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8309c1ab | 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 | /* $Id$ */ | |
17 | ||
18 | /////////////////////////////////////////////////////////////////////////////// | |
19 | // // | |
20 | // ZDC digitizer class // | |
21 | // // | |
22 | /////////////////////////////////////////////////////////////////////////////// | |
23 | ||
24 | #include <stdlib.h> | |
25 | ||
26 | // --- ROOT system | |
27 | #include <TTree.h> | |
28 | #include <TFile.h> | |
29 | #include <TNtuple.h> | |
30 | #include <TRandom.h> | |
31 | ||
32 | // --- AliRoot header files | |
8309c1ab | 33 | #include "AliRun.h" |
34 | #include "AliHeader.h" | |
35 | #include "AliGenHijingEventHeader.h" | |
07e38cef | 36 | #include "AliGenCocktailEventHeader.h" |
f21fc003 | 37 | #include "AliDigitizationInput.h" |
8309c1ab | 38 | #include "AliRunLoader.h" |
c93255fe | 39 | #include "AliLoader.h" |
12434381 | 40 | #include "AliGRPObject.h" |
78d18275 | 41 | #include "AliCDBManager.h" |
48642b09 | 42 | #include "AliCDBEntry.h" |
8309c1ab | 43 | #include "AliZDCSDigit.h" |
44 | #include "AliZDCDigit.h" | |
45 | #include "AliZDCFragment.h" | |
a18a0543 | 46 | #include "AliZDCv3.h" |
8309c1ab | 47 | #include "AliZDCDigitizer.h" |
8a2624cc | 48 | |
49 | class AliCDBStorage; | |
6024ec85 | 50 | class AliZDCPedestals; |
8309c1ab | 51 | |
52 | ClassImp(AliZDCDigitizer) | |
53 | ||
54 | ||
55 | //____________________________________________________________________________ | |
a718c993 | 56 | AliZDCDigitizer::AliZDCDigitizer() : |
57 | fIsCalibration(0), | |
fd9afd60 | 58 | fIsSignalInADCGate(kFALSE), |
59 | fFracLostSignal(0.), | |
a718c993 | 60 | fPedData(0), |
2d9c70ab | 61 | fSpectators2Track(kFALSE), |
f2e2aa97 | 62 | fBeamEnergy(0.), |
5d24ec95 | 63 | fBeamType(""), |
64 | fIspASystem(kFALSE), | |
65 | fIsRELDISgen(kFALSE) | |
8309c1ab | 66 | { |
698e394d | 67 | // Default constructor |
83534754 | 68 | for(Int_t i=0; i<2; i++) fADCRes[i]=0.; |
8309c1ab | 69 | } |
70 | ||
71 | //____________________________________________________________________________ | |
f21fc003 | 72 | AliZDCDigitizer::AliZDCDigitizer(AliDigitizationInput* digInput): |
73 | AliDigitizer(digInput), | |
a718c993 | 74 | fIsCalibration(0), //By default the simulation doesn't create calib. data |
fd9afd60 | 75 | fIsSignalInADCGate(kFALSE), |
76 | fFracLostSignal(0.), | |
a718c993 | 77 | fPedData(GetPedData()), |
2d9c70ab | 78 | fSpectators2Track(kFALSE), |
f2e2aa97 | 79 | fBeamEnergy(0.), |
5d24ec95 | 80 | fBeamType(""), |
81 | fIspASystem(kFALSE), | |
82 | fIsRELDISgen(kFALSE) | |
8309c1ab | 83 | { |
78d18275 | 84 | // Get calibration data |
d27e20dd | 85 | if(fIsCalibration!=0) printf("\n\t AliZDCDigitizer -> Creating calibration data (pedestals)\n"); |
edb4e893 | 86 | for(Int_t i=0; i<5; i++){ |
698e394d | 87 | for(Int_t j=0; j<5; j++) |
88 | fPMGain[i][j] = 0.; | |
89 | } | |
8309c1ab | 90 | } |
91 | ||
92 | //____________________________________________________________________________ | |
93 | AliZDCDigitizer::~AliZDCDigitizer() | |
94 | { | |
95 | // Destructor | |
a718c993 | 96 | // Not implemented |
8309c1ab | 97 | } |
98 | ||
99 | ||
cc2abffd | 100 | //____________________________________________________________________________ |
101 | AliZDCDigitizer::AliZDCDigitizer(const AliZDCDigitizer &digitizer): | |
a718c993 | 102 | AliDigitizer(), |
103 | fIsCalibration(digitizer.fIsCalibration), | |
fd9afd60 | 104 | fIsSignalInADCGate(digitizer.fIsSignalInADCGate), |
105 | fFracLostSignal(digitizer.fFracLostSignal), | |
a718c993 | 106 | fPedData(digitizer.fPedData), |
2d9c70ab | 107 | fSpectators2Track(digitizer.fSpectators2Track), |
f2e2aa97 | 108 | fBeamEnergy(digitizer.fBeamEnergy), |
5d24ec95 | 109 | fBeamType(digitizer.fBeamType), |
110 | fIspASystem(digitizer.fIspASystem), | |
111 | fIsRELDISgen(digitizer.fIsRELDISgen) | |
cc2abffd | 112 | { |
113 | // Copy constructor | |
114 | ||
edb4e893 | 115 | for(Int_t i=0; i<5; i++){ |
cc2abffd | 116 | for(Int_t j=0; j<5; j++){ |
117 | fPMGain[i][j] = digitizer.fPMGain[i][j]; | |
118 | } | |
119 | } | |
