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4 * Author: The ALICE Off-line Project. *
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17 @author Christian Holm Christensen <cholm@nbi.dk>
18 @date Sun Mar 26 17:59:18 2006
19 @brief Implementation of AliFMD base class
21 //____________________________________________________________________
23 // Forward Multiplicity Detector based on Silicon wafers. This class
24 // is the driver for especially simulation.
26 // The Forward Multiplicity Detector consists of 3 sub-detectors FMD1,
27 // FMD2, and FMD3, each of which has 1 or 2 rings of silicon sensors.
29 // This is the base class for all FMD manager classes.
31 // The actual code is done by various separate classes. Below is
32 // diagram showing the relationship between the various FMD classes
33 // that handles the simulation
36 // +----------+ +----------+
37 // | AliFMDv1 | | AliFMDv0 |
38 // +----------+ +----------+
39 // | | +-----------------+
40 // +----+--------------+ +--| AliFMDDigitizer |
41 // | | +-----------------+
42 // | +---------------------+ |
43 // | +--| AliFMDBaseDigitizer |<--+
44 // V 1 | +---------------------+ |
45 // +--------+<>--+ | +------------------+
46 // | AliFMD | +--| AliFMDSDigitizer |
47 // +--------+<>--+ +------------------+
48 // 1 | +---------------------+
49 // +--| AliFMDReconstructor |
50 // +---------------------+
53 // This defines the interface for the various parts of AliROOT that
54 // uses the FMD, like AliFMDSimulator, AliFMDDigitizer,
55 // AliFMDReconstructor, and so on.
58 // This is a concrete implementation of the AliFMD interface.
59 // It is the responsibility of this class to create the FMD
63 // This is a concrete implementation of the AliFMD interface.
64 // It is the responsibility of this class to create the FMD
65 // geometry, process hits in the FMD, and serve hits and digits to
66 // the various clients.
69 // This is the base class for the FMD simulation tasks. The
70 // simulator tasks are responsible to implment the geoemtry, and
73 // * AliFMDReconstructor
74 // This is a concrete implementation of the AliReconstructor that
75 // reconstructs pseudo-inclusive-multiplicities from digits (raw or
78 // Calibration and geometry parameters are managed by separate
79 // singleton managers. These are AliFMDGeometry and
80 // AliFMDParameters. Please refer to these classes for more
81 // information on these.
84 // These files are not in the same directory, so there's no reason to
85 // ask the preprocessor to search in the current directory for these
86 // files by including them with `#include "..."'
87 #include <TBrowser.h> // ROOT_TBrowser
88 #include <TClonesArray.h> // ROOT_TClonesArray
89 #include <TGeoGlobalMagField.h> // ROOT_TGeoGlobalMagField
90 #include <TGeoManager.h> // ROOT_TGeoManager
91 #include <TRotMatrix.h> // ROOT_TRotMatrix
92 #include <TTree.h> // ROOT_TTree
93 #include <TVector2.h> // ROOT_TVector2
94 #include <TVirtualMC.h> // ROOT_TVirtualMC
95 #include <cmath> // __CMATH__
97 #include <AliDigitizationInput.h> // ALIRUNDIGITIZER_H
98 #include <AliLoader.h> // ALILOADER_H
99 #include <AliRun.h> // ALIRUN_H
100 #include <AliMC.h> // ALIMC_H
101 #include <AliMagF.h> // ALIMAGF_H
102 // #include <AliLog.h> // ALILOG_H
103 #include "AliFMDDebug.h" // Better debug macros
104 #include "AliFMD.h" // ALIFMD_H
105 #include "AliFMDDigit.h" // ALIFMDDIGIT_H
106 #include "AliFMDSDigit.h" // ALIFMDSDIGIT_H
107 #include "AliFMDHit.h" // ALIFMDHIT_H
108 #include "AliFMDGeometry.h" // ALIFMDGEOMETRY_H
