SetObjectClassName removed
[u/mrichter/AliRoot.git] / TRD / AliTRDdigitizer.cxx
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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 //
b08ed1cf 21// Authors: C. Blume (blume@ikf.uni-frankfurt.de) //
22// C. Lippmann //
23// B. Vulpescu //
f7336fa3 24// //
25// The following effects are included: //
26// - Diffusion //
27// - ExB effects //
28// - Gas gain including fluctuations //
29// - Pad-response (simple Gaussian approximation) //
abaf1f1d 30// - Time-response //
f7336fa3 31// - Electronics noise //
32// - Electronics gain //
33// - Digitization //
34// - ADC threshold //
35// The corresponding parameter can be adjusted via the various //
36// Set-functions. If these parameters are not explicitly set, default //
37// values are used (see Init-function). //
f7336fa3 38// //
39///////////////////////////////////////////////////////////////////////////////
40
6798b56e 41#include <stdlib.h>
42
f7336fa3 43#include <TMath.h>
44#include <TVector.h>
45#include <TRandom.h>
94de3818 46#include <TROOT.h>
47#include <TTree.h>
793ff80c 48#include <TFile.h>
49#include <TF1.h>
abaf1f1d 50#include <TList.h>
85cbec76 51#include <TTask.h>
3becff3c 52#include <TGeoManager.h>
793ff80c 53
54#include "AliRun.h"
88cb7938 55#include "AliRunLoader.h"
56#include "AliLoader.h"
57#include "AliConfig.h"
db30bf0f 58#include "AliMagF.h"
85cbec76 59#include "AliRunDigitizer.h"
88cb7938 60#include "AliRunLoader.h"
61#include "AliLoader.h"
ad2cc20b 62#include "AliLog.h"
f7336fa3 63
64#include "AliTRD.h"
793ff80c 65#include "AliTRDhit.h"
f7336fa3 66#include "AliTRDdigitizer.h"
da581aea 67#include "AliTRDdataArrayI.h"
68#include "AliTRDdataArrayF.h"
793ff80c 69#include "AliTRDsegmentArray.h"
da581aea 70#include "AliTRDdigitsManager.h"
793ff80c 71#include "AliTRDgeometry.h"
a5cadd36 72#include "AliTRDpadPlane.h"
3551db50 73#include "AliTRDcalibDB.h"
74#include "AliTRDSimParam.h"
75#include "AliTRDCommonParam.h"
f7336fa3 76
77ClassImp(AliTRDdigitizer)
78
79//_____________________________________________________________________________
85cbec76 80AliTRDdigitizer::AliTRDdigitizer()
f7336fa3 81{
82 //
83 // AliTRDdigitizer default constructor
84 //
85
85a5290f 86 fRunLoader = 0;
4487dad0 87 fDigitsManager = 0;
4487dad0 88 fSDigitsManager = 0;
85a5290f 89 fSDigitsManagerList = 0;
4487dad0 90 fTRD = 0;
91 fGeo = 0;
abaf1f1d 92 fEvent = 0;
85a5290f 93 fMasks = 0;
abaf1f1d 94 fCompress = kTRUE;
abaf1f1d 95 fSDigits = kFALSE;
96 fSDigitsScale = 0.0;
4487dad0 97 fMergeSignalOnly = kFALSE;
0c24ba98 98
3becff3c 99 fTimeStructInfo.fLastVdrift = 0;
100 fTimeStructInfo.fTimeStruct1 = 0;
101 fTimeStructInfo.fTimeStruct2 = 0;
102 fTimeStructInfo.fVDlo = 0;
103 fTimeStructInfo.fVDhi = 0;
3551db50 104
3becff3c 105 fDiffusionInfo.fLastVdrift = 0;
106 fDiffusionInfo.fDiffusionT = 0.0;
107 fDiffusionInfo.fDiffusionL = 0.0;
3551db50 108 fDiffusionInfo.fLorentzFactor = 0.0;
109
110 Init();
3becff3c 111
f7336fa3 112}
113
114//_____________________________________________________________________________
115AliTRDdigitizer::AliTRDdigitizer(const Text_t *name, const Text_t *title)
85cbec76 116 :AliDigitizer(name,title)
f7336fa3 117{
118 //
85cbec76 119 // AliTRDdigitizer constructor
120 //
121
3551db50 122 Init();
3becff3c 123
85cbec76 124}
125
126//_____________________________________________________________________________
127AliTRDdigitizer::AliTRDdigitizer(AliRunDigitizer *manager
128 , const Text_t *name, const Text_t *title)
129 :AliDigitizer(manager,name,title)
130{
131 //
132 // AliTRDdigitizer constructor
f7336fa3 133 //
134
3551db50 135 Init();
3becff3c 136
bfc40adc 137}
138
139//_____________________________________________________________________________
140AliTRDdigitizer::AliTRDdigitizer(AliRunDigitizer *manager)
141 :AliDigitizer(manager,"AliTRDdigitizer","TRD digitizer")
142{
143 //
144 // AliTRDdigitizer constructor
145 //
146
3551db50 147 Init();
3becff3c 148
3551db50 149}
88cb7938 150
3551db50 151//_____________________________________________________________________________
152Bool_t AliTRDdigitizer::Init()
153{
3becff3c 154 //
155 // Initialize the digitizer with default values
156 //
157
85a5290f 158 fRunLoader = 0;
3551db50 159
160 //NewIO: These data members probably are not needed anymore
4487dad0 161 fDigitsManager = 0;
4487dad0 162 fSDigitsManager = 0;
85a5290f 163 fSDigitsManagerList = 0;
4487dad0 164 fTRD = 0;
165 fGeo = 0;
3551db50 166 //End NewIO comment
3becff3c 167
abaf1f1d 168 fEvent = 0;
85a5290f 169 fMasks = 0;
abaf1f1d 170 fCompress = kTRUE;
abaf1f1d 171 fSDigits = kFALSE;
3551db50 172 fSDigitsScale = 100.; // For the summable digits
4487dad0 173 fMergeSignalOnly = kFALSE;
3551db50 174
3becff3c 175 fTimeStructInfo.fLastVdrift = -1;
176 fTimeStructInfo.fTimeStruct1 = 0;
177 fTimeStructInfo.fTimeStruct2 = 0;
178 fTimeStructInfo.fVDlo = 0;
179 fTimeStructInfo.fVDhi = 0;
3551db50 180
3becff3c 181 fDiffusionInfo.fLastVdrift = -1;
182 fDiffusionInfo.fDiffusionT = 0.0;
183 fDiffusionInfo.fDiffusionL = 0.0;
3551db50 184 fDiffusionInfo.fLorentzFactor = 0.0;
793ff80c 185
3551db50 186 return AliDigitizer::Init();
3becff3c 187
f7336fa3 188}
189
190//_____________________________________________________________________________
73ae7b59 191AliTRDdigitizer::AliTRDdigitizer(const AliTRDdigitizer &d):AliDigitizer(d)
8230f242 192{
193 //
194 // AliTRDdigitizer copy constructor
195 //
196
dd9a6ee3 197 ((AliTRDdigitizer &) d).Copy(*this);
8230f242 198
199}
200
201//_____________________________________________________________________________
f7336fa3 202AliTRDdigitizer::~AliTRDdigitizer()
203{
8230f242 204 //
205 // AliTRDdigitizer destructor
206 //
f7336fa3 207
abaf1f1d 208 if (fDigitsManager) {
209 delete fDigitsManager;
4487dad0 210 fDigitsManager = 0;
f7336fa3 211 }
212
47b5729a 213 fSDigitsManager = 0;
f7336fa3 214
abaf1f1d 215 if (fSDigitsManagerList) {
47b5729a 216 fSDigitsManagerList->Delete();
abaf1f1d 217 delete fSDigitsManagerList;
4487dad0 218 fSDigitsManagerList = 0;
e23fbb27 219 }
220
221 if (fMasks) {
222 delete [] fMasks;
223 fMasks = 0;
224 }
225
3551db50 226 if (fTimeStructInfo.fTimeStruct1)
227 {
228 delete [] fTimeStructInfo.fTimeStruct1;
229 fTimeStructInfo.fTimeStruct1 = 0;
230 }
231
232 if (fTimeStructInfo.fTimeStruct2)
233 {
234 delete [] fTimeStructInfo.fTimeStruct2;
235 fTimeStructInfo.fTimeStruct2 = 0;
236 }
3becff3c 237
f7336fa3 238}
239
240//_____________________________________________________________________________
dd9a6ee3 241AliTRDdigitizer &AliTRDdigitizer::operator=(const AliTRDdigitizer &d)
242{
243 //
244 // Assignment operator
245 //
246
247 if (this != &d) ((AliTRDdigitizer &) d).Copy(*this);
248 return *this;
249
250}
251
252//_____________________________________________________________________________
e0d47c25 253void AliTRDdigitizer::Copy(TObject &d) const
8230f242 254{
255 //
256 // Copy function
257 //
258
85a5290f 259 ((AliTRDdigitizer &) d).fRunLoader = 0;
4487dad0 260 ((AliTRDdigitizer &) d).fDigitsManager = 0;
85a5290f 261 ((AliTRDdigitizer &) d).fSDigitsManager = 0;
262 ((AliTRDdigitizer &) d).fSDigitsManagerList = 0;
4487dad0 263 ((AliTRDdigitizer &) d).fTRD = 0;
264 ((AliTRDdigitizer &) d).fGeo = 0;
85a5290f 265 ((AliTRDdigitizer &) d).fEvent = 0;
266 ((AliTRDdigitizer &) d).fMasks = 0;
abaf1f1d 267 ((AliTRDdigitizer &) d).fCompress = fCompress;
abaf1f1d 268 ((AliTRDdigitizer &) d).fSDigits = fSDigits;
269 ((AliTRDdigitizer &) d).fSDigitsScale = fSDigitsScale;
4487dad0 270 ((AliTRDdigitizer &) d).fMergeSignalOnly = fMergeSignalOnly;
0c24ba98 271
3551db50 272 AliTRDdigitizer& target = (AliTRDdigitizer &) d;
273
274 target.fDiffusionInfo = fDiffusionInfo;
275
3becff3c 276 // Do not copy timestructs, just invalidate lastvdrift.
277 // Next time they are requested, they get recalculated
3551db50 278 if (target.fTimeStructInfo.fTimeStruct1)
279 {
280 delete[] target.fTimeStructInfo.fTimeStruct1;
281 target.fTimeStructInfo.fTimeStruct1 = 0;
282 }
283 if (target.fTimeStructInfo.fTimeStruct2)
284 {
285 delete[] target.fTimeStructInfo.fTimeStruct2;
286 target.fTimeStructInfo.fTimeStruct2 = 0;
3becff3c 287 }
3551db50 288 target.fTimeStructInfo.fLastVdrift = -1;
3becff3c 289
e23fbb27 290}
291
292//_____________________________________________________________________________
e23fbb27 293void AliTRDdigitizer::Exec(Option_t* option)
294{
295 //
296 // Executes the merging
297 //
298
299 Int_t iInput;
300
301 AliTRDdigitsManager *sdigitsManager;
302
303 TString optionString = option;
304 if (optionString.Contains("deb")) {
9afbd7de 305 AliLog::SetClassDebugLevel("AliTRDdigitizer",1);
306 AliInfo("Called with debug option\n");
e23fbb27 307 }
308
cec4059b 309 // The AliRoot file is already connected by the manager
88cb7938 310 AliRunLoader* inrl;
311
9afbd7de 312 if (gAlice) {
313 AliDebug(1,"AliRun object found on file.\n");
314 }
4487dad0 315 else {
88cb7938 316 inrl = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(0));
317 inrl->LoadgAlice();
318 gAlice = inrl->GetAliRun();
9afbd7de 319 if (!gAlice) {
320 AliError("Could not find AliRun object.\n")
321 return;
322 }
4487dad0 323 }
cec4059b 324
e23fbb27 325 Int_t nInput = fManager->GetNinputs();
326 fMasks = new Int_t[nInput];
327 for (iInput = 0; iInput < nInput; iInput++) {
328 fMasks[iInput] = fManager->GetMask(iInput);
329 }
e23fbb27 330
9afbd7de 331 //
e23fbb27 332 // Initialization
9afbd7de 333 //
e23fbb27 334
67c67368 335 AliRunLoader* orl = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName());
336 if (InitDetector()) {
9afbd7de 337
67c67368 338 AliLoader* ogime = orl->GetLoader("TRDLoader");
339
340 TTree* tree = 0;
9afbd7de 341 if (fSDigits) {
342 // If we produce SDigits
343 tree = ogime->TreeS();
344 if (!tree) {
345 ogime->MakeTree("S");
67c67368 346 tree = ogime->TreeS();
67c67368 347 }
9afbd7de 348 }
349 else {
350 // If we produce Digits
351 tree = ogime->TreeD();
352 if (!tree) {
353 ogime->MakeTree("D");
354 tree = ogime->TreeD();
67c67368 355 }
9afbd7de 356 }
357
67c67368 358 MakeBranch(tree);
9afbd7de 359
67c67368 360 }
361
e23fbb27 362 for (iInput = 0; iInput < nInput; iInput++) {
363
9afbd7de 364 AliDebug(1,Form("Add input stream %d\n",iInput));
e23fbb27 365
9afbd7de 366 // Check if the input tree exists
88cb7938 367 inrl = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(iInput));
368 AliLoader* gime = inrl->GetLoader("TRDLoader");
369
370 TTree * treees = gime->TreeS();
9afbd7de 371 if (treees == 0x0) {
372 if (gime->LoadSDigits()) {
373 AliError(Form("Error Occured while loading S. Digits for input %d.",iInput));
374 return;
375 }
88cb7938 376 treees = gime->TreeS();
9afbd7de 377 }
88cb7938 378
379 if (treees == 0x0) {
9afbd7de 380 AliError(Form("Input stream %d does not exist\n",iInput));
c57e2264 381 return;
382 }
383
e23fbb27 384 // Read the s-digits via digits manager
385 sdigitsManager = new AliTRDdigitsManager();
e23fbb27 386 sdigitsManager->SetSDigits(kTRUE);
88cb7938 387
388 AliRunLoader* rl = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(iInput));
389 AliLoader* gimme = rl->GetLoader("TRDLoader");
390 if (!gimme->TreeS()) gimme->LoadSDigits();
391 sdigitsManager->ReadDigits(gimme->TreeS());
e23fbb27 392
393 // Add the s-digits to the input list
394 AddSDigitsManager(sdigitsManager);
395
396 }
397
398 // Convert the s-digits to normal digits
9afbd7de 399 AliDebug(1,"Do the conversion\n");
e23fbb27 400 SDigits2Digits();
401
402 // Store the digits
9afbd7de 403 AliDebug(1,"Write the digits\n");
e23fbb27 404 fDigitsManager->WriteDigits();
88cb7938 405
9afbd7de 406 // Write parameters
67c67368 407 orl->CdGAFile();
67c67368 408
9afbd7de 409 AliDebug(1,"Done\n");
e23fbb27 410
b1113c6b 411 DeleteSDigitsManager();
412
e23fbb27 413}
414
415//_____________________________________________________________________________
e23fbb27 416Bool_t AliTRDdigitizer::Open(const Char_t *file, Int_t nEvent)
f7336fa3 417{
418 //
419 // Opens a ROOT-file with TRD-hits and reads in the hit-tree
420 //
f7336fa3 421 // Connect the AliRoot file containing Geometry, Kine, and Hits
3becff3c 422 //
f540341d 423
e191bb57 424 TString evfoldname = AliConfig::GetDefaultEventFolderName();
9afbd7de 425
f540341d 426 fRunLoader = AliRunLoader::GetRunLoader(evfoldname);
9afbd7de 427 if (!fRunLoader) {
428 fRunLoader = AliRunLoader::Open(file,evfoldname,"UPDATE");
429 }
430
431 if (!fRunLoader) {
432 AliError(Form("Can not open session for file %s.",file));
88cb7938 433 return kFALSE;
434 }
435
9afbd7de 436 if (!fRunLoader->GetAliRun()) {
437 fRunLoader->LoadgAlice();
438 }
88cb7938 439 gAlice = fRunLoader->GetAliRun();
440
da581aea 441 if (gAlice) {
9afbd7de 442 AliDebug(1,"AliRun object found on file.\n");
da581aea 443 }
444 else {
9afbd7de 445 AliError("Could not find AliRun object.\n");
da581aea 446 return kFALSE;
447 }
f7336fa3 448
449 fEvent = nEvent;
450
451 // Import the Trees for the event nEvent in the file
b08ed1cf 452 //fRunLoader->GetEvent(fEvent);
88cb7938 453
454 AliLoader* loader = fRunLoader->GetLoader("TRDLoader");
9afbd7de 455 if (!loader) {
456 AliError("Can not get TRD loader from Run Loader");
457 return kFALSE;
458 }
88cb7938 459
abaf1f1d 460 if (InitDetector()) {
88cb7938 461 TTree* tree = 0;
9afbd7de 462 if (fSDigits) {
463 // If we produce SDigits
464 tree = loader->TreeS();
465 if (!tree) {
466 loader->MakeTree("S");
467 tree = loader->TreeS();
468 }
469 }
470 else {
471 // If we produce Digits
472 if (!tree) {
473 loader->MakeTree("D");
474 tree = loader->TreeD();
475 }
476 }
88cb7938 477 return MakeBranch(tree);
abaf1f1d 478 }
479 else {
480 return kFALSE;
481 }
793ff80c 482
483}
484
485//_____________________________________________________________________________
486Bool_t AliTRDdigitizer::InitDetector()
487{
488 //
489 // Sets the pointer to the TRD detector and the geometry
490 //
491
dd9a6ee3 492 // Get the pointer to the detector class and check for version 1
4487dad0 493 fTRD = (AliTRD *) gAlice->GetDetector("TRD");
cec4059b 494 if (!fTRD) {
9afbd7de 495 AliFatal("No TRD module found\n");
cec4059b 496 exit(1);
497 }
dd9a6ee3 498 if (fTRD->IsVersion() != 1) {
9afbd7de 499 AliFatal("TRD must be version 1 (slow simulator)\n");
dd9a6ee3 500 exit(1);
501 }
502
503 // Get the geometry
504 fGeo = fTRD->GetGeometry();
9afbd7de 505 AliDebug(1,Form("Geometry version %d\n",fGeo->IsVersion()));
dd9a6ee3 506
abaf1f1d 507 // Create a digits manager
47b5729a 508 delete fDigitsManager;
abaf1f1d 509 fDigitsManager = new AliTRDdigitsManager();
510 fDigitsManager->SetSDigits(fSDigits);
511 fDigitsManager->CreateArrays();
512 fDigitsManager->SetEvent(fEvent);
abaf1f1d 513
514 // The list for the input s-digits manager to be merged
47b5729a 515 if (fSDigitsManagerList) {
516 fSDigitsManagerList->Delete();
3becff3c 517 }
518 else {
47b5729a 519 fSDigitsManagerList = new TList();
520 }
abaf1f1d 521
4487dad0 522 return kTRUE;
f7336fa3 523
524}
525
526//_____________________________________________________________________________
88cb7938 527Bool_t AliTRDdigitizer::MakeBranch(TTree* tree) const
6244debe 528{
abaf1f1d 529 //
530 // Create the branches for the digits array
6244debe 531 //
532
88cb7938 533 return fDigitsManager->MakeBranch(tree);
6244debe 534
535}
536
537//_____________________________________________________________________________
f7336fa3 538Bool_t AliTRDdigitizer::MakeDigits()
539{
540 //
872a7aba 541 // Creates digits.
