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GB01BOptrMultiParticleChangeCrossSection.cc
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28 //
31 
33 #include "G4ParticleDefinition.hh"
34 #include "G4ParticleTable.hh"
35 
36 #include "G4SystemOfUnits.hh"
37 
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39 
41  : G4VBiasingOperator("TestManyExponentialTransform")
42 {}
43 
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45 
47 {
50 
51  if ( particle == 0 )
52  {
54  ed << "Particle `" << particleName << "' not found !" << G4endl;
55  G4Exception("GB01BOptrMultiParticleChangeCrossSection::AddParticle(...)",
56  "exGB01.02",
58  ed);
59  return;
60  }
61 
63  fParticlesToBias.push_back( particle );
64  fBOptrForParticle[ particle ] = optr;
65 }
66 
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68 
72  const G4BiasingProcessInterface* callingProcess)
73 {
74  // -- examples of limitations imposed to apply the biasing:
75  // -- limit application of biasing to primary particles only:
76  if ( track->GetParentID() != 0 ) return 0;
77  // -- limit to at most 5 biased interactions:
78  if ( fnInteractions > 4 ) return 0;
79  // -- and limit to a weight of at least 0.05:
80  if ( track->GetWeight() < 0.05 ) return 0;
81 
82  if ( fCurrentOperator ) return fCurrentOperator->
83  GetProposedOccurenceBiasingOperation(track, callingProcess);
84  else return 0;
85 }
86 
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88 
90 {
91  // -- fetch the underneath biasing operator, if any, for the current particle type:
92  const G4ParticleDefinition* definition = track->GetParticleDefinition();
93  std::map < const G4ParticleDefinition*, GB01BOptrChangeCrossSection* > :: iterator
94  it = fBOptrForParticle.find( definition );
95  fCurrentOperator = 0;
96  if ( it != fBOptrForParticle.end() ) fCurrentOperator = (*it).second;
97 
98  // -- reset count for number of biased interactions:
99  fnInteractions = 0;
100 }
101 
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103 
104 void
107  G4BiasingAppliedCase biasingCase,
108  G4VBiasingOperation* occurenceOperationApplied,
109  G4double weightForOccurenceInteraction,
110  G4VBiasingOperation* finalStateOperationApplied,
111  const G4VParticleChange* particleChangeProduced )
112 {
113  // -- count number of biased interactions:
114  fnInteractions++;
115 
116  // -- inform the underneath biasing operator that a biased interaction occured:
118  biasingCase,
119  occurenceOperationApplied,
120  weightForOccurenceInteraction,
121  finalStateOperationApplied,
122  particleChangeProduced );
123 }
124 
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