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 1.21 2001/05/16 14:57:24 alibrary
19 New files for folders and Stack
21 Revision 1.20 2001/05/04 10:09:47 vicinanz
22 Major upgrades to the strip structure
24 Revision 1.19 2001/03/12 17:47:25 hristov
25 Changes needed on Sun with CC 5.0
27 Revision 1.18 2001/01/26 19:57:42 hristov
28 Major upgrade of AliRoot code
30 Revision 1.17 2000/10/19 09:58:14 vicinanz
31 Updated Hits2Digit procedure
33 Revision 1.16 2000/10/02 21:28:17 fca
34 Removal of useless dependecies via forward declarations
36 Revision 1.15 2000/05/18 14:33:01 vicinanz
37 Modified to be full HP compliant
39 Revision 1.14 2000/05/15 19:32:36 fca
42 Revision 1.13 2000/05/10 16:52:18 vicinanz
43 New TOF version with holes for PHOS/RICH
45 Revision 1.11.2.1 2000/05/10 09:37:15 vicinanz
46 New version with Holes for PHOS/RICH
48 Revision 1.11 1999/11/05 22:39:06 fca
51 Revision 1.10 1999/11/01 20:41:57 fca
52 Added protections against using the wrong version of FRAME
54 Revision 1.9 1999/10/15 15:35:19 fca
55 New version for frame1099 with and without holes
57 Revision 1.9 1999/09/29 09:24:33 fca
58 Introduction of the Copyright and cvs Log
62 ///////////////////////////////////////////////////////////////////////////////
65 // This class contains the basic functions for the Time Of Flight //
66 // detector. Functions specific to one particular geometry are //
67 // contained in the derived classes //
69 // VERSIONE WITH 5 SYMMETRIC MODULES ALONG Z AXIS
70 // ==============================================
72 // VERSION WITH HOLES FOR PHOS AND TRD IN SPACEFRAME WITH HOLES
74 // Volume sensibile : FPAD
80 <img src="picts/AliTOFClass.gif">
86 ///////////////////////////////////////////////////////////////////////////////
89 #include <strstream.h>
92 #include "AliTOFhit.h"
93 #include "AliTOFdigit.h"
94 #include "AliTOFRawSector.h"
95 #include "AliTOFRoc.h"
96 #include "AliTOFRawDigit.h"
111 #include "AliConst.h"
116 //_____________________________________________________________________________
120 // Default constructor
129 //_____________________________________________________________________________
130 AliTOF::AliTOF(const char *name, const char *title)
131 : AliDetector(name,title)
134 // AliTOF standard constructor
136 // Here are fixed some important parameters
139 // Initialization of hits, sdigits and digits array
141 fHits = new TClonesArray("AliTOFhit", 405);
142 gAlice->AddHitList(fHits);
145 fSDigits = new TClonesArray("AliTOFdigit", 405);
147 fDigits = new TClonesArray("AliTOFdigit", 405);
151 // Digitization parameters
153 // (Transfer Functions to be inserted here)
159 // General Geometrical Parameters
160 fNTof = 18; // number of sectors
163 fZlenC = 177.5;//cm length of module C
164 fZlenB = 141.0;//cm length of module B
165 fZlenA = 106.0;//cm length of module A
166 fZtof = 370.5;//cm total semi-length of TOF detector
169 fStripLn = 122.0;//cm Strip Length
170 fSpace = 5.5;//cm Space Beetween the strip and the bottom of the plate
171 fDeadBndZ= 1.5;//cm Dead Boundaries of a Strip along Z direction (width)
172 fDeadBndX= 1.0;//cm Dead Boundaries of a Strip along X direction (length)
173 fXpad = 2.5;//cm X size of a pad
174 fZpad = 3.5;//cm Z size of a pad
175 fGapA = 4.; //cm Gap beetween tilted strip in A-type plate
176 fGapB = 6.; //cm Gap beetween tilted strip in B-type plate
177 fOverSpc = 15.3;//cm Space available for sensitive layers in radial direction
178 fNpadX = 48; // Number of pads in a strip along the X direction
