1 /**************************************************************************
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4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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14 **************************************************************************/
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 <cmath> // __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 "AliFMDDebug.h" // Better debug macros
107 #include "AliFMD.h" // ALIFMD_H
108 #include "AliFMDDigit.h" // ALIFMDDIGIT_H
109 #include "AliFMDSDigit.h" // ALIFMDSDIGIT_H
110 #include "AliFMDHit.h" // ALIFMDHIT_H
111 #include "AliFMDGeometry.h" // ALIFMDGEOMETRY_H
112 #include "AliFMDDetector.h" // ALIFMDDETECTOR_H
113 #include "AliFMDRing.h" // ALIFMDRING_H
114 #include "AliFMDDigitizer.h" // ALIFMDDIGITIZER_H
115 #include "AliFMDHitDigitizer.h" // ALIFMDSDIGITIZER_H
116 // #define USE_SSDIGITIZER
117 //#ifdef USE_SSDIGITIZER
118 //# include "AliFMDSSDigitizer.h" // ALIFMDSDIGITIZER_H
120 // #include "AliFMDGeometryBuilder.h"
121 #include "AliFMDRawWriter.h" // ALIFMDRAWWRITER_H
122 #include "AliFMDPoints.h" // ALIFMDPOINTS_H
124 //____________________________________________________________________
127 ; // This is to keep Emacs from indenting the next line
130 //____________________________________________________________________
141 // Default constructor for class AliFMD
143 AliFMDDebug(10, ("\tDefault CTOR"));
147 fBad = new TClonesArray("AliFMDHit");
150 //____________________________________________________________________
151 AliFMD::AliFMD(const char *name, const char *title)
152 : AliDetector (name, title),
157 fUseAssembly(kFALSE),
161 // Standard constructor for Forward Multiplicity Detector
163 AliFMDDebug(10, ("\tStandard CTOR"));
164 fBad = new TClonesArray("AliFMDHit");
166 // Initialise Hit array
168 gAlice->GetMCApp()->AddHitList(fHits);
170 // (S)Digits for the detectors disk
174 // CHC: What is this?
176 //PH SetMarkerColor(kRed);
177 //PH SetLineColor(kYellow);
180 //____________________________________________________________________
183 // Destructor for base class AliFMD
207 //====================================================================
209 // GEometry ANd Traking
211 //____________________________________________________________________
213 AliFMD::CreateGeometry()
216 // Create the geometry of Forward Multiplicity Detector. The actual
217 // construction of the geometry is delegated to the class
218 // AliFMDGeometryBuilder, invoked by the singleton manager
221 AliFMDGeometry* fmd = AliFMDGeometry::Instance();
222 fmd->SetDetailed(fDetailed);
223 fmd->UseAssembly(fUseAssembly);
227 //____________________________________________________________________
228 void AliFMD::CreateMaterials()
230 // Define the materials and tracking mediums needed by the FMD
231 // simulation. These mediums are made by sending the messages
232 // AliMaterial, AliMixture, and AliMedium to the passed AliModule
233 // object module. The defined mediums are
235 // FMD Si$ Silicon (active medium in sensors)
236 // FMD C$ Carbon fibre (support cone for FMD3 and vacuum pipe)
237 // FMD Al$ Aluminium (honeycomb support plates)
238 // FMD PCB$ Printed Circuit Board (FEE board with VA1_3)
239 // FMD Chip$ Electronics chips (currently not used)
240 // FMD Air$ Air (Air in the FMD)
241 // FMD Plastic$ Plastic (Support legs for the hybrid cards)
243 // The geometry builder should really be the one that creates the
244 // materials, but the architecture of AliROOT makes that design
245 // akward. What should happen, was that the AliFMDGeometryBuilder
246 // made the mediums, and that this class retrives pointers from the
247 // TGeoManager, and registers the mediums here. Alas, it's not
250 AliFMDDebug(10, ("\tCreating materials"));
251 // Get pointer to geometry singleton object.
