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517b7f8f | 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 | //_________________________________________________________________________ | |
17 | // This is a TTask that constructs SDigits out of Hits | |
ea7a588a | 18 | // A Summable Digits is the "sum" of all hits in a pad |
19 | // Detector response has been simulated via the method | |
20 | // SimulateDetectorResponse | |
517b7f8f | 21 | // |
ea7a588a | 22 | //-- Authors: F. Pierella, A. De Caro |
23 | // Use case: see AliTOFhits2sdigits.C macro in the CVS | |
517b7f8f | 24 | ////////////////////////////////////////////////////////////////////////////// |
25 | ||
ea7a588a | 26 | #include "TBenchmark.h" |
517b7f8f | 27 | #include "TTask.h" |
28 | #include "TTree.h" | |
29 | #include "TSystem.h" | |
ea7a588a | 30 | #include "TParticle.h" |
31 | #include "TH1.h" | |
bfec09a6 | 32 | #include "TFile.h" |
33 | #include "TROOT.h" | |
34 | #include "TFolder.h" | |
35 | #include <TF1.h> | |
36 | #include <stdlib.h> | |
37 | #include <iostream.h> | |
38 | #include <fstream.h> | |
517b7f8f | 39 | |
5919c40c | 40 | #include "AliTOFHitMap.h" |
41 | #include "AliTOFSDigit.h" | |
f73548c4 | 42 | #include "AliTOFConstants.h" |
517b7f8f | 43 | #include "AliTOFhit.h" |
016e1f91 | 44 | #include "AliTOFhitT0.h" |
517b7f8f | 45 | #include "AliTOF.h" |
46 | #include "AliTOFv1.h" | |
47 | #include "AliTOFv2.h" | |
48 | #include "AliTOFv3.h" | |
49 | #include "AliTOFv4.h" | |
50 | #include "AliTOFSDigitizer.h" | |
51 | #include "AliRun.h" | |
52 | #include "AliDetector.h" | |
53 | #include "AliMC.h" | |
54 | ||
517b7f8f | 55 | |
56 | ClassImp(AliTOFSDigitizer) | |
57 | ||
58 | //____________________________________________________________________________ | |
59 | AliTOFSDigitizer::AliTOFSDigitizer():TTask("AliTOFSDigitizer","") | |
60 | { | |
61 | // ctor | |
ea7a588a | 62 | fEvent1=0; |
63 | fEvent2=0; | |
f73548c4 | 64 | ftail = 0; |
55991c8b | 65 | fSelectedSector=0; |
66 | fSelectedPlate =0; | |
517b7f8f | 67 | } |
68 | ||
69 | //____________________________________________________________________________ | |
bfec09a6 | 70 | AliTOFSDigitizer::AliTOFSDigitizer(char* HeaderFile, Int_t evNumber1, Int_t nEvents):TTask("AliTOFSDigitizer","") |
517b7f8f | 71 | { |
ea7a588a | 72 | fEvent1=evNumber1; |
73 | fEvent2=fEvent1+nEvents; | |
f73548c4 | 74 | ftail = 0; |
55991c8b | 75 | fSelectedSector=0; // by default we sdigitize all sectors |
76 | fSelectedPlate =0; // by default we sdigitize all plates in all sectors | |
f73548c4 | 77 | |
ea7a588a | 78 | fHeadersFile = HeaderFile ; // input filename (with hits) |
ea7a588a | 79 | TFile * file = (TFile*) gROOT->GetFile(fHeadersFile.Data() ) ; |
80 | ||
81 | //File was not opened yet | |
82 | // open file and get alirun object | |
83 | if(file == 0){ | |
84 | file = TFile::Open(fHeadersFile.Data(),"update") ; | |
85 | gAlice = (AliRun *) file->Get("gAlice") ; | |
86 | } | |
87 | ||
f73548c4 | 88 | // init parameters for sdigitization |
89 | InitParameters(); | |
90 | ||
517b7f8f | 91 | // add Task to //root/Tasks folder |
92 | TTask * roottasks = (TTask*)gROOT->GetRootFolder()->FindObject("Tasks") ; | |
93 | roottasks->Add(this) ; | |
94 | } | |
95 | ||
96 | //____________________________________________________________________________ | |
97 | AliTOFSDigitizer::~AliTOFSDigitizer() | |
98 | { | |
99 | // dtor | |
f73548c4 | 100 | } |
101 | ||
102 | //____________________________________________________________________________ | |
103 | void AliTOFSDigitizer::InitParameters() | |
104 | { | |
105 | // set parameters for detector simulation | |
106 | ||
107 | fTimeResolution =0.120; | |
108 | fpadefficiency =0.99 ; | |
109 | fEdgeEffect = 2 ; | |
110 | fEdgeTails = 0 ; | |
111 | fHparameter = 0.4 ; | |
112 | fH2parameter = 0.15; | |
113 | fKparameter = 0.5 ; | |
114 | fK2parameter = 0.35; | |
115 | fEffCenter = fpadefficiency; | |
116 | fEffBoundary = 0.65; | |
117 | fEff2Boundary = 0.90; | |
118 | fEff3Boundary = 0.08; | |
119 | fResCenter = 50. ; | |
120 | fResBoundary = 70. ; | |
121 | fResSlope = 40. ; | |
122 | fTimeWalkCenter = 0. ; | |
123 | fTimeWalkBoundary=0. ; | |
124 | fTimeWalkSlope = 0. ; | |
125 | fTimeDelayFlag = 1 ; | |
126 | fPulseHeightSlope=2.0 ; | |
127 | fTimeDelaySlope =0.060; | |
128 | // was fMinimumCharge = TMath::Exp(fPulseHeightSlope*fKparameter/2.); | |
129 | fMinimumCharge = TMath::Exp(-fPulseHeightSlope*fHparameter); | |
130 | fChargeSmearing=0.0 ; | |
131 | fLogChargeSmearing=0.13; | |
