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macro to configure EMCAL trigger QA analysis
[u/mrichter/AliRoot.git] / ZDC / AliZDCDigitizer.cxx
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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
33#include "AliLog.h"
34#include "AliRun.h"
35#include "AliHeader.h"
36#include "AliGenHijingEventHeader.h"
37#include "AliDigitizationInput.h"
38#include "AliRunLoader.h"
39#include "AliLoader.h"
40#include "AliGRPObject.h"
41#include "AliCDBManager.h"
42#include "AliCDBEntry.h"
43#include "AliZDCSDigit.h"
44#include "AliZDCDigit.h"
45#include "AliZDCFragment.h"
46#include "AliZDCv3.h"
47#include "AliZDCDigitizer.h"
48
49class AliCDBStorage;
50class AliZDCPedestals;
51
52ClassImp(AliZDCDigitizer)
53
54
55//____________________________________________________________________________
56AliZDCDigitizer::AliZDCDigitizer() :
57 fIsCalibration(0),
58 fIsSignalInADCGate(kFALSE),
59 fFracLostSignal(0.),
60 fPedData(0),
61 fSpectators2Track(kFALSE),
62 fBeamEnergy(0.),
63 fIspASystem(kFALSE)
64{
65 // Default constructor
66 for(Int_t i=0; i<2; i++) fADCRes[i]=0.;
67}
68
69//____________________________________________________________________________
70AliZDCDigitizer::AliZDCDigitizer(AliDigitizationInput* digInput):
71 AliDigitizer(digInput),
72 fIsCalibration(0), //By default the simulation doesn't create calib. data
73 fIsSignalInADCGate(kFALSE),
74 fFracLostSignal(0.),
75 fPedData(GetPedData()),
76 fSpectators2Track(kFALSE),
77 fBeamEnergy(0.),
78 fIspASystem(kFALSE)
79{
80 // Get calibration data
81 if(fIsCalibration!=0) printf("\n\t AliZDCDigitizer -> Creating calibration data (pedestals)\n");
82 for(Int_t i=0; i<5; i++){
83 for(Int_t j=0; j<5; j++)
84 fPMGain[i][j] = 0.;
85 }
86}
87
88//____________________________________________________________________________
89AliZDCDigitizer::~AliZDCDigitizer()
90{
91// Destructor
92// Not implemented
93}
94
95
96//____________________________________________________________________________
97AliZDCDigitizer::AliZDCDigitizer(const AliZDCDigitizer &digitizer):
98 AliDigitizer(),
99 fIsCalibration(digitizer.fIsCalibration),
100 fIsSignalInADCGate(digitizer.fIsSignalInADCGate),
101 fFracLostSignal(digitizer.fFracLostSignal),
102 fPedData(digitizer.fPedData),
103 fSpectators2Track(digitizer.fSpectators2Track),
104 fBeamEnergy(digitizer.fBeamEnergy),
105 fIspASystem(digitizer.fIspASystem)
106{
107 // Copy constructor
108
109 for(Int_t i=0; i<5; i++){
110 for(Int_t j=0; j<5; j++){
111 fPMGain[i][j] = digitizer.fPMGain[i][j];
112 }
113 }
114 for(Int_t i=0; i<2; i++) fADCRes[i] = digitizer.fADCRes[i];
115
116
117}
118
119//____________________________________________________________________________
120Bool_t AliZDCDigitizer::Init()
121{
122 // Initialize the digitizer
123
124 AliCDBEntry* entry = AliCDBManager::Instance()->Get("GRP/GRP/Data");
125 if(!entry) AliFatal("No calibration data loaded!");
