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 1.37 2002/05/03 07:34:19 vicinanz
19 Updated SDigitizer; Added AliTOFanalyzeSDigits.C macro
21 Revision 1.36 2002/04/19 14:40:51 vicinanz
24 Revision 1.35 2002/03/21 13:52:53 vicinanz
25 Minor changes to AliTOF constructor
27 Revision 1.34 2002/02/20 13:41:38 hristov
28 Default arguments set only in the header file
30 Revision 1.33 2002/02/19 10:39:38 vicinanz
31 t0 classes added and material update (steel added)
33 Revision 1.31 2001/11/22 11:22:51 hristov
34 Updated version of TOF digitization, N^2 problem solved (J.Chudoba)
36 Revision 1.30 2001/10/21 18:30:39 hristov
37 Several pointers were set to zero in the default constructors to avoid memory management problems
39 Revision 1.29 2001/10/17 14:19:24 hristov
40 delete replaced by delete []
42 Revision 1.28 2001/10/05 12:02:01 vicinanz
43 Minor improvements on Merger and SDigitizer
45 Revision 1.27 2001/10/02 13:03:13 vicinanz
46 Minor improvements on the code
48 Revision 1.26 2001/09/27 10:39:20 vicinanz
49 SDigitizer and Merger added
51 Revision 1.25 2001/09/07 08:37:40 hristov
52 Pointers initialised to 0 in the default constructor
54 Revision 1.24 2001/09/05 16:31:00 hristov
55 The deletion of TOF folders temporarily commented out
57 Revision 1.23 2001/08/29 12:59:01 vicinanz
58 Minor changes to the Digitizer procedure
60 Revision 1.22 2001/08/28 08:45:58 vicinanz
61 TTask and TFolder structures implemented
63 Revision 1.21 2001/05/16 14:57:24 alibrary
64 New files for folders and Stack
66 Revision 1.20 2001/05/04 10:09:47 vicinanz
67 Major upgrades to the strip structure
69 Revision 1.19 2001/03/12 17:47:25 hristov
70 Changes needed on Sun with CC 5.0
72 Revision 1.18 2001/01/26 19:57:42 hristov
73 Major upgrade of AliRoot code
75 Revision 1.17 2000/10/19 09:58:14 vicinanz
76 Updated Hits2Digit procedure
78 Revision 1.16 2000/10/02 21:28:17 fca
79 Removal of useless dependecies via forward declarations
81 Revision 1.15 2000/05/18 14:33:01 vicinanz
82 Modified to be full HP compliant
84 Revision 1.14 2000/05/15 19:32:36 fca
87 Revision 1.13 2000/05/10 16:52:18 vicinanz
88 New TOF version with holes for PHOS/RICH
90 Revision 1.11.2.1 2000/05/10 09:37:15 vicinanz
91 New version with Holes for PHOS/RICH
93 Revision 1.11 1999/11/05 22:39:06 fca
96 Revision 1.10 1999/11/01 20:41:57 fca
97 Added protections against using the wrong version of FRAME
99 Revision 1.9 1999/10/15 15:35:19 fca
100 New version for frame1099 with and without holes
102 Revision 1.9 1999/09/29 09:24:33 fca
103 Introduction of the Copyright and cvs Log
107 ///////////////////////////////////////////////////////////////////////////////
110 // This class contains the basic functions for the Time Of Flight //
111 // detector. Functions specific to one particular geometry are //
112 // contained in the derived classes //
114 // VERSIONE WITH 5 SYMMETRIC MODULES ALONG Z AXIS
115 // ==============================================
117 // VERSION WITH HOLES FOR PHOS AND TRD IN SPACEFRAME WITH HOLES
119 // Volume sensibile : FPAD
125 <img src="picts/AliTOFClass.gif">
131 ///////////////////////////////////////////////////////////////////////////////
133 #include <iostream.h>
134 #include <strstream.h>
139 #include "AliTOFhit.h"
140 #include "AliTOFhitT0.h"
141 #include "AliTOFdigit.h"
142 #include "AliTOFSDigit.h"
143 #include "AliTOFRawSector.h"
