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25 // 25 //
26 // ------------------------------------------- 26 // -------------------------------------------------------------------
27 // 27 //
28 // GEANT4 Class file 28 // GEANT4 Class file
29 // 29 //
30 // 30 //
31 // File name: G4hIonisation 31 // File name: G4hIonisation
32 // 32 //
33 // Author: Laszlo Urban 33 // Author: Laszlo Urban
34 // 34 //
35 // Creation date: 30.05.1997 35 // Creation date: 30.05.1997
36 // 36 //
37 // Modified by Laszlo Urban, Michel Maire and 37 // Modified by Laszlo Urban, Michel Maire and Vladimir Ivanchenko
38 // 38 //
39 // ------------------------------------------- 39 // -------------------------------------------------------------------
40 // 40 //
41 //....oooOO0OOooo........oooOO0OOooo........oo 41 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
42 //....oooOO0OOooo........oooOO0OOooo........oo 42 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
43 43
44 #include "G4hIonisation.hh" 44 #include "G4hIonisation.hh"
45 #include "G4PhysicalConstants.hh" 45 #include "G4PhysicalConstants.hh"
46 #include "G4SystemOfUnits.hh" 46 #include "G4SystemOfUnits.hh"
47 #include "G4Electron.hh" 47 #include "G4Electron.hh"
48 #include "G4Proton.hh" 48 #include "G4Proton.hh"
49 #include "G4AntiProton.hh" 49 #include "G4AntiProton.hh"
50 #include "G4BraggModel.hh" 50 #include "G4BraggModel.hh"
51 #include "G4BetheBlochModel.hh" 51 #include "G4BetheBlochModel.hh"
52 #include "G4EmStandUtil.hh" 52 #include "G4EmStandUtil.hh"
53 #include "G4PionPlus.hh" 53 #include "G4PionPlus.hh"
54 #include "G4PionMinus.hh" 54 #include "G4PionMinus.hh"
55 #include "G4KaonPlus.hh" 55 #include "G4KaonPlus.hh"
56 #include "G4KaonMinus.hh" 56 #include "G4KaonMinus.hh"
57 #include "G4ICRU73QOModel.hh" 57 #include "G4ICRU73QOModel.hh"
58 #include "G4EmParameters.hh" 58 #include "G4EmParameters.hh"
59 59
60 //....oooOO0OOooo........oooOO0OOooo........oo 60 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
61 61
62 G4hIonisation::G4hIonisation(const G4String& n 62 G4hIonisation::G4hIonisation(const G4String& name)
63 : G4VEnergyLossProcess(name) << 63 : G4VEnergyLossProcess(name),
>> 64 isInitialised(false)
64 { 65 {
65 SetProcessSubType(fIonisation); 66 SetProcessSubType(fIonisation);
66 SetSecondaryParticle(G4Electron::Electron()) 67 SetSecondaryParticle(G4Electron::Electron());
>> 68 mass = 0.0;
>> 69 ratio = 0.0;
67 eth = 2*CLHEP::MeV; 70 eth = 2*CLHEP::MeV;
68 } 71 }
69 72
70 //....oooOO0OOooo........oooOO0OOooo........oo 73 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
71 74
>> 75 G4hIonisation::~G4hIonisation() = default;
>> 76
>> 77 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 78
72 G4bool G4hIonisation::IsApplicable(const G4Par 79 G4bool G4hIonisation::IsApplicable(const G4ParticleDefinition&)
73 { 80 {
74 return true; 81 return true;
75 } 82 }
76 83
77 //....oooOO0OOooo........oooOO0OOooo........oo 84 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
78 85
79 G4double G4hIonisation::MinPrimaryEnergy(const 86 G4double G4hIonisation::MinPrimaryEnergy(const G4ParticleDefinition*,
80 const G4Material*, 87 const G4Material*,
81 G4double cut) 88 G4double cut)
82 { 89 {
83 G4double x = 0.5*cut/electron_mass_c2; 90 G4double x = 0.5*cut/electron_mass_c2;
84 G4double gam = x*ratio + std::sqrt((1. + x)* 91 G4double gam = x*ratio + std::sqrt((1. + x)*(1. + x*ratio*ratio));
85 return mass*(gam - 1.0); 92 return mass*(gam - 1.0);
86 } 93 }
87 94
88 //....oooOO0OOooo........oooOO0OOooo........oo 95 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
89 96
90 void G4hIonisation::InitialiseEnergyLossProces 97 void G4hIonisation::InitialiseEnergyLossProcess(
91 const G4ParticleDefinition* part, 98 const G4ParticleDefinition* part,
92 const G4ParticleDefinition* bpart) 99 const G4ParticleDefinition* bpart)
93 { 100 {
94 if(!isInitialised) { 101 if(!isInitialised) {
95 102
96 const G4ParticleDefinition* theBaseParticl 103 const G4ParticleDefinition* theBaseParticle = nullptr;
97 G4String pname = part->GetParticleName(); 104 G4String pname = part->GetParticleName();
98 G4double q = part->GetPDGCharge(); 105 G4double q = part->GetPDGCharge();
99 106
100 //G4cout << " G4hIonisation::InitialiseEne 107 //G4cout << " G4hIonisation::InitialiseEnergyLossProcess " << pname
101 // << " " << bpart << G4endl; 108 // << " " << bpart << G4endl;
102 109
103 // define base particle 110 // define base particle
104 if(part == bpart) { 111 if(part == bpart) {
105 theBaseParticle = nullptr; 112 theBaseParticle = nullptr;
106 } else if(nullptr != bpart) { 113 } else if(nullptr != bpart) {