126 AliGRPObject* grpData = 0x0;
127 if(entry){
128 TMap* m = dynamic_cast<TMap*>(entry->GetObject()); // old GRP entry
129 if(m){
130 //m->Print();
131 grpData = new AliGRPObject();
132 grpData->ReadValuesFromMap(m);
133 }
134 else{
135 grpData = dynamic_cast<AliGRPObject*>(entry->GetObject()); // new GRP entry
136 }
137 entry->SetOwner(0);
138 AliCDBManager::Instance()->UnloadFromCache("GRP/GRP/Data");
139 }
140 if(!grpData){
141 AliError("No GRP entry found in OCDB! \n ");
142 return kFALSE;
143 }
144
145 TString beamType = grpData->GetBeamType();
146 if(beamType==AliGRPObject::GetInvalidString()){
147 AliError("\t UNKNOWN beam type from GRP obj -> PMT gains not set in ZDC digitizer!!!\n");
148 }
149
150 fBeamEnergy = grpData->GetBeamEnergy();
151 printf(" beam energy = %f GeV\n", fBeamEnergy);
152 if(fBeamEnergy==AliGRPObject::GetInvalidFloat()){
153 AliWarning("GRP/GRP/Data entry: missing value for the beam energy ! Using 0.");
154 AliError("\t UNKNOWN beam type from GRP obj -> PMT gains not set in ZDC digitizer!!!\n");
155 fBeamEnergy = 0.;
156 }
157
158 if((beamType.CompareTo("P-P")) == 0 || (beamType.CompareTo("p-p")) == 0 && !fIspASystem){
159 // PTM gains rescaled to beam energy for p-p
160 // New correction coefficients for PMT gains needed
161 // to reproduce experimental spectra (from Grazia Jul 2010)
162 if(fBeamEnergy != 0){
163 for(Int_t j = 0; j < 5; j++){
164 fPMGain[0][j] = 1.515831*(661.444/fBeamEnergy+0.000740671)*10000000;
165 fPMGain[1][j] = 0.674234*(864.350/fBeamEnergy+0.00234375)*10000000;
166 fPMGain[3][j] = 1.350938*(661.444/fBeamEnergy+0.000740671)*10000000;
167 fPMGain[4][j] = 0.678597*(864.350/fBeamEnergy+0.00234375)*10000000;
168 }
169 fPMGain[2][1] = 0.869654*(1.32312-0.000101515*fBeamEnergy)*10000000;
170 fPMGain[2][2] = 1.030883*(1.32312-0.000101515*fBeamEnergy)*10000000;
171 //
172 AliInfo(Form(" PMT gains for p-p @ %1.0f+%1.0f GeV: ZN(%1.0f), ZP(%1.0f), ZEM(%1.0f)\n",
173 fBeamEnergy, fBeamEnergy, fPMGain[0][0], fPMGain[1][0], fPMGain[2][1]));
174 }
175 else{ // for RELDIS simulation @ sqrt(s_{NN}) = 2.76 TeV
176 Float_t scalGainFactor = 0.5;
177 for(Int_t j = 0; j < 5; j++){
178 fPMGain[0][j] = 50000./scalGainFactor; // ZNC
179 fPMGain[1][j] = 100000./scalGainFactor; // ZPC
180 fPMGain[2][j] = 100000./scalGainFactor; // ZEM
181 fPMGain[3][j] = 50000./scalGainFactor; // ZNA
182 fPMGain[4][j] = 100000./scalGainFactor; // ZPA
183 }
184 //
185 AliInfo(Form(" PMT gains for RELDIS simulation: ZN(%1.0f), ZP(%1.0f), ZEM(%1.0f)\n",
186 fPMGain[0][0], fPMGain[1][0], fPMGain[2][1]));
187 }
188 }
189 else if((beamType.CompareTo("A-A")) == 0 && !fIspASystem){
190 // PTM gains for Pb-Pb @ 2.7+2.7 A TeV ***************
191 // rescaled for Pb-Pb @ 1.38+1.38 A TeV ***************
192 // Values corrected after 2010 Pb-Pb data taking (7/2/2011 - Ch.)
193 // Experimental data compared to EMD simulation for single nucleon peaks:
194 // ZN gains must be divided by 4, ZP gains by 10!
