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 1.23 2001/08/29 12:59:01 vicinanz
19 Minor changes to the Digitizer procedure
21 Revision 1.22 2001/08/28 08:45:58 vicinanz
22 TTask and TFolder structures implemented
24 Revision 1.21 2001/05/16 14:57:24 alibrary
25 New files for folders and Stack
27 Revision 1.20 2001/05/04 10:09:47 vicinanz
28 Major upgrades to the strip structure
30 Revision 1.19 2001/03/12 17:47:25 hristov
31 Changes needed on Sun with CC 5.0
33 Revision 1.18 2001/01/26 19:57:42 hristov
34 Major upgrade of AliRoot code
36 Revision 1.17 2000/10/19 09:58:14 vicinanz
37 Updated Hits2Digit procedure
39 Revision 1.16 2000/10/02 21:28:17 fca
40 Removal of useless dependecies via forward declarations
42 Revision 1.15 2000/05/18 14:33:01 vicinanz
43 Modified to be full HP compliant
45 Revision 1.14 2000/05/15 19:32:36 fca
48 Revision 1.13 2000/05/10 16:52:18 vicinanz
49 New TOF version with holes for PHOS/RICH
51 Revision 1.11.2.1 2000/05/10 09:37:15 vicinanz
52 New version with Holes for PHOS/RICH
54 Revision 1.11 1999/11/05 22:39:06 fca
57 Revision 1.10 1999/11/01 20:41:57 fca
58 Added protections against using the wrong version of FRAME
60 Revision 1.9 1999/10/15 15:35:19 fca
61 New version for frame1099 with and without holes
63 Revision 1.9 1999/09/29 09:24:33 fca
64 Introduction of the Copyright and cvs Log
68 ///////////////////////////////////////////////////////////////////////////////
71 // This class contains the basic functions for the Time Of Flight //
72 // detector. Functions specific to one particular geometry are //
73 // contained in the derived classes //
75 // VERSIONE WITH 5 SYMMETRIC MODULES ALONG Z AXIS
76 // ==============================================
78 // VERSION WITH HOLES FOR PHOS AND TRD IN SPACEFRAME WITH HOLES
80 // Volume sensibile : FPAD
86 <img src="picts/AliTOFClass.gif">
92 ///////////////////////////////////////////////////////////////////////////////
95 #include <strstream.h>
98 #include "AliTOFhit.h"
99 #include "AliTOFdigit.h"
100 #include "AliTOFRawSector.h"
101 #include "AliTOFRoc.h"
102 #include "AliTOFRawDigit.h"
117 #include "AliConst.h"
122 //_____________________________________________________________________________
126 // Default constructor
135 //_____________________________________________________________________________
136 AliTOF::AliTOF(const char *name, const char *title)
137 : AliDetector(name,title)
140 // AliTOF standard constructor
142 // Here are fixed some important parameters
145 // Initialization of hits, sdigits and digits array
147 fHits = new TClonesArray("AliTOFhit", 405);
148 gAlice->AddHitList(fHits);
151 fSDigits = new TClonesArray("AliTOFdigit", 405);
153 fDigits = new TClonesArray("AliTOFdigit", 405);
157 // Digitization parameters
159 // (Transfer Functions to be inserted here)
165 // General Geometrical Parameters
166 fNTof = 18; // number of sectors
169 fZlenC = 177.5;//cm length of module C
170 fZlenB = 141.0;//cm length of module B
171 fZlenA = 106.0;//cm length of module A
172 fZtof = 370.5;//cm total semi-length of TOF detector
175 fStripLn = 122.0;//cm Strip Length
176 fSpace = 5.5;//cm Space Beetween the strip and the bottom of the plate
177 fDeadBndZ= 1.5;//cm Dead Boundaries of a Strip along Z direction (width)
178 fDeadBndX= 1.0;//cm Dead Boundaries of a Strip along X direction (length)
179 fXpad = 2.5;//cm X size of a pad
180 fZpad = 3.5;//cm Z size of a pad
181 fGapA = 4.; //cm Gap beetween tilted strip in A-type plate
