all time measurements perfomed as difference with case vertex=0
[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/* $Id$ */
17
18#include <Riostream.h>
19
20#include <TDirectory.h>
21
22#include "AliRunLoader.h"
dc7ca31d 23#include <AliESD.h>
24#include "AliLog.h"
c41ceaac 25#include "AliT0Loader.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#include "AliCDBLocal.h"
34#include "AliCDBStorage.h"
35#include "AliCDBManager.h"
36#include "AliCDBEntry.h"
37
38#include <TArrayI.h>
39#include <TGraph.h>
bd375212 40//#include <TGeoManager.h>
41//#include <TClonesArray.h>
42//#include <TString.h>
43//#include <TGeoPNEntry.h>
44//#include <TGeoPhysicalNode.h>
45//#include <TGeoHMatrix.h>
dc7ca31d 46
47ClassImp(AliT0Reconstructor)
48
c41ceaac 49 AliT0Reconstructor:: AliT0Reconstructor(): AliReconstructor(),
bd375212 50 fZposition(0)
c41ceaac 51
e0bba6cc 52{
c41ceaac 53 AliDebug(1,"Start reconstructor ");
54}
55//____________________________________________________________________
e0bba6cc 56
c41ceaac 57AliT0Reconstructor::AliT0Reconstructor(const AliT0Reconstructor &r):
c41ceaac 58 fZposition(0)
59
60{
61 //
62 // AliT0Reconstructor copy constructor
63 //
e0bba6cc 64
c41ceaac 65 ((AliT0Reconstructor &) r).Copy(*this);
e0bba6cc 66
67}
68
c41ceaac 69//_____________________________________________________________________________
70AliT0Reconstructor &AliT0Reconstructor::operator=(const AliT0Reconstructor &r)
dc7ca31d 71{
c41ceaac 72 //
73 // Assignment operator
74 //
75
76 if (this != &r) ((AliT0Reconstructor &) r).Copy(*this);
77 return *this;
e0bba6cc 78
dc7ca31d 79}
c41ceaac 80
81//_____________________________________________________________________________
82
dc7ca31d 83void AliT0Reconstructor::Reconstruct(TTree*digitsTree, TTree*clustersTree) const
94c27e4f 84
dc7ca31d 85{
94c27e4f 86 // T0 digits reconstruction
87 // T0RecPoint writing
c41ceaac 88
94c27e4f 89
90 Float_t time0vertex[24];
c41ceaac 91 TObjArray slewingLEDrec;
92 TObjArray walk;
94c27e4f 93
c41ceaac 94 TArrayI * timeCFD = new TArrayI(24);
95 TArrayI * timeLED = new TArrayI(24);
96 TArrayI * chargeQT0 = new TArrayI(24);
97 TArrayI * chargeQT1 = new TArrayI(24);
98
dc7ca31d 99 AliT0Parameters* param = AliT0Parameters::Instance();
100 param->Init();
c41ceaac 101 AliT0Calibrator *calib=new AliT0Calibrator();
dc7ca31d 102
94c27e4f 103 // Int_t mV2Mip = param->GetmV2Mip();
dc7ca31d 104 //mV2Mip = param->GetmV2Mip();
105 Int_t channelWidth = param->GetChannelWidth() ;
94c27e4f 106 Int_t meanT0 = param->GetMeanT0();
dc7ca31d 107
108 for (Int_t i=0; i<24; i++){
c41ceaac 109 TGraph* gr = param ->GetSlewRec(i);
110 slewingLEDrec.AddAtAndExpand(gr,i) ;
94c27e4f 111 time0vertex[i]= param->GetTimeDelayDA(i);
dc7ca31d 112 }
5325480c 113
94c27e4f 114
dc7ca31d 115 AliDebug(1,Form("Start DIGITS reconstruction "));
94c27e4f 116
dc7ca31d 117 TBranch *brDigits=digitsTree->GetBranch("T0");
