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 Revision 1.40 2002/10/14 14:57:42 hristov
19 Merging the VirtualMC branch to the main development branch (HEAD)
21 Revision 1.35.4.2 2002/07/24 10:08:43 alibrary
24 Revision 1.39 2002/06/24 14:09:12 vicinanz
25 review on materials and
27 Revision 1.38 2002/06/13 08:43:46 vicinanz
28 Merging added and test macro
30 Revision 1.37 2002/05/03 07:34:19 vicinanz
31 Updated SDigitizer; Added AliTOFanalyzeSDigits.C macro
33 Revision 1.36 2002/04/19 14:40:51 vicinanz
36 Revision 1.35 2002/03/21 13:52:53 vicinanz
37 Minor changes to AliTOF constructor
39 Revision 1.34 2002/02/20 13:41:38 hristov
40 Default arguments set only in the header file
42 Revision 1.33 2002/02/19 10:39:38 vicinanz
43 t0 classes added and material update (steel added)
45 Revision 1.31 2001/11/22 11:22:51 hristov
46 Updated version of TOF digitization, N^2 problem solved (J.Chudoba)
48 Revision 1.30 2001/10/21 18:30:39 hristov
49 Several pointers were set to zero in the default constructors to avoid memory management problems
51 Revision 1.29 2001/10/17 14:19:24 hristov
52 delete replaced by delete []
54 Revision 1.28 2001/10/05 12:02:01 vicinanz
55 Minor improvements on Merger and SDigitizer
57 Revision 1.27 2001/10/02 13:03:13 vicinanz
58 Minor improvements on the code
60 Revision 1.26 2001/09/27 10:39:20 vicinanz
61 SDigitizer and Merger added
63 Revision 1.25 2001/09/07 08:37:40 hristov
64 Pointers initialised to 0 in the default constructor
66 Revision 1.24 2001/09/05 16:31:00 hristov
67 The deletion of TOF folders temporarily commented out
69 Revision 1.23 2001/08/29 12:59:01 vicinanz
70 Minor changes to the Digitizer procedure
72 Revision 1.22 2001/08/28 08:45:58 vicinanz
73 TTask and TFolder structures implemented
75 Revision 1.21 2001/05/16 14:57:24 alibrary
76 New files for folders and Stack
78 Revision 1.20 2001/05/04 10:09:47 vicinanz
79 Major upgrades to the strip structure
81 Revision 1.19 2001/03/12 17:47:25 hristov
82 Changes needed on Sun with CC 5.0
84 Revision 1.18 2001/01/26 19:57:42 hristov
85 Major upgrade of AliRoot code
87 Revision 1.17 2000/10/19 09:58:14 vicinanz
88 Updated Hits2Digit procedure
90 Revision 1.16 2000/10/02 21:28:17 fca
91 Removal of useless dependecies via forward declarations
93 Revision 1.15 2000/05/18 14:33:01 vicinanz
94 Modified to be full HP compliant
96 Revision 1.14 2000/05/15 19:32:36 fca
99 Revision 1.13 2000/05/10 16:52:18 vicinanz
100 New TOF version with holes for PHOS/RICH
102 Revision 1.11.2.1 2000/05/10 09:37:15 vicinanz
103 New version with Holes for PHOS/RICH
105 Revision 1.11 1999/11/05 22:39:06 fca
108 Revision 1.10 1999/11/01 20:41:57 fca
109 Added protections against using the wrong version of FRAME
111 Revision 1.9 1999/10/15 15:35:19 fca
112 New version for frame1099 with and without holes
114 Revision 1.9 1999/09/29 09:24:33 fca
115 Introduction of the Copyright and cvs Log
119 ///////////////////////////////////////////////////////////////////////////////
122 // This class contains the basic functions for the Time Of Flight //
123 // detector. Functions specific to one particular geometry are //
124 // contained in the derived classes //
126 // VERSIONE WITH 5 SYMMETRIC MODULES ALONG Z AXIS
127 // ==============================================
129 // VERSION WITH HOLES FOR PHOS AND TRD IN SPACEFRAME WITH HOLES
131 // Volume sensibile : FPAD
137 <img src="picts/AliTOFClass.gif">
143 ///////////////////////////////////////////////////////////////////////////////