195 Float_t scalGainFactor = fBeamEnergy/2760.;
196 for(Int_t j = 0; j < 5; j++){
197 fPMGain[0][j] = 50000./(4*scalGainFactor); // ZNC
198 fPMGain[1][j] = 100000./(5*scalGainFactor); // ZPC
199 fPMGain[2][j] = 100000./scalGainFactor; // ZEM
200 fPMGain[3][j] = 50000./(4*scalGainFactor); // ZNA
201 fPMGain[4][j] = 100000./(5*scalGainFactor); // ZPA
202 }
203 AliInfo(Form(" PMT gains for Pb-Pb @ %1.0f+%1.0f A GeV: ZN(%1.0f), ZP(%1.0f), ZEM(%1.0f)\n",
204 fBeamEnergy, fBeamEnergy, fPMGain[0][0], fPMGain[1][0], fPMGain[2][1]));
205 }
206
207 if(fIspASystem){
208 // PTM gains for Pb-Pb @ 1.38+1.38 A TeV on side A
209 // PTM gains rescaled to beam energy for p-p on side C
210 // WARNING! Energies are set by hand for 2011 pA RUN!!!
211 Float_t scalGainFactor = 0.5;
212 Float_t fpBeamEnergy = 3500.;
213
214 for(Int_t j = 0; j < 5; j++){
215 fPMGain[0][j] = 1.350938*(661.444/fpBeamEnergy+0.000740671)*10000000; //ZNC (p)
216 fPMGain[1][j] = 0.678597*(864.350/fpBeamEnergy+0.00234375)*10000000; //ZPC (p)
217 fPMGain[2][j] = 100000./scalGainFactor; // ZEM (Pb)
218 fPMGain[3][j] = 50000./(4*scalGainFactor); // ZNA (Pb)
219 fPMGain[4][j] = 100000./(5*scalGainFactor); // ZPA (Pb)
220 }
221 AliInfo(Form(" PMT gains for p-Pb: ZNC(%1.0f), ZPC(%1.0f), ZEM(%1.0f), ZNA(%1.0f) ZPA(%1.0f)\n",
222 fPMGain[0][0], fPMGain[1][0], fPMGain[2][1], fPMGain[3][0], fPMGain[4][0]));
223 }
224
225 // ADC Caen V965
226 fADCRes[0] = 0.0000008; // ADC Resolution high gain: 200 fC/adcCh
227 fADCRes[1] = 0.0000064; // ADC Resolution low gain: 25 fC/adcCh
228
229 return kTRUE;
230}
231
232//____________________________________________________________________________
233void AliZDCDigitizer::Digitize(Option_t* /*option*/)
234{
235 // Execute digitization
236
237 // ------------------------------------------------------------
238 // !!! 2nd ZDC set added
239 // *** 1st 3 arrays are digits from REAL (simulated) hits
240 // *** last 2 are copied from simulated digits
241 // --- pm[0][...] = light in ZN side C [C, Q1, Q2, Q3, Q4]
242 // --- pm[1][...] = light in ZP side C [C, Q1, Q2, Q3, Q4]
243 // --- pm[2][...] = light in ZEM [x, 1, 2, x, x]
244 // --- pm[3][...] = light in ZN side A [C, Q1, Q2, Q3, Q4] ->NEW!
245 // --- pm[4][...] = light in ZP side A [C, Q1, Q2, Q3, Q4] ->NEW!