252 AliFMDGeometry* geometry = AliFMDGeometry::Instance();
255 if (gGeoManager && gGeoManager->GetMedium("FMD Si$")) {
256 // We need to figure out the some stuff about the geometry
257 fmd->ExtractGeomInfo();
264 Double_t density = 0;
265 Double_t radiationLength = 0;
266 Double_t absorbtionLength = 999;
267 Int_t fieldType = gAlice->Field()->Integ(); // Field type
268 Double_t maxField = gAlice->Field()->Max(); // Field max.
269 Double_t maxBending = 0; // Max Angle
270 Double_t maxStepSize = 0.001; // Max step size
271 Double_t maxEnergyLoss = 1; // Max Delta E
272 Double_t precision = 0.001; // Precision
273 Double_t minStepSize = 0.001; // Minimum step size
278 density = geometry->GetSiDensity();
279 radiationLength = 9.36;
285 AliMaterial(id, "Si$", a, z, density, radiationLength, absorbtionLength);
286 AliMedium(kSiId, "Si$", id,1,fieldType,maxField,maxBending,
287 maxStepSize,maxEnergyLoss,precision,minStepSize);
294 radiationLength = 18.8;
300 AliMaterial(id, "Carbon$", a, z, density, radiationLength, absorbtionLength);
301 AliMedium(kCarbonId, "Carbon$", id,0,fieldType,maxField,maxBending,
302 maxStepSize,maxEnergyLoss,precision,minStepSize);
308 radiationLength = 8.9;
310 AliMaterial(id, "Aluminum$",a,z, density, radiationLength, absorbtionLength);
311 AliMedium(kAlId, "Aluminum$", id, 0, fieldType, maxField, maxBending,
312 maxStepSize, maxEnergyLoss, precision, minStepSize);
319 radiationLength = 1.43;
321 AliMaterial(id, "Copper$",
322 a, z, density, radiationLength, absorbtionLength);
323 AliMedium(kCopperId, "Copper$", id, 0, fieldType, maxField, maxBending,
324 maxStepSize, maxEnergyLoss, precision, minStepSize);
329 Float_t as[] = { 12.0107, 14.0067, 15.9994,
330 1.00794, 28.0855, 107.8682 };
331 Float_t zs[] = { 6., 7., 8.,
333 Float_t ws[] = { 0.039730642, 0.001396798, 0.01169634,
334 0.004367771, 0.844665, 0.09814344903 };
341 AliMixture(id, "Si Chip$", as, zs, density, 6, ws);
342 AliMedium(kSiChipId, "Si Chip$", id, 0, fieldType, maxField, maxBending,
343 maxStepSize, maxEnergyLoss, precision, minStepSize);
348 Float_t as[] = { 1.00794, 12.0107, 14.010, 15.9994};
349 Float_t zs[] = { 1., 6., 7., 8.};
350 Float_t ws[] = { 0.026362, 0.69113, 0.07327, 0.209235};
357 AliMixture(id, "Kaption$", as, zs, density, 4, ws);
358 AliMedium(kKaptonId, "Kaption$", id,0,fieldType,maxField,maxBending,
359 maxStepSize,maxEnergyLoss,precision,minStepSize);
364 Float_t as[] = { 12.0107, 14.0067, 15.9994, 39.948 };
365 Float_t zs[] = { 6., 7., 8., 18. };
366 Float_t ws[] = { 0.000124, 0.755267, 0.231781, 0.012827 };
373 AliMixture(id, "Air$", as, zs, density, 4, ws);
374 AliMedium(kAirId, "Air$", id,0,fieldType,maxField,maxBending,
375 maxStepSize,maxEnergyLoss,precision,minStepSize);
380 Float_t zs[] = { 14., 20., 13., 12.,
384 Float_t as[] = { 28.0855, 40.078, 26.981538, 24.305,
385 10.811, 47.867, 22.98977, 39.0983,
386 55.845, 18.9984, 15.9994, 12.0107,
388 Float_t ws[] = { 0.15144894, 0.08147477, 0.04128158, 0.00904554,
389 0.01397570, 0.00287685, 0.00445114, 0.00498089,
390 0.00209828, 0.00420000, 0.36043788, 0.27529426,
391 0.01415852, 0.03427566};
398 AliMixture(id, "PCB$", as, zs, density, 14, ws);
399 AliMedium(kPcbId, "PCB$", id,0,fieldType,maxField,maxBending,
400 maxStepSize,maxEnergyLoss,precision,minStepSize);
405 Float_t as[] = { 55.847, 51.9961, 58.6934, 28.0855 };
406 Float_t zs[] = { 26., 24., 28., 14. };
