1 /**************************************************************************
2 * Copyright(c) 1998-2000, 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 **************************************************************************/
16 //_________________________________________________________________________//
18 // This is a TTask that makes TOF-Digits out of TOF-SDigits. //
19 // The simulation of the detector is performed at sdigits level: //
20 // during digitization the unique task is the sum of all sdigits in the //
22 // Digits are written to TreeD in branch "TOF". //
24 // -- Author : F. Pierella (Bologna University) pierella@bo.infn.it //
26 //_________________________________________________________________________//
28 #include <Riostream.h>
35 #include "AliLoader.h"
37 #include "AliRunDigitizer.h"
38 #include "AliRunLoader.h"
41 #include "AliTOFCal.h"
42 #include "AliTOFcalib.h"
43 #include "AliTOFChannel.h"
44 #include "AliTOFDigitizer.h"
45 #include "AliTOFdigit.h"
46 #include "AliTOFHitMap.h"
47 #include "AliTOFGeometryV5.h"
48 #include "AliTOFSDigit.h"
51 ClassImp(AliTOFDigitizer)
53 //___________________________________________
54 AliTOFDigitizer::AliTOFDigitizer() :
61 // Default ctor - don't use it
64 //___________________________________________
65 AliTOFDigitizer::AliTOFDigitizer(AliRunDigitizer* manager):
66 AliDigitizer(manager),
72 //ctor with RunDigitizer
75 //------------------------------------------------------------------------
76 AliTOFDigitizer::AliTOFDigitizer(const AliTOFDigitizer &source):
84 this->fDigits=source.fDigits;
85 this->fSDigitsArray=source.fSDigitsArray;
86 this->fhitMap=source.fhitMap;
87 this->fGeom=source.fGeom;
91 //------------------------------------------------------------------------
92 AliTOFDigitizer& AliTOFDigitizer::operator=(const AliTOFDigitizer &source)
95 this->fDigits=source.fDigits;
96 this->fSDigitsArray=source.fSDigitsArray;
97 this->fhitMap=source.fhitMap;
98 this->fGeom=source.fGeom;
103 //------------------------------------------------------------------------
104 AliTOFDigitizer::~AliTOFDigitizer()
109 //---------------------------------------------------------------------
111 void AliTOFDigitizer::Exec(Option_t* /*option*/)
114 // Perform digitization and merging.
115 // The algorithm is the following:
116 // - a hitmap is created to check if a pad is already activated;
117 // - an sdigits container is created to collect all sdigits from
119 // - sdigits are summed using the hitmap;
120 // - the sdigits container is used to create the array of AliTOFdigit.
126 // get the ptr to TOF detector
127 AliTOF * tof = (AliTOF *) gAlice->GetDetector("TOF") ;
131 sprintf (branchname, "%s", tof->GetName ());
133 fDigits=new TClonesArray("AliTOFdigit",4000);
135 AliRunLoader* outrl = AliRunLoader::GetRunLoader(fManager->GetOutputFolderName());
138 AliError("Can not find Run Loader in output folder.");
143 TFile *in=(TFile*)gFile;
144 TDirectory *savedir=gDirectory;
147 AliWarning("Geometry file is not open default TOF geometry will be used");
148 fGeom = new AliTOFGeometryV5();
152 fGeom = (AliTOFGeometry*)in->Get("TOFgeometry");
157 AliLoader* outgime = outrl->GetLoader("TOFLoader");
160 AliError("Can not get TOF Loader from Output Run Loader.");
164 TTree* treeD = outgime->TreeD();
167 outgime->MakeTree("D");
168 treeD = outgime->TreeD();
170 //Make branch for digits (to be created in Init())
171 tof->MakeBranchInTree(treeD,branchname,&fDigits,4000);
173 // container for all summed sdigits (to be created in Init())
174 fSDigitsArray=new TClonesArray("AliTOFSDigit",1000);
