3 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
8 //-------------------------------------------------------------------------
9 // Constant magnetic field class
10 // Used by AliRun class
12 //-------------------------------------------------------------------------
16 class AliMagFC : public AliMagF
18 //Alice Constant Magnetic Field
22 AliMagFC(const char *name, const char *title, Int_t integ,
23 Float_t factor, Float_t fmax);
24 virtual ~AliMagFC() {}
25 virtual void Field(Float_t *x, Float_t *b) const;
26 virtual void ReadField() {}
27 virtual void ZDCField(Float_t *x, Float_t *b) const;
28 ClassDef(AliMagFC,1) //Class for all Alice Constant MagField
32 //ZDC part -------------------------------------------------------------------
34 // ************************ LHC optics v6.5 *****************************
35 static const Float_t kG1=20.757;
36 static const Float_t kFDIP=-37.866;
37 static const Float_t kFCORN2=-9.6979;
39 // ZBEG Beginning of the inner triplet
40 // D1BEG Beginning of separator dipole 1
41 // D2BEG Beginning of separator dipole 2
42 // CORBEG Corrector dipole beginning (because of dimuon arm)
44 static const Float_t kCORBEG2 = -1972.5,kCOREND2 = kCORBEG2 - 153., kCOR2RA2 = 4.5 * 4.5;
46 static const Float_t kZBEG = -2296.5;
47 static const Float_t kZ1BEG = kZBEG + 0., kZ1END = kZ1BEG - 637.,kZ1RA2 = 3.5 * 3.5;
48 static const Float_t kZ2BEG = kZBEG - 908.5, kZ2END = kZ2BEG - 550.,kZ2RA2 = 3.5 * 3.5;
49 static const Float_t kZ3BEG = kZBEG - 1558.5, kZ3END = kZ3BEG - 550.,kZ3RA2 = 3.5 * 3.5;
50 static const Float_t kZ4BEG = kZBEG - 2430., kZ4END = kZ4BEG - 637.,kZ4RA2 = 3.5 * 3.5;
51 static const Float_t kD1BEG = - 5838.3 ,kD1END = kD1BEG - 945., kD1RA2 = 4.5 * 4.5;
52 static const Float_t kD2BEG = - 12167.8 ,kD2END = kD2BEG - 945., kD2RA2 = 4.5 * 4.5;
54 static const Float_t kXCEN1D2 = -9.7 ,kYCEN1D2 = 0.;
55 static const Float_t kXCEN2D2 = 9.7 ,kYCEN2D2 = 0.;
57 //ZDC part -------------------------------------------------------------------