Coding convention: few corrections
[u/mrichter/AliRoot.git] / TRD / AliTRDcalibDB.cxx
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3551db50 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
16/* $Id$ */
17
18///////////////////////////////////////////////////////////////////////////////
19// //
20// Class providing the calibration parameters by accessing the CDB //
21// //
2745a409 22// Request an instance with AliTRDcalibDB::Instance() //
3551db50 23// If a new event is processed set the event number with SetRun //
24// Then request the calibration data //
25// //
2745a409 26// Author: //
27// Jan Fiete Grosse-Oetringhaus (Jan.Fiete.Grosse-Oetringhaus@cern.ch) //
28// //
3551db50 29///////////////////////////////////////////////////////////////////////////////
30
090026bf 31#include <TMath.h>
3551db50 32#include <TRandom.h>
33
2745a409 34#include "AliCDBManager.h"
35#include "AliCDBStorage.h"
36#include "AliCDBEntry.h"
37#include "AliLog.h"
3551db50 38
39#include "AliTRDcalibDB.h"
40#include "AliTRDgeometry.h"
41#include "AliTRDpadPlane.h"
42#include "AliTRDCommonParam.h"
43
7754cd1f 44#include "Cal/AliTRDCalROC.h"
7754cd1f 45#include "Cal/AliTRDCalPad.h"
46#include "Cal/AliTRDCalDet.h"
47#include "Cal/AliTRDCalGlobals.h"
48#include "Cal/AliTRDCalPIDLQ.h"
49#include "Cal/AliTRDCalMonitoring.h"
7754cd1f 50#include "Cal/AliTRDCalChamberStatus.h"
7754cd1f 51#include "Cal/AliTRDCalPadStatus.h"
52#include "Cal/AliTRDCalSingleChamberStatus.h"
3551db50 53
54ClassImp(AliTRDcalibDB)
55
2745a409 56AliTRDcalibDB *AliTRDcalibDB::fgInstance = 0;
57Bool_t AliTRDcalibDB::fgTerminated = kFALSE;
3551db50 58
59//_ singleton implementation __________________________________________________
60AliTRDcalibDB* AliTRDcalibDB::Instance()
61{
62 //
63 // Singleton implementation
64 // Returns an instance of this class, it is created if neccessary
63a700c6 65 //
3551db50 66
6d50f529 67 if (fgTerminated != kFALSE) {
3551db50 68 return 0;
6d50f529 69 }
3551db50 70
6d50f529 71 if (fgInstance == 0) {
3551db50 72 fgInstance = new AliTRDcalibDB();
6d50f529 73 }
e254cad1 74
3551db50 75 return fgInstance;
4e009ce4 76
3551db50 77}
78
2745a409 79//_____________________________________________________________________________
3551db50 80void AliTRDcalibDB::Terminate()
81{
82 //
83 // Singleton implementation
6bf5f0ce 84 // Deletes the instance of this class and sets the terminated flag,
85 // instances cannot be requested anymore
3551db50 86 // This function can be called several times.
87 //
88
89 fgTerminated = kTRUE;
90
6d50f529 91 if (fgInstance != 0) {
3551db50 92 delete fgInstance;
93 fgInstance = 0;
94 }
2745a409 95
3551db50 96}
97
98//_____________________________________________________________________________
99AliTRDcalibDB::AliTRDcalibDB()
2745a409 100 :TObject()
101 ,fRun(-1)
6d50f529 102 ,fPRFsmp(0)
103 ,fPRFbin(0)
104 ,fPRFlo(0)
105 ,fPRFhi(0)
106 ,fPRFwid(0)
107 ,fPRFpad(0)
3551db50 108{
109 //
2745a409 110 // Default constructor
3551db50 111 //
2745a409 112 // TODO Default runnumber is set to 0, this should be changed later
113 // to an invalid value (e.g. -1) to prevent
3551db50 114 // TODO invalid calibration data to be used.
2745a409 115 //
116
95867fd1 117 for (Int_t i = 0; i < kCDBCacheSize; ++i) {
2745a409 118 fCDBCache[i] = 0;
119 fCDBEntries[i] = 0;
120 }
3551db50 121
2745a409 122 // Create the sampled PRF
123 SamplePRF();
d4c6453d 124
2745a409 125}
126
127//_____________________________________________________________________________
128AliTRDcalibDB::AliTRDcalibDB(const AliTRDcalibDB &c)
129 :TObject(c)
6d50f529 130 ,fRun(-1)
131 ,fPRFsmp(0)
132 ,fPRFbin(0)
133 ,fPRFlo(0)
134 ,fPRFhi(0)
135 ,fPRFwid(0)
136 ,fPRFpad(0)
2745a409 137{
138 //
139 // Copy constructor (not that it make any sense for a singleton...)