f7336fa3 542 //
543
f7336fa3 544 ///////////////////////////////////////////////////////////////
545 // Parameter
546 ///////////////////////////////////////////////////////////////
547
548 // Converts number of electrons to fC
872a7aba 549 const Double_t kEl2fC = 1.602E-19 * 1.0E15;
f7336fa3 550
551 ///////////////////////////////////////////////////////////////
552
793ff80c 553 // Number of pads included in the pad response
a5cadd36 554 const Int_t kNpad = 3;
793ff80c 555
556 // Number of track dictionary arrays
a5cadd36 557 const Int_t kNDict = AliTRDdigitsManager::kNDict;
793ff80c 558
872a7aba 559 // Half the width of the amplification region
560 const Float_t kAmWidth = AliTRDgeometry::AmThick() / 2.;
3becff3c 561 // Width of the drift region
ccb4315c 562 const Float_t kDrWidth = AliTRDgeometry::DrThick();
3551db50 563
a5cadd36 564 Int_t iRow, iCol, iTime, iPad;
565 Int_t iDict = 0;
566 Int_t nBytes = 0;
f7336fa3 567
a5cadd36 568 Int_t totalSizeDigits = 0;
569 Int_t totalSizeDict0 = 0;
570 Int_t totalSizeDict1 = 0;
571 Int_t totalSizeDict2 = 0;
f7336fa3 572
a5cadd36 573 Int_t timeBinTRFend = 1;
872a7aba 574
a5cadd36 575 Double_t pos[3];
576 Double_t rot[3];
577 Double_t xyz[3];
578 Double_t padSignal[kNpad];
579 Double_t signalOld[kNpad];
872a7aba 580
a5cadd36 581 AliTRDdataArrayF *signals = 0;
582 AliTRDdataArrayI *digits = 0;
8230f242 583 AliTRDdataArrayI *dictionary[kNDict];
da581aea 584
a5cadd36 585 AliTRDpadPlane *padPlane = 0;
586
9afbd7de 587 if (!gGeoManager) {
588 AliFatal("No geometry manager!");
589 }
7754cd1f 590
9afbd7de 591 AliTRDSimParam *simParam = AliTRDSimParam::Instance();
3becff3c 592 if (!simParam) {
9afbd7de 593 AliError("Could not get simulation parameters\n");
3551db50 594 return kFALSE;
595 }
596
9afbd7de 597 AliTRDCommonParam *commonParam = AliTRDCommonParam::Instance();
3becff3c 598 if (!commonParam) {
9afbd7de 599 AliError("Could not get common params\n");
3551db50 600 return kFALSE;
601 }
602
793ff80c 603 // Create a container for the amplitudes
9afbd7de 604 AliTRDsegmentArray *signalsArray = new AliTRDsegmentArray("AliTRDdataArrayF"
605 ,AliTRDgeometry::Ndet());
793ff80c 606
3551db50 607 AliTRDcalibDB* calibration = AliTRDcalibDB::Instance();
3becff3c 608 if (!calibration) {
9afbd7de 609 AliError("Could not get calibration object\n");
3551db50 610 return kFALSE;
611 }
612
613 if (simParam->TRFOn()) {
9afbd7de 614 timeBinTRFend = ((Int_t) (simParam->GetTRFhi()
615 * calibration->GetSamplingFrequency())) - 1;
616 AliDebug(1,Form("Sample the TRF up to bin %d\n",timeBinTRFend));
da581aea 617 }
618
3551db50 619 Float_t elAttachProp = simParam->GetElAttachProp() / 100.;
793ff80c 620
872a7aba 621 if (!fGeo) {
9afbd7de 622 AliError("No geometry defined\n");
872a7aba 623 return kFALSE;
624 }
625
9afbd7de 626 AliDebug(1,"Start creating digits.\n");
872a7aba 627
88cb7938 628 AliLoader* gimme = fRunLoader->GetLoader("TRDLoader");
9afbd7de 629 if (!gimme->TreeH()) {
630 gimme->LoadHits();
631 }
88cb7938 632 TTree* hitTree = gimme->TreeH();
3becff3c 633 if (hitTree == 0x0) {
9afbd7de 634 AliError("Can not get TreeH");
635 return kFALSE;
3becff3c 636 }
88cb7938 637 fTRD->SetTreeAddress();
638
793ff80c 639 // Get the number of entries in the hit tree
640 // (Number of primary particles creating a hit somewhere)
3becff3c 641 Int_t nTrack = (Int_t) hitTree->GetEntries();
9afbd7de 642 AliDebug(1,Form("Found %d primary particles\n",nTrack));
643 AliDebug(1,Form("Sampling = %.0fMHz\n" ,calibration->GetSamplingFrequency()));
644 AliDebug(1,Form("Gain = %d\n" ,((Int_t) simParam->GetGasGain())));
645 AliDebug(1,Form("Noise = %d\n" ,((Int_t) simParam->GetNoise())));
646 if (simParam->TimeStructOn()) {
647 AliDebug(1,"Time Structure of drift cells implemented.\n");
648 }
649 else {
650 AliDebug(1,"Constant drift velocity in drift cells.\n");
a328fff9 651 }
3551db50 652
9afbd7de 653 Int_t detectorOld = -1;
654 Int_t countHits = 0;
655
3becff3c 656 Int_t nTimeTotal = calibration->GetNumberOfTimeBins();
657 Float_t samplingRate = calibration->GetSamplingFrequency();
a328fff9 658
793ff80c 659 // Loop through all entries in the tree
660 for (Int_t iTrack = 0; iTrack < nTrack; iTrack++) {
661
3becff3c 662 gAlice->ResetHits();
663 nBytes += hitTree->GetEvent(iTrack);
793ff80c 664
e23fbb27 665 // Loop through the TRD hits
666 Int_t iHit = 0;
667 AliTRDhit *hit = (AliTRDhit *) fTRD->FirstHit(-1);
668 while (hit) {
669
793ff80c 670 countHits++;
e23fbb27 671 iHit++;
672
ccb4315c 673 pos[0] = hit->X();
674 pos[1] = hit->Y();
675 pos[2] = hit->Z();
676 Float_t q = hit->GetCharge();
677 Int_t track = hit->Track();
678 Int_t detector = hit->GetDetector();
679 Int_t plane = fGeo->GetPlane(detector);
ccb4315c 680 Int_t chamber = fGeo->GetChamber(detector);
3551db50 681 Float_t time0 = AliTRDgeometry::GetTime0(plane);
682
683 padPlane = commonParam->GetPadPlane(plane,chamber);
a5cadd36 684 Float_t row0 = padPlane->GetRow0();
a5cadd36 685 Int_t nRowMax = padPlane->GetNrows();
686 Int_t nColMax = padPlane->GetNcols();
3becff3c 687 Int_t inDrift = 1;
793ff80c 688
b08ed1cf 689 // Don't analyze test hits
690 if (((Int_t) q) != 0) {
dd56b762 691
e23fbb27 692 if (detector != detectorOld) {
e153aaf6 693
e23fbb27 694 // Compress the old one if enabled
695 if ((fCompress) && (detectorOld > -1)) {
9afbd7de 696 AliDebug(1,"Compress the old container ...");
e23fbb27 697 signals->Compress(1,0);
698 for (iDict = 0; iDict < kNDict; iDict++) {
699 dictionary[iDict]->Compress(1,0);
c1e4b257 700 }
793ff80c 701 }
e23fbb27 702 // Get the new container
703 signals = (AliTRDdataArrayF *) signalsArray->At(detector);
704 if (signals->GetNtime() == 0) {
705 // Allocate a new one if not yet existing
e23fbb27 706 signals->Allocate(nRowMax,nColMax,nTimeTotal);
793ff80c 707 }
708 else {
e23fbb27 709 // Expand an existing one
710 if (fCompress) {
e23fbb27 711 signals->Expand();
712 }
793ff80c 713 }
e23fbb27 714 // The same for the dictionary
3becff3c 715 for (iDict = 0; iDict < kNDict; iDict++) {
716 dictionary[iDict] = fDigitsManager->GetDictionary(detector,iDict);
717 if (dictionary[iDict]->GetNtime() == 0) {
718 dictionary[iDict]->Allocate(nRowMax,nColMax,nTimeTotal);
e23fbb27 719 }
3becff3c 720 else {
721 if (fCompress) dictionary[iDict]->Expand();
722 }
e23fbb27 723 }
e23fbb27 724 detectorOld = detector;
793ff80c 725 }
726
9afbd7de 727 // Rotate the sectors on top of each other
728 // by using the geoManager
729 Double_t aaa[3];
730 gGeoManager->MasterToLocal(pos,aaa);
731 if (inDrift) {
732 aaa[2] = time0 - (kDrWidth / 2.0 + kAmWidth) + aaa[2];
733 }
3becff3c 734 else {
9afbd7de 735 aaa[2] = time0 + aaa[2];
3becff3c 736 }
9afbd7de 737 aaa[1] = row0 + padPlane->GetLengthRim() + fGeo->RpadW()
738 - 0.5 * fGeo->GetChamberLength(plane,chamber)
739 + aaa[1];
740 rot[0] = aaa[2];
741 rot[1] = aaa[0];
742 rot[2] = aaa[1];
e23fbb27 743
ccb4315c 744 // The driftlength. It is negative if the hit is between pad plane and anode wires.
a5cadd36 745 Double_t driftlength = time0 - rot[0];
e23fbb27 746
e23fbb27 747 // Loop over all electrons of this hit
748 // TR photons produce hits with negative charge
749 Int_t nEl = ((Int_t) TMath::Abs(q));
750 for (Int_t iEl = 0; iEl < nEl; iEl++) {
751
752 xyz[0] = rot[0];
753 xyz[1] = rot[1];
754 xyz[2] = rot[2];
755
a328fff9 756 // Stupid patch to take care of TR photons that are absorbed
757 // outside the chamber volume. A real fix would actually need
758 // a more clever implementation of the TR hit generation
81a6930e 759 if (q < 0.0) {
a5cadd36 760 if ((xyz[2] < padPlane->GetRowEnd()) ||
761 (xyz[2] > padPlane->GetRow0())) {
81a6930e 762 if (iEl == 0) {
9afbd7de 763 AliDebug(2,Form("Hit outside of sensitive volume, row (z=%f, row0=%f, rowE=%f)\n"
764 ,xyz[2],padPlane->GetRow0(),padPlane->GetRowEnd()));
81a6930e 765 }
766 continue;
a328fff9 767 }
ccb4315c 768 Float_t tt = driftlength + kAmWidth;
769 if (tt < 0.0 || tt > kDrWidth + 2.*kAmWidth) {
81a6930e 770 if (iEl == 0) {
9afbd7de 771 AliDebug(2,Form("Hit outside of sensitive volume, time (Q = %d)\n"
772 ,((Int_t) q)));
81a6930e 773 }
774 continue;
a328fff9 775 }
a328fff9 776 }
777
3551db50 778 // Get row and col of unsmeared electron to retrieve drift velocity
e23fbb27 779 // The pad row (z-direction)
9afbd7de 780 Int_t rowE = padPlane->GetPadRowNumber(xyz[2]);
a5cadd36 781 if (rowE < 0) continue;
9afbd7de 782 Double_t rowOffset = padPlane->GetPadRowOffset(rowE,xyz[2]);
e23fbb27 783
784 // The pad column (rphi-direction)
9afbd7de 785 Double_t offsetTilt = padPlane->GetTiltOffset(rowOffset);
786 Int_t colE = padPlane->GetPadColNumber(xyz[1]+offsetTilt,rowOffset);
de4b10e5 787 if (colE < 0) continue;
9afbd7de 788 Double_t colOffset = padPlane->GetPadColOffset(colE,xyz[1]+offsetTilt);
ccb4315c 789
9afbd7de 790 Float_t driftvelocity = calibration->GetVdrift(detector,colE,rowE);
3551db50 791
792 // Normalised drift length
793 Double_t absdriftlength = TMath::Abs(driftlength);
9afbd7de 794 if (commonParam->ExBOn()) {
3551db50 795 absdriftlength /= TMath::Sqrt(GetLorentzFactor(driftvelocity));
9afbd7de 796 }
3551db50 797
798 // Electron attachment
799 if (simParam->ElAttachOn()) {
800 if (gRandom->Rndm() < (absdriftlength * elAttachProp)) continue;
801 }
802
803 // Apply the diffusion smearing
804 if (simParam->DiffusionOn()) {
805 if (!(Diffusion(driftvelocity, absdriftlength,xyz))) continue;
806 }
807
808 // Apply E x B effects (depends on drift direction)
809 if (commonParam->ExBOn()) {
810 if (!(ExB(driftvelocity, driftlength,xyz))) continue;
811 }
812
813 // The electron position after diffusion and ExB in pad coordinates.
814 // The pad row (z-direction)
e02e7d86 815 rowE = padPlane->GetPadRowNumber(xyz[2]);
3551db50 816 if (rowE < 0) continue;
e02e7d86 817 rowOffset = padPlane->GetPadRowOffset(rowE,xyz[2]);
3551db50 818
819 // The pad column (rphi-direction)
9afbd7de 820 offsetTilt = padPlane->GetTiltOffset(rowOffset);
e02e7d86 821 colE = padPlane->GetPadColNumber(xyz[1]+offsetTilt,rowOffset);
3551db50 822 if (colE < 0) continue;
e02e7d86 823 colOffset = padPlane->GetPadColOffset(colE,xyz[1]+offsetTilt);
3551db50 824
e02e7d86 825 // Also re-retrieve drift velocity because col and row may have changed
9afbd7de 826 driftvelocity = calibration->GetVdrift(detector,colE,rowE);
827 Float_t t0 = calibration->GetT0(detector,colE,rowE);
3551db50 828
829 // Convert the position to drift time, using either constant drift velocity or
ccb4315c 830 // time structure of drift cells (non-isochronity, GARFIELD calculation).
a5cadd36 831 Double_t drifttime;
3551db50 832 if (simParam->TimeStructOn()) {
ccb4315c 833 // Get z-position with respect to anode wire:
3551db50 834 Double_t Z = row0 - xyz[2] + simParam->GetAnodeWireOffset();
9afbd7de 835 Z -= ((Int_t)(2*Z))/2.0;
836 if (Z > 0.25) {
837 Z = 0.5 - Z;
838 }
839 // Use drift time map (GARFIELD)
840 drifttime = TimeStruct(driftvelocity,time0-xyz[0]+kAmWidth,Z);
a5cadd36 841 }
842 else {
ccb4315c 843 // use constant drift velocity
3551db50 844 drifttime = TMath::Abs(time0 - xyz[0]) / driftvelocity;
e23fbb27 845 }
ccb4315c 846
e23fbb27 847 // Apply the gas gain including fluctuations
a5cadd36 848 Double_t ggRndm = 0.0;
e23fbb27 849 do {
850 ggRndm = gRandom->Rndm();
851 } while (ggRndm <= 0);
3551db50 852 Int_t signal = (Int_t) (-(simParam->GetGasGain()) * TMath::Log(ggRndm));
e23fbb27 853
854 // Apply the pad response
cc7cef99 855 if (simParam->PRFOn()) {
e23fbb27 856 // The distance of the electron to the center of the pad
857 // in units of pad width
e02e7d86 858 Double_t dist = (colOffset - 0.5*padPlane->GetColSize(colE))
a5cadd36 859 / padPlane->GetColSize(colE);
6a739e92 860 if (!(calibration->PadResponse(signal,dist,plane,padSignal))) continue;
793ff80c 861 }
e23fbb27 862 else {
863 padSignal[0] = 0.0;
864 padSignal[1] = signal;
865 padSignal[2] = 0.0;
866 }
867
6a739e92 868 // The time bin (always positive), with t0 correction
869 Double_t timeBinIdeal = drifttime * samplingRate + t0;
9afbd7de 870 // Protection
a305677e 871 if (TMath::Abs(timeBinIdeal) > 2*nTimeTotal) {
872 timeBinIdeal = 2 * nTimeTotal;
873 }
6a739e92 874 Int_t timeBinTruncated = (Int_t) timeBinIdeal;
3551db50 875 // The distance of the position to the middle of the timebin
9afbd7de 876 Double_t timeOffset = ((Float_t) timeBinTruncated
877 + 0.5 - timeBinIdeal) / samplingRate;
6a739e92 878
e23fbb27 879 // Sample the time response inside the drift region
880 // + additional time bins before and after.
