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25 // 25 //
>> 26 // $Id$
>> 27 //
26 // ------------------------------------------- 28 // -------------------------------------------------------------------
27 // 29 //
28 // GEANT4 Class file 30 // GEANT4 Class file
29 // 31 //
30 // 32 //
31 // File name: G4hIonisation 33 // File name: G4hIonisation
32 // 34 //
33 // Author: Laszlo Urban 35 // Author: Laszlo Urban
34 // 36 //
35 // Creation date: 30.05.1997 37 // Creation date: 30.05.1997
36 // 38 //
37 // Modified by Laszlo Urban, Michel Maire and << 39 // Modifications:
>> 40 //
>> 41 // corrected by L.Urban on 24/09/97
>> 42 // several bugs corrected by L.Urban on 13/01/98
>> 43 // 07-04-98 remove 'tracking cut' of the ionizing particle, mma
>> 44 // 22-10-98 cleanup L.Urban
>> 45 // 02-02-99 bugs fixed , L.Urban
>> 46 // 29-07-99 correction in BuildLossTable for low energy, L.Urban
>> 47 // 10-02-00 modifications , new e.m. structure, L.Urban
>> 48 // 10-08-00 V.Ivanchenko change BuildLambdaTable, in order to
>> 49 // simulate energy losses of ions; correction to
>> 50 // cross section for particles with spin 1 is inserted as well
>> 51 // 28-05-01 V.Ivanchenko minor changes to provide ANSI -wall compilation
>> 52 // 10-08-01 new methods Store/Retrieve PhysicsTable (mma)
>> 53 // 14-08-01 new function ComputeRestrictedMeandEdx() + 'cleanup' (mma)
>> 54 // 29-08-01 PostStepDoIt: correction for spin 1/2 (instead of 1) (mma)
>> 55 // 17-09-01 migration of Materials to pure STL (mma)
>> 56 // 25-09-01 completion of RetrievePhysicsTable() (mma)
>> 57 // 29-10-01 all static functions no more inlined
>> 58 // 08-11-01 Charge renamed zparticle; added to the dedx
>> 59 // 27-03-02 Bug fix in scaling of lambda table (V.Ivanchenko)
>> 60 // 09-04-02 Update calculation of tables for GenericIons (V.Ivanchenko)
>> 61 // 30-04-02 V.Ivanchenko update to new design
>> 62 // 04-12-02 Add verbose level definition (VI)
>> 63 // 23-12-02 Change interface in order to move to cut per region (V.Ivanchenko)
>> 64 // 26-12-02 Secondary production moved to derived classes (V.Ivanchenko)
>> 65 // 13-02-03 SubCutoff regime is assigned to a region (V.Ivanchenko)
>> 66 // 23-05-03 Define default integral + BohrFluctuations (V.Ivanchenko)
>> 67 // 03-06-03 Fix initialisation problem for STD ionisation (V.Ivanchenko)
>> 68 // 04-08-03 Set integral=false to be default (V.Ivanchenko)
>> 69 // 08-08-03 STD substitute standard (V.Ivanchenko)
>> 70 // 12-11-03 G4EnergyLossSTD -> G4EnergyLossProcess (V.Ivanchenko)
>> 71 // 27-05-04 Set integral to be a default regime (V.Ivanchenko)
>> 72 // 08-11-04 Migration to new interface of Store/Retrieve tables (V.Ivantchenko)
>> 73 // 24-03-05 Optimize internal interfaces (V.Ivantchenko)
>> 74 // 12-08-05 SetStepLimits(0.2, 0.1*mm) (mma)
>> 75 // 10-01-06 SetStepLimits -> SetStepFunction (V.Ivanchenko)
>> 76 // 26-05-06 scale negative particles from pi- and pbar,
>> 77 // positive from pi+ and p (VI)
>> 78 // 14-01-07 use SetEmModel() and SetFluctModel() from G4VEnergyLossProcess (mma)
>> 79 // 12-09-08 Removed CorrectionsAlongStep (VI)
>> 80 // 27-05-10 Added G4ICRU73QOModel for anti-protons (VI)
38 // 81 //
39 // ------------------------------------------- 82 // -------------------------------------------------------------------
40 // 83 //
41 //....oooOO0OOooo........oooOO0OOooo........oo 84 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
42 //....oooOO0OOooo........oooOO0OOooo........oo 85 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
43 86
