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[u/mrichter/AliRoot.git] / STRUCT / SHILConst2.h
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be4fc320 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
dbbe5bc1 9 const Float_t kThetaOpen2 = 0.83*kDegrad;
be4fc320 10// angle of 3rd cone
dbbe5bc1 11 const Float_t kThetaOpen3 = 0.83*kDegrad;
be4fc320 12// angle of beam tube in second cone
dbbe5bc1 13 const Float_t kThetaOpenB = 0.83*kDegrad;
be4fc320 14// const Float_t thetaOpenB = 0.84*kDegrad;
15// inner lead Cone opening angle
dbbe5bc1 16// const Float_t kThetaOpenPb = 0.6*kDegrad;
be4fc320 17// Outer Pb Cone opening angle
dbbe5bc1 18 const Float_t kThetaOpenPbO = 1.6*kDegrad;
be4fc320 19// Start of lead cone
dbbe5bc1 20 const Float_t kZPb = 720.;
be4fc320 21// y-position of trigger wall
dbbe5bc1 22 const Float_t kZFilterIn = 1471.;
23 const Float_t kZFilterOut = kZFilterIn+120.;
be4fc320 24// end of 2-degree outer cone
25// const Float_t zConeE = 30./TMath::Tan(accMin);
dbbe5bc1 26 const Float_t kZConeE = 859.;
be4fc320 27//
28//
29 Float_t dTubeS = 0.1;
dbbe5bc1 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;
be4fc320 34
dbbe5bc1 35 Float_t dVacuS=dTubeS+kDInsuS+kDEnveS+kDProtS+kDFreeS;
be4fc320 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;
dbbe5bc1 43 const Float_t kDr11=4.1;
be4fc320 44// delta_R for flange
dbbe5bc1 45 const Float_t kDr12=0.01;
be4fc320 46// delta_R to catch up with cone
dbbe5bc1 47 const Float_t kDr13=2.0;
be4fc320 48
49// flange length
dbbe5bc1 50 const Float_t kDF1=2.*3.9;
be4fc320 51// bellow length
dbbe5bc1 52 const Float_t kDB1=18.482-kDF1/2-kDr11/6.;
be4fc320 53// Flange position
dbbe5bc1 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.;
be4fc320 60// Outer shield dimensions
bf026144 61 const Float_t kR11=15.4;
be4fc320 62// Steel Envelope
dbbe5bc1 63 const Float_t kDRSteel2=4.;
be4fc320 64// According to design
65// const Float_t R21=20.3;
66// to avoid overlap with 2deg line
af45076b 67 const Float_t kR21= 19.5;
be4fc320 68//
69// 2nd Section
70//
dbbe5bc1 71// const Float_t kZvac5=kZvac4+4.;
be4fc320 72//
73// 3rd Section
74//
dbbe5bc1 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;
be4fc320 85//
86// 4th Section
87//
dbbe5bc1 88 const Float_t kZvac10=1466.;
89 const Float_t kZvac11=1800.;
90 const Float_t kZvac12=1900.;
be4fc320 91
dbbe5bc1 92 const Float_t kR41=35.;
dff31e46 93 const Float_t kR42=48.0;
be05e10c 94 const Float_t kR43=110.;
be4fc320 95
96//
97// Vacuum System
98//
99
100// Bellow1
101//
dbbe5bc1 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;
be4fc320 106//
107// Flange1
108//
dbbe5bc1 109 const Float_t kRF1=8.87+0.4;
110 const Float_t kDFlange=0.1;
be4fc320 111
112//
113// Bellow2
114//
dbbe5bc1 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;
be4fc320 119//
120// Flange2
121//
dbbe5bc1 122 const Float_t kRF2=18.5;
be4fc320 123
124//
125// Chamber positions
126//
be4fc320 127
8a5343fc 128const Float_t kZch11 = 517.70;
129const Float_t kZch12 = 553.70;
af45076b 130const Float_t kZch21 = 661.30;
131const Float_t kZch22 = 709.90;
8a5343fc 132const Float_t kZch31 = 951.25;
133const Float_t kZch32 = 1014.75;
134const Float_t kZch41 = 1259.90;
135const Float_t kZch42 = 1324.10;
136const Float_t kZch51 = 1390.00;
137const Float_t kZch52 = 1454.20;
be4fc320 138#endif
139