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[u/mrichter/AliRoot.git] / VZERO / AliVZEROCalibData.cxx
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3191f471 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: AliVZEROCalibData.cxx, */
17
18/////////////////////////////////////////////////////////////////////////////
19// //
20// class for VZERO calibration //
21// //
22/////////////////////////////////////////////////////////////////////////////
23
706506da 24#include <TMath.h>
d5deaaa5 25#include <TObjString.h>
26#include <TMap.h>
3772afd5 27#include <TH1F.h>
28#include <TH2F.h>
706506da 29
d5deaaa5 30#include "AliDCSValue.h"
3772afd5 31#include "AliCDBManager.h"
32#include "AliCDBEntry.h"
3191f471 33#include "AliVZEROCalibData.h"
32c24147 34#include "AliVZERODataDCS.h"
3772afd5 35#include "AliVZEROConst.h"
32c24147 36#include "AliLog.h"
3191f471 37
38ClassImp(AliVZEROCalibData)
39
40//________________________________________________________________
3772afd5 41AliVZEROCalibData::AliVZEROCalibData():
42 fLightYields(NULL),
43 fPMGainsA(NULL),
44 fPMGainsB(NULL)
3191f471 45{
2f09013f 46 // default constructor
47
48 for(int t=0; t<64; t++) {
49 fMeanHV[t] = 100.0;
50 fWidthHV[t] = 0.0;
992e9cba 51 fTimeOffset[t] = 5.0;
2f09013f 52 fTimeGain[t] = 1.0;
53 fDeadChannel[t]= kFALSE;
6e2c3e87 54 fDiscriThr[t] = 2.5;
2f09013f 55 }
56 for(int t=0; t<128; t++) {
57 fPedestal[t] = 0.0;
58 fSigma[t] = 0.0;
59 fADCmean[t] = 0.0;
60 fADCsigma[t] = 0.0;
2f09013f 61 }
62 for(int i=0; i<kNCIUBoards ;i++) {
63 fTimeResolution[i] = 25./256.; // Default time resolution
64 fWidthResolution[i] = 25./64.; // Default time width resolution
32cd3fdc 65 fMatchWindow[i] = 4;
66 fSearchWindow[i] = 16;
67 fTriggerCountOffset[i] = 3247;
68 fRollOver[i] = 3563;
2f09013f 69 }
d5deaaa5 70
3191f471 71}
72
a3c86e1f 73//________________________________________________________________
74void AliVZEROCalibData::Reset()
75{
d7a5c700 76 // reset
a3c86e1f 77}
78
3191f471 79//________________________________________________________________
3772afd5 80AliVZEROCalibData::AliVZEROCalibData(const char* name):
81 fLightYields(NULL),
82 fPMGainsA(NULL),
83 fPMGainsB(NULL)
3191f471 84{
32c24147 85 // Constructor
2f09013f 86 TString namst = "Calib_";
87 namst += name;
88 SetName(namst.Data());
89 SetTitle(namst.Data());
90 for(int t=0; t<64; t++) {
91 fMeanHV[t] = 100.0;
92 fWidthHV[t] = 0.0;
992e9cba 93 fTimeOffset[t] = 5.0;
2f09013f 94 fTimeGain[t] = 1.0;
95 fDeadChannel[t]= kFALSE;
6e2c3e87 96 fDiscriThr[t] = 2.5;
2f09013f 97 }
98 for(int t=0; t<128; t++) {
99 fPedestal[t] = 0.0;
100 fSigma[t] = 0.0;
101 fADCmean[t] = 0.0;
102 fADCsigma[t] = 0.0;
2f09013f 103 }
104 for(int i=0; i<kNCIUBoards ;i++) {
105 fTimeResolution[i] = 25./256.; // Default time resolution in ns / channel
106 fWidthResolution[i] = 25./64.; // Default time width resolution in ns / channel
32cd3fdc 107 fMatchWindow[i] = 4;
108 fSearchWindow[i] = 16;
109 fTriggerCountOffset[i] = 3247;
110 fRollOver[i] = 3563;
2f09013f 111 }
3191f471 112
113}
114
115//________________________________________________________________
116AliVZEROCalibData::AliVZEROCalibData(const AliVZEROCalibData& calibda) :
3772afd5 117 TNamed(calibda),
118 fLightYields(NULL),
119 fPMGainsA(NULL),
120 fPMGainsB(NULL)
3191f471 121{
122// copy constructor