407 Float_t ws[] = { .715, .18, .1, .005 };
410 AliMixture(id, "Steel$", as, zs, density, 4, ws);
411 AliMedium(kSteelId, "Steel$", id, 0, fieldType, maxField, maxBending,
412 maxStepSize, maxEnergyLoss, precision, minStepSize);
416 Float_t as[] = { 1.01, 12.01 };
417 Float_t zs[] = { 1., 6. };
418 Float_t ws[] = { 1., 1. };
425 AliMixture(id, "Plastic$", as, zs, density, -2, ws);
426 AliMedium(kPlasticId, "Plastic$", id,0,fieldType,maxField,maxBending,
427 maxStepSize,maxEnergyLoss,precision,minStepSize);
432 //____________________________________________________________________
436 // Initialize the detector
438 AliFMDDebug(1, ("Initialising FMD detector object"));
439 TVirtualMC* mc = TVirtualMC::GetMC();
440 AliFMDGeometry* fmd = AliFMDGeometry::Instance();
441 const TArrayI& actGeo = fmd->ActiveIds();
442 TArrayI actVmc(actGeo.fN);
443 for (Int_t i = 0; i < actGeo.fN; i++) {
444 TGeoVolume *sens = gGeoManager->GetVolume(actGeo[i]);
446 AliError(Form("No TGeo volume for sensitive volume ID=%d",actGeo[i]));
449 actVmc[i] = mc->VolId(sens->GetName());
450 AliFMDDebug(1, ("Active vol id # %d: %d changed to %d",
451 i, actGeo[i], actVmc[i]));
453 fmd->SetActive(actVmc.fArray, actVmc.fN);
454 // fmd->InitTransformations();
457 //____________________________________________________________________
459 AliFMD::FinishEvent()
461 // Called at the end of the an event in simulations. If the debug
462 // level is high enough, then the `bad' hits are printed.
464 if (AliLog::GetDebugLevel("FMD", "AliFMD") < 10) return;
465 if (fBad && fBad->GetEntries() > 0) {
466 AliWarning((Form("EndEvent", "got %d 'bad' hits", fBad->GetEntries())));
469 while ((hit = static_cast<AliFMDHit*>(next()))) hit->Print("D");
475 //====================================================================
477 // Graphics and event display
479 //____________________________________________________________________
481 AliFMD::BuildGeometry()
484 // Build simple ROOT TNode geometry for event display. With the new
485 // geometry modeller, TGeoManager, this seems rather redundant.
486 AliFMDDebug(10, ("\tCreating a simplified geometry"));
488 AliFMDGeometry* fmd = AliFMDGeometry::Instance();
490 static TXTRU* innerShape = 0;
491 static TXTRU* outerShape = 0;
492 static TObjArray* innerRot = 0;
493 static TObjArray* outerRot = 0;
495 if (!innerShape || !outerShape) {
496 // Make the shapes for the modules
497 for (Int_t i = 0; i < 2; i++) {
500 case 0: r = fmd->GetRing('I'); break;
501 case 1: r = fmd->GetRing('O'); break;
504 AliError(Form("no ring found for i=%d", i));
507 Double_t siThick = r->GetSiThickness();
508 const Int_t knv = r->GetNVerticies();
509 Double_t theta = r->GetTheta();
510 Int_t nmod = r->GetNModules();
512 TXTRU* shape = new TXTRU(r->GetName(), r->GetTitle(), "void", knv, 2);
513 for (Int_t j = 0; j < knv; j++) {
514 TVector2* vv = r->GetVertex(knv - 1 - j);
515 shape->DefineVertex(j, vv->X(), vv->Y());
517 shape->DefineSection(0, -siThick / 2, 1, 0, 0);
518 shape->DefineSection(1, +siThick / 2, 1, 0, 0);
519 shape->SetLineColor(kYellow); //PH kYellow is the default line color in FMD
521 TObjArray* rots = new TObjArray(nmod);
522 for (Int_t j = 0; j < nmod; j++) {
523 Double_t th = (j + .5) * theta * 2;
524 TString name(Form("FMD_ring_%c_rot_%02d", r->GetId(), j));
525 TString title(Form("FMD Ring %c Rotation # %d", r->GetId(), j));
