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>> 26 // $Id: G4NuclearStopping.cc 78837 2014-01-28 08:44:36Z gcosmo $
26 // 27 //
27 // ------------------------------------------- 28 // -----------------------------------------------------------------------------
28 // 29 //
29 // GEANT4 Class file 30 // GEANT4 Class file
30 // 31 //
31 // File name: G4NuclearStopping 32 // File name: G4NuclearStopping
32 // 33 //
33 // Author: Vladimir Ivanchenko 34 // Author: Vladimir Ivanchenko
34 // 35 //
35 // Creation date: 20 July 2009 36 // Creation date: 20 July 2009
36 // 37 //
37 // Modified: 38 // Modified:
38 // 39 //
39 // Warning: this class should be instantiated 40 // Warning: this class should be instantiated after G4ionIonisation
40 // 41 //
41 // ------------------------------------------- 42 // -----------------------------------------------------------------------------
42 // 43 //
43 //....oooOO0OOooo........oooOO0OOooo........oo 44 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
44 //....oooOO0OOooo........oooOO0OOooo........oo 45 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
45 46
46 #include "G4NuclearStopping.hh" 47 #include "G4NuclearStopping.hh"
47 #include "G4ICRU49NuclearStoppingModel.hh" 48 #include "G4ICRU49NuclearStoppingModel.hh"
48 #include "G4SystemOfUnits.hh" 49 #include "G4SystemOfUnits.hh"
49 #include "G4PhysicalConstants.hh" 50 #include "G4PhysicalConstants.hh"
50 51
51 //....oooOO0OOooo........oooOO0OOooo........oo 52 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
52 53
53 using namespace std; 54 using namespace std;
54 55
55 G4NuclearStopping::G4NuclearStopping(const G4S 56 G4NuclearStopping::G4NuclearStopping(const G4String& processName)
56 : G4VEmProcess(processName) 57 : G4VEmProcess(processName)
57 { 58 {
58 isInitialized = false; 59 isInitialized = false;
59 SetProcessSubType(fNuclearStopping); 60 SetProcessSubType(fNuclearStopping);
60 SetBuildTableFlag(false); 61 SetBuildTableFlag(false);
61 enableAlongStepDoIt = true; 62 enableAlongStepDoIt = true;
62 enablePostStepDoIt = false; 63 enablePostStepDoIt = false;
>> 64 modelICRU49 = 0;
63 } 65 }
64 66
65 //....oooOO0OOooo........oooOO0OOooo........oo 67 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
66 68
67 G4NuclearStopping::~G4NuclearStopping() = defa << 69 G4NuclearStopping::~G4NuclearStopping()
>> 70 {}
68 71
69 //....oooOO0OOooo........oooOO0OOooo........oo 72 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
70 73
71 G4bool G4NuclearStopping::IsApplicable (const 74 G4bool G4NuclearStopping::IsApplicable (const G4ParticleDefinition& p)
72 { 75 {
73 return (p.GetPDGCharge() != 0.0); << 76 return (p.GetPDGCharge() != 0.0 && !p.IsShortLived());
74 } 77 }
75 78
76 //....oooOO0OOooo........oooOO0OOooo........oo 79 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
77 80
78 void G4NuclearStopping::InitialiseProcess(cons 81 void G4NuclearStopping::InitialiseProcess(const G4ParticleDefinition*)
79 { 82 {
80 if(!isInitialized) { 83 if(!isInitialized) {
81 isInitialized = true; 84 isInitialized = true;
82 85
83 if(nullptr == EmModel(0)) { << 86 if(!EmModel(1)) {
84 SetEmModel(new G4ICRU49NuclearStoppingMo << 87 modelICRU49 = new G4ICRU49NuclearStoppingModel();
>> 88 SetEmModel(modelICRU49);
85 } 89 }
86 AddEmModel(1, EmModel()); 90 AddEmModel(1, EmModel());
87 EmModel()->SetActivationHighEnergyLimit(10 <<
88 EmModel()->SetParticleChange(&nParticleCha 91 EmModel()->SetParticleChange(&nParticleChange);
89 } 92 }
90 } 93 }
91 94
92 //....oooOO0OOooo........oooOO0OOooo........oo 95 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
93 96