120 | for(Int_t i=0; i<2; i++) fADCRes[i] = digitizer.fADCRes[i]; | |
cc2abffd | 121 | |
12434381 | 122 | |
cc2abffd | 123 | } |
124 | ||
8309c1ab | 125 | //____________________________________________________________________________ |
126 | Bool_t AliZDCDigitizer::Init() | |
127 | { | |
48642b09 | 128 | // Initialize the digitizer |
12434381 | 129 | |
5d24ec95 | 130 | |
131 | //printf(" **** Initializing AliZDCDigitizer fBeamEnergy = %1.0f GeV\n\n", fBeamEnergy); | |
12434381 | 132 | AliCDBEntry* entry = AliCDBManager::Instance()->Get("GRP/GRP/Data"); |
83534754 | 133 | if(!entry) AliFatal("No calibration data loaded!"); |
12434381 | 134 | AliGRPObject* grpData = 0x0; |
135 | if(entry){ | |
136 | TMap* m = dynamic_cast<TMap*>(entry->GetObject()); // old GRP entry | |
137 | if(m){ | |
138 | //m->Print(); | |
139 | grpData = new AliGRPObject(); | |
140 | grpData->ReadValuesFromMap(m); | |
141 | } | |
142 | else{ | |
143 | grpData = dynamic_cast<AliGRPObject*>(entry->GetObject()); // new GRP entry | |
144 | } | |
145 | entry->SetOwner(0); | |
146 | AliCDBManager::Instance()->UnloadFromCache("GRP/GRP/Data"); | |
147 | } | |
83534754 | 148 | if(!grpData){ |
149 | AliError("No GRP entry found in OCDB! \n "); | |
150 | return kFALSE; | |
151 | } | |
12434381 | 152 | |
5d24ec95 | 153 | fBeamType = grpData->GetBeamType(); |
154 | if(fBeamType==AliGRPObject::GetInvalidString()){ | |
12434381 | 155 | AliError("\t UNKNOWN beam type from GRP obj -> PMT gains not set in ZDC digitizer!!!\n"); |
156 | } | |
157 | ||
5d24ec95 | 158 | // If beam energy is not set from Config.C (RELDIS / spectator generators) |
159 | if(fBeamEnergy<0.01){ | |
160 | fBeamEnergy = grpData->GetBeamEnergy(); | |
161 | if(fBeamEnergy==AliGRPObject::GetInvalidFloat()){ | |
162 | AliWarning("GRP/GRP/Data entry: missing value for the beam energy ! Using 0."); | |
163 | AliError("\t UNKNOWN beam type from GRP obj -> PMT gains not set in ZDC digitizer!!!\n"); | |
164 | fBeamEnergy = 0.; | |
a736fd93 | 165 | } |
12434381 | 166 | } |
f2e2aa97 | 167 | |
168 | if(fIspASystem){ | |
5d24ec95 | 169 | fBeamType = "p-A"; |
170 | AliInfo(" AliZDCDigitizer -> Manually setting beam type to p-A\n"); | |
f2e2aa97 | 171 | } |
5d24ec95 | 172 | |
173 | // Setting beam type for spectator generator and RELDIS generator | |
174 | if(((fBeamType.CompareTo("UNKNOWN")) == 0) || fIsRELDISgen){ | |
175 | fBeamType = "A-A"; | |
176 | AliInfo(" AliZDCDigitizer -> Manually setting beam type to A-A\n"); | |
177 | } | |
178 | printf("\t AliZDCDigitizer -> beam type %s - beam energy = %f GeV\n", fBeamType.Data(), fBeamEnergy); | |
179 | ||
180 | CalculatePMTGains(); | |
181 | ||
698e394d | 182 | // ADC Caen V965 |
7f73eb6b | 183 | fADCRes[0] = 0.0000008; // ADC Resolution high gain: 200 fC/adcCh |
184 | fADCRes[1] = 0.0000064; // ADC Resolution low gain: 25 fC/adcCh | |
8309c1ab | 185 | |
186 | return kTRUE; | |
187 | } | |
188 | ||
189 | //____________________________________________________________________________ | |
f21fc003 | 190 | void AliZDCDigitizer::Digitize(Option_t* /*option*/) |
8309c1ab | 191 | { |
48642b09 | 192 | // Execute digitization |
8309c1ab | 193 | |
d79f8d50 | 194 | // ------------------------------------------------------------ |
f91d1e35 | 195 | // !!! 2nd ZDC set added |
196 | // *** 1st 3 arrays are digits from REAL (simulated) hits | |
197 | // *** last 2 are copied from simulated digits | |
fd9afd60 | 198 | // --- pm[0][...] = light in ZN side C [C, Q1, Q2, Q3, Q4] |
199 | // --- pm[1][...] = light in ZP side C [C, Q1, Q2, Q3, Q4] | |
48642b09 | 200 | // --- pm[2][...] = light in ZEM [x, 1, 2, x, x] |
fd9afd60 | 201 | // --- pm[3][...] = light in ZN side A [C, Q1, Q2, Q3, Q4] ->NEW! |
202 | // --- pm[4][...] = light in ZP side A [C, Q1, Q2, Q3, Q4] ->NEW! | |
d79f8d50 | 203 | // ------------------------------------------------------------ |
204 | Float_t pm[5][5]; | |
8574b308 | 205 | for(Int_t iSector1=0; iSector1<5; iSector1++) |
206 | for(Int_t iSector2=0; iSector2<5; iSector2++){ | |
8309c1ab | 207 | pm[iSector1][iSector2] = 0; |
208 | } | |
d79f8d50 | 209 | |
210 | // ------------------------------------------------------------ | |