179 fNpadZ = 2; // Number of pads in a strip along the Z direction
180 fPadXStr = fNpadX*fNpadZ; //Number of pads per strip
181 fNStripA = 15; // number of strips in A type module
182 fNStripB = 19; // number of strips in B type module
183 fNStripC = 20; // number of strips in C type module
185 // Physical performances
189 // DAQ characteristics
190 // cfr. TOF-TDR pag. 105 for Glossary
191 // TARODA : TOF-ALICE Read Out and Data Acquisition system
192 fPadXSector = 8928; // number of pad per sector -with no holes-
193 // ((15+2*19+2*20)*(48*2))
194 fNRoc = 14; // number of Roc (Read Out Controller) (TARODA)
195 fNFec = 32; // number of Fec (Front-End electronic Card)
197 fNTdc = 32; // number of Tdc (Time to Digital Converter)
198 fNPadXRoc = (Int_t)fPadXSector/fNRoc; // number of pads for each ROC
200 // Create TOF Folder Structure
204 //_____________________________________________________________________________
205 void AliTOF::CreateTOFFolders()
207 // create the ALICE TFolder
208 // create the ALICE TTasks
209 // create the ALICE main TFolder
210 // to be done by AliRun
212 TFolder * alice = new TFolder();
213 alice->SetNameTitle("FPAlice", "Alice Folder") ;
214 gROOT->GetListOfBrowsables()->Add(alice) ;
216 TFolder * aliceF = alice->AddFolder("folders", "Alice memory Folder") ;
217 // make it the owner of the objects that it contains
220 TFolder * geomF = aliceF->AddFolder("Geometry", "Geometry objects") ;
221 TFolder * aliceT = alice->AddFolder("tasks", "Alice tasks Folder") ;
222 // make it the owner of the objects that it contains
225 TTask * aliceDi = new TTask("(S)Digitizer", "Alice SDigitizer & Digitizer") ;
226 aliceT->Add(aliceDi);
228 TTask * aliceRe = new TTask("Reconstructioner", "Alice Reconstructioner") ;
229 aliceT->Add(aliceRe);
231 char * tempo = new char[80] ;
233 // creates the TOF Digitizer and adds it to alice main (S)Digitizer task
234 sprintf(tempo, "%sDigitizers container",GetName() ) ;
235 fDTask = new TTask(GetName(), tempo);
236 aliceDi->Add(fDTask) ;
238 // creates the TOF reconstructioner and adds it to alice main Reconstructioner task
239 sprintf(tempo, "%sReconstructioner container",GetName() ) ;
240 fReTask = new TTask(GetName(), tempo);
241 aliceRe->Add(fReTask) ;
245 // creates the TOF geometry folder
246 geomF->AddFolder("TOF", "Geometry for TOF") ;
249 //_____________________________________________________________________________
252 // remove the alice folder
253 // and task that TOF creates instead of AliRun
254 TFolder * alice = (TFolder*)gROOT->GetListOfBrowsables()->FindObject("FPAlice") ;
259 //_____________________________________________________________________________
260 void AliTOF::AddHit(Int_t track, Int_t *vol, Float_t *hits)
264 // new with placement used
266 TClonesArray &lhits = *fHits;
267 new(lhits[fNhits++]) AliTOFhit(fIshunt, track, vol, hits);
270 //_____________________________________________________________________________
271 void AliTOF::AddDigit(Int_t *tracks, Int_t *vol, Float_t *digits)
275 // new with placement used
277 TClonesArray &ldigits = *fDigits;
278 new (ldigits[fNdigits++]) AliTOFdigit(tracks, vol, digits);
282 //_____________________________________________________________________________
283 void AliTOF::CreateGeometry()
286 // Common geometry code
290 <img src="picts/AliTOFv23.gif">
294 const Double_t kPi=TMath::Pi();
295 const Double_t kDegrad=kPi/180.;
297 Float_t xTof, yTof, wall;
299 // frame inbetween TOF modules
302 // Sizes of TOF module with its support etc..
