added check on high end of amplitudes from fit to solve problem of crashes when the...
[u/mrichter/AliRoot.git] / EMCAL / AliEMCALRawUtils.cxx
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ee299369 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/* History of cvs commits:
18 *
c47157cd 19 * $Log$
48a56166 20 * Revision 1.10 2007/12/06 13:58:11 hristov
21 * Additional pritection. Do not delete the mapping, it is owned by another class
22 *
e36e3bcf 23 * Revision 1.9 2007/12/06 02:19:51 jklay
24 * incorporated fitting procedure from testbeam analysis into AliRoot
25 *
8cb998bd 26 * Revision 1.8 2007/12/05 02:30:51 jklay
27 * modification to read Altro mappings into AliEMCALRecParam and pass to AliEMCALRawUtils from AliEMCALReconstructor; add option to AliEMCALRawUtils to set old RCU format (for testbeam) or not
28 *
feedcab9 29 * Revision 1.7 2007/11/14 15:51:46 gustavo
30 * Take out few unnecessary prints
31 *
6d0b6861 32 * Revision 1.6 2007/11/01 01:23:51 mvl
33 * Removed call to SetOldRCUFormat, which is only needed for testbeam data
34 *
f31c5945 35 * Revision 1.5 2007/11/01 01:20:33 mvl
36 * Further improvement of peak finding; more robust fit
37 *
e9dbb64a 38 * Revision 1.4 2007/10/31 17:15:24 mvl
39 * Fixed bug in raw data unpacking; Added pedestal to signal fit; Added logic to deal with high/low gain
40 *
82cbdfca 41 * Revision 1.3 2007/09/27 08:36:46 mvl
42 * More robust setting of fit range in FitRawSignal (P. Hristov)
43 *
5a056daa 44 * Revision 1.2 2007/09/03 20:55:35 jklay
45 * EMCAL e-by-e reconstruction methods from Cvetan
46 *
c47157cd 47 * Revision 1.1 2007/03/17 19:56:38 mvl
48 * Moved signal shape routines from AliEMCAL to separate class AliEMCALRawUtils to streamline raw data reconstruction code.
49 * */
ee299369 50
51//*-- Author: Marco van Leeuwen (LBL)
52#include "AliEMCALRawUtils.h"
53
54#include "TF1.h"
55#include "TGraph.h"
56#include "TSystem.h"
57
58#include "AliLog.h"
72c58de0 59#include "AliRun.h"
ee299369 60#include "AliRunLoader.h"
61#include "AliCaloAltroMapping.h"
62#include "AliAltroBuffer.h"
63#include "AliRawReader.h"
64#include "AliCaloRawStream.h"
65#include "AliDAQ.h"
66
feedcab9 67#include "AliEMCALRecParam.h"
ee299369 68#include "AliEMCALLoader.h"
69#include "AliEMCALGeometry.h"
70#include "AliEMCALDigitizer.h"
71#include "AliEMCALDigit.h"
72
73
74ClassImp(AliEMCALRawUtils)
75
76// Signal shape parameters
82cbdfca 77Double_t AliEMCALRawUtils::fgTimeBinWidth = 100E-9 ; // each sample is 100 ns
ee299369 78Double_t AliEMCALRawUtils::fgTimeTrigger = 1.5E-6 ; // 15 time bins ~ 1.5 musec
79
80// some digitization constants
81Int_t AliEMCALRawUtils::fgThreshold = 1;
82Int_t AliEMCALRawUtils::fgDDLPerSuperModule = 2; // 2 ddls per SuperModule
83
8cb998bd 84AliEMCALRawUtils::AliEMCALRawUtils()
b4133f05 85 : fHighLowGainFactor(0.), fOrder(0), fTau(0.), fNoiseThreshold(0),
86 fNPedSamples(0), fGeom(0), fOption("")
8cb998bd 87{
b4133f05 88
89 //These are default parameters.
