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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 <math.h> // __CMATH__
88 #include <TClonesArray.h> // ROOT_TClonesArray
89 #include <TGeometry.h> // ROOT_TGeomtry
90 #include <TNode.h> // ROOT_TNode
91 #include <TXTRU.h> // ROOT_TXTRU
92 #include <TRotMatrix.h> // ROOT_TRotMatrix
93 #include <TTUBE.h> // ROOT_TTUBE
94 #include <TTree.h> // ROOT_TTree
95 #include <TBrowser.h> // ROOT_TBrowser
96 // #include <TVirtualMC.h> // ROOT_TVirtualMC
97 #include <TVector2.h> // ROOT_TVector2
98 #include <TGeoManager.h> // ROOT_TGeoManager
100 #include <AliRunDigitizer.h> // ALIRUNDIGITIZER_H
101 #include <AliLoader.h> // ALILOADER_H
102 #include <AliRun.h> // ALIRUN_H
103 #include <AliMC.h> // ALIMC_H
104 #include <AliMagF.h> // ALIMAGF_H
105 #include <AliLog.h> // ALILOG_H
106 #include "AliFMD.h" // ALIFMD_H
107 #include "AliFMDDigit.h" // ALIFMDDIGIT_H
108 #include "AliFMDSDigit.h" // ALIFMDSDIGIT_H
109 #include "AliFMDHit.h" // ALIFMDHIT_H
110 #include "AliFMDGeometry.h" // ALIFMDGEOMETRY_H
111 #include "AliFMDDetector.h" // ALIFMDDETECTOR_H
112 #include "AliFMDRing.h" // ALIFMDRING_H
113 #include "AliFMDDigitizer.h" // ALIFMDDIGITIZER_H
114 #include "AliFMDSDigitizer.h" // ALIFMDSDIGITIZER_H
115 // #include "AliFMDGeometryBuilder.h"
116 #include "AliFMDRawWriter.h" // ALIFMDRAWWRITER_H
117 #include "AliFMDPoints.h" // ALIFMDPOINTS_H
119 //____________________________________________________________________
122 ; // This is to keep Emacs from indenting the next line
125 //____________________________________________________________________
136 // Default constructor for class AliFMD
138 AliDebug(10, "\tDefault CTOR");
142 fBad = new TClonesArray("AliFMDHit");
145 //____________________________________________________________________
146 AliFMD::AliFMD(const AliFMD& other)
147 : AliDetector(other),
148 fSDigits(other.fSDigits),
149 fNsdigits(other.fNsdigits),
150 fDetailed(other.fDetailed),
151 fUseOld(other.fUseOld),
152 fUseAssembly(other.fUseAssembly),
158 //____________________________________________________________________
159 AliFMD::AliFMD(const char *name, const char *title)
160 : AliDetector (name, title),
165 fUseAssembly(kFALSE),
169 // Standard constructor for Forward Multiplicity Detector
171 AliDebug(10, "\tStandard CTOR");
172 fBad = new TClonesArray("AliFMDHit");
174 // Initialise Hit array
176 gAlice->GetMCApp()->AddHitList(fHits);
178 // (S)Digits for the detectors disk
182 // CHC: What is this?