881 // The sampling is done always in the middle of the time bin
6a739e92 882 for (Int_t iTimeBin = TMath::Max(timeBinTruncated, 0);
883 iTimeBin < TMath::Min(timeBinTruncated+timeBinTRFend,nTimeTotal);
884 iTimeBin++) {
e23fbb27 885
886 // Apply the time response
a5cadd36 887 Double_t timeResponse = 1.0;
888 Double_t crossTalk = 0.0;
6a739e92 889 Double_t time = (iTimeBin - timeBinTruncated) / samplingRate + timeOffset;
3551db50 890 if (simParam->TRFOn()) {
891 timeResponse = simParam->TimeResponse(time);
892 }
893
894 if (simParam->CTOn()) {
895 crossTalk = simParam->CrossTalk(time);
e23fbb27 896 }
897
898 signalOld[0] = 0.0;
899 signalOld[1] = 0.0;
900 signalOld[2] = 0.0;
f7336fa3 901
e23fbb27 902 for (iPad = 0; iPad < kNpad; iPad++) {
903
904 Int_t colPos = colE + iPad - 1;
905 if (colPos < 0) continue;
906 if (colPos >= nColMax) break;
907
908 // Add the signals
dde59437 909 Int_t iCurrentTimeBin = iTimeBin;
e23fbb27 910 signalOld[iPad] = signals->GetDataUnchecked(rowE,colPos,iCurrentTimeBin);
911 if( colPos != colE ) {
912 signalOld[iPad] += padSignal[iPad] * (timeResponse + crossTalk);
913 }
914 else {
915 signalOld[iPad] += padSignal[iPad] * timeResponse;
916 }
917 signals->SetDataUnchecked(rowE,colPos,iCurrentTimeBin,signalOld[iPad]);
918
919 // Store the track index in the dictionary
920 // Note: We store index+1 in order to allow the array to be compressed
3becff3c 921 if (signalOld[iPad] > 0) {
e23fbb27 922 for (iDict = 0; iDict < kNDict; iDict++) {
923 Int_t oldTrack = dictionary[iDict]->GetDataUnchecked(rowE
924 ,colPos
925 ,iCurrentTimeBin);
926 if (oldTrack == track+1) break;
927 if (oldTrack == 0) {
928 dictionary[iDict]->SetDataUnchecked(rowE,colPos,iCurrentTimeBin,track+1);
929 break;
930 }
71d9fa7b 931 }
932 }
872a7aba 933
e23fbb27 934 } // Loop: pads
f7336fa3 935
e23fbb27 936 } // Loop: time bins
f7336fa3 937
e23fbb27 938 } // Loop: electrons of a single hit
f7336fa3 939
e23fbb27 940 } // If: detector and test hit
f7336fa3 941
e23fbb27 942 hit = (AliTRDhit *) fTRD->NextHit();
f7336fa3 943
e23fbb27 944 } // Loop: hits of one primary track
945
946 } // Loop: primary tracks
947
9afbd7de 948 AliDebug(1,Form("Finished analyzing %d hits\n",countHits));
793ff80c 949
0c24ba98 950 // The coupling factor
3551db50 951 Double_t coupling = simParam->GetPadCoupling()
9afbd7de 952 * simParam->GetTimeCoupling();
0c24ba98 953
954 // The conversion factor
9afbd7de 955 Double_t convert = kEl2fC
956 * simParam->GetChipGain();
6244debe 957
793ff80c 958 // Loop through all chambers to finalize the digits
0c24ba98 959 Int_t iDetBeg = 0;
960 Int_t iDetEnd = AliTRDgeometry::Ndet();
0c24ba98 961 for (Int_t iDet = iDetBeg; iDet < iDetEnd; iDet++) {
793ff80c 962
872a7aba 963 Int_t plane = fGeo->GetPlane(iDet);
964 Int_t sector = fGeo->GetSector(iDet);
965 Int_t chamber = fGeo->GetChamber(iDet);
3551db50 966 Int_t nRowMax = commonParam->GetRowMax(plane,chamber,sector);
967 Int_t nColMax = commonParam->GetColMax(plane);
793ff80c 968
9afbd7de 969 Double_t *inADC = new Double_t[nTimeTotal];
970 Double_t *outADC = new Double_t[nTimeTotal];
e23fbb27 971
9afbd7de 972 AliDebug(1,Form("Digitization for chamber %d\n",iDet));
da581aea 973
793ff80c 974 // Add a container for the digits of this detector
abaf1f1d 975 digits = fDigitsManager->GetDigits(iDet);
793ff80c 976 // Allocate memory space for the digits buffer
0c24ba98 977 if (digits->GetNtime() == 0) {
978 digits->Allocate(nRowMax,nColMax,nTimeTotal);
979 }
0c24ba98 980
793ff80c 981 // Get the signal container
982 signals = (AliTRDdataArrayF *) signalsArray->At(iDet);
983 if (signals->GetNtime() == 0) {
984 // Create missing containers
872a7aba 985 signals->Allocate(nRowMax,nColMax,nTimeTotal);
793ff80c 986 }
987 else {
988 // Expand the container if neccessary
989 if (fCompress) signals->Expand();
990 }
991 // Create the missing dictionary containers
3becff3c 992 for (iDict = 0; iDict < kNDict; iDict++) {
993 dictionary[iDict] = fDigitsManager->GetDictionary(iDet,iDict);
994 if (dictionary[iDict]->GetNtime() == 0) {
995 dictionary[iDict]->Allocate(nRowMax,nColMax,nTimeTotal);
0c24ba98 996 }
793ff80c 997 }
f7336fa3 998
793ff80c 999 Int_t nDigits = 0;
1000
9afbd7de 1001 // Don't create noise in detectors that are switched off / not installed, etc.
b08ed1cf 1002 if (!calibration->GetChamberStatus(iDet)) {
6244debe 1003
1004 // Create the digits for this chamber
872a7aba 1005 for (iRow = 0; iRow < nRowMax; iRow++ ) {
1006 for (iCol = 0; iCol < nColMax; iCol++ ) {
6244debe 1007
9afbd7de 1008 // Check whether pad is active / installed / whatever ...
1009 if (calibration->GetPadStatus(iDet,iCol,iRow)) continue;
1010 // Check whether MCM is active / installed / whatever ...
1011 if (calibration->GetMCMStatus(iDet,iCol,iRow)) continue;
1012
e23fbb27 1013 // Create summable digits
1014 if (fSDigits) {
6244debe 1015
e23fbb27 1016 for (iTime = 0; iTime < nTimeTotal; iTime++) {
872a7aba 1017 Float_t signalAmp = signals->GetDataUnchecked(iRow,iCol,iTime);
abaf1f1d 1018 signalAmp *= fSDigitsScale;
e23fbb27 1019 signalAmp = TMath::Min(signalAmp,(Float_t) 1.0e9);
abaf1f1d 1020 Int_t adc = (Int_t) signalAmp;
4487dad0 1021 if (adc > 0) nDigits++;
872a7aba 1022 digits->SetDataUnchecked(iRow,iCol,iTime,adc);
c1e4b257 1023 }
6244debe 1024
e23fbb27 1025 }
1026 // Create normal digits
1027 else {
6244debe 1028
e23fbb27 1029 for (iTime = 0; iTime < nTimeTotal; iTime++) {
1030 Float_t signalAmp = signals->GetDataUnchecked(iRow,iCol,iTime);
11dc3a9e 1031
0c24ba98 1032 // Pad and time coupling
1033 signalAmp *= coupling;
11dc3a9e 1034
1035 Float_t padgain = calibration->GetGainFactor(iDet, iCol, iRow);
9afbd7de 1036 if (padgain <= 0) {
1037 AliError(Form("Not a valid gain %f, %d %d %d\n", padgain, iDet, iCol, iRow));
7754cd1f 1038 }
7eea788e 1039 signalAmp *= padgain;
11dc3a9e 1040
7e582e9f 1041 // Add the noise, starting from minus ADC baseline in electrons
3551db50 1042 Double_t baselineEl = simParam->GetADCbaseline() * (simParam->GetADCinRange()
11dc3a9e 1043 / simParam->GetADCoutRange())
7e582e9f 1044 / convert;
3551db50 1045 signalAmp = TMath::Max((Double_t) gRandom->Gaus(signalAmp,simParam->GetNoise())
7e582e9f 1046 ,-baselineEl);
6244debe 1047 // Convert to mV
1048 signalAmp *= convert;
7e582e9f 1049 // Add ADC baseline in mV
3551db50 1050 signalAmp += simParam->GetADCbaseline() * (simParam->GetADCinRange()
1051 / simParam->GetADCoutRange());
11dc3a9e 1052 // Convert to ADC counts. Set the overflow-bit fADCoutRange if the
6244debe 1053 // signal is larger than fADCinRange
1054 Int_t adc = 0;
3551db50 1055 if (signalAmp >= simParam->GetADCinRange()) {
1056 adc = ((Int_t) simParam->GetADCoutRange());
6244debe 1057 }
1058 else {
11dc3a9e 1059 adc = TMath::Nint(signalAmp * (simParam->GetADCoutRange()
1060 / simParam->GetADCinRange()));
6244debe 1061 }
11dc3a9e 1062
e23fbb27 1063 inADC[iTime] = adc;
1064 outADC[iTime] = adc;
1065 }
6244debe 1066
e23fbb27 1067 for (iTime = 0; iTime < nTimeTotal; iTime++) {
6244debe 1068 // Store the amplitude of the digit if above threshold
3551db50 1069 if (outADC[iTime] > simParam->GetADCthreshold()) {
6244debe 1070 nDigits++;
3583ac1a 1071 digits->SetDataUnchecked(iRow,iCol,iTime,((Int_t) outADC[iTime]));
6244debe 1072 }
6244debe 1073 }
1074
1075 }
e23fbb27 1076
6244debe 1077 }
793ff80c 1078 }
6244debe 1079
793ff80c 1080 }
1081
1082 // Compress the arrays
3becff3c 1083 digits->Compress(1,0);
1084 for (iDict = 0; iDict < kNDict; iDict++) {
1085 dictionary[iDict]->Compress(1,0);
1086 }
f7336fa3 1087
3becff3c 1088 totalSizeDigits += digits->GetSize();
1089 totalSizeDict0 += dictionary[0]->GetSize();
1090 totalSizeDict1 += dictionary[1]->GetSize();
1091 totalSizeDict2 += dictionary[2]->GetSize();
0c24ba98 1092
3becff3c 1093 Float_t nPixel = nRowMax * nColMax * nTimeTotal;
9afbd7de 1094 AliDebug(1,Form("Found %d digits in detector %d (%3.0f).\n"
1095 ,nDigits,iDet
1096 ,100.0 * ((Float_t) nDigits) / nPixel));
abaf1f1d 1097
9afbd7de 1098 if (fCompress) {
1099 signals->Compress(1,0);
1100 }
f7336fa3 1101
e23fbb27 1102 delete [] inADC;
1103 delete [] outADC;
1104
f7336fa3 1105 }
1106
0c24ba98 1107 if (signalsArray) {
1108 delete signalsArray;
1109 signalsArray = 0;
1110 }
1111
9afbd7de 1112 AliDebug(1,Form("Total number of analyzed hits = %d\n",countHits));
1113 AliDebug(1,Form("Total digits data size = %d, %d, %d, %d\n",totalSizeDigits
1114 ,totalSizeDict0
1115 ,totalSizeDict1
1116 ,totalSizeDict2));
abaf1f1d 1117
1118 return kTRUE;
1119
1120}
1121
1122//_____________________________________________________________________________
1123void AliTRDdigitizer::AddSDigitsManager(AliTRDdigitsManager *man)
1124{
1125 //
1126 // Add a digits manager for s-digits to the input list.
1127 //
1128
1129 fSDigitsManagerList->Add(man);
1130
1131}
1132
1133//_____________________________________________________________________________
b1113c6b 1134void AliTRDdigitizer::DeleteSDigitsManager()
1135{
1136 //
1137 // Removes digits manager from the input list.
