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[u/mrichter/AliRoot.git] / STRUCT / SHILConst.h
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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
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 = 810.;
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//
53 const Float_t kRB1=5.5;
54 const Float_t kHB1=2.25;
55 const Float_t kLB1=0.77;
56 const Float_t kEB1=0.04;
57//
58
59 const Float_t kDB1=12.*kLB1/2.;
60// Flange position
61 const Float_t kZvac2=507.;
62 const Float_t kZvac1=kZvac2-kDB1-kDr11/2.-kDr12;
63 const Float_t kZvac3=kZvac2+kDB1+kDF1+kDr13+6.;
64 const Float_t kZvac4=558.;
65// Outer shield dimensions
66 const Float_t kR11=15.45;
67// Steel Envelope
68 const Float_t kDRSteel2=4.;
69// According to design
70// const Float_t R21=20.3;
71// to avoid overlap with 2deg line
72 const Float_t kR21=19.4;
73//
74// 2nd Section
75//
76// const Float_t kZvac5=kZvac4+4.;
77//
78// 3rd Section
79//
80 const Float_t kZvac6=711.;
81 const Float_t kZvac8=1274.;
82//const Float_t kDr21=2.263;
83 const Float_t kDr21=.5;
84 const Float_t kDr22=1.3;
85 const Float_t kDr23=2.263;
86 const Float_t kDB2=24.118;
87 const Float_t kDF2=10.6;
88 const Float_t kZvac7=kZvac8-kDF2/2-kDB2-kDr22-kDr21;
89 const Float_t kZvac9=kZvac8+kDF2/2+kDB2+kDr22+kDr23;
90//
91// 4th Section
92//
93 const Float_t kZvac10=1466.;
94 const Float_t kZvac11=1800.;
95 const Float_t kZvac12=1900.;
96
97 const Float_t kR41=35.;
98 const Float_t kR42=49.9;
99 const Float_t kR43=110.;
100
101//
102// Vacuum System
103//
104
105
106//
107// Flange1
108//
109 const Float_t kRF1=8.4;
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//const Float_t kZch1 = 530.0 ;
128//const Float_t kZch2 = 672.5 ;
129
130const Float_t kZch11 = 526.2 ;
131const Float_t kZch12 = 553.8 ;
132const Float_t kZch21 = 670.25;
133const Float_t kZch22 = 701.75;
134const Float_t kZch31 = 946. ;
135const Float_t kZch32 = 1046. ;
136const Float_t kZch41 = 1238.16;
137const Float_t kZch42 = 1296.16;
138const Float_t kZch51 = 1399.0 ;
139const Float_t kZch52 = 1457.0 ;
140#endif
141