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f7336fa3 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
15
88cb7938 16/* $Id$ */
f7336fa3 17
18///////////////////////////////////////////////////////////////////////////////
19// //
20// Creates and handles digits from TRD hits //
abaf1f1d 21// Author: C. Blume (C.Blume@gsi.de) //
f7336fa3 22// //
23// The following effects are included: //
24// - Diffusion //
25// - ExB effects //
26// - Gas gain including fluctuations //
27// - Pad-response (simple Gaussian approximation) //
abaf1f1d 28// - Time-response //
f7336fa3 29// - Electronics noise //
30// - Electronics gain //
31// - Digitization //
32// - ADC threshold //
33// The corresponding parameter can be adjusted via the various //
34// Set-functions. If these parameters are not explicitly set, default //
35// values are used (see Init-function). //
abaf1f1d 36// As an example on how to use this class to produce digits from hits //
37// have a look at the macro hits2digits.C //
38// The production of summable digits is demonstrated in hits2sdigits.C //
39// and the subsequent conversion of the s-digits into normal digits is //
40// explained in sdigits2digits.C. //
f7336fa3 41// //
42///////////////////////////////////////////////////////////////////////////////
43
6798b56e 44#include <stdlib.h>
45
f7336fa3 46#include <TMath.h>
47#include <TVector.h>
48#include <TRandom.h>
94de3818 49#include <TROOT.h>
50#include <TTree.h>
793ff80c 51#include <TFile.h>
52#include <TF1.h>
abaf1f1d 53#include <TList.h>
85cbec76 54#include <TTask.h>
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"
ad2cc20b 65#include "AliLog.h"
f7336fa3 66
67#include "AliTRD.h"
793ff80c 68#include "AliTRDhit.h"
f7336fa3 69#include "AliTRDdigitizer.h"
da581aea 70#include "AliTRDdataArrayI.h"
71#include "AliTRDdataArrayF.h"
793ff80c 72#include "AliTRDsegmentArray.h"
da581aea 73#include "AliTRDdigitsManager.h"
793ff80c 74#include "AliTRDgeometry.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;
abaf1f1d 95 fEvent = 0;
85a5290f 96 fMasks = 0;
abaf1f1d 97 fCompress = kTRUE;
abaf1f1d 98 fSDigits = kFALSE;
99 fSDigitsScale = 0.0;
4487dad0 100 fMergeSignalOnly = kFALSE;
0c24ba98 101
3becff3c 102 fTimeStructInfo.fLastVdrift = 0;
103 fTimeStructInfo.fTimeStruct1 = 0;
104 fTimeStructInfo.fTimeStruct2 = 0;
105 fTimeStructInfo.fVDlo = 0;
106 fTimeStructInfo.fVDhi = 0;
3551db50 107
3becff3c 108 fDiffusionInfo.fLastVdrift = 0;
109 fDiffusionInfo.fDiffusionT = 0.0;
110 fDiffusionInfo.fDiffusionL = 0.0;
3551db50 111 fDiffusionInfo.fLorentzFactor = 0.0;
112
113 Init();
3becff3c 114
f7336fa3 115}
116
117//_____________________________________________________________________________
118AliTRDdigitizer::AliTRDdigitizer(const Text_t *name, const Text_t *title)
85cbec76 119 :AliDigitizer(name,title)
f7336fa3 120{
121 //
85cbec76 122 // AliTRDdigitizer constructor
123 //
124
3551db50 125 Init();
3becff3c 126
85cbec76 127}
128
129//_____________________________________________________________________________
130AliTRDdigitizer::AliTRDdigitizer(AliRunDigitizer *manager
131 , const Text_t *name, const Text_t *title)
132 :AliDigitizer(manager,name,title)
133{
134 //
135 // AliTRDdigitizer constructor
f7336fa3 136 //
137
3551db50 138 Init();
3becff3c 139
bfc40adc 140}
141
142//_____________________________________________________________________________
143AliTRDdigitizer::AliTRDdigitizer(AliRunDigitizer *manager)
144 :AliDigitizer(manager,"AliTRDdigitizer","TRD digitizer")
145{
146 //
147 // AliTRDdigitizer constructor
148 //
149
3551db50 150 Init();
3becff3c 151
3551db50 152}
88cb7938 153
3551db50 154//_____________________________________________________________________________
155Bool_t AliTRDdigitizer::Init()
156{
3becff3c 157 //
158 // Initialize the digitizer with default values
159 //
160
85a5290f 161 fRunLoader = 0;
3551db50 162
163 //NewIO: These data members probably are not needed anymore
4487dad0 164 fDigitsManager = 0;
4487dad0 165 fSDigitsManager = 0;
85a5290f 166 fSDigitsManagerList = 0;
4487dad0 167 fTRD = 0;
168 fGeo = 0;
3551db50 169 //End NewIO comment
3becff3c 170
abaf1f1d 171 fEvent = 0;
85a5290f 172 fMasks = 0;
abaf1f1d 173 fCompress = kTRUE;
abaf1f1d 174 fSDigits = kFALSE;
3551db50 175 fSDigitsScale = 100.; // For the summable digits
4487dad0 176 fMergeSignalOnly = kFALSE;
3551db50 177
3becff3c 178 fTimeStructInfo.fLastVdrift = -1;
179 fTimeStructInfo.fTimeStruct1 = 0;
180 fTimeStructInfo.fTimeStruct2 = 0;
181 fTimeStructInfo.fVDlo = 0;
182 fTimeStructInfo.fVDhi = 0;
3551db50 183
3becff3c 184 fDiffusionInfo.fLastVdrift = -1;
185 fDiffusionInfo.fDiffusionT = 0.0;
186 fDiffusionInfo.fDiffusionL = 0.0;
3551db50 187 fDiffusionInfo.fLorentzFactor = 0.0;
793ff80c 188
3551db50 189 return AliDigitizer::Init();
3becff3c 190
f7336fa3 191}
192
8230f242 193//_____________________________________________________________________________
73ae7b59 194AliTRDdigitizer::AliTRDdigitizer(const AliTRDdigitizer &d):AliDigitizer(d)
8230f242 195{
196 //
197 // AliTRDdigitizer copy constructor
198 //
199
dd9a6ee3 200 ((AliTRDdigitizer &) d).Copy(*this);
8230f242 201
202}
203
f7336fa3 204//_____________________________________________________________________________
205AliTRDdigitizer::~AliTRDdigitizer()
206{
8230f242 207 //
208 // AliTRDdigitizer destructor
209 //
f7336fa3 210
abaf1f1d 211 if (fDigitsManager) {
212 delete fDigitsManager;
4487dad0 213 fDigitsManager = 0;
f7336fa3 214 }
215
47b5729a 216 fSDigitsManager = 0;
f7336fa3 217
abaf1f1d 218 if (fSDigitsManagerList) {
47b5729a 219 fSDigitsManagerList->Delete();
abaf1f1d 220 delete fSDigitsManagerList;
4487dad0 221 fSDigitsManagerList = 0;
e23fbb27 222 }
223
224 if (fMasks) {
225 delete [] fMasks;
226 fMasks = 0;
227 }
228
3551db50 229 if (fTimeStructInfo.fTimeStruct1)
230 {
231 delete [] fTimeStructInfo.fTimeStruct1;
232 fTimeStructInfo.fTimeStruct1 = 0;
233 }
234
235 if (fTimeStructInfo.fTimeStruct2)
236 {
237 delete [] fTimeStructInfo.fTimeStruct2;
238 fTimeStructInfo.fTimeStruct2 = 0;
239 }
3becff3c 240
f7336fa3 241}
242
8230f242 243//_____________________________________________________________________________
dd9a6ee3 244AliTRDdigitizer &AliTRDdigitizer::operator=(const AliTRDdigitizer &d)
245{
246 //
247 // Assignment operator
248 //
249
250 if (this != &d) ((AliTRDdigitizer &) d).Copy(*this);
251 return *this;
252
253}
254
255//_____________________________________________________________________________
e0d47c25 256void AliTRDdigitizer::Copy(TObject &d) const
8230f242 257{
258 //
259 // Copy function
260 //
261
85a5290f 262 ((AliTRDdigitizer &) d).fRunLoader = 0;
4487dad0 263 ((AliTRDdigitizer &) d).fDigitsManager = 0;
85a5290f 264 ((AliTRDdigitizer &) d).fSDigitsManager = 0;
265 ((AliTRDdigitizer &) d).fSDigitsManagerList = 0;
4487dad0 266 ((AliTRDdigitizer &) d).fTRD = 0;
267 ((AliTRDdigitizer &) d).fGeo = 0;
85a5290f 268 ((AliTRDdigitizer &) d).fEvent = 0;
269 ((AliTRDdigitizer &) d).fMasks = 0;
abaf1f1d 270 ((AliTRDdigitizer &) d).fCompress = fCompress;
abaf1f1d 271 ((AliTRDdigitizer &) d).fSDigits = fSDigits;
272 ((AliTRDdigitizer &) d).fSDigitsScale = fSDigitsScale;
4487dad0 273 ((AliTRDdigitizer &) d).fMergeSignalOnly = fMergeSignalOnly;
0c24ba98 274
3551db50 275 AliTRDdigitizer& target = (AliTRDdigitizer &) d;
276
277 target.fDiffusionInfo = fDiffusionInfo;
278
3becff3c 279 // Do not copy timestructs, just invalidate lastvdrift.
280 // Next time they are requested, they get recalculated
3551db50 281 if (target.fTimeStructInfo.fTimeStruct1)
282 {
283 delete[] target.fTimeStructInfo.fTimeStruct1;
284 target.fTimeStructInfo.fTimeStruct1 = 0;
285 }
286 if (target.fTimeStructInfo.fTimeStruct2)
287 {
288 delete[] target.fTimeStructInfo.fTimeStruct2;
289 target.fTimeStructInfo.fTimeStruct2 = 0;
3becff3c 290 }
3551db50 291 target.fTimeStructInfo.fLastVdrift = -1;
3becff3c 292
e23fbb27 293}
294
e23fbb27 295//_____________________________________________________________________________
296void AliTRDdigitizer::Exec(Option_t* option)
297{
298 //
299 // Executes the merging
300 //
301
302 Int_t iInput;
303
304 AliTRDdigitsManager *sdigitsManager;
305
306 TString optionString = option;
307 if (optionString.Contains("deb")) {
9afbd7de 308 AliLog::SetClassDebugLevel("AliTRDdigitizer",1);
309 AliInfo("Called with debug option\n");
e23fbb27 310 }
311
cec4059b 312 // The AliRoot file is already connected by the manager
88cb7938 313 AliRunLoader* inrl;
314
9afbd7de 315 if (gAlice) {
316 AliDebug(1,"AliRun object found on file.\n");
317 }
4487dad0 318 else {
88cb7938 319 inrl = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(0));
320 inrl->LoadgAlice();
321 gAlice = inrl->GetAliRun();
9afbd7de 322 if (!gAlice) {
323 AliError("Could not find AliRun object.\n")
324 return;
325 }
4487dad0 326 }
cec4059b 327
e23fbb27 328 Int_t nInput = fManager->GetNinputs();
329 fMasks = new Int_t[nInput];
330 for (iInput = 0; iInput < nInput; iInput++) {
331 fMasks[iInput] = fManager->GetMask(iInput);
332 }
e23fbb27 333
9afbd7de 334 //
e23fbb27 335 // Initialization
9afbd7de 336 //
e23fbb27 337
67c67368 338 AliRunLoader* orl = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName());
339 if (InitDetector()) {
9afbd7de 340
67c67368 341 AliLoader* ogime = orl->GetLoader("TRDLoader");
342
343 TTree* tree = 0;
9afbd7de 344 if (fSDigits) {
345 // If we produce SDigits
346 tree = ogime->TreeS();
347 if (!tree) {
348 ogime->MakeTree("S");
67c67368 349 tree = ogime->TreeS();
67c67368 350 }
9afbd7de 351 }
352 else {
353 // If we produce Digits
354 tree = ogime->TreeD();
355 if (!tree) {
356 ogime->MakeTree("D");
357 tree = ogime->TreeD();
67c67368 358 }
9afbd7de 359 }
360
67c67368 361 MakeBranch(tree);
9afbd7de 362
67c67368 363 }
364
e23fbb27 365 for (iInput = 0; iInput < nInput; iInput++) {
366
9afbd7de 367 AliDebug(1,Form("Add input stream %d\n",iInput));
e23fbb27 368
9afbd7de 369 // Check if the input tree exists
88cb7938 370 inrl = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(iInput));
371 AliLoader* gime = inrl->GetLoader("TRDLoader");
372
373 TTree * treees = gime->TreeS();
9afbd7de 374 if (treees == 0x0) {
375 if (gime->LoadSDigits()) {
376 AliError(Form("Error Occured while loading S. Digits for input %d.",iInput));
377 return;
378 }
88cb7938 379 treees = gime->TreeS();
9afbd7de 380 }
88cb7938 381
382 if (treees == 0x0) {
9afbd7de 383 AliError(Form("Input stream %d does not exist\n",iInput));
c57e2264 384 return;
385 }
386
e23fbb27 387 // Read the s-digits via digits manager
388 sdigitsManager = new AliTRDdigitsManager();
e23fbb27 389 sdigitsManager->SetSDigits(kTRUE);
88cb7938 390
391 AliRunLoader* rl = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(iInput));
392 AliLoader* gimme = rl->GetLoader("TRDLoader");
393 if (!gimme->TreeS()) gimme->LoadSDigits();
394 sdigitsManager->ReadDigits(gimme->TreeS());
e23fbb27 395
396 // Add the s-digits to the input list
397 AddSDigitsManager(sdigitsManager);
398
399 }
400
401 // Convert the s-digits to normal digits
9afbd7de 402 AliDebug(1,"Do the conversion\n");
e23fbb27 403 SDigits2Digits();
404
405 // Store the digits
9afbd7de 406 AliDebug(1,"Write the digits\n");
e23fbb27 407 fDigitsManager->WriteDigits();
88cb7938 408
9afbd7de 409 // Write parameters
67c67368 410 orl->CdGAFile();
67c67368 411
9afbd7de 412 AliDebug(1,"Done\n");
e23fbb27 413
b1113c6b 414 DeleteSDigitsManager();
415
e23fbb27 416}
417
f7336fa3 418//_____________________________________________________________________________
e23fbb27 419Bool_t AliTRDdigitizer::Open(const Char_t *file, Int_t nEvent)
f7336fa3 420{
421 //
422 // Opens a ROOT-file with TRD-hits and reads in the hit-tree
423 //
f7336fa3 424 // Connect the AliRoot file containing Geometry, Kine, and Hits
3becff3c 425 //
f540341d 426
e191bb57 427 TString evfoldname = AliConfig::GetDefaultEventFolderName();
9afbd7de 428
f540341d 429 fRunLoader = AliRunLoader::GetRunLoader(evfoldname);
9afbd7de 430 if (!fRunLoader) {
431 fRunLoader = AliRunLoader::Open(file,evfoldname,"UPDATE");
432 }
433
434 if (!fRunLoader) {
435 AliError(Form("Can not open session for file %s.",file));
88cb7938 436 return kFALSE;
437 }
438
9afbd7de 439 if (!fRunLoader->GetAliRun()) {
440 fRunLoader->LoadgAlice();
441 }
88cb7938 442 gAlice = fRunLoader->GetAliRun();
443
da581aea 444 if (gAlice) {
9afbd7de 445 AliDebug(1,"AliRun object found on file.\n");
da581aea 446 }
447 else {
9afbd7de 448 AliError("Could not find AliRun object.\n");
da581aea 449 return kFALSE;
450 }
f7336fa3 451
452 fEvent = nEvent;
453
454 // Import the Trees for the event nEvent in the file
88cb7938 455 fRunLoader->GetEvent(fEvent);
456
457 AliLoader* loader = fRunLoader->GetLoader("TRDLoader");
9afbd7de 458 if (!loader) {
459 AliError("Can not get TRD loader from Run Loader");
460 return kFALSE;
461 }
88cb7938 462
abaf1f1d 463 if (InitDetector()) {
88cb7938 464 TTree* tree = 0;
9afbd7de 465 if (fSDigits) {
466 // If we produce SDigits
467 tree = loader->TreeS();
468 if (!tree) {
469 loader->MakeTree("S");
470 tree = loader->TreeS();
471 }
472 }
473 else {
474 // If we produce Digits
475 if (!tree) {
476 loader->MakeTree("D");
477 tree = loader->TreeD();
478 }
479 }
88cb7938 480 return MakeBranch(tree);
abaf1f1d 481 }
482 else {
483 return kFALSE;
484 }
793ff80c 485
486}
487
488//_____________________________________________________________________________
489Bool_t AliTRDdigitizer::InitDetector()
490{
491 //
492 // Sets the pointer to the TRD detector and the geometry
493 //
494
dd9a6ee3 495 // Get the pointer to the detector class and check for version 1
4487dad0 496 fTRD = (AliTRD *) gAlice->GetDetector("TRD");
cec4059b 497 if (!fTRD) {
9afbd7de 498 AliFatal("No TRD module found\n");
cec4059b 499 exit(1);
500 }
dd9a6ee3 501 if (fTRD->IsVersion() != 1) {
9afbd7de 502 AliFatal("TRD must be version 1 (slow simulator)\n");
dd9a6ee3 503 exit(1);
504 }
505
506 // Get the geometry
507 fGeo = fTRD->GetGeometry();
9afbd7de 508 AliDebug(1,Form("Geometry version %d\n",fGeo->IsVersion()));
dd9a6ee3 509
abaf1f1d 510 // Create a digits manager
47b5729a 511 delete fDigitsManager;
abaf1f1d 512 fDigitsManager = new AliTRDdigitsManager();
513 fDigitsManager->SetSDigits(fSDigits);
514 fDigitsManager->CreateArrays();
515 fDigitsManager->SetEvent(fEvent);
abaf1f1d 516
517 // The list for the input s-digits manager to be merged
47b5729a 518 if (fSDigitsManagerList) {
519 fSDigitsManagerList->Delete();
3becff3c 520 }
521 else {
47b5729a 522 fSDigitsManagerList = new TList();
523 }
abaf1f1d 524
4487dad0 525 return kTRUE;
f7336fa3 526
527}
528
6244debe 529//_____________________________________________________________________________
88cb7938 530Bool_t AliTRDdigitizer::MakeBranch(TTree* tree) const
6244debe 531{
abaf1f1d 532 //
533 // Create the branches for the digits array
6244debe 534 //
535
88cb7938 536 return fDigitsManager->MakeBranch(tree);
6244debe 537
538}
539
f7336fa3 540//_____________________________________________________________________________
541Bool_t AliTRDdigitizer::MakeDigits()
542{
543 //
872a7aba 544 // Creates digits.