184 SetMarkerColor(kRed);
185 SetLineColor(kYellow);
188 //____________________________________________________________________
191 // Destructor for base class AliFMD
214 //____________________________________________________________________
216 AliFMD::operator=(const AliFMD& other)
218 // Assignment operator
219 AliDetector::operator=(other);
220 fSDigits = other.fSDigits;
221 fNsdigits = other.fNsdigits;
222 fDetailed = other.fDetailed;
227 //====================================================================
229 // GEometry ANd Traking
231 //____________________________________________________________________
233 AliFMD::CreateGeometry()
236 // Create the geometry of Forward Multiplicity Detector. The actual
237 // construction of the geometry is delegated to the class
238 // AliFMDGeometryBuilder, invoked by the singleton manager
241 AliFMDGeometry* fmd = AliFMDGeometry::Instance();
242 fmd->SetDetailed(fDetailed);
243 fmd->UseAssembly(fUseAssembly);
247 //____________________________________________________________________
248 void AliFMD::CreateMaterials()
250 // Define the materials and tracking mediums needed by the FMD
251 // simulation. These mediums are made by sending the messages
252 // AliMaterial, AliMixture, and AliMedium to the passed AliModule
253 // object module. The defined mediums are
255 // FMD Si$ Silicon (active medium in sensors)
256 // FMD C$ Carbon fibre (support cone for FMD3 and vacuum pipe)
257 // FMD Al$ Aluminium (honeycomb support plates)
258 // FMD PCB$ Printed Circuit Board (FEE board with VA1_3)
259 // FMD Chip$ Electronics chips (currently not used)
260 // FMD Air$ Air (Air in the FMD)
261 // FMD Plastic$ Plastic (Support legs for the hybrid cards)
263 // The geometry builder should really be the one that creates the
264 // materials, but the architecture of AliROOT makes that design
265 // akward. What should happen, was that the AliFMDGeometryBuilder
266 // made the mediums, and that this class retrives pointers from the
267 // TGeoManager, and registers the mediums here. Alas, it's not
270 AliDebug(10, "\tCreating materials");
271 // Get pointer to geometry singleton object.
272 AliFMDGeometry* geometry = AliFMDGeometry::Instance();
275 if (gGeoManager && gGeoManager->GetMedium("FMD Si$")) {
276 // We need to figure out the some stuff about the geometry
277 fmd->ExtractGeomInfo();
284 Double_t density = 0;
285 Double_t radiationLength = 0;
286 Double_t absorbtionLength = 999;
287 Int_t fieldType = gAlice->Field()->Integ(); // Field type
288 Double_t maxField = gAlice->Field()->Max(); // Field max.
289 Double_t maxBending = 0; // Max Angle
290 Double_t maxStepSize = 0.001; // Max step size
291 Double_t maxEnergyLoss = 1; // Max Delta E
292 Double_t precision = 0.001; // Precision
293 Double_t minStepSize = 0.001; // Minimum step size
298 density = geometry->GetSiDensity();
299 radiationLength = 9.36;
305 AliMaterial(id, "Si$", a, z, density, radiationLength, absorbtionLength);
306 AliMedium(kSiId, "Si$", id,1,fieldType,maxField,maxBending,
307 maxStepSize,maxEnergyLoss,precision,minStepSize);
314 radiationLength = 18.8;
320 AliMaterial(id, "Carbon$", a, z, density, radiationLength, absorbtionLength);
321 AliMedium(kCarbonId, "Carbon$", id,0,fieldType,maxField,maxBending,
322 maxStepSize,maxEnergyLoss,precision,minStepSize);
328 radiationLength = 8.9;
330 AliMaterial(id, "Aluminum$",a,z, density, radiationLength, absorbtionLength);
