, 1.41069},
2437 {1.10664, 1.10762, 1.10997, 1.11519, 1.12556, 1.17531,
2438 1.15427, 1.14620, 1.16229, 1.19805, 1.45758},
2439 {1.15352, 1.15421, 1.15683, 1.16218, 1.17242, 1.21910,
2440 1.20035, 1.19863, 1.20579, 1.24473, 1.50412},
2441 {1.20019, 1.20115, 1.20369, 1.20892, 1.21928, 1.26913,
2442 1.24721, 1.24549, 1.25605, 1.29159, 1.54920},
2443 {1.24707, 1.24846, 1.25052, 1.25602, 1.26608, 1.31558,
2444 1.29448, 1.29232, 1.30293, 1.33675, 1.59798},
2445 {1.29391, 1.29475, 1.29738, 1.30255, 1.31294, 1.36244,
2446 1.34167, 1.33918, 1.34979, 1.38229, 1.64496},
2447 {1.34078, 1.34304, 1.34424, 1.35565, 1.35980, 1.40930,
2448 1.38853, 1.38229, 1.39664, 1.42863, 1.69162},
2449 {1.38762, 1.38847, 1.39110, 1.39627, 1.40666, 1.45183,
2450 1.43539, 1.43289, 1.44348, 1.47549, 1.73876},
2451 {1.43524, 1.43533, 1.43796, 1.44310, 1.45371, 1.49305,
2452 1.48224, 1.47941, 1.49034, 1.52601, 1.78552},
2453 {1.48122, 1.48219, 1.48482, 1.48991, 1.50030, 1.53991,
2454 1.52898, 1.52653, 1.53653, 1.57282, 1.82386}};
2455
2456 if (fTimeStructInfo.fTimeStruct1) delete [] fTimeStructInfo.fTimeStruct1;
2457 fTimeStructInfo.fTimeStruct1 = new Float_t[ktimebin*kZbin];
2458
2459 if (fTimeStructInfo.fTimeStruct2) delete [] fTimeStructInfo.fTimeStruct2;
2460 fTimeStructInfo.fTimeStruct2 = new Float_t[ktimebin*kZbin];
2461
2462 for (Int_t ctrt = 0; ctrt<ktimebin; ctrt++) {
2463 for (Int_t ctrz = 0; ctrz<kZbin; ctrz++) {
2464 if ( vdrift > fVDsmp[6] ) {
2465 fTimeStructInfo.fTimeStruct1[ctrt+ctrz*ktimebin] = time2100[ctrt][ctrz];
2466 fTimeStructInfo.fTimeStruct2[ctrt+ctrz*ktimebin] = time2200[ctrt][ctrz];
2467 fTimeStructInfo.fVDlo = fVDsmp[6];
2468 fTimeStructInfo.fVDhi = fVDsmp[7];
2469 } else if ( vdrift > fVDsmp[5] ) {
2470 fTimeStructInfo.fTimeStruct1[ctrt+ctrz*ktimebin] = time2000[ctrt][ctrz];
2471 fTimeStructInfo.fTimeStruct2[ctrt+ctrz*ktimebin] = time2100[ctrt][ctrz];
2472 fTimeStructInfo.fVDlo = fVDsmp[5];
2473 fTimeStructInfo.fVDhi = fVDsmp[6];
2474 } else if ( vdrift > fVDsmp[4] ) {
2475 fTimeStructInfo.fTimeStruct1[ctrt+ctrz*ktimebin] = time1900[ctrt][ctrz];
2476 fTimeStructInfo.fTimeStruct2[ctrt+ctrz*ktimebin] = time2000[ctrt][ctrz];
2477 fTimeStructInfo.fVDlo = fVDsmp[4];
2478 fTimeStructInfo.fVDhi = fVDsmp[5];
2479 } else if ( vdrift > fVDsmp[3] ) {
2480 fTimeStructInfo.fTimeStruct1[ctrt+ctrz*ktimebin] = time1800[ctrt][ctrz];
2481 fTimeStructInfo.fTimeStruct2[ctrt+ctrz*ktimebin] = time1900[ctrt][ctrz];
2482 fTimeStructInfo.fVDlo = fVDsmp[3];
2483 fTimeStructInfo.fVDhi = fVDsmp[4];
2484 } else if ( vdrift > fVDsmp[2] ) {
2485 fTimeStructInfo.fTimeStruct1[ctrt+ctrz*ktimebin] = time1700[ctrt][ctrz];
2486 fTimeStructInfo.fTimeStruct2[ctrt+ctrz*ktimebin] = time1800[ctrt][ctrz];
2487 fTimeStructInfo.fVDlo = fVDsmp[2];
2488 fTimeStructInfo.fVDhi = fVDsmp[3];
