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25 //
26 //
27 // -------------------------------------------------------------------
28 //
29 // GEANT4 Class header file
30 //
31 //
32 // File name: G4BraggIonModel
33 //
34 // Author: Vladimir Ivanchenko
35 //
36 // Creation date: 13.10.2004
37 //
38 // Modifications:
39 // 09-11-04 Migration to new interface of Store/Retrieve tables (V.Ivantchenko)
40 // 11-05-05 Major optimisation of internal interfaces (V.Ivantchenko)
41 // 15-02-06 ComputeCrossSectionPerElectron, ComputeCrossSectionPerAtom (mma)
42 // 25-04-06 Add stopping data from ASTAR (V.Ivanchenko)
43 // 12-08-08 Added methods GetParticleCharge, GetChargeSquareRatio,
44 // CorrectionsAlongStep needed for ions(V.Ivanchenko)
45
46 //
47 // Class Description:
48 //
49 // Implementation of energy loss and delta-electron production
50 // by heavy slow charged particles using ICRU'49, NIST, and ICRU90
51 // evaluated data for alpha and protons
52
53 // -------------------------------------------------------------------
54 //
55
56 #ifndef G4BraggIonModel_h
57 #define G4BraggIonModel_h 1
58
59 #include "G4BraggModel.hh"
60
61 class G4ASTARStopping;
62
63 class G4BraggIonModel : public G4BraggModel
64 {
65
66 public:
67
68 explicit G4BraggIonModel(const G4ParticleDefinition* p = nullptr,
69 const G4String& nam = "BraggIon");
70
71 ~G4BraggIonModel() override;
72
73 void Initialise(const G4ParticleDefinition*,
74 const G4DataVector&) override;
75
76 G4double ComputeCrossSectionPerAtom(
77 const G4ParticleDefinition*,
78 G4double kineticEnergy,
79 G4double Z, G4double A,
80 G4double cutEnergy,
81 G4double maxEnergy) override;
82
83 G4double CrossSectionPerVolume(const G4Material*,
84 const G4ParticleDefinition*,
85 G4double kineticEnergy,
86 G4double cutEnergy,
87 G4double maxEnergy) override;
88
89 G4double ComputeDEDXPerVolume(const G4Material*,
90 const G4ParticleDefinition*,
91 G4double kineticEnergy,
92 G4double cutEnergy) override;
93
94 // Compute ion charge not applied to alpha
95 G4double GetChargeSquareRatio(const G4ParticleDefinition*,
96 const G4Material*,
97 G4double kineticEnergy) override;
98
99 // add correction to energy loss and ompute non-ionizing energy loss
100 void CorrectionsAlongStep(const G4MaterialCutsCouple*,
101 const G4DynamicParticle*,
102 const G4double& length,
103 G4double& eloss) override;
104
105 // hide assignment operator
106 G4BraggIonModel & operator=(const G4BraggIonModel &right) = delete;
107 G4BraggIonModel(const G4BraggIonModel&) = delete;
108
109 private:
110
111 G4double HeEffChargeSquare(const G4double z,
112 const G4double kinEnergyInMeV) const;
113
114 G4int HasMaterialForHe(const G4Material* material) const;
115
116 G4double HeStoppingPower(const G4double kinEnergy) const;
117
118 G4double HeElectronicStoppingPower(const G4int z, const G4double kinEnergy) const;
119
120 G4double HeDEDX(const G4Material* material, const G4double kinEnergy);
121
122 static G4ASTARStopping* fASTAR;
123
124 G4double heChargeSquare = 4.0;
125 G4double HeMass;
126 G4double massFactor;
127
128 G4int iASTAR = -1; // index in ASTAR
129 G4bool isAlpha = false;
130 G4bool isFirstAlpha = false;
131 };
132
133 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
134
135 #endif
136