90 //Can be re-set from without with setter functions
ee299369 91 fHighLowGainFactor = 16. ; // adjusted for a low gain range of 82 GeV (10 bits)
b4133f05 92 fOrder = 2; // order of gamma fn
93 fTau = 2.35; // in units of timebin, from CERN 2007 testbeam
94 fNoiseThreshold = 3;
95 fNPedSamples = 5;
65bdc82f 96
97 //Get Mapping RCU files from the AliEMCALRecParam
98 const TObjArray* maps = AliEMCALRecParam::GetMappings();
99 if(!maps) AliFatal("Cannot retrieve ALTRO mappings!!");
100
101 for(Int_t i = 0; i < 2; i++) {
102 fMapping[i] = (AliAltroMapping*)maps->At(i);
103 }
104
72c58de0 105 //To make sure we match with the geometry in a simulation file,
106 //let's try to get it first. If not, take the default geometry
107 AliRunLoader *rl = AliRunLoader::GetRunLoader();
108 if (rl->GetAliRun() && rl->GetAliRun()->GetDetector("EMCAL")) {
109 fGeom = dynamic_cast<AliEMCAL*>(rl->GetAliRun()->GetDetector("EMCAL"))->GetGeometry();
110 } else {
111 AliInfo(Form("Using default geometry in raw reco"));
937d0661 112 fGeom = AliEMCALGeometry::GetInstance(AliEMCALGeometry::GetDefaultGeometryName());
65bdc82f 113 }
114
72c58de0 115 if(!fGeom) AliFatal(Form("Could not get geometry!"));
116
65bdc82f 117}
118
119//____________________________________________________________________________
120AliEMCALRawUtils::AliEMCALRawUtils(const AliEMCALRawUtils& rawU)
121 : TObject(),
122 fHighLowGainFactor(rawU.fHighLowGainFactor),
b4133f05 123 fOrder(rawU.fOrder),
124 fTau(rawU.fTau),
125 fNoiseThreshold(rawU.fNoiseThreshold),
126 fNPedSamples(rawU.fNPedSamples),
65bdc82f 127 fGeom(rawU.fGeom),
128 fOption(rawU.fOption)
129{
130 //copy ctor
131 fMapping[0] = rawU.fMapping[0];
132 fMapping[1] = rawU.fMapping[1];
133}
134
135//____________________________________________________________________________
136AliEMCALRawUtils& AliEMCALRawUtils::operator =(const AliEMCALRawUtils &rawU)
137{
138 //assignment operator
139
140 if(this != &rawU) {
141 fHighLowGainFactor = rawU.fHighLowGainFactor;
b4133f05 142 fOrder = rawU.fOrder;
143 fTau = rawU.fTau;
144 fNoiseThreshold = rawU.fNoiseThreshold;
145 fNPedSamples = rawU.fNPedSamples;
65bdc82f 146 fGeom = rawU.fGeom;
147 fOption = rawU.fOption;
148 fMapping[0] = rawU.fMapping[0];
149 fMapping[1] = rawU.fMapping[1];
150 }
151
152 return *this;
153
ee299369 154}
65bdc82f 155
ee299369 156//____________________________________________________________________________
157AliEMCALRawUtils::~AliEMCALRawUtils() {
65bdc82f 158
ee299369 159}
65bdc82f 160
ee299369 161//____________________________________________________________________________
65bdc82f 162void AliEMCALRawUtils::Digits2Raw()
ee299369 163{
164 // convert digits of the current event to raw data
165
166 AliRunLoader *rl = AliRunLoader::GetRunLoader();
167 AliEMCALLoader *loader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL"));
168
169 // get the digits
170 loader->LoadDigits("EMCAL");
171 loader->GetEvent();
172 TClonesArray* digits = loader->Digits() ;
173
174 if (!digits) {
175 Warning("Digits2Raw", "no digits found !");
176 return;
177 }
65bdc82f 178
ee299369 179 static const Int_t nDDL = 12*2; // 12 SM hardcoded for now. Buffers allocated dynamically, when needed, so just need an upper limit here
180 AliAltroBuffer* buffers[nDDL];
181 for (Int_t i=0; i < nDDL; i++)
182 buffers[i] = 0;
183
184 Int_t adcValuesLow[fgkTimeBins];
185 Int_t adcValuesHigh[fgkTimeBins];
186
ee299369 187 // loop over digits (assume ordered digits)
188 for (Int_t iDigit = 0; iDigit < digits->GetEntries(); iDigit++) {
189 AliEMCALDigit* digit = dynamic_cast<AliEMCALDigit *>(digits->At(iDigit)) ;
190 if (digit->GetAmp() < fgThreshold)
191 continue;
192
193 //get cell indices
194 Int_t nSM = 0;
195 Int_t nIphi = 0;
196 Int_t nIeta = 0;
197 Int_t iphi = 0;
198 Int_t ieta = 0;
199 Int_t nModule = 0;
65bdc82f 200 fGeom->GetCellIndex(digit->GetId(), nSM, nModule, nIphi, nIeta);
201 fGeom->GetCellPhiEtaIndexInSModule(nSM, nModule, nIphi, nIeta,iphi, ieta) ;
ee299369 202
203 //Check which is the RCU of the cell.