f7336fa3 545 //
546
f7336fa3 547 ///////////////////////////////////////////////////////////////
548 // Parameter
549 ///////////////////////////////////////////////////////////////
550
551 // Converts number of electrons to fC
872a7aba 552 const Double_t kEl2fC = 1.602E-19 * 1.0E15;
f7336fa3 553
554 ///////////////////////////////////////////////////////////////
555
793ff80c 556 // Number of pads included in the pad response
a5cadd36 557 const Int_t kNpad = 3;
793ff80c 558
559 // Number of track dictionary arrays
a5cadd36 560 const Int_t kNDict = AliTRDdigitsManager::kNDict;
793ff80c 561
872a7aba 562 // Half the width of the amplification region
563 const Float_t kAmWidth = AliTRDgeometry::AmThick() / 2.;
3becff3c 564 // Width of the drift region
ccb4315c 565 const Float_t kDrWidth = AliTRDgeometry::DrThick();
3551db50 566
a5cadd36 567 Int_t iRow, iCol, iTime, iPad;
568 Int_t iDict = 0;
569 Int_t nBytes = 0;
f7336fa3 570
a5cadd36 571 Int_t totalSizeDigits = 0;
572 Int_t totalSizeDict0 = 0;
573 Int_t totalSizeDict1 = 0;
574 Int_t totalSizeDict2 = 0;
f7336fa3 575
a5cadd36 576 Int_t timeBinTRFend = 1;
872a7aba 577
a5cadd36 578 Double_t pos[3];
579 Double_t rot[3];
580 Double_t xyz[3];
581 Double_t padSignal[kNpad];
582 Double_t signalOld[kNpad];
872a7aba 583
a5cadd36 584 AliTRDdataArrayF *signals = 0;
585 AliTRDdataArrayI *digits = 0;
8230f242 586 AliTRDdataArrayI *dictionary[kNDict];
da581aea 587
a5cadd36 588 AliTRDpadPlane *padPlane = 0;
589
9afbd7de 590 if (!gGeoManager) {
591 AliFatal("No geometry manager!");
592 }
7754cd1f 593
9afbd7de 594 AliTRDSimParam *simParam = AliTRDSimParam::Instance();
3becff3c 595 if (!simParam) {
9afbd7de 596 AliError("Could not get simulation parameters\n");
3551db50 597 return kFALSE;
598 }
599
9afbd7de 600 AliTRDCommonParam *commonParam = AliTRDCommonParam::Instance();
3becff3c 601 if (!commonParam) {
9afbd7de 602 AliError("Could not get common params\n");
3551db50 603 return kFALSE;
604 }
605
793ff80c 606 // Create a container for the amplitudes
9afbd7de 607 AliTRDsegmentArray *signalsArray = new AliTRDsegmentArray("AliTRDdataArrayF"
608 ,AliTRDgeometry::Ndet());
793ff80c 609
3551db50 610 AliTRDcalibDB* calibration = AliTRDcalibDB::Instance();
3becff3c 611 if (!calibration) {
9afbd7de 612 AliError("Could not get calibration object\n");
3551db50 613 return kFALSE;
614 }
615
616 if (simParam->TRFOn()) {
9afbd7de 617 timeBinTRFend = ((Int_t) (simParam->GetTRFhi()
618 * calibration->GetSamplingFrequency())) - 1;
619 AliDebug(1,Form("Sample the TRF up to bin %d\n",timeBinTRFend));
da581aea 620 }
621
3551db50 622 Float_t elAttachProp = simParam->GetElAttachProp() / 100.;
793ff80c 623
872a7aba 624 if (!fGeo) {
9afbd7de 625 AliError("No geometry defined\n");
872a7aba 626 return kFALSE;
627 }
628
9afbd7de 629 AliDebug(1,"Start creating digits.\n");
872a7aba 630
88cb7938 631 AliLoader* gimme = fRunLoader->GetLoader("TRDLoader");
9afbd7de 632 if (!gimme->TreeH()) {
633 gimme->LoadHits();
634 }
88cb7938 635 TTree* hitTree = gimme->TreeH();
3becff3c 636 if (hitTree == 0x0) {
9afbd7de 637 AliError("Can not get TreeH");
638 return kFALSE;
3becff3c 639 }
88cb7938 640 fTRD->SetTreeAddress();
641
793ff80c 642 // Get the number of entries in the hit tree
643 // (Number of primary particles creating a hit somewhere)
3becff3c 644 Int_t nTrack = (Int_t) hitTree->GetEntries();
9afbd7de 645 AliDebug(1,Form("Found %d primary particles\n",nTrack));
646 AliDebug(1,Form("Sampling = %.0fMHz\n" ,calibration->GetSamplingFrequency()));
647 AliDebug(1,Form("Gain = %d\n" ,((Int_t) simParam->GetGasGain())));
648 AliDebug(1,Form("Noise = %d\n" ,((Int_t) simParam->GetNoise())));
649 if (simParam->TimeStructOn()) {
650 AliDebug(1,"Time Structure of drift cells implemented.\n");
651 }
652 else {
653 AliDebug(1,"Constant drift velocity in drift cells.\n");
a328fff9 654 }
3551db50 655
9afbd7de 656 Int_t detectorOld = -1;
657 Int_t countHits = 0;
658
3becff3c 659 Int_t nTimeTotal = calibration->GetNumberOfTimeBins();
660 Float_t samplingRate = calibration->GetSamplingFrequency();
a328fff9 661
793ff80c 662 // Loop through all entries in the tree
663 for (Int_t iTrack = 0; iTrack < nTrack; iTrack++) {
664
3becff3c 665 gAlice->ResetHits();
666 nBytes += hitTree->GetEvent(iTrack);
793ff80c 667
e23fbb27 668 // Loop through the TRD hits
669 Int_t iHit = 0;
670 AliTRDhit *hit = (AliTRDhit *) fTRD->FirstHit(-1);
671 while (hit) {
672
793ff80c 673 countHits++;
e23fbb27 674 iHit++;
675
ccb4315c 676 pos[0] = hit->X();
677 pos[1] = hit->Y();
678 pos[2] = hit->Z();
679 Float_t q = hit->GetCharge();
680 Int_t track = hit->Track();
681 Int_t detector = hit->GetDetector();
682 Int_t plane = fGeo->GetPlane(detector);
683 Int_t sector = fGeo->GetSector(detector);
684 Int_t chamber = fGeo->GetChamber(detector);
3551db50 685 Float_t time0 = AliTRDgeometry::GetTime0(plane);
686
687 padPlane = commonParam->GetPadPlane(plane,chamber);
a5cadd36 688 Float_t row0 = padPlane->GetRow0();
a5cadd36 689 Int_t nRowMax = padPlane->GetNrows();
690 Int_t nColMax = padPlane->GetNcols();
3becff3c 691 Int_t inDrift = 1;
793ff80c 692
e23fbb27 693 // Don't analyze test hits and switched off detectors
694 if ((CheckDetector(plane,chamber,sector)) &&
695 (((Int_t) q) != 0)) {
dd56b762 696
e23fbb27 697 if (detector != detectorOld) {
e153aaf6 698
e23fbb27 699 // Compress the old one if enabled
700 if ((fCompress) && (detectorOld > -1)) {
9afbd7de 701 AliDebug(1,"Compress the old container ...");
e23fbb27 702 signals->Compress(1,0);
703 for (iDict = 0; iDict < kNDict; iDict++) {
704 dictionary[iDict]->Compress(1,0);
c1e4b257 705 }
793ff80c 706 }
e23fbb27 707 // Get the new container
708 signals = (AliTRDdataArrayF *) signalsArray->At(detector);
709 if (signals->GetNtime() == 0) {
710 // Allocate a new one if not yet existing
e23fbb27 711 signals->Allocate(nRowMax,nColMax,nTimeTotal);
793ff80c 712 }
713 else {
e23fbb27 714 // Expand an existing one
715 if (fCompress) {
e23fbb27 716 signals->Expand();
717 }
793ff80c 718 }
e23fbb27 719 // The same for the dictionary
3becff3c 720 for (iDict = 0; iDict < kNDict; iDict++) {
721 dictionary[iDict] = fDigitsManager->GetDictionary(detector,iDict);
722 if (dictionary[iDict]->GetNtime() == 0) {
723 dictionary[iDict]->Allocate(nRowMax,nColMax,nTimeTotal);
e23fbb27 724 }
3becff3c 725 else {
726 if (fCompress) dictionary[iDict]->Expand();
727 }
e23fbb27 728 }
e23fbb27 729 detectorOld = detector;
793ff80c 730 }
731
9afbd7de 732 // Rotate the sectors on top of each other
733 // by using the geoManager
734 Double_t aaa[3];
735 gGeoManager->MasterToLocal(pos,aaa);
736 if (inDrift) {
737 aaa[2] = time0 - (kDrWidth / 2.0 + kAmWidth) + aaa[2];
738 }
3becff3c 739 else {
9afbd7de 740 aaa[2] = time0 + aaa[2];
3becff3c 741 }
9afbd7de 742 aaa[1] = row0 + padPlane->GetLengthRim() + fGeo->RpadW()
743 - 0.5 * fGeo->GetChamberLength(plane,chamber)
744 + aaa[1];
745 rot[0] = aaa[2];
746 rot[1] = aaa[0];
747 rot[2] = aaa[1];
e23fbb27 748
ccb4315c 749 // The driftlength. It is negative if the hit is between pad plane and anode wires.
a5cadd36 750 Double_t driftlength = time0 - rot[0];
e23fbb27 751
e23fbb27 752 // Loop over all electrons of this hit
753 // TR photons produce hits with negative charge
754 Int_t nEl = ((Int_t) TMath::Abs(q));
755 for (Int_t iEl = 0; iEl < nEl; iEl++) {
756
757 xyz[0] = rot[0];
758 xyz[1] = rot[1];
759 xyz[2] = rot[2];
760
a328fff9 761 // Stupid patch to take care of TR photons that are absorbed
762 // outside the chamber volume. A real fix would actually need
763 // a more clever implementation of the TR hit generation
81a6930e 764 if (q < 0.0) {
a5cadd36 765 if ((xyz[2] < padPlane->GetRowEnd()) ||
766 (xyz[2] > padPlane->GetRow0())) {
81a6930e 767 if (iEl == 0) {
9afbd7de 768 AliDebug(2,Form("Hit outside of sensitive volume, row (z=%f, row0=%f, rowE=%f)\n"
769 ,xyz[2],padPlane->GetRow0(),padPlane->GetRowEnd()));
81a6930e 770 }
771 continue;
a328fff9 772 }
ccb4315c 773 Float_t tt = driftlength + kAmWidth;
774 if (tt < 0.0 || tt > kDrWidth + 2.*kAmWidth) {
81a6930e 775 if (iEl == 0) {
9afbd7de 776 AliDebug(2,Form("Hit outside of sensitive volume, time (Q = %d)\n"
777 ,((Int_t) q)));
81a6930e 778 }
779 continue;
a328fff9 780 }
a328fff9 781 }
782
3551db50 783 // Get row and col of unsmeared electron to retrieve drift velocity
e23fbb27 784 // The pad row (z-direction)
9afbd7de 785 Int_t rowE = padPlane->GetPadRowNumber(xyz[2]);
a5cadd36 786 if (rowE < 0) continue;
9afbd7de 787 Double_t rowOffset = padPlane->GetPadRowOffset(rowE,xyz[2]);
e23fbb27 788
789 // The pad column (rphi-direction)
9afbd7de 790 Double_t offsetTilt = padPlane->GetTiltOffset(rowOffset);
791 Int_t colE = padPlane->GetPadColNumber(xyz[1]+offsetTilt,rowOffset);
de4b10e5 792 if (colE < 0) continue;
9afbd7de 793 Double_t colOffset = padPlane->GetPadColOffset(colE,xyz[1]+offsetTilt);
ccb4315c 794
9afbd7de 795 Float_t driftvelocity = calibration->GetVdrift(detector,colE,rowE);
3551db50 796
797 // Normalised drift length
798 Double_t absdriftlength = TMath::Abs(driftlength);
9afbd7de 799 if (commonParam->ExBOn()) {
3551db50 800 absdriftlength /= TMath::Sqrt(GetLorentzFactor(driftvelocity));
9afbd7de 801 }
3551db50 802
803 // Electron attachment
804 if (simParam->ElAttachOn()) {
805 if (gRandom->Rndm() < (absdriftlength * elAttachProp)) continue;
806 }
807
808 // Apply the diffusion smearing
809 if (simParam->DiffusionOn()) {
810 if (!(Diffusion(driftvelocity, absdriftlength,xyz))) continue;
811 }
812
813 // Apply E x B effects (depends on drift direction)
814 if (commonParam->ExBOn()) {
815 if (!(ExB(driftvelocity, driftlength,xyz))) continue;
816 }
817
818 // The electron position after diffusion and ExB in pad coordinates.
819 // The pad row (z-direction)
e02e7d86 820 rowE = padPlane->GetPadRowNumber(xyz[2]);
3551db50 821 if (rowE < 0) continue;
e02e7d86 822 rowOffset = padPlane->GetPadRowOffset(rowE,xyz[2]);
3551db50 823
824 // The pad column (rphi-direction)
9afbd7de 825 offsetTilt = padPlane->GetTiltOffset(rowOffset);
e02e7d86 826 colE = padPlane->GetPadColNumber(xyz[1]+offsetTilt,rowOffset);
3551db50 827 if (colE < 0) continue;
e02e7d86 828 colOffset = padPlane->GetPadColOffset(colE,xyz[1]+offsetTilt);
3551db50 829
e02e7d86 830 // Also re-retrieve drift velocity because col and row may have changed
9afbd7de 831 driftvelocity = calibration->GetVdrift(detector,colE,rowE);
832 Float_t t0 = calibration->GetT0(detector,colE,rowE);
3551db50 833
834 // Convert the position to drift time, using either constant drift velocity or
ccb4315c 835 // time structure of drift cells (non-isochronity, GARFIELD calculation).
a5cadd36 836 Double_t drifttime;
3551db50 837 if (simParam->TimeStructOn()) {
ccb4315c 838 // Get z-position with respect to anode wire:
3551db50 839 Double_t Z = row0 - xyz[2] + simParam->GetAnodeWireOffset();
9afbd7de 840 Z -= ((Int_t)(2*Z))/2.0;
841 if (Z > 0.25) {
842 Z = 0.5 - Z;
843 }
844 // Use drift time map (GARFIELD)
845 drifttime = TimeStruct(driftvelocity,time0-xyz[0]+kAmWidth,Z);
a5cadd36 846 }
847 else {
ccb4315c 848 // use constant drift velocity
3551db50 849 drifttime = TMath::Abs(time0 - xyz[0]) / driftvelocity;
e23fbb27 850 }
ccb4315c 851
e23fbb27 852 // Apply the gas gain including fluctuations
a5cadd36 853 Double_t ggRndm = 0.0;
e23fbb27 854 do {
855 ggRndm = gRandom->Rndm();
856 } while (ggRndm <= 0);
3551db50 857 Int_t signal = (Int_t) (-(simParam->GetGasGain()) * TMath::Log(ggRndm));
e23fbb27 858
859 // Apply the pad response
cc7cef99 860 if (simParam->PRFOn()) {
e23fbb27 861 // The distance of the electron to the center of the pad
862 // in units of pad width
e02e7d86 863 Double_t dist = (colOffset - 0.5*padPlane->GetColSize(colE))
a5cadd36 864 / padPlane->GetColSize(colE);
6a739e92 865 if (!(calibration->PadResponse(signal,dist,plane,padSignal))) continue;
793ff80c 866 }
e23fbb27 867 else {
868 padSignal[0] = 0.0;
869 padSignal[1] = signal;
870 padSignal[2] = 0.0;
871 }
872
6a739e92 873 // The time bin (always positive), with t0 correction
874 Double_t timeBinIdeal = drifttime * samplingRate + t0;
9afbd7de 875 // Protection
a305677e 876 if (TMath::Abs(timeBinIdeal) > 2*nTimeTotal) {
877 timeBinIdeal = 2 * nTimeTotal;
878 }
6a739e92 879 Int_t timeBinTruncated = (Int_t) timeBinIdeal;
3551db50 880 // The distance of the position to the middle of the timebin
9afbd7de 881 Double_t timeOffset = ((Float_t) timeBinTruncated
882 + 0.5 - timeBinIdeal) / samplingRate;
6a739e92 883
e23fbb27 884 // Sample the time response inside the drift region
885 // + additional time bins before and after.
