1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
18 ///////////////////////////////////////////////////////////////////////////////
20 // Zero Degree Calorimeter //
21 // This class contains the basic functions for the ZDCs; //
22 // functions specific to one particular geometry are //
23 // contained in the derived classes //
25 ///////////////////////////////////////////////////////////////////////////////
29 #include <TClonesArray.h>
30 #include <TGeometry.h>
37 // --- AliRoot header files
38 #include "AliDetector.h"
39 #include "AliRawDataHeader.h"
40 #include "AliRawReader.h"
41 #include "AliLoader.h"
47 #include "AliZDCHit.h"
48 #include "AliZDCSDigit.h"
49 #include "AliZDCDigit.h"
50 #include "AliZDCDigitizer.h"
51 #include "AliZDCRawStream.h"
52 #include "AliZDCCalibData.h"
53 #include "AliFstream.h"
60 //_____________________________________________________________________________
68 // Default constructor for the Zero Degree Calorimeter base class
79 //_____________________________________________________________________________
80 AliZDC::AliZDC(const char *name, const char *title) :
81 AliDetector(name,title),
87 // Standard constructor for the Zero Degree Calorimeter base class
95 fHits = new TClonesArray("AliZDCHit",1000);
96 gAlice->GetMCApp()->AddHitList(fHits);
98 char sensname[5],senstitle[25];
99 sprintf(sensname,"ZDC");
100 sprintf(senstitle,"ZDC dummy");
101 SetName(sensname); SetTitle(senstitle);
107 //____________________________________________________________________________
121 //_____________________________________________________________________________
122 AliZDC::AliZDC(const AliZDC& ZDC) :
123 AliDetector("ZDC","ZDC")
126 fNoShower = ZDC.fNoShower;
127 fCalibData = ZDC.fCalibData;
128 fZDCCalibFName = ZDC.fZDCCalibFName;
131 //_____________________________________________________________________________
132 AliZDC& AliZDC::operator=(const AliZDC& ZDC)
134 // assignement operator
136 fNoShower = ZDC.fNoShower;
137 fCalibData = ZDC.fCalibData;
138 fZDCCalibFName = ZDC.fZDCCalibFName;
142 //_____________________________________________________________________________
143 void AliZDC::AddHit(Int_t track, Int_t *vol, Float_t *hits)
146 // Add a ZDC hit to the hit list.
147 // -> We make use of 2 array of hits:
148 // [1] fHits (the usual one) that contains hits for each PRIMARY
149 // [2] fStHits that contains hits for each EVENT and is used to
150 // obtain digits at the end of each event
153 static Float_t primKinEn, xImpact, yImpact, sFlag;
155 AliZDCHit *newquad, *curprimquad;
156 newquad = new AliZDCHit(fIshunt, track, vol, hits);
157 TClonesArray &lhits = *fHits;
160 // First hit -> setting flag for primary or secondary particle
161 Int_t primary = gAlice->GetMCApp()->GetPrimary(track);
162 if(track != primary){
163 newquad->SetSFlag(1); // SECONDARY particle entering the ZDC
165 else if(track == primary){
166 newquad->SetSFlag(0); // PRIMARY particle entering the ZDC
168 sFlag = newquad->GetSFlag();
169 primKinEn = newquad->GetPrimKinEn();
170 xImpact = newquad->GetXImpact();
171 yImpact = newquad->GetYImpact();
174 newquad->SetPrimKinEn(primKinEn);
175 newquad->SetXImpact(xImpact);
176 newquad->SetYImpact(yImpact);
177 newquad->SetSFlag(sFlag);
181 for(j=0; j<fNhits; j++){
182 // If hits are equal (same track, same volume), sum them.
