1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 #include <Riostream.h>
20 #include <TDirectory.h>
22 #include "AliRunLoader.h"
23 #include <AliESDEvent.h>
25 #include "AliT0Loader.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 #include "AliCDBLocal.h"
34 #include "AliCDBStorage.h"
35 #include "AliCDBManager.h"
36 #include "AliCDBEntry.h"
42 ClassImp(AliT0Reconstructor)
44 AliT0Reconstructor:: AliT0Reconstructor(): AliReconstructor(),
51 AliDebug(1,"Start reconstructor ");
53 fParam = AliT0Parameters::Instance();
55 for (Int_t i=0; i<24; i++){
56 TGraph* gr = fParam ->GetAmpLEDRec(i);
57 fAmpLEDrec.AddAtAndExpand(gr,i) ;
58 fTime0vertex[i]= fParam->GetTimeDelayDA(i);
60 fdZonC = TMath::Abs(fParam->GetZPositionShift("T0/C/PMT1"));
61 fdZonA = TMath::Abs(fParam->GetZPositionShift("T0/A/PMT15"));
64 //____________________________________________________________________
66 AliT0Reconstructor::AliT0Reconstructor(const AliT0Reconstructor &r):
75 // AliT0Reconstructor copy constructor
78 ((AliT0Reconstructor &) r).Copy(*this);
82 //_____________________________________________________________________________
83 AliT0Reconstructor &AliT0Reconstructor::operator=(const AliT0Reconstructor &r)
86 // Assignment operator
89 if (this != &r) ((AliT0Reconstructor &) r).Copy(*this);
94 //_____________________________________________________________________________
96 void AliT0Reconstructor::Reconstruct(TTree*digitsTree, TTree*clustersTree) const
99 // T0 digits reconstruction
100 // T0RecPoint writing
103 TArrayI * timeCFD = new TArrayI(24);
104 TArrayI * timeLED = new TArrayI(24);
105 TArrayI * chargeQT0 = new TArrayI(24);
106 TArrayI * chargeQT1 = new TArrayI(24);
108 AliT0Calibrator *calib=new AliT0Calibrator();
110 // Int_t mV2Mip = param->GetmV2Mip();
111 //mV2Mip = param->GetmV2Mip();
112 Float_t channelWidth = fParam->GetChannelWidth() ;
113 Int_t meanT0 = fParam->GetMeanT0();
115 AliDebug(1,Form("Start DIGITS reconstruction "));
117 TBranch *brDigits=digitsTree->GetBranch("T0");
118 AliT0digit *fDigits = new AliT0digit() ;
120 brDigits->SetAddress(&fDigits);
122 AliError(Form("EXEC Branch T0 digits not found"));
126 digitsTree->GetEvent(0);
127 digitsTree->GetEntry(0);
128 brDigits->GetEntry(0);
129 fDigits->GetTimeCFD(*timeCFD);
130 fDigits->GetTimeLED(*timeLED);
131 fDigits->GetQT0(*chargeQT0);
132 fDigits->GetQT1(*chargeQT1);
134 Float_t besttimeA=999999;
135 Float_t besttimeC=999999;
136 Int_t pmtBestA=99999;
137 Int_t pmtBestC=99999;
138 Float_t timeDiff=999999, meanTime=0;
142 AliT0RecPoint* frecpoints= new AliT0RecPoint ();
143 clustersTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1);
145 Float_t time[24], adc[24];
146 for (Int_t ipmt=0; ipmt<24; ipmt++) {
147 if(timeCFD->At(ipmt)>0 ){
148 Double_t qt0 = Double_t(chargeQT0->At(ipmt));
149 Double_t qt1 = Double_t(chargeQT1->At(ipmt));
150 if((qt1-qt0)>0) adc[ipmt] = TMath::Exp( Double_t (channelWidth*(qt1-qt0)/1000));
151 time[ipmt] = calib-> WalkCorrection( ipmt,Int_t(qt1) , timeCFD->At(ipmt) ) ;
154 Double_t sl = (timeLED->At(ipmt) - time[ipmt])*channelWidth;
