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 ///////////////////////////////////////////////////////////////////////////////
21 // This class contains the basic functions for the Time Of Flight //
22 // detector. Functions specific to one particular geometry are //
23 // contained in the derived classes //
25 // VERSIONE WITH 5 SYMMETRIC MODULES ALONG Z AXIS
26 // ==============================================
28 // VERSION WITH HOLES FOR PHOS AND TRD IN SPACEFRAME WITH HOLES
30 // Volume sensibile : FPAD
36 <img src="picts/AliTOFClass.gif">
42 ///////////////////////////////////////////////////////////////////////////////
45 #include <Riostream.h>
46 #include <Rstrstream.h>
58 #include <TVirtualMC.h>
61 #include "AliLoader.h"
65 #include "AliTOFRawDigit.h"
66 #include "AliTOFRawSector.h"
67 #include "AliTOFRoc.h"
68 #include "AliTOFSDigit.h"
69 #include "AliTOFdigit.h"
70 #include "AliTOFhit.h"
71 #include "AliTOFhitT0.h"
73 #include "AliTOFDigitizer.h"
77 //_____________________________________________________________________________
81 // Default constructor
90 fReconParticles = 0x0;
96 //_____________________________________________________________________________
97 AliTOF::AliTOF(const char *name, const char *title, Option_t *option)
98 : AliDetector(name,title)
101 // AliTOF standard constructor
103 // Here are fixed some important parameters
106 // Initialization of hits, sdigits and digits array
107 // added option for time zero analysis
108 fFGeom = 0x0; //skowron
111 fReconParticles= 0x0;
114 if (strstr(option,"tzero")){
115 fHits = new TClonesArray("AliTOFhitT0", 1000);
117 cout << "tzero option requires AliTOFv4T0 as TOF version (check Your Config.C)" << endl;
119 fHits = new TClonesArray("AliTOFhit", 1000);
123 Fatal("AliTOF","gAlice==0 !");
125 if (gAlice->GetMCApp()->GetHitLists())
126 gAlice->GetMCApp()->AddHitList(fHits);
127 else Error("AliTOF","gAlice->GetHitLists()==0");
130 fSDigits = new TClonesArray("AliTOFSDigit", 1000);
131 fDigits = new TClonesArray("AliTOFdigit", 1000);
137 fReconParticles = 0x0;
141 // Digitization parameters
143 // (Transfer Functions to be inserted here)
149 // General Geometrical Parameters
150 fNTof = 18; // number of sectors
153 fZlenC = 177.5;//cm length of module C
154 fZlenB = 141.0;//cm length of module B
155 fZlenA = 106.0;//cm length of module A
156 fZtof = 371.5;//cm total semi-length of TOF detector
159 fStripLn = 122.0;//cm Strip Length
160 fSpace = 5.5;//cm Space Beetween the strip and the bottom of the plate
161 fDeadBndZ= 1.5;//cm Dead Boundaries of a Strip along Z direction (width)
162 fDeadBndX= 1.0;//cm Dead Boundaries of a Strip along X direction (length)
163 fXpad = 2.5;//cm X size of a pad
164 fZpad = 3.5;//cm Z size of a pad
165 fGapA = 4.; //cm Gap beetween tilted strip in A-type plate
166 fGapB = 6.; //cm Gap beetween tilted strip in B-type plate
167 fOverSpc = 15.3;//cm Space available for sensitive layers in radial direction
168 fNpadX = 48; // Number of pads in a strip along the X direction
169 fNpadZ = 2; // Number of pads in a strip along the Z direction
170 fPadXStr = fNpadX*fNpadZ; //Number of pads per strip
171 fNStripA = 15; // number of strips in A type module
172 fNStripB = 19; // number of strips in B type module
173 fNStripC = 20; // number of strips in C type module
175 // Physical performances
179 // DAQ characteristics
180 // cfr. TOF-TDR pag. 105 for Glossary
181 // TARODA : TOF-ALICE Read Out and Data Acquisition system
182 fPadXSector = 8928; // number of pad per sector -with no holes-
183 // ((15+2*19+2*20)*(48*2))
184 fNRoc = 14; // number of Roc (Read Out Controller) (TARODA)
185 fNFec = 32; // number of Fec (Front-End electronic Card)
187 fNTdc = 32; // number of Tdc (Time to Digital Converter)
188 fNPadXRoc = (Int_t)fPadXSector/fNRoc; // number of pads for each ROC
192 //_____________________________________________________________________________
193 void AliTOF::CreateTOFFolders()
195 // create the ALICE TFolder
196 // create the ALICE TTasks
