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), |
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64 | fAmpQTC(0), |
29d3e0eb |
65 | fParam(0) |
c41ceaac |
66 | |
67 | |
dc7ca31d |
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), |
c41ceaac |
79 | ftimeCFD(new TArrayI(24)), |
80 | ftimeLED (new TArrayI(24)), |
81 | fADC(new TArrayI(24)), |
82 | fADC0 (new TArrayI(24)), |
83 | fSumMult(0), |
29d3e0eb |
84 | fAmpLED(0), |
d0bcd1fb |
85 | fAmpQTC(0), |
29d3e0eb |
86 | fParam(0) |
dc7ca31d |
87 | { |
88 | // ctor which should be used |
89 | |
90 | AliDebug(1,"processed"); |
29d3e0eb |
91 | fParam = AliT0Parameters::Instance(); |
92 | fParam->Init(); |
dc7ca31d |
93 | |
29d3e0eb |
94 | for (Int_t i=0; i<24; i++){ |
d0bcd1fb |
95 | TGraph* gr = fParam ->GetAmpLED(i); |
29d3e0eb |
96 | Int_t np = gr->GetN(); |
97 | Double_t *x = gr->GetX(); |
98 | Double_t *y = gr->GetY(); |
d0bcd1fb |
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++) { |
d0bcd1fb |
103 | y1[ii]=y[np-ii-1]; |
104 | x1[ii]=x[np-ii-1]; |
29d3e0eb |
105 | } |
106 | |
107 | TGraph *grInverse = new TGraph(np,y1,x1); |
29d3e0eb |
108 | fAmpLED.AddAtAndExpand(grInverse,i); |
109 | } |
d0bcd1fb |
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 | } |
dc7ca31d |
124 | } |
12e9daf9 |
125 | |
dc7ca31d |
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; |
29d3e0eb |
137 | // delete fAmpLED; |
dc7ca31d |
138 | } |
139 | |
29d3e0eb |
140 | //------------------------------------------------------------------------ |
dc7ca31d |
141 | Bool_t AliT0Digitizer::Init() |
142 | { |
143 | // Initialization |
144 | AliDebug(1," Init"); |
145 | return kTRUE; |
146 | } |
147 | |
dc7ca31d |
148 | //--------------------------------------------------------------------- |
dc7ca31d |
149 | void AliT0Digitizer::Exec(Option_t* /*option*/) |
150 | { |
151 | |
152 | /* |
153 | Produde digits from hits |
154 | digits is TObject and includes |
c41ceaac |
155 | We are writing array if C & A TDC |
156 | C & A ADC (will need for slow simulation) |
157 | TOF first particle C & A |
dc7ca31d |
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 | // |
74adb36a |
171 | Int_t hit, nhits; |
dc7ca31d |
172 | Int_t countE[24]; |
173 | Int_t volume, pmt, trCFD, trLED; |
174 | Float_t sl, qt; |
af3bb1cc |
175 | Int_t bestATDC=0; |
176 | Int_t bestCTDC=0; |
d0bcd1fb |
177 | Float_t qtCh=0; |
dc7ca31d |
178 | Float_t time[24], besttime[24], timeGaus[24] ; |
74adb36a |
179 | //Q->T-> coefficients !!!! should be asked!!! |
180 | Float_t timeDelayCFD[24]; |
dc7ca31d |
181 | Int_t threshold =50; //photoelectrons |
182 | Float_t zdetA, zdetC; |
74adb36a |
183 | Int_t sumMultCoeff = 100; |
740f0839 |
184 | Int_t refpoint=0; |
446d6ec4 |
185 | |
29d3e0eb |
186 | Int_t ph2Mip = fParam->GetPh2Mip(); |
8955c6b4 |
187 | Float_t channelWidth = fParam->GetChannelWidth() ; |
29d3e0eb |
188 | Float_t delayVertex = fParam->GetTimeDelayTVD(); |
5325480c |
189 | |
d0bcd1fb |
190 | |
29d3e0eb |
191 | zdetC = TMath::Abs(fParam->GetZPosition("T0/C/PMT1")); |
192 | zdetA = TMath::Abs(fParam->GetZPosition("T0/A/PMT15")); |
