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25 // 25 //
>> 26 // $Id: G4hIonisation.hh,v 1.37 2007/05/23 08:47:34 vnivanch Exp $
>> 27 // GEANT4 tag $Name: geant4-09-01 $
26 // 28 //
27 // ------------------------------------------- 29 // -------------------------------------------------------------------
28 // 30 //
29 // GEANT4 Class header file 31 // GEANT4 Class header file
30 // 32 //
31 // 33 //
32 // File name: G4hIonisation 34 // File name: G4hIonisation
33 // 35 //
34 // Author: Laszlo Urban 36 // Author: Laszlo Urban
35 // 37 //
36 // Creation date: 30.05.1997 38 // Creation date: 30.05.1997
37 // 39 //
38 // Modifications: 40 // Modifications:
39 // 41 //
40 // corrected by L.Urban on 24/09/97 42 // corrected by L.Urban on 24/09/97
41 // corrected by L.Urban on 13/01/98 43 // corrected by L.Urban on 13/01/98
42 // bugs fixed by L.Urban on 02/02/99 44 // bugs fixed by L.Urban on 02/02/99
43 // 10/02/00 modifications , new e.m. structure 45 // 10/02/00 modifications , new e.m. structure, L.Urban
44 // 10-08-01 new methods Store/Retrieve Physics 46 // 10-08-01 new methods Store/Retrieve PhysicsTable (mma)
45 // 14-08-01 new function ComputeRestrictedMean 47 // 14-08-01 new function ComputeRestrictedMeandEdx() + 'cleanup' (mma)
46 // 19-09-01 come back to previous process name 48 // 19-09-01 come back to previous process name "hIoni"
47 // 29-10-01 all static functions no more inlin 49 // 29-10-01 all static functions no more inlined
48 // 07-01-02 new design of em processes (V.Ivan 50 // 07-01-02 new design of em processes (V.Ivanchenko)
49 // 26-12-02 secondary production moved to deri 51 // 26-12-02 secondary production moved to derived classes (VI)
50 // 24-01-03 Make models region aware (V.Ivanch 52 // 24-01-03 Make models region aware (V.Ivanchenko)
51 // 05-02-03 Fix compilation warnings (V.Ivanch 53 // 05-02-03 Fix compilation warnings (V.Ivanchenko)
52 // 13-02-03 SubCutoff regime is assigned to a 54 // 13-02-03 SubCutoff regime is assigned to a region (V.Ivanchenko)
53 // 15-02-03 Add control on delta pointer (V.Iv 55 // 15-02-03 Add control on delta pointer (V.Ivanchenko)
54 // 23-05-03 Add fluctuation model as a member 56 // 23-05-03 Add fluctuation model as a member function (V.Ivanchenko)
55 // 03-06-03 Fix initialisation problem for STD 57 // 03-06-03 Fix initialisation problem for STD ionisation (V.Ivanchenko)
56 // 16-06-03 ShortLived are not applicable any 58 // 16-06-03 ShortLived are not applicable any more (V.Ivanchenko)
57 // 08-08-03 STD substitute standard (V.Ivanch 59 // 08-08-03 STD substitute standard (V.Ivanchenko)
58 // 12-11-03 G4EnergyLossSTD -> G4EnergyLossPro 60 // 12-11-03 G4EnergyLossSTD -> G4EnergyLossProcess (V.Ivanchenko)
59 // 21-01-04 Migrade to G4ParticleChangeForLoss 61 // 21-01-04 Migrade to G4ParticleChangeForLoss (V.Ivanchenko)
60 // 08-11-04 Migration to new interface of Stor 62 // 08-11-04 Migration to new interface of Store/Retrieve tables (V.Ivantchenko)
61 // 08-04-05 Major optimisation of internal int 63 // 08-04-05 Major optimisation of internal interfaces (V.Ivantchenko)
62 // 11-04-04 Move MaxSecondaryEnergy to models 64 // 11-04-04 Move MaxSecondaryEnergy to models (V.Ivanchenko)
63 // 12-09-08 Removed CorrectionsAlongStep (VI) <<
64 // 65 //
65 // Class Description: 66 // Class Description:
66 // 67 //
67 // This class manages the ionisation process f 68 // This class manages the ionisation process for hadrons.
68 // it inherites from G4VContinuousDiscreteProc 69 // it inherites from G4VContinuousDiscreteProcess via G4VEnergyLoss.
