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"
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"
40 //#include <TGeoManager.h>
41 //#include <TClonesArray.h>
42 //#include <TString.h>
43 //#include <TGeoPNEntry.h>
44 //#include <TGeoPhysicalNode.h>
45 //#include <TGeoHMatrix.h>
47 ClassImp(AliT0Reconstructor)
49 AliT0Reconstructor:: AliT0Reconstructor(): AliReconstructor(),
53 AliDebug(1,"Start reconstructor ");
55 //____________________________________________________________________
57 AliT0Reconstructor::AliT0Reconstructor(const AliT0Reconstructor &r):
62 // AliT0Reconstructor copy constructor
65 ((AliT0Reconstructor &) r).Copy(*this);
69 //_____________________________________________________________________________
70 AliT0Reconstructor &AliT0Reconstructor::operator=(const AliT0Reconstructor &r)
73 // Assignment operator
76 if (this != &r) ((AliT0Reconstructor &) r).Copy(*this);
81 //_____________________________________________________________________________
83 void AliT0Reconstructor::Reconstruct(TTree*digitsTree, TTree*clustersTree) const
86 // T0 digits reconstruction
90 Float_t time0vertex[24];
91 TObjArray slewingLEDrec;
94 TArrayI * timeCFD = new TArrayI(24);
95 TArrayI * timeLED = new TArrayI(24);
96 TArrayI * chargeQT0 = new TArrayI(24);
97 TArrayI * chargeQT1 = new TArrayI(24);
99 AliT0Parameters* param = AliT0Parameters::Instance();
101 AliT0Calibrator *calib=new AliT0Calibrator();
103 // Int_t mV2Mip = param->GetmV2Mip();
104 //mV2Mip = param->GetmV2Mip();
105 Int_t channelWidth = param->GetChannelWidth() ;
106 Int_t meanT0 = param->GetMeanT0();
108 for (Int_t i=0; i<24; i++){
109 TGraph* gr = param ->GetSlewRec(i);
110 slewingLEDrec.AddAtAndExpand(gr,i) ;
111 time0vertex[i]= param->GetTimeDelayDA(i);
115 AliDebug(1,Form("Start DIGITS reconstruction "));
117 TBranch *brDigits=digitsTree->GetBranch("T0");
118 AliT0digit *fDigits = new AliT0digit() ;
120 brDigits->SetAddress(&fDigits);
122 cerr<<"EXEC Branch T0 digits not found"<<endl;
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 Int_t qt0= chargeQT0->At(ipmt);
149 Int_t qt1= chargeQT1->At(ipmt);
150 if((qt1-qt0)>0) adc[ipmt] = TMath::Exp( Double_t (channelWidth*(qt1-qt0)/1000));
151 // time[ipmt] = channelWidth * (calib-> WalkCorrection( ipmt,qt1 , timeCFD->At(ipmt) ) ) ;
152 time[ipmt] = calib-> WalkCorrection( ipmt,qt1 , timeCFD->At(ipmt) ) ;
155 Double_t sl = (timeLED->At(ipmt) - timeCFD->At(ipmt))*channelWidth;
156 Double_t qt=((TGraph*)slewingLEDrec.At(ipmt))->Eval(sl/1000.);
157 // frecpoints->SetTime(ipmt,time[ipmt]);
158 frecpoints->SetAmp(ipmt,adc[ipmt]);
159 frecpoints->SetAmpLED(ipmt,qt);
167 for (Int_t ipmt=0; ipmt<12; ipmt++){
168 if(time[ipmt] > 1 ) {
169 if(time[ipmt]<besttimeC){
170 besttimeC=time[ipmt]; //timeC
175 for ( Int_t ipmt=12; ipmt<24; ipmt++){
177 if(time[ipmt]<besttimeA) {
178 besttimeA=time[ipmt]; //timeA
182 if(besttimeA !=999999) frecpoints->SetTimeBestA(Int_t(besttimeA));
