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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 | * T0 reconstruction and filling ESD | |
19 | * - reconstruct mean time (interation time) | |
20 | * - vertex position | |
21 | * - multiplicity | |
22 | ********************************************************************/ | |
23 | ||
24 | #include <AliESDEvent.h> | |
25 | #include "AliLog.h" | |
26 | #include "AliT0RecPoint.h" | |
27 | #include "AliRawReader.h" | |
28 | #include "AliT0RawReader.h" | |
29 | #include "AliT0digit.h" | |
30 | #include "AliT0Reconstructor.h" | |
31 | #include "AliT0Parameters.h" | |
32 | #include "AliT0Calibrator.h" | |
33 | ||
34 | #include <TArrayI.h> | |
35 | #include <TGraph.h> | |
36 | #include <TMath.h> | |
37 | #include <Riostream.h> | |
38 | ||
39 | ClassImp(AliT0Reconstructor) | |
40 | ||
41 | AliT0Reconstructor:: AliT0Reconstructor(): AliReconstructor(), | |
42 | fdZonA(0), | |
43 | fdZonC(0), | |
44 | fZposition(0), | |
45 | fParam(NULL), | |
46 | fAmpLEDrec(), | |
47 | fQTC(0), | |
48 | fAmpLED(0), | |
49 | fCalib() | |
50 | { | |
51 | //constructor | |
52 | ||
53 | AliDebug(1,"Start reconstructor "); | |
54 | ||
55 | fParam = AliT0Parameters::Instance(); | |
56 | fParam->Init(); | |
57 | TString option = GetOption(); | |
58 | ||
59 | for (Int_t i=0; i<24; i++){ | |
60 | TGraph* gr = fParam ->GetAmpLEDRec(i); | |
61 | if (gr) fAmpLEDrec.AddAtAndExpand(gr,i) ; | |
62 | TGraph* gr1 = fParam ->GetAmpLED(i); | |
63 | if (gr1) fAmpLED.AddAtAndExpand(gr1,i) ; | |
64 | TGraph* gr2 = fParam ->GetQTC(i); | |
65 | if (gr2) fQTC.AddAtAndExpand(gr2,i) ; | |
66 | ||
67 | } | |
68 | ||
69 | fdZonC = TMath::Abs(fParam->GetZPositionShift("T0/C/PMT1")); | |
70 | fdZonA = TMath::Abs(fParam->GetZPositionShift("T0/A/PMT15")); | |
71 | fCalib = new AliT0Calibrator(); | |
72 | ||
73 | } | |
74 | //____________________________________________________________________ | |
75 | ||
76 | AliT0Reconstructor::AliT0Reconstructor(const AliT0Reconstructor &r): | |
77 | AliReconstructor(r), | |
78 | fdZonA(0), | |
79 | fdZonC(0), | |
80 | fZposition(0), | |
81 | fParam(NULL), | |
82 | fAmpLEDrec(), | |
83 | fQTC(0), | |
84 | fAmpLED(0), | |
85 | fCalib() | |
86 | ||
87 | { | |
88 | // | |
89 | // AliT0Reconstructor copy constructor | |
90 | // | |
91 | ||
92 | ((AliT0Reconstructor &) r).Copy(*this); | |
93 | ||
94 | } | |
95 | ||
96 | //_____________________________________________________________________________ | |
97 | AliT0Reconstructor &AliT0Reconstructor::operator=(const AliT0Reconstructor &r) | |
98 | { | |
99 | // | |
100 | // Assignment operator | |
101 | // | |
102 | ||
103 | if (this != &r) ((AliT0Reconstructor &) r).Copy(*this); | |
104 | return *this; | |
105 | ||
106 | } | |
107 | ||
108 | //_____________________________________________________________________________ | |