331 AliMedium(kAlId, "Aluminum$", id, 0, fieldType, maxField, maxBending,
332 maxStepSize, maxEnergyLoss, precision, minStepSize);
339 radiationLength = 1.43;
341 AliMaterial(id, "Copper$",
342 a, z, density, radiationLength, absorbtionLength);
343 AliMedium(kCopperId, "Copper$", id, 0, fieldType, maxField, maxBending,
344 maxStepSize, maxEnergyLoss, precision, minStepSize);
349 Float_t as[] = { 12.0107, 14.0067, 15.9994,
350 1.00794, 28.0855, 107.8682 };
351 Float_t zs[] = { 6., 7., 8.,
353 Float_t ws[] = { 0.039730642, 0.001396798, 0.01169634,
354 0.004367771, 0.844665, 0.09814344903 };
361 AliMixture(id, "Si Chip$", as, zs, density, 6, ws);
362 AliMedium(kSiChipId, "Si Chip$", id, 0, fieldType, maxField, maxBending,
363 maxStepSize, maxEnergyLoss, precision, minStepSize);
368 Float_t as[] = { 1.00794, 12.0107, 14.010, 15.9994};
369 Float_t zs[] = { 1., 6., 7., 8.};
370 Float_t ws[] = { 0.026362, 0.69113, 0.07327, 0.209235};
377 AliMixture(id, "Kaption$", as, zs, density, 4, ws);
378 AliMedium(kKaptonId, "Kaption$", id,0,fieldType,maxField,maxBending,
379 maxStepSize,maxEnergyLoss,precision,minStepSize);
384 Float_t as[] = { 12.0107, 14.0067, 15.9994, 39.948 };
385 Float_t zs[] = { 6., 7., 8., 18. };
386 Float_t ws[] = { 0.000124, 0.755267, 0.231781, 0.012827 };
393 AliMixture(id, "Air$", as, zs, density, 4, ws);
394 AliMedium(kAirId, "Air$", id,0,fieldType,maxField,maxBending,
395 maxStepSize,maxEnergyLoss,precision,minStepSize);
400 Float_t zs[] = { 14., 20., 13., 12.,
404 Float_t as[] = { 28.0855, 40.078, 26.981538, 24.305,
405 10.811, 47.867, 22.98977, 39.0983,
406 55.845, 18.9984, 15.9994, 12.0107,
408 Float_t ws[] = { 0.15144894, 0.08147477, 0.04128158, 0.00904554,
409 0.01397570, 0.00287685, 0.00445114, 0.00498089,
410 0.00209828, 0.00420000, 0.36043788, 0.27529426,
411 0.01415852, 0.03427566};
418 AliMixture(id, "PCB$", as, zs, density, 14, ws);
419 AliMedium(kPcbId, "PCB$", id,0,fieldType,maxField,maxBending,
420 maxStepSize,maxEnergyLoss,precision,minStepSize);
425 Float_t as[] = { 1.01, 12.01 };
426 Float_t zs[] = { 1., 6. };
427 Float_t ws[] = { 1., 1. };
434 AliMixture(id, "Plastic$", as, zs, density, -2, ws);
435 AliMedium(kPlasticId, "Plastic$", id,0,fieldType,maxField,maxBending,
436 maxStepSize,maxEnergyLoss,precision,minStepSize);
440 //____________________________________________________________________
444 // Initialize the detector
446 AliDebug(1, "Initialising FMD detector object");
447 // AliFMDGeometry* fmd = AliFMDGeometry::Instance();
448 // fmd->InitTransformations();
451 //____________________________________________________________________
453 AliFMD::FinishEvent()
455 // Called at the end of the an event in simulations. If the debug
456 // level is high enough, then the `bad' hits are printed.
458 if (AliLog::GetDebugLevel("FMD", "AliFMD") < 10) return;
459 if (fBad && fBad->GetEntries() > 0) {
460 AliWarning((Form("EndEvent", "got %d 'bad' hits", fBad->GetEntries())));
463 while ((hit = static_cast<AliFMDHit*>(next()))) hit->Print("D");
469 //====================================================================
471 // Graphics and event display
473 //____________________________________________________________________
475 AliFMD::BuildGeometry()
478 // Build simple ROOT TNode geometry for event display. With the new
479 // geometry modeller, TGeoManager, this seems rather redundant.
