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25 // 25 //
>> 26 // $Id: G4AdjointAlongStepWeightCorrection.hh,v 1.4 2009/11/20 10:31:20 ldesorgh Exp $
>> 27 // GEANT4 tag $Name: geant4-09-03 $
>> 28 //
26 ////////////////////////////////////////////// 29 /////////////////////////////////////////////////////////////////////////////////
27 // Class: G4AdjointAlongStepWeightCorrecti << 30 // Class: G4AdjointAlongStepWeightCorrection
28 // Author: L. Desorgher << 31 // Author: L. Desorgher
29 // Organisation: SpaceIT GmbH << 32 // Organisation: SpaceIT GmbH
>> 33 // Contract: ESA contract 21435/08/NL/AT
>> 34 // Customer: ESA/ESTEC
30 ////////////////////////////////////////////// 35 /////////////////////////////////////////////////////////////////////////////////
31 // 36 //
32 // Documentation: << 37 // CHANGE HISTORY
33 // << 38 // --------------
34 // Continuous processes act on adjoint partic << 39 // ChangeHistory:
35 // weight during the adjoint reverse tracking << 40 // 10 May 2007 creation by L. Desorgher
36 // the adjoint cross sections are not scaled << 41 // 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 // 42 //
44 //-------------------------------------------- 43 //-------------------------------------------------------------
>> 44 // Documentation:
>> 45 // Continuous processes acting on adjoint particles to correct continuously their weight during the adjoint reverse tracking.
>> 46 // 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.
>> 47 // 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
>> 48 // correction factor is 1.
>> 49 // 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
>> 50 // weight correction is neede and is given by exp(-(Sigma_tot_adj-Sigma_tot_fwd).dx)
>> 51 //
>> 52 //
>> 53 //
>> 54
45 55
46 #ifndef G4AdjointAlongStepWeightCorrection_h 56 #ifndef G4AdjointAlongStepWeightCorrection_h
47 #define G4AdjointAlongStepWeightCorrection_h 1 57 #define G4AdjointAlongStepWeightCorrection_h 1
48 58
49 #include "globals.hh" <<
50 #include "G4VContinuousProcess.hh" 59 #include "G4VContinuousProcess.hh"
>> 60 #include "globals.hh"
>> 61 #include "G4Material.hh"
>> 62 #include "G4MaterialCutsCouple.hh"
>> 63 #include "G4Track.hh"
>> 64 #include "G4ParticleChange.hh"
51 65
52 class G4AdjointCSManager; <<
53 class G4MaterialCutsCouple; <<
54 class G4ParticleDefinition; <<
55 class G4ParticleChange; <<
56 class G4Step; 66 class G4Step;
57 class G4Track; << 67 class G4ParticleDefinition;
>> 68
>> 69
58 70
59 class G4AdjointAlongStepWeightCorrection : pub 71 class G4AdjointAlongStepWeightCorrection : public G4VContinuousProcess
60 { 72 {
61 public: << 73 public:
62 explicit G4AdjointAlongStepWeightCorrection( << 74
63 const G4String& name = "ContinuousWeightCo << 75 G4AdjointAlongStepWeightCorrection(const G4String& name = "ContinuousWeightCorrection",
64 G4ProcessType type = fElectromagnetic); << 76 G4ProcessType type = fElectromagnetic);
65 << 77
66 ~G4AdjointAlongStepWeightCorrection() overri << 78 virtual ~G4AdjointAlongStepWeightCorrection();
67 << 79
68 G4VParticleChange* AlongStepDoIt(const G4Tra << 80
69 << 81 protected:
70 void ProcessDescription(std::ostream&) const << 82 virtual G4double GetContinuousStepLimit(const G4Track& track,
71 void DumpInfo() const override { ProcessDesc << 83 G4double previousStepSize,
72 << 84 G4double currentMinimumStep,
73 G4AdjointAlongStepWeightCorrection(G4Adjoint << 85 G4double& currentSafety);
74 delete; << 86
75 G4AdjointAlongStepWeightCorrection& operator << 87
76 const G4AdjointAlongStepWeightCorrection& << 88 //------------------------------------------------------------------------
77 << 89 // Generic methods common to all processes
78 protected: << 90 //------------------------------------------------------------------------
79 G4double GetContinuousStepLimit(const G4Trac << 91 public:
80 G4double pre << 92
81 G4double cur << 93 void PreparePhysicsTable(const G4ParticleDefinition&);
82 G4double& cu << 94
>> 95 void BuildPhysicsTable(const G4ParticleDefinition&);
>> 96
>> 97 G4VParticleChange* AlongStepDoIt(const G4Track&, const G4Step&);
>> 98
>> 99
>> 100 private:
83 101
84 private: <<
85 void DefineMaterial(const G4MaterialCutsCoup 102 void DefineMaterial(const G4MaterialCutsCouple* couple);
>> 103
86 104
87 const G4MaterialCutsCouple* fCurrentCouple = <<
88 G4AdjointCSManager* fCSManager = nullptr; <<
89 G4ParticleChange* fParticleChange; <<
90 105
91 G4double fPreStepKinEnergy = 1.; << 106 G4AdjointAlongStepWeightCorrection(G4AdjointAlongStepWeightCorrection &);
>> 107 G4AdjointAlongStepWeightCorrection & operator=(const G4AdjointAlongStepWeightCorrection &right);
>> 108
>> 109
>> 110
>> 111 protected:
>> 112
>> 113 G4ParticleChange* fParticleChange;
>> 114
>> 115
>> 116 private:
>> 117
>> 118 const G4Material* currentMaterial;
>> 119 const G4MaterialCutsCouple* currentCouple;
>> 120 size_t currentMaterialIndex;
>> 121 G4double currentTcut;
>> 122 G4double preStepKinEnergy;
>> 123
92 }; 124 };
93 125
94 inline void G4AdjointAlongStepWeightCorrection 126 inline void G4AdjointAlongStepWeightCorrection::DefineMaterial(
95 const G4MaterialCutsCouple* couple) << 127 const G4MaterialCutsCouple* couple)
96 { 128 {
97 if(couple != fCurrentCouple) << 129 if(couple != currentCouple) {
98 { << 130 currentCouple = couple;
99 fCurrentCouple = couple; << 131 currentMaterial = couple->GetMaterial();
>> 132 currentMaterialIndex = couple->GetIndex();
>> 133
100 } 134 }
101 } 135 }
>> 136
>> 137
102 138
103 #endif 139 #endif
104 140