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25 //
26 //
27 // Author: Luciano Pandola
28 //
29 // History:
30 // -----------
31 // 03 Dec 2009 L. Pandola 1st implementation.
32 // 25 May 2011 L. Pandola Renamed (make v2008 as default Penelope)
33 // 27 Sep 2013 L. Pandola Migration to MT paradigm
34 // 04 Mar 2021 L. Pandola Replace maps with arrays
35 //
36 // -------------------------------------------------------------------
37 //
38 // Class description:
39 // Low Energy Electromagnetic Physics, Rayleigh Scattering
40 // with the model from Penelope, version 2008
41 // -------------------------------------------------------------------
42
43 #ifndef G4PENELOPERAYLEIGHMODEL_HH
44 #define G4PENELOPERAYLEIGHMODEL_HH 1
45
46 #include "globals.hh"
47 #include "G4VEmModel.hh"
48 #include "G4DataVector.hh"
49 #include "G4ParticleChangeForGamma.hh"
50
51 class G4ParticleDefinition;
52 class G4DynamicParticle;
53 class G4MaterialCutsCouple;
54 class G4Material;
55 class G4PhysicsFreeVector;
56 class G4PenelopeSamplingData;
57
58 class G4PenelopeRayleighModel : public G4VEmModel
59 {
60
61 public:
62 explicit G4PenelopeRayleighModel(const G4ParticleDefinition* p=nullptr,
63 const G4String& processName ="PenRayleigh");
64
65 virtual ~G4PenelopeRayleighModel();
66
67 void Initialise(const G4ParticleDefinition*, const G4DataVector&) override;
68 void InitialiseLocal(const G4ParticleDefinition*,
69 G4VEmModel *masterModel) override;
70
71 G4double ComputeCrossSectionPerAtom(const G4ParticleDefinition*,
72 G4double kinEnergy,
73 G4double Z,
74 G4double A=0,
75 G4double cut=0,
76 G4double emax=DBL_MAX) override;
77
78 void SampleSecondaries(std::vector<G4DynamicParticle*>*,
79 const G4MaterialCutsCouple*,
80 const G4DynamicParticle*,
81 G4double tmin,
82 G4double maxEnergy) override;
83
84 void SetVerbosityLevel(G4int lev){fVerboseLevel = lev;};
85 G4int GetVerbosityLevel(){return fVerboseLevel;};
86
87 //Testing purposes
88 void DumpFormFactorTable(const G4Material*);
89
90 G4PenelopeRayleighModel& operator=(const G4PenelopeRayleighModel &right) = delete;
91 G4PenelopeRayleighModel(const G4PenelopeRayleighModel&) = delete;
92
93 protected:
94 G4ParticleChangeForGamma* fParticleChange;
95 const G4ParticleDefinition* fParticle;
96
97 private:
98 void SetParticle(const G4ParticleDefinition*);
99 //Helper methods
100 void ReadDataFile(G4int);
101 void ClearTables();
102 void BuildFormFactorTable(const G4Material*);
103 void GetPMaxTable(const G4Material*);
104
105 G4double GetFSquared(const G4Material*,const G4double);
106 void InitializeSamplingAlgorithm(const G4Material*);
107
108 G4DataVector fLogQSquareGrid; //log(Q^2) grid for interpolation
109 std::map<const G4Material*,G4PhysicsFreeVector*> *fLogFormFactorTable; //log(Q^2) vs. log(F^2)
110
111 G4DataVector fLogEnergyGridPMax; //energy grid for PMac (and originally for the x-section)
112 std::map<const G4Material*,G4PhysicsFreeVector*> *fPMaxTable; //E vs. Pmax
113 std::map<const G4Material*,G4PenelopeSamplingData*> *fSamplingTable;
114
115 //Internal tables and manager methods
116 static const G4int fMaxZ =99;
117 static G4PhysicsFreeVector* fLogAtomicCrossSection[fMaxZ+1];
118 static G4PhysicsFreeVector* fAtomicFormFactor[fMaxZ+1];
119
120 //Intrinsic energy limits of the model: cannot be extended by
121 //the parent process
122 G4double fIntrinsicLowEnergyLimit;
123 G4double fIntrinsicHighEnergyLimit;
124 G4int fVerboseLevel;
125 G4bool fIsInitialised;
126 //Used only for G4EmCalculator and Unit Tests
127 G4bool fLocalTable;
128 };
129
130 #endif
131
132