246 // ------------------------------------------------------------
247 Float_t pm[5][5];
248 for(Int_t iSector1=0; iSector1<5; iSector1++)
249 for(Int_t iSector2=0; iSector2<5; iSector2++){
250 pm[iSector1][iSector2] = 0;
251 }
252
253 // ------------------------------------------------------------
254 // ### Out of time ADC added (22 channels)
255 // --- same codification as for signal PTMs (see above)
256 // ------------------------------------------------------------
257 Float_t pmoot[5][5];
258 for(Int_t iSector1=0; iSector1<5; iSector1++)
259 for(Int_t iSector2=0; iSector2<5; iSector2++){
260 pmoot[iSector1][iSector2] = 0;
261 }
262
263 // impact parameter and number of spectators
264 Float_t impPar = 0;
265 Int_t specNTarg = 0, specPTarg = 0;
266 Int_t specNProj = 0, specPProj = 0;
267 Float_t signalTime0 = 0.;
268
269 // loop over input streams
270 for(Int_t iInput = 0; iInput<fDigInput->GetNinputs(); iInput++){
271
272 // get run loader and ZDC loader
273 AliRunLoader* runLoader =
274 AliRunLoader::GetRunLoader(fDigInput->GetInputFolderName(iInput));
275 AliLoader* loader = runLoader->GetLoader("ZDCLoader");
276 if(!loader) continue;
277
278 // load sdigits
279 loader->LoadSDigits();
280 TTree* treeS = loader->TreeS();
281 if(!treeS) continue;
282 AliZDCSDigit sdigit;
283 AliZDCSDigit* psdigit = &sdigit;
284 treeS->SetBranchAddress("ZDC", &psdigit);
285
286 // loop over sdigits
287 for(Int_t iSDigit=0; iSDigit<treeS->GetEntries(); iSDigit++){
288 treeS->GetEntry(iSDigit);
289 //
290 if(!psdigit) continue;
291 if((sdigit.GetSector(1) < 0) || (sdigit.GetSector(1) > 4)){
292 AliError(Form("\nsector[0] = %d, sector[1] = %d\n",
293 sdigit.GetSector(0), sdigit.GetSector(1)));
294 continue;
295 }
296 // Checking if signal is inside ADC gate
297 if(iSDigit==0) signalTime0 = sdigit.GetTrackTime();
298 else{
299 // Assuming a signal lenght of 20 ns, signal is in gate if
300 // signal ENDS in signalTime0+50. -> sdigit.GetTrackTime()+20<=signalTime0+50.
301 if(sdigit.GetTrackTime()<=signalTime0+30.) fIsSignalInADCGate = kTRUE;
302 if(sdigit.GetTrackTime()>signalTime0+30.){
303 fIsSignalInADCGate = kFALSE;
304 // Vedi quaderno per spiegazione approx. usata
305 // nel calcolo della fraz. di segnale perso
306 fFracLostSignal = (sdigit.GetTrackTime()-30)*(sdigit.GetTrackTime()-30)/280.;
307 }
308 }
309
310 Float_t sdSignal = sdigit.GetLightPM();
311 if(fIsSignalInADCGate == kFALSE){
312 AliDebug(2,Form("\t Signal time %f -> fraction %f of ZDC signal for det.(%d, %d) out of ADC gate\n",
313 sdigit.GetTrackTime(),fFracLostSignal,sdigit.GetSector(0),sdigit.GetSector(1)));
314 sdSignal = (1-fFracLostSignal)*sdSignal;
315 }
316
317 pm[(sdigit.GetSector(0))-1][sdigit.GetSector(1)] += sdigit.GetLightPM();
318 //Ch. debug
319 /*printf("\t Detector %d, Tower %d -> pm[%d][%d] = %.0f \n",
320 sdigit.GetSector(0), sdigit.GetSector(1),sdigit.GetSector(0)-1,
321 sdigit.GetSector(1), pm[sdigit.GetSector(0)-1][sdigit.GetSector(1)]);
322 */
323
324 }
325
326 loader->UnloadSDigits();
327
328 // get the impact parameter and the number of spectators in case of hijing
329 if(!runLoader->GetAliRun()) runLoader->LoadgAlice();
330 AliHeader* header = runLoader->GetHeader();