182 fGapB = 6.; //cm Gap beetween tilted strip in B-type plate
183 fOverSpc = 15.3;//cm Space available for sensitive layers in radial direction
184 fNpadX = 48; // Number of pads in a strip along the X direction
185 fNpadZ = 2; // Number of pads in a strip along the Z direction
186 fPadXStr = fNpadX*fNpadZ; //Number of pads per strip
187 fNStripA = 15; // number of strips in A type module
188 fNStripB = 19; // number of strips in B type module
189 fNStripC = 20; // number of strips in C type module
191 // Physical performances
195 // DAQ characteristics
196 // cfr. TOF-TDR pag. 105 for Glossary
197 // TARODA : TOF-ALICE Read Out and Data Acquisition system
198 fPadXSector = 8928; // number of pad per sector -with no holes-
199 // ((15+2*19+2*20)*(48*2))
200 fNRoc = 14; // number of Roc (Read Out Controller) (TARODA)
201 fNFec = 32; // number of Fec (Front-End electronic Card)
203 fNTdc = 32; // number of Tdc (Time to Digital Converter)
204 fNPadXRoc = (Int_t)fPadXSector/fNRoc; // number of pads for each ROC
206 // Create TOF Folder Structure
210 //_____________________________________________________________________________
211 void AliTOF::CreateTOFFolders()
213 // create the ALICE TFolder
214 // create the ALICE TTasks
215 // create the ALICE main TFolder
216 // to be done by AliRun
218 TFolder * alice = new TFolder();
219 alice->SetNameTitle("FPAlice", "Alice Folder") ;
220 gROOT->GetListOfBrowsables()->Add(alice) ;
222 TFolder * aliceF = alice->AddFolder("folders", "Alice memory Folder") ;
223 // make it the owner of the objects that it contains
226 TFolder * geomF = aliceF->AddFolder("Geometry", "Geometry objects") ;
227 TFolder * aliceT = alice->AddFolder("tasks", "Alice tasks Folder") ;
228 // make it the owner of the objects that it contains
231 TTask * aliceDi = new TTask("(S)Digitizer", "Alice SDigitizer & Digitizer") ;
232 aliceT->Add(aliceDi);
234 TTask * aliceRe = new TTask("Reconstructioner", "Alice Reconstructioner") ;
235 aliceT->Add(aliceRe);
237 char * tempo = new char[80] ;
239 // creates the TOF Digitizer and adds it to alice main (S)Digitizer task
240 sprintf(tempo, "%sDigitizers container",GetName() ) ;
241 fDTask = new TTask(GetName(), tempo);
242 aliceDi->Add(fDTask) ;
244 // creates the TOF reconstructioner and adds it to alice main Reconstructioner task
245 sprintf(tempo, "%sReconstructioner container",GetName() ) ;
246 fReTask = new TTask(GetName(), tempo);
247 aliceRe->Add(fReTask) ;
251 // creates the TOF geometry folder
252 geomF->AddFolder("TOF", "Geometry for TOF") ;
255 //_____________________________________________________________________________
258 // remove the alice folder
259 // and task that TOF creates instead of AliRun
260 /* PH Temporarily commented because of problems
261 TFolder * alice = (TFolder*)gROOT->GetListOfBrowsables()->FindObject("FPAlice") ;
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::AddDigit(Int_t *tracks, Int_t *vol, Float_t *digits)
283 // new with placement used
285 TClonesArray &ldigits = *fDigits;
286 new (ldigits[fNdigits++]) AliTOFdigit(tracks, vol, digits);
290 //_____________________________________________________________________________
291 void AliTOF::CreateGeometry()
294 // Common geometry code
298 <img src="picts/AliTOFv23.gif">
302 const Double_t kPi=TMath::Pi();
303 const Double_t kDegrad=kPi/180.;
305 Float_t xTof, yTof, wall;
307 // frame inbetween TOF modules
310 // Sizes of TOF module with its support etc..
