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"
75 //_____________________________________________________________________________
79 // Default constructor
88 fReconParticles = 0x0;
94 //_____________________________________________________________________________
95 AliTOF::AliTOF(const char *name, const char *title, Option_t *option)
96 : AliDetector(name,title)
99 // AliTOF standard constructor
101 // Here are fixed some important parameters
104 // Initialization of hits, sdigits and digits array
105 // added option for time zero analysis
106 fFGeom = 0x0; //skowron
109 fReconParticles= 0x0;
112 if (strstr(option,"tzero")){
113 fHits = new TClonesArray("AliTOFhitT0", 1000);
115 cout << "tzero option requires AliTOFv4T0 as TOF version (check Your Config.C)" << endl;
117 fHits = new TClonesArray("AliTOFhit", 1000);
120 gAlice->AddHitList(fHits);
122 fSDigits = new TClonesArray("AliTOFSDigit", 1000);
123 fDigits = new TClonesArray("AliTOFdigit", 1000);
129 fReconParticles = 0x0;
133 // Digitization parameters
135 // (Transfer Functions to be inserted here)
141 // General Geometrical Parameters
142 fNTof = 18; // number of sectors
145 fZlenC = 177.5;//cm length of module C
146 fZlenB = 141.0;//cm length of module B
147 fZlenA = 106.0;//cm length of module A
148 fZtof = 371.5;//cm total semi-length of TOF detector
151 fStripLn = 122.0;//cm Strip Length
152 fSpace = 5.5;//cm Space Beetween the strip and the bottom of the plate
153 fDeadBndZ= 1.5;//cm Dead Boundaries of a Strip along Z direction (width)
154 fDeadBndX= 1.0;//cm Dead Boundaries of a Strip along X direction (length)
155 fXpad = 2.5;//cm X size of a pad
156 fZpad = 3.5;//cm Z size of a pad
157 fGapA = 4.; //cm Gap beetween tilted strip in A-type plate
158 fGapB = 6.; //cm Gap beetween tilted strip in B-type plate
159 fOverSpc = 15.3;//cm Space available for sensitive layers in radial direction
160 fNpadX = 48; // Number of pads in a strip along the X direction
161 fNpadZ = 2; // Number of pads in a strip along the Z direction
162 fPadXStr = fNpadX*fNpadZ; //Number of pads per strip
163 fNStripA = 15; // number of strips in A type module
164 fNStripB = 19; // number of strips in B type module
165 fNStripC = 20; // number of strips in C type module
167 // Physical performances
171 // DAQ characteristics
172 // cfr. TOF-TDR pag. 105 for Glossary
173 // TARODA : TOF-ALICE Read Out and Data Acquisition system
174 fPadXSector = 8928; // number of pad per sector -with no holes-
175 // ((15+2*19+2*20)*(48*2))
176 fNRoc = 14; // number of Roc (Read Out Controller) (TARODA)
177 fNFec = 32; // number of Fec (Front-End electronic Card)
179 fNTdc = 32; // number of Tdc (Time to Digital Converter)
180 fNPadXRoc = (Int_t)fPadXSector/fNRoc; // number of pads for each ROC
184 //_____________________________________________________________________________
185 void AliTOF::CreateTOFFolders()
187 // create the ALICE TFolder
188 // create the ALICE TTasks
189 // create the ALICE main TFolder
190 // to be done by AliRun
192 TFolder * alice = new TFolder();
193 alice->SetNameTitle("FPAlice", "Alice Folder") ;
194 gROOT->GetListOfBrowsables()->Add(alice) ;
196 TFolder * aliceF = alice->AddFolder("folders", "Alice memory Folder") ;
197 // make it the owner of the objects that it contains
200 TFolder * geomF = aliceF->AddFolder("Geometry", "Geometry objects") ;
201 TFolder * aliceT = alice->AddFolder("tasks", "Alice tasks Folder") ;
202 // make it the owner of the objects that it contains