109 | ||
110 | void AliT0Reconstructor::Reconstruct(TTree*digitsTree, TTree*clustersTree) const | |
111 | ||
112 | { | |
113 | // T0 digits reconstruction | |
114 | // T0RecPoint writing | |
115 | ||
116 | ||
117 | TArrayI * timeCFD = new TArrayI(24); | |
118 | TArrayI * timeLED = new TArrayI(24); | |
119 | TArrayI * chargeQT0 = new TArrayI(24); | |
120 | TArrayI * chargeQT1 = new TArrayI(24); | |
121 | ||
122 | ||
123 | // Int_t mV2Mip = param->GetmV2Mip(); | |
124 | //mV2Mip = param->GetmV2Mip(); | |
125 | Float_t channelWidth = fParam->GetChannelWidth() ; | |
126 | // Int_t meanT0 = fParam->GetMeanT0(); | |
127 | ||
128 | AliDebug(1,Form("Start DIGITS reconstruction ")); | |
129 | ||
130 | ||
131 | TBranch *brDigits=digitsTree->GetBranch("T0"); | |
132 | AliT0digit *fDigits = new AliT0digit() ; | |
133 | if (brDigits) { | |
134 | brDigits->SetAddress(&fDigits); | |
135 | }else{ | |
136 | AliError(Form("EXEC Branch T0 digits not found")); | |
137 | return; | |
138 | } | |
139 | ||
140 | digitsTree->GetEvent(0); | |
141 | digitsTree->GetEntry(0); | |
142 | brDigits->GetEntry(0); | |
143 | fDigits->GetTimeCFD(*timeCFD); | |
144 | fDigits->GetTimeLED(*timeLED); | |
145 | fDigits->GetQT0(*chargeQT0); | |
146 | fDigits->GetQT1(*chargeQT1); | |
147 | Int_t onlineMean = fDigits->MeanTime(); | |
148 | ||
149 | ||
150 | Float_t besttimeA=999999; | |
151 | Float_t besttimeC=999999; | |
152 | Int_t pmtBestA=99999; | |
153 | Int_t pmtBestC=99999; | |
154 | Float_t timeDiff=999999, meanTime=0; | |
155 | ||
156 | Int_t mv2MIP = fParam-> GetmV2Mip(); | |
157 | ||
158 | ||
159 | AliT0RecPoint* frecpoints= new AliT0RecPoint (); | |
160 | clustersTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1); | |
161 | ||
162 | Float_t time[24], adc[24]; | |
163 | for (Int_t ipmt=0; ipmt<24; ipmt++) { | |
164 | if(timeCFD->At(ipmt)>0 ){ | |
165 | Double_t qt0 = Double_t(chargeQT0->At(ipmt)); | |
166 | Double_t qt1 = Double_t(chargeQT1->At(ipmt)); | |
167 | if((qt1-qt0)>0) adc[ipmt] = Int_t (TMath::Exp( Double_t (channelWidth*(qt1-qt0)/1000))); | |
168 | ||
169 | time[ipmt] = fCalib-> WalkCorrection( ipmt, Int_t(qt1) , timeCFD->At(ipmt), "pdc" ) ; | |
170 | ||
171 | //LED | |
172 | Float_t ampLED; //LED | |
173 | Double_t sl = (timeLED->At(ipmt) - time[ipmt])*channelWidth; | |
174 | if( adc[ipmt]/Float_t(mv2MIP) < 20) | |
175 | { | |
176 | Double_t qt=((TGraph*)fAmpLEDrec.At(ipmt))->Eval(sl/1000.); | |
177 | ampLED = qt/Float_t(mv2MIP); | |
178 | AliDebug(1,Form(" ipmt %i QTC %f ch QTC in MIP %f, time in chann %f (led-cfd) %f in MIPs %f", | |
179 | ipmt, adc[ipmt], adc[ipmt]/Float_t(mv2MIP), time[ipmt],sl,ampLED )); | |
180 | } | |
181 | else | |
182 | { AliDebug(1,Form(" amplitude %f MIPs on PMT %i, write QTC in both ", (adc[ipmt]/Float_t(mv2MIP)), ipmt)); | |