109 #include "AliFMDDetector.h" // ALIFMDDETECTOR_H
110 #include "AliFMDRing.h" // ALIFMDRING_H
111 #include "AliFMDDigitizer.h" // ALIFMDDIGITIZER_H
112 #include "AliFMDHitDigitizer.h" // ALIFMDSDIGITIZER_H
113 // #define USE_SSDIGITIZER
114 //#ifdef USE_SSDIGITIZER
115 //# include "AliFMDSSDigitizer.h" // ALIFMDSDIGITIZER_H
117 // #include "AliFMDGeometryBuilder.h"
118 #include "AliFMDRawWriter.h" // ALIFMDRAWWRITER_H
119 #include "AliFMDRawReader.h" // ALIFMDRAWREADER_H
120 #include "AliTrackReference.h"
121 #include "AliFMDStripIndex.h"
122 #include "AliFMDEncodedEdx.h"
123 #include "AliFMDParameters.h"
124 #include "AliFMDReconstructor.h"
126 //____________________________________________________________________
129 ; // This is to keep Emacs from indenting the next line
132 //____________________________________________________________________
143 // Default constructor for class AliFMD
145 AliFMDDebug(10, ("\tDefault CTOR"));
149 // fBad = new TClonesArray("AliFMDHit");
152 //____________________________________________________________________
153 AliFMD::AliFMD(const char *name, const char *title)
154 : AliDetector (name, title),
159 fUseAssembly(kFALSE),
163 // Standard constructor for Forward Multiplicity Detector
165 AliFMDDebug(10, ("\tStandard CTOR"));
166 // fBad = new TClonesArray("AliFMDHit");
168 // Initialise Hit array
170 // gAlice->GetMCApp()->AddHitList(fHits);
172 // (S)Digits for the detectors disk
176 // CHC: What is this?
178 //PH SetMarkerColor(kRed);
179 //PH SetLineColor(kYellow);
182 //____________________________________________________________________
185 // Destructor for base class AliFMD
209 //====================================================================
211 // GEometry ANd Traking
213 //____________________________________________________________________
215 AliFMD::CreateGeometry()
218 // Create the geometry of Forward Multiplicity Detector. The actual
219 // construction of the geometry is delegated to the class
220 // AliFMDGeometryBuilder, invoked by the singleton manager
223 AliFMDGeometry* fmd = AliFMDGeometry::Instance();
224 fmd->SetDetailed(fDetailed);
225 fmd->UseAssembly(fUseAssembly);
229 //____________________________________________________________________
230 void AliFMD::CreateMaterials()
232 // Define the materials and tracking mediums needed by the FMD
233 // simulation. These mediums are made by sending the messages
234 // AliMaterial, AliMixture, and AliMedium to the passed AliModule
235 // object module. The defined mediums are
237 // FMD Si$ Silicon (active medium in sensors)
238 // FMD C$ Carbon fibre (support cone for FMD3 and vacuum pipe)
239 // FMD Al$ Aluminium (honeycomb support plates)
240 // FMD PCB$ Printed Circuit Board (FEE board with VA1_3)
241 // FMD Chip$ Electronics chips (currently not used)
242 // FMD Air$ Air (Air in the FMD)
243 // FMD Plastic$ Plastic (Support legs for the hybrid cards)
245 // The geometry builder should really be the one that creates the
246 // materials, but the architecture of AliROOT makes that design
247 // akward. What should happen, was that the AliFMDGeometryBuilder
248 // made the mediums, and that this class retrives pointers from the
249 // TGeoManager, and registers the mediums here. Alas, it's not
252 AliFMDDebug(10, ("\tCreating materials"));
253 // Get pointer to geometry singleton object.
254 AliFMDGeometry* geometry = AliFMDGeometry::Instance();
257 if (gGeoManager && gGeoManager->GetMedium("FMD Si$")) {
258 // We need to figure out the some stuff about the geometry
259 fmd->ExtractGeomInfo();
