1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
17 //_________________________________________________________________________
18 // Base Class for PHOS description:
19 // PHOS consists of a PbWO4 calorimeter (EMCA) and a gazeous charged
20 // particles detector (CPV or PPSD).
21 // The only provided method here is CreateMaterials,
22 // which defines the materials common to all PHOS versions.
24 //*-- Author: Laurent Aphecetche & Yves Schutz (SUBATECH)
25 //////////////////////////////////////////////////////////////////////////////
28 // --- ROOT system ---
32 #include <TVirtualMC.h>
34 // --- Standard library ---
36 // --- AliRoot header files ---
38 #include "AliESDtrack.h"
41 #include "AliPHOSGetter.h"
42 #include "AliPHOSQAChecker.h"
44 #include "AliPHOSDigitizer.h"
45 #include "AliPHOSSDigitizer.h"
46 #include "AliPHOSReconstructor.h"
48 //____________________________________________________________________________
49 AliPHOS:: AliPHOS() : AliDetector()
58 //____________________________________________________________________________
59 AliPHOS::AliPHOS(const char* name, const char* title): AliDetector(name, title)
61 // ctor : title is used to identify the layout
68 //____________________________________________________________________________
74 //____________________________________________________________________________
75 void AliPHOS::Copy(AliPHOS & phos)
78 // fQATask = AliPHOSQAChecker::Copy(*(phos.fQATask)) ;
79 phos.fTreeQA = fTreeQA->CloneTree() ;
82 //____________________________________________________________________________
83 AliDigitizer* AliPHOS::CreateDigitizer(AliRunDigitizer* manager) const
85 return new AliPHOSDigitizer(manager);
88 //____________________________________________________________________________
89 void AliPHOS::CreateMaterials()
91 // Definitions of materials to build PHOS and associated tracking media.
92 // media number in idtmed are 699 to 798.
94 // --- The PbWO4 crystals ---
95 Float_t aX[3] = {207.19, 183.85, 16.0} ;
96 Float_t zX[3] = {82.0, 74.0, 8.0} ;
97 Float_t wX[3] = {1.0, 1.0, 4.0} ;
100 AliMixture(0, "PbWO4$", aX, zX, dX, -3, wX) ;
103 // --- The polysterene scintillator (CH) ---
104 Float_t aP[2] = {12.011, 1.00794} ;
105 Float_t zP[2] = {6.0, 1.0} ;
106 Float_t wP[2] = {1.0, 1.0} ;
109 AliMixture(1, "Polystyrene$", aP, zP, dP, -2, wP) ;
112 AliMaterial(2, "Al$", 26.98, 13., 2.7, 8.9, 999., 0, 0) ;
113 // --- Absorption length is ignored ^
115 // --- Tyvek (CnH2n) ---
116 Float_t aT[2] = {12.011, 1.00794} ;
117 Float_t zT[2] = {6.0, 1.0} ;
118 Float_t wT[2] = {1.0, 2.0} ;
121 AliMixture(3, "Tyvek$", aT, zT, dT, -2, wT) ;
123 // --- Polystyrene foam ---
124 Float_t aF[2] = {12.011, 1.00794} ;
125 Float_t zF[2] = {6.0, 1.0} ;
126 Float_t wF[2] = {1.0, 1.0} ;
129 AliMixture(4, "Foam$", aF, zF, dF, -2, wF) ;
132 Float_t aTIT[3] = {47.88, 26.98, 54.94} ;
133 Float_t zTIT[3] = {22.0, 13.0, 25.0} ;
134 Float_t wTIT[3] = {69.0, 6.0, 1.0} ;
137 AliMixture(5, "Titanium$", aTIT, zTIT, dTIT, -3, wTIT);
140 AliMaterial(6, "Si$", 28.0855, 14., 2.33, 9.36, 42.3, 0, 0) ;
144 // --- Foam thermo insulation ---
145 Float_t aTI[2] = {12.011, 1.00794} ;