197 // create the ALICE main TFolder
198 // to be done by AliRun
200 TFolder * alice = new TFolder();
201 alice->SetNameTitle("FPAlice", "Alice Folder") ;
202 gROOT->GetListOfBrowsables()->Add(alice) ;
204 TFolder * aliceF = alice->AddFolder("folders", "Alice memory Folder") ;
205 // make it the owner of the objects that it contains
208 TFolder * geomF = aliceF->AddFolder("Geometry", "Geometry objects") ;
209 TFolder * aliceT = alice->AddFolder("tasks", "Alice tasks Folder") ;
210 // make it the owner of the objects that it contains
213 TTask * aliceDi = new TTask("(S)Digitizer", "Alice SDigitizer & Digitizer") ;
214 aliceT->Add(aliceDi);
216 TTask * aliceRe = new TTask("Reconstructioner", "Alice Reconstructioner") ;
217 aliceT->Add(aliceRe);
219 char * tempo = new char[80] ;
221 // creates the TOF Digitizer and adds it to alice main (S)Digitizer task
222 sprintf(tempo, "%sDigitizers container",GetName() ) ;
223 fDTask = new TTask(GetName(), tempo);
224 aliceDi->Add(fDTask) ;
226 // creates the TOF reconstructioner and adds it to alice main Reconstructioner task
227 sprintf(tempo, "%sReconstructioner container",GetName() ) ;
228 fReTask = new TTask(GetName(), tempo);
229 aliceRe->Add(fReTask) ;
233 // creates the TOF geometry folder
234 geomF->AddFolder("TOF", "Geometry for TOF") ;
237 //_____________________________________________________________________________
241 // it remove also the alice folder
242 // and task that TOF creates instead of AliRun
243 /* PH Temporarily commented because of problems
244 TFolder * alice = (TFolder*)gROOT->GetListOfBrowsables()->FindObject("FPAlice") ;
268 fReconParticles->Delete ();
269 delete fReconParticles;
275 //_____________________________________________________________________________
276 void AliTOF::AddHit(Int_t track, Int_t *vol, Float_t *hits)
280 // new with placement used
282 TClonesArray &lhits = *fHits;
283 new(lhits[fNhits++]) AliTOFhit(fIshunt, track, vol, hits);
286 //_____________________________________________________________________________
287 void AliTOF::AddT0Hit(Int_t track, Int_t *vol, Float_t *hits)
291 // new with placement used
293 TClonesArray &lhits = *fHits;
294 new(lhits[fNhits++]) AliTOFhitT0(fIshunt, track, vol, hits);
297 //_____________________________________________________________________________
298 void AliTOF::AddDigit(Int_t *tracks, Int_t *vol, Float_t *digits)
302 // new with placement used
304 TClonesArray &ldigits = *fDigits;
305 new (ldigits[fNdigits++]) AliTOFdigit(tracks, vol, digits);
308 //___________________________________________
309 void AliTOF::AddSDigit(Int_t tracknum, Int_t *vol, Float_t *digits)
316 TClonesArray &lSDigits = *fSDigits;
317 new(lSDigits[fNSDigits++]) AliTOFSDigit(tracknum, vol, digits);
320 //_____________________________________________________________________________
321 void AliTOF::SetTreeAddress ()
323 // Set branch address for the Hits and Digits Tree.
326 if (fLoader->TreeH())
330 if (fTZero) fHits = new TClonesArray("AliTOFhitT0", 1000);
331 else fHits = new TClonesArray("AliTOFhit", 1000);
334 AliDetector::SetTreeAddress ();
337 TTree *treeD = fLoader->TreeD();
341 branch = treeD->GetBranch (branchname);
344 if (fDigits == 0x0) fDigits = new TClonesArray("AliTOFdigit", 1000);
345 branch->SetAddress (&fDigits);
349 if (fLoader->TreeS () )
351 branch = fLoader->TreeS ()->GetBranch ("TOF");
353 if (fSDigits == 0x0) fSDigits = new TClonesArray("AliTOFSDigit", 1000);
354 branch->SetAddress (&fSDigits);
358 if (fLoader->TreeR() && fReconParticles) //I do not know where this array is created - skowron
360 branch = fLoader->TreeR()->GetBranch("TOF");
363 branch->SetAddress(&fReconParticles) ;
368 //_____________________________________________________________________________
369 void AliTOF::CreateGeometry()
372 // Common geometry code
376 <img src="picts/AliTOFv23.gif">
380 const Double_t kPi=TMath::Pi();
381 const Double_t kDegrad=kPi/180.;
383 Float_t xTof, yTof, wall;
385 // frame inbetween TOF modules
388 // Sizes of TOF module with its support etc..
