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25 // 25 //
>> 26 // $Id: G4MuIonisation.cc 97392 2016-06-02 10:10:32Z gcosmo $
>> 27 //
26 // ------------------------------------------- 28 // -------------------------------------------------------------------
27 // 29 //
28 // GEANT4 Class file 30 // GEANT4 Class file
29 // 31 //
30 // 32 //
31 // File name: G4MuIonisation 33 // File name: G4MuIonisation
32 // 34 //
33 // Author: Laszlo Urban 35 // Author: Laszlo Urban
34 // 36 //
35 // Creation date: 30.09.1997 37 // Creation date: 30.09.1997
36 // 38 //
37 // Modifications: 39 // Modifications:
38 // 40 //
39 // 08-04-98 remove 'tracking cut' of the ioniz 41 // 08-04-98 remove 'tracking cut' of the ionizing particle (mma)
40 // 26-10-98 new stuff from R.Kokoulin + cleanu 42 // 26-10-98 new stuff from R.Kokoulin + cleanup , L.Urban
41 // 10-02-00 modifications , new e.m. structure 43 // 10-02-00 modifications , new e.m. structure, L.Urban
42 // 23-03-01 R.Kokoulin's correction is comment 44 // 23-03-01 R.Kokoulin's correction is commented out, L.Urban
43 // 29-05-01 V.Ivanchenko minor changes to prov 45 // 29-05-01 V.Ivanchenko minor changes to provide ANSI -wall compilation
44 // 10-08-01 new methods Store/Retrieve Physics 46 // 10-08-01 new methods Store/Retrieve PhysicsTable (mma)
45 // 28-08-01 new function ComputeRestrictedMean 47 // 28-08-01 new function ComputeRestrictedMeandEdx() + 'cleanup' (mma)
46 // 17-09-01 migration of Materials to pure STL 48 // 17-09-01 migration of Materials to pure STL (mma)
47 // 26-09-01 completion of RetrievePhysicsTable 49 // 26-09-01 completion of RetrievePhysicsTable (mma)
48 // 29-10-01 all static functions no more inlin 50 // 29-10-01 all static functions no more inlined (mma)
49 // 07-11-01 correction(Tmax+xsection computati 51 // 07-11-01 correction(Tmax+xsection computation) L.Urban
50 // 08-11-01 particleMass becomes a local varia 52 // 08-11-01 particleMass becomes a local variable (mma)
51 // 10-05-02 V.Ivanchenko update to new design 53 // 10-05-02 V.Ivanchenko update to new design
52 // 04-12-02 V.Ivanchenko the low energy limit 54 // 04-12-02 V.Ivanchenko the low energy limit for Kokoulin model to 10 GeV
53 // 23-12-02 Change interface in order to move 55 // 23-12-02 Change interface in order to move to cut per region (V.Ivanchenko)
54 // 26-12-02 Secondary production moved to deri 56 // 26-12-02 Secondary production moved to derived classes (V.Ivanchenko)
55 // 13-02-03 SubCutoff regime is assigned to a 57 // 13-02-03 SubCutoff regime is assigned to a region (V.Ivanchenko)
56 // 23-05-03 Define default integral + BohrFluc 58 // 23-05-03 Define default integral + BohrFluctuations (V.Ivanchenko)
57 // 03-06-03 Add SetIntegral method to choose f 59 // 03-06-03 Add SetIntegral method to choose fluctuation model (V.Ivanchenko)
58 // 03-06-03 Fix initialisation problem for STD 60 // 03-06-03 Fix initialisation problem for STD ionisation (V.Ivanchenko)
59 // 04-08-03 Set integral=false to be default ( 61 // 04-08-03 Set integral=false to be default (V.Ivanchenko)
60 // 08-08-03 STD substitute standard (V.Ivanch 62 // 08-08-03 STD substitute standard (V.Ivanchenko)
61 // 12-11-03 G4EnergyLossSTD -> G4EnergyLossPro 63 // 12-11-03 G4EnergyLossSTD -> G4EnergyLossProcess (V.Ivanchenko)
62 // 10-02-04 Calculation of radiative correctio 64 // 10-02-04 Calculation of radiative corrections using R.Kokoulin model (V.I.)