176 // create hit map (to be created in Init())
177 fhitMap = new AliTOFHitMap(fSDigitsArray, fGeom);
179 // Loop over files to digitize
181 for (Int_t inputFile=0; inputFile<fManager->GetNinputs();
183 ReadSDigit(inputFile);
189 // free used memory for Hit Map in current event
191 fSDigitsArray->Delete();
192 delete fSDigitsArray;
196 outgime->WriteDigits("OVERWRITE");
197 outgime->UnloadDigits();
203 //---------------------------------------------------------------------
205 void AliTOFDigitizer::CreateDigits()
207 // loop on sdigits container to fill the AliTOFdigit TClonesArray
208 // start digitizing all the collected sdigits
210 Int_t ndump=0; // dump the first ndump created digits for each event
212 // get the total number of collected sdigits
213 Int_t ndig = fSDigitsArray->GetEntriesFast();
215 for (Int_t k = 0; k < ndig; k++) {
217 Int_t vol[5]; // location for a digit
218 for (Int_t i=0; i<5; i++) vol[i] = -1;
220 // Get the information for this digit
221 AliTOFSDigit *tofsdigit = (AliTOFSDigit *) fSDigitsArray->UncheckedAt(k);
223 Int_t nslot=tofsdigit->GetNDigits(); // get the number of slots
224 // for current sdigit
226 // TOF sdigit volumes (always the same for all slots)
227 Int_t sector = tofsdigit->GetSector(); // range [0-17]
228 Int_t plate = tofsdigit->GetPlate(); // range [0- 4]
229 Int_t strip = tofsdigit->GetStrip(); // range [0-14/18/19]
230 Int_t padz = tofsdigit->GetPadz(); // range [0- 1]
231 Int_t padx = tofsdigit->GetPadx(); // range [0-47]
239 //--------------------- QA section ----------------------
240 // in the while, I perform QA
241 Bool_t isSDigitBad = (sector<0 || sector>17 || plate<0 || plate >4 || padz<0 || padz>1 || padx<0 || padx>47);
244 //AliFatal("strange sdigit found");
245 AliFatal(Form("strange sdigit found %3i %2i %2i %3i %3i", sector, plate, padz, padx, strip));
247 //-------------------------------------------------------
249 //------------------- Dump section ----------------------
251 cout << k << "-th | " << "Sector " << sector << " | Plate " << plate << " | Strip " << strip << " | PadZ " << padz << " | PadX " << padx << endl;
252 cout << k << "-th sdigit" << endl;
253 cout << "----------------------------------------------------"<< endl;
255 // ------------------------------------------------------
257 // start loop on number of slots for current sdigit
258 for (Int_t islot = 0; islot < nslot; islot++) {
259 Float_t digit[4] = {-1.,-1.,-1.,-1.}; // TOF digit variables
260 Int_t tracknum[AliTOFSDigit::kMAXDIGITS]; // contributing tracks for the current slot
262 Float_t tdc=tofsdigit->GetTdc(islot); digit[0]=tdc;
263 Float_t adc=tofsdigit->GetAdc(islot); digit[1]=adc;
265 tracknum[0]=tofsdigit->GetTrack(islot,0);
266 tracknum[1]=tofsdigit->GetTrack(islot,1);
267 tracknum[2]=tofsdigit->GetTrack(islot,2);
269 // new with placement must be used
270 // adding a TOF digit for each slot
271 TClonesArray &aDigits = *fDigits;
272 Int_t last=fDigits->GetEntriesFast();
273 new (aDigits[last]) AliTOFdigit(tracknum, vol, digit);
277 } // end loop on sdigits - end digitizing all collected sdigits
279 //Insert Decalibration
281 AliTOFcalib * calib = new AliTOFcalib(fGeom);
282 InitDecalibration(calib);
283 DecalibrateTOFSignal(calib);
287 //---------------------------------------------------------------------
289 void AliTOFDigitizer::ReadSDigit(Int_t inputFile )
291 // Read sdigits for current event and inputFile;
292 // store them into the sdigits container
293 // and update the hit map
294 // SDigits from different files are assumed to
295 // be created with the same simulation parameters.
