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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 | * $Log$ |
8cb998bd | 20 | * Revision 1.8 2007/12/05 02:30:51 jklay |
21 | * 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 | |
22 | * | |
feedcab9 | 23 | * Revision 1.7 2007/11/14 15:51:46 gustavo |
24 | * Take out few unnecessary prints | |
25 | * | |
6d0b6861 | 26 | * Revision 1.6 2007/11/01 01:23:51 mvl |
27 | * Removed call to SetOldRCUFormat, which is only needed for testbeam data | |
28 | * | |
f31c5945 | 29 | * Revision 1.5 2007/11/01 01:20:33 mvl |
30 | * Further improvement of peak finding; more robust fit | |
31 | * | |
e9dbb64a | 32 | * Revision 1.4 2007/10/31 17:15:24 mvl |
33 | * Fixed bug in raw data unpacking; Added pedestal to signal fit; Added logic to deal with high/low gain | |
34 | * | |
82cbdfca | 35 | * Revision 1.3 2007/09/27 08:36:46 mvl |
36 | * More robust setting of fit range in FitRawSignal (P. Hristov) | |
37 | * | |
5a056daa | 38 | * Revision 1.2 2007/09/03 20:55:35 jklay |
39 | * EMCAL e-by-e reconstruction methods from Cvetan | |
40 | * | |
c47157cd | 41 | * Revision 1.1 2007/03/17 19:56:38 mvl |
42 | * Moved signal shape routines from AliEMCAL to separate class AliEMCALRawUtils to streamline raw data reconstruction code. | |
43 | * */ | |
ee299369 | 44 | |
45 | //*-- Author: Marco van Leeuwen (LBL) | |
46 | #include "AliEMCALRawUtils.h" | |
47 | ||
48 | #include "TF1.h" | |
49 | #include "TGraph.h" | |
50 | #include "TSystem.h" | |
51 | ||
52 | #include "AliLog.h" | |
53 | #include "AliRunLoader.h" | |
54 | #include "AliCaloAltroMapping.h" | |
55 | #include "AliAltroBuffer.h" | |
56 | #include "AliRawReader.h" | |
57 | #include "AliCaloRawStream.h" | |
58 | #include "AliDAQ.h" | |
59 | ||
feedcab9 | 60 | #include "AliEMCALRecParam.h" |
ee299369 | 61 | #include "AliEMCALLoader.h" |
62 | #include "AliEMCALGeometry.h" | |
63 | #include "AliEMCALDigitizer.h" | |
64 | #include "AliEMCALDigit.h" | |
65 | ||
66 | ||
67 | ClassImp(AliEMCALRawUtils) | |
68 | ||
69 | // Signal shape parameters | |
82cbdfca | 70 | Int_t AliEMCALRawUtils::fgOrder = 2 ; // Order of gamma function |
71 | Double_t AliEMCALRawUtils::fgTimeBinWidth = 100E-9 ; // each sample is 100 ns | |
72 | Double_t AliEMCALRawUtils::fgTau = 235E-9 ; // 235 ns (from CERN testbeam; not very accurate) | |
ee299369 | 73 | Double_t AliEMCALRawUtils::fgTimeTrigger = 1.5E-6 ; // 15 time bins ~ 1.5 musec |
74 | ||
75 | // some digitization constants | |
76 | Int_t AliEMCALRawUtils::fgThreshold = 1; | |
77 | Int_t AliEMCALRawUtils::fgDDLPerSuperModule = 2; // 2 ddls per SuperModule | |
78 | ||
8cb998bd | 79 | AliEMCALRawUtils::AliEMCALRawUtils() |
80 | : fHighLowGainFactor(0.), fOption("") | |
81 | { | |
ee299369 | 82 | fHighLowGainFactor = 16. ; // adjusted for a low gain range of 82 GeV (10 bits) |
83 | } | |
84 | //____________________________________________________________________________ | |
85 | AliEMCALRawUtils::~AliEMCALRawUtils() { | |
86 | } | |
87 | //____________________________________________________________________________ | |
feedcab9 | 88 | void AliEMCALRawUtils::Digits2Raw(AliAltroMapping **mapping) |
