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25 // 25 //
26 ////////////////////////////////////////////// 26 /////////////////////////////////////////////////////////////////////////////////
27 // Class: G4AdjointAlongStepWeightCorrecti 27 // Class: G4AdjointAlongStepWeightCorrection
28 // Author: L. Desorgher 28 // Author: L. Desorgher
29 // Organisation: SpaceIT GmbH 29 // Organisation: SpaceIT GmbH
30 ////////////////////////////////////////////// 30 /////////////////////////////////////////////////////////////////////////////////
31 // 31 //
32 // Documentation: 32 // Documentation:
33 // 33 //
34 // Continuous processes act on adjoint partic 34 // Continuous processes act on adjoint particles to continuously correct their
35 // weight during the adjoint reverse tracking 35 // weight during the adjoint reverse tracking. This process is needed when
36 // the adjoint cross sections are not scaled 36 // the adjoint cross sections are not scaled such that the total adjoint cross
37 // section matches the total forward cross se 37 // section matches the total forward cross section. By default the mode where
38 // the total adjoint cross section is equal t 38 // the total adjoint cross section is equal to the total forward cross section
39 // is used and therefore this along step weig 39 // is used and therefore this along step weightcorrection factor is 1. However
40 // in some cases (some energy ranges) the tot 40 // in some cases (some energy ranges) the total forward cross section or the
41 // total adjoint cross section can be zero. I 41 // total adjoint cross section can be zero. In this case the along step weight
42 // correction is needed and is given by exp(- 42 // correction is needed and is given by exp(-(Sigma_tot_adj-Sigma_tot_fwd).dx)
43 // 43 //
44 //-------------------------------------------- 44 //-------------------------------------------------------------
45 45
46 #ifndef G4AdjointAlongStepWeightCorrection_h 46 #ifndef G4AdjointAlongStepWeightCorrection_h
47 #define G4AdjointAlongStepWeightCorrection_h 1 47 #define G4AdjointAlongStepWeightCorrection_h 1
48 48
49 #include "globals.hh" 49 #include "globals.hh"
50 #include "G4VContinuousProcess.hh" 50 #include "G4VContinuousProcess.hh"
51 51
52 class G4AdjointCSManager; 52 class G4AdjointCSManager;
53 class G4MaterialCutsCouple; 53 class G4MaterialCutsCouple;
54 class G4ParticleDefinition; 54 class G4ParticleDefinition;
55 class G4ParticleChange; 55 class G4ParticleChange;
56 class G4Step; 56 class G4Step;
57 class G4Track; 57 class G4Track;
58 58
59 class G4AdjointAlongStepWeightCorrection : pub 59 class G4AdjointAlongStepWeightCorrection : public G4VContinuousProcess
60 { 60 {
61 public: 61 public:
62 explicit G4AdjointAlongStepWeightCorrection( 62 explicit G4AdjointAlongStepWeightCorrection(
63 const G4String& name = "ContinuousWeightCo 63 const G4String& name = "ContinuousWeightCorrection",
64 G4ProcessType type = fElectromagnetic); 64 G4ProcessType type = fElectromagnetic);
65 65
66 ~G4AdjointAlongStepWeightCorrection() overri 66 ~G4AdjointAlongStepWeightCorrection() override;
67 67
68 G4VParticleChange* AlongStepDoIt(const G4Tra 68 G4VParticleChange* AlongStepDoIt(const G4Track&, const G4Step&) override;
69 69
70 void ProcessDescription(std::ostream&) const 70 void ProcessDescription(std::ostream&) const override;
71 void DumpInfo() const override { ProcessDesc 71 void DumpInfo() const override { ProcessDescription(G4cout); };
72 72
73 G4AdjointAlongStepWeightCorrection(G4Adjoint 73 G4AdjointAlongStepWeightCorrection(G4AdjointAlongStepWeightCorrection&) =
74 delete; 74 delete;
75 G4AdjointAlongStepWeightCorrection& operator 75 G4AdjointAlongStepWeightCorrection& operator=(
76 const G4AdjointAlongStepWeightCorrection& 76 const G4AdjointAlongStepWeightCorrection& right) = delete;
77 77
78 protected: 78 protected:
79 G4double GetContinuousStepLimit(const G4Trac 79 G4double GetContinuousStepLimit(const G4Track& track,
80 G4double pre 80 G4double previousStepSize,
81 G4double cur 81 G4double currentMinimumStep,
82 G4double& cu 82 G4double& currentSafety) override;
83 83
84 private: 84 private:
85 void DefineMaterial(const G4MaterialCutsCoup 85 void DefineMaterial(const G4MaterialCutsCouple* couple);
86 86
87 const G4MaterialCutsCouple* fCurrentCouple = 87 const G4MaterialCutsCouple* fCurrentCouple = nullptr;
88 G4AdjointCSManager* fCSManager = nullptr; 88 G4AdjointCSManager* fCSManager = nullptr;
89 G4ParticleChange* fParticleChange; 89 G4ParticleChange* fParticleChange;
90 90
91 G4double fPreStepKinEnergy = 1.; 91 G4double fPreStepKinEnergy = 1.;
92 }; 92 };
93 93
94 inline void G4AdjointAlongStepWeightCorrection 94 inline void G4AdjointAlongStepWeightCorrection::DefineMaterial(
95 const G4MaterialCutsCouple* couple) 95 const G4MaterialCutsCouple* couple)
96 { 96 {
97 if(couple != fCurrentCouple) 97 if(couple != fCurrentCouple)
98 { 98 {
99 fCurrentCouple = couple; 99 fCurrentCouple = couple;
100 } 100 }
101 } 101 }
102 102
103 #endif 103 #endif
104 104