Addtional protection (Chiara)
[u/mrichter/AliRoot.git] / T0 / AliT0Reconstructor.cxx
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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>
2e6a5ee0 37#include <iostream.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(),
47 fCalib()
e0bba6cc 48{
72e48d95 49 //constructor
50
c41ceaac 51 AliDebug(1,"Start reconstructor ");
74adb36a 52
53 fParam = AliT0Parameters::Instance();
54 fParam->Init();
29ed1d0e 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) ;
59}
60
f16935f7 61 fdZonC = TMath::Abs(fParam->GetZPositionShift("T0/C/PMT1"));
62 fdZonA = TMath::Abs(fParam->GetZPositionShift("T0/A/PMT15"));
12e9daf9 63 fCalib = new AliT0Calibrator();
64
c41ceaac 65}
66//____________________________________________________________________
e0bba6cc 67
c41ceaac 68AliT0Reconstructor::AliT0Reconstructor(const AliT0Reconstructor &r):
d76c31f4 69 AliReconstructor(r),
f16935f7 70 fdZonA(0),
71 fdZonC(0),
72 fZposition(0),
73 fParam(NULL),
2e6a5ee0 74 fAmpLEDrec(),
75 fCalib()
76
f16935f7 77 {
c41ceaac 78 //
79 // AliT0Reconstructor copy constructor
80 //
e0bba6cc 81
c41ceaac 82 ((AliT0Reconstructor &) r).Copy(*this);
e0bba6cc 83
84}
85
c41ceaac 86//_____________________________________________________________________________
87AliT0Reconstructor &AliT0Reconstructor::operator=(const AliT0Reconstructor &r)
dc7ca31d 88{
c41ceaac 89 //
90 // Assignment operator
91 //
92
93 if (this != &r) ((AliT0Reconstructor &) r).Copy(*this);
94 return *this;
e0bba6cc 95
dc7ca31d 96}
c41ceaac 97
98//_____________________________________________________________________________
99
dc7ca31d 100void AliT0Reconstructor::Reconstruct(TTree*digitsTree, TTree*clustersTree) const
94c27e4f 101
dc7ca31d 102{
94c27e4f 103 // T0 digits reconstruction
104 // T0RecPoint writing
c41ceaac 105
74adb36a 106
c41ceaac 107 TArrayI * timeCFD = new TArrayI(24);
108 TArrayI * timeLED = new TArrayI(24);
109 TArrayI * chargeQT0 = new TArrayI(24);
110 TArrayI * chargeQT1 = new TArrayI(24);
74adb36a 111
dc7ca31d 112
94c27e4f 113 // Int_t mV2Mip = param->GetmV2Mip();
dc7ca31d 114 //mV2Mip = param->GetmV2Mip();
8955c6b4 115 Float_t channelWidth = fParam->GetChannelWidth() ;
12e9daf9 116 // Int_t meanT0 = fParam->GetMeanT0();
94c27e4f 117
dc7ca31d 118 AliDebug(1,Form("Start DIGITS reconstruction "));
94c27e4f 119
2e6a5ee0 120
121 TBranch *brDigits=digitsTree->GetBranch("T0");
e0bba6cc 122 AliT0digit *fDigits = new AliT0digit() ;
dc7ca31d 123 if (brDigits) {
124 brDigits->SetAddress(&fDigits);
125 }else{
f16935f7 126 AliError(Form("EXEC Branch T0 digits not found"));
127 return;
dc7ca31d 128 }
e0bba6cc 129
c41ceaac 130 digitsTree->GetEvent(0);
131 digitsTree->GetEntry(0);
132 brDigits->GetEntry(0);