1138 //
1139
1140 fSDigitsManagerList->Delete();
1141
1142}
1143
1144//_____________________________________________________________________________
abaf1f1d 1145Bool_t AliTRDdigitizer::ConvertSDigits()
1146{
1147 //
1148 // Converts s-digits to normal digits
1149 //
1150
1151 // Number of track dictionary arrays
1152 const Int_t kNDict = AliTRDdigitsManager::kNDict;
1153
1154 // Converts number of electrons to fC
1155 const Double_t kEl2fC = 1.602E-19 * 1.0E15;
1156
1157 Int_t iDict = 0;
e23fbb27 1158 Int_t iRow;
1159 Int_t iCol;
1160 Int_t iTime;
abaf1f1d 1161
3551db50 1162 AliTRDSimParam* simParam = AliTRDSimParam::Instance();
9afbd7de 1163 if (!simParam) {
1164 AliError("Could not get simulation parameters\n");
3551db50 1165 return kFALSE;
1166 }
1167
1168 AliTRDCommonParam* commonParam = AliTRDCommonParam::Instance();
9afbd7de 1169 if (!commonParam) {
1170 AliError("Could not get common parameters\n");
3551db50 1171 return kFALSE;
1172 }
1173
3551db50 1174 AliTRDcalibDB* calibration = AliTRDcalibDB::Instance();
9afbd7de 1175 if (!calibration) {
1176 AliError("Could not get calibration object\n");
3551db50 1177 return kFALSE;
1178 }
1179
abaf1f1d 1180 Double_t sDigitsScale = 1.0 / GetSDigitsScale();
3551db50 1181 Double_t noise = simParam->GetNoise();
1182 Double_t padCoupling = simParam->GetPadCoupling();
1183 Double_t timeCoupling = simParam->GetTimeCoupling();
1184 Double_t chipGain = simParam->GetChipGain();
0c24ba98 1185 Double_t coupling = padCoupling * timeCoupling;
1186 Double_t convert = kEl2fC * chipGain;
3551db50 1187 Double_t adcInRange = simParam->GetADCinRange();
1188 Double_t adcOutRange = simParam->GetADCoutRange();
1189 Int_t adcThreshold = simParam->GetADCthreshold();
1190 Int_t adcBaseline = simParam->GetADCbaseline();
abaf1f1d 1191
9afbd7de 1192 Int_t nTimeTotal = calibration->GetNumberOfTimeBins();
1193
abaf1f1d 1194 AliTRDdataArrayI *digitsIn;
1195 AliTRDdataArrayI *digitsOut;
1196 AliTRDdataArrayI *dictionaryIn[kNDict];
1197 AliTRDdataArrayI *dictionaryOut[kNDict];
3551db50 1198
abaf1f1d 1199 // Loop through the detectors
1200 for (Int_t iDet = 0; iDet < AliTRDgeometry::Ndet(); iDet++) {
da581aea 1201
9afbd7de 1202 AliDebug(1,Form("Convert detector %d to digits.\n",iDet));
abaf1f1d 1203
1204 Int_t plane = fGeo->GetPlane(iDet);
1205 Int_t sector = fGeo->GetSector(iDet);
1206 Int_t chamber = fGeo->GetChamber(iDet);
3551db50 1207 Int_t nRowMax = commonParam->GetRowMax(plane,chamber,sector);
1208 Int_t nColMax = commonParam->GetColMax(plane);
abaf1f1d 1209
e23fbb27 1210 Double_t *inADC = new Double_t[nTimeTotal];
1211 Double_t *outADC = new Double_t[nTimeTotal];
1212
abaf1f1d 1213 digitsIn = fSDigitsManager->GetDigits(iDet);
1214 digitsIn->Expand();
1215 digitsOut = fDigitsManager->GetDigits(iDet);
1216 digitsOut->Allocate(nRowMax,nColMax,nTimeTotal);
1217 for (iDict = 0; iDict < kNDict; iDict++) {
1218 dictionaryIn[iDict] = fSDigitsManager->GetDictionary(iDet,iDict);
1219 dictionaryIn[iDict]->Expand();
1220 dictionaryOut[iDict] = fDigitsManager->GetDictionary(iDet,iDict);
1221 dictionaryOut[iDict]->Allocate(nRowMax,nColMax,nTimeTotal);
1222 }
1223
e23fbb27 1224 for (iRow = 0; iRow < nRowMax; iRow++ ) {
1225 for (iCol = 0; iCol < nColMax; iCol++ ) {
abaf1f1d 1226
11dc3a9e 1227 for (iTime = 0; iTime < nTimeTotal; iTime++) {
9afbd7de 1228
abaf1f1d 1229 Double_t signal = (Double_t) digitsIn->GetDataUnchecked(iRow,iCol,iTime);
1230 signal *= sDigitsScale;
9afbd7de 1231 Float_t padgain = calibration->GetGainFactor(iDet,iCol,iRow);
1232 if (padgain <= 0.0) {
1233 AliError(Form("Not a valid gain %f, %d %d %d\n", padgain, iDet, iCol, iRow));
7754cd1f 1234 }
11dc3a9e 1235
7754cd1f 1236 signal *= padgain;
0c24ba98 1237 // Pad and time coupling
1238 signal *= coupling;
7e582e9f 1239 // Add the noise, starting from minus ADC baseline in electrons
1240 Double_t baselineEl = adcBaseline * (adcInRange / adcOutRange) / convert;
1241 signal = TMath::Max((Double_t) gRandom->Gaus(signal,noise),-baselineEl);
abaf1f1d 1242 // Convert to mV
1243 signal *= convert;
7e582e9f 1244 // add ADC baseline in mV
1245 signal += adcBaseline * (adcInRange / adcOutRange);
11dc3a9e 1246 // Convert to ADC counts. Set the overflow-bit adcOutRange if the
abaf1f1d 1247 // signal is larger than adcInRange
1248 Int_t adc = 0;
1249 if (signal >= adcInRange) {
1250 adc = ((Int_t) adcOutRange);
1251 }
1252 else {
11dc3a9e 1253 adc = TMath::Nint(signal * (adcOutRange / adcInRange));
abaf1f1d 1254 }
e23fbb27 1255 inADC[iTime] = adc;
1256 outADC[iTime] = adc;
9afbd7de 1257
e23fbb27 1258 }
1259
11dc3a9e 1260 for (iTime = 0; iTime < nTimeTotal; iTime++) {
abaf1f1d 1261 // Store the amplitude of the digit if above threshold
e23fbb27 1262 if (outADC[iTime] > adcThreshold) {
3583ac1a 1263 digitsOut->SetDataUnchecked(iRow,iCol,iTime,((Int_t) outADC[iTime]));
e23fbb27 1264 // Copy the dictionary
1265 for (iDict = 0; iDict < kNDict; iDict++) {
1266 Int_t track = dictionaryIn[iDict]->GetDataUnchecked(iRow,iCol,iTime);
1267 dictionaryOut[iDict]->SetDataUnchecked(iRow,iCol,iTime,track);
1268 }
abaf1f1d 1269 }
abaf1f1d 1270 }
e23fbb27 1271
abaf1f1d 1272 }
1273 }
1274
1275 if (fCompress) {
1276 digitsIn->Compress(1,0);
1277 digitsOut->Compress(1,0);
1278 for (iDict = 0; iDict < kNDict; iDict++) {
1279 dictionaryIn[iDict]->Compress(1,0);
1280 dictionaryOut[iDict]->Compress(1,0);
1281 }
1282 }
1283
e23fbb27 1284 delete [] inADC;
1285 delete [] outADC;
1286
abaf1f1d 1287 }
f7336fa3 1288
1289 return kTRUE;
1290
1291}
1292
1293//_____________________________________________________________________________
abaf1f1d 1294Bool_t AliTRDdigitizer::MergeSDigits()
16bf9884 1295{
1296 //
abaf1f1d 1297 // Merges the input s-digits:
1298 // - The amplitude of the different inputs are summed up.
1299 // - Of the track IDs from the input dictionaries only one is
1300 // kept for each input. This works for maximal 3 different merged inputs.
16bf9884 1301 //
1302
abaf1f1d 1303 // Number of track dictionary arrays
1304 const Int_t kNDict = AliTRDdigitsManager::kNDict;
1305
9afbd7de 1306 AliTRDSimParam* simParam = AliTRDSimParam::Instance();
1307 if (!simParam) {
1308 AliError("Could not get simulation parameters\n");
3551db50 1309 return kFALSE;
1310 }
1311
1312 AliTRDCommonParam* commonParam = AliTRDCommonParam::Instance();
9afbd7de 1313 if (!commonParam) {
1314 AliError("Could not get common parameters\n");
3551db50 1315 return kFALSE;
1316 }
1317
9afbd7de 1318 AliTRDcalibDB* calibration = AliTRDcalibDB::Instance();
1319 if (!calibration) {
1320 AliError("Could not get calibration object\n");
3551db50 1321 return kFALSE;
1322 }
1323
abaf1f1d 1324 Int_t iDict = 0;
e23fbb27 1325 Int_t jDict = 0;
abaf1f1d 1326
1327 AliTRDdataArrayI *digitsA;
1328 AliTRDdataArrayI *digitsB;
1329 AliTRDdataArrayI *dictionaryA[kNDict];
1330 AliTRDdataArrayI *dictionaryB[kNDict];
1331
1332 // Get the first s-digits
1333 fSDigitsManager = (AliTRDdigitsManager *) fSDigitsManagerList->First();
9afbd7de 1334 if (!fSDigitsManager) {
1335 AliError("No SDigits manager\n");
1336 return kFALSE;
1337 }
abaf1f1d 1338
1339 // Loop through the other sets of s-digits
1340 AliTRDdigitsManager *mergeSDigitsManager;
9afbd7de 1341 mergeSDigitsManager = (AliTRDdigitsManager *) fSDigitsManagerList->After(fSDigitsManager);
abaf1f1d 1342
9afbd7de 1343 if (mergeSDigitsManager) {
1344 AliDebug(1,Form("Merge %d input files.\n",fSDigitsManagerList->GetSize()));
1345 }
1346 else {
1347 AliDebug(1,"Only one input file.\n");
abaf1f1d 1348 }
1349
3551db50 1350 Int_t nTimeTotal = calibration->GetNumberOfTimeBins();
1351
abaf1f1d 1352 Int_t iMerge = 0;
1353 while (mergeSDigitsManager) {
1354
1355 iMerge++;
1356
1357 // Loop through the detectors
1358 for (Int_t iDet = 0; iDet < AliTRDgeometry::Ndet(); iDet++) {
1359
1360 Int_t plane = fGeo->GetPlane(iDet);
1361 Int_t sector = fGeo->GetSector(iDet);
1362 Int_t chamber = fGeo->GetChamber(iDet);
3551db50 1363 Int_t nRowMax = commonParam->GetRowMax(plane,chamber,sector);
1364 Int_t nColMax = commonParam->GetColMax(plane);
abaf1f1d 1365
1366 // Loop through the pixels of one detector and add the signals
1367 digitsA = fSDigitsManager->GetDigits(iDet);
1368 digitsB = mergeSDigitsManager->GetDigits(iDet);
1369 digitsA->Expand();
1370 digitsB->Expand();
1371 for (iDict = 0; iDict < kNDict; iDict++) {
1372 dictionaryA[iDict] = fSDigitsManager->GetDictionary(iDet,iDict);
1373 dictionaryB[iDict] = mergeSDigitsManager->GetDictionary(iDet,iDict);
1374 dictionaryA[iDict]->Expand();
1375 dictionaryB[iDict]->Expand();
1376 }
1377
4487dad0 1378 // Merge only detectors that contain a signal
1379 Bool_t doMerge = kTRUE;
1380 if (fMergeSignalOnly) {
1381 if (digitsA->GetOverThreshold(0) == 0) {
1382 doMerge = kFALSE;
1383 }
abaf1f1d 1384 }
1385
4487dad0 1386 if (doMerge) {
abaf1f1d 1387
9afbd7de 1388 AliDebug(1,Form("Merge detector %d of input no.%d\n",iDet,iMerge+1));
abaf1f1d 1389
4487dad0 1390 for (Int_t iRow = 0; iRow < nRowMax; iRow++ ) {
1391 for (Int_t iCol = 0; iCol < nColMax; iCol++ ) {
1392 for (Int_t iTime = 0; iTime < nTimeTotal; iTime++) {
1393
1394 // Add the amplitudes of the summable digits
1395 Int_t ampA = digitsA->GetDataUnchecked(iRow,iCol,iTime);
1396 Int_t ampB = digitsB->GetDataUnchecked(iRow,iCol,iTime);
1397 ampA += ampB;
1398 digitsA->SetDataUnchecked(iRow,iCol,iTime,ampA);
1399
9afbd7de 1400 // Add the mask to the track id if defined.
4487dad0 1401 for (iDict = 0; iDict < kNDict; iDict++) {
1402 Int_t trackB = dictionaryB[iDict]->GetDataUnchecked(iRow,iCol,iTime);
1403 if ((fMasks) && (trackB > 0)) {
1404 for (jDict = 0; jDict < kNDict; jDict++) {
1405 Int_t trackA = dictionaryA[iDict]->GetDataUnchecked(iRow,iCol,iTime);
1406 if (trackA == 0) {
1407 trackA = trackB + fMasks[iMerge];
1408 dictionaryA[iDict]->SetDataUnchecked(iRow,iCol,iTime,trackA);
1409 }
1410 }
1411 }
e23fbb27 1412 }
abaf1f1d 1413
4487dad0 1414 }
abaf1f1d 1415 }
4487dad0 1416 }
1417
abaf1f1d 1418 }
1419
1420 if (fCompress) {
1421 digitsA->Compress(1,0);
1422 digitsB->Compress(1,0);
1423 for (iDict = 0; iDict < kNDict; iDict++) {
1424 dictionaryA[iDict]->Compress(1,0);
1425 dictionaryB[iDict]->Compress(1,0);
1426 }
1427 }
1428
1429 }
1430
1431 // The next set of s-digits
9afbd7de 1432 mergeSDigitsManager = (AliTRDdigitsManager *) fSDigitsManagerList->After(mergeSDigitsManager);
abaf1f1d 1433
1434 }
1435
16bf9884 1436 return kTRUE;
1437
1438}
1439
1440//_____________________________________________________________________________
abaf1f1d 1441Bool_t AliTRDdigitizer::SDigits2Digits()
1442{
1443 //
1444 // Merges the input s-digits and converts them to normal digits
1445 //
1446
1447 if (!MergeSDigits()) return kFALSE;
1448
1449 return ConvertSDigits();
1450
1451}
1452
1453//_____________________________________________________________________________
0a29d0f1 1454Bool_t AliTRDdigitizer::WriteDigits() const
f7336fa3 1455{
1456 //
1457 // Writes out the TRD-digits and the dictionaries
1458 //
1459
bdbb05bb 1460 //Write parameters
1461 fRunLoader->CdGAFile();
bdbb05bb 1462
da581aea 1463 // Store the digits and the dictionary in the tree
abaf1f1d 1464 return fDigitsManager->WriteDigits();
f7336fa3 1465
1466}
793ff80c 1467
1468//_____________________________________________________________________________
88cb7938 1469void AliTRDdigitizer::InitOutput(Int_t iEvent)
8e64dd77 1470{
1471 //
1472 // Initializes the output branches
1473 //
1474
1475 fEvent = iEvent;
88cb7938 1476
9afbd7de 1477 if (!fRunLoader) {
1478 AliError("Run Loader is NULL");
1479 return;
1480 }
1481
88cb7938 1482 AliLoader* loader = fRunLoader->GetLoader("TRDLoader");
9afbd7de 1483 if (!loader) {
1484 AliError("Can not get TRD loader from Run Loader");
1485 return;
1486 }
88cb7938 1487
1488 TTree* tree = 0;
1489
9afbd7de 1490 if (fSDigits) {
1491 // If we produce SDigits
88cb7938 1492 tree = loader->TreeS();
9afbd7de 1493 if (!tree) {
88cb7938 1494 loader->MakeTree("S");
1495 tree = loader->TreeS();
9afbd7de 1496 }
1497 }
1498 else {
1499 // If we produce Digits
1500 tree = loader->TreeD();
1501 if (!tree) {
1502 loader->MakeTree("D");
1503 tree = loader->TreeD();
1504 }
1505 }
1506
88cb7938 1507 fDigitsManager->SetEvent(iEvent);
1508 fDigitsManager->MakeBranch(tree);
8e64dd77 1509
1510}
3551db50 1511
1512//_____________________________________________________________________________
1513Double_t AliTRDdigitizer::TimeStruct(Float_t vdrift, Double_t dist, Double_t z)
1514{
1515 //
1516 // Applies the time structure of the drift cells (by C.Lippmann).
1517 // The drift time of electrons to the anode wires depends on the
1518 // distance to the wire (z) and on the position in the drift region.
1519 //
1520 // input :
1521 // dist = radial distance from (cathode) pad plane [cm]
1522 // z = distance from anode wire (parallel to cathode planes) [cm]
1523 //
1524 // output :
1525 // tdrift = the drift time of an electron at the given position
1526 //
1527 // We interpolate between the drift time values at the two drift
1528 // velocities fVDlo and fVDhi, being smaller and larger than
1529 // fDriftVelocity. We use the two stored drift time maps fTimeStruct1
1530 // and fTimeStruct2, calculated for the two mentioned drift velocities.
1531 //
1532
1533 SampleTimeStruct(vdrift);
1534
1535 // indices:
1536 Int_t r1 = (Int_t)(10*dist);
9afbd7de 1537 if (r1 < 0) r1 = 0;
1538 if (r1 > 37) r1 = 37;
1539 Int_t r2 = r1 + 1;
1540 if (r2 < 0) r2 = 0;
1541 if (r2 > 37) r2 = 37;
1542 const Int_t kz1 = ((Int_t)(100 * z / 2.5));
1543 const Int_t kz2 = kz1 + 1;
1544
1545 if ((r1 < 0) || (r1 > 37) || (kz1 < 0) || (kz1 > 10)) {
1546 AliWarning(Form("Indices out of range: dist=%.2f, z=%.2f, r1=%d, kz1=%d\n"
1547 ,dist,z,r1,kz1));
3551db50 1548 }
1549
1550 const Float_t ky111 = fTimeStructInfo.fTimeStruct1[r1+38*kz1];
9afbd7de 1551 const Float_t ky221 = ((r2 <= 37) && (kz2 <= 10))
1552 ? fTimeStructInfo.fTimeStruct1[r2+38*kz2]
1553 : fTimeStructInfo.fTimeStruct1[37+38*10];
1554 const Float_t ky121 = (kz2 <= 10)
1555 ? fTimeStructInfo.fTimeStruct1[r1+38*kz2]
1556 : fTimeStructInfo.fTimeStruct1[r1+38*10];
1557 const Float_t ky211 = (r2 <= 37)
1558 ? fTimeStructInfo.fTimeStruct1[r2+38*kz1]
1559 : fTimeStructInfo.fTimeStruct1[37+38*kz1];
3551db50 1560
1561 // 2D Interpolation, lower drift time map
1562 const Float_t ky11 = (ky211-ky111)*10*dist + ky111 - (ky211-ky111)*r1;
1563 const Float_t ky21 = (ky221-ky121)*10*dist + ky121 - (ky221-ky121)*r1;
1564
1565 const Float_t ky112 = fTimeStructInfo.fTimeStruct2[r1+38*kz1];
9afbd7de 1566 const Float_t ky222 = ((r2 <= 37) && (kz2 <= 10))
1567 ? fTimeStructInfo.fTimeStruct2[r2+38*kz2]
1568 : fTimeStructInfo.fTimeStruct2[37+38*10];
1569 const Float_t ky122 = (kz2 <= 10)
1570 ? fTimeStructInfo.fTimeStruct2[r1+38*kz2]
1571 : fTimeStructInfo.fTimeStruct2[r1+38*10];
1572 const Float_t ky212 = (r2 <= 37)
1573 ? fTimeStructInfo.fTimeStruct2[r2+38*kz1]
1574 : fTimeStructInfo.fTimeStruct2[37+38*kz1];
3551db50 1575
1576 // 2D Interpolation, larger drift time map
1577 const Float_t ky12 = (ky212-ky112)*10*dist + ky112 - (ky212-ky112)*r1;
1578 const Float_t ky22 = (ky222-ky122)*10*dist + ky122 - (ky222-ky122)*r1;
1579
1580 // dist now is the drift distance to the anode wires (negative if electrons are
1581 // between anode wire plane and cathode pad plane)
9afbd7de 1582 dist -= AliTRDgeometry::AmThick() / 2.0;
3551db50 1583
1584 // Get the drift times for the drift velocities fVDlo and fVDhi
9afbd7de 1585 const Float_t ktdrift1 = ((TMath::Abs(dist) > 0.005) || (z > 0.005))
1586 ? (ky21 - ky11) * 100 * z / 2.5 + ky11 - (ky21 - ky11) * kz1
1587 : 0.0;
1588 const Float_t ktdrift2 = ((TMath::Abs(dist) > 0.005) || (z > 0.005))
1589 ? (ky22 - ky12) * 100 * z / 2.5 + ky12 - (ky22 - ky12) * kz1
1590 : 0.0;
3551db50 1591
1592 // 1D Interpolation between the values at fVDlo and fVDhi
1593 Float_t a = (ktdrift2 - ktdrift1) / (fTimeStructInfo.fVDhi - fTimeStructInfo.fVDlo);
1594 Float_t b = ktdrift2 - a * fTimeStructInfo.fVDhi;
1595
3551db50 1596 return a * vdrift + b;
1597
1598}
1599
1600//_____________________________________________________________________________
1601void AliTRDdigitizer::SampleTimeStruct(Float_t vdrift)
1602{
1603 //
1604 // Samples the timing structure of a drift cell
1605 // Drift Time data calculated with Garfield (by C.Lippmann)
1606 //
1607
9afbd7de 1608 // TODO make caching proper, if same timing structure is selected: do not update timestructs!
