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dc7ca31d | 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 | /* $Id$ */ | |
72e48d95 | 17 | /********************************************************************* |
18 | * T0 reconstruction and filling ESD | |
19 | * - reconstruct mean time (interation time) | |
20 | * - vertex position | |
21 | * - multiplicity | |
22 | ********************************************************************/ | |
dc7ca31d | 23 | |
af885e0f | 24 | #include <AliESDEvent.h> |
dc7ca31d | 25 | #include "AliLog.h" |
dc7ca31d | 26 | #include "AliT0RecPoint.h" |
27 | #include "AliRawReader.h" | |
28 | #include "AliT0RawReader.h" | |
dc7ca31d | 29 | #include "AliT0digit.h" |
30 | #include "AliT0Reconstructor.h" | |
31 | #include "AliT0Parameters.h" | |
c41ceaac | 32 | #include "AliT0Calibrator.h" |
dc7ca31d | 33 | |
34 | #include <TArrayI.h> | |
35 | #include <TGraph.h> | |
aad72f45 | 36 | #include <TMath.h> |
b09247a2 | 37 | #include <Riostream.h> |
dc7ca31d | 38 | |
39 | ClassImp(AliT0Reconstructor) | |
40 | ||
c41ceaac | 41 | AliT0Reconstructor:: AliT0Reconstructor(): AliReconstructor(), |
f16935f7 | 42 | fdZonA(0), |
43 | fdZonC(0), | |
44 | fZposition(0), | |
45 | fParam(NULL), | |
2e6a5ee0 | 46 | fAmpLEDrec(), |
c883fdf2 | 47 | fQTC(0), |
48 | fAmpLED(0), | |
2e6a5ee0 | 49 | fCalib() |
e0bba6cc | 50 | { |
72e48d95 | 51 | //constructor |
52 | ||
74adb36a | 53 | fParam = AliT0Parameters::Instance(); |
54 | fParam->Init(); | |
c883fdf2 | 55 | |
74adb36a | 56 | for (Int_t i=0; i<24; i++){ |
2e6a5ee0 | 57 | TGraph* gr = fParam ->GetAmpLEDRec(i); |
29ed1d0e | 58 | if (gr) fAmpLEDrec.AddAtAndExpand(gr,i) ; |
c883fdf2 | 59 | TGraph* gr1 = fParam ->GetAmpLED(i); |
60 | if (gr1) fAmpLED.AddAtAndExpand(gr1,i) ; | |
61 | TGraph* gr2 = fParam ->GetQTC(i); | |
539b9cb9 | 62 | if (gr2) fQTC.AddAtAndExpand(gr2,i) ; |
c883fdf2 | 63 | } |
539b9cb9 | 64 | |
29ed1d0e | 65 | |
f16935f7 | 66 | fdZonC = TMath::Abs(fParam->GetZPositionShift("T0/C/PMT1")); |
67 | fdZonA = TMath::Abs(fParam->GetZPositionShift("T0/A/PMT15")); | |
539b9cb9 | 68 | |
12e9daf9 | 69 | fCalib = new AliT0Calibrator(); |
70 | ||
dc7ca31d | 71 | } |
c41ceaac | 72 | |
73 | //_____________________________________________________________________________ | |
dc7ca31d | 74 | void AliT0Reconstructor::Reconstruct(TTree*digitsTree, TTree*clustersTree) const |
94c27e4f | 75 | |
dc7ca31d | 76 | { |
94c27e4f | 77 | // T0 digits reconstruction |
c555f418 | 78 | Int_t refAmp = GetRecoParam()->GetRefAmp(); |
776de217 | 79 | |
c41ceaac | 80 | TArrayI * timeCFD = new TArrayI(24); |
81 | TArrayI * timeLED = new TArrayI(24); | |