886 // The sampling is done always in the middle of the time bin
6a739e92 887 for (Int_t iTimeBin = TMath::Max(timeBinTruncated, 0);
888 iTimeBin < TMath::Min(timeBinTruncated+timeBinTRFend,nTimeTotal);
889 iTimeBin++) {
e23fbb27 890
891 // Apply the time response
a5cadd36 892 Double_t timeResponse = 1.0;
893 Double_t crossTalk = 0.0;
6a739e92 894 Double_t time = (iTimeBin - timeBinTruncated) / samplingRate + timeOffset;
3551db50 895 if (simParam->TRFOn()) {
896 timeResponse = simParam->TimeResponse(time);
897 }
898
899 if (simParam->CTOn()) {
900 crossTalk = simParam->CrossTalk(time);
e23fbb27 901 }
902
903 signalOld[0] = 0.0;
904 signalOld[1] = 0.0;
905 signalOld[2] = 0.0;
f7336fa3 906
e23fbb27 907 for (iPad = 0; iPad < kNpad; iPad++) {
908
909 Int_t colPos = colE + iPad - 1;
910 if (colPos < 0) continue;
911 if (colPos >= nColMax) break;
912
913 // Add the signals
dde59437 914 Int_t iCurrentTimeBin = iTimeBin;
e23fbb27 915 signalOld[iPad] = signals->GetDataUnchecked(rowE,colPos,iCurrentTimeBin);
916 if( colPos != colE ) {
917 signalOld[iPad] += padSignal[iPad] * (timeResponse + crossTalk);
918 }
919 else {
920 signalOld[iPad] += padSignal[iPad] * timeResponse;
921 }
922 signals->SetDataUnchecked(rowE,colPos,iCurrentTimeBin,signalOld[iPad]);
923
924 // Store the track index in the dictionary
925 // Note: We store index+1 in order to allow the array to be compressed
3becff3c 926 if (signalOld[iPad] > 0) {
e23fbb27 927 for (iDict = 0; iDict < kNDict; iDict++) {
928 Int_t oldTrack = dictionary[iDict]->GetDataUnchecked(rowE
929 ,colPos
930 ,iCurrentTimeBin);
931 if (oldTrack == track+1) break;
932 if (oldTrack == 0) {
933 dictionary[iDict]->SetDataUnchecked(rowE,colPos,iCurrentTimeBin,track+1);
934 break;
935 }
71d9fa7b 936 }
937 }
872a7aba 938
e23fbb27 939 } // Loop: pads
f7336fa3 940
e23fbb27 941 } // Loop: time bins
f7336fa3 942
e23fbb27 943 } // Loop: electrons of a single hit
f7336fa3 944
e23fbb27 945 } // If: detector and test hit
f7336fa3 946
e23fbb27 947 hit = (AliTRDhit *) fTRD->NextHit();
f7336fa3 948
e23fbb27 949 } // Loop: hits of one primary track
950
951 } // Loop: primary tracks
952
9afbd7de 953 AliDebug(1,Form("Finished analyzing %d hits\n",countHits));
793ff80c 954
0c24ba98 955 // The coupling factor
3551db50 956 Double_t coupling = simParam->GetPadCoupling()
9afbd7de 957 * simParam->GetTimeCoupling();
0c24ba98 958
959 // The conversion factor
9afbd7de 960 Double_t convert = kEl2fC
961 * simParam->GetChipGain();
6244debe 962
793ff80c 963 // Loop through all chambers to finalize the digits
0c24ba98 964 Int_t iDetBeg = 0;
965 Int_t iDetEnd = AliTRDgeometry::Ndet();
0c24ba98 966 for (Int_t iDet = iDetBeg; iDet < iDetEnd; iDet++) {
793ff80c 967
872a7aba 968 Int_t plane = fGeo->GetPlane(iDet);
969 Int_t sector = fGeo->GetSector(iDet);
970 Int_t chamber = fGeo->GetChamber(iDet);
3551db50 971 Int_t nRowMax = commonParam->GetRowMax(plane,chamber,sector);
972 Int_t nColMax = commonParam->GetColMax(plane);
793ff80c 973
9afbd7de 974 Double_t *inADC = new Double_t[nTimeTotal];
975 Double_t *outADC = new Double_t[nTimeTotal];
e23fbb27 976
9afbd7de 977 AliDebug(1,Form("Digitization for chamber %d\n",iDet));
da581aea 978
793ff80c 979 // Add a container for the digits of this detector
abaf1f1d 980 digits = fDigitsManager->GetDigits(iDet);
793ff80c 981 // Allocate memory space for the digits buffer
0c24ba98 982 if (digits->GetNtime() == 0) {
983 digits->Allocate(nRowMax,nColMax,nTimeTotal);
984 }
0c24ba98 985
793ff80c 986 // Get the signal container
987 signals = (AliTRDdataArrayF *) signalsArray->At(iDet);
988 if (signals->GetNtime() == 0) {
989 // Create missing containers
872a7aba 990 signals->Allocate(nRowMax,nColMax,nTimeTotal);
793ff80c 991 }
992 else {
993 // Expand the container if neccessary
994 if (fCompress) signals->Expand();
995 }
996 // Create the missing dictionary containers
3becff3c 997 for (iDict = 0; iDict < kNDict; iDict++) {
998 dictionary[iDict] = fDigitsManager->GetDictionary(iDet,iDict);
999 if (dictionary[iDict]->GetNtime() == 0) {
1000 dictionary[iDict]->Allocate(nRowMax,nColMax,nTimeTotal);
0c24ba98 1001 }
793ff80c 1002 }
f7336fa3 1003
793ff80c 1004 Int_t nDigits = 0;
1005
9afbd7de 1006 // Don't create noise in detectors that are switched off / not installed, etc.
1007 if ((CheckDetector(plane,chamber,sector)) &&
1008 (!calibration->GetChamberStatus(iDet))) {
6244debe 1009
1010 // Create the digits for this chamber
872a7aba 1011 for (iRow = 0; iRow < nRowMax; iRow++ ) {
1012 for (iCol = 0; iCol < nColMax; iCol++ ) {
6244debe 1013
9afbd7de 1014 // Check whether pad is active / installed / whatever ...
1015 if (calibration->GetPadStatus(iDet,iCol,iRow)) continue;
1016 // Check whether MCM is active / installed / whatever ...
1017 if (calibration->GetMCMStatus(iDet,iCol,iRow)) continue;
1018
e23fbb27 1019 // Create summable digits
1020 if (fSDigits) {
6244debe 1021
e23fbb27 1022 for (iTime = 0; iTime < nTimeTotal; iTime++) {
872a7aba 1023 Float_t signalAmp = signals->GetDataUnchecked(iRow,iCol,iTime);
abaf1f1d 1024 signalAmp *= fSDigitsScale;
e23fbb27 1025 signalAmp = TMath::Min(signalAmp,(Float_t) 1.0e9);
abaf1f1d 1026 Int_t adc = (Int_t) signalAmp;
4487dad0 1027 if (adc > 0) nDigits++;
872a7aba 1028 digits->SetDataUnchecked(iRow,iCol,iTime,adc);
c1e4b257 1029 }
6244debe 1030
e23fbb27 1031 }
1032 // Create normal digits
1033 else {
6244debe 1034
e23fbb27 1035 for (iTime = 0; iTime < nTimeTotal; iTime++) {
1036 Float_t signalAmp = signals->GetDataUnchecked(iRow,iCol,iTime);
11dc3a9e 1037
0c24ba98 1038 // Pad and time coupling
1039 signalAmp *= coupling;
11dc3a9e 1040
1041 Float_t padgain = calibration->GetGainFactor(iDet, iCol, iRow);
9afbd7de 1042 if (padgain <= 0) {
1043 AliError(Form("Not a valid gain %f, %d %d %d\n", padgain, iDet, iCol, iRow));
7754cd1f 1044 }
7eea788e 1045 signalAmp *= padgain;
11dc3a9e 1046
7e582e9f 1047 // Add the noise, starting from minus ADC baseline in electrons
3551db50 1048 Double_t baselineEl = simParam->GetADCbaseline() * (simParam->GetADCinRange()
11dc3a9e 1049 / simParam->GetADCoutRange())
7e582e9f 1050 / convert;
3551db50 1051 signalAmp = TMath::Max((Double_t) gRandom->Gaus(signalAmp,simParam->GetNoise())
7e582e9f 1052 ,-baselineEl);
6244debe 1053 // Convert to mV
1054 signalAmp *= convert;
7e582e9f 1055 // Add ADC baseline in mV
3551db50 1056 signalAmp += simParam->GetADCbaseline() * (simParam->GetADCinRange()
1057 / simParam->GetADCoutRange());
11dc3a9e 1058 // Convert to ADC counts. Set the overflow-bit fADCoutRange if the
6244debe 1059 // signal is larger than fADCinRange
1060 Int_t adc = 0;
3551db50 1061 if (signalAmp >= simParam->GetADCinRange()) {
1062 adc = ((Int_t) simParam->GetADCoutRange());
6244debe 1063 }
1064 else {
11dc3a9e 1065 adc = TMath::Nint(signalAmp * (simParam->GetADCoutRange()
1066 / simParam->GetADCinRange()));
6244debe 1067 }
11dc3a9e 1068
e23fbb27 1069 inADC[iTime] = adc;
1070 outADC[iTime] = adc;
1071 }
6244debe 1072
e23fbb27 1073 for (iTime = 0; iTime < nTimeTotal; iTime++) {
6244debe 1074 // Store the amplitude of the digit if above threshold
3551db50 1075 if (outADC[iTime] > simParam->GetADCthreshold()) {
6244debe 1076 nDigits++;
3583ac1a 1077 digits->SetDataUnchecked(iRow,iCol,iTime,((Int_t) outADC[iTime]));
6244debe 1078 }
6244debe 1079 }
1080
1081 }
e23fbb27 1082
6244debe 1083 }
793ff80c 1084 }
6244debe 1085
793ff80c 1086 }
1087
1088 // Compress the arrays
3becff3c 1089 digits->Compress(1,0);
1090 for (iDict = 0; iDict < kNDict; iDict++) {
1091 dictionary[iDict]->Compress(1,0);
1092 }
f7336fa3 1093
3becff3c 1094 totalSizeDigits += digits->GetSize();
1095 totalSizeDict0 += dictionary[0]->GetSize();
1096 totalSizeDict1 += dictionary[1]->GetSize();
1097 totalSizeDict2 += dictionary[2]->GetSize();
0c24ba98 1098
3becff3c 1099 Float_t nPixel = nRowMax * nColMax * nTimeTotal;
9afbd7de 1100 AliDebug(1,Form("Found %d digits in detector %d (%3.0f).\n"
1101 ,nDigits,iDet
1102 ,100.0 * ((Float_t) nDigits) / nPixel));
abaf1f1d 1103
9afbd7de 1104 if (fCompress) {
1105 signals->Compress(1,0);
1106 }
f7336fa3 1107
e23fbb27 1108 delete [] inADC;
1109 delete [] outADC;
1110
f7336fa3 1111 }
1112
0c24ba98 1113 if (signalsArray) {
1114 delete signalsArray;
1115 signalsArray = 0;
1116 }
1117
9afbd7de 1118 AliDebug(1,Form("Total number of analyzed hits = %d\n",countHits));
1119 AliDebug(1,Form("Total digits data size = %d, %d, %d, %d\n",totalSizeDigits
1120 ,totalSizeDict0
1121 ,totalSizeDict1
1122 ,totalSizeDict2));
abaf1f1d 1123
1124 return kTRUE;
1125
1126}
1127
1128//_____________________________________________________________________________
1129void AliTRDdigitizer::AddSDigitsManager(AliTRDdigitsManager *man)
1130{
1131 //
1132 // Add a digits manager for s-digits to the input list.
1133 //
1134
1135 fSDigitsManagerList->Add(man);
1136
1137}
1138
b1113c6b 1139//_____________________________________________________________________________
1140void AliTRDdigitizer::DeleteSDigitsManager()
1141{
1142 //
1143 // Removes digits manager from the input list.
1144 //
1145
1146 fSDigitsManagerList->Delete();
1147
1148}
1149
abaf1f1d 1150//_____________________________________________________________________________
1151Bool_t AliTRDdigitizer::ConvertSDigits()
1152{
1153 //
1154 // Converts s-digits to normal digits
1155 //
1156
1157 // Number of track dictionary arrays
1158 const Int_t kNDict = AliTRDdigitsManager::kNDict;
1159
1160 // Converts number of electrons to fC
1161 const Double_t kEl2fC = 1.602E-19 * 1.0E15;
1162
1163 Int_t iDict = 0;
e23fbb27 1164 Int_t iRow;
1165 Int_t iCol;
1166 Int_t iTime;
abaf1f1d 1167
3551db50 1168 AliTRDSimParam* simParam = AliTRDSimParam::Instance();
9afbd7de 1169 if (!simParam) {
1170 AliError("Could not get simulation parameters\n");
3551db50 1171 return kFALSE;
1172 }
1173
1174 AliTRDCommonParam* commonParam = AliTRDCommonParam::Instance();
9afbd7de 1175 if (!commonParam) {
1176 AliError("Could not get common parameters\n");
3551db50 1177 return kFALSE;
1178 }
1179
3551db50 1180 AliTRDcalibDB* calibration = AliTRDcalibDB::Instance();
9afbd7de 1181 if (!calibration) {
1182 AliError("Could not get calibration object\n");
3551db50 1183 return kFALSE;
1184 }
1185
abaf1f1d 1186 Double_t sDigitsScale = 1.0 / GetSDigitsScale();
3551db50 1187 Double_t noise = simParam->GetNoise();
1188 Double_t padCoupling = simParam->GetPadCoupling();
1189 Double_t timeCoupling = simParam->GetTimeCoupling();
1190 Double_t chipGain = simParam->GetChipGain();
0c24ba98 1191 Double_t coupling = padCoupling * timeCoupling;
1192 Double_t convert = kEl2fC * chipGain;
3551db50 1193 Double_t adcInRange = simParam->GetADCinRange();
1194 Double_t adcOutRange = simParam->GetADCoutRange();
1195 Int_t adcThreshold = simParam->GetADCthreshold();
1196 Int_t adcBaseline = simParam->GetADCbaseline();
abaf1f1d 1197
9afbd7de 1198 Int_t nTimeTotal = calibration->GetNumberOfTimeBins();
1199
abaf1f1d 1200 AliTRDdataArrayI *digitsIn;
1201 AliTRDdataArrayI *digitsOut;
1202 AliTRDdataArrayI *dictionaryIn[kNDict];
1203 AliTRDdataArrayI *dictionaryOut[kNDict];
3551db50 1204
abaf1f1d 1205 // Loop through the detectors
1206 for (Int_t iDet = 0; iDet < AliTRDgeometry::Ndet(); iDet++) {
da581aea 1207
9afbd7de 1208 AliDebug(1,Form("Convert detector %d to digits.\n",iDet));
abaf1f1d 1209
1210 Int_t plane = fGeo->GetPlane(iDet);
1211 Int_t sector = fGeo->GetSector(iDet);
1212 Int_t chamber = fGeo->GetChamber(iDet);
3551db50 1213 Int_t nRowMax = commonParam->GetRowMax(plane,chamber,sector);
1214 Int_t nColMax = commonParam->GetColMax(plane);
abaf1f1d 1215
e23fbb27 1216 Double_t *inADC = new Double_t[nTimeTotal];
1217 Double_t *outADC = new Double_t[nTimeTotal];
1218
abaf1f1d 1219 digitsIn = fSDigitsManager->GetDigits(iDet);
1220 digitsIn->Expand();
1221 digitsOut = fDigitsManager->GetDigits(iDet);
1222 digitsOut->Allocate(nRowMax,nColMax,nTimeTotal);
1223 for (iDict = 0; iDict < kNDict; iDict++) {
1224 dictionaryIn[iDict] = fSDigitsManager->GetDictionary(iDet,iDict);
1225 dictionaryIn[iDict]->Expand();
1226 dictionaryOut[iDict] = fDigitsManager->GetDictionary(iDet,iDict);
1227 dictionaryOut[iDict]->Allocate(nRowMax,nColMax,nTimeTotal);
1228 }
1229
e23fbb27 1230 for (iRow = 0; iRow < nRowMax; iRow++ ) {
1231 for (iCol = 0; iCol < nColMax; iCol++ ) {
abaf1f1d 1232
11dc3a9e 1233 for (iTime = 0; iTime < nTimeTotal; iTime++) {
9afbd7de 1234
abaf1f1d 1235 Double_t signal = (Double_t) digitsIn->GetDataUnchecked(iRow,iCol,iTime);
1236 signal *= sDigitsScale;
9afbd7de 1237 Float_t padgain = calibration->GetGainFactor(iDet,iCol,iRow);
1238 if (padgain <= 0.0) {
1239 AliError(Form("Not a valid gain %f, %d %d %d\n", padgain, iDet, iCol, iRow));
7754cd1f 1240 }
11dc3a9e 1241
7754cd1f 1242 signal *= padgain;
0c24ba98 1243 // Pad and time coupling
1244 signal *= coupling;
7e582e9f 1245 // Add the noise, starting from minus ADC baseline in electrons
1246 Double_t baselineEl = adcBaseline * (adcInRange / adcOutRange) / convert;
1247 signal = TMath::Max((Double_t) gRandom->Gaus(signal,noise),-baselineEl);
abaf1f1d 1248 // Convert to mV
1249 signal *= convert;
7e582e9f 1250 // add ADC baseline in mV
1251 signal += adcBaseline * (adcInRange / adcOutRange);
11dc3a9e 1252 // Convert to ADC counts. Set the overflow-bit adcOutRange if the
abaf1f1d 1253 // signal is larger than adcInRange
1254 Int_t adc = 0;
1255 if (signal >= adcInRange) {
1256 adc = ((Int_t) adcOutRange);
1257 }
1258 else {
11dc3a9e 1259 adc = TMath::Nint(signal * (adcOutRange / adcInRange));
abaf1f1d 1260 }
e23fbb27 1261 inADC[iTime] = adc;
1262 outADC[iTime] = adc;
9afbd7de 1263
e23fbb27 1264 }
1265
11dc3a9e 1266 for (iTime = 0; iTime < nTimeTotal; iTime++) {
abaf1f1d 1267 // Store the amplitude of the digit if above threshold
e23fbb27 1268 if (outADC[iTime] > adcThreshold) {
3583ac1a 1269 digitsOut->SetDataUnchecked(iRow,iCol,iTime,((Int_t) outADC[iTime]));
e23fbb27 1270 // Copy the dictionary
1271 for (iDict = 0; iDict < kNDict; iDict++) {
1272 Int_t track = dictionaryIn[iDict]->GetDataUnchecked(iRow,iCol,iTime);
1273 dictionaryOut[iDict]->SetDataUnchecked(iRow,iCol,iTime,track);
1274 }
abaf1f1d 1275 }
abaf1f1d 1276 }
e23fbb27 1277
abaf1f1d 1278 }
1279 }
1280
1281 if (fCompress) {
1282 digitsIn->Compress(1,0);
1283 digitsOut->Compress(1,0);
1284 for (iDict = 0; iDict < kNDict; iDict++) {
1285 dictionaryIn[iDict]->Compress(1,0);
1286 dictionaryOut[iDict]->Compress(1,0);
1287 }
1288 }
1289
e23fbb27 1290 delete [] inADC;
1291 delete [] outADC;
1292
abaf1f1d 1293 }
f7336fa3 1294
1295 return kTRUE;
1296
1297}
1298
16bf9884 1299//_____________________________________________________________________________
abaf1f1d 1300Bool_t AliTRDdigitizer::MergeSDigits()
16bf9884 1301{
1302 //
abaf1f1d 1303 // Merges the input s-digits:
1304 // - The amplitude of the different inputs are summed up.