183 curprimquad = (AliZDCHit*) lhits[j];
184 if(*curprimquad == *newquad){
185 *curprimquad = *curprimquad+*newquad;
187 /*if(newquad->GetEnergy() != 0. || newquad->GetLightPMC() != 0. ||
188 newquad->GetLightPMQ() != 0.){
189 printf("\n\t --- Equal hits found\n");
190 curprimquad->Print("");
192 printf("\t --- Det. %d, Quad. %d: X = %f, E = %f, LightPMC = %f, LightPMQ = %f\n",
193 curprimquad->GetVolume(0),curprimquad->GetVolume(1),curprimquad->GetXImpact(),
194 curprimquad->GetEnergy(), curprimquad->GetLightPMC(), curprimquad->GetLightPMQ());
202 //Otherwise create a new hit
203 new(lhits[fNhits]) AliZDCHit(*newquad);
206 /*printf("\n\t New ZDC hit added! fNhits = %d\n", fNhits);
207 printf("\t Det. %d, Quad.t %d: X = %f, E = %f, LightPMC = %f, LightPMQ = %f\n",
208 newquad->GetVolume(0),newquad->GetVolume(1),newquad->GetXImpact(),
209 newquad->GetEnergy(), newquad->GetLightPMC(), newquad->GetLightPMQ());
214 //_____________________________________________________________________________
215 void AliZDC::BuildGeometry()
218 // Build the ROOT TNode geometry for event display
219 // in the Zero Degree Calorimeter
220 // This routine is dummy for the moment
225 const int kColorZDC = kBlue;
228 top=gAlice->GetGeometry()->GetNode("alice");
231 brik = new TBRIK("S_ZDC","ZDC box","void",300,300,5);
233 node = new TNode("ZDC","ZDC","S_ZDC",0,0,600,"");
234 node->SetLineColor(kColorZDC);
238 //____________________________________________________________________________
239 Float_t AliZDC::ZMin(void) const
241 // Minimum dimension of the ZDC module in z
245 //____________________________________________________________________________
246 Float_t AliZDC::ZMax(void) const
248 // Maximum dimension of the ZDC module in z
253 //_____________________________________________________________________________
254 void AliZDC::MakeBranch(Option_t *opt)
257 // Create Tree branches for the ZDC
261 sprintf(branchname,"%s",GetName());
263 const char *cH = strstr(opt,"H");
265 if(cH && fLoader->TreeH())
266 fHits = new TClonesArray("AliZDCHit",1000);
268 AliDetector::MakeBranch(opt);
271 //_____________________________________________________________________________
272 void AliZDC::Hits2SDigits()
274 // Create summable digits from hits
276 AliDebug(1,"\n Entering AliZDC::Hits2Digits() ");
278 fLoader->LoadHits("read");
279 fLoader->LoadSDigits("recreate");
280 AliRunLoader* runLoader = fLoader->GetRunLoader();
282 AliZDCSDigit* psdigit = &sdigit;
285 for(Int_t iEvent = 0; iEvent < runLoader->GetNumberOfEvents(); iEvent++) {
286 Float_t pmCZN = 0, pmCZP = 0, pmQZN[4], pmQZP[4], pmZEM1 = 0, pmZEM2 = 0;
287 for(Int_t i = 0; i < 4; i++) pmQZN[i] = pmQZP[i] = 0;
289 runLoader->GetEvent(iEvent);
290 TTree* treeH = fLoader->TreeH();
291 Int_t ntracks = (Int_t) treeH->GetEntries();
296 for(Int_t itrack = 0; itrack < ntracks; itrack++) {
297 treeH->GetEntry(itrack);
298 for(AliZDCHit* zdcHit = (AliZDCHit*)FirstHit(-1); zdcHit;
299 zdcHit = (AliZDCHit*)NextHit()) {
301 sector[0] = zdcHit->GetVolume(0);
302 sector[1] = zdcHit->GetVolume(1);
303 if((sector[1] < 1) || (sector[1] > 4)) {
304 Error("Hits2SDigits", "sector[0] = %d, sector[1] = %d",
