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>> 26 // $Id: G4ionEffectiveCharge.hh,v 1.12 2008-09-20 19:39:34 vnivanch Exp $
>> 27 // GEANT4 tag $Name: not supported by cvs2svn $
26 // 28 //
27 // ------------------------------------------- 29 // -------------------------------------------------------------------
28 // 30 //
29 // GEANT4 Class header file 31 // GEANT4 Class header file
30 // 32 //
31 // 33 //
32 // File name: G4ionEffectiveCharge 34 // File name: G4ionEffectiveCharge
33 // 35 //
34 // Author: Vladimir Ivanchenko 36 // Author: Vladimir Ivanchenko
35 // 37 //
36 // Creation date: 03.07.2004 38 // Creation date: 03.07.2004
37 // 39 //
38 // Modifications: 40 // Modifications:
39 // 41 //
40 // 42 //
41 // Class Description: 43 // Class Description:
42 // 44 //
43 // This class manages the simulation of effect 45 // This class manages the simulation of effective charge of ions
44 // in the assumption of equilibrium between io 46 // in the assumption of equilibrium between ion shelss and media.
45 // J.F.Ziegler and J.M.Manoyan, The stopping o 47 // J.F.Ziegler and J.M.Manoyan, The stopping of ions in compaunds,
46 // Nucl. Inst. & Meth. in Phys. Res. B35 (1988 48 // Nucl. Inst. & Meth. in Phys. Res. B35 (1988) 215-228.
47 // 49 //
48 50
49 // ------------------------------------------- 51 // -------------------------------------------------------------------
50 // 52 //
51 53
52 #ifndef G4ionEffectiveCharge_h 54 #ifndef G4ionEffectiveCharge_h
53 #define G4ionEffectiveCharge_h 1 55 #define G4ionEffectiveCharge_h 1
54 56
55 #include "globals.hh" 57 #include "globals.hh"
56 #include "G4ParticleDefinition.hh" 58 #include "G4ParticleDefinition.hh"
57 59
58 class G4Material; 60 class G4Material;
59 class G4Pow; << 61 class G4NistManager;
60 62
61 class G4ionEffectiveCharge 63 class G4ionEffectiveCharge
62 { 64 {
63 65
64 public: 66 public:
65 67
66 explicit G4ionEffectiveCharge(); << 68 G4ionEffectiveCharge();
67 69
68 ~G4ionEffectiveCharge() = default; << 70 virtual ~G4ionEffectiveCharge();
69 71
70 G4double EffectiveChargeSquareRatio( 72 G4double EffectiveChargeSquareRatio(
71 const G4ParticleDef 73 const G4ParticleDefinition* p,
72 const G4Material* m 74 const G4Material* material,
73 G4double kineticEnergy); 75 G4double kineticEnergy);
74 76
75 G4double EffectiveCharge(const G4ParticleDef 77 G4double EffectiveCharge(const G4ParticleDefinition* p,
76 const G4Material* m 78 const G4Material* material,
77 G4double kineticEnergy); 79 G4double kineticEnergy);
78 80
79 // hide assignment operator <<
80 G4ionEffectiveCharge & operator=(const G4ion <<
81 G4ionEffectiveCharge(const G4ionEffectiveCha <<
82 <<
83 private: 81 private:
84 82
85 G4Pow* g4calc; << 83 // hide assignment operator
>> 84 G4ionEffectiveCharge & operator=(const G4ionEffectiveCharge &right);
>> 85 G4ionEffectiveCharge(const G4ionEffectiveCharge&);
86 86
87 const G4ParticleDefinition* lastPart = nullp << 87 G4NistManager* nist;
88 const G4Material* lastMat = nullpt <<
89 88
90 G4double inveplus; << 89 const G4ParticleDefinition* lastPart;
>> 90 const G4Material* lastMat;
91 G4double lastKinEnergy; 91 G4double lastKinEnergy;
92 92
93 G4double chargeCorrection 93 G4double chargeCorrection;
94 G4double effCharge; 94 G4double effCharge;
95 95
96 G4double energyHighLimit; 96 G4double energyHighLimit;
97 G4double energyLowLimit; 97 G4double energyLowLimit;
98 G4double energyBohr; 98 G4double energyBohr;
99 G4double massFactor; 99 G4double massFactor;
100 G4double minCharge; 100 G4double minCharge;
101 }; 101 };
102 102
103 //....oooOO0OOooo........oooOO0OOooo........oo 103 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
104 //....oooOO0OOooo........oooOO0OOooo........oo 104 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
105 105
106 inline G4double G4ionEffectiveCharge::Effectiv 106 inline G4double G4ionEffectiveCharge::EffectiveChargeSquareRatio(
107 const G4ParticleDef 107 const G4ParticleDefinition* p,
108 const G4Material* m 108 const G4Material* material,
109 G4double kineticEnergy) 109 G4double kineticEnergy)
110 { 110 {
111 const G4double aCharge = << 111 G4double charge = effCharge;
112 EffectiveCharge(p,material,kineticEnergy)* << 112 if( kineticEnergy != lastKinEnergy || material != lastMat || p != lastPart) {
113 return aCharge*aCharge; << 113 charge = EffectiveCharge(p,material,kineticEnergy);
>> 114 }
>> 115 charge *= chargeCorrection/CLHEP::eplus;
>> 116
>> 117 return charge*charge;
114 } 118 }
115 119
116 //....oooOO0OOooo........oooOO0OOooo........oo 120 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
117 121
118 #endif 122 #endif
119 123