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25 // 25 //
>> 26 // $Id: G4IonFluctuations.hh,v 1.8 2008/10/22 16:04:33 vnivanch Exp $
>> 27 // GEANT4 tag $Name: geant4-09-02 $
26 // 28 //
27 // ------------------------------------------- 29 // -------------------------------------------------------------------
28 // 30 //
29 // GEANT4 Class header file 31 // GEANT4 Class header file
30 // 32 //
31 // 33 //
32 // File name: G4IonFluctuations 34 // File name: G4IonFluctuations
33 // 35 //
34 // Author: Vladimir Ivanchenko 36 // Author: Vladimir Ivanchenko
35 // 37 //
36 // Creation date: 02.04.2003 38 // Creation date: 02.04.2003
37 // 39 //
38 // Modifications: 40 // Modifications:
39 // 41 //
40 // 16-10-03 Changed interface to Initialisatio 42 // 16-10-03 Changed interface to Initialisation (V.Ivanchenko)
41 // 01-06-08 Added initialisation of effective 43 // 01-06-08 Added initialisation of effective charge prestep (V.Ivanchenko)
42 // 44 //
43 // Class Description: 45 // Class Description:
44 // 46 //
45 // Implementation of ion energy loss fluctuati 47 // Implementation of ion energy loss fluctuations
46 48
47 // ------------------------------------------- 49 // -------------------------------------------------------------------
48 // 50 //
49 51
50 #ifndef G4IonFluctuations_h 52 #ifndef G4IonFluctuations_h
51 #define G4IonFluctuations_h 1 53 #define G4IonFluctuations_h 1
52 54
>> 55
53 #include "G4VEmFluctuationModel.hh" 56 #include "G4VEmFluctuationModel.hh"
54 #include "G4ParticleDefinition.hh" 57 #include "G4ParticleDefinition.hh"
55 << 58 #include "G4UniversalFluctuation.hh"
56 class G4Pow; <<
57 class G4UniversalFluctuation; <<
58 59
59 class G4IonFluctuations : public G4VEmFluctuat 60 class G4IonFluctuations : public G4VEmFluctuationModel
60 { 61 {
61 62
62 public: 63 public:
63 64
64 explicit G4IonFluctuations(const G4String& n << 65 G4IonFluctuations(const G4String& nam = "IonFluc");
65 66
66 ~G4IonFluctuations() override; << 67 virtual ~G4IonFluctuations();
67 68
68 // Sample fluctuations 69 // Sample fluctuations
69 G4double SampleFluctuations(const G4Material << 70 G4double SampleFluctuations(const G4Material*,
70 const G4DynamicParticle*, << 71 const G4DynamicParticle*,
71 const G4double tcut, << 72 G4double& tmax,
72 const G4double tmax, << 73 G4double& length,
73 const G4double length, << 74 G4double& meanLoss);
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 G4double& tmax,
80 const G4double tmax, << 80 G4double& length);
81 const G4double length) override; <<
82 81
83 // Initialisation prerun 82 // Initialisation prerun
84 void InitialiseMe(const G4ParticleDefinition << 83 void InitialiseMe(const G4ParticleDefinition*);
85 84
86 // Initialisation prestep 85 // Initialisation prestep
87 void SetParticleAndCharge(const G4ParticleDe << 86 inline void SetParticleAndCharge(const G4ParticleDefinition*, G4double q2);
88 G4double q2) override; <<
89 <<
90 // hide assignment operator <<
91 G4IonFluctuations & operator=(const G4IonFl <<
92 G4IonFluctuations(const G4IonFluctuations&) <<
93 87
94 private: 88 private:
95 89
96 G4double Factor(const G4Material*, G4double 90 G4double Factor(const G4Material*, G4double Zeff);
97 G4double RelativisticFactor(const G4Material 91 G4double RelativisticFactor(const G4Material*, G4double Zeff);
98 92
99 const G4ParticleDefinition* particle = nullp << 93 // hide assignment operator
100 G4UniversalFluctuation* uniFluct; << 94 G4IonFluctuations & operator=(const G4IonFluctuations &right);
101 G4Pow* g4calc; << 95 G4IonFluctuations(const G4IonFluctuations&);
>> 96
>> 97 G4UniversalFluctuation uniFluct;
>> 98 const G4ParticleDefinition* particle;
102 99
103 G4double particleMass; 100 G4double particleMass;
104 G4double charge = 1.0; << 101 G4double charge;
105 G4double chargeSquare = 1.0; << 102 G4double chargeSquare;
106 G4double effChargeSquare = 1.0; << 103 G4double effChargeSquare;
107 104
108 // data members to speed up the fluctuation 105 // data members to speed up the fluctuation calculation
109 G4double parameter; 106 G4double parameter;
>> 107 G4double minNumberInteractionsBohr;
110 G4double theBohrBeta2; 108 G4double theBohrBeta2;
111 G4double minFraction = 0.2; << 109 G4double minFraction;
112 G4double xmin = 0.2; << 110 G4double xmin;
113 G4double minLoss; 111 G4double minLoss;
114 // cash 112 // cash
115 G4double kineticEnergy = 0.0; << 113 G4double kineticEnergy;
116 G4double beta2 = 0.0; << 114 G4double beta2;
117 }; 115 };
>> 116
>> 117 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 118
>> 119 inline
>> 120 void G4IonFluctuations::SetParticleAndCharge(const G4ParticleDefinition* part,
>> 121 G4double q2)
>> 122 {
>> 123 if(part != particle) {
>> 124 particle = part;
>> 125 particleMass = part->GetPDGMass();
>> 126 charge = part->GetPDGCharge()/eplus;
>> 127 chargeSquare = charge*charge;
>> 128 }
>> 129 effChargeSquare = q2;
>> 130 uniFluct.SetParticleAndCharge(part, q2);
>> 131 }
118 132
119 //....oooOO0OOooo........oooOO0OOooo........oo 133 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
120 134
121 #endif 135 #endif
122 136
123 137