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G4Generator2BS.hh
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25 //
26 //
27 // -------------------------------------------------------------------
28 //
29 // GEANT4 Class file
30 //
31 //
32 // File name: G4Generator2BS
33 //
34 // Author: Andreia Trindade (andreia@lip.pt)
35 // Pedro Rodrigues (psilva@lip.pt)
36 // Luis Peralta (luis@lip.pt)
37 //
38 // Creation date: 2 June 2003
39 //
40 // Modifications:
41 // 02 Jun 2003 First implementation acording with new design
42 // 12 Oct 2010 V.Ivanchenko moved RejectionFunction inline
43 //
44 //
45 // Class Description:
46 //
47 // Concrete class for Bremsstrahlung Angular Distribution Generation
48 // 2BS Distribution
49 //
50 
51 // -------------------------------------------------------------------
52 //
53 
54 #ifndef G4Generator2BS_h
55 #define G4Generator2BS_h 1
56 
57 #include "G4ios.hh"
58 #include "globals.hh"
60 #include "G4Log.hh"
61 
62 class G4Pow;
63 
65 {
66 
67 public:
68 
69  explicit G4Generator2BS(const G4String& name="");
70 
71  virtual ~G4Generator2BS();
72 
74  G4double out_energy,
75  G4int Z,
76  const G4Material* mat = nullptr);
77 
78  void PrintGeneratorInformation() const;
79 
80 protected:
81 
83 
84 private:
85 
86  // hide assignment operator
87  G4Generator2BS & operator=(const G4Generator2BS &right)= delete;
88  G4Generator2BS(const G4Generator2BS&) = delete;
89 
95 
98 
99 };
100 
102 {
103  G4double y2 = (1 + y)*(1 + y);
104  G4double x = 4*y*ratio/y2;
105  return 4*x - ratio1 - (ratio2 - x)*G4Log(delta + fz/y2);
106 }
107 
108 #endif
109