]>
Commit | Line | Data |
---|---|---|
2f2c3b32 | 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 | // Geometry class for PHOS : EMCA (Electromagnetic Calorimeter) | |
a3dfe79c | 20 | // Its data members provide geometry parametrization of EMCA |
21 | // which can be changed in the constructor only. | |
22 | // Author : Yves Schutz (SUBATECH) | |
23 | // Modified : Yuri Kharlov (IHEP, Protvino) | |
24 | // 13 September 2000 | |
25 | ||
2f2c3b32 | 26 | // --- AliRoot header files --- |
27 | ||
28 | #include "AliPHOSEMCAGeometry.h" | |
29 | ||
30 | ClassImp(AliPHOSEMCAGeometry) ; | |
31 | ||
32 | //____________________________________________________________________________ | |
33 | AliPHOSEMCAGeometry::AliPHOSEMCAGeometry() | |
34 | { | |
35 | ||
36 | // Initializes the EMC parameters | |
37 | ||
38 | fNPhi = 64 ; | |
39 | fNZ = 64 ; | |
40 | ||
41 | fXtlSize[0] = 2.2 ; | |
ed4205d8 | 42 | fXtlSize[1] = 22.0 ; |
2f2c3b32 | 43 | fXtlSize[2] = 2.2 ; |
44 | ||
45 | // all these numbers coming next are subject to changes | |
46 | ||
ed4205d8 | 47 | fOuterBoxThickness[0] = 2.5 ; |
2f2c3b32 | 48 | fOuterBoxThickness[1] = 5.0 ; |
49 | fOuterBoxThickness[2] = 5.0 ; | |
50 | ||
51 | fUpperPlateThickness = 4.0 ; | |
52 | ||
53 | fSecondUpperPlateThickness = 5.0 ; | |
54 | ||
55 | fCrystalSupportHeight = 6.95 ; | |
56 | fCrystalWrapThickness = 0.01 ; | |
57 | fCrystalHolderThickness = 0.005 ; | |
58 | fModuleBoxThickness = 2.0 ; | |
59 | fIPtoOuterCoverDistance = 447.0 ; | |
60 | fIPtoCrystalSurface = 460.0 ; | |
61 | ||
62 | fPinDiodeSize[0] = 1.71 ; //Values given by Odd Harald feb 2000 | |
63 | fPinDiodeSize[1] = 0.0280 ; // 0.0280 is the depth of active layer in the silicon | |
64 | fPinDiodeSize[2] = 1.61 ; | |
65 | ||
66 | fUpperCoolingPlateThickness = 0.06 ; | |
67 | fSupportPlateThickness = 10.0 ; | |
68 | fLowerThermoPlateThickness = 3.0 ; | |
69 | fLowerTextolitPlateThickness = 1.0 ; | |
70 | fGapBetweenCrystals = 0.03 ; | |
71 | ||
72 | fTextolitBoxThickness[0] = 1.5 ; | |
73 | fTextolitBoxThickness[1] = 0.0 ; | |
74 | fTextolitBoxThickness[2] = 3.0 ; | |
75 | ||
ed4205d8 | 76 | fAirThickness[0] = 0.4 ; |
2f2c3b32 | 77 | fAirThickness[1] = 20.5175 ; |
78 | fAirThickness[2] = 2.48 ; | |
79 | ||
80 | Float_t xtalModulePhiSize = fNPhi * ( fXtlSize[0] + 2 * fGapBetweenCrystals ) ; | |
81 | Float_t xtalModuleZSize = fNZ * ( fXtlSize[2] + 2 * fGapBetweenCrystals ) ; | |
82 | ||
83 | // The next dimensions are calculated from the above parameters | |
84 | ||
85 | fOuterBoxSize[0] = xtalModulePhiSize + 2 * ( fAirThickness[0] + fModuleBoxThickness | |
86 | + fTextolitBoxThickness[0] + fOuterBoxThickness[0] ) ; | |
87 | fOuterBoxSize[1] = ( fXtlSize[1] + fCrystalSupportHeight + fCrystalWrapThickness + fCrystalHolderThickness ) | |
88 | + 2 * (fAirThickness[1] + fModuleBoxThickness + fTextolitBoxThickness[1] + fOuterBoxThickness[1] ) ; | |
89 | fOuterBoxSize[2] = xtalModuleZSize + 2 * ( fAirThickness[2] + fModuleBoxThickness | |
90 | + fTextolitBoxThickness[2] + fOuterBoxThickness[2] ) ; | |
91 | ||
92 | fTextolitBoxSize[0] = fOuterBoxSize[0] - 2 * fOuterBoxThickness[0] ; | |
93 | fTextolitBoxSize[1] = fOuterBoxSize[1] - fOuterBoxThickness[1] - fUpperPlateThickness ; | |
94 | fTextolitBoxSize[2] = fOuterBoxSize[2] - 2 * fOuterBoxThickness[2] ; | |
95 | ||
96 | fAirFilledBoxSize[0] = fTextolitBoxSize[0] - 2 * fTextolitBoxThickness[0] ; | |
97 | fAirFilledBoxSize[1] = fTextolitBoxSize[1] - fSecondUpperPlateThickness ; | |
98 | fAirFilledBoxSize[2] = fTextolitBoxSize[2] - 2 * fTextolitBoxThickness[2] ; | |
99 | ||
100 | } | |
101 | //____________________________________________________________________________ |