303 xTof = 2.*(fRmin*TMath::Tan(10*kDegrad)-wall/2-.5);
306 // TOF module internal definitions
307 TOFpc(xTof, yTof, fZlenC, fZlenB, fZlenA, fZtof);
310 //_____________________________________________________________________________
311 void AliTOF::DrawModule() const
314 // Draw a shaded view of the common part of the TOF geometry
317 cout << " Drawing of AliTOF"<< endl;
318 // Set everything unseen
319 gMC->Gsatt("*", "seen", -1);
321 // Set ALIC mother transparent
322 gMC->Gsatt("ALIC","SEEN",0);
324 // Set the volumes visible
325 gMC->Gsatt("FTOA","SEEN",1);
326 gMC->Gsatt("FTOB","SEEN",1);
327 gMC->Gsatt("FTOC","SEEN",1);
328 gMC->Gsatt("FLTA","SEEN",1);
329 gMC->Gsatt("FLTB","SEEN",1);
330 gMC->Gsatt("FLTC","SEEN",1);
331 gMC->Gsatt("FSTR","SEEN",1);
333 gMC->Gdopt("hide", "on");
334 gMC->Gdopt("shad", "on");
335 gMC->Gsatt("*", "fill", 7);
336 gMC->SetClipBox(".");
337 gMC->SetClipBox("*", 0, 1000, -1000, 1000, -1000, 1000);
339 gMC->Gdraw("alic", 40, 30, 0, 12, 9.5, .02, .02);
340 gMC->Gdhead(1111, "Time Of Flight");
341 gMC->Gdman(18, 4, "MAN");
342 gMC->Gdopt("hide","off");
345 //_____________________________________________________________________________
346 void AliTOF::CreateMaterials()
349 // Defines TOF materials for all versions
350 // Authors : Maxim Martemianov, Boris Zagreev (ITEP)
352 // Revision: F. Pierella 5-3-2001
353 // Bologna University
355 Int_t isxfld = gAlice->Field()->Integ();
356 Float_t sxmgmx = gAlice->Field()->Max();
359 Float_t aq[2] = { 28.0855,15.9994 };
360 Float_t zq[2] = { 14.,8. };
361 Float_t wq[2] = { 1.,2. };
364 // --- Freon C2F4H2 (TOF-TDR pagg.)
365 // Geant Manual CONS110-1, pag. 43 (Geant, Detector Description and Simulation Tool)
366 Float_t afre[3] = {12.011,18.998,1.007};
367 Float_t zfre[3] = { 6., 9., 1.};
368 Float_t wfre[3] = { 2., 4., 2.};
369 Float_t densfre = 0.00375;
370 // http://www.fi.infn.it/sezione/prevprot/gas/freon.html
373 //-- Isobutane quencher C4H10 (5% in the sensitive mixture)
374 Float_t aiso[2] = {12.011,1.007};
375 Float_t ziso[2] = { 6., 1.};
376 Float_t wiso[2] = { 4., 10.};
377 Float_t densiso = .......; // (g/cm3) density
378 Int_t nfre = -2; // < 0 i.e. proportion by number of atoms of each kind
379 //-- SF6 (5% in the sensitive mixture)
380 Float_t asf[3] = {32.066,18.998};
381 Float_t zsf[3] = { 16., 9.};
382 Float_t wsf[3] = { 1., 6.};
383 Float_t denssf = .....; // (g/cm3) density
384 Int_t nfre = -2; // < 0 i.e. proportion by number of atoms of each kind
387 Float_t ac[2] = {12.,16.};
388 Float_t zc[2] = { 6., 8.};
389 Float_t wc[2] = { 1., 2.};
390 Float_t dc = .001977;
392 // For mylar (C5H4O2)
393 Float_t amy[3] = { 12., 1., 16. };
394 Float_t zmy[3] = { 6., 1., 8. };
395 Float_t wmy[3] = { 5., 4., 2. };
398 // For polyethilene (CH2) - honeycomb -
399 Float_t ape[2] = { 12., 1. };
400 Float_t zpe[2] = { 6., 1. };
401 Float_t wpe[2] = { 1., 2. };
402 Float_t dpe = 0.935*0.479; //To have 1%X0 for 1cm as for honeycomb
405 Float_t ag10[4] = { 12.,1.,16.,28. };
406 Float_t zg10[4] = { 6.,1., 8.,14. };
407 Float_t wmatg10[4] = { .259,.288,.248,.205 };
408 Float_t densg10 = 1.7;
411 Float_t adme[5] = { 12.,1.,16.,19.,79. };
412 Float_t zdme[5] = { 6.,1., 8., 9.,35. };
413 Float_t wmatdme[5] = { .4056,.0961,.2562,.1014,.1407 };
414 Float_t densdme = .00205;
416 // ---- ALUMINA (AL203)
417 Float_t aal[2] = { 27.,16.};
418 Float_t zal[2] = { 13., 8.};
419 Float_t wmatal[2] = { 2.,3. };
420 Float_t densal = 2.3;