480 AliDebug(10, "\tCreating a simplified geometry");
482 AliFMDGeometry* fmd = AliFMDGeometry::Instance();
484 static TXTRU* innerShape = 0;
485 static TXTRU* outerShape = 0;
486 static TObjArray* innerRot = 0;
487 static TObjArray* outerRot = 0;
489 if (!innerShape || !outerShape) {
490 // Make the shapes for the modules
491 for (Int_t i = 0; i < 2; i++) {
494 case 0: r = fmd->GetRing('I'); break;
495 case 1: r = fmd->GetRing('O'); break;
498 AliError(Form("no ring found for i=%d", i));
501 Double_t siThick = r->GetSiThickness();
502 const Int_t knv = r->GetNVerticies();
503 Double_t theta = r->GetTheta();
504 Int_t nmod = r->GetNModules();
506 TXTRU* shape = new TXTRU(r->GetName(), r->GetTitle(), "void", knv, 2);
507 for (Int_t j = 0; j < knv; j++) {
508 TVector2* vv = r->GetVertex(knv - 1 - j);
509 shape->DefineVertex(j, vv->X(), vv->Y());
511 shape->DefineSection(0, -siThick / 2, 1, 0, 0);
512 shape->DefineSection(1, +siThick / 2, 1, 0, 0);
513 shape->SetLineColor(GetLineColor());
515 TObjArray* rots = new TObjArray(nmod);
516 for (Int_t j = 0; j < nmod; j++) {
517 Double_t th = (j + .5) * theta * 2;
518 TString name(Form("FMD_ring_%c_rot_%02d", r->GetId(), j));
519 TString title(Form("FMD Ring %c Rotation # %d", r->GetId(), j));
520 TRotMatrix* rot = new TRotMatrix(name.Data(), title.Data(),
521 90, th, 90, fmod(90+th,360), 0, 0);
525 switch (r->GetId()) {
527 case 'I': innerShape = shape; innerRot = rots; break;
529 case 'O': outerShape = shape; outerRot = rots; break;
534 TNode* top = gAlice->GetGeometry()->GetNode("alice");
536 for (Int_t i = 1; i <= 3; i++) {
537 AliFMDDetector* det = fmd->GetDetector(i);
539 Warning("BuildGeometry", "FMD%d seems to be disabled", i);
543 Double_t rh = det->GetRing('I')->GetHighR();
545 if (det->GetRing('O')) {
546 w = TMath::Abs(det->GetRingZ('O') - det->GetRingZ('I'));
547 id = (TMath::Abs(det->GetRingZ('O'))
548 > TMath::Abs(det->GetRingZ('I')) ? 'O' : 'I');
549 rh = det->GetRing('O')->GetHighR();
551 w += (det->GetRing(id)->GetModuleSpacing() +
552 det->GetRing(id)->GetSiThickness());
553 TShape* shape = new TTUBE(det->GetName(), det->GetTitle(), "void",
554 det->GetRing('I')->GetLowR(), rh, w / 2);
555 Double_t z = (det->GetRingZ('I') - w / 2);
556 if (z > 0) z += det->GetRing(id)->GetModuleSpacing();
558 TNode* node = new TNode(det->GetName(), det->GetTitle(), shape,
562 for (Int_t j = 0; j < 2; j++) {
568 r = det->GetRing('I'); rshape = innerShape; rots = innerRot; break;
570 r = det->GetRing('O'); rshape = outerShape; rots = outerRot; break;
574 Double_t siThick = r->GetSiThickness();
575 Int_t nmod = r->GetNModules();
576 Double_t modspace = r->GetModuleSpacing();
577 Double_t rz = - (z - det->GetRingZ(r->GetId()));
579 for (Int_t k = 0; k < nmod; k++) {
581 Double_t offz = (k % 2 == 1 ? modspace : 0);
582 TRotMatrix* rot = static_cast<TRotMatrix*>(rots->At(k));
583 TString name(Form("%s%c_module_%02d", det->GetName(), r->GetId(),k));
584 TString title(Form("%s%c Module %d", det->GetName(), r->GetId(),k));
585 TNode* mnod = new TNode(name.Data(), title.Data(), rshape,
586 0, 0, rz - siThick / 2
587 + TMath::Sign(offz,z), rot);
588 mnod->SetLineColor(GetLineColor());
590 } // for (Int_t k = 0 ; ...)
591 } // for (Int_t j = 0 ; ...)
592 } // for (Int_t i = 1 ; ...)
595 //____________________________________________________________________
597 AliFMD::LoadPoints(Int_t /* track */)
599 // Store x, y, z of all hits in memory for display.
601 // Normally, the hits are drawn using TPolyMarker3D - however, that
602 // is not very useful for the FMD. Therefor, this member function
603 // is overloaded to make TMarker3D, via the class AliFMDPoints.
604 // AliFMDPoints is a local class.