266 Double_t density = 0;
267 Double_t radiationLength = 0;
268 Double_t absorbtionLength = 999;
269 Int_t fieldType = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Integ(); // Field type
270 Double_t maxField = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Max(); // Field max.
271 Double_t maxBending = 0; // Max Angle
272 Double_t maxStepSize = 0.001; // Max step size
273 Double_t maxEnergyLoss = 1; // Max Delta E
274 Double_t precision = 0.001; // Precision
275 Double_t minStepSize = 0.001; // Minimum step size
280 density = geometry->GetSiDensity();
281 radiationLength = 9.36;
287 AliMaterial(id, "Si$", a, z, density, radiationLength, absorbtionLength);
288 AliMedium(kSiId, "Si$", id,1,fieldType,maxField,maxBending,
289 maxStepSize,maxEnergyLoss,precision,minStepSize);
296 radiationLength = 18.8;
302 AliMaterial(id, "Carbon$", a, z, density, radiationLength, absorbtionLength);
303 AliMedium(kCarbonId, "Carbon$", id,0,fieldType,maxField,maxBending,
304 maxStepSize,maxEnergyLoss,precision,minStepSize);
310 radiationLength = 8.9;
312 AliMaterial(id, "Aluminum$",a,z, density, radiationLength, absorbtionLength);
313 AliMedium(kAlId, "Aluminum$", id, 0, fieldType, maxField, maxBending,
314 maxStepSize, maxEnergyLoss, precision, minStepSize);
321 radiationLength = 1.43;
323 AliMaterial(id, "Copper$",
324 a, z, density, radiationLength, absorbtionLength);
325 AliMedium(kCopperId, "Copper$", id, 0, fieldType, maxField, maxBending,
326 maxStepSize, maxEnergyLoss, precision, minStepSize);
331 Float_t as[] = { 12.0107, 14.0067, 15.9994,
332 1.00794, 28.0855, 107.8682 };
333 Float_t zs[] = { 6., 7., 8.,
335 Float_t ws[] = { 0.039730642, 0.001396798, 0.01169634,
336 0.004367771, 0.844665, 0.09814344903 };
343 AliMixture(id, "Si Chip$", as, zs, density, 6, ws);
344 AliMedium(kSiChipId, "Si Chip$", id, 0, fieldType, maxField, maxBending,
345 maxStepSize, maxEnergyLoss, precision, minStepSize);
350 Float_t as[] = { 1.00794, 12.0107, 14.010, 15.9994};
351 Float_t zs[] = { 1., 6., 7., 8.};
352 Float_t ws[] = { 0.026362, 0.69113, 0.07327, 0.209235};
359 AliMixture(id, "Kaption$", as, zs, density, 4, ws);
360 AliMedium(kKaptonId, "Kaption$", id,0,fieldType,maxField,maxBending,
361 maxStepSize,maxEnergyLoss,precision,minStepSize);
366 Float_t as[] = { 12.0107, 14.0067, 15.9994, 39.948 };
367 Float_t zs[] = { 6., 7., 8., 18. };
368 Float_t ws[] = { 0.000124, 0.755267, 0.231781, 0.012827 };
375 AliMixture(id, "Air$", as, zs, density, 4, ws);
376 AliMedium(kAirId, "Air$", id,0,fieldType,maxField,maxBending,
377 maxStepSize,maxEnergyLoss,precision,minStepSize);
382 Float_t zs[] = { 14., 20., 13., 12.,
386 Float_t as[] = { 28.0855, 40.078, 26.981538, 24.305,
387 10.811, 47.867, 22.98977, 39.0983,
388 55.845, 18.9984, 15.9994, 12.0107,
390 Float_t ws[] = { 0.15144894, 0.08147477, 0.04128158, 0.00904554,
391 0.01397570, 0.00287685, 0.00445114, 0.00498089,
392 0.00209828, 0.00420000, 0.36043788, 0.27529426,
393 0.01415852, 0.03427566};
400 AliMixture(id, "PCB$", as, zs, density, 14, ws);
401 AliMedium(kPcbId, "PCB$", id,0,fieldType,maxField,maxBending,
402 maxStepSize,maxEnergyLoss,precision,minStepSize);
407 Float_t as[] = { 55.847, 51.9961, 58.6934, 28.0855 };
408 Float_t zs[] = { 26., 24., 28., 14. };
409 Float_t ws[] = { .715, .18, .1, .005 };
412 AliMixture(id, "Steel$", as, zs, density, 4, ws);