e0bba6cc 118 AliT0digit *fDigits = new AliT0digit() ;
dc7ca31d 119 if (brDigits) {
120 brDigits->SetAddress(&fDigits);
121 }else{
122 cerr<<"EXEC Branch T0 digits not found"<<endl;
123 return;
124 }
e0bba6cc 125
c41ceaac 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);
133
134 Float_t besttimeA=999999;
135 Float_t besttimeC=999999;
136 Int_t pmtBestA=99999;
137 Int_t pmtBestC=99999;
dc7ca31d 138 Float_t timeDiff=999999, meanTime=0;
139
e0bba6cc 140
141
94c27e4f 142 AliT0RecPoint* frecpoints= new AliT0RecPoint ();
143 clustersTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1);
144
dc7ca31d 145 Float_t time[24], adc[24];
146 for (Int_t ipmt=0; ipmt<24; ipmt++) {
c41ceaac 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));
94c27e4f 151 // time[ipmt] = channelWidth * (calib-> WalkCorrection( ipmt,qt1 , timeCFD->At(ipmt) ) ) ;
152 time[ipmt] = calib-> WalkCorrection( ipmt,qt1 , timeCFD->At(ipmt) ) ;
c41ceaac 153
154 //LED
94c27e4f 155 Double_t sl = (timeLED->At(ipmt) - timeCFD->At(ipmt))*channelWidth;
c41ceaac 156 Double_t qt=((TGraph*)slewingLEDrec.At(ipmt))->Eval(sl/1000.);
94c27e4f 157 // frecpoints->SetTime(ipmt,time[ipmt]);
dc7ca31d 158 frecpoints->SetAmp(ipmt,adc[ipmt]);
c41ceaac 159 frecpoints->SetAmpLED(ipmt,qt);
dc7ca31d 160 }
161 else {
162 time[ipmt] = 0;
163 adc[ipmt] = 0;
164 }
165 }
94c27e4f 166
dc7ca31d 167 for (Int_t ipmt=0; ipmt<12; ipmt++){
168 if(time[ipmt] > 1 ) {
c41ceaac 169 if(time[ipmt]<besttimeC){
170 besttimeC=time[ipmt]; //timeC
171 pmtBestC=ipmt;
dc7ca31d 172 }
173 }
174 }
175 for ( Int_t ipmt=12; ipmt<24; ipmt++){
176 if(time[ipmt] > 1) {
c41ceaac 177 if(time[ipmt]<besttimeA) {
178 besttimeA=time[ipmt]; //timeA
179 pmtBestA=ipmt;}
dc7ca31d 180 }
181 }
c41ceaac 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));
dc7ca31d 185 Float_t c = 0.0299792; // cm/ps
186 Float_t vertex = 0;
c41ceaac 187 if(besttimeA !=999999 && besttimeC != 999999 ){
94c27e4f 188 timeDiff =(besttimeC - besttimeA)*channelWidth;
189 meanTime = (meanT0 - (besttimeA + besttimeC)/2) * channelWidth;
dc7ca31d 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));
194
195 }
94c27e4f 196 //time in each channel as time[ipmt]-MeanTimeinThisChannel(with vertex=0)
197 for (Int_t ipmt=0; ipmt<24; ipmt++) {
198 if(time[ipmt]>1) {
199 time[ipmt] = (time[ipmt] - time0vertex[ipmt])*channelWidth;
200 frecpoints->SetTime(ipmt,time[ipmt]);
201 }
202 }
dc7ca31d 203 clustersTree->Fill();
bd375212 204
205 delete timeCFD;
206 delete timeLED;
207 delete chargeQT0;
208 delete chargeQT1;
dc7ca31d 209}
210
211
c41ceaac 212//_______________________________________________________________________
213
214void AliT0Reconstructor::Reconstruct(AliRawReader* rawReader, TTree*recTree) const
215{
94c27e4f 216 // T0 raw ->
217 // T0RecPoint writing
218
219 //Q->T-> coefficients !!!! should be measured!!!