311 xTof = 2.*(fRmin*TMath::Tan(10*kDegrad)-wall/2-.5);
314 // TOF module internal definitions
315 TOFpc(xTof, yTof, fZlenC, fZlenB, fZlenA, fZtof);
318 //_____________________________________________________________________________
319 void AliTOF::DrawModule() const
322 // Draw a shaded view of the common part of the TOF geometry
325 cout << " Drawing of AliTOF"<< endl;
326 // Set everything unseen
327 gMC->Gsatt("*", "seen", -1);
329 // Set ALIC mother transparent
330 gMC->Gsatt("ALIC","SEEN",0);
332 // Set the volumes visible
333 gMC->Gsatt("FTOA","SEEN",1);
334 gMC->Gsatt("FTOB","SEEN",1);
335 gMC->Gsatt("FTOC","SEEN",1);
336 gMC->Gsatt("FLTA","SEEN",1);
337 gMC->Gsatt("FLTB","SEEN",1);
338 gMC->Gsatt("FLTC","SEEN",1);
339 gMC->Gsatt("FSTR","SEEN",1);
341 gMC->Gdopt("hide", "on");
342 gMC->Gdopt("shad", "on");
343 gMC->Gsatt("*", "fill", 7);
344 gMC->SetClipBox(".");
345 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
347 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
348 gMC->Gdhead(1111, "Time Of Flight");
349 gMC->Gdman(18, 4, "MAN");
350 gMC->Gdopt("hide","off");
353 //_____________________________________________________________________________
354 void AliTOF::CreateMaterials()
357 // Defines TOF materials for all versions
358 // Authors : Maxim Martemianov, Boris Zagreev (ITEP)
360 // Revision: F. Pierella 5-3-2001
361 // Bologna University
363 Int_t isxfld = gAlice->Field()->Integ();
364 Float_t sxmgmx = gAlice->Field()->Max();
367 Float_t aq[2] = { 28.0855,15.9994 };
368 Float_t zq[2] = { 14.,8. };
369 Float_t wq[2] = { 1.,2. };
372 // --- Freon C2F4H2 (TOF-TDR pagg.)
373 // Geant Manual CONS110-1, pag. 43 (Geant, Detector Description and Simulation Tool)
374 Float_t afre[3] = {12.011,18.998,1.007};
375 Float_t zfre[3] = { 6., 9., 1.};
376 Float_t wfre[3] = { 2., 4., 2.};
377 Float_t densfre = 0.00375;
378 // http://www.fi.infn.it/sezione/prevprot/gas/freon.html
381 //-- Isobutane quencher C4H10 (5% in the sensitive mixture)
382 Float_t aiso[2] = {12.011,1.007};
383 Float_t ziso[2] = { 6., 1.};
384 Float_t wiso[2] = { 4., 10.};
385 Float_t densiso = .......; // (g/cm3) density
386 Int_t nfre = -2; // < 0 i.e. proportion by number of atoms of each kind
387 //-- SF6 (5% in the sensitive mixture)
388 Float_t asf[3] = {32.066,18.998};
389 Float_t zsf[3] = { 16., 9.};
390 Float_t wsf[3] = { 1., 6.};
391 Float_t denssf = .....; // (g/cm3) density
392 Int_t nfre = -2; // < 0 i.e. proportion by number of atoms of each kind
395 Float_t ac[2] = {12.,16.};
396 Float_t zc[2] = { 6., 8.};
397 Float_t wc[2] = { 1., 2.};
398 Float_t dc = .001977;
400 // For mylar (C5H4O2)
401 Float_t amy[3] = { 12., 1., 16. };
402 Float_t zmy[3] = { 6., 1., 8. };
403 Float_t wmy[3] = { 5., 4., 2. };
406 // For polyethilene (CH2) - honeycomb -
407 Float_t ape[2] = { 12., 1. };
408 Float_t zpe[2] = { 6., 1. };
409 Float_t wpe[2] = { 1., 2. };
410 Float_t dpe = 0.935*0.479; //To have 1%X0 for 1cm as for honeycomb
413 Float_t ag10[4] = { 12.,1.,16.,28. };
414 Float_t zg10[4] = { 6.,1., 8.,14. };
415 Float_t wmatg10[4] = { .259,.288,.248,.205 };
416 Float_t densg10 = 1.7;
419 Float_t adme[5] = { 12.,1.,16.,19.,79. };
420 Float_t zdme[5] = { 6.,1., 8., 9.,35. };
421 Float_t wmatdme[5] = { .4056,.0961,.2562,.1014,.1407 };
422 Float_t densdme = .00205;
424 // ---- ALUMINA (AL203)
425 Float_t aal[2] = { 27.,16.};
426 Float_t zal[2] = { 13., 8.};
427 Float_t wmatal[2] = { 2.,3. };
428 Float_t densal = 2.3;