145 #include <Riostream.h>
146 #include <Rstrstream.h>
147 #include <Riostream.h>
151 #include "AliTOFhit.h"
152 #include "AliTOFhitT0.h"
153 #include "AliTOFdigit.h"
154 #include "AliTOFSDigit.h"
155 #include "AliTOFRawSector.h"
156 #include "AliTOFRoc.h"
157 #include "AliTOFRawDigit.h"
172 #include "AliConst.h"
177 //_____________________________________________________________________________
181 // Default constructor
190 fReconParticles = 0x0;
198 //_____________________________________________________________________________
199 AliTOF::AliTOF(const char *name, const char *title, Option_t *option)
200 : AliDetector(name,title)
203 // AliTOF standard constructor
205 // Here are fixed some important parameters
208 // Initialization of hits, sdigits and digits array
209 // added option for time zero analysis
210 if (strstr(option,"tzero")){
211 fHits = new TClonesArray("AliTOFhitT0", 1000);
212 cout << "tzero option requires AliTOFv4T0 as TOF version (check Your Config.C)" << endl;
214 fHits = new TClonesArray("AliTOFhit", 1000);
216 gAlice->AddHitList(fHits);
218 fSDigits = new TClonesArray("AliTOFSDigit", 1000);
219 fDigits = new TClonesArray("AliTOFdigit", 1000);
225 fReconParticles = 0x0;
229 // Digitization parameters
231 // (Transfer Functions to be inserted here)
237 // General Geometrical Parameters
238 fNTof = 18; // number of sectors
241 fZlenC = 177.5;//cm length of module C
242 fZlenB = 141.0;//cm length of module B
243 fZlenA = 106.0;//cm length of module A
244 fZtof = 371.5;//cm total semi-length of TOF detector
247 fStripLn = 122.0;//cm Strip Length
248 fSpace = 5.5;//cm Space Beetween the strip and the bottom of the plate
249 fDeadBndZ= 1.5;//cm Dead Boundaries of a Strip along Z direction (width)
250 fDeadBndX= 1.0;//cm Dead Boundaries of a Strip along X direction (length)
251 fXpad = 2.5;//cm X size of a pad
252 fZpad = 3.5;//cm Z size of a pad
253 fGapA = 4.; //cm Gap beetween tilted strip in A-type plate
254 fGapB = 6.; //cm Gap beetween tilted strip in B-type plate
255 fOverSpc = 15.3;//cm Space available for sensitive layers in radial direction
256 fNpadX = 48; // Number of pads in a strip along the X direction
257 fNpadZ = 2; // Number of pads in a strip along the Z direction
258 fPadXStr = fNpadX*fNpadZ; //Number of pads per strip
259 fNStripA = 15; // number of strips in A type module
260 fNStripB = 19; // number of strips in B type module
261 fNStripC = 20; // number of strips in C type module
263 // Physical performances
267 // DAQ characteristics
268 // cfr. TOF-TDR pag. 105 for Glossary
269 // TARODA : TOF-ALICE Read Out and Data Acquisition system
270 fPadXSector = 8928; // number of pad per sector -with no holes-
271 // ((15+2*19+2*20)*(48*2))
272 fNRoc = 14; // number of Roc (Read Out Controller) (TARODA)
273 fNFec = 32; // number of Fec (Front-End electronic Card)
275 fNTdc = 32; // number of Tdc (Time to Digital Converter)
276 fNPadXRoc = (Int_t)fPadXSector/fNRoc; // number of pads for each ROC
278 // Create TOF Folder Structure
283 //_____________________________________________________________________________
284 void AliTOF::CreateTOFFolders()
286 // create the ALICE TFolder
287 // create the ALICE TTasks
288 // create the ALICE main TFolder
289 // to be done by AliRun
291 TFolder * alice = new TFolder();
292 alice->SetNameTitle("FPAlice", "Alice Folder") ;
293 gROOT->GetListOfBrowsables()->Add(alice) ;
295 TFolder * aliceF = alice->AddFolder("folders", "Alice memory Folder") ;
