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25 //
26 // G4DNADoubleIonisation.cc
27 //
28 // Created at 2024/04/03 (Thu.)
29 // Author: Shogo OKADA @KEK-CRC (shogo.okada@kek.jp)
30 //
31
32 #include "G4DNADoubleIonisation.hh"
33 #include "G4DNADoubleIonisationModel.hh"
34 #include "G4LowEnergyEmProcessSubType.hh"
35 #include "G4SystemOfUnits.hh"
36 #include "G4GenericIon.hh"
37 #include "G4Positron.hh"
38
39 //------------------------------------------------------------------------------
40 G4DNADoubleIonisation::G4DNADoubleIonisation(
41 const G4String& pname, G4ProcessType type)
42 : G4VEmProcess(pname, type),
43 is_initialized_(false)
44 {
45 SetProcessSubType(fLowEnergyDoubleIonisation);
46 }
47
48 //------------------------------------------------------------------------------
49 G4bool G4DNADoubleIonisation::IsApplicable(const G4ParticleDefinition& p)
50 {
51 return (
52 &p == G4Proton::Proton() ||
53 &p == G4DNAGenericIonsManager::Instance()->GetIon("alpha++") ||
54 &p == G4GenericIon::GenericIonDefinition()
55 );
56 }
57
58 //------------------------------------------------------------------------------
59 void G4DNADoubleIonisation::InitialiseProcess(const G4ParticleDefinition* p)
60 {
61 if (is_initialized_) { return; }
62
63 is_initialized_ = true;
64 SetBuildTableFlag(false);
65
66 const auto& name = p->GetParticleName();
67
68 if (name == "proton") {
69
70 if (!EmModel()) {
71 auto ptr = new G4DNADoubleIonisationModel();
72 SetEmModel(ptr);
73 ptr->SetLowEnergyLimit(0.0 * keV);
74 ptr->SetHighEnergyLimit(3.0 * MeV);
75 }
76
77 AddEmModel(1, EmModel());
78
79 } else if (name == "alpha") {
80
81 if (!EmModel()) {
82 auto ptr = new G4DNADoubleIonisationModel();
83 SetEmModel(ptr);
84 ptr->SetLowEnergyLimit(0.0 * keV);
85 ptr->SetHighEnergyLimit(23.0 * MeV);
86 }
87
88 AddEmModel(1, EmModel());
89
90 } else if (name == "GenericIon") {
91
92 // for carbon ions (12C6+)
93 if (!EmModel()) {
94 auto ptr = new G4DNADoubleIonisationModel();
95 SetEmModel(ptr);
96 ptr->SetLowEnergyLimit(0.0 * keV);
97 ptr->SetHighEnergyLimit(120 * MeV);
98 }
99
100 AddEmModel(1, EmModel());
101 }
102
103 }
104
105 //------------------------------------------------------------------------------
106 void G4DNADoubleIonisation::PrintInfo()
107 {
108 if (EmModel(1)) {
109 G4cout << " Total cross sections computed from " << EmModel(0)->GetName()
110 << " and " << EmModel(1)->GetName() << " models" << G4endl;
111 } else {
112 G4cout << " Total cross sections computed from " << EmModel()->GetName()
113 << G4endl;
114 }
115 }
116