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 1.35 2002/03/21 13:52:53 vicinanz
19 Minor changes to AliTOF constructor
21 Revision 1.34 2002/02/20 13:41:38 hristov
22 Default arguments set only in the header file
24 Revision 1.33 2002/02/19 10:39:38 vicinanz
25 t0 classes added and material update (steel added)
27 Revision 1.31 2001/11/22 11:22:51 hristov
28 Updated version of TOF digitization, N^2 problem solved (J.Chudoba)
30 Revision 1.30 2001/10/21 18:30:39 hristov
31 Several pointers were set to zero in the default constructors to avoid memory management problems
33 Revision 1.29 2001/10/17 14:19:24 hristov
34 delete replaced by delete []
36 Revision 1.28 2001/10/05 12:02:01 vicinanz
37 Minor improvements on Merger and SDigitizer
39 Revision 1.27 2001/10/02 13:03:13 vicinanz
40 Minor improvements on the code
42 Revision 1.26 2001/09/27 10:39:20 vicinanz
43 SDigitizer and Merger added
45 Revision 1.25 2001/09/07 08:37:40 hristov
46 Pointers initialised to 0 in the default constructor
48 Revision 1.24 2001/09/05 16:31:00 hristov
49 The deletion of TOF folders temporarily commented out
51 Revision 1.23 2001/08/29 12:59:01 vicinanz
52 Minor changes to the Digitizer procedure
54 Revision 1.22 2001/08/28 08:45:58 vicinanz
55 TTask and TFolder structures implemented
57 Revision 1.21 2001/05/16 14:57:24 alibrary
58 New files for folders and Stack
60 Revision 1.20 2001/05/04 10:09:47 vicinanz
61 Major upgrades to the strip structure
63 Revision 1.19 2001/03/12 17:47:25 hristov
64 Changes needed on Sun with CC 5.0
66 Revision 1.18 2001/01/26 19:57:42 hristov
67 Major upgrade of AliRoot code
69 Revision 1.17 2000/10/19 09:58:14 vicinanz
70 Updated Hits2Digit procedure
72 Revision 1.16 2000/10/02 21:28:17 fca
73 Removal of useless dependecies via forward declarations
75 Revision 1.15 2000/05/18 14:33:01 vicinanz
76 Modified to be full HP compliant
78 Revision 1.14 2000/05/15 19:32:36 fca
81 Revision 1.13 2000/05/10 16:52:18 vicinanz
82 New TOF version with holes for PHOS/RICH
84 Revision 1.11.2.1 2000/05/10 09:37:15 vicinanz
85 New version with Holes for PHOS/RICH
87 Revision 1.11 1999/11/05 22:39:06 fca
90 Revision 1.10 1999/11/01 20:41:57 fca
91 Added protections against using the wrong version of FRAME
93 Revision 1.9 1999/10/15 15:35:19 fca
94 New version for frame1099 with and without holes
96 Revision 1.9 1999/09/29 09:24:33 fca
97 Introduction of the Copyright and cvs Log
101 ///////////////////////////////////////////////////////////////////////////////
104 // This class contains the basic functions for the Time Of Flight //
105 // detector. Functions specific to one particular geometry are //
106 // contained in the derived classes //
108 // VERSIONE WITH 5 SYMMETRIC MODULES ALONG Z AXIS
109 // ==============================================
111 // VERSION WITH HOLES FOR PHOS AND TRD IN SPACEFRAME WITH HOLES
113 // Volume sensibile : FPAD
119 <img src="picts/AliTOFClass.gif">
125 ///////////////////////////////////////////////////////////////////////////////
127 #include <iostream.h>
128 #include <strstream.h>
133 #include "AliTOFhit.h"
134 #include "AliTOFhitT0.h"
135 #include "AliTOFdigit.h"
136 #include "AliTOFSDigit.h"
137 #include "AliTOFRawSector.h"
138 #include "AliTOFRoc.h"
139 #include "AliTOFRawDigit.h"
154 #include "AliConst.h"
