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4c039060 1/**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
6 * *
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 **************************************************************************/
88cb7938 15/* $Id$ */
c2fc1258 16/** @file AliFMD.cxx
17 @author Christian Holm Christensen <cholm@nbi.dk>
18 @date Sun Mar 26 17:59:18 2006
19 @brief Implementation of AliFMD base class
20*/
e802be3e 21//____________________________________________________________________
4347b38f 22//
37c4363a 23// Forward Multiplicity Detector based on Silicon wafers. This class
9f662337 24// is the driver for especially simulation.
25//
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.
37c4363a 28//
29// This is the base class for all FMD manager classes.
30//
4347b38f 31// The actual code is done by various separate classes. Below is
32// diagram showing the relationship between the various FMD classes
1a1fdef7 33// that handles the simulation
4347b38f 34//
35//
36// +----------+ +----------+
1a1fdef7 37// | AliFMDv1 | | AliFMDv0 |
4347b38f 38// +----------+ +----------+
1a1fdef7 39// | | +-----------------+
40// +----+--------------+ +--| AliFMDDigitizer |
41// | | +-----------------+
42// | +---------------------+ |
4ac75127 43// | +--| AliFMDBaseDigitizer |<--+
1a1fdef7 44// V 1 | +---------------------+ |
45// +--------+<>--+ | +------------------+
46// | AliFMD | +--| AliFMDSDigitizer |
47// +--------+<>--+ +------------------+
9f662337 48// 1 | +---------------------+
49// +--| AliFMDReconstructor |
50// +---------------------+
4347b38f 51//
52// * AliFMD
53// This defines the interface for the various parts of AliROOT that
1a1fdef7 54// uses the FMD, like AliFMDSimulator, AliFMDDigitizer,
55// AliFMDReconstructor, and so on.
56//
57// * AliFMDv0
58// This is a concrete implementation of the AliFMD interface.
59// It is the responsibility of this class to create the FMD
60// geometry.
4347b38f 61//
62// * AliFMDv1
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.
67//
1a1fdef7 68// * AliFMDSimulator
69// This is the base class for the FMD simulation tasks. The
70// simulator tasks are responsible to implment the geoemtry, and
71// process hits.
4347b38f 72//
9f662337 73// * AliFMDReconstructor
74// This is a concrete implementation of the AliReconstructor that
75// reconstructs pseudo-inclusive-multiplicities from digits (raw or
76// from simulation)
37c4363a 77//
9f662337 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.
37c4363a 82//
fe4da5cc 83
56b1929b 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 "..."'
f7a1cc68 87#include <TBrowser.h> // ROOT_TBrowser
56b1929b 88#include <TClonesArray.h> // ROOT_TClonesArray
f7a1cc68 89#include <TGeoGlobalMagField.h> // ROOT_TGeoGlobalMagField
90#include <TGeoManager.h> // ROOT_TGeoManager
1a1fdef7 91#include <TRotMatrix.h> // ROOT_TRotMatrix
56b1929b 92#include <TTree.h> // ROOT_TTree
02a27b50 93#include <TVector2.h> // ROOT_TVector2
f7a1cc68 94#include <TVirtualMC.h> // ROOT_TVirtualMC
95#include <cmath> // __CMATH__
56b1929b 96
f21fc003 97#include <AliDigitizationInput.h> // ALIRUNDIGITIZER_H
56b1929b 98#include <AliLoader.h> // ALILOADER_H
99#include <AliRun.h> // ALIRUN_H
100#include <AliMC.h> // ALIMC_H
02a27b50 101#include <AliMagF.h> // ALIMAGF_H
f95a63c4 102// #include <AliLog.h> // ALILOG_H
103#include "AliFMDDebug.h" // Better debug macros
e802be3e 104#include "AliFMD.h" // ALIFMD_H
02a27b50 105#include "AliFMDDigit.h" // ALIFMDDIGIT_H
106#include "AliFMDSDigit.h" // ALIFMDSDIGIT_H
e802be3e 107#include "AliFMDHit.h" // ALIFMDHIT_H
1a1fdef7 108#include "AliFMDGeometry.h" // ALIFMDGEOMETRY_H
109#include "AliFMDDetector.h" // ALIFMDDETECTOR_H
110#include "AliFMDRing.h" // ALIFMDRING_H
e802be3e 111#include "AliFMDDigitizer.h" // ALIFMDDIGITIZER_H
ef8e8623 112#include "AliFMDHitDigitizer.h" // ALIFMDSDIGITIZER_H