423 Float_t awa[2] = { 1., 16. };
424 Float_t zwa[2] = { 1., 8. };
425 Float_t wwa[2] = { 2., 1. };
429 //AliMaterial(0, "Vacuum$", 1e-16, 1e-16, 1e-16, 1e16, 1e16);
430 AliMaterial( 1, "Air$",14.61,7.3,0.001205,30423.24,67500.);
431 AliMaterial( 2, "Cu $", 63.54, 29.0, 8.96, 1.43, 14.8);
432 AliMaterial( 3, "C $", 12.01, 6.0, 2.265,18.8, 74.4);
433 AliMixture ( 4, "Polyethilene$", ape, zpe, dpe, npe, wpe);
434 AliMixture ( 5, "G10$", ag10, zg10, densg10, nlmatg10, wmatg10);
435 AliMixture ( 6, "DME ", adme, zdme, densdme, nlmatdme, wmatdme);
436 AliMixture ( 7, "CO2$", ac, zc, dc, nc, wc);
437 AliMixture ( 8, "ALUMINA$", aal, zal, densal, nlmatal, wmatal);
438 AliMaterial( 9, "Al $", 26.98, 13., 2.7, 8.9, 37.2);
439 AliMaterial(10, "C-TRD$", 12.01, 6., 2.265*18.8/69.282*15./100, 18.8, 74.4); // for 15%
440 AliMixture (11, "Mylar$", amy, zmy, dmy, nmy, wmy);
441 AliMixture (12, "Freon$", afre, zfre, densfre, nfre, wfre);
442 AliMixture (13, "Quartz$", aq, zq, dq, nq, wq);
443 AliMixture (14, "Water$", awa, zwa, dwa, nwa, wwa);
445 Float_t epsil, stmin, deemax, stemax;
448 // EPSIL = 0.1 ! Tracking precision,
449 // STEMAX = 0.1 ! Maximum displacement for multiple scattering
450 // DEEMAX = 0.1 ! Maximum fractional energy loss, DLS
454 epsil = .001; // Tracking precision,
455 stemax = -1.; // Maximum displacement for multiple scattering
456 deemax = -.3; // Maximum fractional energy loss, DLS
459 AliMedium( 1, "Air$" , 1, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
460 AliMedium( 2, "Cu $" , 2, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
461 AliMedium( 3, "C $" , 3, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
462 AliMedium( 4, "Pol$" , 4, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
463 AliMedium( 5, "G10$" , 5, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
464 AliMedium( 6, "DME$" , 6, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
465 AliMedium( 7, "CO2$" , 7, 0, isxfld, sxmgmx, 10., -.01, -.1, .01, -.01);
466 AliMedium( 8,"ALUMINA$", 8, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
467 AliMedium( 9,"Al Frame$",9, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
468 AliMedium(10, "DME-S$", 6, 1, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
469 AliMedium(11, "C-TRD$", 10, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
470 AliMedium(12, "Myl$" , 11, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
471 AliMedium(13, "Fre$" , 12, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
472 AliMedium(14, "Fre-S$", 12, 1, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
473 AliMedium(15, "Glass$", 13, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
474 AliMedium(16, "Water$", 14, 0, isxfld, sxmgmx, 10., stemax, deemax, epsil, stmin);
477 //_____________________________________________________________________________
478 Int_t AliTOF::DistancetoPrimitive(Int_t , Int_t ) const
481 // Returns distance from mouse pointer to detector, default version
486 //_____________________________________________________________________________
490 // Initialise TOF detector after it has been built
492 // Set id of TOF sensitive volume
493 if (IsVersion() !=0) fIdSens=gMC->VolId("FPAD");
497 //____________________________________________________________________________
498 void AliTOF::MakeBranch(Option_t* option, const char *file)
501 // Initializes the Branches of the TOF inside the
502 // trees written for each event.