82 | TArrayI * chargeQT0 = new TArrayI(24); | |
83 | TArrayI * chargeQT1 = new TArrayI(24); | |
74adb36a | 84 | |
d0bcd1fb | 85 | |
8955c6b4 | 86 | Float_t channelWidth = fParam->GetChannelWidth() ; |
b95e8d87 | 87 | Float_t meanVertex = fParam->GetMeanVertex(); |
776de217 | 88 | Float_t c = 0.0299792; // cm/ps |
89 | Float_t vertex = 9999999; | |
90 | Int_t timeDiff=999999, meanTime=999999, timeclock=999999; | |
91 | ||
94c27e4f | 92 | |
dc7ca31d | 93 | AliDebug(1,Form("Start DIGITS reconstruction ")); |
94c27e4f | 94 | |
2e6a5ee0 | 95 | |
d0bcd1fb | 96 | TBranch *brDigits=digitsTree->GetBranch("T0"); |
e0bba6cc | 97 | AliT0digit *fDigits = new AliT0digit() ; |
dc7ca31d | 98 | if (brDigits) { |
99 | brDigits->SetAddress(&fDigits); | |
100 | }else{ | |
f16935f7 | 101 | AliError(Form("EXEC Branch T0 digits not found")); |
102 | return; | |
dc7ca31d | 103 | } |
e0bba6cc | 104 | |
c41ceaac | 105 | digitsTree->GetEvent(0); |
106 | digitsTree->GetEntry(0); | |
107 | brDigits->GetEntry(0); | |
108 | fDigits->GetTimeCFD(*timeCFD); | |
109 | fDigits->GetTimeLED(*timeLED); | |
110 | fDigits->GetQT0(*chargeQT0); | |
111 | fDigits->GetQT1(*chargeQT1); | |
446d6ec4 | 112 | Int_t onlineMean = fDigits->MeanTime(); |
776de217 | 113 | Int_t ref = fDigits->RefPoint(); |
c883fdf2 | 114 | |
c41ceaac | 115 | |
116 | Float_t besttimeA=999999; | |
117 | Float_t besttimeC=999999; | |
118 | Int_t pmtBestA=99999; | |
119 | Int_t pmtBestC=99999; | |
dc7ca31d | 120 | |
94c27e4f | 121 | AliT0RecPoint* frecpoints= new AliT0RecPoint (); |
122 | clustersTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1); | |
123 | ||
b95e8d87 | 124 | Float_t time[24], adc[24]; |
dc7ca31d | 125 | for (Int_t ipmt=0; ipmt<24; ipmt++) { |
c41ceaac | 126 | if(timeCFD->At(ipmt)>0 ){ |
d0bcd1fb | 127 | if(( chargeQT1->At(ipmt) - chargeQT0->At(ipmt))>0) |
128 | adc[ipmt] = chargeQT1->At(ipmt) - chargeQT0->At(ipmt); | |
a7027400 | 129 | else |
d0bcd1fb | 130 | adc[ipmt] = 0; |
131 | ||
c555f418 | 132 | time[ipmt] = fCalib-> WalkCorrection(refAmp, ipmt, adc[ipmt], timeCFD->At(ipmt)) ; |
d0bcd1fb | 133 | |
134 | Double_t sl = Double_t(timeLED->At(ipmt) - timeCFD->At(ipmt)); | |
135 | // time[ipmt] = fCalib-> WalkCorrection( ipmt, Int_t(sl), timeCFD[ipmt],"cosmic" ) ; | |
136 | AliDebug(10,Form(" ipmt %i QTC %i , time in chann %i (led-cfd) %i ", | |
137 | ipmt, Int_t(adc[ipmt]) ,Int_t(time[ipmt]),Int_t( sl))); | |
776de217 | 138 | |
d0bcd1fb | 139 | Double_t ampMip =((TGraph*)fAmpLED.At(ipmt))->Eval(sl); |
140 | Double_t qtMip = ((TGraph*)fQTC.At(ipmt))->Eval(adc[ipmt]); | |
141 | AliDebug(10,Form(" Amlitude in MIPS LED %f , QTC %f in channels %i\n ",ampMip,qtMip, adc[ipmt])); | |
142 | ||