132 | fTimeSmearing =0.022; | |
133 | fAverageTimeFlag=0 ; | |
ea7a588a | 134 | fTdcBin = 50.; // 1 TDC bin = 50 ps |
135 | fAdcBin = 0.25; // 1 ADC bin = 0.25 pC (or 0.03 pC) | |
136 | fAdcMean = 50.; // ADC distribution mpv value for Landau (in bins) | |
137 | // it corresponds to a mean value of ~100 bins | |
138 | fAdcRms = 25.; // ADC distribution rms value (in bins) | |
139 | // it corresponds to distribution rms ~50 bins | |
f73548c4 | 140 | } |
141 | ||
142 | //__________________________________________________________________ | |
ea7a588a | 143 | Double_t TimeWithTail(Double_t* x, Double_t* par) |
f73548c4 | 144 | { |
145 | // sigma - par[0], alpha - par[1], part - par[2] | |
146 | // at x<part*sigma - gauss | |
147 | // at x>part*sigma - TMath::Exp(-x/alpha) | |
148 | Float_t xx =x[0]; | |
149 | Double_t f; | |
150 | if(xx<par[0]*par[2]) { | |
151 | f = TMath::Exp(-xx*xx/(2*par[0]*par[0])); | |
152 | } else { | |
153 | f = TMath::Exp(-(xx-par[0]*par[2])/par[1]-0.5*par[2]*par[2]); | |
154 | } | |
155 | return f; | |
517b7f8f | 156 | } |
157 | ||
f73548c4 | 158 | |
517b7f8f | 159 | //____________________________________________________________________________ |
ea7a588a | 160 | void AliTOFSDigitizer::Exec(Option_t *verboseOption, Option_t *allEvents) { |
517b7f8f | 161 | |
ea7a588a | 162 | if(strstr(verboseOption,"tim") || strstr(verboseOption,"all")) |
163 | gBenchmark->Start("TOFSDigitizer"); | |
517b7f8f | 164 | |
517b7f8f | 165 | AliTOF *TOF = (AliTOF *) gAlice->GetDetector ("TOF"); |
166 | ||
5919c40c | 167 | if (!TOF) { |
168 | Error("AliTOFSDigitizer","TOF not found"); | |
169 | return; | |
170 | } | |
171 | ||
55991c8b | 172 | // is pointer to fSDigits non zero after changes? |
173 | cout<<"TOF fSDigits pointer:"<<TOF->SDigits()<<endl; | |
174 | ||
175 | // recreate TClonesArray fSDigits - for backward compatibility | |
176 | if (TOF->SDigits() == 0) { | |
177 | TOF->CreateSDigitsArray(); | |
178 | } else { | |
179 | TOF->RecreateSDigitsArray(); | |
180 | } | |
181 | ||
016e1f91 | 182 | Int_t version=TOF->IsVersion(); |
55991c8b | 183 | |
ea7a588a | 184 | if (fEdgeTails) ftail = new TF1("tail",TimeWithTail,-2,2,3); |
185 | ||
186 | Int_t nselectedHits=0; | |
187 | Int_t ntotalsdigits=0; | |
188 | Int_t ntotalupdates=0; | |
189 | Int_t nnoisesdigits=0; | |
190 | Int_t nsignalsdigits=0; | |
191 | Int_t nHitsFromPrim=0; | |
192 | Int_t nHitsFromSec=0; | |
193 | Int_t nlargeTofDiff=0; | |
f73548c4 | 194 | |
ea7a588a | 195 | if (strstr(allEvents,"all")){ |
196 | fEvent1=0; | |
197 | fEvent2= (Int_t) gAlice->TreeE()->GetEntries(); | |
198 | } | |
199 | ||
55991c8b | 200 | Bool_t thereIsNotASelection=(fSelectedSector==0) && (fSelectedPlate==0); |
201 | ||
ea7a588a | 202 | for (Int_t ievent = fEvent1; ievent < fEvent2; ievent++) { |
203 | cout << "------------------- "<< GetName() << " -------------" << endl ; | |
204 | cout << "Sdigitizing event " << ievent << endl; | |
205 | ||
206 | Int_t nselectedHitsinEv=0; | |
207 | Int_t ntotalsdigitsinEv=0; | |
208 | Int_t ntotalupdatesinEv=0; | |
209 | Int_t nnoisesdigitsinEv=0; | |
210 | Int_t nsignalsdigitsinEv=0; | |
517b7f8f | 211 | |
5919c40c | 212 | gAlice->GetEvent(ievent); |
213 | TTree *TH = gAlice->TreeH (); | |
214 | if (!TH) | |
215 | return; | |
216 | if (gAlice->TreeS () == 0) | |
217 | gAlice->MakeTree ("S"); | |
517b7f8f | 218 | |
219 | ||
5919c40c | 220 | //Make branches |
221 | char branchname[20]; | |
222 | sprintf (branchname, "%s", TOF->GetName ()); | |
223 | //Make branch for digits | |
224 | TOF->MakeBranch ("S"); | |
517b7f8f | 225 | |
5919c40c | 226 | //Now made SDigits from hits |
227 | ||
016e1f91 | 228 | |
5919c40c | 229 | TParticle *particle; |
016e1f91 | 230 | //AliTOFhit *tofHit; |
5919c40c | 231 | TClonesArray *TOFhits = TOF->Hits(); |
232 | ||
f73548c4 | 233 | // create hit map |
5919c40c | 234 | AliTOFHitMap *hitMap = new AliTOFHitMap(TOF->SDigits()); |
235 | ||
55991c8b | 236 | // increase performances in terms of CPU time |
bfec09a6 | 237 | TH->SetBranchStatus("*",0); // switch off all branches |
238 | TH->SetBranchStatus("TOF*",1); // switch on only TOF | |
239 | ||
5919c40c | 240 | Int_t ntracks = static_cast<Int_t>(TH->GetEntries()); |
241 | for (Int_t track = 0; track < ntracks; track++) | |
242 | { | |
243 | gAlice->ResetHits(); | |
244 | TH->GetEvent(track); | |
245 | particle = gAlice->Particle(track); | |
246 | Int_t nhits = TOFhits->GetEntriesFast(); | |
f73548c4 | 247 | // cleaning all hits of the same track in the same pad volume |
248 | // it is a rare event, however it happens | |
