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G4ElectroNuclearCrossSection.hh
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27 // GEANT4 physics class: G4ElectroNuclearCrossSection -- header file
28 // M.V. Kossov, ITEP(Moscow), 24-OCT-01
29 // The last update: M.V. Kossov, CERN/ITEP (Moscow) 25-Sept-03
30 
31 // A. Dotti 2-May-2013: Re-write caching logic and optimizations
32 
33 #ifndef G4ElectroNuclearCrossSection_h
34 #define G4ElectroNuclearCrossSection_h 1
35 
37 #include "G4DynamicParticle.hh"
38 #include "G4Element.hh"
39 #include "G4ParticleTable.hh"
40 #include "G4NucleiProperties.hh"
41 #include "G4NistManager.hh"
42 #include <vector>
43 #include "Randomize.hh"
44 #include "G4Electron.hh"
45 #include "G4Positron.hh"
46 #include <map>
47 
48 //A cache element
49 struct cacheEl_t {
56 };
57 
59 {
60 public:
61 
64 
65  static const char* Default_Name() {return "ElectroNuclearXS";}
66 
67  virtual void CrossSectionDescription(std::ostream&) const;
68 
70  const G4Material*);
72  const G4Material* mat);
73 
75 
77 
79 
80 private:
81  G4int GetFunctions(G4double a, G4double* x, G4double* y, G4double* z);
82 
83  G4double ThresholdEnergy(G4int Z, G4int N);
84  G4double SolveTheEquation(G4double f);
85  G4double Fun(G4double x);
86  G4double DFun(G4double x);
87 
88  G4double HighEnergyJ1(G4double lE);
89  G4double HighEnergyJ2(G4double lE, G4double E);
90  G4double HighEnergyJ3(G4double lE, G4double E2);
91 
92 // Body
93 private:
94  G4int currentN;
95  G4int currentZ;
96 
97  //Cache structure
98  G4int lastZ;
99  std::vector<cacheEl_t*> cache;
100  cacheEl_t* lastUsedCacheEl;
101  G4NistManager* nistmngr;
102 
103  //Cache values for XS
104  G4double lastE ; //Last used energy value
105  G4double lastSig; //Last used XS value
106  G4double lastG; //Last value of gamma=lnE-ln(me)
107  G4int lastL; //Last used in the cross section TheLastBin
108 
109  const G4double mNeut;
110  const G4double mProt;
111 };
112 
113 #endif
std::vector< ExP01TrackerHit * > a
Definition: ExP01Classes.hh:33
tuple x
Definition: test.py:50
int G4int
Definition: G4Types.hh:78
virtual G4bool IsElementApplicable(const G4DynamicParticle *, G4int Z, const G4Material *)
virtual void CrossSectionDescription(std::ostream &) const
bool G4bool
Definition: G4Types.hh:79
G4double GetVirtualFactor(G4double nu, G4double Q2)
virtual G4double GetElementCrossSection(const G4DynamicParticle *, G4int Z, const G4Material *mat)
tuple z
Definition: test.py:28
**D E S C R I P T I O N
Definition: HEPEvtcom.cc:77
double G4double
Definition: G4Types.hh:76