413 AliMedium(kSteelId, "Steel$", id, 0, fieldType, maxField, maxBending,
414 maxStepSize, maxEnergyLoss, precision, minStepSize);
418 Float_t as[] = { 1.01, 12.01 };
419 Float_t zs[] = { 1., 6. };
420 Float_t ws[] = { 1., 1. };
427 AliMixture(id, "Plastic$", as, zs, density, -2, ws);
428 AliMedium(kPlasticId, "Plastic$", id,0,fieldType,maxField,maxBending,
429 maxStepSize,maxEnergyLoss,precision,minStepSize);
435 //____________________________________________________________________
437 AliFMD::SetTrackingParameters(Int_t imed,
440 Float_t neutral_hadron,
441 Float_t charged_hadron,
443 Float_t electron_bremstrahlung,
444 Float_t muon__bremstrahlung,
445 Float_t electron_delta,
450 Int_t compton_scattering,
455 Int_t multiple_scattering,
456 Int_t pair_production,
457 Int_t photon_production,
458 Int_t rayleigh_scattering)
460 // Disabled by request of FCA, kept for reference only
462 TArrayI& idtmed = *(GetIdtmed());
463 Int_t iimed = idtmed[imed];
464 // gMC->Gstpar(iimed, "CUTGAM", gamma);
465 // gMC->Gstpar(iimed, "CUTELE", electron);
466 // gMC->Gstpar(iimed, "CUTNEU", neutral_hadron);
467 // gMC->Gstpar(iimed, "CUTHAD", charged_hadron);
468 // gMC->Gstpar(iimed, "CUTMUO", muon);
469 // gMC->Gstpar(iimed, "BCUTE", electron_bremstrahlung);
470 // gMC->Gstpar(iimed, "BCUTM", muon__bremstrahlung);
471 // gMC->Gstpar(iimed, "DCUTE", electron_delta);
472 // gMC->Gstpar(iimed, "DCUTM", muon_delta);
473 // gMC->Gstpar(iimed, "PPCUTM", muon_pair);
474 // gMC->Gstpar(iimed, "ANNI", Float_t(annihilation));
475 // gMC->Gstpar(iimed, "BREM", Float_t(bremstrahlung));
476 // gMC->Gstpar(iimed, "COMP", Float_t(compton_scattering));
477 // gMC->Gstpar(iimed, "DCAY", Float_t(decay));
478 // gMC->Gstpar(iimed, "DRAY", Float_t(delta_ray));
479 // gMC->Gstpar(iimed, "HADR", Float_t(hadronic));
480 // gMC->Gstpar(iimed, "LOSS", Float_t(energy_loss));
481 // gMC->Gstpar(iimed, "MULS", Float_t(multiple_scattering));
482 // gMC->Gstpar(iimed, "PAIR", Float_t(pair_production));
483 // gMC->Gstpar(iimed, "PHOT", Float_t(photon_production));
484 // gMC->Gstpar(iimed, "RAYL", Float_t(rayleigh_scattering));
488 //____________________________________________________________________
492 // Initialize the detector
494 AliFMDDebug(1, ("Initialising FMD detector object"));
495 TVirtualMC* mc = TVirtualMC::GetMC();
496 AliFMDGeometry* fmd = AliFMDGeometry::Instance();
497 TArrayI actGeo = fmd->ActiveIds();
499 if (actGeo.fN <= 0) valid = false;
501 for (int i = 0; i < actGeo.fN; i++) {
509 AliFMDDebug(1, ("Extracting geometry info from loaded geometry"));
510 fmd->ExtractGeomInfo();
511 actGeo = fmd->ActiveIds();
513 TArrayI actVmc(actGeo.fN);
514 for (Int_t i = 0; i < actGeo.fN; i++) {
516 AliError(Form("Invalid id: %d", actGeo[i]));
519 TGeoVolume *sens = gGeoManager->GetVolume(actGeo[i]);
521 AliError(Form("No TGeo volume for sensitive volume ID=%d",actGeo[i]));
524 actVmc[i] = mc->VolId(sens->GetName());
525 AliFMDDebug(1, ("Active vol id # %d: %d changed to %d",
526 i, actGeo[i], actVmc[i]));
528 fmd->SetActive(actVmc.fArray, actVmc.fN);
529 // fmd->InitTransformations();
532 //____________________________________________________________________
534 AliFMD::FinishEvent()
536 // Called at the end of the an event in simulations. If the debug
537 // level is high enough, then the `bad' hits are printed.