3551db50 1609
9afbd7de 1610 // Noting to do
1611 if (vdrift == fTimeStructInfo.fLastVdrift) {
3551db50 1612 return;
9afbd7de 1613 }
3551db50 1614
1615 fTimeStructInfo.fLastVdrift = vdrift;
1616
9afbd7de 1617 // Drift time maps are saved for some drift velocity values (in drift region):
3551db50 1618 Float_t fVDsmp[8];
1619 fVDsmp[0] = 1.032;
1620 fVDsmp[1] = 1.158;
1621 fVDsmp[2] = 1.299;
1622 fVDsmp[3] = 1.450;
1623 fVDsmp[4] = 1.610;
1624 fVDsmp[5] = 1.783;
1625 fVDsmp[6] = 1.959;
1626 fVDsmp[7] = 2.134;
1627
9afbd7de 1628 if (vdrift < fVDsmp[0]) {
1629 AliWarning(Form("Drift Velocity too small (%.3f<%.3f)\n",vdrift,fVDsmp[0]));
3551db50 1630 vdrift = fVDsmp[0];
9afbd7de 1631 }
1632 else if (vdrift > fVDsmp[7]) {
1633 AliWarning(Form("Drift Velocity too large (%.3f>%.3f)\n",vdrift,fVDsmp[6]));
3551db50 1634 vdrift = fVDsmp[7];
1635 }
1636
1637 const Int_t ktimebin = 38;
9afbd7de 1638 const Int_t kZbin = 11;
3551db50 1639
1640 // Garfield simulation at UD = -1500V; vd = 1.032cm/microsec, <driftfield> = 525V/cm
1641 Float_t time1500[ktimebin][kZbin] =
1642 {{0.09170, 0.09205, 0.09306, 0.09475, 0.09716, 0.10035,
1643 0.10445, 0.10993, 0.11838, 0.13986, 0.37858},
1644 {0.06588, 0.06626, 0.06739, 0.06926, 0.07186, 0.07524,
1645 0.07951, 0.08515, 0.09381, 0.11601, 0.35673},
1646 {0.03946, 0.04003, 0.04171, 0.04435, 0.04780, 0.05193,
1647 0.05680, 0.06306, 0.07290, 0.09873, 0.34748},
1648 {0.01151, 0.01283, 0.01718, 0.02282, 0.02880, 0.03479,
1649 0.04098, 0.04910, 0.06413, 0.10567, 0.36897},
1650 {0.01116, 0.01290, 0.01721, 0.02299, 0.02863, 0.03447,
1651 0.04074, 0.04984, 0.06839, 0.11625, 0.37277},
1652 {0.03919, 0.03974, 0.04131, 0.04380, 0.04703, 0.05102,
1653 0.05602, 0.06309, 0.07651, 0.10938, 0.36838},
1654 {0.06493, 0.06560, 0.06640, 0.06802, 0.07051, 0.07392,
1655 0.07853, 0.08510, 0.09690, 0.12621, 0.38058},
1656 {0.09174, 0.09186, 0.09225, 0.09303, 0.09477, 0.00000,
1657 0.11205, 0.11952, 0.13461, 0.16984, 0.43017},
1658 {0.14356, 0.14494, 0.14959, 0.16002, 0.18328, 0.27981,
1659 0.22785, 0.21240, 0.21948, 0.25965, 0.52392},
1660 {0.23120, 0.23366, 0.24046, 0.25422, 0.28071, 0.36914,
1661 0.32999, 0.31208, 0.31772, 0.35804, 0.62249},
1662 {0.32686, 0.32916, 0.33646, 0.35053, 0.37710, 0.46292,
1663 0.42773, 0.40948, 0.41497, 0.45527, 0.71955},
1664 {0.42353, 0.42583, 0.43317, 0.44727, 0.47380, 0.55884,
1665 0.52479, 0.50650, 0.51194, 0.55225, 0.81658},
1666 {0.52038, 0.52271, 0.53000, 0.54415, 0.57064, 0.65545,
1667 0.62172, 0.60341, 0.60885, 0.64915, 0.91339},
1668 {0.61724, 0.61953, 0.62694, 0.64098, 0.66756, 0.75226,
1669 0.71862, 0.70030, 0.70575, 0.74604, 1.01035},
1670 {0.71460, 0.71678, 0.72376, 0.73786, 0.76447, 0.84913,
1671 0.81551, 0.79720, 0.80264, 0.84292, 1.10723},
1672 {0.81101, 0.81334, 0.82066, 0.83475, 0.86127, 0.94599,
1673 0.91240, 0.89408, 0.89952, 0.93981, 1.20409},
1674 {0.90788, 0.91023, 0.91752, 0.93163, 0.95815, 1.04293,
1675 1.00929, 0.99096, 0.99640, 1.03669, 1.30106},
1676 {1.00477, 1.00707, 1.01449, 1.02852, 1.05504, 1.13976,
1677 1.10617, 1.08784, 1.09329, 1.13358, 1.39796},
1678 {1.10166, 1.10397, 1.11130, 1.12541, 1.15257, 1.23672,
1679 1.20307, 1.18472, 1.19018, 1.23046, 1.49486},
1680 {1.19854, 1.20084, 1.20818, 1.22235, 1.24885, 1.33355,
1681 1.29992, 1.28156, 1.28707, 1.32735, 1.59177},
1682 {1.29544, 1.29780, 1.30507, 1.31917, 1.34575, 1.43073,
1683 1.39681, 1.37851, 1.38396, 1.42377, 1.68854},
1684 {1.39236, 1.39462, 1.40205, 1.41607, 1.44259, 1.52745,
1685 1.49368, 1.47541, 1.48083, 1.52112, 1.78546},
1686 {1.49314, 1.49149, 1.49885, 1.51297, 1.53949, 1.62420,
1687 1.59016, 1.57231, 1.57772, 1.61800, 1.88048},
1688 {1.58610, 1.58839, 1.59572, 1.60983, 1.63635, 1.72109,
1689 1.68651, 1.66921, 1.67463, 1.71489, 1.97918},
1690 {1.68400, 1.68529, 1.69261, 1.70671, 1.73331, 1.81830,
1691 1.78341, 1.76605, 1.77150, 1.81179, 2.07608},
1692 {1.77991, 1.78215, 1.78952, 1.80385, 1.83014, 1.91486,
1693 1.88128, 1.86215, 1.86837, 1.90865, 2.17304},
1694 {1.87674, 1.87904, 1.88647, 1.90052, 1.92712, 2.01173,
1695 1.97812, 1.95905, 1.96527, 2.00710, 2.26979},
1696 {1.97369, 1.97594, 1.98326, 1.99869, 2.02442, 2.10865,
1697 2.07501, 2.05666, 2.06214, 2.10243, 2.36669},
1698 {2.07052, 2.07281, 2.08016, 2.09425, 2.12132, 2.20555,
1699 2.17182, 2.15341, 2.15904, 2.19933, 2.46363},
1700 {2.16742, 2.16971, 2.17707, 2.19114, 2.21766, 2.30240,
1701 2.26877, 2.25015, 2.25573, 2.29586, 2.56060},
1702 {2.26423, 2.26659, 2.27396, 2.28803, 2.31456, 2.40828,
1703 2.36567, 2.34705, 2.35282, 2.39765, 2.65744},
1704 {2.36153, 2.36349, 2.37330, 2.38501, 2.41159, 2.49940,
1705 2.46257, 2.44420, 2.44843, 2.48987, 2.75431},
1706 {2.46558, 2.46035, 2.46822, 2.48181, 2.50849, 2.59630,
1707 2.55947, 2.54112, 2.54513, 2.58677, 2.85094},
1708 {2.56248, 2.55723, 2.56486, 2.57871, 2.60520, 2.68998,
1709 2.65626, 2.63790, 2.64316, 2.68360, 2.94813},
1710 {2.65178, 2.65441, 2.66153, 2.67556, 2.70210, 2.78687,
1711 2.75319, 2.73463, 2.74032, 2.78060, 3.04503},
1712 {2.74868, 2.75131, 2.75870, 2.77245, 2.79385, 2.88700,
1713 2.85009, 2.83177, 2.83723, 2.87750, 3.14193},
1714 {2.84574, 2.84789, 2.85560, 2.86935, 2.89075, 2.98060,
1715 2.94576, 2.92868, 2.93356, 2.97436, 3.23868},
1716 {2.94239, 2.94469, 2.95221, 2.96625, 2.99345, 3.07747,
1717 3.04266, 3.02545, 3.03051, 3.07118, 3.33555}};
1718
1719 // Garfield simulation at UD = -1600V; vd = 1.158cm/microsec, <driftfield> = 558V/cm
1720 Float_t time1600[ktimebin][kZbin] =
1721 {{0.09169, 0.09203, 0.09305, 0.09473, 0.09714, 0.10032,
1722 0.10441, 0.10990, 0.11835, 0.13986, 0.37845},
1723 {0.06589, 0.06626, 0.06738, 0.06924, 0.07184, 0.07521,
1724 0.07947, 0.08512, 0.09379, 0.11603, 0.35648},
1725 {0.03947, 0.04003, 0.04171, 0.04434, 0.04778, 0.05190,
1726 0.05678, 0.06304, 0.07292, 0.09876, 0.34759},
1727 {0.01111, 0.01281, 0.01718, 0.02281, 0.02879, 0.03477,
1728 0.04097, 0.04910, 0.06415, 0.10573, 0.36896},
1729 {0.01120, 0.01311, 0.01721, 0.02279, 0.02862, 0.03446,
1730 0.04074, 0.04981, 0.06825, 0.11595, 0.37255},
1731 {0.03919, 0.03980, 0.04132, 0.04380, 0.04704, 0.05102,
1732 0.05602, 0.06302, 0.07633, 0.10896, 0.36743},
1733 {0.06531, 0.06528, 0.06631, 0.06805, 0.07053, 0.07392,
1734 0.07853, 0.08505, 0.09669, 0.12578, 0.37967},
1735 {0.09157, 0.09171, 0.09216, 0.09301, 0.09475, 0.00000,
1736 0.11152, 0.11879, 0.13352, 0.16802, 0.42750},
1737 {0.13977, 0.14095, 0.14509, 0.15433, 0.17534, 0.26406,
1738 0.21660, 0.20345, 0.21113, 0.25067, 0.51434},
1739 {0.21816, 0.22041, 0.22631, 0.23850, 0.26208, 0.34340,
1740 0.30755, 0.29237, 0.29878, 0.33863, 0.60258},
1741 {0.30344, 0.30547, 0.31241, 0.32444, 0.34809, 0.42696,
1742 0.39464, 0.37919, 0.38546, 0.42530, 0.68926},
1743 {0.38969, 0.39164, 0.39810, 0.41059, 0.43441, 0.51246,
1744 0.48112, 0.46562, 0.47191, 0.51172, 0.77558},
1745 {0.47592, 0.47799, 0.48442, 0.49689, 0.52061, 0.59855,
1746 0.56752, 0.55201, 0.55826, 0.59808, 0.86202},
1747 {0.56226, 0.56428, 0.57074, 0.58324, 0.60696, 0.68483,
1748 0.65388, 0.63837, 0.64461, 0.68445, 0.94830},
1749 {0.64881, 0.65063, 0.65709, 0.66958, 0.69331, 0.77117,
1750 0.74023, 0.72472, 0.73098, 0.77079, 1.03486},
1751 {0.73506, 0.73698, 0.74344, 0.75596, 0.77964, 0.85751,
1752 0.82658, 0.81107, 0.81731, 0.85712, 1.12106},
1753 {0.82132, 0.82333, 0.82979, 0.84228, 0.86608, 0.94386,
1754 0.91293, 0.89742, 0.90367, 0.94335, 1.20737},
1755 {0.90767, 0.90968, 0.91614, 0.92863, 0.95236, 1.03021,
1756 0.99928, 0.98377, 0.99001, 1.02984, 1.29371},
1757 {0.99410, 0.99602, 1.00257, 1.01498, 1.03869, 1.11720,
1758 1.08563, 1.07011, 1.07637, 1.11621, 1.37873},
1759 {1.08036, 1.08240, 1.08884, 1.10138, 1.12504, 1.20301,
1760 1.17198, 1.15647, 1.16272, 1.20255, 1.46651},
1761 {1.16670, 1.16872, 1.17525, 1.18783, 1.21139, 1.28934,
1762 1.25833, 1.24281, 1.24909, 1.28889, 1.55275},
1763 {1.25307, 1.25510, 1.26153, 1.27404, 1.29773, 1.37584,
1764 1.34469, 1.32916, 1.33536, 1.37524, 1.63915},
1765 {1.33942, 1.34146, 1.34788, 1.36040, 1.38410, 1.46438,
1766 1.43105, 1.41537, 1.42176, 1.46158, 1.72538},
1767 {1.42579, 1.42782, 1.43458, 1.44674, 1.47043, 1.55085,
1768 1.51675, 1.50168, 1.50810, 1.54793, 1.81174},
1769 {1.51207, 1.51454, 1.52060, 1.53307, 1.55684, 1.63478,
1770 1.60336, 1.58820, 1.59446, 1.63414, 1.89814},
1771 {1.59856, 1.60047, 1.60693, 1.61942, 1.64317, 1.72257,
1772 1.69008, 1.67454, 1.68080, 1.72063, 1.98433},
1773 {1.68481, 1.68682, 1.69330, 1.70584, 1.72949, 1.80752,
1774 1.77643, 1.76089, 1.76716, 1.80692, 2.07069},
1775 {1.77117, 1.77319, 1.77969, 1.79260, 1.81583, 1.89376,
1776 1.86226, 1.84720, 1.85355, 1.89256, 2.15343},
1777 {1.85748, 1.85967, 1.86605, 1.87848, 1.90222, 1.98010,
1778 1.94913, 1.93271, 1.93981, 1.97968, 2.24355},
1779 {1.94386, 1.94587, 1.95233, 1.96484, 1.98854, 2.06646,
1780 2.03542, 2.01755, 2.02617, 2.06604, 2.32993},
1781 {2.03022, 2.03230, 2.03868, 2.05134, 2.07488, 2.15367,
1782 2.12178, 2.10391, 2.11252, 2.15432, 2.41623},
1783 {2.11656, 2.11857, 2.12505, 2.13772, 2.16147, 2.23919,
1784 2.20817, 2.19265, 2.20744, 2.23872, 2.49996},
1785 {2.20291, 2.20611, 2.21137, 2.22387, 2.24758, 2.32563,
1786 2.29450, 2.27901, 2.28525, 2.32507, 2.58897},
1787 {2.28922, 2.29172, 2.29774, 2.31345, 2.33400, 2.41287,
1788 2.38086, 2.36535, 2.37160, 2.40869, 2.67113},
1789 {2.37572, 2.37764, 2.38410, 2.39803, 2.42046, 2.49817,
1790 2.46721, 2.45171, 2.45794, 2.49505, 2.76061},
1791 {2.46190, 2.46396, 2.47043, 2.48340, 2.50665, 2.58453,
1792 2.55357, 2.53728, 2.54430, 2.58407, 2.84816},
1793 {2.54833, 2.55032, 2.55679, 2.56976, 2.59312, 2.67103,
1794 2.63993, 2.62364, 2.63062, 2.67040, 2.93444},
1795 {2.63456, 2.63660, 2.64304, 2.65555, 2.67938, 2.75739,
1796 2.72629, 2.71064, 2.71688, 2.75671, 3.01886}};
1797
1798 // Garfield simulation at UD = -1700V; vd = 1.299cm/microsec, <driftfield> = 590V/cm
1799 Float_t time1700[ktimebin][kZbin] =
1800 {{0.09167, 0.09201, 0.09302, 0.09471, 0.09712, 0.10029,
1801 0.10438, 0.10986, 0.11832, 0.13986, 0.37824},
1802 {0.06591, 0.06626, 0.06736, 0.06923, 0.07183, 0.07519,
1803 0.07944, 0.08511, 0.09378, 0.11603, 0.35625},
1804 {0.03946, 0.04003, 0.04170, 0.04433, 0.04777, 0.05189,
1805 0.05676, 0.06301, 0.07291, 0.09880, 0.34724},
1806 {0.01110, 0.01281, 0.01718, 0.02280, 0.02879, 0.03476,
1807 0.04096, 0.04910, 0.06417, 0.10582, 0.36861},
1808 {0.01115, 0.01294, 0.01721, 0.02276, 0.02862, 0.03447,
1809 0.04074, 0.04980, 0.06812, 0.11565, 0.37231},
1810 {0.03920, 0.03974, 0.04133, 0.04381, 0.04706, 0.05105,
1811 0.05603, 0.06299, 0.07618, 0.10860, 0.36646},
1812 {0.06498, 0.06529, 0.06634, 0.06808, 0.07055, 0.07395,
1813 0.07852, 0.08500, 0.09650, 0.12532, 0.37850},
1814 {0.09143, 0.09159, 0.09207, 0.09297, 0.09473, 0.00000,
1815 0.11102, 0.11809, 0.13245, 0.16627, 0.42496},
1816 {0.13646, 0.13750, 0.14112, 0.14926, 0.16806, 0.24960,
1817 0.20627, 0.19536, 0.20366, 0.24256, 0.50557},