331 if(!header) continue;
332 AliGenEventHeader* genHeader = header->GenEventHeader();
333 if(!genHeader) continue;
334 if(!genHeader->InheritsFrom(AliGenHijingEventHeader::Class())) continue;
335
336 if(fSpectators2Track==kTRUE && fIspASystem==kFALSE){
337 impPar = ((AliGenHijingEventHeader*) genHeader)->ImpactParameter();
338 specNProj = ((AliGenHijingEventHeader*) genHeader)->ProjSpectatorsn();
339 specPProj = ((AliGenHijingEventHeader*) genHeader)->ProjSpectatorsp();
340 specNTarg = ((AliGenHijingEventHeader*) genHeader)->TargSpectatorsn();
341 specPTarg = ((AliGenHijingEventHeader*) genHeader)->TargSpectatorsp();
342 /*printf("\n\t AliZDCDigitizer: b = %1.2f fm\n"
343 " \t PROJ.: #spectator n %d, #spectator p %d\n"
344 " \t TARG.: #spectator n %d, #spectator p %d\n",
345 impPar, specNProj, specPProj, specNTarg, specPTarg);*/
346 }
347
348 }
349
350 // Applying fragmentation algorithm and adding spectator signal
351 if(fSpectators2Track==kTRUE && impPar && fIspASystem==kFALSE) {
352 Int_t freeSpecNProj, freeSpecPProj;
353 Fragmentation(impPar, specNProj, specPProj, freeSpecNProj, freeSpecPProj);
354 Int_t freeSpecNTarg, freeSpecPTarg;
355 Fragmentation(impPar, specNTarg, specPTarg, freeSpecNTarg, freeSpecPTarg);
356 SpectatorSignal(1, freeSpecNProj, pm);
357// printf("\t AliZDCDigitizer -> Adding signal for %d PROJ free spectator n",freeSpecNProj);
358 SpectatorSignal(2, freeSpecPProj, pm);
359// printf(" and %d free spectator p\n",freeSpecPProj);
360 SpectatorSignal(3, freeSpecNTarg, pm);
361// printf("\t AliZDCDigitizer -> Adding signal for %d TARG free spectator n",freeSpecNTarg);
362 SpectatorSignal(4, freeSpecPTarg, pm);
363// printf(" and %d free spectator p\n\n",freeSpecPTarg);
364 }
365
366
367 // get the output run loader and loader
368 AliRunLoader* runLoader =
369 AliRunLoader::GetRunLoader(fDigInput->GetOutputFolderName());
370 AliLoader* loader = runLoader->GetLoader("ZDCLoader");
371 if(!loader) {
372 AliError("no ZDC loader found");
373 return;
374 }
375
376 // create the output tree
377 const char* mode = "update";
378 if(runLoader->GetEventNumber() == 0) mode = "recreate";
379 loader->LoadDigits(mode);
380 loader->MakeTree("D");
381 TTree* treeD = loader->TreeD();
382 AliZDCDigit digit;
383 AliZDCDigit* pdigit = &digit;
384 const Int_t kBufferSize = 4000;
385 treeD->Branch("ZDC", "AliZDCDigit", &pdigit, kBufferSize);
386
387 // Create digits
388 Int_t sector[2];
389 Int_t digi[2], digioot[2];
390 for(sector[0]=1; sector[0]<6; sector[0]++){
391 for(sector[1]=0; sector[1]<5; sector[1]++){
392 if((sector[0]==3) && ((sector[1]<1) || (sector[1]>2))) continue;
393 for(Int_t res=0; res<2; res++){
394 digi[res] = Phe2ADCch(sector[0], sector[1], pm[sector[0]-1][sector[1]], res)
395 + Pedestal(sector[0], sector[1], res);
396 }
397 new(pdigit) AliZDCDigit(sector, digi);
398 treeD->Fill();
399
400 //Ch. debug
401 //printf("\t DIGIT added -> det %d quad %d - digi[0,1] = [%d, %d]\n",
402 // sector[0], sector[1], digi[0], digi[1]); // Chiara debugging!
403
404 }
405 } // Loop over detector
406 // Adding in-time digits for 2 reference PTM signals (after signal ch.)
407 // (for the moment the ref. signal is completely invented assuming a PMgain of 5*10^4!)
