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G4Generator2BS.hh
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26 // $Id: G4Generator2BS.hh 66241 2012-12-13 18:34:42Z gunter $
27 //
28 // -------------------------------------------------------------------
29 //
30 // GEANT4 Class file
31 //
32 //
33 // File name: G4Generator2BS
34 //
35 // Author: Andreia Trindade (andreia@lip.pt)
36 // Pedro Rodrigues (psilva@lip.pt)
37 // Luis Peralta (luis@lip.pt)
38 //
39 // Creation date: 2 June 2003
40 //
41 // Modifications:
42 // 02 Jun 2003 First implementation acording with new design
43 // 12 Oct 2010 V.Ivanchenko moved RejectionFunction inline
44 //
45 //
46 // Class Description:
47 //
48 // Concrete class for Bremsstrahlung Angular Distribution Generation
49 // 2BS Distribution
50 //
51 
52 // -------------------------------------------------------------------
53 //
54 
55 #ifndef G4Generator2BS_h
56 #define G4Generator2BS_h 1
57 
58 #include "G4ios.hh"
59 #include "globals.hh"
61 
62 class G4Pow;
63 
65 {
66 
67 public:
68 
69  G4Generator2BS(const G4String& name="");
70 
71  virtual ~G4Generator2BS();
72 
74  G4double out_energy,
75  G4int Z,
76  const G4Material* mat = 0);
77 
78  void PrintGeneratorInformation() const;
79 
80 protected:
81 
83 
84 private:
85 
86  // hide assignment operator
87  G4Generator2BS & operator=(const G4Generator2BS &right);
89 
90  G4double fz;
91  G4double ratio;
92  G4double ratio1;
93  G4double ratio2;
94  G4double delta;
95 
96  G4Pow* g4pow;
97  G4int nwarn;
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)*std::log(delta + fz/y2);
106 }
107 
108 #endif
109 
const XML_Char * name
Definition: expat.h:151
G4double RejectionFunction(G4double value) const
Definition: G4Pow.hh:56
void PrintGeneratorInformation() const
int G4int
Definition: G4Types.hh:78
const XML_Char int const XML_Char * value
Definition: expat.h:331
double G4double
Definition: G4Types.hh:76
G4Generator2BS(const G4String &name="")
virtual G4ThreeVector & SampleDirection(const G4DynamicParticle *dp, G4double out_energy, G4int Z, const G4Material *mat=0)
virtual ~G4Generator2BS()