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7119952d | 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 | /* | |
17 | $Log$ | |
a3dfe79c | 18 | Revision 1.1 2000/11/03 16:29:02 schutz |
19 | PPSD geometry class to correct previous name-convetion rule violation | |
20 | ||
7119952d | 21 | */ |
22 | ||
23 | //_________________________________________________________________________ | |
24 | // Geometry class for PHOS : PPSD (PHOS Preshower Detector) | |
a3dfe79c | 25 | // Its data members provide geometry parametrization of PPSD |
26 | // which can be changed in the constructor only. | |
27 | // Author : Yves Schutz (SUBATECH) | |
28 | // Modified : Yuri Kharlov (IHEP, Protvino) | |
29 | // 7 November 2000 | |
30 | ||
7119952d | 31 | // --- ROOT system --- |
32 | ||
33 | // --- Standard library --- | |
34 | ||
35 | #include <iostream.h> | |
36 | ||
37 | // --- AliRoot header files --- | |
38 | ||
39 | #include "AliPHOSPPSDGeometry.h" | |
40 | ||
41 | ClassImp(AliPHOSPPSDGeometry) ; | |
42 | ||
43 | //____________________________________________________________________________ | |
44 | AliPHOSPPSDGeometry::AliPHOSPPSDGeometry() | |
45 | { | |
46 | ||
47 | // Initializes the PPSD parameters | |
48 | ||
49 | fAnodeThickness = 0.0009 ; | |
50 | fAvalancheGap = 0.01 ; | |
51 | fCathodeThickness = 0.0009 ; | |
52 | fCompositeThickness = 0.3 ; | |
53 | fConversionGap = 0.6 ; | |
54 | fLeadConverterThickness = 0.56 ; | |
55 | fLeadToMicro2Gap = 0.1 ; | |
56 | fLidThickness = 0.2 ; | |
57 | fMicro1ToLeadGap = 0.1 ; | |
58 | fMicromegasWallThickness = 0.6 ; | |
59 | fNumberOfModulesPhi = 4 ; | |
60 | fNumberOfModulesZ = 4 ; | |
a3dfe79c | 61 | fNumberOfPadsPhi = 32 ; |
62 | fNumberOfPadsZ = 32 ; | |
63 | fPCThickness = 0.1 ; | |
64 | fPhiDisplacement = 0.8 ; | |
7119952d | 65 | fZDisplacement = 0.8 ; |
66 | ||
67 | fMicromegas1Thickness = fLidThickness + 2 * fCompositeThickness + fCathodeThickness | |
68 | + fPCThickness + fAnodeThickness + fConversionGap + fAvalancheGap ; | |
69 | fMicromegas2Thickness = fMicromegas1Thickness ; | |
70 | ||
71 | fPPSDModuleSize[0] = 38.0 ; | |
72 | fPPSDModuleSize[1] = fMicromegas1Thickness ; | |
73 | fPPSDModuleSize[2] = 38.0 ; | |
74 | ||
75 | fPPSDBoxSize[0] = fNumberOfModulesPhi * fPPSDModuleSize[0] + 2 * fPhiDisplacement ; | |
76 | fPPSDBoxSize[1] = fMicromegas2Thickness + fMicromegas2Thickness | |
77 | + fLeadConverterThickness + fMicro1ToLeadGap + fLeadToMicro2Gap ; | |
78 | fPPSDBoxSize[2] = fNumberOfModulesZ * fPPSDModuleSize[2] + 2 * fZDisplacement ; | |
79 | ||
80 | } | |
81 | ||
82 | //____________________________________________________________________________ |