211 | // ### Out of time ADC added (22 channels) | |
212 | // --- same codification as for signal PTMs (see above) | |
213 | // ------------------------------------------------------------ | |
214 | Float_t pmoot[5][5]; | |
8574b308 | 215 | for(Int_t iSector1=0; iSector1<5; iSector1++) |
216 | for(Int_t iSector2=0; iSector2<5; iSector2++){ | |
d79f8d50 | 217 | pmoot[iSector1][iSector2] = 0; |
218 | } | |
8309c1ab | 219 | |
220 | // impact parameter and number of spectators | |
131b5d31 | 221 | Float_t impPar = 0; |
fd9afd60 | 222 | Int_t specNTarg = 0, specPTarg = 0; |
223 | Int_t specNProj = 0, specPProj = 0; | |
a18a0543 | 224 | Float_t signalTime0 = 0.; |
8309c1ab | 225 | |
226 | // loop over input streams | |
f21fc003 | 227 | for(Int_t iInput = 0; iInput<fDigInput->GetNinputs(); iInput++){ |
8309c1ab | 228 | |
229 | // get run loader and ZDC loader | |
230 | AliRunLoader* runLoader = | |
f21fc003 | 231 | AliRunLoader::GetRunLoader(fDigInput->GetInputFolderName(iInput)); |
8309c1ab | 232 | AliLoader* loader = runLoader->GetLoader("ZDCLoader"); |
8574b308 | 233 | if(!loader) continue; |
8309c1ab | 234 | |
235 | // load sdigits | |
236 | loader->LoadSDigits(); | |
237 | TTree* treeS = loader->TreeS(); | |
8574b308 | 238 | if(!treeS) continue; |
8309c1ab | 239 | AliZDCSDigit sdigit; |
240 | AliZDCSDigit* psdigit = &sdigit; | |
241 | treeS->SetBranchAddress("ZDC", &psdigit); | |
242 | ||
243 | // loop over sdigits | |
8574b308 | 244 | for(Int_t iSDigit=0; iSDigit<treeS->GetEntries(); iSDigit++){ |
8309c1ab | 245 | treeS->GetEntry(iSDigit); |
7f73eb6b | 246 | // |
8574b308 | 247 | if(!psdigit) continue; |
248 | if((sdigit.GetSector(1) < 0) || (sdigit.GetSector(1) > 4)){ | |
8309c1ab | 249 | AliError(Form("\nsector[0] = %d, sector[1] = %d\n", |
250 | sdigit.GetSector(0), sdigit.GetSector(1))); | |
251 | continue; | |
252 | } | |
fd9afd60 | 253 | // Checking if signal is inside ADC gate |
254 | if(iSDigit==0) signalTime0 = sdigit.GetTrackTime(); | |
255 | else{ | |
256 | // Assuming a signal lenght of 20 ns, signal is in gate if | |
257 | // signal ENDS in signalTime0+50. -> sdigit.GetTrackTime()+20<=signalTime0+50. | |
258 | if(sdigit.GetTrackTime()<=signalTime0+30.) fIsSignalInADCGate = kTRUE; | |
259 | if(sdigit.GetTrackTime()>signalTime0+30.){ | |
260 | fIsSignalInADCGate = kFALSE; | |
5d24ec95 | 261 | // Vedi quaderno per spiegazione approx. usata nel calcolo della fraz. di segnale perso |
fd9afd60 | 262 | fFracLostSignal = (sdigit.GetTrackTime()-30)*(sdigit.GetTrackTime()-30)/280.; |
263 | } | |
264 | } | |
698e394d | 265 | |
fd9afd60 | 266 | Float_t sdSignal = sdigit.GetLightPM(); |
267 | if(fIsSignalInADCGate == kFALSE){ | |
7e858b1d | 268 | AliDebug(2,Form("\t Signal time %f -> fraction %f of ZDC signal for det.(%d, %d) out of ADC gate\n", |
0fba8107 | 269 | sdigit.GetTrackTime(),fFracLostSignal,sdigit.GetSector(0),sdigit.GetSector(1))); |
fd9afd60 | 270 | sdSignal = (1-fFracLostSignal)*sdSignal; |
271 | } | |
272 | ||
48642b09 | 273 | pm[(sdigit.GetSector(0))-1][sdigit.GetSector(1)] += sdigit.GetLightPM(); |
698e394d | 274 | //Ch. debug |
275 | /*printf("\t Detector %d, Tower %d -> pm[%d][%d] = %.0f \n", | |
48642b09 | 276 | sdigit.GetSector(0), sdigit.GetSector(1),sdigit.GetSector(0)-1, |
698e394d | 277 | sdigit.GetSector(1), pm[sdigit.GetSector(0)-1][sdigit.GetSector(1)]); |
878fa0b3 | 278 | */ |
fd9afd60 | 279 | |
8309c1ab | 280 | } |
281 | ||
8309c1ab | 282 | loader->UnloadSDigits(); |
283 | ||
284 | // get the impact parameter and the number of spectators in case of hijing | |
8574b308 | 285 | if(!runLoader->GetAliRun()) runLoader->LoadgAlice(); |
d3b3a3b2 | 286 | AliHeader* header = runLoader->GetHeader(); |
8574b308 | 287 | if(!header) continue; |
8309c1ab | 288 | AliGenEventHeader* genHeader = header->GenEventHeader(); |
8574b308 | 289 | if(!genHeader) continue; |
07e38cef | 290 | AliGenHijingEventHeader *hijingHeader = 0; |
291 | if(genHeader->InheritsFrom(AliGenHijingEventHeader::Class())) hijingHeader = dynamic_cast <AliGenHijingEventHeader*> (genHeader); | |
292 | else if(genHeader->InheritsFrom(AliGenCocktailEventHeader::Class())){ | |