296 // make it the owner of the objects that it contains
299 TFolder * geomF = aliceF->AddFolder("Geometry", "Geometry objects") ;
300 TFolder * aliceT = alice->AddFolder("tasks", "Alice tasks Folder") ;
301 // make it the owner of the objects that it contains
304 TTask * aliceDi = new TTask("(S)Digitizer", "Alice SDigitizer & Digitizer") ;
305 aliceT->Add(aliceDi);
307 TTask * aliceRe = new TTask("Reconstructioner", "Alice Reconstructioner") ;
308 aliceT->Add(aliceRe);
310 char * tempo = new char[80] ;
312 // creates the TOF Digitizer and adds it to alice main (S)Digitizer task
313 sprintf(tempo, "%sDigitizers container",GetName() ) ;
314 fDTask = new TTask(GetName(), tempo);
315 aliceDi->Add(fDTask) ;
317 // creates the TOF reconstructioner and adds it to alice main Reconstructioner task
318 sprintf(tempo, "%sReconstructioner container",GetName() ) ;
319 fReTask = new TTask(GetName(), tempo);
320 aliceRe->Add(fReTask) ;
324 // creates the TOF geometry folder
325 geomF->AddFolder("TOF", "Geometry for TOF") ;
328 //_____________________________________________________________________________
332 // it remove also the alice folder
333 // and task that TOF creates instead of AliRun
334 /* PH Temporarily commented because of problems
335 TFolder * alice = (TFolder*)gROOT->GetListOfBrowsables()->FindObject("FPAlice") ;
359 fReconParticles->Delete ();
360 delete fReconParticles;
366 //_____________________________________________________________________________
367 void AliTOF::AddHit(Int_t track, Int_t *vol, Float_t *hits)
371 // new with placement used
373 TClonesArray &lhits = *fHits;
374 new(lhits[fNhits++]) AliTOFhit(fIshunt, track, vol, hits);
377 //_____________________________________________________________________________
378 void AliTOF::AddT0Hit(Int_t track, Int_t *vol, Float_t *hits)
382 // new with placement used
384 TClonesArray &lhits = *fHits;
385 new(lhits[fNhits++]) AliTOFhitT0(fIshunt, track, vol, hits);
388 //_____________________________________________________________________________
389 void AliTOF::AddDigit(Int_t *tracks, Int_t *vol, Float_t *digits)
393 // new with placement used
395 TClonesArray &ldigits = *fDigits;
396 new (ldigits[fNdigits++]) AliTOFdigit(tracks, vol, digits);
399 //___________________________________________
400 void AliTOF::AddSDigit(Int_t tracknum, Int_t *vol, Float_t *digits)
407 TClonesArray &lSDigits = *fSDigits;
408 new(lSDigits[fNSDigits++]) AliTOFSDigit(tracknum, vol, digits);
411 //_____________________________________________________________________________
412 void AliTOF::SetTreeAddress ()
414 // Set branch address for the Hits and Digits Tree.
416 AliDetector::SetTreeAddress ();
419 TTree *treeD = gAlice->TreeD ();
426 branch = treeD->GetBranch (branchname);
428 branch->SetAddress (&fDigits);
433 // fSDigits->Clear ();
435 if (gAlice->TreeS () && fSDigits)
437 branch = gAlice->TreeS ()->GetBranch ("TOF");
439 branch->SetAddress (&fSDigits);
442 if (gAlice->TreeR() && fReconParticles)
444 branch = gAlice->TreeR()->GetBranch("TOF");
445 if (branch) branch->SetAddress(&fReconParticles) ;
449 //_____________________________________________________________________________
450 void AliTOF::CreateGeometry()
453 // Common geometry code
457 <img src="picts/AliTOFv23.gif">
461 const Double_t kPi=TMath::Pi();
462 const Double_t kDegrad=kPi/180.;
464 Float_t xTof, yTof, wall;
466 // frame inbetween TOF modules
469 // Sizes of TOF module with its support etc..
