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26 // 26 //
27 // ------------------------------------------- 27 // -------------------------------------------------------------------
28 // 28 //
29 // GEANT4 Class file 29 // GEANT4 Class file
30 // 30 //
31 // 31 //
32 // File name: G4mplIonisation 32 // File name: G4mplIonisation
33 // 33 //
34 // Author: Vladimir Ivanchenko 34 // Author: Vladimir Ivanchenko
35 // 35 //
36 // Creation date: 25.08.2005 36 // Creation date: 25.08.2005
37 // 37 //
38 // Modifications: 38 // Modifications:
39 // 39 //
40 // 40 //
41 // ------------------------------------------- 41 // -------------------------------------------------------------------
42 // 42 //
43 //....oooOO0OOooo........oooOO0OOooo........oo 43 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
44 //....oooOO0OOooo........oooOO0OOooo........oo 44 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
45 45
46 #include "G4mplIonisation.hh" 46 #include "G4mplIonisation.hh"
47 #include "G4PhysicalConstants.hh" 47 #include "G4PhysicalConstants.hh"
48 #include "G4SystemOfUnits.hh" 48 #include "G4SystemOfUnits.hh"
49 #include "G4Electron.hh" 49 #include "G4Electron.hh"
50 #include "G4mplIonisationModel.hh" 50 #include "G4mplIonisationModel.hh"
51 #include "G4mplIonisationWithDeltaModel.hh" 51 #include "G4mplIonisationWithDeltaModel.hh"
52 #include "G4EmParameters.hh" 52 #include "G4EmParameters.hh"
53 53
54 //....oooOO0OOooo........oooOO0OOooo........oo 54 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
55 55
>> 56 using namespace std;
>> 57
56 G4mplIonisation::G4mplIonisation(G4double mCha 58 G4mplIonisation::G4mplIonisation(G4double mCharge, const G4String& name)
57 : G4VEnergyLossProcess(name), 59 : G4VEnergyLossProcess(name),
58 magneticCharge(mCharge) << 60 magneticCharge(mCharge),
>> 61 isInitialised(false)
59 { 62 {
60 // By default classical magnetic charge is u 63 // By default classical magnetic charge is used
61 if(magneticCharge == 0.0) { magneticCharge = << 64 if(magneticCharge == 0.0) { magneticCharge = eplus*0.5/fine_structure_const; }
62 65
63 SetVerboseLevel(0); 66 SetVerboseLevel(0);
64 SetProcessSubType(fIonisation); 67 SetProcessSubType(fIonisation);
>> 68 SetStepFunction(0.2, 1*mm);
65 SetSecondaryParticle(G4Electron::Electron()) 69 SetSecondaryParticle(G4Electron::Electron());
66 } 70 }
67 71
68 //....oooOO0OOooo........oooOO0OOooo........oo 72 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
69 73
70 G4mplIonisation::~G4mplIonisation() 74 G4mplIonisation::~G4mplIonisation()
71 {} 75 {}
72 76
73 //....oooOO0OOooo........oooOO0OOooo........oo 77 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
74 78
75 G4bool G4mplIonisation::IsApplicable(const G4P 79 G4bool G4mplIonisation::IsApplicable(const G4ParticleDefinition&)
76 { 80 {
77 return true; 81 return true;
78 } 82 }
79 83
80 //....oooOO0OOooo........oooOO0OOooo........oo 84 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
81 85
82 G4double G4mplIonisation::MinPrimaryEnergy(con 86 G4double G4mplIonisation::MinPrimaryEnergy(const G4ParticleDefinition* mpl,
83 con 87 const G4Material*,
84 G4d 88 G4double cut)
85 { 89 {
86 G4double x = 0.5*cut/electron_mass_c2; 90 G4double x = 0.5*cut/electron_mass_c2;
87 G4double mass = mpl->GetPDGMass(); 91 G4double mass = mpl->GetPDGMass();
88 G4double ratio = electron_mass_c2/mass; 92 G4double ratio = electron_mass_c2/mass;
89 G4double gam = x*ratio + std::sqrt((1. + x 93 G4double gam = x*ratio + std::sqrt((1. + x)*(1. + x*ratio*ratio));
90 return mass*(gam - 1.0); 94 return mass*(gam - 1.0);
91 } 95 }
92 96
93 //....oooOO0OOooo........oooOO0OOooo........oo 97 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
94 98
95 void G4mplIonisation::InitialiseEnergyLossProc 99 void G4mplIonisation::InitialiseEnergyLossProcess(const G4ParticleDefinition* p,
96 100 const G4ParticleDefinition*)
97 { 101 {
98 if(isInitialised) { return; } 102 if(isInitialised) { return; }
99 103
>> 104 SetBaseParticle(0);
>> 105
100 // monopole model is responsible both for en 106 // monopole model is responsible both for energy loss and fluctuations
101 G4mplIonisationWithDeltaModel* ion = 107 G4mplIonisationWithDeltaModel* ion =
102 new G4mplIonisationWithDeltaModel(magnetic 108 new G4mplIonisationWithDeltaModel(magneticCharge,"PAI");
103 ion->SetParticle(p); 109 ion->SetParticle(p);
104 110
105 // define size of dedx and range tables 111 // define size of dedx and range tables
106 G4EmParameters* param = G4EmParameters::Inst 112 G4EmParameters* param = G4EmParameters::Instance();
107 G4double emin = std::min(param->MinKinEnerg 113 G4double emin = std::min(param->MinKinEnergy(),ion->LowEnergyLimit());
108 G4double emax = std::max(param->MaxKinEnerg 114 G4double emax = std::max(param->MaxKinEnergy(),ion->HighEnergyLimit());
109 G4int bin = G4lrint(param->NumberOfBinsPerDe 115 G4int bin = G4lrint(param->NumberOfBinsPerDecade()*std::log10(emax/emin));
110 ion->SetLowEnergyLimit(emin); 116 ion->SetLowEnergyLimit(emin);
111 ion->SetHighEnergyLimit(emax); 117 ion->SetHighEnergyLimit(emax);
112 SetMinKinEnergy(emin); 118 SetMinKinEnergy(emin);
113 SetMaxKinEnergy(emax); 119 SetMaxKinEnergy(emax);
114 SetDEDXBinning(bin); 120 SetDEDXBinning(bin);
115 121
116 SetEmModel(ion); 122 SetEmModel(ion);
117 AddEmModel(1,ion,ion); 123 AddEmModel(1,ion,ion);
118 124
119 isInitialised = true; 125 isInitialised = true;
120 } 126 }
121 127
122 //....oooOO0OOooo........oooOO0OOooo........oo 128 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
123 129
>> 130 void G4mplIonisation::PrintInfo()
>> 131 {}
>> 132
>> 133 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 134
124 void G4mplIonisation::ProcessDescription(std:: 135 void G4mplIonisation::ProcessDescription(std::ostream& out) const
125 { 136 {
126 out << "Magnetic monopole ionisation" << G4e << 137 out << "No description available." << G4endl;
127 G4VEnergyLossProcess::ProcessDescription(out 138 G4VEnergyLossProcess::ProcessDescription(out);
128 } 139 }
129 140
130 //....oooOO0OOooo........oooOO0OOooo........oo 141 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
131 142
132 143