183 if( besttimeC != 999999 ) frecpoints->SetTimeBestC(Int_t(besttimeC));
184 AliDebug(1,Form(" besttimeA %f ps, besttimeC %f ps",besttimeA, besttimeC));
185 Float_t c = 0.0299792; // cm/ps
187 if(besttimeA !=999999 && besttimeC != 999999 ){
188 timeDiff =(besttimeC - besttimeA)*channelWidth;
189 meanTime = (meanT0 - (besttimeA + besttimeC)/2) * channelWidth;
190 vertex = c*(timeDiff)/2.; //-(lenr-lenl))/2;
191 AliDebug(1,Form(" timeDiff %f ps, meanTime %f ps, vertex %f cm",timeDiff, meanTime,vertex ));
192 frecpoints->SetVertex(vertex);
193 frecpoints->SetMeanTime(Int_t(meanTime));
196 //time in each channel as time[ipmt]-MeanTimeinThisChannel(with vertex=0)
197 for (Int_t ipmt=0; ipmt<24; ipmt++) {
199 time[ipmt] = (time[ipmt] - time0vertex[ipmt])*channelWidth;
200 frecpoints->SetTime(ipmt,time[ipmt]);
203 clustersTree->Fill();
212 //_______________________________________________________________________
214 void AliT0Reconstructor::Reconstruct(AliRawReader* rawReader, TTree*recTree) const
217 // T0RecPoint writing
219 //Q->T-> coefficients !!!! should be measured!!!
220 Float_t time0vertex[24];
221 Int_t allData[110][5];
222 TObjArray slewingLEDrec;
225 TArrayI * timeCFD = new TArrayI(24);
226 TArrayI * timeLED = new TArrayI(24);
227 TArrayI * chargeQT0 = new TArrayI(24);
228 TArrayI * chargeQT1 = new TArrayI(24);
230 for (Int_t i=0; i<110; i++) {
234 AliT0RawReader myrawreader(rawReader);
235 if (!myrawreader.Next())
236 AliDebug(1,Form(" no raw data found!! %i", myrawreader.Next()));
237 for (Int_t i=0; i<110; i++) {
238 allData[i][0]=myrawreader.GetData(i,0);
241 AliT0Parameters* param = AliT0Parameters::Instance();
243 AliT0Calibrator *calib=new AliT0Calibrator();
245 Int_t mV2Mip = param->GetmV2Mip();
246 //mV2Mip = param->GetmV2Mip();
247 Int_t channelWidth = param->GetChannelWidth() ;
248 Int_t meanT0 = param->GetMeanT0();
250 for (Int_t i=0; i<24; i++){
251 TGraph* gr = param ->GetSlewRec(i);
252 slewingLEDrec.AddAtAndExpand(gr,i) ;
253 time0vertex[i]= param->GetTimeDelayDA(i);
257 for (Int_t in=0; in<24; in++)
259 timeLED->AddAt(allData[in+1][0],in);
260 timeCFD->AddAt(allData[in+25][0],in);
261 chargeQT1->AddAt(allData[in+55][0],in);
262 chargeQT0->AddAt(allData[in+79][0],in);
263 AliDebug(10, Form(" readed Raw %i %i %i %i %i", in, timeLED->At(in),timeCFD->At(in),chargeQT0->At(in),chargeQT1->At(in)));
266 Float_t besttimeA=999999;
267 Float_t besttimeC=999999;
268 Int_t pmtBestA=99999;
269 Int_t pmtBestC=99999;
270 Float_t timeDiff=999999, meanTime=0;
273 AliT0RecPoint* frecpoints= new AliT0RecPoint ();
275 recTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1);
278 Float_t time[24], adc[24];
279 for (Int_t ipmt=0; ipmt<24; ipmt++) {
280 if(timeCFD->At(ipmt)>0 ){
281 Int_t qt0= chargeQT0->At(ipmt);
282 Int_t qt1= chargeQT1->At(ipmt);
283 if((qt1-qt0)>0) adc[ipmt] = TMath::Exp( Double_t (channelWidth*(qt1-qt0)/1000));
284 // time[ipmt] = channelWidth * (calib-> WalkCorrection( ipmt,qt1 , timeCFD->At(ipmt) ) ) ;
