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dc7ca31d | 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 | ||
9edefa04 | 17 | /* $Id$ */ |
dc7ca31d | 18 | |
94249139 | 19 | /****************************************************************** |
20 | * Produde digits from hits | |
21 | * digits is TObject and includes | |
22 | * We are writing array if C & A TDC | |
23 | * C & A ADC (will need for slow simulation) | |
24 | * TOF first particle C & A | |
25 | * mean time and time difference (vertex position) | |
26 | * | |
27 | * Alla.Maevskaya@cern.ch | |
28 | ****************************************************************/ | |
29 | ||
30 | ||
dc7ca31d | 31 | #include <TArrayI.h> |
9edefa04 | 32 | #include <TFile.h> |
dc7ca31d | 33 | #include <TGraph.h> |
9edefa04 | 34 | #include <TH1F.h> |
35 | #include <TMath.h> | |
36 | #include <TRandom.h> | |
37 | #include <TTree.h> | |
dc7ca31d | 38 | |
39 | #include "AliLog.h" | |
40 | #include "AliT0Digitizer.h" | |
41 | #include "AliT0.h" | |
42 | #include "AliT0hit.h" | |
43 | #include "AliT0digit.h" | |
44 | #include "AliRunDigitizer.h" | |
dc7ca31d | 45 | #include "AliRun.h" |
46 | #include <AliLoader.h> | |
47 | #include <AliRunLoader.h> | |
48 | #include <stdlib.h> | |
dc7ca31d | 49 | #include "AliT0Parameters.h" |
dc7ca31d | 50 | |
51 | ClassImp(AliT0Digitizer) | |
52 | ||
53 | //___________________________________________ | |
c41ceaac | 54 | AliT0Digitizer::AliT0Digitizer() :AliDigitizer(), |
55 | fT0(0), | |
56 | fHits(0), | |
57 | fdigits(0), | |
58 | ftimeCFD(new TArrayI(24)), | |
59 | ftimeLED (new TArrayI(24)), | |
60 | fADC(new TArrayI(24)), | |
61 | fADC0 (new TArrayI(24)), | |
62 | fSumMult(0), | |
29d3e0eb | 63 | fAmpLED(0), |
64 | fParam(0) | |
c41ceaac | 65 | |
66 | ||
dc7ca31d | 67 | { |
68 | // Default ctor - don't use it | |
69 | ; | |
70 | } | |
71 | ||
72 | //___________________________________________ | |
73 | AliT0Digitizer::AliT0Digitizer(AliRunDigitizer* manager) | |
74 | :AliDigitizer(manager), | |
75 | fT0(0), | |
76 | fHits(0), | |
77 | fdigits(0), | |
c41ceaac | 78 | ftimeCFD(new TArrayI(24)), |
79 | ftimeLED (new TArrayI(24)), | |
80 | fADC(new TArrayI(24)), | |
81 | fADC0 (new TArrayI(24)), | |
82 | fSumMult(0), | |
29d3e0eb | 83 | fAmpLED(0), |
84 | fParam(0) | |
dc7ca31d | 85 | { |
86 | // ctor which should be used | |
87 | ||
88 | AliDebug(1,"processed"); | |
29d3e0eb | 89 | fParam = AliT0Parameters::Instance(); |
90 | fParam->Init(); | |
12e9daf9 | 91 | Int_t index[25000]; |
92 | Bool_t down=true; | |
dc7ca31d | 93 | |
29d3e0eb | 94 | for (Int_t i=0; i<24; i++){ |
95 | TGraph* gr = fParam ->GetAmpLEDRec(i); | |
96 | Int_t np = gr->GetN(); | |
97 | Double_t *x = gr->GetX(); | |
98 | Double_t *y = gr->GetY(); | |
dc7ca31d | 99 | |
29d3e0eb | 100 | Double_t *x1 = new Double_t[np]; |
101 | Double_t *y1 = new Double_t[np]; | |
102 | for (Int_t ii=0; ii<np; ii++) { | |
2bcc7817 | 103 | y1[ii]=y[np-ii-1]; x1[ii]=x[np-ii-1]; |
29d3e0eb | 104 | } |
105 | ||
106 | TGraph *grInverse = new TGraph(np,y1,x1); | |
29d3e0eb | 107 | fAmpLED.AddAtAndExpand(grInverse,i); |
12e9daf9 | 108 | |
109 | TGraph* grw = fParam ->GetWalk(i); | |
110 | Int_t npw = grw->GetN(); | |
111 | Double_t *yw = grw->GetY(); | |
112 | TMath::Sort(npw, yw, index,down); | |
113 | fMaxValue[i]=Int_t(yw[index[0]]); | |