159 //_____________________________________________________________________________
163 // Default constructor
171 fReconParticles = 0x0;
179 //_____________________________________________________________________________
180 AliTOF::AliTOF(const char *name, const char *title, Option_t *option)
181 : AliDetector(name,title)
184 // AliTOF standard constructor
186 // Here are fixed some important parameters
189 // Initialization of hits, sdigits and digits array
190 // added option for time zero analysis
191 if (strstr(option,"tzero")){
192 fHits = new TClonesArray("AliTOFhitT0", 1000);
193 cout << "tzero option requires AliTOFv4T0 as TOF version (check Your Config.C)" << endl;
195 fHits = new TClonesArray("AliTOFhit", 1000);
197 gAlice->AddHitList(fHits);
199 fSDigits = new TClonesArray("AliTOFSDigit", 1000);
200 fDigits = new TClonesArray("AliTOFdigit", 1000);
205 fReconParticles = 0x0;
209 // Digitization parameters
211 // (Transfer Functions to be inserted here)
217 // General Geometrical Parameters
218 fNTof = 18; // number of sectors
221 fZlenC = 177.5;//cm length of module C
222 fZlenB = 141.0;//cm length of module B
223 fZlenA = 106.0;//cm length of module A
224 fZtof = 371.5;//cm total semi-length of TOF detector
227 fStripLn = 122.0;//cm Strip Length
228 fSpace = 5.5;//cm Space Beetween the strip and the bottom of the plate
229 fDeadBndZ= 1.5;//cm Dead Boundaries of a Strip along Z direction (width)
230 fDeadBndX= 1.0;//cm Dead Boundaries of a Strip along X direction (length)
231 fXpad = 2.5;//cm X size of a pad
232 fZpad = 3.5;//cm Z size of a pad
233 fGapA = 4.; //cm Gap beetween tilted strip in A-type plate
234 fGapB = 6.; //cm Gap beetween tilted strip in B-type plate
235 fOverSpc = 15.3;//cm Space available for sensitive layers in radial direction
236 fNpadX = 48; // Number of pads in a strip along the X direction
237 fNpadZ = 2; // Number of pads in a strip along the Z direction
238 fPadXStr = fNpadX*fNpadZ; //Number of pads per strip
239 fNStripA = 15; // number of strips in A type module
240 fNStripB = 19; // number of strips in B type module
241 fNStripC = 20; // number of strips in C type module
243 // Physical performances
247 // DAQ characteristics
248 // cfr. TOF-TDR pag. 105 for Glossary
249 // TARODA : TOF-ALICE Read Out and Data Acquisition system
250 fPadXSector = 8928; // number of pad per sector -with no holes-
251 // ((15+2*19+2*20)*(48*2))
252 fNRoc = 14; // number of Roc (Read Out Controller) (TARODA)
253 fNFec = 32; // number of Fec (Front-End electronic Card)
255 fNTdc = 32; // number of Tdc (Time to Digital Converter)
256 fNPadXRoc = (Int_t)fPadXSector/fNRoc; // number of pads for each ROC
258 // Create TOF Folder Structure
263 //_____________________________________________________________________________
264 void AliTOF::CreateTOFFolders()
266 // create the ALICE TFolder
267 // create the ALICE TTasks
268 // create the ALICE main TFolder
269 // to be done by AliRun
271 TFolder * alice = new TFolder();
272 alice->SetNameTitle("FPAlice", "Alice Folder") ;
273 gROOT->GetListOfBrowsables()->Add(alice) ;
275 TFolder * aliceF = alice->AddFolder("folders", "Alice memory Folder") ;
276 // make it the owner of the objects that it contains
279 TFolder * geomF = aliceF->AddFolder("Geometry", "Geometry objects") ;