1305 // - Of the track IDs from the input dictionaries only one is
1306 // kept for each input. This works for maximal 3 different merged inputs.
16bf9884 1307 //
1308
abaf1f1d 1309 // Number of track dictionary arrays
1310 const Int_t kNDict = AliTRDdigitsManager::kNDict;
1311
9afbd7de 1312 AliTRDSimParam* simParam = AliTRDSimParam::Instance();
1313 if (!simParam) {
1314 AliError("Could not get simulation parameters\n");
3551db50 1315 return kFALSE;
1316 }
1317
1318 AliTRDCommonParam* commonParam = AliTRDCommonParam::Instance();
9afbd7de 1319 if (!commonParam) {
1320 AliError("Could not get common parameters\n");
3551db50 1321 return kFALSE;
1322 }
1323
9afbd7de 1324 AliTRDcalibDB* calibration = AliTRDcalibDB::Instance();
1325 if (!calibration) {
1326 AliError("Could not get calibration object\n");
3551db50 1327 return kFALSE;
1328 }
1329
abaf1f1d 1330 Int_t iDict = 0;
e23fbb27 1331 Int_t jDict = 0;
abaf1f1d 1332
1333 AliTRDdataArrayI *digitsA;
1334 AliTRDdataArrayI *digitsB;
1335 AliTRDdataArrayI *dictionaryA[kNDict];
1336 AliTRDdataArrayI *dictionaryB[kNDict];
1337
1338 // Get the first s-digits
1339 fSDigitsManager = (AliTRDdigitsManager *) fSDigitsManagerList->First();
9afbd7de 1340 if (!fSDigitsManager) {
1341 AliError("No SDigits manager\n");
1342 return kFALSE;
1343 }
abaf1f1d 1344
1345 // Loop through the other sets of s-digits
1346 AliTRDdigitsManager *mergeSDigitsManager;
9afbd7de 1347 mergeSDigitsManager = (AliTRDdigitsManager *) fSDigitsManagerList->After(fSDigitsManager);
abaf1f1d 1348
9afbd7de 1349 if (mergeSDigitsManager) {
1350 AliDebug(1,Form("Merge %d input files.\n",fSDigitsManagerList->GetSize()));
1351 }
1352 else {
1353 AliDebug(1,"Only one input file.\n");
abaf1f1d 1354 }
1355
3551db50 1356 Int_t nTimeTotal = calibration->GetNumberOfTimeBins();
1357
abaf1f1d 1358 Int_t iMerge = 0;
1359 while (mergeSDigitsManager) {
1360
1361 iMerge++;
1362
1363 // Loop through the detectors
1364 for (Int_t iDet = 0; iDet < AliTRDgeometry::Ndet(); iDet++) {
1365
1366 Int_t plane = fGeo->GetPlane(iDet);
1367 Int_t sector = fGeo->GetSector(iDet);
1368 Int_t chamber = fGeo->GetChamber(iDet);
3551db50 1369 Int_t nRowMax = commonParam->GetRowMax(plane,chamber,sector);
1370 Int_t nColMax = commonParam->GetColMax(plane);
abaf1f1d 1371
1372 // Loop through the pixels of one detector and add the signals
1373 digitsA = fSDigitsManager->GetDigits(iDet);
1374 digitsB = mergeSDigitsManager->GetDigits(iDet);
1375 digitsA->Expand();
1376 digitsB->Expand();
1377 for (iDict = 0; iDict < kNDict; iDict++) {
1378 dictionaryA[iDict] = fSDigitsManager->GetDictionary(iDet,iDict);
1379 dictionaryB[iDict] = mergeSDigitsManager->GetDictionary(iDet,iDict);
1380 dictionaryA[iDict]->Expand();
1381 dictionaryB[iDict]->Expand();
1382 }
1383
4487dad0 1384 // Merge only detectors that contain a signal
1385 Bool_t doMerge = kTRUE;
1386 if (fMergeSignalOnly) {
1387 if (digitsA->GetOverThreshold(0) == 0) {
1388 doMerge = kFALSE;
1389 }
abaf1f1d 1390 }
1391
4487dad0 1392 if (doMerge) {
abaf1f1d 1393
9afbd7de 1394 AliDebug(1,Form("Merge detector %d of input no.%d\n",iDet,iMerge+1));
abaf1f1d 1395
4487dad0 1396 for (Int_t iRow = 0; iRow < nRowMax; iRow++ ) {
1397 for (Int_t iCol = 0; iCol < nColMax; iCol++ ) {
1398 for (Int_t iTime = 0; iTime < nTimeTotal; iTime++) {
1399
1400 // Add the amplitudes of the summable digits
1401 Int_t ampA = digitsA->GetDataUnchecked(iRow,iCol,iTime);
1402 Int_t ampB = digitsB->GetDataUnchecked(iRow,iCol,iTime);
1403 ampA += ampB;
1404 digitsA->SetDataUnchecked(iRow,iCol,iTime,ampA);
1405
9afbd7de 1406 // Add the mask to the track id if defined.
4487dad0 1407 for (iDict = 0; iDict < kNDict; iDict++) {
1408 Int_t trackB = dictionaryB[iDict]->GetDataUnchecked(iRow,iCol,iTime);
1409 if ((fMasks) && (trackB > 0)) {
1410 for (jDict = 0; jDict < kNDict; jDict++) {
1411 Int_t trackA = dictionaryA[iDict]->GetDataUnchecked(iRow,iCol,iTime);
1412 if (trackA == 0) {
1413 trackA = trackB + fMasks[iMerge];
1414 dictionaryA[iDict]->SetDataUnchecked(iRow,iCol,iTime,trackA);
1415 }
1416 }
1417 }
e23fbb27 1418 }
abaf1f1d 1419
4487dad0 1420 }
abaf1f1d 1421 }
4487dad0 1422 }
1423
abaf1f1d 1424 }
1425
1426 if (fCompress) {
1427 digitsA->Compress(1,0);
1428 digitsB->Compress(1,0);
1429 for (iDict = 0; iDict < kNDict; iDict++) {
1430 dictionaryA[iDict]->Compress(1,0);
1431 dictionaryB[iDict]->Compress(1,0);
1432 }
1433 }
1434
1435 }
1436
1437 // The next set of s-digits
9afbd7de 1438 mergeSDigitsManager = (AliTRDdigitsManager *) fSDigitsManagerList->After(mergeSDigitsManager);
abaf1f1d 1439
1440 }
1441
16bf9884 1442 return kTRUE;
1443
1444}
1445
abaf1f1d 1446//_____________________________________________________________________________
1447Bool_t AliTRDdigitizer::SDigits2Digits()
1448{
1449 //
1450 // Merges the input s-digits and converts them to normal digits
1451 //
1452
1453 if (!MergeSDigits()) return kFALSE;
1454
1455 return ConvertSDigits();
1456
1457}
1458
793ff80c 1459//_____________________________________________________________________________
1460Bool_t AliTRDdigitizer::CheckDetector(Int_t plane, Int_t chamber, Int_t sector)
1461{
1462 //
1463 // Checks whether a detector is enabled
1464 //
1465
1466 if ((fTRD->GetSensChamber() >= 0) &&
1467 (fTRD->GetSensChamber() != chamber)) return kFALSE;
1468 if ((fTRD->GetSensPlane() >= 0) &&
c1e4b257 1469 (fTRD->GetSensPlane() != plane)) return kFALSE;
793ff80c 1470 if ( fTRD->GetSensSector() >= 0) {
1471 Int_t sens1 = fTRD->GetSensSector();
1472 Int_t sens2 = sens1 + fTRD->GetSensSectorRange();
1473 sens2 -= ((Int_t) (sens2 / AliTRDgeometry::Nsect()))
1474 * AliTRDgeometry::Nsect();
1475 if (sens1 < sens2) {
1476 if ((sector < sens1) || (sector >= sens2)) return kFALSE;
1477 }
1478 else {
1479 if ((sector < sens1) && (sector >= sens2)) return kFALSE;
1480 }
1481 }
1482
1483 return kTRUE;
1484
1485}
1486
f7336fa3 1487//_____________________________________________________________________________
0a29d0f1 1488Bool_t AliTRDdigitizer::WriteDigits() const
f7336fa3 1489{
1490 //
1491 // Writes out the TRD-digits and the dictionaries
1492 //
1493
bdbb05bb 1494 //Write parameters
1495 fRunLoader->CdGAFile();
bdbb05bb 1496
da581aea 1497 // Store the digits and the dictionary in the tree
abaf1f1d 1498 return fDigitsManager->WriteDigits();
f7336fa3 1499
1500}
793ff80c 1501
8e64dd77 1502//_____________________________________________________________________________
88cb7938 1503void AliTRDdigitizer::InitOutput(Int_t iEvent)
8e64dd77 1504{
1505 //
1506 // Initializes the output branches
1507 //
1508
1509 fEvent = iEvent;
88cb7938 1510
9afbd7de 1511 if (!fRunLoader) {
1512 AliError("Run Loader is NULL");
1513 return;
1514 }
1515
88cb7938 1516 AliLoader* loader = fRunLoader->GetLoader("TRDLoader");
9afbd7de 1517 if (!loader) {
1518 AliError("Can not get TRD loader from Run Loader");
1519 return;
1520 }
88cb7938 1521
1522 TTree* tree = 0;
1523
9afbd7de 1524 if (fSDigits) {
1525 // If we produce SDigits
88cb7938 1526 tree = loader->TreeS();
9afbd7de 1527 if (!tree) {
88cb7938 1528 loader->MakeTree("S");
1529 tree = loader->TreeS();
9afbd7de 1530 }
1531 }
1532 else {
1533 // If we produce Digits
1534 tree = loader->TreeD();
1535 if (!tree) {
1536 loader->MakeTree("D");
1537 tree = loader->TreeD();
1538 }
1539 }
1540
88cb7938 1541 fDigitsManager->SetEvent(iEvent);
1542 fDigitsManager->MakeBranch(tree);
8e64dd77 1543
1544}
3551db50 1545
1546//_____________________________________________________________________________
1547Double_t AliTRDdigitizer::TimeStruct(Float_t vdrift, Double_t dist, Double_t z)
1548{
1549 //
1550 // Applies the time structure of the drift cells (by C.Lippmann).
1551 // The drift time of electrons to the anode wires depends on the
1552 // distance to the wire (z) and on the position in the drift region.
1553 //
1554 // input :
1555 // dist = radial distance from (cathode) pad plane [cm]
1556 // z = distance from anode wire (parallel to cathode planes) [cm]
1557 //
1558 // output :
1559 // tdrift = the drift time of an electron at the given position
1560 //
1561 // We interpolate between the drift time values at the two drift
1562 // velocities fVDlo and fVDhi, being smaller and larger than
1563 // fDriftVelocity. We use the two stored drift time maps fTimeStruct1
1564 // and fTimeStruct2, calculated for the two mentioned drift velocities.
1565 //
1566
1567 SampleTimeStruct(vdrift);
1568
1569 // indices:
1570 Int_t r1 = (Int_t)(10*dist);
9afbd7de 1571 if (r1 < 0) r1 = 0;
1572 if (r1 > 37) r1 = 37;
1573 Int_t r2 = r1 + 1;
1574 if (r2 < 0) r2 = 0;
1575 if (r2 > 37) r2 = 37;
1576 const Int_t kz1 = ((Int_t)(100 * z / 2.5));
1577 const Int_t kz2 = kz1 + 1;
1578
1579 if ((r1 < 0) || (r1 > 37) || (kz1 < 0) || (kz1 > 10)) {
1580 AliWarning(Form("Indices out of range: dist=%.2f, z=%.2f, r1=%d, kz1=%d\n"
1581 ,dist,z,r1,kz1));
3551db50 1582 }
1583
1584 const Float_t ky111 = fTimeStructInfo.fTimeStruct1[r1+38*kz1];
9afbd7de 1585 const Float_t ky221 = ((r2 <= 37) && (kz2 <= 10))
1586 ? fTimeStructInfo.fTimeStruct1[r2+38*kz2]
1587 : fTimeStructInfo.fTimeStruct1[37+38*10];
1588 const Float_t ky121 = (kz2 <= 10)
1589 ? fTimeStructInfo.fTimeStruct1[r1+38*kz2]
1590 : fTimeStructInfo.fTimeStruct1[r1+38*10];
1591 const Float_t ky211 = (r2 <= 37)
1592 ? fTimeStructInfo.fTimeStruct1[r2+38*kz1]
1593 : fTimeStructInfo.fTimeStruct1[37+38*kz1];
3551db50 1594
1595 // 2D Interpolation, lower drift time map
1596 const Float_t ky11 = (ky211-ky111)*10*dist + ky111 - (ky211-ky111)*r1;
1597 const Float_t ky21 = (ky221-ky121)*10*dist + ky121 - (ky221-ky121)*r1;
1598
1599 const Float_t ky112 = fTimeStructInfo.fTimeStruct2[r1+38*kz1];
9afbd7de 1600 const Float_t ky222 = ((r2 <= 37) && (kz2 <= 10))
1601 ? fTimeStructInfo.fTimeStruct2[r2+38*kz2]
1602 : fTimeStructInfo.fTimeStruct2[37+38*10];
1603 const Float_t ky122 = (kz2 <= 10)
1604 ? fTimeStructInfo.fTimeStruct2[r1+38*kz2]
1605 : fTimeStructInfo.fTimeStruct2[r1+38*10];
1606 const Float_t ky212 = (r2 <= 37)
1607 ? fTimeStructInfo.fTimeStruct2[r2+38*kz1]
1608 : fTimeStructInfo.fTimeStruct2[37+38*kz1];
3551db50 1609
1610 // 2D Interpolation, larger drift time map
1611 const Float_t ky12 = (ky212-ky112)*10*dist + ky112 - (ky212-ky112)*r1;
1612 const Float_t ky22 = (ky222-ky122)*10*dist + ky122 - (ky222-ky122)*r1;
1613
1614 // dist now is the drift distance to the anode wires (negative if electrons are
1615 // between anode wire plane and cathode pad plane)
9afbd7de 1616 dist -= AliTRDgeometry::AmThick() / 2.0;
3551db50 1617
1618 // Get the drift times for the drift velocities fVDlo and fVDhi
9afbd7de 1619 const Float_t ktdrift1 = ((TMath::Abs(dist) > 0.005) || (z > 0.005))
1620 ? (ky21 - ky11) * 100 * z / 2.5 + ky11 - (ky21 - ky11) * kz1
1621 : 0.0;
1622 const Float_t ktdrift2 = ((TMath::Abs(dist) > 0.005) || (z > 0.005))
1623 ? (ky22 - ky12) * 100 * z / 2.5 + ky12 - (ky22 - ky12) * kz1
1624 : 0.0;
3551db50 1625
1626 // 1D Interpolation between the values at fVDlo and fVDhi
1627 Float_t a = (ktdrift2 - ktdrift1) / (fTimeStructInfo.fVDhi - fTimeStructInfo.fVDlo);
1628 Float_t b = ktdrift2 - a * fTimeStructInfo.fVDhi;
1629
3551db50 1630 return a * vdrift + b;
1631
1632}
1633
1634//_____________________________________________________________________________
1635void AliTRDdigitizer::SampleTimeStruct(Float_t vdrift)
1636{
1637 //
1638 // Samples the timing structure of a drift cell
1639 // Drift Time data calculated with Garfield (by C.Lippmann)
1640 //
1641
9afbd7de 1642 // TODO make caching proper, if same timing structure is selected: do not update timestructs!