144 #include "AliTOFRoc.h"
145 #include "AliTOFRawDigit.h"
160 #include "AliConst.h"
165 //_____________________________________________________________________________
169 // Default constructor
178 fReconParticles = 0x0;
186 //_____________________________________________________________________________
187 AliTOF::AliTOF(const char *name, const char *title, Option_t *option)
188 : AliDetector(name,title)
191 // AliTOF standard constructor
193 // Here are fixed some important parameters
196 // Initialization of hits, sdigits and digits array
197 // added option for time zero analysis
198 if (strstr(option,"tzero")){
199 fHits = new TClonesArray("AliTOFhitT0", 1000);
200 cout << "tzero option requires AliTOFv4T0 as TOF version (check Your Config.C)" << endl;
202 fHits = new TClonesArray("AliTOFhit", 1000);
204 gAlice->AddHitList(fHits);
206 fSDigits = new TClonesArray("AliTOFSDigit", 1000);
207 fDigits = new TClonesArray("AliTOFdigit", 1000);
213 fReconParticles = 0x0;
217 // Digitization parameters
219 // (Transfer Functions to be inserted here)
225 // General Geometrical Parameters
226 fNTof = 18; // number of sectors
229 fZlenC = 177.5;//cm length of module C
230 fZlenB = 141.0;//cm length of module B
231 fZlenA = 106.0;//cm length of module A
232 fZtof = 371.5;//cm total semi-length of TOF detector
235 fStripLn = 122.0;//cm Strip Length
236 fSpace = 5.5;//cm Space Beetween the strip and the bottom of the plate
237 fDeadBndZ= 1.5;//cm Dead Boundaries of a Strip along Z direction (width)
238 fDeadBndX= 1.0;//cm Dead Boundaries of a Strip along X direction (length)
239 fXpad = 2.5;//cm X size of a pad
240 fZpad = 3.5;//cm Z size of a pad
241 fGapA = 4.; //cm Gap beetween tilted strip in A-type plate
242 fGapB = 6.; //cm Gap beetween tilted strip in B-type plate
243 fOverSpc = 15.3;//cm Space available for sensitive layers in radial direction
244 fNpadX = 48; // Number of pads in a strip along the X direction
245 fNpadZ = 2; // Number of pads in a strip along the Z direction
246 fPadXStr = fNpadX*fNpadZ; //Number of pads per strip
247 fNStripA = 15; // number of strips in A type module
248 fNStripB = 19; // number of strips in B type module
249 fNStripC = 20; // number of strips in C type module
251 // Physical performances
255 // DAQ characteristics
256 // cfr. TOF-TDR pag. 105 for Glossary
257 // TARODA : TOF-ALICE Read Out and Data Acquisition system
258 fPadXSector = 8928; // number of pad per sector -with no holes-
259 // ((15+2*19+2*20)*(48*2))
260 fNRoc = 14; // number of Roc (Read Out Controller) (TARODA)
261 fNFec = 32; // number of Fec (Front-End electronic Card)
263 fNTdc = 32; // number of Tdc (Time to Digital Converter)
264 fNPadXRoc = (Int_t)fPadXSector/fNRoc; // number of pads for each ROC
266 // Create TOF Folder Structure
271 //_____________________________________________________________________________
272 void AliTOF::CreateTOFFolders()
274 // create the ALICE TFolder
275 // create the ALICE TTasks
276 // create the ALICE main TFolder
277 // to be done by AliRun
279 TFolder * alice = new TFolder();
280 alice->SetNameTitle("FPAlice", "Alice Folder") ;
281 gROOT->GetListOfBrowsables()->Add(alice) ;
283 TFolder * aliceF = alice->AddFolder("folders", "Alice memory Folder") ;
284 // make it the owner of the objects that it contains
287 TFolder * geomF = aliceF->AddFolder("Geometry", "Geometry objects") ;