205 TTask * aliceDi = new TTask("(S)Digitizer", "Alice SDigitizer & Digitizer") ;
206 aliceT->Add(aliceDi);
208 TTask * aliceRe = new TTask("Reconstructioner", "Alice Reconstructioner") ;
209 aliceT->Add(aliceRe);
211 char * tempo = new char[80] ;
213 // creates the TOF Digitizer and adds it to alice main (S)Digitizer task
214 sprintf(tempo, "%sDigitizers container",GetName() ) ;
215 fDTask = new TTask(GetName(), tempo);
216 aliceDi->Add(fDTask) ;
218 // creates the TOF reconstructioner and adds it to alice main Reconstructioner task
219 sprintf(tempo, "%sReconstructioner container",GetName() ) ;
220 fReTask = new TTask(GetName(), tempo);
221 aliceRe->Add(fReTask) ;
225 // creates the TOF geometry folder
226 geomF->AddFolder("TOF", "Geometry for TOF") ;
229 //_____________________________________________________________________________
233 // it remove also the alice folder
234 // and task that TOF creates instead of AliRun
235 /* PH Temporarily commented because of problems
236 TFolder * alice = (TFolder*)gROOT->GetListOfBrowsables()->FindObject("FPAlice") ;
260 fReconParticles->Delete ();
261 delete fReconParticles;
267 //_____________________________________________________________________________
268 void AliTOF::AddHit(Int_t track, Int_t *vol, Float_t *hits)
272 // new with placement used
274 TClonesArray &lhits = *fHits;
275 new(lhits[fNhits++]) AliTOFhit(fIshunt, track, vol, hits);
278 //_____________________________________________________________________________
279 void AliTOF::AddT0Hit(Int_t track, Int_t *vol, Float_t *hits)
283 // new with placement used
285 TClonesArray &lhits = *fHits;
286 new(lhits[fNhits++]) AliTOFhitT0(fIshunt, track, vol, hits);
289 //_____________________________________________________________________________
290 void AliTOF::AddDigit(Int_t *tracks, Int_t *vol, Float_t *digits)
294 // new with placement used
296 TClonesArray &ldigits = *fDigits;
297 new (ldigits[fNdigits++]) AliTOFdigit(tracks, vol, digits);
300 //___________________________________________
301 void AliTOF::AddSDigit(Int_t tracknum, Int_t *vol, Float_t *digits)
308 TClonesArray &lSDigits = *fSDigits;
309 new(lSDigits[fNSDigits++]) AliTOFSDigit(tracknum, vol, digits);
312 //_____________________________________________________________________________
313 void AliTOF::SetTreeAddress ()
315 // Set branch address for the Hits and Digits Tree.
318 if (fLoader->TreeH())
322 if (fTZero) fHits = new TClonesArray("AliTOFhitT0", 1000);
323 else fHits = new TClonesArray("AliTOFhit", 1000);
326 AliDetector::SetTreeAddress ();
329 TTree *treeD = fLoader->TreeD();
333 branch = treeD->GetBranch (branchname);
336 if (fDigits == 0x0) fDigits = new TClonesArray("AliTOFdigit", 1000);
337 branch->SetAddress (&fDigits);
341 if (fLoader->TreeS () )
343 branch = fLoader->TreeS ()->GetBranch ("TOF");
345 if (fSDigits == 0x0) fSDigits = new TClonesArray("AliTOFSDigit", 1000);
346 branch->SetAddress (&fSDigits);
350 if (fLoader->TreeR() && fReconParticles) //I do not know where this array is created - skowron
352 branch = fLoader->TreeR()->GetBranch("TOF");
355 branch->SetAddress(&fReconParticles) ;
360 //_____________________________________________________________________________
361 void AliTOF::CreateGeometry()
364 // Common geometry code
368 <img src="picts/AliTOFv23.gif">
372 const Double_t kPi=TMath::Pi();
373 const Double_t kDegrad=kPi/180.;
375 Float_t xTof, yTof, wall;
377 // frame inbetween TOF modules
380 // Sizes of TOF module with its support etc..