183 | ampLED=adc[ipmt]/Float_t(mv2MIP);} | |
184 | frecpoints->SetTime(ipmt,time[ipmt]); | |
185 | frecpoints->SetAmp(ipmt,adc[ipmt]/Float_t(mv2MIP)); | |
186 | frecpoints->SetAmpLED(ipmt,ampLED); | |
187 | } | |
188 | else { | |
189 | time[ipmt] = 0; | |
190 | adc[ipmt] = 0; | |
191 | } | |
192 | } | |
193 | ||
194 | for (Int_t ipmt=0; ipmt<12; ipmt++){ | |
195 | if(time[ipmt] > 1 ) { | |
196 | if(time[ipmt]<besttimeC){ | |
197 | besttimeC=time[ipmt]; //timeC | |
198 | pmtBestC=ipmt; | |
199 | } | |
200 | } | |
201 | } | |
202 | for ( Int_t ipmt=12; ipmt<24; ipmt++){ | |
203 | if(time[ipmt] > 1) { | |
204 | if(time[ipmt]<besttimeA) { | |
205 | besttimeA=time[ipmt]; //timeA | |
206 | pmtBestA=ipmt;} | |
207 | } | |
208 | } | |
209 | if(besttimeA !=999999) frecpoints->SetTimeBestA(Int_t(besttimeA)); | |
210 | if( besttimeC != 999999 ) frecpoints->SetTimeBestC(Int_t(besttimeC)); | |
211 | AliDebug(1,Form(" besttimeA %f ch, besttimeC %f ch",besttimeA, besttimeC)); | |
212 | Float_t c = 0.0299792; // cm/ps | |
213 | Float_t vertex = 0; | |
214 | if(besttimeA !=999999 && besttimeC != 999999 ){ | |
215 | timeDiff = (besttimeC - besttimeA)*channelWidth; | |
216 | meanTime = (Float_t((besttimeA + besttimeC -4000)/2) * channelWidth); | |
217 | // meanTime = (meanT0 - (besttimeA + besttimeC)/2) * channelWidth; | |
218 | vertex = c*(timeDiff)/2. + (fdZonA - fdZonC)/2; //-(lenr-lenl))/2; | |
219 | frecpoints->SetVertex(vertex); | |
220 | frecpoints->SetMeanTime(Int_t(meanTime)); | |
221 | //online mean | |
222 | frecpoints->SetOnlineMean(Int_t(onlineMean * channelWidth)); | |
223 | AliDebug(1,Form(" timeDiff %f ps, meanTime %f ps, vertex %f cm online mean %i ps",timeDiff, meanTime,vertex, Int_t(onlineMean * channelWidth ))); | |
224 | ||
225 | } | |
226 | ||
227 | //time in each channel as time[ipmt]-MeanTimeinThisChannel(with vertex=0) | |
228 | /* | |
229 | for (Int_t ipmt=0; ipmt<24; ipmt++) { | |
230 | if(time[ipmt]>1) { | |
231 | // time[ipmt] = (time[ipmt] - fTime0vertex[ipmt])*channelWidth; | |
232 | time[ipmt] =Int_t ( Float_t(time[ipmt]) * channelWidth); | |
233 | frecpoints->SetTime(ipmt,time[ipmt]); | |
234 | } | |
235 | } | |
236 | */ | |
237 | clustersTree->Fill(); | |
238 | ||
239 | delete timeCFD; | |
240 | delete timeLED; | |
241 | delete chargeQT0; | |
242 | delete chargeQT1; | |
243 | } | |
244 | ||
245 | ||
246 | //_______________________________________________________________________ | |
247 | ||
248 | void AliT0Reconstructor::Reconstruct(AliRawReader* rawReader, TTree*recTree) const | |
249 | { | |
250 | // T0 raw -> | |
251 | // T0RecPoint writing | |
252 | ||
253 | //Q->T-> coefficients !!!! should be measured!!! | |
254 | Int_t allData[110][5]; | |
255 | ||
256 | Int_t timeCFD[24], timeLED[24], chargeQT0[24], chargeQT1[24]; | |
257 | TString option = GetOption(); | |