526 TRotMatrix* rot = new TRotMatrix(name.Data(), title.Data(),
527 90, th, 90, fmod(90+th,360), 0, 0);
531 switch (r->GetId()) {
533 case 'I': innerShape = shape; innerRot = rots; break;
535 case 'O': outerShape = shape; outerRot = rots; break;
540 TNode* top = gAlice->GetGeometry()->GetNode("alice");
542 for (Int_t i = 1; i <= 3; i++) {
543 AliFMDDetector* det = fmd->GetDetector(i);
545 Warning("BuildGeometry", "FMD%d seems to be disabled", i);
549 Double_t rh = det->GetRing('I')->GetHighR();
551 if (det->GetRing('O')) {
552 w = TMath::Abs(det->GetRingZ('O') - det->GetRingZ('I'));
553 id = (TMath::Abs(det->GetRingZ('O'))
554 > TMath::Abs(det->GetRingZ('I')) ? 'O' : 'I');
555 rh = det->GetRing('O')->GetHighR();
557 w += (det->GetRing(id)->GetModuleSpacing() +
558 det->GetRing(id)->GetSiThickness());
559 TShape* shape = new TTUBE(det->GetName(), det->GetTitle(), "void",
560 det->GetRing('I')->GetLowR(), rh, w / 2);
561 Double_t z = (det->GetRingZ('I') - w / 2);
562 if (z > 0) z += det->GetRing(id)->GetModuleSpacing();
564 TNode* node = new TNode(det->GetName(), det->GetTitle(), shape,
568 for (Int_t j = 0; j < 2; j++) {
574 r = det->GetRing('I'); rshape = innerShape; rots = innerRot; break;
576 r = det->GetRing('O'); rshape = outerShape; rots = outerRot; break;
580 Double_t siThick = r->GetSiThickness();
581 Int_t nmod = r->GetNModules();
582 Double_t modspace = r->GetModuleSpacing();
583 Double_t rz = - (z - det->GetRingZ(r->GetId()));
585 for (Int_t k = 0; k < nmod; k++) {
587 Double_t offz = (k % 2 == 1 ? modspace : 0);
588 TRotMatrix* rot = static_cast<TRotMatrix*>(rots->At(k));
589 TString name(Form("%s%c_module_%02d", det->GetName(), r->GetId(),k));
590 TString title(Form("%s%c Module %d", det->GetName(), r->GetId(),k));
591 TNode* mnod = new TNode(name.Data(), title.Data(), rshape,
592 0, 0, rz - siThick / 2
593 + TMath::Sign(offz,z), rot);
594 mnod->SetLineColor(kYellow); //PH kYellow is the default line color in FMD
596 } // for (Int_t k = 0 ; ...)
597 } // for (Int_t j = 0 ; ...)
598 } // for (Int_t i = 1 ; ...)
601 //____________________________________________________________________
603 AliFMD::LoadPoints(Int_t /* track */)
605 // Store x, y, z of all hits in memory for display.
607 // Normally, the hits are drawn using TPolyMarker3D - however, that
608 // is not very useful for the FMD. Therefor, this member function
609 // is overloaded to make TMarker3D, via the class AliFMDPoints.
610 // AliFMDPoints is a local class.
613 AliError(Form("fHits == 0. Name is %s",GetName()));
616 Int_t nHits = fHits->GetEntriesFast();
620 Int_t tracks = gAlice->GetMCApp()->GetNtrack();
621 if (fPoints == 0) fPoints = new TObjArray(2 * tracks);
624 AliFMDGeometry* geom = AliFMDGeometry::Instance();
626 geom->InitTransformations();
628 // Now make markers for each hit
629 // AliInfo(Form("Drawing %d hits (have %d points) for track %d",
630 // nHits, fPoints->GetEntriesFast(), track));
631 for (Int_t ihit = 0; ihit < nHits; ihit++) {
632 AliFMDHit* hit = static_cast<AliFMDHit*>(fHits->At(ihit));
634 Double_t edep = hit->Edep();
635 Double_t m = hit->M();
636 Double_t poverm = (m == 0 ? 0 : hit->P());
637 Double_t absQ = TMath::Abs(hit->Q());
639 // This `if' is to debug abnormal energy depositions. We trigger on
640 // p/m approx larger than or equal to a MIP, and a large edep - more
641 // than 1 keV - a MIP is 100 eV.