389 xTof = 2.*(fRmin*TMath::Tan(10*kDegrad)-wall/2-.5);
392 // TOF module internal definitions
393 TOFpc(xTof, yTof, fZlenC, fZlenB, fZlenA, fZtof);
396 //_____________________________________________________________________________
397 void AliTOF::DrawModule() const
400 // Draw a shaded view of the common part of the TOF geometry
403 cout << " Drawing of AliTOF"<< endl;
404 // Set everything unseen
405 gMC->Gsatt("*", "seen", -1);
407 // Set ALIC mother transparent
408 gMC->Gsatt("ALIC","SEEN",0);
410 // Set the volumes visible
411 gMC->Gsatt("FTOA","SEEN",1);
412 gMC->Gsatt("FTOB","SEEN",1);
413 gMC->Gsatt("FTOC","SEEN",1);
414 gMC->Gsatt("FLTA","SEEN",1);
415 gMC->Gsatt("FLTB","SEEN",1);
416 gMC->Gsatt("FLTC","SEEN",1);
417 gMC->Gsatt("FSTR","SEEN",1);
419 gMC->Gdopt("hide", "on");
420 gMC->Gdopt("shad", "on");
421 gMC->Gsatt("*", "fill", 7);
422 gMC->SetClipBox(".");
423 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
425 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
426 gMC->Gdhead(1111, "Time Of Flight");
427 gMC->Gdman(18, 4, "MAN");
428 gMC->Gdopt("hide","off");
431 //_____________________________________________________________________________
432 void AliTOF::CreateMaterials()
435 // Defines TOF materials for all versions
436 // Revision: F. Pierella 18-VI-2002
439 Int_t isxfld = gAlice->Field()->Integ();
440 Float_t sxmgmx = gAlice->Field()->Max();
442 //--- Quartz (SiO2) to simulate float glass
443 // density tuned to have correct float glass
445 Float_t aq[2] = { 28.0855,15.9994 };
446 Float_t zq[2] = { 14.,8. };
447 Float_t wq[2] = { 1.,2. };
448 Float_t dq = 2.55; // std value: 2.2
451 // --- Freon C2F4H2 (TOF-TDR pagg.)
452 // Geant Manual CONS110-1, pag. 43 (Geant, Detector Description and Simulation Tool)
453 Float_t afre[3] = {12.011,18.998,1.007};
454 Float_t zfre[3] = { 6., 9., 1.};
455 Float_t wfre[3] = { 2., 4., 2.};
456 Float_t densfre = 0.00375;
457 // http://www.fi.infn.it/sezione/prevprot/gas/freon.html
460 //-- Isobutane quencher C4H10 (5% in the sensitive mixture)
461 Float_t aiso[2] = {12.011,1.007};
462 Float_t ziso[2] = { 6., 1.};
463 Float_t wiso[2] = { 4., 10.};
464 Float_t densiso = .......; // (g/cm3) density
465 Int_t nfre = -2; // < 0 i.e. proportion by number of atoms of each kind
466 //-- SF6 (5% in the sensitive mixture)
467 Float_t asf[3] = {32.066,18.998};
468 Float_t zsf[3] = { 16., 9.};
469 Float_t wsf[3] = { 1., 6.};
470 Float_t denssf = .....; // (g/cm3) density
471 Int_t nfre = -2; // < 0 i.e. proportion by number of atoms of each kind
474 Float_t ac[2] = {12.,16.};
475 Float_t zc[2] = { 6., 8.};
476 Float_t wc[2] = { 1., 2.};
477 Float_t dc = .001977;
479 // For mylar (C5H4O2)
480 Float_t amy[3] = { 12., 1., 16. };
481 Float_t zmy[3] = { 6., 1., 8. };
482 Float_t wmy[3] = { 5., 4., 2. };
485 // For polyethilene (CH2) - honeycomb -
486 Float_t ape[2] = { 12., 1. };
487 Float_t zpe[2] = { 6., 1. };
488 Float_t wpe[2] = { 1., 2. };
489 Float_t dpe = 0.935*0.479; //To have 1%X0 for 1cm as for honeycomb
492 Float_t ag10[4] = { 12.,1.,16.,28. };
493 Float_t zg10[4] = { 6.,1., 8.,14. };
494 Float_t wmatg10[4] = { .259,.288,.248,.205 };
495 Float_t densg10 = 1.7;
498 // plexiglass CH2=C(CH3)CO2CH3
499 Float_t aplex[3] = { 12.,1.,16.};
500 Float_t zplex[3] = { 6.,1., 8.};
501 Float_t wmatplex[3] = {5.,8.,2.};
502 Float_t densplex =1.16;
505 // ---- ALUMINA (AL203)
506 Float_t aal[2] = { 27.,16.};
507 Float_t zal[2] = { 13., 8.};
508 Float_t wmatal[2] = { 2.,3. };
509 Float_t densal = 2.3;
512 Float_t awa[2] = { 1., 16. };
513 Float_t zwa[2] = { 1., 8. };
514 Float_t wwa[2] = { 2., 1. };
519 Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 };
520 Float_t zsteel[4] = { 26.,24.,28.,14. };
521 Float_t wsteel[4] = { .715,.18,.1,.005 };
524 //AliMaterial(0, "Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
525 AliMaterial( 1, "Air$",14.61,7.3,0.001205,30423.24,67500.);