539 if (AliLog::GetDebugLevel("FMD", "AliFMD") < 10) return;
540 if (fBad && fBad->GetEntries() > 0) {
541 AliWarning(Form("got %d 'bad' hits", fBad->GetEntries()));
544 while ((hit = static_cast<AliFMDHit*>(next()))) hit->Print("D");
551 //====================================================================
553 // Hit and Digit managment
555 //____________________________________________________________________
557 AliFMD::MakeBranch(Option_t * option)
559 // Create Tree branches for the FMD.
563 // H Make a branch of TClonesArray of AliFMDHit's
564 // D Make a branch of TClonesArray of AliFMDDigit's
565 // S Make a branch of TClonesArray of AliFMDSDigit's
567 const Int_t kBufferSize = 16000;
568 TString branchname(GetName());
571 if (opt.Contains("H", TString::kIgnoreCase)) {
573 AliDetector::MakeBranch(option);
575 if (opt.Contains("D", TString::kIgnoreCase)) {
577 MakeBranchInTree(fLoader->TreeD(), branchname.Data(),
578 &fDigits, kBufferSize, 0);
580 if (opt.Contains("S", TString::kIgnoreCase)) {
582 MakeBranchInTree(fLoader->TreeS(), branchname.Data(),
583 &fSDigits, kBufferSize, 0);
587 //____________________________________________________________________
589 AliFMD::SetTreeAddress()
591 // Set branch address for the Hits, Digits, and SDigits Tree.
592 if (fLoader->TreeH()) HitsArray();
593 AliDetector::SetTreeAddress();
595 TTree *treeD = fLoader->TreeD();
598 TBranch* branch = treeD->GetBranch ("FMD");
599 if (branch) branch->SetAddress(&fDigits);
602 TTree *treeS = fLoader->TreeS();
605 TBranch* branch = treeS->GetBranch ("FMD");
606 if (branch) branch->SetAddress(&fSDigits);
610 //____________________________________________________________________
612 AliFMD::SetHitsAddressBranch(TBranch *b)
614 // Set the TClonesArray to read hits into.
615 b->SetAddress(&fHits);
617 //____________________________________________________________________
619 AliFMD::SetSDigitsAddressBranch(TBranch *b)
621 // Set the TClonesArray to read hits into.
622 b->SetAddress(&fSDigits);
625 //____________________________________________________________________
627 AliFMD::AddHit(Int_t track, Int_t *vol, Float_t *hits)
629 // Add a hit to the hits tree
631 // The information of the two arrays are decoded as
635 // ivol[0] [UShort_t ] Detector #
636 // ivol[1] [Char_t ] Ring ID
637 // ivol[2] [UShort_t ] Sector #
638 // ivol[3] [UShort_t ] Strip #
639 // hits[0] [Float_t ] Track's X-coordinate at hit
640 // hits[1] [Float_t ] Track's Y-coordinate at hit
641 // hits[3] [Float_t ] Track's Z-coordinate at hit
642 // hits[4] [Float_t ] X-component of track's momentum
643 // hits[5] [Float_t ] Y-component of track's momentum
644 // hits[6] [Float_t ] Z-component of track's momentum
645 // hits[7] [Float_t ] Energy deposited by track
646 // hits[8] [Int_t ] Track's particle Id #
647 // hits[9] [Float_t ] Time when the track hit
650 AddHitByFields(track,
651 UShort_t(vol[0]), // Detector #
652 Char_t(vol[1]), // Ring ID
653 UShort_t(vol[2]), // Sector #
654 UShort_t(vol[3]), // Strip #
661 hits[6], // Energy loss
662 Int_t(hits[7]), // PDG
666 //____________________________________________________________________
668 AliFMD::AddHitByFields(Int_t track,
685 // Add a hit to the list
690 // detector Detector # (1, 2, or 3)
691 // ring Ring ID ('I' or 'O')
692 // sector Sector # (For inner/outer rings: 0-19/0-39)
693 // strip Strip # (For inner/outer rings: 0-511/0-255)
694 // x Track's X-coordinate at hit
695 // y Track's Y-coordinate at hit
696 // z Track's Z-coordinate at hit
697 // px X-component of track's momentum
698 // py Y-component of track's momentum
699 // pz Z-component of track's momentum
700 // edep Energy deposited by track
701 // pdg Track's particle Id #
702 // t Time when the track hit
703 // l Track length through the material.