42f1b2f5 113// #define USE_SSDIGITIZER
ef8e8623 114//#ifdef USE_SSDIGITIZER
115//# include "AliFMDSSDigitizer.h" // ALIFMDSDIGITIZER_H
116//#endif
02a27b50 117// #include "AliFMDGeometryBuilder.h"
e802be3e 118#include "AliFMDRawWriter.h" // ALIFMDRAWWRITER_H
faf80567 119#include "AliFMDRawReader.h" // ALIFMDRAWREADER_H
a91c42d1 120#include "AliTrackReference.h"
121#include "AliFMDStripIndex.h"
e6c798e6 122#include "AliFMDEncodedEdx.h"
faf80567 123#include "AliFMDParameters.h"
124#include "AliFMDReconstructor.h"
88cb7938 125
4347b38f 126//____________________________________________________________________
925e6570 127ClassImp(AliFMD)
1a1fdef7 128#if 0
129 ; // This is to keep Emacs from indenting the next line
130#endif
7e54281f 131
4347b38f 132//____________________________________________________________________
133AliFMD::AliFMD()
90da4514 134 : AliDetector(),
135 fSDigits(0),
afddaa11 136 fNsdigits(0),
1a1fdef7 137 fDetailed(kTRUE),
b5ee4425 138 fUseOld(kFALSE),
139 fUseAssembly(kTRUE),
140 fBad(0)
fe4da5cc 141{
142 //
143 // Default constructor for class AliFMD
144 //
f95a63c4 145 AliFMDDebug(10, ("\tDefault CTOR"));
4ac75127 146 fHits = 0;
147 fDigits = 0;
148 fIshunt = 0;
75609cab 149 // fBad = new TClonesArray("AliFMDHit");
fe4da5cc 150}
dc8af42e 151
4347b38f 152//____________________________________________________________________
1a1fdef7 153AliFMD::AliFMD(const char *name, const char *title)
4347b38f 154 : AliDetector (name, title),
afddaa11 155 fSDigits(0),
156 fNsdigits(0),
1a1fdef7 157 fDetailed(kTRUE),
b5ee4425 158 fUseOld(kFALSE),
159 fUseAssembly(kFALSE),
54e415a8 160 fBad(0)
fe4da5cc 161{
162 //
163 // Standard constructor for Forward Multiplicity Detector
164 //
f95a63c4 165 AliFMDDebug(10, ("\tStandard CTOR"));
75609cab 166 // fBad = new TClonesArray("AliFMDHit");
54240c8d 167
fe4da5cc 168 // Initialise Hit array
75609cab 169 // HitsArray();
170 // gAlice->GetMCApp()->AddHitList(fHits);
d1280e40 171
4347b38f 172 // (S)Digits for the detectors disk
75609cab 173 // DigitsArray();
174 // SDigitsArray();
4347b38f 175
176 // CHC: What is this?
dc8af42e 177 fIshunt = 0;
e939a978 178 //PH SetMarkerColor(kRed);
179 //PH SetLineColor(kYellow);
fe4da5cc 180}
d28dcc0d 181
4347b38f 182//____________________________________________________________________
dc8af42e 183AliFMD::~AliFMD ()
d28dcc0d 184{
4347b38f 185 // Destructor for base class AliFMD
186 if (fHits) {
187 fHits->Delete();
188 delete fHits;
189 fHits = 0;
190 }
191 if (fDigits) {
192 fDigits->Delete();
193 delete fDigits;
194 fDigits = 0;
195 }
196 if (fSDigits) {
197 fSDigits->Delete();
198 delete fSDigits;
199 fSDigits = 0;
200 }
54e415a8 201 if (fBad) {
202 fBad->Delete();
203 delete fBad;
204 fBad = 0;
205 }
4347b38f 206}
207
56b1929b 208
4347b38f 209//====================================================================
210//
211// GEometry ANd Traking
212//
213//____________________________________________________________________
214void
215AliFMD::CreateGeometry()
216{
4347b38f 217 //
37c4363a 218 // Create the geometry of Forward Multiplicity Detector. The actual
9f662337 219 // construction of the geometry is delegated to the class
220 // AliFMDGeometryBuilder, invoked by the singleton manager
221 // AliFMDGeometry.
1a1fdef7 222 //
54e415a8 223 AliFMDGeometry* fmd = AliFMDGeometry::Instance();
54e415a8 224 fmd->SetDetailed(fDetailed);
225 fmd->UseAssembly(fUseAssembly);
226 fmd->Build();
4347b38f 227}
228
229//____________________________________________________________________
230void AliFMD::CreateMaterials()
231{
54e415a8 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
4347b38f 236 //
54e415a8 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)
244 //
9f662337 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
250 // really that easy.
251 //
f95a63c4 252 AliFMDDebug(10, ("\tCreating materials"));
54e415a8 253 // Get pointer to geometry singleton object.