280 TFolder * aliceT = alice->AddFolder("tasks", "Alice tasks Folder") ;
281 // make it the owner of the objects that it contains
284 TTask * aliceDi = new TTask("(S)Digitizer", "Alice SDigitizer & Digitizer") ;
285 aliceT->Add(aliceDi);
287 TTask * aliceRe = new TTask("Reconstructioner", "Alice Reconstructioner") ;
288 aliceT->Add(aliceRe);
290 char * tempo = new char[80] ;
292 // creates the TOF Digitizer and adds it to alice main (S)Digitizer task
293 sprintf(tempo, "%sDigitizers container",GetName() ) ;
294 fDTask = new TTask(GetName(), tempo);
295 aliceDi->Add(fDTask) ;
297 // creates the TOF reconstructioner and adds it to alice main Reconstructioner task
298 sprintf(tempo, "%sReconstructioner container",GetName() ) ;
299 fReTask = new TTask(GetName(), tempo);
300 aliceRe->Add(fReTask) ;
304 // creates the TOF geometry folder
305 geomF->AddFolder("TOF", "Geometry for TOF") ;
308 //_____________________________________________________________________________
312 // it remove also the alice folder
313 // and task that TOF creates instead of AliRun
314 /* PH Temporarily commented because of problems
315 TFolder * alice = (TFolder*)gROOT->GetListOfBrowsables()->FindObject("FPAlice") ;
339 fReconParticles->Delete ();
340 delete fReconParticles;
346 //_____________________________________________________________________________
347 void AliTOF::AddHit(Int_t track, Int_t *vol, Float_t *hits)
351 // new with placement used
353 TClonesArray &lhits = *fHits;
354 new(lhits[fNhits++]) AliTOFhit(fIshunt, track, vol, hits);
357 //_____________________________________________________________________________
358 void AliTOF::AddT0Hit(Int_t track, Int_t *vol, Float_t *hits)
362 // new with placement used
364 TClonesArray &lhits = *fHits;
365 new(lhits[fNhits++]) AliTOFhitT0(fIshunt, track, vol, hits);
368 //_____________________________________________________________________________
369 void AliTOF::AddDigit(Int_t *tracks, Int_t *vol, Float_t *digits)
373 // new with placement used
375 TClonesArray &ldigits = *fDigits;
376 new (ldigits[fNdigits++]) AliTOFdigit(tracks, vol, digits);
379 //___________________________________________
380 void AliTOF::AddSDigit(Int_t tracknum, Int_t *vol, Float_t *digits)
387 TClonesArray &lSDigits = *fSDigits;
388 new(lSDigits[fNSDigits++]) AliTOFSDigit(tracknum, vol, digits);
391 //_____________________________________________________________________________
392 void AliTOF::SetTreeAddress ()
394 // Set branch address for the Hits and Digits Tree.
396 AliDetector::SetTreeAddress ();
399 TTree *treeD = gAlice->TreeD ();
406 branch = treeD->GetBranch (branchname);
408 branch->SetAddress (&fDigits);
413 // fSDigits->Clear ();
415 if (gAlice->TreeS () && fSDigits)
417 branch = gAlice->TreeS ()->GetBranch ("TOF");
419 branch->SetAddress (&fSDigits);
422 if (gAlice->TreeR() && fReconParticles)
424 branch = gAlice->TreeR()->GetBranch("TOF");
425 if (branch) branch->SetAddress(&fReconParticles) ;
429 //_____________________________________________________________________________
430 void AliTOF::CreateGeometry()
433 // Common geometry code
437 <img src="picts/AliTOFv23.gif">
441 const Double_t kPi=TMath::Pi();
442 const Double_t kDegrad=kPi/180.;
444 Float_t xTof, yTof, wall;
446 // frame inbetween TOF modules
449 // Sizes of TOF module with its support etc..