381 xTof = 2.*(fRmin*TMath::Tan(10*kDegrad)-wall/2-.5);
384 // TOF module internal definitions
385 TOFpc(xTof, yTof, fZlenC, fZlenB, fZlenA, fZtof);
388 //_____________________________________________________________________________
389 void AliTOF::DrawModule() const
392 // Draw a shaded view of the common part of the TOF geometry
395 cout << " Drawing of AliTOF"<< endl;
396 // Set everything unseen
397 gMC->Gsatt("*", "seen", -1);
399 // Set ALIC mother transparent
400 gMC->Gsatt("ALIC","SEEN",0);
402 // Set the volumes visible
403 gMC->Gsatt("FTOA","SEEN",1);
404 gMC->Gsatt("FTOB","SEEN",1);
405 gMC->Gsatt("FTOC","SEEN",1);
406 gMC->Gsatt("FLTA","SEEN",1);
407 gMC->Gsatt("FLTB","SEEN",1);
408 gMC->Gsatt("FLTC","SEEN",1);
409 gMC->Gsatt("FSTR","SEEN",1);
411 gMC->Gdopt("hide", "on");
412 gMC->Gdopt("shad", "on");
413 gMC->Gsatt("*", "fill", 7);
414 gMC->SetClipBox(".");
415 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
417 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
418 gMC->Gdhead(1111, "Time Of Flight");
419 gMC->Gdman(18, 4, "MAN");
420 gMC->Gdopt("hide","off");
423 //_____________________________________________________________________________
424 void AliTOF::CreateMaterials()
427 // Defines TOF materials for all versions
428 // Revision: F. Pierella 18-VI-2002
431 Int_t isxfld = gAlice->Field()->Integ();
432 Float_t sxmgmx = gAlice->Field()->Max();
434 //--- Quartz (SiO2) to simulate float glass
435 // density tuned to have correct float glass
437 Float_t aq[2] = { 28.0855,15.9994 };
438 Float_t zq[2] = { 14.,8. };
439 Float_t wq[2] = { 1.,2. };
440 Float_t dq = 2.55; // std value: 2.2
443 // --- Freon C2F4H2 (TOF-TDR pagg.)
444 // Geant Manual CONS110-1, pag. 43 (Geant, Detector Description and Simulation Tool)
445 Float_t afre[3] = {12.011,18.998,1.007};
446 Float_t zfre[3] = { 6., 9., 1.};
447 Float_t wfre[3] = { 2., 4., 2.};
448 Float_t densfre = 0.00375;
449 // http://www.fi.infn.it/sezione/prevprot/gas/freon.html
452 //-- Isobutane quencher C4H10 (5% in the sensitive mixture)
453 Float_t aiso[2] = {12.011,1.007};
454 Float_t ziso[2] = { 6., 1.};
455 Float_t wiso[2] = { 4., 10.};
456 Float_t densiso = .......; // (g/cm3) density
457 Int_t nfre = -2; // < 0 i.e. proportion by number of atoms of each kind
458 //-- SF6 (5% in the sensitive mixture)
459 Float_t asf[3] = {32.066,18.998};
460 Float_t zsf[3] = { 16., 9.};
461 Float_t wsf[3] = { 1., 6.};
462 Float_t denssf = .....; // (g/cm3) density
463 Int_t nfre = -2; // < 0 i.e. proportion by number of atoms of each kind
466 Float_t ac[2] = {12.,16.};
467 Float_t zc[2] = { 6., 8.};
468 Float_t wc[2] = { 1., 2.};
469 Float_t dc = .001977;
471 // For mylar (C5H4O2)
472 Float_t amy[3] = { 12., 1., 16. };
473 Float_t zmy[3] = { 6., 1., 8. };
474 Float_t wmy[3] = { 5., 4., 2. };
477 // For polyethilene (CH2) - honeycomb -
478 Float_t ape[2] = { 12., 1. };
479 Float_t zpe[2] = { 6., 1. };
480 Float_t wpe[2] = { 1., 2. };
481 Float_t dpe = 0.935*0.479; //To have 1%X0 for 1cm as for honeycomb
484 Float_t ag10[4] = { 12.,1.,16.,28. };
485 Float_t zg10[4] = { 6.,1., 8.,14. };
486 Float_t wmatg10[4] = { .259,.288,.248,.205 };
487 Float_t densg10 = 1.7;
490 // plexiglass CH2=C(CH3)CO2CH3
491 Float_t aplex[3] = { 12.,1.,16.};
492 Float_t zplex[3] = { 6.,1., 8.};
493 Float_t wmatplex[3] = {5.,8.,2.};
494 Float_t densplex =1.16;
497 // ---- ALUMINA (AL203)
498 Float_t aal[2] = { 27.,16.};
499 Float_t zal[2] = { 13., 8.};
500 Float_t wmatal[2] = { 2.,3. };
501 Float_t densal = 2.3;
504 Float_t awa[2] = { 1., 16. };
505 Float_t zwa[2] = { 1., 8. };
506 Float_t wwa[2] = { 2., 1. };
511 Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 };
512 Float_t zsteel[4] = { 26.,24.,28.,14. };
513 Float_t wsteel[4] = { .715,.18,.1,.005 };
516 //AliMaterial(0, "Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