704 // stop Whether track was stopped or disappeared
706 TClonesArray& a = *(HitsArray());
707 // Search through the list of already registered hits, and see if we
708 // find a hit with the same parameters. If we do, then don't create
709 // a new hit, but rather update the energy deposited in the hit.
710 // This is done, so that a FLUKA based simulation will get the
711 // number of hits right, not just the enerrgy deposition.
713 for (Int_t i = 0; i < fNhits; i++) {
714 if (!a.At(i)) continue;
715 hit = static_cast<AliFMDHit*>(a.At(i));
716 if (hit->Detector() == detector
717 && hit->Ring() == ring
718 && hit->Sector() == sector
719 && hit->Strip() == strip
720 && hit->Track() == track) {
721 AliFMDDebug(1, ("already had a hit in FMD%d%c[%2d,%3d] for track # %d,"
722 " adding energy (%f) to that hit (%f) -> %f",
723 detector, ring, sector, strip, track, edep, hit->Edep(),
724 hit->Edep() + edep));
725 hit->SetEdep(hit->Edep() + edep);
729 // If hit wasn't already registered, do so know.
730 hit = new (a[fNhits]) AliFMDHit(fIshunt, track, detector, ring, sector,
731 strip, x, y, z, px, py, pz, edep, pdg, t,
733 // gMC->AddTrackReference(track, 12);
738 AliMC *mcApplication = (AliMC*)gAlice->GetMCApp();
740 AliTrackReference* trackRef =
741 AddTrackReference(mcApplication->GetCurrentTrackNumber(),
742 AliTrackReference::kFMD);
743 UInt_t stripId = AliFMDStripIndex::Pack(detector,ring,sector,strip);
744 UInt_t dedx = AliFMDEncodedEdx::Encode(edep, l);
746 trackRef->SetUserId((dedx << 19) | stripId);
752 //____________________________________________________________________
754 AliFMD::AddDigit(Int_t* digits, Int_t*)
756 // Add a digit to the Digit tree
760 // digits[0] [UShort_t] Detector #
761 // digits[1] [Char_t] Ring ID
762 // digits[2] [UShort_t] Sector #
763 // digits[3] [UShort_t] Strip #
764 // digits[4] [UShort_t] ADC Count
765 // digits[5] [Short_t] ADC Count, -1 if not used
766 // digits[6] [Short_t] ADC Count, -1 if not used
768 AddDigitByFields(UShort_t(digits[0]), // Detector #
769 Char_t(digits[1]), // Ring ID
770 UShort_t(digits[2]), // Sector #
771 UShort_t(digits[3]), // Strip #
772 UShort_t(digits[4]), // ADC Count1
773 Short_t(digits[5]), // ADC Count2
774 Short_t(digits[6]), // ADC Count3
778 //____________________________________________________________________
780 AliFMD::AddDigitByFields(UShort_t detector,
791 // add a real digit - as coming from data
795 // detector Detector # (1, 2, or 3)
796 // ring Ring ID ('I' or 'O')
797 // sector Sector # (For inner/outer rings: 0-19/0-39)
798 // strip Strip # (For inner/outer rings: 0-511/0-255)
799 // count1 ADC count (a 10-bit word)
800 // count2 ADC count (a 10-bit word), or -1 if not used
801 // count3 ADC count (a 10-bit word), or -1 if not used
802 TClonesArray& a = *(DigitsArray());
804 AliFMDDebug(15, ("Adding digit # %5d/%5d for FMD%d%c[%2d,%3d]"
805 "=(%d,%d,%d,%d) with %d tracks",
806 fNdigits-1, a.GetEntriesFast(),
807 detector, ring, sector, strip,
808 count1, count2, count3, count4, nrefs));
810 AliFMDDigit(detector, ring, sector, strip,
811 count1, count2, count3, count4, nrefs, refs);
815 //____________________________________________________________________
817 AliFMD::AddSDigit(Int_t* digits)
819 // Add a digit to the SDigit tree
823 // digits[0] [UShort_t] Detector #
824 // digits[1] [Char_t] Ring ID
825 // digits[2] [UShort_t] Sector #
826 // digits[3] [UShort_t] Strip #
827 // digits[4] [Float_t] Total energy deposited
828 // digits[5] [UShort_t] ADC Count
829 // digits[6] [Short_t] ADC Count, -1 if not used
830 // digits[7] [Short_t] ADC Count, -1 if not used
832 AddSDigitByFields(UShort_t(digits[0]), // Detector #
833 Char_t(digits[1]), // Ring ID
834 UShort_t(digits[2]), // Sector #
