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25 // 25 //
>> 26 // $Id: G4Generator2BS.hh 66241 2012-12-13 18:34:42Z gunter $
26 // 27 //
27 // ------------------------------------------- 28 // -------------------------------------------------------------------
28 // 29 //
29 // GEANT4 Class file 30 // GEANT4 Class file
30 // 31 //
31 // 32 //
32 // File name: G4Generator2BS 33 // File name: G4Generator2BS
33 // 34 //
34 // Author: Andreia Trindade (andreia@lip.p 35 // Author: Andreia Trindade (andreia@lip.pt)
35 // Pedro Rodrigues (psilva@lip.pt 36 // Pedro Rodrigues (psilva@lip.pt)
36 // Luis Peralta (luis@lip.pt) 37 // Luis Peralta (luis@lip.pt)
37 // 38 //
38 // Creation date: 2 June 2003 39 // Creation date: 2 June 2003
39 // 40 //
40 // Modifications: 41 // Modifications:
41 // 02 Jun 2003 First implementation acording 42 // 02 Jun 2003 First implementation acording with new design
42 // 12 Oct 2010 V.Ivanchenko moved RejectionFu 43 // 12 Oct 2010 V.Ivanchenko moved RejectionFunction inline
43 // 44 //
44 // 45 //
45 // Class Description: 46 // Class Description:
46 // 47 //
47 // Concrete class for Bremsstrahlung Angular D 48 // Concrete class for Bremsstrahlung Angular Distribution Generation
48 // 2BS Distribution 49 // 2BS Distribution
49 // 50 //
50 51
51 // ------------------------------------------- 52 // -------------------------------------------------------------------
52 // 53 //
53 54
54 #ifndef G4Generator2BS_h 55 #ifndef G4Generator2BS_h
55 #define G4Generator2BS_h 1 56 #define G4Generator2BS_h 1
56 57
57 #include "G4ios.hh" 58 #include "G4ios.hh"
58 #include "globals.hh" 59 #include "globals.hh"
59 #include "G4VEmAngularDistribution.hh" 60 #include "G4VEmAngularDistribution.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 G4Generator2BS(const G4String& name="");
70 70
71 virtual ~G4Generator2BS(); 71 virtual ~G4Generator2BS();
72 72
73 G4ThreeVector& SampleDirection(const G4Dynam << 73 virtual 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 = 0);
77 77
78 void PrintGeneratorInformation() const overr << 78 void PrintGeneratorInformation() const;
79 <<
80 G4Generator2BS & operator=(const G4Generato <<
81 G4Generator2BS(const G4Generator2BS&) = del <<
82 79
83 protected: 80 protected:
>> 81
84 inline G4double RejectionFunction(G4double v 82 inline G4double RejectionFunction(G4double value) const;
85 83
86 private: 84 private:
87 G4Pow* g4pow; << 85
88 << 86 // hide assignment operator
>> 87 G4Generator2BS & operator=(const G4Generator2BS &right);
>> 88 G4Generator2BS(const G4Generator2BS&);
>> 89
89 G4double fz; 90 G4double fz;
90 G4double ratio; 91 G4double ratio;
91 G4double ratio1; 92 G4double ratio1;
92 G4double ratio2; 93 G4double ratio2;
93 G4double delta; 94 G4double delta;
94 95
>> 96 G4Pow* g4pow;
95 G4int nwarn; 97 G4int nwarn;
96 98
97 }; 99 };
98 100
99 inline G4double G4Generator2BS::RejectionFunct 101 inline G4double G4Generator2BS::RejectionFunction(G4double y) const
100 { 102 {
101 G4double y2 = (1 + y)*(1 + y); 103 G4double y2 = (1 + y)*(1 + y);
102 G4double x = 4*y*ratio/y2; 104 G4double x = 4*y*ratio/y2;
103 return 4*x - ratio1 - (ratio2 - x)*G4Log(del << 105 return 4*x - ratio1 - (ratio2 - x)*std::log(delta + fz/y2);
104 } 106 }
105 107
106 #endif 108 #endif
107 109
108 110