In the clusterizer and rawData the creation of the tracklet loader and
[u/mrichter/AliRoot.git] / T0 / AliT0Reconstructor.cxx
CommitLineData
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
39ClassImp(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
adf36b9d 66 // fdZonC = TMath::Abs(fParam->GetZPositionShift("T0/C/PMT1"));
67 //fdZonA = TMath::Abs(fParam->GetZPositionShift("T0/A/PMT15"));
68
539b9cb9 69
12e9daf9 70 fCalib = new AliT0Calibrator();
71
c41ceaac 72}
c41ceaac 73
74//_____________________________________________________________________________
dc7ca31d 75void AliT0Reconstructor::Reconstruct(TTree*digitsTree, TTree*clustersTree) const
94c27e4f 76
dc7ca31d 77{
94c27e4f 78 // T0 digits reconstruction
c555f418 79 Int_t refAmp = GetRecoParam()->GetRefAmp();
776de217 80
c41ceaac 81 TArrayI * timeCFD = new TArrayI(24);
82 TArrayI * timeLED = new TArrayI(24);
83 TArrayI * chargeQT0 = new TArrayI(24);
84 TArrayI * chargeQT1 = new TArrayI(24);
74adb36a 85
d0bcd1fb 86
8955c6b4 87 Float_t channelWidth = fParam->GetChannelWidth() ;
b95e8d87 88 Float_t meanVertex = fParam->GetMeanVertex();
776de217 89 Float_t c = 0.0299792; // cm/ps
adf36b9d 90 Double32_t vertex = 9999999;
91 Double32_t timeDiff=999999, meanTime=999999, timeclock=999999;
776de217 92
94c27e4f 93
dc7ca31d 94 AliDebug(1,Form("Start DIGITS reconstruction "));
94c27e4f 95
2e6a5ee0 96
d0bcd1fb 97 TBranch *brDigits=digitsTree->GetBranch("T0");
e0bba6cc 98 AliT0digit *fDigits = new AliT0digit() ;
dc7ca31d 99 if (brDigits) {
100 brDigits->SetAddress(&fDigits);
101 }else{
f16935f7 102 AliError(Form("EXEC Branch T0 digits not found"));
103 return;
dc7ca31d 104 }
e0bba6cc 105
c41ceaac 106 digitsTree->GetEvent(0);
107 digitsTree->GetEntry(0);
108 brDigits->GetEntry(0);
109 fDigits->GetTimeCFD(*timeCFD);
110 fDigits->GetTimeLED(*timeLED);
111 fDigits->GetQT0(*chargeQT0);
112 fDigits->GetQT1(*chargeQT1);
446d6ec4 113 Int_t onlineMean = fDigits->MeanTime();
c883fdf2 114
adf36b9d 115 Bool_t tr[5];
116 for (Int_t i=0; i<5; i++) tr[i]=false;
c41ceaac 117
adf36b9d 118 Double32_t besttimeA=999999;
119 Double32_t besttimeC=999999;
c41ceaac 120 Int_t pmtBestA=99999;
121 Int_t pmtBestC=99999;
dc7ca31d 122
94c27e4f 123 AliT0RecPoint* frecpoints= new AliT0RecPoint ();
124 clustersTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1);
125
b95e8d87 126 Float_t time[24], adc[24];
dc7ca31d 127 for (Int_t ipmt=0; ipmt<24; ipmt++) {
c41ceaac 128 if(timeCFD->At(ipmt)>0 ){
d0bcd1fb 129 if(( chargeQT1->At(ipmt) - chargeQT0->At(ipmt))>0)
130 adc[ipmt] = chargeQT1->At(ipmt) - chargeQT0->At(ipmt);
a7027400 131 else
d0bcd1fb 132 adc[ipmt] = 0;
133
541b42c4 134 // time[ipmt] = fCalib-> WalkCorrection(refAmp, ipmt, adc[ipmt], timeCFD->At(ipmt)) ;
d0bcd1fb 135
136 Double_t sl = Double_t(timeLED->At(ipmt) - timeCFD->At(ipmt));
541b42c4 137 time[ipmt] = fCalib-> WalkCorrection( refAmp,ipmt, Int_t(sl), timeCFD->At(ipmt) ) ;
