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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 | /* $Id$ */ | |
18 | ||
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 | ||
31 | #include <TArrayI.h> | |
32 | #include <TFile.h> | |
33 | #include <TGraph.h> | |
34 | #include <TH1F.h> | |
35 | #include <TMath.h> | |
36 | #include <TRandom.h> | |
37 | #include <TTree.h> | |
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" | |
45 | #include "AliRun.h" | |
46 | #include <AliLoader.h> | |
47 | #include <AliRunLoader.h> | |
48 | #include <stdlib.h> | |
49 | #include "AliT0Parameters.h" | |
50 | ||
51 | ClassImp(AliT0Digitizer) | |
52 | ||
53 | //___________________________________________ | |
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), | |
63 | fAmpLED(0), | |
64 | fAmpQTC(0), | |
65 | fParam(0) | |
66 | ||
67 | ||
68 | { | |
69 | // Default ctor - don't use it | |
70 | ; | |
71 | } | |
72 | ||
73 | //___________________________________________ | |
74 | AliT0Digitizer::AliT0Digitizer(AliRunDigitizer* manager) | |
75 | :AliDigitizer(manager), | |
76 | fT0(0), | |
77 | fHits(0), | |
78 | fdigits(0), | |
79 | ftimeCFD(new TArrayI(24)), | |
80 | ftimeLED (new TArrayI(24)), | |
81 | fADC(new TArrayI(24)), | |
82 | fADC0 (new TArrayI(24)), | |
83 | fSumMult(0), | |
84 | fAmpLED(0), | |
85 | fAmpQTC(0), | |
86 | fParam(0) | |
87 | { | |
88 | // ctor which should be used | |
89 | ||
90 | AliDebug(1,"processed"); | |
91 | fParam = AliT0Parameters::Instance(); | |
92 | fParam->Init(); | |
93 | ||
94 | for (Int_t i=0; i<24; i++){ | |
95 | TGraph* gr = fParam ->GetAmpLED(i); | |
96 | Int_t np = gr->GetN(); | |
97 | Double_t *x = gr->GetX(); | |
98 | Double_t *y = gr->GetY(); | |
99 | ||
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++) { | |
103 | y1[ii]=y[np-ii-1]; | |
104 | x1[ii]=x[np-ii-1]; | |
105 | } | |
106 | ||
107 | TGraph *grInverse = new TGraph(np,y1,x1); | |
108 | fAmpLED.AddAtAndExpand(grInverse,i); | |
109 | } | |
110 | for (Int_t i=0; i<24; i++){ | |
111 | TGraph* grq = fParam ->GetQTC(i); | |
112 | Int_t npq = grq->GetN(); | |
113 | Double_t *xq = grq->GetX(); | |
114 | Double_t *yq = grq->GetY(); | |
115 | Double_t *x1q = new Double_t[npq]; | |
116 | Double_t *y1q = new Double_t[npq]; | |
117 | for (Int_t ii=1; ii<npq; ii++) { | |
118 | y1q[ii]=yq[ii-1]; | |
119 | x1q[ii]=xq[ii-1]; | |
120 | } | |
121 | TGraph *grInverseQTC = new TGraph(npq,y1q,x1q); | |
122 | fAmpQTC.AddAtAndExpand(grInverseQTC,i); | |
123 | } | |
124 | } | |
125 | ||
126 | //------------------------------------------------------------------------ | |
127 | AliT0Digitizer::~AliT0Digitizer() | |
128 | { | |
129 | // Destructor | |
130 | ||
131 | AliDebug(1,"T0"); | |
132 | ||
133 | delete ftimeCFD; | |
134 | delete fADC; | |
135 | delete ftimeLED; | |
136 | delete fADC0; | |
137 | // delete fAmpLED; | |
138 | } | |
139 | ||
140 | //------------------------------------------------------------------------ | |