146 Float_t zTI[2] = {6.0, 1.0} ;
147 Float_t wTI[2] = {1.0, 1.0} ;
150 AliMixture(7, "Thermo Insul.$", aTI, zTI, dTI, -2, wTI) ;
153 Float_t aTX[4] = {16.0, 28.09, 12.011, 1.00794} ;
154 Float_t zTX[4] = {8.0, 14.0, 6.0, 1.0} ;
155 Float_t wTX[4] = {292.0, 68.0, 462.0, 736.0} ;
158 AliMixture(8, "Textolit$", aTX, zTX, dTX, -4, wTX) ;
161 Float_t aFR[3] = {28.0855, 15.9994, 17.749} ;
162 Float_t zFR[3] = {14., 8., 8.875} ;
163 Float_t wFR[3] = {.28, .32, .4} ;
166 AliMixture(9, "FR4$", aFR, zFR, dFR, -3, wFR) ;
168 // --- The Composite Material for micromegas (so far polyetylene) ---
169 Float_t aCM[2] = {12.01, 1.} ;
170 Float_t zCM[2] = {6., 1.} ;
171 Float_t wCM[2] = {1., 2.} ;
172 Float_t dCM = 0.935 ;
174 AliMixture(10, "Compo Mat$", aCM, zCM, dCM, -2, wCM) ;
177 AliMaterial(11, "Cu$", 63.546, 29, 8.96, 1.43, 14.8, 0, 0) ;
179 // --- G10 : Printed Circuit material ---
180 Float_t aG10[4] = { 12., 1., 16., 28.} ;
181 Float_t zG10[4] = { 6., 1., 8., 14.} ;
182 Float_t wG10[4] = { .259, .288, .248, .205} ;
185 AliMixture(12, "G10$", aG10, zG10, dG10, -4, wG10);
188 AliMaterial(13, "Pb$", 207.2, 82, 11.35, 0.56, 0., 0, 0) ;
190 // --- The gas mixture ---
192 Float_t aCO[2] = {12.0, 16.0} ;
193 Float_t zCO[2] = {6.0, 8.0} ;
194 Float_t wCO[2] = {1.0, 2.0} ;
195 Float_t dCO = 0.001977 ;
197 AliMixture(14, "CO2$", aCO, zCO, dCO, -2, wCO);
200 Float_t dAr = 0.001782 ;
201 AliMaterial(15, "Ar$", 39.948, 18.0, dAr, 14.0, 0., 0, 0) ;
204 Char_t namate[21]="";
210 Float_t absL, radL, density ;
214 gMC->Gfmate((*fIdmate)[15], namate, aGM[0], zGM[0], density, radL, absL, buf, nbuf) ; // Get properties of Ar
215 gMC->Gfmate((*fIdmate)[14], namate, aGM[1], zGM[1], density, radL, absL, buf, nbuf) ; // Get properties of CO2
218 // Create gas mixture
220 Float_t arContent = 0.80 ; // Ar-content of the Ar/CO2-mixture (80% / 20%)
223 wGM[1] = 1. - arContent ;
224 dGM = wGM[0] * dAr + wGM[1] * dCO;
226 AliMixture(16, "ArCO2$", aGM, zGM, dGM, 2, wGM) ;
228 // --- Stainless steel (let it be pure iron) ---
229 AliMaterial(17, "Steel$", 55.845, 26, 7.87, 1.76, 0., 0, 0) ;
232 // --- Fiberglass ---
233 Float_t aFG[4] = {16.0, 28.09, 12.011, 1.00794} ;
234 Float_t zFG[4] = {8.0, 14.0, 6.0, 1.0} ;
235 Float_t wFG[4] = {292.0, 68.0, 462.0, 736.0} ;
238 AliMixture(18, "Fibergla$", aFG, zFG, dFG, -4, wFG) ;
240 // --- Cables in Air box ---
243 Float_t aCA[4] = { 1.,12.,55.8,63.5 };
244 Float_t zCA[4] = { 1.,6.,26.,29. };
245 Float_t wCA[4] = { .014,.086,.42,.48 };
246 Float_t dCA = 0.8 ; //this density is raw estimation, if you know better - correct
248 AliMixture(19, "Cables $", aCA, zCA, dCA, -4, wCA) ;
254 AliMaterial(99, "Air$", 14.61, 7.3, 0.001205, 30420., 67500., 0, 0) ;
257 // DEFINITION OF THE TRACKING MEDIA
259 // for PHOS: idtmed[699->798] equivalent to fIdtmed[0->100]
260 Int_t * idtmed = fIdtmed->GetArray() - 699 ;
261 Int_t isxfld = gAlice->Field()->Integ() ;
262 Float_t sxmgmx = gAlice->Field()->Max() ;
264 // The scintillator of the calorimeter made of PBW04 -> idtmed[699]
265 AliMedium(0, "PHOS Xtal $", 0, 1,
266 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