470 xTof = 2.*(fRmin*TMath::Tan(10*kDegrad)-wall/2-.5);
473 // TOF module internal definitions
474 TOFpc(xTof, yTof, fZlenC, fZlenB, fZlenA, fZtof);
477 //_____________________________________________________________________________
478 void AliTOF::DrawModule() const
481 // Draw a shaded view of the common part of the TOF geometry
484 cout << " Drawing of AliTOF"<< endl;
485 // Set everything unseen
486 gMC->Gsatt("*", "seen", -1);
488 // Set ALIC mother transparent
489 gMC->Gsatt("ALIC","SEEN",0);
491 // Set the volumes visible
492 gMC->Gsatt("FTOA","SEEN",1);
493 gMC->Gsatt("FTOB","SEEN",1);
494 gMC->Gsatt("FTOC","SEEN",1);
495 gMC->Gsatt("FLTA","SEEN",1);
496 gMC->Gsatt("FLTB","SEEN",1);
497 gMC->Gsatt("FLTC","SEEN",1);
498 gMC->Gsatt("FSTR","SEEN",1);
500 gMC->Gdopt("hide", "on");
501 gMC->Gdopt("shad", "on");
502 gMC->Gsatt("*", "fill", 7);
503 gMC->SetClipBox(".");
504 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
506 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
507 gMC->Gdhead(1111, "Time Of Flight");
508 gMC->Gdman(18, 4, "MAN");
509 gMC->Gdopt("hide","off");
512 //_____________________________________________________________________________
513 void AliTOF::CreateMaterials()
516 // Defines TOF materials for all versions
517 // Revision: F. Pierella 18-VI-2002
520 Int_t isxfld = gAlice->Field()->Integ();
521 Float_t sxmgmx = gAlice->Field()->Max();
523 //--- Quartz (SiO2) to simulate float glass
524 // density tuned to have correct float glass
526 Float_t aq[2] = { 28.0855,15.9994 };
527 Float_t zq[2] = { 14.,8. };
528 Float_t wq[2] = { 1.,2. };
529 Float_t dq = 2.55; // std value: 2.2
532 // --- Freon C2F4H2 (TOF-TDR pagg.)
533 // Geant Manual CONS110-1, pag. 43 (Geant, Detector Description and Simulation Tool)
534 Float_t afre[3] = {12.011,18.998,1.007};
535 Float_t zfre[3] = { 6., 9., 1.};
536 Float_t wfre[3] = { 2., 4., 2.};
537 Float_t densfre = 0.00375;
538 // http://www.fi.infn.it/sezione/prevprot/gas/freon.html
541 //-- Isobutane quencher C4H10 (5% in the sensitive mixture)
542 Float_t aiso[2] = {12.011,1.007};
543 Float_t ziso[2] = { 6., 1.};
544 Float_t wiso[2] = { 4., 10.};
545 Float_t densiso = .......; // (g/cm3) density
546 Int_t nfre = -2; // < 0 i.e. proportion by number of atoms of each kind
547 //-- SF6 (5% in the sensitive mixture)
548 Float_t asf[3] = {32.066,18.998};
549 Float_t zsf[3] = { 16., 9.};
550 Float_t wsf[3] = { 1., 6.};
551 Float_t denssf = .....; // (g/cm3) density
552 Int_t nfre = -2; // < 0 i.e. proportion by number of atoms of each kind
555 Float_t ac[2] = {12.,16.};
556 Float_t zc[2] = { 6., 8.};
557 Float_t wc[2] = { 1., 2.};
558 Float_t dc = .001977;
560 // For mylar (C5H4O2)
561 Float_t amy[3] = { 12., 1., 16. };
562 Float_t zmy[3] = { 6., 1., 8. };
563 Float_t wmy[3] = { 5., 4., 2. };
566 // For polyethilene (CH2) - honeycomb -
567 Float_t ape[2] = { 12., 1. };
568 Float_t zpe[2] = { 6., 1. };
569 Float_t wpe[2] = { 1., 2. };
570 Float_t dpe = 0.935*0.479; //To have 1%X0 for 1cm as for honeycomb
573 Float_t ag10[4] = { 12.,1.,16.,28. };
574 Float_t zg10[4] = { 6.,1., 8.,14. };
575 Float_t wmatg10[4] = { .259,.288,.248,.205 };
576 Float_t densg10 = 1.7;
579 // plexiglass CH2=C(CH3)CO2CH3
580 Float_t aplex[3] = { 12.,1.,16.};
581 Float_t zplex[3] = { 6.,1., 8.};
582 Float_t wmatplex[3] = {5.,8.,2.};
583 Float_t densplex =1.16;
586 // ---- ALUMINA (AL203)
587 Float_t aal[2] = { 27.,16.};
588 Float_t zal[2] = { 13., 8.};
589 Float_t wmatal[2] = { 2.,3. };
590 Float_t densal = 2.3;
593 Float_t awa[2] = { 1., 16. };
594 Float_t zwa[2] = { 1., 8. };
595 Float_t wwa[2] = { 2., 1. };
600 Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 };
601 Float_t zsteel[4] = { 26.,24.,28.,14. };
602 Float_t wsteel[4] = { .715,.18,.1,.005 };
605 //AliMaterial(0, "Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
