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25 // 25 //
>> 26 // $Id: G4Generator2BS.hh,v 1.5 2010-10-14 14:00:29 vnivanch Exp $
>> 27 // GEANT4 tag $Name: not supported by cvs2svn $
26 // 28 //
27 // ------------------------------------------- 29 // -------------------------------------------------------------------
28 // 30 //
29 // GEANT4 Class file 31 // GEANT4 Class file
30 // 32 //
31 // 33 //
32 // File name: G4Generator2BS 34 // File name: G4Generator2BS
33 // 35 //
34 // Author: Andreia Trindade (andreia@lip.p 36 // Author: Andreia Trindade (andreia@lip.pt)
35 // Pedro Rodrigues (psilva@lip.pt 37 // Pedro Rodrigues (psilva@lip.pt)
36 // Luis Peralta (luis@lip.pt) 38 // Luis Peralta (luis@lip.pt)
37 // 39 //
38 // Creation date: 2 June 2003 40 // Creation date: 2 June 2003
39 // 41 //
40 // Modifications: 42 // Modifications:
41 // 02 Jun 2003 First implementation acording 43 // 02 Jun 2003 First implementation acording with new design
42 // 12 Oct 2010 V.Ivanchenko moved RejectionFu 44 // 12 Oct 2010 V.Ivanchenko moved RejectionFunction inline
43 // 45 //
44 // 46 //
45 // Class Description: 47 // Class Description:
46 // 48 //
47 // Concrete class for Bremsstrahlung Angular D 49 // Concrete class for Bremsstrahlung Angular Distribution Generation
48 // 2BS Distribution 50 // 2BS Distribution
49 // 51 //
50 52
51 // ------------------------------------------- 53 // -------------------------------------------------------------------
52 // 54 //
53 55
54 #ifndef G4Generator2BS_h 56 #ifndef G4Generator2BS_h
55 #define G4Generator2BS_h 1 57 #define G4Generator2BS_h 1
56 58
57 #include "G4ios.hh" 59 #include "G4ios.hh"
58 #include "globals.hh" 60 #include "globals.hh"
59 #include "G4VEmAngularDistribution.hh" << 61 #include "G4VBremAngularDistribution.hh"
60 #include "G4Log.hh" <<
61 62
62 class G4Pow; 63 class G4Pow;
63 64
64 class G4Generator2BS : public G4VEmAngularDist << 65 class G4Generator2BS : public G4VBremAngularDistribution
65 { 66 {
66 67
67 public: 68 public:
68 69
69 explicit G4Generator2BS(const G4String& name << 70 G4Generator2BS(const G4String& name="");
70 71
71 virtual ~G4Generator2BS(); 72 virtual ~G4Generator2BS();
72 73
73 G4ThreeVector& SampleDirection(const G4Dynam << 74 G4double PolarAngle(const G4double initial_energy,
74 G4double out_energy, << 75 const G4double final_energy,
75 G4int Z, << 76 const G4int Z);
76 const G4Material* mat = nullptr) over <<
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:
>> 85
>> 86 G4double z;
>> 87 G4double rejection_argument1, rejection_argument2, rejection_argument3;
>> 88 G4double EnergyRatio;
>> 89
87 G4Pow* g4pow; 90 G4Pow* g4pow;
88 <<
89 G4double fz; <<
90 G4double ratio; <<
91 G4double ratio1; <<
92 G4double ratio2; <<
93 G4double delta; <<
94 91
95 G4int nwarn; << 92 // hide assignment operator
>> 93 G4Generator2BS & operator=(const G4Generator2BS &right);
>> 94 G4Generator2BS(const G4Generator2BS&);
96 95
97 }; 96 };
98 97
99 inline G4double G4Generator2BS::RejectionFunct << 98 inline G4double G4Generator2BS::RejectionFunction(G4double value) const
100 { 99 {
101 G4double y2 = (1 + y)*(1 + y); << 100 G4double argument = (1+value)*(1+value);
102 G4double x = 4*y*ratio/y2; << 101 return (4+std::log(rejection_argument3+(z/argument)))*
103 return 4*x - ratio1 - (ratio2 - x)*G4Log(del << 102 ((4*EnergyRatio*value/argument)-rejection_argument1)+rejection_argument2;
104 } 103 }
105 104
106 #endif 105 #endif
107 106
108 107