123
124 SetName(calibda.GetName());
125 SetTitle(calibda.GetName());
126
fae0e0c0 127 for(int t=0; t<128; t++) {
3191f471 128 fPedestal[t] = calibda.GetPedestal(t);
fae0e0c0 129 fSigma[t] = calibda.GetSigma(t);
2a25ea57 130 fADCmean[t] = calibda.GetADCmean(t);
4e2652e8 131 fADCsigma[t] = calibda.GetADCsigma(t); }
fae0e0c0 132
133 for(int t=0; t<64; t++) {
d7a5c700 134 fMeanHV[t] = calibda.GetMeanHV(t);
2a25ea57 135 fWidthHV[t] = calibda.GetWidthHV(t);
136 fTimeOffset[t] = calibda.GetTimeOffset(t);
d5deaaa5 137 fTimeGain[t] = calibda.GetTimeGain(t);
2f09013f 138 fDeadChannel[t] = calibda.IsChannelDead(t);
6e2c3e87 139 fDiscriThr[t] = calibda.GetDiscriThr(t);
d5deaaa5 140 }
141
2f09013f 142 for(int i=0; i<kNCIUBoards ;i++) {
143 fTimeResolution[i] = calibda.GetTimeResolution(i);
144 fWidthResolution[i] = calibda.GetWidthResolution(i);
32cd3fdc 145 fMatchWindow[i] = calibda.GetMatchWindow(i);
146 fSearchWindow[i] = calibda.GetSearchWindow(i);
147 fTriggerCountOffset[i] = calibda.GetTriggerCountOffset(i);
148 fRollOver[i] = calibda.GetRollOver(i);
2f09013f 149 }
3191f471 150
151}
152
153//________________________________________________________________
154AliVZEROCalibData &AliVZEROCalibData::operator =(const AliVZEROCalibData& calibda)
155{
156// assignment operator
157
158 SetName(calibda.GetName());
159 SetTitle(calibda.GetName());
160
fae0e0c0 161 for(int t=0; t<128; t++) {
3191f471 162 fPedestal[t] = calibda.GetPedestal(t);
fae0e0c0 163 fSigma[t] = calibda.GetSigma(t);
2a25ea57 164 fADCmean[t] = calibda.GetADCmean(t);
4e2652e8 165 fADCsigma[t] = calibda.GetADCsigma(t); }
fae0e0c0 166
2a25ea57 167 for(int t=0; t<64; t++) {
d7a5c700 168 fMeanHV[t] = calibda.GetMeanHV(t);
2a25ea57 169 fWidthHV[t] = calibda.GetWidthHV(t);
170 fTimeOffset[t] = calibda.GetTimeOffset(t);
d5deaaa5 171 fTimeGain[t] = calibda.GetTimeGain(t);
2f09013f 172 fDeadChannel[t] = calibda.IsChannelDead(t);
6e2c3e87 173 fDiscriThr[t] = calibda.GetDiscriThr(t);
d5deaaa5 174 }
2f09013f 175 for(int i=0; i<kNCIUBoards ;i++) {
176 fTimeResolution[i] = calibda.GetTimeResolution(i);
177 fWidthResolution[i] = calibda.GetWidthResolution(i);
32cd3fdc 178 fMatchWindow[i] = calibda.GetMatchWindow(i);
179 fSearchWindow[i] = calibda.GetSearchWindow(i);
180 fTriggerCountOffset[i] = calibda.GetTriggerCountOffset(i);
181 fRollOver[i] = calibda.GetRollOver(i);
2f09013f 182 }
2a25ea57 183
3191f471 184 return *this;
185
186}
187
188//________________________________________________________________
189AliVZEROCalibData::~AliVZEROCalibData()
190{
d7a5c700 191 // destructor
3772afd5 192 if (fLightYields)
193 delete [] fLightYields;
194 if (fPMGainsA)
195 delete [] fPMGainsA;
196 if (fPMGainsB)
197 delete [] fPMGainsB;
3191f471 198}
d5deaaa5 199//_____________________________________________________________________________
200void AliVZEROCalibData::FillDCSData(AliVZERODataDCS * data){
201 // Set all parameters from the data get by the shuttle
202 TMap * params = data->GetFEEParameters();
203 TIter iter(params);
204 TObjString* aliasName;
205
206 while (( aliasName = (TObjString*) iter.Next() )) {
207 AliDCSValue* aValue = (AliDCSValue*) params->GetValue(aliasName);
5978520a 208 Int_t val;
d5deaaa5 209 if(aValue) {
692e31a4 210 val = aValue->GetUInt();
5978520a 211 AliInfo(Form("%s : %d",aliasName->String().Data(), val));
