Geant4  9.6.p02
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G4LowEPComptonModel.hh
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1 //
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27 // | |
28 // | G4LowEPComptonModel-- Geant4 Monash University |
29 // | low energy Compton scattering model. |
30 // | J. M. C. Brown, Monash University, Australia |
31 // | ## Unpolarised photons only ## |
32 // | |
33 // | |
34 // *********************************************************************
35 // | |
36 // | The following is a Geant4 class to simulate the process of |
37 // | bound electron Compton scattering. General code structure is |
38 // | based on G4LowEnergyCompton.cc and G4LivermoreComptonModel.cc. |
39 // | Algorithms for photon energy, and ejected Compton electron |
40 // | direction taken from: |
41 // | |
42 // | J. M. C. Brown, M. R. Dimmock, J. E. Gillam and D. M. Paganin, |
43 // | "A low energy bound atomic electron Compton scattering model |
44 // | for Geant4", IEEE Transactions on Nuclear Science, submitted. |
45 // | |
46 // | The author acknowledges the work of the Geant4 collaboration |
47 // | in developing the following algorithms that have been employed |
48 // | or adapeted for the present software: |
49 // | |
50 // | # sampling of photon scattering angle, |
51 // | # target element selection in composite materials, |
52 // | # target shell selection in element, |
53 // | # and sampling of bound electron momentum from Compton profiles. |
54 // | |
55 // *********************************************************************
56 // | |
57 // | History: |
58 // | -------- |
59 // | |
60 // | Nov. 2011 JMCB - First version |
61 // | Feb. 2012 JMCB - Migration to Geant4 9.5 |
62 // | Sep. 2012 JMCB - Final fixes for Geant4 9.6 |
63 // | |
64 // *********************************************************************
65 
66 #ifndef G4LowEPComptonModel_h
67 #define G4LowEPComptonModel_h 1
68 
69 #include "G4VEmModel.hh"
70 #include "G4ShellData.hh"
71 #include "G4DopplerProfile.hh"
72 
76 class G4VEMDataSet;
77 
79 {
80 
81 public:
82 
84  const G4String& nam = "LowEPComptonModel");
85 
86  virtual ~G4LowEPComptonModel();
87 
88  virtual void Initialise(const G4ParticleDefinition*, const G4DataVector&);
89 
91  G4double kinEnergy,
92  G4double Z,
93  G4double A=0,
94  G4double cut=0,
95  G4double emax=DBL_MAX );
96 
97  virtual void SampleSecondaries(std::vector<G4DynamicParticle*>*,
98  const G4MaterialCutsCouple*,
99  const G4DynamicParticle*,
100  G4double tmin,
101  G4double maxEnergy);
102 
103 protected:
104 
106 
107 private:
108 
109  G4double lowEnergyLimit;
110  G4double highEnergyLimit;
111  G4bool isInitialised;
112  G4int verboseLevel;
113 
114  G4VEMDataSet* scatterFunctionData;
115  G4VCrossSectionHandler* crossSectionHandler;
116 
117  G4VAtomDeexcitation* fAtomDeexcitation;
118 
119  G4ShellData shellData;
120  G4DopplerProfile profileData;
121 
122  G4LowEPComptonModel & operator=(const G4LowEPComptonModel &right);
124 
125 
126 };
127 
128 //****************************************************************************
129 
130 #endif