1818 {0.20678, 0.20848, 0.21384, 0.22450, 0.24552, 0.32018,
1819 0.28740, 0.27477, 0.28196, 0.32128, 0.58475},
1820 {0.28287, 0.28461, 0.29020, 0.30108, 0.32224, 0.39467,
1821 0.36500, 0.35217, 0.35926, 0.39860, 0.66194},
1822 {0.35972, 0.36145, 0.36713, 0.37797, 0.39912, 0.47091,
1823 0.44212, 0.42925, 0.43632, 0.47563, 0.73892},
1824 {0.43667, 0.43841, 0.44413, 0.45494, 0.47607, 0.54780,
1825 0.51912, 0.50627, 0.51334, 0.55254, 0.81595},
1826 {0.51365, 0.51540, 0.52101, 0.53193, 0.55305, 0.62463,
1827 0.59617, 0.58328, 0.59035, 0.62965, 0.89303},
1828 {0.59064, 0.59240, 0.59801, 0.60893, 0.63009, 0.70169,
1829 0.67317, 0.66028, 0.66735, 0.70666, 0.96995},
1830 {0.66765, 0.66939, 0.67501, 0.68592, 0.70724, 0.77863,
1831 0.75016, 0.73728, 0.74435, 0.78366, 1.04696},
1832 {0.74464, 0.74636, 0.75200, 0.76293, 0.78405, 0.85561,
1833 0.82716, 0.81427, 0.82133, 0.86064, 1.12396},
1834 {0.82165, 0.82340, 0.82902, 0.83991, 0.86104, 0.93266,
1835 0.90414, 0.89128, 0.89834, 0.93763, 1.20100},
1836 {0.89863, 0.90042, 0.90659, 0.91705, 0.93805, 1.00960,
1837 0.98115, 0.96825, 0.97533, 1.01462, 1.27801},
1838 {0.97563, 0.97740, 0.98310, 0.99391, 1.01504, 1.08659,
1839 1.05814, 1.04526, 1.05233, 1.09163, 1.35503},
1840 {1.05276, 1.05451, 1.06002, 1.07090, 1.09099, 1.16357,
1841 1.13516, 1.12225, 1.12933, 1.16863, 1.43195},
1842 {1.12977, 1.13138, 1.13700, 1.14792, 1.16797, 1.24061,
1843 1.21212, 1.19926, 1.20626, 1.24554, 1.50900},
1844 {1.20664, 1.20839, 1.21400, 1.22490, 1.24606, 1.31772,
1845 1.28914, 1.27382, 1.28329, 1.32262, 1.58550},
1846 {1.28367, 1.28541, 1.29099, 1.30189, 1.32312, 1.39460,
1847 1.36612, 1.34924, 1.36030, 1.39961, 1.66310},
1848 {1.36064, 1.36249, 1.36799, 1.37896, 1.40004, 1.48030,
1849 1.44314, 1.43032, 1.43731, 1.47659, 1.73442},
1850 {1.43762, 1.43937, 1.44497, 1.45618, 1.47704, 1.54932,
1851 1.52012, 1.50725, 1.51430, 1.55357, 1.81708},
1852 {1.51462, 1.51937, 1.52203, 1.53316, 1.55403, 1.62572,
1853 1.59713, 1.58424, 1.59128, 1.63061, 1.89406},
1854 {1.59162, 1.59338, 1.59947, 1.60989, 1.63103, 1.70270,
1855 1.67411, 1.66124, 1.66799, 1.70759, 1.97103},
1856 {1.66874, 1.67037, 1.67597, 1.68687, 1.70814, 1.77969,
1857 1.75112, 1.73806, 1.74530, 1.78457, 2.04794},
1858 {1.74693, 1.74749, 1.75297, 1.76476, 1.78500, 1.85667,
1859 1.82811, 1.81504, 1.82101, 1.86161, 2.12492},
1860 {1.82260, 1.82437, 1.82995, 1.84174, 1.86202, 1.93372,
1861 1.90509, 1.89202, 1.89930, 1.93859, 2.20189},
1862 {1.89964, 1.90135, 1.90693, 1.91789, 1.93952, 2.01080,
1863 1.98207, 1.96921, 1.97628, 2.01384, 2.27887},
1864 {1.97662, 1.97917, 1.98611, 1.99487, 2.01601, 2.08778,
1865 2.05846, 2.04623, 2.05330, 2.09244, 2.35585},
1866 {2.05359, 2.05615, 2.06309, 2.07187, 2.09867, 2.16459,
1867 2.13610, 2.12322, 2.13029, 2.16942, 2.43199},
1868 {2.13063, 2.13233, 2.13795, 2.14886, 2.17008, 2.24199,
1869 2.21310, 2.20020, 2.20727, 2.24659, 2.50983},
1870 {2.20761, 2.20931, 2.21955, 2.22624, 2.24708, 2.32147,
1871 2.29009, 2.27725, 2.28276, 2.32359, 2.58680},
1872 {2.28459, 2.29108, 2.29202, 2.30286, 2.32007, 2.39559,
1873 2.36683, 2.35422, 2.36119, 2.40058, 2.66081},
1874 {2.36153, 2.36806, 2.36889, 2.37985, 2.40092, 2.47828,
1875 2.44381, 2.43099, 2.43819, 2.47750, 2.73779}};
1876
1877 // Garfield simulation at UD = -1800V; vd = 1.450cm/microsec, <driftfield> = 623V/cm
1878 Float_t time1800[ktimebin][kZbin] =
1879 {{0.09166, 0.09199, 0.09300, 0.09470, 0.09709, 0.10026,
1880 0.10434, 0.10983, 0.11831, 0.13987, 0.37802},
1881 {0.06585, 0.06623, 0.06735, 0.06921, 0.07180, 0.07520,
1882 0.07941, 0.08507, 0.09376, 0.11604, 0.35624},
1883 {0.03945, 0.04004, 0.04169, 0.04432, 0.04776, 0.05187,
1884 0.05674, 0.06300, 0.07290, 0.09884, 0.34704},
1885 {0.01108, 0.01287, 0.01717, 0.02280, 0.02880, 0.03476,
1886 0.04095, 0.04909, 0.06419, 0.10589, 0.36843},
1887 {0.01115, 0.01287, 0.01720, 0.02276, 0.02862, 0.03448,
1888 0.04073, 0.04973, 0.06799, 0.11535, 0.37224},
1889 {0.03918, 0.03975, 0.04134, 0.04382, 0.04707, 0.05105,
1890 0.05603, 0.06296, 0.07605, 0.10822, 0.36560},
1891 {0.06498, 0.06532, 0.06635, 0.06809, 0.07058, 0.07395,
1892 0.07855, 0.08495, 0.09632, 0.12488, 0.37730},
1893 {0.09130, 0.09160, 0.09199, 0.09300, 0.09472, 0.00000,
1894 0.11059, 0.11747, 0.13146, 0.16462, 0.42233},
1895 {0.13364, 0.13449, 0.13767, 0.14481, 0.16147, 0.23635,
1896 0.19706, 0.18812, 0.19704, 0.23520, 0.49749},
1897 {0.19698, 0.19844, 0.20311, 0.21236, 0.23082, 0.29920,
1898 0.26936, 0.25927, 0.26732, 0.30601, 0.56871},
1899 {0.26518, 0.26670, 0.27160, 0.28099, 0.29955, 0.36597,
1900 0.33885, 0.32858, 0.33653, 0.37524, 0.63801},
1901 {0.33441, 0.33553, 0.34040, 0.34987, 0.36841, 0.43428,
1902 0.40797, 0.39763, 0.40556, 0.44425, 0.70698},
1903 {0.40296, 0.40447, 0.40934, 0.41881, 0.43737, 0.50306,
1904 0.47695, 0.46662, 0.47455, 0.51329, 0.77600},
1905 {0.47296, 0.47344, 0.47830, 0.48779, 0.50632, 0.57200,
1906 0.54593, 0.53559, 0.54351, 0.58222, 0.84489},
1907 {0.54089, 0.54264, 0.54727, 0.55673, 0.57529, 0.64094,
1908 0.61490, 0.60457, 0.61249, 0.65118, 0.91394},
1909 {0.60987, 0.61138, 0.61624, 0.62573, 0.64428, 0.70989,
1910 0.68397, 0.67354, 0.68147, 0.72015, 0.98291},
1911 {0.67883, 0.68035, 0.68521, 0.69469, 0.71324, 0.77896,
1912 0.75287, 0.74251, 0.75043, 0.78912, 1.04458},
1913 {0.74780, 0.74932, 0.75421, 0.76367, 0.78221, 0.84785,
1914 0.82185, 0.81148, 0.81941, 0.85811, 1.12085},
1915 {0.81690, 0.81830, 0.82316, 0.83263, 0.85120, 0.91683,
1916 0.89077, 0.88045, 0.88837, 0.92707, 1.18976},
1917 {0.88574, 0.88726, 0.89228, 0.90198, 0.92017, 0.98578,
1918 0.95974, 0.94947, 0.95734, 0.99604, 1.25873},
1919 {0.95493, 0.95624, 0.96110, 0.97058, 0.98913, 1.05481,
1920 1.02873, 1.01839, 1.02631, 1.06503, 1.32772},
1921 {1.02392, 1.02524, 1.03008, 1.03955, 1.05810, 1.12378,
1922 1.09757, 1.08605, 1.09530, 1.13399, 1.39669},
1923 {1.09270, 1.09418, 1.09911, 1.10854, 1.12714, 1.19281,
1924 1.16502, 1.15633, 1.16427, 1.20271, 1.46574},
1925 {1.16168, 1.16323, 1.16801, 1.17772, 1.19604, 1.26190,
1926 1.23399, 1.22531, 1.23323, 1.27194, 1.53475},
1927 {1.23061, 1.23214, 1.23698, 1.24669, 1.26503, 1.33073,
1928 1.30461, 1.29428, 1.30220, 1.34091, 1.60372},
1929 {1.29960, 1.30110, 1.30596, 1.31544, 1.33398, 1.39962,
1930 1.37228, 1.36323, 1.37121, 1.40988, 1.67273},
1931 {1.36851, 1.37007, 1.37512, 1.38441, 1.40297, 1.46865,
1932 1.44256, 1.43222, 1.44017, 1.47878, 1.74155},
1933 {1.43752, 1.43904, 1.44773, 1.45338, 1.47220, 1.53759,
1934 1.51136, 1.50119, 1.50914, 1.54775, 1.81050},
1935 {1.50646, 1.50802, 1.51288, 1.52237, 1.54097, 1.60697,
1936 1.58049, 1.57018, 1.57811, 1.61678, 1.87947},
1937 {1.57545, 1.57720, 1.58185, 1.59134, 1.60996, 1.67787,
1938 1.64929, 1.63914, 1.64707, 1.68570, 1.94851},
1939 {1.64442, 1.64617, 1.65081, 1.66035, 1.67893, 1.74684,
1940 1.71826, 1.70745, 1.71604, 1.75310, 2.01748},
1941 {1.71337, 1.71513, 1.71978, 1.72932, 1.74645, 1.81346,
1942 1.78739, 1.77642, 1.78501, 1.82151, 2.08644},
1943 {1.78238, 1.78410, 1.78876, 1.79824, 1.81678, 1.88332,
1944 1.85639, 1.84262, 1.85397, 1.89270, 2.15533},
1945 {1.85135, 1.85306, 1.85778, 1.86728, 1.88580, 1.95615,
1946 1.92536, 1.91171, 1.92283, 1.96165, 2.22428},
1947 {1.92774, 1.92184, 1.92672, 1.93618, 1.95477, 2.02048,
1948 1.99427, 1.98068, 1.99192, 2.03062, 2.29338},
1949 {1.98929, 1.99081, 1.99567, 2.00515, 2.02373, 2.08987,
1950 2.06332, 2.05249, 2.05939, 2.09928, 2.36227},
1951 {2.05829, 2.05978, 2.06464, 2.07414, 2.09272, 2.15850,
1952 2.12928, 2.12194, 2.12987, 2.16825, 2.43083},
1953 {2.12726, 2.12869, 2.13360, 2.14425, 2.16160, 2.22872,
1954 2.20118, 2.19078, 2.19876, 2.23416, 2.50007}};
1955
1956 // Garfield simulation at UD = -1900V; vd = 1.610cm/microsec, <driftfield> = 655V/cm
1957 Float_t time1900[ktimebin][kZbin] =
1958 {{0.09166, 0.09198, 0.09298, 0.09467, 0.09707, 0.10023,
1959 0.10431, 0.10980, 0.11828, 0.13988, 0.37789},
1960 {0.06584, 0.06622, 0.06735, 0.06920, 0.07179, 0.07514,
1961 0.07938, 0.08505, 0.09374, 0.11606, 0.35599},
1962 {0.03945, 0.04002, 0.04169, 0.04432, 0.04775, 0.05185,
1963 0.05672, 0.06298, 0.07290, 0.09888, 0.34695},
1964 {0.01109, 0.01281, 0.01717, 0.02279, 0.02878, 0.03476,
1965 0.04094, 0.04909, 0.06421, 0.10597, 0.36823},
1966 {0.01115, 0.01287, 0.01720, 0.02294, 0.02862, 0.03448,
1967 0.04074, 0.04973, 0.06783, 0.11506, 0.37206},
1968 {0.03940, 0.03975, 0.04135, 0.04386, 0.04708, 0.05106,
1969 0.05604, 0.06293, 0.07592, 0.10787, 0.36484},
1970 {0.06500, 0.06534, 0.06638, 0.06811, 0.07060, 0.07413,
1971 0.07852, 0.08491, 0.09614, 0.12446, 0.37626},
1972 {0.09119, 0.09140, 0.09194, 0.09293, 0.09471, 0.00000,
1973 0.11013, 0.11685, 0.13050, 0.16302, 0.41991},
1974 {0.13111, 0.13190, 0.13466, 0.14091, 0.15554, 0.22409,
1975 0.18846, 0.18167, 0.19113, 0.22854, 0.48995},
1976 {0.18849, 0.18975, 0.19380, 0.20185, 0.21797, 0.28050,
1977 0.25368, 0.24575, 0.25446, 0.29249, 0.55442},
1978 {0.24995, 0.25125, 0.25563, 0.26366, 0.27986, 0.34065,
1979 0.31605, 0.30815, 0.31680, 0.35482, 0.61697},
1980 {0.31187, 0.31324, 0.31745, 0.32580, 0.34205, 0.40217,
1981 0.37825, 0.37031, 0.37897, 0.41696, 0.67890},
1982 {0.37401, 0.37531, 0.37955, 0.38777, 0.40395, 0.46408,
1983 0.44037, 0.43242, 0.44108, 0.47906, 0.74122},
1984 {0.43610, 0.43741, 0.44161, 0.44986, 0.46604, 0.52614,
1985 0.50248, 0.49452, 0.50316, 0.54116, 0.80326},
1986 {0.49820, 0.49988, 0.50372, 0.51196, 0.52814, 0.58822,
1987 0.56459, 0.55661, 0.56527, 0.60326, 0.86526},
1988 {0.56032, 0.56161, 0.56582, 0.57408, 0.59024, 0.65032,
1989 0.62670, 0.61872, 0.62737, 0.66537, 0.92749},
1990 {0.62240, 0.62371, 0.62792, 0.63624, 0.65236, 0.71241,
1991 0.68881, 0.68081, 0.68947, 0.72750, 0.98941},
1992 {0.68449, 0.68581, 0.69002, 0.69828, 0.71444, 0.77452,
1993 0.75089, 0.74295, 0.75157, 0.78957, 1.05157},
1994 {0.74660, 0.74790, 0.75212, 0.76036, 0.77654, 0.83748,
1995 0.81299, 0.80501, 0.81193, 0.85168, 1.11375},
1996 {0.80870, 0.81017, 0.81423, 0.82246, 0.83867, 0.89908,
1997 0.87509, 0.86660, 0.87577, 0.91376, 1.17586},
1998 {0.87080, 0.87233, 0.87632, 0.88458, 0.90074, 0.96083,
1999 0.93718, 0.92922, 0.93787, 0.97588, 1.23794},
2000 {0.93291, 0.93422, 0.93844, 0.94667, 0.96293, 1.02295,
2001 0.99929, 0.99127, 0.99997, 1.03797, 1.29995},
2002 {0.99500, 0.99645, 1.00308, 1.00877, 1.02497, 1.08504,
2003 1.06140, 1.05343, 1.06203, 1.10006, 1.36216},
2004 {1.05712, 1.05926, 1.06262, 1.07092, 1.08706, 1.14754,
2005 1.12350, 1.11550, 1.12417, 1.16218, 1.42427},
2006 {1.11921, 1.12059, 1.12473, 1.13297, 1.14916, 1.21140,
2007 1.18560, 1.17284, 1.18625, 1.22414, 1.48629},
2008 {1.18140, 1.18262, 1.18690, 1.19508, 1.21125, 1.27139,
2009 1.24164, 1.23495, 1.24838, 1.28634, 1.54852},
2010 {1.24340, 1.24473, 1.24901, 1.25732, 1.27336, 1.33358,
2011 1.30793, 1.30179, 1.31047, 1.34848, 1.61066},
2012 {1.30551, 1.30684, 1.31104, 1.32056, 1.33553, 1.39609,
2013 1.37004, 1.36392, 1.37045, 1.41057, 1.67259},