258 | AliDebug(10,Form("Option: %s\n", option.Data())); | |
259 | ||
260 | ||
261 | for (Int_t i0=0; i0<105; i0++) | |
262 | { | |
263 | for (Int_t j0=0; j0<5; j0++) allData[i0][j0]=0; | |
264 | } | |
265 | ||
266 | Float_t besttimeA=9999999; | |
267 | Float_t besttimeC=9999999; | |
268 | Int_t pmtBestA=99999; | |
269 | Int_t pmtBestC=99999; | |
270 | Float_t timeDiff=9999999, meanTime=0; | |
271 | Double_t qt=0; | |
272 | Int_t mv2MIP = fParam-> GetmV2Mip(); | |
273 | UInt_t type =rawReader->GetType(); | |
274 | ||
275 | AliT0RecPoint* frecpoints= new AliT0RecPoint (); | |
276 | ||
277 | recTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1); | |
278 | ||
279 | ||
280 | AliDebug(10," before read data "); | |
281 | AliT0RawReader myrawreader(rawReader); | |
282 | if (!myrawreader.Next()) | |
283 | AliDebug(1,Form(" no raw data found!!")); | |
284 | else | |
285 | { | |
286 | for (Int_t i=0; i<105; i++) { | |
287 | for (Int_t iHit=0; iHit<5; iHit++) | |
288 | { | |
289 | allData[i][iHit] = myrawreader.GetData(i,iHit); | |
290 | } | |
291 | } | |
292 | ||
293 | Float_t channelWidth = fParam->GetChannelWidth() ; | |
294 | ||
295 | // Int_t meanT0 = fParam->GetMeanT0(); | |
296 | if(option == "pdc"){ | |
297 | for (Int_t in=0; in<24; in++) | |
298 | { | |
299 | ||
300 | timeLED[in] = allData[in+1][0] ; | |
301 | timeCFD[in] = allData[in+25][0] ; | |
302 | chargeQT1[in] = allData[in+57][0] ; | |
303 | chargeQT0[in] = allData[in+81][0] ; | |
304 | } | |
305 | } | |
306 | ||
307 | if(option == "cosmic" && type == 7 ) | |
308 | { | |
309 | ||
310 | for (Int_t in=0; in<12; in++) | |
311 | { | |
312 | timeCFD[in] = allData[in+1][0] ; | |
313 | timeCFD[in+12] = allData[in+56+1][0] ; | |
314 | timeLED[in] = allData[in+12+1][0] ; | |
315 | timeLED[in+12] = allData[in+68+1][0] ; | |
316 | } | |
317 | ||
318 | for (Int_t in=0; in<12; in++) | |
319 | { | |
320 | chargeQT1[in]=allData[2*in+25][0]; | |
321 | chargeQT0[in]=allData[2*in+26][0]; | |
322 | } | |
323 | ||
324 | for (Int_t in=12; in<24; in++) | |
325 | { | |
326 | chargeQT1[in]=allData[2*in+57][0]; | |
327 | chargeQT0[in]=allData[2*in+58][0]; | |
328 | } | |
329 | ||
330 | } //cosmic with physics event | |
331 | for (Int_t in=0; in<24; in++) | |
332 | AliDebug(10, Form(" readed Raw %i %i %i %i %i", | |
333 | in, timeLED[in],timeCFD[in],chargeQT0[in],chargeQT1[in])); | |
334 | Int_t onlineMean = allData[49][0]; | |
335 | ||
336 | Float_t time[24], adc[24]; | |
337 | for (Int_t ipmt=0; ipmt<24; ipmt++) { | |
338 | if(timeCFD[ipmt]>0 && timeLED[ipmt]>0){ | |
339 | //for simulated data | |
340 | if(option == "pdc"){ | |
341 | Double_t qt0 = Double_t(chargeQT0[ipmt]); | |
342 | Double_t qt1 = Double_t(chargeQT1[ipmt]); | |
343 | if((qt1-qt0)>0) adc[ipmt] = Int_t(TMath::Exp( Double_t (channelWidth*(qt1-qt0)/1000.))); | |
