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25 // 25 //
26 // 26 //
27 // ------------------------------------------- 27 // -------------------------------------------------------------------
28 // 28 //
29 // GEANT4 Class file 29 // GEANT4 Class file
30 // 30 //
31 // 31 //
32 // File name: G4Generator2BS 32 // File name: G4Generator2BS
33 // 33 //
34 // Author: Andreia Trindade (andreia@lip.p 34 // Author: Andreia Trindade (andreia@lip.pt)
35 // Pedro Rodrigues (psilva@lip.pt 35 // Pedro Rodrigues (psilva@lip.pt)
36 // Luis Peralta (luis@lip.pt) 36 // Luis Peralta (luis@lip.pt)
37 // 37 //
38 // Creation date: 2 June 2003 38 // Creation date: 2 June 2003
39 // 39 //
40 // Modifications: 40 // Modifications:
41 // 02 Jun 2003 First implementation acording 41 // 02 Jun 2003 First implementation acording with new design
42 // 12 Oct 2010 V.Ivanchenko moved RejectionFu 42 // 12 Oct 2010 V.Ivanchenko moved RejectionFunction inline
43 // 43 //
44 // 44 //
45 // Class Description: 45 // Class Description:
46 // 46 //
47 // Concrete class for Bremsstrahlung Angular D 47 // Concrete class for Bremsstrahlung Angular Distribution Generation
48 // 2BS Distribution 48 // 2BS Distribution
49 // 49 //
50 50
51 // ------------------------------------------- 51 // -------------------------------------------------------------------
52 // 52 //
53 53
54 #ifndef G4Generator2BS_h 54 #ifndef G4Generator2BS_h
55 #define G4Generator2BS_h 1 55 #define G4Generator2BS_h 1
56 56
57 #include "G4ios.hh" 57 #include "G4ios.hh"
58 #include "globals.hh" 58 #include "globals.hh"
59 #include "G4VEmAngularDistribution.hh" 59 #include "G4VEmAngularDistribution.hh"
60 #include "G4Log.hh" 60 #include "G4Log.hh"
61 61
62 class G4Pow; 62 class G4Pow;
63 63
64 class G4Generator2BS : public G4VEmAngularDist 64 class G4Generator2BS : public G4VEmAngularDistribution
65 { 65 {
66 66
67 public: 67 public:
68 68
69 explicit G4Generator2BS(const G4String& name 69 explicit G4Generator2BS(const G4String& name="");
70 70
71 virtual ~G4Generator2BS(); 71 virtual ~G4Generator2BS();
72 72
73 G4ThreeVector& SampleDirection(const G4Dynam 73 G4ThreeVector& SampleDirection(const G4DynamicParticle* dp,
74 G4double out_energy, 74 G4double out_energy,
75 G4int Z, 75 G4int Z,
76 const G4Material* mat = nullptr) over 76 const G4Material* mat = nullptr) override;
77 77
78 void PrintGeneratorInformation() const overr 78 void PrintGeneratorInformation() const override;
79 79
80 G4Generator2BS & operator=(const G4Generato 80 G4Generator2BS & operator=(const G4Generator2BS &right)= delete;
81 G4Generator2BS(const G4Generator2BS&) = del 81 G4Generator2BS(const G4Generator2BS&) = delete;
82 82
83 protected: 83 protected:
84 inline G4double RejectionFunction(G4double v 84 inline G4double RejectionFunction(G4double value) const;
85 85
86 private: 86 private:
87 G4Pow* g4pow; 87 G4Pow* g4pow;
88 88
89 G4double fz; 89 G4double fz;
90 G4double ratio; 90 G4double ratio;
91 G4double ratio1; 91 G4double ratio1;
92 G4double ratio2; 92 G4double ratio2;
93 G4double delta; 93 G4double delta;
94 94
95 G4int nwarn; 95 G4int nwarn;
96 96
97 }; 97 };
98 98
99 inline G4double G4Generator2BS::RejectionFunct 99 inline G4double G4Generator2BS::RejectionFunction(G4double y) const
100 { 100 {
101 G4double y2 = (1 + y)*(1 + y); 101 G4double y2 = (1 + y)*(1 + y);
102 G4double x = 4*y*ratio/y2; 102 G4double x = 4*y*ratio/y2;
103 return 4*x - ratio1 - (ratio2 - x)*G4Log(del 103 return 4*x - ratio1 - (ratio2 - x)*G4Log(delta + fz/y2);
104 } 104 }
105 105
106 #endif 106 #endif
107 107
108 108