63 // 27-05-04 Set integral to be a default regim 65 // 27-05-04 Set integral to be a default regime (V.Ivanchenko)
64 // 17-08-04 Utilise mu+ tables for mu- (V.Ivan 66 // 17-08-04 Utilise mu+ tables for mu- (V.Ivanchenko)
65 // 08-11-04 Migration to new interface of Stor 67 // 08-11-04 Migration to new interface of Store/Retrieve tables (V.Ivantchenko)
66 // 08-04-05 Major optimisation of internal int 68 // 08-04-05 Major optimisation of internal interfaces (V.Ivantchenko)
67 // 12-08-05 SetStepLimits(0.2, 0.1*mm) (mma) 69 // 12-08-05 SetStepLimits(0.2, 0.1*mm) (mma)
68 // 02-09-05 SetStepLimits(0.2, 1*mm) (V.Ivantc 70 // 02-09-05 SetStepLimits(0.2, 1*mm) (V.Ivantchenko)
69 // 12-08-05 SetStepLimits(0.2, 0.1*mm) + integ 71 // 12-08-05 SetStepLimits(0.2, 0.1*mm) + integral off (V.Ivantchenko)
70 // 10-01-06 SetStepLimits -> SetStepFunction ( 72 // 10-01-06 SetStepLimits -> SetStepFunction (V.Ivantchenko)
71 // 73 //
72 // ------------------------------------------- 74 // -------------------------------------------------------------------
73 // 75 //
74 //....oooOO0OOooo........oooOO0OOooo........oo 76 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
75 //....oooOO0OOooo........oooOO0OOooo........oo 77 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
76 78
77 #include "G4MuIonisation.hh" 79 #include "G4MuIonisation.hh"
78 #include "G4PhysicalConstants.hh" 80 #include "G4PhysicalConstants.hh"
79 #include "G4SystemOfUnits.hh" 81 #include "G4SystemOfUnits.hh"
80 #include "G4Electron.hh" 82 #include "G4Electron.hh"
>> 83 #include "G4MuonPlus.hh"
>> 84 #include "G4MuonMinus.hh"
81 #include "G4BraggModel.hh" 85 #include "G4BraggModel.hh"
82 #include "G4BetheBlochModel.hh" 86 #include "G4BetheBlochModel.hh"
83 #include "G4MuBetheBlochModel.hh" 87 #include "G4MuBetheBlochModel.hh"
84 #include "G4EmStandUtil.hh" << 88 #include "G4UniversalFluctuation.hh"
>> 89 #include "G4IonFluctuations.hh"
>> 90 #include "G4BohrFluctuations.hh"
>> 91 #include "G4UnitsTable.hh"
85 #include "G4ICRU73QOModel.hh" 92 #include "G4ICRU73QOModel.hh"
86 #include "G4EmParameters.hh" 93 #include "G4EmParameters.hh"
87 94
88 //....oooOO0OOooo........oooOO0OOooo........oo 95 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
89 96
>> 97 using namespace std;
>> 98
90 G4MuIonisation::G4MuIonisation(const G4String& 99 G4MuIonisation::G4MuIonisation(const G4String& name)
91 : G4VEnergyLossProcess(name) << 100 : G4VEnergyLossProcess(name),
>> 101 theParticle(nullptr),
>> 102 theBaseParticle(nullptr),
>> 103 isInitialised(false)
92 { 104 {
>> 105 mass = ratio = 0;
93 SetProcessSubType(fIonisation); 106 SetProcessSubType(fIonisation);
94 SetSecondaryParticle(G4Electron::Electron()) 107 SetSecondaryParticle(G4Electron::Electron());
95 } 108 }
96 109
97 //....oooOO0OOooo........oooOO0OOooo........oo 110 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
98 111
>> 112 G4MuIonisation::~G4MuIonisation()
>> 113 {}
>> 114
>> 115 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 116
99 G4bool G4MuIonisation::IsApplicable(const G4Pa 117 G4bool G4MuIonisation::IsApplicable(const G4ParticleDefinition& p)
100 { 118 {
101 return (p.GetPDGCharge() != 0.0); << 119 return (p.GetPDGCharge() != 0.0 && p.GetPDGMass() > 10.0*MeV);
102 } 120 }
103 121
104 //....oooOO0OOooo........oooOO0OOooo........oo 122 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
105 123
106 G4double G4MuIonisation::MinPrimaryEnergy(cons 124 G4double G4MuIonisation::MinPrimaryEnergy(const G4ParticleDefinition*,
107 const G4Material*, 125 const G4Material*,
