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>> 26 // $Id: G4hhIonisation.cc,v 1.9 2009/02/20 16:38:33 vnivanch Exp $
>> 27 // GEANT4 tag $Name: geant4-09-03-patch-02 $
26 // 28 //
27 // ------------------------------------------- 29 // -------------------------------------------------------------------
28 // 30 //
29 // GEANT4 Class file 31 // GEANT4 Class file
30 // 32 //
31 // 33 //
32 // File name: G4hhIonisation 34 // File name: G4hhIonisation
33 // 35 //
34 // Author: Vladimir Ivanchenko 36 // Author: Vladimir Ivanchenko
35 // 37 //
36 // Creation date: 30.09.2005 38 // Creation date: 30.09.2005
37 // 39 //
38 // Modifications: 40 // Modifications:
39 // 10-01-06 SetStepLimits -> SetStepFunction ( 41 // 10-01-06 SetStepLimits -> SetStepFunction (V.Ivantchenko)
40 // 27-10-06 Add maxKinEnergy (V.Ivantchenko) 42 // 27-10-06 Add maxKinEnergy (V.Ivantchenko)
41 // 43 //
42 // 44 //
43 // ------------------------------------------- 45 // -------------------------------------------------------------------
44 // 46 //
45 //....oooOO0OOooo........oooOO0OOooo........oo 47 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
46 //....oooOO0OOooo........oooOO0OOooo........oo 48 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
47 49
48 #include "G4hhIonisation.hh" 50 #include "G4hhIonisation.hh"
49 #include "G4PhysicalConstants.hh" <<
50 #include "G4SystemOfUnits.hh" <<
51 #include "G4BraggNoDeltaModel.hh" 51 #include "G4BraggNoDeltaModel.hh"
52 #include "G4BetheBlochNoDeltaModel.hh" 52 #include "G4BetheBlochNoDeltaModel.hh"
53 #include "G4ICRU73NoDeltaModel.hh" <<
54 #include "G4UniversalFluctuation.hh" 53 #include "G4UniversalFluctuation.hh"
55 #include "G4IonFluctuations.hh" << 54 #include "G4BohrFluctuations.hh"
56 #include "G4UnitsTable.hh" 55 #include "G4UnitsTable.hh"
57 #include "G4Electron.hh" 56 #include "G4Electron.hh"
58 #include "G4EmParameters.hh" <<
59 57
60 //....oooOO0OOooo........oooOO0OOooo........oo 58 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
61 59
62 G4hhIonisation::G4hhIonisation(const G4String& 60 G4hhIonisation::G4hhIonisation(const G4String& name)
63 : G4VEnergyLossProcess(name) << 61 : G4VEnergyLossProcess(name),
>> 62 theParticle(0),
>> 63 theBaseParticle(0),
>> 64 isInitialised(false)
64 { 65 {
>> 66 SetStepFunction(0.1, 0.1*mm);
65 SetVerboseLevel(1); 67 SetVerboseLevel(1);
66 SetProcessSubType(fIonisation); 68 SetProcessSubType(fIonisation);
67 SetSecondaryParticle(G4Electron::Electron()) << 69 mass = 0.0;
>> 70 ratio = 0.0;
68 } 71 }
69 72
70 //....oooOO0OOooo........oooOO0OOooo........oo 73 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
71 74
72 G4hhIonisation::~G4hhIonisation() 75 G4hhIonisation::~G4hhIonisation()
73 {} 76 {}
74 77
75 //....oooOO0OOooo........oooOO0OOooo........oo 78 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
76 79
77 G4bool G4hhIonisation::IsApplicable(const G4Pa 80 G4bool G4hhIonisation::IsApplicable(const G4ParticleDefinition& p)
78 { 81 {
79 return (p.GetPDGCharge() != 0.0); << 82 return (p.GetPDGCharge() != 0.0 && p.GetPDGMass() > 100.0*MeV &&
>> 83 !p.IsShortLived());
80 } 84 }
81 85
82 //....oooOO0OOooo........oooOO0OOooo........oo 86 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
83 87
84 G4double G4hhIonisation::MinPrimaryEnergy(cons 88 G4double G4hhIonisation::MinPrimaryEnergy(const G4ParticleDefinition*,
85 const G4Material*, 89 const G4Material*,
86 G4double cut) 90 G4double cut)
87 { 91 {
88 G4double x = 0.5*cut/electron_mass_c2; 92 G4double x = 0.5*cut/electron_mass_c2;
89 G4double y = electron_mass_c2/mass; 93 G4double y = electron_mass_c2/mass;