450 xTof = 2.*(fRmin*TMath::Tan(10*kDegrad)-wall/2-.5);
453 // TOF module internal definitions
454 TOFpc(xTof, yTof, fZlenC, fZlenB, fZlenA, fZtof);
457 //_____________________________________________________________________________
458 void AliTOF::DrawModule() const
461 // Draw a shaded view of the common part of the TOF geometry
464 cout << " Drawing of AliTOF"<< endl;
465 // Set everything unseen
466 gMC->Gsatt("*", "seen", -1);
468 // Set ALIC mother transparent
469 gMC->Gsatt("ALIC","SEEN",0);
471 // Set the volumes visible
472 gMC->Gsatt("FTOA","SEEN",1);
473 gMC->Gsatt("FTOB","SEEN",1);
474 gMC->Gsatt("FTOC","SEEN",1);
475 gMC->Gsatt("FLTA","SEEN",1);
476 gMC->Gsatt("FLTB","SEEN",1);
477 gMC->Gsatt("FLTC","SEEN",1);
478 gMC->Gsatt("FSTR","SEEN",1);
480 gMC->Gdopt("hide", "on");
481 gMC->Gdopt("shad", "on");
482 gMC->Gsatt("*", "fill", 7);
483 gMC->SetClipBox(".");
484 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
486 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
487 gMC->Gdhead(1111, "Time Of Flight");
488 gMC->Gdman(18, 4, "MAN");
489 gMC->Gdopt("hide","off");
492 //_____________________________________________________________________________
493 void AliTOF::CreateMaterials()
496 // Defines TOF materials for all versions
497 // Authors : Maxim Martemianov, Boris Zagreev (ITEP)
499 // Revision: F. Pierella 5-3-2001
500 // Bologna University
502 Int_t isxfld = gAlice->Field()->Integ();
503 Float_t sxmgmx = gAlice->Field()->Max();
506 Float_t aq[2] = { 28.0855,15.9994 };
507 Float_t zq[2] = { 14.,8. };
508 Float_t wq[2] = { 1.,2. };
511 // --- Freon C2F4H2 (TOF-TDR pagg.)
512 // Geant Manual CONS110-1, pag. 43 (Geant, Detector Description and Simulation Tool)
513 Float_t afre[3] = {12.011,18.998,1.007};
514 Float_t zfre[3] = { 6., 9., 1.};
515 Float_t wfre[3] = { 2., 4., 2.};
516 Float_t densfre = 0.00375;
517 // http://www.fi.infn.it/sezione/prevprot/gas/freon.html
520 //-- Isobutane quencher C4H10 (5% in the sensitive mixture)
521 Float_t aiso[2] = {12.011,1.007};
522 Float_t ziso[2] = { 6., 1.};
523 Float_t wiso[2] = { 4., 10.};
524 Float_t densiso = .......; // (g/cm3) density
525 Int_t nfre = -2; // < 0 i.e. proportion by number of atoms of each kind
526 //-- SF6 (5% in the sensitive mixture)
527 Float_t asf[3] = {32.066,18.998};
528 Float_t zsf[3] = { 16., 9.};
529 Float_t wsf[3] = { 1., 6.};
530 Float_t denssf = .....; // (g/cm3) density
531 Int_t nfre = -2; // < 0 i.e. proportion by number of atoms of each kind
534 Float_t ac[2] = {12.,16.};
535 Float_t zc[2] = { 6., 8.};
536 Float_t wc[2] = { 1., 2.};
537 Float_t dc = .001977;
539 // For mylar (C5H4O2)
540 Float_t amy[3] = { 12., 1., 16. };
541 Float_t zmy[3] = { 6., 1., 8. };
542 Float_t wmy[3] = { 5., 4., 2. };
545 // For polyethilene (CH2) - honeycomb -
546 Float_t ape[2] = { 12., 1. };
547 Float_t zpe[2] = { 6., 1. };
548 Float_t wpe[2] = { 1., 2. };
549 Float_t dpe = 0.935*0.479; //To have 1%X0 for 1cm as for honeycomb
552 Float_t ag10[4] = { 12.,1.,16.,28. };
553 Float_t zg10[4] = { 6.,1., 8.,14. };
554 Float_t wmatg10[4] = { .259,.288,.248,.205 };
555 Float_t densg10 = 1.7;
558 Float_t adme[5] = { 12.,1.,16.,19.,79. };
559 Float_t zdme[5] = { 6.,1., 8., 9.,35. };
560 Float_t wmatdme[5] = { .4056,.0961,.2562,.1014,.1407 };
561 Float_t densdme = .00205;
563 // ---- ALUMINA (AL203)
564 Float_t aal[2] = { 27.,16.};
565 Float_t zal[2] = { 13., 8.};
566 Float_t wmatal[2] = { 2.,3. };