29d3e0eb | 114 | } |
12e9daf9 | 115 | |
116 | // delete [] x1; | |
117 | // delete [] y1; | |
dc7ca31d | 118 | } |
12e9daf9 | 119 | |
dc7ca31d | 120 | //------------------------------------------------------------------------ |
121 | AliT0Digitizer::~AliT0Digitizer() | |
122 | { | |
123 | // Destructor | |
124 | ||
125 | AliDebug(1,"T0"); | |
126 | ||
127 | delete ftimeCFD; | |
128 | delete fADC; | |
129 | delete ftimeLED; | |
130 | delete fADC0; | |
29d3e0eb | 131 | // delete fAmpLED; |
dc7ca31d | 132 | } |
133 | ||
29d3e0eb | 134 | //------------------------------------------------------------------------ |
dc7ca31d | 135 | Bool_t AliT0Digitizer::Init() |
136 | { | |
137 | // Initialization | |
138 | AliDebug(1," Init"); | |
139 | return kTRUE; | |
140 | } | |
141 | ||
dc7ca31d | 142 | //--------------------------------------------------------------------- |
dc7ca31d | 143 | void AliT0Digitizer::Exec(Option_t* /*option*/) |
144 | { | |
145 | ||
146 | /* | |
147 | Produde digits from hits | |
148 | digits is TObject and includes | |
c41ceaac | 149 | We are writing array if C & A TDC |
150 | C & A ADC (will need for slow simulation) | |
151 | TOF first particle C & A | |
dc7ca31d | 152 | mean time and time difference (vertex position) |
153 | ||
154 | */ | |
155 | ||
156 | //output loader | |
157 | AliRunLoader *outRL = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName()); | |
158 | AliLoader * pOutStartLoader = outRL->GetLoader("T0Loader"); | |
159 | ||
160 | AliDebug(1,"start..."); | |
161 | //input loader | |
162 | // | |
163 | // From hits to digits | |
164 | // | |
74adb36a | 165 | Int_t hit, nhits; |
dc7ca31d | 166 | Int_t countE[24]; |
167 | Int_t volume, pmt, trCFD, trLED; | |
168 | Float_t sl, qt; | |
c41ceaac | 169 | Int_t bestATDC, bestCTDC, qtCh; |
dc7ca31d | 170 | Float_t time[24], besttime[24], timeGaus[24] ; |
74adb36a | 171 | //Q->T-> coefficients !!!! should be asked!!! |
172 | Float_t timeDelayCFD[24]; | |
dc7ca31d | 173 | Int_t threshold =50; //photoelectrons |
174 | Float_t zdetA, zdetC; | |
74adb36a | 175 | Int_t sumMultCoeff = 100; |
740f0839 | 176 | Int_t refpoint=0; |
74adb36a | 177 | TH1F *hr; |
c41ceaac | 178 | |
dc7ca31d | 179 | |
74adb36a | 180 | |
29d3e0eb | 181 | Int_t ph2Mip = fParam->GetPh2Mip(); |
8955c6b4 | 182 | Float_t channelWidth = fParam->GetChannelWidth() ; |
29d3e0eb | 183 | Float_t delayVertex = fParam->GetTimeDelayTVD(); |
5325480c | 184 | |
29d3e0eb | 185 | zdetC = TMath::Abs(fParam->GetZPosition("T0/C/PMT1")); |
186 | zdetA = TMath::Abs(fParam->GetZPosition("T0/A/PMT15")); | |
74adb36a | 187 | |
188 | AliT0hit *startHit; | |
189 | TBranch *brHits=0; | |
190 | ||
dc7ca31d | 191 | Int_t nFiles=fManager->GetNinputs(); |
192 | for (Int_t inputFile=0; inputFile<nFiles; inputFile++) { | |
193 | if (inputFile < nFiles-1) { | |
74adb36a | 194 | AliWarning(Form("ignoring input stream %d", inputFile)); |
195 | continue; | |
196 | ||
dc7ca31d | 197 | } |
198 | ||
c41ceaac | 199 | Float_t besttimeC=99999.; |
200 | Float_t besttimeA=99999.; | |
201 | Int_t pmtBestC=9999; | |
202 | Int_t pmtBestA=9999; | |
dc7ca31d | 203 | Int_t timeDiff=999, meanTime=0; |
204 | Int_t sumMult =0; fSumMult=0; | |
c41ceaac | 205 | bestATDC = 99999; bestCTDC = 99999; |
dc7ca31d | 206 | |
c41ceaac | 207 | |
dc7ca31d | 208 | ftimeCFD -> Reset(); |
209 | fADC -> Reset(); | |
