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2012850d | 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 | **************************************************************************/ | |
15 | ||
16 | /* $Id$ */ | |
17 | ||
18 | //_________________________________________________________________________ | |
19 | // Base Class for EMCAL description: | |
20 | // | |
21 | // | |
22 | //*-- Author: Yves Schutz (SUBATECH) | |
23 | ////////////////////////////////////////////////////////////////////////////// | |
24 | ||
25 | // --- Standard library --- | |
26 | #include <strstream.h> | |
27 | ||
28 | // --- ROOT system --- | |
29 | #include "TBranch.h" | |
30 | #include "TClonesArray.h" | |
31 | #include "TTree.h" | |
32 | ||
33 | // --- AliRoot header files --- | |
34 | ||
35 | #include "AliEMCAL.h" | |
36 | #include "AliEMCALGeometry.h" | |
37 | #include "AliMC.h" | |
38 | #include "AliRun.h" | |
39 | #include "AliMagF.h" | |
40 | ||
41 | ClassImp(AliEMCAL) | |
42 | ||
43 | //____________________________________________________________________________ | |
44 | AliEMCAL::AliEMCAL():AliDetector() | |
45 | { | |
46 | // ctor | |
47 | //We do not create objects, because these pointers will be overwritten during reading from file. | |
48 | fSDigits = 0 ; | |
49 | } | |
50 | //____________________________________________________________________________ | |
51 | AliEMCAL::AliEMCAL(const char* name, const char* title): AliDetector(name,title) | |
52 | { | |
53 | // ctor : title is used to identify the layout | |
54 | ||
55 | // gets an instance of the geometry parameters class | |
56 | ||
57 | if (strcmp(GetTitle(),"") != 0 ) | |
58 | fGeom = AliEMCALGeometry::GetInstance(GetTitle(), "") ; | |
59 | } | |
60 | //____________________________________________________________________________ | |
61 | AliEMCAL::~AliEMCAL() | |
62 | { | |
63 | // dtor | |
64 | ||
65 | } | |
66 | ||
67 | //____________________________________________________________________________ | |
68 | void AliEMCAL::CreateMaterials() | |
69 | { | |
70 | // Definitions of materials to build EMCAL and associated tracking media. | |
71 | // media number in idtmed are 1599 to 1698. | |
72 | ||
73 | // --- Air --- | |
74 | AliMaterial(0, "Air$", 14.61, 7.3, 0.001205, 30420., 67500., 0, 0) ; | |
75 | ||
76 | // --- Lead --- | |
77 | AliMaterial(1, "Pb$", 207.2, 82, 11.35, 0.56, 0., 0, 0) ; | |
78 | ||
79 | // --- Average properties of the active material --- | |
80 | AliMaterial(2, "EmcalMat$", fGeom->GetAmat(), | |
81 | fGeom->GetZmat(), | |
82 | fGeom->GetDmat(), | |
83 | fGeom->GetRmat(), | |
84 | 0) ; | |
85 | ||
86 | // DEFINITION OF THE TRACKING MEDIA | |
87 | ||
88 | // for EMCAL: idtmed[1599->1698] equivalent to fIdtmed[0->100] | |
89 | Int_t * idtmed = fIdtmed->GetArray() - 1599 ; | |
90 | Int_t isxfld = gAlice->Field()->Integ() ; | |
91 | Float_t sxmgmx = gAlice->Field()->Max() ; | |
92 | ||
93 | // Air -> idtmed[1599] | |
94 | AliMedium(0, "Air $", 0, 0, | |
95 | isxfld, sxmgmx, 10.0, 1.0, 0.1, 0.1, 10.0, 0, 0) ; | |
96 | ||
97 | // The Lead -> idtmed[1600] | |
98 | ||
99 | AliMedium(1, "Lead $", 1, 0, | |
100 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ; | |
101 | ||
102 | // The Average properties of the active material -> idtmed[1601] | |
103 | ||
104 | AliMedium(2, "EmcalMat $", 2, 0, | |
105 | isxfld, sxmgmx, 10.0, 0.1, 0.1, 0.1, 0.1, 0, 0) ; | |
106 | ||
107 | // --- Set decent energy thresholds for gamma and electron tracking | |
108 | ||
109 | // Tracking threshold for photons and electrons in Lead | |
110 | gMC->Gstpar(idtmed[1600], "CUTGAM",0.5E-4) ; | |
111 | gMC->Gstpar(idtmed[1600], "CUTELE",1.0E-4) ; | |
112 | gMC->Gstpar(idtmed[1601], "CUTGAM",0.5E-4) ; | |
113 | gMC->Gstpar(idtmed[1601], "CUTELE",1.0E-4) ; | |
114 | ||
115 | // --- Generate explicitly delta rays in Lead --- | |
116 | gMC->Gstpar(idtmed[1600], "LOSS",3.) ; | |
117 | gMC->Gstpar(idtmed[1600], "DRAY",1.) ; | |
118 | gMC->Gstpar(idtmed[1601], "LOSS",3.) ; | |
119 | gMC->Gstpar(idtmed[1601], "DRAY",1.) ; | |
120 | ||
121 | } | |
122 | //____________________________________________________________________________ | |
123 | void AliEMCAL::SetTreeAddress() | |
124 | { | |
125 | ||
126 | TBranch *branch; | |
127 | char branchname[20]; | |
128 | sprintf(branchname,"%s",GetName()); | |
129 | ||
130 | // Branch address for hit tree | |
131 | TTree *treeH = gAlice->TreeH(); | |
132 | if (treeH && fHits) { | |
133 | branch = treeH->GetBranch(branchname); | |
134 | if (branch) branch->SetAddress(&fHits); | |
135 | } | |
136 | ||
137 | // Branch address for digit tree | |
138 | TTree *treeD = gAlice->TreeD(); | |
139 | ||
140 | if(fDigits) | |
141 | fDigits->Clear(); | |
142 | ||
143 | if (treeD && fDigits) { | |
144 | branch = treeD->GetBranch(branchname); | |
145 | if (branch) branch->SetAddress(&fDigits); | |
146 | } | |
147 | ||
148 | if(fSDigits) | |
149 | fSDigits->Clear(); | |
150 | ||
151 | if (gAlice->TreeS() && fSDigits ) { | |
152 | branch = gAlice->TreeS()->GetBranch("EMCAL"); | |
153 | if (branch) branch->SetAddress(&fSDigits) ; | |
154 | } | |
155 | } | |
156 | ||
157 |