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25 //
26 //
27 // -------------------------------------------
28 //
29 // GEANT4 Class file
30 //
31 //
32 // File name: G4ionIonisation
33 //
34 // Author: Vladimir Ivanchenko
35 //
36 // Creation date: 07.05.2002
37 //
38 // Modifications:
39 //
40 // 23-12-02 Change interface in order to move
41 // 26-12-02 Secondary production moved to deri
42 // 13-02-03 SubCutoff regime is assigned to a
43 // 18-04-03 Use IonFluctuations (V.Ivanchenko)
44 // 03-08-03 Add effective charge (V.Ivanchenko
45 // 12-11-03 G4EnergyLossSTD -> G4EnergyLossPro
46 // 27-05-04 Set integral to be a default regim
47 // 08-11-04 Migration to new interface of Stor
48 // 08-04-05 Major optimisation of internal int
49 // 10-01-06 SetStepLimits -> SetStepFunction (
50 // 10-05-06 Add a possibility to download user
51 // 13-05-06 Add data for light ion stopping in
52 // 14-01-07 use SetEmModel() and SetFluctModel
53 // 16-05-07 Add data for light ion stopping on
54 // 07-11-07 Fill non-ionizing energy loss (V.I
55 // 12-09-08 Removed InitialiseMassCharge and C
56 //
57 //
58 // -------------------------------------------
59 //
60 //....oooOO0OOooo........oooOO0OOooo........oo
61 //....oooOO0OOooo........oooOO0OOooo........oo
62
63 #include "G4ionIonisation.hh"
64 #include "G4PhysicalConstants.hh"
65 #include "G4SystemOfUnits.hh"
66 #include "G4Electron.hh"
67 #include "G4GenericIon.hh"
68 #include "G4BraggModel.hh"
69 #include "G4BraggIonModel.hh"
70 #include "G4BetheBlochModel.hh"
71 #include "G4LossTableManager.hh"
72 #include "G4EmParameters.hh"
73 #include "G4EmStandUtil.hh"
74
75 //....oooOO0OOooo........oooOO0OOooo........oo
76
77 G4ionIonisation::G4ionIonisation(const G4Strin
78 : G4VEnergyLossProcess(name)
79 {
80 SetLinearLossLimit(0.02);
81 SetProcessSubType(fIonisation);
82 SetSecondaryParticle(G4Electron::Electron())
83 eth = 2*CLHEP::MeV;
84 }
85
86 //....oooOO0OOooo........oooOO0OOooo........oo
87
88 G4bool G4ionIonisation::IsApplicable(const G4P
89 {
90 return true;
91 }
92
93 //....oooOO0OOooo........oooOO0OOooo........oo
94
95 G4double G4ionIonisation::MinPrimaryEnergy(con
96 const G4Material*,
97 G4double cut)
98 {
99 return p->GetPDGMass()*(std::sqrt(1. + 0.5*c
100 }
101
102 //....oooOO0OOooo........oooOO0OOooo........oo
103
104 void G4ionIonisation::InitialiseEnergyLossProc
105 const G4ParticleDefinition* part,
106 const G4ParticleDefinition* bpart)
107 {
108 const G4ParticleDefinition* ion = G4GenericI
109
110 if(!isInitialised) {
111 theParticle = part;
112
113 // define base particle
114 const G4ParticleDefinition* theBaseParticl
115 const G4int pdg = part->GetPDGEncoding();
116
117 if(part == bpart) {
118 theBaseParticle = nullptr;
119 } else if(nullptr != bpart) {
120 theBaseParticle = bpart;
121 } else if(part == ion || pdg == 1000020040
122 theBaseParticle = nullptr;
123 } else {
124 theBaseParticle = ion;
125 }
126 SetBaseParticle(theBaseParticle);
127
128 // model limit defined for protons
129 eth = 2*CLHEP::MeV*part->GetPDGMass()/CLHE
130
131 G4EmParameters* param = G4EmParameters::In
132 G4double emin = param->MinKinEnergy();
133 G4double emax = param->MaxKinEnergy();
134
135 // define model of energy loss fluctuation
136 if (nullptr == FluctModel()) {
137 SetFluctModel(G4EmStandUtil::ModelOfFluc
138 }
139
140 if (nullptr == EmModel(0)) {
141 if (pdg == 1000020040) {
142 SetEmModel(new G4BraggIonModel());
143 } else {
144 SetEmModel(new G4BraggModel());
145 }
146 }
147 // to compute ranges correctly we have to
148 // model even if activation limit is high
149 EmModel(0)->SetLowEnergyLimit(emin);
150
151 // high energy limit may be eth or DBL_MAX
152 G4double emax1 = (EmModel(0)->HighEnergyLi
153 EmModel(0)->SetHighEnergyLimit(emax1);
154 AddEmModel(1, EmModel(0), FluctModel());
155
156 // second model is used if the first does
157 if(emax1 < emax) {
158 if (nullptr == EmModel(1)) { SetEmModel(
159 EmModel(1)->SetLowEnergyLimit(emax1);
160
161 // for extremely heavy particles upper l
162 // should be increased
163 emax = std::max(emax, eth*10);
164 EmModel(1)->SetHighEnergyLimit(emax);
165 AddEmModel(2, EmModel(1), FluctModel());
166 }
167 isInitialised = true;
168 }
169 }
170
171 //....oooOO0OOooo........oooOO0OOooo........oo
172
173 void G4ionIonisation::ProcessDescription(std::
174 {
175 out << " Ion ionisation";
176 G4VEnergyLossProcess::ProcessDescription(out
177 }
178
179 //....oooOO0OOooo........oooOO0OOooo........oo
180