517 AliMaterial( 1, "Air$",14.61,7.3,0.001205,30423.24,67500.);
518 AliMaterial( 2, "Cu $", 63.54, 29.0, 8.96, 1.43, 14.8);
519 AliMaterial( 3, "C $", 12.01, 6.0, 2.265,18.8, 74.4);
520 AliMixture ( 4, "Polyethilene$", ape, zpe, dpe, npe, wpe);
521 AliMixture ( 5, "G10$", ag10, zg10, densg10, nlmatg10, wmatg10);
522 AliMixture ( 6, "PLE$", aplex, zplex, densplex, nplex, wmatplex);
523 AliMixture ( 7, "CO2$", ac, zc, dc, nc, wc);
524 AliMixture ( 8, "ALUMINA$", aal, zal, densal, nlmatal, wmatal);
525 AliMaterial( 9, "Al $", 26.98, 13., 2.7, 8.9, 37.2);
526 AliMaterial(10, "C-TRD$", 12.01, 6., 2.265*18.8/69.282*15./100, 18.8, 74.4); // for 15%
527 AliMixture (11, "Mylar$", amy, zmy, dmy, nmy, wmy);
528 AliMixture (12, "Freon$", afre, zfre, densfre, nfre, wfre);
529 AliMixture (13, "Glass$", aq, zq, dq, nq, wq);
530 AliMixture (14, "Water$", awa, zwa, dwa, nwa, wwa);
531 AliMixture (15, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel);
533 Float_t epsil, stmin, deemax, stemax;
536 // EPSIL = 0.1 ! Tracking precision,
537 // STEMAX = 0.1 ! Maximum displacement for multiple scattering
538 // DEEMAX = 0.1 ! Maximum fractional energy loss, DLS
542 epsil = .001; // Tracking precision,
543 stemax = -1.; // Maximum displacement for multiple scattering
544 deemax = -.3; // Maximum fractional energy loss, DLS
547 AliMedium( 1, "Air$" , 1, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
548 AliMedium( 2, "Cu $" , 2, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
549 AliMedium( 3, "C $" , 3, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
550 AliMedium( 4, "Pol$" , 4, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
551 AliMedium( 5, "G10$" , 5, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
552 AliMedium( 6, "PLE$" , 6, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
553 AliMedium( 7, "CO2$" , 7, 0, isxfld, sxmgmx, 10., -.01, -.1, .01, -.01);
554 AliMedium( 8,"ALUMINA$", 8, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
555 AliMedium( 9,"Al Frame$",9, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
556 AliMedium(10, "DME-S$", 6, 1, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
557 AliMedium(11, "C-TRD$", 10, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
558 AliMedium(12, "Myl$" , 11, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
559 AliMedium(13, "Fre$" , 12, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
560 AliMedium(14, "Fre-S$", 12, 1, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
561 AliMedium(15, "Glass$", 13, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
562 AliMedium(16, "Water$", 14, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
563 AliMedium(17, "STEEL$", 15, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
566 //_____________________________________________________________________________
567 Int_t AliTOF::DistancetoPrimitive(Int_t , Int_t ) const
570 // Returns distance from mouse pointer to detector, default version
575 //___________________________________________
576 void AliTOF::ResetHits ()
578 // Reset number of clusters and the cluster array for this detector
579 AliDetector::ResetHits ();
582 //____________________________________________
583 void AliTOF::ResetDigits ()
586 // Reset number of digits and the digits array for this detector
587 AliDetector::ResetDigits ();
590 //_____________________________________________________________________________
594 // Initialise TOF detector after it has been built
596 // Set id of TOF sensitive volume
597 if (IsVersion() !=0) fIdSens=gMC->VolId("FPAD");
601 //____________________________________________________________________________
602 void AliTOF::MakeBranch(Option_t* option)
605 // Initializes the Branches of the TOF inside the
606 // trees written for each event.