2014 {1.36755, 1.36892, 1.37315, 1.39148, 1.39755, 1.45820,
2015 1.43215, 1.42602, 1.43467, 1.47268, 1.73477},
2016 {1.42966, 1.43101, 1.43549, 1.45359, 1.45976, 1.52031,
2017 1.49601, 1.48811, 1.49677, 1.53477, 1.79691},
2018 {1.49180, 1.49321, 1.49760, 1.51570, 1.52175, 1.58185,
2019 1.55771, 1.55023, 1.55888, 1.59672, 1.85501},
2020 {1.55391, 1.55527, 1.55943, 1.57782, 1.58391, 1.64395,
2021 1.62008, 1.61233, 1.62085, 1.65883, 1.92091},
2022 {1.61599, 1.61732, 1.62154, 1.63993, 1.64612, 1.70608,
2023 1.68237, 1.67108, 1.68301, 1.72110, 1.97931},
2024 {1.67808, 1.67948, 1.68364, 1.70204, 1.70823, 1.76858,
2025 1.74404, 1.73539, 1.74512, 1.78321, 2.04522},
2026 {1.74019, 1.74152, 1.74573, 1.76415, 1.77015, 1.83040,
2027 1.80615, 1.79366, 1.80723, 1.84509, 2.10742},
2028 {1.80235, 1.80362, 1.80783, 1.82626, 1.83227, 1.89246,
2029 1.86795, 1.85405, 1.86938, 1.90720, 2.16953},
2030 {1.86442, 1.86572, 1.86994, 1.88837, 1.89438, 1.95445,
2031 1.93006, 1.92283, 1.93148, 1.96931, 2.23147},
2032 {1.92700, 1.92783, 1.93197, 1.95049, 1.95649, 2.01668,
2033 1.99217, 1.98486, 1.99352, 2.03143, 2.29358}};
2034
2035 // Garfield simulation at UD = -2000V; vd = 1.783cm/microsec, <driftfield> = 688V/cm
2036 Float_t time2000[ktimebin][kZbin] =
2037 {{0.09176, 0.09196, 0.09296, 0.09465, 0.09704, 0.10020,
2038 0.10427, 0.10977, 0.11825, 0.13988, 0.37774},
2039 {0.06583, 0.06620, 0.06735, 0.06918, 0.07177, 0.07513,
2040 0.07936, 0.08503, 0.09372, 0.11606, 0.35586},
2041 {0.03944, 0.04001, 0.04170, 0.04431, 0.04774, 0.05184,
2042 0.05670, 0.06296, 0.07291, 0.09893, 0.34680},
2043 {0.01108, 0.01281, 0.01719, 0.02279, 0.02879, 0.03474,
2044 0.04093, 0.04908, 0.06422, 0.10605, 0.36800},
2045 {0.01114, 0.01287, 0.01720, 0.02276, 0.02863, 0.03449,
2046 0.04073, 0.04970, 0.06774, 0.11478, 0.37179},
2047 {0.03925, 0.03977, 0.04135, 0.04386, 0.04711, 0.05108,
2048 0.05604, 0.06290, 0.07580, 0.10748, 0.36386},
2049 {0.06501, 0.06536, 0.06640, 0.06814, 0.07062, 0.07398,
2050 0.07852, 0.08487, 0.09598, 0.12405, 0.37519},
2051 {0.09109, 0.09127, 0.09188, 0.09292, 0.09472, 0.00000,
2052 0.10964, 0.11630, 0.12960, 0.16150, 0.41765},
2053 {0.12898, 0.12968, 0.13209, 0.13749, 0.15034, 0.21286,
2054 0.18088, 0.17590, 0.18591, 0.22254, 0.48315},
2055 {0.18122, 0.18227, 0.18574, 0.19263, 0.20674, 0.26376,
2056 0.23960, 0.23375, 0.24316, 0.28047, 0.54179},
2057 {0.23674, 0.23784, 0.24142, 0.24847, 0.26264, 0.31810,
2058 0.29602, 0.29008, 0.29944, 0.33675, 0.59795},
2059 {0.29279, 0.29382, 0.29742, 0.30448, 0.31865, 0.37364,
2060 0.35215, 0.34629, 0.35555, 0.39286, 0.65411},
2061 {0.34875, 0.34987, 0.35346, 0.36054, 0.37472, 0.42956,
2062 0.40825, 0.40229, 0.41167, 0.44894, 0.71033},
2063 {0.40484, 0.40594, 0.40954, 0.41660, 0.43077, 0.48560,
2064 0.46433, 0.45840, 0.46772, 0.50500, 0.76632},
2065 {0.46090, 0.46201, 0.46560, 0.47267, 0.48684, 0.54167,
2066 0.52041, 0.51449, 0.52382, 0.56108, 0.82227},
2067 {0.51698, 0.51809, 0.52173, 0.52874, 0.54291, 0.59776,
2068 0.57646, 0.57052, 0.57986, 0.61717, 0.87836},
2069 {0.57306, 0.57418, 0.57782, 0.58513, 0.59899, 0.65380,
2070 0.63255, 0.62661, 0.63594, 0.67325, 0.93460},
2071 {0.62912, 0.63024, 0.63383, 0.64103, 0.65506, 0.70988,
2072 0.68484, 0.68267, 0.69202, 0.72878, 0.99046},
2073 {0.68521, 0.68633, 0.68990, 0.69699, 0.71115, 0.76595,
2074 0.74468, 0.73872, 0.74814, 0.78538, 1.04674},
2075 {0.74127, 0.74239, 0.74605, 0.75303, 0.77022, 0.82204,
2076 0.80078, 0.79484, 0.80416, 0.84147, 1.10261},
2077 {0.79736, 0.79846, 0.80206, 0.80947, 0.82330, 0.87813,
2078 0.85688, 0.85087, 0.86023, 0.89752, 1.15874},
2079 {0.85342, 0.85454, 0.85815, 0.86519, 0.87936, 0.93417,
2080 0.91293, 0.90428, 0.91631, 0.95360, 1.20760},
2081 {0.90949, 0.91061, 0.91423, 0.92128, 0.93544, 0.99026,
2082 0.96807, 0.96305, 0.97239, 1.00967, 1.27078},
2083 {0.96556, 0.96669, 0.97111, 0.97734, 0.99151, 1.04664,
2084 1.02508, 1.01879, 1.02846, 1.06167, 1.32695},
2085 {1.02167, 1.02279, 1.02656, 1.03341, 1.04759, 1.10242,
2086 1.08115, 1.07003, 1.08453, 1.12184, 1.38304},
2087 {1.07776, 1.07883, 1.08242, 1.08950, 1.10384, 1.16422,
2088 1.13725, 1.13133, 1.14061, 1.17793, 1.43910},
2089 {1.13379, 1.13492, 1.13864, 1.14567, 1.15973, 1.21455,
2090 1.19323, 1.18734, 1.19668, 1.23401, 1.49528},
2091 {1.18988, 1.19098, 1.19457, 1.20164, 1.21582, 1.27064,
2092 1.24937, 1.24044, 1.25275, 1.29004, 1.55137},
2093 {1.24592, 1.24706, 1.25087, 1.25773, 1.27188, 1.32670,
2094 1.30544, 1.29953, 1.30883, 1.34613, 1.60743},
2095 {1.30202, 1.30313, 1.30673, 1.31381, 1.32797, 1.38278,
2096 1.36151, 1.35167, 1.36490, 1.40221, 1.66306},
2097 {1.35809, 1.35921, 1.36282, 1.36986, 1.38403, 1.43888,
2098 1.41760, 1.41174, 1.42083, 1.45830, 1.71915},
2099 {1.41419, 1.41528, 1.41890, 1.42595, 1.44011, 1.49496,
2100 1.47368, 1.46769, 1.47706, 1.51436, 1.77523},
2101 {1.47131, 1.47141, 1.47494, 1.48850, 1.49620, 1.55137,
2102 1.52977, 1.51820, 1.53315, 1.57042, 1.83158},
2103 {1.52635, 1.52750, 1.53103, 1.53814, 1.55228, 1.60736,
2104 1.58503, 1.57986, 1.58920, 1.62649, 1.88767},
2105 {1.58418, 1.58355, 1.58711, 1.59526, 1.60833, 1.66316,
2106 1.63345, 1.63261, 1.64556, 1.68204, 1.94359},
2107 {1.64027, 1.63958, 1.64489, 1.65024, 1.66443, 1.71925,
2108 1.69794, 1.69201, 1.70143, 1.73865, 1.99968},
2109 {1.69450, 1.69566, 1.69940, 1.70697, 1.71841, 1.77819,
2110 1.75396, 1.74814, 1.75743, 1.79083, 2.05427},
2111 {1.75054, 1.75221, 1.75527, 1.76306, 1.77662, 1.83428,
2112 1.81006, 1.81173, 1.81345, 1.85076, 2.10289}};
2113
2114 // Garfield simulation at UD = -2100V; vd = 1.959cm/microsec, <driftfield> = 720V/cm
2115 Float_t time2100[ktimebin][kZbin] =
2116 {{0.09160, 0.09194, 0.09294, 0.09462, 0.09701, 0.10017,
2117 0.10424, 0.10974, 0.11823, 0.13988, 0.37762},
2118 {0.06585, 0.06619, 0.06731, 0.06916, 0.07174, 0.07509,
2119 0.07933, 0.08500, 0.09370, 0.11609, 0.35565},
2120 {0.03960, 0.04001, 0.04171, 0.04430, 0.04774, 0.05182,
2121 0.05668, 0.06294, 0.07291, 0.09896, 0.34676},
2122 {0.01109, 0.01280, 0.01716, 0.02279, 0.02876, 0.03474,
2123 0.04096, 0.04908, 0.06424, 0.10612, 0.36790},
2124 {0.01114, 0.01285, 0.01719, 0.02287, 0.02863, 0.03449,
2125 0.04073, 0.04964, 0.06759, 0.11446, 0.37162},
2126 {0.03922, 0.03977, 0.04146, 0.04386, 0.04711, 0.05109,
2127 0.05605, 0.06287, 0.07575, 0.10713, 0.36298},
2128 {0.06504, 0.06538, 0.06641, 0.06818, 0.07064, 0.07426,
2129 0.07852, 0.08483, 0.09581, 0.12363, 0.37424},
2130 {0.09103, 0.09129, 0.09186, 0.09291, 0.09476, 0.00000,
2131 0.10923, 0.11578, 0.12873, 0.16005, 0.41525},
2132 {0.12723, 0.12777, 0.12988, 0.13458, 0.14579, 0.20264,
2133 0.17421, 0.17078, 0.18132, 0.21708, 0.47699},
2134 {0.17508, 0.17601, 0.17897, 0.18487, 0.19698, 0.24881,
2135 0.22737, 0.22337, 0.23348, 0.27000, 0.53032},
2136 {0.22571, 0.22663, 0.22969, 0.23570, 0.24787, 0.29826,
2137 0.27871, 0.27462, 0.28471, 0.32122, 0.58166},
2138 {0.27664, 0.27759, 0.28067, 0.28669, 0.29891, 0.34898,
2139 0.32982, 0.32570, 0.33576, 0.37229, 0.63268},
2140 {0.32766, 0.32862, 0.33170, 0.33778, 0.34988, 0.39973,
2141 0.38088, 0.37675, 0.38680, 0.42333, 0.68159},
2142 {0.37872, 0.37966, 0.38275, 0.38875, 0.40093, 0.45073,
2143 0.43192, 0.42780, 0.43786, 0.47438, 0.73480},
2144 {0.42974, 0.43070, 0.43378, 0.43982, 0.45196, 0.50177,
2145 0.48297, 0.47884, 0.48889, 0.52544, 0.78581},
2146 {0.48081, 0.48175, 0.48482, 0.49084, 0.50302, 0.55290,
2147 0.53398, 0.52988, 0.53994, 0.57647, 0.83687},
2148 {0.53645, 0.53295, 0.53586, 0.54188, 0.55408, 0.60398,
2149 0.58504, 0.58092, 0.59100, 0.62768, 0.88773},
2150 {0.58345, 0.58409, 0.58690, 0.59292, 0.60510, 0.65562,
2151 0.63609, 0.63197, 0.64203, 0.67856, 0.93907},
2152 {0.63397, 0.63490, 0.63795, 0.64403, 0.65613, 0.70612,
2153 0.68714, 0.68301, 0.69294, 0.72955, 0.99000},
2154 {0.68496, 0.68592, 0.68899, 0.69504, 0.70733, 0.75708,
2155 0.73818, 0.73405, 0.74412, 0.78064, 1.04100},
2156 {0.73600, 0.73696, 0.74003, 0.74624, 0.75828, 0.80805,
2157 0.78904, 0.78512, 0.79517, 0.83152, 1.09205},
2158 {0.78709, 0.78801, 0.79108, 0.79709, 0.80931, 0.85906,
2159 0.84027, 0.83614, 0.84621, 0.88269, 1.14058},
2160 {0.83808, 0.83905, 0.84215, 0.84816, 0.86031, 0.91011,
2161 0.89139, 0.88718, 0.89725, 0.93377, 1.19413},
2162 {0.88916, 0.89010, 0.89320, 0.89920, 0.91136, 0.96117,
2163 0.94235, 0.93822, 0.94828, 0.98480, 1.24538},
2164 {0.94036, 0.94113, 0.94422, 0.95023, 0.96241, 1.01220,
2165 0.99310, 0.98927, 0.99933, 1.03585, 1.29629},
2166 {0.99139, 0.99220, 0.99525, 1.00127, 1.01344, 1.06324,
2167 1.04451, 1.04033, 1.04836, 1.08690, 1.34727},
2168 {1.04261, 1.04325, 1.04628, 1.05232, 1.06448, 1.12090,
2169 1.09546, 1.09136, 1.10142, 1.13795, 1.39831},
2170 {1.09331, 1.09429, 1.09742, 1.10336, 1.11557, 1.16547,
2171 1.14658, 1.13642, 1.15247, 1.18898, 1.44936},
2172 {1.14436, 1.14539, 1.14847, 1.15443, 1.16662, 1.21794,
2173 1.19763, 1.19329, 1.20349, 1.23956, 1.50043},
2174 {1.19533, 1.19651, 1.19943, 1.20548, 1.21666, 1.26753,
2175 1.24862, 1.24434, 1.25455, 1.29106, 1.55142},
2176 {1.24638, 1.24756, 1.25046, 1.25648, 1.26764, 1.31858,
2177 1.29967, 1.29538, 1.30499, 1.34211, 1.60250},
2178 {1.29747, 1.29847, 1.30175, 1.30753, 1.31869, 1.36969,
2179 1.35069, 1.34656, 1.35663, 1.39316, 1.64644},
2180 {1.35537, 1.34952, 1.35255, 1.35869, 1.36973, 1.41387,
2181 1.40173, 1.39761, 1.40768, 1.44396, 1.70238},
2182 {1.39956, 1.40056, 1.40380, 1.40961, 1.42178, 1.46492,
2183 1.45278, 1.45423, 1.45872, 1.49522, 1.75557},
2184 {1.45080, 1.45159, 1.45463, 1.46109, 1.47287, 1.52263,
2185 1.50382, 1.50050, 1.50977, 1.54502, 1.80670},
2186 {1.50165, 1.50264, 1.50570, 1.51214, 1.52233, 1.57370,
2187 1.55484, 1.55155, 1.56080, 1.59731, 1.85778},
2188 {1.55269, 1.55364, 1.55675, 1.56274, 1.57491, 1.62598,
2189 1.60590, 1.60259, 1.61185, 1.64836, 1.90883},
2190 {1.60368, 1.60469, 1.60779, 1.61373, 1.62596, 1.67738,
2191 1.65651, 1.65249, 1.66290, 1.69936, 1.95959}};
2192
2193 // Garfield simulation at UD = -2200V; vd = 2.134cm/microsec, <driftfield> = 753V/cm
2194 Float_t time2200[ktimebin][kZbin] =
2195 {{0.09162, 0.09194, 0.09292, 0.09460, 0.09702, 0.10014,
2196 0.10421, 0.10971, 0.11820, 0.13990, 0.37745},
2197 {0.06581, 0.06618, 0.06730, 0.06915, 0.07173, 0.07507,
2198 0.07931, 0.08497, 0.09368, 0.11609, 0.35560},
2199 {0.03947, 0.04001, 0.04167, 0.04429, 0.04772, 0.05183,
2200 0.05667, 0.06293, 0.07292, 0.09900, 0.34673},
2201 {0.01111, 0.01280, 0.01716, 0.02279, 0.02876, 0.03473,
2202 0.04091, 0.04907, 0.06426, 0.10620, 0.36766},
2203 {0.01113, 0.01285, 0.01719, 0.02276, 0.02863, 0.03452,
2204 0.04076, 0.04960, 0.06745, 0.11419, 0.37139},
2205 {0.03923, 0.03978, 0.04137, 0.04387, 0.04713, 0.05110,
2206 0.05605, 0.06284, 0.07551, 0.10677, 0.36210},
2207 {0.06505, 0.06540, 0.06644, 0.06820, 0.07069, 0.07401,
2208 0.07852, 0.08479, 0.09565, 0.12325, 0.37313},
2209 {0.09107, 0.09127, 0.09181, 0.09291, 0.09474, 0.00000,