220 Float_t time0vertex[24];
5325480c 221 Int_t allData[110][5];
94c27e4f 222 TObjArray slewingLEDrec;
c41ceaac 223 TObjArray walk;
94c27e4f 224
c41ceaac 225 TArrayI * timeCFD = new TArrayI(24);
226 TArrayI * timeLED = new TArrayI(24);
227 TArrayI * chargeQT0 = new TArrayI(24);
228 TArrayI * chargeQT1 = new TArrayI(24);
229
5325480c 230 for (Int_t i=0; i<110; i++) {
231 allData[i][0]=0;
232 }
233
c41ceaac 234 AliT0RawReader myrawreader(rawReader);
235 if (!myrawreader.Next())
236 AliDebug(1,Form(" no raw data found!! %i", myrawreader.Next()));
c41ceaac 237 for (Int_t i=0; i<110; i++) {
238 allData[i][0]=myrawreader.GetData(i,0);
239 }
240
241 AliT0Parameters* param = AliT0Parameters::Instance();
242 param->Init();
243 AliT0Calibrator *calib=new AliT0Calibrator();
244
245 Int_t mV2Mip = param->GetmV2Mip();
246 //mV2Mip = param->GetmV2Mip();
247 Int_t channelWidth = param->GetChannelWidth() ;
94c27e4f 248 Int_t meanT0 = param->GetMeanT0();
c41ceaac 249
250 for (Int_t i=0; i<24; i++){
251 TGraph* gr = param ->GetSlewRec(i);
252 slewingLEDrec.AddAtAndExpand(gr,i) ;
94c27e4f 253 time0vertex[i]= param->GetTimeDelayDA(i);
c41ceaac 254 }
255
5325480c 256
257 for (Int_t in=0; in<24; in++)
c41ceaac 258 {
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)));
264 }
265
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;
271
272
273 AliT0RecPoint* frecpoints= new AliT0RecPoint ();
274
275 recTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1);
276
277
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));
94c27e4f 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;
c41ceaac 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);
291 }
292 else {
293 time[ipmt] = 0;
294 adc[ipmt] = 0;
295 }
296 }
297
298 for (Int_t ipmt=0; ipmt<12; ipmt++){
299 if(time[ipmt] > 1 ) {
300 if(time[ipmt]<besttimeC){
301 besttimeC=time[ipmt]; //timeC
302 pmtBestC=ipmt;
303 }
304 }
305 }
306 for ( Int_t ipmt=12; ipmt<24; ipmt++){
307 if(time[ipmt] > 1) {
308 if(time[ipmt]<besttimeA) {
309 besttimeA=time[ipmt]; //timeA
310 pmtBestA=ipmt;}
311 }
312 }
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
317 Float_t vertex = 0;
318 if(besttimeA !=999999 && besttimeC != 999999 ){
94c27e4f 319 timeDiff = (besttimeC - besttimeA)*channelWidth;
320 // meanTime = (besttimeA + besttimeC)/2.;
321 meanTime = (meanT0 - (besttimeA + besttimeC)/2) * channelWidth;
c41ceaac 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));
326
327 }
94c27e4f 328 //time in each channel as time[ipmt]-MeanTimeinThisChannel(with vertex=0)
329 for (Int_t ipmt=0; ipmt<24; ipmt++) {
330 if(time[ipmt]>1) {
331 time[ipmt] = (time[ipmt] - time0vertex[ipmt])*channelWidth;
332 frecpoints->SetTime(ipmt,time[ipmt]);
333 }
334 }
c41ceaac 335 recTree->Fill();
94c27e4f 336
bd375212 337
338 delete timeCFD;
339 delete timeLED;
340 delete chargeQT0;
341 delete chargeQT1;
342
c41ceaac 343}
344//____________________________________________________________
345
dc7ca31d 346void AliT0Reconstructor::FillESD(AliRunLoader* runLoader, AliESD *pESD) const
347{
348
349 /***************************************************
350 Resonstruct digits to vertex position
351 ****************************************************/
352
353
354 if (!runLoader) {
355 AliError("Reconstruct >> No run loader");
356 return;
357 }
358
359 AliDebug(1,Form("Start FillESD T0"));
360
361 AliT0Loader* pStartLoader = (AliT0Loader*) runLoader->GetLoader("T0Loader");
362
363 pStartLoader->LoadRecPoints("READ");
364
365 TTree *treeR = pStartLoader->TreeR();
366
367 AliT0RecPoint* frecpoints= new AliT0RecPoint ();
368 if (!frecpoints) {
369 AliError("Reconstruct Fill ESD >> no recpoints found");
370 return;
371 }
372
373 AliDebug(1,Form("Start FillESD T0"));
374 TBranch *brRec = treeR->GetBranch("T0");
375 if (brRec) {
376 brRec->SetAddress(&frecpoints);
377 }else{
378 cerr<<"EXEC Branch T0 rec not found"<<endl;
379 // exit(111);
380 return;
381 }
382
383 brRec->GetEntry(0);
384 Float_t timeStart, Zposition, amp[24], time[24];
385 Int_t i;
386 Zposition = frecpoints -> GetVertex();
94c27e4f 387 timeStart = frecpoints -> GetMeanTime() ;
dc7ca31d 388 for ( i=0; i<24; i++) {
94c27e4f 389 time[i] = Float_t (frecpoints -> GetTime(i)); // ps to ns
dc7ca31d 390 amp[i] = frecpoints -> GetAmp(i);
391 }
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
5325480c 396
397 AliDebug(1,Form(" Z position %f cm, T0 %f ps",Zposition , timeStart));
dc7ca31d 398
399 pStartLoader->UnloadRecPoints();
400
401} // vertex in 3 sigma
402
403
404
405
406
407