607 // AliDetector::MakeBranch initializes just the
608 // Branch inside TreeH. Here we add the branches in
609 // TreeD, TreeS and TreeR.
611 const char *oH = strstr(option,"H");
612 if (fLoader->TreeH() && oH)
616 if (fTZero) fHits = new TClonesArray("AliTOFhitT0", 1000);
617 else fHits = new TClonesArray("AliTOFhit", 1000);
621 AliDetector::MakeBranch(option);
623 Int_t buffersize = 4000;
624 Char_t branchname[10];
625 sprintf(branchname,"%s",GetName());
627 const char *oD = strstr(option,"D");
628 const char *oS = strstr(option,"S");
629 const char *oR = strstr(option,"R");
631 if (fLoader->TreeD() && oD){
632 if (fDigits == 0x0) fDigits = new TClonesArray("AliTOFdigit", 1000);
633 MakeBranchInTree(fLoader->TreeD(), branchname, &fDigits,buffersize, 0) ;
636 if (fLoader->TreeS() && oS){
637 if (fSDigits == 0x0) fSDigits = new TClonesArray("AliTOFSDigit", 1000);
638 MakeBranchInTree(fLoader->TreeS(), branchname, &fSDigits,buffersize, 0) ;
641 if (fReconParticles && fLoader->TreeR() && oR){
642 MakeBranchInTree(fLoader->TreeR(), branchname, &fReconParticles,buffersize, 0) ;
646 //____________________________________________________________________________
647 void AliTOF::Makehits(Bool_t hits)
649 // default argument used, see AliTOF.h
650 // Enable/Disable the writing of the TOF-hits branch
652 // by default : enabled for TOFv1, v2, v3, v4
653 // disabled for TOFv0
655 if (hits && (IsVersion()!=0))
656 fIdSens = gMC->VolId("FPAD");
658 cout << "Option for writing the TOF-hits branch on TreeH: disabled" << endl;
661 //____________________________________________________________________________
662 void AliTOF::FinishEvent()
667 //___________________________________________
668 void AliTOF::SDigits2Digits()
671 // Generate digits performing merging
674 int nparticles = gAlice->GetNtrack();
675 cout << "Particles :" <<nparticles<<endl;
676 if (nparticles > 0 ) {
678 AliTOF::Hits2Digits();
682 cout<<"AliTOF::SDigits2Digits"<<endl;
685 cout<<"AliTOF::SDigits2Digits Init"<<endl;
687 cout<<"AliTOF::SDigits2Digits Digitise() "<<endl;
691 //---------------------------------------------------------------------
692 void AliTOF::SetMerger(AliTOFMerger* merger)
694 // Set pointer to merger
698 //---------------------------------------------------------------------
699 AliTOFMerger* AliTOF::Merger()
701 // Return pointer to merger
706 //---------------------------------------------------------------------
708 void AliTOF::Hits2SDigits()
711 // Use the TOF SDigitizer to make TOF SDigits
715 cout<<"ALiTOF::Hits2SDigits> start...\n";
718 //char * fileSDigits = 0 ;
719 char * fileHeader = 0;
720 AliTOFSDigitizer * sd = new AliTOFSDigitizer(fileHeader) ;
728 //___________________________________________________________________________
729 Bool_t AliTOF::CheckOverlap(Int_t* vol, Float_t* digit,Int_t Track)
732 // Checks if 2 or more hits belong to the same pad.