140 //
141
95867fd1 142 for (Int_t i = 0; i < kCDBCacheSize; ++i) {
2745a409 143 fCDBCache[i] = 0;
3551db50 144 fCDBEntries[i] = 0;
145 }
6a739e92 146
147 // Create the sampled PRF
148 SamplePRF();
2745a409 149
150}
151
152//_____________________________________________________________________________
153AliTRDcalibDB &AliTRDcalibDB::operator=(const AliTRDcalibDB &c)
154{
155 //
156 // Assignment operator (same as above ...)
157 //
158
159 if (this != &c) {
160 AliFatal("No assignment operator defined");
161 }
4e009ce4 162
2745a409 163 return *this;
164
acba9bad 165}
3551db50 166
167//_____________________________________________________________________________
168AliTRDcalibDB::~AliTRDcalibDB()
169{
170 //
171 // destructor
172 //
173
6d50f529 174 if (fPRFsmp) {
175 delete [] fPRFsmp;
176 fPRFsmp = 0;
6a739e92 177 }
178
3551db50 179 Invalidate();
2745a409 180
acba9bad 181}
3551db50 182
63a700c6 183//_caching functions____________________________________________________________
95867fd1 184const TObject *AliTRDcalibDB::GetCachedCDBObject(Int_t id)
63a700c6 185{
2745a409 186 //
187 // Retrieves a cdb object with the given id. The objects are cached as
188 // long as the run number is not changed.
189 //
190 // Put together the available objects here by using the lines
191 // a) For usual calibration objects:
192 // case kID<Name> :
193 // return CacheCDBEntry(kID<Name>,"TRD/Calib/<Path>");
194 // break;
195 // See function CacheCDBEntry for details.
196 // and
197 // b) For calibration data which depends on two objects: One containing
198 // a value per detector and one the local fluctuations per pad:
199 // case kID<Name> :
200 // return CacheMergeCDBEntry(kID<Name>,"TRD/Calib/<padPath>","TRD/Calib/<chamberPath>");
201 // break;
202 // See function CacheMergeCDBEntry for details.
203 //
63a700c6 204
6d50f529 205 switch (id) {
2745a409 206
207 // Parameters defined per pad and chamber
208 case kIDVdriftPad :
6d50f529 209 return CacheCDBEntry(kIDVdriftPad ,"TRD/Calib/LocalVdrift");
2745a409 210 break;
211 case kIDVdriftChamber :
6d50f529 212 return CacheCDBEntry(kIDVdriftChamber ,"TRD/Calib/ChamberVdrift");
2745a409 213 break;
214 case kIDT0Pad :
6d50f529 215 return CacheCDBEntry(kIDT0Pad ,"TRD/Calib/LocalT0");
2745a409 216 break;
217 case kIDT0Chamber :
6d50f529 218 return CacheCDBEntry(kIDT0Chamber ,"TRD/Calib/ChamberT0");
2745a409 219 break;
220 case kIDGainFactorPad :
6d50f529 221 return CacheCDBEntry(kIDGainFactorPad ,"TRD/Calib/LocalGainFactor");
2745a409 222 break;
223 case kIDGainFactorChamber :
6d50f529 224 return CacheCDBEntry(kIDGainFactorChamber ,"TRD/Calib/ChamberGainFactor");
2745a409 225 break;
226
227 // Parameters defined per pad
228 case kIDPRFWidth :
6d50f529 229 return CacheCDBEntry(kIDPRFWidth ,"TRD/Calib/PRFWidth");
2745a409 230 break;
231
232 // Status values
2745a409 233 case kIDChamberStatus :
6d50f529 234 return CacheCDBEntry(kIDChamberStatus ,"TRD/Calib/ChamberStatus");
2745a409 235 break;
2745a409 236 case kIDPadStatus :
6d50f529 237 return CacheCDBEntry(kIDPadStatus ,"TRD/Calib/PadStatus");
2745a409 238 break;
239
240 // Global parameters
241 case kIDMonitoringData :
6d50f529 242 return CacheCDBEntry(kIDMonitoringData ,"TRD/Calib/MonitoringData");
2745a409 243 break;
244 case kIDGlobals :
6d50f529 245 return CacheCDBEntry(kIDGlobals ,"TRD/Calib/Globals");
2745a409 246 break;
247 case kIDPIDLQ :
6d50f529 248 return CacheCDBEntry(kIDPIDLQ ,"TRD/Calib/PIDLQ");
2745a409 249 break;
250
251 }
252
253 return 0;
254
63a700c6 255}
256
257//_____________________________________________________________________________
95867fd1 258AliCDBEntry *AliTRDcalibDB::GetCDBEntry(const char *cdbPath)
63a700c6 259{
260 //
261 // Retrieves an entry with path <cdbPath> from the CDB.