408 Int_t sectorRef[2];
409 sectorRef[1] = 5;
410 Int_t sigRef[2];
411 // Reference signal are set to 100 (high gain chain) and 800 (low gain chain)
412 if(fIsCalibration==0) {sigRef[0]=100; sigRef[1]=800;}
413 else {sigRef[0]=0; sigRef[1]=0;} // calibration -> simulation of pedestal values
414 //
415 for(Int_t iref=0; iref<2; iref++){
416 sectorRef[0] = 3*iref+1;
417 for(Int_t res=0; res<2; res++){
418 sigRef[res] += Pedestal(sectorRef[0], sectorRef[1], res);
419 }
420 new(pdigit) AliZDCDigit(sectorRef, sigRef);
421 treeD->Fill();
422
423 //Ch. debug
424 //printf("\t RefDigit added -> det = %d, quad = %d - digi[0,1] = [%d, %d]\n",
425 // sectorRef[0], sectorRef[1], sigRef[0], sigRef[1]); // Chiara debugging!
426 }
427 //
428 // --- Adding digits for out-of-time channels after signal digits
429 for(sector[0]=1; sector[0]<6; sector[0]++){
430 for(sector[1]=0; sector[1]<5; sector[1]++){
431 if((sector[0]==3) && ((sector[1]<1) || (sector[1]>2))) continue;
432 for(Int_t res=0; res<2; res++){
433 digioot[res] = Pedestal(sector[0], sector[1], res); // out-of-time ADCs
434 }
435 new(pdigit) AliZDCDigit(sector, digioot);
436 treeD->Fill();
437
438 //Ch. debug
439 //printf("\t DIGIToot added -> det = %d, quad = %d - digi[0,1] = [%d, %d]\n",
440 // sector[0], sector[1], digioot[0], digioot[1]); // Chiara debugging!
441 }
442 }
443 // Adding out-of-time digits for 2 reference PTM signals (after out-of-time ch.)
444 Int_t sigRefoot[2];
445 for(Int_t iref=0; iref<2; iref++){
446 sectorRef[0] = 3*iref+1;
447 for(Int_t res=0; res<2; res++){
448 sigRefoot[res] = Pedestal(sectorRef[0], sectorRef[1], res);
449 }
450 new(pdigit) AliZDCDigit(sectorRef, sigRefoot);
451 treeD->Fill();
452 //Ch. debug
453 //printf("\t RefDigitoot added -> det = %d, quad = %d - digi[0,1] = [%d, %d]\n",
454 // sectorRef[0], sectorRef[1], sigRefoot[0], sigRefoot[1]); // Chiara debugging!
455
456 }
457 //printf("\t AliZDCDigitizer -> TreeD has %d entries\n",(Int_t) treeD->GetEntries());
458
459 // write the output tree
460 loader->WriteDigits("OVERWRITE");
461 loader->UnloadDigits();
462}
463
464
465//_____________________________________________________________________________
466void AliZDCDigitizer::Fragmentation(Float_t impPar, Int_t specN, Int_t specP,
467 Int_t &freeSpecN, Int_t &freeSpecP) const
468{
469// simulate fragmentation of spectators
470
471 AliZDCFragment frag(impPar);
472
473 // Fragments generation
474 frag.GenerateIMF();
475 Int_t nAlpha = frag.GetNalpha();
476
477 // Attach neutrons
478 frag.AttachNeutrons();
479 Int_t ztot = frag.GetZtot();
480 Int_t ntot = frag.GetNtot();
481
482 // Removing fragments and alpha pcs
483 freeSpecN = specN-ntot-2*nAlpha;
484 freeSpecP = specP-ztot-2*nAlpha;
485
486 // Removing deuterons
487 Int_t ndeu = (Int_t) (freeSpecN*frag.DeuteronNumber());
488 freeSpecN -= ndeu;
489 freeSpecP -= ndeu;
490 //
491 if(freeSpecN<0) freeSpecN=0;
492 if(freeSpecP<0) freeSpecP=0;
493 AliDebug(2, Form("FreeSpn = %d, FreeSpp = %d", freeSpecN, freeSpecP));
494}
495
496//_____________________________________________________________________________
497void AliZDCDigitizer::SpectatorSignal(Int_t SpecType, Int_t numEvents,
498 Float_t pm[5][5]) const
499{
500// add signal of the spectators
501
502 TFile *specSignalFile = TFile::Open("$ALICE_ROOT/ZDC/SpectatorSignal.root");
503 if(!specSignalFile || !specSignalFile->IsOpen()) {
504 AliError((" Opening file $ALICE_ROOT/ZDC/SpectatorSignal.root failed\n"));
505 return;
506 }
507
508 TNtuple* zdcSignal=0x0;
509
510 Float_t sqrtS = 2*fBeamEnergy;
511 //
512 if(TMath::Abs(sqrtS-5500) < 100.){
513 specSignalFile->cd("energy5500");
514 //
515 if(SpecType == 1) { // --- Signal for projectile spectator neutrons
516 specSignalFile->GetObject("energy5500/ZNCSignal;1",zdcSignal);
