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1 | ||
2 | /************************************************************************** | |
3 | * Copyright(c) 1998-2000, ALICE Experiment at CERN, All rights reserved. * | |
4 | * * | |
5 | * Author: The ALICE Off-line Project. * | |
6 | * Contributors are mentioned in the code where appropriate. * | |
7 | * * | |
8 | * Permission to use, copy, modify and distribute this software and its * | |
9 | * documentation strictly for non-commercial purposes is hereby granted * | |
10 | * without fee, provided that the above copyright notice appears in all * | |
11 | * copies and that both the copyright notice and this permission notice * | |
12 | * appear in the supporting documentation. The authors make no claims * | |
13 | * about the suitability of this software for any purpose. It is * | |
14 | * provided "as is" without express or implied warranty. * | |
15 | **************************************************************************/ | |
16 | ||
17 | ||
18 | #include <TTree.h> | |
19 | #include <TVector.h> | |
20 | #include <TObjArray.h> | |
21 | #include <TFile.h> | |
22 | #include <TDirectory.h> | |
23 | #include <TRandom.h> | |
24 | #include <TArrayI.h> | |
25 | #include <TH1.h> | |
26 | ||
27 | ||
28 | #include "AliSTARTDigitizer.h" | |
29 | #include "AliSTART.h" | |
30 | #include "AliSTARThit.h" | |
31 | #include "AliSTARThitPhoton.h" | |
32 | #include "AliSTARTdigit.h" | |
33 | #include "AliRunDigitizer.h" | |
34 | #include "AliHeader.h" | |
35 | #include "AliGenEventHeader.h" | |
36 | #include "AliRun.h" | |
37 | #include "AliPDG.h" | |
38 | ||
39 | #include <stdlib.h> | |
40 | #include <iostream.h> | |
41 | #include <fstream.h> | |
42 | ||
43 | ClassImp(AliSTARTDigitizer) | |
44 | ||
45 | //___________________________________________ | |
46 | AliSTARTDigitizer::AliSTARTDigitizer() :AliDigitizer() | |
47 | { | |
48 | // Default ctor - don't use it | |
49 | ; | |
50 | } | |
51 | ||
52 | //___________________________________________ | |
53 | AliSTARTDigitizer::AliSTARTDigitizer(AliRunDigitizer* manager) | |
54 | :AliDigitizer(manager) | |
55 | { | |
56 | cout<<"AliSTARTDigitizer::AliSTARTDigitizer"<<endl; | |
57 | // ctor which should be used | |
58 | // fDebug =0; | |
59 | // if (GetDebug()>2) | |
60 | // cerr<<"AliSTARTDigitizer::AliSTARTDigitizer" | |
61 | // <<"(AliRunDigitizer* manager) was processed"<<endl; | |
62 | ||
63 | } | |
64 | ||
65 | //------------------------------------------------------------------------ | |
66 | AliSTARTDigitizer::~AliSTARTDigitizer() | |
67 | { | |
68 | // Destructor | |
69 | ||
70 | ||
71 | } | |
72 | ||
73 | //------------------------------------------------------------------------ | |
74 | Bool_t AliSTARTDigitizer::Init() | |
75 | { | |
76 | // Initialization | |
77 | cout<<"AliSTARTDigitizer::Init"<<endl; | |
78 | return kTRUE; | |
79 | } | |
80 | ||
81 | ||
82 | //--------------------------------------------------------------------- | |
83 | ||
84 | void AliSTARTDigitizer::Exec(Option_t* option) | |
85 | { | |
86 | ||
87 | cout<<" AliSTARTDigitizer::Exec"<<endl; | |
88 | #ifdef DEBUG | |
89 | cout<<"AliSTARTDigitizer::>SDigits2Digits start...\n"; | |
90 | #endif | |
91 | // | |
92 | // From hits to digits | |
93 | // | |
94 | Int_t hit, nhits; | |
95 | Int_t CountEr[13],CountEl[13]; //!!! | |
96 | Int_t volume,pmt,tr,tl,sumRight; | |
97 | char nameDigits[20]; | |
98 | Float_t timediff,timeav; | |
99 | Float_t besttimeright,besttimeleft,meanTime; | |
100 | Int_t bestRightADC,bestLeftADC; | |