90 G4double gam = x*y + std::sqrt((1. + x)*(1. << 94 G4double g = x*y + std::sqrt((1. + x)*(1. + x*y*y));
91 return mass*(gam - 1.0); << 95 return mass*(g - 1.0);
92 } 96 }
93 97
94 //....oooOO0OOooo........oooOO0OOooo........oo 98 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
95 99
96 void G4hhIonisation::InitialiseEnergyLossProce << 100 void G4hhIonisation::InitialiseEnergyLossProcess(const G4ParticleDefinition* part,
97 const G4ParticleDefinition* part, << 101 const G4ParticleDefinition* bpart)
98 const G4ParticleDefinition* bpart) <<
99 { 102 {
100 if(isInitialised) { return; } << 103 if(isInitialised) return;
101 104
102 theParticle = part; 105 theParticle = part;
103 if(nullptr != bpart) { << 106 if(bpart) G4cout << "G4hhIonisation::InitialiseEnergyLossProcess WARNING: no "
104 G4cout << "G4hhIonisation::InitialiseEnerg << 107 << "base particle should be defined for the process "
105 << "base particle should be defined for t << 108 << GetProcessName() << G4endl;
106 << GetProcessName() << G4endl; << 109
107 } << 110 SetBaseParticle(0);
>> 111 SetSecondaryParticle(G4Electron::Electron());
108 mass = theParticle->GetPDGMass(); 112 mass = theParticle->GetPDGMass();
109 ratio = electron_mass_c2/mass; 113 ratio = electron_mass_c2/mass;
110 G4double eth = 2*CLHEP::MeV*mass/proton_mass << 114 eth = 2.0*MeV*mass/proton_mass_c2;
111 flucModel = new G4IonFluctuations(); << 115 flucModel = new G4BohrFluctuations();
>> 116
>> 117 G4int nm = 1;
>> 118
>> 119 minKinEnergy = MinKinEnergy();
>> 120
>> 121 if(eth > minKinEnergy) {
>> 122 G4VEmModel* em = new G4BraggNoDeltaModel();
>> 123 em->SetLowEnergyLimit(minKinEnergy);
>> 124 em->SetHighEnergyLimit(eth);
>> 125 AddEmModel(nm, em, flucModel);
>> 126 nm++;
>> 127 }
112 128
113 G4EmParameters* param = G4EmParameters::Inst << 129 if(eth < MaxKinEnergy()) {
114 G4double emin = std::min(param->MinKinEnergy << 130 G4VEmModel* em1 = new G4BetheBlochNoDeltaModel();
115 G4double emax = std::max(param->MaxKinEnergy << 131 em1->SetLowEnergyLimit(std::max(eth,minKinEnergy));
116 << 132 em1->SetHighEnergyLimit(MaxKinEnergy());
117 SetMinKinEnergy(emin); << 133 AddEmModel(nm, em1, flucModel);
118 SetMaxKinEnergy(emax); <<
119 G4int bin = G4lrint(param->NumberOfBinsPerDe <<
120 SetDEDXBinning(bin); <<
121 <<
122 G4VEmModel* em = EmModel(0); <<
123 if (nullptr == em) { <<
124 if(part->GetPDGCharge() > 0.0) { em = new <<
125 else { em = new G4ICRU73NoDeltaModel(); } <<
126 } 134 }
127 em->SetLowEnergyLimit(emin); <<
128 em->SetHighEnergyLimit(eth); <<
129 AddEmModel(1, em, flucModel); <<
130 <<
131 em = EmModel(1); <<
132 if(nullptr == em) { em = new G4BetheBlochNoD <<
133 em->SetLowEnergyLimit(eth); <<
134 em->SetHighEnergyLimit(emax); <<
135 AddEmModel(1, em, flucModel); <<
136 135
137 if(verboseLevel>1) { 136 if(verboseLevel>1) {
138 G4cout << "G4hhIonisation is initialised" << 137 G4cout << "G4hhIonisation is initialised: Nmodels= " << nm << G4endl;
139 } 138 }
140 isInitialised = true; 139 isInitialised = true;
141 } 140 }
142 141
143 //....oooOO0OOooo........oooOO0OOooo........oo 142 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
144 143
145 void G4hhIonisation::ProcessDescription(std::o << 144 void G4hhIonisation::PrintInfo()
146 { 145 {
147 out << "G4hhIonisation: no delta rays" << G4 << 146 G4cout << " Delta-ray will not be produced; "
148 G4VEnergyLossProcess::ProcessDescription(out << 147 << G4endl;
149 } 148 }
150 149
151 //....oooOO0OOooo........oooOO0OOooo........oo 150 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
152 151