297 // get the treeS from manager
298 AliRunLoader* rl = AliRunLoader::GetRunLoader(fManager->GetInputFolderName(inputFile));
301 AliError(Form("Can not find Run Loader in input %d folder.",inputFile));
305 AliLoader* gime = rl->GetLoader("TOFLoader");
308 AliError(Form("Can not get TOF Loader from Input %d Run Loader.",inputFile));
312 TTree* currentTreeS=gime->TreeS();
313 if (currentTreeS == 0x0)
315 Int_t retval = gime->LoadSDigits();
318 AliError(Form("Error occured while loading S. Digits for Input %d",inputFile));
321 currentTreeS=gime->TreeS();
322 if (currentTreeS == 0x0)
324 AliError(Form("Can not get S. Digits Tree for Input %d",inputFile));
328 // get the branch TOF inside the treeS
329 TClonesArray * sdigitsDummyContainer= new TClonesArray("AliTOFSDigit", 1000);
331 // check if the branch exist
332 TBranch* tofBranch=currentTreeS->GetBranch("TOF");
335 AliFatal(Form("TOF branch not found for input %d",inputFile));
338 tofBranch->SetAddress(&sdigitsDummyContainer);
340 Int_t nEntries = (Int_t)tofBranch->GetEntries();
342 // Loop through all entries in the tree
345 for (Int_t iEntry = 0; iEntry < nEntries; iEntry++) {
348 nbytes += tofBranch->GetEvent(iEntry);
350 // Get the number of sdigits
351 Int_t ndig = sdigitsDummyContainer->GetEntriesFast();
353 for (Int_t k=0; k<ndig; k++) {
354 AliTOFSDigit *tofSdigit= (AliTOFSDigit*) sdigitsDummyContainer->UncheckedAt(k);
356 Int_t vol[5]; // location for a sdigit
357 for (Int_t i=0; i<5; i++) vol[i] = -1;
359 // check the sdigit volume
360 vol[0] = tofSdigit->GetSector();
361 vol[1] = tofSdigit->GetPlate();
362 vol[2] = tofSdigit->GetStrip();
363 vol[3] = tofSdigit->GetPadx();
364 vol[4] = tofSdigit->GetPadz();
366 if (fhitMap->TestHit(vol) != kEmpty) {
367 AliTOFSDigit *sdig = static_cast<AliTOFSDigit*>(fhitMap->GetHit(vol));
368 sdig->Update(tofSdigit);
372 CollectSDigit(tofSdigit); // collect the current sdigit
373 fhitMap->SetHit(vol); // update the hitmap for location vol
375 } // if (hitMap->TestHit(vol) != kEmpty)
377 } // for (Int_t k=0; k<ndig; k++)
378 sdigitsDummyContainer->Delete();
380 } // end loop on entries
382 delete sdigitsDummyContainer;
387 //_____________________________________________________________________________
388 void AliTOFDigitizer::CollectSDigit(AliTOFSDigit * sdigit)
391 // Add a TOF sdigit in container
392 // new with placement must be used
393 TClonesArray &aSDigitsArray = *fSDigitsArray;
394 Int_t last=fSDigitsArray->GetEntriesFast();
395 // make a copy of the current sdigit and
396 // put it into tmp array
397 new (aSDigitsArray[last]) AliTOFSDigit(*sdigit);
400 //_____________________________________________________________________________
401 void AliTOFDigitizer::InitDecalibration( AliTOFcalib *calib) const {
402 // calib->ReadSimParFromCDB("TOF/Calib", 0); // original
403 calib->ReadSimParFromCDB("TOF/Calib", -1); // use AliCDBManager's number