305 sector[0], sector[1]);
308 Float_t lightQ = zdcHit->GetLightPMQ();
309 Float_t lightC = zdcHit->GetLightPMC();
311 if(sector[0] == 1) { //ZN
313 pmQZN[sector[1]-1] += lightQ;
314 } else if(sector[0] == 2) { //ZP
316 pmQZP[sector[1]-1] += lightQ;
317 } else if(sector[0] == 3) { //ZEM
318 if(sector[1] == 1) pmZEM1 += lightC;
319 else pmZEM2 += lightQ;
324 // create the output tree
325 fLoader->MakeTree("S");
326 TTree* treeS = fLoader->TreeS();
327 const Int_t kBufferSize = 4000;
328 treeS->Branch(GetName(), "AliZDCSDigit", &psdigit, kBufferSize);
330 // Create sdigits for ZN1
331 sector[0] = 1; // Detector = ZN1
332 sector[1] = 0; // Common PM ADC
333 new(psdigit) AliZDCSDigit(sector, pmCZN);
334 if(pmCZN > 0) treeS->Fill();
335 for(Int_t j = 0; j < 4; j++) {
336 sector[1] = j+1; // Towers PM ADCs
337 new(psdigit) AliZDCSDigit(sector, pmQZN[j]);
338 if(pmQZN[j] > 0) treeS->Fill();
341 // Create sdigits for ZP1
342 sector[0] = 2; // Detector = ZP1
343 sector[1] = 0; // Common PM ADC
344 new(psdigit) AliZDCSDigit(sector, pmCZP);
345 if(pmCZP > 0) treeS->Fill();
346 for(Int_t j = 0; j < 4; j++) {
347 sector[1] = j+1; // Towers PM ADCs
348 new(psdigit) AliZDCSDigit(sector, pmQZP[j]);
349 if(pmQZP[j] > 0) treeS->Fill();
352 // Create sdigits for ZEM
354 sector[1] = 1; // Detector = ZEM1
355 new(psdigit) AliZDCSDigit(sector, pmZEM1);
356 if(pmZEM1 > 0) treeS->Fill();
357 sector[1] = 2; // Detector = ZEM2
358 new(psdigit) AliZDCSDigit(sector, pmZEM2);
359 if(pmZEM2 > 0) treeS->Fill();
361 // write the output tree
362 fLoader->WriteSDigits("OVERWRITE");
365 fLoader->UnloadHits();
366 fLoader->UnloadSDigits();
369 //_____________________________________________________________________________
370 AliDigitizer* AliZDC::CreateDigitizer(AliRunDigitizer* manager) const
372 // Create the digitizer for ZDC
374 return new AliZDCDigitizer(manager);
377 //_____________________________________________________________________________
378 void AliZDC::Digits2Raw()
380 // Convert ZDC digits to raw data
382 // Format: 22 interger values -> ZN1 (C+Q1-4), ZP1 (C+Q1-4), ZEM1, 2, ZN (C+Q1-4), ZP2 (C+Q1-4))
383 // + 22 interger values for the out of time channels
384 // For the CAEN module V965 we have an Header, the Data Words and an End Of Block
385 // 12 channels x 2 gain chains read from 1st ADC module
386 // 10 channels x 2 gain chains read from 2nd ADC module
387 // 12 channels x 2 gain chains read from 3rd ADC module (o.o.t.)
388 // 10 channels x 2 gain chains read from 4rth ADC module (o.o.t.)
390 const int knADCData1=24, knADCData2=20;
392 UInt_t lADCData1[knADCData1];
395 UInt_t lADCData2[knADCData2];
398 UInt_t lADCData3[knADCData1];
401 UInt_t lADCData4[knADCData2];
406 fLoader->LoadDigits("read");
408 AliZDCDigit* pdigit = &digit;
409 TTree* treeD = fLoader->TreeD();
411 treeD->SetBranchAddress("ZDC", &pdigit);
412 //printf("\t AliZDC::Digits2raw -> TreeD has %d entries\n",(Int_t) treeD->GetEntries());
416 UInt_t lADCHeaderGEO = 0;
417 UInt_t lADCHeaderCRATE = 0;
418 UInt_t lADCHeaderCNT1 = knADCData1;
419 UInt_t lADCHeaderCNT2 = knADCData2;