293 | TList* listOfHeaders = ((AliGenCocktailEventHeader*) genHeader)->GetHeaders(); | |
01e01248 | 294 | if(listOfHeaders) hijingHeader = dynamic_cast <AliGenHijingEventHeader*> (listOfHeaders->FindObject("Hijing")); |
295 | else{ | |
296 | AliWarning(" No list of headers from generator -> skipping event\n"); | |
297 | continue; | |
298 | } | |
07e38cef | 299 | } |
300 | if(!hijingHeader) continue; | |
301 | ||
8fced614 | 302 | if(fSpectators2Track==kTRUE){ |
303 | impPar = hijingHeader->ImpactParameter(); | |
07e38cef | 304 | specNProj = hijingHeader->ProjSpectatorsn(); |
305 | specPProj = hijingHeader->ProjSpectatorsp(); | |
306 | specNTarg = hijingHeader->TargSpectatorsn(); | |
307 | specPTarg = hijingHeader->TargSpectatorsp(); | |
5d24ec95 | 308 | AliInfo(Form("\t AliZDCDigitizer: b = %1.2f fm\n" |
8fced614 | 309 | " \t PROJECTILE: #spectator n %d, #spectator p %d\n" |
310 | " \t TARGET: #spectator n %d, #spectator p %d\n", | |
5d24ec95 | 311 | impPar, specNProj, specPProj, specNTarg, specPTarg)); |
a18a0543 | 312 | |
5d24ec95 | 313 | // Applying fragmentation algorithm and adding spectator signal |
314 | Int_t freeSpecNProj=0, freeSpecPProj=0; | |
315 | if(specNProj!=0 || specPProj!=0) Fragmentation(impPar, specNProj, specPProj, freeSpecNProj, freeSpecPProj); | |
316 | Int_t freeSpecNTarg=0, freeSpecPTarg=0; | |
317 | if(specNTarg!=0 || specPTarg!=0) Fragmentation(impPar, specNTarg, specPTarg, freeSpecNTarg, freeSpecPTarg); | |
318 | if(freeSpecNProj!=0) SpectatorSignal(1, freeSpecNProj, pm); | |
319 | if(freeSpecPProj!=0) SpectatorSignal(2, freeSpecPProj, pm); | |
320 | AliInfo(Form("\t AliZDCDigitizer -> Adding spectator signal for PROJECTILE: %d free n and %d free p\n",freeSpecNProj,freeSpecPProj)); | |
321 | if(freeSpecNTarg!=0) SpectatorSignal(3, freeSpecNTarg, pm); | |
322 | if(freeSpecPTarg!=0) SpectatorSignal(4, freeSpecPTarg, pm); | |
323 | AliInfo(Form("\t AliZDCDigitizer -> Adding spectator signal for TARGET: %d free n and %d free p\n",freeSpecNTarg,freeSpecPTarg)); | |
324 | } | |
8309c1ab | 325 | } |
326 | ||
8a2624cc | 327 | |
8309c1ab | 328 | // get the output run loader and loader |
329 | AliRunLoader* runLoader = | |
f21fc003 | 330 | AliRunLoader::GetRunLoader(fDigInput->GetOutputFolderName()); |
8309c1ab | 331 | AliLoader* loader = runLoader->GetLoader("ZDCLoader"); |
8574b308 | 332 | if(!loader) { |
8309c1ab | 333 | AliError("no ZDC loader found"); |
334 | return; | |
335 | } | |
336 | ||
337 | // create the output tree | |
338 | const char* mode = "update"; | |
8574b308 | 339 | if(runLoader->GetEventNumber() == 0) mode = "recreate"; |
8309c1ab | 340 | loader->LoadDigits(mode); |
341 | loader->MakeTree("D"); | |
342 | TTree* treeD = loader->TreeD(); | |
343 | AliZDCDigit digit; | |
344 | AliZDCDigit* pdigit = &digit; | |
345 | const Int_t kBufferSize = 4000; | |
346 | treeD->Branch("ZDC", "AliZDCDigit", &pdigit, kBufferSize); | |
347 | ||
348 | // Create digits | |
80e87581 | 349 | Int_t sector[2]; |
350 | Int_t digi[2], digioot[2]; | |
351 | for(sector[0]=1; sector[0]<6; sector[0]++){ | |
abf60186 | 352 | for(sector[1]=0; sector[1]<5; sector[1]++){ |
353 | if((sector[0]==3) && ((sector[1]<1) || (sector[1]>2))) continue; | |
8574b308 | 354 | for(Int_t res=0; res<2; res++){ |
abf60186 | 355 | digi[res] = Phe2ADCch(sector[0], sector[1], pm[sector[0]-1][sector[1]], res) |
48642b09 | 356 | + Pedestal(sector[0], sector[1], res); |
7f73eb6b | 357 | } |
abf60186 | 358 | new(pdigit) AliZDCDigit(sector, digi); |
8309c1ab | 359 | treeD->Fill(); |
698e394d | 360 | |
361 | //Ch. debug | |
362 | //printf("\t DIGIT added -> det %d quad %d - digi[0,1] = [%d, %d]\n", | |
363 | // sector[0], sector[1], digi[0], digi[1]); // Chiara debugging! | |
364 | ||
8309c1ab | 365 | } |
83347831 | 366 | } // Loop over detector |
367 | // Adding in-time digits for 2 reference PTM signals (after signal ch.) | |
368 | // (for the moment the ref. signal is completely invented assuming a PMgain of 5*10^4!) | |
369 | Int_t sectorRef[2]; | |
370 | sectorRef[1] = 5; | |
9d38ced8 | 371 | Int_t sigRef[2]; |
80e87581 | 372 | // Reference signal are set to 100 (high gain chain) and 800 (low gain chain) |