567 Float_t densal = 2.3;
570 Float_t awa[2] = { 1., 16. };
571 Float_t zwa[2] = { 1., 8. };
572 Float_t wwa[2] = { 2., 1. };
577 Float_t asteel[4] = { 55.847,51.9961,58.6934,28.0855 };
578 Float_t zsteel[4] = { 26.,24.,28.,14. };
579 Float_t wsteel[4] = { .715,.18,.1,.005 };
582 //AliMaterial(0, "Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
583 AliMaterial( 1, "Air$",14.61,7.3,0.001205,30423.24,67500.);
584 AliMaterial( 2, "Cu $", 63.54, 29.0, 8.96, 1.43, 14.8);
585 AliMaterial( 3, "C $", 12.01, 6.0, 2.265,18.8, 74.4);
586 AliMixture ( 4, "Polyethilene$", ape, zpe, dpe, npe, wpe);
587 AliMixture ( 5, "G10$", ag10, zg10, densg10, nlmatg10, wmatg10);
588 AliMixture ( 6, "DME ", adme, zdme, densdme, nlmatdme, wmatdme);
589 AliMixture ( 7, "CO2$", ac, zc, dc, nc, wc);
590 AliMixture ( 8, "ALUMINA$", aal, zal, densal, nlmatal, wmatal);
591 AliMaterial( 9, "Al $", 26.98, 13., 2.7, 8.9, 37.2);
592 AliMaterial(10, "C-TRD$", 12.01, 6., 2.265*18.8/69.282*15./100, 18.8, 74.4); // for 15%
593 AliMixture (11, "Mylar$", amy, zmy, dmy, nmy, wmy);
594 AliMixture (12, "Freon$", afre, zfre, densfre, nfre, wfre);
595 AliMixture (13, "Quartz$", aq, zq, dq, nq, wq);
596 AliMixture (14, "Water$", awa, zwa, dwa, nwa, wwa);
597 AliMixture (15, "STAINLESS STEEL$", asteel, zsteel, 7.88, 4, wsteel);
599 Float_t epsil, stmin, deemax, stemax;
602 // EPSIL = 0.1 ! Tracking precision,
603 // STEMAX = 0.1 ! Maximum displacement for multiple scattering
604 // DEEMAX = 0.1 ! Maximum fractional energy loss, DLS
608 epsil = .001; // Tracking precision,
609 stemax = -1.; // Maximum displacement for multiple scattering
610 deemax = -.3; // Maximum fractional energy loss, DLS
613 AliMedium( 1, "Air$" , 1, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
614 AliMedium( 2, "Cu $" , 2, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
615 AliMedium( 3, "C $" , 3, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
616 AliMedium( 4, "Pol$" , 4, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
617 AliMedium( 5, "G10$" , 5, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
618 AliMedium( 6, "DME$" , 6, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
619 AliMedium( 7, "CO2$" , 7, 0, isxfld, sxmgmx, 10., -.01, -.1, .01, -.01);
620 AliMedium( 8,"ALUMINA$", 8, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
621 AliMedium( 9,"Al Frame$",9, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
622 AliMedium(10, "DME-S$", 6, 1, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
623 AliMedium(11, "C-TRD$", 10, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
624 AliMedium(12, "Myl$" , 11, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
625 AliMedium(13, "Fre$" , 12, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
626 AliMedium(14, "Fre-S$", 12, 1, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
627 AliMedium(15, "Glass$", 13, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
628 AliMedium(16, "Water$", 14, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
629 AliMedium(17, "STEEL$", 15, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
632 //_____________________________________________________________________________
633 Int_t AliTOF::DistancetoPrimitive(Int_t , Int_t ) const
636 // Returns distance from mouse pointer to detector, default version
641 //___________________________________________
642 void AliTOF::ResetHits ()
644 // Reset number of clusters and the cluster array for this detector