262 //
263
95867fd1 264 AliCDBEntry *entry = AliCDBManager::Instance()->Get(cdbPath,fRun);
2745a409 265 if (!entry) {
266 AliError(Form("Failed to get entry: %s",cdbPath));
63a700c6 267 return 0;
268 }
269
63a700c6 270 return entry;
2745a409 271
63a700c6 272}
273
274//_____________________________________________________________________________
95867fd1 275const TObject *AliTRDcalibDB::CacheCDBEntry(Int_t id, const char *cdbPath)
63a700c6 276{
277 //
278 // Caches the entry <id> with cdb path <cdbPath>
279 //
280
2745a409 281 if (!fCDBCache[id]) {
63a700c6 282 fCDBEntries[id] = GetCDBEntry(cdbPath);
95867fd1 283 if (fCDBEntries[id]) {
63a700c6 284 fCDBCache[id] = fCDBEntries[id]->GetObject();
95867fd1 285 }
63a700c6 286 }
95867fd1 287
63a700c6 288 return fCDBCache[id];
2745a409 289
63a700c6 290}
291
3551db50 292//_____________________________________________________________________________
293void AliTRDcalibDB::SetRun(Long64_t run)
294{
295 //
7754cd1f 296 // Sets current run number. Calibration data is read from the corresponding file.
3551db50 297 // When the run number changes the caching is invalidated.
298 //
7754cd1f 299
6d50f529 300 if (fRun == run) {
3551db50 301 return;
6d50f529 302 }
7754cd1f 303
3551db50 304 fRun = run;
95867fd1 305
3551db50 306 Invalidate();
2745a409 307
3551db50 308}
7754cd1f 309
3551db50 310//_____________________________________________________________________________
311void AliTRDcalibDB::Invalidate()
312{
313 //
314 // Invalidates cache (when run number is changed).
315 //
316
95867fd1 317 for (Int_t i = 0; i < kCDBCacheSize; ++i) {
2745a409 318 if (fCDBEntries[i]) {
319 if (AliCDBManager::Instance()->GetCacheFlag() == kFALSE) {
11f5dd43 320 if ((fCDBEntries[i]->IsOwner() == kFALSE) &&
321 (fCDBCache[i])) {
e254cad1 322 delete fCDBCache[i];
2745a409 323 }
e254cad1 324 delete fCDBEntries[i];
325 }
3551db50 326 fCDBEntries[i] = 0;
2745a409 327 fCDBCache[i] = 0;
3551db50 328 }
329 }
2745a409 330
3551db50 331}
332
3551db50 333//_____________________________________________________________________________
334Float_t AliTRDcalibDB::GetVdrift(Int_t det, Int_t col, Int_t row)
335{
336 //
337 // Returns the drift velocity for the given pad.
338 //
7754cd1f 339
95867fd1 340 const AliTRDCalPad *calPad = dynamic_cast<const AliTRDCalPad *>
6d50f529 341 (GetCachedCDBObject(kIDVdriftPad));
342 if (!calPad) {
3551db50 343 return -1;
6d50f529 344 }
3551db50 345
95867fd1 346 AliTRDCalROC *roc = calPad->GetCalROC(det);
6d50f529 347 if (!roc) {
3551db50 348 return -1;
6d50f529 349 }
3551db50 350
95867fd1 351 const AliTRDCalDet *calChamber = dynamic_cast<const AliTRDCalDet *>
6d50f529 352 (GetCachedCDBObject(kIDVdriftChamber));
353 if (!calChamber) {
7754cd1f 354 return -1;
6d50f529 355 }
7754cd1f 356
95867fd1 357 return calChamber->GetValue(det) * roc->GetValue(col,row);
2745a409 358
7754cd1f 359}
360
361//_____________________________________________________________________________
362Float_t AliTRDcalibDB::GetVdriftAverage(Int_t det)
363{
364 //
365 // Returns the average drift velocity for the given detector
366 //
367
95867fd1 368 const AliTRDCalDet *calDet = dynamic_cast<const AliTRDCalDet *>
6d50f529 369 (GetCachedCDBObject(kIDVdriftChamber));
370 if (!calDet) {
7754cd1f 371 return -1;
6d50f529 372 }
7754cd1f 373
374 return calDet->GetValue(det);
2745a409 375
acba9bad 376}
3551db50 377
378//_____________________________________________________________________________
379Float_t AliTRDcalibDB::GetT0(Int_t det, Int_t col, Int_t row)
380{
381 //
382 // Returns t0 for the given pad.