249 | ||
250 | Int_t previousTrack =0; | |
251 | Int_t previousSector=0; | |
252 | Int_t previousPlate =0; | |
253 | Int_t previousStrip =0; | |
254 | Int_t previousPadX =0; | |
255 | Int_t previousPadZ =0; | |
5919c40c | 256 | |
257 | for (Int_t hit = 0; hit < nhits; hit++) | |
258 | { | |
016e1f91 | 259 | Int_t vol[5]; // location for a digit |
260 | Float_t digit[2]; // TOF digit variables | |
261 | Int_t tracknum; | |
262 | Float_t Xpad; | |
263 | Float_t Zpad; | |
264 | Float_t geantTime; | |
265 | ||
266 | // fp: really sorry for this, it is a temporary trick to have | |
267 | // track length too | |
268 | if(version!=6){ | |
269 | AliTOFhit *tofHit = (AliTOFhit *) TOFhits->UncheckedAt(hit); | |
270 | tracknum = tofHit->GetTrack(); | |
271 | vol[0] = tofHit->GetSector(); | |
272 | vol[1] = tofHit->GetPlate(); | |
273 | vol[2] = tofHit->GetStrip(); | |
274 | vol[3] = tofHit->GetPadx(); | |
275 | vol[4] = tofHit->GetPadz(); | |
276 | Xpad = tofHit->GetDx(); | |
277 | Zpad = tofHit->GetDz(); | |
278 | geantTime = tofHit->GetTof(); // unit [s] | |
279 | } else { | |
280 | AliTOFhitT0 *tofHit = (AliTOFhitT0 *) TOFhits->UncheckedAt(hit); | |
281 | tracknum = tofHit->GetTrack(); | |
282 | vol[0] = tofHit->GetSector(); | |
283 | vol[1] = tofHit->GetPlate(); | |
55991c8b | 284 | vol[2] = tofHit->GetStrip(); |
285 | vol[3] = tofHit->GetPadx(); | |
286 | vol[4] = tofHit->GetPadz(); | |
016e1f91 | 287 | Xpad = tofHit->GetDx(); |
288 | Zpad = tofHit->GetDz(); | |
289 | geantTime = tofHit->GetTof(); // unit [s] | |
290 | } | |
291 | ||
292 | geantTime *= 1.e+09; // conversion from [s] to [ns] | |
293 | ||
294 | // selection case for sdigitizing only hits in a given plate of a given sector | |
295 | if(thereIsNotASelection || (vol[0]==fSelectedSector && vol[1]==fSelectedPlate)){ | |
55991c8b | 296 | |
297 | Bool_t dummy=((tracknum==previousTrack) && (vol[0]==previousSector) && (vol[1]==previousPlate) && (vol[2]==previousStrip)); | |
298 | ||
299 | Bool_t isCloneOfThePrevious=dummy && ((vol[3]==previousPadX) && (vol[4]==previousPadZ)); | |
300 | ||
b213b8bd | 301 | Bool_t isNeighOfThePrevious=dummy && ((((vol[3]==previousPadX-1) || (vol[3]==previousPadX+1)) && (vol[4]==previousPadZ)) || ((vol[3]==previousPadX) && ((vol[4]==previousPadZ+1) || (vol[4]==previousPadZ-1)))); |
55991c8b | 302 | |
b213b8bd | 303 | if(!isCloneOfThePrevious && !isNeighOfThePrevious){ |
55991c8b | 304 | // update "previous" values |
305 | // in fact, we are yet in the future, so the present is past | |
306 | previousTrack=tracknum; | |
307 | previousSector=vol[0]; | |
308 | previousPlate=vol[1]; | |
309 | previousStrip=vol[2]; | |
310 | previousPadX=vol[3]; | |
311 | previousPadZ=vol[4]; | |
312 | ||
313 | nselectedHits++; | |
314 | nselectedHitsinEv++; | |
315 | if (particle->GetFirstMother() < 0){ | |
316 | nHitsFromPrim++; | |
317 | } // counts hits due to primary particles | |
318 | ||
55991c8b | 319 | Float_t xStrip=AliTOFConstants::fgkXPad*(vol[3]-0.5-0.5*AliTOFConstants::fgkNpadX)+Xpad; |
320 | Float_t zStrip=AliTOFConstants::fgkZPad*(vol[4]-0.5-0.5*AliTOFConstants::fgkNpadZ)+Zpad; | |
016e1f91 | 321 | |
55991c8b | 322 | //cout << "geantTime " << geantTime << " [ns]" << endl; |
323 | Int_t nActivatedPads = 0, nFiredPads = 0; | |
324 | Bool_t isFired[4] = {kFALSE, kFALSE, kFALSE, kFALSE}; | |
325 | Float_t tofAfterSimul[4] = {0., 0., 0., 0.}; | |
326 | Float_t qInduced[4] = {0.,0.,0.,0.}; | |
327 | Int_t nPlace[4] = {0, 0, 0, 0}; | |
328 | Float_t averageTime = 0.; | |
329 | SimulateDetectorResponse(zStrip,xStrip,geantTime,nActivatedPads,nFiredPads,isFired,nPlace,qInduced,tofAfterSimul,averageTime); | |
330 | if(nFiredPads) { | |
331 | for(Int_t indexOfPad=0; indexOfPad<nActivatedPads; indexOfPad++) { | |
332 | if(isFired[indexOfPad]){ // the pad has fired | |
333 | Float_t timediff=geantTime-tofAfterSimul[indexOfPad]; | |
334 | ||
335 | if(timediff>=0.2) nlargeTofDiff++; | |
336 | ||
b213b8bd | 337 | digit[0] = (Int_t) ((tofAfterSimul[indexOfPad]*1.e+03)/fTdcBin); // TDC bin number (each bin -> 50. ps) |
55991c8b | 338 | |
339 | Float_t landauFactor = gRandom->Landau(fAdcMean, fAdcRms); | |
340 | digit[1] = (Int_t) (qInduced[indexOfPad] * landauFactor); // ADC bins (each bin -> 0.25 (or 0.03) pC) | |
341 | ||
342 | // recalculate the volume only for neighbouring pads | |
ea7a588a | 343 | if(indexOfPad){ |
55991c8b | 344 | (nPlace[indexOfPad]<=AliTOFConstants::fgkNpadX) ? vol[4] = 1 : vol[4] = 2; |
