| Geant4 Cross Reference |
1 //
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25 //
26 // G4AdjointPrimaryGenerator
27 //
28 // Class description:
29 //
30 // This class represents the Primary Generator that generates vertex
31 // (energy, position and direction) of primary adjoint particles.
32 // It is used by G4AdjointPrimaryGeneratorAction. If the adjoint source is
33 // selected by the user as being on the external boundary of a volume,
34 // it uses the class G4AdjointPosOnPhysVolGenerator to generate the vertex
35 // positions and directions. Otherwise G4SingleParticleSource is used.
36
37 // Author: L. Desorgher, SpaceIT GmbH - November 2009
38 // Contract: ESA contract 21435/08/NL/AT
39 // Customer: ESA/ESTEC
40 // --------------------------------------------------------------------
41 #ifndef G4AdjointPrimaryGenerator_hh
42 #define G4AdjointPrimaryGenerator_hh 1
43
44 #include <vector>
45 #include <map>
46 #include <iterator>
47
48 #include "globals.hh"
49 #include "G4ThreeVector.hh"
50 #include"G4PhysicsFreeVector.hh"
51
52 class G4AdjointPosOnPhysVolGenerator;
53 class G4Event;
54 class G4SingleParticleSource;
55 class G4ParticleDefinition;
56 class G4Navigator;
57
58 class G4AdjointPrimaryGenerator
59 {
60 public:
61
62 G4AdjointPrimaryGenerator();
63 ~G4AdjointPrimaryGenerator();
64
65 G4AdjointPrimaryGenerator(const G4AdjointPrimaryGenerator&) = delete;
66 G4AdjointPrimaryGenerator& operator=(const G4AdjointPrimaryGenerator&) = delete;
67
68 public:
69
70 void GenerateAdjointPrimaryVertex(G4Event* anEvt,
71 G4ParticleDefinition* adj_part,
72 G4double E1, G4double E2);
73 void GenerateFwdPrimaryVertex(G4Event* anEvt,
74 G4ParticleDefinition* adj_part,
75 G4double E1, G4double E2);
76 void SetSphericalAdjointPrimarySource(G4double radius, G4ThreeVector pos);
77 void SetAdjointPrimarySourceOnAnExtSurfaceOfAVolume(const G4String& v_name);
78 void ComputeAccumulatedDepthVectorAlongBackRay(G4ThreeVector glob_pos,
79 G4ThreeVector direction,
80 G4double ekin,
81 G4ParticleDefinition* aPDef);
82 G4double SampleDistanceAlongBackRayAndComputeWeightCorrection(G4double& weight_corr);
83
84
85 private: // attributes
86
87 // The class responsible for the random generation of positions
88 // and direction of primaries for adjoint source set on the external
89 // surface of a G4 volume
90 //
91 G4AdjointPosOnPhysVolGenerator* theG4AdjointPosOnPhysVolGenerator = nullptr;
92
93 G4SingleParticleSource* theSingleParticleSource = nullptr;
94
95 // Type of adjoint source
96 // ----------------------
97 G4String type_of_adjoint_source; // Spherical ExtSurfaceOfAVolume
98 G4double radius_spherical_source = 0.0;
99 G4ThreeVector center_spherical_source;
100 G4Navigator* fLinearNavigator = nullptr;
101 G4PhysicsFreeVector* theAccumulatedDepthVector = nullptr;
102 };
103
104 #endif
105