d5deaaa5 212 SetParameter(aliasName->String(),val);
213 }
214 }
215
216 SetMeanHV(data->GetMeanHV());
217 SetWidthHV(data->GetWidthHV());
218 SetDeadMap(data->GetDeadMap());
219
220}
221//_____________________________________________________________________________
5978520a 222void AliVZEROCalibData::SetParameter(TString name, Int_t val){
d5deaaa5 223 // Set given parameter
224
225 Int_t iBoard = -1;
57c7500a 226 Int_t iChannel = -1;
d5deaaa5 227
228 TSeqCollection* nameSplit = name.Tokenize("/");
229 TObjString * boardName = (TObjString *)nameSplit->At(2);
230 sscanf(boardName->String().Data(),"CIU%d",&iBoard);
57c7500a 231
232 TString paramName = ((TObjString *)nameSplit->At(3))->String();
233 Char_t channel[2] ; channel[1] = '\0';
234 channel[0] = paramName[paramName.Sizeof()-2];
235 sscanf(channel,"%d",&iChannel);
d5deaaa5 236
4bc15c46 237 if(name.Contains("TimeResolution")) SetTimeResolution((UShort_t) val,iBoard);
238 else if(name.Contains("WidthResolution")) SetWidthResolution((UShort_t) val,iBoard);
32cd3fdc 239 else if(name.Contains("MatchWindow")) SetMatchWindow((UInt_t) val,iBoard);
240 else if(name.Contains("SearchWindow")) SetSearchWindow((UInt_t) val,iBoard);
241 else if(name.Contains("TriggerCountOffset")) SetTriggerCountOffset((UInt_t) val,iBoard);
242 else if(name.Contains("RollOver")) SetRollOver((UInt_t) val,iBoard);
51980118 243 else if(name.Contains("DelayHit")) SetTimeOffset(0.01*(Float_t)val,iBoard,(iChannel-1));
244 else if(name.Contains("DiscriThr")) SetDiscriThr(((Float_t)val-2040.)/112.,iBoard,(iChannel-1));
d5deaaa5 245 else AliError(Form("No Setter found for FEE parameter : %s",name.Data()));
246}
3191f471 247
3191f471 248//________________________________________________________________
32c24147 249void AliVZEROCalibData::SetPedestal(const Float_t* Pedestal)
3191f471 250{
fae0e0c0 251 if(Pedestal) for(int t=0; t<128; t++) fPedestal[t] = Pedestal[t];
252 else for(int t=0; t<128; t++) fPedestal[t] = 0.0;
253}
254
255//________________________________________________________________
32c24147 256void AliVZEROCalibData::SetSigma(const Float_t* Sigma)
fae0e0c0 257{
258 if(Sigma) for(int t=0; t<128; t++) fSigma[t] = Sigma[t];
259 else for(int t=0; t<128; t++) fSigma[t] = 0.0;
3191f471 260}
261
262//________________________________________________________________
32c24147 263void AliVZEROCalibData::SetADCmean(const Float_t* ADCmean)
3191f471 264{
2a25ea57 265 if(ADCmean) for(int t=0; t<128; t++) fADCmean[t] = ADCmean[t];
266 else for(int t=0; t<128; t++) fADCmean[t] = 0.0;
3191f471 267}
268
40b6a179 269//________________________________________________________________
32c24147 270void AliVZEROCalibData::SetADCsigma(const Float_t* ADCsigma)
40b6a179 271{
272 if(ADCsigma) for(int t=0; t<128; t++) fADCsigma[t] = ADCsigma[t];
273 else for(int t=0; t<128; t++) fADCsigma[t] = 0.0;
274}
275
fae0e0c0 276//________________________________________________________________
32c24147 277void AliVZEROCalibData::SetMeanHV(const Float_t* MeanHV)
fae0e0c0 278{
2a25ea57 279 if(MeanHV) for(int t=0; t<64; t++) fMeanHV[t] = MeanHV[t];
280 else for(int t=0; t<64; t++) fMeanHV[t] = 0.0;
fae0e0c0 281}
282
283//________________________________________________________________
32c24147 284void AliVZEROCalibData::SetWidthHV(const Float_t* WidthHV)