44 #include "G4hIonisation.hh" 87 #include "G4hIonisation.hh"
45 #include "G4PhysicalConstants.hh" 88 #include "G4PhysicalConstants.hh"
46 #include "G4SystemOfUnits.hh" 89 #include "G4SystemOfUnits.hh"
47 #include "G4Electron.hh" 90 #include "G4Electron.hh"
48 #include "G4Proton.hh" 91 #include "G4Proton.hh"
49 #include "G4AntiProton.hh" 92 #include "G4AntiProton.hh"
50 #include "G4BraggModel.hh" 93 #include "G4BraggModel.hh"
51 #include "G4BetheBlochModel.hh" 94 #include "G4BetheBlochModel.hh"
52 #include "G4EmStandUtil.hh" << 95 #include "G4IonFluctuations.hh"
>> 96 #include "G4UniversalFluctuation.hh"
>> 97 #include "G4BohrFluctuations.hh"
>> 98 #include "G4UnitsTable.hh"
53 #include "G4PionPlus.hh" 99 #include "G4PionPlus.hh"
54 #include "G4PionMinus.hh" 100 #include "G4PionMinus.hh"
55 #include "G4KaonPlus.hh" 101 #include "G4KaonPlus.hh"
56 #include "G4KaonMinus.hh" 102 #include "G4KaonMinus.hh"
57 #include "G4ICRU73QOModel.hh" 103 #include "G4ICRU73QOModel.hh"
58 #include "G4EmParameters.hh" <<
59 104
60 //....oooOO0OOooo........oooOO0OOooo........oo 105 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
61 106
>> 107 using namespace std;
>> 108
62 G4hIonisation::G4hIonisation(const G4String& n 109 G4hIonisation::G4hIonisation(const G4String& name)
63 : G4VEnergyLossProcess(name) << 110 : G4VEnergyLossProcess(name),
>> 111 isInitialised(false)
64 { 112 {
>> 113 SetStepFunction(0.2, 0.1*mm);
65 SetProcessSubType(fIonisation); 114 SetProcessSubType(fIonisation);
66 SetSecondaryParticle(G4Electron::Electron()) 115 SetSecondaryParticle(G4Electron::Electron());
67 eth = 2*CLHEP::MeV; << 116 mass = 0.0;
>> 117 ratio = 0.0;
>> 118 eth = 2*MeV;
68 } 119 }
69 120
70 //....oooOO0OOooo........oooOO0OOooo........oo 121 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
71 122
72 G4bool G4hIonisation::IsApplicable(const G4Par << 123 G4hIonisation::~G4hIonisation()
>> 124 {}
>> 125
>> 126 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 127
>> 128 G4bool G4hIonisation::IsApplicable(const G4ParticleDefinition& p)
73 { 129 {
74 return true; << 130 return (p.GetPDGCharge() != 0.0 && p.GetPDGMass() > 10.0*MeV &&
>> 131 !p.IsShortLived());
75 } 132 }
76 133
77 //....oooOO0OOooo........oooOO0OOooo........oo 134 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
78 135
79 G4double G4hIonisation::MinPrimaryEnergy(const 136 G4double G4hIonisation::MinPrimaryEnergy(const G4ParticleDefinition*,
80 const G4Material*, 137 const G4Material*,
81 G4double cut) 138 G4double cut)
82 { 139 {
83 G4double x = 0.5*cut/electron_mass_c2; 140 G4double x = 0.5*cut/electron_mass_c2;
84 G4double gam = x*ratio + std::sqrt((1. + x)* 141 G4double gam = x*ratio + std::sqrt((1. + x)*(1. + x*ratio*ratio));
85 return mass*(gam - 1.0); 142 return mass*(gam - 1.0);
86 } 143 }
87 144
88 //....oooOO0OOooo........oooOO0OOooo........oo 145 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
89 146
90 void G4hIonisation::InitialiseEnergyLossProces 147 void G4hIonisation::InitialiseEnergyLossProcess(
91 const G4ParticleDefinition* part, 148 const G4ParticleDefinition* part,
92 const G4ParticleDefinition* bpart) 149 const G4ParticleDefinition* bpart)
93 { 150 {
94 if(!isInitialised) { 151 if(!isInitialised) {
95 152
96 const G4ParticleDefinition* theBaseParticl << 153 const G4ParticleDefinition* theBaseParticle = 0;
97 G4String pname = part->GetParticleName(); 154 G4String pname = part->GetParticleName();
98 G4double q = part->GetPDGCharge(); 155 G4double q = part->GetPDGCharge();
99 156