204 Int_t iRCU = -111;
205 //RCU0
206 if (0<=iphi&&iphi<8) iRCU=0; // first cable row
207 else if (8<=iphi&&iphi<16 && 0<=ieta&&ieta<24) iRCU=0; // first half;
208 //second cable row
209 //RCU1
210 else if(8<=iphi&&iphi<16 && 24<=ieta&&ieta<48) iRCU=1; // second half;
211 //second cable row
212 else if(16<=iphi&&iphi<24) iRCU=1; // third cable row
e36e3bcf 213 if (iRCU<0)
214 Fatal("Digits2Raw()","Non-existent RCU number: %d", iRCU);
ee299369 215
216 //Which DDL?
217 Int_t iDDL = fgDDLPerSuperModule* nSM + iRCU;
218 if (iDDL >= nDDL)
219 Fatal("Digits2Raw()","Non-existent DDL board number: %d", iDDL);
220
221 if (buffers[iDDL] == 0) {
222 // open new file and write dummy header
223 TString fileName = AliDAQ::DdlFileName("EMCAL",iDDL);
65bdc82f 224 buffers[iDDL] = new AliAltroBuffer(fileName.Data(),fMapping[iRCU]);
ee299369 225 buffers[iDDL]->WriteDataHeader(kTRUE, kFALSE); //Dummy;
226 }
227
228 // out of time range signal (?)
229 if (digit->GetTimeR() > GetRawFormatTimeMax() ) {
230 AliInfo("Signal is out of time range.\n");
231 buffers[iDDL]->FillBuffer((Int_t)digit->GetAmp());
232 buffers[iDDL]->FillBuffer(GetRawFormatTimeBins() ); // time bin
233 buffers[iDDL]->FillBuffer(3); // bunch length
234 buffers[iDDL]->WriteTrailer(3, ieta, iphi, nSM); // trailer
235 // calculate the time response function
236 } else {
237 Bool_t lowgain = RawSampledResponse(digit->GetTimeR(), digit->GetAmp(), adcValuesHigh, adcValuesLow) ;
238 if (lowgain)
239 buffers[iDDL]->WriteChannel(ieta, iphi, 0, GetRawFormatTimeBins(), adcValuesLow, fgThreshold);
240 else
241 buffers[iDDL]->WriteChannel(ieta,iphi, 1, GetRawFormatTimeBins(), adcValuesHigh, fgThreshold);
242 }
243 }
244
245 // write headers and close files
246 for (Int_t i=0; i < nDDL; i++) {
247 if (buffers[i]) {
248 buffers[i]->Flush();
249 buffers[i]->WriteDataHeader(kFALSE, kFALSE);
250 delete buffers[i];
251 }
252 }
65bdc82f 253
ee299369 254 loader->UnloadDigits();
255}
256
257//____________________________________________________________________________
65bdc82f 258void AliEMCALRawUtils::Raw2Digits(AliRawReader* reader,TClonesArray *digitsArr)
ee299369 259{
65bdc82f 260 // convert raw data of the current event to digits
ee299369 261
c47157cd 262 digitsArr->Clear();
ee299369 263
c47157cd 264 if (!digitsArr) {
ee299369 265 Error("Raw2Digits", "no digits found !");
266 return;
267 }
268 if (!reader) {
269 Error("Raw2Digits", "no raw reader found !");
270 return;
271 }
272
65bdc82f 273 AliCaloRawStream in(reader,"EMCAL",fMapping);
ee299369 274 // Select EMCAL DDL's;
275 reader->Select("EMCAL");
feedcab9 276
277 TString option = GetOption();
278 if (option.Contains("OldRCUFormat"))
279 in.SetOldRCUFormat(kTRUE); // Needed for testbeam data
280 else
281 in.SetOldRCUFormat(kFALSE);
282
283
8cb998bd 284 //Updated fitting routine from 2007 beam test takes into account
285 //possibility of two peaks in data and selects first one for fitting
286 //Also sets some of the starting parameters based on the shape of the
287 //given raw signal being fit
288
289 TF1 * signalF = new TF1("signal", RawResponseFunction, 0, GetRawFormatTimeBins(), 5);