9d38ced8 | 373 | if(fIsCalibration==0) {sigRef[0]=100; sigRef[1]=800;} |
80e87581 | 374 | else {sigRef[0]=0; sigRef[1]=0;} // calibration -> simulation of pedestal values |
9d38ced8 | 375 | // |
83347831 | 376 | for(Int_t iref=0; iref<2; iref++){ |
377 | sectorRef[0] = 3*iref+1; | |
378 | for(Int_t res=0; res<2; res++){ | |
379 | sigRef[res] += Pedestal(sectorRef[0], sectorRef[1], res); | |
380 | } | |
83347831 | 381 | new(pdigit) AliZDCDigit(sectorRef, sigRef); |
382 | treeD->Fill(); | |
698e394d | 383 | |
384 | //Ch. debug | |
385 | //printf("\t RefDigit added -> det = %d, quad = %d - digi[0,1] = [%d, %d]\n", | |
386 | // sectorRef[0], sectorRef[1], sigRef[0], sigRef[1]); // Chiara debugging! | |
abf60186 | 387 | } |
d79f8d50 | 388 | // |
389 | // --- Adding digits for out-of-time channels after signal digits | |
80e87581 | 390 | for(sector[0]=1; sector[0]<6; sector[0]++){ |
d79f8d50 | 391 | for(sector[1]=0; sector[1]<5; sector[1]++){ |
392 | if((sector[0]==3) && ((sector[1]<1) || (sector[1]>2))) continue; | |
8574b308 | 393 | for(Int_t res=0; res<2; res++){ |
d79f8d50 | 394 | digioot[res] = Pedestal(sector[0], sector[1], res); // out-of-time ADCs |
395 | } | |
d79f8d50 | 396 | new(pdigit) AliZDCDigit(sector, digioot); |
397 | treeD->Fill(); | |
698e394d | 398 | |
399 | //Ch. debug | |
400 | //printf("\t DIGIToot added -> det = %d, quad = %d - digi[0,1] = [%d, %d]\n", | |
401 | // sector[0], sector[1], digioot[0], digioot[1]); // Chiara debugging! | |
d79f8d50 | 402 | } |
403 | } | |
83347831 | 404 | // Adding out-of-time digits for 2 reference PTM signals (after out-of-time ch.) |
405 | Int_t sigRefoot[2]; | |
406 | for(Int_t iref=0; iref<2; iref++){ | |
407 | sectorRef[0] = 3*iref+1; | |
408 | for(Int_t res=0; res<2; res++){ | |
409 | sigRefoot[res] = Pedestal(sectorRef[0], sectorRef[1], res); | |
410 | } | |
83347831 | 411 | new(pdigit) AliZDCDigit(sectorRef, sigRefoot); |
412 | treeD->Fill(); | |
698e394d | 413 | //Ch. debug |
414 | //printf("\t RefDigitoot added -> det = %d, quad = %d - digi[0,1] = [%d, %d]\n", | |
415 | // sectorRef[0], sectorRef[1], sigRefoot[0], sigRefoot[1]); // Chiara debugging! | |
416 | ||
83347831 | 417 | } |
418 | //printf("\t AliZDCDigitizer -> TreeD has %d entries\n",(Int_t) treeD->GetEntries()); | |
419 | ||
8309c1ab | 420 | // write the output tree |
421 | loader->WriteDigits("OVERWRITE"); | |
422 | loader->UnloadDigits(); | |
423 | } | |
424 | ||
425 | ||
5d24ec95 | 426 | //_____________________________________________________________________________ |
427 | void AliZDCDigitizer::CalculatePMTGains() | |
428 | { | |
429 | // Calculate PMT gain according to beam type and beam energy | |
430 | if(((fBeamType.CompareTo("P-P")) == 0)){ | |
431 | // PTM gains rescaled to beam energy for p-p | |
432 | // New correction coefficients for PMT gains needed | |
433 | // to reproduce experimental spectra (from Grazia Jul 2010) | |
434 | if(fBeamEnergy != 0){ | |
435 | for(Int_t j = 0; j < 5; j++){ | |
436 | fPMGain[0][j] = 1.515831*(661.444/fBeamEnergy+0.000740671)*10000000; | |
437 | fPMGain[1][j] = 0.674234*(864.350/fBeamEnergy+0.00234375)*10000000; | |
438 | fPMGain[3][j] = 1.350938*(661.444/fBeamEnergy+0.000740671)*10000000; | |
439 | fPMGain[4][j] = 0.678597*(864.350/fBeamEnergy+0.00234375)*10000000; | |
440 | } | |
441 | fPMGain[2][1] = 0.869654*(1.32312-0.000101515*fBeamEnergy)*10000000; | |
442 | fPMGain[2][2] = 1.030883*(1.32312-0.000101515*fBeamEnergy)*10000000; | |
443 | // | |
444 | AliInfo(Form("\n ZDC PMT gains for p-p @ %1.0f+%1.0f GeV: ZNC(%1.0f), ZPC(%1.0f), ZEM(%1.0f), ZNA(%1.0f) ZPA(%1.0f)\n", | |
445 | fBeamEnergy, fBeamEnergy, fPMGain[0][0], fPMGain[1][0], fPMGain[2][1], fPMGain[3][0], fPMGain[4][0])); | |
446 | ||
447 | } | |
448 | } | |
449 | else if(((fBeamType.CompareTo("A-A")) == 0)){ | |
450 | // PTM gains for Pb-Pb @ 2.7+2.7 A TeV *************** | |
451 | // rescaled for Pb-Pb @ 1.38+1.38 A TeV *************** | |
452 | // Values corrected after 2010 Pb-Pb data taking (7/2/2011 - Ch.) | |
453 | // Experimental data compared to EMD simulation for single nucleon peaks: | |