101 | Float_t besttimeleftGaus, besttimerightGaus; | |
102 | Float_t timeright[13]={13*0}; | |
103 | Float_t timeleft[13]={13*0}; | |
104 | Float_t channelWidth=2.5; //ps | |
105 | Int_t channelWidthADC=1; //ps | |
106 | Int_t thresholdAmpl=10; | |
107 | ||
108 | ftimeRightTDC = new TArrayI(12); | |
109 | ftimeLeftTDC = new TArrayI(12); | |
110 | fRightADC = new TArrayI(12); | |
111 | fLeftADC = new TArrayI(12); | |
112 | ||
113 | ||
114 | fHits = new TClonesArray ("AliSTARThit", 1000); | |
115 | fPhotons = new TClonesArray ("AliSTARThitPhoton", 10000); //!!! | |
116 | AliSTART *START = (AliSTART*) gAlice->GetDetector("START"); | |
117 | ||
118 | AliSTARThit *startHit; | |
119 | AliSTARThitPhoton *startHitPhoton; //!!! | |
120 | TBranch *brHits=0; | |
121 | TBranch *brHitPhoton=0; | |
122 | fdigits= new AliSTARTdigit(); | |
123 | ||
124 | Int_t nFiles=fManager->GetNinputs(); | |
125 | for (Int_t inputFile=0; inputFile<nFiles; inputFile++) { | |
126 | ||
127 | ||
128 | ||
129 | besttimeright=9999.; | |
130 | besttimeleft=9999.; | |
131 | Int_t timeDiff=0; | |
132 | Int_t timeAv=0; | |
133 | sumRight=0; | |
134 | for (Int_t i0=0; i0<13; i0++) | |
135 | { | |
136 | timeright[i0]=0; timeleft[i0]=0; | |
137 | CountEr[i0]=0; CountEl[i0]=0; | |
138 | } | |
139 | TClonesArray *STARThits = START->Hits (); | |
140 | TClonesArray *STARThitsPhotons = START->Photons (); | |
141 | ||
142 | TTree *th = fManager->GetInputTreeH(inputFile); | |
143 | brHits = th->GetBranch("START"); | |
144 | brHitPhoton = th->GetBranch("STARThitPhoton"); | |
145 | if (brHits) { | |
146 | START->SetHitsAddressBranch(brHits,brHitPhoton); | |
147 | }else{ | |
148 | cerr<<"EXEC Branch START hit not found"<<endl; | |
149 | exit(111); | |
150 | } | |
151 | Int_t ntracks = (Int_t) th->GetEntries(); | |
152 | cout<<" ntracks "<<ntracks<<endl; | |
153 | if (ntracks<=0) return; | |
154 | // Start loop on tracks in the photon hits containers | |
155 | // for amplitude | |
156 | if(brHitPhoton) { | |
157 | for (Int_t track=0; track<ntracks;track++) { | |
158 | brHitPhoton -> GetEntry(track);; | |
159 | nhits = STARThitsPhotons->GetEntriesFast(); | |
160 | for (hit=0;hit<nhits;hit++) { | |
161 | startHitPhoton = (AliSTARThitPhoton*) | |
162 | STARThitsPhotons ->UncheckedAt(hit); | |
163 | pmt=startHitPhoton->fPmt; | |
164 | volume = startHitPhoton->fArray; | |
165 | if(RegisterPhotoE(startHitPhoton)) | |
166 | { | |
167 | if (volume == 1) CountEr[pmt]++; | |
168 | if (volume == 2) CountEl[pmt]++; | |
169 | } | |
170 | } //hit photons | |
171 | } //track photons | |
172 | } // was photons | |
173 | ||
174 | // Start loop on tracks in the hits containers | |
175 | for (Int_t track=0; track<ntracks;track++) { | |
176 | brHits->GetEntry(track); | |
177 | nhits = STARThits->GetEntriesFast(); | |
178 | for (hit=0;hit<nhits;hit++) { | |
179 | startHit = (AliSTARThit*) STARThits->UncheckedAt(hit); | |
180 | pmt=startHit->fPmt; | |
181 | volume = startHit->fVolume; | |
182 | if(volume==1){ | |
183 | timeright[pmt] = startHit->fTime; | |
184 | if(timeright[pmt]<besttimeright) | |
185 | //&&CountEr[pmt-1]>thresholdAmpl) | |
186 | { | |
187 | besttimeright=timeright[pmt]; | |
188 | } //timeright | |
189 | }//time for right shoulder | |
190 | if(volume==2){ | |
191 | timeleft[pmt] = startHit->fTime; | |
192 | if(timeleft[pmt]<besttimeleft) | |
193 | //&&CountEl[pmt-1]>thresholdAmpl) | |
194 | { | |
195 | besttimeleft=timeleft[pmt]; | |
196 | ||
197 | } //timeleftbest | |
198 | }//time for left shoulder | |
199 | } //hit loop | |
200 | } //track loop | |
201 | ||
202 | // z position | |
