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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
33#include "AliLog.h"
34#include "AliRun.h"
35#include "AliHeader.h"
36#include "AliGenHijingEventHeader.h"
37#include "AliRunDigitizer.h"
38#include "AliRunLoader.h"
78d18275 39#include "AliCDBManager.h"
48642b09 40#include "AliCDBEntry.h"
8309c1ab 41#include "AliZDCSDigit.h"
42#include "AliZDCDigit.h"
43#include "AliZDCFragment.h"
44#include "AliZDCDigitizer.h"
8a2624cc 45
46class AliCDBStorage;
6024ec85 47class AliZDCPedestals;
48class AliZDCCalib;
8309c1ab 49
50ClassImp(AliZDCDigitizer)
51
52
53//____________________________________________________________________________
a718c993 54AliZDCDigitizer::AliZDCDigitizer() :
55 fIsCalibration(0),
fd9afd60 56 fIsSignalInADCGate(kFALSE),
57 fFracLostSignal(0.),
a718c993 58 fPedData(0),
7bff3766 59 fCalibData(0)
8309c1ab 60{
61// Default constructor
62
63}
64
65//____________________________________________________________________________
66AliZDCDigitizer::AliZDCDigitizer(AliRunDigitizer* manager):
a718c993 67 AliDigitizer(manager),
68 fIsCalibration(0), //By default the simulation doesn't create calib. data
fd9afd60 69 fIsSignalInADCGate(kFALSE),
70 fFracLostSignal(0.),
a718c993 71 fPedData(GetPedData()),
7bff3766 72 fCalibData(GetCalibData())
8309c1ab 73{
78d18275 74 // Get calibration data
d27e20dd 75 if(fIsCalibration!=0) printf("\n\t AliZDCDigitizer -> Creating calibration data (pedestals)\n");
78d18275 76
8309c1ab 77}
78
79//____________________________________________________________________________
80AliZDCDigitizer::~AliZDCDigitizer()
81{
82// Destructor
a718c993 83// Not implemented
8309c1ab 84}
85
86
cc2abffd 87//____________________________________________________________________________
88AliZDCDigitizer::AliZDCDigitizer(const AliZDCDigitizer &digitizer):
a718c993 89 AliDigitizer(),
90 fIsCalibration(digitizer.fIsCalibration),
fd9afd60 91 fIsSignalInADCGate(digitizer.fIsSignalInADCGate),
92 fFracLostSignal(digitizer.fFracLostSignal),
a718c993 93 fPedData(digitizer.fPedData),
7bff3766 94 fCalibData(digitizer.fCalibData)
cc2abffd 95{
96 // Copy constructor
97
98 for(Int_t i=0; i<6; i++){
99 for(Int_t j=0; j<5; j++){
100 fPMGain[i][j] = digitizer.fPMGain[i][j];
101 }
102 }
103 for(Int_t i=0; i<2; i++) fADCRes[i] = digitizer.fADCRes[i];
cc2abffd 104
105}
106
8309c1ab 107//____________________________________________________________________________
108Bool_t AliZDCDigitizer::Init()
109{
48642b09 110 // Initialize the digitizer
111 // NB -> PM gain vs. HV & ADC resolutions will move to DCDB ***************
7f73eb6b 112 for(Int_t j = 0; j < 5; j++){
113 fPMGain[0][j] = 50000.;
114 fPMGain[1][j] = 100000.;
115 fPMGain[2][j] = 100000.;
a017f01b 116 fPMGain[3][j] = 50000.;
117 fPMGain[4][j] = 100000.;
118 fPMGain[5][j] = 100000.;
7f73eb6b 119 }
120 // ADC Caen V965
121 fADCRes[0] = 0.0000008; // ADC Resolution high gain: 200 fC/adcCh
122 fADCRes[1] = 0.0000064; // ADC Resolution low gain: 25 fC/adcCh
8309c1ab 123
124 return kTRUE;
125}
126
127//____________________________________________________________________________
128void AliZDCDigitizer::Exec(Option_t* /*option*/)
129{
48642b09 130 // Execute digitization
8309c1ab 131
d79f8d50 132 // ------------------------------------------------------------
83347831 133 // !!! 2nd ZDC set added
7f73eb6b 134 // *** 1st 3 arrays are digits from REAL (simulated) hits
135 // *** last 2 are copied from simulated digits
fd9afd60 136 // --- pm[0][...] = light in ZN side C [C, Q1, Q2, Q3, Q4]
137 // --- pm[1][...] = light in ZP side C [C, Q1, Q2, Q3, Q4]
48642b09 138 // --- pm[2][...] = light in ZEM [x, 1, 2, x, x]
fd9afd60 139 // --- pm[3][...] = light in ZN side A [C, Q1, Q2, Q3, Q4] ->NEW!