607 AliError(Form("fHits == 0. Name is %s",GetName()));
610 Int_t nHits = fHits->GetEntriesFast();
614 Int_t tracks = gAlice->GetMCApp()->GetNtrack();
615 if (fPoints == 0) fPoints = new TObjArray(2 * tracks);
618 AliFMDGeometry* geom = AliFMDGeometry::Instance();
620 geom->InitTransformations();
622 // Now make markers for each hit
623 // AliInfo(Form("Drawing %d hits (have %d points) for track %d",
624 // nHits, fPoints->GetEntriesFast(), track));
625 for (Int_t ihit = 0; ihit < nHits; ihit++) {
626 AliFMDHit* hit = static_cast<AliFMDHit*>(fHits->At(ihit));
628 Double_t edep = hit->Edep();
629 Double_t m = hit->M();
630 Double_t poverm = (m == 0 ? 0 : hit->P());
631 Double_t absQ = TMath::Abs(hit->Q());
633 // This `if' is to debug abnormal energy depositions. We trigger on
634 // p/m approx larger than or equal to a MIP, and a large edep - more
635 // than 1 keV - a MIP is 100 eV.
636 if (edep > absQ * absQ && poverm > 1) bad = kTRUE;
638 AliFMDPoints* p1 = new AliFMDPoints(hit, GetMarkerColor());
639 // AliPoints* p1 = new AliPoints();
640 // p1->SetMarkerColor(GetMarkerColor());
641 // p1->SetMarkerSize(GetMarkerSize());
642 // p1->SetPoint(0, hit->X(), hit->Y(), hit->Z());
643 p1->SetDetector(this);
644 p1->SetParticle(hit->GetTrack());
645 fPoints->AddAt(p1, hit->GetTrack());
647 p1->SetMarkerColor(4);
648 // p1->SetMarkerSize(2 * GetMarkerSize());
652 geom->Detector2XYZ(hit->Detector(), hit->Ring(), hit->Sector(),
653 hit->Strip(), x, y, z);
654 AliFMDPoints* p = new AliFMDPoints(hit, 3);
655 // AliPoints* p = new AliPoints();
656 // p->SetMarkerColor(3);
657 // p->SetMarkerSize(GetMarkerSize());
658 // p->SetPoint(0, x, y, z);
659 p->SetDetector(this);
660 p->SetParticle(hit->GetTrack());
662 p->SetMarkerColor(3);
663 fPoints->AddAt(p, tracks+hit->GetTrack());
665 p->SetMarkerColor(5);
666 // p->SetMarkerSize(2 * GetMarkerSize());
668 // AliInfo(Form("Adding point at %d", tracks+hit->GetTrack()));
672 //____________________________________________________________________
674 AliFMD::DrawDetector()
676 // Draw a shaded view of the Forward multiplicity detector. This
677 // isn't really useful anymore.
678 AliDebug(10, "\tDraw detector");
681 //____________________________________________________________________
683 AliFMD::DistancetoPrimitive(Int_t, Int_t)
685 // Calculate the distance from the mouse to the FMD on the screen
691 //====================================================================
693 // Hit and Digit managment
695 //____________________________________________________________________
697 AliFMD::MakeBranch(Option_t * option)
699 // Create Tree branches for the FMD.
703 // H Make a branch of TClonesArray of AliFMDHit's
704 // D Make a branch of TClonesArray of AliFMDDigit's
705 // S Make a branch of TClonesArray of AliFMDSDigit's
707 const Int_t kBufferSize = 16000;
708 TString branchname(GetName());
711 if (opt.Contains("H", TString::kIgnoreCase)) {
713 AliDetector::MakeBranch(option);
715 if (opt.Contains("D", TString::kIgnoreCase)) {
717 MakeBranchInTree(fLoader->TreeD(), branchname.Data(),
718 &fDigits, kBufferSize, 0);
720 if (opt.Contains("S", TString::kIgnoreCase)) {
722 MakeBranchInTree(fLoader->TreeS(), branchname.Data(),
723 &fSDigits, kBufferSize, 0);
727 //____________________________________________________________________
729 AliFMD::SetTreeAddress()
731 // Set branch address for the Hits, Digits, and SDigits Tree.