421 lADCHeader1 = lADCHeaderGEO << 27 | 0x1 << 25 | lADCHeaderCRATE << 16 |
422 lADCHeaderCNT1 << 8 ;
424 lADCHeader2 = lADCHeaderGEO << 27 | 0x1 << 25 | lADCHeaderCRATE << 16 |
425 lADCHeaderCNT2 << 8 ;
427 lADCHeader3 = lADCHeaderGEO << 27 | 0x1 << 25 | lADCHeaderCRATE << 16 |
428 lADCHeaderCNT1 << 8 ;
430 lADCHeader4 = lADCHeaderGEO << 27 | 0x1 << 25 | lADCHeaderCRATE << 16 |
431 lADCHeaderCNT2 << 8 ;
432 //printf("\t lADCHeader1 = %x, lADCHeader2 = %x\n",lADCHeader1, lADCHeader2);
435 UInt_t lADCDataGEO = lADCHeaderGEO;
436 UInt_t lADCDataValue1[knADCData1];
437 UInt_t lADCDataValue2[knADCData2];
438 UInt_t lADCDataValue3[knADCData1];
439 UInt_t lADCDataValue4[knADCData2];
440 UInt_t lADCDataOvFlw1[knADCData1];
441 UInt_t lADCDataOvFlw2[knADCData2];
442 UInt_t lADCDataOvFlw3[knADCData1];
443 UInt_t lADCDataOvFlw4[knADCData2];
444 for(Int_t i=0; i<knADCData1 ; i++){
445 lADCDataValue1[i] = 0;
446 lADCDataOvFlw1[i] = 0;
447 lADCDataValue3[i] = 0;
448 lADCDataOvFlw3[i] = 0;
450 for(Int_t i=0; i<knADCData2 ; i++){
451 lADCDataValue2[i] = 0;
452 lADCDataOvFlw2[i] = 0;
453 lADCDataValue4[i] = 0;
454 lADCDataOvFlw4[i] = 0;
456 UInt_t lADCDataChannel = 0;
459 for(Int_t iDigit=0; iDigit<treeD->GetEntries(); iDigit++){
460 treeD->GetEntry(iDigit);
461 if(!pdigit) continue;
465 Int_t index1=0, index2=0;
466 // *** ADC1 (ZN1, ZP1, ZEM1,2) o ADC3 (ZN1, ZP1, ZEM1,2 o.o.t.)
467 if(digit.GetSector(0)==1 || digit.GetSector(0)==2 || digit.GetSector(0)==3){
468 if(digit.GetSector(0)==1 || digit.GetSector(0)==2){
469 index1 = (digit.GetSector(0)-1) + digit.GetSector(1)*4; // ZN1 or ZP1
470 lADCDataChannel = (digit.GetSector(0)-1)*8 + digit.GetSector(1);
472 else if(digit.GetSector(0)==3){ // ZEM 1,2
473 index1 = 20 + (digit.GetSector(1)-1);
474 lADCDataChannel = 5 + (digit.GetSector(1)-1)*8;
477 /*printf("\t AliZDC::Digits2raw -> det %d, quad %d, index = %d, ADCch = %d\n",
478 digit.GetSector(0),digit.GetSector(1),index1,lADCDataChannel);// Ch. debug
482 lADCDataValue1[index1] = digit.GetADCValue(0); // High gain ADC ch.
483 if(lADCDataValue1[index1] > 2047) lADCDataOvFlw1[index1] = 1;
484 lADCDataValue1[index1+2] = digit.GetADCValue(1); // Low gain ADC ch.
485 if(lADCDataValue1[index1+2] > 2047) lADCDataOvFlw1[index1+2] = 1;
487 lADCData1[index1] = lADCDataGEO << 27 | lADCDataChannel << 17 |
488 lADCDataOvFlw1[index1] << 12 | (lADCDataValue1[index1] & 0xfff);
489 lADCData1[index1+2] = lADCDataGEO << 27 | lADCDataChannel << 17 | 0x1 << 16 |
490 lADCDataOvFlw1[index1+2] << 12 | (lADCDataValue1[index1+2] & 0xfff);
493 lADCDataValue3[index1] = digit.GetADCValue(0); // High gain ADC ch.
494 if(lADCDataValue3[index1] > 2047) lADCDataOvFlw3[index1] = 1;
495 lADCDataValue3[index1+2] = digit.GetADCValue(1); // Low gain ADC ch.
496 if(lADCDataValue3[index1+2] > 2047) lADCDataOvFlw3[index1+2] = 1;
498 lADCData3[index1] = lADCDataGEO << 27 | lADCDataChannel << 17 |
499 lADCDataOvFlw3[index1] << 12 | (lADCDataValue3[index1] & 0xfff);
500 lADCData3[index1+2] = lADCDataGEO << 27 | lADCDataChannel << 17 | 0x1 << 16 |
501 lADCDataOvFlw3[index1+2] << 12 | (lADCDataValue3[index1+2] & 0xfff);
504 // *** ADC2 (ZN2, ZP2) o ADC4 (ZN2, ZP2 o.o.t.)