288 TFolder * aliceT = alice->AddFolder("tasks", "Alice tasks Folder") ;
289 // make it the owner of the objects that it contains
292 TTask * aliceDi = new TTask("(S)Digitizer", "Alice SDigitizer & Digitizer") ;
293 aliceT->Add(aliceDi);
295 TTask * aliceRe = new TTask("Reconstructioner", "Alice Reconstructioner") ;
296 aliceT->Add(aliceRe);
298 char * tempo = new char[80] ;
300 // creates the TOF Digitizer and adds it to alice main (S)Digitizer task
301 sprintf(tempo, "%sDigitizers container",GetName() ) ;
302 fDTask = new TTask(GetName(), tempo);
303 aliceDi->Add(fDTask) ;
305 // creates the TOF reconstructioner and adds it to alice main Reconstructioner task
306 sprintf(tempo, "%sReconstructioner container",GetName() ) ;
307 fReTask = new TTask(GetName(), tempo);
308 aliceRe->Add(fReTask) ;
312 // creates the TOF geometry folder
313 geomF->AddFolder("TOF", "Geometry for TOF") ;
316 //_____________________________________________________________________________
320 // it remove also the alice folder
321 // and task that TOF creates instead of AliRun
322 /* PH Temporarily commented because of problems
323 TFolder * alice = (TFolder*)gROOT->GetListOfBrowsables()->FindObject("FPAlice") ;
347 fReconParticles->Delete ();
348 delete fReconParticles;
354 //_____________________________________________________________________________
355 void AliTOF::AddHit(Int_t track, Int_t *vol, Float_t *hits)
359 // new with placement used
361 TClonesArray &lhits = *fHits;
362 new(lhits[fNhits++]) AliTOFhit(fIshunt, track, vol, hits);
365 //_____________________________________________________________________________
366 void AliTOF::AddT0Hit(Int_t track, Int_t *vol, Float_t *hits)
370 // new with placement used
372 TClonesArray &lhits = *fHits;
373 new(lhits[fNhits++]) AliTOFhitT0(fIshunt, track, vol, hits);
376 //_____________________________________________________________________________
377 void AliTOF::AddDigit(Int_t *tracks, Int_t *vol, Float_t *digits)
381 // new with placement used
383 TClonesArray &ldigits = *fDigits;
384 new (ldigits[fNdigits++]) AliTOFdigit(tracks, vol, digits);
387 //___________________________________________
388 void AliTOF::AddSDigit(Int_t tracknum, Int_t *vol, Float_t *digits)
395 TClonesArray &lSDigits = *fSDigits;
396 new(lSDigits[fNSDigits++]) AliTOFSDigit(tracknum, vol, digits);
399 //_____________________________________________________________________________
400 void AliTOF::SetTreeAddress ()
402 // Set branch address for the Hits and Digits Tree.
404 AliDetector::SetTreeAddress ();
407 TTree *treeD = gAlice->TreeD ();
414 branch = treeD->GetBranch (branchname);
416 branch->SetAddress (&fDigits);
421 // fSDigits->Clear ();
423 if (gAlice->TreeS () && fSDigits)
425 branch = gAlice->TreeS ()->GetBranch ("TOF");
427 branch->SetAddress (&fSDigits);
430 if (gAlice->TreeR() && fReconParticles)
432 branch = gAlice->TreeR()->GetBranch("TOF");
433 if (branch) branch->SetAddress(&fReconParticles) ;
437 //_____________________________________________________________________________
438 void AliTOF::CreateGeometry()
441 // Common geometry code
445 <img src="picts/AliTOFv23.gif">
449 const Double_t kPi=TMath::Pi();
450 const Double_t kDegrad=kPi/180.;
452 Float_t xTof, yTof, wall;
454 // frame inbetween TOF modules
457 // Sizes of TOF module with its support etc..