383 //
384
d4c6453d 385 const AliTRDCalPad *calPad = dynamic_cast<const AliTRDCalPad *>
386 (GetCachedCDBObject(kIDT0Pad));
6d50f529 387 if (!calPad) {
3551db50 388 return -1;
6d50f529 389 }
3551db50 390
d4c6453d 391 AliTRDCalROC *roc = calPad->GetCalROC(det);
6d50f529 392 if (!roc) {
3551db50 393 return -1;
6d50f529 394 }
3551db50 395
d4c6453d 396 const AliTRDCalDet *calChamber = dynamic_cast<const AliTRDCalDet *>
397 (GetCachedCDBObject(kIDT0Chamber));
6d50f529 398 if (!calChamber) {
7754cd1f 399 return -1;
6d50f529 400 }
7754cd1f 401
8d786fb8 402 return calChamber->GetValue(det) + roc->GetValue(col,row);
2745a409 403
7754cd1f 404}
405
406//_____________________________________________________________________________
407Float_t AliTRDcalibDB::GetT0Average(Int_t det)
408{
409 //
410 // Returns the average t0 for the given detector
411 //
412
5aba4f09 413 const AliTRDCalPad *calPad = dynamic_cast<const AliTRDCalPad *>
414 (GetCachedCDBObject(kIDT0Pad));
415 if (!calPad) {
416 return -1;
417 }
418
419 AliTRDCalROC *roc = calPad->GetCalROC(det);
420 if (!roc) {
421 return -1;
422 }
423
95867fd1 424 const AliTRDCalDet *calDet = dynamic_cast<const AliTRDCalDet *>
6d50f529 425 (GetCachedCDBObject(kIDT0Chamber));
426 if (!calDet) {
7754cd1f 427 return -1;
6d50f529 428 }
7754cd1f 429
5aba4f09 430 Double_t mean = 0.0;
431 for (Int_t channel = 0; channel < roc->GetNchannels(); ++channel) {
432 mean += (calDet->GetValue(det) + roc->GetValue(channel)) / roc->GetNchannels();
433 }
434
435 return mean;
2745a409 436
acba9bad 437}
3551db50 438
439//_____________________________________________________________________________
440Float_t AliTRDcalibDB::GetGainFactor(Int_t det, Int_t col, Int_t row)
441{
442 //
443 // Returns the gain factor for the given pad.
444 //
445
95867fd1 446 const AliTRDCalPad *calPad = dynamic_cast<const AliTRDCalPad *>
6d50f529 447 (GetCachedCDBObject(kIDGainFactorPad));
448 if (!calPad) {
3551db50 449 return -1;
6d50f529 450 }
3551db50 451
95867fd1 452 AliTRDCalROC *roc = calPad->GetCalROC(det);
3551db50 453 if (!roc)
454 return -1;
455
95867fd1 456 const AliTRDCalDet *calChamber = dynamic_cast<const AliTRDCalDet *>
6d50f529 457 (GetCachedCDBObject(kIDGainFactorChamber));
458 if (!calChamber) {
7754cd1f 459 return -1;
6d50f529 460 }
7754cd1f 461
95867fd1 462 return calChamber->GetValue(det) * roc->GetValue(col,row);
2745a409 463
7754cd1f 464}
465
466//_____________________________________________________________________________
467Float_t AliTRDcalibDB::GetGainFactorAverage(Int_t det)
468{
469 //
470 // Returns the average gain factor for the given detector
471 //
472
95867fd1 473 const AliTRDCalDet *calDet = dynamic_cast<const AliTRDCalDet *>
6d50f529 474 (GetCachedCDBObject(kIDGainFactorChamber));
475 if (!calDet) {
7754cd1f 476 return -1;
6d50f529 477 }
7754cd1f 478
479 return calDet->GetValue(det);
2745a409 480
acba9bad 481}
6a739e92 482
483//_____________________________________________________________________________
484Float_t AliTRDcalibDB::GetPRFWidth(Int_t det, Int_t col, Int_t row)
485{
486 //
487 // Returns the PRF width for the given pad.
488 //
489
95867fd1 490 const AliTRDCalPad *calPad = dynamic_cast<const AliTRDCalPad *>
6d50f529 491 (GetCachedCDBObject(kIDPRFWidth));
492 if (!calPad) {
6a739e92 493 return -1;
6d50f529 494 }
6a739e92 495
95867fd1 496 AliTRDCalROC *roc = calPad->GetCalROC(det);
6d50f529 497 if (!roc) {
6a739e92 498 return -1;
6d50f529 499 }
6a739e92 500
95867fd1 501 return roc->GetValue(col,row);
2745a409 502
acba9bad 503}
3551db50 504
505//_____________________________________________________________________________
506Int_t AliTRDcalibDB::GetNumberOfTimeBins()
507{
508 //
509 // Returns the number of time bins which are read-out.
