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G4AlphaEvaporationProbability.cc
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25 //
26 // $Id: G4AlphaEvaporationProbability.cc 99962 2016-10-12 14:09:03Z 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 "G4SystemOfUnits.hh"
39 
41  G4EvaporationProbability(4,2,1.0,&theCoulombBarrier)
42 {}
43 
45 {}
46 
48 {
49  // Data comes from
50  // Dostrovsky, Fraenkel and Friedlander
51  // Physical Review, vol 116, num. 3 1959
52  //
53  // const G4int size = 5;
54  // G4double Zlist[5] = { 10.0, 20.0, 30.0, 50.0, 70.0};
55  // G4double Calpha[5] = { 0.10, 0.10, 0.10, 0.08, 0.06};
56 
57  G4int aZ = fragment.GetZ_asInt()-GetZ();
58  G4double C;
59 
60  if (aZ <= 30)
61  {
62  C = 0.10;
63  }
64  else if (aZ <= 50)
65  {
66  C = 0.1 - (aZ-30)*0.001;
67  }
68  else if (aZ < 70)
69  {
70  C = 0.08 - (aZ-50)*0.001;
71  }
72  else
73  {
74  C = 0.06;
75  }
76  return 1.0 + C;
77 }
78 
80 {
81  return 0.0;
82 }
virtual G4double CalcBetaParam(const G4Fragment &fragment)
virtual G4double CalcAlphaParam(const G4Fragment &fragment)
double G4double
Definition: G4Types.hh:76
G4int GetZ_asInt() const
Definition: G4Fragment.hh:264
int G4int
Definition: G4Types.hh:78
double C(double temp)