345 | (nPlace[indexOfPad]<=AliTOFConstants::fgkNpadX) ? vol[3] = nPlace[indexOfPad] : vol[3] = nPlace[indexOfPad] - AliTOFConstants::fgkNpadX; | |
ea7a588a | 346 | } |
55991c8b | 347 | |
348 | // check if two sdigit are on the same pad; in that case we sum | |
349 | // the two or more sdigits | |
350 | if (hitMap->TestHit(vol) != kEmpty) { | |
351 | AliTOFSDigit *sdig = static_cast<AliTOFSDigit*>(hitMap->GetHit(vol)); | |
352 | Int_t tdctime = (Int_t) digit[0]; | |
353 | Int_t adccharge = (Int_t) digit[1]; | |
b213b8bd | 354 | sdig->Update(fTdcBin,tdctime,adccharge,tracknum); |
55991c8b | 355 | ntotalupdatesinEv++; |
356 | ntotalupdates++; | |
357 | } else { | |
358 | ||
359 | TOF->AddSDigit(tracknum, vol, digit); | |
360 | ||
361 | if(indexOfPad){ | |
362 | nnoisesdigits++; | |
363 | nnoisesdigitsinEv++; | |
364 | } else { | |
365 | nsignalsdigits++; | |
366 | nsignalsdigitsinEv++; | |
367 | } | |
368 | ntotalsdigitsinEv++; | |
369 | ntotalsdigits++; | |
370 | hitMap->SetHit(vol); | |
371 | } // if (hitMap->TestHit(vol) != kEmpty) | |
372 | } // if(isFired[indexOfPad]) | |
373 | } // end loop on nActivatedPads | |
374 | } // if(nFiredPads) i.e. if some pads has fired | |
375 | } // close if(!isCloneOfThePrevious) | |
376 | } // close the selection on sector and plate | |
5919c40c | 377 | } // end loop on hits for the current track |
378 | } // end loop on ntracks | |
55991c8b | 379 | |
5919c40c | 380 | delete hitMap; |
517b7f8f | 381 | |
5919c40c | 382 | gAlice->TreeS()->Reset(); |
383 | gAlice->TreeS()->Fill(); | |
ea7a588a | 384 | //gAlice->TreeS()->Write(0,TObject::kOverwrite) ; |
385 | gAlice->TreeS()->AutoSave(); | |
386 | ||
387 | if(strstr(verboseOption,"all")){ | |
388 | cout << "----------------------------------------" << endl; | |
389 | cout << " <AliTOFSDigitizer> " << endl; | |
390 | cout << "After sdigitizing " << nselectedHitsinEv << " hits" << " in event " << ievent << endl; | |
391 | //" (" << nHitsFromPrim << " from primaries and " << nHitsFromSec << " from secondaries) TOF hits, " | |
392 | cout << ntotalsdigitsinEv << " digits have been created " << endl; | |
393 | cout << "(" << nsignalsdigitsinEv << " due to signals and " << nnoisesdigitsinEv << " due to border effect)" << endl; | |
394 | cout << ntotalupdatesinEv << " total updates of the hit map have been performed in current event" << endl; | |
395 | cout << "----------------------------------------" << endl; | |
396 | } | |
397 | ||
398 | } //event loop on events | |
399 | ||
400 | // free used memory | |
401 | if (ftail){ | |
402 | delete ftail; | |
403 | ftail = 0; | |
404 | } | |
405 | ||
406 | nHitsFromSec=nselectedHits-nHitsFromPrim; | |
407 | if(strstr(verboseOption,"all")){ | |
408 | cout << "----------------------------------------" << endl; | |
409 | cout << "----------------------------------------" << endl; | |
410 | cout << "-----------SDigitization Summary--------" << endl; | |
411 | cout << " <AliTOFSDigitizer> " << endl; | |
412 | cout << "After sdigitizing " << nselectedHits << " hits" << endl; | |
413 | cout << "in " << (fEvent2-fEvent1) << " events" << endl; | |
414 | //" (" << nHitsFromPrim << " from primaries and " << nHitsFromSec << " from secondaries) TOF hits, " | |
415 | cout << ntotalsdigits << " sdigits have been created " << endl; | |
416 | cout << "(" << nsignalsdigits << " due to signals and " << nnoisesdigits << " due to border effect)" << endl; | |
417 | cout << ntotalupdates << " total updates of the hit map have been performed" << endl; | |
418 | cout << "in " << nlargeTofDiff << " cases the time of flight difference is greater than 200 ps" << endl; | |
419 | } | |
420 | ||
517b7f8f | 421 | |
ea7a588a | 422 | if(strstr(verboseOption,"tim") || strstr(verboseOption,"all")){ |
423 | gBenchmark->Stop("TOFSDigitizer"); | |
424 | cout << "AliTOFSDigitizer:" << endl ; | |
425 | cout << " took " << gBenchmark->GetCpuTime("TOFSDigitizer") << " seconds in order to make sdigits " | |
426 | << gBenchmark->GetCpuTime("TOFSDigitizer")/(fEvent2-fEvent1) << " seconds per event " << endl ; | |
427 | cout << endl ; | |
428 | } | |
517b7f8f | 429 | |
ea7a588a | 430 | Print(""); |
517b7f8f | 431 | } |
ea7a588a | 432 | |
517b7f8f | 433 | //__________________________________________________________________ |
ea7a588a | 434 | void AliTOFSDigitizer::Print(Option_t* opt)const |
517b7f8f | 435 | { |
436 | cout << "------------------- "<< GetName() << " -------------" << endl ; | |
bfec09a6 | 437 | |
517b7f8f | 438 | } |
f73548c4 | 439 | |
55991c8b | 440 | //__________________________________________________________________ |