645 AliDetector::ResetHits ();
648 //____________________________________________
649 void AliTOF::ResetDigits ()
652 // Reset number of digits and the digits array for this detector
653 AliDetector::ResetDigits ();
656 //_____________________________________________________________________________
660 // Initialise TOF detector after it has been built
662 // Set id of TOF sensitive volume
663 if (IsVersion() !=0) fIdSens=gMC->VolId("FPAD");
667 //____________________________________________________________________________
668 void AliTOF::MakeBranch(Option_t* option, const char *file)
671 // Initializes the Branches of the TOF inside the
672 // trees written for each event.
673 // AliDetector::MakeBranch initializes just the
674 // Branch inside TreeH. Here we add the branches in
675 // TreeD, TreeS and TreeR.
677 AliDetector::MakeBranch(option,file);
679 Int_t buffersize = 4000;
680 Char_t branchname[10];
681 sprintf(branchname,"%s",GetName());
683 const char *oD = strstr(option,"D");
684 const char *oS = strstr(option,"S");
685 const char *oR = strstr(option,"R");
689 // one branch for TOF digits
693 if (fDigits && gAlice->TreeD() && oD){
694 MakeBranchInTree(gAlice->TreeD(),
695 branchname, &fDigits,buffersize, file) ;
700 // one branch for TOF sdigits
704 if (fSDigits && gAlice->TreeS() && oS){
705 MakeBranchInTree(gAlice->TreeS(),
706 branchname, &fSDigits,buffersize, file) ;
711 // one branch for TOF reconstructed particles
715 if (fReconParticles && gAlice->TreeR() && oR){
716 MakeBranchInTree(gAlice->TreeR(),
717 branchname, &fReconParticles,buffersize, file) ;
722 //____________________________________________________________________________
723 void AliTOF::Makehits(Bool_t hits)
725 // default argument used, see AliTOF.h
726 // Enable/Disable the writing of the TOF-hits branch
728 // by default : enabled for TOFv1, v2, v3, v4
729 // disabled for TOFv0
731 if (hits && (IsVersion()!=0))
732 fIdSens = gMC->VolId("FPAD");
734 cout << "Option for writing the TOF-hits branch on TreeH: disabled" << endl;
737 //____________________________________________________________________________
738 void AliTOF::FinishEvent()
743 //___________________________________________
744 void AliTOF::SDigits2Digits()
747 // Generate digits performing merging
750 int nparticles = gAlice->GetNtrack();
751 cout << "Particles :" <<nparticles<<endl;
752 if (nparticles > 0 ) {
754 AliTOF::Hits2Digits();
758 cout<<"AliTOF::SDigits2Digits"<<endl;
761 cout<<"AliTOF::SDigits2Digits Init"<<endl;
763 cout<<"AliTOF::SDigits2Digits Digitise() "<<endl;
767 //---------------------------------------------------------------------
768 void AliTOF::SetMerger(AliTOFMerger* merger)
770 // Set pointer to merger
774 //---------------------------------------------------------------------
775 AliTOFMerger* AliTOF::Merger()
777 // Return pointer to merger
782 //---------------------------------------------------------------------
784 void AliTOF::Hits2SDigits()
787 // Use the TOF SDigitizer to make TOF SDigits
791 cout<<"ALiTOF::Hits2SDigits> start...\n";
794 //char * fileSDigits = 0 ;
795 char * fileHeader = 0;
796 AliTOFSDigitizer * sd = new AliTOFSDigitizer(fileHeader) ;
804 //___________________________________________________________________________
805 Bool_t AliTOF::CheckOverlap(Int_t* vol, Float_t* digit,Int_t Track)
808 // Checks if 2 or more hits belong to the same pad.
