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25 // 25 //
>> 26 // $Id: G4hPairProduction.cc,v 1.4 2009/02/20 16:38:33 vnivanch Exp $
>> 27 // GEANT4 tag $Name: geant4-09-03-patch-01 $
26 // 28 //
27 // ------------------------------------------- 29 // -------------------------------------------------------------------
28 // 30 //
29 // GEANT4 Class file 31 // GEANT4 Class file
30 // 32 //
31 // 33 //
32 // File name: G4hPairProduction 34 // File name: G4hPairProduction
33 // 35 //
34 // Author: Vladimir Ivanchenko on base 36 // Author: Vladimir Ivanchenko on base of model for muons
35 // 37 //
36 // Creation date: 01.03.2008 38 // Creation date: 01.03.2008
37 // 39 //
38 // Modifications: 40 // Modifications:
39 // 41 //
40 // 42 //
41 // ------------------------------------------- 43 // -------------------------------------------------------------------
42 // 44 //
43 //....oooOO0OOooo........oooOO0OOooo........oo 45 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
44 //....oooOO0OOooo........oooOO0OOooo........oo 46 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
45 47
46 #include "G4hPairProduction.hh" 48 #include "G4hPairProduction.hh"
>> 49 #include "G4Electron.hh"
>> 50 #include "G4Positron.hh"
47 #include "G4hPairProductionModel.hh" 51 #include "G4hPairProductionModel.hh"
>> 52 #include "G4UniversalFluctuation.hh"
48 53
49 //....oooOO0OOooo........oooOO0OOooo........oo 54 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
50 55
>> 56 using namespace std;
>> 57
51 G4hPairProduction::G4hPairProduction(const G4S 58 G4hPairProduction::G4hPairProduction(const G4String& name)
52 : G4MuPairProduction(name) << 59 : G4VEnergyLossProcess(name),
>> 60 theParticle(0),
>> 61 theBaseParticle(0),
>> 62 lowestKinEnergy(1.*GeV),
>> 63 isInitialised(false)
>> 64 {
>> 65 SetProcessSubType(fPairProdByCharged);
>> 66 }
>> 67
>> 68 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 69
>> 70 G4hPairProduction::~G4hPairProduction()
53 {} 71 {}
54 72
55 //....oooOO0OOooo........oooOO0OOooo........oo 73 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
56 74
57 void G4hPairProduction::InitialiseEnergyLossPr << 75 G4bool G4hPairProduction::IsApplicable(const G4ParticleDefinition& p)
58 const G4ParticleDefin << 76 {
59 const G4ParticleDefinition* bpart) << 77 return (p.GetPDGCharge() != 0.0 && p.GetPDGMass() > 110.0*MeV);
>> 78 }
>> 79
>> 80 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 81
>> 82 G4double G4hPairProduction::MinPrimaryEnergy(const G4ParticleDefinition*,
>> 83 const G4Material*,
>> 84 G4double)
60 { 85 {
61 if (nullptr == EmModel(0)) { SetEmModel(new << 86 return lowestKinEnergy;
62 G4MuPairProduction::InitialiseEnergyLossProc <<
63 } 87 }
64 88
65 //....oooOO0OOooo........oooOO0OOooo........oo 89 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
66 90
67 void G4hPairProduction::ProcessDescription(std << 91 void G4hPairProduction::InitialiseEnergyLossProcess(
>> 92 const G4ParticleDefinition* part,
>> 93 const G4ParticleDefinition*)
68 { 94 {
69 out << "e+e- pair production by hadrons"; << 95 if (!isInitialised) {
70 G4VEnergyLossProcess::ProcessDescription(out << 96 isInitialised = true;
>> 97
>> 98 theParticle = part;
>> 99 SetSecondaryParticle(G4Positron::Positron());
>> 100 SetIonisation(false);
>> 101
>> 102 G4hPairProductionModel* em = new G4hPairProductionModel();
>> 103 em->SetLowestKineticEnergy(lowestKinEnergy);
>> 104 G4VEmFluctuationModel* fm = new G4UniversalFluctuation();
>> 105 em->SetLowEnergyLimit(0.1*keV);
>> 106 em->SetHighEnergyLimit(100.0*TeV);
>> 107 AddEmModel(1, em, fm);
>> 108 }
71 } 109 }
72 110
73 //....oooOO0OOooo........oooOO0OOooo........oo 111 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 112
>> 113 void G4hPairProduction::PrintInfo()
>> 114 {}
>> 115
>> 116 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
>> 117
>> 118
>> 119
>> 120
74 121