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15a7563b | 1 | #ifndef ABSOCONST_H |
2 | #define ABSOCONST_H | |
3 | ||
4 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. */ | |
5 | ||
6 | /* $Id$ */ | |
7 | ||
8 | // start of 2deg cone | |
9 | const Float_t zTwoDeg = 117.40864; | |
10 | // start of the absorber | |
11 | const Float_t zAbsStart = 90.; | |
12 | // end of the W-nose | |
13 | const Float_t zNose = 102.; | |
14 | // end of the 5deg line below the TPC field cage | |
15 | const Float_t zConeTPC = 285.; | |
16 | // start of concrete absorber | |
17 | const Float_t zAbsCc = 315.; | |
18 | ||
19 | // max acceptance angle | |
20 | const Float_t accMax = 10.*kDegrad; | |
21 | // angle of nose | |
22 | const Float_t theta1 = 24.*kDegrad; | |
23 | // angle of second outer cone below field cage | |
24 | const Float_t theta2 = 5. *kDegrad; | |
25 | // outer angler of W rear shield | |
26 | const Float_t thetaR = 3. *kDegrad; | |
27 | // | |
28 | // thicknesses defining the absorber | |
29 | // ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | |
30 | // steel envelope | |
31 | const Float_t dSteel = 1.; | |
32 | // poly-ethylene layer | |
33 | const Float_t dPoly = 5.0; | |
34 | ||
35 | ||
36 | ||
37 | ||
38 | #endif |