441 | void AliTOFSDigitizer::SelectSectorAndPlate(Int_t sector, Int_t plate) | |
442 | { | |
443 | Bool_t isaWrongSelection=(sector < 1) || (sector > AliTOFConstants::fgkNSectors) || (plate < 1) || (plate > AliTOFConstants::fgkNPlates); | |
444 | if(isaWrongSelection){ | |
445 | cout << "You have selected an invalid value for sector or plate " << endl; | |
446 | cout << "The correct range for sector is [1,"<< AliTOFConstants::fgkNSectors <<"]" << endl; | |
447 | cout << "The correct range for plate is [1,"<< AliTOFConstants::fgkNPlates <<"]" << endl; | |
448 | cout << "By default we continue sdigitizing all hits in all plates of all sectors" << endl; | |
449 | } else { | |
450 | fSelectedSector=sector; | |
451 | fSelectedPlate =plate; | |
452 | cout << "SDigitizing only hits in plate " << fSelectedPlate << " of the sector " << fSelectedSector << endl; | |
453 | } | |
454 | } | |
455 | ||
f73548c4 | 456 | //__________________________________________________________________ |
457 | void AliTOFSDigitizer::SimulateDetectorResponse(Float_t z0, Float_t x0, Float_t geantTime, Int_t& nActivatedPads, Int_t& nFiredPads, Bool_t* isFired, Int_t* nPlace, Float_t* qInduced, Float_t* tofTime, Float_t& averageTime) | |
458 | { | |
459 | // Description: | |
460 | // Input: z0, x0 - hit position in the strip system (0,0 - center of the strip), cm | |
461 | // geantTime - time generated by Geant, ns | |
462 | // Output: nActivatedPads - the number of pads activated by the hit (1 || 2 || 4) | |
463 | // nFiredPads - the number of pads fired (really activated) by the hit (nFiredPads <= nActivatedPads) | |
464 | // qInduced[iPad]- charge induced on pad, arb. units | |
465 | // this array is initialized at zero by the caller | |
466 | // tofAfterSimul[iPad] - time calculated with edge effect algorithm, ns | |
467 | // this array is initialized at zero by the caller | |
468 | // averageTime - time given by pad hited by the Geant track taking into account the times (weighted) given by the pads fired for edge effect also. | |
469 | // The weight is given by the qInduced[iPad]/qCenterPad | |
470 | // this variable is initialized at zero by the caller | |
471 | // nPlace[iPad] - the number of the pad place, iPad = 0, 1, 2, 3 | |
472 | // this variable is initialized at zero by the caller | |
473 | // | |
474 | // Description of used variables: | |
475 | // eff[iPad] - efficiency of the pad | |
476 | // res[iPad] - resolution of the pad, ns | |
477 | // timeWalk[iPad] - time walk of the pad, ns | |
478 | // timeDelay[iPad] - time delay for neighbouring pad to hited pad, ns | |
479 | // PadId[iPad] - Pad Identifier | |
480 | // E | F --> PadId[iPad] = 5 | 6 | |
481 | // A | B --> PadId[iPad] = 1 | 2 | |
482 | // C | D --> PadId[iPad] = 3 | 4 | |
483 | // nTail[iPad] - the tail number, = 1 for tailA, = 2 for tailB | |
484 | // qCenterPad - charge extimated for each pad, arb. units | |
485 | // weightsSum - sum of weights extimated for each pad fired, arb. units | |
486 | ||
487 | const Float_t kSigmaForTail[2] = {AliTOFConstants::fgkSigmaForTail1,AliTOFConstants::fgkSigmaForTail2}; //for tail | |
488 | Int_t iz = 0, ix = 0; | |
489 | Float_t dX = 0., dZ = 0., x = 0., z = 0.; | |
490 | Float_t h = fHparameter, h2 = fH2parameter, k = fKparameter, k2 = fK2parameter; | |
491 | Float_t effX = 0., effZ = 0., resX = 0., resZ = 0., timeWalkX = 0., timeWalkZ = 0.; | |
492 | Float_t logOfqInd = 0.; | |
493 | Float_t weightsSum = 0.; | |
494 | Int_t nTail[4] = {0,0,0,0}; | |
495 | Int_t padId[4] = {0,0,0,0}; | |
496 | Float_t eff[4] = {0.,0.,0.,0.}; | |
497 | Float_t res[4] = {0.,0.,0.,0.}; | |
498 | // Float_t qCenterPad = fMinimumCharge * fMinimumCharge; | |
499 | Float_t qCenterPad = 1.; | |
500 | Float_t timeWalk[4] = {0.,0.,0.,0.}; | |
501 | Float_t timeDelay[4] = {0.,0.,0.,0.}; | |
502 | ||
503 | nActivatedPads = 0; | |
504 | nFiredPads = 0; | |
505 | ||
506 | (z0 <= 0) ? iz = 0 : iz = 1; | |
507 | dZ = z0 + (0.5 * AliTOFConstants::fgkNpadZ - iz - 0.5) * AliTOFConstants::fgkZPad; // hit position in the pad frame, (0,0) - center of the pad | |
508 | z = 0.5 * AliTOFConstants::fgkZPad - TMath::Abs(dZ); // variable for eff., res. and timeWalk. functions | |
509 | iz++; // z row: 1, ..., AliTOFConstants::fgkNpadZ = 2 | |
510 | ix = (Int_t)((x0 + 0.5 * AliTOFConstants::fgkNpadX * AliTOFConstants::fgkXPad) / AliTOFConstants::fgkXPad); | |
511 | dX = x0 + (0.5 * AliTOFConstants::fgkNpadX - ix - 0.5) * AliTOFConstants::fgkXPad; // hit position in the pad frame, (0,0) - center of the pad | |