431 Float_t awa[2] = { 1., 16. };
432 Float_t zwa[2] = { 1., 8. };
433 Float_t wwa[2] = { 2., 1. };
437 //AliMaterial(0, "Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
438 AliMaterial( 1, "Air$",14.61,7.3,0.001205,30423.24,67500.);
439 AliMaterial( 2, "Cu $", 63.54, 29.0, 8.96, 1.43, 14.8);
440 AliMaterial( 3, "C $", 12.01, 6.0, 2.265,18.8, 74.4);
441 AliMixture ( 4, "Polyethilene$", ape, zpe, dpe, npe, wpe);
442 AliMixture ( 5, "G10$", ag10, zg10, densg10, nlmatg10, wmatg10);
443 AliMixture ( 6, "DME ", adme, zdme, densdme, nlmatdme, wmatdme);
444 AliMixture ( 7, "CO2$", ac, zc, dc, nc, wc);
445 AliMixture ( 8, "ALUMINA$", aal, zal, densal, nlmatal, wmatal);
446 AliMaterial( 9, "Al $", 26.98, 13., 2.7, 8.9, 37.2);
447 AliMaterial(10, "C-TRD$", 12.01, 6., 2.265*18.8/69.282*15./100, 18.8, 74.4); // for 15%
448 AliMixture (11, "Mylar$", amy, zmy, dmy, nmy, wmy);
449 AliMixture (12, "Freon$", afre, zfre, densfre, nfre, wfre);
450 AliMixture (13, "Quartz$", aq, zq, dq, nq, wq);
451 AliMixture (14, "Water$", awa, zwa, dwa, nwa, wwa);
453 Float_t epsil, stmin, deemax, stemax;
456 // EPSIL = 0.1 ! Tracking precision,
457 // STEMAX = 0.1 ! Maximum displacement for multiple scattering
458 // DEEMAX = 0.1 ! Maximum fractional energy loss, DLS
462 epsil = .001; // Tracking precision,
463 stemax = -1.; // Maximum displacement for multiple scattering
464 deemax = -.3; // Maximum fractional energy loss, DLS
467 AliMedium( 1, "Air$" , 1, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
468 AliMedium( 2, "Cu $" , 2, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
469 AliMedium( 3, "C $" , 3, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
470 AliMedium( 4, "Pol$" , 4, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
471 AliMedium( 5, "G10$" , 5, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
472 AliMedium( 6, "DME$" , 6, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
473 AliMedium( 7, "CO2$" , 7, 0, isxfld, sxmgmx, 10., -.01, -.1, .01, -.01);
474 AliMedium( 8,"ALUMINA$", 8, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
475 AliMedium( 9,"Al Frame$",9, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
476 AliMedium(10, "DME-S$", 6, 1, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
477 AliMedium(11, "C-TRD$", 10, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
478 AliMedium(12, "Myl$" , 11, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
479 AliMedium(13, "Fre$" , 12, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
480 AliMedium(14, "Fre-S$", 12, 1, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
481 AliMedium(15, "Glass$", 13, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
482 AliMedium(16, "Water$", 14, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
485 //_____________________________________________________________________________
486 Int_t AliTOF::DistancetoPrimitive(Int_t , Int_t ) const
489 // Returns distance from mouse pointer to detector, default version
494 //_____________________________________________________________________________
498 // Initialise TOF detector after it has been built
500 // Set id of TOF sensitive volume
501 if (IsVersion() !=0) fIdSens=gMC->VolId("FPAD");
505 //____________________________________________________________________________
506 void AliTOF::MakeBranch(Option_t* option, const char *file)
509 // Initializes the Branches of the TOF inside the
510 // trees written for each event.