254 AliFMDGeometry* geometry = AliFMDGeometry::Instance();
255 geometry->Init();
256#if 0
257 if (gGeoManager && gGeoManager->GetMedium("FMD Si$")) {
258 // We need to figure out the some stuff about the geometry
259 fmd->ExtractGeomInfo();
260 return;
261 }
262#endif
54e415a8 263 Int_t id;
264 Double_t a = 0;
265 Double_t z = 0;
266 Double_t density = 0;
267 Double_t radiationLength = 0;
268 Double_t absorbtionLength = 999;
f7a1cc68 269 Int_t fieldType = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Integ(); // Field type
270 Double_t maxField = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Max(); // Field max.
54e415a8 271 Double_t maxBending = 0; // Max Angle
272 Double_t maxStepSize = 0.001; // Max step size
273 Double_t maxEnergyLoss = 1; // Max Delta E
274 Double_t precision = 0.001; // Precision
275 Double_t minStepSize = 0.001; // Minimum step size
276
277 // Silicon
278 a = 28.0855;
279 z = 14.;
280 density = geometry->GetSiDensity();
281 radiationLength = 9.36;
282 maxBending = 1;
283 maxStepSize = .001;
284 precision = .001;
285 minStepSize = .001;
286 id = kSiId;
287 AliMaterial(id, "Si$", a, z, density, radiationLength, absorbtionLength);
288 AliMedium(kSiId, "Si$", id,1,fieldType,maxField,maxBending,
289 maxStepSize,maxEnergyLoss,precision,minStepSize);
290
291
292 // Carbon
293 a = 12.011;
294 z = 6.;
295 density = 2.265;
296 radiationLength = 18.8;
297 maxBending = 10;
298 maxStepSize = .01;
299 precision = .003;
300 minStepSize = .003;
301 id = kCarbonId;
302 AliMaterial(id, "Carbon$", a, z, density, radiationLength, absorbtionLength);
303 AliMedium(kCarbonId, "Carbon$", id,0,fieldType,maxField,maxBending,
304 maxStepSize,maxEnergyLoss,precision,minStepSize);
305
306 // Aluminum
307 a = 26.981539;
308 z = 13.;
309 density = 2.7;
310 radiationLength = 8.9;
311 id = kAlId;
312 AliMaterial(id, "Aluminum$",a,z, density, radiationLength, absorbtionLength);
313 AliMedium(kAlId, "Aluminum$", id, 0, fieldType, maxField, maxBending,
314 maxStepSize, maxEnergyLoss, precision, minStepSize);
315
316
317 // Copper
318 a = 63.546;
319 z = 29;
320 density = 8.96;
321 radiationLength = 1.43;
322 id = kCopperId;
323 AliMaterial(id, "Copper$",
324 a, z, density, radiationLength, absorbtionLength);
325 AliMedium(kCopperId, "Copper$", id, 0, fieldType, maxField, maxBending,
326 maxStepSize, maxEnergyLoss, precision, minStepSize);
327
328
329 // Silicon chip
330 {
331 Float_t as[] = { 12.0107, 14.0067, 15.9994,
332 1.00794, 28.0855, 107.8682 };
333 Float_t zs[] = { 6., 7., 8.,
334 1., 14., 47. };
335 Float_t ws[] = { 0.039730642, 0.001396798, 0.01169634,
336 0.004367771, 0.844665, 0.09814344903 };
337 density = 2.36436;
338 maxBending = 10;
339 maxStepSize = .01;
340 precision = .003;
341 minStepSize = .003;
342 id = kSiChipId;
343 AliMixture(id, "Si Chip$", as, zs, density, 6, ws);
344 AliMedium(kSiChipId, "Si Chip$", id, 0, fieldType, maxField, maxBending,
345 maxStepSize, maxEnergyLoss, precision, minStepSize);
346 }
347
348 // Kaption
349 {
350 Float_t as[] = { 1.00794, 12.0107, 14.010, 15.9994};
351 Float_t zs[] = { 1., 6., 7., 8.};
352 Float_t ws[] = { 0.026362, 0.69113, 0.07327, 0.209235};
353 density = 1.42;
354 maxBending = 1;
355 maxStepSize = .001;
356 precision = .001;
357 minStepSize = .001;
358 id = kKaptonId;
359 AliMixture(id, "Kaption$", as, zs, density, 4, ws);
360 AliMedium(kKaptonId, "Kaption$", id,0,fieldType,maxField,maxBending,
361 maxStepSize,maxEnergyLoss,precision,minStepSize);
362 }
363
364 // Air
365 {
366 Float_t as[] = { 12.0107, 14.0067, 15.9994, 39.948 };
367 Float_t zs[] = { 6., 7., 8., 18. };
368 Float_t ws[] = { 0.000124, 0.755267, 0.231781, 0.012827 };
369 density = .00120479;
370 maxBending = 1;
371 maxStepSize = .001;