512 | x = 0.5 * AliTOFConstants::fgkXPad - TMath::Abs(dX); // variable for eff., res. and timeWalk. functions; | |
513 | ix++; // x row: 1, ..., AliTOFConstants::fgkNpadX = 48 | |
514 | ||
515 | ////// Pad A: | |
516 | nActivatedPads++; | |
517 | nPlace[nActivatedPads-1] = (iz - 1) * AliTOFConstants::fgkNpadX + ix; | |
518 | qInduced[nActivatedPads-1] = qCenterPad; | |
519 | padId[nActivatedPads-1] = 1; | |
520 | ||
521 | if (fEdgeEffect == 0) { | |
522 | eff[nActivatedPads-1] = fEffCenter; | |
523 | if (gRandom->Rndm() < eff[nActivatedPads-1]) { | |
524 | nFiredPads = 1; | |
525 | res[nActivatedPads-1] = 0.001 * TMath::Sqrt(10400 + fResCenter * fResCenter); // 10400=30^2+20^2+40^2+50^2+50^2+50^2 ns; | |
526 | isFired[nActivatedPads-1] = kTRUE; | |
527 | tofTime[nActivatedPads-1] = gRandom->Gaus(geantTime + fTimeWalkCenter, res[0]); | |
528 | averageTime = tofTime[nActivatedPads-1]; | |
529 | } | |
530 | } else { | |
531 | ||
532 | if(z < h) { | |
533 | if(z < h2) { | |
534 | effZ = fEffBoundary + (fEff2Boundary - fEffBoundary) * z / h2; | |
535 | } else { | |
536 | effZ = fEff2Boundary + (fEffCenter - fEff2Boundary) * (z - h2) / (h - h2); | |
537 | } | |
538 | resZ = fResBoundary + (fResCenter - fResBoundary) * z / h; | |
539 | timeWalkZ = fTimeWalkBoundary + (fTimeWalkCenter - fTimeWalkBoundary) * z / h; | |
540 | nTail[nActivatedPads-1] = 1; | |
541 | } else { | |
542 | effZ = fEffCenter; | |
543 | resZ = fResCenter; | |
544 | timeWalkZ = fTimeWalkCenter; | |
545 | } | |
546 | ||
547 | if(x < h) { | |
548 | if(x < h2) { | |
549 | effX = fEffBoundary + (fEff2Boundary - fEffBoundary) * x / h2; | |
550 | } else { | |
551 | effX = fEff2Boundary + (fEffCenter - fEff2Boundary) * (x - h2) / (h - h2); | |
552 | } | |
553 | resX = fResBoundary + (fResCenter - fResBoundary) * x / h; | |
554 | timeWalkX = fTimeWalkBoundary + (fTimeWalkCenter - fTimeWalkBoundary) * x / h; | |
555 | nTail[nActivatedPads-1] = 1; | |
556 | } else { | |
557 | effX = fEffCenter; | |
558 | resX = fResCenter; | |
559 | timeWalkX = fTimeWalkCenter; | |
560 | } | |
561 | ||
562 | (effZ<effX) ? eff[nActivatedPads-1] = effZ : eff[nActivatedPads-1] = effX; | |
563 | (resZ<resX) ? res[nActivatedPads-1] = 0.001 * TMath::Sqrt(10400 + resX * resX) : res[nActivatedPads-1] = 0.001 * TMath::Sqrt(10400 + resZ * resZ); // 10400=30^2+20^2+40^2+50^2+50^2+50^2 ns | |
564 | (timeWalkZ<timeWalkX) ? timeWalk[nActivatedPads-1] = 0.001 * timeWalkZ : timeWalk[nActivatedPads-1] = 0.001 * timeWalkX; // ns | |
565 | ||
566 | ||
567 | ////// Pad B: | |
568 | if(z < k2) { | |
569 | effZ = fEffBoundary - (fEffBoundary - fEff3Boundary) * (z / k2); | |
570 | } else { | |
571 | effZ = fEff3Boundary * (k - z) / (k - k2); | |
572 | } | |
573 | resZ = fResBoundary + fResSlope * z / k; | |
574 | timeWalkZ = fTimeWalkBoundary + fTimeWalkSlope * z / k; | |
575 | ||
576 | if(z < k && z > 0) { | |
577 | if( (iz == 1 && dZ > 0) || (iz == 2 && dZ < 0) ) { | |
578 | nActivatedPads++; | |
579 | nPlace[nActivatedPads-1] = nPlace[0] + (3 - 2 * iz) * AliTOFConstants::fgkNpadX; | |
580 | eff[nActivatedPads-1] = effZ; | |
581 | res[nActivatedPads-1] = 0.001 * TMath::Sqrt(10400 + resZ * resZ); // 10400=30^2+20^2+40^2+50^2+50^2+50^2 ns | |
582 | timeWalk[nActivatedPads-1] = 0.001 * timeWalkZ; // ns | |
583 | nTail[nActivatedPads-1] = 2; | |
584 | if (fTimeDelayFlag) { | |
585 | // qInduced[0] = fMinimumCharge * TMath::Exp(fPulseHeightSlope * z / 2.); | |
586 | // qInduced[nActivatedPads-1] = fMinimumCharge * TMath::Exp(-fPulseHeightSlope * z / 2.); | |
587 | qInduced[nActivatedPads-1] = TMath::Exp(-fPulseHeightSlope * z); | |
588 | logOfqInd = gRandom->Gaus(-fPulseHeightSlope * z, fLogChargeSmearing); | |
589 | timeDelay[nActivatedPads-1] = gRandom->Gaus(-fTimeDelaySlope * logOfqInd, fTimeSmearing); | |
590 | } else { | |
591 | timeDelay[nActivatedPads-1] = 0.; | |
592 | } | |
593 | padId[nActivatedPads-1] = 2; | |
594 | } | |
595 | } | |
596 | ||
597 | ||
598 | ////// Pad C, D, E, F: | |
599 | if(x < k2) { | |
600 | effX = fEffBoundary - (fEffBoundary - fEff3Boundary) * (x / k2); | |
601 | } else { | |
602 | effX = fEff3Boundary * (k - x) / (k - k2); | |
603 | } | |
604 | resX = fResBoundary + fResSlope*x/k; | |
605 | timeWalkX = fTimeWalkBoundary + fTimeWalkSlope*x/k; | |
606 | ||
607 | if(x < k && x > 0) { | |
608 | // C: | |
609 | if(ix > 1 && dX < 0) { | |
610 | nActivatedPads++; | |
611 | nPlace[nActivatedPads-1] = nPlace[0] - 1; | |
612 | eff[nActivatedPads-1] = effX; | |