133 fDigits->GetTimeCFD(*timeCFD);
134 fDigits->GetTimeLED(*timeLED);
135 fDigits->GetQT0(*chargeQT0);
136 fDigits->GetQT1(*chargeQT1);
446d6ec4 137 Int_t onlineMean = fDigits->MeanTime();
138 cout<<" !!!! onlineMean "<<onlineMean<<endl;
c41ceaac 139
140 Float_t besttimeA=999999;
141 Float_t besttimeC=999999;
142 Int_t pmtBestA=99999;
143 Int_t pmtBestC=99999;
dc7ca31d 144 Float_t timeDiff=999999, meanTime=0;
145
e0bba6cc 146
94c27e4f 147 AliT0RecPoint* frecpoints= new AliT0RecPoint ();
148 clustersTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1);
149
12e9daf9 150 Float_t time[24], adc[24];
dc7ca31d 151 for (Int_t ipmt=0; ipmt<24; ipmt++) {
c41ceaac 152 if(timeCFD->At(ipmt)>0 ){
29d3e0eb 153 Double_t qt0 = Double_t(chargeQT0->At(ipmt));
154 Double_t qt1 = Double_t(chargeQT1->At(ipmt));
12e9daf9 155 if((qt1-qt0)>0) adc[ipmt] = Int_t (TMath::Exp( Double_t (channelWidth*(qt1-qt0)/1000)));
156
2e6a5ee0 157 time[ipmt] = fCalib-> WalkCorrection( ipmt, Int_t(qt1) , timeCFD->At(ipmt), "pdc" ) ;
c41ceaac 158
159 //LED
29d3e0eb 160 Double_t sl = (timeLED->At(ipmt) - time[ipmt])*channelWidth;
74adb36a 161 Double_t qt=((TGraph*)fAmpLEDrec.At(ipmt))->Eval(sl/1000.);
12e9daf9 162 AliDebug(1,Form(" ipmt %i QTC %i , time in chann %i (led-cfd) %i ",
163 ipmt, Int_t(adc[ipmt]) ,Int_t(time[ipmt]),Int_t( sl)));
164 frecpoints->SetTime(ipmt,Int_t(time[ipmt]));
165 frecpoints->SetAmp(ipmt,Int_t (adc[ipmt]));
c41ceaac 166 frecpoints->SetAmpLED(ipmt,qt);
dc7ca31d 167 }
168 else {
169 time[ipmt] = 0;
170 adc[ipmt] = 0;
171 }
172 }
94c27e4f 173
dc7ca31d 174 for (Int_t ipmt=0; ipmt<12; ipmt++){
175 if(time[ipmt] > 1 ) {
c41ceaac 176 if(time[ipmt]<besttimeC){
177 besttimeC=time[ipmt]; //timeC
178 pmtBestC=ipmt;
dc7ca31d 179 }
180 }
181 }
182 for ( Int_t ipmt=12; ipmt<24; ipmt++){
183 if(time[ipmt] > 1) {
c41ceaac 184 if(time[ipmt]<besttimeA) {
185 besttimeA=time[ipmt]; //timeA
186 pmtBestA=ipmt;}
dc7ca31d 187 }
188 }
c41ceaac 189 if(besttimeA !=999999) frecpoints->SetTimeBestA(Int_t(besttimeA));
190 if( besttimeC != 999999 ) frecpoints->SetTimeBestC(Int_t(besttimeC));
12e9daf9 191 AliDebug(1,Form(" besttimeA %f ch, besttimeC %f ch",besttimeA, besttimeC));
dc7ca31d 192 Float_t c = 0.0299792; // cm/ps
193 Float_t vertex = 0;
c41ceaac 194 if(besttimeA !=999999 && besttimeC != 999999 ){
12e9daf9 195 timeDiff = (besttimeC - besttimeA)*channelWidth;
446d6ec4 196 meanTime = (Float_t((besttimeA + besttimeC -4000)/2) * channelWidth);
12e9daf9 197 // meanTime = (meanT0 - (besttimeA + besttimeC)/2) * channelWidth;
f16935f7 198 vertex = c*(timeDiff)/2. + (fdZonA - fdZonC)/2; //-(lenr-lenl))/2;
dc7ca31d 199 frecpoints->SetVertex(vertex);
200 frecpoints->SetMeanTime(Int_t(meanTime));
446d6ec4 201 //online mean