141 | Bool_t AliT0Digitizer::Init() | |
142 | { | |
143 | // Initialization | |
144 | AliDebug(1," Init"); | |
145 | return kTRUE; | |
146 | } | |
147 | ||
148 | //--------------------------------------------------------------------- | |
149 | void AliT0Digitizer::Exec(Option_t* /*option*/) | |
150 | { | |
151 | ||
152 | /* | |
153 | Produde digits from hits | |
154 | digits is TObject and includes | |
155 | We are writing array if C & A TDC | |
156 | C & A ADC (will need for slow simulation) | |
157 | TOF first particle C & A | |
158 | mean time and time difference (vertex position) | |
159 | ||
160 | */ | |
161 | ||
162 | //output loader | |
163 | AliRunLoader *outRL = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName()); | |
164 | AliLoader * pOutStartLoader = outRL->GetLoader("T0Loader"); | |
165 | ||
166 | AliDebug(1,"start..."); | |
167 | //input loader | |
168 | // | |
169 | // From hits to digits | |
170 | // | |
171 | Int_t hit, nhits; | |
172 | Int_t countE[24]; | |
173 | Int_t volume, pmt, trCFD, trLED; | |
174 | Float_t sl, qt; | |
175 | Int_t bestATDC=0; | |
176 | Int_t bestCTDC=0; | |
177 | Float_t qtCh=0; | |
178 | Float_t time[24], besttime[24], timeGaus[24] ; | |
179 | //Q->T-> coefficients !!!! should be asked!!! | |
180 | Float_t timeDelayCFD[24]; | |
181 | Int_t threshold =50; //photoelectrons | |
182 | Float_t zdetA, zdetC; | |
183 | Int_t sumMultCoeff = 100; | |
184 | Int_t refpoint=0; | |
185 | ||
186 | Int_t ph2Mip = fParam->GetPh2Mip(); | |
187 | Float_t channelWidth = fParam->GetChannelWidth() ; | |
188 | Float_t delayVertex = fParam->GetTimeDelayTVD(); | |
189 | ||
190 | ||
191 | zdetC = TMath::Abs(fParam->GetZPosition("T0/C/PMT1")); | |
192 | zdetA = TMath::Abs(fParam->GetZPosition("T0/A/PMT15")); | |
193 | ||
194 | // printf(" !!!!!Z det A = %f C = % f",zdetA,zdetC); | |
195 | AliT0hit *startHit; | |
196 | TBranch *brHits=0; | |
197 | ||
198 | Int_t nFiles=fManager->GetNinputs(); | |
199 | for (Int_t inputFile=0; inputFile<nFiles; inputFile++) { | |
200 | if (inputFile < nFiles-1) { | |
201 | AliWarning(Form("ignoring input stream %d", inputFile)); | |
202 | continue; | |
203 | ||
204 | } | |
205 | ||
206 | Float_t besttimeC=99999.; | |
207 | Float_t besttimeA=99999.; | |
208 | Int_t pmtBestC=99999; | |
209 | Int_t pmtBestA=99999; | |
210 | Int_t timeDiff=99999, meanTime=99999; | |
211 | Int_t sumMult =0; fSumMult=0; | |
212 | bestATDC = 99999; bestCTDC = 99999; | |
213 | ||
214 | ||
215 | ftimeCFD -> Reset(); | |
216 | fADC -> Reset(); | |
217 | fADC0 -> Reset(); | |
218 | ftimeLED ->Reset(); | |
219 | for (Int_t i0=0; i0<24; i0++) | |
220 | { | |
221 | time[i0]=besttime[i0]=timeGaus[i0]=999999; countE[i0]=0; | |
222 | } | |
223 | AliRunLoader * inRL = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(inputFile)); | |
224 | AliLoader * pInStartLoader = inRL->GetLoader("T0Loader"); | |