94 G4double 97 G4double
95 G4NuclearStopping::AlongStepGetPhysicalInterac 98 G4NuclearStopping::AlongStepGetPhysicalInteractionLength(
96 const G4Track&, G4double, G4double, G4dou 99 const G4Track&, G4double, G4double, G4double&, G4GPILSelection* selection)
97 { 100 {
98 *selection = NotCandidateForSelection; 101 *selection = NotCandidateForSelection;
99 return DBL_MAX; 102 return DBL_MAX;
100 } 103 }
101 104
102 //....oooOO0OOooo........oooOO0OOooo........oo 105 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
103 106
104 G4VParticleChange* G4NuclearStopping::AlongSte 107 G4VParticleChange* G4NuclearStopping::AlongStepDoIt(const G4Track& track,
105 const G4Step& step) 108 const G4Step& step)
106 { 109 {
107 nParticleChange.InitializeForAlongStep(track 110 nParticleChange.InitializeForAlongStep(track);
108 111
109 // this line only valid if nuclear stopping 112 // this line only valid if nuclear stopping
110 // is computed after G4ionIonisation process 113 // is computed after G4ionIonisation process
111 nParticleChange.SetProposedCharge(step.GetPo 114 nParticleChange.SetProposedCharge(step.GetPostStepPoint()->GetCharge());
112 115
113 G4double T2 = step.GetPostStepPoint()->GetKi 116 G4double T2 = step.GetPostStepPoint()->GetKineticEnergy();
114 117
115 const G4ParticleDefinition* part = track.Get 118 const G4ParticleDefinition* part = track.GetParticleDefinition();
116 G4double Z = std::abs(part->GetPDGCharge()/e << 119 G4double Z = std::fabs(part->GetPDGCharge()/eplus);
117 G4double massR = proton_mass_c2/part->GetPDG <<
118 120
119 if(T2 > 0.0 && T2*massR < Z*Z*MeV) { << 121 if(T2 > 0.0 && T2*proton_mass_c2 < Z*Z*MeV*part->GetPDGMass()) {
120 122
121 G4double length = step.GetStepLength(); 123 G4double length = step.GetStepLength();
122 if(length > 0.0) { 124 if(length > 0.0) {
123 125
124 // primary 126 // primary
125 G4double T1= step.GetPreStepPoint()->Get 127 G4double T1= step.GetPreStepPoint()->GetKineticEnergy();
126 G4double T = 0.5*(T1 + T2); 128 G4double T = 0.5*(T1 + T2);
127 const G4MaterialCutsCouple* couple = tra 129 const G4MaterialCutsCouple* couple = track.GetMaterialCutsCouple();
128 G4double Tscaled = T*massR; << 130 G4VEmModel* mod = SelectModel(T, couple->GetIndex());
129 G4VEmModel* mod = SelectModel(Tscaled, c <<
130 131
131 // sample stopping 132 // sample stopping
132 if(mod->IsActive(Tscaled)) { << 133 if(modelICRU49) { modelICRU49->SetFluctuationFlag(true); }
133 G4double nloss = << 134 G4double nloss =
134 length*mod->ComputeDEDXPerVolume(couple->G << 135 length*mod->ComputeDEDXPerVolume(couple->GetMaterial(), part, T);
135 nloss = std::min(nloss, T1); << 136 if(nloss > T1) { nloss = T1; }
136 nParticleChange.SetProposedKineticEnergy(T1 << 137 nParticleChange.SetProposedKineticEnergy(T1 - nloss);
137 nParticleChange.ProposeLocalEnergyDeposit(nl << 138 nParticleChange.ProposeLocalEnergyDeposit(nloss);
138 nParticleChange.ProposeNonIonizingEnergyDepo << 139 nParticleChange.ProposeNonIonizingEnergyDeposit(nloss);
139 } << 140 if(modelICRU49) { modelICRU49->SetFluctuationFlag(false); }
140 } 141 }
141 } 142 }
142 return &nParticleChange; 143 return &nParticleChange;
143 } 144 }
144 145
145 //....oooOO0OOooo........oooOO0OOooo........oo 146 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
146 147
147 void G4NuclearStopping::ProcessDescription(std << 148 void G4NuclearStopping::PrintInfo()
148 { << 149 {}
149 out << " Nuclear stopping"; << 150
150 G4VEmProcess::ProcessDescription(out); << 151 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
151 } <<
152 152
153 //....oooOO0OOooo........oooOO0OOooo........oo <<
154 153