372 precision = .001;
373 minStepSize = .001;
374 id = kAirId;
375 AliMixture(id, "Air$", as, zs, density, 4, ws);
376 AliMedium(kAirId, "Air$", id,0,fieldType,maxField,maxBending,
377 maxStepSize,maxEnergyLoss,precision,minStepSize);
378 }
379
380 // PCB
381 {
382 Float_t zs[] = { 14., 20., 13., 12.,
383 5., 22., 11., 19.,
384 26., 9., 8., 6.,
385 7., 1.};
386 Float_t as[] = { 28.0855, 40.078, 26.981538, 24.305,
387 10.811, 47.867, 22.98977, 39.0983,
388 55.845, 18.9984, 15.9994, 12.0107,
389 14.0067, 1.00794};
390 Float_t ws[] = { 0.15144894, 0.08147477, 0.04128158, 0.00904554,
391 0.01397570, 0.00287685, 0.00445114, 0.00498089,
392 0.00209828, 0.00420000, 0.36043788, 0.27529426,
393 0.01415852, 0.03427566};
394 density = 1.8;
395 maxBending = 1;
396 maxStepSize = .001;
397 precision = .001;
398 minStepSize = .001;
399 id = kPcbId;
400 AliMixture(id, "PCB$", as, zs, density, 14, ws);
401 AliMedium(kPcbId, "PCB$", id,0,fieldType,maxField,maxBending,
402 maxStepSize,maxEnergyLoss,precision,minStepSize);
403 }
404
d98fbfa5 405 // Stainless steel
406 {
407 Float_t as[] = { 55.847, 51.9961, 58.6934, 28.0855 };
408 Float_t zs[] = { 26., 24., 28., 14. };
409 Float_t ws[] = { .715, .18, .1, .005 };
410 density = 7.88;
411 id = kSteelId;
412 AliMixture(id, "Steel$", as, zs, density, 4, ws);
413 AliMedium(kSteelId, "Steel$", id, 0, fieldType, maxField, maxBending,
414 maxStepSize, maxEnergyLoss, precision, minStepSize);
415 }
54e415a8 416 // Plastic
417 {
418 Float_t as[] = { 1.01, 12.01 };
419 Float_t zs[] = { 1., 6. };
420 Float_t ws[] = { 1., 1. };
421 density = 1.03;
422 maxBending = 10;
423 maxStepSize = .01;
424 precision = .003;
425 minStepSize = .003;
426 id = kPlasticId;
427 AliMixture(id, "Plastic$", as, zs, density, -2, ws);
428 AliMedium(kPlasticId, "Plastic$", id,0,fieldType,maxField,maxBending,
429 maxStepSize,maxEnergyLoss,precision,minStepSize);
430 }
d98fbfa5 431
d28dcc0d 432}
dc8af42e 433
5fb9f417 434#if 0
40fa2e58 435//____________________________________________________________________
436void
437AliFMD::SetTrackingParameters(Int_t imed,
438 Float_t gamma,
439 Float_t electron,
440 Float_t neutral_hadron,
441 Float_t charged_hadron,
442 Float_t muon,
443 Float_t electron_bremstrahlung,
444 Float_t muon__bremstrahlung,
445 Float_t electron_delta,
446 Float_t muon_delta,
447 Float_t muon_pair,
448 Int_t annihilation,
449 Int_t bremstrahlung,
450 Int_t compton_scattering,
451 Int_t decay,
452 Int_t delta_ray,
453 Int_t hadronic,
454 Int_t energy_loss,
455 Int_t multiple_scattering,
456 Int_t pair_production,
457 Int_t photon_production,
458 Int_t rayleigh_scattering)
459{
5fb9f417 460 // Disabled by request of FCA, kept for reference only
2942f542 461 if (!TVirtualMC::GetMC()) return;
40fa2e58 462 TArrayI& idtmed = *(GetIdtmed());
463 Int_t iimed = idtmed[imed];
2942f542 464 // TVirtualMC::GetMC()->Gstpar(iimed, "CUTGAM", gamma);
465 // TVirtualMC::GetMC()->Gstpar(iimed, "CUTELE", electron);
466 // TVirtualMC::GetMC()->Gstpar(iimed, "CUTNEU", neutral_hadron);
467 // TVirtualMC::GetMC()->Gstpar(iimed, "CUTHAD", charged_hadron);
468 // TVirtualMC::GetMC()->Gstpar(iimed, "CUTMUO", muon);
469 // TVirtualMC::GetMC()->Gstpar(iimed, "BCUTE", electron_bremstrahlung);
470 // TVirtualMC::GetMC()->Gstpar(iimed, "BCUTM", muon__bremstrahlung);
471 // TVirtualMC::GetMC()->Gstpar(iimed, "DCUTE", electron_delta);
472 // TVirtualMC::GetMC()->Gstpar(iimed, "DCUTM", muon_delta);
473 // TVirtualMC::GetMC()->Gstpar(iimed, "PPCUTM", muon_pair);
474 // TVirtualMC::GetMC()->Gstpar(iimed, "ANNI", Float_t(annihilation));
475 // TVirtualMC::GetMC()->Gstpar(iimed, "BREM", Float_t(bremstrahlung));
476 // TVirtualMC::GetMC()->Gstpar(iimed, "COMP", Float_t(compton_scattering));
