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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: G4eIonisationSpectrum 32 // File name: G4eIonisationSpectrum
33 // 33 //
34 // Author: V.Ivanchenko (Vladimir.Ivant 34 // Author: V.Ivanchenko (Vladimir.Ivantchenko@cern.ch)
35 // 35 //
36 // Creation date: 27 September 2001 36 // Creation date: 27 September 2001
37 // 37 //
38 // Modifications: 38 // Modifications:
39 // 10.10.01 MGP Revision to improv 39 // 10.10.01 MGP Revision to improve code quality and
40 // consistency with d 40 // consistency with design
41 // 29.11.01 V.Ivanchenko Parametrisation is 41 // 29.11.01 V.Ivanchenko Parametrisation is updated
42 // 30.05.02 VI Add inline functio 42 // 30.05.02 VI Add inline functions
43 // 43 //
44 // ------------------------------------------- 44 // -------------------------------------------------------------------
45 45
46 // Class Description: 46 // Class Description:
47 // Provides various integration over delta-ele 47 // Provides various integration over delta-electron spectrum for e-
48 // ionisation process. Spectrum is parametrise 48 // ionisation process. Spectrum is parametrised accourding to
49 // EEDL database, details are described in the 49 // EEDL database, details are described in the Physics Reference Manual
50 // Further documentation available from http:/ 50 // Further documentation available from http://www.ge.infn.it/geant4/lowE
51 51
52 // ------------------------------------------- 52 // -------------------------------------------------------------------
53 53
54 #ifndef G4EIONISATIONSPECTRUM_HH 54 #ifndef G4EIONISATIONSPECTRUM_HH
55 #define G4EIONISATIONSPECTRUM_HH 1 55 #define G4EIONISATIONSPECTRUM_HH 1
56 56
57 #include "G4VEnergySpectrum.hh" 57 #include "G4VEnergySpectrum.hh"
58 #include "G4eIonisationParameters.hh" 58 #include "G4eIonisationParameters.hh"
59 59
60 //class G4eIonisationParameters; 60 //class G4eIonisationParameters;
61 class G4DataVector; 61 class G4DataVector;
62 62
63 class G4eIonisationSpectrum : public G4VEnergy 63 class G4eIonisationSpectrum : public G4VEnergySpectrum
64 { 64 {
65 65
66 public: 66 public:
67 67
68 G4eIonisationSpectrum(); 68 G4eIonisationSpectrum();
69 69
70 ~G4eIonisationSpectrum(); 70 ~G4eIonisationSpectrum();
71 71
72 G4double Probability(G4int Z, G4double tMin, 72 G4double Probability(G4int Z, G4double tMin, G4double tMax,
73 G4double kineticEnergy, G4int shell 73 G4double kineticEnergy, G4int shell,
74 const G4ParticleDefinition* pd=0) c 74 const G4ParticleDefinition* pd=0) const;
75 75
76 G4double AverageEnergy(G4int Z, G4double tMi 76 G4double AverageEnergy(G4int Z, G4double tMin, G4double tMax,
77 G4double kineticEnergy, G4int shell, 77 G4double kineticEnergy, G4int shell,
78 const G4ParticleDefinition* pd=0) const 78 const G4ParticleDefinition* pd=0) const;
79 79
80 G4double SampleEnergy(G4int Z, G4double tMin 80 G4double SampleEnergy(G4int Z, G4double tMin, G4double tMax,
81 G4double kineticEnergy, G4int shell, 81 G4double kineticEnergy, G4int shell,
82 const G4ParticleDefinition* pd=0) const; 82 const G4ParticleDefinition* pd=0) const;
83 83
84 G4double MaxEnergyOfSecondaries(G4double kin 84 G4double MaxEnergyOfSecondaries(G4double kineticEnergy,
85 G4int Z = 0, 85 G4int Z = 0,
86 const G4ParticleDefinition* pd=0) co 86 const G4ParticleDefinition* pd=0) const;
87 87
88 G4double Excitation(G4int Z, G4double e) con 88 G4double Excitation(G4int Z, G4double e) const;
89 89
90 void PrintData() const; 90 void PrintData() const;
91 91
92 protected: 92 protected:
93 93
94 private: 94 private:
95 95
96 G4double IntSpectrum(G4double xMin, G4double 96 G4double IntSpectrum(G4double xMin, G4double xMax,
97 const G4DataVector& p 97 const G4DataVector& p) const;
98 98
99 G4double AverageValue(G4double xMin, G4doubl 99 G4double AverageValue(G4double xMin, G4double xMax,
100 const G4DataVector& p) const; 100 const G4DataVector& p) const;
101 101
102 G4double Function(G4double x, const G4DataVe 102 G4double Function(G4double x, const G4DataVector& p) const;
103 103
104 // Hide copy constructor and assignment oper 104 // Hide copy constructor and assignment operator
105 G4eIonisationSpectrum(const G4eIonisationSp 105 G4eIonisationSpectrum(const G4eIonisationSpectrum&);
106 G4eIonisationSpectrum & operator = (const G4 106 G4eIonisationSpectrum & operator = (const G4eIonisationSpectrum &right);
107 107
108 private: 108 private:
109 109
110 G4eIonisationParameters* theParam; 110 G4eIonisationParameters* theParam;
111 G4double lowestE; 111 G4double lowestE;
112 G4double factor; 112 G4double factor;
113 G4int iMax; 113 G4int iMax;
114 G4int verbose; 114 G4int verbose;
115 }; 115 };
116 116
117 117
118 inline G4double G4eIonisationSpectrum::Functio 118 inline G4double G4eIonisationSpectrum::Function(G4double x,
119 const G4DataVector& p) const 119 const G4DataVector& p) const
120 { 120 {
121 G4double f = 1.0 - p[0] - p[iMax]*x 121 G4double f = 1.0 - p[0] - p[iMax]*x
122 + x*x*(1.0 - p[iMax] + (1.0/(1.0 122 + x*x*(1.0 - p[iMax] + (1.0/(1.0 - x) - p[iMax])/(1.0 - x))
123 + 0.5*p[0]/x; 123 + 0.5*p[0]/x;
124 124
125 return f; 125 return f;
126 } 126 }
127 127
128 inline G4double G4eIonisationSpectrum::Excitat 128 inline G4double G4eIonisationSpectrum::Excitation(G4int Z, G4double e) const
129 { 129 {
130 return theParam->Excitation(Z, e); 130 return theParam->Excitation(Z, e);
131 } 131 }
132 132
133 133
134 #endif 134 #endif
135 135