510 //
7754cd1f 511
95867fd1 512 const AliTRDCalGlobals *calGlobal = dynamic_cast<const AliTRDCalGlobals *>
6d50f529 513 (GetCachedCDBObject(kIDGlobals));
514 if (!calGlobal) {
7754cd1f 515 return -1;
6d50f529 516 }
7754cd1f 517
3551db50 518 return calGlobal->GetNumberOfTimeBins();
2745a409 519
3551db50 520}
521
7754cd1f 522//_____________________________________________________________________________
523Char_t AliTRDcalibDB::GetPadStatus(Int_t det, Int_t col, Int_t row)
524{
525 //
526 // Returns the status of the given pad
527 //
528
95867fd1 529 const AliTRDCalPadStatus *cal = dynamic_cast<const AliTRDCalPadStatus *>
6d50f529 530 (GetCachedCDBObject(kIDPadStatus));
531 if (!cal) {
7754cd1f 532 return -1;
6d50f529 533 }
7754cd1f 534
95867fd1 535 const AliTRDCalSingleChamberStatus *roc = cal->GetCalROC(det);
6d50f529 536 if (!roc) {
7754cd1f 537 return -1;
6d50f529 538 }
7754cd1f 539
95867fd1 540 return roc->GetStatus(col,row);
2745a409 541
7754cd1f 542}
543
7754cd1f 544//_____________________________________________________________________________
545Char_t AliTRDcalibDB::GetChamberStatus(Int_t det)
546{
547 //
548 // Returns the status of the given chamber
549 //
550
95867fd1 551 const AliTRDCalChamberStatus *cal = dynamic_cast<const AliTRDCalChamberStatus *>
6d50f529 552 (GetCachedCDBObject(kIDChamberStatus));
553 if (!cal) {
7754cd1f 554 return -1;
6d50f529 555 }
7754cd1f 556
557 return cal->GetStatus(det);
2745a409 558
7754cd1f 559}
560
7754cd1f 561//_____________________________________________________________________________
562Bool_t AliTRDcalibDB::IsPadMasked(Int_t det, Int_t col, Int_t row)
563{
564 //
565 // Returns status, see name of functions for details ;-)
566 //
567
95867fd1 568 const AliTRDCalPadStatus *cal = dynamic_cast<const AliTRDCalPadStatus *>
569 (GetCachedCDBObject(kIDPadStatus));
6d50f529 570 if (!cal) {
7754cd1f 571 return -1;
6d50f529 572 }
7754cd1f 573
95867fd1 574 return cal->IsMasked(det,col,row);
2745a409 575
7754cd1f 576}
577
578//_____________________________________________________________________________
579Bool_t AliTRDcalibDB::IsPadBridgedLeft(Int_t det, Int_t col, Int_t row)
580{
581 //
582 // Returns status, see name of functions for details ;-)
583 //
584
95867fd1 585 const AliTRDCalPadStatus *cal = dynamic_cast<const AliTRDCalPadStatus *>
586 (GetCachedCDBObject(kIDPadStatus));
6d50f529 587 if (!cal) {
7754cd1f 588 return -1;
6d50f529 589 }
7754cd1f 590
95867fd1 591 return cal->IsBridgedLeft(det,col,row);
2745a409 592
7754cd1f 593}
594
595//_____________________________________________________________________________
596Bool_t AliTRDcalibDB::IsPadBridgedRight(Int_t det, Int_t col, Int_t row)
597{
598 //
599 // Returns status, see name of functions for details ;-)
600 //
601
95867fd1 602 const AliTRDCalPadStatus * cal = dynamic_cast<const AliTRDCalPadStatus *>
603 (GetCachedCDBObject(kIDPadStatus));
6d50f529 604 if (!cal) {
7754cd1f 605 return -1;
6d50f529 606 }
7754cd1f 607
95867fd1 608 return cal->IsBridgedRight(det,col,row);
2745a409 609
7754cd1f 610}
611
7754cd1f 612//_____________________________________________________________________________
613Bool_t AliTRDcalibDB::IsChamberInstalled(Int_t det)
614{
615 //
616 // Returns status, see name of functions for details ;-)
617 //
618
95867fd1 619 const AliTRDCalChamberStatus * cal = dynamic_cast<const AliTRDCalChamberStatus *>
620 (GetCachedCDBObject(kIDChamberStatus));
6d50f529 621 if (!cal) {
7754cd1f 622 return -1;
6d50f529 623 }
7754cd1f 624
625 return cal->IsInstalled(det);
2745a409 626
7754cd1f 627}
628
629//_____________________________________________________________________________
630Bool_t AliTRDcalibDB::IsChamberMasked(Int_t det)
631{
632 //
633 // Returns status, see name of functions for details ;-)
634 //
635
95867fd1 636 const AliTRDCalChamberStatus * cal = dynamic_cast<const AliTRDCalChamberStatus *>
637 (GetCachedCDBObject(kIDChamberStatus));
6d50f529 638 if (!cal) {
7754cd1f 639 return -1;
6d50f529 640 }
7754cd1f 641
642 return cal->IsMasked(det);
2745a409 643
7754cd1f 644}
645
cc7cef99 646//_____________________________________________________________________________
d4c6453d 647const AliTRDCalPIDLQ *AliTRDcalibDB::GetPIDLQObject()
cc7cef99 648{
649 //
650 // Returns the object storing the distributions for PID with likelihood
651 //
7754cd1f 652
d4c6453d 653 return dynamic_cast<const AliTRDCalPIDLQ *>
654 (GetCachedCDBObject(kIDPIDLQ));
2745a409 655
cc7cef99 656}
657
7754cd1f 658//_____________________________________________________________________________
d4c6453d 659const AliTRDCalMonitoring *AliTRDcalibDB::GetMonitoringObject()
7754cd1f 660{
661 //
662 // Returns the object storing the monitoring data
663 //
664
d4c6453d 665 return dynamic_cast<const AliTRDCalMonitoring *>
666 (GetCachedCDBObject(kIDMonitoringData));
1b95a37b 667
7754cd1f 668}
669
3551db50 670//_____________________________________________________________________________
1b95a37b 671Float_t AliTRDcalibDB::GetOmegaTau(Float_t vdrift, Float_t bz)
3551db50 672{
673 //
4e009ce4 674 // Returns omega*tau (tan(Lorentz-angle)) for a given drift velocity <vdrift>
675 // and a B-field <bz> for Xe/CO2 (15%).