2489 } else if ( vdrift > fVDsmp[1] ) {
2490 fTimeStructInfo.fTimeStruct1[ctrt+ctrz*ktimebin] = time1600[ctrt][ctrz];
2491 fTimeStructInfo.fTimeStruct2[ctrt+ctrz*ktimebin] = time1700[ctrt][ctrz];
2492 fTimeStructInfo.fVDlo = fVDsmp[1];
2493 fTimeStructInfo.fVDhi = fVDsmp[2];
2494 } else if ( vdrift > (fVDsmp[0] - 1.e-5) ) {
2495 fTimeStructInfo.fTimeStruct1[ctrt+ctrz*ktimebin] = time1500[ctrt][ctrz];
2496 fTimeStructInfo.fTimeStruct2[ctrt+ctrz*ktimebin] = time1600[ctrt][ctrz];
2497 fTimeStructInfo.fVDlo = fVDsmp[0];
2498 fTimeStructInfo.fVDhi = fVDsmp[1];
2499 }
2500 }
2501 }
2502}
2503
2504//_____________________________________________________________________________
2505void AliTRDdigitizer::RecalcDiffusion(Float_t vdrift)
2506{
2507 if (vdrift == fDiffusionInfo.fLastVdrift)
2508 return;
2509
2510 if (!fPar) {
2511 fPar = new AliTRDparameter("TRDparameter","Standard TRD parameter");
2512 if (fDebug > 0) {
2513 printf("<AliTRDdigitizer::RecalcDiffusion> ");
2514 printf("Create the default parameter object\n");
2515 }
2516 }
2517
2518 AliTRDSimParam* simParam = AliTRDSimParam::Instance();
2519 if (!simParam)
2520 {
2521 printf("<AliTRDdigitizer::RecalcDiffusion> ");
2522 printf("Could not get simulation params\n");
2523 return;
2524 }
2525
2526 AliTRDCommonParam* commonParam = AliTRDCommonParam::Instance();
2527 if (!commonParam)
2528 {
2529 printf("<AliTRDdigitizer::RecalcDiffusion> ");
2530 printf("Could not get common params\n");
2531 return;
2532 }
2533
2534 AliTRDcalibDB* calibration = AliTRDcalibDB::Instance();
2535 if (!calibration)
2536 {
2537 printf("<AliTRDdigitizer::RecalcDiffusion> ");
2538 printf("Could not get calibration object\n");
2539 return;
2540 }
2541
2542 Float_t field = commonParam->GetField();
2543 fDiffusionInfo.fLastVdrift = vdrift;
2544
2545 //DiffusionL
2546 {
2547 const Int_t kNb = 5;
2548 Float_t p0[kNb] = { 0.007440, 0.007493, 0.007513, 0.007672, 0.007831 };
2549 Float_t p1[kNb] = { 0.019252, 0.018912, 0.018636, 0.018012, 0.017343 };
2550 Float_t p2[kNb] = { -0.005042, -0.004926, -0.004867, -0.004650, -0.004424 };
2551 Float_t p3[kNb] = { 0.000195, 0.000189, 0.000195, 0.000182, 0.000169 };
2552
2553 Int_t ib = ((Int_t) (10 * (field - 0.15)));
2554 ib = TMath::Max( 0,ib);
2555 ib = TMath::Min(kNb,ib);
2556
2557 fDiffusionInfo.fDiffusionL = p0[ib]
2558 + p1[ib] * vdrift
2559 + p2[ib] * vdrift*vdrift
2560 + p3[ib] * vdrift*vdrift*vdrift;
2561 }
2562
2563 //DiffusionT
2564 {
2565 const Int_t kNb = 5;
2566 Float_t p0[kNb] = { 0.009550, 0.009599, 0.009674, 0.009757, 0.009850 };
2567 Float_t p1[kNb] = { 0.006667, 0.006539, 0.006359, 0.006153, 0.005925 };
2568 Float_t p2[kNb] = { -0.000853, -0.000798, -0.000721, -0.000635, -0.000541 };
2569 Float_t p3[kNb] = { 0.000131, 0.000122, 0.000111, 0.000098, 0.000085 };
2570
2571 Int_t ib = ((Int_t) (10 * (field - 0.15)));