fae0e0c0 285{
2a25ea57 286 if(WidthHV) for(int t=0; t<64; t++) fWidthHV[t] = WidthHV[t];
287 else for(int t=0; t<64; t++) fWidthHV[t] = 0.0;
fae0e0c0 288}
d7a5c700 289
7495d2be 290//________________________________________________________________
32c24147 291void AliVZEROCalibData::SetDeadMap(const Bool_t* deadMap)
7495d2be 292{
293 if(deadMap) for(int t=0; t<64; t++) fDeadChannel[t] = deadMap[t];
294 else for(int t=0; t<64; t++) fDeadChannel[t] = kFALSE;
295}
296
57c7500a 297//________________________________________________________________
51980118 298void AliVZEROCalibData::SetTimeOffset(Float_t val, Int_t board, Int_t channel)
57c7500a 299{
51980118 300 Int_t ch = AliVZEROCalibData::GetOfflineChannelNumber(board,channel);
301 if(ch >= 0){
302 fTimeOffset[ch]=val;
303 AliInfo(Form("Time offset for channel %d set to %f",ch,fTimeOffset[ch]));
57c7500a 304 }
305 else
51980118 306 AliError("Board/Channel numbers are not valid");
57c7500a 307}
308
d7a5c700 309//________________________________________________________________
32c24147 310void AliVZEROCalibData::SetTimeOffset(const Float_t* TimeOffset)
d7a5c700 311{
2a25ea57 312 if(TimeOffset) for(int t=0; t<64; t++) fTimeOffset[t] = TimeOffset[t];
992e9cba 313 else for(int t=0; t<64; t++) fTimeOffset[t] = 5.0;
d7a5c700 314}
2a25ea57 315
316//________________________________________________________________
32c24147 317void AliVZEROCalibData::SetTimeGain(const Float_t* TimeGain)
2a25ea57 318{
319 if(TimeGain) for(int t=0; t<64; t++) fTimeGain[t] = TimeGain[t];
320 else for(int t=0; t<64; t++) fTimeGain[t] = 0.0;
321}
322
706506da 323//_____________________________________________________________________________
3772afd5 324Float_t AliVZEROCalibData::GetMIPperADC(Int_t channel) {
706506da 325
326 // Computes the MIP conversion factor - MIP per ADC channel -
327 // Argument passed is the PM number (aliroot numbering)
328
3772afd5 329 Float_t nPhPerMIP = (channel < 32) ? 6950 : 33690;
330 return 1./(nPhPerMIP*GetLightYields(channel)*0.18*TMath::Qe()*GetGain(channel)/kChargePerADC);
706506da 331
332}
4e2652e8 333
334//________________________________________________________________
3772afd5 335Float_t AliVZEROCalibData::GetGain(Int_t channel)
4e2652e8 336{
3772afd5 337 // Computes the PM gains
4e2652e8 338 // Argument passed is the PM number (aliroot numbering)
3772afd5 339 if (!fPMGainsA) InitPMGains();
4e2652e8 340
341 // High Voltage retrieval from Calibration Data Base:
342 Float_t hv = fMeanHV[channel];
343 Float_t gain = 0;
344 if (hv>0)
3772afd5 345 gain = TMath::Exp(fPMGainsA[channel]+fPMGainsB[channel]*TMath::Log(hv));
4e2652e8 346 return gain;
347}
348
d5deaaa5 349//________________________________________________________________
350void AliVZEROCalibData::SetTimeResolution(UShort_t *resols){
351 // Set Time Resolution of the TDC
352 if(resols) for(int t=0; t<kNCIUBoards; t++) SetTimeResolution(resols[t],t);
4bc15c46 353 else AliError("Time Resolution not defined.");
d5deaaa5 354
355}
356//________________________________________________________________
357void AliVZEROCalibData::SetTimeResolution(UShort_t resol, Int_t board)
358{
359 // Set Time Resolution of the TDC
4bc15c46 360 if((board>=0) && (board<kNCIUBoards)) {
d5deaaa5 361 switch(resol){
362 case 0:
363 fTimeResolution[board] = 25./256.;