454 | // ZN gains must be divided by 4, ZP gains by 10! | |
455 | Float_t scalGainFactor = fBeamEnergy/2760.; | |
456 | for(Int_t j = 0; j < 5; j++){ | |
457 | fPMGain[0][j] = 50000./(4*scalGainFactor); // ZNC | |
458 | fPMGain[1][j] = 100000./(5*scalGainFactor); // ZPC | |
459 | fPMGain[2][j] = 100000./scalGainFactor; // ZEM | |
460 | fPMGain[3][j] = 50000./(4*scalGainFactor); // ZNA | |
461 | fPMGain[4][j] = 100000./(5*scalGainFactor); // ZPA | |
462 | } | |
463 | AliInfo(Form("\n ZDC PMT gains for Pb-Pb @ %1.0f+%1.0f A GeV: ZN(%1.0f), ZP(%1.0f), ZEM(%1.0f)\n", | |
464 | fBeamEnergy, fBeamEnergy, fPMGain[0][0], fPMGain[1][0], fPMGain[2][1])); | |
465 | } | |
466 | else if(((fBeamType.CompareTo("p-A")) == 0)){ | |
467 | // PTM gains for Pb-Pb @ 1.38+1.38 A TeV on side A | |
468 | // PTM gains rescaled to beam energy for p-p on side C | |
469 | // WARNING! Energies are set by hand for 2011 pA RUN!!! | |
470 | Float_t scalGainFactor = fBeamEnergy*82/(208*2760.); | |
471 | ||
472 | for(Int_t j = 0; j < 5; j++){ | |
473 | fPMGain[0][j] = 1.515831*(661.444/fBeamEnergy+0.000740671)*10000000; //ZNC (p) | |
474 | fPMGain[1][j] = 0.674234*(864.350/fBeamEnergy+0.00234375)*10000000; //ZPC (p) | |
475 | fPMGain[2][j] = 100000./scalGainFactor; // ZEM (Pb) | |
476 | fPMGain[3][j] = 50000./(4*scalGainFactor); // ZNA (Pb) | |
477 | fPMGain[4][j] = 100000./(5*scalGainFactor); // ZPA (Pb) | |
478 | } | |
479 | AliInfo(Form("\n ZDC PMT gains for p-Pb: ZNC(%1.0f), ZPC(%1.0f), ZEM(%1.0f), ZNA(%1.0f) ZPA(%1.0f)\n", | |
480 | fPMGain[0][0], fPMGain[1][0], fPMGain[2][1], fPMGain[3][0], fPMGain[4][0])); | |
481 | } | |
482 | } | |
483 | ||
8309c1ab | 484 | //_____________________________________________________________________________ |
485 | void AliZDCDigitizer::Fragmentation(Float_t impPar, Int_t specN, Int_t specP, | |
486 | Int_t &freeSpecN, Int_t &freeSpecP) const | |
487 | { | |
488 | // simulate fragmentation of spectators | |
489 | ||
8309c1ab | 490 | AliZDCFragment frag(impPar); |
8309c1ab | 491 | |
492 | // Fragments generation | |
92339a90 | 493 | frag.GenerateIMF(); |
494 | Int_t nAlpha = frag.GetNalpha(); | |
8309c1ab | 495 | |
496 | // Attach neutrons | |
98711e01 | 497 | frag.AttachNeutrons(); |
92339a90 | 498 | Int_t ztot = frag.GetZtot(); |
499 | Int_t ntot = frag.GetNtot(); | |
98711e01 | 500 | |
501 | // Removing fragments and alpha pcs | |
8309c1ab | 502 | freeSpecN = specN-ntot-2*nAlpha; |
503 | freeSpecP = specP-ztot-2*nAlpha; | |
98711e01 | 504 | |
3848c666 | 505 | // Removing deuterons |
a0607c1f | 506 | Int_t ndeu = (Int_t) (freeSpecN*frag.DeuteronNumber()); |
3848c666 | 507 | freeSpecN -= ndeu; |
98711e01 | 508 | freeSpecP -= ndeu; |
3848c666 | 509 | // |
8309c1ab | 510 | if(freeSpecN<0) freeSpecN=0; |
511 | if(freeSpecP<0) freeSpecP=0; | |
512 | AliDebug(2, Form("FreeSpn = %d, FreeSpp = %d", freeSpecN, freeSpecP)); | |
513 | } | |
514 | ||
515 | //_____________________________________________________________________________ | |
516 | void AliZDCDigitizer::SpectatorSignal(Int_t SpecType, Int_t numEvents, | |
fd9afd60 | 517 | Float_t pm[5][5]) const |
8309c1ab | 518 | { |
519 | // add signal of the spectators | |
fd9afd60 | 520 | |
2d9c70ab | 521 | TFile *specSignalFile = TFile::Open("$ALICE_ROOT/ZDC/SpectatorSignal.root"); |
522 | if(!specSignalFile || !specSignalFile->IsOpen()) { | |
523 | AliError((" Opening file $ALICE_ROOT/ZDC/SpectatorSignal.root failed\n")); | |
524 | return; | |
8309c1ab | 525 | } |
2d9c70ab | 526 | |
e7eabc21 | 527 | TNtuple* zdcSignal=0x0; |
2d9c70ab | 528 | |
529 | Float_t sqrtS = 2*fBeamEnergy; | |
530 | // | |
531 | if(TMath::Abs(sqrtS-5500) < 100.){ | |
5d24ec95 | 532 | AliInfo(" Extracting signal from SpectatorSignal/energy5500 "); |
2d9c70ab | 533 | specSignalFile->cd("energy5500"); |
534 | // | |
535 | if(SpecType == 1) { // --- Signal for projectile spectator neutrons | |
536 | specSignalFile->GetObject("energy5500/ZNCSignal;1",zdcSignal); | |
537 | if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZNCSignal from SpectatorSignal.root file"); | |
538 | } | |
539 | else if(SpecType == 2) { // --- Signal for projectile spectator protons | |