3551db50 1643
9afbd7de 1644 // Noting to do
1645 if (vdrift == fTimeStructInfo.fLastVdrift) {
3551db50 1646 return;
9afbd7de 1647 }
3551db50 1648
1649 fTimeStructInfo.fLastVdrift = vdrift;
1650
9afbd7de 1651 // Drift time maps are saved for some drift velocity values (in drift region):
3551db50 1652 Float_t fVDsmp[8];
1653 fVDsmp[0] = 1.032;
1654 fVDsmp[1] = 1.158;
1655 fVDsmp[2] = 1.299;
1656 fVDsmp[3] = 1.450;
1657 fVDsmp[4] = 1.610;
1658 fVDsmp[5] = 1.783;
1659 fVDsmp[6] = 1.959;
1660 fVDsmp[7] = 2.134;
1661
9afbd7de 1662 if (vdrift < fVDsmp[0]) {
1663 AliWarning(Form("Drift Velocity too small (%.3f<%.3f)\n",vdrift,fVDsmp[0]));
3551db50 1664 vdrift = fVDsmp[0];
9afbd7de 1665 }
1666 else if (vdrift > fVDsmp[7]) {
1667 AliWarning(Form("Drift Velocity too large (%.3f>%.3f)\n",vdrift,fVDsmp[6]));
3551db50 1668 vdrift = fVDsmp[7];
1669 }
1670
1671 const Int_t ktimebin = 38;
9afbd7de 1672 const Int_t kZbin = 11;
3551db50 1673
1674 // Garfield simulation at UD = -1500V; vd = 1.032cm/microsec, <driftfield> = 525V/cm
1675 Float_t time1500[ktimebin][kZbin] =
1676 {{0.09170, 0.09205, 0.09306, 0.09475, 0.09716, 0.10035,
1677 0.10445, 0.10993, 0.11838, 0.13986, 0.37858},
1678 {0.06588, 0.06626, 0.06739, 0.06926, 0.07186, 0.07524,
1679 0.07951, 0.08515, 0.09381, 0.11601, 0.35673},
1680 {0.03946, 0.04003, 0.04171, 0.04435, 0.04780, 0.05193,
1681 0.05680, 0.06306, 0.07290, 0.09873, 0.34748},
1682 {0.01151, 0.01283, 0.01718, 0.02282, 0.02880, 0.03479,
1683 0.04098, 0.04910, 0.06413, 0.10567, 0.36897},
1684 {0.01116, 0.01290, 0.01721, 0.02299, 0.02863, 0.03447,
1685 0.04074, 0.04984, 0.06839, 0.11625, 0.37277},
1686 {0.03919, 0.03974, 0.04131, 0.04380, 0.04703, 0.05102,
1687 0.05602, 0.06309, 0.07651, 0.10938, 0.36838},
1688 {0.06493, 0.06560, 0.06640, 0.06802, 0.07051, 0.07392,
1689 0.07853, 0.08510, 0.09690, 0.12621, 0.38058},
1690 {0.09174, 0.09186, 0.09225, 0.09303, 0.09477, 0.00000,
1691 0.11205, 0.11952, 0.13461, 0.16984, 0.43017},
1692 {0.14356, 0.14494, 0.14959, 0.16002, 0.18328, 0.27981,
1693 0.22785, 0.21240, 0.21948, 0.25965, 0.52392},
1694 {0.23120, 0.23366, 0.24046, 0.25422, 0.28071, 0.36914,
1695 0.32999, 0.31208, 0.31772, 0.35804, 0.62249},
1696 {0.32686, 0.32916, 0.33646, 0.35053, 0.37710, 0.46292,
1697 0.42773, 0.40948, 0.41497, 0.45527, 0.71955},
1698 {0.42353, 0.42583, 0.43317, 0.44727, 0.47380, 0.55884,
1699 0.52479, 0.50650, 0.51194, 0.55225, 0.81658},
1700 {0.52038, 0.52271, 0.53000, 0.54415, 0.57064, 0.65545,
1701 0.62172, 0.60341, 0.60885, 0.64915, 0.91339},
1702 {0.61724, 0.61953, 0.62694, 0.64098, 0.66756, 0.75226,
1703 0.71862, 0.70030, 0.70575, 0.74604, 1.01035},
1704 {0.71460, 0.71678, 0.72376, 0.73786, 0.76447, 0.84913,
1705 0.81551, 0.79720, 0.80264, 0.84292, 1.10723},
1706 {0.81101, 0.81334, 0.82066, 0.83475, 0.86127, 0.94599,
1707 0.91240, 0.89408, 0.89952, 0.93981, 1.20409},
1708 {0.90788, 0.91023, 0.91752, 0.93163, 0.95815, 1.04293,
1709 1.00929, 0.99096, 0.99640, 1.03669, 1.30106},
1710 {1.00477, 1.00707, 1.01449, 1.02852, 1.05504, 1.13976,
1711 1.10617, 1.08784, 1.09329, 1.13358, 1.39796},
1712 {1.10166, 1.10397, 1.11130, 1.12541, 1.15257, 1.23672,
1713 1.20307, 1.18472, 1.19018, 1.23046, 1.49486},
1714 {1.19854, 1.20084, 1.20818, 1.22235, 1.24885, 1.33355,
1715 1.29992, 1.28156, 1.28707, 1.32735, 1.59177},
1716 {1.29544, 1.29780, 1.30507, 1.31917, 1.34575, 1.43073,
1717 1.39681, 1.37851, 1.38396, 1.42377, 1.68854},
1718 {1.39236, 1.39462, 1.40205, 1.41607, 1.44259, 1.52745,
1719 1.49368, 1.47541, 1.48083, 1.52112, 1.78546},
1720 {1.49314, 1.49149, 1.49885, 1.51297, 1.53949, 1.62420,
1721 1.59016, 1.57231, 1.57772, 1.61800, 1.88048},
1722 {1.58610, 1.58839, 1.59572, 1.60983, 1.63635, 1.72109,
1723 1.68651, 1.66921, 1.67463, 1.71489, 1.97918},
1724 {1.68400, 1.68529, 1.69261, 1.70671, 1.73331, 1.81830,
1725 1.78341, 1.76605, 1.77150, 1.81179, 2.07608},
1726 {1.77991, 1.78215, 1.78952, 1.80385, 1.83014, 1.91486,
1727 1.88128, 1.86215, 1.86837, 1.90865, 2.17304},
1728 {1.87674, 1.87904, 1.88647, 1.90052, 1.92712, 2.01173,
1729 1.97812, 1.95905, 1.96527, 2.00710, 2.26979},
1730 {1.97369, 1.97594, 1.98326, 1.99869, 2.02442, 2.10865,
1731 2.07501, 2.05666, 2.06214, 2.10243, 2.36669},
1732 {2.07052, 2.07281, 2.08016, 2.09425, 2.12132, 2.20555,
1733 2.17182, 2.15341, 2.15904, 2.19933, 2.46363},
1734 {2.16742, 2.16971, 2.17707, 2.19114, 2.21766, 2.30240,
1735 2.26877, 2.25015, 2.25573, 2.29586, 2.56060},
1736 {2.26423, 2.26659, 2.27396, 2.28803, 2.31456, 2.40828,
1737 2.36567, 2.34705, 2.35282, 2.39765, 2.65744},
1738 {2.36153, 2.36349, 2.37330, 2.38501, 2.41159, 2.49940,
1739 2.46257, 2.44420, 2.44843, 2.48987, 2.75431},
1740 {2.46558, 2.46035, 2.46822, 2.48181, 2.50849, 2.59630,
1741 2.55947, 2.54112, 2.54513, 2.58677, 2.85094},
1742 {2.56248, 2.55723, 2.56486, 2.57871, 2.60520, 2.68998,
1743 2.65626, 2.63790, 2.64316, 2.68360, 2.94813},
1744 {2.65178, 2.65441, 2.66153, 2.67556, 2.70210, 2.78687,
1745 2.75319, 2.73463, 2.74032, 2.78060, 3.04503},
1746 {2.74868, 2.75131, 2.75870, 2.77245, 2.79385, 2.88700,
1747 2.85009, 2.83177, 2.83723, 2.87750, 3.14193},
1748 {2.84574, 2.84789, 2.85560, 2.86935, 2.89075, 2.98060,
1749 2.94576, 2.92868, 2.93356, 2.97436, 3.23868},
1750 {2.94239, 2.94469, 2.95221, 2.96625, 2.99345, 3.07747,
1751 3.04266, 3.02545, 3.03051, 3.07118, 3.33555}};
1752
1753 // Garfield simulation at UD = -1600V; vd = 1.158cm/microsec, <driftfield> = 558V/cm
1754 Float_t time1600[ktimebin][kZbin] =
1755 {{0.09169, 0.09203, 0.09305, 0.09473, 0.09714, 0.10032,
1756 0.10441, 0.10990, 0.11835, 0.13986, 0.37845},
1757 {0.06589, 0.06626, 0.06738, 0.06924, 0.07184, 0.07521,
1758 0.07947, 0.08512, 0.09379, 0.11603, 0.35648},
1759 {0.03947, 0.04003, 0.04171, 0.04434, 0.04778, 0.05190,
1760 0.05678, 0.06304, 0.07292, 0.09876, 0.34759},
1761 {0.01111, 0.01281, 0.01718, 0.02281, 0.02879, 0.03477,
1762 0.04097, 0.04910, 0.06415, 0.10573, 0.36896},
1763 {0.01120, 0.01311, 0.01721, 0.02279, 0.02862, 0.03446,
1764 0.04074, 0.04981, 0.06825, 0.11595, 0.37255},
1765 {0.03919, 0.03980, 0.04132, 0.04380, 0.04704, 0.05102,
1766 0.05602, 0.06302, 0.07633, 0.10896, 0.36743},
1767 {0.06531, 0.06528, 0.06631, 0.06805, 0.07053, 0.07392,
1768 0.07853, 0.08505, 0.09669, 0.12578, 0.37967},
1769 {0.09157, 0.09171, 0.09216, 0.09301, 0.09475, 0.00000,
1770 0.11152, 0.11879, 0.13352, 0.16802, 0.42750},
1771 {0.13977, 0.14095, 0.14509, 0.15433, 0.17534, 0.26406,
1772 0.21660, 0.20345, 0.21113, 0.25067, 0.51434},
1773 {0.21816, 0.22041, 0.22631, 0.23850, 0.26208, 0.34340,
1774 0.30755, 0.29237, 0.29878, 0.33863, 0.60258},
1775 {0.30344, 0.30547, 0.31241, 0.32444, 0.34809, 0.42696,
1776 0.39464, 0.37919, 0.38546, 0.42530, 0.68926},
1777 {0.38969, 0.39164, 0.39810, 0.41059, 0.43441, 0.51246,
1778 0.48112, 0.46562, 0.47191, 0.51172, 0.77558},
1779 {0.47592, 0.47799, 0.48442, 0.49689, 0.52061, 0.59855,
1780 0.56752, 0.55201, 0.55826, 0.59808, 0.86202},
1781 {0.56226, 0.56428, 0.57074, 0.58324, 0.60696, 0.68483,
1782 0.65388, 0.63837, 0.64461, 0.68445, 0.94830},
1783 {0.64881, 0.65063, 0.65709, 0.66958, 0.69331, 0.77117,
1784 0.74023, 0.72472, 0.73098, 0.77079, 1.03486},
1785 {0.73506, 0.73698, 0.74344, 0.75596, 0.77964, 0.85751,
1786 0.82658, 0.81107, 0.81731, 0.85712, 1.12106},
1787 {0.82132, 0.82333, 0.82979, 0.84228, 0.86608, 0.94386,
1788 0.91293, 0.89742, 0.90367, 0.94335, 1.20737},
1789 {0.90767, 0.90968, 0.91614, 0.92863, 0.95236, 1.03021,
1790 0.99928, 0.98377, 0.99001, 1.02984, 1.29371},
1791 {0.99410, 0.99602, 1.00257, 1.01498, 1.03869, 1.11720,
1792 1.08563, 1.07011, 1.07637, 1.11621, 1.37873},
1793 {1.08036, 1.08240, 1.08884, 1.10138, 1.12504, 1.20301,
1794 1.17198, 1.15647, 1.16272, 1.20255, 1.46651},
1795 {1.16670, 1.16872, 1.17525, 1.18783, 1.21139, 1.28934,
1796 1.25833, 1.24281, 1.24909, 1.28889, 1.55275},
1797 {1.25307, 1.25510, 1.26153, 1.27404, 1.29773, 1.37584,
1798 1.34469, 1.32916, 1.33536, 1.37524, 1.63915},
1799 {1.33942, 1.34146, 1.34788, 1.36040, 1.38410, 1.46438,
1800 1.43105, 1.41537, 1.42176, 1.46158, 1.72538},
1801 {1.42579, 1.42782, 1.43458, 1.44674, 1.47043, 1.55085,
1802 1.51675, 1.50168, 1.50810, 1.54793, 1.81174},
1803 {1.51207, 1.51454, 1.52060, 1.53307, 1.55684, 1.63478,
1804 1.60336, 1.58820, 1.59446, 1.63414, 1.89814},
1805 {1.59856, 1.60047, 1.60693, 1.61942, 1.64317, 1.72257,
1806 1.69008, 1.67454, 1.68080, 1.72063, 1.98433},
1807 {1.68481, 1.68682, 1.69330, 1.70584, 1.72949, 1.80752,
1808 1.77643, 1.76089, 1.76716, 1.80692, 2.07069},
1809 {1.77117, 1.77319, 1.77969, 1.79260, 1.81583, 1.89376,
1810 1.86226, 1.84720, 1.85355, 1.89256, 2.15343},
1811 {1.85748, 1.85967, 1.86605, 1.87848, 1.90222, 1.98010,
1812 1.94913, 1.93271, 1.93981, 1.97968, 2.24355},
1813 {1.94386, 1.94587, 1.95233, 1.96484, 1.98854, 2.06646,
1814 2.03542, 2.01755, 2.02617, 2.06604, 2.32993},
1815 {2.03022, 2.03230, 2.03868, 2.05134, 2.07488, 2.15367,
1816 2.12178, 2.10391, 2.11252, 2.15432, 2.41623},
1817 {2.11656, 2.11857, 2.12505, 2.13772, 2.16147, 2.23919,
1818 2.20817, 2.19265, 2.20744, 2.23872, 2.49996},
1819 {2.20291, 2.20611, 2.21137, 2.22387, 2.24758, 2.32563,
1820 2.29450, 2.27901, 2.28525, 2.32507, 2.58897},
1821 {2.28922, 2.29172, 2.29774, 2.31345, 2.33400, 2.41287,
1822 2.38086, 2.36535, 2.37160, 2.40869, 2.67113},
1823 {2.37572, 2.37764, 2.38410, 2.39803, 2.42046, 2.49817,
1824 2.46721, 2.45171, 2.45794, 2.49505, 2.76061},
1825 {2.46190, 2.46396, 2.47043, 2.48340, 2.50665, 2.58453,
1826 2.55357, 2.53728, 2.54430, 2.58407, 2.84816},
1827 {2.54833, 2.55032, 2.55679, 2.56976, 2.59312, 2.67103,
1828 2.63993, 2.62364, 2.63062, 2.67040, 2.93444},
1829 {2.63456, 2.63660, 2.64304, 2.65555, 2.67938, 2.75739,
1830 2.72629, 2.71064, 2.71688, 2.75671, 3.01886}};
1831
1832 // Garfield simulation at UD = -1700V; vd = 1.299cm/microsec, <driftfield> = 590V/cm
1833 Float_t time1700[ktimebin][kZbin] =
1834 {{0.09167, 0.09201, 0.09302, 0.09471, 0.09712, 0.10029,
1835 0.10438, 0.10986, 0.11832, 0.13986, 0.37824},
1836 {0.06591, 0.06626, 0.06736, 0.06923, 0.07183, 0.07519,
1837 0.07944, 0.08511, 0.09378, 0.11603, 0.35625},
1838 {0.03946, 0.04003, 0.04170, 0.04433, 0.04777, 0.05189,
1839 0.05676, 0.06301, 0.07291, 0.09880, 0.34724},
1840 {0.01110, 0.01281, 0.01718, 0.02280, 0.02879, 0.03476,
1841 0.04096, 0.04910, 0.06417, 0.10582, 0.36861},
1842 {0.01115, 0.01294, 0.01721, 0.02276, 0.02862, 0.03447,
1843 0.04074, 0.04980, 0.06812, 0.11565, 0.37231},
1844 {0.03920, 0.03974, 0.04133, 0.04381, 0.04706, 0.05105,
1845 0.05603, 0.06299, 0.07618, 0.10860, 0.36646},
1846 {0.06498, 0.06529, 0.06634, 0.06808, 0.07055, 0.07395,
1847 0.07852, 0.08500, 0.09650, 0.12532, 0.37850},
1848 {0.09143, 0.09159, 0.09207, 0.09297, 0.09473, 0.00000,
1849 0.11102, 0.11809, 0.13245, 0.16627, 0.42496},
1850 {0.13646, 0.13750, 0.14112, 0.14926, 0.16806, 0.24960,
1851 0.20627, 0.19536, 0.20366, 0.24256, 0.50557},
