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25 // 25 //
26 // ------------------------------------------- 26 // -------------------------------------------------------------------
27 // 27 //
28 // Geant4 Class header file << 28 // GEANT4 Class header file
>> 29 //
29 // 30 //
30 // File name: G4PolarizedCompton 31 // File name: G4PolarizedCompton
31 // 32 //
32 // Author: Andreas Schaelicke 33 // Author: Andreas Schaelicke
33 // based on code by Michel Mair 34 // based on code by Michel Maire / Vladimir IVANTCHENKO
34 // <<
35 // Class description 35 // Class description
36 // polarized version of Compton scattering << 36 //
>> 37 // modified version respecting media and beam polarization
>> 38 // using the stokes formalism
>> 39 //
>> 40 // Creation date: 01.05.2005
>> 41 //
>> 42 // Modifications:
>> 43 //
>> 44 // 01-01-05, include polarization description (A.Stahl)
>> 45 // 01-01-05, create asymmetry table and determine interactionlength (A.Stahl)
>> 46 // 01-05-05, update handling of media polarization (A.Schalicke)
>> 47 // 01-05-05, update polarized differential cross section (A.Schalicke)
>> 48 // 26-07-06, cross section recalculated (P.Starovoitov)
>> 49 // 09-08-06, make it work under current geant4 release (A.Schalicke)
>> 50 // 11-06-07, add PostStepGetPhysicalInteractionLength (A.Schalicke)
37 // 51 //
38 // ------------------------------------------- 52 // -----------------------------------------------------------------------------
39 53
>> 54 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 55 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
>> 56
40 #ifndef PolarizedComptonScattering_h 57 #ifndef PolarizedComptonScattering_h
41 #define PolarizedComptonScattering_h 1 58 #define PolarizedComptonScattering_h 1
42 59
43 #include "globals.hh" 60 #include "globals.hh"
44 #include "G4Gamma.hh" <<
45 #include "G4VEmProcess.hh" 61 #include "G4VEmProcess.hh"
>> 62 #include "G4Gamma.hh"
>> 63
>> 64 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
46 65
47 class G4DynamicParticle; <<
48 class G4MaterialCutsCouple; <<
49 class G4ParticleDefinition; 66 class G4ParticleDefinition;
>> 67 class G4MaterialCutsCouple;
>> 68 class G4DynamicParticle;
>> 69
50 class G4PolarizedComptonModel; 70 class G4PolarizedComptonModel;
51 71
52 class G4PolarizedCompton : public G4VEmProcess 72 class G4PolarizedCompton : public G4VEmProcess
53 73
54 { 74 {
55 public: << 75 public: // with description
56 explicit G4PolarizedCompton(const G4String& << 76
57 G4ProcessType ty << 77 explicit G4PolarizedCompton(const G4String& processName ="pol-compt",
>> 78 G4ProcessType type = fElectromagnetic);
58 79
59 virtual ~G4PolarizedCompton() override; << 80 virtual ~G4PolarizedCompton();
60 81
61 // true for Gamma only. << 82 // true for Gamma only.
62 virtual G4bool IsApplicable(const G4Particle 83 virtual G4bool IsApplicable(const G4ParticleDefinition&) override;
63 84
64 virtual void ProcessDescription(std::ostream << 85 // Print few lines of informations about the process: validity range,
65 virtual void DumpInfo() const override { Pro << 86 virtual void PrintInfo() override;
66 87
67 void SetModel(const G4String& name); 88 void SetModel(const G4String& name);
68 89
69 G4PolarizedCompton& operator=(const G4Polari << 90 protected:
70 G4PolarizedCompton(const G4PolarizedCompton& <<
71 91
72 protected: <<
73 virtual void InitialiseProcess(const G4Parti 92 virtual void InitialiseProcess(const G4ParticleDefinition*) override;
74 93
>> 94 // added for polarization treatment of polarized media:
75 virtual void BuildPhysicsTable(const G4Parti 95 virtual void BuildPhysicsTable(const G4ParticleDefinition&) override;
76 96
77 virtual G4double GetMeanFreePath(const G4Tra << 97 virtual G4double GetMeanFreePath(const G4Track& aTrack,
78 G4double pr << 98 G4double previousStepSize,
79 G4ForceCond << 99 G4ForceCondition* condition) override;
80 100
81 virtual G4double PostStepGetPhysicalInteract 101 virtual G4double PostStepGetPhysicalInteractionLength(
82 const G4Track& track, G4double previousSte << 102 const G4Track& track,
83 G4ForceCondition* condition) override; << 103 G4double previousStepSize,
>> 104 G4ForceCondition* condition) override;
>> 105
>> 106 private:
84 107
85 private: <<
86 static G4PhysicsTable* theAsymmetryTable; / <<
87 void CleanTable(); 108 void CleanTable();
88 109
89 void BuildAsymmetryTable(const G4ParticleDef 110 void BuildAsymmetryTable(const G4ParticleDefinition& part);
90 111
91 G4double ComputeAsymmetry(G4double energy, c << 112 G4double ComputeAsymmetry(G4double energy,
92 const G4ParticleDe << 113 const G4MaterialCutsCouple* couple,
93 G4double& tAsymmet << 114 const G4ParticleDefinition& particle,
>> 115 G4double cut,
>> 116 G4double & tAsymmetry);
94 117
95 G4double ComputeSaturationFactor(const G4Tra 118 G4double ComputeSaturationFactor(const G4Track& aTrack);
96 << 119
97 G4PolarizedComptonModel* fEmModel; << 120 G4PolarizedCompton& operator=(const G4PolarizedCompton &right) = delete;
98 << 121 G4PolarizedCompton(const G4PolarizedCompton& ) = delete;
99 G4int fType; << 122
100 << 123 G4bool buildAsymmetryTable;
101 G4bool fBuildAsymmetryTable; << 124 G4bool useAsymmetryTable;
102 G4bool fUseAsymmetryTable; << 125
103 << 126 G4bool isInitialised;
104 G4bool fIsInitialised; << 127 G4int mType;
>> 128
>> 129 // added for polarization treatment:
>> 130 G4PolarizedComptonModel* emModel;
>> 131 static G4PhysicsTable* theAsymmetryTable; // table for crosssection assymmetry
>> 132 G4ThreeVector targetPolarization;
105 }; 133 };
106 134
107 //....oooOO0OOooo........oooOO0OOooo........oo 135 //....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
108 << 136
109 #endif 137 #endif
>> 138
110 139