74adb36a |
193 | |
d0bcd1fb |
194 | // printf(" !!!!!Z det A = %f C = % f",zdetA,zdetC); |
74adb36a |
195 | AliT0hit *startHit; |
196 | TBranch *brHits=0; |
197 | |
dc7ca31d |
198 | Int_t nFiles=fManager->GetNinputs(); |
199 | for (Int_t inputFile=0; inputFile<nFiles; inputFile++) { |
200 | if (inputFile < nFiles-1) { |
74adb36a |
201 | AliWarning(Form("ignoring input stream %d", inputFile)); |
202 | continue; |
203 | |
dc7ca31d |
204 | } |
205 | |
c41ceaac |
206 | Float_t besttimeC=99999.; |
207 | Float_t besttimeA=99999.; |
af3bb1cc |
208 | Int_t pmtBestC=99999; |
209 | Int_t pmtBestA=99999; |
210 | Int_t timeDiff=99999, meanTime=99999; |
dc7ca31d |
211 | Int_t sumMult =0; fSumMult=0; |
c41ceaac |
212 | bestATDC = 99999; bestCTDC = 99999; |
dc7ca31d |
213 | |
c41ceaac |
214 | |
dc7ca31d |
215 | ftimeCFD -> Reset(); |
216 | fADC -> Reset(); |
217 | fADC0 -> Reset(); |
218 | ftimeLED ->Reset(); |
219 | for (Int_t i0=0; i0<24; i0++) |
220 | { |
af3bb1cc |
221 | time[i0]=besttime[i0]=timeGaus[i0]=999999; countE[i0]=0; |
dc7ca31d |
222 | } |
223 | AliRunLoader * inRL = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(inputFile)); |
224 | AliLoader * pInStartLoader = inRL->GetLoader("T0Loader"); |
225 | if (!inRL->GetAliRun()) inRL->LoadgAlice(); |
c2337900 |
226 | fT0 = (AliT0*)inRL ->GetAliRun()->GetDetector("T0"); |
dc7ca31d |
227 | |
228 | //read Hits |
229 | pInStartLoader->LoadHits("READ");//probably it is necessary to load them before |
955401cc |
230 | fHits = fT0->Hits (); |
dc7ca31d |
231 | TTree *th = pInStartLoader->TreeH(); |
232 | brHits = th->GetBranch("T0"); |
233 | if (brHits) { |
234 | fT0->SetHitsAddressBranch(brHits); |
235 | }else{ |
af3bb1cc |
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; |
dc7ca31d |
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 | |
dc7ca31d |
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 | |
c41ceaac |
271 | //spread time A&C by 25ps && besttime |
dc7ca31d |
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; |
c41ceaac |
278 | if(timeGaus[ipmt]<besttimeC){ |
279 | besttimeC=timeGaus[ipmt]; //timeC |
280 | pmtBestC=ipmt;} |
9a5cba6d |
281 | } |
dc7ca31d |
282 | } |
9a5cba6d |
283 | for ( Int_t ipmt=12; ipmt<24; ipmt++){ |
dc7ca31d |
284 | if(countE[ipmt] > threshold) { |
285 | timeGaus[ipmt]=gRandom->Gaus(time[ipmt],25); |
c41ceaac |
286 | if(timeGaus[ipmt]<besttimeA) { |
287 | besttimeA=timeGaus[ipmt]; //timeA |
288 | pmtBestA=ipmt;} |
dc7ca31d |
289 | } |
290 | } |
dc7ca31d |
291 | |
6bfb23c3 |
292 | timeDelayCFD[0] = fParam->GetTimeDelayCFD(0); |
446d6ec4 |
293 | |
dc7ca31d |
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 |
d0bcd1fb |
303 | qt= al/ph2Mip; // 50mv/Mip amp in mV |
71cb50f8 |
304 | // before will we have calibration for high multiplicity |
205262fe |
305 | // if (qt > 115.) qt =115.; //must be fix!!! |
dc7ca31d |
306 | // fill TDC |
29d3e0eb |
307 | timeDelayCFD[i] = fParam->GetTimeDelayCFD(i); |
12e9daf9 |
308 | trCFD = Int_t (timeGaus[i]/channelWidth + timeDelayCFD[i]); |
d0bcd1fb |
309 | |
29d3e0eb |