505 else if(digit.GetSector(0)==4 || digit.GetSector(0)==5){
506 index2 = (digit.GetSector(0)-4) + digit.GetSector(1)*4; // ZN2 or ZP2
507 lADCDataChannel = (digit.GetSector(0)-4)*8 + digit.GetSector(1);
509 /*printf("\t AliZDC::Digits2raw -> det %d, quad %d, index = %d, ADCch = %d\n",
510 digit.GetSector(0),digit.GetSector(1),index1,lADCDataChannel); // Ch. debug
514 lADCDataValue2[index2] = digit.GetADCValue(0);
515 if(lADCDataValue2[index2] > 2047) lADCDataOvFlw2[index2] = 1;
516 lADCDataValue2[index2+2] = digit.GetADCValue(1);
517 if(lADCDataValue2[index2+2] > 2047) lADCDataOvFlw2[index2+2] = 1;
519 lADCData2[index2] = lADCDataGEO << 27 | lADCDataChannel << 17 |
520 lADCDataOvFlw2[index2] << 12 | (lADCDataValue2[index2] & 0xfff);
521 lADCData2[index2+2] = lADCDataGEO << 27 | lADCDataChannel << 17 | 0x1 << 16 |
522 lADCDataOvFlw2[index2+2] << 12 | (lADCDataValue2[index2+2] & 0xfff);
525 lADCDataValue4[index2] = digit.GetADCValue(0);
526 if(lADCDataValue4[index2] > 2047) lADCDataOvFlw4[index2] = 1;
527 lADCDataValue4[index2+2] = digit.GetADCValue(1);
528 if(lADCDataValue4[index2+2] > 2047) lADCDataOvFlw4[index2+2] = 1;
530 lADCData4[index2] = lADCDataGEO << 27 | lADCDataChannel << 17 |
531 lADCDataOvFlw4[index2] << 12 | (lADCDataValue4[index2] & 0xfff);
532 lADCData4[index2+2] = lADCDataGEO << 27 | lADCDataChannel << 17 | 0x1 << 16 |
533 lADCDataOvFlw4[index2+2] << 12 | (lADCDataValue4[index2+2] & 0xfff);
536 if((index1<0) || (index1>23)) {
537 Error("Digits2Raw", "sector[0] = %d, sector[1] = %d",
538 digit.GetSector(0), digit.GetSector(1));
541 if((index2<0) || (index2>19)) {
542 Error("Digits2Raw", "sector[0] = %d, sector[1] = %d",
543 digit.GetSector(0), digit.GetSector(1));
549 /* for(Int_t i=0;i<24;i++) printf("\t ADCData1[%d] = %x\n",i,lADCData1[i]);
550 for(Int_t i=0;i<20;i++) printf("\t ADCData2[%d] = %x\n",i,lADCData2[i]);
551 for(Int_t i=0;i<24;i++) printf("\t ADCData3[%d] = %x\n",i,lADCData3[i]);
552 for(Int_t i=0;i<20;i++) printf("\t ADCData4[%d] = %x\n",i,lADCData4[i]);
556 UInt_t lADCEndBlockGEO = lADCHeaderGEO;
557 UInt_t lADCEndBlockEvCount = gAlice->GetEventNrInRun();
559 lADCEndBlock = lADCEndBlockGEO << 27 | 0x1 << 26 | lADCEndBlockEvCount;
561 //printf("\t ADCEndBlock = %d\n",lADCEndBlock);
564 // open the output file
566 strcpy(fileName,AliDAQ::DdlFileName("ZDC",0));
568 AliFstream* file = new AliFstream(fileName);
570 // write the DDL data header
571 AliRawDataHeader header;
572 header.fSize = sizeof(header) +
573 sizeof(lADCHeader1) + sizeof(lADCData1) + sizeof(lADCEndBlock) +
574 sizeof(lADCHeader2) + sizeof(lADCData2) + sizeof(lADCEndBlock) +
575 sizeof(lADCHeader3) + sizeof(lADCData3) + sizeof(lADCEndBlock) +
576 sizeof(lADCHeader4) + sizeof(lADCData4) + sizeof(lADCEndBlock);
577 /*printf("sizeof header = %d, ADCHeader1 = %d, ADCData1 = %d, ADCEndBlock = %d\n",
578 sizeof(header),sizeof(lADCHeader1),sizeof(lADCData1),sizeof(lADCEndBlock));