210 | fADC0 -> Reset(); | |
211 | ftimeLED ->Reset(); | |
212 | for (Int_t i0=0; i0<24; i0++) | |
213 | { | |
214 | time[i0]=besttime[i0]=timeGaus[i0]=99999; countE[i0]=0; | |
215 | } | |
216 | AliRunLoader * inRL = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(inputFile)); | |
217 | AliLoader * pInStartLoader = inRL->GetLoader("T0Loader"); | |
218 | if (!inRL->GetAliRun()) inRL->LoadgAlice(); | |
219 | AliT0 *fT0 = (AliT0*)inRL ->GetAliRun()->GetDetector("T0"); | |
220 | ||
221 | //read Hits | |
222 | pInStartLoader->LoadHits("READ");//probably it is necessary to load them before | |
223 | TClonesArray *fHits = fT0->Hits (); | |
224 | TTree *th = pInStartLoader->TreeH(); | |
225 | brHits = th->GetBranch("T0"); | |
226 | if (brHits) { | |
227 | fT0->SetHitsAddressBranch(brHits); | |
228 | }else{ | |
229 | AliError("Branch T0 hit not found"); | |
230 | exit(111); | |
231 | } | |
232 | Int_t ntracks = (Int_t) th->GetEntries(); | |
233 | ||
234 | if (ntracks<=0) return; | |
235 | // Start loop on tracks in the hits containers | |
236 | for (Int_t track=0; track<ntracks;track++) { | |
237 | brHits->GetEntry(track); | |
238 | nhits = fHits->GetEntriesFast(); | |
239 | for (hit=0;hit<nhits;hit++) | |
240 | { | |
241 | startHit = (AliT0hit*) fHits->UncheckedAt(hit); | |
242 | if (!startHit) { | |
243 | AliError("The unchecked hit doesn't exist"); | |
244 | break; | |
245 | } | |
246 | pmt=startHit->Pmt(); | |
247 | Int_t numpmt=pmt-1; | |
248 | Double_t e=startHit->Etot(); | |
249 | volume = startHit->Volume(); | |
250 | ||
251 | // if(e>0 && RegisterPhotoE(numpmt,e)) { | |
252 | if(e>0 ) { | |
253 | countE[numpmt]++; | |
254 | besttime[numpmt] = startHit->Time(); | |
255 | if(besttime[numpmt]<time[numpmt]) | |
256 | { | |
257 | time[numpmt]=besttime[numpmt]; | |
258 | } | |
259 | } //photoelectron accept | |
260 | } //hits loop | |
261 | } //track loop | |
262 | ||
c41ceaac | 263 | //spread time A&C by 25ps && besttime |
dc7ca31d | 264 | Float_t c = 0.0299792; // cm/ps |
265 | ||
266 | Float_t koef=(zdetA-zdetC)/c; //correction position difference by cable | |
267 | for (Int_t ipmt=0; ipmt<12; ipmt++){ | |
268 | if(countE[ipmt] > threshold) { | |
269 | timeGaus[ipmt]=gRandom->Gaus(time[ipmt],25)+koef; | |
c41ceaac | 270 | if(timeGaus[ipmt]<besttimeC){ |
271 | besttimeC=timeGaus[ipmt]; //timeC | |
272 | pmtBestC=ipmt;} | |
9a5cba6d | 273 | } |
dc7ca31d | 274 | } |
9a5cba6d | 275 | for ( Int_t ipmt=12; ipmt<24; ipmt++){ |
dc7ca31d | 276 | if(countE[ipmt] > threshold) { |
277 | timeGaus[ipmt]=gRandom->Gaus(time[ipmt],25); | |
c41ceaac | 278 | if(timeGaus[ipmt]<besttimeA) { |
279 | besttimeA=timeGaus[ipmt]; //timeA | |
280 | pmtBestA=ipmt;} | |
dc7ca31d | 281 | } |
282 | } | |
dc7ca31d | 283 | |
6bfb23c3 | 284 | timeDelayCFD[0] = fParam->GetTimeDelayCFD(0); |
2de4cb9c | 285 | Int_t meanTimeDelay=200; |
6bfb23c3 | 286 | |
dc7ca31d | 287 | for (Int_t i=0; i<24; i++) |
288 | { | |
289 | Float_t al = countE[i]; | |
290 | if (al>threshold && timeGaus[i]<50000 ) { | |
291 | //fill ADC | |
292 | // QTC procedure: | |
293 | // phe -> mV 0.3; 1MIP ->500phe -> ln (amp (mV)) = 5; | |
294 | // max 200ns, HIJING mean 50000phe -> 15000mv -> ln = 15 (s zapasom) | |
295 | // channel 25ps | |
c41ceaac | 296 | qt= 50.*al/ph2Mip; // 50mv/Mip amp in mV |
dc7ca31d | 297 | // fill TDC |