202 frecpoints->SetOnlineMean(Int_t(onlineMean * channelWidth));
203 AliDebug(1,Form(" timeDiff %f ps, meanTime %f ps, vertex %f cm online mean %i ps",timeDiff, meanTime,vertex, Int_t(onlineMean * channelWidth )));
dc7ca31d 204
205 }
446d6ec4 206
94c27e4f 207 //time in each channel as time[ipmt]-MeanTimeinThisChannel(with vertex=0)
446d6ec4 208 /*
94c27e4f 209 for (Int_t ipmt=0; ipmt<24; ipmt++) {
210 if(time[ipmt]>1) {
446d6ec4 211 // time[ipmt] = (time[ipmt] - fTime0vertex[ipmt])*channelWidth;
12e9daf9 212 time[ipmt] =Int_t ( Float_t(time[ipmt]) * channelWidth);
94c27e4f 213 frecpoints->SetTime(ipmt,time[ipmt]);
214 }
215 }
446d6ec4 216*/
dc7ca31d 217 clustersTree->Fill();
bd375212 218
219 delete timeCFD;
220 delete timeLED;
221 delete chargeQT0;
222 delete chargeQT1;
dc7ca31d 223}
224
225
c41ceaac 226//_______________________________________________________________________
227
228void AliT0Reconstructor::Reconstruct(AliRawReader* rawReader, TTree*recTree) const
229{
94c27e4f 230 // T0 raw ->
231 // T0RecPoint writing
232
233 //Q->T-> coefficients !!!! should be measured!!!
e8ed1cd0 234 Int_t allData[110][5];
2e6a5ee0 235
e8ed1cd0 236 Int_t timeCFD[24], timeLED[24], chargeQT0[24], chargeQT1[24];
aaa0a98f 237 TString option = GetOption();
2e6a5ee0 238 AliDebug(10,Form("Option: %s\n", option.Data()));
239
240 for (Int_t i0=0; i0<105; i0++)
241 {
242 for (Int_t j0=0; j0<5; j0++) allData[i0][j0]=0;
243 }
244
12e9daf9 245 Float_t besttimeA=9999999;
246 Float_t besttimeC=9999999;
2e6a5ee0 247 Int_t pmtBestA=99999;
248 Int_t pmtBestC=99999;
12e9daf9 249 Float_t timeDiff=9999999, meanTime=0;
2e6a5ee0 250 Double_t qt=0;
251
252 AliT0RecPoint* frecpoints= new AliT0RecPoint ();
253
254 recTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1);
255
256
257 AliDebug(10," before read data ");
258 AliT0RawReader myrawreader(rawReader);
259 if (!myrawreader.Next())
260 AliDebug(1,Form(" no raw data found!!"));
261 else
262 {
263 for (Int_t i=0; i<105; i++) {
264 for (Int_t iHit=0; iHit<5; iHit++)
265 {
266 allData[i][iHit] = myrawreader.GetData(i,iHit);
267 }
268 }
269
270 Float_t channelWidth = fParam->GetChannelWidth() ;
271
12e9daf9 272 // Int_t meanT0 = fParam->GetMeanT0();
2e6a5ee0 273 if(option == "pdc"){
274 for (Int_t in=0; in<24; in++)
275 {
276
277 timeLED[in] = allData[in+1][0] ;
278 timeCFD[in] = allData[in+25][0] ;
279 chargeQT1[in] = allData[in+57][0] ;
280 chargeQT0[in] = allData[in+80][0] ;
281 }
282 }
283
284 if(option == "cosmic") {
285 for (Int_t in=0; in<12; in++)
286 {
287 timeCFD[in] = allData[in+1][0] ;
288 timeCFD[in+12] = allData[in+56+1][0] ;
289 timeLED[in] = allData[in+12+1][0] ;
290 timeLED[in+12] = allData[in+68+1][0] ;
291 }
292
293 for (Int_t in=0; in<24; in=in+2)
294 {