155 Double_t qt=((TGraph*)fAmpLEDrec.At(ipmt))->Eval(sl/1000.);
156 frecpoints->SetTime(ipmt,time[ipmt]);
157 frecpoints->SetAmp(ipmt,adc[ipmt]);
158 frecpoints->SetAmpLED(ipmt,qt);
166 for (Int_t ipmt=0; ipmt<12; ipmt++){
167 if(time[ipmt] > 1 ) {
168 if(time[ipmt]<besttimeC){
169 besttimeC=time[ipmt]; //timeC
174 for ( Int_t ipmt=12; ipmt<24; ipmt++){
176 if(time[ipmt]<besttimeA) {
177 besttimeA=time[ipmt]; //timeA
181 if(besttimeA !=999999) frecpoints->SetTimeBestA(Int_t(besttimeA));
182 if( besttimeC != 999999 ) frecpoints->SetTimeBestC(Int_t(besttimeC));
183 AliDebug(1,Form(" besttimeA %f ps, besttimeC %f ps",besttimeA, besttimeC));
184 Float_t c = 0.0299792; // cm/ps
186 if(besttimeA !=999999 && besttimeC != 999999 ){
187 timeDiff =(besttimeC - besttimeA)*channelWidth;
188 meanTime = (meanT0 - (besttimeA + besttimeC)/2) * channelWidth;
189 vertex = c*(timeDiff)/2. + (fdZonA - fdZonC)/2; //-(lenr-lenl))/2;
190 AliDebug(1,Form(" timeDiff %f ps, meanTime %f ps, vertex %f cm",timeDiff, meanTime,vertex ));
191 frecpoints->SetVertex(vertex);
192 frecpoints->SetMeanTime(Int_t(meanTime));
195 //time in each channel as time[ipmt]-MeanTimeinThisChannel(with vertex=0)
196 for (Int_t ipmt=0; ipmt<24; ipmt++) {
198 time[ipmt] = (time[ipmt] - fTime0vertex[ipmt])*channelWidth;
199 frecpoints->SetTime(ipmt,time[ipmt]);
202 clustersTree->Fill();
211 //_______________________________________________________________________
213 void AliT0Reconstructor::Reconstruct(AliRawReader* rawReader, TTree*recTree) const
216 // T0RecPoint writing
218 //Q->T-> coefficients !!!! should be measured!!!
219 Int_t allData[110][5];
221 TArrayI * timeCFD = new TArrayI(24);
222 TArrayI * timeLED = new TArrayI(24);
223 TArrayI * chargeQT0 = new TArrayI(24);
224 TArrayI * chargeQT1 = new TArrayI(24);
226 for (Int_t i=0; i<110; i++) {
230 AliT0RawReader myrawreader(rawReader);
231 if (!myrawreader.Next())
232 AliDebug(1,Form(" no raw data found!! %i", myrawreader.Next()));
233 for (Int_t i=0; i<110; i++) {
234 allData[i][0]=myrawreader.GetData(i,0);
236 AliT0Calibrator *calib = new AliT0Calibrator();
238 // Int_t mV2Mip = param->GetmV2Mip();
239 //mV2Mip = param->GetmV2Mip();
240 Float_t channelWidth = fParam->GetChannelWidth() ;
242 Int_t meanT0 = fParam->GetMeanT0();
244 for (Int_t in=0; in<24; in++)
246 timeLED->AddAt(allData[in+1][0],in);
247 timeCFD->AddAt(allData[in+25][0],in);
248 chargeQT1->AddAt(allData[in+57][0],in);
249 chargeQT0->AddAt(allData[in+80][0],in);
250 AliDebug(10, Form(" readed Raw %i %i %i %i %i", in, timeLED->At(in),timeCFD->At(in),chargeQT0->At(in),chargeQT1->At(in)));
253 Float_t besttimeA=999999;
254 Float_t besttimeC=999999;
255 Int_t pmtBestA=99999;
256 Int_t pmtBestC=99999;
257 Float_t timeDiff=999999, meanTime=0;
260 AliT0RecPoint* frecpoints= new AliT0RecPoint ();
262 recTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1);
265 Float_t time[24], adc[24];
266 for (Int_t ipmt=0; ipmt<24; ipmt++) {
267 if(timeCFD->At(ipmt)>0 ){
268 Double_t qt0 = Double_t(chargeQT0->At(ipmt));
269 Double_t qt1 = Double_t(chargeQT1->At(ipmt));