613 | res[nActivatedPads-1] = 0.001 * TMath::Sqrt(10400 + resX * resX); // 10400=30^2+20^2+40^2+50^2+50^2+50^2 ns | |
614 | timeWalk[nActivatedPads-1] = 0.001 * timeWalkX; // ns | |
615 | nTail[nActivatedPads-1] = 2; | |
616 | if (fTimeDelayFlag) { | |
617 | // qInduced[0] = fMinimumCharge * TMath::Exp(fPulseHeightSlope * x / 2.); | |
618 | // qInduced[nActivatedPads-1] = fMinimumCharge * TMath::Exp(-fPulseHeightSlope * x / 2.); | |
619 | qInduced[nActivatedPads-1] = TMath::Exp(-fPulseHeightSlope * x); | |
620 | logOfqInd = gRandom->Gaus(-fPulseHeightSlope * x, fLogChargeSmearing); | |
621 | timeDelay[nActivatedPads-1] = gRandom->Gaus(-fTimeDelaySlope * logOfqInd, fTimeSmearing); | |
622 | } else { | |
623 | timeDelay[nActivatedPads-1] = 0.; | |
624 | } | |
625 | padId[nActivatedPads-1] = 3; | |
626 | ||
627 | // D: | |
628 | if(z < k && z > 0) { | |
629 | if( (iz == 1 && dZ > 0) || (iz == 2 && dZ < 0) ) { | |
630 | nActivatedPads++; | |
631 | nPlace[nActivatedPads-1] = nPlace[0] + (3 - 2 * iz) * AliTOFConstants::fgkNpadX - 1; | |
632 | eff[nActivatedPads-1] = effX * effZ; | |
633 | (resZ<resX) ? res[nActivatedPads-1] = 0.001 * TMath::Sqrt(10400 + resX * resX) : res[nActivatedPads-1] = 0.001 * TMath::Sqrt(10400 + resZ * resZ); // 10400=30^2+20^2+40^2+50^2+50^2+50^2 ns | |
634 | (timeWalkZ<timeWalkX) ? timeWalk[nActivatedPads-1] = 0.001 * timeWalkZ : timeWalk[nActivatedPads-1] = 0.001 * timeWalkX; // ns | |
635 | ||
636 | nTail[nActivatedPads-1] = 2; | |
637 | if (fTimeDelayFlag) { | |
638 | if (TMath::Abs(x) < TMath::Abs(z)) { | |
639 | // qInduced[0] = fMinimumCharge * TMath::Exp(fPulseHeightSlope * z / 2.); | |
640 | // qInduced[nActivatedPads-1] = fMinimumCharge * TMath::Exp(-fPulseHeightSlope * z / 2.); | |
641 | qInduced[nActivatedPads-1] = TMath::Exp(-fPulseHeightSlope * z); | |
642 | logOfqInd = gRandom->Gaus(-fPulseHeightSlope * z, fLogChargeSmearing); | |
643 | } else { | |
644 | // qInduced[0] = fMinimumCharge * TMath::Exp(fPulseHeightSlope * x / 2.); | |
645 | // qInduced[nActivatedPads-1] = fMinimumCharge * TMath::Exp(-fPulseHeightSlope * x / 2.); | |
646 | qInduced[nActivatedPads-1] = TMath::Exp(-fPulseHeightSlope * x); | |
647 | logOfqInd = gRandom->Gaus(-fPulseHeightSlope * x, fLogChargeSmearing); | |
648 | } | |
649 | timeDelay[nActivatedPads-1] = gRandom->Gaus(-fTimeDelaySlope * logOfqInd, fTimeSmearing); | |
650 | } else { | |
651 | timeDelay[nActivatedPads-1] = 0.; | |
652 | } | |
653 | padId[nActivatedPads-1] = 4; | |
654 | } | |
655 | } // end D | |
656 | } // end C | |
657 | ||
658 | // E: | |
659 | if(ix < AliTOFConstants::fgkNpadX && dX > 0) { | |
660 | nActivatedPads++; | |
661 | nPlace[nActivatedPads-1] = nPlace[0] + 1; | |
662 | eff[nActivatedPads-1] = effX; | |
663 | res[nActivatedPads-1] = 0.001 * (TMath::Sqrt(10400 + resX * resX)); // ns | |
664 | timeWalk[nActivatedPads-1] = 0.001 * timeWalkX; // ns | |
665 | nTail[nActivatedPads-1] = 2; | |
666 | if (fTimeDelayFlag) { | |
667 | // qInduced[0] = fMinimumCharge * TMath::Exp(fPulseHeightSlope * x / 2.); | |
668 | // qInduced[nActivatedPads-1] = fMinimumCharge * TMath::Exp(-fPulseHeightSlope * x / 2.); | |
669 | qInduced[nActivatedPads-1] = TMath::Exp(-fPulseHeightSlope * x); | |
670 | logOfqInd = gRandom->Gaus(-fPulseHeightSlope * x, fLogChargeSmearing); | |
671 | timeDelay[nActivatedPads-1] = gRandom->Gaus(-fTimeDelaySlope * logOfqInd, fTimeSmearing); | |
672 | } else { | |
673 | timeDelay[nActivatedPads-1] = 0.; | |
674 | } | |
675 | padId[nActivatedPads-1] = 5; | |
676 | ||
677 | ||
678 | // F: | |
679 | if(z < k && z > 0) { | |
680 | if( (iz == 1 && dZ > 0) || (iz == 2 && dZ < 0) ) { | |
681 | nActivatedPads++; | |
682 | nPlace[nActivatedPads - 1] = nPlace[0] + (3 - 2 * iz) * AliTOFConstants::fgkNpadX + 1; | |
683 | eff[nActivatedPads - 1] = effX * effZ; | |
684 | (resZ<resX) ? res[nActivatedPads-1] = 0.001 * TMath::Sqrt(10400 + resX * resX) : res[nActivatedPads-1] = 0.001 * TMath::Sqrt(10400 + resZ * resZ); // 10400=30^2+20^2+40^2+50^2+50^2+50^2 ns | |
685 | (timeWalkZ<timeWalkX) ? timeWalk[nActivatedPads-1] = 0.001 * timeWalkZ : timeWalk[nActivatedPads-1] = 0.001*timeWalkX; // ns | |
686 | nTail[nActivatedPads-1] = 2; | |
687 | if (fTimeDelayFlag) { | |
688 | if (TMath::Abs(x) < TMath::Abs(z)) { | |
689 | // qInduced[0] = fMinimumCharge * TMath::Exp(fPulseHeightSlope * z / 2.); | |
690 | // qInduced[nActivatedPads-1] = fMinimumCharge * TMath::Exp(-fPulseHeightSlope * z / 2.); | |
691 | qInduced[nActivatedPads-1] = TMath::Exp(-fPulseHeightSlope * z); | |
692 | logOfqInd = gRandom->Gaus(-fPulseHeightSlope * z, fLogChargeSmearing); | |