526 AliMaterial( 2, "Cu $", 63.54, 29.0, 8.96, 1.43, 14.8);
527 AliMaterial( 3, "C $", 12.01, 6.0, 2.265,18.8, 74.4);
528 AliMixture ( 4, "Polyethilene$", ape, zpe, dpe, npe, wpe);
529 AliMixture ( 5, "G10$", ag10, zg10, densg10, nlmatg10, wmatg10);
530 AliMixture ( 6, "PLE$", aplex, zplex, densplex, nplex, wmatplex);
531 AliMixture ( 7, "CO2$", ac, zc, dc, nc, wc);
532 AliMixture ( 8, "ALUMINA$", aal, zal, densal, nlmatal, wmatal);
533 AliMaterial( 9, "Al $", 26.98, 13., 2.7, 8.9, 37.2);
534 AliMaterial(10, "C-TRD$", 12.01, 6., 2.265*18.8/69.282*15./100, 18.8, 74.4); // for 15%
535 AliMixture (11, "Mylar$", amy, zmy, dmy, nmy, wmy);
536 AliMixture (12, "Freon$", afre, zfre, densfre, nfre, wfre);
537 AliMixture (13, "Glass$", aq, zq, dq, nq, wq);
538 AliMixture (14, "Water$", awa, zwa, dwa, nwa, wwa);
539 AliMixture (15, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel);
541 Float_t epsil, stmin, deemax, stemax;
544 // EPSIL = 0.1 ! Tracking precision,
545 // STEMAX = 0.1 ! Maximum displacement for multiple scattering
546 // DEEMAX = 0.1 ! Maximum fractional energy loss, DLS
550 epsil = .001; // Tracking precision,
551 stemax = -1.; // Maximum displacement for multiple scattering
552 deemax = -.3; // Maximum fractional energy loss, DLS
555 AliMedium( 1, "Air$" , 1, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
556 AliMedium( 2, "Cu $" , 2, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
557 AliMedium( 3, "C $" , 3, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
558 AliMedium( 4, "Pol$" , 4, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
559 AliMedium( 5, "G10$" , 5, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
560 AliMedium( 6, "PLE$" , 6, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
561 AliMedium( 7, "CO2$" , 7, 0, isxfld, sxmgmx, 10., -.01, -.1, .01, -.01);
562 AliMedium( 8,"ALUMINA$", 8, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
563 AliMedium( 9,"Al Frame$",9, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
564 AliMedium(10, "DME-S$", 6, 1, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
565 AliMedium(11, "C-TRD$", 10, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
566 AliMedium(12, "Myl$" , 11, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
567 AliMedium(13, "Fre$" , 12, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
568 AliMedium(14, "Fre-S$", 12, 1, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
569 AliMedium(15, "Glass$", 13, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
570 AliMedium(16, "Water$", 14, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
571 AliMedium(17, "STEEL$", 15, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
574 //_____________________________________________________________________________
575 Int_t AliTOF::DistancetoPrimitive(Int_t , Int_t ) const
578 // Returns distance from mouse pointer to detector, default version
583 //___________________________________________
584 void AliTOF::ResetHits ()
586 // Reset number of clusters and the cluster array for this detector
587 AliDetector::ResetHits ();
590 //____________________________________________
591 void AliTOF::ResetDigits ()
594 // Reset number of digits and the digits array for this detector
595 AliDetector::ResetDigits ();
598 //____________________________________________
599 void AliTOF::ResetSDigits ()
602 // Reset number of sdigits and the sdigits array for this detector
607 //_____________________________________________________________________________
611 // Initialise TOF detector after it has been built
613 // Set id of TOF sensitive volume
614 if (IsVersion() !=0) fIdSens=gMC->VolId("FPAD");
618 //____________________________________________________________________________
619 void AliTOF::MakeBranch(Option_t* option)
622 // Initializes the Branches of the TOF inside the
623 // trees written for each event.
