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 **************************************************************************/
17 /*********************************************************************
18 * T0 reconstruction and filling ESD
19 * - reconstruct mean time (interation time)
22 ********************************************************************/
24 #include <AliESDEvent.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"
37 #include <Riostream.h>
39 ClassImp(AliT0Reconstructor)
41 AliT0Reconstructor:: AliT0Reconstructor(): AliReconstructor(),
53 fParam = AliT0Parameters::Instance();
56 for (Int_t i=0; i<24; i++){
57 TGraph* gr = fParam ->GetAmpLEDRec(i);
58 if (gr) fAmpLEDrec.AddAtAndExpand(gr,i) ;
59 TGraph* gr1 = fParam ->GetAmpLED(i);
60 if (gr1) fAmpLED.AddAtAndExpand(gr1,i) ;
61 TGraph* gr2 = fParam ->GetQTC(i);
62 if (gr2) fQTC.AddAtAndExpand(gr2,i) ;
66 fdZonC = TMath::Abs(fParam->GetZPositionShift("T0/C/PMT1"));
67 fdZonA = TMath::Abs(fParam->GetZPositionShift("T0/A/PMT15"));
69 fCalib = new AliT0Calibrator();
73 //_____________________________________________________________________________
74 void AliT0Reconstructor::Reconstruct(TTree*digitsTree, TTree*clustersTree) const
77 // T0 digits reconstruction
78 Int_t refAmp = GetRecoParam()->GetRefAmp();
80 TArrayI * timeCFD = new TArrayI(24);
81 TArrayI * timeLED = new TArrayI(24);
82 TArrayI * chargeQT0 = new TArrayI(24);
83 TArrayI * chargeQT1 = new TArrayI(24);
86 Float_t channelWidth = fParam->GetChannelWidth() ;
87 Float_t meanVertex = fParam->GetMeanVertex();
88 Float_t c = 0.0299792; // cm/ps
89 Float_t vertex = 9999999;
90 Int_t timeDiff=999999, meanTime=999999, timeclock=999999;
93 AliDebug(1,Form("Start DIGITS reconstruction "));
96 TBranch *brDigits=digitsTree->GetBranch("T0");
97 AliT0digit *fDigits = new AliT0digit() ;
99 brDigits->SetAddress(&fDigits);
101 AliError(Form("EXEC Branch T0 digits not found"));
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);
112 Int_t onlineMean = fDigits->MeanTime();
113 Int_t ref = fDigits->RefPoint();
116 Float_t besttimeA=999999;
117 Float_t besttimeC=999999;
118 Int_t pmtBestA=99999;
119 Int_t pmtBestC=99999;
121 AliT0RecPoint* frecpoints= new AliT0RecPoint ();
122 clustersTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1);
124 Float_t time[24], adc[24];
125 for (Int_t ipmt=0; ipmt<24; ipmt++) {
126 if(timeCFD->At(ipmt)>0 ){
127 if(( chargeQT1->At(ipmt) - chargeQT0->At(ipmt))>0)
128 adc[ipmt] = chargeQT1->At(ipmt) - chargeQT0->At(ipmt);
132 time[ipmt] = fCalib-> WalkCorrection(refAmp, ipmt, adc[ipmt], timeCFD->At(ipmt)) ;
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)));
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]));
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));
154 for (Int_t ipmt=0; ipmt<12; ipmt++){
155 if(time[ipmt] > 1 ) {
156 if(time[ipmt]<besttimeC){
157 besttimeC=time[ipmt]; //timeC
162 for ( Int_t ipmt=12; ipmt<24; ipmt++){
164 if(time[ipmt]<besttimeA) {
165 besttimeA=time[ipmt]; //timeA
169 if(besttimeA !=999999) frecpoints->SetTimeBestA(Int_t(besttimeA));
170 if( besttimeC != 999999 ) frecpoints->SetTimeBestC(Int_t(besttimeC));
171 AliDebug(10,Form(" besttimeA %f ch, besttimeC %f ch",besttimeA, besttimeC));
172 if(besttimeA !=999999 && besttimeC != 999999 ){
173 // timeDiff = (besttimeC - besttimeA)*channelWidth;
174 timeDiff = (besttimeA - besttimeC)*channelWidth;
175 meanTime = Float_t((besttimeA + besttimeC)/2);// * channelWidth);
176 timeclock = Float_t(meanTime - ref);
177 vertex = meanVertex - c*(timeDiff)/2.;// + (fdZonA - fdZonC)/2;
179 frecpoints->SetVertex(vertex);
180 frecpoints->SetMeanTime(meanTime);
181 frecpoints->SetT0clock(timeclock);
183 frecpoints->SetOnlineMean(Int_t(onlineMean));
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));
188 clustersTree->Fill();
197 //_______________________________________________________________________
199 void AliT0Reconstructor::Reconstruct(AliRawReader* rawReader, TTree*recTree) const
203 // reference amplitude and time ref. point from reco param
205 Int_t refAmp = GetRecoParam()->GetRefAmp();
206 Int_t refPoint = GetRecoParam()->GetRefPoint();
208 Int_t allData[110][5];
210 Int_t timeCFD[24], timeLED[24], chargeQT0[24], chargeQT1[24];
211 Int_t timeDiff=999999, meanTime=999999, timeclock=999999;
212 Float_t c = 0.0299792458; // cm/ps
213 Float_t vertex = 9999999;
