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25 // 25 //
26 // 26 //
27 // ------------------------------------------- 27 // -------------------------------------------------------------------
28 // 28 //
29 // GEANT4 Class header file 29 // GEANT4 Class header file
30 // 30 //
31 // 31 //
32 // File name: G4IonFluctuations 32 // File name: G4IonFluctuations
33 // 33 //
34 // Author: Vladimir Ivanchenko 34 // Author: Vladimir Ivanchenko
35 // 35 //
36 // Creation date: 02.04.2003 36 // Creation date: 02.04.2003
37 // 37 //
38 // Modifications: 38 // Modifications:
39 // 39 //
40 // 16-10-03 Changed interface to Initialisatio 40 // 16-10-03 Changed interface to Initialisation (V.Ivanchenko)
41 // 01-06-08 Added initialisation of effective 41 // 01-06-08 Added initialisation of effective charge prestep (V.Ivanchenko)
42 // 42 //
43 // Class Description: 43 // Class Description:
44 // 44 //
45 // Implementation of ion energy loss fluctuati 45 // Implementation of ion energy loss fluctuations
46 46
47 // ------------------------------------------- 47 // -------------------------------------------------------------------
48 // 48 //
49 49
50 #ifndef G4IonFluctuations_h 50 #ifndef G4IonFluctuations_h
51 #define G4IonFluctuations_h 1 51 #define G4IonFluctuations_h 1
52 52
53 #include "G4VEmFluctuationModel.hh" 53 #include "G4VEmFluctuationModel.hh"
54 #include "G4ParticleDefinition.hh" 54 #include "G4ParticleDefinition.hh"
55 55
56 class G4Pow; 56 class G4Pow;
57 class G4UniversalFluctuation; 57 class G4UniversalFluctuation;
58 58
59 class G4IonFluctuations : public G4VEmFluctuat 59 class G4IonFluctuations : public G4VEmFluctuationModel
60 { 60 {
61 61
62 public: 62 public:
63 63
64 explicit G4IonFluctuations(const G4String& n 64 explicit G4IonFluctuations(const G4String& nam = "IonFluc");
65 65
66 ~G4IonFluctuations() override; 66 ~G4IonFluctuations() override;
67 67
68 // Sample fluctuations 68 // Sample fluctuations
69 G4double SampleFluctuations(const G4Material 69 G4double SampleFluctuations(const G4MaterialCutsCouple*,
70 const G4DynamicParticle*, 70 const G4DynamicParticle*,
71 const G4double tcut, 71 const G4double tcut,
72 const G4double tmax, 72 const G4double tmax,
73 const G4double length, 73 const G4double length,
74 const G4double meanLoss) override; 74 const G4double meanLoss) override;
75 75
76 // Compute dispertion 76 // Compute dispertion
77 G4double Dispersion(const G4Material*, 77 G4double Dispersion(const G4Material*,
78 const G4DynamicParticle*, 78 const G4DynamicParticle*,
79 const G4double tcut, 79 const G4double tcut,
80 const G4double tmax, 80 const G4double tmax,
81 const G4double length) override; 81 const G4double length) override;
82 82
83 // Initialisation prerun 83 // Initialisation prerun
84 void InitialiseMe(const G4ParticleDefinition 84 void InitialiseMe(const G4ParticleDefinition*) override;
85 85
86 // Initialisation prestep 86 // Initialisation prestep
87 void SetParticleAndCharge(const G4ParticleDe 87 void SetParticleAndCharge(const G4ParticleDefinition*,
88 G4double q2) override; 88 G4double q2) override;
89 89
90 // hide assignment operator 90 // hide assignment operator
91 G4IonFluctuations & operator=(const G4IonFl 91 G4IonFluctuations & operator=(const G4IonFluctuations &right) = delete;
92 G4IonFluctuations(const G4IonFluctuations&) 92 G4IonFluctuations(const G4IonFluctuations&) = delete;
93 93
94 private: 94 private:
95 95
96 G4double Factor(const G4Material*, G4double 96 G4double Factor(const G4Material*, G4double Zeff);
97 G4double RelativisticFactor(const G4Material 97 G4double RelativisticFactor(const G4Material*, G4double Zeff);
98 98
99 const G4ParticleDefinition* particle = nullp 99 const G4ParticleDefinition* particle = nullptr;
100 G4UniversalFluctuation* uniFluct; 100 G4UniversalFluctuation* uniFluct;
101 G4Pow* g4calc; 101 G4Pow* g4calc;
102 102
103 G4double particleMass; 103 G4double particleMass;
104 G4double charge = 1.0; 104 G4double charge = 1.0;
105 G4double chargeSquare = 1.0; 105 G4double chargeSquare = 1.0;
106 G4double effChargeSquare = 1.0; 106 G4double effChargeSquare = 1.0;
107 107
108 // data members to speed up the fluctuation 108 // data members to speed up the fluctuation calculation
109 G4double parameter; 109 G4double parameter;
110 G4double theBohrBeta2; 110 G4double theBohrBeta2;
111 G4double minFraction = 0.2; 111 G4double minFraction = 0.2;
112 G4double xmin = 0.2; 112 G4double xmin = 0.2;
113 G4double minLoss; 113 G4double minLoss;
114 // cash 114 // cash
115 G4double kineticEnergy = 0.0; 115 G4double kineticEnergy = 0.0;
116 G4double beta2 = 0.0; 116 G4double beta2 = 0.0;
117 }; 117 };
118 118
119 //....oooOO0OOooo........oooOO0OOooo........oo 119 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
120 120
121 #endif 121 #endif
122 122
123 123