225 | if (!inRL->GetAliRun()) inRL->LoadgAlice(); | |
226 | fT0 = (AliT0*)inRL ->GetAliRun()->GetDetector("T0"); | |
227 | ||
228 | //read Hits | |
229 | pInStartLoader->LoadHits("READ");//probably it is necessary to load them before | |
230 | fHits = fT0->Hits (); | |
231 | TTree *th = pInStartLoader->TreeH(); | |
232 | brHits = th->GetBranch("T0"); | |
233 | if (brHits) { | |
234 | fT0->SetHitsAddressBranch(brHits); | |
235 | }else{ | |
236 | AliWarning("Branch T0 hit not found for this event"); | |
237 | // fT0->AddDigit(bestATDC,bestCTDC,meanTime,timeDiff,fSumMult, refpoint, | |
238 | // ftimeCFD,fADC0,ftimeLED,fADC); | |
239 | continue; | |
240 | } | |
241 | Int_t ntracks = (Int_t) th->GetEntries(); | |
242 | ||
243 | if (ntracks<=0) return; | |
244 | // Start loop on tracks in the hits containers | |
245 | for (Int_t track=0; track<ntracks;track++) { | |
246 | brHits->GetEntry(track); | |
247 | nhits = fHits->GetEntriesFast(); | |
248 | for (hit=0;hit<nhits;hit++) | |
249 | { | |
250 | startHit = (AliT0hit*) fHits->UncheckedAt(hit); | |
251 | if (!startHit) { | |
252 | AliError("The unchecked hit doesn't exist"); | |
253 | break; | |
254 | } | |
255 | pmt=startHit->Pmt(); | |
256 | Int_t numpmt=pmt-1; | |
257 | Double_t e=startHit->Etot(); | |
258 | volume = startHit->Volume(); | |
259 | ||
260 | if(e>0 ) { | |
261 | countE[numpmt]++; | |
262 | besttime[numpmt] = startHit->Time(); | |
263 | if(besttime[numpmt]<time[numpmt]) | |
264 | { | |
265 | time[numpmt]=besttime[numpmt]; | |
266 | } | |
267 | } //photoelectron accept | |
268 | } //hits loop | |
269 | } //track loop | |
270 | ||
271 | //spread time A&C by 25ps && besttime | |
272 | Float_t c = 0.0299792; // cm/ps | |
273 | ||
274 | Float_t koef=(zdetA-zdetC)/c; //correction position difference by cable | |
275 | for (Int_t ipmt=0; ipmt<12; ipmt++){ | |
276 | if(countE[ipmt] > threshold) { | |
277 | timeGaus[ipmt]=gRandom->Gaus(time[ipmt],25)+koef; | |
278 | if(timeGaus[ipmt]<besttimeC){ | |
279 | besttimeC=timeGaus[ipmt]; //timeC | |
280 | pmtBestC=ipmt;} | |
281 | } | |
282 | } | |
283 | for ( Int_t ipmt=12; ipmt<24; ipmt++){ | |
284 | if(countE[ipmt] > threshold) { | |
285 | timeGaus[ipmt]=gRandom->Gaus(time[ipmt],25); | |
286 | if(timeGaus[ipmt]<besttimeA) { | |
287 | besttimeA=timeGaus[ipmt]; //timeA | |
288 | pmtBestA=ipmt;} | |
289 | } | |
290 | } | |
291 | ||
292 | timeDelayCFD[0] = fParam->GetTimeDelayCFD(0); | |
293 | ||
294 | for (Int_t i=0; i<24; i++) | |
295 | { | |
296 | Float_t al = countE[i]; | |
297 | if (al>threshold && timeGaus[i]<50000 ) { | |
298 | //fill ADC | |
299 | // QTC procedure: | |
300 | // phe -> mV 0.3; 1MIP ->500phe -> ln (amp (mV)) = 5; | |
301 | // max 200ns, HIJING mean 50000phe -> 15000mv -> ln = 15 (s zapasom) | |
302 | // channel 25ps | |
303 | qt= al/ph2Mip; // 50mv/Mip amp in mV | |
304 | // fill TDC | |
305 | timeDelayCFD[i] = fParam->GetTimeDelayCFD(i); | |