624 // AliDetector::MakeBranch initializes just the
625 // Branch inside TreeH. Here we add the branches in
626 // TreeD, TreeS and TreeR.
628 const char *oH = strstr(option,"H");
629 if (fLoader->TreeH() && oH)
633 if (fTZero) fHits = new TClonesArray("AliTOFhitT0", 1000);
634 else fHits = new TClonesArray("AliTOFhit", 1000);
638 AliDetector::MakeBranch(option);
640 Int_t buffersize = 4000;
641 Char_t branchname[10];
642 sprintf(branchname,"%s",GetName());
644 const char *oD = strstr(option,"D");
645 const char *oS = strstr(option,"S");
646 const char *oR = strstr(option,"R");
648 if (fLoader->TreeD() && oD){
649 if (fDigits == 0x0) fDigits = new TClonesArray("AliTOFdigit", 1000);
650 MakeBranchInTree(fLoader->TreeD(), branchname, &fDigits,buffersize, 0) ;
653 if (fLoader->TreeS() && oS){
654 if (fSDigits == 0x0) fSDigits = new TClonesArray("AliTOFSDigit", 1000);
655 MakeBranchInTree(fLoader->TreeS(), branchname, &fSDigits,buffersize, 0) ;
658 if (fReconParticles && fLoader->TreeR() && oR){
659 MakeBranchInTree(fLoader->TreeR(), branchname, &fReconParticles,buffersize, 0) ;
663 //____________________________________________________________________________
664 void AliTOF::Makehits(Bool_t hits)
666 // default argument used, see AliTOF.h
667 // Enable/Disable the writing of the TOF-hits branch
669 // by default : enabled for TOFv1, v2, v3, v4
670 // disabled for TOFv0
672 if (hits && (IsVersion()!=0))
673 fIdSens = gMC->VolId("FPAD");
675 cout << "Option for writing the TOF-hits branch on TreeH: disabled" << endl;
678 //____________________________________________________________________________
679 void AliTOF::FinishEvent()
684 //___________________________________________
685 void AliTOF::SDigits2Digits()
688 // Generate digits performing merging
691 int nparticles = gAlice->GetNtrack();
692 cout << "Particles :" <<nparticles<<endl;
693 if (nparticles > 0 ) {
695 AliTOF::Hits2Digits();
699 cout<<"AliTOF::SDigits2Digits"<<endl;
702 cout<<"AliTOF::SDigits2Digits Init"<<endl;
704 cout<<"AliTOF::SDigits2Digits Digitise() "<<endl;
708 //---------------------------------------------------------------------
709 void AliTOF::SetMerger(AliTOFMerger* merger)
711 // Set pointer to merger
715 //---------------------------------------------------------------------
716 AliTOFMerger* AliTOF::Merger()
718 // Return pointer to merger
722 //---------------------------------------------------------------------
723 void AliTOF::Hits2SDigits()
726 // Use the TOF SDigitizer to make TOF SDigits
729 cout<<"AliTOF::Hits2SDigits> start...\n";
731 const char * fileHeader = fLoader->GetRunLoader()->GetFileName().Data();
732 AliTOFSDigitizer * sd = new AliTOFSDigitizer(fileHeader);
739 //---------------------------------------------------------------------
740 void AliTOF::Hits2SDigits(Int_t evNumber1, Int_t evNumber2)
743 // Use the TOF SDigitizer to make TOF SDigits
746 if ((evNumber2-evNumber1)==1)
747 cout << "<AliTOF::Hits2SDigits>: I am making sdigits for the " << evNumber1 << "th event \n";
748 else if ((evNumber2-evNumber1)>1)
749 cout << "<AliTOF::Hits2SDigits>: I am making sdigits for the events from the "
750 << evNumber1 << "th to the " << evNumber2-1 << "th \n";
752 const char * fileHeader = fLoader->GetRunLoader()->GetFileName().Data();
753 AliTOFSDigitizer * sd = new AliTOFSDigitizer(fileHeader,evNumber1,evNumber2) ;
760 //___________________________________________________________________________
761 AliDigitizer* AliTOF::CreateDigitizer(AliRunDigitizer* manager)
763 return new AliTOFDigitizer(manager);
766 //___________________________________________________________________________
767 Bool_t AliTOF::CheckOverlap(Int_t* vol, Float_t* digit,Int_t Track)
770 // Checks if 2 or more hits belong to the same pad.