1852 {0.20678, 0.20848, 0.21384, 0.22450, 0.24552, 0.32018,
1853 0.28740, 0.27477, 0.28196, 0.32128, 0.58475},
1854 {0.28287, 0.28461, 0.29020, 0.30108, 0.32224, 0.39467,
1855 0.36500, 0.35217, 0.35926, 0.39860, 0.66194},
1856 {0.35972, 0.36145, 0.36713, 0.37797, 0.39912, 0.47091,
1857 0.44212, 0.42925, 0.43632, 0.47563, 0.73892},
1858 {0.43667, 0.43841, 0.44413, 0.45494, 0.47607, 0.54780,
1859 0.51912, 0.50627, 0.51334, 0.55254, 0.81595},
1860 {0.51365, 0.51540, 0.52101, 0.53193, 0.55305, 0.62463,
1861 0.59617, 0.58328, 0.59035, 0.62965, 0.89303},
1862 {0.59064, 0.59240, 0.59801, 0.60893, 0.63009, 0.70169,
1863 0.67317, 0.66028, 0.66735, 0.70666, 0.96995},
1864 {0.66765, 0.66939, 0.67501, 0.68592, 0.70724, 0.77863,
1865 0.75016, 0.73728, 0.74435, 0.78366, 1.04696},
1866 {0.74464, 0.74636, 0.75200, 0.76293, 0.78405, 0.85561,
1867 0.82716, 0.81427, 0.82133, 0.86064, 1.12396},
1868 {0.82165, 0.82340, 0.82902, 0.83991, 0.86104, 0.93266,
1869 0.90414, 0.89128, 0.89834, 0.93763, 1.20100},
1870 {0.89863, 0.90042, 0.90659, 0.91705, 0.93805, 1.00960,
1871 0.98115, 0.96825, 0.97533, 1.01462, 1.27801},
1872 {0.97563, 0.97740, 0.98310, 0.99391, 1.01504, 1.08659,
1873 1.05814, 1.04526, 1.05233, 1.09163, 1.35503},
1874 {1.05276, 1.05451, 1.06002, 1.07090, 1.09099, 1.16357,
1875 1.13516, 1.12225, 1.12933, 1.16863, 1.43195},
1876 {1.12977, 1.13138, 1.13700, 1.14792, 1.16797, 1.24061,
1877 1.21212, 1.19926, 1.20626, 1.24554, 1.50900},
1878 {1.20664, 1.20839, 1.21400, 1.22490, 1.24606, 1.31772,
1879 1.28914, 1.27382, 1.28329, 1.32262, 1.58550},
1880 {1.28367, 1.28541, 1.29099, 1.30189, 1.32312, 1.39460,
1881 1.36612, 1.34924, 1.36030, 1.39961, 1.66310},
1882 {1.36064, 1.36249, 1.36799, 1.37896, 1.40004, 1.48030,
1883 1.44314, 1.43032, 1.43731, 1.47659, 1.73442},
1884 {1.43762, 1.43937, 1.44497, 1.45618, 1.47704, 1.54932,
1885 1.52012, 1.50725, 1.51430, 1.55357, 1.81708},
1886 {1.51462, 1.51937, 1.52203, 1.53316, 1.55403, 1.62572,
1887 1.59713, 1.58424, 1.59128, 1.63061, 1.89406},
1888 {1.59162, 1.59338, 1.59947, 1.60989, 1.63103, 1.70270,
1889 1.67411, 1.66124, 1.66799, 1.70759, 1.97103},
1890 {1.66874, 1.67037, 1.67597, 1.68687, 1.70814, 1.77969,
1891 1.75112, 1.73806, 1.74530, 1.78457, 2.04794},
1892 {1.74693, 1.74749, 1.75297, 1.76476, 1.78500, 1.85667,
1893 1.82811, 1.81504, 1.82101, 1.86161, 2.12492},
1894 {1.82260, 1.82437, 1.82995, 1.84174, 1.86202, 1.93372,
1895 1.90509, 1.89202, 1.89930, 1.93859, 2.20189},
1896 {1.89964, 1.90135, 1.90693, 1.91789, 1.93952, 2.01080,
1897 1.98207, 1.96921, 1.97628, 2.01384, 2.27887},
1898 {1.97662, 1.97917, 1.98611, 1.99487, 2.01601, 2.08778,
1899 2.05846, 2.04623, 2.05330, 2.09244, 2.35585},
1900 {2.05359, 2.05615, 2.06309, 2.07187, 2.09867, 2.16459,
1901 2.13610, 2.12322, 2.13029, 2.16942, 2.43199},
1902 {2.13063, 2.13233, 2.13795, 2.14886, 2.17008, 2.24199,
1903 2.21310, 2.20020, 2.20727, 2.24659, 2.50983},
1904 {2.20761, 2.20931, 2.21955, 2.22624, 2.24708, 2.32147,
1905 2.29009, 2.27725, 2.28276, 2.32359, 2.58680},
1906 {2.28459, 2.29108, 2.29202, 2.30286, 2.32007, 2.39559,
1907 2.36683, 2.35422, 2.36119, 2.40058, 2.66081},
1908 {2.36153, 2.36806, 2.36889, 2.37985, 2.40092, 2.47828,
1909 2.44381, 2.43099, 2.43819, 2.47750, 2.73779}};
1910
1911 // Garfield simulation at UD = -1800V; vd = 1.450cm/microsec, <driftfield> = 623V/cm
1912 Float_t time1800[ktimebin][kZbin] =
1913 {{0.09166, 0.09199, 0.09300, 0.09470, 0.09709, 0.10026,
1914 0.10434, 0.10983, 0.11831, 0.13987, 0.37802},
1915 {0.06585, 0.06623, 0.06735, 0.06921, 0.07180, 0.07520,
1916 0.07941, 0.08507, 0.09376, 0.11604, 0.35624},
1917 {0.03945, 0.04004, 0.04169, 0.04432, 0.04776, 0.05187,
1918 0.05674, 0.06300, 0.07290, 0.09884, 0.34704},
1919 {0.01108, 0.01287, 0.01717, 0.02280, 0.02880, 0.03476,
1920 0.04095, 0.04909, 0.06419, 0.10589, 0.36843},
1921 {0.01115, 0.01287, 0.01720, 0.02276, 0.02862, 0.03448,
1922 0.04073, 0.04973, 0.06799, 0.11535, 0.37224},
1923 {0.03918, 0.03975, 0.04134, 0.04382, 0.04707, 0.05105,
1924 0.05603, 0.06296, 0.07605, 0.10822, 0.36560},
1925 {0.06498, 0.06532, 0.06635, 0.06809, 0.07058, 0.07395,
1926 0.07855, 0.08495, 0.09632, 0.12488, 0.37730},
1927 {0.09130, 0.09160, 0.09199, 0.09300, 0.09472, 0.00000,
1928 0.11059, 0.11747, 0.13146, 0.16462, 0.42233},
1929 {0.13364, 0.13449, 0.13767, 0.14481, 0.16147, 0.23635,
1930 0.19706, 0.18812, 0.19704, 0.23520, 0.49749},
1931 {0.19698, 0.19844, 0.20311, 0.21236, 0.23082, 0.29920,
1932 0.26936, 0.25927, 0.26732, 0.30601, 0.56871},
1933 {0.26518, 0.26670, 0.27160, 0.28099, 0.29955, 0.36597,
1934 0.33885, 0.32858, 0.33653, 0.37524, 0.63801},
1935 {0.33441, 0.33553, 0.34040, 0.34987, 0.36841, 0.43428,
1936 0.40797, 0.39763, 0.40556, 0.44425, 0.70698},
1937 {0.40296, 0.40447, 0.40934, 0.41881, 0.43737, 0.50306,
1938 0.47695, 0.46662, 0.47455, 0.51329, 0.77600},
1939 {0.47296, 0.47344, 0.47830, 0.48779, 0.50632, 0.57200,
1940 0.54593, 0.53559, 0.54351, 0.58222, 0.84489},
1941 {0.54089, 0.54264, 0.54727, 0.55673, 0.57529, 0.64094,
1942 0.61490, 0.60457, 0.61249, 0.65118, 0.91394},
1943 {0.60987, 0.61138, 0.61624, 0.62573, 0.64428, 0.70989,
1944 0.68397, 0.67354, 0.68147, 0.72015, 0.98291},
1945 {0.67883, 0.68035, 0.68521, 0.69469, 0.71324, 0.77896,
1946 0.75287, 0.74251, 0.75043, 0.78912, 1.04458},
1947 {0.74780, 0.74932, 0.75421, 0.76367, 0.78221, 0.84785,
1948 0.82185, 0.81148, 0.81941, 0.85811, 1.12085},
1949 {0.81690, 0.81830, 0.82316, 0.83263, 0.85120, 0.91683,
1950 0.89077, 0.88045, 0.88837, 0.92707, 1.18976},
1951 {0.88574, 0.88726, 0.89228, 0.90198, 0.92017, 0.98578,
1952 0.95974, 0.94947, 0.95734, 0.99604, 1.25873},
1953 {0.95493, 0.95624, 0.96110, 0.97058, 0.98913, 1.05481,
1954 1.02873, 1.01839, 1.02631, 1.06503, 1.32772},
1955 {1.02392, 1.02524, 1.03008, 1.03955, 1.05810, 1.12378,
1956 1.09757, 1.08605, 1.09530, 1.13399, 1.39669},
1957 {1.09270, 1.09418, 1.09911, 1.10854, 1.12714, 1.19281,
1958 1.16502, 1.15633, 1.16427, 1.20271, 1.46574},
1959 {1.16168, 1.16323, 1.16801, 1.17772, 1.19604, 1.26190,
1960 1.23399, 1.22531, 1.23323, 1.27194, 1.53475},
1961 {1.23061, 1.23214, 1.23698, 1.24669, 1.26503, 1.33073,
1962 1.30461, 1.29428, 1.30220, 1.34091, 1.60372},
1963 {1.29960, 1.30110, 1.30596, 1.31544, 1.33398, 1.39962,
1964 1.37228, 1.36323, 1.37121, 1.40988, 1.67273},
1965 {1.36851, 1.37007, 1.37512, 1.38441, 1.40297, 1.46865,
1966 1.44256, 1.43222, 1.44017, 1.47878, 1.74155},
1967 {1.43752, 1.43904, 1.44773, 1.45338, 1.47220, 1.53759,
1968 1.51136, 1.50119, 1.50914, 1.54775, 1.81050},
1969 {1.50646, 1.50802, 1.51288, 1.52237, 1.54097, 1.60697,
1970 1.58049, 1.57018, 1.57811, 1.61678, 1.87947},
1971 {1.57545, 1.57720, 1.58185, 1.59134, 1.60996, 1.67787,
1972 1.64929, 1.63914, 1.64707, 1.68570, 1.94851},
1973 {1.64442, 1.64617, 1.65081, 1.66035, 1.67893, 1.74684,
1974 1.71826, 1.70745, 1.71604, 1.75310, 2.01748},
1975 {1.71337, 1.71513, 1.71978, 1.72932, 1.74645, 1.81346,
1976 1.78739, 1.77642, 1.78501, 1.82151, 2.08644},
1977 {1.78238, 1.78410, 1.78876, 1.79824, 1.81678, 1.88332,
1978 1.85639, 1.84262, 1.85397, 1.89270, 2.15533},
1979 {1.85135, 1.85306, 1.85778, 1.86728, 1.88580, 1.95615,
1980 1.92536, 1.91171, 1.92283, 1.96165, 2.22428},
1981 {1.92774, 1.92184, 1.92672, 1.93618, 1.95477, 2.02048,
1982 1.99427, 1.98068, 1.99192, 2.03062, 2.29338},
1983 {1.98929, 1.99081, 1.99567, 2.00515, 2.02373, 2.08987,
1984 2.06332, 2.05249, 2.05939, 2.09928, 2.36227},
1985 {2.05829, 2.05978, 2.06464, 2.07414, 2.09272, 2.15850,
1986 2.12928, 2.12194, 2.12987, 2.16825, 2.43083},
1987 {2.12726, 2.12869, 2.13360, 2.14425, 2.16160, 2.22872,
1988 2.20118, 2.19078, 2.19876, 2.23416, 2.50007}};
1989
1990 // Garfield simulation at UD = -1900V; vd = 1.610cm/microsec, <driftfield> = 655V/cm
1991 Float_t time1900[ktimebin][kZbin] =
1992 {{0.09166, 0.09198, 0.09298, 0.09467, 0.09707, 0.10023,
1993 0.10431, 0.10980, 0.11828, 0.13988, 0.37789},
1994 {0.06584, 0.06622, 0.06735, 0.06920, 0.07179, 0.07514,
1995 0.07938, 0.08505, 0.09374, 0.11606, 0.35599},
1996 {0.03945, 0.04002, 0.04169, 0.04432, 0.04775, 0.05185,
1997 0.05672, 0.06298, 0.07290, 0.09888, 0.34695},
1998 {0.01109, 0.01281, 0.01717, 0.02279, 0.02878, 0.03476,
1999 0.04094, 0.04909, 0.06421, 0.10597, 0.36823},
2000 {0.01115, 0.01287, 0.01720, 0.02294, 0.02862, 0.03448,
2001 0.04074, 0.04973, 0.06783, 0.11506, 0.37206},
2002 {0.03940, 0.03975, 0.04135, 0.04386, 0.04708, 0.05106,
2003 0.05604, 0.06293, 0.07592, 0.10787, 0.36484},
2004 {0.06500, 0.06534, 0.06638, 0.06811, 0.07060, 0.07413,
2005 0.07852, 0.08491, 0.09614, 0.12446, 0.37626},
2006 {0.09119, 0.09140, 0.09194, 0.09293, 0.09471, 0.00000,
2007 0.11013, 0.11685, 0.13050, 0.16302, 0.41991},
2008 {0.13111, 0.13190, 0.13466, 0.14091, 0.15554, 0.22409,
2009 0.18846, 0.18167, 0.19113, 0.22854, 0.48995},
2010 {0.18849, 0.18975, 0.19380, 0.20185, 0.21797, 0.28050,
2011 0.25368, 0.24575, 0.25446, 0.29249, 0.55442},
2012 {0.24995, 0.25125, 0.25563, 0.26366, 0.27986, 0.34065,
2013 0.31605, 0.30815, 0.31680, 0.35482, 0.61697},
2014 {0.31187, 0.31324, 0.31745, 0.32580, 0.34205, 0.40217,
2015 0.37825, 0.37031, 0.37897, 0.41696, 0.67890},
2016 {0.37401, 0.37531, 0.37955, 0.38777, 0.40395, 0.46408,
2017 0.44037, 0.43242, 0.44108, 0.47906, 0.74122},
2018 {0.43610, 0.43741, 0.44161, 0.44986, 0.46604, 0.52614,
2019 0.50248, 0.49452, 0.50316, 0.54116, 0.80326},
2020 {0.49820, 0.49988, 0.50372, 0.51196, 0.52814, 0.58822,
2021 0.56459, 0.55661, 0.56527, 0.60326, 0.86526},
2022 {0.56032, 0.56161, 0.56582, 0.57408, 0.59024, 0.65032,
2023 0.62670, 0.61872, 0.62737, 0.66537, 0.92749},
2024 {0.62240, 0.62371, 0.62792, 0.63624, 0.65236, 0.71241,
2025 0.68881, 0.68081, 0.68947, 0.72750, 0.98941},
2026 {0.68449, 0.68581, 0.69002, 0.69828, 0.71444, 0.77452,
2027 0.75089, 0.74295, 0.75157, 0.78957, 1.05157},
2028 {0.74660, 0.74790, 0.75212, 0.76036, 0.77654, 0.83748,
2029 0.81299, 0.80501, 0.81193, 0.85168, 1.11375},
2030 {0.80870, 0.81017, 0.81423, 0.82246, 0.83867, 0.89908,
2031 0.87509, 0.86660, 0.87577, 0.91376, 1.17586},
2032 {0.87080, 0.87233, 0.87632, 0.88458, 0.90074, 0.96083,
2033 0.93718, 0.92922, 0.93787, 0.97588, 1.23794},
2034 {0.93291, 0.93422, 0.93844, 0.94667, 0.96293, 1.02295,
2035 0.99929, 0.99127, 0.99997, 1.03797, 1.29995},
2036 {0.99500, 0.99645, 1.00308, 1.00877, 1.02497, 1.08504,
2037 1.06140, 1.05343, 1.06203, 1.10006, 1.36216},
2038 {1.05712, 1.05926, 1.06262, 1.07092, 1.08706, 1.14754,
2039 1.12350, 1.11550, 1.12417, 1.16218, 1.42427},
2040 {1.11921, 1.12059, 1.12473, 1.13297, 1.14916, 1.21140,
2041 1.18560, 1.17284, 1.18625, 1.22414, 1.48629},
2042 {1.18140, 1.18262, 1.18690, 1.19508, 1.21125, 1.27139,
2043 1.24164, 1.23495, 1.24838, 1.28634, 1.54852},
2044 {1.24340, 1.24473, 1.24901, 1.25732, 1.27336, 1.33358,
2045 1.30793, 1.30179, 1.31047, 1.34848, 1.61066},
2046 {1.30551, 1.30684, 1.31104, 1.32056, 1.33553, 1.39609,
2047 1.37004, 1.36392, 1.37045, 1.41057, 1.67259},