100 //G4cout << " G4hIonisation::InitialiseEne << 157 // standard base particles
101 // << " " << bpart << G4endl; << 158 if(part == bpart || pname == "proton" ||
102 << 159 pname == "anti_proton" ||
103 // define base particle << 160 pname == "pi+" || pname == "pi-" ||
104 if(part == bpart) { << 161 pname == "kaon+" || pname == "kaon-")
105 theBaseParticle = nullptr; << 162 {
106 } else if(nullptr != bpart) { << 163 theBaseParticle = 0;
107 theBaseParticle = bpart; << 164 }
108 << 165 // select base particle
109 } else if(pname == "proton" || pname == "a << 166 else if(bpart == 0) {
110 pname == "pi+" || pname == "pi-" || <<
111 pname == "kaon+" || pname == "kaon-" | <<
112 pname == "GenericIon" || pname == "alp <<
113 // no base particles <<
114 theBaseParticle = nullptr; <<
115 167
116 } else { <<
117 // select base particle <<
118 if(part->GetPDGSpin() == 0.0) { 168 if(part->GetPDGSpin() == 0.0) {
119 if(q > 0.0) { theBaseParticle = G4KaonPlus:: 169 if(q > 0.0) { theBaseParticle = G4KaonPlus::KaonPlus(); }
120 else { theBaseParticle = G4KaonMinus::KaonMi 170 else { theBaseParticle = G4KaonMinus::KaonMinus(); }
121 } else { 171 } else {
122 if(q > 0.0) { theBaseParticle = G4Proton::Pr 172 if(q > 0.0) { theBaseParticle = G4Proton::Proton(); }
123 else { theBaseParticle = G4AntiProton::AntiP 173 else { theBaseParticle = G4AntiProton::AntiProton(); }
124 } 174 }
>> 175
>> 176 // base particle defined by interface
>> 177 } else {
>> 178 theBaseParticle = bpart;
125 } 179 }
126 SetBaseParticle(theBaseParticle); 180 SetBaseParticle(theBaseParticle);
127 181
128 // model limit defined for protons <<
129 mass = part->GetPDGMass(); 182 mass = part->GetPDGMass();
130 ratio = electron_mass_c2/mass; 183 ratio = electron_mass_c2/mass;
131 eth = 2.0*MeV*mass/proton_mass_c2; 184 eth = 2.0*MeV*mass/proton_mass_c2;
132 185
133 G4EmParameters* param = G4EmParameters::In << 186 if (!EmModel(1)) {
134 G4double emin = param->MinKinEnergy(); << 187 if(q > 0.0) { SetEmModel(new G4BraggModel(),1); }
135 G4double emax = param->MaxKinEnergy(); << 188 else { SetEmModel(new G4ICRU73QOModel(),1); }
136 <<
137 // define model of energy loss fluctuation <<
138 if (nullptr == FluctModel()) { <<
139 G4bool ion = (pname == "GenericIon" || p <<
140 SetFluctModel(G4EmStandUtil::ModelOfFluc <<
141 } 189 }
>> 190 EmModel(1)->SetLowEnergyLimit(MinKinEnergy());
>> 191
>> 192 // model limit defined for protons
>> 193 //eth = (EmModel(1)->HighEnergyLimit())*mass/proton_mass_c2;
>> 194 EmModel(1)->SetHighEnergyLimit(eth);
>> 195 AddEmModel(1, EmModel(1), new G4IonFluctuations());
>> 196
>> 197 if (!FluctModel()) { SetFluctModel(new G4UniversalFluctuation()); }
>> 198
>> 199 if (!EmModel(2)) { SetEmModel(new G4BetheBlochModel(),2); }
>> 200 EmModel(2)->SetLowEnergyLimit(eth);
>> 201 EmModel(2)->SetHighEnergyLimit(MaxKinEnergy());
>> 202 AddEmModel(2, EmModel(2), FluctModel());
142 203
143 if (nullptr == EmModel(0)) { <<
144 if(q > 0.0) { SetEmModel(new G4BraggMode <<
145 else { SetEmModel(new G4ICRU73QOM <<
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; 204 isInitialised = true;
168 } 205 }
169 } 206 }
170 207
171 //....oooOO0OOooo........oooOO0OOooo........oo 208 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
172 209
173 void G4hIonisation::ProcessDescription(std::os << 210 void G4hIonisation::PrintInfo()
174 { << 211 {}
175 out << " Hadron ionisation"; <<
176 G4VEnergyLossProcess::ProcessDescription(out <<
177 } <<
178 212
179 //....oooOO0OOooo........oooOO0OOooo........oo << 213 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
180 214