268 // The scintillator of the CPV made of Polystyrene scintillator -> idtmed[700]
269 AliMedium(1, "CPV scint. $", 1, 1,
270 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
272 // Various Aluminium parts made of Al -> idtmed[701]
273 AliMedium(2, "Al parts $", 2, 0,
274 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.001, 0.001, 0, 0) ;
276 // The Tywek which wraps the calorimeter crystals -> idtmed[702]
277 AliMedium(3, "Tyvek wrapper$", 3, 0,
278 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.001, 0.001, 0, 0) ;
280 // The Polystyrene foam around the calorimeter module -> idtmed[703]
281 AliMedium(4, "Polyst. foam $", 4, 0,
282 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
284 // The Titanium around the calorimeter crystal -> idtmed[704]
285 AliMedium(5, "Titan. cover $", 5, 0,
286 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.0001, 0.0001, 0, 0) ;
288 // The Silicon of the pin diode to read out the calorimeter crystal -> idtmed[705]
289 AliMedium(6, "Si PIN $", 6, 0,
290 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.01, 0.01, 0, 0) ;
292 // The thermo insulating material of the box which contains the calorimeter module -> idtmed[706]
293 AliMedium(7, "Thermo Insul.$", 7, 0,
294 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
296 // The Textolit which makes up the box which contains the calorimeter module -> idtmed[707]
297 AliMedium(8, "Textolit $", 8, 0,
298 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
300 // FR4: The Plastic which makes up the frame of micromegas -> idtmed[708]
301 AliMedium(9, "FR4 $", 9, 0,
302 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.0001, 0, 0) ;
305 // The Composite Material for micromegas -> idtmed[709]
306 AliMedium(10, "CompoMat $", 10, 0,
307 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
309 // Copper -> idtmed[710]
310 AliMedium(11, "Copper $", 11, 0,
311 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.0001, 0, 0) ;
313 // G10: Printed Circuit material -> idtmed[711]
315 AliMedium(12, "G10 $", 12, 0,
316 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.01, 0, 0) ;
318 // The Lead -> idtmed[712]
320 AliMedium(13, "Lead $", 13, 0,
321 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
323 // The gas mixture: ArCo2 -> idtmed[715]
325 AliMedium(16, "ArCo2 $", 16, 1,
326 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.01, 0, 0) ;
328 // Stainless steel -> idtmed[716]
329 AliMedium(17, "Steel $", 17, 0,
330 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.0001, 0, 0) ;
332 // Fibergalss -> idtmed[717]
333 AliMedium(18, "Fiberglass$", 18, 0,
334 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
336 // Cables in air -> idtmed[718]
337 AliMedium(19, "Cables $", 19, 0,
338 isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ;
340 // Air -> idtmed[798]
341 AliMedium(99, "Air $", 99, 0,
342 isxfld, sxmgmx, 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ;
344 // --- Set decent energy thresholds for gamma and electron tracking
346 // Tracking threshold for photons and electrons in the scintillator crystal
347 gMC->Gstpar(idtmed[699], "CUTGAM",0.5E-4) ;