ee299369 | 89 | { |
90 | // convert digits of the current event to raw data | |
91 | ||
92 | AliRunLoader *rl = AliRunLoader::GetRunLoader(); | |
93 | AliEMCALLoader *loader = dynamic_cast<AliEMCALLoader*>(rl->GetDetectorLoader("EMCAL")); | |
94 | ||
95 | // get the digits | |
96 | loader->LoadDigits("EMCAL"); | |
97 | loader->GetEvent(); | |
98 | TClonesArray* digits = loader->Digits() ; | |
99 | ||
100 | if (!digits) { | |
101 | Warning("Digits2Raw", "no digits found !"); | |
102 | return; | |
103 | } | |
104 | ||
105 | // get the geometry | |
106 | AliEMCALGeometry* geom = AliEMCALGeometry::GetInstance(); | |
107 | if (!geom) { | |
108 | AliError(Form("No geometry found !")); | |
109 | return; | |
110 | } | |
111 | ||
112 | static const Int_t nDDL = 12*2; // 12 SM hardcoded for now. Buffers allocated dynamically, when needed, so just need an upper limit here | |
113 | AliAltroBuffer* buffers[nDDL]; | |
114 | for (Int_t i=0; i < nDDL; i++) | |
115 | buffers[i] = 0; | |
116 | ||
117 | Int_t adcValuesLow[fgkTimeBins]; | |
118 | Int_t adcValuesHigh[fgkTimeBins]; | |
119 | ||
ee299369 | 120 | // loop over digits (assume ordered digits) |
121 | for (Int_t iDigit = 0; iDigit < digits->GetEntries(); iDigit++) { | |
122 | AliEMCALDigit* digit = dynamic_cast<AliEMCALDigit *>(digits->At(iDigit)) ; | |
123 | if (digit->GetAmp() < fgThreshold) | |
124 | continue; | |
125 | ||
126 | //get cell indices | |
127 | Int_t nSM = 0; | |
128 | Int_t nIphi = 0; | |
129 | Int_t nIeta = 0; | |
130 | Int_t iphi = 0; | |
131 | Int_t ieta = 0; | |
132 | Int_t nModule = 0; | |
133 | geom->GetCellIndex(digit->GetId(), nSM, nModule, nIphi, nIeta); | |
134 | geom->GetCellPhiEtaIndexInSModule(nSM, nModule, nIphi, nIeta,iphi, ieta) ; | |
135 | ||
136 | //Check which is the RCU of the cell. | |
137 | Int_t iRCU = -111; | |
138 | //RCU0 | |
139 | if (0<=iphi&&iphi<8) iRCU=0; // first cable row | |
140 | else if (8<=iphi&&iphi<16 && 0<=ieta&&ieta<24) iRCU=0; // first half; | |
141 | //second cable row | |
142 | //RCU1 | |
143 | else if(8<=iphi&&iphi<16 && 24<=ieta&&ieta<48) iRCU=1; // second half; | |
144 | //second cable row | |
145 | else if(16<=iphi&&iphi<24) iRCU=1; // third cable row | |
146 | ||
147 | //Which DDL? | |
148 | Int_t iDDL = fgDDLPerSuperModule* nSM + iRCU; | |
149 | if (iDDL >= nDDL) | |
150 | Fatal("Digits2Raw()","Non-existent DDL board number: %d", iDDL); | |
151 | ||
152 | if (buffers[iDDL] == 0) { | |
153 | // open new file and write dummy header | |
154 | TString fileName = AliDAQ::DdlFileName("EMCAL",iDDL); | |
155 | buffers[iDDL] = new AliAltroBuffer(fileName.Data(),mapping[iRCU]); | |
156 | buffers[iDDL]->WriteDataHeader(kTRUE, kFALSE); //Dummy; | |
157 | } | |
158 | ||
159 | // out of time range signal (?) | |
160 | if (digit->GetTimeR() > GetRawFormatTimeMax() ) { | |
161 | AliInfo("Signal is out of time range.\n"); | |
162 | buffers[iDDL]->FillBuffer((Int_t)digit->GetAmp()); | |
163 | buffers[iDDL]->FillBuffer(GetRawFormatTimeBins() ); // time bin | |
164 | buffers[iDDL]->FillBuffer(3); // bunch length | |
165 | buffers[iDDL]->WriteTrailer(3, ieta, iphi, nSM); // trailer | |
