| Geant4 Cross Reference |
1 // 1
2 // *******************************************
3 // * License and Disclaimer
4 // *
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17 // *
18 // * This code implementation is the result
19 // * technical work of the GEANT4 collaboratio
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21 // * any work based on the software) you ag
22 // * use in resulting scientific publicati
23 // * acceptance of all terms of the Geant4 Sof
24 // *******************************************
25 // *******************************************
26 // *******************************************
27 // |
28 // | G4LowEPComptonModel-- Geant4
29 // | low energy Compton scat
30 // | J. M. C. Brown, Monash Univer
31 // | ## Unpolarised photons
32 // |
33 // |
34 // *******************************************
35 // |
36 // | The following is a Geant4 class to simula
37 // | bound electron Compton scattering. Genera
38 // | based on G4LowEnergyCompton.cc and G4Live
39 // | Algorithms for photon energy, and ejected
40 // | direction taken from:
41 // |
42 // | J. M. C. Brown, M. R. Dimmock, J. E. Gill
43 // | "A low energy bound atomic electron Compt
44 // | for Geant4", NIMB, Vol. 338, 77-88, 2014
45 // |
46 // | The author acknowledges the work of the G
47 // | in developing the following algorithms th
48 // | or adapeted for the present software:
49 // |
50 // | # sampling of photon scattering angle,
51 // | # target element selection in composite
52 // | # target shell selection in element,
53 // | # and sampling of bound electron momentu
54 // |
55 // *******************************************
56 // |
57 // | History:
58 // | --------
59 // |
60 // | Nov. 2011 JMCB - First version
61 // | Feb. 2012 JMCB - Migration to Geant
62 // | Sep. 2012 JMCB - Final fixes for Ge
63 // | Feb. 2013 JMCB - Geant4 9.6 FPE fix
64 // | Jan. 2015 JMCB - Migration to MT (B
65 // | implementation)
66 // | Feb. 2016 JMCB - Geant4 10.2 FPE fi
67 // |
68 // *******************************************
69
70 #ifndef G4LowEPComptonModel_h
71 #define G4LowEPComptonModel_h 1
72
73 #include "G4VEmModel.hh"
74 #include "G4PhysicsFreeVector.hh"
75
76 class G4ParticleChangeForGamma;
77 class G4VAtomDeexcitation;
78 class G4ShellData;
79 class G4DopplerProfile;
80
81 class G4LowEPComptonModel : public G4VEmModel
82 {
83
84 public:
85
86 explicit G4LowEPComptonModel(const G4Particl
87 const G4String& nam = "LowEPComp
88 virtual ~G4LowEPComptonModel();
89
90 void Initialise(const G4ParticleDefinition*,
91 void InitialiseLocal(const G4ParticleDefinit
92 G4VEmModel* mas
93
94 void InitialiseForElement(const G4ParticleDe
95
96 G4double ComputeCrossSectionPerAtom( const G
97 G4double kinEnergy,
98 G4double Z,
99 G4double A=0,
100 G4double cut=0,
101 G4double emax=DBL_MAX ) overrid
102
103 void SampleSecondaries(std::vector<G4Dynamic
104 const G4MaterialCutsCouple*,
105 const G4DynamicParticle*,
106 G4double tmin,
107 G4double maxEnergy) override;
108
109 G4LowEPComptonModel & operator=(const G4Low
110 G4LowEPComptonModel(const G4LowEPComptonMod
111
112 private:
113 void ReadData(size_t Z, const char* path = 0
114 G4double ComputeScatteringFunction(G4double
115
116 G4ParticleChangeForGamma* fParticleChange;
117 G4VAtomDeexcitation* fAtomDeexcitation;
118 static G4ShellData* shellData;
119 static G4DopplerProfile* profileData;
120
121 static const G4int maxZ = 99;
122 static G4PhysicsFreeVector* data[100];
123 static const G4double ScatFuncFitParam[101][
124
125 G4int verboseLevel;
126 G4bool isInitialised;
127 };
128
129 //********************************************
130
131 #endif
132