29d3e0eb | 298 | timeDelayCFD[i] = fParam->GetTimeDelayCFD(i); |
12e9daf9 | 299 | trCFD = Int_t (timeGaus[i]/channelWidth + timeDelayCFD[i]); |
29d3e0eb | 300 | TGraph* gr = ((TGraph*)fAmpLED.At(i)); |
74adb36a | 301 | sl = gr->Eval(qt); |
29d3e0eb | 302 | |
94c27e4f | 303 | trLED = Int_t(( timeGaus[i] + 1000*sl )/channelWidth); |
8955c6b4 | 304 | qtCh=Int_t (1000.*TMath::Log(qt) / channelWidth); |
dc7ca31d | 305 | fADC0->AddAt(0,i); |
306 | fADC->AddAt(qtCh,i); | |
dc7ca31d | 307 | ftimeLED->AddAt(trLED,i); |
308 | // sumMult += Int_t ((al*gain[i]/ph2Mip)*50) ; | |
309 | sumMult += Int_t (qt/sumMultCoeff) ; | |
310 | ||
74adb36a | 311 | // put slewing |
29d3e0eb | 312 | TGraph *fu=(TGraph*) fParam ->GetWalk(i) ; |
74adb36a | 313 | Float_t slew=fu->Eval(Float_t(qtCh)); |
12e9daf9 | 314 | |
315 | trCFD=trCFD-Int_t(fMaxValue[i]-slew); | |
74adb36a | 316 | ftimeCFD->AddAt(Int_t (trCFD),i); |
317 | AliDebug(10,Form(" pmt %i : time in ns %f time in channels %i ", | |
318 | i, timeGaus[i],trCFD )); | |
319 | AliDebug(10,Form(" qt in mV %f qt in ns %f qt in channels %i ",qt, | |
320 | TMath::Log(qt), qtCh)); | |
321 | ||
dc7ca31d | 322 | } |
323 | } //pmt loop | |
324 | ||
9a5cba6d | 325 | //folding with alignmentz position distribution |
326 | if( besttimeC > 10000. && besttimeC <15000) | |
327 | bestCTDC=Int_t ((besttimeC+timeDelayCFD[pmtBestC]) | |
328 | /channelWidth); | |
329 | ||
330 | if( besttimeA > 10000. && besttimeA <15000) | |
331 | bestATDC=Int_t ((besttimeA+timeDelayCFD[pmtBestA]) | |
332 | /channelWidth); | |
333 | ||
334 | if (bestATDC < 99999 && bestCTDC < 99999) | |
335 | { | |
336 | timeDiff=Int_t (((besttimeC-besttimeA)+1000*delayVertex) | |
337 | /channelWidth); | |
2de4cb9c | 338 | meanTime=Int_t (((besttimeC+besttimeA)/2. + meanTimeDelay)/channelWidth); |
9a5cba6d | 339 | } |
340 | AliDebug(10,Form(" time A& C %i %i time diff && mean time in channels %i %i",bestATDC,bestCTDC, timeDiff, meanTime)); | |
9a5cba6d | 341 | |
dc7ca31d | 342 | if (sumMult > threshold){ |
343 | fSumMult = Int_t (1000.* TMath::Log(Double_t(sumMult) / Double_t(sumMultCoeff)) | |
344 | /channelWidth); | |
345 | AliDebug(10,Form("summult mv %i mult in chammens %i in ps %i ", | |
346 | sumMult, fSumMult, fSumMult*channelWidth)); | |
347 | } | |
dc7ca31d | 348 | |
740f0839 | 349 | fT0->AddDigit(bestATDC,bestCTDC,meanTime,timeDiff,fSumMult, refpoint, |
c41ceaac | 350 | ftimeCFD,fADC0,ftimeLED,fADC); |
dc7ca31d | 351 | |
740f0839 | 352 | |
353 | AliDebug(10,Form(" Digits wrote refpoint %i bestATDC %i bestCTDC %i meanTime %i timeDiff %i fSumMult %i ",refpoint ,bestATDC,bestCTDC,meanTime,timeDiff,fSumMult )); | |
dc7ca31d | 354 | pOutStartLoader->UnloadHits(); |
355 | } //input streams loop | |
356 | ||
357 | //load digits | |
358 | pOutStartLoader->LoadDigits("UPDATE"); | |
359 | TTree *treeD = pOutStartLoader->TreeD(); | |
360 | if (treeD == 0x0) { | |
361 | pOutStartLoader->MakeTree("D"); | |
362 | treeD = pOutStartLoader->TreeD(); | |
363 | } | |
364 | treeD->Reset(); | |
365 | fT0 = (AliT0*)outRL ->GetAliRun()->GetDetector("T0"); | |
366 | // Make a branch in the tree | |
367 | fT0->MakeBranch("D"); | |
368 | treeD->Fill(); | |
369 | ||
370 | pOutStartLoader->WriteDigits("OVERWRITE"); | |
371 | ||
372 | fT0->ResetDigits(); | |
373 | pOutStartLoader->UnloadDigits(); | |
374 | ||
375 | } |