d0bcd1fb 138 AliDebug(10,Form(" ipmt %i QTC %i , time in chann %i (led-cfd) %i ",
139 ipmt, Int_t(adc[ipmt]) ,Int_t(time[ipmt]),Int_t( sl)));
776de217 140
d0bcd1fb 141 Double_t ampMip =((TGraph*)fAmpLED.At(ipmt))->Eval(sl);
142 Double_t qtMip = ((TGraph*)fQTC.At(ipmt))->Eval(adc[ipmt]);
143 AliDebug(10,Form(" Amlitude in MIPS LED %f , QTC %f in channels %i\n ",ampMip,qtMip, adc[ipmt]));
144
145 frecpoints->SetTime(ipmt, Float_t(time[ipmt]) );
146 frecpoints->SetAmp(ipmt, Float_t( ampMip)); //for cosmic &pp beam
147 frecpoints->SetAmpLED(ipmt, Float_t(qtMip));
148
dc7ca31d 149 }
150 else {
151 time[ipmt] = 0;
152 adc[ipmt] = 0;
153 }
154 }
94c27e4f 155
dc7ca31d 156 for (Int_t ipmt=0; ipmt<12; ipmt++){
157 if(time[ipmt] > 1 ) {
c41ceaac 158 if(time[ipmt]<besttimeC){
159 besttimeC=time[ipmt]; //timeC
160 pmtBestC=ipmt;
dc7ca31d 161 }
162 }
163 }
164 for ( Int_t ipmt=12; ipmt<24; ipmt++){
165 if(time[ipmt] > 1) {
c41ceaac 166 if(time[ipmt]<besttimeA) {
167 besttimeA=time[ipmt]; //timeA
168 pmtBestA=ipmt;}
dc7ca31d 169 }
170 }
adf36b9d 171 if(besttimeA < 999999) {
172 frecpoints->SetTimeBestA(Int_t(besttimeA *channelWidth));
173 tr[1]=true;
174 }
175 if( besttimeC < 999999 ) {
176 frecpoints->SetTimeBestC(Int_t(besttimeC *channelWidth));
177 tr[2]=true;
178 }
d0bcd1fb 179 AliDebug(10,Form(" besttimeA %f ch, besttimeC %f ch",besttimeA, besttimeC));
adf36b9d 180 if(besttimeA <999999 && besttimeC < 999999 ){
9b83615d 181 // timeDiff = (besttimeC - besttimeA)*channelWidth;
182 timeDiff = (besttimeA - besttimeC)*channelWidth;
adf36b9d 183 meanTime = (besttimeA + besttimeC)/2;// * channelWidth);
184 timeclock = meanTime *channelWidth ;
185 vertex = meanVertex - c*(timeDiff)/2.;// + (fdZonA - fdZonC)/2;
186 tr[0]=true;
187 }
188 frecpoints->SetVertex(vertex);
189 frecpoints->SetMeanTime(meanTime);
190 frecpoints->SetT0clock(timeclock);
191 frecpoints->SetT0Trig(tr);
192
193 for (Int_t i=0; i<5; i++) {
194 printf(" T0 trigers %i ",tr[i]);
195 }
196 printf(" \n ");
197
198 //online mean
199 frecpoints->SetOnlineMean(Int_t(onlineMean));
200 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));
201
202
203
204
b95e8d87 205
dc7ca31d 206 clustersTree->Fill();
bd375212 207
208 delete timeCFD;
209 delete timeLED;
210 delete chargeQT0;
211 delete chargeQT1;
dc7ca31d 212}
213
214
c41ceaac 215//_______________________________________________________________________
216
217void AliT0Reconstructor::Reconstruct(AliRawReader* rawReader, TTree*recTree) const
218{
94c27e4f 219 // T0 raw ->
539b9cb9 220 //
221 // reference amplitude and time ref. point from reco param
222
c555f418 223 Int_t refAmp = GetRecoParam()->GetRefAmp();
224 Int_t refPoint = GetRecoParam()->GetRefPoint();
adf36b9d 225 Float_t latencyL1 = GetRecoParam()->GetLatencyL1();
e9626e76 226 Float_t latencyL1A = GetRecoParam()->GetLatencyL1A();
227 Float_t latencyL1C = GetRecoParam()->GetLatencyL1C();
adf36b9d 228 Float_t latencyHPTDC = GetRecoParam()->GetLatencyHPTDC();