69 // 70 //
70 71
71 // ------------------------------------------- 72 // -------------------------------------------------------------------
72 // 73 //
73 74
74 #ifndef G4hIonisation_h 75 #ifndef G4hIonisation_h
75 #define G4hIonisation_h 1 76 #define G4hIonisation_h 1
76 77
77 #include "G4VEnergyLossProcess.hh" 78 #include "G4VEnergyLossProcess.hh"
78 #include "G4Electron.hh" 79 #include "G4Electron.hh"
79 #include "G4Positron.hh" 80 #include "G4Positron.hh"
80 #include "globals.hh" 81 #include "globals.hh"
>> 82 #include "G4VEmModel.hh"
>> 83 #include "G4EmCorrections.hh"
81 84
82 class G4Material; 85 class G4Material;
83 86
84 class G4hIonisation : public G4VEnergyLossProc 87 class G4hIonisation : public G4VEnergyLossProcess
85 { 88 {
86 89
87 public: 90 public:
88 91
89 explicit G4hIonisation(const G4String& name << 92 G4hIonisation(const G4String& name = "hIoni");
90 93
91 ~G4hIonisation() override = default; << 94 virtual ~G4hIonisation();
92 95
93 G4bool IsApplicable(const G4ParticleDefiniti << 96 G4bool IsApplicable(const G4ParticleDefinition& p);
94 97
95 G4double MinPrimaryEnergy(const G4ParticleDe 98 G4double MinPrimaryEnergy(const G4ParticleDefinition* p,
96 const G4Material*, G4double cut) fin << 99 const G4Material*, G4double cut);
97 100
98 // print documentation in html format << 101 // Print out of the class parameters
99 void ProcessDescription(std::ostream&) const << 102 virtual void PrintInfo();
100 <<
101 // hide assignment operator <<
102 G4hIonisation & operator=(const G4hIonisatio <<
103 G4hIonisation(const G4hIonisation&) = delete <<
104 103
105 protected: 104 protected:
106 105
107 void InitialiseEnergyLossProcess(const G4Par << 106 void CorrectionsAlongStep(
108 const G4ParticleDefinition*) overri << 107 const G4MaterialCutsCouple*,
>> 108 const G4DynamicParticle*,
>> 109 G4double& eloss,
>> 110 G4double& length);
>> 111
>> 112 virtual void InitialiseEnergyLossProcess(const G4ParticleDefinition*,
>> 113 const G4ParticleDefinition*);
109 114
110 private: 115 private:
111 116
112 G4bool isInitialised = false; << 117 // hide assignment operator
113 G4double mass = 0.0; << 118 G4hIonisation & operator=(const G4hIonisation &right);
114 G4double ratio = 0.0; << 119 G4hIonisation(const G4hIonisation&);
115 G4double eth; << 120
>> 121 G4double mass;
>> 122 G4double ratio;
>> 123
>> 124 const G4ParticleDefinition* theParticle;
>> 125 const G4ParticleDefinition* theBaseParticle;
>> 126 G4EmCorrections* corr;
>> 127
>> 128 G4bool isInitialised;
>> 129
>> 130 G4double eth;
>> 131 G4double massratio;
>> 132
116 }; 133 };
>> 134
>> 135 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 136 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 137
>> 138 inline G4bool G4hIonisation::IsApplicable(const G4ParticleDefinition& p)
>> 139 {
>> 140 return (p.GetPDGCharge() != 0.0 && p.GetPDGMass() > 10.0*MeV &&
>> 141 !p.IsShortLived());
>> 142 }
>> 143
>> 144 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 145
>> 146 inline G4double G4hIonisation::MinPrimaryEnergy(const G4ParticleDefinition*,
>> 147 const G4Material*,
>> 148 G4double cut)
>> 149 {
>> 150 G4double x = 0.5*cut/electron_mass_c2;
>> 151 G4double y = electron_mass_c2/mass;
>> 152 G4double g = x*y + std::sqrt((1. + x)*(1. + x*y*y));
>> 153 return mass*(g - 1.0);
>> 154 }
>> 155
>> 156 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 157
>> 158 inline void G4hIonisation::CorrectionsAlongStep(
>> 159 const G4MaterialCutsCouple* couple,
>> 160 const G4DynamicParticle* dp,
>> 161 G4double& eloss,
>> 162 G4double& s)
>> 163 {
>> 164 G4double kinEnergy = dp->GetKineticEnergy();
>> 165 if(eloss < kinEnergy && kinEnergy*massratio < eth)
>> 166 eloss += s*corr->NuclearDEDX(theParticle,couple->GetMaterial(),
>> 167 kinEnergy - eloss*0.5);
>> 168 }
117 169
118 //....oooOO0OOooo........oooOO0OOooo........oo 170 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
119 171
120 #endif 172 #endif
121 173