344 | time[ipmt] = fCalib-> WalkCorrection( ipmt,Int_t(qt1) , timeCFD[ipmt], "pdc" ) ; | |
345 | Double_t sl = (timeLED[ipmt] - time[ipmt])*channelWidth; | |
346 | //pp collison | |
347 | if( adc[ipmt]/Float_t(mv2MIP) < 20) | |
348 | { | |
349 | if(fAmpLEDrec.At(ipmt)) | |
350 | qt=((TGraph*)fAmpLEDrec.At(ipmt))->Eval(sl/1000.); | |
351 | } | |
352 | else //PbPb | |
353 | { AliDebug(1,Form(" amplitude %f MIPs on PMT %i, write QTC in both ", (adc[ipmt]/Float_t(mv2MIP)), ipmt)); | |
354 | qt=adc[ipmt]/Float_t(mv2MIP);} | |
355 | ||
356 | frecpoints->SetTime(ipmt,time[ipmt]); | |
357 | frecpoints->SetAmp(ipmt,adc[ipmt]/Float_t(mv2MIP)); | |
358 | frecpoints->SetAmpLED(ipmt,qt/Float_t(mv2MIP)); | |
359 | AliDebug(10,Form(" QTC %f mv, time in chann %f ampLED %f",adc[ipmt] ,time[ipmt], qt)); | |
360 | AliDebug(10,Form(" Amlitude in MIPS LED %f , QTC %f \n ", adc[ipmt]/Float_t(mv2MIP),qt/Float_t(mv2MIP))); | |
361 | } | |
362 | ||
363 | ||
364 | //for physics data | |
365 | if(option == "cosmic" && type == 7) { | |
366 | if(( chargeQT1[ipmt] - chargeQT0[ipmt])>0) | |
367 | adc[ipmt] = chargeQT1[ipmt] - chargeQT0[ipmt]; | |
368 | else | |
369 | adc[ipmt] = 0; | |
370 | // time[ipmt] = fCalib-> WalkCorrection( ipmt, adc[ipmt], timeCFD[ipmt],"cosmic" ) ; | |
371 | ||
372 | Double_t sl = timeLED[ipmt] - timeCFD[ipmt]; | |
373 | time[ipmt] = fCalib-> WalkCorrection( ipmt, Int_t(sl), timeCFD[ipmt],"cosmic" ) ; | |
374 | time[ipmt] = time[ipmt] - allData[0][0] + 5000; | |
375 | AliDebug(10,Form(" ipmt %i QTC %i , time in chann %i (led-cfd) %i ", | |
376 | ipmt, Int_t(adc[ipmt]) ,Int_t(time[ipmt]),Int_t( sl))); | |
377 | Double_t ampMip =( (TGraph*)fAmpLED.At(ipmt))->Eval(sl); | |
378 | Double_t qtMip = ((TGraph*)fQTC.At(ipmt))->Eval(adc[ipmt]); | |
379 | AliDebug(10,Form(" Amlitude in MIPS LED %f , QTC %f \n ",ampMip,qtMip)); | |
380 | ||
381 | frecpoints->SetTime(ipmt, Float_t(time[ipmt]) ); | |
382 | frecpoints->SetAmp(ipmt, Float_t( ampMip)); //for cosmic &pp beam | |
383 | frecpoints->SetAmpLED(ipmt, Float_t(qtMip)); | |
384 | } //if physic data end | |
385 | ||
386 | } | |
387 | else { | |
388 | time[ipmt] = 0; | |
389 | adc[ipmt] = 0; | |
390 | } | |
391 | } | |
392 | ||
393 | for (Int_t ipmt=0; ipmt<12; ipmt++){ | |
394 | if(time[ipmt] > 1 ) { | |
395 | if(time[ipmt]<besttimeC){ | |
396 | besttimeC=time[ipmt]; //timeC | |
397 | pmtBestC=ipmt; | |
398 | } | |
399 | } | |
400 | } | |
401 | for ( Int_t ipmt=12; ipmt<24; ipmt++){ | |
402 | if(time[ipmt] > 1) { | |
403 | if(time[ipmt]<besttimeA) { | |
404 | besttimeA=time[ipmt]; //timeA | |
405 | pmtBestA=ipmt;} | |
406 | } | |
407 | } | |
408 | if(besttimeA !=9999999) frecpoints->SetTimeBestA(Int_t(besttimeA)); | |
409 | if( besttimeC != 9999999 ) frecpoints->SetTimeBestC(Int_t(besttimeC)); | |