606 AliMaterial( 1, "Air$",14.61,7.3,0.001205,30423.24,67500.);
607 AliMaterial( 2, "Cu $", 63.54, 29.0, 8.96, 1.43, 14.8);
608 AliMaterial( 3, "C $", 12.01, 6.0, 2.265,18.8, 74.4);
609 AliMixture ( 4, "Polyethilene$", ape, zpe, dpe, npe, wpe);
610 AliMixture ( 5, "G10$", ag10, zg10, densg10, nlmatg10, wmatg10);
611 AliMixture ( 6, "PLE$", aplex, zplex, densplex, nplex, wmatplex);
612 AliMixture ( 7, "CO2$", ac, zc, dc, nc, wc);
613 AliMixture ( 8, "ALUMINA$", aal, zal, densal, nlmatal, wmatal);
614 AliMaterial( 9, "Al $", 26.98, 13., 2.7, 8.9, 37.2);
615 AliMaterial(10, "C-TRD$", 12.01, 6., 2.265*18.8/69.282*15./100, 18.8, 74.4); // for 15%
616 AliMixture (11, "Mylar$", amy, zmy, dmy, nmy, wmy);
617 AliMixture (12, "Freon$", afre, zfre, densfre, nfre, wfre);
618 AliMixture (13, "Glass$", aq, zq, dq, nq, wq);
619 AliMixture (14, "Water$", awa, zwa, dwa, nwa, wwa);
620 AliMixture (15, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel);
622 Float_t epsil, stmin, deemax, stemax;
625 // EPSIL = 0.1 ! Tracking precision,
626 // STEMAX = 0.1 ! Maximum displacement for multiple scattering
627 // DEEMAX = 0.1 ! Maximum fractional energy loss, DLS
631 epsil = .001; // Tracking precision,
632 stemax = -1.; // Maximum displacement for multiple scattering
633 deemax = -.3; // Maximum fractional energy loss, DLS
636 AliMedium( 1, "Air$" , 1, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
637 AliMedium( 2, "Cu $" , 2, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
638 AliMedium( 3, "C $" , 3, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
639 AliMedium( 4, "Pol$" , 4, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
640 AliMedium( 5, "G10$" , 5, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
641 AliMedium( 6, "PLE$" , 6, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
642 AliMedium( 7, "CO2$" , 7, 0, isxfld, sxmgmx, 10., -.01, -.1, .01, -.01);
643 AliMedium( 8,"ALUMINA$", 8, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
644 AliMedium( 9,"Al Frame$",9, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
645 AliMedium(10, "DME-S$", 6, 1, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
646 AliMedium(11, "C-TRD$", 10, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
647 AliMedium(12, "Myl$" , 11, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
648 AliMedium(13, "Fre$" , 12, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
649 AliMedium(14, "Fre-S$", 12, 1, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
650 AliMedium(15, "Glass$", 13, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
651 AliMedium(16, "Water$", 14, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
652 AliMedium(17, "STEEL$", 15, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
655 //_____________________________________________________________________________
656 Int_t AliTOF::DistancetoPrimitive(Int_t , Int_t ) const
659 // Returns distance from mouse pointer to detector, default version
664 //___________________________________________
665 void AliTOF::ResetHits ()
667 // Reset number of clusters and the cluster array for this detector
668 AliDetector::ResetHits ();
671 //____________________________________________
672 void AliTOF::ResetDigits ()
675 // Reset number of digits and the digits array for this detector
676 AliDetector::ResetDigits ();
679 //_____________________________________________________________________________
683 // Initialise TOF detector after it has been built
685 // Set id of TOF sensitive volume
686 if (IsVersion() !=0) fIdSens=gMC->VolId("FPAD");
690 //____________________________________________________________________________
691 void AliTOF::MakeBranch(Option_t* option, const char *file)
694 // Initializes the Branches of the TOF inside the
695 // trees written for each event.