477 // TVirtualMC::GetMC()->Gstpar(iimed, "DCAY", Float_t(decay));
478 // TVirtualMC::GetMC()->Gstpar(iimed, "DRAY", Float_t(delta_ray));
479 // TVirtualMC::GetMC()->Gstpar(iimed, "HADR", Float_t(hadronic));
480 // TVirtualMC::GetMC()->Gstpar(iimed, "LOSS", Float_t(energy_loss));
481 // TVirtualMC::GetMC()->Gstpar(iimed, "MULS", Float_t(multiple_scattering));
482 // TVirtualMC::GetMC()->Gstpar(iimed, "PAIR", Float_t(pair_production));
483 // TVirtualMC::GetMC()->Gstpar(iimed, "PHOT", Float_t(photon_production));
484 // TVirtualMC::GetMC()->Gstpar(iimed, "RAYL", Float_t(rayleigh_scattering));
40fa2e58 485}
5fb9f417 486#endif
40fa2e58 487
4347b38f 488//____________________________________________________________________
489void
490AliFMD::Init()
bf000c32 491{
9f662337 492 // Initialize the detector
493 //
f95a63c4 494 AliFMDDebug(1, ("Initialising FMD detector object"));
45855cd7 495 TVirtualMC* mc = TVirtualMC::GetMC();
496 AliFMDGeometry* fmd = AliFMDGeometry::Instance();
53a1201d 497 TArrayI actGeo = fmd->ActiveIds();
498 bool valid = true;
499 if (actGeo.fN <= 0) valid = false;
500 else {
501 for (int i = 0; i < actGeo.fN; i++) {
502 if (actGeo[i] < 0) {
503 valid = false;
504 break;
505 }
506 }
507 }
508 if (!valid) {
509 AliFMDDebug(1, ("Extracting geometry info from loaded geometry"));
510 fmd->ExtractGeomInfo();
511 actGeo = fmd->ActiveIds();
512 }
45855cd7 513 TArrayI actVmc(actGeo.fN);
514 for (Int_t i = 0; i < actGeo.fN; i++) {
53a1201d 515 if (actGeo[i] < 0) {
516 AliError(Form("Invalid id: %d", actGeo[i]));
517 continue;
518 }
45855cd7 519 TGeoVolume *sens = gGeoManager->GetVolume(actGeo[i]);
520 if (!sens) {
521 AliError(Form("No TGeo volume for sensitive volume ID=%d",actGeo[i]));
522 continue;
523 }
524 actVmc[i] = mc->VolId(sens->GetName());
525 AliFMDDebug(1, ("Active vol id # %d: %d changed to %d",
526 i, actGeo[i], actVmc[i]));
527 }
528 fmd->SetActive(actVmc.fArray, actVmc.fN);
d760ea03 529 // fmd->InitTransformations();
bf000c32 530}
dc8af42e 531
54240c8d 532//____________________________________________________________________
533void
534AliFMD::FinishEvent()
535{
9f662337 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.
538 //
bf000c32 539 if (AliLog::GetDebugLevel("FMD", "AliFMD") < 10) return;
54e415a8 540 if (fBad && fBad->GetEntries() > 0) {
a828379a 541 AliWarning(Form("got %d 'bad' hits", fBad->GetEntries()));
54e415a8 542 TIter next(fBad);
543 AliFMDHit* hit;
bf000c32 544 while ((hit = static_cast<AliFMDHit*>(next()))) hit->Print("D");
54e415a8 545 fBad->Clear();
546 }
54240c8d 547}
548
549
dc8af42e 550
4347b38f 551//====================================================================
552//
553// Hit and Digit managment
554//
555//____________________________________________________________________
556void
557AliFMD::MakeBranch(Option_t * option)
558{
559 // Create Tree branches for the FMD.
37c4363a 560 //
561 // Options:
562 //
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
566 //
4347b38f 567 const Int_t kBufferSize = 16000;
568 TString branchname(GetName());
569 TString opt(option);
570
571 if (opt.Contains("H", TString::kIgnoreCase)) {
572 HitsArray();
573 AliDetector::MakeBranch(option);
574 }
575 if (opt.Contains("D", TString::kIgnoreCase)) {
576 DigitsArray();
577 MakeBranchInTree(fLoader->TreeD(), branchname.Data(),
578 &fDigits, kBufferSize, 0);
579 }
580 if (opt.Contains("S", TString::kIgnoreCase)) {
581 SDigitsArray();
582 MakeBranchInTree(fLoader->TreeS(), branchname.Data(),
583 &fSDigits, kBufferSize, 0);
584 }
585}
586
587//____________________________________________________________________
588void
589AliFMD::SetTreeAddress()
590{
afddaa11 591 // Set branch address for the Hits, Digits, and SDigits Tree.