143 | frecpoints->SetTime(ipmt, Float_t(time[ipmt]) ); | |
144 | frecpoints->SetAmp(ipmt, Float_t( ampMip)); //for cosmic &pp beam | |
145 | frecpoints->SetAmpLED(ipmt, Float_t(qtMip)); | |
146 | ||
dc7ca31d | 147 | } |
148 | else { | |
149 | time[ipmt] = 0; | |
150 | adc[ipmt] = 0; | |
151 | } | |
152 | } | |
94c27e4f | 153 | |
dc7ca31d | 154 | for (Int_t ipmt=0; ipmt<12; ipmt++){ |
155 | if(time[ipmt] > 1 ) { | |
c41ceaac | 156 | if(time[ipmt]<besttimeC){ |
157 | besttimeC=time[ipmt]; //timeC | |
158 | pmtBestC=ipmt; | |
dc7ca31d | 159 | } |
160 | } | |
161 | } | |
162 | for ( Int_t ipmt=12; ipmt<24; ipmt++){ | |
163 | if(time[ipmt] > 1) { | |
c41ceaac | 164 | if(time[ipmt]<besttimeA) { |
165 | besttimeA=time[ipmt]; //timeA | |
166 | pmtBestA=ipmt;} | |
dc7ca31d | 167 | } |
168 | } | |
c41ceaac | 169 | if(besttimeA !=999999) frecpoints->SetTimeBestA(Int_t(besttimeA)); |
170 | if( besttimeC != 999999 ) frecpoints->SetTimeBestC(Int_t(besttimeC)); | |
d0bcd1fb | 171 | AliDebug(10,Form(" besttimeA %f ch, besttimeC %f ch",besttimeA, besttimeC)); |
776de217 | 172 | if(besttimeA !=999999 && besttimeC != 999999 ){ |
9b83615d | 173 | // timeDiff = (besttimeC - besttimeA)*channelWidth; |
174 | timeDiff = (besttimeA - besttimeC)*channelWidth; | |
d0bcd1fb | 175 | meanTime = Float_t((besttimeA + besttimeC)/2);// * channelWidth); |
776de217 | 176 | timeclock = Float_t(meanTime - ref); |
d0bcd1fb | 177 | vertex = meanVertex - c*(timeDiff)/2.;// + (fdZonA - fdZonC)/2; |
776de217 | 178 | } |
dc7ca31d | 179 | frecpoints->SetVertex(vertex); |
776de217 | 180 | frecpoints->SetMeanTime(meanTime); |
181 | frecpoints->SetT0clock(timeclock); | |
446d6ec4 | 182 | //online mean |
d0bcd1fb | 183 | frecpoints->SetOnlineMean(Int_t(onlineMean)); |
776de217 | 184 | AliDebug(10,Form(" timeDiff %i #channel, meanTime %i #channel, vertex %f cm online mean %i timeclock %i ps",timeDiff, meanTime,vertex, Int_t(onlineMean), timeclock)); |
dc7ca31d | 185 | |
776de217 | 186 | // } |
b95e8d87 | 187 | |
dc7ca31d | 188 | clustersTree->Fill(); |
bd375212 | 189 | |
190 | delete timeCFD; | |
191 | delete timeLED; | |
192 | delete chargeQT0; | |
193 | delete chargeQT1; | |
dc7ca31d | 194 | } |
195 | ||
196 | ||
c41ceaac | 197 | //_______________________________________________________________________ |
198 | ||
199 | void AliT0Reconstructor::Reconstruct(AliRawReader* rawReader, TTree*recTree) const | |
200 | { | |
94c27e4f | 201 | // T0 raw -> |
539b9cb9 | 202 | // |
203 | // reference amplitude and time ref. point from reco param | |
204 | ||
c555f418 | 205 | Int_t refAmp = GetRecoParam()->GetRefAmp(); |
206 | Int_t refPoint = GetRecoParam()->GetRefPoint(); | |