696 // AliDetector::MakeBranch initializes just the
697 // Branch inside TreeH. Here we add the branches in
698 // TreeD, TreeS and TreeR.
700 AliDetector::MakeBranch(option,file);
702 Int_t buffersize = 4000;
703 Char_t branchname[10];
704 sprintf(branchname,"%s",GetName());
706 const char *oD = strstr(option,"D");
707 const char *oS = strstr(option,"S");
708 const char *oR = strstr(option,"R");
712 // one branch for TOF digits
716 if (fDigits && gAlice->TreeD() && oD){
717 MakeBranchInTree(gAlice->TreeD(),
718 branchname, &fDigits,buffersize, file) ;
723 // one branch for TOF sdigits
727 if (fSDigits && gAlice->TreeS() && oS){
728 MakeBranchInTree(gAlice->TreeS(),
729 branchname, &fSDigits,buffersize, file) ;
734 // one branch for TOF reconstructed particles
738 if (fReconParticles && gAlice->TreeR() && oR){
739 MakeBranchInTree(gAlice->TreeR(),
740 branchname, &fReconParticles,buffersize, file) ;
745 //____________________________________________________________________________
746 void AliTOF::Makehits(Bool_t hits)
748 // default argument used, see AliTOF.h
749 // Enable/Disable the writing of the TOF-hits branch
751 // by default : enabled for TOFv1, v2, v3, v4
752 // disabled for TOFv0
754 if (hits && (IsVersion()!=0))
755 fIdSens = gMC->VolId("FPAD");
757 cout << "Option for writing the TOF-hits branch on TreeH: disabled" << endl;
760 //____________________________________________________________________________
761 void AliTOF::FinishEvent()
766 //___________________________________________
767 void AliTOF::SDigits2Digits()
770 // Generate digits performing merging
773 int nparticles = gAlice->GetNtrack();
774 cout << "Particles :" <<nparticles<<endl;
775 if (nparticles > 0 ) {
777 AliTOF::Hits2Digits();
781 cout<<"AliTOF::SDigits2Digits"<<endl;
784 cout<<"AliTOF::SDigits2Digits Init"<<endl;
786 cout<<"AliTOF::SDigits2Digits Digitise() "<<endl;
790 //---------------------------------------------------------------------
791 void AliTOF::SetMerger(AliTOFMerger* merger)
793 // Set pointer to merger
797 //---------------------------------------------------------------------
798 AliTOFMerger* AliTOF::Merger()
800 // Return pointer to merger
805 //---------------------------------------------------------------------
807 void AliTOF::Hits2SDigits()
810 // Use the TOF SDigitizer to make TOF SDigits
814 cout<<"ALiTOF::Hits2SDigits> start...\n";
817 //char * fileSDigits = 0 ;
818 char * fileHeader = 0;
819 AliTOFSDigitizer * sd = new AliTOFSDigitizer(fileHeader) ;
827 //___________________________________________________________________________
828 Bool_t AliTOF::CheckOverlap(Int_t* vol, Float_t* digit,Int_t Track)
831 // Checks if 2 or more hits belong to the same pad.