166 | // calculate the time response function | |
167 | } else { | |
168 | Bool_t lowgain = RawSampledResponse(digit->GetTimeR(), digit->GetAmp(), adcValuesHigh, adcValuesLow) ; | |
169 | if (lowgain) | |
170 | buffers[iDDL]->WriteChannel(ieta, iphi, 0, GetRawFormatTimeBins(), adcValuesLow, fgThreshold); | |
171 | else | |
172 | buffers[iDDL]->WriteChannel(ieta,iphi, 1, GetRawFormatTimeBins(), adcValuesHigh, fgThreshold); | |
173 | } | |
174 | } | |
175 | ||
176 | // write headers and close files | |
177 | for (Int_t i=0; i < nDDL; i++) { | |
178 | if (buffers[i]) { | |
179 | buffers[i]->Flush(); | |
180 | buffers[i]->WriteDataHeader(kFALSE, kFALSE); | |
181 | delete buffers[i]; | |
182 | } | |
183 | } | |
184 | mapping[0]->Delete(); | |
185 | mapping[1]->Delete(); | |
186 | loader->UnloadDigits(); | |
187 | } | |
188 | ||
189 | //____________________________________________________________________________ | |
feedcab9 | 190 | void AliEMCALRawUtils::Raw2Digits(AliRawReader* reader,TClonesArray *digitsArr, |
191 | AliAltroMapping **mapping) | |
ee299369 | 192 | { |
193 | // convert raw data of the current event to digits | |
194 | AliEMCALGeometry * geom = AliEMCALGeometry::GetInstance(); | |
195 | if (!geom) { | |
196 | AliError(Form("No geometry found !")); | |
197 | return; | |
198 | } | |
199 | ||
c47157cd | 200 | digitsArr->Clear(); |
ee299369 | 201 | |
c47157cd | 202 | if (!digitsArr) { |
ee299369 | 203 | Error("Raw2Digits", "no digits found !"); |
204 | return; | |
205 | } | |
206 | if (!reader) { | |
207 | Error("Raw2Digits", "no raw reader found !"); | |
208 | return; | |
209 | } | |
210 | ||
feedcab9 | 211 | AliCaloRawStream in(reader,"EMCAL",mapping); |
ee299369 | 212 | // Select EMCAL DDL's; |
213 | reader->Select("EMCAL"); | |
feedcab9 | 214 | |
215 | TString option = GetOption(); | |
216 | if (option.Contains("OldRCUFormat")) | |
217 | in.SetOldRCUFormat(kTRUE); // Needed for testbeam data | |
218 | else | |
219 | in.SetOldRCUFormat(kFALSE); | |
220 | ||
221 | ||
8cb998bd | 222 | //Updated fitting routine from 2007 beam test takes into account |
223 | //possibility of two peaks in data and selects first one for fitting | |
224 | //Also sets some of the starting parameters based on the shape of the | |
225 | //given raw signal being fit | |
226 | ||
227 | TF1 * signalF = new TF1("signal", RawResponseFunction, 0, GetRawFormatTimeBins(), 5); | |
228 | signalF->SetParNames("amp","t0","tau","N","ped"); | |
229 | signalF->SetParameter(2,2.35); // tau in units of time bin | |
230 | signalF->SetParLimits(2,2,-1); | |
231 | signalF->SetParameter(3,2); // order | |
232 | signalF->SetParLimits(3,2,-1); | |
233 | ||
ee299369 | 234 | Int_t id = -1; |
82cbdfca | 235 | Float_t time = 0. ; |
236 | Float_t amp = 0. ; | |
ee299369 | 237 | |
8cb998bd | 238 | //Graph to hold data we will fit (should be converted to an array |
239 | //later to speed up processing | |
240 | TGraph * gSig = new TGraph(GetRawFormatTimeBins()); | |
ee299369 | 241 | |
82cbdfca | 242 | Int_t readOk = 1; |
ee299369 | 243 | Int_t lowGain = 0; |
244 | ||
82cbdfca | 245 | while (readOk && in.GetModule() < 0) |
246 | readOk = in.Next(); // Go to first digit | |
