| Geant4 Cross Reference |
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24 // ******************************************* 24 // ********************************************************************
25 // 25 //
26 <<
27 #include "G4AdjointAlongStepWeightCorrection.h 26 #include "G4AdjointAlongStepWeightCorrection.hh"
28 <<
29 #include "G4AdjointCSManager.hh" <<
30 #include "G4ParticleChange.hh" <<
31 #include "G4ParticleDefinition.hh" <<
32 #include "G4Step.hh" 27 #include "G4Step.hh"
>> 28 #include "G4ParticleDefinition.hh"
33 #include "G4VParticleChange.hh" 29 #include "G4VParticleChange.hh"
>> 30 #include "G4AdjointCSManager.hh"
>> 31
34 32
35 ////////////////////////////////////////////// 33 ///////////////////////////////////////////////////////
36 G4AdjointAlongStepWeightCorrection::G4AdjointA << 34 //
37 const G4String& name, G4ProcessType type) << 35
38 : G4VContinuousProcess(name, type) << 36 G4AdjointAlongStepWeightCorrection::G4AdjointAlongStepWeightCorrection(const G4String& name,
39 { << 37 G4ProcessType type): G4VContinuousProcess(name, type)
40 fParticleChange = new G4ParticleChange(); << 38 {fParticleChange = new G4ParticleChange();
41 fCSManager = G4AdjointCSManager::GetAdj <<
42 } 39 }
43 40
44 ////////////////////////////////////////////// 41 ///////////////////////////////////////////////////////
>> 42 //
>> 43
45 G4AdjointAlongStepWeightCorrection::~G4Adjoint 44 G4AdjointAlongStepWeightCorrection::~G4AdjointAlongStepWeightCorrection()
46 { << 45 {;
47 delete fParticleChange; <<
48 } 46 }
49 47
>> 48
50 ////////////////////////////////////////////// 49 ///////////////////////////////////////////////////////
51 void G4AdjointAlongStepWeightCorrection::Proce << 50 //
52 std::ostream& out) const << 51
>> 52 void G4AdjointAlongStepWeightCorrection::PreparePhysicsTable(
>> 53 const G4ParticleDefinition& )
53 { 54 {
54 out << << 55 ;
55 "Continuous processes act on adjoint particl << 56
56 "weight during the adjoint reverse tracking. <<
57 "the adjoint cross sections are not scaled s <<
58 "section matches the total forward cross sec <<
59 "the total adjoint cross section is equal to <<
60 "is used and therefore this along step weigh <<
61 "in some cases (some energy ranges) the tota <<
62 "total adjoint cross section can be zero. In <<
63 "correction is needed and is given by exp(-( <<
64 "\n"; <<
65 } 57 }
66 58
67 ////////////////////////////////////////////// 59 ///////////////////////////////////////////////////////
68 G4VParticleChange* G4AdjointAlongStepWeightCor << 60 //
69 const G4Track& track, const G4Step& step) << 61
>> 62 void G4AdjointAlongStepWeightCorrection::BuildPhysicsTable(const G4ParticleDefinition& )
>> 63 {;
>> 64 }
>> 65
>> 66
>> 67
>> 68
>> 69 ///////////////////////////////////////////////////////
>> 70 //
>> 71 G4VParticleChange* G4AdjointAlongStepWeightCorrection::AlongStepDoIt(const G4Track& track,
>> 72 const G4Step& step)
70 { 73 {
>> 74
71 fParticleChange->Initialize(track); 75 fParticleChange->Initialize(track);
72 << 76
73 // Get the actual (true) Step length 77 // Get the actual (true) Step length
>> 78 //----------------------------------
74 G4double length = step.GetStepLength(); 79 G4double length = step.GetStepLength();
>> 80
75 81
76 G4double Tkin = step.GetPostStepPoint()->Get 82 G4double Tkin = step.GetPostStepPoint()->GetKineticEnergy();
77 G4ParticleDefinition* thePartDef = const_cas << 83 G4ParticleDefinition* thePartDef= const_cast<G4ParticleDefinition*> (track.GetDynamicParticle()->GetDefinition());
78 track.GetDynamicParticle()->GetDefinition( << 84 G4double weight_correction=G4AdjointCSManager::GetAdjointCSManager()->GetContinuousWeightCorrection(thePartDef,
79 G4double weight_correction = fCSManager->Get << 85 preStepKinEnergy,Tkin, currentCouple,length);
80 thePartDef, fPreStepKinEnergy, Tkin, fCurr << 86
81 << 87
82 // Caution!!! << 88
83 // It is important to select the weight of t << 89 G4double new_weight=weight_correction*track.GetWeight();
84 // weight and not the weight of the track, a <<
85 // changed after having applied all the alon <<
86 G4double new_weight = <<
87 weight_correction * step.GetPostStepPoint( <<
88 <<
89 // The following test check for zero weight. <<
90 // This happens after weight correction of g <<
91 // When the new weight is 0 it will be later <<
92 // Therefore we put a lower limit of 1.e-300 <<
93 if(new_weight == 0. || (new_weight <= 0. && <<
94 { <<
95 new_weight = 1.e-300; <<
96 } <<
97 <<
98 fParticleChange->SetParentWeightByProcess(fa 90 fParticleChange->SetParentWeightByProcess(false);
99 fParticleChange->SetSecondaryWeightByProcess 91 fParticleChange->SetSecondaryWeightByProcess(false);
100 fParticleChange->ProposeParentWeight(new_wei 92 fParticleChange->ProposeParentWeight(new_weight);
>> 93
101 94
102 return fParticleChange; 95 return fParticleChange;
103 } <<
104 96
105 ////////////////////////////////////////////// <<
106 G4double G4AdjointAlongStepWeightCorrection::G <<
107 const G4Track& track, G4double, G4double, G4 <<
108 { <<
109 DefineMaterial(track.GetMaterialCutsCouple() <<
110 fPreStepKinEnergy = track.GetKineticEnergy() <<
111 return DBL_MAX; <<
112 } 97 }
113 98