511 // AliDetector::MakeBranch initializes just the
512 // Branch inside TreeH. Here we add the branches in
515 AliDetector::MakeBranch(option,file);
517 Int_t buffersize = 4000;
518 Char_t branchname[10];
519 sprintf(branchname,"%s",GetName());
521 const char *oD = strstr(option,"D");
522 const char *oS = strstr(option,"S");
526 // one branch for TOF digits
530 if (fDigits && gAlice->TreeD() && oD){
531 MakeBranchInTree(gAlice->TreeD(),
532 branchname, &fDigits,buffersize, file) ;
537 // one branch for TOF sdigits
541 if (fSDigits && gAlice->TreeS() && oS){
542 MakeBranchInTree(gAlice->TreeS(),
543 branchname, &fSDigits,buffersize, file) ;
548 //____________________________________________________________________________
549 void AliTOF::Makehits(Bool_t hits)
551 // default argument used, see AliTOF.h
552 // Enable/Disable the writing of the TOF-hits branch
554 // by default : enabled for TOFv1, v2, v3, v4
555 // disabled for TOFv0
557 if (hits && (IsVersion()!=0))
558 fIdSens = gMC->VolId("FPAD");
560 cout << "Option for writing the TOF-hits branch on TreeH: disabled" << endl;
563 //____________________________________________________________________________
564 void AliTOF::FinishEvent()
569 //___________________________________________
570 void AliTOF::SDigits2Digits()
575 int nparticles = gAlice->GetNtrack();
576 cout << "Particles :" <<nparticles<<endl;
577 if (nparticles > 0 ) {
578 AliTOF::Hits2Digits();
582 //____________________________________________________________________________
583 void AliTOF::Hits2Digits()
586 // Starting from the Hits Tree (TreeH), this
587 // function writes the TOF Digits Branch in the Tree (TreeD) storing
588 // the digits informations.
589 // It has to be called just at the end of an event or
590 // at the end of a whole run.
591 // It could also be called by AliTOF::Finish Event()
592 // Just for MC events.
594 // Called by the ROOT script Hits2Digits.C
596 // Simulation of detector response.
598 Int_t ver = this->IsVersion();
599 if(ver==0) return; // no digits for AliTOFv0
601 Int_t nhits = 0; // total number of hits for the current track
602 Int_t evNumber = 0; // evnumber
603 Int_t tracks[3]; // track info
604 Int_t vol[5]; // dummy location for digit
605 Float_t digit[2]; // TOF digit variables
608 // Get pointers to Alice detectors and Hits containers
609 AliDetector* TOF = gAlice->GetDetector("TOF");
612 TTree* tD = gAlice->TreeD();
614 TTree* tH = gAlice->TreeH(); // pointer to the hits tree
615 Stat_t ntracks = tH->GetEntries();
617 cout << "Total number of processed tracks in event " << gAlice->GetEvNumber() <<
618 " :" << ntracks << endl;
620 // do nothing if no tracked particles
624 // ptr to the current TOF hit
627 // Start loop on tracks in the hits containers
628 // check for the total number of processed hits
634 for (Int_t track=0; track<ntracks;track++) {
636 // loop on all hits for the current track
638 for(tofHit=(AliTOFhit*)TOF->FirstHit(track); tofHit; tofHit=(AliTOFhit*)TOF->NextHit()) {
642 vol[0] = tofHit->GetSector();
643 vol[1] = tofHit->GetPlate();
644 vol[2] = tofHit->GetPadx();