458 xTof = 2.*(fRmin*TMath::Tan(10*kDegrad)-wall/2-.5);
461 // TOF module internal definitions
462 TOFpc(xTof, yTof, fZlenC, fZlenB, fZlenA, fZtof);
465 //_____________________________________________________________________________
466 void AliTOF::DrawModule() const
469 // Draw a shaded view of the common part of the TOF geometry
472 cout << " Drawing of AliTOF"<< endl;
473 // Set everything unseen
474 gMC->Gsatt("*", "seen", -1);
476 // Set ALIC mother transparent
477 gMC->Gsatt("ALIC","SEEN",0);
479 // Set the volumes visible
480 gMC->Gsatt("FTOA","SEEN",1);
481 gMC->Gsatt("FTOB","SEEN",1);
482 gMC->Gsatt("FTOC","SEEN",1);
483 gMC->Gsatt("FLTA","SEEN",1);
484 gMC->Gsatt("FLTB","SEEN",1);
485 gMC->Gsatt("FLTC","SEEN",1);
486 gMC->Gsatt("FSTR","SEEN",1);
488 gMC->Gdopt("hide", "on");
489 gMC->Gdopt("shad", "on");
490 gMC->Gsatt("*", "fill", 7);
491 gMC->SetClipBox(".");
492 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
494 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
495 gMC->Gdhead(1111, "Time Of Flight");
496 gMC->Gdman(18, 4, "MAN");
497 gMC->Gdopt("hide","off");
500 //_____________________________________________________________________________
501 void AliTOF::CreateMaterials()
504 // Defines TOF materials for all versions
505 // Authors : Maxim Martemianov, Boris Zagreev (ITEP)
507 // Revision: F. Pierella 5-3-2001
508 // Bologna University
510 Int_t isxfld = gAlice->Field()->Integ();
511 Float_t sxmgmx = gAlice->Field()->Max();
514 Float_t aq[2] = { 28.0855,15.9994 };
515 Float_t zq[2] = { 14.,8. };
516 Float_t wq[2] = { 1.,2. };
519 // --- Freon C2F4H2 (TOF-TDR pagg.)
520 // Geant Manual CONS110-1, pag. 43 (Geant, Detector Description and Simulation Tool)
521 Float_t afre[3] = {12.011,18.998,1.007};
522 Float_t zfre[3] = { 6., 9., 1.};
523 Float_t wfre[3] = { 2., 4., 2.};
524 Float_t densfre = 0.00375;
525 // http://www.fi.infn.it/sezione/prevprot/gas/freon.html
528 //-- Isobutane quencher C4H10 (5% in the sensitive mixture)
529 Float_t aiso[2] = {12.011,1.007};
530 Float_t ziso[2] = { 6., 1.};
531 Float_t wiso[2] = { 4., 10.};
532 Float_t densiso = .......; // (g/cm3) density
533 Int_t nfre = -2; // < 0 i.e. proportion by number of atoms of each kind
534 //-- SF6 (5% in the sensitive mixture)
535 Float_t asf[3] = {32.066,18.998};
536 Float_t zsf[3] = { 16., 9.};
537 Float_t wsf[3] = { 1., 6.};
538 Float_t denssf = .....; // (g/cm3) density
539 Int_t nfre = -2; // < 0 i.e. proportion by number of atoms of each kind
542 Float_t ac[2] = {12.,16.};
543 Float_t zc[2] = { 6., 8.};
544 Float_t wc[2] = { 1., 2.};
545 Float_t dc = .001977;
547 // For mylar (C5H4O2)
548 Float_t amy[3] = { 12., 1., 16. };
549 Float_t zmy[3] = { 6., 1., 8. };
550 Float_t wmy[3] = { 5., 4., 2. };
553 // For polyethilene (CH2) - honeycomb -
554 Float_t ape[2] = { 12., 1. };
555 Float_t zpe[2] = { 6., 1. };
556 Float_t wpe[2] = { 1., 2. };
557 Float_t dpe = 0.935*0.479; //To have 1%X0 for 1cm as for honeycomb
560 Float_t ag10[4] = { 12.,1.,16.,28. };
561 Float_t zg10[4] = { 6.,1., 8.,14. };
562 Float_t wmatg10[4] = { .259,.288,.248,.205 };
563 Float_t densg10 = 1.7;
566 Float_t adme[5] = { 12.,1.,16.,19.,79. };
567 Float_t zdme[5] = { 6.,1., 8., 9.,35. };
568 Float_t wmatdme[5] = { .4056,.0961,.2562,.1014,.1407 };
569 Float_t densdme = .00205;
571 // ---- ALUMINA (AL203)
572 Float_t aal[2] = { 27.,16.};
573 Float_t zal[2] = { 13., 8.};
574 Float_t wmatal[2] = { 2.,3. };
575 Float_t densal = 2.3;
578 Float_t awa[2] = { 1., 16. };
579 Float_t zwa[2] = { 1., 8. };
580 Float_t wwa[2] = { 2., 1. };
585 Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 };
586 Float_t zsteel[4] = { 26.,24.,28.,14. };
587 Float_t wsteel[4] = { .715,.18,.1,.005 };
590 //AliMaterial(0, "Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