140 // --- pm[4][...] = light in ZP side A [C, Q1, Q2, Q3, Q4] ->NEW!
d79f8d50 141 // ------------------------------------------------------------
142 Float_t pm[5][5];
8574b308 143 for(Int_t iSector1=0; iSector1<5; iSector1++)
144 for(Int_t iSector2=0; iSector2<5; iSector2++){
8309c1ab 145 pm[iSector1][iSector2] = 0;
146 }
d79f8d50 147
148 // ------------------------------------------------------------
149 // ### Out of time ADC added (22 channels)
150 // --- same codification as for signal PTMs (see above)
151 // ------------------------------------------------------------
152 Float_t pmoot[5][5];
8574b308 153 for(Int_t iSector1=0; iSector1<5; iSector1++)
154 for(Int_t iSector2=0; iSector2<5; iSector2++){
d79f8d50 155 pmoot[iSector1][iSector2] = 0;
156 }
8309c1ab 157
158 // impact parameter and number of spectators
159 Float_t impPar = -1;
fd9afd60 160 Int_t specNTarg = 0, specPTarg = 0;
161 Int_t specNProj = 0, specPProj = 0;
805be8a6 162 Float_t signalTime0 = 0;
8309c1ab 163
164 // loop over input streams
8574b308 165 for(Int_t iInput = 0; iInput<fManager->GetNinputs(); iInput++){
8309c1ab 166
167 // get run loader and ZDC loader
168 AliRunLoader* runLoader =
169 AliRunLoader::GetRunLoader(fManager->GetInputFolderName(iInput));
170 AliLoader* loader = runLoader->GetLoader("ZDCLoader");
8574b308 171 if(!loader) continue;
8309c1ab 172
173 // load sdigits
174 loader->LoadSDigits();
175 TTree* treeS = loader->TreeS();
8574b308 176 if(!treeS) continue;
8309c1ab 177 AliZDCSDigit sdigit;
178 AliZDCSDigit* psdigit = &sdigit;
179 treeS->SetBranchAddress("ZDC", &psdigit);
180
181 // loop over sdigits
8574b308 182 for(Int_t iSDigit=0; iSDigit<treeS->GetEntries(); iSDigit++){
8309c1ab 183 treeS->GetEntry(iSDigit);
7f73eb6b 184 //
8574b308 185 if(!psdigit) continue;
186 if((sdigit.GetSector(1) < 0) || (sdigit.GetSector(1) > 4)){
8309c1ab 187 AliError(Form("\nsector[0] = %d, sector[1] = %d\n",
188 sdigit.GetSector(0), sdigit.GetSector(1)));
189 continue;
190 }
fd9afd60 191 // Checking if signal is inside ADC gate
192 if(iSDigit==0) signalTime0 = sdigit.GetTrackTime();
193 else{
194 // Assuming a signal lenght of 20 ns, signal is in gate if
195 // signal ENDS in signalTime0+50. -> sdigit.GetTrackTime()+20<=signalTime0+50.