285 time[ipmt] = calib-> WalkCorrection( ipmt,qt1 , timeCFD->At(ipmt) ) ;
286 Double_t sl = (timeLED->At(ipmt) - timeCFD->At(ipmt))*channelWidth;
287 Double_t qt=((TGraph*)slewingLEDrec.At(ipmt))->Eval(sl/1000.);
288 frecpoints->SetTime(ipmt,time[ipmt]);
289 frecpoints->SetAmp(ipmt,adc[ipmt]);
290 frecpoints->SetAmpLED(ipmt,qt);
298 for (Int_t ipmt=0; ipmt<12; ipmt++){
299 if(time[ipmt] > 1 ) {
300 if(time[ipmt]<besttimeC){
301 besttimeC=time[ipmt]; //timeC
306 for ( Int_t ipmt=12; ipmt<24; ipmt++){
308 if(time[ipmt]<besttimeA) {
309 besttimeA=time[ipmt]; //timeA
313 if(besttimeA !=999999) frecpoints->SetTimeBestA(Int_t(besttimeA));
314 if( besttimeC != 999999 ) frecpoints->SetTimeBestC(Int_t(besttimeC));
315 AliDebug(1,Form(" besttimeA %f ps, besttimeC %f ps",besttimeA, besttimeC));
316 Float_t c = 0.0299792; // cm/ps
318 if(besttimeA !=999999 && besttimeC != 999999 ){
319 timeDiff = (besttimeC - besttimeA)*channelWidth;
320 // meanTime = (besttimeA + besttimeC)/2.;
321 meanTime = (meanT0 - (besttimeA + besttimeC)/2) * channelWidth;
322 vertex = c*(timeDiff)/2.; //-(lenr-lenl))/2;
323 AliDebug(1,Form(" timeDiff %f ps, meanTime %f ps, vertex %f cm",timeDiff, meanTime,vertex ));
324 frecpoints->SetVertex(vertex);
325 frecpoints->SetMeanTime(Int_t(meanTime));
328 //time in each channel as time[ipmt]-MeanTimeinThisChannel(with vertex=0)
329 for (Int_t ipmt=0; ipmt<24; ipmt++) {
331 time[ipmt] = (time[ipmt] - time0vertex[ipmt])*channelWidth;
332 frecpoints->SetTime(ipmt,time[ipmt]);
344 //____________________________________________________________
346 void AliT0Reconstructor::FillESD(AliRunLoader* runLoader, AliESD *pESD) const
349 /***************************************************
350 Resonstruct digits to vertex position
351 ****************************************************/
355 AliError("Reconstruct >> No run loader");
359 AliDebug(1,Form("Start FillESD T0"));
361 AliT0Loader* pStartLoader = (AliT0Loader*) runLoader->GetLoader("T0Loader");
363 pStartLoader->LoadRecPoints("READ");
365 TTree *treeR = pStartLoader->TreeR();
367 AliT0RecPoint* frecpoints= new AliT0RecPoint ();
369 AliError("Reconstruct Fill ESD >> no recpoints found");
373 AliDebug(1,Form("Start FillESD T0"));
374 TBranch *brRec = treeR->GetBranch("T0");
376 brRec->SetAddress(&frecpoints);
378 cerr<<"EXEC Branch T0 rec not found"<<endl;
384 Float_t timeStart, Zposition, amp[24], time[24];
386 Zposition = frecpoints -> GetVertex();
387 timeStart = frecpoints -> GetMeanTime() ;
388 for ( i=0; i<24; i++) {
389 time[i] = Float_t (frecpoints -> GetTime(i)); // ps to ns
390 amp[i] = frecpoints -> GetAmp(i);
392 pESD->SetT0zVertex(Zposition); //vertex Z position
393 pESD->SetT0(timeStart); // interaction time
394 pESD->SetT0time(time); // best TOF on each PMT
395 pESD->SetT0amplitude(amp); // number of particles(MIPs) on each PMT
397 AliDebug(1,Form(" Z position %f cm, T0 %f ps",Zposition , timeStart));
399 pStartLoader->UnloadRecPoints();
401 } // vertex in 3 sigma