e9dbb64a | 247 | |
8cb998bd | 248 | Int_t col = 0; |
249 | Int_t row = 0; | |
250 | ||
82cbdfca | 251 | while (readOk) { |
ee299369 | 252 | id = geom->GetAbsCellIdFromCellIndexes(in.GetModule(), in.GetRow(), in.GetColumn()) ; |
253 | lowGain = in.IsLowGain(); | |
82cbdfca | 254 | Int_t maxTime = in.GetTime(); // timebins come in reverse order |
e9dbb64a | 255 | if (maxTime < 0 || maxTime >= GetRawFormatTimeBins()) { |
256 | AliWarning(Form("Invalid time bin %d",maxTime)); | |
257 | maxTime = GetRawFormatTimeBins(); | |
258 | } | |
82cbdfca | 259 | gSig->Set(maxTime+1); |
260 | // There is some kind of zero-suppression in the raw data, | |
261 | // so set up the TGraph in advance | |
262 | for (Int_t i=0; i < maxTime; i++) { | |
8cb998bd | 263 | gSig->SetPoint(i, i , 0); |
82cbdfca | 264 | } |
ee299369 | 265 | |
82cbdfca | 266 | Int_t iTime = 0; |
ee299369 | 267 | do { |
82cbdfca | 268 | if (in.GetTime() >= gSig->GetN()) { |
269 | AliWarning("Too many time bins"); | |
270 | gSig->Set(in.GetTime()); | |
ee299369 | 271 | } |
8cb998bd | 272 | col = in.GetColumn(); |
273 | row = in.GetRow(); | |
274 | ||
275 | gSig->SetPoint(in.GetTime(), in.GetTime(), in.GetSignal()) ; | |
82cbdfca | 276 | if (in.GetTime() > maxTime) |
277 | maxTime = in.GetTime(); | |
ee299369 | 278 | iTime++; |
82cbdfca | 279 | } while ((readOk = in.Next()) && !in.IsNewHWAddress()); |
ee299369 | 280 | |
281 | FitRaw(gSig, signalF, amp, time) ; | |
ee299369 | 282 | |
283 | if (amp > 0) { | |
82cbdfca | 284 | AliDebug(2,Form("id %d lowGain %d amp %g", id, lowGain, amp)); |
8cb998bd | 285 | //cout << "col " << col-40 << " row " << row-8 << " lowGain " << lowGain << " amp " << amp << endl; |
82cbdfca | 286 | AddDigit(digitsArr, id, lowGain, (Int_t)amp, time); |
ee299369 | 287 | } |
ee299369 | 288 | |
289 | // Reset graph | |
82cbdfca | 290 | for (Int_t index = 0; index < gSig->GetN(); index++) { |
8cb998bd | 291 | gSig->SetPoint(index, index, 0) ; |
ee299369 | 292 | } |
82cbdfca | 293 | }; // EMCAL entries loop |
ee299369 | 294 | |
295 | delete signalF ; | |
296 | delete gSig; | |
297 | ||
298 | return ; | |
299 | } | |
300 | ||
301 | //____________________________________________________________________________ | |
82cbdfca | 302 | void AliEMCALRawUtils::AddDigit(TClonesArray *digitsArr, Int_t id, Int_t lowGain, Int_t amp, Float_t time) { |
303 | // | |
304 | // Add a new digit. | |
305 | // This routine checks whether a digit exists already for this tower | |
306 | // and then decides whether to use the high or low gain info | |
307 | // | |
308 | // Called by Raw2Digits | |
309 | ||
310 | AliEMCALDigit *digit = 0, *tmpdigit = 0; | |
311 | ||
312 | TIter nextdigit(digitsArr); | |
313 | while (digit == 0 && (tmpdigit = (AliEMCALDigit*) nextdigit())) { | |
314 | if (tmpdigit->GetId() == id) | |
315 | digit = tmpdigit; | |
316 | } | |
317 | ||
318 | if (!digit) { // no digit existed for this tower; create one | |
319 | if (lowGain) | |
320 | amp = Int_t(fHighLowGainFactor * amp); | |
321 | Int_t idigit = digitsArr->GetEntries(); | |
322 | new((*digitsArr)[idigit]) AliEMCALDigit( -1, -1, id, amp, time, idigit) ; | |
323 | } | |