229 Float_t vertexshift = GetRecoParam()->GetVertexShift();
e9626e76 230 AliDebug(10,Form(" LatencyL1 %f latencyL1A %f latencyL1C %f latencyHPTDC %f \n",latencyL1,latencyL1A,latencyL1C, latencyHPTDC));
e8ed1cd0 231 Int_t allData[110][5];
2e6a5ee0 232
e8ed1cd0 233 Int_t timeCFD[24], timeLED[24], chargeQT0[24], chargeQT1[24];
adf36b9d 234 Double32_t timeDiff=999999, meanTime=999999, timeclock=999999;
235 Float_t c = 29.9792458; // cm/ns
236 Double32_t vertex = 9999999;
776de217 237 Int_t onlineMean=0;
adf36b9d 238
bce12dc5 239 for (Int_t i0=0; i0<105; i0++)
240 {
241 for (Int_t j0=0; j0<5; j0++) allData[i0][j0]=0;
242 }
2e6a5ee0 243
adf36b9d 244 Double32_t besttimeA=9999999;
245 Double32_t besttimeC=9999999;
bce12dc5 246 Int_t pmtBestA=99999;
247 Int_t pmtBestC=99999;
e9626e76 248 // Float_t meanVertex = fParam->GetMeanVertex();
249 Float_t meanVertex = 0;
29a60970 250
bce12dc5 251 AliT0RecPoint* frecpoints= new AliT0RecPoint ();
252
253 recTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1);
2e6a5ee0 254
bce12dc5 255 AliDebug(10," before read data ");
256 AliT0RawReader myrawreader(rawReader);
776de217 257
258 UInt_t type =rawReader->GetType();
259
bce12dc5 260 if (!myrawreader.Next())
261 AliDebug(1,Form(" no raw data found!!"));
262 else
263 {
776de217 264 if(type == 7) { //only physics
bce12dc5 265 for (Int_t i=0; i<105; i++) {
266 for (Int_t iHit=0; iHit<5; iHit++)
267 {
268 allData[i][iHit] = myrawreader.GetData(i,iHit);
269 }
270 }
541b42c4 271 Int_t ref=0;
272 if (refPoint>0)
adf36b9d 273 ref = allData[refPoint][0]-5000;
541b42c4 274
bce12dc5 275 Float_t channelWidth = fParam->GetChannelWidth() ;
276
277 // Int_t meanT0 = fParam->GetMeanT0();
d0bcd1fb 278
bce12dc5 279
280 for (Int_t in=0; in<12; in++)
281 {
282 timeCFD[in] = allData[in+1][0] ;
283 timeCFD[in+12] = allData[in+56+1][0] ;
284 timeLED[in] = allData[in+12+1][0] ;
285 timeLED[in+12] = allData[in+68+1][0] ;
d0bcd1fb 286 AliDebug(10, Form(" readed i %i cfdC %i cfdA %i ledC %i ledA%i ",
287 in, timeCFD[in],timeCFD[in+12],timeLED[in],
288 timeLED[in+12]));
bce12dc5 289 }
290
291 for (Int_t in=0; in<12; in++)
292 {
d0bcd1fb 293 chargeQT0[in]=allData[2*in+25][0];
294 chargeQT1[in]=allData[2*in+26][0];
bce12dc5 295 }
296
297 for (Int_t in=12; in<24; in++)
298 {
d0bcd1fb 299 chargeQT0[in]=allData[2*in+57][0];
300 chargeQT1[in]=allData[2*in+58][0];
bce12dc5 301 }
302
d0bcd1fb 303 // } //cosmic with physics event
2e6a5ee0 304 for (Int_t in=0; in<24; in++)
c883fdf2 305 AliDebug(10, Form(" readed Raw %i %i %i %i %i",
306 in, timeLED[in],timeCFD[in],chargeQT0[in],chargeQT1[in]));
776de217 307 onlineMean = allData[49][0];
2e6a5ee0 308
adf36b9d 309 Double32_t time[24], adc[24];
2e6a5ee0 310 for (Int_t ipmt=0; ipmt<24; ipmt++) {
311 if(timeCFD[ipmt]>0 && timeLED[ipmt]>0){
bce12dc5 312 //for simulated data
d0bcd1fb 313 //for physics data
314 if(( chargeQT1[ipmt] - chargeQT0[ipmt])>0)
541b42c4 315 adc[ipmt] = chargeQT0[ipmt] - chargeQT1[ipmt];
d0bcd1fb 316 else