348 gMC->Gstpar(idtmed[699], "CUTELE",1.0E-4) ;
350 // --- Generate explicitly delta rays in the titan cover ---
351 gMC->Gstpar(idtmed[704], "LOSS",3.) ;
352 gMC->Gstpar(idtmed[704], "DRAY",1.) ;
353 // --- and in aluminium parts ---
354 gMC->Gstpar(idtmed[701], "LOSS",3.) ;
355 gMC->Gstpar(idtmed[701], "DRAY",1.) ;
356 // --- and in PIN diode
357 gMC->Gstpar(idtmed[705], "LOSS",3) ;
358 gMC->Gstpar(idtmed[705], "DRAY",1) ;
359 // --- and in the passive convertor
360 gMC->Gstpar(idtmed[712], "LOSS",3) ;
361 gMC->Gstpar(idtmed[712], "DRAY",1) ;
362 // Tracking threshold for photons and electrons in the gas ArC02
363 gMC->Gstpar(idtmed[715], "CUTGAM",1.E-5) ;
364 gMC->Gstpar(idtmed[715], "CUTELE",1.E-5) ;
365 gMC->Gstpar(idtmed[715], "CUTNEU",1.E-5) ;
366 gMC->Gstpar(idtmed[715], "CUTHAD",1.E-5) ;
367 gMC->Gstpar(idtmed[715], "CUTMUO",1.E-5) ;
368 gMC->Gstpar(idtmed[715], "BCUTE",1.E-5) ;
369 gMC->Gstpar(idtmed[715], "BCUTM",1.E-5) ;
370 gMC->Gstpar(idtmed[715], "DCUTE",1.E-5) ;
371 gMC->Gstpar(idtmed[715], "DCUTM",1.E-5) ;
372 gMC->Gstpar(idtmed[715], "PPCUTM",1.E-5) ;
373 gMC->Gstpar(idtmed[715], "LOSS",2.) ;
374 gMC->Gstpar(idtmed[715], "DRAY",0.) ;
375 gMC->Gstpar(idtmed[715], "STRA",2.) ;
379 //____________________________________________________________________________
380 void AliPHOS::FillESD(AliESD* esd) const
382 // Called by AliReconstruct after Reconstruct() and global tracking and vertxing
384 //Creates the tracksegments and Recparticles
385 AliPHOSReconstructor * rec = new AliPHOSReconstructor((fLoader->GetRunLoader()->GetFileName()).Data()) ;
386 TList * taskslist = rec->GetListOfTasks() ;
390 // set clusterizer task inactive
391 for (index = 0; index < taskslist->GetSize(); index++) {
392 task = dynamic_cast<TTask *>(taskslist->At(index)) ;
393 name = task->GetName() ;
394 if ( name.Contains(AliConfig::Instance()->GetReconstructionerTaskName()))
395 task->SetActive(kFALSE) ;
396 if ( name.Contains(AliConfig::Instance()->GetTrackerTaskName()))
397 (dynamic_cast<AliPHOSTrackSegmentMaker *> (task))->SetESD(esd) ;
400 AliPHOSGetter *gime = AliPHOSGetter::Instance( (fLoader->GetRunLoader()->GetFileName()).Data() ) ;
401 Int_t eventNumber = gime->EventNumber();
402 rec->SetEventRange(eventNumber, eventNumber) ; // do current event; the loop over events is done by AliReconstruction::Run()
404 rec->ExecuteTask("deb all") ;
406 rec->ExecuteTask("") ;
408 // Creates AliESDtrack from AliPHOSRecParticles
409 gime->Event(eventNumber, "P") ;
410 TClonesArray *recParticles = gime->RecParticles();
411 Int_t nOfRecParticles = recParticles->GetEntries();
412 for (Int_t recpart = 0 ; recpart < nOfRecParticles ; recpart++) {
413 AliPHOSRecParticle * rp = dynamic_cast<AliPHOSRecParticle*>(recParticles->At(recpart));
416 AliESDtrack * et = new AliESDtrack() ;
417 // fills the ESDtrack
419 for (Int_t ixyz=0; ixyz<3; ixyz++) xyz[ixyz] = rp->GetPos()[ixyz];
420 et->SetPHOSposition(xyz) ;
421 et->SetPHOSsignal (rp->Energy()) ;
422 et->SetPHOSpid (rp->GetPID()) ;
423 // add the track to the esd object
429 //____________________________________________________________________________
430 void AliPHOS::Hits2SDigits()