809 // In this case the data assigned to the digit object
810 // are the ones of the first hit in order of Time.
811 // 2 hits from the same track on the same pad are collected.
812 // Called only by Hits2SDigits.
813 // This procedure has to be optimized in the next TOF release.
816 Bool_t overlap = kFALSE;
819 for (Int_t ndig=0; ndig<fSDigits->GetEntries(); ndig++){
820 AliTOFdigit* currentDigit = (AliTOFdigit*)(fSDigits->UncheckedAt(ndig));
821 currentDigit->GetLocation(vol2);
823 // check on digit volume
824 for (Int_t i=0;i<=4;i++){
826 if (vol[i]!=vol2[i]) idem=kFALSE;}
828 if (idem){ // same pad fired
829 Float_t tdc2 = digit[0];
830 Float_t tdc1 = currentDigit->GetTdc();
832 // we separate two digits on the same pad if
833 // they are separated in time by at least 25 ns
834 // remember that tdc time is given in ps
836 if (TMath::Abs(tdc1-tdc2)<25000){
837 // in case of overlap we take the earliest
839 currentDigit->SetTdc(tdc2);
840 currentDigit->SetAdc(digit[1]);
843 currentDigit->SetTdc(tdc1);
844 currentDigit->SetAdc(digit[1]);
846 currentDigit->AddTrack(Track); // add track number in the track array
852 } // close if (idem) -> two digits on the same TOF pad
854 } // end loop on existing sdigits
860 //____________________________________________________________________________
861 void AliTOF::Digits2Raw(Int_t evNumber)
864 // Starting from digits, writes the
865 // Raw Data objects, i.e. a
866 // TClonesArray of 18 AliTOFRawSector objects
871 // do nothing if no particles
872 Int_t nparticles = gAlice->GetEvent(evNumber);
873 if (nparticles <= 0) return;
875 tD = gAlice->TreeD();
877 TClonesArray* tofdigits = this->Digits();
878 Int_t ndigits = tofdigits->GetEntriesFast();
880 TClonesArray* rawsectors = new TClonesArray("AliTOFRawSector",fNTof+2);
882 for (Int_t isect=1;isect<=fNTof;isect++){
883 AliTOFRawSector* currentSector = (AliTOFRawSector*)rawsectors->UncheckedAt(isect);
884 TClonesArray* rocData = (TClonesArray*)currentSector->GetRocData();
886 for (Int_t digit=0; digit<ndigits; digit++){
887 AliTOFdigit* currentDigit = (AliTOFdigit*)tofdigits->UncheckedAt(digit);
888 Int_t sector = currentDigit->GetSector();
890 Int_t pad = currentDigit -> GetTotPad();
891 Int_t roc = (Int_t)(pad/fNPadXRoc)-1;
892 if (roc>=fNRoc) printf("Wrong n. of ROC ! Roc = %i",roc);
893 Int_t padRoc = (Int_t) pad%fNPadXRoc;
894 Int_t fec = (Int_t)(padRoc/fNFec)-1;
895 Int_t tdc = (Int_t)(padRoc%fNFec)-1;
896 Float_t time = currentDigit->GetTdc();
897 Float_t charge = currentDigit->GetAdc();
898 AliTOFRoc* currentROC = (AliTOFRoc*)rocData->UncheckedAt(roc);
900 currentROC->AddItem(fec, tdc, error, charge, time);