539b9cb9 | 207 | |
e8ed1cd0 | 208 | Int_t allData[110][5]; |
2e6a5ee0 | 209 | |
e8ed1cd0 | 210 | Int_t timeCFD[24], timeLED[24], chargeQT0[24], chargeQT1[24]; |
776de217 | 211 | Int_t timeDiff=999999, meanTime=999999, timeclock=999999; |
212 | Float_t c = 0.0299792458; // cm/ps | |
213 | Float_t vertex = 9999999; | |
214 | Int_t onlineMean=0; | |
bce12dc5 | 215 | for (Int_t i0=0; i0<105; i0++) |
216 | { | |
217 | for (Int_t j0=0; j0<5; j0++) allData[i0][j0]=0; | |
218 | } | |
2e6a5ee0 | 219 | |
bce12dc5 | 220 | Float_t besttimeA=9999999; |
221 | Float_t besttimeC=9999999; | |
222 | Int_t pmtBestA=99999; | |
223 | Int_t pmtBestC=99999; | |
b95e8d87 | 224 | Float_t meanVertex = fParam->GetMeanVertex(); |
29a60970 | 225 | |
bce12dc5 | 226 | AliT0RecPoint* frecpoints= new AliT0RecPoint (); |
227 | ||
228 | recTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1); | |
2e6a5ee0 | 229 | |
bce12dc5 | 230 | AliDebug(10," before read data "); |
231 | AliT0RawReader myrawreader(rawReader); | |
776de217 | 232 | |
233 | UInt_t type =rawReader->GetType(); | |
234 | ||
bce12dc5 | 235 | if (!myrawreader.Next()) |
236 | AliDebug(1,Form(" no raw data found!!")); | |
237 | else | |
238 | { | |
776de217 | 239 | if(type == 7) { //only physics |
bce12dc5 | 240 | for (Int_t i=0; i<105; i++) { |
241 | for (Int_t iHit=0; iHit<5; iHit++) | |
242 | { | |
243 | allData[i][iHit] = myrawreader.GetData(i,iHit); | |
244 | } | |
245 | } | |
246 | ||
c555f418 | 247 | Int_t ref = allData[refPoint][0]-5000.; |
bce12dc5 | 248 | Float_t channelWidth = fParam->GetChannelWidth() ; |
249 | ||
250 | // Int_t meanT0 = fParam->GetMeanT0(); | |
d0bcd1fb | 251 | |
bce12dc5 | 252 | |
253 | for (Int_t in=0; in<12; in++) | |
254 | { | |
255 | timeCFD[in] = allData[in+1][0] ; | |
256 | timeCFD[in+12] = allData[in+56+1][0] ; | |
257 | timeLED[in] = allData[in+12+1][0] ; | |
258 | timeLED[in+12] = allData[in+68+1][0] ; | |
d0bcd1fb | 259 | AliDebug(10, Form(" readed i %i cfdC %i cfdA %i ledC %i ledA%i ", |
260 | in, timeCFD[in],timeCFD[in+12],timeLED[in], | |
261 | timeLED[in+12])); | |
bce12dc5 | 262 | } |
263 | ||
264 | for (Int_t in=0; in<12; in++) | |
265 | { | |
d0bcd1fb | 266 | chargeQT0[in]=allData[2*in+25][0]; |
267 | chargeQT1[in]=allData[2*in+26][0]; | |
bce12dc5 | 268 | } |
269 | ||
270 | for (Int_t in=12; in<24; in++) | |
271 | { | |
d0bcd1fb | 272 | chargeQT0[in]=allData[2*in+57][0]; |
273 | chargeQT1[in]=allData[2*in+58][0]; | |
bce12dc5 | 274 | } |
275 | ||
d0bcd1fb | 276 | // } //cosmic with physics event |
2e6a5ee0 | 277 | for (Int_t in=0; in<24; in++) |
c883fdf2 | 278 | AliDebug(10, Form(" readed Raw %i %i %i %i %i", |