732 if (fLoader->TreeH()) HitsArray();
733 AliDetector::SetTreeAddress();
735 TTree *treeD = fLoader->TreeD();
738 TBranch* branch = treeD->GetBranch ("FMD");
739 if (branch) branch->SetAddress(&fDigits);
742 TTree *treeS = fLoader->TreeS();
745 TBranch* branch = treeS->GetBranch ("FMD");
746 if (branch) branch->SetAddress(&fSDigits);
750 //____________________________________________________________________
752 AliFMD::SetHitsAddressBranch(TBranch *b)
754 // Set the TClonesArray to read hits into.
755 b->SetAddress(&fHits);
758 //____________________________________________________________________
760 AliFMD::AddHit(Int_t track, Int_t *vol, Float_t *hits)
762 // Add a hit to the hits tree
764 // The information of the two arrays are decoded as
768 // ivol[0] [UShort_t ] Detector #
769 // ivol[1] [Char_t ] Ring ID
770 // ivol[2] [UShort_t ] Sector #
771 // ivol[3] [UShort_t ] Strip #
772 // hits[0] [Float_t ] Track's X-coordinate at hit
773 // hits[1] [Float_t ] Track's Y-coordinate at hit
774 // hits[3] [Float_t ] Track's Z-coordinate at hit
775 // hits[4] [Float_t ] X-component of track's momentum
776 // hits[5] [Float_t ] Y-component of track's momentum
777 // hits[6] [Float_t ] Z-component of track's momentum
778 // hits[7] [Float_t ] Energy deposited by track
779 // hits[8] [Int_t ] Track's particle Id #
780 // hits[9] [Float_t ] Time when the track hit
783 AddHitByFields(track,
784 UShort_t(vol[0]), // Detector #
785 Char_t(vol[1]), // Ring ID
786 UShort_t(vol[2]), // Sector #
787 UShort_t(vol[3]), // Strip #
794 hits[6], // Energy loss
795 Int_t(hits[7]), // PDG
799 //____________________________________________________________________
801 AliFMD::AddHitByFields(Int_t track,
818 // Add a hit to the list
823 // detector Detector # (1, 2, or 3)
824 // ring Ring ID ('I' or 'O')
825 // sector Sector # (For inner/outer rings: 0-19/0-39)
826 // strip Strip # (For inner/outer rings: 0-511/0-255)
827 // x Track's X-coordinate at hit
828 // y Track's Y-coordinate at hit
829 // z Track's Z-coordinate at hit
830 // px X-component of track's momentum
831 // py Y-component of track's momentum
832 // pz Z-component of track's momentum
833 // edep Energy deposited by track
834 // pdg Track's particle Id #
835 // t Time when the track hit
836 // l Track length through the material.
837 // stop Whether track was stopped or disappeared
839 TClonesArray& a = *(HitsArray());
840 // Search through the list of already registered hits, and see if we
841 // find a hit with the same parameters. If we do, then don't create
842 // a new hit, but rather update the energy deposited in the hit.
843 // This is done, so that a FLUKA based simulation will get the
844 // number of hits right, not just the enerrgy deposition.
846 for (Int_t i = 0; i < fNhits; i++) {
847 if (!a.At(i)) continue;
848 hit = static_cast<AliFMDHit*>(a.At(i));
849 if (hit->Detector() == detector
850 && hit->Ring() == ring
851 && hit->Sector() == sector
852 && hit->Strip() == strip
853 && hit->Track() == track) {
854 AliDebug(1, Form("already had a hit in FMD%d%c[%2d,%3d] for track # %d,"
855 " adding energy (%f) to that hit (%f) -> %f",
856 detector, ring, sector, strip, track, edep, hit->Edep(),
857 hit->Edep() + edep));
858 hit->SetEdep(hit->Edep() + edep);
862 // If hit wasn't already registered, do so know.