196 if(sdigit.GetTrackTime()<=signalTime0+30.) fIsSignalInADCGate = kTRUE;
197 if(sdigit.GetTrackTime()>signalTime0+30.){
198 fIsSignalInADCGate = kFALSE;
199 // Vedi quaderno per spiegazione approx. usata
200 // nel calcolo della fraz. di segnale perso
201 fFracLostSignal = (sdigit.GetTrackTime()-30)*(sdigit.GetTrackTime()-30)/280.;
202 }
203 }
204 Float_t sdSignal = sdigit.GetLightPM();
205 if(fIsSignalInADCGate == kFALSE){
206 AliWarning(Form("\t %f of ZDC signal 4 det.(%d, %d) out of ADC gate\n",
207 fFracLostSignal,sdigit.GetSector(0),sdigit.GetSector(1)));
208 sdSignal = (1-fFracLostSignal)*sdSignal;
209 }
210
48642b09 211 pm[(sdigit.GetSector(0))-1][sdigit.GetSector(1)] += sdigit.GetLightPM();
878fa0b3 212 /*printf("\n\t Detector %d, Tower %d -> pm[%d][%d] = %.0f \n",
48642b09 213 sdigit.GetSector(0), sdigit.GetSector(1),sdigit.GetSector(0)-1,
878fa0b3 214 sdigit.GetSector(1), pm[sdigit.GetSector(0)-1][sdigit.GetSector(1)]); // Chiara debugging!
215 */
fd9afd60 216
8309c1ab 217 }
218
8309c1ab 219 loader->UnloadSDigits();
220
221 // get the impact parameter and the number of spectators in case of hijing
8574b308 222 if(!runLoader->GetAliRun()) runLoader->LoadgAlice();
d3b3a3b2 223 AliHeader* header = runLoader->GetHeader();
8574b308 224 if(!header) continue;
8309c1ab 225 AliGenEventHeader* genHeader = header->GenEventHeader();
8574b308 226 if(!genHeader) continue;
227 if(!genHeader->InheritsFrom(AliGenHijingEventHeader::Class())) continue;
8309c1ab 228 impPar = ((AliGenHijingEventHeader*) genHeader)->ImpactParameter();
85a96223 229 //
fd9afd60 230 specNProj = ((AliGenHijingEventHeader*) genHeader)->ProjSpectatorsn();
231 specPProj = ((AliGenHijingEventHeader*) genHeader)->ProjSpectatorsp();
232 specNTarg = ((AliGenHijingEventHeader*) genHeader)->TargSpectatorsn();
233 specPTarg = ((AliGenHijingEventHeader*) genHeader)->TargSpectatorsp();
234 printf("\n\t AliZDCDigitizer: b = %f fm\n"
235 " \t PROJ.: #spectator n %d, #spectator p %d\n"
236 " \t TARG.: #spectator n %d, #spectator p %d\n",
237 impPar, specNProj, specPProj, specNTarg, specPTarg);
8309c1ab 238 }
239
fd9afd60 240 // Applying fragmentation algorithm and adding spectator signal
8574b308 241 if(impPar >= 0) {
fd9afd60 242 Int_t freeSpecNProj, freeSpecPProj;
243 Fragmentation(impPar, specNProj, specPProj, freeSpecNProj, freeSpecPProj);
244 Int_t freeSpecNTarg, freeSpecPTarg;
245 Fragmentation(impPar, specNTarg, specPTarg, freeSpecNTarg, freeSpecPTarg);
246 SpectatorSignal(1, freeSpecNProj, pm);
247 printf(" AliZDCDigitizer -> Signal for %d PROJ free spectator n added\n",freeSpecNProj);
248 SpectatorSignal(2, freeSpecPProj, pm);
249 printf(" AliZDCDigitizer -> Signal for %d PROJ free spectator p added\n",freeSpecPProj);
250 SpectatorSignal(3, freeSpecNTarg, pm);
251 printf(" AliZDCDigitizer -> Signal for %d TARG free spectator n added\n",freeSpecNTarg);
252 SpectatorSignal(4, freeSpecPTarg, pm);
253 printf(" AliZDCDigitizer -> Signal for %d TARG free spectator p added\n",freeSpecPTarg);