3551db50 676 // The values are according to a GARFIELD simulation.
677 //
4e009ce4 678 // This function basically does not belong to the calibration class.
679 // It should be moved somewhere else.
3551db50 680 // However, currently it is in use by simulation and reconstruction.
681 //
682
1b95a37b 683 Float_t fieldAbs = TMath::Abs(bz);
4e009ce4 684 Float_t fieldSgn = (bz > 0.0) ? 1.0 : -1.0;
3551db50 685
686 const Int_t kNb = 5;
687 Float_t p0[kNb] = { 0.004810, 0.007412, 0.010252, 0.013409, 0.016888 };
688 Float_t p1[kNb] = { 0.054875, 0.081534, 0.107333, 0.131983, 0.155455 };
689 Float_t p2[kNb] = { -0.008682, -0.012896, -0.016987, -0.020880, -0.024623 };
690 Float_t p3[kNb] = { 0.000155, 0.000238, 0.000330, 0.000428, 0.000541 };
691
4806f526 692 // No ExB if field is too small (or zero)
693 if (fieldAbs < 0.01) {
3551db50 694
4806f526 695 return 0.0;
d19b1f90 696
4806f526 697 }
698 // Calculate ExB from parametrization
699 else {
700
701 Int_t ib = ((Int_t) (10 * (fieldAbs - 0.15)));
702 ib = TMath::Max( 0,ib);
703 ib = TMath::Min(kNb,ib);
704
705 Float_t alphaL = p0[ib]
706 + p1[ib] * vdrift
707 + p2[ib] * vdrift*vdrift
708 + p3[ib] * vdrift*vdrift*vdrift;
709
710 return TMath::Tan(fieldSgn * alphaL);
711
712 }
3551db50 713
6a739e92 714}
715
716//_____________________________________________________________________________
717void AliTRDcalibDB::SamplePRF()
718{
719 //
2745a409 720 // Samples the pad response function (should maybe go somewhere else ...)
6a739e92 721 //
722
723 const Int_t kPRFbin = 61;
724
6d50f529 725 Float_t prf[kNplan][kPRFbin] = {
726 {2.9037e-02, 3.3608e-02, 3.9020e-02, 4.5292e-02,
6a739e92 727 5.2694e-02, 6.1362e-02, 7.1461e-02, 8.3362e-02,
728 9.7063e-02, 1.1307e-01, 1.3140e-01, 1.5235e-01,
729 1.7623e-01, 2.0290e-01, 2.3294e-01, 2.6586e-01,
730 3.0177e-01, 3.4028e-01, 3.8077e-01, 4.2267e-01,
731 4.6493e-01, 5.0657e-01, 5.4655e-01, 5.8397e-01,
732 6.1767e-01, 6.4744e-01, 6.7212e-01, 6.9188e-01,
733 7.0627e-01, 7.1499e-01, 7.1851e-01, 7.1499e-01,
734 7.0627e-01, 6.9188e-01, 6.7212e-01, 6.4744e-01,
735 6.1767e-01, 5.8397e-01, 5.4655e-01, 5.0657e-01,
736 4.6493e-01, 4.2267e-01, 3.8077e-01, 3.4028e-01,
737 3.0177e-01, 2.6586e-01, 2.3294e-01, 2.0290e-01,
738 1.7623e-01, 1.5235e-01, 1.3140e-01, 1.1307e-01,
739 9.7063e-02, 8.3362e-02, 7.1461e-02, 6.1362e-02,
740 5.2694e-02, 4.5292e-02, 3.9020e-02, 3.3608e-02,
741 2.9037e-02},
742 {2.5478e-02, 2.9695e-02, 3.4655e-02, 4.0454e-02,
743 4.7342e-02, 5.5487e-02, 6.5038e-02, 7.6378e-02,
744 8.9696e-02, 1.0516e-01, 1.2327e-01, 1.4415e-01,
745 1.6794e-01, 1.9516e-01, 2.2573e-01, 2.5959e-01,
746 2.9694e-01, 3.3719e-01, 3.7978e-01, 4.2407e-01,
747 4.6889e-01, 5.1322e-01, 5.5569e-01, 5.9535e-01,
748 6.3141e-01, 6.6259e-01, 6.8882e-01, 7.0983e-01,
749 7.2471e-01, 7.3398e-01, 7.3761e-01, 7.3398e-01,
750 7.2471e-01, 7.0983e-01, 6.8882e-01, 6.6259e-01,
751 6.3141e-01, 5.9535e-01, 5.5569e-01, 5.1322e-01,
752 4.6889e-01, 4.2407e-01, 3.7978e-01, 3.3719e-01,