2210 0.10883, 0.11528, 0.12789, 0.15865, 0.41313},
2211 {0.12559, 0.12622, 0.12800, 0.13206, 0.14166, 0.19331,
2212 0.16832, 0.16632, 0.17724, 0.21218, 0.47098},
2213 {0.16992, 0.17070, 0.17325, 0.17831, 0.18871, 0.23557,
2214 0.21690, 0.21451, 0.22514, 0.26082, 0.52034},
2215 {0.21640, 0.21722, 0.21987, 0.22500, 0.23540, 0.28097,
2216 0.26399, 0.26154, 0.27214, 0.30784, 0.56734},
2217 {0.26318, 0.26400, 0.26679, 0.27181, 0.28220, 0.32739,
2218 0.31090, 0.30842, 0.31902, 0.35474, 0.61415},
2219 {0.31001, 0.31085, 0.31348, 0.31866, 0.32903, 0.37412,
2220 0.35777, 0.35546, 0.36588, 0.40159, 0.66103},
2221 {0.35687, 0.35769, 0.36033, 0.36556, 0.37588, 0.42094,
2222 0.40523, 0.40214, 0.41273, 0.44841, 0.70785},
2223 {0.40372, 0.40457, 0.40723, 0.41234, 0.42273, 0.46778,
2224 0.45148, 0.44903, 0.45961, 0.49526, 0.75486},
2225 {0.45062, 0.45139, 0.45404, 0.45966, 0.46958, 0.51470,
2226 0.49833, 0.49584, 0.50644, 0.54211, 0.80160},
2227 {0.49742, 0.49825, 0.50088, 0.50605, 0.51644, 0.56148,
2228 0.54518, 0.54270, 0.55330, 0.58897, 0.84854},
2229 {0.54427, 0.54510, 0.54774, 0.55290, 0.56329, 0.60846,
2230 0.59203, 0.58955, 0.60014, 0.63578, 0.89528},
2231 {0.59119, 0.59199, 0.59471, 0.59975, 0.61014, 0.65533,
2232 0.63889, 0.63636, 0.64699, 0.68269, 0.94197},
2233 {0.63866, 0.63880, 0.64145, 0.64664, 0.65701, 0.70639,
2234 0.68574, 0.68325, 0.69385, 0.72949, 0.98900},
2235 {0.68483, 0.68566, 0.68831, 0.69347, 0.70386, 0.74890,
2236 0.73260, 0.73010, 0.74069, 0.77638, 1.03320},
2237 {0.73168, 0.73255, 0.73515, 0.74031, 0.75072, 0.79576,
2238 0.77117, 0.77501, 0.78755, 0.82318, 1.08006},
2239 {0.77854, 0.78310, 0.78200, 0.79525, 0.79756, 0.84281,
2240 0.81803, 0.82393, 0.83441, 0.87008, 1.12692},
2241 {0.82541, 0.82642, 0.82916, 0.83528, 0.84442, 0.89086,
2242 0.87315, 0.87079, 0.88125, 0.91694, 1.17648},
2243 {0.87226, 0.87308, 0.87602, 0.88086, 0.89128, 0.93772,
2244 0.92001, 0.91751, 0.92811, 0.95587, 1.22328},
2245 {0.91921, 0.91994, 0.92256, 0.92772, 0.94713, 0.98566,
2246 0.96690, 0.96436, 0.97495, 1.01064, 1.26882},
2247 {0.96790, 0.96679, 0.96941, 0.97463, 0.99399, 1.03001,
2248 1.01376, 1.01112, 1.02181, 1.05749, 1.31568},
2249 {1.01278, 1.01390, 1.01674, 1.02147, 1.03182, 1.07820,
2250 1.06056, 1.05798, 1.06867, 1.10433, 1.36390},
2251 {1.05964, 1.06076, 1.06331, 1.06833, 1.07870, 1.13297,
2252 1.10742, 1.10520, 1.11543, 1.15120, 1.41069},
2253 {1.10664, 1.10762, 1.10997, 1.11519, 1.12556, 1.17531,
2254 1.15427, 1.14620, 1.16229, 1.19805, 1.45758},
2255 {1.15352, 1.15421, 1.15683, 1.16218, 1.17242, 1.21910,
2256 1.20035, 1.19863, 1.20579, 1.24473, 1.50412},
2257 {1.20019, 1.20115, 1.20369, 1.20892, 1.21928, 1.26913,
2258 1.24721, 1.24549, 1.25605, 1.29159, 1.54920},
2259 {1.24707, 1.24846, 1.25052, 1.25602, 1.26608, 1.31558,
2260 1.29448, 1.29232, 1.30293, 1.33675, 1.59798},
2261 {1.29391, 1.29475, 1.29738, 1.30255, 1.31294, 1.36244,
2262 1.34167, 1.33918, 1.34979, 1.38229, 1.64496},
2263 {1.34078, 1.34304, 1.34424, 1.35565, 1.35980, 1.40930,
2264 1.38853, 1.38229, 1.39664, 1.42863, 1.69162},
2265 {1.38762, 1.38847, 1.39110, 1.39627, 1.40666, 1.45183,
2266 1.43539, 1.43289, 1.44348, 1.47549, 1.73876},
2267 {1.43524, 1.43533, 1.43796, 1.44310, 1.45371, 1.49305,
2268 1.48224, 1.47941, 1.49034, 1.52601, 1.78552},
2269 {1.48122, 1.48219, 1.48482, 1.48991, 1.50030, 1.53991,
2270 1.52898, 1.52653, 1.53653, 1.57282, 1.82386}};
2271
2272 if (fTimeStructInfo.fTimeStruct1) delete [] fTimeStructInfo.fTimeStruct1;
2273 fTimeStructInfo.fTimeStruct1 = new Float_t[ktimebin*kZbin];
2274
2275 if (fTimeStructInfo.fTimeStruct2) delete [] fTimeStructInfo.fTimeStruct2;
2276 fTimeStructInfo.fTimeStruct2 = new Float_t[ktimebin*kZbin];
2277
2278 for (Int_t ctrt = 0; ctrt<ktimebin; ctrt++) {
2279 for (Int_t ctrz = 0; ctrz<kZbin; ctrz++) {
2280 if ( vdrift > fVDsmp[6] ) {
2281 fTimeStructInfo.fTimeStruct1[ctrt+ctrz*ktimebin] = time2100[ctrt][ctrz];
2282 fTimeStructInfo.fTimeStruct2[ctrt+ctrz*ktimebin] = time2200[ctrt][ctrz];
2283 fTimeStructInfo.fVDlo = fVDsmp[6];
2284 fTimeStructInfo.fVDhi = fVDsmp[7];
2285 } else if ( vdrift > fVDsmp[5] ) {
2286 fTimeStructInfo.fTimeStruct1[ctrt+ctrz*ktimebin] = time2000[ctrt][ctrz];
2287 fTimeStructInfo.fTimeStruct2[ctrt+ctrz*ktimebin] = time2100[ctrt][ctrz];
2288 fTimeStructInfo.fVDlo = fVDsmp[5];
2289 fTimeStructInfo.fVDhi = fVDsmp[6];
2290 } else if ( vdrift > fVDsmp[4] ) {
2291 fTimeStructInfo.fTimeStruct1[ctrt+ctrz*ktimebin] = time1900[ctrt][ctrz];
2292 fTimeStructInfo.fTimeStruct2[ctrt+ctrz*ktimebin] = time2000[ctrt][ctrz];
2293 fTimeStructInfo.fVDlo = fVDsmp[4];
2294 fTimeStructInfo.fVDhi = fVDsmp[5];
2295 } else if ( vdrift > fVDsmp[3] ) {
2296 fTimeStructInfo.fTimeStruct1[ctrt+ctrz*ktimebin] = time1800[ctrt][ctrz];
2297 fTimeStructInfo.fTimeStruct2[ctrt+ctrz*ktimebin] = time1900[ctrt][ctrz];
2298 fTimeStructInfo.fVDlo = fVDsmp[3];
2299 fTimeStructInfo.fVDhi = fVDsmp[4];
2300 } else if ( vdrift > fVDsmp[2] ) {
2301 fTimeStructInfo.fTimeStruct1[ctrt+ctrz*ktimebin] = time1700[ctrt][ctrz];
2302 fTimeStructInfo.fTimeStruct2[ctrt+ctrz*ktimebin] = time1800[ctrt][ctrz];
2303 fTimeStructInfo.fVDlo = fVDsmp[2];
2304 fTimeStructInfo.fVDhi = fVDsmp[3];
2305 } else if ( vdrift > fVDsmp[1] ) {
2306 fTimeStructInfo.fTimeStruct1[ctrt+ctrz*ktimebin] = time1600[ctrt][ctrz];
2307 fTimeStructInfo.fTimeStruct2[ctrt+ctrz*ktimebin] = time1700[ctrt][ctrz];
2308 fTimeStructInfo.fVDlo = fVDsmp[1];
2309 fTimeStructInfo.fVDhi = fVDsmp[2];
2310 } else if ( vdrift > (fVDsmp[0] - 1.e-5) ) {
2311 fTimeStructInfo.fTimeStruct1[ctrt+ctrz*ktimebin] = time1500[ctrt][ctrz];
2312 fTimeStructInfo.fTimeStruct2[ctrt+ctrz*ktimebin] = time1600[ctrt][ctrz];
2313 fTimeStructInfo.fVDlo = fVDsmp[0];
2314 fTimeStructInfo.fVDhi = fVDsmp[1];
2315 }
2316 }
2317 }
2318}
2319
2320//_____________________________________________________________________________
2321void AliTRDdigitizer::RecalcDiffusion(Float_t vdrift)
2322{
2323 if (vdrift == fDiffusionInfo.fLastVdrift)
2324 return;
7754cd1f 2325
9afbd7de 2326 AliTRDSimParam* simParam = AliTRDSimParam::Instance();
2327 if (!simParam) {
2328 AliError("Could not get simulation parameters\n");
3551db50 2329 return;
2330 }
2331
2332 AliTRDCommonParam* commonParam = AliTRDCommonParam::Instance();
9afbd7de 2333 if (!commonParam) {
2334 AliError("Could not get common parameters\n");
3551db50 2335 return;
2336 }
2337
9afbd7de 2338 AliTRDcalibDB* calibration = AliTRDcalibDB::Instance();
2339 if (!calibration) {
2340 AliError("Could not get calibration object\n");
3551db50 2341 return;
2342 }
2343
2344 Float_t field = commonParam->GetField();
2345 fDiffusionInfo.fLastVdrift = vdrift;
2346
9afbd7de 2347 // DiffusionL
3551db50 2348 {
2349 const Int_t kNb = 5;
2350 Float_t p0[kNb] = { 0.007440, 0.007493, 0.007513, 0.007672, 0.007831 };
2351 Float_t p1[kNb] = { 0.019252, 0.018912, 0.018636, 0.018012, 0.017343 };
2352 Float_t p2[kNb] = { -0.005042, -0.004926, -0.004867, -0.004650, -0.004424 };
2353 Float_t p3[kNb] = { 0.000195, 0.000189, 0.000195, 0.000182, 0.000169 };
2354
2355 Int_t ib = ((Int_t) (10 * (field - 0.15)));
2356 ib = TMath::Max( 0,ib);
2357 ib = TMath::Min(kNb,ib);
2358
2359 fDiffusionInfo.fDiffusionL = p0[ib]
9afbd7de 2360 + p1[ib] * vdrift
2361 + p2[ib] * vdrift*vdrift
2362 + p3[ib] * vdrift*vdrift*vdrift;
3551db50 2363 }
2364
9afbd7de 2365 // DiffusionT
3551db50 2366 {
2367 const Int_t kNb = 5;
2368 Float_t p0[kNb] = { 0.009550, 0.009599, 0.009674, 0.009757, 0.009850 };
2369 Float_t p1[kNb] = { 0.006667, 0.006539, 0.006359, 0.006153, 0.005925 };
2370 Float_t p2[kNb] = { -0.000853, -0.000798, -0.000721, -0.000635, -0.000541 };
2371 Float_t p3[kNb] = { 0.000131, 0.000122, 0.000111, 0.000098, 0.000085 };
2372
2373 Int_t ib = ((Int_t) (10 * (field - 0.15)));
2374 ib = TMath::Max( 0,ib);
2375 ib = TMath::Min(kNb,ib);
2376
2377 fDiffusionInfo.fDiffusionT = p0[ib]
9afbd7de 2378 + p1[ib] * vdrift
2379 + p2[ib] * vdrift*vdrift
2380 + p3[ib] * vdrift*vdrift*vdrift;
3551db50 2381 }
2382
9afbd7de 2383 // OmegaTau
3551db50 2384 fDiffusionInfo.fOmegaTau = calibration->GetOmegaTau(vdrift);
2385
9afbd7de 2386 // Lorentzfactor
3551db50 2387 {
2388 if (commonParam->ExBOn()) {
2389 fDiffusionInfo.fLorentzFactor = 1.0 / (1.0 + fDiffusionInfo.fOmegaTau*fDiffusionInfo.fOmegaTau);
2390 }
2391 else {
2392 fDiffusionInfo.fLorentzFactor = 1.0;
2393 }
2394 }
9afbd7de 2395
3551db50 2396}
2397
2398//_____________________________________________________________________________
2399Float_t AliTRDdigitizer::GetDiffusionL(Float_t vdrift)
2400{
2401 //
2402 // Returns the longitudinal diffusion coefficient for a given drift
2403 // velocity <vd> and a B-field <b> for Xe/CO2 (15%).
2404 // The values are according to a GARFIELD simulation.
2405 //
2406
2407 RecalcDiffusion(vdrift);
2408 return fDiffusionInfo.fDiffusionL;
9afbd7de 2409
3551db50 2410}
2411
2412//_____________________________________________________________________________
2413Float_t AliTRDdigitizer::GetDiffusionT(Float_t vdrift)
2414{
2415 //
2416 // Returns the transverse diffusion coefficient for a given drift
2417 // velocity <vd> and a B-field <b> for Xe/CO2 (15%).
2418 // The values are according to a GARFIELD simulation.
2419 //
2420
2421 RecalcDiffusion(vdrift);
2422 return fDiffusionInfo.fDiffusionT;
9afbd7de 2423
3551db50 2424}
2425
2426//_____________________________________________________________________________
2427Int_t AliTRDdigitizer::Diffusion(Float_t vdrift, Double_t driftlength, Double_t *xyz)
2428{
2429 //
2430 // Applies the diffusion smearing to the position of a single electron
2431 //
2432
2433 RecalcDiffusion(vdrift);
2434
2435 Float_t driftSqrt = TMath::Sqrt(driftlength);
9afbd7de 2436 Float_t sigmaT = driftSqrt * fDiffusionInfo.fDiffusionT;
2437 Float_t sigmaL = driftSqrt * fDiffusionInfo.fDiffusionL;
3551db50 2438 xyz[0] = gRandom->Gaus(xyz[0], sigmaL * GetLorentzFactor(vdrift));
2439 xyz[1] = gRandom->Gaus(xyz[1], sigmaT * GetLorentzFactor(vdrift));
2440 xyz[2] = gRandom->Gaus(xyz[2], sigmaT);
2441
2442 return 1;
9afbd7de 2443
3551db50 2444}
2445
2446//_____________________________________________________________________________
2447Float_t AliTRDdigitizer::GetLorentzFactor(Float_t vd)
2448{
9afbd7de 2449 //
2450 // Returns the recalculated Lorentz factor
2451 //
2452
3551db50 2453 RecalcDiffusion(vd);
2454 return fDiffusionInfo.fLorentzFactor;
9afbd7de 2455
3551db50 2456}
2457
2458//_____________________________________________________________________________
2459Int_t AliTRDdigitizer::ExB(Float_t vdrift, Double_t driftlength, Double_t *xyz)
2460{
2461 //
2462 // Applies E x B effects to the position of a single electron
2463 //
2464
2465 RecalcDiffusion(vdrift);
2466
2467 xyz[0] = xyz[0];
2468 xyz[1] = xyz[1] + fDiffusionInfo.fOmegaTau * driftlength;
2469 xyz[2] = xyz[2];
2470
2471 return 1;
9afbd7de 2472
3551db50 2473}