364 break;
365 case 1:
366 fTimeResolution[board] = 25./128.;
367 break;
368 case 2:
369 fTimeResolution[board] = 25./64.;
370 break;
371 case 3:
372 fTimeResolution[board] = 25./32.;
373 break;
374 case 4:
375 fTimeResolution[board] = 25./16.;
376 break;
377 case 5:
378 fTimeResolution[board] = 25./8.;
379 break;
380 case 6:
381 fTimeResolution[board] = 6.25;
382 break;
383 case 7:
384 fTimeResolution[board] = 12.5;
385 break;
386 }
4bc15c46 387 AliInfo(Form("Time Resolution of board %d set to %f",board,fTimeResolution[board]));
d5deaaa5 388 } else AliError(Form("Board %d is not valid",board));
389}
390//________________________________________________________________
391void AliVZEROCalibData::SetWidthResolution(UShort_t *resols){
392 // Set Time Width Resolution of the TDC
393 if(resols) for(int t=0; t<kNCIUBoards; t++) SetWidthResolution(resols[t],t);
4bc15c46 394 else AliError("Width Resolution not defined.");
d5deaaa5 395
396}
397//________________________________________________________________
398void AliVZEROCalibData::SetWidthResolution(UShort_t resol, Int_t board)
399{
400 // Set Time Width Resolution of the TDC
4bc15c46 401 if((board>=0) && (board<kNCIUBoards)){
d5deaaa5 402 switch(resol){
403 case 0:
404 fWidthResolution[board] = 25./256.;
405 break;
406 case 1:
407 fWidthResolution[board] = 25./128.;
408 break;
409 case 2:
410 fWidthResolution[board] = 25./64.;
411 break;
412 case 3:
413 fWidthResolution[board] = 25./32.;
414 break;
415 case 4:
416 fWidthResolution[board] = 25./16.;
417 break;
418 case 5:
419 fWidthResolution[board] = 25./8.;
420 break;
421 case 6:
422 fWidthResolution[board] = 6.25;
423 break;
424 case 7:
425 fWidthResolution[board] = 12.5;
426 break;
427 case 8:
428 fWidthResolution[board] = 25.;
429 break;
430 case 9:
431 fWidthResolution[board] = 50.;
432 break;
433 case 10:
434 fWidthResolution[board] = 100.;
435 break;
436 case 11:
437 fWidthResolution[board] = 200.;
438 break;
439 case 12:
440 fWidthResolution[board] = 400.;
441 break;
442 case 13:
443 fWidthResolution[board] = 800.;
444 break;
445
446 }
4bc15c46 447 AliInfo(Form("Width Resolution of board %d set to %f",board,fWidthResolution[board]));
d5deaaa5 448 }else AliError(Form("Board %d is not valid",board));
449}
706506da 450
32cd3fdc 451//________________________________________________________________
452void AliVZEROCalibData::SetMatchWindow(UInt_t *windows)
453{
454 // Set Match window of the HPTDC
455 // The units are 25ns
456 if(windows) for(Int_t b=0; b<kNCIUBoards; b++) SetMatchWindow(windows[b],b);
457 else AliError("Match windows not defined.");
458}
459
460//________________________________________________________________
461void AliVZEROCalibData::SetMatchWindow(UInt_t window, Int_t board)
462{
463 // Set Match window of the HPTDC
464 // The units are 25ns
465 if((board>=0) && (board<kNCIUBoards)){
466 fMatchWindow[board] = window;
467 AliInfo(Form("Match window of board %d set to %d",board,fMatchWindow[board]));
468 }
469 else
470 AliError(Form("Board %d is not valid",board));
471}
472
473//________________________________________________________________
474void AliVZEROCalibData::SetSearchWindow(UInt_t *windows)
475{
476 // Set Search window of the HPTDC
477 // The units are 25ns
478 if(windows) for(Int_t b=0; b<kNCIUBoards; b++) SetSearchWindow(windows[b],b);