8309c1ab 254 }
255
8a2624cc 256
8309c1ab 257 // get the output run loader and loader
258 AliRunLoader* runLoader =
259 AliRunLoader::GetRunLoader(fManager->GetOutputFolderName());
260 AliLoader* loader = runLoader->GetLoader("ZDCLoader");
8574b308 261 if(!loader) {
8309c1ab 262 AliError("no ZDC loader found");
263 return;
264 }
265
266 // create the output tree
267 const char* mode = "update";
8574b308 268 if(runLoader->GetEventNumber() == 0) mode = "recreate";
8309c1ab 269 loader->LoadDigits(mode);
270 loader->MakeTree("D");
271 TTree* treeD = loader->TreeD();
272 AliZDCDigit digit;
273 AliZDCDigit* pdigit = &digit;
274 const Int_t kBufferSize = 4000;
275 treeD->Branch("ZDC", "AliZDCDigit", &pdigit, kBufferSize);
276
277 // Create digits
80e87581 278 Int_t sector[2];
279 Int_t digi[2], digioot[2];
280 for(sector[0]=1; sector[0]<6; sector[0]++){
abf60186 281 for(sector[1]=0; sector[1]<5; sector[1]++){
282 if((sector[0]==3) && ((sector[1]<1) || (sector[1]>2))) continue;
8574b308 283 for(Int_t res=0; res<2; res++){
abf60186 284 digi[res] = Phe2ADCch(sector[0], sector[1], pm[sector[0]-1][sector[1]], res)
48642b09 285 + Pedestal(sector[0], sector[1], res);
7f73eb6b 286 }
878fa0b3 287 /*printf("\t DIGIT added -> det %d quad %d - digi[0,1] = [%d, %d]\n",
288 sector[0], sector[1], digi[0], digi[1]); // Chiara debugging!
289 */
abf60186 290 //
291 new(pdigit) AliZDCDigit(sector, digi);
8309c1ab 292 treeD->Fill();
293 }
83347831 294 } // Loop over detector
295 // Adding in-time digits for 2 reference PTM signals (after signal ch.)
296 // (for the moment the ref. signal is completely invented assuming a PMgain of 5*10^4!)
297 Int_t sectorRef[2];
298 sectorRef[1] = 5;
9d38ced8 299 Int_t sigRef[2];
80e87581 300 // Reference signal are set to 100 (high gain chain) and 800 (low gain chain)
9d38ced8 301 if(fIsCalibration==0) {sigRef[0]=100; sigRef[1]=800;}
80e87581 302 else {sigRef[0]=0; sigRef[1]=0;} // calibration -> simulation of pedestal values
9d38ced8 303 //
83347831 304 for(Int_t iref=0; iref<2; iref++){
305 sectorRef[0] = 3*iref+1;
306 for(Int_t res=0; res<2; res++){
307 sigRef[res] += Pedestal(sectorRef[0], sectorRef[1], res);
308 }
878fa0b3 309 /*printf("\t RefDigit added -> det = %d, quad = %d - digi[0,1] = [%d, %d]\n",
310 sectorRef[0], sectorRef[1], sigRef[0], sigRef[1]); // Chiara debugging!
311 */
83347831 312 new(pdigit) AliZDCDigit(sectorRef, sigRef);
313 treeD->Fill();
abf60186 314 }
d79f8d50 315 //
316 // --- Adding digits for out-of-time channels after signal digits
80e87581 317 for(sector[0]=1; sector[0]<6; sector[0]++){
d79f8d50 318 for(sector[1]=0; sector[1]<5; sector[1]++){
319 if((sector[0]==3) && ((sector[1]<1) || (sector[1]>2))) continue;
8574b308 320 for(Int_t res=0; res<2; res++){
d79f8d50 321 digioot[res] = Pedestal(sector[0], sector[1], res); // out-of-time ADCs
322 }
878fa0b3 323 /*printf("\t DIGIToot added -> det = %d, quad = %d - digi[0,1] = [%d, %d]\n",
324 sector[0], sector[1], digioot[0], digioot[1]); // Chiara debugging!