4347b38f 592 if (fLoader->TreeH()) HitsArray();
593 AliDetector::SetTreeAddress();
594
595 TTree *treeD = fLoader->TreeD();
596 if (treeD) {
597 DigitsArray();
598 TBranch* branch = treeD->GetBranch ("FMD");
599 if (branch) branch->SetAddress(&fDigits);
600 }
601
602 TTree *treeS = fLoader->TreeS();
603 if (treeS) {
604 SDigitsArray();
605 TBranch* branch = treeS->GetBranch ("FMD");
606 if (branch) branch->SetAddress(&fSDigits);
607 }
608}
609
4347b38f 610//____________________________________________________________________
611void
612AliFMD::SetHitsAddressBranch(TBranch *b)
b9a2d5e4 613{
37c4363a 614 // Set the TClonesArray to read hits into.
4347b38f 615 b->SetAddress(&fHits);
b9a2d5e4 616}
42f1b2f5 617//____________________________________________________________________
618void
619AliFMD::SetSDigitsAddressBranch(TBranch *b)
620{
621 // Set the TClonesArray to read hits into.
622 b->SetAddress(&fSDigits);
623}
b9a2d5e4 624
4347b38f 625//____________________________________________________________________
626void
627AliFMD::AddHit(Int_t track, Int_t *vol, Float_t *hits)
628{
629 // Add a hit to the hits tree
630 //
631 // The information of the two arrays are decoded as
632 //
633 // Parameters
634 // track Track #
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 #
37c4363a 647 // hits[9] [Float_t ] Time when the track hit
648 //
649 //
69b696b9 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 #
655 hits[0], // X
656 hits[1], // Y
657 hits[2], // Z
658 hits[3], // Px
659 hits[4], // Py
660 hits[5], // Pz
661 hits[6], // Energy loss
662 Int_t(hits[7]), // PDG
663 hits[8]); // Time
4347b38f 664}
665
666//____________________________________________________________________
54240c8d 667AliFMDHit*
69b696b9 668AliFMD::AddHitByFields(Int_t track,
669 UShort_t detector,
670 Char_t ring,
671 UShort_t sector,
672 UShort_t strip,
673 Float_t x,
674 Float_t y,
675 Float_t z,
676 Float_t px,
677 Float_t py,
678 Float_t pz,
679 Float_t edep,
680 Int_t pdg,
088f8e79 681 Float_t t,
682 Float_t l,
683 Bool_t stop)
b9a2d5e4 684{
4347b38f 685 // Add a hit to the list
dc8af42e 686 //
4347b38f 687 // Parameters:
688 //
689 // track Track #
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
088f8e79 703 // l Track length through the material.
704 // stop Whether track was stopped or disappeared
4347b38f 705 //
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.
ac4c3fbb 712 AliFMDHit* hit = 0;
4347b38f 713 for (Int_t i = 0; i < fNhits; i++) {
714 if (!a.At(i)) continue;
ac4c3fbb 715 hit = static_cast<AliFMDHit*>(a.At(i));
4347b38f 716 if (hit->Detector() == detector
717 && hit->Ring() == ring
718 && hit->Sector() == sector
719 && hit->Strip() == strip
720 && hit->Track() == track) {
f95a63c4 721 AliFMDDebug(1, ("already had a hit in FMD%d%c[%2d,%3d] for track # %d,"
8f6ee336 722 " adding energy (%f) to that hit (%f) -> %f",
723 detector, ring, sector, strip, track, edep, hit->Edep(),
724 hit->Edep() + edep));
4347b38f 725 hit->SetEdep(hit->Edep() + edep);
54240c8d 726 return hit;
4347b38f 727 }
728 }
729 // If hit wasn't already registered, do so know.
ac4c3fbb 730 hit = new (a[fNhits]) AliFMDHit(fIshunt, track, detector, ring, sector,
088f8e79 731 strip, x, y, z, px, py, pz, edep, pdg, t,
732 l, stop);
2942f542 733 // TVirtualMC::GetMC()->AddTrackReference(track, 12);
4347b38f 734 fNhits++;
a91c42d1 735
736 //Reference track
737
738 AliMC *mcApplication = (AliMC*)gAlice->GetMCApp();
739
75609cab 740 AliTrackReference* trackRef =
741 AddTrackReference(mcApplication->GetCurrentTrackNumber(),
742 AliTrackReference::kFMD);
e6c798e6 743 UInt_t stripId = AliFMDStripIndex::Pack(detector,ring,sector,strip);
744 UInt_t dedx = AliFMDEncodedEdx::Encode(edep, l);
a91c42d1 745
e6c798e6 746 trackRef->SetUserId((dedx << 19) | stripId);
747
a91c42d1 748
54240c8d 749 return hit;
b9a2d5e4 750}
fe4da5cc 751
4347b38f 752//____________________________________________________________________
753void
69b696b9 754AliFMD::AddDigit(Int_t* digits, Int_t*)
fe4da5cc 755{
4347b38f 756 // Add a digit to the Digit tree
757 //
758 // Paramters
fe4da5cc 759 //
4347b38f 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
767 //
69b696b9 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