215 for (Int_t i0=0; i0<105; i0++)
217 for (Int_t j0=0; j0<5; j0++) allData[i0][j0]=0;
220 Float_t besttimeA=9999999;
221 Float_t besttimeC=9999999;
222 Int_t pmtBestA=99999;
223 Int_t pmtBestC=99999;
224 Float_t meanVertex = fParam->GetMeanVertex();
226 AliT0RecPoint* frecpoints= new AliT0RecPoint ();
228 recTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1);
230 AliDebug(10," before read data ");
231 AliT0RawReader myrawreader(rawReader);
233 UInt_t type =rawReader->GetType();
235 if (!myrawreader.Next())
236 AliDebug(1,Form(" no raw data found!!"));
239 if(type == 7) { //only physics
240 for (Int_t i=0; i<105; i++) {
241 for (Int_t iHit=0; iHit<5; iHit++)
243 allData[i][iHit] = myrawreader.GetData(i,iHit);
247 Int_t ref = allData[refPoint][0]-5000.;
248 Float_t channelWidth = fParam->GetChannelWidth() ;
250 // Int_t meanT0 = fParam->GetMeanT0();
253 for (Int_t in=0; in<12; in++)
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] ;
259 AliDebug(10, Form(" readed i %i cfdC %i cfdA %i ledC %i ledA%i ",
260 in, timeCFD[in],timeCFD[in+12],timeLED[in],
264 for (Int_t in=0; in<12; in++)
266 chargeQT0[in]=allData[2*in+25][0];
267 chargeQT1[in]=allData[2*in+26][0];
270 for (Int_t in=12; in<24; in++)
272 chargeQT0[in]=allData[2*in+57][0];
273 chargeQT1[in]=allData[2*in+58][0];
276 // } //cosmic with physics event
277 for (Int_t in=0; in<24; in++)
278 AliDebug(10, Form(" readed Raw %i %i %i %i %i",
279 in, timeLED[in],timeCFD[in],chargeQT0[in],chargeQT1[in]));
280 onlineMean = allData[49][0];
282 Float_t time[24], adc[24];
283 for (Int_t ipmt=0; ipmt<24; ipmt++) {
284 if(timeCFD[ipmt]>0 && timeLED[ipmt]>0){
287 if(( chargeQT1[ipmt] - chargeQT0[ipmt])>0)
288 adc[ipmt] = chargeQT1[ipmt] - chargeQT0[ipmt];
293 time[ipmt] = fCalib-> WalkCorrection(refAmp, ipmt, adc[ipmt], timeCFD[ipmt] ) ;
295 Double_t sl = timeLED[ipmt] - timeCFD[ipmt];
296 // time[ipmt] = fCalib-> WalkCorrection( ipmt, Int_t(sl), timeCFD[ipmt] ) ;
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]));
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));
314 for (Int_t ipmt=0; ipmt<12; ipmt++){
315 if(time[ipmt] > 1 ) {
316 if(time[ipmt]<besttimeC){
317 besttimeC=time[ipmt]; //timeC
322 for ( Int_t ipmt=12; ipmt<24; ipmt++){
324 if(time[ipmt]<besttimeA) {
325 besttimeA=time[ipmt]; //timeA
329 if(besttimeA !=9999999) frecpoints->SetTimeBestA(Int_t(besttimeA));
330 if( besttimeC != 9999999 ) frecpoints->SetTimeBestC(Int_t(besttimeC));
331 AliDebug(5,Form(" pmtA %i besttimeA %f ps, pmtC %i besttimeC %f #channel",
332 pmtBestA,besttimeA, pmtBestC, besttimeC));
333 if(besttimeA <9999999 && besttimeC < 9999999 ){
334 timeDiff = ( besttimeA - besttimeC) *channelWidth;
335 meanTime = Float_t((besttimeA + besttimeC)/2.);
336 timeclock = Float_t(meanTime - ref);
337 vertex = meanVertex - c*(timeDiff)/2.; //+ (fdZonA - fdZonC)/2;
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));
347 } // if (else )raw data
349 if(frecpoints) delete frecpoints;
353 //____________________________________________________________
355 void AliT0Reconstructor::FillESD(TTree */*digitsTree*/, TTree *clustersTree, AliESDEvent *pESD) const
358 /***************************************************
359 Resonstruct digits to vertex position
360 ****************************************************/
362 AliDebug(1,Form("Start FillESD T0"));
364 TTree *treeR = clustersTree;
366 AliT0RecPoint* frecpoints= new AliT0RecPoint ();
368 AliError("Reconstruct Fill ESD >> no recpoints found");
372 AliDebug(1,Form("Start FillESD T0"));
373 TBranch *brRec = treeR->GetBranch("T0");
375 brRec->SetAddress(&frecpoints);
377 AliError(Form("EXEC Branch T0 rec not found"));
382 Float_t amp[24], time[24];
383 Float_t zPosition = frecpoints -> GetVertex();
384 Float_t timeStart = frecpoints -> GetMeanTime() ;
385 Float_t timeClock = frecpoints -> GetT0clock() ;
386 for ( Int_t i=0; i<24; i++) {
387 time[i] = Float_t (frecpoints -> GetTime(i)); // ps to ns
388 amp[i] = frecpoints -> GetAmp(i);
390 pESD->SetT0zVertex(zPosition); //vertex Z position
391 pESD->SetT0(timeStart); // interaction time
392 pESD->SetT0clock(timeClock); // interaction time with ref.point(spectrum)
393 pESD->SetT0time(time); // best TOF on each PMT
394 pESD->SetT0amplitude(amp); // number of particles(MIPs) on each PMT
396 AliDebug(1,Form(" Z position %f cm, T0 %f ps",zPosition , timeStart));
398 } // vertex in 3 sigma