753 2.9694e-01, 2.5959e-01, 2.2573e-01, 1.9516e-01,
754 1.6794e-01, 1.4415e-01, 1.2327e-01, 1.0516e-01,
755 8.9696e-02, 7.6378e-02, 6.5038e-02, 5.5487e-02,
756 4.7342e-02, 4.0454e-02, 3.4655e-02, 2.9695e-02,
757 2.5478e-02},
758 {2.2363e-02, 2.6233e-02, 3.0782e-02, 3.6140e-02,
759 4.2535e-02, 5.0157e-02, 5.9197e-02, 6.9900e-02,
760 8.2707e-02, 9.7811e-02, 1.1548e-01, 1.3601e-01,
761 1.5998e-01, 1.8739e-01, 2.1840e-01, 2.5318e-01,
762 2.9182e-01, 3.3373e-01, 3.7837e-01, 4.2498e-01,
763 4.7235e-01, 5.1918e-01, 5.6426e-01, 6.0621e-01,
764 6.4399e-01, 6.7700e-01, 7.0472e-01, 7.2637e-01,
765 7.4206e-01, 7.5179e-01, 7.5551e-01, 7.5179e-01,
766 7.4206e-01, 7.2637e-01, 7.0472e-01, 6.7700e-01,
767 6.4399e-01, 6.0621e-01, 5.6426e-01, 5.1918e-01,
768 4.7235e-01, 4.2498e-01, 3.7837e-01, 3.3373e-01,
769 2.9182e-01, 2.5318e-01, 2.1840e-01, 1.8739e-01,
770 1.5998e-01, 1.3601e-01, 1.1548e-01, 9.7811e-02,
771 8.2707e-02, 6.9900e-02, 5.9197e-02, 5.0157e-02,
772 4.2535e-02, 3.6140e-02, 3.0782e-02, 2.6233e-02,
773 2.2363e-02},
774 {1.9635e-02, 2.3167e-02, 2.7343e-02, 3.2293e-02,
775 3.8224e-02, 4.5335e-02, 5.3849e-02, 6.4039e-02,
776 7.6210e-02, 9.0739e-02, 1.0805e-01, 1.2841e-01,
777 1.5216e-01, 1.7960e-01, 2.1099e-01, 2.4671e-01,
778 2.8647e-01, 3.2996e-01, 3.7660e-01, 4.2547e-01,
779 4.7536e-01, 5.2473e-01, 5.7215e-01, 6.1632e-01,
780 6.5616e-01, 6.9075e-01, 7.1939e-01, 7.4199e-01,
781 7.5838e-01, 7.6848e-01, 7.7227e-01, 7.6848e-01,
782 7.5838e-01, 7.4199e-01, 7.1939e-01, 6.9075e-01,
783 6.5616e-01, 6.1632e-01, 5.7215e-01, 5.2473e-01,
784 4.7536e-01, 4.2547e-01, 3.7660e-01, 3.2996e-01,
785 2.8647e-01, 2.4671e-01, 2.1099e-01, 1.7960e-01,
786 1.5216e-01, 1.2841e-01, 1.0805e-01, 9.0739e-02,
787 7.6210e-02, 6.4039e-02, 5.3849e-02, 4.5335e-02,
788 3.8224e-02, 3.2293e-02, 2.7343e-02, 2.3167e-02,
789 1.9635e-02},
790 {1.7224e-02, 2.0450e-02, 2.4286e-02, 2.8860e-02,
791 3.4357e-02, 4.0979e-02, 4.8966e-02, 5.8612e-02,
792 7.0253e-02, 8.4257e-02, 1.0102e-01, 1.2094e-01,
793 1.4442e-01, 1.7196e-01, 2.0381e-01, 2.4013e-01,
794 2.8093e-01, 3.2594e-01, 3.7450e-01, 4.2563e-01,
795 4.7796e-01, 5.2991e-01, 5.7974e-01, 6.2599e-01,
796 6.6750e-01, 7.0344e-01, 7.3329e-01, 7.5676e-01,
797 7.7371e-01, 7.8410e-01, 7.8793e-01, 7.8410e-01,
798 7.7371e-01, 7.5676e-01, 7.3329e-01, 7.0344e-01,
799 6.6750e-01, 6.2599e-01, 5.7974e-01, 5.2991e-01,
800 4.7796e-01, 4.2563e-01, 3.7450e-01, 3.2594e-01,
801 2.8093e-01, 2.4013e-01, 2.0381e-01, 1.7196e-01,
802 1.4442e-01, 1.2094e-01, 1.0102e-01, 8.4257e-02,
803 7.0253e-02, 5.8612e-02, 4.8966e-02, 4.0979e-02,
804 3.4357e-02, 2.8860e-02, 2.4286e-02, 2.0450e-02,
805 1.7224e-02},
806 {1.5096e-02, 1.8041e-02, 2.1566e-02, 2.5793e-02,
807 3.0886e-02, 3.7044e-02, 4.4515e-02, 5.3604e-02,
808 6.4668e-02, 7.8109e-02, 9.4364e-02, 1.1389e-01,
809 1.3716e-01, 1.6461e-01, 1.9663e-01, 2.3350e-01,
810 2.7527e-01, 3.2170e-01, 3.7214e-01, 4.2549e-01,
811 4.8024e-01, 5.3460e-01, 5.8677e-01, 6.3512e-01,