733 // In this case the data assigned to the digit object
734 // are the ones of the first hit in order of Time.
735 // 2 hits from the same track on the same pad are collected.
736 // Called only by Hits2SDigits.
737 // This procedure has to be optimized in the next TOF release.
740 Bool_t overlap = kFALSE;
743 for (Int_t ndig=0; ndig<fSDigits->GetEntries(); ndig++){
744 AliTOFdigit* currentDigit = (AliTOFdigit*)(fSDigits->UncheckedAt(ndig));
745 currentDigit->GetLocation(vol2);
747 // check on digit volume
748 for (Int_t i=0;i<=4;i++){
750 if (vol[i]!=vol2[i]) idem=kFALSE;}
752 if (idem){ // same pad fired
753 Float_t tdc2 = digit[0];
754 Float_t tdc1 = currentDigit->GetTdc();
756 // we separate two digits on the same pad if
757 // they are separated in time by at least 25 ns
758 // remember that tdc time is given in ps
760 if (TMath::Abs(tdc1-tdc2)<25000){
761 // in case of overlap we take the earliest
763 currentDigit->SetTdc(tdc2);
764 currentDigit->SetAdc(digit[1]);
767 currentDigit->SetTdc(tdc1);
768 currentDigit->SetAdc(digit[1]);
770 currentDigit->AddTrack(Track); // add track number in the track array
776 } // close if (idem) -> two digits on the same TOF pad
778 } // end loop on existing sdigits
784 //____________________________________________________________________________
785 void AliTOF::Digits2Raw(Int_t evNumber)
788 // Starting from digits, writes the
789 // Raw Data objects, i.e. a
790 // TClonesArray of 18 AliTOFRawSector objects
795 // do nothing if no particles
796 Int_t nparticles = gAlice->GetEvent(evNumber);
797 if (nparticles <= 0) return;
799 tD = gAlice->TreeD();
801 TClonesArray* tofdigits = this->Digits();
802 Int_t ndigits = tofdigits->GetEntriesFast();
804 TClonesArray* rawsectors = new TClonesArray("AliTOFRawSector",fNTof+2);
806 for (Int_t isect=1;isect<=fNTof;isect++){
807 AliTOFRawSector* currentSector = (AliTOFRawSector*)rawsectors->UncheckedAt(isect);
808 TClonesArray* rocData = (TClonesArray*)currentSector->GetRocData();
810 for (Int_t digit=0; digit<ndigits; digit++){
811 AliTOFdigit* currentDigit = (AliTOFdigit*)tofdigits->UncheckedAt(digit);
812 Int_t sector = currentDigit->GetSector();
814 Int_t pad = currentDigit -> GetTotPad();
815 Int_t roc = (Int_t)(pad/fNPadXRoc)-1;
816 if (roc>=fNRoc) printf("Wrong n. of ROC ! Roc = %i",roc);
817 Int_t padRoc = (Int_t) pad%fNPadXRoc;
818 Int_t fec = (Int_t)(padRoc/fNFec)-1;
819 Int_t tdc = (Int_t)(padRoc%fNFec)-1;
820 Float_t time = currentDigit->GetTdc();
821 Float_t charge = currentDigit->GetAdc();
822 AliTOFRoc* currentROC = (AliTOFRoc*)rocData->UncheckedAt(roc);
824 currentROC->AddItem(fec, tdc, error, charge, time);
825 } // close if (sector==isect) i.e. end loop on digits for the current sector
826 } // end loop on TOF digits
828 UInt_t totSize=16,rocSize=0;
829 UInt_t rocHead[14],rocChek[14];
830 UInt_t globalCheckSum=0;
832 for (UInt_t iRoc = 1; iRoc<(UInt_t)fNRoc; iRoc++){
833 AliTOFRoc* currentRoc = (AliTOFRoc*)rocData->UncheckedAt(iRoc);
834 rocSize = currentRoc->GetItems()*2+1;
835 totSize += rocSize*4;
836 if (rocSize>=TMath::Power(2,16)) rocSize=0;
837 rocHead[iRoc] = iRoc<<28;
838 rocHead[iRoc] += rocSize;
839 rocChek[iRoc] = currentRoc->GetCheckSum();
840 Int_t headCheck = currentRoc->BitCount(rocHead[iRoc]);
841 globalCheckSum += headCheck;
842 globalCheckSum += rocChek[iRoc];
845 AliTOFRoc* dummyRoc = new AliTOFRoc();
847 if (totSize>=TMath::Power(2,24)) totSize=0;
848 UInt_t header = totSize;
849 UInt_t sectId = ((UInt_t)isect)<<24;
851 globalCheckSum += dummyRoc->BitCount(header);
852 currentSector->SetGlobalCS(globalCheckSum);
853 currentSector->SetHeader(header);
857 //____________________________________________________________________________
858 void AliTOF::Raw2Digits(Int_t evNumber)
861 // Converts Raw Data objects into digits objects.
