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G4hhIonisation.cc
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25 //
26 //
27 // -------------------------------------------------------------------
28 //
29 // GEANT4 Class file
30 //
31 //
32 // File name: G4hhIonisation
33 //
34 // Author: Vladimir Ivanchenko
35 //
36 // Creation date: 30.09.2005
37 //
38 // Modifications:
39 // 10-01-06 SetStepLimits -> SetStepFunction (V.Ivantchenko)
40 // 27-10-06 Add maxKinEnergy (V.Ivantchenko)
41 //
42 //
43 // -------------------------------------------------------------------
44 //
45 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
46 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
47 
48 #include "G4hhIonisation.hh"
49 #include "G4PhysicalConstants.hh"
50 #include "G4SystemOfUnits.hh"
51 #include "G4BraggNoDeltaModel.hh"
53 #include "G4ICRU73NoDeltaModel.hh"
55 #include "G4BohrFluctuations.hh"
56 #include "G4IonFluctuations.hh"
57 #include "G4UnitsTable.hh"
58 #include "G4Electron.hh"
59 #include "G4EmParameters.hh"
60 
61 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
62 
64  : G4VEnergyLossProcess(name),
65  theParticle(nullptr),
66  //theBaseParticle(nullptr),
67  isInitialised(false)
68 {
69  SetStepFunction(0.1, 0.1*mm);
70  SetVerboseLevel(1);
73  mass = 0.0;
74  ratio = 0.0;
75  flucModel = nullptr;
76 }
77 
78 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
79 
81 {}
82 
83 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
84 
86 {
87  return (p.GetPDGCharge() != 0.0 && p.GetPDGMass() > 100.0*MeV &&
88  !p.IsShortLived());
89 }
90 
91 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
92 
94  const G4Material*,
95  G4double cut)
96 {
97  G4double x = 0.5*cut/electron_mass_c2;
99  G4double gam = x*y + std::sqrt((1. + x)*(1. + x*y*y));
100  return mass*(gam - 1.0);
101 }
102 
103 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
104 
106  const G4ParticleDefinition* part,
107  const G4ParticleDefinition* bpart)
108 {
109  if(isInitialised) { return; }
110 
111  theParticle = part;
112  if(bpart) {
113  G4cout << "G4hhIonisation::InitialiseEnergyLossProcess WARNING: no "
114  << "base particle should be defined for the process "
115  << GetProcessName() << G4endl;
116  }
117  SetBaseParticle(0);
122 
124  G4double emin = std::min(param->MinKinEnergy(), 0.1*eth);
125  G4double emax = std::max(param->MaxKinEnergy(), 100*eth);
126 
127  SetMinKinEnergy(emin);
128  SetMaxKinEnergy(emax);
129  G4int bin = G4lrint(param->NumberOfBinsPerDecade()*std::log10(emax/emin));
130  SetDEDXBinning(bin);
131 
132  G4VEmModel* em = nullptr;
133  if(part->GetPDGCharge() > 0.0) { em = new G4BraggNoDeltaModel(); }
134  else { em = new G4ICRU73NoDeltaModel(); }
135  em->SetLowEnergyLimit(emin);
136  em->SetHighEnergyLimit(eth);
137  AddEmModel(1, em, flucModel);
138 
139  em = new G4BetheBlochNoDeltaModel();
140  em->SetLowEnergyLimit(eth);
141  em->SetHighEnergyLimit(emax);
142  SetEmModel(em);
143  AddEmModel(1, em, flucModel);
144 
145  if(verboseLevel>1) {
146  G4cout << "G4hhIonisation is initialised" << G4endl;
147  }
148  isInitialised = true;
149 }
150 
151 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
152 
154 {
155  G4cout << " Delta-ray will not be produced; "
156  << G4endl;
157 }
158 
159 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
160 
161 void G4hhIonisation::ProcessDescription(std::ostream& out) const
162 {
163  out << "No description available." << G4endl;
165 }
166 
167 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....