901 } // close if (sector==isect) i.e. end loop on digits for the current sector
902 } // end loop on TOF digits
904 UInt_t totSize=16,rocSize=0;
905 UInt_t rocHead[14],rocChek[14];
906 UInt_t globalCheckSum=0;
908 for (UInt_t iRoc = 1; iRoc<(UInt_t)fNRoc; iRoc++){
909 AliTOFRoc* currentRoc = (AliTOFRoc*)rocData->UncheckedAt(iRoc);
910 rocSize = currentRoc->GetItems()*2+1;
911 totSize += rocSize*4;
912 if (rocSize>=TMath::Power(2,16)) rocSize=0;
913 rocHead[iRoc] = iRoc<<28;
914 rocHead[iRoc] += rocSize;
915 rocChek[iRoc] = currentRoc->GetCheckSum();
916 Int_t headCheck = currentRoc->BitCount(rocHead[iRoc]);
917 globalCheckSum += headCheck;
918 globalCheckSum += rocChek[iRoc];
921 AliTOFRoc* dummyRoc = new AliTOFRoc();
923 if (totSize>=TMath::Power(2,24)) totSize=0;
924 UInt_t header = totSize;
925 UInt_t sectId = ((UInt_t)isect)<<24;
927 globalCheckSum += dummyRoc->BitCount(header);
928 currentSector->SetGlobalCS(globalCheckSum);
929 currentSector->SetHeader(header);
933 //____________________________________________________________________________
934 void AliTOF::Raw2Digits(Int_t evNumber)
937 // Converts Raw Data objects into digits objects.
938 // We schematize the raw data with a
939 // TClonesArray of 18 AliTOFRawSector objects
951 Int_t nparticles = gAlice->GetEvent(evNumber);
952 if (nparticles <= 0) return;
954 tD = gAlice->TreeD();
956 TClonesArray* rawsectors = new TClonesArray("AliTOFRawSector",fNTof+2);
958 for(Int_t nSec=1; nSec<=fNTof; nSec++){
959 AliTOFRawSector* currentSector = (AliTOFRawSector*)rawsectors->UncheckedAt(nSec);
960 TClonesArray* rocData = (TClonesArray*)currentSector->GetRocData();
961 for(Int_t nRoc=1; nRoc<=14; nRoc++){
962 AliTOFRoc* currentRoc = (AliTOFRoc*)rocData->UncheckedAt(nRoc);
963 Int_t currentItems = currentRoc->GetItems();
964 for(Int_t item=1; item<currentItems; item++){
965 Int_t nPad = currentRoc->GetTotPad(item);
967 Int_t nStrip = (Int_t)(nPad/fPadXStr)+1;
969 if (nStrip<=fNStripC+2*fNStripB+fNStripA) nPlate = 4;
970 if (nStrip<=fNStripC+fNStripB+fNStripA) nPlate = 3;
971 if (nStrip<=fNStripC+fNStripB) nPlate = 2;
972 if (nStrip<=fNStripC) nPlate=1;
976 case 2: nStrip -= (fNStripC);
978 case 3: nStrip -= (fNStripC+fNStripB);
980 case 4: nStrip -= (fNStripC+fNStripB+fNStripA);
982 case 5: nStrip -= (fNStripC+2*fNStripB+fNStripA);
986 Int_t pad = nPad%fPadXStr;
987 if (pad==0) pad=fPadXStr;
988 Int_t nPadX=0, nPadZ=0;
989 (pad>fNpadX)? nPadX -= fNpadX : nPadX = pad ;
991 (pad>fNpadX)? nPadZ = 2 : nPadZ = 1 ;
994 Float_t tdc = currentRoc->GetTime(item,error);
995 if (!error) digit[0]=tdc;
996 digit[1] = currentRoc->GetCharge(item);
997 AddDigit(tracks,vol,digit);
1002 tD->Write(0,TObject::kOverwrite);