591 AliMaterial( 1, "Air$",14.61,7.3,0.001205,30423.24,67500.);
592 AliMaterial( 2, "Cu $", 63.54, 29.0, 8.96, 1.43, 14.8);
593 AliMaterial( 3, "C $", 12.01, 6.0, 2.265,18.8, 74.4);
594 AliMixture ( 4, "Polyethilene$", ape, zpe, dpe, npe, wpe);
595 AliMixture ( 5, "G10$", ag10, zg10, densg10, nlmatg10, wmatg10);
596 AliMixture ( 6, "DME ", adme, zdme, densdme, nlmatdme, wmatdme);
597 AliMixture ( 7, "CO2$", ac, zc, dc, nc, wc);
598 AliMixture ( 8, "ALUMINA$", aal, zal, densal, nlmatal, wmatal);
599 AliMaterial( 9, "Al $", 26.98, 13., 2.7, 8.9, 37.2);
600 AliMaterial(10, "C-TRD$", 12.01, 6., 2.265*18.8/69.282*15./100, 18.8, 74.4); // for 15%
601 AliMixture (11, "Mylar$", amy, zmy, dmy, nmy, wmy);
602 AliMixture (12, "Freon$", afre, zfre, densfre, nfre, wfre);
603 AliMixture (13, "Quartz$", aq, zq, dq, nq, wq);
604 AliMixture (14, "Water$", awa, zwa, dwa, nwa, wwa);
605 AliMixture (15, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel);
607 Float_t epsil, stmin, deemax, stemax;
610 // EPSIL = 0.1 ! Tracking precision,
611 // STEMAX = 0.1 ! Maximum displacement for multiple scattering
612 // DEEMAX = 0.1 ! Maximum fractional energy loss, DLS
616 epsil = .001; // Tracking precision,
617 stemax = -1.; // Maximum displacement for multiple scattering
618 deemax = -.3; // Maximum fractional energy loss, DLS
621 AliMedium( 1, "Air$" , 1, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
622 AliMedium( 2, "Cu $" , 2, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
623 AliMedium( 3, "C $" , 3, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
624 AliMedium( 4, "Pol$" , 4, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
625 AliMedium( 5, "G10$" , 5, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
626 AliMedium( 6, "DME$" , 6, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
627 AliMedium( 7, "CO2$" , 7, 0, isxfld, sxmgmx, 10., -.01, -.1, .01, -.01);
628 AliMedium( 8,"ALUMINA$", 8, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
629 AliMedium( 9,"Al Frame$",9, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
630 AliMedium(10, "DME-S$", 6, 1, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
631 AliMedium(11, "C-TRD$", 10, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
632 AliMedium(12, "Myl$" , 11, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
633 AliMedium(13, "Fre$" , 12, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
634 AliMedium(14, "Fre-S$", 12, 1, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
635 AliMedium(15, "Glass$", 13, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
636 AliMedium(16, "Water$", 14, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
637 AliMedium(17, "STEEL$", 15, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
640 //_____________________________________________________________________________
641 Int_t AliTOF::DistancetoPrimitive(Int_t , Int_t ) const
644 // Returns distance from mouse pointer to detector, default version
649 //___________________________________________
650 void AliTOF::ResetHits ()
652 // Reset number of clusters and the cluster array for this detector
653 AliDetector::ResetHits ();
656 //____________________________________________
657 void AliTOF::ResetDigits ()
660 // Reset number of digits and the digits array for this detector
661 AliDetector::ResetDigits ();
664 //_____________________________________________________________________________
668 // Initialise TOF detector after it has been built
670 // Set id of TOF sensitive volume
671 if (IsVersion() !=0) fIdSens=gMC->VolId("FPAD");
675 //____________________________________________________________________________
676 void AliTOF::MakeBranch(Option_t* option, const char *file)
679 // Initializes the Branches of the TOF inside the
680 // trees written for each event.