2aeec17d 774 Short_t(digits[6]), // ADC Count3
775 Short_t(digits[7]));
4347b38f 776}
777
778//____________________________________________________________________
779void
faf80567 780AliFMD::AddDigitByFields(UShort_t detector,
781 Char_t ring,
782 UShort_t sector,
783 UShort_t strip,
784 UShort_t count1,
785 Short_t count2,
786 Short_t count3,
787 Short_t count4,
1ecfdbd8 788 UShort_t nrefs,
789 Int_t* refs)
4347b38f 790{
791 // add a real digit - as coming from data
792 //
793 // Parameters
fe4da5cc 794 //
4347b38f 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());
803
faf80567 804 AliFMDDebug(15, ("Adding digit # %5d/%5d for FMD%d%c[%2d,%3d]"
805 "=(%d,%d,%d,%d) with %d tracks",
f95a63c4 806 fNdigits-1, a.GetEntriesFast(),
2aeec17d 807 detector, ring, sector, strip,
1ecfdbd8 808 count1, count2, count3, count4, nrefs));
809 new (a[fNdigits++])
810 AliFMDDigit(detector, ring, sector, strip,
811 count1, count2, count3, count4, nrefs, refs);
f95a63c4 812
4347b38f 813}
814
815//____________________________________________________________________
816void
817AliFMD::AddSDigit(Int_t* digits)
818{
819 // Add a digit to the SDigit tree
820 //
821 // Paramters
b9a2d5e4 822 //
4347b38f 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
831 //
83ad576a 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
4347b38f 843}
844
845//____________________________________________________________________
846void
b2e6f0b0 847AliFMD::AddSDigitByFields(UShort_t detector,
848 Char_t ring,
849 UShort_t sector,
850 UShort_t strip,
851 Float_t edep,
852 UShort_t count1,
853 Short_t count2,
854 Short_t count3,
855 Short_t count4,
856 UShort_t ntot,
857 UShort_t nprim,
1ecfdbd8 858 Int_t* refs)
4347b38f 859{
860 // add a summable digit
861 //
862 // Parameters
b9a2d5e4 863 //
4347b38f 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
37c4363a 872 //
4347b38f 873 TClonesArray& a = *(SDigitsArray());
42f1b2f5 874 // AliFMDDebug(0, ("Adding sdigit # %d", fNsdigits));
4347b38f 875
1ecfdbd8 876 AliFMDDebug(15, ("Adding sdigit # %5d/%5d for FMD%d%c[%2d,%3d]"
a828379a 877 "=(%d,%d,%d,%d) with %d tracks %d primaries (%p)",
1ecfdbd8 878 fNsdigits-1, a.GetEntriesFast(),
879 detector, ring, sector, strip,
880 count1, count2, count3, count4, ntot, nprim, refs));
4347b38f 881 new (a[fNsdigits++])
2aeec17d 882 AliFMDSDigit(detector, ring, sector, strip, edep,
b2e6f0b0 883 count1, count2, count3, count4, ntot, nprim, refs);
fe4da5cc 884}
4347b38f 885
886//____________________________________________________________________
887void
888AliFMD::ResetSDigits()
d28dcc0d 889{
9f662337 890 // Reset number of digits and the digits array for this detector.
4347b38f 891 //
892 fNsdigits = 0;
893 if (fSDigits) fSDigits->Clear();
894}
895
896
897//____________________________________________________________________
898TClonesArray*
899AliFMD::HitsArray()
900{
901 // Initialize hit array if not already, and return pointer to it.
902 if (!fHits) {
903 fHits = new TClonesArray("AliFMDHit", 1000);
904 fNhits = 0;
75609cab 905 if (gAlice && gAlice->GetMCApp() && gAlice->GetMCApp()->GetHitLists())
906 gAlice->GetMCApp()->AddHitList(fHits);
4347b38f 907 }
908 return fHits;
909}
910
911//____________________________________________________________________
912TClonesArray*
913AliFMD::DigitsArray()
914{
915 // Initialize digit array if not already, and return pointer to it.
916 if (!fDigits) {
917 fDigits = new TClonesArray("AliFMDDigit", 1000);
918 fNdigits = 0;
919 }
920 return fDigits;
921}
922
923//____________________________________________________________________
924TClonesArray*
925AliFMD::SDigitsArray()
926{
927 // Initialize digit array if not already, and return pointer to it.
928 if (!fSDigits) {
929 fSDigits = new TClonesArray("AliFMDSDigit", 1000);
930 fNsdigits = 0;
931 }
932 return fSDigits;
933}
934
935//====================================================================
936//
937// Digitization
938//
939//____________________________________________________________________
940void
941AliFMD::Hits2Digits()
942{
37c4363a 943 // Create AliFMDDigit's from AliFMDHit's. This is done by making a
944 // AliFMDDigitizer, and executing that code.
