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1 // 1 //
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24 // ******************************************* 21 // ********************************************************************
25 // 22 //
26 // 23 //
27 // ------------------------------------------- 24 // -------------------------------------------------------------------
28 // 25 //
29 // GEANT4 Class file 26 // GEANT4 Class file
30 // 27 //
31 // 28 //
32 // File name: G4Generator2BS 29 // File name: G4Generator2BS
33 // 30 //
34 // Author: Andreia Trindade (andreia@lip.p 31 // Author: Andreia Trindade (andreia@lip.pt)
35 // Pedro Rodrigues (psilva@lip.pt 32 // Pedro Rodrigues (psilva@lip.pt)
36 // Luis Peralta (luis@lip.pt) 33 // Luis Peralta (luis@lip.pt)
37 // 34 //
38 // Creation date: 2 June 2003 35 // Creation date: 2 June 2003
39 // 36 //
40 // Modifications: 37 // Modifications:
41 // 02 Jun 2003 First implementation acording << 38 // 02 Jun 2003 First implementation acording with new design
42 // 12 Oct 2010 V.Ivanchenko moved RejectionFu <<
43 // 39 //
44 // 40 //
45 // Class Description: 41 // Class Description:
46 // 42 //
47 // Concrete class for Bremsstrahlung Angular D << 43 // Concrete class for Bremsstrahlung Angular Distribution Generation - 2BS Distribution
48 // 2BS Distribution << 44 // Further documentation available from http://www.ge.infn.it/geant4/lowE
49 // <<
50 45
51 // ------------------------------------------- 46 // -------------------------------------------------------------------
52 // 47 //
53 48
54 #ifndef G4Generator2BS_h 49 #ifndef G4Generator2BS_h
55 #define G4Generator2BS_h 1 50 #define G4Generator2BS_h 1
56 51
57 #include "G4ios.hh" 52 #include "G4ios.hh"
58 #include "globals.hh" 53 #include "globals.hh"
59 #include "G4VEmAngularDistribution.hh" << 54 #include "G4VBremAngularDistribution.hh"
60 #include "G4Log.hh" <<
61 <<
62 class G4Pow; <<
63 55
64 class G4Generator2BS : public G4VEmAngularDist << 56 class G4Generator2BS : public G4VBremAngularDistribution
65 { 57 {
66 58
67 public: 59 public:
68 60
69 explicit G4Generator2BS(const G4String& name << 61 G4Generator2BS(const G4String& name);
70 62
71 virtual ~G4Generator2BS(); << 63 ~G4Generator2BS();
72 64
73 G4ThreeVector& SampleDirection(const G4Dynam << 65 G4double PolarAngle(const G4double initial_energy,
74 G4double out_energy, << 66 const G4double final_energy,
75 G4int Z, << 67 const G4int Z);
76 const G4Material* mat = nullptr) over <<
77 68
78 void PrintGeneratorInformation() const overr << 69 void PrintGeneratorInformation() const;
79 <<
80 G4Generator2BS & operator=(const G4Generato <<
81 G4Generator2BS(const G4Generator2BS&) = del <<
82 70
83 protected: 71 protected:
84 inline G4double RejectionFunction(G4double v <<
85 72
86 private: << 73 G4double RejectionFunction(G4double value) const;
87 G4Pow* g4pow; <<
88 <<
89 G4double fz; <<
90 G4double ratio; <<
91 G4double ratio1; <<
92 G4double ratio2; <<
93 G4double delta; <<
94 74
95 G4int nwarn; << 75 private:
>> 76 G4double z;
>> 77 G4double rejection_argument1, rejection_argument2, rejection_argument3;
>> 78 G4double EnergyRatio;
>> 79
>> 80 // hide assignment operator
>> 81 G4Generator2BS & operator=(const G4Generator2BS &right);
>> 82 G4Generator2BS(const G4Generator2BS&);
96 83
97 }; 84 };
98 <<
99 inline G4double G4Generator2BS::RejectionFunct <<
100 { <<
101 G4double y2 = (1 + y)*(1 + y); <<
102 G4double x = 4*y*ratio/y2; <<
103 return 4*x - ratio1 - (ratio2 - x)*G4Log(del <<
104 } <<
105 85
106 #endif 86 #endif
107 87
108 88