517 if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZNCSignal from SpectatorSignal.root file");
518 }
519 else if(SpecType == 2) { // --- Signal for projectile spectator protons
520 specSignalFile->GetObject("energy5500/ZPCSignal;1",zdcSignal);
521 if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZPCSignal from SpectatorSignal.root file");
522 }
523 else if(SpecType == 3) { // --- Signal for target spectator neutrons
524 specSignalFile->GetObject("energy5500/ZNASignal;1",zdcSignal);
525 if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZNASignal from SpectatorSignal.root file");
526 }
527 else if(SpecType == 4) { // --- Signal for target spectator protons
528 specSignalFile->GetObject("energy5500/ZPASignal;1",zdcSignal);
529 if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZPASignal from SpectatorSignal.root file");
530 }
531 }
532 else if(TMath::Abs(sqrtS-2760) < 100.){
533 specSignalFile->cd("energy2760");
534 //
535 if(SpecType == 1) { // --- Signal for projectile spectator neutrons
536 specSignalFile->GetObject("energy2760/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("energy2760/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("energy2760/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("energy2760/ZPASignal;1",zdcSignal);
549 if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZPASignal from SpectatorSignal.root file");
550 }
551 }
552
553 if(!zdcSignal){
554 printf("\n No spectator signal available for ZDC digitization\n");
555 return;
556 }
557
558 Int_t nentries = (Int_t) zdcSignal->GetEntries();
559
560 Float_t *entry;
561 Int_t pl, i, k, iev=0, rnd[125], volume[2];
562 for(pl=0;pl<125;pl++) rnd[pl] = 0;
563 if(numEvents > 125) {
564 AliDebug(2,Form("numEvents (%d) is larger than 125", numEvents));
565 numEvents = 125;
566 }
567 for(pl=0;pl<numEvents;pl++){
568 rnd[pl] = (Int_t) (9999*gRandom->Rndm());
569 if(rnd[pl] >= 9999) rnd[pl] = 9998;
570 //printf(" rnd[%d] = %d\n",pl,rnd[pl]);
571 }
572 // Sorting vector in ascending order with C function QSORT
573 qsort((void*)rnd,numEvents,sizeof(Int_t),comp);
574 do{
575 for(i=0; i<nentries; i++){
576 zdcSignal->GetEvent(i);
577 entry = zdcSignal->GetArgs();
578 if(entry[0] == rnd[iev]){
579 for(k=0; k<2; k++) volume[k] = (Int_t) entry[k+1];
580 //
581 Float_t lightQ = entry[7];
582 Float_t lightC = entry[8];
583 //
584 if(volume[0] != 3) { // ZN or ZP
585 pm[volume[0]-1][0] += lightC;
586 pm[volume[0]-1][volume[1]] += lightQ;
587 //printf("\n pm[%d][0] = %.0f, pm[%d][%d] = %.0f\n",(volume[0]-1),pm[volume[0]-1][0],
588 // (volume[0]-1),volume[1],pm[volume[0]-1][volume[1]]);
589 }
590 else {
591 if(volume[1] == 1) pm[2][1] += lightC; // ZEM 1
592 else pm[2][2] += lightQ; // ZEM 2
593 //printf("\n pm[2][1] = %.0f, pm[2][2] = %.0f\n",pm[2][1],pm[2][2]);
594 }
595 }
596 else if(entry[0] > rnd[iev]){
597 iev++;
598 continue;
599 }
600 }
601 }while(iev<numEvents);
602
603 specSignalFile->Close();
604 delete specSignalFile;
605}
606
607
608//_____________________________________________________________________________
609Int_t AliZDCDigitizer::Phe2ADCch(Int_t Det, Int_t Quad, Float_t Light,
610 Int_t Res) const
611{
612 // Evaluation of the ADC channel corresponding to the light yield Light
613 Int_t vADCch = (Int_t) (Light * fPMGain[Det-1][Quad] * fADCRes[Res]);
614 // Ch. debug
615 //printf("\t Phe2ADCch -> det %d quad %d - PMGain[%d][%d] %1.0f phe %1.2f ADC %d\n",
616 // Det,Quad,Det-1,Quad,fPMGain[Det-1][Quad],Light,vADCch);
617
618 return vADCch;
619}
620
621//_____________________________________________________________________________
622Int_t AliZDCDigitizer::Pedestal(Int_t Det, Int_t Quad, Int_t Res) const
623{
624 // Returns a pedestal for detector det, PM quad, channel with res.
