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>> 26 // $Id: G4hhIonisation.cc,v 1.8 2008/10/16 14:29:48 vnivanch Exp $
>> 27 // GEANT4 tag $Name: geant4-09-02-patch-03 $
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 void G4hhIonisation::InitialiseEnergyLossProcess(const G4ParticleDefinition* part,
>> 81 const G4ParticleDefinition* bpart)
78 { 82 {
79 return (p.GetPDGCharge() != 0.0); << 83 if(isInitialised) return;
80 } <<
81 84
82 //....oooOO0OOooo........oooOO0OOooo........oo << 85 theParticle = part;
>> 86 if(bpart) G4cout << "G4hhIonisation::InitialiseEnergyLossProcess WARNING: no "
>> 87 << "base particle should be defined for the process "
>> 88 << GetProcessName() << G4endl;
83 89
84 G4double G4hhIonisation::MinPrimaryEnergy(cons << 90 SetBaseParticle(0);
85 const G4Material*, << 91 SetSecondaryParticle(G4Electron::Electron());
86 G4double cut) << 92 mass = theParticle->GetPDGMass();
87 { << 93 ratio = electron_mass_c2/mass;
88 G4double x = 0.5*cut/electron_mass_c2; << 94 eth = 2.0*MeV*mass/proton_mass_c2;
89 G4double y = electron_mass_c2/mass; << 95 flucModel = new G4BohrFluctuations();
90 G4double gam = x*y + std::sqrt((1. + x)*(1. <<
91 return mass*(gam - 1.0); <<
92 } <<
93 96
94 //....oooOO0OOooo........oooOO0OOooo........oo << 97 G4int nm = 1;
95 98
96 void G4hhIonisation::InitialiseEnergyLossProce << 99 minKinEnergy = MinKinEnergy();
97 const G4ParticleDefinition* part, <<
98 const G4ParticleDefinition* bpart) <<
99 { <<
100 if(isInitialised) { return; } <<
101 100
102 theParticle = part; << 101 if(eth > minKinEnergy) {
103 if(nullptr != bpart) { << 102 G4VEmModel* em = new G4BraggNoDeltaModel();
104 G4cout << "G4hhIonisation::InitialiseEnerg << 103 em->SetLowEnergyLimit(minKinEnergy);
105 << "base particle should be defined for t << 104 em->SetHighEnergyLimit(eth);
106 << GetProcessName() << G4endl; << 105 AddEmModel(nm, em, flucModel);
>> 106 nm++;
107 } 107 }
108 mass = theParticle->GetPDGMass(); <<
109 ratio = electron_mass_c2/mass; <<
110 G4double eth = 2*CLHEP::MeV*mass/proton_mass <<
111 flucModel = new G4IonFluctuations(); <<
112 108
113 G4EmParameters* param = G4EmParameters::Inst << 109 if(eth < MaxKinEnergy()) {
114 G4double emin = std::min(param->MinKinEnergy << 110 G4VEmModel* em1 = new G4BetheBlochNoDeltaModel();
115 G4double emax = std::max(param->MaxKinEnergy << 111 em1->SetLowEnergyLimit(std::max(eth,minKinEnergy));
116 << 112 em1->SetHighEnergyLimit(MaxKinEnergy());
117 SetMinKinEnergy(emin); << 113 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 } 114 }
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); <<
136 115
137 if(verboseLevel>1) { 116 if(verboseLevel>1) {
138 G4cout << "G4hhIonisation is initialised" << 117 G4cout << "G4hhIonisation is initialised: Nmodels= " << nm << G4endl;
139 } 118 }
140 isInitialised = true; 119 isInitialised = true;
141 } 120 }
142 121
143 //....oooOO0OOooo........oooOO0OOooo........oo 122 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
144 123
145 void G4hhIonisation::ProcessDescription(std::o << 124 void G4hhIonisation::PrintInfo()
146 { 125 {
147 out << "G4hhIonisation: no delta rays" << G4 << 126 G4cout << " Delta-ray will not be produced; "
148 G4VEnergyLossProcess::ProcessDescription(out << 127 << G4endl;
149 } 128 }
150 129
151 //....oooOO0OOooo........oooOO0OOooo........oo 130 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
152 131