645 vol[3] = tofHit->GetPadz();
646 vol[4] = tofHit->GetStrip();
648 // 95% of efficiency to be inserted here
649 // edge effect to be inserted here
650 // cross talk to be inserted here
652 Float_t idealtime = tofHit->GetTof(); // unit s
653 idealtime *= 1.E+12; // conversion from s to ps
654 // fTimeRes is given usually in ps
655 Float_t tdctime = gRandom->Gaus(idealtime, fTimeRes);
658 // typical Landau Distribution to be inserted here
659 // instead of Gaussian Distribution
660 Float_t idealcharge = tofHit->GetEdep();
661 Float_t adccharge = gRandom->Gaus(idealcharge, fChrgRes);
662 digit[1] = adccharge;
663 Int_t tracknum = tofHit -> GetTrack();
664 tracks[0] = tracknum;
668 Bool_t overlap = CheckOverlap(vol, digit, tracknum);
670 AddDigit(tracks, vol, digit);
672 } // end loop on hits for the current track
674 } // end loop on ntracks
676 // some statistics concerning digitization
677 cout << "Total number of processed TOF hits: " << totnhits << endl;
678 cout << "Total number of created TOF digits: " << totndigits << endl;
680 } // close if TOF switched ON
682 } // close if( ntracks > 0)
685 // fill and write the branch
687 evNumber = gAlice->GetEvNumber();
689 sprintf(hname,"TreeD%d",evNumber);
693 tD->Write(hname,TObject::kOverwrite);
696 gAlice->TreeD()->Reset();
699 //___________________________________________________________________________
700 Bool_t AliTOF::CheckOverlap(Int_t* vol, Float_t* digit,Int_t Track)
703 // Checks if 2 or more hits belong to the same pad.
704 // In this case the data assigned to the digit object
705 // are the ones of the first hit in order of Time.
707 // Called only by Hits2Digits.
713 for (Int_t ndig=0; ndig<fNdigits; ndig++){
714 AliTOFdigit* currentDigit = (AliTOFdigit*)(fDigits->UncheckedAt(ndig));
715 currentDigit->GetLocation(vol2);
717 for (Int_t i=0;i<=4;i++){
718 if (vol[i]!=vol2[i]) idem=0;}
720 Float_t tdc2 = digit[0];
721 Float_t tdc1 = currentDigit->GetTdc();
723 currentDigit->SetTdc(tdc2);
724 currentDigit->SetAdc(digit[1]);
726 currentDigit->AddTrack(Track);
734 //____________________________________________________________________________
735 void AliTOF::Digits2Raw(Int_t evNumber)
738 // Starting from digits, writes the
739 // Raw Data objects, i.e. a
740 // TClonesArray of 18 AliTOFRawSector objects
745 // do nothing if no particles
746 Int_t nparticles = gAlice->GetEvent(evNumber);
747 if (nparticles <= 0) return;
749 tD = gAlice->TreeD();
751 TClonesArray* tofdigits = this->Digits();
752 Int_t ndigits = tofdigits->GetEntriesFast();
754 TClonesArray* rawsectors = new TClonesArray("AliTOFRawSector",fNTof+2);
756 for (Int_t isect=1;isect<=fNTof;isect++){
757 AliTOFRawSector* currentSector = (AliTOFRawSector*)rawsectors->UncheckedAt(isect);
758 TClonesArray* rocData = (TClonesArray*)currentSector->GetRocData();
760 for (Int_t digit=0; digit<ndigits; digit++){
761 AliTOFdigit* currentDigit = (AliTOFdigit*)tofdigits->UncheckedAt(digit);
762 Int_t sector = currentDigit->GetSector();
764 Int_t pad = currentDigit -> GetTotPad();
765 Int_t roc = (Int_t)(pad/fNPadXRoc)-1;
