| Geant4 Cross Reference |
1 // 1 //
2 // ******************************************* 2 // ********************************************************************
3 // * License and Disclaimer 3 // * License and Disclaimer *
4 // * 4 // * *
5 // * The Geant4 software is copyright of th 5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided 6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License 7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/ 8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. 9 // * include a list of copyright holders. *
10 // * 10 // * *
11 // * Neither the authors of this software syst 11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing fin 12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warran 13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assum 14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file 15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitatio 16 // * for the full disclaimer and the limitation of liability. *
17 // * 17 // * *
18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distri 20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you ag 21 // * any work based on the software) you agree to acknowledge its *
22 // * use in resulting scientific publicati 22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Sof 23 // * acceptance of all terms of the Geant4 Software license. *
24 // ******************************************* 24 // ********************************************************************
25 // 25 //
26 // 26 //
27 // ------------------------------------------- 27 // -----------------------------------------------------------------------------
28 // 28 //
29 // GEANT4 Class file 29 // GEANT4 Class file
30 // 30 //
31 // File name: G4NuclearStopping 31 // File name: G4NuclearStopping
32 // 32 //
33 // Author: Vladimir Ivanchenko 33 // Author: Vladimir Ivanchenko
34 // 34 //
35 // Creation date: 20 July 2009 35 // Creation date: 20 July 2009
36 // 36 //
37 // Modified: 37 // Modified:
38 // 38 //
39 // Warning: this class should be instantiated 39 // Warning: this class should be instantiated after G4ionIonisation
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 "G4NuclearStopping.hh" 46 #include "G4NuclearStopping.hh"
47 #include "G4ICRU49NuclearStoppingModel.hh" 47 #include "G4ICRU49NuclearStoppingModel.hh"
48 #include "G4SystemOfUnits.hh" 48 #include "G4SystemOfUnits.hh"
49 #include "G4PhysicalConstants.hh" 49 #include "G4PhysicalConstants.hh"
50 50
51 //....oooOO0OOooo........oooOO0OOooo........oo 51 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
52 52
53 using namespace std; 53 using namespace std;
54 54
55 G4NuclearStopping::G4NuclearStopping(const G4S 55 G4NuclearStopping::G4NuclearStopping(const G4String& processName)
56 : G4VEmProcess(processName) 56 : G4VEmProcess(processName)
57 { 57 {
58 isInitialized = false; 58 isInitialized = false;
59 SetProcessSubType(fNuclearStopping); 59 SetProcessSubType(fNuclearStopping);
60 SetBuildTableFlag(false); 60 SetBuildTableFlag(false);
61 enableAlongStepDoIt = true; 61 enableAlongStepDoIt = true;
62 enablePostStepDoIt = false; 62 enablePostStepDoIt = false;
63 } 63 }
64 64
65 //....oooOO0OOooo........oooOO0OOooo........oo 65 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
66 66
67 G4NuclearStopping::~G4NuclearStopping() = defa 67 G4NuclearStopping::~G4NuclearStopping() = default;
68 68
69 //....oooOO0OOooo........oooOO0OOooo........oo 69 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
70 70
71 G4bool G4NuclearStopping::IsApplicable (const 71 G4bool G4NuclearStopping::IsApplicable (const G4ParticleDefinition& p)
72 { 72 {
73 return (p.GetPDGCharge() != 0.0); 73 return (p.GetPDGCharge() != 0.0);
74 } 74 }
75 75
76 //....oooOO0OOooo........oooOO0OOooo........oo 76 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
77 77
78 void G4NuclearStopping::InitialiseProcess(cons 78 void G4NuclearStopping::InitialiseProcess(const G4ParticleDefinition*)
79 { 79 {
80 if(!isInitialized) { 80 if(!isInitialized) {
81 isInitialized = true; 81 isInitialized = true;
82 82
83 if(nullptr == EmModel(0)) { 83 if(nullptr == EmModel(0)) {