579 printf("sizeof header = %d, ADCHeader2 = %d, ADCData2 = %d, ADCEndBlock = %d\n",
580 sizeof(header),sizeof(lADCHeader2),sizeof(lADCData2),sizeof(lADCEndBlock));*/
581 header.SetAttribute(0); // valid data
582 file->WriteBuffer((char*)(&header), sizeof(header));
584 // write the raw data and close the file
585 file->WriteBuffer((char*) &lADCHeader1, sizeof (lADCHeader1));
586 file->WriteBuffer((char*)(lADCData1), sizeof(lADCData1));
587 file->WriteBuffer((char*) &lADCEndBlock, sizeof(lADCEndBlock));
588 file->WriteBuffer((char*) &lADCHeader2, sizeof (lADCHeader2));
589 file->WriteBuffer((char*)(lADCData2), sizeof(lADCData2));
590 file->WriteBuffer((char*) &lADCEndBlock, sizeof(lADCEndBlock));
591 file->WriteBuffer((char*) &lADCHeader3, sizeof (lADCHeader3));
592 file->WriteBuffer((char*)(lADCData3), sizeof(lADCData3));
593 file->WriteBuffer((char*) &lADCEndBlock, sizeof(lADCEndBlock));
594 file->WriteBuffer((char*) &lADCHeader4, sizeof (lADCHeader4));
595 file->WriteBuffer((char*)(lADCData4), sizeof(lADCData4));
596 file->WriteBuffer((char*) &lADCEndBlock, sizeof(lADCEndBlock));
600 fLoader->UnloadDigits();
603 //_____________________________________________________________________________
604 Bool_t AliZDC::Raw2SDigits(AliRawReader* rawReader)
606 // Convert ZDC raw data to Sdigits
608 AliLoader* loader = (gAlice->GetRunLoader())->GetLoader("ZDCLoader");
610 AliError("no ZDC loader found");
616 while(rawReader->NextEvent()){
617 (gAlice->GetRunLoader())->GetEvent(iEvent++);
618 // Create the output digit tree
619 TTree* treeS = loader->TreeS();
621 loader->MakeTree("S");
622 treeS = loader->TreeS();
626 AliZDCSDigit* psdigit = &sdigit;
627 const Int_t kBufferSize = 4000;
628 treeS->Branch("ZDC", "AliZDCSDigit", &psdigit, kBufferSize);
630 AliZDCRawStream rawStream(rawReader);
631 Int_t sector[2], ADCRes, ADCRaw, ADCPedSub, nPheVal;
633 while(rawStream.Next()){
634 if(rawStream.IsADCDataWord()){
635 //For the moment only in-time SDigits are foreseen (1st 44 raw values)
637 for(Int_t j=0; j<2; j++) sector[j] = rawStream.GetSector(j);
638 ADCRaw = rawStream.GetADCValue();
639 ADCRes = rawStream.GetADCGain();
640 //printf("\t RAw2SDigits raw%d -> RawADC[%d, %d, %d] read\n",
641 // jcount, sector[0], sector[1], ADCRaw);
643 ADCPedSub = ADCRaw - Pedestal(sector[0], sector[1], ADCRes);
644 if(ADCPedSub<0) ADCPedSub=0;
645 nPheVal = ADCch2Phe(sector[0], sector[1], ADCPedSub, ADCRes);
647 //printf("\t \t -> SDigit[%d, %d, %d] created\n",
648 // sector[0], sector[1], nPheVal);
650 new(psdigit) AliZDCSDigit(sector, (Float_t) nPheVal);
656 // write the output tree
657 fLoader->WriteSDigits("OVERWRITE");
658 fLoader->UnloadSDigits();
664 //_____________________________________________________________________________
665 Int_t AliZDC::Pedestal(Int_t Det, Int_t Quad, Int_t Res) const
667 // Returns a pedestal for detector det, PM quad, channel with res.