863 hit = new (a[fNhits]) AliFMDHit(fIshunt, track, detector, ring, sector,
864 strip, x, y, z, px, py, pz, edep, pdg, t,
870 //____________________________________________________________________
872 AliFMD::AddDigit(Int_t* digits, Int_t*)
874 // Add a digit to the Digit tree
878 // digits[0] [UShort_t] Detector #
879 // digits[1] [Char_t] Ring ID
880 // digits[2] [UShort_t] Sector #
881 // digits[3] [UShort_t] Strip #
882 // digits[4] [UShort_t] ADC Count
883 // digits[5] [Short_t] ADC Count, -1 if not used
884 // digits[6] [Short_t] ADC Count, -1 if not used
886 AddDigitByFields(UShort_t(digits[0]), // Detector #
887 Char_t(digits[1]), // Ring ID
888 UShort_t(digits[2]), // Sector #
889 UShort_t(digits[3]), // Strip #
890 UShort_t(digits[4]), // ADC Count1
891 Short_t(digits[5]), // ADC Count2
892 Short_t(digits[6])); // ADC Count3
895 //____________________________________________________________________
897 AliFMD::AddDigitByFields(UShort_t detector,
905 // add a real digit - as coming from data
909 // detector Detector # (1, 2, or 3)
910 // ring Ring ID ('I' or 'O')
911 // sector Sector # (For inner/outer rings: 0-19/0-39)
912 // strip Strip # (For inner/outer rings: 0-511/0-255)
913 // count1 ADC count (a 10-bit word)
914 // count2 ADC count (a 10-bit word), or -1 if not used
915 // count3 ADC count (a 10-bit word), or -1 if not used
916 TClonesArray& a = *(DigitsArray());
919 AliFMDDigit(detector, ring, sector, strip, count1, count2, count3);
922 //____________________________________________________________________
924 AliFMD::AddSDigit(Int_t* digits)
926 // Add a digit to the SDigit tree
930 // digits[0] [UShort_t] Detector #
931 // digits[1] [Char_t] Ring ID
932 // digits[2] [UShort_t] Sector #
933 // digits[3] [UShort_t] Strip #
934 // digits[4] [Float_t] Total energy deposited
935 // digits[5] [UShort_t] ADC Count
936 // digits[6] [Short_t] ADC Count, -1 if not used
937 // digits[7] [Short_t] ADC Count, -1 if not used
939 AddSDigitByFields(UShort_t(digits[0]), // Detector #
940 Char_t(digits[1]), // Ring ID
941 UShort_t(digits[2]), // Sector #
942 UShort_t(digits[3]), // Strip #
943 Float_t(digits[4]), // Edep
944 UShort_t(digits[5]), // ADC Count1
945 Short_t(digits[6]), // ADC Count2
946 Short_t(digits[7])); // ADC Count3
949 //____________________________________________________________________
951 AliFMD::AddSDigitByFields(UShort_t detector,
960 // add a summable digit
964 // detector Detector # (1, 2, or 3)
965 // ring Ring ID ('I' or 'O')
966 // sector Sector # (For inner/outer rings: 0-19/0-39)
967 // strip Strip # (For inner/outer rings: 0-511/0-255)
968 // edep Total energy deposited
969 // count1 ADC count (a 10-bit word)
970 // count2 ADC count (a 10-bit word), or -1 if not used
971 // count3 ADC count (a 10-bit word), or -1 if not used
973 TClonesArray& a = *(SDigitsArray());
976 AliFMDSDigit(detector, ring, sector, strip, edep, count1, count2, count3);
979 //____________________________________________________________________
981 AliFMD::ResetSDigits()
983 // Reset number of digits and the digits array for this detector.
986 if (fSDigits) fSDigits->Clear();
990 //____________________________________________________________________
994 // Initialize hit array if not already, and return pointer to it.
996 fHits = new TClonesArray("AliFMDHit", 1000);
1002 //____________________________________________________________________
1004 AliFMD::DigitsArray()
1006 // Initialize digit array if not already, and return pointer to it.
1008 fDigits = new TClonesArray("AliFMDDigit", 1000);
1014 //____________________________________________________________________
1016 AliFMD::SDigitsArray()
1018 // Initialize digit array if not already, and return pointer to it.