203 | cout<<" right time "<<besttimeright<< | |
204 | " right distance "<<besttimeright*30<<endl;; | |
205 | cout<<" left time "<<besttimeleft<< | |
206 | " right distance "<<besttimeleft*30<<endl;; | |
207 | ||
208 | ||
209 | //folding with experimental time distribution | |
210 | ||
211 | besttimerightGaus=gRandom->Gaus(besttimeright,0.05); | |
212 | // cout<<" besttimerightGaus "<<besttimerightGaus<<endl; | |
213 | bestRightADC=(Int_t) besttimerightGaus*1000/channelWidth; | |
214 | Float_t koef=69.7/350.; | |
215 | besttimeleft=koef*besttimeleft; | |
216 | besttimeleftGaus=gRandom->Gaus(besttimeleft,0.05); | |
217 | ||
218 | bestLeftADC=(Int_t) besttimeleftGaus*1000/channelWidth; | |
219 | timediff=besttimerightGaus-besttimeleftGaus; | |
220 | cout<<" timediff in ns "<<timediff<<" z= "<<timediff*30<<endl; | |
221 | meanTime=(besttimerightGaus+besttimeleftGaus)/2.; | |
222 | if ( TMath::Abs(timediff)<TMath::Abs(0.3) ) | |
223 | { | |
224 | Float_t t1=1000.*besttimeleftGaus; | |
225 | Float_t t2=1000.*besttimerightGaus; | |
226 | t1=t1/channelWidth; //time in ps to channelWidth | |
227 | t2=t2/channelWidth; //time in ps to channelWidth | |
228 | timeav=(t1+t2)/2.; | |
229 | ||
230 | // Time to TDC signal | |
231 | // 256 channels for timediff, range 1ns | |
232 | ||
233 | timediff=512+1000*timediff/channelWidth; // time in ps | |
234 | ||
235 | timeAv = (Int_t)(timeav); // time channel numbres | |
236 | timeDiff = (Int_t)(timediff); // time channel numbres | |
237 | // fill digits | |
238 | fdigits->SetTimeBestLeft(bestLeftADC); | |
239 | fdigits->SetTimeBestRight(bestRightADC); | |
240 | fdigits->SetMeanTime(timeAv); | |
241 | fdigits->SetTimeDiff(timeDiff); | |
242 | for (Int_t i=0; i<12; i++) | |
243 | { | |
244 | // fill TDC | |
245 | timeright[i+1]=gRandom->Gaus(timeright[i+1],0.05); | |
246 | timeleft[i+1]=gRandom->Gaus(timeleft[i+1],0.05); | |
247 | tr= Int_t (timeright[i+1]*1000/channelWidth); | |
248 | if(tr<200) tr=0; | |
249 | tl= Int_t (timeleft[i+1]*1000/channelWidth); | |
250 | if(tl<1000) tl=0; | |
251 | ||
252 | ftimeRightTDC->AddAt(tr,i); | |
253 | ftimeLeftTDC->AddAt(tl,i); | |
254 | //fill ADC | |
255 | Int_t al=( Int_t ) CountEl[i+1]/ channelWidthADC; | |
256 | Int_t ar=( Int_t ) CountEr[i+1]/ channelWidthADC; | |
257 | fRightADC->AddAt(ar,i); | |
258 | fLeftADC ->AddAt(al,i); | |
259 | sumRight+=CountEr[i+1]; | |
260 | } | |
261 | fdigits->SetTimeRight(*ftimeRightTDC); | |
262 | fdigits->SetTimeLeft(*ftimeLeftTDC); | |
263 | fdigits->SetADCRight(*fRightADC); | |
264 | fdigits->SetADCLeft(*fLeftADC); | |
265 | // cout<<" before sum"<<endl; | |
266 | fdigits->SetSumADCRight(sumRight); | |
267 | } | |
268 | else | |
269 | {timeAv=999999; timeDiff=99999;} | |
270 | ||
271 | // trick to find out output dir: | |
272 | TTree *outTree = fManager->GetTreeD(); | |
273 | if (!outTree) { | |
274 | cerr<<"something wrong with output...."<<endl; | |
275 | exit(111); | |
276 | } | |
277 | ||
278 | TDirectory *wd = gDirectory; | |
279 | outTree->GetDirectory()->cd(); | |
280 | sprintf(nameDigits,"START_D_%d",fManager->GetOutputEventNr()); | |
281 | fdigits->Write(nameDigits); | |
282 | cout<<nameDigits<<endl; | |
283 | wd->cd(); | |
284 | } | |
285 | } | |
286 | ||
287 | ||
288 | //------------------------------------------------------------------------ | |
289 | Bool_t AliSTARTDigitizer::RegisterPhotoE(AliSTARThitPhoton *hit) | |
290 | { | |
291 | Double_t P = 0.2; | |
292 | Double_t p; | |
293 | ||
294 | p = gRandom->Rndm(); | |
295 | if (p > P) | |
296 | return kFALSE; | |
297 | ||
298 | return kTRUE; | |
299 | } |