681 // AliDetector::MakeBranch initializes just the
682 // Branch inside TreeH. Here we add the branches in
683 // TreeD, TreeS and TreeR.
685 AliDetector::MakeBranch(option,file);
687 Int_t buffersize = 4000;
688 Char_t branchname[10];
689 sprintf(branchname,"%s",GetName());
691 const char *oD = strstr(option,"D");
692 const char *oS = strstr(option,"S");
693 const char *oR = strstr(option,"R");
697 // one branch for TOF digits
701 if (fDigits && gAlice->TreeD() && oD){
702 MakeBranchInTree(gAlice->TreeD(),
703 branchname, &fDigits,buffersize, file) ;
708 // one branch for TOF sdigits
712 if (fSDigits && gAlice->TreeS() && oS){
713 MakeBranchInTree(gAlice->TreeS(),
714 branchname, &fSDigits,buffersize, file) ;
719 // one branch for TOF reconstructed particles
723 if (fReconParticles && gAlice->TreeR() && oR){
724 MakeBranchInTree(gAlice->TreeR(),
725 branchname, &fReconParticles,buffersize, file) ;
730 //____________________________________________________________________________
731 void AliTOF::Makehits(Bool_t hits)
733 // default argument used, see AliTOF.h
734 // Enable/Disable the writing of the TOF-hits branch
736 // by default : enabled for TOFv1, v2, v3, v4
737 // disabled for TOFv0
739 if (hits && (IsVersion()!=0))
740 fIdSens = gMC->VolId("FPAD");
742 cout << "Option for writing the TOF-hits branch on TreeH: disabled" << endl;
745 //____________________________________________________________________________
746 void AliTOF::FinishEvent()
751 //___________________________________________
752 void AliTOF::SDigits2Digits()
755 // Generate digits performing merging
758 int nparticles = gAlice->GetNtrack();
759 cout << "Particles :" <<nparticles<<endl;
760 if (nparticles > 0 ) {
762 AliTOF::Hits2Digits();
766 cout<<"AliTOF::SDigits2Digits"<<endl;
769 cout<<"AliTOF::SDigits2Digits Init"<<endl;
771 cout<<"AliTOF::SDigits2Digits Digitise() "<<endl;
775 //---------------------------------------------------------------------
776 void AliTOF::SetMerger(AliTOFMerger* merger)
778 // Set pointer to merger
782 //---------------------------------------------------------------------
783 AliTOFMerger* AliTOF::Merger()
785 // Return pointer to merger
790 //---------------------------------------------------------------------
792 void AliTOF::Hits2SDigits()
795 // Use the TOF SDigitizer to make TOF SDigits
799 cout<<"ALiTOF::Hits2SDigits> start...\n";
802 //char * fileSDigits = 0 ;
803 char * fileHeader = 0;
804 AliTOFSDigitizer * sd = new AliTOFSDigitizer(fileHeader) ;
812 //___________________________________________________________________________
813 Bool_t AliTOF::CheckOverlap(Int_t* vol, Float_t* digit,Int_t Track)
816 // Checks if 2 or more hits belong to the same pad.