b4133f05 290 signalF->SetParameters(10.,0.,fTau,fOrder,5.); //set all defaults once, just to be safe
8cb998bd 291 signalF->SetParNames("amp","t0","tau","N","ped");
b4133f05 292 signalF->SetParameter(2,fTau); // tau in units of time bin
8cb998bd 293 signalF->SetParLimits(2,2,-1);
b4133f05 294 signalF->SetParameter(3,fOrder); // order
8cb998bd 295 signalF->SetParLimits(3,2,-1);
48a56166 296
ee299369 297 Int_t id = -1;
82cbdfca 298 Float_t time = 0. ;
299 Float_t amp = 0. ;
ee299369 300
8cb998bd 301 //Graph to hold data we will fit (should be converted to an array
302 //later to speed up processing
303 TGraph * gSig = new TGraph(GetRawFormatTimeBins());
ee299369 304
82cbdfca 305 Int_t readOk = 1;
ee299369 306 Int_t lowGain = 0;
307
82cbdfca 308 while (readOk && in.GetModule() < 0)
309 readOk = in.Next(); // Go to first digit
e9dbb64a 310
8cb998bd 311 Int_t col = 0;
312 Int_t row = 0;
313
82cbdfca 314 while (readOk) {
65bdc82f 315 id = fGeom->GetAbsCellIdFromCellIndexes(in.GetModule(), in.GetRow(), in.GetColumn()) ;
ee299369 316 lowGain = in.IsLowGain();
82cbdfca 317 Int_t maxTime = in.GetTime(); // timebins come in reverse order
e9dbb64a 318 if (maxTime < 0 || maxTime >= GetRawFormatTimeBins()) {
319 AliWarning(Form("Invalid time bin %d",maxTime));
320 maxTime = GetRawFormatTimeBins();
321 }
82cbdfca 322 gSig->Set(maxTime+1);
323 // There is some kind of zero-suppression in the raw data,
324 // so set up the TGraph in advance
325 for (Int_t i=0; i < maxTime; i++) {
8cb998bd 326 gSig->SetPoint(i, i , 0);
82cbdfca 327 }
ee299369 328
82cbdfca 329 Int_t iTime = 0;
ee299369 330 do {
82cbdfca 331 if (in.GetTime() >= gSig->GetN()) {
332 AliWarning("Too many time bins");
333 gSig->Set(in.GetTime());
ee299369 334 }
8cb998bd 335 col = in.GetColumn();
336 row = in.GetRow();
337
338 gSig->SetPoint(in.GetTime(), in.GetTime(), in.GetSignal()) ;
82cbdfca 339 if (in.GetTime() > maxTime)
340 maxTime = in.GetTime();
ee299369 341 iTime++;
82cbdfca 342 } while ((readOk = in.Next()) && !in.IsNewHWAddress());
ee299369 343
344 FitRaw(gSig, signalF, amp, time) ;
ee299369 345
3ced962c 346 if (amp > 0 && amp < 10000) { //check both high and low end of
347 //result, 10000 is somewhat arbitrary
82cbdfca 348 AliDebug(2,Form("id %d lowGain %d amp %g", id, lowGain, amp));
8cb998bd 349 //cout << "col " << col-40 << " row " << row-8 << " lowGain " << lowGain << " amp " << amp << endl;
82cbdfca 350 AddDigit(digitsArr, id, lowGain, (Int_t)amp, time);
ee299369 351 }
ee299369 352
353 // Reset graph
82cbdfca 354 for (Int_t index = 0; index < gSig->GetN(); index++) {
8cb998bd 355 gSig->SetPoint(index, index, 0) ;
ee299369 356 }
48a56166 357 // Reset starting parameters for fit function
b4133f05 358 signalF->SetParameters(10.,0.,fTau,fOrder,5.); //reset all defaults just to be safe
48a56166 359
82cbdfca 360 }; // EMCAL entries loop
ee299369 361
362 delete signalF ;
363 delete gSig;
364
365 return ;
366}
367
368//____________________________________________________________________________
82cbdfca 369void AliEMCALRawUtils::AddDigit(TClonesArray *digitsArr, Int_t id, Int_t lowGain, Int_t amp, Float_t time) {
370 //
371 // Add a new digit.