84 SetEmModel(new G4ICRU49NuclearStoppingMo 84 SetEmModel(new G4ICRU49NuclearStoppingModel());
85 } 85 }
86 AddEmModel(1, EmModel()); 86 AddEmModel(1, EmModel());
87 EmModel()->SetActivationHighEnergyLimit(10 87 EmModel()->SetActivationHighEnergyLimit(10*GeV);
88 EmModel()->SetParticleChange(&nParticleCha 88 EmModel()->SetParticleChange(&nParticleChange);
89 } 89 }
90 } 90 }
91 91
92 //....oooOO0OOooo........oooOO0OOooo........oo 92 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
93 93
94 G4double 94 G4double
95 G4NuclearStopping::AlongStepGetPhysicalInterac 95 G4NuclearStopping::AlongStepGetPhysicalInteractionLength(
96 const G4Track&, G4double, G4double, G4dou 96 const G4Track&, G4double, G4double, G4double&, G4GPILSelection* selection)
97 { 97 {
98 *selection = NotCandidateForSelection; 98 *selection = NotCandidateForSelection;
99 return DBL_MAX; 99 return DBL_MAX;
100 } 100 }
101 101
102 //....oooOO0OOooo........oooOO0OOooo........oo 102 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
103 103
104 G4VParticleChange* G4NuclearStopping::AlongSte 104 G4VParticleChange* G4NuclearStopping::AlongStepDoIt(const G4Track& track,
105 const G4Step& step) 105 const G4Step& step)
106 { 106 {
107 nParticleChange.InitializeForAlongStep(track 107 nParticleChange.InitializeForAlongStep(track);
108 108
109 // this line only valid if nuclear stopping 109 // this line only valid if nuclear stopping
110 // is computed after G4ionIonisation process 110 // is computed after G4ionIonisation process
111 nParticleChange.SetProposedCharge(step.GetPo 111 nParticleChange.SetProposedCharge(step.GetPostStepPoint()->GetCharge());
112 112
113 G4double T2 = step.GetPostStepPoint()->GetKi 113 G4double T2 = step.GetPostStepPoint()->GetKineticEnergy();
114 114
115 const G4ParticleDefinition* part = track.Get 115 const G4ParticleDefinition* part = track.GetParticleDefinition();
116 G4double Z = std::abs(part->GetPDGCharge()/e 116 G4double Z = std::abs(part->GetPDGCharge()/eplus);
117 G4double massR = proton_mass_c2/part->GetPDG 117 G4double massR = proton_mass_c2/part->GetPDGMass();
118 118
119 if(T2 > 0.0 && T2*massR < Z*Z*MeV) { 119 if(T2 > 0.0 && T2*massR < Z*Z*MeV) {
120 120
121 G4double length = step.GetStepLength(); 121 G4double length = step.GetStepLength();
122 if(length > 0.0) { 122 if(length > 0.0) {
123 123
124 // primary 124 // primary
125 G4double T1= step.GetPreStepPoint()->Get 125 G4double T1= step.GetPreStepPoint()->GetKineticEnergy();
126 G4double T = 0.5*(T1 + T2); 126 G4double T = 0.5*(T1 + T2);
127 const G4MaterialCutsCouple* couple = tra 127 const G4MaterialCutsCouple* couple = track.GetMaterialCutsCouple();
128 G4double Tscaled = T*massR; 128 G4double Tscaled = T*massR;
129 G4VEmModel* mod = SelectModel(Tscaled, c 129 G4VEmModel* mod = SelectModel(Tscaled, couple->GetIndex());
130 130
131 // sample stopping 131 // sample stopping
132 if(mod->IsActive(Tscaled)) { 132 if(mod->IsActive(Tscaled)) {
133 G4double nloss = 133 G4double nloss =
134 length*mod->ComputeDEDXPerVolume(couple->G 134 length*mod->ComputeDEDXPerVolume(couple->GetMaterial(), part, T);
135 nloss = std::min(nloss, T1); 135 nloss = std::min(nloss, T1);
136 nParticleChange.SetProposedKineticEnergy(T1 136 nParticleChange.SetProposedKineticEnergy(T1 - nloss);
137 nParticleChange.ProposeLocalEnergyDeposit(nl 137 nParticleChange.ProposeLocalEnergyDeposit(nloss);
138 nParticleChange.ProposeNonIonizingEnergyDepo 138 nParticleChange.ProposeNonIonizingEnergyDeposit(nloss);
139 } 139 }
140 } 140 }
141 } 141 }
142 return &nParticleChange; 142 return &nParticleChange;
143 } 143 }
144 144
145 //....oooOO0OOooo........oooOO0OOooo........oo 145 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
146 146
147 void G4NuclearStopping::ProcessDescription(std 147 void G4NuclearStopping::ProcessDescription(std::ostream& out) const
148 { 148 {
149 out << " Nuclear stopping"; 149 out << " Nuclear stopping";
150 G4VEmProcess::ProcessDescription(out); 150 G4VEmProcess::ProcessDescription(out);
151 } 151 }
152 152
153 //....oooOO0OOooo........oooOO0OOooo........oo 153 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo....
154 154