| Geant4 Cross Reference |
1 //
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24 // ********************************************************************
25
26 // class description
27 //
28 // The class contains few (physical) quantities related to the Ionisation
29 // process, for the Element defined by its atomic number Z
30 //
31 // 09.03.01: copy constructor and assignement operator in public (mma)
32 // 09.07.98: data moved from G4Element (mma)
33
34 #ifndef G4IonisParamElm_HH
35 #define G4IonisParamElm_HH
36
37 #include "G4ios.hh"
38 #include "globals.hh"
39
40 class G4IonisParamElm
41 {
42 public: // with description
43 G4IonisParamElm(G4double Z);
44 ~G4IonisParamElm();
45 G4IonisParamElm& operator=(const G4IonisParamElm&) = delete;
46 G4IonisParamElm(G4IonisParamElm&) = delete;
47
48 // retrieval methods
49
50 // atomic number Z
51 G4double GetZ() const { return fZ; }
52
53 // std::pow (Z,1/3)
54 G4double GetZ3() const { return fZ3; }
55
56 // std::pow (Z(Z+1),1/3)
57 G4double GetZZ3() const { return fZZ3; }
58
59 // std::log(Z)/3
60 G4double GetlogZ3() const { return flogZ3; }
61
62 // 0.1*std::pow(Z,1/3)*MeV/proton_mass_c2
63 G4double GetTau0() const { return fTau0; };
64
65 // 2*MeV/proton mass
66 G4double GetTaul() const { return fTaul; }
67
68 // parameters for the low energy ion.loss
69 G4double GetAlow() const { return fAlow; }
70 G4double GetBlow() const { return fBlow; }
71 G4double GetClow() const { return fClow; }
72
73 // ICRU'37 report
74 G4double GetMeanExcitationEnergy() const { return fMeanExcitationEnergy; }
75
76 G4double GetFermiVelocity() const { return fVFermi; };
77 G4double GetLFactor() const { return fLFactor; };
78
79 // shell correction coefficients
80 G4double* GetShellCorrectionVector() const { return fShellCorrectionVector; }
81
82 G4bool operator==(const G4IonisParamElm&) const = delete;
83 G4bool operator!=(const G4IonisParamElm&) const = delete;
84
85 private:
86 //
87 // data members
88 //
89 G4double fZ; // effective Z
90 G4double fZ3; // std::pow (Z,1/3)
91 G4double fZZ3; // std::pow (Z(Z+1),1/3)
92 G4double flogZ3; // std::log(Z)/3
93
94 // ------ ionisation loss ---------------------------------
95
96 G4double fTau0; // 0.1*std::pow(Z,1/3)*MeV/proton_mass_c2
97 G4double fTaul; // 2*MeV/proton mass
98 G4double fBetheBlochLow; // Bethe-Bloch at fTaul*particle mass
99 G4double fAlow, fBlow, fClow; // parameters for the low energy ion.loss
100 G4double fMeanExcitationEnergy; //
101 G4double* fShellCorrectionVector; // shell correction coefficients
102
103 // parameters for ion corrections computations
104 G4double fVFermi;
105 G4double fLFactor;
106 };
107
108 #endif
109