295 Int_t cc=in/2;
296 chargeQT1[cc]=allData[in+25][0];
297 chargeQT0[cc]=allData[in+26][0];
298 }
299 for (Int_t in=24; in<48; in=in+2)
300 {
301 Int_t cc=in/2;
302 chargeQT1[cc]=allData[in+57][0];
303 chargeQT0[cc]=allData[in+58][0];
304 }
305
306 }
307 for (Int_t in=0; in<24; in++)
308 AliDebug(10, Form(" readed Raw %i %i %i %i %i", in, timeLED[in],timeCFD[in],chargeQT0[in],chargeQT1[in]));
446d6ec4 309 Int_t onlineMean = allData[49][0];
2e6a5ee0 310
12e9daf9 311 Float_t time[24], adc[24];
2e6a5ee0 312 for (Int_t ipmt=0; ipmt<24; ipmt++) {
313 if(timeCFD[ipmt]>0 && timeLED[ipmt]>0){
314
315 if(option == "pdc"){
316 Double_t qt0 = Double_t(chargeQT0[ipmt]);
317 Double_t qt1 = Double_t(chargeQT1[ipmt]);
29ed1d0e 318 if((qt1-qt0)>0) adc[ipmt] = Int_t(TMath::Exp( Double_t (channelWidth*(qt1-qt0)/1000.)));
2e6a5ee0 319 time[ipmt] = fCalib-> WalkCorrection( ipmt,Int_t(qt1) , timeCFD[ipmt], "pdc" ) ;
320 Double_t sl = (timeLED[ipmt] - time[ipmt])*channelWidth;
321 if(fAmpLEDrec.At(ipmt))
322 qt=((TGraph*)fAmpLEDrec.At(ipmt))->Eval(sl/1000.);
12e9daf9 323 frecpoints->SetTime(ipmt,Int_t(time[ipmt]));
324 frecpoints->SetAmp(ipmt,Int_t(adc[ipmt]));
2e6a5ee0 325 frecpoints->SetAmpLED(ipmt,qt);
446d6ec4 326 AliDebug(10,Form(" QTC %f mv, time in chann %f ampLED %f",adc[ipmt] ,time[ipmt], qt));
2e6a5ee0 327 }
328 if(option == "cosmic") {
329 // if(ipmt == 15) continue; //skip crashed PMT
330 if(( chargeQT1[ipmt] - chargeQT0[ipmt])>0)
331 adc[ipmt] = chargeQT1[ipmt] - chargeQT0[ipmt];
332 else
333 adc[ipmt] = 0;
334 // time[ipmt] = fCalib-> WalkCorrection( ipmt, adc[ipmt], timeCFD[ipmt],"cosmic" ) ;
335 // time[ipmt] = timeCFD[ipmt] ;
336 Double_t sl = timeLED[ipmt] - timeCFD[ipmt];
337 time[ipmt] = fCalib-> WalkCorrection( ipmt, Int_t(sl), timeCFD[ipmt],"cosmic" ) ;
446d6ec4 338 if(fAmpLEDrec.At(ipmt))
339 qt=((TGraph*)fAmpLEDrec.At(ipmt))->Eval(sl);
2e6a5ee0 340 time[ipmt] = time[ipmt] - allData[0][0] + 5000;
446d6ec4 341 AliDebug(10,Form(" ipmt %i QTC %i , time in chann %i (led-cfd) %i ampLED %f",
342 ipmt, Int_t(adc[ipmt]) ,Int_t(time[ipmt]),Int_t( sl), qt));
2e6a5ee0 343 frecpoints->SetTime(ipmt, Float_t(time[ipmt]) );
344 frecpoints->SetAmp(ipmt, Float_t(adc[ipmt]));
345 frecpoints->SetAmpLED(ipmt, Float_t(qt));
346 }
347
348 }
349 else {
350 time[ipmt] = 0;
351 adc[ipmt] = 0;
352 }
353 }
354
355 for (Int_t ipmt=0; ipmt<12; ipmt++){
356 if(time[ipmt] > 1 ) {
357 if(time[ipmt]<besttimeC){
358 besttimeC=time[ipmt]; //timeC
359 pmtBestC=ipmt;
360 }
361 }
362 }
363 for ( Int_t ipmt=12; ipmt<24; ipmt++){
364 if(time[ipmt] > 1) {
365 if(time[ipmt]<besttimeA) {
366 besttimeA=time[ipmt]; //timeA
367 pmtBestA=ipmt;}
368 }
369 }
370 if(besttimeA !=9999999) frecpoints->SetTimeBestA(Int_t(besttimeA));