317 adc[ipmt] = 0;
bce12dc5 318
539b9cb9 319
40043664 320 // time[ipmt] = fCalib-> WalkCorrection(refAmp, ipmt, adc[ipmt], timeCFD[ipmt] ) ;
bce12dc5 321
d0bcd1fb 322 Double_t sl = timeLED[ipmt] - timeCFD[ipmt];
40043664 323 time[ipmt] = fCalib-> WalkCorrection( refAmp,ipmt, Int_t(sl), timeCFD[ipmt] ) ;
d0bcd1fb 324 AliDebug(10,Form(" ipmt %i QTC %i , time in chann %i (led-cfd) %i ",
325 ipmt, Int_t(adc[ipmt]) ,Int_t(time[ipmt]),Int_t( sl)));
326 Double_t ampMip =( (TGraph*)fAmpLED.At(ipmt))->Eval(sl);
327 Double_t qtMip = ((TGraph*)fQTC.At(ipmt))->Eval(adc[ipmt]);
328 AliDebug(10,Form(" Amlitude in MIPS LED %f ; QTC %f; in channels %i\n ",ampMip,qtMip, adc[ipmt]));
bce12dc5 329
adf36b9d 330 // frecpoints->SetTime(ipmt, Float_t(time[ipmt]) );
331 frecpoints->SetTime(ipmt,Double32_t(timeCFD[ipmt]));
332 frecpoints->SetAmpLED(ipmt, Double32_t( qtMip)); //for cosmic &pp beam
333 frecpoints->SetAmp(ipmt, Double32_t(ampMip));
bce12dc5 334
2e6a5ee0 335 }
336 else {
337 time[ipmt] = 0;
338 adc[ipmt] = 0;
339 }
340 }
341
342 for (Int_t ipmt=0; ipmt<12; ipmt++){
343 if(time[ipmt] > 1 ) {
344 if(time[ipmt]<besttimeC){
345 besttimeC=time[ipmt]; //timeC
346 pmtBestC=ipmt;
347 }
348 }
349 }
350 for ( Int_t ipmt=12; ipmt<24; ipmt++){
351 if(time[ipmt] > 1) {
352 if(time[ipmt]<besttimeA) {
353 besttimeA=time[ipmt]; //timeA
354 pmtBestA=ipmt;}
355 }
356 }
adf36b9d 357 if(besttimeA < 999999)
e9626e76 358 frecpoints->SetTimeBestA(0.001* besttimeA * channelWidth - latencyHPTDC + latencyL1A);
adf36b9d 359 if( besttimeC < 999999 )
e9626e76 360 frecpoints->SetTimeBestC( 0.001 *besttimeC * channelWidth - latencyHPTDC + latencyL1C);
adf36b9d 361 AliDebug(10,Form(" pmtA %i besttimeA %f ps, pmtC %i besttimeC %f ps",
d0bcd1fb 362 pmtBestA,besttimeA, pmtBestC, besttimeC));
adf36b9d 363 if(besttimeA <999999 && besttimeC < 999999 ){
364 timeDiff = ( besttimeA - besttimeC) *0.001 * channelWidth;
e9626e76 365 timeclock = 0.001*channelWidth * Float_t( besttimeA+besttimeC)/2. - latencyHPTDC + latencyL1;
adf36b9d 366 meanTime = (besttimeA+besttimeC-2.*Float_t(ref))/2.;
367 vertex = meanVertex - c*(timeDiff)/2. + vertexshift; //+ (fdZonA - fdZonC)/2;
368 }
776de217 369 } //if phys event
adf36b9d 370 AliDebug(5,Form(" timeDiff %f #channel, meanTime %f #channel, TOFmean%f vertex %f cm meanVertex %f online mean %i \n",timeDiff, meanTime,timeclock, vertex,meanVertex, onlineMean));
776de217 371 frecpoints->SetT0clock(timeclock);
372 frecpoints->SetVertex(vertex);
adf36b9d 373 frecpoints->SetMeanTime(meanTime);
776de217 374 frecpoints->SetOnlineMean(Int_t(onlineMean));
adf36b9d 375 // Set triggers
376
377 Bool_t tr[5];
378 Int_t trchan[5]= {50,51,52,55,56};
379 for (Int_t i=0; i<5; i++) tr[i]=false;
380 for (Int_t itr=0; itr<5; itr++) {
381 if(allData[trchan[itr]][0]>0) tr[itr]=true;
382 frecpoints->SetT0Trig(tr);
383 }
384 for (Int_t i=0; i<5; i++)
385 printf(" T0 trigers %i ",tr[i]);
386 printf(" \n ");
387
388
389 } // if (else )raw data