817 // In this case the data assigned to the digit object
818 // are the ones of the first hit in order of Time.
819 // 2 hits from the same track on the same pad are collected.
820 // Called only by Hits2SDigits.
821 // This procedure has to be optimized in the next TOF release.
824 Bool_t overlap = kFALSE;
827 for (Int_t ndig=0; ndig<fSDigits->GetEntries(); ndig++){
828 AliTOFdigit* currentDigit = (AliTOFdigit*)(fSDigits->UncheckedAt(ndig));
829 currentDigit->GetLocation(vol2);
831 // check on digit volume
832 for (Int_t i=0;i<=4;i++){
834 if (vol[i]!=vol2[i]) idem=kFALSE;}
836 if (idem){ // same pad fired
837 Float_t tdc2 = digit[0];
838 Float_t tdc1 = currentDigit->GetTdc();
840 // we separate two digits on the same pad if
841 // they are separated in time by at least 25 ns
842 // remember that tdc time is given in ps
844 if (TMath::Abs(tdc1-tdc2)<25000){
845 // in case of overlap we take the earliest
847 currentDigit->SetTdc(tdc2);
848 currentDigit->SetAdc(digit[1]);
851 currentDigit->SetTdc(tdc1);
852 currentDigit->SetAdc(digit[1]);
854 currentDigit->AddTrack(Track); // add track number in the track array
860 } // close if (idem) -> two digits on the same TOF pad
862 } // end loop on existing sdigits
868 //____________________________________________________________________________
869 void AliTOF::Digits2Raw(Int_t evNumber)
872 // Starting from digits, writes the
873 // Raw Data objects, i.e. a
874 // TClonesArray of 18 AliTOFRawSector objects
879 // do nothing if no particles
880 Int_t nparticles = gAlice->GetEvent(evNumber);
881 if (nparticles <= 0) return;
883 tD = gAlice->TreeD();
885 TClonesArray* tofdigits = this->Digits();
886 Int_t ndigits = tofdigits->GetEntriesFast();
888 TClonesArray* rawsectors = new TClonesArray("AliTOFRawSector",fNTof+2);
890 for (Int_t isect=1;isect<=fNTof;isect++){
891 AliTOFRawSector* currentSector = (AliTOFRawSector*)rawsectors->UncheckedAt(isect);
892 TClonesArray* rocData = (TClonesArray*)currentSector->GetRocData();
894 for (Int_t digit=0; digit<ndigits; digit++){
895 AliTOFdigit* currentDigit = (AliTOFdigit*)tofdigits->UncheckedAt(digit);
896 Int_t sector = currentDigit->GetSector();
898 Int_t pad = currentDigit -> GetTotPad();
899 Int_t roc = (Int_t)(pad/fNPadXRoc)-1;
900 if (roc>=fNRoc) printf("Wrong n. of ROC ! Roc = %i",roc);
901 Int_t padRoc = (Int_t) pad%fNPadXRoc;
902 Int_t fec = (Int_t)(padRoc/fNFec)-1;
903 Int_t tdc = (Int_t)(padRoc%fNFec)-1;
904 Float_t time = currentDigit->GetTdc();
905 Float_t charge = currentDigit->GetAdc();
906 AliTOFRoc* currentROC = (AliTOFRoc*)rocData->UncheckedAt(roc);
908 currentROC->AddItem(fec, tdc, error, charge, time);
909 } // close if (sector==isect) i.e. end loop on digits for the current sector
910 } // end loop on TOF digits
912 UInt_t totSize=16,rocSize=0;
913 UInt_t rocHead[14],rocChek[14];
914 UInt_t globalCheckSum=0;
916 for (UInt_t iRoc = 1; iRoc<(UInt_t)fNRoc; iRoc++){
917 AliTOFRoc* currentRoc = (AliTOFRoc*)rocData->UncheckedAt(iRoc);
918 rocSize = currentRoc->GetItems()*2+1;
919 totSize += rocSize*4;
920 if (rocSize>=TMath::Power(2,16)) rocSize=0;
921 rocHead[iRoc] = iRoc<<28;
922 rocHead[iRoc] += rocSize;
923 rocChek[iRoc] = currentRoc->GetCheckSum();
924 Int_t headCheck = currentRoc->BitCount(rocHead[iRoc]);
925 globalCheckSum += headCheck;
926 globalCheckSum += rocChek[iRoc];
929 AliTOFRoc* dummyRoc = new AliTOFRoc();
931 if (totSize>=TMath::Power(2,24)) totSize=0;
932 UInt_t header = totSize;
933 UInt_t sectId = ((UInt_t)isect)<<24;
935 globalCheckSum += dummyRoc->BitCount(header);
936 currentSector->SetGlobalCS(globalCheckSum);
937 currentSector->SetHeader(header);
941 //____________________________________________________________________________
942 void AliTOF::Raw2Digits(Int_t evNumber)
945 // Converts Raw Data objects into digits objects.