540 | specSignalFile->GetObject("energy5500/ZPCSignal;1",zdcSignal); | |
541 | if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZPCSignal from SpectatorSignal.root file"); | |
542 | } | |
543 | else if(SpecType == 3) { // --- Signal for target spectator neutrons | |
544 | specSignalFile->GetObject("energy5500/ZNASignal;1",zdcSignal); | |
545 | if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZNASignal from SpectatorSignal.root file"); | |
546 | } | |
547 | else if(SpecType == 4) { // --- Signal for target spectator protons | |
548 | specSignalFile->GetObject("energy5500/ZPASignal;1",zdcSignal); | |
549 | if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZPASignal from SpectatorSignal.root file"); | |
550 | } | |
fd9afd60 | 551 | } |
2d9c70ab | 552 | else if(TMath::Abs(sqrtS-2760) < 100.){ |
5d24ec95 | 553 | AliInfo(" Extracting signal from SpectatorSignal/energy2760 "); |
2d9c70ab | 554 | specSignalFile->cd("energy2760"); |
555 | // | |
556 | if(SpecType == 1) { // --- Signal for projectile spectator neutrons | |
557 | specSignalFile->GetObject("energy2760/ZNCSignal;1",zdcSignal); | |
558 | if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZNCSignal from SpectatorSignal.root file"); | |
559 | } | |
560 | else if(SpecType == 2) { // --- Signal for projectile spectator protons | |
561 | specSignalFile->GetObject("energy2760/ZPCSignal;1",zdcSignal); | |
562 | if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZPCSignal from SpectatorSignal.root file"); | |
563 | } | |
564 | else if(SpecType == 3) { // --- Signal for target spectator neutrons | |
565 | specSignalFile->GetObject("energy2760/ZNASignal;1",zdcSignal); | |
566 | if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZNASignal from SpectatorSignal.root file"); | |
567 | } | |
568 | else if(SpecType == 4) { // --- Signal for target spectator protons | |
569 | specSignalFile->GetObject("energy2760/ZPASignal;1",zdcSignal); | |
570 | if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZPASignal from SpectatorSignal.root file"); | |
571 | } | |
fd9afd60 | 572 | } |
573 | ||
83534754 | 574 | if(!zdcSignal){ |
575 | printf("\n No spectator signal available for ZDC digitization\n"); | |
576 | return; | |
577 | } | |
578 | ||
8309c1ab | 579 | Int_t nentries = (Int_t) zdcSignal->GetEntries(); |
580 | ||
fd9afd60 | 581 | Float_t *entry; |
582 | Int_t pl, i, k, iev=0, rnd[125], volume[2]; | |
48642b09 | 583 | for(pl=0;pl<125;pl++) rnd[pl] = 0; |
8574b308 | 584 | if(numEvents > 125) { |
fea9b334 | 585 | AliDebug(2,Form("numEvents (%d) is larger than 125", numEvents)); |
8309c1ab | 586 | numEvents = 125; |
587 | } | |
588 | for(pl=0;pl<numEvents;pl++){ | |
589 | rnd[pl] = (Int_t) (9999*gRandom->Rndm()); | |
85a96223 | 590 | if(rnd[pl] >= 9999) rnd[pl] = 9998; |
8309c1ab | 591 | //printf(" rnd[%d] = %d\n",pl,rnd[pl]); |
592 | } | |
593 | // Sorting vector in ascending order with C function QSORT | |
594 | qsort((void*)rnd,numEvents,sizeof(Int_t),comp); | |
595 | do{ | |
596 | for(i=0; i<nentries; i++){ | |
597 | zdcSignal->GetEvent(i); | |
598 | entry = zdcSignal->GetArgs(); | |
599 | if(entry[0] == rnd[iev]){ | |
600 | for(k=0; k<2; k++) volume[k] = (Int_t) entry[k+1]; | |
48642b09 | 601 | // |
fd9afd60 | 602 | Float_t lightQ = entry[7]; |
603 | Float_t lightC = entry[8]; | |
604 | // | |
acf9550c | 605 | if(volume[0] != 3) { // ZN or ZP |
8309c1ab | 606 | pm[volume[0]-1][0] += lightC; |
607 | pm[volume[0]-1][volume[1]] += lightQ; | |
48642b09 | 608 | //printf("\n pm[%d][0] = %.0f, pm[%d][%d] = %.0f\n",(volume[0]-1),pm[volume[0]-1][0], |
609 | // (volume[0]-1),volume[1],pm[volume[0]-1][volume[1]]); | |
610 | } | |
611 | else { | |
8574b308 | 612 | if(volume[1] == 1) pm[2][1] += lightC; // ZEM 1 |
acf9550c | 613 | else pm[2][2] += lightQ; // ZEM 2 |
48642b09 | 614 | //printf("\n pm[2][1] = %.0f, pm[2][2] = %.0f\n",pm[2][1],pm[2][2]); |
615 | } | |
8309c1ab | 616 | } |
617 | else if(entry[0] > rnd[iev]){ | |
618 | iev++; | |
619 | continue; | |
620 | } | |
621 | } | |
622 | }while(iev<numEvents); | |
623 | ||
2d9c70ab | 624 | specSignalFile->Close(); |
625 | delete specSignalFile; | |
