Line data Source code
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 : // //
20 : // Alice external volume //
21 : // This class contains the description of the Alice external volume //
22 : // //
23 : //Begin_Html
24 : /*
25 : <img src="picts/AliBODYClass.gif">
26 : </pre>
27 : <br clear=left>
28 : <font size=+2 color=red>
29 : <p>The responsible person for this module is
30 : <a href="mailto:andreas.morsch@cern.ch">Andreas Morsch</a>.
31 : </font>
32 : <pre>
33 : */
34 : //End_Html
35 : // //
36 : // //
37 : ///////////////////////////////////////////////////////////////////////////////
38 :
39 : #include <TGeoGlobalMagField.h>
40 : #include <TVirtualMC.h>
41 : #include <TArrayI.h>
42 :
43 : #include "AliBODY.h"
44 : #include "AliMagF.h"
45 : #include "AliRun.h"
46 :
47 12 : ClassImp(AliBODY)
48 :
49 : //_____________________________________________________________________________
50 12 : AliBODY::AliBODY()
51 60 : {
52 : //
53 : // Default constructor
54 : //
55 24 : }
56 :
57 : //_____________________________________________________________________________
58 : AliBODY::AliBODY(const char *name, const char *title)
59 1 : : AliModule(name,title)
60 5 : {
61 : //
62 : // Standard constructor of the Alice external volume
63 : //
64 : //PH SetMarkerColor(7);
65 : //PH SetMarkerStyle(2);
66 : //PH SetMarkerSize(0.4);
67 2 : }
68 :
69 : //_____________________________________________________________________________
70 : void AliBODY::CreateGeometry()
71 : {
72 : //
73 : // Create the geometry of the Alice external body
74 : //
75 : //Begin_Html
76 : /*
77 : <img src="picts/AliBODYTree.gif">
78 : */
79 : //End_Html
80 : //
81 : // If the ZDC is present we have an asymmetric box
82 : // made by a four sides polygone
83 : //
84 : //Begin_Html
85 : /*
86 : <img src="picts/AliBODYLarge.gif">
87 : */
88 : //End_Html
89 : //
90 : // If the ZDC is not present make just a BOX
91 : //
92 : //Begin_Html
93 : /*
94 : <img src="picts/AliBODYSmall.gif">
95 : */
96 : //End_Html
97 :
98 2 : Float_t dALIC[10];
99 1 : Int_t *idtmed = fIdtmed->GetArray()+1;
100 : //
101 1 : if(gAlice->GetModule("ZDC")) {
102 : //
103 1 : dALIC[0]=2500.;
104 1 : dALIC[1]=2500.;
105 1 : dALIC[2]=15000.;
106 1 : TVirtualMC::GetMC()->Gsvolu("ALIC","BOX ",idtmed[1],dALIC,3);
107 1 : } else if ( gAlice->GetModule("ACORDE")) {
108 : //
109 : // If the Cosmic Ray Trigger is present we need a large box
110 : //
111 : //
112 0 : dALIC[0]=13000.;
113 0 : dALIC[1]=5000.;
114 0 : dALIC[2]=13000.;
115 0 : TVirtualMC::GetMC()->Gsvolu("ALIC","BOX ",idtmed[1],dALIC,3);
116 :
117 0 : } else {
118 : //
119 : // If the ZDC and ACORDE are not present make just a BOX
120 : //
121 0 : dALIC[0]=2000;
122 0 : dALIC[1]=2000;
123 0 : dALIC[2]=3000;
124 0 : TVirtualMC::GetMC()->Gsvolu("ALIC","BOX ",idtmed[1],dALIC,3);
125 : }
126 1 : }
127 :
128 : //_____________________________________________________________________________
129 : void AliBODY::CreateMaterials()
130 : {
131 : // Create materials and media
132 2 : Int_t isxfld = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Integ();
133 1 : Float_t sxmgmx = ((AliMagF*)TGeoGlobalMagField::Instance()->GetField())->Max();
134 :
135 : // AIR
136 :
137 1 : Float_t aAir[4]={12.0107,14.0067,15.9994,39.948};
138 1 : Float_t zAir[4]={6.,7.,8.,18.};
139 1 : Float_t wAir[4]={0.000124,0.755267,0.231781,0.012827};
140 : Float_t dAir = 1.20479E-3 * 960./1014.;
141 : Float_t dAir1 = 1.20479E-10;
142 : //
143 1 : AliMixture(1,"Vacuum $",aAir,zAir,dAir1,4,wAir);
144 1 : AliMixture(2,"Air $",aAir,zAir,dAir,4,wAir);
145 1 : AliMaterial(3,"Be $", 9.01,4 ,1.848 ,35.30,36.70);
146 : //
147 1 : AliMedium(1,"Vacuum $",1,0,isxfld,sxmgmx,10,1,0.1,0.1,10);
148 1 : AliMedium(2,"Air $",2,0,isxfld,sxmgmx,10,-1,-0.1,0.1 ,-10);
149 1 : AliMedium(3,"Be pipe $",3,0,isxfld,sxmgmx,10,0.1,0.1,0.01,0.01);
150 1 : }
151 :
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