862 // We schematize the raw data with a
863 // TClonesArray of 18 AliTOFRawSector objects
875 Int_t nparticles = gAlice->GetEvent(evNumber);
876 if (nparticles <= 0) return;
878 tD = gAlice->TreeD();
880 TClonesArray* rawsectors = new TClonesArray("AliTOFRawSector",fNTof+2);
882 for(Int_t nSec=1; nSec<=fNTof; nSec++){
883 AliTOFRawSector* currentSector = (AliTOFRawSector*)rawsectors->UncheckedAt(nSec);
884 TClonesArray* rocData = (TClonesArray*)currentSector->GetRocData();
885 for(Int_t nRoc=1; nRoc<=14; nRoc++){
886 AliTOFRoc* currentRoc = (AliTOFRoc*)rocData->UncheckedAt(nRoc);
887 Int_t currentItems = currentRoc->GetItems();
888 for(Int_t item=1; item<currentItems; item++){
889 Int_t nPad = currentRoc->GetTotPad(item);
891 Int_t nStrip = (Int_t)(nPad/fPadXStr)+1;
893 if (nStrip<=fNStripC+2*fNStripB+fNStripA) nPlate = 4;
894 if (nStrip<=fNStripC+fNStripB+fNStripA) nPlate = 3;
895 if (nStrip<=fNStripC+fNStripB) nPlate = 2;
896 if (nStrip<=fNStripC) nPlate=1;
900 case 2: nStrip -= (fNStripC);
902 case 3: nStrip -= (fNStripC+fNStripB);
904 case 4: nStrip -= (fNStripC+fNStripB+fNStripA);
906 case 5: nStrip -= (fNStripC+2*fNStripB+fNStripA);
910 Int_t pad = nPad%fPadXStr;
911 if (pad==0) pad=fPadXStr;
912 Int_t nPadX=0, nPadZ=0;
913 (pad>fNpadX)? nPadX -= fNpadX : nPadX = pad ;
915 (pad>fNpadX)? nPadZ = 2 : nPadZ = 1 ;
918 Float_t tdc = currentRoc->GetTime(item,error);
919 if (!error) digit[0]=tdc;
920 digit[1] = currentRoc->GetCharge(item);
921 AddDigit(tracks,vol,digit);
926 tD->Write(0,TObject::kOverwrite);
929 ////////////////////////////////////////////////////////////////////////
930 void AliTOF::RecreateSDigitsArray() {
932 // delete TClonesArray fSDigits and create it again
933 // needed for backward compatability with PPR test production
936 fSDigits = new TClonesArray("AliTOFSDigit", 1000);
938 ////////////////////////////////////////////////////////////////////////
939 void AliTOF::CreateSDigitsArray() {
941 // create TClonesArray fSDigits
942 // needed for backward compatability with PPR test production
944 fSDigits = new TClonesArray("AliTOFSDigit", 1000);