324 | else { // a digit already exists, check range | |
325 | // (use high gain if signal < 800, otherwise low gain) | |
326 | if (lowGain) { // new digit is low gain | |
327 | if (digit->GetAmp() > 800) { // use if stored digit is out of range | |
328 | digit->SetAmp(Int_t(fHighLowGainFactor * amp)); | |
329 | digit->SetTime(time); | |
330 | } | |
331 | } | |
332 | else if (amp < 800) { // new digit is high gain; use if not out of range | |
333 | digit->SetAmp(amp); | |
334 | digit->SetTime(time); | |
335 | } | |
336 | } | |
337 | } | |
338 | ||
339 | //____________________________________________________________________________ | |
340 | void AliEMCALRawUtils::FitRaw(TGraph * gSig, TF1* signalF, Float_t & amp, Float_t & time) | |
ee299369 | 341 | { |
342 | // Fits the raw signal time distribution; from AliEMCALGetter | |
343 | ||
e9dbb64a | 344 | const Int_t kNoiseThreshold = 5; |
8cb998bd | 345 | const Int_t kNPedSamples = 5; |
ee299369 | 346 | amp = time = 0. ; |
82cbdfca | 347 | Double_t ped = 0; |
348 | Int_t nPed = 0; | |
ee299369 | 349 | |
e9dbb64a | 350 | for (Int_t index = 0; index < kNPedSamples; index++) { |
351 | Double_t ttime, signal; | |
82cbdfca | 352 | gSig->GetPoint(index, ttime, signal) ; |
353 | if (signal > 0) { | |
354 | ped += signal; | |
355 | nPed++; | |
ee299369 | 356 | } |
357 | } | |
e9dbb64a | 358 | |
82cbdfca | 359 | if (nPed > 0) |
360 | ped /= nPed; | |
e9dbb64a | 361 | else { |
8cb998bd | 362 | AliWarning("Could not determine pedestal"); |
82cbdfca | 363 | ped = 10; // put some small value as first guess |
e9dbb64a | 364 | } |
82cbdfca | 365 | |
e9dbb64a | 366 | Int_t max_found = 0; |
367 | Int_t i_max = 0; | |
368 | Float_t max = -1; | |
8cb998bd | 369 | Float_t max_fit = gSig->GetN(); |
e9dbb64a | 370 | Float_t min_after_sig = 9999; |
8cb998bd | 371 | Int_t tmin_after_sig = gSig->GetN(); |
e9dbb64a | 372 | Int_t n_ped_after_sig = 0; |
373 | ||
374 | for (Int_t i=kNPedSamples; i < gSig->GetN(); i++) { | |
375 | Double_t ttime, signal; | |
376 | gSig->GetPoint(i, ttime, signal) ; | |
377 | if (!max_found && signal > max) { | |
378 | i_max = i; | |
e9dbb64a | 379 | max = signal; |
380 | } | |
381 | else if ( max > ped + kNoiseThreshold ) { | |
382 | max_found = 1; | |
383 | min_after_sig = signal; | |
8cb998bd | 384 | tmin_after_sig = i; |
e9dbb64a | 385 | } |
386 | if (max_found) { | |
387 | if ( signal < min_after_sig) { | |
388 | min_after_sig = signal; | |
8cb998bd | 389 | tmin_after_sig = i; |
e9dbb64a | 390 | } |
391 | if (i > tmin_after_sig + 5) { // Two close peaks; end fit at minimum | |
392 | max_fit = tmin_after_sig; | |
393 | break; | |
394 | } | |
395 | if ( signal < ped + kNoiseThreshold) | |
396 | n_ped_after_sig++; | |
397 | if (n_ped_after_sig >= 5) { // include 5 pedestal bins after peak | |
8cb998bd | 398 | max_fit = i; |
e9dbb64a | 399 | break; |
400 | } | |
5a056daa | 401 | } |
82cbdfca | 402 | } |
5a056daa | 403 | |
e9dbb64a | 404 | if ( max - ped > kNoiseThreshold ) { // else its noise |
405 | AliDebug(2,Form("Fitting max %d ped %d", max, ped)); | |
8cb998bd | 406 | signalF->SetRange(0,max_fit); |
407 | ||
408 | if(max-ped > 50) | |