279 | in, timeLED[in],timeCFD[in],chargeQT0[in],chargeQT1[in])); | |
776de217 | 280 | onlineMean = allData[49][0]; |
2e6a5ee0 | 281 | |
12e9daf9 | 282 | Float_t time[24], adc[24]; |
2e6a5ee0 | 283 | for (Int_t ipmt=0; ipmt<24; ipmt++) { |
284 | if(timeCFD[ipmt]>0 && timeLED[ipmt]>0){ | |
bce12dc5 | 285 | //for simulated data |
d0bcd1fb | 286 | //for physics data |
287 | if(( chargeQT1[ipmt] - chargeQT0[ipmt])>0) | |
288 | adc[ipmt] = chargeQT1[ipmt] - chargeQT0[ipmt]; | |
289 | else | |
290 | adc[ipmt] = 0; | |
bce12dc5 | 291 | |
539b9cb9 | 292 | |
c555f418 | 293 | time[ipmt] = fCalib-> WalkCorrection(refAmp, ipmt, adc[ipmt], timeCFD[ipmt] ) ; |
bce12dc5 | 294 | |
d0bcd1fb | 295 | Double_t sl = timeLED[ipmt] - timeCFD[ipmt]; |
539b9cb9 | 296 | // time[ipmt] = fCalib-> WalkCorrection( ipmt, Int_t(sl), timeCFD[ipmt] ) ; |
d0bcd1fb | 297 | AliDebug(10,Form(" ipmt %i QTC %i , time in chann %i (led-cfd) %i ", |
298 | ipmt, Int_t(adc[ipmt]) ,Int_t(time[ipmt]),Int_t( sl))); | |
299 | Double_t ampMip =( (TGraph*)fAmpLED.At(ipmt))->Eval(sl); | |
300 | Double_t qtMip = ((TGraph*)fQTC.At(ipmt))->Eval(adc[ipmt]); | |
301 | AliDebug(10,Form(" Amlitude in MIPS LED %f ; QTC %f; in channels %i\n ",ampMip,qtMip, adc[ipmt])); | |
bce12dc5 | 302 | |
d0bcd1fb | 303 | frecpoints->SetTime(ipmt, Float_t(time[ipmt]) ); |
304 | frecpoints->SetAmp(ipmt, Float_t( ampMip)); //for cosmic &pp beam | |
305 | frecpoints->SetAmpLED(ipmt, Float_t(qtMip)); | |
bce12dc5 | 306 | |
2e6a5ee0 | 307 | } |
308 | else { | |
309 | time[ipmt] = 0; | |
310 | adc[ipmt] = 0; | |
311 | } | |
312 | } | |
313 | ||
314 | for (Int_t ipmt=0; ipmt<12; ipmt++){ | |
315 | if(time[ipmt] > 1 ) { | |
316 | if(time[ipmt]<besttimeC){ | |
317 | besttimeC=time[ipmt]; //timeC | |
318 | pmtBestC=ipmt; | |
319 | } | |
320 | } | |
321 | } | |
322 | for ( Int_t ipmt=12; ipmt<24; ipmt++){ | |
323 | if(time[ipmt] > 1) { | |
324 | if(time[ipmt]<besttimeA) { | |
325 | besttimeA=time[ipmt]; //timeA | |
326 | pmtBestA=ipmt;} | |
327 | } | |
328 | } | |
329 | if(besttimeA !=9999999) frecpoints->SetTimeBestA(Int_t(besttimeA)); | |
330 | if( besttimeC != 9999999 ) frecpoints->SetTimeBestC(Int_t(besttimeC)); | |
539b9cb9 | 331 | AliDebug(5,Form(" pmtA %i besttimeA %f ps, pmtC %i besttimeC %f #channel", |
d0bcd1fb | 332 | pmtBestA,besttimeA, pmtBestC, besttimeC)); |
776de217 | 333 | if(besttimeA <9999999 && besttimeC < 9999999 ){ |
9b83615d | 334 | timeDiff = ( besttimeA - besttimeC) *channelWidth; |
d0bcd1fb | 335 | meanTime = Float_t((besttimeA + besttimeC)/2.); |
776de217 | 336 | timeclock = Float_t(meanTime - ref); |
d0bcd1fb | 337 | vertex = meanVertex - c*(timeDiff)/2.; //+ (fdZonA - fdZonC)/2; |
2e6a5ee0 | 338 | } |