371 if( besttimeC != 9999999 ) frecpoints->SetTimeBestC(Int_t(besttimeC));
12e9daf9 372 AliDebug(1,Form(" besttimeA %f ps, besttimeC %f ps",besttimeA, besttimeC));
2e6a5ee0 373 Float_t c = 0.0299792; // cm/ps
374 Float_t vertex = 99999;
375 if(besttimeA <9999999 && besttimeC < 9999999 ){
12e9daf9 376 timeDiff = ( besttimeC - besttimeA) *channelWidth;
446d6ec4 377 if(option == "pdc"){
378 // meanTime = (besttimeA + besttimeC)/2 * channelWidth;
379 meanTime = (besttimeA + besttimeC-4000.)/2 * channelWidth;
380 onlineMean = Int_t (onlineMean * channelWidth);
381 }
382 if(option == "cosmic") {
12e9daf9 383 meanTime = Float_t((besttimeA + besttimeC)/2);
446d6ec4 384 onlineMean = onlineMean -allData[0][0];;
385 }
12e9daf9 386 vertex = c*(timeDiff)/2.+ (fdZonA - fdZonC)/2;
2e6a5ee0 387 frecpoints->SetVertex(vertex);
388 frecpoints->SetMeanTime(Int_t(meanTime));
446d6ec4 389 AliDebug(1,Form(" timeDiff %f ps, meanTime %f ps, vertex %f cm online mean %i ",timeDiff, meanTime,vertex, onlineMean));
2e6a5ee0 390
391 }
392 } // if (else )raw data
393 recTree->Fill();
394 if(frecpoints) delete frecpoints;
c41ceaac 395}
396//____________________________________________________________
397
d76c31f4 398void AliT0Reconstructor::FillESD(TTree */*digitsTree*/, TTree *clustersTree, AliESDEvent *pESD) const
dc7ca31d 399{
400
401 /***************************************************
402 Resonstruct digits to vertex position
403 ****************************************************/
404
dc7ca31d 405 AliDebug(1,Form("Start FillESD T0"));
406
d76c31f4 407 TTree *treeR = clustersTree;
dc7ca31d 408
409 AliT0RecPoint* frecpoints= new AliT0RecPoint ();
410 if (!frecpoints) {
411 AliError("Reconstruct Fill ESD >> no recpoints found");
412 return;
413 }
414
415 AliDebug(1,Form("Start FillESD T0"));
416 TBranch *brRec = treeR->GetBranch("T0");
417 if (brRec) {
418 brRec->SetAddress(&frecpoints);
419 }else{
f16935f7 420 AliError(Form("EXEC Branch T0 rec not found"));
dc7ca31d 421 return;
422 }
423
424 brRec->GetEntry(0);
f16935f7 425 Float_t amp[24], time[24];
426 Float_t zPosition = frecpoints -> GetVertex();
427 Float_t timeStart = frecpoints -> GetMeanTime() ;
428 for ( Int_t i=0; i<24; i++) {
94c27e4f 429 time[i] = Float_t (frecpoints -> GetTime(i)); // ps to ns
dc7ca31d 430 amp[i] = frecpoints -> GetAmp(i);
431 }
f16935f7 432 pESD->SetT0zVertex(zPosition); //vertex Z position
dc7ca31d 433 pESD->SetT0(timeStart); // interaction time
434 pESD->SetT0time(time); // best TOF on each PMT
435 pESD->SetT0amplitude(amp); // number of particles(MIPs) on each PMT
5325480c 436
f16935f7 437 AliDebug(1,Form(" Z position %f cm, T0 %f ps",zPosition , timeStart));
dc7ca31d 438
dc7ca31d 439} // vertex in 3 sigma
440
441
442
443
444
445