812 6.7838e-01, 7.1569e-01, 7.4655e-01, 7.7071e-01,
813 7.8810e-01, 7.9871e-01, 8.0255e-01, 7.9871e-01,
814 7.8810e-01, 7.7071e-01, 7.4655e-01, 7.1569e-01,
815 6.7838e-01, 6.3512e-01, 5.8677e-01, 5.3460e-01,
816 4.8024e-01, 4.2549e-01, 3.7214e-01, 3.2170e-01,
817 2.7527e-01, 2.3350e-01, 1.9663e-01, 1.6461e-01,
818 1.3716e-01, 1.1389e-01, 9.4364e-02, 7.8109e-02,
819 6.4668e-02, 5.3604e-02, 4.4515e-02, 3.7044e-02,
820 3.0886e-02, 2.5793e-02, 2.1566e-02, 1.8041e-02,
821 1.5096e-02}};
822
823 // More sampling precision with linear interpolation
6d50f529 824 fPRFlo = -1.5;
825 fPRFhi = 1.5;
6a739e92 826 Float_t pad[kPRFbin];
827 Int_t sPRFbin = kPRFbin;
6d50f529 828 Float_t sPRFwid = (fPRFhi - fPRFlo) / ((Float_t) sPRFbin);
6a739e92 829 for (Int_t iPad = 0; iPad < sPRFbin; iPad++) {
6d50f529 830 pad[iPad] = ((Float_t) iPad + 0.5) * sPRFwid + fPRFlo;
6a739e92 831 }
6d50f529 832 fPRFbin = 500;
833 fPRFwid = (fPRFhi - fPRFlo) / ((Float_t) fPRFbin);
834 fPRFpad = ((Int_t) (1.0 / fPRFwid));
6a739e92 835
6d50f529 836 if (fPRFsmp) delete [] fPRFsmp;
837 fPRFsmp = new Float_t[kNplan*fPRFbin];
6a739e92 838
839 Int_t ipos1;
840 Int_t ipos2;
841 Float_t diff;
842
843 for (Int_t iPla = 0; iPla < kNplan; iPla++) {
844
6d50f529 845 for (Int_t iBin = 0; iBin < fPRFbin; iBin++) {
6a739e92 846
6d50f529 847 Float_t bin = (((Float_t) iBin) + 0.5) * fPRFwid + fPRFlo;
6a739e92 848 ipos1 = ipos2 = 0;
849 diff = 0;
850 do {
851 diff = bin - pad[ipos2++];
852 } while ((diff > 0) && (ipos2 < kPRFbin));
853 if (ipos2 == kPRFbin) {
6d50f529 854 fPRFsmp[iPla*fPRFbin+iBin] = prf[iPla][ipos2-1];
6a739e92 855 }
856 else if (ipos2 == 1) {
6d50f529 857 fPRFsmp[iPla*fPRFbin+iBin] = prf[iPla][ipos2-1];
6a739e92 858 }
859 else {
860 ipos2--;
861 if (ipos2 >= kPRFbin) ipos2 = kPRFbin - 1;
862 ipos1 = ipos2 - 1;
6d50f529 863 fPRFsmp[iPla*fPRFbin+iBin] = prf[iPla][ipos2]
6a739e92 864 + diff * (prf[iPla][ipos2] - prf[iPla][ipos1])
865 / sPRFwid;
866 }
867
868 }
869 }
870
871}
872
873//_____________________________________________________________________________
874Int_t AliTRDcalibDB::PadResponse(Double_t signal, Double_t dist
2745a409 875 , Int_t plane, Double_t *pad) const
6a739e92 876{
877 //
878 // Applies the pad response
879 //
880
6d50f529 881 Int_t iBin = ((Int_t) (( - dist - fPRFlo) / fPRFwid));
882 Int_t iOff = plane * fPRFbin;
6a739e92 883
6d50f529 884 Int_t iBin0 = iBin - fPRFpad + iOff;
6a739e92 885 Int_t iBin1 = iBin + iOff;
6d50f529 886 Int_t iBin2 = iBin + fPRFpad + iOff;
6a739e92 887
888 pad[0] = 0.0;
889 pad[1] = 0.0;
890 pad[2] = 0.0;
6d50f529 891 if ((iBin1 >= 0) && (iBin1 < (fPRFbin*kNplan))) {
6a739e92 892
893 if (iBin0 >= 0) {
6d50f529 894 pad[0] = signal * fPRFsmp[iBin0];
6a739e92 895 }
6d50f529 896 pad[1] = signal * fPRFsmp[iBin1];
897 if (iBin2 < (fPRFbin*kNplan)) {
898 pad[2] = signal * fPRFsmp[iBin2];
6a739e92 899 }
900
901 return 1;
902
903 }
904 else {
905
906 return 0;
907
908 }
ab0a4106 909
3551db50 910}