479 else AliError("Search windows not defined.");
480}
481
482//________________________________________________________________
483void AliVZEROCalibData::SetSearchWindow(UInt_t window, Int_t board)
484{
485 // Set Search window of the HPTDC
486 // The units are 25ns
487 if((board>=0) && (board<kNCIUBoards)){
488 fSearchWindow[board] = window;
489 AliInfo(Form("Search window of board %d set to %d",board,fSearchWindow[board]));
490 }
491 else
492 AliError(Form("Board %d is not valid",board));
493}
494
495//________________________________________________________________
496void AliVZEROCalibData::SetTriggerCountOffset(UInt_t *offsets)
497{
498 // Set trigger-count offset of the HPTDC
499 // The units are 25ns
500 if(offsets) for(Int_t b=0; b<kNCIUBoards; b++) SetTriggerCountOffset(offsets[b],b);
501 else AliError("Trigger count offsets not defined.");
502}
503
504//________________________________________________________________
505void AliVZEROCalibData::SetTriggerCountOffset(UInt_t offset, Int_t board)
506{
507 // Set trigger-count offsets of the HPTDC
508 // The units are 25ns
509 if((board>=0) && (board<kNCIUBoards)){
510 fTriggerCountOffset[board] = offset;
511 AliInfo(Form("Trigger-count offset of board %d set to %d",board,fTriggerCountOffset[board]));
512 }
513 else
514 AliError(Form("Board %d is not valid",board));
515}
516
517//________________________________________________________________
518void AliVZEROCalibData::SetRollOver(UInt_t *offsets)
519{
520 // Set Roll-over of the HPTDC
521 // The units are 25ns
522 if(offsets) for(Int_t b=0; b<kNCIUBoards; b++) SetRollOver(offsets[b],b);
523 else AliError("Roll-over offsets not defined.");
524}
525
526//________________________________________________________________
527void AliVZEROCalibData::SetRollOver(UInt_t offset, Int_t board)
528{
529 // Set Roll-over of the HPTDC
530 // The units are 25ns
531 if((board>=0) && (board<kNCIUBoards)){
532 fRollOver[board] = offset;
533 AliInfo(Form("Roll-over offset of board %d set to %d",board,fRollOver[board]));
534 }
535 else
536 AliError(Form("Board %d is not valid",board));
537}
6e2c3e87 538
539//________________________________________________________________
51980118 540void AliVZEROCalibData::SetDiscriThr(Float_t thr, Int_t board, Int_t channel)
6e2c3e87 541{
542 // Set the TDC discriminator
543 // threshold values expressed in units of ADC
51980118 544 Int_t ch = AliVZEROCalibData::GetOfflineChannelNumber(board,channel);
545 if(ch >= 0){
6e2c3e87 546 if (thr > 0) {
51980118 547 fDiscriThr[ch]=thr;
548 AliInfo(Form("Discriminator threshold for channel %d set to %f",ch,fDiscriThr[ch]));
6e2c3e87 549 }
550 else {
51980118 551 AliWarning(Form("Ignore wrong threshold value (%f) for channel %d !",thr,ch));
6e2c3e87 552 }
553 }
554 else
51980118 555 AliError("Board/Channel numbers are not valid");
6e2c3e87 556}
557
558//________________________________________________________________
559void AliVZEROCalibData::SetDiscriThr(const Float_t* thresholds)
560{
561 // Set the TDC discriminator
562 // threshold values expressed in units of ADC
563 if(thresholds) for(int t=0; t<64; t++) fDiscriThr[t] = thresholds[t];
564 else for(int t=0; t<64; t++) fDiscriThr[t] = 2.5;
565}
51980118 566
567Int_t AliVZEROCalibData::GetOfflineChannelNumber(Int_t board, Int_t channel)