503 // AliDetector::MakeBranch initializes just the
504 // Branch inside TreeH. Here we add the branches in
507 AliDetector::MakeBranch(option,file);
509 Int_t buffersize = 4000;
510 Char_t branchname[10];
511 sprintf(branchname,"%s",GetName());
513 const char *oD = strstr(option,"D");
514 const char *oS = strstr(option,"S");
518 // one branch for TOF digits
522 if (fDigits && gAlice->TreeD() && oD){
523 MakeBranchInTree(gAlice->TreeD(),
524 branchname, &fDigits,buffersize, file) ;
529 // one branch for TOF sdigits
533 if (fSDigits && gAlice->TreeS() && oS){
534 MakeBranchInTree(gAlice->TreeS(),
535 branchname, &fSDigits,buffersize, file) ;
540 //____________________________________________________________________________
541 void AliTOF::Makehits(Bool_t hits)
543 // default argument used, see AliTOF.h
544 // Enable/Disable the writing of the TOF-hits branch
546 // by default : enabled for TOFv1, v2, v3, v4
547 // disabled for TOFv0
549 if (hits && (IsVersion()!=0))
550 fIdSens = gMC->VolId("FPAD");
552 cout << "Option for writing the TOF-hits branch on TreeH: disabled" << endl;
555 //____________________________________________________________________________
556 void AliTOF::FinishEvent()
561 //___________________________________________
562 void AliTOF::SDigits2Digits()
567 int nparticles = gAlice->GetNtrack();
568 cout << "Particles :" <<nparticles<<endl;
569 if (nparticles > 0 ) {
570 AliTOF::Hits2Digits();
574 //____________________________________________________________________________
575 void AliTOF::Hits2Digits()
578 // Starting from the Hits Tree (TreeH), this
579 // function writes the TOF Digits Branch in the Tree (TreeD) storing
580 // the digits informations.
581 // It has to be called just at the end of an event or
582 // at the end of a whole run.
583 // It could also be called by AliTOF::Finish Event()
584 // Just for MC events.
586 // Called by the ROOT script Hits2Digits.C
588 // Simulation of detector response.
590 Int_t ver = this->IsVersion();
591 if(ver==0) return; // no digits for AliTOFv0
593 Int_t nhits = 0; // total number of hits for the current track
594 Int_t evNumber = 0; // evnumber
595 Int_t tracks[3]; // track info
596 Int_t vol[5]; // dummy location for digit
597 Float_t digit[2]; // TOF digit variables
599 TRandom* rnd = new TRandom();
602 // Get pointers to Alice detectors and Hits containers
603 AliDetector* TOF = gAlice->GetDetector("TOF");
606 TTree* tD = gAlice->TreeD();
608 TTree* tH = gAlice->TreeH(); // pointer to the hits tree
609 Stat_t ntracks = tH->GetEntries();
611 cout << "Total number of processed tracks in event " << gAlice->GetEvNumber() <<
612 " :" << ntracks << endl;
614 // do nothing if no tracked particles
618 // ptr to the current TOF hit
621 // Start loop on tracks in the hits containers
622 // check for the total number of processed hits
628 for (Int_t track=0; track<ntracks;track++) {
630 // loop on all hits for the current track
632 for(tofHit=(AliTOFhit*)TOF->FirstHit(track); tofHit; tofHit=(AliTOFhit*)TOF->NextHit()) {
636 vol[0] = tofHit->GetSector();
637 vol[1] = tofHit->GetPlate();