2572 ib = TMath::Max( 0,ib);
2573 ib = TMath::Min(kNb,ib);
2574
2575 fDiffusionInfo.fDiffusionT = p0[ib]
2576 + p1[ib] * vdrift
2577 + p2[ib] * vdrift*vdrift
2578 + p3[ib] * vdrift*vdrift*vdrift;
2579 }
2580
2581 //OmegaTau
2582 fDiffusionInfo.fOmegaTau = calibration->GetOmegaTau(vdrift);
2583
2584 //Lorentzfactor
2585 {
2586 if (commonParam->ExBOn()) {
2587 fDiffusionInfo.fLorentzFactor = 1.0 / (1.0 + fDiffusionInfo.fOmegaTau*fDiffusionInfo.fOmegaTau);
2588 }
2589 else {
2590 fDiffusionInfo.fLorentzFactor = 1.0;
2591 }
2592 }
2593}
2594
2595//_____________________________________________________________________________
2596Float_t AliTRDdigitizer::GetDiffusionL(Float_t vdrift)
2597{
2598 //
2599 // Returns the longitudinal diffusion coefficient for a given drift
2600 // velocity <vd> and a B-field <b> for Xe/CO2 (15%).
2601 // The values are according to a GARFIELD simulation.
2602 //
2603
2604 RecalcDiffusion(vdrift);
2605 return fDiffusionInfo.fDiffusionL;
2606}
2607
2608//_____________________________________________________________________________
2609Float_t AliTRDdigitizer::GetDiffusionT(Float_t vdrift)
2610{
2611 //
2612 // Returns the transverse diffusion coefficient for a given drift
2613 // velocity <vd> and a B-field <b> for Xe/CO2 (15%).
2614 // The values are according to a GARFIELD simulation.
2615 //
2616
2617 RecalcDiffusion(vdrift);
2618 return fDiffusionInfo.fDiffusionT;
2619}
2620
2621//_____________________________________________________________________________
2622Int_t AliTRDdigitizer::Diffusion(Float_t vdrift, Double_t driftlength, Double_t *xyz)
2623{
2624 //
2625 // Applies the diffusion smearing to the position of a single electron
2626 //
2627
2628 RecalcDiffusion(vdrift);
2629
2630 Float_t driftSqrt = TMath::Sqrt(driftlength);
2631 Float_t sigmaT = driftSqrt * fDiffusionInfo.fDiffusionT;
2632 Float_t sigmaL = driftSqrt * fDiffusionInfo.fDiffusionL;
2633 xyz[0] = gRandom->Gaus(xyz[0], sigmaL * GetLorentzFactor(vdrift));
2634 xyz[1] = gRandom->Gaus(xyz[1], sigmaT * GetLorentzFactor(vdrift));
2635 xyz[2] = gRandom->Gaus(xyz[2], sigmaT);
2636
2637 return 1;
2638}
2639
2640//_____________________________________________________________________________
2641Float_t AliTRDdigitizer::GetLorentzFactor(Float_t vd)
2642{
2643 RecalcDiffusion(vd);
2644 return fDiffusionInfo.fLorentzFactor;
2645}
2646
2647//_____________________________________________________________________________
2648Int_t AliTRDdigitizer::ExB(Float_t vdrift, Double_t driftlength, Double_t *xyz)
2649{
2650 //
2651 // Applies E x B effects to the position of a single electron
2652 //
2653
2654 RecalcDiffusion(vdrift);
2655
2656 xyz[0] = xyz[0];
2657 xyz[1] = xyz[1] + fDiffusionInfo.fOmegaTau * driftlength;
2658 xyz[2] = xyz[2];
2659
2660 return 1;
2661}