642 if (edep > absQ * absQ && poverm > 1) bad = kTRUE;
644 AliFMDPoints* p1 = new AliFMDPoints(hit, kRed); //PH kRed is the default marker color in FMD
645 // AliPoints* p1 = new AliPoints();
646 // p1->SetMarkerColor(GetMarkerColor());
647 // p1->SetMarkerSize(GetMarkerSize());
648 // p1->SetPoint(0, hit->X(), hit->Y(), hit->Z());
649 p1->SetDetector(this);
650 p1->SetParticle(hit->GetTrack());
651 fPoints->AddAt(p1, hit->GetTrack());
653 p1->SetMarkerColor(4);
654 // p1->SetMarkerSize(2 * GetMarkerSize());
658 geom->Detector2XYZ(hit->Detector(), hit->Ring(), hit->Sector(),
659 hit->Strip(), x, y, z);
660 AliFMDPoints* p = new AliFMDPoints(hit, 3);
661 // AliPoints* p = new AliPoints();
662 // p->SetMarkerColor(3);
663 // p->SetMarkerSize(GetMarkerSize());
664 // p->SetPoint(0, x, y, z);
665 p->SetDetector(this);
666 p->SetParticle(hit->GetTrack());
668 p->SetMarkerColor(3);
669 fPoints->AddAt(p, tracks+hit->GetTrack());
671 p->SetMarkerColor(5);
672 // p->SetMarkerSize(2 * GetMarkerSize());
674 // AliInfo(Form("Adding point at %d", tracks+hit->GetTrack()));
678 //____________________________________________________________________
680 AliFMD::DrawDetector()
682 // Draw a shaded view of the Forward multiplicity detector. This
683 // isn't really useful anymore.
684 AliFMDDebug(10, ("\tDraw detector"));
687 //____________________________________________________________________
689 AliFMD::DistancetoPrimitive(Int_t, Int_t)
691 // Calculate the distance from the mouse to the FMD on the screen
697 //====================================================================
699 // Hit and Digit managment
701 //____________________________________________________________________
703 AliFMD::MakeBranch(Option_t * option)
705 // Create Tree branches for the FMD.
709 // H Make a branch of TClonesArray of AliFMDHit's
710 // D Make a branch of TClonesArray of AliFMDDigit's
711 // S Make a branch of TClonesArray of AliFMDSDigit's
713 const Int_t kBufferSize = 16000;
714 TString branchname(GetName());
717 if (opt.Contains("H", TString::kIgnoreCase)) {
719 AliDetector::MakeBranch(option);
721 if (opt.Contains("D", TString::kIgnoreCase)) {
723 MakeBranchInTree(fLoader->TreeD(), branchname.Data(),
724 &fDigits, kBufferSize, 0);
726 if (opt.Contains("S", TString::kIgnoreCase)) {
728 MakeBranchInTree(fLoader->TreeS(), branchname.Data(),
729 &fSDigits, kBufferSize, 0);
733 //____________________________________________________________________
735 AliFMD::SetTreeAddress()
737 // Set branch address for the Hits, Digits, and SDigits Tree.
738 if (fLoader->TreeH()) HitsArray();
739 AliDetector::SetTreeAddress();
741 TTree *treeD = fLoader->TreeD();
744 TBranch* branch = treeD->GetBranch ("FMD");
745 if (branch) branch->SetAddress(&fDigits);
748 TTree *treeS = fLoader->TreeS();
751 TBranch* branch = treeS->GetBranch ("FMD");
752 if (branch) branch->SetAddress(&fSDigits);
756 //____________________________________________________________________
758 AliFMD::SetHitsAddressBranch(TBranch *b)
760 // Set the TClonesArray to read hits into.