945 //
ef8e8623 946 AliFMDHitDigitizer digitizer(this, AliFMDHitDigitizer::kDigits);
947 digitizer.Init();
f21fc003 948 digitizer.Digitize("");
4347b38f 949}
950
951//____________________________________________________________________
952void
953AliFMD::Hits2SDigits()
954{
37c4363a 955 // Create AliFMDSDigit's from AliFMDHit's. This is done by creating
956 // an AliFMDSDigitizer object, and executing it.
957 //
ef8e8623 958 AliFMDHitDigitizer digitizer(this, AliFMDHitDigitizer::kSDigits);
959 digitizer.Init();
f21fc003 960 digitizer.Digitize("");
4347b38f 961}
962
dc8af42e 963
4347b38f 964//____________________________________________________________________
965AliDigitizer*
f21fc003 966AliFMD::CreateDigitizer(AliDigitizationInput* digInput) const
4347b38f 967{
968 // Create a digitizer object
42f1b2f5 969
970 /* This is what we probably _should_ do */
971 AliFMDBaseDigitizer* digitizer = 0;
972
973#ifdef USE_SSDIGITIZER
f21fc003 974 digitizer = new AliFMDSSDigitizer(digInput);
42f1b2f5 975#else
976 /* This is what we actually do, and will work */
ef8e8623 977#if 0
42f1b2f5 978 AliInfo("SDigit->Digit conversion not really supported, "
979 "doing Hit->Digit conversion instead");
ef8e8623 980#endif
f21fc003 981 digitizer = new AliFMDDigitizer(digInput);
42f1b2f5 982#endif
983 return digitizer;
984}
b9a2d5e4 985
4347b38f 986//====================================================================
987//
988// Raw data simulation
989//
990//__________________________________________________________________
991void
992AliFMD::Digits2Raw()
993{
37c4363a 994 // Turn digits into raw data.
995 //
e802be3e 996 // This uses the class AliFMDRawWriter to do the job. Please refer
997 // to that class for more information.
998 AliFMDRawWriter writer(this);
999 writer.Exec();
b9a2d5e4 1000}
1001
faf80567 1002//====================================================================
1003//
1004// Raw data reading
1005//
1006//__________________________________________________________________
1007Bool_t
1008AliFMD::Raw2SDigits(AliRawReader* reader)
1009{
1010 // Turn digits into raw data.
1011 //
1012 // This uses the class AliFMDRawWriter to do the job. Please refer
1013 // to that class for more information.
1014 AliFMDParameters::Instance()->Init();
1015 MakeTree("S");
1016 MakeBranch("S");
1017
1018 TClonesArray* sdigits = SDigits();
1019 AliFMDReconstructor rec;
1020
1021 // The two boolean arguments
1022 // Make sdigits instead of digits
1023 // Subtract the pedestal off the signal
1024 rec.Digitize(reader, sdigits);
1025 //
1026 // Bool_t ret = fmdReader.ReadAdcs(sdigits, kTRUE, kTRUE);
1027 // sdigits->ls();
1028 UShort_t ns = sdigits->GetEntriesFast();
c20989b2 1029 if (AliLog::GetDebugLevel("FMD", 0) > 5) {
1030 for (UShort_t i = 0; i < ns; i++)
1031 sdigits->At(i)->Print("pl");
1032 }
faf80567 1033 AliFMDDebug(1, ("Got a total of %d SDigits", ns));
1034
1035 fLoader->TreeS()->Fill();
1036 ResetSDigits();
1037 fLoader->WriteSDigits("OVERWRITE");
1038
1039 return kTRUE;
1040}
1041
4347b38f 1042
1043//====================================================================
1044//
1045// Utility
1046//
1047//__________________________________________________________________
1048void
1049AliFMD::Browse(TBrowser* b)
1050{
37c4363a 1051 // Browse this object.
1052 //
f95a63c4 1053 AliFMDDebug(30, ("\tBrowsing the FMD"));
4347b38f 1054 AliDetector::Browse(b);
1a1fdef7 1055 b->Add(AliFMDGeometry::Instance());
4347b38f 1056}
1057
ee8a5fe6 1058//____________________________________________________________________
1059void
1060AliFMD::AddAlignableVolumes() const
1061{
1062 //
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.
1066 //
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.
901fdbcf 1070 AliInfo("Add FMD alignable volumes");
9de78b35 1071 AliFMDGeometry::Instance()->SetAlignableVolumes();
1072#if 0
ee8a5fe6 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;
1077
8b1c66f0 1078 TString halfVol(Form("/ALIC_1/F%dM%c_%d", f, stb, f));
ee8a5fe6 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
8b1c66f0 1086 if(tb == 1 && io==1) min=10;
1087 char sio = (io == 0 ? 'I' : 'O');
ee8a5fe6 1088 unsigned nio = (io == 0 ? 3 : 9);
1089 unsigned max = (io == 0 ? 5 : 10) + min;
1090
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()));
1099 }
1100 }
1101 }
1102 }
9de78b35 1103#endif
ee8a5fe6 1104}
4347b38f 1105//___________________________________________________________________
1106//
1107// EOF
1108//