390 recTree->Fill();
391 if(frecpoints) delete frecpoints;
392 }
393
394
395 //____________________________________________________________
396
397 void AliT0Reconstructor::FillESD(TTree */*digitsTree*/, TTree *clustersTree, AliESDEvent *pESD) const
398 {
dc7ca31d 399
400 /***************************************************
401 Resonstruct digits to vertex position
402 ****************************************************/
403
dc7ca31d 404 AliDebug(1,Form("Start FillESD T0"));
0d96e32b 405
adf36b9d 406 Float_t c = 29.9792458; // cm/ns
407 Float_t currentVertex=0, shift=0;
408 Int_t ncont=0;
409 const AliESDVertex* vertex = pESD->GetPrimaryVertex();
410 if (!vertex) vertex = pESD->GetPrimaryVertexSPD();
411 if (!vertex) vertex = pESD->GetPrimaryVertexTPC();
412 if (!vertex) vertex = pESD->GetVertex();
413
414 if (vertex) {
415 AliDebug(2, Form("Got %s (%s) from ESD: %f",
416 vertex->GetName(), vertex->GetTitle(), vertex->GetZ()));
417 currentVertex = vertex->GetZ();
418
419 ncont = vertex->GetNContributors();
420 // cout<<" spdver "<<spdver<<" ncont "<<ncont<<endl;
421 if(ncont>3 ) {
422 // hVertexSPD->Fill(spdver);
423 shift = currentVertex/c;
424 // cout<<" vertex shif "<<shift<<" vertex "<<spdver<<" IsFromVertexer3D "<<fverSPD->IsFromVertexer3D()<<endl;
425 }
426 }
d76c31f4 427 TTree *treeR = clustersTree;
dc7ca31d 428
429 AliT0RecPoint* frecpoints= new AliT0RecPoint ();
430 if (!frecpoints) {
431 AliError("Reconstruct Fill ESD >> no recpoints found");
432 return;
433 }
434
435 AliDebug(1,Form("Start FillESD T0"));
436 TBranch *brRec = treeR->GetBranch("T0");
437 if (brRec) {
438 brRec->SetAddress(&frecpoints);
439 }else{
f16935f7 440 AliError(Form("EXEC Branch T0 rec not found"));
dc7ca31d 441 return;
442 }
443
444 brRec->GetEntry(0);
adf36b9d 445 Double32_t amp[24], time[24];
446 Double32_t timeClock[3];
447 Double32_t zPosition = frecpoints -> GetVertex();
448 Double32_t timeStart = frecpoints -> GetMeanTime();
449 timeClock[0] = frecpoints -> GetT0clock() ;
450 timeClock[1] = frecpoints -> GetBestTimeA() + shift;
451 timeClock[2] = frecpoints -> GetBestTimeC() - shift;
452 for ( Int_t i=0; i<24; i++) {
453 time[i] = frecpoints -> GetTime(i); // ps to ns
dc7ca31d 454 amp[i] = frecpoints -> GetAmp(i);
455 }
adf36b9d 456 Int_t trig= frecpoints ->GetT0Trig();
457 pESD->SetT0Trig(trig);
458
f16935f7 459 pESD->SetT0zVertex(zPosition); //vertex Z position
dc7ca31d 460 pESD->SetT0(timeStart); // interaction time
adf36b9d 461 for(Int_t i=0; i<3; i++)
462 pESD->SetT0TOF(i,timeClock[i]); // interaction time (ns)
dc7ca31d 463 pESD->SetT0time(time); // best TOF on each PMT
464 pESD->SetT0amplitude(amp); // number of particles(MIPs) on each PMT
adf36b9d 465
466 AliDebug(1,Form("T0: Vertex %f (T0A+T0C)/2 %f #channels T0signal %f ns OrA %f ns OrC %f T0trig %i\n",zPosition, timeStart, timeClock[0], timeClock[1], timeClock[2], trig));
467
468
dc7ca31d 469} // vertex in 3 sigma
470
471
472
473
474
475