432 // create summable digits
434 AliPHOSSDigitizer* phosDigitizer =
435 new AliPHOSSDigitizer(fLoader->GetRunLoader()->GetFileName().Data()) ;
436 phosDigitizer->SetEventRange(0, -1) ; // do all the events
437 phosDigitizer->ExecuteTask("all") ;
440 //____________________________________________________________________________
441 AliLoader* AliPHOS::MakeLoader(const char* topfoldername)
443 //different behaviour than standard (singleton getter)
444 // --> to be discussed and made eventually coherent
445 fLoader = new AliPHOSLoader(GetName(),topfoldername);
449 //____________________________________________________________________________
450 void AliPHOS::SetTreeAddress()
452 // Links Hits in the Tree to Hits array
455 sprintf(branchname,"%s",GetName());
457 // Branch address for hit tree
458 TTree *treeH = TreeH();
460 branch = treeH->GetBranch(branchname);
463 if (fHits == 0x0) fHits= new TClonesArray("AliPHOSHit",1000);
464 //Info("SetTreeAddress","<%s> Setting Hits Address",GetName());
465 branch->SetAddress(&fHits);
470 //____________________________________________________________________________
471 void AliPHOS::Reconstruct() const
473 // method called by AliReconstruction; it should not be called otherwise but the AliPHOSReconstructionner
474 // should be called for stand alone reconstruction.
475 // Only the clusterization is performed,; the rest of the reconstruction is done in FillESD because the track
476 // segment maker needs access to the AliESD object to retrieve the tracks reconstructed by
477 // the global tracking.
479 AliPHOSReconstructor * rec = new AliPHOSReconstructor((fLoader->GetRunLoader()->GetFileName()).Data()) ;
480 TList * taskslist = rec->GetListOfTasks() ;
484 // set all tasks inactive except clusterizer
485 for (index = 0; index < taskslist->GetSize(); index++) {
486 task = dynamic_cast<TTask *>(taskslist->At(index)) ;
487 name = task->GetName() ;
488 if ( !name.Contains(AliConfig::Instance()->GetReconstructionerTaskName()))
489 task->SetActive(kFALSE) ;
491 rec->SetEventRange(0, -1) ; // do all the events
493 rec->ExecuteTask("deb all") ;
495 rec->ExecuteTask("") ;
499 //____________________________________________________________________________
500 void AliPHOS::WriteQA()
503 // Make TreeQA in the output file.
506 fTreeQA = new TTree("TreeQA", "QA Alarms") ;
507 // Create Alarms branches
508 Int_t bufferSize = 32000 ;
509 Int_t splitlevel = 0 ;
511 TFolder* topfold = GetLoader()->GetTopFolder(); //get top aliroot folder; skowron
512 TString phosqafn(AliConfig::Instance()->GetQAFolderName()+"/"); //get name of QAaut folder relative to top event; skowron
513 phosqafn+=GetName(); //hard wired string!!! add the detector name to the pathname; skowron
514 TFolder * alarmsF = (TFolder*)topfold->FindObjectAny(phosqafn); //get the folder
518 Error("WriteQA","Can not find folder with qa alarms");
521 TString branchName(alarmsF->GetName());
522 TBranch * alarmsBranch = fTreeQA->Branch(branchName,"TFolder", &alarmsF, bufferSize, splitlevel);
523 TString branchTitle = branchName + " QA alarms" ;
524 alarmsBranch->SetTitle(branchTitle);
525 alarmsBranch->Fill() ;