372 // This routine checks whether a digit exists already for this tower
373 // and then decides whether to use the high or low gain info
374 //
375 // Called by Raw2Digits
376
377 AliEMCALDigit *digit = 0, *tmpdigit = 0;
378
379 TIter nextdigit(digitsArr);
380 while (digit == 0 && (tmpdigit = (AliEMCALDigit*) nextdigit())) {
381 if (tmpdigit->GetId() == id)
382 digit = tmpdigit;
383 }
384
385 if (!digit) { // no digit existed for this tower; create one
386 if (lowGain)
387 amp = Int_t(fHighLowGainFactor * amp);
388 Int_t idigit = digitsArr->GetEntries();
389 new((*digitsArr)[idigit]) AliEMCALDigit( -1, -1, id, amp, time, idigit) ;
390 }
391 else { // a digit already exists, check range
b4133f05 392 // (use high gain if signal < cut value, otherwise low gain)
82cbdfca 393 if (lowGain) { // new digit is low gain
b4133f05 394 if (digit->GetAmp() > fgkOverflowCut) { // use if stored digit is out of range
82cbdfca 395 digit->SetAmp(Int_t(fHighLowGainFactor * amp));
396 digit->SetTime(time);
397 }
398 }
b4133f05 399 else if (amp < fgkOverflowCut) { // new digit is high gain; use if not out of range
82cbdfca 400 digit->SetAmp(amp);
401 digit->SetTime(time);
402 }
403 }
404}
405
406//____________________________________________________________________________
407void AliEMCALRawUtils::FitRaw(TGraph * gSig, TF1* signalF, Float_t & amp, Float_t & time)
ee299369 408{
409 // Fits the raw signal time distribution; from AliEMCALGetter
410
ee299369 411 amp = time = 0. ;
82cbdfca 412 Double_t ped = 0;
413 Int_t nPed = 0;
ee299369 414
b4133f05 415 for (Int_t index = 0; index < fNPedSamples; index++) {
e9dbb64a 416 Double_t ttime, signal;
82cbdfca 417 gSig->GetPoint(index, ttime, signal) ;
418 if (signal > 0) {
419 ped += signal;
420 nPed++;
ee299369 421 }
422 }
e9dbb64a 423
82cbdfca 424 if (nPed > 0)
425 ped /= nPed;
e9dbb64a 426 else {
8cb998bd 427 AliWarning("Could not determine pedestal");
82cbdfca 428 ped = 10; // put some small value as first guess
e9dbb64a 429 }
82cbdfca 430
e9dbb64a 431 Int_t max_found = 0;
432 Int_t i_max = 0;
433 Float_t max = -1;
8cb998bd 434 Float_t max_fit = gSig->GetN();
e9dbb64a 435 Float_t min_after_sig = 9999;
8cb998bd 436 Int_t tmin_after_sig = gSig->GetN();
e9dbb64a 437 Int_t n_ped_after_sig = 0;
438
b4133f05 439 for (Int_t i=fNPedSamples; i < gSig->GetN(); i++) {
e9dbb64a 440 Double_t ttime, signal;
441 gSig->GetPoint(i, ttime, signal) ;
442 if (!max_found && signal > max) {
443 i_max = i;
e9dbb64a 444 max = signal;
445 }
b4133f05 446 else if ( max > ped + fNoiseThreshold ) {
e9dbb64a 447 max_found = 1;
448 min_after_sig = signal;
8cb998bd 449 tmin_after_sig = i;
e9dbb64a 450 }
451 if (max_found) {
452 if ( signal < min_after_sig) {
453 min_after_sig = signal;
8cb998bd 454 tmin_after_sig = i;
e9dbb64a 455 }
456 if (i > tmin_after_sig + 5) { // Two close peaks; end fit at minimum
457 max_fit = tmin_after_sig;
458 break;
459 }
b4133f05 460 if ( signal < ped + fNoiseThreshold)
e9dbb64a 461 n_ped_after_sig++;
462 if (n_ped_after_sig >= 5) { // include 5 pedestal bins after peak
8cb998bd 463 max_fit = i;
e9dbb64a 464 break;
465 }
5a056daa 466 }