325 */
d79f8d50 326 //
327 new(pdigit) AliZDCDigit(sector, digioot);
328 treeD->Fill();
d79f8d50 329 }
330 }
83347831 331 // Adding out-of-time digits for 2 reference PTM signals (after out-of-time ch.)
332 Int_t sigRefoot[2];
333 for(Int_t iref=0; iref<2; iref++){
334 sectorRef[0] = 3*iref+1;
335 for(Int_t res=0; res<2; res++){
336 sigRefoot[res] = Pedestal(sectorRef[0], sectorRef[1], res);
337 }
878fa0b3 338 /*printf("\t RefDigitoot added -> det = %d, quad = %d - digi[0,1] = [%d, %d]\n",
339 sectorRef[0], sectorRef[1], sigRefoot[0], sigRefoot[1]); // Chiara debugging!
340 */
83347831 341 new(pdigit) AliZDCDigit(sectorRef, sigRefoot);
342 treeD->Fill();
83347831 343 }
344 //printf("\t AliZDCDigitizer -> TreeD has %d entries\n",(Int_t) treeD->GetEntries());
345
8309c1ab 346 // write the output tree
347 loader->WriteDigits("OVERWRITE");
348 loader->UnloadDigits();
349}
350
351
352//_____________________________________________________________________________
353void AliZDCDigitizer::Fragmentation(Float_t impPar, Int_t specN, Int_t specP,
354 Int_t &freeSpecN, Int_t &freeSpecP) const
355{
356// simulate fragmentation of spectators
357
8309c1ab 358 AliZDCFragment frag(impPar);
8309c1ab 359
360 // Fragments generation
92339a90 361 frag.GenerateIMF();
362 Int_t nAlpha = frag.GetNalpha();
8309c1ab 363
364 // Attach neutrons
92339a90 365 Int_t ztot = frag.GetZtot();
366 Int_t ntot = frag.GetNtot();
367 frag.AttachNeutrons();
8309c1ab 368 freeSpecN = specN-ntot-2*nAlpha;
369 freeSpecP = specP-ztot-2*nAlpha;
3848c666 370 // Removing deuterons
a0607c1f 371 Int_t ndeu = (Int_t) (freeSpecN*frag.DeuteronNumber());
3848c666 372 freeSpecN -= ndeu;
373 //
8309c1ab 374 if(freeSpecN<0) freeSpecN=0;
375 if(freeSpecP<0) freeSpecP=0;
376 AliDebug(2, Form("FreeSpn = %d, FreeSpp = %d", freeSpecN, freeSpecP));
377}
378
379//_____________________________________________________________________________
380void AliZDCDigitizer::SpectatorSignal(Int_t SpecType, Int_t numEvents,
fd9afd60 381 Float_t pm[5][5]) const
8309c1ab 382{
383// add signal of the spectators
fd9afd60 384
385 TString hfn;
386 if(SpecType == 1) { // --- Signal for projectile spectator neutrons
387 hfn = "$ALICE_ROOT/ZDC/ZNCSignal.root";
388 }
389 else if(SpecType == 2) { // --- Signal for projectile spectator protons
390 hfn = "$ALICE_ROOT/ZDC/ZPCSignal.root";
8309c1ab 391 }
fd9afd60 392 else if(SpecType == 3) { // --- Signal for target spectator neutrons
393 hfn = "$ALICE_ROOT/ZDC/ZNASignal.root";
394 }
395 else if(SpecType == 4) { // --- Signal for target spectator protons
396 hfn = "$ALICE_ROOT/ZDC/ZPASignal.root";