2048 {1.36755, 1.36892, 1.37315, 1.39148, 1.39755, 1.45820,
2049 1.43215, 1.42602, 1.43467, 1.47268, 1.73477},
2050 {1.42966, 1.43101, 1.43549, 1.45359, 1.45976, 1.52031,
2051 1.49601, 1.48811, 1.49677, 1.53477, 1.79691},
2052 {1.49180, 1.49321, 1.49760, 1.51570, 1.52175, 1.58185,
2053 1.55771, 1.55023, 1.55888, 1.59672, 1.85501},
2054 {1.55391, 1.55527, 1.55943, 1.57782, 1.58391, 1.64395,
2055 1.62008, 1.61233, 1.62085, 1.65883, 1.92091},
2056 {1.61599, 1.61732, 1.62154, 1.63993, 1.64612, 1.70608,
2057 1.68237, 1.67108, 1.68301, 1.72110, 1.97931},
2058 {1.67808, 1.67948, 1.68364, 1.70204, 1.70823, 1.76858,
2059 1.74404, 1.73539, 1.74512, 1.78321, 2.04522},
2060 {1.74019, 1.74152, 1.74573, 1.76415, 1.77015, 1.83040,
2061 1.80615, 1.79366, 1.80723, 1.84509, 2.10742},
2062 {1.80235, 1.80362, 1.80783, 1.82626, 1.83227, 1.89246,
2063 1.86795, 1.85405, 1.86938, 1.90720, 2.16953},
2064 {1.86442, 1.86572, 1.86994, 1.88837, 1.89438, 1.95445,
2065 1.93006, 1.92283, 1.93148, 1.96931, 2.23147},
2066 {1.92700, 1.92783, 1.93197, 1.95049, 1.95649, 2.01668,
2067 1.99217, 1.98486, 1.99352, 2.03143, 2.29358}};
2068
2069 // Garfield simulation at UD = -2000V; vd = 1.783cm/microsec, <driftfield> = 688V/cm
2070 Float_t time2000[ktimebin][kZbin] =
2071 {{0.09176, 0.09196, 0.09296, 0.09465, 0.09704, 0.10020,
2072 0.10427, 0.10977, 0.11825, 0.13988, 0.37774},
2073 {0.06583, 0.06620, 0.06735, 0.06918, 0.07177, 0.07513,
2074 0.07936, 0.08503, 0.09372, 0.11606, 0.35586},
2075 {0.03944, 0.04001, 0.04170, 0.04431, 0.04774, 0.05184,
2076 0.05670, 0.06296, 0.07291, 0.09893, 0.34680},
2077 {0.01108, 0.01281, 0.01719, 0.02279, 0.02879, 0.03474,
2078 0.04093, 0.04908, 0.06422, 0.10605, 0.36800},
2079 {0.01114, 0.01287, 0.01720, 0.02276, 0.02863, 0.03449,
2080 0.04073, 0.04970, 0.06774, 0.11478, 0.37179},
2081 {0.03925, 0.03977, 0.04135, 0.04386, 0.04711, 0.05108,
2082 0.05604, 0.06290, 0.07580, 0.10748, 0.36386},
2083 {0.06501, 0.06536, 0.06640, 0.06814, 0.07062, 0.07398,
2084 0.07852, 0.08487, 0.09598, 0.12405, 0.37519},
2085 {0.09109, 0.09127, 0.09188, 0.09292, 0.09472, 0.00000,
2086 0.10964, 0.11630, 0.12960, 0.16150, 0.41765},
2087 {0.12898, 0.12968, 0.13209, 0.13749, 0.15034, 0.21286,
2088 0.18088, 0.17590, 0.18591, 0.22254, 0.48315},
2089 {0.18122, 0.18227, 0.18574, 0.19263, 0.20674, 0.26376,
2090 0.23960, 0.23375, 0.24316, 0.28047, 0.54179},
2091 {0.23674, 0.23784, 0.24142, 0.24847, 0.26264, 0.31810,
2092 0.29602, 0.29008, 0.29944, 0.33675, 0.59795},
2093 {0.29279, 0.29382, 0.29742, 0.30448, 0.31865, 0.37364,
2094 0.35215, 0.34629, 0.35555, 0.39286, 0.65411},
2095 {0.34875, 0.34987, 0.35346, 0.36054, 0.37472, 0.42956,
2096 0.40825, 0.40229, 0.41167, 0.44894, 0.71033},
2097 {0.40484, 0.40594, 0.40954, 0.41660, 0.43077, 0.48560,
2098 0.46433, 0.45840, 0.46772, 0.50500, 0.76632},
2099 {0.46090, 0.46201, 0.46560, 0.47267, 0.48684, 0.54167,
2100 0.52041, 0.51449, 0.52382, 0.56108, 0.82227},
2101 {0.51698, 0.51809, 0.52173, 0.52874, 0.54291, 0.59776,
2102 0.57646, 0.57052, 0.57986, 0.61717, 0.87836},
2103 {0.57306, 0.57418, 0.57782, 0.58513, 0.59899, 0.65380,
2104 0.63255, 0.62661, 0.63594, 0.67325, 0.93460},
2105 {0.62912, 0.63024, 0.63383, 0.64103, 0.65506, 0.70988,
2106 0.68484, 0.68267, 0.69202, 0.72878, 0.99046},
2107 {0.68521, 0.68633, 0.68990, 0.69699, 0.71115, 0.76595,
2108 0.74468, 0.73872, 0.74814, 0.78538, 1.04674},
2109 {0.74127, 0.74239, 0.74605, 0.75303, 0.77022, 0.82204,
2110 0.80078, 0.79484, 0.80416, 0.84147, 1.10261},
2111 {0.79736, 0.79846, 0.80206, 0.80947, 0.82330, 0.87813,
2112 0.85688, 0.85087, 0.86023, 0.89752, 1.15874},
2113 {0.85342, 0.85454, 0.85815, 0.86519, 0.87936, 0.93417,
2114 0.91293, 0.90428, 0.91631, 0.95360, 1.20760},
2115 {0.90949, 0.91061, 0.91423, 0.92128, 0.93544, 0.99026,
2116 0.96807, 0.96305, 0.97239, 1.00967, 1.27078},
2117 {0.96556, 0.96669, 0.97111, 0.97734, 0.99151, 1.04664,
2118 1.02508, 1.01879, 1.02846, 1.06167, 1.32695},
2119 {1.02167, 1.02279, 1.02656, 1.03341, 1.04759, 1.10242,
2120 1.08115, 1.07003, 1.08453, 1.12184, 1.38304},
2121 {1.07776, 1.07883, 1.08242, 1.08950, 1.10384, 1.16422,
2122 1.13725, 1.13133, 1.14061, 1.17793, 1.43910},
2123 {1.13379, 1.13492, 1.13864, 1.14567, 1.15973, 1.21455,
2124 1.19323, 1.18734, 1.19668, 1.23401, 1.49528},
2125 {1.18988, 1.19098, 1.19457, 1.20164, 1.21582, 1.27064,
2126 1.24937, 1.24044, 1.25275, 1.29004, 1.55137},
2127 {1.24592, 1.24706, 1.25087, 1.25773, 1.27188, 1.32670,
2128 1.30544, 1.29953, 1.30883, 1.34613, 1.60743},
2129 {1.30202, 1.30313, 1.30673, 1.31381, 1.32797, 1.38278,
2130 1.36151, 1.35167, 1.36490, 1.40221, 1.66306},
2131 {1.35809, 1.35921, 1.36282, 1.36986, 1.38403, 1.43888,
2132 1.41760, 1.41174, 1.42083, 1.45830, 1.71915},
2133 {1.41419, 1.41528, 1.41890, 1.42595, 1.44011, 1.49496,
2134 1.47368, 1.46769, 1.47706, 1.51436, 1.77523},
2135 {1.47131, 1.47141, 1.47494, 1.48850, 1.49620, 1.55137,
2136 1.52977, 1.51820, 1.53315, 1.57042, 1.83158},
2137 {1.52635, 1.52750, 1.53103, 1.53814, 1.55228, 1.60736,
2138 1.58503, 1.57986, 1.58920, 1.62649, 1.88767},
2139 {1.58418, 1.58355, 1.58711, 1.59526, 1.60833, 1.66316,
2140 1.63345, 1.63261, 1.64556, 1.68204, 1.94359},
2141 {1.64027, 1.63958, 1.64489, 1.65024, 1.66443, 1.71925,
2142 1.69794, 1.69201, 1.70143, 1.73865, 1.99968},
2143 {1.69450, 1.69566, 1.69940, 1.70697, 1.71841, 1.77819,
2144 1.75396, 1.74814, 1.75743, 1.79083, 2.05427},
2145 {1.75054, 1.75221, 1.75527, 1.76306, 1.77662, 1.83428,
2146 1.81006, 1.81173, 1.81345, 1.85076, 2.10289}};
2147
2148 // Garfield simulation at UD = -2100V; vd = 1.959cm/microsec, <driftfield> = 720V/cm
2149 Float_t time2100[ktimebin][kZbin] =
2150 {{0.09160, 0.09194, 0.09294, 0.09462, 0.09701, 0.10017,
2151 0.10424, 0.10974, 0.11823, 0.13988, 0.37762},
2152 {0.06585, 0.06619, 0.06731, 0.06916, 0.07174, 0.07509,
2153 0.07933, 0.08500, 0.09370, 0.11609, 0.35565},
2154 {0.03960, 0.04001, 0.04171, 0.04430, 0.04774, 0.05182,
2155 0.05668, 0.06294, 0.07291, 0.09896, 0.34676},
2156 {0.01109, 0.01280, 0.01716, 0.02279, 0.02876, 0.03474,
2157 0.04096, 0.04908, 0.06424, 0.10612, 0.36790},
2158 {0.01114, 0.01285, 0.01719, 0.02287, 0.02863, 0.03449,
2159 0.04073, 0.04964, 0.06759, 0.11446, 0.37162},
2160 {0.03922, 0.03977, 0.04146, 0.04386, 0.04711, 0.05109,
2161 0.05605, 0.06287, 0.07575, 0.10713, 0.36298},
2162 {0.06504, 0.06538, 0.06641, 0.06818, 0.07064, 0.07426,
2163 0.07852, 0.08483, 0.09581, 0.12363, 0.37424},
2164 {0.09103, 0.09129, 0.09186, 0.09291, 0.09476, 0.00000,
2165 0.10923, 0.11578, 0.12873, 0.16005, 0.41525},
2166 {0.12723, 0.12777, 0.12988, 0.13458, 0.14579, 0.20264,
2167 0.17421, 0.17078, 0.18132, 0.21708, 0.47699},
2168 {0.17508, 0.17601, 0.17897, 0.18487, 0.19698, 0.24881,
2169 0.22737, 0.22337, 0.23348, 0.27000, 0.53032},
2170 {0.22571, 0.22663, 0.22969, 0.23570, 0.24787, 0.29826,
2171 0.27871, 0.27462, 0.28471, 0.32122, 0.58166},
2172 {0.27664, 0.27759, 0.28067, 0.28669, 0.29891, 0.34898,
2173 0.32982, 0.32570, 0.33576, 0.37229, 0.63268},
2174 {0.32766, 0.32862, 0.33170, 0.33778, 0.34988, 0.39973,
2175 0.38088, 0.37675, 0.38680, 0.42333, 0.68159},
2176 {0.37872, 0.37966, 0.38275, 0.38875, 0.40093, 0.45073,
2177 0.43192, 0.42780, 0.43786, 0.47438, 0.73480},
2178 {0.42974, 0.43070, 0.43378, 0.43982, 0.45196, 0.50177,
2179 0.48297, 0.47884, 0.48889, 0.52544, 0.78581},
2180 {0.48081, 0.48175, 0.48482, 0.49084, 0.50302, 0.55290,
2181 0.53398, 0.52988, 0.53994, 0.57647, 0.83687},
2182 {0.53645, 0.53295, 0.53586, 0.54188, 0.55408, 0.60398,
2183 0.58504, 0.58092, 0.59100, 0.62768, 0.88773},
2184 {0.58345, 0.58409, 0.58690, 0.59292, 0.60510, 0.65562,
2185 0.63609, 0.63197, 0.64203, 0.67856, 0.93907},
2186 {0.63397, 0.63490, 0.63795, 0.64403, 0.65613, 0.70612,
2187 0.68714, 0.68301, 0.69294, 0.72955, 0.99000},
2188 {0.68496, 0.68592, 0.68899, 0.69504, 0.70733, 0.75708,
2189 0.73818, 0.73405, 0.74412, 0.78064, 1.04100},
2190 {0.73600, 0.73696, 0.74003, 0.74624, 0.75828, 0.80805,
2191 0.78904, 0.78512, 0.79517, 0.83152, 1.09205},
2192 {0.78709, 0.78801, 0.79108, 0.79709, 0.80931, 0.85906,
2193 0.84027, 0.83614, 0.84621, 0.88269, 1.14058},
2194 {0.83808, 0.83905, 0.84215, 0.84816, 0.86031, 0.91011,
2195 0.89139, 0.88718, 0.89725, 0.93377, 1.19413},
2196 {0.88916, 0.89010, 0.89320, 0.89920, 0.91136, 0.96117,
2197 0.94235, 0.93822, 0.94828, 0.98480, 1.24538},
2198 {0.94036, 0.94113, 0.94422, 0.95023, 0.96241, 1.01220,
2199 0.99310, 0.98927, 0.99933, 1.03585, 1.29629},
2200 {0.99139, 0.99220, 0.99525, 1.00127, 1.01344, 1.06324,
2201 1.04451, 1.04033, 1.04836, 1.08690, 1.34727},
2202 {1.04261, 1.04325, 1.04628, 1.05232, 1.06448, 1.12090,
2203 1.09546, 1.09136, 1.10142, 1.13795, 1.39831},
2204 {1.09331, 1.09429, 1.09742, 1.10336, 1.11557, 1.16547,
2205 1.14658, 1.13642, 1.15247, 1.18898, 1.44936},
2206 {1.14436, 1.14539, 1.14847, 1.15443, 1.16662, 1.21794,
2207 1.19763, 1.19329, 1.20349, 1.23956, 1.50043},
2208 {1.19533, 1.19651, 1.19943, 1.20548, 1.21666, 1.26753,
2209 1.24862, 1.24434, 1.25455, 1.29106, 1.55142},
2210 {1.24638, 1.24756, 1.25046, 1.25648, 1.26764, 1.31858,
2211 1.29967, 1.29538, 1.30499, 1.34211, 1.60250},
2212 {1.29747, 1.29847, 1.30175, 1.30753, 1.31869, 1.36969,
2213 1.35069, 1.34656, 1.35663, 1.39316, 1.64644},
2214 {1.35537, 1.34952, 1.35255, 1.35869, 1.36973, 1.41387,
2215 1.40173, 1.39761, 1.40768, 1.44396, 1.70238},
2216 {1.39956, 1.40056, 1.40380, 1.40961, 1.42178, 1.46492,
2217 1.45278, 1.45423, 1.45872, 1.49522, 1.75557},
2218 {1.45080, 1.45159, 1.45463, 1.46109, 1.47287, 1.52263,
2219 1.50382, 1.50050, 1.50977, 1.54502, 1.80670},
2220 {1.50165, 1.50264, 1.50570, 1.51214, 1.52233, 1.57370,
2221 1.55484, 1.55155, 1.56080, 1.59731, 1.85778},
2222 {1.55269, 1.55364, 1.55675, 1.56274, 1.57491, 1.62598,
2223 1.60590, 1.60259, 1.61185, 1.64836, 1.90883},
2224 {1.60368, 1.60469, 1.60779, 1.61373, 1.62596, 1.67738,
2225 1.65651, 1.65249, 1.66290, 1.69936, 1.95959}};
2226
2227 // Garfield simulation at UD = -2200V; vd = 2.134cm/microsec, <driftfield> = 753V/cm
2228 Float_t time2200[ktimebin][kZbin] =
2229 {{0.09162, 0.09194, 0.09292, 0.09460, 0.09702, 0.10014,
2230 0.10421, 0.10971, 0.11820, 0.13990, 0.37745},
2231 {0.06581, 0.06618, 0.06730, 0.06915, 0.07173, 0.07507,
2232 0.07931, 0.08497, 0.09368, 0.11609, 0.35560},
2233 {0.03947, 0.04001, 0.04167, 0.04429, 0.04772, 0.05183,
2234 0.05667, 0.06293, 0.07292, 0.09900, 0.34673},
2235 {0.01111, 0.01280, 0.01716, 0.02279, 0.02876, 0.03473,
2236 0.04091, 0.04907, 0.06426, 0.10620, 0.36766},
2237 {0.01113, 0.01285, 0.01719, 0.02276, 0.02863, 0.03452,
2238 0.04076, 0.04960, 0.06745, 0.11419, 0.37139},
2239 {0.03923, 0.03978, 0.04137, 0.04387, 0.04713, 0.05110,
2240 0.05605, 0.06284, 0.07551, 0.10677, 0.36210},
2241 {0.06505, 0.06540, 0.06644, 0.06820, 0.07069, 0.07401,
2242 0.07852, 0.08479, 0.09565, 0.12325, 0.37313},
2243 {0.09107, 0.09127, 0.09181, 0.09291, 0.09474, 0.00000,