1020 fSDigits = new TClonesArray("AliFMDSDigit", 1000);
1026 //====================================================================
1030 //____________________________________________________________________
1032 AliFMD::Hits2Digits()
1034 // Create AliFMDDigit's from AliFMDHit's. This is done by making a
1035 // AliFMDDigitizer, and executing that code.
1037 Warning("Hits2Digits", "Try not to use this method.\n"
1038 "Instead, use AliSimulator");
1039 AliRunDigitizer* manager = new AliRunDigitizer(1, 1);
1040 manager->SetInputStream(0, "galice.root");
1041 manager->SetOutputFile("H2Dfile");
1043 /* AliDigitizer* dig =*/ CreateDigitizer(manager);
1048 //____________________________________________________________________
1050 AliFMD::Hits2SDigits()
1052 // Create AliFMDSDigit's from AliFMDHit's. This is done by creating
1053 // an AliFMDSDigitizer object, and executing it.
1055 AliFMDSDigitizer* digitizer = new AliFMDSDigitizer("galice.root");
1056 digitizer->Exec("");
1061 //____________________________________________________________________
1063 AliFMD::CreateDigitizer(AliRunDigitizer* manager) const
1065 // Create a digitizer object
1066 AliFMDDigitizer* digitizer = new AliFMDDigitizer(manager);
1070 //====================================================================
1072 // Raw data simulation
1074 //__________________________________________________________________
1076 AliFMD::Digits2Raw()
1078 // Turn digits into raw data.
1080 // This uses the class AliFMDRawWriter to do the job. Please refer
1081 // to that class for more information.
1082 AliFMDRawWriter writer(this);
1087 //====================================================================
1091 //__________________________________________________________________
1093 AliFMD::Browse(TBrowser* b)
1095 // Browse this object.
1097 AliDebug(30, "\tBrowsing the FMD");
1098 AliDetector::Browse(b);
1099 b->Add(AliFMDGeometry::Instance());
1102 //____________________________________________________________________
1104 AliFMD::AddAlignableVolumes() const
1107 // Create entries for alignable volumes associating the symbolic volume
1108 // name with the corresponding volume path. Needs to be syncronized with
1109 // eventual changes in the geometry.
1111 // This code was made by Raffaele Grosso <rgrosso@mail.cern.ch>. I
1112 // (cholm) will probably want to change it. For one, I think it
1113 // should be the job of the geometry manager to deal with this.
1114 for(size_t f = 1; f <= 3; f++){ // Detector 1,2,3
1115 for(size_t tb = 0; tb <2 ; tb++){ // Top/Bottom
1116 char stb = tb == 0 ? 'T' : 'B';
1117 unsigned min = tb == 0 ? 0 : 5;
1119 TString halfVol(Form("/ALIC_1/F%dM%c_%d", f, stb, f));
1120 TString halfSym(halfVol);
1121 if(!gGeoManager->SetAlignableEntry(halfSym.Data(),halfVol.Data()))
1122 AliFatal(Form("Alignable entry %s not created. "
1123 "Volume path %s not valid",
1124 halfSym.Data(),halfVol.Data()));
1125 for(size_t io = 0; io < 2; io++){ // inner, outer
1126 if (f==1 && io==1) continue; // Only one ring in FMD1
1127 if(tb == 1 && io==1) min=10;
1128 char sio = (io == 0 ? 'I' : 'O');
1129 unsigned nio = (io == 0 ? 3 : 9);
1130 unsigned max = (io == 0 ? 5 : 10) + min;
1132 for(size_t i = min; i < max; i++) { // Modules
1133 TString modVol(Form("%s/F%c%cV_7%d/F%cSE_%d", halfVol.Data(),
1134 sio, stb, nio, sio, i));
1135 TString modSym(modVol);
1136 if(!gGeoManager->SetAlignableEntry(modSym.Data(),modVol.Data()))
1137 AliFatal(Form("Alignable entry %s not created. "
1138 "Volume path %s not valid",
1139 modSym.Data(), modVol.Data()));
1146 //___________________________________________________________________