946 // We schematize the raw data with a
947 // TClonesArray of 18 AliTOFRawSector objects
959 Int_t nparticles = gAlice->GetEvent(evNumber);
960 if (nparticles <= 0) return;
962 tD = gAlice->TreeD();
964 TClonesArray* rawsectors = new TClonesArray("AliTOFRawSector",fNTof+2);
966 for(Int_t nSec=1; nSec<=fNTof; nSec++){
967 AliTOFRawSector* currentSector = (AliTOFRawSector*)rawsectors->UncheckedAt(nSec);
968 TClonesArray* rocData = (TClonesArray*)currentSector->GetRocData();
969 for(Int_t nRoc=1; nRoc<=14; nRoc++){
970 AliTOFRoc* currentRoc = (AliTOFRoc*)rocData->UncheckedAt(nRoc);
971 Int_t currentItems = currentRoc->GetItems();
972 for(Int_t item=1; item<currentItems; item++){
973 Int_t nPad = currentRoc->GetTotPad(item);
975 Int_t nStrip = (Int_t)(nPad/fPadXStr)+1;
977 if (nStrip<=fNStripC+2*fNStripB+fNStripA) nPlate = 4;
978 if (nStrip<=fNStripC+fNStripB+fNStripA) nPlate = 3;
979 if (nStrip<=fNStripC+fNStripB) nPlate = 2;
980 if (nStrip<=fNStripC) nPlate=1;
984 case 2: nStrip -= (fNStripC);
986 case 3: nStrip -= (fNStripC+fNStripB);
988 case 4: nStrip -= (fNStripC+fNStripB+fNStripA);
990 case 5: nStrip -= (fNStripC+2*fNStripB+fNStripA);
994 Int_t pad = nPad%fPadXStr;
995 if (pad==0) pad=fPadXStr;
996 Int_t nPadX=0, nPadZ=0;
997 (pad>fNpadX)? nPadX -= fNpadX : nPadX = pad ;
999 (pad>fNpadX)? nPadZ = 2 : nPadZ = 1 ;
1002 Float_t tdc = currentRoc->GetTime(item,error);
1003 if (!error) digit[0]=tdc;
1004 digit[1] = currentRoc->GetCharge(item);
1005 AddDigit(tracks,vol,digit);
1010 tD->Write(0,TObject::kOverwrite);
1013 ////////////////////////////////////////////////////////////////////////
1014 void AliTOF::RecreateSDigitsArray() {
1016 // delete TClonesArray fSDigits and create it again
1017 // needed for backward compatability with PPR test production
1020 fSDigits = new TClonesArray("AliTOFSDigit", 1000);
1022 ////////////////////////////////////////////////////////////////////////
1023 void AliTOF::CreateSDigitsArray() {
1025 // create TClonesArray fSDigits
1026 // needed for backward compatability with PPR test production
1028 fSDigits = new TClonesArray("AliTOFSDigit", 1000);