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1 | #ifndef SHILCONST2_H | |
2 | #define SHILCONST2_H | |
3 | ||
4 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. */ | |
5 | ||
6 | /* $Id$ */ | |
7 | ||
8 | // angle of 2nd cone | |
9 | const Float_t kThetaOpen2 = 0.83*kDegrad; | |
10 | // angle of 3rd cone | |
11 | const Float_t kThetaOpen3 = 0.83*kDegrad; | |
12 | // angle of beam tube in second cone | |
13 | const Float_t kThetaOpenB = 0.83*kDegrad; | |
14 | // const Float_t thetaOpenB = 0.84*kDegrad; | |
15 | // inner lead Cone opening angle | |
16 | // const Float_t kThetaOpenPb = 0.6*kDegrad; | |
17 | // Outer Pb Cone opening angle | |
18 | const Float_t kThetaOpenPbO = 1.6*kDegrad; | |
19 | // Start of lead cone | |
20 | const Float_t kZPb = 720.; | |
21 | // y-position of trigger wall | |
22 | const Float_t kZFilterIn = 1471.; | |
23 | const Float_t kZFilterOut = kZFilterIn+120.; | |
24 | // end of 2-degree outer cone | |
25 | // const Float_t zConeE = 30./TMath::Tan(accMin); | |
26 | const Float_t kZConeE = 859.; | |
27 | // | |
28 | // | |
29 | Float_t dTubeS = 0.1; | |
30 | const Float_t kDInsuS=1.5; | |
31 | const Float_t kDEnveS=0.1; | |
32 | const Float_t kDProtS=0.1; | |
33 | const Float_t kDFreeS=0.00; | |
34 | ||
35 | Float_t dVacuS=dTubeS+kDInsuS+kDEnveS+kDProtS+kDFreeS; | |
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=2.65; | |
43 | const Float_t kDr11=4.1; | |
44 | // delta_R for flange | |
45 | const Float_t kDr12=0.01; | |
46 | // delta_R to catch up with cone | |
47 | const Float_t kDr13=2.0; | |
48 | ||
49 | // flange length | |
50 | const Float_t kDF1=2.*3.9; | |
51 | // bellow length | |
52 | const Float_t kDB1=18.482-kDF1/2-kDr11/6.; | |
53 | // Flange position | |
54 | const Float_t kZvac2=577.; | |
55 | const Float_t kZvac1=kZvac2-kDF1/2-kDB1-kDr11/10.-kDr12; | |
56 | const Float_t kZvac3=kZvac2+kDF1/2+kDB1+kDr12+kDr13; | |
57 | // const Float_t kZvac4=648.; | |
58 | const Float_t kZvac4 = 618.; | |
59 | const Float_t kZvac41= 558.; | |
60 | // Outer shield dimensions | |
61 | const Float_t kR11=15.4; | |
62 | // Steel Envelope | |
63 | const Float_t kDRSteel2=4.; | |
64 | // According to design | |
65 | // const Float_t R21=20.3; | |
66 | // to avoid overlap with 2deg line | |
67 | const Float_t kR21= 19.5; | |
68 | // | |
69 | // 2nd Section | |
70 | // | |
71 | // const Float_t kZvac5=kZvac4+4.; | |
72 | // | |
73 | // 3rd Section | |
74 | // | |
75 | const Float_t kZvac6=711.; | |
76 | const Float_t kZvac8=1274.; | |
77 | //const Float_t kDr21=2.263; | |
78 | const Float_t kDr21=.5; | |
79 | const Float_t kDr22=1.3; | |
80 | const Float_t kDr23=2.263; | |
81 | const Float_t kDB2=24.118; | |
82 | const Float_t kDF2=10.6; | |
83 | const Float_t kZvac7=kZvac8-kDF2/2-kDB2-kDr22-kDr21; | |
84 | const Float_t kZvac9=kZvac8+kDF2/2+kDB2+kDr22+kDr23; | |
85 | // | |
86 | // 4th Section | |
87 | // | |
88 | const Float_t kZvac10=1466.; | |
89 | const Float_t kZvac11=1800.; | |
90 | const Float_t kZvac12=1900.; | |
91 | ||
92 | const Float_t kR41=35.; | |
93 | const Float_t kR42=48.0; | |
94 | const Float_t kR43=110.; | |
95 | ||
96 | // | |
97 | // Vacuum System | |
98 | // | |
99 | ||
100 | // Bellow1 | |
101 | // | |
102 | const Float_t kRB1=5.97+0.4; | |
103 | const Float_t kHB1=2.25; | |
104 | const Float_t kLB1=1.2; | |
105 | const Float_t kEB1=0.04; | |
106 | // | |
107 | // Flange1 | |
108 | // | |
109 | const Float_t kRF1=8.87+0.4; | |
110 | const Float_t kDFlange=0.1; | |
111 | ||
112 | // | |
113 | // Bellow2 | |
114 | // | |
115 | const Float_t kRB2=16.35; | |
116 | const Float_t kHB2=2.25; | |
117 | const Float_t kLB2=2.32; | |
118 | const Float_t kEB2=0.05; | |
119 | // | |
120 | // Flange2 | |
121 | // | |
122 | const Float_t kRF2=18.5; | |
123 | ||
124 | // | |
125 | // Chamber positions | |
126 | // | |
127 | ||
128 | const Float_t kZch11 = 517.70; | |
129 | const Float_t kZch12 = 553.70; | |
130 | const Float_t kZch21 = 661.30; | |
131 | const Float_t kZch22 = 709.90; | |
132 | const Float_t kZch31 = 951.25; | |
133 | const Float_t kZch32 = 1014.75; | |
134 | const Float_t kZch41 = 1259.90; | |
135 | const Float_t kZch42 = 1324.10; | |
136 | const Float_t kZch51 = 1390.00; | |
137 | const Float_t kZch52 = 1454.20; | |
138 | #endif | |
139 |