761 b->SetAddress(&fHits);
763 //____________________________________________________________________
765 AliFMD::SetSDigitsAddressBranch(TBranch *b)
767 // Set the TClonesArray to read hits into.
768 b->SetAddress(&fSDigits);
771 //____________________________________________________________________
773 AliFMD::AddHit(Int_t track, Int_t *vol, Float_t *hits)
775 // Add a hit to the hits tree
777 // The information of the two arrays are decoded as
781 // ivol[0] [UShort_t ] Detector #
782 // ivol[1] [Char_t ] Ring ID
783 // ivol[2] [UShort_t ] Sector #
784 // ivol[3] [UShort_t ] Strip #
785 // hits[0] [Float_t ] Track's X-coordinate at hit
786 // hits[1] [Float_t ] Track's Y-coordinate at hit
787 // hits[3] [Float_t ] Track's Z-coordinate at hit
788 // hits[4] [Float_t ] X-component of track's momentum
789 // hits[5] [Float_t ] Y-component of track's momentum
790 // hits[6] [Float_t ] Z-component of track's momentum
791 // hits[7] [Float_t ] Energy deposited by track
792 // hits[8] [Int_t ] Track's particle Id #
793 // hits[9] [Float_t ] Time when the track hit
796 AddHitByFields(track,
797 UShort_t(vol[0]), // Detector #
798 Char_t(vol[1]), // Ring ID
799 UShort_t(vol[2]), // Sector #
800 UShort_t(vol[3]), // Strip #
807 hits[6], // Energy loss
808 Int_t(hits[7]), // PDG
812 //____________________________________________________________________
814 AliFMD::AddHitByFields(Int_t track,
831 // Add a hit to the list
836 // detector Detector # (1, 2, or 3)
837 // ring Ring ID ('I' or 'O')
838 // sector Sector # (For inner/outer rings: 0-19/0-39)
839 // strip Strip # (For inner/outer rings: 0-511/0-255)
840 // x Track's X-coordinate at hit
841 // y Track's Y-coordinate at hit
842 // z Track's Z-coordinate at hit
843 // px X-component of track's momentum
844 // py Y-component of track's momentum
845 // pz Z-component of track's momentum
846 // edep Energy deposited by track
847 // pdg Track's particle Id #
848 // t Time when the track hit
849 // l Track length through the material.
850 // stop Whether track was stopped or disappeared
852 TClonesArray& a = *(HitsArray());
853 // Search through the list of already registered hits, and see if we
854 // find a hit with the same parameters. If we do, then don't create
855 // a new hit, but rather update the energy deposited in the hit.
856 // This is done, so that a FLUKA based simulation will get the
857 // number of hits right, not just the enerrgy deposition.
859 for (Int_t i = 0; i < fNhits; i++) {
860 if (!a.At(i)) continue;
861 hit = static_cast<AliFMDHit*>(a.At(i));
862 if (hit->Detector() == detector
863 && hit->Ring() == ring
864 && hit->Sector() == sector
865 && hit->Strip() == strip
866 && hit->Track() == track) {
867 AliFMDDebug(1, ("already had a hit in FMD%d%c[%2d,%3d] for track # %d,"
868 " adding energy (%f) to that hit (%f) -> %f",
869 detector, ring, sector, strip, track, edep, hit->Edep(),
870 hit->Edep() + edep));
871 hit->SetEdep(hit->Edep() + edep);
875 // If hit wasn't already registered, do so know.