766 if (roc>=fNRoc) printf("Wrong n. of ROC ! Roc = %i",roc);
767 Int_t padRoc = (Int_t) pad%fNPadXRoc;
768 Int_t fec = (Int_t)(padRoc/fNFec)-1;
769 Int_t tdc = (Int_t)(padRoc%fNFec)-1;
770 Float_t time = currentDigit->GetTdc();
771 Float_t charge = currentDigit->GetAdc();
772 AliTOFRoc* currentROC = (AliTOFRoc*)rocData->UncheckedAt(roc);
774 currentROC->AddItem(fec, tdc, error, charge, time);
775 } // close if (sector==isect) i.e. end loop on digits for the current sector
776 } // end loop on TOF digits
778 UInt_t totSize=16,rocSize=0;
779 UInt_t rocHead[14],rocChek[14];
780 UInt_t globalCheckSum=0;
782 for (UInt_t iRoc = 1; iRoc<(UInt_t)fNRoc; iRoc++){
783 AliTOFRoc* currentRoc = (AliTOFRoc*)rocData->UncheckedAt(iRoc);
784 rocSize = currentRoc->GetItems()*2+1;
785 totSize += rocSize*4;
786 if (rocSize>=TMath::Power(2,16)) rocSize=0;
787 rocHead[iRoc] = iRoc<<28;
788 rocHead[iRoc] += rocSize;
789 rocChek[iRoc] = currentRoc->GetCheckSum();
790 Int_t headCheck = currentRoc->BitCount(rocHead[iRoc]);
791 globalCheckSum += headCheck;
792 globalCheckSum += rocChek[iRoc];
795 AliTOFRoc* dummyRoc = new AliTOFRoc();
797 if (totSize>=TMath::Power(2,24)) totSize=0;
798 UInt_t header = totSize;
799 UInt_t sectId = ((UInt_t)isect)<<24;
801 globalCheckSum += dummyRoc->BitCount(header);
802 currentSector->SetGlobalCS(globalCheckSum);
803 currentSector->SetHeader(header);
807 //____________________________________________________________________________
808 void AliTOF::Raw2Digits(Int_t evNumber)
811 // Converts Raw Data objects into digits objects.
812 // We schematize the raw data with a
813 // TClonesArray of 18 AliTOFRawSector objects
825 Int_t nparticles = gAlice->GetEvent(evNumber);
826 if (nparticles <= 0) return;
828 tD = gAlice->TreeD();
830 TClonesArray* rawsectors = new TClonesArray("AliTOFRawSector",fNTof+2);
832 for(Int_t nSec=1; nSec<=fNTof; nSec++){
833 AliTOFRawSector* currentSector = (AliTOFRawSector*)rawsectors->UncheckedAt(nSec);
834 TClonesArray* rocData = (TClonesArray*)currentSector->GetRocData();
835 for(Int_t nRoc=1; nRoc<=14; nRoc++){
836 AliTOFRoc* currentRoc = (AliTOFRoc*)rocData->UncheckedAt(nRoc);
837 Int_t currentItems = currentRoc->GetItems();
838 for(Int_t item=1; item<currentItems; item++){
839 Int_t nPad = currentRoc->GetTotPad(item);
841 Int_t nStrip = (Int_t)(nPad/fPadXStr)+1;
843 if (nStrip<=fNStripC+2*fNStripB+fNStripA) nPlate = 4;
844 if (nStrip<=fNStripC+fNStripB+fNStripA) nPlate = 3;
845 if (nStrip<=fNStripC+fNStripB) nPlate = 2;
846 if (nStrip<=fNStripC) nPlate=1;
850 case 2: nStrip -= (fNStripC);
852 case 3: nStrip -= (fNStripC+fNStripB);
854 case 4: nStrip -= (fNStripC+fNStripB+fNStripA);
856 case 5: nStrip -= (fNStripC+2*fNStripB+fNStripA);
860 Int_t pad = nPad%fPadXStr;
861 if (pad==0) pad=fPadXStr;
862 Int_t nPadX=0, nPadZ=0;
863 (pad>fNpadX)? nPadX -= fNpadX : nPadX = pad ;
865 (pad>fNpadX)? nPadZ = 2 : nPadZ = 1 ;
868 Float_t tdc = currentRoc->GetTime(item,error);
869 if (!error) digit[0]=tdc;
870 digit[1] = currentRoc->GetCharge(item);
871 AddDigit(tracks,vol,digit);
876 tD->Write(0,TObject::kOverwrite);