82cbdfca 467 }
5a056daa 468
b4133f05 469 if ( max - ped > fNoiseThreshold ) { // else its noise
e9dbb64a 470 AliDebug(2,Form("Fitting max %d ped %d", max, ped));
8cb998bd 471 signalF->SetRange(0,max_fit);
472
473 if(max-ped > 50)
474 signalF->SetParLimits(2,1,3);
475
476 signalF->SetParameter(4, ped) ;
477 signalF->SetParameter(1, i_max);
478 signalF->SetParameter(0, max);
479
480 gSig->Fit(signalF, "QROW"); // Note option 'W': equal errors on all points
481 amp = signalF->GetParameter(0);
482 time = signalF->GetParameter(1)*GetRawFormatTimeBinWidth() - fgTimeTrigger;
ee299369 483 }
484 return;
485}
486//__________________________________________________________________
487Double_t AliEMCALRawUtils::RawResponseFunction(Double_t *x, Double_t *par)
488{
8cb998bd 489 // Matches version used in 2007 beam test
490 //
ee299369 491 // Shape of the electronics raw reponse:
492 // It is a semi-gaussian, 2nd order Gamma function of the general form
493 //
494 // t' = (t - t0 + tau) / tau
495 // F = A * t**N * exp( N * ( 1 - t) ) for t >= 0
496 // F = 0 for t < 0
497 //
498 // parameters:
8cb998bd 499 // A: par[0] // Amplitude = peak value
500 // t0: par[1]
501 // tau: par[2]
502 // N: par[3]
503 // ped: par[4]
ee299369 504 //
505 Double_t signal ;
8cb998bd 506 Double_t tau =par[2];
507 Double_t N =par[3];
508 Double_t ped = par[4];
509 Double_t xx = ( x[0] - par[1] + tau ) / tau ;
ee299369 510
5a056daa 511 if (xx <= 0)
8cb998bd 512 signal = ped ;
ee299369 513 else {
8cb998bd 514 signal = ped + par[0] * TMath::Power(xx , N) * TMath::Exp(N * (1 - xx )) ;
ee299369 515 }
516 return signal ;
517}
518
519//__________________________________________________________________
520Bool_t AliEMCALRawUtils::RawSampledResponse(
521const Double_t dtime, const Double_t damp, Int_t * adcH, Int_t * adcL) const
522{
523 // for a start time dtime and an amplitude damp given by digit,
524 // calculates the raw sampled response AliEMCAL::RawResponseFunction
525
82cbdfca 526 const Int_t pedVal = 32;
ee299369 527 Bool_t lowGain = kFALSE ;
528
48a56166 529 // A: par[0] // Amplitude = peak value
530 // t0: par[1]
531 // tau: par[2]
532 // N: par[3]
533 // ped: par[4]
534
535 TF1 signalF("signal", RawResponseFunction, 0, GetRawFormatTimeMax(), 5);
536 signalF.SetParameter(0, damp) ;
537 signalF.SetParameter(1, dtime + fgTimeTrigger) ;
b4133f05 538 signalF.SetParameter(2, fTau) ;
539 signalF.SetParameter(3, fOrder);
48a56166 540 signalF.SetParameter(4, pedVal);
ee299369 541
542 for (Int_t iTime = 0; iTime < GetRawFormatTimeBins(); iTime++) {
82cbdfca 543 Double_t time = iTime * GetRawFormatTimeBinWidth() ;
ee299369 544 Double_t signal = signalF.Eval(time) ;
545 adcH[iTime] = static_cast<Int_t>(signal + 0.5) ;
b4133f05 546 if ( adcH[iTime] > fgkRawSignalOverflow ){ // larger than 10 bits
547 adcH[iTime] = fgkRawSignalOverflow ;
ee299369 548 lowGain = kTRUE ;
549 }
550
551 signal /= fHighLowGainFactor;
552
553 adcL[iTime] = static_cast<Int_t>(signal + 0.5) ;
b4133f05 554 if ( adcL[iTime] > fgkRawSignalOverflow) // larger than 10 bits
555 adcL[iTime] = fgkRawSignalOverflow ;
ee299369 556 }
557 return lowGain ;
558}