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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 | /* $Id$ */ | |
17 | ||
18 | #include <Riostream.h> | |
19 | ||
20 | #include <TDirectory.h> | |
21 | ||
22 | #include "AliRunLoader.h" | |
23 | #include "AliRun.h" | |
24 | #include <AliESD.h> | |
25 | #include "AliLog.h" | |
26 | #include <TClonesArray.h> | |
27 | #include "AliT0RecPoint.h" | |
e0bba6cc | 28 | #include "AliT0.h" |
dc7ca31d | 29 | #include "AliRawReader.h" |
30 | #include "AliT0RawReader.h" | |
31 | #include "AliT0Loader.h" | |
32 | #include "AliT0digit.h" | |
33 | #include "AliT0Reconstructor.h" | |
34 | #include "AliT0Parameters.h" | |
35 | #include "AliCDBLocal.h" | |
36 | #include "AliCDBStorage.h" | |
37 | #include "AliCDBManager.h" | |
38 | #include "AliCDBEntry.h" | |
39 | ||
40 | #include <TArrayI.h> | |
41 | #include <TGraph.h> | |
42 | ||
43 | ClassImp(AliT0Reconstructor) | |
44 | ||
e0bba6cc | 45 | //____________________________________________________________________ |
46 | void | |
47 | AliT0Reconstructor::Init(AliRunLoader* runLoader,TTree* digitsTree ) const | |
48 | { | |
49 | ||
50 | // Initialize the reconstructor | |
51 | AliDebug(2, Form("Init called with runloader 0x%x", runLoader)); | |
52 | ||
53 | // Initialize the parameters | |
54 | AliT0Loader* pStartLoader = (AliT0Loader*) runLoader->GetLoader("T0Loader"); | |
55 | ||
56 | pStartLoader->LoadDigits("READ"); | |
57 | ||
58 | digitsTree = pStartLoader->TreeD(); | |
59 | ||
60 | } | |
61 | ||
62 | //____________________________________________________________________ | |
dc7ca31d | 63 | void AliT0Reconstructor::ConvertDigits(AliRawReader* rawReader, TTree* digitsTree) const |
64 | { | |
65 | //T0 raw data-> digits conversion | |
66 | // reconstruct time information from raw data | |
e0bba6cc | 67 | AliT0 *baseT0; |
68 | baseT0->Raw2Digits(rawReader, digitsTree); | |
69 | ||
70 | ||
dc7ca31d | 71 | } |
72 | void AliT0Reconstructor::Reconstruct(TTree*digitsTree, TTree*clustersTree) const | |
e0bba6cc | 73 | //void AliT0Reconstructor::Reconstruct(AliRunLoader *runLoader) const |
dc7ca31d | 74 | { |
75 | // T0 digits reconstruction | |
76 | // T0RecPoint writing | |
77 | ||
78 | //Q->T-> coefficients !!!! should be asked!!! | |
79 | // Float_t ph2MIP=500; | |
80 | Float_t gain[24], timeDelayCFD[24], timeDelayLED[24]; | |
81 | Float_t zdetA,zdetC; | |
82 | TObjArray slewingLED; | |
83 | ||
84 | TArrayI * fADC = new TArrayI(24); | |
85 | TArrayI * fTimeCFD = new TArrayI(24); | |
86 | TArrayI * fADCLED = new TArrayI(24); | |
87 | TArrayI * fTimeLED = new TArrayI(24); | |
88 | ||
89 | AliT0Parameters* param = AliT0Parameters::Instance(); | |
90 | param->Init(); | |
91 | ||
92 | Int_t mV2Mip = param->GetmV2Mip(); | |
93 | //mV2Mip = param->GetmV2Mip(); | |
