Geant4  10.02.p01
G4AlphaEvaporationProbability.cc
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26 // $Id: G4AlphaEvaporationProbability.cc 89518 2015-04-15 14:43:30Z gcosmo $
27 //
28 // J.M. Quesada (August2008). Based on:
29 //
30 // Hadronic Process: Nuclear De-excitations
31 // by V. Lara (Oct 1998)
32 //
33 // Modified:
34 // 03-09-2008 J.M. Quesada for external choice of inverse cross section option
35 // 17-11-2010 V.Ivanchenko integer Z and A
36 
38 #include "G4KalbachCrossSection.hh"
39 #include "G4SystemOfUnits.hh"
40 
42  G4EvaporationProbability(4,2,1.0,&theCoulombBarrier)
43 {}
44 
46 {}
47 
49 {
50  // Data comes from
51  // Dostrovsky, Fraenkel and Friedlander
52  // Physical Review, vol 116, num. 3 1959
53  //
54  // const G4int size = 5;
55  // G4double Zlist[5] = { 10.0, 20.0, 30.0, 50.0, 70.0};
56  // G4double Calpha[5] = { 0.10, 0.10, 0.10, 0.08, 0.06};
57 
58  G4int aZ = fragment.GetZ_asInt()-GetZ();
59  G4double C;
60 
61  if (aZ <= 30)
62  {
63  C = 0.10;
64  }
65  else if (aZ <= 50)
66  {
67  C = 0.1 - (aZ-30)*0.001;
68  }
69  else if (aZ < 70)
70  {
71  C = 0.08 - (aZ-50)*0.001;
72  }
73  else
74  {
75  C = 0.06;
76  }
77  return 1.0 + C;
78 }
79 
81 {
82  return 0.0;
83 }
virtual G4double CalcBetaParam(const G4Fragment &fragment)
double C(double temp)
int G4int
Definition: G4Types.hh:78
virtual G4double CalcAlphaParam(const G4Fragment &fragment)
G4int GetZ_asInt() const
Definition: G4Fragment.hh:256
double G4double
Definition: G4Types.hh:76