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25 //
26 /// \file GB01/src/GB01BOptrMultiParticleChangeCrossSection.cc
27 /// \brief Implementation of the GB01BOptrMultiParticleChangeCrossSection class
28 //
29 #include "GB01BOptrMultiParticleChangeCrossSection.hh"
30
31 #include "GB01BOptrChangeCrossSection.hh"
32
33 #include "G4BiasingProcessInterface.hh"
34 #include "G4ParticleDefinition.hh"
35 #include "G4ParticleTable.hh"
36 #include "G4SystemOfUnits.hh"
37
38 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
39
40 GB01BOptrMultiParticleChangeCrossSection::GB01BOptrMultiParticleChangeCrossSection()
41 : G4VBiasingOperator("TestManyExponentialTransform")
42 {}
43
44 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
45
46 void GB01BOptrMultiParticleChangeCrossSection::AddParticle(G4String particleName)
47 {
48 const G4ParticleDefinition* particle =
49 G4ParticleTable::GetParticleTable()->FindParticle(particleName);
50
51 if (particle == 0) {
52 G4ExceptionDescription ed;
53 ed << "Particle `" << particleName << "' not found !" << G4endl;
54 G4Exception("GB01BOptrMultiParticleChangeCrossSection::AddParticle(...)", "exGB01.02",
55 JustWarning, ed);
56 return;
57 }
58
59 GB01BOptrChangeCrossSection* optr = new GB01BOptrChangeCrossSection(particleName);
60 fParticlesToBias.push_back(particle);
61 fBOptrForParticle[particle] = optr;
62 }
63
64 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
65
66 G4VBiasingOperation* GB01BOptrMultiParticleChangeCrossSection::ProposeOccurenceBiasingOperation(
67 const G4Track* track, const G4BiasingProcessInterface* callingProcess)
68 {
69 // -- examples of limitations imposed to apply the biasing:
70 // -- limit application of biasing to primary particles only:
71 if (track->GetParentID() != 0) return 0;
72 // -- limit to at most 5 biased interactions:
73 if (fnInteractions > 4) return 0;
74 // -- and limit to a weight of at least 0.05:
75 if (track->GetWeight() < 0.05) return 0;
76
77 if (fCurrentOperator)
78 return fCurrentOperator->GetProposedOccurenceBiasingOperation(track, callingProcess);
79 else
80 return 0;
81 }
82
83 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
84
85 void GB01BOptrMultiParticleChangeCrossSection::StartTracking(const G4Track* track)
86 {
87 // -- fetch the underneath biasing operator, if any, for the current particle type:
88 const G4ParticleDefinition* definition = track->GetParticleDefinition();
89 std::map<const G4ParticleDefinition*, GB01BOptrChangeCrossSection*>::iterator it =
90 fBOptrForParticle.find(definition);
91 fCurrentOperator = 0;
92 if (it != fBOptrForParticle.end()) fCurrentOperator = (*it).second;
93
94 // -- reset count for number of biased interactions:
95 fnInteractions = 0;
96 }
97
98 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
99
100 void GB01BOptrMultiParticleChangeCrossSection::OperationApplied(
101 const G4BiasingProcessInterface* callingProcess, G4BiasingAppliedCase biasingCase,
102 G4VBiasingOperation* occurenceOperationApplied, G4double weightForOccurenceInteraction,
103 G4VBiasingOperation* finalStateOperationApplied, const G4VParticleChange* particleChangeProduced)
104 {
105 // -- count number of biased interactions:
106 fnInteractions++;
107
108 // -- inform the underneath biasing operator that a biased interaction occured:
109 if (fCurrentOperator)
110 fCurrentOperator->ReportOperationApplied(callingProcess, biasingCase, occurenceOperationApplied,
111 weightForOccurenceInteraction,
112 finalStateOperationApplied, particleChangeProduced);
113 }
114
115 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
116