410 | AliDebug(1,Form(" besttimeA %f ps, besttimeC %f ps",besttimeA, besttimeC)); | |
411 | Float_t c = 0.0299792; // cm/ps | |
412 | Float_t vertex = 99999; | |
413 | if(besttimeA <9999999 && besttimeC < 9999999 ){ | |
414 | timeDiff = ( besttimeC - besttimeA) *channelWidth; | |
415 | if(option == "pdc"){ | |
416 | // meanTime = (besttimeA + besttimeC)/2 * channelWidth; | |
417 | meanTime = (besttimeA + besttimeC-4000.)/2 * channelWidth; | |
418 | onlineMean = Int_t (onlineMean * channelWidth); | |
419 | } | |
420 | if(option == "cosmic") { | |
421 | meanTime = Float_t((besttimeA + besttimeC)/2); | |
422 | onlineMean = onlineMean -allData[0][0];; | |
423 | } | |
424 | vertex = c*(timeDiff)/2.+ (fdZonA - fdZonC)/2; | |
425 | frecpoints->SetVertex(vertex); | |
426 | frecpoints->SetMeanTime(Int_t(meanTime)); | |
427 | AliDebug(1,Form(" timeDiff %f ps, meanTime %f ps, vertex %f cm online mean %i ",timeDiff, meanTime,vertex, onlineMean)); | |
428 | ||
429 | } | |
430 | } // if (else )raw data | |
431 | recTree->Fill(); | |
432 | if(frecpoints) delete frecpoints; | |
433 | } | |
434 | ||
435 | ||
436 | //____________________________________________________________ | |
437 | ||
438 | void AliT0Reconstructor::FillESD(TTree */*digitsTree*/, TTree *clustersTree, AliESDEvent *pESD) const | |
439 | { | |
440 | ||
441 | /*************************************************** | |
442 | Resonstruct digits to vertex position | |
443 | ****************************************************/ | |
444 | ||
445 | AliDebug(1,Form("Start FillESD T0")); | |
446 | ||
447 | TTree *treeR = clustersTree; | |
448 | ||
449 | AliT0RecPoint* frecpoints= new AliT0RecPoint (); | |
450 | if (!frecpoints) { | |
451 | AliError("Reconstruct Fill ESD >> no recpoints found"); | |
452 | return; | |
453 | } | |
454 | ||
455 | AliDebug(1,Form("Start FillESD T0")); | |
456 | TBranch *brRec = treeR->GetBranch("T0"); | |
457 | if (brRec) { | |
458 | brRec->SetAddress(&frecpoints); | |
459 | }else{ | |
460 | AliError(Form("EXEC Branch T0 rec not found")); | |
461 | return; | |
462 | } | |
463 | ||
464 | brRec->GetEntry(0); | |
465 | Float_t amp[24], time[24]; | |
466 | Float_t zPosition = frecpoints -> GetVertex(); | |
467 | Float_t timeStart = frecpoints -> GetMeanTime() ; | |
468 | for ( Int_t i=0; i<24; i++) { | |
469 | time[i] = Float_t (frecpoints -> GetTime(i)); // ps to ns | |
470 | amp[i] = frecpoints -> GetAmp(i); | |
471 | } | |
472 | pESD->SetT0zVertex(zPosition); //vertex Z position | |
473 | pESD->SetT0(timeStart); // interaction time | |
474 | pESD->SetT0time(time); // best TOF on each PMT | |
475 | pESD->SetT0amplitude(amp); // number of particles(MIPs) on each PMT | |
476 | ||
477 | AliDebug(1,Form(" Z position %f cm, T0 %f ps",zPosition , timeStart)); | |
478 | ||
479 | } // vertex in 3 sigma | |
480 | ||
481 | ||
482 | ||
483 | ||
484 | ||
485 |