638 vol[2] = tofHit->GetPadx();
639 vol[3] = tofHit->GetPadz();
640 vol[4] = tofHit->GetStrip();
642 // 95% of efficiency to be inserted here
643 // edge effect to be inserted here
644 // cross talk to be inserted here
646 Float_t idealtime = tofHit->GetTof(); // unit s
647 idealtime *= 1.E+12; // conversion from s to ps
648 // fTimeRes is given usually in ps
649 Float_t tdctime = rnd->Gaus(idealtime, fTimeRes);
652 // typical Landau Distribution to be inserted here
653 // instead of Gaussian Distribution
654 Float_t idealcharge = tofHit->GetEdep();
655 Float_t adccharge = rnd->Gaus(idealcharge, fChrgRes);
656 digit[1] = adccharge;
657 Int_t tracknum = tofHit -> GetTrack();
658 tracks[0] = tracknum;
662 Bool_t overlap = CheckOverlap(vol, digit, tracknum);
664 AddDigit(tracks, vol, digit);
666 } // end loop on hits for the current track
668 } // end loop on ntracks
670 // some statistics concerning digitization
671 cout << "Total number of processed TOF hits: " << totnhits << endl;
672 cout << "Total number of created TOF digits: " << totndigits << endl;
674 } // close if TOF switched ON
676 } // close if( ntracks > 0)
678 // free used memory for TRandom object
682 // fill and write the branch
684 evNumber = gAlice->GetEvNumber();
686 sprintf(hname,"TreeD%d",evNumber);
690 tD->Write(hname,TObject::kOverwrite);
693 gAlice->TreeD()->Reset();
696 //___________________________________________________________________________
697 Bool_t AliTOF::CheckOverlap(Int_t* vol, Float_t* digit,Int_t Track)
700 // Checks if 2 or more hits belong to the same pad.
701 // In this case the data assigned to the digit object
702 // are the ones of the first hit in order of Time.
704 // Called only by Hits2Digits.
710 for (Int_t ndig=0; ndig<fNdigits; ndig++){
711 AliTOFdigit* currentDigit = (AliTOFdigit*)(fDigits->UncheckedAt(ndig));
712 currentDigit->GetLocation(vol2);
714 for (Int_t i=0;i<=4;i++){
715 if (vol[i]!=vol2[i]) idem=0;}
717 Float_t tdc2 = digit[0];
718 Float_t tdc1 = currentDigit->GetTdc();
720 currentDigit->SetTdc(tdc2);
721 currentDigit->SetAdc(digit[1]);
723 currentDigit->AddTrack(Track);
731 //____________________________________________________________________________
732 void AliTOF::Digits2Raw(Int_t evNumber)
735 // Starting from digits, writes the
736 // Raw Data objects, i.e. a
737 // TClonesArray of 18 AliTOFRawSector objects
742 // do nothing if no particles
743 Int_t nparticles = gAlice->GetEvent(evNumber);
744 if (nparticles <= 0) return;
746 tD = gAlice->TreeD();
748 TClonesArray* tofdigits = this->Digits();
749 Int_t ndigits = tofdigits->GetEntriesFast();
751 TClonesArray* rawsectors = new TClonesArray("AliTOFRawSector",fNTof+2);
753 for (Int_t isect=1;isect<=fNTof;isect++){
754 AliTOFRawSector* currentSector = (AliTOFRawSector*)rawsectors->UncheckedAt(isect);
755 TClonesArray* rocData = (TClonesArray*)currentSector->GetRocData();
757 for (Int_t digit=0; digit<ndigits; digit++){
758 AliTOFdigit* currentDigit = (AliTOFdigit*)tofdigits->UncheckedAt(digit);
759 Int_t sector = currentDigit->GetSector();
761 Int_t pad = currentDigit -> GetTotPad();