625 //
626 Float_t pedValue;
627 // Normal run
628 if(fIsCalibration == 0){
629 Int_t index=0, kNch=24;
630 if(Quad!=5){
631 if(Det==1) index = Quad+kNch*Res; // ZNC
632 else if(Det==2) index = (Quad+5)+kNch*Res; // ZPC
633 else if(Det==3) index = (Quad+9)+kNch*Res; // ZEM
634 else if(Det==4) index = (Quad+12)+kNch*Res; // ZNA
635 else if(Det==5) index = (Quad+17)+kNch*Res; // ZPA
636 }
637 else index = (Det-1)/3+22+kNch*Res; // Reference PMs
638 //
639 Float_t meanPed = fPedData->GetMeanPed(index);
640 Float_t pedWidth = fPedData->GetMeanPedWidth(index);
641 pedValue = gRandom->Gaus(meanPed,pedWidth);
642 //
643 /*printf("\t AliZDCDigitizer::Pedestal -> det %d quad %d res %d - Ped[%d] = %d\n",
644 Det, Quad, Res, index,(Int_t) pedValue); // Chiara debugging!
645 */
646 }
647 // To create calibration object
648 else{
649 if(Res == 0) pedValue = gRandom->Gaus((35.+10.*gRandom->Rndm()),(0.5+0.2*gRandom->Rndm())); //High gain
650 else pedValue = gRandom->Gaus((250.+100.*gRandom->Rndm()),(3.5+2.*gRandom->Rndm())); //Low gain
651 }
652
653 return (Int_t) pedValue;
654}
655
656//_____________________________________________________________________________
657AliCDBStorage* AliZDCDigitizer::SetStorage(const char *uri)
658{
659
660 Bool_t deleteManager = kFALSE;
661
662 AliCDBManager *manager = AliCDBManager::Instance();
663 AliCDBStorage *defstorage = manager->GetDefaultStorage();
664
665 if(!defstorage || !(defstorage->Contains("ZDC"))){
666 AliWarning("No default storage set or default storage doesn't contain ZDC!");
667 manager->SetDefaultStorage(uri);
668 deleteManager = kTRUE;
669 }
670
671 AliCDBStorage *storage = manager->GetDefaultStorage();
672
673 if(deleteManager){
674 AliCDBManager::Instance()->UnsetDefaultStorage();
675 defstorage = 0; // the storage is killed by AliCDBManager::Instance()->Destroy()
676 }
677
678 return storage;
679}
680
681//_____________________________________________________________________________
682AliZDCPedestals* AliZDCDigitizer::GetPedData() const
683{
684
685 // Getting pedestal calibration object for ZDC set
686
687 AliCDBEntry *entry = AliCDBManager::Instance()->Get("ZDC/Calib/Pedestals");
688 if(!entry) AliFatal("No calibration data loaded!");
689
690 AliZDCPedestals *calibdata = dynamic_cast<AliZDCPedestals*> (entry->GetObject());
691 if(!calibdata) AliFatal("Wrong calibration object in calibration file!");
692
693 return calibdata;
694}
695