Geant4  10.01.p02
G4VhShellCrossSection.cc
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26 // $Id: G4UAtomicDeexcitation.cc,v 1.11
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28 // -------------------------------------------------------------------
29 //
30 // GEANT4 Class file
31 //
32 //
33 // File name: G4VhShellCrossSection
34 //
35 // Author: V.Ivanchenko (Vladimir.Ivanchenko@cern.ch)
36 //
37 // History:
38 // -----------
39 // 20 Oct 2001 V.Ivanchenko 1st implementation
40 // 24 Oct 2001 MGP Minor clean-up
41 // 29 Oct 2001 VI Add delta energy
42 //
43 // -------------------------------------------------------------------
44 
45 #include "G4VhShellCrossSection.hh"
46 #include "Randomize.hh"
47 
49 {}
50 
52 {}
53 
55 {}
56 
58  G4double incidentEnergy,
59  G4double mass,
60  G4double deltaEnergy,
61  const G4Material* mat)
62 // returns the shell ionized if the shell exists. If the shell is not counted, it returns -1
63 
64 {
65  std::vector<G4double> p = Probabilities(Z,incidentEnergy,mass,deltaEnergy,mat);
66  G4int shell = -1;
67  size_t nShells = p.size();
68  G4double q = G4UniformRand();
69  for (size_t i=0; i<nShells; i++) {
70 
71  if (p[i] >= q) {
72  shell = i;
73  break;
74  }
75  q -= p[i];
76  }
77  return shell;
78 }
79 
80 
G4String name
Definition: TRTMaterials.hh:40
int G4int
Definition: G4Types.hh:78
G4int SelectRandomShell(G4int Z, G4double incidentEnergy, G4double mass, G4double deltaEnergy, const G4Material *mat)
virtual std::vector< G4double > Probabilities(G4int Z, G4double incidentEnergy, G4double mass, G4double deltaEnergy, const G4Material *mat)=0
G4VhShellCrossSection(const G4String &xname="")
#define G4UniformRand()
Definition: Randomize.hh:93
virtual void SetTotalCS(G4double)
double G4double
Definition: G4Types.hh:76