397 }
398
399 TFile* file = TFile::Open(hfn);
8574b308 400 if(!file || !file->IsOpen()) {
fd9afd60 401 AliError((Form(" Opening file %s failed\n",hfn.Data())));
8309c1ab 402 return;
403 }
404
405 TNtuple* zdcSignal = (TNtuple*) file->Get("ZDCSignal");
406 Int_t nentries = (Int_t) zdcSignal->GetEntries();
407
fd9afd60 408 Float_t *entry;
409 Int_t pl, i, k, iev=0, rnd[125], volume[2];
48642b09 410 for(pl=0;pl<125;pl++) rnd[pl] = 0;
8574b308 411 if(numEvents > 125) {
8309c1ab 412 AliWarning(Form("numEvents (%d) is larger than 125", numEvents));
413 numEvents = 125;
414 }
415 for(pl=0;pl<numEvents;pl++){
416 rnd[pl] = (Int_t) (9999*gRandom->Rndm());
85a96223 417 if(rnd[pl] >= 9999) rnd[pl] = 9998;
8309c1ab 418 //printf(" rnd[%d] = %d\n",pl,rnd[pl]);
419 }
420 // Sorting vector in ascending order with C function QSORT
421 qsort((void*)rnd,numEvents,sizeof(Int_t),comp);
422 do{
423 for(i=0; i<nentries; i++){
424 zdcSignal->GetEvent(i);
425 entry = zdcSignal->GetArgs();
426 if(entry[0] == rnd[iev]){
427 for(k=0; k<2; k++) volume[k] = (Int_t) entry[k+1];
48642b09 428 //
fd9afd60 429 Float_t lightQ = entry[7];
430 Float_t lightC = entry[8];
431 //
acf9550c 432 if(volume[0] != 3) { // ZN or ZP
8309c1ab 433 pm[volume[0]-1][0] += lightC;
434 pm[volume[0]-1][volume[1]] += lightQ;
48642b09 435 //printf("\n pm[%d][0] = %.0f, pm[%d][%d] = %.0f\n",(volume[0]-1),pm[volume[0]-1][0],
436 // (volume[0]-1),volume[1],pm[volume[0]-1][volume[1]]);
437 }
438 else {
8574b308 439 if(volume[1] == 1) pm[2][1] += lightC; // ZEM 1
acf9550c 440 else pm[2][2] += lightQ; // ZEM 2
48642b09 441 //printf("\n pm[2][1] = %.0f, pm[2][2] = %.0f\n",pm[2][1],pm[2][2]);
442 }
8309c1ab 443 }
444 else if(entry[0] > rnd[iev]){
445 iev++;
446 continue;
447 }
448 }
449 }while(iev<numEvents);
450
451 file->Close();
452 delete file;
453}
454
455
456//_____________________________________________________________________________
457Int_t AliZDCDigitizer::Phe2ADCch(Int_t Det, Int_t Quad, Float_t Light,
458 Int_t Res) const
459{
48642b09 460 // Evaluation of the ADC channel corresponding to the light yield Light
8a2624cc 461 Int_t vADCch = (Int_t) (Light * fPMGain[Det-1][Quad] * fADCRes[Res]);
878fa0b3 462 //printf("\t Phe2ADCch -> det %d quad %d - phe %.0f ADC %d\n", Det,Quad,Light,vADCch);
7f73eb6b 463
8a2624cc 464 return vADCch;
48642b09 465}
8309c1ab 466
48642b09 467//_____________________________________________________________________________
468Int_t AliZDCDigitizer::Pedestal(Int_t Det, Int_t Quad, Int_t Res) const
469{
8a2624cc 470 // Returns a pedestal for detector det, PM quad, channel with res.