832 // In this case the data assigned to the digit object
833 // are the ones of the first hit in order of Time.
834 // 2 hits from the same track on the same pad are collected.
835 // Called only by Hits2SDigits.
836 // This procedure has to be optimized in the next TOF release.
839 Bool_t overlap = kFALSE;
842 for (Int_t ndig=0; ndig<fSDigits->GetEntries(); ndig++){
843 AliTOFdigit* currentDigit = (AliTOFdigit*)(fSDigits->UncheckedAt(ndig));
844 currentDigit->GetLocation(vol2);
846 // check on digit volume
847 for (Int_t i=0;i<=4;i++){
849 if (vol[i]!=vol2[i]) idem=kFALSE;}
851 if (idem){ // same pad fired
852 Float_t tdc2 = digit[0];
853 Float_t tdc1 = currentDigit->GetTdc();
855 // we separate two digits on the same pad if
856 // they are separated in time by at least 25 ns
857 // remember that tdc time is given in ps
859 if (TMath::Abs(tdc1-tdc2)<25000){
860 // in case of overlap we take the earliest
862 currentDigit->SetTdc(tdc2);
863 currentDigit->SetAdc(digit[1]);
866 currentDigit->SetTdc(tdc1);
867 currentDigit->SetAdc(digit[1]);
869 currentDigit->AddTrack(Track); // add track number in the track array
875 } // close if (idem) -> two digits on the same TOF pad
877 } // end loop on existing sdigits
883 //____________________________________________________________________________
884 void AliTOF::Digits2Raw(Int_t evNumber)
887 // Starting from digits, writes the
888 // Raw Data objects, i.e. a
889 // TClonesArray of 18 AliTOFRawSector objects
894 // do nothing if no particles
895 Int_t nparticles = gAlice->GetEvent(evNumber);
896 if (nparticles <= 0) return;
898 tD = gAlice->TreeD();
900 TClonesArray* tofdigits = this->Digits();
901 Int_t ndigits = tofdigits->GetEntriesFast();
903 TClonesArray* rawsectors = new TClonesArray("AliTOFRawSector",fNTof+2);
905 for (Int_t isect=1;isect<=fNTof;isect++){
906 AliTOFRawSector* currentSector = (AliTOFRawSector*)rawsectors->UncheckedAt(isect);
907 TClonesArray* rocData = (TClonesArray*)currentSector->GetRocData();
909 for (Int_t digit=0; digit<ndigits; digit++){
910 AliTOFdigit* currentDigit = (AliTOFdigit*)tofdigits->UncheckedAt(digit);
911 Int_t sector = currentDigit->GetSector();
913 Int_t pad = currentDigit -> GetTotPad();
914 Int_t roc = (Int_t)(pad/fNPadXRoc)-1;
915 if (roc>=fNRoc) printf("Wrong n. of ROC ! Roc = %i",roc);
916 Int_t padRoc = (Int_t) pad%fNPadXRoc;
917 Int_t fec = (Int_t)(padRoc/fNFec)-1;
918 Int_t tdc = (Int_t)(padRoc%fNFec)-1;
919 Float_t time = currentDigit->GetTdc();
920 Float_t charge = currentDigit->GetAdc();
921 AliTOFRoc* currentROC = (AliTOFRoc*)rocData->UncheckedAt(roc);
923 currentROC->AddItem(fec, tdc, error, charge, time);
924 } // close if (sector==isect) i.e. end loop on digits for the current sector
925 } // end loop on TOF digits
927 UInt_t totSize=16,rocSize=0;
928 UInt_t rocHead[14],rocChek[14];
929 UInt_t globalCheckSum=0;
931 for (UInt_t iRoc = 1; iRoc<(UInt_t)fNRoc; iRoc++){
932 AliTOFRoc* currentRoc = (AliTOFRoc*)rocData->UncheckedAt(iRoc);
933 rocSize = currentRoc->GetItems()*2+1;
934 totSize += rocSize*4;
935 if (rocSize>=TMath::Power(2,16)) rocSize=0;
936 rocHead[iRoc] = iRoc<<28;
937 rocHead[iRoc] += rocSize;
938 rocChek[iRoc] = currentRoc->GetCheckSum();
939 Int_t headCheck = currentRoc->BitCount(rocHead[iRoc]);
940 globalCheckSum += headCheck;
941 globalCheckSum += rocChek[iRoc];
944 AliTOFRoc* dummyRoc = new AliTOFRoc();
946 if (totSize>=TMath::Power(2,24)) totSize=0;
947 UInt_t header = totSize;
948 UInt_t sectId = ((UInt_t)isect)<<24;
950 globalCheckSum += dummyRoc->BitCount(header);
951 currentSector->SetGlobalCS(globalCheckSum);
952 currentSector->SetHeader(header);
956 //____________________________________________________________________________
957 void AliTOF::Raw2Digits(Int_t evNumber)
960 // Converts Raw Data objects into digits objects.