270 if((qt1-qt0)>0) adc[ipmt] = TMath::Exp( Double_t (channelWidth*(qt1-qt0)/1000));
271 // time[ipmt] = channelWidth * (calib-> WalkCorrection( ipmt,qt1 , timeCFD->At(ipmt) ) ) ;
272 time[ipmt] = calib-> WalkCorrection( ipmt,Int_t(qt1) , timeCFD->At(ipmt) ) ;
273 Double_t sl = (timeLED->At(ipmt) - time[ipmt])*channelWidth;
274 Double_t qt=((TGraph*)fAmpLEDrec.At(ipmt))->Eval(sl/1000.);
275 frecpoints->SetTime(ipmt,time[ipmt]);
276 frecpoints->SetAmp(ipmt,adc[ipmt]);
277 frecpoints->SetAmpLED(ipmt,qt);
278 AliDebug(1,Form(" QTC %f mv, QTC %f MIPS time in chann %f time %f ",adc[ipmt], adc[ipmt]/50.,time[ipmt], time[ipmt]*channelWidth));
287 for (Int_t ipmt=0; ipmt<12; ipmt++){
288 if(time[ipmt] > 1 ) {
289 if(time[ipmt]<besttimeC){
290 besttimeC=time[ipmt]; //timeC
295 for ( Int_t ipmt=12; ipmt<24; ipmt++){
297 if(time[ipmt]<besttimeA) {
298 besttimeA=time[ipmt]; //timeA
302 if(besttimeA !=999999) frecpoints->SetTimeBestA(Int_t(besttimeA));
303 if( besttimeC != 999999 ) frecpoints->SetTimeBestC(Int_t(besttimeC));
304 AliDebug(1,Form(" besttimeA %f ps, besttimeC %f ps",besttimeA, besttimeC));
305 Float_t c = 0.0299792; // cm/ps
307 if(besttimeA !=999999 && besttimeC != 999999 ){
308 timeDiff = (besttimeC - besttimeA)*channelWidth;
309 meanTime = (meanT0 - (besttimeA + besttimeC)/2) * channelWidth;
310 vertex = c*(timeDiff)/2. + (fdZonA - fdZonC)/2; //-(lenr-lenl))/2;
311 AliDebug(1,Form(" timeDiff %f ps, meanTime %f ps, vertex %f cm",timeDiff, meanTime,vertex ));
312 frecpoints->SetVertex(vertex);
313 frecpoints->SetMeanTime(Int_t(meanTime));
316 //time in each channel as time[ipmt]-MeanTimeinThisChannel(with vertex=0)
318 for (Int_t ipmt=0; ipmt<24; ipmt++) {
320 time[ipmt] = (time[ipmt] - fTime0vertex[ipmt])*channelWidth;
321 frecpoints->SetTime(ipmt,time[ipmt]);
334 //____________________________________________________________
336 void AliT0Reconstructor::FillESD(TTree */*digitsTree*/, TTree *clustersTree, AliESDEvent *pESD) const
339 /***************************************************
340 Resonstruct digits to vertex position
341 ****************************************************/
343 AliDebug(1,Form("Start FillESD T0"));
345 TTree *treeR = clustersTree;
347 AliT0RecPoint* frecpoints= new AliT0RecPoint ();
349 AliError("Reconstruct Fill ESD >> no recpoints found");
353 AliDebug(1,Form("Start FillESD T0"));
354 TBranch *brRec = treeR->GetBranch("T0");
356 brRec->SetAddress(&frecpoints);
358 AliError(Form("EXEC Branch T0 rec not found"));
363 Float_t amp[24], time[24];
364 Float_t zPosition = frecpoints -> GetVertex();
365 Float_t timeStart = frecpoints -> GetMeanTime() ;
366 for ( Int_t i=0; i<24; i++) {
367 time[i] = Float_t (frecpoints -> GetTime(i)); // ps to ns
368 amp[i] = frecpoints -> GetAmp(i);
370 pESD->SetT0zVertex(zPosition); //vertex Z position
371 pESD->SetT0(timeStart); // interaction time
372 pESD->SetT0time(time); // best TOF on each PMT
373 pESD->SetT0amplitude(amp); // number of particles(MIPs) on each PMT
375 AliDebug(1,Form(" Z position %f cm, T0 %f ps",zPosition , timeStart));
377 } // vertex in 3 sigma