693 | } else { | |
694 | // qInduced[0] = fMinimumCharge * TMath::Exp(fPulseHeightSlope * x / 2.); | |
695 | // qInduced[nActivatedPads-1] = fMinimumCharge * TMath::Exp(-fPulseHeightSlope * x / 2.); | |
696 | qInduced[nActivatedPads-1] = TMath::Exp(-fPulseHeightSlope * x); | |
697 | logOfqInd = gRandom->Gaus(-fPulseHeightSlope * x, fLogChargeSmearing); | |
698 | } | |
699 | timeDelay[nActivatedPads-1] = gRandom->Gaus(-fTimeDelaySlope * logOfqInd, fTimeSmearing); | |
700 | } else { | |
701 | timeDelay[nActivatedPads-1] = 0.; | |
702 | } | |
703 | padId[nActivatedPads-1] = 6; | |
704 | } | |
705 | } // end F | |
706 | } // end E | |
707 | } // end if(x < k) | |
708 | ||
709 | ||
710 | for (Int_t iPad = 0; iPad < nActivatedPads; iPad++) { | |
711 | if (res[iPad] < fTimeResolution) res[iPad] = fTimeResolution; | |
712 | if(gRandom->Rndm() < eff[iPad]) { | |
713 | isFired[iPad] = kTRUE; | |
714 | nFiredPads++; | |
715 | if(fEdgeTails) { | |
716 | if(nTail[iPad] == 0) { | |
717 | tofTime[iPad] = gRandom->Gaus(geantTime + timeWalk[iPad] + timeDelay[iPad], res[iPad]); | |
718 | } else { | |
719 | ftail->SetParameters(res[iPad], 2. * res[iPad], kSigmaForTail[nTail[iPad]-1]); | |
720 | Double_t timeAB = ftail->GetRandom(); | |
721 | tofTime[iPad] = geantTime + timeWalk[iPad] + timeDelay[iPad] + timeAB; | |
722 | } | |
723 | } else { | |
724 | tofTime[iPad] = gRandom->Gaus(geantTime + timeWalk[iPad] + timeDelay[iPad], res[iPad]); | |
725 | } | |
726 | if (fAverageTimeFlag) { | |
727 | averageTime += tofTime[iPad] * qInduced[iPad]; | |
728 | weightsSum += qInduced[iPad]; | |
729 | } else { | |
730 | averageTime += tofTime[iPad]; | |
731 | weightsSum += 1.; | |
732 | } | |
733 | } | |
734 | } | |
735 | if (weightsSum!=0) averageTime /= weightsSum; | |
736 | } // end else (fEdgeEffect != 0) | |
737 | } | |
738 | ||
739 | //__________________________________________________________________ | |
740 | void AliTOFSDigitizer::PrintParameters()const | |
741 | { | |
742 | // | |
743 | // Print parameters used for sdigitization | |
744 | // | |
745 | cout << " ------------------- "<< GetName() << " -------------" << endl ; | |
746 | cout << " Parameters used for TOF SDigitization " << endl ; | |
747 | // Printing the parameters | |
748 | ||
ea7a588a | 749 | cout << " Number of events: " << (fEvent2-fEvent1) << endl; |
750 | cout << " from event " << fEvent1 << " to event " << (fEvent2-1) << endl; | |
f73548c4 | 751 | cout << " Time Resolution (ns) "<< fTimeResolution <<" Pad Efficiency: "<< fpadefficiency << endl; |
752 | cout << " Edge Effect option: "<< fEdgeEffect<< endl; | |
753 | ||
754 | cout << " Boundary Effect Simulation Parameters " << endl; | |
755 | cout << " Hparameter: "<< fHparameter<<" H2parameter:"<< fH2parameter <<" Kparameter:"<< fKparameter<<" K2parameter: "<< fK2parameter << endl; | |
756 | cout << " Efficiency in the central region of the pad: "<< fEffCenter << endl; | |
757 | cout << " Efficiency at the boundary region of the pad: "<< fEffBoundary << endl; | |
758 | cout << " Efficiency value at H2parameter "<< fEff2Boundary << endl; | |
759 | cout << " Efficiency value at K2parameter "<< fEff3Boundary << endl; | |
760 | cout << " Resolution (ps) in the central region of the pad: "<< fResCenter << endl; | |
761 | cout << " Resolution (ps) at the boundary of the pad : "<< fResBoundary << endl; | |
762 | cout << " Slope (ps/K) for neighbouring pad : "<< fResSlope <<endl; | |
763 | cout << " Time walk (ps) in the central region of the pad : "<< fTimeWalkCenter << endl; | |
764 | cout << " Time walk (ps) at the boundary of the pad : "<< fTimeWalkBoundary<< endl; | |
765 | cout << " Slope (ps/K) for neighbouring pad : "<< fTimeWalkSlope<<endl; | |
766 | cout << " Pulse Heigth Simulation Parameters " << endl; | |
767 | cout << " Flag for delay due to the PulseHeightEffect: "<< fTimeDelayFlag <<endl; | |
768 | cout << " Pulse Height Slope : "<< fPulseHeightSlope<<endl; | |
769 | cout << " Time Delay Slope : "<< fTimeDelaySlope<<endl; | |
770 | cout << " Minimum charge amount which could be induced : "<< fMinimumCharge<<endl; | |
771 | cout << " Smearing in charge in (q1/q2) vs x plot : "<< fChargeSmearing<<endl; | |
772 | cout << " Smearing in log of charge ratio : "<< fLogChargeSmearing<<endl; | |
773 | cout << " Smearing in time in time vs log(q1/q2) plot : "<< fTimeSmearing<<endl; | |
774 | cout << " Flag for average time : "<< fAverageTimeFlag<<endl; | |
775 | cout << " Edge tails option : "<< fEdgeTails << endl; | |
776 | ||
777 | } |