409 | signalF->SetParLimits(2,1,3); | |
410 | ||
411 | signalF->SetParameter(4, ped) ; | |
412 | signalF->SetParameter(1, i_max); | |
413 | signalF->SetParameter(0, max); | |
414 | ||
415 | gSig->Fit(signalF, "QROW"); // Note option 'W': equal errors on all points | |
416 | amp = signalF->GetParameter(0); | |
417 | time = signalF->GetParameter(1)*GetRawFormatTimeBinWidth() - fgTimeTrigger; | |
ee299369 | 418 | } |
419 | return; | |
420 | } | |
421 | //__________________________________________________________________ | |
422 | Double_t AliEMCALRawUtils::RawResponseFunction(Double_t *x, Double_t *par) | |
423 | { | |
8cb998bd | 424 | // Matches version used in 2007 beam test |
425 | // | |
ee299369 | 426 | // Shape of the electronics raw reponse: |
427 | // It is a semi-gaussian, 2nd order Gamma function of the general form | |
428 | // | |
429 | // t' = (t - t0 + tau) / tau | |
430 | // F = A * t**N * exp( N * ( 1 - t) ) for t >= 0 | |
431 | // F = 0 for t < 0 | |
432 | // | |
433 | // parameters: | |
8cb998bd | 434 | // A: par[0] // Amplitude = peak value |
435 | // t0: par[1] | |
436 | // tau: par[2] | |
437 | // N: par[3] | |
438 | // ped: par[4] | |
ee299369 | 439 | // |
440 | Double_t signal ; | |
8cb998bd | 441 | Double_t tau =par[2]; |
442 | Double_t N =par[3]; | |
443 | Double_t ped = par[4]; | |
444 | Double_t xx = ( x[0] - par[1] + tau ) / tau ; | |
ee299369 | 445 | |
5a056daa | 446 | if (xx <= 0) |
8cb998bd | 447 | signal = ped ; |
ee299369 | 448 | else { |
8cb998bd | 449 | signal = ped + par[0] * TMath::Power(xx , N) * TMath::Exp(N * (1 - xx )) ; |
ee299369 | 450 | } |
451 | return signal ; | |
452 | } | |
453 | ||
454 | //__________________________________________________________________ | |
455 | Bool_t AliEMCALRawUtils::RawSampledResponse( | |
456 | const Double_t dtime, const Double_t damp, Int_t * adcH, Int_t * adcL) const | |
457 | { | |
458 | // for a start time dtime and an amplitude damp given by digit, | |
459 | // calculates the raw sampled response AliEMCAL::RawResponseFunction | |
460 | ||
461 | const Int_t kRawSignalOverflow = 0x3FF ; | |
82cbdfca | 462 | const Int_t pedVal = 32; |
ee299369 | 463 | Bool_t lowGain = kFALSE ; |
464 | ||
465 | TF1 signalF("signal", RawResponseFunction, 0, GetRawFormatTimeMax(), 4); | |
82cbdfca | 466 | signalF.SetParameter(0, pedVal) ; |
467 | signalF.SetParameter(1, damp) ; | |
468 | signalF.SetParameter(2, dtime + fgTimeTrigger) ; | |
ee299369 | 469 | |
470 | for (Int_t iTime = 0; iTime < GetRawFormatTimeBins(); iTime++) { | |
82cbdfca | 471 | Double_t time = iTime * GetRawFormatTimeBinWidth() ; |
ee299369 | 472 | Double_t signal = signalF.Eval(time) ; |
473 | adcH[iTime] = static_cast<Int_t>(signal + 0.5) ; | |
474 | if ( adcH[iTime] > kRawSignalOverflow ){ // larger than 10 bits | |
475 | adcH[iTime] = kRawSignalOverflow ; | |
476 | lowGain = kTRUE ; | |
477 | } | |
478 | ||
479 | signal /= fHighLowGainFactor; | |
480 | ||
481 | adcL[iTime] = static_cast<Int_t>(signal + 0.5) ; | |
482 | if ( adcL[iTime] > kRawSignalOverflow) // larger than 10 bits | |
483 | adcL[iTime] = kRawSignalOverflow ; | |
484 | } | |
485 | return lowGain ; | |
486 | } |