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0a3b2349 | 1 | #ifndef SHILCONST_H |
2 | #define SHILCONST_H | |
3 | ||
4 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. */ | |
5 | ||
6 | /* $Id$ */ | |
7 | ||
8 | // angle of 2nd cone | |
a0cb6c86 | 9 | const Float_t thetaOpen2 = 0.78*kDegrad; |
0a3b2349 | 10 | // angle of 3rd cone |
a0cb6c86 | 11 | const Float_t thetaOpen3 = 0.78*kDegrad; |
0a3b2349 | 12 | // angle of beam tube in second cone |
a0cb6c86 | 13 | const Float_t thetaOpenB = 0.83*kDegrad; |
14 | // const Float_t thetaOpenB = 0.84*kDegrad; | |
0a3b2349 | 15 | // inner lead Cone opening angle |
16 | const Float_t thetaOpenPb = 0.6*kDegrad; | |
17 | // Outer Pb Cone opening angle | |
18 | const Float_t thetaOpenPbO = 1.6*kDegrad; | |
19 | // Start of lead cone | |
20 | const Float_t zPb = 810.; | |
21 | // y-position of trigger wall | |
22 | const Float_t zFilterIn = 1471.; | |
23 | const Float_t zFilterOut = zFilterIn+120.; | |
24 | // end of 2-degree outer cone | |
2f36dac3 | 25 | // const Float_t zConeE = 30./TMath::Tan(accMin); |
26 | const Float_t zConeE = 859.; | |
0a3b2349 | 27 | // |
28 | // | |
29 | Float_t dTubeS=0.1; | |
2f36dac3 | 30 | const Float_t dInsuS=0.6; |
0a3b2349 | 31 | const Float_t dEnveS=0.1; |
32 | const Float_t dProtS=0.2; | |
3a787ca9 | 33 | const Float_t dFreeS=0.45; |
0a3b2349 | 34 | |
35 | Float_t dVacuS=dTubeS+dInsuS+dEnveS+dProtS+dFreeS; | |
36 | ||
37 | // | |
38 | // Radii and z-positions imposed by vacuum chamber layout | |
39 | // | |
40 | // FIRST SECTION | |
41 | // delta_R for bellows | |
42 | const Float_t dr11=1.8; | |
43 | // delta_R for flange | |
44 | const Float_t dr12=0.875; | |
45 | // delta_R to catch up with cone | |
46 | const Float_t dr13=0.525; | |
2f36dac3 | 47 | |
0a3b2349 | 48 | // flange length |
49 | const Float_t dF1=2.*3.9; | |
50 | // bellow length | |
51 | const Float_t dB1=18.482-dF1/2-dr11; | |
52 | // Flange position | |
53 | const Float_t zvac2=518.; | |
54 | const Float_t zvac1=zvac2-dF1/2-dB1-dr11-dr12; | |
55 | const Float_t zvac3=zvac2+dF1/2+dB1+dr12+dr13; | |
56 | const Float_t zvac4=558.; | |
57 | // Outer shield dimensions | |
58 | const Float_t R11=15.45; | |
59 | // Steel Envelope | |
60 | const Float_t dRSteel1=2.; | |
61 | const Float_t dRSteel2=4.; | |
62 | // According to design | |
63 | // const Float_t R21=20.3; | |
64 | // to avoid overlap with 2deg line | |
65 | const Float_t R21=19.4; | |
66 | // | |
67 | // 2nd Section | |
68 | // | |
69 | const Float_t zvac5=zvac4+4.; | |
70 | // | |
71 | // 3rd Section | |
72 | // | |
73 | const Float_t zvac6=711.; | |
74 | const Float_t zvac8=1274.; | |
a0cb6c86 | 75 | //const Float_t dr21=2.263; |
76 | const Float_t dr21=.5; | |
0a3b2349 | 77 | const Float_t dr22=1.3; |
78 | const Float_t dr23=2.263; | |
79 | const Float_t dB2=24.118; | |
80 | const Float_t dF2=10.6; | |
81 | const Float_t zvac7=zvac8-dF2/2-dB2-dr22-dr21; | |
82 | const Float_t zvac9=zvac8+dF2/2+dB2+dr22+dr23; | |
83 | // | |
84 | // 4th Section | |
85 | // | |
86 | const Float_t zvac10=1466.; | |
87 | const Float_t zvac11=1800.; | |
88 | const Float_t zvac12=1900.; | |
89 | ||
90 | const Float_t R41=35.; | |
91 | const Float_t R42=50.; | |
92 | const Float_t R43=110.; | |
93 | ||
94 | // | |
95 | // Vacuum System | |
96 | // | |
97 | ||
98 | // Bellow1 | |
99 | // | |
100 | const Float_t rB1=5.5; | |
101 | const Float_t hB1=2.25; | |
102 | const Float_t lB1=0.77; | |
103 | const Float_t eB1=0.04; | |
104 | // | |
105 | // Flange1 | |
106 | // | |
a0cb6c86 | 107 | const Float_t rF1=8.4; |
0a3b2349 | 108 | const Float_t dFlange=0.1; |
109 | ||
110 | // | |
111 | // Bellow2 | |
112 | // | |
2f36dac3 | 113 | const Float_t rB2=15.85; |
0a3b2349 | 114 | const Float_t hB2=2.25; |
115 | const Float_t lB2=2.32; | |
116 | const Float_t eB2=0.05; | |
117 | // | |
118 | // Flange2 | |
119 | // | |
a0cb6c86 | 120 | const Float_t rF2=18.5; |
0a3b2349 | 121 | |
122 | // | |
123 | // Chamber positions | |
124 | // | |
39311070 | 125 | const Float_t zch1 = 530.0 ; |
126 | const Float_t zch2 = 672.5 ; | |
127 | ||
a0cb6c86 | 128 | const Float_t zch11 = 526.2 ; |
129 | const Float_t zch12 = 553.8 ; | |
130 | const Float_t zch21 = 670.25; | |
131 | const Float_t zch22 = 701.75; | |
39311070 | 132 | const Float_t zch31 = 946. ; |
133 | const Float_t zch32 = 1046. ; | |
134 | const Float_t zch41 = 1238.16; | |
135 | const Float_t zch42 = 1296.16; | |
136 | const Float_t zch51 = 1399.0 ; | |
137 | const Float_t zch52 = 1457.0 ; | |
0a3b2349 | 138 | #endif |
39311070 | 139 |