2244 0.10883, 0.11528, 0.12789, 0.15865, 0.41313},
2245 {0.12559, 0.12622, 0.12800, 0.13206, 0.14166, 0.19331,
2246 0.16832, 0.16632, 0.17724, 0.21218, 0.47098},
2247 {0.16992, 0.17070, 0.17325, 0.17831, 0.18871, 0.23557,
2248 0.21690, 0.21451, 0.22514, 0.26082, 0.52034},
2249 {0.21640, 0.21722, 0.21987, 0.22500, 0.23540, 0.28097,
2250 0.26399, 0.26154, 0.27214, 0.30784, 0.56734},
2251 {0.26318, 0.26400, 0.26679, 0.27181, 0.28220, 0.32739,
2252 0.31090, 0.30842, 0.31902, 0.35474, 0.61415},
2253 {0.31001, 0.31085, 0.31348, 0.31866, 0.32903, 0.37412,
2254 0.35777, 0.35546, 0.36588, 0.40159, 0.66103},
2255 {0.35687, 0.35769, 0.36033, 0.36556, 0.37588, 0.42094,
2256 0.40523, 0.40214, 0.41273, 0.44841, 0.70785},
2257 {0.40372, 0.40457, 0.40723, 0.41234, 0.42273, 0.46778,
2258 0.45148, 0.44903, 0.45961, 0.49526, 0.75486},
2259 {0.45062, 0.45139, 0.45404, 0.45966, 0.46958, 0.51470,
2260 0.49833, 0.49584, 0.50644, 0.54211, 0.80160},
2261 {0.49742, 0.49825, 0.50088, 0.50605, 0.51644, 0.56148,
2262 0.54518, 0.54270, 0.55330, 0.58897, 0.84854},
2263 {0.54427, 0.54510, 0.54774, 0.55290, 0.56329, 0.60846,
2264 0.59203, 0.58955, 0.60014, 0.63578, 0.89528},
2265 {0.59119, 0.59199, 0.59471, 0.59975, 0.61014, 0.65533,
2266 0.63889, 0.63636, 0.64699, 0.68269, 0.94197},
2267 {0.63866, 0.63880, 0.64145, 0.64664, 0.65701, 0.70639,
2268 0.68574, 0.68325, 0.69385, 0.72949, 0.98900},
2269 {0.68483, 0.68566, 0.68831, 0.69347, 0.70386, 0.74890,
2270 0.73260, 0.73010, 0.74069, 0.77638, 1.03320},
2271 {0.73168, 0.73255, 0.73515, 0.74031, 0.75072, 0.79576,
2272 0.77117, 0.77501, 0.78755, 0.82318, 1.08006},
2273 {0.77854, 0.78310, 0.78200, 0.79525, 0.79756, 0.84281,
2274 0.81803, 0.82393, 0.83441, 0.87008, 1.12692},
2275 {0.82541, 0.82642, 0.82916, 0.83528, 0.84442, 0.89086,
2276 0.87315, 0.87079, 0.88125, 0.91694, 1.17648},
2277 {0.87226, 0.87308, 0.87602, 0.88086, 0.89128, 0.93772,
2278 0.92001, 0.91751, 0.92811, 0.95587, 1.22328},
2279 {0.91921, 0.91994, 0.92256, 0.92772, 0.94713, 0.98566,
2280 0.96690, 0.96436, 0.97495, 1.01064, 1.26882},
2281 {0.96790, 0.96679, 0.96941, 0.97463, 0.99399, 1.03001,
2282 1.01376, 1.01112, 1.02181, 1.05749, 1.31568},
2283 {1.01278, 1.01390, 1.01674, 1.02147, 1.03182, 1.07820,
2284 1.06056, 1.05798, 1.06867, 1.10433, 1.36390},
2285 {1.05964, 1.06076, 1.06331, 1.06833, 1.07870, 1.13297,
2286 1.10742, 1.10520, 1.11543, 1.15120, 1.41069},
2287 {1.10664, 1.10762, 1.10997, 1.11519, 1.12556, 1.17531,
2288 1.15427, 1.14620, 1.16229, 1.19805, 1.45758},
2289 {1.15352, 1.15421, 1.15683, 1.16218, 1.17242, 1.21910,
2290 1.20035, 1.19863, 1.20579, 1.24473, 1.50412},
2291 {1.20019, 1.20115, 1.20369, 1.20892, 1.21928, 1.26913,
2292 1.24721, 1.24549, 1.25605, 1.29159, 1.54920},
2293 {1.24707, 1.24846, 1.25052, 1.25602, 1.26608, 1.31558,
2294 1.29448, 1.29232, 1.30293, 1.33675, 1.59798},
2295 {1.29391, 1.29475, 1.29738, 1.30255, 1.31294, 1.36244,
2296 1.34167, 1.33918, 1.34979, 1.38229, 1.64496},
2297 {1.34078, 1.34304, 1.34424, 1.35565, 1.35980, 1.40930,
2298 1.38853, 1.38229, 1.39664, 1.42863, 1.69162},
2299 {1.38762, 1.38847, 1.39110, 1.39627, 1.40666, 1.45183,
2300 1.43539, 1.43289, 1.44348, 1.47549, 1.73876},
2301 {1.43524, 1.43533, 1.43796, 1.44310, 1.45371, 1.49305,
2302 1.48224, 1.47941, 1.49034, 1.52601, 1.78552},
2303 {1.48122, 1.48219, 1.48482, 1.48991, 1.50030, 1.53991,
2304 1.52898, 1.52653, 1.53653, 1.57282, 1.82386}};
2305
2306 if (fTimeStructInfo.fTimeStruct1) delete [] fTimeStructInfo.fTimeStruct1;
2307 fTimeStructInfo.fTimeStruct1 = new Float_t[ktimebin*kZbin];
2308
2309 if (fTimeStructInfo.fTimeStruct2) delete [] fTimeStructInfo.fTimeStruct2;
2310 fTimeStructInfo.fTimeStruct2 = new Float_t[ktimebin*kZbin];
2311
2312 for (Int_t ctrt = 0; ctrt<ktimebin; ctrt++) {
2313 for (Int_t ctrz = 0; ctrz<kZbin; ctrz++) {
2314 if ( vdrift > fVDsmp[6] ) {
2315 fTimeStructInfo.fTimeStruct1[ctrt+ctrz*ktimebin] = time2100[ctrt][ctrz];
2316 fTimeStructInfo.fTimeStruct2[ctrt+ctrz*ktimebin] = time2200[ctrt][ctrz];
2317 fTimeStructInfo.fVDlo = fVDsmp[6];
2318 fTimeStructInfo.fVDhi = fVDsmp[7];
2319 } else if ( vdrift > fVDsmp[5] ) {
2320 fTimeStructInfo.fTimeStruct1[ctrt+ctrz*ktimebin] = time2000[ctrt][ctrz];
2321 fTimeStructInfo.fTimeStruct2[ctrt+ctrz*ktimebin] = time2100[ctrt][ctrz];
2322 fTimeStructInfo.fVDlo = fVDsmp[5];
2323 fTimeStructInfo.fVDhi = fVDsmp[6];
2324 } else if ( vdrift > fVDsmp[4] ) {
2325 fTimeStructInfo.fTimeStruct1[ctrt+ctrz*ktimebin] = time1900[ctrt][ctrz];
2326 fTimeStructInfo.fTimeStruct2[ctrt+ctrz*ktimebin] = time2000[ctrt][ctrz];
2327 fTimeStructInfo.fVDlo = fVDsmp[4];
2328 fTimeStructInfo.fVDhi = fVDsmp[5];
2329 } else if ( vdrift > fVDsmp[3] ) {
2330 fTimeStructInfo.fTimeStruct1[ctrt+ctrz*ktimebin] = time1800[ctrt][ctrz];
2331 fTimeStructInfo.fTimeStruct2[ctrt+ctrz*ktimebin] = time1900[ctrt][ctrz];
2332 fTimeStructInfo.fVDlo = fVDsmp[3];
2333 fTimeStructInfo.fVDhi = fVDsmp[4];
2334 } else if ( vdrift > fVDsmp[2] ) {
2335 fTimeStructInfo.fTimeStruct1[ctrt+ctrz*ktimebin] = time1700[ctrt][ctrz];
2336 fTimeStructInfo.fTimeStruct2[ctrt+ctrz*ktimebin] = time1800[ctrt][ctrz];
2337 fTimeStructInfo.fVDlo = fVDsmp[2];
2338 fTimeStructInfo.fVDhi = fVDsmp[3];
2339 } else if ( vdrift > fVDsmp[1] ) {
2340 fTimeStructInfo.fTimeStruct1[ctrt+ctrz*ktimebin] = time1600[ctrt][ctrz];
2341 fTimeStructInfo.fTimeStruct2[ctrt+ctrz*ktimebin] = time1700[ctrt][ctrz];
2342 fTimeStructInfo.fVDlo = fVDsmp[1];
2343 fTimeStructInfo.fVDhi = fVDsmp[2];
2344 } else if ( vdrift > (fVDsmp[0] - 1.e-5) ) {
2345 fTimeStructInfo.fTimeStruct1[ctrt+ctrz*ktimebin] = time1500[ctrt][ctrz];
2346 fTimeStructInfo.fTimeStruct2[ctrt+ctrz*ktimebin] = time1600[ctrt][ctrz];
2347 fTimeStructInfo.fVDlo = fVDsmp[0];
2348 fTimeStructInfo.fVDhi = fVDsmp[1];
2349 }
2350 }
2351 }
2352}
2353
2354//_____________________________________________________________________________
2355void AliTRDdigitizer::RecalcDiffusion(Float_t vdrift)
2356{
2357 if (vdrift == fDiffusionInfo.fLastVdrift)
2358 return;
7754cd1f 2359
9afbd7de 2360 AliTRDSimParam* simParam = AliTRDSimParam::Instance();
2361 if (!simParam) {
2362 AliError("Could not get simulation parameters\n");
3551db50 2363 return;
2364 }
2365
2366 AliTRDCommonParam* commonParam = AliTRDCommonParam::Instance();
9afbd7de 2367 if (!commonParam) {
2368 AliError("Could not get common parameters\n");
3551db50 2369 return;
2370 }
2371
9afbd7de 2372 AliTRDcalibDB* calibration = AliTRDcalibDB::Instance();
2373 if (!calibration) {
2374 AliError("Could not get calibration object\n");
3551db50 2375 return;
2376 }
2377
2378 Float_t field = commonParam->GetField();
2379 fDiffusionInfo.fLastVdrift = vdrift;
2380
9afbd7de 2381 // DiffusionL
3551db50 2382 {
2383 const Int_t kNb = 5;
2384 Float_t p0[kNb] = { 0.007440, 0.007493, 0.007513, 0.007672, 0.007831 };
2385 Float_t p1[kNb] = { 0.019252, 0.018912, 0.018636, 0.018012, 0.017343 };
2386 Float_t p2[kNb] = { -0.005042, -0.004926, -0.004867, -0.004650, -0.004424 };
2387 Float_t p3[kNb] = { 0.000195, 0.000189, 0.000195, 0.000182, 0.000169 };
2388
2389 Int_t ib = ((Int_t) (10 * (field - 0.15)));
2390 ib = TMath::Max( 0,ib);
2391 ib = TMath::Min(kNb,ib);
2392
2393 fDiffusionInfo.fDiffusionL = p0[ib]
9afbd7de 2394 + p1[ib] * vdrift
2395 + p2[ib] * vdrift*vdrift
2396 + p3[ib] * vdrift*vdrift*vdrift;
3551db50 2397 }
2398
9afbd7de 2399 // DiffusionT
3551db50 2400 {
2401 const Int_t kNb = 5;
2402 Float_t p0[kNb] = { 0.009550, 0.009599, 0.009674, 0.009757, 0.009850 };
2403 Float_t p1[kNb] = { 0.006667, 0.006539, 0.006359, 0.006153, 0.005925 };
2404 Float_t p2[kNb] = { -0.000853, -0.000798, -0.000721, -0.000635, -0.000541 };
2405 Float_t p3[kNb] = { 0.000131, 0.000122, 0.000111, 0.000098, 0.000085 };
2406
2407 Int_t ib = ((Int_t) (10 * (field - 0.15)));
2408 ib = TMath::Max( 0,ib);
2409 ib = TMath::Min(kNb,ib);
2410
2411 fDiffusionInfo.fDiffusionT = p0[ib]
9afbd7de 2412 + p1[ib] * vdrift
2413 + p2[ib] * vdrift*vdrift
2414 + p3[ib] * vdrift*vdrift*vdrift;
3551db50 2415 }
2416
9afbd7de 2417 // OmegaTau
3551db50 2418 fDiffusionInfo.fOmegaTau = calibration->GetOmegaTau(vdrift);
2419
9afbd7de 2420 // Lorentzfactor
3551db50 2421 {
2422 if (commonParam->ExBOn()) {
2423 fDiffusionInfo.fLorentzFactor = 1.0 / (1.0 + fDiffusionInfo.fOmegaTau*fDiffusionInfo.fOmegaTau);
2424 }
2425 else {
2426 fDiffusionInfo.fLorentzFactor = 1.0;
2427 }
2428 }
9afbd7de 2429
3551db50 2430}
2431
2432//_____________________________________________________________________________
2433Float_t AliTRDdigitizer::GetDiffusionL(Float_t vdrift)
2434{
2435 //
2436 // Returns the longitudinal diffusion coefficient for a given drift
2437 // velocity <vd> and a B-field <b> for Xe/CO2 (15%).
2438 // The values are according to a GARFIELD simulation.
2439 //
2440
2441 RecalcDiffusion(vdrift);
2442 return fDiffusionInfo.fDiffusionL;
9afbd7de 2443
3551db50 2444}
2445
2446//_____________________________________________________________________________
2447Float_t AliTRDdigitizer::GetDiffusionT(Float_t vdrift)
2448{
2449 //
2450 // Returns the transverse diffusion coefficient for a given drift
2451 // velocity <vd> and a B-field <b> for Xe/CO2 (15%).
2452 // The values are according to a GARFIELD simulation.
2453 //
2454
2455 RecalcDiffusion(vdrift);
2456 return fDiffusionInfo.fDiffusionT;
9afbd7de 2457
3551db50 2458}
2459
2460//_____________________________________________________________________________
2461Int_t AliTRDdigitizer::Diffusion(Float_t vdrift, Double_t driftlength, Double_t *xyz)
2462{
2463 //
2464 // Applies the diffusion smearing to the position of a single electron
2465 //
2466
2467 RecalcDiffusion(vdrift);
2468
2469 Float_t driftSqrt = TMath::Sqrt(driftlength);
9afbd7de 2470 Float_t sigmaT = driftSqrt * fDiffusionInfo.fDiffusionT;
2471 Float_t sigmaL = driftSqrt * fDiffusionInfo.fDiffusionL;
3551db50 2472 xyz[0] = gRandom->Gaus(xyz[0], sigmaL * GetLorentzFactor(vdrift));
2473 xyz[1] = gRandom->Gaus(xyz[1], sigmaT * GetLorentzFactor(vdrift));
2474 xyz[2] = gRandom->Gaus(xyz[2], sigmaT);
2475
2476 return 1;
9afbd7de 2477
3551db50 2478}
2479
2480//_____________________________________________________________________________
2481Float_t AliTRDdigitizer::GetLorentzFactor(Float_t vd)
2482{
9afbd7de 2483 //
2484 // Returns the recalculated Lorentz factor
2485 //
2486
3551db50 2487 RecalcDiffusion(vd);
2488 return fDiffusionInfo.fLorentzFactor;
9afbd7de 2489
3551db50 2490}
2491
2492//_____________________________________________________________________________
2493Int_t AliTRDdigitizer::ExB(Float_t vdrift, Double_t driftlength, Double_t *xyz)
2494{
2495 //
2496 // Applies E x B effects to the position of a single electron
2497 //
2498
2499 RecalcDiffusion(vdrift);
2500
2501 xyz[0] = xyz[0];
2502 xyz[1] = xyz[1] + fDiffusionInfo.fOmegaTau * driftlength;
2503 xyz[2] = xyz[2];
2504
2505 return 1;
9afbd7de 2506
3551db50 2507}