306 | trCFD = Int_t (timeGaus[i]/channelWidth + timeDelayCFD[i]); | |
307 | ||
308 | TGraph* gr = ((TGraph*)fAmpLED.At(i)); | |
309 | sl = gr->Eval(qt); | |
310 | ||
311 | TGraph* gr1 = ((TGraph*)fAmpQTC.At(i)); | |
312 | qtCh = gr1->Eval(qt); | |
313 | fADC0->AddAt(0,i); | |
314 | fADC->AddAt(qtCh,i); | |
315 | // sumMult += Int_t ((al*gain[i]/ph2Mip)*50) ; | |
316 | sumMult += Int_t (qtCh/sumMultCoeff) ; | |
317 | ||
318 | // put slewing | |
319 | TGraph *fu=(TGraph*) fParam ->GetWalk(i) ; | |
320 | Float_t slew=fu->Eval(Float_t(qtCh)); | |
321 | ||
322 | // trCFD=trCFD-Int_t(fMaxValue[i]-slew); | |
323 | trCFD = trCFD - slew; //for the same channel as cosmic | |
324 | ftimeCFD->AddAt(Int_t (trCFD),i); | |
325 | trLED = Int_t(trCFD + sl ); | |
326 | ftimeLED->AddAt(trLED,i); | |
327 | AliDebug(10,Form(" pmt %i : time in ns %f time in channels %i LEd %i ", i, timeGaus[i],trCFD, trLED )); | |
328 | AliDebug(10,Form(" qt in MIP %f led-cfd in %f qt in channels %f ",qt, sl, qtCh)); | |
329 | ||
330 | } | |
331 | } //pmt loop | |
332 | ||
333 | //folding with alignmentz position distribution | |
334 | if( besttimeC > 10000. && besttimeC <15000) | |
335 | bestCTDC=Int_t ((besttimeC+timeDelayCFD[pmtBestC]) | |
336 | /channelWidth); | |
337 | ||
338 | if( besttimeA > 10000. && besttimeA <15000) | |
339 | bestATDC=Int_t ((besttimeA+timeDelayCFD[pmtBestA]) | |
340 | /channelWidth); | |
341 | ||
342 | if (bestATDC < 99999 && bestCTDC < 99999) | |
343 | { | |
344 | timeDiff=Int_t (((besttimeC-besttimeA)+1000*delayVertex) | |
345 | /channelWidth); | |
346 | meanTime=Int_t (((besttimeC+besttimeA)/2. )/channelWidth); | |
347 | } | |
348 | ||
349 | if (sumMult > threshold){ | |
350 | fSumMult = Int_t (1000.* TMath::Log(Double_t(sumMult) / Double_t(sumMultCoeff)) | |
351 | /channelWidth); | |
352 | AliDebug(10,Form("summult mv %i mult in chammens %i in ps %i ", | |
353 | sumMult, fSumMult, fSumMult*channelWidth)); | |
354 | } | |
355 | ||
356 | fT0->AddDigit(bestATDC,bestCTDC,meanTime,timeDiff,fSumMult, refpoint, | |
357 | ftimeCFD,fADC0,ftimeLED,fADC); | |
358 | ||
359 | ||
360 | AliDebug(10,Form(" Digits wrote refpoint %i bestATDC %i bestCTDC %i meanTime %i timeDiff %i fSumMult %i ",refpoint ,bestATDC,bestCTDC,meanTime,timeDiff,fSumMult )); | |
361 | pOutStartLoader->UnloadHits(); | |
362 | } //input streams loop | |
363 | ||
364 | //load digits | |
365 | pOutStartLoader->LoadDigits("UPDATE"); | |
366 | TTree *treeD = pOutStartLoader->TreeD(); | |
367 | if (treeD == 0x0) { | |
368 | pOutStartLoader->MakeTree("D"); | |
369 | treeD = pOutStartLoader->TreeD(); | |
370 | } | |
371 | treeD->Reset(); | |
372 | fT0 = (AliT0*)outRL ->GetAliRun()->GetDetector("T0"); | |
373 | // Make a branch in the tree | |
374 | fT0->MakeBranch("D"); | |
375 | treeD->Fill(); | |
376 | ||
377 | pOutStartLoader->WriteDigits("OVERWRITE"); | |
378 | ||
379 | fT0->ResetDigits(); | |
380 | pOutStartLoader->UnloadDigits(); | |
381 | ||
382 | } |