310 | TGraph* gr = ((TGraph*)fAmpLED.At(i)); |
74adb36a |
311 | sl = gr->Eval(qt); |
29d3e0eb |
312 | |
d0bcd1fb |
313 | TGraph* gr1 = ((TGraph*)fAmpQTC.At(i)); |
314 | qtCh = gr1->Eval(qt); |
dc7ca31d |
315 | fADC0->AddAt(0,i); |
d52fab81 |
316 | if(qtCh) |
317 | fADC->AddAt(qtCh,i); |
dc7ca31d |
318 | // sumMult += Int_t ((al*gain[i]/ph2Mip)*50) ; |
d0bcd1fb |
319 | sumMult += Int_t (qtCh/sumMultCoeff) ; |
dc7ca31d |
320 | |
74adb36a |
321 | // put slewing |
71cb50f8 |
322 | TGraph *fu=(TGraph*) fParam ->GetWalk(i); |
74adb36a |
323 | Float_t slew=fu->Eval(Float_t(qtCh)); |
12e9daf9 |
324 | |
446d6ec4 |
325 | // trCFD=trCFD-Int_t(fMaxValue[i]-slew); |
1ca3f118 |
326 | trCFD = trCFD + slew; //for the same channel as cosmic |
74adb36a |
327 | ftimeCFD->AddAt(Int_t (trCFD),i); |
d0bcd1fb |
328 | trLED = Int_t(trCFD + sl ); |
329 | ftimeLED->AddAt(trLED,i); |
446d6ec4 |
330 | AliDebug(10,Form(" pmt %i : time in ns %f time in channels %i LEd %i ", i, timeGaus[i],trCFD, trLED )); |
d0bcd1fb |
331 | AliDebug(10,Form(" qt in MIP %f led-cfd in %f qt in channels %f ",qt, sl, qtCh)); |
74adb36a |
332 | |
dc7ca31d |
333 | } |
334 | } //pmt loop |
335 | |
9a5cba6d |
336 | //folding with alignmentz position distribution |
337 | if( besttimeC > 10000. && besttimeC <15000) |
338 | bestCTDC=Int_t ((besttimeC+timeDelayCFD[pmtBestC]) |
339 | /channelWidth); |
340 | |
341 | if( besttimeA > 10000. && besttimeA <15000) |
342 | bestATDC=Int_t ((besttimeA+timeDelayCFD[pmtBestA]) |
343 | /channelWidth); |
344 | |
345 | if (bestATDC < 99999 && bestCTDC < 99999) |
346 | { |
347 | timeDiff=Int_t (((besttimeC-besttimeA)+1000*delayVertex) |
348 | /channelWidth); |
446d6ec4 |
349 | meanTime=Int_t (((besttimeC+besttimeA)/2. )/channelWidth); |
9a5cba6d |
350 | } |
9a5cba6d |
351 | |
dc7ca31d |
352 | if (sumMult > threshold){ |
353 | fSumMult = Int_t (1000.* TMath::Log(Double_t(sumMult) / Double_t(sumMultCoeff)) |
354 | /channelWidth); |
355 | AliDebug(10,Form("summult mv %i mult in chammens %i in ps %i ", |
356 | sumMult, fSumMult, fSumMult*channelWidth)); |
357 | } |
dc7ca31d |
358 | |
740f0839 |
359 | fT0->AddDigit(bestATDC,bestCTDC,meanTime,timeDiff,fSumMult, refpoint, |
c41ceaac |
360 | ftimeCFD,fADC0,ftimeLED,fADC); |
dc7ca31d |
361 | |
740f0839 |
362 | |
363 | AliDebug(10,Form(" Digits wrote refpoint %i bestATDC %i bestCTDC %i meanTime %i timeDiff %i fSumMult %i ",refpoint ,bestATDC,bestCTDC,meanTime,timeDiff,fSumMult )); |
dc7ca31d |
364 | pOutStartLoader->UnloadHits(); |
365 | } //input streams loop |
366 | |
367 | //load digits |
368 | pOutStartLoader->LoadDigits("UPDATE"); |
369 | TTree *treeD = pOutStartLoader->TreeD(); |
370 | if (treeD == 0x0) { |
371 | pOutStartLoader->MakeTree("D"); |
372 | treeD = pOutStartLoader->TreeD(); |
373 | } |
374 | treeD->Reset(); |
375 | fT0 = (AliT0*)outRL ->GetAliRun()->GetDetector("T0"); |
376 | // Make a branch in the tree |
377 | fT0->MakeBranch("D"); |
378 | treeD->Fill(); |
379 | |
380 | pOutStartLoader->WriteDigits("OVERWRITE"); |
381 | |
382 | fT0->ResetDigits(); |
383 | pOutStartLoader->UnloadDigits(); |
384 | |
385 | } |