6 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. */
11 const Float_t kZTwoDeg = 128.863;
12 // start of the absorber
13 const Float_t kZAbsStart = 90.;
15 const Float_t kZNose = 102.;
16 // end of the 5deg line below the TPC field cage
17 const Float_t kZConeTPC = 285.;
18 // start of concrete absorber
19 const Float_t kZAbsCc = 315.;
21 // max acceptance angle
22 const Float_t kAccMax = 10.*kDegrad;
24 const Float_t kTheta1 = 24.*kDegrad;
25 // angle of second outer cone below field cage
26 const Float_t kTheta2 = 5. *kDegrad;
27 // outer angler of W rear shield
28 const Float_t kThetaR = 3. *kDegrad;
30 // thicknesses defining the absorber
31 // ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
33 const Float_t kDSteel = 1.;
34 // poly-ethylene layer
35 const Float_t kDPoly = 5.0;