568{
569 // Get the offline channel number from
570 // the FEE board and channel indexes
571
572 if (board < 0 || board >= 8) {
573 AliErrorClass(Form("Wrong FEE board number: %d",board));
574 return -1;
575 }
576 if (channel < 0 || channel >= 8) {
577 AliErrorClass(Form("Wrong FEE channel number: %d",channel));
578 return -1;
579 }
580
581 Int_t offCh = (board < 4) ? (8 * board + 32) : (8 * board -32);
582 offCh += (7 - channel);
583
584 return offCh;
585}
586
587Int_t AliVZEROCalibData::GetBoardNumber(Int_t channel)
588{
589 // Get FEE board number
590 // from offline channel index
591 if (channel >= 0 && channel < 32) return (channel / 8 + 4);
592 if (channel >=32 && channel < 64) return (channel / 8 - 4);
593
594 AliErrorClass(Form("Wrong channel index: %d",channel));
595 return -1;
596}
d0ff6548 597
598Int_t AliVZEROCalibData::GetFEEChannelNumber(Int_t channel)
599{
600 // Get FEE channel number
601 // from offline channel index
602 if (channel >= 0 && channel < 64) return (7 - (channel % 8));
603
604 AliErrorClass(Form("Wrong channel index: %d",channel));
605 return -1;
606}
3772afd5 607
608Float_t AliVZEROCalibData::GetLightYields(Int_t channel)
609{
610 // Get the light yield efficiency
611 // for a given channel
612 if (!fLightYields) InitLightYields();
613
614 if (channel >= 0 && channel < 64) {
615 return fLightYields[channel];
616 }
617
618 AliError(Form("Wrong channel index: %d",channel));
619 return 0;
620}
621
622void AliVZEROCalibData::InitLightYields()
623{
624 // Initialize the light yield factors
625 // Read from a separate OCDB entry
626 if (fLightYields) return;
627
628 AliCDBEntry *entry = AliCDBManager::Instance()->Get("VZERO/Calib/LightYields");
629 if (!entry) AliFatal("VZERO light yields are not found in OCDB !");
630 TH1F *yields = (TH1F*)entry->GetObject();
631
632 fLightYields = new Float_t[64];
633 for(Int_t i = 0 ; i < 64; ++i) {
634 fLightYields[i] = yields->GetBinContent(i+1);
635 }
636}
637
638void AliVZEROCalibData::InitPMGains()
639{
640 // Initialize the PM gain factors
641 // Read from a separate OCDB entry
642 if (fPMGainsA) return;
643
644 AliCDBEntry *entry = AliCDBManager::Instance()->Get("VZERO/Calib/PMGains");
645 if (!entry) AliFatal("VZERO PM gains are not found in OCDB !");
646 TH2F *gains = (TH2F*)entry->GetObject();
647
648 fPMGainsA = new Float_t[64];
649 fPMGainsB = new Float_t[64];
650 for(Int_t i = 0 ; i < 64; ++i) {
651 fPMGainsA[i] = gains->GetBinContent(i+1,1);
652 fPMGainsB[i] = gains->GetBinContent(i+1,2);
653 }
654}
ed1ea59f 655
656Float_t AliVZEROCalibData::GetCalibDiscriThr(Int_t channel, Bool_t scaled)
657{
658 // The method returns actual TDC discri threshold
659 // extracted from the data.
660 //
661 // In case scaled flag is set the threshold is scaled
662 // so that to get 4.0 for a FEE threshold of 4.0.
663 // In this way we avoid a change in the slewing correction
664 // for the entire 2010 p-p data.
665 //
666 // The method is to be moved to OCDB object.
667
668 Float_t thr = GetDiscriThr(channel);
669
670 Float_t calThr = 0;
671 if (thr <= 1.)
672 calThr = 3.1;
673 else if (thr >= 2.)
674 calThr = (3.1+1.15*thr-1.7);
675 else
676 calThr = (3.1-0.3*thr+0.3*thr*thr);
677
678 if (scaled) calThr *= 4./(3.1+1.15*4.-1.7);
679
680 return calThr;
681}