876 hit = new (a[fNhits]) AliFMDHit(fIshunt, track, detector, ring, sector,
877 strip, x, y, z, px, py, pz, edep, pdg, t,
883 //____________________________________________________________________
885 AliFMD::AddDigit(Int_t* digits, Int_t*)
887 // Add a digit to the Digit tree
891 // digits[0] [UShort_t] Detector #
892 // digits[1] [Char_t] Ring ID
893 // digits[2] [UShort_t] Sector #
894 // digits[3] [UShort_t] Strip #
895 // digits[4] [UShort_t] ADC Count
896 // digits[5] [Short_t] ADC Count, -1 if not used
897 // digits[6] [Short_t] ADC Count, -1 if not used
899 AddDigitByFields(UShort_t(digits[0]), // Detector #
900 Char_t(digits[1]), // Ring ID
901 UShort_t(digits[2]), // Sector #
902 UShort_t(digits[3]), // Strip #
903 UShort_t(digits[4]), // ADC Count1
904 Short_t(digits[5]), // ADC Count2
905 Short_t(digits[6]), // ADC Count3
909 //____________________________________________________________________
911 AliFMD::AddDigitByFields(UShort_t detector,
920 // add a real digit - as coming from data
924 // detector Detector # (1, 2, or 3)
925 // ring Ring ID ('I' or 'O')
926 // sector Sector # (For inner/outer rings: 0-19/0-39)
927 // strip Strip # (For inner/outer rings: 0-511/0-255)
928 // count1 ADC count (a 10-bit word)
929 // count2 ADC count (a 10-bit word), or -1 if not used
930 // count3 ADC count (a 10-bit word), or -1 if not used
931 TClonesArray& a = *(DigitsArray());
934 AliFMDDigit(detector, ring, sector, strip, count1, count2, count3, count4);
935 AliFMDDebug(15, ("Adding digit # %5d/%5d for FMD%d%c[%2d,%3d]=(%d,%d,%d,%d)",
936 fNdigits-1, a.GetEntriesFast(),
937 detector, ring, sector, strip,
938 count1, count2, count3, count4));
942 //____________________________________________________________________
944 AliFMD::AddSDigit(Int_t* digits)
946 // Add a digit to the SDigit tree
950 // digits[0] [UShort_t] Detector #
951 // digits[1] [Char_t] Ring ID
952 // digits[2] [UShort_t] Sector #
953 // digits[3] [UShort_t] Strip #
954 // digits[4] [Float_t] Total energy deposited
955 // digits[5] [UShort_t] ADC Count
956 // digits[6] [Short_t] ADC Count, -1 if not used
957 // digits[7] [Short_t] ADC Count, -1 if not used
959 AddSDigitByFields(UShort_t(digits[0]), // Detector #
960 Char_t(digits[1]), // Ring ID
961 UShort_t(digits[2]), // Sector #
962 UShort_t(digits[3]), // Strip #
963 Float_t(digits[4]), // Edep
964 UShort_t(digits[5]), // ADC Count1
965 Short_t(digits[6]), // ADC Count2
966 Short_t(digits[7]), // ADC Count3
967 Short_t(digits[8]), // ADC Count4
968 UShort_t(digits[9]), // N particles
969 UShort_t(digits[10])); // N primaries
973 //____________________________________________________________________
975 AliFMD::AddSDigitByFields(UShort_t detector,
987 // add a summable digit
991 // detector Detector # (1, 2, or 3)
992 // ring Ring ID ('I' or 'O')
993 // sector Sector # (For inner/outer rings: 0-19/0-39)
994 // strip Strip # (For inner/outer rings: 0-511/0-255)
995 // edep Total energy deposited
996 // count1 ADC count (a 10-bit word)
997 // count2 ADC count (a 10-bit word), or -1 if not used
998 // count3 ADC count (a 10-bit word), or -1 if not used
1000 TClonesArray& a = *(SDigitsArray());
1001 // AliFMDDebug(0, ("Adding sdigit # %d", fNsdigits));
1003 new (a[fNsdigits++])
1004 AliFMDSDigit(detector, ring, sector, strip, edep,
1005 count1, count2, count3, count4, ntot, nprim);
1008 //____________________________________________________________________
1010 AliFMD::ResetSDigits()
1012 // Reset number of digits and the digits array for this detector.
1015 if (fSDigits) fSDigits->Clear();
1019 //____________________________________________________________________
1023 // Initialize hit array if not already, and return pointer to it.
1025 fHits = new TClonesArray("AliFMDHit", 1000);
1031 //____________________________________________________________________
1033 AliFMD::DigitsArray()
1035 // Initialize digit array if not already, and return pointer to it.
1037 fDigits = new TClonesArray("AliFMDDigit", 1000);
1043 //____________________________________________________________________
1045 AliFMD::SDigitsArray()
1047 // Initialize digit array if not already, and return pointer to it.