669 // Getting calibration object for ZDC set
670 AliCDBManager *man = AliCDBManager::Instance();
671 man->SetDefaultStorage("local://$ALICE_ROOT");
673 AliCDBEntry *entry = man->Get("ZDC/Calib/Data");
674 AliZDCCalibData *CalibData = (AliZDCCalibData*) entry->GetObject();
677 printf("\t No calibration object found for ZDC!");
682 Float_t meanPed, Pedwidth;
684 if(Det==1|| Det==2) index = 10*(Det-1)+Quad+5*Res; // ZN1, ZP1
685 else if(Det==3) index = 10*(Det-1)+(Quad-1)+Res; // ZEM
686 else if(Det==4|| Det==5) index = 10*(Det-2)+Quad+5*Res+4; // ZN2, ZP2
689 meanPed = CalibData->GetMeanPed(index);
690 Pedwidth = CalibData->GetMeanPedWidth(index);
691 PedValue = gRandom->Gaus(meanPed,Pedwidth);
693 //printf("\t AliZDC::Pedestal - det(%d, %d) - Ped[%d] = %d\n",Det, Quad, index,(Int_t) PedValue); // Chiara debugging!
697 return (Int_t) PedValue;
701 //_____________________________________________________________________________
702 Int_t AliZDC::ADCch2Phe(Int_t Det, Int_t Quad, Int_t ADCVal, Int_t Res) const
704 // Evaluation of the no. of phe produced
705 Float_t PMGain[6][5];
707 for(Int_t j = 0; j < 5; j++){
708 PMGain[0][j] = 50000.;
709 PMGain[1][j] = 100000.;
710 PMGain[2][j] = 100000.;
711 PMGain[3][j] = 50000.;
712 PMGain[4][j] = 100000.;
713 PMGain[5][j] = 100000.;
716 ADCRes[0] = 0.0000008; // ADC Resolution high gain: 200 fC/adcCh
717 ADCRes[1] = 0.0000064; // ADC Resolution low gain: 25 fC/adcCh
719 Int_t nPhe = (Int_t) (ADCVal * PMGain[Det-1][Quad] * ADCRes[Res]);
721 //printf("\t AliZDC::ADCch2Phe -> det(%d, %d) - ADC %d phe %d\n",Det,Quad,ADCVal,nPhe);
726 //______________________________________________________________________
727 void AliZDC::SetTreeAddress(){
729 // Set branch address for the Trees.
730 if(fLoader->TreeH() && (fHits == 0x0))
731 fHits = new TClonesArray("AliZDCHit",1000);
733 AliDetector::SetTreeAddress();
736 //________________________________________________________________
737 void AliZDC::CreateCalibData()
740 //if(fCalibData) delete fCalibData; // delete previous version
741 fCalibData = new AliZDCCalibData(GetName());
743 //________________________________________________________________
744 void AliZDC::WriteCalibData(Int_t option)
747 const int kCompressLevel = 9;
748 char* fnam = GetZDCCalibFName();
749 if(!fnam || fnam[0]=='\0') {
750 fnam = gSystem->ExpandPathName("$(ALICE_ROOT)/data/AliZDCCalib.root");
751 Warning("WriteCalibData","No File Name is provided, using default %s",fnam);
753 TFile* cdfile = TFile::Open(fnam,"UPDATE","",kCompressLevel);
755 // Writes Calibration Data to current directory.
756 // User MUST take care of corresponding file opening and ->cd()... !!!
757 // By default, the object is overwritten. Use 0 option for opposite.
758 if(option) option = TObject::kOverwrite;
759 if(fCalibData) fCalibData->Write(0,option);
760 else if(fCalibData) fCalibData->Write(0,option);
766 //________________________________________________________________
767 void AliZDC::LoadCalibData()
770 char* fnam = GetZDCCalibFName();
771 if(!fnam || fnam[0]=='\0') return;
772 if(!gAlice->IsFileAccessible(fnam)) {
773 Error("LoadCalibData","ZDC Calibration Data file is not accessible, %s",fnam);
776 TFile* cdfile = TFile::Open(fnam);
778 // Loads Calibration Data from current directory.
779 // User MUST take care of corresponding file opening and ->cd()...!!!
781 if(fCalibData) delete fCalibData; // delete previous version
782 TString dtname = "Calib_";
784 fCalibData = (AliZDCCalibData*) gDirectory->Get(dtname.Data());
786 Error("LoadCalibData","No Calibration data found for %s",GetName());