771 // In this case the data assigned to the digit object
772 // are the ones of the first hit in order of Time.
773 // 2 hits from the same track on the same pad are collected.
774 // Called only by Hits2SDigits.
775 // This procedure has to be optimized in the next TOF release.
778 Bool_t overlap = kFALSE;
781 for (Int_t ndig=0; ndig<fSDigits->GetEntries(); ndig++){
782 AliTOFdigit* currentDigit = (AliTOFdigit*)(fSDigits->UncheckedAt(ndig));
783 currentDigit->GetLocation(vol2);
785 // check on digit volume
786 for (Int_t i=0;i<=4;i++){
788 if (vol[i]!=vol2[i]) idem=kFALSE;}
790 if (idem){ // same pad fired
791 Float_t tdc2 = digit[0];
792 Float_t tdc1 = currentDigit->GetTdc();
794 // we separate two digits on the same pad if
795 // they are separated in time by at least 25 ns
796 // remember that tdc time is given in ps
798 if (TMath::Abs(tdc1-tdc2)<25000){
799 // in case of overlap we take the earliest
801 currentDigit->SetTdc(tdc2);
802 currentDigit->SetAdc(digit[1]);
805 currentDigit->SetTdc(tdc1);
806 currentDigit->SetAdc(digit[1]);
808 currentDigit->AddTrack(Track); // add track number in the track array
814 } // close if (idem) -> two digits on the same TOF pad
816 } // end loop on existing sdigits
822 //____________________________________________________________________________
823 void AliTOF::Digits2Raw(Int_t evNumber)
826 // Starting from digits, writes the
827 // Raw Data objects, i.e. a
828 // TClonesArray of 18 AliTOFRawSector objects
833 // do nothing if no particles
834 Int_t nparticles = gAlice->GetEvent(evNumber);
835 if (nparticles <= 0) return;
837 tD = gAlice->TreeD();
839 TClonesArray* tofdigits = this->Digits();
840 Int_t ndigits = tofdigits->GetEntriesFast();
842 TClonesArray* rawsectors = new TClonesArray("AliTOFRawSector",fNTof+2);
844 for (Int_t isect=1;isect<=fNTof;isect++){
845 AliTOFRawSector* currentSector = (AliTOFRawSector*)rawsectors->UncheckedAt(isect);
846 TClonesArray* rocData = (TClonesArray*)currentSector->GetRocData();
848 for (Int_t digit=0; digit<ndigits; digit++){
849 AliTOFdigit* currentDigit = (AliTOFdigit*)tofdigits->UncheckedAt(digit);
850 Int_t sector = currentDigit->GetSector();
852 Int_t pad = currentDigit -> GetTotPad();
853 Int_t roc = (Int_t)(pad/fNPadXRoc)-1;
854 if (roc>=fNRoc) printf("Wrong n. of ROC ! Roc = %i",roc);
855 Int_t padRoc = (Int_t) pad%fNPadXRoc;
856 Int_t fec = (Int_t)(padRoc/fNFec)-1;
857 Int_t tdc = (Int_t)(padRoc%fNFec)-1;
858 Float_t time = currentDigit->GetTdc();
859 Float_t charge = currentDigit->GetAdc();
860 AliTOFRoc* currentROC = (AliTOFRoc*)rocData->UncheckedAt(roc);
862 currentROC->AddItem(fec, tdc, error, charge, time);
863 } // close if (sector==isect) i.e. end loop on digits for the current sector
864 } // end loop on TOF digits
866 UInt_t totSize=16,rocSize=0;
867 UInt_t rocHead[14],rocChek[14];
868 UInt_t globalCheckSum=0;
870 for (UInt_t iRoc = 1; iRoc<(UInt_t)fNRoc; iRoc++){
871 AliTOFRoc* currentRoc = (AliTOFRoc*)rocData->UncheckedAt(iRoc);