1049 fSDigits = new TClonesArray("AliFMDSDigit", 1000);
1055 //====================================================================
1059 //____________________________________________________________________
1061 AliFMD::Hits2Digits()
1063 // Create AliFMDDigit's from AliFMDHit's. This is done by making a
1064 // AliFMDDigitizer, and executing that code.
1066 AliFMDHitDigitizer digitizer(this, AliFMDHitDigitizer::kDigits);
1071 //____________________________________________________________________
1073 AliFMD::Hits2SDigits()
1075 // Create AliFMDSDigit's from AliFMDHit's. This is done by creating
1076 // an AliFMDSDigitizer object, and executing it.
1078 AliFMDHitDigitizer digitizer(this, AliFMDHitDigitizer::kSDigits);
1084 //____________________________________________________________________
1086 AliFMD::CreateDigitizer(AliRunDigitizer* manager) const
1088 // Create a digitizer object
1090 /* This is what we probably _should_ do */
1091 AliFMDBaseDigitizer* digitizer = 0;
1093 #ifdef USE_SSDIGITIZER
1094 digitizer = new AliFMDSSDigitizer(manager);
1096 /* This is what we actually do, and will work */
1098 AliInfo("SDigit->Digit conversion not really supported, "
1099 "doing Hit->Digit conversion instead");
1101 digitizer = new AliFMDDigitizer(manager);
1106 //====================================================================
1108 // Raw data simulation
1110 //__________________________________________________________________
1112 AliFMD::Digits2Raw()
1114 // Turn digits into raw data.
1116 // This uses the class AliFMDRawWriter to do the job. Please refer
1117 // to that class for more information.
1118 AliFMDRawWriter writer(this);
1123 //====================================================================
1127 //__________________________________________________________________
1129 AliFMD::Browse(TBrowser* b)
1131 // Browse this object.
1133 AliFMDDebug(30, ("\tBrowsing the FMD"));
1134 AliDetector::Browse(b);
1135 b->Add(AliFMDGeometry::Instance());
1138 //____________________________________________________________________
1140 AliFMD::AddAlignableVolumes() const
1143 // Create entries for alignable volumes associating the symbolic volume
1144 // name with the corresponding volume path. Needs to be syncronized with
1145 // eventual changes in the geometry.
1147 // This code was made by Raffaele Grosso <rgrosso@mail.cern.ch>. I
1148 // (cholm) will probably want to change it. For one, I think it
1149 // should be the job of the geometry manager to deal with this.
1150 AliInfo("Add FMD alignable volumes");
1151 AliFMDGeometry::Instance()->SetAlignableVolumes();
1153 for(size_t f = 1; f <= 3; f++){ // Detector 1,2,3
1154 for(size_t tb = 0; tb <2 ; tb++){ // Top/Bottom
1155 char stb = tb == 0 ? 'T' : 'B';
1156 unsigned min = tb == 0 ? 0 : 5;
1158 TString halfVol(Form("/ALIC_1/F%dM%c_%d", f, stb, f));
1159 TString halfSym(halfVol);
1160 if(!gGeoManager->SetAlignableEntry(halfSym.Data(),halfVol.Data()))
1161 AliFatal(Form("Alignable entry %s not created. "
1162 "Volume path %s not valid",
1163 halfSym.Data(),halfVol.Data()));
1164 for(size_t io = 0; io < 2; io++){ // inner, outer
1165 if (f==1 && io==1) continue; // Only one ring in FMD1
1166 if(tb == 1 && io==1) min=10;
1167 char sio = (io == 0 ? 'I' : 'O');
1168 unsigned nio = (io == 0 ? 3 : 9);
1169 unsigned max = (io == 0 ? 5 : 10) + min;
1171 for(size_t i = min; i < max; i++) { // Modules
1172 TString modVol(Form("%s/F%c%cV_7%d/F%cSE_%d", halfVol.Data(),
1173 sio, stb, nio, sio, i));
1174 TString modSym(modVol);
1175 if(!gGeoManager->SetAlignableEntry(modSym.Data(),modVol.Data()))
1176 AliFatal(Form("Alignable entry %s not created. "
1177 "Volume path %s not valid",
1178 modSym.Data(), modVol.Data()));
1185 //___________________________________________________________________