94 | Int_t channelWidth = param->GetChannelWidth() ; | |
95 | ||
96 | for (Int_t i=0; i<24; i++){ | |
97 | timeDelayCFD[i] = param->GetTimeDelayCFD(i); | |
98 | timeDelayLED[i] = param->GetTimeDelayLED(i); | |
99 | gain[i] = param->GetGain(i); | |
100 | //gain[i] = 1; | |
101 | slewingLED.AddAtAndExpand(param->GetSlew(i),i); | |
102 | } | |
103 | zdetC = param->GetZposition(0); | |
104 | zdetA = param->GetZposition(1); | |
105 | ||
106 | AliDebug(1,Form("Start DIGITS reconstruction ")); | |
e0bba6cc | 107 | |
dc7ca31d | 108 | TBranch *brDigits=digitsTree->GetBranch("T0"); |
e0bba6cc | 109 | AliT0digit *fDigits = new AliT0digit() ; |
dc7ca31d | 110 | if (brDigits) { |
111 | brDigits->SetAddress(&fDigits); | |
112 | }else{ | |
113 | cerr<<"EXEC Branch T0 digits not found"<<endl; | |
114 | return; | |
115 | } | |
e0bba6cc | 116 | |
117 | digitsTree->GetEvent(0); | |
118 | digitsTree->GetEntry(0); | |
119 | brDigits->GetEntry(0); | |
dc7ca31d | 120 | fDigits->GetTime(*fTimeCFD); |
121 | fDigits->GetADC(*fADC); | |
122 | fDigits->GetTimeAmp(*fTimeLED); | |
123 | fDigits->GetADCAmp(*fADCLED); | |
124 | ||
e0bba6cc | 125 | |
dc7ca31d | 126 | Float_t besttimeright=999999; |
127 | Float_t besttimeleft=999999; | |
128 | Int_t pmtBestRight=99999; | |
129 | Int_t pmtBestLeft=99999; | |
130 | Float_t timeDiff=999999, meanTime=0; | |
131 | ||
e0bba6cc | 132 | |
133 | ||
134 | AliT0RecPoint* frecpoints= new AliT0RecPoint (); | |
135 | clustersTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints, 405,1); | |
dc7ca31d | 136 | |
137 | Float_t time[24], adc[24]; | |
138 | for (Int_t ipmt=0; ipmt<24; ipmt++) { | |
dc7ca31d | 139 | if(fTimeCFD->At(ipmt)>0 ){ |
140 | time[ipmt] = channelWidth *( fTimeCFD->At(ipmt)) - 1000*timeDelayCFD[ipmt]; | |
e0bba6cc | 141 | // Float_t adc_digPs = channelWidth * Float_t (fADCLED->At(ipmt)) ; |
142 | // adc[ipmt] = TMath::Exp(adc_digPs/1000) /gain[ipmt]; | |
143 | adc[ipmt]=1; | |
dc7ca31d | 144 | AliDebug(1,Form(" time %f ps, adc %f mv in MIP %i\n ", |
145 | time[ipmt], adc[ipmt], Int_t (adc[ipmt]/mV2Mip +0.5))); | |
146 | frecpoints->SetTime(ipmt,time[ipmt]); | |
147 | frecpoints->SetAmp(ipmt,adc[ipmt]); | |
148 | } | |
149 | else { | |
150 | time[ipmt] = 0; | |
151 | adc[ipmt] = 0; | |
152 | } | |
153 | } | |
e0bba6cc | 154 | |
dc7ca31d | 155 | for (Int_t ipmt=0; ipmt<12; ipmt++){ |
156 | if(time[ipmt] > 1 ) { | |
157 | if(time[ipmt]<besttimeleft){ | |
158 | besttimeleft=time[ipmt]; //timeleft | |
159 | pmtBestLeft=ipmt; | |
160 | } | |
161 | } | |
162 | } | |
163 | for ( Int_t ipmt=12; ipmt<24; ipmt++){ | |
164 | if(time[ipmt] > 1) { | |
165 | if(time[ipmt]<besttimeright) { | |
166 | besttimeright=time[ipmt]; //timeright | |
167 | pmtBestRight=ipmt;} | |
168 | } | |
169 | } | |
170 | if(besttimeright !=999999) frecpoints->SetTimeBestRight(Int_t(besttimeright)); | |