872 rocSize = currentRoc->GetItems()*2+1;
873 totSize += rocSize*4;
874 if (rocSize>=TMath::Power(2,16)) rocSize=0;
875 rocHead[iRoc] = iRoc<<28;
876 rocHead[iRoc] += rocSize;
877 rocChek[iRoc] = currentRoc->GetCheckSum();
878 Int_t headCheck = currentRoc->BitCount(rocHead[iRoc]);
879 globalCheckSum += headCheck;
880 globalCheckSum += rocChek[iRoc];
883 AliTOFRoc* dummyRoc = new AliTOFRoc();
885 if (totSize>=TMath::Power(2,24)) totSize=0;
886 UInt_t header = totSize;
887 UInt_t sectId = ((UInt_t)isect)<<24;
889 globalCheckSum += dummyRoc->BitCount(header);
890 currentSector->SetGlobalCS(globalCheckSum);
891 currentSector->SetHeader(header);
895 //____________________________________________________________________________
896 void AliTOF::Raw2Digits(Int_t evNumber)
899 // Converts Raw Data objects into digits objects.
900 // We schematize the raw data with a
901 // TClonesArray of 18 AliTOFRawSector objects
913 Int_t nparticles = gAlice->GetEvent(evNumber);
914 if (nparticles <= 0) return;
916 tD = gAlice->TreeD();
918 TClonesArray* rawsectors = new TClonesArray("AliTOFRawSector",fNTof+2);
920 for(Int_t nSec=1; nSec<=fNTof; nSec++){
921 AliTOFRawSector* currentSector = (AliTOFRawSector*)rawsectors->UncheckedAt(nSec);
922 TClonesArray* rocData = (TClonesArray*)currentSector->GetRocData();
923 for(Int_t nRoc=1; nRoc<=14; nRoc++){
924 AliTOFRoc* currentRoc = (AliTOFRoc*)rocData->UncheckedAt(nRoc);
925 Int_t currentItems = currentRoc->GetItems();
926 for(Int_t item=1; item<currentItems; item++){
927 Int_t nPad = currentRoc->GetTotPad(item);
929 Int_t nStrip = (Int_t)(nPad/fPadXStr)+1;
931 if (nStrip<=fNStripC+2*fNStripB+fNStripA) nPlate = 4;
932 if (nStrip<=fNStripC+fNStripB+fNStripA) nPlate = 3;
933 if (nStrip<=fNStripC+fNStripB) nPlate = 2;
934 if (nStrip<=fNStripC) nPlate = 1;
938 case 2: nStrip -= (fNStripC);
940 case 3: nStrip -= (fNStripC+fNStripB);
942 case 4: nStrip -= (fNStripC+fNStripB+fNStripA);
944 case 5: nStrip -= (fNStripC+2*fNStripB+fNStripA);
948 Int_t pad = nPad%fPadXStr;
949 if (pad==0) pad=fPadXStr;
950 Int_t nPadX=0, nPadZ=0;
951 (pad>fNpadX)? nPadX -= fNpadX : nPadX = pad ;
953 (pad>fNpadX)? nPadZ = 2 : nPadZ = 1 ;
956 Float_t tdc = currentRoc->GetTime(item,error);
957 if (!error) digit[0]=tdc;
958 digit[1] = currentRoc->GetCharge(item);
959 AddDigit(tracks,vol,digit);
964 tD->Write(0,TObject::kOverwrite);
967 ////////////////////////////////////////////////////////////////////////
968 void AliTOF::RecreateSDigitsArray() {
970 // delete TClonesArray fSDigits and create it again
971 // needed for backward compatability with PPR test production
974 fSDigits = new TClonesArray("AliTOFSDigit", 1000);
976 ////////////////////////////////////////////////////////////////////////
977 void AliTOF::CreateSDigitsArray() {
979 // create TClonesArray fSDigits
980 // needed for backward compatability with PPR test production
982 fSDigits = new TClonesArray("AliTOFSDigit", 1000);