107 theBaseParticle = bpart; 114 theBaseParticle = bpart;
108 115
109 } else if(pname == "proton" || pname == "a 116 } else if(pname == "proton" || pname == "anti_proton" ||
110 pname == "pi+" || pname == "pi-" || 117 pname == "pi+" || pname == "pi-" ||
111 pname == "kaon+" || pname == "kaon-" | 118 pname == "kaon+" || pname == "kaon-" ||
112 pname == "GenericIon" || pname == "alp 119 pname == "GenericIon" || pname == "alpha") {
113 // no base particles 120 // no base particles
114 theBaseParticle = nullptr; 121 theBaseParticle = nullptr;
115 122
116 } else { 123 } else {
117 // select base particle 124 // select base particle
118 if(part->GetPDGSpin() == 0.0) { 125 if(part->GetPDGSpin() == 0.0) {
119 if(q > 0.0) { theBaseParticle = G4KaonPlus:: 126 if(q > 0.0) { theBaseParticle = G4KaonPlus::KaonPlus(); }
120 else { theBaseParticle = G4KaonMinus::KaonMi 127 else { theBaseParticle = G4KaonMinus::KaonMinus(); }
121 } else { 128 } else {
122 if(q > 0.0) { theBaseParticle = G4Proton::Pr 129 if(q > 0.0) { theBaseParticle = G4Proton::Proton(); }
123 else { theBaseParticle = G4AntiProton::AntiP 130 else { theBaseParticle = G4AntiProton::AntiProton(); }
124 } 131 }
125 } 132 }
126 SetBaseParticle(theBaseParticle); 133 SetBaseParticle(theBaseParticle);
127 134
128 // model limit defined for protons 135 // model limit defined for protons
129 mass = part->GetPDGMass(); 136 mass = part->GetPDGMass();
130 ratio = electron_mass_c2/mass; 137 ratio = electron_mass_c2/mass;
131 eth = 2.0*MeV*mass/proton_mass_c2; 138 eth = 2.0*MeV*mass/proton_mass_c2;
132 139
133 G4EmParameters* param = G4EmParameters::In 140 G4EmParameters* param = G4EmParameters::Instance();
134 G4double emin = param->MinKinEnergy(); 141 G4double emin = param->MinKinEnergy();
135 G4double emax = param->MaxKinEnergy(); 142 G4double emax = param->MaxKinEnergy();
136 143
137 // define model of energy loss fluctuation 144 // define model of energy loss fluctuations
138 if (nullptr == FluctModel()) { 145 if (nullptr == FluctModel()) {
139 G4bool ion = (pname == "GenericIon" || p 146 G4bool ion = (pname == "GenericIon" || pname == "alpha");
140 SetFluctModel(G4EmStandUtil::ModelOfFluc 147 SetFluctModel(G4EmStandUtil::ModelOfFluctuations(ion));
141 } 148 }
142 149
143 if (nullptr == EmModel(0)) { 150 if (nullptr == EmModel(0)) {
144 if(q > 0.0) { SetEmModel(new G4BraggMode 151 if(q > 0.0) { SetEmModel(new G4BraggModel()); }
145 else { SetEmModel(new G4ICRU73QOM 152 else { SetEmModel(new G4ICRU73QOModel()); }
146 } 153 }
147 // to compute ranges correctly we have to 154 // to compute ranges correctly we have to use low-energy
148 // model even if activation limit is high 155 // model even if activation limit is high
149 EmModel(0)->SetLowEnergyLimit(emin); 156 EmModel(0)->SetLowEnergyLimit(emin);
150 157
151 // high energy limit may be eth or DBL_MAX 158 // high energy limit may be eth or DBL_MAX
152 G4double emax1 = (EmModel(0)->HighEnergyLi 159 G4double emax1 = (EmModel(0)->HighEnergyLimit() < emax) ? eth : emax;
153 EmModel(0)->SetHighEnergyLimit(emax1); 160 EmModel(0)->SetHighEnergyLimit(emax1);
154 AddEmModel(1, EmModel(0), FluctModel()); 161 AddEmModel(1, EmModel(0), FluctModel());
155 162
156 // second model is used if the first does 163 // second model is used if the first does not cover energy range
157 if(emax1 < emax) { 164 if(emax1 < emax) {
158 if (nullptr == EmModel(1)) { SetEmModel( 165 if (nullptr == EmModel(1)) { SetEmModel(new G4BetheBlochModel()); }
159 EmModel(1)->SetLowEnergyLimit(emax1); 166 EmModel(1)->SetLowEnergyLimit(emax1);
160 167
161 // for extremely heavy particles upper l 168 // for extremely heavy particles upper limit of the model
162 // should be increased 169 // should be increased
163 emax = std::max(emax, eth*10); 170 emax = std::max(emax, eth*10);
164 EmModel(1)->SetHighEnergyLimit(emax); 171 EmModel(1)->SetHighEnergyLimit(emax);
165 AddEmModel(2, EmModel(1), FluctModel()); 172 AddEmModel(2, EmModel(1), FluctModel());
166 } 173 }
167 isInitialised = true; 174 isInitialised = true;
168 } 175 }
169 } 176 }
170 177
171 //....oooOO0OOooo........oooOO0OOooo........oo 178 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
172 179
173 void G4hIonisation::ProcessDescription(std::os 180 void G4hIonisation::ProcessDescription(std::ostream& out) const
174 { 181 {
175 out << " Hadron ionisation"; << 182 out << " Ionisation";
176 G4VEnergyLossProcess::ProcessDescription(out 183 G4VEnergyLossProcess::ProcessDescription(out);
177 } 184 }
178 185
179 //....oooOO0OOooo........oooOO0OOooo........oo 186 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
180 187