171 | if( besttimeleft != 999999 ) frecpoints->SetTimeBestLeft(Int_t(besttimeleft)); | |
172 | AliDebug(1,Form(" besttimeA %f ps, besttimeC %f ps",besttimeright, besttimeleft)); | |
173 | Float_t c = 0.0299792; // cm/ps | |
174 | Float_t vertex = 0; | |
175 | if(besttimeright !=999999 && besttimeleft != 999999 ){ | |
176 | timeDiff = besttimeleft - besttimeright; | |
177 | meanTime = (besttimeright + besttimeleft)/2.; | |
178 | vertex = c*(timeDiff)/2.; //-(lenr-lenl))/2; | |
179 | AliDebug(1,Form(" timeDiff %f ps, meanTime %f ps, vertex %f cm",timeDiff, meanTime,vertex )); | |
180 | frecpoints->SetVertex(vertex); | |
181 | frecpoints->SetMeanTime(Int_t(meanTime)); | |
182 | ||
183 | } | |
184 | clustersTree->Fill(); | |
185 | } | |
186 | ||
187 | ||
188 | void AliT0Reconstructor::FillESD(AliRunLoader* runLoader, AliESD *pESD) const | |
189 | { | |
190 | ||
191 | /*************************************************** | |
192 | Resonstruct digits to vertex position | |
193 | ****************************************************/ | |
194 | ||
195 | ||
196 | if (!runLoader) { | |
197 | AliError("Reconstruct >> No run loader"); | |
198 | return; | |
199 | } | |
200 | ||
201 | AliDebug(1,Form("Start FillESD T0")); | |
202 | ||
203 | AliT0Loader* pStartLoader = (AliT0Loader*) runLoader->GetLoader("T0Loader"); | |
204 | ||
205 | pStartLoader->LoadRecPoints("READ"); | |
206 | ||
207 | TTree *treeR = pStartLoader->TreeR(); | |
208 | ||
209 | AliT0RecPoint* frecpoints= new AliT0RecPoint (); | |
210 | if (!frecpoints) { | |
211 | AliError("Reconstruct Fill ESD >> no recpoints found"); | |
212 | return; | |
213 | } | |
214 | ||
215 | AliDebug(1,Form("Start FillESD T0")); | |
216 | TBranch *brRec = treeR->GetBranch("T0"); | |
217 | if (brRec) { | |
218 | brRec->SetAddress(&frecpoints); | |
219 | }else{ | |
220 | cerr<<"EXEC Branch T0 rec not found"<<endl; | |
221 | // exit(111); | |
222 | return; | |
223 | } | |
224 | ||
225 | brRec->GetEntry(0); | |
226 | Float_t timeStart, Zposition, amp[24], time[24]; | |
227 | Int_t i; | |
228 | Zposition = frecpoints -> GetVertex(); | |
229 | timeStart = frecpoints -> GetMeanTime(); | |
230 | for ( i=0; i<24; i++) { | |
231 | time[i] = Float_t (frecpoints -> GetTime(i)) / 1000.; // ps to ns | |
232 | amp[i] = frecpoints -> GetAmp(i); | |
233 | } | |
234 | pESD->SetT0zVertex(Zposition); //vertex Z position | |
235 | pESD->SetT0(timeStart); // interaction time | |
236 | pESD->SetT0time(time); // best TOF on each PMT | |
237 | pESD->SetT0amplitude(amp); // number of particles(MIPs) on each PMT | |
238 | cout<<" ESD >> "<<Zposition<<" "<<timeStart<<endl; | |
239 | ||
240 | pStartLoader->UnloadRecPoints(); | |
241 | ||
242 | } // vertex in 3 sigma | |
243 | ||
244 | ||
245 | ||
246 | ||
247 | ||
248 |