835 UShort_t(digits[3]), // Strip #
836 Float_t(digits[4]), // Edep
837 UShort_t(digits[5]), // ADC Count1
838 Short_t(digits[6]), // ADC Count2
839 Short_t(digits[7]), // ADC Count3
840 Short_t(digits[8]), // ADC Count4
841 UShort_t(digits[9]), // N particles
842 UShort_t(digits[10])); // N primaries
845 //____________________________________________________________________
847 AliFMD::AddSDigitByFields(UShort_t detector,
860 // add a summable digit
864 // detector Detector # (1, 2, or 3)
865 // ring Ring ID ('I' or 'O')
866 // sector Sector # (For inner/outer rings: 0-19/0-39)
867 // strip Strip # (For inner/outer rings: 0-511/0-255)
868 // edep Total energy deposited
869 // count1 ADC count (a 10-bit word)
870 // count2 ADC count (a 10-bit word), or -1 if not used
871 // count3 ADC count (a 10-bit word), or -1 if not used
873 TClonesArray& a = *(SDigitsArray());
874 // AliFMDDebug(0, ("Adding sdigit # %d", fNsdigits));
876 AliFMDDebug(15, ("Adding sdigit # %5d/%5d for FMD%d%c[%2d,%3d]"
877 "=(%d,%d,%d,%d) with %d tracks %d primaries (%p)",
878 fNsdigits-1, a.GetEntriesFast(),
879 detector, ring, sector, strip,
880 count1, count2, count3, count4, ntot, nprim, refs));
882 AliFMDSDigit(detector, ring, sector, strip, edep,
883 count1, count2, count3, count4, ntot, nprim, refs);
886 //____________________________________________________________________
888 AliFMD::ResetSDigits()
890 // Reset number of digits and the digits array for this detector.
893 if (fSDigits) fSDigits->Clear();
897 //____________________________________________________________________
901 // Initialize hit array if not already, and return pointer to it.
903 fHits = new TClonesArray("AliFMDHit", 1000);
905 if (gAlice && gAlice->GetMCApp() && gAlice->GetMCApp()->GetHitLists())
906 gAlice->GetMCApp()->AddHitList(fHits);
911 //____________________________________________________________________
913 AliFMD::DigitsArray()
915 // Initialize digit array if not already, and return pointer to it.
917 fDigits = new TClonesArray("AliFMDDigit", 1000);
923 //____________________________________________________________________
925 AliFMD::SDigitsArray()
927 // Initialize digit array if not already, and return pointer to it.
929 fSDigits = new TClonesArray("AliFMDSDigit", 1000);
935 //====================================================================
939 //____________________________________________________________________
941 AliFMD::Hits2Digits()
943 // Create AliFMDDigit's from AliFMDHit's. This is done by making a
944 // AliFMDDigitizer, and executing that code.
946 AliFMDHitDigitizer digitizer(this, AliFMDHitDigitizer::kDigits);
948 digitizer.Digitize("");
951 //____________________________________________________________________
953 AliFMD::Hits2SDigits()
955 // Create AliFMDSDigit's from AliFMDHit's. This is done by creating
956 // an AliFMDSDigitizer object, and executing it.
958 AliFMDHitDigitizer digitizer(this, AliFMDHitDigitizer::kSDigits);
960 digitizer.Digitize("");
964 //____________________________________________________________________
966 AliFMD::CreateDigitizer(AliDigitizationInput* digInput) const
968 // Create a digitizer object
970 /* This is what we probably _should_ do */
971 AliFMDBaseDigitizer* digitizer = 0;
973 #ifdef USE_SSDIGITIZER
974 digitizer = new AliFMDSSDigitizer(digInput);
976 /* This is what we actually do, and will work */
978 AliInfo("SDigit->Digit conversion not really supported, "
979 "doing Hit->Digit conversion instead");
981 digitizer = new AliFMDDigitizer(digInput);
986 //====================================================================
988 // Raw data simulation
990 //__________________________________________________________________
994 // Turn digits into raw data.