776de217 | 339 | } //if phys event |
340 | frecpoints->SetT0clock(timeclock); | |
341 | frecpoints->SetVertex(vertex); | |
342 | frecpoints->SetMeanTime(Int_t(meanTime)); | |
343 | frecpoints->SetOnlineMean(Int_t(onlineMean)); | |
344 | AliDebug(5,Form(" timeDiff %f #channel, meanTime %f #channel, vertex %f cm meanVertex %f online mean %i ",timeDiff, meanTime,vertex,meanVertex, onlineMean)); | |
345 | ||
346 | ||
bce12dc5 | 347 | } // if (else )raw data |
348 | recTree->Fill(); | |
349 | if(frecpoints) delete frecpoints; | |
c41ceaac | 350 | } |
bce12dc5 | 351 | |
352 | ||
c41ceaac | 353 | //____________________________________________________________ |
354 | ||
d76c31f4 | 355 | void AliT0Reconstructor::FillESD(TTree */*digitsTree*/, TTree *clustersTree, AliESDEvent *pESD) const |
dc7ca31d | 356 | { |
357 | ||
358 | /*************************************************** | |
359 | Resonstruct digits to vertex position | |
360 | ****************************************************/ | |
361 | ||
dc7ca31d | 362 | AliDebug(1,Form("Start FillESD T0")); |
363 | ||
d76c31f4 | 364 | TTree *treeR = clustersTree; |
dc7ca31d | 365 | |
366 | AliT0RecPoint* frecpoints= new AliT0RecPoint (); | |
367 | if (!frecpoints) { | |
368 | AliError("Reconstruct Fill ESD >> no recpoints found"); | |
369 | return; | |
370 | } | |
371 | ||
372 | AliDebug(1,Form("Start FillESD T0")); | |
373 | TBranch *brRec = treeR->GetBranch("T0"); | |
374 | if (brRec) { | |
375 | brRec->SetAddress(&frecpoints); | |
376 | }else{ | |
f16935f7 | 377 | AliError(Form("EXEC Branch T0 rec not found")); |
dc7ca31d | 378 | return; |
379 | } | |
380 | ||
381 | brRec->GetEntry(0); | |
f16935f7 | 382 | Float_t amp[24], time[24]; |
383 | Float_t zPosition = frecpoints -> GetVertex(); | |
384 | Float_t timeStart = frecpoints -> GetMeanTime() ; | |
776de217 | 385 | Float_t timeClock = frecpoints -> GetT0clock() ; |
386 | for ( Int_t i=0; i<24; i++) { | |
94c27e4f | 387 | time[i] = Float_t (frecpoints -> GetTime(i)); // ps to ns |
dc7ca31d | 388 | amp[i] = frecpoints -> GetAmp(i); |
389 | } | |
f16935f7 | 390 | pESD->SetT0zVertex(zPosition); //vertex Z position |
dc7ca31d | 391 | pESD->SetT0(timeStart); // interaction time |
776de217 | 392 | pESD->SetT0clock(timeClock); // interaction time with ref.point(spectrum) |
dc7ca31d | 393 | pESD->SetT0time(time); // best TOF on each PMT |
394 | pESD->SetT0amplitude(amp); // number of particles(MIPs) on each PMT | |
5325480c | 395 | |
f16935f7 | 396 | AliDebug(1,Form(" Z position %f cm, T0 %f ps",zPosition , timeStart)); |
dc7ca31d | 397 | |
dc7ca31d | 398 | } // vertex in 3 sigma |
399 | ||
400 | ||
401 | ||
402 | ||
403 | ||
404 |