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25 // 25 //
>> 26 // $Id: G4AdjointAlongStepWeightCorrection.hh 69844 2013-05-16 09:19:33Z gcosmo $
>> 27 //
26 ////////////////////////////////////////////// 28 /////////////////////////////////////////////////////////////////////////////////
27 // Class: G4AdjointAlongStepWeightCorrecti << 29 // Class: G4AdjointAlongStepWeightCorrection
28 // Author: L. Desorgher << 30 // Author: L. Desorgher
29 // Organisation: SpaceIT GmbH << 31 // Organisation: SpaceIT GmbH
>> 32 // Contract: ESA contract 21435/08/NL/AT
>> 33 // Customer: ESA/ESTEC
30 ////////////////////////////////////////////// 34 /////////////////////////////////////////////////////////////////////////////////
31 // 35 //
32 // Documentation: << 36 // CHANGE HISTORY
33 // << 37 // --------------
34 // Continuous processes act on adjoint partic << 38 // ChangeHistory:
35 // weight during the adjoint reverse tracking << 39 // 10 May 2007 creation by L. Desorgher
36 // the adjoint cross sections are not scaled << 40 // October 2009 implementation of the mode where the total adjoint and forward cross sections are equivalent. L. Desorgher
37 // section matches the total forward cross se <<
38 // the total adjoint cross section is equal t <<
39 // is used and therefore this along step weig <<
40 // in some cases (some energy ranges) the tot <<
41 // total adjoint cross section can be zero. I <<
42 // correction is needed and is given by exp(- <<
43 // 41 //
44 //-------------------------------------------- 42 //-------------------------------------------------------------
>> 43 // Documentation:
>> 44 // Continuous processes acting on adjoint particles to correct continuously their weight during the adjoint reverse tracking.
>> 45 // Thi process is needed whene the adjoint cross section are not scaled such that the total adjoint cross section match the total forward cross section.
>> 46 // By default the mode where the total adjoint cross section is equal to the total forward cross section is used an therefore this along step weight
>> 47 // correction factor is 1.
>> 48 // However in some cases (some energy ranges) the total forward cross section or the total adjoint cross section can be null, in this case the along step
>> 49 // weight correction is neede and is given by exp(-(Sigma_tot_adj-Sigma_tot_fwd).dx)
>> 50 //
>> 51 //
>> 52 //
>> 53
45 54
46 #ifndef G4AdjointAlongStepWeightCorrection_h 55 #ifndef G4AdjointAlongStepWeightCorrection_h
47 #define G4AdjointAlongStepWeightCorrection_h 1 56 #define G4AdjointAlongStepWeightCorrection_h 1
48 57
49 #include "globals.hh" <<
50 #include "G4VContinuousProcess.hh" 58 #include "G4VContinuousProcess.hh"
>> 59 #include "globals.hh"
>> 60 #include "G4Material.hh"
>> 61 #include "G4MaterialCutsCouple.hh"
>> 62 #include "G4Track.hh"
>> 63 #include "G4ParticleChange.hh"
51 64
52 class G4AdjointCSManager; <<
53 class G4MaterialCutsCouple; <<
54 class G4ParticleDefinition; <<
55 class G4ParticleChange; <<
56 class G4Step; 65 class G4Step;
57 class G4Track; << 66 class G4ParticleDefinition;
>> 67
>> 68
58 69
59 class G4AdjointAlongStepWeightCorrection : pub 70 class G4AdjointAlongStepWeightCorrection : public G4VContinuousProcess
60 { 71 {
61 public: << 72 public:
62 explicit G4AdjointAlongStepWeightCorrection( << 73
63 const G4String& name = "ContinuousWeightCo << 74 G4AdjointAlongStepWeightCorrection(const G4String& name = "ContinuousWeightCorrection",
64 G4ProcessType type = fElectromagnetic); << 75 G4ProcessType type = fElectromagnetic);
65 << 76
66 ~G4AdjointAlongStepWeightCorrection() overri << 77 virtual ~G4AdjointAlongStepWeightCorrection();
67 << 78
68 G4VParticleChange* AlongStepDoIt(const G4Tra << 79
69 << 80 protected:
70 void ProcessDescription(std::ostream&) const << 81 virtual G4double GetContinuousStepLimit(const G4Track& track,
71 void DumpInfo() const override { ProcessDesc << 82 G4double previousStepSize,
72 << 83 G4double currentMinimumStep,
73 G4AdjointAlongStepWeightCorrection(G4Adjoint << 84 G4double& currentSafety);
74 delete; << 85
75 G4AdjointAlongStepWeightCorrection& operator << 86
76 const G4AdjointAlongStepWeightCorrection& << 87 //------------------------------------------------------------------------
77 << 88 // Generic methods common to all processes
78 protected: << 89 //------------------------------------------------------------------------
79 G4double GetContinuousStepLimit(const G4Trac << 90 public:
80 G4double pre << 91
81 G4double cur << 92 void PreparePhysicsTable(const G4ParticleDefinition&);
82 G4double& cu << 93
>> 94 void BuildPhysicsTable(const G4ParticleDefinition&);
>> 95
>> 96 G4VParticleChange* AlongStepDoIt(const G4Track&, const G4Step&);
>> 97
>> 98
>> 99 private:
83 100
84 private: <<
85 void DefineMaterial(const G4MaterialCutsCoup 101 void DefineMaterial(const G4MaterialCutsCouple* couple);
>> 102
86 103
87 const G4MaterialCutsCouple* fCurrentCouple = <<
88 G4AdjointCSManager* fCSManager = nullptr; <<
89 G4ParticleChange* fParticleChange; <<
90 104
91 G4double fPreStepKinEnergy = 1.; << 105 G4AdjointAlongStepWeightCorrection(G4AdjointAlongStepWeightCorrection &);
>> 106 G4AdjointAlongStepWeightCorrection & operator=(const G4AdjointAlongStepWeightCorrection &right);
>> 107
>> 108
>> 109
>> 110 protected:
>> 111
>> 112 G4ParticleChange* fParticleChange;
>> 113
>> 114
>> 115 private:
>> 116
>> 117 const G4Material* currentMaterial;
>> 118 const G4MaterialCutsCouple* currentCouple;
>> 119 size_t currentMaterialIndex;
>> 120 G4double preStepKinEnergy;
>> 121
92 }; 122 };
93 123
94 inline void G4AdjointAlongStepWeightCorrection 124 inline void G4AdjointAlongStepWeightCorrection::DefineMaterial(
95 const G4MaterialCutsCouple* couple) << 125 const G4MaterialCutsCouple* couple)
96 { 126 {
97 if(couple != fCurrentCouple) << 127 if(couple != currentCouple) {
98 { << 128 currentCouple = couple;
99 fCurrentCouple = couple; << 129 currentMaterial = couple->GetMaterial();
>> 130 currentMaterialIndex = couple->GetIndex();
>> 131
100 } 132 }
101 } 133 }
>> 134
>> 135
102 136
103 #endif 137 #endif
104 138