405 //---------------------------------------------------------------------
406 void AliTOFDigitizer::DecalibrateTOFSignal( AliTOFcalib *calib){
408 // Read Calibration parameters from the CDB
410 AliTOFCal * cal= calib->GetTOFCalSimArray();
412 AliDebug(2,Form("Size of AliTOFCal = %i",cal->NPads()));
413 for (Int_t ipad = 0 ; ipad<cal->NPads(); ipad++){
414 AliTOFChannel *calChannel = cal->GetChannel(ipad);
416 for (Int_t j = 0; j<6; j++){
417 par[j]=calChannel->GetSlewPar(j);
421 // Initialize Quantities to Simulate ToT Spectra
424 TH1F * hToT= calib->GetTOFSimToT();
425 Int_t nbins = hToT->GetNbinsX();
426 Float_t delta = hToT->GetBinWidth(1);
427 Float_t maxch = hToT->GetBinLowEdge(nbins)+delta;
428 Float_t minch = hToT->GetBinLowEdge(1);
429 Float_t max=0,min=0; //maximum and minimum value of the distribution
430 Int_t maxbin=0,minbin=0; //maximum and minimum bin of the distribution
431 for (Int_t ii=nbins; ii>0; ii--){
432 if (hToT->GetBinContent(ii)!= 0) {
433 max = maxch - (nbins-ii-1)*delta;
437 for (Int_t j=1; j<nbins; j++){
438 if (hToT->GetBinContent(j)!= 0) {
439 min = minch + (j-1)*delta;
445 Float_t maxToTDistr=hToT->GetMaximum();
448 // Loop on TOF Digits
450 Bool_t dbEntry=kFALSE;
451 Int_t ndigits = fDigits->GetEntriesFast();
452 for (Int_t i=0;i<ndigits;i++){
453 AliTOFdigit * dig = (AliTOFdigit*)fDigits->At(i);
455 detId[0] = dig->GetSector();
456 detId[1] = dig->GetPlate();
457 detId[2] = dig->GetStrip();
458 detId[3] = dig->GetPadz();
459 detId[4] = dig->GetPadx();
460 // For Data with no Miscalibration, set ToT signal == Adc
461 dig->SetToT(dig->GetAdc());
462 if(hToT->GetEntries()>0){
466 while (simToT <= triy){
467 trix = gRandom->Rndm(i);
468 triy = gRandom->Rndm(i);
469 trix = (maxToT-minToT)*trix + minToT;
470 triy = maxToTDistr*triy;
471 Int_t binx=hToT->FindBin(trix);
472 simToT=hToT->GetBinContent(binx);
474 // Setting realistic ToT signal (only for Miscalibrated Data)
477 Int_t index = calib->GetIndex(detId);
478 AliTOFChannel *calChannel = cal->GetChannel(index);
479 // time slewing parameters
481 for (Int_t j = 0; j<6; j++){
482 par[j]=calChannel->GetSlewPar(j);
483 if(par[j]!=0)dbEntry=kTRUE;
485 // the global time shift
486 Float_t timedelay = calChannel->GetDelay();
487 Float_t tToT= dig->GetToT();
488 dig->SetTdcND(dig->GetTdc());
489 Float_t tdc = ((dig->GetTdc())*AliTOFGeometry::TdcBinWidth()+32)*1.E-3; //tof signal in ns
490 // add slewing effect
491 Float_t timeoffset=par[0] + tToT*(par[1] +tToT*(par[2] +tToT*(par[3] +tToT*(par[4] +tToT*par[5]))));
492 Float_t timeSlewed = tdc+timeoffset;
493 // add global time shift
494 timeSlewed = timeSlewed + timedelay;
496 // Setting Decalibrated Time signal
497 dig->SetTdc((timeSlewed*1E3-32)/AliTOFGeometry::TdcBinWidth());
500 if(hToT->GetEntries()<=0 || !dbEntry){
501 AliDebug(1,"Standard Production, no miscalibrated digits");
503 AliDebug(1,"Miscalibrated digits");