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G4CrossSectionElastic.cc
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25 //
26 //
27 // -------------------------------------------------------------------
28 //
29 // GEANT4 Class file
30 //
31 //
32 // File name: G4CrossSectionElastic
33 //
34 // Author: Vladimir Ivanchenko
35 //
36 // Creation date: 19.11.2010
37 // Modifications:
38 //
39 // Class Description:
40 //
41 // Wrapper for elastic cross section build from a component
42 //
43 // -------------------------------------------------------------------
44 //
45 
46 #include "G4CrossSectionElastic.hh"
48 #include "G4ParticleDefinition.hh"
49 #include "G4DynamicParticle.hh"
50 #include "G4Element.hh"
51 #include "G4NistManager.hh"
52 #include "G4HadronicParameters.hh"
53 
55  G4int zmin, G4int zmax,
57  : G4VCrossSectionDataSet(c->GetName()), component(c),
58  Zmin(zmin),Zmax(zmax)
59 {
61  SetMinKinEnergy(Emin);
62  SetMaxKinEnergy(Emax);
63 }
64 
66 {}
67 
69  G4int Z, const G4Material*)
70 {
72  return
73  (Z >= Zmin && Z <= Zmax && e >= GetMinKinEnergy() && e <= GetMaxKinEnergy());
74 }
75 
76 G4double
78  G4int Z,
79  const G4Material*)
80 {
82  p->GetKineticEnergy(),
83  Z, nist->GetAtomicMassAmu(Z));
84 }
85 
87 {
89  // For ions, the max energy of applicability of the cross sections must scale
90  // with the absolute baryonic number; however, the cross sections objects are
91  // often shared between the different types of ions (d, t, He3, alpha, and
92  // genericIon) therefore we scale by Zmax - which is safely larger than the
93  // number of nucleons of the heaviest nuclides.
95  ( std::abs( p.GetBaryonNumber() ) > 1 ? Zmax : 1 ) );
96 }
97 
99 {
101 }
102 
103 void G4CrossSectionElastic::CrossSectionDescription(std::ostream& outFile) const
104 {
105  component->Description(outFile);
106 }
107 
108