961 // We schematize the raw data with a
962 // TClonesArray of 18 AliTOFRawSector objects
974 Int_t nparticles = gAlice->GetEvent(evNumber);
975 if (nparticles <= 0) return;
977 tD = gAlice->TreeD();
979 TClonesArray* rawsectors = new TClonesArray("AliTOFRawSector",fNTof+2);
981 for(Int_t nSec=1; nSec<=fNTof; nSec++){
982 AliTOFRawSector* currentSector = (AliTOFRawSector*)rawsectors->UncheckedAt(nSec);
983 TClonesArray* rocData = (TClonesArray*)currentSector->GetRocData();
984 for(Int_t nRoc=1; nRoc<=14; nRoc++){
985 AliTOFRoc* currentRoc = (AliTOFRoc*)rocData->UncheckedAt(nRoc);
986 Int_t currentItems = currentRoc->GetItems();
987 for(Int_t item=1; item<currentItems; item++){
988 Int_t nPad = currentRoc->GetTotPad(item);
990 Int_t nStrip = (Int_t)(nPad/fPadXStr)+1;
992 if (nStrip<=fNStripC+2*fNStripB+fNStripA) nPlate = 4;
993 if (nStrip<=fNStripC+fNStripB+fNStripA) nPlate = 3;
994 if (nStrip<=fNStripC+fNStripB) nPlate = 2;
995 if (nStrip<=fNStripC) nPlate=1;
999 case 2: nStrip -= (fNStripC);
1001 case 3: nStrip -= (fNStripC+fNStripB);
1003 case 4: nStrip -= (fNStripC+fNStripB+fNStripA);
1005 case 5: nStrip -= (fNStripC+2*fNStripB+fNStripA);
1009 Int_t pad = nPad%fPadXStr;
1010 if (pad==0) pad=fPadXStr;
1011 Int_t nPadX=0, nPadZ=0;
1012 (pad>fNpadX)? nPadX -= fNpadX : nPadX = pad ;
1014 (pad>fNpadX)? nPadZ = 2 : nPadZ = 1 ;
1017 Float_t tdc = currentRoc->GetTime(item,error);
1018 if (!error) digit[0]=tdc;
1019 digit[1] = currentRoc->GetCharge(item);
1020 AddDigit(tracks,vol,digit);
1025 tD->Write(0,TObject::kOverwrite);
1028 ////////////////////////////////////////////////////////////////////////
1029 void AliTOF::RecreateSDigitsArray() {
1031 // delete TClonesArray fSDigits and create it again
1032 // needed for backward compatability with PPR test production
1035 fSDigits = new TClonesArray("AliTOFSDigit", 1000);
1037 ////////////////////////////////////////////////////////////////////////
1038 void AliTOF::CreateSDigitsArray() {
1040 // create TClonesArray fSDigits
1041 // needed for backward compatability with PPR test production
1043 fSDigits = new TClonesArray("AliTOFSDigit", 1000);