8309c1ab | 626 | } |
627 | ||
628 | ||
629 | //_____________________________________________________________________________ | |
630 | Int_t AliZDCDigitizer::Phe2ADCch(Int_t Det, Int_t Quad, Float_t Light, | |
631 | Int_t Res) const | |
632 | { | |
48642b09 | 633 | // Evaluation of the ADC channel corresponding to the light yield Light |
8a2624cc | 634 | Int_t vADCch = (Int_t) (Light * fPMGain[Det-1][Quad] * fADCRes[Res]); |
698e394d | 635 | // Ch. debug |
636 | //printf("\t Phe2ADCch -> det %d quad %d - PMGain[%d][%d] %1.0f phe %1.2f ADC %d\n", | |
637 | // Det,Quad,Det-1,Quad,fPMGain[Det-1][Quad],Light,vADCch); | |
7f73eb6b | 638 | |
8a2624cc | 639 | return vADCch; |
48642b09 | 640 | } |
8309c1ab | 641 | |
48642b09 | 642 | //_____________________________________________________________________________ |
643 | Int_t AliZDCDigitizer::Pedestal(Int_t Det, Int_t Quad, Int_t Res) const | |
644 | { | |
8a2624cc | 645 | // Returns a pedestal for detector det, PM quad, channel with res. |
646 | // | |
65b16e87 | 647 | Float_t pedValue; |
abf60186 | 648 | // Normal run |
649 | if(fIsCalibration == 0){ | |
c35ed519 | 650 | Int_t index=0, kNch=24; |
83347831 | 651 | if(Quad!=5){ |
c35ed519 | 652 | if(Det==1) index = Quad+kNch*Res; // ZNC |
653 | else if(Det==2) index = (Quad+5)+kNch*Res; // ZPC | |
654 | else if(Det==3) index = (Quad+9)+kNch*Res; // ZEM | |
655 | else if(Det==4) index = (Quad+12)+kNch*Res; // ZNA | |
656 | else if(Det==5) index = (Quad+17)+kNch*Res; // ZPA | |
83347831 | 657 | } |
c35ed519 | 658 | else index = (Det-1)/3+22+kNch*Res; // Reference PMs |
83347831 | 659 | // |
c35ed519 | 660 | Float_t meanPed = fPedData->GetMeanPed(index); |
661 | Float_t pedWidth = fPedData->GetMeanPedWidth(index); | |
65b16e87 | 662 | pedValue = gRandom->Gaus(meanPed,pedWidth); |
abf60186 | 663 | // |
58e12fee | 664 | /*printf("\t AliZDCDigitizer::Pedestal -> det %d quad %d res %d - Ped[%d] = %d\n", |
65b16e87 | 665 | Det, Quad, Res, index,(Int_t) pedValue); // Chiara debugging! |
abf60186 | 666 | */ |
667 | } | |
7f73eb6b | 668 | // To create calibration object |
83347831 | 669 | else{ |
65b16e87 | 670 | if(Res == 0) pedValue = gRandom->Gaus((35.+10.*gRandom->Rndm()),(0.5+0.2*gRandom->Rndm())); //High gain |
671 | else pedValue = gRandom->Gaus((250.+100.*gRandom->Rndm()),(3.5+2.*gRandom->Rndm())); //Low gain | |
83347831 | 672 | } |
dbc8d7fc | 673 | |
65b16e87 | 674 | return (Int_t) pedValue; |
8309c1ab | 675 | } |
676 | ||
677 | //_____________________________________________________________________________ | |
78d18275 | 678 | AliCDBStorage* AliZDCDigitizer::SetStorage(const char *uri) |
8309c1ab | 679 | { |
8309c1ab | 680 | |
78d18275 | 681 | Bool_t deleteManager = kFALSE; |
48642b09 | 682 | |
78d18275 | 683 | AliCDBManager *manager = AliCDBManager::Instance(); |
684 | AliCDBStorage *defstorage = manager->GetDefaultStorage(); | |
48642b09 | 685 | |
78d18275 | 686 | if(!defstorage || !(defstorage->Contains("ZDC"))){ |
687 | AliWarning("No default storage set or default storage doesn't contain ZDC!"); | |
688 | manager->SetDefaultStorage(uri); | |
689 | deleteManager = kTRUE; | |
690 | } | |
691 | ||
692 | AliCDBStorage *storage = manager->GetDefaultStorage(); | |
693 | ||
694 | if(deleteManager){ | |
695 | AliCDBManager::Instance()->UnsetDefaultStorage(); | |
696 | defstorage = 0; // the storage is killed by AliCDBManager::Instance()->Destroy() | |
697 | } | |
698 | ||
699 | return storage; | |
700 | } | |
48642b09 | 701 | |
78d18275 | 702 | //_____________________________________________________________________________ |
6024ec85 | 703 | AliZDCPedestals* AliZDCDigitizer::GetPedData() const |
704 | { | |
705 | ||
706 | // Getting pedestal calibration object for ZDC set | |
707 | ||
708 | AliCDBEntry *entry = AliCDBManager::Instance()->Get("ZDC/Calib/Pedestals"); | |
709 | if(!entry) AliFatal("No calibration data loaded!"); | |
710 | ||
711 | AliZDCPedestals *calibdata = dynamic_cast<AliZDCPedestals*> (entry->GetObject()); | |
712 | if(!calibdata) AliFatal("Wrong calibration object in calibration file!"); | |
713 | ||
714 | return calibdata; | |
715 | } | |
f91d1e35 | 716 |