108 G4double cut) 126 G4double cut)
109 { 127 {
110 G4double x = 0.5*cut/CLHEP::electron_mass_c2 << 128 G4double x = 0.5*cut/electron_mass_c2;
111 G4double gam = x*ratio + std::sqrt((1. + x)* 129 G4double gam = x*ratio + std::sqrt((1. + x)*(1. + x*ratio*ratio));
112 return mass*(gam - 1.0); 130 return mass*(gam - 1.0);
113 } 131 }
114 132
115 //....oooOO0OOooo........oooOO0OOooo........oo 133 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
116 134
117 void << 135 void G4MuIonisation::InitialiseEnergyLossProcess(const G4ParticleDefinition* part,
118 G4MuIonisation::InitialiseEnergyLossProcess(co << 136 const G4ParticleDefinition* bpart)
119 co <<
120 { 137 {
121 if(!isInitialised) { 138 if(!isInitialised) {
122 139
123 theParticle = part; 140 theParticle = part;
124 theBaseParticle = bpart; 141 theBaseParticle = bpart;
125 142
126 mass = theParticle->GetPDGMass(); 143 mass = theParticle->GetPDGMass();
127 ratio = CLHEP::electron_mass_c2/mass; <<
128 G4double q = theParticle->GetPDGCharge(); 144 G4double q = theParticle->GetPDGCharge();
129 145
130 G4EmParameters* param = G4EmParameters::In 146 G4EmParameters* param = G4EmParameters::Instance();
131 G4double elow = 0.2*CLHEP::MeV; << 147 G4double elow = 0.2*MeV;
132 G4double emax = param->MaxKinEnergy(); 148 G4double emax = param->MaxKinEnergy();
>> 149 G4double ehigh = std::min(1*GeV, emax);
133 150
134 // Bragg peak model 151 // Bragg peak model
135 if (nullptr == EmModel(0)) { << 152 if (!EmModel(1)) {
136 if(q > 0.0) { SetEmModel(new G4BraggMode << 153 if(q > 0.0) { SetEmModel(new G4BraggModel(),1); }
137 else { SetEmModel(new G4ICRU73QOM << 154 else { SetEmModel(new G4ICRU73QOModel(),1); }
138 } <<
139 EmModel(0)->SetLowEnergyLimit(param->MinKi <<
140 EmModel(0)->SetHighEnergyLimit(elow); <<
141 <<
142 // fluctuation model <<
143 if (nullptr == FluctModel()) { <<
144 SetFluctModel(G4EmStandUtil::ModelOfFluc <<
145 } 155 }
146 AddEmModel(1, EmModel(0), FluctModel()); << 156 EmModel(1)->SetLowEnergyLimit(param->MinKinEnergy());
>> 157 EmModel(1)->SetHighEnergyLimit(elow);
>> 158 AddEmModel(1, EmModel(1), new G4IonFluctuations());
>> 159
>> 160 // high energy fluctuation model
>> 161 if (!FluctModel()) { SetFluctModel(new G4UniversalFluctuation()); }
>> 162
>> 163 // moderate energy model
>> 164 if (!EmModel(2)) { SetEmModel(new G4BetheBlochModel(),2); }
>> 165 EmModel(2)->SetLowEnergyLimit(elow);
>> 166 EmModel(2)->SetHighEnergyLimit(ehigh);
>> 167 AddEmModel(2, EmModel(2), FluctModel());
147 168
148 // high energy model 169 // high energy model
149 if (nullptr == EmModel(1)) { SetEmModel(ne << 170 if(ehigh < emax) {
150 EmModel(1)->SetLowEnergyLimit(elow); << 171 if (!EmModel(3)) { SetEmModel(new G4MuBetheBlochModel(),3); }
151 EmModel(1)->SetHighEnergyLimit(emax); << 172 EmModel(3)->SetLowEnergyLimit(ehigh);
152 AddEmModel(1, EmModel(1), FluctModel()); << 173 EmModel(3)->SetHighEnergyLimit(emax);
153 << 174 AddEmModel(3, EmModel(3), FluctModel());
>> 175 }
>> 176 ratio = electron_mass_c2/mass;
154 isInitialised = true; 177 isInitialised = true;
155 } 178 }
156 } 179 }
157 180
158 //....oooOO0OOooo........oooOO0OOooo........oo 181 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
159 182
160 void G4MuIonisation::ProcessDescription(std::o << 183 void G4MuIonisation::PrintInfo()
161 { << 184 {}
162 out << " Muon ionisation"; <<
163 G4VEnergyLossProcess::ProcessDescription(out <<
164 } <<
165 185
166 //....oooOO0OOooo........oooOO0OOooo........oo 186 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 187
>> 188
>> 189
>> 190
167 191