762 Int_t roc = (Int_t)(pad/fNPadXRoc)-1;
763 if (roc>=fNRoc) printf("Wrong n. of ROC ! Roc = %i",roc);
764 Int_t padRoc = (Int_t) pad%fNPadXRoc;
765 Int_t fec = (Int_t)(padRoc/fNFec)-1;
766 Int_t tdc = (Int_t)(padRoc%fNFec)-1;
767 Float_t time = currentDigit->GetTdc();
768 Float_t charge = currentDigit->GetAdc();
769 AliTOFRoc* currentROC = (AliTOFRoc*)rocData->UncheckedAt(roc);
771 currentROC->AddItem(fec, tdc, error, charge, time);
772 } // close if (sector==isect) i.e. end loop on digits for the current sector
773 } // end loop on TOF digits
775 UInt_t totSize=16,rocSize=0;
776 UInt_t rocHead[14],rocChek[14];
777 UInt_t globalCheckSum=0;
779 for (UInt_t iRoc = 1; iRoc<(UInt_t)fNRoc; iRoc++){
780 AliTOFRoc* currentRoc = (AliTOFRoc*)rocData->UncheckedAt(iRoc);
781 rocSize = currentRoc->GetItems()*2+1;
782 totSize += rocSize*4;
783 if (rocSize>=TMath::Power(2,16)) rocSize=0;
784 rocHead[iRoc] = iRoc<<28;
785 rocHead[iRoc] += rocSize;
786 rocChek[iRoc] = currentRoc->GetCheckSum();
787 Int_t headCheck = currentRoc->BitCount(rocHead[iRoc]);
788 globalCheckSum += headCheck;
789 globalCheckSum += rocChek[iRoc];
792 AliTOFRoc* dummyRoc = new AliTOFRoc();
794 if (totSize>=TMath::Power(2,24)) totSize=0;
795 UInt_t header = totSize;
796 UInt_t sectId = ((UInt_t)isect)<<24;
798 globalCheckSum += dummyRoc->BitCount(header);
799 currentSector->SetGlobalCS(globalCheckSum);
800 currentSector->SetHeader(header);
804 //____________________________________________________________________________
805 void AliTOF::Raw2Digits(Int_t evNumber)
808 // Converts Raw Data objects into digits objects.
809 // We schematize the raw data with a
810 // TClonesArray of 18 AliTOFRawSector objects
822 Int_t nparticles = gAlice->GetEvent(evNumber);
823 if (nparticles <= 0) return;
825 tD = gAlice->TreeD();
827 TClonesArray* rawsectors = new TClonesArray("AliTOFRawSector",fNTof+2);
829 for(Int_t nSec=1; nSec<=fNTof; nSec++){
830 AliTOFRawSector* currentSector = (AliTOFRawSector*)rawsectors->UncheckedAt(nSec);
831 TClonesArray* rocData = (TClonesArray*)currentSector->GetRocData();
832 for(Int_t nRoc=1; nRoc<=14; nRoc++){
833 AliTOFRoc* currentRoc = (AliTOFRoc*)rocData->UncheckedAt(nRoc);
834 Int_t currentItems = currentRoc->GetItems();
835 for(Int_t item=1; item<currentItems; item++){
836 Int_t nPad = currentRoc->GetTotPad(item);
838 Int_t nStrip = (Int_t)(nPad/fPadXStr)+1;
840 if (nStrip<=fNStripC+2*fNStripB+fNStripA) nPlate = 4;
841 if (nStrip<=fNStripC+fNStripB+fNStripA) nPlate = 3;
842 if (nStrip<=fNStripC+fNStripB) nPlate = 2;
843 if (nStrip<=fNStripC) nPlate=1;
847 case 2: nStrip -= (fNStripC);
849 case 3: nStrip -= (fNStripC+fNStripB);
851 case 4: nStrip -= (fNStripC+fNStripB+fNStripA);
853 case 5: nStrip -= (fNStripC+2*fNStripB+fNStripA);
857 Int_t pad = nPad%fPadXStr;
858 if (pad==0) pad=fPadXStr;
859 Int_t nPadX=0, nPadZ=0;
860 (pad>fNpadX)? nPadX -= fNpadX : nPadX = pad ;
862 (pad>fNpadX)? nPadZ = 2 : nPadZ = 1 ;
865 Float_t tdc = currentRoc->GetTime(item,error);
866 if (!error) digit[0]=tdc;
867 digit[1] = currentRoc->GetCharge(item);
868 AddDigit(tracks,vol,digit);
873 tD->Write(0,TObject::kOverwrite);