471 //
65b16e87 472 Float_t pedValue;
abf60186 473 // Normal run
474 if(fIsCalibration == 0){
c35ed519 475 Int_t index=0, kNch=24;
83347831 476 if(Quad!=5){
c35ed519 477 if(Det==1) index = Quad+kNch*Res; // ZNC
478 else if(Det==2) index = (Quad+5)+kNch*Res; // ZPC
479 else if(Det==3) index = (Quad+9)+kNch*Res; // ZEM
480 else if(Det==4) index = (Quad+12)+kNch*Res; // ZNA
481 else if(Det==5) index = (Quad+17)+kNch*Res; // ZPA
83347831 482 }
c35ed519 483 else index = (Det-1)/3+22+kNch*Res; // Reference PMs
83347831 484 //
c35ed519 485 Float_t meanPed = fPedData->GetMeanPed(index);
486 Float_t pedWidth = fPedData->GetMeanPedWidth(index);
65b16e87 487 pedValue = gRandom->Gaus(meanPed,pedWidth);
abf60186 488 //
58e12fee 489 /*printf("\t AliZDCDigitizer::Pedestal -> det %d quad %d res %d - Ped[%d] = %d\n",
65b16e87 490 Det, Quad, Res, index,(Int_t) pedValue); // Chiara debugging!
abf60186 491 */
492 }
7f73eb6b 493 // To create calibration object
83347831 494 else{
65b16e87 495 if(Res == 0) pedValue = gRandom->Gaus((35.+10.*gRandom->Rndm()),(0.5+0.2*gRandom->Rndm())); //High gain
496 else pedValue = gRandom->Gaus((250.+100.*gRandom->Rndm()),(3.5+2.*gRandom->Rndm())); //Low gain
83347831 497 }
dbc8d7fc 498
65b16e87 499 return (Int_t) pedValue;
8309c1ab 500}
501
502//_____________________________________________________________________________
78d18275 503AliCDBStorage* AliZDCDigitizer::SetStorage(const char *uri)
8309c1ab 504{
8309c1ab 505
78d18275 506 Bool_t deleteManager = kFALSE;
48642b09 507
78d18275 508 AliCDBManager *manager = AliCDBManager::Instance();
509 AliCDBStorage *defstorage = manager->GetDefaultStorage();
48642b09 510
78d18275 511 if(!defstorage || !(defstorage->Contains("ZDC"))){
512 AliWarning("No default storage set or default storage doesn't contain ZDC!");
513 manager->SetDefaultStorage(uri);
514 deleteManager = kTRUE;
515 }
516
517 AliCDBStorage *storage = manager->GetDefaultStorage();
518
519 if(deleteManager){
520 AliCDBManager::Instance()->UnsetDefaultStorage();
521 defstorage = 0; // the storage is killed by AliCDBManager::Instance()->Destroy()
522 }
523
524 return storage;
525}
48642b09 526
78d18275 527//_____________________________________________________________________________
6024ec85 528AliZDCPedestals* AliZDCDigitizer::GetPedData() const
529{
530
531 // Getting pedestal calibration object for ZDC set
532
533 AliCDBEntry *entry = AliCDBManager::Instance()->Get("ZDC/Calib/Pedestals");
534 if(!entry) AliFatal("No calibration data loaded!");
535
536 AliZDCPedestals *calibdata = dynamic_cast<AliZDCPedestals*> (entry->GetObject());
537 if(!calibdata) AliFatal("Wrong calibration object in calibration file!");
538
539 return calibdata;
540}
541
542//_____________________________________________________________________________
543AliZDCCalib* AliZDCDigitizer::GetCalibData() const
544{
545
546 // Getting calibration object for ZDC set
547
1ee299a5 548 AliCDBEntry *entry = AliCDBManager::Instance()->Get("ZDC/Calib/EMDCalib");
6024ec85 549 if(!entry) AliFatal("No calibration data loaded!");
550
551 AliZDCCalib *calibdata = dynamic_cast<AliZDCCalib*> (entry->GetObject());
552 if(!calibdata) AliFatal("Wrong calibration object in calibration file!");
553
554 return calibdata;
555}