996 // This uses the class AliFMDRawWriter to do the job. Please refer
997 // to that class for more information.
998 AliFMDRawWriter writer(this);
1002 //====================================================================
1006 //__________________________________________________________________
1008 AliFMD::Raw2SDigits(AliRawReader* reader)
1010 // Turn digits into raw data.
1012 // This uses the class AliFMDRawWriter to do the job. Please refer
1013 // to that class for more information.
1014 AliFMDParameters::Instance()->Init();
1018 TClonesArray* sdigits = SDigits();
1019 AliFMDReconstructor rec;
1021 // The two boolean arguments
1022 // Make sdigits instead of digits
1023 // Subtract the pedestal off the signal
1024 rec.Digitize(reader, sdigits);
1026 // Bool_t ret = fmdReader.ReadAdcs(sdigits, kTRUE, kTRUE);
1028 UShort_t ns = sdigits->GetEntriesFast();
1029 if (AliLog::GetDebugLevel("FMD", 0) > 5) {
1030 for (UShort_t i = 0; i < ns; i++)
1031 sdigits->At(i)->Print("pl");
1033 AliFMDDebug(1, ("Got a total of %d SDigits", ns));
1035 fLoader->TreeS()->Fill();
1037 fLoader->WriteSDigits("OVERWRITE");
1043 //====================================================================
1047 //__________________________________________________________________
1049 AliFMD::Browse(TBrowser* b)
1051 // Browse this object.
1053 AliFMDDebug(30, ("\tBrowsing the FMD"));
1054 AliDetector::Browse(b);
1055 b->Add(AliFMDGeometry::Instance());
1058 //____________________________________________________________________
1060 AliFMD::AddAlignableVolumes() const
1063 // Create entries for alignable volumes associating the symbolic volume
1064 // name with the corresponding volume path. Needs to be syncronized with
1065 // eventual changes in the geometry.
1067 // This code was made by Raffaele Grosso <rgrosso@mail.cern.ch>. I
1068 // (cholm) will probably want to change it. For one, I think it
1069 // should be the job of the geometry manager to deal with this.
1070 AliInfo("Add FMD alignable volumes");
1071 AliFMDGeometry::Instance()->SetAlignableVolumes();
1073 for(size_t f = 1; f <= 3; f++){ // Detector 1,2,3
1074 for(size_t tb = 0; tb <2 ; tb++){ // Top/Bottom
1075 char stb = tb == 0 ? 'T' : 'B';
1076 unsigned min = tb == 0 ? 0 : 5;
1078 TString halfVol(Form("/ALIC_1/F%dM%c_%d", f, stb, f));
1079 TString halfSym(halfVol);
1080 if(!gGeoManager->SetAlignableEntry(halfSym.Data(),halfVol.Data()))
1081 AliFatal(Form("Alignable entry %s not created. "
1082 "Volume path %s not valid",
1083 halfSym.Data(),halfVol.Data()));
1084 for(size_t io = 0; io < 2; io++){ // inner, outer
1085 if (f==1 && io==1) continue; // Only one ring in FMD1
1086 if(tb == 1 && io==1) min=10;
1087 char sio = (io == 0 ? 'I' : 'O');
1088 unsigned nio = (io == 0 ? 3 : 9);
1089 unsigned max = (io == 0 ? 5 : 10) + min;
1091 for(size_t i = min; i < max; i++) { // Modules
1092 TString modVol(Form("%s/F%c%cV_7%d/F%cSE_%d", halfVol.Data(),
1093 sio, stb, nio, sio, i));
1094 TString modSym(modVol);
1095 if(!gGeoManager->SetAlignableEntry(modSym.Data(),modVol.Data()))
1096 AliFatal(Form("Alignable entry %s not created. "
1097 "Volume path %s not valid",
1098 modSym.Data(), modVol.Data()));
1105 //___________________________________________________________________